CPVC power cable protection pipe convenient to connect

Abstract

The invention provides a CPVC power cable protection pipe convenient to connect, which comprises two groups of protection pipes, one end of each protection pipe is provided with a first mounting ring, the top of each first mounting ring is provided with a second mounting ring, and the top of each second mounting ring is provided with a fixing assembly. And the fixing assembly comprises a fixing frame arranged at the top of the second mounting ring, an inserting rod is inserted into the inner wall of the fixing frame, and a limiting plate is fixedly connected to the outer side of the inserting rod. According to the CPVC power cable protection pipe convenient to connect, the problems that the installation and disassembly processes of two sets of protection pipes are tedious, the trouble degree of installation of the protection pipes by workers is improved, meanwhile, multiple sets of connected threaded holes need to be aligned, the installation efficiency of the protection pipes is reduced, and use is inconvenient are solved.

Description

Technical Field

[0001] The invention relates to the technical field of power cable protection tubes, and in particular to a CPVC power cable protection tube that is easy to connect. Background Art

[0002] CPVC power pipe is usually used as cable protection pipe. The product performance of CPVC power pipe is much better than traditional asbestos cable pipe and ordinary PVC pipe. It is an ideal substitute for traditional power cable sheath pipe. Although the existing CPVC power cable protection pipe can protect the cable, the structure of CPVC power cable protection pipe itself is simple and there is no good protection measure, which leads to poor protection effect on the cable when in use. In order to improve the protection effect of CPVC on the cable.

[0003] In the existing process of connecting and installing two groups of protective tubes, a connecting ring is usually required. The connecting rings are respectively connected and installed on the outer walls of the two groups of protective tubes and fixed by multiple groups of fixing bolts. The fixing bolts improve the stability of the connection between the two groups of protective tubes to a certain extent. However, during long-term use, if the cables are aged or damaged, the two groups of protective tubes need to be disassembled to inspect the internal cables. Due to the use of multiple groups of bolts for fixing, the installation and disassembly of the protective tubes is more troublesome for the workers. At the same time, the multiple groups of connected threaded holes need to be aligned, which reduces the installation efficiency of the protective tubes and is inconvenient to use. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a CPVC power cable protection tube that is easy to connect, comprising two groups of protection tubes, one end of the two groups of protection tubes is provided with a first mounting ring, the top of the first mounting ring is installed with a second mounting ring, the top of the second mounting ring is provided with a fixing component, one end of the two groups of protection tubes is respectively provided with a slot and an insert block, and holes are provided inside the slot and the insert block.

[0005] Preferably, the fixing assembly includes a fixing frame arranged on the top of the second mounting ring, an insertion rod is inserted into the inner wall of the fixing frame, a limiting plate is fixedly connected to the outer side of the insertion rod, a spring is fixedly connected to the top of the limiting plate, a pull plate is fixedly connected to the top of the insertion rod, and the bottom end of the insertion rod is inserted into the socket.

[0006] Preferably, one end of the two groups of protection tubes is respectively fixedly connected to a sealing tube and a fixing tube, and the sealing tube is inserted into the fixing tube.

[0007] Preferably, a pair of sealing rings are provided on the outer side of the sealing tube, and the outer sides of the sealing rings are in interference contact with the inner wall of the fixed tube.

[0008] Preferably, both sides of the first mounting ring and the second mounting ring are fixedly connected with mounting blocks, and fixing bolts are threaded inside the mounting blocks.

[0009] Preferably, a shrink tube is provided on the inner wall of the sealing tube, and a spiral support is installed on the inner wall of the shrink tube.

[0010] Preferably, an inner protective tube is arranged inside the protective tube, and the inner protective tube is sleeved on the outside of the cable.

[0011] Preferably, a plurality of fixing blocks are provided on the inner wall of the protection tube, and elastic plates are fixedly connected to both sides of the fixing blocks, and the bottom of the elastic plates is fixedly overlapped on the outer side of the inner protection tube.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The CPVC power cable protection tube that is easy to connect, when two groups of protection tubes are butt-jointed, the plug-in block is inserted into the slot, and the two groups of protection tubes are positioned, and the plug-in block is fixed by the cooperation of the fixing component and the socket, so that the two groups of protection tubes are connected and fixed, achieving the effect of convenient connection, easy installation and removal.

[0014] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures particularly pointed out in the written description and the drawings.

[0015] The technical solution of the present application is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of a CPVC power cable protection tube that is easy to connect provided by the present invention;

[0018] Figure 2 It is a structural schematic diagram of the first mounting ring and the second mounting ring shown in the present invention;

[0019] Figure 3 It is a structural schematic diagram of the fixing assembly shown in the present invention;

[0020] Figure 4It is a structural schematic diagram of the cold shrink tube shown in the present invention;

[0021] Figure 5 It is a schematic diagram of the installation of the fixing block and the elastic plate in the inner protective tube shown in the present invention; Figure 6 It is a structural schematic diagram of the fixing block and the elastic plate shown in the present invention.

[0022] Numbers in the figure: 1. Protective tube; 2. First mounting ring; 3. Second mounting ring; 4. Fixing assembly; 41. Fixing frame; 42. Insert rod; 43. Limiting plate; 44. Spring; 45. Pull plate; 5. Slot; 6. Insert block; 7. Socket; 8. Sealing tube; 9. Fixing tube; 10. Sealing ring; 11. Mounting block; 12. Fixing bolt; 13. Shrink tube; 14. Spiral support; 15. Inner protective tube; 16. Fixing block; 17. Elastic plate. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] See also Figure 1-Figure 5 A CPVC power cable protection tube that is easy to connect includes two groups of protection tubes 1. A first mounting ring 2 is arranged at one end of the two groups of protection tubes 1. A second mounting ring 3 is installed on the top of the first mounting ring 2. A fixing component 4 is arranged on the top of the second mounting ring 3. A slot 5 and an insert block 6 are respectively arranged at one end of the two groups of protection tubes 1. A socket 7 is opened inside the slot 5 and the insert block 6.

[0028] The first mounting ring 2 is sleeved on the bottom of the ends of the two groups of protective tubes 1. After the two groups of protective tubes 1 are butt-jointed, the second mounting ring 3 is mounted on the top of the first mounting ring 2. When the two groups of protective tubes 1 are butt-jointed, the plug block 6 is inserted into the slot 5 and positioned through the two groups of protective tubes 1. The plug block 6 is fixed by the fixing assembly 4 and the socket 7, thereby connecting and fixing the two groups of protective tubes 1, thereby achieving the effect of convenient connection, installation and disassembly.

[0029] In the specific implementation process, Figure 3 As shown, the fixing assembly 4 includes a fixing frame 41 arranged on the top of the second mounting ring 3, an insert rod 42 is inserted into the inner wall of the fixing frame 41, a limiting plate 43 is fixedly connected to the outer side of the insert rod 42, a spring 44 is fixedly connected to the top of the limiting plate 43, a pull plate 45 is fixedly connected to the top of the insert rod 42, and the bottom end of the insert rod 42 is inserted into the socket 7.

[0030] The insertion rod 42 is driven upward by the pull plate 45, and the insertion rod 42 slides in the fixing frame 41 and squeezes the spring 44 through the limit plate 43, so that the insertion rod 42 is separated from the insertion hole 7, thereby releasing the positioning of the insertion block 6, which is convenient for disassembly of the two groups of protection tubes 1. When installing, the insertion block 6 is reinserted into the slot 5, and the pull plate 45 is loosened, so that the insertion rod 42 returns to its original position under the elastic force of the spring 44 and is reinserted into the insertion hole 7, so that the insertion block 6 can be quickly positioned.

[0031] One end of the two sets of protection tubes 1 is fixedly connected with a sealing tube 8 and a fixing tube 9 respectively. The sealing tube 8 is inserted into the fixing tube 9. After the two sets of protection tubes 1 are connected, the sealing tube 8 is inserted into the fixing tube 9 to seal the connection between the two sets of protection tubes 1.

[0032] A pair of sealing rings 10 are provided on the outer side of the sealing tube 8 , and the outer sides of the sealing rings 10 are in interference contact with the inner wall of the fixed tube 9 , so that the sealing effect of the sealing tube 8 is improved by the sealing rings 10 .

[0033] Both sides of the first mounting ring 2 and the second mounting ring 3 are fixedly connected with mounting blocks 11, and fixing bolts 12 are threaded inside the mounting blocks 11. The fixing bolts 12 inside the mounting blocks 11 facilitate the connection and fixation of the first mounting ring 2 and the second mounting ring 3.

[0034] A cold shrink tube 13 is arranged on the inner wall of the sealing tube 8, and a spiral support member 14 is installed on the inner wall of the cold shrink tube 13. The material of the cold shrink tube 13 is set to EPDM rubber, which has certain elasticity and good low temperature resistance, resilience and physical and mechanical properties, and also has the functions of wear resistance and waterproof sealing. The cold shrink tube 13 is injection molded in the factory, and then expanded, and lined with a spiral support member 14 inside to support the cold shrink tube 13. After the two sets of protective tubes 1 are docked, the spiral support member 14 inside the cold shrink tube 13 is pulled out, thereby pressing it tightly on the cable, and the connection between the two sets of protective tubes 1 is sealed and protected to achieve a waterproof sealing effect.

[0035] An inner protective tube 15 is arranged inside the protective tube 1, and the inner protective tube 15 is sleeved on the outside of the cable.

[0036] A plurality of fixing blocks 16 are provided on the inner wall of the protection tube 1 , and elastic plates 17 are fixedly connected to both sides of the fixing blocks 16 , and the bottom of the elastic plates 17 is fixedly overlapped on the outer side of the inner protection tube 15 .

[0037] The fixing block 16 and the elastic plate 17 are made of rubber material. When the protective tube 1 is squeezed, the fixing block 16 is compressed and deformed in the direction close to the inner protective tube 15. Then, the elastic plate 17 is deformed in the direction away from each other under the pressure to dissipate the pressure. After the pressure is dissipated, the fixing block 16 and the inner protective tube 15 return to their initial positions, thereby enhancing the compressive resistance of the protective tube 1 and preventing the internal cables from being damaged when the protective tube 1 is squeezed by external force.

[0038] When in use, the first mounting ring 2 is sleeved on the bottom of the ends of the two groups of protective tubes 1. After the two groups of protective tubes 1 are butt-jointed, the second mounting ring 3 is mounted on the top of the first mounting ring 2. When the two groups of protective tubes 1 are butt-jointed, the plug block 6 is inserted into the slot 5, and the pull plate 45 is released, so that the plug rod 42 in the fixing frame 41 is inserted into the insertion hole 7 under the elastic force of the spring 44, so that the plug block 6 can be quickly positioned. After the two groups of protective tubes 1 are connected, the sealing tube 8 is inserted into the fixing tube 9 to seal the connection between the two groups of protective tubes 1. When the protective tubes 1 are squeezed, the fixing block 16 is compressed and deformed in the direction close to the inner protective tube 15 by force, and then the elastic plate 17 is deformed in the direction away from each other after being subjected to pressure to dissipate the pressure. After the pressure is dissipated, the fixing block 16 and the inner protective tube 15 return to their initial positions, thereby enhancing the pressure resistance of the protective tube 1, so that the protective tube 1 will not cause damage to the internal cable when it is squeezed by external force.

[0039] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0040] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0041] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A CPVC power cable protection tube that is easy to connect, characterized in that: The invention comprises two groups of protective tubes (1), one end of each of the two groups of protective tubes (1) is provided with a first mounting ring (2), a second mounting ring (3) is mounted on the top of the first mounting ring (2), a fixing component (4) is arranged on the top of the second mounting ring (3), and one end of each of the two groups of protective tubes (1) is provided with a slot (5) and an insert block (6), respectively, and a socket (7) is provided inside each of the slot (5) and the insert block (6).

2. The CPVC power cable protection tube that is easy to connect according to claim 1 is characterized in that: The fixing assembly (4) comprises a fixing frame (41) arranged on the top of the second mounting ring (3), an insert rod (42) is inserted into the inner wall of the fixing frame (41), the outer side of the insert rod (42) is fixedly connected to a limiting plate (43), the top of the limiting plate (43) is fixedly connected to a spring (44), the top of the insert rod (42) is fixedly connected to a pull plate (45), and the bottom end of the insert rod (42) is inserted into the insertion hole (7).

3. The CPVC power cable protection tube that is easy to connect according to claim 1 is characterized in that: One end of the two groups of protection tubes (1) is respectively fixedly connected to a sealing tube (8) and a fixing tube (9), and the sealing tube (8) is inserted into the fixing tube (9).

4. The CPVC power cable protection tube that is easy to connect according to claim 3 is characterized in that: A pair of sealing rings (10) are provided on the outside of the sealing tube (8), and the outside of the sealing rings (10) is in interference contact with the inner wall of the fixed tube (9).

5. The CPVC power cable protection tube that is easy to connect according to claim 1 is characterized in that: Both sides of the first mounting ring (2) and the second mounting ring (3) are fixedly connected with mounting blocks (11), and fixing bolts (12) are threaded inside the mounting blocks (11).

6. The CPVC power cable protection tube that is easy to connect according to claim 3 is characterized in that: The inner wall of the sealing tube (8) is provided with a cold shrink tube (13), and the inner wall of the cold shrink tube (13) is installed with a spiral support member (14).

7. The CPVC power cable protection tube that is easy to connect according to claim 1 is characterized in that: An inner protective tube (15) is arranged inside the protective tube (1), and the inner protective tube (15) is sleeved on the outside of the cable.

8. The CPVC power cable protection tube that is easy to connect according to claim 7 is characterized in that: The inner wall of the protection tube (1) is provided with a plurality of fixing blocks (16), both sides of the fixing blocks (16) are fixedly connected with elastic plates (17), and the bottom of the elastic plates (17) is fixedly overlapped with the outer side of the inner protection tube (15).

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