Cable with good flame retardance

Abstract

The utility model discloses a cable with good flame retardance, which comprises a first cable body and a movable rod, one side of the first cable body is connected with a second cable body, the outer wall of one end of the first cable body and the outer wall of one end of the second cable body are sleeved with sleeves, the outer wall of the top end of each sleeve is connected with a protruding strip, the surface of each protruding strip is provided with a sliding groove, and the sliding grooves are communicated with the movable rod. Sliding blocks are arranged in the sliding grooves, the movable rods are slidably connected with the protruding strips through the sliding blocks, the top ends of the movable rods are fixedly connected with correction rings, and fastening mechanisms are arranged on the inner walls of the sleeves. According to the cable with good flame retardance, through the arrangement of the fastening mechanism, the telescopic spring generates elastic deformation after the fastening ring is extruded, and the sleeve can be installed on the outer wall of the cable body connection by matching with the shape of the fastening ring, so that the protection and installation of the cable body connection can be ensured, and the cable body can be prevented from being broken by pulling during use.

Description

Technical Field

[0001] The utility model relates to the technical field related to cables with good flame retardancy, in particular to a cable with good flame retardancy. Background Art

[0002] Cable refers to a conductor with an insulating layer and a protective sheath, which is composed of multiple insulated conductors. It is often hung in the air or installed underground or underwater for telecommunications or power transmission.

[0003] A cable head insulation glue reinforced cable is disclosed in the Chinese authorized patent announcement number CN214203244U, including a cable branch head, a wire core is connected to the top of the cable branch head, and the outside of the wire core is wrapped with an insulating tape, the outside of the insulating tape is wrapped with asphalt insulation glue, and the outside of the asphalt insulation glue is connected to a sealing tube, the top of the sealing tube is connected to a terminal, and the bottom of the terminal is internally connected to the wire core, a limited separation terminal is installed on the outside of the sealing tube, and the bottom of the sealing tube is externally connected to a connecting cover, the lower outside of the connecting cover is embedded and connected with a sealing lower cover, and the sealing lower cover is located on the outside of the cable branch head. The cable head insulation glue reinforced cable can perform multiple insulation protection on the wire core in the sealing tube, improve the insulation effect, reinforce the insulation glue position of the cable head, and improve the insulation performance of the cable head.

[0004] However, the above-mentioned cable head insulation adhesive reinforced cables all use a wrapping tape to fix the cable connection after the cable is broken, which is not convenient for users to protect the cable connection, making the cable prone to breakage again after being pulled. Utility Model Content

[0005] The purpose of the utility model is to provide a cable with good flame retardancy to solve the problem proposed in the above-mentioned background technology that after the cable is broken, the cable connection is fixed by winding tape, which is not convenient for users to protect the cable connection and makes the cable easy to break again after being pulled.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cable with good flame retardancy, comprising a first cable body and a movable rod, wherein one side of the first cable body is connected to the second cable body, and the outer walls of one end of the first cable body and the second cable body are both sleeved and installed with a sleeve, and the top outer wall of the sleeve is connected to a convex strip, and a sliding groove is provided on the surface of the convex strip, and a sliding block is provided inside the sliding groove, and the movable rod is slidably connected to the convex strip through the sliding block, and the top of the movable rod is fixedly connected to a correction ring, and the inner wall of the sleeve is provided with a fastening mechanism.

[0007] Preferably, the outer rings of the first cable body and the second cable body are both provided with a flame retardant layer, and the material of the flame retardant layer is polyvinyl chloride.

[0008] Preferably, the inner wall of the correction ring is connected with a connecting block, and a through hole is provided on the surface of the connecting block, a connecting rod is installed inside the through hole, and the outer wall of the connecting rod is threaded.

[0009] Preferably, the surfaces of the sleeve and the correction ring are provided with air circulation holes, and the air circulation holes are evenly arranged, and dust filters are installed inside the air circulation holes.

[0010] Preferably, the fastening mechanism comprises a telescopic spring and a fastening ring, and the inner wall of the telescopic spring is fixedly connected to the inner wall of the sleeve, the end of the telescopic spring is connected to the fastening ring, and the telescopic spring and the fastening ring are symmetrically arranged with respect to the central axis of the sleeve.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The cable with good flame retardancy is provided with a flame retardant layer, and the material of the flame retardant layer is polyvinyl chloride. Since polyvinyl chloride is cheap, has good insulation performance and good flame retardancy, the flame retardancy of the cable is not only strong in practicality but also has extremely high flame retardancy;

[0013] 2. The cable with good flame retardancy has a movable rod and a correction ring. The movable rod slides left and right inside the slide groove through a slider to adjust the position of the correction ring. At the same time, the correction ring can protect the cable connection port after the repair connection to avoid the winding of traditional tape. It is not only beautiful but also not easy to break again at the interface. The air circulation hole can dissipate heat for the cable connection port. At the same time, the dust filter can prevent particles in the air from entering the air circulation hole, and can also prevent the air circulation hole from being blocked.

[0014] 3. The cable with good flame retardancy has a fastening mechanism. When the fastening ring is squeezed, the telescopic spring undergoes elastic deformation, and the sleeve can be installed on the outer wall of the cable body connection in accordance with the shape of the fastening ring, thereby ensuring the protection and installation of the cable body connection and preventing the cable body from being broken due to pulling during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the fastening mechanism structure of the utility model;

[0017] Figure 3 This is a side view structural diagram of the correction ring of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure in which the cable body and the flame retardant layer cooperate with each other in the utility model.

[0019] In the figure: 1, first cable body; 101, flame retardant layer;

[0020] 2. Second cable body; 3. Sleeve; 4. Raised strip; 5. Slide groove; 6. Movable rod; 7. Correction ring; 8. Connecting block; 9. Connecting rod; 10. Air circulation hole;

[0021] 11. Fastening mechanism; 1101. Telescopic spring; 1102. Fastening ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a cable with good flame retardancy, comprising a first cable body 1, a flame retardant layer 101, a second cable body 2, a sleeve 3, a convex strip 4, a slide groove 5, a movable rod 6, a correction ring 7, a connecting block 8, a connecting rod 9, an air circulation hole 10, a fastening mechanism 11, a telescopic spring 1101 and a fastening ring 1102;

[0024] One side of the first cable body 1 is connected to the second cable body 2. The outer rings of the first cable body 1 and the second cable body 2 are both provided with a flame retardant layer 101, and the material of the flame retardant layer 101 is polyvinyl chloride. Since polyvinyl chloride is cheap, has good insulation performance and good flame retardancy, the flame retardant performance of the cable is not only strong in practicality but also extremely high in flame retardancy.

[0025] The outer wall of one end of the first cable body 1 and the second cable body 2 are both sleeved with a sleeve 3, the outer wall of the top end of the sleeve 3 is connected with a convex strip 4, the surface of the convex strip 4 is provided with a slide groove 5, and a sliding block is provided inside the slide groove 5, and a movable rod 6 is slidably connected to the convex strip 4 through the sliding block, and a correction ring 7 is fixedly connected to the top of the movable rod 6, and a connecting block 8 is connected to the inner wall of the correction ring 7, and a through hole is provided on the surface of the connecting block 8, and a connecting rod 9 is installed inside the through hole, and the outer wall of the connecting rod 9 is threaded, and the surfaces of the sleeve 3 and the correction ring 7 are provided with air circulation holes 10. The air circulation holes 10 are evenly arranged, and a dust filter is installed inside the air circulation holes 10. The movable rod 6 slides left and right inside the slide groove 5 through the slider, and the position of the correction ring 7 can be adjusted. At the same time, the correction ring 7 can protect the cable connection port after the repair connection to avoid the winding of the traditional tape. Not only is the performance aesthetic, but the interface is not easy to break again. The air circulation holes 10 can dissipate heat for the cable connection port. At the same time, the dust filter can prevent particles in the air from entering the air circulation holes 10, and can also prevent the air circulation holes 10 from being blocked.

[0026] A fastening mechanism 11 is provided on the inner wall of the sleeve 3, and the fastening mechanism 11 includes a telescopic spring 1101 and a fastening ring 1102. The inner wall of the telescopic spring 1101 is fixedly connected to the inner wall of the sleeve 3, and the end of the telescopic spring 1101 is connected to the fastening ring 1102. The telescopic spring 1101 and the fastening ring 1102 are symmetrically arranged with respect to the central axis of the sleeve 3. When the fastening ring 1102 is squeezed, the telescopic spring 1101 undergoes elastic deformation, and the sleeve 3 can be installed at the outer wall of the cable body connection in accordance with the shape of the fastening ring 1102, which can ensure the protection and installation of the cable body connection, and can also prevent the cable body from being broken due to pulling during use.

[0027] Working principle: For this type of cable with good flame retardancy, first, the outer ring of the cable body is provided with a flame retardant layer 101. Since the material of the flame retardant layer 101 is polyvinyl chloride, which is cheap, has good insulation performance and good flame retardancy, the flame retardant performance of the cable is not only strong in practical performance but also has extremely high flame retardancy. Then, when the cable is disconnected or two sections of the cable need to be connected, the sleeve 3 and the correction ring 7 can be respectively installed at one end of the connection between the first cable body 1 and the second cable body 2. At this time, the fastening ring 1102 is tightened under the elastic expansion and contraction action of the telescopic spring 1101. The ring 1102 fits tightly at one end of the connection between the first cable body 1 and the second cable body 2, and then the correction ring 7 is moved close to the connection between the first cable body 1 and the second cable body 2 through the slider until the correction rings 7 fit each other, and then the connecting rod 9 is embedded in the groove of the connecting block 8 on the inner wall of the correction ring 7, and the correction rings 7 are tightened by the nut. Finally, because the surfaces of the sleeve 3 and the correction ring 7 are penetrated by air circulation holes 10, the cable connection port can be dissipated to avoid affecting the working performance of the cable after connection, thus completing the entire use process of the flame retardant cable.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable with good flame retardancy, comprising a first cable body (1) and a movable rod (6), characterized in that: One side of the first cable body (1) is connected to the second cable body (2); one end of the first cable body (1) and the second cable body (2) are both sleeved with a sleeve (3); the top outer wall of the sleeve (3) is connected to a convex strip (4); a sliding groove (5) is provided on the surface of the convex strip (4); a sliding block is provided inside the sliding groove (5); the movable rod (6) is slidably connected to the convex strip (4) via the sliding block; the top end of the movable rod (6) is fixedly connected to a correction ring (7); and the inner wall of the sleeve (3) is provided with a fastening mechanism (11).

2. A flame retardant cable according to claim 1, characterized in that: The outer rings of the first cable body (1) and the second cable body (2) are both provided with a flame retardant layer (101), and the material of the flame retardant layer (101) is polyvinyl chloride.

3. A flame retardant cable according to claim 1, characterized in that: The inner wall of the correction ring (7) is connected to a connection block (8), and a through hole is provided on the surface of the connection block (8), a connection rod (9) is installed inside the through hole, and the outer wall of the connection rod (9) is arranged in a threaded shape.

4. A flame retardant cable according to claim 1, characterized in that: Air circulation holes (10) are provided on the surfaces of the sleeve (3) and the correction ring (7), and the air circulation holes (10) are evenly arranged. A dust filter is installed inside the air circulation holes (10).

5. The cable with good flame retardancy according to claim 1, characterized in that: The fastening mechanism (11) comprises a telescopic spring (1101) and a fastening ring (1102), wherein the inner wall of the telescopic spring (1101) is fixedly connected to the inner wall of the sleeve (3), the end of the telescopic spring (1101) is connected to the fastening ring (1102), and the telescopic spring (1101) and the fastening ring (1102) are both symmetrically arranged about the central axis of the sleeve (3).

Images