Power cable plastic protection tube

Abstract

The utility model discloses a kind of electric power cable plastic protection tubes, comprising: outer tube, the inside of the outer tube is provided with inner tube, the keel includes support ring and support rod, the outer end of the support rod is connected with connecting sheet, the inner side of the sheet body is provided with internal thread;Connecting sleeve, the connecting sleeve is set in the outer end of outer tube.The electric power cable plastic protection tube, keel is first fixed on inner tube, then inner tube is inserted into outer tube, then connecting sleeve is inserted into the end of outer tube, so that the conical nail of sheet body outside is inserted into the inner wall of outer tube, to ensure the fixed stability of keel, so that inner tube is fixed stable, when connecting sleeve and inner tube are adhered, sealing is carried out by sealing washer, avoid external rainwater dust into between outer tube and inner tube, avoid external rainwater dust into between outer tube and inner tube, by the setting of keel, the compression strength of plastic protection tube is enhanced, the grid structure in keel, facilitate the vibration of replacement pipe.

Description

Technical Field

[0001] This utility model relates to the field of power cable technology, specifically to a plastic protective tube for power cables. Background Technology

[0002] During the laying of power cables, plastic protective pipes are sometimes needed for cable protection. Plastic protective pipes have the characteristics of corrosion resistance, lightweight and high strength, and convenient installation, and can be used in various complex places, thus greatly facilitating the protection of power cables.

[0003] Existing plastic protective tubes are all integrally molded from plastic, which has insufficient compressive strength and is prone to breakage under heavy pressure, making them unsuitable for use in high-voltage environments. Therefore, we propose a new type of plastic protective tube for power cables to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a plastic protective tube for power cables to solve the problem mentioned in the background art that the current plastic protective tubes are all integrally molded from plastic, which have insufficient compressive strength and are prone to breakage when subjected to heavy pressure, making them inconvenient to use in high-pressure environments.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic protective tube for power cables, comprising: An outer tube is provided inside an inner tube, and a keel is provided between the outer tube and the inner tube. The keel includes a support ring and a support rod, and the support rod is connected to the outer side of the support ring. A connecting piece is connected to the outer end of the support rod, and the connecting piece includes a piece body, a tapered nail and an internal thread. The inner side of the piece body is provided with an internal thread, and the outer side of the piece body is connected with a tapered nail. A connecting sleeve is provided at the outer end of the outer tube, and the outer side of the connecting sleeve is provided with external threads.

[0006] Preferably, the length of the inner tube is less than the length of the outer tube, and sealing gaskets are symmetrically arranged at both ends of the inner tube.

[0007] Preferably, the support ring and the support rod form a cylindrical mesh structure, and the support rod is fixedly connected to the sheet body in an integrated structure.

[0008] Preferably, the sheet has a fan-shaped structure, and the outer side of the sheet is uniformly provided with conical nails.

[0009] Preferably, the connecting sleeves are symmetrically arranged at both ends of the inner tube, and the total length of the connecting sleeves and the inner tube on both sides is equal to the length of the outer tube.

[0010] Preferably, the connecting sleeve is threadedly connected to the internal thread on the plate body via an external thread, and the connecting sleeve is fixedly connected to the outer tube via the internal thread on the plate body, and the connecting sleeve and the inner tube are sealed by a sealing gasket.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The plastic protective tube for power cables first fixes the keel to the inner tube, then inserts the inner tube into the outer tube, and then inserts the connecting sleeve into the end of the outer tube and rotates it so that the external thread on the connecting sleeve connects with the internal thread on the plate. During the rotation of the connecting sleeve, the plate is squeezed, causing the conical nail on the outside of the plate to insert into the inner wall of the outer tube, thereby ensuring the stability of the keel and thus the stability of the inner tube. When the connecting sleeve and the inner tube are in contact, a sealing gasket is used to seal, preventing external rainwater and dust from entering between the outer and inner tubes. Similarly, a connecting sleeve is also installed on the other end of the outer tube. The installation of the connecting sleeve prevents external rainwater and dust from entering between the outer and inner tubes. The keel design enhances the compressive strength of the plastic protective tube, and the mesh structure in the keel facilitates the vibration of the tube. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall half-section structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of the connection between the dense keel and the connecting piece of this utility model; Figure 4 This is a schematic diagram of the overall structure of the connection between the connecting piece and the connecting sleeve of this utility model.

[0013] In the diagram: 1. Outer tube; 2. Inner tube; 3. Keel; 301. Support ring; 302. Support rod; 4. Connecting piece; 401. Piece body; 402. Tapered nail; 403. Internal thread; 5. Sealing gasket; 6. Connecting sleeve; 7. External thread. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides a technical solution: a plastic protective tube for power cables, comprising: an outer tube 1, an inner tube 2, a keel 3, a connecting piece 4, a sealing gasket 5, a connecting sleeve 6, and an external thread 7; An outer tube 1 is provided inside an inner tube 2, and a keel 3 is provided between the outer tube 1 and the inner tube 2. The keel 3 includes a support ring 301 and a support rod 302. The support ring 301 is connected to the outer side of the support rod 302, and the outer end of the support rod 302 is connected to a connecting piece 4. The connecting piece 4 includes a piece body 401, a tapered nail 402, and an internal thread 403. The inner side of the piece body 401 is provided with an internal thread 403, and the outer side of the piece body 401 is connected to a tapered nail 402. Connecting sleeve 6 is located at the outer end of the outer tube 1, and external thread 7 is provided on the outer side of the connecting sleeve 6.

[0016] like Figure 1 , Figure 2 and Figure 3 The length of the inner tube 2 is less than that of the outer tube 1, and sealing gaskets 5 are symmetrically arranged at both ends of the inner tube 2 to facilitate the installation of the inner tube 2. The support ring 301 and the support rod 302 form a cylindrical grid structure, and the support rod 302 is fixedly connected to the plate 401 in an integrated structure to enhance the strength of the plastic protective tube. The plate 401 has a fan-shaped structure, and tapered nails 402 are evenly arranged on the outer side of the plate 401 to provide conditions for fixing the connecting plate 4.

[0017] like Figure 2 , Figure 3 and Figure 4 The connecting sleeves 6 are symmetrically arranged at both ends of the inner tube 2, and the total length of the connecting sleeves 6 and the inner tube 2 is equal to the length of the outer tube 1 to ensure the overall strength. The connecting sleeves 6 are threaded to the internal threads 403 on the plate 401 through the external threads 7, and the connecting sleeves 6 are fixedly connected to the outer tube 1 through the internal threads 403 on the plate 401. The connecting sleeves 6 and the inner tube 2 are sealed by the sealing gasket 5 to facilitate the fixation of the inner tube 2.

[0018] Working principle: When using this plastic protective conduit for power cables, if... Figure 4 As shown, first fix the keel 3 to the inner tube 2, then insert the inner tube 2 into the outer tube 1, then insert the connecting sleeve 6 into the end of the outer tube 1 and rotate it, as shown. Figure 2 As shown, the external thread 7 on the connecting sleeve 6 connects with the internal thread 403 on the plate 401. During the rotation of the connecting sleeve 6, the plate 401 is squeezed, causing the tapered nail 402 on the outside of the plate 401 to insert into the inner wall of the outer tube 1, thereby ensuring the stability of the keel 3 and thus the stability of the inner tube 2. When the connecting sleeve 6 and the inner tube 2 are in contact, they are sealed by the sealing gasket 5. Similarly, the other end of the outer tube 1 is also fitted with the connecting sleeve 6. The installation of the connecting sleeve 6 prevents external rainwater and dust from entering between the outer tube 1 and the inner tube 2. This is the entire working process of the plastic protective tube for power cables. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0019] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. An electric power cable plastic protection tube, characterized in that, include: An outer tube (1) is provided with an inner tube (2) inside the outer tube (1), and a keel (3) is provided between the outer tube (1) and the inner tube (2). The keel (3) includes a support ring (301) and a support rod (302). The support rod (302) is connected to the outside of the support ring (301). The outer end of the support rod (302) is connected to a connecting piece (4). The connecting piece (4) includes a piece body (401), a tapered nail (402) and an internal thread (403). The inner side of the piece body (401) is provided with an internal thread (403), and the outer side of the piece body (401) is connected with a tapered nail (402). Connecting sleeve (6), the connecting sleeve (6) is disposed at the outer end of the outer tube (1), and the outer side of the connecting sleeve (6) is provided with external thread (7).

2. A plastic power cable protection tube according to claim 1, characterized in that: The length of the inner tube (2) is less than the length of the outer tube (1), and sealing gaskets (5) are symmetrically arranged at the left and right ends of the inner tube (2).

3. A plastic power cable protection tube according to claim 1, characterized in that: The support ring (301) and the support rod (302) form a cylindrical grid structure, and the support rod (302) is fixedly connected to the sheet (401) in an integrated structure.

4. A plastic power cable protection tube according to claim 1, characterized in that: The sheet (401) has a fan-shaped structure, and the outer side of the sheet (401) is uniformly provided with conical nails (402).

5. A plastic power cable protection tube according to claim 1, characterized in that: The connecting sleeves (6) are symmetrically arranged at both ends of the inner tube (2), and the total length of the connecting sleeves (6) and the inner tube (2) on both sides is equal to the length of the outer tube (1).

6. A plastic power cable protection tube according to claim 1, characterized in that: The connecting sleeve (6) is threadedly connected to the internal thread (403) on the plate body (401) via the external thread (7), and the connecting sleeve (6) is fixedly connected to the outer tube (1) via the internal thread (403) on the plate body (401), and the connecting sleeve (6) and the inner tube (2) are sealed by a sealing gasket (5).

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