CN214699769U

CN214699769U - Non-excavation formula pipeline prosthetic devices

Info

Publication number: CN214699769U
Application number: CN202120411781.9U
Authority: CN
Inventors: 李伦; 朱明闯
Original assignee: Sichuan Xinghuiteng Group Co Ltd
Current assignee: Sichuan Xinghuiteng Group Co Ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-11-12
Anticipated expiration: 2031-02-24

Abstract

The utility model relates to the technical field of pipeline repair, and provides a non-excavation pipeline repair device, which comprises a first fixed seat, a second fixed seat and a support mechanism, wherein the support mechanism comprises a plurality of support units; the supporting unit comprises a first support, a second support, a first supporting arm, a second supporting arm, a supporting plate and a driving part, wherein one end of the first supporting arm is hinged with the first support, one end of the second supporting arm is hinged with the second support, and the middle part of the first supporting arm is hinged with the middle part of the second supporting arm; one end of the first support arm, which is far away from the first support, and one end of the second support arm, which is far away from the second support, are both in slidable hinged connection with the inner side of the support plate; the driving member drives the first and second holders to move toward and away from each other. The utility model discloses a non-excavation formula pipeline prosthetic devices that the setting has supporting mechanism can realize strutting and can add the thermal cure after repairing the hose, has simplified the prosthetic operation of pipeline greatly.

Description

Non-excavation formula pipeline prosthetic devices

Technical Field

The utility model relates to a pipeline repair technical field particularly, relates to a non-excavation formula pipeline prosthetic devices.

Background

Municipal pipelines are one of important projects of urban infrastructure, wherein drainage pipelines are mainly used for collecting and discharging domestic sewage, industrial wastewater and rainwater in time so as to ensure the environmental sanitation of cities and the life and property safety of people. The drainage pipeline is generally made of concrete, metal or plastic, and after the pipeline is used for a certain time, the surface of the inner wall of the pipeline is likely to be structurally stripped, so that the pipeline wall becomes thin and even partially collapses, the phenomena of pipeline blockage and water leakage are caused, the urban environmental sanitation is seriously influenced, and the life and property safety is threatened.

Therefore, the CIPP in-situ curing method is commonly used in the prior art to repair the damaged pipeline on the basis of no excavation of the land. The repairing principle is as follows: firstly, a hose soaked with resin is tiled into a pipeline to be repaired through corresponding equipment, then one end of the hose is bundled, and ventilation is conducted from the other end of the hose to enable the outer wall of the hose to be attached to the inner wall with the repair pipeline after the hose is expanded, then an ultraviolet lamp chain is placed into the expanded hose, the hose is solidified through irradiation of an ultraviolet lamp, and finally a new continuous pipeline with full structural strength is formed inside the pipeline to be repaired. However, in practical applications, it is found that the above repairing technology requires that the hose is aerated to expand and then heated to cure, and the whole repairing process is complicated and the construction efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a non-excavation formula pipeline prosthetic devices, its operation when can simplifying the restoration pipeline, the operation that realizes strutting and add the curing hose goes on simultaneously, improves repair efficiency.

The embodiment of the utility model discloses a realize through following technical scheme:

the utility model provides a non-excavation type pipeline repairing device, which comprises a first fixed seat, a second fixed seat and a supporting mechanism arranged between the first fixed seat and the second fixed seat, wherein the supporting mechanism comprises a plurality of supporting units which are distributed annularly;

the supporting unit comprises a first support, a second support, a first supporting arm, a second supporting arm, a supporting plate and a driving part, wherein one end of the first supporting arm is hinged with the first support, one end of the second supporting arm is hinged with the second support, and the middle part of the first supporting arm is hinged with the middle part of the second supporting arm; one end of the first support arm, which is far away from the first support seat, and one end of the second support arm, which is far away from the second support seat, are both in slidable hinged connection with the inner side of the support plate; the driving part drives the first support and the second support to move close to or away from each other.

Optionally, the supporting unit further includes a heating component, the heating component includes a mounting seat, a mounting column, an ultraviolet lamp, a first telescopic column and a second telescopic column, the ultraviolet lamp is mounted on the mounting column and located below the supporting plate, and the bottom of the mounting column extends into the mounting seat and then is slidably connected with the mounting seat; one end of the first telescopic column is hinged with the first support arm, and the other end of the first telescopic column horizontally extends into the mounting seat and then is connected with the mounting seat in a sliding manner; one end of the second telescopic column is hinged with the second supporting arm, and the other end of the second telescopic column horizontally extends into the mounting seat and then is connected with the mounting seat in a sliding manner;

the utility model discloses a support arm, including first support arm, first flexible post, second support arm, mounting column bottom is equipped with first wedge face and second wedge face, first flexible post is kept away from the one end of first support arm is equipped with third wedge face, third wedge face with first wedge face looks adaptation, the flexible post of second is kept away from the one end of second support arm is equipped with the fourth wedge face, third wedge face with second wedge face looks adaptation.

Furthermore, the mounting seat is provided with a sliding chute, the bottom of the mounting column is slidably arranged in the sliding chute, and the bottom of the mounting column is provided with a buffer spring; one end of the buffer spring is connected with the mounting column, and the other end of the buffer spring is connected with the mounting seat.

Furthermore, a guide mechanism is further arranged on the second fixed seat, and the guide mechanism comprises a plurality of guide units which are annularly distributed along the circumferential direction of the second fixed seat;

the direction unit is including articulated seat and spliced pole, be equipped with the articulated shaft on the articulated seat, the articulated shaft both ends with articulated seat rotates to be connected, spliced pole one end with articulated shaft fixed connection, the spliced pole other end is connected with but free rotation's gyro wheel, articulated shaft outer wall cover is equipped with the torsional spring, torsional spring one end with articulated seat fixed connection, its other end with spliced pole fixed connection.

Furthermore, still include drive mechanism, drive mechanism includes traction motor, rotates post and haulage rope, rotate the post with traction motor transmission is connected, haulage rope one end twine extremely rotate the post outer wall, the haulage rope other end with first fixing base is connected.

Optionally, the driving part includes a driving shaft and a guide rod arranged in parallel with the driving shaft, one end of the driving shaft is rotatably connected with the first fixing seat, and the other end of the driving shaft extends into the second fixing seat and is connected with a driving device; the outer wall of the driving shaft is respectively provided with a first thread section and a second thread section with opposite thread directions, the first support is sleeved on the outer wall of the driving shaft and is in threaded connection with the first thread section, the second support is sleeved on the outer wall of the driving shaft and is in threaded connection with the second thread section, one end of the guide rod is fixedly connected with the first fixed seat, and the other end of the guide rod penetrates through the first support and the second support in sequence and is then fixedly connected with the second fixed seat; the driving device is used for driving the driving shaft to rotate.

Further, the driving device comprises a driving motor and a main gear, and the main gear is in transmission connection with the driving motor;

the driving part further comprises a pinion which is sleeved on the driving shaft and meshed with the main gear.

Furthermore, the number of the guide rods is multiple, and the guide rods are distributed around the driving shaft in an annular mode.

Optionally, one side of the first fixing seat, which is far away from the second fixing seat, is of an arc-shaped structure.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

1. the utility model relates to a rationally, its non-excavation formula pipeline prosthetic devices that has supporting mechanism through the setting need not to strut the restoration hose to ventilating in the restoration hose again when carrying out pipeline restoration, and then carries out thermosetting to the restoration pipe that struts, has simplified the prosthetic operation of pipeline greatly, has improved pipeline prosthetic efficiency.

2. The utility model discloses in be used for strutting the backup pad of restoreing a plurality of support elements of hose and can move under the effect of first support arm and second support arm, and then make this non-excavation formula pipeline prosthetic devices can be applicable to the pipeline restoration of multiple different pipe diameters, improved the practicality of device greatly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a partial structure of a trenchless pipeline repairing apparatus provided in embodiment 1 of the present invention;

fig. 2 is a side view of a support plate provided in embodiment 1 of the present invention;

FIG. 3 is an enlarged cross-sectional view taken at A in FIG. 1;

FIG. 4 is an enlarged view at B of FIG. 1;

fig. 5 is a partial side view of a driving device provided in embodiment 1 of the present invention;

fig. 6 is a schematic construction diagram of a pipeline repairing method provided in embodiment 2 of the present invention.

Icon: 100-trenchless pipeline repairing device, 101-first fixed seat, 102-second fixed seat, 103-first support seat, 104-second support seat, 105-first support arm, 106-second support arm, 107-support plate, 108-mounting seat, 109-mounting column, 1010-ultraviolet lamp, 1011-first telescopic column, 1012-second telescopic column, 1013-buffer spring, 1014-hinged seat, 1015-connecting column, 1016-hinged shaft, 1017-roller, 1018-torsion spring, 1019-traction motor, 1020-rotating column, 1021-traction rope, 1022-driving shaft, 1023-guide rod, 1024-driving motor, 1025-main gear, 1026-auxiliary gear, 200-repairing hose, 300-pipeline to be repaired, 400-first silo, 500-second silo.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of this application is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated is not to be construed as limiting the present invention.

Examples

A trenchless pipeline rehabilitation apparatus 100 for expanding a rehabilitation hose 200 laid flat inside a pipeline 300 to be rehabilitated in a process of rehabilitating the pipeline. Referring to fig. 1 and 2, the trenchless pipeline repairing apparatus 100 includes a first fixing seat 101, a second fixing seat 102, and a supporting mechanism disposed between the first fixing seat 101 and the second fixing seat 102, wherein the supporting mechanism includes a plurality of supporting units annularly distributed, and the number of the supporting units in this embodiment is four. It should be noted that, in order to prevent the first fixing seat 101 from scratching the inner wall of the repair hose 200 when moving along the length direction of the repair hose 200 as much as possible, the side of the first fixing seat 101 away from the second fixing seat 102 is in an arc-shaped structure.

The supporting unit comprises a first support 103, a second support 104, a first support arm 105, a second support arm 106, a supporting plate 107 and a driving part, wherein one end of the first support arm 105 is hinged with the first support 103, one end of the second support arm 106 is hinged with the second support 104, and the middle part of the first support arm 105 is hinged with the middle part of the second support arm 106; one end of the first support arm 105 far away from the first support 103 and one end of the second support arm 106 far away from the second support 104 are both in slidable hinged connection with the inner side of the support plate 107; in this embodiment, the inner side of the supporting plate 107 is a side facing the driving part, the inner side of the supporting plate 107 is provided with a slide way, and two slide blocks capable of freely sliding are arranged in the slide way, one end of the first supporting arm 105 far away from the first support 103 is hinged to one of the slide blocks, and one end of the second supporting arm 106 far away from the second support 104 is hinged to the other slide block; the driving member drives the first support 103 and the second support 104 toward or away from each other. It should be noted that, in order to make the supporting plate 107 fit the inner wall of the pipeline as much as possible, the outer side of the supporting plate 107 is in an arc-shaped structure and is matched with the curvature of the inner wall of the pipeline.

Through the arrangement, in practical application, the first support 103 and the second support 104 are driven to be close to each other through the driving part, so that the first support arm 105 and the second support arm 106 rotate around the hinge point at the middle parts of the first support arm and the second support arm, the support plate 107 moves towards the direction far away from the first support 103 and the second support 104 under the action of the first support arm 105 and the second support arm 106, the repairing hose 200 is stretched under the combined action of the support plates 107, and the outer wall of the repairing hose 200 is attached to the inner wall of the pipeline 300 to be repaired. On the contrary, when the first support 103 and the second support 104 are far away from each other under the driving of the driving part, the supporting plate 107 moves towards the direction close to the first support 103 and the second support 104, so that the trenchless pipeline repairing device 100 is convenient to store, and meanwhile, the trenchless pipeline repairing device 100 can be suitable for repairing pipelines with different pipe diameters, and the practicability of the device is improved.

In this embodiment, referring to fig. 3, the supporting unit further includes a heating component for heating and curing the repair hose 200, and the heating component includes a mounting seat 108, a mounting column 109, an ultraviolet lamp 1010, a first telescopic column 1011, and a second telescopic column 1012.

The ultraviolet lamp 1010 is mounted at the top of the mounting column 109 and is located below the support plate 107, and the bottom of the mounting column 109 extends into the mounting seat 108 and then is connected with the mounting seat 108 in a sliding manner; one end of the first telescopic column 1011 is hinged with the first support arm 105, and the other end thereof horizontally extends into the mounting seat 108 and then is connected with the mounting seat 108 in a sliding manner; one end of the second telescopic column 1012 is hinged to the second supporting arm 106, and the other end extends horizontally into the mounting seat 108 and then is slidably connected to the mounting seat 108.

Meanwhile, the bottom of the mounting column 109 is provided with a first wedge surface and a second wedge surface, one end of the first telescopic column 1011, which is far away from the first support arm 105, is provided with a third wedge surface, the third wedge surface is matched with the first wedge surface, one end of the second telescopic column 1012, which is far away from the second support arm 106, is provided with a fourth wedge surface, and the third wedge surface is matched with the second wedge surface.

Through the arrangement, when the first support 103 and the second support 104 approach each other, the included angle between the first support arm 105 and the second support arm 106 is reduced, so that the first support arm 105 is utilized to drive the end of the first telescopic column 1011 inside the mounting column 109 to slide towards the second telescopic column 1012 along the horizontal direction, the second support arm 106 is utilized to drive the end of the second telescopic column 1012 inside the mounting column 109 to slide towards the first telescopic column 1011 along the horizontal direction, thereby realizing that the third wedge-shaped surface of the first telescopic column 1011 is utilized to push the first wedge-shaped surface of the mounting column 109, and the fourth wedge-shaped surface of the second telescopic column 1012 is utilized to push the second wedge-shaped surface of the mounting column 109, thereby realizing that the mounting column 109 is pushed from the top of the mounting seat 108, thereby realizing that when the support plate 107 props up the repair hose 200, the distance between the ultraviolet lamp 1010 and the support plate 107 is ensured to be unchanged as far as possible, thereby realizing that the position of the ultraviolet lamp 1010 is adjusted according to the pipe diameter of the pipeline, the ultraviolet lamp 1010 is always positioned at the optimal heating and curing position, so that the heating and curing effect is not influenced by the pipe diameter. Meanwhile, the structural strength of the first support arm 105 and the second support arm 106 can be improved by arranging the first telescopic column 1011 and the second telescopic column 1012, so that the support plates 107 can be better supported.

Meanwhile, in order to improve the stability of the mounting column 109 during sliding and prevent the mounting column 109 from sliding out of the mounting seat 108, the mounting seat 108 is provided with a sliding groove, the bottom of the mounting column 109 is arranged in the sliding groove in a sliding manner, and the mounting column 109 has a certain friction force with the inner wall of the sliding groove, so that the mounting column 109 of the support unit positioned at the lowest position is prevented from sliding downwards under the action of self gravity to change the position of the ultraviolet lamp 1010; the bottom of the mounting column 109 is provided with a buffer spring 1013; one end of the buffer spring 1013 is connected to the mounting post 109, and the other end thereof is connected to the mounting seat 108. The number of the buffer springs 1013 is not limited herein, and may be selected according to actual needs. When the first telescopic column 1011 and the second telescopic column 1012 are not pushing against the mounting column 109, the buffer spring 1013 is in a contracted state.

In addition, in order to enable the trenchless pipeline repairing apparatus 100 to move more smoothly in the pipeline, the second fixing seat 102 is further provided with a guiding mechanism, the guiding mechanism includes a plurality of guiding units annularly distributed along the circumferential direction of the second fixing seat 102, and the number of the guiding units in this embodiment is four.

Referring to fig. 4, the guiding unit includes a hinge base 1014 and a connecting column 1015, a hinge shaft 1016 is disposed on the hinge base 1014, two ends of the hinge shaft 1016 are rotatably connected to the hinge base 1014, one end of the connecting column 1015 is fixedly connected to the hinge shaft 1016, the other end of the connecting column 1015 is connected to a roller 1017 capable of freely rotating, a torsion spring 1018 is sleeved on an outer wall of the hinge shaft 1016, one end of the torsion spring 1018 is fixedly connected to the hinge base 1014, and the other end of the torsion spring 1018 is fixedly connected to the connecting column 1015. Through setting up torsional spring 1018, be convenient for lay guiding mechanism to repair in the hose 200 at the pipeline repair initial stage, and make spliced pole 1015 can make the inner wall laminating of gyro wheel 1017 and pipeline under torsional spring 1018's effect after rotating around articulated shaft 1016 to be applicable to the pipeline of multiple different pipe diameters.

In order to facilitate the movement of this trenchless pipeline repairing device 100 along the length direction of repairing the hose 200 to realize the whole hose 200 of repairing of thermosetting, this trenchless pipeline repairing device 100 still includes drive mechanism, drive mechanism includes traction motor 1019, rotates post 1020 and haulage rope 1021, rotates post 1020 and traction motor 1019 transmission and is connected, haulage rope 1021 one end is twined to rotating post 1020 outer wall, the haulage rope 1021 other end is connected with first fixing base 101. The rotary column 1020 is driven to rotate by the traction motor 1019, so that when the traction rope 1021 is continuously wound on the rotary column 1020, the first fixing seat 101 can be pulled by the traction rope 1021 to move along the length direction of the repair hose 200.

In this embodiment, the driving part includes a driving shaft 1022 and a guiding rod 1023 parallel to the driving shaft 1022, one end of the driving shaft 1022 is rotatably connected to the first fixing base 101, and the other end of the driving shaft 1022 extends into the second fixing base 102 and is connected to a driving device; the outer wall of the driving shaft 1022 is respectively provided with a first thread section and a second thread section with opposite thread directions, the first support 103 is sleeved on the outer wall of the driving shaft 1022 and is in threaded connection with the first thread section, the second support 104 is sleeved on the outer wall of the driving shaft 1022 and is in threaded connection with the second thread section, one end of the guide rod 1023 is fixedly connected with the first fixed seat 101, and the other end of the guide rod 1023 penetrates through the first support 103 and the second support 104 in sequence and is fixedly connected with the second fixed seat 102; the driving device is used for driving the driving shaft 1022 to rotate. In order to improve the stability of the first and

second supports

103 and 104 during movement, the number of the guide rods 1023 is plural, and the plural guide rods 1023 are distributed annularly around the driving shaft 1022, and the number of the guide rods 1023 of each driving part is two in this embodiment. When the driving shaft 1022 is driven by the driving device to rotate forward, the first support 103 in threaded connection with the first threaded section of the driving shaft 1022 and the second support 104 in threaded connection with the second threaded section of the driving shaft 1022 move oppositely along the axial direction of the driving shaft 1022, and when the driving shaft 1022 is driven by the driving device to rotate reversely, the first support 103 and the second support 104 move reversely along the axial direction of the driving shaft 1022, so that the first support 103 and the second support 104 approach to or separate from each other. And the first support 103 and the second support 104 are more stable in movement by adopting a thread transmission mode.

Meanwhile, in order to save the resource investment as much as possible, the driving device comprises a driving motor 1024 and a main gear 1025, and the main gear 1025 is in transmission connection with the driving motor 1024; the driving member further includes a secondary gear 1026, and the secondary gear 1026 is sleeved on the driving shaft 1022 and is engaged with the main gear 1025. Referring to fig. 5, in the present embodiment, the number of the supporting units is four, and the number of the sub-gears 1026 is also four, and the sub-gears are annularly distributed around the circumference of the main gear 1025 and are meshed with the main gear 1025. Through the arrangement, when the driving motor 1024 drives the main gear 1025 to rotate, the main gear 1025 can simultaneously drive the driving shafts 1022 of all the supporting units to rotate in the same direction, so that one driving motor 1024 is utilized to drive all the supporting plates 107 to act simultaneously, and the cost of manufacturing the device is reduced.

It should be noted that, in this embodiment, the power supplies used by the ultraviolet lamp 1010, the traction motor 1019, and the driving motor 1024 may be independently disposed at corresponding positions as needed, and are not described in detail herein.

To better explain the method of using the trenchless pipeline rehabilitation apparatus 100, the method of repairing the pipeline will be described in detail below, and referring to fig. 6, the method includes the following steps:

s1, paving a repairing hose 200 in a pipeline 300 to be repaired between a first vertical shaft 400 and a second vertical shaft 500, and installing a traction mechanism at a proper position of the second vertical shaft 500;

s2, the repairing hose 200 close to one end of the first shaft 400 is expanded to a certain degree, the first fixing seat 101 and the supporting mechanism are sequentially placed into the repairing hose 200 by taking the first fixing seat 101 as the front end, and the traction rope 1021 is connected with the first fixing seat 101;

s3, driving the first support 103 and the second support 104 to be close to each other by using a driving part of each support unit, and then, supporting plates 107 of all the support units distributed annularly open the repair hose 200, so that the outer wall of the repair hose 200 is attached to the inner wall of the pipeline 300 to be repaired, and continuously heating and curing the opened repair hose 200 by using an ultraviolet lamp 1010;

s4, after the expanded repair hose 200 is cured, starting a traction motor 1019, rotating connecting columns 1015 of a plurality of guide units by a certain angle around a hinge shaft 1016, after the second fixing seat 102 smoothly enters the repair hose 200, closing the traction motor 1019 and loosening the connecting columns 1015 to enable a roller 1017 to be attached to the inner wall of the cured repair hose 200, expanding the next section of repair hose 200 under the action of the support plate 107 at the moment, and continuously heating and curing the expanded repair hose 200 by an ultraviolet lamp 1010;

s5, after the section of the expanded repair hose 200 is cured, restarting the traction motor 1019, expanding the next section of the repair hose 200 by using the support plate 107, then closing the traction motor 1019, and heating and curing the section of the repair hose 200 by using the ultraviolet lamp 1010;

and S6, heating and curing the rest of the repair hoses 200 according to the operation of the step S5, taking out the trenchless pipeline repair device 100 after the whole repair hose 200 is heated and cured, and checking the repair hoses 200 after heating and curing.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The trenchless pipeline repairing device is characterized by comprising a first fixed seat, a second fixed seat and a supporting mechanism arranged between the first fixed seat and the second fixed seat, wherein the supporting mechanism comprises a plurality of supporting units which are distributed annularly;

2. The trenchless pipeline rehabilitation device of claim 1, wherein the support unit further comprises a heating element, the heating element comprises a mounting seat, a mounting column, an ultraviolet lamp, a first telescopic column and a second telescopic column, the ultraviolet lamp is mounted on the mounting column and located below the support plate, and the bottom of the mounting column extends into the mounting seat and then is slidably connected with the mounting seat; one end of the first telescopic column is hinged with the first support arm, and the other end of the first telescopic column horizontally extends into the mounting seat and then is connected with the mounting seat in a sliding manner; one end of the second telescopic column is hinged with the second supporting arm, and the other end of the second telescopic column horizontally extends into the mounting seat and then is connected with the mounting seat in a sliding manner;

3. The trenchless pipeline rehabilitation device of claim 2, wherein the mounting base is provided with a sliding groove, the bottom of the mounting column is slidably arranged in the sliding groove, and the bottom of the mounting column is provided with a buffer spring; one end of the buffer spring is connected with the mounting column, and the other end of the buffer spring is connected with the mounting seat.

4. The trenchless pipeline rehabilitation device of claim 3, wherein the second fixing seat is further provided with a guide mechanism, and the guide mechanism comprises a plurality of guide units which are annularly distributed along the circumferential direction of the second fixing seat;

5. The trenchless pipeline rehabilitation device of claim 4, further comprising a traction mechanism, wherein the traction mechanism comprises a traction motor, a rotating column and a traction rope, the rotating column is in transmission connection with the traction motor, one end of the traction rope is wound on the outer wall of the rotating column, and the other end of the traction rope is connected with the first fixing seat.

6. The trenchless pipeline rehabilitation device as claimed in claim 1, wherein the driving part comprises a driving shaft and a guide rod arranged in parallel with the driving shaft, one end of the driving shaft is rotatably connected with the first fixed seat, and the other end of the driving shaft extends into the second fixed seat and is connected with a driving device; the outer wall of the driving shaft is respectively provided with a first thread section and a second thread section with opposite thread directions, the first support is sleeved on the outer wall of the driving shaft and is in threaded connection with the first thread section, the second support is sleeved on the outer wall of the driving shaft and is in threaded connection with the second thread section, one end of the guide rod is fixedly connected with the first fixed seat, and the other end of the guide rod penetrates through the first support and the second support in sequence and is then fixedly connected with the second fixed seat; the driving device is used for driving the driving shaft to rotate.

7. The trenchless pipeline rehabilitation device of claim 6, wherein the driving device comprises a driving motor and a main gear, and the main gear is in transmission connection with the driving motor;

8. The trenchless pipeline rehabilitation device of claim 6, wherein the number of the guide rods is plural, and the plural guide rods are distributed annularly around the drive shaft.

9. The trenchless pipeline rehabilitation device of claim 1, wherein a side of the first anchor block remote from the second anchor block is of an arcuate configuration.