Protective performance tester for isolated compressed oxygen respirator

Abstract

The utility model discloses a protective performance tester for an isolated compressed oxygen respirator, which comprises an air flow meter box body, a constant-temperature and constant-humidity box, a computer industrial personal computer, a sample test box and a respiration simulation lung, the air flow meter box body is positioned on the right side of the constant-temperature and constant-humidity box, and the computer industrial personal computer is mounted at the top of the air flow meter box body; the sample testing box is mounted at the top of the constant-temperature and constant-humidity box and is positioned on the left side of the industrial personal computer; the breathing simulation lung comprises an air cylinder, a fixing frame, a fixing disc, a servo motor and a ball screw, the fixing frame is fixed to the air cylinder, the fixing disc is fixed to the other end of the fixing frame, the servo motor and the ball screw are transversely installed at the top of the fixing disc at equal intervals, and synchronous wheels are arranged at the driving ends of the servo motor and the ball screw; and the group of synchronous wheels are connected through a belt. The tester can simulate gas pollution conditions in various environments and test the filtering performance and the oxygen supply capacity of the respirator so as to ensure the safety of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection test mechanism devices, in particular to an isolation type compressed oxygen breathing apparatus protection performance tester. Background Technique

[0002] The compressed oxygen self-rescuer, also known as the isolation type compressed oxygen self-rescuer, is a reusable self-rescue and escape equipment with high-pressure compressed oxygen as the oxygen source, and is mainly used in coal mines or ordinary atmospheric pressure working environments when toxic and harmful gas outbursts and hypoxia asphyxiation disasters occur.

[0003] The existing safety protection test mechanism has the following defects:

[0004] The existing safety protection test mechanism cannot test the compressed oxygen self-rescuer under different pollution environments, resulting in the problem of insufficient safety of the compressed oxygen self-rescuer. Therefore, a solution needs to be given. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides an isolation type compressed oxygen breathing apparatus protection performance tester to solve the problems put forward in the above background technique.

[0007] (II) Technical Solutions

[0008] To achieve the above purposes, the utility model is realized through the following technical solutions: an isolation type compressed oxygen breathing apparatus protection performance tester, including an air flow meter box, a constant temperature and humidity box, a computer industrial control machine, a sample test box and a breathing simulation lung. The air flow meter box is located on the right side of the constant temperature and humidity box. The computer industrial control machine is installed on the top of the air flow meter box. The sample test box is installed on the top of the constant temperature and humidity box. The sample test box is located on the left side of the computer industrial control machine. The breathing simulation lung includes a cylinder, a fixing frame, a fixing plate, a servo motor and a ball screw. The fixing frame is fixed on the cylinder. The fixing plate is fixed at the other end of the fixing frame. The servo motor and the ball screw are both installed on the top of the fixing plate in a horizontal equidistant manner. Synchronous wheels are provided at the driving ends of the servo motor and the ball screw. A group of synchronous wheels are connected by a belt. The sliding end of the ball screw is connected to the driving end of the cylinder.

[0009] Preferably, the constant temperature and humidity box includes a water tank, a temperature and humidity meter, a water replenishing bottle and a liquid level meter. The temperature and humidity meter and the liquid level meter are both installed in the water tank. The water replenishing bottle is installed on the top of the water tank.

[0010] Preferably, the water tank is in an I-shaped structure. A heater is installed on the side of the water tank. A scale is provided on the surface of the water tank.

[0011] Preferably, a plurality of groups of heat dissipation strips are provided on the right side of the computer industrial control machine, the air flow meter box body, and the bottom of the constant temperature and humidity box, and the heat dissipation strips are in a long strip structure.

[0012] (III) Beneficial Effects

[0013] The utility model provides an isolated compressed oxygen breathing apparatus protection performance tester. It has the following beneficial effects:

[0014] This isolated compressed oxygen breathing apparatus protection performance tester can simulate the gas pollution situation in various environments, test the filtration performance and oxygen supply capacity of the breathing apparatus to ensure the safety of users. During the test, the sample to be tested is placed in the test chamber, the breathing joint is connected, the pipeline is connected, the sealing performance is ensured, and the power is turned on to start the test. The test can display the change curve of time and protection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the whole utility model;

[0016] Figure 2 It is a schematic structural diagram of the breathing simulation lung of the utility model;

[0017] Figure 3 It is a schematic structural diagram of the constant temperature and humidity box of the utility model.

[0018] In the figure, 1. air flow meter box body; 2. constant temperature and humidity box; 3. computer industrial control machine; 4. sample test box; 5. breathing simulation lung; 6. cylinder; 7. fixing frame; 8. fixing disk; 9. servo motor; 10. ball screw; 11. synchronous pulley; 12. water tank; 13. temperature and humidity meter; 14. water replenishing bottle; 15. liquid level gauge; 16. heater; 17. scale; 18. heat dissipation strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-3, an embodiment of the present utility model provides a technical solution: an isolation type compressed oxygen breathing apparatus protection performance tester, which includes an air flowmeter box body 1, a constant temperature and humidity box 2, a computer industrial control machine 3, a sample test box 4 and a breathing simulation lung 5. The air flowmeter box body 1 is located on the right side of the constant temperature and humidity box 2. The computer industrial control machine 3 is installed on the top of the air flowmeter box body 1. The sample test box 4 is installed on the top of the constant temperature and humidity box 2. The sample test box 4 is located on the left side of the computer industrial control machine 3;

[0021] The problem solved is that the breathing simulation lung 5 includes a cylinder 6, a fixing frame 7, a fixing plate 8, a servo motor 9 and a ball screw 10. The fixing frame 7 is fixed on the cylinder 6. The fixing plate 8 is fixed at the other end of the fixing frame 7. The servo motor 9 and the ball screw 10 are both installed on the top of the fixing plate 8 in a horizontal equidistant manner. Synchronous wheels 11 are provided at the driving ends of the servo motor 9 and the ball screw 10. A group of synchronous wheels 11 are connected by a belt. The sliding end of the ball screw 10 is connected to the driving end of the cylinder 6. When in use, the synchronous wheel 11 on the servo motor 9 drives the synchronous wheel 11 on the ball screw 10 through the belt, thereby driving the ball screw 10 to move. During the movement, the ball screw 10 can drive the cylinder 6 to intake and exhaust air, further achieving the purpose of simulating the lung for testing.

[0022] Furthermore, the constant temperature and humidity box 2 includes a water tank 12, a temperature and humidity meter 13, a water replenishing bottle 14 and a liquid level gauge 15. The temperature and humidity meter 13 and the liquid level gauge 15 are both installed in the water tank 12. The water replenishing bottle 14 is installed on the top of the water tank 12. Through the liquid pressure gauge 15, it is convenient to know the amount of water in the water tank 12. The temperature and humidity meter 13 is for the staff to know the temperature and humidity of the constant temperature and humidity box 2. The water replenishing bottle 14 is for the purpose of replenishing water.

[0023] Differently, the water tank 12 is in an I-shaped structure. A heater 16 is installed on the side of the water tank 12. A scale 17 is provided on the surface of the water tank 12. The heater 16 can heat the water in the water tank 12 to further achieve the temperature and humidity. The scale 17 is for the staff to observe the situation of the water in the water tank 12.

[0024] Effectively, a number of heat dissipation strips 18 are opened on the right side of the computer industrial control machine 3, at the bottom of the air flowmeter box body 1 and at the bottom of the constant temperature and humidity box 2. The heat dissipation strips 18 are in a long strip structure. By opening the heat dissipation strips 18 on the right side of the computer industrial control machine 3, at the bottom of the air flowmeter box body 1 and at the bottom of the constant temperature and humidity box 2, the equipment can be effectively dissipated heat, preventing the heat from not being discharged and affecting the operation.

[0025] Working principle: During the test, the staff places the sample to be tested into the sample test chamber 4, connects the breathing joint, connects the pipeline, ensures the airtightness, and then turns on the power supply to start the test. The test can display the change curves of time and protection performance. Then, the synchronous pulley 11 on the servo motor 9 drives the synchronous pulley 11 on the ball screw 10 through the belt, thereby driving the ball screw 10 to move. During the movement, the ball screw 10 can drive the cylinder 6 to intake and exhaust air, further simulating the purpose of testing with the lungs.

[0026] For the 1. air flow meter box body, 2. constant temperature and humidity chamber, 3. computer industrial control machine, 4. sample test chamber, 5. breathing simulation lung, 6. cylinder, 7. fixing frame, 8. fixing plate, 9. servo motor, 10. ball screw, 11. synchronous pulley, 12. water tank, 13. temperature and humidity meter, 14. water replenishing bottle, 15. liquid level gauge, 16. heater, 17. scale, 18. heat dissipation strip of the present utility model, the components are all common standard parts or parts known to those skilled in the art. Their structures and principles can all be learned by those skilled in the art through technical manuals or obtained through conventional experimental methods. The problem solved by the present utility model is that the existing safety protection test mechanism cannot test the compressed oxygen self-rescuer under different polluted environments, resulting in insufficient safety of the compressed oxygen self-rescuer. Through the mutual combination of the above components, the present utility model can simulate the gas pollution conditions in various environments, test the filtering performance and oxygen supply capacity of the breathing apparatus to ensure the safety of users.

[0027] The above has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An isolated compressed oxygen breathing apparatus protection performance tester, characterized in that: The invention comprises an air flow meter box (1), a constant temperature and humidity chamber (2), a computer industrial control computer (3), a sample test box (4) and a breathing simulation lung (5), wherein the air flow meter box (1) is located on the right side of the constant temperature and humidity chamber (2), the computer industrial control computer (3) is installed on the top of the air flow meter box (1), the sample test box (4) is installed on the top of the constant temperature and humidity chamber (2), and the sample test box (4) is located on the left side of the computer industrial control computer (3); The breathing simulation lung (5) comprises a cylinder (6), a fixing frame (7), a fixing plate (8), a servo motor (9) and a ball screw (10), wherein the fixing frame (7) is fixed on the cylinder (6), the fixing plate (8) is fixed on the other end of the fixing frame (7), the servo motor (9) and the ball screw (10) are both installed on the top of the fixing plate (8) in a transversely equidistant manner, the driving ends of the servo motor (9) and the ball screw (10) are both provided with synchronous wheels (11), a group of synchronous wheels (11) are connected to each other by belts, and the sliding end of the ball screw (10) is connected to the driving end of the cylinder (6).

2. The protective performance tester of an isolated compressed oxygen breathing apparatus according to claim 1, characterized in that: The constant temperature and humidity chamber (2) comprises a water tank (12), a thermometer and hygrometer (13), a water replenishment bottle (14) and a liquid level meter (15); the thermometer and hygrometer (13) and the liquid level meter (15) are both installed in the water tank (12), and the water replenishment bottle (14) is installed on the top of the water tank (12).

3. The protective performance tester of an isolated compressed oxygen breathing apparatus according to claim 2, characterized in that: The water tank (12) is in an I-shaped structure, a heater (16) is installed on the side of the water tank (12), and a scale (17) is provided on the surface of the water tank (12).

4. The protective performance tester of an isolated compressed oxygen breathing apparatus according to claim 1, characterized in that: A plurality of groups of heat dissipation strips (18) are provided on the right side of the industrial computer (3), the air flow meter housing (1) and the bottom of the constant temperature and humidity chamber (2), and the heat dissipation strips (18) are in the form of long strips.

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