WO2020233304A1 - Anti-idling water meter and operation method thereof - Google Patents

Anti-idling water meter and operation method thereof Download PDF

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Publication number
WO2020233304A1
WO2020233304A1 PCT/CN2020/085535 CN2020085535W WO2020233304A1 WO 2020233304 A1 WO2020233304 A1 WO 2020233304A1 CN 2020085535 W CN2020085535 W CN 2020085535W WO 2020233304 A1 WO2020233304 A1 WO 2020233304A1
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Prior art keywords
water
valve core
spring
spring seat
water meter
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PCT/CN2020/085535
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French (fr)
Chinese (zh)
Inventor
王庆保
丁保江
贾天具
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聊城市农业机械科学研究所
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Publication of WO2020233304A1 publication Critical patent/WO2020233304A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/02—Compensating or correcting for variations in pressure, density or temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/18—Supports or connecting means for meters
    • G01F15/185—Connecting means, e.g. bypass conduits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use

Definitions

  • the invention belongs to the technical field of liquid metering, in particular to an anti-idling water meter and a working method thereof.
  • the idling phenomenon of water meters for high-rise residential users is relatively prominent, and users are very disturbed by tens or hundreds of tons of water bills out of thin air.
  • the decoration and decoration such as the home floor are removed, and the decoration and decoration need to be restored after the removal, which is not only laborious, but also the financial loss is not small.
  • the inaccurate measurement caused by the idling of the water meter has led to water fee disputes, and the number of complaints from users to the water supply enterprise has increased, resulting in disputes. After the media exposure, it brought a negative impact on the social image of the water supply company and embarrassed the government supervision department.
  • the reasons for the idling of the water meter include:
  • the water supply pipe network is caused by the backflow of hot water from water heaters, solar water heaters, and toilet water.
  • the pollution and unsanitation of tap water caused by such backflow will affect the health of users, which is unacceptable to users.
  • the water supply pressure is unstable, and the water supply pressure fluctuation is the main reason for the idling of the water meter. Due to the high measurement sensitivity of the water meter, especially the secondary pressurized water supply in high-rise buildings, in the water supply pipeline, the water reflects a certain degree due to the relatively high pipeline pressure The compressibility. When the pressure in the pipe network fluctuates, it causes the volume of water to expand and compress. When the pressure increases, the volume of water in the pipe behind the meter will be compressed due to the increase in pressure. At this time, a small amount of water will pass through the water meter to produce Rotation; when the pressure is reduced, the compressed water is released, and a small amount of water will also pass through the water meter. Therefore, as long as the water pressure fluctuates once, the water meter will idling once. Frequent water pressure fluctuations will cause the user's water meter to idling more frequently. The water consumption has a large error.
  • the anti-idling water meter provided by the present invention achieves the purpose of reducing water metering errors.
  • the invention also provides the working method of the anti-idling water meter.
  • An anti-idling water meter including a metering mechanism, is characterized in that a first installation cavity and a second installation cavity are opened on the inner side wall of the water inlet pipe of the water meter, the first installation cavity is at the end of the water inlet pipe, and the first installation cavity
  • the inner diameter of a mounting cavity is greater than the inner diameter of the second mounting cavity; where the second mounting cavity is in contact with the inner wall of the water inlet pipe, a first spring seat is installed, a circulation hole is opened in the center of the first spring seat, and the first spring seat is A first spring is sleeved, and a first valve core is provided in the outer casing of the first spring; a sealing plate is installed at the end of the first installation cavity, and the central opening of the sealing plate is provided; a third The inner diameter of the third installation cavity is larger than the inner diameter of the outlet pipe and is located inside the end of the outlet pipe; a second spring seat is installed at the end of the outlet pipe, and a second spring is slee
  • the outer casing is provided with a second valve core; the first valve core and the second valve core are bell-shaped structures, one end is open, the other end is closed, and the side wall is evenly provided with water outlets, and the first valve core is closed The end contacts the sealing plate; the closed end of the second valve core contacts the wall of the third installation cavity.
  • the sealing plate is a circular plate with a central opening.
  • the first spring seat and the second spring seat are respectively T-shaped, and a circulation hole is opened at the center position.
  • the working method of the present invention includes the following steps:
  • the water pressure causes the first valve core to compress the first spring, and the water flow flows in from the self-sealing plate and the first valve core at intervals, and flows into the metering mechanism through the water outlet on the side wall of the first valve core and the flow hole of the spring seat;
  • the second valve core compresses the second spring, and the water flows out from the space between the second valve core and the third installation cavity through the water hole on the side wall of the second valve core and the flow hole of the second spring seat.
  • the water pressure prompts the first and second spools to compress the first spring and the second spring respectively.
  • the water flow passes through and the water meter counts normally; when the main water supply pipeline stops water, the solar water heater and electricity
  • Water heaters and toilets store water because the water meter has a one-way water flow function, which prevents the user from storing water backflow, and the water meter will naturally not run idling, and it also prevents the dirty storage of the toilet from polluting the tap water.
  • the expansion and contraction of the "compressed air" in the water pipe are also suppressed, reducing the possibility of the water meter idling, and reducing the measurement error caused by the water meter idling.
  • Figure 1 is a schematic diagram of the structure of the invention.
  • Metering mechanism 2.1. The first installation cavity; 2.2. The second installation cavity; 2.3. The first spring seat; 2.4. The first spring; 2.5. The first valve core; 2.51, the water outlet; 2.6. Plate; 3.1, the third mounting cavity; 3.2, the second spring seat; 3.3, the second spring; 3.4, the second valve core.
  • the present utility model provides an anti-idling water meter, including a metering mechanism 1.
  • the metering mechanism is a structure in the prior art, and is characterized in that the inner wall of the water inlet pipe of the water meter is provided with a first installation cavity 2.1 and The second installation cavity 2.2, the first installation cavity 2.1 is at the end of the inlet pipe, and the inner diameter of the first installation cavity 2.1 is greater than the inner diameter of the second installation cavity 2.2; the second installation cavity 2.2 is in contact with the inner wall of the inlet pipe ,
  • the first spring seat 2.3 is threadedly installed, a flow hole is opened in the center of the first spring seat 2.3, a first spring 2.4 is sleeved on the first spring seat 2.3, and a first valve core 2.5 is sleeved on the first spring 2.4
  • a sealing plate 2.6 is installed, the sealing plate 2.6 is a circular plate with a central opening; the first valve core 2.5 does
  • the inner diameter of the third installation cavity 3.1 is larger than the inner diameter of the outlet pipe and is located inside the end of the outlet pipe; at the end of the outlet pipe, a threaded fitting is installed
  • the second spring seat 3.2, the second spring 3.3 is sleeved on the second spring seat 3.2, and the second valve core 3.4 is sleeved on the second spring 3.3; the second valve core 3.4 does not contact the second spring seat 3.2, which is Compress the second spring 3.3 to leave space;
  • the first spool 2.5 and the second spool 3.4 have a bell-shaped structure, one end is open, the other end is closed, and the side wall is evenly provided with water outlets 2.51, the first The closed end of the valve core 2.5 contacts the sealing plate 2.6; the closed end of the second valve core 3.4 contacts the wall of the third mounting cavity 3.1;
  • the first spring seat 2.3 and the second spring seat 3.2 are T-shaped, in the center position There is a circulation hole.
  • the water pressure causes the first valve core 2.5 to compress the first spring 2.4, and the water flows into the space between the self-sealing plate 2.6 and the first valve core 2.5, passing through the side wall of the first valve core 2.5, the water outlet 2.51 and the first spring
  • the flow hole of the seat 2.3 flows into the metering mechanism; then the water pressure causes the second valve core 3.4 to compress the second spring 3.3, and the water flows from the space between the second valve core 3.3 and the third mounting cavity 3.1 through the side wall of the second valve core 3.3.
  • the flow hole flows out from the hole and the second spring seat 3.4.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

A anti-idling water meter, comprising a measurement mechanism (1), and a first mounting cavity (2.1) and a second mounting cavity (2.2) disposed at an inner wall of a water inlet pipe of the water meter; a first spring seat (2.3) being mounted at a point of contact between the second mounting cavity (2.2) and the inner wall of the water inlet pipe, a flow-through hole being disposed at a center of the first spring seat (2.3), a first spring (2.4) being sleeved over the first spring seat (2.3), and a first valve core (2.5) being sleeved oustide the first spring (2.4); a seal plate (2.6) being mounted at an end part of the first mounting cavity (2.1); a third mounting cavity (3.1) being disposed at an inner wall of a water outlet pipe of the water meter; a second spring seat (3.2) being mounted at an end part of the water outlet pipe, a second spring (3.3) being sleeved over the second spring seat (3.2), and a second valve core (3.4) being sleeved outside the second spring (3.3); also provided is an operation method of the anti-idling water meter. When water stops, because the water outlet end of the water meter has one-way flow functionality, this prevents retained water from flowing back, and the water meter will not idle; in addition, "compressed air" knocking and contraction in pipes is inhibited, and meter reading errors caused by water meter idling are decreased.

Description

一种防空转水表及其工作方法An anti-idling water meter and its working method 技术领域Technical field
本发明属于液体计量技术领域，具体属于一种防空转水表及其工作方法。The invention belongs to the technical field of liquid metering, in particular to an anti-idling water meter and a working method thereof.
背景技术Background technique
目前高层住宅用户水表空转现象比较突出，用户凭空多出几十、几百吨水费，都十分闹心。寻找泄漏点时，拆除家庭地板等装修装饰，拆除后还需要再恢复装修装饰，不仅仅劳神费力，财力损失也不小。水表空转造成的计量不准确,导致水费争议，用户对供水企业投诉增多，产生纠纷。媒体曝光后，给供水企业社会形象带来负面影响，也使政府监管部门比较尴尬。At present, the idling phenomenon of water meters for high-rise residential users is relatively prominent, and users are very disturbed by tens or hundreds of tons of water bills out of thin air. When looking for leaks, the decoration and decoration such as the home floor are removed, and the decoration and decoration need to be restored after the removal, which is not only laborious, but also the financial loss is not small. The inaccurate measurement caused by the idling of the water meter has led to water fee disputes, and the number of complaints from users to the water supply enterprise has increased, resulting in disputes. After the media exposure, it brought a negative impact on the social image of the water supply company and embarrassed the government supervision department.
水表空转的原因包括有：The reasons for the idling of the water meter include:
1)、在新安装水表或水表外移时，水表管道内的水被放空，安装完成通水后，管道中的空气被水流压力压向管道的各个盲端，形成“压缩空气”，气、水之间存在一个界面，此时界面两边的压差为零；而当水压发生变化时，界面两边就形成了一定的压差，气、水平衡被破坏；在达到新的压力平衡过程中，空气体积会发生变化，膨胀或收缩，而因空气体积的膨胀或收缩会导致水管内的水产生流动，现在的水表，特别是电子控制的水表都是高灵敏度的，进水、出水都计量，于是，“水表空转”现象就产生了。1) When the water meter is newly installed or the water meter is moved outside, the water in the water meter pipe is emptied. After the installation is completed, the air in the pipe is pressed to each blind end of the pipe by the water flow pressure, forming "compressed air". There is an interface between water, and the pressure difference between the two sides of the interface is zero at this time; and when the water pressure changes, a certain pressure difference is formed on both sides of the interface, and the balance of air and water is destroyed; in the process of reaching a new pressure balance , The air volume will change, expand or contract, and the expansion or contraction of the air volume will cause the water in the water pipe to flow. The current water meters, especially the electronically controlled water meters, are highly sensitive, and the water in and out are measured. , So, the "water meter idling" phenomenon occurs.
2)、供水管网中因热水器、太阳能热水器热水、马桶储水回流造成。这种回流造成的自来水污染、不卫生，会影响用户身体健康，是用户不能接受的。2) The water supply pipe network is caused by the backflow of hot water from water heaters, solar water heaters, and toilet water. The pollution and unsanitation of tap water caused by such backflow will affect the health of users, which is unacceptable to users.
3)、供水压力不稳，供水压力波动是导致水表空转的主要原因，由于水表计量灵敏度高，特别是高层楼房二次加压供水，在供水管道中，由于管道压力 比较高，水体现出一定的可压缩性。当管网中压力波动变化时，造成水的体积膨胀和压缩，当压力升高时，表后管中的水体积会因压力升高而压缩，此时就会有少量的水通过水表，产生自转；当压力降低时，被压缩水量释放，同样会有少量的水通过水表，因而只要水压波动一次，水表就会空转一次，频繁的水压波动会造成用户水表空转次数较多，计量的用水量误差较大。3) The water supply pressure is unstable, and the water supply pressure fluctuation is the main reason for the idling of the water meter. Due to the high measurement sensitivity of the water meter, especially the secondary pressurized water supply in high-rise buildings, in the water supply pipeline, the water reflects a certain degree due to the relatively high pipeline pressure The compressibility. When the pressure in the pipe network fluctuates, it causes the volume of water to expand and compress. When the pressure increases, the volume of water in the pipe behind the meter will be compressed due to the increase in pressure. At this time, a small amount of water will pass through the water meter to produce Rotation; when the pressure is reduced, the compressed water is released, and a small amount of water will also pass through the water meter. Therefore, as long as the water pressure fluctuates once, the water meter will idling once. Frequent water pressure fluctuations will cause the user's water meter to idling more frequently. The water consumption has a large error.
发明内容Summary of the invention
本发明所提供的一种防空转水表，以达到减小水量计量误差的目的。The anti-idling water meter provided by the present invention achieves the purpose of reducing water metering errors.
同时，本发明还提供了上述防空转水表的工作方法。At the same time, the invention also provides the working method of the anti-idling water meter.
一种防空转水表，包括有计量机构，其特征在于，在水表的进水管内侧壁，开设有第一安装腔与第二安装腔，所述的第一安装腔处于进水管端部，且第一安装腔的内径大于第二安装腔内径；所述的第二安装腔与进水管内壁接触处，安装有第一弹簧座，在第一弹簧座中心开设有流通孔，在第一弹簧座上套设有第一弹簧，在第一弹簧外套设有第一阀芯；在第一安装腔的端部，安装有封板，封板中心开口；在水表的出水管内侧壁，开设有第三安装腔，第三安装腔内径大于出水管内径，且处于出水管端部内侧；在出水管端部安装有第二弹簧座，在第二弹簧座上套设有第二弹簧，在第二弹簧外套设有第二阀芯；所述的第一阀芯、第二阀芯为钟罩状结构，一端开口，另一端封闭，并在侧壁面上均匀开设有流水口，第一阀芯的封闭端接触封板；第二阀芯的封闭端接触在第三安装腔壁上。An anti-idling water meter, including a metering mechanism, is characterized in that a first installation cavity and a second installation cavity are opened on the inner side wall of the water inlet pipe of the water meter, the first installation cavity is at the end of the water inlet pipe, and the first installation cavity The inner diameter of a mounting cavity is greater than the inner diameter of the second mounting cavity; where the second mounting cavity is in contact with the inner wall of the water inlet pipe, a first spring seat is installed, a circulation hole is opened in the center of the first spring seat, and the first spring seat is A first spring is sleeved, and a first valve core is provided in the outer casing of the first spring; a sealing plate is installed at the end of the first installation cavity, and the central opening of the sealing plate is provided; a third The inner diameter of the third installation cavity is larger than the inner diameter of the outlet pipe and is located inside the end of the outlet pipe; a second spring seat is installed at the end of the outlet pipe, and a second spring is sleeved on the second spring seat. The outer casing is provided with a second valve core; the first valve core and the second valve core are bell-shaped structures, one end is open, the other end is closed, and the side wall is evenly provided with water outlets, and the first valve core is closed The end contacts the sealing plate; the closed end of the second valve core contacts the wall of the third installation cavity.
优选地，所述的封板为中心开口的圆板。Preferably, the sealing plate is a circular plate with a central opening.
优选地，所述的第一弹簧座与第二弹簧座分别为T型，在中心位置开设有流通孔。Preferably, the first spring seat and the second spring seat are respectively T-shaped, and a circulation hole is opened at the center position.
本发明的工作方法，包括如下步骤：The working method of the present invention includes the following steps:
在水流经过时，水压使第一阀芯压缩第一弹簧，水流自封板与第一阀芯间隔流入，经过第一阀芯的侧壁流水口与弹簧座流通孔流入计量机构；之后水压使第二阀芯压缩第二弹簧，水流自第二阀芯与第三安装腔之间的间隔流经第二阀芯侧壁流水孔与第二弹簧座流通孔流出。When the water flow passes, the water pressure causes the first valve core to compress the first spring, and the water flow flows in from the self-sealing plate and the first valve core at intervals, and flows into the metering mechanism through the water outlet on the side wall of the first valve core and the flow hole of the spring seat; The second valve core compresses the second spring, and the water flows out from the space between the second valve core and the third installation cavity through the water hole on the side wall of the second valve core and the flow hole of the second spring seat.
本发明的有益效果：The beneficial effects of the present invention:
正常供水时，水压力促使将第一阀芯与第二阀芯分别压缩第一弹簧与第二弹簧，水流正常通过，水表计数正常；当供水主管道停水时，表后的太阳能热水器、电热水器、马桶储水因水表出水端具有单向水流功能，从而杜绝了用户储水回流，水表自然不会出现空转，也防止了马桶不洁储水污染自来水。而且水管中的“压缩空气”膨胀、收缩也受到抑制，减小水表空转的可能性，并降低水表空转所导致的计量误差。During normal water supply, the water pressure prompts the first and second spools to compress the first spring and the second spring respectively. The water flow passes through and the water meter counts normally; when the main water supply pipeline stops water, the solar water heater and electricity Water heaters and toilets store water because the water meter has a one-way water flow function, which prevents the user from storing water backflow, and the water meter will naturally not run idling, and it also prevents the dirty storage of the toilet from polluting the tap water. In addition, the expansion and contraction of the "compressed air" in the water pipe are also suppressed, reducing the possibility of the water meter idling, and reducing the measurement error caused by the water meter idling.
附图说明Description of the drawings
图1为发明的结构示意图。Figure 1 is a schematic diagram of the structure of the invention.
图中：1、计量机构；2.1、第一安装腔；2.2、第二安装腔；2.3、第一弹簧座；2.4、第一弹簧；2.5、第一阀芯；2.51、流水口；2.6、封板；3.1、第三安装腔；3.2、第二弹簧座；3.3、第二弹簧；3.4、第二阀芯。In the figure: 1. Metering mechanism; 2.1. The first installation cavity; 2.2. The second installation cavity; 2.3. The first spring seat; 2.4. The first spring; 2.5. The first valve core; 2.51, the water outlet; 2.6. Plate; 3.1, the third mounting cavity; 3.2, the second spring seat; 3.3, the second spring; 3.4, the second valve core.
具体实施方式Detailed ways
下面通过具体实施方式，对本发明内容作进一步说明。Hereinafter, the content of the present invention will be further described through specific embodiments.
参见附图，本实用新型提供了一种防空转水表，包括有计量机构1，计量机构为现有技术中结构，其特征在于，在水表的进水管内侧壁，开设有第一安装腔2.1与第二安装腔2.2，所述的第一安装腔2.1处于进水管端部，且第一安装 腔2.1的内径大于第二安装腔2.2内径；所述的第二安装腔2.2与进水管内壁接触处，螺纹安装有第一弹簧座2.3，在第一弹簧座2.3中心开设有流通孔，在第一弹簧座2.3上套设有第一弹簧2.4，在第一弹簧2.4外套设有第一阀芯2.5；在第一安装腔2.1的端部，安装有封板2.6，所述的封板2.6为中心开口的圆板；第一阀芯2.5与第一弹簧座2.3不接触，为压缩第一弹簧2.4留出空间；在水表的出水管内侧壁，开设有第三安装腔3.1，第三安装腔3.1的内径大于出水管内径，且处于出水管端部内侧；在出水管端部，螺纹配合安装有第二弹簧座3.2，在第二弹簧座3.2上套设有第二弹簧3.3，在第二弹簧3.3外套设有第二阀芯3.4；第二阀芯3.4与第二弹簧座3.2不接触，为压缩第二弹簧3.3留出空间；所述的第一阀芯2.5、第二阀芯3.4为钟罩状结构，一端开口，另一端封闭，并在侧壁面上均匀开设有流水口2.51，第一阀芯2.5的封闭端接触封板2.6；第二阀芯3.4的封闭端接触在第三安装腔3.1壁上；所述的第一弹簧座2.3与第二弹簧座3.2为T型，在中心位置开设有流通孔。With reference to the drawings, the present utility model provides an anti-idling water meter, including a metering mechanism 1. The metering mechanism is a structure in the prior art, and is characterized in that the inner wall of the water inlet pipe of the water meter is provided with a first installation cavity 2.1 and The second installation cavity 2.2, the first installation cavity 2.1 is at the end of the inlet pipe, and the inner diameter of the first installation cavity 2.1 is greater than the inner diameter of the second installation cavity 2.2; the second installation cavity 2.2 is in contact with the inner wall of the inlet pipe , The first spring seat 2.3 is threadedly installed, a flow hole is opened in the center of the first spring seat 2.3, a first spring 2.4 is sleeved on the first spring seat 2.3, and a first valve core 2.5 is sleeved on the first spring 2.4 At the end of the first installation cavity 2.1, a sealing plate 2.6 is installed, the sealing plate 2.6 is a circular plate with a central opening; the first valve core 2.5 does not contact the first spring seat 2.3, which is the compression first spring 2.4 Leave space; on the inner wall of the outlet pipe of the water meter, a third installation cavity 3.1 is opened. The inner diameter of the third installation cavity 3.1 is larger than the inner diameter of the outlet pipe and is located inside the end of the outlet pipe; at the end of the outlet pipe, a threaded fitting is installed The second spring seat 3.2, the second spring 3.3 is sleeved on the second spring seat 3.2, and the second valve core 3.4 is sleeved on the second spring 3.3; the second valve core 3.4 does not contact the second spring seat 3.2, which is Compress the second spring 3.3 to leave space; the first spool 2.5 and the second spool 3.4 have a bell-shaped structure, one end is open, the other end is closed, and the side wall is evenly provided with water outlets 2.51, the first The closed end of the valve core 2.5 contacts the sealing plate 2.6; the closed end of the second valve core 3.4 contacts the wall of the third mounting cavity 3.1; the first spring seat 2.3 and the second spring seat 3.2 are T-shaped, in the center position There is a circulation hole.
实施例2Example 2
本发明的工作方法：The working method of the present invention:
在水流经过时，水压使第一阀芯2.5压缩第一弹簧2.4，水流自封板2.6与第一阀芯2.5之间间隔流入，经过第一阀芯2.5的侧壁流水口2.51与第一弹簧座2.3流通孔流入计量机构；之后水压使第二阀芯3.4压缩第二弹簧3.3，水流自第二阀芯3.3与第三安装腔3.1之间的间隔流经第二阀芯3.3侧壁流水孔与第二弹簧座3.4流通孔流出。When the water flow passes, the water pressure causes the first valve core 2.5 to compress the first spring 2.4, and the water flows into the space between the self-sealing plate 2.6 and the first valve core 2.5, passing through the side wall of the first valve core 2.5, the water outlet 2.51 and the first spring The flow hole of the seat 2.3 flows into the metering mechanism; then the water pressure causes the second valve core 3.4 to compress the second spring 3.3, and the water flows from the space between the second valve core 3.3 and the third mounting cavity 3.1 through the side wall of the second valve core 3.3. 3.4 The flow hole flows out from the hole and the second spring seat 3.4.

Claims (4)

  1. 一种防空转水表，包括有计量机构，其特征在于，在水表的进水管内侧壁，开设有第一安装腔与第二安装腔，所述的第一安装腔处于进水管端部，且第一安装腔的内径大于第二安装腔内径；所述的第二安装腔与进水管内壁接触处，安装有第一弹簧座，在第一弹簧座中心开设有流通孔，在第一弹簧座上套设有第一弹簧，在第一弹簧外套设有第一阀芯；在第一安装腔的端部，安装有封板，封板中心开口；在水表的出水管内侧壁，开设有第三安装腔，第三安装腔内径大于出水管内径，且处于出水管端部内侧；在出水管端部安装有第二弹簧座，在第二弹簧座上套设有第二弹簧，在第二弹簧外套设有第二阀芯；所述的第一阀芯、第二阀芯为钟罩状结构，一端开口，另一端封闭，并在侧壁面上均匀开设有流水口，第一阀芯的封闭端接触封板；第二阀芯的封闭端接触在第三安装腔壁上。An anti-idling water meter, including a metering mechanism, is characterized in that a first installation cavity and a second installation cavity are opened on the inner side wall of the water inlet pipe of the water meter, the first installation cavity is at the end of the water inlet pipe, and the first installation cavity The inner diameter of a mounting cavity is greater than the inner diameter of the second mounting cavity; where the second mounting cavity is in contact with the inner wall of the water inlet pipe, a first spring seat is installed, a circulation hole is opened in the center of the first spring seat, and the first spring seat is A first spring is sleeved, and a first valve core is provided in the outer casing of the first spring; a sealing plate is installed at the end of the first installation cavity, and the center of the sealing plate is opened; on the inner side wall of the outlet pipe of the water meter, a third The inner diameter of the third installation cavity is larger than the inner diameter of the outlet pipe and is located inside the end of the outlet pipe; a second spring seat is installed at the end of the outlet pipe, and a second spring is sleeved on the second spring seat. The outer casing is provided with a second valve core; the first valve core and the second valve core are bell-shaped structures, one end is open, the other end is closed, and the side wall is evenly provided with water outlets, and the first valve core is closed The end contacts the sealing plate; the closed end of the second valve core contacts the wall of the third installation cavity.
  2. 根据权利要求1所述的防空转水表，其特征在于，所述的封板为中心开口的圆板。The anti-idling water meter according to claim 1, wherein the sealing plate is a circular plate with a central opening.
  3. 根据权利要求1所述的防空转水表，其特征在于，所述的第一弹簧座与第二弹簧座分别为T型，在中心位置开设有流通孔。The anti-idling water meter according to claim 1, wherein the first spring seat and the second spring seat are respectively T-shaped, and a flow hole is opened at the center.
  4. 一种根据权利要求1所述的防空转水表的工作方法，其特征在于，包括如下步骤：A working method for an anti-idling water meter according to claim 1, characterized in that it comprises the following steps:
    在水流经过时，水压使第一阀芯压缩第一弹簧，水流自封板与第一阀芯间隔流入，经过第一阀芯的侧壁流水口与弹簧座流通孔流入计量机构；之后水压使第二阀芯压缩第二弹簧，水流自第二阀芯与第三安装腔之间的间隔流经第二阀芯侧壁流水孔与第二弹簧座流通孔流出。When the water flow passes, the water pressure causes the first valve core to compress the first spring, and the water flow flows in from the self-sealing plate and the first valve core at intervals, and flows into the metering mechanism through the water outlet on the side wall of the first valve core and the flow hole of the spring seat; The second valve core compresses the second spring, and the water flows out from the space between the second valve core and the third installation cavity through the water hole on the side wall of the second valve core and the flow hole of the second spring seat.
PCT/CN2020/085535 2019-05-17 2020-04-20 Anti-idling water meter and operation method thereof WO2020233304A1 (en)

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