High-strength CPVC (chlorinated polyvinyl chloride) cable protection pipe

Abstract

The utility model relates to a CPVC cable protection tube with high strength, comprising an inner layer protection tube tensile ring and an outer layer protection tube tensile ring, the inner part of the outer layer protection tube tensile ring is provided with a compression resistant mechanism, the compression resistant mechanism comprises a buffer cavity tensile ring arranged between the inner layer protection tube tensile ring and the outer layer protection tube tensile ring, and the buffer cavity tensile ring is provided with a buffer cavity. A supporting steel tensile ring is fixedly installed between the inner top wall and the inner bottom wall of the buffering cavity tensile ring, and a fixing rod tensile ring with one end penetrating and extending into the supporting steel tensile ring is fixedly installed at the top of the outer-layer protection pipe tensile ring. According to the CPVC cable protection pipe with high strength, through the arrangement of the compression resistance mechanism, the purpose of enhancing the compression resistance of the protection pipe is achieved, then the protection pipe can be prevented from being damaged under the condition of large pressure, a cable can be better protected, and the practicability and safety of the CPVC cable protection pipe with high strength are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-strength CPVC cable protection tubes, in particular to a high-strength CPVC cable protection tube. Background Art

[0002] CPVC power cable protection tube is also called CPVC power tube, which is usually used for cable protection. This product has the characteristics of good flexibility, high temperature resistance, corrosion resistance, flame retardancy, good insulation performance, pollution-free, not easy to age, light weight, and convenient construction. It is widely used in urban power grid construction and transformation, urban municipal transformation projects, civil aviation airport engineering construction, engineering park, community engineering construction, transportation, road and bridge engineering construction, urban street lamp cable laying, and plays a guiding and protective role.

[0003] According to Chinese patent publication number CN210838797U, a CPVC power cable protection tube with high strength and pressure resistance is proposed. The beneficial effect of the utility model is: when the CPVC power cable protection tube with high strength and pressure resistance is used, the equipment is pre-buried as a whole to the designated laying position, and the cable equipment is effectively laid through the inner protection tube, so that the equipment can effectively protect the internal cable equipment, so that the internal cable equipment can function normally. Once the above device is subjected to greater pressure during use, it is easy to be damaged, and the damaged CPVC tube will directly crack, which will cause the cable to be directly exposed to the outside, affecting its normal working effect and reducing the practicability of the cable protection tube. Therefore, we propose a high-strength CPVC cable protection tube to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a high-strength CPVC cable protection tube, which has the advantage of improving the compressive strength of the CPVC tube and solving the problem that once it is subjected to greater pressure during use, the CPVC tube is easily damaged and the damaged CPVC tube will directly crack, which will cause the cable to be directly exposed to the outside, affecting its normal working effect and reducing the practicability of the cable protection tube.

[0005] To achieve the above object, the utility model provides the following technical solutions: a high-strength CPVC cable protection tube, comprising an inner layer protection tube and an outer layer protection tube, wherein a pressure-resistant mechanism is arranged inside the outer layer protection tube;

[0006] The pressure-resistant mechanism includes a buffer cavity opened between the inner protective tube and the outer protective tube, support steel is fixedly installed between the inner top wall and the inner bottom wall of the buffer cavity, a fixing rod with one end penetrating through and extending into the interior of the support steel is fixedly installed on the top of the outer protective tube, a sealing sleeve is fixedly installed on the outer surface of the fixing rod, a pressure-resistant ring is fixedly installed on the bottom of the inner protective tube, and a tension-resistant ring for support is arranged inside the pressure-resistant ring.

[0007] Furthermore, an inner cavity is provided inside the inner protective tube, a connector is fixedly installed on the left side of the inner protective tube, and a thread for connection is provided on the outer surface of the connector.

[0008] Furthermore, a first annular inner sliding ring is arranged on the right side of the inner layer protection tube, and an annular inner sliding groove is opened on the left side of the inner layer protection tube.

[0009] Furthermore, a connection groove is provided on the top of the outer protective tube, and the inner wall of the connection groove is fixedly connected to the outer surface of the sealing sleeve.

[0010] Furthermore, the support steel is in an I-shape when viewed from the front, and a plurality of the support steels are provided and are evenly distributed inside the buffer cavity.

[0011] Furthermore, a mounting groove is provided inside the supporting steel, and the size of the mounting groove is matched with the size of the fixing rod.

[0012] Furthermore, a second annular inner slip ring is provided on the right side of the connector, and the size of the second annular inner slip ring is adapted to the size of the annular inner sliding groove.

[0013] Furthermore, the number of the anti-tension rings is multiple, and the multiple anti-tension rings are evenly distributed inside the pressure-resistant ring.

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

[0015] The high-strength CPVC cable protection tube is provided with a pressure-resistant mechanism, thereby achieving the purpose of enhancing the pressure resistance of the protection tube, thereby preventing the protection tube from being damaged under high pressure conditions, thereby better protecting the cable and improving the practicality and safety of the high-strength CPVC cable protection tube. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 The utility model structure Figure 1 Side view of

[0018] Figure 3The utility model structure Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 This is a three-dimensional diagram of the connection between the structural support steel and the fixing rod of the utility model.

[0020] In the figure: 1. Inner protective tube; 2. Outer protective tube; 3. Inner cavity; 4. Connector; 5. Thread; 61. Buffer cavity; 62. Support steel; 63. Fixing rod; 64. Sealing sleeve; 65. Pressure-resistant ring; 66. Anti-tension ring. 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, a high-strength CPVC cable protection tube includes an inner protective tube 1 and an outer protective tube 2. The outer protective tube 2 is provided with a pressure-resistant mechanism, the inner protective tube 1 is provided with an inner cavity 3, and a connector 4 is fixedly installed on the left side of the inner protective tube 1. The outer surface of the connector 4 is provided with a thread 5 for connection.

[0023] Among them, a first annular inner sliding ring is arranged on the right side of the inner protective tube 1, and an annular inner sliding groove is opened on the left side of the inner protective tube 1, which plays a role in connecting the two inner protective tubes 1 and makes the connection more convenient.

[0024] It should be noted that the connector 4 and the thread 5 are provided to enable the two protective tubes to be connected, so that when the cable is damaged, it is convenient to repair and replace a section of the cable, which brings great convenience to the user and improves the practicality of the high-strength CPVC cable protective tube.

[0025] Among them, a second annular inner slip ring is arranged on the right side of the connecting head 4, and the size of the second annular inner slip ring is adapted to the size of the annular inner slide groove, thereby achieving the purpose of facilitating the connection between the connecting head 4 and the inner protective tube 1, thereby bringing great convenience to the user, and thus facilitating the disassembly and assembly between the connecting head 4 and the inner protective tube 1.

[0026] Specifically, by providing a pressure-resistant mechanism, the outer protective tube 2 can be made pressure-resistant. The protective tube is provided with two layers, which saves the raw materials required for production while ensuring that the original structural strength remains basically unchanged, thereby saving production costs. By providing a first annular inner slip ring and annular inner slide groove for coordinated use, it is convenient to connect the various pipelines, thereby facilitating the inspection and maintenance of the cable.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the pressure-resistant mechanism includes a buffer cavity 61 opened between the inner protective tube 1 and the outer protective tube 2, a support steel 62 is fixedly installed between the inner top wall and the inner bottom wall of the buffer cavity 61, a fixed rod 63 with one end passing through and extending to the inside of the support steel 62 is fixedly installed on the top of the outer protective tube 2, a sealing sleeve 64 is fixedly installed on the outer surface of the fixed rod 63, a pressure-resistant ring 65 is fixedly installed on the bottom of the inner protective tube 1, and a tension-resistant ring 66 for support is arranged inside the pressure-resistant ring 65.

[0028] Among them, a connecting groove is opened on the top of the outer protective tube 2, and the inner wall of the connecting groove is fixedly connected to the outer surface of the sealing sleeve 64, which prevents gas from leaking out between the connecting groove and the inner cavity 3, thereby making the pipeline more sealed.

[0029] Among them, the support steel 62 is I-shaped when viewed from the front. There are multiple support steels 62 and they are evenly distributed inside the buffer cavity 61. The purpose is to support the pipeline. Since the I-shaped steel has good stability, it can be set inside the pipeline to resist pressure, thereby preventing damage to the pipeline due to excessive pressure.

[0030] It should be added that when the support steel 62 is in use, the compressive resistance between the inner protective tube 1 and the outer protective tube 2 can be enhanced, thereby facilitating the protection of the protective tube and preventing the protective tube from rupturing, thereby avoiding exposure of the cable to the outside world and protecting the cable at the same time, thereby improving the safety and practicality of the protective tube.

[0031] Among them, an installation groove is opened inside the support steel 62, and the size of the installation groove is adapted to the size of the fixing rod 63. Its purpose is to enhance the compressive resistance of the support steel 62, thereby making the pipeline more resistant to pressure, thereby facilitating the protection of the cable and extending the service life of the cable.

[0032] There are multiple tensile rings 66 , which are evenly distributed inside the pressure-resistant ring 65 . Their function is to enhance the tensile strength of the pipeline so that the pipeline will not break under the action of tension, thereby improving the stability and safety of the pipeline.

[0033] Specifically, by providing a buffer chamber 61, a support steel 62, a fixing rod 63, a sealing sleeve 64, a pressure-resistant ring 65 and a tension-resistant ring 66, the tensile and compressive resistance of the pipeline can be improved, thereby extending the service life of the pipeline, and the cable will not be exposed to the outside world, thereby improving the service life of the cable, and further providing better protection for the cable, thereby improving the practicality and safety of the high-strength CPVC cable protection tube.

[0034] The working principle of the above embodiment is:

[0035] When it is necessary to use the high-strength CPVC cable protection tube, first, the annular inner groove of the inner protective tube 1 needs to be tightly combined with the second annular inner slip ring of the connector 4, and then the pipe is put on the cable that needs to be protected. When the protective tube is under pressure, the inside of the buffer cavity 61 needs to be ventilated, so that the gas inside the protective tube can withstand the external pressure. At the same time, the support steel 62 can also withstand the pressure. At the same time, the pressure-resistant ring 65 can also protect the cable inside the protective tube, thereby preventing excessive pressure from causing damage to the cable.

[0036] 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.

[0037] 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. A high-strength CPVC cable protection tube, comprising an inner layer protection tube (1) and an outer layer protection tube (2), characterized in that: The outer protective tube (2) is provided with a pressure-resistant mechanism inside; The pressure-resistant mechanism comprises a buffer cavity (61) opened between an inner protective tube (1) and an outer protective tube (2); a support steel (62) is fixedly installed between the inner top wall and the inner bottom wall of the buffer cavity (61); a fixing rod (63) having one end penetrating through and extending into the interior of the support steel (62) is fixedly installed on the top of the outer protective tube (2); a sealing sleeve (64) is fixedly installed on the outer surface of the fixing rod (63); a pressure-resistant ring (65) is fixedly installed on the bottom of the inner protective tube (1); and a tension-resistant ring (66) for support is arranged inside the pressure-resistant ring (65).

2. The high-strength CPVC cable protection tube according to claim 1, characterized in that: An inner cavity (3) is provided inside the inner protective tube (1), a connector (4) is fixedly mounted on the left side of the inner protective tube (1), and a thread (5) for connection is provided on the outer surface of the connector (4).

3. The high-strength CPVC cable protection tube according to claim 2, characterized in that: A first annular inner sliding ring is arranged on the right side of the inner layer protection tube (1), and an annular inner sliding groove is opened on the left side of the inner layer protection tube (1).

4. The high-strength CPVC cable protection tube according to claim 1, characterized in that: A connection groove is provided on the top of the outer protective tube (2), and the inner wall of the connection groove is fixedly connected to the outer surface of the sealing sleeve (64).

5. The high-strength CPVC cable protection tube according to claim 1, characterized in that: The support steel (62) is in an I-shape when viewed from the front, and a plurality of the support steels (62) are provided and are evenly distributed inside the buffer cavity (61).

6. The high-strength CPVC cable protection tube according to claim 2, characterized in that: The support steel (62) is provided with a mounting groove inside, and the size of the mounting groove is matched with the size of the fixing rod (63).

7. The high-strength CPVC cable protection tube according to claim 3, characterized in that: A second annular inner sliding ring is arranged on the right side of the connector (4), and the size of the second annular inner sliding ring is adapted to the size of the annular inner sliding groove.

8. The high-strength CPVC cable protection tube according to claim 1, characterized in that: The number of the anti-tension rings (66) is plural, and the plurality of anti-tension rings (66) are evenly distributed inside the pressure-resistant ring (65).

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