CN204004627U - A kind of novel pressure retaining valve - Google Patents
A kind of novel pressure retaining valve Download PDFInfo
- Publication number
- CN204004627U CN204004627U CN201420465631.6U CN201420465631U CN204004627U CN 204004627 U CN204004627 U CN 204004627U CN 201420465631 U CN201420465631 U CN 201420465631U CN 204004627 U CN204004627 U CN 204004627U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- valve body
- inner chamber
- seal ring
- 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
Links
Abstract
The utility model provides a kind of novel pressure retaining valve, comprise valve body, valve gap, valve rod and valve seat, valve gap, the inner chamber of valve body and valve seat communicates, between valve gap lower end and valve body upper end, be provided with seal ring, and seal ring is set on valve rod, the lower end of valve rod is provided with spool, the lower end of spool is connected with mobile piston, mobile piston inside is provided with a recess, the cross section of mobile piston is inverted trapezoidal, valve base cavity is divided into two-part, top is divided into inverted trapezoidal inner chamber, bottom is divided into rectangular inner cavity, mobile piston is arranged in the inverted trapezoidal inner chamber of valve seat, seal ring between spool and valve seat upper end wall, valve seat lower end is provided with relief valve, relief valve is provided with outlet, this outlet communicates with the inner chamber of valve seat.The beneficial effects of the utility model are: valve body is connected to valve gap, valve body is connected on valve seat, and this kind of structure installed, convenient disassembly, the working life of having improved valve; The inverted trapezoidal inner chamber of inclined-plane, mobile piston lower end and valve seat cooperatively interacts also can improve the tightness of whole workpiece.
Description
Technical field
The utility model belongs to valve technology field, especially relates to a kind of novel pressure retaining valve.
Background technique
Pressure retaining valve is common components on household cleaning machine, patent document CN201120061591.5 discloses a kind of washing machine low-pressure retaining valve, it is particularly in being shaped with clamp on described valve pocket outer wall, on end cap inwall, be shaped with draw-in groove, clamp matches with draw-in groove, and described valve pocket is the conical surface with relief valve and contacts, and on the conical surface of valve pocket, is shaped with caulking groove, mounting O-shaped rings in caulking groove, O type circle contacts with relief valve sealing.But there is following shortcoming in this disclosed pressure retaining valve: when the spool on valve rod moves down, can produce and clash into valve interior wall, can be by the knocking-on depression of valve interior wall when serious, and the working life of infringement valve body; Valve body and valve seat are structure as a whole, after when valve body or valve seat, one of them damages, its integral body will be abandoned, and convenient while installing.
Summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, easy for installation, improve the valve body novel pressure retaining valve in working life, be especially applicable to using on cleaning machine.
The technical solution of the utility model is: a kind of novel pressure retaining valve, comprise valve body, valve gap, valve rod and valve seat, described valve gap is fastened in valve body upper end, in valve body, be provided with valve rod, valve body lower end is provided with valve seat, valve gap, the inner chamber of valve body and valve seat communicates, described valve body upper side is along the circumferential direction provided with fixture block, valve body is provided with the draw-in groove matching with fixture block, between valve gap lower end and valve body upper end, be provided with seal ring, and seal ring is set on valve rod, described valve seat upper end outward edge is provided with the first step trough, outer peripheral the second step trough of valve body lower end is stuck in the first step trough, the lower end of described valve rod is provided with spool, the lower end of spool is connected with mobile piston, described mobile piston inside is provided with a recess, the cross section of described mobile piston is inverted trapezoidal, valve base cavity is divided into two-part, top is divided into inverted trapezoidal inner chamber, bottom is divided into rectangular inner cavity, described mobile piston is arranged in the inverted trapezoidal inner chamber of valve seat, seal ring between described spool and valve seat upper end wall, described valve seat lower end is provided with relief valve, described relief valve is provided with outlet, this outlet communicates with the inner chamber of valve seat, described valve rod is provided with spring, this spring one end is fixed in valve gap, the other end is fixed on spool upper end.
Further, between described valve seat and relief valve, be provided with seal ring.
Further, described valve seat outside is provided with tapered slope, and this tapered slope is stuck in the place, inclined-plane on relief valve inner chamber.
Further, in the upper end of described valve gap, be provided with screw thread, this screw thread is in order to be connected with pipeline.
Further, described valve rod is vulcanization of rubber roofbolt.
Further, between described valve gap outer upper end and lower end, be socketed with seal ring.
Further, described seal ring adopts NBR material.
Further, the material of described mobile piston is plastics.
Advantage and the good effect that the utlity model has are: owing to adopting technique scheme, valve body is connected to valve gap, valve body is connected on valve seat, and this kind of structure installed, convenient disassembly, the working life of having improved valve; Spool lower end is provided with seal ring, has effectively cushioned the pressure of spool to valve seat upper end wall, has reduced the impaired possibility of valve seat; The recess that mobile piston inside is provided with, has avoided spool face smooth not, affects air tightness of workpiece; The inverted trapezoidal inner chamber of inclined-plane, mobile piston lower end and valve seat cooperatively interacts also can improve the tightness of whole workpiece.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of valve rod of the present utility model and spool.
In figure:
1, valve body 2, valve gap 3, valve rod
4, valve seat 5, fixture block 6, draw-in groove
7, seal ring 8, spool 9, mobile piston
10, recess 11, spring 12, rectangular inner cavity
13, relief valve 14, tapered slope 15, outlet
Embodiment
As shown in Figure 1, 2,
The technical solution of the utility model is: a kind of novel pressure retaining valve, comprise valve body 1, valve gap 2, valve rod 3 and valve seat 4, described valve gap 2 is fastened in valve body 1 upper end, described valve gap is provided with screw thread in 2 upper ends, this screw thread is in order to be connected with pipeline, in valve body 1, be provided with valve rod 3, valve body 1 lower end is provided with valve seat 4, valve gap 2, the inner chamber of valve body 1 and valve seat 4 communicates, described valve body 1 upper side is along the circumferential direction provided with fixture block 5, valve body 1 is provided with the draw-in groove 6 matching with fixture block 5, between valve gap 2 lower ends and valve body 1 upper end, be provided with seal ring 7, and seal ring 7 is set on valve rod 1, described valve seat 4 upper end outward edges are provided with the first step trough, outer peripheral the second step trough in valve body 1 lower end is stuck in the first step trough, valve body for convenience detach and valve seat,
The lower end of described valve rod 3 is provided with spool 8, the lower end of spool 8 is connected with mobile piston 9, described mobile piston 9 inside are provided with a recess 10, avoided mobile piston 9 surfaces smooth not, affect air tightness of workpiece, the cross section of described mobile piston 9 is inverted trapezoidal, valve seat 4 inner chambers are divided into two-part, top is divided into inverted trapezoidal inner chamber 11, bottom is divided into rectangular inner cavity 12, described mobile piston 9 is arranged in the inverted trapezoidal inner chamber 11 of valve seat 4, seal ring 7 between described spool 8 and valve seat 4 upper end wall, described valve seat 4 lower ends are provided with relief valve 13, between described valve seat 4 and relief valve 13, be provided with seal ring 7, described valve seat 4 outsides are provided with tapered slope 14, this tapered slope 14 is stuck in the place, inclined-plane on relief valve 13 inner chambers, described relief valve 13 is provided with outlet 15, this outlet 15 communicates with the inner chamber of valve seat 2, described valve rod 3 is provided with spring 11, these spring 11 one end are fixed in valve gap 2, the other end is fixed on spool 8 upper ends.
In the present embodiment, described valve rod 3 is vulcanization of rubber roofbolt, is socketed with seal ring 7 between described valve gap 2 outer upper end and lower end, and described seal ring 7 adopts NBR material, and the material of described mobile piston 9 is plastics.
The working principle of this example: valve body 1 is connected on valve gap 2, valve body 1 is connected on valve seat 4, this kind of structure installed, convenient disassembly, the working life of having improved valve; Spool 8 lower ends are provided with seal ring 7, have effectively cushioned spool 8 pressure to valve seat 4 upper end wall, have reduced the impaired possibility of valve seat 4; The recess 10 that mobile piston 9 inside are provided with, has avoided mobile piston 9 surfaces smooth not, affects air tightness of workpiece; The inverted trapezoidal inner chamber of mobile piston 9 inclined-planes, lower end and valve seat 4 cooperatively interacts and also can improve the tightness of whole workpiece.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (8)
1. a novel pressure retaining valve, comprise valve body, valve gap, valve rod and valve seat, it is characterized in that: described valve gap is fastened in valve body upper end, in valve body, be provided with valve rod, valve body lower end is provided with valve seat, valve gap, the inner chamber of valve body and valve seat communicates, described valve body upper side is along the circumferential direction provided with fixture block, valve body is provided with the draw-in groove matching with fixture block, between valve gap lower end and valve body upper end, be provided with seal ring, and seal ring is set on valve rod, described valve seat upper end outward edge is provided with the first step trough, outer peripheral the second step trough of valve body lower end is stuck in the first step trough, the lower end of described valve rod is provided with spool, the lower end of spool is connected with mobile piston, described mobile piston inside is provided with a recess, the cross section of described mobile piston is inverted trapezoidal, valve base cavity is divided into two-part, top is divided into inverted trapezoidal inner chamber, bottom is divided into rectangular inner cavity, described mobile piston is arranged in the inverted trapezoidal inner chamber of valve seat, seal ring between described spool and valve seat upper end wall, described valve seat lower end is provided with relief valve, described relief valve is provided with outlet, this outlet communicates with the inner chamber of valve seat, described valve rod is provided with spring, this spring one end is fixed in valve gap, the other end is fixed on spool upper end.
2. a kind of novel pressure retaining valve according to claim 1, is characterized in that: between described valve seat and relief valve, be provided with seal ring.
3. a kind of novel pressure retaining valve according to claim 2, is characterized in that: described valve seat outside is provided with tapered slope, and this tapered slope is stuck in the place, inclined-plane on relief valve inner chamber.
4. a kind of novel pressure retaining valve according to claim 3, is characterized in that: in the upper end of described valve gap, be provided with screw thread, this screw thread is in order to be connected with pipeline.
5. a kind of novel pressure retaining valve according to claim 4, is characterized in that: described valve rod is vulcanization of rubber roofbolt.
6. a kind of novel pressure retaining valve according to claim 5, is characterized in that: between described valve gap outer upper end and lower end, be socketed with seal ring.
7. a kind of novel pressure retaining valve according to claim 6, is characterized in that: described seal ring adopts NBR material.
8. a kind of novel pressure retaining valve according to claim 7, is characterized in that: the material of described mobile piston is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420465631.6U CN204004627U (en) | 2014-08-18 | 2014-08-18 | A kind of novel pressure retaining valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420465631.6U CN204004627U (en) | 2014-08-18 | 2014-08-18 | A kind of novel pressure retaining valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004627U true CN204004627U (en) | 2014-12-10 |
Family
ID=52044630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420465631.6U Expired - Fee Related CN204004627U (en) | 2014-08-18 | 2014-08-18 | A kind of novel pressure retaining valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090577A (en) * | 2015-08-26 | 2015-11-25 | 浙江新昌别克跃电动工具有限公司 | Overflow and low-pressure-retaining integrated type safety valve |
| CN108843648A (en) * | 2018-09-19 | 2018-11-20 | 浙江兄弟之星汽配有限公司 | A kind of overflow valve and its overflow valve deck |
-
2014
- 2014-08-18 CN CN201420465631.6U patent/CN204004627U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090577A (en) * | 2015-08-26 | 2015-11-25 | 浙江新昌别克跃电动工具有限公司 | Overflow and low-pressure-retaining integrated type safety valve |
| CN108843648A (en) * | 2018-09-19 | 2018-11-20 | 浙江兄弟之星汽配有限公司 | A kind of overflow valve and its overflow valve deck |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204004627U (en) | A kind of novel pressure retaining valve | |
| CN202580030U (en) | Bud-shaped sealing ring | |
| CN203868315U (en) | Double-side positioning sealing ring | |
| CN203979528U (en) | A kind of one-way valve | |
| CN203384365U (en) | Waterproof sealing structure with integration between plastic fastener and sealing ring | |
| CN204059532U (en) | A kind of toilet mounting mat | |
| CN203750787U (en) | Pressure plate for gluing machine | |
| CN204677881U (en) | A kind of one-way valve with elastic sealing structure | |
| CN104913109A (en) | One-way valve with elastic sealing structure | |
| CN203051750U (en) | Combined type sealing element | |
| CN201747940U (en) | Plunger piston valve | |
| CN105221512A (en) | A kind of oil hydraulic cylinder new type sealing device | |
| CN103061842A (en) | Valve oil seal | |
| CN204003748U (en) | Thin cylinder | |
| CN105276184A (en) | Oil seal | |
| CN203051812U (en) | Leakproof plunger valve | |
| CN204153144U (en) | A kind of closure seal ring | |
| CN204572768U (en) | A kind of one-direction bearing structure | |
| CN203880152U (en) | Sprayer one-way valve | |
| CN203421198U (en) | Gate valve | |
| CN204402829U (en) | A kind of large-flow plunger pump fluid end with identical combination valve group structure | |
| CN203453181U (en) | Sustained-release cylinder | |
| CN203321870U (en) | Sealing structure of booster pump for water purifier | |
| CN202007770U (en) | Plunger sealing piece for high-pressure constant flow pump of liquid chromatograph | |
| CN204140880U (en) | The seal ring of the multiple step of a kind of outer round belt |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160818 |