A non-excavation pipe photocured soft tube pre-impregnation device, a pre-impregnation process and a lining soft tube adopting the pre-impregnation process

Abstract

The application discloses a non-excavation pipeline photocured hose pre-impregnation device, a pre-impregnation process and a lining hose adopting the pre-impregnation process, belongs to the photocured hose production field, is used for pre-impregnation and comprises a box body provided with a box body inlet, a box body outlet and a light shield plate, a frame body is provided with an inlet frame body guide roller and an outlet frame body guide roller, an inlet upper supporting roller is arranged between the inlet frame body guide roller and the box body inlet, an inlet lower supporting roller corresponding to the inlet upper supporting roller is arranged below the inlet frame body guide roller, an outlet upper supporting roller is arranged at a position between the outlet frame body guide roller and the box body outlet, and an outlet lower supporting roller is arranged at a position corresponding to the outlet upper supporting roller below the outlet frame body guide roller. According to the technical scheme, the pre-impregnation of the lining pipe in the photocured hose can be realized, and the contact uniformity and reliability in the pre-impregnation process are ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of light-cured hose production, and in particular, relates to a non-excavation pipeline light-cured hose pre-impregnation device, a pre-impregnation process, and a lining hose adopting the pre-impregnation process. BACKGROUND

[0002] The light-cured hose is used for pipeline relining process, which usually uses a special glass fiber braid, impregnates with an unsaturated polyester resin or vinyl ester resin system containing a photoinitiator, and uses a special lamp to emit ultraviolet light to initiate the internal resin curing during the process of repairing the pipeline, so as to fix it inside the pipeline, thereby repairing the pipeline and prolonging the service life of the pipeline.

[0003] Referring to the patent document CN115890969A, it discloses a light-cured hose pre-impregnation process and a pre-impregnation device, and specifically discloses the following technical content: S1: weaving glass fibers into a braid, and then shaping the roundness of the glass fiber inner tube through a blanking machine to form a whole round glass fiber inner tube; S2: wrapping a light-transmitting inner film on the inner wall of the glass fiber inner tube, wrapping an outer film on the outer wall of the glass fiber inner tube, and wrapping an ultraviolet isolation film on the outer wall of the outer film to form a hose blank; S3: adding resin, curing agent and defoaming agent into a stirring device, mixing them thoroughly to form a light-cured pre-impregnation liquid, and adding it into a pre-impregnation device; S4: introducing the hose blank into the light-cured hose pre-impregnation device, and then stretching and pre-impregnating the hose blank through a stretching assembly. After the hose blank is impregnated in the pre-impregnation device, it is irradiated by a UV lamp for 3-5s to thicken the light-cured pre-impregnation liquid, and then it is wound into a temperature-controlled transport box for storage and transportation.

[0004] In the above step S3, the pre-impregnation device is needed to pre-impregnate the hose blank, but the applicant believes that the pre-impregnation device in the prior art still has room for improvement to improve the pre-impregnation effect and quality, and to ensure the contact stability and reliability of the glue liquid and the lining hose. SUMMARY

[0005] The purpose of the present application is to provide a non-excavation pipeline light-cured hose pre-impregnation device, a pre-impregnation process, and a lining hose adopting the pre-impregnation process, which can realize the pre-impregnation of the lining tube in the light-cured hose, and ensure the contact uniformity and reliability during the pre-impregnation process.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme:

[0007] The non-excavation pipeline photocuring soft pipe pre-dipping device comprises a box body, the box body is provided with a box body inlet and a box body outlet in the feeding and discharging directions, the top of the box body is provided with a light shield plate in the direction of the box body outlet, the light shield plate is provided with a lifting driver, the lifting driver is connected with a frame body, the both ends of the frame body are provided with an inlet frame body guide roller and an outlet frame body guide roller, an inlet upper supporting roller is arranged between the inlet frame body guide roller and the box body inlet, and an inlet lower supporting roller corresponding to the inlet upper supporting roller is arranged below the inlet frame body guide roller; an outlet upper supporting roller is arranged at the position between the outlet frame body guide roller and the box body outlet, and an outlet lower supporting roller corresponding to the outlet upper supporting roller is arranged below the outlet frame body guide roller; the inner lining soft pipe enters above the inlet upper supporting roller through the box body inlet, is guided to the inlet lower supporting roller through the inlet frame body guide roller, is sent to the outlet lower supporting roller through the inlet lower supporting roller, is guided to the outlet frame body guide roller through the outlet lower supporting roller, is guided to above the outlet upper supporting roller through the outlet frame body guide roller, and is sent to the outlet scraping rubber plate at the box body outlet through the outlet upper supporting roller; the outlet scraping rubber plate is located at the position of the box body outlet; the box body is provided with a box body liquid inlet pipe and a liquid outlet pipe at the positions close to the both sides of the bottom, and the box body liquid inlet pipe and the liquid outlet pipe are located on the same horizontal plane.

[0008] As one of the preferred technical solutions of the present application, the frame body comprises an upper frame body and a lower frame body, the upper frame body and the lower frame body are arranged in parallel and are connected through a frame body fixing rod at the corner position, and the both ends of the upper frame body and the lower frame body are respectively provided with an inlet frame body guide roller and an outlet frame body guide roller.

[0009] As one of the preferred technical solutions of the present application, a driver fixing plate is further arranged between the upper frame body and the lower frame body, a supporting roller driver is fixedly arranged on the driver fixing plate, the supporting roller driver has double telescopic ends, the double telescopic ends of the supporting roller driver are respectively connected with a supporting drive connecting plate, strip-shaped through holes are respectively formed in the both ends of the supporting drive connecting plate, a supporting adjusting rod is slidably connected in the strip-shaped through hole, the supporting adjusting rod is located at the bottom end of a supporting roller adjusting plate, the middle position of the supporting roller adjusting plate is respectively hinged to the end portions of the corresponding upper frame body and lower frame body, and the inlet upper supporting roller is located at the top end of the supporting roller adjusting plate.

[0010] As one of the preferred technical solutions of the present application, the both ends of the top of the upper frame body are provided with hinged seats, the hinged seats of the upper frame body are respectively hinged to the bottom ends of tensioning rotating plates, the top ends of the tensioning rotating plates are rotatably connected to the end portions of tensioning rollers, and the tensioning rollers are respectively located between the inlet upper supporting roller and the inlet frame body guide roller and between the outlet frame body guide roller and the outlet upper supporting roller.

[0011] As one of the preferred technical solutions of the present application, a strip-shaped through hole is formed at the middle position of the tensioning rotating plate, and a tensioning adjusting rod is slidably connected between the tensioning rotating plates on both sides of the upper frame body through the strip-shaped through hole, the tensioning adjusting rod is connected with the hinge seats at both ends of the tensioning driver, and the tensioning driver is connected with the upper frame body through the fixing plate.

[0012] As one of the preferred technical solutions of the present application, the outlet glue scraping plate comprises an upper scraping plate above the inner lining hose and a lower scraping plate below the inner lining hose, the upper scraping plate and the lower scraping plate are both provided with liquid leakage notches at the positions connected with the box body, and the upper scraping plate and the lower scraping plate are circularly bent at the positions in contact with the inner lining hose.

[0013] As one of the preferred technical solutions of the present application, the box body is provided with an inlet bottom roller below the inner lining hose and an inlet top roller in the vertical strip-shaped through hole of the box body inlet, the two ends of the inlet top roller are connected with the inlet roller body adjuster, and the inlet roller body adjuster is fixed on the box body at the position of the box body inlet.

[0014] A pre-impregnation process using the above non-excavation pipeline photocuring hose pre-impregnation device, the process comprising the following steps: the inner lining hose is guided into the position of the inlet upper supporting roller through the inlet bottom roller and the inlet top roller at the position of the box body inlet, is guided into the position of the inlet lower supporting roller through the guiding of the tensioning roller after tensioning, and is guided into the position below the outlet lower supporting roller after bypassing the lower side of the inlet lower supporting roller, the inlet lower supporting roller and the outlet lower supporting roller are located at the liquid immersion position in the box body; the inner lining hose is sent to the inner side of the outlet frame body guide roller after passing above the outlet lower supporting roller, the inner lining hose passing the inner side of the outlet frame body guide roller is contacted with the tensioning roller and is then sent to the position above the outlet upper supporting roller, and is sent out through the outlet glue scraping plate after passing the outlet upper supporting roller; the liquid immersion height in the box body is maintained through the box body liquid inlet pipe and the liquid outlet pipe.

[0015] An inner lining hose using the above pre-impregnation process.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The present application can realize the lifting movement of the overall frame body and the roller body in the box body through the lifting driver, can realize the adjustment of the immersion height through the lifting movement, can realize the guidance of the inner lining hose and the adjustment of the tensioning force through the structures such as the inlet upper supporting roller, the inlet frame body guide roller, the inlet lower supporting roller, the outlet upper supporting roller and the outlet frame body guide roller, can realize the sufficient contact of the inner lining hose with the liquid, and can ensure the stability and reliability of the pre-impregnation and can be flexibly adjusted according to different inner lining hoses. Attached Figure Description

[0018] Figure 1 This is the three-dimensional representation of the present application. Figure 1 .

[0019] Figure 2 This is the three-dimensional representation of the present application. Figure 2 .

[0020] Figure 3 yes Figure 1 A 3D image after the sunshade has been removed.

[0021] Figure 4 This is a top view of this application.

[0022] Figure 5 yes Figure 4 A cross-sectional view at the position and direction shown in AA.

[0023] In the diagram: 1. Box body; 2. Light shield; 3. Box inlet; 4. Inlet bottom roller; 5. Inlet top roller; 6. Inner lining hose; 7. Inlet roller adjuster; 8. Lifting driver; 9. Box inlet pipe; 10. Outlet scraper; 11. Box outlet; 12. Tensioning roller; 13. Tensioning rotating plate; 14. Tensioning adjusting rod; 15. Tensioning driver; 16. Inlet upper support roller; 17. Support roller adjusting plate; 18. Inlet frame guide roller; 19. Support adjusting rod; 20. Support drive connecting plate; 21. Support roller driver; 22. Inlet lower support roller; 23. Upper frame; 24. Lower frame; 25. Frame fixing rod; 26. Driver fixing plate; 27. Outlet lower support roller; 28. Outlet frame guide roller; 29. ​​Outlet upper support roller; 30. Lower scraper; 31. Upper scraper; 32. Outlet pipe. Detailed Implementation

[0024] The technical solutions described in this application will be further described below with reference to the accompanying drawings and embodiments.

[0025] Example 1: A trenchless pipe light-curing hose prepreg device includes a box 1 with a rectangular structure. The box 1 is provided with a box inlet 3 and an outlet scraper 10 in the feeding and discharging directions, respectively. An inlet bottom roller 4 and an inlet top roller 5 are provided at the box inlet 3. The position of the inlet bottom roller 4 relative to the box inlet 3 is fixed. The two ends of the inlet top roller 5 are rotatably set in a strip hole through a shaft and are connected to the telescopic end of the inlet roller adjuster 7 at the position of the strip hole. The inlet roller adjuster 7 is fixed on the box 1 at the position of the box inlet 3.

[0026] The gap between the inlet bottom roller 4 and the inlet top roller 5 is used for the inner liner hose 6 to pass through, and the inner liner hose 6 is sent to the top of the inlet upper supporting roller 16 after passing through the inlet bottom roller 4 and the inlet top roller 5. The inlet upper supporting roller 16 is located at the top end of the supporting roller adjusting plate 17, which is hinged to the end of the upper frame body 23 at the middle position. The bottom end of the supporting roller adjusting plate 17 is connected with the supporting adjusting rod 19, which is slidingly arranged in the strip-shaped through hole at both ends of the supporting drive connecting plate 20. The supporting drive connecting plate 20 is located at the telescopic end of the supporting roller drive 21. The inlet lower supporting roller 22 is arranged at the corresponding position below the inlet upper supporting roller 16, and is also connected with the lower frame body 24 and the supporting drive connecting plate 20 through the corresponding supporting roller adjusting plate 17. The supporting roller drive 21 is connected with the upper frame body 23 and the lower frame body 24 through the drive fixing plate 26, and the upper frame body 23 and the lower frame body 24 are arranged in parallel and fixedly connected into an integrated body through the frame fixing rod 25 at the corner positions.

[0027] The upper frame body 23 and the lower frame body 24 are respectively provided with pairs of inlet frame guide rollers 18 and outlet frame guide rollers 28 at both ends. The tensioning roller 12 is arranged between the inlet upper supporting roller 16 and the inlet frame guide roller 18. The both ends of the tensioning roller 12 are rotatably connected with the top end of the tensioning rotating plate 13. The bottom end of the tensioning rotating plate 13 is hinged to the hinge seat of the upper frame body 23. The tensioning rotating plate 13 is provided with a strip-shaped hole at the middle position, and the tensioning adjusting rod 14 is slidingly connected through the strip-shaped hole. The both ends of the tensioning adjusting rod 14 are hinged to the tensioning drive 15. The fixed plate of the tensioning drive 15 is connected with the upper frame body 23. The fixed plate top end of the tensioning drive 15 is also fixedly connected with the telescopic end of the lifting drive 8. The bottom end of the lifting drive 8 is fixed to the sunshade plate 2. The sunshade plate 2 is located near the box outlet 11. The outlet rubber scraping plate 10 is arranged at the position of the box outlet 11. The outlet rubber scraping plate 10 includes a lower scraping plate 30 and an upper scraping plate 31. The lower scraping plate 30 and the upper scraping plate 31 are in contact with the top surface and the bottom surface of the inner liner hose 6 through the circular-arc bending part, so as to scrape the glue liquid.

[0028] The box 1 is provided with a box liquid inlet pipe 9 and a liquid outlet pipe 32 at both ends of the box inlet 3 and the box outlet 11.

[0029] Example two: A pre-dipping process using the non-excavation pipe light-cured soft tube pre-dipping device as described in example one, the process comprising the following steps, the inner lining soft tube 6 is guided into the inlet upper supporting roller 16 position through the inlet bottom roller 4 and inlet top roller 5 at the box inlet 3 position, and after tensioning through the guide of the tensioning roller 12, it is guided into the inlet lower supporting roller 22 position through the inlet frame guide roller 18, and bypasses the lower part of the inlet lower supporting roller 22 to enter the lower part of the outlet lower supporting roller 27, the inlet lower supporting roller 22 and the outlet lower supporting roller 27 are located at the dipping position in the box 1; the inner lining soft tube 6 passes above the outlet lower supporting roller 27 and is sent to the inner side of the outlet frame guide roller 28, after the inner lining soft tube 6 passing the inner side of the outlet frame guide roller 28 contacts the tensioning roller 12, it is sent above the outlet upper supporting roller 29, and after passing the outlet upper supporting roller 29, it is sent out through the outlet rubber scraping plate 10; the dipping height in the box 1 is maintained through the box liquid inlet pipe 9 and liquid outlet pipe 32.

[0030] Example three: An inner lining soft tube produced through the pre-dipping process described in example two.

[0031] On the basis of the above examples, the following paragraphs continue to describe the technical features involved therein and the functions and effects of the technical features in the technical solution in detail, to help technicians fully understand the technical solution and reproduce it.

[0032] In this application, the box 1 is a rectangular structure with an open top, and the box inlet 3 and the box outlet 11 are respectively arranged on both sides of the open top, the inlet bottom roller 4 and the inlet top roller 5 are arranged at the box inlet 3 to realize extension, and the inlet top roller 5 can realize extension pressure adjustment under the drive of the inlet roller body adjuster 7. The outlet rubber scraping plate 10 is arranged at the position of the box outlet 11, the outlet rubber scraping plate 10 includes the lower scraping plate 30 arranged below the inner lining soft tube 6 and the upper scraping plate 31 arranged above the inner lining soft tube 6, and the lower scraping plate 30 and the upper scraping plate 31 are both provided with liquid leakage notches at the connection position with the box 1, so that the scraped glue liquid can flow out from below. The lower scraping plate 30 and the upper scraping plate 31 are both provided with a circular arc bending structure at the position contacting the inner lining soft tube 6, so as to scrape the excess glue liquid of the inner lining soft tube 6.

[0033] In the application, the light shield plate 2 is fixedly connected with a lifting driver 8, the telescopic end of the lifting driver 8 is connected with the shelf structure composed of the upper shelf body 23 and the lower shelf body 24 through a fixed plate, so as to realize the overall movement of the shelf composed of the upper shelf body 23 and the lower shelf body 24, the overall movement of the shelf drives the movement of various rollers arranged thereon, the movement of the rollers can move the lining hose 6 through the rollers to the bottom glue position, realize the pre-dipping of the lining hose, avoid the uneven distribution of glue caused by the influence of internal pre-dipping glue, and improve the stability of pre-dipping.

[0034] In the application, one end of the upper shelf body 23 is connected with an inlet upper supporting roller 16 through a supporting roller adjusting plate 17, one end of the lower shelf body 24 is connected with an inlet lower supporting roller 22 through the supporting roller adjusting plate 17, and the inlet upper supporting roller 16 and the inlet lower supporting roller 22 are correspondingly arranged; one end of the upper shelf body 23 is hinged to the middle position of the supporting roller adjusting plate 17, one end of the lower shelf body 24 is hinged to the middle position of the supporting roller adjusting plate 17, the supporting roller adjusting plate 17 is located at both ends of the inlet upper supporting roller 16 and the inlet lower supporting roller 22, and the two correspondingly arranged supporting roller adjusting plates 17 are connected as a whole through a supporting adjusting rod 19, the supporting adjusting rod 19 is slidably connected with the strip-shaped through holes at both ends of a supporting driving connecting plate 20, and the supporting driving connecting plate 20 is hinged to one of the two telescopic ends of a supporting roller driver 21, so as to realize the linkage of the supporting adjusting rod 19 under the driving of the telescopic end of the supporting roller driver 21.

[0035] In the application, the supporting roller driver 21 is fixedly connected with a driver fixed plate 26, the driver fixed plate 26 is connected with the upper shelf body 23 and the lower shelf body 24 at both ends, and the upper shelf body 23 and the lower shelf body 24 are fixedly connected through a shelf fixed rod 25 at the corner position. The end of the upper shelf body 23 and the end of the lower shelf body 24 are respectively provided with an inlet shelf guide roller 18 and an outlet shelf guide roller 28, the inlet shelf guide roller 18 is two and is arranged in an upper and lower distribution, and the outlet shelf guide roller 28 is two and is arranged in an upper and lower distribution.

[0036] In the application, the entry upper supporting roller 16 and the entry frame body guide roller 18 are provided with a tensioning roller 12, which is located at the top end of a tensioning rotating plate 13, the bottom end of which is hinged to the hinge seat of the upper frame body 23; the tensioning rotating plate 13 is processed with a strip-shaped hole extending along the length direction at the middle position, the tensioning rotating plate 13 is located at both ends of the tensioning roller 12, and the tensioning adjusting rod 14 is arranged between the adjacent tensioning rotating plates 13 on the tensioning roller 12, and the tensioning adjusting rod 14 is slidably connected with the tensioning rotating plate 13 through the strip-shaped hole; the tensioning adjusting rod 14 is hinged to both ends of the tensioning driver 15, and is driven by the tensioning driver 15 to move along the strip-shaped hole of the tensioning rotating plate 13. The tensioning driver 15 is connected with the fixed plate of the upper frame body 23. The telescopic end of the lifting driver 8 is connected with the fixed plate of the upper frame body 23.

[0037] In the application, the tank liquid inlet pipe 9 and the tank liquid outlet pipe 32 are arranged at the feeding and discharging direction ends of the tank 1, and the tank liquid inlet pipe 9 and the upper frame body 23 are used to maintain the dynamic stability of the internal glue liquid.

[0038] The lifting driver 8 drives the frame body to make regular dynamic lifting in the tank 1, realizes the tensioning of the inner lining hose 6 and the immersion of the glue liquid through the entry upper supporting roller 16, the exit upper supporting roller 29, the entry lower supporting roller 22 and the exit lower supporting roller 27, and the entry lower supporting roller 22 and the exit lower supporting roller 27 can realize the adjustment of the immersion depth of the glue liquid. And under the action of the tensioning roller 12, the tensioning degree of the inner lining hose 6 during the immersion of the glue liquid can be ensured, so as to ensure the stretching state of the inner lining hose 6.

[0039] Finally, although the present specification is described according to the embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and the person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments which can be understood by the person skilled in the art.

Claims

1. A non-excavation pipeline photocured hose pre-dip device, comprising a box (1), the box (1) is provided with a box inlet (3) and a box outlet (11) in the feeding and discharging directions respectively, characterized in that: The box (1) is provided with a light shield plate (2) on the top of the box outlet (11), the light shield plate (2) is provided with a lifting driver (8), the lifting driver (8) is connected with a frame body, the both ends of the frame body are respectively provided with an inlet frame body guide roller (18) and an outlet frame body guide roller (28), the inlet frame body guide roller (18) and the box inlet (3) are provided with an inlet upper supporting roller (16), the lower side of the inlet frame body guide roller (18) is provided with an inlet lower supporting roller (22) corresponding to the inlet upper supporting roller (16); the outlet frame body guide roller (28) and the box outlet (11) are provided with an outlet upper supporting roller (29) at the position, the lower side of the outlet frame body guide roller (28) is provided with an outlet lower supporting roller (27) corresponding to the outlet upper supporting roller (29), the inner lining hose (6) enters the upper side of the inlet upper supporting roller (16) through the box inlet (3), is guided to the inlet lower supporting roller (22) through the inlet frame body guide roller (18), is sent to the outlet lower supporting roller (27) through the inlet lower supporting roller (22), is guided to the outlet frame body guide roller (28) through the outlet lower supporting roller (27), is guided to the upper side of the outlet upper supporting roller (29) through the outlet frame body guide roller (28), is sent to the outlet rubber scraping plate (10) at the box outlet (11) through the outlet upper supporting roller (29), the outlet rubber scraping plate (10) is located at the position of the box outlet (11); the box (1) is provided with a box liquid inlet pipe (9) and a liquid outlet pipe (32) at the positions close to the both sides of the bottom, the box liquid inlet pipe (9) and the liquid outlet pipe (32) are located at the same horizontal plane; the frame body comprises an upper frame body (23) and a lower frame body (24), the upper frame body (23) and the lower frame body (24) are arranged in parallel and are connected through the frame body fixing rod (25) at the corner position, the both ends of the upper frame body (23) and the lower frame body (24) are respectively provided with the inlet frame body guide roller (18) and the outlet frame body guide roller (28), the inlet frame body guide roller (18) and the outlet frame body guide roller (28) on the upper frame body (23) are respectively arranged correspondingly with the inlet frame body guide roller (18) and the outlet frame body guide roller (28) on the lower frame body (24); the upper frame body (23) and the lower frame body (24) are further provided with a driver fixing plate (26), the driver fixing plate (26) is fixedly provided with a supporting roller driver (21), the supporting roller driver (21) has double telescopic ends, the double telescopic ends of the supporting roller driver (21) are respectively connected with a supporting drive connecting plate (20), the both ends of the supporting drive connecting plate (20) are respectively provided with a strip-shaped through hole, a supporting adjusting rod (19) is slidably connected in the strip-shaped through hole, the supporting adjusting rod (19) is located at the bottom end of a supporting roller adjusting plate (17), the middle position of the supporting roller adjusting plate (17) is respectively hinged to the end of the corresponding upper frame body (23) and lower frame body (24), the inlet upper supporting roller (16) is located at the top end of the supporting roller adjusting plate (17).The outlet glue scraping plate (10) comprises an upper scraping plate (31) above the inner lining hose (6) and a lower scraping plate (30) below the inner lining hose (6), the upper scraping plate (31) and the lower scraping plate (30) are provided with liquid leakage gaps at positions connected with the box body (1); the upper scraping plate (31) and the lower scraping plate (30) are circularly bent at positions in contact with the inner lining hose (6); the box body inlet (3) is provided with an inlet bottom roller (4) and an inlet top roller (5), the inlet bottom roller (4) is below the inner lining hose (6), the inlet top roller (5) is in a vertical strip-shaped through hole of the box body inlet (3), two ends of the inlet top roller (5) are connected with an inlet roller body adjuster (7), and the inlet roller body adjuster (7) is fixed on the box body (1) at the position of the box body inlet (3).

2. A trenchless pipe photocured soft tube pre-impregnation device according to claim 1, characterized in that: The top of the upper frame body (23) is provided with a hinged seat at both ends, and the hinged seat of the upper frame body (23) is hinged with the bottom end of the tensioning rotating plate (13) respectively, the top end of the tensioning rotating plate (13) is rotatably connected with the end of the tensioning roller (12), and the tensioning roller (12) is located between the inlet upper supporting roller (16) and the inlet frame body guide roller (18) and between the outlet frame body guide roller (28) and the outlet upper supporting roller (29) respectively.

3. A trenchless pipe photocured soft tube pre-impregnation device according to claim 2, characterized in that: A strip-shaped through hole is processed at the middle position of the tensioning rotating plate (13), and the tensioning adjusting rod (14) is slidably connected between the tensioning rotating plates (13) on both sides of the upper frame body (23) through the strip-shaped through hole respectively, the tensioning adjusting rod (14) is connected with the hinged seats at both ends of the tensioning driver (15), and the tensioning driver (15) is connected with the upper frame body (23) through the fixed plate.

4. A pre-impregnation process for a trenchless pipe photocured soft tube pre-impregnation device according to claim 3, characterized in that: The process comprises the following steps: the inner lining hose (6) is guided into the position of the inlet upper supporting roller (16) through the inlet bottom roller (4) and the inlet top roller (5) at the position of the box body inlet (3), is guided to enter into the position of the inlet lower supporting roller (22) through the guiding of the tensioning roller (12) after being tensioned, bypasses the lower side of the inlet lower supporting roller (22) to enter into the lower side of the outlet lower supporting roller (27), and the inlet lower supporting roller (22) and the outlet lower supporting roller (27) are located at the liquid immersion position in the box body (1); the inner lining hose (6) is sent to the inner side of the outlet frame body guide roller (28) above the outlet lower supporting roller (27), and after the inner lining hose (6) on the inner side of the outlet frame body guide roller (28) is contacted with the tensioning roller (12), it is sent to the upper side of the outlet upper supporting roller (29), and is sent out through the outlet rubber scraping plate (10) after passing through the outlet upper supporting roller (29); the liquid immersion height in the box body (1) is maintained through the box body liquid inlet pipe (9) and the liquid outlet pipe (32).

5. An inner liner hose characterized by, The pre-impregnation process of claim 4 is used.

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