CN212564561U - Check valve - Google Patents
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- CN212564561U CN212564561U CN202021317029.XU CN202021317029U CN212564561U CN 212564561 U CN212564561 U CN 212564561U CN 202021317029 U CN202021317029 U CN 202021317029U CN 212564561 U CN212564561 U CN 212564561U
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- valve
- valve core
- water
- valve body
- guide post
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Abstract
The utility model discloses a check valve, which comprises a valve body, a valve core, an elastic part and a valve seat, wherein one end of the valve body is provided with a water inlet, the other end of the valve body is provided with a water outlet, the lower part of the valve body is provided with the valve seat, and the elastic part is connected between the valve core and the valve seat; an annular sealing surface is arranged inside the valve body, and a guide column is arranged at a water inlet inside the valve body along the axis direction; the valve core is internally provided with a guide groove matched with the guide post. The valve core is directly guided with the middle of the valve body through the shaft hole, so that the valve is not influenced by assembly tolerance and the sealing stability is improved. When flowing water flows into the check valve from the water pipe, the flowing water gives an impact force to the valve core, the impact force forces the valve core to overcome the spring force and move downwards along the guide groove, and at the moment, the flowing water flows out of the base through the valve core and opens the valve core to pass water. When water pressure does not exist in the positive direction, the spring props the valve core to be attached to the sealing surface of the valve body. Therefore, water cannot flow in the reverse direction, and the valve core is sealed more firmly when the reverse water pressure is higher.
Description
Technical Field
The utility model relates to a check valve.
Background
In the daily life process, handheld gondola water faucet, shower nozzle, pull tap etc. are placed easily in flourishing water container, for preventing open water backward flow water supply pipe, and can produce certain negative pressure, and this kind of negative pressure can lead to a resorption effect of gaseous in the shower nozzle, and the dirty water of the container of flourishing water can be inhaled back like this, brings a great deal of inconvenience for the user. Therefore, a one-way outflow device is needed to avoid polluting the pipeline.
Patent 2014207397046, patent 201320404699.9 and patent 201320472135.9 all disclose a check valve, but this kind of check valve core, the direction setting of case on the base, and the sealing washer of case can not be fine laminating the sealed face of valve body under the low pressure condition, and sealed unstable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a check valve to prior art's is not enough to solve among the daily life user and carrying out the dirty water that the in-process of shower takes place easily because of the technical problem of negative pressure backward flow using the shower nozzle.
In order to solve the technical problems, the following technical scheme is adopted:
the check valve comprises a valve body, a valve core, an elastic part and a valve seat, wherein a water inlet is formed in one end of the valve body, a water outlet is formed in the other end of the valve body, a water passing channel is formed between the water inlet and the water outlet, the valve core is movably arranged in the valve body and can move between an opening position and a closing position to open and close a water channel, the valve seat is arranged at the lower part of the valve body, and the elastic part is connected between the valve core and the valve seat; an annular sealing surface is arranged inside the valve body, and a guide column is arranged at a water inlet inside the valve body along the axis direction; and a guide groove matched with the guide post is arranged in the valve core.
Further, the valve core comprises a valve core body and a sealing ring, a sealing groove is formed in the outer ring of the valve core body, and the sealing ring is arranged in the sealing groove.
Further, the elastic member is a spring.
Furthermore, the terminal surface of water inlet is provided with a plurality of inlet openings, be provided with the rib between the inlet opening, the rib is connected the guide post.
Furthermore, the guide post comprises a cylindrical guide post, and a cylindrical guide groove matched with the cylindrical guide post is arranged in the valve core.
Furthermore, the guide post comprises a cylindrical guide post, and a polygonal guide groove or a special-shaped guide groove matched with the cylindrical guide post is arranged in the valve core.
Furthermore, the guide way is including cylindrical guide way, valve body inside is provided with the polygon guide post or the dysmorphism guide post that cooperate with cylindrical guide way.
Further, the water outlet is provided with a flow controller.
Due to the adoption of the technical scheme, the method has the following beneficial effects:
the utility model discloses a check valve, this check valve simple structure, scientific facility, with strong points, convenient to use, low cost, easy operation easily promotes. The valve core is directly guided with the middle of the valve body through the shaft hole, so that the valve is not influenced by assembly tolerance and the sealing stability is improved. When flowing water flows into the check valve from the water pipe, the flowing water gives an impact force to the valve core, the impact force forces the valve core to overcome the spring force and move downwards along the guide groove, and at the moment, the flowing water flows out of the base through the valve core and opens the valve core to pass water. When water pressure does not exist in the positive direction, the spring props the valve core to be attached to the sealing surface of the valve body. Therefore, water cannot flow in the reverse direction, and the valve core is sealed more firmly when the reverse water pressure is higher. The check valve has the advantages that the check valve has the one-way conduction function, dirty water is prevented from flowing into the water pipe from the water passing cover, and the sealing stability is improved.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
FIG. 1 is a schematic view of an exploded structure of a check valve of the present invention;
FIG. 2-1 is a schematic structural view of the check valve in a closed state according to the present invention;
fig. 2-2 is a schematic structural view of the check valve in an open state according to the present invention;
FIG. 3 is a schematic structural view of a valve body with a cylindrical guide post according to the present invention;
fig. 4 is a schematic structural view of the present invention from another angle in fig. 3;
FIG. 5 is a schematic sectional view of the valve body of the present invention;
fig. 6 is a schematic structural diagram of the valve core body of the present invention;
fig. 7 is a schematic structural view of the present invention from another angle in fig. 6;
FIG. 8 is a schematic structural view of a valve seat according to the present invention;
fig. 9 is a schematic structural view of the present invention from another angle in fig. 8;
FIG. 10 is a schematic cross-sectional view of the valve seat of the present invention;
FIG. 11 is a schematic structural view of a valve body with a polygonal guide post according to the present invention;
FIG. 12 is a schematic structural view of a valve body with a shaped guide post according to the present invention;
fig. 13 is a schematic structural view of a valve core body with a polygonal guide groove according to the present invention;
fig. 14 is a schematic structural diagram of a valve core body with a special-shaped guide groove according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example 1
As shown in fig. 1 to 10, the check valve includes a valve body 1, a valve core 2, an elastic member 3 and a valve seat 4, wherein one end of the valve body 1 is provided with a water inlet 11, the other end of the valve body 1 is provided with a water outlet 12, a water passage 13 is formed between the water inlet 11 and the water outlet 12, the valve core 2 is movably disposed in the valve body 1 and can move between an open position and a closed position to open and close a water path, the valve seat 4 is disposed at the lower part of the valve body 1, and the elastic member 3 is connected between the valve core 2 and the valve seat 4; an annular sealing surface 5 is arranged inside the valve body 1, and the annular sealing surface 5 is a sealing element or a sealing ring. A guide column 14 is arranged at the water inlet in the valve body 1 along the axial direction; the valve core 2 is internally provided with a guide groove 15 matched with the guide post 14.
Further, the valve core 2 includes a valve core body 21 and a sealing ring 22, a sealing groove is provided on an outer ring of the valve core body 21, and the sealing ring 22 is provided in the sealing groove.
Further, the elastic member 3 is a spring.
Further, the terminal surface of water inlet 11 is provided with a plurality of inlet openings, be provided with rib 16 between the inlet opening, rib 16 connects guide post 14.
Further, the guide post 14 includes a cylindrical guide post 141, and a cylindrical guide groove 151, which is matched with the cylindrical guide post 141, is provided inside the valve core 2.
Referring to fig. 2, the valve core 2 is directly guided with the middle of the valve body 1 through the shaft hole, so that the valve is not influenced by assembly tolerance and the sealing stability is improved. The positive water pressure can overcome the spring force, when the flowing water flows into the check valve from the water pipe, the flowing water can give an impact force to the valve core 2, the impact force can force the valve core 2 to overcome the spring force and move downwards along the guide groove 15, and the flowing water can flow out of the base through the valve core 2 at the moment, so that the valve core 2 is opened to lead water. When water pressure does not exist in the positive direction, the spring props against the valve core 2 and is attached to the sealing surface of the valve body 1. Therefore, water cannot flow in the reverse direction, and the larger the reverse water pressure is, the more firmly the valve element 2 is sealed. The check valve has the advantages that the check valve has the one-way conduction function, dirty water is prevented from flowing into the water pipe from the water passing cover, and the sealing stability is improved.
Example 2 differs from example 1 in that:
further, referring to fig. 13, the guide post 14 includes a cylindrical guide post 141, and a polygonal guide groove 152 that is matched with the cylindrical guide post 141 is formed in the valve body 2.
Example 3 differs from example 1 in that:
further, referring to fig. 14, the guide post 14 includes a cylindrical guide post 141, and a profiled guide groove 153 matched with the cylindrical guide post 141 is formed in the valve core 2.
Example 4 is different from example 1 in that:
further, referring to fig. 11, the guide groove 15 includes a cylindrical guide groove 151, and the valve body 1 is provided with a polygonal guide post 142 inside to match with the cylindrical guide groove 151.
Example 5 differs from example 1 in that:
further, referring to fig. 12, the guide groove 15 includes a cylindrical guide groove 151, and a special-shaped guide post 143 is disposed inside the valve body 1 and matches with the cylindrical guide groove 151.
Example 3 differs from examples 1, 2, 3, 4, and 5 in that: the water outlet 12 is provided with a flow controller.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.
Claims (8)
1. The check valve comprises a valve body, a valve core, an elastic part and a valve seat, wherein a water inlet is formed in one end of the valve body, a water outlet is formed in the other end of the valve body, a water passing channel is formed between the water inlet and the water outlet, the valve core is movably arranged in the valve body and can move between an opening position and a closing position to open and close a water channel, the valve seat is arranged at the lower part of the valve body, and the elastic part is connected between the valve core and the valve seat; the method is characterized in that: an annular sealing surface is arranged inside the valve body, and a guide column is arranged at a water inlet inside the valve body along the axis direction; and a guide groove matched with the guide post is arranged in the valve core.
2. The non-return valve according to claim 1, characterized in that: the valve core comprises a valve core body and a sealing ring, a sealing groove is formed in the outer ring of the valve core body, and the sealing ring is arranged in the sealing groove.
3. The non-return valve according to claim 1, characterized in that: the elastic piece is a spring.
4. The non-return valve according to claim 1, characterized in that: the terminal surface of water inlet is provided with a plurality of inlet openings, be provided with the rib between the inlet opening, the rib is connected the guide post.
5. The non-return valve according to any one of claims 1 to 4, characterized in that: the guide post comprises a cylindrical guide post, and a cylindrical guide groove matched with the cylindrical guide post is formed in the valve core.
6. The non-return valve according to any one of claims 1 to 4, characterized in that: the guide post comprises a cylindrical guide post, and a polygonal guide groove or a special-shaped guide groove matched with the cylindrical guide post is arranged in the valve core.
7. The non-return valve according to any one of claims 1 to 4, characterized in that: the guide way is including cylindrical guide way, valve body inside is provided with the polygon guide post or the dysmorphism guide post that cooperate with cylindrical guide way.
8. The non-return valve according to claim 1, characterized in that: the water outlet is provided with a flow controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021317029.XU CN212564561U (en) | 2020-07-07 | 2020-07-07 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021317029.XU CN212564561U (en) | 2020-07-07 | 2020-07-07 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212564561U true CN212564561U (en) | 2021-02-19 |
Family
ID=74621147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021317029.XU Active CN212564561U (en) | 2020-07-07 | 2020-07-07 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212564561U (en) |
-
2020
- 2020-07-07 CN CN202021317029.XU patent/CN212564561U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230619 Address after: 361000 room 402A, Tongchuang building, No. 2561, Binhai West Avenue, science and Technology Innovation Park, torch high tech Zone, Xiamen, Fujian Patentee after: XIAMEN WATER NYMPH SANITARY TECHNOLOGY Co.,Ltd. Address before: Room 1126, 100302, Xiamen City, Fujian Province Patentee before: Li Huoliang |
|
| TR01 | Transfer of patent right |