CN105328622A - Ratchet wheel tool - Google Patents
Ratchet wheel tool Download PDFInfo
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- CN105328622A CN105328622A CN201410263506.1A CN201410263506A CN105328622A CN 105328622 A CN105328622 A CN 105328622A CN 201410263506 A CN201410263506 A CN 201410263506A CN 105328622 A CN105328622 A CN 105328622A
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- 230000002146 bilateral effect Effects 0.000 claims description 4
- 239000008188 pellet Substances 0.000 description 10
- 230000000007 visual effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
A ratchet wheel tool comprises a rod assembly, a handle and a ratchet wheel device, wherein the handle is connected with the ratchet wheel device. A rod assembly extends inside the ratchet wheel device from the front end of the ratchet wheel device along the center axis of the ratchet wheel device and is connected with the ratchet wheel device. The rod assembly comprises a screwdriver rod and an extension part. The extension part penetrates through the tail end of the ratchet wheel device from the front end of the ratchet wheel device along the center axis of the ratchet wheel device and is connected with the ratchet wheel device. The screwdriver rod and the extension part are integrally formed or independently designed, and according to the design, shaking of the screwdriver rod is avoided. The ratchet wheel tool further comprises an illuminating device. The rotation force for rotation of the ratchet wheel tool is small, the torque transmitting ability is high, and the illuminating function is realized.
Description
Technical field
The present invention relates to a kind of hand-operated tools, more particularly, relate to a kind of ratchet tool.
Background technology
Screwdriver is that a kind of being used for twists screw with the instrument forcing it in place, comprises batch bar and handle.Existing screwdriver, batch bar usually and handle be fixed together, during use, the hand due to gripping handle is merely able to the less angle of rotation one.Therefore, when needs are to a part continuous several times turn, needing therebetween is deadlocked allows hand turn round an angle in the other direction: a kind of method is that hand-held screwdriver temporarily withdraws realization revolution in the other direction from part, and this mode needs again by screwdriver alignment element; Another kind method realizes turning round in the other direction by the hand release handle of another Hand supplementary by gripping handle.Obvious, all there is inconvenience in these two kinds of methods, affects operating efficiency; Also easy screw terminal is twisted bad.
In order to overcome above-mentioned deficiency, directional manual screwdriver should need and give birth to, " orientation " function that this manual screw is criticized carries working beam to a direction rotary handle handle in season to rotate to apply moment of torsion to part together, rotate to another direction rotary handle handle in season relative to working beam, working beam is positioned on part, therefore can to hold with a hand handle continuous print to rotate back and forth, do not need therebetween to pause, reach the object screwing or unscrew part fast, further, this action can commutate.
China ZL201010184827.4 discloses a kind of ratchet screw driver, comprise handle and batch bar, the front end of handle has pawl base, pawl base is arranged two reverse swingable ratchets and the pulling part for controlling these two detent positions states, pulling part has the shifting block of two corresponding above-mentioned two ratchets of difference, the end criticizing bar has ratchet sleeve, this ratchet sleeve to be enclosed within described pawl base and at least to engage with in described two ratchets, and establishes a manipulation part can located on described handle for converting the position of described pulling part.By analysis and practical proof, there is following defect in above-mentioned ratchet screw driver:
1, adopt the axis hole on ratchet sleeve to match with the shaft part extended to forward in axis hole on pawl base, cause the mating surface of batch bar and pawl base little, batch relative pawl base of bar rocks severity, twists screw weak effect.
2, the number of teeth that engages with ratchet sleeve of ratchet is few, and the ability of transmitting torque is little.
3, the number of teeth of ratchet is less, and when turning round, required turning power is comparatively large, and like this when the screwdriver that more stubborn pretightning forces are little, " orientation " function can not well realize.
Therefore, market needs one both to solve batch bar and rock problem, efficient screwdriver again.
In addition, because the ratchet screw driver scope of application is wide, when insufficient light or darker occasion use, usually need to use extra lighting apparatus, this is just for operation brings inconvenience.Therefore, market needs a kind of ratchet screw driver of having illumination function.
Summary of the invention
An object of the present invention is to provide a kind of ratchet tool reducing batch bar and rock, its bar assembly extends to the inside of ratchet device, and ratchet tool structural design is simple, easy to use.
Another object of the present invention be by changing ratchet, the number of teeth of ratchet solves the little problem of the ability that is large, transmitting torque of required turning power when normal screws criticizes revolution.
Another object of the present invention is by introducing lighting device, realizing normal screws and criticize the illumination functions that cannot realize.
For achieving the above object, the invention provides a kind of ratchet tool, comprise bar assembly, handle, and ratchet device, wherein, handle is connected with ratchet device, and bar assembly extends to the inside of ratchet device along the central shaft of ratchet device from the front end of ratchet device and is connected with ratchet device.
Preferably, bar assembly extends through the end of ratchet device along the central shaft of ratchet device from the front end of ratchet device and is connected with ratchet device; More preferably, bar assembly is connected with ratchet device removably; Further, bar assembly has the first end away from handle and the second end near handle, and first end or the second end can extend to the inside of ratchet device along the central shaft of ratchet device from the front end of ratchet device and be connected with ratchet device.
Further, bar assembly comprises batch bar and extension, and extension extends to the inside of ratchet device along the central shaft of ratchet device from the front end of ratchet device and is connected with ratchet device.
Further, bar is criticized and extension is designed to one-body molded or independent design.
Further, ratchet device comprises pawl base, on pawl base, centrally axle bilateral symmetry arranges two swingable the first ratchets and the second ratchet, with the commutation element for controlling the first and second detent positions states, commutation element having two is separately positioned on outside the first ratchet and the second ratchet, and be respectively used to the first stopper and second stopper of promotion first ratchet and the second ratchet, first and second ratchets and the first and second stopper outsides are provided with ratchet cover, the inwall of ratchet cover has the interior ratchet of annular distribution, ratchet cover is engaged mutually with the tooth on the first ratchet and the second ratchet.
Further, the number of teeth of the interior ratchet of ratchet cover, more than 60, is preferably 72; The number of teeth of the tooth on the first ratchet, more than 3, is preferably 5, and the number of teeth of the tooth on the second ratchet, more than 3, is preferably 5.
Further, the outside of ratchet cover is also provided with the positioner be connected with commutation element, and positioner is preferably the outside that annular casing is enclosed within ratchet cover.
Further, ratchet tool also comprises lighting device, and positioner comprises an inner chamber, and lighting device is installed in the lumen, the power supply that lighting device comprises circuit board and installs on circuit boards.
Wherein, ratchet device comprises two ends, and near one end of ratchet cover and the other end away from ratchet cover, the front end of ratchet device refers to one end that ratchet device overlaps near ratchet, and correspondingly, the end of ratchet device refers to the other end that ratchet device overlaps away from ratchet.
Wherein, " extend to the inside of ratchet device " to comprise through the end of ratchet device with not through the end both of these case of ratchet device.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the front view of a preferred embodiment of ratchet tool of the present invention.
Fig. 2 is the longitudinal sectional view of ratchet tool in Fig. 1, and its king-rod assembly is through pawl base.
Fig. 3 is the transverse sectional view of ratchet tool in Fig. 1, and its king-rod assembly is through pawl base.
Fig. 4 is the overall schematic of the reversing arrangement of ratchet tool in Fig. 1, bar assembly and ratchet device.
Fig. 5 is the exploded perspective figure at a visual angle of Fig. 4.
Fig. 6 is the exploded perspective figure at another visual angle of Fig. 4.
Fig. 7 is the structural representation of Fig. 1 king-rod assembly.
Fig. 8 is that in Fig. 1, operate portions is the structural representation of sleeve.
Fig. 9 is that in Fig. 1, operate portions is another structural representation of sleeve.
Figure 10 is that on the ratchet device in Fig. 4, B-B is to sectional view, and wherein positioner mediates.
Figure 11 is that on the ratchet device in Fig. 4, C-C is to sectional view, and wherein positioner mediates.
Figure 12 is that on the ratchet device in Fig. 4, B-B is to sectional view, and wherein positioner turns clockwise.
Figure 13 is that on the ratchet device in Fig. 4, C-C is to sectional view, and wherein positioner turns clockwise.
Figure 14 is that on the ratchet device in Fig. 4, B-B is to sectional view, and wherein positioner is rotated counterclockwise.
Figure 15 is that on the ratchet device in Fig. 4, C-C is to sectional view, and wherein positioner is rotated counterclockwise.
Figure 16 is the sectional view of another preferred embodiment of ratchet tool of the present invention.
Figure 17 is the exploded perspective figure at a visual angle of the reversing arrangement of Figure 16 ratchet tool, bar assembly and ratchet device.
Figure 18 is the exploded perspective figure at another visual angle of the reversing arrangement of Figure 16 ratchet tool, bar assembly and ratchet device.
Figure 19 is the exploded perspective figure at a visual angle of Figure 18 king-rod assembly and ratchet cover.
Figure 20 is that in Figure 16, operate portions is the structural representation of sleeve.
Figure 21 is that in Figure 16, operate portions is another structural representation of sleeve.
Figure 22 is the front view of another preferred embodiment of ratchet tool of the present invention.
Figure 23 is the longitudinal sectional view of ratchet tool in Figure 22, and its king-rod assembly is through pawl base.
Figure 24 is the schematic diagram at a visual angle of lighting device in Figure 23.
Figure 25 is the schematic diagram at another visual angle of lighting device in Figure 23.
Detailed description of the invention
Embodiment one
Fig. 1-Figure 15 shows the dependency structure schematic diagram of a preferred embodiment of the present invention.
As shown in Figure 1-Figure 3, ratchet tool of the present invention comprises bar assembly 1, handle 2 and ratchet device 3.Handle 2 is connected with ratchet device 3, and bar assembly 1 extends to the inside of ratchet device 3 along the central shaft of ratchet device 3 from the front end of ratchet device 3 and is connected with ratchet device 3.In the present embodiment, bar assembly 1 preferably extends through the end of ratchet device 3 along the central shaft of ratchet device 3 from the front end of ratchet device 3 and is connected with ratchet device 3.
Wherein, bar assembly 1 comprises batch bar 11 and extension 12 further, in the present embodiment, criticizing bar 11 is designed to one-body molded with extension 12, extension 12 extends to the inside of ratchet device 3, and extension 12 passes the end of ratchet device 3 along the central shaft of ratchet device 3 from the front end of ratchet device 3 and is connected with ratchet device 3.Structure is as shown in Figure 6 more clearly for bar assembly 1, the end criticizing bar 11 has keyway 14, keyway 14 can be designed to single, also can design in pairs and be positioned at the corresponding both sides (as shown in Figure 7) of batch bar 11, keyway 14 and ratchet overlap 31 and match, overlap 31 in order to fixedly secure batch bar 11 with ratchet, make moment of torsion criticize bar 11 when transmitting and do not rock relative to ratchet cover 31.
Bar assembly 1 has an operate portions 4, with output torque away from one end of handle.Operate portions 4 specifically can be mounted in the screwdriver bit (as shown in Figure 1) of bar assembly 1 away from the various models on one end of handle, as first-class in flat blade screwdriver bit, plum blossom screwdriver bit, interior hex screwdriver; Operate portions 4 can also be the sleeve of various model, sleeve and bar assembly 1 can be designed to one-body molded (as shown in Figure 8), also can be connected (as shown in Figure 9) with bar assembly 1 by a connection piece 41, connector 41 can be used for installing the sleeve of various model.
The diameter criticizing bar 11 is greater than the diameter of extension 12, and the end of extension 12 has axial trough 15, devises the dead ring 13 (as back-up ring) matched with this axial trough 15 accordingly.When extension 12 passes the endoporus of pawl base 36, dead ring 13 with matching on axial trough 15 place card.Diameter due to batch bar 11 is greater than the diameter of extension 12, and in conjunction with axial trough 15 and dead ring 13 with the use of, pawl base 36 is firmly fixed on bar assembly, does not move axially.In addition, this connected mode of bar assembly 1 and ratchet device 3, bar assembly 1 and the endoporus of pawl base 36 is made to define a very long mating surface, add the contact area of bar assembly 1 and pawl base 36, this addresses the problem and to criticize bar 11 relatively pawl base 36 problem of rocking when using this ratchet tool, twist effective.
In the present embodiment, be passed to bar assembly 1 with the moment of torsion that any direction (clockwise or counterclockwise) inputs at handle 2, make bar assembly 1 with the direction of presetting one of (clockwise or counterclockwise) output torque.
As Figure 4-Figure 6, ratchet device 3 comprises and to be arranged on bar assembly 1 and by the bar assembly 1 centrally pawl base 36 that passes of axle, on pawl base 36, centrally axle bilateral symmetry arranges two swingable the first ratchet 351 and the second ratchets 352, and for controlling the commutation element 33 of two detent positions states.Commutation element 33 have the first stopper 331 and the second stopper 332, the outside that first stopper 331 corresponds to the second ratchet 352, first ratchet 351 and the second ratchet 352, first stopper 331 and the second stopper 332 corresponding to the first ratchet 351, second stopper 332 is provided with ratchet cover 31.
The inwall of ratchet cover 31 has the interior ratchet 311 of annular distribution, and ratchet cover 31 is enclosed within the first ratchet 351, second ratchet 352, and in it, ratchet 311 is engaged mutually with the tooth on the first ratchet 351, second ratchet 352.The outside of ratchet cover 31 is also provided with the positioner 32 be connected with commutation element 33, and positioner 32 also can be connected with commutation element 33 one.Positioner 32 is specially pivoted housing, is the outside that an annular casing is enclosed within ratchet cover 31.As shown in Figure 10 and Figure 11 for positioner 32 mediate time.
When rotation positioning device 32 time, commutation element 33 moves thereupon, and the first stopper 331 on commutation element 33 and the second stopper 332 also move thereupon.As shown in Figures 12 and 13, when rotating clockwise positioner 32, second stopper 332 extrudes the interior ratchet 311 that the second ratchet 352 departs from ratchet cover 31, first ratchet 351 continuation is meshed with the interior ratchet 311 that ratchet overlaps 31, now, turning handle can by the moment of torsion from handle by pawl base 36 clockwise, 31 the first ratchets 351 engaged are overlapped with ratchet, ratchet cover 31 passes to batch bar, counterclockwise turning handle then overlaps 31 the first ratchets 351 engaged and can be driven by pawl base 36 and overlap ratchet 311 in 31 from ratchet and slip over ratchet, not to batch bar transmitting torque, handle is made to turn round.As shown in FIG. 14 and 15, when rotating counterclockwise positioner 32, first stopper 331 extrudes the interior ratchet 311 that the first ratchet 351 departs from ratchet cover 31, second ratchet 352 continuation is meshed with the interior ratchet 311 that ratchet overlaps 31, now, counterclockwise turning handle can by the moment of torsion from handle by pawl base 36, 31 the second ratchets 352 engaged are overlapped with ratchet, ratchet cover 31 passes to batch bar, clockwise turning handle then overlaps 31 the second ratchets 352 engaged and 311 can be driven from the ratchet that ratchet overlaps 31 to slip over by pawl base with ratchet, not to batch bar transmitting torque, handle is made to turn round.No matter pivoted housing goes to any position in figure, all remains on by locating on this position.
Further, the first flexible member 37 making these two ratchets open being close to ratchet cover is supported with between first ratchet 351 and the second ratchet 352, the first stopper 331 on commutation element 33 is positioned at the outside of the first corresponding ratchet 351, and the second stopper 332 on commutation element 33 is positioned at the outside of the second corresponding ratchet 352.Ensure that the first ratchet 351, second ratchet 352 overlaps 31 with ratchet and engages thus.
In addition, the first ratchet 351 is connected on pawl base 36 by the first bearing pin 341, and the second ratchet 352 is connected on pawl base 36 by the second bearing pin 342.Ensure that the first ratchet 351, second ratchet 352 can swing flexibly thus, can also ensure that ratchet has the ability of enough transmitting torques simultaneously.
As shown in fig. 10-15, pivoted housing inwall has the first locating slot 324, second locating slot 325 and the 3rd locating slot 326, pawl base 36 is provided with location pellet 321, location pellet 321 is supported by the second flexible member 323 and is positioned at the first locating slot 324, in one in second locating slot 325 and the 3rd locating slot 326, thus realize the location of pivoted housing on handle, according to this structure, when pivoted housing be positioned at as shown in Figure 10 and Figure 11 state time, location pellet 321 is positioned at the second locating slot 325 on pivoted housing, now the first ratchet 351, second ratchet 352 is positioned at state as shown in figure 11.When pivoted housing be positioned at as shown in Figure 12 and Figure 13 state time, location pellet 321 is positioned at the 3rd locating slot 326 on pivoted housing, and now the first ratchet 351, second ratchet 352 is positioned at state as shown in figure 13.When pivoted housing be positioned at as shown in Figure 14 and Figure 15 state time, location pellet 321 is positioned at the first locating slot 324 on pivoted housing, and now the first ratchet 351, second ratchet 352 is positioned at state as shown in figure 15.
As shown in either of figures 10 or 11, pawl base 36 has groove 361, and commutation element 33 is positioned at groove 361, is close to firmware 322 and is connected (as screw) between pivoted housing with commutation element 33.Thus while realization drives commutation element 33 by pivoted housing, also can not move axially by being limited in by commutation element 33 in groove 361 constraint realized pivoted housing, namely forbidding that pivoted housing departs from operating position by securing member 322.
Turning power required during in order to reduce further to turn round, realize " orientation " function better, the present invention has done further improvement to the number of teeth of ratchet 311 in ratchet sleeve 31, and in the present embodiment, the number of teeth of ratchet 311 is more than 60, preferably >=72 (such as 72).
Simultaneously, in order to increase the ability of transmitting torque, invention increases the number of teeth that the first and second ratchets engage with ratchet sleeve 31, in the present embodiment, the number of teeth of the first and second ratchets is set to more than 3, preferably >=5 (such as 5), correspondingly, the number of teeth of the interior ratchet 311 of ratchet sleeve 31, meeting more than under the prerequisite of 60, is configured to match with the number of teeth of the first and second ratchets.
Embodiment two
The present embodiment and embodiment one similar, the main distinction is the structure of bar assembly.
In this embodiment, bar assembly has the first end away from handle and the second end near handle, and the pars intermedia between first end and the second end, and the radius of this pars intermedia is greater than the radius of the part extended to both sides by this pars intermedia.When the first end of bar assembly reaches the inside of ratchet device, put ratchet cover, because the radius of centre is large, so just can realize bar assembly in the axial direction fixing; Correspondingly, when bar assembly is extracted, when the second end changing bar assembly into reaches the inside of ratchet device, put ratchet cover, bar assembly in the axial direction fixing can be realized equally.
Wherein, the first end of bar assembly can be specifically an operate portions, as the screwdriver bit (as interior hex screwdriver bit, cross drape over one's shoulders first-class) etc. of the connector of sleeve, installing sleeve, various model, second end of bar assembly also can be specifically an operate portions, as the screwdriver bit (as interior hex screwdriver bit, cross drape over one's shoulders first-class) etc. of the connector of sleeve, installing sleeve, various model, wherein, preferably, the function that first end realizes and the function that realizes of the second end inconsistent, namely the first end of bar assembly and the second end have two kinds of different functions.When the first end of bar assembly is positioned at ratchet device, this ratchet tool has a kind of function, and use when bar assembly being extracted commutation, when namely the second end of bar assembly is positioned at ratchet device, this ratchet tool has another kind of function.This design of bar assembly, achieves the use of freely dismantling and commutate of bar assembly, and then makes a ratchet tool have two kinds of different functions.
Embodiment three
Fig. 1, Fig. 4, Figure 10-21 shows the dependency structure schematic diagram of another preferred embodiment of the present invention.
The present embodiment and embodiment one similar, the main distinction is the structure of bar assembly 1.
As shown in figure 16, ratchet tool comprises bar assembly 1, handle 2 and ratchet device 3.Handle 2 is connected with ratchet device 3, and bar assembly 1 extends to the inside of ratchet device 3 along the central shaft of ratchet device 3 from the front end of ratchet device 3 and is connected with ratchet device 3.In the present embodiment, bar assembly 1 preferably extends through the end of ratchet device 3 along the central shaft of ratchet device 3 from the front end of ratchet device 3 and is connected with ratchet device 3.
Wherein, bar assembly 1 comprises batch bar 11 and extension 12 further, in the present embodiment, criticize bar 11 and extension 12 independent design, extension 12 extends to the inside of ratchet device 3, and extension 12 passes the end of ratchet device 3 along the central shaft of ratchet device 3 from the front end of ratchet device 3 and is connected with ratchet device 3.Structure is as shown in Figures 18 and 19 more clearly for bar assembly 1, criticize bar 11 and there is a hexagonal axle head 111, hexagonal axle head 111 and ratchet overlap 31 and match, hexagonal axle head 111 is through ratchet cover 31, overlap 31 in order to fixedly secure batch bar 11 with ratchet, make moment of torsion criticize bar 11 when transmitting and do not rock relative to ratchet cover 31.
Batch bar 11 has an operate portions 4, with output torque away from one end of handle.Operate portions 4 specifically can be mounted in batch bar 11 screwdriver bit (as shown in figure 16) away from the various models on one end of handle, as first-class in flat blade screwdriver bit, plum blossom screwdriver bit, interior hex screwdriver; Operate portions 4 can also be the sleeve of various model, sleeve and bar assembly 1 can be designed to one-body molded (as shown in figure 20), also can be connected (as shown in figure 21) with bar assembly 1 by a connection piece 41, connector 41 can install the sleeve of various model.
The end of extension 12 has axial trough 15, devises the dead ring 13 (as back-up ring) matched with this axial trough 15 accordingly.When endoporus through pawl base 36 of extension 12, extension 12 and hexagonal axle head 111 are tightly affixed, and on axial trough 15 place card dead ring 13 with matching.Because hexagonal axle head 111 and ratchet overlaps 31 cooperatively interact, and in conjunction with axial trough 15 and dead ring 13 with the use of, pawl base 36 is firmly fixed on bar assembly, does not move axially.In addition, this shaft-penetrating type connected mode of bar assembly 1 and ratchet device 3, bar assembly 1 and the endoporus of pawl base 36 is made to define a very long mating surface, add the contact area of bar assembly 1 and pawl base 36, this addresses the problem and to criticize bar 11 relatively pawl base 36 problem of rocking when using this ratchet tool, twist effective.
In the present embodiment, be passed to bar assembly 1 with the moment of torsion that any direction (clockwise or counterclockwise) inputs at handle 2, make bar assembly 1 with the direction of presetting one of (clockwise or counterclockwise) output torque.
As shown in Fig. 4, Figure 18, ratchet device 3 comprises and to be arranged on bar assembly 1 and by the bar assembly 1 centrally pawl base 36 that passes of axle, on pawl base 36, centrally axle bilateral symmetry arranges two swingable the first ratchet 351 and the second ratchets 352, and for controlling the commutation element 33 of two detent positions states.Commutation element 33 have the first stopper 331 and the second stopper 332, the outside that first stopper 331 corresponds to the second ratchet 352, first ratchet 351 and the second ratchet 352, first stopper 331 and the second stopper 352 corresponding to the first ratchet 351, second stopper 332 is provided with ratchet cover 31.
The inwall of ratchet cover 31 has the interior ratchet 311 of annular distribution, and ratchet cover 31 is enclosed within the first ratchet 351, second ratchet 352, and in it, ratchet 311 is engaged mutually with the tooth on the first ratchet 351, second ratchet 352.The outside of ratchet cover 31 is also provided with the positioner 32 be connected with commutation element 33, and positioner 32 also can be connected with commutation element 33 one.Positioner 32 is specially pivoted housing, is the outside that an annular casing is enclosed within ratchet cover 31.When positioner 32 mediates, as shown in Figure 10 and Figure 11.
When rotation positioning device 32 time, commutation element 33 moves thereupon, and the first stopper 331 on commutation element 33 and the second stopper 332 also move thereupon.As shown in Figures 12 and 13, when rotating clockwise positioner 32, second stopper 332 extrudes the interior ratchet 311 that the second ratchet 352 departs from ratchet cover 31, first ratchet 351 continuation is meshed with the interior ratchet 311 that ratchet overlaps 31, now, turning handle can by the moment of torsion from handle by pawl base 36 clockwise, 31 the first ratchets 351 engaged are overlapped with ratchet, ratchet cover 31 passes to batch bar, counterclockwise turning handle then overlaps 31 the first ratchets 351 engaged and can be driven by pawl base 36 and overlap ratchet 311 in 31 from ratchet and slip over ratchet, not to batch bar transmitting torque, handle is made to turn round.As shown in FIG. 14 and 15, when rotating counterclockwise positioner 32, first stopper 331 extrudes the interior ratchet 311 that the first ratchet 351 departs from ratchet cover 31, second ratchet 352 continuation is meshed with the interior ratchet 311 that ratchet overlaps 31, now, counterclockwise turning handle can by the moment of torsion from handle by pawl base 36, 31 the second ratchets 352 engaged are overlapped with ratchet, ratchet cover 31 passes to batch bar, clockwise turning handle then overlaps 31 the second ratchets 352 engaged and 311 can be driven from the ratchet that ratchet overlaps 31 to slip over by pawl base with ratchet, not to batch bar transmitting torque, handle is made to turn round.No matter pivoted housing goes to any position in figure, all remains on by locating on this position.
Further, the first flexible member 37 making these two ratchets open being close to ratchet cover is supported with between first ratchet 351 and the second ratchet 352, the first stopper 331 on commutation element 33 is positioned at the outside of the first corresponding ratchet 351, and the second stopper 332 on commutation element 33 is positioned at the outside of the second corresponding ratchet 352.Ensure that the first ratchet 351, second ratchet 352 overlaps 31 with ratchet and engages thus.
In addition, the first ratchet 351 is connected on pawl base 36 by the first bearing pin 341, and the second ratchet 352 is connected on pawl base 36 by the second bearing pin 342.Ensure that the first ratchet 351, second ratchet 352 can swing flexibly thus, can also ensure that ratchet has the ability of enough transmitting torques simultaneously.
As shown in fig. 10-15, pivoted housing inwall has the first locating slot 324, second locating slot 325 and the 3rd locating slot 326, pawl base 36 is provided with location pellet 321, location pellet 321 is supported by the second flexible member 323 and is positioned at the first locating slot 324, in one in second locating slot 325 and the 3rd locating slot 326, thus realize the location of pivoted housing on handle, according to this structure, when pivoted housing be positioned at as shown in Figure 10 and Figure 11 state time, location pellet 321 is positioned at the second locating slot 325 on pivoted housing, now the first ratchet 351, second ratchet 352 is positioned at state as shown in figure 11.When pivoted housing be positioned at as shown in Figure 12 and Figure 13 state time, location pellet 321 is positioned at the 3rd locating slot 326 on pivoted housing, and now the first ratchet 351, second ratchet 352 is positioned at state as shown in figure 13.When pivoted housing be positioned at as shown in Figure 14 and Figure 15 state time, location pellet 321 is positioned at the first locating slot 324 on pivoted housing, and now the first ratchet 351, second ratchet 352 is positioned at state as shown in figure 15.
As shown in either of figures 10 or 11, pawl base 36 has groove 361, and commutation element 33 is positioned at groove 361, is close to firmware 322 and is connected (as screw) between pivoted housing with commutation element 33.Thus while realization drives commutation element 33 by pivoted housing, also can not move axially by being limited in by commutation element 33 in groove 361 constraint realized pivoted housing, namely forbidding that pivoted housing departs from operating position by securing member 322.
Turning power required during in order to reduce further to turn round, realize " orientation " function better, the present invention has done further improvement to the number of teeth of ratchet 311 in ratchet sleeve 31, and in the present embodiment, the number of teeth of ratchet 311 is more than 60, preferably >=72 (such as 72).
Simultaneously, in order to increase the ability of transmitting torque, invention increases the number of teeth that the first and second ratchets engage with ratchet sleeve 31, in the present embodiment, the number of teeth of the first and second ratchets is set to more than 3, preferably >=5 (such as 5), correspondingly, the number of teeth of the interior ratchet 311 of ratchet sleeve 31, meeting more than under the prerequisite of 60, is configured to match with the number of teeth of the first and second ratchets.
Embodiment four
Fig. 7, Figure 10-15 and Figure 22-25 shows the dependency structure schematic diagram of the another preferred embodiment of the present invention.
As can be seen from accompanying drawing, the present embodiment and embodiment one similar, the main distinction is the increase in lighting device.
The present embodiment adds lighting device on the basis of embodiment one, and the particular location of lighting device as shown in figure 23.Positioner 32 is specially pivoted housing, and be the outside that an annular casing is enclosed within ratchet cover 31, in the present embodiment, positioner 32 has an inner chamber 321, in order to install lighting device.As shown in FIG. 24 and 25, the power supply 7 that lighting device comprises circuit board 5 and installs on the board, when lighting device is fixed in the inner chamber 321 of positioner 32, transparency cover 6 covers and is fixed on positioner 32, achieves the function of illumination.
The use of the present embodiment lighting device achieves effective combination of ratchet screwdriver and lighting device, makes ratchet tool of the present invention not only have the function of driver, possesses illumination functions again simultaneously.
Embodiment five
The present embodiment and embodiment two, three similar, the main distinction is the increase in lighting device.This lighting device is consistent with the lighting device in embodiment four.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technical staff in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (20)
1. a ratchet tool, comprise bar assembly, handle, and ratchet device, wherein, described handle is connected with described ratchet device, and described bar assembly extends to the inside of described ratchet device along the central shaft of described ratchet device from the front end of described ratchet device and is connected with described ratchet device.
2. ratchet tool as claimed in claim 1, wherein, described bar assembly extends through the end of described ratchet device along the central shaft of described ratchet device from the front end of described ratchet device and is connected with described ratchet device.
3. ratchet tool as claimed in claim 1, wherein, described bar assembly is connected with described ratchet device removably.
4. ratchet tool as claimed in claim 3, described bar assembly has the first end away from described handle and the second end near described handle, and described first end or described second end can extend to the inside of described ratchet device along the central shaft of described ratchet device from the front end of described ratchet device and be connected with described ratchet device.
5. ratchet tool as claimed in claim 1, wherein, described bar assembly comprises batch bar and extension, described extension extends to the inside of described ratchet device, and described extension passes the end of described ratchet device along the central shaft of described ratchet device from the front end of described ratchet device and is connected with described ratchet device.
6. ratchet tool as claimed in claim 5, wherein, described batch of bar and described extension are designed to one-body molded.
7. ratchet tool as claimed in claim 5, wherein, described batch of bar and described extension independent design.
8. ratchet tool as claimed in claims 6 or 7, wherein, described ratchet device comprises pawl base, on described pawl base, centrally axle bilateral symmetry arranges two swingable the first ratchets and the second ratchet, with the commutation element for controlling described first and second detent positions states, described commutation element having two is separately positioned on outside the first ratchet and the second ratchet, and be respectively used to the first stopper and the second stopper that promote described first ratchet and the second ratchet, first and second ratchets and the first and second stopper outsides are provided with ratchet cover, the inwall of described ratchet cover has the interior ratchet of annular distribution, described ratchet cover is engaged mutually with the tooth on the first ratchet and the second ratchet.
9. ratchet tool as claimed in claim 6, wherein, described batch of bar has near one end of described handle and matches and the keyway overlapped in order to fixing described batch bar and described ratchet with described ratchet cover.
10. ratchet tool as claimed in claims 6 or 7, wherein, described extension has the axial trough merging and described extension is not moved axially relative to described ratchet device that to match with dead ring.
11. ratchet tools as claimed in claim 7, wherein, the described batch of bar has near one end of described handle and matches and the axle head overlapped in order to fixing described batch bar and described ratchet with described ratchet cover.
12. ratchet tools as claimed in claim 11, wherein, described axle head is hexagonal axle head.
13. ratchet tools as claimed in claim 8, wherein, the number of teeth of the described interior ratchet of described ratchet cover is more than 60.
14. ratchet tools as claimed in claim 13, wherein, the number of teeth of the described interior ratchet of described ratchet cover is 72.
15. ratchet tools as claimed in claim 8, wherein, the number of teeth of the described tooth on described first ratchet is more than 3, and the number of teeth of the described tooth on described second ratchet is more than 3.
16. ratchet tools as claimed in claim 15, wherein, the number of teeth of the described tooth on described first ratchet is 5, and the number of teeth of the described tooth on described second ratchet is 5.
17. ratchet tools as claimed in claim 8, wherein, the outside of described ratchet cover is also provided with the positioner be connected with described commutation element.
18. ratchet tools as claimed in claim 17, wherein, described positioner is the outside that annular casing is enclosed within described ratchet cover.
19. ratchet tools as claimed in claim 17, wherein, described ratchet tool also comprises lighting device, and described positioner comprises an inner chamber, and described lighting device is arranged in described inner chamber.
20. ratchet tools as claimed in claim 19, wherein, described lighting device comprises circuit board and is arranged on the power supply on described circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263506.1A CN105328622B (en) | 2014-06-13 | 2014-06-13 | Ratchet tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263506.1A CN105328622B (en) | 2014-06-13 | 2014-06-13 | Ratchet tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105328622A true CN105328622A (en) | 2016-02-17 |
| CN105328622B CN105328622B (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410263506.1A Expired - Fee Related CN105328622B (en) | 2014-06-13 | 2014-06-13 | Ratchet tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105328622B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018129709A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州巨星工具有限公司 | Ratchet screwdriver |
| CN108297017A (en) * | 2017-01-13 | 2018-07-20 | 杭州巨星工具有限公司 | A kind of ratchet screw driver |
| WO2021175253A1 (en) * | 2020-03-03 | 2021-09-10 | 杭州巨星科技股份有限公司 | Manual tool capable of achieving bidirectional output of torque |
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| US5687820A (en) * | 1996-03-29 | 1997-11-18 | Lin; Ching-Chou | Reversible ratchet mechanism |
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| US20060048610A1 (en) * | 2004-07-23 | 2006-03-09 | Bobby Hu | Reversible high-torque screwdriver |
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| CN204019432U (en) * | 2014-06-13 | 2014-12-17 | 杭州巨星工具有限公司 | Ratchet tool |
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|---|---|---|---|---|
| CN2112481U (en) * | 1992-02-02 | 1992-08-12 | 卿俊地 | Screw driver |
| US5687820A (en) * | 1996-03-29 | 1997-11-18 | Lin; Ching-Chou | Reversible ratchet mechanism |
| US5791619A (en) * | 1996-11-01 | 1998-08-11 | Phd, Inc. | Anti-torque reaction arm |
| US6070503A (en) * | 1998-09-22 | 2000-06-06 | Shiao; Hsuan-Sen | High torsion ratcheting driver handle |
| US6082226A (en) * | 1999-06-21 | 2000-07-04 | Lin; Jack | Ratchet tool having a ratchet direction positioning device |
| US20060048610A1 (en) * | 2004-07-23 | 2006-03-09 | Bobby Hu | Reversible high-torque screwdriver |
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| CN204019432U (en) * | 2014-06-13 | 2014-12-17 | 杭州巨星工具有限公司 | Ratchet tool |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018129709A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州巨星工具有限公司 | Ratchet screwdriver |
| CN108297017A (en) * | 2017-01-13 | 2018-07-20 | 杭州巨星工具有限公司 | A kind of ratchet screw driver |
| CN108297017B (en) * | 2017-01-13 | 2024-08-23 | 杭州巨星工具有限公司 | Ratchet screwdriver |
| WO2021175253A1 (en) * | 2020-03-03 | 2021-09-10 | 杭州巨星科技股份有限公司 | Manual tool capable of achieving bidirectional output of torque |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105328622B (en) | 2022-03-04 |
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