Heat-shrinkable cable indoor terminal

Abstract

The utility model relates to the technical field of cable indoor terminals, in particular to a heat-shrinkable cable indoor terminal, which comprises a tubular heat-shrinkable tube made of thermoplastic materials and a heat-shrinkable adhesive tape layer, the heat-shrinkable adhesive tape layer is fixedly connected in the heat-shrinkable tube, a flame-retardant layer is fixedly connected in the heat-shrinkable adhesive tape layer, and the flame-retardant layer is fixedly connected in the heat-shrinkable adhesive tape layer. A flame-retardant layer is arranged in the heat shrink tube, a plurality of anti-slip strips with trapezoidal sections are fixedly connected in the flame-retardant layer, elastic pieces which are annularly arranged are fixedly connected to the two ends of the heat shrink tube, an elastic strip is fixedly connected to one end of each elastic piece, and a plurality of heat dissipation holes are formed in the surface of the heat shrink tube. The cable is not easy to damage when being maintained and bent, the whole heat shrink tube has a flame retardant effect through the flame retardant device arranged in the heat shrink tube, and the whole heat shrink tube is not easy to move through the anti-skid devices arranged at the two ends and the interior of the heat shrink tube.

Description

Technical Field

[0001] The utility model relates to the technical field of indoor cable terminals, in particular to an indoor heat shrinkable cable terminal. Background Art

[0002] A heat shrink cable terminal is a device used to protect cable joints. It consists of a heat shrink tube and heat shrink tape. The heat shrink tube is a tubular object made of thermoplastic material that can be heated and shrunk to tightly wrap the cable joint. The heat shrink tape is a sticky material that can be used to fix the position of the heat shrink tube. Indoor cable terminals refer to cable terminals installed indoors in residential buildings, commercial buildings, industrial plants, etc.

[0003] During the daily regular maintenance of the cable, the maintenance personnel need to bend the cable during the operation, which causes the indoor terminal to move slightly. After long-term use and frequent bending, the heat shrink tube is at risk of damage. Therefore, a heat shrink cable indoor terminal is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide an indoor terminal for a heat shrinkable cable, so as to solve the problem that after the cable is used for a long time and bent, the heat shrinkable tube will move slightly and there is a risk of damage.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heat shrink cable indoor terminal comprises a heat shrink tube and a heat shrink tape layer made of thermoplastic material and arranged in a tubular shape, wherein the heat shrink tape layer is fixedly connected inside the heat shrink tube, a flame retardant layer is fixedly connected inside the heat shrink tape layer, a plurality of anti-slip strips with a trapezoidal cross section are fixedly connected inside the flame retardant layer, elastic members arranged in a ring shape are fixedly connected at both ends of the heat shrink tube, an elastic strip is fixedly connected at one end of the elastic member, and a plurality of heat dissipation holes are opened on the surface of the heat shrink tube.

[0007] Preferably, the inner wall diameter of the elastic member is slightly smaller than the inner wall diameter of the heat shrink tube, and the total diameter of the elastic member is slightly larger than the total diameter of the heat shrink tube.

[0008] Preferably, the elastic strip is arranged between two elastic members, and a second reinforcing strip arranged in an annular shape is fixedly connected inside the elastic member.

[0009] Preferably, the elastic strips are arranged in groups of ten on the outside of the heat shrink tube, and a first reinforcing strip arranged in the form of an iron wire rod is fixedly connected inside the elastic strip.

[0010] Preferably, a plurality of anti-sliding blocks are fixedly connected to the inner wall of the elastic member, and the anti-sliding blocks are elastically arranged in the form of arc-shaped protrusions.

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

[0012] In the utility model, the heat shrink tube, heat shrink tape layer and flame retardant layer are provided, and the flame retardant layer is composed of a magnesium hydroxide layer, which can effectively retard flames and prevent the wiring harness from burning after being disconnected. The anti-skid strip provided in the flame retardant layer increases the anti-skid effect of the heat shrink tube as a whole, so that the heat shrink tube is not easy to move when the cable is bent. The elastic parts and elastic strips provided at the left and right ends of the heat shrink tube can effectively reinforce the outer side of the heat shrink tube, so that the heat shrink tube is not easy to be damaged when the maintenance personnel bend the cable. The first reinforcing strip provided in the elastic strip in the form of an iron wire rod increases the stabilizing effect of the elastic strip. Since the inner wall diameter of the elastic part is slightly smaller than the inner wall diameter of the heat shrink tube, the heat shrink tube and the elastic part are put onto the outside of the cable. At this time, a hot air blower is used to heat the heat shrink tube. The heat shrink tube shrinks in the hot air environment and fits tightly to the cable to fix it. A plurality of heat dissipation holes are opened on the surface of the heat shrink tube to achieve heat dissipation effect. A plurality of arc-shaped protrusions and elastic anti-sliding blocks are arranged on the inner wall of the elastic part to increase the friction between the cable and the elastic part, thereby making the heat shrink tube as a whole difficult to move. A second reinforcing strip is arranged in the elastic part to increase the stabilizing effect of the elastic part. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the elastic member of the utility model;

[0015] Figure 3 This is a schematic diagram of the side structure of the heat shrink tube of the utility model;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the elastic strip of the utility model.

[0017] In the figure: 1. heat shrink tube; 2. heat shrink tape layer; 3. flame retardant layer; 4. anti-slip strip; 5. elastic member; 6. elastic strip; 7. first reinforcement strip; 8. heat dissipation hole; 9. anti-sliding block; 10. second reinforcement strip. DETAILED DESCRIPTION

[0018] 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.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0021] See also Figure 1-4 , the utility model provides a technical solution:

[0022] A heat shrink cable indoor terminal comprises a heat shrink tube 1 and a heat shrink tape layer 2 made of thermoplastic material and arranged in a tubular shape, wherein the heat shrink tape layer 2 is fixedly connected inside the heat shrink tube 1, a flame retardant layer 3 is fixedly connected inside the heat shrink tape layer 2, a plurality of anti-skid strips 4 with a trapezoidal cross section are fixedly connected inside the flame retardant layer 3, elastic members 5 arranged in an annular shape are fixedly connected at both ends of the heat shrink tube 1, an elastic strip 6 is fixedly connected at one end of the elastic member 5, a plurality of heat dissipation holes 8 are opened on the surface of the heat shrink tube 1, a reinforcement device is arranged on the heat shrink tube 1, so that the cable is not easily damaged during maintenance and bending, a flame retardant device is arranged inside the heat shrink tube 1, so that the heat shrink tube 1 as a whole has a flame retardant effect, and anti-skid devices are arranged on both ends and inside the heat shrink tube 1, so that the heat shrink tube 1 as a whole is not easy to move.

[0023] The inner wall diameter of the elastic member 5 is slightly smaller than the inner wall diameter of the heat shrink tube 1, and the total diameter of the elastic member 5 is slightly larger than the total diameter of the heat shrink tube 1, so that the anti-sliding block 9 on the inner wall of the elastic member 5 and the cable fit tightly; the elastic strip 6 is arranged between the two elastic members 5, and a second reinforcing strip 10 arranged in an annular shape is fixedly connected inside the elastic member 5 to reinforce the outer side of the heat shrink tube 1 and the elastic member 5; ten elastic strips 6 are arranged on the outer side of the heat shrink tube 1 in a group, and a first reinforcing strip 7 arranged in the shape of an iron wire is fixedly connected inside the elastic strip 6 to reinforce the elastic strip 6; a plurality of anti-sliding blocks 9 are fixedly connected to the inner wall of the elastic member 5, and the anti-sliding block 9 is elastically arranged in an arc-shaped protrusion, so that the inner wall of the elastic member 5 has an anti-slip effect.

[0024] Working process: When using the heat shrink cable indoor terminal, first remove the burrs and sharp corners on the cable, clean the oil and other impurities on the connecting part, the installer calculates the length to be wrapped, and then selects a cable indoor terminal consisting of a heat shrink tube 1 and a heat shrink tape layer 2 of appropriate length, and puts it on the outside of the cable. At this time, the anti-slip strip 4 and the cable fit tightly, which increases the friction between the heat shrink tube 1 as a whole and the cable, making it difficult to move after installation and during maintenance. The anti-slip block 9 with several arc-shaped protrusions and elastic settings on the inner wall of the elastic member 5 increases the friction between the cable and the elastic member 5, further making the heat shrink tube 1 as a whole difficult to move. After moving the heat shrink tube 1 as a whole to the appropriate position, the installer holds a hot air gun to The heat shrink tube 1 is heated as a whole, and during the heating process, it can be evenly heated from the middle part of the heat shrink tube 1 to both sides. At this time, heat is dissipated through the heat dissipation holes 8 opened on the surface of the heat shrink tube 1. During the heating process, the heat shrink tube 1 shrinks in the hot air environment and fits tightly with the cable to achieve a fixing effect. After the heating is completed, the heat shrink tube 1 is fixed to the outside of the cable as a whole. The flame retardant layer 3 composed of a magnesium hydroxide layer is set, so that the wire harness is not easy to burn after the circuit is broken, and has a flame retardant effect. The reinforcement device set on the heat shrink tube 1 makes the cable not easy to be damaged during maintenance and bending. The flame retardant device set in the heat shrink tube 1 makes the heat shrink tube 1 have a flame retardant effect as a whole. The anti-slip devices set at both ends and inside of the heat shrink tube 1 make the heat shrink tube 1 not easy to move as a whole.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0026] 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 heat shrinkable cable indoor terminal, comprising a heat shrinkable tube (1) and a heat shrinkable tape layer (2) made of thermoplastic material and arranged in a tubular shape, characterized in that: A heat shrinkable tape layer (2) is fixedly connected inside the heat shrinkable tape layer (2), a flame retardant layer (3) is fixedly connected inside the heat shrinkable tape layer (2), a plurality of anti-slip strips (4) with a trapezoidal cross section are fixedly connected inside the flame retardant layer (3), elastic members (5) arranged in a ring shape are fixedly connected at both ends of the heat shrinkable tube (1), an elastic strip (6) is fixedly connected at one end of the elastic member (5), and a plurality of heat dissipation holes (8) are provided on the surface of the heat shrinkable tube (1).

2. A heat shrinkable cable indoor terminal according to claim 1, characterized in that: The inner wall diameter of the elastic member (5) is slightly smaller than the inner wall diameter of the heat shrink tube (1), and the overall diameter of the elastic member (5) is slightly larger than the overall diameter of the heat shrink tube (1).

3. A heat shrinkable cable indoor terminal according to claim 1, characterized in that: The elastic strip (6) is arranged between two elastic members (5), and a second reinforcing strip (10) arranged in an annular shape is fixedly connected inside the elastic member (5).

4. A heat shrinkable cable indoor terminal according to claim 1, characterized in that: Ten of the elastic strips (6) are arranged in a group on the outside of the heat shrink tube (1), and a first reinforcing strip (7) in the form of an iron wire rod is fixedly connected inside the elastic strip (6).

5. A heat shrinkable cable indoor terminal according to claim 1, characterized in that: A plurality of anti-sliding blocks (9) are fixedly connected to the inner wall of the elastic member (5), and the anti-sliding blocks (9) are elastically arranged in the form of arc-shaped protrusions.

Images