An inflatable device for repairing municipal pipelines

Abstract

The present application relates to an inflatable device for municipal pipeline repair, which belongs to the technical field of pipeline repair, and includes an airbag and a compressor for inflating the airbag. A ventilation structure is connected between the compressor and the airbag, and the ventilation structure includes an air exchange box and a piston member located in the air exchange box. The piston member includes a piston rod slidably connected to the air exchange box and a piston head fixedly connected to the piston rod. The inflatable device for municipal pipeline repair is used for inflation by arranging the airbag and the compressor to be connected to each other, and a three-way valve structure is arranged in the air exchange box to cooperate with the compressor. By replacing the air inlet and the exhaust port of the compressor to be connected to the air nozzle, the inflation and deflating of the airbag can be quickly switched. After switching, the airbag is deflated quickly by the active deflating of the compressor and the self-deflation of the airbag, which improves the evacuation efficiency after the construction is completed and improves the practicality of the device.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline repair, and in particular to an inflation device for municipal pipeline repair. Background Art

[0002] Municipal pipeline repair refers to the maintenance and renovation of the pipeline system in the city to ensure its normal operation and safety. After completing the inspection and evaluation of the municipal pipeline, the pipeline is sealed through the inflation device and an effective construction working environment is provided.

[0003] The cam is provided with a plurality of connecting rods and a plurality of connecting rods, and the connecting rods are connected to the plurality of connecting rods respectively.

[0004] The above patent achieves the blocking of the pipeline by setting an inflation device to cooperate with the airbag, but under the conventional configuration, the inflation is carried out by connecting the air pump and the airbag. After the construction is completed, since municipal pipelines usually use large-diameter pipelines, the diameter of the airbag filled and blocked is also large. The efficiency of self-deflation of the airbag is low, which is easy to waste a lot of time. Therefore, an inflation device for municipal pipeline repair is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present application provides an inflation device for municipal pipeline repair, which has the advantages of easy inflation and deflation replacement and improved utilization efficiency.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an inflation device for municipal pipeline repair, comprising an air bag and a compressor for inflating the air bag, wherein a ventilation structure is connected between the compressor and the air bag;

[0007] The ventilation structure includes a ventilation box and a piston member located in the ventilation box, the piston member includes a piston rod slidably connected to the ventilation box and a piston head fixedly connected to the piston rod, and the piston head is slidably connected to the flow channel.

[0008] Furthermore, a balancing port and a connecting port are respectively provided at both ends of the ventilation box, and connecting valve pipes are fixedly installed on the air inlet and air outlet of the compressor, and the connecting valve pipes correspond to the connecting ports.

[0009] Furthermore, a flow channel is provided in the ventilation box, and the balance port and the connection port are both connected to the flow channel.

[0010] Furthermore, the balancing port includes three, wherein the balancing port in the middle is connected to an air nozzle, and the air nozzle is connected to the airbag.

[0011] Furthermore, there are two connecting ports, corresponding to the two connecting valve pipes respectively, and there are three piston heads, and the spacing between the three piston heads corresponds to the spacing between the three balancing ports.

[0012] Furthermore, a limit block is fixedly mounted on one end of the piston rod extending outside the ventilation box, and the limit blocks include two.

[0013] Furthermore, the piston head and the flow channel corresponding to the piston head are both rectangular.

[0014] Furthermore, a stabilizing plate is fixedly mounted on the bottom of the compressor, a bracket is fixedly mounted on the stabilizing plate, and the connecting valve pipe and the ventilation box are fixedly connected to the stabilizing plate via the bracket.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The inflation device for municipal pipeline repair is provided with an air bag and a compressor connected to each other for inflation, and a three-way valve structure is provided in the ventilation box to cooperate with the compressor. The air inlet and the exhaust port of the compressor are connected to the air nozzle to realize rapid switching of the inflation and deflating of the air bag. After the switching, the air bag is deflated quickly through the active deflating of the compressor and the self-deflation of the air bag, thereby improving the evacuation efficiency after the construction is completed and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of this application;

[0018] Figure 2 This is a schematic diagram of an implementation structure of the ventilation box of this application;

[0019] Figure 3 This is another schematic diagram of the structure of the ventilation box of this application;

[0020] Figure 4 It is a three-dimensional diagram of the structure of the piston head.

[0021] In the figure: 1. air bag; 2. stabilizing plate; 3. compressor; 4. connecting valve pipe; 5. bracket; 6. ventilation box; 7. flow channel; 8. balancing port; 9. air nozzle; 10. connecting port; 11. piston rod; 12. piston head; 13. limit block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] See also Figure 1-4 In this embodiment, an inflation device for repairing a municipal pipeline includes an airbag 1 and a compressor 3 for inflating the airbag 1, and a ventilation structure is connected between the compressor 3 and the airbag 1.

[0024] In the present application, a ventilation structure is provided to replace the air passage between the compressor 3 and the airbag 1, so that the air outlet and the air inlet of the compressor 3 can be flexibly switched, thereby realizing the integrated inflation and deflating.

[0025] In this embodiment, the ventilation structure includes a ventilation box 6 and a piston member located in the ventilation box 6 .

[0026] Preferably, a balancing port 8 and a connecting port 10 are respectively provided at both ends of the ventilation box 6 , and a connecting valve pipe 4 is fixedly installed on the air inlet and air outlet of the compressor 3 , and the connecting valve pipe 4 corresponds to the connecting port 10 .

[0027] Such a design can, on the one hand, facilitate the connection between the compressor 3 and the ventilation box 6 , and on the other hand, can improve the sealing effect of the pipeline connection by connecting the valve pipe 4 .

[0028] It should be noted that a flow channel 7 is provided in the ventilation box 6 , and the balancing port 8 and the connecting port 10 are both connected to the flow channel 7 .

[0029] Through the connection of the flow channel 7, the airflow directions at both ends of the compressor 3 can be easily changed.

[0030] In this embodiment, the piston member includes a piston rod 11 slidably connected to the ventilation box 6 and a piston head 12 fixedly connected to the piston rod 11 . The piston head 12 is slidably connected to the flow channel 7 and can block the flow channel 7 through the piston head 12 .

[0031] In this embodiment, there are three balancing ports 8 , wherein the middle balancing port 8 is connected to an air nozzle 9 , and the air nozzle 9 is connected to the airbag 1 , and the airbag 1 can be inflated and deflated through the air nozzle 9 .

[0032] It should be noted that there are two connecting ports 10 , corresponding to the two connecting valve pipes 4 respectively, and there are three piston heads 12 , and the distance between the three piston heads 12 corresponds to the distance between the three balancing ports 8 .

[0033] In a specific implementation, by moving the piston rod 11 , the three piston heads 12 can make the two balancing ports 8 form a flow circuit when blocked.

[0034] In this embodiment, a limiting block 13 is fixedly mounted on one end of the piston rod 11 extending outside the ventilation box 6 , and the limiting blocks 13 include two.

[0035] In a specific implementation, the limit block 13 on one side is closely attached to the inner wall of the ventilation box 6 , so that the moving position of the piston head 12 can be limited, thereby realizing the suction switching at the air nozzle 9 .

[0036] It is worth noting that the piston head 12 and the flow channel 7 corresponding to the piston head 12 are both rectangular, so that the rotation of the piston rod 11 relative to the ventilation box 6 is limited.

[0037] In this embodiment, a stabilizing plate 2 is fixedly mounted on the bottom of the compressor 3 , a bracket 5 is fixedly mounted on the stabilizing plate 2 , and the connecting valve pipe 4 and the air exchange box 6 are fixedly connected to the stabilizing plate 2 via the bracket 5 .

[0038] This design improves the connection stability between the numerous valve pipes and reduces the occurrence of gas leakage. In addition, a latch is installed on the limit block 13 and plugged into the ventilation box 6 to limit the positioning of the piston rod 11.

[0039] The working principle of the above embodiment is:

[0040] By placing the airbag 1 in the municipal pipeline, by connecting the air nozzle 9 and the airbag 1 to each other, and at the same time pushing the piston rod 11 until the limit block 13 on one end is close to the outer wall of the ventilation box 6, the piston head 12 at this time cooperates with the three balance ports 8 to form a loop, and the exhaust end of the compressor 3 and the air nozzle 9 are connected to each other, so as to inflate the airbag 1, and the airbag 1 expands and fits to the inner wall of the municipal pipeline for sealing. After the construction is completed, by pushing the other end of the piston rod 11 toward the ventilation box 6, the piston head 12 at this time changes its position, and the air intake end of the compressor 3 and the air nozzle 9 are connected to each other, so as to achieve rapid air extraction of the airbag 1, thereby improving the use efficiency.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An inflatable device for repairing a municipal pipeline, comprising an air bag (1) and a compressor (3) for inflating the air bag (1), characterized in that: A ventilation structure is connected between the compressor (3) and the airbag (1); The ventilation structure comprises a ventilation box (6) and a piston member located in the ventilation box (6), wherein the piston member comprises a piston rod (11) slidably connected to the ventilation box (6) and a piston head (12) fixedly connected to the piston rod (11).

2. The inflatable device for repairing a municipal pipeline according to claim 1, characterized in that: The two ends of the ventilation box (6) are respectively provided with a balancing port (8) and a connecting port (10), and a connecting valve pipe (4) is fixedly installed on the air inlet and the air outlet of the compressor (3), and the connecting valve pipe (4) corresponds to the connecting port (10).

3. The inflatable device for repairing a municipal pipeline according to claim 2, characterized in that: A flow channel (7) is provided in the ventilation box (6), the balance port (8) and the connection port (10) are both connected to the flow channel (7), and the piston head (12) is slidably connected to the flow channel (7).

4. The inflatable device for repairing a municipal pipeline according to claim 3, characterized in that: The balancing port (8) comprises three portions, wherein the balancing port (8) in the middle portion is connected to an air nozzle (9), and the air nozzle (9) is connected to the air bag (1).

5. The inflatable device for repairing a municipal pipeline according to claim 4, characterized in that: There are two connecting ports (10) respectively corresponding to the two connecting valve pipes (4); there are three piston heads (12) in total, and the spacing between the three piston heads (12) corresponds to the spacing between the three balancing ports (8).

6. The inflatable device for repairing a municipal pipeline according to claim 1, characterized in that: A limit block (13) is fixedly mounted on one end of the piston rod (11) extending outside the ventilation box (6), and the limit blocks (13) include two.

7. The inflatable device for repairing a municipal pipeline according to claim 5, characterized in that: The piston head (12) and the flow channel (7) corresponding to the piston head (12) are both rectangular.

8. The inflatable device for repairing a municipal pipeline according to claim 2, characterized in that: A stabilizing plate (2) is also fixedly mounted on the bottom of the compressor (3), a bracket (5) is fixedly mounted on the stabilizing plate (2), and the connecting valve pipe (4) and the ventilation box (6) are both fixedly connected to the stabilizing plate (2) via the bracket (5).

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