CN220910572U - Pressure reducing valve structure based on accurate pressure regulation - Google Patents
Pressure reducing valve structure based on accurate pressure regulation Download PDFInfo
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- CN220910572U CN220910572U CN202322731269.4U CN202322731269U CN220910572U CN 220910572 U CN220910572 U CN 220910572U CN 202322731269 U CN202322731269 U CN 202322731269U CN 220910572 U CN220910572 U CN 220910572U
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- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 13
- 230000009471 action Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000005404 monopole Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a pressure reducing valve structure based on accurate pressure regulation, wherein a shell is respectively provided with an air inlet device and an air outlet pipe, an adjusting mechanism is arranged on the shell, a diaphragm support is arranged in a cavity of the shell and connected with the adjusting mechanism, a diaphragm is arranged on the diaphragm support, a lever is arranged in the cavity of the shell, and the bottom end of the adjusting mechanism penetrates through the diaphragm and then is connected with the lever. According to the scheme, the diaphragm moves downwards through rotating the adjusting mechanism, the diaphragm support and the lever move downwards, and the lever can rotate around the joint, so that the downward movement process is not blocked, the whole adjusting and action process can be realized, the multistage adjustment is realized, and the accurate pressure adjustment is realized; the depth change is realized by utilizing the rotation of the adjusting column, the outer wall of the adjusting column is provided with threads which are screwed in an opening at the top of the mounting cover, and the adjusting column is in the mounting cover to change the depth and drive the parts below the adjusting column to move so as to realize the adjusting process; a groove is formed at the top of the positioning sleeve, and the bottom end of the adjusting column is inserted into the groove to form positioning.
Description
Technical Field
The utility model relates to the technical field of pressure reducing valves, in particular to a pressure reducing valve structure based on accurate pressure regulation.
Background
The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by adjusting and automatically keeps the outlet pressure stable by depending on the energy of the medium. From the viewpoint of fluid mechanics, the pressure reducing valve is a throttling element with variable local resistance, namely, by changing the throttling area, the flow speed and the kinetic energy of fluid are changed, and different pressure losses are caused, so that the aim of reducing pressure is achieved. And then, by means of the adjustment of the control and adjustment system, the fluctuation of the valve back pressure is balanced with the spring force, so that the valve back pressure is kept constant within a certain error range.
In the existing pressure reducing valve, monopole control operation is adopted, so that other parts cannot act in time when the diaphragm deforms, and inaccurate adjustment occurs frequently during adjustment, so that the fluid pressure cannot reach the required value.
Disclosure of utility model
The utility model aims to overcome the problems in the background art and provide a pressure reducing valve structure for realizing accurate pressure regulation.
The aim of the utility model is mainly realized by the following technical scheme:
The pressure reducing valve structure based on realizing accurate pressure regulation comprises a shell with hollow inside, the lateral wall of shell is provided with air inlet unit and outlet duct respectively, and air inlet unit and outlet duct all communicate with the casing inner chamber, are provided with adjustment mechanism on the shell, are provided with the diaphragm support in the cavity of shell, and the diaphragm support is connected with adjustment mechanism, is provided with the diaphragm on the diaphragm support, and the diaphragm lateral wall is connected with the cavity wall, is provided with the lever in the cavity of shell, and the adjustment mechanism bottom passes behind the diaphragm and is connected with the lever, and the lever is connected with shells inner wall and can rotate round junction. In the process of adjusting an existing pressure reducing valve, due to the fact that monopole control operation is adopted, other components cannot act in time when a diaphragm deforms, inaccurate adjustment conditions occur frequently when adjustment is performed, fluid pressure cannot reach the required numerical value, in order to solve the problems, the pressure reducing valve structure based on accurate pressure adjustment is designed, an internal hollow shell is adopted as a main body structure, an air inlet device and an air outlet pipe are respectively arranged on the side wall of the shell, the air inlet device and the air outlet pipe are communicated with an inner cavity of the shell, air inlet and air outlet requirements are respectively met through the air inlet device and the air outlet pipe, in order to achieve multistage adjustment, an adjusting mechanism is arranged on the shell, a diaphragm support is arranged in a cavity of the shell and connected with the adjusting mechanism, a diaphragm is arranged on the diaphragm support, the side wall of the diaphragm is connected with a cavity wall surface, a lever is arranged in the cavity of the shell, the bottom end of the adjusting mechanism penetrates through the diaphragm and is connected with the lever, and the lever is connected with the inner wall of the shell and can rotate around a connecting position. Through rotating adjustment mechanism for the diaphragm moves down, moves diaphragm support and lever downwards, because the lever can rotate round the junction, its process of moving down does not have the barrier, and whole regulation and action process just can be realized, realizes multistage regulation, realizes the accurate regulation of pressure.
Further, the air inlet device comprises a filter, the filter is communicated with the inner cavity of the shell through a pipeline, and an air inlet joint is arranged on the side wall of the filter. In order to prevent the impurity in the gas, a filter is provided to filter the impurity to prevent the pressure reducing valve from being blocked.
Further, adjustment mechanism includes inside cavity and both ends open-ended installation cover, and the installation cover is fixed on the casing, is provided with the regulation post in the cavity of installation cover, and the top opening of installation cover is inserted on the top of regulation post, and the outer wall cover of regulation post has the spring, and the spring is located the installation cover. The depth change is realized by utilizing the rotation of the adjusting column, the outer wall of the adjusting column is provided with threads, the threads are screwed in the opening at the top of the mounting cover, the self-locking is formed, when the adjusting column is rotated, the self-locking still exists, the depth change of the adjusting column in the mounting cover drives the lower part of the adjusting column to move, and the adjusting process is realized.
Further, be provided with the spacer bush in the installation cover, adjust post bottom and spacer bush and be connected, the spacer bush passes casing and diaphragm leg joint, is provided with the relief valve in the spacer bush, and the relief valve is connected with the diaphragm, and the relief valve bottom is connected with the pull rod, and pull rod and lever connection. The locating sleeve top forms a recess, forms the location in adjusting post bottom insertion recess, and when rotating the adjusting post, the degree of depth of adjusting the post changes, moves down along the locating sleeve, because the screw thread effect, the adjusting post realizes the auto-lock, can not become flexible.
Further, the top end of the spring is contacted with the top of the inner cavity of the mounting cover, and the bottom end of the spring is contacted with the top of the positioning sleeve. Through this kind of structure, realize carrying out spacing and location with the spring both ends to the spring is along same orbit when compressing and stretching, can not cause the skew, has guaranteed to adjust the accuracy nature.
In conclusion, compared with the prior art, the utility model has the following beneficial effects:
(1) According to the scheme, the diaphragm moves downwards through the rotation adjusting mechanism, the diaphragm support and the lever move downwards, the lever can rotate around the connecting part, the downward moving process is not blocked, the whole adjusting and action process can be realized, the multistage adjustment is realized, and the accurate pressure adjustment is realized.
(2) The rotation of this scheme utilization regulation post realizes the degree of depth and changes, adjusts the post outer wall and has the screw thread, and its spin closes in the opening at installation cover top, forms the auto-lock, and when rotating the regulation post, the auto-lock still exists, and adjusts the post and change of degree of depth in the installation cover, drives its below part and removes, realizes the adjustment process.
(3) According to the scheme, the groove is formed at the top of the positioning sleeve, the bottom end of the adjusting column is inserted into the groove to form positioning, when the adjusting column is rotated, the depth of the adjusting column is changed, the adjusting column moves downwards against the positioning sleeve, and self-locking is achieved by the adjusting column due to the action of threads, so that the adjusting column cannot loosen.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a C-direction cross-sectional view of the present utility model.
The names corresponding to the reference numerals in the drawings are:
1-shell, 2-lever, 3-diaphragm, 4-spring, 5-mounting cover, 6-adjusting column, 7-locating sleeve, 8-pull rod, 9-diaphragm support, 10-air inlet connector, 11-filter.
Description of the embodiments
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be described in further detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are only for explaining the present utility model and are not limiting the present utility model.
As shown in fig. 1 and 2, this embodiment adopts inside hollow casing 1 as main structure to be provided with air inlet unit and outlet duct respectively at casing 1's lateral wall, and air inlet unit and outlet duct all communicate with casing 1 inner chamber, realize the demand of admitting air and giving vent to anger respectively through air inlet unit and outlet duct, in order to prevent to have impurity in the gas of entering, so set up filter 11, air inlet unit includes filter 11, filter 11 communicates through pipeline and casing inner chamber, filter 11 lateral wall is provided with air inlet connector 10, filters impurity through filter 11, prevent to block up the relief pressure valve inside.
In order to realize multistage regulation, be provided with adjustment mechanism on casing 1, be provided with diaphragm support 9 in the cavity of casing 1, diaphragm support 9 is connected with adjustment mechanism, is provided with diaphragm 3 on diaphragm support 9, and diaphragm 3 lateral wall is connected with the cavity wall, is provided with lever 2 in the cavity of casing 1, and adjustment mechanism bottom passes diaphragm 3 and is connected with lever 2, and lever 2 is connected with casing 1 inner wall and can rotate round the junction. According to the scheme, the diaphragm 3 moves downwards through rotating the adjusting mechanism, the diaphragm support 9 is connected with the diaphragm 3, so that the diaphragm 3 moves to drive the diaphragm support 9 to move, the lever 2 is connected with the adjusting mechanism, the diaphragm 3 moves downwards after the adjusting mechanism rotates, the diaphragm support 9 and the lever 2 are driven to move downwards, the lever 2 can rotate around the connecting part, the downward moving process is not blocked, the whole adjusting and moving process is smooth, the clamping cannot occur during long-term use, the end part of the lever 2 is connected with the diaphragm support 9, the end part of the lever 2 is driven to move downwards, the multi-stage adjustment is realized, and the accurate pressure adjustment is realized.
The adjusting mechanism comprises an installation cover 5 with a hollow inside and two open ends, the installation cover 5 is fixed on the shell 1, an adjusting column 6 is arranged in a cavity of the installation cover 5, the top end of the adjusting column 6 is inserted into the top opening of the installation cover 5, a spring 4 is sleeved on the outer wall of the adjusting column 6, and the spring 4 is positioned in the installation cover 5. The installation cover 5 is provided with a positioning sleeve 7, the bottom of the adjusting column 6 is connected with the positioning sleeve 7, the positioning sleeve 7 penetrates through the shell 1 and is connected with the diaphragm support 9, the positioning sleeve 7 is provided with a safety valve, the safety valve is connected with the diaphragm 3, the bottom of the safety valve is connected with a pull rod 8, and the pull rod 8 is connected with the lever 2. The depth change is realized by utilizing the rotation of the adjusting column 6, the outer wall of the adjusting column 6 is provided with threads, the threads are screwed in the opening at the top of the mounting cover 5 to form self-locking, when the adjusting column 6 is rotated, the self-locking still exists, the depth of the adjusting column 6 in the mounting cover 5 is changed, the lower part of the adjusting column is driven to move, and the adjusting process is realized. A groove is formed at the top of the positioning sleeve 7, the bottom end of the adjusting column 6 is inserted into the groove to form positioning, when the adjusting column 6 is rotated, the depth of the adjusting column 6 is changed, the adjusting column 6 moves downwards against the positioning sleeve 7, self-locking is realized by the adjusting column 6 due to the action of threads, the adjusting column 6 cannot loosen, and the adjusting column 6 can rotate and also can vertically move. In order to realize stable action during adjustment, the spring 4 is arranged, the top end of the spring 4 is contacted with the top of the inner cavity of the mounting cover 5, and the bottom end is contacted with the top of the positioning sleeve 7. Through this kind of structure, realize carrying out spacing and location with spring 4 both ends to spring 4 all is along same orbit when compressing and stretching, can not cause the skew, has guaranteed the regulation accuracy nature.
The foregoing detailed description of the utility model has been presented for purposes of illustration and description, and it should be understood that the utility model is not limited to the particular embodiments disclosed, but is intended to cover all modifications, equivalents, alternatives, and improvements within the spirit and principles of the utility model.
Claims (5)
1. Pressure reducing valve structure based on realize accurate regulation of pressure, its characterized in that: including inside hollow casing (1), the lateral wall of casing (1) is provided with air inlet unit and outlet duct respectively, and air inlet unit and outlet duct all communicate with casing (1) inner chamber, be provided with adjustment mechanism on casing (1), be provided with diaphragm support (9) in the cavity of casing (1), diaphragm support (9) are connected with adjustment mechanism, be provided with diaphragm (3) on diaphragm support (9), and diaphragm (3) lateral wall is connected with the cavity wall, be provided with lever (2) in the cavity of casing (1), be connected with lever (2) after diaphragm (3) are passed to the adjustment mechanism bottom, lever (2) are connected with casing (1) inner wall and can rotate round the junction.
2. The pressure reducing valve structure based on accurate pressure adjustment according to claim 1, wherein: the air inlet device comprises a filter (11), the filter (11) is communicated with the inner cavity of the shell through a pipeline, and an air inlet joint (10) is arranged on the side wall of the filter (11).
3. The pressure reducing valve structure based on accurate pressure adjustment according to claim 1, wherein: the adjusting mechanism comprises an installation cover (5) with a hollow inside and two open ends, the installation cover (5) is fixed on the shell (1), an adjusting column (6) is arranged in a cavity of the installation cover (5), the top end of the adjusting column (6) is inserted into the top opening of the installation cover (5), a spring (4) is sleeved on the outer wall of the adjusting column (6), and the spring (4) is located in the installation cover (5).
4. The pressure reducing valve structure based on accurate pressure adjustment according to claim 3, wherein: be provided with positioning sleeve (7) in installing cover (5), adjusting column (6) bottom and positioning sleeve (7) are connected, and positioning sleeve (7) pass casing (1) and diaphragm support (9) and are connected, are provided with the relief valve in positioning sleeve (7), and the relief valve is connected with diaphragm (3), and the relief valve bottom is connected with pull rod (8), and pull rod (8) are connected with lever (2).
5. The pressure reducing valve structure based on accurate pressure regulation according to claim 4, wherein: the top end of the spring (4) is contacted with the top of the inner cavity of the mounting cover (5), and the bottom end is contacted with the top of the positioning sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322731269.4U CN220910572U (en) | 2023-10-12 | 2023-10-12 | Pressure reducing valve structure based on accurate pressure regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322731269.4U CN220910572U (en) | 2023-10-12 | 2023-10-12 | Pressure reducing valve structure based on accurate pressure regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220910572U true CN220910572U (en) | 2024-05-07 |
Family
ID=90915746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322731269.4U Active CN220910572U (en) | 2023-10-12 | 2023-10-12 | Pressure reducing valve structure based on accurate pressure regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220910572U (en) |
-
2023
- 2023-10-12 CN CN202322731269.4U patent/CN220910572U/en active Active
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