A high-strength protective pipe body for power pipe maintenance and its installation method

Abstract

The present invention discloses a high-strength protective pipe body for power pipe maintenance and its installation method; the present invention includes an upper connection ring and a lower connection ring that can be spliced with the upper connection ring, an upper splicing pipe and a lower splicing pipe that can be spliced with the upper splicing pipe, an upper fixing ring and a lower fixing ring that can be spliced with the upper splicing pipe, and an inner support block; arc-shaped grooves are provided at the splicing ends of the upper connection ring and the lower connection ring, and the upper splicing pipe and the lower splicing pipe; insertion blocks are provided at the insertion ends of the upper fixing ring and the lower fixing ring, and the upper splicing pipe and the lower splicing pipe; buffer blocks are provided at the protection ends of the upper connection ring and the lower connection ring, the upper splicing pipe and the lower splicing pipe, and the upper fixing ring and the lower fixing ring. The overall connection strength is increased through internal and external clamping fixation, the operation is convenient, and a single person can complete the operation without a large number of external tools. Moreover, the connection strength is relatively high and the protection performance is relatively strong. Through three sealing structures, the overall environment inside and outside the device can be better isolated, and the internal circuit of the device can be better protected.

Description

Technical Field

[0001] The present invention relates to the technical field of maintenance protection pipes, and specifically relates to a high-strength protection pipe for power pipe maintenance and its installation method. Background Technique

[0002] Power pipes are usually products with hot dip plastic coating using PE (modified polyethylene) or internal and external coating using epoxy resin, and have excellent corrosion resistance. At the same time, the coating itself also has good electrical insulation and will not cause electrical corrosion. It has low water absorption, high mechanical strength, small friction coefficient, and can achieve the purpose of long-term use. It can also effectively prevent the damage of plant roots and soil environmental stress, etc.

[0003] Due to its advantages of relatively high strength, low cost, and relatively convenient installation, power pipes are usually used for protection when laying power lines. During the long-term protection process, problems such as damage to power pipes may occur.

[0004] However, there are some problems in the current maintenance process of power pipes. 1. When repairing, the method of hot melting is used for pipe splicing, and the splicing strength is relatively low, especially at the interface. It is extremely easy to be eroded when buried underground for a long time, resulting in secondary damage to the power pipe. 2. During the overall maintenance, especially for the maintenance of power pipes with a relatively long length, the maintenance difficulty is relatively large, and a large number of external tools are required to complete the maintenance. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-strength protection pipe for power pipe maintenance and its installation method to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: including an upper connection ring and a lower connection ring that can be spliced with the upper connection ring, an upper splicing pipe and a lower splicing pipe that can be spliced with the upper splicing pipe, an upper fixing ring and a lower fixing ring that can be spliced with the upper splicing pipe, and an inner support block;

[0007] Arc-shaped grooves are provided at the splicing ends of the upper connection ring and the lower connection ring, the upper splicing pipe and the lower splicing pipe. Insertion blocks are provided at the insertion ends of the upper fixing ring and the lower fixing ring, and the upper splicing pipe and the lower splicing pipe. Buffer blocks are provided at the protection ends of the upper connection ring and the lower connection ring, the upper splicing pipe and the lower splicing pipe, and the upper fixing ring and the lower fixing ring.

[0008] Preferably, a plurality of insertion slots are arranged in a circumferential array on the surface of the arc-shaped groove, and arc-shaped limiting grooves are provided on the surface of the insertion slots.

[0009] Preferably, a plurality of protruding blocks are arranged in a circumferential array on the surface of the insertion block.

[0010] Preferably, a limiting groove is vertically arranged at the intersection of the plugging groove and the arc-shaped limiting groove.

[0011] Preferably, a plurality of threaded grooves are arranged in a circumferential array on the surfaces of the upper connecting ring, the lower connecting ring, the upper fixing ring and the lower fixing ring.

[0012] Preferably, a plurality of fixing holes are arranged at positions corresponding to the threaded grooves on the surface of the inner support block.

[0013] Preferably, a fitting film is arranged at the fixed end of the inner support block.

[0014] Preferably, rubber pads are arranged at the sealing ends of the upper connecting ring, the lower connecting ring, the upper fixing ring and the lower fixing ring, and sealing gaskets are arranged on the surfaces of the rubber pads.

[0015] Preferably, locking rods are arranged on the surfaces of the upper connecting ring, the upper splicing pipe and the upper fixing ring, and sliding locking grooves are arranged at positions corresponding to the locking rods on the surfaces of the lower connecting ring, the lower splicing pipe and the lower fixing ring.

[0016] Based on an installation method of a high-strength protective pipe body for power pipe maintenance, it includes the following steps:

[0017] Step 1. Preparation: Cut off the part to be repaired, polish the cut end smoothly, and insert the inner support block into the inner wall of the pipe at the cut end. During the insertion process, the two fitting films will squeeze the internal wires, and under the action of elasticity, they will wrap around its surface to form a barrier. Similarly, install the other end of the power pipe to prevent sediment from entering the inside of the power pipe during construction;

[0018] Step 2. Connection: Drill holes at the positions of the fixing holes of the power pipe, align the limiting grooves on the surfaces of the upper connecting ring, the lower connecting ring, the upper fixing ring and the lower fixing ring with the starting hole positions for fitting, and insert the locking rods on the surfaces of the upper connecting ring and the upper fixing ring into the sliding locking grooves of the lower connecting ring and the lower fixing ring and slide to complete the splicing;

[0019] Step 3. Sealing: Connect the inner support block, the upper connecting ring, the lower connecting ring, the upper fixing ring and the lower fixing ring through bolts. During the connection process, the bolts continuously squeeze the rubber pads and the sealing gaskets to complete the sealing, and fully unfold the deformation film to make it fit the surface of the power pipe;

[0020] Step 4. Assembly: Select the corresponding number of upper splicing pipes and lower splicing pipes according to the repair length. Place the line in the upper splicing pipe and the lower splicing pipe. When splicing the upper splicing pipe and the lower splicing pipe, insert the locking rod on the upper splicing pipe into the sliding locking groove and slide to complete the splicing of the upper splicing pipe and the lower splicing pipe. When splicing multiple groups of upper splicing pipes and lower splicing pipes, insert the protruding block on the plug block at the surface plug-in end of one group into the plug-in groove on the arc-shaped groove at the splicing end of another group, and rotate to make the plug block enter the arc-shaped limiting groove. Insert the sealing block into the limiting groove to complete the connection. Repeat the above operation to connect the upper splicing pipe and the lower splicing pipe splicing groups to the upper connection ring, the lower connection ring, the upper fixing ring and the lower fixing ring respectively;

[0021] Step 5. Secondary Sealing: Apply glue to the interface for secondary sealing.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The overall installation is relatively convenient, without the need for a large number of external tools. Only by connecting the inner support block, the upper connection ring, the lower connection ring, the upper fixing ring and the lower fixing ring with bolts can the connection of the power pipe orifice be completed. The internal and external clamping type fixation increases the overall connection strength;

[0024] 2. The overall length of the device can be adjusted according to the length that needs to be repaired. When splicing, select the corresponding number of upper splicing pipes and lower splicing pipes according to the repair length. Place the line in the upper splicing pipe and the lower splicing pipe. When splicing the upper splicing pipe and the lower splicing pipe, insert the locking rod on the upper splicing pipe into the sliding locking groove and slide to complete the splicing of the upper splicing pipe and the lower splicing pipe. When splicing multiple groups of upper splicing pipes and lower splicing pipes, insert the protruding block on the plug block at the surface plug-in end of one group into the plug-in groove on the arc-shaped groove at the splicing end of another group, and rotate to make the plug block enter the arc-shaped limiting groove. Insert the sealing block into the limiting groove to complete the connection. Repeat the above operation to connect the upper splicing pipe and the lower splicing pipe splicing groups to the upper connection ring, the lower connection ring, the upper fixing ring and the lower fixing ring respectively. The overall adopts a splicing type assembly method. The upper connection ring, the lower connection ring, the upper fixing ring and the lower fixing ring limit the horizontal movement of the upper splicing pipe and the lower splicing pipe to ensure the firm connection between the locking rod and the sliding locking groove. And through the mutual cooperation of multiple groups of arc-shaped limiting grooves and sealing blocks, the whole is connected in pairs to ensure the connection strength. The operation is convenient, without the need for a large number of external tools, and can be completed by a single person. Moreover, the connection strength is relatively high and the protection performance is relatively strong;

[0025] 3. The elasticity of the deformation film increases the contact area between the whole and the power tube, increasing the sealing length. Rubber sheets are wrapped on the surfaces of the insertion block, arc-shaped groove, arc-shaped limiting groove, locking rod, and sliding locking groove, increasing the firmness and the sealing length during the extrusion process, thereby enhancing the sealing performance. Additionally, bolts connect the inner support block, upper connecting ring, lower connecting ring, upper fixing ring, and lower fixing ring. During the connection process, the bolts continuously squeeze the rubber gasket and the sealing gasket to complete the sealing, further enhancing the sealing performance. After the connection, the interface is coated with glue for secondary sealing. Through these three sealing structures, the whole can better isolate the internal and external environments of the device and better protect the internal circuit of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a schematic diagram of the overall structure of a high-strength protective pipe body and its installation method for power pipe maintenance according to the present invention;

[0027] Figure 2 FIG. is a schematic diagram of the structure of the inner support block of a high-strength protective pipe body and its installation method for power pipe maintenance according to the present invention;

[0028] Figure 3 FIG. is a schematic diagram of the internal structure of the insertion slot and the arc-shaped limiting slot of a high-strength protective pipe body and its installation method for power pipe maintenance according to the present invention;

[0029] Figure 4 FIG. is a schematic diagram of the structure of the upper connecting ring and the lower connecting ring of a high-strength protective pipe body and its installation method for power pipe maintenance according to the present invention;

[0030] Figure 5 FIG. is a schematic diagram of the structure of the locking rod of a high-strength protective pipe body and its installation method for power pipe maintenance according to the present invention.

[0031] In the figure: 1. Upper connecting ring; 2. Lower connecting ring; 3. Upper splicing pipe; 4. Lower splicing pipe; 5. Upper fixing ring; 6. Lower fixing ring; 7. Insertion block; 8. Protruding block; 9. Arc-shaped groove; 10. Limiting groove; 11. Insertion slot; 12. Arc-shaped limiting groove; 13. Threaded groove; 14. Deformation film; 15. Rubber gasket; 16. Sealing gasket; 17. Inner support block; 18. Fixed hole; 19. Fitting film; 20. Sliding locking groove; 21. Buffer block; 22. Locking rod. DETAILED DESCRIPTION OF THE INVENTION

[0032] To make the technical means, creative features, achieved purposes, and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0033] Please refer to Figures 1-5As shown in the figure, a high-strength protective pipe body for power pipe maintenance and its installation method include an upper connection ring 1 and a lower connection ring 2 that can be spliced with the upper connection ring 1, an upper splicing pipe 3 and a lower splicing pipe 4 that can be spliced with the upper splicing pipe 3, an upper fixing ring 5 and a lower fixing ring 6 that can be spliced with the upper splicing pipe 3, and an inner support block 17;

[0034] The splicing ends of the upper connection ring 1 and the lower connection ring 2, as well as the upper splicing pipe 3 and the lower splicing pipe 4, are provided with arc-shaped grooves 9. The insertion ends of the upper fixing ring 5 and the lower fixing ring 6, as well as the upper splicing pipe 3 and the lower splicing pipe 4, are provided with insertion blocks 7. The protection ends of the upper connection ring 1 and the lower connection ring 2, the upper splicing pipe 3 and the lower splicing pipe 4, and the upper fixing ring 5 and the lower fixing ring 6 are provided with buffer blocks 21.

[0035] Specifically, a plurality of insertion slots 11 are arranged on the surface of the arc-shaped groove 9 in a circumferential array. An arc-shaped limiting slot 12 is arranged on the surface of the insertion slot 11; by arranging the arc-shaped limiting slot 12 on the surface of the insertion slot 11, the arc-shaped limiting slot 12 can prevent the protruding block 8 from moving along the direction of the insertion slot 11.

[0036] Specifically, a plurality of protruding blocks 8 are arranged on the surface of the insertion block 7 in a circumferential array; by inserting the protruding block 8 into the insertion slot 11 and rotating it to the arc-shaped limiting slot 12, the locking is completed.

[0037] Specifically, a limiting slot 10 is vertically arranged at the intersection of the insertion slot 11 and the arc-shaped limiting slot 12; by inserting a sealing block into the limiting slot 10 to block the rotation of the protruding block 8, the arc-shaped limiting slot 12 is assisted in locking the protruding block 8.

[0038] Specifically, a plurality of threaded grooves 13 are arranged on the surfaces of the upper connection ring 1 and the lower connection ring 2, as well as the upper fixing ring 5 and the lower fixing ring 6 in a circumferential array; the internal and external connections are completed by inserting bolts through the threaded grooves 13.

[0039] Specifically, a plurality of fixing holes 18 are arranged at positions on the surface of the inner support block 17 corresponding to the threaded grooves 13; a clamping type of fixation is formed through the mutual cooperation of the fixing holes 18 and the threaded grooves 13, increasing the fixing strength.

[0040] Specifically, a fitting film 19 is arranged at the fixed end of the inner support block 17; by virtue of the elasticity of the fitting film 19, it is fully unfolded and attached to the surface of the power pipe to form a relatively long sealing length, increasing the sealing performance.

[0041] Specifically, rubber pads 15 are provided at the sealing ends of the upper connecting ring 1, the lower connecting ring 2, the upper fixing ring 5 and the lower fixing ring 6, and sealing gaskets 16 are provided on the surfaces of the rubber pads 15; the rubber pads 15 provided at the sealing ends of the upper connecting ring 1, the lower connecting ring 2, the upper fixing ring 5 and the lower fixing ring 6 are deformed by mutual extrusion with the power pipe, and under the action of elastic force, the threaded connection becomes tighter, and the sealing performance of the connection is increased under the action of the sealing gasket 16.

[0042] Specifically, locking rods 22 are provided on the surfaces of the upper connecting ring 1, the upper splicing pipe 3 and the upper fixing ring 5, and sliding locking grooves 20 are provided at positions corresponding to the locking rods 22 on the surfaces of the lower connecting ring 2, the lower splicing pipe 4 and the lower fixing ring 6; the connection can be completed by inserting the locking rods 22 into the sliding locking grooves 20 and sliding.

[0043] An installation method for a high-strength protective pipe body for power pipe maintenance according to any one of claims 1-9, comprising the following steps:

[0044] Step 1. Preparation: Cut off the part to be repaired, polish the fracture surface flat, and insert the inner support block 17 into the inner wall of the pipe at the fracture surface. During the insertion process, the two fitting films 19 will squeeze the internal circuit, and under the action of elasticity, wrap around its surface to form a barrier. Similarly, install the other end of the power pipe to prevent sediment from entering the interior of the power pipe during construction;

[0045] Step 2. Connection: Drill holes at the positions of the fixing holes 18 of the power pipe, align the limiting grooves 10 on the surfaces of the upper connecting ring 1, the lower connecting ring 2, the upper fixing ring 5 and the lower fixing ring 6 with the starting hole positions for fitting, and insert the locking rods 22 on the surfaces of the upper connecting ring 1 and the upper fixing ring 5 into the sliding locking grooves 20 of the lower connecting ring 2 and the lower fixing ring 6 and slide to complete the splicing;

[0046] Step 3. Sealing: Connect the inner support block 17, the upper connecting ring 1, the lower connecting ring 2, the upper fixing ring 5 and the lower fixing ring 6 through bolts. During the connection process, the bolts continuously squeeze the rubber pads 15 and the sealing gaskets 16 to complete the sealing, and fully unfold the deformation film 14 to make it fit the surface of the power pipe;

[0047] Step 4. Splicing: Select corresponding numbers of upper splicing pipes 3 and lower splicing pipes 4 according to the repair length. Place the line in the upper splicing pipes 3 and lower splicing pipes 4. When splicing the upper splicing pipes 3 and lower splicing pipes 4, insert the locking rod 22 on the upper splicing pipe 3 into the sliding locking groove 20 and slide to complete the splicing of the upper splicing pipe 3 and the lower splicing pipe 4. When splicing multiple groups of upper splicing pipes 3 and lower splicing pipes 4, insert the protruding block 8 on the plug block 7 at the surface plug end of one group into the plug slot 11 on the arc-shaped groove 9 at the splicing end of another group, and rotate to make the plug block 7 enter the arc-shaped limiting groove 12. Insert the sealing block into the limiting groove 10 to complete the connection. Repeat the above operations to connect the groups of upper splicing pipes 3 and lower splicing pipes 4 to the upper connection ring 1 and the lower connection ring 2, as well as the upper fixing ring 5 and the lower fixing ring 6 respectively;

[0048] Step 5. Secondary sealing: Apply glue to the interface for secondary sealing.

[0049] The above shows and describes 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. The above embodiments and the descriptions in the specification only illustrate the principles 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 these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength protective pipe body for power pipe maintenance, characterized in that: It includes an upper connecting ring (1) and a lower connecting ring (2) that can be spliced with the upper connecting ring (1), an upper splicing pipe (3) and a lower splicing pipe (4) that can be spliced with the upper splicing pipe (3), an upper fixing ring (5) and a lower fixing ring (6) that can be spliced with the upper splicing pipe (3), and an inner support block (17). Arc-shaped grooves (9) are provided at the splicing ends of the upper connecting ring (1) and the lower connecting ring (2), and the upper splicing pipe (3) and the lower splicing pipe (4). Plug-in blocks (7) are provided at the insertion ends of the upper fixing ring (5) and the lower fixing ring (6), and the upper splicing pipe (3) and the lower splicing pipe (4). Buffer blocks (21) are provided at the protection ends of the upper connecting ring (1) and the lower connecting ring (2), the upper splicing pipe (3) and the lower splicing pipe (4), and the upper fixing ring (5) and the lower fixing ring (6). A plurality of threaded grooves (13) are arranged in a circumferential array on the surfaces of the upper connecting ring (1) and the lower connecting ring (2), and the upper fixing ring (5) and the lower fixing ring (6). A plurality of fixing holes (18) are provided at positions on the surface of the inner support block (17) corresponding to the threaded grooves (13). A fitting film (19) is provided at the fixed end of the inner support block (17).

2. The high-strength protective pipe body for power pipe maintenance according to claim 1, wherein: A plurality of plug-in grooves (11) are arranged in a circumferential array on the surface of the arc-shaped groove (9), and arc-shaped limiting grooves (12) are provided on the surface of the plug-in grooves (11).

3. A high-strength protective pipe body for power pipe maintenance according to claim 1, characterized in that: A plurality of protruding blocks (8) are arranged in a circumferential array on the surface of the plug-in block (7).

4. A high-strength protective pipe body for power pipe maintenance according to claim 2, characterized in that: A limiting groove (10) is vertically provided at the intersection of the plug-in groove (11) and the arc-shaped limiting groove (12).

5. A high-strength protective pipe body for power pipe maintenance according to claim 1, characterized in that: Rubber pads (15) are provided at the sealing ends of the upper connecting ring (1) and the lower connecting ring (2), and the upper fixing ring (5) and the lower fixing ring (6). Sealing gaskets (16) are provided on the surfaces of the rubber pads (15).

6. The high-strength protective pipe body for power pipe maintenance according to claim 1, characterized in that: Locking rods (22) are provided on the surfaces of the upper connecting ring (1), the upper splicing pipe (3), and the upper fixing ring (5). Sliding locking grooves (20) are provided at positions on the surfaces of the lower connecting ring (2), the lower splicing pipe (4), and the lower fixing ring (6) corresponding to the locking rods (22).

7. The usage method of a high-strength protective pipe body for power pipe maintenance according to any one of claims 1-6, characterized in that: It includes the following steps: Step 1, Preparation: Cut the place to be repaired, polish the fracture surface flat, and insert the inner support block (17) into the inner wall of the pipeline at the fracture surface. During the insertion process, the two fitting films (19) will squeeze the internal wires, and under the action of elasticity, they will wrap around the surface to form a barrier. Similarly, install the other end of the power pipe to prevent sediment from entering the inside of the power pipe during construction. Step 2, Connection: Drill holes at the positions of the fixing holes (18) of the power pipe, align the limiting grooves (10) on the surfaces of the upper connecting ring (1) and the lower connecting ring (2), and the upper fixing ring (5) and the lower fixing ring (6) with the starting hole positions for fitting. Insert the locking rods (22) on the surfaces of the upper connecting ring (1) and the upper fixing ring (5) into the sliding locking grooves (20) of the lower connecting ring (2) and the lower fixing ring (6) and slide to complete the splicing. Step 3. Sealing: Connect the inner support block (17), upper connecting ring (1), lower connecting ring (2), upper fixing ring (5), and lower fixing ring (6) with bolts. During the connection process, the bolts continuously squeeze the rubber gasket (15) and the sealing gasket (16) to complete the sealing, and fully unfold the deformation film (14) to make it fit the surface of the power pipe; Step 4. Splicing: Select the corresponding number of upper splicing pipes (3) and lower splicing pipes (4) according to the repair length. Place the circuit in the upper splicing pipes (3) and lower splicing pipes (4). When splicing the upper splicing pipes (3) and lower splicing pipes (4), insert the locking rod (22) on the upper splicing pipe (3) into the sliding locking groove (20) and slide to complete the splicing of the upper splicing pipe (3) and the lower splicing pipe (4). When splicing multiple groups of upper splicing pipes (3) and lower splicing pipes (4), insert the protruding block (8) on the insertion block (7) at the insertion end on the surface of one group into the insertion slot (11) on the arc-shaped groove (9) at the splicing end of another group, and rotate to make the insertion block (7) enter the arc-shaped limiting groove (12). Insert the sealing block into the limiting groove (10) to complete the connection. Repeat the above operations to connect the groups of upper splicing pipes (3) and lower splicing pipes (4) to the upper connecting ring (1), lower connecting ring (2), upper fixing ring (5), and lower fixing ring (6) respectively; Step 5. Secondary Sealing: Apply glue to the interface for secondary sealing.

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