CN2231246Y - Automatic kichback return mechanism for hydraulic jack - Google Patents
Automatic kichback return mechanism for hydraulic jack Download PDFInfo
- Publication number
- CN2231246Y CN2231246Y CN 95225543 CN95225543U CN2231246Y CN 2231246 Y CN2231246 Y CN 2231246Y CN 95225543 CN95225543 CN 95225543 CN 95225543 U CN95225543 U CN 95225543U CN 2231246 Y CN2231246 Y CN 2231246Y
- Authority
- CN
- China
- Prior art keywords
- pressure oil
- hydraulic jack
- oil cavity
- oil
- accumulator
- 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 - Fee Related
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to an automatic return mechanism for a hydraulic jack, which is composed of a pump station, an accumulator, an oil delivery pipe, and an oil cylinder, wherein, the accumulator is composed of an aerated valve 13 which is fixed on the top of the casing of the pressure oil cavity 23, an aerated rubber bag 14 which is assembled in the casing of the pressure oil cavity, and a mushroom valve 21 which is arranged on the passage which is used for communicating the pressure oil cavity 23 and a tee 22. The automatic return of the hydraulic jack is realized by the accumulator, the purposes of relieving the labor intensity of airport staff members, enhancing work efficiency, realizing fast maintenance in the airport are achieved, and large amount of exchange is saved for the country simultaneously.
Description
The utility model belongs to the automated backhaul mechanism of the hydraulic jack item in the what elevator machinery field.
Before the present utility model, the employed jack of China's civil airport be that foreign country produces or domestic production do not possess the automated backhaul function, the backhaul of jack can only lean on the people foot-operated, hand is removed etc., and external force realizes.
The prior art the most approaching with the utility model is the backhaul mechanism of the aircraft wheel shaft jack of Jilin Province Gongzhuling City hydraulic tools factory production.As shown in Figure 1: form by pumping plant 1, spool 2, pressure oil pipe 3, backhaul oil pipe 4, reciprocating oil cylinder 5, fixed oil cylinder 6, the oil pipe 7 that hoists, valve body 8, oil return pipe 9.
The backhaul mechanism of this jack, the maintainer who makes the airport will pay bigger labour intensity in maintenance work, waste a lot of times, inefficiency.
In order to overcome this shortcoming, the purpose of this utility model is to alleviate airport maintainer's labour intensity, increases work efficiency, with suitable airport fast pace requirements of one's work.
Detailed content of the present utility model is as shown in Figure 2: be made up of pumping plant 10, shutoff valve 11, low pressure transport pipe 12, charge valve 13, aerated capsule 14, oil pressure indicator 15, backhaul oil pipe 16, reciprocating oil cylinder 17, fixed oil cylinder 18, oil drain tube 19, jacking oil pipe 20, poppet valve 21, threeway 22, pressure oil cavity 23.Wherein, charge valve 13, aerated capsule 14, poppet valve 21, threeway 22, pressure oil cavity 23 have constituted energy storage.
In accumulator apparatus, top, aerated capsule 14 that charge valve 13 is fixed on the housing of pressure oil cavity 23 are assemblied in the housing of pressure oil cavity 23, charge valve 13 communicates with the port of aerated capsule 14, and with pressure oil cavity 23 and housing seal thereof, poppet valve 21 is assemblied on the passage of pressure oil cavity 23 and threeway 22.
Principle working process of the present utility model is: after the aerated capsule 14 of energy storage charges into the nitrogen of suitable pressure by charge valve 13, pumping plant 10 is started working, open shutoff valve 11, pressure oil enters threeway 22 by shutoff valve 11 and low pressure transport pipe 12, enter pressure oil cavity 23 then respectively and enter the epicoele (backhaul oil pocket) of reciprocating oil cylinder 17 by backhaul oil pipe 16, pressure oil also enters the cavity of resorption of reciprocating oil cylinder 17 and fixed oil cylinder 18 compositions by another jacking oil pipe 20, because the pressure oil active area of reciprocating oil cylinder cavity of resorption is big, reciprocating oil cylinder constantly rises to the extreme higher position, constantly work owing to pumping plant 10 again, when the index of oil pressure indicator 15 surpasses the nitrogen pressure of aerated capsule 14, close shutoff valve 11, open the oil cock on the oil drain tube 19, reciprocating oil cylinder 17 is got back to extreme lower position automatically, thereby has realized the automated backhaul of hydraulic jack.
Good effect of the present utility model: alleviated airport ground maintainer's labour intensity greatly, saved the time, satisfied the airport and keeped in repair allegro needs, also saved a large amount of foreign exchanges for country.
Description of drawings: Fig. 1 is the theory structure scheme drawing of prior art, and Fig. 2 is a structural representation of the present utility model.
Most preferred embodiment of the present utility model: all there is the right alignment requirement in the Wai Yuan of reciprocating oil cylinder 17 and Wai Yuan, Nei Yuan and interior garden, and right alignment is 3 roads; Do not have strict right alignment requirement between Wai Yuan and the interior garden, Wai Yuan and interior garden all require chromium plating, and chromium coating thickness is 7 roads.
Formed high-voltage oil cavity (cavity of resorption) adopts two road seal rings between anchor shaft cylinder 18 and the reciprocating oil cylinder 17, low pressure oil pocket (epicoele) is used seal ring one, and the volume of formed low pressure oil pocket (epicoele) is equivalent to 1/5 of energy storage volume between fixed oil cylinder 18 and the reciprocating oil cylinder 17.
Claims (1)
1, the automated backhaul mechanism of hydraulic jack, form by pumping plant, transport pipe, reciprocating oil cylinder, fixed oil cylinder, it is characterized in that in the accumulator apparatus, charge valve 13 is fixed on the top of pressure oil cavity 23 housings, aerated capsule 14 is assemblied in pressure oil cavity 23 enclosure interior, the port of aerated capsule 14 communicates with the port of charge valve 13, and with pressure oil cavity 23 and housing seal thereof, poppet valve 21 is assemblied on the passage of pressure oil cavity 23 and threeway 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95225543 CN2231246Y (en) | 1995-10-19 | 1995-10-19 | Automatic kichback return mechanism for hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95225543 CN2231246Y (en) | 1995-10-19 | 1995-10-19 | Automatic kichback return mechanism for hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2231246Y true CN2231246Y (en) | 1996-07-17 |
Family
ID=33871982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95225543 Expired - Fee Related CN2231246Y (en) | 1995-10-19 | 1995-10-19 | Automatic kichback return mechanism for hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2231246Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596856A (en) * | 2015-01-16 | 2015-05-06 | 重庆大学 | Uniaxial tension compression system |
| CN104614247A (en) * | 2015-01-16 | 2015-05-13 | 重庆大学 | Visualized triaxial test system |
-
1995
- 1995-10-19 CN CN 95225543 patent/CN2231246Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596856A (en) * | 2015-01-16 | 2015-05-06 | 重庆大学 | Uniaxial tension compression system |
| CN104614247A (en) * | 2015-01-16 | 2015-05-13 | 重庆大学 | Visualized triaxial test system |
| CN104596856B (en) * | 2015-01-16 | 2017-01-25 | 重庆大学 | Uniaxial tension compression system |
| CN104614247B (en) * | 2015-01-16 | 2017-02-01 | 重庆大学 | Visualized triaxial test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |