A simultaneous injection rotary jet device for trenchless pipe rehabilitation

Abstract

The application discloses a synchronous injection type rotary nozzle device for trenchless pipeline repair and relates to the technical field of pipeline repair.The device comprises a cylinder body, a first pipe body, a second pipe body and a third pipe body are fixed in the cylinder body, the first pipe body, the second pipe body and the third pipe body are concentrically arranged, the first pipe body is used for conveying repair polymers, and the second pipe body is used for conveying gas.The device can first process the inner surface of the pipeline to clean floating dust and burrs at damaged positions on the inner surface of the pipeline when pipeline repair work is performed, so that the epoxy resin can be uniformly attached to the inner surface of the pipeline, the repair effect is improved, in addition, the repair assembly is used to fill the damaged position of the pipeline, thereby ensuring that the inner surface of the repaired pipeline is smooth, so that water scale, impurities and the like cannot be accumulated in the pits and depressions in the pipeline after the pipeline is repaired, and the conveying capacity of the pipeline after the pipeline is repaired is ensured.

Description

Technical Field

[0001] This invention relates to the field of pipeline repair technology, and in particular to a synchronous injection rotary nozzle device for trenchless pipeline repair. Background Technology

[0002] Trenchless pipeline refers to a series of construction techniques for laying, replacing, or repairing underground pipelines without large-scale surface excavation. Trenchless pipeline repair can minimize the impact on ground traffic, the environment, buildings, and citizens' lives. One such repair process is rotary spraying repair, which is a process that uses mechanical means to uniformly spray slurry or resin-based repair materials onto the inner wall of the pipeline. After the resin-based repair material cures, it can increase the pipeline's sealing and strength, thus completing the pipeline repair work.

[0003] Currently, most equipment using the above-mentioned processes has poor treatment effect on the inner surface of the pipe during pipeline repair, or even no treatment at all. For example, in Chinese patent CN121206317A, the inner surface of the pipe is not treated. After the resin-based repair material is sprayed onto the inner surface of the pipe, the resin-based repair material will fall off due to the shedding of floating dust. At this time, the pipeline repair effect is extremely poor. In addition, when the pipeline is damaged, its inner surface usually produces burrs at the edges of the detached material. That is, when the pipeline is damaged, its inner surface is usually in an uneven state. If spraying treatment is performed in this state, the inner surface of the repaired pipeline will still be uneven. During subsequent pipeline operation, scale and other impurities are easy to accumulate in the pits and depressions on the inner surface of the pipeline, affecting the pipeline's transport capacity. Summary of the Invention

[0004] The purpose of this invention is to provide a synchronous injection rotary nozzle device for trenchless pipeline repair, so as to solve the technical problems in the prior art.

[0005] This invention provides a synchronous injection rotary nozzle device for trenchless pipeline repair, comprising:

[0006] The cylinder contains a first tube, a second tube, and a third tube, which are concentrically arranged. The first tube is used to transport the repair polymer, the second tube is used to transport gas, and a plurality of air inlets are provided at one end of the cylinder. The third tube is used to cooperate with the plurality of air inlets to realize the gas backflow in the pipe.

[0007] A hollow base and a mounting base are both fixedly sleeved on the cylinder, and multiple fan blades are fixedly arranged at equal intervals on both the hollow base and the mounting base.

[0008] Four processing components are fixed on the outer wall of the cylinder and are located between the hollow seat and the mounting seat. The processing components are used to clean and polish the inner wall of the pipe.

[0009] A repair assembly, which is fixed to the outer wall of the cylinder, is used to repair the damaged parts of the pipeline;

[0010] A connecting seat is fixedly sleeved on the cylinder body. Multiple material conveying pipes are provided through the inner wall of the connecting seat, and all multiple material conveying pipes are connected to the first pipe body. The repair component is disposed between the connecting seat and the hollow seat.

[0011] Multiple spraying components are fixed at equal intervals on the outer wall of the connecting seat, and each spraying component is connected to the connecting seat. The spraying components are used to spray repair resin onto the inner wall of the pipe.

[0012] Two support components are provided at both ends of the cylinder.

[0013] Preferably, the support component includes:

[0014] A connecting frame is provided, with multiple fixing plates fixed to its side walls. Each fixing plate is equipped with an elastic telescopic rod, and each telescopic end of the elastic telescopic rod is equipped with a support wheel.

[0015] Preferred options also include:

[0016] The base body is fixed to one of the connecting frames. The base body is rotatably connected to the cylinder body and rotatably connected to the first tube body, the second tube body and the third tube body. The base body has three cavities. Each cavity has multiple through holes on its inner wall. The three cavities are connected to the first tube body, the second tube body and the third tube body through corresponding through holes.

[0017] The protective tube is fixed to the side wall of the base body. Three connecting tubes are fixed inside the protective tube, and the three connecting tubes are connected to the three cavities one-to-one.

[0018] Preferred options also include:

[0019] The motor is fixed on another connecting frame, and the output shaft of the motor is fixed to the end of the cylinder.

[0020] Preferably, the processing component includes:

[0021] A connecting seat, which is fixed to the side wall of the cylinder;

[0022] Two electric slides, both of which are fixed to the top of the connecting seat;

[0023] Two connecting rods are rotatably connected to the moving ends of two electric slides, and the ends of the two connecting rods are rotatably connected to mounting plates.

[0024] Two second shafts are rotatably connected to two mounting plates, respectively;

[0025] The mounting roller is fixed to two second shafts;

[0026] Two transmission components are provided, and each of the two transmission components is connected to a mounting plate.

[0027] Preferably, the transmission assembly includes:

[0028] Two gears, both of which are rotatably mounted on the side wall of the mounting plate, and the two gears mesh with each other;

[0029] A first shaft is rotatably mounted on the side wall of the mounting plate, wherein one of the gears is fixed to the second shaft, and the other gear is fixed to the first shaft;

[0030] A rubber wheel is fixed to the first shaft.

[0031] Preferably, two of the mounting rollers are fixedly fitted with cleaning rollers, and the two cleaning rollers are symmetrically arranged; and two of the mounting rollers are fixedly fitted with grinding rollers, and the two grinding rollers are symmetrically arranged.

[0032] Preferably, the repair component includes:

[0033] An annular seat, which is fixedly sleeved on the cylinder;

[0034] Two hydraulic push rods are provided, both of which are fixed to an annular seat. Each hydraulic push rod has a support plate fixed to its telescopic end by bolts.

[0035] A pneumatic push rod, which is fixed to the telescopic end of one of the hydraulic push rods;

[0036] A water supply pipe is fixed to the telescopic end of a pneumatic push rod. A circular hole is provided on the support plate near the water supply pipe, and the water supply pipe passes through the circular hole.

[0037] A delivery pipe, which is fixed inside a water delivery pipe;

[0038] A retaining ring is threadedly fixed to the end of the delivery pipe and the second check valve.

[0039] A fixed base is provided, wherein the fixed base and the fixed ring are fixed together, and the fixed base is connected to the conveying pipe;

[0040] Multiple third check valves are provided, and all of the multiple third check valves are disposed through the side wall of the fixed seat;

[0041] Multiple second check valves are provided, all of which are installed through the side wall of the water supply pipe;

[0042] Two connecting pipes, one of which penetrates the inner wall of the water supply pipe and the other of which penetrates the inner wall of the delivery pipe, and a first one-way valve is installed through each of the connecting pipes;

[0043] Three plates, all of which are fixed to the inner wall of the cylinder;

[0044] Two storage cylinders are fixed to two plates. A piston is slidably disposed on the inner wall of each storage cylinder. A transmission rod is fixed to the side wall of each piston. The two storage cylinders are respectively connected to two connecting pipes. One storage cylinder is used to store water, and the other storage cylinder is used to store polyurethane polymers.

[0045] An electric actuator, which is fixed to another plate;

[0046] A transmission plate is fixed to the telescopic end of the electric push rod, and the transmission plate and two transmission rods are fixed together.

[0047] Preferably, the spraying assembly includes:

[0048] A sleeve, which is fixed to the side wall of the connecting seat and is connected to the connecting seat;

[0049] A hollow rod, which is slidably disposed within a sleeve;

[0050] Two connecting plates are respectively fixedly sleeved on the sleeve and the hollow rod;

[0051] A first spring, which is fixed between the two connecting plates;

[0052] Two second support plates are fixed to a connecting plate near the hollow rod, and the two second support plates are symmetrically arranged. Each second support plate is fixed with a support frame, and each support frame is provided with a roller at its end.

[0053] Two first support plates are fixed to a connecting plate near the hollow rod, and the two first support plates are symmetrically arranged. Each first support plate is fixed with a nozzle.

[0054] Two feed pipes are provided, both of which are installed through the side wall of the hollow rod, and the two feed pipes are respectively connected to two nozzles;

[0055] A sealing block, which is slidably disposed inside a hollow rod;

[0056] The second spring is fixed to the inner wall of the hollow rod, and the second spring and the sealing block are fixed together.

[0057] Preferably, the hollow seat has multiple exhaust holes on its side wall, and multiple air supply pipes are provided through the inner wall of the hollow seat, and all of the multiple air supply pipes are connected to the second pipe body.

[0058] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0059] (1) The present invention, through the set cylinder, processing component, repair component and spraying component, can realize that when the device is performing pipeline repair work, it can first treat the inner surface of the pipeline to clean the floating dust and burrs at the damaged area of ​​the inner surface of the pipeline, so as to ensure that the epoxy resin can be evenly attached to the inner surface of the pipeline to improve the repair effect. In addition, through the function of the repair component, the damaged area of ​​the pipeline is filled, thereby ensuring that the inner surface of the repaired pipeline is smooth, so as to ensure that scale, impurities and other substances will not accumulate in the pits and depressions of the pipeline after repair, thereby ensuring the conveying capacity after pipeline repair.

[0060] (2) The present invention, through the fan blade, hollow seat, air inlet, second tube and third tube, can generate airflow through the action of the fan blade when the inner surface of the pipe is treated, so as to avoid the floating dust and impurities generated by grinding adhering to the inner surface of the pipe after treatment. Through the action of positive pressure and negative pressure, the airflow speed and airflow at the treatment component are further increased, and the cleanliness of the inner surface of the pipe is further guaranteed. Attached Figure Description

[0061] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0062] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0063] Figure 2 This is the invention Figure 1 Enlarged structural diagram at point A in the middle;

[0064] Figure 3 This is a schematic cross-sectional view of the water supply pipe of the present invention;

[0065] Figure 4 This is a schematic diagram of the elastic telescopic rod and support wheel structure of the present invention;

[0066] Figure 5 This is a schematic cross-sectional view of the base structure of the present invention;

[0067] Figure 6 This is a schematic cross-sectional view of the cylindrical body of the present invention;

[0068] Figure 7 This is a cross-sectional view of the storage cylinder structure of the present invention;

[0069] Figure 8 This is a schematic diagram of the connecting seat and conveying pipe structure of the present invention;

[0070] Figure 9 This is a schematic diagram of the nozzle, hollow rod, and support frame structure of the present invention;

[0071] Figure 10 This is a cross-sectional structural diagram of the sleeve and hollow rod of the present invention;

[0072] Figure 11 This is a schematic diagram of the second tube body, air supply pipe and hollow seat structure of the present invention;

[0073] Figure 12 This is a schematic diagram of the electric slide, connecting rod, and mounting plate structure of the present invention;

[0074] Figure 13 This is a schematic diagram of the first shaft, the second shaft, and the gear structure of the present invention.

[0075] Figure label:

[0076] 101. Cylinder body; 102. Base body; 103. Protective pipe; 104. Connecting pipe; 105. Air inlet; 106. Cavity; 107. Through hole; 108. First pipe body; 109. Second pipe body; 110. Third pipe body; 111. Motor; 201. Connecting seat; 202. Electric slide; 203. Connecting rod; 204. Mounting plate; 205. Mounting roller; 206. Rubber wheel; 207. First shaft body; 208. Gear; 209. Second shaft body; 301. Hollow seat; 302. Mounting seat; 303. Fan blade; 304. Exhaust port; 305. Air supply pipe; 401. Annular seat; 402. Hydraulic push rod; 403. Support plate; 404. Pneumatic push rod; 405. Water supply pipe; 406. 407. Connecting pipe; 408. First one-way valve; 409. Conveying pipe; 410. Second one-way valve; 411. Fixed seat; 412. Third one-way valve; 501. Fixed ring; 502. Connecting seat; 503. Sleeve; 504. Hollow rod; 505. Connecting plate; 506. First spring; 507. Nozzle; 508. Feeding pipe; 509. Second support plate; 510. Support frame; 511. Second spring; 512. Sealing block; 513. Conveying pipe; 601. Connecting frame; 602. Fixed plate; 603. Elastic telescopic rod; 604. Support wheel; 701. Plate body; 702. Storage cylinder; 703. Transmission rod; 704. Transmission plate; 705. Electric push rod; 706. Piston. Detailed Implementation

[0077] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0078] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0079] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0080] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0081] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0082] The following is combined Figures 1 to 13 As shown, this embodiment of the invention provides a synchronous injection rotary nozzle device for trenchless pipeline repair, comprising:

[0083] The cylinder 101 has a first tube 108, a second tube 109, and a third tube 110 fixed inside it. The first tube 108, the second tube 109, and the third tube 110 are arranged concentrically. The first tube 108 is used to transport the repair polymer, the second tube 109 is used to transport gas, and a plurality of air inlets 105 are opened at one end of the cylinder 101. The third tube 110 is used to cooperate with the plurality of air inlets 105 to realize the gas backflow in the pipe.

[0084] Hollow seat 301 and mounting seat 302 are both fixedly sleeved on cylinder 101, and multiple fan blades 303 are fixedly distributed at equal intervals on hollow seat 301 and mounting seat 302.

[0085] The hollow seat 301 has multiple exhaust holes 304 on its side wall and multiple air supply pipes 305 are provided through the inner wall of the hollow seat 301, and all multiple air supply pipes 305 are connected to the second pipe body 109.

[0086] Four processing components are fixed on the outer wall of the cylinder 101 and are located between the hollow seat 301 and the mounting seat 302. The processing components are used to clean and polish the inner wall of the pipe.

[0087] Repair assembly, which is fixed on the outer wall of cylinder 101, is used to repair the damaged parts of the pipeline;

[0088] A connecting seat 501 is fixedly sleeved on the cylinder 101. Multiple material conveying pipes 513 are provided through the inner wall of the connecting seat 501, and all multiple material conveying pipes 513 are connected to the first pipe body 108. The repair component is set between the connecting seat 501 and the hollow seat 301.

[0089] Multiple spraying components are fixed at equal intervals on the outer wall of the connecting seat 501, and each spraying component is connected to the connecting seat 501. The spraying components are used to spray repair resin onto the inner wall of the pipe.

[0090] Two support components are located at both ends of the cylinder 101.

[0091] Furthermore, the supporting components include:

[0092] A connecting frame 601 has multiple fixing plates 602 fixed on its side wall. Each fixing plate 602 has an elastic telescopic rod 603 fixed on it, and each telescopic end of the elastic telescopic rod 603 has a support wheel 604 fixed on it.

[0093] Furthermore, it also includes:

[0094] The base 102 is fixed to one of the connecting brackets 601. The base 102 is rotatably connected to the cylinder 101, and the base 102 is rotatably connected to the first tube 108, the second tube 109, and the third tube 110. The base 102 has three cavities 106 inside, and each cavity 106 has multiple through holes 107 on its inner wall. The three cavities 106 are connected to the first tube 108, the second tube 109, and the third tube 110 through the corresponding through holes 107.

[0095] The protective tube 103 is fixed on the side wall of the base 102. Three connecting tubes 104 are fixed inside the protective tube 103. The three connecting tubes 104 are connected to the three cavities 106 one-to-one.

[0096] Furthermore, it also includes:

[0097] Motor 111 is fixed on another connecting bracket 601, and the output shaft of motor 111 is fixed to the end of cylinder 101.

[0098] Furthermore, the processing components include:

[0099] Connecting seat 201 is fixed to the side wall of cylinder 101;

[0100] Two electric slides 202 are fixed to the top of the connecting seat 201;

[0101] Two connecting rods 203 are rotatably connected to the moving ends of two electric slides 202 respectively, and the ends of the two connecting rods 203 are rotatably connected to the mounting plate 204.

[0102] Two second shafts 209 are rotatably connected to two mounting plates 204 respectively;

[0103] Mounting roller 205, mounting roller 205 and two second shafts 209 are fixed;

[0104] Two transmission components are connected to two mounting plates 204 respectively.

[0105] When the two electric slides 202 are working, the mounting rollers 205 gradually move closer to the inner surface of the pipe through the action of the connecting rod 203 and the mounting plate 204.

[0106] Furthermore, the transmission components include:

[0107] Two gears 208 are rotatably mounted on the side wall of the mounting plate 204, and the two gears 208 mesh with each other;

[0108] The first shaft 207 is rotatably mounted on the side wall of the mounting plate 204. One gear 208 is fixed to the second shaft 209, and the other gear 208 is fixed to the first shaft 207.

[0109] Rubber wheel 206 is fixed to the first shaft 207.

[0110] The cylinder 101 drives the rubber wheel 206 to roll along the inner surface of the pipe via the connecting seat 201, electric slide 202, connecting rod 203, and mounting plate 204. When the rubber wheel 206 rotates, it drives the corresponding mounting roller 205 to rotate via the first shaft 207, the second shaft 209, and two gears 208, thereby driving the cleaning roller to rotate. This causes the cleaning roller to rotate on its own while rotating along the inner surface of the pipe, and the cleaning roller in this state is used to clean the inner surface of the pipe.

[0111] Furthermore, two of the mounting rollers 205 are fixedly fitted with cleaning rollers, and the two cleaning rollers are symmetrically arranged. The other two mounting rollers 205 are fixedly fitted with grinding rollers, and the two grinding rollers are symmetrically arranged.

[0112] When the cleaning roller comes into contact with the inner surface of the pipe, it can be used to clean the floating dust on the inner surface of the pipe. When the grinding roller comes into contact with the inner surface of the pipe, it can be used to grind the burrs at the damaged parts of the pipe, so that the epoxy resin can adhere stably to the inner surface of the pipe. After grinding, the inner surface of the pipe is smooth, so that the surface remains smooth after the epoxy resin is sprayed, thus avoiding the accumulation of scale and other debris in the pipe during subsequent use.

[0113] Furthermore, the repair components include:

[0114] An annular seat 401 is fixedly sleeved on the cylinder 101;

[0115] Two hydraulic push rods 402 are fixed to the annular seat 401. Each hydraulic push rod 402 has a support plate 403 fixed to its telescopic end by bolts.

[0116] Pneumatic push rod 404 is fixed to the telescopic end of one of the hydraulic push rods 402;

[0117] Water supply pipe 405 is fixed on the telescopic end of pneumatic push rod 404. A round hole is provided on the support plate 403 near the water supply pipe 405, and the water supply pipe 405 passes through the round hole.

[0118] Delivery pipe 408 is fixed inside water delivery pipe 405;

[0119] The retaining ring 412 is fixed to the end of the delivery pipe 408 and the second check valve 409 by threads;

[0120] The fixed base 410 is fixed to the fixed ring 412, and the fixed base 410 is connected to the conveying pipe 408;

[0121] Multiple third check valves 411 are all installed through the side wall of the fixed seat 410;

[0122] Multiple second check valves 409 are installed through the side wall of the water supply pipe 405.

[0123] Two connecting pipes 406, one of which penetrates the inner wall of the water supply pipe 405 and the other of which penetrates the inner wall of the delivery pipe 408. A first one-way valve 407 is installed through each connecting pipe 406.

[0124] Three plates 701 are fixed to the inner wall of the cylinder 101;

[0125] Two storage cylinders 702 are fixed to two plates 701. A piston 706 is slidably provided on the inner wall of each storage cylinder 702. A transmission rod 703 is fixed on the side wall of each piston 706. The two storage cylinders 702 are respectively connected to two connecting pipes 406. One storage cylinder 702 is used to store water, and the other storage cylinder 702 is used to store polyurethane polymers.

[0126] Electric push rod 705, electric push rod 705 and another plate 701 are fixed together;

[0127] The transmission plate 704 is fixed to the telescopic end of the electric push rod 705, and the transmission plate 704 and the two transmission rods 703 are fixed together.

[0128] Since the support plate 403 is in close contact with the inner wall of the pipe, and the top of the fixing seat 410 and the surface of the support plate 403 are smooth, the repair area and the inner surface of the pipe are also smooth after the polyurethane polymer is cured.

[0129] Furthermore, the spraying components include:

[0130] Sleeve 502 is fixed on the side wall of connecting seat 501, and sleeve 502 and connecting seat 501 are connected;

[0131] Hollow rod 503 is slidably disposed within sleeve 502;

[0132] Two connecting plates 504 are respectively fixedly sleeved on the sleeve 502 and the hollow rod 503;

[0133] The first spring 505 is fixed between the two connecting plates 504;

[0134] Two second support plates 509 are fixed on the connecting plate 504 near the hollow rod 503, and the two second support plates 509 are symmetrically arranged. Each second support plate 509 is fixed with a support frame 510, and each support frame 510 is provided with a roller at its end.

[0135] Two first support plates 506 are fixed on the connecting plate 504 near the hollow rod 503, and the two first support plates 506 are symmetrically arranged. Each first support plate 506 is fixed with a nozzle 507.

[0136] Two feed pipes 508 are installed through the side wall of the hollow rod 503, and the two feed pipes 508 are respectively connected to two nozzles 507.

[0137] Sealing block 512, which is slidably disposed inside hollow rod 503;

[0138] The second spring 511 is fixed on the inner wall of the hollow rod 503, and the second spring 511 and the sealing block 512 are fixed together.

[0139] After the hollow rod 503 rotates to a certain speed, under the action of centrifugal force, the sealing block 512 slides to the end of the hollow rod 503. At this time, the epoxy resin inside the hollow rod 503 enters the nozzle 507 through the feed pipe 508 and is then sprayed out through the nozzle 507. With the rotating nozzle 507, the epoxy resin is evenly sprayed on the inner surface of the pipe. After the epoxy resin cures, the pipe repair work is completed.

[0140] After repair, the supply of epoxy resin is first stopped, and then the rotation speed of the cylinder 101 is reduced. At this time, under the action of centrifugal force, epoxy resin can still be output through the nozzle 507. At this time, under the action of the first spring 505, the hollow rod 503 gradually retracts into the sleeve 502. When the rotation speed of the cylinder 101 is reduced to a certain level, under the action of the second spring 511, the sealing block 512 is reset. At this time, the sealing block 512 moves to the feed pipe 508, so that the epoxy resin stops being output from the nozzle 507, so as to avoid epoxy resin dripping onto the device when the rotation speed is low, thereby avoiding the epoxy resin dripping onto the device from curing and affecting the normal operation of the device, so as to reduce the maintenance frequency of the device.

[0141] By utilizing the rollers and support frame 510, the nozzle 507 can be kept as close as possible to the inner surface of the pipe, while also preventing the nozzle 507 from contacting the inner surface of the pipe. This ensures the spraying effect and also prevents the nozzle 507 from being damaged by contact with the inner surface of the pipe.

[0142] The specific working method is as follows: In the preparation stage, take two hoses and connect them to two first one-way valves 407 respectively. Turn on the switch of the electric push rod 705. When the electric push rod 705 is working, it drives the two transmission rods 703 to move through the transmission plate 704, so that the piston 706 slides in the storage cylinder 702. During this process, water and polyurethane polymer are pumped into the two storage cylinders 702 respectively through the hoses, first one-way valves 407 and connecting pipes 406 for storage. Connect the inlet and outlet of the air pump to two of the connecting pipes 104, and connect the outlet of the epoxy resin pumping equipment to the other connecting pipe 104.

[0143] According to the specifications of the pipe to be repaired, a support plate 403 of appropriate shape is selected and fixed to the telescopic end of the hydraulic push rod 402 with bolts. Then, a fixing seat 410 of appropriate shape is selected and fixed to the end of the water supply pipe 405 and the delivery pipe 408. Since the shapes of the support plate 403 and the fixing seat 410 are adapted to the pipe, when the support plate 403 abuts against the inner surface of the pipe, the support plate 403 can abut against the inner wall of the pipe, while the end of the fixing seat 410 is smooth against the surface of the support plate 403.

[0144] Finally, place the remote-controlled tractor inside the pipe, then fix the camera to the remote-controlled tractor, and finally fix the remote-controlled tractor to the device.

[0145] When repairing a pipeline, place this device inside the pipeline. Through the action of the elastic telescopic rod 603, make each support wheel 604 abut against the inner surface of the pipeline. Turn on the switch of the motor 111. When the motor 111 is working, it drives the cylinder 101 to rotate.

[0146] When the switches of the two electric slides 202 on the same connecting seat 201 are turned on, the two electric slides 202 work, and through the action of the connecting rod 203 and the mounting plate 204, the mounting roller 205 gradually approaches the inner surface of the pipe. By controlling the electric slides 202, the two cleaning rollers are made to abut against the inner surface of the pipe. At this time, the cylinder 101 drives the rubber wheel 206 to roll along the inner surface of the pipe through the connecting seat 201, the electric slide 202, the connecting rod 203, and the mounting plate 204. When the rubber wheel 206 rotates, it drives the corresponding mounting roller 205 to rotate through the first shaft 207, the second shaft 209 and the two gears 208, thereby driving the cleaning roller to rotate. The cleaning roller rotates along the inner surface of the pipe and uses the cleaning roller in this state to clean the inner surface of the pipe.

[0147] Subsequently, through the same operation, the two grinding rollers are brought into contact with the inner surface of the pipe, and the inner wall of the pipe is ground using the grinding rollers;

[0148] During the process of treating the inner surface of the pipe, the cylinder 101 rotates, which drives each fan blade 303 to rotate through the hollow seat 301 and the mounting seat 302. The two sets of rotating fan blades 303 make the gas inside the pipe flow, so that the dust generated during the treatment of the inner surface of the pipe flows to the air inlet 105, so as to avoid the dust adhering to the inner surface of the pipe after treatment.

[0149] During the inner surface treatment of the pipeline, the air pump is switched on. When the air pump is working, the positive pressure gas generated enters the corresponding cavity 106 through the corresponding connecting pipe 104, and then enters the second pipe body 109 through the corresponding through hole 107. The gas in the second pipe body 109 enters the hollow seat 301 through multiple air supply pipes 305, and finally exits through the exhaust hole 304. At the same time, when the air pump is working, the negative pressure generated causes the gas in the pipeline to enter the cylinder 101 through the air inlet 105, and then enters the corresponding cavity 106 through the third pipe body 110, and then enters the corresponding cavity 106 through the corresponding through hole 107. Finally, it flows back to the air pump through the connecting pipe 104 connected to the cavity 106. The operation of the air pump increases the kinetic energy of the gas flow, so as to further prevent dust and debris generated during the inner surface treatment of the pipeline from adhering to the treated pipeline.

[0150] Using a remote-controlled tractor, the device moves along the inside of the pipeline and performs treatment on the inner wall of the pipeline to ensure the effectiveness of subsequent repairs.

[0151] During the movement of the remote-controlled tractor, the camera also collects images of the inside of the pipeline in real time, enabling staff to discover large-scale damage inside the pipeline. At this time, the pipeline can be repaired.

[0152] During the filling operation, the cylinder 101 is rotated at a certain angle by controlling the motor 111. During this process, the cylinder 101 drives the hydraulic push rod 402 to rotate through the annular seat 401, causing the pneumatic push rod 404 to rotate to the damaged part of the pipe. Then, the switches of the two hydraulic push rods 402 are turned on. When the two hydraulic push rods 402 are working, they drive the two support plates 403 to move until both support plates 403 are in contact with the inner surface of the pipe. Then, the switch of the pneumatic push rod 404 is turned on. When the pneumatic push rod 404 is working, it drives the water pipe 405 to move and enter the damaged part of the pipe through the round hole on the support plate 403.

[0153] When the switch of the electric push rod 705 is turned on, the electric push rod 705 drives the two pistons 706 to move inside the storage cylinder 702 through the transmission plate 704 and the transmission rod 703. This causes the water and polyurethane polymer in the two storage cylinders 702 to be injected into the water supply pipe 405 and the delivery pipe 408 through the two connecting pipes 406, respectively. The water in the water supply pipe 405 is sprayed out through the second one-way valves 409 on the water supply pipe 405, and the polyurethane polymer in the delivery pipe 408 is sprayed out through the third one-way valve 411. Then the switch of the pneumatic push rod 404 is turned on, causing the water supply pipe 405 to gradually retract. During this process, the polyurethane polymer and water are evenly sprayed on the damaged area. After the polyurethane polymer reacts with the water, it quickly foams and expands. However, due to the action of the support plate 403, the polyurethane polymer only reacts at the damaged area of ​​the pipe. After the polyurethane polymer has reacted and solidified, it fills the damaged area of ​​the pipe.

[0154] Finally, when carrying out the overall pipeline repair work, the epoxy resin pumping equipment is turned on, so that the epoxy resin enters the corresponding cavity 106 through the corresponding connecting pipe 104, and then enters the first pipe body 108 through the corresponding through hole 107. Then, the epoxy resin in the first pipe body 108 enters the connecting seat 501 through the conveying pipe 513, and finally enters the sleeve 502 and the hollow rod 503.

[0155] The motor 111 and the cylinder 101 drive the connecting seat 501 to rotate, which in turn drives the sleeve 502 to rotate. During the rotation of the sleeve 502, under the action of centrifugal force, the hollow rod 503 slides along the sleeve 502 until the support frame 510 and the roller abut against the inner surface of the pipe. After the hollow rod 503 reaches a certain speed, under the action of centrifugal force, the sealing block 512 slides to the end of the hollow rod 503. At this time, the epoxy resin in the hollow rod 503 enters the nozzle 507 through the feed pipe 508 and is then sprayed out through the nozzle 507. With the rotating nozzle 507, the epoxy resin is evenly sprayed on the inner surface of the pipe. After the epoxy resin cures, the pipe repair work is completed.

[0156] It is worth noting that the air pump described in this application should have a certain degree of gas handling capacity to avoid the debris, dust and other contaminants generated during pipe grinding affecting the normal operation of the air pump.

[0157] In addition, the selection and formulation of polyurethane polymers described in this application should be carried out with the premise of minimizing curing time in order to ensure pipeline repair efficiency. The output ratio of polyurethane polymers and water can be adjusted by adjusting the inner diameter of the two storage cylinders 702 to ensure the curing effect of polyurethane polymers.

[0158] The power supply and control cables of the various power components described in this application should be integrated in the connecting pipe 104. The signal and power transmission between the cables and the power components can be achieved by using components such as carbon brushes and conductive rails to ensure that the cables in the connecting pipe 104 can be fixed when the cylinder 101 rotates, so as to facilitate the cable winding and unwinding.

[0159] Finally, the elastic telescopic rod 603 is equipped with an elastic component inside. When the device is inside the pipe, its elastic component makes the cylinder 101 and the axis coincide with the axis of the pipe, so as to ensure the epoxy resin spraying effect and the treatment effect of the inner surface of the pipe.

[0160] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A synchronous injection rotary nozzle device for trenchless pipeline repair, characterized in that, include: A cylindrical body (101) is provided, and a first tube (108), a second tube (109), and a third tube (110) are fixed inside the cylindrical body (101). The first tube (108), the second tube (109), and the third tube (110) are arranged concentrically. The first tube (108) is used to transport the repair polymer, and the second tube (109) is used to transport gas. A plurality of air inlets (105) are provided at one end of the cylindrical body (101), and the third tube (110) is used to cooperate with the plurality of air inlets (105) to realize the gas return in the pipeline. Hollow seat (301) and mounting seat (302) are fixedly sleeved on the cylinder (101), and multiple fan blades (303) are fixedly distributed at equal intervals on the hollow seat (301) and mounting seat (302). Four processing components are fixed on the outer wall of the cylinder (101) and are located between the hollow seat (301) and the mounting seat (302). The processing components are used to clean and polish the inner wall of the pipe. A repair assembly, which is fixed to the outer wall of the cylinder (101), is used to repair the damaged parts of the pipe; A connecting seat (501) is fixedly sleeved on the cylinder (101). Multiple material conveying pipes (513) are provided through the inner wall of the connecting seat (501), and the multiple material conveying pipes (513) are all connected to the first pipe body (108). The repair component is disposed between the connecting seat (501) and the hollow seat (301). Multiple spraying components are fixed at equal intervals on the outer wall of the connecting seat (501), and each spraying component is connected to the connecting seat (501). The spraying components are used to spray repair resin onto the inner wall of the pipe. Two support components are provided at both ends of the cylinder (101).

2. The synchronous injection rotary nozzle device for trenchless pipeline repair according to claim 1, characterized in that, The support components include: A connecting frame (601) has multiple fixing plates (602) fixed on its side wall. Each fixing plate (602) has an elastic telescopic rod (603) fixed on it. Each telescopic end of the elastic telescopic rod (603) has a support wheel (604) fixed on it.

3. A synchronous injection rotary nozzle device for trenchless pipeline repair according to claim 2, characterized in that, Also includes: A base (102) is fixed to one of the connecting frames (601). The base (102) is rotatably connected to the cylinder (101). The base (102) is rotatably connected to the first tube (108), the second tube (109), and the third tube (110). The base (102) has three cavities (106) inside. Each cavity (106) has multiple through holes (107) on its inner wall. The three cavities (106) are connected to the first tube (108), the second tube (109), and the third tube (110) through the corresponding through holes (107). The protective tube (103) is fixed on the side wall of the base (102). Three connecting tubes (104) are fixed inside the protective tube (103). The three connecting tubes (104) and the three cavities (106) are connected one-to-one.

4. A synchronous injection rotary nozzle device for trenchless pipeline repair according to claim 3, characterized in that, Also includes: The motor (111) is fixed on another connecting frame (601), and the output shaft of the motor (111) is fixed to the end of the cylinder (101).

5. A synchronous injection rotary nozzle device for trenchless pipeline repair according to claim 1, characterized in that, The processing component includes: A connecting seat (201) is fixed to the side wall of the cylinder (101); Two electric slides (202) are fixed to the top of the connecting seat (201); Two connecting rods (203) are rotatably connected to the moving ends of two electric slides (202), and the ends of the two connecting rods (203) are rotatably connected to mounting plates (204). Two second shafts (209) are rotatably connected to two mounting plates (204) respectively; Mounting roller (205), which is fixed to two second shafts (209); Two transmission components are connected to two mounting plates (204), respectively.

6. A synchronous injection rotary nozzle device for trenchless pipeline repair according to claim 5, characterized in that, The transmission assembly includes: Two gears (208) are rotatably mounted on the side wall of the mounting plate (204) and the two gears (208) mesh with each other; The first shaft (207) is rotatably mounted on the side wall of the mounting plate (204), and one of the gears (208) is fixed to the second shaft (209), and the other gear (208) is fixed to the first shaft (207); A rubber wheel (206) is fixed to a first shaft (207).

7. A synchronous injection rotary nozzle device for trenchless pipeline repair according to claim 5, characterized in that, Two of the mounting rollers (205) are fixedly fitted with cleaning rollers, and the two cleaning rollers are symmetrically arranged. The other two mounting rollers (205) are fixedly fitted with grinding rollers, and the two grinding rollers are symmetrically arranged.

8. A synchronous injection rotary nozzle device for trenchless pipeline repair according to claim 1, characterized in that, The repair component includes: An annular seat (401) is fixedly sleeved on the cylindrical body (101); Two hydraulic push rods (402) are fixed to an annular seat (401), and a support plate (403) is fixed to the telescopic end of each hydraulic push rod (402) by bolts. A pneumatic push rod (404) is fixed to the telescopic end of one of the hydraulic push rods (402); Water supply pipe (405), the water supply pipe (405) is fixed on the telescopic end of the pneumatic push rod (404), and a round hole is opened on the support plate (403) near the water supply pipe (405), and the water supply pipe (405) passes through the round hole; A delivery pipe (408) is fixed inside a water delivery pipe (405); A retaining ring (412) is fixed to the end of the delivery pipe (408) and the second check valve (409) by means of threads; A fixed seat (410) is fixed to a fixed ring (412), and the fixed seat (410) is connected to a conveying pipe (408); Multiple third check valves (411) are provided through the side wall of the fixed seat (410); Multiple second check valves (409) are provided through the side wall of the water supply pipe (405); Two connecting pipes (406), one of which penetrates the inner wall of the water supply pipe (405) and the other of which penetrates the inner wall of the delivery pipe (408), and a first one-way valve (407) is provided through each of the connecting pipes (406). Three plates (701), all three plates (701) are fixed to the inner wall of the cylinder (101); Two storage cylinders (702) are fixed to two plates (701). A piston (706) is slidably disposed on the inner wall of each storage cylinder (702). A transmission rod (703) is fixed on the side wall of each piston (706). The two storage cylinders (702) are respectively connected to two connecting pipes (406). One of the storage cylinders (702) is used to store water, and the other storage cylinder (702) is used to store polyurethane polymers. An electric push rod (705) is fixed to another plate (701); A transmission plate (704) is fixed on the telescopic end of an electric push rod (705), and the transmission plate (704) and two transmission rods (703) are fixed.

9. A synchronous injection rotary nozzle device for trenchless pipeline repair according to claim 1, characterized in that, The spraying assembly includes: Sleeve (502), the sleeve (502) is fixed on the side wall of the connecting seat (501), and the sleeve (502) and the connecting seat (501) are connected; Hollow rod (503), the hollow rod (503) is slidably disposed inside sleeve (502); Two connecting plates (504) are respectively fixedly sleeved on the sleeve (502) and the hollow rod (503); The first spring (505) is fixed between the two connecting plates (504); Two second support plates (509) are fixed on the connecting plate (504) near the hollow rod (503), and the two second support plates (509) are symmetrically arranged. Each second support plate (509) is fixed with a support frame (510), and each support frame (510) is provided with a roller at its end. Two first support plates (506) are fixed on the connecting plate (504) near the hollow rod (503), and the two first support plates (506) are symmetrically arranged. Each first support plate (506) is fixed with a nozzle (507). Two feed pipes (508) are provided through the side wall of the hollow rod (503), and the two feed pipes (508) are respectively connected to two nozzles (507); A sealing block (512) is slidably disposed inside a hollow rod (503); The second spring (511) is fixed on the inner wall of the hollow rod (503), and the second spring (511) and the sealing block (512) are fixed.

10. A synchronous injection rotary nozzle device for trenchless pipeline repair according to claim 1, characterized in that, The hollow seat (301) has multiple exhaust holes (304) on its side wall, and multiple air supply pipes (305) are provided through the inner wall of the hollow seat (301), and all multiple air supply pipes (305) are connected to the second pipe body (109).

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