Fireproof cable

Abstract

The utility model relates to the technical field of cables, and discloses a fireproof cable which comprises a fireproof cable body and a protection box, a buffer mechanism is arranged in the protection box, and the buffer mechanism comprises a fixed spring, a fixed cylinder, a fixed ring, a movable block, a sliding block, a sliding groove, a pressing block and an auxiliary spring. According to the fireproof cable, through the arrangement of the buffer mechanism, when the cable is pulled by the outside, the fireproof cable body and the movable block horizontally move together to drive the sliding block to slide on the sliding groove, so that the pressing block compresses the auxiliary spring, the auxiliary spring buffers a part of pulling force after being compressed, and the fireproof cable body is straightened after being pulled in the protection box; and after the pulling force disappears, the fixed spring enables the fireproof cable body to return to the original position, an external movable door can be opened for replacement when the fireproof cable body is replaced, and the buffering mechanism can slow down the external pulling acting force, prevent the cable from being broken and conveniently deal with the external sudden acting force condition.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a fireproof cable. Background Art

[0002] Fireproof cables. At present, the most widely used fireproof cables are mainly UL series flame-retardant cables and flame-retardant low-smoke halogen-free cables. As one of the world's most important cable product research and development and production bases, China currently has a series of cable products with unique properties and special structures, such as flame retardant and fire-resistant, high and low temperature resistant, low inductance and low noise, green and environmentally friendly, low smoke and halogen-free, ant and rodent resistant, waterproof and moisture-proof, and have formed a certain productivity.

[0003] After searching, a fireproof cable in the Chinese utility model patent with patent number CN219018002U relates to the technical field of cables, which includes several core wires and an insulating sleeve arranged on the outside of the core wires. The end of the cable is provided with a protective component, and the protective component includes a protective cover and a protective seat. The protective cover is snap-fitted with the protective seat. The protective cover and the protective seat are fixedly connected with protective protruding rings on the inner walls near the openings at both ends, and absorbent cotton is arranged between the protective protruding rings. The present application, through the arrangement of the above-mentioned protective component, while ensuring the connection stability of the two cable connections, also prevents external moisture or dust from entering the interior of the cable connection, thereby enhancing the waterproof or dustproof performance of the cable connection. Although the structure can enhance the waterproof or dustproof performance of the cable connection, the cable connection or the cable itself is prone to breakage under sudden external pulling. Therefore, a fireproof cable is proposed that can reduce the external pulling force, avoid cable breakage, and facilitate response to sudden external force situations. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a fire-resistant cable, which has the advantages of being able to reduce external pulling force, avoid cable breakage, and facilitate coping with sudden external forces. It solves the problem that the cable in the Chinese utility model patent with patent number CN219018002U is easily broken at the cable connection or the cable itself due to sudden external collision and pulling.

[0005] In order to achieve the above-mentioned purpose of slowing down the external pulling force, avoiding the cable from breaking, and facilitating the response to sudden external forces, the present invention provides the following technical solutions: a fireproof cable comprising a fireproof cable body and a protection box, wherein a buffer mechanism is provided inside the protection box;

[0006] The buffer mechanism includes a fixed spring, a fixed cylinder, a fixed ring, a movable block, a slider, a slide groove, a pressure block and an auxiliary spring. A fixed spring is provided inside the protection box, a fixed cylinder is fixedly installed on the outside of the fixed spring, a fixed ring is fixedly installed on the outside of the protection box, a movable block is fixedly installed on the outside of the fire-proof cable body, a slider is fixedly installed on the outside of the movable block, a slide groove is provided on the outside of the protection box, a pressure block is fixedly installed on the bottom of the movable block, and an auxiliary spring is fixedly installed on the right side of the pressure block.

[0007] Furthermore, a movable door is hinged on the outside of the protection box, and a key lock is provided on the outside of the movable door.

[0008] Furthermore, movable holes adapted to the fireproof cable body are provided on both the left and right sides of the protection box.

[0009] Furthermore, a slide is fixedly mounted on the bottom of the pressing block, and a guide rail adapted to the slide is provided inside the protection box.

[0010] Furthermore, a fixing plate is fixedly installed on the inner wall of the protection box, a fixing spring is fixedly installed on the top of the fixing plate, and the fixing spring is fixedly connected to the protection box through the fixing plate.

[0011] Furthermore, the left side of the auxiliary spring is fixedly connected to the pressure block, and the right side of the auxiliary spring is fixedly connected to the inner wall of the protection box.

[0012] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0013] The fireproof cable is provided with a buffer mechanism. When the cable is pulled by the outside, the fireproof cable body and the movable block move horizontally together, driving the slider to slide on the slide groove, so that the pressure block compresses the auxiliary spring. After the auxiliary spring is compressed, a part of the pulling force is buffered. Inside the protective box, the fireproof cable body is straightened after being pulled, and the fixed spring is pressed to tilt, thereby buffering another part of the pulling force. After the pulling force disappears, the fixed spring restores the fireproof cable body to its original position. When replacing the fireproof cable body, the external movable door can be opened for replacement. The buffer mechanism can reduce the external pulling force and avoid cable breakage, which is convenient for responding to sudden external forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the structure of the utility model;

[0015] Figure 2 This is a front sectional view of the structure of the utility model;

[0016] Figure 3 For the utility model structure Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 It is a partial three-dimensional diagram of the structure of the utility model.

[0018] In the figure: 1. Fireproof cable body; 2. Protection box; 3. Buffer mechanism; 301. Fixed spring; 302. Fixed cylinder; 303. Fixed ring; 304. Movable block; 305. Slider; 306. Slide groove; 307. Pressing block; 308. Auxiliary spring; 4. Movable door; 401. Key lock; 5. Movable hole; 6. Slide plate; 601. Guide rail; 7. Fixed plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 In this embodiment, a fireproof cable comprises a fireproof cable body 1 and a protection box 2, wherein a buffer mechanism 3 is provided inside the protection box 2;

[0021] The buffer mechanism 3 includes a fixed spring 301, a fixed cylinder 302, a fixed ring 303, a movable block 304, a slider 305, a slide groove 306, a pressure block 307 and an auxiliary spring 308. The protective box 2 is provided with a fixed spring 301 inside, the fixed spring 301 is fixedly installed on the outside of the fixed spring 302, the protective box 2 is fixedly installed on the outside of the fixed ring 303, the fire-proof cable body 1 is fixedly installed on the outside of the movable block 304, the slider 305 is fixedly installed on the outside of the movable block 304, the protective box 2 is provided with a slide groove 306, the bottom of the movable block 304 is fixedly installed with a pressure block 307, and the right side of the pressure block 307 is fixedly installed with an auxiliary spring 308.

[0022] In the case implementation, a movable door 4 is hinged on the outside of the protection box 2, and a key lock 401 is provided on the outside of the movable door 4. By providing the movable door 4 and the key lock 401, it is convenient for maintenance personnel to open the protection box 2 for inspection.

[0023] In the case implementation, movable holes 5 that are compatible with the fireproof cable body 1 are opened on the left and right sides of the protection box 2. By setting the movable holes 5, the fireproof cable body 1 can be movable inside the protection box 2.

[0024] In the case implementation, a slide 6 is fixedly installed on the bottom of the pressing block 307, and a guide rail 601 adapted to the slide 6 is provided inside the protective box 2. The setting of the slide 6 and the guide rail 601 can assist the movable block 304 to move horizontally.

[0025] In the case implementation, a fixing plate 7 is fixedly installed on the inner wall of the protection box 2, and a fixing spring 301 is fixedly installed on the top of the fixing plate 7. The fixing spring 301 is fixedly connected to the protection box 2 through the fixing plate 7. By setting the fixing plate 7, the fixing spring 301 can be fixed to the inner wall of the protection box 2, so that the fire-proof cable body 1 can press the fixing spring 301 to reduce the external pulling force when it is pulled by the outside world.

[0026] During implementation, follow these steps:

[0027] 1) When the cable is pulled by the outside world, the fire-resistant cable body 1 and the movable block 304 move horizontally together;

[0028] 2) Then the slider 305 is driven to slide on the slide groove 306, so that the pressure block 307 compresses the auxiliary spring 308. After the auxiliary spring 308 is compressed, it buffers part of the tension. Inside the protection box 2, the fire-resistant cable body 1 is pulled and straightened;

[0029] 3) Press the fixing spring 301 and the fixing cylinder 302 to tilt, buffering another part of the tension, and after the tension disappears;

[0030] 4) Finally, the spring 301 is fixed to restore the fireproof cable body 1 to its original position. When the fireproof cable body 1 is replaced, the external movable door 4 can be opened for replacement.

[0031] To sum up, the fireproof cable is provided with a buffer mechanism 3. When the cable is pulled by the outside, the fireproof cable body 1 and the movable block 304 move horizontally together, driving the slider 305 to slide on the slide groove 306, so that the pressure block 307 compresses the auxiliary spring 308. After the auxiliary spring 308 is compressed, a part of the tension is buffered. Inside the protective box 2, the fireproof cable body 1 is straightened after being pulled, and the fixed spring 301 is pressed to tilt, thereby buffering another part of the tension. After the tension disappears, the fixed spring 301 restores the fireproof cable body 1 to its original position. When replacing the fireproof cable body 1, the external movable door 4 can be opened for replacement. The buffer mechanism 3 can slow down the external pulling force, avoid cable breakage, and facilitate response to external sudden force situations.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fireproof cable, comprising a fireproof cable body (1) and a protection box (2), characterized in that: A buffer mechanism (3) is provided inside the protection box (2); The buffer mechanism (3) comprises a fixed spring (301), a fixed cylinder (302), a fixed ring (303), a movable block (304), a slider (305), a slide groove (306), a pressure block (307) and an auxiliary spring (308); the interior of the protection box (2) is provided with a fixed spring (301); the exterior of the fixed spring (301) is fixedly mounted with a fixed cylinder (302); the exterior of the protection box (2) is fixedly mounted with a fixed ring (303); the exterior of the fireproof cable body (1) is fixedly mounted with a movable block (304); the exterior of the movable block (304) is fixedly mounted with a slider (305); the exterior of the protection box (2) is provided with a slide groove (306); the bottom of the movable block (304) is fixedly mounted with a pressure block (307); and the right side of the pressure block (307) is fixedly mounted with an auxiliary spring (308).

2. A fireproof cable according to claim 1, characterized in that: A movable door (4) is hinged on the outside of the protection box (2), and a key lock (401) is provided on the outside of the movable door (4).

3. A fireproof cable according to claim 1, characterized in that: Both left and right sides of the protection box (2) are provided with movable holes (5) adapted to the fireproof cable body (1).

4. A fireproof cable according to claim 1, characterized in that: A slide plate (6) is fixedly mounted on the bottom of the pressing block (307), and a guide rail (601) adapted to the slide plate (6) is provided inside the protection box (2).

5. The fireproof cable according to claim 1, characterized in that: A fixing plate (7) is fixedly mounted on the inner wall of the protection box (2), a fixing spring (301) is fixedly mounted on the top of the fixing plate (7), and the fixing spring (301) is fixedly connected to the protection box (2) via the fixing plate (7).

6. A fireproof cable according to claim 1, characterized in that: The left side of the auxiliary spring (308) is fixedly connected to the pressing block (307), and the right side of the auxiliary spring (308) is fixedly connected to the inner wall of the protection box (2).

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