CN204312445U - A kind of runtime buffer formula hydraulic jack - Google Patents
A kind of runtime buffer formula hydraulic jack Download PDFInfo
- Publication number
- CN204312445U CN204312445U CN201420533773.1U CN201420533773U CN204312445U CN 204312445 U CN204312445 U CN 204312445U CN 201420533773 U CN201420533773 U CN 201420533773U CN 204312445 U CN204312445 U CN 204312445U
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- China
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- cylinder body
- refluxing opening
- way valve
- hydraulic jack
- cylinder
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Abstract
A kind of runtime buffer formula hydraulic jack, comprise cylinder body, piston, pipeline, one-way valve, described piston is installed in cylinder body, and described cylinder body two ends are provided with oil inlet and outlet, described cylinder body is also provided with at least one refluxing opening, and described one-way valve is connected with refluxing opening by pipeline.The utility model has the advantages that: during the position that cylinder movement cushions to needs, hydraulic system is by refluxing opening off-load, and oil cylinder is slowly action under external force only, reaches buffering object, during reversing motion, under the effect of one-way valve, oil cylinder does not affect normal operation by refluxing opening.
Description
Technical field
The utility model relates to technical field of hydraulic equipment, is specifically related to a kind of runtime buffer formula hydraulic jack.
Background technique
Existing cushioning device for oil cylinder mostly is gap buffer, when oil cylinder runs to buffer position, the structure of oil cylinder makes the gap of drainback passage more and more less, oil return is obstructed, the motion speed of oil cylinder declines, to reach the object of buffering, because this type of damping device can not eliminate the active force of oil cylinder, therefore stop applying cylinder force after the movement needs of mechanism runs to a certain position, make mechanism's only autonomous travel under external force, with protection mechanism not by the injury of cylinder force, when the return of mechanism is run and is still relied on cylinder force, existing oil cylinder then cannot realize above-mentioned requirements.
Model utility content
For solving the problems of the technologies described above, the utility model provides a kind of runtime buffer formula hydraulic jack.
Technical solution adopted in the utility model is: a kind of runtime buffer formula hydraulic jack, comprise cylinder body, piston, pipeline, one-way valve, described piston is installed in cylinder body, described cylinder body two ends are provided with oil inlet and outlet, it is characterized in that: described cylinder body is also provided with at least one refluxing opening, described one-way valve is connected with refluxing opening by pipeline.
The beneficial effects of the utility model are: during the position that cylinder movement cushions to needs, hydraulic system is by refluxing opening off-load, and oil cylinder is slowly action under external force only, reaches buffering object, during reversing motion, under the effect of one-way valve, oil cylinder does not affect normal operation by refluxing opening.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Do to disclose further to model utility below in conjunction with Figure of description.
Embodiment
As shown in Figure 1, a kind of runtime buffer formula hydraulic jack, comprise cylinder body 1, piston 2, pipeline 4, one-way valve 3, described piston 2 is installed in cylinder body 1, described cylinder body 1 two ends are provided with oil inlet and outlet, described cylinder body 1 is also provided with a refluxing opening 5, described one-way valve 3 is connected with refluxing opening 5 by pipeline 4.
Claims (1)
1. a runtime buffer formula hydraulic jack, comprise cylinder body, piston, pipeline, one-way valve, described piston is installed in cylinder body, described cylinder body two ends are provided with oil inlet and outlet, it is characterized in that: described cylinder body is also provided with at least one refluxing opening, described one-way valve is connected with refluxing opening by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533773.1U CN204312445U (en) | 2014-09-17 | 2014-09-17 | A kind of runtime buffer formula hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533773.1U CN204312445U (en) | 2014-09-17 | 2014-09-17 | A kind of runtime buffer formula hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312445U true CN204312445U (en) | 2015-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420533773.1U Active CN204312445U (en) | 2014-09-17 | 2014-09-17 | A kind of runtime buffer formula hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235115A (en) * | 2014-09-17 | 2014-12-24 | 青特集团有限公司 | Running buffer type hydraulic oil cylinder |
| CN112482920A (en) * | 2020-12-04 | 2021-03-12 | 王芬芬 | Regulation and control device and door closer adopting same |
-
2014
- 2014-09-17 CN CN201420533773.1U patent/CN204312445U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235115A (en) * | 2014-09-17 | 2014-12-24 | 青特集团有限公司 | Running buffer type hydraulic oil cylinder |
| CN112482920A (en) * | 2020-12-04 | 2021-03-12 | 王芬芬 | Regulation and control device and door closer adopting same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |