CN212338298U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN212338298U CN212338298U CN202020837953.4U CN202020837953U CN212338298U CN 212338298 U CN212338298 U CN 212338298U CN 202020837953 U CN202020837953 U CN 202020837953U CN 212338298 U CN212338298 U CN 212338298U
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- valve
- clack
- cover
- water inlet
- water outlet
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Abstract
The utility model belongs to the technical field of the valve, especially, relate to a check valve. A check valve comprises a valve body, a valve clack, a valve seat and a valve cover; a water inlet channel and a water outlet channel are respectively arranged on two sides of the valve body; the height of the water inlet channel is lower than that of the water outlet channel; the valve seat is arranged between the water inlet channel and the water outlet channel; the valve cover is arranged at the upper part of the valve body and used for plugging the valve body; the whole valve clack is in an inverted T shape and is arranged between the valve seat and the valve cover, and the valve clack is tightly pressed on the valve seat and used for controlling the opening and closing states of the water inlet channel and the water outlet channel; wherein, the middle part of the valve cover is provided with a through threaded hole; the bolt is arranged at the upper part of the valve cover and is in threaded connection with the threaded hole; the upper part of the valve clack is arranged in the threaded hole; and the upper part and the lower part of the elastic telescopic column are respectively connected with the valve cover and the valve clack.
Description
Technical Field
The utility model belongs to the technical field of the valve, especially, relate to a check valve.
Background
The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve.
In the conventional check valve, when the pressure of the medium flowing from the inlet is sufficient, the valve flap moves upward to be out of contact with the valve seat and opens, so that the gaseous medium flows out from the outlet, and when the medium flows in from the outlet, the valve flap is pressed tightly against the valve seat by the pressure to prevent the gas from flowing back. When the valve clack is pushed by pressure to move upwards, the upper surface of the valve clack can impact the valve cover to generate unfavorable vibration, meanwhile, the check valve needs to be opened and closed frequently, and the valve clack impacts the valve cover for many times to cause damage to the valve clack and the valve cover. In addition, the existing check valve cannot control the flow of the medium and cannot meet the increasing requirements of people.
Therefore, it is necessary to provide a technical means to solve the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
The utility model is realized in such a way, the check valve comprises a valve body, a valve clack, a valve seat and a valve cover;
a water inlet channel and a water outlet channel are respectively arranged on two sides of the valve body; the height of the water inlet channel is lower than that of the water outlet channel; the valve seat is arranged between the water inlet channel and the water outlet channel; the valve cover is arranged at the upper part of the valve body and used for plugging the valve body; the whole valve clack is in an inverted T shape and is arranged between the valve seat and the valve cover, and the valve clack is tightly pressed on the valve seat and used for controlling the opening and closing states of the water inlet channel and the water outlet channel;
wherein, the middle part of the valve cover is provided with a through threaded hole; the bolt is arranged at the upper part of the valve cover and is in threaded connection with the threaded hole; the upper part of the valve clack is arranged in the threaded hole; and the upper part and the lower part of the elastic telescopic column are respectively connected with the valve cover and the valve clack.
More specifically, the diameter of the upper part of the valve clack is smaller than that of the threaded hole.
More specifically, an elastic block is arranged between the lower part of the bolt and the upper part of the valve clack; the elastic block is connected with the bolt.
More specifically, the bottom of the valve clack is provided with an elastic buffer pad.
The utility model discloses a theory of operation: when a medium enters the valve body through the water inlet channel, the fluid pushes the valve clack open and flows out of the water outlet channel, the height of the valve clack which is pushed to rise is controlled by controlling the insertion depth of the bolt, and the flow is controlled to a certain extent; the setting of flexible post and elastic buffer pad for the valve clack constantly rises and when descending, plays the cushioning effect between valve clack and valve bonnet bottom and the disk seat, thereby can effectual protection valve gap, valve clack and disk seat, has improved the durability of check valve.
The utility model relates to a check valve, through reasonable structure setting, the durability is strong, the flow of the effectual control medium of ability simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a check valve according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
The preferred embodiment of the present invention is realized as such, and the check valve comprises a valve body 1, a valve flap 2, a valve seat 3 and a valve cover 4;
a water inlet channel 11 and a water outlet channel 12 are respectively arranged on two sides of the valve body 1; the height of the water inlet channel 11 is lower than that of the water outlet channel 12; the valve seat 3 is arranged between the water inlet channel 11 and the water outlet channel 12; the valve cover 4 is arranged on the upper part of the valve body 1 and used for plugging the valve body 1; the whole valve clack 2 is in an inverted T shape and is arranged between the valve seat 3 and the valve cover 4, and the valve clack 2 is tightly pressed on the valve seat 3 and used for controlling the opening and closing states of the water inlet channel 11 and the water outlet channel 12;
wherein, the middle part of the valve cover 4 is provided with a through threaded hole 5; a bolt 9 is arranged at the upper part of the valve cover 4 and is in threaded connection with the threaded hole 5; the upper part of the valve clack 2 is arranged in the threaded hole 5; and an elastic telescopic column 6 is respectively arranged above two sides of the valve clack 2, and the upper part and the lower part of the elastic telescopic column 6 are respectively connected with the valve cover 4 and the valve clack 2.
More specifically, the upper diameter of the valve flap 2 is smaller than the diameter of the threaded hole 5.
More specifically, an elastic block 7 is arranged between the lower part of the bolt 9 and the upper part of the valve clack 2; the elastic block 7 is connected with the bolt 9.
More specifically, the bottom of the valve clack 2 is provided with an elastic buffer cushion 8.
The utility model discloses a theory of operation: when a medium enters the valve body 1 through the water inlet channel 11, the fluid pushes the valve clack 2 away and flows out of the water outlet channel 12, the inserting depth of the bolt 9 is controlled, so that the height of the valve clack 2 which is pushed to rise is controlled, the flow rate is controlled to a certain degree, and meanwhile, the arrangement of the elastic block 7 prevents the upper part of the valve clack 2 from impacting the lower part of the bolt 9 when the valve clack rises to cause damage; the setting of flexible post 6 and elastic buffer pad 8 for valve clack 2 is when constantly rising and decline, plays the cushioning effect between valve clack 2 and valve gap 4 bottom and the disk seat 3, thereby can effectual protection valve gap 4, valve clack 2 and disk seat 3, improved the durability of check valve.
The utility model relates to a check valve, through reasonable structure setting, the durability is strong, the flow of the effectual control medium of ability simultaneously.
The above description is only for the preferred embodiment of the present invention, and the structure is not limited to the above-mentioned shape, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A check valve, characterized by: the check valve comprises a valve body, a valve clack, a valve seat and a valve cover;
a water inlet channel and a water outlet channel are respectively arranged on two sides of the valve body; the height of the water inlet channel is lower than that of the water outlet channel; the valve seat is arranged between the water inlet channel and the water outlet channel; the valve cover is arranged at the upper part of the valve body and used for plugging the valve body; the whole valve clack is in an inverted T shape and is arranged between the valve seat and the valve cover, and the valve clack is tightly pressed on the valve seat and used for controlling the opening and closing states of the water inlet channel and the water outlet channel;
wherein, the middle part of the valve cover is provided with a through threaded hole; the bolt is arranged at the upper part of the valve cover and is in threaded connection with the threaded hole; the upper part of the valve clack is arranged in the threaded hole; and the upper part and the lower part of the elastic telescopic column are respectively connected with the valve cover and the valve clack.
2. The check valve of claim 1, wherein: the diameter of the upper part of the valve clack is smaller than that of the threaded hole.
3. The check valve of claim 1, wherein: an elastic block is arranged between the lower part of the bolt and the upper part of the valve clack; the elastic block is connected with the bolt.
4. The check valve of claim 1, wherein: an elastic buffer cushion is arranged at the bottom of the valve clack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837953.4U CN212338298U (en) | 2020-05-19 | 2020-05-19 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837953.4U CN212338298U (en) | 2020-05-19 | 2020-05-19 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212338298U true CN212338298U (en) | 2021-01-12 |
Family
ID=74083417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020837953.4U Active CN212338298U (en) | 2020-05-19 | 2020-05-19 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212338298U (en) |
-
2020
- 2020-05-19 CN CN202020837953.4U patent/CN212338298U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |