External-pressure-resistant MPP power cable protection pipe

Abstract

The utility model discloses an external pressure resistant MPP power cable protection tube, which relates to the technical field of power cable protection tubes, and comprises a body and a plurality of support frames with the same structure, and the body is fixedly connected with the support frames; the body is sleeved with an outer pipe. The outer part of the outer pipe is sleeved with a buffer sleeve; the front ends and the rear ends of the outer pipe and the buffering sleeve make contact with the supporting frame. External extrusion is buffered through the buffering sleeve, the body is sleeved with the outer pipe, the external pressure resisting effect of the body can be enhanced, and during buffering, the arc-shaped rod on the pressure resisting assembly moves in the long groove and extrudes the buffering spring in the groove, so that the buffering capacity of the buffering sleeve is improved, and the external pressure resisting effect of the body is improved; and cracks caused by large extrusion are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of power cable protection tubes, in particular to an external pressure resistant MPP power cable protection tube. Background Art

[0002] Existing MPP power cable protection pipes are generally buried in the ground when in use. When the ground is subjected to greater compression, the MPP pipe may also be subjected to external pressure. Although the existing MPP power cable protection pipe has a certain external pressure resistance effect, there is still a risk of the pipe body rupture when encountering large compression. For this reason, we propose an external pressure resistant MPP power cable protection pipe. Utility Model Content

[0003] The purpose of the utility model is to provide an external pressure resistant MPP power cable protection tube to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: an external pressure resistant MPP power cable protection tube, comprising a main body and a plurality of support frames of the same structure, wherein the main body and the support frames are fixedly connected;

[0005] The exterior of the body is sleeved with an outer tube;

[0006] The outer portion of the outer tube is sleeved with a buffer sleeve;

[0007] The front and rear ends of the outer tube and the buffer sleeve are in contact with the support frame;

[0008] The outer portion of the outer tube is uniformly and circumferentially provided with pressure-resistant components.

[0009] As a preferred solution of the external pressure resistant MPP power cable protection tube described in the utility model, the front and rear sides of the outer tube are coated with an adhesive layer, and the outer tube is bonded to the support frame through the adhesive layer.

[0010] As a preferred solution of the external pressure resistant MPP power cable protection tube described in the utility model, the pressure-resistant component includes protruding rods evenly arranged on the outer tube, and the outer tube and the protruding rods are integrally formed, and the outer tube and the protruding rods have the same length.

[0011] As a preferred solution of the external pressure resistant MPP power cable protection tube described in the utility model, wherein: the convex rod is provided with a groove extending to the outer tube, and buffer springs are evenly arranged in the groove along the length direction, and the buffer springs are connected to the arc rod, and the arc rod extends to the outside of the convex rod.

[0012] As a preferred solution of the external pressure resistant MPP power cable protection tube described in the utility model, the arc-shaped rod is slidably connected to the groove.

[0013] As a preferred solution of the external pressure resistant MPP power cable protection tube described in the utility model, long grooves are evenly opened inside the buffer sleeve, and the long grooves are in contact with the convex rods and the arc rods.

[0014] As a preferred solution of the external pressure resistant MPP power cable protection tube described in the utility model, the thickness of the outer tube is one centimeter, and the thickness of the buffer sleeve is three centimeters.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The buffer sleeve is used to buffer external pressure. The outer tube is sleeved on the main body to enhance the external pressure resistance of the main body. During buffering, the arc rod on the pressure-resistant component moves in the long slot, causing it to squeeze the buffer spring in the groove, thereby improving the buffering capacity of the buffer sleeve and improving the external pressure resistance of the main body, thereby avoiding rupture when encountering large extrusion;

[0017] 2. By providing adhesive layers on both the front and rear sides of the outer tube, it is easy to bond and fix with the support frame, thereby facilitating installation on the main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an external pressure resistant MPP power cable protection tube of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of an external pressure resistant MPP power cable protection tube of the utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the local structure of an external pressure resistant MPP power cable protection tube of the present invention.

[0021] In the figure: 1, body; 2, support frame; 3, outer tube; 4, buffer sleeve; 5, protruding rod; 6, groove; 7, buffer spring; 8, arc rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] As mentioned in the background art, in order to solve the problem that the pipe in the prior art has poor external pressure resistance, the present invention proposes an external pressure resistant MPP power cable protection pipe.

[0024] Example 1

[0025] Reference Figures 1 to 3 A MPP power cable protection tube resistant to external pressure includes a main body 1 and a plurality of support frames 2 of the same structure. The main body 1 and the support frames 2 are fixedly connected. The support frames 2 are used to support the long main body 1 and to connect and fix two adjacent main bodies 1 together.

[0026] An outer tube 3 is sleeved on the outside of the body 1 to improve the pressure resistance of the body 1;

[0027] A buffer sleeve 4 is sleeved on the outside of the outer tube 3 to buffer external extrusion;

[0028] The front and rear ends of the outer tube 3 and the buffer sleeve 4 are in contact with the support frame 2, so that the body 1 except for the part covered by the support frame 2 is covered by the buffer sleeve 4 and the outer tube 3;

[0029] The outer portion of the outer tube 3 is uniformly and circumferentially provided with pressure-resistant components.

[0030] Both the front and rear sides of the outer tube 3 are coated with an adhesive layer, and the outer tube 3 is bonded to the support frame 2 through the adhesive layer, so as to fix the outer tube 3.

[0031] After installing a support frame 2, the outer tube 3 and the buffer sleeve 4 are put on the main body 1, so that the outer tube 3 can be adhered to the support frame 2, and then the support frame 2 is installed on the main body 1, so that the front and rear sides of the buffer sleeve 4 are limited by the support frames 2 at both ends, and so on, so that the main body 1 is covered by the support frame 2 and the buffer sleeve 4.

[0032] The pressure-resistant component includes a protruding rod 5 evenly arranged on the outer tube 3, and the outer tube 3 and the protruding rod 5 are integrally formed. The outer tube 3 and the protruding rod 5 have the same length, wherein a groove 6 extending to the outer tube 3 is opened on the protruding rod 5, and a buffer spring 7 is evenly arranged in the groove 6 along the length direction, and the buffer spring 7 is connected to the arc rod 8, and the arc rod 8 extends to the outside of the protruding rod 5, so that during buffering, the buffer sleeve 4 is squeezed, and the arc rod 8 squeezes the buffer spring 7 in the groove 6, thereby improving the buffering capacity of the buffer sleeve 4 and reducing the extrusion of the outer tube 3, so that the external pressure resistance of the main body 1 is improved, and rupture is avoided when encountering large extrusion.

[0033] The arc rod 8 is slidably connected to the groove 6 to guide the movement of the arc rod 8.

[0034] Long grooves are evenly formed inside the buffer sleeve 4 , and the long grooves are in contact with both the protruding rod 5 and the arc-shaped rod 8 , so that the arc-shaped rod 8 can support the buffer sleeve 4 .

[0035] Example 2

[0036] Reference Figures 1 to 3 The thickness of the outer tube 3 is one centimeter, and the thickness of the buffer sleeve 4 is three centimeters, which are used to better buffer against external extrusion.

[0037] The rest of the structure is the same as that of Example 1.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An external pressure resistant MPP power cable protection tube, characterized by: include, A main body (1) and a plurality of support frames (2) having the same structure; The outer portion of the body (1) is sleeved with an outer tube (3); The outer portion of the outer tube (3) is sleeved with a buffer sleeve (4); The front and rear ends of the outer tube (3) and the buffer sleeve (4) are in contact with the support frame (2); The outer portion of the outer tube (3) is uniformly and circumferentially provided with pressure-resistant components.

2. The external pressure resistant MPP power cable protection tube according to claim 1, characterized in that: Both the front and rear sides of the outer tube (3) are coated with an adhesive layer, and the outer tube (3) is bonded to the support frame (2) via the adhesive layer.

3. The external pressure resistant MPP power cable protection tube according to claim 1, characterized in that: The pressure-resistant assembly comprises protruding rods (5) uniformly arranged on an outer tube (3), and the outer tube (3) and the protruding rods (5) are integrally formed, and the outer tube (3) and the protruding rods (5) have the same length.

4. The external pressure resistant MPP power cable protection tube according to claim 3, characterized in that: The convex rod (5) is provided with a groove (6) extending to the outer tube (3), and buffer springs (7) are evenly arranged in the groove (6) along the length direction. The buffer springs (7) are connected to the arc rod (8), and the arc rod (8) extends to the outside of the convex rod (5).

5. The external pressure resistant MPP power cable protection tube according to claim 4, characterized in that: The arc-shaped rod (8) is slidably connected to the groove (6).

6. The external pressure resistant MPP power cable protection tube according to claim 4, characterized in that: Long grooves are evenly formed inside the buffer sleeve (4), and the long grooves are in contact with both the convex rod (5) and the arc rod (8).

7. The external pressure resistant MPP power cable protection tube according to claim 1, characterized in that: The thickness of the outer tube (3) is one centimeter, and the thickness of the buffer sleeve (4) is three centimeters.

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