CN217842819U

CN217842819U - Air exhaust check valve

Info

Publication number: CN217842819U
Application number: CN202221623740.7U
Authority: CN
Inventors: 陈威
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-11-18
Anticipated expiration: 2032-06-27

Abstract

The utility model provides an exhaust check valve relates to check valve technical field to solve the problem that the valve clack that prior art stopped the return valve can't return in time, this exhaust check valve includes case pipeline, support frame and cushion, the support frame set up in the case pipeline and with the interior wall connection of case pipeline, the cushion paste lean on in on the support frame and through coupling assembling with the support frame is connected, the cushion can the shutoff when the tiling state case pipeline, make when the cushion warp the inside open mode that is in of case pipeline. The utility model discloses an exhaust check valve's return ability reinforce makes the runner in time close, has better sealing performance.

Description

Air exhaust check valve

Technical Field

The utility model belongs to the technical field of the check valve technique and specifically relates to a check valve of airing exhaust is related to.

Background

The function of the check valve is to allow the medium to flow in one direction only, but to prevent the flow in the opposite direction. Normally, such valves are self-actuating, in which the flap opens under the action of fluid pressure flowing in one direction and, in the opposite direction, the flap is urged against the valve seat by the fluid pressure and the self-weight of the flap, thereby shutting off the flow.

After the valve clack of the existing check valve is opened, the valve clack is closed and returned only under the action of gravity, and the phenomenon that the valve clack is clamped and cannot return in time often occurs, so that a flow channel is not closed tightly, and further the reverse flow of fluid cannot be prevented. In addition, the valve clack is easy to deform after being used for a long time, and the deformation degrees of the valve clacks are different, so that the tilting degrees of the periphery of the valve clack are different, and the sealing performance is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an exhaust check valve to solve the problem that the valve clack that prior art suspend the valve return can't in time return, the utility model discloses an exhaust check valve's return ability reinforce makes the runner can in time close, has better sealing performance.

The utility model provides a pair of check valve of airing exhaust, including case pipeline, support frame and cushion, the support frame set up in the case pipeline and with the interior wall connection of case pipeline, the cushion paste lean on in on the support frame and through coupling assembling with the support frame is connected, the cushion makes when the tiling state the inside shutoff state that is in of case pipeline, the cushion makes when curling deformation the inside open mode that is in of case pipeline.

As a preferred aspect of the present invention, the support frame is obliquely disposed below the upper airflow outlet end of the airflow inlet end.

As a preferred scheme of the utility model be provided with the retaining ring in the case pipeline, the retaining ring is followed the inner wall setting of case pipeline, the support frame with the retaining ring sets up on the coplanar just the periphery of support frame connect in on the retaining ring.

As a preferred scheme of the utility model, coupling assembling includes mounting and baffle, the mounting passes the cushion with the center of support frame sets up, the one end of baffle connect in on the baffle and the other end to the center of cushion extends, the cushion set up in the baffle with between the support frame.

As a preferred scheme of the utility model, the baffle includes two, two the baffle sets up in same straight line and follows the incline direction setting of support frame.

As a preferred scheme of the utility model, the support frame includes well core plate, bracing piece and a plurality of go-between, and is a plurality of the diameter of go-between increases in proper order and with well core plate is the diffusion setting from inside to outside as the center, the bracing piece with well core plate is the center and extends the setting and connect in well core plate and a plurality of between the go-between to the outside.

As a preferred scheme of the utility model, be provided with a plurality of limit teeth on the both sides limit of baffle, limit tooth protrusion in the both sides limit of baffle sets up, the baffle is close to be provided with a plurality of projections in its surperficial projection in the one side of cushion.

As an optimal scheme of the utility model, still including connecting the base, it includes connecting cylinder and bottom plate to connect the base, the bottom plate is followed the outside of connecting cylinder set up and with the axis of connecting cylinder is mutually perpendicular, be provided with the fixture block on the lateral wall of case pipeline be provided with the draw-in groove on the inside wall of connecting cylinder, the case pipeline passes through the fixture block card in the draw-in groove with the connecting cylinder is connected, the draw-in groove is the L type, the draw-in groove extends to the border setting of connecting cylinder, the fixture block is followed the border of connecting cylinder slides in the draw-in groove.

As a preferred embodiment of the present invention, a limiting plate is disposed on the outer sidewall of the valve core pipe, the limiting plate is disposed along the outer wall of the valve core pipe, and when the valve core pipe is connected to the connection base, the limiting plate abuts against the connection cylinder; the connecting cylinder is close to the bottom of bottom plate is provided with the support bar, the support bar is in the connecting cylinder in-connection the inner wall of connecting cylinder both sides.

As a preferred scheme of the utility model, still include the shell, the shell connect in on the case pipeline and to keeping away from connect the one end extension of base.

Compared with the prior art, the utility model discloses there is following positive effect:

1. the utility model provides an exhaust check valve, through including case pipeline, support frame and cushion, the support frame sets up in the case pipeline and with the interior wall connection of case pipeline, the cushion pastes and leans on the support frame and is connected with the support frame through coupling assembling, the cushion makes the inside shutoff state that is in of case pipeline when the tiling state, the cushion makes the inside open mode that is in of case pipeline when crimping. The utility model discloses an air exhaust check valve is through setting up the cushion to connect the cushion on the support frame, make it can realize automatic resilience under the elastic action of self after crimping warp, avoid the phenomenon of the return in time, and cushion formula structure as an organic whole, resilience performance is good, and wholeness deformability is strong, and has better roughness, makes its periphery closely laminate with the support frame, has better sealing performance.

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 the drawings without creative efforts.

Fig. 1 is a schematic structural view of the air exhaust check valve of the present invention;

FIG. 2 is an exploded view of the exhaust check valve of the present invention;

fig. 3 is a front view of the exhaust check valve frame of the present invention;

fig. 4 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 3.

In the figure: 1. a spool conduit; 11. a clamping block; 12. a limiting plate; 2. a support frame; 21. a center plate; 22. a support bar; 23. a connecting ring; 3. a retainer ring; 4. a rubber pad; 5. a baffle plate; 51. side teeth; 52. a convex column; 6. connecting a base; 61. a connecting cylinder; 611. a card slot; 62. a base plate; 63. a supporting strip; 7. a housing.

Detailed Description

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front", "rear", "head", "tail", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

The following describes the embodiments of the present invention in further detail with reference to the attached drawings.

Example 1:

the air exhaust check valve provided by the embodiment comprises a valve core pipeline 1, a support frame 2 and a rubber mat 4, wherein the support frame 2 is arranged in the valve core pipeline 1 and is connected with the inner wall of the valve core pipeline 1, the rubber mat 4 is attached to the support frame 2 and is connected with the support frame 2 through a connecting component, the rubber mat 4 enables the inner part of the valve core pipeline 1 to be in a plugging state when in a tiled state, and the rubber mat 4 enables the inner part of the valve core pipeline 1 to be in an opening state when in crimping deformation. The rubber mat 4 is made of silica gel and has good resilience performance.

When the exhaust check valve of the embodiment is used, when air flows from one side of the support frame 2 of the valve core pipeline 1 to one side of the rubber pad 4, the rubber pad 4 is curled and deformed under the impact of the air flow, so that the interior of the valve core pipeline 1 is in an open state, and the air flow can pass through the valve core pipeline 1; when the air flow flows from one side of the rubber pad 4 of the valve core pipeline 1 to one side of the support frame 2, the rubber pad 4 is attached to the support frame 2 under the impact action of the air flow and is in a flat-laying state, so that the interior of the valve core pipeline 1 is in a blocking state, and the air flow is blocked; the rubber mat 4 is spread on the supporting frame 2 in a natural state when there is no air flow.

The check valve of airing exhaust of this embodiment is through setting up cushion 4 to connect cushion 4 on support frame 2, make it can realize automatic resilience under the elastic action of self after crimping, avoid the phenomenon of return in time, and cushion 4 formula structure as an organic whole, the resilience performance is good, and whole deformability is strong, and has better roughness, makes its periphery can closely laminate with support frame 2, has better sealing performance.

Preferably, the support frame 2 is obliquely arranged in the valve core pipeline 1, and an included angle is formed between the support frame 2 and the radial surface of the valve core pipeline 1. The included angle between the support frame 2 and the radial surface of the valve core pipeline 1 is 10 degrees to 45 degrees, such as 30 degrees. Preferably, the support frame 2 is obliquely arranged from the upper part of the airflow inlet end to the lower part of the airflow outlet end, so that the rubber mat 4 can return under the action of gravity and the elastic action of the rubber mat 4 after being blown by the airflow and subjected to curling deformation, the return capability of the rubber mat 4 is further enhanced, and better sealing performance is ensured after the return.

Preferably, a retainer ring 3 is arranged in the valve core pipeline 1, the retainer ring 3 is arranged along the inner wall of the valve core pipeline 1, the support frame 2 and the retainer ring 3 are arranged on the same plane, and the periphery of the support frame 2 is connected to the retainer ring 3. After cushion 4 return, cushion 4's periphery is pasted and is leaned on retaining ring 3, seals up around cushion 4 through retaining ring 3, and retaining ring 3 makes cushion 4 have better sealing effect to case pipeline 1 inside with cushion 4's mating reaction.

The retainer ring 3 may be an outer ring structure provided on the support frame 2.

Preferably, coupling assembling includes mounting and baffle 5, and the mounting passes the center setting of cushion 4 and support frame 2, and the one end of baffle 5 is connected on retaining ring 3 and the other end extends to the center of cushion 4, and cushion 4 sets up between baffle 5 and support frame 2. Wherein, the mounting is the bolt, and the mounting is connected fixedly to the center of cushion 4 and support frame 2. The baffle 5 limits the side edge of the rubber mat 4 on the support frame 2 so as to ensure the resilience and the return capability of the curled rubber mat 4. The baffle 5 and the rubber mat 4 are arranged in a clearance mode, so that the periphery of the rubber mat 4 has good flatness.

Preferably, the baffle 5 comprises two baffles, and the two baffles 5 are arranged on the same straight line and arranged along the inclined direction of the support frame 2. Two baffles 5 are arranged along the same diameter of the support frame 2. The two baffles 5 are respectively arranged obliquely above and obliquely below the support frame 2. When the rubber mat 4 is curled and deformed under the action of fluid, the rubber mats 4 on two sides of the baffle 5 are curled and deformed towards one side back to the support frame 2, so that air flow passes through the rubber mats and can return under the action of the elastic force of the gravity of the rubber mats.

Preferably, the support frame 2 includes a central plate 21, a support rod 22 and a plurality of connection rings 23, the plurality of connection rings 23 have diameters which are sequentially increased and are divergently arranged from the inside to the outside with the central plate 21 as a center, and the support rod 22 is extended from the outside with the central plate 21 as a center and is connected between the central plate 21 and the plurality of connection rings 23. The fixing piece is fixed on the central plate 21 through the rubber pad 4. The air flow passes through the support frame 2 from between the plurality of connection rings. The support frame 2 has a better supporting function for the rubber mat 4.

Preferably, a plurality of edge teeth 51 are arranged on two sides of the baffle 5, and the edge teeth 51 are arranged to protrude from two sides of the baffle 5. One surface of the baffle 5 close to the rubber mat 4 is provided with a plurality of convex columns 52 protruding out of the surface. The side teeth 51 support the rubber mat 4 during the curling deformation, and the rubber mat 4 can return in time. The convex column 52 can be pressed on the rubber cushion 4, and has a good limiting effect on the rubber cushion 4.

Preferably, the exhaust check valve of the present embodiment further includes a connection base 6, the connection base 6 includes a connection cylinder 61 and a bottom plate 62, the bottom plate 62 is disposed along an outer side of the connection cylinder 61 and perpendicular to an axis of the connection cylinder 61, a latch 11 is disposed on an outer side wall of the valve core pipe 1, a slot 611 is disposed on an inner side wall of the connection cylinder 61, and the valve core pipe 1 is clamped in the slot 611 by the latch 11 and connected to the connection cylinder 61. The connection base 6 is used for mounting the cartridge tube 1 on a ventilation duct of a building.

When the exhaust check valve is applied to a kitchen flue, smoke in a kitchen flows into the valve core pipeline from one end, close to the support frame 2, of the valve core pipeline 1, flows through the support frame 2 and then blows towards the rubber mat 4, the rubber mat curls and deforms, the valve core pipeline is opened, and then flows to the connecting base 6 and flows into the smoke exhaust pipeline; flue gas in the exhaust pipe enters one end, close to the rubber mat 4, of the valve core pipe 1 from the connecting base 6 and cannot flow to a kitchen through the rubber mat 4, and the rubber mat 4 blocks the reverse flow of the flue gas in the exhaust pipe.

The locking groove 611 is L-shaped, the locking groove 611 extends to the edge of the connecting cylinder 61, and the locking block 11 slides into the locking groove 611 from the edge of the connecting cylinder 61. When the valve core pipeline 1 is connected with the connecting base 6, the clamping block 11 slides into the clamping groove 611 firstly, then the valve core pipeline 1 is rotated, so that the clamping block 11 is limited in the clamping groove 611, the valve core pipeline 1 and the connecting base 6 are convenient to disassemble and assemble, the interior of the valve core pipeline 1 is convenient to overhaul, when the rubber mat 4 is aged after being used for a long time, a new rubber mat can be replaced for continuous use, and the service life of the check valve is prolonged.

Preferably, a limiting plate 12 is arranged on the outer side wall of the valve core pipeline 1, the limiting plate 12 is arranged along the outer wall of the valve core pipeline 1, and when the valve core pipeline 1 is connected with the connecting base 6, the limiting plate 12 abuts against the connecting cylinder 61. The limiting plate 12 can play a role in positioning when the valve core pipeline 1 is connected with the connecting base 6, so that the connecting position of the valve core pipeline 1 and the connecting base 6 is kept stable, and the valve core pipeline 1 and the connecting base 6 are more convenient to install and operate.

The bottom end of the connecting cylinder 61 near the bottom plate 62 is provided with a support bar 63, and the support bar 63 is connected to the inner walls of both sides of the connecting cylinder 61 in the connecting cylinder 61. The support bars 63 support the connecting cylinder 61, so that the structure of the connecting base 6 is more stable.

Preferably, the check valve of this embodiment further comprises a housing 7, the housing 7 being attached to the spool conduit 1 and extending to an end remote from the attachment base 6. The housing 7 is intended to be connected to a flue gas duct, and when used in a kitchen flue, the housing 7 is connected to an exhaust gas duct inside the kitchen.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can make several modifications and improvements without departing from the inventive concept, and all shall be covered by the protection scope of the present invention.

Claims

1. The utility model provides an exhaust check valve, its characterized in that, includes case pipeline (1), support frame (2) and cushion (4), support frame (2) set up in case pipeline (1) and with the inner wall of case pipeline (1) is connected, cushion (4) paste lean on in support frame (2) and through coupling assembling with support frame (2) are connected, cushion (4) make when the state of tiling case pipeline (1) inside is in the shutoff state, make when cushion (4) warp spool valve pipeline (1) inside is in the open mode.

2. A venting check valve as claimed in claim 1, wherein said support frame (2) is inclined from above the air inlet end to below the air outlet end.

3. An exhaust check valve according to claim 2, characterized in that a retainer ring (3) is provided in the valve core pipe (1), the retainer ring (3) is provided along the inner wall of the valve core pipe (1), the support frame (2) and the retainer ring (3) are provided on the same plane, and the periphery of the support frame (2) is connected to the retainer ring (3).

4. An exhaust check valve according to claim 3, characterized in that the connecting assembly comprises a fixing member and a baffle plate (5), the fixing member is disposed through the centers of the rubber mat (4) and the supporting frame (2), one end of the baffle plate (5) is connected to the retainer ring (3) and the other end extends toward the center of the rubber mat (4), and the rubber mat (4) is disposed between the baffle plate (5) and the supporting frame (2).

5. An exhaust check valve according to claim 4, characterized in that said baffle (5) comprises two, two said baffles (5) being arranged in a same line and in an oblique direction of said support frame (2).

6. The air exhaust check valve according to claim 5, wherein the support frame (2) includes a central plate (21), a support rod (22) and a plurality of connection rings (23), the plurality of connection rings (23) have diameters that increase in sequence and are arranged to extend from inside to outside with the central plate (21) as a center, and the support rod (22) extends from outside with the central plate (21) as a center and is connected between the central plate (21) and the plurality of connection rings (23).

7. The exhaust check valve according to claim 5, characterized in that a plurality of side teeth (51) are disposed on two sides of the baffle (5), the side teeth (51) are protruded from two sides of the baffle (5), and a plurality of convex columns (52) protruded from the surface of the baffle (5) are disposed on one surface of the baffle (5) close to the rubber mat (4).

8. The exhaust check valve according to claim 1, further comprising a connection base (6), wherein the connection base (6) comprises a connection cylinder (61) and a bottom plate (62), the bottom plate (62) is disposed along an outer side of the connection cylinder (61) and perpendicular to an axis of the connection cylinder (61), a latch (11) is disposed on an outer side wall of the valve core pipe (1), a latch groove (611) is disposed on an inner side wall of the connection cylinder (61), the valve core pipe (1) is connected to the connection cylinder (61) by being latched in the latch groove (611) through the latch (11), the latch groove (611) is L-shaped, the latch groove (611) extends to an edge of the connection cylinder (61), and the latch (11) slides into the latch groove (611) from the edge of the connection cylinder (61).

9. An exhaust check valve according to claim 8, characterized in that a limiting plate (12) is arranged on the outer side wall of the valve core pipe (1), the limiting plate (12) is arranged along the outer wall of the valve core pipe (1), when the valve core pipe (1) is connected with the connecting base (6), the limiting plate (12) is abutted against the connecting cylinder (61); the connecting cylinder (61) is close to the bottom of bottom plate (62) is provided with support bar (63), support bar (63) are in connecting cylinder (61) in-connection the inner wall of connecting cylinder (61) both sides.

10. An exhaust check valve according to claim 8, further comprising a housing (7), said housing (7) being connected to said cartridge duct (1) and extending towards an end remote from said connection base (6).