Cable welding head
By introducing protective components into the cable fusion joint, the coordination between the adjustment screw and the fastening screw is used to enhance the structural strength and tightness at the welding joint, solving the problems of insufficient strength and poor waterproof performance of the existing cable fusion joint, and achieving more High compression and waterproof performance.
Patent Information
- Application Number
- CN202420847632.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing cable fusion joints are weak during the connection process, resulting in loose structure and poor waterproofing performance in the later stage, which is prone to heating and loose problems.
A cable fusion joint including cable assembly and protective assembly is designed, and the adjustment screw and tightening are used to utilize the adjustment screw and tightening through a combination structure of protective shell, fastening screw, adjustment screw, ball, positioning plate, rubber layer, compaction cylinder and bump. The coordination of the screw enhances the structural strength and tightness at the welding joint and improves waterproofing performance.
It significantly improves the compression, waterproof and connection strength of the cable fusion joints, reduces the incidence of later problems, and ensures higher usage stability and safety.
Smart Images
Figure CN222320510U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable fusion joints, in particular to a cable fusion joint. Background Art
[0002] With the continuous development of social industry, the demand for electricity is increasing. In the process of power transmission, a large number of power cables will be used. Among them, power cables are cable products used to transmit and distribute high-power electric energy in the trunk lines of the power system, including various insulated power cables of various voltage levels of 3.6KV-500KV and above.
[0003] Cable fusion joint is a kind of cable intermediate joint, which mainly connects cables by melting connection. The existing cable fusion joints generally restore the original cable structure by melting the wire body and gradually adding a protective layer to the outer layer. However, the strength of the fusion joint is often weaker than that of the original cable, which leads to frequent problems in the later stage. Therefore, we proposed a cable fusion joint. Utility Model Content
[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.
[0005] To this end, the technical solution adopted in this utility model is:
[0006] A cable fusion joint, comprising: a cable assembly and a protective assembly; wherein the cable assembly comprises a cable body, a cable arranged in the cable body, an original insulating layer arranged on the outside of the cable, a welding point connected between the cables and an existing insulating layer arranged on the outside of the cable; the protective assembly is arranged on the cable body, and the protective assembly comprises a protective shell sleeved between the cable bodies, a fastening screw threadedly connected to the protective shell, an adjusting screw threadedly connected to the inner end of the fastening screw, a ball embedded in the inner end of the adjusting screw, a positioning plate sleeved on the end of the adjusting screw, a pressing cylinder sleeved on the cable and located on the outside of the welding point, a protrusion arranged on the outside of the pressing cylinder, a protective box installed on the protective shell and located on the outside of the fastening screw, and a protective cover arranged on the outside of the protective box.
[0007] In a preferred example, the present invention can be further configured as follows: a shielding layer is provided on the inner side of the protective shell.
[0008] In a preferred example, the present invention can be further configured as follows: sealing rings located at both ends of the cable are fixed to the inner side of the protective shell.
[0009] In a preferred example, the present invention can be further configured as follows: a rubber layer is provided on the inner side of the positioning plate.
[0010] In a preferred example, the present invention can be further configured as follows: the thickness of the protrusion gradually decreases from the middle to both sides.
[0011] In a preferred example, the present invention can be further configured as follows: the positioning plates are provided with at least three groups located inside the protective shell.
[0012] The above technical solution of the utility model has the following beneficial technical effects:
[0013] The utility model uses a protective component, and can use an adjusting screw to adjust the length of the fastening screw, and then rotate the fastening screw to make the positioning plate on the cable body side press on the original insulating layer, complete the support and fixation of the protective shell, and improve the structural strength of the fusion joint, and then further tighten the positioning plate on the side of the pressing tube, cooperate with the convex block to further press the connection on the inner side of the pressing tube, improve the tightness of the connection, and prevent loose heat dissipation. The fusion joint and its protective structure have the advantages of better pressure resistance, waterproofness and connection strength, and greatly reduce the problem rate at this place in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a cross-sectional view of the cable fusion joint of the utility model;
[0015] Figure 2 It is a side sectional view of the cable fusion joint of the utility model.
[0016] Reference numerals:
[0017] 100, cable assembly; 110, cable body; 120, cable; 130, original insulation layer; 140, welding point; 150, current insulation layer;
[0018] 200, protective assembly; 210, protective shell; 211, shielding layer; 212, sealing ring; 220, fastening screw; 230, adjusting screw; 240, ball bearing; 250, positioning plate; 251, rubber layer; 260, pressing cylinder; 270, bump; 280, protective box; 290, protective cover. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.
[0020] A cable fusion joint provided by some embodiments of the utility model is described below in conjunction with the accompanying drawings.
[0021] Combination Figure 1-2As shown, the utility model provides a cable fusion joint, comprising: a cable assembly 100 and a protective assembly 200; wherein the cable assembly 100 comprises a cable body 110, a cable 120 arranged in the cable body 110, an original insulating layer 130 arranged on the outside of the cable 120, a welding point 140 connected between the cables 120 and an existing insulating layer 150 arranged on the outside of the cable 120.
[0022] The protective assembly 200 is arranged on the cable body 110, and the protective assembly 200 includes a protective shell 210 sleeved between the cable body 110, a fastening screw 220 threadedly connected to the protective shell 210, an adjusting screw 230 threadedly connected to the inner end of the fastening screw 220, a ball 240 embedded in the inner end of the adjusting screw 230, a positioning plate 250 sleeved on the end of the adjusting screw 230, a pressing cylinder 260 sleeved on the cable 120 and located outside the welding point 140, a convex block 270 arranged outside the pressing cylinder 260, and a protective box 250 installed on the protective shell 210 and located outside the fastening screw 220. 80 and a protective cover 290 arranged on the outside of the protective box 280, through the protective component 200, the length of the fastening screw 220 can be adjusted by using the adjusting screw 230, and then the fastening screw 220 is rotated so that the positioning plate 250 located on the side of the cable body 110 is pressed on the original insulating layer 130, completing the support and fixation of the protective shell 210, improving the structural strength of the fusion joint, and then further tightening the positioning plate 250 on the side of the pressing tube 260, and cooperating with the protrusion 270 to further press the connection on the inner side of the pressing tube 260, thereby improving the tightness of the connection and preventing loose heat dissipation. The fusion joint and its protective structure have the advantages of better pressure resistance, waterproofness and connection strength, which greatly reduces the problem rate at this place in the later stage.
[0023] Specifically, a shielding layer 211 is provided inside the protective shell 210 to improve the shielding effect at the weld. Of course, other protective layers can be provided inside the protective shell 210 as required, and the arrangement is relatively simple.
[0024] Furthermore, sealing rings 212 located at both ends of the cable 120 are fixed to the inner side of the protective shell 210, which can improve the sealing of the connection, prevent any foreign objects from entering the welding point, and improve the protection effect.
[0025] On the other hand, a rubber layer 251 is provided on the inner side of the positioning plate 250 , which can enable the positioning plate 250 to be adaptively pressed and fixed on the outer side of the original insulating layer 130 , thereby improving the stability of the protective shell 210 and the overall structural strength.
[0026] It should be noted that the thickness of the protrusion 270 gradually decreases from the middle to both sides, so that the pressing cylinder 260 can be tightly pressed against the connection of the cable 120 after being stressed, thereby improving the tightness of the cable 120.
[0027] Furthermore, the positioning plates 250 are provided with at least three groups located inside the protective shell 210, and the three groups of positioning plates 250 are respectively distributed on the inside of the cable body 110 and the middle of the compression cylinder 260. Of course, more groups can be provided. The more groups there are, the higher the structural strength of the protective shell 210 is. It can be used as needed.
[0028] The working principle and use process of the utility model are as follows: first, the welding point 140 and the existing insulating layer 150 are arranged, the pressing tube 260 is first put on the outside of the welding point 140 and then the existing insulating layer 150 is arranged, and then the adjusting screw 230 is rotated to adjust the length of the fastening screw 220 according to the distance from the positioning plate 250 to the original insulating layer 130 and the outside of the positioning plate 250, and then the fastening screw 220 is rotated to make the positioning plate 250 on the side of the cable body 110 press on the original insulating layer 130, and the positioning plates 250 on both sides complete the support and fixation of the protective shell 210 to improve the overall structural strength, and the middle positioning plate 250 further presses the connection of the cable 120 to improve the tightness of the welding point.
[0029] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.
Claims
1. A cable fusion joint, characterized in that: include: A cable assembly (100), comprising a cable body (110), a cable (120) disposed in the cable body (110), an original insulation layer (130) disposed outside the cable (120), a welding point (140) connected between the cables (120), and an existing insulation layer (150) disposed outside the cable (120); A protection component (200) is arranged on the cable body (110), and the protection component (200) comprises a protection shell (210) sleeved between the cable body (110), a fastening screw (220) threadedly connected to the protection shell (210), an adjusting screw (230) threadedly connected to the inner end of the fastening screw (220), a ball (240) embedded in the inner end of the adjusting screw (230), a positioning plate (250) sleeved on the end of the adjusting screw (230), a pressing cylinder (260) sleeved on the cable (120) and located outside the welding point (140), a protrusion (270) arranged outside the pressing cylinder (260), a protection box (280) installed on the protection shell (210) and located outside the fastening screw (220), and a protection cover (290) arranged outside the protection box (280).
2. The cable fusion joint according to claim 1, characterized in that: A shielding layer (211) is provided on the inner side of the protective shell (210).
3. The cable fusion joint according to claim 1, characterized in that: Sealing rings (212) located at both ends of the cable (120) are fixed inside the protective shell (210).
4. The cable fusion joint according to claim 1, characterized in that: A rubber layer (251) is provided on the inner side of the positioning plate (250).
5. The cable fusion joint according to claim 1, characterized in that: The thickness of the protrusion (270) gradually decreases from the middle to both sides.
6. The cable fusion joint according to claim 1, characterized in that: The positioning plates (250) are provided with at least three groups located inside the protective shell (210).