CN2694014Y - Closing gun stopping machine type relief valve decompressing by gap used in high pressure washer pump - Google Patents
Closing gun stopping machine type relief valve decompressing by gap used in high pressure washer pump Download PDFInfo
- Publication number
- CN2694014Y CN2694014Y CN 200320122825 CN200320122825U CN2694014Y CN 2694014 Y CN2694014 Y CN 2694014Y CN 200320122825 CN200320122825 CN 200320122825 CN 200320122825 U CN200320122825 U CN 200320122825U CN 2694014 Y CN2694014 Y CN 2694014Y
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- ring
- sealing ring
- spool
- valve
- high pressure
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- Expired - Lifetime
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Abstract
The utility model relates to a closing gun stopping machine type relief valve decompressing by gap used in high pressure washer pump. The model is characterized in that the model is composed of a valve core, a plug, a large sealing packing ring, a left sealing ring, a left shim, a spring, a right shim, a right sealing ring, a valve cover and a small sealing ring. The large sealing packing ring is arranged on the outer ring of the plug. The left sealing ring is arranged on the inner ring of the plug. The valve core is arranged in the plug and the valve cover. The spring is provided outside the valve core. The two ends of the spring are provided with the left shim and the right shim. The right sealing ring is arranged on the inner ring of the valve cover. The small sealing ring is provided outside the valve cover. The top of the valve cover is a valve core case seal that is a cylinder with a two-stage cone and the valve core case seal is on the left end of the inner bore of the valve cover. The utility model has the advantages of a simple structure, the stable working and the realizing of the low pressure maintaining.
Description
Technical field
The utility model relates to a kind of closing gun stopping machine type relief valve that is used for leaning in the high pressure washer pump gap pressure release, belongs to the relief valve technical field.
Background technique
Be used for the interior relief valve of high pressure washer pump at present as shown in Figure 3, it is by plug screw 15, seal ring 16, seal ring 17, pad 18, spring 19, spool 20, bracing ring 21, valve pocket 22, seal ring 23, seal ring 24, back-up ring 25 is formed, seal ring 24 separates zone of high pressure and low pressure area during work, when cleaning machine gun, system pressure raises, promoting spool 20 is moved to the left, during pressure height to setting value, when the overflow hole 26 on the spool 20 moves on to seal ring 24 left sides, cause the zone of high pressure to communicate with low pressure area, system begins overflow, the mobile drive sensitive switch action of spool 20 simultaneously, cut off system power supply, system quits work, pressure descends, spool 20 moves right under the effect of spring 19 overflow hole 26 sealed circles 24 is covered, system enters packing state, because the lifting surface area of spool 20 when working with packing state is identical, so dwell pressure must be higher than working pressure, so just can not realize low pressure holding, very big to the destructiveness of jetting machine, in addition, the high pressurize of system requires motor that bigger starting torque is arranged, and this is another unfavorable factor to complete machine work.
Summary of the invention
The purpose of this utility model is a kind of closing gun stopping machine type relief valve that is used for leaning in the high pressure washer pump gap pressure release that can realize low pressure holding of invention.
For realizing above purpose; the technical solution of the utility model provides a kind of closing gun stopping machine type relief valve that is used for leaning in the high pressure washer pump gap pressure release; it is characterized in that; it is by spool; plug screw; big sealing ring; left side seal ring; left side pad; spring; right pad; right seal ring; valve pocket; small sealing ring is formed; big sealing ring places the outer ring of plug screw; left side seal ring places the inner ring of plug screw; spool places in plug screw and the valve pocket; spool is equipped with spring outward; the two ends of spring are equipped with left pad and right pad; right seal ring places the inner ring of valve pocket, and valve pocket is equipped with small sealing ring outward, and the top is the endoporus left end that the valve core case of cylindrical body band two-stage cone is enclosed in valve pocket.
The utility model has the advantages that simple in structure, working stability, can realize low pressure holding.
Description of drawings
Fig. 1 is the closing gun stopping machine type structure of relief valve schematic representation that is used for leaning in the high pressure washer pump gap pressure release;
Fig. 2 is the rigging position schematic representation of relief valve in high pressure washer pump;
Fig. 3 is the former structure of relief valve schematic representation that is used in the high pressure washer pump.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1; for being used for leaning in the high pressure washer pump closing gun stopping machine type structure of relief valve schematic representation of gap pressure release, form by spool 1, plug screw 2, big sealing ring 3, left seal ring 4, left pad 5, spring 6, right pad 7, right seal ring 8, valve pocket 9, small sealing ring 10.
Select for use the plastics manufacturing by spool 1, plug screw 2, valve pocket 9, make spool 1 be cylindrical body, in the middle of a step is arranged, the top of spool 1 is the seat envelope of cylindrical body band two-stage cone.
Outsourcing left side seal ring 2, left pad 3, big sealing ring 3, spring 6, right pad 7, right seal ring 8, small sealing ring 10.
Big sealing ring 3 is enclosed within the outer ring of plug screw 2, seal ring 4 pads in a left side are at the inner ring of plug screw 2, pack into 2 li of plug screws after loading onto right pad 7, spring 7 and left pad 3 outside the spool 1 step place, with the inner ring of right seal ring 8 pads at valve pocket 9, the cone seat of the endoporus of valve pocket 9 and spool 1 binds, the valve pocket 9 outer small sealing rings 10 of loading onto.
As shown in Figure 2, be the rigging position schematic representation of relief valve in high pressure washer pump, the relief valve 13 that assembles is put in the hole of pump 11, fixing with being threaded, end is equipped with sensitive switch assembly 12 in the lower-left of relief valve 13, is equipped with one-way valve 14 on the right of relief valve 13.
The right-hand member of relief valve 13 communicates with the high pressure of washing machine, left end communicates with low pressure area, when washing machine is worked, the bind interior nose end of valve pocket 9 of spool 1 head seat, high pressure and low pressure are spaced, when washing machine cuts out spray gun, the pressure of washing machine is higher than setting pressure, hydraulic pressure is being tried hard to recommend spool 1 to left movement, when spool 1 top external cylindrical surface moved on to right seal ring 8 left position, the zone of high pressure was communicated with low pressure area, system's overflow, spool 1 drives the power supply that sensitive switch assembly 12 cuts off system simultaneously, and system dynamic partly quits work; System pressure descends, spool 1 moves right under the effect of spring 7, when right seal ring 8 is sealed the external cylindrical surface on spool 1 top, system stops release, be in packing state, spool 1 and valve pocket 10 are by the seal ring sealing, because the area of the compression area of 1 this moment of spool when sealing greater than seat during pressurize, so the pressure of packing state is lower than working pressure, this has just realized low pressure holding.When washing machine was shot once more, system pressure dropped to rapidly near intake pressure, spool 1 rapid reset seat envelope, and mobile microswitch 12 closures that make of while spool 1, system gets electric work, and pressure recovery is to working pressure.
Claims (1)
1. one kind is used for the interior closing gun stopping machine type relief valve by the gap pressure release of high pressure washer pump; it is characterized in that; it is by spool (1); plug screw (2); big sealing ring (3); left side seal ring (4); left side pad (5); spring (6); right pad (7); right seal ring (8); valve pocket (9); small sealing ring (10) is formed; big sealing ring (3) places the outer ring of plug screw (2); left side seal ring (4) places the inner ring of plug screw (2); spool (1) places plug screw (2); and in the valve pocket (9); the outer spring (6) that is equipped with of spool (1); the two ends of spring (6) are equipped with left pad (5) and right pad (7); right seal ring (8) places the inner ring of valve pocket (9); the outer small sealing ring (10) that is equipped with of valve pocket (9), top are the endoporus left end that spool (1) seat of cylindrical body band two-stage cone is enclosed in valve pocket (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320122825 CN2694014Y (en) | 2003-12-25 | 2003-12-25 | Closing gun stopping machine type relief valve decompressing by gap used in high pressure washer pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320122825 CN2694014Y (en) | 2003-12-25 | 2003-12-25 | Closing gun stopping machine type relief valve decompressing by gap used in high pressure washer pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2694014Y true CN2694014Y (en) | 2005-04-20 |
Family
ID=34762615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320122825 Expired - Lifetime CN2694014Y (en) | 2003-12-25 | 2003-12-25 | Closing gun stopping machine type relief valve decompressing by gap used in high pressure washer pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2694014Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101641165B (en) * | 2007-04-11 | 2012-11-07 | 阿尔弗雷德·凯驰两合公司 | High-pressure cleaning device |
| US8439653B2 (en) | 2009-10-01 | 2013-05-14 | Alfred Kaercher Gmbh & Co. Kg | Pump for a high-pressure cleaning apparatus |
| US8568109B2 (en) | 2009-10-01 | 2013-10-29 | Alfred Kaercher Gmbh & Co. Kg | Pump for a high-pressure cleaning device |
| US8684699B2 (en) | 2009-10-01 | 2014-04-01 | Alfred Kaercher Gmbh & Co. Kg | Pump for a high-pressure cleaning appliance |
| CN103867759A (en) * | 2014-02-10 | 2014-06-18 | 龙工（上海）精工液压有限公司 | One-way overflow valve capable of preventing overhigh pressure of plunger pump case |
| 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 |
| CN108180177A (en) * | 2017-12-26 | 2018-06-19 | 邵立坤 | It is a kind of for the hydraulic valve of differential circuit and hydraulic differential circuit |
| CN113958737A (en) * | 2021-09-22 | 2022-01-21 | 绿田机械股份有限公司 | Overflow valve with groove-shaped pressure relief structure |
-
2003
- 2003-12-25 CN CN 200320122825 patent/CN2694014Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101641165B (en) * | 2007-04-11 | 2012-11-07 | 阿尔弗雷德·凯驰两合公司 | High-pressure cleaning device |
| US8439653B2 (en) | 2009-10-01 | 2013-05-14 | Alfred Kaercher Gmbh & Co. Kg | Pump for a high-pressure cleaning apparatus |
| US8568109B2 (en) | 2009-10-01 | 2013-10-29 | Alfred Kaercher Gmbh & Co. Kg | Pump for a high-pressure cleaning device |
| US8684699B2 (en) | 2009-10-01 | 2014-04-01 | Alfred Kaercher Gmbh & Co. Kg | Pump for a high-pressure cleaning appliance |
| CN103867759A (en) * | 2014-02-10 | 2014-06-18 | 龙工（上海）精工液压有限公司 | One-way overflow valve capable of preventing overhigh pressure of plunger pump case |
| 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 |
| CN108180177A (en) * | 2017-12-26 | 2018-06-19 | 邵立坤 | It is a kind of for the hydraulic valve of differential circuit and hydraulic differential circuit |
| CN113958737A (en) * | 2021-09-22 | 2022-01-21 | 绿田机械股份有限公司 | Overflow valve with groove-shaped pressure relief structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131225 Granted publication date: 20050420 |