CN202441925U - Internal-threaded non-return theft-proof ball valve - Google Patents
Internal-threaded non-return theft-proof ball valve Download PDFInfo
- Publication number
- CN202441925U CN202441925U CN2012200376478U CN201220037647U CN202441925U CN 202441925 U CN202441925 U CN 202441925U CN 2012200376478 U CN2012200376478 U CN 2012200376478U CN 201220037647 U CN201220037647 U CN 201220037647U CN 202441925 U CN202441925 U CN 202441925U
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- valve
- annular groove
- nut
- theft
- joint
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- Expired - Fee Related
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Abstract
The utility model discloses an internal-threaded non-return theft-proof ball valve which comprises a valve body (1), a joint valve cover (2), a non-return device (3) and a nut (4), wherein the outer side of the joint valve cover (2) is sleeved with an outer theft-proof cap (5) which can move axially, the inner side of the outer theft-proof cap (5) is provided with a first ring groove (5a), a spring clamping ring (6) is arranged in the first ring groove (5a), and the outer side of the nut (4) is provided with a second ring groove (4a). When the outer theft-proof cap (5) moves downwards because of acting on the outer theft-proof cap (5) and the first ring groove (5a) is flush with the second ring groove (4a), the spring clamping ring (6) is clamped into the second ring groove (4a), so that the nut (4) and the joint valve cover (2) are tightly clamped. The outer theft-proof cap is added based on a non-return ball valve, and after the outer theft-proof cap and the nut are clamped tightly through the spring clamping ring, the outer theft-proof cap can not be removed at will, thereby achieving an effect of theft-proof protection.
Description
Technical field
The utility model belongs to valve technology field, specifically, is a kind of internal thread non-return antitheft ball valve that prevents arbitrarily dismounting on the natural gas meter that is used in.
Background technique
China national intellectual property net discloses a kind of " internal thread ball check valve " that is applicable to the combustion gas medium, and (patent No. is: 201020253811.X), be made up of the tapped valve body in two ends, valve seat, spheroid spool, valve rod, handle, valve gap joint etc.One end of valve gap joint links to each other with valve body, and the other end links to each other with nut, in the valve gap joint check device is housed, and check device is made up of the valve plug frame of hemispheric rubber valve plug, support rubber valve plug and the back-up ring that is positioned at valve plug frame below.Valve plug frame top embeds in the rubber valve plug, and valve plug frame sidewall is provided with radial direction through hole, and this radial direction through hole is communicated with the inner chamber of said valve gap joint with the inner chamber of nut.The internal thread ball valve of this structure, to not restriction, when mounted, any end can be used as the medium import to MEDIA FLOW, and the other end is adorned natural gas meter.After installation personnel was because of the carelessness misconnection, water can not be back in the gas pipeline, thereby has effectively avoided all gas meters on the whole piece pipeline to be damaged.
But in the combustion gas erecting bed, ball valve can arbitrarily be dismantled, and is unfavorable for unified management, especially at new residential building.For this reason, gas company need install a lot of protection works additional, has reduced working efficiency, has increased cost.
The model utility content
The purpose of the utility model is to solve ball check valve after installation, to be opened by random dismounting, so that the management of gas company.
For this reason; The technological scheme that the utility model adopted is: a kind of internal thread non-return antitheft ball valve; Comprise valve body (1), joint valve gap (2) and check device (3), an end of said joint valve gap (2) links to each other with valve body (1) through outside thread, and the other end links to each other with nut (4) through outside thread; Key is: the outside of said joint valve gap (2) is with can axially movable antitheft outer cap (5); The inboard of the outer cap (5) of said antitheft is provided with first annular groove (5a), and spring collar (6) is housed in said first annular groove (5a), and the arranged outside of said nut (4) has second annular groove (4a); Cap (5) moved down outside cap (5) made and guards against theft outside acting on antitheft; And first annular groove (5a) and second annular groove (4a) are when flushing, and spring collar (6) snaps in second annular groove (4a), with nut (4) and joint valve gap (2) chucking.
Before the installation, in second annular groove of nut, the rubber collar is housed, first annular groove is positioned at the top of second annular groove; During installation, take off the rubber collar in second annular groove, push the outer cap of antitheft downwards, first annular groove is moved down when flushing with second annular groove, spring collar snaps in second annular groove, with nut and joint valve gap chucking.
As preferably; Said check device (3) is arranged in the joint valve gap (2); The back-up ring (3c) that comprises the valve plug frame (3b) of hemispheric rubber valve plug (3a), support rubber valve plug (3a) and be positioned at valve plug frame (3b) below; The top of said valve plug frame (3b) embeds in the rubber valve plug (3a), and this valve plug frame (3b) sidewall is provided with radial direction through hole (3d), and this radial direction through hole (3d) is communicated with the inner chamber of said joint valve gap (2) with the inner chamber of said nut (4).Check device also can be arranged in the spool of valve body.
The utility model has increased anti-theft feature on the basis of ball check valve; Through increasing the outer cap of an antitheft; Guard against theft and just can not arbitrarily dismantle after outer cap and nut tighten through spring collar, when playing the anti-theft protection effect, practiced thrift cost; Improve working efficiency, made things convenient for the unified management of gas company.
Description of drawings
The structural representation of Fig. 1 the utility model (gripping orientation).
The exploded view of Fig. 2 the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Like Fig. 1, internal thread non-return shown in Figure 2 antitheft ball valve, form by the outer cap of valve body 1, joint valve gap 2, check device 3, nut 4, antitheft 5, spring collar 6, rubber collar 7 etc.Be provided with spheroid spool 8 in the valve body 1, the two ends of valve body 1 are provided with internal thread.One end of joint valve gap 2 links to each other with valve body 1 through outside thread, and the other end links to each other with nut 4 through outside thread.
The outside of joint valve gap 2 is with can axially movable antitheft outer cap 5, and the inboard of the outer cap 5 of guarding against theft is provided with the first annular groove 5a, in the first annular groove 5a spring collar 6 is housed.The arranged outside of nut 4 has the second annular groove 4a, before the installation, in the second annular groove 4a rubber collar 7 is housed, and the first annular groove 5a is positioned at the top of the second annular groove 4a.
During installation; Take off the rubber collar 7 in the second annular groove 4a, and act on the outer cap 5 of antitheft the outer cap 5 of guarding against theft is moved down, when the first annular groove 5a flushes with the second annular groove 4a; Spring collar 6 snaps in the second annular groove 4a, with nut 4 and joint valve gap 2 chuckings.
The set-up mode of check device 3 is a lot, both can be arranged in the spheroid spool 8 in the valve body 1, can be arranged on again in the joint valve gap 2 as shown in Figure 1.As shown in Figure 1, check device 3 is made up of the valve plug frame 3b of hemispheric rubber valve plug 3a, support rubber valve plug 3a and the back-up ring 3c that is positioned at valve plug frame 3b below.The top of valve plug frame 3b embeds in the rubber valve plug 3a, and this valve plug frame 3b sidewall is provided with radial direction through hole 3d, and this radial direction through hole 3d is communicated with the inner chamber of joint valve gap 2 with the inner chamber of nut 4.Move downward together with valve plug frame 3b and stop to continue the whereabouts when back-up ring 3c goes up the plane when medium promotes rubber valve plug 3a.The radial direction through hole 3d that medium can pass through valve plug frame 3b sidewall flow in the gas meter that links to each other with nut 4.When medium back flow, pressure medium at first promotes rubber valve plug 3a and valve plug frame 3b moves upward together, rubber valve plug 3a in the process of moving upward, at first break away from back-up ring 3c on the plane; Fit closely with joint valve gap 2 inwalls gradually; Rubber valve plug 3a rubber and plastic spare has a little distortion in fitting with joint valve gap 2 inwalls, make sealing effect better; Stop medium back flow in valve body 1, realize non-return.
Claims (2)
1. internal thread non-return antitheft ball valve; Comprise valve body (1), joint valve gap (2) and check device (3); One end of said joint valve gap (2) links to each other with valve body (1) through outside thread; The other end links to each other with nut (4) through outside thread, it is characterized in that: the outside of said joint valve gap (2) be with can axially movable antitheft cap (5) outward, the said antitheft inboard of cap (5) outward is provided with first annular groove (5a); Spring collar (6) is housed in said first annular groove (5a); The arranged outside of said nut (4) has second annular groove (4a), when act on the outer cap (5) of antitheft make guard against theft outside cap (5) move down, and first annular groove (5a) and second annular groove (4a) are when flushing; Spring collar (6) snaps in second annular groove (4a), with nut (4) and joint valve gap (2) chucking.
2. according to the described internal thread non-return antitheft of claim 1 ball valve; It is characterized in that: said check device (3) is arranged in the joint valve gap (2); The back-up ring (3c) that comprises the valve plug frame (3b) of hemispheric rubber valve plug (3a), support rubber valve plug (3a) and be positioned at valve plug frame (3b) below; The top of said valve plug frame (3b) embeds in the rubber valve plug (3a); This valve plug frame (3b) sidewall is provided with radial direction through hole (3d), and this radial direction through hole (3d) is communicated with the inner chamber of said joint valve gap (2) with the inner chamber of said nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200376478U CN202441925U (en) | 2012-02-07 | 2012-02-07 | Internal-threaded non-return theft-proof ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200376478U CN202441925U (en) | 2012-02-07 | 2012-02-07 | Internal-threaded non-return theft-proof ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441925U true CN202441925U (en) | 2012-09-19 |
Family
ID=46823376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200376478U Expired - Fee Related CN202441925U (en) | 2012-02-07 | 2012-02-07 | Internal-threaded non-return theft-proof ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441925U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805340A (en) * | 2016-05-24 | 2016-07-27 | 重庆市山城燃气设备有限公司 | Anti-burglary locking-controlled ball check valve |
| CN109578603A (en) * | 2018-12-12 | 2019-04-05 | 杭州职业技术学院 | A kind of anti-theft valve |
-
2012
- 2012-02-07 CN CN2012200376478U patent/CN202441925U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805340A (en) * | 2016-05-24 | 2016-07-27 | 重庆市山城燃气设备有限公司 | Anti-burglary locking-controlled ball check valve |
| CN105805340B (en) * | 2016-05-24 | 2018-11-20 | 重庆市山城燃气设备有限公司 | A kind of Anti-theft-dismounting lock control ball check valve |
| CN109578603A (en) * | 2018-12-12 | 2019-04-05 | 杭州职业技术学院 | A kind of anti-theft 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: 20120919 Termination date: 20190207 |