Explosion-proof long pipe respirator for limited space operation

Abstract

The utility model relates to the technical field of long-tube respirators, in particular to an explosion-proof long-tube respirator for limited space operation, which comprises a respirator main body, a breathing tube, a first bandage, a second bandage and straps, the respirator main body comprises a filter box, a gas mixing box is arranged on the lower side of the filter box, a protection box is arranged on the lower side of the gas mixing box, and the first bandage and the second bandage are arranged in the protection box. An oxygen tank is installed in the filter box, a first electromagnetic valve is installed at the lower end of the oxygen tank, a second electromagnetic valve is installed in the protection box, and a connector is arranged at the lower end of the second electromagnetic valve. The respirator body is fixed to the back of a user through the first binding band, the second binding band and the straps, the respirator body is attached to the back, the carrying convenience of the long-pipe respirator is improved, the long-pipe respirator can be used in a limited space easily, oxygen is added into the gas mixing box through the oxygen tank, and the use safety of the long-pipe respirator is improved. The oxygen supply of a user is prevented from being influenced by too low oxygen content in the gas.

Description

Technical Field

[0001] The utility model relates to the technical field of long-tube respirators, in particular to an explosion-proof long-tube respirator for operations in confined spaces. Background Art

[0002] Long-tube respirators use small cotton filters to supply fresh air that meets air quality standards to users through non-toxic and odorless long tubes. They are protective equipment that protects the safety of the human respiratory system. In environments with high dust concentrations, people can work easily and happily. They are the best personal protective equipment for preventing pneumoconiosis and are suitable for a variety of dusty workplaces. Limited spaces and harsh environments have high requirements on the shape and size of long-tube respirators, and explosion-proof long-tube respirators are needed to replace conventional long-tube respirators.

[0003] A Chinese patent discloses an explosion-proof, electrically powered, long-tube respirator (authorization publication number CN212282586U). This patented technology utilizes filter layers to filter the air blown out by an explosion-proof blower. The outer filter cotton layer removes particulate matter such as dust, while the inner activated carbon layer adsorbs various toxic and hazardous substances, ensuring that workers breathe clean, fresh air. However, the long-tube respirator utilizes rollers for movement, making it difficult to carry within confined spaces and limiting its flexibility. Furthermore, its reliance on filtered air for breathing can affect the user's oxygen supply in oxygen-deficient environments, compromising its effectiveness. Therefore, those skilled in the art have provided an explosion-proof long-tube respirator for confined space operations to address the issues raised in the aforementioned background art. Utility Model Content

[0004] The purpose of the present utility model is to provide an explosion-proof long-tube respirator for working in a confined space, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The air filter is connected to the air filter housing, and the air filter is connected to the air filter housing by the air filter housing, and the second air filter housing is connected to the air filter housing by the air filter housing.

[0007] As a further solution of the present invention: a controller is installed on one side of the protection box, an air intake net is provided on the upper side of the filter box, a filter net is provided at the upper end of the filter box, an oxygen content sensor is installed inside the gas mixing box, an inflation head is installed on one side of the oxygen tank, a stirring blade is provided inside the gas mixing box, and a motor is installed at the position of the stirring blade on the upper side of the gas mixing box.

[0008] As a further solution of the present invention: the interior of the filter box is connected to the input end of the air extraction pipe, the output end of the air extraction pipe is connected to the input end of the air pump, the output end of the air pump is connected to the input end of the air outlet pipe, the output end of the air outlet pipe is connected to the input end of the third solenoid valve, and the output end of the third solenoid valve is connected to the input end of the gas mixing box.

[0009] As a further solution of the present invention: the output end of the oxygen tank is connected to the input end of the first solenoid valve, and the output end of the first solenoid valve is connected to the input end of the gas mixing box.

[0010] As a further solution of the present invention: the output end of the gas mixing box is connected to the input end of the second solenoid valve, the output end of the second solenoid valve is connected to the input end of the connector, and the output end of the connector is connected to the input end of the breathing tube.

[0011] As a further solution of the present invention: the output end of the inflation head is connected to the input end of the oxygen tank, and the stirring blade is rotated at an internal position of the gas mixing box by a motor.

[0012] As a further solution of the present invention: the output end of the oxygen content sensor is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the input ends of the air pump, the first solenoid valve, the second solenoid valve, the third solenoid valve, and the motor respectively.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model discloses an explosion-proof long-tube respirator for confined space operation. The respirator body is fixed to the back of the user by means of a first strap, a second strap, and a shoulder strap. The respirator body fits the back, thereby improving the portability of the long-tube respirator, facilitating use in confined spaces, and improving the flexibility of use of the long-tube respirator. All components are located inside the respirator body, thereby preventing component damage and achieving explosion-proof effect.

[0015] The oxygen tank is used to add oxygen to the interior of the gas mixing box to avoid the low oxygen content in the gas affecting the user's oxygen supply and improve the use effect of the long tube respirator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an explosion-proof long-tube respirator for confined space operations;

[0017] Figure 2 A perspective view of a respirator body in an explosion-proof long-tube respirator for confined space operations;

[0018] Figure 3 An explosion-proof long-tube respirator for confined space operations Figure 2 Schematic diagram of the structure of part A.

[0019] In the figure: 1. Respirator body; 2. Breathing tube; 3. First strap; 4. Second strap; 5. Shoulder strap; 6. Filter box; 7. Mixing box; 8. Protective box; 9. Oxygen tank; 10. First solenoid valve; 11. Second solenoid valve; 12. Connector; 13. Controller; 14. Air inlet net; 15. Filter net; 16. Oxygen content sensor; 17. Inflator head; 18. Exhaust pipe; 19. Air pump; 20. Exhaust pipe; 21. Third solenoid valve; 22. Stirring blade; 23. Motor. DETAILED DESCRIPTION

[0020] See also Figures 1 to 3In an embodiment of the present invention, an explosion-proof long-tube respirator for confined space operations includes a respirator body 1, a breathing tube 2, a first strap 3, a second strap 4, and a shoulder strap 5. The breathing tube 2 is located at the lower end of the respirator body 1, the first strap 3 is located at the upper end of the outer side of the respirator body 1, the second strap 4 is located at the lower end of the outer side of the respirator body 1, and the shoulder strap 5 is located at the front side of the respirator body 1. The respirator body 1 includes a filter box 6, a gas mixing box 7 is provided at the lower side of the filter box 6, a protective box 8 is provided at the lower side of the gas mixing box 7, an oxygen tank 9 is installed inside the filter box 6, and a first solenoid valve 10 is installed at the lower end of the oxygen tank 9. A second solenoid valve 11 is installed inside the protection box 8, and a connector 12 is provided at the lower end of the second solenoid valve 11. An exhaust pipe 18 is installed inside the filter box 6, and an air pump 19 is provided at one end of the exhaust pipe 18. A third solenoid valve 21 is installed on the upper side of the mixing box 7, and an outlet pipe 20 is provided at the upper end of the third solenoid valve 21. The interior of the filter box 6 is connected to the input end of the exhaust pipe 18, the output end of the exhaust pipe 18 is connected to the input end of the air pump 19, the output end of the air pump 19 is connected to the input end of the outlet pipe 20, the output end of the outlet pipe 20 is connected to the input end of the third solenoid valve 21, and the output end of the third solenoid valve 21 is connected to the The input end is connected, the output end of the oxygen tank 9 is connected to the input end of the first solenoid valve 10, the output end of the first solenoid valve 10 is connected to the input end of the mixing box 7, the output end of the mixing box 7 is connected to the input end of the second solenoid valve 11, the output end of the second solenoid valve 11 is connected to the input end of the connector 12, and the output end of the connector 12 is connected to the input end of the breathing tube 2. First, an explosion-proof long-tube respirator for confined space operations is carried to the use location, and oxygen is filled into the interior of the oxygen tank 9. Then, the respirator body 1 is carried on the back through the strap 5, the first strap 3 is tied to the chest, and the second strap 4 is tied to the abdomen. According to the needs of use One end of the breathing tube 2 is connected to the connector 12, and the other end of the breathing tube 2 is connected to the breathing mask. The air pump 19 is running, and the external air is filtered and enters the interior of the filter box 6. The gas inside the filter box 6 is introduced into the interior of the gas mixing box 7 through the exhaust pipe 18, the air pump 19, the outlet pipe 20 and the third solenoid valve 21. The gas inside the gas mixing box 7 is discharged through the second solenoid valve 11, the connector 12 and the breathing tube 2. The gas is supplied to the user for breathing, and the oxygen content inside the gas mixing box 7 is detected in real time. When the oxygen content is too low, the first solenoid valve 10 is opened, and the oxygen inside the oxygen tank 9 is introduced into the interior of the gas mixing box 7 through the first solenoid valve 10 to increase the oxygen content inside the gas mixing box 7.

[0021] exist Figure 2 、 3In the middle: a controller 13 is installed on one side of the protection box 8, an air intake net 14 is provided on the upper side of the filter box 6, a filter net 15 is provided at the upper end position of the interior of the filter box 6, an oxygen content sensor 16 is installed inside the mixing box 7, an inflating head 17 is installed on one side of the oxygen tank 9, a stirring blade 22 is provided inside the mixing box 7, a motor 23 is installed at the position of the stirring blade 22 on the upper side of the mixing box 7, the output end of the inflating head 17 is connected to the input end of the oxygen tank 9, and the stirring blade 22 is rotated at the internal position of the mixing box 7 by the motor 23. The output end of the oxygen content sensor 16 is electrically connected to the input end of the controller 13, and the output end of the controller 13 is electrically connected to the air pump 19, the first solenoid valve 10, the second solenoid valve 11, the third solenoid valve 21, and the input end of the motor 23. The gas head 17 fills oxygen into the interior of the oxygen tank 9, the air pump 19 runs, and the external gas enters the interior of the filter box 6 after being filtered by the air inlet net 14 and the filter net 15. The gas inside the filter box 6 is introduced into the interior of the mixing box 7 through the exhaust pipe 18, the air pump 19, the air outlet pipe 20 and the third solenoid valve 21. The gas inside the mixing box 7 is discharged through the second solenoid valve 11, the connector 12 and the breathing tube 2, and the gas is supplied to the user for breathing. The oxygen content sensor 16 detects the oxygen content inside the mixing box 7 in real time and transmits the detection data to the controller 13. When the controller 13 determines that the oxygen content is too low, it controls the first solenoid valve 10 to open, and the oxygen inside the oxygen tank 9 is introduced into the interior of the mixing box 7 through the first solenoid valve 10. The operation of the motor 23 drives the stirring blade 22 to rotate to stir the gas inside the mixing box 7.

[0022] The working principle of the present utility model is as follows: first, carry an explosion-proof long-tube respirator for confined space operation to the use location, fill oxygen into the interior of the oxygen tank 9 through the inflator head 17, then carry the respirator body 1 on the back through the shoulder strap 5, tie the first strap 3 to the chest, and the second strap 4 to the abdomen, according to the use needs, connect one end of the breathing tube 2 to the connector 12, and the other end of the breathing tube 2 to the breathing mask, and the air pump 19 is running. The external air passes through the air inlet net 14 and the filter net 15 and then enters the interior of the filter box 6. The gas inside the filter box 6 passes through the exhaust pipe 18 and the air pump 19. The gas in the gas mixing box 7 is introduced through the air outlet pipe 20 and the third solenoid valve 21. The gas in the gas mixing box 7 is discharged through the second solenoid valve 11, the connector 12 and the breathing tube 2, and the gas is supplied to the user for breathing. The oxygen content sensor 16 detects the oxygen content in the gas mixing box 7 in real time and transmits the detection data to the controller 13. When the controller 13 determines that the oxygen content is too low, it controls the first solenoid valve 10 to open, and the oxygen in the oxygen tank 9 is introduced into the interior of the gas mixing box 7 through the first solenoid valve 10. The operation of the motor 23 drives the stirring blade 22 to rotate, stirring the gas in the gas mixing box 7 and increasing the oxygen content in the gas mixing box 7.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An explosion-proof long-tube respirator for confined space operations, comprising a respirator body (1), a breathing tube (2), a first strap (3), a second strap (4), and a shoulder strap (5), wherein the breathing tube (2) is located at the lower end of the respirator body (1), the first strap (3) is located at the upper end of the outer side of the respirator body (1), the second strap (4) is located at the lower end of the outer side of the respirator body (1), and the shoulder strap (5) is located at the front side of the respirator body (1), characterized in that: The respirator body (1) includes a filter box (6), a gas mixing box (7) is provided on the lower side of the gas mixing box (6), a protection box (8) is provided on the lower side of the gas mixing box (7), an oxygen tank (9) is installed inside the filter box (6), a first solenoid valve (10) is installed at the lower end of the oxygen tank (9), a second solenoid valve (11) is installed inside the protection box (8), a connector (12) is provided at the lower end of the second solenoid valve (11), an exhaust pipe (18) is installed inside the filter box (6), an air pump (19) is provided at one end of the exhaust pipe (18), a third solenoid valve (21) is installed on the upper side of the gas mixing box (7), and an exhaust pipe (20) is provided at the upper end of the third solenoid valve (21).

2. The explosion-proof long tube respirator for confined space operations according to claim 1, characterized in that: A controller (13) is installed on one side of the protection box (8), an air inlet net (14) is provided on the upper side of the filter box (6), a filter net (15) is provided at the upper end of the filter box (6), an oxygen content sensor (16) is installed inside the gas mixing box (7), an aeration head (17) is installed on one side of the oxygen tank (9), a stirring blade (22) is provided inside the gas mixing box (7), and a motor (23) is installed on the upper side of the gas mixing box (7) at a position corresponding to the stirring blade (22).

3. The explosion-proof long tube respirator for confined space operation according to claim 1, characterized in that: The interior of the filter box (6) is connected to the input end of the air extraction pipe (18), the output end of the air extraction pipe (18) is connected to the input end of the air pump (19), the output end of the air pump (19) is connected to the input end of the air outlet pipe (20), the output end of the air outlet pipe (20) is connected to the input end of the third solenoid valve (21), and the output end of the third solenoid valve (21) is connected to the input end of the gas mixing box (7).

4. The explosion-proof long tube respirator for confined space operations according to claim 1, characterized in that: The output end of the oxygen tank (9) is connected to the input end of the first solenoid valve (10), and the output end of the first solenoid valve (10) is connected to the input end of the gas mixing box (7).

5. The explosion-proof long tube respirator for confined space operations according to claim 1, characterized in that: The output end of the gas mixing box (7) is connected to the input end of the second solenoid valve (11), the output end of the second solenoid valve (11) is connected to the input end of the connector (12), and the output end of the connector (12) is connected to the input end of the breathing tube (2).

6. The explosion-proof long tube respirator for confined space operations according to claim 2, characterized in that: The output end of the inflation head (17) is connected to the input end of the oxygen tank (9), and the stirring blade (22) is rotated at an internal position of the gas mixing box (7) by the motor (23).

7. The explosion-proof long tube respirator for confined space operations according to claim 2, characterized in that: The output end of the oxygen content sensor (16) is electrically connected to the input end of the controller (13), and the output end of the controller (13) is electrically connected to the input ends of the air pump (19), the first solenoid valve (10), the second solenoid valve (11), the third solenoid valve (21), and the motor (23).

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