CN211715862U - Single-spring type balance structure for dynamic differential pressure balance threaded valve - Google Patents
Single-spring type balance structure for dynamic differential pressure balance threaded valve Download PDFInfo
- Publication number
- CN211715862U CN211715862U CN201922261872.4U CN201922261872U CN211715862U CN 211715862 U CN211715862 U CN 211715862U CN 201922261872 U CN201922261872 U CN 201922261872U CN 211715862 U CN211715862 U CN 211715862U
- Authority
- CN
- China
- Prior art keywords
- film cavity
- spring
- adjusting nut
- valve
- cavity
- 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.)
- Active
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a single spring formula balanced structure for balanced screw valve of dynamic pressure difference, only adopted a spring in this balanced structure can realize balanced regulation, wherein, because through screw-thread fit between adjusting nut and the regulation pole, when rotatory regulation pole, adjusting nut can adjust the pole relatively and move along vertically in last membrane cavity, and then change the distance between adjusting nut upper edge and the spring holder, make the spring take place elastic deformation, produce the elastic force, this elastic force transmits diaphragm department through the valve rod, realize balanced regulation; the dynamic differential pressure balance valve has the advantages of simple structure, reasonable design, low manufacturing cost and the like.
Description
Technical Field
The utility model discloses a technical field of dynamic balance valve especially relates to a single spring formula balanced structure for dynamic pressure differential balance screw valve.
Background
The dynamic pressure difference balance valve is a valve which can automatically balance the pressure difference without external energy source depending on the pressure change of the medium, and is suitable for central air-conditioning hydraulic balance systems and regional heating hydraulic balance systems. Meanwhile, the dynamic differential pressure balance valve can keep the differential pressure on two sides of the system load constant, so that the valve weight of the control valve can be improved while the differential pressure on two ends of the control valve is constant, and the stability and the precision of the control valve are improved. The water flow limiting device also has the function of limiting water flow, and has the function of reducing noise for the control valve.
At present, two springs are arranged in a balance structure of a dynamic differential pressure balance threaded valve, are respectively positioned on two sides of a diaphragm and are abutted against the upper surface and the lower surface of the diaphragm, and although balance adjustment can be realized, the problems of more component parts, complex structure and the like exist.
Therefore, how to develop a new dynamic differential pressure balance valve to solve the above problems is a problem to be solved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a single spring formula balanced structure for balanced screwed valve of dynamic pressure differential to solve the many, the complicated scheduling problem of structure of component part that current balanced structure exists at least.
The utility model provides a technical scheme specifically does, a single spring formula balanced structure for dynamic pressure differential balance screw valve, include: the device comprises a lower film cavity 1, a valve rod 2, an upper film cavity 3, an adjusting rod 4, an adjusting nut 5, a spring seat 6, a spring 7 and a diaphragm 8;
the upper end of the lower film cavity 1 is open, and the lower end of the lower film cavity is provided with a first mounting hole 11;
the valve rod 2 is arranged in the first mounting hole 11, and the upper part of the valve rod 2 passes through the upper end opening of the lower film cavity 1 and is positioned outside the lower film cavity 1;
the upper film cavity 3 is buckled and arranged at an upper end opening of the lower film cavity 1 and sleeved on the outer side of the upper part of the valve rod 2, and a second mounting hole 31 is formed in the upper end face of the upper film cavity 3;
the adjusting rod 4 penetrates through the second mounting hole 31, one end of the adjusting rod is positioned outside the upper film cavity 3, and the other end of the adjusting rod is positioned inside the upper film cavity 3;
the adjusting nut 5 is positioned in the upper film cavity 3, one end of the adjusting nut is in threaded connection with the adjusting rod 4, and the other end of the adjusting nut is fixedly connected with the adjusting rod 4;
the spring seat 6 is sleeved outside the valve rod 2 and fixedly connected with the upper film cavity 3;
the spring 7 is sleeved outside the adjusting nut 5 and the valve rod 2, the upper end of the spring 7 abuts against the upper edge of the adjusting nut 5, and the lower end of the spring 7 abuts against the spring seat 6;
the diaphragm 8 is fixedly sleeved outside the valve rod 2 and clamped between the lower diaphragm cavity 1 and the upper diaphragm cavity 3.
Preferably, the upper film cavity 3 and the lower film cavity 1 are fixed in position through a clamp spring 9;
the inner wall of the lower film cavity 1 is provided with a clamping groove, and the clamp spring 9 is arranged in the clamp spring groove of the lower film cavity 1 and fixes the upper film cavity 3 in the lower film cavity 1.
Further preferably, a screw hole is formed in the side wall of the upper film cavity 3, and an exhaust screw 32 is installed in the screw hole.
Further preferably, an O-ring 10 is disposed between the adjustment lever 4 and the second mounting hole 31.
The utility model provides an among the single spring formula balanced structure for balanced ooff valve of dynamic pressure differential, only adopted a spring just can realize balanced regulation, particularly, because adjusting nut and regulation pole between through screw-thread fit, when the rotation regulation pole, adjusting nut can adjust the pole relatively and vertically remove along last membrane chamber, and then change adjusting nut go up along with the spring holder between the distance, make the spring take place elastic deformation, produce the elastic force, this elastic force passes through valve rod transmission diaphragm department, realize balanced regulation.
The utility model provides a single spring formula balanced structure for balanced screwed valve of dynamic pressure difference has advantages such as simple structure, reasonable in design, cost of manufacture low.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a single-spring balance structure for a dynamic differential pressure balance screw valve according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.
In view of the problems of multiple components, complex structure and the like of dynamic balance valves in the prior art, the embodiment provides a balance structure with a simple structure on the basis of keeping the balance adjustment capability thereof, and particularly referring to fig. 1, the balance structure mainly comprises a lower film cavity 1, a valve rod 2, an upper film cavity 3, an adjusting rod 4, an adjusting nut 5, a spring seat 6, a spring 7 and a diaphragm 8, wherein the upper end of the lower film cavity 1 is open, the lower end of the lower film cavity is provided with a first mounting hole 11, the valve rod 2 is mounted in the first mounting hole 11, the upper part of the valve rod 2 passes through the upper end opening of the lower film cavity 1 and then is positioned outside the lower film cavity 1, the upper film cavity 3 is buckled and mounted at the upper end opening of the lower film cavity 1 and sleeved outside the upper part of the valve rod 2, the upper end face of the upper film cavity 3 is provided with a second mounting hole 31, the adjusting rod 4 passes through the second mounting hole 31, and one end, the other end is located the inside of last membrane chamber 3, adjusting nut 5 is located last membrane chamber 3, one end and 4 threaded connection of regulation pole, the other end and 4 fixed connection of regulation pole, 6 suit in the outside of valve rod 2 of spring holder, with last membrane chamber 3 fixed connection, 7 suit in the outside of adjusting nut 5 and valve rod 2 of spring, and the upper end of spring 7 offsets with adjusting nut 5's last edge, the lower extreme offsets with spring holder 6, 8 fixed suit in the outside of valve rod 2 of diaphragm, and the centre gripping is between lower membrane chamber 1 and last membrane chamber 3.
The specific working process of the balance structure is as follows: the adjusting rod is rotated according to a set value of a system, the adjusting nut is located at a corresponding position, the spring is located between the upper edge of the adjusting nut and the spring seat, the spring seat is fixed relative to the upper membrane cavity, and after the adjusting nut is fixed, the elastic deformation of the spring is always in a fixed value.
Above-mentioned fixed mode of going up membrane chamber 3 and lower membrane chamber 1 can select the multiple, as long as can realize between the two fixed can, wherein, the comparatively simple form of mounting means does, carries out the rigidity with the two through jump ring 9, specifically, is provided with the draw-in groove at the inner wall of lower membrane chamber 1, and above-mentioned jump ring 9 adorns in the jump ring inslot of lower membrane chamber 1 to going up in membrane chamber 3 is fixed in lower membrane chamber 1, and then realize the rigidity between the two.
In order to improve the accuracy of the balance valve during balance adjustment, as an improvement of the technical scheme, referring to fig. 1, a screw hole is formed in the side wall of the upper diaphragm cavity 3, an exhaust screw 32 is installed in the screw hole, and the exhaust screw can be used for exhausting gas in the high-pressure cavity when a high-pressure medium enters the high-pressure cavity, so that the interference of air on the balance function of the valve is avoided.
In order to improve the sealing between the adjusting rod and the upper diaphragm chamber, as an improvement of the technical scheme, an O-shaped ring 10 is arranged between the adjusting rod 4 and the second mounting hole 31.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (4)
1. A single spring type balance structure for a dynamic differential pressure balanced threaded valve, comprising: the device comprises a lower film cavity (1), a valve rod (2), an upper film cavity (3), an adjusting rod (4), an adjusting nut (5), a spring seat (6), a spring (7) and a diaphragm (8);
the upper end of the lower film cavity (1) is open, and the lower end of the lower film cavity is provided with a first mounting hole (11);
the valve rod (2) is arranged in the first mounting hole (11), and the upper part of the valve rod (2) penetrates through the upper end opening of the lower film cavity (1) and is positioned outside the lower film cavity (1);
the upper film cavity (3) is mounted at an upper end opening of the lower film cavity (1) in a buckled mode and sleeved on the outer side of the upper part of the valve rod (2), and a second mounting hole (31) is formed in the upper end face of the upper film cavity (3);
the adjusting rod (4) penetrates through the second mounting hole (31), one end of the adjusting rod is positioned outside the upper film cavity (3), and the other end of the adjusting rod is positioned inside the upper film cavity (3);
the adjusting nut (5) is positioned in the upper film cavity (3), one end of the adjusting nut is in threaded connection with the adjusting rod (4), and the other end of the adjusting nut is in sliding connection with the adjusting rod (4);
the spring seat (6) is sleeved outside the valve rod (2) and is fixedly connected with the upper film cavity (3);
the spring (7) is sleeved outside the adjusting nut (5) and the valve rod (2), the upper end of the spring (7) abuts against the upper edge of the adjusting nut (5), and the lower end of the spring (7) abuts against the spring seat (6);
the diaphragm (8) is fixedly sleeved outside the valve rod (2) and clamped between the lower diaphragm cavity (1) and the upper diaphragm cavity (3).
2. The single spring type balance structure for the dynamic differential pressure balance threaded valve according to claim 1, characterized in that the upper diaphragm chamber (3) and the lower diaphragm chamber (1) are fixed in position by a clamp spring (9);
the inner wall of the lower film cavity (1) is provided with a clamping groove, and the clamp spring (9) is arranged in the clamp spring groove of the lower film cavity (1) and fixes the upper film cavity (3) in the lower film cavity (1).
3. The single spring type balance structure for the dynamic differential pressure balance threaded valve according to claim 1, characterized in that a screw hole is provided on the side wall of the upper diaphragm chamber (3), and an exhaust screw (32) is installed in the screw hole.
4. Single spring balance structure for a dynamic differential pressure balanced threaded valve according to claim 1, characterized in that an O-ring (10) is arranged between the adjusting rod (4) and the second mounting hole (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261872.4U CN211715862U (en) | 2019-12-16 | 2019-12-16 | Single-spring type balance structure for dynamic differential pressure balance threaded valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261872.4U CN211715862U (en) | 2019-12-16 | 2019-12-16 | Single-spring type balance structure for dynamic differential pressure balance threaded valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211715862U true CN211715862U (en) | 2020-10-20 |
Family
ID=72816739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922261872.4U Active CN211715862U (en) | 2019-12-16 | 2019-12-16 | Single-spring type balance structure for dynamic differential pressure balance threaded valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211715862U (en) |
-
2019
- 2019-12-16 CN CN201922261872.4U patent/CN211715862U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2022151818A1 (en) | High-precision and large-pressure-reduction-ratio automatic pressure-regulating gas pressure-stabilizing and pressure-reducing combined valve | |
| CN202972081U (en) | Self-operated differential pressure balance valve | |
| CN202630539U (en) | Heating power expansion valve for vibration attenuation and noise elimination | |
| KR20110121601A (en) | Valve with a delta p-function and a flow limiting function | |
| CN211715862U (en) | Single-spring type balance structure for dynamic differential pressure balance threaded valve | |
| CN110486511A (en) | A kind of pressure regulator valve | |
| CN211820909U (en) | Forged dynamic differential pressure balance threaded valve with T-shaped valve body flow channel | |
| CN206145241U (en) | Inner piston balanced type self -operated regulator | |
| CN210830634U (en) | Low-temperature precise pressure regulating valve | |
| CN208619710U (en) | A kind of gas-fired equipment pressure reducing valve | |
| CN204437313U (en) | Automobile air conditioning system Split type valve core | |
| CN203272897U (en) | Small water ring vacuum pump suction inlet check valve | |
| CN113566004B (en) | Flow control valve, air-conditioning water system and hydraulic balance debugging method thereof | |
| CN213900017U (en) | Dynamic balance valve | |
| CN210440601U (en) | Adjustable differential pressure control valve | |
| CN210950075U (en) | Pressure reducer with stable outlet pressure | |
| CN209587252U (en) | A kind of self-power differential pressure balanced valve | |
| CN204878919U (en) | Dynamic balancing electric two -way valve | |
| CN208670186U (en) | Barometric damper | |
| CN208381327U (en) | A kind of gravity-compensated device of pressure independent type volume control damper | |
| CN219827757U (en) | Diaphragm structure of valve | |
| CN2516776Y (en) | Flow balanced valve | |
| CN215721080U (en) | Dynamic differential pressure balance valve | |
| CN212429877U (en) | Self-operated differential pressure control valve | |
| CN207795723U (en) | A kind of screw thread inserting type logical valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |