Large-torsion electric screwdriver unloading device
By employing a multi-stage buffer structure and an ergonomically designed unloading device, the problem of imperfect unloading mechanism in high-torque electric screwdrivers has been solved, achieving uniform and rapid torque release, reducing arm fatigue, and improving operating comfort and work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-21
AI Technical Summary
The existing high-torque electric screwdriver unloading device has an imperfect unloading mechanism, which cannot effectively reduce the burden on the arm. Moreover, the design ignores ergonomics, causing the operator's arms, wrists and other key parts to bear greater pressure and torque when using it for a long time, increasing fatigue.
It adopts a multi-stage buffer structure, combined with the first and second damping telescopic rods and spring force relief mechanism, along with an adjustable force relief handle and a handle that conforms to the natural curve of the hand. Combined with ergonomic design, it enhances the force relief effect and absorbs vibration energy through the buffer sleeve.
It effectively disperses and weakens vibration energy, reduces the stress on the arm, lowers wrist fatigue, improves operational comfort and work efficiency, and reduces the impact of vibration on the arm.
Smart Images
Figure CN224144520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric screwdriver unloading technology, and in particular to a high-torque electric screwdriver unloading device. Background Technology
[0002] In the field of modern industrial automation, electric screwdrivers have become an important tool on assembly lines due to their high efficiency and precision. They are especially indispensable in situations requiring high torque. However, with the improvement of work efficiency, the problem of arm fatigue caused by operators using high torque electric screwdrivers for a long time has become increasingly prominent. This not only affects work efficiency but may also pose a potential threat to the health of workers. Among them, the inadequate structural design of the force relief device of high torque electric screwdrivers is one of the key factors leading to this problem.
[0003] Most existing force-relieving devices use a simple spring buffer structure. Although this design can absorb some vibration energy to a certain extent, its force-relieving effect is limited for the strong vibrations generated by high torque operations, and it cannot effectively reduce the burden on the arms. Secondly, some force-relieving devices ignore ergonomic principles in their design, which means that when operators use them for a long time, key parts such as arms and wrists still have to bear a lot of pressure and torque, increasing fatigue. Utility Model Content
[0004] The present invention proposes a high-torque electric screwdriver unloading device, which solves the problems of imperfect unloading mechanism and insufficient ergonomic considerations in existing high-torque electric screwdriver unloading devices.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A high-torque electric screwdriver force-relieving device includes a mounting cylinder. Slides are provided on both sides of the interior of the mounting cylinder, and two sets of clamping plates are provided on the sides of the slides. Slider blocks matching the slides are movably connected to the sides of the clamping plates. A mounting groove is provided on the side of the clamping plates inside the mounting cylinder, and a force-relieving mechanism is provided inside the mounting groove. The electric screwdriver body is clamped inside the clamping plates. A mounting hole matching the electric screwdriver body is provided on the side of one end of the mounting cylinder, and a connecting and fixing mechanism is provided on the side of the interior of the other end of the mounting cylinder. An adjustable force-relieving handle is provided at the bottom of one end of the mounting cylinder, and a handle conforming to the natural curve of the hand is provided at the bottom of the other end of the mounting cylinder.
[0007] Preferably, the force-relieving mechanism includes a first damping telescopic rod and a first spring, and multiple sets of first damping telescopic rods are provided inside the mounting groove. The first damping telescopic rods are connected to the clamping plate, and a first spring is provided on the outside of the first damping telescopic rods to form a force-relieving structure.
[0008] Preferably, the clamping plate is provided with a limiting groove inside, and the mounting cylinder is provided with multiple sets of heat dissipation holes on the outside.
[0009] Preferably, the connecting and fixing mechanism includes a clamping cover plate, an electric telescopic rod, a top plate, a second damping telescopic rod, a second spring, a push plate, and short bolts. The clamping cover plate is installed on the outside of the mounting cylinder by the short bolts. An electric telescopic rod is provided on the side of the clamping cover plate, and a top plate is provided on the side of the electric telescopic rod.
[0010] Preferably, the top plate has multiple sets of second damping telescopic rods on its side, and the second damping telescopic rods are connected to the push plate. A second spring is provided on the outside of the second damping telescopic rod to form a connection and fixing structure.
[0011] Preferably, a sliding groove is provided at the bottom of one end of the mounting cylinder, and a movable block matching the sliding groove is provided at the top of the unloading handle. Multiple sets of threaded holes are provided inside the sliding groove, and the movable block is connected to the threaded holes by long bolts for a limiting connection.
[0012] Preferably, both the unloading handle and the outer side of the handle are provided with a buffer sleeve, and a Bluetooth switch is provided on the upper side of the handle.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This high-torque electric screwdriver force-relieving device has two sets of clamps on the side of the slide. The clamps are equipped with a first damping telescopic rod and a first spring on the side, and a second damping telescopic rod and a second spring inside the connecting and fixing mechanism to relieve force. It adopts a multi-stage buffer structure. The buffer structure combining springs and damping telescopic rods can gradually absorb energy, effectively disperse and weaken vibration energy, reduce the stress on the arm, and enable the electric screwdriver to release torque evenly and quickly during the force-relieving process.
[0015] 2. The bottom of the mounting cylinder is equipped with an adjustable relief handle and a lever. The force on the arm can be relieved by the relief handle and lever, reducing wrist fatigue. It can also be operated with one hand, making it convenient to operate. In addition, the outer side of the relief handle and lever is equipped with a buffer sleeve, which effectively absorbs the vibration energy generated by the reaction force of the relief handle and lever, reducing the impact of vibration on the arm and making the relief mechanism more perfect.
[0016] 3. The other end of the mounting cylinder has a handle at the bottom that conforms to the natural curve of the hand. Based on ergonomic principles, the handle shape is designed to fit the natural curve of the hand. At the same time, the cushioning sleeve is made of non-slip and shock-absorbing materials to improve grip comfort and stability, further reducing the extra burden on the wrist and arm. Secondly, the adjustable force relief handle improves user comfort and can be adjusted according to personal usage habits. A Bluetooth switch is set on the side above the handle, which facilitates the connection between the force relief device and the electric screwdriver body, making operation and use more convenient. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.
[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model.
[0020] Figure 4 This is a schematic diagram of the connection and fixing mechanism of this utility model.
[0021] The following are the labels in the diagram: 1. Mounting cylinder; 2. Slide rail; 3. Clamping plate; 4. Slider; 5. Mounting groove; 6. Electric screwdriver body; 7. Mounting hole; 9. Unloading handle; 10. Handle; 11. First damping telescopic rod; 12. First spring; 13. Limiting groove; 14. Heat dissipation hole; 15. Clamping cover plate; 16. Electric telescopic rod; 17. Top plate; 18. Second damping telescopic rod; 19. Second spring; 20. Push plate; 21. Short bolt; 22. Slide groove; 23. Movable block; 24. Threaded hole; 25. Long bolt; 26. Buffer sleeve; 27. Bluetooth switch. Detailed Implementation
[0022] 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.
[0023] Reference Figures 1-4This utility model provides a technical solution: a high-torque electric screwdriver force relief device, including a mounting cylinder 1, with slides 2 on both sides inside the mounting cylinder 1, and two sets of clamping plates 3 on the sides of the slides 2. Slider blocks 4 matching the slides 2 are movably connected to the sides of the clamping plates 3. The sides of the clamping plates 3 are provided with mounting grooves 5 inside the mounting cylinder 1. A force relief mechanism is provided inside the mounting grooves 5. The electric screwdriver body 6 is clamped inside the clamping plates 3. A mounting hole 7 matching the electric screwdriver body 6 is provided on the side of one end of the mounting cylinder 1, and a connecting and fixing mechanism is provided on the side of the inside of the other end of the mounting cylinder 1. An adjustable force relief handle 9 is provided at the bottom of one end of the mounting cylinder 1, and a handle 10 conforming to the natural curve of the hand is provided at the bottom of the other end of the mounting cylinder 1.
[0024] Reference Figure 3 , Figure 4 The connecting and fixing mechanism includes a clamping cover plate 15, an electric telescopic rod 16, a top plate 17, a second damping telescopic rod 18, a second spring 19, a push plate 20, and a short bolt 21. The clamping cover plate 15 is installed on the outside of the mounting cylinder 1 by the short bolt 21. An electric telescopic rod 16 is provided on the side of the clamping cover plate 15, and a top plate 17 is provided on the side of the electric telescopic rod 16. Multiple sets of second damping telescopic rods 18 are provided on the side of the top plate 17, and the second damping telescopic rods 18 are connected to the push plate 20. A second spring 19 is provided on the outside of the second damping telescopic rods 18 to form a connecting and fixing structure. A sliding groove 22 is provided at the bottom of one end of the mounting cylinder 1, and a movable block 23 matching the sliding groove 22 is provided at the top of the unloading handle 9. Multiple sets of threaded holes 24 are provided inside the sliding groove 22, and the movable block 23 is connected to the threaded hole 24 by a long bolt 25 for a limiting connection.
[0025] In specific implementation, a high-torque electric screwdriver load-relieving device, when installing the electric screwdriver body 6, firstly, by turning the short bolt 21 counterclockwise, remove the clamping cover plate 15. Then, place the electric screwdriver body 6 into the limiting groove 13 inside the clamping plate 3, and simultaneously, turn the short bolt 21 clockwise to fix the clamping cover plate 15 tightly. Next, activate the electric telescopic rod 16, which extends the top plate 17 and push plate 20 forward. Through the elasticity of the second damping telescopic rod 18 and the second spring 19 inside the top plate 17 and push plate 20... This process securely fixes the electric screwdriver body 6 inside the mounting cylinder 1. Simultaneously, the unloading handle 9 can be adjusted according to individual user habits. First, unscrew the long bolt 25, then manually push the unloading handle 9 back and forth inside the slide groove 22. After adjusting to a suitable position, screw the long bolt 25 into the threaded hole 24 to fix the unloading handle 9. This operation improves user comfort, facilitates the installation of the unloading device and the electric screwdriver body 6, and helps achieve a more efficient and comfortable unloading experience.
[0026] Reference Figure 1 , Figure 3The unloading mechanism includes a first damping telescopic rod 11 and a first spring 12. Multiple sets of first damping telescopic rods 11 are provided inside the mounting groove 5. The first damping telescopic rods 11 are connected to the clamping plate 3. The first spring 12 is provided on the outside of the first damping telescopic rods 11 to form an unloading structure. The clamping plate 3 is provided with a limit groove 13. Multiple sets of heat dissipation holes 14 are provided on the outside of the mounting cylinder 1. The heat dissipation holes 14 can effectively dissipate heat for the electric screwdriver body 6 inside the mounting cylinder 1, ensuring the safe and stable operation of the electric screwdriver body 6 and extending its service life. Both the unloading handle 9 and the handle 10 are provided with a buffer sleeve 26 on the outside. A Bluetooth switch 27 is provided on the upper side of the handle 10.
[0027] In practical implementation, when the high-torque electric screwdriver unloading device is unloading force, the Bluetooth switch 27 is first connected to the electric screwdriver body 6. The operator can use the electric screwdriver body 6 by pressing the Bluetooth switch 27, which improves the convenience of use. When the electric screwdriver body 6 receives torque vibration, the clamping plate 3 moves up and down inside the slide 2. At this time, multiple sets of first damping telescopic rods 11 and first springs 12 inside the mounting groove 5 gradually absorb energy. Then, the second damping telescopic rod 18 and second spring 19 between the top plate 17 and the push plate 20 disperse and weaken the vibration energy. At the same time, the unloading handle 9 and the handle 10 can further unload the force on the arm and reduce wrist fatigue. Finally, the buffer sleeve 26 effectively absorbs the vibration energy generated by the reaction force of the unloading handle 9 and the handle 10, reducing the impact of vibration on the arm. Through the above operations, the electric screwdriver can release torque evenly and quickly during the unloading process, reducing arm fatigue and improving work efficiency.
[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A large torque electric screwdriver force releasing device, comprising a mounting cylinder (1), characterized in that, The mounting cylinder (1) has slides (2) on both sides inside, and two sets of clamps (3) are provided on the sides of the slides (2). The clamps (3) are provided on both sides with sliders (4) that match the slides (2) in a movable connection. The clamps (3) are provided on the sides inside the mounting cylinder (1) with mounting grooves (5). The mounting grooves (5) are provided with unloading mechanisms. The clamps (3) hold the electric screwdriver body (6). The mounting cylinder (1) at one end has mounting holes (7) that match the electric screwdriver body (6). The mounting cylinder (1) at the other end has a connecting and fixing mechanism on the inside side. The mounting cylinder (1) at one end has an adjustable unloading handle (9) at the bottom. The mounting cylinder (1) at the other end has a handle (10) that conforms to the natural curve of the hand at the bottom.
2. The large torque screwdriver force relief device of claim 1, wherein, The unloading mechanism includes a first damping telescopic rod (11) and a first spring (12), and multiple sets of first damping telescopic rods (11) are provided inside the mounting groove (5). The first damping telescopic rods (11) are connected to the clamp plate (3), and the first spring (12) is provided on the outside of the first damping telescopic rods (11) to form an unloading structure.
3. The large torque screwdriver force relief device of claim 1, wherein, The clamp (3) is provided with a limiting groove (13) inside, and the mounting cylinder (1) is provided with multiple sets of heat dissipation holes (14) on the outside.
4. The large torque screwdriver force relief device of claim 1, wherein, The connecting and fixing mechanism includes a clamping cover plate (15), an electric telescopic rod (16), a top plate (17), a second damping telescopic rod (18), a second spring (19), a push plate (20), and a short bolt (21). The clamping cover plate (15) is installed on the outside of the mounting cylinder (1) by the short bolt (21). The clamping cover plate (15) is provided with an electric telescopic rod (16) on its side, and the electric telescopic rod (16) is provided with a top plate (17) on its side.
5. The large torque screwdriver force relief device of claim 4, wherein, The top plate (17) has multiple sets of second damping telescopic rods (18) on its side, and the second damping telescopic rods (18) are connected to the push plate (20). The second damping telescopic rods (18) are provided with a second spring (19) on their outer side to form a connection and fixing structure.
6. The large torque screwdriver force relief device of claim 1, wherein, The bottom of the mounting cylinder (1) at one end is provided with a sliding groove (22), and the top of the unloading handle (9) is provided with a movable block (23) that matches the sliding groove (22). The sliding groove (22) is provided with multiple sets of threaded holes (24), and the movable block (23) is connected to the threaded hole (24) by a long bolt (25) in a limiting connection.
7. The large torque screwdriver force relief device of claim 1, wherein, Both the unloading handle (9) and the handle (10) are provided with a buffer sleeve (26) on the outside, and a Bluetooth switch (27) is provided on the upper side of the handle (10).