Device for inflating and deflating blocking air bag by using air compressor

Abstract

The utility model discloses a device for inflating and deflating a plugging air bag by using an air compressor, which relates to the field of pipeline plugging and comprises the air compressor, a two-position five-way valve and an inflating and deflating valve, the two-position five-way valve is provided with a first connector, a second connector, a third connector, a fourth connector and a fifth connector. The two-position five-way valve can be switched between a lower position and an upper position, the lower position is that the first connector is communicated with the third connector, the second connector is communicated with the fourth connector and the fifth connector is disconnected, and the upper position is that the first connector is communicated with the fourth connector, the second connector is communicated with the fifth connector and the third connector is disconnected; an air suction port of the air compressor is communicated with the first connector, an air outlet of the air compressor is communicated with the second connector, the third connector and the fifth connector are both communicated with external air, an inflation and deflation port of the air bag is communicated with the fourth connector, and an inflation and deflation valve is arranged on a passage. The air bag has the advantage that the inflation and deflation efficiency of the air bag is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of pipeline blocking, in particular to a device for inflating and deflation of a blocking air bag by using an air compressor. Background Art

[0002] Municipal drainage pipeline construction is divided into several categories, including pipeline inspection, maintenance, and repair. Before pipeline maintenance and repair, both ends need to be sealed with air bags, and then drainage, dredging, flushing, etc. are carried out. Air bags with larger diameters are also larger in size. Because the inspection well opening is relatively small, the air bags need to be deflated and folded to reduce the volume before they can enter and exit. At present, the air bag is generally deflated by opening the air bag's deflation port and then relying on the air bag's own gravity to release the inflation pressure. For air bags with larger volumes, it takes a long time and is not thorough to release the inflation pressure by relying on its own gravity to deform. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to improve the inflation and deflation efficiency of the air bag.

[0004] The utility model solves the above technical problems through the following technical means: a device for inflating and deflation of a blocking airbag using an air compressor, comprising an air compressor, a two-position five-way valve and a charging and deflation valve; the two-position five-way valve is provided with a first interface, a second interface, a third interface, a fourth interface and a fifth interface; the two-position five-way valve can switch between a lower position and an upper position, the lower position is that the first interface is connected to the third interface, the second interface is connected to the fourth interface and the fifth interface is disconnected, the upper position is that the first interface is connected to the fourth interface, the second interface is connected to the fifth interface and the third interface is disconnected; the air intake of the air compressor is connected to the first interface, the air outlet of the air compressor is connected to the second interface, the third interface and the fifth interface are both connected to the external air, the charging and deflation port of the airbag is connected to the fourth interface and a charging and deflation valve is provided on the passage. The air compressor is used as a positive and negative pressure pump, which greatly improves the charging and deflation efficiency of the airbag, and the two-position five-way valve cooperates with the charging and deflation valve to realize the rapid conversion of the charging and deflation process of the airbag.

[0005] As an optimized technical solution, the device for inflating and deflation of the blocking airbag by using an air compressor further includes a first connecting pipe and an air replenishing valve, the air suction port of the air compressor is connected to the first interface through the first connecting pipe, and the first connecting pipe is provided with an air replenishing valve. The air replenishing valve can prevent the airbag from being deflated due to excessive vacuum, which may increase the power consumption of the air compressor and damage parts.

[0006] As an optimized technical solution, the device for inflating and deflation of the blocking airbag using an air compressor further includes a first air filter, which is arranged between the air supply valve on the first connecting pipe and the air intake of the air compressor. The first air filter can filter the air of the air compressor entering through the air supply valve to prevent dust and debris from entering the air compressor and causing wear.

[0007] As an optimized technical solution, the device for inflating and deflation of the plugging airbag using an air compressor also includes an air storage cylinder, a second connecting pipe and a pressure regulating valve, the air outlet of the air compressor is connected to the air inlet of the air storage cylinder, the air outlet of the air storage cylinder is connected to the second interface through the second connecting pipe, and the second connecting pipe is provided with a pressure regulating valve. The pressure regulating valve cooperates with the air storage cylinder to adjust the inflation pressure to prevent the airbag from bursting due to overcharging and the plugging failure due to insufficient inflation.

[0008] As an optimized technical solution, the device for inflating and deflation of the blocking airbag using an air compressor also includes an intake pipe and a second air filter, one end of the intake pipe is connected to the third interface, the other end of the intake pipe is connected to the outside air, and the intake pipe is provided with a second air filter. The second air filter can filter the air entering the two-position five-way valve from the outside to prevent dust and debris from entering the two-position five-way valve and causing wear.

[0009] As an optimized technical solution, the device for inflating and deflation of the blocking airbag using an air compressor also includes an exhaust pipe and a muffler, one end of the exhaust pipe is connected to the fifth interface, the other end of the exhaust pipe is connected to the external air, and a muffler is provided on the exhaust pipe. The muffler can reduce the noise caused by high-speed exhaust of the airbag.

[0010] As an optimized technical solution, the device for inflating and deflation of the blocking airbag using an air compressor also includes an air filling and deflation pipe, the airbag is a multi-chamber airbag, the air filling and deflation pipe includes a main pipe and multiple branch pipes connected to the main pipe, the main pipe is connected to the fourth interface, and each branch pipe is respectively connected to the air filling and deflation port of each chamber on the airbag, and each branch pipe is respectively provided with an air filling and deflation valve.

[0011] As an optimized technical solution, the gas charging and discharging valve adopts a solenoid valve.

[0012] The advantages of the utility model are:

[0013] 1. The air compressor can be used as a positive and negative pressure pump, which greatly improves the efficiency of airbag inflation and deflation. The two-position five-way valve cooperates with the inflation and deflation valve to realize the rapid conversion of the airbag inflation and deflation process.

[0014] 2. The air replenishing valve can prevent the air bag from being deflated due to excessive vacuum, which may cause the air compressor to absorb air, increase power consumption and damage parts.

[0015] 3. The two-stage air filter can prevent dust and debris from entering the air compressor and the two-position five-way valve and causing wear.

[0016] 4. The pressure regulating valve and the air storage cylinder can adjust the inflation pressure to prevent the airbag from bursting due to overcharging and the sealing failure due to insufficient inflation.

[0017] 5. The muffler can reduce the noise caused by high-speed exhaust of the airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of the inflated state of a device for inflating and deflation of a blocking airbag using an air compressor according to an embodiment of the utility model.

[0019] Figure 2 This is a structural schematic diagram of the deflated state of a device for inflating and deflation of a blocking airbag using an air compressor according to an embodiment of the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described in combination with the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0021] like Figure 1 , Figure 2 As shown, an embodiment of the utility model discloses a device for inflating and deflation of a blocking airbag using an air compressor, comprising an air compressor 1, a first connecting pipe 2, a first air filter 3, an air supply valve 4, an air storage cylinder 5, a second connecting pipe 6, a pressure regulating valve 7, a two-position five-way valve 8, an intake pipe 9, a second air filter 10, an exhaust pipe 11, a muffler 12, an air charging and deflation pipe 13, and an air charging and deflation valve 14, which can realize the inflation and deflation of the airbag 15.

[0022] The two-position five-way valve 8 is an existing valve, and the two-position five-way valve 8 is provided with a first interface T, a second interface P, a third interface S, a fourth interface A and a fifth interface R; the two-position five-way valve 8 can be switched between a lower position and an upper position, the lower position being that the first interface T is connected to the third interface S, the second interface P is connected to the fourth interface A and the fifth interface R is disconnected, and the upper position being that the first interface T is connected to the fourth interface A, the second interface P is connected to the fifth interface R and the third interface S is disconnected.

[0023] The air intake port of the air compressor 1 is connected to the first interface T through the first connecting pipe 2. The first connecting pipe 2 is provided with an air replenishing valve 4. The air replenishing valve 4 can prevent the air bag 7 from being deflated due to excessive vacuum, thereby causing the air compressor 1 to increase power consumption and damage parts; the first air filter 3 is arranged between the air replenishing valve 4 on the first connecting pipe 2 and the air intake port of the air compressor 1. The first air filter 3 can filter the air of the air compressor 1 entering through the air replenishing valve 4 to prevent dust and debris from entering the air compressor 1 and causing wear.

[0024] The air outlet of the air compressor 1 is connected to the air inlet of the air cylinder 5, and the air outlet of the air cylinder 5 is connected to the second interface P through the second connecting pipe 6. The air compressor 1 and the air cylinder 5 are used to provide positive and negative pressure air sources for the airbag 7; a pressure regulating valve 7 is provided on the second connecting pipe 6, and the pressure regulating valve 7 can set the inflation pressure in conjunction with the air cylinder 5 to prevent overcharging from causing the airbag 7 to explode and insufficient inflation from causing sealing failure.

[0025] One end of the intake pipe 9 is connected to the third interface S, and the other end of the intake pipe 9 is connected to the external air. A second air filter 10 is provided on the intake pipe 9. The second air filter 10 can filter the air entering the two-position five-way valve 8 from the outside to prevent dust and debris from entering the two-position five-way valve 8 and causing wear.

[0026] One end of the exhaust pipe 11 is connected to the fifth interface R, and the other end of the exhaust pipe 11 is connected to the external air. A muffler 12 is provided on the exhaust pipe 11, and the muffler 12 can reduce the noise caused by the high-speed exhaust of the airbag 7.

[0027] The airbag 15 is a multi-chamber airbag, and the inflation and deflation pipe 13 includes a main pipe and a plurality of branch pipes connected to the main pipe. The main pipe is connected to the fourth interface A, and each branch pipe is respectively connected to the inflation and deflation port of each chamber on the airbag 15. Each branch pipe is respectively provided with an inflation and deflation valve 14, which is used to control the inflation and deflation of the airbag 7, and the inflation and deflation valve 14 adopts an electromagnetic valve.

[0028] Working principle:

[0029] See also Figure 1 During inflation, the two-position five-way valve 8 is in the lower position, the pressure regulating valve 7 is at the set opening, the charging and discharging valve 14 is opened, the air compressor 1 rotates, and the external air passes through the second air filter 10, the third interface S, the first interface T and the first air filter 3 in sequence and enters the air intake port of the air compressor 1. After being compressed by the air compressor 1, the compressed air is formed and enters the air storage cylinder 5. After the pressure is adjusted by the pressure regulating valve 7, it passes through the second interface P, the fourth interface A and the charging and discharging valve 14 in sequence and enters the various compartments of the airbag 7; after the airbag 7 is inflated to the set pressure, the air compressor 1 stops, the charging and discharging valve 14 is closed, and the airbag 7 is in a pressure-maintaining and plugging state and is tightened against the inner wall of the pipeline; Figure 1 The direction of the arrow in the figure indicates the direction of air flow during the inflation process.

[0030] See also Figure 2When deflation, the two-position five-way valve 8 is in the upper position, the pressure regulating valve 7 is at the set opening, the charging and discharging valve 14 is opened, the air compressor 1 rotates, and the compressed air in the airbag 7 passes through the charging and discharging valve 14, the fourth interface A, the first interface T and the first air filter 3 in sequence and then enters the air intake port of the air compressor 1. Under the vacuum suction force formed by the air compressor 1, the compressed air passes through the air storage cylinder 5, the pressure regulating valve 7, the second interface P, the fifth interface R and the muffler 12 in sequence and is quickly discharged into the outside air; when the compressed air in the airbag 7 is completely sucked out to form a vacuum state, the air replenishing valve 4 is sucked open, and the outside air passes through the air replenishing valve 4 and the first air filter 3 in sequence to replenish and enter the air compressor 1 to prevent the air compressor 1 from being seriously sucked into air and causing damage. At this time, the deflation of the airbag 7 is completed, the air compressor 1 stops, the charging and discharging valve 14 is closed, and the airbag 7 is in a blocked and deflated state; Figure 2 The direction of the arrow is the air flow direction during the deflation process.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for inflating and deflation of a blocking airbag using an air compressor, characterized in that: It includes an air compressor, a two-position five-way valve and a charging and discharging valve; the two-position five-way valve is provided with a first interface, a second interface, a third interface, a fourth interface and a fifth interface; the two-position five-way valve can be switched between a lower position and an upper position, the lower position is that the first interface is connected to the third interface, the second interface is connected to the fourth interface and the fifth interface is disconnected, and the upper position is that the first interface is connected to the fourth interface, the second interface is connected to the fifth interface and the third interface is disconnected; the air intake port of the air compressor is connected to the first interface, the air outlet of the air compressor is connected to the second interface, the third interface and the fifth interface are both connected to the external air, the charging and discharging port of the airbag is connected to the fourth interface and the charging and discharging valve is provided on its passage.

2. The device for inflating and deflation of a blocking airbag using an air compressor according to claim 1, characterized in that: The device for inflating and deflation of the blocking airbag using an air compressor also includes a first connecting pipe and an air supply valve. The air intake of the air compressor is connected to the first interface through the first connecting pipe, and the first connecting pipe is provided with an air supply valve.

3. The device for inflating and deflation of a blocking airbag using an air compressor according to claim 2, characterized in that: The device for inflating and deflation of the blocking airbag using an air compressor also includes a first air filter, which is arranged between the air replenishment valve on the first connecting pipe and the air intake port of the air compressor.

4. The device for inflating and deflation of a blocking airbag using an air compressor according to claim 1, characterized in that: The device for inflating and deflation of the blocking airbag using an air compressor also includes an air cylinder, a second connecting pipe and a pressure regulating valve. The air outlet of the air compressor is connected to the air inlet of the air cylinder, and the air outlet of the air cylinder is connected to the second interface via the second connecting pipe. The second connecting pipe is provided with a pressure regulating valve.

5. The device for inflating and deflation of a blocking airbag using an air compressor according to claim 1, characterized in that: The device for inflating and deflation of the blocking airbag using an air compressor also includes an intake pipe and a second air filter. One end of the intake pipe is connected to a third interface, and the other end of the intake pipe is connected to external air. The intake pipe is provided with a second air filter.

6. The device for inflating and deflation of a blocking airbag using an air compressor according to claim 1, characterized in that: The device for inflating and deflation of the blocking airbag using an air compressor also includes an exhaust pipe and a muffler. One end of the exhaust pipe is connected to the fifth interface, and the other end of the exhaust pipe is connected to the external air. The exhaust pipe is provided with a muffler.

7. The device for inflating and deflation of a blocking airbag using an air compressor according to claim 1, characterized in that: The device for inflating and deflation of the blocking airbag using an air compressor also includes an air filling and deflation pipe. The airbag is a multi-chamber airbag. The air filling and deflation pipe includes a main pipe and multiple branch pipes connected to the main pipe. The main pipe is connected to a fourth interface, and each branch pipe is respectively connected to the air filling and deflation port of each chamber on the airbag, and each branch pipe is respectively provided with an air filling and deflation valve.

8. The device for inflating and deflation of a blocking airbag using an air compressor according to claim 1, characterized in that: The gas charging and discharging valve adopts a solenoid valve.

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