Anti-freezing water meter

Abstract

The invention discloses an anti-freezing water meter, and particularly relates to the technical field of water meters, the anti-freezing water meter comprises a water meter main body and a pressure control inner cavity belt, the top of the water meter main body is provided with two groups of extended positioning plates, the centers of the two groups of extended positioning plates are provided with sealing rings, and a dial plate is mounted above the sealing rings; the upper portion of the dial plate is connected with a meter cover through a hinge, the dial plate comprises a first water inlet channel, a second water inlet channel, a detection fan blade, a pressure relief chamber and a pressure control inner cavity belt, and when weather changes, the low-temperature effect of the external environment can directly act on the outer surface of the water meter at the moment, permeates into the water meter through the water meter and makes contact with a water source; the temperature of the water source changes due to the fact that the temperature of the water source changes, the water source in the water meter is isolated from the shell of the water meter through the pressure control inner cavity belt, the temperature attached to the shell of the water meter is blocked by the pressure control inner cavity belt firstly, and therefore the direct influence of the external environment on the water source is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of water meters, and more specifically, to an antifreeze water meter. Background Art

[0002] Freeze-proof water meters are water meters that use special designs and structures to prevent ice from forming inside the water meter in low-temperature environments. Such water meters are usually equipped with insulation components, such as insulation shells and insulation foam, to keep the temperature inside the water meter above freezing, thereby avoiding damage and functional disorders caused by ice formation. Freeze-proof water meters are particularly important for cold regions or areas with low winter temperatures, as they can ensure the normal operation and accurate metering of water meters, reducing the risk of repair costs and water supply interruptions caused by freezing; After searching, the existing application number is: CN201811022628.6, which discloses an antifreeze water meter. The guide sleeve is installed in the gear box, which does not affect the measurement of the meter. After the water meter is frozen, it does not need maintenance and can be automatically reset, which solves the problem of the glass of the water meter being frozen and cracked in low temperature weather: during the antifreeze process of the antifreeze water meter of the above device, when the temperature is lower than the tolerance value of the equipment, it will directly cause the protection of the water meter to fail, thereby affecting the use of the water meter, and once the ambient temperature approaches the limit state, it will cause the water source in the water meter to freeze, thereby causing the water source to freeze and expand and squeeze the water meter, thereby causing damage to the water meter; Therefore, an antifreeze water meter is proposed to address the above problems. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present application provides an antifreeze water meter to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned objectives, the present application provides the following technical solutions: an antifreeze water meter, comprising a water meter body and a pressure-controlling inner cavity belt, two groups of extended positioning plates are arranged on the top of the water meter body, and sealing rings are arranged at the centers of the two groups of extended positioning plates, and a dial is installed above the sealing ring, and a meter cover is connected to the top of the dial through a hinge, and the dial comprises a first water inlet channel, a second water inlet channel, a detection fan blade, a pressure relief chamber and a pressure-controlling inner cavity belt, and a second water inlet channel is arranged above the first water inlet channel, and a pressure relief chamber is arranged on the side of the first water inlet channel away from the second water inlet channel, and the inner walls of the first water inlet channel and the second water inlet channel are covered with pressure-controlling inner cavity belts on both sides.

[0005] Preferably, the pressure-controlled inner cavity belt includes a belt body, an outer edge belt, a connecting belt and a water supply hose, and outer edge belts are provided on both sides of the belt body, and connecting belts are provided at both upper and lower ends of the belt body, and a water supply hose is provided at the center of the two groups of connecting belts.

[0006] Preferably, the pressure-controlling inner cavity belt further comprises a water-receiving inner membrane, a water-delivery cavity and a water-receiving outer membrane, and the water-receiving outer membrane is arranged on the side of the water-receiving inner membrane, and the water-delivery cavity is arranged at the center of the water-receiving inner membrane and the water-receiving outer membrane.

[0007] Preferably, a pressure guide groove is provided below the first water inlet channel, and a pressure inlet groove is provided below the pressure guide groove, and two groups of sealing blocks are provided below the pressure inlet groove, and a rotating shaft is provided on the side of the two groups of sealing blocks away from the pressure inlet groove, and an impact needle is provided on the side of the rotating shaft away from the sealing block, and a needle inlet groove is provided on the side of the impact needle away from the rotating shaft, and when the sealing block is pressurized and rotates axially along the rotating shaft, the sealing block and the rotating shaft are linked, and the impact needle is started to move inward along the needle inlet groove.

[0008] Preferably, the pressure relief chamber comprises a sealing shell, a corrosion-resistant inner membrane and a pressure relief cavity, and the corrosion-resistant inner membrane is arranged above the inner wall of the sealing shell, and the pressure relief cavity is arranged at the center of the first water inlet channel and the sealing shell.

[0009] Preferably, the output shaft of the detection blade is connected to a blade protection cover, and a support base is provided below the water meter body.

[0010] Preferably, a water inlet is provided on the side of the water meter body, a water outlet is provided on the side of the water meter body away from the water inlet, a water inlet pipe is provided on the side of the water inlet away from the water meter body, and a connecting bracket is provided at the center of the two groups of water inlet pipes.

[0011] Preferably, a mounting bracket is installed on the top of the water outlet, and a first separation port is installed above the mounting bracket, and a second separation port is arranged on the side of the mounting bracket, and a drain pipe is arranged on the side of the second separation port away from the mounting bracket, and a pressure detection probe is arranged below the water outlet pipe.

[0012] Preferably, a belt outlet groove is provided above the inner wall of the extended positioning plate, and a detachable structure is formed between the extended positioning plate and the connecting belt by bolts.

[0013] Technical effects and advantages of this application: 1. Compared with the prior art, the antifreeze water meter has a pressure-controlled inner cavity belt, wherein the main body of the pressure-controlled inner cavity belt is a belt body structure, and the functional part of the fixed part of the pressure-controlled inner cavity belt includes an outer edge belt, a connecting belt and a water supply hose. When placing the pressure-controlled inner cavity belt, the pressure-controlled inner cavity belt is placed first when the water meter body is assembled. When placing the pressure-controlled inner cavity belt, the pressure-controlled inner cavity belt is wound so that the connecting belt of the pressure-controlled inner cavity belt passes through the first water inlet channel and the second water inlet channel inside the water meter, wherein the water supply hose is passed through the extended positioning plate first, and the outer edge belt of the pressure-controlled inner cavity belt is successively passed into the interior of the extended positioning plate, thereby fixing the outer edge belt by bolts, thereby fixing the belt body, and positioning the belt body.

[0014] 2. Compared with the prior art, this antifreeze water meter, when the weather changes, the low temperature effect of the external environment will directly act on the outer surface of the water meter, penetrate into the interior through the water meter and come into contact with the water source, thereby causing the temperature of the water source to change. At this time, the water source in the water meter is isolated from the outer shell of the water meter by the pressure-controlled inner cavity belt, so that the temperature attached to the outer shell of the water meter will first be blocked by the pressure-controlled inner cavity belt, thereby reducing the direct impact of the external environment on the water source.

[0015] 3. Compared with the prior art, this antifreeze water meter, when the weather is extremely bad, the water source in the water meter freezes, thereby causing the water source to expand and squeeze the pressure-controlling inner cavity belt, and the squeezed pressure-controlling inner cavity belt enters the pressure-bearing guide groove so that the impact needle contacts the water-receiving outer membrane, so that the salt water mixture in the water-receiving outer membrane is sprayed into the interior of the pressure relief chamber along the leakage point, so that the interior of the water meter regains new reserved space. At this time, because the water source entering the water meter is restricted by the pressure-controlling inner cavity belt and the entry amount is reduced, when the water source freezes, the water source condenses from the outside to the inside. Therefore, when the water condenses to the point where the salt water mixture squeezes the pressure-controlling inner cavity belt and needs to be sprayed out of the pressure relief chamber, the condensation degree of the water source will reach a basically complete degree. Therefore, when the water source re-condenses in the water meter, the water source in its pipeline will be condensed. Therefore, even if the water source continues to expand, it can still continue to expand through the remaining space without worrying about the injection of new water source. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the structure of the water meter body of this application; Figure 3 This is a schematic diagram of the structure of the sealed housing of the present application; Figure 4 This is a schematic diagram of the structure of the water outlet pipe of this application; Figure 5It is a schematic structural diagram of a front cross-section of the pressure relief chamber of the present application; Figure 6 This is a schematic diagram of the front cross-section structure of the detection fan blade of the present application; Figure 7 For this application Figure 6 The enlarged structural diagram at A in the middle; Figure 8 It is a schematic structural diagram of a front cross-section of the pressure-controlled inner cavity belt of the present application; Fig. 9 For this application Figure 8 Enlarged structural diagram at B in the middle.

[0017] The accompanying drawings are marked as follows: 1, water meter body; 2, sealing ring; 3, dial; 4, meter cover; 5, water inlet pipe; 6, connecting bracket; 7, water outlet pipe; 8, mounting bracket; 9, first separation port; 10, second separation port; 11, drain pipe; 12, pressure detection probe; 13, sealing shell; 14, water outlet; 15, extended positioning plate; 16, belt outlet groove; 17, bolt; 18, pressure control inner cavity belt; 1801, belt body; 1802, outer edge belt; 1803, connecting belt; 1 804, water supply hose; 19, water inlet; 20, first water inlet channel; 21, second water inlet channel; 22, detection blade; 23, pressure relief chamber; 2301, sealing shell; 2302, corrosion-resistant inner membrane; 24, supporting base; 25, blade protection cover; 26, pressure guide groove; 27, pressure inlet groove; 28, sealing block; 29, pressure relief chamber; 30, rotating shaft; 3001, impact needle; 31, needle inlet groove; 32, water receiving inner membrane; 33, water supply chamber; 34, water receiving outer membrane. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] As attached Figures 1 to 9An antifreeze water meter shown includes a water meter body 1 and a pressure-controlling inner cavity belt 18, two groups of extended positioning plates 15 are arranged on the top of the water meter body 1, and a sealing ring 2 is arranged at the center of the two groups of extended positioning plates 15, and a dial 3 is installed above the sealing ring 2, and a meter cover 4 is connected to the top of the dial 3 through a hinge, and the dial 3 includes a first water inlet channel 20, a second water inlet channel 21, a detection fan blade 22, a pressure relief chamber 23 and a pressure-controlling inner cavity belt 18, and a second water inlet channel 21 is arranged above the first water inlet channel 20, and a pressure relief chamber 23 is arranged on the side of the first water inlet channel 20 away from the second water inlet channel 21, and the inner walls of the first water inlet channel 20 and the second water inlet channel 21 are covered with the pressure-controlling inner cavity belt 18 on both sides.

[0020] Among them, when the antifreeze water meter is used again, due to the uncertainty of weather changes, its temperature changes often have a direct impact on the water stored in the water meter, so that the water in the water meter is in a non-flowing environment, causing the water source in the water meter to crystallize or even freeze at an excessively low temperature. Therefore, when the water meter is installed in an environment where the temperature is excessive, the pressure-controlled inner cavity belt 18 can be put back into the water meter body 1, and then different concentrations of brine mixtures can be adjusted according to the real-time environmental weather, and the brine mixture can be sent into the water delivery cavity 33 in the pressure-controlled inner cavity belt 18 through the opening of the water delivery hose 1804, so that the brine mixture is continuously circulated along the inside of the water delivery cavity 33, so that the brine mixture fills the water delivery cavity 33 at the same time, and the water delivery cavity 33 is expanded by the brine mixture, so that the pressure-controlled inner cavity belt 18 and the brine mixture in the water meter body 1 have a reserved space that can be adjusted according to actual conditions.

[0021] As a preferred embodiment, the pressure-controlled inner cavity belt 18 includes a belt body 1801, an outer edge belt 1802, a connecting belt 1803 and a water supply hose 1804, and the outer edge belts 1802 are arranged on both sides of the belt body 1801, and the upper and lower ends of the belt body 1801 are arranged with connecting belts 1803, and the center of the two sets of connecting belts 1803 is provided with a water supply hose 1804, wherein the main body of the pressure-controlled inner cavity belt 18 is a belt body structure, and the functional part of the fixed part of the pressure-controlled inner cavity belt 18 includes the outer edge belt 1802. , connecting belt 1803 and water supply hose 1804, when assembling the water meter body 1, the pressure control inner cavity belt 18 is placed first, and when placing, the pressure control inner cavity belt 18 is wound so that the connecting belt 1803 of the pressure control inner cavity belt 18 passes through the first water inlet channel 20 and the second water inlet channel 21 inside the water meter, wherein the water supply hose 1804 is preferably passed through along the extended positioning plate 15, and the outer edge belt of the pressure control inner cavity belt 18 is sequentially passed into the interior of the extended positioning plate 15, so that the outer edge belt 1802 passes through The extended positioning plate 15 is exposed, and the connecting belt 1803 is restricted. The belt body 1801 in the watch body is restricted by restricting the outer edge belt 1802. Then, the water supply hose 1804 of the pressure control inner cavity belt 18 is also exposed through the extended positioning plate 15, and the top of the water supply hose 1804 of the extended positioning plate 15 is exposed above the outer surface of the extended positioning plate 15. At this time, the outer edge belt 1802 of the pressure control inner cavity belt 18 is exposed along the water inlet 19 and the water outlet 14 respectively, and then the water inlet pipe 5 and the water outlet pipe 5 are connected. The tube 7 is respectively connected to the outer edge belt 1802, and the water inlet pipe 5 and the water outlet pipe 7 are connected to the water inlet 19 and the water outlet 14 of the water meter body 1, so that the water source in the water inlet pipe 5 is directly poured into the interior of the water meter body 1, and the pressurized water source is rushed into the interior of the water meter body 1, so that the water source is directly connected to the pressure-controlling inner cavity belt 18, so that the water source directly squeezes the pressure-controlling inner cavity belt 18 on the inner wall of the water meter body 1, thereby completing the fixation of the belt body 1801, thereby completing the positioning of the belt body 1801.

[0022] As a preferred embodiment, the pressure-controlled inner cavity belt 18 also includes a water-receiving inner membrane 32, a water-delivery cavity 33 and a water-receiving outer membrane 34, and the water-receiving outer membrane 34 is arranged on the side of the water-receiving inner membrane 32, and the water-delivery cavity 33 is arranged at the center of the water-receiving inner membrane 32 and the water-receiving outer membrane 34, wherein the belt body 1801 of the pressure-controlled inner cavity belt 18 includes the water-receiving inner membrane 32, the water-delivery cavity 33 and the water-receiving outer membrane 34, wherein when the water source flows, the water source will directly contact the water-receiving inner membrane 32, so that the water-receiving inner membrane 32 protects and isolates the water source, and a gap is left in the water-delivery cavity 33 for the salt water mixture to be poured into the interior of the water-delivery cavity 33, so that the water source is integrated through the water-delivery cavity 33, and the temperature of the water source is isolated through the water-receiving inner membrane 32, the water-delivery cavity 33 and the water-receiving outer membrane 34, thereby reducing the impact of the environment on the water meter, thereby affecting the temperature of the water source.

[0023] As a preferred embodiment, a pressure guide groove 26 is provided below the first water inlet channel 20, and a pressure inlet groove 27 is provided below the pressure guide groove 26, and two groups of sealing blocks 28 are provided below the pressure inlet groove 27, and a rotating shaft 30 is provided on the side of the two groups of sealing blocks 28 away from the pressure inlet groove 27, and an impact needle 3001 is provided on the side of the rotating shaft 30 away from the sealing block 28, and a needle inlet groove 31 is provided on the side of the impact needle 3001 away from the rotating shaft 30, and the needle inlet groove 31 is used to place the impact needle 3001 and also to limit the moving position of the impact needle 3001. When the sealing block 28 is pressed and rotates axially along the rotating shaft 30, the sealing block 28 and the rotating shaft 30 are 0 linkage, and start the impact needle 3001 to move inward along the needle entry groove 31, so that when the water source is frozen, the frozen water source directly squeezes the pressure control inner cavity belt 18, and when the frozen water source continues to expand, the frozen water source squeezes the pressure control inner cavity belt 18, so that the water receiving outer membrane 34 of the pressure control inner cavity belt 18 is squeezed into the inside of the pressure guide groove 26, and according to the frozen water source, the pressure control inner cavity belt 18 passes through the pressure guide groove 26 and penetrates into the inside of the pressure entry groove 27, and the pressure control inner cavity belt 18 squeezes the sealing block 28 and expands, so that the impact needle 3001 connected to the rotating shaft 30 of the sealing block 28 directly moves along the needle entry groove 31, so that the impact needle 3001 pierces the pressure control inner cavity belt 18. At the water-receiving outer membrane 34 of the inner cavity belt 18, the structure of the impact needle 3001 is semicircular. When the rotating shaft 30 moves, after the needle head of the impact needle 3001 penetrates the water-receiving outer membrane 34, even if the pressure-controlled inner cavity belt 18 continues to move, the needle head of the impact needle 3001 continues to move clockwise after puncturing the water-receiving outer membrane 34, so that the water-receiving inner membrane 32 of the pressure-controlled inner cavity belt 18 contacts with the impact needle 3001. Because the rotating shaft 30 connected to the impact needle 3001 continuously changes the needle head position of the impact needle 3001 when it moves under pressure, the water-receiving inner membrane 32 and the impact needle 3001 are in contact. 1 is in contact with the needle body of the impact needle 3001, thereby preventing the water-receiving inner membrane 32 from being punctured, so that the salt water mixture in the water delivery chamber 33 is continuously sprayed into the interior of the pressure relief chamber 23 through the leakage, so that the salt water mixture is continuously accumulated in the interior of the pressure relief chamber 23. At the same time, the impact needle 3001 and the needle entry groove 31 are both arc-shaped, so that when the impact needle 3001 breaks through the water-receiving outer membrane 34, at this time, because of the arc shape of the impact needle 3001, the needle head of the impact needle 3001 will pass through the water-receiving outer membrane 34 during the movement, so that the impact needle 3001 will not directly contact the water-receiving inner membrane 32, so as to maintain the safety of the water-receiving inner membrane 32.

[0024] As a preferred embodiment, the pressure relief chamber 23 includes a sealing shell 2301, a corrosion-resistant inner membrane 2302 and a pressure relief chamber 29, and the corrosion-resistant inner membrane 2302 is arranged on the inner wall of the sealing shell 2301, and the pressure relief chamber 29 is arranged at the center of the first water inlet channel 20 and the sealing shell 2301, so that the impact needle 3001 is inserted into the water receiving outer membrane 34 of the pressure control inner cavity belt 18, so that the salt water mixture in the water supply cavity 33 is continuously sprayed into the interior of the pressure relief chamber 23 through the leakage, so that the salt water mixture is continuously accumulated in the interior of the pressure relief chamber 23, and the salt water mixture in the pressure relief chamber 23 is protected by the corrosion-resistant inner membrane 2302, and the corrosion-resistant inner membrane 2 The structure of 302 is chloroprene rubber, so as to reduce the corrosion of the sealing shell 2301 by the salt water. At this time, the salt water mixture used for antifreeze continuously leaks into the interior of the pressure relief chamber 29. When the salt water mixture enters the pressure relief chamber 29 for storage, when the temperature changes tend to be stable, when the maintenance personnel inspect the equipment, the pressure control inner cavity belt 18 is replaced, and the sealing shell 2301 is disassembled, the equipment and the sealing shell 2301 are cleaned and reinstalled, thereby completing the repair of the equipment. At this time, the frozen water source can be processed through the vacated space, thereby reducing the damage of the frozen water source to the water meter.

[0025] As a preferred embodiment, the output shaft of the detection blade 22 is connected to a blade protection cover 25, and a support base 24 is provided under the water meter body 1. Then, due to the structure of the detection blade 22, when the water flow impacts the detection blade 22, the blade is protected by the blade protection cover 22, so that the blade is restricted by the blade protection cover 22, so that the blade will not directly contact the pressure control inner cavity belt 18. When the water flows through the detection blade 22, the detection blade 22 rotates to detect the flow rate of the water source.

[0026] As a preferred embodiment, a water inlet 19 is provided on the side of the water meter body 1, and a water outlet 14 is provided on the side of the water meter body 1 away from the water inlet 19, and a water inlet pipe 5 is provided on the side of the water inlet 19 away from the water meter body 1, and a connecting bracket 6 is provided at the center of the two groups of water inlet pipes 5. Then, when the water meter body 1 is connected to the water inlet pipe 5, the outer edge band 1802 of the pressure-controlling inner cavity band 18 is exposed, so that the water inlet pipe 5 and the water outlet pipe 7 penetrate into the interior of the outer edge band 1802, so that the connection between the water inlet pipe 5 and the water meter body 1 is restricted by the outer edge band 1802, so that the water source sprayed out of the water inlet pipe will directly spray into the pressure-controlling inner cavity band 18 in the water meter body 1.

[0027] As a preferred embodiment, a mounting bracket 8 is installed on the top of the water outlet 14, and a first separation port 9 is installed above the mounting bracket 8, and a second separation port 10 is arranged on the side of the mounting bracket 8, and a drain pipe 11 is arranged on the side of the second separation port 10 away from the mounting bracket 8, and a pressure detection probe 12 is arranged below the water outlet pipe 14, and the model of the pressure detection probe 12 is GTI150.

[0028] As a preferred embodiment, a belt outlet groove 16 is provided above the inner wall of the extended positioning plate 15 , and a detachable structure is formed between the extended positioning plate 15 and the connecting belt 1803 via bolts 17 .

[0029] The working process of the present application is as follows: first, when the antifreeze water meter is in use, due to the uncertainty of weather changes, the temperature changes often have a direct impact on the water stored in the water meter, thereby causing the water in the water meter to crystallize or even freeze at an excessively low temperature in a stagnant environment. Therefore, when installing the water meter to be used in an excessively low environment, the pressure-controlling inner cavity belt 18 can be put back into the interior of the water meter body 1, and then the outer edge belt 1802 can be passed through the extended positioning plate 15 so that the outer edge belt 1802 is exposed through the extended positioning plate 15, and the outer edge belt 1802 is fixed by bolts 17, thereby restricting the outer edge belt 1802 so that the water in the meter body is The belt body 1801 is restricted, and then the water supply hose 1804 of the pressure-controlled inner cavity belt 18 is also passed through the extended positioning plate 15, and the top of the water supply hose 1804 of the extended positioning plate 15 is exposed above the outer surface of the extended positioning plate 15. At this time, the outer edge belt 1802 of the pressure-controlled inner cavity belt 18 is exposed along the water inlet 19 and the water outlet 14 respectively, and then the water inlet pipe 5 and the water outlet pipe 7 are respectively connected to the outer edge belt 1802, and the water inlet pipe 5 and the water outlet pipe 7 are connected to the water inlet 19 and the water outlet 14 of the water meter body 1, so that the water source in the water inlet pipe 5 is directly poured into the interior of the water meter body 1, and the pressurized water source is flushed into the interior of the water meter body 1, so that the water source is directly connected to the pressure-controlled inner cavity belt 18, so that the water source is directly The pressure-controlled inner cavity belt 18 is squeezed onto the inner wall of the water meter body 1, and then the salt water mixture of different concentrations is adjusted according to the real-time environmental weather, and the salt water mixture is sent into the water delivery cavity 33 in the pressure-controlled inner cavity belt 18 through the opening of the water delivery hose 1804, so that the salt water mixture is continuously circulated along the inside of the water delivery cavity 33, so that the salt water mixture is filled in the water delivery cavity 33 at the same time, and the water delivery cavity 33 is expanded by the salt water mixture, so that the pressure-controlled inner cavity belt 18 and the salt water mixture in the water meter body 1 have a reserved space that can be adjusted according to actual conditions, and then when the weather environment changes, the pressure-controlled inner cavity belt 18 directly receives the water in the water meter body 1 through the water receiving inner membrane 32 and the water receiving outer membrane 34. The source is isolated from the sealing shell 2301, so as to reduce the temperature of the external environment and directly act on the water source through the sealing shell 2301, so as to directly insulate the water source according to the pressure-controlled inner cavity belt 18 and the salt water mixture stored inside. When the ambient weather changes directly, the pressure-controlled inner cavity belt 18 and the salt water mixture stored inside are unable to control the temperature of the water source in the water meter. At this time, the water source in the water meter condenses from the outside to the inside, so that the water source continues to freeze and expand, and the condensed water source slowly squeezes the pressure-controlled inner cavity belt 18. Since the membrane of the pressure-controlled inner cavity belt 18 itself is elastic and the salt water mixture has a lower condensation temperature than water, when the water source freezes, the frozen water source directly squeezes the pressure-controlled inner cavity belt 18.When the frozen water source continues to expand, the frozen water source will squeeze the pressure-controlling inner cavity belt 18, so that the water-collecting outer membrane 34 of the pressure-controlling inner cavity belt 18 is squeezed into the interior of the pressure-receiving guide groove 26, and according to the frozen water source, the pressure-controlling inner cavity belt 18 passes through the pressure-receiving guide groove 26 and penetrates into the interior of the pressure-inlet groove 27, and the pressure-controlling inner cavity belt 18 squeezes the sealing block 28 and unfolds, so that the impact needle 3001 connected to the rotating shaft 30 of the sealing block 28 directly moves along the needle-inlet groove 31, so that the impact needle 3001 pierces the water-collecting outer membrane 34 of the pressure-controlling inner cavity belt 18, so that The salt water mixture in the water delivery chamber 33 is continuously sprayed into the pressure relief chamber 23 through the leakage, so that the salt water mixture is continuously accumulated in the pressure relief chamber 23, and the salt water mixture in the pressure relief chamber 23 is protected by the corrosion-resistant inner film 2302, thereby reducing the corrosion of the sealing shell 2301 by the salt water. At this time, the salt water mixture used for antifreeze continuously leaks into the pressure relief chamber 29. At this time, the frozen water source can be processed through the vacated space, thereby reducing the damage of the frozen water source to the water meter. The above is the working principle of the antifreeze water meter.

Claims

1. An antifreeze water meter, comprising a water meter body (1) and a pressure control inner cavity belt (18), characterized in that: Two groups of extended positioning plates (15) are arranged on the top of the water meter body (1), and sealing rings (2) are arranged at the centers of the two groups of extended positioning plates (15), and a dial (3) is installed above the sealing ring (2), and a meter cover (4) is connected to the dial (3) through a hinge, and the dial (3) comprises a first water inlet channel (20), a second water inlet channel (21), a detection fan blade (22), a pressure relief chamber (23) and a pressure control inner cavity belt (18), and a second water inlet channel (21) is arranged above the first water inlet channel (20), and a pressure relief chamber (23) is arranged on a side of the first water inlet channel (20) away from the second water inlet channel (21), and both sides of the inner walls of the first water inlet channel (20) and the second water inlet channel (21) are covered with a pressure control inner cavity belt (18).

2. The antifreeze water meter according to claim 1, characterized in that: The pressure-controlled inner cavity belt (18) comprises a belt body (1801), an outer edge belt (1802), a connecting belt (1803) and a water supply hose (1804), and the outer edge belts (1802) are arranged on both sides of the belt body (1801), and the connecting belts (1803) are arranged at the upper and lower ends of the belt body (1801), and the water supply hose (1804) is arranged at the center of the two groups of the connecting belts (1803).

3. The antifreeze water meter according to claim 1, characterized in that: The pressure-controlled inner cavity belt (18) further comprises a water-receiving inner membrane (32), a water-delivery cavity (33) and a water-receiving outer membrane (34), and the water-receiving outer membrane (34) is arranged on the side of the water-receiving inner membrane (32), and the water-delivery cavity (33) is arranged at the center of the water-receiving inner membrane (32) and the water-receiving outer membrane (34).

4. The antifreeze water meter according to claim 1, characterized in that: A pressure guide groove (26) is provided below the first water inlet channel (20), and a pressure inlet groove (27) is provided below the pressure guide groove (26), and two groups of sealing blocks (28) are provided below the pressure inlet groove (27), and a rotating shaft (30) is provided on the side of the two groups of sealing blocks (28) away from the pressure inlet groove (27), and an impact needle (3001) is provided on the side of the rotating shaft (30) away from the sealing block (28), and a needle inlet groove (31) is provided on the side of the impact needle (3001) away from the rotating shaft (30), and when the sealing block (28) is pressed and rotates axially along the rotating shaft (30), the sealing block (28) and the rotating shaft (30) are linked, and the impact needle (3001) is started to move inward along the needle inlet groove (31).

5. The antifreeze water meter according to claim 1, characterized in that: The pressure relief chamber (23) comprises a sealing shell (2301), a corrosion-resistant inner membrane (2302) and a pressure relief cavity (29), wherein the corrosion-resistant inner membrane (2302) is arranged above the inner wall of the sealing shell (2301), and the pressure relief cavity (29) is arranged at the center of the first water inlet channel (20) and the sealing shell (2301).

6. The antifreeze water meter according to claim 1, characterized in that: The output shaft of the detection blade (22) is connected to a blade protection sleeve (25), and a support base (24) is provided below the water meter body (1).

7. The antifreeze water meter according to claim 1, characterized in that: A water inlet (19) is provided on the side of the water meter body (1), and a water outlet (14) is provided on the side of the water meter body (1) away from the water inlet (19), and a water inlet pipe (5) is provided on the side of the water inlet (19) away from the water meter body (1), and a connecting bracket (6) is provided at the center of the two groups of water inlet pipes (5).

8. The antifreeze water meter according to claim 7, characterized in that: A mounting bracket (8) is installed on the top of the water outlet (14), a first separation port (9) is installed above the mounting bracket (8), a second separation port (10) is arranged on the side of the mounting bracket (8), a drainage pipe (11) is arranged on the side of the second separation port (10) away from the mounting bracket (8), and a pressure detection probe (12) is arranged below the water outlet pipe (14).

9. The antifreeze water meter according to claim 2, characterized in that: A belt outlet groove (16) is provided above the inner wall of the extended positioning plate (15), and a detachable structure is formed between the extended positioning plate (15) and the connecting belt (1803) via bolts (17).

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