An ultraviolet light curing device for trenchless pipe rehabilitation

Abstract

This utility model provides a UV curing device for trenchless pipeline repair, comprising: a chain lamp assembly, the front part of which is fixed with a smoothing component for smoothing the repair lining; the chain lamp assembly includes multiple lamp groups connected in series with their heads and tails hinged; the smoothing component includes three movable arms arranged in a ring structure for smoothing the repair lining to make it fit better against the inner wall of the pipeline to be repaired. Compared with the prior art, this utility model has the following advantages: by setting the smoothing component, the elastic steel wool, together with the pressure of the inflated gas, pushes the repair lining towards the inner wall of the pipeline, making it fit better against the inner wall of the pipeline. This solves the problem that relying on manual operation to adjust the inflation pressure or hose position to improve the fit during conventional construction increases the construction difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of ultraviolet curing technology for trenchless pipeline repair, and specifically relates to an ultraviolet curing device for trenchless pipeline repair. Background Technology

[0002] An existing UV curing device for trenchless pipe repair, lacking the function to smooth and tightly adhere the inflated inner lining hose to the inner wall of the pipe to be repaired, is prone to gaps or wrinkles between the repair layer and the pipe's inner wall, thus affecting the repair effect and service life. This problem mainly arises because the device is not equipped with an effective smoothing mechanism, failing to apply uniform pressure to the hose during inflation to conform to the shape of the pipe's inner wall. Consequently, the hose fails to fully adhere to the complex or irregular inner surface of the pipe before curing.

[0003] Conventional solutions typically rely on manual operation during the application process. This involves monitoring the hose's shape using external equipment and manually adjusting the inflation pressure or hose position to improve adhesion. However, this method not only depends on operator experience, increasing the difficulty of application, but also struggles to guarantee consistent repair quality. Therefore, we aim to design a novel UV curing device to address this problem. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an ultraviolet curing device for trenchless pipeline repair, so as to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: a UV curing device for trenchless pipeline repair, comprising: a chain lamp assembly, wherein the front part of the chain lamp assembly is fixed with a smoothing component for smoothing the repair lining, the chain lamp assembly includes multiple lamp groups connected in series with their first and last hinges, and the smoothing component includes three movable arms arranged in a ring structure for smoothing the repair lining to make it fit more closely to the inner wall of the pipeline to be repaired.

[0006] In a preferred embodiment, the lamp assembly includes a main frame, with four protective rods in the middle of the main frame to protect the internal ultraviolet lamp tubes. Three caster arms are arranged in a ring on the front side of the main frame to drive the entire lamp assembly forward. With the support of the three caster arms, the ultraviolet lamp tubes can be stably positioned in the middle of the pipe, thereby stably heating the inner wall of the repair lining.

[0007] In a preferred embodiment, the movable arm includes a fixed base, and a protrusion is provided on the rear side of the fixed base near the lamp assembly for fixing the shock absorber near the fixed base.

[0008] In a preferred embodiment, the end of the fixed base away from the lamp assembly is hinged to a hinge arm, and the hinge arm has a hinge rod in the middle for hinged to the end of the shock absorber away from the fixed base.

[0009] In a preferred embodiment, the end of the hinge arm away from the fixed seat is fixedly connected to the arc plate, and the inner wall of the arc plate is provided with a hinge seat. The inner wall of the arc plate is fixedly connected to the end of the hinge arm away from the fixed seat by bolts through the hinge seat.

[0010] In a preferred embodiment, the outer wall of the arc plate is uniformly provided with elastic bristles, and the width of the elastic bristles in the front-to-back direction is not less than 10 mm.

[0011] As a preferred embodiment, the three arc plates form a complete ring. When the shock absorber is not retracted, the three arc plates will not abut against each other. In actual use, the length of the elastic bristle brush is at least greater than 1 cm. The elastic bristles can undergo elastic deformation upon contact with the repair lining, thereby better fitting the repair lining to the inner wall of the pipe.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are as follows: 1. By setting up a smoothing component, in actual use, when the chain light assembly gradually moves forward in the pipeline, the ultraviolet lamp tubes on its lamp group continuously heat the pre-set and inflated repair lining in the pipeline, thereby making the repair lining fused with the inner wall of the pipeline. When the light chain assembly moves forward, the smoothing component located in front of the light chain assembly will follow. During this process, the elastic steel brush on the arc plate will continuously abut against the inner wall of the repair lining. Because the elastic steel brush undergoes elastic deformation when it encounters resistance, it can push the repair lining against the inner wall of the pipeline. Furthermore, after the first lamp group at the front preheats the repair lining, the elastic steel brush, together with the pressure of the inflated gas, pushes the repair lining against the inner wall of the pipeline, making it fit the inner wall of the pipeline better. This can solve the problem that relying on manual operation to adjust the inflation pressure or hose position to improve the fit during conventional construction increases the difficulty of construction.

[0013] 2. By setting up a hinged arm and a shock absorber, in actual use, since the hinged arm is hinged to the fixed base and fixed with the assistance of the shock absorber, when the hinged arm is subjected to resistance, some of the pressure will be transmitted to the shock absorber. When the pressure on the shock absorber is greater than its own restoring potential energy, it will be compressed, which will cause the hinged arm to fold and move closer to the light assembly. This allows the entire smoothing component to adaptively repair the wrinkles and other structures on the inner wall of the liner, so that the entire light chain component will not be difficult to pull due to excessive resistance when moving forward, and will not jam the repair liner. When pulled, it will drive its movement, ensuring the stability of the repair work and the repair effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of an ultraviolet curing device for trenchless pipeline repair according to this utility model.

[0016] Figure 2 This is a schematic diagram of the connection structure between the lamp assembly and the smoothing component of an ultraviolet curing device for trenchless pipeline repair according to this utility model.

[0017] Figure 3 This is a schematic diagram of the overall structure of the smoothing component of the ultraviolet curing device for trenchless pipeline repair according to this utility model.

[0018] Figure 4 This is a schematic diagram of the movable arm structure of an ultraviolet curing device for trenchless pipeline repair according to this utility model.

[0019] In the diagram, 100 represents the chain light assembly, and 110 represents the light group.

[0020] 200-Smoothing component, 210-Moving arm, 211-Fixed seat, 212-Hinged arm, 213-Shock absorber, 214-Hinged seat, 215-Arc plate, 216-Elastic steel brush. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] As the first embodiment of this utility model:

[0023] Please see Figures 1 to 4 A trenchless ultraviolet curing device for pipeline repair includes: a chain lamp assembly 100, a smoothing component 200 for smoothing the repair lining fixed to the front part of the chain lamp assembly 100, the chain lamp assembly 100 including a plurality of lamp groups 110 connected in series with their first and last hinges, and the smoothing component 200 including three movable arms 210 arranged in a ring structure for smoothing the repair lining to make it fit the inner wall of the pipeline to be repaired more closely.

[0024] The lamp assembly 110 includes a main frame, with four protective bars in the middle of the main frame to protect the internal ultraviolet lamp tube. Three caster arms are arranged in a ring on the front side of the main frame to drive the entire lamp assembly 110 forward. With the support of the three caster arms, the ultraviolet lamp tube can be stably positioned in the middle of the pipe, thereby stably heating the inner wall of the repair lining.

[0025] Specifically, by setting up the smoothing component 200, in actual use, as the chain light component 100 gradually advances in the pipeline, the ultraviolet lamps on its lamp group 110 continuously heat the pre-set and inflated repair lining in the pipeline, thereby causing the repair lining to fuse with the inner wall of the pipeline. When the light chain component advances, the smoothing component 200 located in front of the light chain component will follow. During this process, the elastic steel brush 216 on the arc plate 215 will continuously abut against the inner wall of the repair lining. Because the elastic steel brush 216 undergoes elastic deformation when encountering resistance, it can push the repair lining against the inner wall of the pipeline. After the first lamp group 110 initially heats the repair lining, the elastic steel brush, together with the pressure of the inflated gas, pushes the repair lining against the inner wall of the pipeline, making it fit the inner wall of the pipeline better. This can solve the problem that relying on manual operation to adjust the inflation pressure or hose position to improve the fit during conventional construction increases the difficulty of construction.

[0026] As a second embodiment of this utility model:

[0027] Please see Figures 1 to 4 The movable arm 210 includes a fixed base 211. A protrusion is provided on the rear side of the fixed base 211 near the lamp assembly 110 for fixing the shock absorber 213 near the fixed base 211.

[0028] A hinge arm 212 is hinged to the end of the mounting base 211 away from the lamp assembly 110. A hinge rod is provided in the middle of the hinge arm 212 for hinged to the end of the shock absorber 213 away from the mounting base 211.

[0029] The end of the hinge arm 212 away from the fixed seat 211 is fixedly connected to the arc plate 215. The inner wall of the arc plate 215 is provided with a hinge seat 214. The inner wall of the arc plate 215 is fixedly connected to the end of the hinge arm 212 away from the fixed seat 211 by bolts through the hinge seat 214.

[0030] The outer wall of the arc plate 215 is uniformly provided with elastic rigid bristles, and the width of the elastic rigid bristles in the front-to-back direction is not less than 10mm.

[0031] The three arc plates 215 form a complete ring. When the shock absorber 213 is not retracted, the three arc plates 215 will not abut against each other. In actual use, the length of the elastic bristle brush is at least greater than 1cm. The elastic bristles can undergo elastic deformation when in contact with the repair lining, thus better fitting the repair lining to the inner wall of the pipe.

[0032] Based on the first embodiment described above, further, by setting the hinge arm 212 and the shock absorber 213, in actual use, since the hinge arm 212 is hinged to the fixed seat 211 and fixed with the assistance of the shock absorber 213, when the hinge arm 212 is subjected to resistance, it will transfer some of the pressure to the shock absorber 213. When the pressure on the shock absorber 213 is greater than its own recovery potential energy, it will be compressed, thereby causing the hinge arm 212 to fold and move closer to the lamp assembly 110. This allows the entire smoothing assembly 200 to adaptively repair the wrinkles and other structures on the inner wall of the liner, so that the entire lamp chain assembly will not be difficult to pull due to excessive resistance when moving forward, and will not jam the repair liner. When pulled, it will drive its movement, ensuring the stable progress of the repair work and the repair effect.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A UV curing device for trenchless pipeline repair, comprising: A chain lamp assembly (100) is characterized in that a smoothing component (200) for smoothing the repair lining is fixed on the front side of the chain lamp assembly (100), the chain lamp assembly (100) includes a plurality of lamp groups (110) connected in series with the first and second ends hinged, and the smoothing component (200) includes three movable arms (210) arranged in a ring structure for smoothing the repair lining to make it fit more closely to the inner wall of the pipe to be repaired.

2. The UV curing device for trenchless pipeline repair as described in claim 1, characterized in that: The lamp assembly (110) includes a main frame, with four protective rods in the middle of the main frame to protect the internal ultraviolet lamp tubes, and three caster arms arranged in a ring on the front side of the main frame to drive the entire lamp assembly (110) forward.

3. The ultraviolet curing device for trenchless pipeline repair as described in claim 1, characterized in that: The movable arm (210) includes a fixed base (211), and a protrusion is provided on the rear side of the fixed base (211) near the lamp assembly (110) for fixing the shock absorber (213) near the fixed base (211).

4. The ultraviolet curing device for trenchless pipeline repair as described in claim 3, characterized in that: The fixed base (211) is hinged to a hinge arm (212) at the end away from the lamp group (110), and a hinge rod is provided in the middle of the hinge arm (212) for hinged to the end of the shock absorber (213) away from the fixed base (211).

5. The ultraviolet curing device for trenchless pipeline repair as described in claim 4, characterized in that: The end of the hinge arm (212) away from the fixed seat (211) is fixedly connected to the arc plate (215). The middle inner wall of the arc plate (215) is provided with a hinge seat (214). The inner wall of the arc plate (215) is fixedly connected to the end of the hinge arm (212) away from the fixed seat (211) by bolts through the hinge seat (214).

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