CN217762090U - Straight-through check valve - Google Patents
Straight-through check valve Download PDFInfo
- Publication number
- CN217762090U CN217762090U CN202221657093.1U CN202221657093U CN217762090U CN 217762090 U CN217762090 U CN 217762090U CN 202221657093 U CN202221657093 U CN 202221657093U CN 217762090 U CN217762090 U CN 217762090U
- Authority
- CN
- China
- Prior art keywords
- plate
- valve
- rocking plate
- rocking
- valve body
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model discloses a direct check valve: the valve comprises a valve body, wherein a sealing plate and a top plate are respectively arranged at the lower part and the upper part of the inner end of a pipe orifice at one side of the valve body; a rotatable rocking plate is further arranged in the valve body and close to the top plate, the rocking plate is hook-shaped, the lower end of the rocking plate is in contact fit with the sealing plate, a protruding block is arranged on the upper portion of the rocking plate, and the protruding block is in contact fit with the top plate. The included angle between the main body of the rocking plate and the sealing plate is 45-75 degrees. Compared with the prior art, the utility model the advantage lie in: the rocking plate can be completely closed due to dead weight under the non-pressure condition, has good non-return effect and has very high practical value and popularization value.
Description
Technical Field
The utility model relates to a direct check valve technical field specifically indicates a direct check valve.
Background
The check valve is a valve which automatically opens and closes a valve flap by the flow of a medium and is used for preventing the medium from flowing backwards, and is also called a check valve, a one-way valve, a reverse flow valve and a back pressure valve. The function of the straight-through check valve is to allow the medium to flow in one direction only, and to prevent the flow in the opposite direction. Typically such valves are self-actuating, with the flap opening under the pressure of a fluid flowing in one direction; when the fluid flows in the opposite direction, the valve clack is acted on the valve seat by the fluid pressure and the self weight of the valve clack, thereby cutting off the flow.
Many of the straight-through check valves today have flaps that naturally sag approximately 90 degrees and, in the absence of input pressure, can open with little pressure from the media itself contacting the flap causing backflow.
The utility model discloses an reachs based on above current situation.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the defect of above-mentioned technique, provide a direct check valve.
In order to solve the technical problem, the utility model provides a technical scheme is a direct check valve: the valve comprises a valve body, wherein a sealing plate and a top plate are respectively arranged at the lower part and the upper part of the inner end of a pipe orifice at one side of the valve body; the valve body is internally provided with a rotary rocking plate close to the top plate, the rocking plate is in a hook shape, the lower end of the rocking plate is in contact fit with the sealing plate, the upper part of the rocking plate is provided with a convex block, and the convex block is in contact fit with the top plate.
As an improvement, the included angle between the main body of the rocking plate and the sealing plate is 45-75 degrees.
Compared with the prior art, the utility model the advantage lie in: the rocker plate can be completely closed due to dead weight under the non-pressure condition, the non-return effect is good, and the rocker plate has high practical value and popularization value.
Drawings
Fig. 1 is a schematic structural view of the through check valve of the present invention.
As shown in the figure: 1. valve body, 2, closing plate, 3, roof, 4, rocker, 5, lug.
Detailed Description
The following describes the straight check valve of the present invention in further detail with reference to the accompanying drawings.
With reference to fig. 1, the straight-through check valve comprises a valve body 1, wherein a sealing plate 2 and a top plate 3 are respectively arranged at the lower part and the upper part of the inner end of a pipe orifice at one side of the valve body 1; a rotary rocking plate 4 is further arranged in the valve body 1 close to the top plate 3, the rocking plate 4 is hook-shaped, the lower end of the rocking plate is in contact fit with the sealing plate 2, a protruding block 5 is arranged on the upper portion of the rocking plate 4, and the protruding block 5 is in contact fit with the top plate 3.
The included angle between the main body of the rocking plate 4 and the sealing plate 2 is 45-75 degrees.
The utility model discloses when concrete implementation, the mouth of pipe of closing plate 2 side is the fluid input, and the wobble plate 4 plays the non return effect to the fluid of the other end.
This straight-through check valve, rocker plate 4 can be because of the dead weight is closed completely under the non-pressure condition, and the non return is effectual, has very high practical value and spreading value.
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 construed to limit the scope of the present invention without inventively designing other similar structures and embodiments without departing from the spirit of the present invention.
Claims (2)
1. A straight-through check valve characterized by: the valve comprises a valve body (1), wherein a sealing plate (2) and a top plate (3) are respectively arranged at the lower part and the upper part of the inner end of a pipe orifice at one side of the valve body (1); the valve is characterized in that a rotatable rocking plate (4) is further arranged in the valve body (1) close to the top plate (3), the rocking plate (4) is hook-shaped, the lower end of the rocking plate is in contact fit with the sealing plate (2), a protruding block (5) is arranged on the upper portion of the rocking plate (4), and the protruding block (5) is in contact fit with the top plate (3).
2. A straight-through check valve as set forth in claim 1, wherein: the included angle between the main body of the rocking plate (4) and the sealing plate (2) is 45-75 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221657093.1U CN217762090U (en) | 2022-06-29 | 2022-06-29 | Straight-through check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221657093.1U CN217762090U (en) | 2022-06-29 | 2022-06-29 | Straight-through check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217762090U true CN217762090U (en) | 2022-11-08 |
Family
ID=83896372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221657093.1U Expired - Fee Related CN217762090U (en) | 2022-06-29 | 2022-06-29 | Straight-through check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217762090U (en) |
-
2022
- 2022-06-29 CN CN202221657093.1U patent/CN217762090U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221108 |