CN203463733U

CN203463733U - Flap valve

Info

Publication number: CN203463733U
Application number: CN201320493941.4U
Authority: CN
Inventors: 顾明
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-14
Filing date: 2013-08-14
Publication date: 2014-03-05
Anticipated expiration: 2023-08-14

Abstract

The utility model discloses a flap valve. By the aid of the flap valve, the problem of poor sealing performance of an existing flap valve in the prior art due to a linear contact seal mode can be solved. The flap valve comprises a flap valve body, a sealing mechanism, a valve, a rear flange and a hinge. The sealing mechanism is arranged on the front end surface of the valve, the flap valve body is arranged at the front of the sealing mechanism and is connected with the valve by the hinge, an included angle alpha between the vertical plane and a joint surface of the flap valve body and the valve is larger than or equal to 5 degrees and is smaller than or equal to 35 degrees, the sealing mechanism comprises a sealing protrusion and a sealing groove which are matched with each other, and a space between the sealing protrusion and the sealing groove is sealed by an elastic sealing ring. The flap valve has the advantages that the sealing protrusion is combined with the sealing groove, so that an existing linear seal or single-plane seal mode is replaced by a multi-plane seal mode and a curved-surface seal mode; the two seal modes can be implemented individually or jointly, accordingly, the contact area of the flap valve can be increased, and a sealing effect can be improved.

Description

Flap valve valve

Technical field

?this model utility relates to a kind of drainage and irrigation equipment, particularly relates to a kind of flap valve valve.

Background technique

Flap valve valve is widely used in the hydraulic engineerings such as drainage and irrigation station, water power plant, river course, aquaculture, reservoir, sewage treatment and municipal and environment-friendly.Common flap valve is comprised of flap valve valve body and flap valve valve gap, and flap valve valve body and flap valve valve gap are connected through the hinge.Flap valve is mounted in a kind of one-way valve of drainpipe outlet, and the hydraulic pressure in flap valve is greater than flap valve outside pressure and opens, otherwise closes.In practical application, the sealing means generally adopting is line contact sealing, and the sealability of rubber ring is not strong sometimes, can cause water leakage phenomenon.

Model utility content

The utility model has overcome the problem that line contact sealing mode that in prior art, flap valve valve adopts exists poor sealing, and a kind of simple in structure, reliable flap valve valve of sealing effect is provided.

Technical solution of the present utility model is, provide a kind of flap valve valve with following structure: comprise flap valve, sealing mechanism, valve body, rear flange and hinge, valve body front-end face is provided with sealing mechanism, before sealing mechanism, be provided with flap valve, between flap valve and valve body, be connected through the hinge, the junction plane of flap valve and valve body and the angle of vertical guide are α, 5 °≤α≤35 °, angle can be divided into 0 °≤α≤3 °, 3 °≤α≤4.95 °, 5.05 °≤α≤9.5 °, 9.5 °≤α≤13.5 °, 13.5 °≤α≤17.5 °, 17.5 °≤α≤19.95 °, 20.05 °≤α≤25 °, 25 °≤α≤30.05 ° or 30.05 °≤α≤35 °.Sealing mechanism comprises seal convexity and sealed groove, and seal convexity and sealed groove match each other, and between seal convexity and sealed groove, by elastic seal ring, seals.

Seal convexity is annular solid or saw body, and sealed groove is annular solid or saw body.The waist of saw body and the angle of upper bottom surface are β, 90.1 °≤β≤150.1 °.The upper surface Lower Half of flap valve is provided with draw ring.Elastic seal ring is U-shaped elastic seal ring or truncated cone shape seal ring.

Compared with prior art, the utility model flap valve valve has the following advantages: adopt the mode of seal convexity combination seal groove, change existing linear sealing or single plane sealing into many plane sealings and curved surface sealing.Two kinds of seal form both may be used alone, can also be used in combination, and not only increased area of contact, and lift-off seal effect.

Accompanying drawing explanation

Fig. 1 is the utility model flap valve valve embodiment one sectional view;

Fig. 2 is the structure for amplifying schematic diagram of sealing mechanism in the utility model flap valve valve embodiment one sectional view;

Fig. 3 is the utility model flap valve valve embodiment two sectional view;

Fig. 4 is the structure for amplifying schematic diagram of sealing mechanism in the utility model flap valve valve embodiment two sectional views;

Fig. 5 is the utility model flap valve valve embodiment three sectional view;

Fig. 6 is the structure for amplifying schematic diagram of sealing mechanism in the utility model flap valve valve embodiment three sectional views.

Embodiment

In accompanying drawing explanation, label 1 is valve body, the 2nd, and rear flange, the 3rd, valve body front-end face, the 4th, flap valve, the 5th, sealing mechanism, the 6th, hinge, the 7th, draw ring, the 8th, U-shaped elastic seal ring, the 9th, truncated cone shape elastic seal ring.

Below in conjunction with the drawings and specific embodiments, the utility model flap valve valve is described further: with reference to the accompanying drawings, the utility model can be divided into following examples to be realized.

Embodiment one: when the water of flap valve 4 sides is during higher than flap valve 4, due to the gravity of flap valve 4 self, add the pressure of water, now the state of flap valve 4 in unidirectional prevention current.When the water height in valve body 1 is enough high, can overcome the gravity of valve self, thereby jack-up valve makes water flow to flap valve valve from valve body 1 is interior.If need manually to discharge water in the export-oriented valve body 1 of flap valve 4, need to hold draw ring 7 with rope, carrying out people is draining.Flap valve valve in use, can adopt annular solid or saw body sealing mechanism as the sealing means in when work, also the sealing mechanism of annular solid and saw body can be used simultaneously, can reach better sealing effect like this.According to flap valve 4 and the junction plane of valve body 1 and the angle of vertical guide, be 5 °≤α≤35 °, in actual production, can produce as required the flap valve valve of 0 °≤α≤4.9 ° scope.As 0 °, 3 ° and 4.9 °.When manufacturing sealing mechanism, the waist of saw body and the angle of upper bottom surface can be made into 91 °≤β≤160 °, the product of this scope can meet seal request, and α and β are in above angular range simultaneously, and sealing mechanism 5 structurally all can exist many group variation patterns.

Embodiment two: when the water of flap valve 4 sides is during higher than flap valve 4, due to the gravity of flap valve 4 self, add the pressure of water, now the state of flap valve 4 in unidirectional prevention current.When the water height in valve body 1 is enough high, can overcome the gravity of valve self, thereby jack-up valve makes water flow to flap valve valve from valve body 1 is interior.If need manually to discharge water in the export-oriented valve body 1 of flap valve 4, need to hold draw ring 7 with rope, carrying out people is draining.Flap valve valve in use, can adopt annular solid or saw body sealing mechanism as the sealing means in when work, also the sealing mechanism of annular solid and saw body can be used simultaneously, can reach better sealing effect like this.According to flap valve 4 and the junction plane of valve body 1 and the angle of vertical guide, be 5 °≤α≤35 °, in actual production, can produce as required the flap valve valve of 5.1 °≤α≤19.9 ° scope.As 5.05 °, 9.5 °, 13.5 °, 17.5 ° and 19.95 °.When manufacturing sealing mechanism, the waist of saw body and the angle of upper bottom surface can be made into 91 °≤β≤160 °, the product of this scope can meet seal request, and α and β are in above angular range simultaneously, and sealing mechanism 5 structurally all can exist many group variation patterns.

Embodiment three: when the water of flap valve 4 sides is during higher than flap valve 4, due to the gravity of flap valve 4 self, add the pressure of water, now the state of flap valve 4 in unidirectional prevention current.When the water height in valve body 1 is enough high, can overcome the gravity of valve self, thereby jack-up valve makes water flow to flap valve valve from valve body 1 is interior.If need manually to discharge water in the export-oriented valve body 1 of flap valve 4, need to hold draw ring 7 with rope, carrying out people is draining.Flap valve valve in use, can adopt annular solid or saw body sealing mechanism as the sealing means in when work, also the sealing mechanism of annular solid and saw body can be used simultaneously, can reach better sealing effect like this.According to flap valve 4 and the junction plane of valve body 1 and the angle of vertical guide, be 5 °≤α≤35 °, in actual production, can produce as required the flap valve valve of 20.1 °≤α≤35 ° scope.As 20.05 °, 25 °, 30.05 ° and 35 °.When manufacturing sealing mechanism, the waist of saw body and the angle of upper bottom surface can be made into 91 °≤β≤160 °, the product of this scope can meet seal request, and α and β are in above angular range simultaneously, and sealing mechanism 5 structurally all can exist many group variation patterns.

Claims

1. a flap valve valve, comprise flap valve (4), sealing mechanism (5), valve body (1), rear flange (2) and hinge (6), valve body front-end face (3) is provided with sealing mechanism (5), sealing mechanism (5) is provided with flap valve (4) above, between flap valve (4) and valve body (1), be connected through the hinge, it is characterized in that: flap valve (4) and the junction plane of valve body (1) and the angle of vertical guide are α, 5 °≤α≤35 °, sealing mechanism (5) comprises seal convexity and sealed groove, seal convexity and sealed groove match each other, between seal convexity and sealed groove, by elastic seal ring, seal.

2. flap valve valve according to claim 1, is characterized in that: described seal convexity is annular solid or saw body, and sealed groove is annular solid or saw body.

3. flap valve valve according to claim 2, is characterized in that: the described waist of saw body and the angle of upper bottom surface are β, 90.1 °≤β≤150.1 °.

4. flap valve valve according to claim 1, is characterized in that: the upper surface Lower Half of described flap valve (4) is provided with draw ring (7).

5. flap valve valve according to claim 1, is characterized in that: described elastic seal ring is U-shaped elastic seal ring (8) or truncated cone shape elastic seal ring (9).

6. flap valve valve according to claim 1, it is characterized in that: described angle is 0 °≤α≤3 °, 3 °≤α≤4.95 °, 5.05 °≤α≤9.5 °, 9.5 °≤α≤13.5 °, 13.5 °≤α≤17.5 °, 17.5 °≤α≤19.95 °, 20.05 °≤α≤25 °, 25 °≤α≤30.05 ° or 30.05 °≤α≤35 °.