CN210423846U - Water meter protection valve - Google Patents
Water meter protection valve Download PDFInfo
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- CN210423846U CN210423846U CN201921517647.6U CN201921517647U CN210423846U CN 210423846 U CN210423846 U CN 210423846U CN 201921517647 U CN201921517647 U CN 201921517647U CN 210423846 U CN210423846 U CN 210423846U
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Abstract
The utility model discloses a water meter protection valve, which comprises a valve body, a valve cover, a valve rod and a flashboard connected with the bottom end of the valve rod, wherein the two ends of the valve body are respectively provided with a water inlet end and a water outlet end, a water flow channel for medium circulation is arranged in the valve body, and one side of the valve body, which is positioned at the water outlet end relative to the flashboard, is provided with a cavity communicated with the water flow channel; still include non return mechanism, non return mechanism includes the case, establishes in the cavity and establishes sealing washer, clamping ring, spring and the holding ring on the case towards the play water end cover in proper order, be equipped with the bulge loop that is located the flowing water passageway and offsets with the sealing washer on the outer periphery wall of case, the sealing washer is located the intercommunication department of flowing water passageway and cavity, and is used for controlling both's intercommunication and cutting off. The utility model discloses can solve because of the water gauge rotation that the pipe network pressure differential caused and reversal phenomenon, this valve minimum start-up flow is greater than the minimum start-up flow of water gauge simultaneously, can solve the water gauge protection valve that the water clock appears the water clock of dribbling in the resident water.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to water gauge protection valve.
Background
China is a water-deficient country, and in daily life, water can continuously flow out once a water faucet is screwed, and the water can not be in danger at all. But in fact, we rely on water for survival, and are increasingly in short supply. The control of water supply leakage is one of important marks for establishing water-saving cities, and according to estimation, the leakage rate of a pipe network of a public water supply system of cities in China reaches 21.5 percent on average. Therefore, how to reduce the leakage rate of the urban water supply network and reduce the waste of water resources becomes a great importance in water supply work. Reducing the leakage rate of the water supply network is an effective way to save water resources. The frequent phenomenon of drippage of valve before the domestic consumer's water gauge causes the loss of a large amount of wastes and economy of water resource.
At present, a domestic meter front valve is usually a copper locking gate valve used as a water meter protection valve, but because the copper gate valve in China is made of brass and has too high lead content, the water safety of residents cannot be guaranteed, and meanwhile, the valve cannot solve the problem of water tap dripping, so that the water is dripped but does not flow out, and the loss of water resources is caused. Meanwhile, the existing meter front valve cannot solve the phenomena of water meter rotation and reversal caused by pipe network pressure difference, and the rotation and reversal of the water meter cause inaccurate data of the water meter and short service life, so that complaints of users are caused.
SUMMERY OF THE UTILITY MODEL
Based on the above problem, the utility model aims to provide a can solve because of the water gauge rotation and the reversal phenomenon that pipe network pressure differential caused, this valve minimum start-up flow is greater than the minimum start-up flow of water gauge simultaneously, can solve the water gauge protection valve that the water clock appears in the resident's water.
Aiming at the problems, the following technical scheme is provided: a water meter protection valve comprises a valve body, a valve cover, a valve rod and a flashboard connected with the bottom end of the valve rod, wherein a water inlet end and a water outlet end are respectively arranged at two ends of the valve body; still include non return mechanism, non return mechanism includes the case, establishes in the cavity and goes out the water end towards and establish sealing washer, clamping ring, spring and the holding ring on the case in proper order, be equipped with the bulge loop that is located the water channel and offsets with the sealing washer on the outer periphery of case, the sealing washer is located the intercommunication department of water channel and cavity, and is used for controlling both intercommunication and cutting off, the both ends of spring support respectively on clamping ring and holding ring, set up the opening that is linked together with the cavity on the holding ring, but the case is towards the reciprocating displacement of holding ring, it is equipped with rather than threaded connection's connector to go out the water end, be equipped with the through-hole that is linked together with the water channel on the connector.
In the structure, will the utility model discloses install on the pipeline before the water gauge, through the circulation or the cutting off of rotating the valve stem control flashboard in order to realize intaking end and play water end. When opening the valve, in the running water gets into the flowing water passageway from the end of intaking, the running water produced certain pressure to the bulge loop, can drive the plug and drive sealing washer and clamping ring towards the holding ring displacement, the spring compresses towards the holding ring for flowing water passageway and cavity are linked together, and the running water flows to the pipeline in through-hole back of connector is flowed in to the opening on the holding ring in the cavity, realizes the circulation of running water. When the pressure of the water outlet end is larger than that of the water inlet end, the pressing ring is driven to press the sealing ring through the elastic acting force of the spring and the pressure of tap water, so that the valve core is driven to reset towards the displacement of the water inlet end, the sealing ring is matched and sealed with the port of the water flowing channel, and the tap water is prevented from flowing into the water flowing channel from the cavity. Sealing washer and clamping ring pass through the hydraulic pressure and join in marriage and link to each other with the case to improve the joint strength between the three, prevented that the relative sealing washer of case or clamping ring from producing the displacement, improved the utility model discloses a leakproofness and reliability. The tap water can flow out of the water outlet end only through certain pressure by arranging the non-return mechanism, so that the minimum pressure of the tap water flowing out of the water outlet end can be controlled to be greater than the minimum starting pressure of the water meter, the dripping phenomenon is effectively avoided, and the utilization of water resources is saved. The non-return mechanism can also prevent the running water from flowing back to the water inlet end from the water outlet end, so that the water meter can be prevented from rotating and reversing, the service life of the water meter is prolonged, and the data precision is improved. Through setting up sealing washer and the cooperation of the soft seal of flowing water passageway inner wall, realized zero leakage, improved the utility model discloses a leakproofness and reliability. Can make it carry on spacingly to the holding ring through setting up the connector, and can be convenient for connecting tube, thereby improved the utility model discloses a reliability and convenience. Through setting up the bulge loop can prevent that the running water from directly producing pressure to the sealing washer when intaking and holding to reduced the sealing washer and produced wearing and tearing, prolonged the life of sealing washer, improved the utility model discloses a reliability and leakproofness.
The utility model discloses further set up to, one side that the bulge loop held towards intaking is equipped with the guide block.
The utility model discloses further set up to, the guide block is equipped with four at least, and circumference sets up on the outer periphery wall of case.
In the structure, can make the running water can flow to the cavity steadily after getting into the flowing water passageway through setting up four at least guide blocks, and can make the atress of bulge loop even more to the atress intensity and the stability of bulge loop have been improved, thereby have improved the utility model discloses a reliability.
The utility model discloses further set up as, it is equipped with rather than the arch of offseting to lie in the guide block towards one side of intaking the end in the flowing water passageway
Adopt above-mentioned structure, the relative sealing washer of case makes sealedly reveal towards the end displacement of intaking when preventing the running water backward flow that can be further to improved the utility model discloses the reliability of ending is contrary.
The utility model discloses further set up to, the spring adopts tower type spring, the one end that the tower type spring internal diameter is little supports on the terminal surface of holding ring.
Adopt above-mentioned structure, case drive sealing washer and clamping ring towards water outlet end displacement for the tower spring compresses, and tower spring occupation space after the compression is little, thereby has shortened the length of valve body, has reduced the utility model discloses a cost of manufacture. Support on the terminal surface of holding ring through the one end that the tower spring internal diameter is little, can make the one end that the internal diameter is big offset with the clamping ring to can make the running water need great pressure to promote the sealing washer displacement when flowing in the cavity from flowing water passageway, ensure that the pressure that promotes the sealing washer displacement is greater than the minimum starting pressure of water gauge, improve the utility model discloses a reliability, and can also improve the seal strength of sealing washer through the elasticity improvement sealing washer of tower spring, thereby improved the utility model discloses a backstop effect has improved the utility model discloses a reliability.
The utility model discloses further set up to, be equipped with the lug on the terminal surface of clamping ring orientation, the big pot head of tower spring internal diameter is located on the lug.
In the structure, the installation and the location of tower type spring can be convenient for through setting up the lug, have improved workman's work efficiency and tower type spring's stability, thereby improved the utility model discloses a reliability.
The utility model discloses further set up to, be equipped with the spacing groove with holding ring looks adaptation in the cavity.
In the structure, the positioning groove can be used for facilitating the installation and the limiting of the positioning ring, and the positioning ring is prevented from displacing under the pressure of tap water, so that the stress strength and the stability of the positioning ring are improved.
The utility model discloses further set up to, be equipped with sealed the pad between connector and the play water end.
In the structure, can improve the leakproofness between connector and the play water end through setting up sealed the pad, thereby improve the utility model discloses a reliability.
The utility model discloses further set up to, the valve gap top is seted up flutedly, the valve rod top upwards extends to in the recess, be equipped with the locking piece that the valve rod top was located to the cover in the recess, the lockhole has been seted up at the locking piece top.
Adopt above-mentioned structure, can make the utility model discloses need just can open or close through dedicated key, avoid other people maloperation, thereby improved the utility model discloses a security.
The utility model discloses further set up to, the valve gap top is equipped with the closing cap with recess threaded connection.
In the structure, can prevent through setting up the closing cap that dust and aqueous solution from getting into in the recess and leading to inside spare part to rust and damage, thereby prolonged the utility model discloses a life has improved the utility model discloses a reliability.
The utility model discloses further set up to, the valve body adopts the nodular cast iron material, and its interior surface spraying epoxy moulds the powder.
Adopt above-mentioned structure, can improve the utility model discloses an environmental protection sanitary degree, it is pollution-free to quality of water to ensure the quality of resident's water, improved the utility model discloses a reliability.
The utility model discloses further set up to, be equipped with the internal thread in the through-hole.
Adopt above-mentioned structure, can be convenient for the utility model discloses a threaded connection is convenient for on the pipeline the utility model discloses a dismouting, maintenance, thereby improved the utility model discloses a convenience.
The utility model has the advantages that: compare current water gauge protection valve, the utility model discloses can solve because of the water gauge rotation that pipe network pressure differential caused and reversal phenomenon, the minimum start-up flow that this valve minimum start-up flow is greater than the water gauge simultaneously can solve the water gauge protection valve that the water clock appears the water clock. The tap water can flow out of the water outlet end only through certain pressure by arranging the non-return mechanism, so that the minimum pressure of the tap water flowing out of the water outlet end can be controlled to be greater than the minimum starting pressure of the water meter, the dripping phenomenon is effectively avoided, and the utilization of water resources is saved. The non-return mechanism can also prevent the running water from flowing back to the water inlet end from the water outlet end, so that the water meter can be prevented from rotating and reversing, the service life of the water meter is prolonged, and the data precision is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view a-a of fig. 1.
Fig. 3 is the structure schematic diagram of the middle valve core, the sealing ring and the pressing ring of the present invention.
The reference numbers in the figures mean: 1-a valve body; 2-valve cover; 3-a valve stem; 4-a gate plate; 11-water inlet end; 12-water outlet end; 13-a water flow channel; 14-a cavity; 5-a non-return mechanism; 51-a valve core; 52-sealing ring; 53-a pressure ring; 54-a spring; 55-a positioning ring; 511-a convex ring; 551-port; 6-a connector; 61-a through hole; 512-a guide block; 131-protrusions; 531-bumps; 551-limit groove; 21-a groove; 7-locking the block; 71-a keyhole; 8-sealing the cover.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following embodiments are provided to illustrate the present invention, and the above and below terms of position relationship described herein correspond to the position relationship generated by the placing mode shown in the drawings, and are only used for convenience of description, and are not used to limit the scope of the present invention.
The water meter protection valve shown in fig. 1 to 3 comprises a valve body 1, a valve cover 2, a valve rod 3 and a gate plate 4 connected with the bottom end of the valve rod 3, wherein a water inlet end 11 and a water outlet end 12 are respectively arranged at two ends of the valve body 1, a water flow channel 13 for medium circulation is arranged in the valve body 1, and a cavity 14 communicated with the water flow channel 13 is arranged at one side of the gate plate 4, which is opposite to the water outlet end 12, in the valve body 1; still include non return mechanism 5, non return mechanism 5 includes case 51, establishes in cavity 14 and establishes sealing washer 52, clamping ring 53, spring 54 and holding ring 55 on case 51 in proper order towards play water end 12, be equipped with on case 51's the outer circumferential wall and be located flowing water passageway 13 and with the bulge loop 511 that sealing washer 52 offseted, sealing washer 52 is located flowing water passageway 13 and cavity 14's intercommunication department, and is used for controlling intercommunication between them and cuts off, spring 54's both ends support respectively on clamping ring 53 and holding ring 55, set up the through-hole 551 that is linked together with cavity 14 on the holding ring 55, case 51 towards holding ring 55 reciprocating displacement, it is equipped with rather than threaded connection's connector 6 to go out water end 12, be equipped with the through-hole 61 that is linked together with flowing water passageway 13 on the connector 6.
In the structure, will the utility model discloses install on the pipeline before the water gauge, through the circulation or the cutting off of rotating valve rod 3 control flashboard 4 in order to realize intaking end 11 and play water end 12. When the valve is opened, tap water enters the water flowing channel 13 from the water inlet end 11, the tap water generates a certain pressure on the convex ring 511, the valve core 51 can be driven to drive the sealing ring 52 and the pressing ring 53 to displace towards the positioning ring 55, the spring 54 compresses towards the positioning ring 55, the water flowing channel 13 is communicated with the cavity 14, and the tap water flows into the through hole 61 of the connector 6 from the cavity 14 through the through hole 551 on the positioning ring 55 and then flows out of the pipeline, so that the tap water flows. When the pressure of the water outlet end 12 is greater than the pressure of the water inlet end 11, the pressing ring 53 is driven to press the sealing ring 52 by the elastic acting force of the spring 54 and the pressure of the tap water, so that the valve core 51 is driven to displace and reset towards the water inlet end 11, the sealing ring 52 is matched and sealed with the port of the water flowing channel 13, and the tap water is prevented from flowing into the water flowing channel 13 from the cavity 14. Sealing washer 52 and clamping ring 53 pass through hydraulic pressure tight fit and link to each other with case 51 to improve the joint strength between the three, prevented that case 51 relative sealing washer 52 or clamping ring 53 from producing the displacement, improved the utility model discloses a leakproofness and reliability. The check mechanism 5 can enable tap water to flow out of the water outlet end 12 only through a certain pressure, so that the minimum pressure of the tap water flowing out of the water outlet end 12 can be controlled to be greater than the minimum starting pressure of the water meter, the dripping phenomenon is effectively avoided, and the water resource is saved. The non-return mechanism 5 can also prevent the running water from flowing back to the water inlet end 11 from the water outlet end 12, so that the water meter can be prevented from rotating and reversing, the service life of the water meter is prolonged, and the data precision is improved. Through setting up sealing washer 52 and the cooperation of the soft seal of flowing water passageway 13 inner wall, realized zero leakage, improved the utility model discloses a leakproofness and reliability. Can make it spacing to holding ring 55 through setting up connector 6, and the connecting tube that can be convenient for, thereby improved the utility model discloses a reliability and convenience. Directly produce pressure to sealing washer 52 when can prevent through setting up bulge loop 511 that the running water from intaking end 11 and getting into to reduced sealing washer 52 and produced wearing and tearing, prolonged sealing washer 52's life, improved the utility model discloses a reliability and leakproofness.
In this embodiment, a guide block 512 is disposed on one side of the convex ring 511 facing the water inlet end 11.
In this embodiment, at least four guide blocks 512 are provided, and are circumferentially disposed on the outer circumferential wall of the valve core 51.
In the structure, can make the running water flow to cavity 14 steadily after getting into flowing water passageway 13 through setting up four at least guide blocks 512, and can make the atress of bulge loop 511 even more to the atress intensity and the stability of bulge loop 511 have been improved, thereby have improved the utility model discloses a reliability.
In this embodiment, a protrusion 131 abutting against the guide block 512 is disposed at one side of the water flowing channel 13 facing the water inlet end 11
Adopt above-mentioned structure, the relative sealing washer 52 of case 51 makes sealedly reveal towards intaking end 11 displacement when can be further preventing running water backward flow to improved the utility model discloses the reliability of ending is contrary.
In this embodiment, the spring 54 is a tower spring 54, and the end of the tower spring 54 with a smaller inner diameter abuts against the end face of the positioning ring 55.
Adopt above-mentioned structure, case 51 drives sealing washer 52 and clamping ring 53 towards the displacement of play water end 12 for tower spring 54 compresses, and tower spring 54 occupation space after the compression is little, thereby has shortened the length of valve body 1, has reduced the utility model discloses a cost of manufacture. Support on the terminal surface of holding ring 55 through the one end that the internal diameter is little with tower spring 54, can make the one end that the internal diameter is big offset with clamping ring 53 to can make the running water need great pressure to promote the sealing washer 52 displacement when flowing into cavity 14 from flowing water passageway 13, the pressure of having ensured promoting the sealing washer 52 displacement is greater than the minimum starting pressure of water gauge, has improved the utility model discloses a reliability, and the elasticity that can also pass through tower spring 54 improves the sealing strength of sealing washer 52, thereby has improved the utility model discloses a backstop effect has improved the utility model discloses a reliability.
In this embodiment, a protrusion 531 is disposed on an end surface of the pressing ring 53, and the end of the tower spring 54 with a large inner diameter is sleeved on the protrusion 531.
In the structure, the installation and the location of tower spring 54 can be convenient for through setting up lug 531, workman's work efficiency and tower spring 54's stability has been improved to improve the utility model discloses a reliability.
In this embodiment, a limiting groove 551 adapted to the positioning ring 55 is disposed in the cavity 14.
In the structure, the positioning groove can facilitate installation and limiting of the positioning ring 55, and displacement of the positioning ring 55 due to pressure of tap water is prevented, so that the stress strength and stability of the positioning ring 55 are improved.
In this embodiment, a sealing gasket is disposed between the connector 6 and the water outlet end 12.
In the structure, can improve the leakproofness between connector 6 and the play water end 12 through setting up sealed the pad, thereby improved the utility model discloses a reliability.
In this embodiment, the top end of the valve cap 2 is provided with a groove 21, the top end of the valve rod 3 extends upwards into the groove 21, a locking block 7 sleeved on the top end of the valve rod 3 is arranged in the groove 21, and the top of the locking block 7 is provided with a locking hole 71.
Adopt above-mentioned structure, can make the utility model discloses need just can open or close through dedicated key, avoid other people maloperation, thereby improved the utility model discloses a security.
In this embodiment, the top end of the valve cap 2 is provided with a sealing cap 8 in threaded connection with the groove 21.
In the structure, can prevent through setting up closing cap 8 that dust and aqueous solution from getting into in the recess 21 and leading to inside spare part to rust and damage, thereby prolonged the utility model discloses a life has improved the utility model discloses a reliability.
In this embodiment, the valve body 1 is made of ductile cast iron, and the inner surface and the outer surface of the valve body are sprayed with epoxy resin molding powder.
Adopt above-mentioned structure, can improve the utility model discloses an environmental protection sanitary degree, it is pollution-free to quality of water to ensure the quality of resident's water, improved the utility model discloses a reliability.
In this embodiment, the through hole 61 is internally provided with an internal thread.
Adopt above-mentioned structure, can be convenient for the utility model discloses a threaded connection is convenient for on the pipeline the utility model discloses a dismouting, maintenance, thereby improved the utility model discloses a convenience.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a water gauge protection valve, includes valve body, valve gap, valve rod and the flashboard that links to each other with the valve rod bottom, the valve body both ends are equipped with respectively into water end and play water end, be equipped with the flowing water passageway that is used for the medium circulation in the valve body, its characterized in that: a cavity communicated with the water flowing channel is arranged on one side of the valve body, which is opposite to the water outlet end, in the valve body; still include non return mechanism, non return mechanism includes the case, establishes in the cavity and goes out the water end towards and establish sealing washer, clamping ring, spring and the holding ring on the case in proper order, be equipped with the bulge loop that is located the water channel and offsets with the sealing washer on the outer periphery of case, the sealing washer is located the intercommunication department of water channel and cavity, and is used for controlling both intercommunication and cutting off, the both ends of spring support respectively on clamping ring and holding ring, set up the opening that is linked together with the cavity on the holding ring, but the case is towards the reciprocating displacement of holding ring, it is equipped with rather than threaded connection's connector to go out the water end, be equipped with the through-hole that is linked together with the water channel on the connector.
2. A water meter protection valve in accordance with claim 1, wherein: one side of the convex ring facing the water inlet end is provided with a guide block.
3. A water meter protection valve in accordance with claim 2, wherein: the guide blocks are at least four and are circumferentially arranged on the outer circumferential wall of the valve core.
4. A water meter protection valve in accordance with claim 3, wherein: and a bulge which is abutted against the guide block is arranged on one side of the guide block facing the water inlet end in the water flowing channel.
5. A water meter protection valve in accordance with claim 1, wherein: the spring adopts a tower-shaped spring, and one end of the tower-shaped spring with a small inner diameter is propped against the end face of the positioning ring.
6. A water meter protection valve in accordance with claim 5, wherein: the pressing ring is arranged on the end face of the pressing ring, and one end, with the large inner diameter, of the tower-shaped spring is sleeved on the protruding block.
7. A water meter protection valve in accordance with claim 1, wherein: and a limiting groove matched with the positioning ring is arranged in the cavity.
8. A water meter protection valve in accordance with claim 1, wherein: the valve rod is characterized in that a groove is formed in the top end of the valve cover, the top end of the valve rod extends upwards into the groove, a locking block sleeved on the top end of the valve rod is arranged in the groove, and a locking hole is formed in the top of the locking block.
9. A water meter protection valve in accordance with claim 8, wherein: and the top end of the valve cover is provided with a sealing cover in threaded connection with the groove.
10. A water meter protection valve in accordance with claim 1, wherein: the valve body is made of nodular cast iron, and epoxy resin plastic powder is sprayed on the inner surface and the outer surface of the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921517647.6U CN210423846U (en) | 2019-09-11 | 2019-09-11 | Water meter protection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921517647.6U CN210423846U (en) | 2019-09-11 | 2019-09-11 | Water meter protection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423846U true CN210423846U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921517647.6U Active CN210423846U (en) | 2019-09-11 | 2019-09-11 | Water meter protection valve |
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| Country | Link |
|---|---|
| CN (1) | CN210423846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454595A (en) * | 2019-09-11 | 2019-11-15 | 开维喜阀门集团有限公司 | A kind of water meter protection valve |
-
2019
- 2019-09-11 CN CN201921517647.6U patent/CN210423846U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454595A (en) * | 2019-09-11 | 2019-11-15 | 开维喜阀门集团有限公司 | A kind of water meter protection valve |
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