CN217381777U - Exhaust water stop valve - Google Patents

Abstract

The utility model discloses an exhaust water stop valve, which comprises a valve seat, a liquid channel and an exhaust channel, wherein the liquid channel is communicated with the exhaust channel, a valve core and a first spring are arranged in the liquid channel, and an exhaust plug and a second spring are arranged in the exhaust channel; the first spring elastic pressure is greater than the second spring elastic pressure, the vent plug is matched with the second spring to be used for venting or stopping water, and the valve core is matched with the first spring to be used for preventing backflow or water flowing. When gas exists in the liquid channel, the valve core blocks the gas under the action of the first spring, and the gas can be discharged only along the exhaust channel, so that the function of exhausting gas is realized; when liquid is introduced into the liquid channel, the vent plug moves upwards to block the outlet of the vent channel, the liquid cannot be discharged from the vent channel, the water stopping function is realized, the valve core is pushed away along with the continuous introduction of the liquid, and the liquid can pass through the valve core.

Description

Exhaust water stop valve

Technical Field

The utility model relates to an exhaust valve technical field, in particular to exhaust stagnant water valve.

Background

On welder or other easy heat production equipment, can set up the pipeline usually and dispel the heat and cool down to set up discharge valve in the pipeline, fall the gas emission in the pipeline, avoid during operation to damage pipeline and equipment. Some exhaust valves do not have the function of water stopping after exhausting, and a part of liquid in a pipeline is discharged, so that the energy waste is caused, and meanwhile, the dangerous hidden danger exists for equipment.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an exhaust water stop valve possesses the function of exhaust and stagnant water, simple structure, and the practicality is strong.

The exhaust water stop valve comprises a valve seat, a liquid channel and an exhaust channel are arranged, the liquid channel is communicated with the exhaust channel, a valve core and a first spring are arranged in the liquid channel, and an exhaust plug and a second spring are arranged in the exhaust channel; the first spring elastic pressure is greater than the second spring elastic pressure, the vent plug is matched with the second spring to be used for venting or stopping water, and the valve core is matched with the first spring to be used for stopping or passing water.

According to the utility model discloses exhaust stagnant water valve has following beneficial effect at least:

when gas exists in the liquid channel, the elastic pressure of the first spring and the second spring is greater than the gas pressure, the valve core and the exhaust plug cannot be pushed away, the gas is blocked by the valve core and can only be exhausted along the exhaust channel, and the exhaust function is realized; when the liquid pressure is greater than the first spring elastic pressure, the valve core is pushed away, and the liquid can pass through the valve core.

According to some embodiments of the utility model, the exhaust water stop valve still includes the exhaust joint, the exhaust joint with disk seat threaded connection, the exhaust joint is provided with the through-hole, the through-hole with exhaust passage intercommunication.

According to some embodiments of the utility model, the core vent upper end is provided with first inclined plane, through-hole lower extreme inner wall is provided with the second inclined plane, first inclined plane with the separation of second inclined plane, the through-hole is in the exhaust state, first inclined plane with second inclined plane butt, the through-hole is in the closed condition.

According to some embodiments of the utility model, the core vent lower extreme is provided with the support frame, the support frame appearance with exhaust passage's inner wall shape matches.

According to some embodiments of the invention, the exhaust fitting and the valve seat are provided with a first O-ring for sealing.

According to some embodiments of the invention, a second O-ring is provided between the valve element and the valve seat for sealing.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an overall structure of an exhaust water stop valve according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another view angle;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is a schematic view of an internal structure of a liquid passage according to an embodiment of the present invention when liquid is introduced into the liquid passage;

fig. 5 is a schematic structural diagram of a vent plug according to an embodiment of the present invention.

Description of reference numerals:

a valve seat 110, a liquid passage 111, an exhaust passage 112;

a spool 210, a first spring 220;

a vent plug 310, a first inclined surface 311, a support frame 312, a second spring 320;

the exhaust joint 410, the through hole 411, the second slope 411 a;

a first O-ring 510, a second O-ring 520.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated clamp or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, an embodiment of the present invention provides an exhaust water stop valve, including a valve seat 110, provided with a liquid channel 111 and an exhaust channel 112, the liquid channel 111 is communicated with the exhaust channel 112, the liquid channel 111 is provided with a valve core 210 and a first spring 220, and the exhaust channel 112 is provided with an exhaust plug 310 and a second spring 320; the elastic pressure of the first spring 220 is greater than the elastic pressure of the second spring 320, the vent plug 310 cooperates with the second spring 320 to vent or stop water, and the valve core 210 cooperates with the first spring 220 to prevent backflow or water.

Specifically, the utility model discloses can install on the exhaust pipeline of needs, combine fig. 3, when having gas in the pipeline, gas flow in liquid channel 111, the elastic pressure of first spring 220 and second spring 320 is greater than gas pressure, and case 210 and drain plug 310 can't be pushed open, and gas is blockked by case 210, can only discharge along exhaust passage 112, realizes carminative function; referring to fig. 4, in the process of introducing liquid into the liquid passage 111, at the beginning, the liquid pressure is greater than the elastic pressure of the second spring 320 and less than the elastic pressure of the first spring 220, the vent plug 310 moves upward to block the vent passage 112, and the liquid is blocked by the vent plug 310 and the valve element 210 at the same time, so as to achieve the water stopping function.

Further, referring to fig. 3, in general, the valve core 210 blocks the liquid passage 111 under the action of the first spring 220, and the liquid on the right side of the valve core 210 is blocked by the valve core 210 and cannot flow back, and at this time, the valve core 210 plays a role in preventing backflow; meanwhile, the gas on the left side of the valve element 210 is blocked by the valve element 210 and can be discharged only from the exhaust passage 112. Referring to fig. 4, when liquid is introduced into the liquid passage 111, the valve element 210 is pushed open, the first spring 220 is compressed, the valve element 210 cannot block at this time, and the liquid can pass through the valve element 210, thereby achieving the water passing function of the valve element 210.

It will be appreciated that, with reference to fig. 3, the air bleed water stop valve further comprises an air bleed connector 410, the air bleed connector 410 being threadably connected to the valve seat 110, the air bleed connector 410 being provided with a through hole 411, the through hole 411 being in communication with the air bleed passage 112.

Specifically, the exhaust joint 410 is screwed with the valve seat 110, so that the assembly and disassembly are convenient, and the exhaust joint 410 can be disassembled to perform maintenance or replacement operation when the exhaust plug 310 or the second spring 320 is maintained or replaced, which is simple and quick.

It can be understood that, referring to fig. 3 and 4, the upper end of the vent plug 310 is provided with a first inclined surface 311, the inner wall of the lower end of the through hole 411 is provided with a second inclined surface 411a, the first inclined surface 311 is separated from the second inclined surface 411a, the through hole 411 is in a venting state, the first inclined surface 311 is abutted against the second inclined surface 411a, and the through hole 411 is in a closing state.

Specifically, referring to fig. 3, in general, the vent plug 310 is kept away from the vent connector 410 by the second spring 320, and the first inclined surface 311 is separated from the second inclined surface 411a, the through hole 411 is not blocked, the through hole 411 is in a vent state, and the gas in the liquid channel 111 can flow into the vent channel 112 and be discharged to the outside air through the through hole 411.

Further, referring to fig. 4, when the liquid is introduced, the vent plug 310 moves upward under the action of the liquid pressure, the second spring 320 is compressed until the first inclined surface 311 abuts against the second inclined surface 411a, at this time, the vent plug 310 blocks the through hole 411, the through hole 411 is in a closed state, the liquid in the liquid channel 111 flows into the vent channel 112, and cannot flow into the through hole 411 any more, and the water stopping function is realized.

It will be appreciated that, with reference to fig. 3 and 5, the lower end of the vent plug 310 is provided with a support shelf 312, the support shelf 312 being contoured to match the shape of the inner wall of the vent passage 112.

Specifically, in conjunction with fig. 3 and 5, the support bracket 312 enables the vent plug 310 to remain stable during movement, enabling the vent plug 310 to move along a trajectory defined by the vent passage 112. In addition, the support frame 312 also functions to keep the air discharge passage 112 and the liquid passage 111 in communication at all times, so that the gas or liquid in the liquid passage 111 can flow into the air discharge passage 112.

It will be appreciated that with reference to fig. 3 and 4, a first O-ring 510 is provided between the exhaust fitting 410 and the valve seat 110 for sealing. Specifically, the first O-ring 510 mainly has the function of maintaining airtightness, so that the exhaust connector 410 is more tightly coupled to the valve seat 110, and gas or liquid cannot escape from the coupling gap.

It will be appreciated that, with reference to fig. 3, a second O-ring 520 is provided between the poppet 210 and the valve seat 110 for sealing. Specifically, the second O-ring 520 mainly has a function of maintaining airtightness, so that the valve body 210 blocks the liquid passage 111 more tightly by the first spring 220, gas in the liquid passage 111 is blocked by the valve body 210, or liquid having passed through the valve body 210 cannot flow back.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art.

Claims (6)

1. Exhaust water stop valve, its characterized in that includes:

the valve seat is provided with a liquid channel and an exhaust channel, the liquid channel is communicated with the exhaust channel, a valve core and a first spring are arranged in the liquid channel, and an exhaust plug and a second spring are arranged in the exhaust channel;

the first spring elastic pressure is greater than the second spring elastic pressure, the vent plug is matched with the second spring to be used for venting or stopping water, and the valve core is matched with the first spring to be used for preventing backflow or water flowing.

2. The exhaust water stop valve according to claim 1, further comprising an exhaust connector in threaded connection with the valve seat, the exhaust connector being provided with a through hole in communication with the exhaust passage.

3. The exhaust water stop valve according to claim 2, wherein a first inclined surface is arranged at the upper end of the exhaust plug, a second inclined surface is arranged on the inner wall of the lower end of the through hole, the first inclined surface is separated from the second inclined surface, the through hole is in an exhaust state, the first inclined surface is abutted against the second inclined surface, and the through hole is in a closed state.

4. The air discharge water stop valve according to claim 2, wherein a support frame is arranged at the lower end of the air discharge plug, and the shape of the support frame is matched with the shape of the inner wall of the air discharge channel.

5. The drain stop valve of claim 2, wherein a first O-ring is disposed between the drain connector and the valve seat for sealing.

6. The exhaust stop valve of claim 1, wherein a second O-ring is disposed between the valve core and the valve seat for sealing.

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