CN201627937U - Check water nozzle - Google Patents
Check water nozzle Download PDFInfo
- Publication number
- CN201627937U CN201627937U CN2009203143552U CN200920314355U CN201627937U CN 201627937 U CN201627937 U CN 201627937U CN 2009203143552 U CN2009203143552 U CN 2009203143552U CN 200920314355 U CN200920314355 U CN 200920314355U CN 201627937 U CN201627937 U CN 201627937U
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- water nozzle
- spring
- return
- return water
- closeouts
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Abstract
The utility model provides a check water nozzle belonging to the technical field of mechanism, which solves the problem that the existing water nozzle has no backflow protection. The check water nozzle comprises a water nozzle body, a valve core, a valve rod and a handle, wherein the valve core is arranged in the water nozzle body; one end of the valve rod is connected with the valve core, and the other end extending the water nozzle body is fixedly connected with the handle; a water flowing passage is arranged in the water nozzle body; and a check mechanism capable of enabling water to only singly flow along the water flowing passage is arranged in the water flowing passage. The check mechanism is arranged in the water flowing passage, so as to effectively prevent pollution to a water source due to backflow of water.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of water nozzle, particularly a kind of water nozzle with back flow protection.
Background technique
Often use water nozzle in daily life and the industrial production, the kitchen guarding's product commonly used in the daily life for example, the utilization in perhaps watering appliance in the garden, and industrial production and the Water and Waste Water Engineering all relates to water nozzle.
When water nozzle uses in pipe-line system, its water outlet place might contact addle, perhaps the water outlet place also is connected with pipeline, close or water source when interrupting when the water route in this case, owing to may have negative pressure in the pipeline, the current that flow out water nozzle might flow backwards and come back in the water nozzle, even enter in the water supply line, cause the water source contaminated; If the water outlet of water nozzle contact addle also might be brought addle in the pipeline into, especially at the water nozzle of some tall buildings uses, because the hydraulic pressure instability, the water source often interrupts, and this phenomenon is particularly serious.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of water nozzle with check function, and it is provided with non-return mechanism in the water nozzle body, makes current unidirectionally to flow out.
The purpose of this utility model can realize by following technical proposal: a kind of non-return water nozzle, comprise water nozzle body, spool, valve rod and handle, described spool is arranged in the body, described valve rod one end is connected with spool, the other end stretches out body and is connected with handle, have flow channel in the described body, it is characterized in that, be provided with in the described flow channel and make the current can only be along the non-return mechanism of the unidirectional outflow of flow channel.
This non-return water nozzle is connected in the pipeline, and when water nozzle was opened, fluid can only unidirectionally flow out, and when closing the water source or supply water interruption, because the protection of non-return mechanism in the water nozzle, current can not blow back in the water supply line, thereby have guaranteed that water quality is not contaminated
In above-mentioned a kind of non-return water nozzle, described non-return mechanism comprises spring and is fixed on the tubular support of exhalant canal inwall, support one end has the spring scaffold, the other end has an annular convex shoulder, described spring one end is resisted against on the spring scaffold, the other end is towards convex shoulder and be resisted against on the closeouts, and described closeouts can be resisted against on the convex shoulder of support and with convex shoulder and form sealing.
When current ingoing stream passage, because the effect of water flow pressure, spring is compressed, then closeouts is backed down, and current can flow out along flow channel, when water nozzle is closed or current when interrupting, closeouts since the effect of spring be resisted against all the time on the convex shoulder of support, thereby current can not be flow backwards.
In above-mentioned a kind of non-return water nozzle, described closeouts is a shutoff sheet.The shutoff sheet can be resisted against on the convex shoulder and form sealing.
As another kind of scheme, in above-mentioned a kind of non-return water nozzle, described closeouts is a ball sealer, and along being the conical surface, described ball sealer can be resisted against on this conical surface in the described convex shoulder.Utilize the cooperation of the ball sealer and the conical surface, make its sealability more reliable.
In above-mentioned a kind of non-return water nozzle, be provided with one between described closeouts and the spring scaffold and be used for guide mechanism that closeouts is led.
In above-mentioned a kind of non-return water nozzle, described guide mechanism comprises the pilot hole that is provided with on the guide rod that is arranged in the support and the spring scaffold, and guide rod one end is connected on the closeouts, and the other end passes pilot hole, and described spring housing is in the guide rod outside.
In above-mentioned a kind of non-return water nozzle, described spring is the turriform spring, and the big end of described turriform spring radius is resisted against on the spring scaffold, and the end that radius is little is resisted against on the closeouts.Utilize the stable characteristics of turriform spring axis, can not twist when making length of spring compressed, guaranteed the working life of spring.
As another scheme, in above-mentioned a kind of non-return water nozzle, described non-return mechanism comprises a tubular support, support one end has an annular convex shoulder, the hinged shutoff sheet of rack inner wall is provided with one and can makes the shutoff sheet at the flexible restoring organ that is not subjected to be close to all the time under the external force effect convex shoulder on the articulating point of shutoff sheet.
When current flow through this non-return mechanism, because the water flow pressure effect makes the shutoff sheet break away from ring-shaped step along articulating point, thereby current can be flowed out by exhalant canal, when current are closed or disconnect, the shutoff sheet guarantees that current can not flow backwards because the effect of flexible restoring organ is resisted against on the convex shoulder all the time.
In above-mentioned a kind of non-return water nozzle, described flow channel comprises intake tunnel and exhalant canal, and described non-return mechanism is arranged in the exhalant canal.
In above-mentioned a kind of non-return water nozzle, has a ring-shaped step in the described exhalant canal, the end that described support has convex shoulder is resisted against on this ring-shaped step, and spring scaffold one end fixes in exhalant canal by a snap ring that is fixedly mounted on the exhalant canal inwall.
In above-mentioned a kind of non-return water nozzle, described snap ring is the opening ring-type, and described exhalant canal inwall is provided with an annular groove near spring scaffold outer end, and described snap ring fixes in this annular groove.During installation, ball sealer or shutoff sheet, spring, support are respectively charged in the exhalant canal, annular groove is near the support setting, thereby only needs snap ring is fixed in this annular groove, and then supporting position is fixed.
In above-mentioned a kind of non-return water nozzle, also be provided with non-return mechanism two in the described intake tunnel.This non-return mechanism two is arranged in the intake tunnel; with the anti-back flow performance of further reinforcement water nozzle, make that the intrinsic current of water nozzle can not flow backwards yet when current interrupted; occur when unusual when the non-return mechanism performance in the exhalant canal simultaneously, the intake tunnel place can carry out the non-return protection equally.
In above-mentioned a kind of non-return water nozzle, described water nozzle body is provided with the venting gas appliance that is communicated with above-mentioned intake tunnel.
In above-mentioned a kind of non-return water nozzle, described venting gas appliance comprises and is opened in the relief opening that is communicated with above-mentioned intake tunnel on the body, and the exhaust ports sealing is stifled to be provided with dismountable blocking cap.
Compared with prior art; this non-return water nozzle is provided with non-return mechanism in exhalant canal; make current unidirectionally to flow out; guaranteed that current can not produce refluence because of a variety of causes; thereby guarantee that the water source is not contaminated, in intake tunnel, also be provided with non-return mechanism simultaneously, prevent that the intrinsic water of water nozzle from flowing backwards; even the non-return mechanism in the exhalant canal takes place unusual, the intake tunnel place also can further carry out back flow protection.
Description of drawings
Fig. 1 is the structural representation of this non-return water nozzle.
Fig. 2 is the structural representation of non-return mechanism among this non-return water nozzle embodiment one.
Fig. 3 is the structural representation of non-return mechanism among this non-return water nozzle embodiment two.
Fig. 4 is the structural representation of non-return mechanism among this non-return water nozzle embodiment three.
Among the figure, 1, body; 1a, spool; 1b, valve rod; 1c, handle; 2, intake tunnel; 3, exhalant canal; 31, ring-shaped step; 32, annular groove; 4, spring; 5, support; 51, spring scaffold; 52, convex shoulder; 53, seal ring; 6, shutoff sheet; 7, ball sealer; 81, guide rod; 82, pilot hole; 9, snap ring; 10, non-return mechanism; 11, non-return mechanism two; 12, relief opening; 13, blocking cap; 14, seal ring two.
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 depicted in figs. 1 and 2, this non-return water nozzle comprises water nozzle body 1, spool 1a, valve rod 1b and handle 1c, described spool 1a is arranged in the body 1, described valve rod 1b one end is connected with spool 1a, the other end stretches out body 1 and is connected with handle 1c, has flow channel 1d in the described body 1, and flow channel 1d comprises intake tunnel 2 and exhalant canal 3, one non-return mechanism 10 is set in the exhalant canal 3, makes that current can only be by unidirectional outflow in the exhalant canal 3.This non-return mechanism 10 comprises spring 4 and the cylindrical stent 5 that is fixed in the exhalant canal 3, support 5 one ends have a spring scaffold 51, the other end is provided with an annular convex shoulder 52, spring 4 one ends are resisted against on the spring scaffold 51, the other end is inner and be resisted against on the shutoff sheet 6 towards exhalant canal 3, and this shutoff sheet 6 can be resisted against under the external force effect on the convex shoulder 52 of support 5 all the time not being subjected to.Also be provided with a guide mechanism between shutoff sheet 6 and the support 5, make shutoff sheet 6 can break away from convex shoulder 52 under the water flow pressure effect, thereby current are passed through, shutoff sheet 6 can reset under guide mechanism and spring 4 effects when current were closed, and prevented that current from flowing backwards.This guide mechanism comprise be arranged in the support 5 guide rod 81 and be arranged on pilot hole 82 on the spring scaffold 51, guide rod 81 1 ends are connected on the shutoff sheet 6, the other end passes pilot hole 82, and guide rod 81 is movably connected in the pilot hole 82, and spring 4 axially is wrapped in guide rod 81 outer ends.
When packing into this non-return mechanism 10 in the exhalant canal 3, at first spring 4, shutoff sheet 6 and guide mechanism are installed in the support 5, then support 5 is packed in the exhalant canal 3, and by seal ring 53 sealings, one ring-shaped step 31 is set in the exhalant canal 3, the end that support 5 has convex shoulder 52 is resisted against on the ring-shaped step 31, and spring scaffold 51 1 ends are provided with a snap ring 9 that is installed in exhalant canal 3 inwalls and are fixed, and then support 5 positions are fixed.Processing and installation for making things convenient for snap ring 9 are set to the opening ring-type with snap ring 9, and at exhalant canal 3 inwalls one annular groove 32 are set, only need during installation this snap ring 9 is fixed in annular groove 32, snap ring 9 fixed-site then, thus with support 5 fixed-site, 10 of whole non-return mechanisms are fixed.
For further strengthening the non-return protective function of this non-return water nozzle; in intake tunnel 2, be provided with one equally and make the non-return mechanism 2 11 that fluid can only unidirectional inflow; non-return mechanism 10 structures in this non-return mechanism 2 11 and the exhalant canal 3 are identical; unique different to be its installation direction opposite with installation direction in the exhalant canal 3, makes current unidirectionally to flow into.Its effect is to prevent that the fluid that is in the body 1 from flowing backward in the pipeline, when the non-return mechanism in the exhalant canal 3 10 breaks down, can provide further back flow protection simultaneously.Shutoff sheet 6 in the above-mentioned non-return mechanism 10 and support 5 can adopt stainless steel material to make, and also can adopt plastic materials to make, and in the present embodiment, shutoff sheet 6 and support 5 adopt plastic materials to make.
Also be provided with the relief opening 12 that is communicated with intake tunnel 2 on the body 1 of this non-return water nozzle, the sealing of relief opening 12 places is blocked up and is provided with dismountable blocking cap 13.Shaft-like blocking cap 13 the inners are screwed in the relief opening 5 by threaded connection relation, and the outer end is hexagon, stay the outside.Be socketed with seal ring 2 14 on the blocking cap 13.Intake tunnel 2 is connected with supply channel, when air enters supply channel, blocking cap 7 is screwed out, and utilizes the hydraulic pressure of pipeline water supply end that air is discharged from relief opening 5.
This non-return water nozzle is connected in the water supply and drainage pipeline, when water nozzle is opened, current are flowed into by intake tunnel 2, because current have certain pressure, the shutoff sheet 6 of the non-return mechanism 2 11 in the intake tunnel 2 is backed down, thereby current flow to body 1, and by exhalant canal 3, be provided with non-return mechanism 10 in the exhalant canal 3 equally, water flow pressure is backed down the back by exhalant canal 3 outflows with the shutoff sheet 6 of non-return mechanism 10.When manual-lock water nozzle or water supply interruption, water flow pressure disappears, then shutoff sheet 6 since the effect of spring 4 exhalant canal 3 and intake tunnel 2 are closed, thereby guaranteed that current can not flow backwards, be that current can not flow backwards and enter water supply line, contaminated to prevent the current in the water supply line.
As shown in Figure 3, the structural principle of present embodiment and embodiment's one structural principle is basic identical, different places are: in the non-return mechanism that is provided with in this non-return water nozzle, spring 4 is the turriform spring, the turriform spring is a kind of spring 4 that is similar to pagoda shape, spring 4 radiuses are descending to successively decrease step by step, the end that this turriform spring radius is big is resisted against on the spring scaffold 51, the end that radius is little is resisted against on the shutoff sheet 6, the axle center of spring 4 and guide rod 81 axis coincidings, make spring 4 when compression, can not twist, guaranteed the working life of spring 4.Shutoff sheet 6 in the non-return mechanism and support 5 can adopt stainless steel material to make, and also can adopt plastic materials to make, and in the present embodiment, shutoff sheet 6 and support 5 adopt plastic materials to make.
Embodiment 3
As shown in Figure 4, the structural principle of present embodiment and embodiment's one structural principle is basic identical, different places are: the non-return mechanism in this non-return water nozzle comprises spring 4 and is fixed on the tubular support 5 of exhalant canal 3 inwalls, support 5 one ends have spring scaffold 51, the other end has an annular convex shoulder 52, spring 4 one ends are resisted against on the spring scaffold 51, and the other end is inner and be resisted against on the ball sealer 7 towards exhalant canal 3, and ball sealer 7 can be resisted against on the convex shoulder 52 of support 5.For the sealing that guarantees that sphere cooperates with convex shoulder 52, the conical surface is arranged on the interior edge of convex shoulder 52, ball sealer 7 can be resisted against on this conical surface, utilize the cooperation of the ball sealer 7 and the conical surface, make the sealability of its anti-back flow more reliable.
The structural principle of present embodiment and embodiment's one structural principle is basic identical, different places are: the non-return mechanism in this non-return water nozzle comprises a tubular support, support one end has an annular convex shoulder, the hinged shutoff sheet of rack inner wall, and a flexible restoring organ is set on the articulating point of shutoff sheet, do the time spent and can break away from convex shoulder when the shutoff sheet is subjected to water flow pressure around articulating point, thereby current are passed through, when current interrupt or are closed, the shutoff sheet guarantees that the water in the exhalant canal 3 can not flow backwards because the effect of flexible restoring organ is resisted against on the convex shoulder all the time.Identical with embodiment one, the end that support has convex shoulder is resisted against on the ring-shaped step 31 that is provided with in the exhalant canal 3, and the other end fixes by a snap ring 9.
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.
Claims (10)
1. non-return water nozzle, comprise water nozzle body (1), spool (1a), valve rod (1b) and handle (1c), described spool (1a) is arranged in the body (1), described valve rod (1b) end is connected with spool (1a), the other end stretches out body (1) and is connected with handle (1c), described body has flow channel in (1), it is characterized in that, is provided with in the described flow channel to make the current can only be along the non-return mechanism (10) of the unidirectional outflow of flow channel.
2. a kind of non-return water nozzle according to claim 1, it is characterized in that, described non-return mechanism (10) comprises spring (4) and is fixed on the tubular support (5) of exhalant canal (3) inwall, support (5) one ends have spring scaffold (51), the other end has an annular convex shoulder (52), described spring (4) one ends are resisted against on the spring scaffold (51), the other end is towards convex shoulder (52) and be resisted against on the closeouts, and the convex shoulder (52) that described closeouts can be resisted against support (5) is gone up and formed sealing with convex shoulder (52).
3. a kind of non-return water nozzle according to claim 2 is characterized in that, described closeouts is a shutoff sheet (6).
4. a kind of non-return water nozzle according to claim 2 is characterized in that, described closeouts is a ball sealer (7), and along being the conical surface, described ball sealer (7) can be resisted against on this conical surface in the described convex shoulder (52).
5. according to claim 2 or 3 or 4 described a kind of non-return water nozzles, it is characterized in that, be provided with one between described closeouts and the spring scaffold (51) and be used for guide mechanism that closeouts is led.
6. a kind of non-return water nozzle according to claim 5, it is characterized in that, described guide mechanism comprises guide rod (81) and the last pilot hole (82) that is provided with of spring scaffold (51) that is arranged in the support (5), guide rod (81) one ends are connected on the closeouts, the other end passes pilot hole (82), and described spring (4) is enclosed within guide rod (81) outside.
7. according to claim 2 or 3 or 4 described a kind of non-return water nozzles, it is characterized in that described spring (4) is the turriform spring, the big end of described turriform spring radius is resisted against on the spring scaffold (51), and the end that radius is little is resisted against on the closeouts.
8. a kind of non-return water nozzle according to claim 1, it is characterized in that, described non-return mechanism (10) comprises a tubular support (5), support (5) one ends have an annular convex shoulder (52), the hinged shutoff sheet (6) of support (5) inwall is provided with one and can makes shutoff sheet (6) at the flexible restoring organ that is not subjected to be close to all the time under the external force effect convex shoulder (52) on the articulating point of shutoff sheet (6).
9. according to claim 2 or 3 or 4 or 8 described a kind of non-return water nozzles, it is characterized in that described flow channel comprises intake tunnel (2) and exhalant canal (3), described non-return mechanism (10) is arranged in the exhalant canal (3).
10. a kind of non-return water nozzle according to claim 9 is characterized in that, also is provided with non-return mechanism two (11) in the described intake tunnel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203143552U CN201627937U (en) | 2009-11-09 | 2009-11-09 | Check water nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203143552U CN201627937U (en) | 2009-11-09 | 2009-11-09 | Check water nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201627937U true CN201627937U (en) | 2010-11-10 |
Family
ID=43059329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203143552U Expired - Lifetime CN201627937U (en) | 2009-11-09 | 2009-11-09 | Check water nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201627937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302030A (en) * | 2018-01-30 | 2018-07-20 | 浙江大农实业股份有限公司 | High pressure check valve suitable for cleaning machine high-pressure plunger pump |
| CN111820745A (en) * | 2019-08-06 | 2020-10-27 | 宁波白蚁网络科技有限公司 | Universal scavenging cover |
-
2009
- 2009-11-09 CN CN2009203143552U patent/CN201627937U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302030A (en) * | 2018-01-30 | 2018-07-20 | 浙江大农实业股份有限公司 | High pressure check valve suitable for cleaning machine high-pressure plunger pump |
| CN111820745A (en) * | 2019-08-06 | 2020-10-27 | 宁波白蚁网络科技有限公司 | Universal scavenging cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG HUALONG JUSHUI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHEJIANG HUALONG VALVE CO., LTD. Effective date: 20120210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317605 TAIZHOU, ZHEJIANG PROVINCE TO: 317606 TAIZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120210 Address after: 317606 Zhejiang province Yuhuan County Town Industrial Park Patentee after: Zhejiang Valogin Technology Co., Ltd. Address before: Truman Town Industrial Zone Yuhuan County Pu Tian Taizhou city in Zhejiang province 317605 Patentee before: Zhejiang Hualong Valves Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101110 |