An electrical power cable protection tube

Abstract

The utility model discloses a kind of electric power cable protection pipes, belong to protection pipe field.The device includes: protection pipe body and installation component.The radial cross section of protection pipe body is corrugated, and protection pipe body is divided into multiple concave parts and convex parts;Multiple concave parts and convex parts are arranged at intervals.Installation component connects two adjacent protection pipe bodies;Installation component includes two hoops one set in the butt joint of two protection pipe bodies;Two hoops one are detachably connected;Two sides of two hoops one are equipped with connecting piece;The other end of connecting piece is equipped with connecting frame.The utility model is pulled to the direction of hoop one by connecting piece connecting frame and hoop two, to make two groups of hoop two drive two protection pipe bodies to be extruded oppositely.Both protection pipe bodies can be closely combined, the sealing of connection place is greatly enhanced, and two pipes loosening or separation caused by external force can also be reduced, the stability and reliability of connection are improved.

Description

Technical Field

[0001] This utility model relates to the field of protective tubes, and in particular to a protective tube for power cables. Background Technology

[0002] Power cable protection conduits are protective tubes with a certain mechanical strength, laid on the outer layer of cables to prevent damage. Their core functions are to isolate them from mechanical impact and environmental corrosion, while preventing aging of the cable insulation layer and ensuring power supply safety. They are widely used in underground, overhead, or buried installations in municipal, chemical, and construction industries.

[0003] Traditional power cable protection conduits are typically connected using methods such as thermofusion welding. However, improper control of the thermofusion temperature can easily leave gaps, resulting in poor sealing. Furthermore, external forces can cause the two conduits to loosen or separate, reducing their tightness. Preheating the equipment is also required before connection, and the conduit must be allowed to cool and solidify after welding, making rapid connection impossible. Moreover, the joint is a permanent fusion, making disassembly difficult and maintenance challenging.

[0004] Therefore, this utility model proposes a power cable protection pipe. Utility Model Content

[0005] This utility model provides a power cable protection pipe that can solve the problems of unstable sealing and fastening between the two pipes when connecting the protection pipes in the prior art, as well as the complexity of disassembly and assembly.

[0006] A power cable protection pipe, comprising: The protective pipe body and the mounting assembly. The radial cross-section of the protective pipe body is corrugated, dividing it into multiple concave and convex sections; these sections are spaced apart. The mounting assembly connects two adjacent protective pipe bodies; it includes two clamps (first type) located at the joint of the two pipe bodies; these clamps are detachably connected; each clamp has a connector on both sides; the other end of each connector has a connecting bracket; each of the two pipe bodies has two clamps (second type) on the concave section near the joint; these clamps are detachably connected; the connecting bracket mates with the corresponding clamps (second type).

[0007] Preferably, both clamps are fitted to the protective pipe body and cover the interfaces of the two protective pipe bodies from both sides.

[0008] Preferably, the two clamps are detachably connected by bolts and nuts.

[0009] Preferably, each of the two clamps has a sealing ring on its inner wall; the two sealing rings together match and engage with the joint between the two protective tube bodies.

[0010] Preferably, multiple sets of connectors are evenly arranged between the clamp and the corresponding connecting frame.

[0011] Preferably, the connector includes a sleeve; the sleeve is hinged to the clamp; a sliding rod is slidably connected inside the sleeve; a spring is connected between the sleeve and the sliding rod; and the sliding rod is fixedly connected to the connecting frame.

[0012] Preferably, both clamps are fitted to the protective tube body and cover the recessed part of the protective tube body from both sides.

[0013] Preferably, the two clamps are detachably connected by bolts and nuts.

[0014] Preferably, the side of the connecting frame away from the first clamp is hook-shaped; the side of the second clamp away from the first clamp has an arc-shaped groove; the connecting frame and the arc-shaped groove are engaged and snapped together.

[0015] Preferably, the inner wall of the protective tube body is uniformly provided with a mesh structure.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: (1) The power cable protection pipe includes two clamps (first) installed at the joint of two protection pipe bodies; the two clamps (first) are detachably connected to each other; each clamp (first) has a connector on both sides; each connector has a connecting frame at the other end; each of the two protection pipe bodies has two clamps (second) on the recessed part near the joint; the two clamps (second) are detachably connected to each other; the connecting frame is matched with the clamps (second) on the corresponding side. By pulling the connecting frame and clamps (second) towards clamps (first) through the connector, the two sets of clamps (second) will cause the two protection pipe bodies to be squeezed against each other. This allows the two protection pipe bodies to be tightly joined, greatly enhancing the sealing of the joint, effectively preventing moisture, dust and other impurities from entering the pipe, protecting the internal cable from corrosion, reducing safety hazards such as short circuits and leakage, and ensuring safe and stable power transmission. It can also reduce the loosening or separation of the two pipes due to external forces, improve the stability and reliability of the connection, and extend the service life of the protection pipe and cable. Moreover, installation and disassembly are relatively quick and convenient, facilitating maintenance.

[0017] (2) The power cable protection pipe has a uniform mesh structure on the inner wall of the pipe body. This can disperse stress and better buffer when the pipe body is squeezed or collided by external force, thus avoiding local stress concentration that could damage the cable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the power cable protection pipe of this utility model; Figure 2 This is a cross-sectional view of the protective tube body of this utility model; Figure 3 This is a schematic diagram of the protective tube body and mounting components of this utility model; Figure 4 This is a schematic diagram of the connection structure between the connector, the connecting frame, and the clamp of this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Protective pipe body; 2. Mesh structure; 3. Installation components; 31. Clamp one; 32. Bolt one; 33. Sealing ring; 34. Sleeve; 35. Slide rod; 36. Spring; 37. Connecting bracket; 38. Clamp two; 39. Bolt two; 310. Arc groove. Detailed Implementation

[0020] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0021] like Figure 1-4 As shown in the figure, an embodiment of the present invention provides a power cable protection pipe, including a protection pipe body 1 and an installation assembly 3. The radial cross-section of the protection pipe body 1 is corrugated, dividing the protection pipe body 1 into multiple concave portions and convex portions; the multiple concave portions and convex portions are arranged at intervals. The installation assembly 3 connects two adjacent protection pipe bodies 1; the installation assembly 3 includes two clamps 31 disposed at the joint of the two protection pipe bodies 1; the two clamps 31 are detachably connected to each other; each of the two clamps 31 has a connector on both sides; the other end of each connector has a connecting bracket 37; each of the two protection pipe bodies 1 has two clamps 38 on the concave portion near the joint; the two clamps 38 are detachably connected to each other; the connecting bracket 37 is configured to cooperate with the clamps 38 on the corresponding side.

[0022] Further explanation: Both clamps 31 are fitted snugly against the protective pipe body 1, and respectively cover the interfaces of the two protective pipe bodies 1 from both sides. The two clamps 31 are detachably connected by bolts 32 and nuts. Each clamp 31 has a sealing ring 33 on its inner wall; the two sealing rings 33 together match and engage with the joint between the two protective pipe bodies 1. This effectively prevents moisture, dust, and other impurities from entering the protective pipe body 1, avoiding corrosion and damage to the internal cable, and ensuring the normal operation of the cable. When connecting the two protective pipe bodies 1, first align the openings of the two protective pipe bodies 1, then insert the concave portion of one protective pipe body 1's opening into the convex portion of the other protective pipe body 1's opening. This increases the contact area at the connection point of the two protective pipe bodies 1, thereby enhancing the connection strength, making the two pipes more tightly and securely joined, and effectively preventing moisture and humidity from seeping into the pipe. Next, two clamps 31 are fitted onto the interfaces of the two protective pipe bodies 1, and bolts 32 and nuts are screwed onto the joints of the two clamps 31 to fix the two clamps 31 together.

[0023] Further explanation: multiple sets of connectors are evenly distributed between clamp 31 and the corresponding connecting frame 37, making the connection between clamp 31 and connecting frame 37 more stable. The connector includes a sleeve 34; the sleeve 34 is hinged to clamp 31; a sliding rod 35 is slidably connected inside the sleeve 34; a spring 36 connects the sleeve 34 and the sliding rod 35; the sliding rod 35 is fixedly connected to the connecting frame 37. Two clamps 38 are fitted snugly against the protective pipe body 1, and respectively cover the recessed portion of the protective pipe body 1 from both sides. The two clamps 38 are detachably connected by bolts 39 and nuts. The side of the connecting frame 37 facing away from clamp 31 is hook-shaped; the side of clamp 38 facing away from clamp 31 has an arc-shaped groove 310; the connecting frame 37 engages with the arc-shaped groove 310. Two clamps 38 are fixedly connected by fitting them onto the recessed portion of the protective pipe body 1 and screwing bolts 39 and nuts onto the joint of the two clamps 38. Then, the hook-shaped end of the connecting bracket 37 is inserted into the arc-shaped groove 310 on the clamp 38, connecting clamp 31 and clamp 38. The spring 36 pulls the connecting bracket 37 and clamp 38 closer to clamp 31. Because clamp 38 is installed in the recessed portion of the protective pipe body 1, the convex portion of the protective pipe body 1 abuts against clamp 38, causing the two sets of clamps 38 to press the two protective pipe bodies 1 together, enhancing the bonding force between the two pipes.

[0024] The installation component 3 allows the two protective tube bodies 1 to fit together tightly, greatly enhancing the sealing of the connection and effectively preventing moisture, dust, and other impurities from entering the tubes. This protects the internal cables from corrosion, reduces safety hazards such as short circuits and leakage, and ensures safe and stable power transmission. It also reduces the likelihood of the two tubes loosening or separating due to external forces, improving the stability and reliability of the connection and extending the service life of the protective tubes and cables. Furthermore, installation and disassembly are quick and convenient, facilitating maintenance.

[0025] To further explain, the inner wall of the protective tube body 1 is uniformly provided with a mesh structure 2. This can disperse stress, and when the protective tube body 1 is subjected to external pressure or impact, it can better buffer the impact and avoid local stress concentration that could damage the cable.

[0026] The working principle of this utility model is as follows: When connecting two protective tube bodies 1, first align the openings of the two protective tube bodies 1, then insert the concave portion at the opening of one protective tube body 1 into the convex portion at the opening of the other protective tube body 1. Next, fit two clamps 31 onto the interface of the two protective tube bodies 1, and screw bolts 32 and nuts onto the mating joint of the two clamps 31 to fix them together. Next, fit two clamps 38 onto the concave portion of the protective tube body 1, and screw bolts 39 and nuts onto the mating joint of the two clamps 38 to fix them together. Finally, insert the hook-shaped end of the connecting bracket 37 into the arc-shaped groove 310 on the clamp 38 to connect clamps 31 and clamps 38. The spring 36 can pull the connecting frame 37 and the second clamp 38 closer to the first clamp 31. Since the second clamp 38 is installed in the concave part of the protective tube body 1, the convex part of the protective tube body 1 will abut against the second clamp 38, thereby causing the two sets of second clamps 38 to drive the two protective tube bodies 1 to press against each other, enhancing the bonding force between the two tubes.

[0027] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A power cable protection pipe, characterized in that, include The protective tube body (1) has a corrugated radial cross section, which divides the protective tube body (1) into multiple concave and convex parts; the multiple concave and convex parts are arranged at intervals. Installation component (3); Installation component (3) connects two adjacent protective pipe bodies (1); Installation component (3) includes two clamps (31) set at the joint of the two protective pipe bodies (1); The two clamps (31) are detachably connected to each other; Connectors are provided on both sides of the two clamps (31); Connectors (37) are provided at the other end of the connectors; Two clamps (38) are provided on the recessed part of the two protective pipe bodies (1) near the joint; The two clamps (38) are detachably connected to each other; Connectors (37) are set in conjunction with the clamps (38) on the corresponding side.

2. The power cable protection pipe according to claim 1, characterized in that, Both clamps (31) are fitted to the protective pipe body (1) and cover the interfaces of the two protective pipe bodies (1) from both sides.

3. The power cable protection pipe according to claim 2, characterized in that, The two clamps (31) are detachably connected by bolts (32) and nuts.

4. The power cable protection pipe according to claim 3, characterized in that, Both clamps (31) are provided with sealing rings (33) on their inner walls; the two sealing rings (33) are matched and engaged with the joint between the two protective pipe bodies (1).

5. A power cable protection pipe according to any one of claims 1-4, characterized in that, Multiple sets of connectors are evenly arranged between the clamp (31) and the corresponding connecting frame (37).

6. A power cable protection pipe according to claim 5, characterized in that, The connector includes a sleeve (34); the sleeve (34) is hinged to a clamp (31); a slide rod (35) is slidably connected inside the sleeve (34); a spring (36) is connected between the sleeve (34) and the slide rod (35); and the slide rod (35) is fixedly connected to the connecting frame (37).

7. A power cable protection pipe according to claim 6, characterized in that, Both clamps (38) are fitted to the protective tube body (1) and cover the concave part of the protective tube body (1) from both sides.

8. A power cable protection pipe according to claim 7, characterized in that, The two clamps (38) are detachably connected by bolts (39) and nuts.

9. A power cable protection pipe according to claim 8, characterized in that, The connecting frame (37) is hook-shaped on the side away from the first clamp (31); the second clamp (38) has an arc groove (310) on the side away from the first clamp (31); the connecting frame (37) and the arc groove (310) are engaged and snapped together.

10. A power cable protection pipe according to claim 1, characterized in that, The inner wall of the protective tube body (1) is uniformly provided with a mesh structure (2).

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