CN215487836U - Water-saving check valve - Google Patents
Water-saving check valve Download PDFInfo
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- CN215487836U CN215487836U CN202022979394.3U CN202022979394U CN215487836U CN 215487836 U CN215487836 U CN 215487836U CN 202022979394 U CN202022979394 U CN 202022979394U CN 215487836 U CN215487836 U CN 215487836U
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Abstract
The present invention provides a water saving check valve, comprising: the valve comprises a valve body, a valve core and a water-saving core; the water-saving core is fixedly arranged in the valve body and is provided with a first water outlet channel and a second water outlet channel which are mutually independent; the valve core is movably matched with the water-saving core and moves between a first position and a second position along the axial direction of the valve body under the action of the high and low water pressure; when the water pressure is high, the valve core is located at a first position and closes the first water outlet channel; when the water pressure is low, the valve core is located at the second position and opens the first water outlet channel; the second water outlet channel is in a normally open state. The water-saving check valve can meet the requirements of low pressure and large flow.
Description
Technical Field
The utility model relates to a fitting of a water outlet device, in particular to a check valve.
Background
The water-saving check valve on the market not only has the function of preventing the water way from flowing reversely, but also has the advantages of reducing the water flow and saving water resources. When the water-saving check valve is used, when the water pressure is lower, the water flow of the water-saving check valve is lower; when the water pressure is increased, the water flow of the water-saving check valve is synchronously increased, namely the water flow is in proportion to the water pressure under the normal condition. Therefore, the water-saving check valve on the market has the defect of unstable flow, and is not suitable for being used in occasions requiring stable flow. Particularly, in some low water pressure environments, such as the top layer of a building, because the water pressure in the water path is low, the water flow of the water-saving check valve is small at the moment, and the use requirement cannot be met at all.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem of providing a water-saving check valve to meet the requirements of low pressure and large flow.
In order to solve the above technical problem, the present invention provides a water saving check valve, comprising: the valve comprises a valve body, a valve core and a water-saving core;
the water-saving core is fixedly arranged in the valve body and is provided with a first water outlet channel and a second water outlet channel which are mutually independent; the valve core is movably matched with the water-saving core and moves between a first position and a second position along the axial direction of the valve body under the action of the high and low water pressure;
when the water pressure is high, the valve core is located at a first position and closes the first water outlet channel; when the water pressure is low, the valve core is located at the second position and opens the first water outlet channel; the second water outlet channel is in a normally open state.
In a preferred embodiment: the water-saving core is provided with a channel movably connected with the valve core at the axis; the water-saving core is provided with the first water outlet channel outside the side wall of the channel.
In a preferred embodiment: when the valve core moves to the first position, one side of the valve core, which faces the water-saving core, is abutted against the water inlet end of the first water outlet channel.
In a preferred embodiment: the second water outlet channel is positioned outside the side wall of the first water outlet channel.
In a preferred embodiment: the valve core is located at the first position, and the return spring accumulates elastic return force.
The present invention also provides a water saving check valve comprising: the valve comprises a valve body, a valve core and a water-saving core;
the water-saving core is fixedly arranged in the valve body and is provided with a second water outlet channel; the valve core is movably matched with the water-saving core and moves between a first position and a second position along the axial direction of the valve body under the action of the high and low water pressure; a first water outlet channel is formed between the side wall of the valve core and the water-saving core;
when the water pressure is high, the valve core is located at a first position and closes the first water outlet channel; when the water pressure is low, the valve core is located at the second position and opens the first water outlet channel; the second water outlet channel is in a normally open state.
In a preferred embodiment: the water-saving core is provided with a channel movably connected with the valve core at the axis; one end of the valve core is inserted into the channel, and the first water outlet channel is formed between the side wall of the inserted part and the inner wall of the channel.
In a preferred embodiment: when the valve core moves to the first position, one side of the valve core, which faces the water-saving core, is abutted against the water inlet end of the first water outlet channel.
In a preferred embodiment: the second water outlet channel is positioned outside the side wall of the channel.
In a preferred embodiment: the valve core is located at the first position, and the return spring accumulates elastic return force.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
the utility model provides a water-saving check valve, when water flow is under an ultralow pressure condition, a valve core is not contacted with a water-saving core, an inner ring water channel and an outer ring water channel on the water-saving core are in an open state, the bottom of the valve core has lower pressure under the action of a cavity double pressure relief channel, and the valve core is easier to open, so that the check valve has higher flow and lower opening water pressure. Meanwhile, the increase of the water passing area under the cavity means the synchronous increase of the flow rate, and the requirement of low pressure and large flow rate is met. When water flow is in a high-pressure state, the valve body and the water-saving core are in a closed state when contacting with the first water outlet channel, the flow is controlled by the sealing ring and the water-saving core at the moment, the constant flow condition is met, and the valve body and the water-saving core are only controlled by the second water outlet channel, so that the stability is high.
The utility model provides a water-saving check valve, which reasonably utilizes the movement of a valve core for a check structure to realize the opening and closing of another water passage without additional parts, and has the advantages of low cost, simple structure and reliability.
Drawings
Fig. 1 is a perspective view of a check valve in preferred embodiment 1 of the present invention;
FIG. 2 is an exploded view of a check valve in the preferred embodiment 1 of the present invention;
FIG. 3 is a perspective view of a water saving core in the preferred embodiment 1 of the present invention;
FIG. 4 is a cross-sectional view of the valve cartridge in a first position in accordance with the preferred embodiment of the present invention 1;
FIG. 5 is a cross-sectional view of the valve cartridge in a second position in accordance with the preferred embodiment of the present invention 1;
FIG. 6 is a perspective view of the valve cartridge of the preferred embodiment 2 of the present invention;
FIG. 7 is a perspective view of a water saving core in the preferred embodiment 2 of the present invention;
FIG. 8 is a perspective view of the valve core and the water-saving core in combination according to the preferred embodiment 2 of the present invention;
fig. 9 is a sectional view of the valve core and the water-saving core in combination according to the preferred embodiment 2 of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements.
Example 1
Referring to fig. 1 to 5, the water saving check valve includes: the water-saving valve comprises a valve body 1, a valve core 2 and a water-saving core 3;
the water-saving core 3 is fixedly arranged in the valve body 1 and is provided with a first water outlet channel 31 and a second water outlet channel 32 which are mutually independent; the valve core 2 is movably matched with the water-saving core 3 and moves between a first position and a second position along the axial direction of the valve body 1 under the action of the high and low water pressure;
when the water pressure is high, the valve core 2 is located at the first position and closes the first water outlet channel 31; when the water pressure is low, the valve core 2 is located at the second position, and the first water outlet channel 31 is opened; the second water outlet channel 32 is in a normally open state.
When water flow is in an ultralow pressure condition, the valve core 2 is not in contact with the water-saving core 3, the first water outlet channel 31 and the second water outlet channel 32 on the water-saving core 3 are both in an open state, the bottom of the valve core 2 has lower pressure under the action of the double pressure relief channels of the cavity, and the valve core 2 is easier to open, so that the check valve has higher flow and lower opening water pressure. Meanwhile, the increase of the water passing area under the cavity means the synchronous increase of the flow rate, and the requirement of low pressure and large flow rate is met. When water flow is in a high-pressure state, the valve body 1 and the water-saving core 3 are in a closed state when contacting with the first water outlet channel 31, the flow is controlled by the sealing ring 4 and the water-saving core 3 at the moment, the constant flow condition is met, and the stability is high because the flow is controlled only by the second water outlet channel 32. Therefore, the valve core 2 for the non-return structure is reasonably applied to move, the opening and closing of the first water passing channel are realized, no additional part is needed, the cost is low, and the structure is simple and reliable.
In this embodiment, the water-saving core 3 is provided with a channel 33 at the axis, which is movably connected with the valve core 2; the first water outlet channel 31 is arranged outside the side wall of the channel 33 of the water-saving core 3.
When the valve core 2 moves to the first position, one side of the valve core 2 facing the water saving core 3 is abutted against the water inlet end of the first water outlet channel 31, so that the valve core 2 closes the first water outlet channel 31.
The second water outlet channel 32 is located outside the side wall of the first water outlet channel 31, so that the second water outlet channel 32 can be kept in a normally open state.
In the embodiment, in order to realize that the valve core 2 can be automatically reset from the first position to the second position after the water pressure of the valve core 2 is changed from high to low, the hydraulic control valve further comprises a reset spring 5, and when the valve core 2 is located at the first position, the reset spring 5 accumulates elastic reset force.
Example 2
Referring to fig. 6 to 9, the present embodiment is different from embodiment 1 in that: the first water outlet channel 31 in the embodiment 1 is separately arranged on the water-saving core 3, and is not related to the valve core 2. In this embodiment, the water-saving core 3 is only provided with a second water outlet channel 32 and a channel 33 movably connected with the valve core 2.
The first outlet passage 31 is formed by inserting one end of the valve element 2 into the passage 33 and between the side wall of the inserted portion and the inner wall of the passage 33. Therefore, the valve core 2 and the water-saving core 3 are matched together to form a first water outlet channel 31. The rest is the same as example 1 and will not be described again.
The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.
Claims (10)
1. The water-saving check valve is characterized by comprising: the valve comprises a valve body, a valve core and a water-saving core;
the water-saving core is fixedly arranged in the valve body and is provided with a first water outlet channel and a second water outlet channel which are mutually independent; the valve core is movably matched with the water-saving core and moves between a first position and a second position along the axial direction of the valve body under the action of the high and low water pressure;
when the water pressure is high, the valve core is located at a first position and closes the first water outlet channel; when the water pressure is low, the valve core is located at the second position and opens the first water outlet channel; the second water outlet channel is in a normally open state.
2. The water saving check valve according to claim 1, characterized in that: the water-saving core is provided with a channel movably connected with the valve core at the axis; the water-saving core is provided with the first water outlet channel outside the side wall of the channel.
3. The water saving check valve according to claim 2, characterized in that: when the valve core moves to the first position, one side of the valve core, which faces the water-saving core, is abutted against the water inlet end of the first water outlet channel.
4. The water saving check valve according to claim 1, characterized in that: the second water outlet channel is positioned outside the side wall of the first water outlet channel.
5. The water saving check valve according to any one of claims 1 to 4, wherein: the valve core is located at the first position, and the return spring accumulates elastic return force.
6. The water-saving check valve is characterized by comprising: the valve comprises a valve body, a valve core and a water-saving core;
the water-saving core is fixedly arranged in the valve body and is provided with a second water outlet channel; the valve core is movably matched with the water-saving core and moves between a first position and a second position along the axial direction of the valve body under the action of the high and low water pressure; a first water outlet channel is formed between the side wall of the valve core and the water-saving core;
when the water pressure is high, the valve core is located at a first position and closes the first water outlet channel; when the water pressure is low, the valve core is located at the second position and opens the first water outlet channel; the second water outlet channel is in a normally open state.
7. The water saving check valve of claim 6, wherein: the water-saving core is provided with a channel movably connected with the valve core at the axis; one end of the valve core is inserted into the channel, and the first water outlet channel is formed between the side wall of the inserted part and the inner wall of the channel.
8. The water saving check valve of claim 7, wherein: when the valve core moves to the first position, one side of the valve core, which faces the water-saving core, is abutted against the water inlet end of the first water outlet channel.
9. The water saving check valve of claim 6, wherein: the second water outlet channel is positioned outside the side wall of the channel.
10. The water saving check valve according to any one of claims 6 to 9, characterized in that: the valve core is located at the first position, and the return spring accumulates elastic return force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022979394.3U CN215487836U (en) | 2020-12-10 | 2020-12-10 | Water-saving check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022979394.3U CN215487836U (en) | 2020-12-10 | 2020-12-10 | Water-saving check valve |
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| Publication Number | Publication Date |
|---|---|
| CN215487836U true CN215487836U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022979394.3U Active CN215487836U (en) | 2020-12-10 | 2020-12-10 | Water-saving check valve |
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| CN (1) | CN215487836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022121990A1 (en) * | 2020-12-10 | 2022-06-16 | 厦门松霖科技股份有限公司 | Water-saving check valve |
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2020
- 2020-12-10 CN CN202022979394.3U patent/CN215487836U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022121990A1 (en) * | 2020-12-10 | 2022-06-16 | 厦门松霖科技股份有限公司 | Water-saving check valve |
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