Z-type longitudinal water-blocking medium-high voltage power cable

Abstract

The utility model discloses a kind of Z-type longitudinal water-blocking medium-high voltage power cable, it is related to medium-high voltage power cable technical field, including medium-high voltage power cable main part and fixed ring frame component, the outer surface of the medium-high voltage power cable main part is tightly sleeved, the fixed ring frame component is symmetrically installed in the outer surface both ends of the middle part of protective tube component.The Z-type longitudinal water-blocking medium-high voltage power cable, by the outer surface of the medium-high voltage power cable main part is tightly sleeved with protective tube component, the structural arrangement of protective tube component can improve the structural strength of medium-high voltage power cable main part to some extent, and also can play structural protection, cooperate with the structural arrangement of fixed ring frame structure, support screw rod and limiting nut, can realize the assisting effect of convenient fixed installation and structural support, to facilitate the laying and fixing of medium-high voltage power cable main part, in addition, link ring frame component can quickly interface combination protective tube component.

Description

Technical Field

[0001] This utility model relates to the field of medium and high voltage power cable technology, specifically a Z-shaped longitudinal water-blocking medium and high voltage power cable. Background Technology

[0002] Z-type longitudinal water-blocking medium and high voltage power cables are high voltage cables with a special structural design, primarily used to prevent longitudinal water penetration and protect the internal conductors and insulation layers. These cables are particularly suitable for humid environments, outdoor scenarios, or short-term immersion scenarios, such as underground pipelines, cable trenches, and damp factories. Z-type longitudinal water-blocking medium and high voltage power cables are widely used in the following fields: power plant external power output lines, substations, metallurgy, chemical industry, and underground high-voltage power supply systems.

[0003] During the laying process, the surface of conventional medium and high voltage power cables may experience structural wear due to operational issues, and there is also a lack of structural protection for the medium and high voltage power cables themselves when fixing them. Utility Model Content

[0004] The purpose of this invention is to provide a Z-shaped longitudinal water-blocking medium and high voltage power cable to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a Z-shaped longitudinal water-blocking medium- and high-voltage power cable, comprising a medium- and high-voltage power cable body and a fixed ring frame component. The outer surface of the medium- and high-voltage power cable body is tightly fitted with the fixed ring frame component, which is symmetrically installed on both ends of the middle outer surface of the protective pipe component. Both ends of the protective pipe component are provided with connecting ring frame components. The two ends of the fixed ring frame component are horizontally connected with support screws, and one end of the support screw is equipped with a limit nut. The fixed ring frame component includes a fastening bolt, a ring frame body, a connecting seat, an anti-slip pad, a fixed support foot, and a fixed angle plate. The middle of the fastening bolt is symmetrically connected to the ring frame body, and the surface of the ring frame body near the support screw is provided with a connecting seat. The surface of the connecting seat near the protective pipe component is covered with an anti-slip pad. The lower end of the ring frame body near the connecting seat is provided with a fixed support foot, and the lower end of the fixed support foot is connected with a fixed angle plate.

[0006] Furthermore, the protective pipe component includes a protective outer pipe, a support sleeve, a limiting annular groove, and a waterproof inner pipe. The support sleeve is fitted onto the middle and outer surfaces of both ends of the protective outer pipe, and limiting annular grooves are formed on the surfaces of both ends of the protective outer pipe near the edges. Moreover, a waterproof inner pipe is provided inside the protective outer pipe.

[0007] Furthermore, the support sleeve itself adopts a corrugated pipe structure, and the support sleeve and the protective outer tube are fixedly connected, and the waterproof inner tube is tightly attached to the inner wall surface of the protective outer tube.

[0008] Furthermore, the fastening bolts are horizontally threaded to the upper and lower ends of the ring frame body, and the ring frame body, connecting seat and fixed support are integrated into one structure, and the horizontal thread of the support screw passes through the middle of the connecting seat.

[0009] Furthermore, the anti-slip pad is tightly fitted to one side surface of the ring frame body, and the fixed support and the fixed corner plate are connected and combined by a hinge structure.

[0010] Furthermore, the connecting ring frame component includes an upper ring frame, a lower ring frame, a fastening ring, an anti-slip patch, a fixing bolt, and a fixing nut. The lower ring frame is provided at the bottom of the upper ring frame, and the inner surfaces of the upper ring frame and the lower ring frame are respectively installed and covered with a fastening ring and an anti-slip patch. Moreover, both ends of the upper ring frame and the lower ring frame are vertically installed with fixing bolts, and one end of the fixing bolt is threaded with a fixing nut.

[0011] Furthermore, the upper ring frame and the lower ring frame have the same structure, and the fixing bolts are threadedly connected to the upper ring frame and the lower ring frame.

[0012] Furthermore, the fastening rings are symmetrically fitted and installed on the inner wall surfaces of the upper and lower ring frames, and the inner surface structure of the limiting ring groove matches the outer surface structure of the fastening ring.

[0013] This utility model provides a Z-shaped longitudinal water-blocking medium and high voltage power cable, which has the following beneficial effects:

[0014] 1. This utility model features fixed ring frame components at both ends of the protective pipe member, with supporting screws and limiting nuts horizontally installed at both ends of the fixed ring frame components. Two sets of ring frame bodies are sandwiched between the two ends of the protective outer pipe and secured with fastening bolts. Simultaneously, the fixing angle plates at the bottom of the fixed support feet, in conjunction with the bolts, fix the entire assembly to the installation surface. The supporting screws are then horizontally screwed into the connecting seats on the sides of the two sets of ring frame bodies, thus achieving a combined connection between the two sets of fixed ring frame components. This structure simplifies the device's use while ensuring ease and flexibility of operation. Furthermore, it ensures good structural support and fixation for the medium- and high-voltage power cable body during installation, preventing unnecessary structural damage. It also ensures the straightness of the medium- and high-voltage power cable body in certain structural configurations, reducing structural damage caused by bending.

[0015] 2. This utility model, by tightly fitting a protective tube component onto the outer surface of the medium- and high-voltage power cable body, specifically by fitting a protective outer tube with a waterproof inner tube on its inner wall onto the outer surface of the medium- and high-voltage power cable body, completes the structural combination between the medium- and high-voltage power cable body and the protective tube component. The use of this structure ensures ease of use while effectively protecting the safety of the medium- and high-voltage power cable body, thereby ensuring its service life. Furthermore, the corrugated pipe support sleeve further strengthens the structure, ensuring sufficient structural protection. Additionally, the connecting ring frame structure allows for easy connection of the upper and lower ring frames to the joints of the two sets of mating protective tube components, using fixing bolts and nuts to secure them. This ensures the structural stability of the protective tube component connection and installation. With the assistance of the fastening ring and anti-slip patch, the structural stability and tightness of the connection between the protective tube component and the connecting ring frame are ensured, preventing unnecessary structural loosening. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the axial side view of the body structure of a Z-shaped longitudinal water-blocking medium and high voltage power cable according to the present invention.

[0017] Figure 2 This is a schematic diagram of the protective pipe component of a Z-shaped longitudinal water-blocking medium and high voltage power cable according to the present invention.

[0018] Figure 3 This is a schematic diagram showing the disassembled structure of the fixing ring frame component of a Z-shaped longitudinal water-blocking medium and high voltage power cable according to the present invention.

[0019] Figure 4 This is a schematic diagram of the connecting ring structure of a Z-shaped longitudinal water-blocking medium and high voltage power cable according to the present invention.

[0020] In the diagram: 1. Main body of medium and high voltage power cable; 2. Protective pipe component; 201. Protective outer pipe; 202. Support sleeve; 203. Limiting ring groove; 204. Waterproof inner pipe; 3. Fixed ring frame component; 301. Fastening bolt; 302. Ring frame main body; 303. Connecting seat; 304. Anti-slip pad; 305. Fixed support leg; 306. Fixed angle plate; 4. Connecting ring frame component; 401. Upper ring frame; 402. Lower ring frame; 403. Fastening ring; 404. Anti-slip patch; 405. Fixing bolt; 406. Fixing nut; 5. Support screw; 6. Limiting nut. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 4 As shown, a Z-shaped longitudinal water-blocking medium- and high-voltage power cable includes a medium- and high-voltage power cable body 1 and a fixing ring frame component 3. The outer surface of the medium- and high-voltage power cable body 1 is tightly fitted with a fixing ring frame component 3, which is symmetrically installed on both ends of the middle outer surface of the protective pipe component 2. Both ends of the protective pipe component 2 are provided with connecting ring frame components 4. The two ends of the fixing ring frame component 3 are horizontally connected with support screws 5, and one end of the support screws 5 is equipped with a limit nut 6. The fixing ring frame component 3 includes a fastening bolt 301, a ring frame body 302, a connecting seat 303, an anti-slip pad 304, a fixing support leg 305, and a fixing angle plate 306. The middle of the fastening bolt 301 is symmetrically connected with the ring frame body 302, and the surface of the ring frame body 302 near the support screws 5 is provided with a connecting seat 303. The surface of the connecting seat 303 near the protective pipe component 2 is covered with an anti-slip pad 304. The lower end of the ring frame body 302 near the connecting seat 303 is provided with a connecting seat 303. The device has a fixed support leg 305, and a fixed angle plate 306 is connected to the lower end of the fixed support leg 305. The fastening bolt 301 is horizontally threaded to the upper and lower ends of the ring frame body 302. The ring frame body 302, the connecting seat 303 and the fixed support leg 305 are integrated into one structure. The support screw 5 is horizontally threaded through the middle of the connecting seat 303. The anti-slip pad 304 is tightly attached to one side surface of the ring frame body 302. The fixed support leg 305 and the fixed angle plate 306 are connected and combined by a hinge structure. The two sets of ring frame bodies 302 are sandwiched between the two ends of the protective outer tube 201 and spliced ​​and fixed by the fastening bolt 301. At the same time, the fixed angle plate 306 at the bottom of the fixed support leg 305, together with the bolt, is used to fix the whole device to the installation structure surface. Then, the support screw 5 is horizontally screwed into the connecting seat 303 on the side of the two sets of ring frame bodies 302, so that it can play a combined connection role between the two sets of fixed ring frame components 3.

[0023] like Figures 1 to 4As shown, the protective pipe component 2 includes a protective outer pipe 201, a support sleeve 202, a limiting annular groove 203, and a waterproof inner pipe 204. The support sleeve 202 is sleeved on the middle and both outer surfaces of the protective outer pipe 201, and the limiting annular groove 203 is formed on the surface of both ends of the protective outer pipe 201 near the edge. The waterproof inner pipe 204 is installed inside the protective outer pipe 201. The support sleeve 202 itself adopts a corrugated pipe structure, and the support sleeve 202 and the protective outer pipe 201 are at a certain angle. The connection is fixed, and the waterproof inner tube 204 is tightly fitted to the inner wall surface of the protective outer tube 201. The connecting ring frame component 4 includes an upper ring frame 401, a lower ring frame 402, a fastening ring 403, an anti-slip patch 404, a fixing bolt 405, and a fixing nut 406. The lower ring frame 402 is provided at the bottom of the upper ring frame 401, and the fastening ring 403 and the anti-slip patch 404 are respectively installed and covered on the inner surfaces of the upper ring frame 401 and the lower ring frame 402. Both ends are vertically mounted with fixing bolts 405, and one end of the fixing bolt 405 is threadedly connected to a fixing nut 406. The upper ring frame 401 and the lower ring frame 402 have the same structure, and the fixing bolts 405 are threadedly connected to both the upper ring frame 401 and the lower ring frame 402. The fastening ring 403 is symmetrically fitted and installed on the inner wall surfaces of the upper ring frame 401 and the lower ring frame 402, and the inner surface structure of the limiting ring groove 203 matches the outer surface structure of the fastening ring 403. Only one of these components needs to be installed. By fitting the outer protective tube 201, which has a waterproof inner tube 204 on its inner wall surface, onto the outer surface of the medium- and high-voltage power cable body 1, the structural combination between the medium- and high-voltage power cable body 1 and the protective tube component 2 can be completed. In addition, through the structural setting of the connecting ring frame component 4, it is only necessary to fasten the upper ring frame 401 and the lower ring frame 402 to the joint of the two sets of mating protective tube components 2, and use the fixing bolt 405 and the fixing nut 406 to connect and fix the upper ring frame 401 and the lower ring frame 402.

[0024] In summary, as Figures 1 to 4 As shown, when using this Z-type longitudinal water-blocking medium and high voltage power cable, firstly, the protective outer tube 201 with a waterproof inner tube 204 on its inner wall surface is sleeved onto the outer surface of the medium and high voltage power cable body 1. Then, as needed, multiple sets of protective tube components 2 are sleeved onto the outer surface of the entire medium and high voltage power cable body 1.

[0025] Then, the two sets of fixed ring frame components 3 are combined with the outer surface of the protective outer tube 201 with the support sleeve 202 on the surface. It is only necessary to splice the two sets of ring frame bodies 302 left and right and connect one end of the protective tube component 2 through the medium and high voltage power cable body 1. Then, use two sets of fastening bolts 301 to fasten the upper and lower ends of the spliced ​​two sets of ring frame bodies 302. Then, as needed, make appropriate adjustments to the fixing angle plate 306 at the lower end of the fixing leg 305 and fix it to the installation structure surface with bolts.

[0026] If it is necessary to ensure the structural stability of the main body 1 of the medium and high voltage power cable, then it is only necessary to screw the two sets of support screws 5 horizontally into the connecting seat 303 on the side of the ring frame main body 302, and use the limit nut 6 to combine the two sets of fixed ring frame components 3 to achieve the structural combination and play the role of support frame structure.

[0027] When the connecting ring frame component 4 is required, simply fasten the upper ring frame 401 and the lower ring frame 402, which have fastening rings 403 and anti-slip patches 404 on one side surface, to the connecting ends of the two sets of protective tube components 2, and embed the fastening ring 403 into the inside of the limiting ring groove 203. Then, use two sets of fixing bolts 405 and fixing nuts 406 to connect and fix the upper ring frame 401 and the lower ring frame 402.

[0028] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A Z-shaped longitudinal water-blocking medium- and high-voltage power cable, comprising a medium- and high-voltage power cable body (1) and a fixing ring frame component (3), characterized in that: The outer surface of the medium and high voltage power cable body (1) is tightly fitted with the fixed ring frame component (3), which is symmetrically installed on both ends of the middle outer surface of the protective pipe component (2). Both ends of the protective pipe component (2) are provided with connecting ring frame components (4). The two ends of the fixed ring frame component (3) are horizontally connected with support screws (5), and one end of the support screws (5) is equipped with a limit nut (6). The fixed ring frame component (3) includes a fastening bolt (301), a ring frame body (302), a connecting seat (303), an anti-slip pad (304), and a fixing bolt. The ring frame body (302) is symmetrically connected to the middle of the fastening bolt (301) and the ring frame body (302) is provided with a connecting seat (303) on the side surface of the ring frame body (302) near the supporting screw (5). The connecting seat (303) is covered with an anti-slip pad (304) on the side surface of the connecting seat (303) near the protective pipe component (2). The lower end of the ring frame body (302) near the connecting seat (303) is provided with a fixed support foot (305) and the lower end of the fixed support foot (305) is connected with a fixed angle plate (306).

2. A Z-shaped longitudinal water-blocking medium- and high-voltage power cable according to claim 1, characterized in that, The protective tube component (2) includes a protective outer tube (201), a support sleeve (202), a limiting annular groove (203), and a waterproof inner tube (204). The support sleeve (202) is sleeved on the middle part and the outer surfaces of both ends of the protective outer tube (201), and the limiting annular groove (203) is opened on the surfaces of both ends of the protective outer tube (201) near the edge. The waterproof inner tube (204) is provided inside the protective outer tube (201).

3. A Z-shaped longitudinal water-blocking medium- and high-voltage power cable according to claim 2, characterized in that, The support sleeve (202) itself adopts a corrugated pipe structure, and the support sleeve (202) and the protective outer tube (201) are fixedly connected, and the waterproof inner tube (204) is tightly attached to the inner wall surface of the protective outer tube (201).

4. A Z-shaped longitudinal water-blocking medium- and high-voltage power cable according to claim 1, characterized in that, The fastening bolt (301) is horizontally threaded to the upper and lower ends of the ring frame body (302), and the ring frame body (302), the connecting seat (303) and the fixed support (305) are integrated into one structure, and the support screw (5) is horizontally threaded through the middle of the connecting seat (303).

5. A Z-shaped longitudinal water-blocking medium- and high-voltage power cable according to claim 1, characterized in that, The anti-slip pad (304) is tightly attached to one side surface of the ring frame body (302), and the fixed support (305) and the fixed corner plate (306) are connected and combined by a hinge structure.

6. A Z-shaped longitudinal water-blocking medium- and high-voltage power cable according to claim 2, characterized in that, The connecting ring frame component (4) includes an upper ring frame (401), a lower ring frame (402), a fastening ring (403), an anti-slip patch (404), a fixing bolt (405), and a fixing nut (406). The lower ring frame (402) is provided at the bottom of the upper ring frame (401), and the fastening ring (403) and the anti-slip patch (404) are respectively installed and covered on the inner surfaces of the upper ring frame (401) and the lower ring frame (402). The fixing bolts (405) are vertically installed at both ends of the upper ring frame (401) and the lower ring frame (402), and a fixing nut (406) is threaded to one end of the fixing bolt (405).

7. A Z-shaped longitudinal water-blocking medium- and high-voltage power cable according to claim 6, characterized in that, The upper ring frame (401) and the lower ring frame (402) have the same structure, and the fixing bolts (405) are threadedly connected to the upper ring frame (401) and the lower ring frame (402).

8. A Z-shaped longitudinal water-blocking medium- and high-voltage power cable according to claim 6, characterized in that, The fastening ring (403) is symmetrically fitted and installed on the inner wall surfaces of the upper ring frame (401) and the lower ring frame (402), and the inner surface structure of the limiting ring groove (203) matches the outer surface structure of the fastening ring (403).

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