CN104895759A - Two-level pressure device for high-pressure air pump - Google Patents
Two-level pressure device for high-pressure air pump Download PDFInfo
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- CN104895759A CN104895759A CN201510269086.2A CN201510269086A CN104895759A CN 104895759 A CN104895759 A CN 104895759A CN 201510269086 A CN201510269086 A CN 201510269086A CN 104895759 A CN104895759 A CN 104895759A
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- piston
- level
- pressure
- outer tube
- level piston
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Abstract
The invention discloses a two-level pressure device for a high-pressure air pump. The two-level pressure device comprises an outer pipe, a high-pressure rod and a two-level piston sealed between the outer pipe and the high-pressure rod. The lower end of the two-level piston is fixedly provided with a high-pressure pipe in a threaded mode. The two-level pressure device is characterized in that the upper end of the two-level piston is provided with a detaching structure for detaching the two-level piston from the high-pressure pipe by rotating the piston from the interior of the outer pipe. Compared with the prior art, according to the two-level pressure device, the detaching structure of the two-level piston is made to move to the upper end of the two-level piston from the lower end of the two-level piston, so that the two-level piston is screwed off from a thread of the high-pressure pipe through the detaching structure directly under the action of a wrench from the upper end of the outer pipe conveniently, and assembly and disassembly of the two-level piston is achieved conveniently and fast.
Description
Technical field:
The present invention relates to a kind of high-pressure pump, specifically for the two-stage pressurizing device of this high-pressure pump.
Background technique:
The existing two-stage pressurizing device for high-pressure pump, as shown in Figure 2, generally comprise outer tube, high pressure stem, second piston, wherein second piston seals within the outer tube by seal ring, and high-voltage tube is fixed on the lower end of second piston by screw thread.Second piston, when mounting and dismounting, all needs first outer tube to be dismantled, is then just dismantled from high-voltage tube by second piston by spanner, makes the installation and removal of second piston complicated, time and effort consuming.
Summary of the invention:
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, and provides a kind of and can be easy for installation and removal the two-stage pressurizing device for high-pressure pump of second piston without the need to dismantling outer tube.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of two-stage pressurizing device for high-pressure pump, the second piston comprising outer tube, high pressure stem and be sealed between outer tube and high pressure stem, in described second piston lower end, screw thread is fixed with high-voltage tube, it is characterized in that: described second piston upper end is provided with the detaching structure rotating in described outer tube and dismantled from described high-voltage tube by described second piston.
Described detaching structure is groove structure or the protruding structure with at least one axial locating surface.
Described groove structure is inner polygon groove; Described protruding structure is outer polygonal post.
Compared with prior art, the detaching structure of second piston is moved the upper end of second piston by the present invention from the lower end of second piston, thus the convenient upper end from outer tube directly to be acted on detaching structure by spanner thus is turned on by the screw thread of second piston from high-voltage tube, conveniently achieves the installation and removal of second piston.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of prior art.
In figure: 1, outer tube, 2, second piston, 3, high-voltage tube, 4, high pressure stem, 5, spanner groove.
Embodiment
Below in conjunction with accompanying drawing, elaborate to the present invention: as shown in Figure 1, the present invention is used for the two-stage pressurizing device of high-pressure pump, comprises outer tube 1, second piston 2, high-voltage tube 3 and high pressure stem 4.Second piston 2 is sealed by exterior seal ring and outer tube 1, and second piston 2 is sealed by inner seal ring and high pressure stem 4, and high-voltage tube 3 is fixed on the lower end of second piston 2 by screw thread.Second piston upper end is provided with detaching structure, and in the present embodiment, detaching structure is spanner groove 5, and certainly, detaching structure also can adopt conventional groove structure or protruding structure, as the polygonal post of interior hex slot or outer-hexagonal.
Claims (3)
1. the two-stage pressurizing device for high-pressure pump, the second piston comprising outer tube, high pressure stem and be sealed between outer tube and high pressure stem, in described second piston lower end, screw thread is fixed with high-voltage tube, it is characterized in that: described second piston upper end is provided with the detaching structure rotating in described outer tube and dismantled from described high-voltage tube by described second piston.
2. the two-stage pressurizing device for high-pressure pump according to claim 1, is characterized in that: described detaching structure is groove structure or the protruding structure with at least one axial locating surface.
3. the two-stage pressurizing device for high-pressure pump according to claim 2, is characterized in that: described groove structure is inner polygon groove; Described protruding structure is outer polygonal post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269086.2A CN104895759A (en) | 2015-05-25 | 2015-05-25 | Two-level pressure device for high-pressure air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269086.2A CN104895759A (en) | 2015-05-25 | 2015-05-25 | Two-level pressure device for high-pressure air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104895759A true CN104895759A (en) | 2015-09-09 |
Family
ID=54028647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510269086.2A Pending CN104895759A (en) | 2015-05-25 | 2015-05-25 | Two-level pressure device for high-pressure air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104895759A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6382940B1 (en) * | 2000-07-18 | 2002-05-07 | George H. Blume | High pressure plunger pump housing and packing |
| CN201588775U (en) * | 2009-11-04 | 2010-09-22 | 宝鸡航天动力泵业有限公司 | Plunger slurry pump with quick-replaceable plunger piston structure |
| EP2728190A1 (en) * | 2012-11-02 | 2014-05-07 | Interpump Engineering S.r.l. | A hydraulic piston pump |
| CN204108944U (en) * | 2014-09-30 | 2015-01-21 | 郑红艳 | Plungers pump plunger dismantling device |
| CN204692023U (en) * | 2015-05-25 | 2015-10-07 | 南通广兴气动设备有限公司 | For the two-stage pressurizing device of high-pressure pump |
-
2015
- 2015-05-25 CN CN201510269086.2A patent/CN104895759A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6382940B1 (en) * | 2000-07-18 | 2002-05-07 | George H. Blume | High pressure plunger pump housing and packing |
| CN201588775U (en) * | 2009-11-04 | 2010-09-22 | 宝鸡航天动力泵业有限公司 | Plunger slurry pump with quick-replaceable plunger piston structure |
| EP2728190A1 (en) * | 2012-11-02 | 2014-05-07 | Interpump Engineering S.r.l. | A hydraulic piston pump |
| CN204108944U (en) * | 2014-09-30 | 2015-01-21 | 郑红艳 | Plungers pump plunger dismantling device |
| CN204692023U (en) * | 2015-05-25 | 2015-10-07 | 南通广兴气动设备有限公司 | For the two-stage pressurizing device of high-pressure pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150909 |
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| WD01 | Invention patent application deemed withdrawn after publication |