CN210240673U - One-way valve - Google Patents
One-way valve Download PDFInfo
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- CN210240673U CN210240673U CN201920909916.7U CN201920909916U CN210240673U CN 210240673 U CN210240673 U CN 210240673U CN 201920909916 U CN201920909916 U CN 201920909916U CN 210240673 U CN210240673 U CN 210240673U
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- shell
- ball
- inner cavity
- compression spring
- way valve
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Abstract
The embodiment of the utility model discloses a check valve, including first casing, second casing, ball, compression spring and spring holder, first casing and second casing are sealed fixed each other, form the valve inner chamber of check valve, the valve inner chamber includes the cylindrical inner chamber that is located on the first casing and the semi-circular inner chamber that is located on the second casing, the spherical shape and the semi-circular inner chamber phase-match of ball, compression spring accommodates in cylindrical inner chamber, one end butt of compression spring is in the ball, the other end butt is in the spring holder, the spring holder is fixed in the mounting hole of first casing; the first shell is provided with a medium inflow channel, the axial direction of the medium inflow channel is tangent to the outer edge of one side of the ball, and the medium inflow channel extends into the cylindrical inner cavity and is staggered with the compression spring. In this way, the embodiment of the utility model provides a can adjust the opening pressure of liquid export through the position of external regulation spring holder in the casing.
Description
Technical Field
The embodiment of the utility model provides a valve technical field especially relates to a check valve.
Background
The function of the one-way valve, also called check valve or check valve, is that the fluid flows in from a specific water inlet end and flows out from a specific water outlet end, but the fluid cannot flow in the reverse direction. This characteristic of the check valve makes it widely used in the field of fluid control, and is commonly used in piping systems to prevent backflow or backflow of media (liquid, gas) flowing in the piping.
The spring type one-way valve jacks the valve core controlled by the spring by means of the pressure of the liquid, and after the pressure disappears, the spring force pushes the valve core to the inlet again to seal the liquid from flowing backwards. When the opening pressure of the liquid outlet needs to be adjusted, the opening pressure can be adjusted by adjusting the rigidity or the compression amount of the spring, and in the existing check valve, the spring is positioned in the medium flow passage, and no matter which mode is adopted, the check valve needs to be detached from the pipeline firstly, so that the check valve is complex in practical application.
In view of the above, there is a need for further improvements in existing check valves.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a main technical problem who solves provides a check valve, can be through the position of following outside adjusting spring seat in the casing, the opening pressure of adjusting liquid export.
In order to achieve the above object, the utility model discloses a technical scheme be: providing a one-way valve, which comprises a first shell, a second shell, a ball, a compression spring and a spring seat;
the first shell and the second shell are mutually sealed and fixed to form a valve inner cavity of the one-way valve, the valve inner cavity comprises a cylindrical inner cavity located on the first shell and a semicircular inner cavity located on the second shell, the spherical shape of the ball is matched with the semicircular inner cavity, the compression spring is accommodated in the cylindrical inner cavity, one end of the compression spring abuts against the ball, the other end of the compression spring abuts against the spring seat, and the spring seat is fixed in a mounting hole of the first shell;
the first shell is provided with a medium inflow channel, the second shell is provided with a medium outflow channel, the center line of the medium inflow channel and the center line of the medium outflow channel are not on the same straight line, and the axial direction of the medium inflow channel is tangent to the outer edge of one side of the ball; and the number of the first and second electrodes,
the medium inflow channel extends into the cylindrical inner cavity and is staggered with the compression spring.
Optionally, the outer side surface of the spring seat is provided with an external thread, an internal thread is arranged in the mounting hole of the first housing, and the spring seat is fixedly connected with the first housing through a thread.
Optionally, the bottom of the spring seat is provided with a force hole.
In an embodiment, the first casing is disposed at an edge of the cylindrical cavity, and the second casing is disposed at an edge of the semicircular cavity and provided with flange-shaped flanges, the flange-shaped flanges are provided with a plurality of positioning holes, and the first casing and the second casing are sealed and fixed to each other by fasteners penetrating through the positioning holes.
Optionally, the flange-shaped flange of the first housing and/or the flange-shaped flange of the second housing is provided with an annular groove, and the check valve further includes an O-ring accommodated in the annular groove.
In an embodiment, the check valve further includes a ball seat, the ball is received in the ball seat, a concave arc curved surface attached to the arc curved surface of the ball is provided on the ball seat, and one end of the compression spring abuts against the ball seat.
Optionally, the material of the ball comprises ceramic, glass or stainless steel, and the shape of the ball is solid or hollow.
The embodiment of the utility model provides a beneficial effect is: different from the prior art, the one-way valve of the embodiment of the utility model comprises a first shell, a second shell, a ball, a compression spring and a spring seat, wherein the first shell and the second shell are mutually sealed and fixed to form a valve inner cavity of the one-way valve, the valve inner cavity comprises a cylindrical inner cavity positioned on the first shell and a semicircular inner cavity positioned on the second shell, the spherical shape of the ball is matched with the semicircular inner cavity, the compression spring is accommodated in the cylindrical inner cavity, one end of the compression spring is abutted against the ball, the other end of the compression spring is abutted against the spring seat, and the spring seat is fixed in a mounting hole of the first shell; the medium inflow channel is arranged on the first shell, the axis direction of the medium inflow channel is tangent to the outer edge of one side of the ball, the medium inflow channel extends into the cylindrical inner cavity and is staggered with the compression spring, the position of the spring seat in the first shell can be adjusted from the outside, the length of the spring seat protruding into the valve inner cavity is changed, the opening pressure of the liquid outlet is adjusted, and the one-way valve does not need to be detached from a pipeline.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a three-dimensional structure view of a check valve according to an embodiment of the present invention;
fig. 2 is an exploded view of the check valve of the present invention;
fig. 3 is a cross-sectional view of the check valve of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" 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 be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-3, a check valve according to an embodiment of the present invention includes a first housing 10, a second housing 20, a ball 30, a ball seat 40, a compression spring 50, and a spring seat 60, wherein the first housing 10 and the second housing 20 are fixed to each other in a sealing manner to form a valve inner cavity of the check valve, and the ball 30, the ball seat 40, and the compression spring 50 are all accommodated in the valve inner cavity; the ball 30 is received in the ball seat 40, the ball seat 40 is provided with a concave arc curved surface which is attached to the arc curved surface of the ball 30, one end of the compression spring 50 abuts against the ball seat 40, the other end abuts against the spring seat 60, and the spring seat 60 is fixed in the mounting hole of the first housing 10.
The first housing 10 is provided with a medium inflow channel 11, the second housing 20 is provided with a medium outflow channel 21, the medium inflow channel 11 and the medium outflow channel 21 are respectively communicated with the inner cavity of the valve, the central line of the medium inflow channel 11 and the central line of the medium outflow channel 21 are not on the same straight line, and the axial direction of the medium inflow channel 11 is tangent to the outer edge 30 on one side of the ball.
The valve inner cavity comprises a cylindrical inner cavity positioned on the first shell 10 and a semicircular inner cavity positioned on the second shell 20, the medium inflow channel 11 extends into the cylindrical inner cavity, and the ball seat 40 and the compression spring 50 are both accommodated in the cylindrical inner cavity and staggered with the medium inflow channel 11; the spherical shape of the ball 30 is matched with the semicircular cavity on the second shell 20, when the liquid pressure in the cavity is lower than a set value, the arc curved surface of the ball 30 is tightly attached to the semicircular cavity on the second shell 20 under the thrust action of the compression spring 50, and the medium outflow channel 21 is closed.
When liquid with a certain speed is injected into the valve inner cavity through the medium inflow channel 11, a vortex is formed in the fluid in the valve inner cavity, because the axial direction of the medium inflow channel 11 is tangent to the ball 30, the ball 30 rotates under the action of the tangential force of the fluid, and along with the gradual increase of the fluid pressure in the valve inner cavity, the ball 30 overcomes the resistance of the compression spring 50 to be separated from the semicircular inner cavity on the second shell 20, and the liquid flows out through the medium outflow channel 21.
The material of the ball 30 may be ceramic, glass, stainless steel, or the like, and the shape of the ball 30 may be solid or hollow.
It will be appreciated that, in the case where the compression spring 50 determines the amount of compression of the compression spring 50 depending on the distance between the spring seat 60 and the ball seat 40, in the present embodiment, since the spring 50 is disposed offset from the medium inflow passage 11, the position of the spring seat 60 in the first housing 10 can be adjusted from the outside to change the length of the spring seat 60 protruding into the valve inner chamber, thereby adjusting the opening pressure of the liquid outlet without removing the check valve from the piping.
Under the condition that the length of the spring seat 60 protruding into the valve inner cavity cannot meet the adjusting requirement, the spring seat 60 can be taken out of the first shell 10, the compression spring 50 is replaced, and the rigidity of the compression spring 50 is changed.
In one embodiment, the outer side surface of the spring seat 60 is provided with an external thread, the mounting hole of the first housing 10 is provided with an internal thread (not shown), and the spring seat 60 is fixedly connected with the first housing 10 through the thread. For example, spring retainer 60 may be threaded further into first housing 10 when it is desired to increase the cracking pressure of the liquid outlet.
Alternatively, the bottom of spring seat 60 is provided with force application holes 61, for example, force application holes 61 may be hexagonal, cross-shaped, etc., and inserting a tool into force application holes 61 may easily and quickly screw spring seat 60 into or out of first housing 10.
In the above embodiment, the first casing 10 is provided with flange-shaped flanges at the edge of the cylindrical cavity and the second casing 20 is provided with a plurality of positioning holes at the edge of the semicircular cavity, and the first casing 10 and the second casing 20 can be fixed to each other in a sealing manner by sequentially passing through the positioning holes by using threaded fasteners such as screws and bolts.
Preferably, the flange-like flange of the first casing 10 and/or the flange-like flange of the second casing 20 are provided with an annular groove 12, the annular groove 12 is used for accommodating an O-ring, and the sealing performance between the first casing 10 and the second casing 20 is enhanced by disposing the O-ring between the first casing 10 and the second casing 20.
In the above embodiment, the ball 30 may be directly connected to one end of the compression spring 50 without providing the ball seat 40.
It should be noted that the preferred embodiments of the present invention are described in the specification and the drawings, but the present invention can be realized in many different forms, and is not limited to the embodiments described in the specification, and these embodiments are not provided as additional limitations to the present invention, and are provided for the purpose of making the understanding of the disclosure of the present invention more thorough and complete. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A check valve, characterized by comprising a first housing (10), a second housing (20), a ball (30), a compression spring (50), and a spring seat (60);
the first shell (10) and the second shell (20) are mutually fixed in a sealing manner to form a valve inner cavity of the one-way valve, the valve inner cavity comprises a cylindrical inner cavity located on the first shell (10) and a semicircular inner cavity located on the second shell (20), the spherical shape of the ball (30) is matched with that of the semicircular inner cavity, the compression spring (50) is accommodated in the cylindrical inner cavity, one end of the compression spring (50) abuts against the ball (30), the other end of the compression spring abuts against the spring seat (60), and the spring seat (60) is fixed in a mounting hole of the first shell (10);
the first shell (10) is provided with a medium inflow channel (11), the second shell (20) is provided with a medium outflow channel (21), the central line of the medium inflow channel (11) and the central line of the medium outflow channel (21) are not on the same straight line, and the axial direction of the medium inflow channel (11) is tangent to the outer edge of one side of the ball (30); and the number of the first and second electrodes,
the medium inflow channel (11) extends into the cylindrical interior space, offset from the compression spring (50).
2. The one-way valve of claim 1,
the outer side surface of the spring seat (60) is provided with an external thread, an internal thread is arranged in the mounting hole of the first shell (10), and the spring seat (60) is fixedly connected with the first shell (10) through the thread.
3. The one-way valve of claim 2,
the bottom of the spring seat (60) is provided with a force application hole (61).
4. The one-way valve according to any one of claims 1 to 3,
the edge of the cylindrical inner cavity of the first shell (10) and the edge of the semicircular inner cavity of the second shell (20) are both provided with flange-shaped flanges, the flange-shaped flanges are provided with a plurality of positioning holes, and the first shell (10) and the second shell (20) are mutually sealed and fixed through fasteners penetrating through the positioning holes.
5. The one-way valve of claim 4,
the flange-shaped flange of the first shell (10) and/or the flange-shaped flange of the second shell (20) are/is provided with an annular groove (12), and the one-way valve further comprises an O-shaped sealing ring accommodated in the annular groove (12).
6. The one-way valve of claim 1,
the check valve further comprises a ball seat (40), the ball (30) is connected with the ball seat (40), the ball seat (40) is provided with a concave arc curved surface attached to the arc curved surface of the ball (30), and one end of the compression spring (50) is abutted to the ball seat (40).
7. The one-way valve of claim 1,
the material of the ball (30) comprises ceramic, glass or stainless steel, and the ball (30) is solid or hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920909916.7U CN210240673U (en) | 2019-06-14 | 2019-06-14 | One-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920909916.7U CN210240673U (en) | 2019-06-14 | 2019-06-14 | One-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210240673U true CN210240673U (en) | 2020-04-03 |
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ID=69986107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920909916.7U Active CN210240673U (en) | 2019-06-14 | 2019-06-14 | One-way valve |
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| Country | Link |
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| CN (1) | CN210240673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220018A (en) * | 2019-06-14 | 2019-09-10 | 深圳市西啡科技有限公司 | A kind of check valve |
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2019
- 2019-06-14 CN CN201920909916.7U patent/CN210240673U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220018A (en) * | 2019-06-14 | 2019-09-10 | 深圳市西啡科技有限公司 | A kind of check valve |
| CN110220018B (en) * | 2019-06-14 | 2024-04-19 | 深圳市西啡科技有限公司 | One-way valve |
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