A gas bag type pinch-off for a pipe ultraviolet light in-situ curing repair process

Abstract

The utility model provides a gasbag type head binding for pipeline ultraviolet light in situ curing repair technology belongs to pipeline in situ repair technical field. Including the outer head of setting in the both ends of inner lining pipe outer wall, the both ends of inner lining pipe inner wall all insert the inner head corresponding with outer head, one end of two inner head all is equipped with the inflation tube, the inner lining pipe passes through the original pipe inner wall and both ends of inner lining pipe all extend the both ends of original pipe. The utility model discloses through setting sealing assembly, can provide even and stable sealing pressure, can automatically adjust the sealing state according to the actual size of inner lining pipe, ensures that the both ends of inner lining pipe and outer head and inner head realize close adhesion, forms reliable sealing effect, effectively avoids the occurrence of the air leakage problem, guarantees the smooth operation of pipeline ultraviolet light in situ curing repair technology, improves the repair quality, prolongs the service life of pipeline.

Description

Technical Field

[0001] This utility model relates to the field of in-situ pipeline repair, and in particular to an airbag-type clamp for pipeline ultraviolet light in-situ curing repair process. Background Technology

[0002] In the process of in-situ UV curing repair of pipelines, the UV repair material hose, i.e., the inner liner, is usually first passed through the original pipeline. Then, stainless steel ties are manually tied to both ends of the inner liner using cable ties to seal both ends of the inner liner, preparing for the subsequent step of inflating the inner liner with air. The manual tying of the ties requires fixing the cable ties in the grooves on the surface of the stainless steel ties, and then using a lever to repeatedly apply force to adjust until the two ends of the inner liner are firmly secured and sealed to the ties. The whole process involves many manual operations, which is not only time-consuming and labor-intensive, but also the tightness of the cable ties depends on the manual experience, which makes the sealing quality uncontrollable and prone to air leakage. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an airbag-type binding head for pipeline ultraviolet light in-situ curing repair process, so as to solve the problems of time-consuming and labor-intensive manual binding, excessive reliance on manual experience and air leakage caused by uncontrollable sealing quality in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An airbag-type clamp for in-situ UV curing repair of pipelines includes an outer clamp fitted at both ends of the outer wall of an inner liner tube, an inner clamp corresponding to the outer clamp inserted at both ends of the inner wall of the inner liner tube, an inflation tube at one end of each inner clamp, the inner liner tube passing through the inner wall of the original pipe and both ends of the inner liner tube extending out of both ends of the original pipe, a sealing assembly connected to the outer clamp and the inner clamp respectively, and a positioning assembly connected to the inner liner tube and the inner clamp respectively.

[0005] Optionally, the sealing assembly includes two airbags fixed to the surface of the inner head, the inner cavities of the two airbags are connected, the inner wall of the outer head is provided with an abutment groove corresponding to the airbag, the top of the inner head is provided with an air inlet, and an air nozzle is fixed to the top of the air inlet.

[0006] Optionally, a vent pipe is fixed inside the air inlet, and the vent pipe is connected to the air nozzle and one of the air bags.

[0007] Optionally, the inner head has a number of placement slots corresponding to the number of airbags on its surface, and the airbags are fixed in the placement slots.

[0008] Optionally, a connecting hole is provided between the placement slots, and a connecting pipe is fixed in the connecting hole, with the two ends of the connecting pipe respectively connected to the two airbags.

[0009] Optionally, the positioning assembly includes an arc-shaped frame that rotates on the top of the inner tube, a positioning plate fixed to one end of the arc-shaped frame, the positioning plate being in contact with the top end of the inner tube, and an abutment plate fixed to one end of the positioning plate, the abutment plate being in contact with the surface of the inner tube.

[0010] Optionally, the side of the abutment plate closest to the inner liner tube is arc-shaped.

[0011] Optionally, a limiting groove is provided at one end of the arc-shaped frame near the positioning plate, and the inner wall of the limiting groove fits against the outer wall of the air nozzle.

[0012] Optionally, symmetrical protrusions are fixed between the inner walls of the limiting groove, and both protrusions abut against the surface of the air nozzle.

[0013] Optionally, the arc-shaped frame, the positioning plate, the abutment plate, and the protrusion are integrally formed.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects: In the above solution, by setting a sealing component, a uniform and stable sealing pressure can be provided. The sealing state can be automatically adjusted according to the actual size of the inner liner tube, ensuring that the two ends of the inner liner tube are tightly fitted with the outer and inner ties, forming a reliable sealing effect. This effectively avoids air leakage, ensures the smooth progress of the pipeline UV in-situ curing repair process, improves the repair quality, and extends the service life of the pipeline.

[0015] By setting up positioning components, the external and internal ties can be quickly positioned and initially fixed to both ends of the inner lining tube, eliminating the need for cumbersome cable ties and repeated force adjustments as in traditional methods. This effectively shortens the operation time, improves overall construction efficiency, reduces reliance on manual labor, and significantly reduces labor costs.

[0016] By setting up two interconnected airbags, a comprehensive and seamless seal can be formed between the two ends of the inner liner tube and the outer knot, effectively preventing gas leakage. This provides a stable air pressure environment for subsequent inflation of the inner liner tube and UV curing repair processes, which helps ensure repair quality. At the same time, the elasticity of the airbags allows them to adaptively adjust according to the actual size and shape of the inner liner tube and the outer knot, ensuring the reliability of the seal and further reducing the risk of affecting the repair effect due to poor sealing.

[0017] By setting up an arc-shaped frame, positioning plate, and abutment plate, the inner and outer ties can be quickly positioned and initially fixed to fit with the end of the inner liner tube, further reducing the adjustment time and difficulty during installation and thus improving construction efficiency. At the same time, the limiting groove and protrusion on the arc-shaped frame can also limit and protect the air nozzle, keeping the air nozzle in a relatively fixed posture during inflation and deflation, reducing the risk of loosening or damage due to shaking, and improving the stability and reliability of the air nozzle operation. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0019] Figure 1 A three-dimensional structural diagram of the airbag-type zipper used in the ultraviolet in-situ curing repair process for pipelines, in conjunction with the original pipe and the inner lining pipe. Figure 2 A three-dimensional structural diagram showing the inner lining tube in conjunction with the outer and inner ties; Figure 3 A three-dimensional structural diagram showing the cooperation between the arc-shaped frame, the positioning plate, and the abutment plate; Figure 4 A side-section diagram of the airbag, outer tether, inner tether, and inner liner tube in conjunction with the inner tube. Figure 5 A schematic diagram of the side section structure of the inner and outer tether heads in combination; Figure 6 This is a side view diagram of the structure where the outer and inner ties are combined.

[0020] Figure label: 1. Original tube; 2. Inner liner tube; 3. Outer knot; 4. Inner knot; 5. Inflation tube; 6. Arc frame; 7. Limiting groove; 8. Positioning plate; 9. Abutment plate; 10. Protrusion; 11. Placement groove; 12. Airbag; 13. Air inlet; 14. Connection hole; 15. Vent tube; 16. Connecting tube; 17. Air nozzle; 18. Abutment groove.

[0021] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0022] The following is a detailed description of an airbag-type clamp for pipeline ultraviolet in-situ curing repair technology provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0023] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0024] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0025] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0026] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0027] like Figures 1 to 6As shown, an embodiment of this utility model provides an airbag-type clamp for pipeline UV in-situ curing repair process, including an outer clamp 3 fitted onto both ends of the outer wall of an inner liner tube 2, and an inner clamp 4 corresponding to the outer clamp 3 inserted into both ends of the inner wall of the inner liner tube 2. One end of the inner clamp 4 is provided with an inflation tube 5. The inner liner tube 2 passes through the inner wall of the original pipe 1, and both ends of the inner liner tube 2 extend beyond both ends of the original pipe 1. In use, first, one end of the inner liner tube 2 passes through the original pipe 1, and an outer clamp 3 is fitted onto one end of the inner liner tube 2. Then, one end of the inner liner tube 2 is folded over and fitted onto the outer clamp 3, leaving one end of the inner liner tube 2 open. Next, the inner clamp 4 is inserted into the interior of one end of the inner liner tube 2, corresponding to the outer clamp 3. The same steps are repeated at the other end of the inner liner tube 2, aligning the inner clamp 4 with the outer clamp 3. The inflation tube 5 is connected to an external inflation device to prepare for subsequent resealing. A sealing component is used to assist the outer clamp. The outer and inner ties 3 and 4 seal both ends of the inner liner tube 2. The sealing components are connected to the outer tie 3 and inner tie 4 respectively, providing uniform and stable sealing pressure. The sealing state can be automatically adjusted according to the actual size of the inner liner tube 2, ensuring a tight fit between both ends of the inner liner tube 2 and the outer and inner ties 3 and 4, forming a reliable sealing effect. This effectively avoids air leakage, ensures the smooth progress of the pipeline UV in-situ curing repair process, improves repair quality, and extends the service life of the pipeline. The positioning component is used to assist in positioning the outer tie 3 and inner tie 4 when they are used with the inner liner tube 2. The positioning component is connected to the inner liner tube 2 and inner tie 4 respectively, enabling quick positioning and initial fixation of the outer tie 3 and inner tie 4 to both ends of the inner liner tube 2. This effectively shortens the operation time, improves the overall construction efficiency, and reduces reliance on manual labor, thus effectively reducing labor costs.

[0028] like Figures 4 to 6As shown, the sealing assembly includes two air bladders 12 fixed to the outer surface of the inner bladder 4, with their inner cavities communicating with each other. The inner wall of the outer bladder 3 has an abutment groove 18 corresponding to the air bladder 12. The top of the inner bladder 4 has an air inlet 13, and a nozzle 17 is fixed to the top of the air inlet 13. The nozzle 17 is connected to the output end of an external air compressor. When the outer bladder 3 and inner bladder 4 are symmetrically placed at both ends of the inner liner tube 2, the external air compressor is activated to inflate the two air bladders 12. As the air bladders 12 inflate, their outer walls push the inner wall of the inner liner tube 2 closer to the inner wall of the outer bladder 3. Under the abutment action of the abutment groove 18, the outer wall of the inner liner tube 2 is pushed to fit tightly against the groove opening. The uniform expansion force ensures that both ends of the inner liner tube 2 are in contact with the outer bladder 3 and the inner bladder 4. The airbag 12 forms a comprehensive, seamless seal between the inner liner tube 2 and the outer ties 3, effectively preventing gas leakage and providing a stable air pressure environment for subsequent inflation of the inner liner tube 2 and UV curing repair process, which is conducive to ensuring repair quality. At the same time, the elasticity of the airbag 12 allows it to adaptively adjust according to the actual size and shape of the inner liner tube 2 and the outer tie 3, ensuring the reliability of the seal and further reducing the risk of affecting the repair effect due to poor sealing. During operation, the operator only needs to place the outer tie 3 and the inner tie 4 symmetrically and correspondingly at both ends of the inner liner tube 2, and then start the external air compressor to quickly inflate the airbag 12, thereby achieving a seal at both ends of the inner liner tube 2. The whole process is simple and quick, without the need for complicated binding, adjustment and other operations, effectively saving construction time and labor costs and improving construction efficiency.

[0029] like Figure 4 and Figure 5 As shown, a vent pipe 15 is fixed inside the air inlet 13. The vent pipe 15 is connected to the air nozzle 17 and an air bag 12. The vent pipe 15 provides a channel for gas to enter the air bag 12 from the air nozzle 17, avoiding pressure loss caused by poor gas flow in the air inlet 13, so that the air bag 12 can expand quickly and evenly, which helps to shorten the sealing operation time at both ends of the inner liner tube 2.

[0030] like Figure 4 and Figure 5 As shown, the inner head 4 has a number of placement slots 11 corresponding to the number of airbags 12 on its surface. The airbags 12 are fixed in the placement slots 11. The placement slots 11 provide a fixed installation position for the airbags 12, which can effectively limit the airbags 12 and prevent the airbags 12 from shifting or shaking under the action of external force, so as to ensure that the airbags 12 can stably play the role of sealing and pushing the inner liner tube 2.

[0031] like Figure 4 and Figure 5As shown, a connecting hole 14 is provided between the placement slots 11, and a connecting pipe 16 is fixed in the connecting hole 14. The two ends of the connecting pipe 16 are respectively connected to two airbags 12. The connecting hole 14 provides space for the installation of the connecting pipe 16. The connecting pipe 16 serves to connect the two airbags 12, allowing gas to flow freely between the two airbags 12. At the same time, the connecting pipe 16 is located between the two airbags 12, connecting the airbags 12 and limiting the position of the airbags 12, further ensuring the stability of the airbags 12.

[0032] like Figures 1 to 3 and Figure 6 As shown, the positioning assembly includes an arc-shaped frame 6 that rotates on top of the inner tie head 4. A positioning plate 8 is fixed to one end of the arc-shaped frame 6, and the positioning plate 8 is in contact with the top end of the inner liner tube 2. An abutment plate 9 is fixed to one end of the positioning plate 8, and the abutment plate 9 is in contact with the surface of the inner liner tube 2. When the inner tie head 4 is inserted into the inner liner tube 2, the operator can rotate the arc-shaped frame 6 to make the positioning plate 8 and the inner liner tube 2 folded over and in contact with the surface of the outer tie head 3. The abutment plate 9 is then rotated to be in contact with the surface of the inner liner tube 2. This allows for quick positioning and initial fixing of the inner tie head 4 and the outer tie head 3 with the end of the inner liner tube 2, further reducing the adjustment time and difficulty during installation and improving construction efficiency.

[0033] like Figure 3 As shown, the side of the abutment plate 9 closest to the inner liner tube 2 is arc-shaped, which allows the abutment plate 9 to better fit the surface shape of the inner liner tube 2, increasing the contact area with the surface of the inner liner tube 2, which is beneficial to improving the tightness of the fit and also helps to assist in the sealing of the inner liner tube 2.

[0034] like Figure 2 and Figure 3 As shown, a limiting groove 7 is provided at one end of the arc-shaped frame 6 near the positioning plate 8. The inner wall of the limiting groove 7 fits against the outer wall of the air nozzle 17. The limiting groove 7 can limit and protect the air nozzle 17, prevent the air nozzle 17 from deviating when air is introduced, and ensure that the air nozzle 17 can stably perform the functions of inflation and deflation.

[0035] like Figure 2 and Figure 3 As shown, there are symmetrical protrusions 10 fixed between the inner walls of the limiting groove 7. Both protrusions 10 abut against the surface of the air nozzle 17. The protrusions 10 can cooperate with the limiting groove 7 to further limit the position of the air nozzle 17, so that the air nozzle 17 maintains a relatively fixed posture during inflation and deflation, reducing the risk of loosening or damage due to shaking, and improving the stability and reliability of the air nozzle 17.

[0036] like Figure 2 and Figure 3As shown, the arc frame 6, positioning plate 8, abutment plate 9 and protrusion 10 are integrally formed. During the installation process, it is not necessary to install the arc frame 6, positioning plate 8, abutment plate 9 and protrusion 10 separately, nor is it necessary to connect and adjust the components. This effectively simplifies the installation steps and improves the installation efficiency. At the same time, the integral forming process usually adopts the mold injection molding or die casting method, which not only facilitates production and manufacturing, but also helps to reduce manufacturing costs.

[0037] The workflow of the technical solution provided by this utility model is as follows: In use, first pass one end of the inner liner tube 2 through the original tube 1, then place an outer clamp 3 on one end of the inner liner tube 2, and fold one end of the inner liner tube 2 over the outer clamp 3, leaving one end of the inner liner tube 2 open. Next, insert the inner clamp 4 into the interior of one end of the inner liner tube 2, aligning it with the outer clamp 3. Repeat the above steps on the other end of the inner liner tube 2, aligning the inner clamp 4 with the outer clamp 3. Rotate the arc frame 6 until the positioning plate 8 is in contact with the surface of the inner liner tube 2 folded over the outer clamp 3, and the abutment plate 9 is in contact with the surface of the inner liner tube 2 folded over the outer clamp 3, so that the air bladder 12 inside the inner clamp 4 corresponds to the abutment groove 18 inside the outer clamp 3. At this time, the limiting groove 7 and the two protrusions 10 cooperate to limit and protect the air nozzle 17. Connect the air nozzle 17 to the output end of the external air compressor and start the external air compressor. With the air compressor connected by the air inlet pipe 15 and the connecting pipe 16, the two air bags 12 can be quickly filled with air. As the air bags 12 are filled, the outer wall of the air bags 12 pushes the inner wall of the inner liner tube 2 closer to the inner wall of the outer knot 3. Under the action of the abutting groove 18, the outer wall of the inner liner tube 2 is pushed to fit tightly with the groove opening of the abutting groove 18. The uniform expansion force can ensure that the two ends of the inner liner tube 2 form an all-round, seamless seal with the outer knot 3 and the inner knot 4, effectively preventing gas leakage. After the two ends of the inner liner tube 2 are sealed, the external inflation equipment is started, and air is simultaneously injected into the inflation pipes 5 at both ends, so that the outer wall of the inner liner tube 2 expands to fit with the inner wall of the original tube 1, and the subsequent ultraviolet light in-situ curing repair work can be carried out. The ultraviolet light in-situ curing repair process is a prior art and will not be described in detail here.

[0038] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the preferred embodiments; however, those skilled in the art can fully understand this utility model without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pneumatic clamping head for in-situ UV curing repair of pipelines, comprising outer clamping heads fitted onto both ends of the outer wall of an inner liner pipe, characterized in that, Both ends of the inner wall of the inner lining tube are provided with inner ties corresponding to the outer ties. One end of each of the two inner ties is provided with an inflation tube. The inner lining tube passes through the inner wall of the original tube and both ends of the inner lining tube extend out of both ends of the original tube. The sealing assembly is connected to the outer ties and the inner ties respectively. The positioning assembly is connected to the inner lining tube and the inner ties respectively.

2. The airbag-type clamping head for pipeline ultraviolet in-situ curing repair process according to claim 1, characterized in that, The sealing assembly includes two airbags fixed to the surface of the inner head, the inner cavities of the two airbags are connected, the inner wall of the outer head is provided with an abutment groove corresponding to the airbag, the top of the inner head is provided with an air inlet, and an air nozzle is fixed to the top of the air inlet.

3. The airbag-type clamping head for pipeline ultraviolet in-situ curing repair process according to claim 2, characterized in that, An air inlet is fixed inside the air inlet, and the air inlet is connected to the air nozzle and one of the air bags.

4. The airbag-type clamping head for pipeline ultraviolet in-situ curing repair process according to claim 3, characterized in that, The inner head has a number of placement slots corresponding to the number of airbags, and the airbags are fixed in the placement slots.

5. The airbag-type clamping head for pipeline ultraviolet in-situ curing repair process according to claim 4, characterized in that, A connecting hole is provided between the placement slots, and a connecting pipe is fixed in the connecting hole. The two ends of the connecting pipe are respectively connected to the two airbags.

6. The airbag-type clamping head for pipeline ultraviolet in-situ curing repair process according to claim 5, characterized in that, The positioning assembly includes an arc-shaped frame that rotates on the top of the inner tube. A positioning plate is fixed to one end of the arc-shaped frame. The positioning plate is in contact with the top end of the inner tube. An abutment plate is fixed to one end of the positioning plate. The abutment plate is in contact with the surface of the inner tube.

7. The airbag-type clamping head for pipeline ultraviolet in-situ curing repair process according to claim 6, characterized in that, The side of the abutment plate closest to the inner liner tube is arc-shaped.

8. The airbag-type clamping head for pipeline ultraviolet in-situ curing repair process according to claim 7, characterized in that, A limiting groove is provided at one end of the arc-shaped frame near the positioning plate, and the inner wall of the limiting groove is in contact with the outer wall of the air nozzle.

9. The airbag-type clamping head for pipeline ultraviolet in-situ curing repair process according to claim 8, characterized in that, The inner walls of the limiting groove are symmetrically fixed with protrusions, and both protrusions abut against the surface of the air nozzle.

10. The airbag-type clamping head for pipeline ultraviolet in-situ curing repair process according to claim 9, characterized in that, The arc-shaped frame, the positioning plate, the abutment plate, and the protrusion are integrally formed.

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