CN204942718U - Lever type is from force regulating valve - Google Patents
Lever type is from force regulating valve Download PDFInfo
- Publication number
- CN204942718U CN204942718U CN201520632624.5U CN201520632624U CN204942718U CN 204942718 U CN204942718 U CN 204942718U CN 201520632624 U CN201520632624 U CN 201520632624U CN 204942718 U CN204942718 U CN 204942718U
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- valve
- water
- rod
- lever type
- bar
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Abstract
Present patent application relates to modulating valve technical field, discloses a kind of Lever type from force regulating valve.The program comprises valve body, water-inlet cavity in valve body is connected by valve port with water chamber, spool is arranged on this valve port place and is driven by valve rod and carries out opening and closing valve port, also comprise actuator and feedback mechanism, actuator comprises and is combined to form installation cavity by upper cover and lower cover, the execution bar having pressing plate in this installation cavity and be connected with pressing plate, this execution bar lower end is fixedly connected with by sleeve with valve rod, is furnished with return spring between pressing plate and lower cover; Feedback mechanism comprises and connects the feedback channel of water-inlet cavity, and feedback channel is connected with oil hydraulic cylinder, and upper cover is fixedly connected with adjusting seat, adjusting seat is hinged with a connecting rod, and the two ends of connecting rod are hinged with the piston rod performed on the upper end of bar and oil hydraulic cylinder respectively.By the setting of laborsaving bar thick stick, feedback mechanism is triggered more easily, compared with prior art, sensitivity improves.
Description
Technical field
The utility model relates to modulating valve technical field, particularly relates to a kind of Lever type from force regulating valve.
Background technique
Self-operated valve relies on the pressure itself flowing through interior medium as driven by energy valve automatic operation, does not need ABAP Adapter and secondary meter.Direct-operated regulator all utilizes the feedback signal of valve output terminal (pressure, pressure reduction, temperature) to be delivered to actuator by signal tube and drives flap to change the aperture of valve, reach the object regulating pressure, flow, temperature.
Existing direct-operated regulator structure comprises valve body, spool, adjustable lever, actuator, feedback mechanism, control pipeline, wherein have valve road in valve body, spool is arranged in the valve port in valve road, make valve port open during the moving up and down of spool or close, the movement of spool is controlled by adjustable lever, adjustable lever is connected with actuator, control water-inlet cavity and the feedback mechanism in pipeline connecting valve road, the output terminal of feedback mechanism is connected with execution architecture, its principle is that the water in water-inlet cavity enters control valve line after throttling, when the hydraulic pressure of water-inlet cavity is larger, control hydraulic pressure in pipeline by signal feed back to feedback mechanism, the execution architecture be attached thereto is made to drive adjustable lever to move down, valve port turns down by spool, otherwise, when the hydraulic pressure of water-inlet cavity is less, valve port turns down by spool.Shell inner cavity is divided into upper chamber and lower chambers by the diaphragm that existing feedback mechanism comprises in shell, shell, bottom chamber is sliding combined with the shifting board be connected with execution architecture, return spring is provided with between diaphragm and shifting board, upper chamber communicates with control pipeline, the variation in water pressure of upper chamber makes diaphragm deformation, overcomes the elastic force of spring and promotes shifting board slip.
This structure directly overcomes the elastic force of spring by fluid pressure, but in real work, some liquid pressures are less, its pressure can not overcome the elastic force of spring, do not have the action that lower pressing spring realizes regulating, feedback performance is poor, and sensitivity is low, the fluid very little for pressure cannot regulate, or regulating effect is poor.
Model utility content
The utility model is intended to provide a kind of foul feedback sensitivity high, and the Lever type be suitable for equally for little pressure liquid is from force regulating valve.
Lever type in this programme is from force regulating valve, comprise valve body, water-inlet cavity in valve body is connected by valve port with water chamber, spool is arranged on this valve port place and is driven by valve rod and carries out opening and closing valve port, also comprise actuator and feedback mechanism, described actuator comprises and is combined to form installation cavity by upper cover and lower cover, the execution bar having pressing plate in this installation cavity and be connected with pressing plate, this execution bar lower end is fixedly connected with by sleeve with valve rod, is furnished with return spring between pressing plate and lower cover; Described feedback mechanism comprises the feedback channel connecting water-inlet cavity, feedback channel is connected with oil hydraulic cylinder, described upper cover is fixedly connected with adjusting seat, adjusting seat is hinged with a connecting rod, and the two ends of connecting rod are hinged with the piston rod on the upper end of described execution bar and oil hydraulic cylinder respectively.
The beneficial effect of this programme: liquid flows into water chamber from water-inlet cavity, the middle adjustment being carried out openings of sizes by spool, in water-inlet cavity, a part of pressured fluid flows into feedback channel, when pressure is enough large, pressured fluid promotes oil hydraulic cylinder, and piston rod, connecting rod and execution bar three form laborsaving lever, take adjustment seat as fulcrum, piston rod indirectly promotes to perform bar and moves down, and performs the elastic force that bar overcomes spring and presses down valve rod, from but spool close or turn down valve port.By the setting of laborsaving bar thick stick, feedback mechanism is triggered more easily, compared with prior art, sensitivity improves.
Optimization to this programme: described adjusting seat comprises pedestal, sleeve, threaded stem, described pedestal is fixedly connected on and covers, and this pedestal is provided with circular groove, and bottom portion of groove is provided with recessed edge, the described jacket casing that bottom is provided with flange is connected in groove, and bush whorl is connected to threaded stem.By turn sleeve, threaded stem moves up and down, and regulates threaded stem tip height, thus indirect regulation performs the initial position of bar, regulates the initial opening degree of valve port, controls the initial flow of liquid.
Optimization to this programme: be provided with control valve between described water-inlet cavity and feedback channel, switching control pilot can be selected the need of carrying out feedback flow control.
Optimization to this programme: the number of described return spring is two groups, and symmetrical to perform line centered by bar, restoring force is larger, and speed of replying is fast.
Optimization to this programme: the position of described valve rod and valve body contact is equipped with gland packing box, prevent medium to be brought in valve body along with the movement of valve rod, sealing effect is better.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Lever type from force regulating valve embodiment.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference character in Figure of description comprises: water-inlet cavity 1, water chamber 2, spool 31, valve rod 32, gland packing box 33, execution bar 34, return spring 41, gland 42, lower cover 51, upper cover 52, feedback channel 61, control valve 62, oil hydraulic cylinder 63, piston rod 64, connecting rod 65, pedestal 71, sleeve 72, threaded stem 73.
Embodiment is substantially as shown in Figure 1:
This Lever type, from force regulating valve, comprises valve body, actuator and feedback mechanism, wherein the valve port folding of actuating mechanism controls valve inner, controls fluid flow; Meanwhile, actuator has feedback mechanism to control, and feedback mechanism connects water-inlet cavity 1, is controlled by fluid pressure.
Concrete, the water-inlet cavity 1 in valve body is connected by valve port with water chamber 2, and spool 31 is arranged on valve port place and is driven by valve rod 32 and carries out valve port opening and closing.Upper cover 52 and lower cover 51 are all cover body shape, be bolted and be combined to form installation cavity, pressing plate 42 in installation cavity adopts with execution bar 34 and is welded to connect, and this execution bar 34 lower end is fixedly connected with by sleeve with valve rod 32, and return spring 41 is arranged between pressing plate 42 and lower cover 51.Water-inlet cavity 1 is communicated with feedback channel 61, between control valve 62 is installed, control valve 62 adopts common pipe switch just passable, can select the need of carrying out feedback flow control.Connecting fluid cylinder pressure 63 on feedback channel 63, oil hydraulic cylinder 63 is fixed on working platform, as the force bearing point of piston rod 64.Upper cover 52 is fixedly connected with adjusting seat, adjusting seat is hinged with connecting rod 65, the two ends of connecting rod 65 are hinged with the piston rod 64 performed on bar 34 and oil hydraulic cylinder 63 respectively, focus on the articulating point of connecting rod 65 in adjusting seat and be less than the perpendicular distance with piston rod 64 with the perpendicular distance performing bar 34, this is the necessary feature of laborsaving bar thick stick.
Lower cover 51 is threaded on the otic placode with valve body by a pole, plays a supportive role to lower cover 51.The number of return spring 41 is two groups, and symmetrical to perform line centered by bar 34, and restoring force is larger, and speed of replying is fast.Valve rod 32 is equipped with gland packing box 33 with the position of valve body contact, and prevent medium to be brought in valve body along with the movement of valve rod 32, sealing effect is better.
Adjusting seat comprises pedestal 71, sleeve 72, threaded stem 73, pedestal 71 is fixedly connected on upper cover 52, this pedestal 71 is provided with circular groove, bottom portion of groove is provided with recessed edge, the sleeve 72 that bottom is provided with flange is socketed in groove, flange is connected in recessed edge simultaneously, and but sleeve 72 can rotate can not move up and down on pedestal 71, and threaded stem 73 is threaded on sleeve 72.By turn sleeve 72, threaded stem 72 moves up and down, and regulates threaded stem 72 tip height, thus indirect regulation performs the elemental height of bar 34, regulates the initial opening degree of valve port, controls the initial flow of liquid.
Working principle: liquid flows into water chamber 2 from water-inlet cavity 1 by valve port, the middle adjustment being carried out valve port size by spool 31, in water-inlet cavity 1, a part of pressured fluid flows into feedback channel 61, when pressure is enough large, pressured fluid promotes the piston rod 64 in oil hydraulic cylinder 63 moves, piston rod 64, connecting rod 65, and execution bar 34 three forms laborsaving lever, with threaded stem 73 top for fulcrum, piston rod 64 indirectly promotes to perform bar 34 and moves down, the elastic force that execution bar 34 overcomes return spring 41 presses down valve rod 32, thus make spool 31 close or turn down valve port, realize Flow-rate adjustment.For the difference of fluid pressure size in water-inlet cavity 1, the folding degree of valve port also can be different, indirectly control fluid flow.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (5)
1. a Lever type is from force regulating valve, comprise valve body, water-inlet cavity in valve body is connected by valve port with water chamber, spool is arranged on this valve port place and is driven by valve rod and carries out opening and closing valve port, it is characterized in that: also comprise actuator and feedback mechanism, described actuator comprises and is combined to form installation cavity by upper cover and lower cover, the execution bar having pressing plate in this installation cavity and be connected with pressing plate, this execution bar lower end is fixedly connected with by sleeve with valve rod, is furnished with return spring between pressing plate and lower cover; Described feedback mechanism comprises the feedback channel connecting water-inlet cavity, feedback channel is connected with oil hydraulic cylinder, described upper cover is fixedly connected with adjusting seat, adjusting seat is hinged with a connecting rod, and the two ends of connecting rod are hinged with the piston rod on the upper end of described execution bar and oil hydraulic cylinder respectively.
2. Lever type according to claim 1 is from force regulating valve, it is characterized in that: described adjusting seat comprises pedestal, sleeve, threaded stem, described pedestal is fixedly connected on and covers, this pedestal is provided with circular groove, bottom portion of groove is provided with recessed edge, the described jacket casing that bottom is provided with flange is connected in groove, and threaded stem is threaded on sleeve.
3. Lever type according to claim 1 is from force regulating valve, it is characterized in that: be provided with control valve between described water-inlet cavity and feedback channel.
4. Lever type according to claim 1 is from force regulating valve, it is characterized in that: the number of described return spring is two groups, and line is symmetrical centered by performing bar.
5. Lever type according to claim 1 is from force regulating valve, it is characterized in that: the position of described valve rod and valve body contact is equipped with gland packing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520632624.5U CN204942718U (en) | 2015-08-21 | 2015-08-21 | Lever type is from force regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520632624.5U CN204942718U (en) | 2015-08-21 | 2015-08-21 | Lever type is from force regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942718U true CN204942718U (en) | 2016-01-06 |
Family
ID=55010147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520632624.5U Expired - Fee Related CN204942718U (en) | 2015-08-21 | 2015-08-21 | Lever type is from force regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942718U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321455A (en) * | 2022-03-14 | 2022-04-12 | 山东海科创新研究院有限公司 | High-viscosity liquid micro-pressure relief equipment |
| CN115183588A (en) * | 2022-06-24 | 2022-10-14 | 湖北华磁电子科技有限公司 | Air interchanger with cooling function |
-
2015
- 2015-08-21 CN CN201520632624.5U patent/CN204942718U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321455A (en) * | 2022-03-14 | 2022-04-12 | 山东海科创新研究院有限公司 | High-viscosity liquid micro-pressure relief equipment |
| CN114321455B (en) * | 2022-03-14 | 2022-05-27 | 山东海科创新研究院有限公司 | High-viscosity liquid micro-pressure relief equipment |
| CN115183588A (en) * | 2022-06-24 | 2022-10-14 | 湖北华磁电子科技有限公司 | Air interchanger with cooling function |
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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: 20160106 Termination date: 20160821 |