High temperature resistant polyvinyl chloride power cable

Abstract

The utility model discloses a kind of high-temperature-resistant polyvinyl chloride power cable, and the end of outer insulation layer is equipped with docking sealing assembly, the end sleeve ring one end is uniformly provided with deformation port, the end sleeve ring is equipped with flow groove near deformation port, the end sleeve ring one end is sleeved with extrusion outer ring, the end sleeve ring middle part is symmetrically provided with observation hole, sliding plate middle part is uniformly penetrated and is equipped with docking conductive cone, outer insulation layer is provided with heat-resistant support assembly, the utility model extrusion outer ring is rotated, extrusion outer ring is continuously extruded deformation port along with rotation and will glue pack extrusion rupture, bonding in cable port outside, rotate inner thread pipe, so that docking conductive cone pierces into inner conductor, the docking operation of cable is completed, the completion of conductive path, and sliding plate is insulating material, and observe in rotation process through observation hole, prevent deflection when piercing, docking operation is quick, and need not winding conductor and multilayer waterproof adhesive tape, docking is more fast and labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a high-temperature resistant polyvinyl chloride power cable. Background Technology

[0002] Cables are typically rope-like cables made of several or groups of conductors twisted together. Each group of conductors is insulated from each other and is often twisted around a central core. The entire cable is covered with a highly insulating outer layer, featuring internal conductivity and external insulation. High-temperature resistant cables are wire products specifically designed for high-temperature environments and are widely used in metallurgy, petrochemicals, power plants, and other fields.

[0003] However, the high-temperature resistant cables currently on the market are more difficult to install or maintain due to the thicker outer heat-resistant layer and insulation layer, making the wiring process more complicated and laborious, resulting in lower efficiency in cable connection operations. Utility Model Content

[0004] This utility model provides a high-temperature resistant polyvinyl chloride power cable, which can effectively solve the problem mentioned in the background art that the thick outer heat-resistant layer and insulation layer make wiring more difficult and complicated, resulting in low efficiency of cable connection operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant polyvinyl chloride power cable, comprising an outer insulation layer, wherein a butt sealing assembly is installed at the end of the outer insulation layer, and the butt sealing assembly comprises an end collar; The outer insulation layer is fitted with an end collar at one end. A deformation opening is evenly provided at one end of the end collar. An adhesive pack is bonded inside the deformation opening. A flow groove is provided near the deformation opening of the end collar. Adhesive holes are evenly provided in the flow groove. An extrusion outer ring is fitted at one end of the end collar. A sliding plate is embedded inside the end collar, and observation holes are symmetrically opened in the middle of the end collar. The two opposite end collars are respectively threaded to the two ends of the internal threaded tube. A docking conductive cone is uniformly installed through the middle of the sliding plate.

[0006] According to the above technical solution, the outer edge of the end collar is rounded, and the inner diameter of the extruded outer ring is larger at one end and smaller at the other end.

[0007] According to the above technical solution, the glue pack is filled with glue, and the outer side of the glue pack protrudes beyond the outer side of the end collar.

[0008] According to the above technical solution, the threads at both ends of the internally threaded tube have opposite directions, and the end face of the internally threaded tube is a regular hexagon with a circular hole in the middle.

[0009] According to the above technical solution, the outer side of the sliding plate is fitted with the inner side of the collar, and the outer side of the sliding plate is a smooth curved surface.

[0010] According to the above technical solution, the outer insulation layer is provided with a heat-resistant support assembly, and the heat-resistant support assembly includes a support strip; Support strips are evenly distributed on the outer side of the outer insulation layer, and a heat-insulating outer layer is wrapped around the outside of the support strips; The outer insulation layer contains inner conductors, and a heat-insulating filler layer is placed between the inner conductors and the outer insulation layer. According to the above technical solution, the gaps between the support strips are filled with nitrogen gas, and the outer side of the heat insulation outer layer is covered with a reflective film.

[0011] 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; 1. Equipped with a butt sealing assembly, the cut end is trimmed smooth. First, the extrusion outer ring is fitted onto one end of the cable, with the larger inner diameter end of the extrusion outer ring closer to the cable end. Next, the end sleeve is fitted onto the cable end. Pull the extrusion outer ring closer to the deformation port and rotate it. As the extrusion outer ring rotates, it continuously squeezes the deformation port and breaks the glue pack. The glue inside the glue pack flows out, filling the gap between the deformation port and the extrusion outer ring. At the same time, some glue will flow along the flow channel into the bonding hole and adhere to the outside of the cable end. The sliding plate is embedded into the end sleeve. The internal thread tube is rotated so that the butt conductive cone penetrates into the inner conductor, completing the cable butt connection and establishing a conductive path. The sliding plate is made of insulating material, and the observation hole is used to observe during rotation, preventing deviation during penetration. The butt connection operation is quick and does not require wrapping the wire or multiple layers of waterproof tape, making the butt connection faster and less labor-intensive.

[0012] 2. A heat-resistant support assembly is provided. The outer insulation layer of the cable and the heat-insulating outer layer are separated by support strips. The outer insulation layer of the cable is made of heat-resistant polyvinyl chloride. The gaps between the support strips are filled with nitrogen gas with good stability. While reducing the use of heat-insulating material in the gaps, the heat-insulating outer layer, heat-insulating filling layer and reflective film ensure the heat insulation effect, reduce the impact of high external temperature on the inner conductor of the cable, and make the cable safer to use. The heat-insulating outer layer is made of fluoroplastic material. Attached Figure Description

[0013] 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.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a schematic diagram of the structure of the docking sealing assembly of this utility model; Figure 3 This is a schematic diagram of the installation structure of the glue pack of this utility model; Figure 4 This is a utility model Figure 1 A schematic diagram of the structure of region A; Labels in the diagram: 1. Outer insulation layer; 2. Butt sealing assembly; 201. End collar; 202. Deformation port; 203. Adhesive pack; 204. Flow groove; 205. Bonding hole; 206. Extrusion outer ring; 207. Sliding plate; 208. Inspection hole; 209. Internally threaded tube; 210. Butt conductive cone; 3. Heat-resistant support components; 301. Support strip; 302. Heat-insulating outer layer; 303. Inner conductor; 304. Heat-insulating filling layer; 305. Reflective film. Detailed Implementation

[0015] 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.

[0016] Example: Figure 1-4 As shown, this utility model provides a technical solution for a high-temperature resistant polyvinyl chloride power cable, including an outer insulation layer 1, and a butt sealing assembly 2 installed at the end of the outer insulation layer 1. The butt sealing assembly 2 includes an end collar 201, a deformation port 202, an adhesive pack 203, a flow groove 204, an adhesive hole 205, an extrusion outer ring 206, a sliding plate 207, an observation hole 208, an internal threaded tube 209, and a butt conductive cone 210. An end collar 201 is sleeved at one end of the outer insulation layer 1. A deformation port 202 is evenly opened at one end of the end collar 201. An adhesive package 203 is bonded inside the deformation port 202. The adhesive package 203 is filled with adhesive. The outer side of the adhesive package 203 is higher than the outer side of the end collar 201. The outer edge of the end collar 201 is rounded. The inner diameter of the extrusion outer ring 206 is larger at one end and smaller at the other end, which facilitates the extrusion of the adhesive package 203 to break and bond. A flow groove 204 is opened near the deformation port 202 of the end collar 201. Bonding holes 205 are evenly opened in the flow groove 204. An extrusion outer ring 206 is sleeved at one end of the end collar 201. A sliding plate 207 is embedded inside the end collar 201. The outer side of the sliding plate 207 fits against the inner side of the end collar 201. The outer side of the sliding plate 207 is a smooth curved surface, which facilitates the sliding plate 207 to slide along the inside of the end collar 201. Observation holes 208 are symmetrically opened in the middle of the end collar 201. The two opposite end collars 201 are respectively connected to the two ends of the internal threaded tube 209 by threads. The threads at both ends of the internal threaded tube 209 have opposite directions. The end face of the internal threaded tube 209 is a regular hexagon with a round hole in the middle, which facilitates the rotation of the internal threaded tube 209 for connection. A docking conductive cone 210 is uniformly installed through the middle of the sliding plate 207.

[0017] The outer insulation layer 1 is provided with a heat-resistant support assembly 3, which includes a support strip 301, a heat-insulating outer layer 302, an inner conductor 303, a heat-insulating filling layer 304, and a reflective film 305. Support strips 301 are evenly distributed on the outer side of the outer insulation layer 1, and a heat insulation outer layer 302 is wrapped around the outer side of the support strips 301. The outer insulation layer 1 has inner conductors 303 distributed inside, and the space between the inner conductors 303 and the outer insulation layer 1 is filled with a heat insulation filling layer 304. The gaps between the support strips 301 are filled with nitrogen gas, and the outer heat insulation layer 302 is covered with a reflective film 305 to improve the heat insulation effect. The working principle and usage process of this utility model are as follows: When two cable sections need to be joined after cable repair or laying, the cut end is trimmed flat, and the outer side of the cable near the cut end is roughened by grinding. Then, the outer compression ring 206 is first fitted onto one end of the cable, with the end of the outer compression ring 206 with a larger inner diameter closer to the cable end. Next, the end collar 201 is fitted onto the cable end. To facilitate the fitting, the two sides of the deformation opening 202 can be moved to enlarge the diameter of the end collar 201, making it easier to join. Then, the outer compression ring 201 is pulled... When ring 206 approaches deformation port 202, it rotates and squeezes outer ring 206. As it rotates, outer ring 206 continuously squeezes deformation port 202 and squeezes glue pack 203 to break. Glue in glue pack 203 flows out, filling the gap between deformation port 202 and outer ring 206. At the same time, some glue flows along flow groove 204 to bonding hole 205 and is bonded to the outside of cable port, completing the fixing operation of end collar 201. Similarly, the fixing operation of end collar 201 at the other end of the cable is completed. When docking is required, the sliding plate 207 is inserted into the end collar 201, and the docking conductive cone 210 is aligned with the inner conductor 303. The internal thread tube 209 is taken out. The two ends of the internal thread tube 209 are connected to the outer threads of the end collar 201 through threads. The internal thread tube 209 is rotated so that the docking conductive cone 210 is inserted into the inner conductor 303, completing the cable docking operation and completing the conductive path. The sliding plate 207 is made of insulating material, and the observation hole 208 is used for observation during rotation to prevent deviation during insertion. The docking operation is quick and does not require the wrapping of wires and multiple layers of waterproof tape, making docking faster and less labor-intensive. The cable outer insulation layer 1 and the heat insulation outer layer 302 are separated by a support strip 301. The cable outer insulation layer 1 is made of heat-resistant polyvinyl chloride. The gaps between the support strips 301 are filled with nitrogen gas with good stability. While reducing the use of heat insulation material in the gaps, the heat insulation effect is ensured by the heat insulation outer layer 302, the heat insulation filling layer 304 and the reflective film 305. This reduces the impact of high external temperatures on the inner conductor 303 of the cable, making the cable safer to use. The heat insulation outer layer 302 is made of fluoroplastic.

[0018] 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 high-temperature resistant polyvinyl chloride power cable, comprising an outer insulation layer (1), characterized in that: The outer insulation layer (1) is equipped with a butt sealing assembly (2) at its end, the butt sealing assembly (2) including an end collar (201); The outer insulation layer (1) is fitted with an end collar (201) at one end. A deformation port (202) is evenly opened at one end of the end collar (201). An adhesive pack (203) is bonded inside the deformation port (202). A flow groove (204) is opened near the deformation port (202) of the end collar (201). An adhesive hole (205) is evenly opened in the flow groove (204). An extrusion outer ring (206) is fitted at one end of the end collar (201). A sliding plate (207) is embedded inside the end collar (201). Observation holes (208) are symmetrically opened in the middle of the end collar (201). The two opposite end collars (201) are respectively connected to the two ends of the internal threaded tube (209) by threads. A docking conductive cone (210) is uniformly installed through the middle of the sliding plate (207).

2. The high-temperature resistant polyvinyl chloride power cable according to claim 1, characterized in that, The outer edge of the end collar (201) is rounded, and the inner diameter of the extruded outer ring (206) is larger at one end and smaller at the other end.

3. The high-temperature resistant polyvinyl chloride power cable according to claim 1, characterized in that, The glue pack (203) is filled with glue, and the outer side of the glue pack (203) protrudes beyond the outer side of the end collar (201).

4. The high-temperature resistant polyvinyl chloride power cable according to claim 1, characterized in that, The internally threaded tube (209) has threads at both ends that turn in opposite directions, and the end face of the internally threaded tube (209) is a regular hexagon with a circular hole in the middle.

5. A high-temperature resistant polyvinyl chloride power cable according to claim 1, characterized in that, The outer side of the sliding plate (207) is attached to the inner side of the end collar (201), and the outer side of the sliding plate (207) is a smooth curved surface.

6. The high-temperature resistant polyvinyl chloride power cable according to claim 1, characterized in that, The outer insulation layer (1) is provided with a heat-resistant support assembly (3), which includes a support strip (301). The outer insulation layer (1) has support strips (301) evenly distributed on its outer side, and the support strips (301) are wrapped with a heat insulation outer layer (302). The outer insulation layer (1) has an inner conductor (303) distributed inside, and a heat insulation filler layer (304) is filled between the inner conductor (303) and the outer insulation layer (1).

7. A high-temperature resistant polyvinyl chloride power cable according to claim 6, characterized in that, The gaps between the support strips (301) are filled with nitrogen gas, and the outer side of the heat insulation outer layer (302) is covered with a reflective film (305).

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