Electric tool damping structure

By incorporating soft rubber pads and shock-absorbing grooves between the assembly blocks of power tools, the problem of vibration transmission to the handle is solved, resulting in improved shock absorption and battery pack durability.

CN224144584UActive Publication Date: 2026-04-21JIANGSU HEHUI POWER TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU HEHUI POWER TOOLS CO LTD
Filing Date
2025-03-31
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Vibrations generated during the use of power tools are transmitted to the battery pack through the handle, affecting user comfort and shortening the battery pack's lifespan.

Method used

The upper and lower assembly blocks are cushioned by soft rubber pads. Combined with the assembly components, snap-fit ​​blocks and shock-absorbing groove structure, the elastic material reduces vibration transmission and improves assembly stability and comfort.

Benefits of technology

It effectively reduces vibration at the handle, extends the battery pack's lifespan, and improves user comfort and battery pack durability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an electric tool shock absorption structure, which relates to the technical field of electric tools, and comprises an upper assembling block and a lower assembling block, the lower assembling block is provided with a handle, the electric tool shock absorption structure also comprises a soft rubber cushion block, the soft rubber cushion block is arranged between the upper assembling block and the lower assembling block, an assembling component is arranged between the upper assembling block and the lower assembling block, and the assembling component is provided with a damping component. The assembling assembly is used for assembling the upper assembling block and the lower assembling block. The battery pack has the effects of reducing vibration at the handle and prolonging the service life of the battery pack.
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Description

Technical Field

[0001] This utility model relates to the field of power tool technology, and in particular to a shock-absorbing structure for power tools. Background Technology

[0002] Power tools are handheld tools powered by small-power motors or electromagnets, which drive the working head through a transmission mechanism. Examples include electric hammers, electric picks, electric drills, and handheld electric saws. Power tools are widely used in various fields of production and daily life.

[0003] Many power tools come into contact with other objects during use, generating continuous vibrations. These vibrations are transmitted through the power tool's housing to the handle. On one hand, the vibrations affect the user's grip; on the other hand, the power tool's battery pack is usually located inside the handle, and the continuous vibrations cause the battery pack to vibrate and collide with the inside of the handle, affecting the battery pack's lifespan. Utility Model Content

[0004] To reduce vibration at the handle and improve battery pack life, this application provides a vibration damping structure for power tools.

[0005] The electric tool vibration damping structure provided in this application adopts the following technical solution:

[0006] A shock-absorbing structure for power tools includes an upper assembly block and a lower assembly block. The lower assembly block is provided with a handle and also includes a soft rubber pad block disposed between the upper assembly block and the lower assembly block. An assembly component is disposed between the upper assembly block and the lower assembly block, and the assembly component is used to assemble the upper assembly block and the lower assembly block.

[0007] By adopting the above technical solution, the assembly components are assembled into an upper assembly block and a lower assembly block. At the same time, the upper assembly block and the lower assembly block are connected by a soft rubber pad. The soft rubber pad has a certain elasticity, which provides a certain buffer for the vibration generated by the upper assembly block during use, thereby reducing the vibration amplitude of the handle of the lower assembly block, improving the comfort of use, reducing the possibility of damage caused by vibration and collision of the battery pack, and improving the durability of the battery pack.

[0008] Preferably, the lower assembly block is further provided with a snap-fit ​​block, and the soft rubber pad block is provided with a snap-fit ​​groove, into which the snap-fit ​​block is inserted.

[0009] By adopting the above technical solution, the snap-fit ​​block is inserted into the snap-fit ​​groove on the soft rubber pad block, which increases the contact area between the lower assembly block and the soft rubber pad block and improves the stability of the assembly.

[0010] Preferably, the lower assembly block is provided with an installation groove, the snap-fit ​​block is disposed in the installation groove, and the soft rubber pad is inserted into the installation groove.

[0011] By adopting the above technical solution, the installation groove is set to further increase the contact area between the soft rubber pad and the lower assembly block, which facilitates the installation of the soft rubber pad, improves the stability of the assembly, and enhances the shock absorption effect.

[0012] Preferably, the handle is provided with an auxiliary groove that communicates with the mounting groove, and the soft rubber pad is provided with an auxiliary block, which is inserted into the auxiliary groove.

[0013] By adopting the above technical solution, the auxiliary block is set on the handle and has a certain degree of elasticity, which further reduces shock to the user's grip area and improves the comfort when holding the handle.

[0014] Preferably, the auxiliary block is provided with anti-slip texture.

[0015] By adopting the above technical solution, anti-slip texture is set to increase the friction of the auxiliary block surface, making it easier for users to grip the handle, thereby facilitating the use of power tools.

[0016] Preferably, the assembly component includes an assembly plate and an assembly rod, the lower assembly block is provided with an assembly groove, the assembly plate is disposed on both sides of the upper assembly block and inserted into the assembly groove, the assembly plate is provided with an assembly hole, the assembly rod is disposed in the assembly groove and inserted into the assembly hole, and the assembly plate abuts against the soft rubber pad.

[0017] By adopting the above technical solution, the assembly plate is squeezed and pressed into the assembly groove during assembly, so that the assembly rod is inserted into the assembly hole, thereby completing the assembly. At the same time, the assembly plate abuts against the soft rubber pad, reducing the vibration amplitude of the assembly plate during use, thereby reducing the vibration transmitted to the handle.

[0018] Preferably, the assembly plate is provided with a first shock-absorbing groove communicating with the assembly hole on the side near the inner wall of the assembly groove, and a first shock-absorbing pad is provided in the first shock-absorbing groove, the first shock-absorbing pad abutting against the inner wall of the assembly groove.

[0019] By adopting the above technical solution, the inner wall of the assembly groove contacts the first elastic shock-absorbing pad without directly contacting the assembly plate, thereby achieving shock absorption through the elastic first shock-absorbing pad and further improving the shock absorption effect.

[0020] Preferably, the shock-absorbing pad is provided with shock-absorbing holes, the assembly rod passes through the shock-absorbing holes, and the assembly rod is provided with a plurality of abutting blocks, the abutting blocks abutting against the inner wall of the shock-absorbing holes.

[0021] By adopting the above technical solution, the assembly rod passes through the shock-absorbing hole and abuts against the first shock-absorbing pad through the abutting block, thereby increasing the contact area between the assembly rod and the first shock-absorbing pad, improving the stability of the assembly rod passing through the shock-absorbing hole, and thus improving the stability of the assembly. At the same time, the abutting block contacts the elastic first shock-absorbing pad, thereby improving the shock absorption effect.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting up an upper assembly block, a lower assembly block, a handle, a soft rubber pad, and assembly components, the upper and lower assembly blocks are assembled by the assembly components. At the same time, the upper and lower assembly blocks are separated by a soft rubber pad placed between them. The soft rubber pad is elastic and reduces the vibration generated by the upper assembly block during use, thereby reducing the vibration of the handle on the lower assembly block during use, improving the comfort of use, and reducing the possibility of damage caused by battery pack vibration and collision, thus improving the durability of the battery pack.

[0024] 2. By setting up snap-fit ​​blocks, snap-fit ​​slots, and mounting slots, during assembly, the snap-fit ​​blocks on the lower assembly block are inserted into the snap-fit ​​slots on the soft rubber pad, and at the same time, the soft rubber pad is inserted into the mounting slot on the lower assembly block. This increases the contact area between the lower assembly block and the soft rubber pad, improves the stability of the assembly, facilitates the installation of the soft rubber pad, and at the same time, by increasing the area of ​​the soft rubber, improves the comfort when holding it and enhances the shock absorption effect.

[0025] 3. By setting up an assembly slot, assembly plate, assembly hole, assembly rod, first shock-absorbing groove, and first shock-absorbing pad, during assembly, the assembly plate on the upper assembly block is squeezed to insert the assembly plate into the assembly slot of the lower assembly block, and the assembly rod is inserted into the assembly hole of the assembly plate. At the same time, the first shock-absorbing pad in the first shock-absorbing groove abuts against the inner wall of the assembly slot, and the assembly plate abuts against the soft rubber pad, thus completing the installation. The contact between the upper and lower assembly blocks is through the contact between the soft rubber pad and the first shock-absorbing pad, thereby ensuring the shock absorption effect, reducing vibration at the handle, reducing the possibility of damage caused by battery pack vibration and collision, and improving the durability of the battery pack. Attached Figure Description

[0026] Figure 1 This is an overall schematic diagram of a power tool vibration damping structure provided in an embodiment of this application.

[0027] Figure 2 It is a cross-sectional view used to illustrate the structure of assembled components.

[0028] Figure 3 yes Figure 2 A magnified view of region A in the middle.

[0029] Explanation of reference numerals in the attached drawings: 1. Upper assembly block; 2. Lower assembly block; 21. Handle; 211. Auxiliary groove; 22. Mounting groove; 221. Snap-fit ​​block; 23. Assembly groove; 3. Soft rubber pad; 31. Snap-fit ​​groove; 32. Auxiliary block; 321. Anti-slip texture; 4. Assembly component; 41. Assembly plate; 411. Assembly hole; 412. First shock-absorbing groove; 413. First shock-absorbing pad; 414. Second shock-absorbing groove; 415. Second shock-absorbing pad; 416. Shock-absorbing hole; 42. Assembly insert rod; 421. Abutment block; 5. Locking block; 51. Locking groove; 52. Locking rod; 53. Locking spring. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0031] This application discloses a vibration damping structure for power tools. (Refer to...) Figure 1 and Figure 2 The device includes a soft rubber pad 3, an upper assembly block 1, and a lower assembly block 2. A handle 21 is integrally fixed to the bottom wall of the lower assembly block 2 for gripping. An assembly component 4 is positioned between the upper assembly block 1 and the lower assembly block 2 for assembling them. The soft rubber pad 3 is made of elastic rubber or silicone and is adhesively fixed to the bottom wall of the upper assembly block 1 and connected to the lower assembly block 2, thus connecting the upper and lower assembly blocks 1 and 2. By connecting the upper and lower assembly blocks 1 and 2 with the soft rubber pad 3, the vibration transmitted from the upper assembly block 1 to the handle 21 during use is reduced, improving user comfort and reducing the possibility of damage caused by battery pack vibration and impact, thereby improving the battery pack's durability.

[0032] For ease of assembly, refer to Figure 1 and Figure 2 The lower assembly block 2 has an assembly groove 23 in the middle of its top wall. The assembly component 4 includes an assembly plate 41 and an assembly rod 42. The assembly rod 42 is fixedly mounted on the side walls of the assembly groove 23, and the assembly plate 41 is fixedly mounted on the bottom walls of the upper assembly block 1. The assembly plate 41 is made of plastic and has a certain degree of elasticity to be squeezed. The assembly plate 41 has an assembly hole 411 through it. The assembly plate 41 is inserted into the assembly groove 23 and abuts against the soft rubber pad 3. At the same time, the assembly rod 42 passes through the assembly hole 411. The upper assembly block 1 has a cavity inside. During assembly, the side wall of the upper assembly block 1 is squeezed to make the assembly plate 41 tilt inward and insert it into the assembly groove 23. The assembly plate 41 returns to its original position, allowing the assembly rod 42 to pass through the assembly hole 411, thus completing the assembly. The operation is simple and convenient, and assembly is easy.

[0033] To improve the shock absorption effect, refer to Figure 2 and Figure 3The assembly plate 41 has a first shock-absorbing groove 412 communicating with the assembly hole 411, located near the inner wall of the assembly groove 23. A first shock-absorbing pad 413 made of elastic rubber is glued and fixed within the first shock-absorbing groove 412. The sidewall of the first shock-absorbing pad 413 extends out of the first shock-absorbing groove 412 and abuts against the inner wall of the assembly groove 23. The first shock-absorbing pad 413 has a shock-absorbing hole 416 communicating with the assembly hole 411. The assembly rod 42 passes through the shock-absorbing hole 416. Multiple abutment blocks 421 are fixedly installed on the sidewall of the assembly rod 42, abutting against the inner wall of the shock-absorbing hole 416. The abutment blocks 421 improve the stability of the assembly rod 42 passing through the assembly hole 411. Simultaneously, after assembly, the soft rubber pad 3 and the first shock-absorbing pad 413 complete the connection and contact between the upper assembly block 1 and the lower assembly block 2, ensuring sufficient elastic cushioning and thus improving the shock absorption effect.

[0034] To improve assembly stability, refer to Figure 2 and Figure 3 A locking block 5 is fixedly installed on the inner wall of the assembly groove 23. A second shock-absorbing groove 414, communicating with the assembly hole 411, is provided around the side of the assembly plate 41 away from the inner wall of the assembly groove 23. A second shock-absorbing pad 415, made of annular elastic rubber material, is adapted and fixedly installed within the second shock-absorbing groove 414. The side wall of the second shock-absorbing pad 415 extends out of the second shock-absorbing groove 414. A locking groove 51 is provided on the side wall of the locking block 5. A locking rod 52 is adapted and slidably installed within the locking groove 51. A locking spring 53, fixedly connected to the locking rod 52, is fixedly installed on the inner wall of the locking groove 51. The locking block 5 extends out of the locking groove 51 and abuts against the second shock-absorbing pad 415. The distance between the locking block 5 and the inner wall of the assembly groove 23 is greater than the distance between the outer walls of the first shock-absorbing pad 413 and the second shock-absorbing pad 415. During assembly, pressing the upper assembly block 1 causes the assembly plate 41 to tilt inward and insert into the gap between the inner wall of the assembly groove 23 and the locking rod 52. This pushes the locking rod 52 to compress the locking spring 53. After installing the upper assembly block 1 onto the lower assembly block 2, releasing the upper assembly block 1 causes the locking spring 53 to return to its original position, pushing the locking rod 52 against the second shock-absorbing pad 415. This pushes the assembly plate 41, causing the assembly insert rod 42 to insert into the assembly hole 411 and the first shock-absorbing pad 413 to abut against the inner wall of the assembly groove 23. The locking rod 52 abutting against the second shock-absorbing pad 415 improves the stability of the assembly.

[0035] For user convenience, please refer to Figure 1 and Figure 2The lower assembly block 2 has a ring of snap-fit ​​blocks 221 fixedly arranged around the assembly groove 23 on its top wall. The bottom wall of the soft rubber pad block 3 has a snap-fit ​​groove 31, and the snap-fit ​​blocks 221 are adapted to be inserted into the snap-fit ​​groove 31. The outer surface of the lower assembly block 2 has an installation groove 22, in which the snap-fit ​​blocks 221 are placed. The soft rubber pad block 3 is adapted to be inserted into the installation groove 22 and fixedly connected to the inner wall of the installation groove 22 by adhesive. The handle 21 has an auxiliary groove 211 communicating with the installation groove 22. The soft rubber pad block 3 has an integrally fixed auxiliary block 32 made of soft rubber, which is inserted into the auxiliary groove 211 and fixedly connected to the inner wall of the auxiliary groove 211 by adhesive. The surface of the auxiliary block 32 has anti-slip texture 321. The snap-fit ​​blocks 221 inserted into the snap-fit ​​groove 31 improve the stability of the assembly, while the auxiliary block 32 provides a grip for the user, improving the comfort and convenience of use. In another embodiment, a structure similar to an auxiliary groove 211 and a soft rubber auxiliary block 32 can be provided on the upper assembly block 1. The soft auxiliary block 32 allows the user to hold or press the upper assembly block 1 during use, thereby improving the stability of use.

[0036] The implementation principle of the shock absorption structure for a power tool in this application embodiment is as follows: After assembly, the power tool is connected to the upper assembly block 1 and the lower assembly block 2 through a soft rubber pad 3. In the structure of the assembly component 4, the two sides of the assembly plate 41 on the upper assembly block 1 are respectively abutted against the inner wall of the assembly groove 23 and the locking rod 52 by the first shock-absorbing pad 413 and the second shock-absorbing pad 415, so that the upper assembly block 1 and the lower assembly block 2 are connected and abutted by an elastic material. During use, the upper assembly block 1 will vibrate due to contact with other objects during electric construction. The elasticity of the soft rubber pad 3, the first shock-absorbing pad 413 and the second shock-absorbing pad 415 will reduce the vibration, thereby reducing the vibration amplitude of the handle 21 of the lower assembly block 2, improving the comfort of use, and reducing the possibility of damage to the battery pack due to vibration and collision, thus improving the durability of the battery pack.

[0037] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electric tool damping structure comprising an upper assembly block (1) and a lower assembly block (2), the lower assembly block (2) being provided with a handle (21), characterized in that: It also includes a soft rubber pad (3), which is disposed between the upper assembly block (1) and the lower assembly block (2). An assembly component (4) is disposed between the upper assembly block (1) and the lower assembly block (2), and the assembly component (4) is used to assemble the upper assembly block (1) and the lower assembly block (2).

2. The vibration damping structure of an electric power tool according to claim 1, characterized by: The lower assembly block (2) is further provided with a snap-fit ​​block (221), and the soft rubber pad block (3) is provided with a snap-fit ​​groove (31), and the snap-fit ​​block (221) is inserted into the snap-fit ​​groove (31).

3. The vibration damping structure of an electric power tool according to claim 2, characterized by: The lower assembly block (2) is provided with an installation groove (22), the snap-fit ​​block (221) is disposed in the installation groove (22), and the soft rubber pad block (3) is inserted into the installation groove (22).

4. The vibration damping structure of an electric power tool according to claim 3, wherein: The handle (21) is provided with an auxiliary groove (211) that communicates with the mounting groove (22), and the soft rubber pad (3) is provided with an auxiliary block (32), which is inserted into the auxiliary groove (211).

5. The vibration damping structure of an electric power tool according to claim 4, wherein: The auxiliary block (32) is provided with anti-slip texture (321).

6. The vibration damping structure of an electric power tool according to claim 1, wherein: The assembly component (4) includes an assembly plate (41) and an assembly rod (42). The lower assembly block (2) is provided with an assembly groove (23). The assembly plate (41) is disposed on both sides of the upper assembly block (1) and inserted into the assembly groove (23). The assembly plate (41) is provided with an assembly hole (411). The assembly rod (42) is disposed in the assembly groove (23) and inserted into the assembly hole (411). The assembly plate (41) abuts against the soft rubber pad (3).

7. The vibration damping structure of an electric power tool according to claim 6, wherein: The assembly plate (41) is provided with a first shock-absorbing groove (412) communicating with the assembly hole (411) on the side of the inner wall of the assembly groove (23). A first shock-absorbing pad (413) is provided in the first shock-absorbing groove (412), and the first shock-absorbing pad (413) abuts against the inner wall of the assembly groove (23).

8. The vibration damping structure of an electric power tool according to claim 7, characterized by: The first shock-absorbing pad (413) is provided with a shock-absorbing hole (416), the assembly rod (42) passes through the shock-absorbing hole (416), the assembly rod (42) is provided with a plurality of abutting blocks (421), and the abutting blocks (421) abut against the inner wall of the shock-absorbing hole (416).