CN204387411U - A kind of Lift check valve - Google Patents
A kind of Lift check valve Download PDFInfo
- Publication number
- CN204387411U CN204387411U CN201420720518.8U CN201420720518U CN204387411U CN 204387411 U CN204387411 U CN 204387411U CN 201420720518 U CN201420720518 U CN 201420720518U CN 204387411 U CN204387411 U CN 204387411U
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- valve
- spring
- flap
- stem casing
- utility
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Abstract
The utility model discloses a kind of Lift check valve, comprise valve body, valve body comprises valve gap, two valve rods, flap, two valve stem casings, valve port, two valve rods are parallel to each other, valve gap is positioned at the top of valve body, valve stem casing is all fixedly connected with valve gap, spring is provided with in valve stem casing, one end of spring is fixedly connected with the top of valve stem casing, the other end of spring is free end, two valve rods and flap one-body molded, valve rod extend in valve stem casing, valve rod is positioned at below the free end of spring, valve port is positioned at below flap, the utility model provides a kind of working stability, valve seal is high, the simple Lift check valve of structure.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of Lift check valve.
Background technique
Lift check valve is mainly used on the pipeline of medium one-way flow, medium is only allowed to flow to a direction, to try to avert accidents, traditional lifting stops formula and returns valve and only have single valve rod and valve stem casing, also comprise spring, flap, there is flap in long-term keying movement process, produce position skew, cause the problem of valve leaks, have impact on the use of people.
Model utility content
The purpose of this utility model to overcome in existing product not enough, provides that a kind of working stability, valve seal are high, the simple Lift check valve of structure.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
A kind of Lift check valve of the present utility model, comprise valve body, valve body comprises valve gap, two valve rods, flap, two valve stem casings, valve ports, two valve rods are parallel to each other, valve gap is positioned at the top of valve body, valve stem casing is all fixedly connected with valve gap, spring is provided with in valve stem casing, one end of spring is fixedly connected with the top of valve stem casing, the other end of spring is free end, two valve rods and flap one-body molded, valve rod extend in valve stem casing, valve rod is positioned at below the free end of spring, and valve port is positioned at below flap.
The valve body be positioned at below valve port is hollow with the valve body be positioned at above valve port.
Valve stem casing is all positioned at the below of valve gap.
The beneficial effects of the utility model are as follows: utility model works is stablized, the utility model is provided with two valve stem casings, two valve rods are parallel to each other, valve rod and flap one-body molded, therefore flap can not all around rock, and therefore flap can not produce position skew in the long-term process that moves up and down, and efficiently solves the problem causing valve leaks, valve seal is high, and the utility model structure is simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Lift check valve of the utility model;
Fig. 2 is the sectional view of flap of the present utility model and valve rod;
Fig. 3 is the plan view of flap of the present utility model and valve rod.
Embodiment
Below in conjunction with Figure of description, the technical solution of the utility model is described further:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of Lift check valve, comprise valve body, valve body comprises valve gap 2, two valve rods, flap 3, two valve stem casings, valve ports 7, two valve rods are parallel to each other, valve gap 2 is positioned at the top of valve body, valve stem casing is all fixedly connected with valve gap 2, be provided with spring 5 in valve stem casing, one end of spring 5 is fixedly connected with the top of valve stem casing, and the other end of spring 5 is free end, two valve rods and flap 3 one-body molded, valve rod extend in valve stem casing, and valve rod is positioned at below the free end of spring 5, and valve port 7 is positioned at below flap 3.Two valve rods are respectively valve rod 41, valve rod 42, two valve stem casings are respectively valve stem casing 61, valve stem casing 62.The valve body 8 be positioned at below valve port is hollow with the valve body 9 be positioned at above valve port.Valve stem casing is all positioned at the below of valve gap 2.
Working principle: when medium flows from left to right, medium produces thrust upwards, and promote flap 3 and move upward and Compress Spring, opened by valve port 7, medium is flowed to the valve body 9 be positioned at above valve port from the valve body 8 be positioned at below valve port by valve port 7; When medium stops, spring 5 extends due to the disappearance of pressure medium, and flap 3 moves downward close port 7 under the elastic force and the Action of Gravity Field of self of spring 5.
Utility model works is stablized, and flap can not produce position skew in the long-term process that moves up and down, and effect solves the problem causing valve leaks, and valve seal is high, and the utility model structure is simple.
It should be noted that above what enumerate is only a kind of specific embodiment of the present utility model.Obviously, the utility model is not limited to above embodiment, can also have many distortion.
In a word, all distortion that those of ordinary skill in the art can directly derive from content disclosed in the utility model or associate, all should think protection domain of the present utility model.
Claims (3)
1. a Lift check valve, it is characterized in that, comprise valve body, described valve body comprises valve gap (2), two valve rods, flap (3), two valve stem casings, valve port (7), described two valve rods are parallel to each other, described valve gap (2) is positioned at the top of valve body, described valve stem casing is all fixedly connected with valve gap (2), spring (5) is provided with in described valve stem casing, one end of described spring (5) is fixedly connected with the top of valve stem casing, the other end of described spring (5) is free end, described two valve rods and flap (3) one-body molded, described valve rod extend in valve stem casing, described valve rod is positioned at below the free end of spring (5), described valve port (7) is positioned at flap (3) below.
2. a kind of Lift check valve according to claim 1, is characterized in that, described in be positioned at the valve body (8) below valve port and the valve body (9) that is positioned at above valve port for hollow.
3. a kind of Lift check valve according to claim 1, it is characterized in that, described valve stem casing is all positioned at the below of valve gap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420720518.8U CN204387411U (en) | 2014-11-26 | 2014-11-26 | A kind of Lift check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420720518.8U CN204387411U (en) | 2014-11-26 | 2014-11-26 | A kind of Lift check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387411U true CN204387411U (en) | 2015-06-10 |
Family
ID=53360133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420720518.8U Active CN204387411U (en) | 2014-11-26 | 2014-11-26 | A kind of Lift check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204387411U (en) |
-
2014
- 2014-11-26 CN CN201420720518.8U patent/CN204387411U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |