CN201198265Y - Caster system for small-sized instrument - Google Patents
Caster system for small-sized instrument Download PDFInfo
- Publication number
- CN201198265Y CN201198265Y CNU2008200004854U CN200820000485U CN201198265Y CN 201198265 Y CN201198265 Y CN 201198265Y CN U2008200004854 U CNU2008200004854 U CN U2008200004854U CN 200820000485 U CN200820000485 U CN 200820000485U CN 201198265 Y CN201198265 Y CN 201198265Y
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- tooth
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- piece
- brake
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Abstract
The utility model relates to a truckle system used on a small apparatus which belongs to the field of machine and belongs to a truckle used on a small apparatus, in particular to a truckle used on a medical apparatus. The utility model includes a vertical shaft, a bearing, a bracket, a hub with a tooth on the surface, a gear-shift cam, a cam protection sleeve, a pull chip, a pull block, a pull rod, a directional brake block, a brake gear block, an upper brake plate, a lower brake plate, a fixed block and a spring. The gear-shift cam, the pull chip and the pull block fixed on the pull chip are coated in the cam protection sleeve; the pull block is fixed on the upper end of the pull rod; the vertical shaft, the spacer bush of the vertical shaft and the bearing are connected with the pull rod according to a sequence from up to down; the bearing is embedded with the cylinder of the bracket; the bottom part of the panel of the bracket is fixedly matched with the fixed block; the directional brake block is fixed on the fixed block and is respectively engaged with the hub and the brake gear block; the upper brake plate and the lower brake plate are fixed with the fixed block and are clamped and contacted with the brake gear block; the truckle used on a medical apparatus has the beneficial effects of easy manufacture, low cost, convenient operation, and the like.
Description
Technical field:
The utility model belongs to mechanical field, is specifically related to a kind of caster wheel on the small appliance that is used for, and relates in particular to a kind of caster wheel on the medical equipment that is used for.
Background technology:
In the technical field of medical operation bed, castor all is installed on the underframe of medical operation bed, this castor is necessary fixation when operating, and makes smooth and easy the carrying out of operation with this; At present, it is varied to be applied to medical operation bed caster wheel, the patent application of this respect is also arranged simultaneously, as on September 13rd, 2005 with application number be 2,005 2 0118753.9, name is called " being provided with spacing spring, parallel set screw, installation cover caster wheel ", on July 25th, 2005 with application number be 2,005 2 0114755.0, name is called " brake facing of medical bed castor ", on July 15th, 2005 with application number be 2,005 3 0139787.1, name is called " castor " ... or the like; Although in the technical field of castor, once did many-sided improvement, but for castor, because the integral structure of its product and shape are also little, in the minimum space of such product global shape, need by many various parts organic connection with combine, advance and satisfy simultaneously, retreat, turn, stop, promote, descend, variable block ... wait various functions, also to accomplish the attractive in appearance of product simultaneously, generous, use flexibly effectively, be convenient to processing, maintenance for ease of maintenaince, selection is convenient and cost is low ... etc., thus, this is that needs are in practical application and examination process, update and perfect long-term work; In existing product and patent application, do not solve above-mentioned variety of issue is also real, still exist operation owe nimble, firmly big when using, fixation procedure is owed steadily, owe firm after fixing, especially still exist: brake facing occur with the form of lever construction and not only take up room big and effect reliable and stable inadequately, support and support overcoat be the version of one be unfavorable for selection, assembling and be short of elegant in appearance ... etc.The utility model is exactly on the deficiency of fully and in earnest investigating, understand, analyze, sum up above-mentioned prior art, defective and drawback basis, for deficiency, defective and the drawback that makes its existence is solved, and special topic is succeeded in developing.
The utility model content:
At going out the caster wheel present situation in the market, the application has proposed a kind of later-model castor system.
The utility model discloses a kind of small appliance castor system, it comprises that there is the wheel hub of tooth on vertical shaft, bearing, support and surface, and wherein said castor system also comprises variable block cam, cam sheath, pulling-on piece, pulling block, pull bar, directed brake shoes, brake tooth piece, goes up braking vane, braking vane, fixed block and spring down;
Described variable block cam comprises cam needle roller independently and is arranged on two discs and polygon centre hole on the cam, wherein narrow and periphery is provided with one section fan-shaped cambered surface and irregular circular arc to periphery than inner headed face, described irregular circular arc comprises one section long radius cambered surface and minor radius cambered surface, when the shift cam is center of circle rotation with the polygon centre hole under external force, the irregular circular arc enterprising line slip of cam needle roller on periphery is blocked when running into the vertical section of fan-shaped cambered surface;
Described cam sheath is two semicircular cylinder structures, these two semicircular cylinders are fixed as tubular structure by the pin sheet, in semicircular cylinder, be provided with the cavity that matches with shift cam inner headed face, the cavity top is provided with the setting cavity, the narrow footpath of this cavity is the needle roller diameter, wide footpath is greater than the needle roller diameter, and the inner headed face of variable block cam embeds in this cavity and also can rotate in cavity during assembling, and the cam needle roller embeds in the cavity and can slide up and down in cavity;
Described pulling-on piece is a rectangular sheet, it is provided with circular hole, this center, circular hole upper surface is provided with convex arc, pulling-on piece and described pulling block fix, this rectangle pulling-on piece is suspended on the cam needle roller by convex arc, when cam rotates under external force, the cam needle roller can slide up and down in cam sheath cavity along with the difference of position on the circular arc on the cam periphery, thereby driven the up-and-down movement of pulling-on piece, again owing to be fixed together between pulling-on piece and the pulling block time, so the up-and-down movement of pulling-on piece has driven the up-and-down movement of pulling block;
Described pulling block is for falling the structure of convex, the wide end surface that is somebody's turn to do the structure of falling the convex is flat dentalation, convex surface on the periphery of this wide end surface and variable block cam contacts, the narrow end surface of this reversed convex type structure and pull bar upper surface fix, described pulling block is fixed on the pulling-on piece, can give downward pressure of pulling block when the convex surface on the periphery of variable block cam contacts with wide end surface, this pressure is given pull bar via the pulling block transmission;
Described vertical shaft is the axle shape structure of hollow, described pull bar is an axle shape structure, described vertical shaft, vertical shaft spacer and bearing match to slide up and down ways of connecting alive with pull bar with order from top to bottom, described spring is arranged on the upper surface has divergent shape teeth lower surface that the brake tooth piece top of draw-in groove is arranged, and this brake tooth piece is fixed on pull bar bottom by pin;
Described support comprises the cylindrical structure and the panel construction of weld together, and described bearing passes this cylindrical structure and connects to rotate the connection mode of living closely, and described panel construction is provided with axle hole;
Described phasing brake shoes comprises half arm, the tooth piece, four parts of tooth plate and pad, described tooth piece is positioned at the middle part of half arm, the bottom surface of this tooth piece is provided with and the tooth mating teeth face of dispersing of the tooth piece upper surface of braking, described pad contacts with the smooth surface of tooth piece bottom surface, its surface of an end that described tooth plate is positioned at half arm is provided with the teeth that match with tooth on the wheel hub, the other end of half arm rotates to live with described fixed block and is connected, wherein when the tooth on the wheel hub is arranged on the wheel hub inside face on the described phasing brake shoes teeth of tooth plate be arranged on the upper surface of tooth plate, the teeth of tooth plate are arranged on the lower surface of tooth plate on the described phasing brake shoes when the tooth on the wheel hub is arranged on hub outside surface;
Described fixed block matches with the bottom surface of stent cover plate structure, and this fixed block and panel construction bottom surface can be fixed in a fixed manner by welding or screw riveted joint or other;
It is described that to go up braking vane and following braking vane be platy structure and captive joint with fixed block, end on last braking vane and following braking vane is provided with the card lug structure, this card draw-in groove prominent and on the brake tooth piece matches, and last braking vane and following braking vane can be fixed by the mode of welding or screw is riveted or other can fixed connection.
Above-mentioned castor system, described castor system also comprises the support overcoat, this support overcoat support overcoat is presented for the left side and is held oblique right side cylindric, that be connected with this cylinder, lower end level with both hands and be the tabular structure of circular arc, be provided with on the arc plate intrados on buckle bar, this support overcoat right side in forward mode in the cylinder in this support overcoat left side and be provided with the buckle bar in the parallel and interlaced modes of two row, engaging can match between this support overcoat and the support.
Principle of work of the present utility model and working process are as follows:
When the variable block cam was center of circle rotation with the polygon centre hole under external force, the irregular circular arc enterprising line slip of cam needle roller on periphery can produce situation in following 3:
1, needle roller contacts with the great circle cambered surface:
When needle roller contacts with the great circle cambered surface, this moment, pulling-on piece moved up under the drive that moves on the needle roller, because between pulling-on piece and the pulling block, between pulling block and the pull bar, all captive joint between pull bar and the brake tooth piece, therefore the last shipper pole of pulling-on piece moved above-mentioned miscellaneous part on move, the tooth that moves the tooth that makes its upper surface and directed brake shoes tooth piece bottom surface on the brake tooth piece meshes and upwards pressure for one of tooth piece, under the effect of this pressure, it is that fulcrum rotates and causes the tooth plate of directed brake shoes to be compressed into to wheel hub that directed brake shoes rotates the work point of connection with half arm and fixed block, tooth on the tooth plate and the engagement of the tooth on the wheel hub at this moment, castor stops operating and rolls;
2, needle roller contacts with the roundlet cambered surface:
When needle roller contacts with the roundlet cambered surface, this moment, needle roller dropped to the normal position from an original high position, pulling-on piece, pulling block, pull bar, brake tooth piece all return to the normal position at this moment, the tooth of brake tooth piece upper surface separate with the tooth of directed brake shoes tooth piece bottom surface and also since the pressure on the tooth piece disappear, the tooth block reset, this moment, the tooth on the tooth plate separated the castor normal operation with tooth on the wheel hub;
3, the pulling block upper end contacts with the great circle cambered surface:
When the pulling block upper end contacts with the great circle cambered surface, the variable block cam is given downward pressure of pulling block, because between pulling-on piece and the pulling block, between pulling block and the pull bar, all captive joint between pull bar and the brake tooth piece, this downward pressure finally makes pull bar move down, pull bar moves down and drives moving down of the brake tooth piece captive joint with pull bar, this moment by last braking vane, down the card on the braking vane prominent with the tooth piece lower surface of braking on the cooperating of draw-in groove, vertical shaft is stopped operating.
The utlity model has following beneficial effect:
1, because the utility model is provided with the orientation brake tooth piece of brand-new structure, thus obtained scientific and reasonable for structure, small and exquisite, take that the integral product space is little, the beneficial effect of connection and compact in design.
2,, thereby obtained to be active in one's movements securing beneficial effect reliable, can castor is safe, steady, balanced, firm because the utility model is provided with the orientation brake tooth piece of brand-new structure.
3, structure that will originally fixing brake tooth piece in the utility model is separated from support, forms an independently fixed-block-architecture (FBA), independence of fixed block exist make brake tooth piece fixing and and wheel hub between the adjustment of tooth pitch become conveniently.
4, because support and support overcoat in the utility model are two discrete parts, thereby existing backwardness, loaded down with trivial details, and production status such as selection inconvenience have been obtained to change, make and weld again after the original multi-faceted punching press and be short of the manufacturing process of precision, change into the present high working process of simple casting, injection moulding and degree of precision, also make beneficial effects such as assembly process methodization, standardization, normalisation simultaneously.
5, the utility model product low, easy to operate beneficial effect that is easy to be made.
Description of drawings:
Fig. 1 is the utility model one specific embodiment assembly drowing.
The figure number explanation:
1, variable block cam, 11, the cam needle roller, 12, the cam periphery, 13, the cam inner headed face, 2, the cam sheath, 21, cavity, 22, cavity, 3, pulling-on piece, 4, pulling block, 5, pull bar, 6, vertical shaft, 7, the vertical shaft spacer, 8, bearing, 9, support, 91, backing holding cylinder, 92, the support panel, 10, directed brake shoes, 101, tooth plate, 102, half arm, 103, the tooth piece, 104, pad, 16, brake tooth piece, 17, fixed block, 18, go up braking vane, 14, braking vane down, 15, the support overcoat.
The specific embodiment:
A kind of small appliance castor system as shown in Figure 1, it comprises that there is the wheel hub of tooth on vertical shaft 6, bearing 8, support 9 and surface, and wherein said castor system also comprises variable block cam 1, cam sheath 2, pulling-on piece 3, pulling block 4, pull bar 5, directed brake shoes 10, brake tooth piece 16, goes up braking vane 18, braking vane 14, fixed block 17, spring and support overcoat 15 down;
Described variable block cam 1 comprises cam needle roller independently 11 and is arranged on two discs and polygon centre hole on the cam, wherein narrow and periphery is provided with one section fan-shaped cambered surface and irregular circular arc to periphery 12 than inner headed face 13, described irregular circular arc comprises one section long radius cambered surface and minor radius cambered surface, when the variable block cam is center of circle rotation with the polygon centre hole under external force, the irregular circular arc enterprising line slip of cam needle roller 11 on periphery 12 is blocked when running into the vertical section of fan-shaped cambered surface;
Described cam sheath 2 is two semicircular cylinder structures, these two semicircular cylinders are fixed by the pin sheet, in semicircular cylinder, be provided with the cavity 21 that matches with shift cam inner headed face, the cavity top is provided with erects cavity 22, the narrow footpath of this cavity 22 is the needle roller diameter, wide footpath is greater than the needle roller diameter, and the inner headed face 13 of shift cam 1 embeds in this cavity 21 and also can rotate in cavity 21 during assembling, and cam needle roller 11 embeds in the cavitys 22 and can slide up and down in cavity 22;
Described pulling-on piece 3 is a rectangular sheet, it is provided with circular hole, this center, circular hole upper surface is provided with convex arc, pulling-on piece 3 fixes with described pulling block 4, this rectangle pulling-on piece 3 is suspended on the cam needle roller 11 by convex arc, when variable block cam 1 rotates under external force, cam needle roller 11 can slide up and down in cam sheath cavity 22 along with the difference of position on the circular arc on the cam periphery 12, thereby driven the up-and-down movement of pulling-on piece 3, again owing to be fixed together between pulling-on piece 3 and the pulling block 4 time, so the up-and-down movement of pulling-on piece 3 has driven the up-and-down movement of pulling block 4;
Described pulling block 4 is for falling the structure of convex, the wide end surface that is somebody's turn to do the structure of falling the convex is flat dentalation, convex surface on the periphery 12 of this wide end surface and variable block cam 1 contacts, the narrow end surface of this reversed convex type structure and pull bar 5 upper surfaces fix, pull bar 5 is fixed on the pulling-on piece 3, can give 4 one downward pressure of pulling block when the convex surface on the periphery 12 of variable block cam 1 contacts with wide end surface, this pressure is given pull bar 5 via pulling block 4 transmissions;
Described vertical shaft 6 is the axle shape structure of hollow, described pull bar 5 is an axle shape structure, described vertical shaft 6, vertical shaft spacer 7 and bearing 8 match to slide up and down ways of connecting alive with pull bar with order from top to bottom, described spring is arranged on the upper surface has divergent shape teeth lower surface that brake tooth piece 16 tops of draw-in groove are arranged, and this brake tooth piece 16 is fixed on pull bar 5 bottom by pin;
Described support 9 comprises the backing holding cylinder 91 and the support panel 92 of weld together, described bearing 8 passes this backing holding cylinder 91 and connects to rotate the connection mode of living closely, described support panel 92 is provided with axle hole, and wheel shaft passes axle hole has the wheel hub of tooth to be fixed on the support panel on the surface;
Described phasing brake shoes 10 comprises half arm 102, tooth piece 103 and 101 3 parts of tooth plate, described tooth piece 103 is positioned at the middle part of half arm 102, the bottom surface of this tooth piece 103 be provided with and tooth piece 16 upper surfaces of braking disperse the tooth mating teeth, its lower surface of an end that described tooth plate 101 is positioned at half arm 102 is provided with the teeth that match with the tooth of hub outside surface, and the other end of half arm 102 rotates to live with described fixed block 17 and is connected;
Described fixed block 17 matches with the bottom surface of support panel 92, the underrun screw retention of this fixed block 17 and support panel 92;
The described braking vane 18 of going up is a platy structure with following braking vane 14, end on last braking vane 18 and following braking vane 14 is provided with the card lug structure, this card draw-in groove prominent and on the brake tooth piece 16 matches, last braking vane 18 and following braking vane 14 by screw retention on fixed block 17;
Described support overcoat 15, this support overcoat is presented for the left side and is held oblique right side cylindric, that be connected with this cylinder, lower end level with both hands and be the tabular structure of circular arc, be provided with on the arc plate intrados on buckle bar, this support overcoat right side in forward mode in the cylinder in this support overcoat left side and be provided with the buckle bar, engage between this support overcoat 15 and the support 9 in the parallel and interlaced modes of two row.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any formal and substantial restriction, all those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when can utilizing the above technology contents that discloses, and a little change of making, modify the equivalent variations with differentiation, be equivalent embodiment of the present utility model; Simultaneously, all foundations essence technology of the present utility model all still belongs in the scope of the technical solution of the utility model change, modification and the differentiation etc. of any equivalent variations that above embodiment did.
Claims (4)
1. castor system, it comprises that there is the wheel hub of tooth on vertical shaft, bearing, support and surface, is characterized in that: described castor system also comprises variable block cam, cam sheath, pulling-on piece, pulling block, pull bar, directed brake shoes, brake tooth piece, goes up braking vane, braking vane, fixed block and spring down;
Described variable block cam comprises independently cam needle roller and inside and outside two discs and the polygon centre hole that are arranged on the cam, and wherein periphery is narrower than inner headed face, and this periphery is provided with one section fan-shaped cambered surface and irregular circular arc;
Described cam sheath is two semicircular cylinder structures, and these two semicircular cylinders are fixed by the pin sheet, are provided with the cavity that matches with variable block cam inner headed face in semicircular cylinder, and the cavity top is provided with the cavity that can allow needle roller slide up and down;
Described pulling-on piece is a rectangular sheet, and it is provided with a circular hole with convex arc, and the convex arc on this circular hole contacts with the cam needle roller;
Described pulling block is for falling the structure of convex shape, and wide end surface that should the structure of falling the convex shape is flat dentalation, and this wide end surface contacts with the periphery convex surface of variable block cam, and the narrow end surface of this reversed convex type structure and pull bar upper surface fix, and described pulling block is fixed on the pulling-on piece;
Described vertical shaft is the axle shape structure of hollow, described pull bar is an axle shape structure, described vertical shaft, vertical shaft spacer and bearing match to slide up and down ways of connecting alive with pull bar with order from top to bottom, described spring is arranged on the upper surface and is provided with the brake tooth piece top that divergent shape teeth lower surface is provided with draw-in groove, and this brake tooth piece is fixed on pull bar bottom by pin;
Described support comprises the cylindrical structure and the panel construction of weld together, and described bearing passes this cylinder-like structure and connects to rotate the connection mode of living closely, and described panel construction is provided with axle hole;
Described phasing brake shoes is divided into half arm, tooth piece, tooth plate and four parts of pad, described tooth piece is positioned at the middle part of half arm, the bottom surface of this tooth piece is provided with and the tooth mating teeth face of dispersing of the tooth piece upper surface of braking, the smooth surface of tooth piece bottom surface contacts with pad, its surface of an end that described tooth plate is positioned at half arm is provided with the teeth that match with tooth on the wheel hub, and the other end of half arm rotates to live with described fixed block and is connected;
Described fixed block matches fixing with the bottom surface of stent cover plate structure;
Described to go up braking vane and following braking vane be platy structure and captive joint with fixed block, is provided with the card lug structure at the one end, and the draw-in groove that this card is dashed forward and braked on the tooth piece matches.
2. castor according to claim 1 system, it is characterized in that: described fixed block is fastened on the bottom surface of stent cover plate structure by screw.
3. castor according to claim 1 system, it is characterized in that: the teeth of tooth plate are arranged on the lower surface of tooth plate on the described phasing brake shoes, and the tooth on the described wheel hub is arranged on hub outside surface.
4. according to the arbitrary described castor of a claim system among the claim 1-3, it is characterized in that: described castor system also comprises the support overcoat, and engaging matches between this support overcoat and the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200004854U CN201198265Y (en) | 2008-01-15 | 2008-01-15 | Caster system for small-sized instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200004854U CN201198265Y (en) | 2008-01-15 | 2008-01-15 | Caster system for small-sized instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198265Y true CN201198265Y (en) | 2009-02-25 |
Family
ID=40449423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200004854U Expired - Fee Related CN201198265Y (en) | 2008-01-15 | 2008-01-15 | Caster system for small-sized instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198265Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009017461U1 (en) | 2009-12-17 | 2011-04-28 | Steinco Paul Vom Stein Gmbh | Brake and lock sensor and actuator for castors |
| CN101904791B (en) * | 2009-06-03 | 2012-02-01 | 安钛医疗设备股份有限公司 | Brake mechanism of operating table foundation |
| CN103496296A (en) * | 2013-10-11 | 2014-01-08 | 宁波禾采医疗器械有限公司 | Medical trundle of sickbed cart |
| CN106827956A (en) * | 2017-02-17 | 2017-06-13 | 浙江利百加箱包配件有限公司 | A kind of roller of strap brake function |
| CN110588243A (en) * | 2019-10-15 | 2019-12-20 | 无锡市中冠物流设备有限公司 | Combined central control wheel structure for medical treatment |
-
2008
- 2008-01-15 CN CNU2008200004854U patent/CN201198265Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101904791B (en) * | 2009-06-03 | 2012-02-01 | 安钛医疗设备股份有限公司 | Brake mechanism of operating table foundation |
| DE202009017461U1 (en) | 2009-12-17 | 2011-04-28 | Steinco Paul Vom Stein Gmbh | Brake and lock sensor and actuator for castors |
| DE102009058919A1 (en) | 2009-12-17 | 2011-06-22 | STEINCO Paul vom Stein GmbH, 42929 | Roller e.g. cam roller, decelerating and guiding device for use in e.g. work shop, has brake sensor whose member acts on locking and/or release mechanism in form of switching mechanism that acts on actuator using power transferring unit |
| CN103496296A (en) * | 2013-10-11 | 2014-01-08 | 宁波禾采医疗器械有限公司 | Medical trundle of sickbed cart |
| CN106827956A (en) * | 2017-02-17 | 2017-06-13 | 浙江利百加箱包配件有限公司 | A kind of roller of strap brake function |
| CN110588243A (en) * | 2019-10-15 | 2019-12-20 | 无锡市中冠物流设备有限公司 | Combined central control wheel structure for medical treatment |
| CN110588243B (en) * | 2019-10-15 | 2024-04-02 | 无锡市中冠医疗设备有限公司 | Medical combined central control wheel structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20100220 |