Air bag plugging device for drainage pipeline

Abstract

The utility model provides a drainage pipeline air bag plugging device which comprises pipe fittings, the number of the pipe fittings is two, the pipe fittings are of a semicircular structure, one ends of the pipe fittings are rotatably connected through a connecting pin, the other ends of the pipe fittings are locked through a fixing mechanism, and plugging air bags are fixedly installed at the two ends of the inner wall of each pipe fitting respectively. According to the drainage pipeline plugging device, the problem that a traditional plugging air bag cannot be tightly fixed in a drainage pipeline is solved, and the leaked water plugging effect of the plugging air bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipes, in particular to an air bag leakage plugging device for drainage pipes. Background Art

[0002] The drainage pipe blocking airbag is an airbag made of high-quality rubber, which is expanded by inflation. When the gas pressure in the blocking airbag reaches the specified requirement, the blocking airbag fills the entire drainage pipe section, and the friction between the blocking airbag wall and the drainage pipe is used to block the leakage, thereby achieving rapid blocking of the water flow in the target pipe section through inflation, thereby achieving the purpose of no water seepage.

[0003] In the prior art, when using a sealing airbag for a drainage pipe, most of the time the sealing airbag is directly placed into the drainage pipe, and the sealing airbag is sent into the drainage pipe by sliding the sealing airbag and the drainage pipe. However, due to the influence of the medium pressure, the sealing airbag is displaced, resulting in poor sealing, which may cause the drainage pipe to leak again, thereby affecting the effect of the sealing airbag in blocking the leakage. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a drainage pipe airbag sealing device, which avoids the problem that the traditional sealing airbag cannot be tightly fixed in the drainage pipe, and improves the effect of the sealing airbag in blocking water leakage.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A drainage pipe airbag sealing device includes a pipe fitting, wherein the pipe fitting is provided with two semicircular structures, one end of the pipe fitting is rotatably connected by a connecting pin, and the other end of the pipe fitting is locked by a fixing mechanism, and sealing airbags are fixedly installed at both ends of the inner wall of the pipe fitting, and the surface of the sealing airbags has a toothed structure.

[0007] Preferably, pressure gauges are respectively provided at both ends of the outer wall of the pipe fitting, and the pressure gauges pass through the pipe fitting and are fixedly connected to the blocking airbag.

[0008] Preferably, pressure relief holes are respectively provided at both ends of the outer wall of the tube, and the pressure relief holes pass through the tube and are connected with the blocking airbag.

[0009] Preferably, an inflation nozzle is provided between the pressure gauge and the pressure relief hole, and one end of the inflation nozzle passes through the pipe fitting and is communicated with the blocking airbag.

[0010] Preferably, one end of the inflation nozzle away from the blocking airbag is connected to the blower through an inflation pipe.

[0011] Preferably, the inflation pipe includes a first air pipe and a second air pipe, one end of the first air pipe is connected to the blower, the other end of the first air pipe is connected to a three-way pipe, the other two ends of the three-way pipe are respectively connected to the second air pipe, and the second air pipes are respectively connected to the inflation nozzles.

[0012] Preferably, the fixing mechanism comprises a fixing bolt and a fixing nut, and a plurality of screw holes are respectively provided at one end of the pipe fitting, and one end of the fixing bolt is threadedly connected with the fixing nut through the screw holes.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses by utilizing the air pressure generated by the gas in the sealing airbag, after compressing the pipe fitting, makes the pressure in the sealing airbag greater than the pressure of the medium in the drainage pipe, thereby forming a good seal to cope with any deformation of the drainage pipe, and can meet the requirements of rapid and leak-free blocking and interception when the drainage pipe is in operation. At the same time, the sealing surface formed by the sealing airbag with a toothed structure improves adhesion and sealing, avoids the problem that the traditional sealing airbag cannot be tightly fixed in the drainage pipe, improves the effect of the sealing airbag in blocking water leakage, and is safe and reliable, flexible to use, and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the pipe fitting of the utility model.

[0018] In the figure: 1. pipe fitting; 2. fixing mechanism; 21. fixing bolt; 22. fixing nut; 3. sealing airbag; 4. pressure gauge; 5. pressure relief hole; 6. inflation nozzle; 7. blower; 8. connecting pin; 9. inflation pipe; 91. first air pipe; 92. second air pipe; 10. three-way pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1 and Figure 2 As shown, an embodiment of the utility model provides an airbag sealing device for a drainage pipe, including a pipe fitting 1. The pipe fitting 1 is provided with two semicircular structures. One end of the two pipe fittings 1 can be rotatably connected by a connecting pin 8, and the other end of the pipe fitting 1 is locked by a fixing mechanism 2. Sealing airbags 3 are fixedly installed on both ends of the inner wall of the pipe fitting 1 respectively. The surface of the sealing airbag 3 has a toothed structure. The sealing airbag 3 with the toothed structure can better fit the inner wall of the drainage pipe, so as to have good adhesion and sealing properties. When the drainage pipe leaks, the two pipe fittings 1 are rotated to open them so that they cooperate with the leaking part of the drainage pipe, and then the two pipe fittings 1 are merged. After being locked and tightened by the fixing mechanism 2, the sealing airbag 3 is inflated and the air pressure is observed. After the leakage is stopped, the inflation is stopped, which can meet the requirements of rapid leakage-free blocking and interception in the operation of the drainage pipe.

[0021] On the basis of the above embodiment, pressure gauges 4 are respectively provided at both ends of the outer wall of the pipe fitting 1. The pressure gauges 4 pass through the pipe fitting 1 and are fixedly connected to the blocking airbag 3. The pressure gauge 4 can monitor the pressure of the blocking airbag 3 to ensure that the pressure of the blocking airbag 3 is not lower than the pressure of the drainage pipe and ensure that the blocking airbag 3 can be replenished with gas in time.

[0022] Furthermore, pressure relief holes 5 are respectively provided at both ends of the outer wall of the pipe 1 , and the pressure relief holes 5 pass through the pipe 1 and are connected with the blocking airbag 3 . When the air pressure in the blocking airbag 3 is too high, the pressure relief holes 5 can relieve the pressure.

[0023] Furthermore, an inflation nozzle 6 is arranged between the pressure gauge 4 and the pressure relief hole 5. One end of the inflation nozzle 6 passes through the pipe fitting 1 and is connected with the blocking airbag 3. The end of the inflation nozzle 6 away from the blocking airbag 3 is connected with the blower 7 through the inflation pipe 9, thereby inflating the blocking airbag 3.

[0024] Specifically, the inflation tube 9 includes a first air tube 91 and a second air tube 92. One end of the first air tube 91 is connected to the air blower 7, and the other end of the first air tube 91 is connected to the three-way tube 10. The other two ends of the three-way tube 10 are respectively connected to the second air tube 92, and the second air tube 92 is respectively connected to the inflation nozzle 6. Through the above-mentioned structural setting, the two blocking airbags 3 can be inflated at the same time, which is convenient and quick, and avoids the difference in air pressure of the blocking airbags 3.

[0025] Specifically, the fixing mechanism 2 includes a fixing bolt 21 and a fixing nut 22. One end of the pipe fitting 1 is respectively provided with a plurality of screw holes. One end of the fixing bolt 21 is threadedly connected to the fixing nut 22 through the screw holes, so that the two pipe fittings 1 can be more tightly connected.

[0026] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model 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 can still be modified, or some of the technical features can 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 various embodiments of the utility model.

Claims

1. A drainage pipe airbag plugging device, comprising a pipe fitting (1), characterized in that: The pipe fitting (1) is provided with two semicircular structures, one end of the pipe fitting (1) is rotatably connected via a connecting pin (8), and the other end of the pipe fitting (1) is locked via a fixing mechanism (2). Both ends of the inner wall of the pipe fitting (1) are respectively fixedly mounted with blocking airbags (3), and the surface of the blocking airbags (3) has a toothed structure.

2. The drainage pipe airbag plugging device according to claim 1, characterized in that: Pressure gauges (4) are respectively provided at both ends of the outer wall of the pipe (1), and the pressure gauges (4) respectively pass through the pipe (1) and are fixedly connected to the blocking airbag (3).

3. The drainage pipe airbag blocking device according to claim 2, characterized in that: Pressure relief holes (5) are also provided at both ends of the outer wall of the pipe (1), and the pressure relief holes (5) pass through the pipe (1) and are connected to the blocking airbag (3).

4. The drainage pipe airbag plugging device according to claim 3, characterized in that: An inflation nozzle (6) is provided between the pressure gauge (4) and the pressure relief hole (5), and one end of the inflation nozzle (6) passes through the pipe (1) and is connected to the blocking airbag (3).

5. The drainage pipe airbag plugging device according to claim 4, characterized in that: One end of the inflation nozzle (6) away from the blocking airbag (3) is connected to the air blower (7) via an inflation pipe (9).

6. The drainage pipe airbag plugging device according to claim 5, characterized in that: The inflation pipe (9) comprises a first air pipe (91) and a second air pipe (92); one end of the first air pipe (91) is connected to the air blower (7); the other end of the first air pipe (91) is connected to a three-way pipe (10); the other two ends of the three-way pipe (10) are respectively connected to the second air pipe (92); and the second air pipes (92) are respectively connected to the inflation nozzles (6).

7. The drainage pipe airbag plugging device according to claim 1, characterized in that: The fixing mechanism (2) comprises a fixing bolt (21) and a fixing nut (22); one end of the pipe (1) is respectively provided with a plurality of screw holes; one end of the fixing bolt (21) is threadedly connected to the fixing nut (22) through the screw holes.

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