Split combined type power cable sheath tube

Abstract

The invention relates to the technical field of cable sheath pipe structures, in particular to a split combined power cable sheath pipe which comprises a left connecting pipe, a movable sleeve is connected to the right side of the left connecting pipe, a right connecting pipe is arranged on the right side of the movable sleeve, and the left connecting pipe, the movable sleeve and the right connecting pipe are combined into a pipe set. The left connecting pipe comprises a left upper cover pipe, the bottom end of the left upper cover pipe is provided with a left lower cover pipe in a buckled mode, the side edges of the left upper cover pipe and the left lower cover pipe are connected with first base plates, and the two first base plates are fixed in a butt joint mode through a first clamping pin. By arranging the left connecting pipe, the movable sleeve and the right connecting pipe which are oppositely opened, compared with a traditional structure, the left connecting pipe, the movable sleeve and the right connecting pipe of the device are each divided into two half pipes, the cross section of each half pipe is semicircular, the sheath pipe can directly sleeve a cable from the side face through the design, and the installation process is greatly simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of cable protection tube structures, and in particular to a split combined power cable protection tube. Background Art

[0002] Power cables play a crucial role in modern power transmission and distribution systems. In order to protect the cables from mechanical damage, environmental erosion, and chemical corrosion, power cables usually need to be installed in protection tubes. Traditional power cable protection tubes are mostly of a single-piece structure, that is, the entire protection tube is an integral whole.

[0003] Although the single-piece casing structure has a certain protective effect, there are some problems in practical applications. Since the protection tube is an integral structure, when installing, the cable needs to be inserted into the protection tube from one end. For long-distance cables or cables that have already been laid, the installation process is very cumbersome and time-consuming. When the cable fails and needs to be repaired, the protection tube must be completely removed and then reinstalled, which not only increases the repair difficulty but may also cause secondary damage, seriously affecting the construction and maintenance efficiency. Therefore, a split combined power cable protection tube is needed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems raised in the above background art.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A split combined power cable protection tube includes a left connection tube. A movable tube is connected to the right side of the left connection tube, and a right connection tube is arranged on the right side of the movable tube. The left connection tube, the movable tube, and the right connection tube are combined into a tube group. The two tube groups on the left and right are butt-jointed and fixed through a reinforcement component. The left connection tube includes an upper left cover tube, and a lower left cover tube is buckled at the bottom of the upper left cover tube. First pads are connected to the sides of the upper left cover tube and the lower left cover tube, and the two first pads are butt-jointed and fixed through a first pin. The right connection tube includes an upper right cover tube, and a lower right cover tube is buckled at the bottom of the upper right cover tube. Second pads are connected to the sides of the upper right cover tube and the lower right cover tube, and the two second pads are butt-jointed and fixed through a second pin. The left connection tube, the movable tube, and the right connection tube are combined to form a tube group. Adjacent two tube groups are butt-jointed by clamping, which is convenient for assembling multiple tube groups according to the actual cable usage length.

[0006] Preferably, the first bayonet pin and the second bayonet pin have the same structure, and both of them consist of a horizontal plate end and two column ends. The column ends of the first bayonet pin and the second bayonet pin are provided with a plurality of rubber rings, and the rubber rings are in contact with and fit against the bottom surfaces of the first pad and the second pad. When the upper left cover tube and the lower left cover tube are docked, the column end of the first bayonet pin is inserted between the two first pads, and the rubber ring of the column end can be buckled to the bottom surface of the first pad, so as to facilitate the quick docking between the upper left cover tube and the lower left cover tube.

[0007] Preferably, the left upper cover tube and the left lower cover tube are connected to the left inner wall with an inner rubber ring, and the left and right sides of the inner wall of the inner rubber ring are inclined. The inclined design of the left and right sides of the inner rubber ring can facilitate the insertion of the cable and reduce the resistance of the cable during insertion.

[0008] Preferably, the sides of the upper left cover tube and the lower left cover tube are connected with a plurality of clamping blocks, and the right sides of the upper right cover tube and the lower right cover tube are provided with clamping grooves adapted to the clamping blocks, and by rotating one of the tube groups, the clamping blocks can be moved and buckled into the clamping grooves of the upper right cover tube and the lower right cover tube, thereby ensuring the stability of the docking of the two tube groups.

[0009] Preferably, the surface of the upper left cover tube and the lower left cover tube is connected with a first limiting ring, and the outer side of the upper right cover tube and the lower right cover tube is connected with a second limiting ring, and the reinforcement component includes a combined clamp ring A and a clamp ring B, and the clamp ring A and the clamp ring B are buckled on the outer side of the first limiting ring and the second limiting ring. The clamp ring A and the clamp ring B are buckled on the outer side of the first limiting ring and the second limiting ring, thereby ensuring the docking tightness of the upper left cover tube, the lower left cover tube and the upper right cover tube, and the lower right cover tube, preventing the right connecting tube and the left connecting tube from loosening during pulling.

[0010] Preferably, a movable shaft is movably installed on the surface of the clamp ring B, and the end of the movable shaft is inserted into the inside of the fixed seat through a groove, a locking block is inserted into the inside of the groove of the fixed seat through a through groove, and the bottom end of the locking block is connected to a reset spring, the bottom end of the reset spring is connected and fixed to the inner end surface of the through groove of the fixed seat, the top end of the locking block is inserted into the inside of the movable shaft through a slot, and the movable shaft is rotated into the groove of the fixed seat so that the locking block is inserted in the slot of the movable shaft, thereby ensuring the installation tightness of the clamp ring A and the clamp ring B.

[0011] Preferably, an inclined surface is provided on the surface of the locking block, and the end of the movable shaft is inclined toward one side of the locking block. A toggle groove adapted to the locking block is provided on the movable shaft and the top of the fixed seat. Under the elastic force of the reset spring, the locking block can be controlled to be inserted into the clamping groove of the movable shaft for fixation, which is convenient for the buckling and docking of the clamping ring A and the clamping ring B. The toggle groove design of the movable shaft and the fixed seat can facilitate the staff to press down the locking block with tools to control the clamping state of the locking block and the movable shaft.

[0012] Preferably, the movable sleeve includes a lower movable pipe fitting and an upper movable pipe fitting. The left and right sides of the lower movable pipe fitting are respectively connected and fixed to the upper left cover pipe and the upper right cover pipe. The left and right sides of the upper movable pipe fitting are respectively connected and fixed to the lower left cover pipe and the lower right cover pipe. Corresponding indicator plates are connected to the surfaces of the upper right cover pipe, the lower right cover pipe, the upper left cover pipe, and the lower left cover pipe. The split design allows the pipe group to be directly sleeved on the cable from the side, greatly simplifying the installation process, especially suitable for cables that have already been laid. The inner layer of the inner walls of the lower movable pipe fitting and the upper movable pipe fitting is a soft inner lining protection layer, which can effectively buffer the mechanical impact on the cable and prevent damage to the cable surface.

[0013] Preferably, air interlayers are provided inside both the lower movable pipe fitting and the upper movable pipe fitting. A number of limiting rubber rings are connected to one side of the upper movable pipe fitting, and the limiting rubber rings are inserted into the air interlayers of the lower movable pipe fitting. The air interlayers of the lower movable pipe fitting and the upper movable pipe fitting can, to a certain extent, increase the structural stability, reduce the influence of external pressure on the pipeline, thereby extending the service life of the pipeline. The air interlayer can also play a buffering role and reduce the probability of damage to the pipeline when it is impacted or vibrated.

[0014] The present invention has at least the following beneficial effects: 1. By setting the split left connecting pipe, movable sleeve and right connecting pipe, compared with the traditional structure, the left connecting pipe, movable sleeve and right connecting pipe of the present device are all divided into two half pipes, and the cross-section of each half pipe is semicircular. This design allows the protective sleeve to be directly sleeved on the cable from the side, greatly simplifying the installation process, especially suitable for cables that have already been laid.

[0015] 2. By forming a pipe group with the left connecting pipe, movable sleeve and right connecting pipe, and setting clamping blocks on the sides of the upper left cover pipe and the lower left cover pipe, the clamping blocks can be inserted into the clamping grooves on the sides of the upper right cover pipe and the lower right cover pipe on the right side. The cooperation of the clamping blocks and the clamping grooves can quickly fix the two pipe groups together, ensuring the convenient docking and stability of the two pipe groups, facilitating the adaptation and assembly, and meeting the cable sheathing protection requirements. When the cable fails and needs to be repaired, it is not necessary to completely remove the protective sleeve, avoiding secondary damage to the cable during the overall removal.

[0016] 3. By setting the reinforcement component, the reinforcement of the left and right two pipe groups is realized. By fitting the hoop A and the hoop B at the connection of the left connecting pipe and the right connecting pipe, the first limiting ring and the second limiting ring are made to abut and fit on the inner sides of the hoop A and the hoop B, and are fixed by the cooperation of the movable shaft and the locking block, thereby strengthening the docking of the left connecting pipe and the right connecting pipe and preventing the left connecting pipe and the right connecting pipe from being easily separated during pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 External structure schematic diagram of a split-type combined power cable protection sleeve proposed by the present invention; Figure 2 Disassembly structure schematic diagram of the pipe group in a split-type combined power cable protection sleeve proposed by the present invention; Figure 3 Disassembly structure schematic diagram of the docking state of the left connecting pipe and the right connecting pipe in a split-type combined power cable protection sleeve proposed by the present invention; Figure 4 Left view disassembly structure schematic diagram of the left connecting pipe and the right connecting pipe in a split-type combined power cable protection sleeve proposed by the present invention; Figure 5 Docking state structure schematic diagram of the left connecting pipe and the right connecting pipe in a split-type combined power cable protection sleeve proposed by the present invention; Figure 6 Three-dimensional structure schematic diagram of the reinforcement component in a split-type combined power cable protection sleeve proposed by the present invention; Figure 7 Partial disassembly structure schematic diagram of the reinforcement component in a split-type combined power cable protection sleeve proposed by the present invention.

[0019] In the figure: 1, left connecting pipe; 11, upper left cover pipe; 12, lower left cover pipe; 13, first backing plate; 14, first locking pin; 15, first limiting ring; 16, inner rubber ring; 17, clamping block; 2, movable sleeve; 21, lower movable pipe fitting; 22, upper movable pipe fitting; 23, limiting rubber ring; 3, right connecting pipe; 31, upper right cover pipe; 32, lower right cover pipe; 33, second backing plate; 34, second locking pin; 35, indicator board; 36, second limiting ring; 4, reinforcement component; 41, hoop ring A; 42, hoop ring B; 43, movable shaft; 44, fixed seat; 45, return spring; 46, locking block. Detailed implementation manners

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further elaborates on the present invention in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] Refer to Figures 1-7A split combined power cable sheath pipe comprises a left pipe 1, a movable sleeve 2 is connected to the right side of the left pipe 1, and a right pipe 3 is arranged on the right side of the movable sleeve 2, the left pipe 1, the movable sleeve 2 and the right pipe 3 are combined into a pipe group, and the left and right pipe groups are butt-jointed and fixed by a reinforcing component 4, the left pipe 1 comprises a left upper cover pipe 11, a left lower cover pipe 12 is buckled on the bottom end of the left upper cover pipe 11, the sides of the left upper cover pipe 11 and the left lower cover pipe 12 are both connected with a first pad 13, and the two first pads 13 are butt-jointed and fixed by a first bayonet 14, the right pipe 3 comprises a right upper cover pipe 31, a right lower cover pipe 32 is buckled on the bottom end of the right upper cover pipe 31, the sides of the right upper cover pipe 31 and the right lower cover pipe 32 are both connected with a second pad 33, and the two second pads 33 are butt-jointed and fixed by a second bayonet 34.

[0022] The first bayonet 14 and the second bayonet 34 have the same structure. Both the first bayonet 14 and the second bayonet 34 consist of a horizontal plate end and two column ends. The column ends of the first bayonet 14 and the second bayonet 34 are provided with a plurality of rubber rings, and the rubber rings are in contact with and fit against the bottom surfaces of the first pad 13 and the second pad 33.

[0023] The left inner walls of the upper left cover tube 11 and the lower left cover tube 12 are connected with an inner rubber ring 16 , and the inner walls of the inner rubber ring 16 are inclined on both sides.

[0024] A plurality of clamping blocks 17 are connected to the sides of the left upper cover tube 11 and the left lower cover tube 12 , and clamping grooves adapted to the clamping blocks 17 are provided on the right sides of the right upper cover tube 31 and the right lower cover tube 32 .

[0025] A first limiting ring 15 is connected to the surface of the left upper cover tube 11 and the left lower cover tube 12, a second limiting ring 36 is connected to the outer side of the right upper cover tube 31 and the right lower cover tube 32, and the reinforcement component 4 includes a combined clamping ring A41 and a clamping ring B42, which are buckled on the outer side of the first limiting ring 15 and the second limiting ring 36.

[0026] A movable shaft 43 is movably installed on the surface of the clamp ring B42, and the end of the movable shaft 43 is inserted into the inside of the fixed seat 44 through a groove, a locking block 46 is inserted into the inside of the groove of the fixed seat 44 through a through groove, and the bottom end of the locking block 46 is connected to a return spring 45, the bottom end of the return spring 45 is connected and fixed to the inner end face of the through groove of the fixed seat 44, and the top of the locking block 46 is inserted into the movable shaft 43 through a slot.

[0027] The locking block 46 has an inclined surface, the end of the movable shaft 43 is inclined toward the locking block 46 , and the movable shaft 43 and the top of the fixing seat 44 have a toggle groove adapted to the locking block 46 .

[0028] The movable sleeve 2 includes a lower movable pipe fitting 21 and an upper movable pipe fitting 22. The left and right sides of the lower movable pipe fitting 21 are respectively connected and fixed to the upper left cover pipe 11 and the upper right cover pipe 31. The left and right sides of the upper movable pipe fitting 22 are respectively connected and fixed to the lower left cover pipe 12 and the lower right cover pipe 32. Corresponding indicator plates 35 are connected to the surfaces of the upper right cover pipe 31, the lower right cover pipe 32, the upper left cover pipe 11, and the lower left cover pipe 12.

[0029] An air sandwich layer is provided inside both the lower movable pipe fitting 21 and the upper movable pipe fitting 22. A number of limit rubber rings 23 are connected to one side of the upper movable pipe fitting 22, and the limit rubber rings 23 are inserted into the air sandwich layer inside the lower movable pipe fitting 21.

[0030] The left connecting pipe 1, the movable sleeve 2, and the right connecting pipe 3 are combined to form a pipe group. The adjacent two pipe groups are connected and docked by snap connection, which is convenient for assembling multiple pipe groups according to the actual cable usage length. The snap block 17 is engaged with the card slot, and the two pipe groups can be quickly fixed together, ensuring the convenient docking and stability of the two pipe groups, facilitating the adaptation and assembly, and meeting the cable set protection requirements.

[0031] The first backing plate 13 and the second backing plate 33 have the same structure, and the first pin 14 and the second pin 34 have the same structure. Taking the docking structure of the upper left cover pipe 11 and the lower left cover pipe 12 as an example, when the upper left cover pipe 11 and the lower left cover pipe 12 are docked, when the column end of the first pin 14 penetrates between the two first backing plates 13, the rubber ring at the column end can be buckled back to the bottom surface of the first backing plate 13, which is convenient for the quick docking between the upper left cover pipe 11 and the lower left cover pipe 12, and at the same time ensures the docking stability of the upper left cover pipe 11 and the lower left cover pipe 12.

[0032] Through the inclined design of the left and right sides of the inner rubber ring 16, it is convenient for the cable to penetrate, reducing the resistance of the cable during penetration. At the same time, during docking, the inner rubber ring 16 of one pipe group is inserted into the upper right cover pipe 31 and the lower right cover pipe 32 of another pipe group, which can play a role in docking positioning.

[0033] When the two pipe groups are docked, the snap block 17 can be inserted into the card slots of the upper right cover pipe 31 and the lower right cover pipe 32 to ensure the convenience of docking. By rotating one of the pipe groups, the snap block 17 can be moved and buckled into the card slots of the upper right cover pipe 31 and the lower right cover pipe 32 to ensure the docking stability of the two pipe groups.

[0034] The first limiting ring 15 and the second limiting ring 36 are designed to position the clamp ring A41 and the clamp ring B42. The sides of the first limiting ring 15 and the second limiting ring 36 are in contact with the inner walls of the clamp ring A41 and the clamp ring B42. The clamp ring A41 and the clamp ring B42 are buckled on the outside of the first limiting ring 15 and the second limiting ring 36, thereby ensuring the docking tightness of the left upper cover tube 11, the left lower cover tube 12 and the right upper cover tube 31, the right lower cover tube 32, and preventing the right connecting tube 3 and the left connecting tube 1 from loosening during pulling.

[0035] When the hoop ring A41 and the hoop ring B42 are buckled on the surfaces of the first limiting ring 15 and the second limiting ring 36, the movable shaft 43 is rotated to the groove of the fixed seat 44, so that the locking block 46 is inserted into the slot of the movable shaft 43, thereby ensuring the installation tightness of the hoop ring A41 and the hoop ring B42. The movable shaft 43 can be limited by the groove of the fixed seat 44 to prevent the movable shaft 43 from shaking up and down during use, affecting the insertion and positioning effect of the movable shaft 43 in the groove of the fixed seat 44.

[0036] When the movable shaft 43 is rotated and inserted into the groove of the fixed seat 44, the movable shaft 43 can squeeze the inclined surface of the locking block 46. Along with the movement of the movable shaft 43, the locking block 46 moves to the bottom of the slot of the movable shaft 43. Under the elastic force of the reset spring 45, the locking block 46 can be controlled to be inserted in the slot of the movable shaft 43 for fixation, which is convenient for the buckling and docking of the clamping ring A41 and the clamping ring B42. The toggle groove design of the movable shaft 43 and the fixed seat 44 can facilitate the staff to press down the locking block 46 with tools to control the clamping state of the locking block 46 and the movable shaft 43.

[0037] The lower movable tube 21 is docked with the left lower cover tube 12 and the right lower cover tube 32, and the upper movable tube 22 is docked with the left upper cover tube 11 and the right upper cover tube 31, so that the right upper cover tube 31, the upper movable tube 22 and the left upper cover tube 11 can be turned over synchronously, which is convenient for the embedded installation of the cable. The split design allows the tube group to be directly put on the cable from the side, which greatly simplifies the installation process, and is especially suitable for cables that have been laid. The inner layer of the inner wall of the lower movable tube 21 and the upper movable tube 22 is a soft lining protective layer, which can effectively buffer the mechanical impact on the cable and prevent the cable surface from being damaged. Through the design of the indicator plate 35, the card block 17 can be adapted to the card slot position of the right upper cover tube 31 and the right lower cover tube 32, ensuring that the card block 17 is quickly inserted into the card slot of the right upper cover tube 31 and the right lower cover tube 32.

[0038] When the current movable pipe fitting 21 is butted against the upper movable pipe fitting 22, the limit rubber ring 23 can be inserted into the inner part of the hollow sandwich layer of the lower movable pipe fitting 21, so as to support and reinforce the lower movable pipe fitting 21. The limit rubber ring 23 can play a certain role in butt joint limit, ensuring the stability of the butt joint between the lower movable pipe fitting 21 and the upper movable pipe fitting 22. The hollow sandwich layers of the lower movable pipe fitting 21 and the upper movable pipe fitting 22 can, to a certain extent, increase the structural stability, reduce the influence of external pressure on the pipeline, thereby extending the service life of the pipeline. The hollow sandwich layer can also play a buffering role, reducing the damage probability of the pipeline when it is impacted or vibrated. At the same time, by arranging the hollow sandwich layers inside the lower movable pipe fitting 21 and the upper movable pipe fitting 22, the amount of material used can be reduced on the premise of ensuring performance, thereby reducing costs.

[0039] Working principle: As shown in the attached Figures 2-5 figure, during the use process, when in use, the left connecting pipe 1, the movable sleeve 2, and the right connecting pipe 3 form a pipe group. During assembly, multiple pipe groups can be successively sleeved on the surface of the cable. When assembling, by simultaneously opening the upper right cover pipe 31, the upper movable pipe fitting 22, and the upper left cover pipe 11, the cable is placed into the inner parts of the lower right cover pipe 32, the lower movable pipe fitting 21, and the lower left cover pipe 12 from the opening. After placing multiple pipe groups in sequence, the upper right cover pipe 31, the upper movable pipe fitting 22, and the upper left cover pipe 11 are simultaneously pressed down to be correspondingly closed with the lower right cover pipe 32, the lower movable pipe fitting 21, and the lower left cover pipe 12. At this time, the upper right cover pipe 31 fits with the lower right cover pipe 32, the upper left cover pipe 11 fits with the lower left cover pipe 12, the two second backing plates 33 fit with the two first backing plates 13, and are fixed by the second locking pin 34 and the first locking pin 14. The second locking pin 34 and the first locking pin 14 have the same structure. Taking the first locking pin 14 as an example, the two column ends of the first locking pin 14 penetrate through the through holes of the two first backing plates 13, so that the rubber ring outside the column ends is reversely buckled and fits on the bottom end of the lower first backing plate 13, thus facilitating the butt joint and fixation of the upper left cover pipe 11 and the lower left cover pipe 12; Secondly, as shown in the attached Figures 3-4 figure, the two pipe groups are brought closer, so that the right connecting pipe 3 of the left pipe group is butted against the left connecting pipe 1 of the right pipe group on the right, realizing the end-to-end connection of the two pipe groups. During butt joint, by making the indicating plates 35 of the left and right pipe groups correspond, the clamping block is inserted into the card slots of the upper right cover pipe 31 and the lower right cover pipe 32, and the upper left cover pipe 11 and the lower left cover pipe 12 after butt joint are held and rotated, and then the clamping block 17 is controlled to move and be clamped in the card slots of the upper right cover pipe 31 and the lower right cover pipe 32; Finally, as shown in the attached Figures 5-7As shown, the hoop A 41 and the hoop B 42 are buckled at the connection of the two pipe groups, rotated and embedded into the card slot of the fixed seat 44 through the movable shaft 43, and the locking block 46 is pushed by the elastic force of the return spring 45, so that the locking block 46 is inserted into the card slot at the end of the movable shaft 43, ensuring the stability of the butt joint between the hoop A 41 and the hoop B 42, thereby strengthening the connection of the two pipe groups.

[0040] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A split combined power cable protection sleeve, characterized in that The invention comprises a left pipe (1), the right side of the left pipe (1) is connected to a movable sleeve (2), and the right side of the movable sleeve (2) is provided with a right pipe (3), the left pipe (1), the movable sleeve (2) and the right pipe (3) are combined to form a pipe group, and the two left and right pipe groups are butt-jointed and fixed by a reinforcing component (4), the left pipe (1) comprises a left upper cover pipe (11), the bottom end of the left upper cover pipe (11) is buckled with a left lower cover pipe (12), and the left upper cover pipe (11) is A first pad (13) is connected to the side of the left lower cover tube (12), and the two first pads (13) are fixed to each other by a first bayonet (14). The right connecting pipe (3) comprises a right upper cover tube (31), and the right lower cover tube (32) is buckled on the bottom end of the right upper cover tube (31). The sides of the right upper cover tube (31) and the right lower cover tube (32) are connected to second pads (33), and the two second pads (33) are fixed to each other by a second bayonet (34).

2. The split combined power cable sheath tube according to claim 1, characterized in that, The first bayonet (14) and the second bayonet (34) have the same structure. The first bayonet (14) and the second bayonet (34) are both composed of a horizontal plate end and two column ends. The column ends of the first bayonet (14) and the second bayonet (34) are provided with a plurality of rubber rings, and the rubber rings are in contact with and fit against the bottom surfaces of the first pad (13) and the second pad (33).

3. The split combined power cable protection sleeve according to claim 1, characterized in that, The left inner walls of the upper left cover tube (11) and the lower left cover tube (12) are connected to an inner rubber ring (16), and the inner walls of the inner rubber ring (16) are both inclined on the left and right sides.

4. The split combined power cable protection sleeve according to claim 3, characterized in that, A plurality of clamping blocks (17) are connected to the sides of the left upper cover tube (11) and the left lower cover tube (12), and clamping grooves adapted to the clamping blocks (17) are provided on the right sides of the right upper cover tube (31) and the right lower cover tube (32).

5. The split combined power cable protection sleeve according to claim 4, characterized in that, The surfaces of the left upper cover tube (11) and the left lower cover tube (12) are connected to a first limiting ring (15); the outer sides of the right upper cover tube (31) and the right lower cover tube (32) are connected to a second limiting ring (36); the reinforcement component (4) comprises a combined clamping ring A (41) and a clamping ring B (42); the clamping ring A (41) and the clamping ring B (42) are buckled on the outer sides of the first limiting ring (15) and the second limiting ring (36).

6. The split combined power cable sheath tube according to claim 5, characterized in that, A movable shaft (43) is movably mounted on the surface of the clamp ring B (42), and the end of the movable shaft (43) is inserted into the interior of the fixing seat (44) through a groove, a locking block (46) is inserted into the interior of the groove of the fixing seat (44) through a through groove, and a return spring (45) is connected to the bottom end of the locking block (46), the bottom end of the return spring (45) is connected and fixed to the inner end surface of the through groove of the fixing seat (44), and the top end of the locking block (46) is inserted into the interior of the movable shaft (43) through a slot.

7. The split combined power cable protection sleeve according to claim 6, characterized in that, The locking block (46) has an inclined surface on its surface, the end of the movable shaft (43) is inclined toward the locking block (46), and the movable shaft (43) and the top of the fixing seat (44) are provided with a toggle groove adapted to the locking block (46).

8. The split-type combined power cable protection sleeve according to claim 1, wherein, The movable sleeve (2) includes a lower movable pipe fitting (21) and an upper movable pipe fitting (22). The left and right sides of the lower movable pipe fitting (21) are respectively connected and fixed to the upper left cover pipe (11) and the upper right cover pipe (31). The left and right sides of the upper movable pipe fitting (22) are respectively connected and fixed to the lower left cover pipe (12) and the lower right cover pipe (32). Corresponding indicating plates (35) are connected to the surfaces of the upper right cover pipe (31), the lower right cover pipe (32), the upper left cover pipe (11), and the lower left cover pipe (12).

9. The split-type combined power cable protection sleeve according to claim 8, wherein, An air sandwich layer is provided inside both the lower movable pipe fitting (21) and the upper movable pipe fitting (22). A number of limiting rubber rings (23) are connected to one side of the upper movable pipe fitting (22), and the limiting rubber rings (23) are inserted into the air sandwich layer inside the lower movable pipe fitting (21).

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