CN212480250U - Wafer check valve - Google Patents
Wafer check valve Download PDFInfo
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- CN212480250U CN212480250U CN202021080649.6U CN202021080649U CN212480250U CN 212480250 U CN212480250 U CN 212480250U CN 202021080649 U CN202021080649 U CN 202021080649U CN 212480250 U CN212480250 U CN 212480250U
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Abstract
The utility model discloses a wafer formula check valve, include: the valve body comprises a liquid inlet end and a liquid outlet end, wherein the liquid inlet end and the liquid outlet end are respectively arranged at two ends of the valve body; the spring seat is fixedly arranged on the inner wall of the valve body between the valve body and the liquid outlet end, and an outlet for liquid to flow out is formed in the spring seat; the spring sleeve rod arranged on the valve clack device can move up and down and is arranged on the spring seat, and the valve clack body arranged on the valve clack device is fixedly arranged at the bottom end of the spring sleeve rod; the spring is sleeved on the spring loop bar, one end of the spring is fixedly arranged on the valve clack body, and the other end of the spring is fixedly arranged at the lower end of the spring seat; and the valve clack baffle seat is fixedly arranged on the valve body and the inner wall of the valve body between the liquid inlet ends. Wafer formula check valve effect is stable, simple structure, and spring non-deformable is convenient for communicate in the pipeline.
Description
Technical Field
The utility model belongs to the technical field of pipeline liquid control, especially, relate to a wafer formula check valve.
Background
The function of the check valve is to allow the medium to flow in one direction only, but to prevent the flow in the opposite direction. Typically such valves are self-actuating, with the flap opening under the pressure of a fluid flowing in one direction; when the fluid flows in the opposite direction, the valve flap is combined by the fluid pressure and the self-weight of the valve flap to act on the valve seat, thereby cutting off the flow. Wafer check valves are typical check valves.
For example, chinese utility model patent application No. CN201120044874.9 discloses a wafer check valve, which includes a valve body, a valve flap, a spring, and a valve cover; the novel wafer check valve body is a hollow concave cylindrical I-shaped body, through holes are formed in two ends of the hollow concave cylindrical I-shaped body, the through hole at the inlet end is a through hole, an O-shaped convex table surface at the upper end of the through hole is matched and sealed with the bottom surface of the valve clack, and the size of the outlet end is matched with the valve cover; the novel wafer check valve has the advantages that the valve clack is a hollow concave frustum body with a small lower part and a large upper part, medium circulation holes are formed in the periphery of the side wall, the bottom surface is a plane sealing surface, the top surface of the frustum is slightly smaller than the inner cavity of the valve body, the valve clack can only do reciprocating translational motion in the inner cavity of the valve body, and the inner side of the top surface of the frustum is provided with a spring limiting-spring seat of; the novel wafer check valve spring is positioned between the valve cover and the valve clack, and controls the valve clack to do reciprocating translational motion in the valve body; the novel wafer check valve cover is a concave cylinder, through holes are formed in two ends of the valve cover, the size of the valve cover is matched with the outlet end of the valve body, an inner hexagonal through hole is formed in the upper end of the valve cover, the sectional area of the inner hexagonal through hole is larger than that of a through-diameter hole, the inner hexagonal through hole is used for the check valve outlet, and the lower end face and the side wall of the inner hexagonal form another spring limiting spring seat for controlling the spring to perform reciprocating translational motion.
The above prior art discloses a wafer type check valve, and the above prior art has the following technical problems in the practical application process:
1. the spring is easy to deform, and the valve clack is inclined, so that fluid entering the valve body is uneven;
2. no limiting device is arranged on the spring and the valve clack, so that the spring is compressed in a large range, and the service life of the spring is shortened.
Based on the technical problems in the prior art, the inventor provides a wafer check valve in combination with years of research and development experience.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a to the not enough of prior art, provide a wafer formula check valve.
The utility model adopts the following technical proposal:
a wafer-style check valve comprising:
the valve body comprises a liquid inlet end and a liquid outlet end, wherein the liquid inlet end and the liquid outlet end are respectively arranged at two ends of the valve body;
the spring seat is fixedly arranged on the inner wall of the valve body, and an outlet for liquid to flow out is formed in the spring seat;
the spring sleeve rod arranged on the valve clack device can move up and down and is arranged on the spring seat, and the valve clack body arranged on the valve clack device is fixedly arranged at the bottom end of the spring sleeve rod;
the spring is sleeved on the spring loop bar, one end of the spring is fixedly arranged on the valve clack body, and the other end of the spring is fixedly arranged at the lower end of the spring seat;
and the valve clack baffle seat is fixedly arranged on the inner wall of the valve body and can be in sealing fit with the valve clack body.
Furthermore, the liquid outlet end is connected with a first connector, and a first flange plate is fixedly arranged on the first connector.
Further, the liquid inlet end is connected with a second connector, and a second flange plate is fixedly arranged on the second connector.
Furthermore, a first spring fixing seat is fixedly arranged at the top end of the valve clack body, one end of the spring is fixedly arranged on the first spring fixing seat, a second spring fixing seat is fixedly arranged at the bottom end of the spring seat, and the other end of the spring is fixedly arranged on the second spring fixing seat.
Furthermore, the lower end of the spring seat is fixedly provided with a limiting sleeve, and the limiting sleeve is arranged on the outer side of the spring.
Furthermore, a sealing sleeve is arranged between the spring sleeve rod and the spring seat, wherein the sealing sleeve is fixedly arranged on the upper surface of the spring seat, and the sealing sleeve is sleeved on the part, extending out of the spring seat, of the spring sleeve rod.
Further, a third sealing ring is arranged between the spring sleeve rod and the spring seat, and the third sealing ring is arranged in the spring seat.
Further, a pushing groove is formed in the valve clack body.
The utility model has the advantages that:
1. wafer formula check valve, through the cooperation setting of valve body, spring holder, valve clack device, spring and valve clack fender seat, make wafer formula check valve effect is stable, simple structure.
2. Wafer formula check valve, through setting up first spring fixing base, second spring fixing base, spring loop pole and spacing sleeve pipe, make spring non-deformable has prolonged the life of spring to can make the flexible angle of valve clack unanimous relatively.
3. Wafer formula check valve, through setting up first joint, first ring flange, second joint and second ring flange, make the check valve is convenient for feed through in the pipeline.
Drawings
Fig. 1 is a schematic cross-sectional view of a wafer check valve according to the present invention;
FIG. 2 is a schematic cross-sectional view of a valve flap device according to the present invention;
fig. 3 is a schematic structural diagram of the middle spring seat of the present invention.
In the figure: 1-valve body, 11-liquid inlet end, 12-liquid outlet end, 13-first sealing ring, 14-second sealing ring, 2-spring seat, 21-second spring fixing seat, 22-limiting sleeve, 23-third sealing ring, 24-outflow port, 3-valve clack device, 31-spring sleeve rod, 311-sealing sleeve, 32-valve clack body, 321-first spring fixing seat, 322-pushing groove, 4-spring, 5-valve clack blocking seat, 6-first joint, 61-first flange, 7-second joint and 71-second flange.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the following detailed description of the present invention is made in conjunction with the accompanying drawings and the detailed description, it is to be noted that the features of the embodiments and examples of the present invention may be combined with each other without conflict.
Example 1
As shown in fig. 1, a wafer-type check valve includes:
the valve body 1 comprises a liquid inlet end 11 and a liquid outlet end 12, wherein the liquid inlet end 11 and the liquid outlet end 12 are respectively arranged at two ends of the valve body 1;
the spring seat 2 is fixedly arranged on the inner wall of the valve body 1 between the valve body 1 and the liquid outlet end 11, and an outlet 24 for liquid to flow out is formed in the spring seat 2;
the valve clack device 3 is provided with a spring sleeve rod 31 which can move up and down and is arranged on the spring seat 2, and a valve clack body 32 which is arranged on the valve clack device 3 is fixedly arranged at the bottom end of the spring sleeve rod 31;
the spring 4 is sleeved on the spring loop bar 31, one end of the spring 4 is fixedly arranged on the valve clack body 32, the other end of the spring 4 is fixedly arranged at the lower end of the spring seat 2, the spring loop bar 31 moves up and down on the spring seat 2 along with the compression and extension of the spring 4, the relative distance between the valve clack body 32 and the spring seat 2 is changed, and the opening and closing of the valve clack body 32 are realized;
the valve clack baffle seat 5 is fixedly arranged on the inner wall of the valve body 1 and can be in sealing fit with the valve clack body 32, when the compression force of the spring 4 enables the valve clack body 32 and the valve clack baffle seat 5 to be in sealing fit, no liquid pushes the valve clack body 32, when the pushing force of the liquid to the valve clack body 32 overcomes the compression force of the spring 4, the valve clack body 32 moves to be separated from the state of sealing fit with the valve clack baffle seat 5, and the liquid flows into the valve body 1 through a middle hole of the valve clack baffle seat 5.
The valve body 1 and the valve clack baffle seat 5 are made of cast iron, and the spring seat 2 and the valve clack device 3 are made of stainless steel.
In this embodiment, it connects 6 to go out liquid end 12, the fixed first ring flange 61 that is provided with on the first joint 6, wherein, the reducing is realized to first joint 6's main effect, makes the check valve can be suitable for the pipe connection of different pipe diameters, first joint 6 through threaded connection in go out liquid end 12, for guaranteeing the leakproofness, first joint 6 with go out and still be equipped with first sealing washer 13 between the liquid end 12. The first sealing ring 13 is arranged on the end surface of the liquid outlet end 12, and when the first joint 6 is matched with the liquid outlet end 12 through threads, the first sealing ring 13 on the end surface of the liquid outlet end 12 is pressed tightly to realize sealing.
The feed liquor end 11 is connected with second joint 7, the fixed second ring flange 71 that is provided with on the second joint 7, the main effect that the second connects 7 is the realization reducing, makes the check valve can be suitable for the pipe connection of different pipe diameters, second joint 7 pass through threaded connection in feed liquor end 11, for guaranteeing the leakproofness, second joint 7 with still be equipped with second sealing washer 14 between the feed liquor end 11. The second sealing ring 14 is arranged on the end face of the liquid inlet end 11, and when the second joint 7 is matched with the liquid inlet end 11 through threads, the second sealing ring 14 on the end face of the liquid inlet end 11 is pressed tightly to realize sealing.
The first sealing ring 13 and the second sealing ring 14 are NBR nitrile rubber sealing rings.
In this embodiment, as shown in fig. 2, a first spring fixing seat 321 is fixedly disposed at the top end of the valve flap body 32, one end of the spring 4 is fixedly disposed on the first spring fixing seat 321, a second spring fixing seat 21 is fixedly disposed at the bottom end of the spring seat 2, and the other end of the spring 4 is fixedly disposed on the second spring fixing seat 21, so that the spring 4 can output stable compression and expansion forces through the positioning action of the first spring fixing seat 321 and the second spring fixing seat 21 on the spring 4.
The lower end of the spring seat 2 is further fixedly provided with a limiting sleeve 22, the limiting sleeve 22 is arranged on the outer side of the spring 4 and a gap is reserved between the limiting sleeve 22 and the spring 4, in the embodiment, the limiting sleeve 22 has two functions, one of the two functions is used for limiting deformation of the spring 4 in a compression process so as to protect the spring, and the other function is used for limiting a moving distance of the valve clack body 32 when the valve clack body is opened so as to enable the flow of liquid flowing into the valve clack baffle seat 5 to be relatively stable.
A sealing sleeve 311 is arranged between the spring sleeve rod 31 and the spring seat 2, wherein the sealing sleeve 311 is fixedly arranged on the upper surface of the spring seat 2, and the sealing sleeve 311 is sleeved on the part of the spring sleeve rod 31 extending out of the spring seat 2.
A third sealing ring 23 is arranged between the spring loop bar 31 and the spring seat 2, the third sealing ring 23 is arranged in the spring seat 2, and an annular groove for placing the third sealing ring 23 is arranged in a loop bar hole of the spring seat 2.
In this embodiment, the sealing sleeve 311 and the third sealing ring 23 function to prevent the liquid flowing through the check valve from entering the space between the spring seat 2 and the spring rod 31 between the sealing sleeve 311 and the third sealing ring 23, so that the sealing sleeve 311 and the third sealing ring 23 compress the spring rod 31, and in the practical application process, the compression process can also right the spring rod 31.
The sealing sleeve 311 and the third sealing ring 23 are made of NBR nitrile rubber.
The valve body 32 is provided with a pushing groove 322 for facilitating the liquid flow to push the valve body 32, wherein the pushing groove 322 is bowl-shaped.
In the present exemplary embodiment, as shown in fig. 3, the spring plate 2 is provided with two outflow openings 24 for the outflow of liquid, and the spring plate is fixedly arranged in the interior of the valve body 1 by welding.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A wafer check valve, comprising:
the valve body comprises a liquid inlet end and a liquid outlet end, wherein the liquid inlet end and the liquid outlet end are respectively arranged at two ends of the valve body;
the spring seat is fixedly arranged on the inner wall of the valve body, and an outlet for liquid to flow out is formed in the spring seat;
the spring sleeve rod arranged on the valve clack device can move up and down and is arranged on the spring seat, and the valve clack body arranged on the valve clack device is fixedly arranged at the bottom end of the spring sleeve rod;
the spring is sleeved on the spring loop bar, one end of the spring is fixedly arranged on the valve clack body, and the other end of the spring is fixedly arranged at the lower end of the spring seat;
the valve clack keeps off the seat, fixed setting be in the valve body with on the valve body inner wall between the feed liquor end to can sealing fit in the valve clack body.
2. The wafer check valve of claim 1, wherein a first joint is connected to the outlet end, and a first flange is fixedly disposed on the first joint.
3. The wafer check valve of claim 2, wherein a second connector is connected to the inlet end, and a second flange is fixedly disposed on the second connector.
4. The wafer type check valve according to claim 1, wherein a first spring holder is fixedly disposed at a top end of the valve flap body, one end of the spring is fixedly disposed on the first spring holder, a second spring holder is fixedly disposed at a bottom end of the spring holder, and the other end of the spring is fixedly disposed on the second spring holder.
5. The wafer type check valve according to claim 1, wherein a limiting sleeve is further fixedly disposed at a lower end of the spring seat, and the limiting sleeve is disposed at an outer side of the spring.
6. The wafer check valve of claim 1, wherein a sealing sleeve is disposed between the spring rod and the spring seat, wherein the sealing sleeve is fixedly disposed on an upper surface of the spring seat, and the sealing sleeve is disposed on a portion of the spring rod extending out of the spring seat.
7. The wafer check valve of claim 1, wherein a third seal is disposed between the spring stem and the spring seat, the third seal being disposed in the spring seat.
8. The wafer check valve of claim 1, wherein the body of the flapper defines a pushing recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021080649.6U CN212480250U (en) | 2020-06-12 | 2020-06-12 | Wafer check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021080649.6U CN212480250U (en) | 2020-06-12 | 2020-06-12 | Wafer check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212480250U true CN212480250U (en) | 2021-02-05 |
Family
ID=74416509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021080649.6U Active CN212480250U (en) | 2020-06-12 | 2020-06-12 | Wafer check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212480250U (en) |
-
2020
- 2020-06-12 CN CN202021080649.6U patent/CN212480250U/en active Active
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