Intelligent electric screwdriver button rebounding mechanism
By employing a spring-loaded assembly with a limit groove and connecting post in the intelligent electric screwdriver, combined with a helical spring and locking assembly, the stability and reliability issues of the button spring-loaded structure are solved, realizing the linear movement and position locking of the button, improving operational stability and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-07
AI Technical Summary
Existing smart electric screwdriver button rebound structures are prone to spring deformation, uneven rebound force, button misalignment or jamming, affecting operational stability and reliability, and increasing maintenance costs.
The spring-loaded assembly, which uses a limit groove and a connecting post, combined with a helical spring and a locking assembly, ensures linear movement and position locking of the button, preventing offset and jamming, and extending its service life.
It improves operational stability and safety, extends the service life of the rebound mechanism, and reduces maintenance costs.
Smart Images

Figure CN224088911U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power tool technology, and in particular to an intelligent electric screwdriver button return mechanism. Background Technology
[0002] Intelligent electric screwdrivers are intelligent tools that are upgrades of traditional electric screwdrivers. They are widely used in fields such as electronic manufacturing, mechanical assembly, and furniture installation. By integrating technologies such as sensors, intelligent control systems, and data interaction, they achieve precise control, data monitoring, and efficiency optimization of the screw tightening process. Compared with traditional electric screwdrivers, they are more automated, intelligent, and digital.
[0003] The existing intelligent electric screwdriver button rebound structure has many shortcomings. Some rebound mechanisms use a simple spring design, which is prone to deformation after frequent use, resulting in weakened or uneven rebound force, affecting the user experience and work efficiency of operators. In addition, some structures have poor limiting effect, and the button is prone to displacement, jamming or even stuck during the rebound process, which not only reduces the reliability of the electric screwdriver, but also increases equipment maintenance costs and downtime. Utility Model Content
[0004] The purpose of this invention is to provide an intelligent electric screwdriver button return mechanism to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an intelligent electric screwdriver button return mechanism, comprising an electric screwdriver body, a screwdriver bit installed on the outer wall of the electric screwdriver body, a power cord provided on the outer wall of the electric screwdriver body, a return component provided inside the electric screwdriver body, and a locking component provided inside the electric screwdriver body;
[0006] The rebound assembly includes a mounting groove formed on the outer wall of the electric screwdriver body. A first limiting groove is symmetrically formed inside the mounting groove. A fixing shell is installed inside the electric screwdriver body. A second limiting groove is symmetrically formed on the inner wall of the fixing shell. A first button is slidably connected inside the mounting groove. The outer wall of the first button is slidably connected inside the first and second limiting grooves. A rubber pad is attached to the outer wall of the first button. A connecting post is symmetrically fixedly connected to the top of the inner wall of the first button. The connecting post is slidably connected inside the fixing shell. A connecting block is fixedly connected to the bottom of the connecting post. A helical spring is sleeved on the outer wall of the connecting post. A rubber buffer pad is fixedly connected to the bottom of the connecting block.
[0007] Preferably, the top of the outer wall of the helical spring is fixedly connected to the top of the inner wall of the first button, and the bottom of the outer wall of the helical spring is fixedly connected to the bottom of the inner wall of the fixed shell.
[0008] Preferably, the locking assembly includes an annular shell symmetrically and fixedly connected to the inner wall of the electric screwdriver body. The inner wall of the annular shell has a cylindrical groove and an L-shaped groove. A locking post is slidably connected inside the annular shell. A rotating knob is fixedly connected to the outer wall of the locking post. A locking block is fixedly connected to the outer wall of the locking post. The outer wall of the locking block engages with the inner wall of the L-shaped groove. An annular block is fixedly connected to the outer wall of the locking post. The outer wall of the annular block slides in contact with the inner wall of the cylindrical groove. A first spring is sleeved on the outer wall of the locking post.
[0009] Preferably, the outer wall of the connecting block is symmetrically provided with slots, and the inside of the slots engages with the outer wall of the locking post.
[0010] Preferably, one end of the first spring is fixedly connected to the outer wall of the annular block, and the other end of the first spring is fixedly connected to the inner wall of the annular shell.
[0011] Preferably, the L-shaped groove includes a vertical section and a horizontal section, the vertical section is connected to the horizontal section, and the locking block can slide along the vertical section and lock in the horizontal section.
[0012] Preferably, the outer wall of the rotary knob is provided with a wave groove, and the wave groove is distributed in a circular pattern.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, the cooperation between the first limiting groove, the second limiting groove and the connecting column inside the rebound assembly ensures that the first button maintains linear movement during the rebound process, effectively preventing deviation and jamming, and significantly improving operational stability. The two ends of the spiral spring are respectively fixed to the top of the inner wall of the first button and the bottom of the inner wall of the fixed shell, which disperses the spring force points, delays fatigue deformation, and extends the service life of the rebound assembly.
[0015] 2. In this utility model, the button position is locked by the engagement of the locking post and the locking slot. This prevents the electric screwdriver from locking the button when it is not in use or when it is stored, thus preventing accidental button activation, which could lead to power consumption or damage and improve operational safety. Furthermore, in the locked state, the helical spring remains in its reset state and is not subjected to force, which avoids elastic decay caused by long-term force and further improves the durability of the rebound mechanism. Attached Figure Description
[0016] Figure 1 This utility model provides a perspective view of the main structure of an intelligent electric screwdriver button rebound mechanism;
[0017] Figure 2 This utility model provides a schematic diagram of the main structure of an electric screwdriver with an intelligent electric screwdriver button return mechanism;
[0018] Figure 3This utility model provides a schematic diagram of the internal structure of the spring-loaded component of an intelligent electric screwdriver button spring-loaded mechanism;
[0019] Figure 4 A cross-sectional view of the spring-loaded component structure of an intelligent electric screwdriver button spring-loaded mechanism is provided for this utility model.
[0020] Figure 5 A cross-sectional view of the locking component structure of an intelligent electric screwdriver button return mechanism is provided for this utility model.
[0021] Figure 6 A cross-sectional view of the annular shell structure of an intelligent electric screwdriver button rebound mechanism is provided for this utility model.
[0022] Figure 7 This utility model presents a schematic diagram of the locking post structure of an intelligent electric screwdriver button rebound mechanism.
[0023] Legend:
[0024] 1. Electric screwdriver body; 2. Screwdriver bit; 3. Power cord; 4. Spring-loaded assembly; 401. Mounting slot; 402. First limiting slot; 403. Fixing shell; 404. Second limiting slot; 405. First button; 406. Rubber pad; 407. Connecting post; 408. Connecting block; 409. Helical spring; 410. Rubber buffer pad; 5. Locking assembly; 501. Annular shell; 502. Cylindrical groove; 503. L-shaped groove; 504. Locking post; 505. Rotating knob; 506. Locking block; 507. Annular block; 508. First spring; 509. Locking groove. Detailed Implementation
[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0027] Please see Figures 1-7 As shown, this utility model provides a technical solution: an intelligent electric screwdriver button return mechanism, including an electric screwdriver body 1, a screwdriver head 2 installed on the outer wall of the electric screwdriver body 1, a power cord 3 provided on the outer wall of the electric screwdriver body 1, a return component 4 provided inside the electric screwdriver body 1, and a locking component 5 provided inside the electric screwdriver body 1.
[0028] The rebound assembly 4 includes a mounting groove 401 formed on the outer wall of the electric screwdriver body 1. A first limiting groove 402 is symmetrically formed inside the mounting groove 401. A fixing shell 403 is installed inside the electric screwdriver body 1. A second limiting groove 404 is symmetrically formed on the inner wall of the fixing shell 403. A first button 405 is slidably connected inside the mounting groove 401. The outer wall of the first button 405 is slidably connected inside the first limiting groove 402 and the second limiting groove 404. A rubber pad 406 is attached to the outer wall of the first button 405. A connecting post 407 is symmetrically fixedly connected to the top of the inner wall of the first button 405. The connecting post 407 is slidably connected inside the fixing shell 403. A connecting block 408 is fixedly connected to the bottom of the connecting post 407. A coil spring 409 is sleeved on the outer wall of the connecting post 407. A rubber buffer pad 410 is fixedly connected to the bottom of the connecting block 408.
[0029] When the first button 405 is pressed, it slides within the mounting groove 401 under external force. Its outer wall moves along the first limiting groove 402 and the second limiting groove 404, causing the connecting column 407 to slide downward within the fixed shell 403, compressing the coil spring 409 to store elastic potential energy. When the button is released, the coil spring 409 releases its elastic potential energy, pushing the connecting column 407 and the first button 405 upward to reset. The rubber pad 406 improves pressing comfort, while the rubber buffer pad 410 cushions the button when it resets to the bottom, reducing impact. The mounting groove 401, the first limiting groove 402, and the second limiting groove 404 provide precise guidance for the first button 405, ensuring its smooth sliding. The coil spring 409 achieves automatic rebound, reducing manual reset operations. The rubber pad 406 and the rubber buffer pad 410 enhance the user experience, reduce component wear, and extend the service life of the mechanism.
[0030] More specific solutions, such as Figure 3 as well as Figure 4 The top of the outer wall of the helical spring 409 is fixedly connected to the top of the inner wall of the first button 405, and the bottom of the outer wall of the helical spring 409 is fixedly connected to the bottom of the inner wall of the fixed shell 403.
[0031] In use, the top of the helical spring 409 is fixed to the top of the inner wall of the first button 405, and the bottom is fixed to the bottom of the inner wall of the fixed shell 403. When the first button 405 is pressed, the helical spring 409 is compressed by force, and the elastic potential energy increases. After the external force disappears, the helical spring 409 recovers its deformation by its own elasticity, converting the elastic potential energy into kinetic energy, and pushing the first button 405 to reset. This fixing method enables the helical spring 409 to stably transmit the reset force, ensuring that the rebound process of the first button 405 is stable and reliable. The force and stroke of each rebound are basically consistent, ensuring the stable operation of the electric screwdriver button rebound function.
[0032] In a more preferred embodiment, such as Figure 5 , Figure 6 as well as Figure 7 The locking assembly 5 includes an annular shell 501 symmetrically fixedly connected to the inner wall of the electric screwdriver body 1. The inner wall of the annular shell 501 has a cylindrical groove 502 and an L-shaped groove 503. A locking post 504 is slidably connected inside the annular shell 501. A rotating knob 505 is fixedly connected to the outer wall of the locking post 504. A locking block 506 is fixedly connected to the outer wall of the locking post 504. The outer wall of the locking block 506 engages with the inner wall of the L-shaped groove 503. An annular block 507 is fixedly connected to the outer wall of the locking post 504. The outer wall of the annular block 507 slides in contact with the inner wall of the cylindrical groove 502. A first spring 508 is sleeved on the outer wall of the locking post 504.
[0033] In use, pressing the rotary knob 505 causes the locking block 506 to slide along the vertical section of the L-shaped groove 503. When the locking block 506 slides to the horizontal section of the L-shaped groove 503, under the elastic force of the first spring 508, the locking block 506 engages with the horizontal section, locking the locking post 504. At this time, the outer wall of the locking post 504 engages with the locking groove 509 on the connecting block 408, restricting the movement of the connecting block 408, thereby locking the first button 405 in the current position. Reversing the rotary knob 505 causes the locking block 506 to disengage from the horizontal section of the L-shaped groove 503, and the first spring 508 pushes the locking post 504 back to its original position. Reversing the rotary knob 505 releases the locking block 506. In addition to locking the first button 405, the annular block 507 slides within the cylindrical groove 502, serving as a guide and limiter to ensure the stable movement of the locking post 504. The first button 405 can be locked and unlocked simply by rotating the rotary knob 505, making operation convenient. The L-shaped groove 503 cooperates with the locking block 506, combined with the action of the first spring 508, ensuring a reliable locking effect. This meets the control requirements for the electric screwdriver button status in different working scenarios, increasing the flexibility and safety of the electric screwdriver. The annular block 507 and the cylindrical groove 502 ensure the stable movement of the locking post 504, improving the working reliability of the locking component 5.
[0034] In a more preferred embodiment, such as Figure 3 The outer wall of the connecting block 408 is symmetrically provided with slots 509, and the inside of the slots 509 is engaged with the outer wall of the locking post 504.
[0035] When in use, when the locking component 5 is working, pressing and rotating the rotary knob 505 causes the locking post 504 to slide and engage. The outer wall of the locking post 504 engages in the slot 509 of the connecting block 408, restricting the movement of the connecting block 408 and thus locking the first button 405. When the rotary knob 505 is rotated in the opposite direction to release the lock, the locking post 504 exits from the slot 509, and the first button 405 returns to its movable state. The engagement method between the slot 509 and the locking post 504 provides a reliable connection for the locking component 5 to lock the first button 405, ensuring that the button will not move arbitrarily due to external forces or other factors when the button position needs to be fixed, thus ensuring the stable operation of the electric screwdriver.
[0036] In a more preferred embodiment, such as Figure 5 , Figure 6 as well as Figure 7 One end of the first spring 508 is fixedly connected to the outer wall of the annular block 507, and the other end of the first spring 508 is fixedly connected to the inner wall of the annular shell 501.
[0037] In use, the first spring 508 is fixedly connected to the outer wall of the annular block 507 and to the inner wall of the annular shell 501, which can ensure the stability and connectivity of the first spring 508. Through spring compression and reset, the locking post 504 can be better engaged.
[0038] In a more preferred embodiment, such as Figure 6 as well as Figure 7 The L-shaped groove 503 includes a vertical section and a horizontal section, which are connected. The locking block 506 can slide along the vertical section and lock in the horizontal section.
[0039] In use, the vertical section of the L-shaped groove 503 provides a sliding channel for the locking block 506. When the locking block 506 slides along the vertical section to the entrance of the horizontal section, under the action of the first spring 508, the locking block 506 slides into the horizontal section to lock. In reverse operation, rotating the rotary knob 505 makes the locking block 506 overcome the elastic force of the first spring 508 and slide back from the horizontal section to the vertical section to release the lock. The unique vertical and horizontal section structure design of the L-shaped groove 503, together with the first spring 508, realizes the convenient locking and unlocking of the locking post 504. When locked, the locking block 506 is not easy to loosen in the horizontal section, ensuring a stable and reliable locking effect and improving the working performance of the locking component 5.
[0040] In a more preferred embodiment, such as Figure 5 as well as Figure 7 The outer wall of the rotary knob 505 is provided with a wave groove, which is distributed in a circular pattern.
[0041] When using the rotating knob 505 to operate the locking component 5, the wave groove on the outer wall increases the friction between the finger and the rotating knob 505, making it easier for the operator to apply force and control the rotation angle when rotating the rotating knob 505. The wave groove design optimizes the human-computer interaction experience, making the operation of the rotating knob 505 easier and more precise, avoiding operation errors caused by slipping hands, and improving the convenience and reliability of the operation of the locking component 5.
[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A smart electric screwdriver button return mechanism, comprising an electric screwdriver body (1), wherein a screwdriver bit (2) is mounted on the outer wall of the electric screwdriver body (1), and a power cord (3) is provided on the outer wall of the electric screwdriver body (1), characterized in that: The electric screwdriver body (1) is provided with a spring-back assembly (4) inside, and a locking assembly (5) is provided inside the electric screwdriver body (1); The spring-loaded assembly (4) includes a mounting groove (401) formed on the outer wall of the electric screwdriver body (1). A first limiting groove (402) is symmetrically formed inside the mounting groove (401). A fixing shell (403) is installed inside the electric screwdriver body (1). A second limiting groove (404) is symmetrically formed on the inner wall of the fixing shell (403). A first button (405) is slidably connected inside the mounting groove (401). The outer wall of the first button (405) is slidably connected to the first limiting groove (402) and the second limiting groove (404). Inside the groove (404), a rubber pad (406) is attached to the outer wall of the first button (405). A connecting post (407) is symmetrically fixed to the top of the inner wall of the first button (405). The connecting post (407) is slidably connected to the inside of the fixed shell (403). A connecting block (408) is fixedly connected to the bottom of the connecting post (407). A helical spring (409) is sleeved on the outer wall of the connecting post (407). A rubber buffer pad (410) is fixedly connected to the bottom of the connecting block (408).
2. The intelligent electric screwdriver button return mechanism according to claim 1, characterized in that: The top of the outer wall of the helical spring (409) is fixedly connected to the top of the inner wall of the first button (405), and the bottom of the outer wall of the helical spring (409) is fixedly connected to the bottom of the inner wall of the fixed shell (403).
3. The intelligent electric screwdriver button return mechanism according to claim 1, characterized in that: The locking assembly (5) includes an annular shell (501) symmetrically fixedly connected to the inner wall of the electric screwdriver body (1). The inner wall of the annular shell (501) is provided with a cylindrical groove (502) and an L-shaped groove (503). A locking post (504) is slidably connected inside the annular shell (501). A rotating knob (505) is fixedly connected to the outer wall of the locking post (504). A locking block (506) is fixedly connected to the outer wall of the locking post (504). The outer wall of the locking block (506) engages with the inner wall of the L-shaped groove (503). An annular block (507) is fixedly connected to the outer wall of the locking post (504). The outer wall of the annular block (507) slides in contact with the inner wall of the cylindrical groove (502). A first spring (508) is sleeved on the outer wall of the locking post (504).
4. The intelligent electric screwdriver button return mechanism according to claim 3, characterized in that: The outer wall of the connecting block (408) is symmetrically provided with slots (509), and the inside of the slots (509) is engaged with the outer wall of the locking post (504).
5. The intelligent electric screwdriver button return mechanism according to claim 3, characterized in that: One end of the first spring (508) is fixedly connected to the outer wall of the annular block (507), and the other end of the first spring (508) is fixedly connected to the inner wall of the annular shell (501).
6. The intelligent electric screwdriver button return mechanism according to claim 3, characterized in that: The L-shaped groove (503) includes a vertical section and a horizontal section, the vertical section is connected to the horizontal section, and the locking block (506) can slide along the vertical section and lock in the horizontal section.
7. The intelligent electric screwdriver button return mechanism according to claim 3, characterized in that: The outer wall of the rotary knob (505) is provided with a wave groove, which is distributed in a circular pattern.