CN203239990U - Pneumatic diaphragm valve - Google Patents
Pneumatic diaphragm valve Download PDFInfo
- Publication number
- CN203239990U CN203239990U CN 201320254091 CN201320254091U CN203239990U CN 203239990 U CN203239990 U CN 203239990U CN 201320254091 CN201320254091 CN 201320254091 CN 201320254091 U CN201320254091 U CN 201320254091U CN 203239990 U CN203239990 U CN 203239990U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- spool
- counterbore
- diaphragm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a pneumatic diaphragm valve. The pneumatic diaphragm valve is characterized in that a counter bore is formed in a valve seat, a copper shaft sleeve which is matched with a step of the counter bore in a limiting mode is arranged in the counter bore, the copper shaft sleeve is further matched with the diameter of a valve rod, a clamping spring is arranged below the copper shaft sleeve, the clamping spring is fixed in a clamping spring groove formed in the inner wall of the counter bore, and one end of the valve rod penetrates through the copper shaft sleeve to be fixedly connected with a valve core. The pneumatic diaphragm valve has the advantages that due to the facts that the counter bore is formed in the valve seat and the copper shaft sleeve is arranged in the counter bore, the frictional resistance of the valve rod is reduced, the valve rod is prevented from being blocked when the valve rod is driven by air pressure to open or close the valve, the function that the valve rod is located can be achieved, the valve rod is prevented from inclining, and the usage stability of the valve is guaranteed.
Description
Technical field
The utility model relates to a kind of membrane valve, relates in particular a kind of pneumatic diaphragm valve, is mainly used in valve field.
Background technique
Membrane valve because of its unique construction with and particular principles, it is mainly used in pharmacy and the bioengineering field of aseptic operating mode.Existing membrane valve mainly includes valve body, valve seat, block, valve rod, spool and diaphragm, the through hole that valve rod passes on the valve seat is fixedly connected with spool, diaphragm and spool fix, because valve rod passes the through hole of valve seat, when the to-and-fro motion of air pressure actuate valve stem, the surface friction drag at valve rod and valve seat through-hole place is larger, easily causes axle sleeve to come off and causes valve rod to tilt, and affects the keying of diaphragm; Secondly, existing diaphragm is fixedly connected with spool, when valve opening or closure the time, is subjected to the impact of air pressure, and valve rod is larger to the impact force of diaphragm, easily valve is caused damage.
The model utility content
In order to solve above technical problem, the utility model provides a kind of surface friction drag that can effectively reduce valve rod and valve seat through-hole place, is convenient to valve rod is positioned and can carry out the impact force of valve rod a kind of pneumatic diaphragm valve of buffer protection valve.
For solving above technical problem, the technological scheme that the utility model is taked is a kind of pneumatic diaphragm valve, include valve body, valve seat, block, valve rod, spool and diaphragm, valve seat is fixed on the valve body and diaphragm places between valve body and the valve seat, spool places in the valve seat, valve rod one end passes valve seat and links to each other with spool, and the other end places in the block; It is characterized in that described valve seat is provided with counterbore, in counterbore, be provided with the counterbore ladder mutually spacing that cooperate and with the stem diameter copper bush that is complementary, below copper bush, be provided with jump ring, this jump ring is fixed in the jump-ring slot of counterbore inwall, and described valve rod one end passes copper bush and is fixedly connected with spool.
Further, the center of described diaphragm is provided with connecting base, be provided with connecting bolt at connecting base, this connecting bolt is threaded with thread bush, be provided with at described spool and connect counterbore and its both sides are provided with the limit dais mutually spacing with the valve base inner wall step, described connecting base places and connects in the counterbore and connecting bolt passes spool with thread bush and places the blind hole of valve rod end interior by bearing pin and valve rod gun iron link.Pin shaft hole on the described thread bush is that rectangle arc hole makes the thread bush can be along the bearing pin upper and lower displacement.
Further, described bearing pin is for being hollow shape and its sidewall is provided with opening.
The beneficial effects of the utility model are to be provided with counterbore at valve seat, and in counterbore copper bush are set, and valve rod drive to be opened or during throttle down at air pressure like this, but capable of reducing friction resistance not only prevents stuck; Simultaneously, also can play positioning action to valve rod, avoid valve rod run-off the straight dislocation, guarantee the stability in use of valve.
Description of drawings
Fig. 1 is the sectional structure chart of a kind of pneumatic diaphragm valve of the utility model embodiment
Embodiment
Below in conjunction with accompanying drawing the utility model mode of execution is described further:
As shown in Figure 1, the utility model is a kind of pneumatic diaphragm valve, include valve body 1, valve seat 2, block 3, valve rod 4, spool 5 and diaphragm 6, valve seat 2 is fixed on the valve body 1 and diaphragm 6 places between valve body 1 and the valve seat 2, spool 5 places in the valve seat 2, valve rod 4 one ends pass valve seat 2 and link to each other with spool 5, and the other end places in the block 3; Described valve seat 2 is provided with counterbore 21, in counterbore 21, be provided with counterbore 21 ladders mutually spacing that cooperate and with the valve rod 4 diameters copper bush 22 that is complementary, below copper bush 22, be provided with jump ring 23, this jump ring 23 is fixed in the jump-ring slot 24 of counterbore 21 inwalls, and described valve rod 4 one ends pass copper bush 22 and are fixedly connected with spool 5; Be provided with counterbore 21 at valve seat 2, and at the counterbore 21 interior copper bushes 22 that arrange, valve rod 4 drives at air pressure and opens or during throttle down like this, but capable of reducing friction resistance not only prevents stuck; Simultaneously, also can play positioning action to valve rod 4, avoid valve rod 4 run-off the straights dislocation, guarantee the stability in use of valve.
In the present embodiment, because valve is when opening or closing, the pressure of air pressure is larger, easy like this valve rod 4 and the spool 5 of making, the joint of diaphragm 6 is caused loosening or is come off, affect the stability in use of valve, the center of described diaphragm 6 is provided with connecting base 61, be provided with connecting bolt 62 at connecting base 61, this connecting bolt 62 is threaded with thread bush 63, be provided with at described spool 5 and connect counterbore 51 and its both sides and be provided with the limit dais 52 mutually spacing with valve seat 2 inwall steps 25, described connecting base 61 places and connects in the counterbore 51 and connecting bolt 62 and thread bush 63 pass spool 5 and place in the blind hole 41 of valve rod 4 ends by bearing pin 42 and valve rod 4 gun iron links, the pin shaft hole 631 on the described thread bush 63 for rectangle arc hole makes thread bush 63 can be along bearing pin 42 upper and lower displacements; At spool 5 connection counterbore 51 is set, and in spool 5 both sides limit dais 52 is set, when mounted, the connecting base 61 with connecting bolt 62 on the diaphragm 6 is inserted in the connection counterbore 51 of spools 5, make connecting bolt 62 insert the blind hole 41 of valve rods 4 ends and be fixedly connected with by bearing pin 42; In use, when 4 motion of gas-powered valve rod, the diaphragm 6 that is connected with valve rod 4 can be with valve rod 4 synchronous interactions, and owing to the connecting base 61 on the diaphragm 6 places in the connection counterbore 51 of spool 5, can make like this spool 5 and diaphragm 6 synchronous shift, when the limit dais 52 that promotes certain altitude back valve core 5 both sides and step 25 in the valve seat 2 compress mutually, played the effect of stroke limit; Because the pin shaft hole 631 on the thread bush 63 is rectangle arc hole; diaphragm 6 is when rising with valve rod 4 or resetting like this; larger such as impact force; thread bush 63 just can be along pin shaft hole 631 upper and lower displacements; alleviation is to the impact force of diaphragm 6; thereby play the effect of protection diaphragm 6, improve the effect of valve stability.
In the present embodiment, in order farthest to eliminate the excessive shock effect to valve of atmospheric pressure, described bearing pin 42 is for being hollow shape and its sidewall is provided with opening; Bearing pin 42 is made as the hollow body of opening, thread bush 63 and the joint of valve rod 4 are stressed when excessive, and the opening of bearing pin 42 can inwardly shrink, and plays buffer function.
Above-described embodiment should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.
Claims (3)
1. pneumatic diaphragm valve, include valve body, valve seat, block, valve rod, spool and diaphragm, valve seat is fixed on the valve body and diaphragm places between valve body and the valve seat, and spool places in the valve seat, valve rod one end passes valve seat and links to each other with spool, and the other end places in the block; It is characterized in that described valve seat is provided with counterbore, in counterbore, be provided with the counterbore ladder mutually spacing that cooperate and with the stem diameter copper bush that is complementary, below copper bush, be provided with jump ring, this jump ring is fixed in the jump-ring slot of counterbore inwall, and described valve rod one end passes copper bush and is fixedly connected with spool.
2. a kind of pneumatic diaphragm valve according to claim 1, the center that it is characterized in that described diaphragm is provided with connecting base, be provided with connecting bolt at connecting base, this connecting bolt is threaded with thread bush, be provided with at described spool and connect counterbore and its both sides are provided with the limit dais mutually spacing with the valve base inner wall step, described connecting base places and connects in the counterbore and connecting bolt passes spool with thread bush and places the blind hole of valve rod end interior by bearing pin and valve rod gun iron link; Pin shaft hole on the described thread bush is that rectangle arc hole makes the thread bush can be along the bearing pin upper and lower displacement.
3. a kind of pneumatic diaphragm valve according to claim 2 is characterized in that described bearing pin is for being hollow shape and its sidewall is provided with opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320254091 CN203239990U (en) | 2013-05-09 | 2013-05-09 | Pneumatic diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320254091 CN203239990U (en) | 2013-05-09 | 2013-05-09 | Pneumatic diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239990U true CN203239990U (en) | 2013-10-16 |
Family
ID=49317288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320254091 Expired - Fee Related CN203239990U (en) | 2013-05-09 | 2013-05-09 | Pneumatic diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239990U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422906A (en) * | 2014-09-11 | 2016-03-23 | 费斯托股份有限两合公司 | Diaphragm valve |
| CN108662191A (en) * | 2017-03-30 | 2018-10-16 | 苏州巴恩斯通环保科技有限公司 | A kind of diaphragm valve |
| CN111183306A (en) * | 2017-09-25 | 2020-05-19 | 株式会社富士金 | Diaphragm valve |
| CN113757411A (en) * | 2021-11-08 | 2021-12-07 | 南京道隆生物科技有限公司 | Pneumatic diaphragm valve intelligent control system and method based on Internet of things |
-
2013
- 2013-05-09 CN CN 201320254091 patent/CN203239990U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422906A (en) * | 2014-09-11 | 2016-03-23 | 费斯托股份有限两合公司 | Diaphragm valve |
| CN108662191A (en) * | 2017-03-30 | 2018-10-16 | 苏州巴恩斯通环保科技有限公司 | A kind of diaphragm valve |
| CN111183306A (en) * | 2017-09-25 | 2020-05-19 | 株式会社富士金 | Diaphragm valve |
| CN113757411A (en) * | 2021-11-08 | 2021-12-07 | 南京道隆生物科技有限公司 | Pneumatic diaphragm valve intelligent control system and method based on Internet of things |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WENZHOU NUOMENG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHEJIANG RITE TECHNOLOGY CO., LTD. Effective date: 20140304 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140304 Address after: 325000, Zhejiang, Wenzhou economic and Technological Development Zone, Binhai District, 67 Indus Road, the first floor of the East Patentee after: ZHEJIANG RITE TECHNOLOGY CO., LTD. Address before: 325000 Zhejiang city of Wenzhou province Wenzhou City Economic and Technological Development Zone Street 73 Industrial Zone sand road No. 58 Patentee before: Zhejiang Rite Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20210509 |