CN205172924U - Pressure compensation high pressure water pump - Google Patents
Pressure compensation high pressure water pump Download PDFInfo
- Publication number
- CN205172924U CN205172924U CN201520949169.1U CN201520949169U CN205172924U CN 205172924 U CN205172924 U CN 205172924U CN 201520949169 U CN201520949169 U CN 201520949169U CN 205172924 U CN205172924 U CN 205172924U
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- pressure
- valve body
- pressure compensation
- piston
- water pump
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Abstract
The utility model provides a pressure compensation high pressure water pump, includes the pump body, and the hinge joint of the pump body has the valve body, is equipped with entry and export on the valve body, and entry and exit are equipped with the check valve, are equipped with the seal receptacle between valve body and the piston, and piston and valve body contact department are equipped with O type sealing washer, form sealed district between O type sealing washer, piston, seal receptacle and the valve body, seal and are equipped with the pressure compensation passageway between district and the export, are equipped with throttling element in the pressure compensation passageway. The utility model discloses the pressure compensation passageway is adopted to the device, and sealed district couples together with high pressure export and low pressure, and the throttle screw is installed to the centre, through the pressure differential at the orifice automatically regulated pressure compensation passageway both ends in the throttle screw, improves the pressure of sealing member low tension side, reduces the pressure differential at sealing member both ends, improves the life of sealing member, and the throttle is in allen key installs the pressure compensation passageway for the screw, easy to assemble and dismantlement.
Description
Technical field
The utility model relates to high casting die field, specifically a kind of pressure compensation high-pressure water pump.
Background technique
The seal ring two ends of conventional high-pressure water pump piston are respectively zone of high pressure and low pressure area, because high-pressure water pump is that bent axle drives reciprocating motion of the pistons, high pressure is produced, so pressure pulsation is large, in use because compression shock easily makes seal ring premature failure by one-way valve flow.
Summary of the invention
Problem to be solved in the utility model is the deficiency overcoming above-mentioned prior art, provides the pressure compensation high-pressure water pump that a kind of structure is simple, respond well.
The utility model realizes with following technological scheme: a kind of pressure compensation high-pressure water pump, comprise the pump housing, the piston of the described pump housing is connected with valve body, described valve body is provided with entrance and exit, described entrance and exit place is provided with one-way valve, described valve body is provided with the screw plug for leakproof one-way valve, sealing seat is provided with between described valve body and piston, described sealing seat is provided with some seal rings sealed to piston, the contacting point of the front end of described piston and valve body is provided with O RunddichtringO, described O RunddichtringO, piston, seal area is formed between sealing seat and valve body, described valve body is provided with pressure compensation channel between the region at the one-way valve place of seal area and outlet, throttle element is provided with in described pressure compensation channel.
It is further: described throttle element is throttling screw.
The utility model tool has the following advantages: the utility model device adopts pressure compensation channel, high-pressure outlet and low pressure seal district are coupled together, centre is provided with throttling screw, by the pressure difference at the throttle orifice automatic pressure regulation compensation channel two ends in throttling screw, improve the pressure of Sealing low voltage side, reduce the pressure difference at Sealing two ends, improve the working life of Sealing, throttling screw inner hexagon spanner is installed in pressure compensation channel, is easy for installation and removal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of valve body in Fig. 1;
In figure: 1, the pump housing, 2, sealing seat, 3, valve body, 4, throttling screw, 5, pressure compensation channel, 6, screw plug, 7, one-way valve, 8, piston, 9, O RunddichtringO, 10, entrance, 11, seal area, 12, outlet.
Embodiment
A kind of pressure compensation high-pressure water pump as shown in Figure 1 to Figure 2, comprise the pump housing 1, the piston 8 of the described pump housing 1 is connected with valve body 3, described valve body 3 is provided with entrance 10 and outlet 12, described entrance 10 and outlet 12 places are provided with one-way valve 7, described valve body 3 is provided with the screw plug 6 for leakproof one-way valve 7, sealing seat 5 is provided with between described valve body 3 and piston 8, described sealing seat 5 is provided with some seal rings sealed to piston 8, described piston 8 is provided with O RunddichtringO 9 with the contacting point of the front end of valve body 3, described O RunddichtringO 9, piston 8, seal area 11 is formed between sealing seat 2 and valve body 3, on described valve body 3 seal area 11 and outlet 12 one-way valve place region between be provided with pressure compensation channel 5, throttle element is provided with in described pressure compensation channel 5.O RunddichtringO of the present utility model, piston, pressure in the seal area formed between sealing seat and valve body is less, because O RunddichtringO is arranged on the front end near valve body, so an end pressure of O RunddichtringO is less, the other end is in high-pressure area, therefore there is pressure difference in O RunddichtringO two ends, the pressure buffer passage arranged is by the regional connectivity at seal area and one-way valve place, outlet port, throttle element is provided with in the middle of pressure buffer passage, i.e. throttling screw, in seal area, transitional pressure is produced by throttling screw, carry the pressure of O RunddichtringO low voltage side, the throttle orifice of throttling screw reduces the pressure reduction at O RunddichtringO two ends automatically, improve the working life of Sealing, throttling screw can be installed in pressure compensation channel by inner hexagon spanner, and installation and removal are all very convenient, if also can block with screw plug without pressure compensation channel, throttle element also can change throttle valve in addition.
Claims (2)
1. a pressure compensation high-pressure water pump, comprise the pump housing (1), the piston (8) of the described pump housing (1) is connected with valve body (3), it is characterized in that: described valve body (3) is provided with entrance (10) and outlet (12), described entrance (10) and outlet (12) place are provided with one-way valve (7), described valve body (3) is provided with the screw plug (6) for leakproof one-way valve (7), sealing seat (5) is provided with between described valve body (3) and piston (8), described sealing seat (5) is provided with some seal rings sealed to piston (8), described piston (8) is provided with O RunddichtringO (9) with the contacting point of the front end of valve body (3), described O RunddichtringO (9), piston (8), seal area (11) is formed between sealing seat (2) and valve body (3), on described valve body (3) seal area (11) and outlet (12) one-way valve place region between be provided with pressure compensation channel (5), described pressure compensation channel is provided with throttle element in (5).
2. a kind of pressure compensation high-pressure water pump as claimed in claim 1, is characterized in that: described throttle element is throttling screw (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520949169.1U CN205172924U (en) | 2015-11-25 | 2015-11-25 | Pressure compensation high pressure water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520949169.1U CN205172924U (en) | 2015-11-25 | 2015-11-25 | Pressure compensation high pressure water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205172924U true CN205172924U (en) | 2016-04-20 |
Family
ID=55736926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520949169.1U Active CN205172924U (en) | 2015-11-25 | 2015-11-25 | Pressure compensation high pressure water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205172924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351183A (en) * | 2015-11-25 | 2016-02-24 | 徐州科源液压股份有限公司 | Pressure compensation high-pressure water pump |
-
2015
- 2015-11-25 CN CN201520949169.1U patent/CN205172924U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351183A (en) * | 2015-11-25 | 2016-02-24 | 徐州科源液压股份有限公司 | Pressure compensation high-pressure water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |