CN116241747A - Thermoplastic pipeline in-line forming non-excavation repair process and repair equipment - Google Patents

Abstract

The invention discloses a thermoplastic pipeline in-line forming non-excavation repair process and repair equipment, which comprises a support mechanism, wherein the support mechanism is used for supporting the inner wall of a pipeline to be repaired; the air compression mechanism comprises a first pipeline, a connecting pipeline, a second pipeline and an electric pneumatic cylinder; the electric pneumatic cylinder is arranged in the air compression cavity; the telescopic components are used for supporting the repairing material on the inner wall of the pipeline to be repaired, the heating component is positioned between the two groups of telescopic components and comprises a first outer pipe with a first sliding cavity, a first inner rod, a rolling shaft and a heating wire; the rotary driving mechanism is arranged on the fixing seat and used for driving the connecting pipeline to rotate, so that the first outer pipe, the first inner rod and the rolling shaft are driven to rotate. The invention can repair the local part of the thermoplastic pipe at fixed points without pulling out the damaged thermoplastic pipe for repair or integral replacement, and has the characteristics of convenient operation, high repair efficiency, good repair effect and low cost.

Description

Thermoplastic pipeline in-line forming non-excavation repair process and repair equipment

Technical Field

The invention belongs to the technical field of non-excavation pipeline repair, and particularly relates to a thermoplastic pipeline in-line forming non-excavation repair process and repair equipment.

Background

When municipal drainage pipelines, agricultural water, industrial water, tap water pipelines, gas pipelines and other underground pipelines and inspection wells are damaged, the ground of the damaged pipeline section is usually excavated to replace the damaged pipeline section. Obviously, the method for integrally repairing the damaged underground pipeline and the inspection well section after excavation is labor-consuming, time-consuming, low in efficiency and high in cost.

At present, the thermoplastic pipeline in-line forming non-excavation repairing process mainly utilizes the characteristics that a thermoplastic polymer material can be subjected to repeated heating forming, and is used repeatedly, a prefabricated lining pipe is heated and softened, and is pulled and placed into a pipeline to be repaired, so that the prefabricated lining pipe is arranged in an in-line mode, ports of an upstream prefabricated lining pipe and a downstream prefabricated lining pipe are heated and softened respectively, corresponding pipe diameter repairing air bags are plugged to seal the ports, heating and pressurizing are carried out through special equipment to tightly attach the ports with an original pipe, and then the prefabricated lining pipe is cooled to form the lining pipe, so that the repairing purpose is achieved. However, in the repair process, when a sharp object exists in a part of the pipeline to be repaired, the part of the thermoplastic pipe is often easily damaged in the expansion process of the thermoplastic pipe, and in the prior art, equipment for performing fixed-point repair on the part of the thermoplastic pipe is lacking, and the damaged thermoplastic pipe needs to be pulled out for repair or overall replacement, so that the repair efficiency is low and the cost is high.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a thermoplastic pipeline in-line forming non-excavation repair process and repair equipment.

The first aspect of the invention provides a thermoplastic pipeline in-line forming trenchless rehabilitation device, comprising:

the support mechanism comprises two groups of support components; each group of the supporting components comprises a fixed seat with a transverse through hole and a plurality of supporting pieces which are arranged at intervals along the circumferential direction of the fixed seat; the supporting piece is used for supporting the inner wall of the pipeline to be repaired;

the air compression mechanism comprises a first pipeline, a connecting pipeline, a second pipeline and an electric pneumatic cylinder; one end of the first pipeline is provided with a closed end, the other end of the first pipeline is provided with an open end, and the first pipeline is fixedly arranged in a transverse through hole of one fixing seat; one end of the second pipeline is provided with a closed end, the other end of the second pipeline is provided with an open end, and the second pipeline is fixedly arranged in a transverse through hole of the other fixed seat; the two ends of the connecting pipeline are both provided with open ends, one end of the connecting pipeline is rotatably connected with the open end of the first pipeline, and the other end of the connecting pipeline is rotatably connected with the open end of the second pipeline, so that an air compression cavity is formed among the first pipeline, the connecting pipeline and the second pipeline; the electric pneumatic cylinder is arranged in the air compression cavity;

the two groups of telescopic components are used for supporting the repair material on the inner wall of the pipeline to be repaired; wherein a group of telescopic components are fixedly arranged on the first pipeline; the other group of telescopic components are fixedly arranged on the second pipeline;

the heating assembly is positioned between the two groups of telescopic assemblies and comprises a first outer tube with a first sliding cavity, a first inner rod, a rolling shaft and a heating wire, wherein the first outer tube is fixedly arranged on a connecting pipeline, the rod body part of the first inner rod is slidably arranged in the first sliding cavity of the first outer tube, the first sliding cavity of the first outer tube is communicated with the air compression cavity, and the first inner rod is further provided with a U-shaped installation part extending out of the first sliding cavity; the roller is rotatably arranged on the U-shaped installation part, an installation cavity is formed in the roller, and the heating wire is fixedly arranged in the installation cavity;

the rotary driving mechanism is arranged on the fixing seat and used for driving the connecting pipeline to rotate, so that the first outer pipe, the first inner rod and the rolling shaft are driven to rotate.

In a first aspect of the present invention, as a preferred embodiment, the telescopic assembly includes a collar having an air input passage, a second outer tube having a second sliding chamber, the second outer tube being fixedly mounted on the collar, and a second inner rod, a shaft portion of the second inner rod being slidably mounted in the second sliding chamber of the second outer tube, the second sliding chamber of the second outer tube being in communication with the air compression chamber through the air input passage of the collar, the second inner rod further having an arcuate abutment projecting out of the second sliding chamber for supporting a repair material on an inner wall of a pipe to be repaired; the lantern ring of one group of telescopic components is fixedly arranged on the first pipeline and is connected with one side surface of the connecting sleeve through a bearing; the lantern ring of another group of telescopic components is fixedly arranged on the second pipeline and is connected with the other side face of the connecting sleeve through a bearing.

In a first aspect of the present invention, as a preferred embodiment, through holes are formed at equal angles on two sides of the outer surface of the connecting pipe, and the air input channel of the collar is communicated with the air compression chamber through the through holes.

In a first aspect of the present invention, as a preferred embodiment, the support member includes a spring telescoping rod and an arc roller rotatably mounted to an end of the spring telescoping rod remote from the fixing base.

In the first aspect of the present invention, as a preferred embodiment, the length of the spring expansion rod is greater than the lengths of the first inner rod and the second outer tube.

In a first aspect of the present invention, as a preferred embodiment, the rotation driving mechanism includes a motor, a first gear, a second gear, a sleeve rod with an axial through hole, and a connecting rod, wherein the motor is fixedly installed on the fixing seat, and the first gear is fixedly installed on an output shaft of the motor; the loop bar is rotatably arranged on the closed end of the first pipeline, the first end of the loop bar penetrates through the open end of the first pipeline to extend into the inner cavity of the connecting pipeline, and the second end of the loop bar penetrates through the closed end of the first pipeline to extend outwards; the second end of the loop bar is fixedly provided with the second gear, and the second gear is meshed with the first gear; one end of the connecting rod is fixedly connected with the first end of the loop bar, and the other end of the connecting rod is fixedly connected with the inner wall of the connecting pipeline.

In a first aspect of the present invention, as a preferred embodiment, the connecting rod includes a radial connecting portion and an axial connecting portion connected to each other, one end of the radial connecting portion is fixedly connected to the first end of the loop bar, the other end of the radial connecting portion is fixedly connected to one end of the axial connecting portion, and the other end of the axial connecting portion is fixedly connected to the inner wall of the connecting pipe; the number of the connecting rods is eight, four connecting rods are arranged around the outer side Zhou Dengjiao degrees of the loop bar to form a first connecting rod group, the other four connecting rods are arranged around the outer side Zhou Dengjiao degrees of the loop bar to form a second connecting rod group, the first connecting rod group is fixedly connected with the inner wall of the connecting pipeline on one side of the first pipeline, and the second connecting rod group is fixedly connected with the inner wall of the connecting pipeline on one side of the second pipeline.

In a first aspect of the present invention, as a preferred embodiment, the bending rod further includes a bending rod, where the bending rod includes a first transverse connection portion, a first longitudinal connection portion, a second transverse connection portion, and a second longitudinal connection portion that are sequentially connected, one end of the first transverse connection portion is fixedly connected to the fixing base, the other end of the first transverse connection portion is fixedly connected to one end of the first longitudinal connection portion, the other end of the second longitudinal connection portion is connected to one end of the second transverse connection portion, the other end of the second transverse connection portion penetrates through an axial through hole of the loop rod and is fixedly connected to one end of the second longitudinal connection portion, and the other end of the second longitudinal connection portion is fixedly connected to an inner wall of the second pipe.

In the first aspect of the present invention, as a preferred embodiment, the cooling mechanism further includes a fan fixedly installed at the front end of the outer surface of the connecting pipe, a top air outlet of the fan is fixedly connected with an air outlet pipe, a middle upper portion of the outer surface of the air outlet pipe is fixedly connected with the front end of the outer surface of the second outer pipe, an air outlet of the air outlet pipe is located at a position adjacent to the roller, and a bottom air inlet of the fan is fixedly connected with an air inlet pipe.

The second aspect of the invention provides a thermoplastic pipeline in-line forming non-excavation repairing process, which comprises the steps of heating and softening a prefabricated lining pipe, pulling and placing the prefabricated lining pipe into a pipeline to be repaired, arranging the prefabricated lining pipe in a straight shape, then heating and softening ports of an upstream prefabricated lining pipe and a downstream prefabricated lining pipe respectively, plugging the ports by plugging corresponding pipe diameter repairing air bags, heating and pressurizing by heating and pressurizing equipment, enabling the prefabricated lining pipe to be closely attached to the pipeline to be repaired, cooling and shaping the prefabricated lining pipe to form the lining pipe, detecting the interior of the pipeline to be repaired after shaping by adopting a CCTV system CCTV device, and repairing again by adopting the thermoplastic pipeline in-line forming non-excavation repairing device according to the first aspect of the invention by combining the CCTV system CCTV device when the inner wall of the lining pipe is damaged, and specifically comprising the following steps:

and (3) supporting: firstly, placing repairing materials on two groups of telescopic components, and adjusting the telescopic length of each spring telescopic rod according to the inner diameter of a pipeline to be repaired, so that each arc-shaped roller is respectively supported on the inner wall of the pipeline to be repaired, and driving the repairing equipment to move to a preset position;

and (3) repairing: when the repairing equipment moves to a preset position, an operator operates an electric pneumatic cylinder, a piston block of the electric pneumatic cylinder moves to the side close to the first pipeline, so that the air pressure in the air compression cavity is increased, and as the first sliding cavity of the first outer pipe is communicated with the air compression cavity, the first inner rod moves upwards, and the rolling shaft is in extrusion contact with the repairing material; meanwhile, as the air input channel of the lantern ring is communicated with the air compression cavity through the through hole, the second inner rod moves upwards, so that the arc-shaped abutting part supports the repairing material on the inner wall of the pipeline to be repaired; at the moment, an operator runs the motor, the first gear drives the second gear and the loop bar to rotate, meanwhile, the connecting pipe drives the first outer pipe, the first inner bar and the rolling shaft to rotate through the connecting action of the connecting bar, and meanwhile, the rolling shaft is in extrusion contact with the repairing material and is heated, so that the repairing material is attached to the inner wall of the pipe to be repaired;

and (3) a cooling step: when the connecting pipeline drives the first outer pipe, the first inner rod and the rolling shaft to rotate, the fan is driven to rotate at the same time, and the fan is operated at the moment to blow out cooling air from the air outlet pipe, so that the heated repair material is cooled.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, through the cooperation among the structures such as the supporting mechanism, the air compression mechanism, the telescopic component, the heating component, the rotary driving mechanism and the like, after the repairing equipment moves to a preset position, an operator operates the electric pneumatic cylinder, a piston block of the electric pneumatic cylinder moves to one side close to the first pipeline, so that the air pressure in the air compression cavity is increased, and as the first sliding cavity of the first outer pipe is communicated with the air compression cavity, the first inner rod moves upwards, and the rolling shaft is in extrusion contact with the repairing material; simultaneously, the telescopic assembly is driven, so that the arc-shaped abutting part supports the repairing material on the inner wall of the pipeline to be repaired; at this time, through rotary driving mechanism, will make connecting tube drive first outer tube, first interior pole and roller bearing and take place to rotate, the roller bearing will take place extrusion contact and heat with repair material simultaneously to laminate repair material on the inner wall of waiting repair pipeline. Therefore, the device can repair the local part of the thermoplastic pipe at fixed points without pulling out the damaged thermoplastic pipe for repair or integral replacement, and has the characteristics of convenient operation, high repair efficiency, good repair effect and low cost.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is an exploded view of the bending bar of the present invention;

FIG. 6 is an exploded view of the present invention at the arcuate rollers;

FIG. 7 is an exploded view of the bending rod of the present invention;

fig. 8 is an exploded view of the telescoping assembly of the present invention.

In the figure:

11. a support assembly; 111. a fixing seat; 112. a support; 1121. a spring telescoping rod; 1122. arc-shaped rollers;

21. a first pipe; 22. a connecting pipe; 221. a through hole; 23. a second pipe; 24. an electric pneumatic cylinder; 25. an air compression chamber;

31. a collar; 311. an air input channel; 32. a second outer tube; 321. a second sliding chamber; 33. a second inner rod; 331. an arc-shaped abutting portion;

41. a first outer tube; 411. a first sliding chamber; 42. a first inner rod; 421. a U-shaped mounting portion; 43. a roller; 44. a heating wire;

51. a motor; 52. a first gear; 53. a second gear; 54. a loop bar; 55. a connecting rod; 551. a radial connection; 552. an axial connection portion;

60. bending the rod; 61. a first transverse connection; 62. a first longitudinal connection; 63. a second transverse connection; 64. a second longitudinal connection;

71. a blower; 72. an air outlet pipe; 73. an air inlet pipe.

Detailed Description

The invention will be further described with reference to the drawings and the detailed description, wherein it should be noted that, on the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form new embodiments. Materials and equipment used in this example are commercially available, except as specifically noted. Examples of embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are therefore not to be construed as limiting the present application. In the description of the present application, the meaning of "a plurality" is two or more, unless specifically stated otherwise.

In the description of the present application, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, or connected via an intermediary, or may be a connection between two elements or an interaction relationship between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

Referring to fig. 1-8, the embodiment provides a thermoplastic pipeline in-line forming non-excavation repair device, which comprises a supporting mechanism, an air compression mechanism, two groups of telescopic assemblies, a heating assembly and a rotary driving mechanism;

specifically, the support mechanism includes two sets of support members 11; each group of the supporting components 11 comprises a fixed seat 111 with a transverse through hole and a plurality of supporting pieces 112 which are arranged at intervals along the circumferential direction of the fixed seat 111; the supporting piece 112 is used for supporting on the inner wall of the pipeline to be repaired;

specifically, the air compression mechanism includes a first pipe 21, a connecting pipe 22, a second pipe 23, and an electro-pneumatic cylinder 24; one end of the first pipe 21 is provided as a closed end, the other end thereof is provided as an open end, and the first pipe 21 is fixedly installed in a transverse through hole of one fixing seat 111; one end of the second pipe 23 is provided as a closed end, the other end thereof is provided as an open end, and the second pipe 23 is fixedly installed in the transverse through hole of the other fixing seat 111; both ends of the connecting pipe 22 are provided with open ends, one end of the connecting pipe 22 is rotatably connected with the open end of the first pipe 21, and the other end of the connecting pipe 22 is rotatably connected with the open end of the second pipe 23, so that an air compression cavity 25 is formed among the first pipe 21, the connecting pipe 22 and the second pipe 23; an electric pneumatic cylinder 24 is provided in the air compression chamber 25;

specifically, the telescopic component is used for supporting the repair material on the inner wall of the pipeline to be repaired; one group of telescopic components is fixedly arranged on the first pipeline 21; the other group of telescopic components are fixedly arranged on the second pipeline 23;

specifically, the heating assembly is located between the two groups of telescopic assemblies, the heating assembly comprises a first outer tube 41 with a first sliding cavity 411, a first inner rod 42, a roller 43 and a heating wire 44, the first outer tube 41 is fixedly installed on the connecting pipeline 22, the rod body part of the first inner rod 42 is slidably installed in the first sliding cavity 411 of the first outer tube 41, the first sliding cavity 411 of the first outer tube 41 is communicated with the air compression cavity 25, and the first inner rod 42 is also provided with a U-shaped installation part 421 extending out of the first sliding cavity 411; the roller 43 is rotatably installed on the U-shaped installation part 421, an installation cavity is formed in the roller 43, and the heating wire 44 is fixedly installed in the installation cavity;

specifically, the rotary driving mechanism is mounted on the fixing base 111, and the rotary driving mechanism is used for driving the connecting pipe 22 to rotate, so as to drive the first outer pipe 41, the first inner rod 42 and the roller 43 to rotate.

On the basis of the above structure, when the repairing apparatus is moved to the preset position, the operator operates the electric pneumatic cylinder 24, and the piston block of the electric pneumatic cylinder 24 is moved to a side close to the first pipe 21, so that the gas pressure inside the air compression chamber 25 is increased, and the first sliding chamber 411 of the first outer pipe 41 is communicated with the air compression chamber 25, so that the first inner rod 42 is moved upward, so that the roller 43 is in pressing contact with the repairing material; meanwhile, the telescopic assembly is driven, so that the arc-shaped abutting part 331 supports the repairing material on the inner wall of the pipeline to be repaired; at this time, the connecting pipe 22 will drive the first outer pipe 41, the first inner rod 42 and the roller 43 to rotate by the rotation driving mechanism, and meanwhile, the roller 43 will be in extrusion contact with the repairing material and heat, so that the repairing material is attached to the inner wall of the pipe to be repaired. Therefore, the device can repair the local part of the thermoplastic pipe at fixed points without pulling out the damaged thermoplastic pipe for repair or integral replacement, and has the characteristics of convenient operation, high repair efficiency, good repair effect and low cost.

In the preferred embodiment of the present invention, the telescopic assembly comprises a collar 31 having an air input channel 311, a second outer tube 32 having a second sliding cavity 321, and a second inner rod 33, the second outer tube 32 is fixedly installed on the collar 31, the shaft portion of the second inner rod 33 is slidably installed in the second sliding cavity 321 of the second outer tube 32, the second sliding cavity 321 of the second outer tube 32 is communicated with the air compression cavity 25 through the air input channel 311 of the collar 31, the second inner rod 33 further has an arc-shaped abutting portion 331 extending out of the second sliding cavity 321, the arc-shaped abutting portion 331 is used for supporting the repairing material on the inner wall of the pipe to be repaired; the lantern ring 31 of one group of telescopic components is fixedly arranged on the first pipeline 21 and is connected with one side surface of the connecting sleeve through a bearing; the collar 31 of the other set of telescopic members is fixedly mounted on the second conduit 23 and is connected to the other side of the connection sleeve by means of a bearing. Thus, the invention can drive the first inner rod 42 of the heating component and the two groups of telescopic components simultaneously through one electric pneumatic cylinder 24 to realize lifting movement, and has the advantages of convenient operation, good synchronism and low cost.

What should be explained here is: the repairing material may be in a flat strip shape or a ring-shaped strip shape, and is jacked up and supported by the two second inner rods 33, and the rolling of the roller 43 will have an extrusion effect on the repairing material. The embodiment can adopt CCTV system CCTV equipment to detect the inside of the to-be-repaired pipeline after finishing shaping, can display whether the inner wall of the lining pipe is smooth or damaged, and can smoothly move the repair equipment to the damaged position by combining the CCTV system CCTV equipment when the damage exists.

In the preferred embodiment of the present invention, the connecting pipe 22 is provided with through holes 221 at equal angles in the form of rings on both sides of the outer surface thereof, and the air input passage 311 of the collar 31 communicates with the air compression chamber 25 through the through holes.

In a preferred embodiment of the present invention, the support 112 includes a spring telescoping rod 1121 and an arcuate roller 1122 rotatably mounted to an end of the spring telescoping rod 1121 remote from the fixed base 111. The invention uses the cooperation between the spring telescoping rod 1121 and the arc roller 1122, when the device needs to repair thermoplastic pipes with different diameters, the device is suitable for moving in the thermoplastic pipes with different diameters by shortening the spring telescoping rod 1121.

In the preferred embodiment of the present invention, the length of the spring telescoping rod 1121 is greater than the length of the first inner rod 42 and the second outer tube 32. In this way, the spring telescoping rod 1121 is facilitated to be able to be stably supported on the inner wall of the pipe to be repaired.

In the preferred embodiment of the present invention, the rotary driving mechanism comprises a motor 51, a first gear 52, a second gear 53, a sleeve rod 54 with an axial through hole, and a connecting rod 55, wherein the motor 51 is fixedly installed on a fixed seat 111, and the first gear 52 is fixedly installed on an output shaft of the motor 51; the sleeve rod 54 is rotatably mounted on the closed end of the first pipeline 21, the first end of the sleeve rod extends into the inner cavity of the connecting pipeline 22 through the open end of the first pipeline 21, and the second end of the sleeve rod extends outwards through the closed end of the first pipeline 21; a second gear 53 is fixedly arranged on the second end of the loop bar 54, and the second gear 53 is meshed with the first gear 52; one end of the connecting rod is fixedly connected to a first end of the loop bar 54 and the other end is fixedly connected to the inner wall of the connecting pipe 22. Thus, the sleeve rod 54 and the connecting rod are hidden inside the first pipeline 21 and the connecting pipeline 22, so that the whole structure is more compact, the occupied space is smaller, and meanwhile, the sleeve rod and the connecting rod are not easily influenced by external environment in the rotating process.

In the preferred embodiment of the present invention, the connecting rod 55 includes a radial connecting portion 551 and an axial connecting portion 552 connected to each other, one end of the radial connecting portion 551 is fixedly connected to the first end of the loop bar 54, the other end thereof is fixedly connected to one end of the axial connecting portion 552, and the other end of the axial connecting portion 552 is fixedly connected to the inner wall of the connecting pipe 22; the number of the connecting rods 55 is eight, wherein four connecting rods 55 are arranged around the outer side Zhou Dengjiao degrees of the loop bar 54 to form a first connecting rod group, the other four connecting rods are arranged around the outer side Zhou Dengjiao degrees of the loop bar 54 to form a second connecting rod group, the first connecting rod group is fixedly connected with the inner wall of the connecting pipeline 22 positioned on one side of the first pipeline 21, and the second connecting rod group is fixedly connected with the inner wall of the connecting pipeline 22 positioned on one side of the second pipeline 23. Therefore, the method has the advantage of better connection stability.

In the preferred embodiment of the present invention, the bending rod 60 further comprises a bending rod 60, wherein the bending rod 60 comprises a first transverse connection portion 61, a first longitudinal connection portion 62, a second transverse connection portion 63 and a second longitudinal connection portion 64 which are sequentially connected, one end of the first transverse connection portion 61 is fixedly connected with the fixing seat 111, the other end of the first transverse connection portion is fixedly connected with one end of the first longitudinal connection portion 62, the other end of the second longitudinal connection portion 64 is connected with one end of the second transverse connection portion 63, the other end of the second transverse connection portion 63 penetrates through an axial through hole of the sleeve rod 54 to be fixedly connected with one end of the second longitudinal connection portion 64, and the other end of the second longitudinal connection portion 64 is fixedly connected with the inner wall of the second pipeline 23. In this way, the first pipe 21 and the second pipe 23 are connected by the bending rod 60, so that the device is kept as a whole, and further the shaking of the device during moving is prevented.

In the preferred embodiment of the present invention, the cooling mechanism further comprises a fan 71 fixedly installed at the front end of the outer surface of the connecting pipe 22, the top air outlet of the fan 71 is fixedly connected with an air outlet pipe 72, the middle upper part of the outer surface of the air outlet pipe 72 is fixedly connected with the front end of the outer surface of the second outer pipe 32, the air outlet of the air outlet pipe 72 is located at a position adjacent to the roller 43, and the bottom air inlet of the fan 71 is fixedly connected with an air inlet pipe 73. So, through the cooperation between structures such as tuber pipe 72 and fan 71 for the device has the effect of carrying out quick cooling to the repair material that the laminating is good, drives first interior pole 42, first outer tube 41 and roller bearing 43 again through connecting tube 22 and rotates, will drive simultaneously fan 71 and take place to rotate this moment, thereby operation fan 71 will make tuber pipe 72 department blow out the cooling air and realize cooling to the repair material after roller bearing 43 repair pipeline this moment, thereby make repair material at the inside cooling of thermoplastic pipeline as early as possible, repair efficiency has been improved greatly.

Example two

The second embodiment is an improvement based on the first embodiment.

The second embodiment provides a thermoplastic pipeline in-line forming non-excavation repairing process, which comprises the steps of heating and softening a prefabricated lining pipe, pulling and placing the prefabricated lining pipe into a pipeline to be repaired, enabling the prefabricated lining pipe to be in an in-line arrangement, then respectively heating and softening ports of the upstream prefabricated lining pipe and the downstream prefabricated lining pipe, plugging the ports by plugging corresponding pipe diameter repairing air bags, heating and pressurizing through heating and pressurizing equipment, enabling the prefabricated lining pipe to be closely attached to the pipeline to be repaired, cooling and shaping the prefabricated lining pipe to form the lining pipe, detecting the inside of the shaped pipeline to be repaired by adopting CCTV (closed circuit television) equipment, and repairing again by adopting the thermoplastic pipeline in-line forming non-excavation repairing equipment of the first embodiment by combining the CCTV (closed circuit television) equipment when the inner wall of the lining pipe is displayed to be damaged, wherein the concrete steps are as follows:

and (3) supporting: firstly, placing repairing materials on two groups of telescopic components, and adjusting the telescopic length of each spring telescopic rod according to the inner diameter of a pipeline to be repaired, so that each arc-shaped roller is respectively supported on the inner wall of the pipeline to be repaired, and driving the repairing equipment to move to a preset position;

and (3) repairing: when the repairing equipment moves to a preset position, an operator operates an electric pneumatic cylinder, a piston block of the electric pneumatic cylinder moves to one side close to the first pipeline, so that the air pressure in the air compression cavity is increased, and as the first sliding cavity of the first outer pipe is communicated with the air compression cavity, the first inner rod moves upwards, so that the rolling shaft is in extrusion contact with the repairing material; meanwhile, as the air input channel of the lantern ring is communicated with the air compression cavity through the through hole, the second inner rod moves upwards, so that the arc-shaped abutting part supports the repairing material on the inner wall of the pipeline to be repaired; at the moment, an operator runs the motor, the first gear drives the second gear and the loop bar to rotate, meanwhile, the connecting pipe drives the first outer pipe, the first inner bar and the rolling shaft to rotate through the connecting action of the connecting bar, and meanwhile, the rolling shaft is in extrusion contact with the repairing material and is heated, so that the repairing material is attached to the inner wall of the pipe to be repaired;

and (3) a cooling step: when the connecting pipeline drives the first outer pipe, the first inner rod and the rolling shaft to rotate, the fan is driven to rotate at the same time, and the fan is operated at the moment to blow out cooling air from the air outlet pipe, so that the heated repair material is cooled.

In summary, the device can repair the local part of the thermoplastic pipe at fixed points without pulling out the damaged thermoplastic pipe for repair or integral replacement, and has the characteristics of convenient operation, high repair efficiency, good repair effect and low cost. According to the invention, through the cooperation between the spring telescopic rod and the arc roller, when the device needs to repair thermoplastic pipelines with different diameters, the device is suitable for moving in the thermoplastic pipelines with different diameters through the shortening of the spring telescopic rod, and meanwhile, the first pipeline and the second pipeline are connected through the action of the bending rod, so that the device is kept as a whole, and further, the shaking condition of the device during moving is prevented.

Although only certain features and embodiments of the present application have been illustrated and described, many modifications and changes may be made by those skilled in the art without departing substantially from the scope and spirit of the claims, for example: variations in the size, dimensions, structure, shape and proportions of the various elements, mounting arrangements, use of materials, colors, orientations, etc.

The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.

Claims (10)

1. A thermoplastic pipeline in-line forming trenchless rehabilitation device, comprising:

the support mechanism comprises two groups of support components; each group of the supporting components comprises a fixed seat with a transverse through hole and a plurality of supporting pieces which are arranged at intervals along the circumferential direction of the fixed seat; the supporting piece is used for supporting the inner wall of the pipeline to be repaired;

the air compression mechanism comprises a first pipeline, a connecting pipeline, a second pipeline and an electric pneumatic cylinder; one end of the first pipeline is provided with a closed end, the other end of the first pipeline is provided with an open end, and the first pipeline is fixedly arranged in a transverse through hole of one fixing seat; one end of the second pipeline is provided with a closed end, the other end of the second pipeline is provided with an open end, and the second pipeline is fixedly arranged in a transverse through hole of the other fixed seat; the two ends of the connecting pipeline are both provided with open ends, one end of the connecting pipeline is rotatably connected with the open end of the first pipeline, and the other end of the connecting pipeline is rotatably connected with the open end of the second pipeline, so that an air compression cavity is formed among the first pipeline, the connecting pipeline and the second pipeline; the electric pneumatic cylinder is arranged in the air compression cavity;

the two groups of telescopic components are used for supporting the repair material on the inner wall of the pipeline to be repaired; wherein a group of telescopic components are fixedly arranged on the first pipeline; the other group of telescopic components are fixedly arranged on the second pipeline;

the heating assembly is positioned between the two groups of telescopic assemblies and comprises a first outer tube with a first sliding cavity, a first inner rod, a rolling shaft and a heating wire, wherein the first outer tube is fixedly arranged on a connecting pipeline, the rod body part of the first inner rod is slidably arranged in the first sliding cavity of the first outer tube, the first sliding cavity of the first outer tube is communicated with the air compression cavity, and the first inner rod is further provided with a U-shaped installation part extending out of the first sliding cavity; the roller is rotatably arranged on the U-shaped installation part, an installation cavity is formed in the roller, and the heating wire is fixedly arranged in the installation cavity;

the rotary driving mechanism is arranged on the fixing seat and used for driving the connecting pipeline to rotate, so that the first outer pipe, the first inner rod and the rolling shaft are driven to rotate.

2. The thermoplastic pipeline in-line molded trenchless rehabilitation device of claim 1 wherein the telescoping assembly comprises a collar having an air input passage, a second outer tube having a second sliding cavity, the second outer tube fixedly mounted on the collar, a shaft portion of the second inner tube slidably mounted in the second sliding cavity of the second outer tube, the second sliding cavity of the second outer tube in communication with the air compression cavity through the air input passage of the collar, and a second inner rod further having an arcuate abutment extending out of the second sliding cavity for supporting a rehabilitation material on an inner wall of the pipeline to be rehabilitated; the lantern ring of one group of telescopic components is fixedly arranged on the first pipeline and is connected with one side surface of the connecting sleeve through a bearing; the lantern ring of another group of telescopic components is fixedly arranged on the second pipeline and is connected with the other side face of the connecting sleeve through a bearing.

3. The thermoplastic pipeline in-line forming trenchless rehabilitation apparatus of claim 2 wherein the outer surface of the connecting pipeline is provided with through holes at equal angles on both sides of the annular shape, and the air inlet passage of the collar is in communication with the air compression chamber through the through holes.

4. The thermoplastic pipeline in-line molding trenchless rehabilitation apparatus of claim 2 wherein the support comprises a spring telescoping rod rotatably mounted to an end of the spring telescoping rod remote from the mounting base.

5. The thermoplastic pipeline in-line forming trenchless rehabilitation apparatus of claim 4 wherein the length of the spring telescoping rod is greater than the length of the first inner rod and the second outer tube.

6. The thermoplastic pipeline in-line forming trenchless rehabilitation device according to claim 1, wherein the rotary driving mechanism comprises a motor, a first gear, a second gear, a loop bar with an axial through hole and a connecting rod, wherein the motor is fixedly arranged on the fixed seat, and the first gear is fixedly arranged on an output shaft of the motor; the loop bar is rotatably arranged on the closed end of the first pipeline, the first end of the loop bar penetrates through the open end of the first pipeline to extend into the inner cavity of the connecting pipeline, and the second end of the loop bar penetrates through the closed end of the first pipeline to extend outwards; the second end of the loop bar is fixedly provided with the second gear, and the second gear is meshed with the first gear; one end of the connecting rod is fixedly connected with the first end of the loop bar, and the other end of the connecting rod is fixedly connected with the inner wall of the connecting pipeline.

7. The thermoplastic pipeline in-line forming trenchless rehabilitation device according to claim 6, wherein the connecting rod comprises a radial connecting part and an axial connecting part which are connected with each other, one end of the radial connecting part is fixedly connected with the first end of the loop bar, the other end of the radial connecting part is fixedly connected with one end of the axial connecting part, and the other end of the axial connecting part is fixedly connected with the inner wall of the connecting pipeline; the number of the connecting rods is eight, four connecting rods are arranged around the outer side Zhou Dengjiao degrees of the loop bar to form a first connecting rod group, the other four connecting rods are arranged around the outer side Zhou Dengjiao degrees of the loop bar to form a second connecting rod group, the first connecting rod group is fixedly connected with the inner wall of the connecting pipeline on one side of the first pipeline, and the second connecting rod group is fixedly connected with the inner wall of the connecting pipeline on one side of the second pipeline.

8. The thermoplastic pipeline in-line forming trenchless rehabilitation device according to claim 6, further comprising a bending rod, wherein the bending rod comprises a first transverse connecting part, a first longitudinal connecting part, a second transverse connecting part and a second longitudinal connecting part which are sequentially connected, one end of the first transverse connecting part is fixedly connected with the fixing seat, the other end of the first transverse connecting part is fixedly connected with one end of the first longitudinal connecting part, the other end of the second longitudinal connecting part is connected with one end of the second transverse connecting part, the other end of the second transverse connecting part penetrates through an axial through hole of the loop bar and is fixedly connected with one end of the second longitudinal connecting part, and the other end of the second longitudinal connecting part is fixedly connected with the inner wall of the second pipeline.

9. The thermoplastic pipeline in-line forming trenchless rehabilitation device according to claim 1, further comprising a cooling mechanism, wherein the cooling mechanism comprises a fan fixedly installed at the front end of the outer surface of the connecting pipeline, a top air outlet of the fan is fixedly connected with an air outlet pipe, the middle upper part of the outer surface of the air outlet pipe is fixedly connected with the front end of the outer surface of the second outer pipe, an air outlet of the air outlet pipe is positioned adjacent to the roller, and a bottom air inlet of the fan is fixedly connected with an air inlet pipe.

10. The process is characterized by comprising the steps of heating and softening a prefabricated lining pipe, pulling and placing the prefabricated lining pipe into a pipeline to be repaired, arranging the prefabricated lining pipe in a straight line shape, then respectively heating and softening ports of an upstream prefabricated lining pipe and a downstream prefabricated lining pipe, plugging the ports by plugging corresponding pipe diameter repairing air bags, heating and pressurizing by heating and pressurizing equipment, enabling the prefabricated lining pipe to be closely attached to the pipeline to be repaired, cooling and shaping the prefabricated lining pipe to form the lining pipe, detecting the inside of the shaped pipeline to be repaired by adopting CCTV equipment, and when the inner wall of the lining pipe is displayed to be damaged, repairing again by adopting the thermoplastic pipeline in-line shaping non-excavation repairing equipment according to any one of claims 1-9 by combining CCTV equipment, and specifically comprising the following steps:

and (3) supporting: firstly, placing repairing materials on two groups of telescopic components, and adjusting the telescopic length of each spring telescopic rod according to the inner diameter of a pipeline to be repaired, so that each arc-shaped roller is respectively supported on the inner wall of the pipeline to be repaired, and driving the repairing equipment to move to a preset position;

and (3) repairing: when the repairing equipment moves to a preset position, an operator operates an electric pneumatic cylinder, a piston block of the electric pneumatic cylinder moves to the side close to the first pipeline, so that the air pressure in the air compression cavity is increased, and as the first sliding cavity of the first outer pipe is communicated with the air compression cavity, the first inner rod moves upwards, and the rolling shaft is in extrusion contact with the repairing material; meanwhile, as the air input channel of the lantern ring is communicated with the air compression cavity through the through hole, the second inner rod moves upwards, so that the arc-shaped abutting part supports the repairing material on the inner wall of the pipeline to be repaired; at the moment, an operator runs the motor, the first gear drives the second gear and the loop bar to rotate, meanwhile, the connecting pipe drives the first outer pipe, the first inner bar and the rolling shaft to rotate through the connecting action of the connecting bar, and meanwhile, the rolling shaft is in extrusion contact with the repairing material and is heated, so that the repairing material is attached to the inner wall of the pipe to be repaired;

and (3) a cooling step: when the connecting pipeline drives the first outer pipe, the first inner rod and the rolling shaft to rotate, the fan is driven to rotate at the same time, and the fan is operated at the moment to blow out cooling air from the air outlet pipe, so that the heated repair material is cooled.

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