Electrical equipment dismounting device
By designing a linkage device and an electric motor to drive the screwdriver head, the problem of time-consuming manual screw removal in electrical equipment maintenance was solved, achieving fast and efficient screw removal and assembly, and optimizing maintenance efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING MAISUI INFORMATION TECH CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-06-05
AI Technical Summary
In the existing technology, when repairing electrical equipment, manually removing screws is time-consuming, increases labor intensity, reduces maintenance efficiency, prolongs equipment downtime, and increases production losses.
The design incorporates a linkage mechanism consisting of a first rack, a second rack, a gear, and a handle, which, combined with an electric motor driving the screwdriver head, enables the rapid installation and removal of screws.
It improves the efficiency of screw disassembly and assembly, reduces manual labor intensity, shortens maintenance time, ensures equipment safety and stability, and enhances overall maintenance efficiency.
Smart Images

Figure CN224323033U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical equipment technology, and specifically relates to an electrical equipment disassembly and assembly device. Background Technology
[0002] In the maintenance and repair of electrical equipment, removing and installing screws in electrical cabinets using a screwdriver is a very common operation. Removing screws allows maintenance personnel to directly access various internal components of the equipment, making it easier to find the root cause of the fault.
[0003] However, currently, many screws need to be removed during electrical equipment maintenance. This is usually done manually. When using a screwdriver, manual operation requires constant turning, which increases labor intensity when dealing with a large number of screws, further reducing maintenance efficiency. Furthermore, manual operation has limited speed; handling a large number of screws is time-consuming, significantly reducing overall maintenance efficiency, extending equipment downtime, and increasing production losses for the company due to downtime.
[0004] To address this problem, this application proposes an electrical equipment disassembly and assembly device. Utility Model Content
[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an electrical equipment disassembly and assembly device. This device utilizes a linkage mechanism comprised of a first rack, a second rack, gears, and a handle. This mechanism drives a screwdriver head close to a screw, and then a motor rotates the screwdriver head to quickly disassemble and assemble the screw, improving efficiency and solving the problems mentioned in the background section.
[0006] To achieve the above objectives, this application specifically adopts the following technical solution:
[0007] An electrical equipment disassembly and assembly device includes an outer frame, a transparent cylinder with a concave structure fixedly connected to the front of the outer frame via a fixing rod, a drive box installed inside the outer frame, and a handle provided at the rear of the drive box; a gear is installed inside the drive box, and a first rack and a second rack are respectively meshed on both sides of the gear, the first rack and the second rack being diagonally distributed vertically; an inner frame is provided inside the transparent cylinder, an electric motor is installed inside the inner frame, and a screwdriver head is installed at the front of the inner frame; the handle is connected to the first rack via a first connecting rod, and the second rack is connected to the inner frame via a second connecting rod.
[0008] With the above technical solution, when the handle is pulled upwards, the handle drives the first rack to move upwards via the first connecting rod. During this process, the upward movement of the first rack drives the gear meshing with it to rotate, and the rotation of the gear pushes the second rack downwards, achieving synchronous movement of the first and second racks. Subsequently, the second rack pushes the inner frame to displace via the second connecting rod, causing the screwdriver head to gradually advance and contact the screw that needs to be removed or installed.
[0009] In a preferred embodiment, the output shaft of the motor is connected to the screwdriver head, a control switch is installed at the rear of the outer frame, and a finger groove is provided on the inner side of the handle.
[0010] Through the above technical solution, the finger groove can fit the shape of the fingers very well. When the operator grips the handle, the fingers can be naturally placed in the finger groove, making the contact between the hand and the handle more natural and comfortable.
[0011] In a preferred embodiment, a battery box is fixedly installed on the rear side of the motor, a battery is installed in the battery box, the battery is electrically connected to a control switch via a wire, and the control switch is electrically connected to the motor via a wire.
[0012] Through the above technical solution, the control switch can change the direction of current flow in the circuit. When the current flows into the motor in different directions through the wire, the motor can be reversed, which can meet the needs of unscrewing in the forward direction and tightening in the reverse direction when disassembling and assembling screws.
[0013] In a preferred embodiment, a bearing is installed in the middle of the gear, and a central shaft is installed inside the bearing. The upper and lower ends of the central shaft are fixedly connected to the inner wall of the drive box.
[0014] The above technical solution enables the outer side of the bearing to rotate while the gear rotates. The rotation of the bearing can effectively reduce frictional resistance, making the gear rotate more smoothly.
[0015] In a preferred embodiment, both the first rack and the second rack are provided with guide grooves, and guide plates are provided in the guide grooves. The upper and lower ends of the guide plates are fixedly connected to the inner wall of the drive box.
[0016] With the above technical solution, when the first rack and the second rack move, the guide groove will slide along the outside of the guide plate. This structure provides precise guidance for the movement of the first rack and the second rack, ensuring that the first rack and the second rack move linearly according to the set trajectory.
[0017] In a preferred embodiment, a negative pressure cylinder is installed on each side of the transparent cylinder. Both the transparent cylinder and the negative pressure cylinder have open front ends, and rubber pads are glued to the front surfaces of the transparent cylinder and the negative pressure cylinder.
[0018] With the above technical solution, when the screw is disassembled or assembled, the rubber pad will press tightly against the surface of the installation position. Because the rubber pad has good friction, it can not only keep the transparent cylinder and the negative pressure cylinder stable and not easy to slip when they are pressed against the installation position, but also effectively seal the gaps in contact with the surface of the installation position.
[0019] In a preferred embodiment, a piston is installed inside the negative pressure cylinder, the outer wall of the piston is in contact with the inner wall of the negative pressure cylinder, and a suction rod is fixedly connected to the rear end of the piston.
[0020] Through the above technical solution, when the piston moves backward, a negative pressure environment can be generated inside the negative pressure cylinder, so that the front end of the negative pressure cylinder is adsorbed onto the surface of the installation position.
[0021] In a preferred embodiment, a set of side sliding grooves are respectively opened on both sides of the outer frame, and a synchronous sliding rod is provided in the side sliding groove. The rear end of the suction rod passes through the negative pressure cylinder and is fixedly connected to the front end of the synchronous sliding rod. The rear end of the synchronous sliding rod is fixedly connected to the handle.
[0022] With the above technical solution, when the handle is moved up, the suction rod will move synchronously through the synchronous slide rod. The upper end of the synchronous slide rod will slide along the side slide groove path, and the suction rod will then drive the piston to move backward inside the negative pressure cylinder.
[0023] After adopting the above technical solution, the beneficial effects of this utility model are:
[0024] 1. In screw removal operations, a linkage device consisting of a first rack, a second rack, a gear, and a handle is designed. When performing the operation, the operator simply holds the handle, ensuring the screwdriver bit is accurately aligned with the screw. Then, by pulling the handle upwards, the ingenious transmission mechanism between the first rack, gear, and second rack synchronously and smoothly drives the screwdriver bit closer to the screw. Subsequently, the electric motor rotates the screwdriver bit for quick screw removal. The entire operation is simple and easy to learn, significantly improving removal efficiency and greatly optimizing the performance and experience of screw removal operations.
[0025] 2. By designing a transparent cylinder, all debris generated during disassembly or installation falls into the transparent cylinder, effectively preventing it from scattering on electrical components or splashing everywhere, thus strongly ensuring the safety and stability of the equipment and the cleanliness and orderliness of the working environment.
[0026] 3. By incorporating a rubber pad, negative pressure cylinder, piston, suction rod, and synchronous slide bar, the rubber pad, with its excellent frictional properties, effectively prevents slippage of the transparent cylinder during screw removal and installation, providing a solid guarantee for operational accuracy and stability. When the handle is pulled, it moves the piston within the negative pressure cylinder, creating a negative pressure environment that allows the cylinder to adhere tightly to the area around the removal point. This further enhances the stability of the negative pressure cylinder during operation, reducing operational errors that may be caused by shaking or displacement, and ensuring that the entire screw removal and installation process can be carried out safely, efficiently, and smoothly. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the overall structure of an electrical equipment disassembly and assembly device according to the present invention.
[0029] Figure 2 This is a structural schematic diagram of an electrical equipment disassembly and assembly device according to this utility model from another perspective.
[0030] Figure 3 This is a top view of the structure of an electrical equipment disassembly and assembly device according to the present invention.
[0031] Figure 4 for Figure 3 Enlarged schematic diagram of part A.
[0032] Figure 5 for Figure 3 Enlarged schematic diagram of part B.
[0033] In the diagram, 1. Outer frame; 2. Control switch; 3. Drive box; 4. Handle; 5. Synchronous slide rod; 6. Side slide groove; 7. Transparent cylinder; 8. Rubber pad; 9. Fixing rod; 10. Negative pressure cylinder; 101. Suction rod; 102. Piston; 11. First rack; 12. Second rack; 13. Guide groove; 14. Guide plate; 15. Gear; 16. Bearing; 17. Central shaft; 18. Second connecting rod; 181. First connecting rod; 19. Inner frame; 20. Battery box; 21. Motor; 22. Screwdriver head. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Please see Figures 1 to 5 An electrical equipment disassembly and assembly device includes an outer frame 1, a transparent cylinder 7 with a concave structure fixedly connected to the front of the outer frame 1 via a fixing rod 9, a drive box 3 installed inside the outer frame 1, and a handle 4 provided at the rear of the drive box 3; a gear 15 is installed inside the drive box 3, and a first rack 11 and a second rack 12 are respectively meshed on both sides of the gear 15, the first rack 11 and the second rack 12 are distributed diagonally from top to bottom, an inner frame 19 is provided inside the transparent cylinder 7, an electric motor 21 is installed inside the inner frame 19, and a screwdriver head 22 is installed at the front of the inner frame 19; the handle 4 is connected to the first rack 11 via a first connecting rod 181, and the second rack 12 is connected to the inner frame 19 via a second connecting rod 18.
[0036] When handle 4 is pulled upwards, handle 4 drives the first rack 11 to move upwards via the first connecting rod 181. During this process, the upward movement of the first rack 11 drives the gear 15 meshing with it to rotate, and the rotation of gear 15 pushes the second rack 12 downwards, achieving synchronous movement of the first rack 11 and the second rack 12. Subsequently, the second rack 12 pushes the inner frame 19 to displace via the second connecting rod 18, causing the screwdriver head 22 to gradually advance and contact the screw position that needs to be removed or installed.
[0037] The output shaft of the motor 21 is connected to the screwdriver head 22. A control switch 2 is installed at the rear of the outer frame 1, and a finger groove is provided on the inside of the handle 4.
[0038] The finger grooves conform well to the shape of the fingers. When the operator grips handle 4, the fingers can be naturally placed in the finger grooves, making the contact between the hand and handle 4 more natural and comfortable.
[0039] A battery box 20 is fixedly installed on the rear side of the motor 21. A battery is installed inside the battery box 20. The battery is electrically connected to the control switch 2 through a wire. The control switch 2 is electrically connected to the motor 21 through a wire.
[0040] The control switch 2 can change the direction of the circuit current. When the current flows into the motor 21 in different directions through the wire, the motor 21 can be rotated in both directions, which can meet the needs of unscrewing in the forward direction and tightening in the reverse direction when disassembling and assembling screws.
[0041] A bearing 16 is installed in the middle of the gear 15, and a central shaft 17 is installed inside the bearing 16. The upper and lower ends of the central shaft 17 are fixedly connected to the inner wall of the drive box 3.
[0042] As gear 15 rotates, it can drive the outer side of bearing 16 to rotate. The rotation of bearing 16 can effectively reduce frictional resistance, making gear 15 rotate more smoothly.
[0043] Both the first rack 11 and the second rack 12 are provided with guide grooves 13, and guide plates 14 are provided in the guide grooves 13. The upper and lower ends of the guide plates 14 are fixedly connected to the inner wall of the drive box 3.
[0044] When the first rack 11 and the second rack 12 move, they will cause the guide groove 13 to slide along the outside of the guide plate 14. This structure provides precise guidance for the movement of the first rack 11 and the second rack 12, ensuring that the first rack 11 and the second rack 12 move linearly along the set trajectory.
[0045] A negative pressure cylinder 10 is installed on each side of the transparent cylinder 7. Both the transparent cylinder 7 and the negative pressure cylinder 10 have open front ends. Rubber pads 8 are glued to the front surface of the transparent cylinder 7 and the front surface of the negative pressure cylinder 10.
[0046] When the screws are removed or installed, the rubber pad 8 will press tightly against the surface of the installation position. Because the rubber pad 8 has good friction, it can not only keep the transparent cylinder 7 and the negative pressure cylinder 10 stable and not easy to slip when they are pressed against the installation position, but also effectively seal the gaps in contact with the surface of the installation position.
[0047] A piston 102 is installed inside the negative pressure cylinder 10. The outer wall of the piston 102 is in contact with the inner wall of the negative pressure cylinder 10, and a suction rod 101 is fixedly connected to the rear end of the piston 102.
[0048] When the piston 102 moves backward, it can generate a negative pressure environment inside the negative pressure cylinder 10, thereby causing the front end of the negative pressure cylinder 102 to adhere to the surface of the installation position.
[0049] A set of side sliding grooves 6 are provided on both sides of the outer frame 1. A synchronous sliding rod 5 is provided in the side sliding groove 6. The rear end of the suction rod 101 passes through the negative pressure cylinder 10 and is fixedly connected to the front end of the synchronous sliding rod 5. The rear end of the synchronous sliding rod 5 is fixedly connected to the handle 4.
[0050] As the handle 4 moves upward, it will drive the suction rod 101 to move synchronously through the synchronous slide rod 5. The upper end of the synchronous slide rod 5 will slide along the path of the side slide groove 6, and the suction rod 101 will then drive the piston 102 to move backward inside the negative pressure cylinder 10.
[0051] In practical use, the working principle of this utility model is as follows:
[0052] In use, the user picks up the device using the outer frame 1 and handle 4, and places the transparent tube 7 over the outside of the screw removal / removal location of the electrical equipment. Simultaneously, the user observes through the transparent tube 7 to ensure the screwdriver head 22 is accurately aligned with the screw removal / removal location. Next, the user pulls the handle 4 upwards. The handle 4, via the first connecting rod 181, drives the first rack 11 upwards. During this process, the upward movement of the first rack 11 causes the meshing gear 15 to rotate, and the rotation of the gear 15 pushes the second rack 12 downwards, achieving synchronous movement of the first rack 11 and the second rack 12. Subsequently, the second rack 12, via the second connecting rod 18, pushes the inner frame 19 to displace, causing the screwdriver head 22 to gradually advance and contact the screw to be removed / removed. During this advancement, the operator can clearly observe the forward movement of the screwdriver head 22 through the transparent tube 7. Once the screwdriver head 22 contacts the screw, the user starts the motor 21 via the control switch. The motor 21 then drives the screwdriver head 22 to rotate via the output shaft, thus commencing the screw removal / removal operation. The entire operation process is simple and easy to learn, and significantly improves the efficiency of disassembly and assembly, optimizing the performance and experience of screw disassembly and assembly. During the entire screw disassembly and assembly process, the generated debris is effectively blocked by the transparent cylinder 7, causing it to fall entirely inside the transparent cylinder 7, effectively preventing debris from flying out and threatening the operator's safety or accidentally falling into electrical components and causing malfunctions;
[0053] Before screw removal and installation, the rubber pad 8 will tightly press against the surface of the installation position. Due to the good friction of the rubber pad 8, it not only keeps the transparent cylinder 7 and the negative pressure cylinder 10 stable and prevents them from slipping when pressed against the installation position, but also effectively seals the gaps in contact with the surface of the installation position. Furthermore, as the handle 4 moves upward, the synchronous slide rod 5 will drive the suction rod 101 to move synchronously. The suction rod 101 will then drive the piston 102 to move backward inside the negative pressure cylinder 10, creating a negative pressure environment inside the negative pressure cylinder 10, thereby adhering it to the surface of the installation position and further significantly improving the stability of the transparent cylinder 7 during use.
[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An electrical equipment disassembly and assembly device, comprising an outer frame (1), characterized in that: A transparent tube (7) with a concave structure is fixedly connected to the front of the outer frame (1) by a fixing rod (9). A drive box (3) is installed inside the outer frame (1), and a handle (4) is provided at the rear of the drive box (3). The drive box (3) is equipped with a gear (15), and a first rack (11) and a second rack (12) are respectively meshed on both sides of the gear (15). The first rack (11) and the second rack (12) are distributed diagonally from top to bottom. The transparent tube (7) is provided with an inner frame (19), and an electric motor (21) is installed inside the inner frame (19). A screwdriver head (22) is installed in front of the inner frame (19). The handle (4) is connected to the first rack (11) via the first link (181), and the second rack (12) is connected to the inner frame (19) via the second link (18).
2. The electrical equipment disassembly and assembly device as described in claim 1, characterized in that: The output shaft of the motor (21) is connected to the screwdriver head (22), a control switch (2) is installed at the rear of the outer frame (1), and a finger groove is provided on the inner side of the handle (4).
3. The electrical equipment disassembly and assembly device as described in claim 2, characterized in that: A battery box (20) is fixedly installed on the rear side of the motor (21). A battery is installed in the battery box (20). The battery is electrically connected to the control switch (2) through a wire. The control switch (2) is electrically connected to the motor (21) through a wire.
4. The electrical equipment disassembly and assembly device as described in claim 1, characterized in that: A bearing (16) is installed in the middle of the gear (15), and a central shaft (17) is installed inside the bearing (16). The upper and lower ends of the central shaft (17) are fixedly connected to the inner wall of the drive box (3).
5. The electrical equipment disassembly and assembly device as described in claim 1, characterized in that: The first rack (11) and the second rack (12) are provided with guide grooves (13), and guide plates (14) are provided in the guide grooves (13). The upper and lower ends of the guide plates (14) are fixedly connected to the inner wall of the drive box (3).
6. The electrical equipment disassembly and assembly device as described in claim 1, characterized in that: A negative pressure cylinder (10) is installed on each side of the transparent cylinder (7). Both the transparent cylinder (7) and the negative pressure cylinder (10) have open front ends. Rubber pads (8) are glued to the front surface of the transparent cylinder (7) and the front surface of the negative pressure cylinder (10).
7. The electrical equipment disassembly and assembly device as described in claim 6, characterized in that: A piston (102) is installed inside the negative pressure cylinder (10). The outer wall of the piston (102) is in contact with the inner wall of the negative pressure cylinder (10). A suction rod (101) is fixedly connected to the rear end of the piston (102).
8. The electrical equipment disassembly and assembly device as described in claim 7, characterized in that: The outer frame (1) has a set of side sliding grooves (6) on both sides. The side sliding grooves (6) are equipped with synchronous sliding rods (5). The rear end of the suction rod (101) passes through the negative pressure cylinder (10) and is fixedly connected to the front end of the synchronous sliding rod (5). The rear end of the synchronous sliding rod (5) is fixedly connected to the handle (4).