TWM567168U - Adapter of power tool - Google Patents

Abstract

An adapter for a power tool can be disposed on a power tool having a coaxial output drive shaft, such as a grinder, and a grinding disc, and includes an eccentric seat, and one side of the eccentric seat is provided with a The input shaft is disposed on the other side, and the output shaft is eccentrically disposed with the output shaft, and can be respectively connected to the power tool and the grinding disc, thereby enabling the power tool to be directly connected during normal times. The grinding disc drives the grinding disc to perform cutting or rough grinding operation by using a coaxial output, and if necessary, the adapter is connected in series with the power tool and the grinding disc to change the power tool to multi-axis eccentricity The rotating method drives the grinding disc to perform a fine grinding operation, thereby achieving the purpose of being convenient for carrying and operation by the user.

Description

Power tool adapter

This creation is related to an adapter, and in particular to an adapter that is disposed on a drive shaft of a power tool.

With the rapid development of modern industry, in order to improve work efficiency, we have developed a variety of power tools, such as: electric drill, electric hammer, sand mill, marble machine, electric circular saw, cutting machine, grinder, engraving machine ...etc. are common and commonly used types. Each power tool can be used for different purposes. In addition to helping people complete their work quickly and accurately, it also brings us a lot of convenience.

However, in the above-mentioned power tool, the grinder is a coaxial rotary output grinder suitable for cutting or rough grinding, and the polisher is a multi-axis eccentric rotating grinder suitable for fine grinding operations, so it is used. When it is limited by the way of operation, the user often needs to carry the engraving machine and the polishing machine at the same time, which is not only portable, and is not convenient for the user to operate. Therefore, after the above-mentioned shortcomings are observed, the creator of the case thinks that How to make the coaxial rotating grinder have the function of multi-axis eccentric rotation, it is necessary, and the creation of this creation.

The purpose of the present invention is to provide an adapter for a power tool that can be disposed between a drive shaft of a power tool and a grinding disc to cause the power tool to drive the grinding disc in a multi-axis eccentric rotation manner. Fine grinding operation.

In order to achieve the above object, the power tool adapter provided by the present invention can be disposed between a power tool and a grinding disc, wherein the power tool has a coaxial output drive shaft, and the grinding disc The utility model has a locking portion, and the adapter comprises: an eccentric seat having a first connecting portion on one side and a first connecting portion on the other side, and the first connecting portion The first set of joints is eccentrically disposed, and the peripheral side of the eccentric seat extends outwardly with at least one weight; and an input shaft has a second connecting end at one end thereof corresponding to the first connecting portion The second connecting portion is connected to the first connecting portion, so that the input shaft can be connected to the eccentric seat, and the other end of the input shaft is provided with a connecting hole for connecting with the driving shaft of the power tool. There is also an output shaft, one end of which is corresponding to the first set of joints, and a second set of joints, the second set of joints is rotatably connected to the first set of joints, so that the output shaft can be connected to The eccentric seat rotates relative to the eccentric seat while the output shaft The other end is provided with a coupling portion, is connected to the lock for the portion of the grinding disc.

The adapter of the power tool of the present invention can be connected between the power tool and the grinding disc, and when the power tool starts to rotate, the converter can be converted to multi-axis eccentricity through the conversion of the adapter. Rotating in a manner such that the power tool can be directly connected to the grinding disc in a normal manner to drive the grinding disc for cutting or rough grinding using a coaxial output, and if necessary, with the power tool and the grinding The adapter is connected in series between the discs, so that the power tool is changed in a multi-axis eccentric rotation manner, and the grinding disc is driven to perform a fine grinding operation, thereby achieving the purpose of facilitating carrying and operation by the user.

Referring to Figures 1 to 3, there is disclosed an adapter 100 for a power tool, the adapter 100 of the power tool comprising:

An eccentric seat 10 is provided with a first connecting portion 11 on one side and a first connecting portion 12 on the other side, and the first connecting portion 11 and the first connecting portion 12 are eccentrically disposed. In this embodiment, the first connecting portion 11 has a first protrusion 111, and a first through hole 112 is disposed at a center of a top surface of the first protrusion 111, and the first connecting portion is The 12 series is a groove, and the groove is provided with at least one bearing 13. The center of the bearing 13 is formed with a shaft hole 131. The central axis A of the first through hole 112 and the central axis B of the shaft hole 131 are The eccentricity of the eccentric seat 10 is further outwardly extended by the at least one weight 14 . In the embodiment, the eccentric base 10 has a pair of weights 14 opposite to the peripheral.

An input shaft 20 is provided with a second connecting portion 21 at one end thereof, and the second connecting portion 21 is connected to the first connecting portion 11 so that the input shaft 20 can be connected to the eccentric seat. 10, in the embodiment, the second connecting portion 21 has a second protrusion 211, and a first shaft 212 is protruded from a center of the top surface of the second protrusion 211. The first shaft The first bump 111 and the second bump 211 are formed in a circular shape of equal diameter, so that the first bump 111 and the second bump 211 can overlap. A cylindrical shape is formed, and the other end of the input shaft 20 is provided with a connecting hole 22.

A positioning ring 30 is disposed around the periphery of the first bump 111 and the second bump 211. In the embodiment, the positioning ring 30 is a bearing.

An output shaft 40 is provided with a second connecting portion 41 at one end thereof, and the second connecting portion 41 is rotatably connected to the first connecting portion 12 to make the output shaft The eccentric base 10 is coupled to the eccentric base 10 and rotates relative to the eccentric base 10. In this embodiment, the second set of connecting portions 41 is a rotating shaft, and the rotating shaft is rotatably disposed through the shaft hole of the bearing 13. 131. At the same time, the other end of the output shaft 40 is provided with a joint portion 42.

In order to further understand the characteristics of this creation, the use of technical means and the expected results, we will describe the use of this creation, and believe that we can have a deeper and more specific understanding of this creation, as follows:

Continuing to refer to FIG. 4 and FIG. 5, the use of the present invention is intended to be used in conjunction with a schematic cross-sectional view. The adapter 100 of the power tool can be disposed on a power tool 200 having a coaxial output drive shaft 201. For example, between the grinder and the grinding disc 300, the driving shaft 201 of the power tool 200 is assembled to the connecting hole 22 of the input shaft 20, and the locking portion 301 of the grinding disc 300 is assembled. In the embodiment, the locking portion 301 is a threaded post, and the joint portion 42 is a screw hole. Of course, the same principle is applied, and the locking portion 301 is applied. The coupling portion 42 can be reversely disposed, that is, the locking portion 301 can be a screw hole, and the coupling portion 42 is a threaded post, so that when the power tool 200 starts to rotate, the driving shaft 201 will The rotation of the input shaft 20 is synchronously rotated, so that the input shaft 20 rotates the eccentric seat 10, and the eccentric seat 10 re-drives the output shaft 40 to revolve around the input shaft 20, so that the power tool 200 can drive the power tool 200. The grinding disc 300 operates in a multi-axis eccentric rotation manner. In order to perform a fine grinding operation, the power tool 200 can be directly connected to the grinding disc 300 in a normal manner to drive the grinding disc 300 for cutting or rough grinding using a coaxial output, and if necessary, The power tool 200 and the grinding disc 300 are connected in series with the adapter 100, so that the power tool 200 can be rotated in a multi-axis eccentric manner to drive the grinding disc 300 to perform a fine grinding operation, thereby facilitating carrying and operation by the user. The purpose.

It is worth mentioning that the input shaft 20 is connected to the eccentric block 10 through the second connecting portion 21 connected to the first connecting portion 11 , that is, the input shaft 20 and the eccentric block 10 are separable. The design is such that a plurality of the connecting holes 22 can be prepared in advance as input shafts 20 of different aperture sizes for replacement of power tools of different specifications.

It is worth mentioning that the first bump 111 and the second bump 211 form a circle of equal diameter, so that the first bump 111 and the second bump 211 can overlap to form a column shape, so When the positioning ring 30 is sleeved on the periphery of the first bump 111 and the second bump 211, the first bump 111 and the second bump 211 are correctly overlapped to ensure the first A shaft 212 and the first through hole 112 are at the same axis.

Please refer to FIG. 6 and FIG. 7 at the same time, which are exploded views of another preferred embodiment of the present invention and a schematic cross-sectional view showing the difference between the adapter 100 of the power tool and the preferred embodiment. The invention further comprises a cover 50 which is provided with a plurality of holes 51 corresponding to the positioning ring 30, such as one of the class holes shown in the embodiment, whereby the cover 50 can be sleeved and fixed The positioning ring 30 is placed on the periphery of the adapter 100 to prevent the adapter 100 from injuring the user during use.

Hereby, the characteristics of this creation and its achievable expected effects are stated as follows:

The adapter 100 of the power tool of the present invention can be connected between the power tool 200 and the grinding disc 300, and when the power tool 200 starts to rotate, the converter 100 can be converted to drive the grinding. The disc 300 is operated in a multi-axis eccentric rotation manner, whereby the power tool 200 can be directly connected to the grinding disc 300 in a normal manner to drive the grinding disc 300 for cutting or rough grinding operation by using a coaxial output. If necessary, the adapter 100 is connected in series with the power tool 200 and the grinding disc 300, so that the power tool 200 is rotated by multi-axis eccentricity, and the grinding disc 300 is driven to perform fine grinding operation, thereby facilitating use. Carrying and operating purposes.

In summary, this creation has its excellent progress and practicality in similar products. At the same time, it has investigated the technical information about such structures at home and abroad. The same structure has not been found in the literature. This creation has already possessed new types of patent requirements, and applied for it according to law.

However, the above-mentioned ones are only one of the preferred embodiments of the present invention, and the equivalent structural changes in the application of the present specification and the scope of the patent application are intended to be included in the scope of the present patent.

100‧‧‧Adapter
10‧‧‧Eccentric seat
11‧‧‧ First connection
111‧‧‧First bump
112‧‧‧First perforation
12‧‧‧The first set of joints
13‧‧‧ Bearing
131‧‧‧Axis hole
14‧‧‧weights
20‧‧‧ input shaft
21‧‧‧Second connection
211‧‧‧second bump
212‧‧‧Second shaft
22‧‧‧Connection hole
30‧‧‧ positioning ring
40‧‧‧ Output shaft
41‧‧‧Second group of joints
42‧‧‧Combination Department
50‧‧‧ Cover
51‧‧‧Setting holes
A‧‧‧Axis
B‧‧‧Axis
200‧‧‧Power Tools
201‧‧‧ drive shaft
300‧‧‧ grinding disc
301‧‧‧Locking

Figure 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is an exploded view of a preferred embodiment of the present invention. Figure 3 is a cross-sectional view of a preferred embodiment of the present invention. Figure 4 is a schematic illustration of the use of a preferred embodiment of the present invention. Figure 5 is a schematic cross-sectional view showing the use of a preferred embodiment of the present invention. Figure 6 is an exploded view of another preferred embodiment of the present invention. Figure 7 is a schematic cross-sectional view showing the use of another preferred embodiment of the present invention.

Claims (9)

An adapter for a power tool, which is disposed between a power tool and a grinding disc, wherein the power tool has a coaxial output drive shaft, and the grinding disc has a locking portion, and the grinding disc has a locking portion The adapter includes: an eccentric seat having a first connecting portion on one side and a first connecting portion on the other side, and the first connecting portion and the first connecting portion are The eccentricity is disposed, and the peripheral side of the eccentric seat further extends at least one weight; the input shaft has a second connecting portion at one end thereof, and the second connecting portion is connected to the first connecting portion a first connecting portion, the input shaft is connectable to the eccentric seat, and the other end of the input shaft is provided with a connecting hole for connecting with a driving shaft of the power tool; an output shaft having one end corresponding thereto The first set of joints is provided with a second set of joints, and the second set of joints is rotatably connected to the first set of joints, so that the output shaft can be connected to the eccentric seat and rotate relative to the eccentric seat. At the same time, the other end of the output shaft is provided with a joint portion for The locking portion is connected to the grinding disc. The adaptor of the power tool of claim 1, wherein the first connecting portion has a first protrusion, the first protrusion is provided with a first through hole, and the second connection is The second shaft has a second protrusion protruding from the first shaft. The first shaft is disposed through the first hole. The adaptor of the power tool of claim 2, further comprising a positioning ring disposed around the periphery of the first bump and the second bump. The adaptor of the power tool of claim 3, wherein the first bump and the second bump form a circle of equal diameter, such that the first bump and the second bump They can be overlapped to form a cylindrical shape. The adapter for a power tool according to claim 3, wherein the positioning ring is a bearing. The adapter for a power tool according to claim 1, wherein the first set of links has a recess, the recess is provided with at least one bearing, and the center of the bearing is formed with a shaft hole The second set of joints is a rotating shaft, and the rotating shaft is rotatably threaded through the shaft hole of the bearing. The adapter for a power tool according to claim 1, wherein the locking portion of the grinding disc is a threaded post, and the joint of the output shaft is a screw hole. The adapter for a power tool according to claim 3, further comprising a cover for covering the periphery of the adapter. The adaptor of the power tool according to the invention of claim 8, wherein the outer cover is provided with a set of holes corresponding to the positioning ring, so that the outer cover can be sleeved and fixed to the positioning ring.