CN115700354A - Anti-freezing low-power-consumption passive self-control water meter - Google Patents

Abstract

The invention discloses an anti-freezing low-power-consumption passive automatic control water meter, and relates to the technical field of water meters. The application includes: the anti-freezing device comprises an anti-freezing box, a water inlet valve is fixedly arranged at one end in the anti-freezing box in a penetrating mode, a mechanical water meter arranged in the anti-freezing box is fixedly communicated with one end of the water inlet valve, a water outlet valve is fixedly arranged at the other end of the anti-freezing box in a penetrating mode, and an electric control water meter arranged in the anti-freezing box is fixedly communicated with one end of the water outlet valve; automatic clearance subassembly, including dismantling the end cover of connection in mechanical water gauge bottom, rotate on the end cover and run through and install the pivot, the outer filter screen of upper end fixedly connected with of pivot. This application is through the outside of preventing frostbite case protection equipment not by the frostbite, and automatic clearance subassembly then clears up outer filter screen and interior filter screen in the mechanical water gauge, avoids blockking up, ensures the unobstructed of rivers, makes equipment can normal function, and sets up the essence and strain the subassembly then can reduce water source impurity, cooperates dual measured data, the measurement accuracy of effectual improvement automatically controlled water gauge.

Description

Anti-freezing low-power-consumption passive self-control water meter

Technical Field

The application relates to the technical field of water meters, in particular to an anti-freezing passive automatic control water meter with low power consumption.

Background

The water meter is a meter for measuring water flow, mostly for measuring accumulated flow of water, and generally includes two types, namely a positive displacement water meter and a velocity water meter.

The water meter is installed in almost every family resident family of our country to what most of installations all is speed formula water meter, and inside water meter that is provided with the impeller promptly, in the cold winter in northern area, there is following problem in the use of water meter:

1. in the weather that the temperature is lower than zero, water is easy to freeze, and the water meter is easy to freeze due to long-time exposure to the outside, so that the pipeline and the water meter are damaged;

2. in low-temperature weather, residents generally do not always use tap water, so that a water source in a pipeline connected with the water meter is easy to cause local freezing under the condition of no flow for a long time, water in a semi-frozen state can block the rotation of impellers in the water meter, the rotation of the impellers is too slow, the counting accuracy is influenced, and the water flow flows at a low speed for a long time, so that the water is easy to completely freeze, and the problem of internal blockage is caused;

3. when the speed type water meter is used daily, impurities carried in a water source can influence the counting accuracy of the water meter, and the existing water meter does not have the function of verifying data and cannot filter the water source in a refined manner;

therefore, the application provides a low-power consumption passive automatic control water gauge of type that prevents frostbite.

Disclosure of Invention

The purpose of this application lies in: in order to solve the problems in the background technology, the application provides an anti-freezing low-power-consumption passive automatic control water meter.

The following technical scheme is specifically adopted in order to achieve the purpose:

an anti-freezing type low-power-consumption passive automatic control water meter comprises:

the anti-freezing device comprises an anti-freezing box, a water inlet valve is fixedly arranged at one end in the anti-freezing box in a penetrating mode, a mechanical water meter arranged in the anti-freezing box is fixedly communicated with one end of the water inlet valve, a water outlet valve is fixedly arranged at the other end of the anti-freezing box in a penetrating mode, and an electric control water meter arranged in the anti-freezing box is fixedly communicated with one end of the water outlet valve;

the automatic cleaning assembly comprises an end cover detachably connected to the bottom of the mechanical water meter, a rotating shaft is rotatably arranged on the end cover in a penetrating mode, an outer filter screen is fixedly connected to the upper end of the rotating shaft, an inner filter screen detachably connected with the inner wall of the mechanical water meter is inserted into the outer filter screen in a rotating mode, and a hydrodynamic transmission part used for driving the rotating shaft to rotate is arranged between the mechanical water meter and the water inlet valve;

the fine filtering assembly comprises a column pipe with an opening at the bottom, a water inlet pipe which is arranged close to the top of the column pipe and used for communicating a mechanical water meter is formed in one side of the column pipe, a water outlet pipe which is arranged close to the bottom of the column pipe and used for communicating an electric control water meter is formed in the other side of the column pipe, and a filter screen frame communicated with the water inlet pipe can be detachably inserted in the bottom of the column pipe.

Further, the anti-freezing box comprises a metal box body, the upper end of the metal box body is provided with an opening and is hinged with a transparent sealing plate, a heat preservation layer is connected to the inner wall of the metal box body, and the heat preservation layer is covered with a damp-proof plate.

Furthermore, the mechanical water meter comprises a meter shell with an opening at the lower end, connecting pipes communicated with the water inlet valve and the fine filtering component are respectively constructed at two ends of the meter shell, two inserting columns are arranged at the inner top of the meter shell, two lantern rings sleeved with the inserting columns are constructed at the upper end of the inner filter screen, an impeller magnetic steel transmission part is arranged between the inner filter screen and the meter shell, and a counter is fixedly connected at the upper end of the meter shell.

Further, automatically controlled water gauge includes dry-type water gauge, dry-type water gauge top one side fixedly connected with controller, controller one side structure has the battery jar, the battery jar interpolation is equipped with the battery, the battery jar open end articulates there is the joint apron, pass through wire electric connection between controller and battery and the counter.

Furthermore, the dry water meter, the counter and the display end of the controller are hinged with a flip cover, and the inner side of the flip cover is pasted with heat insulation cotton.

Furthermore, a spring one-way valve is fixedly communicated with the water outlet end of the dry water meter.

Furthermore, the hydrodynamic force transmission part comprises a rectangular frame fixedly communicated with one end of the water inlet valve, a post rod is installed in the rectangular frame in a rotating mode, a water wheel located in the rectangular frame is connected to the post rod, two U-shaped supporting seats are arranged at the bottom of the anti-freezing box, a transmission rod is installed on the U-shaped supporting seats in a rotating mode, and two ends of the transmission rod are respectively in transmission connection with the post rod and the rotating shaft through bevel gears.

Further, the bottom of the case portion of preventing frostbite is constructed and is included the installing port of mechanical water gauge and column jacket, it has the bottom to articulate in the installing port, the other end of bottom is constructed and is had the snap ring, the bottom of the case portion of preventing frostbite rotates installs the rotatory joint piece that runs through the snap ring, U type supporting seat fixed connection is at the upper surface of bottom.

Furtherly, the ladder groove that is located the inlet tube below is constructed in the pillar tube, the screen frame includes threaded connection at the dome of ladder groove open end, cover through support column fixedly connected with upper end for the thin screen panel of open-ended on the dome, thin screen panel's top is contradicted at the interior top in ladder groove.

Furthermore, the water inlet pipe is tangent to the inner wall of the column tube, a spiral screen plate with one end tangent to the water inlet pipe is constructed on the inner wall of the fine filter screen cover, and the spiral screen plate is made of activated carbon.

The beneficial effects of this application are as follows:

1. this application is through setting up the case that prevents frostbite, can be effectual with mechanical water gauge and automatically controlled water gauge and even all parcel of general part inside, carry out certain isolation with it and external temperature to the temperature that guarantee mechanical water gauge and automatically controlled water gauge were located avoids it to be damaged by freezing because of the temperature that hangs down excessively, increases the security of equipment.

2. This application is through setting up mechanical water gauge and automatically controlled water gauge to be in the same place with its intercommunication, can be through the contrast to both measured data, average data's accuracy is reduced the produced error size when single water gauge is measured, and can also carry out effectual filtration through the water source of smart subassembly with passing through mechanical water gauge, thereby guarantee that the count accuracy of follow-up automatically controlled water gauge is not influenced by the impurity in the water source.

3. This application can drive the outer filter screen in the automatic clearance subassembly through hydrodynamic force driving medium and rotate, and interior filter screen then is connected spacingly with mechanical water gauge, under the drive of rivers, outer filter screen can effectually rub the clearance to interior filter screen, not only ensured that the circulation of outer filter screen and interior filter screen is smooth and easy, and can be when water is soon to freeze, make rivers produce the motion, thereby make the ice crystal melt fast, the unobstructed of guarantee pipeline, prevent to freeze the shutoff, increase the security.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a semi-sectional view of the perspective structure of FIG. 1 of the present application;

FIG. 3 is a partial perspective view of the present application;

FIG. 4 is a semi-sectional view of the embodiment of FIG. 3;

FIG. 5 is a perspective view of the freeze protection box of the present application;

FIG. 6 is a semi-sectional view of the freeze box of the present application in perspective;

FIG. 7 is a half sectional view of yet another partial perspective structure of the present application;

FIG. 8 is a semi-sectional view of another partial perspective structure of the present application;

FIG. 9 is a perspective view of a fine filter assembly according to the present application in a semi-sectional view;

reference numerals are as follows: 1. an anti-freezing box; 101. a metal box body; 102. a transparent sealing plate; 103. a heat-insulating layer; 104. a moisture barrier; 105. an installation port; 106. a bottom cover; 107. a snap ring; 108. rotating the clamping block; 2. a water inlet valve; 3. a mechanical water meter; 301. a watch case; 302. a connecting pipe; 303. inserting a column; 304. an impeller magnetic steel transmission part; 305. a counter; 4. a water outlet valve; 5. an electric control water meter; 501. a dry water meter; 5011. a spring check valve; 502. a controller; 503. a battery case; 504. a storage battery; 505. clamping the cover plate; 6. automatically cleaning the assembly; 601. an end cap; 602. a rotating shaft; 603. an outer filter screen; 604. an inner filter screen; 6041. a collar; 7. a hydrodynamic drive component; 701. a rectangular frame; 702. a post rod; 703. a water wheel; 704. a U-shaped supporting seat; 705. a transmission rod; 8. a fine filter assembly; 801. a column tube; 8011. a stepped groove; 802. a water inlet pipe; 803. a water outlet pipe; 804. a screen frame; 8041. a dome; 8042. a support column; 8043. a fine filter screen cover; 8044. a spiral screen plate; 9. a flip cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

As shown in fig. 1, 3, 7, 8 and 9, an embodiment of the present application provides an antifreeze type passive automatic water meter with low power consumption, which includes:

the water supply device comprises an anti-freezing box 1, wherein a water inlet valve 2 is fixedly arranged at one end in the anti-freezing box 1 in a penetrating manner, a mechanical water meter 3 arranged in the anti-freezing box 1 is fixedly communicated with one end of the water inlet valve 2, a water outlet valve 4 is fixedly arranged at the other end of the anti-freezing box 1 in a penetrating manner, an electric control water meter 5 arranged in the anti-freezing box 1 is fixedly communicated with one end of the water outlet valve 4, the mechanical water meter 3 and the electric control water meter 5 are arranged between the water inlet valve 2 and the water outlet valve 4, and the water source in the mechanical water meter 3 and the electric control water meter 5 can be cut off by closing the water outlet valve 4 and the water inlet valve 2 simultaneously, so that the operation of the water meter is stopped, and the subsequent maintenance and replacement are facilitated;

an automatic cleaning assembly 6, including an end cover 601 detachably connected to the bottom of the mechanical water meter 3, a rotating shaft 602 is rotatably installed through the end cover 601, an outer strainer 603 is fixedly connected to the upper end of the rotating shaft 602, an inner strainer 604 detachably connected to the inner wall of the mechanical water meter 3 is rotatably inserted into the outer strainer 603, a hydrodynamic transmission member 7 for driving the rotating shaft 602 to rotate is disposed between the mechanical water meter 3 and the water inlet valve 2, the hydrodynamic transmission member 7 drives the rotating shaft 602 to rotate by using the power of water flow, so as to drive the outer strainer 603 in the mechanical water meter 3 to synchronously rotate, at this time, the inner strainer 604 and the inner wall of the mechanical water meter 3 are in a connected state and remain stationary, the rotation of the outer strainer 603 and the inner strainer 604 can mutually rub against each other, so that the water source in the mechanical water meter 3 continuously moves in cold weather, and the water freezes in the environment, but the water does not continuously move, the water has a constant temperature reduced to the freezing point, and is not easily supplemented by water with a high temperature, thereby preventing the water source from being condensed, and in daily use, the outer strainer 603 and the inner strainer can always keep smooth friction with the flow of the impurities, thereby preventing the clogging of the water from being blocked, and ensuring the impurities;

the fine filtering component 8 comprises a column pipe 801 with an opening at the bottom, a water inlet pipe 802 which is arranged close to the top of the column pipe 801 and is used for communicating the mechanical water meter 3 is formed at one side of the column pipe 801, a water outlet pipe 803 which is arranged close to the bottom of the column pipe 801 and is used for communicating the electric control water meter 5 is formed at the other side of the column pipe 801, a filter screen frame 804 which is communicated with the water inlet pipe 802 is detachably inserted at the bottom of the column pipe 801, the fine filtering component 8 is communicated between the mechanical water meter 3 and the electric control water meter 5 through the water inlet pipe 802 and the water outlet pipe 803, so that a water source can firstly carry out primary coarse filtering through an outer filter screen 603 and an inner filter screen 604, and then secondary filtering is carried out on water passing through the mechanical water meter 3 through the filter screen frame 804, thereby achieving the fine filtering effect, reducing the content of impurities in water flow, avoiding influencing the data measurement of the subsequent electric control water meter 5, and carrying out neutralization and averaging through the data of the mechanical water meter 3, further improving the accuracy of accurate counting, and improving the measurement accuracy of the water meter;

the whole equipment wraps up the mechanical water meter 3 and the electric control water meter 5 and is connected with general parts through the anti-freezing box 1, certain isolation is carried out on the whole equipment and the external temperature, thereby the temperature in the anti-freezing box 1 is ensured, the mechanical water meter 3 and the electric control water meter 5 are prevented from being damaged due to freezing due to too low temperature, the safety of the equipment is improved, the automatic cleaning assembly 6 is arranged, the water source circulation inside the mechanical water meter 3 can be ensured, the circulation of the whole equipment is ensured, the data measurement is convenient, the impurity content in a water source is reduced through the fine filtering assembly 8, the data accuracy of the electric control water meter 5 is ensured, the measured data can be compared with the measured data of the mechanical water meter 3 on average to obtain more accurate data, the double measurement improves the measurement accuracy of the equipment, and the stability of the data measurement is ensured.

As shown in fig. 5 and fig. 6, in some embodiments, the anti-freezing box 1 includes a metal box body 101, the metal box body 101 is made of stainless steel, the external protection capability of the equipment is improved, the damage caused by external impact is avoided, the safety of the equipment is improved, the upper end of the metal box body 101 is provided with a transparent sealing plate 102 in an opening and hinged mode, the transparent sealing plate 102 is arranged to be convenient for people to observe internal parts, so that the use of the people is facilitated, the convenience is improved, a heat insulation layer 103 is connected to the inner wall of the metal box body 101, a moisture-proof plate 104 covers the heat insulation layer 103, the heat insulation layer 103 is made of foam plate materials, the moisture-proof plate 104 is made of hard polyurethane plates, the anti-freezing box has good moisture resistance and water resistance, the heat conductivity coefficient cannot be increased due to moisture absorption, the internal temperature of the metal box body 101 is effectively guaranteed, the internal parts are prevented from being frozen out due to rapid temperature reduction, and the anti-freezing effect is improved.

As shown in fig. 8, in some embodiments, the mechanical water meter 3 includes a housing 301 having an open lower end, two ends of the housing 301 are respectively configured with a connecting pipe 302 communicating with the water inlet valve 2 and the fine filtering component 8, two insertion posts 303 are disposed at an inner top of the housing 301, two collars 6041 sleeved with the insertion posts 303 are configured at an upper end of the inner filter 604, the insertion posts 303 are configured to enable the collars 6041 and the two insertion posts 303 to be inserted into each other after the inner filter 604 is installed in the housing 301, so that the inner filter 604 cannot rotate, when the outer filter 603 rotates through the hydrodynamic transmission 7, friction can be generated between the outer filter 603 and the inner filter 604, so as to effectively clean impurities and prevent water from freezing, an impeller magnetic steel transmission 304 is disposed between the inner filter 604 and the housing 301, a counter 305 is fixedly connected to an upper end of the housing 301, the top of the housing 301 includes a water storage frame for rotatably installing the impeller, a magnetic block is connected to an upper end of the impeller, a transmission magnetic post disposed opposite to the magnetic block is disposed in the counter 305, rotation of the impeller, thereby increasing data of the counter 305, and increasing the data of the counter 305.

As shown in fig. 3 and 4, in some embodiments, the electrically controlled water meter 5 includes a dry water meter 501, the dry water meter 501 is the same as the existing isolated water meter, and all uses magnetic steel transmission to operate, the water source in the water meter is not in contact with the counting device, so as to effectively prevent the counting device inside the water meter from being damaged after the water source is frozen in cold weather, and improve safety, one side of the top of the dry water meter 501 is fixedly connected with a controller 502, the controller 502 is used for collecting data in the counting device of the dry water meter 501, and a signal generator is also arranged in the controller 502 for transmitting signals to a network, one side of the controller 502 is configured with a battery tank 503, a battery 504 is inserted in the battery tank 503, and the battery 504 is arranged to provide electric energy for the controller 502, need not external power supply and can use, the condition of the unable work of controller 502 during having avoided the power failure takes place, battery jar 503 open end articulates there is joint apron 505, pass through wire electric connection between controller 502 and battery 504 and the counter 305, set up the wire, can make battery 504 provide the electric energy for controller 502 and counter 305 in step, and controller 502 can be with the data reception in the counter 305, synchronous upload the network, through the contrast to two sets of data, can clearly learn whether mechanical water meter 3 and 5 inside have too big data error with automatically controlled water meter, thereby judge personnel whether overhaul, very big increase the convenience of maintenance, and during less error, also can carry out on average more accurate rivers data that obtain with two sets of data, increase measuring accuracy.

As shown in fig. 3, in some embodiments, the display ends of the dry water meter 501, the counter 305, and the controller 502 are hinged to a flip 9, the inside of the flip 9 is pasted with heat insulation cotton, the display ends of the dry water meter 501, the counter 305, and the controller 502 can be further protected by the arrangement of the flip 9, and the display ends are made of glass for displaying data, so that the display ends are more easily damaged by low temperature, and the heat insulation cotton can effectively block the external temperature to protect the safety of the display ends.

As shown in fig. 2, in some embodiments, the water outlet end of the dry water meter 501 is fixedly connected to a spring check valve 5011, so as to effectively prevent the backflow of the water source and prevent the data of the electrically controlled water meter 5 and the mechanical water meter 3 from being affected.

As shown in fig. 7, in some embodiments, the hydrodynamic transmission element 7 includes a rectangular frame 701 fixedly connected to one end of the water inlet valve 2, a post 702 is rotatably installed in the rectangular frame 701, a water wheel 703 located in the rectangular frame 701 is connected to the post 702, two U-shaped support bases 704 are disposed at the bottom of the anti-freezing box 1, a transmission rod 705 is rotatably installed on the U-shaped support bases 704, two ends of the transmission rod 705 are respectively connected to the post 702 and the rotating shaft 602 through a bevel gear in a transmission manner, and the hydrodynamic transmission element 7 operates in a manner that the water wheel 703 is driven to rotate in the rectangular frame 701 through the passage of water flow, so as to drive the post 702 to rotate, and the rotating shaft 602 is driven to rotate synchronously through the transmission of the bevel gear and the transmission rod 705, and the rotation of the rotating shaft 602 can drive the outer screen 603 and the inner screen 604 to generate rotational friction, so that impurities in meshes of the outer screen 603 and the inner screen 604 can be scraped and removed, thereby preventing blockage due to long-time accumulation and ensuring the flow performance.

As shown in fig. 5-7, in some embodiments, the bottom of the anti-freeze box 1 is configured with an installation port 105 including the mechanical water meter 3 and the column tube 801, a bottom cover 106 is hinged in the installation port 105, a snap ring 107 is configured at the other end of the bottom cover 106, a rotary clamping block 108 penetrating through the snap ring 107 is rotatably installed at the bottom of the anti-freeze box 1, a strip-shaped hole is formed in the snap ring 107, the rotary clamping block 108 is a combination of a cylinder and a strip-shaped clamping block, the bottom cover 106 can be fixed in a limited manner by rotating after penetrating through the strip-shaped hole, a U-shaped supporting seat 704 is fixedly connected to the upper surface of the bottom cover 106, the detachable connection of the transmission rod 705 can be realized by providing the U-shaped supporting seat 704, and in order to detach the end cover 601, the transmission rod needs to be detached first, so that the installation port 105 is provided at the bottom of the anti-freeze box 1, the end cover 601 and the filter frame 705 can be detached conveniently, and when the transmission rod 106 is detached from the bevel gear 602 and the column tube 702, the transmission rod can be repaired and replaced conveniently.

As shown in fig. 9, in some embodiments, a stepped groove 8011 located below the water inlet pipe 802 is configured in the column pipe 801, the screen frame 804 includes a round cover 8041 screwed to an open end of the stepped groove 8011, a fine screen cover 8043 with an opening at an upper end is fixedly connected to the round cover 8041 through a support column 8042, a top of the fine screen cover 8043 abuts against an inner top of the stepped groove 8011, when the screen frame 804 is detached and replaced, the support column 8042 and the fine screen cover 8043 are driven to move downward synchronously by rotating the round cover 8041, so that the fine screen cover 8043 is completely detached from the column pipe 801, and when the screen frame is installed, the stepped groove 8011 is operated in a reverse direction, and the top of the fine screen cover 8043 can be closed by the stepped groove 8011, and the opening of the fine screen cover 8043 is communicated with the water inlet pipe 802, a diameter of the stepped groove 8011 is larger than a diameter of the fine screen cover 8043, and water flow can flow into the water outlet pipe 803 through the fine screen cover 8043, so as to clean impurities and collect and dispose impurities through the filter screen 8043.

As shown in fig. 9, in some embodiments, the water inlet pipe 802 is arranged tangentially to the inner wall of the column pipe 801, the inner wall of the fine screen cover 8043 is configured with a spiral screen 8044 having one end arranged tangentially to the water inlet pipe 802, the spiral screen 8044 is made of activated carbon, the arrangement of the spiral screen 8044 can cause a spiral flow after the water enters from the water inlet pipe 802, so that the water is in large area to rapidly contact with the spiral screen 8044 made of activated carbon, impurities contained in the water are trapped, and the water can flow out from the side and the bottom even if the impurities are too much accumulated, the speed of the water cannot be affected, and the filtering effect is improved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a low-power consumption passive automatic control water gauge of type that prevents frostbite, its characterized in that includes:

the anti-freezing device comprises an anti-freezing box (1), wherein a water inlet valve (2) is fixedly arranged at one end in the anti-freezing box (1) in a penetrating manner, a mechanical water meter (3) arranged in the anti-freezing box (1) is fixedly communicated with one end of the water inlet valve (2), a water outlet valve (4) is fixedly arranged at the other end of the anti-freezing box (1) in a penetrating manner, and an electric control water meter (5) arranged in the anti-freezing box (1) is fixedly communicated with one end of the water outlet valve (4);

the automatic cleaning assembly (6) comprises an end cover (601) detachably connected to the bottom of the mechanical water meter (3), a rotating shaft (602) is rotatably arranged on the end cover (601) in a penetrating mode, an outer filter screen (603) is fixedly connected to the upper end of the rotating shaft (602), an inner filter screen (604) detachably connected with the inner wall of the mechanical water meter (3) is rotatably inserted into the outer filter screen (603), and a hydrodynamic transmission part (7) used for driving the rotating shaft (602) to rotate is arranged between the mechanical water meter (3) and the water inlet valve (2);

the fine filtering assembly (8) comprises a column pipe (801) with an opening at the bottom, a water inlet pipe (802) which is arranged close to the top of the column pipe (801) and used for communicating a mechanical water meter (3) is constructed on one side of the column pipe (801), a water outlet pipe (803) which is arranged close to the bottom of the column pipe (801) and used for communicating an electric control water meter (5) is constructed on the other side of the column pipe (801), and a filter screen frame (804) communicated with the water inlet pipe (802) can be detachably inserted into the bottom of the column pipe (801).

2. The passive automatic control water meter of low power consumption of a type of preventing frostbite according to claim 1, characterized in that, the case (1) that prevents frostbite includes metal box (101), the upper end of metal box (101) is the opening and articulates there is transparent shrouding (102), be connected with heat preservation (103) on the inner wall of metal box (101), heat preservation (103) are stamped dampproofing board (104).

3. The passive automatic control water meter of antifreeze type with low power consumption according to claim 1, wherein the mechanical water meter (3) comprises a meter case (301) with an open lower end, the two ends of the meter case (301) are respectively provided with a connecting pipe (302) communicated with the water inlet valve (2) and the fine filtering component (8), the inner top of the meter case (301) is provided with two inserting columns (303), the upper end of the inner filtering net (604) is provided with two lantern rings (6041) sleeved with the inserting columns (303), an impeller magnetic steel transmission piece (304) is arranged between the inner filtering net (604) and the meter case (301), and the upper end of the meter case (301) is fixedly connected with a counter (305).

4. A low-power consumption passive automatic control water meter of antifreezing type according to claim 3, wherein the electric control water meter (5) comprises a dry water meter (501), a controller (502) is fixedly connected to one side of the top of the dry water meter (501), a battery jar (503) is configured to one side of the controller (502), a storage battery (504) is inserted into the battery jar (503), a clamping cover plate (505) is hinged to an opening end of the battery jar (503), and the controller (502) is electrically connected with the storage battery (504) and the counter (305) through a conducting wire.

5. An anti-freezing passive automatic water meter with low power consumption according to claim 4, wherein the dry water meter (501) and the display end of the counter (305) and the controller (502) are hinged with a flip (9), and the inside of the flip (9) is pasted with heat insulation cotton.

6. The passive automatic control water meter of antifreeze type with low power consumption according to claim 4, characterized in that the water outlet end of the dry water meter (501) is fixedly communicated with a spring check valve (5011).

7. The anti-freezing passive automatic water meter with low power consumption is characterized in that the hydrodynamic transmission part (7) comprises a rectangular frame (701) fixedly communicated with one end of the water inlet valve (2), a post rod (702) is rotatably installed in the rectangular frame (701), a water wheel (703) positioned in the rectangular frame (701) is connected to the post rod (702), two U-shaped supporting seats (704) are arranged at the bottom of the anti-freezing box (1), a transmission rod (705) is rotatably installed on the U-shaped supporting seats (704), and two ends of the transmission rod (705) are respectively in transmission connection with the post rod (702) and the rotating shaft (602) through bevel gears.

8. The passive automatic control water meter of low power consumption of a type that prevents frostbite of claim 7, characterized in that, the case (1) bottom that prevents frostbite is constructed and is contained the installing port (105) of mechanical water meter (3) and column pipe (801), it has bottom cover (106) to articulate in the installing port (105), the other end of bottom cover (106) is constructed and is had snap ring (107), the case (1) bottom that prevents frostbite is rotated and is installed the rotatory joint piece (108) that runs through snap ring (107), U type supporting seat (704) fixed connection is at the upper surface of bottom cover (106).

9. The passive automatic control water meter of a low-power consumption of a type of preventing frostbite of claim 1, characterized by, the pillar pipe (801) is constructed with the ladder groove (8011) that is located under the inlet tube (802), the screen frame (804) includes the dome (8041) of threaded connection at the open end of ladder groove (8011), there is fine screen cover (8043) of open-ended on the dome (8041) through support column (8042) fixedly connected with upper end, the top of fine screen cover (8043) is contradicted at the inside top of ladder groove (8011).

10. The anti-freezing passive automatic water meter with low power consumption according to claim 9, wherein the water inlet pipe (802) is arranged tangentially to the inner wall of the column pipe (801), the inner wall of the fine filter screen (8043) is configured with a spiral screen (8044) having one end arranged tangentially to the water inlet pipe (802), and the spiral screen (8044) is made of activated carbon.

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