Cable protection pipe and installation structure thereof

Abstract

The utility model relates to the technical field of cable protection pipe installation, in particular to a cable protection pipe and an installation structure thereof. The device further comprises a first screw rod, a screw cylinder, a supporting base, a mounting block, a lower clamping plate, a sliding rail, a sliding block, an upper clamping plate, a second screw rod and a rotating handle, the supporting base is fixedly arranged on the bottom face of the clamping plate, and the protection pipe body is placed on the upper end face of the supporting base. When the protective tube body is installed, the protective tube body is firstly placed on the supporting seat, the protective tube body is clamped through the lower clamping plate and the upper clamping plate, installation is rapid, manpower and material resources are saved, when protective tube bodies of different sizes are installed, the rotating handle can be rotated, and the distance between the upper clamping plate and the lower clamping plate can be adjusted. The size of the mounting plate does not need to be changed, the mounting process is simplified, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable protection pipe installation technical field especially relates to a cable protection pipe and installation structure thereof. BACKGROUND

[0002] The cable protection pipe is also called cable pipe, power cable pipe, cement cable pipe, power pipe and power cable protection pipe, which is mainly installed in the section where the communication cable and power line cross, to prevent the power line from breaking and causing short circuit accident, and to prevent the communication cable and steel wire rope from being electrified, so as to protect the cable, exchange machine and machine core board, and even the whole machine is not burned out, and the power line magnetic field interference is also isolated to a certain extent.

[0003] According to the search, the Chinese patent document, the announcement number: CN113824066A, discloses a kind of high-strength MPP cable protection pipe and installation structure, including hall card, the inside bottom wall of the hall card is fixedly connected with support seat, the upper surface of the support seat is provided with cable protection pipe, the inside rotation of the hall card is connected with two adjusting rods, the opposite end of two adjusting rods is fixedly connected with adjusting knob, the outer surface of two adjusting rods is provided with adjusting block, the lower surface of two adjusting blocks is fixedly connected with connecting plate, the opposite side of two connecting plates is fixedly connected with horizontal plate, the opposite side of two horizontal plates is fixedly connected with clamping plate, the inside both sides of the hall card are fixedly connected with limit telescopic rod.The high-strength MPP cable protection pipe and installation structure, by setting sleeve pipe, by the composite cable protection pipe of double-layer structure, plus a group of reinforcing rib support prevents pipeline deformation, to improve the strength of cable protection pipe, reliability is high, prolong its service life, but the installation size of the installation plate of this mechanism is fixed, when different sizes of cable protection pipe need to be installed, corresponding size installation plate must be replaced, not only increase the complexity of installation, also possibly lead to low work efficiency, because additional time and manpower are consumed each time replacement.

[0004] Therefore, aiming at the above-mentioned cable protection pipe installation mechanism, the installation size of the installation plate is fixed, when different sizes of cable protection pipe need to be installed, corresponding size installation plate needs to be replaced, not only increases the complexity of installation, but also possibly leads to low work efficiency, a kind of cable protection pipe and installation structure can be designed, when installing protection pipe body, first, protection pipe body is placed in support seat, protection pipe body is clamped by lower clamping plate and upper clamping plate, installation is fast, saves manpower and material resources, when installing different sizes of protection pipe body, rotating handle can be rotated, the spacing between upper clamping plate and lower clamping plate is adjusted, the size of installation plate does not need to be replaced, simplifies installation process, helps to improve work efficiency, to solve the above-mentioned problems. SUMMARY

[0005] In order to overcome the common cable protection pipe installation mechanism, the installation size of the installation plate is fixed, when the cable protection pipe of different sizes needs to be installed, the installation plate of corresponding size needs to be replaced, which not only increases the complexity of installation, but also may cause the problem of low work efficiency.

[0006] The utility model discloses a technical scheme for a cable protection pipe and its installation structure, which comprises a card house; further comprises a screw rod one, a screw cylinder, a support seat, an installation block, a lower clamping plate, a slide rail, an anti-skid pad, an upper clamping plate, a screw rod two and a rotating handle; the bottom surface of the card house is fixedly provided with the support seat, and the upper end surface of the support seat is placed with the protection pipe body; the inner left surface of the card house is bolted with a fixed plate; the right side surface of the fixed plate is fixedly connected with the screw rod one; the outer side surface of the screw rod one is threadedly connected with the screw cylinder; the right end of the screw cylinder is rotatably connected with an installation block; the inner right surface of the card house is fixedly provided with the anti-skid pad; the side surface of the installation block close to the anti-skid pad is fixedly provided with a lower clamping plate; the right side surface of the installation block is fixedly provided with the slide rail; the slide rail is connected with the upper clamping plate through the sliding block in sliding connection; the front side surface of the upper clamping plate is fixedly provided with a fixed block; the slot of the fixed block is threadedly connected with the screw rod two; the upper end surface of the screw rod two is fixedly provided with the rotating handle; the lower end surface of the screw rod two is rotatably installed on the side plate surface of the lower clamping plate; the protection pipe body is clamped between the lower clamping plate, the upper clamping plate and the anti-skid pad; and the surface of the protection pipe body is provided with a length scale.

[0007] Preferably, when installing the protection pipe body, the protection pipe body is first placed on the support seat, and the screw cylinder is rotated to move the screw cylinder along the screw rod one, thereby pushing the installation block to move, and the mechanism connected with the installation block also moves, thereby driving the left lower clamping plate and the upper clamping plate to move, and the protection pipe body is limited and clamped by the lower clamping plate, the upper clamping plate and the anti-skid pad, thereby achieving fast installation and saving manpower and material resources; when installing protection pipe bodies of different sizes, the rotating handle is rotated to drive the screw rod two to rotate, so that the sliding block on the upper clamping plate slides on the slide rail, thereby moving the upper clamping plate up and down, adjusting the distance between the upper clamping plate and the lower clamping plate, and without the need to replace the size of the installation plate, the installation process is simplified, and the work efficiency is improved.

[0008] As a preferred, the right end surface of the fixed plate is fixedly provided with a limiting slide rod, and the limiting slide rod is in sliding connection with the side plate of the installation block; the limiting slide rod is provided to enable the installation block to move smoothly along the direction of the limiting slide rod when moving, thereby avoiding the shaking or deviation that may be caused by the single driving of the screw rod one, improving the stability of the movement of the installation block, and reducing the deviation caused by the change of load.

[0009] As preferred, the left end face of the hall card is fixedly provided with a horizontal plate, a height scale screw rod is threadedly connected in the groove of the horizontal plate, a rotating handle is fixedly arranged at the lower end face of the height scale screw rod, the protective tube body includes a base one, a fireproof sleeve, a buffer sleeve, a buffer spring, a base two, an outer buffer layer, an anti-corrosion layer and a support plate, the protective tube body contains multiple layers of structure, each layer has its specific function to ensure the safety and reliability of the cable in various environments, the height scale screw rod is threadedly connected with the horizontal plate and has a height scale to facilitate accurate adjustment, and the structure enables the overall device to have more precise height adjustment function, which provides convenience for installing the cable protective tube at different heights or adjusting the position of the protective tube.

[0010] As preferred, the outer side surface of the base one is fixedly connected with one end of multiple buffer springs, the other end of the multiple buffer springs is fixedly connected with a support plate, the support plate is arranged in a circular arc shape, the base one serves as the first layer inside the protective tube and mainly plays a role of supporting the cable and providing a stable internal environment, the buffer spring is arranged to increase the elastic buffering effect of the protective tube, when the protective tube is subjected to external pressure, the buffer spring can be compressed to absorb part of the external force, thereby reducing the direct impact on the internal cable, the support plate is arranged to provide a fixed support point for the buffer spring, and the support plate is arranged in a circular arc shape, which not only helps to better fix the buffer spring, but also can evenly distribute the pressure to the entire support plate when the protective tube is subjected to extrusion, thereby reducing the local excessive pressure concentration.

[0011] As preferred, the outer side of the base one is wrapped with a fireproof sleeve, and the outer side of the buffer spring is sleeved with a buffer sleeve, the fireproof sleeve is wrapped outside the base one to provide the effect of fire protection, preventing the flame from spreading to the inside of the cable, thereby protecting the cable from fire damage, the fireproof sleeve is made of polymer material, which can maintain structural integrity at high temperature and has good heat insulation performance, the buffer sleeve is sleeved outside the buffer spring, which further increases the buffering performance of the protective tube while the buffer spring absorbs the impact force, thereby reducing the impact of external impact on the cable, and the buffer sleeve is made of rubber material to improve the anti-seismic performance of the cable protective tube.

[0012] As preferred, the outer side surfaces of the three support plates are coated with a base two, the base two is made of fireproof material, the base one is made of waterproof material, and the support plate is made of heat dissipation material, the base one is made of polyethylene, which has excellent waterproof performance, chemical corrosion resistance and good flexibility, ensuring that the cable can still be protected in a humid or waterlogged environment, the support plate is made of copper material, which can help quickly dissipate the heat generated by the cable during operation, avoiding the performance degradation or damage of the cable due to high temperature, and the base two is made of flame-retardant poly-ceramic fiber, which can form a fireproof barrier around the cable, delaying the spread of fire even in the event of a fire, and protecting the cable from direct impact of the fire source.

[0013] Preferably, the inner side surface of the outer layer buffer layer is wrapped with the base two, and the outer surface of the outer layer buffer layer is coated with the anticorrosive layer, the anticorrosive layer is coated on the outer surface of the outer layer buffer layer, and the anticorrosive layer prevents the protection tube from being eroded by chemical substances, thereby prolonging the service life of the protection tube.

[0014] The cable protection pipe and the installation structure thereof have the advantages that:

[0015] 1、In the installation of the protection pipe body, first, the protection pipe body is placed on the support seat, and the screw cylinder is rotated, so that the screw cylinder moves along the screw rod one, thereby pushing the installation block to move, and the mechanism connected with the installation block also moves, thereby driving the left lower clamping plate and the upper clamping plate to move, and the lower clamping plate and the upper clamping plate limit and clamp the protection pipe body through the anti-skid pad, so that the installation is fast and manpower and material resources are saved; when installing protection pipe bodies of different sizes, the rotating handle is rotated, thereby driving the screw rod two to rotate, so that the sliding block on the upper clamping plate slides on the sliding rail, thereby moving the upper clamping plate up and down, and the distance between the upper clamping plate and the lower clamping plate is adjusted, without the need to replace the size of the installation plate, the installation process is simplified, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A cable protection pipe and an installation structure thereof are shown in the three-dimensional structure schematic view;

[0017] Figure 2 A cable protection pipe and an installation structure thereof are shown in the three-dimensional structure schematic view of the place where the screw rod one is located;

[0018] Figure 3 A cable protection pipe and an installation structure thereof are shown in the three-dimensional structure schematic view of the place where the screw rod two is located;

[0019] Figure 4 A cable protection pipe and an installation structure thereof are shown in the three-dimensional structure schematic view of the place where the base one is located;

[0020] Figure 5 A cable protection pipe and an installation structure thereof are shown in the three-dimensional structure schematic view of the place where the outer layer buffer layer is located;

[0021] Figure 6 A cable protection pipe and an installation structure thereof are shown in the three-dimensional structure schematic view of the place where the support plate is located.

[0022] Figure 7 A cable protection pipe and an installation structure thereof are shown in the three-dimensional structure schematic view of the protection pipe body.

[0023] Explanation of reference signs: 1, hall card; 2, fixed plate; 3, screw rod one; 4, screw cylinder; 5, protective pipe body; 6, support seat; 7, limiting sliding rod; 8, mounting block; 9, lower clamping plate; 10, sliding rail; 11, non-slip pad; 12, upper clamping plate; 13, fixed block; 14, screw rod two; 15, rotating handle; 16, base one; 17, fireproof sleeve; 18, buffer sleeve; 19, buffer spring; 20, base two; 21, outer buffer layer; 22, anti-corrosion layer; 23, support plate; 24, cross plate; 25, height scale screw rod; 26, rotating handle. DETAILED DESCRIPTION

[0024] The utility model is further explained in connection with the drawings and examples.

[0025] Please refer to Figures 1-7 , the utility model provides a kind of embodiment: a kind of cable protective pipe and its installation structure, including hall card 1;Further include screw rod one 3, screw cylinder 4, support seat 6, mounting block 8, lower clamping plate 9, sliding rail 10, non-slip pad 11, upper clamping plate 12, screw rod two 14 and rotating handle 15, the bottom surface of hall card 1 is fixedly provided with support seat 6, protective pipe body 5 is placed on the upper end surface of support seat 6, the inner side left surface of hall card 1 is bolted with fixed plate 2, the right side surface of fixed plate 2 is fixedly connected with screw rod one 3, the outer side surface of screw rod one 3 is threadedly connected with screw cylinder 4, one mounting block 8 is rotatably connected to the right end of screw cylinder 4, the inner side right surface of hall card 1 is fixedly provided with non-slip pad 11, one lower clamping plate 9 is fixedly provided on the side surface of mounting block 8 close to non-slip pad 11, the right side surface of mounting block 8 is fixedly provided with sliding rail 10, and upper clamping plate 12 is connected by the sliding block of sliding connection of sliding rail 10, the front side surface of upper clamping plate 12 is fixedly provided with fixed block 13, screw rod two 14 is threadedly connected in the groove of fixed block 13, rotating handle 15 is fixedly provided on the upper end surface of screw rod two 14, and screw rod two 14 is rotatably installed on the side plate surface of lower clamping plate 9 lower end surface, and protective pipe body 5 is clamped between lower clamping plate 9 and upper clamping plate 12 and non-slip pad 11, and the surface of protective pipe body 5 is provided with length scale.

[0026] Please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 And Figure 6In this embodiment, the right end surface of the fixed plate 2 is fixedly provided with a limiting slide rod 7, which is in sliding connection with the side plate of the mounting block 8. The limiting slide rod 7 is arranged to enable the mounting block 8 to move smoothly along the direction of the limiting slide rod 7 when moving, thereby avoiding the shaking or deviation that may be caused by the single screw rod 3 driving, improving the stability of the movement of the mounting block 8, and reducing the deviation caused by the change of load. The left end surface of the cabinet 1 is fixedly provided with a horizontal plate 24, and the groove of the horizontal plate 24 is threadedly connected with a height scale lead screw 25. The lower end surface of the height scale lead screw 25 is fixedly provided with a rotating handle 26. The protection tube body 5 includes a base 16, a fireproof sleeve 17, a buffer sleeve 18, a buffer spring 19, a base 20, an outer buffer layer 21, an anti-corrosion layer 22, and a support plate 23. The protection tube body 5 comprises a multi-layer structure, each layer having a specific function to ensure the safety and reliability of the cable in various environments. The height scale lead screw 25 is threadedly connected with the horizontal plate 24 and has a height scale to facilitate accurate adjustment. This structure enables the overall device to have a more precise height adjustment function, providing convenience for installing the cable protection tube at different heights or adjusting the position of the protection tube. The outer surface of the base 16 is fixedly connected with one end of a plurality of buffer springs 19, and the other end of the plurality of buffer springs 19 is fixedly connected with a support plate 23. The support plate 23 is arranged in a circular arc shape. The base 16 serves as the first layer inside the protection tube, mainly supporting the cable and providing a stable internal environment. The arrangement of the buffer spring 19 increases the elastic buffering effect of the protection tube. When the protection tube is subjected to external pressure, the buffer spring 19 can be compressed to absorb part of the external force, thereby reducing the direct impact on the internal cable. The arrangement of the support plate 23 provides a fixed support point for the buffer spring 19, and the support plate 23 is arranged in a circular arc shape, which not only helps to better fix the buffer spring 19, but also evenly distributes the pressure to the entire support plate 23 when the protection tube is subjected to extrusion, reducing the local excessive pressure concentration.

[0027] Please refer to Figures 4-6In this embodiment, the outer side of the base 16 is wrapped with a fireproof sleeve 17, and the outer side of the buffer spring 19 is sleeved with a buffer sleeve 18. The fireproof sleeve 17 is wrapped on the outer side of the base 16, which provides the effect of fireproof protection, prevents the spread of fire to the inside of the cable, thereby protecting the cable from the damage of fire. The fireproof sleeve 17 is made of polymer material, which can maintain structural integrity at high temperature and has good heat insulation performance. The buffer sleeve 18 is sleeved on the outer side of the buffer spring 19, which further increases the buffering performance of the protection tube while the buffer spring 19 absorbs the impact force, reduces the impact of external impact on the cable. The buffer sleeve 18 is made of rubber material to improve the anti-seismic performance of the cable protection tube. The outer side surface of the three support plates 23 is coated with a base 20, which is made of fireproof material. The base 16 is made of waterproof material, and the support plate 23 is made of heat dissipation material. The base 16 is made of polyethylene, which has excellent waterproof performance, chemical corrosion resistance and good flexibility, ensuring that the cable can still be protected in a humid or waterlogged environment. The support plate 23 is made of copper material, which can help quickly dissipate the heat generated by the cable during operation, avoiding the performance degradation or damage of the cable due to high temperature. The base 20 is made of flame-retardant poly-ceramic fiber, which can form a fireproof barrier around the cable, delaying the spread of fire even in the event of a fire, protecting the cable from direct impact of the fire source. The inner side surface of the outer buffer layer 21 is wrapped with a base 20, and the outer surface of the outer buffer layer 21 is coated with a corrosion-resistant layer 22. The corrosion-resistant layer 22 is coated on the outer surface of the outer buffer layer 21 to prevent the protection tube from being eroded by chemicals, thereby prolonging the service life of the protection tube.

[0028] In the process of working, when installing the protective tube body 5, first place the protective tube body 5 on the support seat 6, rotate the screw cylinder 4, the screw cylinder 4 can move along the screw rod one 3, so as to push the installation block 8 to move, the mechanism connected with the installation block 8 will also move, so as to drive the left lower clamping plate 9 and the upper clamping plate 12 to move, through the lower clamping plate 9 and the upper clamping plate 12 and the non-slip pad 11, the protective tube body 5 is limited and clamped, so as to install quickly, save manpower and material resources, when installing protective tube body 5 of different sizes, the rotating handle 15 can be rotated, so as to drive the screw rod two 14 to rotate, the slider on the upper clamping plate 12 slides on the slide rail 10, so as to move the upper clamping plate 12 up and down, adjust the distance between the upper clamping plate 12 and the lower clamping plate 9, without changing the size of the installation plate, simplify the installation process, help to improve work efficiency, the setting of the limiting slide rod 7 makes the installation block 8 move smoothly along the direction of the limiting slide rod 7, avoids the shaking or deviation caused by relying on the screw rod one 3 alone, improves the stability of the movement of the installation block 8, reduces the deviation caused by load change, the height scale screw rod 25 is screwed with the cross plate 24, and has a height scale, so as to accurately adjust, the structure makes the whole device have more fine height adjustment function, provides convenience for installing cable protection pipe or adjusting the position of the protection pipe at different heights, the protective tube body 5 contains multiple layers, each layer has its specific function, to ensure the safety and reliability of the cable in various environments, the base one 16 is the first layer inside the protection pipe, mainly plays the role of supporting the cable and provides a stable internal environment, the setting of the buffer spring 19 increases the elastic buffer effect of the protection pipe, when the protection pipe is subjected to external pressure, the buffer spring 19 can be compressed, absorbs part of the external force, so as to reduce the direct impact on the internal cable, the setting of the support plate 23 provides a fixed support point for the buffer spring 19, and the support plate 23 is arc-shaped, which not only helps to fix the buffer spring 19 better, but also can evenly distribute the pressure to the whole support plate 23 when the protection pipe is subjected to extrusion, reducing the local excessive pressure concentration, the fireproof sleeve 17 is wrapped outside the base one 16, providing the effect of fireproof protection, preventing the flame from spreading to the inside of the cable, so as to protect the cable from fire damage, the fireproof sleeve 17 is made of polymer material, which can maintain structural integrity at high temperature and has good heat insulation performance, the buffer sleeve 18 is sleeved outside the buffer spring 19, which further increases the buffer performance of the protection pipe while the buffer spring 19 absorbs the impact force, reducing the influence of external impact on the cable, the buffer sleeve 18 is made of rubber material, to improve the anti-seismic performance of the cable protection pipe, the polyethylene material has excellent waterproof performance, chemical corrosion resistance and good flexibility, ensuring that the cable can still be protected in a humid or waterlogged environment, the support plate 23 is made of copper material, which can help to quickly dissipate the heat generated by the cable during work,In order to avoid the performance degradation or damage of the cable caused by high temperature, the base 20 is made of flame-retardant poly-ceramic fiber, which can form a fireproof barrier around the cable, delay the spread of fire and protect the cable from direct impact of the fire source. The corrosion-resistant layer 22 is coated on the outer surface of the outer buffer layer 21 to prevent the protection tube from being eroded by chemicals, thereby prolonging the service life of the protection tube.

[0029] Through the above steps, when installing the protection tube body 5, first place the protection tube body 5 on the support seat 6, rotate the screw cylinder 4, so that the screw cylinder 4 moves along the screw rod 1, thereby pushing the installation block 8 to move, and the mechanism connected with the installation block 8 also moves, thereby driving the left lower clamping plate 9 and the upper clamping plate 12 to move. The protection tube body 5 is limited and clamped by the lower clamping plate 9 and the upper clamping plate 12 and the non-slip mat 11, so as to install quickly and save manpower and material resources. When installing protection tube bodies 5 of different sizes, the rotating handle 15 can be rotated to drive the screw rod 2 to rotate, so that the sliding block on the upper clamping plate 12 slides on the sliding rail 10, thereby moving the upper clamping plate 12 up and down, adjusting the distance between the upper clamping plate 12 and the lower clamping plate 9. Without changing the size of the installation plate, the installation process is simplified, which helps to improve work efficiency. To solve the common cable protection tube installation mechanism, the installation size of the installation plate is fixed. When it is necessary to install cable protection tubes of different sizes, it is necessary to replace the installation plate of the corresponding size. Not only does it increase the complexity of installation, but it may also cause low work efficiency.

Claims

1. A cable protection tube and its installation structure, comprising a duct (1); characterized in that: The utility model also includes screw rod one (3), screw cylinder (4), support seat (6), mounting block (8), lower clamping plate (9), slide rail (10), antiskid pad (11), upper clamping plate (12), screw rod two (14) and rotating handle (15), the bottom surface fixed setting of hall card (1) has support seat (6), the upper end surface of support seat (6) places protection pipe body (5), the inside left surface bolted connection of hall card (1) has fixed plate (2), the right side surface fixed connection of fixed plate (2) has screw rod one (3), the outside surface screw joint of screw rod one (3) has screw cylinder (4), one mounting block (8) is rotatably connected to the right end of screw cylinder (4), the inside right surface fixed setting of hall card (1) has antiskid pad (11), one lower clamping plate (9) is fixedly arranged on the side surface of mounting block (8) close to antiskid pad (11), the right side surface fixed setting of mounting block (8) has slide rail (10), the upper clamping plate (12) is connected through the sliding block of slide rail (10), the front side surface fixed setting of upper clamping plate (12) has fixed block (13), the screw rod two (14) is screwed in the groove of fixed block (13), the upper end surface fixed setting of screw rod two (14) has rotating handle (15), the lower end surface of screw rod two (14) is rotatably installed in the side plate surface of lower clamping plate (9), and the protection pipe body (5) is clamped between lower clamping plate (9) and upper clamping plate (12) and antiskid pad (11), and the surface of protection pipe body (5) is provided with length scale.

2. A cable protection tube according to claim 1, and its installation structure, characterized in that: The right end surface of fixed plate (2) is fixedly provided with a limiting slide rod (7), and the limiting slide rod (7) is slidably connected with the side plate of mounting block (8).

3. A cable protection tube according to claim 1, and its installation structure, characterized in that: The left end surface of hall card (1) is fixedly provided with a horizontal plate (24), the horizontal plate (24) is screwed in the groove of a height scale screw rod (25), the lower end surface of height scale screw rod (25) is fixedly provided with a rotating handle (26), and the protection pipe body (5) comprises a base one (16), a fireproof sleeve (17), a buffer sleeve (18), a buffer spring (19), a base two (20), an outer buffer layer (21), an anticorrosion layer (22) and a support plate (23).

4. A cable protection tube according to claim 3, and its installation structure, characterized in that: The outer side surface of base one (16) is fixedly connected with one end of a plurality of buffer springs (19), the other end of the plurality of buffer springs (19) is fixedly connected with a support plate (23), and the support plate (23) is arranged in a circular arc shape.

5. A cable protection tube according to claim 4, and its installation structure, characterized in that: The outer side of base one (16) is wrapped with a fireproof sleeve (17), and the outer side of buffer spring (19) is sleeved with a buffer sleeve (18).

6. A cable protection tube according to claim 5, and its installation structure, characterized in that: The outer side surfaces of the three support plates (23) are covered with base two (20), base two (20) is made of fireproof material, base one (16) is made of waterproof material, and the support plate (23) is made of heat dissipation material.

7. A cable protection tube according to claim 6, and its installation structure, characterized in that: The inner side surface of outer buffer layer (21) is wrapped with base two (20), and the outer surface of outer buffer layer (21) is coated with anticorrosion layer (22).

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