MPP cable protection pipe convenient to overlap

Abstract

The utility model relates to an MPP cable protection tube convenient for lap joint, which belongs to the technical field of cable protection tubes, and comprises a protection tube, the right side of the protection tube is provided with a positioning assembly, the outer surface of the protection tube is fixedly provided with two fixing blocks, the interiors of the two fixing blocks in the middle are connected with fixing rods in a sliding manner, and the fixing rods are connected with the right side of the protection tube in a sliding manner. A fixing plate is fixed to the left side of the fixing rod, an adjusting block is in threaded connection with the outer surface of the fixing rod, and adjusting plates are fixed to the upper side and the lower side of the adjusting block correspondingly. According to the MPP cable protection pipe convenient to overlap, when two protection pipes need to be overlapped, a positioning block on the protection pipe on the left side is moved into the protection pipe on the right side, so that the two protection pipes can be preliminarily positioned by a positioning assembly, and after a fixing rod and a fixing block are in sliding connection, an adjusting plate is rotated, so that the two protection pipes are conveniently overlapped. The two protection pipes can be fixed by rotating the fixing device, the whole structure is simple, and the lap joint efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection tubes, in particular to an MPP cable protection tube which is convenient for overlapping. Background Art

[0002] MPP pipe, also known as MPP power cable protection pipe, is divided into trench type and trenchless type. MPP trenchless pipe is also called MPP jacking pipe or dragging pipe. MPP pipe uses modified polypropylene as the main raw material. It has the characteristics of high temperature resistance and external pressure resistance. It is suitable for medium and low voltage transmission line cable drainage pipes below 10KV.

[0003] When using an MPP tube, it is usually necessary to overlap multiple cable protection tubes to extend the overall length. However, most cable protection tubes are generally fixed by gluing when overlapped, which is troublesome, time-consuming and labor-intensive to operate, seriously affecting the efficiency of overlapping the cable protection tubes and causing inconvenience. Therefore, an MPP cable protection tube that is easy to overlap is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an MPP cable protection tube that is easy to overlap, has the advantages of easy overlap, etc., and solves the problem that it is troublesome to operate by gluing and fixing.

[0005] To achieve the above object, the utility model provides the following technical solution: an MPP cable protection tube that is easy to overlap, comprising two protection tubes, a positioning assembly is provided on the right side of the protection tube, the positioning assembly is used to position the two protection tubes, and two fixing blocks are fixed on the outer surface of the protection tube;

[0006] The interiors of the two middle fixed blocks are slidably connected with fixed rods, the left sides of the fixed rods are fixed with fixed plates, the outer surfaces of the fixed rods are threadedly connected with adjustment blocks, and the upper and lower sides of the adjustment blocks are fixed with adjustment plates;

[0007] The positioning assembly includes a positioning block and two positioning rods, a positioning plate, a connecting block and a reset spring. The right side of the protective tube is fixed to the positioning block. The upper and lower sides of the protective tube are slidably connected to the positioning rod. The opposite sides of the two positioning rods are fixed to the positioning plate. The positioning plate is plugged into the positioning block. The opposite sides of the two positioning rods are fixed to the connecting block. The connecting block and the protective tube are fixed with a reset spring.

[0008] Furthermore, a threaded strip is fixed on the outer surface of the fixing rod, and a threaded hole matching the threaded strip is provided inside the adjusting block.

[0009] Furthermore, the sum of the length of the adjusting block and the length of the adjusting plate is smaller than the diameter of the fixing plate.

[0010] Furthermore, a fixing hole matched with the adjusting block is provided inside the fixing block, and an adjusting hole connected with the fixing hole and matched with the adjusting plate is provided inside the fixing block.

[0011] Furthermore, a sealing gasket is fixed to the right side of the positioning block, and a sealing hole matched with the sealing gasket is opened inside the protection tube.

[0012] Furthermore, an inclined surface is provided on the left side of the positioning plate, and the protective tube is a modified polypropylene MPP tube.

[0013] Furthermore, a stabilizing block is fixed inside the protection tube, and a stabilizing groove slidably connected to the stabilizing block is provided on the right side of the positioning plate.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The MPP cable protection tube which is easy to overlap can make the positioning assembly preliminarily position the two protection tubes by moving the positioning block on the left protection tube to the inside of the right protection tube when two protection tubes need to be overlapped. After the fixing rod is slidably connected with the fixing block, the two protection tubes can be fixed by rotating the adjustment plate. The overall structure is simple, and the efficiency of the overlap can be effectively improved, thereby making the overall structure more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a three-dimensional diagram of the connection structure of the fixed rod and the adjustment block of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the positioning component of the utility model.

[0019] In the figure: 1 protective tube, 2 positioning assembly, 201 positioning block, 202 positioning rod, 203 positioning plate, 204 connecting block, 205 return spring, 206 sponge pad, 3 fixing block, 4 fixing rod, 5 fixing plate, 6 adjusting block, 7 adjusting plate, 8 threaded strip, 9 fixing hole, 10 adjusting hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 2 In this embodiment, an MPP cable protection tube that is easy to overlap includes two protection tubes 1. The protection tube 1 is a modified polypropylene MPP tube. The MPP tube has excellent electrical insulation, high heat deformation temperature and low-temperature impact performance, making the whole more durable. A positioning component 2 is provided on the right side of the protection tube 1. The positioning component 2 is used to position the two protection tubes 1. Two fixing blocks 3 are fixed to the outer surface of the protection tube 1.

[0022] In addition, the two middle fixed blocks 3 are internally slidably connected with a fixed rod 4, a fixed plate 5 is fixed to the left side of the fixed rod 4, an adjusting block 6 is threadedly connected to the outer surface of the fixed rod 4, a threaded strip 8 is fixed to the outer surface of the fixed rod 4, and a threaded hole matching the threaded strip 8 is provided inside the adjusting block 6. Through the set threaded connection, when the adjusting block 6 rotates, it will move simultaneously due to the extrusion of the thread.

[0023] Furthermore, adjustment plates 7 are fixed on the upper and lower sides of the adjustment block 6. The adjustment plates 7 are used to prevent the fixing rod 4 from separating from the fixing block 3. The sum of the length of the adjustment block 6 and the length of the adjustment plate 7 is less than the diameter of the fixing plate 5. A fixing hole 9 adapted to the adjustment block 6 is provided inside the fixing block 3. An adjustment hole 10 connected to the fixing hole 9 and adapted to the adjustment plate 7 is provided inside the fixing block 3. The fixing holes 9 and the adjustment holes 10 are provided so that the adjustment block 6 and the adjustment plate 7 can pass through the fixing block 3.

[0024] In general, when fixing by the fixing rod 4, there is no need to rotate the adjusting block 6 to separate the adjusting block 6 from the fixing rod 4. Due to the setting of the fixing hole 9 and the adjusting hole 10, there is no need to disassemble the adjusting block 6 and the adjusting plate 7. After the adjusting block 6 and the adjusting plate 7 pass through the fixing block 3, the adjusting plate 7 can be rotated to stagger the adjusting plate 7 and the adjusting hole 10, thereby making it impossible for the fixing rod 4 to be separated from the fixing block 3, thereby completing the fixation.

[0025] See also Figure 3The positioning assembly 2 in this embodiment includes a positioning block 201 and two positioning rods 202, a positioning plate 203, a connecting block 204 and a reset spring 205. The right side of the protective tube 1 is fixed to the positioning block 201, and a sealing gasket is fixed to the right side of the positioning block 201. A sealing hole matched with the sealing gasket is opened inside the protective tube 1. The provided sealing gasket can effectively improve the sealing during overlap. The upper and lower sides of the protective tube 1 are slidably connected with the positioning rod 202, and the opposite side of the two positioning rods 202 is fixed to the positioning plate 203. A stabilizing block is fixed inside the protective tube 1, and a stabilizing groove slidably connected with the stabilizing block is opened on the right side of the positioning plate 203. The provided stabilizing block can effectively improve the sliding stability of the positioning plate 203.

[0026] In addition, an inclined surface is provided on the left side of the positioning plate 203. The inclined surface allows the positioning plate 203 to be squeezed by the positioning block 201, thereby eliminating the need to manually pull the positioning plate 203. The positioning plate 203 is plugged into the positioning block 201, and the opposite sides of the two positioning rods 202 are fixed to the connecting block 204. The connecting block 204 and the protective tube 1 are fixed with a reset spring 205. The reset spring 205 has a certain prestress, thereby ensuring the stability of the plug-in.

[0027] In general, the inclined surface allows the positioning block 201 to squeeze the positioning plate 203, which improves the convenience of overlapping. The right side of the positioning plate 203 is not provided with an inclined surface, thereby ensuring the stability of the plug-in and making the whole more practical.

[0028] The working principle of the above embodiment is:

[0029] Insert the positioning block 201 on the left side protection tube 1 into the left side of the right side protection tube 1. When the positioning block 201 moves toward the inside of the right side protection tube 1, the positioning block 201 will contact the inclined surface on the positioning plate 203, and then the positioning plate 203 can be squeezed to a certain extent, so that the positioning plate 203 pushes the positioning rod 202 and the connecting block 204 to overcome the prestress of the return spring 205 and move toward the outside of the protection tube 1, so that the positioning block 201 can be inserted into the inside of the right side protection tube 1. When the positioning block 201 moves to a position that matches the positioning plate 203, the prestress of the return spring 205 will reset the positioning plate 203, so that the positioning plate 203 is inserted into the positioning block 201. , and the positioning of the two protection tubes 1 is completed. At this time, the fixing rod 4 is taken out and the fixing rod 4 is passed through the fixing blocks 3 on the left and right protection tubes 1. Due to the fixed holes 9 and the adjustment holes 10, the adjustment blocks 6 and the adjustment plates 7 can pass through the fixing blocks 3 together. At this time, the adjustment plates 7 are pushed, so that the adjustment plates 7 and the adjustment blocks 6 can rotate on the outer surface of the fixing rods 4, and the adjustment blocks 6 will move due to the extrusion of the threads at the same time, so that the adjustment plates 7 and the adjustment holes 10 are staggered and cannot pass through the fixing blocks 3, and the adjustment plates 7 are fitted with the side walls of the fixing blocks 3, so that the two fixing blocks 3 can be more tightly connected, effectively ensuring the stability of the overlap, and the overall structure is simple, which effectively improves the overall practicality.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. An MPP cable protection tube that is easy to overlap, comprising two protection tubes (1), characterized in that: A positioning assembly (2) is provided on the right side of the protection tube (1), and the positioning assembly (2) is used to position the two protection tubes (1). Two fixing blocks (3) are fixed on the outer surface of the protection tube (1); The interiors of the two middle fixed blocks (3) are slidably connected with fixed rods (4), a fixed plate (5) is fixed on the left side of the fixed rod (4), an adjustment block (6) is threadedly connected to the outer surface of the fixed rod (4), and an adjustment plate (7) is fixed on both the upper and lower sides of the adjustment block (6); The positioning assembly (2) comprises a positioning block (201), two positioning rods (202), a positioning plate (203), a connecting block (204) and a return spring (205); the right side of the protection tube (1) is fixed to the positioning block (201); the upper and lower sides of the protection tube (1) are slidably connected to the positioning rod (202); the opposite sides of the two positioning rods (202) are fixed to the positioning plate (203); the positioning plate (203) is plugged into the positioning block (201); the opposite sides of the two positioning rods (202) are fixed to the connecting block (204); and the return spring (205) is fixed between the connecting block (204) and the protection tube (1).

2. The MPP cable protection tube that is easy to overlap according to claim 1 is characterized in that: A threaded strip (8) is fixed on the outer surface of the fixing rod (4), and a threaded hole matching the threaded strip (8) is provided inside the adjusting block (6).

3. The MPP cable protection tube that is easy to overlap according to claim 1 is characterized in that: The sum of the length of the adjustment block (6) and the length of the adjustment plate (7) is smaller than the diameter of the fixing plate (5).

4. The MPP cable protection tube that is easy to overlap according to claim 1 is characterized in that: The fixing block (3) is provided with a fixing hole (9) adapted to the adjusting block (6), and the fixing block (3) is provided with an adjusting hole (10) communicated with the fixing hole (9) and adapted to the adjusting plate (7).

5. The MPP cable protection tube that is easy to overlap according to claim 1 is characterized in that: A sealing gasket is fixed on the right side of the positioning block (201), and a sealing hole matching the sealing gasket is provided inside the protection tube (1).

6. The MPP cable protection tube that is easy to overlap according to claim 1 is characterized in that: An inclined surface is provided on the left side of the positioning plate (203), and the protection tube (1) is a modified polypropylene MPP tube.

7. The MPP cable protection tube that is easy to overlap according to claim 1 is characterized in that: A stabilizing block is fixed inside the protection tube (1), and a stabilizing groove slidably connected to the stabilizing block is provided on the right side of the positioning plate (203).

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