Detection device for safety pressure valve in breathing balloon

Abstract

The utility model relates to the technical field of safety pressure valve body detection devices, in particular to a detection device for a safety pressure valve in a breathing balloon, which comprises a soaking tank and a safety pressure valve body, a rotating shaft is rotatably connected in the soaking tank, and a plurality of uniformly distributed support plates are fixedly connected to the outer wall of the rotating shaft. A U-shaped groove is formed in the upper end of the supporting plate, an air cylinder is installed at the front end of the U-shaped groove, the output end of the air cylinder penetrates through the supporting plate and is fixedly connected with an air guide bin located in the U-shaped groove, the outer wall of the air guide bin communicates with a flow guide pipe, and a rotating shaft is driven by a driving mechanism to rotate. When the rotating shaft rotates, the supporting plates connected with the rotating shaft are driven, the safety pressure valve body is soaked in water in the soaking box, whether bubbles are generated or not is observed, it is indicated that sealing is good if no bubbles exist, and in conclusion, the purposes that multiple safety valves of different models can be detected, and the detection efficiency is high are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of a safety pressure valve testing device, specifically a testing device for a safety pressure valve used in a breathing bag. Background Technology

[0002] The safety pressure valve in a breathing bag primarily serves a protective function. When the breathing bag is squeezed, causing excessive airway pressure, the safety pressure valve opens. This prevents barotrauma to the patient's lungs from excessive pressure. For example, during ventilation, if excessive force is applied or there is partial airway obstruction leading to a sudden increase in pressure, the safety pressure valve acts like a "safety valve," releasing the excess pressure and ensuring ventilation remains within a relatively safe pressure range. Pressure detection devices are used before the breathing bag's first use, during regular maintenance checks, and after repairs.

[0003] Existing safety pressure valve testing devices typically consist of a pressure supply section, a sealing connection section, and a testing groove section. The sealing connection section can usually only seal the air inlet of one safety pressure valve body. During the testing process, one valve can only be tested after another has been tested, which is inconvenient for testing multiple different types of safety valves simultaneously and results in low testing efficiency. Therefore, a testing device for safety pressure valves in breathing balloons is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a detection device for safety pressure valves in breathing balloons, which has the characteristics of being able to detect multiple different types of safety valves and having high detection efficiency.

[0005] The purpose of this utility model is to provide a detection device for a safety pressure valve in a breathing bag, including a water immersion tank and a safety pressure valve body. The water immersion tank is rotatably connected to a rotating shaft. The outer wall of the rotating shaft is fixedly connected to multiple evenly distributed support plates. The upper end of the support plate is provided with a U-shaped groove. A cylinder is installed at the front end of the U-shaped groove. The output end of the cylinder passes through the support plate and is fixedly connected to an air guide chamber located inside the U-shaped groove. The outer wall of the air guide chamber is connected to a guide pipe. A pressure sensor and a pressure regulating valve are installed on the outer wall of the guide pipe. The air inlet of the safety pressure valve body abuts against the air guide chamber, and the other end abuts against the inner wall of the U-shaped groove.

[0006] The front end of the immersion tank is provided with an air box, and the outer wall of the air box is connected to a drainage pipe. Multiple drainage pipes are connected to the drainage pipe through flexible pipes.

[0007] A drive mechanism is provided at the right end of the immersion tank.

[0008] To facilitate the rotation of the drive shaft, as a preferred detection device for the safety pressure valve in a breathing bag according to this utility model, the drive mechanism includes a fixed plate fixedly connected to the right end of the immersion tank. An electric push rod is installed at the rear end of the fixed plate. The output end of the electric push rod passes through the fixed plate and is fixedly connected to a rack. The right end of the drive shaft extends to the right end of the immersion tank and a gear that meshes with the rack is fixedly connected to its outer wall.

[0009] To facilitate the introduction of gas from inside the air chamber into the drainage tube, as a preferred detection device for the safety pressure valve in a breathing bag according to this invention, an air pump is installed on the outer wall of the drainage tube.

[0010] To increase the sealing between the air chamber and the air inlet of the safety pressure valve body, as a preferred embodiment of the detection device for the safety pressure valve in a breathing bag according to this utility model, a sealing gasket is installed at the front end of the air chamber.

[0011] To facilitate the drainage of liquid into the immersion tank, as a preferred detection device for the safety pressure valve in a breathing bag according to this invention, the outer wall of the immersion tank is equipped with a liquid inlet pipe.

[0012] In order to control the operation of each component, as a preferred detection device for the safety pressure valve in a breathing bag according to this utility model, a controller is installed at the front end of the immersion tank.

[0013] To increase the stability of the clamping safety pressure valve body, as a preferred detection device for the safety pressure valve in a breathing bag according to this utility model, a rubber pad is installed on the rear end face inside the U-shaped groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention involves placing multiple safety pressure valve bodies to be tested into the interiors of multiple U-shaped grooves, with one end of each valve body abutting against the rear end of the U-shaped groove. A cylinder drives an air guide chamber to move, bringing it into contact with the air inlet of the safety pressure valve body, thus clamping and fixing the valve body in place. An air pump draws gas from inside a gas chamber through a drainage pipe, flexible tubing, and corresponding guide pipes, ultimately delivering it to the air guide chamber and the interior of the safety pressure valve body. During this process, pressure sensors detect the gas pressure as it passes through different guide pipes and adjust the opening degree of the corresponding pressure regulating valves to apply different pressures to different safety pressure valve bodies. A drive mechanism then drives a rotating shaft to rotate, immersing multiple connected support plates and the safety pressure valve body in water within a immersion tank. The presence of air bubbles is observed; the absence of bubbles indicates a good seal. In summary, this invention achieves the goal of efficiently testing multiple safety valves of different models. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 This is a partial structural diagram of the present invention.

[0019] In the diagram: 1. Immersion tank; 2. Air chamber; 3. Drainage pipe; 4. Rotating shaft; 5. Support plate; 6. U-shaped groove; 7. Cylinder; 8. Air guide chamber; 9. Safety pressure valve body; 10. Fixing plate; 11. Gear; 12. Rack; 13. Pressure sensor; 14. Air pump; 15. Drainage pipe; 16. Electric actuator; 17. Pressure regulating valve. Detailed Implementation

[0020] Please see Figures 1 to 3 A detection device for a safety pressure valve in a breathing bag includes a water tank 1 and a safety pressure valve body 9. A rotating shaft 4 is rotatably connected inside the water tank 1. Multiple evenly distributed support plates 5 are fixedly connected to the outer wall of the rotating shaft 4. A U-shaped groove 6 is opened at the upper end of the support plate 5. A cylinder 7 is installed at the front end of the U-shaped groove 6. The output end of the cylinder 7 passes through the support plate 5 and is fixedly connected to an air guide chamber 8 located inside the U-shaped groove 6. A guide pipe 15 is connected to the outer wall of the air guide chamber 8. A pressure sensor 13 and a pressure regulating valve 17 are installed on the outer wall of the guide pipe 15. The air inlet of the safety pressure valve body 9 abuts against the air guide chamber 8, and the other end abuts against the inner wall of the U-shaped groove 6.

[0021] An air box 2 is provided at the front end of the immersion tank 1. The outer wall of the air box 2 is connected to a drainage pipe 3. Multiple drainage pipes 15 are connected to the drainage pipe 3 through flexible pipes.

[0022] A drive mechanism is provided at the right end of the immersion tank 1.

[0023] In this embodiment: During use, multiple safety pressure valve bodies 9 to be tested are placed inside multiple U-shaped grooves 6, with one end of the safety pressure valve body 9 abutting against the rear end inside the U-shaped groove 6. The cylinder 7 is activated to drive the air guide chamber 8 to move, so that the air guide chamber 8 abuts against the air inlet of the safety pressure valve body 9, clamping and fixing the safety pressure valve body 9. Then, the air pump 14 is activated to deliver the gas inside the air tank 2 through the drainage pipe 3, the flexible pipe and the corresponding guide pipe 15, and finally to the air guide chamber 8 and the safety pressure valve body 9. During this process, when the gas passes through different guide pipes 15, the corresponding pressure sensor 13 detects the gas pressure and adjusts the opening degree of the corresponding pressure regulating valve 17 to apply different pressures to different safety pressure valve bodies 9. Then, the drive mechanism drives the rotating shaft 4 to rotate. When the rotating shaft 4 rotates, it drives the multiple support plates 5 and the safety pressure valve body 9 connected to it to be immersed in the water inside the immersion tank 1, and observes whether bubbles are generated. No bubbles indicate that the seal is good.

[0024] As a technical optimization of this utility model, the driving mechanism includes a fixed plate 10 fixedly connected to the right end of the immersion tank 1. An electric push rod 16 is installed at the rear end of the fixed plate 10. The output end of the electric push rod 16 passes through the fixed plate 10 and is fixedly connected to a rack 12. The right end of the rotating shaft 4 extends to the right end of the immersion tank 1 and a gear 11 that meshes with the rack 12 is fixedly connected to the outer wall.

[0025] In this embodiment: the rack 12 can be easily driven to move by the electric push rod 16. When the rack 12 moves, it drives the gear 11 to rotate. When the gear 11 rotates, it drives the rotating shaft 4 to rotate.

[0026] As a technical optimization of this utility model, an air pump 14 is installed on the outer wall of the drainage tube 3.

[0027] In this embodiment, the gas inside the gas box 2 can be conveniently introduced into the drainage pipe 3 by the air pump 14.

[0028] As a technical optimization of this utility model, a sealing gasket is installed at the front end of the air guide chamber 8.

[0029] In this embodiment, the sealing between the air chamber 8 and the air inlet end of the safety pressure valve body 9 can be increased by using a sealing gasket.

[0030] As a technical optimization of this utility model, an inlet pipe is installed on the outer wall of the immersion tank 1.

[0031] In this embodiment, the liquid inlet pipe is connected to an external water pipe, and the liquid can be conveniently diverted into the interior of the immersion tank 1 through the liquid inlet pipe.

[0032] As a technical optimization of this utility model, a controller is installed at the front end of the immersion tank 1.

[0033] In this embodiment, the controller is electrically connected to the pressure sensor 13, the pressure regulating valve 17, the cylinder 7, and the electric actuator 16, and the operation of each component can be controlled by the controller.

[0034] As a technical optimization of this utility model, a rubber pad is installed on the rear end face inside the U-shaped groove 6.

[0035] In this embodiment, the stability of the safety pressure valve body 9 is increased by using a rubber pad.

[0036] Working principle: Before use, the outlet end of the safety pressure valve body 9 is sealed and blocked by a blind flange and bolts (existing technology). During use, the multiple safety pressure valve bodies 9 to be tested are first placed into the interiors of multiple U-shaped grooves 6, so that one end of the safety pressure valve body 9 abuts against the rear end of the U-shaped groove 6. The cylinder 7 is started to drive the air guide chamber 8 to move, so that the sealing gasket of the air guide chamber 8 abuts against the air inlet of the safety pressure valve body 9, clamping and fixing the safety pressure valve body 9. Then, the air pump 14 is started to deliver the gas inside the air box 2 through the drainage pipe 3, the hose pipe and the corresponding guide pipe 15, and finally to the air guide chamber 8 and the interior of the safety pressure valve body 9. During this process, when the gas passes through different guide pipes 15, the corresponding pressure sensor 13 detects the gas pressure and adjusts the opening degree of the corresponding pressure regulating valve 17 to apply different pressures to different safety pressure valve bodies 9.

[0037] Next, the rack 12 is driven to move by the electric actuator 16. When the rack 12 moves, it drives the gear 11 to rotate. When the gear 11 rotates, it drives the rotating shaft 4 to rotate. When the rotating shaft 4 rotates, it drives the multiple support plates 5 and the safety pressure valve body 9 connected to it to be immersed in the water inside the immersion tank 1 (the immersion tank 1 is a transparent structure). It is observed whether bubbles are generated. If there are no bubbles, it means that the seal is good.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 detection device for a safety pressure valve in a breathing bag, comprising a water immersion tank (1) and a safety pressure valve body (9), characterized in that: The immersion tank (1) is rotatably connected to a rotating shaft (4). The outer wall of the rotating shaft (4) is fixedly connected to multiple evenly distributed support plates (5). The upper end of the support plate (5) is provided with a U-shaped groove (6). A cylinder (7) is installed at the front end of the U-shaped groove (6). The output end of the cylinder (7) passes through the support plate (5) and is fixedly connected to an air guide chamber (8) located inside the U-shaped groove (6). The outer wall of the air guide chamber (8) is connected to a guide pipe (15). A pressure sensor (13) and a pressure regulating valve (17) are installed on the outer wall of the guide pipe (15). The air inlet of the safety pressure valve body (9) abuts against the air guide chamber (8), and the other end abuts against the inner wall of the U-shaped groove (6). The front end of the immersion tank (1) is provided with an air box (2), and the outer wall of the air box (2) is connected to a drainage pipe (3). Multiple drainage pipes (15) are connected to the drainage pipe (3) through flexible pipes. A drive mechanism is provided at the right end of the immersion tank (1).

2. The detection device for the safety pressure valve in a breathing bag according to claim 1, characterized in that: The drive mechanism includes a fixed plate (10) fixedly connected to the right end of the immersion tank (1). An electric push rod (16) is installed at the rear end of the fixed plate (10). The output end of the electric push rod (16) passes through the fixed plate (10) and is fixedly connected to a rack (12). The right end of the rotating shaft (4) extends to the right end of the immersion tank (1) and a gear (11) that meshes with the rack (12) is fixedly connected to its outer wall.

3. The detection device for the safety pressure valve in a breathing bag according to claim 1, characterized in that: An air pump (14) is installed on the outer wall of the drainage tube (3).

4. The detection device for the safety pressure valve in a breathing bag according to claim 1, characterized in that: A sealing gasket is installed at the front end of the air guide chamber (8).

5. The detection device for the safety pressure valve in a breathing bag according to claim 1, characterized in that: The outer wall of the immersion tank (1) is equipped with a liquid inlet pipe.

6. The detection device for the safety pressure valve in a breathing bag according to claim 1, characterized in that: A controller is installed at the front end of the immersion tank (1).

7. The detection device for the safety pressure valve in a breathing bag according to claim 1, characterized in that: A rubber pad is installed on the rear end face inside the U-shaped groove (6).

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