A construction process for clearing blocked pipeline airbags

Abstract

The present invention discloses a construction process for clearing a blocked pipeline airbag, which includes the following steps: Step 1, airbag plugging; Step 2, diversion, drainage; Step 3, determining the position of the blocked airbag; Step 4, drilling and cutting the airbag and forming a grabbing barb; Step 5, pulling back and removing the airbag; By drilling the blocked pipeline and forming a barb on the other side of the airbag to grab the other side of the airbag, the present invention can firmly grab the airbag during the pulling-back process, making the pulling-back more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline cleaning, and specifically relates to a construction process for removing air bags blocking pipelines. Background Art

[0002] Currently, when cleaning or operating on downstream pipelines, the upstream pipelines need to be temporarily blocked to facilitate the construction of downstream pipelines. At this time, when temporarily blocking the upstream pipelines, air bags are generally used for blocking. After the air bags are installed, they are connected to the outside through steel cables for fixation, that is, one end of the steel cable is connected to the air bag, and the other end extends to the outside and is tied near the pipeline wellhead. However, due to the complex composition of substances in the pipeline and external construction environment factors, the air bag may be damaged, resulting in air leakage of the air bag, or when the air bag is inflated, the air bag does not tightly abut against the inner wall of the pipeline. Therefore, when the water flow in the pipeline is large and the end of the external steel cable is not tied tightly and becomes loose, the air bag is likely to flow into the downstream pipeline with the water flow. At the same time, because the downstream pipeline has a small diameter and is long, the air bag cannot flow out of the downstream pipeline. Ordinary hooks are difficult to hook out the air bag, and due to the small diameter, people cannot climb into the pipeline to take out the air bag. For this reason, we designed a construction process for removing air bags blocking pipelines for this situation.

[0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0004] The purpose of the present invention is to provide a construction process for removing air bags blocking pipelines, so as to solve the problem that the blocking air bag slips into the small-diameter pipeline downstream due to accidents, causing blockage to the downstream pipeline and being difficult to be taken out, as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A construction process for removing air bags blocking pipelines, including the following steps:

[0006] Step 1: Block the upstream pipeline opening and the downstream pipeline end;

[0007] Step 2: Drain the water flow in the blocked downstream pipeline and dredge the blocked pipeline;

[0008] Step 3: Determine the position of the blocked air bag;

[0009] Place the air bag removal device equipped with a camera into the pipeline and move it in the pipeline to determine the position of the blocked air bag through the images captured by the camera;

[0010] Step 4: Drill and cut the air bag and form a grasping barb;

[0011] After determining the position of the blocked airbag, drill the blocked airbag with a drill bit on the cleaning unit carried by the airbag cleaning device, and pass through the blocked airbag from the drilling position to the other side of the blocked airbag through the backhook assembly on the cleaning unit carried by the airbag cleaning device, and grab the blocked airbag;

[0012] Step Five: Drag back and take out the airbag;

[0013] The airbag cleaning device drags back the grabbed blocked airbag to the pipe orifice.

[0014] Preferably, a steering unit is arranged between the camera and the cleaning unit, which is used to convert the positions of the camera and the cleaning unit when operating from Step Three to Step Four.

[0015] Preferably, the steering unit includes:

[0016] A synchronous moving part. When the camera and the cleaning unit are adjusted, the synchronous moving part will drive the camera and the cleaning unit to move synchronously, that is, when the camera moves forward out of the airbag cleaning device, the cleaning unit moves back into the airbag cleaning device, and vice versa;

[0017] A differential speed adjusting part. Since the cleaning unit is longer than the camera, when the camera and the cleaning unit move synchronously, the differential speed adjusting part can make the moving speed of the cleaning unit faster than that of the camera.

[0018] Preferably, a telescopic assembly is further arranged on the backhook assembly for realizing the telescoping of the backhook assembly;

[0019] Among them, the telescopic assembly includes: a sleeve and an inner rod. The sleeve is fixedly arranged at the end of the airbag cleaning device, the inner rod is slidably arranged in the sleeve, the inner rod slides in the sleeve through an electric telescopic rod, and the backhook assembly is arranged between the inner rod and the sleeve.

[0020] Preferably, the backhook assembly includes:

[0021] Backhook plates, which are provided in multiple groups and are arranged in an array on the inner rod. The multiple groups of backhook plates are rotatably arranged on the inner rod through a rotating shaft. A rotating shaft seat for placing the rotating shaft is arranged on the inner rod. The backhook plates are arranged in an L shape, the rotating shaft is arranged at the L-shaped end of the backhook plate, and a torsion spring is arranged on the rotating shaft for keeping the multiple groups of backhook plates parallel to the outer surface of the sleeve under normal conditions;

[0022] An ejecting part is arranged inside the inner rod far from the rotating shaft end, which is used to eject the backhook plate at a certain angle after the inner rod extends out. An ejecting groove ejected by the ejecting part is arranged at the end of the sleeve;

[0023] The angle limiting member is arranged between the rotating shaft and the rotating shaft seat and is used to limit the rotation angle of the hook-back plate so that the rotation angle of the hook-back plate does not exceed [specific angle] degrees.

[0024] Preferably, a power unit is further arranged at the end of the airbag cleaning device for realizing the movement of the airbag cleaning device in the pipeline.

[0025] Among them, the power unit includes:

[0026] The water inlet pipe is connected to the airbag cleaning device at one end, wound around the winding cylinder at the other end, and its water inlet end is connected to an external water pump.

[0027] The high-pressure injector is arranged at the end of the airbag cleaning device, and injection holes are arranged at its rear end.

[0028] Preferably, a support unit is further arranged on the airbag cleaning device for forming a support between the airbag cleaning device and the inner wall of the pipeline for movement.

[0029] Among them, the support unit includes:

[0030] There are two groups of support disks, which are symmetrically and fixedly arranged in the airbag cleaning device respectively.

[0031] There are multiple groups of support legs, which are rotatably and circularly arranged on the airbag cleaning device at the position of the support disk. A walking wheel is arranged at the end of the support leg far away from the airbag cleaning device.

[0032] Elastic support members are arranged between each support leg and the support disk.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] After drilling the blocked pipeline, the present invention forms a barb on the other side of the airbag to firmly grasp the airbag when the airbag is towed back, so that the tow-back is more stable.

[0035] When determining the position of the airbag and the drilling step, the present invention sets a conversion unit at the end of the walking unit, which can switch the camera and the cleaning unit, thereby increasing the functions of the walking unit and not affecting the conflict between the two functions in different steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic flow chart of this embodiment;

[0037] Figure 2 It is a schematic diagram of the overall structure of this embodiment;

[0038] Figure 3 It is a schematic connection diagram of the walking unit and the cleaning unit of this embodiment;

[0039] Figure 4 Schematic diagram of the connection between the cleaning unit and the support unit in this embodiment;

[0040] Figure 5 Internal sectional view of the adjusting and fixing member on the support unit in this embodiment;

[0041] Figure 6 Schematic diagram of the connection between the back-hooking component and the inner rod in this embodiment;

[0042] Figure 7 Schematic diagram of the principle of forming a barb when the back-hooking plate moves back in this embodiment;

[0043] Figure 8 Schematic diagram of the structure at the conversion unit in this embodiment;

[0044] Figure 9 is Figure 4 Enlarged view of location A in

[0045] Figure 10 is Figure 4 Enlarged view of location B in

[0046] Figure 11 is Figure 4 Enlarged view of location C in

[0047] Reference numerals: 1 - traveling unit; 2 - support unit; 21 - support disk; 22 - support leg; 221 - support outer rod; 222 - support inner rod; 223 - adjusting and fixing member; 2231 - fixing groove; 2232 - fixing rod; 2233 - second elastic member; 2234 - pressing protrusion; 23 - elastic support member; 231 - sliding cylinder; 232 - sliding rod; 233 - first elastic member; 234 - collar; 235 - sliding column; 236 - limiting sliding plate; 237 - limiting sliding groove; 3 - power unit; 31 - water inlet pipe; 32 - high-pressure injector; 33 - injection hole; 34 - winding drum; 4 - cleaning unit; 41 - drill bit; 42 - telescopic assembly; 421 - sleeve; 422 - inner rod; 43 - back-hooking assembly; 431 - back-hooking plate; 432 - rotating shaft; 433 - rotating shaft seat; 434 - ejecting member; 4341 - ejecting rod; 4342 - third elastic member; 435 - angle limiting member; 4351 - rotating arc block; 4352 - limiting block; 436 - ejecting groove; 5 - camera; 51 - connecting rod; 6 - commutation unit; 61 - first tooth groove; 62 - second tooth groove; 63 - differential adjustment tooth. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] Please refer to Figure 1 , the present invention provides a technical solution: a construction process for clearing a blocked pipeline airbag, including the following steps:

[0050] Step 1: Block the upstream pipeline opening and the downstream pipeline end.

[0051] Step 2: Drain the water flow in the blocked downstream pipeline and dredge the blocked pipeline.

[0052] Step 3: Determine the position of the blocked airbag.

[0053] Place the airbag clearing device equipped with the camera 5 into the pipeline and move it within the pipeline to determine the position of the blocked airbag through the images captured by the camera 5.

[0054] Step 4: Drill and cut the airbag and form a grasping barb.

[0055] After determining the position of the blocked airbag, drill the blocked airbag with the drill bit 41 on the clearing unit 4 carried by the airbag clearing device, and pass the hook assembly 43 on the clearing unit 4 carried by the airbag clearing device through the blocked airbag from the drilling position to the other side of the blocked airbag, and hook and grab the blocked airbag.

[0056] Step 5: Drag back and remove the airbag.

[0057] The airbag clearing device drags back the hooked blocked airbag to the pipe orifice.

[0058] Wherein, a steering unit 6 is arranged between the camera 5 and the clearing unit 4, and is used to convert the positions of the camera 5 and the clearing unit 4 when operating from Step 3 to Step 4.

[0059] In addition, the steering unit 6 includes:

[0060] A synchronous moving member. When the camera 5 and the clearing unit 4 are adjusted, the synchronous moving member will drive the camera 5 and the clearing unit 4 to move synchronously, that is, when the camera 5 moves forward out of the airbag clearing device, the clearing unit 4 moves back into the airbag clearing device, and vice versa.

[0061] Differential adjustment component. Since the cleaning unit 4 is longer than the camera 5, when the camera 5 and the cleaning unit 4 move synchronously, the differential adjustment component can make the moving speed of the cleaning unit 4 faster than that of the camera 5.

[0062] Wherein, a telescopic component 42 is further arranged on the hooking component 43 for realizing the telescoping of the hooking component 43;

[0063] Wherein, the telescopic component 42 includes: a sleeve 421 and an inner rod 422. The sleeve 421 is fixedly arranged at the end of the airbag cleaning device. The inner rod 422 is slidably arranged in the sleeve 421. The inner rod 422 slides in the sleeve through an electric telescopic rod. The hooking component 43 is arranged between the inner rod 422 and the sleeve 421.

[0064] Meanwhile, the hooking component 43 includes:

[0065] Hooking plates 431, which are provided in multiple groups and arranged in an array on the inner rod 422. The multiple groups of hooking plates 431 are rotatably arranged on the inner rod 422 through a rotating shaft 432. A rotating shaft seat 433 for the rotation of the rotating shaft 432 is arranged on the inner rod 422. The hooking plates 431 are arranged in an L shape. The rotating shaft 432 is arranged at the L-shaped end of the hooking plate 431. A coil spring is arranged on the rotating shaft 432 for enabling the multiple groups of hooking plates 431 to be parallel to the outer surface of the sleeve 421 under normal conditions;

[0066] Ejecting member 434, which is arranged inside the inner rod 422 at the end far from the rotating shaft 432. After the inner rod 422 extends out, it is used to eject the hooking plate 431 by a certain angle. An ejecting groove 436 for the ejecting of the ejecting member 434 is arranged at the end of the sleeve 421;

[0067] Angle limiting member 435, which is arranged between the rotating shaft 432 and the rotating shaft seat 433 for limiting the rotation angle of the hooking plate 431 so that the rotation angle of the hooking plate 431 is not greater than 90 degrees.

[0068] In addition, a power unit 3 is further arranged at the end of the airbag cleaning device for realizing the movement of the airbag cleaning device in the pipeline;

[0069] Wherein, the power unit 3 includes:

[0070] Water inlet pipe 31, one end of which is connected to the airbag cleaning device, and the other end is wound through a winding cylinder 34. Its water inlet end is connected to an external water pump;

[0071] High-pressure injector 32, which is arranged at the end of the airbag cleaning device, and a jet hole 33 is arranged at its rear end.

[0072] Finally, a support unit 2 is also provided on the airbag removal device, which is used to form a support between the airbag removal device and the inner wall of the pipeline for movement.

[0073] Among them, the support unit 2 includes:

[0074] Support plates 21, which are provided in two groups and are symmetrically and fixedly arranged inside the airbag removal device respectively;

[0075] Support legs 22, which are provided in multiple groups and are rotatably and circularly arranged on the airbag removal device at the position of the support plates 21. A walking wheel is provided at one end of the support leg 22 away from the airbag removal device;

[0076] Elastic support members 23, which are arranged between each support leg 22 and the support plate 21.

[0077] Embodiment 2

[0078] Please refer to Figure 2-11 , in which the same or corresponding components as those in Embodiment 1 adopt the corresponding reference numerals in Embodiment 1. For the sake of simplicity, the difference between this Embodiment 2 and Embodiment 1 is that this embodiment provides an airbag removal device for blocking pipelines to achieve a complete implementation manner of Embodiment 1:

[0079] Please refer to Figure 2-4 , the present invention provides a technical solution: an airbag removal device for blocking pipelines, including a walking unit 1, and further including:

[0080] A support unit 2, which is arranged on the walking unit 1 and is used to form a support between the walking unit 1 and the inner wall of the pipeline, so that the walking unit 1 can adapt to pipelines with different diameters and can slide inside the pipeline;

[0081] A power unit 3, which is arranged at one end of the walking unit 1 and is used to drive the whole walking unit 1 to walk inside the pipeline;

[0082] A cleaning unit 4, which is arranged at the other end of the walking unit 1 and is used to punch holes in the airbag when the power unit 3 drives the walking unit 1 to move to the position of the airbag, and then pass through the airbag from the hole position. When moving back, a hooking structure is formed, and under the action of the power unit 3, the airbag is pulled out and recycled;

[0083] A camera 5, which is arranged at one end of the walking unit 1 where the cleaning unit 4 is located and is used to determine the position of the blocked airbag;

[0084] A conversion unit 6, which is arranged between the camera 5 and the cleaning unit 4 and is used to switch between the cleaning unit 4 and the camera 5;

[0085] Among them, the cleaning unit 4 includes:

[0086] The drill bit 41 is arranged at the end of the walking unit 1 through the telescopic assembly 42 and is used for drilling holes in the airbag blocking the pipeline;

[0087] The hooking component 43 is arranged on the telescopic assembly 42 and is used for driving the drill bit 41 to move forward continuously after the telescopic assembly 42 passes through the hole, and then moving back to make the hooking component 43 open, forming a barb on the other side of the airbag. When the power unit 3 drives the whole to move back, the airbag is pulled out.

[0088] Please refer to Figure 4-5 and Figure 11 , the support unit 2 includes:

[0089] There are two groups of support disks 21, which are symmetrically and fixedly arranged in the walking unit 1 respectively;

[0090] There are multiple groups of support legs 22, which are rotatably and circularly arrayed on the walking unit 1 at the position of the support disk 21. A walking wheel is arranged at one end of the support leg 22 away from the walking unit 1;

[0091] The elastic support member 23 is arranged between each support leg 22 and the support disk 21;

[0092] During use, the elastic support member 23 can support each support leg 22 to open, so as to adapt to pipelines with different diameters. The walking wheels at the ends of the support legs 22 can be attached to the pipe wall to move forward.

[0093] Please refer to Figure 2 , the power unit 3 includes:

[0094] The water inlet pipe 31 is connected to one end of the walking unit 1, and the other end is wound through the winding cylinder 34. Its water inlet end is connected to an external water pump;

[0095] The high-pressure injector 32 is arranged at the end of the walking unit 1, and a spray hole 33 is arranged at its rear end;

[0096] During use, the external water pump intakes water into the high-pressure injector 32 through the inlet pipe 31, and then sprays it out from the spray hole 33 at the end of the high-pressure injector 32. Thus, when the device is placed in the blocked pipeline, a reverse water flow is formed to drive the whole device to move forward in the pipeline. At the same time, the water inlet pipe 31 rotates and extends out synchronously on the winding coil. At the same time, after the cleaning unit 4 hooks the airbag, the water inlet pipe 31 is wound up by the winding cylinder 34, and the device can be pulled back, and the airbag is pulled back for recovery synchronously.

[0097] Please refer to Figure 4 、 6-8, the telescopic component 42 includes: a sleeve 421 and an inner rod 422. The sleeve 421 is fixedly arranged at the end of the walking unit 1, the inner rod 422 is slidably arranged in the sleeve 421, and the inner rod 422 slides in the sleeve through an electric telescopic rod. The hook-back component 43 is arranged between the inner rod 422 and the sleeve 421.

[0098] Please refer to Figure 5 , the support leg 22 includes a support outer rod 221 and a support inner rod 222. One end of the support outer rod 221 is rotatably arranged on the walking unit 1, and the other end is slidably arranged with the support inner rod 222. The walking wheel is rotatably arranged at one end of the support inner rod 222 away from the support outer rod 221 to facilitate the movement of the whole device. An adjustment fixing member 223 is arranged between the support outer rod 221 and the support inner rod 222 for adjusting and fixing the length of the support leg 22.

[0099] Please refer to Figure 11 , the elastic support member 23 includes:

[0100] A sliding cylinder 231, fixedly arranged on the support disk 21;

[0101] A sliding rod 232, limit-slidingly arranged in the sliding cylinder 231;

[0102] A first elastic member 233, arranged between the end of the sliding barrel and the sliding rod 232. The first elastic member 233 can be set as a compression spring;

[0103] A collar 234, fixedly arranged at the end of the sliding rod 232 away from the sliding cylinder 231. A sliding column 235 is sleeved in the collar 234. A limit sliding plate 236 is arranged on the support leg 22, and a limit sliding groove 237 for the sliding of the sliding column 235 is arranged on the limit sliding plate 236;

[0104] When the support unit 2 works, the first elastic member 233 can push the sliding rod 232 out of the sliding cylinder 231 and elongate it, and then the support leg 22 will rotate and open, so that the walking wheels on the support leg 22 are attached to the pipe wall, so that the whole device can be stably attached to the inner wall of the pipe.

[0105] Please refer to Figure 5 , 6 , the hook-back component 43 includes:

[0106] The hook-back plates 431 are provided in multiple groups and are arranged in an array on the inner rod 422. The multiple groups of the hook-back plates 431 are rotatably arranged on the inner rod 422 through a rotating shaft 432. A rotating shaft seat 433 for the rotating shaft 432 to rotate and place is arranged on the inner rod 422. The hook-back plates 431 are arranged in an L shape. The rotating shaft 432 is arranged at the L-shaped end of the hook-back plate 431. A torsion spring is arranged on the rotating shaft 432, so that the multiple groups of hook-back plates 431 can be kept parallel to the outer surface of the sleeve 421 under normal conditions;

[0107] The ejecting member 434 is arranged inside the inner rod 422 at the end far from the rotating shaft 432. After the inner rod 422 extends out, it is used to eject the hook-back plate 431 by a certain angle. An ejecting groove 436 ejected by the ejecting member 434 is arranged at the end of the sleeve 421;

[0108] The angle limiting member 435 is arranged between the rotating shaft 432 and the rotating shaft seat 433, and is used to limit the rotation angle of the hook-back plate 431, so that the rotation angle of the hook-back plate 431 is not greater than 90 degrees.

[0109] When performing the hook-back action, when the power unit 3 drives the whole device to move to the position of the airbag, the drill bit 41 starts to work to drill the airbag. At the same time, the power unit 3 continues to drive the drill bit 41 to move forward until the drill bit 41 and the telescopic assembly 42 pass through the hole drilled by the drill bit 41 to the other side of the airbag. At the same time, when the traveling unit 1 is in contact with the airbag, the power unit 3 stops working. At this time, the inner rod 422 extends under the action of the electric telescopic rod, driving the hook-back plate 431 on the inner rod 422 to continue to move until the ejecting member 434 ejects from the ejecting groove 436 of the sleeve 421, ejecting the hook-back plate 431 to rotate by a certain angle. At this time, the inner rod 422 moves back under the action of the electric telescopic rod. At the same time, since the hook-back plate 431 is ejected by a certain angle, it slowly opens during the backward movement. Thus, when the inner rod 422 completely moves back to the airbag, a hook-shaped claw is formed on the other side of the airbag. Therefore, when the power unit 3 drives the whole device to move back, the airbag can be firmly pulled back.

[0110] Please refer to Figure 5 , the adjusting and fixing member 223 includes:

[0111] The fixing grooves 2231 are uniformly formed on the supporting outer rod 221;

[0112] The fixing rods 2232 are limited and slidably arranged on the supporting inner rod 222 at the inner end of the supporting outer rod 221 close to the inner end;

[0113] The second elastic member 2233 is arranged at the lower end of the fixing rod 2232 and is used to provide the power for the fixing rod 2232 to pop out and cooperate with the fixing groove 2231 for fixing. The second elastic member 2233 can be set as a compression spring;

[0114] Press the protruding button 2234, which is arranged at the outer end of the fixing rod 2232 and is circular in shape;

[0115] When adjusting the length of the support leg 22, press the protruding button 2234 into the fixing groove 2231, then the inner support rod 222 can be pulled out and extended to another fixing groove 2231. The protruding button 2234 will pop out again to re-fix the adjusted length of the support leg 22, and adjusting the length of the support leg 22 can make the device adapt to a wider range of pipe inner diameters.

[0116] Please refer to Figure 9 、 10 , the ejecting member 434 includes:

[0117] The ejecting rod 4341 is slidably arranged on the inner rod 422 in a limited way;

[0118] The third elastic member 4342 is arranged at the lower end of the ejecting rod 4341 and is used to provide the power for the ejecting rod 4341 to eject. The third elastic member 4342 can be set as a compression spring.

[0119] Please refer to Figure 6 、 7 , the angle limiting member 435 includes:

[0120] The rotating arc block 4351 is fixedly arranged on the rotating shaft 432 and rotates concentrically with the rotating shaft 432;

[0121] The limiting block 4352 is fixedly arranged on the rotating shaft seat 433 to limit the rotation angle of the rotating arc block 4351;

[0122] When the hooking plate 431 rotates, the rotating arc block 4351 will rotate with the rotation of the rotating shaft 432. When it rotates to a 90-degree angle, it will be abutted by the limiting block 4352, thereby restricting the continuous rotation of the rotating shaft 432 and limiting the maximum rotation angle of the hooking plate 431.

[0123] Finally, the sleeve 421 is slidably arranged on the walking bracket 1, and a connecting rod 51 is arranged at the rear end of the camera 5. The camera 5 slides on the walking unit 1 through the connecting rod 51. Both the sleeve 421 and the connecting rod 51 slide through the sliding cylinders arranged in the walking bracket 1. Among them, the conversion unit 6 includes:

[0124] The first tooth groove 61 and the second tooth groove 61 are respectively arranged at the mutually close ends of the connecting rod 51 and the sleeve 421. A differential adjusting tooth 63 is arranged between the first tooth groove 61 and the second tooth groove 62. The differential adjusting tooth is composed of two groups of gears with different sizes, and at the same time constitutes a differential adjusting member. In addition, the first tooth groove 61, the second tooth groove 61 and the differential adjusting tooth 63 constitute a synchronous moving member. By arranging a motor on the gear shaft, the differential adjusting tooth 63 can be driven to rotate, so as to realize the conversion of the camera 5 and the cleaning unit 4;

[0125] As can be seen from the above, in this embodiment, by arranging the supporting unit 2, the power unit 3 and the cleaning unit 4 on the walking unit 1, the airbag can be quickly positioned and taken out. At the same time, by arranging the drill bit 41 and the backhook assembly 43 in the cleaning unit 4, the airbag can be drilled, and a backhook can be formed on the other side of the airbag to perform a large-area grasping and pasting on the airbag, so that the airbag can be more firmly pulled back and taken out, and the airbag can be more stable and prevented from detaching from the cleaning unit 4.

[0126] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0127] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction process for clearing a blocked pipeline airbag, characterized in that, It includes the following steps: Step 1, pipe plugging; Plug the upstream pipe opening and the downstream pipe end; Step 2, pumping and dredging; Pump out the water flow in the blocked downstream pipe and dredge the blocked pipe; Step 3, determine the position of the blocking airbag; Place the airbag removal device equipped with a camera (5) into the pipe and move it in the pipe, and determine the position of the blocking airbag through the images captured by the camera (5); Step 4, drill and cut the airbag and form a grabbing barb; After determining the position of the blocking airbag, use the drill bit (41) on the removal unit (4) carried by the airbag removal device to drill the blocking airbag, and use the backhook assembly (43) on the removal unit (4) carried by the airbag removal device to pass through the blocking airbag from the drilling position to the other side of the blocking airbag and grab the blocking airbag; Step 5, pull back and remove the airbag; The airbag removal device pulls back the grabbed blocking airbag to the pipe orifice; Wherein, a steering unit (6) is arranged between the camera (5) and the removal unit (4) for converting the positions of the camera (5) and the removal unit (4) during the operation from Step 3 to Step 4; The steering unit (6) includes: A synchronous moving member. When the camera (5) and the removal unit (4) are adjusted, the synchronous moving member will drive the camera (5) and the removal unit (4) to move synchronously, that is, when the camera (5) moves forward out of the airbag removal device, the removal unit (4) moves back into the airbag removal device, and vice versa; A differential speed adjusting member for accelerating the moving speed of the removal unit (4) so that the removal unit (4) and the camera (5) with different lengths move into place synchronously.

2. The construction process for clearing a blocked pipeline airbag according to claim 1, characterized in that, An expansion and contraction assembly (42) is further arranged on the backhook assembly (43) for realizing the expansion and contraction of the backhook assembly (43); Wherein, the expansion and contraction assembly (42) includes: a sleeve (421) and an inner rod (422). The sleeve (421) is fixedly arranged at the end of the airbag removal device, the inner rod (422) is slidably arranged in the sleeve (421), the inner rod (422) slides in the sleeve through an electric telescopic rod, and the backhook assembly (43) is arranged between the inner rod (422) and the sleeve (421).

3. A construction process for clearing a blocked pipeline airbag according to claim 2, characterized in that, The backhook assembly (43) includes: Backhook plates (431), multiple groups of which are arranged in an array on the inner rod (422). The multiple groups of backhook plates (431) are rotatably arranged on the inner rod (422) through a rotating shaft (432). A rotating shaft seat (433) for the rotation of the rotating shaft (432) is arranged on the inner rod (422). The backhook plates (431) are arranged in an L shape, the rotating shaft (432) is arranged at the L-shaped end of the backhook plate (431), and a torsion spring is arranged on the rotating shaft (432) so that the multiple groups of backhook plates (431) can be kept parallel to the outer surface of the sleeve (421) under normal conditions; An ejecting member (434) is arranged inside the inner rod (422) at the end far from the rotating shaft (432) for ejecting the backhook plate (431) at a certain angle after the inner rod (422) extends out. An ejecting groove (436) ejected by the ejecting member (434) is arranged at the end of the sleeve (421); An angle limiting member (435) is disposed between the rotating shaft (432) and the rotating shaft seat (433) for limiting the rotation angle of the hook-back plate (431) so that the rotation angle of the hook-back plate (431) is not greater than 90 degrees.

4. A construction process for clearing a blocked pipeline airbag according to claim 1, characterized in that, A power unit (3) is further disposed at the end of the airbag cleaning device for enabling the airbag cleaning device to move within the pipeline; Wherein, the power unit (3) includes: A water inlet pipe (31) with one end connected to the airbag cleaning device and the other end wound through a winding cylinder (34), and its water inlet end is connected to an external water pump; A high-pressure injector (32) is disposed at the end of the airbag cleaning device, and a spray hole (33) is provided at its rear end.

5. A construction process for clearing a blocked pipeline airbag according to claim 1, characterized in that, A support unit (2) is further disposed on the airbag cleaning device for forming a support between the airbag cleaning device and the inner wall of the pipeline for movement; Wherein, the support unit (2) includes: Two groups of support disks (21) are symmetrically and fixedly disposed within the airbag cleaning device; Multiple groups of support legs (22) are rotatably and circularly arrayed on the airbag cleaning device at the position of the support disk (21), and a walking wheel is provided at one end of the support leg (22) away from the airbag cleaning device; An elastic support member (23) is disposed between each support leg (22) and the support disk (21).

Images