CN206539738U - Bivalve butterfly DRV - Google Patents
Bivalve butterfly DRV Download PDFInfo
- Publication number
- CN206539738U CN206539738U CN201720243029.1U CN201720243029U CN206539738U CN 206539738 U CN206539738 U CN 206539738U CN 201720243029 U CN201720243029 U CN 201720243029U CN 206539738 U CN206539738 U CN 206539738U
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- flap
- valve shaft
- valve
- rubber layer
- valve body
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Abstract
The utility model discloses a kind of bivalve butterfly DRV, including valve body, the inside of valve body is being radially provided with valve shaft, provided with two symmetrically arranged flow inlets below valve shaft in valve body, valve shaft is provided with two flaps that are corresponding with flow inlet respectively and being rotated around valve shaft, the torsionspring for remaining closed flap is installed, the whole surface of flap is coated with rubber layer on valve shaft；The utility model has cast out the structure of rubber valve seat, while flap material requires relatively low and without PROCESS FOR TREATMENT, thus be simple to manufacture, cost it is relatively low；The whole cladding rubber layers of the flap, rubber layer resistance to acids and bases is relatively preferable and difficult for drop-off, and service life is long；It can be installed and used after flap cladding rubber layer, be not in hardening or aging phenomenon that the influence of spraying process high temperature is produced, sealing effectiveness and muting function are all significantly improved.
Description
Technical field
The utility model is related to check-valves technical field, more particularly to a kind of bivalve butterfly swing check valve.
Background technology
Bivalve butterfly swing check valve refers to flow in itself by medium and automatic shutter flap, the valve for preventing medium refluence
Door, belongs to a kind of automatic valve, on the pipeline for being mainly used in medium one-way flow, in the fluid pressure of a direction liquid flowing
Under power effect, flap is opened；When pipeline flows without Fluid pressure or fluid opposite direction, valve is made by spring loads and Fluid pressure
Valve is remained closed, so as to reach the effect that preventing and treating medium flows backwards；The sealing structure of current bivalve butterfly swing check valve is generally in valve body
Interior to set the valve seat for vulcanizing rubber, flap uses stainless steel (as shown in Figure 4), and the bivalve butterfly swing check valve of these structures has
Following shortcoming：1st, flap is stainless steel, material cost and high processing costs, and manufacture difficulty is big；2nd, valve body is arrived in rubber valve seat vulcanization
On, structure is not firm, and high temperature easily causes rubber valve seat aging when valve body carries out surface electrostatic painting, reduces valve seat service life,
And it is too high to easily cause rubber hardness, sealing is difficult；3rd, noise is larger when flap is closed；4th, flap material is stainless steel, acid and alkali-resistance
Corrosivity is relatively poor.
Utility model content
Technical problem to be solved in the utility model is to provide that a kind of processing is simple, cost is relatively low, acid-alkali-corrosive-resisting
Preferably, service life length and the use less bivalve butterfly DRV of noise.
In order to solve the above technical problems, the technical solution of the utility model is：Bivalve butterfly DRV, including valve
Body, the inside of the valve body is being radially provided with valve shaft, the valve body below the valve shaft provided with two symmetrically arranged water
Inflow entrance, the valve shaft is described provided with two flaps that are corresponding with the flow inlet respectively and being rotated around the valve shaft
The torsionspring for remaining closed the flap is installed, the whole surface of the flap is coated with rubber layer on valve shaft.
As preferred technical scheme, in the rubber layer with the contact surface of the flow inlet at be provided with rubber convex
Rise.
As preferred technical scheme, the shore hardness of the rubber layer is 65 degree.
By adopting the above-described technical solution, bivalve butterfly DRV, including valve body, the inside of the valve body is in footpath
To provided with valve shaft, provided with two symmetrically arranged flow inlets below the valve shaft in the valve body, the valve shaft is provided with
Being provided with two flaps that are corresponding with the flow inlet respectively and being rotated around the valve shaft, the valve shaft makes the flap
The torsionspring remained closed, the whole surface of the flap is coated with rubber layer；The utility model has cast out rubber valve seat
Structure, while flap material requires relatively low and without PROCESS FOR TREATMENT, so be simple to manufacture, cost it is relatively low；The flap is all wrapped
Rubber layer is covered, rubber layer resistance to acids and bases is relatively preferable and difficult for drop-off, and service life is long；It can be installed after flap cladding rubber layer
Use, be not in hardening or aging phenomenon that the influence of spraying process high temperature is produced, sealing effectiveness and muting function all show
Write and improve.
Brief description of the drawings
The following drawings is only intended to, in doing the utility model schematic illustration and explanation, not limit model of the present utility model
Enclose.Wherein：
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is structure enlarged diagram at Fig. 1 I；
Fig. 3 is the structural representation of the utility model flap；
Fig. 4 is prior art common structure schematic diagram.
In figure：1- valve bodies；2- valve shafts；3- flow inlets；4- flaps；41- rubber layers；42- rubber bumps；5- reverses bullet
Spring；6- rubber valve seats.
Embodiment
It is described in detail with reference to the accompanying drawings according to exemplary embodiment of the present utility model.Here it is to be noted that it
In accompanying drawing, structure and function substantially the same composition part are assigned by identical reference, and in order that specification more
Plus it is concise, eliminate the redundancy description on essentially the same composition part.
As shown in Figure 1, Figure 2 and Figure 3, bivalve butterfly DRV, including valve body 1, the inside of the valve body 1 is radially
Provided with valve shaft 2, the present embodiment is provided with two valve shafts 2, to facilitate selection to use the torsionspring 5 of different structure.
Provided with two symmetrically arranged flow inlets 3 below the valve shaft 2 in the valve body 1, water described in the present embodiment
Inflow entrance 3 is set to semicircle.
The valve shaft 2 is provided with two flaps 4 that are corresponding with the flow inlet 3 respectively and being rotated around the valve shaft 2,
Flap 4 described in the present embodiment corresponds to the flow inlet 3 also semicircular in shape, and the radius of the flap 4 compares the flow inlet 3
Radius it is big.
The torsionspring 5 for remaining closed the flap 4, the torsion bullet that the present embodiment is used are installed on the valve shaft 2
Spring 5 is only installed on a valve shaft 2.
The whole surface of the flap 4 is coated with rubber layer 41, the rubber layer 41 to be connect with the flow inlet 3
Rubber bumps 42 are provided with contacting surface, set the rubber bumps 42 sealing effectiveness can be made more preferable；The shore of the rubber layer 41
Hardness is 65 degree, and hardness is low, and muting function is more preferable during closure.
The present embodiment has cast out the structure of rubber valve seat 6 in the prior art, and the valve body 1 processes more simple, while
Eliminate the hardening of rubber valve seat 6 or aging phenomenon caused by follow-up spraying process high temperature；The surface of the flap 4 is complete
Portion's cladding rubber layer 41, also includes connecting in the hole of the valve shaft 2, the chemical property of rubber layer 41 is more stable, compares stainless steel certainly
More preferably, the flap 4 because coat the rubber layer 41 entirely, and the selection of flap 4 can drop for material acid-alkali-corrosive-resisting
Low, the material selection 45# steel of flap 4 described in the present embodiment reduces the cost of raw material, while production and processing technology is also more simple
It is single, the cost such as machining and heat treatment is reduced, greatly reduces manufacturing cost；Rubber layer 41 described in the present embodiment with it is described
The contact surface of flow inlet 3 is provided with rubber bumps 42, and when the flap 4 is closed, sealing effectiveness and muting function are more aobvious
Write.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (3)
1. bivalve butterfly DRV, including valve body, the inside of the valve body are being radially provided with valve shaft, the valve body in institute
State provided with two symmetrically arranged flow inlets below valve shaft, the valve shaft is corresponding with the flow inlet respectively provided with two
And the flap that can be rotated around the valve shaft, the torsionspring for remaining closed the flap is installed on the valve shaft, its feature
It is：The whole surface of the flap is coated with rubber layer.
2. bivalve butterfly DRV as claimed in claim 1, it is characterised in that：In the rubber layer with the current
Rubber bumps are provided with the contact surface of entrance.
3. bivalve butterfly DRV as claimed in claim 1, it is characterised in that：The shore hardness of the rubber layer is 65
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720243029.1U CN206539738U (en) | 2017-03-13 | 2017-03-13 | Bivalve butterfly DRV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720243029.1U CN206539738U (en) | 2017-03-13 | 2017-03-13 | Bivalve butterfly DRV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206539738U true CN206539738U (en) | 2017-10-03 |
Family
ID=59941694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720243029.1U Active CN206539738U (en) | 2017-03-13 | 2017-03-13 | Bivalve butterfly DRV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206539738U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571619A (en) * | 2018-05-28 | 2018-09-25 | 珠海格力电器股份有限公司 | A kind of valve, kitchen ventilator special service valve and range hood for ventilation pipe |
| CN109099194A (en) * | 2018-09-26 | 2018-12-28 | 内蒙古第机械集团股份有限公司 | A kind of check valve |
| CN109737245A (en) * | 2019-03-18 | 2019-05-10 | 中山大洋电机股份有限公司 | A kind of threading pipe fitting and fuel cell with return valve function |
-
2017
- 2017-03-13 CN CN201720243029.1U patent/CN206539738U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571619A (en) * | 2018-05-28 | 2018-09-25 | 珠海格力电器股份有限公司 | A kind of valve, kitchen ventilator special service valve and range hood for ventilation pipe |
| CN109099194A (en) * | 2018-09-26 | 2018-12-28 | 内蒙古第机械集团股份有限公司 | A kind of check valve |
| CN109737245A (en) * | 2019-03-18 | 2019-05-10 | 中山大洋电机股份有限公司 | A kind of threading pipe fitting and fuel cell with return valve function |
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| GR01 | Patent grant |