CN201575204U - Isolating valve with return-stopping function - Google Patents
Isolating valve with return-stopping function Download PDFInfo
- Publication number
- CN201575204U CN201575204U CN2009203177493U CN200920317749U CN201575204U CN 201575204 U CN201575204 U CN 201575204U CN 2009203177493 U CN2009203177493 U CN 2009203177493U CN 200920317749 U CN200920317749 U CN 200920317749U CN 201575204 U CN201575204 U CN 201575204U
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- Prior art keywords
- valve
- connecting sleeve
- stopping mechanism
- intake tunnel
- check function
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- Expired - Lifetime
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Abstract
The utility model provides an isolating valve with the return-stopping function, belonging to the field of valve manufacturing. The isolating valve with the return-stopping function solves the problems that a non-return device is inconvenient for installation, the return-stopping effect is poor, and the like. The isolating valve with the return-stopping function comprises a valve body provided with a water inlet channel and a water outlet channel, a valve core and a valve rod, wherein the water inlet channel is communicated with the water outlet channel; the valve core is installed inside the valve body; the inner end of the valve rod is connected with the valve core, and the outer end thereof penetrates out of the valve body; the water inlet channel is internally provided with a non-return mechanism which is used for blocking the water inlet channel when fluid flows back and is sealed with the inner wall of the water inlet channel along the circumferential direction; the inner end of the non-return mechanism is provided with a baffle shoulder, against which the inner end of the non-return mechanism leans; and the outer end of the non-return mechanism is provided with a blocking component used for preventing the non-return mechanism from being separated from the water inlet channel. The isolating valve has the advantages of convenient assembly, good sealing performance, excellent return-stopping effect and the like.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, relates to a kind of separating valve, particularly a kind of separating valve that has the check function.
Background technique
At present, liquid guide flow all can utilize pipeline to carry out, and for preventing the fluid reverse backflow, therefore all can be equiped with the valve member of control switch on pipeline, such as separating valve.Separating valve comprises valve body, spool, valve rod and handle, and spool is loaded in the valve body, and the inner of valve rod is connected with spool, and the outer end of valve rod passes valve body and handle is connected.Make spool close or open by handle with sleeve, thus the closing or conducting of pilot line.
Separating valve is widely used in hot-water heating equipment, for example the water inlet of water heater all is equipped with separating valve, the other end of separating valve is connected with cold water pipes, cold water pipes has a plurality of terminal flowing water Valves to connect usually, when terminal valve of any unlatching, be to prevent that the cold water in the water heater from flowing out by cold water pipes, therefore need to install check equipment.
Existing check equipment comprises valve members such as one-way valve, check valve, also needs connection pipe fitting during installing, and installing is inconvenient.Someone studies this, for example Chinese patent literature discloses a kind of ball valve with non-return device [notice of authorization number: CN201246484Y], it comprises valve body, limit, valve body two ends is respectively equipped with connected structure and instrument is adjusted structure, be provided with the runner of perforation in the valve body, a ball-valve structure is established in the inflow side of runner, a room space is established in the outflow side of runner, runner is connected to place, room space and is provided with gradient retaining edge, also be provided with a non-return device in the valve body, non-return device includes a check baffle plate and a tip bar, and check baffle plate top side is pivotally arranged on the valve body with tip bar.When current when the runner, stream is opened in conducting thereby current back down the check baffle plate, when the current adverse current, water impact is to the check baffle plate, thereby the check flapper closure is kept out by gradient retaining edge and is closed runner.
But the opening and closing of above-mentioned check baffle plate need certain space in valve body, the volume of ball valve is bigger, and do not have sealing configuration between check baffle plate and the valve body, poor sealing performance.In use, the tip bar meeting corrosion of check baffle plate and valve body joint, the check baffle plate in use increases with tip bar frictional force, impact force when the current adverse current is during less than the frictional force of check baffle plate and tip bar, the check baffle plate can not be brought into play non-return effect, even water flow impact pressure has overcome frictional force, but the governing speed of check baffle plate and precision are not high yet, and working life is short.
Summary of the invention
The purpose of this utility model is at the above-mentioned problems in the prior art, and the separating valve that has the check function that a kind of check is effective, sealing is high and easy to assembly is provided.
The purpose of this utility model can realize by following technical proposal: a kind of separating valve that has the check function, comprise valve body with intake tunnel and exhalant canal, spool and valve rod, described intake tunnel and exhalant canal connect, spool is loaded in the valve body, the inner of described valve rod is connected with spool, the outer end of valve rod passes valve body, it is characterized in that, be provided with in the described intake tunnel when fluid reflux, can block intake tunnel and with the converse stopping mechanism of intake tunnel inwall circumferential seal, be provided with at the inner place of converse stopping mechanism and can make converse stopping mechanism the inner against thereon shoulder block, the place, outer end of converse stopping mechanism is provided with and can prevents that converse stopping mechanism breaks away from the barrier assembly of intake tunnel.
Originally the separating valve that has the check function is installed in converse stopping mechanism in the intake tunnel in manufacture process, at place, converse stopping mechanism outer end barrier assembly is set again, and converse stopping mechanism just can not break away from intake tunnel like this.
Originally in separating valve when work that has the check function, make the spool rotation by rotation valve rod, and the rotation of spool is blocked or open-minded intake tunnel and exhalant canal, thus the closing or conducting of pilot line.And the open degree by valve rod control spool can control flow rate, has played the effect of regulating flow.When intake tunnel and exhalant canal connect fluid reflux, converse stopping mechanism blocking-up intake tunnel, fluid can not overflow from intake tunnel like this, can the element that is connected with this separating valve not caused backflow to damage.
In the above-mentioned separating valve that has the check function, described barrier assembly comprises circular groove and the snap ring that is opened in place, converse stopping mechanism outer end, and above-mentioned snap ring is loaded in the circular groove.After converse stopping mechanism installs in intake tunnel, only need snap ring is loaded in the circular groove, snap ring can stop that converse stopping mechanism prevents that converse stopping mechanism breaks away from intake tunnel.
In the above-mentioned separating valve that has the check function, described converse stopping mechanism comprises tubular first connecting sleeve, is arranged on second connecting sleeve in first connecting sleeve and is positioned at the fuse of second connecting sleeve by interface arrangment, described first connecting sleeve has convex shoulder, second connecting sleeve has at least two circumferentially fixing floor, be provided with spring between above-mentioned fuse and floor, fuse and above-mentioned convex shoulder are against forming sealing under the effect of spring.
When fluid from the intake tunnel process, fluid impact fuse and overcome the elastic force of spring, fuse and convex shoulder break away from, fluid enters exhalant canal from the gap between the fuse and second connecting sleeve; When fluid reflux, under the effect of the impact force of the elastic force of spring and fluid reflux, thereby fuse and convex shoulder have been blocked intake tunnel against forming sealing, and fluid can not overflow from intake tunnel.
In the above-mentioned separating valve that has the check function, described interface arrangment comprises the annular boss that the annular slot that the first connecting sleeve inboard offers and second connecting sleeve outside have, and above-mentioned annular boss is connected in and makes first connecting sleeve and the clamping mutually of second connecting sleeve in the annular slot.Such first connecting sleeve and second connecting sleeve can be connected together fast, are different from being threaded between first connecting sleeve and second connecting sleeve in the past, at assembling hardness ag(e)ing rate height.
In the above-mentioned separating valve that has the check function, described floor middle part is connected with guide sleeve, and described fuse has raised line, and raised line passes spring and guide sleeve successively.Fuse and spring can not be offset under the effect of guide sleeve, good operation stability.
In the above-mentioned separating valve that has the check function, described first connecting sleeve outside is arranged with the seal ring one that forms circumferential seal with valve interior wall.Sealing height between such first connecting sleeve and the valve body.
In the above-mentioned separating valve that has the check function, the described fuse outside is arranged with and can contacts the seal ring two that forms sealing with convex shoulder.Improved the sealing between fuse and the convex shoulder like this.
Compared with prior art, the separating valve that has the check function that the utility model provides has the following advantages:
1, originally has the setting of barrier assembly in the separating valve of check function, make and improved manufacturing efficiency by the quick and easy for installation of converse stopping mechanism.
2, originally have first connecting sleeve and the clamping mutually of second connecting sleeve in the separating valve of check function, interface arrangment has replaced being threaded between first connecting sleeve and second connecting sleeve in the past, and is easy to process like this and install also convenient and swift.
3, originally have the sealing height of the separating valve of check function, check is effective.
Description of drawings
Fig. 1 is the structure cross-sectional schematic that originally has the separating valve of check function.
Fig. 2 is the structure cross-sectional schematic that originally has converse stopping mechanism in the separating valve of check function.
Fig. 3 is the user mode structure cross-sectional schematic that originally has the separating valve of check function.
Fig. 4 is the another kind of structure cross-sectional schematic that originally has the separating valve of check function.
Among the figure, 1, valve body; 1a, intake tunnel; 1b, exhalant canal; 1c, shoulder block; 2, spool; 3, valve rod; 4, converse stopping mechanism; 5, barrier assembly; 5a, circular groove; 5b, snap ring; 6, first connecting sleeve; 6a, annular slot; 6b, convex shoulder; 7, second connecting sleeve; 7a, annular boss; 7b, floor; 8, fuse; 8a, raised line; 9, guide sleeve; 10, spring; 11, seal ring one; 12, seal ring two; 13, hex union; 14, outlet pipe.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment 1
As shown in Figure 1, the separating valve that originally has a check function comprises valve body 1, spool 2, valve rod 3 and converse stopping mechanism 4.
Specifically, valve body 1 is straight tube-like, and it has intake tunnel 1a and exhalant canal 1b, intake tunnel 1a and exhalant canal 1b connect, spool 2 is loaded in the valve body 1 and between intake tunnel 1a and exhalant canal 1b, the inner of valve rod 3 is connected with spool 2, and the outer end of valve rod 3 passes valve body 1.In intake tunnel 1a, be provided with when fluid reflux, can block intake tunnel 1a and with the converse stopping mechanism 4 of intake tunnel 1a inwall circumferential seal, be provided with at the inner place of converse stopping mechanism 4 and can make converse stopping mechanism 4 the inners against thereon shoulder block 1c, the place, outer end of converse stopping mechanism 4 is provided with the barrier assembly 5 that can prevent that converse stopping mechanism 4 breaks away from intake tunnel 1a.Barrier assembly 5 comprises circular groove 5a and the snap ring 5b that is opened in place, converse stopping mechanism 4 outer ends, and snap ring 5b is loaded in the circular groove 5a.
As illustrated in fig. 1 and 2, converse stopping mechanism 4 comprises that converse stopping mechanism 4 comprises tubular first connecting sleeve 6, second connecting sleeve 7 and is positioned at the fuse 8 of second connecting sleeve 7.Link to each other by interface arrangment between first connecting sleeve 6 and second connecting sleeve 7, interface arrangment comprises the annular boss 7a that the annular slot 6a that first connecting sleeve, 6 inboards offer and second connecting sleeve, 7 outsides have, and annular boss 7a is connected in and makes first connecting sleeve 6 and second connecting sleeve 7 clamping mutually in the annular slot 6a.Have annular boss 7a in certain first connecting sleeve 6, the clamping that annular slot 6a can realize first connecting sleeve 6 and second connecting sleeve 7 is too offered in second connecting sleeve, 7 outsides.Such first connecting sleeve 6 and second connecting sleeve 7 can be connected together fast, are different from the past to be threaded processing and assembling efficient height between first connecting sleeve 6 and second connecting sleeve 7.
First connecting sleeve 6 has convex shoulder 6b, and second connecting sleeve 7 has the circumferentially fixing three floor 7b that equal angles distributes that are, and is connected with guide sleeve 9 at floor 7b middle part.Be provided with spring 10 between fuse 8 and the floor 7b, and fuse 8 has raised line 8a, raised line 8a passes spring 10 and guide sleeve 9 successively, is resisted against at fuse 8 under the effect of spring 10 like this and forms sealing on the convex shoulder 6b.
First connecting sleeve, 6 outsides are arranged with the seal ring 1 that forms circumferential seal with valve body 1 inwall, and fluid can not pass through between first connecting sleeve 6 and valve body 1 inwall, can only impact the elastic force that fuse 8 overcomes spring 10 and enter exhalant canal 1b.Fuse 8 outsides are arranged with and can contact the seal ring 2 12 that forms sealing with convex shoulder 6b, have improved the sealing between fuse 8 and the convex shoulder 6b like this.
Originally the separating valve that has the check function is when assembling, the raised line 8a of fuse 8 passes spring 10 and guide sleeve 9 successively, again second connecting sleeve 7 is inserted first connecting sleeve 6, both phase clampings, this moment, fuse 8 was on the convex shoulder 6b that is resisted against first connecting sleeve 6 under the effect of spring 10, then first connecting sleeve 6 and second connecting sleeve 7 are put into intake tunnel 1a, the inner of converse stopping mechanism 4 i.e. second connecting sleeve 7 is resisted against on the shoulder block 1c that valve body 1 has, in the circular groove 5a that on the valve body 1 at place, converse stopping mechanism 4 outer ends, offers snap ring 5b is installed at last, snap ring 5b prevents that converse stopping mechanism 4 breaks away from intake tunnel 1a, finished assembling like this, assembled efficient and convenient.
As shown in Figure 3, originally the separating valve that has a check function in use, the intake tunnel 1a end of valve body 1 is connected with hex union 13, the exhalant canal 1b end of valve body 1 is connected with outlet pipe 14, outlet pipe 14 ends also are connected with hex union 13, and the separating valve that this sample has the check function can link together with the water flowing pipe fitting easily.
Originally in separating valve when work that has the check function, make spool 2 rotations by rotation valve rod 3, and the rotation of spool 2 is blocked intake tunnel 1a and exhalant canal 1b or be open-minded, thus the closing or conducting of pilot line.And the open degree by valve rod 3 control spools 2 can control flow rate, has played the effect of regulating flow.After regulating flow, when fluid from intake tunnel 1a process, fluid impact fuse 8 and overcome the elastic force of spring 10, fuse 8 breaks away from convex shoulder 6b, fluid enters exhalant canal 1b from the gap between fuse 8 and second connecting sleeve 7, from outlet pipe 14 outflows; When fluid reflux, under the effect of the impact force of the elastic force of spring 10 and fluid reflux, fuse 8 and convex shoulder 6b against be seal ring 2 12 with convex shoulder 6b against, blocked intake tunnel 1a, fluid can not overflow from intake tunnel 1a, thereby can not cause the infringement that refluxes to the element that is connected with the separating valve that originally has the check function.
Embodiment 2
As shown in Figure 4, present embodiment is basic identical with embodiment 1 structure and principle, and different place is that the valve body 1 in the present embodiment is syphon shape, can directly connect the separating valve that originally has the check function in some places that need bend pipe to draw connection like this, connection is convenient and swift.
Specific embodiment described herein only is that the utility model spirit is illustrated.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 used terms such as valve body 1, intake tunnel 1a, exhalant canal 1b, shoulder block 1c, spool 2, valve rod 3, converse stopping mechanism 4, barrier assembly 5, circular groove 5a, snap ring 5b, first connecting sleeve 6, annular slot 6a, convex shoulder 6b, second connecting sleeve 7, annular boss 7a, floor 7b, fuse 8, raised line 8a, guide sleeve 9, spring 10, seal ring 1, seal ring 2 12, hex union 13, outlet pipe 14 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (7)
1. separating valve that has the check function, the valve body (1) that comprises have intake tunnel (1a) and exhalant canal (1b), spool (2) and valve rod (3), described intake tunnel (1a) connects with exhalant canal (1b), spool (2) is loaded in the valve body (1), the inner of described valve rod (3) is connected with spool (2), the outer end of valve rod (3) passes valve body (1), it is characterized in that, be provided with in the described intake tunnel (1a) when fluid reflux, can block intake tunnel (1a) and with the converse stopping mechanism (4) of intake tunnel (1a) inwall circumferential seal, be provided with at the inner place of converse stopping mechanism (4) and can make the inner shoulder block (1c) against thereon of converse stopping mechanism (4), the place, outer end of converse stopping mechanism (4) is provided with and can prevents that converse stopping mechanism (4) breaks away from the barrier assembly (5) of intake tunnel (1a).
2. the separating valve that has the check function according to claim 1 is characterized in that, described barrier assembly (5) comprises circular groove (5a) and the snap ring (5b) that is opened in place, converse stopping mechanism (4) outer end, and above-mentioned snap ring (5b) is loaded in the circular groove (5a).
3. the separating valve that has the check function according to claim 1 and 2, it is characterized in that, described converse stopping mechanism (4) comprises tubular first connecting sleeve (6), be arranged on second connecting sleeve (7) in first connecting sleeve (6) and be positioned at the fuse (8) of second connecting sleeve (7) by interface arrangment, described first connecting sleeve (6) has convex shoulder (6b), second connecting sleeve (7) has circumferentially fixing at least two floor (7b), be provided with spring (10) between above-mentioned fuse (8) and floor (7b), fuse under the effect of spring (10) (8) and above-mentioned convex shoulder (6b) are against forming sealing.
4. the separating valve that has the check function according to claim 3, it is characterized in that, described interface arrangment comprises the annular boss (7a) that the annular slot (6a) that first connecting sleeve (6) inboard offers and second connecting sleeve (7) outside have, and above-mentioned annular boss (7a) is connected in and makes first connecting sleeve (6) and second connecting sleeve (7) clamping mutually in the annular slot (6a).
5. the separating valve that has the check function according to claim 3 is characterized in that, described floor (7b) middle part is connected with guide sleeve (9), and described fuse (8) has raised line (8a), and raised line (8a) passes spring (10) and guide sleeve (9) successively.
6. the separating valve that has the check function according to claim 3 is characterized in that, described first connecting sleeve (6) outside is arranged with the seal ring one (11) that forms circumferential seal with valve body (1) inwall.
7. the separating valve that has the check function according to claim 3 is characterized in that, described fuse (8) outside is arranged with and can contacts the seal ring two (12) that forms sealing with convex shoulder (6b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203177493U CN201575204U (en) | 2009-12-18 | 2009-12-18 | Isolating valve with return-stopping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203177493U CN201575204U (en) | 2009-12-18 | 2009-12-18 | Isolating valve with return-stopping function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201575204U true CN201575204U (en) | 2010-09-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203177493U Expired - Lifetime CN201575204U (en) | 2009-12-18 | 2009-12-18 | Isolating valve with return-stopping function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201575204U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257869A (en) * | 2015-09-30 | 2016-01-20 | 南京理工大学 | Paste fuel gas generator anti-backfire device with double-security mechanism |
| CN108708996A (en) * | 2018-07-02 | 2018-10-26 | 上海银轮热交换系统有限公司 | Concealed check valve |
-
2009
- 2009-12-18 CN CN2009203177493U patent/CN201575204U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257869A (en) * | 2015-09-30 | 2016-01-20 | 南京理工大学 | Paste fuel gas generator anti-backfire device with double-security mechanism |
| CN105257869B (en) * | 2015-09-30 | 2018-01-05 | 南京理工大学 | The lotion gas generator fireproof tempering device of dual fail-safe mechanism |
| CN108708996A (en) * | 2018-07-02 | 2018-10-26 | 上海银轮热交换系统有限公司 | Concealed check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100908 |