CN218913843U - High-precision check valve - Google Patents
High-precision check valve Download PDFInfo
- Publication number
- CN218913843U CN218913843U CN202223289954.8U CN202223289954U CN218913843U CN 218913843 U CN218913843 U CN 218913843U CN 202223289954 U CN202223289954 U CN 202223289954U CN 218913843 U CN218913843 U CN 218913843U
- Authority
- CN
- China
- Prior art keywords
- elastic plug
- plug
- sealing
- check valve
- valve
- 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
- Check Valves (AREA)
Abstract
The utility model relates to a high-precision check valve, which comprises a valve body, an elastic plug and a fixed valve seat, wherein the valve body is provided with a containing cavity and an air outlet channel communicated with the containing cavity, the elastic plug is arranged in the valve body, the fixed valve seat is sleeved with the bottom of the valve body, the elastic plug comprises a positioning ring, a sealing plug and a bridging body for connecting the positioning ring and the sealing plug, the bridging body is in an annular array, the elastic plug is positioned in the center of the positioning ring, one side of the elastic plug, which is close to the air outlet channel, is provided with a plurality of protruding points, and one side of the elastic plug, which is close to the fixed valve seat, is provided with a sealing cambered surface. According to the utility model, the check valve is formed by sleeving the valve body, the elastic plug and the fixed valve seat, the sealing plug, the bridging body and the positioning ring form an integral structure, and the bridging body is driven to move together when the sealing plug moves, so that the integral structure has good stability and a better check effect.
Description
Technical Field
The utility model relates to the field of valve bodies, in particular to a high-precision check valve.
Background
The check valve is a valve with a circular valve clack as an opening and closing part and can stop the medium from flowing backwards by the action of the self weight and the medium pressure. The valve blocking block of the check valve is generally made of rubber materials, and the rubber materials are easy to deform when being pressed in the forward direction to open the valve for transmission, and the larger the pressure is in the reverse direction, the larger the rubber deformation is, so that the sealing effect on the channel is better, and the purpose of unidirectional transmission is achieved. However, the existing check valve has problems generally, and when the valve blocking block is pressed in the forward direction, if the pressure is too large, the valve blocking block is sometimes excessively deformed to block an output channel, so that the flow is completely stopped. In addition, the valve blocking block needs frequent deformation, is easy to fatigue damage and is inconvenient to replace, so that a valve blocking block which can resist fatigue, has long service life and is convenient to replace and a check valve formed by the valve blocking block are needed.
Disclosure of Invention
In order to solve the problems, the utility model adopts the following technical scheme: the utility model provides a high-precision check valve, includes valve body, elastic plug and fixed disk seat, the valve body is provided with the passageway of giving vent to anger that holds the chamber and the intercommunication holds the chamber, the elastic plug sets up in the valve body, fixed disk seat cup joints with the valve body bottom, the elastic plug includes holding ring, sealing plug and connects the bridging body of both, the bridging body is annular array, the elastic plug is located the holding ring center, elastic plug is provided with a plurality of bumps near passageway one side of giving vent to anger, elastic plug is provided with sealed cambered surface near fixed disk seat one side.
The air flow enters through the fixed valve seat, the elastic plug is propped against the fixed valve seat in a normal state, the air flow impacts the elastic plug, the bridging body deforms, the elastic plug leaves the fixed valve seat, and the air flow enters the accommodating cavity and is discharged through the air outlet channel. The bridging body is annular array, the elastic plug is located the impact force of balanced air current that the holding ring center can be better, and wall local deformation even meet the too big air current of impact force in the design of a plurality of bumps of elastic plug one side, the bump can play the supporting role between elastic plug and holding the chamber bottom, and wall elastic plug directly blocks up the passageway of giving vent to anger.
Preferably, the bridge body is an arc body protruding to one side of the fixed valve seat.
The bridge body protrudes towards one side of the fixed valve seat, so that the bridge body is not easy to deform towards one side of the air outlet channel, the air pressure can be better borne, the amplitude of elastic deformation is reduced, the fixed valve seat can be better sealed in a normal state, the fatigue damage of the bridge body is effectively reduced, and the service life is prolonged.
Preferably, the fixed valve seat is provided with an air inlet channel, the air inlet channel corresponds to the sealing plug in position, and the air inlet channel is provided with a sealing inclined surface corresponding to the sealing cambered surface.
The air inlet channel is provided with the sealing inclined surface to be matched with the sealing cambered surface of the sealing plug, so that a linear surface sealing structure can be effectively formed, and the sealing effect is better.
Preferably, the fixed valve seat is provided with a sleeving part, and the sleeving part is matched and sleeved with the accommodating cavity.
Preferably, the outer side surface of the positioning ring is matched with the wall surface of the accommodating cavity.
The elastic plug is installed in a sleeved mode of the locating ring space accommodating cavity, and the elastic plug is convenient to replace.
Preferably, the bottom of the accommodating cavity is provided with a limiting plane, and the top of the positioning ring is provided with a positioning plane matched with the limiting plane.
The beneficial effects of the utility model are as follows:
according to the utility model, the check valve is formed by sleeving the valve body, the elastic plug and the fixed valve seat, the sealing plug, the bridging body and the positioning ring form an integral structure, and the bridging body is driven to move together when the sealing plug moves, so that the integral structure has good stability and a better check effect. The bridging body is annular array, the elastic plug is located the impact force of balanced air current that the holding ring center can be better, and wall local deformation even meet the too big air current of impact force in the design of a plurality of bumps of elastic plug one side, the bump can play the supporting role between elastic plug and holding the chamber bottom, and wall elastic plug directly blocks up the passageway of giving vent to anger.
Drawings
The utility model is further illustrated by the accompanying drawings, which are not to be construed as limiting the utility model in any way.
Fig. 1 is a schematic diagram of an assembly structure of the present utility model.
Fig. 2 is a schematic diagram of an explosive structure according to the present utility model.
Fig. 3 is a schematic view of the external structure of the valve body of the present utility model.
Fig. 4 is a schematic view of the internal structure of the valve body of the present utility model.
Fig. 5 is a schematic view of the structure of the elastic plug of the present utility model.
FIG. 6 is a schematic view of another view of the elastic plug of the present utility model.
Fig. 7 is a schematic cross-sectional structure of the present utility model.
Detailed Description
As shown in fig. 1-7, the high-precision check valve provided by an embodiment of the utility model comprises a valve body 1, an elastic plug 2 and a fixed valve seat 3, wherein the valve body 1 is provided with an accommodating cavity 4 and an air outlet channel 5 communicated with the accommodating cavity 4, the elastic plug 2 is arranged in the valve body 1, the fixed valve seat 3 is sleeved with the bottom of the valve body 1, the elastic plug 2 comprises a positioning ring 6, a sealing plug 7 and a bridging body 8 for connecting the positioning ring and the sealing plug 7, the bridging body 8 is in an annular array, the elastic plug 7 is positioned in the center of the positioning ring 6, a plurality of protruding points 9 are arranged on one side, close to the air outlet channel 5, of the elastic plug 2, and a sealing cambered surface 10 is arranged on one side, close to the fixed valve seat 3, of the elastic plug 2.
The bridge body 8 is an arc body protruding to one side of the fixed valve seat 3.
The fixed valve seat 3 is provided with an air inlet channel 11, the air inlet channel 11 corresponds to the sealing plug 7 in position, and the air inlet channel 11 is provided with a sealing inclined surface 12 corresponding to the sealing cambered surface 10.
The fixed valve seat 3 is provided with a sleeving part 13, and the sleeving part 13 is matched and sleeved with the accommodating cavity 4.
The outer side surface of the positioning ring 6 is matched with the wall surface of the accommodating cavity 4.
The bottom of the accommodating cavity 4 is provided with a limiting plane 14, and the top of the positioning ring 6 is provided with a positioning plane 15 matched with the limiting plane 14.
The arrangement of the limiting plane 14 and the positioning plane 15 ensures the accurate installation of the elastic plug 2 and ensures the sealing effect of the sealing plug 7 on the fixed valve block 3.
Working principle:
the air flow enters from the air inlet channel 11 of the fixed valve seat 3, the sealing cambered surface 10 of the sealing plug 7 contacts with the sealing inclined surface 12 of the air inlet channel 11 in a normal state to form linear surface sealing, and after the air flow impacts the sealing plug 7, the sealing plug 7 is jacked up to drive the bridging body 8 to deform, and the air flow enters the accommodating cavity 4 and is discharged from the air outlet channel 5.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (6)
1. A high-precision check valve, characterized in that: including valve body, elastic plug and fixed disk seat, the valve body is provided with the passageway of giving vent to anger that holds the chamber and the intercommunication holds the chamber, the elastic plug sets up in the valve body, fixed disk seat cup joints with the valve body bottom, the elastic plug includes holding ring, sealing plug and connects the bridging body of both, the bridging body is annular array, the elastic plug is located the holding ring center, elastic plug is close to passageway one side and is provided with a plurality of bumps, elastic plug is close to fixed disk seat one side and is provided with sealed cambered surface.
2. The high-precision check valve according to claim 1, wherein: the bridging body is an arc body protruding to one side of the fixed valve seat.
3. The high-precision check valve according to claim 1, wherein: the fixed valve seat is provided with an air inlet channel, the air inlet channel corresponds to the sealing plug in position, and the air inlet channel is provided with a sealing inclined surface corresponding to the sealing cambered surface.
4. A high-precision check valve according to claim 3, wherein: the fixed valve seat is provided with a sleeving part, and the sleeving part is matched and sleeved with the containing cavity.
5. The high-precision check valve according to claim 1, wherein: the outer side surface of the positioning ring is matched with the wall surface of the accommodating cavity.
6. The high-precision check valve according to claim 5, wherein: the bottom of the accommodating cavity is provided with a limiting plane, and the top of the positioning ring is provided with a positioning plane matched with the limiting plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223289954.8U CN218913843U (en) | 2022-12-08 | 2022-12-08 | High-precision check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223289954.8U CN218913843U (en) | 2022-12-08 | 2022-12-08 | High-precision check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218913843U true CN218913843U (en) | 2023-04-25 |
Family
ID=86038258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223289954.8U Active CN218913843U (en) | 2022-12-08 | 2022-12-08 | High-precision check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218913843U (en) |
-
2022
- 2022-12-08 CN CN202223289954.8U patent/CN218913843U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20240337322A1 (en) | Stop valve | |
| CN218913843U (en) | High-precision check valve | |
| CN212564695U (en) | Waterproof hammer buffering angle valve | |
| CN211039697U (en) | Pneumatic angle seat valve | |
| CN218670773U (en) | Sectional type large-flow vertical check valve | |
| CN208010963U (en) | A kind of hard seal ball valve | |
| CN205504053U (en) | Sealed valve holder structure of elasticity of fixed ball valve | |
| CN211667206U (en) | Check valve with elastic jacking device | |
| CN210461726U (en) | Center line butterfly valve plate assembly and center line butterfly valve | |
| CN218818412U (en) | Prevent novel discharge valve of high gas tightness of excessive pressure impact | |
| CN220956968U (en) | One-way valve | |
| CN201382193Y (en) | Valve seat for ball valve and ball valve using same | |
| CN220354559U (en) | Novel check valve for water supply of high-rise building | |
| CN111058528A (en) | Negative pressure type dredging device for blocked pipeline | |
| CN210978585U (en) | Double-body type fixed ball valve | |
| CN220850866U (en) | Built-in water pressure buffering check valve | |
| CN213145475U (en) | Valve clack structure of leakage-proof check valve and leakage-proof check valve | |
| CN213393692U (en) | Anti-drop self-sealing valve | |
| CN221897141U (en) | Water drain valve, valve clack assembly thereof and water hammer pump | |
| CN211288872U (en) | Double-flow-passage large-discharge-capacity one-way valve | |
| CN205479466U (en) | Unsteady ball valve seating structure | |
| CN221547859U (en) | Integrated one-way valve structure suitable for negative pressure imbibition pipeline | |
| CN221300119U (en) | Water conservancy control valve resistant to water pressure fluctuation interference | |
| CN210716133U (en) | Full bore check valve | |
| CN214037029U (en) | Novel pneumatic sand adding valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |