MPP cable tube convenient to weld and install

Abstract

The utility model relates to an MPP cable tube convenient to weld and install, which comprises a cable tube main body, and a welding assembly is arranged on the outer surface of the cable tube main body. The welding assembly comprises welding rings fixedly connected to the left side and the right side of the cable tube body, strip-shaped grooves are formed in the top and the bottom of the cable tube body, movable rods are fixedly connected to the inner sides of the strip-shaped grooves, sleeves are slidably connected to the outer surfaces of the movable rods, and hot melting rings are bonded to the outer sides of the sleeves. According to the MPP cable tube convenient to weld and install, by arranging the welding assembly and heating the welding ring and the sleeve through external heating equipment, all the hot melting columns, the hot melting pieces, the hot melting beads and the hot melting rings can be melted at the same time, so that the hot melting columns, the hot melting pieces, the hot melting beads and the hot melting rings are connected into a piece to be welded and installed, and therefore compared with an existing MPP cable tube, direct heating does not need to be conducted by aligning the outer surface, and the production efficiency is improved. The effect of avoiding overheating damage is achieved, the welding installation speed is high, and use is more facilitated.

Description

Technical Field

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

[0002] MPP cable pipe, full name MPP power cable protection pipe, is a pipe with modified polypropylene as the main raw material. It is mainly used to protect cables. MPP cable pipe is divided into two types: trenchless type and trenchless type. The trenchless type is also called MPP jacking pipe or dragging pipe. Fusion refers to the process of fusing two or more substances together through high temperature.

[0003] When connecting multiple MPP cable pipes, external heating equipment is generally used to weld and install the MPP cable pipes. Most of the existing MPP cable pipes need to directly heat the outer surface of the MPP cable pipe during welding and installation. Since the MPP cable pipe with modified polypropylene as the main raw material has the characteristics of high temperature resistance and external pressure resistance, the heating degree is difficult to control and the welding and installation speed is slow, which makes the cable core wire inside the MPP cable pipe prone to overheating and damage, which is not conducive to use. Therefore, an MPP cable pipe that is easy to weld and install is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an MPP cable tube that is easy to install by welding, which solves the problem that the heating degree is difficult to control and the welding installation speed is slow, which causes the cable core wire inside the MPP cable tube to easily overheat and be damaged, making it unsuitable for use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an MPP cable tube that is easy to install by welding, comprising a cable tube body, the outer surface of which is provided with a welding assembly;

[0006] The welding assembly includes a welding ring fixedly connected to the left and right sides of the cable tube body, a hot melt column and a hot melt sheet are bonded to the inner side of the welding ring, a groove is provided on the outer side of the welding ring, and hot melt beads are inlaid in the inner side of the groove, and strip grooves are provided on the top and bottom of the cable tube body, a movable rod is fixedly connected to the inner side of the strip groove, a sleeve is slidably connected to the outer surface of the movable rod, and a hot melt ring is bonded to the outer side of the sleeve.

[0007] Furthermore, a heat insulation layer for heat insulation is fixedly connected to the inner side of the cable tube body, and the material of the heat insulation layer is glass fiber rubber.

[0008] Furthermore, an annular damper for buffering and protection is fixedly connected to the inner side of the heat insulation layer, and a plurality of damping springs are equidistantly installed in an annular shape on the inner side of the annular damper.

[0009] Furthermore, a waterproof layer is fixedly connected to the inner side of the annular damper, and the outer surface and inner side of the waterproof layer are coated with acrylic waterproof paint.

[0010] Furthermore, the outer diameter of the welding ring is consistent with that of the cable tube body, and the materials of the hot melt column, hot melt sheet, hot melt bead and hot melt ring are all plastic.

[0011] Furthermore, the outer diameter of the sleeve is greater than the outer diameter of the cable tube body, and the cable tube body and the sleeve are both made of modified polypropylene.

[0012] Furthermore, an annular groove is provided on the outer surface of the sleeve for easy pushing, and the inner side of the annular groove has a smooth transition.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The MPP cable tube which is easy to install by welding is provided with a welding assembly. When in use, the staff first needs to align the end faces of the two cable tube bodies so that the hot melt columns, hot melt sheets and hot melt beads of the two are close to each other, and then push the sleeve outward to make the sleeve slide along the outer surface of the movable rod, so that the hot melt rings of the two are close to each other. At this time, the welding ring and the sleeve are heated by an external heating device, so that all the hot melt columns, hot melt sheets, hot melt beads and hot melt rings can be melted at the same time, so that they are connected to each other into one piece for welding installation. Compared with the existing MPP cable tube, there is no need to align the outer surface for direct heating, which achieves the effect of avoiding overheating damage, and the welding installation speed is faster, which is more convenient to use.

[0015] 2. The MPP cable pipe, which is easy to install by welding, can enhance the heat insulation, buffer protection and waterproof performance of the cable pipe body by arranging a heat insulation layer, an annular damper and a waterproof layer, thereby increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a side view of the main body of the cable tube of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the welding ring of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model after welding and installation.

[0020] In the figure: 1 cable tube body, 2 welding ring, 3 hot melt column, 4 hot melt sheet, 5 groove, 6 hot melt bead, 7 strip groove, 8 movable rod, 9 sleeve, 10 hot melt ring, 11 heat insulation layer, 12 annular damper, 13 damping spring, 14 waterproof layer, 15 annular groove. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 In this embodiment, an MPP cable tube that is easy to install by welding includes a cable tube body 1, and a welding component is provided on the outer surface of the cable tube body 1;

[0023] The welding assembly includes a welding ring 2 fixedly connected to the left and right sides of the cable tube body 1, a hot melt column 3 and a hot melt sheet 4 are bonded to the inner side of the welding ring 2, a groove 5 is provided on the outer side of the welding ring 2, and a hot melt bead 6 is inlaid in the groove 5, and a strip groove 7 is provided on the top and bottom of the cable tube body 1, and a movable rod 8 is fixedly connected to the inner side of the strip groove 7, and a sleeve 9 is slidably connected to the outer surface of the movable rod 8, and a hot melt ring 10 is bonded to the outer side of the sleeve 9. When in use, the staff first needs to align the end faces of the two cable tube bodies 1 so that the hot melt columns 3, hot melt sheets 4 and hot melt beads 6 of the two are close to each other, and then push the sleeve 9 outward so that the sleeve 9 slides along the outer surface of the movable rod 8, so that the hot melt rings 10 of the two are close to each other. At this time, the welding ring 2 and the sleeve 9 are heated by an external heating device, so that all the hot melt columns 3, hot melt sheets 4, hot melt beads 6 and hot melt rings 10 are melted at the same time, so that they are connected to each other as one piece for welding installation.

[0024] Furthermore, compared with the existing MPP cable pipe, there is no need to align the outer surface for direct heating, which achieves the effect of avoiding overheating damage, and the welding installation speed is faster, which is more convenient to use.

[0025] Among them, a heat insulation layer 11 for heat insulation is fixedly connected to the inner side of the cable tube body 1. The material of the heat insulation layer 11 is glass fiber rubber. The heat insulation layer 11 made of glass fiber rubber is woven from high-temperature and high-strength glass fiber, which is suitable for continuous high-temperature operation and has excellent heat-resistant insulation properties.

[0026] It should be noted that an annular damper 12 for buffering protection is fixedly connected to the inner side of the insulation layer 11, and a number of damping springs 13 are equidistantly installed in a ring shape on the inner side of the annular damper 12. By arranging the annular damper 12 and the damping springs 13, the external pressure can be buffered, thereby achieving the effect of protecting the internal cable core wire.

[0027] It should be understood that a waterproof layer 14 is fixedly connected to the inner side of the annular damper 12, and the outer surface and inner side of the waterproof layer 14 are coated with acrylic waterproof coating. The waterproof layer 14 coated with acrylic waterproof coating has a higher coating strength and better aging resistance and waterproof performance.

[0028] In addition, the outer diameter of the sleeve 9 is larger than the outer diameter of the cable tube body 1. The cable tube body 1 and the sleeve 9 are both made of modified polypropylene. The outer surface of the sleeve 9 is provided with an annular groove 15 for easy pushing. The inner side of the annular groove 15 has a smooth transition. By providing the annular groove 15 with a smooth transition on the inner side, it is convenient for the staff to push the sleeve 9, and at the same time, it can also avoid the situation of cutting hands by the edges.

[0029] The working principle of the above embodiment is:

[0030] When using the MPP cable tube that is easy to weld and install, the staff first needs to align the end faces of the two cable tube bodies 1 so that the hot melt columns 3, hot melt sheets 4 and hot melt beads 6 of the two are close to each other, and then push the sleeve 9 outward to make the sleeve 9 slide along the outer surface of the movable rod 8, so that the hot melt rings 10 of the two are close to each other. At this time, by heating the welding ring 2 and the sleeve 9 through an external heating device, all the hot melt columns 3, hot melt sheets 4, hot melt beads 6 and hot melt rings 10 can be melted at the same time, so that they are connected to each other for welding and installation. After the welding and installation are completed, they are naturally cooled for a period of time, and the two cable tube bodies 1 can be perfectly welded and installed.

[0031] 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.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An MPP cable tube that is easy to install by welding, comprising a cable tube body (1), characterized in that: The outer surface of the cable tube body (1) is provided with a welding component; The welding assembly comprises a welding ring (2) fixedly connected to the left and right sides of the cable tube body (1), the inner side of the welding ring (2) is bonded with a hot melt column (3) and a hot melt sheet (4), the outer side of the welding ring (2) is provided with a groove (5), the interior of the groove (5) is inlaid with a hot melt bead (6), the top and bottom of the cable tube body (1) are provided with a strip groove (7), the inner side of the strip groove (7) is fixedly connected with a movable rod (8), the outer surface of the movable rod (8) is slidably connected with a sleeve (9), and the outer side of the sleeve (9) is bonded with a hot melt ring (10).

2. The MPP cable tube that is easy to install by welding according to claim 1 is characterized in that: A heat insulation layer (11) for heat insulation is fixedly connected to the inner side of the cable tube body (1), and the heat insulation layer (11) is made of glass fiber rubber.

3. The MPP cable tube that is easy to install by welding according to claim 2 is characterized in that: An annular damper (12) for buffering protection is fixedly connected to the inner side of the heat insulation layer (11), and a plurality of damping springs (13) are equidistantly installed in an annular shape on the inner side of the annular damper (12).

4. The MPP cable tube that is easy to install by welding according to claim 3 is characterized in that: A waterproof layer (14) is fixedly connected to the inner side of the annular damper (12), and the outer surface and inner side of the waterproof layer (14) are coated with acrylic waterproof paint.

5. The MPP cable tube that is easy to install by welding according to claim 1 is characterized in that: The outer diameter of the welding ring (2) is consistent with that of the cable tube body (1); the hot melt column (3), hot melt sheet (4), hot melt bead (6) and hot melt ring (10) are all made of plastic.

6. The MPP cable tube that is easy to install by welding according to claim 1 is characterized in that: The outer diameter of the sleeve (9) is greater than the outer diameter of the cable tube body (1), and the cable tube body (1) and the sleeve (9) are both made of modified polypropylene.

7. The MPP cable tube that is easy to install by welding according to claim 1 is characterized in that: The outer surface of the sleeve (9) is provided with an annular groove (15) for easy pushing, and the inner side of the annular groove (15) has a smooth transition.

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