Flexible flat cable interface fixing device

Abstract

This utility model discloses a flexible flat cable interface fixing device, belonging to the field of electronic technology. Its key technical features include an FFC interface module, with a wiring fixing mechanism movably connected to the bottom of the FFC interface module. A sealing and protective mechanism is movably connected to the outside of the wiring fixing mechanism. An FFC flexible flat cable is electrically connected to the bottom of the FFC interface module. For anti-tangling, the combination of a limiting half-hole at the bottom of the cable bundle box and a guiding half-hole inside the flip cover allows the thinner transmission end of the FFC flexible flat cable to be placed within it. The arrangement of the two limiting half-holes ensures that multiple cable transmission ends are distributed in an orderly manner, preventing tangling and achieving integrated limiting guidance. For anti-loosening and sealing protection, after the flip cover is closed, the cable bundle box fits snugly against the flip cover, and the bottom limiting half-hole forms a complete limiting structure, preventing the thicker wiring end from falling off and being damaged. Twisting the adjusting screw allows the guiding half-hole to straighten the cable transmission end and press it up from the bottom, thereby strengthening the wiring stability and preventing loosening from the bottom.

Description

Technical Field

[0001] This utility model relates to the field of electronic technology, and in particular to a flexible flat cable interface fixing device. Background Technology

[0002] FFC (Flexible Flat Cable) is made of PET insulation material and ultra-thin tin-plated flat copper wire pressed together by automated equipment. It has advantages such as flexibility, thinness, small size, easy connection, and easy electromagnetic shielding. It is often used for signal transmission in electronic equipment. Traditional wiring methods have problems such as large size, complex wiring, and susceptibility to signal interference. FFC and its corresponding connectors have emerged to improve these conditions.

[0003] In existing technologies, when FFC flexible flat cable is connected to the interface module, the lack of an integrated limiting and guiding structure and dynamic clamping and sealing protection mechanism leads to problems such as multiple wires easily crossing and tangling, and the interface is prone to loosening and poor contact due to vibration or dust intrusion.

[0004] To address this, a flexible flat cable interface fixing device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a flexible flat cable interface fixing device, which can solve the problems of existing FFC flexible flat cables where multiple wires are easily crossed and tangled, and the interface is prone to loosening and poor contact due to vibration or dust intrusion.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible flat cable interface fixing device, including an FFC interface module, a wiring fixing mechanism is movably connected to the bottom of the FFC interface module, a sealing and protection mechanism is movably connected to the outside of the wiring fixing mechanism, and an FFC flexible flat cable is electrically connected to the bottom of the FFC interface module.

[0007] The wiring fixing mechanism includes a cable tie box fixedly connected to the bottom of the FFC interface module. A flip cover is rotatably connected to the front side of the cable tie box. Limiting half holes are provided at the bottom of both the cable tie box and the flip cover. A first support plate is slidably connected to the rear side of the inner side of the cable tie box. A second support plate is slidably connected to the rear side of the inner side of the flip cover. A cable guide half hole is provided on the inner side of both the first and second support plates. A linkage slot is provided on the front side of the first support plate. A linkage plug is fixedly connected to the rear side of the second support plate. The linkage plug is inserted into the inner side of the linkage slot. Anti-loosening components are movably connected to the left side of both the cable tie box and the flip cover.

[0008] Preferably, the sealing and protection mechanism includes an elastic sealing block fixedly connected to the rear side of the flip cover and the second extension box, and a sealing ring groove is provided on the front side of the cable tie box and the first extension box, and the elastic sealing block is inserted into the inner side of the sealing ring groove.

[0009] Preferably, a protective shell is fixedly connected to the bottom of the cable bundle box, and an extension shaft is fixedly connected to the bottom of the flip cover. The extension shaft is rotatably connected to the bottom of the cable bundle box and is located inside the protective shell.

[0010] Preferably, a torsion spring is fixedly connected to the outer side of the extension shaft, and the torsion spring is fixedly connected to the inner side of the protective shell.

[0011] Preferably, the anti-loosening component includes a first extension box fixedly connected to the left side of the cable tie box, a second extension box fixedly connected to the left side of the flip cover, a first linkage block fixedly connected to the left side of the first support plate, the first linkage block being slidably connected to the left side of the cable tie box, a second linkage block fixedly connected to the left side of the second support plate, the second linkage block being slidably connected to the left side of the flip cover, a first threaded sleeve fixedly connected to the inner side of the first extension box, and the first threaded sleeve being disposed on the rear side of the second linkage block.

[0012] Preferably, the top and bottom of the first extension box are fixedly connected with second threaded sleeves, the second threaded sleeves are disposed on the rear side of the second extension box, and the inner sides of the first threaded sleeve and the second threaded sleeve are both threaded with adjusting screws.

[0013] Preferably, the top of both the first support plate and the second support plate are fixedly connected with contact pads.

[0014] Preferably, a first positioning magnet is fixedly connected to the right side of the cable tie box, and a second positioning magnet is fixedly connected to the right side of the flip cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application effectively solves the problem of connecting FFC flexible flat cables to FFC interface modules by setting up a wiring fixing mechanism. In terms of anti-tangling, the combination of the limiting half hole at the bottom of the cable box and the straightening half hole inside the flip cover allows the thinner transmission end of the FFC flexible flat cable to be placed in it. The arrangement of the two limiting half holes allows the transmission ends of multiple flat cables to be distributed in an orderly manner, avoiding mutual tangling and realizing integrated limiting guidance. In terms of anti-loosening and sealing protection, after the flip cover is closed, the cable box and the flip cover fit together, and the bottom limiting half hole forms a complete limiting structure to prevent the thicker wiring end from falling off and being damaged. Twisting the adjusting screw drives the first support plate and the second support plate to slide, so that the straightening half hole straightens the transmission end of the flat cable and presses it up from the bottom, thereby strengthening the wiring stability and preventing loosening from the bottom. At the same time, the closed structure can also reduce dust intrusion to a certain extent and ensure reliable connection.

[0017] 2. This application, by setting up a sealing and protection mechanism, can achieve dynamic sealing and automatic reset by utilizing the cooperation of the sealing ring groove and the elastic sealing block, as well as the torsion spring structure linked by the extension shaft. When the flip cover is opened, the torsion spring accumulates rotational force, and at this time, the first positioning magnet and the second positioning magnet keep it in the open state for easy insertion. When the magnetic attraction is manually released, the torsion spring releases its elastic force to drive the flip cover to close quickly, so that the elastic sealing block on the rear side of the flip cover is precisely squeezed into the sealing ring groove on the front side of the cable box, forming a tight-fitting sealing structure, effectively preventing external dust from entering. At the same time, the automatic reset function of the torsion spring shortens the interface exposure time and reduces the probability of dust falling into the interior during insertion. Combined with the previous limiting and pressing, it further solves the problem of poor contact caused by dust accumulation. From the perspective of sealing and protection, it improves the overall reliability and ensures the long-term stable connection between the FFC flexible flat cable and the FFC interface module. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the flexible flat cable interface fixing device of this utility model;

[0019] Figure 2 This is an internal structural diagram of the flexible flat cable interface fixing device of this utility model;

[0020] Figure 3 This is an overall structural diagram of the wiring fixing mechanism of this utility model;

[0021] Figure 4 This is an overall structural diagram of the anti-loosening component of this utility model;

[0022] Figure 5 This is an overall structural diagram of the sealing and protection mechanism of this utility model.

[0023] In the diagram, 1. FFC interface module; 2. Wiring fixing mechanism; 21. Cable bundle box; 22. Flip cover; 23. Limiting half hole; 24. First support plate; 25. Second support plate; 26. Cable guide half hole; 27. Linkage slot; 28. Linkage plug; 29. ​​Anti-loosening component; 29a. First extension box; 29b. Second extension box; 29c. First linkage block; 29d. Second linkage block; 29e. First threaded sleeve; 29f. Second threaded sleeve; 29g. Adjusting screw; 3. Sealing and protection mechanism; 31. Elastic sealing block; 32. Sealing ring groove; 33. Protective shell; 34. Extension shaft; 35. Torsion spring; 4. FFC flexible flat cable; 5. Contact pad; 6. First positioning magnet; 7. Second positioning magnet. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] A flexible flat cable interface fixing device includes an FFC interface module 1, a wiring fixing mechanism 2 movably connected to the bottom of the FFC interface module 1, a sealing and protection mechanism 3 movably connected to the outside of the wiring fixing mechanism 2, and an FFC flexible flat cable 4 electrically connected to the bottom of the FFC interface module 1.

[0027] The wiring fixing mechanism 2 includes a cable bundle 21 fixedly connected to the bottom of the FFC interface module 1. A flip cover 22 is rotatably connected to the front side of the cable bundle 21. Limiting half holes 23 are opened at the bottom of both the cable bundle 21 and the flip cover 22. A first support plate 24 is slidably connected to the rear side of the inner side of the cable bundle 21. A second support plate 25 is slidably connected to the rear side of the inner side of the flip cover 22. A straight-line half hole 26 is opened on the inner side of both the first support plate 24 and the second support plate 25. A linkage slot 27 is opened on the front side of the first support plate 24. A linkage plug 28 is fixedly connected to the rear side of the second support plate 25. The linkage plug 28 is inserted into the inner side of the linkage slot 27. Anti-loosening components 29 are movably connected to the left side of both the cable bundle 21 and the flip cover 22.

[0028] In this embodiment: a protective structure consisting of a cable tie box 21 and a flip cover 22 is set at the bottom of the FFC interface module 1. The specific operation is as follows: Before inserting the FFC flexible flat cable 4, first rotate the flip cover 22 on the front side of the cable tie box 21 to fully open it. After the second positioning magnet 7 on the right side of the flip cover 22 is attracted to the first positioning magnet 6 on the right side of the cable tie box 21, the limiting is completed. Then, the thicker end of the FFC flexible flat cable 4 is inserted into the bottom of the FFC interface module 1 in sequence. When inserting, it is necessary to ensure that the thinner transmission end of the FFC flexible flat cable 4 is placed in the limiting half hole 23 at the bottom of the cable tie box 21 in sequence. Since the straight half hole 26 in the first support plate 24 overlaps with the limiting half hole 23 and is the same size, the transmission end of the FFC flexible flat cable 4 will also be located inside the straight half hole 26 in the first support plate 24. This ensures the transmission of the FFC flexible flat cable 4. After the end is positioned within the limiting half-hole 23 and the aligning half-hole 26 and is stably inserted into the FFC interface module 1, manually pull the flip cover 22 to disengage it from the first positioning magnet 6 and the second positioning magnet 7, allowing the flip cover 22 to close on the front side of the cable bundle box 21. At this time, the cable bundle box 21 and the front flip cover 22 are in contact, and the limiting half-holes 23 at the bottom of the two are spliced ​​together to form a complete limiting structure, which can prevent the thicker wiring end of the FFC flexible flat cable 4 from falling to the ground and causing damage. The transmission end of each FFC flexible flat cable 4 is arranged through the combination structure of two limiting half-holes 23, which can avoid mutual tangling. At the same time, the anti-loosening component 29 can standardize the wiring direction of the FFC flexible flat cable 4, strengthen the wiring stability, and prevent loosening from the bottom, ultimately achieving the anti-tangling, anti-loosening and fixing effect of the FFC interface module 1 and the FFC flexible flat cable 4.

[0029] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, the sealing and protection mechanism 3 includes an elastic sealing block 31 fixedly connected to the rear side of the flip cover 22 and the second extension box 29b. The front side of the cable tie box 21 and the first extension box 29a are provided with a sealing ring groove 32, and the elastic sealing block 31 is inserted into the inner side of the sealing ring groove 32.

[0030] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, a protective shell 33 is fixedly connected to the bottom of the cable tie box 21, and an extension shaft 34 is fixedly connected to the bottom of the flip cover 22. The extension shaft 34 is rotatably connected to the bottom of the cable tie box 21 and is located inside the protective shell 33.

[0031] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, a torsion spring 35 is fixedly connected to the outer side of the extension shaft 34, and the torsion spring 35 is fixedly connected to the inner side of the protective housing 33.

[0032] In this embodiment: On the corresponding sides of the flip cover 22 and the cable tie box 21, there are sealing ring grooves 32 on the front side of the cable tie box 21 and elastic sealing blocks 31 on the rear side of the flip cover 22. Since the bottom of the flip cover 22 at the rotation point is provided with an extension shaft 34 extending from its rotation axis, and the extension shaft 34 is fixedly connected to the inner side of the protective shell 33 at the bottom of the cable tie box 21 by a torsion spring 35, when the flip cover 22 is opened, it is positioned by the adsorption of the first positioning magnet 6 and the second positioning magnet 7, which facilitates insertion. At this time, the torsion spring 35 is in a state of accumulating rotational force. When the adsorption is manually released, the rotational force can drive the flip cover 22 to quickly close the front side of the cable tie box 21, and at the same time squeeze the elastic sealing block 31 into the sealing ring groove 32 to achieve stable fit and sealing protection. Furthermore, the torsion spring 35 quickly resets, shortening the contact time with the outside air and avoiding the problem of poor contact caused by dust accumulation inside.

[0033] Specifically, such as Figure 3 , Figure 4 As shown, the anti-loosening component 29 includes a first extension box 29a fixedly connected to the left side of the cable tie box 21, a second extension box 29b fixedly connected to the left side of the flip cover 22, a first linkage block 29c fixedly connected to the left side of the first support plate 24, the first linkage block 29c being slidably connected to the left side of the cable tie box 21, a second linkage block 29d fixedly connected to the left side of the second support plate 25, the second linkage block 29d being slidably connected to the left side of the flip cover 22, a first threaded sleeve 29e fixedly connected to the inner side of the first extension box 29a, and the first threaded sleeve 29e being disposed on the rear side of the second linkage block 29d.

[0034] Specifically, such as Figure 3 , Figure 4 As shown, the top and bottom of the first extension box 29a are fixedly connected with the second threaded sleeve 29f, the second threaded sleeve 29f is located on the rear side of the second extension box 29b, and the inner sides of the first threaded sleeve 29e and the second threaded sleeve 29f are both threadedly connected with the adjusting screw 29g.

[0035] In this embodiment: the linkage plug 28 and the linkage slot 27 are interlocked when rotated and closed to form a complete integral structure. At this time, the straight-line half-holes 26 inside both will also be combined into a whole. Since the straight-line half-hole 26 overlaps with the limiting half-hole 23, the transmission end of the FFC flexible flat cable will be inside the two combined straight-line half-holes 26. In this state, rotating the adjusting screw 29g located at the bottom of the first extension box 29a will drive the first linkage block 29c, which has the first threaded sleeve 29e built into the left side of the first support plate 24, to slide upward. Although there is no internal connection between the second linkage block 29d and the first extension box 29a, the first linkage block 29c inside the first threaded sleeve 29e will slide upward. The structure is threaded, but because the first support plate 24 and the second support plate 25 form a linkage unit through the linkage plug 28 and the linkage slot 27, the second linkage block 29d will slide upward as the first linkage block 29c is raised. In this way, by twisting the adjusting screw 29g, the first support plate 24 and the second support plate 25 can be driven to slide upward along the extension box. Then, the straightening half hole 26 inside the two can be used to straighten the FFC soft flat cable transmission end in the path. When the bottom of the FFC soft flat cable terminal is pressed and lifted from the bottom, the adjustment is stopped. This operation can not only ensure the correct wiring direction of the FFC soft flat cable and strengthen its wiring stability, but also limit it from the bottom and prevent the problem of the flat cable loosening.

[0036] Specifically, such as Figure 2 As shown, the tops of the first support plate 24 and the second support plate 25 are both fixedly connected with contact pads 5.

[0037] Specifically, such as Figure 1 As shown, a first positioning magnet 6 is fixedly connected to the right side of the cable tie box 21, and a second positioning magnet 7 is fixedly connected to the right side of the flip cover 22.

[0038] In this embodiment: the contact pad 5 can reduce the damage to the bottom of the FFC flexible flat cable 4 terminal caused by the first support plate 24 and the second support plate 25 tightening, and the first positioning magnet 6 and the second positioning magnet 7 facilitate the positioning of the flip cover 22 in the open and closed state.

[0039] Working Principle: When connecting the bottom FFC interface module 1 (used for wiring industrial products, home digital products, etc.) to the FFC flexible flat cable 4, to avoid the problems of wire tangling and loosening of the interface, a protective structure consisting of a cable tie box 21 and a flip cover 22 is set at the bottom of the FFC interface module 1. Before inserting the FFC flexible flat cable 4, the flip cover 22 on the front side of the cable tie box 21 is rotated to fully open it. The second positioning magnet 7 on the right side of the flip cover 22 is attracted to the first positioning magnet 6 on the right side of the cable tie box 21 to complete the positioning. The thicker wires of the FFC flexible flat cable 4 are then inserted into the bottom of the FFC interface module 1 in sequence, and during the insertion process, it is ensured that the thinner transmission ends of the FFC flexible flat cable 4 are positioned in the cable tie box 21 in sequence. Inside the bottom limiting half-hole 23, and because the aligning half-hole 26 in the first support plate 24 overlaps with and is the same size as the limiting half-hole 23, the transmission end of the FFC flexible flat cable 4 is also located inside the aligning half-hole 26 of the first support plate 24. After ensuring that it is in the limiting half-hole 23 and the aligning half-hole 26 in sequence, and after it is stably plugged into the FFC interface module 1, manually pull the flip cover 22 to disengage from the first positioning magnet 6 and the second positioning magnet 7, and close the flip cover 22 to the front of the cable tie box 21. At this time, the cable tie box 21 and the front flip cover 22 fit together with the bottom limiting half-hole 23 to form a complete limiting structure, thus preventing the thicker connector of the FFC flexible flat cable 4 from falling to the ground and causing damage. Each FFC flexible flat cable 4 has its transmission end arranged through a combination of two limiting half-holes 23 to prevent them from tangling. Simultaneously, during the closing process, the first support plate 24 inside the cable bundle 21 and the second support plate 25 inside the flip cover 22 are connected via a linkage plug 28 and a linkage slot 27 to form a complete unit during rotational closing. The internal aligning half-holes 26 also form a unit, and because they overlap with the limiting half-holes 23, the transmission end of the FFC flexible flat cable 4 is also located inside the two combined aligning half-holes 26. In this state, by twisting the adjusting screw 29g located at the bottom of the first extension box 29a, the adjusting screw 29g is connected to the inside of the first extension box 29a through the second threaded sleeve 29f, and is driven during rotation. The first linkage block 29c, with its built-in first threaded sleeve 29e, slides upward on the left side of the first support plate 24. While the second linkage block 29d lacks a built-in threaded structure, the first support plate 24 and the second support plate 25 form a linked unit via the linkage insert 28 and the linkage slot 27. Therefore, the second linkage block 29d slides upward along with the first linkage block 29c. This, in turn, by twisting the adjusting screw 29g, causes the first support plate 24 and the second support plate 25 to slide upward along the extension box. This, in turn, causes the internally assembled straightening half-hole 26 to straighten the transmission end of the FFC flexible flat cable 4, pressing and lifting the bottom of the FFC flexible flat cable 4's connector before stopping the adjustment. This ensures the wiring direction of the FFC flexible flat cable 4 and strengthens its wiring stability.To prevent loosening, the bottom is positioned to prevent tangling, loosening, and secure the FFC interface module 1 and the FFC flexible cable 4. Furthermore, to further enhance the fit between the flip cover 22 and the cable tie box 21, a sealing ring groove 32 is provided on the front side of the cable tie box 21, and an elastic sealing block 31 is provided on the rear side of the flip cover 22. Additionally, an extension shaft 34, extending from the rotation axis, is provided at the bottom of the flip cover 22's rotation point, and this extension shaft 34 is fixedly connected to the inner side of the protective outer shell 33 at the bottom of the cable tie box 21 by a torsion spring 35. Therefore, when the flip cover 22 is opened and positioned by the first positioning magnet 6 and the second positioning magnet 7 for easy insertion, the torsion spring 35 is in a state of accumulating rotational force. When manually contacted for adsorption, the rotational force causes the flip cover 22 to quickly close the front of the cable tray 21, squeezing the elastic sealing block 31 into the sealing ring groove 32, achieving stable fit and sealing protection. The torsion spring 35 then quickly resets, reducing the time of contact with outside air and preventing poor contact caused by internal dust accumulation. In summary, this optimizes the usage process of the FFC interface module 1 and the FFC flexible flat cable 4.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. A flexible flat cable interface fixing device, comprising an FFC interface module (1), characterized in that: The bottom of the FFC interface module (1) is movably connected to a wiring fixing mechanism (2), the outside of the wiring fixing mechanism (2) is movably connected to a sealing protection mechanism (3), and the bottom of the FFC interface module (1) is electrically connected to an FFC flexible flat cable (4). The wiring fixing mechanism (2) includes a cable tie box (21) fixedly connected to the bottom of the FFC interface module (1). A flip cover (22) is rotatably connected to the front side of the cable tie box (21). Limiting half holes (23) are opened at the bottom of both the cable tie box (21) and the flip cover (22). A first support plate (24) is slidably connected to the rear side of the inner side of the cable tie box (21). A second support plate (25) is slidably connected to the rear side of the inner side of the flip cover (22). A straight-line half hole (26) is opened on the inner side of both the first support plate (24) and the second support plate (25). A linkage slot (27) is opened on the front side of the first support plate (24). A linkage plug (28) is fixedly connected to the rear side of the second support plate (25). The linkage plug (28) is inserted into the inner side of the linkage slot (27). Anti-loosening components (29) are movably connected to the left side of both the cable tie box (21) and the flip cover (22).

2. The flexible flat cable interface fixing device according to claim 1, characterized in that: The sealing and protective mechanism (3) includes an elastic sealing block (31) fixedly connected to the rear side of the flip cover (22) and the second extension box (29b). The front side of the cable tie box (21) and the first extension box (29a) is provided with a sealing ring groove (32), and the elastic sealing block (31) is inserted into the inner side of the sealing ring groove (32).

3. The flexible flat cable interface fixing device according to claim 2, characterized in that: The bottom of the cable tie box (21) is fixedly connected to a protective shell (33), and the bottom of the flip cover (22) is fixedly connected to an extension shaft (34). The extension shaft (34) is rotatably connected to the bottom of the cable tie box (21), and the extension shaft (34) is located inside the protective shell (33).

4. The flexible flat cable interface fixing device according to claim 3, characterized in that: A torsion spring (35) is fixedly connected to the outside of the extension shaft (34), and the torsion spring (35) is fixedly connected to the inside of the protective shell (33).

5. The flexible flat cable interface fixing device according to claim 1, characterized in that: The anti-loosening component (29) includes a first extension box (29a) fixedly connected to the left side of the cable tie box (21), a second extension box (29b) fixedly connected to the left side of the flip cover (22), a first linkage block (29c) fixedly connected to the left side of the first support plate (24), the first linkage block (29c) being slidably connected to the left side of the cable tie box (21), a second linkage block (29d) fixedly connected to the left side of the second support plate (25), the second linkage block (29d) being slidably connected to the left side of the flip cover (22), a first threaded sleeve (29e) fixedly connected to the inner side of the first extension box (29a), and the first threaded sleeve (29e) being disposed on the rear side of the second linkage block (29d).

6. The flexible flat cable interface fixing device according to claim 5, characterized in that: The top and bottom of the first extension box (29a) are fixedly connected with a second threaded sleeve (29f), the second threaded sleeve (29f) is located on the rear side of the second extension box (29b), and the inner sides of the first threaded sleeve (29e) and the second threaded sleeve (29f) are both threaded with an adjusting screw (29g).

7. The flexible flat cable interface fixing device according to claim 1, characterized in that: The top of the first support plate (24) and the second support plate (25) are both fixedly connected with contact pads (5).

8. The flexible flat cable interface fixing device according to claim 1, characterized in that: The right side of the cable tie box (21) is fixedly connected to a first positioning magnet (6), and the right side of the flip cover (22) is fixedly connected to a second positioning magnet (7).

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