Plastic conduit convenient to connect and seal for power cable

Abstract

The utility model relates to the technical field of plastic conduits, in particular to a convenient-to-connect and seal plastic conduit for a power cable, which comprises a connecting conduit, connecting plates are mechanically connected to two ends of the outer wall of the connecting conduit, an electronic cable is connected to the outer wall of the connecting conduit in a sleeving manner, and a clamping mechanism is connected to the outer wall of each connecting plate in a threaded manner. And a sealing mechanism is machined on the inner wall of the connecting guide pipe, and the inner wall of the connecting guide pipe is connected and attached to the outer wall of the electronic cable in a sleeving mode. According to the utility model, through mutual cooperation of internal parts of the clamping mechanism, the two connecting conduits can clamp and sleeve the outer walls of the electronic cables, so that the two electronic cables are mutually butted and fixed, and through mutual cooperation of internal parts of the sealing mechanism, the sealing performance of the joint of the two connecting conduits can be completed. And the sealing performance of the sleeving connection part of the electronic cable and the connection conduit is improved, so that the connection part of the electronic cable is prevented from being eroded by water vapor.

Description

Technical Field

[0001] This utility model relates to the field of plastic conduit technology, specifically to a plastic conduit for power cables that is easy to connect and seal. Background Technology

[0002] High-voltage cables are a type of power cable and an indispensable facility in power transmission systems. The conductors of high-voltage cables are mostly made of copper, allowing them to withstand large currents. Therefore, high-voltage cables are primarily used in the main power transmission lines. With the advent of optical fiber in recent years, data transmission capacity and speed have increased, and its applications are also growing. During the use of power cables, cable connections are frequently required, necessitating protection of the joints.

[0003] A search revealed a utility model patent with publication number CN213692574U, which discloses a smart power cable connector sleeve. The sleeve includes a first cable connector, a positioning disc, and a sealing washer. The first cable connector has an inner insulating protective layer, and the inner wall of this layer is protected by a lead sheath. A first connector is located on the right side of the positioning disc, and the outer wall of the right end of the first connector has a connecting thread. The sealing washer is located on the right side of the connecting thread. A movable fixing sleeve is distributed at the right end of the connecting rod, and a second connector is located inside the movable fixing sleeve. A second cable connector is fixed to the right end of the second connector. This smart power cable connector sleeve features a first connector and a second connector. The movable fixing sleeve facilitates the connection between the first and second connectors, simplifying wiring for workers. Furthermore, the fixing ring allows for the concealment of the internal wiring components, significantly improving the safety of the wiring connection.

[0004] While the aforementioned patent uses a retaining ring to conceal the internal wiring, thereby greatly improving the safety of the wiring, cables are generally buried outdoors or underground. Although the retaining ring in the aforementioned device can conceal the internal wiring, it does not have extremely high sealing and waterproof properties. As a result, when the cable is buried underground, it will corrode the cable connection, causing the cable connection to be exposed, thus affecting the normal use and safety of the cable.

[0005] Therefore, it is necessary to propose a plastic conduit for power cables that is easy to connect and seal in order to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a plastic conduit for power cables that facilitates connection and sealing. Through the cooperation of internal parts of the clamping mechanism, two connecting conduits can be clamped and sleeved onto the outer wall of the electronic cable, fixing the two electronic cables together. The cooperation of internal parts of the sealing mechanism ensures a tight seal at the connection point of the two connecting conduits, improving the sealing performance of the connection between the electronic cable and the connecting conduit. This prevents moisture from corroding the connection point of the electronic cable, thus solving the problem that while existing fixing rings can conceal internal wiring, they lack high sealing and waterproofing properties, leading to corrosion of the cable connection point when the cable is buried underground, exposing the connection point and affecting the normal use and safety of the cable.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a plastic conduit for power cables that is easy to connect and seal, comprising a connecting conduit, connecting plates mechanically connected to both ends of the outer wall of the connecting conduit, an electronic cable sleeved and connected to the outer wall of the connecting conduit, a clamping mechanism threadedly connected to the outer wall of the connecting plate and extending through the connecting plate to the interior of the connecting conduit, and a sealing mechanism mechanically machined to the inner wall of the connecting conduit and sleeved and fitted to the outer wall of the electronic cable;

[0008] The clamping mechanism includes a fastening component, which is threaded to the top of the connecting plate and extends to the bottom of the connecting plate. A sliding plate is slidably connected to the inner wall of the connecting plate and sleeved with the outer wall of the fastening component. A connecting spring is mechanically connected between the sliding plate and the inner wall of the connecting conduit. An arc-shaped plate is mechanically connected to the top of the sliding plate near the top of the connecting conduit and is slidably connected to the inner wall of the connecting conduit. A clamping plate is mechanically connected to the bottom of the arc-shaped plate and extends to the inner wall of the connecting conduit, fitting against the outer wall of the electronic cable.

[0009] The sealing mechanism includes multiple sealing rings, which are mechanically connected to the inner wall of the connecting conduit and fit snugly against the outer wall of the electronic cable. A first sealing strip is mechanically connected to both sides of the bottom end of the connecting conduit, and a second sealing strip is mechanically connected to both sides of the top end of the connecting conduit and is located on one side of the first sealing strip. Both the first and second sealing strips penetrate into the interior of the connecting conduit.

[0010] Preferably, the fastening assembly consists of bolts and nuts, which are located at the top and bottom of the connecting plate, respectively. The surfaces of the connecting plate and the sliding plate are provided with threaded holes that match the fastening assembly.

[0011] Preferably, the inner wall of the connecting plate is provided with a sliding groove that matches the sliding plate, and the threaded holes on the surface of the sliding plate and the threaded holes on the surface of the connecting plate are staggered.

[0012] Preferably, the inner wall of the connecting conduit is provided with a support groove that matches the arc plate, and the inner wall of the connecting conduit is provided with a clamping groove that matches the clamping plate. The inner wall of the clamping plate is mechanically connected with multiple arc rubber strips.

[0013] Preferably, the top and bottom ends of the connecting conduit are provided with sealing grooves that match the first sealing strip and the second sealing strip, and the first sealing strip, the second sealing strip and the sealing groove form a multi-N-shaped structure.

[0014] Preferably, a plurality of sealing rings are distributed in a ring on the inner wall of the connecting conduit, and the sealing rings have a conical structure, and the main material of the sealing rings is epoxy resin.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. By connecting two electronic cables together and fitting two connecting conduits to the outer wall of the electronic cables, the connecting plates on the outer wall of the connecting conduits are made to fit together. Rotating the fastening component allows the fastening component to pass through the connecting plate through the thread, making the fastening component contact the sliding plate and squeeze the sliding plate. The sliding plate is compressed by the force of the connecting spring and moves. The movement of the sliding plate drives the arc plate to move, and the movement of the arc plate drives the clamping plate to move. The clamping plate moves out from the inner wall of the connecting conduit and fits against the outer wall of the electronic cable. The inner wall of the clamping plate is mechanically connected with multiple arc rubber strips, which allows the clamping plate to clamp and fix the electronic cables after they are connected in the connecting conduit, and to clamp and seal the connection of the electronic cables.

[0017] 2. After the fastening components are used to secure the connection between the connector and the connecting plate, the two connecting conduits are fitted together to clamp and fix the outer wall of the electronic cable. Sealing grooves matching the first and second sealing strips are provided at both the top and bottom of the connecting conduits. The first and second sealing strips and the sealing grooves form a multi-layered N-shaped structure, facilitating insulation protection of the gap at the connection point of the two connecting conduits and preventing moisture ingress. Multiple sealing rings are distributed in a ring on the inner wall of the connecting conduits. The sealing rings are conical in shape and made primarily of epoxy resin, which improves their corrosion resistance and insulation, thereby increasing the seal between the connecting conduits and the electronic cable and preventing moisture from corroding the connection point of the electronic cable, thus affecting its normal use and safety. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the connecting conduit and the electronic cable of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the connecting conduit of this utility model;

[0022] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Connecting conduit; 101. Connecting plate; 2. Electronic cable; 3. Clamping mechanism; 301. Fastening assembly; 302. Sliding plate; 303. Connecting spring; 304. Arc plate; 305. Clamping plate; 4. Sealing mechanism; 401. Sealing ring; 402. No. 1 sealing strip; 403. No. 2 sealing strip. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-4 The plastic conduit for power cables shown is easy to connect and seal. It includes a connecting conduit 1, with connecting plates 101 mechanically connected to both ends of the outer wall of the connecting conduit 1. An electronic cable 2 is sleeved and connected to the outer wall of the connecting conduit 1. A clamping mechanism 3 is threaded to the outer wall of the connecting plate 101 and extends through the connecting plate 101 into the interior of the connecting conduit 1. A sealing mechanism 4 is mechanically machined on the inner wall of the connecting conduit 1 and is sleeved and fitted to the outer wall of the electronic cable 2.

[0027] The clamping mechanism 3 includes a fastening component 301, which is threaded to the top end of the connecting plate 101 and extends to the bottom end of the connecting plate 101. A sliding plate 302 is slidably connected to the inner wall of the connecting plate 101 and is sleeved with the outer wall of the fastening component 301. A connecting spring 303 is mechanically connected between the sliding plate 302 and the inner wall of the connecting conduit 1. An arc-shaped plate 304 is mechanically connected to the top end of the sliding plate 302 near the top end of the connecting conduit 1 and is slidably connected to the inner wall of the connecting conduit 1. A clamping plate 305 is mechanically connected to the bottom end of the arc-shaped plate 304 and extends to the inner wall of the connecting conduit 1, and is in contact with the outer wall of the electronic cable 2.

[0028] The sealing mechanism 4 includes multiple sealing rings 401. The multiple sealing rings 401 are mechanically connected to the inner wall of the connecting conduit 1 and fit snugly against the outer wall of the electronic cable 2. A first sealing strip 402 is mechanically connected to both sides of the bottom end of the connecting conduit 1, and a second sealing strip 403 is mechanically connected to both sides of the top end of the connecting conduit 1 and is located on one side of the first sealing strip 402. Both the first sealing strip 402 and the second sealing strip 403 penetrate into the interior of the connecting conduit 1.

[0029] By cooperating with each other among the internal parts of the clamping mechanism 3, the two connecting conduits 1 can be clamped and sleeved on the outer wall of the electronic cable 2, so that the two electronic cables 2 are connected and fixed together. By cooperating with each other among the internal parts of the sealing mechanism 4, the sealing of the connection between the two connecting conduits 1 can be completed, and the sealing of the connection between the electronic cable 2 and the connecting conduit 1 can be improved, thereby preventing water vapor from corroding the connection of the electronic cable 2.

[0030] Refer to the instruction manual appendix Figure 1-4 The fastening assembly 301 consists of bolts and nuts, which are located at the top and bottom of the connecting plate 101, respectively. The surfaces of the connecting plate 101 and the sliding plate 302 are provided with threaded holes that match the fastening assembly 301. The fastening assembly 301, consisting of bolts and nuts, and the surfaces of the connecting plate 101 and the sliding plate 302, are provided with threaded holes that match the fastening assembly 301, so that the fastening assembly 301 can complete the connection and fixation between the connecting conduit 1 and the electronic cable 2.

[0031] Refer to the instruction manual appendix Figure 1-4 The inner wall of the connecting plate 101 is provided with a sliding groove that matches the sliding plate 302, and the threaded holes on the surface of the sliding plate 302 and the threaded holes on the surface of the connecting plate 101 are staggered. The sliding groove provided on the inner wall of the connecting plate 101 matches the sliding plate 302, and the threaded holes on the surface of the sliding plate 302 and the threaded holes on the surface of the connecting plate 101 are staggered, which facilitates the sliding plate 302 to slide on the inner wall of the connecting plate 101 when it is threadedly connected to the fastening component 301.

[0032] Refer to the instruction manual appendix Figure 1-4 The inner wall of the connecting conduit 1 is provided with a support groove that matches the arc plate 304, and the inner wall of the connecting conduit 1 is provided with a clamping groove that matches the clamping plate 305. The inner wall of the clamping plate 305 is mechanically connected with multiple arc rubber strips. The clamping groove that matches the clamping plate 305 and the multiple arc rubber strips that match the inner wall of the connecting conduit 1 facilitate the sliding of the clamping plate 305 inside the connecting conduit 1, thereby completing the clamping and fixing of the electronic cable 2 after they are connected to each other inside the connecting conduit 1.

[0033] Refer to the instruction manual appendix Figure 1-4The top and bottom ends of the connecting conduit 1 are provided with sealing grooves that match the first sealing strip 402 and the second sealing strip 403. The first sealing strip 402 and the second sealing strip 403 form a multi-N-shaped structure with the sealing grooves. The sealing grooves at the top and bottom ends of the connecting conduit 1 that match the first sealing strip 402 and the second sealing strip 403, and the multi-N-shaped structure with the first sealing strip 402 and the second sealing strip 403, facilitate insulation protection of the gap at the connection of the two connecting conduits 1, and prevent moisture from entering.

[0034] Refer to the instruction manual appendix Figure 1-4 Multiple sealing rings 401 are distributed in a ring on the inner wall of the connecting conduit 1, and the sealing rings 401 have a conical structure. The main material of the sealing rings 401 is epoxy resin. The multiple sealing rings 401 distributed in a ring on the inner wall of the connecting conduit 1, and the conical structure of the sealing rings 401, with epoxy resin as the main material, facilitate the sealing of the connecting conduit 1 and the electronic cable 2, and improve the corrosion resistance and insulation of the sealing rings 401.

[0035] The working principle of this practical application is as follows:

[0036] Refer to the instruction manual appendix Figure 1-4 By connecting two electronic cables 2 together and fitting two connecting conduits 1 to the outer wall of the electronic cables 2, the connecting plates 101 on the outer wall of the connecting conduits 1 are brought into contact with each other. The fastening component 301 is rotated so that the fastening component 301 passes through the connecting plate 101 through the thread, so that the fastening component 301 contacts the sliding plate 302 and squeezes the sliding plate 302. The sliding plate 302 is compressed and the connecting spring 303 is contracted and moved under the force. The movement of the sliding plate 302 drives the arc plate 304 to move. The movement of the arc plate 304 drives the clamping plate 305 to move, so that the clamping plate 305 moves out from the inner wall of the connecting conduit 1 and comes into contact with the outer wall of the electronic cables 2. The inner wall of the clamping plate 305 is mechanically connected with multiple arc rubber strips, so that the clamping plate 305 can clamp and fix the electronic cables 2 after they are connected in the connecting conduit 1, and clamp and seal the connection of the electronic cables 2.

[0037] Refer to the instruction manual appendix Figure 1-4After the fastening component 301 completes the connection and fastening between the connector and the connecting plate 101, the two connecting conduits 1 are fitted together to clamp and fix the outer wall of the electronic cable 2. The top and bottom of the connecting conduits 1 are provided with sealing grooves that match the first sealing strip 402 and the second sealing strip 403. The first sealing strip 402 and the second sealing strip 403 form a multi-N-shaped structure with the sealing grooves, which facilitates insulation protection of the gap at the connection of the two connecting conduits 1 and prevents moisture from entering. Multiple sealing rings 401 are distributed in a ring on the inner wall of the connecting conduits 1. The sealing rings 401 have a conical structure and are mainly made of epoxy resin, which can improve the corrosion resistance and insulation of the sealing rings 401. This can increase the sealing between the connecting conduits 1 and the electronic cable 2 and prevent moisture from corroding the connection of the electronic cable 2, thus affecting the normal use and safety of the electronic cable 2.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A plastic conduit for power cables that facilitates connection and sealing, characterized in that: The device includes a connecting conduit (1), with connecting plates (101) mechanically connected to both ends of the outer wall of the connecting conduit (1), and an electronic cable (2) sleeved on the outer wall of the connecting conduit (1). A clamping mechanism (3) is threaded on the outer wall of the connecting plate (101) and extends through the connecting plate (101) to the interior of the connecting conduit (1). A sealing mechanism (4) is mechanically machined on the inner wall of the connecting conduit (1) and fits snugly against the outer wall of the electronic cable (2). The clamping mechanism (3) includes a fastening component (301), which is threaded to the top end of the connecting plate (101) and extends to the bottom end of the connecting plate (101). A sliding plate (302) is slidably connected to the inner wall of the connecting plate (101) and sleeved with the outer wall of the fastening component (301). A connecting spring (303) is mechanically connected between the sliding plate (302) and the inner wall of the connecting conduit (1). An arc-shaped plate (304) is mechanically connected to the top end of the sliding plate (302) near the connecting conduit (1) and slidably connected to the inner wall of the connecting conduit (1). A clamping plate (305) is mechanically connected to the bottom end of the arc-shaped plate (304) and extends to the inner wall of the connecting conduit (1) and fits against the outer wall of the electronic cable (2). The sealing mechanism (4) includes a sealing ring (401), and there are multiple sealing rings (401). The multiple sealing rings (401) are mechanically connected to the inner wall of the connecting conduit (1) and sleeved and fitted to the outer wall of the electronic cable (2). A first sealing strip (402) is mechanically connected to both sides of the bottom end of the connecting conduit (1), and a second sealing strip (403) is mechanically connected to both sides of the top end of the connecting conduit (1) and is located on one side of the first sealing strip (402). The first sealing strip (402) and the second sealing strip (403) both penetrate into the interior of the connecting conduit (1).

2. The plastic conduit for power cables that facilitates connection and sealing according to claim 1, characterized in that: The fastening assembly (301) consists of bolts and nuts, which are located at the top and bottom of the connecting plate (101), respectively. The surfaces of the connecting plate (101) and the sliding plate (302) are provided with threaded holes that match the fastening assembly (301).

3. The plastic conduit for power cables that facilitates connection and sealing according to claim 1, characterized in that: The inner wall of the connecting plate (101) is provided with a sliding groove that matches the sliding plate (302), and the threaded holes on the surface of the sliding plate (302) and the threaded holes on the surface of the connecting plate (101) are staggered.

4. A plastic conduit for power cables that facilitates connection and sealing, as described in claim 1, characterized in that: The inner wall of the connecting conduit (1) is provided with a support groove that matches the arc plate (304), and the inner wall of the connecting conduit (1) is provided with a clamping groove that matches the clamping plate (305). The inner wall of the clamping plate (305) is mechanically connected with multiple arc rubber strips.

5. A plastic conduit for power cables that facilitates connection and sealing according to claim 1, characterized in that: The top and bottom ends of the connecting conduit (1) are provided with sealing grooves that match the first sealing strip (402) and the second sealing strip (403), and the first sealing strip (402), the second sealing strip (403) and the sealing groove form a multi-N-shaped structure.

6. A plastic conduit for power cables that facilitates connection and sealing according to claim 1, characterized in that: Multiple sealing rings (401) are distributed in a ring on the inner wall of the connecting conduit (1), and the sealing rings (401) have a conical structure. The main material of the sealing rings (401) is epoxy resin.

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