CN204942553U - The valve of adjustable opening and closing frequency - Google Patents
The valve of adjustable opening and closing frequency Download PDFInfo
- Publication number
- CN204942553U CN204942553U CN201520632638.7U CN201520632638U CN204942553U CN 204942553 U CN204942553 U CN 204942553U CN 201520632638 U CN201520632638 U CN 201520632638U CN 204942553 U CN204942553 U CN 204942553U
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- China
- Prior art keywords
- valve
- water
- spool
- cross bar
- bar
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- Expired - Fee Related
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- Mechanically-Actuated Valves (AREA)
Abstract
Present patent application belongs to modulating valve technical field, the valve of adjustable opening and closing frequency, 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, feedback mechanism comprises the impeller be arranged in water-inlet cavity, the rotating shaft of this impeller is connected with umbrella alligator, upper cover top surface is welded with fitting seat, this fitting seat has been rotatably assorted cross bar, and the cone tooth of cross bar one end engages with umbrella tooth, and the other end of cross bar is fixed with the cam with roller contact.The utility model directly can regulate the rotational velocity of impeller according to water velocity, when water velocity is larger, spool open frequency high (namely spool travelling speed is fast), when water velocity is lower, the frequency low (namely spool travelling speed is slow) that spool is opened, the utility model can adjust spool travelling speed according to water velocity, the opening and closing of intermittent control valve port.
Description
Technical field
The utility model belongs to modulating valve technical field.
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.
The shortcoming of such scheme is: in some mechanism, need the unlatching carrying out intermittent control spool according to the speed of current, time as larger in water velocity, spool open frequency (i.e. spool travelling speed) is high, when water velocity is lower, the frequency (i.e. spool travelling speed) that spool is opened is low.The structure that can meet above function is not now also had to occur in current modulating valve.
Model utility content
The utility model is intended to the valve providing the adjustable opening and closing frequency adjusting spool travelling speed according to water velocity.
The valve of the adjustable opening and closing frequency in this programme, 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, actuator comprises actuator and comprises and be 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, the upper end performing bar is run through upper cover and is connected with roller, is furnished with return spring between pressing plate and lower cover; Feedback mechanism comprises the impeller be arranged in water-inlet cavity, the rotating shaft of this impeller is connected with umbrella alligator, and upper cover top surface is welded with fitting seat, and this fitting seat has been rotatably assorted cross bar, the cone tooth of cross bar one end engages with umbrella tooth, and the other end of cross bar is fixed with the cam with roller contact.
Beneficial effect: when current enter water-inlet cavity, current can promote wheel rotation, wheel rotation makes rotating shaft drive umbrella tooth to rotate, thus cone tooth rotates and is with moving cam to rotate, when cam rotates, its convex surface makes that roller is intermittent to be moved down, and the elastic force overcoming return spring when roller moves down makes spool close port gradually, otherwise, when basal plane and the roller contact of cam, return spring effect makes valve rod moves, and spool opens valve port gradually.The utility model directly can regulate the rotational velocity of impeller according to water velocity, when water velocity is larger, spool open frequency high (namely spool travelling speed is fast), when water velocity is lower, the frequency low (namely spool travelling speed is slow) that spool is opened, the utility model can adjust spool travelling speed according to water velocity, the opening and closing of intermittent control valve port.
Further, described fitting seat is provided with the needle bearing coordinated with cross bar, cross bar is rotated more steady.
Further, this sleeve described comprises screw thread inner chamber, performs bar lower end and from top to bottom to screw in screw thread inner chamber and to pass through nut check, valve rod upper end to screw in from the bottom to top in screw thread inner chamber and passes through nut check, connect more firm, and execution bar and valve rod not easily misplace, power transmission efficiency is higher.
Further, the number of described return spring is two groups, and symmetrical to perform line centered by bar, and restoring force is larger, and speed of replying is fast.
Further, the position of described valve rod and valve body contact is equipped with gland packing box, and 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 valve of the adjustable opening and closing frequency of the utility model embodiment.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference character in Figure of description comprises: valve body 1, valve seat 2, spool 3, valve rod 4, execution bar 5, gland packing box 6, upper cover 7, lower cover 8, return spring 9, pressing plate 10, cam 11, roller 12, cross bar 13, cone tooth 14, umbrella tooth 15, rotating shaft 16, impeller 17, water-inlet cavity 18, water chamber 19.
The valve of the adjustable opening and closing frequency of embodiment is substantially as shown in Figure 1:
The valve of adjustable opening and closing frequency, is divided into feedback mechanism, actuator, valve body 1 three parts from top to bottom successively.
Have water-inlet cavity 18, water chamber 19 in valve body, water-inlet cavity 18 is communicated with by valve port with water chamber 19, and current flow to water chamber 19 from water-inlet cavity 18.Valve port place is equipped with valve seat 2, this valve seat 2 has the valve opening of taper.Valve rod 4 is vertically applied in valve body, and the lower end of valve rod 4 is the shape spool 3 of the taper of mating with valve opening, and with O-ring seals on spool 3 side face, valve rod 4 is equipped with gland packing box 6 with the position of valve body contact.
Actuator comprises upper cover 7, lower cover 8, and upper cover 7 and lower cover 8 are bolted formation installation cavity, comprise pressing plate 10 in this installation cavity, and pressing plate 10 neutral position has been bolted to connection and has performed bar 5.Perform bar 5 lower end to run through at the bottom of installation cavity chamber and be fixedly connected with by sleeve with the upper end of valve rod 4, concrete Placement is: this sleeve comprises screw thread inner chamber, perform bar 5 lower end from top to bottom to screw in screw thread inner chamber and by nut check, valve rod 4 upper end to screw in from the bottom to top in screw thread inner chamber and passes through nut check.Be furnished with the return spring 9 of two groups between pressing plate 10 and lower cover 8, these two groups of return springs 9 line centered by performing bar 5 is symmetrical.
Feedback mechanism comprises the impeller 17 being positioned at water-inlet cavity 18, the blade that impeller 17 comprises rotating shaft 16 and is welded in rotating shaft 16, the rotating shaft 16 of impeller 17 is arranged on the chamber wall of water-inlet cavity 18 by bearing, rotating shaft 16 protrudes upward to higher than upper cover 7, certain half side blade of import and impeller 17 of water-inlet cavity 18 is relative, makes water flow energy promote this impeller 17 and rotates.The free end of rotating shaft 16 is connected with umbrella tooth 15 flat key, and the flank of tooth of umbrella tooth 15 is engaged with cone tooth 14, the center flat key of this cone tooth 14 is connected with cross bar 13.Upper cover 7 end face is welded with fitting seat, needle bearing is equipped with in the mounting hole of fitting seat, the stage casing of cross bar 13 coordinates with needle bearing, the free end nibs of cross bar 13 is connected with cam 11, below this cam 11, perform bar 5 upper end have roller 12 by bearing assemble, this roller 12 can with the convex surface sliding contact of cam 11.
The working procedure of the present embodiment: when current enter water-inlet cavity 18, current can promote impeller 17 and rotate, impeller 17 rotates and makes rotating shaft 16 drive umbrella tooth 15 to rotate, thus cone tooth 14 rotates and is with moving cam 11 to rotate, when cam 11 rotates, its convex surface makes that the roller 12 that coordinates with it is intermittent to be moved down, roller 12 overcomes return spring 9 elastic force when moving down makes spool 3 close port gradually, otherwise, when the basal plane of cam 11 contacts with roller 12, return spring 9 effect makes valve rod 4 moves, and spool 3 opens valve port gradually.When the water velocity in water-inlet cavity 18 is larger, the rotational velocity of rotating shaft 16 is large, and the frequency that spool 3 opens or closes valve port is large, otherwise when the water velocity in water-inlet cavity 18 is less, the rotational velocity of rotating shaft 16 is little, and the frequency that spool 3 opens or closes valve port is little.
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. the valve of adjustable opening and closing frequency, 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, actuator comprises actuator and comprises and be 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, the upper end performing bar is run through upper cover and is connected with roller, is furnished with return spring between pressing plate and lower cover; Feedback mechanism comprises the impeller be arranged in water-inlet cavity, the rotating shaft of this impeller is connected with umbrella alligator, and upper cover top surface is welded with fitting seat, and this fitting seat has been rotatably assorted cross bar, the cone tooth of cross bar one end engages with umbrella tooth, and the other end of cross bar is fixed with the cam with roller contact.
2. the valve of adjustable opening and closing frequency according to claim 1, is characterized in that: described fitting seat is provided with the needle bearing coordinated with cross bar.
3. the valve of adjustable opening and closing frequency according to claim 2, it is characterized in that: this sleeve described comprises screw thread inner chamber, perform bar lower end from top to bottom to screw in screw thread inner chamber and by nut check, valve rod upper end to screw in from the bottom to top in screw thread inner chamber and passes through nut check.
4. the valve of adjustable opening and closing frequency according to claim 3, is characterized in that: the number of described return spring is two groups, and line is symmetrical centered by performing bar.
5. the valve of adjustable opening and closing frequency according to claim 4, 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 |
|---|---|---|---|
| CN201520632638.7U CN204942553U (en) | 2015-08-21 | 2015-08-21 | The valve of adjustable opening and closing frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520632638.7U CN204942553U (en) | 2015-08-21 | 2015-08-21 | The valve of adjustable opening and closing frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942553U true CN204942553U (en) | 2016-01-06 |
Family
ID=55009985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520632638.7U Expired - Fee Related CN204942553U (en) | 2015-08-21 | 2015-08-21 | The valve of adjustable opening and closing frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042093A (en) * | 2015-08-21 | 2015-11-11 | 重庆诚硕科技有限公司 | Valve with adjustable opening and closing frequency |
-
2015
- 2015-08-21 CN CN201520632638.7U patent/CN204942553U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042093A (en) * | 2015-08-21 | 2015-11-11 | 重庆诚硕科技有限公司 | Valve with adjustable opening and closing frequency |
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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 |