Thermal shrinkage cable intermediate joint

Abstract

The utility model relates to the technical field of heat-shrinkable cable intermediate joints, in particular to a heat-shrinkable cable intermediate joint, which comprises a main cable, an auxiliary cable and a fixing disc, a three-finger sleeve is sleeved outside the main cable, a sealing ring is fixedly connected inside the three-finger sleeve, a rubber ring is arranged outside the three-finger sleeve, a fixing ring is arranged outside the rubber ring, and the sealing ring is fixedly connected with the fixing disc. According to the utility model, through the arrangement of the three-finger sleeve, the sealing ring, the rubber ring, the fixing ring, the hoop and the rubber block, the contact part of the joint and the cable can be sealed, and after the sealing ring arranged in the three-finger sleeve is thermally shrunk, the sealing ring can be sealed, so that the sealing ring can be prevented from being damaged. The rubber block sleeves the outer side of the three-finger sleeve and is located between the three-finger sleeve and the heat shrink tube, and the joint of the three-finger sleeve and the heat shrink tube is sealed, so that rainwater and the like are prevented from entering the cable from the joint to damage the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrinkable cable intermediate joints, in particular to a heat shrinkable cable intermediate joint. Background Art

[0002] Cable is an electric energy or signal transmission device. It is usually a rope-like cable formed by twisting several or several groups of wires. Each group of wires is insulated from each other and often twisted around a center. The entire outside is covered with a highly insulating covering. The cable has the characteristics of internal power supply and external insulation. Cables are divided into power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables and signal cables. The manufacture of cables is completely different from the production method of most electromechanical products. In the use of cables, joints are often used in the middle part of the cable due to various problems. Heat shrinkable cable intermediate joints came into being, making important contributions to the connection and branching of Russian and Japanese cables.

[0003] During the use of heat shrink cable intermediate joints, water often enters the cable due to the use of more heat shrink tubes and other components in the joints. Water enters the cable through the narrow gap from the contact point between the heat shrink tube and the cable, affecting the life of the cable and the normal operation of the cable. When the cable is divided into multiple small sub-cables due to various reasons, there is a lack of water fixing and spacing devices between the sub-cables. When the cable is used outdoors, it is affected by wind and other reasons, and collisions may occur between the sub-cables, affecting the safety and use of the cable. Therefore, a heat shrink cable intermediate joint is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a heat shrinkable cable intermediate joint to solve the problems raised in the above background technology.

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

[0006] A heat shrink cable intermediate joint comprises a main cable, a secondary cable and a fixing plate, wherein a three-finger sleeve is sleeved on the outside of the main cable, a sealing ring is fixedly connected inside the three-finger sleeve, a rubber ring is arranged on the outside of the three-finger sleeve, a fixing ring is arranged on the outside of the rubber ring, a clamp is arranged on the outside of the fixing ring, a heat shrink tube is sleeved on the outside of the secondary cable, annular rubber blocks are fixedly connected at both ends of the heat shrink tube, three fixing grooves with equal spacing are arranged on the outside of the fixing plate, threaded holes are arranged on both sides of the fixing groove, a protective ring is arranged inside the fixing groove, a fixing plate is arranged on the outside of the fixing groove, bolts threadedly connected to the threaded holes are passed through both sides of the fixing plate.

[0007] Preferably, the main cable and the auxiliary cable are fixedly connected.

[0008] Preferably, the diameter of the fixing ring is larger than the diameter of the rubber ring, and the diameter of the rubber ring is larger than the diameter of the three-finger sleeve.

[0009] Preferably, one end of the heat shrink tube is sleeved on one end of the three-finger sleeve, and the rubber block is located between the heat shrink tube and the three-finger sleeve.

[0010] Preferably, a secondary cable passes through the interior of the protective ring.

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

[0012] 1. In the utility model, the contact part between the joint and the cable can be sealed by the three-finger sleeve, sealing ring, rubber ring, fixing ring, hoop and rubber block. The sealing ring arranged inside the three-finger sleeve will fill the gap between the three-finger sleeve and the main cable after heat shrinkage. The rubber block is sleeved on the outside of the three-finger sleeve and is between the three-finger sleeve and the heat shrink tube. The connection between the two is sealed to prevent rainwater from entering the inside of the cable from the connection. A rubber ring, a fixing ring and a hoop are also arranged on the outside of the three-finger sleeve to tighten the contact position between the three-finger sleeve and the cable from the outside. The hoop can make the rubber ring close to one end of the three-finger sleeve, which can prevent rainwater from entering the inside of the three-finger sleeve and damaging the cable.

[0013] 2. In the utility model, the auxiliary cable can be fixed by means of the fixed plate, fixed groove, protective ring, threaded hole, fixed plate and bolts. The fixed plate and bolts can fix the auxiliary cable inside the fixed groove. The fixed plate can also keep the auxiliary cables at a distance to avoid mutual interference. In windy weather, the auxiliary cables will not collide with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0016] Figure 3 This is a schematic diagram of the installation of the hoop structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the installation of the heat shrink tube structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the fixed disk structure of the utility model.

[0019] In the figure: 1. main cable; 2. three-finger sleeve; 3. sealing ring; 4. rubber ring; 5. fixing ring; 6. clamp; 7. auxiliary cable; 8. heat shrink tube; 9. rubber block; 10. fixing plate; 11. fixing groove; 12. threaded hole; 13. protective ring; 14. fixing plate; 15. bolt. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] 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.

[0023] See also Figure 1-5 , the utility model provides a technical solution:

[0024] A heat shrink cable intermediate joint comprises a main cable 1, a secondary cable 7 and a fixing plate 10, wherein a three-finger sleeve 2 is sleeved on the outside of the main cable 1, a sealing ring 3 is fixedly connected inside the three-finger sleeve 2, a rubber ring 4 is arranged on the outside of the three-finger sleeve 2, a fixing ring 5 is arranged on the outside of the rubber ring 4, a clamp 6 is arranged on the outside of the fixing ring 5, a heat shrink tube 8 is sleeved on the outside of the secondary cable 7, annular rubber blocks 9 are fixedly connected at both ends of the heat shrink tube 8, three fixing grooves 11 with equal spacing are arranged on the outside of the fixing plate 10, threaded holes 12 are arranged on both sides of the fixing groove 11, a protective ring 13 is arranged inside the fixing groove 11, a fixing plate 14 is arranged on the outside of the fixing groove 11, bolts 15 threadedly connected to the threaded holes 12 are passed through both sides of the fixing plate 14.

[0025] The main cable 1 and the auxiliary cable 7 are fixedly connected; the diameter of the fixing ring 5 is larger than the diameter of the rubber ring 4, and the diameter of the rubber ring 4 is larger than the diameter of the three-finger sleeve 2; one end of the heat shrink tube 8 is sleeved on one end of the three-finger sleeve 2, and the rubber block 9 is between the heat shrink tube 8 and the three-finger sleeve 2; the auxiliary cable 7 passes through the inside of the protective ring 13.

[0026] Working process: When the device needs to be used, first clean the outer surfaces of the main cable 1 and the auxiliary cable 7 to remove adsorbed dust and other impurities. After cleaning, put the three-finger sleeve 2 on the outside of the main cable 1, and the auxiliary cable 7 passes through the outlet at one end of the three-finger sleeve 2. After the three-finger sleeve 2 is installed in a suitable position, a heating tool is used to heat the outside of the three-finger sleeve 2. Under the action of heating, the three-finger sleeve 2 will shrink in diameter, and the sealing ring 3 inside the three-finger sleeve 2 will also shrink. After heating for a certain period of time, the sealing ring 3 will be tightly filled between the three-finger sleeve 2 and the main cable 1. The connection part between the two is sealed, and then the rubber ring 4 is wrapped around the outside of the three-finger sleeve 2, the fixing ring 5 is wrapped around the outside of the rubber ring 4, and the clamp 6 is wrapped around the outside of the fixing ring 5. Tightening the clamp 6 can make the fixing ring 5 and the rubber ring 4 tightly wrapped around the outside of the three-finger sleeve 2, and the connection place between the three-finger sleeve 2 and the main cable 1 can be sealed to ensure that no rainwater enters the inside of the three-finger sleeve 2 and affects the main cable 1. The heat shrink tube 8 is wrapped around the outside of the auxiliary cable 7, and the end of the heat shrink tube 8 close to the three-finger sleeve 2 is wrapped around the outlet of the three-finger sleeve 2. The outer side of the tube, after being heated by the heating tool, the heat shrink tube 8 will shrink in diameter, and the rubber block 9 inside the heat shrink tube 8 will be tightly pressed by the heat shrink tube 8 to the outer side of the outlet tube of the three-finger sleeve 2, forming a seal between the three-finger sleeve 2 and the heat shrink tube 8, which can prevent rainwater from entering the inside of the heat shrink tube 8 from the connection. The fixing plate 10 can fix the auxiliary cable 7 in its fixing groove 11, and there is also a protective ring 13 in the fixing groove 11. When the auxiliary cable 7 needs to be fixed, the protective ring 13 is wrapped around the outer side of the auxiliary cable 7, and then the protective ring 13 is wrapped around the outer side of the auxiliary cable 7. The auxiliary cable 7 is put into the fixing groove 11, and the fixing plate 14 is pressed against the outside of the fixing disk 10. After the bolt 15 passes through the fixing plate 14 and is threadedly connected with the threaded hole 12, the auxiliary cable 7 will be tightly fixed in the fixing groove 11 of the fixing disk 10. When there is wind, the auxiliary cables 7 will not collide with each other due to the blowing of the wind, and the fixing disk 10 can also separate the auxiliary cables 7 to keep a certain distance between the auxiliary cables 7 to avoid mutual influence and interference. When fixing the auxiliary cables 7, multiple fixing disks 10 can be used to cooperate with each other to protect the cables.

[0027] 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.

[0028] Although the 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 intermediate joint, comprising a main cable (1), a secondary cable (7) and a fixing plate (10), characterized in that: The main cable (1) is covered with a three-finger sleeve (2) on the outside, a sealing ring (3) is fixedly connected inside the three-finger sleeve (2), a rubber ring (4) is provided on the outside of the three-finger sleeve (2), a fixing ring (5) is provided on the outside of the rubber ring (4), a clamp (6) is provided on the outside of the fixing ring (5), a heat shrink tube (8) is covered on the outside of the auxiliary cable (7), an annular rubber block (9) is fixedly connected to the two ends of the heat shrink tube (8), three equally spaced fixing grooves (11) are provided on the outside of the fixing plate (10), threaded holes (12) are provided on both sides of the fixing groove (11), a protective ring (13) is provided inside the fixing groove (11), a fixing plate (14) is provided on the outside of the fixing groove (11), and bolts (15) threadedly connected to the threaded holes (12) are passed through both sides of the fixing plate (14).

2. A heat shrinkable cable intermediate joint according to claim 1, characterized in that: The main cable (1) and the auxiliary cable (7) are fixedly connected.

3. A heat shrinkable cable intermediate joint according to claim 1, characterized in that: The diameter of the fixing ring (5) is greater than the diameter of the rubber ring (4), and the diameter of the rubber ring (4) is greater than the diameter of the three-finger sleeve (2).

4. A heat shrinkable cable intermediate joint according to claim 1, characterized in that: One end of the heat shrink tube (8) is sleeved on one end of the three-finger sleeve (2), and the rubber block (9) is located between the heat shrink tube (8) and the three-finger sleeve (2).

5. A heat shrinkable cable intermediate joint according to claim 1, characterized in that: A secondary cable (7) passes through the interior of the protection ring (13).

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