Cable connection joint

Abstract

The utility model discloses a cable connection joint, and relates to the technical field of cable connection. The cable comprises a first cable and a second cable, conductor wire cores at opposite ends of the first cable and the second cable are connected with each other through a connecting assembly, and a protective layer is arranged on the outer side of the connecting assembly; and the protection tube sleeves the outer side of the protection layer, and two ends of the protection tube respectively extend towards the first cable and the second cable. By adopting the design of the limiting rod, when the two ends of the limiting rod are respectively fixed on the first cable and the second cable by the annular block, the protection pipe can be protected through the limiting rod, so that the protection pipe is not easy to bend under the action of external force, and the joint of the first cable and the second cable can be protected; therefore, the cable is not easy to bend in the installation and use processes, so that the service life of the cable can be prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of cable connection, and in particular to a cable connection joint. Background Art

[0002] Cable joints are also called cable heads. After the cable is laid, in order to make it a continuous line, each section of the line must be connected as a whole. These connection points are called cable joints. The cable joint in the middle of the cable line is called an intermediate joint, and the cable joints at both ends of the line are called terminal heads.

[0003] After searching, the patent publication number CN216436779U discloses a cable connection joint, which inserts the conductor cores of the first cable and the second cable into the two ends of the connecting sleeve respectively, and then locks and fixes the conductor cores by a locking knob to prevent the cables from being easily disconnected after docking. Finally, a copper shielding tape, a water-blocking tape, and an armored braided mesh are wrapped around the cable docking point one by one, and a PVC sleeve is sleeved on the outside for protection. This makes the structure of the cable docking point not integral and has low strength, and the PVC sleeve is relatively weak compared to the protective layer of the cable itself. The prior art does not have a structure for anti-bending protection of the joint, which causes the connection end of the cable conductor core and the connecting sleeve to be easily bent multiple times during the installation process, thereby affecting the service life of the cable. In order to reasonably improve this problem, the present application proposes a cable connection joint. Utility Model Content

[0004] The purpose of the present application is to solve the technical problem that the structure of the cable joint is not integral, the strength is low, and the PVC sleeve is relatively weak compared to the protective layer of the cable itself. The prior art does not have a structure to protect the joint against bending, which causes the connecting end of the cable conductor core and the connecting sleeve to be easily bent multiple times during the installation process, thereby affecting the service life of the cable. The present application provides a cable connection joint.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] A cable connection connector, comprising:

[0007] The conductor cores of the first cable and the second cable at opposite ends are connected to each other through a connecting component, and a protective layer is provided on the outer side of the connecting component;

[0008] A protection tube is sleeved on the outside of the protective layer, and its two ends extend toward the first cable and the second cable respectively. A limit rod is installed on the outside of the protection tube, which extends along the length direction and has a plurality of limit rods in a circular array along the axis of the protection tube;

[0009] There are two annular blocks, which are respectively sleeved on the outside of the first cable and the second cable. The opposite sides of the two annular blocks are respectively connected to the back ends of the limit rods, and both annular blocks are provided with fixing mechanisms, which are used to fix the annular blocks to the first cable and the second cable respectively.

[0010] Furthermore, both ends of the protection tube are fixed to the first cable and the second cable via heat shrink tubes.

[0011] Furthermore, an annular groove is constructed on the outer side of the protection tube, an annular positioning block is installed in the annular groove, and a plurality of limiting rods are connected to the outer side of the annular positioning block.

[0012] Furthermore, the annular positioning block is fixed to the limiting rod by welding.

[0013] Furthermore, the annular grooves are symmetrically arranged on the protective tube, and are respectively close to the first cable and the second cable.

[0014] Furthermore, the limiting rod comprises a sleeve rod installed on the outside of the annular positioning block, inner rods are installed on opposite sides of the two annular blocks, and two ends of the sleeve rod are respectively slidably matched with the two inner rods.

[0015] Furthermore, the fixing mechanism includes a receiving groove symmetrically opened on the inner ring surface of the annular block, and a bolt assembly is arranged on the outer side of the annular block, the end of which is threadedly inserted into the receiving groove, and a resistance block is rotatably engaged thereon, and the resistance block and the receiving groove are slidably engaged.

[0016] Furthermore, an arc-shaped protrusion is constructed on one side of the abutment block away from the accommodating groove, and a plurality of arc-shaped protrusions are arranged in a linear array along the axis direction of the annular block.

[0017] The beneficial effects of this application are as follows:

[0018] The present application adopts the design of a limit rod. When the annular block fixes the two ends of the limit rod on the first cable and the second cable respectively, the limit rod can be used to protect the protective tube so that it is not easy to bend under the action of external force. In this way, the joint of the first cable and the second cable can be protected so that it is not easy to bend during installation and use, thereby extending the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of this application;

[0020] Figure 2 This application Figure 1 The structural split section view;

[0021] Figure 3 is a partial cross-sectional view of the annular block of the present application;

[0022] Figure 4 This application Figure 3 A magnified image of point A;

[0023] Figure numerals: 1. first cable; 2. second cable; 3. connecting assembly; 4. protective layer; 5. protective tube; 6. limiting rod; 7. annular block; 8. fixing mechanism; 9. heat shrink tube; 10. annular groove; 11. annular positioning block; 12. sleeve rod; 13. inner rod; 14. accommodating groove; 15. interference block; 16. bolt assembly; 17. arc-shaped protrusion. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0025] like Figure 1-Figure 4 As shown, a cable connection connector provided in one embodiment of the present application includes:

[0026] The conductor cores of the first cable 1 and the second cable 2 at opposite ends are connected to each other through a connecting assembly 3. The connecting assembly 3 is an existing connecting sleeve and a locking knob. After the conductor cores of the first cable 1 and the second cable 2 are respectively inserted into the two ends of the connecting sleeve, the conductor cores are locked and fixed by the locking knob, and a protective layer 4 is provided on the outside of the connecting assembly 3. The protective layer 4 is composed of a copper shielding tape, a water-blocking tape, and an armored braided mesh wound one by one. The above are all existing technologies and will not be described in detail here.

[0027] The protective tube 5 is made of PVC material and has good weather resistance and corrosion resistance. It is sleeved on the outside of the protective layer 4 to protect the protective layer 4 from being easily damaged, and its two ends extend toward the first cable 1 and the second cable 2 respectively. The opposite ends of the first cable 1 and the second cable 2 are respectively inserted into the two ends of the protective tube 5. A limiting rod 6 is installed on the outside of the protective tube 5. It extends along its length direction and has multiple ring arrays along the axis of the protective tube 5. The limiting rod 6 is made of stainless steel and is not easy to bend under the action of external force. The bending of the protective tube 5 can be limited by setting the limiting rod 6, so that the connection part of the first cable 1 and the second cable 2 inside it can be protected;

[0028] There are two annular blocks 7, which are respectively sleeved on the outer sides of the first cable 1 and the second cable 2. The opposite sides of the two annular blocks 7 are respectively connected to the back ends of the limit rod 6, and the two annular blocks 7 are provided with a fixing mechanism 8, which is used to connect the annular blocks 7 to the first cable 1 and the second cable 2 respectively. The two ends of the limit rod 6 can be fixed to the first cable 1 and the second cable 2 respectively through the annular blocks 7, so that the protective tube 5 can be protected and it is not easy to bend under the action of external force. In this way, the joint of the first cable 1 and the second cable 2 can be protected and it is not easy to bend during installation and use;

[0029] The present application adopts the design of a limit rod 6. When the annular block 7 fixes the two ends of the limit rod 6 on the first cable 1 and the second cable 2 respectively, the limit rod 6 can protect the protective tube 5 so that it is not easy to bend under the action of external force. In this way, the joint of the first cable 1 and the second cable 2 can be protected so that it is not easy to bend during installation and use, thereby extending the service life of the cable.

[0030] like Figure 1 and Figure 2 As shown, in some embodiments, both ends of the protective tube 5 are fixed to the first cable 1 and the second cable 2 by a heat shrink tube 9. The heat shrink tube 9 is an existing heat shrink tube 9 with glue. After heating, the hot melt glue inside the heat shrink tube 9 will be tightly adhered to the protective tube 5, the first cable 1 and the second cable 2. It has good waterproof performance. Such a design can not only fix the protective tube 5, but also improve the connection sealing between the protective tube 5 and the first cable 1 and the second cable 2, and reduce the penetration of moisture.

[0031] like Figure 2 As shown, in some embodiments, an annular groove 10 is constructed on the outside of the protective tube 5, and an annular positioning block 11 is installed in the annular groove 10. The annular positioning block 11 will not move on the outside of the protective tube 5 due to the resistance of the inner wall of the annular groove 10. Multiple limit rods 6 are connected to the outside of the annular positioning block 11, and the multiple limit rods 6 can be connected to each other through the annular positioning block 11.

[0032] like Figure 1 and Figure 2 As shown, in some embodiments, the annular positioning block 11 is fixed to the limiting rod 6 by welding. With such a fixing method, the connection between the annular positioning block 11 and the limiting rod 6 is relatively firm and is not easily separated from each other by external force during use.

[0033] like Figure 1 and Figure 2As shown, in some embodiments, the annular grooves 10 are symmetrically arranged on the protective tube 5, the number of the annular grooves 10 is two, the number of the annular positioning blocks 11 is consistent therewith, and they are respectively close to the first cable 1 and the second cable 2, thereby improving the fixing effect of the annular positioning blocks 11 on the limit rod 6.

[0034] like Figure 1 and Figure 2 As shown, in some embodiments, the limiting rod 6 includes a sleeve rod 12 installed on the outside of the annular positioning block 11, and inner rods 13 are installed on the opposite sides of the two annular blocks 7. The two ends of the sleeve rod 12 are respectively slidably matched with the two inner rods 13, and the two inner rods 13 are respectively slidably inserted at the two ends of the sleeve rod 12. Such a design can adjust the length of the limiting rod 6 so that it can fix protective tubes 5 of different lengths, thereby improving its applicability.

[0035] like Figure 1-Figure 4 As shown, in some embodiments, the fixing mechanism 8 includes a receiving groove 14 symmetrically opened on the inner ring surface of the annular block 7, the notch of the receiving groove 14 faces the axis of the annular block 7, and a bolt assembly 16 is arranged on the outer side of the annular block 7, the end of which is threadedly penetrates the receiving groove 14, and a resistance block 15 is rotatably engaged thereon, and the resistance block 15 is slidably engaged with the receiving groove 14. When the first cable 1 or the second cable 2 is located on the inner side of the annular block 7, the bolt assembly 16 can be tightened by a tool to push the resistance block 15 to slide toward the axial direction of the annular block 7, so that the first cable 1 or the second cable 2 can be resisted to complete the fixation of the annular block 7.

[0036] like Figure 1-Figure 4 As shown, in some embodiments, an arc-shaped protrusion 17 is constructed on one side of the resistance block 15 away from the accommodating groove 14, and there are multiple arc-shaped protrusions 17 in a linear array along the axial direction of the annular block 7. The arc-shaped protrusions 17 are designed to increase the roughness of the contact surface of the resistance block 15, so that when it resists on the first cable 1 or the second cable 2, it is not easy to slide under the action of external force, thereby improving its fixing effect on the annular block 7.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cable connection connector, characterized in that: include: The conductor cores of the first cable (1) and the second cable (2) at opposite ends are connected to each other via a connecting component (3), and a protective layer (4) is provided on the outer side of the connecting component (3); A protective tube (5) is sleeved on the outside of the protective layer (4), and its two ends extend respectively toward the first cable (1) and the second cable (2). A limiting rod (6) is installed on the outside of the protective tube (5), extending along its length direction, and a plurality of limiting rods (6) are arranged in a circular array along the axis of the protective tube (5); There are two annular blocks (7) which are respectively sleeved on the outer sides of the first cable (1) and the second cable (2). The opposite sides of the two annular blocks (7) are respectively connected to the opposite ends of the limit rods (6). Both annular blocks (7) are provided with fixing mechanisms (8) for fixing the annular blocks (7) to the first cable (1) and the second cable (2).

2. The cable connection connector according to claim 1, characterized in that: The two ends of the protection tube (5) are fixed to the first cable (1) and the second cable (2) via heat shrink tubes (9).

3. The cable connection connector according to claim 2, characterized in that: The outer side of the protection tube (5) is provided with an annular groove (10), an annular positioning block (11) is installed in the annular groove (10), and a plurality of limiting rods (6) are connected to the outer side of the annular positioning block (11).

4. The cable connection connector according to claim 3, characterized in that: The annular positioning block (11) is fixed to the limiting rod (6) by welding.

5. The cable connection connector according to claim 4, characterized in that: The annular groove (10) is symmetrically arranged on the protective tube (5), and is respectively close to the first cable (1) and the second cable (2).

6. The cable connection connector according to claim 5, characterized in that: The limiting rod (6) comprises a sleeve rod (12) installed on the outside of the annular positioning block (11), inner rods (13) are installed on opposite sides of the two annular blocks (7), and the two ends of the sleeve rod (12) are respectively slidably matched with the two inner rods (13).

7. The cable connection connector according to claim 1, characterized in that: The fixing mechanism (8) comprises a receiving groove (14) symmetrically arranged on the inner ring surface of the annular block (7); a bolt assembly (16) is arranged on the outer side of the annular block (7); the end of the bolt assembly (16) is threadedly inserted through the receiving groove (14); and a resistance block (15) is rotatably engaged thereon; the resistance block (15) and the receiving groove (14) are slidably engaged.

8. The cable connection connector according to claim 7, characterized in that: The side of the abutment block (15) away from the accommodating groove (14) is configured with an arc-shaped protrusion (17), and a plurality of arc-shaped protrusions (17) are arranged in a linear array along the axial direction of the annular block (7).

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