A dual-circulation intelligent water meter with dual meter heads and dual meter cores

Abstract

The present invention discloses a dual-circulation intelligent water meter with dual meter heads and dual meter cores, which relates to the technical field of water meters, including a water meter body, and also including an inlet pipe and a return pipe respectively arranged on the water meter body, and two meter cores arranged in the water meter body, wherein the two meter cores are respectively an inlet meter core arranged in the inlet pipe and a return water meter core arranged in the return pipe. The dual-circulation intelligent water meter with dual meter heads of the present invention forms dual metering units and dual-pipeline differential metering by arranging two meter cores in the water meter body, which not only meets the need for accurate metering, but also solves the need for flowing living water for direct drinking water. At the same time, by setting the installation components, the efficiency of the meter core installation is improved and it is ensured that the force of each installation point of the meter core is uniform during the installation process.

Description

Technical Field

[0001] The invention relates to the technical field of water meters, in particular to a dual-circulation intelligent water meter with double meter heads and double meter cores. Background Art

[0002] With the continuous improvement of living standards, direct drinking water is widely used in thousands of households. More and more high-end communities choose to purchase direct drinking water equipment, transport water to households through direct drinking water pipelines, and centrally supply direct drinking water. Ordinary water meters can only measure flow through the meter core, and the circulation pipeline can only reach the front end of the water meter. The pipeline from the water meter to the end faucet cannot circulate. Some users have no one at home for a long time, and the water in the direct drinking water pipe has not been used for a long time, which leads to the breeding of bacteria. When users use direct drinking water again, the water quality cannot meet the direct drinking water standard. They can only use water with excessive bacteria, or need to release a large amount of water to flush before they dare to drink the water, which causes waste of direct drinking water and brings certain hidden dangers to the user's health. When the meter core is installed, multiple screws are required to lock and fix the meter core. However, in the actual installation process, each screw is tightened separately, which not only affects the installation efficiency of the meter core, but also easily causes the meter core to be subjected to uneven installation force, which leads to deformation and damage of the meter core due to excessive local pressure. For this reason, we propose a dual-circulation intelligent water meter with dual heads and dual cores. Summary of the invention

[0003] The purpose of the present invention is to provide a dual-circulation intelligent water meter with dual meter heads and dual meter cores to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a dual-circulation intelligent water meter with dual meter heads and dual meter cores, comprising a water meter body, and also comprising:

[0005] An inlet pipe and a return pipe are respectively arranged on the water meter body, and an inlet pipe inlet and an inlet pipe outlet are respectively arranged at both ends of the inlet pipe, and a return pipe inlet and a return pipe outlet are respectively arranged at both ends of the return pipe, the inlet pipe inlet and the return pipe outlet are located at the same end of the water meter body, and the inlet pipe outlet and the return pipe inlet are located at the other end of the water meter body, a first water flow path is formed between the inlet pipe inlet, the water meter body and the inlet pipe outlet, a second water flow path is formed between the return pipe inlet, the water meter body and the return pipe outlet, and the water meter body forms a double-circuit circulation under the cooperation of the first water flow path and the second water flow path, the inlet pipe and the return pipe are connected with a tee at the user end, the other end of the tee is connected to a faucet in the user's home, and the inlet pipe and the return pipe can also be directly connected to a circulating faucet with inlet and return interfaces;

[0006] A pressure transmitter is also provided in the water meter body, and the pressure transmitter is installed on the water inlet pipe or a pipeline connected to the water inlet pipe;

[0007] The water meter body is provided with two meter cores, the two meter cores are respectively a water inlet meter core arranged in the water inlet pipeline and a water return meter core arranged in the water return pipeline;

[0008] Two controllable valves are arranged in the water meter body, and the two controllable valves are respectively an inlet controllable valve arranged in the water inlet pipe and a return controllable valve arranged in the return water pipe. A main controller for receiving and processing the electrical signals of the pressure transmitter and the inlet controllable valve and the return controllable valve is arranged in the water meter body. When the faucet drips, the pressure in the water meter body decreases. When the pressure is lower than the preset threshold, the pressure transmitter transmits the signal to the main control part, opens the valve to add water, fills the pipe with water, delays for n seconds, and if no new water flows within n seconds, closes the valve. If water flows, the water flow stops for n seconds and the timing is restarted. After three consecutive tests, if the pressure in the pipe decreases slowly, it can be determined that the pipe is dripping or the user is intentionally stealing water. At this time, an alarm message is sent and the inlet controllable valve is closed, thereby forming a drip alarm valve closure to prevent accidental leakage of the pipe and intentional theft of water by the user.

[0009] The water meter body is provided with a battery for supplying power to the pressure transmitter, the water inlet controllable valve, the water return controllable valve and the main controller, and the battery is detachably connected to the water meter body;

[0010] The water inlet meter core is provided with a counting display, and the water return meter core is provided with an electronic display screen.

[0011] The water meter body is respectively provided with an installation component for installing the water inlet meter core and the return water meter core and a sealing component for sealing the water inlet meter core and the return water meter core during installation. When it is detected that the water consumption reaches a preset value, the return water controllable valve is kept closed to avoid water accumulation in the water inlet pipe section. When it is detected that the water consumption is lower than the preset value, the return water controllable valve can be automatically controlled to open and close, so as to circulate the water accumulated in the water inlet pipeline and avoid dead water pollution.

[0012] Preferably, the water meter body is provided with two controllable valves, which are respectively an inlet controllable valve arranged in the water inlet pipe and a return controllable valve arranged in the return water pipe. The water meter body is provided with a main controller for receiving and processing the electrical signals of the pressure transmitter and the inlet controllable valve and the return controllable valve. When the faucet or pipe drips, the pressure in the water meter body slowly decreases. When the pressure is lower than the preset threshold, the pressure transmitter transmits the signal to the main control part, opens the valve to add water, fills the pipe with water, delays for n seconds, and there is no water within n seconds. When new water flow is detected, the valve is closed. If water is flowing, the timer is restarted after the water flow stops for n seconds. After three consecutive tests, if the pressure in the pipeline decreases slowly, it can be determined that the pipeline is leaking or the user is intentionally stealing water. At this time, an alarm message is sent and the water inlet controllable valve is closed, thereby forming a drip alarm valve closure, which can prevent accidental water leakage in the pipeline or intentional water theft by the user. The water meter body is provided with a battery for supplying power to the pressure transmitter, the water inlet controllable valve, the return water controllable valve and the main controller, and the battery is detachably connected to the water meter body.

[0013] Preferably, the water inlet meter core is provided with a counting display, the water return meter core is provided with an electronic display screen, the water meter body is provided with two multi-step mounting holes, the mounting assembly is located in the mounting hole, the mounting assembly includes a plurality of mounting tubes fixedly connected to the mounting holes, each of the mounting tubes is connected to a circular plate via a guide assembly, each of the circular plates is connected to a mounting plate via a plurality of telescopic assemblies, each of the mounting plates is provided with an inclined surface on a side close to the mounting cover, each of the mounting tube side walls is provided with a plurality of through holes, each of the mounting tubes is provided with a driving assembly for driving the circular plate, the water inlet meter core and the water return meter core side walls are fixedly connected with mounting rings, two of the mounting rings are fixedly connected with a plurality of ear plates, each of the ear plates is provided with a fixing hole matched with the mounting tube, the inner walls of the two mounting holes are provided with a plurality of countersunk holes, and each of the ear plates is slidably connected to the countersunk holes.

[0014] Preferably, the telescopic assembly includes a telescopic hole opened on the side wall of the circular plate, the mounting plate is slidably connected to the telescopic hole, a first spring is fixedly connected to the bottom wall of the telescopic hole, and the other end of the first spring is connected to the mounting plate.

[0015] Preferably, the guide assembly comprises two guide holes opened on the side wall of the mounting tube, the two guide holes are slidably connected with guide plates, and one end of the two guide plates is connected to the circular plate.

[0016] Preferably, the driving assembly includes a threaded rod rotatably connected to each mounting tube, each circular plate is threadedly connected to the threaded rod, each side wall of the threaded rod is fixedly connected to a gear, the mounting hole is rotatably connected to a driving ring, a side of the driving ring close to the mounting tube is fixedly connected to multiple groups of driving teeth, a side of each mounting tube close to the driving ring is provided with an avoidance hole, each driving tooth is rotatably connected to the avoidance hole and meshing with the gear, and each threaded rod is provided with a driving hole in a regular hexagonal shape at one end close to the mounting cover.

[0017] Preferably, the anti-error component includes a sliding rod slidably connected to two mounting holes, the two sliding rods are staggered, the side walls of the two sliding rods are fixedly connected with a plurality of anti-error plates, the two mounting rings are respectively provided with anti-error holes matching each anti-error plate, and the side walls of the two sliding rods are fixedly connected with a retaining ring.

[0018] Preferably, the sealing assembly comprises an annular sealing groove formed on the inner walls of the two mounting holes, rubber airbags are arranged in the two annular sealing grooves, and the two sliding rods are provided with an air injection assembly for injecting air into the two rubber airbags.

[0019] Preferably, the air injection assembly includes an air injection hole opened in the mounting hole, the bottom wall of the air injection hole is connected to the rubber airbag through an air injection tube, the air injection hole is slidably connected to the air injection plate, one end of the sliding rod is connected to the air injection plate, and the side wall of the sliding rod is sleeved with a second spring, and the two ends of the second spring are respectively connected to the air injection plate and the side wall of the air injection hole.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The dual-circulation smart water meter with dual meter heads of the present invention forms a dual-circulation by using an inlet pipe and a return pipe, and can circulate the water in the pipe from the water meter body to the faucet, thereby avoiding the formation of stagnant water to breed bacteria and affect the health of users.

[0022] 2. By setting two meter cores in the water meter body, dual metering units and dual-pipeline differential metering are formed. Metering will only start when the user's actual water usage produces a difference, and circulating water will not be metered and billed. It not only meets the need for accurate metering, but also solves the need for flowing living water for direct drinking water, meets the hygiene requirements of drinking water, and conducts real-time and fixed-point monitoring and management of the user's water consumption and circulating water volume, which can realize gradient charging and prepayment, and collect various parameters of the water meter into the system through the intelligent control system, so as to dynamically grasp the user's water use situation, calculate the water fee, and timely discover abnormal water use by analyzing various data.

[0023] 3. The dual-head dual-circulation intelligent water meter of the present invention, through the setting of the installation component, with the cooperation of the telescopic component, the guide component and the driving component, realizes the synchronous locking and fixation of multiple installation points of the meter core, thereby improving the installation efficiency of the meter core and ensuring that the force on each installation point of the meter core during the installation process is uniform, thereby reducing the risk of deformation and damage of the meter core. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the water inlet direction and the water return direction of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the water meter body of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of two watch movements of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the water return meter core of the present invention;

[0029] Figure 6 This is a schematic diagram of the water inlet meter core structure of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the installation assembly of the present invention;

[0031] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0032] Fig. 9 It is a schematic diagram of the structure of the driving assembly, telescopic assembly and guide assembly of the present invention;

[0033] Fig.10 It is a schematic diagram of the structure of the error-proofing component and the sealing component of the present invention;

[0034] Fig.11 for Fig.10 Enlarged view of point B in the middle.

[0035] In the figure: 1. water meter body; 2. water inlet pipe; 201. water inlet pipe inlet; 202. water inlet pipe outlet; 3. water return pipe; 301. water return pipe inlet; 302. water return pipe outlet; 4. water inlet meter core; 401. counting display; 5. water return meter core; 501. electronic display screen; 601. installation cover; 602. transparent observation window; 7. water inlet controllable valve; 8. water return controllable valve; 9. pressure transmitter; 10. battery; 11. installation hole; 1201. installation pipe; 1202. round plate; 1203. installation plate; 1204. inclined surface; 1205. Through hole; 1206, mounting ring; 1207, ear plate; 1208, countersunk hole; 1301, telescopic hole; 1302, first spring; 1401, guide hole; 1402, guide plate; 1501, threaded rod; 1502, gear; 1503, drive ring; 1504, drive tooth; 1505, avoidance hole; 1601, sliding rod; 1602, anti-error plate; 1603, retaining ring; 1604, anti-error hole; 1701, annular sealing groove; 1702, rubber airbag; 1801, air injection hole; 1802, air injection plate; 1803, second spring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1

[0038] See also Figure 1-Figure 11 The figure shows a dual-head dual-core dual-circulation intelligent water meter, comprising a water meter body 1, and also comprising an inlet pipe 2 and a return pipe 3 respectively arranged on the water meter body 1, the two ends of the inlet pipe 2 are respectively provided with an inlet pipe inlet 201 and an inlet pipe outlet 202, the two ends of the return pipe 3 are respectively provided with a return pipe inlet 301 and a return pipe outlet 302, the inlet pipe inlet 201 and the return pipe outlet 302 are located at the same end of the water meter body 1, and the inlet pipe outlet 202 and the return pipe inlet 301 are located at the water meter body. 1, a first water flow path is formed between the water inlet 201, the water meter body 1 and the water inlet outlet 202, a second water flow path is formed between the water return pipe inlet 301, the water meter body 1 and the water return pipe outlet 302, and the water meter body 1 forms a double-circuit circulation under the cooperation of the first water flow path and the second water flow path, the water inlet pipe and the water return pipe are connected with a tee pipe at the user end, the other end of the tee pipe is connected to the faucet in the user's home, and the water inlet pipe and the water return pipe can also be directly connected to the circulating faucet with the inlet and return interfaces;

[0039] A pressure transmitter 9 is also provided in the water meter body 1, and the pressure transmitter 9 is installed on the water inlet pipe 2 or a pipeline connected to the water inlet pipe 2;

[0040] It should be noted here that: by forming a dual-circuit circulation using the water inlet pipe 2 and the water return pipe 3, the water in the pipe from the water meter body 1 to the faucet can be circulated, thereby avoiding the formation of stagnant water that breeds bacteria and affects the health of users.

[0041] See also Figure 1-Figure 4 The water meter body 1 shown in the figure is provided with two meter cores, the two meter cores are respectively provided with a water inlet meter core 4 arranged in the water inlet pipeline and a water return meter core 5 arranged in the water return pipeline, and the water meter body 1 is respectively provided with an installation component for installing the water inlet meter core 4 and the water return meter core 5 and a sealing component for sealing the water inlet meter core 4 and the water return meter core 5 during the installation process;

[0042] It should be noted here that: by setting two meter cores in the water meter body 1, dual metering units and dual-pipeline differential metering are formed. Metering will only start when the user's actual water usage produces a difference, and circulating water will not be metered and charged. This not only meets the need for accurate metering, but also solves the need for flowing living water for direct drinking water, meets the hygiene requirements of drinking water, and conducts real-time, fixed-point monitoring and management of the user's water consumption and circulating water volume, which can realize gradient charging and prepayment, and collect various parameters of the water meter into the system through the intelligent control system, so that the user's water consumption can be dynamically grasped, the water fee can be calculated, and abnormal water use can be discovered in time by analyzing various data.

[0043] See also Figure 4 In the water meter body 1 shown in the figure, two controllable valves are arranged in the water inlet controllable valve 7 arranged in the water inlet pipe 2 and the return water controllable valve 8 arranged in the return water pipe 3. The water meter body 1 is provided with a main controller for receiving and processing the electrical signals of the pressure transmitter 9 and the water inlet controllable valve 7 and the return water controllable valve 8. The water meter body 1 is provided with a battery 10 for supplying power to the pressure transmitter 9, the water inlet controllable valve 7, the return water controllable valve 8 and the main controller. The battery 10 is detachably connected to the water meter body 1.

[0044] It should be noted here that: when the user has a pipe leak or intentionally steals water, the pressure in the pipe is slowly released. When the pressure drops to a preset threshold, the pressure transmitter 9 transmits a signal to the main controller. For example, the pipe pressure is usually greater than 0.1MPa and dripping begins. When the pressure drops below 0.03MPa, the water inlet controllable valve 7 is opened, the pipe is filled with water, and after the pressure rises to 0.03MPa, a delay of 5s is performed. If no new water flow is detected within 5s, the water inlet controllable valve 7 is closed. If water flows, the timing is restarted 5s after the water flow stops. After three consecutive tests, if the pressure in the pipe decreases slowly, it can be determined that the pipe is leaking or the user is intentionally stealing water. At this time, an alarm message can be sent and the water inlet controllable valve 7 can be closed, thereby forming a drip alarm valve closure to prevent accidental dripping of the pipe or intentional theft of water by the user.

[0045] It is worth noting that: when the user is using water, direct drinking water enters from the water inlet pipe 2, the faucet is turned on, the pressure in the pipe is instantly reduced, the main controller controls the water inlet controllable valve 7 to open, and the user can use water normally. When the user does not use water for a long time, exceeding the set time, a water return operation is required. When the water return operation is performed, the water return controllable valve 8 and the water inlet controllable valve 7 are both opened, and the direct drinking water enters the water inlet pipe 2 from the water inlet pipe inlet 201, and then flows into the water meter body 1, and the flow It flows through the water inlet controllable valve 7, the water inlet meter core 4, and then from the water inlet pipe outlet 202 of the water inlet pipe 2 to the tee pipe, and then enters the return pipe 3 from the return pipe inlet 301, and then flows into the water meter body 1, flows through the return water meter core 5, the return water controllable valve 8, and then flows out from the return pipe outlet 302 of the return water pipe 3, flows to the direct drinking water network, and flows back to the water tank. When measuring the actual water consumption of the user, the value of the water inlet meter core 4 minus the value of the return water meter core 5 is the actual water consumption of the user.

[0046] It should be emphasized that: when the faucet in the user's home is not open, the water inlet controllable valve 7 is closed. When the faucet is opened, the pressure in the pipeline is instantly reduced, and the main controller controls the water inlet controllable valve 7 to open. The user uses water normally. The water inlet controllable valve 7 and the return water controllable valve 8 are electrically connected to the main controller. The pressure transmitter 9 can also be arranged on the external pipeline connected to the water inlet pipeline 2. The pressure transmitter 9 installed outside the water inlet pipe can be placed between the control valve and the faucet. During normal water use, the return water controllable valve 8 is in a closed state. When the user does not use water for a long time, exceeding the set time, the main controller controls the return water controllable valve 8 and the water inlet controllable valve 7 to open, so that the water inlet pipeline 2, the return water pipeline 3 and the three-way pipe form a passage. Under the action of the water supply pressure of the direct drinking water network, the water in the water inlet pipeline 2 and the return water pipeline 3 flows into the return water pipeline of the direct drinking water network, thereby realizing water return. The return water meter core 5 and the water inlet meter core 4 count at the same time, and the main controller can know the return water volume, thereby deducting the return water volume to avoid overcharging the user.

[0047] See also Figure 5-Figure 11The mounting assembly shown in the figure includes a plurality of mounting tubes 1201 fixedly connected to the mounting holes 11, each mounting tube 1201 is connected to a circular plate 1202 through a guide assembly, each circular plate 1202 is connected to a mounting plate 1203 through a plurality of telescopic assemblies, a slope 1204 is provided on a side of each mounting plate 1203 close to the mounting cover 601, a plurality of through holes 1205 are provided on the side wall of each mounting tube 1201, each mounting tube 1201 is provided with a driving assembly for driving the circular plate 1202, a mounting ring 1206 is fixedly connected to the side wall of the water inlet meter core 4 and the water return meter core 5, two mounting rings 1206 are fixedly connected to a plurality of ear plates 1207, each ear plate 1207 is provided with a fixing hole matched with the mounting tube 1201, a plurality of countersunk holes 1208 are provided on the inner walls of the two mounting holes 11, and each ear plate 1207 is slidably connected to the countersunk holes 1208;

[0048] It should be noted here that: through the setting of the installation component, with the cooperation of the telescopic component, the guide component and the drive component, the synchronous locking and fixation of multiple installation points of the watch movement are achieved, thereby improving the installation efficiency of the watch movement while ensuring that the force on each installation point of the watch movement during the installation process is uniform, thereby reducing the risk of deformation and damage of the watch movement.

[0049] See also Fig. 9 The telescopic assembly shown in the figure includes a telescopic hole 1301 opened on the side wall of the circular plate 1202, a mounting plate 1203 is slidably connected to the telescopic hole 1301, a first spring 1302 is fixedly connected to the bottom wall of the telescopic hole 1301, and the other end of the first spring 1302 is connected to the mounting plate 1203;

[0050] It should be noted here that the telescopic assembly is provided to provide guidance and reset functions for the mounting plate 1203 .

[0051] See also Fig. 9 The guide assembly shown in the figure includes two guide holes 1401 opened on the side wall of the mounting tube 1201, the two guide holes 1401 are slidably connected with guide plates 1402, and one end of the two guide plates 1402 is connected to the circular plate 1202;

[0052] It should be noted here that the guide assembly is provided to provide guidance and limiting functions for the movement of the circular plate 1202 .

[0053] See also Figure 8 and Fig. 9The driving assembly shown in the figure includes a threaded rod 1501 rotatably connected to each mounting tube 1201, each circular plate 1202 is threadedly connected to the threaded rod 1501, a gear 1502 is fixedly connected to the side wall of each threaded rod 1501, a driving ring 1503 is rotatably connected to the mounting hole 11, a plurality of groups of driving teeth 1504 are fixedly connected to the side of the driving ring 1503 close to the mounting tube 1201, a avoidance hole 1505 is provided on the side of each mounting tube 1201 close to the driving ring 1503, each driving tooth 1504 is rotatably connected to the avoidance hole 1505 and meshed with the gear 1502, and a driving hole arranged in a regular hexagon is provided at one end of each threaded rod 1501 close to the mounting cover 601;

[0054] It should be noted here that: through the setting of the driving assembly, it is convenient to drive the synchronous rotation of the remaining threaded rods 1501, and then synchronously drive the mounting plates 1203 in different mounting tubes 1201 to move, thereby achieving synchronous tightening of different positions of the mounting ring 1206, and then achieving synchronous locking and fixation of multiple mounting points of the water inlet meter core 4.

[0055] See also Fig.10 and Fig.11 The error-proofing assembly shown in the figure includes a sliding rod 1601 slidably connected to two mounting holes 11, the two sliding rods 1601 are staggered, a plurality of error-proofing plates 1602 are fixedly connected to the side walls of the two sliding rods 1601, two mounting rings 1206 are respectively provided with error-proofing holes 1604 matching each error-proofing plate 1602, and a retaining ring 1603 is fixedly connected to the side walls of the two sliding rods 1601;

[0056] It should be noted here that: by providing the error-proofing component, it is easy to distinguish the installation positions of the water inlet meter core 4 and the water return meter core 5 , and avoid installation misalignment on the two installation holes 11 .

[0057] See also Fig.11 The sealing assembly shown in the figure includes an annular sealing groove 1701 opened on the inner wall of the two mounting holes 11, and the two annular sealing grooves 1701 are provided with rubber airbags 1702, and the two sliding rods 1601 are provided with an air injection assembly for injecting air into the two rubber airbags 1702;

[0058] It should be noted here that: the provision of the sealing assembly is used to form a sealing protection for the water inlet meter core 4.

[0059] See also Fig.11The gas injection assembly shown in the figure includes a gas injection hole 1801 opened in the mounting hole 11, the bottom wall of the gas injection hole 1801 is connected to the rubber airbag 1702 through the gas injection pipe, the gas injection hole 1801 is slidably connected to the gas injection plate 1802, one end of the sliding rod 1601 is connected to the gas injection plate 1802, and the side wall of the sliding rod 1601 is sleeved with a second spring 1803, and the two ends of the second spring 1803 are respectively connected to the gas injection plate 1802 and the side wall of the gas injection hole 1801;

[0060] It should be noted here that: the air injection assembly is used to inject air into the rubber airbag 1702 so that the rubber airbag 1702 is inflated.

[0061] Working principle: When using the dual-head dual-circulation intelligent water meter, the water inlet meter core 4 and the return water meter core 5 need to be installed first. When installing the water inlet meter core 4, the water inlet meter core 4 is first placed in the installation hole 11, and in the process of placing it in the installation hole 11, it is necessary to make the anti-mistake hole 1604 on the installation ring 1206 on the side wall of the water inlet meter core 4 match the anti-mistake plate 1602 in the installation hole 11, so that through the matching setting of the anti-mistake hole 1604 and the anti-mistake plate 1602, it is convenient to distinguish the installation positions of the water inlet meter core 4 and the return water meter core 5, and avoid installation misalignment on the two installation holes 11, and under the anti-mistake effect of the anti-mistake hole 1604 and the anti-mistake plate 1602, when the water inlet meter core 4 is placed in the installation hole 11, the fixing holes on the multiple ear plates 1207 are matched with the installation pipe 1201;

[0062] After the fixing holes on each ear plate 1207 are matched with the mounting tube 1201, the water inlet meter core 4 is continuously pushed to slide into the mounting hole 11 until each ear plate 1207 abuts against the bottom wall of the countersunk hole 1208 on the inner wall of the mounting hole 11, and then the hexagonal handle is inserted into the driving hole on any threaded rod 1501, and the hexagonal wrench is rotated to drive the threaded rod 1501 to rotate. During the rotation of the threaded rod 1501, the threaded engagement transmission action of the threaded rod 1501 and the circular plate 1202 and the guiding action of the guide assembly can drive the circular plate 1501 to rotate. 202 moves close to the mounting ring 1206. In the process of the circular plate 1202 moving close to the mounting ring 1206, when each mounting plate 1203 on the circular plate 1202 is matched with the through hole 1205, under the elastic action of the telescopic assembly, each mounting plate 1203 will be pushed out of the mounting tube 1201. With the continuous movement of the circular plate 1202, when each mounting plate 1203 abuts against the side wall of the mounting ring 1206, the rotation of the threaded rod 1501 can be stopped, and then under the abutment action of each mounting plate 1203, the water inlet meter core 4 is installed and fixed;

[0063] And in the process of the threaded rod 1501 rotating, it will drive the gear 1502 to rotate synchronously, and then under the synchronous meshing transmission action of each driving tooth 1504 and the gear 1502, it will drive the synchronous rotation of the remaining threaded rods 1501, and then synchronously drive the mounting plates 1203 in different mounting tubes 1201 to move, thereby realizing the synchronous tightening of the mounting ring 1206 at different positions, and then realizing the synchronous locking and fixing of multiple mounting points of the water inlet meter core 4, thereby improving the installation efficiency of the water inlet meter core 4, ensuring that the force of each mounting point of the water inlet meter core 4 during the installation process is uniform, thereby reducing the risk of deformation and damage of the water inlet meter core 4;

[0064] When the mounting plate 1203 squeezes and pushes the water inlet meter core 4, the air injection plate 1802 at one end of the sliding rod 1601 will slide in the air injection hole 1801 under the action of the pushing force, and then the gas in the air injection hole 1801 is pushed into the rubber airbag 1702 from the air injection pipe, so that the rubber airbag 1702 is inflated, and the inflated rubber airbag 1702 abuts against the side wall of the water inlet meter core 4, thereby forming a sealing protection for the water inlet meter core 4;

[0065] After the water inlet core 4 is installed, the return water core 5 is installed in the same way. After the water inlet core 4 and the return water core 5 are installed, the installation cover 601 can be installed on the water meter body 1 by screws, and the installation of the double core is completed.

[0066] After the installation of the double meter core is completed, the water inlet pipe inlet 201 is connected to the water supply pipeline of the direct drinking water network, and the water inlet pipe outlet 202 is connected to the user's household water supply pipe, and the return pipe inlet 301 is connected to the user's return pipe, and the return pipe outlet 302 is connected to the return pipe of the direct drinking water network. After the water meter body 1 is connected, it can be used normally. During the whole use process, the water consumption on the water inlet pipe section can be obtained through the communication between the main controller and the metering component. When it is detected that the water consumption of the metering component is large, the return water controllable valve 8 can be kept closed. Due to the large water consumption, there will be no water accumulation problem on the water inlet pipe section. At the same time, when it is detected that the water consumption is small, the return water controllable valve 8 can be automatically controlled to open and close. The water accumulated in the water inlet pipe is circulated back to effectively avoid the pollution problem of dead water. At the same time, the water meter has two built-in metering units and dual-pipeline differential metering. Metering starts only when the user's actual water consumption produces a difference. The circulating water will not be metered and charged. It not only meets the need for accurate metering, but also solves the need for flowing living water for direct drinking water, meets the hygienic requirements of drinking water, and monitors and manages the user's water consumption and circulating water volume in real time and at fixed points, which can realize gradient charging and prepayment, and collect various parameters of the water meter into the system through the intelligent control system, so as to dynamically grasp the user's water consumption and calculate the water fee. By analyzing various data, abnormal water use can be discovered in time;

[0067] During the use of the water meter body 1, the user's water consumption can be measured and counted through the water inlet meter core 4. For example, a normal large barrel of water has a capacity of 18L, and the protection value is set to 20L. When the continuous water consumption exceeds 20L, it is temporarily determined that the user's home is leaking water, and the water inlet controllable valve 7 is closed for the first time. After the valve is closed for m seconds, the alarm is automatically released, and the user can still use water. When the continuous water consumption exceeds 20L again, the water inlet controllable valve 7 is closed again and an alarm is sounded. This is repeated three times in a row, and it is determined that there is a water leak. The water inlet controllable valve 7 is completely closed, and an alarm message is sent to the user's mobile phone. After confirming that the water is manually released or has returned to normal, the closure is released, thereby forming a water leak alarm function, which can prevent the risk of water waste caused by pipe damage or when the faucet in the user's home is not closed;

[0068] At the same time, when the user has a pipe leak or intentionally steals water, the pressure in the pipe is slowly released. When the pressure is less than the preset threshold, the pressure transmitter 9 transmits a signal to the main control part. For example, the pipe pressure is usually greater than 0.1MPa and water begins to drip. When the pressure in the pipe drops below 0.03MPa, the valve is opened to add water, and the pipe is filled with water. After the pressure rises to 0.03MPa, a delay of 5s is performed. If no new water flow is detected within 5s, the valve is closed. If water flows, the water flow stops for 5s and the timing is restarted. After three consecutive tests, if the pressure in the pipe decreases slowly, it can be determined that the pipe is leaking or the user is intentionally stealing water. At this time, an alarm message is sent and the water inlet controllable valve 7 is closed, thereby forming a drip alarm valve closure, which can prevent accidental leakage of the pipe or intentional theft of water by the user.

[0069] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-circulation intelligent water meter with dual meter heads and dual meter cores, comprising: Water meter body (1); It is characterized by further comprising: A water inlet pipe (2) and a water return pipe (3) are respectively arranged on a water meter body (1); the two ends of the water inlet pipe (2) are respectively provided with a water inlet pipe inlet (201) and a water inlet pipe outlet (202); the two ends of the water return pipe (3) are respectively provided with a water return pipe inlet (301) and a water return pipe outlet (302); the water inlet pipe inlet (201) and the water return pipe outlet (302) are located at the same end of the water meter body (1); the water inlet pipe outlet (202) and the water return pipe inlet (301) are located at the other end of the water meter body (1); A first water flow path is formed between the water pipe inlet (201), the water meter body (1) and the water inlet pipe outlet (202); a second water flow path is formed between the water return pipe inlet (301), the water meter body (1) and the water return pipe outlet (302); and the water meter body (1) forms a double-circuit circulation in cooperation with the first water flow path and the second water flow path; the water inlet pipe and the water return pipe are connected with a tee at the user end, and the other end of the tee is connected to a faucet in the user's home; and the water inlet pipe and the water return pipe can also be directly connected to a circulating faucet with two-way interfaces for inlet and return water. A pressure transmitter (9) is also provided in the water meter body (1), and the pressure transmitter (9) is installed on the water inlet pipe (2) or a pipeline connected to the water inlet pipe (2); The water meter body (1) is provided with two meter cores, the two meter cores being respectively a water inlet meter core (4) arranged in the water inlet pipeline and a water return meter core (5) arranged in the water return pipeline; The water meter body (1) is provided with two controllable valves, the two controllable valves being respectively a water inlet controllable valve (7) arranged in the water inlet pipe (2) and a water return controllable valve (8) arranged in the water return pipe (3). The water meter body (1) is provided with a main controller for receiving and processing electrical signals from a pressure transmitter (9) and the water inlet controllable valve (7) and the water return controllable valve (8). When a faucet is leaking, the pressure in the water meter body (1) decreases. When the pressure is lower than a preset threshold, The pressure transmitter (9) transmits the signal to the main control part, opens the valve to add water, fills the pipe with water, delays for n seconds, and if no new water flows within n seconds, closes the valve. If water flows, the water flow stops for n seconds and then restarts the timing. After three consecutive tests, if the pressure in the pipe decreases slowly, it can be determined that the pipe is leaking or the user is intentionally stealing water. At this time, an alarm message is sent and the water inlet controllable valve (7) is closed, thereby forming a leak alarm valve closure to prevent accidental water leakage in the pipe and intentional water theft by the user. The water meter body (1) is provided with a battery (10) for supplying power to a pressure transmitter (9), a water inlet controllable valve (7), a water return controllable valve (8) and a main controller, and the battery (10) is detachably connected to the water meter body (1); The water inlet meter core (4) is provided with a counting display (401), and the water return meter core (5) is provided with an electronic display screen (501).

2. According to claim 1, a dual-head dual-core dual-circulation intelligent water meter, characterized in that: The water meter body (1) is provided with a mounting assembly for mounting the water inlet meter core (4) and the water return meter core (5), and a sealing assembly for sealing the water inlet meter core (4) and the water return meter core (5) during the installation process. When it is detected that the water consumption reaches a preset value, the water return controllable valve (8) is kept closed to avoid water accumulation on the water inlet pipe section. When it is detected that the water consumption is lower than the preset value, the water return controllable valve (8) can be automatically controlled to open and close, so as to circulate and reflux the water accumulated in the water inlet pipe to avoid dead water pollution.

3. A dual-circulation intelligent water meter with dual meter heads and dual meter cores according to claim 2, characterized in that: The water meter body (1) is provided with two multi-step installation holes (11), and the installation assembly is located in the installation holes (11).

4. A dual-circulation intelligent water meter with dual meter heads and dual meter cores according to claim 3, characterized in that: The mounting assembly comprises a plurality of mounting tubes (1201) fixedly connected to the mounting hole (11); each of the mounting tubes (1201) is connected to a circular plate (1202) via a guide assembly; each of the circular plates (1202) is connected to a mounting plate (1203) via a plurality of telescopic assemblies; each of the mounting plates (1203) is provided with an inclined surface (1204) on a side close to the mounting cover (601); each of the mounting tubes (1201) is provided with a plurality of through holes (1205) on a side wall; each of the mounting tubes (1201) is provided with a plurality of through holes (1205); 1) A driving assembly for driving the circular plate (1202) is provided, the side walls of the water inlet meter core (4) and the water return meter core (5) are fixedly connected with mounting rings (1206), two mounting rings (1206) are fixedly connected with a plurality of ear plates (1207), each of the ear plates (1207) is provided with a fixing hole matched with the mounting tube (1201), the inner walls of the two mounting holes (11) are provided with a plurality of countersunk holes (1208), and each of the ear plates (1207) is slidably connected to the countersunk holes (1208).

5. The dual-circulation intelligent water meter with dual meter heads and dual meter cores according to claim 4, characterized in that: The telescopic assembly comprises a telescopic hole (1301) opened on the side wall of the circular plate (1202); the mounting plate (1203) is slidably connected to the telescopic hole (1301); a first spring (1302) is fixedly connected to the bottom wall of the telescopic hole (1301); and the other end of the first spring (1302) is connected to the mounting plate (1203).

6. A dual-circulation intelligent water meter with dual meter heads and dual meter cores according to claim 5, characterized in that: The guide assembly comprises two guide holes (1401) opened on the side wall of the mounting tube (1201), the two guide holes (1401) are slidably connected with a guide plate (1402), and one end of the two guide plates (1402) is connected to the circular plate (1202).

7. A dual-circulation intelligent water meter with dual meter heads and dual meter cores according to claim 6, characterized in that: The driving assembly comprises a threaded rod (1501) rotatably connected to each mounting tube (1201); each circular plate (1202) is threadedly connected to the threaded rod (1501); a gear (1502) is fixedly connected to the side wall of each threaded rod (1501); a driving ring (1503) is rotatably connected to the mounting hole (11); a plurality of groups of driving teeth (1504) are fixedly connected to a side of the driving ring (1503) close to the mounting tube (1201); a avoidance hole (1505) is provided on a side of each mounting tube (1201) close to the driving ring (1503); each driving tooth (1504) is rotatably connected to the avoidance hole (1505) and meshed with the gear (1502); and a driving hole arranged in a regular hexagon is provided at one end of each threaded rod (1501) close to the mounting cover (601).

8. The dual-circulation intelligent water meter with dual meter heads and dual meter cores according to claim 7, characterized in that: The anti-error assembly comprises a sliding rod (1601) slidably connected to two mounting holes (11); the two sliding rods (1601) are arranged alternately; the side walls of the two sliding rods (1601) are fixedly connected with a plurality of anti-error plates (1602); the two mounting rings (1206) are respectively provided with anti-error holes (1604) matching with each anti-error plate (1602); and the side walls of the two sliding rods (1601) are fixedly connected with a retaining ring (1603).

9. A dual-circulation intelligent water meter with dual meter heads and dual meter cores according to claim 8, characterized in that: The sealing assembly comprises an annular sealing groove (1701) formed on the inner wall of the two mounting holes (11), rubber airbags (1702) are arranged in the two annular sealing grooves (1701), and the two sliding rods (1601) are provided with an injection assembly for injecting air into the two rubber airbags (1702).

10. A dual-circulation intelligent water meter with dual meter heads and dual meter cores according to claim 9, characterized in that: The gas injection assembly includes a gas injection hole (1801) opened in the mounting hole (11), the bottom wall of the gas injection hole (1801) is connected to the rubber airbag (1702) through a gas injection tube, the gas injection hole (1801) is slidably connected to the gas injection plate (1802), one end of the sliding rod (1601) is connected to the gas injection plate (1802), the side wall of the sliding rod (1601) is sleeved with a second spring (1803), and the two ends of the second spring (1803) are respectively connected to the gas injection plate (1802) and the side wall of the gas injection hole (1801).

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