Current optimization type three-split junction box

Through the design of the wire harness mechanism and the control mechanism, the problem of unsolid fixation of the wire is solved, stable fixation and precise adjustment of the wire is achieved, and the safety and operation convenience of the circuit are improved.

CN223273812UActive Publication Date: 2025-08-26CIXI CHUANGQI PHOTOVOLTAIC TECH CO LTD
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Patent Information

Application Number
CN202422486722.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-15
Publication Date
2025-08-26
Estimated Expiration
2034-10-15

AI Technical Summary

Technical Problem

The existing current-optimized three-piece junction box lacks an effective fixing mechanism, resulting in the wire being unsolid and easy to loosen, affecting the stability and safety of the connection, and complex disassembly and replacement.

Method used

A wire harness mechanism including a wire harness sleeve, an oblique slider, a pressure spring, a wire harness plate, an oblique slide sleeve and a push sleeve are designed, combining a threaded sleeve, a rotating sleeve, a transmission wheel, a rotating rod, a driving wheel and a knob, as well as a limiting mechanism to ensure stable fixation and precise adjustment of the wires.

Benefits of technology

It realizes effective fixation of the wires, avoids loosening, improves circuit stability and safety, simplifies the operation process, and enhances the reliability and safety of the junction box.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a current optimization type three-split junction box, which comprises a bottom shell, a top cover is arranged on the bottom shell, a bunching mechanism is arranged in the bottom shell, the bunching mechanism comprises a bunching sleeve, an inclined slide block, a pressure spring, a bunching plate, an inclined slide sleeve and a push sleeve, the bunching sleeve is arranged on the bottom shell, the inclined slide block is arranged on the bottom shell, and the push sleeve is arranged on the inclined slide block. The multiple sets of inclined sliding blocks are installed at the two ends in the bunching sleeve respectively, the multiple sets of compressed springs are installed on the inner sides of the multiple sets of inclined sliding blocks, the multiple sets of bunching plates are installed at the inner ends of the multiple sets of compressed springs, and the multiple sets of inclined sliding sleeves are connected to the bottom ends of the multiple sets of inclined sliding blocks. The two sets of push sleeves are slidably connected into the multiple sets of inclined sliding sleeves respectively, a control mechanism is arranged outside the bunching sleeve, and the control mechanism comprises a threaded sleeve, a rotating sleeve, a transmission wheel, a rotating rod, a driving wheel and a rotary knob. And enough fixing force cannot be provided.
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Description

Technical Field

[0001] The utility model relates to the technical field of junction boxes, and more particularly to a current-optimized three-part junction box. Background Art

[0002] In the existing technology, a current-optimized three-part junction box is an innovative electrical connection device specially designed to improve current transmission efficiency, enhance safety, and facilitate installation and maintenance;

[0003] In the process of home decoration and wire connection in the prior art, the fixing and binding of wires has always been a troubling problem. Due to the lack of an effective fixing mechanism, the wires are often difficult to be firmly bound in the appropriate position, which not only affects the stability of the connection, but also may cause the wiring heads to loosen or even fall off during long-term use. In this case, the safety of the wires cannot be guaranteed, increasing the risk of line short circuits, and also making it additional difficult for users to detect and repair line faults. To solve this problem, a junction box is usually required to protect and connect the wires to ensure the stability and safety of the wires.

[0004] Although traditional compatible three-part junction boxes are designed with wire fixation and connection in mind, their fixing effect is not ideal. Due to structural limitations, such junction boxes often cannot provide sufficient fixing force, causing the terminal heads to easily loosen when subjected to vibration or pulling. This loosening phenomenon not only affects the normal operation of the wires, but may also cause safety hazards such as short circuits. In addition, when the wires need to be replaced, the disassembly and replacement process becomes complicated and time-consuming due to the poor fixing effect of the junction box. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the problems existing in the prior art, the present invention provides a current-optimized three-part junction box to solve the technical problem mentioned in the background art that sufficient fixing force cannot be provided due to the lack of an effective fixing mechanism.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a current-optimized three-part junction box, comprising a bottom shell, a top cover provided on the bottom shell, a wire harness mechanism provided in the bottom shell, the wire harness mechanism comprising a wire harness sleeve, an inclined slider, a compression spring, a wire harness plate, an inclined sliding sleeve and a push sleeve, the wire harness sleeve is installed on the bottom shell, the inclined slider is provided with multiple groups respectively installed at the two ends of the wire harness sleeve, the compression spring is provided with multiple groups installed on the inner sides of multiple groups of the inclined sliders, the wire harness plate is provided with multiple groups installed at the inner ends of multiple groups of the compression springs, the inclined sliding sleeve is provided with multiple The group is connected to the bottom ends of multiple groups of inclined sliding blocks, the push sleeves are provided with two groups and are respectively slidably connected to the multiple groups of inclined sliding sleeves, a control mechanism is provided outside the wiring sleeve, the control mechanism includes a threaded sleeve, a rotating sleeve, a transmission wheel, a rotating rod, a driving wheel and a knob, the threaded sleeve is provided with two groups installed on the outside of the two groups of push sleeves, the rotating sleeve is rotatably installed on the outer wall of the wiring sleeve, the transmission wheel is provided on the outside of the rotating sleeve, the rotating rod is rotatably installed on the bottom shell, the driving wheel is installed on the outer wall of the rotating rod and meshes with the driven wheel, and the knob is installed at one end of the rotating rod.

[0009] The present invention is further configured such that both ends of the inner side of the cable harness are provided with inclined slide grooves, and multiple groups of the inclined slide grooves are provided. Multiple groups of the inclined sliding blocks are slidably installed in the multiple groups of the inclined slide grooves. The design of the inclined slide grooves allows the inclined sliding blocks to slide freely in the cable harness. This flexibility enables the cable harness plate to better adapt to wires of different diameters, thereby improving the versatility and applicability of the cable harness mechanism.

[0010] The present invention is further configured such that the plurality of wire-binding plates are all configured in an arc shape. This design enables the wire-binding plates to form a circle around the wires, thereby better fixing the wires.

[0011] The utility model is further configured such that the bottom surfaces of the multiple groups of inclined sliding blocks are each provided with a slide bar, and the multiple groups of slide bars are respectively slidably connected to the multiple groups of inclined sliding sleeves. The presence of the slide bar reduces the friction of the inclined sliding block in the inclined sliding sleeve and improves the movement efficiency.

[0012] The utility model is further configured such that the two groups of push sleeves are respectively slidably mounted on the cable harness sleeves. The sliding mounting design of the push sleeves makes the operation of the cable harness mechanism more flexible, and facilitates users to adjust the fixing force of the wires according to their needs.

[0013] The utility model is further configured such that opposite internal threads are respectively provided at both ends of the inner side of the rotating sleeve and are threadedly connected to the two groups of threaded sleeves. This design makes the movement of the push sleeve more precise and controllable, thereby improving the operating accuracy of the wiring harness mechanism.

[0014] The utility model is further configured such that a support plate is provided at one end of the bottom shell, a support rod is provided at one end of the top cover, and guide wheels are rotatably provided on both the support plate and the support rod. The presence of the guide wheels reduces the friction and resistance of the wires when passing through the junction box, thereby protecting the wires from damage.

[0015] The utility model is further configured as follows: a limiting mechanism is provided on the knob, and the limiting mechanism includes a clamping rod, a push spring, a positioning plate and a clamping groove. The clamping rod is provided with multiple groups and is slidably installed on the bottom surface of the knob. The push spring is provided with multiple groups and the two ends are respectively connected to the clamping rod and the knob. The positioning plate is installed on the side wall of the bottom shell, and the clamping groove is provided with multiple groups distributed on the positioning plate. The design of the limiting mechanism ensures that the knob is accurately locked in a specific position, prevents operational errors caused by accidental rotation, and improves the safety and reliability of the entire junction box.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a current-optimized three-part junction box with the following beneficial effects:

[0018] 1. The design of the cable harness mechanism achieves effective fixation and restraint of the wires through the coordinated work of the cable harness sleeve, inclined slider, compression spring, cable harness plate, inclined sliding sleeve and push sleeve. The installation of the cable harness sleeve provides stable support. The combination of the inclined slider and compression spring allows the cable harness plate to be flexibly opened and closed to accommodate wires of different diameters. This design improves the fixing effect of the wires and avoids the risk of the terminal head falling off due to looseness, thereby ensuring the stability and safety of the circuit.

[0019] 2. The design of the control mechanism, including the threaded sleeve, rotating sleeve, transmission wheel, rotating rod, driving wheel and knob, provides a simple and precise control method. The rotation of the knob controls the opening and closing of the wire harness through a series of transmission mechanisms, thereby achieving precise adjustment of the degree of wire fixation. This design simplifies the operation process, improves the convenience and accuracy of operation, and also ensures the reliability of wire connection.

[0020] 3. The design of the limit mechanism, including the clamping rod, push spring, positioning disk and clamping slot, provides precise position control for the knob. When the knob is rotated to a specific position, the clamping rod is inserted into the clamping slot on the positioning disk under the action of the push spring, thereby locking the position of the knob. This design not only allows the operator to accurately control the rotation angle, but also prevents operational errors caused by accidental rotation, thereby enhancing the safety and stability of the entire junction box.

[0021] 4. The setting of the guide wheel, located on the support plate and the support rod, provides assistance for the guidance of the wires and the operation of the wiring harness mechanism. The existence of the guide wheel makes the wires smoother when passing through the junction box, reducing damage caused by friction or obstruction. At the same time, the guide wheel also helps to maintain the correct position of the wires, facilitating the adjustment of the wiring harness mechanism and the fixation of the wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a current-optimized three-part junction box in the present utility model;

[0023] Figure 2 This is a schematic cross-sectional view of the interior of the bottom shell of the present invention;

[0024] Figure 3 This is a schematic cross-sectional view of the wire harness mechanism of the present invention;

[0025] Figure 4 This is a schematic structural diagram of the oblique sliding sleeve and the push sleeve in the utility model;

[0026] Figure 5 This is a schematic diagram of the explosion structure of the control mechanism in the utility model;

[0027] Figure 6 It is a structural diagram of the limiting mechanism in the utility model.

[0028] In the figure: 1. bottom shell; 2. top cover; 3. cable harness; 4. inclined slider; 5. compression spring; 6. cable harness plate; 7. inclined sliding sleeve; 8. push sleeve; 9. threaded sleeve; 10. rotating sleeve; 11. transmission wheel; 12. rotating rod; 13. driving wheel; 14. knob; 15. inclined sliding groove; 16. sliding bar; 17. support plate; 18. support rod; 19. guide wheel; 20. clamping rod; 21. push spring; 22. positioning plate; 23. clamping groove. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0032] See also Figure 1-6 , a current optimized three-part junction box, including a bottom shell 1, a top cover 2 is provided on the bottom shell 1, a wire harness mechanism is provided in the bottom shell 1, the wire harness mechanism includes a wire harness sleeve 3, an inclined slider 4, a compression spring 5, a wire harness plate 6, an inclined sliding sleeve 7 and a push sleeve 8, the wire harness sleeve 3 is installed on the bottom shell 1, the inclined slider 4 is provided with multiple groups respectively installed at both ends of the wire harness sleeve 3, the compression spring 5 is provided with multiple groups installed on the inner side of multiple groups of inclined sliders 4, the wire harness plate 6 is provided with multiple groups installed at the inner end of multiple groups of compression springs 5, the inclined sliding sleeve 7 is provided with multiple groups connected to the bottom end of multiple groups of inclined sliders 4, and the push sleeve 8 is provided There are two groups of them and they are slidably connected in multiple groups of inclined sliding sleeves 7. A control mechanism is provided outside the wiring sleeve 3, which includes a threaded sleeve 9, a rotating sleeve 10, a transmission wheel 11, a rotating rod 12, a driving wheel 13 and a knob 14. The threaded sleeve 9 is provided with two groups installed on the outside of the two groups of push sleeves 8. The rotating sleeve 10 is rotatably mounted on the outer wall of the wiring sleeve 3, the transmission wheel 11 is provided on the outside of the rotating sleeve 10, the rotating rod 12 is rotatably mounted on the bottom shell 1, the driving wheel 13 is mounted on the outer wall of the rotating rod 12 and engages with the driven wheel, and the knob 14 is mounted on one end of the rotating rod 12.

[0033] Both ends of the inner side of the wiring harness 3 are provided with inclined slide grooves 15, and there are multiple groups of inclined slide grooves 15. Multiple groups of inclined sliding blocks 4 are slidably installed in the multiple groups of inclined slide grooves 15. Both ends of the inner side of the wiring harness 3 are provided with inclined slide grooves 15. These inclined slide grooves 15 are provided in multiple groups for installing the inclined sliding blocks 4. The inclined sliding blocks 4 can slide in the inclined slide grooves 15 to control the opening and closing of the wiring harness plate 6. The design of the inclined slide grooves 15 allows the inclined sliding blocks 4 to slide freely in the wiring harness 3. This flexibility enables the wiring harness plate 6 to better adapt to wires of different diameters, thereby improving the versatility and applicability of the wiring harness mechanism.

[0034] Multiple groups of wire harness plates 6 are arranged in an arc shape. This design enables the wire harness plates 6 to form a circle around the wires, thereby better fixing the wires. The arc-shaped wire harness plates 6 can be evenly distributed on the wires, providing a more stable fixing effect and reducing looseness or damage caused by movement of the wires.

[0035] The bottom surfaces of the multiple groups of inclined sliding blocks 4 are all provided with sliding bars 16, and the multiple groups of sliding bars 16 are respectively slidably connected to the multiple groups of inclined sliding sleeves 7. These sliding bars 16 are slidably connected to the inclined sliding sleeves 7, making the inclined sliding blocks 4 more stable during movement. The presence of the sliding bars 16 reduces the friction of the inclined sliding blocks 4 in the inclined sliding sleeves 7, improves the movement efficiency, and also reduces the heat generated by friction, thereby protecting the safety of the wires.

[0036] The two sets of push sleeves 8 are respectively slidably installed on the wire harness sleeve 3. By controlling the sliding of the push sleeve 8, the opening and closing degree of the wire harness plate 6 can be adjusted. The sliding installation design of the push sleeve 8 makes the operation of the wire harness mechanism more flexible, which is convenient for users to adjust the fixing force of the wires according to their needs, and also facilitates the installation and removal of the wires.

[0037] Opposite internal threads are respectively provided at both ends of the inner side of the rotating sleeve 10 and are threadedly connected to the two groups of threaded sleeves 9. These internal threads are threadedly connected to the two groups of threaded sleeves 9. By rotating the threaded sleeves 9, the sliding of the push sleeve 8 can be driven. This design makes the movement of the push sleeve 8 more precise and controllable, improves the operating accuracy of the wire bundling mechanism, and also ensures the stability of the wire fixation.

[0038] A support plate 17 is provided at one end of the bottom shell 1, and a support rod 18 is provided at one end of the top cover 2. Guide wheels 19 are rotatably provided on the support plate 17 and the support rod 18. Guide wheels 19 are rotatably provided on the support plate 17 and the support rod 18. These guide wheels 19 help guide the direction of the wires. The presence of the guide wheels 19 reduces the friction and resistance of the wires when passing through the junction box, protecting the wires from damage. At the same time, the guide wheels 19 also help maintain the correct position of the wires, facilitating the adjustment of the wiring mechanism.

[0039] In this embodiment, the top cover 2 is opened to expose the wire harness mechanism inside the bottom shell 1 , the wires to be fixed are placed into the wire harness sleeve 3 , and the knob 14 is turned to drive the wire harness mechanism through the control mechanism. When the operator rotates the knob 14, the rotating rod 12 drives the driving wheel 13 to rotate, and the driving wheel 13 is engaged with the transmission wheel 11 to make the rotating sleeve 10 rotate. The rotation of the rotating sleeve 10 drives the threaded sleeve 9 to move. Since the threaded sleeve 9 is connected with the push sleeve 8, the movement of the push sleeve 8 ultimately controls the opening and closing of the cable bundle plate 6. The opposite internal thread design on the threaded sleeve 9 enables the push sleeves 8 on both sides to move inward or outward at the same time to achieve symmetrical control, and the push sleeve 8 slides on the cable bundle sleeve 3 and controls the position of the inclined slide block 4 by being connected with the inclined slide block 7. The inclined slide block 4 slides in the inclined slide groove 15, and the compression spring 5 pushes the cable bundle plate 6 to move inward. Multiple groups of arc-shaped cable bundle plates 6 work together to form an adjustable circular space for fixing wires of different diameters. The inclined slide block 7 is connected to the slide bar 16 at the bottom of the inclined slide block 4, which makes the movement of the inclined slide block 4 more stable.

[0040] See also Figure 6 As an implementation method of the limit mechanism: a limit mechanism is provided on the knob 14, which includes a clamping rod 20, a push spring 21, a positioning disk 22 and a clamping slot 23. The clamping rod 20 is provided with multiple groups and is slidably installed on the bottom surface of the knob 14, and the push spring 21 is provided with multiple groups and the two ends are respectively connected to the clamping rod 20 and the knob 14, the positioning disk 22 is installed on the side wall of the bottom shell 1, and the clamping slot 23 is provided with multiple groups distributed on the positioning disk 22. When the knob 14 is rotated to a specific position, the clamping rod 20 is inserted into the clamping slot 23 on the positioning disk 22 under the action of the push spring 21, thereby locking the position of the knob 14. The design of the limit mechanism ensures that the knob 14 is accurately locked in a specific position, prevents operational errors caused by accidental rotation, and improves the safety and reliability of the entire junction box.

[0041] More specifically, when the knob 14 is rotated to a specific position, the latching rod 20 is inserted into the latching groove 23 on the positioning plate 22 under the action of the push spring 21. This design allows the operator to accurately control the rotation angle and lock the knob 14 at a specific position to prevent accidental rotation.

[0042] In summary, when the entire device is in use or running: open the top cover 2 to expose the wiring harness mechanism inside the bottom shell 1, put the wires to be fixed into the wiring harness sleeve 3, turn the knob 14, and drive the wiring harness mechanism through the control mechanism. When the operator rotates the knob 14, the rotating rod 12 drives the driving wheel 13 to rotate, and the driving wheel 13 is engaged with the transmission wheel 11 to make the rotating sleeve 10 rotate. The rotation of the rotating sleeve 10 drives the threaded sleeve 9 to move. Since the threaded sleeve 9 is connected with the push sleeve 8, the movement of the push sleeve 8 ultimately controls the opening and closing of the cable bundle plate 6. The opposite internal thread design on the threaded sleeve 9 enables the push sleeves 8 on both sides to move inward or outward at the same time to achieve symmetrical control, and the push sleeve 8 slides on the cable bundle sleeve 3 and controls the position of the inclined slide block 4 by being connected with the inclined slide block 7. The inclined slide block 4 slides in the inclined slide groove 15, and the compression spring 5 pushes the cable bundle plate 6 to move inward. Multiple groups of arc-shaped cable bundle plates 6 work together to form an adjustable circular space for fixing wires of different diameters. The inclined slide block 7 is connected to the slide bar 16 at the bottom of the inclined slide block 4, which makes the movement of the inclined slide block 4 more stable.

[0043] When the knob 14 is rotated to a specific position, the locking rod 20 is inserted into the locking groove 23 on the positioning plate 22 under the action of the push spring 21. This design allows the operator to accurately control the rotation angle and lock the knob 14 at a specific position to prevent accidental rotation.

[0044] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A current-optimized three-part junction box, comprising a bottom shell (1), characterized by: The bottom shell (1) is provided with a top cover (2), and the bottom shell (1) is provided with a wire harness mechanism, which includes a wire harness sleeve (3), an inclined slider (4), a compression spring (5), a wire harness plate (6), an inclined sliding sleeve (7) and a push sleeve (8). The wire harness sleeve (3) is installed on the bottom shell (1), the inclined slider (4) is provided with multiple groups respectively installed at the two ends of the wire harness sleeve (3), the compression spring (5) is provided with multiple groups installed on the inner side of multiple groups of the inclined sliders (4), the wire harness plate (6) is provided with multiple groups installed on the inner ends of multiple groups of the compression springs (5), the inclined sliding sleeve (7) is provided with multiple groups connected to the bottom ends of multiple groups of the inclined sliders (4), and the push sleeve (8) is provided with two groups and slides respectively. The invention relates to a wiring harness (3) comprising a plurality of inclined sliding sleeves (7) and a control mechanism provided outside the wiring harness (3). The control mechanism comprises a threaded sleeve (9), a rotating sleeve (10), a transmission wheel (11), a rotating rod (12), a driving wheel (13) and a knob (14). The threaded sleeve (9) is provided with two groups mounted on the outside of the two groups of push sleeves (8). The rotating sleeve (10) is rotatably mounted on the outer wall of the wiring harness (3). The transmission wheel (11) is arranged on the outer side of the rotating sleeve (10). The rotating rod (12) is rotatably mounted on the bottom shell (1). The driving wheel (13) is mounted on the outer wall of the rotating rod (12) and meshes with the driven wheel. The knob (14) is mounted on one end of the rotating rod (12).

2. The current-optimized three-part junction box according to claim 1, characterized in that: Both ends of the inner side of the cable harness (3) are provided with inclined slide grooves (15), and multiple groups of the inclined slide grooves (15) are provided. Multiple groups of the inclined sliding blocks (4) are slidably installed in the multiple groups of the inclined slide grooves (15).

3. The current-optimized three-part junction box according to claim 2, characterized in that: The plurality of groups of wire harness plates (6) are all arranged in an arc shape.

4. A current optimized three-part junction box according to claim 3, characterized in that: multiple groups The bottom surfaces of the inclined sliding blocks (4) are each provided with a sliding bar (16), and a plurality of groups of the sliding bars (16) are respectively slidably connected to a plurality of groups of the inclined sliding sleeves (7).

5. The current-optimized three-part junction box according to claim 4, characterized in that: The two groups of push sleeves (8) are respectively slidably mounted on the cable harness sleeves (3).

6. The current-optimized three-part junction box according to claim 5, characterized in that: The two ends of the inner side of the rotating sleeve (10) are respectively provided with opposite internal threads and are threadedly connected to the two groups of threaded sleeves (9).

7. The current-optimized three-part junction box according to claim 6, characterized in that: One end of the bottom shell (1) is provided with a support plate (17), one end of the top cover (2) is provided with a support rod (18), and guide wheels (19) are rotatably provided on both the support plate (17) and the support rod (18).

8. The current-optimized three-part junction box according to claim 7, characterized in that: The knob (14) is provided with a limiting mechanism, which includes a clamping rod (20), a push spring (21), a positioning plate (22) and a clamping groove (23). The clamping rod (20) is provided with multiple groups and is slidably mounted on the bottom surface of the knob (14). The push spring (21) is provided with multiple groups and its two ends are respectively connected to the clamping rod (20) and the knob (14). The positioning plate (22) is installed on the side wall of the bottom shell (1). The clamping groove (23) is provided with multiple groups and distributed on the positioning plate (22).

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