CN216242515U - Diaphragm type check valve - Google Patents
Diaphragm type check valve Download PDFInfo
- Publication number
- CN216242515U CN216242515U CN202121609696.XU CN202121609696U CN216242515U CN 216242515 U CN216242515 U CN 216242515U CN 202121609696 U CN202121609696 U CN 202121609696U CN 216242515 U CN216242515 U CN 216242515U
- Authority
- CN
- China
- Prior art keywords
- valve
- diaphragm
- check valve
- valve seat
- rubber
- 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
- Details Of Valves (AREA)
- Check Valves (AREA)
Abstract
The utility model relates to a check valve, in particular to a diaphragm type check valve. The utility model provides a diaphragm formula check valve, includes valve body, valve gap, diaphragm, be equipped with the disk seat between valve body and the valve gap, the outer fringe of disk seat is equipped with disk seat fixed bulge, the middle part right side of disk seat is equipped with the direction valve rod, the right-hand member of direction valve rod is equipped with the dog, the direction valve rod transversely runs through the middle part of diaphragm and is connected with the dog, be equipped with reset spring between dog and the diaphragm. Compared with the prior art, the check valve adopts the valve seat with the flow guide structure, so that a medium is guided when passing through the check valve, and the flow resistance is reduced. Meanwhile, the diaphragm type structure of the rubber replaces the valve clack of a traditional check valve metal structure, and the problem that the valve clack vibrates along with the medium in the medium flow passing process to generate noise is avoided due to the soft characteristic of the rubber structure of the diaphragm type structure, and the problem that the valve clack generates noise due to impact in the opening and closing processes is avoided.
Description
Technical Field
The utility model relates to a check valve, in particular to a diaphragm type check valve.
Background
The check valve is a part for pipeline transportation, and has the function of preventing medium in the pipeline from flowing back and preventing water hammer caused by pressure change in the pipeline.
At present, the common check valves include swing check valves, lift check valves, butterfly check valves, etc. However, the check valve generally has certain disadvantages and shortcomings in the working process, for example, the valve plate can vibrate during the transmission process of a medium during the working process of the check valve, so that high noise is generated. And the flow resistance of part of the valves is larger, so that larger energy loss is caused in the medium transportation process.
Therefore, it is imperative to design a check valve that can simultaneously address these problems.
Disclosure of Invention
In order to solve the technical problem, an embodiment of the utility model provides a diaphragm type check valve, which comprises a valve body, a valve cover and a diaphragm, wherein a valve seat is arranged between the valve body and the valve cover, a valve seat fixing protrusion is arranged at the outer edge of the valve seat, a guide valve rod is arranged on the right side of the middle part of the valve seat, a stop block is arranged at the right end of the guide valve rod, the guide valve rod transversely penetrates through the middle part of the diaphragm to be connected with the stop block, a reset spring is arranged between the stop block and the diaphragm, the diaphragm comprises a central sliding block and a rubber diaphragm, the middle part of the diaphragm is a central sliding block, the outer edge of the central sliding block is provided with the rubber diaphragm, the rubber diaphragm is connected with the valve seat fixing protrusion, a groove is arranged between the valve body and the valve cover, and the structure of the groove is matched with a combined connection structure of the rubber diaphragm and the valve seat fixing protrusion.
Furthermore, the diaphragm is made of rubber and cast iron.
Furthermore, the valve seat is of an umbrella-shaped structure, a plurality of supporting rib plates are arranged between the valve seat and the valve seat fixing bulge, and flow guide openings are formed between the supporting rib plates.
Further, the valve body is connected with the valve cover through a bolt, and a gasket is arranged between the bolt and the valve cover.
Furthermore, the bolt and the gasket are made of stainless steel.
Further, the valve body and the valve cover are made of cast iron, the valve seat is made of cast iron, the return spring is made of stainless steel, and the stop block is made of copper.
Compared with the prior art, the check valve adopts the valve seat with the flow guide structure, so that a medium is guided when passing through the check valve, thereby reducing the flow resistance, reducing the energy loss in the medium transmission process and reducing the energy consumption. Meanwhile, the diaphragm type structure of the rubber replaces the valve clack of a traditional check valve metal structure, and the problem that the valve clack vibrates along with the medium in the medium flow passing process to generate noise is avoided due to the soft characteristic of the rubber structure of the diaphragm type structure, and the problem that the valve clack generates noise due to impact in the opening and closing processes is avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the diaphragm check valve of the present invention.
Fig. 2 is a schematic view of the structure of the valve seat of the diaphragm check valve of the present invention.
FIG. 3 is a schematic diagram of the diaphragm check valve of the present invention.
Fig. 4 is a schematic view of the valve opening state of the diaphragm check valve of the present invention.
FIG. 5 is a schematic view of the valve closed state of the diaphragm check valve of the present invention.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
Referring to fig. 1, 2, 3, 4 and 5, the utility model is a diaphragm type check valve, comprising a valve body 1, a valve cover 2 and a diaphragm 5, a valve seat 3 is arranged between the valve body 1 and the valve cover 2, a valve seat fixing bulge 4 is arranged on the outer edge of the valve seat 3, a guide valve rod 6 is arranged on the right side of the middle part of the valve seat 3, a stop block 7 is arranged at the right end of the guide valve rod 6, the guide valve rod 6 transversely penetrates through the middle part of the diaphragm 5 and is connected with a stop dog 7, a return spring 8 is arranged between the stop dog 7 and the diaphragm 5, the diaphragm 5 comprises a central slide block 14 and a rubber diaphragm 9, the central slide block 14 is arranged in the middle of the diaphragm 5, the rubber diaphragm 9 is arranged on the outer edge of the central slide block 14, the rubber diaphragm 9 is connected with the valve seat fixing bulge 4, a groove is arranged between the valve body 1 and the valve cover 2, the structure of the groove is matched with the combined connecting structure of the rubber diaphragm 9 and the valve seat fixing bulge 4.
Wherein, the diaphragm 5 is made of rubber and cast iron. The valve seat 3 is of an umbrella-shaped structure, a plurality of supporting rib plates 10 are arranged between the valve seat 3 and the valve seat fixing bulge 4, and flow guide openings 11 are arranged between the supporting rib plates 10. The valve body 1 is connected with the valve cover 2 through a bolt 12, and a gasket 13 is arranged between the bolt 12 and the valve cover 2. The bolt 12 and the gasket 13 are made of stainless steel. The valve body 1 and the valve cover 2 are made of cast iron, the valve seat 3 is made of cast iron, the return spring 8 is made of stainless steel, and the stop block 7 is made of copper.
Example (b): the structure of the utility model is shown in attached figures 1, 2, 3, 4 and 5.
Firstly, the utility model comprises a valve body 1 and a valve cover 2, a valve seat 3 is arranged between the valve body 1 and the valve cover 2, two ends of the valve seat 3 are provided with valve seat fixing bulges 4, a guide valve rod 6 is arranged on the right side of the middle part of the valve seat 3, a stop block 7 is arranged at the right end of the guide valve rod 6, the guide valve rod 6 transversely penetrates through the middle part of the diaphragm 5 and is connected with a stop dog 7, a return spring 8 is arranged between the stop dog 7 and the diaphragm 5, the diaphragm 5 comprises a central slide block 14 and a rubber diaphragm 9, the central slide block 14 is arranged in the middle of the diaphragm 5, the rubber diaphragm 9 is arranged on the outer edge of the central slide block 14, the rubber diaphragm 9 is connected with the valve seat fixing bulge 4, a groove is arranged between the valve body 1 and the valve cover 2, the structure of the groove is matched with the combined connecting structure of the rubber diaphragm 9 and the valve seat fixing bulge 4, so that the rubber diaphragm 9 and the valve seat fixing bulge 4 are fixed together by the mutual connection of the valve body 1 and the valve cover 2.
Wherein, the material that rubber diaphragm 9 adopted is rubber, makes rubber diaphragm 9 can take place deformation under the pressure of difference, and the soft characteristic of rubber structure can avoid medium circulation in-process diaphragm 5 to produce the problem of vibration noise along with the medium, and has avoided diaphragm 5 opening and the noise problem that the in-process produced because of the striking of closing.
The valve seat 3 is of an umbrella-shaped structure and has a flow guiding function. The valve seat 3 is provided with a plurality of flow guide openings 11, so that liquid can conveniently flow through the flow guide openings.
The valve body 1 is connected with the valve cover 2 through a bolt 12, and a gasket 13 is arranged between the bolt 12 and the valve cover 2. The bolt 12 and the gasket 13 are made of stainless steel. The valve body 1 and the valve cover 2 are made of cast iron, the valve seat 3 is made of cast iron, the return spring 8 is made of stainless steel, and the stop block 7 is made of copper.
In the open state of the valve, as shown in fig. 2, the left side is a water inlet and the right side is a water outlet. Fluid medium enters the cavity of the valve body 1 from the water inlet at a certain speed, and the pressure of the medium acts on the diaphragm 5 and the rubber diaphragm 9 to push the diaphragm 5 to move and open. Due to the flow guiding effect of the valve seat 3, the medium can stably pass through the valve body 1 when flowing through.
In the valve closing state, as shown in fig. 3, when the pressure of the water inlet is reduced or the pressure of the water outlet is increased, the diaphragm 5 and the rubber diaphragm 9 are reset under the combined action of the medium pressure and the elastic force of the return spring 8, and the rubber diaphragm 9 and the valve seat 3 are sealed under the action of the medium pressure and the elastic force of the return spring 8, so that medium backflow and water hammer are prevented.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (6)
1. The utility model provides a diaphragm formula check valve, includes valve body (1), valve gap (2), diaphragm (5), its characterized in that: a valve seat (3) is arranged between the valve body (1) and the valve cover (2), a valve seat fixing bulge (4) is arranged on the outer edge of the valve seat (3), a guide valve rod (6) is arranged on the right side of the middle part of the valve seat (3), a stop block (7) is arranged at the right end of the guide valve rod (6), the guide valve rod (6) transversely penetrates through the middle part of the membrane (5) and is connected with the stop block (7), a return spring (8) is arranged between the stop block (7) and the diaphragm (5), the diaphragm (5) comprises a central sliding block (14) and a rubber diaphragm (9), the middle part of the diaphragm (5) is provided with a central sliding block (14), the outer edge of the central sliding block (14) is provided with a rubber diaphragm (9), the rubber diaphragm (9) is connected with the valve seat fixing bulge (4), a groove is arranged between the valve body (1) and the valve cover (2), the structure of the groove is matched with the combined connecting structure of the rubber diaphragm (9) and the valve seat fixing bulge (4).
2. The diaphragm check valve of claim 1, wherein: the diaphragm (5) is made of rubber and cast iron.
3. The diaphragm check valve of claim 1, wherein: the valve seat (3) is of an umbrella-shaped structure, a plurality of supporting rib plates (10) are arranged between the valve seat (3) and the valve seat fixing bulges (4), and flow guide openings (11) are arranged between the supporting rib plates (10).
4. The diaphragm check valve of claim 1, wherein: the valve body (1) is connected with the valve cover (2) through a bolt (12), and a gasket (13) is arranged between the bolt (12) and the valve cover (2).
5. The diaphragm check valve of claim 4, wherein: the bolt (12) and the gasket (13) are made of stainless steel.
6. The diaphragm check valve of claim 1, wherein: the valve body (1) and the valve cover (2) are made of cast iron, the valve seat (3) is made of cast iron, the reset spring (8) is made of stainless steel, and the stop block (7) is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121609696.XU CN216242515U (en) | 2021-07-15 | 2021-07-15 | Diaphragm type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121609696.XU CN216242515U (en) | 2021-07-15 | 2021-07-15 | Diaphragm type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216242515U true CN216242515U (en) | 2022-04-08 |
Family
ID=80980842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121609696.XU Active CN216242515U (en) | 2021-07-15 | 2021-07-15 | Diaphragm type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216242515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115615760A (en) * | 2022-11-01 | 2023-01-17 | 嘉兴勒琪医疗科技有限公司 | A quantitative medical valve and its quantitative control method |
-
2021
- 2021-07-15 CN CN202121609696.XU patent/CN216242515U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115615760A (en) * | 2022-11-01 | 2023-01-17 | 嘉兴勒琪医疗科技有限公司 | A quantitative medical valve and its quantitative control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9506576B2 (en) | Check valve apparatuses and methods | |
| CN202946833U (en) | Water hammer device | |
| CN208750077U (en) | A kind of swing check valve | |
| CN209229074U (en) | A kind of one-way valve structures | |
| CN100353103C (en) | Full flow buffer check valve | |
| CN214222104U (en) | Axial flow type check valve with slowly-closed adjustable function | |
| CN216279922U (en) | Door valve tap is with convenient to detach's check valve | |
| CN210069048U (en) | Double check valve backflow preventer | |
| CN216306830U (en) | Check valve capable of silencing | |
| CN216242501U (en) | Lifting type silencing check valve | |
| CN207421408U (en) | A Double Disc Noise Reduction Check Valve | |
| CN210196565U (en) | Check valve | |
| CN211715855U (en) | Improved back pressure overflow valve for high-pressure corrosive liquid | |
| CN205401843U (en) | Swing check valve | |
| CN210484700U (en) | Ball sealing check valve | |
| CN224245547U (en) | Durable check valve | |
| CN119642075B (en) | A high pressure difference and large flow steam trap | |
| CN223257558U (en) | Check loose joint gate valve | |
| CN112032366A (en) | A high-speed one-way valve assembly for a water jet loom | |
| KR102604551B1 (en) | Device to prevent corrosion of elastic member in check valve | |
| CN211145471U (en) | Quick opening and closing silent check valve for boiler | |
| CN214119048U (en) | Groove type rubber flap check valve | |
| CN216306813U (en) | Check valve structure | |
| CN218625492U (en) | Three-way ball valve | |
| CN111207220A (en) | Check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: WEGS (SHANGHAI) FLUID TECHNOLOGY Co.,Ltd. Assignor: SHANGHAI BIAOYI VALVE Co.,Ltd. Contract record no.: X2024980014925 Denomination of utility model: A diaphragm check valve Granted publication date: 20220408 License type: Common License Record date: 20240913 |
|
| EE01 | Entry into force of recordation of patent licensing contract |