CN204828109U - Be applied to mechanical open -type check valve on second grade telescope in sequence hydro -cylinder - Google Patents
Be applied to mechanical open -type check valve on second grade telescope in sequence hydro -cylinder Download PDFInfo
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- CN204828109U CN204828109U CN201520547113.3U CN201520547113U CN204828109U CN 204828109 U CN204828109 U CN 204828109U CN 201520547113 U CN201520547113 U CN 201520547113U CN 204828109 U CN204828109 U CN 204828109U
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- valve
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Abstract
The utility model discloses a be applied to mechanical open -type check valve on second grade telescope in sequence hydro -cylinder, including installing the valve no. 1 and valve no. 2 in the hydro -cylinder, valve no. 1 including the first spring of cover on first case, first case switches on pole one end with first machinery and is connected, first case is installed on the disk seat, and first spring mounting is in the spring holder, and first machinery switches on the pole position in the oil duct, valve no. 2 including cover in the second spring of second case, the second case switches on the pole through the connector with second machinery and is connected, the second case is installed on the disk seat, second machinery switches on the pole and passes the spring holder, the cover had reset spring on second machinery switched on the pole, and reset spring is located the spring holder. The utility model discloses simple structure, with low costs, range of application guangZhou, machinery external force is opened, does not receive the temperature, fluid type, influences such as pressure, sealing performance is good, and the structure is reliable.
Description
Technical field
The utility model relates to a kind of hydraulically-controlled one-way valve, specifically a kind of machinery-open type one-way valve be applied on secondary sequential telescopic oil cylinder.
Background technique
One-way valve, also known as safety check or check valve, is the one in position control valve, is divided into common one-way valve and Pilot operated check valve in Hydraulic Power Transmission System.The working principle of common one-way valve is that fluid flows to from filler opening, flows out from oil outlet, and fluid can not adverse current; Pilot operated check valve then can rely on control hydrodynamic pressure can make the anti-phase circulation of one-way valve, and namely when controlling mouth access failure pressure oil, Pilot operated check valve works as common one-way valve.When controlling mouth and having pressure to input, pressure oil backs down one-way valve, and hydraulic fluid port is connected, fluid reverse flow.
Model utility content
The purpose of this utility model is to provide a kind of machinery-open type one-way valve be applied on secondary sequential telescopic oil cylinder.
The purpose of this utility model can be achieved through the following technical solutions:
Be applied to the machinery-open type one-way valve on secondary sequential telescopic oil cylinder, comprise and be installed on in-oil cylinder valve one and valve two, described valve one comprises the first spring be placed on the first spool; First spool is connected with first mechanical conduction rod one end; First spool is arranged on valve seat, and the first spring fitting is in spring seat, and the first mechanical conduction rod is arranged in oil duct;
Described valve two comprises the second spring being placed on the second spool; Second spool is connected with the second mechanical conduction rod by connector; Second spool is arranged on valve seat; Second mechanical conduction rod is through spring seat; In second mechanical conduction rod, cover has Returnning spring, and Returnning spring is positioned at spring seat.
The second described spring is installed on the second spool by pad and hole back-up ring.
The beneficial effects of the utility model: the utility model structure is simple, cost is low, applied range; Mechanical external force is opened, not by temperature, and fluid type, the impacts such as pressure; Good seal performance, structure is reliable.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is secondary sequential telescopic cylinder structure cross-sectional schematic;
Fig. 2 is the utility model valve one structure for amplifying schematic diagram;
Fig. 3 is the utility model valve two structure for amplifying schematic diagram.
Embodiment
As Fig. 1, be applied to the machinery-open type one-way valve on secondary sequential telescopic oil cylinder, comprise valve 1 and valve 29, these two kinds of one-way valves are non-integral one-way valve, namely the composition component of valve are not be mounted to a valve assembly, are then assembled to sequential telescopic two-level oil cylinder.But each component of valve are in the assembling process of oil cylinder, are installed on specific position.In the using process of oil cylinder, each component of valve 1 and valve 29 interact, and then reach using effect.
As Fig. 2, first valve 1 mainly comprises the mechanical conduction rod 4 of the first spring 1, first spool 2, first.In the process of installing, the first spool 2 of valve 1 is arranged on valve seat 3, and on the first spool 2, cover has the first spring 1, first spring 1 to be arranged in spring seat 6, and the first mechanical conduction rod 4 is arranged in oil duct 7.When first stage piston bar does not stretch out, when namely valve seat 3 contacts with cylinder bottom 5, the first mechanical conduction rod 4 backs down the first spool 2, and valve port is opened.When first stage piston bar stretches out, the first mechanical conduction rod 4 leaves cylinder bottom 5 along with valve seat 3, and the first spool 2 is close port under the first spring 1 acts on.
As Fig. 3, the second spool 12 of valve 29 is also mounted on valve seat 3, and the second spring 11 is placed on the second spool 12, is installed in valve seat 3 with pad 13 and hole back-up ring 14.Second spool 12 is connected with the second mechanical conduction rod 16 by connector 15, and the second mechanical conduction rod 16 has Returnning spring 10 through cover in the mechanical conduction rod 16 of spring seat 6, second, and Returnning spring 10 is positioned at spring seat 6.After second piston rod stretches out, piston encounters end cap, pulls the second mechanical conduction rod 16, drives the second spool 12, thus open valve port.When after second piston rod retraction, the second spool 12 drives by Returnning spring 10, and automatically reset, the second spool 12 withstands valve seat, and valve port is closed.
The utility model one-way valve is mainly used on secondary sequential telescopic oil cylinder, be used for the circulating direction of hydraulic control oil, thus reach the function of 2-level hydraulic oil cylinder sequential telescopic, there is the advantages such as structure is simple, good airproof performance, sensitivity are high, good in anti-interference performance, machinery unlatching.Particular content is as follows:
One, the utility model machinery-open type one-way valve has the feature of good airproof performance.This machinery-open type one-way valve be cone valve type sealing.Cone valve type sealing is relative to the sealing of traditional steel ball type, and sealability is better.Steel ball type sealed steel ball is without targeting part, once after squeezing out valve line, valve line is shifted, and forms finedraw, easily produce vibrations at spool and valve seat, increases leakage rate during oppositely cut-off.Can not there is relative displacement in the valve line of poppet spool valve and valve seat, it and the running-in of valve seat Line of contact, and sealing is become better and better.
Two, the utility model machinery-open type hydraulically-controlled one-way valve has the advantages that machinery is opened.This one-way valve need not consider forward cracking pressure.In secondary sequential telescopic oil cylinder, machinery-open type hydraulically-controlled one-way valve is in normally closed state, and opening of hydrovalve spool is not the promotion of leaning on hydraulic oil, but leans on the conducting of mechanical external force.Therefore, this machinery-open type hydraulically-controlled one-way valve is not subject to the temperature of fluid, viscosity, the impacts such as the kind of fluid.In addition, the flow control of machinery-open type one-way valve is simple.Only needing the distance by controlling conduction rod conducting spool, carrying out the openings of sizes of control valve, thus coordinate the use of the hydraulic system of different flow.
Three, the manufacture of the utility model machinery-open type one-way valve is simple.The minimum cracking pressure of common one-way valve is determined by the frictional force between the elastic force of one-way valve contained spring and component.So common one-way valve is in manufacture production process, the sensitivity requirements for spring is high, and the process of the test of one-way valve is loaded down with trivial details.This machinery-open type one-way valve, owing to being utilize mechanical external force to open, therefore need not consider the different situation of cracking pressure that spring different rigidity causes.Only need to ensure that the spring in this one-way valve can make valve core reset.Therefore spring select simple, manufacture process is simple, and using scope is wide.
In sum, the utility model machinery-open type one-way valve has following features: structure is simple, cost is low, applied range; Mechanical external force is opened, not by temperature, and fluid type, the impacts such as pressure; Good seal performance, structure is reliable.
Above content is only to the utility model structure example and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the structure of model utility or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (2)
1. be applied to the machinery-open type one-way valve on secondary sequential telescopic oil cylinder, comprise and be installed on in-oil cylinder valve one (8) and valve two (9), it is characterized in that:
Described valve one (8) comprises the first spring (1) be placed on the first spool (2); First spool (2) is connected with first mechanical conduction rod (4) one end; First spool (2) is arranged on valve seat (3), and the first spring (1) is arranged in spring seat (6), and the first mechanical conduction rod (4) is arranged in oil duct (7);
Described valve two (9) comprises the second spring (11) being placed on the second spool (12); Second spool (12) is connected with the second mechanical conduction rod (16) by connector (15); Second spool (12) is arranged on valve seat (3); Second mechanical conduction rod (16) is through spring seat (6); The upper cover of second mechanical conduction rod (16) has Returnning spring (10), and Returnning spring (10) is positioned at spring seat (6).
2. a kind of machinery-open type one-way valve be applied on secondary sequential telescopic oil cylinder according to claim 1, is characterized in that: described the second spring (11) is installed on the second spool (12) by pad (13) and hole back-up ring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520547113.3U CN204828109U (en) | 2015-07-23 | 2015-07-23 | Be applied to mechanical open -type check valve on second grade telescope in sequence hydro -cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520547113.3U CN204828109U (en) | 2015-07-23 | 2015-07-23 | Be applied to mechanical open -type check valve on second grade telescope in sequence hydro -cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828109U true CN204828109U (en) | 2015-12-02 |
Family
ID=54685716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520547113.3U Expired - Fee Related CN204828109U (en) | 2015-07-23 | 2015-07-23 | Be applied to mechanical open -type check valve on second grade telescope in sequence hydro -cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065355A (en) * | 2015-07-23 | 2015-11-18 | 蚌埠液力机械有限公司 | Mechanical-opening type one-way valve applied to double-stage sequentially-telescopic oil cylinder |
-
2015
- 2015-07-23 CN CN201520547113.3U patent/CN204828109U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065355A (en) * | 2015-07-23 | 2015-11-18 | 蚌埠液力机械有限公司 | Mechanical-opening type one-way valve applied to double-stage sequentially-telescopic oil cylinder |
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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: 20151202 Termination date: 20170723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |