Buried PVC-C cable sheath tube

Abstract

The utility model relates to the technical field of cable sheath pipes, and particularly discloses a buried PVC-C cable sheath pipe, which comprises a first sheath pipe and a second sheath pipe positioned on the right side of the first sheath pipe, and a lining pipe is inserted into the opposite sides of the first sheath pipe and the second sheath pipe. The outer side of the joint of the first protective sleeve and the second protective sleeve is sleeved with a connecting sleeve, and the left side and the right side of the outer wall of the connecting sleeve are both in threaded connection with connecting pipes. During use, the left end of the lining pipe is inserted into the first protective sleeve, then the first protective sleeve is sleeved with the left end of the connecting sleeve, then the outer wall of the lining pipe is sleeved with the left side of the second protective sleeve, and the connecting pipe on the outer side of the first protective sleeve and the outer side of the second protective sleeve is in threaded connection to the outer wall of the limiting ring. And furthermore, the first sheath pipe and the second sheath pipe can be tightly connected through mutual matching of the lining pipe, the connecting sleeve and the connecting pipe, so that the cable is prevented from being damaged by external force.

Description

Technical Field

[0001] The utility model relates to the technical field of cable sheath pipes, in particular to an underground PVC-C cable sheath pipe. Background Art

[0002] Buried PVC-C cable conduit, also known as "buried chlorinated polyvinyl chloride (PVC-C) conduit for high-voltage power cables," is primarily used for laying power cables, guiding and protecting them. PVC-C cable conduit is widely used in urban renovation projects, airport construction, transportation, and streetlight installations, particularly in protecting power cables.

[0003] PVC-C cable conduits come in a variety of sizes and can be customized to meet specific project requirements. During installation, due to limited pipe length, multiple sections of conduit may need to be joined together.

[0004] At present, during the use of buried PVC-C cable sheath pipes, the butt-jointed sheath pipes are only connected by threaded connection rings, resulting in an insufficient connection, which easily causes external force damage to the cable during use. Therefore, it is necessary to propose a buried PVC-C cable sheath pipe to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide an underground PVC-C cable sheath pipe, which has the effect of stably connecting the first sheath pipe and the second sheath pipe, so that the first sheath pipe and the second sheath pipe are tightly connected to prevent the cable from being damaged by external forces.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an underground PVC-C cable sheath tube, comprising a first sheath tube and a second sheath tube located on the right side of the first sheath tube, an inner lining tube is inserted into the opposite side of the first sheath tube and the second sheath tube, the middle part of the outer wall of the inner lining tube is fixedly connected to a convex ring that abuts against the opposite side of the first sheath tube and the second sheath tube, a connecting sleeve is sleeved on the outer side of the connection between the first sheath tube and the second sheath tube, a limiting ring is fixedly connected to the middle part of the outer wall of the connecting sleeve, and connecting pipes are threadedly connected on both sides of the outer wall of the connecting sleeve.

[0007] In order to ensure a tight connection between the inner lining tube and the first sheath tube and the second sheath tube, as a preferred buried PVC-C cable sheath tube of the present invention, the outer wall of the inner lining tube is installed with a sealing sleeve located on the inner wall of the first sheath tube and the second sheath tube.

[0008] In order to improve the tightness of the connection between the connecting sleeve and the first sheath tube and the second sheath tube, as a preferred buried PVC-C cable sheath tube of the present invention, a sealing liquid is coated between the inner wall of the connecting sleeve and the outer walls of the first sheath tube and the second sheath tube.

[0009] In order to limit and fix the limiting ring and the convex ring, as a preferred buried PVC-C cable sheath pipe of the present invention, the outer wall of the limiting ring and the convex ring are connected by bolts.

[0010] In order to increase the stability of the connection between the connecting pipe and the limiting ring, as a preferred buried PVC-C cable sheath pipe of the present invention, the opposite sides of the two connecting pipes are in contact with the left and right sides of the limiting ring.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] The utility model firstly sleeves the two connecting tubes on the outer walls of the first sheath tube and the second sheath tube respectively, then inserts the left end of the inner lining tube into the first sheath tube, then sleeves the left end of the connecting sleeve on the outside of the first sheath tube, and then sleeves the left side of the second sheath tube on the outer wall of the inner lining tube, and makes the opposite sides of the first sheath tube and the second sheath tube abut against the convex ring, and then threads the connecting tubes on the outside of the first sheath tube and the second sheath tube on the outer wall of the limiting ring, thereby achieving the effect of stable connection between the first sheath tube and the second sheath tube, and the inner lining tube, the connecting sleeve and the connecting tube cooperate with each other to make the first sheath tube and the second sheath tube tightly connected to prevent the cable from being damaged by external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall structural diagram of the utility model;

[0014] Figure 2 This is the overall cross-sectional structural diagram of the utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the inner liner pipe of the present utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the connecting sleeve and connecting pipe of the utility model.

[0017] In the figure: 1. first sheath tube; 2. second sheath tube; 3. inner liner tube; 301. sealing sleeve; 4. connecting sleeve; 401. limiting ring; 5. connecting tube. DETAILED DESCRIPTION

[0018] The present invention is further described below with reference to the accompanying drawings and specific embodiments to facilitate understanding of the present invention. The methods used in the present invention are conventional methods unless otherwise specified; the raw materials and devices used are conventional commercially available products unless otherwise specified.

[0019] See also Figures 1 to 4 A buried PVC-C cable sheath tube comprises a first sheath tube 1 and a second sheath tube 2 located on the right side of the first sheath tube 1, an inner lining tube 3 is inserted into the opposite side of the first sheath tube 1 and the second sheath tube 2, and a convex ring is fixedly connected to the middle of the outer wall of the inner lining tube 3, which abuts against the opposite side of the first sheath tube 1 and the second sheath tube 2. A connecting sleeve 4 is sleeved on the outer side of the connection between the first sheath tube 1 and the second sheath tube 2, and a limiting ring 401 is fixedly connected to the middle of the outer wall of the connecting sleeve 4, and connecting pipes 5 are threadedly connected to the left and right sides of the outer wall of the connecting sleeve 4.

[0020] In this embodiment: the two connecting tubes 5 are respectively sleeved on the outer walls of the first sheath tube 1 and the second sheath tube 2, and then the left end of the inner lining tube 3 is inserted into the inside of the first sheath tube 1, and then the left end of the connecting sleeve 4 is sleeved on the outside of the first sheath tube 1, and then the left side of the second sheath tube 2 is sleeved on the outer wall of the inner lining tube 3, and the opposite sides of the first sheath tube 1 and the second sheath tube 2 are abutted against the convex ring, and then the connecting tube 5 on the outside of the first sheath tube 1 and the second sheath tube 2 is threadedly connected to the outer wall of the limiting ring 401, thereby achieving the effect of stable connection of the first sheath tube 1 and the second sheath tube 2, and the inner lining tube 3, the connecting sleeve 4 and the connecting tube 5 cooperate with each other to make the first sheath tube 1 and the second sheath tube 2 tightly connected to prevent the cable from being damaged by external force.

[0021] As a technical optimization solution of the present invention, the outer wall of the inner lining pipe 3 is installed with a sealing sleeve 301 located on the inner walls of the first jacket pipe 1 and the second jacket pipe 2.

[0022] In this embodiment, the sealing sleeve 301 can ensure that the inner lining tube 3 is tightly connected to the first jacket tube 1 and the second jacket tube 2 .

[0023] As a technical optimization solution of the present invention, a sealing liquid is coated between the inner wall of the connecting sleeve 4 and the outer walls of the first sheath tube 1 and the second sheath tube 2 .

[0024] In this embodiment, by applying sealing liquid to the connection between the outer walls of the first sheath tube 1 and the second sheath tube 2 and the connecting sleeve 4, the tightness of the connection between the connecting sleeve 4 and the first sheath tube 1 and the second sheath tube 2 can be improved.

[0025] As a technical optimization solution of the present invention, the outer wall of the limiting ring 401 and the convex ring are connected by bolts.

[0026] In this embodiment, the limiting ring 401 and the convex ring can be fixed by bolts.

[0027] As a technical optimization solution of the present invention, opposite sides of the two connecting pipes 5 are in contact with the left and right sides of the limiting ring 401 .

[0028] In this embodiment, the connection between the connecting tube 5 and the limiting ring 401 is stabilized by the connecting tube 5 abutting against the limiting ring 401 .

[0029] Working principle:

[0030] First, respectively put the two connecting pipes 5 on the outer wall of the first casing pipe 1 and the second casing pipe 2, then insert the left end of the inner lining pipe 3 into the first casing pipe 1, so that the right side of the first casing pipe 1 abuts against the convex ring, then put the left end of the connecting sleeve 4 on the outside of the first casing pipe 1, and then put the left side of the second casing pipe 2 on the outer wall of the inner lining pipe 3, and abut against the convex ring. The sealing sleeve 301 can ensure that the inner lining pipe 3 and the first casing pipe 1 and the second casing pipe 2 are tightly connected, and apply sealing liquid on the position where the connecting sleeve 4 is installed to make the connecting sleeve 4 is stably installed on the outer wall of the connection between the first sheath tube 1 and the second sheath tube 2, and then the connecting tube 5 outside the first sheath tube 1 and the second sheath tube 2 is threadedly connected to the outer wall of the limiting ring 401, and at the same time, the opposite sides of the two connecting tubes 5 are in contact with the limiting ring 401, and finally the limiting ring 401 is connected to the convex ring by bolts, thereby achieving the effect of stable connection between the first sheath tube 1 and the second sheath tube 2, and the inner lining tube 3, the connecting sleeve 4 and the connecting tube 5 cooperate with each other to make the first sheath tube 1 and the second sheath tube 2 tightly connected to prevent the cable from being damaged by external forces.

[0031] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] However, the above description is merely a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A buried PVC-C cable sheath tube, comprising a first sheath tube (1) and a second sheath tube (2) located on the right side of the first sheath tube (1), characterized in that: An inner lining tube (3) is inserted into the interior of one side opposite to the first sheath tube (1) and the second sheath tube (2); a convex ring is fixedly connected to the middle of the outer wall of the inner lining tube (3) and is in contact with the opposite side of the first sheath tube (1) and the second sheath tube (2); a connecting sleeve (4) is sleeved on the outer side of the connection between the first sheath tube (1) and the second sheath tube (2); a limiting ring (401) is fixedly connected to the middle of the outer wall of the connecting sleeve (4); and connecting tubes (5) are threadedly connected to the left and right sides of the outer wall of the connecting sleeve (4).

2. The buried PVC-C cable sheath according to claim 1, characterized in that: The outer wall of the inner lining tube (3) is provided with a sealing sleeve (301) located on the inner walls of the first jacket tube (1) and the second jacket tube (2).

3. The buried PVC-C cable sheath according to claim 1, characterized in that: A sealing liquid is coated between the inner wall of the connecting sleeve (4) and the outer walls of the first protective sleeve tube (1) and the second protective sleeve tube (2).

4. The buried PVC-C cable sheath according to claim 1, characterized in that: The outer wall of the limiting ring (401) and the convex ring are connected via bolts.

5. The buried PVC-C cable sheath according to claim 1, characterized in that: The opposite sides of the two connecting pipes (5) are in contact with the left and right sides of the limiting ring (401).

Images