CN203257782U - One-way reducing valve - Google Patents
One-way reducing valve Download PDFInfo
- Publication number
- CN203257782U CN203257782U CN 201320271167 CN201320271167U CN203257782U CN 203257782 U CN203257782 U CN 203257782U CN 201320271167 CN201320271167 CN 201320271167 CN 201320271167 U CN201320271167 U CN 201320271167U CN 203257782 U CN203257782 U CN 203257782U
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- pressure
- valve
- way
- reducing valve
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Abstract
The utility model provides a one-way reducing valve which comprises a body, a hexagonal sleeve and a rotary knob set sequentially connected, wherein a sliding shaft is arranged inside the body, a steel ball is arranged at the top end of the sliding shaft, the top end of the sliding shaft is connected with a spring base which is provided with a spring, the steel ball, the spring base and the spring are installed inside the hexagonal sleeve, and the other end of the spring base is connected with an adjusting rod which is internally installed. The body is further internally provided with a needle valve which has the bypass one-way effect. The one-way valve provided by the utility model is the one-way valve provided with a bypass on a constant value reducing valve, so that the valve has the one-way reducing effect. The structure applied to a hydraulic system can effectively control load of a hydraulic cylinder in one way without affecting the feeding and returning speeds of the hydraulic cylinder.
Description
Technical field
The utility model relates to the hydraulic product technical field, and concrete relating to is a kind of for the hydraulic control one way pressure-reducing valve.
Background technique
Hydrovalve is an important component part of hydraulic system, and a simple or complicated hydraulic system all be can't do without hydrovalve.Whether the performance of hydrovalve is reliable, is to be related to the problem that can whole hydraulic system work.
Hydrovalve is to control the flow direction of fluid in the hydraulic system or regulate pressure and flow, so it can be divided into directional control valve, pressure valve and Flow valve three major types.The valve that shape is identical can be because of the difference of mechanism of action, and has different functions.Pressure valve and Flow valve utilize the throttling action of passage section controlling pressure and the flow of system, and directional control valve then utilizes the replacing of through-flow channel controlling the flow direction of fluid.Although hydrovalve exists various different type, keeping some substantially common points between them.Structurally, all valves have unit, the parts (such as spring, electromagnet etc.) of valve body, spool and the action of driving spool to form; On working principle, pressure reduction and the relation that flows through between the flow of valve all meet the aperture flow formula between the openings of sizes of all valves, valve inlet/outlet, only are that the parameter of various valves controls is different.Basic demand to hydrovalve is to be active in one's movements, and uses reliably, and shock and vibration are little during work; The pressure loss that fluid flows through is little; Good seal performance; Compact structure, installation, adjustment, use, easy to maintenance, versatility is large.
Realize in the hydraulic system of one way pressure-reducing valve function that at needs the Functional Design that reaches demand often needs to adopt two or more hydrovalve combinations, system is complicated.
The shortcoming of existing product mainly contains:
1. medium-sized reduction valve do not have effectively to control single channel the control oil hydraulic cylinder load and the worker that do not affect oil hydraulic cylinder advances, worker's back speed degree.
2. the mode that having the plain edition reduction valve now often needs to design manifold block employing position bypass pipe arrangement reaches same function.The integrated degree of hydraulic system is low like this.
The model utility content
Technical problem to be solved in the utility model is that the shortcoming for existing in the background technique overcomes problems of the prior art, a kind of novel one way pressure-reducing valve is provided, and the integrated hydraulic module improves the valve group to the control accuracy of hydraulic system, reduce system's installing space, save cost.
A kind of one way pressure-reducing valve, comprise the body, Hexagonal jacket, the set of knobs that connect in turn, the slide-bar that is provided with in the body the inside, the slide-bar top is provided with steel ball, and the slide-bar top connects a spring seat, and spring seat is provided with spring, steel ball, spring seat, spring are contained in the Hexagonal jacket the inside, the spring seat the other end connects a regulating lever, in regulating lever is contained in, also has been provided with the needle-valve of bypass single effect in the body.
Described needle-valve also is connected with spring, locating stud and chock plug in turn.
Arranged outside at body has the plug screw of blocking slide-bar, and plug screw is provided with the pressure gauge fixed base.
Beneficial effect, this one way pressure-reducing valve are a kind of one-way valves that designs a bypass on Fixed pressure reducing valve, make it play the effect of unidirectional decompression.The application of this structure in hydraulic system, the effectively load of the control oil hydraulic cylinder of single channel and the worker that do not affect oil hydraulic cylinder advances, worker's back speed degree.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the internal structure schematic representation of one way pressure-reducing valve described in the utility model.
Fig. 2 is the structure principle chart of one way pressure-reducing valve described in the utility model.
Fig. 3 is the pressure drop performance curve synoptic diagram of one way pressure-reducing valve described in the utility model.
Fig. 4 is the pressure versus flow discharge curve schematic representation of one way pressure-reducing valve described in the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, the structure characteristic of one way pressure-reducing valve is that it comprises body 1, slide-bar 2, the first spring seat 3, the second spring seat 4, pressure gauge fixed base 5, Hexagonal jacket 6, regulating lever 7, spring 8, O type circle 9, steel ball 10, O type circle 11, O type circle 12, O type circle 13, O type circle 14, back bracket ring 15, plug screw 16, needle-valve 17, chock plug 18, locating stud 19, spring 20, set of knobs 21.Wherein slide-bar 2 is contained in body 1 the inside, can slide smoothly, steel ball 10, the first spring seat 3, spring 8 and the second spring seat 4 are contained in Hexagonal jacket 6 the insides successively, set of knobs 21 is contained in above the regulating lever 7, be spun on together and play the pressure regulating action above the Hexagonal jacket 6, needle-valve 17, spring 20, locating stud 19 and chock plug 18 are organized successively and are stood in together, have made up the bypass single effect.
In the Hydraulic Industry field, come from functional aspect minute, reduction valve generally comprises three kinds of definite value, fixed poor and Proprutioning pressure reducing valves.Novel one way pressure-reducing valve is a kind of Fixed pressure reducing valve that can control unidirectional decompression.The effect of Fixed pressure reducing valve is to keep its outlet pressure substantially constant when different operating modes (different inlet pressures or different flow).When requiring to obtain one in the location of hydraulic system such as lathe, the clamp device during than the low constant pressure (secondary pressure) of working connection pressure (pressure), adopting Fixed pressure reducing valve is a kind of selection of saving cost of equipment.Therefore, Fixed pressure reducing valve is widely used in hydraulic system.
The basic functional principle of reduction valve is throttling and pressure feedback, and Fixed pressure reducing valve is by the feedback effect of pressure and input quantity, and automatic regulating valve mouth orifice size size makes the secondary pressure of output substantially keep constant.Listed the structure principle chart of this one way pressure-reducing valve among Fig. 2, after the hydraulic oil process solenoid valve commutation through hydrovalve, a pressure oil by feed liquor pressure valve oil circuit enters the A mouth, when induced pressure (secondary press mouthful) when not reaching the adjusting pressure of valve, slide-bar makes the valve port standard-sized sheet under spring-force driven dual, the oil flow all flows through the decompression valve port, and a secondary pressure is almost equal; When induced pressure continues to raise, when meeting and exceeding the pressure adjusting spring setting power of adjusting knob, slide-bar moves to left under the oil pressure effect, pass through like this throttling and the pressure feedback of slide-bar, the hydraulic oil of secondary pressure enters oil hydraulic cylinder after the decompression, handle by the regulator solution pressure valve can be controlled the hydraulic fluid pressure that enters oil hydraulic cylinder, thus the load of control oil hydraulic cylinder; When oil hydraulic cylinder resetted, directly to going out the hydrovalve oil circuit, the hydraulic oil that goes out like this oil hydraulic cylinder was a straight-through process to hydraulic oil by the relief pressure valve cartridge that goes out the oil hydraulic cylinder oil circuit and walk around hydrovalve through one-way valve, and the reset speed of oil hydraulic cylinder can not be subjected to the impact of reduction valve.
It is that secondary pressure can keep constant when load or flow or a pressure variation that the steady-state characteristic of this one way pressure-reducing valve requires, and the worker of oil hydraulic cylinder moves back the impact that can not be subjected to hydrovalve.
Listed the pressure drop performance curve of this one way pressure-reducing valve among Fig. 3; Wherein 1. curve is at oiler and uses pressure drop and flow changing curve between mouth, and wherein 2. curve is at oil outlet and uses pressure drop and flow changing curve between mouth.
Listed the pressure versus flow discharge curve of this one way pressure-reducing valve among Fig. 4.
Fig. 3,4 characterized this one way pressure-reducing valve in the course of the work Pressure Drop to concrete the variation and the situation of change of secondary pressure under different flow of performance of flow; The increase of pressure drop flow changes that secondary pressure has shown that with the variation of flow is milder the performance of this valve is better among mild and Fig. 4 among Fig. 3.
The advantage of present embodiment is as follows:
1. the application of this one way pressure-reducing valve in hydraulic system, can effectively control single channel the control oil hydraulic cylinder load and the worker that do not affect oil hydraulic cylinder advances, worker's back speed degree.
2. the integrated degree of novel one way pressure-reducing valve hydraulic system is high, can reduce system space.
When 3. the load flow of this one way pressure-reducing valve changed, the steady-state characteristic of secondary pressure was better, and dynamic response performance is superior.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not subjected to the restriction of above-mentioned example; that describes in above-mentioned example and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. one way pressure-reducing valve, it is characterized in that, comprise the body, Hexagonal jacket, the set of knobs that connect in turn, at the slide-bar that is provided with of body the inside, the slide-bar top is provided with steel ball, the slide-bar top connects a spring seat, spring seat is provided with spring, and steel ball, spring seat, spring are contained in the Hexagonal jacket the inside, and the spring seat the other end connects a regulating lever, in regulating lever is contained in, also be provided with the needle-valve of bypass single effect in the body.
2. a kind of one way pressure-reducing valve according to claim 1 is characterized in that, described needle-valve also is connected with spring, locating stud and chock plug in turn.
3. a kind of one way pressure-reducing valve according to claim 1 is characterized in that, in the arranged outside of body the plug screw of blocking slide-bar is arranged, and plug screw is provided with the pressure gauge fixed base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320271167 CN203257782U (en) | 2013-05-17 | 2013-05-17 | One-way reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320271167 CN203257782U (en) | 2013-05-17 | 2013-05-17 | One-way reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257782U true CN203257782U (en) | 2013-10-30 |
Family
ID=49470351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320271167 Expired - Fee Related CN203257782U (en) | 2013-05-17 | 2013-05-17 | One-way reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257782U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387828A (en) * | 2017-09-04 | 2017-11-24 | 东莞市旭欧精密五金制品有限公司 | A kind of Depressure valve |
| CN110671520A (en) * | 2019-10-12 | 2020-01-10 | 段井胜 | One-way pressure reducing valve with safety function |
| CN113983018A (en) * | 2021-10-28 | 2022-01-28 | 浙江华巨液压科技有限公司 | One-way pressure reducing valve |
-
2013
- 2013-05-17 CN CN 201320271167 patent/CN203257782U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387828A (en) * | 2017-09-04 | 2017-11-24 | 东莞市旭欧精密五金制品有限公司 | A kind of Depressure valve |
| CN110671520A (en) * | 2019-10-12 | 2020-01-10 | 段井胜 | One-way pressure reducing valve with safety function |
| CN110671520B (en) * | 2019-10-12 | 2020-11-06 | 广东泰恩流体控制设备有限公司 | One-way pressure reducing valve with safety function |
| CN113983018A (en) * | 2021-10-28 | 2022-01-28 | 浙江华巨液压科技有限公司 | One-way pressure reducing valve |
| CN113983018B (en) * | 2021-10-28 | 2023-08-18 | 浙江三尚智迪科技有限公司 | One-way pressure reducing valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20170517 |