A tapable outdoor high voltage 35kV cable

Abstract

The utility model discloses a kind of outdoor high-voltage 35kV cable of tapping, fixed wire core side end is equipped with inner insulation sleeve, inner insulation sleeve outside end is bonded with inner shielding strip, inner shielding strip side end equidistantly sleeve is connected with limiting elastic sleeve, multiple limiting elastic sleeve side end is bonded with inner pressure filling block, multiple inner pressure filling block side end equidistantly bonded with several outer shielding strips, outer shielding strip side end is equipped with outer insulation sleeve, outer insulation sleeve side end is embedded with bonded combination ring, bonded combination ring side end is bonded with outer thread limiting frame, the utility model cooperates with the insulation treatment of outer limiting insulation pad to inner thread positioning pipe, so that when tapping electricity processing, interface can be connected sealing quickly, and directly press sealing and threaded insertion combination, reduce the emergence of the situation that interface is too thick to affect heat dissipation, simultaneously using direct insertion combination, reduce the steps required for operation, reduce the operation difficulty and tediousness of staff.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a tappable outdoor high-voltage 35kV cable. Background Technology

[0002] Taptable high-voltage cables refer to cables in high-voltage power systems that can be safely branched out without cutting the main cable using specific technical means. This operation is usually used in power distribution networks to meet the power needs of different nodes. The conductor material of 35kV high-voltage cables is copper or aluminum, the insulation material is cross-linked polyethylene, ethylene propylene rubber, etc., the shielding layer is conductor shielding, insulation shielding, etc., and the sheath is polyvinyl chloride, polyethylene, flame retardant, halogen-free low smoke sheath, etc. These cables are then connected to a junction box, and then the power is transmitted to the required cable through the junction box.

[0003] However, when cables are spliced, existing equipment cannot quickly and effectively block and limit the cut surface at the connection point. This requires multiple sealing steps during the combination connection, resulting in excessive thickness at the interface. In addition, multiple operation steps are required, increasing the workload, making subsequent maintenance inconvenient, and increasing the labor intensity of the staff. Utility Model Content

[0004] This utility model provides a tappable outdoor high-voltage 35kV cable, which can effectively solve the problems mentioned in the background art. When the cable is tapped, the existing equipment cannot quickly and effectively block and limit the cut surface at the connection position, so that multiple sections need to be combined and sealed during the combination connection, resulting in excessive thickness at the interface position. At the same time, multiple operation steps are required for processing, which increases the workload, makes subsequent maintenance inconvenient, and increases the labor intensity of the workers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tappable outdoor high-voltage 35kV cable, including a fixed conductor, wherein a processing component is provided on the side end of the fixed conductor;

[0006] The processing component includes an inner insulating sleeve;

[0007] An inner insulating sleeve is installed on the side end of the fixed wire core, and an inner shielding strip is glued to the outer end of the inner insulating sleeve. A limit elastic sleeve is sleeved at equal intervals on the side end of the inner shielding strip.

[0008] Multiple limiting elastic sleeves are bonded with internal pressure filling blocks on their side ends, and multiple external shielding strips are bonded to the side ends of the multiple internal pressure filling blocks at equal intervals. An external insulating sleeve is installed on the side end of the external shielding strip.

[0009] An adhesive assembly ring is embedded in the side end of the outer insulating sleeve, and an external threaded limiting bracket is bonded to the side end of the adhesive assembly ring.

[0010] The external threaded limiting bracket is fitted with a joint insulating sleeve on its side end, and a power connection fixing head is installed on one end of the joint insulating sleeve.

[0011] The side end of the joint insulating sleeve is rotatably connected to an internally threaded positioning tube, and the side end of the internally threaded positioning tube is bonded with an external limiting insulating pad.

[0012] According to the above technical solution, the side end of the external thread limiting frame is attached to the side end of the external insulating sleeve, and the longitudinal section of the external thread limiting frame is fan-shaped.

[0013] According to the above technical solution, multiple external thread limiting brackets are interlocked and connected, and the fixing wire core is sleeved inside the joint insulating sleeve and the power connection fixing head.

[0014] According to the above technical solution, the side end of the bonding insulating sleeve is attached to the side end of the inner insulating sleeve, and the longitudinal section of the outer limiting insulating pad is arc-shaped.

[0015] According to the above technical solution, an isolation component is provided on the side end of the external thread limiting bracket;

[0016] The isolation assembly includes an externally threaded plate;

[0017] The external threaded limiting bracket has an external threaded plate welded to one end, and an internal threaded isolation sleeve is connected to the side end of the external threaded plate by a thread;

[0018] One end of the internal threaded isolation sleeve is rotatably connected to a multi-hole limiting plate, and a press-fit insulating block is bonded to one end of the inner side of the multi-hole limiting plate;

[0019] Several anti-puncture limiting plates are equidistantly bonded to the side end of the outer insulating sleeve, and heat insulation limiting plates are bonded to the side end of the anti-puncture limiting plates.

[0020] According to the above technical solution, the longitudinal section of the external thread plate is arc-shaped, and the side ends of the anti-puncture limiting plate and the heat insulation limiting plate are attached to the side ends of the internal thread isolation sleeve and the external thread limiting frame.

[0021] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0022] 1. Equipped with a processing component, the external thread limit frame is bonded together with an adhesive combination ring. The side end of the external thread limit frame is fixed to the side end of the external insulating sleeve. The connecting insulating sleeve is inserted into the side end of the external thread limit frame. The internal thread positioning tube rotates and pushes the connecting insulating sleeve and the electrical fixing head inward, fully wrapping the fixing wire core at the interface position to achieve electrical sealing. In conjunction with the external limiting insulating pad, the internal thread positioning tube is insulated, allowing for quick connection and sealing of the interface during tap-connection. The direct compression sealing and threaded embedding combination reduces the possibility of excessive interface thickness affecting heat dissipation. At the same time, the direct insertion combination reduces the number of steps required for operation, easing the difficulty and tediousness of operation for workers. Furthermore, the threaded combination disassembly simplifies the operation method, facilitates subsequent maintenance, and improves the ease of use of the equipment.

[0023] 2. An isolation assembly is provided, in which a multi-hole limiting plate, a pressed insulating block, and an internally threaded isolation sleeve are fitted onto the side end of the power connection fixing head. The internally threaded isolation sleeve is combined with the externally threaded plate to fit the side end of the pressed insulating block against the side end of the externally threaded limit frame. The multi-hole limiting plate, the pressed insulating block, and the internally threaded isolation sleeve provide insulation and isolation for the edges of the connected components, reducing contact between the interface and the outside, and improving the overall isolation, insulation, and protection effect. Combined with anti-puncture limiting plates and heat insulation limiting, the external insulation sleeve is reinforced with anti-puncture treatment and mixed heat insulation, which improves the stability of outdoor cable laying and extends its service life. Attached Figure Description

[0024] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0025] In the attached diagram:

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the processing component of this utility model;

[0028] Figure 3 This is a schematic diagram of the installation structure of the inner insulating sleeve of this utility model;

[0029] Figure 4 This is a schematic diagram of the installation structure of the electrical connection fixing head of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the isolation component of this utility model;

[0031] Numbered in the diagram: 1. Fixed wire core;

[0032] 2. Processing components; 201. Inner insulating sleeve; 202. Inner shielding strip; 203. Limiting elastic sleeve; 204. Inner pressure filling block; 205. Outer shielding strip; 206. Outer insulating sleeve; 207. Adhesive combination ring; 208. External threaded limit bracket; 209. Joining insulating sleeve; 210. Electrical connection fixing head; 211. Internal threaded positioning tube; 212. Outer limiting insulating pad;

[0033] 3. Isolation components; 301. External threaded plate; 302. Internal threaded isolation sleeve; 303. Multi-hole limiting plate; 304. Press-fit insulating block; 305. Puncture-resistant limiting plate; 306. Heat-insulating limiting plate. Detailed Implementation

[0034] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0035] Example: Figure 1-5 As shown, this utility model provides a technical solution: a tappable outdoor high-voltage 35kV cable, including a fixed core 1, and a processing component 2 is provided on the side end of the fixed core 1.

[0036] The processing component 2 includes an inner insulating sleeve 201, an inner shielding strip 202, a limiting elastic sleeve 203, an inner pressure filling block 204, an outer shielding strip 205, an outer insulating sleeve 206, an adhesive combination ring 207, an outer thread limiting bracket 208, a joint insulating sleeve 209, a power connection fixing head 210, an inner thread positioning tube 211, and an outer limiting insulating pad 212;

[0037] An inner insulating sleeve 201 is installed on the side end of the fixed core 1. An inner shielding strip 202 is glued to the outer end of the inner insulating sleeve 201. A limit elastic sleeve 203 is equidistantly sleeved on the side end of the inner shielding strip 202.

[0038] Multiple limiting elastic sleeves 203 have internal pressure filling blocks 204 bonded to their sides, and multiple internal pressure filling blocks 204 have several outer shielding strips 205 bonded to their sides at equal intervals, and outer insulating sleeves 206 are installed on the sides of the outer shielding strips 205.

[0039] An adhesive combination ring 207 is embedded in the side end of the outer insulating sleeve 206. An external thread limit bracket 208 is bonded to the side end of the adhesive combination ring 207. The side end of the external thread limit bracket 208 is in contact with the side end of the outer insulating sleeve 206. The longitudinal section of the external thread limit bracket 208 is fan-shaped to achieve edge sealing and isolation, and to prevent separation and leakage at the joint.

[0040] An external threaded limit bracket 208 is fitted with a connecting insulating sleeve 209 on its side end. Multiple external threaded limit brackets 208 are interlocked with each other. The fixing core 1 is fitted inside the connecting insulating sleeve 209 and the power connection fixing head 210. The side end of the connecting insulating sleeve 209 is in contact with the side end of the inner insulating sleeve 201 to achieve sealing, locking and connection fixing. A power connection fixing head 210 is installed on one end of the connecting insulating sleeve 209.

[0041] The side end of the insulating sleeve 209 is rotatably connected to an internally threaded positioning tube 211, and the side end of the internally threaded positioning tube 211 is bonded with an external limiting insulating pad 212. The longitudinal section of the external limiting insulating pad 212 is arc-shaped, realizing external isolation protection and locking combination.

[0042] An isolation component 3 is provided on the side end of the external thread limit bracket 208;

[0043] The isolation assembly 3 includes an external threaded plate 301, an internal threaded isolation sleeve 302, a multi-hole limiting plate 303, a press-fit insulating block 304, an anti-puncture limiting plate 305, and a heat-insulating limiting plate 306;

[0044] An external threaded limit bracket 208 has an external threaded plate 301 welded to one end, and an internal threaded isolation sleeve 302 is threadedly connected to the side end of the external threaded plate 301.

[0045] One end of the internal threaded isolation sleeve 302 is rotatably connected to a perforated limiting plate 303, and a press-fitted insulating block 304 is bonded to one end of the inner side of the perforated limiting plate 303.

[0046] Several anti-puncture limiting pieces 305 are equidistantly bonded to the side end of the outer insulating sleeve 206. A heat insulation limiting piece 306 is bonded to the side end of the anti-puncture limiting piece 305. The longitudinal section of the external thread plate 301 is arc-shaped. The side ends of the anti-puncture limiting piece 305 and the heat insulation limiting piece 306 are fitted with the side ends of the internal thread isolation sleeve 302 and the external thread limit bracket 208 to achieve easy locking and sealing and locking restriction, ensuring the stability of the connection and the sealing effect.

[0047] The working principle and usage process of this utility model are as follows: During cable splicing, the adhesive combination ring 207 is inserted into the side end of the outer insulating sleeve 206 and fixed with adhesive. The adhesive combination ring 207 is then used to bond the external thread limiting frame 208, thereby fixing the side end of the external thread limiting frame 208 to the side end of the outer insulating sleeve 206. The fixing core 1 is then fitted onto the side end of the external thread limiting frame 208. The connecting insulating sleeve 209 is then inserted into the side end of the external thread limiting frame 208. At this time, the side end of the internal thread positioning tube 211 is connected to the side end of the external thread limiting frame 208. With the ends in place, the operator rotates the internal thread positioning tube 211, causing the connecting insulating sleeve 209 to be inserted inward, fully wrapping the fixed core 1 at the interface position, and pressing it onto the side end of the internal insulating sleeve 201, so that the power connection fixing head 210 and the fixed core 1 are fully fitted and connected, realizing the branching treatment of the fixed core 1 of the cable. The outer limiting insulating pad 212 is attached to the side end of the internal thread positioning tube 211 to insulate the internal thread positioning tube 211. The connection is made through the connection of the power connection fixing head 210 to the connection of the external junction box, realizing the branching power connection treatment.

[0048] After the power connection fixing head 210 is fixed, the multi-hole limiting plate 303, the pressed insulating block 304 and the internal thread isolation sleeve 302 are fitted onto the side end of the power connection fixing head 210. The internal thread isolation sleeve 302 and the external thread plate 301 are combined by rotating the threads, and the side end of the pressed insulating block 304 is attached to the side end of the external thread limit frame 208 to achieve internal insulation isolation and limitation. Multiple external thread limit frames 208 are locked and limited to achieve sealing and locking treatment, ensuring the insulation effect at the tap position. When laying the cable, the anti-stab limiting plate 305 is attached to the side end of the outer insulating sleeve 206, and the heat insulation limiting plate 306 is attached to the side end of the anti-stab limiting plate 305. The anti-stab limiting plate 305 is used to strengthen the anti-stab treatment of the outer insulating sleeve 206, and the heat insulation limiting plate 306 is used to insulate the cable, achieving stable protection treatment for outdoor laying.

[0049] After the cable is laid, it conducts electricity through the fixed core 1. The inner insulating sleeve 201 and the outer insulating sleeve 206 are used for insulation and isolation. The inner shielding strip 202 and the outer shielding strip 205 are used for electrical signal and magnetic field isolation and shielding. The multiple sets of cores are also isolated and shielded to ensure the steady operation of the fixed core 1. The limiting elastic sleeve 203 provides elastic buffering inside to ensure that the cable is squeezed. The inner pressure filling block 204 is used for positioning support to achieve elastic turning and load-bearing support.

[0050] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tappable outdoor high-voltage 35kV cable, comprising a fixed conductor (1), characterized in that: The fixed core (1) is provided with a processing component (2) on its side end; The processing component (2) includes an inner insulating sleeve (201); An inner insulating sleeve (201) is installed on the side end of the fixed core (1), and an inner shielding strip (202) is glued to the outer end of the inner insulating sleeve (201). A limiting elastic sleeve (203) is sleeved at equal intervals on the side end of the inner shielding strip (202). Multiple limiting elastic sleeves (203) have internal pressure filling blocks (204) bonded to their side ends, and multiple external shielding strips (205) are bonded to their side ends at equal intervals. External insulating sleeves (206) are installed on the side ends of the external shielding strips (205). An adhesive combination ring (207) is embedded in the side end of the outer insulating sleeve (206), and an external threaded limiting bracket (208) is bonded to the side end of the adhesive combination ring (207). The external thread limiting bracket (208) is sleeved with a connecting insulating sleeve (209) on its side end, and a power connection fixing head (210) is installed on one end of the connecting insulating sleeve (209). The side end of the bonding insulating sleeve (209) is rotatably connected to an internal threaded positioning tube (211), and the side end of the internal threaded positioning tube (211) is bonded with an external limiting insulating pad (212).

2. The tappable outdoor 35kV high-voltage cable according to claim 1, characterized in that, The side end of the external threaded limiting bracket (208) is attached to the side end of the external insulating sleeve (206), and the longitudinal section of the external threaded limiting bracket (208) is fan-shaped.

3. The tappable outdoor 35kV high-voltage cable according to claim 1, characterized in that, Multiple external threaded limit brackets (208) are interlocked and connected to each other, and the fixed wire core (1) is sleeved inside the connecting insulating sleeve (209) and the power connection fixing head (210).

4. The tappable outdoor high-voltage 35kV cable according to claim 1, characterized in that, The side end of the joint insulating sleeve (209) is attached to the side end of the inner insulating sleeve (201), and the longitudinal section of the outer limiting insulating pad (212) is arc-shaped.

5. A tappable outdoor 35kV high-voltage cable according to claim 1, characterized in that, An isolation component (3) is provided on the side end of the external thread limit bracket (208); The isolation assembly (3) includes an externally threaded plate (301); The external threaded limiting bracket (208) has an external threaded plate (301) welded to one end, and an internal threaded isolation sleeve (302) is connected to the side end of the external threaded plate (301) by a thread. One end of the internal threaded isolation sleeve (302) is rotatably connected to a perforated limiting plate (303), and a press-fit insulating block (304) is bonded to one end of the inner side of the perforated limiting plate (303). The outer insulating sleeve (206) has several anti-puncture limiting pieces (305) bonded at equal intervals on its side ends, and the anti-puncture limiting pieces (305) have heat insulation limiting pieces (306) bonded to their side ends.

6. A tappable outdoor 35kV high-voltage cable according to claim 5, characterized in that, The longitudinal section of the external thread plate (301) is arc-shaped, and the side ends of the anti-stab limiting plate (305) and the heat insulation limiting plate (306) are in contact with the side ends of the internal thread isolation sleeve (302) and the external thread limiting bracket (208).

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