CN212055989U

CN212055989U - One-way valve

Info

Publication number: CN212055989U
Application number: CN201922168756.8U
Authority: CN
Inventors: 刘尊峰; 薛际; 张芸婷
Original assignee: Xiaowei Shanghai Biotechnology Co ltd
Current assignee: Xiaowei Shanghai Biotechnology Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-12-01
Anticipated expiration: 2029-12-06

Abstract

The utility model provides a one-way valve, which comprises a valve body and a valve block, wherein a first discharge hole is arranged on the valve body, a discharge part is arranged on the valve block, the first discharge hole and the discharge part form a fluid conveying channel, the discharge part can swing to one side far away from the valve body to discharge fluid, a convex point is arranged on the valve body corresponding to the discharge part, and the first discharge hole and the discharge part are arranged in a non-coaxial way; check valve, the cooperation through bump and discharge portion realizes the on-off control to fluid transfer passage, the fluid business turn over is smooth and easy, closed quick, tight, can prevent effectively that the fluid from taking place the backward flow, and has simple structure, simple to operate's advantage.

Description

One-way valve

Technical Field

The utility model relates to a fluid transport technical field particularly, relates to a check valve.

Background

The use of one-way valves is becoming more and more common in the market and in life today. The check valve is commonly called as a check valve, fluid can only flow along the water inlet, and the medium at the water outlet cannot flow back. Check valves are also known as check valves or check valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems. The one-way valve has the advantages of stable performance, corrosion resistance, good sealing performance, wide application range, long service life and the like, and is an advanced safety control valve in power stations, oil refining, chemical devices and instrument measuring pipelines. At present, some check valves are found in the production and use processes, and still have the problems of complex structure and easy backflow of fluid.

Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a check valve with a simple structure and capable of preventing the backflow of fluid.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be that the check valve structure is complicated, easily makes the fluid produce the problem of backward flow.

In order to solve the above problem, the technical scheme of the utility model is realized like this:

the utility model provides a check valve, check valve includes valve body and valve block, be equipped with first discharge hole on the valve body, be equipped with the exhaust portion on the valve block, first discharge hole with the exhaust portion constitutes fluid transfer passage, the exhaust portion can be to keeping away from valve body one side swing is in order to discharge the fluid, its characterized in that correspond on the valve body the position of exhaust portion sets up the bump, first discharge hole with the exhaust portion disalignment sets up. Check valve, the cooperation through bump and discharge portion realizes the on-off control to fluid transfer passage, the fluid business turn over is smooth and easy, closed quick, tight, can prevent effectively that the fluid from taking place the backward flow, and has simple structure, simple to operate's advantage.

Further, the discharge portion is provided with a second discharge hole at a position corresponding to the bump. The second discharge hole is arranged to form a fluid conveying channel in cooperation with the salient point and the first discharge hole, so that fluid can be better discharged.

Furthermore, the salient points are smaller than a semi-sphere. The salient points are smaller than the semi-sphere shape, so that the fluid flow is facilitated.

Furthermore, a reinforcing device is further arranged on the valve plate, and the reinforcing device is a reinforcing rib. Through setting up a plurality of strengthening ribs for the valve block with the valve body combines more closely, thereby has improved the stability of check valve.

Furthermore, a groove is further formed in the valve body and is formed in the periphery of the salient point. Through setting up the recess, caused the phenomenon of jam when having avoided the fluid to come out from first discharge hole, the fluid can stop at the recess earlier to the smoothness nature of check valve has been improved.

Furthermore, the check valve further comprises a valve cover and a valve seat, and the valve cover, the valve plate, the valve body and the valve seat are sequentially covered together. The valve cover, the valve plate, the valve body and the valve seat are sequentially covered together to form a complete one-way valve structure, so that the structure of the one-way valve becomes tight.

Furthermore, the valve cover comprises a valve cover body, one side of the valve cover body is provided with a protruding part, and the other side of the valve cover body is provided with an output pipe. The valve cover is arranged to be matched with the valve plate and used for discharging fluid out of the one-way valve.

Furthermore, a third discharge hole is formed in the center of the valve cover body, and the third discharge hole is arranged in the center of the output pipe in a penetrating manner. The third exhaust port is configured to cooperate with the second exhaust port to define a fluid transfer passage for discharging fluid out of the one-way valve.

Furthermore, the valve seat comprises a valve seat body, one side of the valve seat body is provided with a connecting part, and the other side of the valve seat body is provided with an input pipe. The valve seat is provided for and for inputting fluid into the one-way valve.

Furthermore, a first input hole is formed in the center of the valve seat body, and the first input hole is arranged in the center of the input pipe in a penetrating mode. The first input aperture is configured to input fluid into the one-way valve.

Compared with the prior art, a check valve have following beneficial effect:

1) check valve, the cooperation through bump and discharge portion realizes the on-off control to fluid transfer passage, the fluid business turn over is smooth and easy, closed quick, tight, can prevent effectively that the fluid from taking place the backward flow, and has simple structure, simple to operate's advantage.

2) Check valve, setting up of strengthening rib makes valve block and valve body combine more inseparabler to the stability of check valve has been improved.

3) Check valve, the phenomenon of fluid blocking has been avoided in the setting of recess to the smoothness nature of check valve has been improved.

Drawings

Fig. 1 is a perspective view of a check valve according to an embodiment of the present invention;

fig. 2 is an exploded view of a check valve according to an embodiment of the present invention;

FIG. 3 is a perspective view of a valve plate according to an embodiment of the present invention;

fig. 4 is a perspective view of a valve body according to an embodiment of the present invention;

FIG. 5 is a bottom view of the valve plate and the valve body according to the embodiment of the present invention;

FIG. 6 is a cross-sectional view of a valve plate and a valve body according to an embodiment of the present invention;

FIG. 7 is an enlarged view of portion A of FIG. 6;

fig. 8 is a perspective view of a valve cover according to an embodiment of the present invention;

fig. 9 is a perspective view of a valve seat according to an embodiment of the present invention;

fig. 10 is a perspective view of a valve plate according to another embodiment of the present invention;

fig. 11 is an exploded view of a check valve according to another embodiment of the present invention;

fig. 12 is a perspective view of a valve body according to another embodiment of the present invention;

fig. 13 is an exploded view of a check valve according to another embodiment of the present invention;

fig. 14 is an exploded view of a check valve according to another embodiment of the present invention.

Description of reference numerals:

1-valve cover, 101-valve cover body, 102-boss, 103-third discharge hole, 104-output pipe, 2-valve plate, 201-discharge part, 202-second discharge hole, 203-reinforcing rib, 3-valve body, 301-salient point, 302-first discharge hole, 303-groove, 4-valve seat, 401-valve seat body, 402-connecting part, 403-first input hole and 404-input pipe.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Example 1

The utility model provides a check valve, as shown in fig. 1-4, check valve includes valve body 3 and valve block 2, be equipped with first exhaust hole 302 on the valve body 3, be equipped with discharge part 201 on the valve block 2, first exhaust hole 302 with discharge part 201 constitutes fluid transfer passage, discharge part 201 can be to keeping away from 3 one side swing of valve body is in order to discharge the fluid correspond on the valve body 3 discharge part 201's position sets up bump 301, first exhaust hole 302 with discharge part 201 disalignment sets up. Check valve, the cooperation through bump and discharge portion realizes the on-off control to fluid transfer passage, the fluid business turn over is smooth and easy, closed quick, tight, can prevent effectively that the fluid from taking place the backward flow, and has simple structure, simple to operate's advantage.

In particular, the fluid includes a liquid and a gas.

Specifically, the discharge portion 201 is provided with a second discharge hole 202 at a position corresponding to the bump 301. The second discharge hole is arranged to form a fluid conveying channel in cooperation with the salient point and the first discharge hole, so that fluid can be better discharged.

More specifically, as shown in fig. 2 to 6, the discharge portion 201 is disposed at the center of the valve sheet 2, correspondingly, the convex point 301 is disposed at the center of the valve body 3, and correspondingly, the second discharge hole 202 is disposed at the center of the discharge portion 201. That is, the center axis of the second discharge hole 202 and the center axis of the convex point 301 are aligned.

More specifically, as shown in fig. 6-7, the first discharge hole 302 is a circular hole. The first discharge hole 302 is provided beside the convex point 301, and the central axis of the first discharge hole 302 and the central axis of the second discharge hole 202 are not aligned. The first discharge hole is a round hole, so that the structure is simple, the production is convenient, and the fluid discharge is also facilitated.

Specifically, the bumps 301 are smaller than a semi-sphere. The salient points are arranged to be smaller than the semi-sphere shape, so that the flowing of the fluid is facilitated.

Specifically, the check valve further comprises a valve cover 1 and a valve seat 4, and the valve cover 1, the valve plate 2, the valve body 3 and the valve seat are covered together for 4 times. The valve cover, the valve plate, the valve body and the valve seat are sequentially covered together to form a complete one-way valve structure, so that the structure of the one-way valve becomes tight.

More specifically, as shown in fig. 8, the valve cap 1 includes a valve cap body 101, wherein a protrusion 102 is provided on one side of the valve cap body 101, and an output pipe 104 is provided on the other side of the valve cap body 101. The valve cover is arranged to be matched with the valve plate and used for discharging fluid out of the one-way valve.

More specifically, a third discharge hole 103 is provided in the center of the valve cover 101, and the third discharge hole 103 is provided to penetrate through the center of the delivery pipe 104. The third exhaust port is configured to cooperate with the second exhaust port to define a fluid transfer passage for discharging fluid out of the one-way valve.

More specifically, as shown in fig. 9, the valve seat 4 includes a valve seat body 401, a connecting portion 402 is provided on one side of the valve seat body 401, and an inlet pipe 404 is provided on the other side of the valve seat body 401. The valve seat is provided for and for inputting fluid into the one-way valve.

More specifically, a first input hole 403 is formed in the center of the valve seat body 401, and the first input hole 403 penetrates the center of the input pipe 404. The first input aperture is configured to input fluid into the one-way valve.

Specifically, the working principle is as follows: when power is supplied from the outside, the fluid enters the check valve from the first input hole 403 of the valve seat 4 and then flows through the first discharge hole 302 of the valve body 3, and the discharge portion 201 of the valve sheet 2 is subjected to pressure and swings to the side away from the valve body 3, thereby opening the fluid delivery channel, so that the fluid can be discharged through the fluid delivery channel. After the fluid is discharged through the discharge hole 202 of the discharge part 201, the discharge part 201 is restored to its original position, the fluid transfer passage is closed in cooperation with the convex point 301 of the valve body 3, and the discharged fluid is discharged out of the check valve through the third discharge hole 103 of the valve cover 1, thereby completing the one-way flow of the fluid.

The check valve realizes on-off control of the fluid conveying channel through the matching of the salient points and the discharge part, ensures that fluid can smoothly enter and exit, is closed quickly and tightly, can effectively prevent the fluid from flowing back, and has the advantages of simple structure and convenience in installation.

Example 2

Different from embodiment 1, as shown in fig. 10 and 11, specifically, a reinforcing device is further provided on the valve sheet 2, and the reinforcing device is a reinforcing rib 203.

More specifically, as shown in fig. 10 and 11, the reinforcing ribs 203 are provided in 3 numbers and uniformly distributed on the discharge portion 201. Through setting up a plurality of strengthening ribs 203 for valve block 2 with valve body 3 combines more closely, thereby has improved the stability of check valve.

The check valve of the embodiment realizes on-off control of the fluid conveying channel through the matching of the salient points and the discharge part, has smooth fluid inlet and outlet, is closed quickly and tightly, can effectively prevent the fluid from flowing back, and has the advantages of simple structure and convenient installation; the arrangement of the reinforcing ribs enables the valve plate and the valve body to be combined more tightly, so that the stability of the one-way valve is improved.

Example 3

Different from embodiment 1, as shown in fig. 12 and 13, specifically, the valve body 3 is further provided with a groove 303, and the groove 303 is provided around the convex point 301.

More specifically, as shown in fig. 12 and 13, the two grooves 303 are provided, communicate with the first discharge hole 302, and are respectively provided on both sides of the first discharge hole 302. Through setting up recess 303, caused the phenomenon of jam when having avoided the fluid to come out from first exhaust hole 302, the fluid can stop at recess 303 earlier to the smoothness nature of check valve has been improved.

The check valve of the embodiment realizes on-off control of the fluid conveying channel through the matching of the salient points and the discharge part, has smooth fluid inlet and outlet, is closed quickly and tightly, can effectively prevent the fluid from flowing back, and has the advantages of simple structure and convenient installation; the arrangement of the groove avoids the phenomenon of fluid blockage, so that the fluency of the one-way valve is improved.

Example 4

Different from embodiment 1, as shown in fig. 14, specifically, a reinforcing device is further provided on the valve sheet 2, and the reinforcing device is a reinforcing rib 203. The reinforcing ribs 203 are uniformly distributed on the discharge portion 201. Through setting up a plurality of strengthening ribs 203 for valve block 2 with valve body 3 combines more closely, thereby has improved the stability of check valve.

Specifically, the valve body 3 is further provided with a groove 303, and the groove 303 is formed around the salient point 301. The groove 303 communicates with the first discharge hole 302. Through setting up recess 303, caused the phenomenon of jam when having avoided the fluid to come out from first exhaust hole 302, the fluid can stop at recess 303 earlier to the smoothness nature of check valve has been improved.

The check valve of the embodiment realizes on-off control of the fluid conveying channel through the matching of the salient points and the discharge part, the fluid enters and exits, the closing is fast and tight, the backflow of the fluid can be effectively prevented, and the check valve has the advantages of simple structure and convenience in installation; the arrangement of the reinforcing ribs enables the valve plate and the valve body to be combined more tightly, so that the stability of the one-way valve is improved; the arrangement of the groove avoids the phenomenon of fluid blockage, so that the fluency of the one-way valve is improved.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. The utility model provides a check valve, check valve includes valve body (3) and valve block (2), be equipped with first exhaust hole (302) on valve body (3), be equipped with discharge portion (201) on valve block (2), first exhaust hole (302) with discharge portion (201) constitute fluid transfer passageway, discharge portion (201) can be to keeping away from valve body (3) one side swing is in order to discharge the fluid, its characterized in that correspond on valve body (3) the position of discharge portion (201) sets up bump (301), first exhaust hole (302) with discharge portion (201) disalignment sets up.

2. The non-return valve according to claim 1, characterized in that the discharge portion (201) is provided with a second discharge hole (202) at a corresponding position of the protruding point (301).

3. A non-return valve according to claim 1, characterised in that the raised point (301) is arranged to be less than hemispherical.

4. The check valve according to claim 1, characterized in that the valve plate (2) is further provided with a reinforcing device, and the reinforcing device is a reinforcing rib (203).

5. The non-return valve according to claim 1, characterized in that the valve body (3) is further provided with a groove (303), the groove (303) being provided around the boss (301).

6. The check valve according to claim 1, characterized in that, the check valve further comprises a valve cover (1) and a valve seat (4), the valve cover (1), the valve plate (2), the valve body (3) and the valve seat (4) are sequentially covered together.

7. A non-return valve according to claim 6, characterized in that the valve cover (1) comprises a valve cover body (101), the valve cover body (101) being provided with a boss (102) on one side and an outlet pipe (104) on the other side of the valve cover body (101).

8. The non-return valve according to claim 7, characterized in that a third outlet hole (103) is provided in the centre of the valve cover (101), said third outlet hole (103) being provided through the centre of the outlet pipe (104).

9. The non-return valve according to claim 6, characterized in that the valve seat (4) comprises a valve seat body (401), a connecting portion (402) being provided on one side of the valve seat body (401) and an inlet pipe (404) being provided on the other side of the valve seat body (401).

10. The non-return valve according to claim 9, characterized in that a first inlet hole (403) is provided in the center of the valve seat body (401), the first inlet hole (403) being provided through the center of the inlet pipe (404).