CN212900083U

CN212900083U - Scouring structure of air supply valve

Info

Publication number: CN212900083U
Application number: CN202021851873.0U
Authority: CN
Inventors: 朱海静
Original assignee: Yueqing Ruifeng Safety Protection Equipment Co ltd
Current assignee: Yueqing Ruifeng Safety Protection Equipment Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-04-06
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to an air feed valve erodees structure, including knob, bypass main part fixing base, knob core, piston, bypass main part and lever seat, the knob passes through the bypass main part fixing base and is fixed with the knob core, and the bypass main part is connected with the lever seat, the knob core sets up first screw hole, the piston sets up the screw thread post, screw thread post and the cooperation of first screw hole, the piston is packed into in the bypass main part, the piston sets up the draw-in groove, the bypass main part sets up the sand grip, draw-in groove and sand grip cooperation, the bypass main part sets up the escape orifice. The utility model has the advantages that: the utility model discloses a knob core and piston set up screw thread post and first screw hole complex setting, have realized the push-and-pull stroke to the piston, the exhaust situation in control escape orifice to realize that control goes on the purpose that erodees in to the face guard, effectively avoided situations such as lens fogging and influence the situation of result of use.

Description

Scouring structure of air supply valve

Technical Field

The utility model relates to a structure that erodees of air feed valve belongs to safety protection and equips technical field.

Background

The gas supply valve is used for providing gas for a user, is usually used in occasions needing to output gas for a long time, such as diving breathing, breeding oxygenation, gas welding, medical oxygen supply and the like, and is widely applied to various fields of fire rescue, metallurgy, chemical industry, ships, army and the like.

Most of air supply valve products in the market at present only have positive pressure type air inlet effect, often do not have the scouring structure, when meeting the situation such as foreign matter or lens fogging in the face guard, can't get rid of the obstacle fast, influence the result of use. The conventional air supply valve has many drawbacks and its structure is desired to be further improved and perfected.

Disclosure of Invention

Technical problem to be solved

The utility model aims at solving the defects in the prior art, providing a gas supply valve scouring structure with simple and reasonable structure, which is used for scouring the face mask and eliminating the problem that the obstacles can not be removed quickly in the mask.

(II) technical scheme

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides an air feed valve erodees structure, includes knob, bypass main part fixing base, knob core, piston, bypass main part and lever seat, the knob passes through bypass main part fixing base and is fixed with the knob core, and the bypass main part is connected with the lever seat, the knob core sets up first screw hole, the piston sets up the screw thread post, screw thread post and the cooperation of first screw hole, the piston is packed into in the bypass main part, the piston sets up the draw-in groove, the bypass main part sets up the sand grip, draw-in groove and sand grip cooperation, the bypass main part sets up the escape orifice. The draw-in groove and sand grip cooperation realize that the piston is fixed a position at the circumferencial direction, and when rotating the knob core, the piston can also be fixed can not rotate at the circumferencial direction, has realized the push-and-pull of piston. When a user rotates the knob, the movement of the piston is realized through the arrangement of the threads, when the piston moves to expose the drain hole, gas is forcibly discharged to flush the inside of the mask, and when the piston moves in the opposite direction, the piston moves to block the drain hole, and the forced exhaust is stopped.

Further, the knob further comprises a screw and a knob baffle, the knob is further provided with a mounting counter bore, a mounting through hole is further formed in the mounting counter bore, the knob core is further provided with a second threaded hole, the screw penetrates through the mounting through hole to be matched with the second threaded hole, and the knob baffle is installed in the mounting counter bore. The knob core and the knob are fixed through the matching of the screw and the second threaded hole, and when a user rotates the knob, the knob core rotates together.

Furthermore, the first threaded hole and the threaded column are both forward threads and right-handed threads. When a user rotates the knob clockwise, the knob core pulls the piston to pull out the piston, when the drain hole is exposed, gas is forcibly discharged to flush the interior of the mask, when the user rotates the knob anticlockwise, the knob core pushes the piston to push the piston inwards, and when the piston moves to completely block the drain hole, forced exhaust is stopped.

Further, the knob is provided with a circular arc groove. The user can conveniently rotate, hold and hold the bottle.

(III) advantageous effects

Compared with the prior art, the utility model, it has following beneficial effect: the utility model discloses a knob core and piston set up screw thread post and first screw hole complex setting, have realized the push-and-pull stroke to the piston, the exhaust situation in control escape orifice to realize that control goes on the purpose that erodees in to the face guard, effectively avoided situations such as lens fogging and influence the situation of result of use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view showing the overall structure of a mask to which a flushing structure of an air supply valve according to the present invention is applied.

Fig. 2 is a front view of a flushing structure of an air supply valve according to the present invention.

Fig. 3 is a schematic sectional view a-a of fig. 2 showing a flushing structure of an air supply valve according to the present invention.

Fig. 4 is a schematic view of the back side of the flushing structure of the air supply valve according to the present invention.

Fig. 5 is a schematic view of a piston of a flushing structure of an air supply valve according to the present invention.

Fig. 6 is a schematic structural view of a knob core of a flushing structure of an air supply valve according to the present invention.

Fig. 7 is a schematic structural view of a bypass main body of a flushing structure of an air supply valve according to the present invention.

1. Knob baffle, 2, knob, 3, bypass main part fixing base, 4, knob core, 5, piston, 6, bypass main part, 7, lever seat, 8, screw, 21, installation counter bore, 22, installation through-hole, 23, circular arc recess, 41, first screw hole, 42, second screw hole, 51, screw post, 52, draw-in groove, 61, escape orifice, 62, sand grip.

Detailed Description

As shown in the accompanying drawings, the utility model discloses a structure is washed away to air feed valve of embodiment, including

knob

2, 6 fixing bases of bypass

main part

3, 2 cores of knob, piston 5, bypass main part 6 and lever seat 7, knob 2 is fixed with 2 cores of knob through 6 fixing bases of bypass main part 3, and bypass main part 6 is connected with

lever seat

7, 2 cores of knob set up first screw hole 41, piston 5 sets up threaded post 51, and threaded post 51 cooperates with first screw hole 41, in piston 5 packs into bypass main part 6, piston 5 sets up draw-in groove 52, bypass main part 6 sets up sand grip 62, draw-in groove 52 and sand grip 62 cooperation, bypass main part 6 sets up escape orifice 61. The clamping groove 52 is matched with the raised line 62, so that the piston 5 is positioned in the circumferential direction, and when the knob 2 core is rotated, the piston 5 can be fixed in the circumferential direction and cannot rotate, so that the push-pull of the piston 5 is realized. When a user rotates the knob 2, the arrangement of the threads realizes the movement of the piston 5, when the piston 5 moves to expose the drain hole 61, the gas is forcibly discharged to flush the interior of the mask, and when the piston 5 moves to block the drain hole 61 in the opposite direction, the forced exhaust is stopped.

The utility model discloses the further scheme of concrete embodiment erodees structure of air feed valve still includes

screw

8 and 2 baffle 1 of knob, knob 2 still sets up installation counter bore 21, still sets up installation through-hole 22 in the installation counter bore 21, 2 cores of knob still set up second screw hole 42, and screw 8 passes installation through-hole 22 cooperates with

second screw hole

42, 2 baffles 1 of knob are packed into in the installation counter bore 21. The knob 2 core is fixed with the knob 2 through the matching of the screw 8 and the second threaded hole 42, and when a user rotates the knob 2, the knob 2 core rotates together.

The utility model discloses the further scheme of concrete embodiment's a gas supply valve erodees structure, first screw hole 41 is forward screw thread with screw thread post 51, is the right-hand thread. When a user rotates the knob 2 clockwise, the threaded structure is utilized, the piston 5 is pulled by the core of the knob 2, the piston 5 is pulled out, when the drain hole 61 is exposed, gas is discharged forcibly, the interior of the mask is flushed, when the user rotates the knob 2 anticlockwise, the threaded structure is utilized, the core of the knob 2 pushes the piston 5, the piston 5 is pushed inwards, and forced exhaust is stopped when the piston 5 moves to completely block the drain hole 61.

The utility model discloses a further scheme's of the concrete embodiment an air supply valve erode structure, knob 2 sets up circular arc recess 23. The user can conveniently rotate, hold and hold the bottle.

The utility model discloses a 2 cores of knob and piston 5 set up screw thread post 51 and first screw hole 41 complex setting, have realized the push-and-pull stroke to piston 5, the exhaust situation of control escape orifice 61 to realize that control goes on the purpose of erodeing in to the face guard, effectively avoided situations such as lens fog and influence the situation of result of use.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. The utility model provides an air feed valve erodees structure, includes knob (2), bypass main part (6) fixing base (3), knob (2) core, piston (5), bypass main part (6) and lever seat (7), its characterized in that: knob (2) are fixed through bypass main part (6) fixing base (3) and knob (2) core, and bypass main part (6) are connected with lever seat (7), knob (2) core sets up first screw hole (41), piston (5) set up screw thread post (51), screw thread post (51) and first screw hole (41) cooperation, in piston (5) the bypass main part (6) of packing into, piston (5) set up draw-in groove (52), bypass main part (6) set up sand grip (62), draw-in groove (52) and sand grip (62) cooperation, bypass main part (6) set up escape orifice (61).

2. A flushing structure of an air supply valve according to claim 1, wherein: the knob is characterized by further comprising a screw (8) and a knob baffle (1), the knob (2) is further provided with an installation counter bore (21), an installation through hole (22) is further formed in the installation counter bore (21), a second threaded hole (42) is further formed in the core of the knob (2), the screw (8) penetrates through the installation through hole (22) and the second threaded hole (42) to be matched, and the knob baffle (1) is installed in the installation counter bore (21).

3. A flushing structure of an air supply valve according to claim 1, wherein: the first threaded hole (41) and the threaded column (51) are both positive threads.

4. A flushing structure of an air supply valve according to claim 1, wherein: the knob (2) is provided with an arc groove (23).