Emergency oxygen supply device

Abstract

The emergency oxygen supply device comprises a rectangular box body, an opening is formed in one of the left side and the right side of the box body, vertical sliding grooves are formed in the two sides of the opening respectively, sealing plates are inserted into the sliding grooves, a plurality of transverse partition plates are fixedly installed in an inner cavity of the box body, and an air inlet cavity is formed between the bottom of the inner cavity of the box body and the partition plates. Exhaust cavities are formed between the top of an inner cavity of the box body and the partition plates, reaction chambers are formed between the adjacent partition plates, medicine plates containing potassium superoxide components are placed in the reaction chambers, a plurality of vertically-through round holes are distributed in the partition plates, a fan blowing air to an air inlet cavity is installed on the side face of the box body, and an air inlet valve is installed at the outer end of the fan. The air channel can be opened by rotating the rotary cover, the fan is started synchronously, the fan blows air to the air inlet cavity through the opened air channel, and the rotating speed of the fan changes in a positive correlation mode along with the size of the air channel, so that the speed of oxygen generation through reaction can be controlled by controlling the air inlet speed, and waste of medicine plates can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency equipment, in particular to an emergency oxygen supply device. Background Art

[0002] Coal mine accidents seriously affect the safety of miners' lives and property, and have extremely bad social impacts. Therefore, strengthening underground communications, solving coal mine safety hazards, and saving more lives in time when underground operations are dangerous have become urgent issues to be solved. Emergency oxygen supply devices provide oxygen to miners when an accident occurs underground, providing enough time for rescue. Potassium superoxide is a yellow powder that reacts with water and carbon dioxide to generate oxygen. It is often used for underground emergencies. At present, when this type of box-type oxygen supply device is used, there is a problem of difficulty in controlling the reaction rate. The reaction rate of the oxygen supply device is very important for underground emergency use, because when the rescue time is unknown, it is necessary to minimize oxygen waste and extend the use time. Utility Model Content

[0003] The purpose of the utility model is to provide an emergency oxygen supply device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an emergency oxygen supply device, comprising a rectangular box, a handle is hingedly installed on the upper part of the box, one of the left and right sides of the box is open and vertical slide grooves are respectively arranged on both sides of the open, a sealing plate is inserted in the slide groove, a plurality of horizontal partitions are fixedly installed on the inner cavity of the box, an air inlet cavity is formed between the bottom of the inner cavity of the box and the partition, an exhaust cavity is formed between the top of the inner cavity of the box and the partition, a reaction chamber is formed between adjacent partitions, a medicine plate containing potassium superoxide is placed in the reaction chamber, a plurality of circular holes are distributed on the partition that penetrate up and down, a fan for blowing air into the air inlet cavity is installed on the side of the box, and an air inlet valve is installed on the outer end of the fan;

[0005] The air inlet valve includes a cylinder with an open rear end and a rotary cover. The rotary cover is sleeved on the front of the cylinder. A plurality of evenly distributed fan-shaped holes are arranged along the circumference of the front of the cylinder and the rotary cover. The rotary cover rotates relative to the cylinder to adjust the size of the airway formed between the front and rear fan-shaped holes. A knob speed control switch is installed at the center between the cylinder and the rotary cover. The knob speed control switch controls the start and stop and speed regulation of the fan. The speed of the fan is positively correlated with the size of the airway.

[0006] Preferably, an air outlet communicating with the exhaust chamber is provided at the upper portion of the box body, and a sealed end cover is screwed onto the air outlet.

[0007] Preferably, a battery compartment for powering the fan is installed on the outer side of the box.

[0008] Compared with the prior art, the utility model has the following beneficial effects: when in urgent use, the airway can be opened by rotating the rotary cover, and the fan can be started synchronously. The fan blows air into the air inlet cavity through the opened airway, and the speed of the fan changes positively correlated with the size of the airway. Therefore, the rate at which oxygen is generated by the reaction can be controlled by controlling the air intake rate, which is beneficial to reducing the waste of medicine plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0010] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0011] Figure 3 This is a schematic cross-sectional view of the air inlet valve of the utility model;

[0012] Figure 4 It is a three-dimensional structural schematic diagram of the air inlet valve of the utility model.

[0013] In the figure: 1. Box body; 2. Partition; 3. Air inlet chamber; 4. Reaction chamber; 5. Medicine plate; 6. Exhaust chamber; 7. Handle; 8. Air outlet; 9. Air inlet valve; 91. Cylinder; 92. Screw cover; 93. Fan-shaped hole; 94. Knob speed control switch; 10. Fan; 11. Closing plate. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0015] See also Figure 1-4 The utility model provides a technical solution: an emergency oxygen supply device, including a rectangular box 1, a handle 7 is hingedly installed on the upper part of the box 1, one of the left and right sides of the box 1 is open and both sides of the open are respectively provided with vertical slide grooves, and a sealing plate 11 is inserted in the slide groove. The inner cavity of the box 1 is fixedly installed with a plurality of horizontal partitions 2, an air inlet cavity 3 is formed between the bottom of the inner cavity of the box 1 and the partition 2, an exhaust cavity 6 is formed between the top of the inner cavity of the box 1 and the partition 2, and an air outlet 8 connected to the exhaust cavity 6 is provided on the upper part of the box 1, and a sealed end cover is screwed on the air outlet 8, and the air outlet 8 is used to discharge the generated oxygen, and the air outlet 8 can be used to connect an oxygen inhalation mask.

[0016] A reaction chamber 4 is formed between adjacent partitions 2, and a medicine plate 5 containing potassium superoxide is placed in the reaction chamber 4. After the sealing plate 11 is pulled out, the medicine plate 5 can be loaded and replaced into the reaction chamber. A plurality of circular holes are distributed on the partition 2 and penetrate through the partition 2 from top to bottom. A fan 10 for blowing air into the air inlet cavity 3 is installed on the side of the box body 1, and an air inlet valve 9 is installed on the outer end of the fan 10.

[0017] The air inlet valve 9 includes a cylinder 91 with an open rear end and a rotary cover 92. The rotary cover 92 is sleeved on the front of the cylinder 91. The front of the cylinder 91 and the rotary cover 92 are provided with a plurality of evenly distributed fan-shaped holes 93 along the circumference. The rotary cover 92 rotates relative to the cylinder 91 to adjust the size of the airway formed between the front and rear fan-shaped holes 93. When the front and rear fan-shaped holes 93 are completely staggered, isolation and blocking are achieved, and a rubber strip is provided for sealing. A knob speed control switch 94 is installed at the center between the cylinder 91 and the rotary cover 92. The knob speed control switch 94 controls the start and stop and speed regulation of the fan 10. The speed of the fan 10 is positively correlated with the size of the airway. A battery compartment for powering the fan 10 is installed on the outside of the box 1. When the rotary cover 92 is turned to open the airway, the knob speed control switch 94 is turned synchronously, and the airway and the fan 10 are opened synchronously.

[0018] Working principle: When used in an emergency, the airway can be opened by turning the rotary cover 92, and the fan 10 is started synchronously. The fan blows air into the air inlet cavity 3 through the opened airway. The speed of the fan 10 changes in direct correlation with the size of the airway. The carbon dioxide in the intake air reacts with the medicine plate 5 to generate oxygen which is discharged from the air outlet 8.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An emergency oxygen supply device, comprising a rectangular box (1), a handle (7) being hingedly mounted on the upper portion of the box (1), one of the left and right sides of the box (1) being open and both sides of the open opening being respectively provided with vertical slide grooves, a sealing plate (11) being inserted into the slide groove, characterized in that: The inner cavity of the box (1) is fixedly provided with a plurality of transverse partitions (2); an air inlet cavity (3) is formed between the bottom of the inner cavity of the box (1) and the partition (2); an exhaust cavity (6) is formed between the top of the inner cavity of the box (1) and the partition (2); a reaction chamber (4) is formed between adjacent partitions (2); a medicine plate (5) containing potassium superoxide is placed in the reaction chamber (4); a plurality of circular holes extending vertically through the partition (2); a fan (10) for blowing air into the air inlet cavity (3) is installed on the side of the box (1); an air inlet valve (9) is installed at the outer end of the fan (10); The air inlet valve (9) comprises a cylinder (91) with an open rear end and a rotary cover (92), wherein the rotary cover (92) is sleeved on the front part of the cylinder (91), and a plurality of evenly distributed fan-shaped holes (93) are arranged along the circumference of the front parts of the cylinder (91) and the rotary cover (92), and the rotary cover (92) is rotated relative to the cylinder (91) to adjust the size of the air passage formed between the front and rear fan-shaped holes (93), and a knob speed regulating switch (94) is installed at the center between the cylinder (91) and the rotary cover (92), and the knob speed regulating switch (94) controls the start and stop and speed regulation of the fan (10), and the speed of the fan (10) is positively correlated with the size of the air passage.

2. An emergency oxygen supply device according to claim 1, characterized in that: The upper part of the box body (1) is provided with an air outlet (8) which is in communication with the exhaust chamber (6), and a sealed end cover is screwed onto the air outlet (8).

3. An emergency oxygen supply device according to claim 1, characterized in that: A battery compartment for supplying power to the fan (10) is installed on the outer side of the box (1).

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