CN202579386U - Speed-limiting hydraulic lock - Google Patents
Speed-limiting hydraulic lock Download PDFInfo
- Publication number
- CN202579386U CN202579386U CN 201220185806 CN201220185806U CN202579386U CN 202579386 U CN202579386 U CN 202579386U CN 201220185806 CN201220185806 CN 201220185806 CN 201220185806 U CN201220185806 U CN 201220185806U CN 202579386 U CN202579386 U CN 202579386U
- Authority
- CN
- China
- Prior art keywords
- oil
- hydraulic lock
- valve core
- speed
- filler opening
- 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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Abstract
The utility model discloses a speed-limiting hydraulic lock, which comprises a valve body, two oil inlets A and B formed on the valve body, and two oil outlets A1 and B2, wherein the oil inlet A is connected with the oil outlet A1 through two oil ways and a one-way valve arranged in the two oil ways; the oil inlet B is directly connected with the oil outlet B1; the front ends of the two one-way valves are connected with the oil inlet B through respective connecting oil ways; a movable valve core and a return spring are arranged in the two connecting oil ways; and the speed-limiting hydraulic lock is characterized in that a throttling valve core with a taper is arranged on one one-way valve and the oil way of the oil outlet A1 through an adjusting nut. According to the speed-limiting hydraulic lock, the oil intaking and oil returning speeds of the hydraulic lock can be adjusted, and the speed-limiting hydraulic lock has the advantage of wide application range.
Description
Technical field
The utility model relates to a kind of hydraulic lock.
Background technique
Hydraulic lock is widely used in the various hydraulic systems; Existing hydraulic lock; Comprise valve body, be located at two filler opening A and B, two oil outlet A1 and B1 on the valve body, filler opening A links to each other with oil outlet A1 with one-way valve in being located at two oil circuits through two oil circuits, and filler opening B directly links to each other with oil outlet B1; The connection oil circuit that the front end of two one-way valves also passes through separately links to each other with filler opening B, and in two connection oil circuits, is equipped with moving valve core and Returnning spring; During use, filler opening A feeds hydraulic oil, and pushes two one-way valves open and discharged by oil outlet A1, makes hydraulic element move; Behind the fuel cut-off, two one-way valves reset, and prevent that fluid from refluxing, and the lockable hydraulic element make it keep the work on hand state; When hydraulic element need reset, filler opening B fed hydraulic oil, was discharged by oil outlet B1, promoted two moving valve cores simultaneously and opened two one-way valves, let the hydraulic oil of previous decompression flow back to through oil outlet A1, filler opening A; But the oil-feed of this hydraulic lock and oil return speed all can't be adjusted, and make troubles to use.
The model utility content
The purpose of the utility model is the above-mentioned deficiency that exists to existing technology, and a kind of speed limit hydraulic lock is provided, and it can adjust the oil-feed and the oil return speed of hydraulic lock, has the wide advantage of using scope.
For achieving the above object; The speed limit hydraulic lock of the utility model; Comprise valve body, be located at two filler opening A and B, two oil outlet A1 and B1 on the valve body; Filler opening A links to each other with oil outlet A1 with one-way valve in being located at two oil circuits through two oil circuits, and filler opening B directly links to each other with oil outlet B1, and the front end of the two one-way valves also connection oil circuit through separately links to each other with filler opening B; And connect in the oil circuits two and to be equipped with moving valve core and Returnning spring, it is characterized in that also being provided with the throttling valve core of being with tapering on the oil circuit of an one-way valve and oil outlet A1 therein through the adjustment nut.
The utility model passes through the adjustment throttling valve core, the oil-feed of may command hydraulic lock and oil return speed, and it is wide to enlarge its using scope;
As the further improvement of the utility model, the sectional area that said one-way valve its front end corresponding with throttling valve core connects the moving valve core in the oil circuit is bigger than the sectional area of another moving valve core; The one-way valve that is provided with throttling valve core in the time of can guaranteeing oil return preferentially moves, and improves restriction effect;
In sum, the utility model can be adjusted the oil-feed and the oil return speed of hydraulic lock, has the wide advantage of using scope.
Description of drawings
Fig. 1 is the utility model embodiment's a plan view.
Fig. 2 is the C-C sectional view of Fig. 1.
Fig. 3 is the hydraulic schematic diagram of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
As shown in Figure 1 to Figure 3; This speed limit hydraulic lock comprises valve body 12; Be located at two oil-in A and B on the valve body 12; Two oil-out A1 and B1; Oil-in A is by two oil circuits and be located at the check valve 13 in two oil circuits; 14 link to each other with oil-out A1; Wherein on the oil circuit of check valve 13 and oil-out A1, also be provided with the throttling valve core 15 of band tapering by adjustment nut 16; Oil-in B directly links to each other with oil-out B1; Two check valves 13; The connection oil circuit that 14 front end also passes through separately links to each other with oil-in B; And two connect be equipped with in the oil circuits moving valve core 20 or 17 with back-moving spring 18 or 19, the sectional area of the moving valve core 20 in wherein corresponding with throttling valve core 15 check valve 13 its front ends connection oil circuits is bigger than the sectional area of another moving valve core 17;
When the utility model uses; When the filler opening A of hydraulic lock 8 oil-feed, hydraulic oil is pushed two one- way valves 13,14 open from the rodless cavity that oil outlet A1 gets into oil cylinder, promotes piston rod 2 and stretches out; In this process; Through adjustment nut 16 and the position of regulating throttling valve core 15, the flow of may command hydraulic oil, thereby the speed of control hydraulic element action; A stops oil-feed when filler opening, and two one- way valves 13,14 are closed under the effect of spring, and the fluid of decompression is closed, and hydraulic element are kept the work on hand state; When hydraulic element need reset; By filler opening B oil-feed; Get into hydraulic element by oil outlet B1 again, high pressure oil promotes moving valve core 20 earlier and opens one-way valve 13 simultaneously, promotes moving valve core 17 again and opens one-way valve 14; Decompression oil in the hydraulic element can flow out through oil outlet A1, two one- way valves 13,14 and filler opening A, accomplishes the recovery of hydraulic element.The utility model can be adjusted the oil-feed and the oil return speed of hydraulic lock, has the wide advantage of using scope.
Claims (2)
1. speed limit hydraulic lock; Comprise valve body, be located at two filler opening A and B, two oil outlet A1 and B1 on the valve body; Filler opening A links to each other with oil outlet A1 with one-way valve in being located at two oil circuits through two oil circuits; Filler opening B directly links to each other with oil outlet B1; The front end of the two one-way valves also connection oil circuit through separately links to each other with filler opening B, and connects in the oil circuits two and to be equipped with moving valve core and Returnning spring, it is characterized in that also being provided with the throttling valve core of being with tapering through adjusting nut on the oil circuit of an one-way valve and oil outlet A1 therein.
2. speed limit hydraulic lock as claimed in claim 1, it is bigger than the sectional area of another moving valve core to it is characterized in that its front end of the said one-way valve corresponding with throttling valve core connects the sectional area of the moving valve core in oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220185806 CN202579386U (en) | 2012-04-27 | 2012-04-27 | Speed-limiting hydraulic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220185806 CN202579386U (en) | 2012-04-27 | 2012-04-27 | Speed-limiting hydraulic lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579386U true CN202579386U (en) | 2012-12-05 |
Family
ID=47248802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220185806 Expired - Fee Related CN202579386U (en) | 2012-04-27 | 2012-04-27 | Speed-limiting hydraulic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579386U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438536A (en) * | 2016-08-30 | 2017-02-22 | 北京精密机电控制设备研究所 | Expandable and high-reliability hydraulic lock |
| CN106640803A (en) * | 2016-11-18 | 2017-05-10 | 浙江华益精密机械股份有限公司 | Hydraulic lock with flushing function |
| CN110499987A (en) * | 2019-09-24 | 2019-11-26 | 河北斯弗液压机械技术有限公司 | A kind of hydraulic well lid anti-pinch people lock |
-
2012
- 2012-04-27 CN CN 201220185806 patent/CN202579386U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438536A (en) * | 2016-08-30 | 2017-02-22 | 北京精密机电控制设备研究所 | Expandable and high-reliability hydraulic lock |
| CN106640803A (en) * | 2016-11-18 | 2017-05-10 | 浙江华益精密机械股份有限公司 | Hydraulic lock with flushing function |
| CN110499987A (en) * | 2019-09-24 | 2019-11-26 | 河北斯弗液压机械技术有限公司 | A kind of hydraulic well lid anti-pinch people lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20200427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |