Electric tool handle with double damping structures

By incorporating a spring-loaded shock-absorbing structure and an organ-type shock-absorbing component into the handle of power tools, the resonance problem caused by power tool vibration is solved, thereby improving operational stability and work quality.

CN223617662UActive Publication Date: 2025-12-02YONGKANG INGHAN ELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202423276505.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-02
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The vibrations generated by power tools during operation can cause resonance when the operator holds the tool handle, affecting operational stability and efficiency.

Method used

It adopts a dual shock absorption structure, including a spring shock absorption structure consisting of a spring and a telescopic guide shaft between the first housing and the drive component, and an accordion-type shock absorption component between the handle and the second housing, which absorbs and disperses vibration energy by elastic deformation.

Benefits of technology

It effectively reduces resonance, improves operational stability and work quality, enhances handle grip stability, and reduces the impact of vibration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric tool handle with a double damping structure, which relates to the technical field of electric tools, and comprises an electric tool shell, the electric tool shell consists of a handle, a first shell and a second shell, the front side of the upper end of the handle is connected with the first shell, and the front side of the lower end of the handle is connected with the second shell. The front side of the bottom end of the handle is connected with the second shell. The driving part is arranged at the upper end of the handle, the handle is connected with the first shell through the driving part, a mounting opening is formed in the end, close to the driving part, of the first shell, and a spring damping structure composed of a spring and a telescopic movable guide shaft is arranged between the first shell and the driving part; a double-damping structure composed of the first shell, the second shell and the organ type damping assembly arranged between the second shell and the handle can further conduct damping on the electric tool, resonance can be reduced when a worker holds the handle, and the worker can conveniently and stably hold the handle to conduct operation.
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Description

Technical Field

[0001] This utility model relates to the field of power tool technology, specifically to a power tool handle with a double shock absorption structure. Background Technology

[0002] Power tools are a general term for tools and equipment powered by DC or AC motors. They can convert electrical energy into mechanical energy to perform various tasks and operations. Power tools are characterized by being lightweight, portable, highly efficient, and energy-saving. They are widely used in various sectors of the national economy, such as engineering construction, decoration, metal processing, and wood processing, and can significantly reduce labor intensity and improve work efficiency.

[0003] Because power tools generate strong vibrations during operation, these vibrations can cause resonance when the operator holds the tool handle, resulting in synchronized vibrations in the operator's hand. This makes it difficult for the operator to maintain a stable grip on the handle, leading to low operating efficiency and poor work quality. Therefore, we propose a power tool handle with a dual shock absorption structure to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a power tool handle with a dual shock absorption structure to solve the problem mentioned in the background art that the power tool generates strong vibrations during operation, which causes resonance when the operator holds the tool handle, causing the operator's hand to vibrate synchronously. This makes it difficult for the operator to hold the handle stably, resulting in low operating efficiency and poor work quality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a power tool handle with a double shock absorption structure, comprising a power tool housing, wherein the power tool housing is composed of a handle, a first outer shell, and a second outer shell, wherein the upper front side of the handle is connected to the first outer shell, and the lower front side of the handle is connected to the second outer shell.

[0006] Also includes:

[0007] A drive unit is located at the upper end of the handle, and the handle is connected to the first housing through the drive unit. The first housing has an installation port at one end near the drive unit. A connecting sleeve is fixedly engaged inside the installation port. A guide shaft is movably engaged inside the connecting sleeve. A bolt is connected to the other end of the guide shaft. The bolt is threadedly connected to the guide shaft, and the bolt fixes the other end of the guide shaft to the front end of the drive unit. The bottom front end of the handle is connected to the second housing through an accordion-type shock absorption assembly.

[0008] Preferably, a spring is sleeved on the outside of the guide shaft, and the two ends of the spring rest between the bolt and the connecting sleeve, respectively.

[0009] Preferably, the accordion-style shock absorber assembly consists of an outer frame and accordion pleats, with the accordion pleats located between the outer frame.

[0010] Preferably, both ends of the outer frame are provided with mating grooves, and the two ends of the outer frame are engaged and fixed to the bottom front end of the handle and the rear end of the second outer shell through the mating grooves.

[0011] Preferably, the bottom of the handle is connected to a power source.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] A dual-damping structure, consisting of a spring-driven damping structure (comprising a spring and a retractable guide shaft between the first housing and the drive component) and an accordion-style damping component (comprising an accordion-style damping assembly between the second housing and the handle), further reduces vibration in power tools. This reduces resonance when the operator grips the handle, allowing for a more stable grip and operation. The spring-driven damping structure absorbs and dissipates vibration energy through its elastic deformation, while the accordion-style damping assembly absorbs and disperses energy through deformation, thus reducing the impact. Specifically, upon impact, the accordion-style damping structure folds or expands like the bellows of an organ, converting the impact energy into strain energy within the structure and dispersing this energy through material elasticity and structural design. Attached Figure Description

[0014] Figure 1 This is a side view of the overall structure of this utility model;

[0015] Figure 2 This is a front view schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the spring damping component of this utility model;

[0017] Figure 4 This is a schematic diagram of the bellows-type shock absorber component of this utility model;

[0018] In the diagram: 1. Handle handle; 2. Drive unit; 3. First housing; 4. Second housing; 5. Power supply; 6. Bellows-style shock absorber assembly; 7. Outer frame; 8. Bellows pleats; 9. Connecting groove; 10. Mounting port; 11. Connecting sleeve; 12. Spring; 13. Bolt; 14. Guide shaft; 15. Power tool housing. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] This invention provides a power tool handle with a dual shock absorption structure. The device includes a power tool housing 15, which comprises a handle 1, a first outer shell 3, and a second outer shell 4. The upper front end of the handle 1 is connected to the first outer shell 3, and the lower front end of the handle 1 is connected to the second outer shell 4. This invention primarily addresses the problem that power tools generate strong vibrations during operation. These vibrations cause resonance when the operator holds the tool handle, resulting in synchronized hand vibrations. This makes it difficult for the operator to maintain a stable grip on the handle, leading to low operating efficiency and poor work quality.

[0021] For the device provided by this utility model, please refer to Figure 1-4 The following is a detailed introduction.

[0022] The driving component 2 is located at the upper end of the handle 1, and the handle 1 is connected to the first housing 3 via the driving component 2. The first housing 3 has a mounting port 10 near the driving component 2. A connecting sleeve 11 is fixedly engaged inside the mounting port 10, and a guide shaft 14 is movably engaged inside the connecting sleeve 11. A bolt 13 is connected to the other end of the guide shaft 14, and the bolt 13 is threadedly connected to the guide shaft 14, fixing the other end of the guide shaft 14 to the front end of the driving component 2. The bottom front end of the handle 1 is connected to the second housing 4 via an accordion-type shock absorber 6. A spring 12 is sleeved on the outside of the guide shaft 14, and the two ends of the spring 12 respectively push against... Between bolt 13 and connecting sleeve 11, spring 12 is used to cause guide shaft 14 to rebound, thereby reducing resonance. The accordion-type shock absorber 6 consists of outer frame 7 and accordion pleats 8. The accordion pleats 8 are located between outer frame 7. When impacted, these pleats can fold and expand like bellows of an accordion, thereby absorbing and dispersing impact energy. Both ends of outer frame 7 are provided with mating grooves 9, and both ends of outer frame 7 are fixed to the bottom front end of handle handle 1 and the rear end of second housing 4 through mating grooves 9, which facilitates fixing accordion-type shock absorber 6 between handle handle 1 and second housing 4. The bottom of handle handle 1 is connected to power supply 5, which continuously provides power to handle.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A power tool handle with a double shock absorption structure, comprising a power tool housing (15), the power tool housing (15) being composed of a handle (1), a first outer shell (3) and a second outer shell (4), the upper front side of the handle (1) being connected to the first outer shell (3), and the lower front side of the handle (1) being connected to the second outer shell (4); Its features are: Also includes: A drive unit (2) is located at the upper end of the handle (1), and the handle (1) is connected to the first housing (3) through the drive unit (2). The first housing (3) has an installation port (10) at one end near the drive unit (2). A connecting sleeve (11) is fixedly engaged inside the installation port (10). A guide shaft (14) is movably engaged inside the connecting sleeve (11). A bolt (13) is connected to the other end of the guide shaft (14). The bolt (13) is threadedly connected to the guide shaft (14), and the bolt (13) fixes the other end of the guide shaft (14) to the front end of the drive unit (2). The bottom front end of the handle (1) is connected to the second housing (4) through an accordion-type shock absorber assembly (6).

2. The power tool handle with a dual shock absorption structure according to claim 1, characterized in that: A spring (12) is sleeved on the outside of the guide shaft (14), and the two ends of the spring (12) are respectively pressed between the bolt (13) and the connecting sleeve (11).

3. The power tool handle with a dual shock absorption structure according to claim 1, characterized in that: The accordion-style shock absorber assembly (6) consists of an outer frame (7) and accordion pleats (8), with the accordion pleats (8) located between the outer frame (7).

4. A power tool handle with a dual shock absorption structure according to claim 3, characterized in that: Both ends of the outer frame (7) are provided with mating grooves (9), and the two ends of the outer frame (7) are engaged and fixed to the bottom front end of the handle (1) and the rear end of the second outer shell (4) through the mating grooves (9).

5. A power tool handle with a dual shock absorption structure according to claim 1, characterized in that: The bottom of the handle (1) is connected to a power source (5).