CN204004615U - A kind of axial plug ball check valve - Google Patents
A kind of axial plug ball check valve Download PDFInfo
- Publication number
- CN204004615U CN204004615U CN201420359926.5U CN201420359926U CN204004615U CN 204004615 U CN204004615 U CN 204004615U CN 201420359926 U CN201420359926 U CN 201420359926U CN 204004615 U CN204004615 U CN 204004615U
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- axle
- plug
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- valve
- axial
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Abstract
A kind of axial plug ball check valve, comprise the gage nipple chamber, axle plug valve chamber and the spherical valve pocket that are connected successively, in spherical valve pocket, establish the spherical valve core horizontally rotating, in axle plug valve chamber, establish the axle plug valve core moving horizontally, axle plug valve core comprises horizontally-guided axle, the helical spring that is fixed in successively the middle retaining ring of horizontally-guided axle, seal ring, axial valve plug and position-limited shaft and is enclosed within horizontally-guided axle periphery.Axle plug valve core is located in the middle of horizontally-guided axle, slides in axis of guide two ends in the pilot hole of the front and back of same level, makes axle plug valve core moving horizontally and can accurately aiming at, and is not subject to current variable effect, steadily reliable.In left and right, horizontally-guided hole, establish half slot expands discharge area as far as possible, improve current to axle plug valve core pressure, sealing is improved, no matter and be that ball valve opens or closes state and can stop reverse counterflow, improved the anti-reverse flow effect of safety check, stop gauge table to fall away, improved metering reliability.
Description
Technical field
The utility model relates to a kind of pipeline valve, a kind of ball valve that stops medium reverse reflux.
Background technique
The ball valve of installing and using in pipeline, conventionally only there is switching effect, do not there is the non-return effect of the refluence of preventing, in order to prevent that liquid from flowing backwards, also need to install a safety check, safety check Main Function is to prevent that medium from flowing backwards, table falls away, usurp media resource, and ball valve effect is when the inner installation pipeline of user or maintenance, cut off the medium source of registering one's residence, convenient and safe constructing operation.
In order to solve medium backward flow problem, there are various ball check valve structures, CN201320309623.8 has proposed a kind of safety check, this ball check valve in use, when medium following current enters ball check valve, need overcome by the pressure of medium the elastic force of check spring, non-return valve core is retreated, medium just can pass through valve core through hole, owing to having installed in osculum with spring, play the flap of non-return effect, cause hydraulic loss, circulation area reduces, thereby make water-outlet quantity too small, affect using effect, and only when ball valve is closed completely, non-return valve core could be closed sealing completely, when ball valve core is still opened, cannot play prevents from flowing backwards produces, safety check is inoperative.
Summary of the invention
Technical problem to be solved in the utility model, for current ball check valve, exist to rely on and close after ball valve core, make non-return valve core rely on the elastic force of recovery spring could close the defect of sealing completely, design a kind of dependence and close ball valve, as long as there is medium back flow, just can close the safety check of sealing completely, will improve safety check to counter-flow media rapid response simultaneously, close immediately, sealing is reliable.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of axial plug ball check valve, comprise the gage nipple chamber, axle plug valve chamber and the spherical valve pocket that are connected successively, in spherical valve pocket, establish the spherical valve core horizontally rotating, in axle plug valve chamber, establish the axle plug valve core moving horizontally, it is characterized in that described axle plug valve core comprises horizontally-guided axle, the helical spring that is fixed in successively the middle retaining ring of described horizontally-guided axle, seal ring, axial valve plug and position-limited shaft and is enclosed within described horizontally-guided axle periphery; One end of described horizontally-guided axle is flexibly connected with the front pilot hole at rear wall center, described gage nipple chamber, and the other end of described horizontally-guided axle is flexibly connected with the rear pilot hole at described axle plug valve cavity rear end center.
Front diversion cavity and the rear diversion cavity of receiving horizontally-guided axle to move horizontally established in described gage nipple chamber.
Axle plug spool chamber and the axle plug valve back cavity of receiving axle plug valve core to move horizontally established in described axle plug valve chamber.
The described front pilot hole left and right sides is provided with two symmetrical front circulation half slots.
The described rear pilot hole left and right sides is provided with two symmetrical rear circulation half slots.
Described seal ring is nested in the annular groove between described retaining ring and axial valve plug.
Described helical spring one end is enclosed within described position-limited shaft periphery and holds mutually with described axial valve plug, and the other end holds mutually with the middle boss of axle plug valve back cavity wall.
Between described axle plug valve chamber and spherical valve pocket by the seal ring Butt sealing that is coated with anaerobic adhesive.
The beneficial effect of above-mentioned design is: axle plug valve core is located in the middle of horizontally-guided axle, slides in axis of guide two ends in the pilot hole of the front and back of same level, makes axle plug valve core moving horizontally and can accurately aiming at, and is not subject to current variable effect, steadily reliable.In left and right, horizontally-guided hole, establish half slot expands discharge area as far as possible, improve current to axle plug valve core pressure, sealing is improved, no matter and be that ball valve opens or closes state and can stop reverse counterflow, improved the anti-reverse flow effect of safety check, stop gauge table to fall away, improved metering reliability.
Accompanying drawing explanation
Fig. 1 is the utility model structure and location diagram thereof when medium following current.
Fig. 2 is the utility model structure and location diagram thereof when medium counter flow.
Fig. 3 is the axle plug valve cored structure figure of safety check.
Fig. 4 a is axle plug valve chamber left view, and Fig. 4 b is the A-A sectional drawing of Fig. 4 a.
Fig. 5 a is gage nipple left view, and Fig. 5 b is the B-B sectional drawing of Fig. 5 a.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further described.
Shown in Fig. 1 and Fig. 2, the utility model overall structure comprises that ball valve chamber 1, ball valve core 2, axle plug valve chamber 4, ball valve rod 5, ball valve handle 7 fixed by screw 8 through handle seal ring 6 and ball valve rod 5, by handle 7, drive ball valve core 2 to horizontally rotate, ball valve chamber 1 is affixed with 4 sealings of axle plug valve chamber through ball valve chamber seal ring 3, in axle plug valve chamber 4, establish an axle plug valve core 10 that can move horizontally, inner chamber front end and the gage nipple 12 in axle plug valve chamber 4 are spirally connected, and the front end of gage nipple 12 is spirally connected through joint sealing pad 13 and Female connector fittings 14.Between axle plug valve chamber 4 and spherical valve pocket 1 by seal ring 3 Butt sealings that are coated with anaerobic adhesive.
Shown in Fig. 3 and Fig. 4 a and Fig. 4 b, axle plug valve core 10 comprises horizontally-guided axle 105, be fixed in successively the middle retaining ring 104 of horizontally-guided axle 105, closure gasket groove 103, axial valve plug 102, position-limited shaft 101, horizontally-guided axle 105 successively with retaining ring 104, closure gasket groove 103, axially valve plug 102 and position-limited shaft 101 tighten up and are connected, seal ring 11 is nested in the closure gasket groove 103 between retaining ring 104 and axial valve plug 102, the front end of horizontally-guided axle 105 is flexibly connected with the front pilot hole 122 in the middle of 12 rear walls of gage nipple chamber, front diversion cavity 120 and the rear diversion cavity 126 of receiving horizontally-guided axle 105 to move horizontally established in gage nipple chamber 12.The left and right side of the front pilot hole 122 at rear wall center, gage nipple chamber is provided with two symmetrical front circulation half slots 121, and medium is diversion cavity 126 after this 121 the past of left and right through hole diversion cavity 120 flows to.In 12 front end chambeies, gage nipple chamber, establish in addition the interior triangle nut 123 for screwing.
Shown in Fig. 3 and Fig. 5 a～5b, axle plug spool chamber 40 and the axle plug valve back cavity 45 of receiving axle plug valve core 10 to move horizontally established in axle plug valve chamber 4.The rear end of horizontally-guided axle 105 is flexibly connected with the rear pilot hole 42 in the middle of 4 rear walls of axle plug valve chamber, rear pilot hole 42 left and right side at 4 rear wall centers, axle plug valve chamber are provided with two symmetrical rear circulation half slots 41, medium is circulation groove behind this left and right, and medium can flow to axle plug valve back cavity 45 or reverse flow from axle plug spool chamber 40 fast.One end of helical spring 9 is enclosed within position-limited shaft 101 peripheries and holds mutually with axial valve plug 102, and the other end of helical spring 9 holds mutually with the middle boss 44 of axle plug valve chamber rear wall.
Referring to Fig. 1, shown in Fig. 4 b and Fig. 5 b, after gauge table docks with gage nipple 12, as ball valve core 2 is opened, media flow direction is as shown by arrows from left to right for postive direction flows, if medium is water, represent that water meter is that forward is walked, now water pressure is greater than the elastic force of helical spring 9, horizontally-guided axle 105 translation from left to right of axle plug valve, axle plug valve 10 is opened, because horizontally-guided axle 105 two ends are located at respectively front pilot hole 122 and the interior horizontal slip of rear pilot hole 42 of same level height, and current are that diversion cavity 120 enters axle plug valve ante-chamber 40 by symmetrical front opening 121 in the past, after symmetrical, opening 41 enters axle plug valve back cavity 45 again, the unobstructed resistance of current is little, the travelling speed of horizontally-guided axle 105 and variation in water pressure positive correlation, move quick and precisely, do not affect metering and using effect.
Shown in Fig. 2, Fig. 4 b and Fig. 5 b, gauge table is still connected on the left end of Female connector fittings 14 and sealing gasket 13, if ball valve core 2 is still open mode, direction is mobile from right to left as shown by arrows for media flow direction, if medium is water, now the elastic force of water pressure and helical spring 9 is added in the same way, axle plug valve 10 is closed rapidly, the water meter that is connected on gage nipple 12 left ends cannot be reverse be walked, and axle plug valve core 10 really plays and prevents that medium from flowing backwards, the effect that stops gauge table to fall away.
Claims (8)
1. an axial plug ball check valve, comprise the gage nipple chamber, axle plug valve chamber and the spherical valve pocket that are connected successively, in spherical valve pocket, establish the spherical valve core horizontally rotating, in axle plug valve chamber, establish the axle plug valve core moving horizontally, it is characterized in that described axle plug valve core comprises horizontally-guided axle, the helical spring that is fixed in successively the middle retaining ring of described horizontally-guided axle, seal ring, axial valve plug and position-limited shaft and is enclosed within described horizontally-guided axle periphery; One end of described horizontally-guided axle is flexibly connected with the front pilot hole at rear wall center, described gage nipple chamber, and the other end of described horizontally-guided axle is flexibly connected with the rear pilot hole at described axle plug valve cavity rear end center.
2. a kind of axial plug ball check valve according to claim 1, is characterized in that described gage nipple chamber (12) establishes front diversion cavity (120) and the rear diversion cavity (126) of receiving horizontally-guided axle (105) to move horizontally.
3. a kind of axial plug ball check valve according to claim 1, is characterized in that described axle plug valve chamber (4) establishes axle plug spool chamber (40) and the axle plug valve back cavity (45) of receiving axle plug valve core (10) to move horizontally.
4. a kind of axial plug ball check valve according to claim 1, is characterized in that described front pilot hole (122) left and right sides is provided with two symmetrical front circulation half slots (121).
5. a kind of axial plug ball check valve according to claim 1, is characterized in that described rear pilot hole (42) left and right sides is provided with two symmetrical rear circulation half slots (41).
6. a kind of axial plug ball check valve according to claim 1, is characterized in that described seal ring (11) is nested in the closure gasket groove (103) between retaining ring (104) and axial valve plug (102).
7. a kind of axial plug ball check valve according to claim 1, the one end that it is characterized in that described helical spring (9) is enclosed within position-limited shaft (101) periphery and holds mutually with axial valve plug (102), and the other end holds mutually with the middle boss (44) of axle plug valve back cavity wall.
8. a kind of axial plug ball check valve according to claim 1, is characterized in that between described axle plug valve chamber (4) and spherical valve pocket (1) by seal ring (3) Butt sealing that is coated with anaerobic adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359926.5U CN204004615U (en) | 2014-07-02 | 2014-07-02 | A kind of axial plug ball check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359926.5U CN204004615U (en) | 2014-07-02 | 2014-07-02 | A kind of axial plug ball check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004615U true CN204004615U (en) | 2014-12-10 |
Family
ID=52044618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420359926.5U Ceased CN204004615U (en) | 2014-07-02 | 2014-07-02 | A kind of axial plug ball check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004615U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276246A (en) * | 2015-11-27 | 2016-01-27 | 江苏华太电力仪表有限公司 | Straight-through type mute stop valve |
| CN108474488A (en) * | 2016-01-14 | 2018-08-31 | 多可姆有限公司 | Check-valves with counter fluid functions of physical supply |
| CN110319289A (en) * | 2019-07-31 | 2019-10-11 | 乐清市乐可力气动科技有限公司 | A kind of high pressure resistant quick connector and its press gland |
-
2014
- 2014-07-02 CN CN201420359926.5U patent/CN204004615U/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276246A (en) * | 2015-11-27 | 2016-01-27 | 江苏华太电力仪表有限公司 | Straight-through type mute stop valve |
| CN108474488A (en) * | 2016-01-14 | 2018-08-31 | 多可姆有限公司 | Check-valves with counter fluid functions of physical supply |
| CN108474488B (en) * | 2016-01-14 | 2020-09-01 | 多可姆有限公司 | Check valve with reverse fluid supply function |
| CN110319289A (en) * | 2019-07-31 | 2019-10-11 | 乐清市乐可力气动科技有限公司 | A kind of high pressure resistant quick connector and its press gland |
| CN110319289B (en) * | 2019-07-31 | 2023-09-22 | 乐清市乐可力气动科技有限公司 | High-pressure-resistant quick connector and pressing cover thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20210303 Decision number of declaring invalidation: 48463 Granted publication date: 20141210 |
|
| IW01 | Full invalidation of patent right |