CN217815240U - Vacuum regulator - Google Patents
Vacuum regulator Download PDFInfo
- Publication number
- CN217815240U CN217815240U CN202221702434.2U CN202221702434U CN217815240U CN 217815240 U CN217815240 U CN 217815240U CN 202221702434 U CN202221702434 U CN 202221702434U CN 217815240 U CN217815240 U CN 217815240U
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- spring
- head
- valve
- regulator
- adjust
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Abstract
The utility model discloses a vacuum regulator, including the valve casing, be equipped with the regulation chamber in the valve casing, the valve body lateral surface is equipped with and adjusts the gas inlet and the gas outlet of chamber intercommunication, it is equipped with valve element to adjust the intracavity, valve element includes regulation head and regulator head, it is equipped with first external screw thread to adjust the head lateral surface, it is equipped with first internal thread to adjust the head medial surface, be equipped with the second internal thread with first external screw thread threaded connection in the valve casing, be equipped with first spring between regulation head and the regulator head, be equipped with the second spring in the first spring, second spring coil arranges in the clearance between the circle of first spring coil, first spring and second spring are coaxial each other, the regulator head is equipped with the annular groove, be equipped with O type sealing washer in the annular groove, be equipped with the valve rod above the regulator head, be equipped with adjusting element on the valve rod. The advantages are that: is convenient for manufacturing, assembling and adjusting.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a vacuum regulator.
Background
Pressure regulating valves, also known as vacuum regulators, include a valve housing having a regulating cavity that receives a regulating element. The chamber comprises an inlet for the gas and an outlet for the fluid conditioned by the conditioning element. The adjustment member is resiliently biased within the regulator housing cavity by a spring mounted between the adjustment member and the adjustment member. The spring typically includes a plurality of belleville washers. Regulator output regulation is typically required to achieve the desired outlet pressure. It can be time consuming to affect by many factors, such as imperfections in the disc springs, lubricants between the disc springs, machining tolerances, etc. Thus, the valve may need to be assembled, time consuming and labor intensive through numerous adjustments and disassembly, modifications, reassembly and readjustments before proper tuning performance is achieved.
SUMMERY OF THE UTILITY MODEL
The utility model provides an foretell technical problem, provide a vacuum regulator convenient to make, assemble and adjust.
In order to solve the technical problem, the utility model provides a technical scheme does: a vacuum regulator comprising a valve housing in which a regulating chamber is provided for receiving and regulating a gas, the outer side of the valve housing being provided with a gas inlet and a gas outlet communicating with the regulating chamber and being connected by suitable conduits to a system requiring the supply of regulating gas, the regulating chamber in the valve housing opening into an outlet chamber with a chamfered transition in the known regulator; the utility model discloses a valve, including adjusting the head, adjust the intracavity and be equipped with valve element, valve element is including adjusting head and regulator head, it is equipped with first external screw thread to adjust the head lateral surface, it is equipped with first internal thread to adjust the head medial surface, be equipped with the second internal thread with first external screw thread threaded connection in the valve casing, it is equipped with first spring to adjust between head and the regulator head, be equipped with the second spring in the first spring, second spring coil arranges in the clearance between the circle of first spring coil, first spring and second spring are coaxial each other, the regulator head is equipped with the annular groove, be equipped with O type sealing washer in the annular groove, be equipped with the valve rod above the regulator head, be equipped with adjusting element on the valve rod.
Further, the second spring has at least three coils, but may include other numbers of coils; for example, three, four or five springs, for example, are included, and in addition, the same number of coils as each other or a different number of coils from each other are included.
Further, the first spring has at least six coils, but may include other numbers of coils; for example, three, four or five springs, for example, are included, and in addition, the same number of coils as each other or a different number of coils from each other are included.
Further, the adjustment element includes a poppet valve for controlling fluid flow through the adjustment chamber.
Further, the regulator head, regulator head and first and second springs are integrally formed by additive manufacturing.
Further, the first and second springs are wound in opposite directions to each other.
Further, the first spring and the second spring are coil springs, and the helix angle of each coil spring is 30 degrees.
Compared with the prior art, the utility model the advantage lie in: a regulator head having a generally cylindrical shape is disposed within the regulator cavity, the regulator head being slidably and sealingly received in a valve housing and extending into the regulator cavity, the regulator head being provided with an O-ring seal in an external groove for sealing engagement with the valve housing; the present invention provides an easy to assemble and calibrate (adjust) vacuum regulator, the integral structure allowing its spring force to be accurately determined prior to assembly, and furthermore, the coil spring arrangement reduces the amount of lubricant required compared to structures using belleville washers, thereby reducing the effect of lubricant on valve operation; compared with the known multi-part structure, the product of the utility model can obviously reduce the cost of the valve, and is convenient for maintenance and assembly, etc.
Drawings
Fig. 1 is a schematic front view of a vacuum regulator according to the present invention.
Fig. 2 isbase:Sub>A schematic view ofbase:Sub>A cross-sectionbase:Sub>A-base:Sub>A ofbase:Sub>A vacuum regulator according to the present invention.
Fig. 3 is a schematic view of a valve element of a vacuum regulator according to the present invention.
As shown in the figure: 1. valve housing, 2, regulation chamber, 3, gas inlet, 4, gas outlet, 5, regulation head, 6, regulator head, 7, first external screw thread, 8, first internal screw thread, 9, second internal screw thread, 10, first spring, 11, second spring, 12, annular groove, 13, O type sealing washer, 14, valve rod, 15, adjusting element.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
With reference to figures 1, 2 and 3 of the drawings, a vacuum regulator comprises a valve housing 1, in which housing 1 a regulating chamber 2 is provided, which regulating chamber 2 has a gas inlet 3 and a gas outlet 4 for receiving and regulating gas, the outer side of the housing 1 being provided with a gas inlet 3 and a gas outlet 4 communicating with the regulating chamber 2, and being connected by suitable conduits to a system requiring the supply of regulating gas, the regulating chamber 2 in the housing 1 opening into an outlet chamber with a chamfered transition in a known regulator; a valve element is arranged in the adjusting cavity 2, the valve element comprises an adjusting head 5 and an adjusting head 6, the outer side of the adjusting head 5 is provided with a first external thread 7, the inner side of the adjusting head 5 is provided with a first internal thread 8, the valve housing 1 is provided with a second internal thread 9 in threaded connection with the first external thread 7, the adjusting head 5 is received in the end of the valve housing 1 and may have an external thread for threaded engagement with the second internal thread of the valve housing, the adjusting head 5 may further comprise a socket or other structure for receiving a complementary driver for rotating the valve rod into the adjusting cavity during assembly; the provision of a first spring 10 between the regulator head 5 and the regulator head 6, a second spring 11 within the first spring 10, and a plurality of springs is advantageous in that it allows the provision of a suitable spring force without the need for a single high rate spring which may be difficult to manufacture; the second spring 11 spring coils are arranged in the gaps between the turns of the first spring 10 spring coils, the first and second springs 10, 11 being coaxial with each other, facilitating the arrangement of the springs to provide the necessary spring force in a limited space, while at the same time using a simple spring design, being coaxial with each other in order to provide axially aligned spring forces; the regulator head 6 is provided with an annular groove 12, an O-ring 13 is provided in the annular groove 12, a valve stem 14 is provided on the regulator head 6, an adjusting element 15 is provided on the valve stem 14, the adjusting element 15 comprises an adjusting element 15 protruding from the valve stem 14, the outer diameter of the adjusting element being smaller than the inner diameter of the adjusting chamber 2, such that the poppet element is axially movable within the adjusting chamber, an arrangement which is known from prior art adjusting valves.
Further, the second spring 11 has at least three coils, but may include other number of coils; for example, three, four or five springs, for example, are included, and in addition, the same number of coils as each other or a different number of coils from each other are included.
Further, the first spring 10 has at least six coils, but may include other numbers of coils; for example, three, four or five springs, for example, are included, and in addition, the same number of coils as each other or a different number of coils from each other are included.
Further, the adjustment element 15 comprises a poppet valve for controlling the fluid flow through the adjustment chamber.
Further, the adjustment head and the first and second springs are integrally formed by additive manufacturing, the first and second springs being integrally formed with the adjustment head, the adjustment head so as to be a one-piece, unitary element, which is in contrast to the prior art, wherein the parts are formed as separate parts, in such a way that the adjustment valve is formed, facilitating assembly and calibration.
Further, the first and second springs are coiled in opposite directions to each other, in different directions from each other, which is advantageous in that it mitigates rotation of the regulator head and thus of the regulating element when the regulator head is axially displaced in the valve housing, and in addition it helps to provide rotational stiffness.
Further, the first spring and the second spring are coil springs, the helix angle of the coil springs is 30 degrees, and the helix angle can be relatively high, so that the requirement of additional support in an additive manufacturing process is avoided.
In a practical implementation of the invention, during use, high-pressure gas from the gas inlet will act in a known manner on the adjustment element, moving the valve rod to a position to the left against the first spring, during adjustment the adjustment element interacting in a known manner with the wall of the adjustment chamber to provide an adjustment flow channel for gas to the gas outlet, as the inlet pressure drops, the adjustment element will move to the right under the force of the first spring, the second spring, the interaction between the adjustment element and the wall of the adjustment chamber which adjusts the gas pressure in a known manner; as can be seen from the above description, the present invention provides a vacuum regulator that is easy to assemble and calibrate, the integral structure allowing its spring force to be accurately determined prior to assembly, and furthermore, the coil spring arrangement reduces the amount of lubricant required compared to a structure using belleville washers, thereby reducing the effect of lubricant on valve operation; the use of the product of the invention allows a significant reduction in the cost of the valve compared to known multi-piece constructions.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (7)
1. A vacuum regulator comprising a valve housing, wherein: be equipped with the regulation chamber in the valve casing, the valve casing lateral surface be equipped with gas inlet and the gas outlet who adjusts the chamber intercommunication, it is equipped with valve element to adjust the intracavity, valve element is including adjusting head and regulator head, it is equipped with first external screw thread to adjust the head lateral surface, it is equipped with first internal thread to adjust the first medial surface, be equipped with the second internal thread with first external screw thread threaded connection in the valve casing, be equipped with first spring between regulation head and the regulator head, be equipped with the second spring in the first spring, second spring coil arranges in the clearance between the circle of first spring coil, first spring and second spring are coaxial each other, regulator head is equipped with the annular groove, be equipped with O type sealing washer in the annular groove, be equipped with the valve rod above the regulator head, be equipped with adjusting element on the valve rod.
2. A vacuum regulator according to claim 1, wherein: the second spring has at least three coils.
3. A vacuum regulator according to claim 2, wherein: the first spring has at least six coils.
4. A vacuum regulator according to any one of claims 1-3, wherein: the adjustment element includes a poppet valve for controlling fluid flow through the adjustment chamber.
5. A vacuum regulator according to claim 4, wherein: the regulator head, and the first and second springs are integrally formed by additive manufacturing.
6. A vacuum regulator according to claim 5, wherein: the first and second springs are wound in opposite directions to each other.
7. A vacuum regulator according to claim 6, wherein: the first spring and the second spring are helical springs, and the helix angle of each helical spring is 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221702434.2U CN217815240U (en) | 2022-07-04 | 2022-07-04 | Vacuum regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221702434.2U CN217815240U (en) | 2022-07-04 | 2022-07-04 | Vacuum regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217815240U true CN217815240U (en) | 2022-11-15 |
Family
ID=83962985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221702434.2U Active CN217815240U (en) | 2022-07-04 | 2022-07-04 | Vacuum regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217815240U (en) |
-
2022
- 2022-07-04 CN CN202221702434.2U patent/CN217815240U/en active Active
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