Handheld electric wrench

Abstract

The utility model relates to the technical field of electric wrenches, and discloses a handheld electric wrench which comprises a machine top shell and a lower handheld component, the handheld component is formed by combining a handle a and a handle b, a connecting pile is arranged at the top of the handle a, a connecting ring is arranged in the connecting pile, a connecting pile matched with the handle a is arranged at the top of the handle b, and a connecting column matched with the connecting ring is arranged in the connecting pile. The handle is clamped in the connecting ring on the inner side of the connecting pile through the connecting column and connected with the upper machine top shell, and a damping ring is arranged between the outer side wall of the connecting column and the connecting pile. Damping rings are arranged at the connecting positions of the handle a, the handle b and the top machine shell, machine body vibration borne by the handles when the device is used can be effectively reduced, stress borne by arms of workers during operation is reduced, the operation efficiency of the workers is improved, and vibration noise generated when the machine body is used can also be reduced. Limiting strips and clamping grooves matched with the limiting strips are arranged on the two longitudinal side edges of the handle a and the handle b respectively, the handles on the two sides are combined and assembled more conveniently, and the appearance is more neat after the device is assembled.

Description

Technical Field

[0001] The utility model relates to the field of electric wrenches, in particular to a handheld electric wrench. Background Art

[0002] In the construction field, an electric wrench is a wrench powered by a power source or battery, and is a tool for tightening bolts. However, the impact torque of an electric wrench is large when it is used. When workers use it, the vibration will produce a loud noise, and it is easy for workers to get tired quickly. Workers need to rest for a long time, which reduces work efficiency.

[0003] The patent application with publication number CN103753467A discloses a new type of electric wrench with adjustable striking force, including a power supply device, a casing part, a main body, a switch, a pull shaft, a hammer body and a motor. A single-chip microcomputer device is arranged on the main body, and the single-chip microcomputer device includes a single-chip microcomputer device and a time setting module. The single-chip microcomputer device is respectively connected to the switch and the time setting module.

[0004] The prior art device is fixedly connected to the handle, and when the device is used, the handle vibrates greatly and makes a lot of noise.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0006] The utility model aims to provide a handheld electric wrench, which can effectively reduce the vibration of the handle during the use of the device, reduce the noise generated during the use, reduce the vibration force on the workers, and improve the operating efficiency.

[0007] The technical solution adopted by the utility model is:

[0008] A handheld electric wrench comprises a top shell and a lower handheld component, wherein the handheld component is composed of a handle a and a handle b. A connecting pile is provided on the top of handle a, and a connecting ring is provided inside the connecting pile. A connecting pile is provided on the top of handle b to match handle a, and a connecting column connected to the connecting ring is provided inside the connecting pile. The handle is connected to the upper top shell by being clamped in the connecting ring inside the connecting pile through the connecting column, and a shock-absorbing ring is provided between the outer wall of the connecting column and the connecting pile.

[0009] By adopting the above structure, a shock-absorbing ring is arranged at the connection between the handle a, the handle b and the top casing, which can effectively reduce the body vibration generated by the handle when the device is used, reduce the force on the workers during operation, and improve the operating efficiency.

[0010] Preferably, the top shell includes a head shell, a casing, and a back cover connected in sequence, a middle cover is arranged inside the casing, and a fixed connecting ring is arranged at the bottom of the casing and the head shell. The top shell is fixedly connected to the handle by being sleeved on the connecting column through the fixed connecting ring.

[0011] By adopting the above structure, the fixed connecting ring at the bottom of the housing and the head housing is connected to the lower handle, and the device has a simple structure and high stability.

[0012] Preferably, a connecting rod sleeve is provided on the top of handle a, and a connecting rod matching the connecting rod sleeve is provided on the top of handle b.

[0013] By adopting the above structure, the top of the handle is more firmly connected to the upper casing.

[0014] Preferably, both longitudinal sides of handle a are provided with limiting strips, and both longitudinal sides of handle b are provided with snap-in grooves matching the limiting strips.

[0015] By adopting the above structure, it is more convenient to assemble the handles on both sides together, and the appearance of the device is more neat after assembly.

[0016] Preferably, a rubber sleeve is provided on the outer side wall of the handle.

[0017] By adopting the above structure, it is convenient for workers to operate by hand, and workers are prevented from sweating and slipping during operation, and the operation is safer.

[0018] Preferably, lattice-type reinforcing ribs are provided on the inner sides of handle a and handle b.

[0019] By adopting the above structure and providing reinforcing ribs, the force-bearing strength of the handle can be enhanced, and the overall strength of the handle is higher.

[0020] Preferably, the bottom of the handle is a connecting groove, and the battery pack is snapped into the connecting groove.

[0021] By adopting the above structure, the handle is directly connected to the battery pack to provide power, and the device structure is more complete.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1. The utility model provides a shock-absorbing ring at the connection between the handle a, handle b and the top casing, which can effectively reduce the vibration of the handle when the device is in use, reduce the force on the worker's arm during operation, improve the worker's operating efficiency, and also reduce the vibration noise generated when the body is in use.

[0024] 2. The handles a and b of the utility model are respectively provided with matching limit strips and card slots on both sides of the longitudinal direction, so that the handles on both sides can be assembled more conveniently, and the appearance of the device is more neat after assembly.

[0025] 3. The outer wall of the handle of the utility model device is provided with a rubber sleeve, which is convenient for workers to hold and operate, avoiding sweating and slipping during operation, and the operation is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the handle a of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the handle b of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the top shell of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the battery pack of the utility model.

[0030] Among them: 1. casing; 2. back cover; 3. middle cover; 4. head shell; 5. handle a; 6. battery pack; 7. connecting pile; 8. shock absorbing ring; 9. connecting ring; 10. connecting column; 11. connecting rod sleeve; 12. connecting rod; 13. rubber sleeve; 14. reinforcing rib; 15. handle b; 16. snap-in groove; 17. limit strip; 18. connecting groove; 19. fixed connecting ring. DETAILED DESCRIPTION

[0031] like Figure 1-4 As shown, the handheld electric wrench comprises a top shell and a lower handheld component, wherein the handheld component is composed of a handle a5 and a handle b15. A connecting post 7 is provided on the top of the handle a5, and a connecting ring 9 is provided inside the connecting post 7. A connecting post 10 which matches the connecting ring 9 is provided inside the connecting post 7. The handle is connected to the upper top shell by being clamped in the connecting ring 9 inside the connecting post 7 through the connecting post 10. A shock absorbing ring 8 is provided between the outer wall of the connecting post 10 and the connecting post 7. The top shell comprises a head shell 4, a housing 1, and a back cover 2 which are connected in sequence. A middle cover 3 is provided inside the housing 1. A fixed connecting ring 19 is provided at the bottom of the housing 1 and the head shell 4. The top shell is fixedly connected to the handle by being sleeved on the connecting post 10 through the fixed connecting ring 19. The connection between the handles a5 and b15 and the top housing of the device of the utility model is provided with a shock-absorbing ring 8, which can effectively reduce the body vibration of the handle when the device is in use, reduce the force on the workers' arms during operation, improve the workers' operating efficiency, and also reduce the vibration noise generated when the body is in use.

[0032] A connecting rod sleeve 11 is provided on the top of the handle a5, and a connecting rod 12 matching the connecting rod sleeve 11 is provided on the top of the handle b15. Limiting strips 17 are provided on both longitudinal sides of the handle a5, and clamping grooves 16 matching the limiting strips 17 are provided on both longitudinal sides of the handle b15. Matching limiting strips and clamping grooves are provided on both longitudinal sides of the handle a and the handle b, respectively, so that the two handles can be assembled more conveniently, and the appearance of the device is more neat after assembly.

[0033] The outer wall of the handle is provided with a rubber sleeve 13. The outer wall of the device handle is provided with a rubber sleeve, which is convenient for workers to hold and operate, and avoids sweating and slipping during operation, and the operation safety is higher.

[0034] The inside of the handle a5 and the handle b15 is provided with a lattice-shaped reinforcing rib 14. The bottom of the handle is a connecting groove 18, and the battery pack 6 is clamped in the connecting groove 18. The reinforcing rib 14 can enhance the force strength of the handle, and the overall strength of the handle is higher.

[0035] When the device is in use, the vibration generated when the bolts of the top casing are tightened is transmitted to the lower handle, and the vibration can be reduced by the shock-absorbing ring 8, thereby effectively reducing the force on the workers' arms during operation, avoiding the need for workers to stop and rest many times during operation, improving the workers' operating efficiency, and also reducing the vibration and noise generated when the machine body is in use, improving the workers' working environment.

[0036] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should be included in the protection scope determined by the claims of the present invention.

Claims

1. A handheld electric wrench, comprising a top housing and a lower handheld component, characterized in that: The handheld component is composed of a handle a and a handle b. A connecting pile is provided on the top of handle a, and a connecting ring is provided inside the connecting pile. A connecting pile is provided on the top of handle b to match handle a. A connecting column connected to the connecting ring is provided inside the connecting pile. The handle is connected to the upper machine top shell by being clamped in the connecting ring inside the connecting pile through the connecting column. A shock-absorbing ring is provided between the outer wall of the connecting column and the connecting pile.

2. The handheld electric wrench according to claim 1, characterized in that: The top shell comprises a head shell, a casing and a back cover which are connected in sequence. A middle cover is arranged inside the casing. Both the casing and the bottom of the head shell are provided with fixed connecting rings. The top shell is sleeved on the connecting column and fixedly connected to the handle through the fixed connecting ring.

3. The handheld electric wrench according to claim 1, characterized in that: A connecting rod sleeve is provided on the top of the handle a, and a connecting rod matching the connecting rod sleeve is provided on the top of the handle b.

4. The handheld electric wrench according to claim 1, characterized in that: The handle a is provided with limiting strips on both longitudinal sides, and the handle b is provided with clamping grooves matching the limiting strips on both longitudinal sides.

5. The handheld electric wrench according to claim 1, characterized in that: The outer side wall of the handle is provided with a rubber sleeve.

6. The handheld electric wrench according to claim 1, characterized in that: The inner sides of the handles a and b are provided with lattice-type reinforcing ribs.

7. The handheld electric wrench according to claim 1, characterized in that: The bottom of the handle is a connecting groove, and the battery pack is clamped in the connecting groove.

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