CN206655993U

CN206655993U - A kind of check-valves

Info

Publication number: CN206655993U
Application number: CN201720359170.8U
Authority: CN
Inventors: 靳义坤; 刘卫强
Original assignee: Changzhou Sincere Valve Technology Co Ltd
Current assignee: Changzhou Sincere Valve Technology Co Ltd
Priority date: 2017-04-07
Filing date: 2017-04-07
Publication date: 2017-11-21
Anticipated expiration: 2027-04-07

Abstract

The utility model discloses a kind of check-valves, including valve seat, flap component and bolster, the flap component includes flap and swingle, described swingle one end is articulated in valve seat by rotating shaft, the other end is connected with flap, and the bolster is arranged in valve seat, and the output end of the bolster is connected by connecting rope with swingle, the flap is bowl structure, and sealing ring is provided with the sealing surface inside the valve seat.Check-valves triggering is sensitive in the utility model, service life is long and non-return effect is good.

Description

A kind of check-valves

Technical field

A kind of valve is the utility model is related to, more particularly, it relates to a kind of check-valves.

Background technology

Check-valves refers to flow in itself by medium and automatic open and close flap, existing for preventing the valve of medium refluence Check-valves simply simply flap is fixed at the sealing surface of valve seat by rotational structure, only when interior media occur it is a large amount of It can just be triggered during refluence, and with the extension of usage time, the collision frequency of flap and valve seat increases, flap seals with sealing surface Property reduce, the occurrence of causing leakage.

Utility model content

For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of triggering sensitive, service life Long and good non-return effect check-valves.

To solve the above problems, technical scheme is as follows used by the utility model：

A kind of check-valves, including valve seat, flap component and bolster, the flap component include flap and swingle, institute State swingle one end to be articulated in valve seat by rotating shaft, the other end is connected with flap, and the bolster is arranged in valve seat, described The output end of bolster is connected by connecting rope with swingle, and the flap is bowl structure, the sealing surface inside the valve seat Place is provided with sealing ring.

Preferably, the limited block of restricted swingle slewing area is set in the valve seat.

Preferably, the diameter of the water inlet of the valve seat is less than the diameter of delivery port.

Preferably, the connecting rope is steel wire rope.

Preferably, the bolster include housing, protecgulum, bonnet, piston, piston rod and elastic component, the protecgulum and after Lid is separately fixed at the both ends of housing, and the piston is arranged in housing, and the piston rod is connected through bonnet with piston, described Elastic component is arranged between protecgulum and piston, and first through hole is offered on the protecgulum, is covered after described and offers third through-hole.

Preferably, the elastic component is spring.

Preferably, multiple second through holes are offered along piston traffic direction in the housing sidewall.

Preferably, the aperture of the first through hole is more than the aperture of third through-hole.

Preferably, the aperture of the first through hole is more than the aperture of the second through hole.

Compared with prior art, the beneficial effects of the utility model are：Check-valves triggering is sensitive in the utility model, uses Long lifespan and non-return effect is good.Bolster can provide certain effect power to flap, make it under unused state in valve seat The sealing surface in portion；When medium flows backwards, the flap of bowl structure can bear more media, make its stress bigger, it is easier to Xiang Mi It is close at front cover；Sealing ring can provide certain cushioning effect, mitigate damage suffered during flap folding, and can be more preferable with flap Coordinate, there is provided more preferable seal.

Brief description of the drawings

Fig. 1 is the profile of check-valves in the utility model；

Fig. 2 is the structural representation of flap in Fig. 1；

Fig. 3 is the profile of bolster in Fig. 1；

Fig. 4 enters profile during water state for check-valves in Fig. 1；

Wherein, 1 be valve seat, 11 be water inlet, 111 be sealing ring, 12 be delivery port, 2 be flap component, 21 be flap, 22 be swingle, 23 be rotating shaft, 3 be bolster, 31 be protecgulum, 311 be first through hole, 32 be housing, 321 be the second through hole, 33 it is bonnet, 331 be third through-hole, 341 be elastic component, 342 be piston, 343 be piston rod, 4 be connecting rope, 5 is limited block.

Embodiment

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

As shown in Figure 1, 2, it is a kind of check-valves in the utility model preferred embodiment, including valve seat 1, the and of flap component 2 Bolster 3, flap component 2 include flap 21 and swingle 22, and the one end of swingle 22 is articulated in valve seat 1 by rotating shaft 23, separately One end is connected with flap 21, and bolster 3 is arranged in valve seat 1, and the output end of bolster 3 is connected by connecting rope 4 and swingle 22 Connect, flap 21 is bowl structure, and sealing ring 111 is provided with the sealing surface inside valve seat 1.Bolster 3 can be provided flap 21 Certain effect power, make its sealing surface under unused state inside valve seat 1；When medium flows backwards, the flap of bowl structure 21 can bear more media, make its stress bigger, it is easier to close to sealing surface；Sealing ring 111 can provide certain buffering Effect, mitigate damage suffered during 21 folding of flap, and can preferably coordinate with flap 21, there is provided more preferable seal.

In the present embodiment, the diameter of the water inlet 11 of valve seat 1 is less than the diameter of delivery port 12, in this way, no matter intake or During refluence, flow velocity is consistently greater than the flow velocity at delivery port 12 at water inlet 11, so that having larger hydraulic pressure at sealing surface, enters During water, easily flap 21 can be pushed open (as shown in Figure 4), during refluence, rapidly can pushed to flap 21 at sealing surface, formed close Seal (as shown in Figure 1).

Specifically, connecting rope 4 is steel wire rope, steel wire rope has certain rigidity, can quickly conduct bolster 3 to flap 21 Active force, and service life grow.

As shown in figure 3, in the present embodiment, bolster 3 includes housing 32, protecgulum 31, bonnet 33, piston 342, piston rod 343 and elastic component 341, protecgulum 31 and bonnet 33 be separately fixed at the both ends of housing 32, piston 342 is arranged in housing 32, living The one end of stopper rod 343 is connected through bonnet 33 with piston 342, and the other end is connected with connecting rope 4, and elastic component 341 is arranged on protecgulum 31 Between piston 342, first through hole 311 is offered on protecgulum 31, third through-hole 331 is offered on bonnet 33.Unused state Under, because elastic component 341 is in diastole state, the non-return therewith of flap 21 can be easy to by the push away near of flap 21 to sealing surface.

Specifically, elastic component 341 is spring.

Specifically, offer multiple second through holes 321 along the traffic direction of piston 342 in the side wall of housing 32.First through hole 311 Aperture be much larger than the aperture of third through-hole 331, the aperture of first through hole 311 is more than the aperture of the second through hole 321.Fallen in medium During stream, as piston 342 moves at bonnet 33, the through hole that the cavity formed between piston 342 and bonnet 33 includes by Decrescence few, the motion of piston 342 slows down, and reduces dynamics during the contact of the sealing ring 111 of flap more than 21, reduces the damage collided therebetween Wound；When medium enters from water inlet 11 fashionable, the through hole that the cavity formed between piston 342 and bonnet 33 includes gradually increases It is more, and because the aperture of first through hole 311 is much larger than the aperture of third through-hole 331, flap 21 can be opened quickly, ensure water inlet Speed.

In order to ensure that flap 21 does not occur excessively to offset in position in water inlet, follow-up non-return effect is had influence on, in valve seat 1 The limited block 5 of the restricted slewing area of swingle 22 is set.Limited block 5 acts on swingle 22, and control swingle is within 45 ° Scope rotation, make flap 21 that there is optimal non-return effect.

In the utility model, bolster 3 can provide certain effect power to flap 21, make it under unused state close to valve Sealing surface inside seat 1；When medium flows backwards, the flap 21 of bowl structure can bear more media, make its stress bigger, more hold Easily to close at sealing surface；Sealing ring 111 can provide certain cushioning effect, mitigate damage suffered during 21 folding of flap, and can Preferably coordinate with flap 21, there is provided more preferable seal.

It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various Corresponding change and deformation, and all these changes and deformation should all belong to the protection of the utility model claims Within the scope of.

Claims

A kind of 1. check-valves, it is characterised in that including valve seat, flap component and bolster, the flap component include flap and Swingle, described swingle one end are articulated in valve seat by rotating shaft, and the other end is connected with flap, and the bolster is arranged on valve In seat, the output end of the bolster is connected by connecting rope with swingle, and the flap is bowl structure, inside the valve seat Sealing surface at be provided with sealing ring.
2. check-valves as claimed in claim 1, it is characterised in that the sealing ring is quality of rubber materials.
3. check-valves as claimed in claim 1, it is characterised in that the diameter of the water inlet of the valve seat is less than the straight of delivery port Footpath.
4. check-valves as claimed in claim 1, it is characterised in that the connecting rope is steel wire rope.
5. the check-valves as described in claim any one of 1-4, it is characterised in that the bolster include housing, protecgulum, after Lid, piston, piston rod and elastic component, the protecgulum and bonnet are separately fixed at the both ends of housing, and the piston is arranged on housing Interior, the piston rod is connected through bonnet with piston, and the elastic component is arranged between protecgulum and piston, is opened up on the protecgulum There is first through hole, covered after described and offer third through-hole.
6. check-valves as claimed in claim 5, it is characterised in that the elastic component is spring.
7. check-valves as claimed in claim 5, it is characterised in that offered in the housing sidewall along piston traffic direction more Individual second through hole.
8. check-valves as claimed in claim 7, it is characterised in that the aperture of the first through hole is more than the hole of third through-hole Footpath.
9. check-valves as claimed in claim 7, it is characterised in that the aperture of the first through hole is more than the hole of the second through hole Footpath.