Automatic take-up and pay-off device for power cable

Abstract

The utility model discloses an automatic power cable winding and unwinding device, and relates to the technical field of power construction equipment, the automatic power cable winding and unwinding device comprises a rack, a winding mechanism, a cable arranging mechanism and a controller, the winding mechanism comprises a first driving part and a winding part, and the fixed end of the first driving part is fixedly connected with the rack; the driving end of the first driving piece is in transmission connection with the winding piece to drive the winding piece to rotate, and the winding piece is used for winding and connecting a power cable to the winding piece; the cable arranging mechanism comprises a second driving piece and a guide block, the fixed end of the second driving piece is fixedly connected with the rack, the driving end of the second driving piece is in transmission connection with the guide block to drive the guide block to swing in a reciprocating mode in the length direction of the winding piece, and the guide block is provided with a guide hole used for allowing the power cable to penetrate through; the device has the advantages that the structure is simple, the use is convenient, the working efficiency is effectively improved, and the operation safety is effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of power construction equipment technology, and in particular to an automatic cable reeling and unloading device. Background Technology

[0002] In power construction and maintenance work, grounding short-circuit lines are a primary safety tool for electrical workers. They are crucial safety measures taken after a power outage and serve as a lifeline for power workers. Connecting a grounding wire acts as a safety barrier, effectively preventing electrostatic induction shock from nearby live conductors or ensuring safety in case of accidental circuit breaker activation.

[0003] With the rapid development of my country's power industry, various power outage and restoration operations are frequent, and the existing methods of connecting and disconnecting grounding short-circuit lines have exposed many problems: on the one hand, connecting and disconnecting grounding short-circuit lines requires two people to work together, which consumes a lot of time, is labor-intensive and has low work efficiency; on the other hand, grounding short-circuit lines are easily damaged during manual connection, which increases equipment maintenance costs and safety hazards.

[0004] Therefore, there is an urgent need for a high-voltage grounding wire take-up and take-down device that can effectively solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic cable reeling and unloading device to solve the problems existing in the prior art. It has a simple structure, is easy to use, effectively improves work efficiency, and effectively ensures operational safety.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides an automatic power cable winding and unwinding device, comprising: a frame, a winding mechanism, a cable laying mechanism, and a controller. The winding mechanism includes a first driving member and a winding member. The fixed end of the first driving member is fixedly connected to the frame, and the driving end of the first driving member is convexly connected to the winding member to drive the winding member to rotate. The winding member is used to wind and connect the power cable to the winding member. The cable laying mechanism includes a second driving member and a guide block. The fixed end of the second driving member is fixedly connected to the frame, and the driving end of the second driving member is convexly connected to the guide block to drive the guide block to reciprocate in the length direction of the winding member. The guide block is provided with a guide hole for the power cable to pass through. The controller is electrically connected to the first driving member and the second driving member.

[0008] Preferably, the first driving component includes a drive motor, a transmission assembly, and a rotating gripper. The fixed end of the drive motor is fixedly connected to the frame, and the output shaft of the drive motor is drivenly connected to the rotating gripper through the transmission assembly. The rotating gripper is used to detachably connect to one end of the winding member.

[0009] Preferably, the frame includes a base and a first housing, the top of the first housing has a first opening, the transmission assembly includes a main synchronous pulley, a driven synchronous pulley, a synchronous belt and a reducer, the drive motor, the main synchronous pulley, the driven synchronous pulley, the synchronous belt and the reducer are disposed in the first housing, the main synchronous pulley is fixedly connected to the output shaft of the drive motor, the main synchronous pulley and the driven synchronous pulley are connected by the synchronous belt, the driven synchronous pulley is connected by the reducer to the rotating gripper, and the rotating gripper passes through the first opening and is connected to the winding member.

[0010] Preferably, the winding member includes at least three winding rods and a limiting member. Each winding rod is arranged vertically and its bottom end is detachably connected to the rotating gripper. The limiting member is fixedly connected to the top end of each winding rod to prevent the power cable from detaching from the winding rod.

[0011] Preferably, the frame further includes a bearing housing and a bearing, the bearing housing is installed in the first opening, the bearing is installed in the bearing housing, and the inner ring of the bearing is fixedly connected to the rotating jaw.

[0012] Preferably, the frame further includes a limiting plate and multiple limiting wheels. The limiting plate is fixedly connected to the top of the first housing, and one end of the limiting plate is provided with an arc-shaped notch. The arc-shaped notch is used to allow the winding component to pass through. Each of the limiting wheels is rotatably connected to the arc-shaped notch and is rolledly connected to the winding component.

[0013] Preferably, the frame further includes a second housing, which is fixedly connected to the base. The top of the second housing has a second opening, and the bottom of the second housing has a mounting base. The second driving component includes a fixed plate, a stepper motor, an electric cylinder, and a movable plate. The bottom of the fixed plate has a hinge seat, which is connected to the mounting base via a fixed pin. The fixed ends of the stepper motor and the electric cylinder are both fixedly connected to the fixed plate. The stepper motor is driven by the electric cylinder. The output end of the electric cylinder is fixedly connected to the movable plate, and the guide block is fixedly connected to the top of the movable plate.

[0014] Preferably, the frame further includes multiple guide sleeves, and the cable routing mechanism further includes multiple guide rods and multiple fixing screws. The guide sleeves are fixedly connected to the second opening, the top end of the guide rod is connected to the movable plate through the fixing screws, and the bottom end of the guide rod passes through the corresponding guide sleeve to guide the movement direction of the movable plate.

[0015] Preferably, the frame further includes a rotating shaft, two shaft plates, two traveling wheels, support legs, and a telescopic handle. The two shaft plates are respectively fixedly connected to both sides of one end of the base. The two ends of the rotating shaft pass through the two shaft plates and are fixedly connected to the shaft plates. The two ends of the rotating shaft are respectively rotatably connected to one of the traveling wheels. The telescopic handle is fixedly connected to the side of the second housing away from the first housing. The support leg is fixedly connected to the bottom of the bottom plate away from the traveling wheel.

[0016] Preferably, the controller includes a push-button switch, a control circuit main board, and a power supply. The control circuit main board and the power supply are disposed in the first housing, and the push-button switch is disposed on the top of the second housing. The push-button switch, the drive motor, and the stepper motor are all electrically connected to the control circuit main board and the power supply.

[0017] The present invention achieves the following technical advantages over the prior art:

[0018] This utility model provides an automatic power cable winding and unwinding device. By setting up a winding mechanism and a cable laying mechanism, it can realize the automatic winding and unwinding of power cables, reducing manual operation and improving work efficiency. The controller is electrically connected to two drive components, which facilitates unified control of the entire device, realizes automated operation, has a simple structure, is easy to use, effectively improves work efficiency, and effectively ensures operational safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0020] Figure 1 A schematic diagram of the automatic cable retraction and deployment device provided by this utility model;

[0021] Figure 2 A front view of the automatic cable retraction device provided by this utility model;

[0022] Figure 3 A schematic diagram of the frame in the automatic power cable take-up and untake-down device provided by this utility model;

[0023] Figure 4 A schematic diagram of the first driving component in the winding structure of the automatic power cable winding and unwinding device provided by this utility model;

[0024] Figure 5 A bottom view of the fixing base in the winding structure of the automatic power cable winding and unwinding device provided by this utility model;

[0025] Figure 6 A schematic diagram of the cable laying mechanism in the automatic power cable reeling and unloading device provided by this utility model;

[0026] In the diagram: 1. Frame; 11. First housing; 12. Second housing; 13. Bearing seat; 14. Limiting plate; 15. Limiting wheel; 16. Guide sleeve; 17. Fixing pin; 18. Base; 181. Rotating shaft; 182. Shaft plate; 183. Traveling wheel; 184. Support leg; 185. Telescopic handle; 186. Mudguard; 2. Winding mechanism; 21. Drive motor; 22. Main synchronous pulley; 23. Slave synchronous pulley; 24. Synchronous belt; 25. Reducer; 26. Rotating gripper; 27. Winding component; 28. Fixed seat; 3. Cable laying mechanism; 31. Guide block; 32. Locking pin; 33. Fixing plate; 34. Hinge seat; 35. Stepper motor; 36. Electric cylinder; 37. Movable plate; 38. Guide rod; 39. Fixing screw; 4. Controller; 41. Push button switch; 5. Power cable. Detailed Implementation

[0027] 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.

[0028] The purpose of this utility model is to provide an automatic cable reeling and unloading device to solve the problems existing in the prior art. It has a simple structure, is easy to use, effectively improves work efficiency, and effectively ensures operational safety.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] This utility model provides an automatic cable retraction and extension device, such as... Figures 1-6As shown, the device includes: a frame 1, a winding mechanism 2, a cable laying mechanism 3, and a controller 4. The winding mechanism 2 includes a first drive component and a winding component 27. The fixed end of the first drive component is fixedly connected to the frame 1, and the driving end of the first drive component is driven by the winding component 27 to drive the winding component 27 to rotate. The winding component 27 is used to wind and connect the power cable 5. The cable laying mechanism 3 includes a second drive component and a guide block 31. The fixed end of the second drive component is fixedly connected to the frame 1, and the driving end of the second drive component is driven by the guide block 31 to drive the guide block 31 to reciprocate along the length of the winding component 27. The guide block 31 is provided with a guide hole for the power cable 5 to pass through. The controller 4 is electrically connected to the first and second drive components. By setting up the winding mechanism 2 and the cable laying mechanism 3, the automatic winding and unwinding of the power cable 5 can be realized, reducing manual operation and improving work efficiency. The controller 4 is electrically connected to the two drive components, which facilitates unified control of the entire device and realizes automated operation.

[0031] In a preferred embodiment, the first driving component includes a drive motor 21, a transmission assembly, and a rotating gripper 26. The fixed end of the drive motor 21 is fixedly connected to the frame 1, and the output shaft of the drive motor 21 is driven by the rotating gripper 26 through the transmission assembly. The rotating gripper 26 is detachably connected to one end of the winding member 27. The drive motor 21 serves as a power source, providing stable power output. The detachable connection between the rotating gripper 26 and the winding member 27 facilitates the replacement of winding members 27 of different specifications to meet the winding and unwinding needs of power cables 5 of different lengths and diameters, enhancing the versatility of the device.

[0032] In a preferred embodiment, the frame 1 includes a base 18 and a first housing 11. The top of the first housing 11 has a first opening. The transmission assembly includes a main synchronous pulley 22, a driven synchronous pulley 23, a synchronous belt 24, and a reducer 25. The drive motor 21, main synchronous pulley 22, driven synchronous pulley 23, synchronous belt 24, and reducer 25 are disposed within the first housing 11. The main synchronous pulley 22 is fixedly connected to the output shaft of the drive motor 21. The main synchronous pulley 22 and the driven synchronous pulley 23 are connected via the synchronous belt 24. The driven synchronous pulley 23 is connected to the rotating gripper 26 via the reducer. The rotating gripper 26 passes through the first opening and is connected to the winding member 27. Disposing of the transmission assembly within the first housing 11 provides protection, preventing dust and debris from entering the transmission components and affecting their normal operation, while also reducing accidental damage to the transmission components from the outside. The transmission method of the main synchronous pulley 22, driven synchronous pulley 23, and synchronous belt 24 ensures smooth transmission, reduces impact and vibration, and improves the stability of the power cable 5 during winding and unwinding. The speed reducer 25 can be adjusted according to actual needs to change the rotation speed of the rotating jaw 26, thus meeting the requirements for the winding and unwinding speed of the power cable 5 under different working conditions.

[0033] In a preferred embodiment, the transmission assembly further includes a mounting base 28, within which the main synchronizing pulley 22, the driven synchronizing pulley 23, and the timing belt 24 are disposed. The mounting base 28 further protects the main synchronizing pulley 22, the driven synchronizing pulley 23, and the timing belt 24, making their installation more secure. By integrating these components within the mounting base 28, overall installation and disassembly are facilitated, as well as subsequent maintenance and repair.

[0034] In a preferred embodiment, the winding member 27 includes at least three winding rods and a limiting member. Each winding rod is vertically arranged and its bottom end is detachably connected to the rotating gripper 26. The limiting member is fixedly connected to the top end of each winding rod to prevent the power cable 5 from detaching from the winding rod. The at least three winding rods increase the winding space for the power cable 5, enabling the simultaneous winding and unwinding of cables of greater length. The winding rods and the rotating gripper 26 are detachable, facilitating the replacement or maintenance of the winding rods. The limiting member effectively prevents the power cable 5 from detaching from the top end of the winding rod during winding and unwinding, ensuring smooth winding and unwinding operations and preventing the cable from scattering and causing chaos.

[0035] In a preferred embodiment, the frame 1 further includes a bearing housing 13 and a bearing. The bearing housing 13 is installed in the first opening, and the bearing is installed in the bearing housing 13. The inner ring of the bearing is fixedly connected to the rotating jaw 26. The cooperation between the bearing housing 13 and the bearing can support the rotating jaw 26, reduce the friction when the rotating jaw 26 rotates, make the rotation smoother, and reduce energy loss. At the same time, this structure increases the stability of the rotation of the rotating jaw 26, ensuring that the power cable 5 will not be unevenly wound due to the shaking of the rotating jaw 26 during the winding and unwinding process.

[0036] In a preferred embodiment, the frame 1 further includes a limiting plate 14 and multiple limiting wheels 15. The limiting plate 14 is fixedly connected to the top of the first housing 11, and one end of the limiting plate 14 is provided with an arc-shaped notch for the winding member 27 to pass through. Each limiting wheel 15 is rotatably connected to the arc-shaped notch and rolls with the winding member 27. The arc-shaped notch of the limiting plate 14 facilitates the passage of the winding member 27 and also provides a certain positioning function for the winding member 27. The multiple limiting wheels 15 are roll-connected with the winding member 27, which can limit the position of the winding member 27 while reducing the frictional resistance of the winding member 27 during rotation and movement, enhancing the smoothness of the device operation, and also playing a buffering role to a certain extent to protect the winding member 27.

[0037] In a preferred embodiment, the frame 1 further includes a second housing 12, which is fixedly connected to the base 18. The top of the second housing 12 has a second opening, and the bottom of the second housing 12 has a mounting base. The second driving component includes a fixed plate 33, a stepper motor 35, an electric cylinder 36, and a movable plate 37. The bottom of the fixed plate 33 has a hinge seat 34, which is connected to the mounting base via a fixed pin 17. The fixed ends of the stepper motor 35 and the electric cylinder 36 are both fixedly connected to the fixed plate 33, and the stepper motor 35 is drive-connected to the electric cylinder 36. The output end of the electric cylinder 36 is fixedly connected to the movable plate 37, and the guide block 31 is fixedly connected to the top of the movable plate 37. The second housing 12 provides installation space and protection for the various components of the wiring mechanism 3, preventing them from being interfered with by the external environment. The connection between the hinge seat 34 and the mounting base allows the fixed plate 33 to rotate flexibly, providing the basic conditions for the wiring mechanism 3 to achieve reciprocating oscillation. The stepper motor 35 and the electric cylinder 36 work together to precisely control the movement of the movable plate 37, thereby enabling the guide block 31 to swing back and forth precisely in the length direction of the winding piece 27, ensuring that the power cable 5 is laid out evenly.

[0038] In a preferred embodiment, the frame 1 further includes multiple guide sleeves 16, and the wiring mechanism 3 further includes multiple guide rods 38 and multiple fixing screws 39. The guide sleeves 16 are fixedly connected to the second opening. The top end of the guide rod 38 is connected to the movable plate 37 via the fixing screws 39, and the bottom end of the guide rod 38 passes through the corresponding guide sleeve 16 to guide the movement direction of the movable plate 37. The cooperation between the guide sleeves 16 and the guide rods 38 can precisely limit the movement direction of the movable plate 37, ensuring that the guide block 31 can only reciprocate in the length direction of the winding member 27, avoiding deviation of the movable plate 37 during movement, thereby ensuring the accuracy and stability of the wiring. The fixing screws 39 connection method facilitates the installation and disassembly of the movable plate 37, and facilitates the maintenance and adjustment of the components of the wiring mechanism 3.

[0039] In a preferred embodiment, a locking pin 32 is also included. The guide block 31 is provided with an opening groove with a top opening. The locking pin 32 is inserted into the top opening of the opening groove to make the opening groove form a guide hole. By forming a guide hole with the locking pin 32, the cable can pass through the guide block 31 more smoothly, and at the same time, it can also play a certain role in fixing the cable and preventing it from shaking during the cable laying process.

[0040] In a preferred embodiment, the frame 1 further includes a rotating shaft 181, two shaft plates 182, two wheels 183, support legs 184, and a telescopic handle 185. The two shaft plates 182 are respectively fixedly connected to both sides of one end of the base 18. The two ends of the rotating shaft 181 pass through the two shaft plates 182 and are fixedly connected to them. The two ends of the rotating shaft 181 are rotatably connected to one of the wheels 183. The telescopic handle 185 is fixedly connected to the side of the second housing 12 away from the first housing 11. The support legs 184 are fixedly connected to the bottom of the base plate away from the wheels 183. Each wheel 183 is equipped with a mudguard 186. The wheels 183 and the telescopic handle 185 facilitate movement of the device, allowing it to be easily transferred to different work sites, thus improving the device's mobility. The support legs 184 support the device during operation, ensuring its stability. The mudguard 186 can prevent mud, water and other debris kicked up by the traveling wheel 183 during travel from splashing onto the device, protecting the internal components of the device from contamination.

[0041] In a preferred embodiment, the controller 4 includes a push-button switch 41, a control circuit main board, and a power supply. The control circuit main board and power supply are housed within the first housing 11, while the push-button switch 41 is located on the top of the second housing 12. The push-button switch 41, the drive motor 21, and the stepper motor 35 are all electrically connected to the control circuit main board and the power supply. Housed within the first housing 11, the control circuit main board and the drive motor 21 and stepper motor 35 provide protection for the core control components. The push-button switch 41's location on the top of the second housing 12 facilitates operator access. The power supply provides a stable power supply to all components. The control circuit main board receives the operation signals from the push-button switch 41 and precisely controls the drive motor 21 and the stepper motor 35, achieving accurate control of the winding mechanism 2 and the cable laying mechanism 3, ensuring the normal operation of the entire automatic power cable winding and unwinding device.

[0042] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An electric power cable automatic take-up and pay-off device, characterized by: The utility model relates to a kind of electric power cable winding device, including: Rack (1), Winding mechanism (2), the fixed end of first driving element is fixedly connected with the rack (1), the driving end of first driving element is drivingly connected with winding element (27) to drive winding element (27) rotation, winding element (27) is used to make electric power cable (5) winding connection in winding element (27), Wire arranging mechanism (3), the fixed end of second driving element is fixedly connected with the rack (1), the driving end of second driving element is drivingly connected with guide block (31) to drive guide block (31) reciprocating swing in the length direction of winding element (27), guide block (31) is provided with guide hole, the guide hole is used to make electric power cable (5) pass through, and Controller (4), the controller (4) is electric signal connection with the first driving element and the second driving element.

2. The power cable automatic playing and withdrawing device according to claim 1, characterized in that: The first driving element includes driving motor (21), transmission assembly and rotating clamp jaw (26), the fixed end of driving motor (21) is fixedly connected with the rack (1), the output shaft of driving motor (21) is drivingly connected with rotating clamp jaw (26) by transmission assembly, and rotating clamp jaw (26) is used for being detachably connected with one end of winding element (27).

3. The power cable automatic playing and withdrawing device according to claim 2, characterized in that: The rack (1) includes base (18) and first box (11), the top of first box (11) is provided with first opening, transmission assembly includes main synchronous wheel (22), slave synchronous wheel (23), synchronous belt (24) and speed reducer (25), driving motor (21), main synchronous wheel (22), slave synchronous wheel (23), synchronous belt (24) and speed reducer (25) are arranged in first box (11), main synchronous wheel (22) is fixedly connected with the output shaft of driving motor (21), main synchronous wheel (22) is drivingly connected with slave synchronous wheel (23) by synchronous belt (24), slave synchronous wheel (23) is drivingly connected with rotating clamp jaw (26) by speed reducer (25), and rotating clamp jaw (26) passes through first opening and is drivingly connected with winding element (27).

4. The power cable automatic playing and withdrawing device according to claim 3, characterized in that: The winding element (27) includes at least three winding rods and a limiting member, each winding rod is vertically arranged and detachably connected with the rotating clamp jaw (26) at the bottom end, and the limiting member is fixedly connected with the top end of each winding rod to limit the electric power cable (5) from the winding rod.

5. The power cable automatic playing and withdrawing device according to claim 4, characterized in that: The rack (1) further includes a bearing seat (13) and a bearing, the bearing seat (13) is installed in the first opening, the bearing is installed in the bearing seat (13), and the inner ring of the bearing is fixedly connected with the rotating clamp jaw (26).

6. The power cable automatic playing and withdrawing device according to claim 5, characterized in that: The rack (1) further comprises a limiting plate (14) and a plurality of limiting wheels (15), the limiting plate (14) is fixedly connected to the top of the first box body (11), one end of the limiting plate (14) is provided with an arc-shaped notch, the arc-shaped notch is used for allowing the winding piece (27) to pass through, and each limiting wheel (15) is rotationally connected to the arc-shaped notch and is rollingly connected with the winding piece (27).

7. The power cable automatic playing and withdrawing device according to claim 6, characterized in that: The rack (1) further comprises a second box body (12), the second box body (12) is fixedly connected with the base (18), the top of the second box body (12) is provided with a second opening, the bottom of the second box body (12) is provided with a mounting seat, the second driving piece comprises a fixed plate (33), a stepping motor (35), an electric cylinder (36) and a movable plate (37), the bottom of the fixed plate (33) is provided with a hinge seat (34), the hinge seat (34) is connected with the mounting seat through a fixed pin shaft (17), the fixed plate (33) is fixedly connected with the fixed end of the stepping motor (35) and the electric cylinder (36), the stepping motor (35) is drivingly connected with the electric cylinder (36), the output end of the electric cylinder (36) is fixedly connected with the movable plate (37), and the guide block (31) is fixedly connected with the top of the movable plate (37).

8. The power cable automatic playing and withdrawing device according to claim 7, characterized in that: The rack (1) further comprises a plurality of guide sleeves (16), the wire arranging mechanism (3) further comprises a plurality of guide rods (38) and a plurality of fixed screws (39), the guide sleeves (16) are fixedly connected to the second opening, the top end of the guide rod (38) is connected with the movable plate (37) through the fixed screw (39), and the bottom end of the guide rod (38) penetrates through the corresponding guide sleeve (16) to guide the moving direction of the movable plate (37).

9. The power cable automatic playing and withdrawing device according to claim 8, characterized in that: The rack (1) further comprises a rotating shaft (181), two shaft plates (182), two walking wheels (183), a supporting leg (184) and a telescopic handle (185), the two shaft plates (182) are fixedly connected to the two sides of one end of the base (18) respectively, the two ends of the rotating shaft (181) penetrate through the two shaft plates (182) and are fixedly connected with the shaft plates (182) respectively, the two ends of the rotating shaft (181) are rotationally connected with one walking wheel (183) respectively, the telescopic handle (185) is fixedly connected to the side, away from the first box body (11), of the second box body (12), and the supporting leg (184) is fixedly connected to the bottom of one end of the base (18), away from the walking wheel (183).

10. The power cable automatic playing and withdrawing device according to claim 8, characterized in that: The controller (4) comprises a push button switch (41), a control circuit mainboard and a power supply, the control circuit mainboard and the power supply are arranged in the first box body (11), the push button switch (41) is arranged on the top of the second box body (12), the push button switch (41), the driving motor (21) and the stepping motor (35) are connected with the control circuit mainboard, and the push button switch (41), the control circuit mainboard, the driving motor (21) and the stepping motor (35) are electrically connected with the power supply.

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