CN213106578U

CN213106578U - Switching device of hand tool

Info

Publication number: CN213106578U
Application number: CN202021279476.0U
Authority: CN
Inventors: 陈怡夙
Original assignee: Infar Industrial Co Ltd
Current assignee: Infar Industrial Co Ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-05-04
Anticipated expiration: 2030-07-02

Abstract

The utility model relates to a switching device of hand tool. The middle of the switching device of the hand tool is used for a hand tool to be sleeved, one end of the switching device of the hand tool is used for being installed on a first workpiece, and the other end, opposite to the switching device of the hand tool, of the switching device of the hand tool is provided with a groove used for installing a second workpiece. Therefore, the types and the number of the workpieces which can be butted by the switching device of the hand tool can be enlarged, and the application range of the hand tool is further enlarged.

Description

Switching device of hand tool

Technical Field

The present invention relates to a switching device, and more particularly to a switching device for a hand tool.

Background

The ratchet wrench is usually used with a socket tool to perform assembling and disassembling operations. Specifically, a ratchet wheel is usually pivoted on a wrench body of the ratchet wrench, and a through-hole is formed in the center of the ratchet wheel. The inner periphery of the sleeve hole is convexly provided with a plurality of embedding aids for embedding a plurality of embedding grooves on the outer periphery of one end of the sleeve tool. Since the socket hole specification of the ratchet wrench is fixed, if a socket tool is used to mount or dismount a workpiece (such as a screwdriver or a hexagon wrench) with different dimensions or a socket tool is directly used to mount or dismount a part with different dimensions, the socket tool with the corresponding specification needs to be selected.

However, not every socket tool has an end for engaging the ratchet wrench in the shape of a polygonal column, making it difficult to use such a socket tool for a ratchet wrench. Accordingly, an adapter for engaging a socket tool with a ratchet wrench has been developed, as shown in "improved adapter" of taiwan patent No. M251687.

Most of the prior art adapters are mounted to the ratchet wrench at one end and to the socket tool at the opposite end. In other words, the conventional adapter can only mount one socket tool, and cannot mount another socket tool or mount or dismount a workpiece after the socket tool is mounted. Therefore, when a user needs to disassemble and assemble parts with different specifications and sizes, the sleeve tool needs to be frequently replaced, thereby causing inconvenience in use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can be cup jointed by the spanner and can install the switching device of a plurality of work pieces simultaneously.

To achieve the above object, the present invention provides a hand tool adaptor device adapted to detachably couple to a hand tool, a first workpiece and a second workpiece. The adapter device comprises a first joint part, a second joint part and a supporting part. The first joint part comprises a first end and a second end opposite to the first end, and the first end of the first joint part is used for being detachably connected with the first workpiece. The second joint part is detachably sleeved on the hand tool. The second joint part comprises a first end and a second end opposite to the first end, and the first end of the second joint part is connected with the second end of the first joint part. The second joint part is provided with a first groove at the second end. The support portion is connected with the second end of the second joint portion. The supporting portion includes a through hole, and the through hole and the first groove of the second joint portion are located on an axis of the adapter and communicated to form an accommodating space. The accommodating space is used for the second workpiece to insert. And on the axis, the projection area of the first joint part is smaller than that of the second joint part, and the projection area of the second joint part is smaller than that of the support part.

In other embodiments, the first engaging portion further includes a first outer surface. The first joint part is provided with a second groove in a concave mode from the first outer surface, and the second groove comprises a first groove surface. The first engaging portion further includes a first elastic member and a first engaging member for detachably engaging with the first workpiece. One end of the first elastic piece is connected with the first groove surface, and the other end of the first elastic piece opposite to the first elastic piece is connected with the first clamping piece. The first clamping piece protrudes out of the first outer surface.

In other embodiments, the second engaging portion further includes a second outer surface. The second joint part is provided with a third groove in a concave mode from the second outer surface, and the third groove comprises a second groove surface. The second engaging portion further includes a second elastic member and a second engaging member for detachably engaging with the hand tool. One end of the second elastic piece is connected with the second groove surface, and the other end of the second elastic piece is connected with the second clamping piece. The second clamping piece protrudes out of the second outer surface.

In other embodiments, the support portion further comprises a flange, and the flange is configured to abut against a hand tool when the adaptor is coupled to the hand tool.

In other embodiments, a surface of the flange is angled more than 90 degrees from the second outer surface of the second engagement portion.

In other embodiments, the end edge of the first end of the first engaging portion includes a chamfer.

In other embodiments, the end edge of the first end of the second engaging portion includes a chamfer.

In other embodiments, the first engagement portion is at least partially in the shape of a square post.

In other embodiments, the first engagement portion is at least partially in the shape of a hexagonal cylinder.

In other embodiments, the support portion is at least partially cylindrical in shape.

Therefore, the present invention provides an adapter device, which is provided with a first engaging portion for detachably engaging with a first workpiece, and a second engaging portion and a supporting portion for detachably engaging with a second workpiece, so as to expand the types and number of the workpieces that the adapter device can be engaged with, and further expand the application range of the hand tool. Moreover, if the side surface of at least one of the first joint part and the second joint part is provided with the clamping piece, when the first joint part is butted with the first workpiece or the second joint part is sleeved by a hand tool, the fastening effect is enhanced, and the first joint part is not easy to fall off. In addition, the projection area of the supporting part is larger than that of the second joint part, so that when the switching device is connected to the hand tool, the supporting part can be abutted against the periphery of the sleeve hole of the hand tool to limit the mutual displacement of the switching device and the hand tool on the axis of the switching device, and the operation of a user is facilitated.

Drawings

Fig. 1 is a schematic view illustrating a state of an adapter device according to an embodiment of the present invention in use;

fig. 2 is a schematic perspective view of an adapter device according to an embodiment of the present invention;

fig. 3 is a bottom view of the adapter device according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view taken along line 4-4 of fig. 3.

Description of reference numerals:

10. a switching device; 11. a first engaging portion; 111. a first end of the first engagement portion; 112. a second end of the first engagement portion; 113. an end surface of a first end of the first engaging portion; 114. a first outer surface of the first engagement portion; 115. a second groove of the first engaging portion; 116. a first groove surface of the second groove; 117. a chamfer of the first engagement portion; 12. a second engaging portion; 12H, a first groove of the second engagement portion; 121. a first end of the second engagement portion; 122. a second end of the second engagement portion; 124. a second outer surface of the second engagement portion; 125. a third groove of the second engaging portion; 126. a second groove surface of the third groove; 127. a chamfer of the second engagement portion; 13. a support portion; 13H, perforation of the supporting part; 131. a flange of the support portion; 132. a surface of the support; 133. a bearing surface of the support part; 134. an inclined surface of the support portion; 14. a first engaging member; 141. a first elastic member; 15. a second engaging member; 151. a second elastic member; 20. a hand tool; 21. a main body; 22. sleeving holes of hand tools; 23. the side surface of the sleeving hole; 24. a limiting groove for sleeving the hole; 30. a first workpiece; 31. a first end of a first workpiece; 311. an end face of a first end of a first workpiece; 32. a second end of the first workpiece; 32H, a groove of the first workpiece; 321. an end face of a second end of the first workpiece; 322. a side of the groove of the first workpiece; 40. a second workpiece; 41. a first end of a second workpiece; 42. a second end of a second workpiece; p, the axis of the switching device; u, the accommodating space of the switching device; l1, L2: and (4) direction.

Detailed Description

Referring to fig. 1 to 4, an adapter 10 according to an embodiment of the present invention is adapted to be detachably coupled to a hand tool 20, a first workpiece 30 and a second workpiece 40. Specifically, the two opposite sides of the adaptor device 10 are used to detachably carry or connect the first workpiece 30 and the second workpiece 40, respectively, and the middle section of the adaptor device 10 is used for the hand tool 20 to socket.

The present invention is not limited to the applicable types of the hand tool 20, the first workpiece 30 and the second workpiece 40, but for convenience of description, the hand tool 20 is a ratchet wrench, the first workpiece 30 is a nut sleeve and the second workpiece 40 is a cross screwdriver head. The hand tool 20 includes a main body 21, and a coupling hole 22 is formed on the main body 21. The receiving hole 22 is configured to receive the middle section of the adapter 10. The end surface 311 of the first end 31 of the first workpiece 30 is recessed with a groove, which can be used to engage a component, such as a nut. And the end face 321 of the second end 32 of the first workpiece 30 is recessed with another groove 32H. The first end 41 of the second workpiece 40 is in the shape of a polygonal cylinder, such as a hexagonal cylinder, while the second end 42 of the second workpiece 40 is configured in the shape of a cross-shaped indentation for abutment against a screw.

The adapter device 10 includes a first joint portion 11, a second joint portion 12 and a supporting portion 13. The first joint 11 is detachably connected to the first workpiece 30, the second joint 12 is detachably engaged with the hand tool 20, and the second joint 12 and the supporting portion 13 together detachably carry the second workpiece 40. Details of the adapter device 10 will be described below as an example.

The first engaging portion 11 includes a first end 111 and a second end 112 opposite to the first end 111. The first end 111 of the first engaging portion 11 is adapted to be detachably inserted into the recess 32H of the second end 32 of the first workpiece 30. At least a portion of the first engaging portion 11 may be shaped and sized to match the shape and size of the groove 32H of the first workpiece 30, for example, so that when the first engaging portion 11 is inserted into the groove 32H of the first workpiece 30, the two are securely connected and are not easily separated. In addition, the end surface 113 of the first end 111 of the first engaging portion 11 may be, for example, a flat surface. The edge of the end surface 113 may also be provided with a chamfer 117, for example, so that the first engagement portion 11 follows the chamfer 117 into the groove 32H during insertion into the groove 32H of the first workpiece 30. In this embodiment, at least a portion of the first engaging portion 11 may also be shaped as a polygonal column, such as a square column. Each angle of the polygonal column may be, for example, an arc angle.

The second engaging portion 12 includes a first end 121 and a second end 122 opposite to the first end 121. The first end 121 of the second joint part 12 is connected to the second end 112 of the first joint part 11. The second engaging portion 12 has a first groove 12H at the second end 122. The geometric center of the first groove 12H may be located on an axis P of the adapter 10, for example. The first end 121 of the second engaging portion 12 near the joint with the first engaging portion 11 may be provided with a chamfer 127, for example, so that the second engaging portion 12 can enter the receiving hole 22 of the hand tool 20 along the chamfer 127 during the process of receiving the hand tool 20 in the second engaging portion 12. Further, the projected area of the first joint 11 on the axis P may be smaller than the projected area of the second joint 12, for example. In this embodiment, at least a portion of the second engaging portion 12 may also be shaped as a polygonal cylinder, such as a hexagonal cylinder.

The support portion 13 is connected to the second end 122 of the second engagement portion 12. The supporting portion 13 includes a through hole 13H, and the geometric center of the through hole 13H is located on the axis P of the adapter 10. The through hole 13H can communicate with the first groove 12H of the second joint portion 12 to form an accommodating space U. The accommodating space U is used for inserting the first end 41 of the second workpiece 40. An inner surface of the through hole 13H near a receiving surface 133 of the supporting portion 13 may be, for example, an inclined surface 134, i.e., an included angle between the inclined surface 134 and the receiving surface 133 may be, for example, greater than 90 degrees, so that when the second workpiece 40 is inserted into the accommodating space U, the first end 41 of the second workpiece 40 may enter the through hole 13H along the inclined surface 134 and then be inserted into the accommodating space U. In addition, the projected area of the second joint portion 12 on the axis P may be smaller than the projected area of the supporting portion 13. Further, the supporting portion 13 may further include a flange 131, and the flange 131 may surround the through hole 13H. Therefore, when the adaptor device 10 is combined with the hand tool 20, the flange 131 can be pressed against the hand tool 20 to limit the mutual displacement of the adaptor device 10 and the hand tool 20 on the axis P of the adaptor device 10. Therefore, the adaptor device 10 is only partially inserted through the receiving hole 22 of the hand tool 20, and the entire adaptor device 10 is not inserted through the receiving hole 22 of the hand tool 20. In the present embodiment, at least a portion of the supporting portion 13 may be shaped as a polygonal column or a cylinder.

The adapter device 10 of the present invention has a plurality of states of use, as shown in fig. 1. One of the states of use is, for example, to utilize the adaptor device 10 of the present invention to allow the hand tool 20 to be used with nuts of various sizes as the first workpiece 30. Specifically, the user can insert the adaptor device 10 into the receiving hole 22 of the hand tool 20 from the first engaging part 11 along the direction L1, and then insert the second engaging part 12 into the receiving hole 22 of the hand tool 20 to receive the second engaging part 12 by the hand tool 20. Since the support portion 13 of the adaptor 10 is provided with the flange 131, the relative movement between the adaptor 10 and the hand tool 20 is limited by the flange 131. Eventually, the flange 131 will abut against the periphery of the receiving hole 22 of the hand tool 20, so that the adaptor 10 cannot move relative to the hand tool 20 in the direction L1 any more. Then, at least part of the first engaging portion 11 of the transit device 10 is inserted into the groove 32H of the first workpiece 30 from the end face 321 of the groove 32H of the first workpiece 30 in the direction L1. At this time, the user can indirectly manipulate the first workpiece 30 by directly manipulating the hand tool 20.

Another usage status can be, for example, to utilize the adaptor device 10 of the present invention, so that the hand tool 20 can be applied to various types of screwdriver bits, such as cross screwdriver bits, straight screwdriver bits, etc. Specifically, after the hand tool 20 is sleeved on the second joint portion 12 of the adaptor 10 in the above-mentioned manner, the user can further insert the first end 41 of the screwdriver bit as the second workpiece 40 into the accommodating space U of the adaptor 10 from the receiving surface 133 of the supporting portion 13 along the direction L1. When the first end 41 of the second workpiece 40 abuts against the bottom surface of the first groove 12H of the accommodating space U, the second workpiece 40 cannot enter the accommodating space U of the adapter 10 along the direction L1 any more. At this time, the user can indirectly manipulate the second workpiece 40 by directly manipulating the hand tool 20.

In addition, in order to enhance the fastening degree between the first engaging portion 11 of the adapter device 10 and the first workpiece 30, in this embodiment or other embodiments, a second groove 115 may be disposed on a first outer surface 114 of the first engaging portion 11, for example, and the second groove 115 is recessed from the first outer surface 114 and includes a first groove surface 116. The first engaging portion 11 further includes a first elastic member 141 and a first engaging member 14 for detachably engaging with the first workpiece 30. One end of the first elastic member 141 is connected to the first groove surface 116, and the other end of the first elastic member 141 is connected to the first engaging member 14. The first engaging member 14 protrudes from the first outer surface 114. When the first engaging portion 11 of the adapter device 10 is inserted into the groove 32H of the first workpiece 30, the first engaging member 14 is pushed by the side surface 322 of the groove 32H and moves in the direction L2 perpendicular to the axis P. Since the first elastic element 141 provides a restoring force to the first engaging element 14, the first engaging element 14 can be held against the side 322 of the groove 32H of the first workpiece 30, so that the first engaging portion 11 of the adapter device 10 is fastened to the first workpiece 30.

Similarly, in this embodiment or other embodiments, a third groove 125 may be disposed on a second outer surface 124 of the second engaging portion 12, and the third groove 125 is recessed from the second outer surface 124 and includes a second groove surface 126. The second engaging portion 12 further comprises a second elastic element 151 and a second engaging element 15 for detachably engaging with the hand tool 20. One end of the second elastic member 151 is connected to the second groove surface 126, and the other end of the second elastic member 151 is connected to the second engaging member 15. The second engaging member 15 protrudes from the second outer surface 124. When the hand tool 20 is engaged with the second engaging portion 12 of the adaptor 10, the second engaging member 15 is pushed by the side surface 23 of the engaging hole 22 of the hand tool 20 and moves in the direction L2. Since the second elastic element 151 provides a restoring force to the second engaging element 15, the second engaging element 15 can be held against the side 23 of the receiving hole 22 of the hand tool 20, so as to fasten the second engaging portion 12 of the adaptor 10 to the hand tool 20.

In addition, in this embodiment or other embodiments, a limiting groove 24 may be further recessed in the engaging hole 22 of the hand tool 20, for example, on a side surface 23 thereof. The retainer groove 24 is located between the openings on opposite sides of the socket hole 22. The limiting groove 24 may be formed in a circle, for example, along the circumferential direction of the receiving hole 22, or may be formed in a narrow shape, for example, along the circumferential direction of the receiving hole 22, but not formed in a circle, or may be formed in a point-like recess, for example. Therefore, when the hand tool 20 is sleeved on the second engaging portion 12 of the adaptor 10, the second engaging member 15 of the second engaging portion 12 is engaged with the limiting groove 24, so that the adaptor 10 is not only limited in displacement in the direction of the axis P, but also limited in displacement in the circumferential direction of the sleeved hole 22, and the second engaging portion 12 of the adaptor 10 is further fastened on the hand tool 20.

Although the above embodiments have been described by taking different types of first and second workpieces as examples, the present invention is not limited thereto. In other embodiments of the present invention, the first workpiece and the second workpiece may be workpieces of the same type but different sizes.

In addition, although the number of the engaging structures (i.e. the first engaging member 14 and the first elastic member 141) on the first engaging portion 11 is illustrated as 1, the present invention is not limited thereto. In other embodiments, the number and components of the engaging structure may be designed according to actual requirements. For example, the number of the first engaging members 14 on the first engaging portion 11 may be more than 2, and each first engaging member 14 may be matched with one or more first elastic members 141.

Similarly, although the number of the engaging structures (i.e. the second engaging member 15 and the second elastic member 151) on the second engaging portion 12 is illustrated as 1, the present invention is not limited thereto. In other embodiments, the number and components of the engaging structure may be designed according to actual requirements. For example, the number of the second engaging members 15 on the second engaging portion 12 may be more than 2, and each second engaging member 15 may be matched with one or more second elastic members 151.

To sum up, the utility model provides a switching device of hand tool can be used for detachable connection or bear two work pieces respectively at its relative both ends, borrow this can enlarge the work piece type and the quantity that switching device of hand tool can dock, and then enlarges the applicable scope of hand tool, saves the time of changing the work piece, promotes the efficiency of tearing open, adorning the operation. If the side surface of the switching device of the hand tool is provided with at least one clamping piece, the switching device of the hand tool can strengthen the fastening effect and is not easy to fall off when being butted with a workpiece or sleeved by the hand tool. In addition, when the adapter of the hand tool is sleeved on the hand tool, the adapter of the hand tool can be abutted against the periphery of the sleeved hole of the hand tool by the supporting part, so that the mutual displacement of the adapter of the hand tool and the axis of the adapter of the hand tool is limited, and the operation of a user is facilitated.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above embodiments, but not to limit the present invention, any person of ordinary skill in the art can make various changes or modifications within the scope of the technical solution of the present invention without departing from the scope of the present invention.

Claims

1. A hand tool adaptor apparatus adapted to detachably couple to a hand tool, a first workpiece and a second workpiece, the adaptor apparatus comprising:

a first joint including a first end and a second end opposite to the first end, the first end of the first joint being configured to detachably connect to the first workpiece;

a second joint part, including a first end and a second end opposite to the first end, wherein the first end of the second joint part is connected with the second end of the first joint part, the second joint part is provided with a first groove at the second end, and the second joint part is detachably sleeved on the hand tool; and

a supporting portion connected to the second end of the second joint portion, the supporting portion including a through hole, the through hole and the first groove of the second joint portion being located on an axis of the adapter and being communicated with each other to form an accommodating space, the accommodating space being used for the second workpiece to be inserted into, wherein on the axis, a projected area of the first joint portion is smaller than a projected area of the second joint portion.

2. The hand tool adaptor device of claim 1, wherein said first engaging portion further comprises a first outer surface, said first engaging portion has a second recess recessed from said first outer surface, said second recess comprises a first groove surface, said first engaging portion further comprises a first resilient member and a first engaging member for detachably engaging with said first workpiece, one end of said first resilient member is connected to said first groove surface, the opposite end of said first resilient member is connected to said first engaging member, and said first engaging member protrudes from said first outer surface.

3. The hand tool adaptor device of claim 1, wherein the second engaging portion further comprises a second outer surface, the second engaging portion has a third recess recessed from the second outer surface, the third recess comprises a second groove surface, the second engaging portion further comprises a second resilient member and a second engaging member for detachably engaging with the hand tool, one end of the second resilient member is connected to the second groove surface, the opposite end of the second resilient member is connected to the second engaging member, and the second engaging member protrudes from the second outer surface.

4. The adapter of the hand tool of claim 3, wherein the support portion further comprises a flange for abutting against the hand tool when the adapter is coupled to the hand tool.

5. The hand tool adaptor of claim 4 wherein a surface of said flange is angled more than 90 degrees from said second outer surface of said second engagement portion.

6. The hand tool adaptor device of claim 1, wherein the end edge of said first end of said first engagement portion includes a chamfer.

7. The hand tool adaptor device of claim 1, wherein the end edge of said first end of said second engagement portion includes a chamfer.

8. The hand tool adaptor of claim 1 wherein said first engagement portion is at least partially in the shape of a square post.

9. The hand tool adapter according to claim 1, wherein said first engagement portion is at least partially in the shape of a hexagonal cylinder.

10. The hand tool adaptor of claim 1 wherein said support portion is at least partially cylindrical in shape.