CN215371131U - Sensitive and reliable air gap anti-siphon valve - Google Patents
Sensitive and reliable air gap anti-siphon valve Download PDFInfo
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- CN215371131U CN215371131U CN202121867506.4U CN202121867506U CN215371131U CN 215371131 U CN215371131 U CN 215371131U CN 202121867506 U CN202121867506 U CN 202121867506U CN 215371131 U CN215371131 U CN 215371131U
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- siphon
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Abstract
The utility model discloses a sensitive and reliable air gap anti-siphon valve which comprises a valve body and a valve core, wherein a valve cavity communicated with an external water supply channel is arranged in the valve body, an air hole communicated with the valve cavity is formed in the valve body, the valve core can be freely lifted and arranged in the valve cavity to block the air hole, and a floater is arranged at the bottom of the valve core. The utility model provides a sensitive and reliable air gap anti-siphon valve which can automatically switch the closed and ventilated states of a valve body without external force, and has high sensitivity and good anti-siphon effect.
Description
Technical Field
The utility model relates to the technical field of sanitary ware, in particular to a sensitive and reliable air gap anti-siphon valve.
Background
Anti-siphon valves used in sanitary ware products are used on sanitary ware water inlet devices by utilizing various one-way valves to realize anti-siphon function. Common one-way valve structures comprise a diaphragm type, a valve type, a duckbill type and the like, which have the common characteristics, are insensitive to reaction and need to be opened under a higher negative pressure state, so that the anti-siphon function is realized. In order to avoid water overflow when water is recovered, the valve plates are provided with external acting force for automatically returning and sealing the air inlet, so that a certain negative pressure is required to open the air inlet.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a sensitive and reliable air gap anti-siphon valve, which is capable of opening the air gap valve when a pipeline is in pressure loss, ensuring the anti-siphon effect, automatically switching the closed and ventilated states of a valve body without external force, and having high sensitivity and good anti-siphon effect.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the sensitive and reliable air gap anti-siphon valve comprises a valve body and a valve core, wherein a valve cavity communicated with an external water supply channel is arranged in the valve body, an air hole communicated with the valve cavity is formed in the valve body, the valve core can be freely lifted and arranged in the valve cavity and used for blocking the air hole, and a floater is arranged at the bottom of the valve core.
Preferably, the valve core comprises a guide post and a sealing seat arranged at the bottom of the guide post, and a guide pipe for accommodating the guide post to ascend and descend is arranged at the top of the valve body.
Preferably, a sealing gasket is arranged on one side, close to the air hole, of the sealing seat.
Preferably, the inner wall of the valve cavity is provided with a stop step part for supporting the bottom of the valve core.
Preferably, the valve body includes valve body, disk seat and gland, the valve body be equipped with the installing port of valve pocket intercommunication, disk seat demountable installation be in on the installing port, the gland lid is established on the disk seat, and its with the valve body passes through threaded structure and connects.
Preferably, a sealing ring is arranged between the valve body and the valve seat.
After adopting the technical scheme, compared with the background technology, the utility model has the following advantages:
1. the air gap anti-siphon valve is sensitive and reliable, the air gap valve is opened when the pipeline is in pressure loss, the anti-siphon effect is ensured, the valve core is arranged in the valve cavity in a lifting mode through the floater, when the external water supply channel is filled with water, water flow enters the valve cavity, the valve core is lifted, the sealing seat blocks the air hole, the water flow is prevented from overflowing, when the external water supply channel is stopped, the valve core is descended, external air enters the water supply channel through the air hole, the sealing and air-filling states of the valve body can be automatically switched without external force, the sensitivity is high, and the anti-siphon effect is good.
2. According to the sensitive and reliable air gap anti-siphon valve, the guide pipe for lifting the guide pillar on the valve core is arranged at the top of the valve body, so that the valve core is positioned in the horizontal position in the valve cavity; the valve cavity is internally provided with a stop step part for supporting the bottom of the valve core, so that the position of the valve core in the vertical direction in the valve cavity is limited, the sensitivity of the valve core is improved, and the service life is prolonged.
3. According to the sensitive and reliable air gap anti-siphon valve, the sealing gasket is arranged on the sealing seat, and the sealing ring is arranged between the valve body and the valve seat, so that the sealing performance of the whole anti-siphon valve is improved, and water flow leakage when a water supply channel is filled with water is prevented.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view illustrating a state in which a water passage is filled with water;
fig. 3 is a schematic view illustrating the present invention in a state that the water supply passage is cut off.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the apparatus or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
Referring to fig. 1, 2 and 3, the present invention discloses a sensitive and reliable air gap anti-siphon valve, which is detachably disposed above an external water supply channel 1, and includes a valve body 2 and a valve core 3, wherein the valve body 2 is provided with a valve cavity 21 communicated with the external water supply channel 1, the valve body 2 is provided with an air hole 22 communicated with the valve cavity 21, the valve core 3 is freely lifted and lowered and disposed in the valve cavity 21 for blocking the air hole 22, the size of the valve core 3 is smaller than that of the inner wall of the valve cavity 21, the valve core 3 forms a gap with the inner wall of the valve cavity 21 for external air to enter, and the bottom of the valve core 3 is provided with a float 31.
In this embodiment, the valve core 3 is shaped like a Chinese character 'ji', the valve core 31 includes a guide post 32 and a sealing seat 33 disposed at the bottom of the guide post 32, and the top of the valve body 2 is provided with a guide tube 23 for accommodating the guide post 32 to move up and down. The sealing seat 33 is provided with a sealing gasket 34 at one side close to the air hole 22, so that the whole anti-siphon sealing performance is improved, and the water flow leakage is prevented when the water supply channel 1 is communicated with water.
The valve body 2 comprises a valve body 24, a valve seat 25 and a gland 26, the valve body 24 is provided with an installation opening communicated with the valve cavity 21, the valve seat 25 is detachably installed on the installation opening, the gland 26 is covered on the valve seat 25, and the valve body 24 is connected with the valve body through a thread structure 261.
A seal ring 27 is provided between the valve body 24 and the valve seat 25. Improve whole leakproofness of preventing the siphon, when preventing that water supply passage 1 leads to water, rivers are revealed.
The inner wall of the valve cavity 21 is provided with a stop step part 211 for supporting the bottom of the valve core 3, the position of the valve core 3 in the valve cavity 21 in the vertical direction is limited, when the water supply channel 1 stops water, the valve core 3 drops into the water supply channel 1, the top of the valve body 2 is provided with a guide pipe 23 for lifting the guide pillar 31 on the valve core 3, the position of the valve core 3 in the valve cavity 21 in the horizontal direction is positioned, the valve core 3 is prevented from running left and right when lifted, the sensitivity of the valve core 3 is improved, and the service life is prolonged.
When the external water supply channel 1 is filled with water, water flows into the valve cavity 21, the float 31 drives the valve core 3 to rise, the sealing seat 33 blocks the air hole 22 to prevent the water from overflowing, when the external water supply channel 1 is cut off, the float 31 drives the valve core 3 to fall, and external air enters the water supply channel 1 through the air hole 22 to achieve the anti-siphon effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A sensitive and reliable air gap anti-siphon valve is characterized in that: the water supply valve comprises a valve body and a valve core, wherein a valve cavity communicated with an external water supply channel is arranged in the valve body, an air hole communicated with the valve cavity is formed in the valve body, the valve core can be freely lifted and arranged in the valve cavity and used for blocking the air hole, and a floater is arranged at the bottom of the valve core.
2. A sensitive, reliable air-gap anti-siphon valve according to claim 1, wherein: the valve core comprises a guide post and a sealing seat arranged at the bottom of the guide post, and a guide pipe for accommodating the guide post to lift is arranged at the top of the valve body.
3. A sensitive, reliable air-gap anti-siphon valve according to claim 2, wherein: and a sealing gasket is arranged on one side of the sealing seat close to the air hole.
4. A sensitive, reliable air-gap anti-siphon valve according to claim 1, wherein: the inner wall of the valve cavity is provided with a stop step part for supporting the bottom of the valve core.
5. A sensitive, reliable air-gap anti-siphon valve according to claim 1, wherein: the valve body comprises a valve body, a valve seat and a gland, the valve body is provided with an installation opening communicated with the valve cavity, the valve seat is detachably installed on the installation opening, the gland cover is arranged on the valve seat and is connected with the valve body through a threaded structure.
6. The sensitive, reliable air-gap anti-siphon valve of claim 5, wherein: and a sealing ring is arranged between the valve body and the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121867506.4U CN215371131U (en) | 2021-08-11 | 2021-08-11 | Sensitive and reliable air gap anti-siphon valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121867506.4U CN215371131U (en) | 2021-08-11 | 2021-08-11 | Sensitive and reliable air gap anti-siphon valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215371131U true CN215371131U (en) | 2021-12-31 |
Family
ID=79617809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121867506.4U Active CN215371131U (en) | 2021-08-11 | 2021-08-11 | Sensitive and reliable air gap anti-siphon valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215371131U (en) |
-
2021
- 2021-08-11 CN CN202121867506.4U patent/CN215371131U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 361000 Room 501, No. 90, anling Second Road, Huli District, Xiamen City, Fujian Province Patentee after: Xiamen Yingfeng Technology Co.,Ltd. Address before: Unit 208, Xiaxin capital building, 257 Lingxia West Road, Huli District, Xiamen City, Fujian Province, 361000 Patentee before: Xiamen Yingfeng Technology Co.,Ltd. |