CN216319584U

CN216319584U - Air supply valve of air respirator

Info

Publication number: CN216319584U
Application number: CN202122352530.0U
Authority: CN
Inventors: 王中海
Original assignee: Cangzhou Haigu Security Technology Co ltd
Current assignee: Cangzhou Haigu Security Technology Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-04-19
Anticipated expiration: 2031-09-27

Abstract

The utility model relates to the technical field of air respirators, and provides an air supply valve of an air respirator, which is convenient for quick installation of the air supply valve and has better installation stability, and comprises a face mask and an air supply valve body, wherein the lower part of the face mask is provided with an installation groove, the air supply valve body is positioned in the installation groove, the face mask is communicated with a fixed pipe through an air inlet, the air supply valve body is communicated with an installation pipe, the fixed pipe is provided with a plurality of locking grooves, the insides of the locking grooves are connected with locking plates through locking springs, the locking plates are connected with locking rods, the installation pipe is provided with a plurality of locking holes matched with the locking rods, the fixed pipe is connected with an unlocking assembly, the unlocking assembly comprises a pull rope, the fixed pipe is connected with a plurality of pairs of vertical plates, the locking plates are positioned between two corresponding vertical plates, the vertical plates are connected with rope rings, the pull rope is positioned in the rope rings, and the locking plates are all connected with the pull rope, and a pulling assembly is mounted on the pull cord.

Description

Air supply valve of air respirator

Technical Field

The utility model relates to the technical field of air respirators, in particular to an air supply valve of an air respirator.

Background

As is well known, an air respirator, also called a gas storage respirator, sometimes called a fire mask, uses a compressed gas cylinder as a gas source, but the gas contained in the cylinder is compressed air, and the respirator needs to use a gas supply valve to deliver air into a mask for a wearer to breathe during use, and the gas supply valve is widely used in the field of air respirators.

Through search, the utility model with chinese patent publication No. CN201719719U discloses a positive pressure air respirator air supply valve, which is roughly described as comprising an air supply valve body and an air supply valve cover fixedly connected thereto, an air supply valve cavity is formed between the air supply valve body and a main diaphragm, the main diaphragm is erected on the inner wall of the air supply valve cover at the position of the air supply valve cavity, an air inlet rod mounting hole is formed in the air supply valve body, an air inlet rod is rotatably and hermetically mounted in the air inlet rod mounting hole, the air inlet rod is provided with an air inlet shaft hole, a bypass air hole is radially formed on the air inlet rod, an air supply hole, a bypass connecting hole and an air suction hole are formed in the air supply valve body, a switch cavity is formed between the air suction hole and the air supply valve cavity, an instant suction and opening device is arranged in the air supply valve body at the position of the switch cavity, when pressure reduction occurs in the air outlet, the air in the air supply valve cavity is opened by the instant suction and opening device at the closed state under the action of air pressure difference, which is worn on the lower left portion of the mask.

Although the above prior art scheme has simple and compact structure, small volume, space saving and convenient wearing, and can avoid being hit by the hook and the falling object in the air during the rescue process, the safety is high, but the connection is more complicated when the air supply valve and the face mask are installed, and the connection is unstable, the air supply valve is easy to fall off, and danger can be caused in the using process.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides an air supply valve of an air respirator, which solves the problems that the prior art provided by the background art is inconvenient to install the air supply valve quickly and has poor installation stability.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an air respirator air feed valve, includes face guard and air feed valve body, the mounting groove has been seted up to the lower part of face guard, the air feed valve body is located the inside of mounting groove, the face guard has fixed pipe through the air inlet intercommunication, air feed valve body intercommunication has the installation pipe, a plurality of locking grooves have been seted up on the fixed pipe, there is the locking plate inside in locking groove through locking spring coupling, the locking plate is connected with the check lock lever to set up a plurality of locking holes that match with the check lock lever on the installation pipe, be connected with the unblock subassembly on the fixed pipe.

Preferably, the unlocking assembly comprises a pull rope, the fixed pipe is connected with a plurality of pairs of vertical plates, the locking plates are located between the two corresponding vertical plates, the vertical plates are connected with rope rings, the pull rope is located inside the rope rings, the locking plates are connected with the pull rope, and the pull rope is provided with a pulling assembly.

Furthermore, the pulling assembly comprises a plurality of pull rods, the pull rods are slidably mounted on the pull ropes, the pull rods are connected with the rotating plate in a rotating mode, and the fixing pipe is connected with a limiting assembly used for limiting the rotating plate.

Still further, the limiting assembly comprises two limiting plates, clamping blocks are rotatably connected to the limiting plates, and two clamping grooves matched with the clamping blocks are formed in the rotating plates.

As a further scheme of the scheme, the installation pipe is connected with a limiting block, and the fixed pipe is provided with a limiting groove matched with the limiting block.

As a further scheme of this scheme, the air supply valve body is connected with a plurality of locating levers, the internal connection of mounting groove has a plurality of registration arms, locating lever and registration arm are sliding fit.

On the basis of the scheme, a plurality of sealing rings are connected inside the fixed pipe.

On the basis of the scheme, the rotating plate is further connected with a pull ring.

(III) advantageous effects

Compared with the prior art, the utility model provides an air supply valve of an air respirator, which has the following beneficial effects:

according to the utility model, the gas supply valve body is placed in the mounting groove, the gas supply valve body and the mask body are connected through the sliding fit of the mounting pipe and the fixing pipe, the locking rod can be inserted into the locking hole through the locking spring, the mounting pipe can be fixed, the locking groove can be shielded through the locking plate, the situation that small substances enter the locking groove to block the locking rod is reduced, the locking rod can be pulled out from the locking hole through the unlocking assembly, and the gas supply valve body is detached.

Drawings

FIG. 1 is a partially cut-away perspective view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic view of the mounting tube, locking spring, locking plate and locking lever of the present invention in a partially cross-sectional perspective configuration;

fig. 4 is a schematic view of a three-dimensional structure of the utility model with a pull rod, a rotating plate, a limiting plate, a clamping block and the like.

In the figure: 1. a face mask; 2. an air supply valve body; 3. a fixed tube; 4. installing a pipe; 5. a locking spring; 6. a locking plate; 7. a locking lever; 8. pulling a rope; 9. a vertical plate; 10. a rope loop; 11. a pull rod; 12. rotating the plate; 13. a limiting plate; 14. a clamping block; 15. a limiting block; 16. positioning a rod; 17. a positioning tube; 18. a seal ring; 19. and (4) a pull ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-4, an air supply valve of an air respirator comprises a face mask 1 and an air supply valve body 2, wherein a mounting groove is formed in the lower portion of the face mask 1, the air supply valve body 2 is located inside the mounting groove, the air supply valve body 2 is connected with a plurality of positioning rods 16, the mounting groove is connected with a plurality of positioning tubes 17, the positioning rods 16 and the positioning tubes 17 are in sliding fit, so that the air supply valve body 2 can be conveniently positioned, the air supply valve body 2 can be rapidly mounted, the face mask 1 is communicated with a fixing tube 3 through an air inlet, the air supply valve body 2 is communicated with a mounting tube 4, the fixing tube 3 is internally connected with a plurality of sealing rings 18, so that the sealing performance between the fixing tube 3 and the mounting tube 4 can be conveniently improved, the leakage of air can be reduced, the mounting tube 4 is connected with a limiting block 15, and the fixing tube 3 is provided with a limiting groove matched with the limiting block 15, so that the mounting tube 4 can be conveniently limited, reduce rocking of installation pipe 4, a plurality of locking grooves have been seted up on fixed pipe 3, the inside in locking groove is connected with locking plate 6 through locking spring 5, locking plate 6 is connected with check lock lever 7, and set up a plurality ofly on the installation pipe 4 and the locking hole that 7 matches of check lock lever, can insert the inside in locking hole with check lock lever 7 through locking spring 5, fix installation pipe 4, can shelter from the locking groove through locking plate 6, it hinders the locking production of locking lever 7 to reduce the inside that the fritter material got into the locking groove, be connected with the unblock subassembly on the fixed pipe 3.

It should be further explained that the unlocking assembly includes a pulling rope 8, the fixed tube 3 is connected with a plurality of pairs of vertical plates 9, the locking plates 6 are located between two corresponding vertical plates 9, the vertical plates 9 are connected with a rope ring 10, the pulling rope 8 is located inside the rope ring 10, the plurality of locking plates 6 are all connected with the pulling rope 8, and the pulling assembly is installed on the pulling rope 8, the pulling assembly can pull the pulling rope 8 to tighten up the pulling rope 8, the pulling rope 8 can slide inside the rope ring 10, the pulling rope 8 can pull the locking plates 6 when tightening up through the supporting effect of the vertical plates 9 on the pulling rope 8, the locking rods 7 are driven to be pulled out from the inside of the locking holes, the locking effect of the locking rods 7 on the installation tube 4 is released, the air supply valve body 2 can be disassembled, the pulling assembly includes a plurality of pulling rods 11, the pulling rods 11 are slidably installed on the pulling rope 8, the plurality of pulling rods 11 are rotatably connected with a rotating plate 12, the fixed tube 3 is connected with a limiting component for limiting the rotating plate 12, the pull rod 11 can be pulled through the rotating plate 12 so as to pull and tighten the pull rope 8, the limiting component can limit the rotating plate 12, the rotation of the rotating plate 12 is reduced in the normal use process, so that the tightening condition of the pull rope 8 is reduced, the stability of the locking plate 6 and the locking rod 7 is kept, the limiting component comprises two limiting plates 13, clamping blocks 14 are rotatably connected on the limiting plates 13, two clamping grooves matched with the clamping blocks 14 are formed in the rotating plate 12, during normal use of the air supply valve body 2, the rotating plate 12 is rotated to between the two stopper plates 13, the rotating plate 12 can be limited by the matching of the clamping block 14 and the clamping groove, the rotation of the rotating plate 12 is reduced, the board 12 that changes is touched to reducible mistake and is pulled stay cord 8, is connected with pull ring 19 on the board 12 that changes, and the personnel of being convenient for wear pull board 12 and pull rod 11.

To sum up, this air respirator air feed valve's theory of operation and working process do, when using, at first place this air respirator air feed valve in the inside of mounting groove, sliding fit through locating lever 16 and registration arm 17 fixes a position air feed valve body 2, the personnel of wearing will change board 12 and rotate from between two limiting plates 13, pull board 12 and pull rod 11 are stimulateeed through pull ring 19, it is taut with stay cord 8, stimulate jam plate 6, then insert the inside of fixed pipe 3 with installation pipe 4, connect air feed valve body 2 and mask 1 body, loosen pull ring 19, can insert the inside in locking hole with check lock lever 7 through locking spring 5, fix installation pipe 4, change over to between two limiting plates 13 with commentaries on classics board 12, it can to change board 12 to fix through fixture block 14.

Further, when needing to dismantle air feed valve body 2, the person of wearing will change board 12 and rotate from between two limiting plate 13, stimulate deflector 12 and pull rod 11 through pull ring 19, with the stay cord 8 taut, carry out the tensioning to stay cord 8 through riser 9 to pulling locking plate 6, drive check lock lever 7 and pull out from the inside in locking hole, dismantle air feed valve body 2 can.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an air respirator air feed valve, includes face guard (1) and air feed valve body (2), its characterized in that, the mounting groove has been seted up to the lower part of face guard (1), air feed valve body (2) are located the inside of mounting groove, face guard (1) have fixed pipe (3) through the air inlet intercommunication, air feed valve body (2) intercommunication has installation pipe (4), a plurality of locking grooves have been seted up on fixed pipe (3), the inside in locking groove is connected with locking plate (6) through locking spring (5), locking plate (6) are connected with check lock lever (7) to set up a plurality of locking holes that match with check lock lever (7) on installation pipe (4), be connected with the unblock subassembly on fixed pipe (3).

2. The supply valve of air respirator according to claim 1, characterized in that the unlocking assembly comprises a pulling rope (8), a plurality of pairs of vertical plates (9) are connected to the fixing tube (3), the locking plates (6) are located between two corresponding vertical plates (9), a rope loop (10) is connected to the vertical plates (9), the pulling rope (8) is located inside the rope loop (10), the locking plates (6) are all connected to the pulling rope (8), and a pulling assembly is mounted on the pulling rope (8).

3. The supply valve of air respirator according to claim 2, characterized in that the pulling assembly comprises a plurality of pull rods (11), the pull rods (11) are slidably mounted on the pull rope (8), a rotating plate (12) is rotatably connected between the pull rods (11), and a limiting assembly for limiting the rotating plate (12) is connected to the fixed pipe (3).

4. The supply valve of air respirator according to claim 3, characterized in that the limiting component comprises two limiting plates (13), a clamping block (14) is rotatably connected to the limiting plates (13), and two clamping grooves matched with the clamping block (14) are formed on the rotating plate (12).

5. The supply valve of air respirator according to claim 4, characterized in that the mounting tube (4) is connected with a limiting block (15), and the fixing tube (3) is provided with a limiting groove matching with the limiting block (15).

6. The supply valve of air respirator according to claim 5, characterized in that a plurality of positioning rods (16) are connected to the supply valve body (2), a plurality of positioning tubes (17) are connected to the inside of the mounting groove, and the positioning rods (16) and the positioning tubes (17) are in sliding fit.

7. Air respirator supply valve according to claim 6, characterized in that sealing rings (18) are connected to the inside of the fixing tube (3).

8. Air respirator supply valve according to claim 7, characterized in that a pull ring (19) is attached to the flap (12).