CN209115722U - A kind of PVDF diaphragm valve - Google Patents
A kind of PVDF diaphragm valve Download PDFInfo
- Publication number
- CN209115722U CN209115722U CN201821841555.9U CN201821841555U CN209115722U CN 209115722 U CN209115722 U CN 209115722U CN 201821841555 U CN201821841555 U CN 201821841555U CN 209115722 U CN209115722 U CN 209115722U
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- China
- Prior art keywords
- valve
- diaphragm
- flap
- pvdf
- rubber pad
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Abstract
The utility model discloses a kind of PVDF diaphragm valves, including valve body, the valve body upper end is provided with valve deck, and the valve deck upper inner is provided with valve stem nut, is provided with valve rod in the valve stem nut, the valve stem tip is equipped with handwheel, the handwheel upper end is provided with clamping nut, and the screw rod lower end is provided with flap, and the flap lower end is provided with diaphragm, it is provided with rubber pad on the downside of the diaphragm, and the flap is internally provided with straight pin.The utility model passes through rotation handwheel, valve rod is set to rotate and move down in valve stem nut, flap is driven to move down, the active force pushed is generated to diaphragm, and then close valve deck and valve body, straight pin and rubber pad are additionally provided in flap, straight pin lower end makes straight pin compress effect to rubber pad generation during flap moves down, to enhance the sealing effect of the diaphragm valve, and the diaphragm valve structure is simple, is made using PVDF material, corrosion resistance is stronger, a variety of media can be applicable in, use scope is wider.
Description
Technical field
The utility model relates to a kind of control valve, specifically a kind of PVDF diaphragm valve.
Background technique
Diaphragm valve is to make opening and closing element closed flow, truncation fluid with diaphragm and separate body cavity and valve deck inner cavity
Shut-off valve.The structure type of diaphragm valve differs widely with general valve, is a kind of novel valve, is a kind of cutting for special shape
Disconnected valve, its opening and closing element is one piece of diaphragm made of soft material, and body cavity and valve deck inner cavity and driving part are separated,
Now it is widely used in every field.There are ridge type, cut-off type, flashboard type etc. by structure type point.By driving method point have manually,
Pneumatically, electronic.
Although existing diaphragm valve is widely used, but the problem bad there are still obturation effect.Therefore, ability
Field technique personnel provide a kind of PVDF diaphragm valve, to solve the problems mentioned in the above background technology.
Summary of the invention
The purpose of this utility model is to provide a kind of PVDF diaphragm valves, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions:
A kind of PVDF diaphragm valve, including valve body, the valve body upper end are provided with valve deck, and the valve deck upper inner is provided with
Valve stem nut is provided with valve rod in the valve stem nut, and the valve stem tip is equipped with handwheel, and the handwheel upper end is provided with pressure
Tight nut, the valve rod lower end are provided with flap, and the flap lower end is provided with diaphragm, is provided with rubber on the downside of the diaphragm
Pad, and the flap is internally provided with straight pin, the straight pin lower end is contacted through diaphragm with rubber pad.
As a further solution of the present invention: being connected between the valve deck and valve body by soket head cap screw, and interior
Hex screw end thread is connected with nut.
The valve body two sides are provided with multiple connecting holes, the connecting hole as a further solution of the present invention,
The annular setting on body wall.
The straight pin lower end is provided with circular slab as a further solution of the present invention, and the circular slab supports
It is pressed on the upside of rubber pad.
The valve body, flap and valve deck are all made of PVDF material and are made as a further solution of the present invention,.
The rubber pad is made of EPDM material as a further solution of the present invention,.
Compared with prior art, the utility model has the beneficial effects that
The utility model makes valve rod rotate and move down in valve stem nut by rotation handwheel, and flap is driven to move down,
The active force pushed is generated to diaphragm, and then closes valve deck and valve body, is additionally provided with straight pin and rubber pad, straight pin in flap
Lower end makes straight pin compress effect to rubber pad generation during flap moves down, to enhance the sealing effect of the diaphragm valve
Fruit, and the diaphragm valve structure is simple, is made using PVDF material, corrosion resistance is stronger, can be applicable in a variety of media, use scope
It is wider.
Detailed description of the invention
Fig. 1 is a kind of schematic view of the front view of PVDF diaphragm valve.
Fig. 2 is a kind of side structure schematic view of PVDF diaphragm valve.
Fig. 3 is a kind of overlooking structure diagram of PVDF diaphragm valve.
In figure: 1- valve body, 2- rubber pad, 3- diaphragm, 4- flap, 5- straight pin, 6- valve rod, 7- valve stem nut, 8- valve deck,
9- handwheel, 10- clamping nut, 11- soket head cap screw, 12- nut.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~3, in the utility model embodiment, a kind of PVDF diaphragm valve, including valve body 1, on the valve body 1
End is provided with valve deck 8, and 8 upper inner of valve deck is provided with valve stem nut 7, valve rod 6, institute are provided in the valve stem nut 7
It states 6 top of valve rod and handwheel 9 is installed, 9 upper end of handwheel is provided with clamping nut 10, and 6 lower end of valve rod is provided with flap
4,4 lower end of flap is provided with diaphragm 3, rubber pad 2 is provided on the downside of the diaphragm 3, and the flap 4 is internally provided with circle
Pin 5,5 lower end of straight pin are contacted through diaphragm 3 with rubber pad 2.
It is connected between the valve deck 8 and valve body 1 by soket head cap screw 11, and 11 end thread of soket head cap screw is connected with
Nut 12.
1 two sides of valve body are provided with multiple connecting holes, connecting hole annular setting on 1 side wall of valve body.
5 lower end of straight pin is provided with circular slab, and the circular slab is pressed on 2 upside of rubber pad.
The valve body 1, flap 4 and valve deck 8 are all made of PVDF material and are made.
The rubber pad 2 is made of EPDM material.
The working principle of the utility model is:
When the utility model is used, rotation handwheel 9, rotates valve rod 6 in the valve stem nut 7 in valve deck 8, valve rod 6
It is threadedly coupled rotation with valve stem nut 7, moves down valve rod 6, so that flap 4 be driven to move down, and pushing is generated to diaphragm 3
Active force, and then the connecting cavity between valve deck 8 and valve body 1 is closed, handwheel 9 is rotated backward, diaphragm valve can be opened；It is closing
In the process, straight pin 5 and rubber pad 2 are additionally provided in flap 4,5 lower end of straight pin makes cylinder during flap 4 moves down
Pin 5 compresses effect to the generation of rubber pad 2, to enhance the sealing effect of the diaphragm valve, and the diaphragm valve structure is simple, uses
PVDF material is made, and corrosion resistance is stronger, can be applicable in a variety of media, and use scope is wider.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of PVDF diaphragm valve, including valve body, which is characterized in that the valve body upper end is provided with valve deck, the valve deck top
Inside is provided with valve stem nut, is provided with valve rod in the valve stem nut, and the valve stem tip is equipped with handwheel, on the handwheel
End is provided with clamping nut, and the valve rod lower end is provided with flap, and the flap lower end is provided with diaphragm, sets on the downside of the diaphragm
It is equipped with rubber pad, and the flap is internally provided with straight pin, the straight pin lower end is contacted through diaphragm with rubber pad.
2. a kind of PVDF diaphragm valve according to claim 1, which is characterized in that pass through interior six between the valve deck and valve body
The connection of angle screw, and soket head cap screw end thread is connected with nut.
3. a kind of PVDF diaphragm valve according to claim 1, which is characterized in that the valve body two sides are provided with multiple connections
Hole, connecting hole annular setting on body wall.
4. a kind of PVDF diaphragm valve according to claim 1, which is characterized in that the straight pin lower end is provided with circle
Plate, the circular slab are pressed on the upside of rubber pad.
5. a kind of PVDF diaphragm valve according to claim 1, which is characterized in that the valve body, flap and valve deck are all made of
PVDF material is made.
6. a kind of PVDF diaphragm valve according to claim 1, which is characterized in that the rubber pad uses EPDM material system
At.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821841555.9U CN209115722U (en) | 2018-11-09 | 2018-11-09 | A kind of PVDF diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821841555.9U CN209115722U (en) | 2018-11-09 | 2018-11-09 | A kind of PVDF diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115722U true CN209115722U (en) | 2019-07-16 |
Family
ID=67204442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821841555.9U Active CN209115722U (en) | 2018-11-09 | 2018-11-09 | A kind of PVDF diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209115722U (en) |
-
2018
- 2018-11-09 CN CN201821841555.9U patent/CN209115722U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 325000 no.4269 Binhai Third Road, Wenzhou Economic and Technological Development Zone, Zhejiang Province Patentee after: Teflon Group Co., Ltd Address before: 325024 Mingzhu Road, Longwan Industrial Park, Longwan District, Wenzhou City, Zhejiang Province Patentee before: NFL VALVE Co.,Ltd. |
|
| CP03 | Change of name, title or address |