Closable chemical oxygen respirator

Abstract

The invention discloses a closeable chemical oxygen respirator which comprises a breathing mask, an exhalation tube, an inhalation tube, an oxygen generation bin, an inner side ring sleeve, an outer side ring sleeve, a closed ring body and a movable closed assembly. When the oxygen generating device is normally worn, the use state of an oxygen generating agent can be adjusted, when a bottom floating plate moves downwards, a built-in exhaust pipe and a side air inlet pipe are driven to move downwards, an exhaust hole of the built-in exhaust pipe is made to move to the outer portion of the lower portion of the middle of an inner side ring sleeve, meanwhile, a sealing plate moves downwards and seals a through hole of an outer side ring sleeve, and the oxygen generating agent is used for generating oxygen. Therefore, the inner side ring sleeve and the outer side ring sleeve are both closed, and oxygen generating agent ventilation is not needed. When the bottom floating plate moves upwards, discharged carbon dioxide enters an oxygen generating agent through the exhaust hole of the built-in exhaust pipe, oxygen is input from the side air inlet pipe after being prepared, the use state of the oxygen generating agent is achieved, flexible adjustment can be conducted, use is convenient, and when oxygen generation is not needed, adjustment can be convenient, and the oxygen generating agent can be saved.

Description

Technical Field

[0001] The present invention belongs to the field of manufacturing of breathing apparatuses, and particularly relates to a closable chemical oxygen breathing apparatus. Background Art

[0002] A chemical oxygen self-rescue breathing apparatus for fire fighting is a personal respiratory protection device made based on the principle of generating oxygen by chemical agents, and is widely used in fire or other disaster environments, such as hotels, entertainment venues, office places, mines, and military equipment, etc. When the existing chemical oxygen breathing apparatus is in use, the exhaled carbon dioxide often reacts with the oxygen generating agent to obtain oxygen for the user to inhale, thus achieving a convenient use function. However, when in use, when the user temporarily does not need the breathing apparatus to generate oxygen due to a change in the external environment, the user cannot turn it off, and directly taking off the breathing apparatus will cause the disadvantage of inconvenient carrying. Therefore, the user generally wears it all the time. In this way, when the oxygen generating agent is not required to generate oxygen, the breathing apparatus still keeps generating oxygen continuously, which will cause additional waste of the oxygen generating agent and a relatively high use cost. Summary of the Invention

[0003] Aiming at the deficiencies of the above-mentioned prior art, the problem solved by the present invention is to provide a closable chemical oxygen breathing apparatus that can be conveniently opened and closed and effectively saves the oxygen generating agent.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: A closable chemical oxygen breathing apparatus, comprising a breathing mask, an exhalation tube, an inhalation tube, an oxygen generation chamber, an inner ring sleeve, an outer ring sleeve, a closed ring body, and a movable closing assembly; the oxygen generation chamber is installed below the breathing mask; the middle of the breathing mask is connected to the middle inside of the oxygen generation chamber through the inhalation tube, and both sides of the breathing mask are connected to the inside of both sides of the oxygen generation chamber through the inhalation tube; through holes are evenly formed in the inner ring sleeve and the outer ring sleeve; the inner ring sleeve and the outer ring sleeve are both installed in the oxygen generation chamber and are distributed inside and outside respectively, and the lower ends of the inner ring sleeve and the outer ring sleeve are fixedly connected to the closed ring body; the inner ring sleeve, the outer ring sleeve, and the closed ring body form an annular filling cavity, and an oxygen generating agent is filled in the annular filling cavity; the movable closing assembly includes a bottom floating plate, a built-in exhaust pipe, an internal telescopic pipe, a side air inlet pipe, a side telescopic pipe, and a closing plate; the built-in exhaust pipe is installed in the middle inside of the inner ring sleeve, exhaust holes are evenly formed around the middle of the built-in exhaust pipe, and the upper end of the built-in exhaust pipe is connected to the exhalation tube through the internal telescopic pipe; side air inlet pipes are respectively installed on both sides of the oxygen generation chamber, and the upper ends of the side air inlet pipes are connected to the inhalation tube through the side telescopic pipes; a closing plate is installed on the inner side above the side air inlet pipe, and the closing plate is fitted and installed on the outer side surface of the outer ring sleeve; the lower sides of the built-in exhaust pipe and the side air inlet pipe are both connected to the upper side of the bottom floating plate; the bottom floating plate is installed on the lower side of the oxygen generation chamber. When the bottom floating plate moves downward, it drives the built-in exhaust pipe and the side air inlet pipe to move downward, and makes the exhaust holes of the built-in exhaust pipe move to the outside below the middle of the inner ring sleeve. At the same time, the closing plate moves downward and closes the through holes of the outer ring sleeve; when the bottom floating plate moves upward, the bottom floating plate moves upward and abuts against the lower end of the oxygen generation chamber, and drives the built-in exhaust pipe and the side air inlet pipe to move upward, and makes the exhaust holes of the built-in exhaust pipe move to the middle inside of the inner ring sleeve. At the same time, the closing plate moves upward and disengages from the through holes of the outer ring sleeve.

[0005] Further, a sealing ring is provided around the inner side of the closed ring body; the outer side around the built-in exhaust pipe is in sealing contact with the sealing ring.

[0006] Further, the middle of the lower end of the built-in exhaust pipe is connected to the middle upper side of the bottom floating plate through a positioning block; a radial connecting column is provided at the lower end of the side air inlet pipe, and the middle of the lower side of the radial connecting column is connected to the upper end side of the bottom floating plate through a longitudinal guide rod.

[0007] Further, the lower end of the built-in exhaust pipe is closed; the lower end of the side air inlet pipe is open.

[0008] Further, floating blocks are respectively connected above both sides of the bottom floating plate through upward extension rods; floating tracks are respectively arranged on both inner sides of the oxygen generation chamber; the floating blocks are respectively installed to slide up and down in the floating tracks; lead screws are respectively rotatably connected in the floating tracks, the lead screws are threadedly connected with the floating blocks, the upper ends of the lead screws are respectively connected with control motors, and the control motors drive the lead screws to rotate forward and backward; a controller is arranged on one side of the oxygen generation chamber, and the controller is connected with the two control motors.

[0009] Further, the upper ends of both the inner ring sleeve and the outer ring sleeve are connected to the inner upper side wall of the oxygen generation chamber.

[0010] Further, a plurality of through holes are evenly formed around the inner circumference of the inner ring sleeve; a plurality of through holes are evenly formed around the lower end of the outer ring sleeve.

[0011] Further, an exhaust check valve is arranged on the exhalation pipe; an intake check valve is arranged on the inhalation pipe.

[0012] The beneficial effects of the present invention are as follows: The present invention can adjust the use state of the oxygen generation agent during normal wearing. When the bottom floating plate moves downward, it drives the built-in exhaust pipe and the side intake pipe to move downward, and makes the exhaust holes of the built-in exhaust pipe move to the outside below the middle of the inner ring sleeve. At the same time, the closing plate moves downward and closes the through holes of the outer ring sleeve. In this way, both the inner ring sleeve and the outer ring sleeve are closed, and the discharged carbon dioxide and the inhaled oxygen are both communicated with the outside and do not need to pass through the oxygen generation agent; when the bottom floating plate moves upward, the bottom floating plate moves upward to close and abut against the lower end of the oxygen generation chamber, and drives the built-in exhaust pipe and the side intake pipe to move upward, and makes the exhaust holes of the built-in exhaust pipe move to the inside of the middle of the inner ring sleeve. At the same time, the closing plate moves upward to separate from the through holes of the outer ring sleeve. In this way, the discharged carbon dioxide will enter the oxygen generation agent through the exhaust holes of the built-in exhaust pipe, and after being made into oxygen, it is input from the side intake pipe, realizing the use state of the oxygen generation agent. In this way, flexible adjustment can be carried out, which is convenient to use. When oxygen generation is not required, convenient adjustment can be carried out to save the oxygen generation agent. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the present invention in the oxygen generation state of the oxygen generation agent.

[0014] Figure 2 It is a schematic structural diagram of the present invention in the state where the oxygen generation agent does not generate oxygen.

[0015] Figure 3 For the present invention Figure 1 is an enlarged structural schematic diagram.

[0016] Figure 4 For the present invention Figure 2 is an enlarged structural schematic diagram.

[0017] Figure 5 For the present invention Figure 3 Schematic diagram of a partial enlarged structure on one side.

[0018] Figure 6 For the present invention Figure 4 Schematic diagram of a partial enlarged structure on one side. Specific embodiments

[0019] The following further elaborates on the content of the present invention in conjunction with the accompanying drawings.

[0020] As Figures 1 to 6 shown, a closable chemical oxygen respirator includes a breathing mask 1, an exhalation tube 2, an inhalation tube 3, an oxygen generation chamber 4, an inner ring sleeve 5, an outer ring sleeve 6, a sealing ring body 7, and a movable sealing assembly 8; the oxygen generation chamber 4 is installed below the breathing mask 1; the middle of the breathing mask 1 is connected to the middle inside of the oxygen generation chamber 4 through the inhalation tube 3, and both sides of the breathing mask 1 are connected to the inside of both sides of the oxygen generation chamber 4 through the inhalation tube 3; through holes 99 are evenly formed in the inner ring sleeve 5 and the outer ring sleeve 6; the inner ring sleeve 5 and the outer ring sleeve 6 are both installed in the oxygen generation chamber 4 and are distributed inside and outside respectively, and the lower ends of the inner ring sleeve 5 and the outer ring sleeve 6 are fixedly connected to the sealing ring body 7; the inner ring sleeve 5, the outer ring sleeve 6, and the sealing ring body 7 form an annular filling cavity 98, and an oxygen generating agent 97 is filled in the annular filling cavity 98; the movable sealing assembly 8 includes a bottom floating plate 81, an internal exhaust pipe 82, an internal telescopic pipe 83, a side air inlet pipe 84, a side telescopic pipe 85, and a sealing plate 86; the internal exhaust pipe 82 is installed in the middle inside of the inner ring sleeve 5, exhaust holes 821 are evenly formed around the middle of the internal exhaust pipe 82, and the upper end of the internal exhaust pipe 82 is connected to the exhalation tube 2 through the internal telescopic pipe 83; side air inlet pipes 84 are respectively installed on both sides of the oxygen generation chamber 4, and the upper ends of the side air inlet pipes 84 are connected to the inhalation tube 3 through the side telescopic pipes 85; a sealing plate 86 is installed on the inner side above the side air inlet pipe 84, and the sealing plate 86 is fitted and installed on the outer side surface of the outer ring sleeve 6; the lower sides of the internal exhaust pipe 82 and the side air inlet pipe 84 are both connected to the upper side of the bottom floating plate 81; the bottom floating plate 81 is installed on the lower side of the oxygen generation chamber 4. When the bottom floating plate 81 moves downward, it drives the internal exhaust pipe 82 and the side air inlet pipe 84 to move downward, and makes the exhaust holes 821 of the internal exhaust pipe 82 move to the outside below the middle of the inner ring sleeve 5. At the same time, the sealing plate 86 moves downward and closes the through holes 99 of the outer ring sleeve 6; when the bottom floating plate 81 moves upward, the bottom floating plate 81 moves upward and abuts against the lower end of the oxygen generation chamber 4, and drives the internal exhaust pipe 82 and the side air inlet pipe 84 to move upward, and makes the exhaust holes 821 of the internal exhaust pipe 82 move to the inside of the middle of the inner ring sleeve 5. At the same time, the sealing plate 86 moves upward and disengages from the through holes 99 of the outer ring sleeve 6.

[0021] AsFigures 1 to 6 As shown, in order to keep the built-in exhaust pipe 82 and the closed ring body 7 airtight, further, a sealing ring 71 is provided around the inner side of the closed ring body 7; the outer side around the built-in exhaust pipe 82 is in sealing contact with the sealing ring 71.

[0022] As Figures 1 to 6 As shown, in order to facilitate the bottom floating plate 81 to drive the built-in exhaust pipe 82 and the side air inlet pipe 84 to move up and down to realize the oxygen production or closed storage of the oxygen generating agent 97, further, the middle of the lower end of the built-in exhaust pipe 82 is connected to the middle of the upper side of the bottom floating plate 81 through a positioning block 822; a radial connecting column 841 is provided at the lower end of the side air inlet pipe 84, and the middle of the lower side of the radial connecting column 841 is connected to the upper end side of the bottom floating plate 81 through a longitudinal guide rod 842. Further, the lower end of the built-in exhaust pipe 82 is closed; the lower end of the side air inlet pipe 84 is open.

[0023] As Figures 1 to 6 As shown, in order to facilitate the control of the up and down movement of the bottom floating plate 81, further, floating blocks 812 are respectively connected to the upper sides of both sides of the bottom floating plate 81 through upper extension rods 811; floating tracks 41 are respectively provided on both sides inside the oxygen production chamber 4; the floating blocks 812 are respectively slidably installed up and down in the floating tracks 41; lead screws 411 are respectively rotatably connected in the floating tracks 41, the lead screws 411 are threadedly connected to the floating blocks 812, and the upper ends of the lead screws 411 are respectively connected to control motors 9, and the control motors 9 drive the lead screws 411 to rotate forward and backward; a controller 10 is provided on one side of the oxygen production chamber 4, and the controller 10 is connected to the two control motors 9. Further, the upper ends of the inner ring sleeve 5 and the outer ring sleeve 6 are both connected to the inner upper side wall of the oxygen production chamber 4. Further, a plurality of through holes 99 are evenly opened around the inner side of the inner ring sleeve 5; a plurality of through holes 99 are evenly opened around the lower end of the outer ring sleeve 6. Further, an exhaust check valve 21 is provided on the exhalation pipe 2; an intake check valve 31 is provided on the inhalation pipe 3.

[0024] The present invention can adjust the usage state of the oxygen generator 97 during normal wearing. When the bottom floating plate 81 moves downward, it drives the built-in exhaust pipe 82 and the side intake pipe 84 to move downward, and makes the exhaust hole 821 of the built-in exhaust pipe 82 move to the outside below the middle of the inner ring sleeve 5. At the same time, the closing plate 86 moves downward and closes the through hole 99 of the outer ring sleeve 6. In this way, both the inner ring sleeve 5 and the outer ring sleeve 6 are closed, and the discharged carbon dioxide and the inhaled oxygen are both communicated with the outside and do not need to pass through the oxygen generator 97. When the bottom floating plate 81 moves upward, the bottom floating plate 81 moves upward to close and abut against the lower end of the oxygen generation chamber 4, and drives the built-in exhaust pipe 82 and the side intake pipe 84 to move upward, and makes the exhaust hole 821 of the built-in exhaust pipe 82 move to the inside of the middle of the inner ring sleeve 5. At the same time, the closing plate 86 moves upward to disengage from the through hole 99 of the outer ring sleeve 6. In this way, the discharged carbon dioxide will enter the oxygen generator 97 through the exhaust hole 821 of the built-in exhaust pipe 82, and after being made into oxygen, it is input from the side intake pipe 84, realizing the usage state of the oxygen generator 97. In this way, flexible adjustment can be carried out, which is convenient to use. When oxygen generation is not required, convenient adjustment can be carried out to save the oxygen generator 97.

[0025] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealable chemical oxygen respirator, characterized in that: The invention comprises a breathing mask, an exhalation tube, an inhalation tube, an oxygen making chamber, an inner ring sleeve, an outer ring sleeve, a closed ring body and a movable closed assembly; the oxygen making chamber is installed below the breathing mask; the middle of the breathing mask is connected to the middle inner part of the oxygen making chamber through an inhalation tube, and the two sides of the breathing mask are connected to the inner parts of the two sides of the oxygen making chamber through inhalation tubes; through holes are evenly arranged on the inner ring sleeve and the outer ring sleeve; the inner ring sleeve and the outer ring sleeve are both installed in the oxygen making chamber and are respectively distributed inside and outside, and the lower ends of the inner ring sleeve and the outer ring sleeve are fixedly connected to the closed ring body; the inner ring sleeve, the outer ring sleeve and the closed ring body constitute an annular filling cavity, and the annular filling cavity is filled with oxygen-generating agent; the movable closed assembly comprises a bottom floating plate, a built-in exhaust pipe, an internal telescopic pipe, a side air inlet pipe, a side telescopic pipe and a closed plate; the built-in exhaust pipe is installed in the middle inner part of the inner ring sleeve, exhaust holes are evenly arranged around the middle of the built-in exhaust pipe, and the upper end of the built-in exhaust pipe is through The internal telescopic tube is connected to the exhalation tube; side air inlet pipes are respectively installed on both sides of the oxygen making bin, and the upper ends of the side air inlet pipes are connected to the suction pipe through the side telescopic tubes; a closing plate is installed on the inner side of the upper part of the side air inlet pipe, and the closing plate is fitted and installed on the outer surface of the outer ring sleeve; the lower part of the built-in exhaust pipe and the lower part of the side air inlet pipe are both connected to the upper side of the bottom floating plate; the bottom floating plate is installed on the lower side of the oxygen making bin, and when the bottom floating plate moves downward, it drives the built-in exhaust pipe and the side air inlet pipe to move downward, and makes the exhaust hole of the built-in exhaust pipe move to the middle and lower outside of the inner ring sleeve, and at the same time the closing plate moves downward and closes the through hole of the outer ring sleeve; when the bottom floating plate moves upward, the bottom floating plate is closed and abuts against the lower end of the oxygen making bin, and drives the built-in exhaust pipe and the side air inlet pipe to move upward, and makes the exhaust hole of the built-in exhaust pipe move to the middle and inner part of the inner ring sleeve, and at the same time the closing plate moves upward to separate from the through hole of the outer ring sleeve.

2. The sealable chemical oxygen respirator according to claim 1, characterized in that: The inner periphery of the closed ring body is provided with a sealing ring; the outer periphery of the built-in exhaust pipe is in sealing contact with the sealing ring.

3. The sealable chemical oxygen respirator according to claim 1, characterized in that: The middle of the lower end of the built-in exhaust pipe is connected to the middle of the upper side of the bottom floating plate through a positioning block; the lower end of the side air intake pipe is provided with a radial connecting column, and the middle of the lower side of the radial connecting column is connected to the upper end side of the bottom floating plate through a longitudinal guide rod.

4. The sealable chemical oxygen respirator according to claim 1, characterized in that: The lower end of the built-in exhaust pipe is closed; the lower end of the side air intake pipe is open.

5. The sealable chemical oxygen respirator according to claim 1, characterized in that: Floating blocks are respectively connected to the upper sides of the two sides of the bottom floating plate through upper extension rods; floating tracks are respectively provided on the two sides inside the oxygen production bin; floating blocks are respectively installed in the floating tracks for sliding up and down; screw rods are respectively rotatably connected in the floating tracks, the screw rods are threadedly screwed to the floating blocks, and the upper ends of the screw rods are respectively connected to control motors, which drive the screw rods to rotate forward and reversely; a controller is provided on one side of the oxygen production bin, and the controller is connected to two control motors.

6. The sealable chemical oxygen respirator according to claim 1, characterized in that: The upper ends of the inner ring sleeve and the outer ring sleeve are both connected to the inner upper side wall of the oxygen production bin.

7. The sealable chemical oxygen respirator according to claim 1, characterized in that: A plurality of through holes are evenly arranged around the inner side of the inner ring sleeve; a plurality of through holes are evenly arranged around the lower end of the outer ring sleeve.

8. The sealable chemical oxygen respirator according to claim 1, characterized in that: The exhalation pipe is provided with an exhaust one-way valve; the inhalation pipe is provided with an intake one-way valve.

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