Transmission wrench

Abstract

The utility model relates to the technical field of tools, in particular to a transmission wrench which comprises a body, an input gear, a transmission module and an output gear, the input gear, the transmission module and the output gear are all arranged on the body, the input gear drives the output gear to rotate through the transmission module, the input gear is fixedly connected with an extension rod, and the extension rod is used for driving the input gear to rotate. Compared with the prior art, the special extension rod is arranged and used by a user for transmission, and the fixing structure is arranged on the extension rod to position the extension rod, so that the extension rod can be driven by the user to rotate more conveniently and efficiently, and the use convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool technical field especially is a transmission wrench. BACKGROUND

[0002] The wrench is a commonly used tool, and its purpose is to make people more easily turn screws by increasing the length of the force arm. The structure of the wrench has also been optimized, for example, the Chinese utility model patent with the patent number CN201721732942.4 discloses a gear transmission multifunctional wrench, which realizes the advantage of operation in a small space by setting multiple gear transmission cooperation.

[0003] However, this scheme still has the following problems: it does not provide a specific scheme for using in a small space, which causes users to need to equip corresponding structures by themselves when using, thus bringing inconvenience. SUMMARY

[0004] The utility model provides a transmission wrench for the prior art problem, can be more convenient for user uses.

[0005] In order to solve the above technical problem, the utility model adopts the following technical scheme:

[0006] The utility model provides a transmission wrench, including body, input gear, transmission module and output gear who set up in body, input gear drives output gear rotation through transmission module, input gear is fixedly connected with extension rod, and extension rod is used for driving input gear rotation.

[0007] Further, it further includes a threaded part, the input gear and the extension rod are fixed through the threaded part.

[0008] Further, the threaded part is a screw or a bolt.

[0009] Further, the extension rod is provided with a fixing structure for positioning the body, and the fixing structure includes a handle ring, which is used for positioning with the structure of the outside world.

[0010] Further, the handle ring is provided with a position adjusting ring, which is used for adjusting the relative position of the handle and the extension rod.

[0011] Further, the position adjusting ring is provided with a locking structure inside, which is used for locking the position adjusting ring to prevent the position adjusting ring from sliding relative to the extension rod.

[0012] Further, the extension rod is provided with a control hole at one end away from the body, and the control hole is non-circular in shape, which is used for assembling the driving device of the outside world.

[0013] Further, the transmission module comprises a first gear, a second gear and a third gear which are sequentially engaged, the first gear, the second gear and the third gear are rotationally arranged in the body, the first gear is engaged with the input gear, and the third gear is engaged with the output gear.

[0014] Further, the output gear is provided with a first output hole which is non-circular, the first output hole is detachably provided with an output member, the output member is provided with a second output hole which is non-circular and has a shape different from that of the first output hole.

[0015] The utility model discloses the beneficial effect of: the utility model is equipped with the special extension rod for letting the user drive to use, and the fixed structure is set up on the extension rod to realize the positioning of extension rod, make extension rod can more conveniently, efficiently let the user drive and rotate, improve the convenience of using. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the schematic view of the utility model.

[0017] Figure 2 It is the schematic view of the body of the utility model.

[0018] Reference signs: 1 - body, 2 - input gear, 3 - transmission module, 4 - output gear, 5 - extension rod, 6 - fixed structure, 21 - drive hole, 31 - first gear, 32 - second gear, 33 - third gear, 41 - first output hole, 42 - output member, 43 - second output hole, 53 - threaded part, 54 - control hole, 61 - handle ring, 62 - position adjusting ring. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of those skilled in the art, the utility model is further explained in combination with examples and drawings below, and the content mentioned in the implementation manner is not a limitation of the utility model. The utility model is described in detail below in combination with the drawings.

[0020] As Figure 1 And Figure 2 The utility model provides a transmission wrench, including body 1, input gear 2, transmission module 3 and output gear 4 that are all arranged in body 1, input gear 2 drives output gear 4 to rotate through transmission module 3, and the input gear 2 is fixedly connected with extension rod 5, and the extension rod 5 is used to drive input gear 2 to rotate.

[0021] Specifically, the extension rod 5 is fixed with the input gear 2, which ensures that the extension rod 5 is always connected with the input gear 2, so that the user only needs to rotate the extension rod 5 to make the input gear 2 rotate, and the reliable driving of the output gear 4 is realized through the transmission module 3, thereby realizing the convenience of driving of the utility model.

[0022] In the embodiment, the input gear 2 and the extension rod 51 are fixed through the threaded part 53.

[0023] In actual use, the threaded part 53 is a screw or a bolt, that is, the extension rod 5 is actually limited through the threaded part 53 to avoid separation from the input gear 2. That is, the user can replace the extension rod 5 with a suitable length for cooperation, so that the application of the utility model is more flexible and more suitable for different situations.

[0024] In the embodiment, the extension rod 5 is provided with a fixing structure 6 for positioning the body 1, and the fixing structure 6 includes a handle ring 61 for cooperating with the structure of the outside world to position.

[0025] That is, the handle ring 61 is a ring structure, which is used to assemble and fix with the structure of the outside world, so as to ensure that the extension rod 5 remains perpendicular to the body 1, so that the user can more reliably and effectively drive the input gear 2 to rotate when rotating the extension rod 5.

[0026] Specifically, the handle ring 61 is provided with a position adjusting ring 62 for adjusting the relative position of the handle and the extension rod 5.

[0027] In actual use, the inside of the position adjusting ring 62 is provided with a locking structure for locking the position adjusting ring 62 to prevent the position adjusting ring 62 from sliding relative to the extension rod 5. The locking structure can be a conventional structure, such as an air inflation structure, a damping structure, etc. The purpose is to adjust the relative position of the handle ring 61 and the extension rod 5 when needed, that is, to unlock the locking structure, that is, to drive the position adjusting ring 62 to slide relative to the extension rod 5 to drive the handle ring 61 to move back and forth along the extension rod 5, and then control the locking structure to lock again after adjusting the position.

[0028] The outer diameter of the position adjusting ring 62 is preferably greater than that of the handle ring 61, so that the position adjusting ring 62 can be limited, that is, when the position adjusting ring 62 is placed on the top of some cylindrical structure for positioning, the handle ring 61 can be prevented from continuing to move along the cylindrical structure, and the effect of cooperation and positioning is also achieved.

[0029] In the embodiment, the extension rod 5 is provided with a control hole 54 at the end away from the body 1, and the control hole 54 is non-circular in shape, and the control hole 54 is used to assemble the driving device of the outside world. The control hole 54 is beneficial to the user to add a suitable screwdriver, electric screwdriver, etc. driving device to drive the extension rod 5 to rotate, so as to ensure that the application of the utility model is more convenient.

[0030] In the embodiment, the transmission module 3 comprises a first gear 31, a second gear 32 and a third gear 33 which are sequentially engaged, the first gear 31, the second gear 32 and the third gear 33 are rotationally arranged in the body 1, the first gear 31 is engaged with the input gear 2, and the third gear 33 is engaged with the output gear 4.

[0031] In the embodiment, the output gear 4 is provided with a first output hole 41 which is non-circular, and the output gear 4 is detachably provided with an output member 42, the output member 42 is provided with a second output hole 43 which is non-circular and has a shape different from that of the first output hole 41.

[0032] That is, the output gear 4 is mounted in the body 1, so when the shape of the first output hole 41 is different from that of a component to be screwed, the output member 42 can be provided to convert, so that the versatility of the utility model is better, and a plurality of output members 42 only need to be provided instead of a plurality of the utility model, so that the effect of flexible use can be achieved.

[0033] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as above in the preferred embodiment, it is not intended to limit the utility model. Any skilled person in the art can make some changes or modifications within the scope of the technical scheme of the utility model without departing from the utility model, and equivalent embodiments with equivalent changes are equivalent to the above-mentioned disclosed technical content. Any simple modification, equivalent change and modification of the above-mentioned embodiments within the scope of the technical scheme of the utility model belong to the scope of the utility model.

Claims

1. A transmission wrench, comprising a body, an input gear, a transmission module and an output gear, all arranged on the body, the input gear driving the output gear to rotate through the transmission module, characterized in that: The input gear is fixedly connected with an extension rod, and the extension rod is used for driving the input gear to rotate.

2. The power wrench of claim 1, wherein: The input gear is fixedly connected with the extension rod through a threaded part.

3. The power wrench of claim 2, wherein: The threaded part is a screw or a bolt.

4. The power wrench of claim 1, wherein: The extension rod is provided with a fixing structure for positioning the body, and the fixing structure comprises a handle ring used for cooperating with a structure outside to position the body.

5. The power wrench of claim 4, wherein: The handle ring is provided with a position adjusting ring used for adjusting the relative position of the handle and the extension rod.

6. The power wrench of claim 5, wherein: The position adjusting ring is internally provided with a locking structure used for locking the position adjusting ring to prevent the position adjusting ring from sliding relative to the extension rod.

7. The power wrench of claim 1, wherein: The end of the extension rod away from the body is provided with a control hole, the control hole is non-circular, and the control hole is used for assembling a driving device outside.

8. The power wrench of claim 1, wherein: The transmission module comprises a first gear, a second gear and a third gear which are sequentially engaged, the first gear, the second gear and the third gear are rotationally arranged in the body, the first gear is engaged with the input gear, and the third gear is engaged with the output gear.

9. The power wrench of claim 1, wherein: The output gear is provided with a first output hole which is non-circular, and the first output hole is detachably provided with an output part, the output part is provided with a second output hole which is non-circular and has a shape different from that of the first output hole.

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