Pipeline repair device and pipeline repair method

Abstract

The present invention provides a pipeline repair device, including a plurality of detachably connected positioning rods, on which a push assembly, a repair pipe and a propulsion device are detachably sleeved in sequence, so as to realize the plugging and conveying of a plurality of repair pipes; a plurality of positioning holes are arranged on the positioning rod, and a fixing device is also clamped on the positioning rod, so as to realize the positioning of the positions of the push assembly and the propulsion device. The present invention can realize the plugging and conveying of a plurality of repair pipes through the push assembly and the propulsion device, thereby improving the maintenance efficiency of underground pipelines; by providing a push assembly with a conical head, the underground pipeline can be desilted while being repaired, thereby avoiding the situation where there are too many debris in the underground pipeline and resulting in poor maintenance effect; by providing a positioning rod with a positioning hole and a fixing device, the position of the push assembly and the propulsion device is fixed, thereby realizing the stable transportation of the repair pipe in the underground pipeline, thereby ensuring the maintenance quality of the underground pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline repair, and in particular to a pipeline repair device and a repair method thereof. Background Art

[0002] In recent years, urban construction in my country has been very rapid, and the construction speed of urban underground pipelines has also been getting faster and faster. However, with the increasing number of underground pipelines, the number of damaged underground pipelines has also increased. However, in the pipeline repair technology in the prior art, the repair pipeline is generally transported by stretching the repair pipeline, which makes the repair pipeline easy to be broken or fall off, resulting in waste of repair pipelines and increased maintenance workload; and the repair pipe after stretching is prone to tearing, resulting in poor sealing effect, resulting in leakage during the pipeline repair process, which increases the maintenance time, deteriorates the quality of the pipeline after repair, and reduces the maintenance efficiency. Summary of the invention

[0003] In view of this, the problem to be solved by the present invention is to provide a pipeline repair device which is easy to operate and will not cause damage to the repaired pipeline, and a repair method which is easy to operate and has a good repair effect.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a pipeline repair device, comprising a plurality of detachably connected positioning rods, on which a pushing assembly, a plurality of repair pipes and a propulsion device are detachably sleeved in sequence, for realizing the plugging and transportation of the plurality of repair pipes;

[0005] The positioning rod is provided with a plurality of positioning holes, and a fixing device matching the positioning holes is also clamped on the positioning rod to realize the positioning of the pushing component and the propulsion device.

[0006] A first support plate is arranged at one end of the propulsion device, a second support plate is arranged at the other end of the propulsion device, and the fixing device is arranged at the other side of the second support plate to fix the position of the propulsion device.

[0007] One end of the positioning rod is provided with a threaded rod, and the other end of the positioning rod is provided with a threaded groove matching the threaded rod.

[0008] A through hole matching the positioning rod is disposed at the middle position of the first supporting plate and the second supporting plate, so that the positioning rod can penetrate the first supporting plate and the second supporting plate.

[0009] Preferably, the repair tube comprises a tube body, a first connecting end is provided at one end of the tube body, and a second connecting end is provided at the other end of the tube body, the first connecting end comprises a first connecting end body and a clamping portion and a sealing portion provided on the outer wall of the first connecting end body, the second connecting end comprises a second connecting end body and a groove provided on the inner side of the second connecting end body, the first connecting end matches the second connecting end to achieve clamping connection between the tube bodies;

[0010] Preferably, an angle groove is formed between the clamping portion and the first connecting end body;

[0011] Preferably, the groove includes a sealing groove matching the first connection end body and an anti-slip groove matching the clamping portion, and a corner block is formed between the sealing groove and the anti-slip groove, and the corner block matches the corner groove to achieve a stable connection between the first connection end and the second connection end;

[0012] Preferably, the clamping portion is a protrusion provided on one end of the outer wall of the main body of the first connecting end, and the cross section of the protrusion is dovetail-shaped;

[0013] Preferably, the sealing portion comprises an annular groove arranged on the outer wall of the main body of the first connecting end and a sealing ring arranged outside the annular groove, and the sealing ring matches the annular groove;

[0014] Preferably, the inner diameter of the first connection end body is the same as the outer diameter of the tube body, the outer diameter of the second connection end body is the same as the outer diameter of the tube body, and the first connection end, the second connection end and the tube body are an integrated structure.

[0015] Preferably, the length of the first connection end body is longer than that of the second connection end body, and an adhesive device is applied at the connection between the first connection end and the second connection end of the two tube bodies to achieve fixed connection of the two tube bodies.

[0016] Preferably, the length of the tube is 50 cm.

[0017] Preferably, the pushing assembly includes a conical head, on which a plurality of silt removal holes are evenly arranged, an inner sleeve is fixedly arranged on one side of the conical head, three limiting holes are arranged on the inner sleeve, and the outer diameter of the inner sleeve matches the inner diameter of the repair tube, which is used for clamping between the pushing assembly and the repair tube.

[0018] Preferably, the pipeline repair device also includes an outer sleeve, which matches the inner sleeve, and the outer diameter and inner diameter of the outer sleeve are the same as those of the repair pipe. One end of the outer sleeve is provided with a third connection end with the same structure as the second connection end of the repair pipe, which is used to match the first connection end of the repair pipe. One end of the outer sleeve is also provided with three limiting holes that match the position and size of the inner sleeve. The pipeline repair device also includes a limiting rod that matches the limiting hole, which is used to clamp the limiting hole to achieve fixation of the outer sleeve and the inner sleeve.

[0019] The outer diameter of the first supporting plate is larger than the outer diameter of the repair tube, and a plurality of repair tube limiting rods are evenly arranged on the outer side of the first supporting plate to limit the position of the repair tube.

[0020] The propulsion device comprises two discs with the same structure and a plurality of hydraulic cylinders arranged between the two discs, and two ends of the hydraulic cylinders are respectively fixedly connected to the two discs.

[0021] One side of the disc is provided with an opening matching the outer diameter of the positioning rod.

[0022] The outer diameter of the second supporting plate is greater than the outer diameter of the disc, and a plurality of disc limiting rods are evenly arranged on the outer side of the second supporting plate to limit the position of the disc.

[0023] Preferably, the fixing device includes a pushing component fixing component and a propulsion fixing component, the pushing component fixing component is an internally threaded fixing rod arranged inside the pushing component, the internally threaded fixing rod is fixedly connected to the other end of the pushing component, the thread of the internally threaded fixing rod matches the thread of the positioning rod, and is used to achieve fixation between the pushing component and the positioning rod, the propulsion fixing component includes a fixing rod matching the positioning hole and a handle fixedly arranged at one end of the fixing rod.

[0024] A repair method for a pipeline repair device comprises the following steps:

[0025] S1: Assemble the pipeline repair device and two repair pipes;

[0026] S2: The pipeline repair device realizes the plugging of the repair pipes and transports the pipeline repair device with the repair pipes installed into the underground pipeline to be repaired;

[0027] S3: Assembling another repair pipe with the pipeline repair device;

[0028] S4: looping steps S2 and S3 until the length of the mutually plugged repair pipes matches the length of the underground pipeline to be repaired;

[0029] S5: Pour repair slurry into the space between the inner wall of the underground pipeline and the outer wall of the repair pipe;

[0030] S6: After the repair slurry has solidified, the pipeline repair device is disassembled to complete the repair of the underground pipeline.

[0031] Preferably, step S1 includes threading the internal thread fixing rod of the pushing assembly with a positioning rod, sleeved the first connecting end of a repair tube on the inner sleeve of the pushing assembly, sleeved a sealing ring at the annular groove of the first connecting end of one end of the tube body of the second repair tube, connected the first connecting end of the second repair tube with the second connecting end of the tube body of the first repair tube, matched the first support plate with the second connecting end position of the second repair tube, matched the repair tube limiting rod of the first support plate with the repair tube to limit the position of the repair tube, and then matched the openings on the two discs with the positioning rod to sleeve the two discs on the positioning rod, matched the disc limiting rod on the second support plate with the disc to limit the position of the disc, and inserted the fixing rod into the positioning hole. At this time, the position of the positioning rod and the propulsion device is fixed, thereby fixing the position of the repair tube;

[0032] Preferably, step S2 includes extending the output end of the hydraulic cylinder so that the first repair tube and the second repair tube located in the pushing assembly and the propulsion device are plugged into each other. At this time, the protrusion of the clamping part matches the anti-slip groove, and the corner block matches the corner groove to achieve the plugging of the first repair tube and the second repair tube. The adhesive device is applied to the connection between the first connecting end and the second connecting end to achieve the fixed connection of the two repair tubes. After the repair tubes are plugged in, the repair tubes are transported into the underground pipeline to be repaired to complete the transportation and plugging of the repair tubes.

[0033] Preferably, step S6 includes retracting the output end of the hydraulic cylinder after the repair slurry has solidified, pulling the fixing rod out of the positioning hole through the handle, removing the second support plate, the disc and the first support plate from the positioning rod, and spirally pulling the positioning rod out from one end of the pushing assembly in sequence to achieve disassembly of the pipeline repair propulsion device.

[0034] The advantages and positive effects of the present invention are:

[0035] (1) The present invention realizes the plugging and transportation of multiple repair pipes through the pushing assembly and the propulsion device, thereby improving the maintenance efficiency of underground pipelines.

[0036] (2) The present invention provides a pushing assembly with a conical head, thereby achieving dredging of the underground pipeline during the repair process, thereby avoiding the situation where excessive debris in the underground pipeline leads to poor repair effect.

[0037] (3) The present invention achieves position fixation of the pushing assembly and the propulsion device by providing a positioning rod with a positioning hole and a fixing device, thereby achieving stable transportation of the repair pipe in the underground pipeline and ensuring the repair quality of the underground pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0039] Figure 1 It is a schematic diagram of the overall structure of a pipeline repair device of the present invention;

[0040] Figure 2 It is a structural schematic diagram of a pushing device of a pipeline repair device of the present invention;

[0041] Figure 3 It is a schematic diagram of a repair pipe plugging state of a pipeline repair device of the present invention;

[0042] Figure 4 yes Figure 1 A partial enlarged view of A;

[0043] Figure 5 It is a structural schematic diagram of a repair pipe of a pipeline repair device of the present invention;

[0044] Figure 6 is a cross-sectional view of a repair pipe of a pipeline repair device of the present invention;

[0045] Figure 7 It is a cross-sectional view of the assembly of a first connection end and a second connection end of a repair pipe of a pipeline repair device of the present invention;

[0046] Figure 8 It is a flow chart from S1 to S6 of a repair method of a pipeline repair device of the present invention;

[0047] In the figure:

[0048] 1, positioning rod, 101, positioning hole, 102, threaded rod, 103, threaded groove;

[0049] 2. Push component;

[0050] 3, propulsion device, 301, disc, 302, hydraulic cylinder, 303, opening;

[0051] 4, fixing device, 401, pushing fixing assembly, 4011, fixing rod, 4012, handle, 402, pushing assembly fixing assembly;

[0052] 5, repair tube; 501, tube body, 502, second connection end, 5021, second connection end body, 5022, groove, 5023, corner block, 503, first connection end, 5031, first connection end body, 5032, clamping part, 5033, sealing part, 5034, corner groove, 504, bonding device;

[0053] 6, first support plate, 601, repair pipe limit rod;

[0054] 7, second support plate, 701, disc limiting rod;

[0055] 8, outer sleeve, 801, third connection end. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0059] like Figures 1 to 4 As shown, the present invention provides a pipeline repair device, comprising a plurality of detachably connected positioning rods 1, on which a pushing assembly 2, a plurality of repair pipes 5 and a propulsion device 3 are detachably sleeved in sequence, for realizing the plugging and transportation of the plurality of repair pipes 5;

[0060] The positioning rod 1 is provided with a plurality of positioning holes 101 , and the positioning rod 1 is also clamped with a fixing device 4 matching the positioning holes 101 for realizing the positioning of the pushing assembly 2 and the propulsion device 3 .

[0061] A first support plate 6 is disposed at one end of the propulsion device 3 , a second support plate 7 is disposed at the other end of the propulsion device 3 , and the fixing device 4 is disposed at the other side of the second support plate 7 for fixing the position of the propulsion device 3 .

[0062] A threaded rod 102 is disposed at one end of the positioning rod 1 , and a threaded groove 103 matching the threaded rod 102 is disposed at the other end of the positioning rod 1 .

[0063] A through hole matching the positioning rod 1 is disposed at the middle position of the first supporting plate 6 and the second supporting plate 7 , so that the positioning rod 1 can penetrate through the first supporting plate 6 and the second supporting plate 7 .

[0064] The outer diameter of the first support plate 6 is greater than the outer diameter of the repair tube 5 .

[0065] A pipeline repair device of the present invention is used for plugging and conveying a repair pipe 5 during the repair process of an underground pipeline. In the actual working process, Figures 1 to 4 As shown, each positioning rod 1 is threadedly connected, and a plurality of repair tubes 5 are sequentially arranged between the pushing assembly 2 and the propulsion device 3 to realize the plugging of the repair tube 5. The fixing device 4 realizes the position fixation of the positioning rod 1, the pushing assembly 2 and the propulsion device 3, avoiding the sliding of the pushing assembly 2 and the propulsion device 3 on the positioning rod 1, so that the plugging and transportation of a plurality of repair tubes 5 can be realized through the positioning rod 1, the pushing assembly 2 and the propulsion device 3, avoiding the problem in the prior art that the repair pipe needs to be stretched to realize the transportation of the repair pipe, which makes the repair pipe easy to be pulled off or fall off.

[0066] Furthermore, if Figures 5 to 7 As shown, in the embodiment, the repair tube 5 includes a tube body 501, one end of the tube body 501 is provided with a first connection end 503, and the other end of the tube body 501 is provided with a second connection end 502, the first connection end 503 includes a first connection end body 5031 and a clamping portion 5032 and a sealing portion 5033 arranged on the outer wall of the first connection end body 5031, the second connection end 502 includes a second connection end body 5021 and a groove 5022 arranged on the inner side of the second connection end body 5021, the first connection end 503 matches the second connection end 502, and is used to achieve clamping between the tube bodies 501;

[0067] In the embodiment, the first connection end 503, the second connection end 502 and the tube body 501 are an integrated structure;

[0068] In the actual work process, Figures 5 to 7 As shown, in the embodiment, the clamping portion 5032 of the first connecting end 503 matches the groove 5022 of the second connecting end 502 to achieve the clamping between the tube bodies 501, and the sealing portion 5033 of the first connecting end 503 matches the groove 5022 of the second connecting end 502 to achieve the sealing between the tube bodies 501, thereby avoiding the problem in the prior art that the repair tube 5 is stretched, resulting in poor sealing effect, which in turn leads to leakage during the pipeline repair process.

[0069] Further, in an embodiment, Figures 5 to 7 As shown, an angle groove 5034 is formed between the clamping portion 5032 and the first connecting end body 5031;

[0070] In the embodiment, the groove 5022 includes a sealing groove matching the first connection end body 5031 and an anti-slip groove matching the clamping portion 5032, and a corner block 5023 is formed between the sealing groove and the anti-slip groove, and the corner block 5023 matches the corner groove 5034 to achieve a stable connection between the first connection end 503 and the second connection end 502;

[0071] In the embodiment, the cross sections of the corner groove 5034 and the corner block 5023 are both at the same acute angle, so that the clamping portion 5032 and the anti-slip groove are clamped tightly.

[0072] In the embodiment, the clamping portion 5032 is a protrusion disposed on one end of the outer wall of the first connecting end body 5031, and the cross section of the protrusion is dovetail-shaped;

[0073] In an embodiment, the angle of the cross section of the protrusion is an acute angle, and the angle of the protrusion is smaller than the angle of the corner groove 5034, so that the protrusion and the anti-slip groove, the corner block 5023 and the corner groove 5034 are mutually constrained, thereby avoiding the falling off between the tube bodies 501 and making the connection between the tube bodies 501 more stable.

[0074] In an embodiment, the sealing portion 5033 includes an annular groove disposed on the outer wall of the first connecting end body 5031 and a sealing ring disposed outside the annular groove, and the sealing ring matches the annular groove;

[0075] In an embodiment, the inner diameter of the first connection end body 5031 is the same as the inner diameter of the tube body 501 , and the outer diameter of the second connection end body 5021 is the same as the outer diameter of the tube body 501 .

[0076] In the embodiment, the length of the first connection end body 5031 is longer than that of the second connection end body 5021 , and an adhesive device 504 is applied at the connection between the first connection end 503 and the second connection end 502 of the two tube bodies 501 to achieve fixed connection between the two tube bodies 501 .

[0077] In the actual work process, Figures 5 to 7 As shown, in the embodiment, the protrusion matches the anti-slip groove, the corner block 5023 matches the corner groove 5034, and the angle of the protrusion is smaller than the angle of the corner groove 5034, so that the protrusion and the anti-slip groove, the corner block 5023 and the corner groove 5034 are mutually constrained, making the connection between the tube body 501 more stable.

[0078] In the embodiment, the length of the tube 501 is 50 cm.

[0079] In actual working processes, existing underground pipelines are generally laid in meters. Therefore, when the length of the pipe body 501 is 50 cm, it is easier to repair such underground pipelines, and the pipe body 501 can be connected at will according to the length of the underground pipeline to achieve the repair length, thereby increasing the scope of application of the pipe body 501.

[0080] Furthermore, if Figure 1 , Figure 3 As shown, in the embodiment, the pushing component 2 includes a conical head, on which a plurality of silt removal holes are evenly arranged, an inner sleeve is fixedly arranged on one side of the conical head, three limiting holes are arranged on the inner sleeve, and the outer diameter of the inner sleeve matches the inner diameter of the repair tube 5, which is used for clamping between the pushing component 2 and the repair tube 5.

[0081] In an embodiment, the pipeline repair device also includes an outer sleeve 8, which matches the inner sleeve, and the outer diameter and inner diameter of the outer sleeve 8 are the same as those of the repair pipe 5. One end of the outer sleeve 8 is provided with a third connection end 801 with the same structure as the second connection end 502 of the repair pipe 5, which is used to match the first connection end 503 of the repair pipe 5. One end of the outer sleeve 8 is also provided with three limiting holes that match the position and size of the inner sleeve. The pipeline repair device also includes a limiting rod that matches the limiting hole, which is used to clamp the limiting hole to achieve the fixation of the outer sleeve 8 and the inner sleeve.

[0082] A plurality of repair pipe limiting rods 601 are evenly arranged on the outer side of the first supporting plate 6 to limit the position of the repair pipe 5 .

[0083] In the actual work process, Figure 1 , Figure 3 As shown, in the embodiment, the repair tube limiting rod 601 on the first support plate 6 is used to limit the position of the repair tube 5, and the inner sleeve on the pushing assembly 2 is clamped with the first connecting end 503 of the repair tube 5 to fix one end of the repair tube 5, thereby enabling the repair tube 5 to be transported, thereby avoiding the problem in the prior art that the repair tube needs to be stretched to achieve transportation, which makes the repair tube easy to be broken or fall off.

[0084] Furthermore, if Figure 2 As shown, the propulsion device 3 includes two discs 301 with the same structure and a plurality of hydraulic cylinders 302 arranged between the two discs 301 , and both ends of the hydraulic cylinders 302 are fixedly connected to the two discs 301 respectively.

[0085] One side of the disk 301 is provided with an opening 303 matching the outer diameter of the positioning rod 1 .

[0086] like Figure 1 , Figure 3 As shown, the outer diameter of the second supporting plate 7 is greater than the outer diameter of the disc 301 , and a plurality of disc limiting rods 701 are evenly arranged on the outer side of the second supporting plate 7 for limiting the position of the disc 301 .

[0087] In an embodiment, the fixing device 4 includes a pushing component fixing component 402 and a pushing fixing component 401, the pushing component fixing component 402 is an internally threaded fixing rod arranged inside the pushing component 2, the internally threaded fixing rod is fixedly connected to the other end of the pushing component 2, the thread of the internally threaded fixing rod matches the thread of the positioning rod 1, and is used to achieve the fixation between the pushing component 2 and the positioning rod 1, the pushing fixing component 401 includes a fixing rod 4011 matching the positioning hole 101 and a handle 4012 fixedly arranged at one end of the fixing rod 4011.

[0088] In the actual work process, Figures 1 to 3 As shown, in the embodiment, the openings 303 on the two discs 301 match the positioning rod 1, so that the two discs 301 are sleeved on the positioning rod 1, and the disc limiting rod 701 on the second support plate 7 limits the position of the disc 301, and the fixing rod 4011 matches the positioning hole 101, so that the positioning rod 1 and the propulsion device 3 are fixed, and then the position of the repair pipe 5 is fixed, and the output end of the hydraulic cylinder 302 extends to connect several repair pipes 5 located in the pushing component 2 and the propulsion device 3, thereby realizing the connection and transportation of the repair pipe 5, avoiding the problem in the prior art that the repair pipe needs to be stretched to realize the transportation of the repair pipe, which makes the repair pipe easy to be broken or fall off.

[0089] In the embodiment, in the actual working process, during the repair of the pipeline, it is necessary to place a traction device and a pipeline repair device at both ends of the pipeline respectively, wherein one end of the traction device is fixed to the wall, and the other end of the traction device is fixedly connected to the positioning rod, thereby realizing traction of the pipeline repair device, which is convenient for the overall transportation of the pipeline repair device.

[0090] A repair method for a pipeline repair device, such as Figure 8 As shown, the following steps are included:

[0091] S1: Assembling the pipeline repair device and two repair pipes 5;

[0092] S2: The pipeline repair device realizes the plugging of the repair pipes 5 and transports the pipeline repair device with the repair pipes 5 installed into the underground pipeline to be repaired;

[0093] S3: Assembling another repair pipe 5 with the pipeline repair device;

[0094] S4: looping steps S2 and S3 until the length of the mutually plugged repair pipe 5 matches the length of the underground pipeline to be repaired;

[0095] S5: pouring repair slurry between the inner wall of the underground pipeline and the outer wall of the repair pipe 5;

[0096] S6: After the repair slurry has solidified, the pipeline repair device is disassembled to complete the repair of the underground pipeline.

[0097] In the embodiment, step S1 includes threading the internal thread fixing rod of the pushing component 2 with a positioning rod 1, sleeve the first connecting end 503 of a repair tube 5 on the inner sleeve of the pushing component 2, sleeve a sealing ring at the annular groove of the first connecting end 503 of one end of the tube body 501 of the second repair tube 5, connect the first connecting end 503 of the second repair tube 5 with the second connecting end 502 of the tube body 501 of the first repair tube 5, and align the first support plate 6 with the second connecting end 502 of the second repair tube 5. Matching, so that the repair tube limiting rod 601 of the first supporting plate 6 matches with the repair tube 5, so as to limit the position of the repair tube 5, and then match the openings 303 on the two discs 301 with the positioning rod 1, so that the two discs 301 are sleeved on the positioning rod 1, and the disc limiting rod 701 on the second supporting plate 7 matches with the disc 301, so as to limit the position of the disc 301, and insert the fixing rod 4011 into the positioning hole 101, at this time, the position of the positioning rod 1 and the propulsion device 3 is fixed, thereby fixing the position of the repair tube 5;

[0098] In the embodiment, step S2 includes extending the output end of the hydraulic cylinder 302 so that the first repair tube 5 and the second repair tube 5 located in the pushing assembly 2 and the propulsion device 3 are plugged into each other. At this time, the protrusion of the clamping portion 5032 matches the anti-slip groove, and the corner block 5023 matches the corner groove 5034 to achieve the plug-in connection between the first repair tube 5 and the second repair tube 5. The adhesive device 504 is applied to the connection between the first connecting end 503 and the second connecting end 502 to achieve a fixed connection between the two repair tubes 5. After the repair tube 5 is plugged in, the repair tube 5 is transported into the underground pipeline to be repaired to complete the transportation and plug-in of the repair tube 5.

[0099] In the embodiment, step S6 includes retracting the output end of the hydraulic cylinder 302 after the repair slurry has solidified, pulling the fixing rod 4011 out of the positioning hole 101 through the handle 4012, removing the second support plate 7, the disc 301 and the first support plate 6 from the positioning rod 1, and spirally pulling the positioning rod 1 out of one end of the pushing assembly 2 in sequence to realize the disassembly of the pipeline repair propulsion device 3.

[0100] The working principle and working process of the present invention are as follows:

[0101] When it is necessary to repair the pipes 5 one by one for plugging:

[0102] Fix one end of the traction device to the wall at one end of the underground pipeline to be repaired, and then thread the traction device to the positioning rod 1, the positioning rod 1 is fixed to one end of the internal thread fixing rod of the pushing component 2, so that the output end of the traction device is extended until the pushing component 2 is pushed to the other end of the underground pipeline to be repaired, and the other end of the internal thread fixing rod of the pushing component 2 is threadedly connected to a positioning rod 1, and the end of the outer sleeve 8 with the limiting hole is sleeved on the inner sleeve of the pushing component 2, and the limiting holes are matched one by one, and then the limiting holes are fixed to the inner sleeve of the pushing component 2. The positioning rod is inserted into the limiting hole, and a sealing ring is sleeved on the annular groove of the first connecting end 503 at one end of the tube body 501 of the first repair tube 5. The first connecting end 503 of the first repair tube 5 is connected to the third connecting end 801 of the outer sleeve 8, and the first supporting plate 6 is matched with the second connecting end 502 of the first repair tube 5. The repair tube limiting rod 601 of the first supporting plate 6 is matched with the repair tube 5 to limit the position of the repair tube 5, and then the openings 303 on the two discs 301 are matched with the positioning rod 1. The two discs 301 are sleeved on the positioning rod 1, the disc limiting rod 701 on the second support plate 7 is matched with the disc 301 to limit the position of the disc 301, and the fixing rod 4011 is inserted into the positioning hole 101. At this time, the position of the positioning rod 1 and the propulsion device 3 is fixed, and then the position of the repair tube 5 is fixed. The output end of the hydraulic cylinder 302 is extended, so that the outer sleeve 8 located in the pushing component 2 and the propulsion device 3 and the first repair tube 5 are plugged into each other. At this time, the protrusion of the clamping part 5032 Matching with the anti-slip groove, the corner block 5023 matches with the corner groove 5034, so as to realize the plug-in connection between the outer sleeve 8 and the first repair pipe 5, and applying the adhesive device 504 to the connection between the first connecting end 503 of the first repair pipe 5 and the third connecting end 801 of the outer sleeve 8, so as to realize the fixed connection between the repair pipe 5 and the outer sleeve 8. After the repair pipe 5 is plugged in, the output end of the traction device is retracted to the position with the same length as the repair pipe 5, so that the repair pipe 5 is transported into the underground pipeline to be repaired, and the transportation and plug-in of the repair pipe 5 are completed;

[0103] By analogy, after several repair pipes 5 matching the length of the underground pipeline to be repaired are connected and transported into the underground pipeline to be repaired, the repair slurry is poured between the inner wall of the underground pipeline and the outer wall of the repair pipe 5. After the repair slurry has solidified, the output end of the hydraulic cylinder 302 is retracted, and the fixing rod 4011 is pulled out of the positioning hole 101 through the handle 4012. The second support plate 7, the disc 301 and the first support plate 6 are removed from the positioning rod 1, and the positioning rod 1 is spirally pulled out from one end of the pushing assembly 2 in sequence to realize the disassembly of the pipeline repair propulsion device 3.

[0104] When several repair tubes 5 need to be plugged in uniformly:

[0105] One end of the traction device is fixed to the wall at one end of the underground pipeline to be repaired, and then the traction device is threadedly fixedly connected to the positioning rod 1, and the positioning rod 1 is fixed to one end of the internal threaded fixing rod of the pushing component 2, so that the output end of the traction device is extended until the pushing component 2 is pushed to the other end of the underground pipeline to be repaired, and the other end of the internal threaded fixing rod of the pushing component 2 is threadedly connected to a positioning rod 1, and the end of the outer sleeve 8 with the limiting hole is sleeved on the inner sleeve of the pushing component 2, and the limiting holes are matched one by one, and then the limiting rod is inserted into the limiting hole, and a sealing ring is sleeved on the annular groove of the first connecting end 503 at one end of the tube body 501 of the first repair tube 5, and the first connecting end 503 of the first repair tube 5 is connected to the third connecting end 801 of the outer sleeve 8, and the output end of the traction device is retracted to the position with the same length as the repair tube 5, so that the repair tube 5 is transported into the underground pipeline to be repaired, so as to realize the transportation of the repair tube 5, and so on. The first connecting end 503 of the tube 5 is connected with the second connecting end 502 in sequence. When the plurality of repair tubes 5 are all sleeved, the first supporting plate 6 is matched with the repair tube 5 at the end, and the repair tube limiting rod 601 of the first supporting plate 6 is matched with the repair tube 5 to limit the position of the repair tube 5, and then the openings 303 on the two discs 301 are matched with the positioning rod 1, so that the two discs 301 are sleeved on the positioning rod 1, and the disc limiting rod 701 on the second supporting plate 7 is matched with the disc 301 to limit the position of the disc 301, and the fixing rod 4011 is inserted into the positioning hole 101. At this time, the position of the positioning rod 1 and the propulsion device 3 are fixed, and then the position of the repair tube 5 is fixed, and the output end of the hydraulic cylinder 302 is extended, so that the plurality of repair tubes 5 located in the pushing assembly 2 and the propulsion device 3 are sequentially plugged into each other to realize the plugging of the plurality of repair tubes 5. After the plugging of the plurality of repair tubes 5 is completed, the transportation and plugging of the repair tubes 5 are completed;

[0106] By analogy, after several repair pipes 5 matching the length of the underground pipeline to be repaired are connected and transported into the underground pipeline to be repaired, the repair slurry is poured between the inner wall of the underground pipeline and the outer wall of the repair pipe 5. After the repair slurry has solidified, the output end of the hydraulic cylinder 302 is retracted, and the fixing rod 4011 is pulled out of the positioning hole 101 through the handle 4012. The second support plate 7, the disc 301 and the first support plate 6 are removed from the positioning rod 1, and the positioning rod 1 is spirally pulled out from one end of the pushing assembly 2 in sequence to realize the disassembly of the pipeline repair propulsion device 3.

[0107] The characteristics of the present invention are: by means of a pushing component 2 and a propulsion device 3, the plugging and transportation of multiple repair pipes 5 are realized, thereby improving the maintenance efficiency of underground pipelines; by setting a pushing component 2 with a conical head, the underground pipeline can be dredged while being repaired, thereby avoiding the situation where too much debris in the underground pipeline leads to poor maintenance effect; by setting a positioning rod 1 with a positioning hole 101 and a fixing device 4, the position of the pushing component 2 and the propulsion device 3 is fixed, thereby realizing stable transportation of the repair pipe 5 in the underground pipeline, thereby ensuring the maintenance quality of the underground pipeline.

[0108] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A pipeline repair device, characterized in that: It comprises a plurality of detachably connected positioning rods (1), on which a pushing assembly (2), a plurality of repair tubes (5) and a propulsion device (3) are detachably sleeved in sequence, for realizing the plugging and transportation of the plurality of repair tubes (5); The positioning rod (1) is provided with a plurality of positioning holes (101), and a fixing device (4) matching the positioning holes (101) is also clamped on the positioning rod (1) to realize the positioning of the pushing component (2) and the propulsion device (3), and the pushing component (2) includes a conical head; A first support plate (6) is provided at one end of the propulsion device (3), a second support plate (7) is provided at the other end of the propulsion device (3), and the fixing device (4) is provided on the other side of the second support plate (7) to fix the position of the propulsion device (3); The propulsion device (3) comprises two disks (301) of identical structure and a plurality of hydraulic cylinders (302) disposed between the two disks (301); both ends of the hydraulic cylinders (302) are respectively fixedly connected to the two disks (301); one side of the disk (301) is provided with an opening (303) matching the outer diameter of the positioning rod (1); The fixing device (4) comprises a pushing assembly fixing assembly (402) and a pushing fixing assembly (401); the pushing fixing assembly (401) comprises a fixing rod (4011) matching the positioning hole (101) and a handle (4012) fixedly arranged at one end of the fixing rod (4011); the pushing assembly fixing assembly (402) is an internally threaded fixing rod arranged inside the pushing assembly (2).

2. A pipeline repair device according to claim 1, characterized in that: One end of the positioning rod (1) is provided with a threaded rod (102), and the other end of the positioning rod (1) is provided with a threaded groove (103) matching the threaded rod (102).

3. A pipeline repair device according to claim 2, characterized in that: A through hole matching the positioning rod (1) is provided at the middle position of the first supporting plate (6) and the second supporting plate (7), so that the positioning rod (1) can be penetrated and arranged on the first supporting plate (6) and the second supporting plate (7).

4. A pipeline repair device according to claim 1, characterized in that: An inner sleeve is provided on one side of the pushing component (2); the outer diameter of the inner sleeve matches the inner diameter of the repair tube (5) and is used for clamping the pushing component (2) and the repair tube (5).

5. A pipeline repair device according to claim 1, characterized in that: The outer diameter of the first supporting plate (6) is greater than the outer diameter of the repair tube (5), and a plurality of repair tube limiting rods (601) are evenly arranged on the outer side of the first supporting plate (6) for limiting the position of the repair tube (5).

6. A pipeline repair device according to claim 5, characterized in that: The outer diameter of the second supporting plate (7) is greater than the outer diameter of the disc (301), and a plurality of disc limiting rods (701) are evenly arranged on the outer side of the second supporting plate (7) for limiting the position of the disc (301).

7. A repair method using a pipeline repair device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: Assembling the pipeline repair device and two repair pipes (5); S2: The pipeline repair device realizes the plugging of the repair pipes (5) and transports the pipeline repair device with the repair pipe (5) installed into the underground pipeline to be repaired; S3: Assembling another repair pipe (5) with the pipeline repair device; S4: looping steps S2 and S3 until the length of the mutually plugged repair pipe (5) matches the length of the underground pipeline to be repaired; S5: injecting repair slurry into the space between the inner wall of the underground pipeline and the outer wall of the repair pipe (5); S6: After the repair slurry has solidified, the pipeline repair device is disassembled to complete the repair of the underground pipeline.

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