CN202284576U - Safety circuit of rod cavity of multistage oil cylinder - Google Patents
Safety circuit of rod cavity of multistage oil cylinder Download PDFInfo
- Publication number
- CN202284576U CN202284576U CN2011204025283U CN201120402528U CN202284576U CN 202284576 U CN202284576 U CN 202284576U CN 2011204025283 U CN2011204025283 U CN 2011204025283U CN 201120402528 U CN201120402528 U CN 201120402528U CN 202284576 U CN202284576 U CN 202284576U
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- CN
- China
- Prior art keywords
- oil cylinder
- rod cavity
- multistage
- overflow valve
- safety circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a safety circuit of a rod cavity of a multistage oil cylinder, which comprises the multistage oil cylinder. A rod-free cavity connector and a rod cavity connector of the multistage oil cylinder are simultaneously connected onto a three-position four-way solenoid valve in return circuit connection with a hydraulic pump, a return oil filter and an oil tank. An overflow valve is simultaneously connected with the position of the rod cavity connector of the multistage oil cylinder, and the other end of the overflow valve is connected onto the return oil filter. The safety circuit of the rod cavity of the multistage oil cylinder is simple in structure and convenient to install, and a user only needs to directly add the overflow valve in a return circuit. When a return oil way is blocked, pressure of the rod cavity of the multistage oil cylinder rises; and when set pressure of the overflow valve is achieved, the overflow valve is opened, oil can be directly returned to the oil tank, a protection function is achieved, and potential hazards of cylinder swelling are eliminated.
Description
Technical field
The utility model belongs to hydraulic transmission technology field, is specifically related to a kind of safety circuit of multi-stage oil cylinder rod chamber.
Background technique
In the existing technology loop of multi-stage oil cylinder 1 identical with pot type piston oil cylinder loop (referring to Fig. 1), do not consider the particularity of multi-stage oil cylinder.Oil circuit cause clogging when if multi-stage oil cylinder stretches out, because of rod chamber and rodless cavity surface area differ bigger, rod chamber pressure will rise sharply, the danger of the cylinder that possibly rise.
The model utility content
The purpose of the utility model is to overcome the deficiency of above-mentioned existing technology, provides a kind of simple in structure, is convenient to install, and can improve the safety circuit of the multi-stage oil cylinder rod chamber of Security.
A kind of safety circuit of multi-stage oil cylinder rod chamber; Comprise multi-stage oil cylinder; The rodless cavity interface of said multi-stage oil cylinder and rod chamber interface are connected on the three position four-way electromagnetic valve simultaneously, and said three position four-way electromagnetic valve is the loop with oil hydraulic pump, return filter and fuel tank and is connected; The rod chamber jointing of said multi-stage oil cylinder is connected with relief valve simultaneously, and the said relief valve the other end is connected on the return filter.
The utility model is simple in structure, and is easy for installation, directly in the loop, adds relief valve and gets final product, when oil circuit has obstruction; Multi-stage oil cylinder rod chamber pressure rises, and behind the set pressure that reaches relief valve, relief valve is opened; Oil is oil sump tank directly, plays a protective role, and eliminates the hidden danger of the cylinder that rises.
Description of drawings
Fig. 1 is traditional multi-stage oil cylinder rod chamber loop structure schematic representation.
Fig. 2 is the structural representation of the utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is further specified.Should be understood that following examples only are used to the utility model is described but not the scope that is used to limit the utility model.
Referring to Fig. 2; The safety circuit of a kind of multi-stage oil cylinder rod chamber that the utility model provides; Comprise multi-stage oil cylinder 1; The rodless cavity interface of said multi-stage oil cylinder 1 and rod chamber interface are connected on the three position four-way electromagnetic valve 2 simultaneously, and said three position four-way electromagnetic valve 2 is the loop with oil hydraulic pump 3, return filter 4 and fuel tank 5 and is connected; The rod chamber jointing of said multi-stage oil cylinder 1 is connected with relief valve 6 simultaneously, and said relief valve 6 the other ends are connected on the return filter 4.
When multi-stage oil cylinder 1 regular event, relief valve 6 is not worked, and is equivalent to normally closed.When oil circuit had obstruction, multi-stage oil cylinder 1 rod chamber pressure rose, and behind the set pressure that reaches relief valve 6, relief valve 6 is opened, and oil is oil sump tank 5 directly, played a protective role, and eliminated the hidden danger of the cylinder that rises.
Claims (1)
1. the safety circuit of a multi-stage oil cylinder rod chamber; Comprise multi-stage oil cylinder; The rodless cavity interface and the rod chamber interface of said multi-stage oil cylinder are connected on the three position four-way electromagnetic valve simultaneously; Said three position four-way electromagnetic valve is the loop with oil hydraulic pump, return filter and fuel tank and is connected, and it is characterized in that: the rod chamber jointing of said multi-stage oil cylinder is connected with relief valve simultaneously, and the said relief valve the other end is connected on the return filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204025283U CN202284576U (en) | 2011-10-21 | 2011-10-21 | Safety circuit of rod cavity of multistage oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204025283U CN202284576U (en) | 2011-10-21 | 2011-10-21 | Safety circuit of rod cavity of multistage oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284576U true CN202284576U (en) | 2012-06-27 |
Family
ID=46296099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204025283U Expired - Lifetime CN202284576U (en) | 2011-10-21 | 2011-10-21 | Safety circuit of rod cavity of multistage oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284576U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989684A (en) * | 2015-07-29 | 2015-10-21 | 徐明建 | Bothway multiple-joint oil cylinder protection energy-saving hydraulic system |
| CN107362608A (en) * | 2017-07-10 | 2017-11-21 | 金海重工（舟山）设计研究院有限公司 | Ship derusting vacuum sewage recovery system |
| CN109083893A (en) * | 2018-10-25 | 2018-12-25 | 北京机械设备研究所 | A kind of Multi-stage cylinder luffing movement hydraulic circuit of low impact |
-
2011
- 2011-10-21 CN CN2011204025283U patent/CN202284576U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989684A (en) * | 2015-07-29 | 2015-10-21 | 徐明建 | Bothway multiple-joint oil cylinder protection energy-saving hydraulic system |
| CN107362608A (en) * | 2017-07-10 | 2017-11-21 | 金海重工（舟山）设计研究院有限公司 | Ship derusting vacuum sewage recovery system |
| CN109083893A (en) * | 2018-10-25 | 2018-12-25 | 北京机械设备研究所 | A kind of Multi-stage cylinder luffing movement hydraulic circuit of low impact |
| CN109083893B (en) * | 2018-10-25 | 2020-06-16 | 北京机械设备研究所 | Low-impact multi-stage cylinder amplitude-variable movement hydraulic circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JINLV ENVIRONMENTAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: HEFEI JINLU ENVIRONMENT HYGIENE APPARATUS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 230011 Industrial Development Zone, comprehensive development test zone, Hefei new station, Anhui Patentee after: HEFEI JINGLV SANITARY EQUIPMENT CO., LTD. Address before: 230011 Industrial Development Zone, comprehensive development test zone, Hefei new station, Anhui Patentee before: Hefei Jinglv Sanitary Equipment Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 230011 Industrial Development Zone, comprehensive development test zone, Hefei new station, Anhui Patentee after: Jinlv Environmental Technology Co., Ltd Address before: 230011 Industrial Development Zone, comprehensive development test zone, Hefei new station, Anhui Patentee before: HEFEI JINGLV SANITARY EQUIPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120627 |
|
| CX01 | Expiry of patent term |