CN215148599U

CN215148599U - Impact wrench

Info

Publication number: CN215148599U
Application number: CN202023231686.5U
Authority: CN
Inventors: 王平; 周翔
Original assignee: Zhejiang Ken Tools Co ltd; Ken Holding Co ltd
Current assignee: Zhejiang Ken Tools Co ltd; Ken Holding Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-12-14
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses an impact wrench, it includes fuselage and grab handle, the grab handle is rectangular form structure, the one end of grab handle connect in the outer peripheral face of fuselage, the other end of grab handle is followed the axis direction of fuselage extends the setting. This impact wrench sets up the extending direction of grab handle to be unanimous with the axis direction of fuselage, when holding on the grab handle with the hand, compares with the impact wrench of L shape structure, and the application of force position of hand is more close to the axis of impacting the spanner, has reduced the upset moment when impacting the spanner operation, and the user is more steady when the operation is strikeed the spanner, improves the operation quality. Especially, when the working face of the user is higher than the chest of the user, the convenience of the operation of the impact wrench is particularly remarkable. In addition, the handle is in a strip shape, a plurality of positions capable of being held can be provided, and a user can conveniently adjust the holding part to obtain the most comfortable holding effect.

Description

Impact wrench

Technical Field

The utility model relates to an impact wrench.

Background

The existing impact wrench comprises a machine body and a handle, wherein the handle is connected with the machine body to form an L-shaped structure. When a user holds the impact wrench, the handle is arranged approximately vertical to the machine body, so that the holding direction of the hand is approximately vertical to the machine body, and the force application part of the hand is far away from the axis of the impact wrench. When a user operates with one hand, the impact wrench is easy to generate a turning moment, which causes the instability of the machine or the poor operation quality. In order to solve the above problem, the user generally adopts the following two ways: the first mode is a two-hand operation, one hand holds the handle and the other hand holds the body to keep the impact wrench stable; in the second mode, the impact wrench is obliquely driven to keep a certain inclination angle with the working surface so as to eliminate the overturning moment. If adopt first mode, user's both hands are occupied, and the operation is inconvenient and hard. If the second mode is adopted, the impact wrench is obliquely driven, so that the screw is extremely easy to skew or jump out from the surface of the workpiece, and the operation quality is influenced. Therefore, when the user uses the impact wrench with the L-shaped structure, the user experience is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an impact wrench in order to overcome inconvenient defect of operation during the operation of impact wrench among the prior art.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

the impact wrench is characterized by comprising a machine body and a grab handle, wherein the grab handle is of a long strip-shaped structure, one end of the grab handle is connected to the outer peripheral surface of the machine body, and the other end of the grab handle extends along the axis direction of the machine body.

In this scheme, this impact wrench sets up the extending direction of grab handle to unanimous with the axis direction of fuselage, when holding on the grab handle, compares with the impact wrench of L shape structure, and the application of force position of hand is more close to the axis of impacting the spanner, has reduced the upset moment who strikes the spanner, and the user is more steady when the operation strikes the spanner, improves the operation quality. Especially, when the working face of the user is higher than the chest of the user, the convenience of the operation of the impact wrench is particularly remarkable. In addition, the handle is in a strip shape, a plurality of positions capable of being held can be provided, and a user can conveniently adjust the holding part to obtain the most comfortable holding effect.

Preferably, both ends of the handle are connected to the body.

In this scheme, adopt above-mentioned structural style, improve the steadiness that grab handle and fuselage are connected.

Preferably, the handle includes a holding portion and a bending portion connected to each other, the bending portion is disposed at one end of the holding portion, and the bending portion is bent toward the body, so that an accommodating cavity is formed between the holding portion and the body.

In this scheme, adopt above-mentioned structural style, the holding chamber is used for holding operator's finger, the operator gripping portion of being convenient for.

Preferably, the grab handle further comprises a connecting portion, one end of the connecting portion is connected to the bending portion, the other end of the connecting portion extends along the axis direction of the machine body, and one side surface of the connecting portion is attached to and connected to the outer surface of the machine body.

In this scheme, adopt above-mentioned structural style, the grab handle passes through connecting portion to be connected in the fuselage, and connecting portion increase grab handle and the area of being connected of fuselage for grab handle firm in connection. The connecting part can be fixedly connected with the machine body, and the connecting part can also be connected with the machine body through bolts or screws.

Preferably, the outer surface of the grab handle is provided with anti-skid lines.

In this scheme, adopt above-mentioned structural style, the roughness of increase grab handle, increase frictional force prevents that the hand from skidding on the grab handle.

Preferably, the fuselage includes hollow casing, motor and gear box subassembly, the casing cover is located the motor and connect in the one end of gear box subassembly, the armature shaft of motor connect in the gear box subassembly, the other end of gear box subassembly is provided with the output shaft.

In this scheme, adopt above-mentioned structural style, the casing is used for protecting the motor, and the casing still is fixed motor and gear box subassembly. The gearbox assembly is made up of a plurality of existing gears, and the gear ratio of the gearbox assembly can be set as desired. If the transmission ratio of the gear box component is large, the rotating speed of the output shaft is higher than that of the motor, and the torque of the output shaft is small; if the transmission ratio of the gear box component is small, the rotating speed of the output shaft is lower than that of the motor, and the torque of the output shaft is large.

Preferably, the impact wrench further includes a switch component and a control board, the switch component and the control board are disposed in the housing, the switch component is electrically connected to the control board, the control board is electrically connected to the motor, the switch component and the control board are stacked along an axial direction of the motor, the switch component includes a button, and the button penetrates through the housing and is exposed out of a surface of the housing.

In this scheme, adopt above-mentioned structural style for the radial dimension of fuselage is littleer, and the position that corresponding grab handle set up also more is close to the axis of output shaft, reduces the upset moment when strikeing the spanner operation, and the user is more steady when the operation strikes the spanner, improves the operation quality.

Preferably, the impact wrench further comprises a battery pack, the battery pack and the gear box assembly are respectively arranged at two ends of the machine body, the battery pack is connected to the end portion of the shell in a clamping manner, and a power line of the battery pack penetrates through the shell and is electrically connected to the control board.

In this scheme, the battery package of block connection is convenient for the user dismouting. The battery pack and the gear box assembly are arranged at two ends of the machine body, and the weight of the machine body is balanced.

Preferably, one end of the handle is attached to an outer surface of the gearbox assembly.

In this scheme, the gear box subassembly is strong structure department usually, and its weight is great, and the grab handle is connected on the gear box subassembly for the position of gripping of grab handle is closer to impact wrench's focus department, and the user of being convenient for is handheld.

Preferably, the grab handle has hinged end and link, the hinged end articulate in the fuselage, link swing joint in the fuselage, the link can be followed the radial direction swing of fuselage, the button is located link department, the grab handle passes through the link is followed the radial direction swing of fuselage, in order to open or close the button.

Preferably, the length of the handle is not less than 50 mm.

Preferably, the housing is made of plastic.

In the scheme, the shell made of the plastic material has ductility, and if the impact wrench falls, certain impact can be absorbed, so that the components in the shell can be protected; meanwhile, the plastic shell has a good insulation effect.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in: this impact wrench sets up the extending direction of grab handle to be unanimous with the axis direction of fuselage, when holding on the grab handle with the hand, compares with the impact wrench of L shape structure, and the application of force position of hand is more close to the axis of impacting the spanner, has reduced the upset moment when impacting the spanner operation, and the user is more steady when the operation is strikeed the spanner, improves the operation quality. Especially, when the working face of the user is higher than the chest of the user, the convenience of the operation of the impact wrench is particularly remarkable. In addition, the handle is in a strip shape, a plurality of positions capable of being held can be provided, and a user can conveniently adjust the holding part to obtain the most comfortable holding effect.

Drawings

Fig. 1 is a schematic structural view of an impact wrench according to a preferred embodiment of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Description of reference numerals:

fuselage 1

Housing 11

Electric machine 12

Gearbox assembly 13

Output shaft 131

Switch component 14

Push button 141

Control panel 15

Battery pack 16

A handle 2, a hinged end 2a and a connecting end 2b

Grip part 21

Bent part 22

Connecting part 23

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1-2, the present embodiment discloses an impact wrench, which includes a body 1 and a handle 2, wherein the handle 2 is in a strip structure, one end of the handle 2 is connected to an outer peripheral surface of the body 1, and the other end of the handle 2 extends along an axial direction of the body 1.

In this embodiment, this impact wrench sets up the extending direction of grab handle 2 to be unanimous with the axis direction of fuselage 1, when the hand is held on grab handle 2, compares with the impact wrench of L shape structure, and the application of force position of hand is more close to the axis of impacting the spanner, has reduced the upset moment who strikes the spanner, and the user is more steady when the operation strikes the spanner, improves operation quality. Especially, when the working face of the user is higher than the chest of the user, the convenience of the operation of the impact wrench is particularly remarkable. In addition, the handle 2 is in a strip shape, which can provide a plurality of positions for holding, and is convenient for users to adjust the holding position to obtain the most comfortable holding effect.

As shown in fig. 2, the handle 2 includes a holding portion 21 and a bending portion 22 connected to each other, one end of the holding portion 21 is provided with the bending portion 22, and the bending portion 22 is bent toward the machine body 1, so that an accommodating cavity is formed between the holding portion 21 and the machine body 1. The accommodating cavity is used for accommodating fingers of an operator, and the operator can conveniently grasp the holding part 21.

Preferably, the handle 2 further includes a connecting portion 23, one end of the connecting portion 23 is connected to the bending portion 22, the other end of the connecting portion 23 extends along the axial direction of the body 1, and one side of the connecting portion 23 is attached to and connected to the outer surface of the body 1. The grab handle 2 is connected to the machine body 1 through the connecting part 23, and the connecting part 23 increases the connecting area of the grab handle 2 and the machine body 1, so that the grab handle 2 is firmly connected. The connecting portion 23 may be fixedly connected to the body 1, and the connecting portion 23 may be connected to the body 1 by a bolt or a screw.

Furthermore, the outer surface of the handle 2 is provided with anti-slip threads (not shown) to increase the roughness of the handle 2 and increase the friction force to prevent the hand from slipping on the handle 2.

In order to improve the stability of the connection between the handle 2 and the machine body 1, the two ends of the holding portion 21 are both provided with a bending portion 22 and a connecting portion 23, and the handle 2 is connected to the machine body 1 through the connecting portions 23 at the two ends.

The fuselage 1 comprises a hollow housing 11, a motor 12 and a gearbox assembly 13. The housing 11 houses a motor 12 and is connected to one end of a gear box assembly 13, the motor 12 is pivotally connected to the gear box assembly 13, and the other end of the gear box assembly 13 is provided with an output shaft 131. The housing 11 is used to protect the motor 12, and the housing 11 also secures the motor 12 to the gear box assembly 13. The gear box assembly 13 is composed of a plurality of existing gears, and the gear ratio of the gear box assembly 13 can be set as desired. If the transmission ratio of the gear box assembly 13 is large, the rotation speed of the output shaft 131 is higher than that of the motor 12, and the torque of the output shaft 131 is small; if the gear ratio of the gear box assembly 13 is small, the rotation speed of the output shaft 131 is lower than the rotation speed of the motor 12, and the torque of the output shaft 131 is large.

Because gear box subassembly 13 is usually strong structure department, its weight is great, is close to the focus of impact wrench, and the one end of grab handle 2 is connected on gear box subassembly 13 for grab handle 2's the position of gripping is closer to the focus of impact wrench department, and the user of being convenient for is handheld.

The impact wrench further includes a switch unit 14 and a control board 15, the switch unit 14 and the control board 15 being disposed in the housing 11, the switch unit 14 being electrically connected to the control board 15, the control board 15 being electrically connected to the motor 12. Switch element 14, control panel 15 stack the setting along the axis direction of motor 12 for the radial dimension of fuselage 1 is littleer, and the position that corresponding grab handle 2 set up also is closer to the axis of output shaft 131, reduces the upset moment when assaulting the spanner operation, and the user is more steady when the operation is assaulted the spanner, improves the operating quality. The switch part 14 includes a button 141, and the button 141 penetrates the housing 11 and is exposed to the surface of the housing 11.

The grip 2 has a hinged end 2a and a connecting end 2 b. Hinged end 2a articulates in fuselage 1, and link 2b swing joint in fuselage 1, link 2b can be followed the radial direction swing of fuselage 1, and button 141 locates link 2b department, and grab handle 2 accessible link 2b is followed the radial direction swing of fuselage 1 to open or close button 141. Swing joint is realized with fuselage 1 to the unsmooth complex mode among the usable prior art of link 2b, still sets up spacing portion in the recess usually for the swing stroke of control link prevents the link roll-off. By adopting the arrangement, a user can conveniently and rapidly turn on or off the motor. Preferably, the length of the handle 2 is not less than 50mm, and the user can select a proper holding part according to the requirement.

The impact wrench further comprises a battery pack 16, and the battery pack 16 and the gear box assembly 13 are respectively arranged at two ends of the machine body 1, so that the weight balance of the machine body 1 is facilitated. The battery pack 16 is engaged with an end of the housing 11, and a power cord of the battery pack 16 passes through the housing 11 and is electrically connected to the control board 15. The battery pack 16 is connected with the housing in a clamping manner through the existing clamping piece and clamping groove, so that the battery pack is convenient for a user to disassemble and assemble.

The housing 11 is made of plastic. The shell 11 made of plastic has ductility, and if the impact wrench falls, certain impact can be absorbed, so that components in the shell 11 can be protected; meanwhile, the plastic shell 11 has a good insulation effect.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. An impact wrench is characterized by comprising a machine body and a grab handle, wherein the grab handle is of a long strip-shaped structure, one end of the grab handle is connected to the outer peripheral surface of the machine body, and the other end of the grab handle extends along the axial direction of the machine body;

the grab handle comprises a holding part and a bending part which are connected with each other, wherein the bending part is arranged at one end of the holding part and bends along the direction towards the machine body, so that an accommodating cavity is formed between the holding part and the machine body.

2. The impact wrench of claim 1, wherein both ends of the handle are connected to the body.

3. The impact wrench of claim 1, wherein the handle further includes a connecting portion, one end of the connecting portion is connected to the bent portion, the other end of the connecting portion extends along the axial direction of the body, and a side surface of the connecting portion is engaged with and connected to the outer surface of the body.

4. The impact wrench of claim 1, wherein the outer surface of the grip is provided with non-slip threads.

5. The impact wrench of any one of claims 1-4, wherein the body includes a hollow housing, a motor, and a gearbox assembly, the housing being housed within the motor and connected to one end of the gearbox assembly, the motor being pivotally connected to the gearbox assembly at its other end, the gearbox assembly being provided with an output shaft at its other end.

6. The impact wrench of claim 5, further comprising a switch member and a control board disposed in the housing, the switch member being electrically connected to the control board, the control board being electrically connected to the motor, the switch member and the control board being stacked in an axial direction of the motor, the switch member including a button passing through the housing and exposed to a surface of the housing.

7. The impact wrench of claim 6, further comprising a battery pack, wherein the battery pack and the gear box assembly are respectively disposed at two ends of the body, the battery pack is snap-fit connected to an end of the housing, and a power cord of the battery pack passes through the housing and is electrically connected to the control board.

8. The impact wrench of claim 6, wherein the handle has a hinged end hinged to the body and a connecting end movably connected to the body, the connecting end being swingable in a radial direction of the body, the button being provided at the connecting end, the handle being swingable in the radial direction of the body through the connecting end to open or close the button.

9. The impact wrench of any one of claims 6-8, wherein the grip has a length of not less than 50 mm.