CN219263349U - Automatic drain valve - Google Patents
Automatic drain valve Download PDFInfo
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- CN219263349U CN219263349U CN202223278953.3U CN202223278953U CN219263349U CN 219263349 U CN219263349 U CN 219263349U CN 202223278953 U CN202223278953 U CN 202223278953U CN 219263349 U CN219263349 U CN 219263349U
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- valve body
- piston
- limit switch
- automatic drain
- drain valve
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Abstract
The utility model provides an automatic drain valve, which belongs to the technical field of valves and comprises a valve body, a filter screen, a piston column, a piston cover, a lifter, a sensor and a limit switch; the filter screen cover is connected at the top of valve body, and piston post and the inner wall sliding connection of valve body, and the piston lid sets up in the upper portion of piston post, and the piston lid is connected with the opening on valve body upper portion, and the riser is connected with the bottom of piston post, and the riser setting is in the inside of valve body, and limit switch is connected with the inner wall of valve body, and the sensor is connected with the surface of valve body. Through setting up the filter screen panel, realized the filtration function of liquid, prevent the automatic drain valve from blocking up, also do benefit to the secondary treatment of liquid; through setting up sensor, limit switch and riser, realize the accurate start stop of automatic drain valve, improved control accuracy.
Description
Technical Field
The utility model belongs to the technical field of valves, and particularly relates to an automatic drain valve.
Background
The drain valve is very important for daily life of people, and the drain valve is usually used for discharging sewage, but domestic sewage often contains impurities, residues, particles and other solids, so that the drain valve is easy to block, and secondary treatment after sewage discharge is not facilitated.
The lifting valve in the prior art generally has no filtering function, and the automatic opening and closing of the drain valve are realized by utilizing pressure difference, so that the control precision is not high.
The Chinese patent No. 2139109Y discloses an oil-water separation automatic drain valve, which comprises a valve body, a valve core, a protective cover and the like, wherein the valve body is provided with a liquid inlet hole and a tank returning hole, the horizontal plane of the lower end point of the tank returning hole is higher than that of the upper end point of the liquid inlet hole, the upper part of the valve body is provided with an upper cover with a hole, the lower surface of the upper cover is connected with a liquid suction pipe, a valve rod capable of moving up and down in the liquid suction pipe is arranged in the liquid suction pipe, the upper end of the valve rod is fixedly provided with a conical valve core, and the lower end of the valve rod is fixedly provided with a pontoon. When the water level in the oil storage tank exceeds the liquid inlet hole, the oil enters the valve body and enters the pontoon because the specific gravity of the water is greater than that of the oil, the gravity of the pontoon is greater than that of the oil, the pontoon is forced to drive the valve rod to descend, the valve core opens the hole, and the water enters the upper cover from the liquid outlet hole and finally is discharged from the outlet. The design utilizes the pressure difference of gravity and buoyancy to realize automatic opening and closing of the drain valve, and the control precision is not high.
Disclosure of Invention
The utility model provides an automatic drain valve aiming at the problems in the prior art, and the technical problem to be solved by the utility model is how to improve the control precision of the drain valve and realize the filtering function of liquid.
In order to solve the technical problems, the utility model provides an automatic drain valve which comprises a valve body, a filter screen, a piston column, a piston cover, a lifter, a sensor and a limit switch; the filter screen cover is connected at the top of valve body, and piston post and the inner wall sliding connection of valve body, and the piston lid sets up in the upper portion of piston post, and the piston lid is connected with the opening on valve body upper portion, and the riser is connected with the bottom of piston post, and the riser setting is in the inside of valve body, and limit switch is connected with the inner wall of valve body, and the sensor is connected with the surface of valve body.
Further, the limit switch comprises a first limit switch and a second limit switch, the first limit switch is arranged below the piston column, and the first limit switch is connected with the inner wall of the valve body; the second limit switch is arranged on one side of the piston column and is connected with the inner wall of the valve body. When the piston column is separated from the contact with the second limit switch, the lifting rod stops ascending, and the automatic drain valve starts to drain. When the piston rod is pressed to touch the first limit switch, the lifting rod stops descending, and the automatic drain valve is completed.
Further, the inside of valve body is provided with the step along circumference, and the piston post is connected with the upper surface of step, and first limit switch sets up the upper surface at the step.
Further, the lifter is arranged in a cavity surrounded by the steps.
Further, the lifter comprises a sliding rail and a lifting rod, the lifting rod is in sliding connection with the inside of the sliding rail, the upper surface of the sliding rail is connected with the lower surface of the piston column, and one end of the lifting rod is connected with the lower surface of the piston column.
Further, the upper part of the piston column is provided with liquid inlet holes along the circumferential direction.
Further, the number of the liquid inlet holes is four, and the included angle between the axes of the adjacent liquid inlet holes is 90 degrees.
Further, the lower part of the piston column is provided with a liquid outlet.
Further, a drain hole is arranged on the valve body.
Further, the sensor is a flow sensor. The axis of the flow sensor coincides with the axis of the drain hole, and the flow sensor can measure the flow of liquid discharged by the valve body. When the liquid flow in the sensor is zero or reaches a preset value, the automatic drain valve starts the lifting rod to descend, and the piston rod descends.
Further, the upper portion of the valve body is provided with an opening, the diameter of the opening is larger than that of the piston column, and the shape of the piston cover is matched with that of the opening.
Further, the filter screen cover is made of stainless steel.
Further, the valve body is made of stainless steel, carbon steel, aluminum alloy, titanium alloy or nickel-based alloy.
When the automatic drain valve is electrified, the lifting rod of the lifter slides upwards along the sliding rail to push the piston column to rise, and the piston cover also rises along with the lifting rod; when the piston column is separated from contact with the second limit switch, the lifting rod stops ascending; at the moment, the piston cover enters the filter screen cover, a gap is formed between the outer surface of the piston column and the opening of the valve body, the filter screen cover is communicated with the liquid channel in the piston column, the axis of the liquid outlet hole coincides with the axis of the drainage hole, and the automatic drainage valve is in a working state; after being filtered by the filter screen, the liquid enters a liquid channel in the piston column through a liquid inlet hole and is discharged through a liquid outlet hole, a drainage hole and a sensor; when the liquid flow in the sensor is zero or reaches a preset value, the automatic drain valve starts the lifting rod to descend, and the piston rod descends; when the piston rod is pressed to the first limit switch, the lifting rod stops descending, the automatic drain valve is completed, and the automatic drain valve is ready for the next liquid drain operation.
According to the automatic drain valve, the filter screen is arranged, so that the liquid filtering function is realized, the automatic drain valve is prevented from being blocked, and the secondary treatment of the liquid is facilitated; through setting up sensor, limit switch and riser, realize the accurate start stop of automatic drain valve, improved control accuracy.
Drawings
Fig. 1 is a front view of a drain valve of the present utility model.
Fig. 2 is a side view of a drain valve of the present utility model.
Fig. 3 is a schematic view showing an initial state of the drain valve according to the present utility model.
Fig. 4 is a schematic view showing an operation state of the drain valve according to the present utility model.
Fig. 5 is a top view of a drain valve of the present utility model.
Wherein, 1, the valve body; 2. filtering the net cover; 3. a piston column; 4. a piston cap; 5. a lifter; 6. a sensor; 7. a limit switch; 11. a drain hole; 31. a liquid inlet hole; 32. a liquid outlet hole; 51. a slide rail; 52. a lifting rod; 71. a first limit switch; 72. and a second limit switch.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
For a better understanding of the objects, structure and function of the present utility model, an automatic drain valve according to the present utility model will be described in further detail with reference to the accompanying drawings.
Example 1:
referring to fig. 1, an embodiment of the present utility model provides an automatic drain valve, which includes a valve body 1, a filter screen 2, a piston column 3, a piston cover 4, a lifter 5, a sensor 6, and a limit switch 7; the filter screen cover 2 is connected at the top of the valve body 1, the piston column 3 is in sliding connection with the inner wall of the valve body 1, the piston cover 4 is arranged on the upper portion of the piston column 3, the piston cover 4 is connected with the inner wall of the valve body 1, the lifter 5 is connected with the bottom of the piston column 3, the lifter 5 is arranged in the valve body 1, the limit switch 7 is connected with the inner wall of the valve body 1, and the sensor 6 is connected with the outer surface of the valve body 1.
Example 2:
referring to fig. 1, an embodiment of the present utility model provides an automatic drain valve, which includes a valve body 1, a filter screen 2, a piston column 3, a piston cover 4, a lifter 5, a sensor 6, and a limit switch 7; the filter screen cover 2 is connected at the top of the valve body 1, the piston column 3 is in sliding connection with the inner wall of the valve body 1, the piston cover 4 is arranged on the upper portion of the piston column 3, the piston cover 4 is connected with the inner wall of the valve body 1, the lifter 5 is connected with the bottom of the piston column 3, the lifter 5 is arranged in the valve body 1, the limit switch 7 is connected with the inner wall of the valve body 1, and the sensor 6 is connected with the outer surface of the valve body 1.
The present embodiment is different from the first embodiment in that:
as shown in fig. 3, the piston column 3 is provided with liquid inlet holes 31 along the circumferential direction, preferably, the number of the liquid inlet holes 31 is 4, as shown in fig. 5, the included angle between the axes of adjacent liquid inlet holes 31 is 90 degrees, and the liquid inlet holes 31 are formed at the upper part of the piston column 3.
The lower part of the piston column 3 is provided with a liquid outlet hole 32, the valve body 1 is provided with a drain hole 11, when the automatic drain valve is in an operating state, the liquid outlet hole 32 coincides with the axis of the drain hole 11, and liquid is discharged out of the valve body 1 through the liquid outlet hole 32 and the drain hole 11.
The upper part of the valve body 1 is provided with an opening, the diameter of which is larger than that of the piston column 3, and the shape of the piston cover 4 is matched with that of the opening.
Example 3:
referring to fig. 1, an embodiment of the present utility model provides an automatic drain valve, which includes a valve body 1, a filter screen 2, a piston column 3, a piston cover 4, a lifter 5, a sensor 6, and a limit switch 7; the filter screen cover 2 is connected at the top of the valve body 1, the piston column 3 is in sliding connection with the inner wall of the valve body 1, the piston cover 4 is arranged on the upper portion of the piston column 3, the piston cover 4 is connected with the inner wall of the valve body 1, the lifter 5 is connected with the bottom of the piston column 3, the lifter 5 is arranged in the valve body 1, the limit switch 7 is connected with the inner wall of the valve body 1, and the sensor 6 is connected with the outer surface of the valve body 1.
As shown in fig. 3, the piston column 3 is provided with liquid inlet holes 31 along the circumferential direction, preferably, the number of the liquid inlet holes 31 is 4, as shown in fig. 5, the included angle between the axes of adjacent liquid inlet holes 31 is 90 degrees, and the liquid inlet holes 31 are formed at the upper part of the piston column 3.
As shown in fig. 1 and 2, the lower part of the piston column 3 is provided with a liquid outlet hole 32, the valve body 1 is provided with a drain hole 11, when the automatic drain valve is in an operating state, the liquid outlet hole 32 coincides with the axis of the drain hole 11, and liquid is discharged out of the valve body 1 through the liquid outlet hole 32 and the drain hole 11.
The upper part of the valve body 1 is provided with an opening, the diameter of which is larger than that of the piston column 3, and the shape of the piston cover 4 is matched with that of the opening.
The present embodiment is different from the second embodiment in that:
as shown in fig. 2, the sensor 6 is a flow sensor, the axis of which coincides with the axis of the drain hole 11, and is capable of measuring the flow rate of the liquid discharged from the valve body 1.
The limit switch 7 comprises a first limit switch 71 and a second limit switch 72, the first limit switch 71 is arranged below the piston column 3, and the first limit switch 71 is connected with the inner wall of the valve body 1; the second limit switch 72 is disposed at one side of the piston post 3, and the second limit switch 72 is connected to the inner wall of the valve body 1.
The inside of the valve body 1 is provided with a step along the circumferential direction, the piston column 3 is connected with the upper surface of the step, and the first limit switch 71 is arranged on the upper surface of the step; the lifter 5 is disposed in the cavity surrounded by the steps.
The lifter 5 includes a slide rail 51 and a lifter 52, the lifter 52 is slidably connected to the inside of the slide rail 51, and one end of the lifter 52 is connected to the bottom of the piston column 3.
The working process of the automatic drain valve of this embodiment is as follows:
as shown in fig. 4, when the automatic drain valve is energized, the lifting rod 52 of the lifter 5 slides upward along the slide rail 51 to push the piston rod 3 upward, and the piston cover 4 also rises; when the piston rod 3 is out of contact with the second limit switch 72, the lifting rod 52 stops ascending; at this time, the piston cover 4 enters the filter screen 2, a gap is formed between the outer surface of the piston column 3 and the opening of the valve body 1, the filter screen 2 is communicated with the liquid channel in the piston column 3, the axis of the liquid outlet hole 32 coincides with the axis of the drain hole 11, and the automatic drain valve is in a working state; after being filtered by the filter screen 2, the liquid enters a liquid channel in the piston column 3 through a liquid inlet hole 31 and is discharged through a liquid outlet hole 32, a drain hole 11 and a sensor 6; when the liquid flow in the sensor 6 is zero or reaches a preset value, the automatic drain valve starts the lifting rod 52 to descend, and the piston column 3 descends; when the plunger rod 3 is pressed against the first limit switch 71, the lifting rod 52 stops descending, and the automatic drain valve is completed, and is ready for the next liquid drain operation.
According to the automatic drain valve, the filter screen 2 is arranged, so that the liquid filtering function is realized, the automatic drain valve is prevented from being blocked, and the secondary treatment of the liquid is facilitated; through setting up sensor 6, limit switch 7 and riser 5, realize the accurate start stop of automatic drain valve, improved control accuracy.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model are included in the protection scope of the present utility model.
Claims (10)
1. An automatic drain valve is characterized by comprising a valve body, a filter screen cover, a piston column, a piston cover, a lifter, a sensor and a limit switch; the filter screen cover is connected at the top of valve body, and piston post and the inner wall sliding connection of valve body, and the piston lid sets up in the upper portion of piston post, and the piston lid is connected with the opening on valve body upper portion, and the riser is connected with the bottom of piston post, and the riser setting is in the inside of valve body, and limit switch is connected with the inner wall of valve body, and the sensor is connected with the surface of valve body.
2. The automatic drain valve according to claim 1, wherein the limit switch comprises a first limit switch and a second limit switch, the first limit switch is disposed below the piston column, the first limit switch is connected to an inner wall of the valve body; the second limit switch is arranged on one side of the piston column and is connected with the inner wall of the valve body.
3. The automatic drain valve according to claim 2, wherein the valve body is provided with a step in an inner circumferential direction, the piston column is connected to an upper surface of the step, and the first limit switch is provided on the upper surface of the step.
4. The automatic drain valve according to claim 3, wherein the lifter is disposed in a cavity defined by the step.
5. The automatic drain valve according to claim 4, wherein the lifter includes a slide rail and a lifter rod, the lifter rod is slidably connected to an inside of the slide rail, an upper surface of the slide rail is connected to a lower surface of the piston rod, and an end of the lifter rod is connected to the lower surface of the piston rod.
6. The automatic drain valve according to claim 5, wherein the upper portion of the piston stem is provided with a liquid inlet hole in a circumferential direction.
7. The automatic drain valve of claim 6, wherein the number of liquid inlet holes is four, and the included angle between the axes of adjacent liquid inlet holes is 90 degrees.
8. The automatic drain valve according to claim 6, wherein the lower portion of the piston stem is provided with a liquid outlet hole.
9. The automatic drain valve according to claim 6, wherein the valve body is provided with a drain hole.
10. The automatic drain valve according to any one of claims 1-9, wherein the sensor is a flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223278953.3U CN219263349U (en) | 2022-12-07 | 2022-12-07 | Automatic drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223278953.3U CN219263349U (en) | 2022-12-07 | 2022-12-07 | Automatic drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219263349U true CN219263349U (en) | 2023-06-27 |
Family
ID=86858529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223278953.3U Active CN219263349U (en) | 2022-12-07 | 2022-12-07 | Automatic drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219263349U (en) |
-
2022
- 2022-12-07 CN CN202223278953.3U patent/CN219263349U/en active Active
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