An adjusting structure for ultraviolet light curing pipe repair

Abstract

The application belongs to the technical field of ultraviolet light curing pipeline repair, in particular to an adjusting structure for ultraviolet light curing pipeline repair, which comprises a supporting seat, four slide grooves are arranged in an annular array on the surface of the supporting seat, a supporting leg assembly is rotatably connected in the slide groove and is used for expanding and abutting against the inner wall of the pipeline, a traction rope is connected through the middle part of the supporting seat, the supporting leg assembly comprises a swing arm, the swing arm is hingedly connected to the slide groove through a shaft at one end, and a connecting seat is slidably connected to the other end of the swing arm, the connecting seat and the connecting rod are arranged, when the lining pipeline with variable diameter is adapted, the connecting rod at the bottom of the connecting seat will slide in the movable cavity, the gap between the connecting seat and the end of the swing arm can be adjusted, so that the lining pipeline with different inner diameters can be adapted without changing the deflection angle of the swing arm, the lining pipeline with variable diameter can be adapted, and the position of the ultraviolet lamp tube will not change, which will not affect the curing effect of the ultraviolet lamp tube on the lining pipeline.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of ultraviolet light curing pipeline repair, in particular to an adjusting structure for ultraviolet light curing pipeline repair. BACKGROUND

[0002] The drainage pipeline modification method includes two ways of excavation rearrangement and trenchless repair. For the problems existing in the underground pipeline, the simplest and most direct method is excavation rearrangement, but due to the adverse factors such as affecting traffic, increasing social cost, long construction period, etc., the most widely used at present is still the trenchless repair technology.

[0003] The trenchless repair technology includes ultraviolet light curing repair, trenchless spiral winding repair and hot inversion type CIPP repair methods. Among them, the ultraviolet light curing repair is an advanced technology internationally. The emergence of ultraviolet in-situ curing repair technology greatly reduces the social cost of the entire drainage pipeline repair. The use of intelligent repair robots to repair the pipeline can achieve no excavation of earthwork, no dust emission, no noise pollution, fast repair speed, and is of great significance to the protection of ecological environment and the control of the formation of haze.

[0004] In the ultraviolet light curing repair technology, the factors that affect the repair effect are the irradiation position of the ultraviolet light carried by the repair robot and the contact force of the supporting leg to the pipe wall. In order to improve the repair effect of ultraviolet light curing, some solutions to the above factors are also proposed in the prior art:

[0005] For example, the patent number CN109899619A proposes a stepless gear shifting type position adjusting system and method suitable for supporting leg mechanism, which includes a lamp holder frame body, a supporting leg mechanism, a position adjusting limiting device, a supporting leg driving motor and an electric control system. The supporting leg driving motor is started or reversed by the electric control system, the supporting leg is opened or contracted, and when the opening angle of the supporting leg reaches the maximum angle limited by the position adjusting limiting device, the adjusting limiting device sends a stop signal to the electric control system. When the contraction angle of the supporting leg reaches the minimum angle limited by the position adjusting limiting device, the adjusting limiting device sends a stop signal to the electric control system. After the electric control system receives the stop signal, the supporting leg driving motor is controlled to stop rotating.

[0006] For the above patent, its content includes a lamp holder, a supporting leg, realizes the adjustment of the opening angle of the supporting leg and the control of the contact force of the supporting leg with the inner lining pipeline, and also realizes the adjustment of the position of the lamp holder, but based on the effect required to be realized in the above scheme, a relatively complex electric control system is required, and the required driving source is also relatively more, in addition to being easy to damage and having high maintenance cost, the effect of reducing the weight and size of the repair robot is not obvious, secondly, when suitable for different pipelines, such as variable-diameter pipelines, the supporting legs at both ends of the robot need to be independently adjusted in angle through electric signals, which will cause the position of the lamp holder associated with the movement of the supporting leg to change, thereby changing the curing effect on the inner lining pipeline.

[0007] Therefore, the application provides an adjusting structure for ultraviolet light curing pipeline repair. SUMMARY

[0008] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0009] The technical scheme adopted by the application to solve the technical problems is: the adjusting structure for ultraviolet light curing pipeline repair comprises a supporting seat, four sliding grooves are arranged in an annular array on the surface of the supporting seat, a supporting leg assembly is rotatably connected in the sliding groove, and the supporting leg assembly is used to expand and abut against the inner wall of the pipeline; a traction rope is connected through the middle part of the supporting seat; the supporting leg assembly comprises a swing arm, one end of the swing arm is hingedly connected to the sliding groove, the other end of the swing arm is slidably connected to a connecting seat, a connecting rod is fixedly connected to one end of the connecting seat facing the swing arm, and the connecting rod is in sliding fit with the end of the swing arm; a ball is rollingly connected to the other end of the connecting seat; a fixing frame is arranged between two parallel and adjacent supporting leg assemblies, an ultraviolet lamp is mounted on the fixing frame, and the ultraviolet lamp is used to cure the pipeline.

[0010] Preferably, a through hole is arranged on the supporting seat in parallel to the sliding groove in the radial direction, and a bidirectional screw rod is rotatably connected in the through hole; ball nut seats are threadedly connected to both ends of the bidirectional screw rod corresponding to the swing arm; the ball nut seats are hingedly connected to the swing arm through first connecting arms.

[0011] Preferably, an active cavity is formed in one end of the swing arm close to the connecting seat, and the connecting rod is slidably connected in the active cavity; a first spring is sleeved on the connecting rod, and the first spring is used to provide buffering for the extension and retraction action of the connecting rod; a pressure sensor is mounted on the connecting seat; the pressure sensor is electrically connected to a cable, and the cable extends to the outside of the swing arm through the swing arm.

[0012] Preferably, a limiting plate parallel to the swing arm is fixed to the surface of one end of the swing arm close to the connecting seat; a limiting rod arranged vertically is fixed to one side of the connecting seat relative to the limiting plate; a stop plate is further fixed to the end of the limiting rod away from the connecting seat; the limiting rod is penetrated into the waist round groove on the limiting plate; a second spring is sleeved on the limiting rod, and the two ends of the second spring are fixed to the limiting plate and the stop plate respectively.

[0013] Preferably, a second connecting arm is hingedly connected to one side of the swing arm corresponding to the fixed frame; the second connecting arm and the first connecting arm are respectively located on two sides of the swing arm; the fixed frame is hingedly connected between the two symmetrical second connecting arms.

[0014] Preferably, the fixed frame is arranged in a U-shaped structure; two inflection points on the fixed frame are provided with a corner end, and a limiting roller is fixed to the corner end; a screw rod is fixed to the bottom of the limiting roller, and the screw rod is penetrated through the fixed frame and fixed by a nut.

[0015] Preferably, the middle part of the support seat is connected with a connecting module; the connecting module comprises a first fixed plate and a second fixed plate; the outer edges of the first fixed block and the second fixed block are fixed with a fitting plate, and the first fixed block and the second fixed block are connected with the support seats on both sides through the fitting plate; an installation groove is formed in the inside of the first fixed block and the second fixed block, and a driving assembly is arranged in the installation groove, and the driving assembly is used for driving the bidirectional screw rod to rotate.

[0016] Preferably, the driving assembly comprises a first gear, a second gear and a servo motor; the first gear is fixed on the bidirectional screw rod, and the first gear is located in the installation groove; the second gear is fixed on the center sleeve of the installation groove of the first fixed plate, and a traction rope is penetrated in the center sleeve; the second gear is engaged with the four first gears; the output end of the servo motor is fixed with a driving gear, and the driving gear is engaged with the second gear.

[0017] Preferably, a plurality of foot assemblies are arranged in a circular array at the end of the support seat; the foot assemblies on the two support seats are mirror-symmetrical, and the corresponding foot assemblies on the two support seats are arranged in parallel.

[0018] Preferably, the bidirectional screw rod is penetrated in the connecting module, and is rotationally connected with the connecting module seat.

[0019] The beneficial effects of the present application are as follows:

[0020] 1. The adjusting structure for ultraviolet light curing pipeline repair, through the setting connecting seat and connecting rod, when adapting to the variable diameter inner lining pipeline, the connecting rod at the bottom of the connecting seat will slide in the movable cavity, so that the gap between the connecting seat and the end of the swing arm can be adjusted, so that different inner diameters of the inner lining pipeline can be adapted without changing the deflection angle of the swing arm, and the position of the ultraviolet lamp tube will not change, which will not affect the curing effect of the ultraviolet lamp tube on the inner lining pipeline.

[0021] 2. The adjusting structure for ultraviolet light curing pipeline repair, by setting the limiting plate on the swing arm, using the second spring between the stop plate and the limiting plate, a counteracting force is generated on the connecting rod, so that the vertical force on the connecting seat is only the parallel component force of the swing arm, and then the extension and contraction of the connecting seat and the swing arm can be realized, so that when adapting to the variable diameter pipeline, the extension and contraction of the connecting seat and the end of the swing arm can be adapted, and by eliminating the vertical force on the swing arm, the connecting seat will not excessively grind the end of the swing arm when extending and contracting, which will not cause serious wear of the end of the swing arm, and even the end of the swing arm will be scrapped and replaced after a period of time. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described below with reference to the drawings.

[0023] Figure 1 is a perspective view of the first embodiment of the application;

[0024] Figure 2 is a partial perspective view of the first embodiment of the application;

[0025] Figure 3 is a partial exploded perspective view of the first embodiment of the application;

[0026] Figure 4 is a perspective view of the cooperation of the foot assembly and the fixing frame in the first embodiment of the application;

[0027] Figure 5 is a perspective view of the foot assembly in the first embodiment of the application;

[0028] Figure 6 is a partial perspective view of the foot assembly in the first embodiment of the application;

[0029] Figure 7 is a perspective view of the cooperation of the fixing frame and the second swing arm in the first embodiment of the application;

[0030] Figure 8 is a perspective view of the cooperation of the third spring and the swing arm in the second embodiment of the application;

[0031] In the figure: 1, support seat; 11, sliding groove; 12, bidirectional screw rod; 13, ball nut seat; 14, first connecting arm; 2, traction rope; 31, swing arm; 311, movable cavity; 32, connecting seat; 321, connecting rod; 322, first spring; 33, limiting plate; 34, limiting rod; 341, second spring; 35, ball; 36, second connecting arm; 37, fixing frame; 38, limiting roller; 381, screw rod; 39, electric cable; 4, connecting module; 41, first fixed plate; 42, second fixed plate; 43, engagement plate; 44, mounting groove; 45, first gear; 46, second gear; 47, servo motor; 5, ultraviolet lamp tube; 6, third spring. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0033] Embodiment one

[0034] As Figures 1-2As shown in the embodiment of the present invention, an adjustment structure for ultraviolet curing pipe repair includes a support base 1; four sliding grooves 11 are arranged in a circular array on the surface of the support base 1; a support leg assembly is rotatably connected in the sliding groove 11, and the support leg assembly is used to expand and press against the inner wall of the pipe; a traction rope 2 is connected through the middle of the support base 1; the support leg assembly includes a swing arm 31; one end of the swing arm 31 is hinged to the sliding groove 11 via a shaft, and the other end of the swing arm 31 is slidably connected to a connecting seat 32; the connecting... A connecting rod 321 is fixedly connected to one end of the connecting seat 32 facing the swing arm 31, and the connecting rod 321 slides with the end of the swing arm 31; a ball bearing 35 is rotatably connected to the other end of the connecting seat 32; a fixing frame 37 is provided between two parallel and adjacent support leg assemblies, and an ultraviolet lamp 5 is installed on the fixing frame 37, the ultraviolet lamp 5 being used to cure the pipe; the support seat 1 supports the support leg assembly, and after the device is placed in the inner lining pipe, the support leg assembly is expanded by driving the support leg assembly to the ball bearing 35. The device is adjusted to fit the inner wall of the lining pipe. Then, a traction rope 2 is used to smoothly move the device within the lining pipe. The lining pipe is cured by ultraviolet lamps 5. During the expansion of the swing arm 31, the fixing frame 37 between the two parallel and adjacent support components rises, causing the ultraviolet lamp to move from being close to the support base 1 to being closer to the lining pipe. By changing the position of the ultraviolet lamp 5, the curing effect on the lining pipe is improved. Furthermore, when adapting to lining pipes with varying diameters, the connecting seat 32 and the end of the swing arm 31 are slidably connected via a connecting rod 321. Therefore, when adapting to lining pipes changing from a large inner diameter to a small inner diameter, the connecting seat 32 on one end of the support base 1 can extend and retract to accommodate the changing inner diameter. The extension and retraction between the connecting seat 32 and the support base 1 does not change the position of the ultraviolet lamp 5, maintaining the distance between it and the lining pipe, thus ensuring the curing effect is not reduced.

[0035] like Figures 2-3 As shown, a through hole is provided on the support base 1 in the radial direction parallel to the slide groove 11, and a bidirectional lead screw 12 is rotatably connected in the through hole; the two ends of the bidirectional lead screw 12 are threadedly connected to ball nut seats 13 corresponding to the swing arms 31; the ball nut seats 13 are hinged to the swing arms 31 via the first connecting arm 14; the bidirectional lead screw 12 is used to connect two parallel and adjacent ball nut seats 13, and through the first connecting arm 14, it drives the two parallel and adjacent swing arms 31. When one bidirectional lead screw 12 rotates, it can drive the two parallel and adjacent swing arms 31 to deflect, so that they are adjusted from being parallel to the support base 1 to forming an angle with the support base 1, that is, to expand, so that the balls 35 on the connecting seat 32 fit with the inner lining pipe, thereby supporting the device in the inner lining pipe. As the traction rope 2 moves, it can drive the device to move in the inner lining pipe to achieve the curing effect.

[0036] As Figure 6 shown, the swing arm 31 is provided with a movable cavity 311 near one end of the connecting seat 32, and a connecting rod 321 is slidingly connected in the movable cavity 311; the connecting rod 321 is sleeved with a first spring 322, and the first spring 322 is used to provide buffering for the extension and retraction action of the connecting rod 321; the connecting seat 32 is provided with a pressure sensor; the pressure sensor is electrically connected with a cable 39, and the cable 39 extends through the swing arm 31 to the outside of the swing arm 31; specifically, when adapting to the variable-diameter inner lining pipe, the connecting rod 321 at the bottom of the connecting seat 32 will slide in the movable cavity 311, so that the gap between the connecting seat 32 and the end of the swing arm 31 can be adjusted, so that different inner diameters of the inner lining pipe can be adapted without changing the deflection angle of the swing arm 31, and the variable-diameter inner lining pipe can be adapted, and the position of the ultraviolet lamp tube 5 will not change. Specifically, in order to avoid that the pressure of the ball 35 on the inner lining pipe is too large, causing indentation on the inner lining pipe and affecting the service life of the inner lining pipe after curing, before the inner lining pipe is laid, the pressure Fm that the inner lining pipe can bear without deformation is measured by testing; after the swing arm 31 is deflected, the connecting rod 321 will move downward when the ball 35 contacts the inner lining pipe, and after the ball 35 gives the inner lining pipe a pressure Fn, a corresponding counterforce corresponding to Fn is generated on the connecting seat 32, the pressure sensor and the cable 39 are used to transmit the counterforce Fn and compare it with the pressure Fm; when Fn is less than Fm, it indicates that the ball 35 has not caused indentation on the inner lining pipe at this time; when Fn is greater than or equal to Fm, it indicates that the contact force of the ball 35 on the inner lining pipe is too large, triggering an alarm, and the expansion angle of the swing arm 31 needs to be adjusted back, to avoid that the ball 35 causes indentation on the inner lining pipe. By pressure judgment, the expansion angle of the swing arm 31 and the support seat 1 is controlled, and when adapting to the variable-diameter inner lining pipe, since the ball 35, the connecting seat 32 and the inner lining pipe do not generate a large pressure and abut, there is still a certain extension and retraction range between the connecting seat 32 and the swing arm 31, which can be used to adapt to the variable-diameter inner lining pipe, and the deflection angle of the swing arm 31 is avoided from being adjusted multiple times.

[0037] As Figures 5-6As shown, the end surface of the swing arm 31 close to the connecting seat 32 is fixed with a limiting plate 33 parallel to the swing arm 31; the side of the connecting seat 32 opposite to the limiting plate 33 is fixed with a limiting rod 34 arranged vertically; the end of the limiting rod 34 away from the connecting seat 32 is also fixed with a stop plate; the limiting rod 34 penetrates into the waist circular groove on the limiting plate 33; the limiting rod 34 is sleeved with a second spring 341, and the two ends of the second spring 341 are fixed on the limiting plate 33 and the stop plate respectively; because the swing arm 31 and the inner lining pipeline are arranged obliquely, the pressure on the inner lining pipeline by the ball 35 will give the connecting seat 32 an opposite force, which is vertically downward, and the future eliminating the vertical component force of the connecting seat 32 on the swing arm 31, the limiting plate 33 is arranged on the swing arm 31, and the second spring 341 between the stop plate and the limiting plate 33 generates a force to offset the component force, so that the vertical force on the connecting seat 32 is only the component force parallel to the swing arm 31, and then the expansion and contraction of the connecting seat 32 and the swing arm 31 can be realized, so that when the pipeline is adapted to the variable diameter, the expansion and contraction of the end of the connecting seat 32 and the swing arm 31 can be adapted, and by eliminating the vertical force on the swing arm 31, the connecting seat 32 will not excessively grind the end of the swing arm 31 during expansion and contraction, which will not cause serious wear of the end of the swing arm 31, and even the end of the swing arm 31 will be scrapped and replaced after a period of time.

[0038] As shown in Figure 4 , the swing arm 31 is hingedly connected with a second connecting arm 36 corresponding to one side of the fixed frame 37; the second connecting arm 36 and the first connecting arm 14 are respectively located on the two sides of the swing arm 31; the symmetrical two second connecting arms 36 are hingedly connected with the fixed frame 37; by hingedly connecting the second connecting arm 36 with the swing arm 31, the fixed frame 37 hingedly connected between the two second connecting arms 36 can be lifted during the deflection and expansion of the swing arm 31, so as to carry the ultraviolet lamp tube 5 to rise, so that the ultraviolet lamp tube 5 is closer to the inner lining pipeline, and a more effective curing effect is provided.

[0039] As shown in Figure 7 , the fixed frame 37 is arranged in a U-shaped structure; two inflection points on the fixed frame 37 are provided with angle ends, and the angle ends are fixed with limiting rollers 38; the bottom of the limiting roller 38 is fixed with a screw rod 381, and the screw rod 381 penetrates through the fixed frame 37 and is fixed by a nut; the limiting roller 38 is arranged at the corner of the fixed frame 37, and the distance between the limiting roller 38 and the inner wall of the inner lining pipeline is less than that of the ultraviolet lamp tube 5 during the lifting of the fixed frame 37, which can prevent the ultraviolet lamp tube 5 from being too close to the inner lining pipeline, so that a certain gap is left between the ultraviolet lamp tube 5 and the inner lining pipeline for light diffusion, thereby improving the range of ultraviolet light curing.

[0040] As shown in Figure 3As shown, the middle part of the support base 1 is connected with a connecting module 4; the connecting module 4 comprises a first fixed plate 41 and a second fixed plate 42; the outer edges of the first fixed block and the second fixed block are fixedly connected with a fitting plate 43, and the first fixed block and the second fixed block are connected with the support bases 1 on both sides through the fitting plate 43; the first fixed block and the second fixed block are internally provided with mounting grooves 44, and the mounting grooves 44 are provided with a driving assembly for driving the bidirectional screw rod 12 to rotate; the connecting module 4 is connected with the support bases 1 on both sides through the fitting plate 43, and the driving assembly is arranged in the connecting module 4, so that the bidirectional screw rod 12 can be controlled to rotate, thereby achieving the purpose of driving the swing arm 31 to expand and deflect.

[0041] As shown in Figure 3 The driving assembly comprises a first gear 45, a second gear 46 and a servo motor 47; the first gear 45 is fixedly connected to the bidirectional screw rod 12 and located in the mounting groove 44; the second gear 46 is fixedly connected to the center sleeve of the mounting groove 44 of the first fixed plate 41, and the traction rope 2 penetrates through the center sleeve; the second gear 46 is engaged with the four first gears 45; the output end of the servo motor 47 is fixedly connected with a driving gear, and the driving gear is engaged with the second gear 46; after the servo motor 47 is started, the driving gear can be driven to rotate, the driving gear is engaged with the second gear 46, so that the second gear 46 can rotate on the center sleeve, and the second gear 46 is engaged with the four first gears 45 on the periphery, so that the first gears 45 can be driven to rotate, thereby driving the plurality of bidirectional screw rods 12 to rotate respectively, and achieving the expansion effect of the plurality of swing arms 31, wherein the driving gear and the first gear 45 are arranged in parallel.

[0042] As shown in Figures 1-2 The foot assemblies are arranged in a circular array at the ends of the support base 1; the foot assemblies on the two support bases 1 are mirror-symmetric, and the corresponding foot assemblies on the two support bases 1 are arranged in parallel.

[0043] As shown in Figures 1-3 The bidirectional screw rod 12 penetrates through the connecting module and is rotationally connected with the connecting module seat.

[0044] Embodiment two

[0045] As shown in Figure 8 In order to make the second swing arm 31 more easily expand, thereby driving the fixed frame 37 to rise, compared with embodiment one, another embodiment of the present application is that a third spring 6 is fixedly connected between the second connecting arm 36 and the swing arm 31; through the third spring 6 between the second connecting arm 36 and the swing arm 31, the elastic potential can be used to promote the second connecting arm 36 to expand quickly, thereby driving the ultraviolet lamp tube 5 to rise.

[0046] Working principle: due to the prior art for pipeline repair robot, the need to use more complex electric control system, and the required drive source is also relatively more, in addition to easy to damage and high maintenance cost, the effect of reducing the weight and size of the repair robot is not obvious, secondly, suitable for different pipe, such as variable diameter pipe, the robot both ends of the support leg need to be adjusted by the angle of the electric signal independently, at this time will cause the change of the lamp holder position associated with the support leg movement, and then change the curing effect of the inner lining pipe.

[0047] The device in use, the support seat 1 is used for supporting the support leg assembly, after placing the equipment in the inner lining pipe, the support leg assembly is driven to expand to the ball 35 and the inner wall of the inner lining pipe, the adaptability of the equipment is adjusted, then the traction rope 2 is used to drive the equipment to move smoothly in the inner lining pipe, and the ultraviolet lamp 5 is used for curing the inner lining pipe, wherein in the expansion process of the swing arm 31, the fixed frame 37 between the two support leg assemblies arranged in parallel and adjacent is lifted, and then the ultraviolet lamp is changed from close to the support seat 1 to close to the inner lining pipe, by changing the position of the ultraviolet lamp 5, the curing effect of the inner lining pipe can be improved, at the same time, when adapting to the variable diameter inner lining pipe, because the connecting seat 32 and the end of the swing arm 31 are connected through the connecting rod 321, when adapting to the inner lining pipe with large inner diameter to small inner diameter, the connecting seat 32 on the support leg assembly at one end of the support seat 1 can be extended and retracted to adapt to the inner lining pipe with variable inner diameter, and the extension and retraction between the connecting seat 32 and the support seat 1 will not change the position of the ultraviolet lamp 5, which can keep the distance between the ultraviolet lamp 5 and the inner lining pipe unchanged, so the curing effect will not be reduced;

[0048] In the case of adapting to the variable diameter of the inner lining pipe, the connecting rod 321 at the bottom of the connecting seat 32 will slide in the movable cavity 311, so that the gap between the connecting seat 32 and the end of the swing arm 31 can be adjusted, so as to adapt to the inner lining pipe with different diameters without changing the deflection angle of the swing arm 31, and the position of the ultraviolet lamp tube 5 will not change. Specifically, in order to avoid that the pressure of the ball 35 on the inner lining pipe is too large to cause indentation on the inner lining pipe and affect the service life of the inner lining pipe after curing, before the inner lining pipe is laid, the pressure Fm that the inner lining pipe can bear without deformation is measured by testing; after the swing arm 31 is deflected, the connecting rod 321 will move downward when the ball 35 contacts the inner lining pipe, and after the ball 35 gives the inner lining pipe a pressure Fn, a corresponding counterforce corresponding to Fn is generated on the connecting seat 32, and the pressure sensor and the cable 39 are used to transmit the counterforce Fn and compare it with the pressure Fm; when Fn is less than Fm, it indicates that the ball 35 does not cause indentation on the inner lining pipe at this time; when Fn is greater than or equal to Fm, it indicates that the contact force of the ball 35 on the inner lining pipe is too large, so the expansion angle of the swing arm 31 needs to be adjusted back to avoid that the ball 35 causes indentation on the inner lining pipe. By pressure judgment, the expansion angle of the swing arm 31 and the support seat 1 is controlled, and at the same time, in the case of adapting to the variable diameter of the inner lining pipe, since the ball 35, the connecting seat 32 and the inner lining pipe do not generate a large pressure and abut, there is still a certain telescopic movement range between the connecting seat 32 and the swing arm 31, which can be used to adapt to the variable diameter of the inner lining pipe and avoid adjusting the deflection angle of the swing arm 31 multiple times. Since the swing arm 31 and the inner lining pipe are arranged obliquely, the pressure acting on the inner lining pipe by the ball 35 will correspondingly give the connecting seat 32 an opposite force, which is vertically downward. In the future, the vertical component of this vertical force, which is perpendicular to the swing arm 31, is eliminated, and the limiting plate 33 is arranged on the swing arm 31. By using the second spring 341 between the abutting plate and the limiting plate 33, an action force that offsets the component is generated on the connecting rod 321, so that the vertical force on the connecting seat 32 only has a component parallel to the swing arm 31, and then the telescopic movement of the connecting seat 32 and the swing arm 31 can be realized. In this way, when adapting to the variable diameter pipe, the telescopic movement of the end of the connecting seat 32 and the swing arm 31 can be adapted, and by eliminating the vertical force on the swing arm 31, the connecting seat 32 will not excessively grind the end of the swing arm 31 when telescoping, which will not cause serious wear of the end of the swing arm 31, and even the end of the swing arm 31 will be scrapped and replaced after a period of time.

[0049] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An adjustment structure for ultraviolet light curing pipe repair, characterized in that: The system includes a support base (1); four grooves (11) are arranged in a ring array on the surface of the support base (1); a foot assembly is rotatably connected in the groove (11), and the foot assembly is used to expand and press against the inner wall of the pipe; a traction rope (2) is connected through the middle of the support base (1); the foot assembly includes a swing arm (31); one end of the swing arm (31) is hinged to the groove (11) via a shaft, and the other end of the swing arm (31) is slidably connected to a connecting seat (32); a connecting rod (321) is fixedly connected to one end of the connecting seat (32) facing the swing arm (31), and the connecting rod (321) is slidably engaged with the end of the swing arm (31); a ball bearing (35) is rolledly connected to the other end of the connecting seat (32); a fixing frame (37) is provided between two parallel and adjacent foot assemblies, and an ultraviolet lamp (5) is installed on the fixing frame (37), the ultraviolet lamp (5) is used to cure the pipe; The support base (1) is provided with a through hole in the radial direction parallel to the slide groove (11), and a two-way screw (12) is rotatably connected in the through hole; the two ends of the two-way screw (12) are threadedly connected to the rocker arm (31) with ball nut seats (13); the ball nut seats (13) are hinged to the rocker arm (31) via the first connecting arm (14); A movable cavity (311) is provided at one end of the swing arm (31) near the connecting seat (32), and a connecting rod (321) is slidably connected in the movable cavity (311); a first spring (322) is sleeved on the connecting rod (321), and the first spring (322) is used to provide buffer for the extension and retraction of the connecting rod (321); a pressure sensor is installed on the connecting seat (32); the pressure sensor is electrically connected to a cable (39), and the cable (39) extends through the swing arm (31) to the outside of the swing arm (31); A limiting plate (33) parallel to the swing arm (31) is fixedly connected to one end surface of the swing arm (31) near the connecting seat (32); a vertically arranged limiting rod (34) is fixedly connected to one side of the connecting seat (32) opposite to the limiting plate (33); a stop plate is also fixedly connected to one end of the limiting rod (34) away from the connecting seat (32); the limiting rod (34) passes through the oval groove on the limiting plate (33); a second spring (341) is sleeved on the limiting rod (34), and the two ends of the second spring (341) are respectively fixed to the limiting plate (33) and the stop plate.

2. The adjustment structure for ultraviolet light curing pipe repair according to claim 1, characterized in that: A second connecting arm (36) is hinged to one side of the swing arm (31) corresponding to the fixed frame (37) via a shaft; the second connecting arm (36) and the first connecting arm (14) are located on both sides of the swing arm (31); the fixed frame (37) is hinged between the two symmetrical second connecting arms (36).

3. The adjustment structure for ultraviolet light curing pipe repair according to claim 2, characterized in that: The fixing frame (37) is U-shaped; the two corners on the fixing frame (37) are provided with bend ends, and the bend ends are fixed with limit rollers (38); the bottom of the limit rollers (38) is fixed with screws (381), and the screws (381) pass through the fixing frame (37) and are fixed with nuts.

4. The adjustment structure for ultraviolet light curing pipe repair according to claim 3, characterized in that: A connecting module (4) is fitted to the middle of the support base (1); the connecting module (4) includes a first fixing plate (41) and a second fixing plate (42); a fitting plate (43) is fixed to the outer edge of the first fixing plate (41) and the second fixing plate (42), and the first fixing plate (41) and the second fixing plate (42) are fitted to the support base (1) on both sides through the fitting plate (43); the first fixing plate (41) and the second fixing plate (42) are provided with mounting grooves (44), and a driving component is provided in the mounting grooves (44), which is used to drive the bidirectional lead screw (12) to rotate.

5. The adjustment structure for ultraviolet light curing pipe repair according to claim 4, characterized in that: The drive assembly includes a first gear (45), a second gear (46), and a servo motor (47); the first gear (45) is fixedly connected to a bidirectional lead screw (12) and is located in a mounting groove (44); the second gear (46) is fixedly connected to the center sleeve of the mounting groove (44) on the first fixed plate (41), and the traction rope (2) passes through the center sleeve; the second gear (46) meshes with four first gears (45); the output end of the servo motor (47) is fixedly connected to a drive gear, and the drive gear meshes with the second gear (46).

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