CN204692023U - For the two-stage pressurizing device of high-pressure pump - Google Patents
For the two-stage pressurizing device of high-pressure pump Download PDFInfo
- Publication number
- CN204692023U CN204692023U CN201520339343.0U CN201520339343U CN204692023U CN 204692023 U CN204692023 U CN 204692023U CN 201520339343 U CN201520339343 U CN 201520339343U CN 204692023 U CN204692023 U CN 204692023U
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- piston
- outer tube
- pressure pump
- pressurizing device
- stage pressurizing
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Abstract
The utility model discloses 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.Compared with prior art, the detaching structure of second piston is moved the upper end of second piston by the utility model 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.
Description
Technical field:
The utility model 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 in the utility model 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 adopted in the utility model 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 utility model 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 utility model.
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 utility model: as shown in Figure 1, the utility model 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 |
|---|---|---|---|
| CN201520339343.0U CN204692023U (en) | 2015-05-25 | 2015-05-25 | For the two-stage pressurizing device of high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520339343.0U CN204692023U (en) | 2015-05-25 | 2015-05-25 | For the two-stage pressurizing device of high-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692023U true CN204692023U (en) | 2015-10-07 |
Family
ID=54232324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520339343.0U Active CN204692023U (en) | 2015-05-25 | 2015-05-25 | For the two-stage pressurizing device of high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204692023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895759A (en) * | 2015-05-25 | 2015-09-09 | 南通广兴气动设备有限公司 | Two-level pressure device for high-pressure air pump |
-
2015
- 2015-05-25 CN CN201520339343.0U patent/CN204692023U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895759A (en) * | 2015-05-25 | 2015-09-09 | 南通广兴气动设备有限公司 | Two-level pressure device for high-pressure air pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |