CN219827934U - Splash-proof structure of backflow-preventing air-interval water valve - Google Patents
Splash-proof structure of backflow-preventing air-interval water valve Download PDFInfo
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- CN219827934U CN219827934U CN202320041782.8U CN202320041782U CN219827934U CN 219827934 U CN219827934 U CN 219827934U CN 202320041782 U CN202320041782 U CN 202320041782U CN 219827934 U CN219827934 U CN 219827934U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 321
- 230000002265 prevention Effects 0.000 claims 9
- 238000000926 separation method Methods 0.000 claims 8
- 125000006850 spacer group Chemical group 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model provides a splash-proof structure of a backflow-preventing air interval water valve, which comprises a water inlet valve body and a water inlet pipe of a water supply tank, wherein the water inlet valve body is fixed above the water inlet pipe, the upper end of the water inlet pipe is a water inlet end, the water inlet valve body is provided with a water outlet right above the water inlet end, and an air interval is arranged between the water outlet and the water inlet end; the anti-splash ring is arranged in the water inlet end of the flow guide pipe, an arc-shaped bulge is arranged in the center of the anti-splash ring, an arc-shaped surface which guides the water flow direction above the arc-shaped bulge to the circumferential side is arranged on the arc-shaped bulge, and a plurality of support rods are formed on the edge of the anti-splash ring extending radially outwards from the outer circumference of the arc-shaped bulge. The utility model can prevent the water flowing out of the water outlet from splashing upwards and can slow down the water flow speed.
Description
Technical Field
The utility model belongs to the technical field of water inlet valves, and particularly relates to a splash-proof structure of a backflow-preventing air interval water valve.
Background
The water inlet channel and the water outlet channel of the traditional water inlet valve are directly connected, so that the water outlet is directly contacted with the water of the water tank, the risk of water backflow exists, and the water of the water pipe is polluted. In order to prevent water backflow, the water outlet of the existing water inlet valve is lifted to be above the highest water level in the water tank, a flow guide pipe is arranged below the water outlet, water flowing out of the water outlet flows into the flow guide pipe and flows into the water tank along the flow guide pipe, an air gap communicated with external air exists between the water outlet and the flow guide pipe, the structure ensures that the water outlet is not in direct contact with the highest water surface, water backflow can be prevented, and negative pressure can be counteracted by absorbing external air; however, when the water in the water tank is at a high water level, the water flowing out of the water outlet can collide with the water surface at a high speed to cause water flow to uprush or splash everywhere, so that a splash-proof structure is required to be arranged below the water outlet.
Disclosure of Invention
The utility model aims to provide a splash-proof structure of a backflow-preventing air interval water valve, which can prevent water flowing out of a water outlet from splashing upwards and can slow down the water flow speed.
To achieve the above object, the solution of the present utility model is: the splash-proof structure of the backflow-preventing air-interval water-isolating valve comprises a water inlet valve body and a water inlet pipe of a water supply tank, wherein the water inlet valve body is fixed above the water inlet pipe, the upper end of the water inlet pipe is a water inlet end, the water inlet valve body is provided with a water outlet right above the water inlet end, and an air interval is arranged between the water outlet and the water inlet end; the anti-splash ring is arranged in the water inlet end of the flow guide pipe, an arc-shaped bulge is arranged in the center of the anti-splash ring, an arc-shaped surface which guides the water flow direction above the arc-shaped bulge to the circumferential side is arranged on the arc-shaped bulge, and a plurality of support rods are formed on the edge of the anti-splash ring extending radially outwards from the outer circumference of the arc-shaped bulge.
Further, the arc surface of the arc-shaped bulge is a hemispherical cambered surface.
Further, the support rods are provided with four support rods, and water inlets are formed between two adjacent support rods for water to pass through.
Further, the water inlet valve body is also provided with a pipe joint, the pipe joint is positioned under the water outlet, the outer side wall of the pipe joint is provided with a buckle, the side wall of the water inlet end of the flow guide pipe is provided with a bayonet or a clamping groove, and the pipe joint is buckled with the flow guide pipe through the buckle and the bayonet or the clamping groove.
Further, the water inlet end of the flow guide pipe is arranged to be an outer expansion section, the pipe joint is inserted into the outer expansion section to be buckled with the flow guide pipe, and the splash-proof ring is arranged between the bottom end of the outer expansion end and the pipe joint and is clamped and fixed by the bottom end of the outer expansion end and the pipe joint.
Further, the outer side wall of the pipe joint is provided with a positioning convex rib, the top end of the flow guide pipe is provided with a positioning notch matched with the positioning convex rib, and the pipe joint is in positioning connection with the flow guide pipe through the positioning convex rib and the positioning notch.
Further, the lower part of the water inlet valve body is provided with a water outlet pipeline, the left side of the upper part is provided with a water outlet pipeline, the right side of the upper part is provided with a support column, the right side of the water outlet pipeline is provided with a water inlet, the left side is communicated with the water outlet pipeline, the top end of the water outlet pipeline transversely extends to cross over the upper part of the flow guide pipe and is connected with the support column, the transversely extending part of the water outlet pipeline is provided with a water outlet, and the water outlet is positioned on the front side of the water outlet pipeline and right above the flow guide pipe.
Further, the top end of the water inlet pipeline transversely extends to cross over the upper part of the guide pipe and is connected with the top end of the support column to form an inverted U-shaped pipe body, a water outlet cavity protruding forwards is formed in the top of the inverted U-shaped pipe body, the water outlet cavity is communicated with the water outlet channel, and a water outlet is formed in the bottom wall of the water outlet cavity.
Further, an anti-siphon plug is arranged at the communication part of the water outlet cavity and the water inlet pipeline.
Further, a back pressure valve is arranged at the communication part of the water inlet pipeline and the water outlet pipeline, a pontoon is sleeved on the guide pipe, and the back pressure valve is connected with the pontoon.
After the scheme is adopted, the beneficial effects of the utility model are as follows:
the utility model sets a splash-proof ring at the water inlet end of the flow guide pipe, the center of the splash-proof ring is provided with an arc-shaped bulge, and the arc-shaped bulge is provided with an arc-shaped surface for guiding the water flow direction above the arc-shaped bulge to the periphery; when water flows out of the water outlet and flows downwards into the flow guide pipe at a high speed, the water flow can impact the arc-shaped bulge at the center of the splash-proof ring, the arc-shaped bulge can decompose the impact force of the water flow and change the direction of the water flow, and the flow direction of the water flow is guided to the peripheral side, so that the water flow flows downwards along the flow guide pipe wall after being arranged on the pipe wall of the flow guide pipe, even if the water in the water tank is in a high water level state, the water flow can not directly impact the water surface, the water flow is caused to upwelling or splashed everywhere, but flows downwards on the pipe wall of the peripheral side, and the arc-shaped bulge and the pipe wall of the flow guide pipe successively counteract part of the impact force of the water flow, so that the water flow is effectively prevented from splashing upwards, and the water flow speed is slowed down.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is a schematic perspective view of the splash guard of the present utility model;
FIG. 3 is a schematic perspective view of the first embodiment of the present utility model;
FIG. 4 is an exploded view of the present utility model;
FIG. 5 is a schematic diagram showing a second perspective structure of the present utility model;
fig. 6 is a front view of the present utility model.
Description of the reference numerals:
1. a water inlet valve body; 11. a water passing pipe; 12. a water outlet pipe; 13. a support column; 14. a water outlet; 15. a water outlet cavity; 151. an anti-siphon plug; 152. a top cover; 16. a water inlet; 17. a pipe joint; 171. a buckle; 172. positioning the convex ribs; 18. a nut; 2. a flow guiding pipe; 21. a bayonet; 22. an outer expansion section; 23. positioning the notch; 3. a splash-proof ring; 31. arc-shaped bulges; 32. a support rod; 4. a back pressure valve; 5. a pontoon; 51. a screw; 6. and a water inlet joint.
Detailed Description
The utility model will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a splash-proof structure of a backflow-preventing air interval water valve, which is shown in figure 1 and comprises a water inlet valve body and a flow guide pipe for feeding water into a water tank.
As shown in fig. 1 and 6, the water inlet valve body is fixed above the flow guide pipe, the upper end of the flow guide pipe is a water inlet end, the water inlet valve body is provided with a water outlet right above the water inlet end, an air interval with the length of D is arranged between the water outlet and the water inlet end, the air interval is communicated with the outside air, water in the water inlet valve body flows into the water tank through the flow guide pipe after flowing out from the water outlet and flowing through the air interval, and the water flows in a suspended flowing state when flowing through the air interval; the water outlet is positioned at the highest position of the water inlet valve and is higher than the highest water level in the water tank, so that the water outlet is not in contact with water in the water tank, the water outlet is directly in contact with external air, the water outlet is separated from the water in the water tank by air, when a certain negative pressure phenomenon occurs in the water inlet valve body, the water outlet directly sucks air from the outside, and the suction force of the negative pressure on the water in the water tank is counteracted, so that an anti-siphon effect is achieved.
As shown in figure 1, the splash-proof ring is arranged in the water inlet end of the flow guide pipe, the center of the splash-proof ring is provided with an arc-shaped bulge, the upper surface of the arc-shaped bulge is an arc-shaped surface capable of guiding the water flow direction above the arc-shaped bulge to the periphery, when water flows out of the water outlet and flows downwards into the flow guide pipe at a high speed, the water flow can impact the arc-shaped bulge in the center of the splash-proof ring, the cambered surface of the arc-shaped bulge can decompose the impulse of the water flow and change the direction of the water flow, the water flow is led to the periphery, so that the water flow flows downwards along the pipe wall of the flow guide pipe after flowing on the pipe wall of the flow guide pipe, even if the water in the water tank is in a high water level state, the water flow can not directly impact the water surface, the water flow is caused to flow upwards or splashed everywhere, but flows downwards on the pipe wall of the flow guide pipe, and the arc-shaped bulge and the pipe wall of the flow guide pipe successively counteracts part of the impulse of the water flow, so that the water flow is effectively prevented from upwards splashing, and the water flow speed is slowed down.
As shown in fig. 2, the arc surface of the arc-shaped protrusion is a hemispherical arc surface or an arc surface with other shapes, in this embodiment, the hemispherical arc surface is preferred, and the radian of the hemispherical arc surface can fully decompose the impulse of water flow and change the direction of water flow with large radian, so that the water flow flowing through the arc surface is guided to the peripheral side. The bellied periphery of arc radially extends to the border of splashproof ring and forms a plurality of spinal branch vaulting poles, the vaulting pole plays the supporting role to the arc arch, still plays the reposition of redundant personnel effect simultaneously, shunts certain water velocity also reducible with rivers, in this embodiment, the bracing piece is equipped with four, forms water mouth water supply flow through between two adjacent bracing pieces, and four bracing pieces can be equipped with four water gap, can divide into four with rivers, and the quantity setting of bracing piece is suitable, guarantees to have sufficient water mouth area. As shown in FIG. 1, the inside of the arc-shaped bulge can be hollow, so that the material can be saved.
As shown in fig. 3 and fig. 4, the lower part of the water inlet valve body is provided with a water passing pipeline, the left side of the upper part is provided with a water outlet pipeline, the right side of the upper part is provided with a support column, the right side of the water passing pipeline is provided with a water inlet, the left side is communicated with the water outlet pipeline, the top end of the water outlet pipeline transversely extends across the upper part of the flow guiding pipe and is connected with the top end of the support column to form an inverted U-shaped pipe body, the top part of the inverted U-shaped pipe body, namely, the transversely extending part of the water outlet pipeline is provided with a water outlet, the water outlet is positioned on the front side of the water passing pipeline and right above the flow guiding pipe, the two ends of the water outlet pipeline are respectively communicated with the water outlet of the water passing pipeline, and no water flow channel is not communicated with the water passing pipeline and the water outlet in the support column, and the water outlet is only used as a supporting piece. As shown in figure 1, water flows into the water flowing pipeline from the water inlet to the left, flows into the water outlet pipeline from the right in a detouring way, flows upwards to the upper part of the flow guiding pipe along the water outlet pipe and flows out from the water outlet, and because the water outlet is positioned between the water outlet pipeline and the supporting columns, the water outlet pipeline and the supporting columns have symmetrical supporting functions on two sides of the water outlet respectively for two supporting pieces, so that the structure is stable, when the water outlet is discharged from the water outlet, the phenomenon of gravity center offset and vibration of the water outlet pipeline can not occur, water flow splashing can not be caused, the water outlet pipeline is not easy to damage, and the service life is long.
As shown in fig. 1 and fig. 4, the top of the inverted U-shaped pipe body, that is, the transversely extending part of the water outlet pipe, is provided with a water outlet cavity protruding forward, the water outlet cavity is communicated with the water outlet pipe, the bottom wall of the water outlet cavity is provided with a water outlet, so that the water outlet is located at the front side of the water outlet pipe, the guide pipe is correspondingly arranged at the front side of the water outlet pipe, the air interval between the water outlet and the guide pipe is staggered from the front side to the rear side of the water outlet pipe, water does not contact with the water outlet pipe when flowing through the air interval, the structural design is ingenious, the space layout is reasonably utilized, the water outlet pipe is arranged above the water outlet pipe, a support column is arranged at one side of the water outlet pipe, a water outlet staggered from the front side to the rear side of the water outlet pipe is arranged between the water outlet pipe and the support column, the purpose of lifting the water outlet and forming the air interval with the guide pipe is achieved, backflow can be prevented, and the water outlet pipe can be reinforced.
As shown in fig. 1 and 4, an anti-siphon plug is arranged at the communication part of the water outlet cavity and the water inlet pipeline to prevent water in the water outlet cavity from flowing back into the water outlet pipeline. For the convenience of replacing the anti-siphon plug, an opening can be formed in the top of the water outlet cavity, a top cover is covered on the opening, the top cover and the water outlet cavity can be fastened and fixed, the disassembly and the assembly are fast and convenient, the water outlet pipeline is convenient to maintain, and the anti-siphon plug is convenient to replace.
As shown in FIG. 5, the water inlet valve body is also provided with a pipe joint for connecting the flow guide pipe, the pipe joint is positioned under the water outlet and at the front side of the water passing pipeline and can be integrally connected with the water inlet valve body, and the pipe joint and the flow guide pipe can be connected and fixed in a fastening manner, so that the water inlet valve is convenient to assemble and disassemble. The pipe joint is characterized in that a buckle is arranged on the outer side wall of the pipe joint, the top end of the flow guide pipe is a water inlet end, a bayonet or a clamping groove is formed in the side wall of the water inlet end, and the pipe joint is buckled with the flow guide pipe through the buckle and the bayonet or the clamping groove. In this embodiment, a bayonet is preferred, and the connection is more secure. For the convenience of the buckling connection of the pipe joint and the guide pipe, a foolproof structure can be further arranged on the pipe joint and the guide pipe, namely, a positioning convex rib is convexly arranged on the outer side wall of the pipe joint, a positioning notch matched with the positioning convex rib is arranged at the top end of the guide pipe, and after the positioning notch on the guide pipe is aligned with the positioning convex rib on the pipe joint, the buckle can be aligned with a bayonet, so that the connection is rapid and accurate.
As shown in fig. 1, as a preferred embodiment, the water inlet end of the flow guide pipe is provided with an outer expansion section, the pipe joint is inserted into the outer expansion section to be fastened with the flow guide pipe, a splash-proof net can be arranged in the outer expansion section to prevent water from impacting on the water surface at a high speed at a high water level to cause water flow to surge or splash everywhere, and the splash-proof net can be arranged between the bottom end of the outer expansion section and the pipe joint to be clamped and fixed by the pipe joint and the bottom end of the outer expansion section.
As shown in FIG. 4, as a preferred embodiment, the water inlet at one side of the water passing pipe is connected with a water inlet joint through a nut, and the water inlet joint can be externally connected with a water inlet pipe through the water inlet joint, and the water inlet joint is provided with a thread section, so that the connection is convenient and quick. In addition, a filter screen can be arranged in the water inlet joint to filter impurities in water.
As shown in fig. 1 and 5, a back pressure valve is arranged at the communication part of the water passing pipeline and the water outlet pipeline, a pontoon capable of sliding up and down along the guide pipe is sleeved on the guide pipe, a screw is arranged on the pontoon and is connected with the back pressure valve through the screw, and the back pressure valve judges the water level along with the up and down movement of the pontoon so as to open and close the water inlet valve.
The above embodiments are only preferred embodiments of the present utility model, and are not limited to the present utility model, and all equivalent changes made according to the design key of the present utility model fall within the protection scope of the present utility model.
Claims (10)
1. An anti-splash structure of anti-return air interval water valve, its characterized in that: the water inlet valve comprises a water inlet valve body and a water inlet pipe for water inlet of a water supply tank, wherein the water inlet valve body is fixed above the water inlet pipe, the upper end of the water inlet pipe is a water inlet end, the water inlet valve body is provided with a water outlet right above the water inlet end, and an air interval is arranged between the water outlet and the water inlet end; the anti-splash ring is arranged in the water inlet end of the flow guide pipe, an arc-shaped bulge is arranged in the center of the anti-splash ring, an arc-shaped surface which guides the water flow direction above the arc-shaped bulge to the circumferential side is arranged on the arc-shaped bulge, and a plurality of support rods are formed on the edge of the anti-splash ring extending radially outwards from the outer circumference of the arc-shaped bulge.
2. The splash-proof structure of the backflow prevention air separation water valve according to claim 1, wherein: the arc surface of the arc-shaped bulge is a hemispherical cambered surface.
3. The splash-proof structure of the backflow prevention air separation water valve according to claim 1, wherein: the support rods are four, and water inlets are formed between two adjacent support rods for water to pass through.
4. The splash-proof structure of the backflow prevention air separation water valve according to claim 1, wherein: the water inlet valve is characterized in that the water inlet valve body is also provided with a pipe joint, the pipe joint is positioned right below the water outlet, the outer side wall of the pipe joint is provided with a buckle, the side wall of the water inlet end of the flow guide pipe is provided with a bayonet or a clamping groove, and the pipe joint is buckled with the flow guide pipe through the buckle and the bayonet or the clamping groove.
5. The splash-proof structure of the backflow prevention air separation water valve according to claim 4, wherein: the water inlet end of the honeycomb duct is arranged to be an outward expansion section, the pipe joint is inserted into the outward expansion section to be buckled with the honeycomb duct, and the splash-proof ring is arranged between the bottom end of the outward expansion end and the pipe joint and is clamped and fixed by the bottom end of the outward expansion end and the pipe joint.
6. A splash-proof structure of a backflow prevention air spacer valve according to claim 4 or 5, wherein: the pipe joint is characterized in that a positioning convex rib is arranged on the outer side wall of the pipe joint, a positioning notch matched with the positioning convex rib is arranged at the top end of the flow guide pipe, and the pipe joint is in positioning connection with the flow guide pipe through the positioning convex rib and the positioning notch.
7. The splash-proof structure of the backflow prevention air separation water valve according to claim 1, wherein: the water inlet valve is characterized in that the lower part of the water inlet valve body is provided with a water outlet pipeline, the left side of the upper part is provided with a water outlet pipeline, the right side of the upper part is provided with a support column, the right side of the water outlet pipeline is provided with a water inlet, the left side of the water outlet pipeline is communicated with the water outlet pipeline, the top end of the water outlet pipeline transversely extends to cross over the upper part of the guide pipe and is connected with the support column, the transversely extending part of the water outlet pipeline is provided with a water outlet, and the water outlet is positioned on the front side of the water outlet pipeline and right above the guide pipe.
8. The splash-proof structure of the backflow prevention air separation water valve according to claim 7, wherein: the top of the water outlet pipeline transversely extends to cross over the upper part of the flow guide pipe and is connected with the top of the supporting column to form an inverted U-shaped pipe body, a water outlet cavity protruding forwards is formed in the top of the inverted U-shaped pipe body, the water outlet cavity is communicated with the water outlet channel, and a water outlet is formed in the bottom wall of the water outlet cavity.
9. The splash-proof structure of the backflow prevention air separation water valve according to claim 8, wherein: and an anti-siphon plug is arranged at the communication part of the water outlet cavity and the water inlet pipeline.
10. The splash-proof structure of the backflow prevention air separation water valve according to claim 7, wherein: the back pressure valve is arranged at the communication part of the water passing pipeline and the water outlet pipeline, the float bowl is sleeved on the flow guide pipe, and the back pressure valve is connected with the float bowl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320041782.8U CN219827934U (en) | 2023-01-06 | 2023-01-06 | Splash-proof structure of backflow-preventing air-interval water valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320041782.8U CN219827934U (en) | 2023-01-06 | 2023-01-06 | Splash-proof structure of backflow-preventing air-interval water valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827934U true CN219827934U (en) | 2023-10-13 |
Family
ID=88274428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320041782.8U Active CN219827934U (en) | 2023-01-06 | 2023-01-06 | Splash-proof structure of backflow-preventing air-interval water valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827934U (en) |
-
2023
- 2023-01-06 CN CN202320041782.8U patent/CN219827934U/en active Active
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