CN203272899U - Ball check valve - Google Patents
Ball check valve Download PDFInfo
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- CN203272899U CN203272899U CN 201320309623 CN201320309623U CN203272899U CN 203272899 U CN203272899 U CN 203272899U CN 201320309623 CN201320309623 CN 201320309623 CN 201320309623 U CN201320309623 U CN 201320309623U CN 203272899 U CN203272899 U CN 203272899U
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Abstract
The utility model provides a ball check valve, and belongs to the technical field of valve manufacturing. The ball check valve solves the problems that an existing ball check valve is complex in structure, poor in airtightness and the like. The ball check valve comprises a valve body, a valve core, a valve rod and a handle. The valve body is provided with a water inlet and a water outlet, the valve core is located in the valve body, one end of the valve rod is fixedly connected with the valve core, and the other end of the valve rod penetrates through the valve body and is fixedly connected with the handle. A check valve is fixedly arranged in the water outlet of the valve body, and the check valve comprises a check valve core, a spring, a valve cover and a barrel-shaped check valve body. The check valve body is provided with a water outlet end and a water inlet end close to the valve core, the valve cover is fixedly arranged at the water outlet end of the check valve body, the spring is arranged between the valve cover and the check valve core located in the check valve body, an annular groove is formed in the peripheral surface of the check valve core close to the water inlet end, and the a sealing ring for blocking the water inlet end is arranged in the annular groove in a sleeved mode. The ball check valve has the advantages of being good in airtightness, low in manufacturing cost and the like.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, relates to a kind of ball valve, particularly a kind of ball check valve.
Background technique
Ball valve is a kind of common valve, realizes the function of opening and closing medium channel by the rotary ball valve spool, has needed only the effect of cut-out, distribution and change media flow direction on pipeline, and structure function is more single.
In order to prevent that medium from flowing backwards, non-return structure all is set in ball valve usually, for example Chinese documents and materials disclose a kind of ball check valve [application number: 201220511789.3; Notice of authorization number: CN202901402U], it comprises valve body, spool, valve rod and handwheel, valve body has water intake and water outlet, valve inner is cavity, spool is arranged in valve body, one end of valve rod and spool is connected and the other end of valve rod passes valve body and handwheel is connected, be fixed with positioning seat in spool, laterally be provided with a pilot hole on positioning seat, the activity of pilot hole place is equipped with non-return valve core, be provided with spring between non-return valve core and positioning seat, non-return valve core has the trend that forms sealing with the positioning seat madial wall under the elastic force effect of spring.
Above-mentioned ball check valve arranges non-return structure in spool, can reduce certain layout installing space, but has changed valve core structure, has increased simultaneously the installation difficulty of positioning seat, non-return valve core and spring, complex structure, and manufacture cost is high.
Also has at present in addition a kind of ball check valve, it installs safety check at valve body near the inside of water outlet, but the seal ring of this safety check is engaging place between helical pitch seat and helical pitch frame, when the zone of engaging place installation seal ring is larger, seal ring is easily loosening, and sealing effect is poor, when zone that seal ring is installed in engaging place hour, seal ring is because elasticity expands outwardly, and seal ring is easily loosening even to come off.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides that a kind of non-return is effective, the ball check valve of good airproof performance.
the purpose of this utility model can realize by following technical proposal: a kind of ball check valve, comprise valve body, spool, valve rod and handle, described valve body has water intake and water outlet, described spool is positioned at valve body, one end of described valve rod and spool is connected and the other end of valve rod passes valve body and handle is connected, be fixed with safety check in the water outlet of described valve body, described safety check comprises non-return valve core, spring, valve gap and tubular check valve body, described check valve body has the feed-water end of waterexit end and close spool, described valve gap is fixed on the waterexit end of check valve body, described spring is located between valve gap and the non-return valve core in check valve body, it is characterized in that, described non-return valve core has annular groove near the outer circumferential face of feed-water end, be arranged with the seal ring for the shutoff feed-water end in described annular groove.
Spring in this ball check valve provides elastic force to make non-return valve core be pressed on the feed-water end of check valve body, and seal ring makes non-return valve core and check valve body be in sealing state, and seal ring is positioned at annular groove, and seal ring is installed firmly, can not come off, and non-return is effective.Work as handle with sleeve, drive valve core rotation, medium flows into from water intake, when the pressure of medium surpasses the elastic force of spring, the non-return valve core axial translation, this moment, medium was by the feed-water end safety check of flowing through, flow out from the waterexit end of safety check, the water outlet from valve body flows out at last again; When pressure medium weakens or spool when closing, non-return valve core resets under the elastic force effect of spring, and seal ring is the feed-water end of shutoff check valve body again, closure of check ring, and medium can not pass through, and prevents that medium from flowing backwards.
In above-mentioned a kind of ball check valve, described non-return valve core comprises the check-valve lever of direct rod shape and round table-like valve seat, described check-valve lever and valve seat are the integral type structure, the outer circumferential face of described valve seat has step and the valve seat end is fixed with rubber gasket by the caulking groove interference fit, and described rubber gasket periphery coordinates above-mentioned step to form described annular groove.During installation, first seal ring is arranged on step, then the projection that rubber gasket is had inserts caulking groove, rubber gasket clamps seal ring fixes seal ring, seal ring quick and easy for installation.
In above-mentioned a kind of ball check valve, described rubber gasket has spherical groove towards the end face center of feed-water end.The medium that is arranged so that of spherical groove impacts evenly rubber gasket, and rubber gasket translation stationarity is good.
In above-mentioned a kind of ball check valve, have guide cylinder in the middle part of described valve gap, described check-valve lever is located in guide cylinder.The center of guide cylinder has the hole of running through, and the slightly larger in diameter in hole is in the diameter of check-valve lever, one end of check-valve lever is located in the hole of guide cylinder, and when non-return valve core moved, check-valve lever can only be along the axial direction left and right rectilinear translation of check-valve lever under the effect of guide cylinder guiding.
In above-mentioned a kind of ball check valve, the outer circumferential face of described check valve body is arranged with seal ring two.Gap between seal ring two sealing check valve bodies and valve body, good seal performance.
Compared with prior art, the good seal performance of this ball check valve, non-return is effective, and the parts such as seal ring are quick and easy for installation, and using effect is good.
Description of drawings
Fig. 1 is the structure sectional view of this ball check valve.
Fig. 2 is the structure sectional view of safety check in this ball check valve.
In figure, 1, valve body; 1a, water intake; 1b, water outlet; 2, spool; 3, valve rod; 4, handle; 5, safety check; 5a, non-return valve core; 5a1, annular groove; 5a2, check-valve lever; 5a3, valve seat; 5b, spring; 5c, valve gap; 5c1, guide cylinder; 5d, check valve body; 6, seal ring; 7, rubber gasket; 7a, spherical groove; 8, seal ring two.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
as shown in Figure 1, this ball check valve comprises valve body 1, spool 2, valve rod 3 and handle 4, valve body 1 has water intake 1a and water outlet 1b, spool 2 is positioned at valve body 1, one end of valve rod 3 and spool 2 are connected and the other end of valve rod 3 passes valve body 1 and is connected with handle 4, be fixed with safety check 5 by jump ring in the water outlet 1b of valve body 1, safety check 5 comprises non-return valve core 5a, spring 5b, valve gap 5c and tubular check valve body 5d, check valve body 5d has the feed-water end of waterexit end and close spool 2, valve gap 5c is fixed on the waterexit end of check valve body 5d, spring 5b is located between valve gap 5c and the non-return valve core 5a in check valve body 5d, non-return valve core 5a has annular groove 5a1 near the outer circumferential face of feed-water end, be arranged with the seal ring 6 for the shutoff feed-water end in annular groove 5a1.
further describe in detail, as shown in Figure 2, non-return valve core 5a comprises the check-valve lever 5a2 of direct rod shape and round table-like valve seat 5a3, check-valve lever 5a2 and valve seat 5a3 are the integral type structure, the outer circumferential face of valve seat 5a3 has step and valve seat 5a3 end is fixed with rubber gasket 7 by the caulking groove interference fit, rubber gasket 7 peripheries coordinate above-mentioned step to form for the seal ring 6 fixing annular groove 5a1 of installation, valve gap 5c middle part has guide cylinder 5c1, check-valve lever 5a2 is located in guide cylinder 5c1, spring 5b is set in outside check-valve lever 5a2, the end of spring 5b is resisted against on valve seat 5a3, the other end is resisted against on guide cylinder 5c1, spring 5b is between valve seat 5a3 and valve gap 5c, all the time be in compressed state, make non-return valve core 5a have the trend that moves towards check valve body 5d feed-water end under the effect of spring 5b elastic force.In order to make rubber gasket 7 and non-return valve core 5a translation stationarity good, rubber gasket 7 has spherical groove 7a towards the end face center of feed-water end; For good seal performance, the outer circumferential face of check valve body 5d is arranged with seal ring 28.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as valve body 1, water intake 1a, water outlet 1b, spool 2, valve rod 3, handle 4, safety check 5, non-return valve core 5a, annular groove 5a1, check-valve lever 5a2, valve seat 5a3, spring 5b, valve gap 5c, guide cylinder 5c1, check valve body 5d, seal ring 6, rubber gasket 7, spherical groove 7a, seal ring 28, do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (5)
1. ball check valve, comprise valve body (1), spool (2), valve rod (3) and handle (4), described valve body (1) has water intake (1a) and water outlet (1b), described spool (2) is positioned at valve body (1), one end of described valve rod (3) and spool (2) are connected and the other end of valve rod (3) passes valve body (1) and is connected with handle (4), be fixed with safety check (5) in the water outlet (1b) of described valve body (1), described safety check (5) comprises non-return valve core (5a), spring (5b), valve gap (5c) and tubular check valve body (5d), described check valve body (5d) has the feed-water end of waterexit end and close spool (2), described valve gap (5c) is fixed on the waterexit end of check valve body (5d), described spring (5b) is located at valve gap (5c) and is positioned between the non-return valve core (5a) of check valve body (5d), it is characterized in that, described non-return valve core (5a) has annular groove (5a1) near the outer circumferential face of feed-water end, be arranged with the seal ring (6) for the shutoff feed-water end in described annular groove (5a1).
2. a kind of ball check valve according to claim 1, it is characterized in that, described non-return valve core (5a) comprises the check-valve lever (5a2) of direct rod shape and round table-like valve seat (5a3), described check-valve lever (5a2) is the integral type structure with valve seat (5a3), the outer circumferential face of described valve seat (5a3) has step and valve seat (5a3) end is fixed with rubber gasket (7) by the caulking groove interference fit, and described rubber gasket (7) periphery coordinates above-mentioned step to form described annular groove (5a1).
3. a kind of ball check valve according to claim 2, is characterized in that, described rubber gasket (7) has spherical groove (7a) towards the end face center of feed-water end.
4. according to claim 2 or 3 described a kind of ball check valves, is characterized in that, has guide cylinder (5c1) in the middle part of described valve gap (5c), and described check-valve lever (5a2) is located in guide cylinder (5c1).
5. according to claim 1 and 2 or 3 described a kind of ball check valves, is characterized in that, the outer circumferential face of described check valve body (5d) is arranged with seal ring two (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320309623 CN203272899U (en) | 2013-05-31 | 2013-05-31 | Ball check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320309623 CN203272899U (en) | 2013-05-31 | 2013-05-31 | Ball check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272899U true CN203272899U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320309623 Expired - Fee Related CN203272899U (en) | 2013-05-31 | 2013-05-31 | Ball check valve |
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| Country | Link |
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| CN (1) | CN203272899U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734663A (en) * | 2016-03-16 | 2016-07-06 | 江苏华盛天龙光电设备股份有限公司 | Pressurizing device of single-crystal furnace |
| CN106321910A (en) * | 2016-08-16 | 2017-01-11 | 雷蒙德(北京)科技股份有限公司 | Purge valve |
| CN110848410A (en) * | 2019-09-27 | 2020-02-28 | 浙江成丰燃气设备有限公司 | Anti-theft check ball valve |
| CN110886867A (en) * | 2019-11-14 | 2020-03-17 | 董服义 | Ball valve with check function |
| CN111649154A (en) * | 2020-06-04 | 2020-09-11 | 呼和浩特市蒙瓦阀业有限公司 | Integrated check ball valve |
| CN111946852A (en) * | 2020-07-16 | 2020-11-17 | 黎雯婷 | Water conservancy valve with prevent return water |
| CN112361016A (en) * | 2020-11-26 | 2021-02-12 | 沪航科技集团有限公司 | Improved magnetic telescopic check ball valve |
-
2013
- 2013-05-31 CN CN 201320309623 patent/CN203272899U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734663A (en) * | 2016-03-16 | 2016-07-06 | 江苏华盛天龙光电设备股份有限公司 | Pressurizing device of single-crystal furnace |
| CN106321910A (en) * | 2016-08-16 | 2017-01-11 | 雷蒙德(北京)科技股份有限公司 | Purge valve |
| CN106321910B (en) * | 2016-08-16 | 2020-02-28 | 雷蒙德(北京)科技股份有限公司 | Purging valve |
| CN110848410A (en) * | 2019-09-27 | 2020-02-28 | 浙江成丰燃气设备有限公司 | Anti-theft check ball valve |
| CN110886867A (en) * | 2019-11-14 | 2020-03-17 | 董服义 | Ball valve with check function |
| CN111649154A (en) * | 2020-06-04 | 2020-09-11 | 呼和浩特市蒙瓦阀业有限公司 | Integrated check ball valve |
| CN111649154B (en) * | 2020-06-04 | 2022-02-15 | 呼和浩特市蒙瓦阀业有限公司 | Integrated check ball valve |
| CN111946852A (en) * | 2020-07-16 | 2020-11-17 | 黎雯婷 | Water conservancy valve with prevent return water |
| CN112361016A (en) * | 2020-11-26 | 2021-02-12 | 沪航科技集团有限公司 | Improved magnetic telescopic check ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20210531 |