CN203051812U - Leakproof plunger valve - Google Patents
Leakproof plunger valve Download PDFInfo
- Publication number
- CN203051812U CN203051812U CN 201320029262 CN201320029262U CN203051812U CN 203051812 U CN203051812 U CN 203051812U CN 201320029262 CN201320029262 CN 201320029262 CN 201320029262 U CN201320029262 U CN 201320029262U CN 203051812 U CN203051812 U CN 203051812U
- Authority
- CN
- China
- Prior art keywords
- valve
- plunger
- seal ring
- leakproof
- auxiliary seal
- 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 discloses a valve, and particularly relates to a leakproof plunger valve. The leakproof plunger valve comprises a valve body and a valve cap, a valve hole is formed in the valve cap, a valve rod is connected with the valve hole in a sealing mode, a hand-operated wheel is connected with one end, stretching out of the valve hole, of the valve rod, and a plunger is arranged at the other end of the valve rod. The valve body is provided with a liquid inlet channel and a liquid outlet channel which are communicated with each other through a communicating channel, a groove is formed in the side wall of the communicating channel, and a sealing ring which is connected with the plunger in a sealing mode is embedded in the groove. The leakproof plunger valve is characterized in that a circular groove is formed in the plunger, an auxiliary sealing ring is embedded in the circular groove, the auxiliary sealing ring and the plunger are in interference fit, and a slant cut is formed in the auxiliary sealing ring. The leakproof plunger valve has the advantages of being good in sealing effect, long in service life and leakproof.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of plunger valve with anti-leak function.
Background technique
Plunger valve has advantage simple in structure, that manufacturing process is good because of it, uses very generally, and its working principle is that actuate valve stem is rotated by the operation handwheel, and then drives plunger and rise, descend and play the effect of opening and closing valve.Plunger valve of the prior art comprises valve body, be provided with feed pathway and liquid outlet channel in the valve body, feed pathway and liquid outlet channel are by the communication passage conducting, be connected with valve gap on the valve body, valve rod has been threaded in the valve gap, the valve rod lower end is connected with plunger, offer the valve opening that passes for valve rod on the valve gap, offer circular groove on the valve opening sidewall, be provided with O-ring seals in the circular groove, valve rod is connected with valve bonnet seal by this O-ring seals, plunger is arranged in communication passage, offer groove on the communication passage sidewall, be embedded with O-ring seals in the groove, plunger is tightly connected by this O-ring seals and communication passage.The deficiency of above-mentioned valve is: in the time of when in the circular groove that O-ring seals is installed into above-mentioned valve opening sidewall or in the groove of communication passage sidewall, O-ring seals easily is snapped bad; In addition, because feed pathway is positioned at the top of communication passage, and liquid outlet channel is positioned at the below of communication passage, when the plunger rising, when communication passage conducting feed pathway and liquid outlet channel, fluid pours into communication passage from feed pathway, because fluid washes away the high speed of O-ring seals from top to down, the O-ring seals that is positioned at the communication passage sidewall was lost efficacy, cause this plunger valve sealing effect poor, the seepage phenomenon occurs, reduce working life.
The model utility content
In order to overcome the deficiencies in the prior art, the utility model provides that a kind of sealing effect is good, the plunger valve of the anti-leak of long service life.
To achieve these goals, the technical solution adopted in the utility model is: a kind of plunger valve of anti-leak, comprise valve body and valve gap, offer valve opening on the valve gap, be sealedly connected with valve rod in the valve opening, the end that valve rod stretches out valve opening is connected with the operation handwheel, the other end of valve rod is provided with plunger, be provided with feed pathway and liquid outlet channel in the valve body, feed pathway and liquid outlet channel are by the communication passage conducting, the communication passage sidewall offers groove, be embedded with the seal ring that is connected with plunger seal in the groove, it is characterized in that: offer circular groove on the described plunger, be embedded with auxiliary seal ring in the circular groove, described auxiliary seal ring and plunger interference fit have angular cut on the described auxiliary seal ring.
As further setting of the present utility model, described auxiliary seal ring is made by polyformaldehyde material.
As further setting of the present utility model, described circular groove sidewall is connected with described plunger outer circumferential face by chamfering.
As further setting of the present utility model, the described chamfering number of degrees are 45～60 degree.
Adopt such scheme, the utility model is arranged with auxiliary seal ring at plunger, and this auxiliary seal ring is positioned at the top of O-ring seals, can reduce fluid to the washing away of O-ring seals, and prolongs its working life, further strengthens the sealing effect of valve body simultaneously; Have angular cut on the auxiliary seal ring and can increase the elastic deformability of auxiliary seal ring; The circular groove sidewall is connected with the plunger outer circumferential face and can plays transitional function when auxiliary seal ring is installed by chamfering, makes things convenient for cooperating of auxiliary seal ring and plunger circular groove; The auxiliary seal ring intensity height that polyformaldehyde material is made, anti-washing away, pressure resistance, long service life.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Accompanying drawing 1 is the utility model specific embodiment structural representation;
Accompanying drawing 2 is the utility model specific embodiment partial enlarged drawing.
Embodiment
Specific embodiment of the utility model is the plunger valve of anti-leak shown in Fig. 1-2, comprise valve body 1 and valve gap 2, offer valve opening on the valve gap 2, be sealedly connected with valve rod 3 in the valve opening, the end that valve rod 3 stretches out valve opening is connected with operation handwheel 4, the other end of valve rod 3 is provided with plunger 5, be provided with feed pathway 11 and liquid outlet channel 12 in the valve body 1, feed pathway 11 and liquid outlet channel 12 are by communication passage 13 conductings, communication passage 13 sidewalls offer groove 131, be embedded with the O-ring seals 132 that is tightly connected with plunger 5 in the groove 131, offer circular groove 51 on the plunger 5, be embedded with auxiliary seal ring 52 in the circular groove 51, auxiliary seal ring 52 and plunger 5 interference fit have angular cut on the auxiliary seal ring 52; This auxiliary seal ring 52 is made by polyformaldehyde material; Above-mentioned circular groove 51 sidewalls are connected as shown in Figure 2 with plunger 5 outer circumferential faces by chamfering 511, and these chamfering 511 number of degrees are 45～60 degree, are 45 degree in the present embodiment.
Adopt such scheme, the utility model is arranged with auxiliary seal ring 52 at plunger 5, and this auxiliary seal ring 52 is positioned at the top of O-ring seals 132, can reduce fluid washing away O-ring seals 132, prolong its working life, further strengthen the sealing effect of valve body 1 simultaneously; Have angular cut on the auxiliary seal ring 52 and can increase the elastic deformability of auxiliary seal ring 52; Circular groove 51 sidewalls are connected with plunger 5 outer circumferential faces and can play transitional function when auxiliary seal ring 52 is installed by chamfering 511, make things convenient for cooperating of auxiliary seal ring 52 and plunger 5 circular grooves 51; The auxiliary seal ring 52 intensity height that polyformaldehyde material is made, anti-washing away, pressure resistance, long service life.
Claims (4)
1. the plunger valve of an anti-leak, comprise valve body and valve gap, offer valve opening on the valve gap, be sealedly connected with valve rod in the valve opening, the end that valve rod stretches out valve opening is connected with the operation handwheel, the other end of valve rod is provided with plunger, be provided with feed pathway and liquid outlet channel in the valve body, feed pathway and liquid outlet channel are by the communication passage conducting, and the communication passage sidewall offers groove, is embedded with the seal ring that is connected with plunger seal in the groove, it is characterized in that: offer circular groove on the described plunger, be embedded with auxiliary seal ring in the circular groove, described auxiliary seal ring and plunger interference fit have angular cut on the described auxiliary seal ring.
2. the plunger valve of anti-leak according to claim 1, it is characterized in that: described auxiliary seal ring is made by polyformaldehyde material.
3. the plunger valve of anti-leak according to claim 1 and 2, it is characterized in that: described circular groove sidewall is connected with described plunger outer circumferential face by chamfering.
4. the plunger valve of anti-leak according to claim 3 is characterized in that: the described chamfering number of degrees are 45～60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320029262 CN203051812U (en) | 2013-01-18 | 2013-01-18 | Leakproof plunger valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320029262 CN203051812U (en) | 2013-01-18 | 2013-01-18 | Leakproof plunger valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051812U true CN203051812U (en) | 2013-07-10 |
Family
ID=48734766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320029262 Expired - Fee Related CN203051812U (en) | 2013-01-18 | 2013-01-18 | Leakproof plunger valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819304A (en) * | 2015-05-08 | 2015-08-05 | 余姚市普润净水设备有限公司 | Valve |
-
2013
- 2013-01-18 CN CN 201320029262 patent/CN203051812U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819304A (en) * | 2015-05-08 | 2015-08-05 | 余姚市普润净水设备有限公司 | Valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20190118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |