CN211315242U - Valve seat integrated guide type ball check valve - Google Patents
Valve seat integrated guide type ball check valve Download PDFInfo
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- CN211315242U CN211315242U CN201922301234.0U CN201922301234U CN211315242U CN 211315242 U CN211315242 U CN 211315242U CN 201922301234 U CN201922301234 U CN 201922301234U CN 211315242 U CN211315242 U CN 211315242U
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Abstract
The utility model discloses an integrative direction formula ball-type check valve of disk seat, which comprises a valve body, the bottom of valve body is equipped with the inlet, and the top is equipped with the liquid outlet, be equipped with the intercommunication in the valve body the medium runner of inlet, liquid outlet. And a valve core assembly for opening or closing the medium flow passage is arranged in the medium flow passage and comprises a guide valve seat and a ball body which are matched for use. The guide valve seat comprises a valve seat body, and a guide ring plate integrally formed with the valve seat body is arranged on one side, close to the liquid outlet, of the valve seat body. The ball is positioned in the guide ring plate and can freely rotate under the medium pressure difference and move up and down along the guide ring plate. When the ball body moves to the lowest end, the ball body can be in sealing abutting connection with the valve seat body to close the medium flow passage. The utility model discloses a global face seal structure has avoided because of sealed fixed spheroid local position that leads to receives the problem that medium erodees wearing and tearing for a long time, and then has prolonged spheroid life.
Description
Technical Field
The utility model relates to a check valve field especially relates to an integrative direction formula ball-type check valve of disk seat.
Background
The valve is a control part of a pipeline fluid conveying system, is used for changing the section of a passage and the flowing direction of a medium, and has the functions of diversion, cut-off, throttling, check, flow splitting or overflow pressure relief and the like. The ball-type check valve is one of valves, and is used for preventing media entering the valve from flowing backwards and playing a role in automatic interception. The existing ball check valve with the caliber of 2 inches or more is generally provided with a guide handle or a guide step on the ball body, and the movement of the ball body is guided by the guide handle or the guide step to open or close the medium flow passage. However, when the medium flow passage is closed, the sealing surface of the ball (i.e. the contact part of the ball and the valve seat) is fixed and unchanged, and the sealing surface is very easy to erode and wear under the long-term scouring of the medium, so that the interception performance of the ball is reduced, and the service life of the ball is shortened.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model aims to provide an integrative direction formula ball-type check valve of disk seat adopts global face seal structure, has avoided because of the fixed problem that leads to spheroid local position to receive medium scouring wear for a long time of sealed face, and then has prolonged spheroid life.
In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides an integrative direction formula ball-type check valve of disk seat, includes the valve body, the bottom of valve body is equipped with the inlet, and the top is equipped with the liquid outlet, be equipped with the intercommunication in the valve body the medium runner of inlet, liquid outlet. And a valve core assembly for opening or closing the medium flow passage is arranged in the medium flow passage and comprises a guide valve seat and a ball body which are matched for use. The guide valve seat comprises a valve seat body, and a guide ring plate integrally formed with the valve seat body is arranged on one side, close to the liquid outlet, of the valve seat body. The ball is positioned in the guide ring plate and can freely rotate under the medium pressure difference and move up and down along the guide ring plate. When the ball body moves to the lowest end, the ball body can be in sealing abutting connection with the valve seat body to close the medium flow passage.
In the initial state, the ball is positioned at the lowest end, and the medium flow passage is in a closed state. When a medium enters the valve body from the liquid inlet, the ball body freely rotates under the action of medium pressure and moves towards the liquid outlet along the guide ring plate, at the moment, the ball body and the valve seat body displace, the medium flow channel is opened, and the medium can flow towards the liquid outlet along a gap between the ball body and the valve seat body; after the medium is conveyed, the ball falls back under the action of self weight and is in sealing butt joint with the valve seat body, and the medium flow channel is closed; when the medium flows back, the ball is tightly pressed on the valve seat body under the action of pressure to inhibit the medium from flowing back. When the medium is conveyed, the ball is in a free rotation state, so when the ball falls back, the sealing position between the ball and the valve seat body is not fixed.
The utility model discloses an effective effect lies in: the opening or closing of the medium flow channel is realized through the matching of the valve seat body and the ball body; the guide ring plate which is integrally formed with the valve seat body is arranged on the valve seat body, so that the guide effect on the moving direction of the ball body is realized, the structure of a guide part is simplified, and the assembly of each part of the valve body is simpler and more convenient; when the spheroid removed in the direction ring inboard, the spheroid can free rotation under medium pressure's impact for spheroid optional position homoenergetic and the sealed butt of disk seat body when closing the medium runner, and then avoided the problem because of the spheroid is received medium to erode wearing and tearing for a long time with disk seat body seal position fixed the spheroid local position that leads to, has prolonged spheroidal life indirectly.
Further, a pair of limiting plates used for limiting the sphere to move upwards are symmetrically arranged at the upper end of the guide ring plate, and arc surfaces matched with the sphere are arranged on the inner sides of the limiting plates. The limiting of the moving range of the ball body is achieved through the limiting plate, when the ball body moves upwards to abut against the limiting plate, the ball body can still rotate under the action of medium pressure due to the arrangement of the arc surface.
Further, a limiting cross rod used for limiting the moving range of the ball body is horizontally arranged in the valve body close to one side of the liquid outlet, and the lower end face of the limiting cross rod can abut against the top of the ball body. The limitation of the moving range of the ball body is realized through the arrangement of the limiting cross rod.
Furthermore, a first annular groove and a second annular groove which are in a step-shaped structure are arranged in the valve body close to one side of the liquid inlet. The first ring groove is located below the second ring groove, and the radial size of the first ring groove is smaller than that of the second ring groove. The guide ring plate is located in the second ring groove, and the bottom of the guide ring plate is fixed in the second ring groove through bolts. The valve seat body is limited and embedded in the first annular groove. The limiting and fixing of the guide ring plate and the valve seat body are realized through the arrangement of the first annular groove and the second annular groove.
Further, the bottom of disk seat body is equipped with the bar burr, it is provided with graphite sealing ring to seal between bar burr and the annular. Can seal up the gap between valve body and the annular through the graphite sealing washer, the setting up of rethread bar burr makes sealed effect better.
Further, the valve body comprises an upper valve body and a lower valve body which are arranged up and down and fixedly connected, and the medium flow channel is arranged in the upper valve body and the lower valve body together; and a sealing ring for preventing medium leakage is hermetically arranged at the joint of the upper valve body and the lower valve body.
Further, the surface of the sphere is coated with a hard alloy layer.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
In the figure:
1-a valve body; 11-an upper valve body; 111-a liquid outlet; 12-a lower valve body; 121-liquid inlet; 13-a media flow channel; 2-a pilot valve seat; 21-a valve seat body; 22-a guide ring plate; 3-a sphere; 4-a limiting plate; 41-arc surface; 5-sealing ring; 6-a graphite sealing ring; 7-fiber cross bar.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Example one
Referring to fig. 1, the utility model discloses an integrative direction formula ball-type check valve of disk seat, including valve body 1, valve body 1 includes upper valve body 11, lower valve body 12 that set up from top to bottom, the bottom of lower valve body 12 is equipped with inlet 121, the top of upper valve body is equipped with liquid outlet 111. The upper valve body 11 and the lower valve body 12 are provided with a medium flow channel 13 which is communicated with the liquid inlet 121 and the liquid outlet 111. A valve core assembly for opening or closing the medium flow passage 13 is arranged in the medium flow passage 13, and the valve core assembly comprises a guide valve seat 2 and a ball 3 which are matched for use. The guide valve seat 2 comprises a valve seat body 21, and a guide ring plate 22 formed integrally with the valve seat body 21 is arranged on one side of the valve seat body 21 close to the liquid outlet 111. The balls 3 are located in a guide ring plate 22, which can rotate freely under the pressure difference of the medium and move up and down along the guide ring plate 22. When the ball 3 moves to the lowermost end, the ball 3 can be in sealing abutment against the valve seat body 21 to close the medium flow passage 13.
In the initial state, the ball 3 is located at the lowermost end, and the medium flow path 13 is in the closed state. When a medium enters the valve body 1 from the liquid inlet 121, the ball 3 freely rotates under the action of medium pressure and moves towards the liquid outlet 111 along the guide ring plate 22, at the moment, the ball 3 and the valve seat body 21 displace, the medium flow channel 13 is opened, and the medium can flow towards the liquid outlet 111 along a gap between the ball 3 and the valve seat body 21; after the medium is conveyed, the ball 3 falls back under the action of self weight and is in sealing and abutting joint with the valve seat body 21, and the medium flow passage 13 is closed; when the medium flows back, the ball 3 is tightly pressed against the valve seat body 216 under pressure, and the medium is inhibited from flowing back. When the medium is fed, since the ball 3 is in a freely rotating state, the sealing position between the ball 3 and the valve seat body 21 is not fixed when the ball 3 falls back.
The guide ring plate 22 integrally formed with the valve seat body 21 not only realizes the guide effect on the moving direction of the ball body 3, but also simplifies the structure of a guide part, so that the valve body is more convenient to assemble; when spheroid 3 removed in guide ring board 22, spheroid 3 can free rotation under medium pressure's impact, and then makes spheroid 3 move down in order to close medium runner 13 when spheroid 3 optional part homoenergetic with the sealed butt of valve seat body 21, and then avoided receiving the problem that medium erodees the wearing and tearing for a long time because of spheroid 3 and the fixed spheroid 3 local position that leads to in valve seat body 21 sealing position, indirectly prolonged spheroid 3's life.
In order to avoid the separation of the ball 3 from the guide ring plate 22 when moving upwards, the upper end of the guide ring plate 22 is further symmetrically provided with a limiting plate 4 for limiting the upward movement of the ball 3, and the inner side of the limiting plate 4 is provided with an arc surface 41 matched with the ball 3. When the ball 3 moves up to abut against the limit plate 4, the circular arc surface 41 is provided so that the ball 3 can still rotate under the medium pressure.
The upper valve body 11 and the lower valve body 12 are fixedly connected through bolts, and a sealing ring 5 for preventing medium leakage is arranged at the joint of the upper valve body and the lower valve body in a sealing mode. A first annular groove and a second annular groove which are in a step-shaped structure are arranged in the lower valve body 12. The first ring groove 122 is located below the second ring groove, and the radial dimension of the first ring groove is smaller than that of the second ring groove. The guide ring plate 22 is located in the second ring groove, and the bottom of the guide ring plate is fixed in the second ring groove through bolts. The valve seat body 21 is in limited embedding in the first annular groove.
The bottom of valve seat body 21 is equipped with the bar burr, it is provided with graphite sealing ring 6 to seal between bar burr and the annular 122 No. one. The graphite sealing ring 6 can seal a gap between the valve body 21 and the first annular groove 122, and the sealing effect is better through the arrangement of the bar-shaped convex lines.
The contact part of the valve seat body 21 and the ball body 3 is metal hard seal, and the surface of the ball body 3 is coated with a hard alloy layer which is wear-resistant and scouring-resistant.
Example two
Referring to fig. 2, the difference between the second embodiment and the first embodiment is: the pair of limit plates 4 positioned at the upper end of the guide ring plate 22 are replaced with limit crossbars 7 positioned in the upper valve body 11. The limiting cross rod 7 is horizontally arranged in the upper valve body 11, and the lower end face of the limiting cross rod can abut against the top of the ball body 3.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (7)
1. A ball-type check valve with an integrally guided valve seat comprises a valve body, wherein a liquid inlet is formed in the bottom of the valve body, a liquid outlet is formed in the top of the valve body, and a medium flow passage communicated with the liquid inlet and the liquid outlet is formed in the valve body; the method is characterized in that: a valve core assembly for opening or closing the medium flow passage is arranged in the medium flow passage and comprises a guide valve seat and a ball body which are matched with each other; the guide valve seat comprises a valve seat body, and a guide ring plate integrally formed with the valve seat body is arranged on one side of the valve seat body, which is close to the liquid outlet; the ball is positioned in the guide ring plate, can freely rotate under the medium pressure difference and moves up and down along the guide ring plate; when the ball body moves to the lowest end, the ball body can be in sealing abutting connection with the valve seat body to close the medium flow passage.
2. The ball-type check valve of claim 1, wherein: the upper end of the guide ring plate is symmetrically provided with a pair of limiting plates for limiting the ball to move upwards, and the inner sides of the limiting plates are provided with arc surfaces matched with the ball.
3. The ball-type check valve of claim 1, wherein: a limiting cross rod used for limiting the sphere to move upwards is horizontally arranged in the valve body close to one side of the liquid outlet, and the lower end face of the limiting cross rod can abut against the top of the sphere.
4. A ball-type check valve according to any of claims 2-3, wherein: a first annular groove and a second annular groove which are in a step-shaped structure are arranged in the valve body close to one side of the liquid inlet; the first ring groove is positioned below the second ring groove, and the radial size of the first ring groove is smaller than that of the second ring groove; the guide ring plate is positioned in the second ring groove, and the bottom of the guide ring plate is fixed in the second ring groove through a bolt; the valve seat body is limited and embedded in the first annular groove.
5. The ball-type check valve of claim 4, wherein: the bottom of disk seat body is equipped with the bar burr, still sealed being provided with graphite sealing washer between bar burr and the annular.
6. The ball-type check valve of claim 1, wherein: the valve body comprises an upper valve body and a lower valve body which are arranged up and down and fixedly connected, and the upper valve body and the lower valve body are internally provided with the medium flow channel together; and a sealing ring for preventing medium leakage is hermetically arranged at the joint of the upper valve body and the lower valve body.
7. The ball-type check valve of claim 1, wherein: the surface of the sphere is coated with a hard alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922301234.0U CN211315242U (en) | 2019-12-19 | 2019-12-19 | Valve seat integrated guide type ball check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922301234.0U CN211315242U (en) | 2019-12-19 | 2019-12-19 | Valve seat integrated guide type ball check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211315242U true CN211315242U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922301234.0U Active CN211315242U (en) | 2019-12-19 | 2019-12-19 | Valve seat integrated guide type ball check valve |
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| CN (1) | CN211315242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023029208A1 (en) * | 2021-08-31 | 2023-03-09 | 惠州海卓科赛医疗有限公司 | Switching valve, stabilized pressure pump, and water jet device |
| CN116104753A (en) * | 2023-04-05 | 2023-05-12 | 宁波合力机泵股份有限公司 | Liquid CO 2 Horizontal hydraulic end of pressure-driven plunger pump |
-
2019
- 2019-12-19 CN CN201922301234.0U patent/CN211315242U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023029208A1 (en) * | 2021-08-31 | 2023-03-09 | 惠州海卓科赛医疗有限公司 | Switching valve, stabilized pressure pump, and water jet device |
| CN116104753A (en) * | 2023-04-05 | 2023-05-12 | 宁波合力机泵股份有限公司 | Liquid CO 2 Horizontal hydraulic end of pressure-driven plunger pump |
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