Insulating flame-retardant cable sleeve

Abstract

The utility model provides an insulating flame-retardant cable sleeve, and belongs to the technical field of cable sleeves. The insulating flame-retardant cable sleeve comprises a sleeve body and a connecting mechanism, a connecting ring is fixedly installed on the left side of the sleeve body, a butt joint ring is fixedly installed on the right side of the sleeve body, a butt joint groove is formed in the left side of the connecting ring, an attaching ring is fixedly installed on the inner wall of the connecting ring, and a moving block is installed on the inner wall of the connecting ring. By arranging the connecting rings, the butt joint rings and the connecting mechanisms, the connecting mechanisms can be installed after the connecting rings are installed, and when a user needs to connect multiple sets of casing pipe bodies, the butt joint rings on the adjacent casing pipe bodies on the left side are connected with the connecting mechanisms in a matched mode; and by adopting a splicing mode, not only can cable sections with different lengths be adapted, but also cables with different diameters can be adapted, and the cables can be conveniently limited and protected.

Description

Technical Field

[0001] The utility model relates to the technical field of cable sleeves, in particular to an insulating flame-retardant cable sleeve. Background Art

[0002] A wire that transmits electricity or information from one place to another, made of one or more mutually insulated conductors and an outer insulating protective layer. Cables are usually rope-like cables made of several or several groups of wires twisted together. Each group of wires is insulated from each other and often twisted around a center. The entire outer layer is covered with a highly insulating covering layer. The cable has the characteristics of internal power and external insulation. With the rapid development of underground power cable laying projects, higher requirements are put forward for cable casings. Cable casings are suitable for telecommunications, power engineering, transportation, urban construction and other fields. There are generally two types of casings: steel protective tubes and plastic tubes. Steel protective tubes are divided into thin-walled tubes and thick-walled tubes, and galvanized and non-galvanized; plastic tubes are generally made of polyvinyl chloride plastic or U-PVC, and are available in ordinary and flame-retardant types. They are cheaper than metal tubes, easy to construct, and will not rust.

[0003] However, the cables and cable sleeves in the prior art are generally directly sleeved on the surface of the cable to fit the cable, or the cable sleeve is large and the contact area between the cable and the cable sleeve is too small. When the diameter of the cable sleeve is larger than the diameter of the cable, the sleeve cannot fit the surface of the cable, causing the cable to move in the sleeve when it is pulled again. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides an insulating flame-retardant cable sleeve that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The utility model provides an insulated flame-retardant cable bushing, comprising a bushing body, a connecting ring is fixedly installed on the left side of the bushing body, and a docking ring is fixedly installed on the right side of the bushing body;

[0007] A connecting mechanism, the connecting mechanism comprising:

[0008] A docking groove, the docking groove is arranged on the left side of the connecting ring;

[0009] A fitting ring, the fitting ring is fixedly mounted on the inner wall of the connecting ring;

[0010] The moving blocks are installed on the inner wall of the connecting ring, and four groups of the moving blocks are provided.

[0011] In a preferred solution, a threaded barrel is fixedly mounted on the right side of the docking ring, and the threaded barrel is at the same height as the docking groove.

[0012] In a preferred solution, the moving block is arranged in an arc shape, a first fitting pad is fixedly installed on the inner side of the moving block, a second fitting pad is fixedly installed on the inner side of the moving block, and the second fitting pad is located on the right side of the first fitting pad.

[0013] In a preferred solution, a movable groove is provided on the right side of the fitting ring, and the movable groove is provided in four groups. A movable plate is fixedly mounted on the front side of the movable block, and the movable plate is slidably matched with the movable groove.

[0014] In a preferred solution, a tension spring is fixedly mounted on the inner wall of the movable groove, and the top end of the tension spring is fixedly connected to the bottom end of the movable plate.

[0015] In a preferred solution, through holes are provided on the surface of the connecting ring, and four groups of through holes are provided. A fitting sleeve is fixedly installed on the inner wall of the through hole.

[0016] In a preferred solution, an insert rod is inserted into the inner wall of the fitting sleeve, and the inner side of the insert rod is in contact with the surface of the moving block.

[0017] In a preferred solution, the first fitting pad and the second fitting pad are both made of rubber material, and the first fitting pad and the second fitting pad are fluororubber.

[0018] The insulating flame-retardant cable sleeve provided by the utility model has the following beneficial effects:

[0019] 1. By setting the connecting ring, the docking ring and the connecting mechanism, the connecting mechanism can be installed after the connecting ring is installed, so that when the user needs to connect multiple sets of casing bodies, the docking ring on the adjacent casing body on the left side is connected with the connecting mechanism, thereby facilitating the connection of multiple sets of casing bodies. By adopting the splicing method, it is not only possible to adapt to cable segments of different lengths but also to adapt to cables of different diameters, which can facilitate the limitation and protection of the cables.

[0020] 2. By setting the movable groove, movable plate and tension spring, the movable plate installed on the surface of the movable block can slide with the movable groove after the movable groove is opened, so that the movable groove can pull the tension spring to pull the movable plate after the tension spring is installed, thereby facilitating the movable block to move downward through the movable plate to fit the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is an overall stereogram provided by the embodiment of the utility model;

[0023] Figure 2 A schematic diagram of a three-dimensional cross-sectional structure of a connecting ring provided in an embodiment of the utility model;

[0024] Figure 3 The utility model embodiment provides Figure 2 The enlarged structural diagram at A in the middle;

[0025] Figure 4 The utility model embodiment provides Figure 2 The enlarged structural diagram at B in the middle;

[0026] In the figure: 1. sleeve body; 2. connecting ring; 3. docking ring; 4. connecting mechanism; 41. docking groove; 42. fitting ring; 43. moving block; 5. threaded cylinder; 6. first fitting pad; 7. second fitting pad; 8. movable groove; 9. moving plate; 10. tension spring; 11. through hole; 12. fitting sleeve; 13. plug-in rod. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example

[0029] Reference Figure 1-Figure 4 The utility model provides a technical solution: an insulated flame-retardant cable sleeve, comprising a sleeve body 1 and a connecting mechanism 4, a connecting ring 2 is fixedly installed on the left side of the sleeve body 1, and a docking ring 3 is fixedly installed on the right side of the sleeve body 1, so that the sleeve body 1 can be installed on the connecting ring 2 and the docking ring 3, and the connecting ring 2 is convenient for installing the connecting mechanism 4, so that it is convenient for users to connect multiple groups of sleeve bodies 1 through the connecting mechanism 4, so as to facilitate the protection of the cable, and the sleeve body 1 is made of insulating material, which can prevent the cable in the sleeve body 1 from being damaged and leaking.

[0030] Reference Figure 1-Figure 4In a preferred embodiment, a connecting mechanism 4 is provided, the connecting mechanism 4 includes a docking groove 41, a fitting ring 42 and a moving block 43. The docking groove 41 is opened on the left side of the connecting ring 2, the fitting ring 42 is fixedly installed on the inner wall of the connecting ring 2, and the moving block 43 is installed on the inner wall of the connecting ring 2. Four groups of moving blocks 43 are provided, so that the docking groove 41 can be opened after the connecting ring 2 is installed, and the fitting ring 42 can be installed, so that the user can connect multiple groups of sleeve bodies 1 through the docking ring 3 and the docking groove 41. At the same time, a threaded barrel 5 is fixedly installed on the right side of the docking ring 3, and the threaded barrel 5 and the docking groove 41 are at the same height. After the user aligns the threaded barrel 5 with the docking groove 41, the threaded barrel 5 can be threadedly connected to the docking groove 41, thereby facilitating the assembly of the sleeve body 1.

[0031] At the same time, the moving block 43 is arranged in an arc shape, and a first bonding pad 6 is fixedly installed on the inner side of the moving block 43, and a second bonding pad 7 is fixedly installed on the inner side of the moving block 43, and the second bonding pad 7 is located on the right side of the first bonding pad 6, so that the moving block 43 can install the first bonding pad 6 and the second bonding pad 7 after installation, and can make the first bonding pad 6 and the second bonding pad 7 fit with the surface of the cable after the moving block 43 moves downward, so as to facilitate the connection between the sleeve body 1 and the cable, and play a role of auxiliary connection limit, wherein the first bonding pad 6 and the second bonding pad 7 are both made of rubber material, and the first bonding pad 6 and the second bonding pad 7 are fluororubber, because fluororubber has excellent high temperature resistance, oil resistance and oxidation resistance, and can make the first bonding pad 6 and the second bonding pad 7 supported by fluororubber play a flame retardant role.

[0032] Reference Figure 1-Figure 4 In a preferred embodiment, a movable groove 8 is opened on the right side of the fitting ring 42, and four groups of movable grooves 8 are opened. A movable plate 9 is fixedly installed on the front of the movable block 43, and the movable plate 9 slides with the movable groove 8. A tension spring 10 is fixedly installed on the inner wall of the movable groove 8. The top of the tension spring 10 is fixedly connected to the bottom of the movable plate 9, so that the movable groove 8 can slide with the movable plate 9 after opening, thereby facilitating the limiting of the movable block 43. After the tension spring 10 is installed, the movable plate 9 can be pulled, and the movable block 43 can be moved downward to make the first fitting pad 6 and the second fitting pad 7 cable surface fit.

[0033] At the same time, a through hole 11 is opened on the surface of the connecting ring 2, and four groups of through holes 11 are opened. A fitting sleeve 12 is fixedly installed on the inner wall of the through hole 11, so that the fitting sleeve 12 can be installed after the through hole 11 is opened. Before the user uses the sleeve body 1, a traction belt is installed on the surface of the moving block 43. The traction belt passes through a section of the fitting sleeve 12 and fits with the surface of the fitting sleeve 12 and is stuck outside the fitting sleeve 12, so as to limit the moving block 43. A plug-in rod 13 is inserted into the inner wall of the fitting sleeve 12, and the inner side of the plug-in rod 13 contacts with the surface of the moving block 43. After the user pulls the traction belt outward to break the traction belt, the tension spring 10 can move the moving plate 9, so that the moving plate 9 drives the moving block 43 to move downward, thereby facilitating the moving block 43 to drive the first fitting pad 6 and the second fitting pad 7 to fit with the surface of the cable.

[0034] Specifically, the insulating flame-retardant cable sleeve is a protective sleeve for protecting the cable. After the user sets the first set of sleeve bodies 1 on the surface of the cable, the left side of the second set of sleeve bodies 1 with the same structure is fitted with the back side of the first set of sleeve bodies 1. Then the user rotates the second set of sleeve bodies 1 to make the threaded barrel 5 on the right side of the first set of sleeve bodies 1 threadedly connected with the docking groove 41 on the left side of the second set of sleeve bodies 1, and the two sets of sleeve bodies 1 are connected. Then the user pulls the pulling belt passing through the fitting sleeve 12 to break the pulling belt. After pulling, the tension spring 10 can drive the movable plate 9 to move downward, so that the movable plate 9 drives the movable block 43 downward, so that the movable block 43 drives the first fitting pad 6 and the second fitting pad 7. It fits with the surface of the cable, and then the user inserts the connecting rod 13 into the inside of the chain from the gap in the middle of the fitting sleeve 12, and makes the connecting rod 13 fit with the surface of the moving block 43. Since the fitting sleeve 12 is made of elastic material, after the user passes the thicker connecting rod 13 through the fitting sleeve 12 and fits with the surface of the moving block 43, the connecting rod 13 can limit the moving block 43, which is convenient for the first fitting pad 6 to fit with the surface of the cable and can limit the moving block 43, which is convenient for the installation of the sleeve body 1. The first fitting pad 6 and the second fitting pad 7 made of fluororubber cooperate with the sleeve body 1 made of insulating material to play the role of insulation and combustion, so that the sleeve body 1 protects the cable.

Claims

1. An insulated flame-retardant cable bushing, comprising a bushing body (1), characterized in that: A connecting ring (2) is fixedly installed on the left side of the sleeve body (1), and a docking ring (3) is fixedly installed on the right side of the sleeve body (1); A connecting mechanism (4), wherein the connecting mechanism (4) comprises: A docking groove (41), wherein the docking groove (41) is provided on the left side of the connecting ring (2); A fitting ring (42), wherein the fitting ring (42) is fixedly mounted on the inner wall of the connecting ring (2); A moving block (43) is installed on the inner wall of the connecting ring (2), and four groups of the moving blocks (43) are provided.

2. The insulated flame-retardant cable sleeve according to claim 1, characterized in that: A threaded barrel (5) is fixedly mounted on the right side of the docking ring (3), and the threaded barrel (5) and the docking groove (41) are at the same height.

3. The insulated flame-retardant cable sleeve according to claim 1, characterized in that: The moving block (43) is arranged in an arc shape, a first bonding pad (6) is fixedly installed on the inner side of the moving block (43), a second bonding pad (7) is fixedly installed on the inner side of the moving block (43), and the second bonding pad (7) is located on the right side of the first bonding pad (6).

4. The insulated flame-retardant cable sleeve according to claim 1, characterized in that: A movable groove (8) is provided on the right side of the fitting ring (42), and the movable groove (8) is provided in four groups. A movable plate (9) is fixedly mounted on the front side of the movable block (43), and the movable plate (9) is slidably matched with the movable groove (8).

5. The insulated flame-retardant cable sleeve according to claim 4, characterized in that: A tension spring (10) is fixedly mounted on the inner wall of the movable groove (8), and the top end of the tension spring (10) is fixedly connected to the bottom end of the movable plate (9).

6. The insulated flame-retardant cable sleeve according to claim 1, characterized in that: The surface of the connecting ring (2) is provided with through holes (11), and the through holes (11) are provided with four groups. A fitting sleeve (12) is fixedly mounted on the inner wall of the through hole (11).

7. The insulated flame-retardant cable sleeve according to claim 6, characterized in that: An inserting rod (13) is inserted into the inner wall of the fitting sleeve (12), and the inner side of the inserting rod (13) is in contact with the surface of the moving block (43).

8. The insulated flame-retardant cable sleeve according to claim 3, characterized in that: The first fitting pad (6) and the second fitting pad (7) are both made of rubber material, and the first fitting pad (6) and the second fitting pad (7) are fluororubber.

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