MPP power cable protection pipe provided with mounting mechanism

Abstract

The invention discloses an MPP power cable protection pipe provided with a mounting mechanism, which comprises a main body assembly including a protection pipe, a main joint and an auxiliary joint, the main joint and the auxiliary joint are both movably connected to the outer side of the protection pipe, and a mounting assembly located in the main joint and including a separation blade, a fixing piece, a resistance piece, a dismounting piece and a limiting piece, the blocking piece is movably arranged in the protection pipe, and the fixing piece is arranged in the main connector. The device has the beneficial effects that by arranging the mounting assembly, the device facilitates disassembly of the protection pipe, further facilitates maintenance and replacement of a cable, reduces the use cost and the fixing difficulty of the protection pipe, rigidly unifies the mounting standard, improves the sealing performance of the device, prevents invasion of water and pollutants, and improves the service life of the device. Therefore, moisture and other external pollutants are prevented from entering the cable, an insulating layer of the cable is protected from being damaged, and risks of short circuit and electrical faults are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cable protection, in particular to an MPP power cable protection tube provided with a mounting mechanism. Background Art

[0002] MPP power cable protection pipe is a rigid polyvinyl chloride pipe made of modified polypropylene (MPP) as the main raw material. This pipe has good insulation properties, high temperature resistance, strong pressure resistance, light weight, and easy construction. Therefore, it is widely used in the protection of power cables; the inner and outer walls of the MPP power cable protection pipe are smooth, with low friction, long service life, strong corrosion resistance, and is not affected by corrosive soil; it is divided into two types: trench type and trenchless type. The trenchless type is also called MPP jacking pipe or dragging pipe, which is more suitable for current environmental protection requirements. Pipes can be laid without large-scale excavation and road damage. It is particularly suitable for special areas such as historical sites, downtown areas, crops and farmland protection areas.

[0003] The existing excavation type MPP power cable protection pipe is mainly fixed by hot-melt connection method. Although this method has a stable connection, it has the limitation of one-time fixation, which makes the joint difficult to disassemble. This inconvenience is particularly prominent when the cable is repaired or replaced. Once the joint is damaged, it is often necessary to cut off the entire joint part, which not only increases the maintenance cost and time, but also causes uneven joint quality due to differences in professional skills, sense of responsibility and operating experience of welding operators. Different operators have different welding standards, which can easily cause excessive axial deviation of the joint, resulting in non-overlapping of the welding surface, thereby affecting the sealing and strength of the joint. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above-mentioned problems and / or the existing problems in the existing MPP power cable protection tube provided with an installation mechanism, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is that the existing excavation type MPP power cable protection pipe is mainly fixed by the hot melt connection method. Although this method has a stable connection, it has the limitation of one-time fixation, which makes the joint difficult to disassemble. This inconvenience is particularly prominent when the cable is repaired or replaced. Once the joint is damaged, it is often necessary to cut off the entire joint part, which not only increases the maintenance cost and time, but also due to the differences in professional skills, sense of responsibility and operating experience of the welding operators, leads to uneven joint quality. Different operators have different welding standards, which can easily cause excessive axial deviation of the joint, resulting in non-overlapping of the welding surface, thereby affecting the sealing and strength of the joint.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an MPP power cable protection tube provided with an installation mechanism, comprising a main body assembly, including a protection tube, a main joint and a secondary joint, wherein the main joint and the secondary joint are both movably connected to the outside of the protection tube;

[0008] The installation assembly is located inside the main joint, and includes a baffle, a fixing member, a resistance member, a disassembly member and a limit member, wherein the baffle moves inside the protective tube, the fixing member is arranged inside the main joint, the resistance member is located inside the main joint, the disassembly member is located outside the main joint, and the limit member is arranged outside the main joint.

[0009] As a preferred solution of the MPP power cable protection tube with an installation mechanism described in the present invention, the fixing member includes a clamping block and a first spring, the clamping block moves in the main joint, an arc groove is provided in the main joint, the clamping block moves in the arc groove, and the two ends of the first spring are respectively fixed to the inner wall of the arc groove and the clamping block.

[0010] As a preferred solution of the MPP power cable protection tube with an installation mechanism described in the present invention, the fixing part also includes a clamping rod, which is fixed to the end of the auxiliary joint, and the clamping rod is movable in the main joint, and a long groove is opened in the main joint, and the clamping rod is movable in the long groove.

[0011] As a preferred solution of the MPP power cable protection tube provided with an installation mechanism according to the present invention, the resistance member comprises a round rod, and the round rod is fixed to the end of the auxiliary joint.

[0012] As a preferred solution of the MPP power cable protection tube with an installation mechanism described in the present invention, the resistance member also includes a resistance plate and a second spring, the resistance plate moves in the main joint, a circular groove is opened in the main joint, the resistance plate moves in the circular groove, and the two ends of the second spring c are respectively fixed to the inner wall of the circular groove and the resistance plate.

[0013] As a preferred solution of the MPP power cable protection tube with an installation mechanism described in the present invention, the disassembly part includes a connecting block, which slides on the outside of the main joint, and a limiting groove is provided on the outside of the main joint, and the connecting block slides in the limiting groove.

[0014] As a preferred solution of the MPP power cable protection tube with an installation mechanism described in the present invention, the disassembly part also includes a handle, which is rotatably connected to the outside of the main joint, and the handle b is fixed to the end of the connecting block.

[0015] As a preferred solution of the power cable protection tube with an installation mechanism described in the present invention, the limiting member includes a fixing sleeve, a limiting rod and a third spring, the fixing sleeve is fixed to the outside of the main joint, the limiting rod is movable in the fixing sleeve, and the two ends of the third spring are respectively fixed to the fixing sleeve and the limiting rod.

[0016] As a preferred solution of the MPP power cable protection tube with an installation mechanism described in the present invention, the limiting member also includes a connecting rod and a handle, one end of the connecting rod is fixed to the end of the limiting rod, and the other end of the connecting rod and the handle are fixed to the outside of the fixing sleeve.

[0017] As a preferred solution of the MPP power cable protection tube provided with an installation mechanism as described in the present invention, wherein: the installation assembly also includes a sealing gasket, and the sealing gasket is fixed to the end of the main joint.

[0018] The beneficial effects of the present invention are as follows: by setting up the installation component, the device facilitates the disassembly of the protective tube, thereby facilitating the repair and replacement of the cable, reducing the use cost and the difficulty of fixing the protective tube, and rigidly unifying the installation standards, improving the sealing of the device, preventing the intrusion of moisture and pollutants, thereby preventing moisture and other external pollutants from entering the interior of the cable, protecting the insulation layer of the cable from damage, and reducing the risk of short circuits and electrical failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative labor. Among them:

[0020] Figure 1 This is a scene diagram of an MPP power cable protection pipe equipped with an installation mechanism.

[0021] Figure 2The cross-sectional structure diagram of the MPP power cable protection tube is provided with an installation mechanism.

[0022] Figure 3 MPP power cable protection pipe with installation mechanism Figure 2 Enlarged structural diagram at point A in the middle.

[0023] Figure 4 This is a cross-sectional structural diagram of the main joint of the MPP power cable protection pipe equipped with an installation mechanism.

[0024] Figure 5 This is an exploded structural diagram of the main joint and auxiliary joint of the MPP power cable protection pipe with an installation mechanism.

[0025] Figure 6 This is a diagram of the handle and second spring structure of the MPP power cable protection tube with an installation mechanism.

[0026] Figure 7 This is a structural diagram of the handle and fixing sleeve of the MPP power cable protection tube with an installation mechanism.

[0027] Figure 8 The cross-sectional structure diagram of the turning handle and fixing sleeve of the MPP power cable protection tube provided with an installation mechanism. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] Secondly, 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.

[0031] Example 1

[0032] Reference Figures 1 to 8 , which is the first embodiment of the present invention, provides an MPP power cable protection tube provided with an installation mechanism. The MPP power cable protection tube provided with an installation mechanism includes a main body component 100 and an installation component 200, which cooperate with each other to reduce the difficulty of installing the device.

[0033] The main component 100 includes a protection tube 101 , a main joint 102 and a secondary joint 103 . The main joint 102 and the secondary joint 103 are both movably connected to the outside of the protection tube 101 .

[0034] By connecting and fixing the main connector 102 and the auxiliary connector 103 , the two protection tubes 101 are connected and fixed, thereby facilitating the subsequent maintenance and care of the cable.

[0035] The installation component 200 is located inside the main joint 102, and includes a baffle 201, a fixing member 202, a resistance member 203, a disassembly member 204 and a limit member 205. The baffle 201 is movable in the protective tube 101, the fixing member 202 is arranged in the main joint 102, the resistance member 203 is located in the main joint 102, the disassembly member 204 is located outside the main joint 102, and the limit member 205 is arranged outside the main joint 102.

[0036] There are two baffles 201, and six rectangular blocks are arranged at the end of the baffle 201. Six rectangular grooves are opened at the end of the main joint 102. The six rectangular blocks of the baffle 201 move in the six rectangular grooves of the main joint 102. By setting the baffle 201, the main joint 102 and the auxiliary joint 103 will not slide on the outside of the protective tube 101 when being fixed. By setting the fixing member 202, the main joint 102 and the auxiliary joint 103 are clamped and fixed. By setting the resistance member 203, the fixing strength of the main joint 102 and the auxiliary joint 103 is improved. By setting the disassembly member 204, the disassembly of the main joint 102 and the auxiliary joint 103 is facilitated. By setting the limit member 205, the accidental triggering of the disassembly member 204 is avoided, and the stability of the fixing of the main joint 102 and the auxiliary joint 103 is improved.

[0037] Example 2

[0038] Reference Figure 3 , Figure 5 and Figure 6 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0039] Specifically, the fixing member 202 includes a block 202a and a first spring 202b. The block 202a moves in the main joint 102. An arc groove V is provided in the main joint 102. The block 202a moves in the arc groove V. Both ends of the first spring 202b are respectively fixed to the inner wall of the arc groove V and the block 202a.

[0040] Specifically, the fixing member 202 further includes a clamping rod 202c, which is fixed to the end of the auxiliary joint 103 and moves in the main joint 102. A long slot W is provided in the main joint 102, and the clamping rod 202c moves in the long slot W.

[0041] There are two clamping blocks 202a, two first springs 202b and two clamping rods 202c. Both the clamping blocks 202a and the first springs 202b are arc-shaped. The end of the clamping block 202a is set as an inclined surface. One side of the clamping rod 202c is provided with a clamping groove. The clamping block 202a is clamped and fixed with the clamping groove on one side of the clamping rod 202c, so that the main joint 102 and the auxiliary joint 103 are fixed. The main joint 102 and the auxiliary joint 103 are respectively sleeved on the outside of the two protective tubes 101, and the two baffles 201 are pushed into the protective tubes 101. The rectangular block at the end of the baffle 201 slides into the rectangular groove of the main joint 102, and the end of the auxiliary joint 103 is pushed toward the main joint 102. The clamping rod 202c at the end of the auxiliary joint 103 is pushed toward The first spring 202b is deformed by the squeezing of the block 202a, and the reaction force of the first spring 202b pushes the block 202a to squeeze one side of the connecting rod 202c until the connecting groove on one side of the connecting rod 202c moves to a position flush with the block 202a. The reaction force of the first spring 202b pushes the block 202a to move into the connecting groove on one side of the connecting rod 202c, so that the block 202a in the main joint 102 is engaged with the connecting rod 202c at the end of the auxiliary joint 103, thereby completing the fixation of the main joint 102 and the auxiliary joint 103.

[0042] Specifically, the resistance member 203 includes a round rod 203 a , and the round rod 203 a is fixed to the end of the auxiliary joint 103 .

[0043] Specifically, the resistance member 203 also includes a resistance plate 203b and a second spring 203c. The resistance plate 203b moves in the main joint 102. A circular groove X is provided in the main joint 102. The resistance plate 203b moves in the circular groove X. The two ends of the second spring 203c are respectively fixed to the inner wall of the circular groove X and the resistance plate 203b.

[0044] There are two round rods 203a, resistance plates 203b and second springs 203c. The resistance plate 203b and the second spring 203c in the main joint 102 push the round rod 203a at the end of the auxiliary joint 103, thereby improving the strength of the clamping and fixing of the clamping block 202a and the clamping rod 202c, and facilitating the disassembly of the main joint 102 and the auxiliary joint 103. The end of the auxiliary joint 103 is pushed toward the main joint 102, and the auxiliary joint 103 drives the round rod 203a to move into the circular groove X. The round rod 203a drives the resistance plate 203b to move into the circular groove X. The second spring 203c is squeezed by the resistance plate 203b and deformed until the main joint 102 and the auxiliary joint 103 are fixed. The reaction force of the second spring 203c pushes the round rod 203a out of the circular groove X through the resistance plate 203b, thereby making the clamping of the clamping block 202a and the clamping rod 202c more stable.

[0045] Example 3

[0046] Reference Figure 4 , Figure 7 and Figure 8 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0047] Specifically, the disassembly member 204 includes a connection block 204a, which slides on the outside of the main joint 102. A limit groove Z is provided on the outside of the main joint 102, and the connection block 204a slides in the limit groove Z.

[0048] Specifically, the disassembly component 204 further includes a handle 204b, which is rotatably connected to the outside of the main joint 102, and the handle 204b is fixed to the end of the connection block 204a.

[0049] There are two connecting blocks 204a, which are rectangular and the turning handle 204b is annular. By arranging the turning handle 204b on the outside of the main joint 102, the sealing performance of the main joint 102 and the auxiliary joint 103 is improved. By arranging the turning handle 204b, the disassembly of the vertical pipe joint is facilitated. During disassembly, the turning handle 204b is rotated, and the turning handle 204b drives the connecting block 204a to slide in the limiting groove Z, and the connecting block 204a drives the clamping block 202a to slide in the arc groove V. The first spring 202b is squeezed by the clamping block 202a and deformed until the clamping block 202a is separated from the clamping groove on one side of the clamping rod 202c. The reaction force of the second spring 203c pushes the round rod 203a outward from the circular groove X through the resistance plate 203b, and the round rod 203a drives the auxiliary joint 103 away from the main joint 102, thereby completing the disassembly of the main joint 102 and the auxiliary joint 103.

[0050] Specifically, the limiting member 205 includes a fixing sleeve 205a, a limiting rod 205b and a third spring 205c. The fixing sleeve 205a is fixed to the outside of the main joint 102, the limiting rod 205b moves in the fixing sleeve 205a, and two ends of the third spring 205c are respectively fixed to the fixing sleeve 205a and the limiting rod 205b.

[0051] One end of the limiting rod 205b is in the fixing sleeve 205a, and the other end is in the turning handle 204b. The limiting rod 205b clamps and limits the turning handle 204b, so that the turning handle 204b will not rotate accidentally, thereby improving the stability of the fixing of the main joint 102 and the auxiliary joint 103.

[0052] Specifically, the limiting member 205 further includes a connecting rod 205d and a handle 205e. One end of the connecting rod 205d is fixed to the end of the limiting rod 205b, and the other end of the connecting rod 205d and the handle 205e are fixed to the outside of the fixing sleeve 205a.

[0053] By providing the connecting rod 205d and the handle 205e, it is convenient to release the control of the limit rod 205b on the turning handle 204b. By pulling the handle 205e, the handle 205e drives the connecting rod 205d to move, and the connecting rod 205d drives the limit rod 205b to separate from the turning handle 204b, and then the turning handle 204b can be rotated to disassemble the main joint 102 and the auxiliary joint 103.

[0054] Specifically, the installation assembly 200 further includes a sealing gasket 206 , which is fixed to the end of the main joint 102 .

[0055] There are two sealing gaskets 206, which are respectively fixed at the ends of the main joint 102 and the auxiliary joint 103. When the end of the auxiliary joint 103 is pushed toward the main joint 102, the sealing gasket 206 is squeezed and deformed. By setting the sealing gasket 206 and squeezing the sealing gasket 206 by the main joint 102 and the auxiliary joint 103, the sealing performance of the device is improved.

[0056] When in use and during installation, firstly, the main joint 102 and the auxiliary joint 103 are respectively sleeved on the outside of the two protection tubes 101, and the two baffles 201 are pushed into the protection tubes 101, the rectangular block at the end of the baffle 201 slides into the rectangular groove of the main joint 102, and the end of the auxiliary joint 103 is pushed toward the main joint 102, the auxiliary joint 103 drives the round rod 203a to move into the circular groove X, the round rod 203a drives the resistance plate 203b to move into the circular groove X, and the second spring 203c is squeezed by the resistance plate 203b to produce deformation , until the main joint 102 and the auxiliary joint 103 are fixed, the reaction force of the second spring 203c pushes the round rod 203a out of the circular groove X through the resistance plate 203b, the sealing gasket 206 is squeezed and deformed, the clamping rod 202c at the end of the auxiliary joint 103 moves into the long groove W, the clamping rod 202c squeezes the inclined surface of the end of the clamping block 202a, the clamping block 202a is squeezed and slides in the arc groove V, the first spring 202b is squeezed by the clamping block 202a to produce deformation, and the reaction force of the first spring 202b Push the clamping block 202a with force to squeeze one side of the clamping rod 202c until the clamping groove on one side of the clamping rod 202c moves to a position flush with the clamping block 202a, and the reaction force of the first spring 202b pushes the clamping block 202a to move into the clamping groove on one side of the clamping rod 202c, so that the clamping block 202a in the main joint 102 is clamped with the clamping rod 202c at the end of the auxiliary joint 103, thereby completing the fixation of the main joint 102 and the auxiliary joint 103. When disassembling, first turn the turning handle 204b, and then turn the turning handle 204 b drives the connecting block 204a to slide in the limiting groove Z, and the connecting block 204a drives the clamping block 202a to slide in the arc groove V. The first spring 202b is squeezed by the clamping block 202a and deformed until the clamping block 202a is separated from the clamping groove on one side of the clamping rod 202c. The reaction force of the second spring 203c pushes the round rod 203a to the outside of the circular groove X through the resistance plate 203b, and the round rod 203a drives the auxiliary joint 103 away from the main joint 102, thereby completing the disassembly of the main joint 102 and the auxiliary joint 103.

[0057] 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. An MPP power cable protection tube provided with an installation mechanism, characterized in that: include, A main body component (100) comprises a protective tube (101), a main joint (102) and a secondary joint (103), wherein the main joint (102) and the secondary joint (103) are both movably connected to the outside of the protective tube (101); The mounting assembly (200) is located inside the main joint (102), and comprises a baffle (201), a fixing member (202), a resistance member (203), a disassembly member (204), and a limiting member (205); the baffle (201) is movable inside the protective tube (101); the fixing member (202) is arranged inside the main joint (102); the resistance member (203) is located inside the main joint (102); the disassembly member (204) is located outside the main joint (102); and the limiting member (205) is arranged outside the main joint (102).

2. The MPP power cable protection tube provided with a mounting mechanism according to claim 1, characterized in that: The fixing member (202) comprises a clamping block (202a) and a first spring (202b); the clamping block (202a) is movable in the main joint (102); an arc-shaped groove (V) is provided in the main joint (102); the clamping block (202a) is movable in the arc-shaped groove (V); and two ends of the first spring (202b) are respectively fixed to the inner wall of the arc-shaped groove (V) and the clamping block (202a).

3. The MPP power cable protection tube provided with a mounting mechanism as claimed in claim 2, characterized in that: The fixing member (202) further comprises a clamping rod (202c), wherein the clamping rod (202c) is fixed to the end of the auxiliary joint (103), and the clamping rod (202c) is movable in the main joint (102); a long slot (W) is provided in the main joint (102), and the clamping rod (202c) is movable in the long slot (W).

4. The MPP power cable protection tube provided with a mounting mechanism as claimed in claim 3, characterized in that: The resistance member (203) comprises a round rod (203a), and the round rod (203a) is fixed to the end of the auxiliary joint (103).

5. The MPP power cable protection tube provided with a mounting mechanism as claimed in claim 4, characterized in that: The resistance member (203) further comprises a resistance plate (203b) and a second spring (203c); the resistance plate (203b) moves in the main joint (102); a circular groove (X) is provided in the main joint (102); the resistance plate (203b) moves in the circular groove (X); and two ends of the second spring (203c) are respectively fixed to the inner wall of the circular groove (X) and the resistance plate (203b).

6. The MPP power cable protection tube provided with a mounting mechanism as claimed in claim 5, characterized in that: The disassembly member (204) comprises a connection block (204a), the connection block (204a) slides on the outside of the main joint (102), a limiting groove (Z) is provided on the outside of the main joint (102), and the connection block (204a) slides in the limiting groove (Z).

7. The MPP power cable protection tube provided with a mounting mechanism according to claim 6, characterized in that: The disassembly component (204) further comprises a turning handle (204b), wherein the turning handle (204b) is rotatably connected to the outside of the main joint (102), and the turning handle (204b) is fixed to the end of the connection block (204a).

8. The MPP power cable protection tube provided with a mounting mechanism according to claim 6 or 7, characterized in that: The limiting member (205) comprises a fixing sleeve (205a), a limiting rod (205b) and a third spring (205c); the fixing sleeve (205a) is fixed to the outside of the main joint (102); the limiting rod (205b) moves inside the fixing sleeve (205a); and two ends of the third spring (205c) are respectively fixed to the fixing sleeve (205a) and the limiting rod (205b).

9. The MPP power cable protection tube provided with a mounting mechanism as claimed in claim 8, characterized in that: The limiting member (205) further comprises a connecting rod (205d) and a handle (205e), one end of the connecting rod (205d) is fixed to the end of the limiting rod (205b), and the other end of the connecting rod (205d) and the handle (205e) are fixed to the outside of the fixing sleeve (205a).

10. The MPP power cable protection tube provided with a mounting mechanism according to claim 9, characterized in that: The installation assembly (200) further comprises a sealing gasket (206), wherein the sealing gasket (206) is fixed to the end of the main joint (102).

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