Pipeline non-excavation repairing device and technology based on CIPP

Abstract

The invention relates to the technical field of pipeline repairing devices, in particular to a pipeline trenchless repairing device and process based on CIPP. The repairing device comprises a repairing assembly which is of a hollow structure and used for repairing the sealing performance of the deeply-buried underground pipeline, sealing covers used for keeping the sealing performance of the repairing assembly are arranged at the two ends of the repairing assembly correspondingly, communicating assemblies are inserted into the portions, in the two sealing covers, of the two ends of the repairing assembly correspondingly, and the sealing covers penetrate through the interior and the exterior of the repairing assembly; the hot water injection device is used for injecting hot water into a cavity of the repairing assembly; after the forked pipe inflates the pressure-bearing cavity, the pressure-bearing plate located near the air outlet of the forked pipe is driven by air pressure to drive the anti-skid plate to slide in the radial centrifugal direction of the inner film layer, so that the anti-skid plate easily slides out of the limiting groove, and during the period, the spring deforms to store elastic potential energy; and the anti-skid plate pushes the inner wall of the inner film layer to fix the outer wall of the outer film layer in the to-be-repaired pipeline, so that the air bag cloth is prevented from axially deviating after the inner film layer is filled with hot water.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline repair device, in particular to a pipeline trenchless repair device and process based on CIPP. BACKGROUND

[0002] The excavation repair needs to destroy the ground facilities, and produces a large amount of slag and dust, which pollutes the surrounding environment. At the same time, the construction process will occupy the road, causing traffic congestion, especially in the city center and other traffic busy sections. The use of CIPP, i.e. in-situ curing method to repair the pipeline can avoid the above problems.

[0003] When using the existing CIPP pipeline repair device to repair the pipeline buried underground, the hose needs to be placed in the pipeline to be repaired, and then the air bag is inflated to fix the two ends of the hose in the pipeline to be repaired, and then hot water is filled into the hose to make the thermosetting resin in the hose solidify, so as to repair the pipeline with cracks. However, the existing air bag is fixed by friction force, and when hot water is filled into the hose, the pressure state of different positions of the hose changes, the air bag is limited by its material, and after contacting with hot water, it will also change to different degrees, and the air bag will also move axially in the hose, thereby affecting the sealing of the hose, making the hot water flowing out of the hose, and finally causing the hose to be unstable in the pipeline to be repaired.

[0004] In view of this, we propose a pipeline trenchless repair device and process based on CIPP to improve the deficiencies in the prior art. SUMMARY

[0005] One of the purposes of the present application is to provide a pipeline trenchless repair device based on CIPP, which solves the problem that the existing air bag is fixed by friction force, and when hot water is filled into the hose, the pressure state of different positions of the hose changes, the air bag is limited by its material, and after contacting with hot water, it will also change to different degrees, and the air bag will also move axially in the hose, thereby affecting the sealing of the hose, making the hot water flowing out of the hose, and finally causing the hose to be unstable in the pipeline to be repaired, i.e.

[0006] After the air bag contacts with hot water, the problems of axial displacement and sealing damage are prone to occur.

[0007] To achieve the above object, the CIPP-based pipeline trenchless repair device comprises a repair assembly for repairing the sealing of the hollow structure of the deep-buried underground pipeline, both ends of the repair assembly are provided with sealing covers for maintaining the sealing thereof, both ends of the repair assembly are inserted into the two sealing covers, the sealing covers penetrate the inside and outside of the repair assembly, and hot water is injected into the cavity of the repair assembly; both ends of the two communication assemblies located inside the repair assembly are provided with positioning sealing assemblies, each positioning sealing assembly is communicated with an inflation assembly for adjusting the air pressure inside the positioning sealing assembly on the side close to the outside of the repair assembly, the inflation assembly comprises a plurality of air outlets, and the positioning sealing assembly is provided with an anti-skid assembly at each air outlet of the inflation assembly to fix the positioning sealing assembly to the inner wall of the repair assembly.

[0008] The inflation assembly is used to connect an external inflation device such as an air pump to inflate the positioning sealing assembly, and due to the influence of the structural material, each anti-skid assembly is subjected to the pushing force of the increased air pressure introduced by the plurality of air outlets of the inflation assembly to make centrifugal movement along the radial direction of the repair assembly, and the positioning sealing assembly can position both ends of the repair assembly to the inner wall of the pipeline to be repaired only after the space inside the positioning sealing assembly is gradually filled with the inflated gas.

[0009] Although the positioning sealing assembly and the anti-skid assembly both have the function of fixing both ends of the repair assembly to the inner wall of the pipeline to be repaired, if only the anti-skid assembly is used for fixation, the hot water in the repair assembly is prone to flowing out due to the thermal expansion of the repair assembly, and if only the positioning sealing assembly is used, the sealing of the repair assembly is ensured, but the positioning sealing assembly is prone to axial movement after the hot water is filled into the repair assembly, so that the position of the repair assembly in the pipeline to be repaired cannot be fixed.

[0010] In the above technical solution, the repair assembly comprises an outer membrane layer, the outer membrane layer is used to fit the inner wall of the pipeline to be repaired, and an inner membrane layer is arranged in the outer membrane layer, the inner membrane layer is used to expand and push the outer membrane layer to expand outward after being heated.

[0011] An enhanced layer is arranged between the outer membrane layer and the inner membrane layer, and the enhanced layer is mixed with a thermosetting material, and the thermosetting material can be selected from resin, and the solidification temperature range of the resin is 85-95℃.

[0012] The communication assembly comprises a water pipe, the water pipe is used to communicate the inside and outside of the inner membrane layer, and the water pipe is made of rigid material, and the shape of the water pipe does not change when hot water is introduced into the inner membrane layer through the water pipe.

[0013] In another technical solution, the positioning sealing assembly comprises a positioning plate and a limiting plate, and an air bag cloth is integrally arranged between the positioning plate and the limiting plate, and the inner wall of the positioning plate, the limiting plate and the air bag cloth and the outer wall of the water pipe form a pressure bearing cavity.

[0014] The positioning plate and the limiting plate are integrally arranged with the outer wall of the water pipe and are made of the same material, the positioning plate is located close to the inner wall of the sealing cover, and the limiting plate is located away from the inner wall of the sealing cover.

[0015] In the above solution, the inflation assembly comprises a main pipe, a plurality of branch pipes are communicated with one end of the main pipe away from the external inflation device, and the plurality of branch pipes are used to communicate the main pipe with the pressure bearing cavity.

[0016] Based on the above solution, the anti-skid assembly comprises a limiting groove opened in the limiting plate, the limiting groove is communicated with the pressure bearing cavity, an anti-skid plate is slidably connected in the limiting groove, the height of the anti-skid plate is greater than the height of the limiting groove, a pressure bearing plate is fixedly connected to one side of the anti-skid plate close to the pressure bearing cavity, the pressure bearing plate is located on the air passage of the branch pipe, and elastic members are arranged on both sides of the anti-skid plate, and the elastic members are used to drive the anti-skid plate to reset after the anti-skid plate slides out of the limiting groove.

[0017] The elastic member comprises a guide rod arranged in parallel with the sliding direction of the anti-skid plate, the anti-skid plate is slidably connected with the two guide rods respectively, and a spring is sleeved on the outer periphery of the guide rod and used to reset the anti-skid plate after displacement.

[0018] The second object of the present application is to provide a process for a CIPP-based pipe trenchless repair device, comprising the following steps:

[0019] S1, pipe cleaning: detecting and cleaning the pipe to be repaired to ensure that the inner wall of the pipe is clean and free of sundries. At the same time, according to the size and repair requirements of the pipe, a suitable repair assembly and resin are selected;

[0020] S2, hose installation: using a hose inversion device to send the resin-soaked repair assembly into the pipe to be repaired, and ensuring that the two ends of the inner membrane layer are well sealed;

[0021] S3, hot water circulation and solidification: starting the heating device and the hot water circulation system, heating the hot water to 80-95 DEG C to solidify the resin, and delivering the hot water into the inner membrane layer through the hot water circulation system. The hot water circulates in the inner membrane layer, and the resin gradually solidifies to form a new inner lining layer. During the solidification process, the pressure control system monitors and adjusts the pressure in the inner membrane layer in real time to ensure the solidification effect and construction safety;

[0022] S4, cooling: after the resin solidification is completed, the heating device and the hot water circulation system are stopped, and the enhanced layer is naturally cooled. After cooling, the sealing covers at both ends of the inner membrane layer are removed.

[0023] Based on the above description, compared with the prior art, the beneficial effects of the present application are:

[0024] When the branch pipe is inflated into the pressure bearing cavity, the pressure bearing plate near the gas outlet of the branch pipe is driven by the gas pressure, driving the anti-skid plate to slide along the radial centrifugal direction of the inner membrane layer, so that the anti-skid plate is easy to slide out of the limiting groove, and the spring is deformed to store elastic potential energy during this period. The anti-skid plate pushes the inner wall of the inner membrane layer to fix the outer wall of the outer membrane layer in the pipeline to be repaired, thereby preventing the air bag cloth from being axially offset after the hot water is filled in the inner membrane layer. Because the anti-skid plate is made of rigid material, its friction coefficient with the inner wall of the inner membrane layer remains unchanged. As long as the gas pressure pushing the pressure bearing plate is sufficient, the limiting plate will not drive the air bag cloth to move axially. The air bag cloth is an elastic material, and its shape will change after the hot water is filled in the inner membrane layer. Therefore, the friction coefficient between the air bag cloth and the inner wall of the inner membrane layer will change, which may increase or decrease, and cannot be controlled. Even if the gas pressure in the pressure bearing cavity is increased, it cannot guarantee that there is enough friction between the air bag cloth and the inner wall of the inner membrane layer to prevent axial movement. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and are used to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0026] Figure 1 It is a perspective view of the overall structure of the present application;

[0027] Figure 2 It is a partial cutaway perspective view of the present application;

[0028] Figure 3 It is a partial cutaway left view of the present application;

[0029] Figure 4 It is a partial cutaway exploded view of the repair assembly of the present application;

[0030] Figure 5 It is a cutaway perspective view of the communication assembly of the present application;

[0031] Figure 6 It is a cutaway front view of the communication assembly of the present application;

[0032] Figure 7 It is a cutaway perspective view of the positioning and sealing assembly of the present application;

[0033] Figure 8 It is a cutaway front view of the inflation assembly of the present application;

[0034] Figure 9 It is a cutaway perspective view of the inflation assembly of the present application;

[0035] Figure 10 Figure 1 is a sectional front view of the anti-skid assembly of the present application;

[0036] Figure 11 Figure 2 is a left structural view of the anti-skid assembly of the present application;

[0037] Figure 12 Figure 3 is a second left structural view of the anti-skid assembly of the present application;

[0038] Figure 13 Figure 4 is a sectional view of the anti-skid assembly of the present application; Figure 12 Figure 5 is an enlarged view of A in Figure 4.

[0039] Figure 6 is a schematic view of the anti-skid assembly of the present application.

[0040] 100, repair assembly; 110, outer membrane layer; 120, inner membrane layer; 130, reinforcing layer;

[0041] 200, sealing cover;

[0042] 300, communication assembly; 310, water pipe;

[0043] 400, positioning and sealing assembly; 410, positioning plate; 420, limiting plate; 430, air bag cloth;

[0044] 500, inflation assembly; 510, main pipe; 520, branch pipe;

[0045] 600, anti-skid assembly; 610, limiting groove; 620, anti-skid plate; 630, pressure bearing plate; 640, elastic member; 641, guide rod; 642, spring. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0047] Example 1: In the hose of the existing CIPP pipe repair device, the air bag is easily axially displaced and the seal is damaged after being in contact with hot water, please refer to Figures 1-3 .

[0048] The embodiment aims to provide a CIPP-based pipeline trenchless repair device, which comprises a repair assembly 100 for repairing the sealing of a hollow structure of a deep-buried underground pipeline, sealing covers 200 arranged at both ends of the repair assembly 100 for maintaining the sealing thereof, and communication assemblies 300 inserted into the sealing covers 200 at both ends of the repair assembly 100, the sealing covers 200 penetrating the repair assembly 100 from the inside to the outside, for injecting hot water into the cavity of the repair assembly 100, and positioning sealing assemblies 400 arranged at one end of each of the communication assemblies 300 inside the repair assembly 100, each of the positioning sealing assemblies 400 being communicated with an inflation assembly 500 for adjusting the air pressure inside the positioning sealing assembly 400 at one side close to the outside of the repair assembly 100, the inflation assembly 500 comprising a plurality of air outlets, and an anti-skid assembly 600 arranged at each air outlet of the inflation assembly 500 inside the positioning sealing assembly 400, so that the positioning sealing assembly 400 is fixed to the inner wall of the repair assembly 100.

[0049] The inflation assembly 500 is used for connecting an external inflation device, such as an air pump, to inflate the positioning sealing assembly 400, and due to the influence of the structural material, each anti-skid assembly 600 is subjected to the centrifugal movement along the radial direction of the repair assembly 100 under the driving of the increased air pressure from the air outlets of the inflation assembly 500, and the positioning sealing assembly 400 can position the two ends of the repair assembly 100 to the inner wall of the pipeline to be repaired only after the space inside the positioning sealing assembly 400 is gradually filled with the air.

[0050] Although the positioning sealing assembly 400 and the anti-skid assembly 600 both have the function of fixing the two ends of the repair assembly 100 to the inner wall of the pipeline to be repaired, if only the anti-skid assembly 600 is used for fixation, the hot water in the repair assembly 100 is likely to flow out after the repair assembly 100 is heated and expanded, and if only the positioning sealing assembly 400 is arranged, the sealing of the repair assembly 100 is guaranteed, but the positioning sealing assembly 400 is likely to move axially after the hot water is filled into the repair assembly 100, so that the position of the repair assembly 100 in the pipeline to be repaired cannot be fixed.

[0051] Working principle: after the repair assembly 100 is inserted into the buried pipeline to be repaired, the inflation assembly 500 is connected with the external inflation equipment, the inside of the positioning and sealing assembly 400 is inflated, the two ends of the repair assembly 100 are fixed to the inner wall of the pipeline to be repaired, then the communication assembly 300 is connected with the external hot water circulation system, hot water is introduced into the repair assembly 100, on the one hand, the entire repair assembly 100 is heated and expanded to tightly adhere to the inner wall of the pipeline to be repaired, on the other hand, the thermosetting resin in the repair assembly 100 is cured, finally the hot water in the repair assembly 100 is emptied, the gas in the positioning and sealing assembly 400 is released, only the repair assembly 100 is left in the inside of the pipeline to be repaired, thereby the problem of pipeline leakage is repaired.

[0052] In the process of inflating the inside of the positioning and sealing assembly 400 by the inflation assembly 500, the plurality of anti-skid assemblies 600 are pushed by the air pressure, first contact the inner wall of the positioning and sealing assembly 400 and the repair assembly 100, and fix the two ends of the repair assembly 100 to the inner wall of the positioning and sealing assembly 400, the positioning and sealing assembly 400 can still maintain the sealing property of the repair assembly 100 in the case that there is a protrusion on the inner wall of the pipeline, preventing the hot water inside from flowing out, and the anti-skid assembly 600 ensures that the repair assembly 100 moves axially after the hot water is introduced into the repair assembly 100 and the state of the repair assembly 100 changes under pressure.

[0053] As shown in Figure 4 , the repair assembly 100 includes an outer membrane layer 110, the outer membrane layer 110 is used to adhere to the inner wall of the pipeline to be repaired, an inner membrane layer 120 is arranged in the outer membrane layer 110, the inner membrane layer 120 is used to expand and push the outer membrane layer 110 to expand outward after being heated.

[0054] The improvement lies in that a reinforcing layer 130 is arranged between the outer membrane layer 110 and the inner membrane layer 120, the reinforcing layer 130 is mixed with thermosetting material, the thermosetting material can be selected from resin, and the solidification temperature range of the resin is 85-95℃.

[0055] In implementation, the outer membrane layer 110 is a wear-resistant adhering execution layer, the material is selected from nitrile rubber, has high wear resistance and oil resistance, the inner membrane layer 120 is a high-temperature-resistant fluid transmission layer, the material is selected from silicone rubber, has good hot water resistance and flexibility, the reinforcing layer 130 is a resin mixed reinforcing structure, the base material is selected from glass fiber cloth, provides tensile strength and structural support, and the resin is selected from epoxy resin, is in liquid state at room temperature, and forms a rigid skeleton after being cured.

[0056] In Figure 5 and Figure 6 , the communication assembly 300 includes a water passing pipe 310, the water passing pipe 310 is used to communicate the inside and outside of the inner membrane layer 120, the material of the water passing pipe 310 is rigid material, and the shape of the water passing pipe 310 does not change when hot water is introduced into the inner membrane layer 120 through the water passing pipe 310.

[0057] Next, by Figure 7 Disclosed is a specific structure of the positioning sealing assembly 400, which comprises a positioning plate 410 and a limiting plate 420, and a gas bag cloth 430 is integrally arranged between the positioning plate 410 and the limiting plate 420, and the inner walls of the positioning plate 410, the limiting plate 420 and the gas bag cloth 430 and the outer wall of the water passing pipe 310 form a pressure bearing cavity.

[0058] Further, the positioning plate 410 and the limiting plate 420 are integrally arranged with the outer wall of the water passing pipe 310 and are made of the same material, the positioning plate 410 is located close to the inner wall of the sealing cover 200, and the limiting plate 420 is located away from the inner wall of the sealing cover 200.

[0059] That is, after the gas is filled into the pressure bearing cavity through the inflation assembly 500, the plurality of anti-skid assemblies 600 are in contact with the inner wall of the inner membrane layer 120 through a moving action, and the outer membrane layer 110 is tightly attached to the inner wall of the pipeline to be repaired, which is reflected in the rapidness of the action, the fixation of the point or line, and the prevention of the axial movement of the gas bag cloth 430. When the pressure bearing cavity is filled with gas, the gas bag cloth 430 is inflated, so that the two end regions of the outer membrane layer 110 are fixed to the inner wall of the pipeline to be repaired, and the key point is the uniformity of the inflation and attachment, which can prevent the hot water in the inner membrane layer 120 from flowing out.

[0060] As shown in Figure 8 and 9 The inflation assembly 500 comprises a main pipe 510, a plurality of branch pipes 520 are communicated with one end of the main pipe 510 away from the external inflation equipment, and the plurality of branch pipes 520 are used to communicate the main pipe 510 with the pressure bearing cavity.

[0061] It should be noted that after the one end of the main pipe 510 located outside the inner membrane layer 120 is connected with the air pump, the air pump fills the gas into the pressure bearing cavity through the main pipe 510, the plurality of branch pipes 520 radially distributed along the inner membrane layer 120 fill the gas into the pressure bearing cavity along different directions, and push the anti-skid assemblies 600 near them to generate a centrifugal sliding action, so as to quickly fix the inner wall of the inner membrane layer 120.

[0062] Based on the above description, the preferred effects of the anti-skid assembly 600 will be explained in combination with Figure 10 and Figure 13 The anti-skid assembly 600 comprises a limiting groove 610 opened in the limiting plate 420, the limiting groove 610 is communicated with the pressure bearing cavity, an anti-skid plate 620 is slidably connected in the limiting groove 610, the height of the anti-skid plate 620 is greater than the height of the limiting groove 610, the anti-skid plate 620 is fixedly connected with a pressure bearing plate 630 on the side close to the pressure bearing cavity, the pressure bearing plate 630 is located on the air passage of the branch pipe 520, and elastic members 640 are arranged on both sides of the anti-skid plate 620, and the elastic members 640 are used to drive the anti-skid plate 620 to reset after the anti-skid plate 620 slides out of the limiting groove 610.

[0063] Need to be disclosed is that the elastic member 640 includes guide rods 641 arranged in parallel with the sliding direction of the anti-skid plate 620, and the anti-skid plate 620 is slidably connected to the two guide rods 641 respectively, and the guide rods 641 are peripherally sleeved with springs 642 for resetting the anti-skid plate 620 after displacement.

[0064] The above structure, in the working process, when the branch pipe 520 inflates the pressure-bearing cavity, the pressure-bearing plate 630 near the gas outlet of the branch pipe 520 is driven by the gas pressure, driving the anti-skid plate 620 to slide along the radial centrifugal direction of the inner membrane layer 120, so that the anti-skid plate 620 is easy to slide out of the limiting groove 610, and the spring 642 deforms to store elastic potential energy during the process. The anti-skid plate 620 pushes the inner wall of the inner membrane layer 120 to fix the outer wall of the outer membrane layer 110 in the pipeline to be repaired, so as to prevent the air bag cloth 430 from being axially offset after the hot water is filled in the inner membrane layer 120. Because the anti-skid plate 620 is made of rigid material, its friction coefficient with the inner wall of the inner membrane layer 120 remains unchanged. As long as the gas pressure for pushing the pressure-bearing plate 630 is sufficient, the limiting plate 420 will not drive the air bag cloth 430 to move axially. The air bag cloth 430 is made of elastic material, and its shape will change after the hot water is filled in the inner membrane layer 120. Therefore, the friction coefficient between the air bag cloth 430 and the inner wall of the inner membrane layer 120 will change, which may increase or decrease, and cannot be controlled. Even if the gas pressure in the pressure-bearing cavity is increased, it cannot be guaranteed that the air bag cloth 430 and the inner wall of the inner membrane layer 120 have enough friction to prevent axial movement. Moreover, the pressure-limiting part close to the air bag cloth 430 is needed to prevent it from exploding.

[0065] Embodiment 2: According to the content provided in Embodiment 1, the purpose is to provide a process for a CIPP-based pipeline trenchless repair device, and the specific steps are as follows:

[0066] S1, pipeline cleaning: detecting and cleaning the pipeline to be repaired to ensure that the inner wall of the pipeline is clean and free of debris. At the same time, according to the size and repair requirements of the pipeline, a suitable repair assembly 100 containing resin is selected;

[0067] S2, installation of the repair assembly 100: using a hose inversion device to invert and send the repair assembly 100 containing resin into the pipeline to be repaired, and ensuring that the two ends of the repair assembly 100 are sealed well;

[0068] S3, hot water circulation and solidification: start the heating device and the hot water circulation system, heat the hot water to 90℃ to solidify the resin, and deliver the hot water into the repair assembly 100 through the hot water circulation system. The hot water circulates in the repair assembly 100, and the resin gradually solidifies to form a new inner lining. When the branch pipe 520 is inflated to fill the pressure chamber, the pressure plate 630 near the gas outlet of the branch pipe 520 is driven by the air pressure, and the anti-skid plate 620 slides along the radial centrifugal direction of the inner membrane layer 120, so that the anti-skid plate 620 is easy to slide out of the limiting groove 610, and the spring 642 is deformed to store elastic potential energy. The anti-skid plate 620 pushes the inner wall of the inner membrane layer 120 to fix the outer wall of the outer membrane layer 110 in the pipeline to be repaired, so that the air bag cloth 430 does not axially deviate when the hot water is filled in the inner membrane layer 120;

[0069] S4, cooling: after the resin solidification is completed, stop the heating device and the hot water circulation system, and let the reinforcing layer 130 cool naturally. After cooling, remove the sealing cover 200 at both ends of the inner membrane layer 120.

[0070] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application, and are not used to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A trenchless repair device for a pipeline based on CIPP, comprising a repair component (100), wherein both ends of the repair component (100) are provided with sealing covers (200), both ends of the repair component (100) are plugged with connecting components (300) in the two sealing covers (200), and both ends of the connecting components (300) are provided with a positioning sealing component (400) at one end located inside the repair component (100), and each positioning sealing component (400) is connected to an inflation component (500) on a side close to the outside of the repair component (100), characterized in that: The inflation component (500) includes a plurality of air outlets, and an anti-slip component (600) is provided at each air outlet of the inflation component (500) in the positioning sealing component (400) so as to fix the positioning sealing component (400) to the inner wall of the repair component (100); After the plurality of anti-slip components (600) are pushed by the increased air pressure introduced from the plurality of air outlets of the inflation component (500), each of the anti-slip components (600) performs centrifugal motion along the radial direction of the repair component (100), and the plurality of anti-slip components (600) contact the inner wall of the repair component (100) before the positioning sealing component (400) to fix the repair component (100) and prevent the positioning sealing component (400) from axial displacement.

2. The CIPP-based trenchless pipeline repair device according to claim 1, characterized in that: The repair component (100) includes an outer film layer (110), the outer film layer (110) is used to fit the inner wall of the pipe to be repaired, an inner film layer (120) is provided inside the outer film layer (110), and the inner film layer (120) is used to expand after being heated to push the outer film layer (110) to expand outward.

3. The CIPP-based trenchless pipeline repair device according to claim 2, characterized in that: A reinforcement layer (130) is provided between the outer film layer (110) and the inner film layer (120), and the reinforcement layer (130) is mixed with a thermosetting material.

4. The CIPP-based trenchless pipeline repair device according to claim 2, characterized in that: The connecting component (300) includes a water pipe (310), which is used to connect the inside and outside of the inner film layer (120). The material of the water pipe (310) is a rigid material. When hot water is passed into the inner film layer (120) through the water pipe (310), the shape of the water pipe (310) does not change.

5. The CIPP-based trenchless pipeline repair device according to claim 4, characterized in that: The positioning sealing assembly (400) comprises a positioning plate (410) and a limiting plate (420); an airbag cloth (430) is integrally arranged between the positioning plate (410) and the limiting plate (420); the positioning plate (410), the limiting plate (420), the inner wall of the airbag cloth (430) and the outer wall of the water pipe (310) form a pressure-bearing cavity.

6. The CIPP-based trenchless pipeline repair device according to claim 5, characterized in that: The positioning plate (410) and the limiting plate (420) are both integrally arranged with the outer wall of the water pipe (310) and are made of the same material. The positioning plate (410) is located close to the inner wall of the sealing cover (200), and the limiting plate (420) is located on a side away from the inner wall of the sealing cover (200).

7. The CIPP-based trenchless pipeline repair device according to claim 5, characterized in that: The inflation component (500) comprises a main pipe (510), one end of the main pipe (510) away from the external inflation device is connected to a plurality of branch pipes (520), and the plurality of branch pipes (520) are used to connect the main pipe (510) and the pressure chamber.

8. The CIPP-based trenchless pipeline repair device according to claim 5, characterized in that: The anti-slip assembly (600) includes a limiting groove (610) provided in the limiting plate (420), the limiting groove (610) being connected to the pressure-bearing chamber, an anti-slip plate (620) being slidably connected in the limiting groove (610), the height of the anti-slip plate (620) being greater than the height of the limiting groove (610), the anti-slip plate (620) being fixedly connected to a pressure-bearing plate (630) on a side close to the pressure-bearing chamber, the pressure-bearing plate (630) being located on the ventilation path of the bifurcated pipe (520), elastic members (640) being provided on both sides of the anti-slip plate (620), the elastic members (640) being used to drive the anti-slip plate (620) to reset after the anti-slip plate (620) slides out of the limiting groove (610).

9. The CIPP-based trenchless pipeline repair device according to claim 8, characterized in that: The elastic member (640) includes a guide rod (641) arranged in parallel with the sliding direction of the anti-slide plate (620), and the two sides of the anti-slide plate (620) are respectively slidably connected to the two guide rods (641). The outer periphery of the guide rod (641) is provided with a spring (642) for returning the displaced anti-slide plate (620) to its original position.

10. A process for the CIPP-based trenchless pipe repair device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Pipeline cleaning: Inspect and clean the pipeline to be repaired to ensure that the inner wall of the pipeline is clean and free of debris. At the same time, according to the size of the pipeline and the repair requirements, a suitable repair component (100) and resin are selected; S2. Hose installation: Use a hose flipping device to deliver the resin-impregnated repair component (100) into the pipe to be repaired, and ensure that both ends of the repair component (100) are well sealed; S3, hot water circulation and curing: Start the heating device and the hot water circulation system, and transport hot water into the repair component (100) through the hot water circulation system. The hot water circulates in the repair component (100), causing the resin to gradually cure and form a new lining layer; S4, cooling: After the resin is cured, the heating equipment and the hot water circulation system are stopped. After cooling, the sealing caps (200) at both ends of the repair component (100) are removed.

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