Wrench with damping function

Abstract

The wrench with the damping function comprises a machine head body and a handle assembly, the machine head body and the handle assembly are detachably connected, and a plurality of fasteners used for fixing the machine head body and the handle assembly are arranged between the machine head body and the handle assembly. The handle assembly comprises a first handle and a second handle, and the first handle and the second handle are arranged on the left side and the right side of the machine head body respectively; a plurality of damping assemblies are arranged between the first handle and the machine head body, and a plurality of damping assemblies are arranged between the second handle and the machine head body. The damping assembly comprises a damping spring and a damping buffering piece. The machine head body and the handle assembly are designed in a split mode, a plurality of damping assemblies are arranged at the connecting position of the machine head body and the handle assembly, the damping effect is good and reliable, and the comfort level of a user is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric wrenches, and particularly relates to a wrench with a shock absorption function. Background Art

[0002] At present, for the traditional lithium battery electric wrench on the market, the head body and the handle are connected as a whole. During the working process of the electric wrench, the impact block continuously makes impact movements, causing the whole machine to be in a high-frequency vibration state. Moreover, the greater the torque of the electric wrench, the greater the vibration amplitude of the whole machine. Such frequent impact vibrations are very likely to cause damage to machine parts, such as switches, controllers, battery packs and other parts, seriously affecting the service life of the machine. At the same time, due to the frequent vibration, it brings a bad experience to the user. Therefore, it is necessary to design a wrench with a shock absorption function to overcome the above difficulties. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the utility model designs a wrench with a shock absorption function. The head body and the handle assembly of the utility model are designed separately, and a plurality of shock absorption components are arranged at the connection position between the two, with good and reliable shock absorption effect and improved comfort of the user.

[0004] The invention object of the utility model is realized by the following technical scheme: a wrench with a shock absorption function, including a head body and a handle assembly, the head body and the handle assembly are detachably connected, and a plurality of fasteners for fixing the two are arranged between the head body and the handle assembly; the handle assembly includes a first handle and a second handle, and the first handle and the second handle are respectively arranged on the left and right sides of the head body; a plurality of shock absorption components are arranged between the first handle and the head body, and a plurality of shock absorption components are arranged between the second handle and the head body; the shock absorption component includes a shock absorption spring and a damping buffer.

[0005] Preferably, a first installation groove for installing the shock absorption component is arranged at the end of the head body facing the first handle, and a second installation groove for installing the shock absorption component is arranged at the end of the head body facing the second handle; the fastener sequentially passes through the first handle, the first installation groove and the second installation groove, and extends and installs onto the second handle; a shock absorption component is arranged between the first installation groove and the first handle, and a shock absorption component is also arranged between the second installation groove and the second handle. By arranging the first installation groove and the second installation groove, it is convenient to install the fastener and the shock absorption component.

[0006] Preferably, a first hollow mounting post for mounting a fastener is provided on the first handle, and a second hollow mounting post for mounting a fastener is provided on the second handle; the first hollow mounting post and the second hollow mounting post are coaxially arranged, and the first mounting groove and the second mounting groove are coaxially arranged; the second hollow mounting post penetrates through the first mounting groove and the second mounting groove and extends towards the first hollow mounting post; the fastener is mounted on the step at the starting end of the first hollow mounting post and extends into the second hollow mounting post.

[0007] By providing the first hollow mounting post and the second hollow mounting post, it is convenient to connect the first handle and the second handle together through the fastener; the first hollow mounting post and the second hollow mounting post synchronously pass through the machine head body, so that the handle assembly and the machine head body can maintain a stable connection.

[0008] Preferably, a shock-absorbing assembly is provided between the first mounting groove and the first handle. The shock-absorbing assembly includes a shock-absorbing spring and a damping buffer. The shock-absorbing spring is sleeved and installed between the first hollow mounting post and the second hollow mounting post; the damping buffer is sleeved and installed on the second hollow mounting post, and the damping buffer is in contact with the bottom of the first mounting groove; one end of the shock-absorbing spring abuts against the first handle, and the other end of the shock-absorbing spring abuts against the damping buffer.

[0009] When a shock-absorbing assembly is installed between the first mounting groove and the first handle, and there is often an impact block in the machine head body, the shock-absorbing spring and the damping buffer can absorb the energy generated when the impact block vibrates, reduce the shock feeling of the user, and provide a better user experience.

[0010] Preferably, a shock-absorbing assembly is provided between the second mounting groove and the second handle. The shock-absorbing assembly includes a shock-absorbing spring and a damping buffer. The shock-absorbing spring is sleeved and installed on the second hollow mounting post; the damping buffer is sleeved and installed on the second hollow mounting post, and the damping buffer is in contact with the bottom of the second mounting groove; one end of the shock-absorbing spring abuts against the second handle, and the other end of the shock-absorbing spring abuts against the damping buffer.

[0011] When a shock-absorbing assembly is installed between the second mounting groove and the second handle, and there is often an impact block in the machine head body, the shock-absorbing spring and the damping buffer can absorb the energy generated when the impact block vibrates; here, shock-absorbing assemblies are provided at both ends of the machine head body, and the shock-absorbing effect of the multiple shock-absorbing assemblies cooperating with each other is better, the shock feeling transmitted from the impact block to the handle assembly is smaller, and the user experience is better.

[0012] Preferably, the outer diameters of the first hollow mounting post and the second hollow mounting post are the same, and the bottom hole diameters of the first mounting groove and the second mounting groove are the same; the outer diameter of the first hollow mounting post is adapted to the bottom hole diameter of the first mounting groove. By reasonably setting the bottom hole diameters of the first mounting groove and the second mounting groove, it is convenient for the first handle and the second handle to be smoothly installed during assembly; the second hollow mounting post can pass through the first mounting groove and the second mounting groove, so that the first handle and the second handle can be firmly connected to the machine head body.

[0013] Preferably, a plurality of strip-shaped limiting protrusions are provided on the edge of the second handle, and a plurality of strip-shaped limiting grooves are provided on the edge of the first handle; the strip-shaped limiting protrusions are arranged in the strip-shaped limiting grooves, and the outer shapes of the strip-shaped limiting protrusions and the strip-shaped limiting grooves are mutually adapted. Through the mutual cooperation of the strip-shaped limiting protrusions and the strip-shaped limiting grooves, the first handle and the second handle can be mutually limited when installed together, avoiding mutual dislocation of the two.

[0014] Preferably, a first arc-shaped mounting portion is provided on the top edge of the first handle, and a second arc-shaped mounting portion is provided on the top edge of the second handle; the machine head body is a columnar body, and the outer contour shapes of the first arc-shaped mounting portion and the second arc-shaped mounting portion both match the outer contour shape of the machine head body. By providing the first arc-shaped mounting portion and the second arc-shaped mounting portion, the handle assembly and the machine head body can be tightly fitted and installed, and the gap between the two is smaller.

[0015] Preferably, a plurality of locking screws for fixing the two are further provided between the first handle and the second handle; the locking screws are arranged on the edge of the handle assembly. On the basis of the fasteners, locking screws are installed, so that the connection between the first handle and the second handle is more stable and reliable.

[0016] Compared with the prior art, the utility model has the following beneficial effects: 1. The machine head body and the handle assembly of the utility model are designed in a split manner, and the disassembly of the two is more convenient, which is convenient for subsequent maintenance; 2. The machine head body and the handle assembly are designed in a split manner, which is convenient to install a shock absorption assembly at the connection part between the machine body and the handle assembly. The shock absorption spring and the damping buffer absorb the shock energy, reduce the vibration of the handle assembly, and greatly improve the service life of the switch, the controller and the battery pack; 3. Due to the setting of a plurality of shock absorption assemblies, the vibration feeling at the handle holding part is greatly reduced, and the comfort of the user is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the utility model;

[0018] Figure 2 is a perspective view of the utility model with the first handle hidden;

[0019] Figure 3 This is an exploded view of the present utility model;

[0020] Figure 4 This is an exploded view of another perspective of the present utility model;

[0021] Figure 5 This is a three-dimensional view of the second handle;

[0022] Figure 6 This is a three-dimensional view of the first handle;

[0023] Markings in the figure: 1, nose body; 2, handle assembly; 21, first handle; 22, second handle; 23, first hollow mounting post; 24, second hollow mounting post; 3, fastener; 4, shock-absorbing assembly; 41, shock-absorbing spring; 42, damping buffer; 5, first mounting groove; 6, second mounting groove; 7, strip-shaped limiting protrusion; 8, strip-shaped limiting groove; 9, first arc-shaped mounting portion; 10, second arc-shaped mounting portion; 11, locking screw. Specific embodiments

[0024] The present utility model will be further described below in conjunction with the embodiments shown in the drawings:

[0025] As Figures 1 to 6 shown, this embodiment discloses a wrench with a shock-absorbing function, including a nose body 1 and a handle assembly 2. The nose body 1 and the handle assembly 2 are detachably connected, and a number of fasteners 3 for fixing the two are provided between the nose body 1 and the handle assembly 2; the handle assembly 2 includes a first handle 21 and a second handle 22, and the first handle 21 and the second handle 22 are respectively arranged on the left and right sides of the nose body 1; a number of shock-absorbing assemblies 4 are provided between the first handle 21 and the nose body 1, and a number of shock-absorbing assemblies 4 are provided between the second handle 22 and the nose body 1; the shock-absorbing assembly 4 includes a shock-absorbing spring 41 and a damping buffer 42.

[0026] One end of the machine head body 1 facing the first handle 21 is provided with a first installation groove 5 for installing the shock absorption assembly 4, and one end of the machine head body 1 facing the second handle 22 is provided with a second installation groove 6 for installing the shock absorption assembly 4; the fastener 3 sequentially passes through the first handle 21, the first installation groove 5 and the second installation groove 6, and extends and is installed on the second handle 22; a shock absorption assembly 4 is provided between the first installation groove 5 and the first handle 21, and a shock absorption assembly 4 is also provided between the second installation groove 6 and the second handle 22. A first hollow installation column 23 for installing the fastener 3 is provided on the first handle 21, and a second hollow installation column 24 for installing the fastener 3 is provided on the second handle 22; the first hollow installation column 23 and the second hollow installation column 24 are coaxially arranged, and the first installation groove 5 and the second installation groove 6 are coaxially arranged; the second hollow installation column 24 penetrates through the first installation groove 5 and the second installation groove 6 and extends towards the first hollow installation column 23; the fastener 3 is installed on the starting end step of the first hollow installation column 23 and extends into the second hollow installation column 24. A shock absorption assembly 4 is provided between the first installation groove 5 and the first handle 21. The shock absorption assembly 4 includes a shock absorption spring 41 and a damping buffer 42. The shock absorption spring 41 is sleeved and installed between the first hollow installation column 23 and the second hollow installation column 24; the damping buffer 42 is sleeved and installed on the second hollow installation column 24, and the damping buffer 42 is in contact with the bottom of the first installation groove 5; one end of the shock absorption spring 41 abuts against the first handle 21, and the other end of the shock absorption spring 41 abuts against the damping buffer 42. A shock absorption assembly 4 is provided between the second installation groove 6 and the second handle 22. The shock absorption assembly 4 includes a shock absorption spring 41 and a damping buffer 42. The shock absorption spring 41 is sleeved and installed on the second hollow installation column 24; the damping buffer 42 is sleeved and installed on the second hollow installation column 24, and the damping buffer 42 is in contact with the bottom of the second installation groove 6; one end of the shock absorption spring 41 abuts against the second handle 22, and the other end of the shock absorption spring 41 abuts against the damping buffer 42. The outer diameters of the first hollow installation column 23 and the second hollow installation column 24 are the same, and the bottom hole diameters of the first installation groove 5 and the second installation groove 6 are the same; the outer diameter of the first hollow installation column 23 is adapted to the bottom hole diameter of the first installation groove 5.

[0027] A plurality of strip-shaped limiting protrusions 7 are provided on the edge of the second handle 22, and a plurality of strip-shaped limiting grooves 8 are provided on the edge of the first handle 21; the strip-shaped limiting protrusions 7 are arranged in the strip-shaped limiting grooves 8, and the outer shapes of the strip-shaped limiting protrusions 7 and the strip-shaped limiting grooves 8 are mutually adapted. A first arc-shaped mounting portion 9 is provided on the top edge of the first handle 21, and a second arc-shaped mounting portion 10 is provided on the top edge of the second handle 22; the machine head body 1 is a columnar body, and the outer contour shapes of the first arc-shaped mounting portion 9 and the second arc-shaped mounting portion 10 both match the outer contour shape of the machine head body 1. A plurality of locking screws 11 for fixing the two are further provided between the first handle 21 and the second handle 22; the locking screws 11 are arranged on the edge of the handle assembly 2.

[0028] The specific operation process of this embodiment is as follows. It is mainly to assemble the shock absorption assembly 4. Here, first install the shock absorption assembly 4 between the machine head body 1 and the second handle 22; first, sleevedly install the shock absorption springs 41 on the second hollow mounting posts 24 of the second handle 22, and then sleevedly install the damping buffer members 42 on the second hollow mounting posts 24. Here, it is necessary to make the ends of the damping buffer members 42 and the shock absorption springs 41 in contact; then integrally install the second handle 22 onto the machine head body 1, so that the second hollow mounting posts 24 pass through the first mounting groove 5 and the second mounting groove 6 at the same time; at this time, the damping buffer members 42 are in contact with the bottom of the second mounting groove 6, and the shock absorption springs 41 are in a compressed state; then start to install the shock absorption assembly 4 between the machine head body 1 and the first handle 21. First, sleevedly install the damping buffer members 42 on the second hollow mounting posts 24 and the damping buffer members 42 are installed at the bottom of the first mounting groove 6, and then sleevedly install the shock absorption springs 41 on the second hollow mounting posts 24; then install the first handle 21 onto the machine head body 1. At this time, the first hollow mounting posts 23 and the second hollow mounting posts 24 are arranged in alignment with each other, and then install the fasteners 3 between the first hollow mounting posts 23 and the second hollow mounting posts 24, and finally install the locking screws 11 on the edge of the handle assembly 2. An impact block is often provided inside the machine head body 1, and the shock absorption springs 41 and the damping buffer members 42 can absorb the vibration energy, so as to achieve the shock absorption effect.

[0029] The specific embodiments described in the text are only examples to illustrate the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A wrench with a shock absorbing function, comprising a head body (1) and a handle assembly (2), wherein the head body (1) and the handle assembly (2) are detachably connected, and a plurality of fasteners (3) for fixing the head body (1) and the handle assembly (2) are arranged between the head body (1) and the handle assembly (2); characterized in that: The handle assembly (2) comprises a first handle (21) and a second handle (22), wherein the first handle (21) and the second handle (22) are respectively arranged on the left and right sides of the machine head body (1); a plurality of shock absorbing assemblies (4) are arranged between the first handle (21) and the machine head body (1), and a plurality of shock absorbing assemblies (4) are arranged between the second handle (22) and the machine head body (1); the shock absorbing assemblies (4) comprise shock absorbing springs (41) and damping buffers (42).

2. The wrench with shock absorbing function according to claim 1, characterized in that: The end of the head body (1) facing the first handle (21) is provided with a first mounting groove (5) for mounting the shock absorbing assembly (4), and the end of the head body (1) facing the second handle (22) is provided with a second mounting groove (6) for mounting the shock absorbing assembly (4); the fastener (3) passes through the first handle (21), the first mounting groove (5) and the second mounting groove (6) in sequence, and extends to be mounted on the second handle (22); a shock absorbing assembly (4) is provided between the first mounting groove (5) and the first handle (21), and a shock absorbing assembly (4) is also provided between the second mounting groove (6) and the second handle (22).

3. The wrench with shock absorbing function according to claim 2, characterized in that: The first handle (21) is provided with a first hollow mounting column (23) for mounting a fastener (3), and the second handle (22) is provided with a second hollow mounting column (24) for mounting the fastener (3); the first hollow mounting column (23) and the second hollow mounting column (24) are coaxially arranged, and the first mounting groove (5) and the second mounting groove (6) are coaxially arranged; the second hollow mounting column (24) penetrates the first mounting groove (5) and the second mounting groove (6), and extends toward the first hollow mounting column (23); the fastener (3) is mounted on the beginning end step of the first hollow mounting column (23), and extends into the second hollow mounting column (24).

4. The wrench with shock absorbing function according to claim 3, characterized in that: A shock absorbing assembly (4) is provided between the first mounting groove (5) and the first handle (21), and the shock absorbing assembly (4) comprises a shock absorbing spring (41) and a damping buffer (42). The shock absorbing spring (41) is sleeved and installed between the first hollow mounting column (23) and the second hollow mounting column (24); the damping buffer (42) is sleeved and installed on the second hollow mounting column (24), and the damping buffer (42) is in contact with the bottom of the first mounting groove (5); one end of the shock absorbing spring (41) abuts against the first handle (21), and the other end of the shock absorbing spring (41) abuts against the damping buffer (42).

5. The wrench with shock absorbing function according to claim 3, characterized in that: A shock absorbing assembly (4) is provided between the second mounting groove (6) and the second handle (22), and the shock absorbing assembly (4) comprises a shock absorbing spring (41) and a damping buffer (42), wherein the shock absorbing spring (41) is sleeved and mounted on the second hollow mounting column (24); the damping buffer (42) is sleeved and mounted on the second hollow mounting column (24), and the damping buffer (42) is fitted with the bottom of the second mounting groove (6); one end of the shock absorbing spring (41) abuts against the second handle (22), and the other end of the shock absorbing spring (41) abuts against the damping buffer (42).

6. The wrench with shock absorbing function according to claim 3, characterized in that: The first hollow mounting column (23) and the second hollow mounting column (24) have the same outer diameter, and the bottom hole diameter of the first mounting groove (5) and the bottom hole diameter of the second mounting groove (6) are the same; the outer diameter of the first hollow mounting column (23) and the bottom hole diameter of the first mounting groove (5) are matched.

7. The wrench with shock absorbing function according to claim 1, characterized in that: The edge of the second handle (22) is provided with a plurality of strip-shaped limiting protrusions (7), and the edge of the first handle (21) is provided with a plurality of strip-shaped limiting grooves (8); the strip-shaped limiting protrusions (7) are arranged in the strip-shaped limiting grooves (8), and the shapes of the strip-shaped limiting protrusions (7) and the strip-shaped limiting grooves (8) are adapted to each other.

8. The wrench with shock absorbing function according to claim 1, characterized in that: A first arc-shaped mounting portion (9) is provided at the top edge of the first handle (21), and a second arc-shaped mounting portion (10) is provided at the top edge of the second handle (22); the head body (1) is a columnar body, and the outer contours of the first arc-shaped mounting portion (9) and the second arc-shaped mounting portion (10) match the outer contour of the head body (1).

9. The wrench with shock absorbing function according to claim 1, characterized in that: A plurality of locking screws (11) for fixing the first handle (21) and the second handle (22) are also provided between the first handle (21) and the second handle (22); the locking screws (11) are arranged on the edge of the handle assembly (2).

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