CN217961034U

CN217961034U - Pressure stabilization type pressure reducer for air respirator

Info

Publication number: CN217961034U
Application number: CN202221740635.1U
Authority: CN
Inventors: 袁真; 朱林山; 王亚丰; 朱湘华
Original assignee: Hunan Huijin Police Equipment Co ltd
Current assignee: Hunan Huijin Police Equipment Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-12-06
Anticipated expiration: 2032-07-07

Abstract

The utility model relates to a gas pressure reducer field discloses a pressure stability type pressure reducer for air respirator, which comprises a housin, casing one end fixedly connected with intake pipe, the inside sliding connection of intake pipe has first piston, the spacing spring of first piston one end fixedly connected with, spacing spring one end fixedly connected with spring mounting, spring mounting one side fixed connection is in first sealing washer one end, first piston one end fixedly connected with transfer line, the transfer line middle part is provided with the ejector pad, ejector pad one side is provided with the diversion and presss from both sides, second piston circumferential edge sliding connection is at second sealing washer middle part, second sealing washer circumferential edge is provided with the gas-supply pipe, gas-supply pipe one end fixed connection is in the casing upper end. The utility model discloses in, when the user breathed in, gap cooperation air vent was opened for the user supplies with the air to first piston and second piston, has guaranteed the stability of pressure reducer, and the pressure reducer of being convenient for is installed on air respirator.

Description

Pressure stabilization type pressure reducer for air respirator

Technical Field

The utility model relates to a gas pressure reducer field especially relates to a pressure stability type pressure reducer for air respirator.

Background

Often use in fire-fighting equipment and take air respirator, air respirator can prevent that fire fighter from inhaling a large amount of dense smoke, fire fighter's personal safety has been guaranteed, air respirator can deliver oxygen for fire fighter, isolated a large amount of dense smoke simultaneously, can use the pressure reducer on air respirator, because can compress a large amount of oxygen in the gas cylinder, these hyperbaric oxygen can not directly inhale for fire fighter, pressure too can let fire fighter breathe not in the same direction, so need be equipped with the pressure reducer in air respirator, pressure reduction when can letting the high-pressure gas output in the gas cylinder, let fire fighter in time inhale.

Currently available stress-reducers have two disadvantages when used: firstly, current pressure reducer pressure is unstable, has leaded to air respirator to use inconveniently, secondly the pressure reducer installation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a pressure stabilization type pressure reducer for an air respirator.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a pressure stability type pressure reducer for air respirator, includes the casing, casing one end fixedly connected with intake pipe, the inside sliding connection of intake pipe has first piston, the spacing spring of first piston one end fixedly connected with, spacing spring one end fixedly connected with spring mounting, spring mounting one side fixed connection is in first sealing washer one end, first piston one end fixedly connected with transfer line, the transfer line middle part is provided with the ejector pad, ejector pad one side is provided with the diversion and presss from both sides, the diversion presss from both sides the open end and is provided with the connecting rod, connecting rod one end fixed connection is in second piston one end, second piston circumferential edge sliding connection is at second sealing washer middle part, second sealing washer circumferential edge is provided with the gas-supply pipe, gas-supply pipe one end fixed connection is in the casing upper end.

As a further description of the above technical solution:

the middle part of the transmission rod penetrates through and is connected with the first sealing ring in a sliding mode, and the other end of the transmission rod is fixedly connected with a transmission mechanism.

As a further description of the above technical solution:

drive mechanism includes driven plate, installation shell, first pivot, stopper, driving plate, second pivot, installation shell one side fixed connection is inside the casing, the inside first pivot that is provided with of installation shell, two stoppers of first pivot circumference surface fixedly connected with, first pivot circumference surface fixedly connected with driving plate, driving plate one end fixed connection is in driving rod one end, the driving plate other end is provided with the second pivot, second pivot circumference surface fixedly connected with driven plate, driven plate one end sets up and presss from both sides one side at the diversion.

As a further description of the above technical solution:

the turning clamp is characterized in that a turning spring is arranged at the lower end of the turning clamp, a steel wire rope is arranged at the opening end of the turning clamp, and the middle of the steel wire rope is fixedly connected to the bottom end of the connecting rod.

As a further description of the above technical solution:

both ends of the turning clamp are fixedly connected inside the mounting frame, one end of the mounting frame is fixedly connected to the inner wall of the shell, and the other end of the mounting frame is fixedly connected to one side of the first sealing ring.

As a further description of the above technical solution:

a plurality of first air vents are formed in the first sealing ring, and a plurality of second air vents are formed in the second sealing ring.

As a further description of the above technical solution:

the circumferential surfaces of the air inlet pipe and the air delivery pipe are provided with thread lines.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, at first inside first sealing washer and the second sealing washer of being provided with of casing, all be provided with the air vent on first sealing washer and the second sealing washer, when the user does not breathe in, the sealing washer has guaranteed with the air vent that the inside atmospheric pressure of pressure reducer is stable, and when the user breathes in, gap cooperation air vent is opened with the second piston to first piston for the user supplies with the air, has guaranteed the stability of pressure reducer.

2. The utility model discloses in, through the thread line that sets up on intake pipe and the gas-supply pipe, twist the intake pipe of pressure reducer through the thread line and install the output at air respirator before using air respirator, will twist on the gas-supply pipe through the thread line with the breathing pipe of user contact soon, the pressure reducer of being convenient for is installed on air respirator.

Drawings

FIG. 1 is a front sectional view of a pressure-stabilized pressure reducer for an air respirator in accordance with the present invention;

fig. 2 is a front perspective view of a pressure-stabilized pressure reducer for an air respirator according to the present invention;

fig. 3 is a schematic front view of a transmission mechanism of a pressure-stabilized pressure reducer for an air respirator, which is provided by the present invention;

fig. 4 is a schematic view of a first piston of the pressure-stabilized pressure reducer for an air respirator according to the present invention.

Illustration of the drawings:

1. a housing; 2. an air inlet pipe; 3. a first piston; 4. a limiting spring; 5. a spring mount; 6. a first seal ring; 601. a first vent hole; 7. a transmission rod; 8. a push block; 9. a turning clamp; 10. a wire rope; 11. a mounting frame; 12. a connecting rod; 13. a second piston; 14. a transmission mechanism; 1401. a driven plate; 1402. mounting a shell; 1403. a first rotating shaft; 1404. a limiting block; 1405. a drive plate; 1406. a second rotating shaft; 15. a gas delivery pipe; 16. a second seal ring; 1601. a second vent hole; 17. a direction-changing spring; 18. a thread path.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a pressure stability type pressure reducer for air respirator, which comprises a

housin

1, 1 one end fixedly connected with intake pipe 2 of casing, 2 inside sliding connection of intake pipe has

first piston

3, 3 one end fixedly connected with spacing spring 4 of first piston, when using the pressure reducer, the inside atmospheric pressure value of pressure reducer is invariable, first piston 3 seals the output of air respirator, when the user begins to breathe in, the inside air of pressure reducer is absorbed by the user and has broken the internal balance of pressure reducer, the air in the air respirator is with first piston 3 jack-up, first piston 3 extrudees spacing spring 4, spacing spring 4 one end fixedly connected with spring mounting 5, 5 one side fixed connection of spring mounting is in 6 one end of first sealing washer, 3 one end fixedly connected with transfer line 7 of first piston, the transfer line 7 middle part is provided with ejector pad 8, ejector pad 8 one side is provided with turning clamp 9, first piston 3 promotes turning drive line 7 and moves to turning clamp 9, turning clamp 9 open end is provided with connecting rod 12, connecting rod 12 one end fixed connection is in second piston 13 one end, second piston 13 moves along with the removal of connecting rod 12, second piston 13 sliding connection is at 16 middle part of second sealing washer, second piston is provided with the edge fixed connection of turning clamp 15 on the second sealing washer, second piston 15 is followed second piston edge seam production seam between the second piston edge 15 and the second piston edge seam production gas pipe 15, second piston ring is followed second piston edge seam production seam between the second piston edge.

The middle of the transmission rod 7 penetrates through and is connected with the first sealing ring 6 in a sliding mode, the other end of the transmission rod 7 is fixedly connected with a transmission mechanism 14, the transmission mechanism 14 comprises a driven plate 1401, an installation shell 1402, a first rotating shaft 1403, limiting blocks 1404, a transmission plate 1405 and a second rotating shaft 1406, one side of the installation shell 1402 is fixedly connected inside the shell 1, the first rotating shaft 1403 is arranged inside the installation shell 1402, the circumferential surface of the first rotating shaft 1403 is fixedly connected with the two limiting blocks 1404, the circumferential surface of the first rotating shaft 1403 is fixedly connected with the transmission plate 1405, one end of the transmission plate 1405 is fixedly connected with one end of the transmission rod 7, the other end of the transmission plate 1405 is provided with the second rotating shaft 1406, the circumferential surface of the second rotating shaft 1406 is fixedly connected with the driven plate 1401, one end of the driven plate 1401 is arranged on one side of the diversion clamp 9, one end of the transmission rod 7 extrudes the transmission plate 1405, the other end of the transmission plate is enabled to tilt and drive the driven plate 1401 to move towards the diversion clamp 9, a pushing block 8 and the driven plate 1401 on the transmission rod 7 and the driven plate 1401 are enabled to extrude the lower end of the diversion clamp 9 at the same time, the lower end of the diversion clamp 9 and the lower end of the diversion clamp 9 is extruded, and the upper end of the diversion clamp is opened through the spring 17.

The air breathing device is characterized in that a steel wire rope 10 is arranged at the open end of a diversion clamp 9, when the open end of the diversion clamp 9 is opened, the steel wire rope 10 is straightened, the middle of the steel wire rope 10 is fixedly connected to the bottom end of a connecting rod 12, the steel wire rope 10 is straightened to enable the connecting rod 12 to be bounced, the two ends of the diversion clamp 9 are fixedly connected to the inside of a mounting frame 11, one end of the mounting frame 11 is fixedly connected to the inner wall of a shell 1, the other end of the mounting frame 11 is fixedly connected to one side of a first sealing ring 6, the diversion clamp 9 is mounted inside the shell 1 through the mounting frame 11, the two ends of the diversion clamp 9 are fixed through the mounting frame 11, the diversion clamp 9 is prevented from overturning in use, a plurality of first vent holes 601 are formed in the first sealing ring 6, a plurality of second vent holes 1601 are formed in a second sealing ring 16, the steel wire rope 10 jacks up the connecting rod 12, a gap is formed between the second piston 13 and the second sealing ring 16, air flows out of the air conveying pipe 15 through the first vent holes 601, the second vent holes 1601 and the gap between the second piston 13 and the second sealing ring 16, the air conveying pipe 15, threads 18 are arranged on the circumferential surfaces of the air inlet pipe 2, and the air breathing pipe 15, and the output end of the air breathing pipe is in contact with a user through the user by screwing the screw thread 18 before the air breathing pipe 15.

The working principle is as follows: before the air respirator is used, an air inlet pipe 2 of a pressure reducer is screwed and installed at the output end of the air respirator through a thread line 18, an air suction pipe in contact with a user is screwed and installed on an air conveying pipe 15 through the thread line 18, when the pressure reducer is used, the air pressure value inside the pressure reducer is constant, the output end of the air respirator is sealed by a first piston 3, when the user starts to suck air, the internal balance of the pressure reducer is broken through the suction of the air inside the pressure reducer by the user, the first piston 3 is jacked up by the air inside the air respirator, the limiting spring 4 is extruded by the first piston 3, the air enters the pressure reducer through a gap between the first piston 3 and the air inlet pipe 2, the diversion piston 3 pushes a transmission rod 7 to move towards a diversion clamp 9, one end of the transmission rod 7 extrudes a transmission plate 1405, the other end of the transmission plate 1405 is tilted to drive a driven plate 1401 to move towards the diversion clamp 9, the lower end of the diversion clamp 9 is simultaneously extruded by the push block 8 and the driven plate 1401 on the transmission rod 7, the lower end of the diversion clamp 9 is extruded, the upper end of the diversion clamp 9 is opened through the diversion spring 17, the connecting rod 12 is jacked up by the steel wire rope 10, a gap is generated between the jacked second piston 13 and the second sealing ring 16, air flows out from the air pipe 15 through the first air vent 601, the second air vent 1601 and the gap between the second piston 13 and the second sealing ring 16, when a user stops air suction, air in the pressure reducer can restore air pressure balance because the air does not receive the force generated during air suction, the second piston 13 falls back, the first piston 3 is pushed back into the air inlet pipe 2 through resilience of the limiting spring 4, the air inlet pipe 2 is sealed, and waste of air in the air exhauster is avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a pressure stabilization type pressure reducer for air respirator, includes casing (1), its characterized in that: casing (1) one end fixedly connected with intake pipe (2), intake pipe (2) inside sliding connection has first piston (3), the spacing spring of first piston (3) one end fixedly connected with (4), spacing spring (4) one end fixedly connected with spring mounting (5), spring mounting (5) one side fixed connection is in first sealing washer (6) one end, first piston (3) one end fixedly connected with transfer line (7), transfer line (7) middle part is provided with ejector pad (8), ejector pad (8) one side is provided with the diversion and presss from both sides (9), diversion clamp (9) open end is provided with connecting rod (12), connecting rod (12) one end fixed connection is in second piston (13) one end, second piston (13) circumferential edge sliding connection is in second sealing washer (16) middle part, second sealing washer (16) circumferential edge is provided with gas-supply pipe (15), gas-supply pipe (15) one end fixed connection is in casing (1) upper end.

2. A pressure stabilized pressure reducer for an air respirator as claimed in claim 1 wherein: the middle of the transmission rod (7) penetrates through and is connected with the first sealing ring (6) in a sliding mode, and the other end of the transmission rod (7) is fixedly connected with a transmission mechanism (14).

3. A pressure stabilized pressure reducer for an air respirator as claimed in claim 2 wherein: drive mechanism (14) include driven plate (1401), installation shell (1402), first pivot (1403), stopper (1404), driving plate (1405), second pivot (1406), installation shell (1402) one side fixed connection is inside casing (1), the inside first pivot (1403) that is provided with of installation shell (1402), first pivot (1403) circumference surface fixed connection has two stopper (1404), first pivot (1403) circumference surface fixed connection has driving plate (1405), driving plate (1405) one end fixed connection is in transfer line (7) one end, the driving plate (1405) other end is provided with second pivot (1406), second pivot (1406) circumference surface fixed connection has driven plate (1401), driven plate (1401) one end sets up and presss from both sides (9) one side in the diversion.

4. A pressure stabilized pressure reducer for an air respirator as claimed in claim 1 wherein: the turning clamp is characterized in that a turning spring (17) is arranged at the lower end of the turning clamp (9), a steel wire rope (10) is arranged at the opening end of the turning clamp (9), and the middle of the steel wire rope (10) is fixedly connected to the bottom end of the connecting rod (12).

5. A pressure stabilized pressure reducer for an air respirator as claimed in claim 1 wherein: turning clamp (9) both ends fixed connection is inside mounting bracket (11), mounting bracket (11) one end fixed connection is in casing (1) inner wall, mounting bracket (11) other end fixed connection is in first sealing washer (6) one side.

6. A pressure stabilized pressure reducer for an air respirator as claimed in claim 1 wherein: a plurality of first vent holes (601) are formed in the first sealing ring (6), and a plurality of second vent holes (1601) are formed in the second sealing ring (16).

7. A pressure stabilized pressure reducer for an air respirator as claimed in claim 1 wherein: the circumferential surfaces of the air inlet pipe (2) and the air delivery pipe (15) are provided with thread lines (18).