CN203500581U

CN203500581U - Check valve capable of ensuring closeness and leak stoppage

Info

Publication number: CN203500581U
Application number: CN201320554026.1U
Authority: CN
Inventors: 王维豊
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-06
Filing date: 2013-09-06
Publication date: 2014-03-26
Anticipated expiration: 2023-09-06

Abstract

The utility model discloses a check valve capable of ensuring closeness and leak stoppage. The check valve comprises a valve body, a check valve body, an auxiliary non-return valve and a valve cover, wherein a fluid inlet is formed in one end of the inner part of the valve body; a fluid outlet is formed in the other end of the inner part of the valve body; an opening is formed in the top end of the valve body; a sealing ring is sleeved at the fluid inlet; a first inclined surface is formed at the end edge of the fluid inlet; the check valve body comprises a valve and a sealing gasket; one end of the valve is pivoted to the inner circumference of the opening; the sealing gasket is fixedly arranged at the other end of the valve; the auxiliary non-return valve is assembled on the check valve body; the valve cover is screwed at the end edge of the opening. When the check valve swings in the valve body, the fluid inlet can be closed by the check valve indeed under the action of gravity, so that fluid leakage is effectively prevented; in addition, when fluid pressure is slightly changed, only the auxiliary non-return valve is turned on, so that the damage to parts caused by frequent turn-on and turn-off of the check valve can be avoided.

Description

Can guarantee the safety check of closely sealed leak-stopping

Technical field

The utility model is applied to the technical field of safety check, espespecially it technically provides a kind of safety check of guaranteeing closely sealed leak-stopping, by Action of Gravity Field, make sealing gasket be sealed on seal ring, can make this safety check really seal this fluid input, effectively prevent fluid leaks, another, when hydrodynamic pressure only has while slightly changing, only open this auxiliary check valve, can avoid this safety check to open and close too frequent, cause spare part to damage.

Background technique

Safety check is all a quite common device in various field, while such as carrying fluid, on the whole need to coordinate safety check to control the one-way flow of fluid, consult shown in Fig. 6, known check valve structure comprises: a valve body 50, a fluid input 51 is established in this inner one end of valve body 50, the other end is established a fluid output 52, an opening 53 is established on its top, interior Zhou Shushe mono-rocking bar 54 of this opening 53, the sheathed seal ring 55 of this fluid input 51, its ora terminalis forms a vertical surface 56, sealing ring 55 ora terminalis this vertical surface 56 that aligns; One safety check 60, this safety check 60 is fixed at this rocking bar 54; An and valve gap 70, this valve gap 70 is located at this opening 53 ora terminalis with several retaining screw 71 spiral shells, these opening 53 ora terminalis form a horizontal plane 57, although it has the effect of controlling fluid one-way flow, only, during this safety check 60 this fluid input 51 of sealing, this safety check 60 and sealing ring 55 cannot be closely sealed, easily produce the existing picture of fluid leaks, have in fact the necessity being improved.

Therefore for the existing problem points of above-mentioned known check valve structure, how to develop a kind of innovation structure that has more desirable practicability, real is that Consumer eagerly looks forward to, and is also that relevant dealer must make great efforts target and the direction that research and development break through.

In view of this, this is engaged in manufacturing development and the design experiences of Related product in for many years novel creator, for above-mentioned target, in detail after design and scrupulous assessment, eventually the utility model of a true tool practicability.

Model utility content

The purpose of this utility model is, a kind of safety check of guaranteeing closely sealed leak-stopping is provided, the defect existing to solve prior art, by Action of Gravity Field, make sealing gasket be sealed on seal ring, can make this safety check really seal this fluid input, effectively prevent fluid leaks, when hydrodynamic pressure only has while slightly changing, only open this auxiliary check valve, can avoid this safety check to open and close too frequent, cause spare part to damage.

A kind of safety check of guaranteeing closely sealed leak-stopping of the utility model, is characterized in that comprising:

One valve body, a fluid input is established in this valve inner one end, the other end is established a fluid output, an opening is established on its top, the sheathed seal ring of this fluid input, its ora terminalis forms one first plane of inclination, sealing ring ora terminalis this first plane of inclination of aliging, and sealing annulate shaft is to being vertical setting mutually with this first plane of inclination;

One safety check, this safety check comprises a valve and a sealing gasket, and this valve one end is hubbed at week in this opening, and the other end sets firmly sealing pad, and a start spring is hubbed at week this valve of resilient abutment in this opening; And

One valve gap, this valve gap is located at this opening ora terminalis with several retaining screw spiral shells;

By this, when this safety check is when this valve inner swings, see through Action of Gravity Field and make sealing pad be sealed on sealing ring, make this safety check really seal this fluid input, effectively prevent fluid leaks.

Wherein, this first plane of inclination counterclockwise rotates 5 to 30 degree by vertical surface and arranges.

Wherein, this opening ora terminalis forms one second plane of inclination, and this opening shaft is to being vertical setting mutually with this second plane of inclination.

Wherein, this second plane of inclination is arranged by horizontal plane clockwise direction rotation 5 to 30 degree.

Wherein, more comprise an auxiliary check valve, this auxiliary check valve comprises a valve seat, a Sealing, and this valve seat sequentially wears a pad, sealing pad and this valve, be screwed with a nut again, this auxiliary check valve is mounted on this safety check, and an entrance is established in the inner one end of this valve seat, and the other end is established an outlet, this entrance sets firmly a seal washer, this outlet is installed with the seal, and this outlet near-end edge radially provides an interdiction piece, and this interdiction piece prevents that the seal from dropping out this outlet.

Wherein, the seal is a steel ball.

Wherein, this interdiction piece is a latch.

Wherein, respectively this retaining screw sequentially wears this valve gap, a leak-proof washer and is screwed into this opening ora terminalis.

The safety check of guaranteeing closely sealed leak-stopping of the present utility model, when this safety check is when this valve inner swings, sees through Action of Gravity Field and makes sealing pad be sealed on sealing ring, can make this safety check really seal this fluid input, effectively prevents fluid leaks; This opening ora terminalis forms one second plane of inclination, when carrying out maintenance operation, can clearly inspect the associated component function situations such as this safety check, and conveniently change spare part operation by this opening; When hydrodynamic pressure only has while slightly changing, only open this auxiliary check valve, when hydrodynamic pressure change is larger, just can pushes this safety check open fluid is exported in a large number, can avoid this safety check to open and close too frequent, cause the damage of spare part.

The technology that relevant the utility model adopts, means and effect thereof, hereby lift a preferred embodiment and coordinate after graphic being described in more detail in, and believes the above-mentioned object of the utility model, structure and feature, when can by one deeply and concrete understanding.

Accompanying drawing explanation

Fig. 1: the utility model one embodiment's stereo appearance figure.

Fig. 2: the utility model one embodiment's three-dimensional exploded view.

Fig. 3: the utility model one embodiment's sectional drawing.

Fig. 4: the utility model one embodiment's auxiliary check valve opening state schematic diagram.

Fig. 5: the utility model one embodiment's auxiliary check valve and safety check opening state schematic diagram.

Fig. 6: known check valve structure sectional drawing.

Embodiment

Consult shown in Fig. 1 to Fig. 5, the utility model provides a kind of safety check of guaranteeing closely sealed leak-stopping, comprise: a valve body 10, a fluid input 11 is established in this inner one end of valve body 10, the other end is established a fluid output 12, an opening 13 is established on its top, the sheathed seal ring 15 of this fluid input 11, its ora terminalis forms one first plane of inclination 16, sealing ring 15 ora terminalis this first plane of inclination 16 of aliging, this first plane of inclination 16 counterclockwise rotates 5 to 30 degree by vertical surface and arranges, and sealing ring 15 is axially vertical setting mutually with this first plane of inclination 16;

One safety check 20, this safety check 20 comprises a valve 21, a sealing gasket 22, and these valve 21 one end are hubbed at interior week of this opening 13, and the other end sets firmly sealing pad 22, one start springs 23 and is hubbed at interior week of this opening 13 this valve 21 of resilient abutment; And

One valve gap 30, this valve gap 30 is located at this opening 13 ora terminalis with several retaining screw 31 spiral shells.

By this, when this safety check 20 is when these valve body 10 inside swing, see through Action of Gravity Field and make sealing pad 22 be sealed on sealing ring 15, can make this safety check 20 this fluid input 11 of sealing really, effectively prevent fluid leaks.

Aforementioned, this can guarantee that the safety check of closely sealed leak-stopping more comprises an auxiliary check valve 40, this auxiliary check valve 40 comprises a valve seat 41, one Sealing 42, this valve seat 41 sequentially wears a pad 25, sealing pad 22 and this valve 21, be screwed with a nut 26 again, this auxiliary check valve 40 is mounted on this safety check 20, an entrance 43 is established in this inner one end of valve seat 41, the other end is established an outlet 44, this entrance 43 sets firmly a seal washer 45, this outlet 44 is installed with the seal 42, the seal 42 is a steel ball, this exports 44 near-end edge and radially provides an interdiction piece 46, this interdiction piece 46 can prevent that the seal 42 from dropping out this outlet 44.

Aforementioned, this interdiction piece 46 is a latch.

Aforementioned, when hydrodynamic pressure only has while slightly changing, only open this auxiliary check valve 40, fluid sequentially flow through this fluid input 11, this entrance 43, and push the seal 42 open toward this outlet 44, these fluid output 12 outputs (as shown in Figure 4); When hydrodynamic pressure change is larger, just can push this safety check 20 open and make fluid export in a large number (as shown in Figure 5), by this, can avoid this safety check 20 to open and close too frequent, cause the damage of spare part.

Aforementioned, when hydrodynamic pressure pushes away the seal 42 toward this entrance 43, see through Action of Gravity Field and make the seal 42 be sealed on sealing packing ring 45, can make the seal 42 this entrance 43 of sealing really, effectively prevent fluid leaks.

Aforementioned, respectively this retaining screw 31 sequentially wears this valve gap 30, a leak-proof washer 32 and is screwed into this opening 13 ora terminalis.

Aforementioned, these opening 13 ora terminalis form one second plane of inclination 18, this second plane of inclination 18 is arranged by horizontal plane clockwise direction rotation 5 to 30 degree, this opening 13 is axially vertical setting mutually with this second plane of inclination 18, when carrying out maintenance operation, by this opening 13, can clearly be inspected the associated component function situations such as this safety check 20, and conveniently change spare part operation.

Be to be that technical characteristics of the present utility model is specifically described for preferred embodiment of the present utility model above; Only, person skilled in the art is when can the utility model change and be revised not departing under spirit of the present utility model and principle, and these changes and modification, all should be covered by the category that following claim defines.

Claims

1. can guarantee a safety check for closely sealed leak-stopping, it is characterized in that comprising:

2. the safety check of guaranteeing closely sealed leak-stopping as claimed in claim 1, is characterized in that, this first plane of inclination counterclockwise rotates 5 to 30 degree by vertical surface and arranges.

3. the safety check of guaranteeing closely sealed leak-stopping as claimed in claim 1, is characterized in that, this opening ora terminalis forms one second plane of inclination, and this opening shaft is to being vertical setting mutually with this second plane of inclination.

4. the safety check of guaranteeing closely sealed leak-stopping as claimed in claim 3, is characterized in that, this second plane of inclination is arranged by horizontal plane clockwise direction rotation 5 to 30 degree.

5. the safety check of guaranteeing closely sealed leak-stopping as claimed in claim 1, it is characterized in that, more comprise an auxiliary check valve, this auxiliary check valve comprises a valve seat, a Sealing, this valve seat sequentially wears a pad, sealing pad and this valve, be screwed with a nut again, this auxiliary check valve is mounted on this safety check, an entrance is established in the inner one end of this valve seat, the other end is established an outlet, and this entrance sets firmly a seal washer, and this outlet is installed with the seal, this outlet near-end edge radially provides an interdiction piece, and this interdiction piece prevents that the seal from dropping out this outlet.

6. the safety check of guaranteeing closely sealed leak-stopping as claimed in claim 5, is characterized in that, the seal is a steel ball.

7. the safety check of guaranteeing closely sealed leak-stopping as claimed in claim 5, is characterized in that, this interdiction piece is a latch.

8. the safety check of guaranteeing closely sealed leak-stopping as claimed in claim 1, is characterized in that, respectively this retaining screw sequentially wears this valve gap, a leak-proof washer and is screwed into this opening ora terminalis.