A large-caliber wireless remote valve-controlled water meter

Abstract

The present invention relates to the technical field of intelligent water meters, and discloses a large-caliber wireless remote valve-controlled water meter, comprising a shell, a metering cavity is formed at the bottom of the shell, and a plurality of impellers that can rotate with the water flow are arranged in the metering cavity; a card reader mechanism for inserting an IC card is fixedly installed on the surface of the shell, and a card insertion slot is provided on the front of the card reader mechanism; a plurality of scraping mechanisms corresponding to the impellers and located directly above the metering cavity are arranged inside the shell, and when the user inserts the IC card into the card insertion slot. The water meter can automatically clean the accumulation on the surface of the impeller at each pre-charge through the built-in scraping mechanism, which helps to maintain the normal operation of the mechanical parts inside the water meter, and reduces the abnormal readings that may be caused by the accumulation, ensuring the long-term stability of the water meter performance, and also eliminating the need for users and water supply companies to manually clean the water meter regularly, reducing the demand for professional maintenance personnel resources, and reducing the use and maintenance costs of the water meter.

Description

Technical Field

[0001] The invention relates to the technical field of intelligent water meters, in particular to a large-caliber wireless remote valve-controlled water meter. Background Art

[0002] Large-caliber wireless remote valve-controlled water meters are an advanced smart water meter technology designed to more effectively monitor and manage water flows in large water supply systems. The key feature of this water meter is that it can remotely transmit data through wireless technology and can automatically complete data transmission and valve control. This water meter greatly simplifies the traditional water fee management and collection process and is suitable for efficient management of modern communities.

[0003] Specifically, users can use IC cards and other means to prepay water meters at convenient times and places, and automatically complete the meter reading and payment process without having to enter the residence for inspection or manually calculate the water fee. For example, in the Chinese invention patent with publication number CN106652211B, a smart card water meter is disclosed, which installs a valve that can be automatically closed when there is no electricity in the mechanical water meter, and superimposes a coded smart card circuit on the mechanical water meter; during the water supply process, the charging state of each water supply unit generated by the mechanical detection and measurement of the water meter is instantly powered on, and a new round of water supply is carried out after the smart card interactive communication and data exchange confirm the charging.

[0004] Although the wireless remote valve-controlled water meters available on the market have greatly reduced the human resources required for traditional water meter reading and maintenance through automated processing, water stains and scale are likely to accumulate on the surface of the impeller inside the water meter after long-term use. The accumulation of scale on the impeller surface will reduce the contact area between the water flow and the impeller, and reduce the driving efficiency of the water flow on the impeller. In addition, the weight and balance of the impeller may change due to the uneven accumulation of scale, affecting the rotation speed and stability of the impeller, thereby affecting the metering accuracy of the water meter. Therefore, this type of wireless remote valve-controlled water meter still needs regular inspection, and the effect of saving human resources is not ideal.

[0005] Therefore, the present invention provides a large-caliber wireless remote valve-controlled water meter to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a large-caliber wireless remote valve-controlled water meter, which is used to solve the technical problem that the internal impeller of the current remote valve-controlled water meter is prone to scale after long-term use, and human resources are required to regularly inspect and handle the water meter.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: A large-caliber wireless remote valve-controlled water meter, comprising a housing, a metering cavity is formed at the bottom of the housing, and a plurality of impellers that can rotate with the water flow are arranged in the metering cavity;

[0008] A card reader mechanism for inserting an IC card is fixedly mounted on the surface of the housing, and a card insertion slot is provided on the front of the card reader mechanism;

[0009] The interior of the housing is provided with a plurality of scraping mechanisms corresponding to the impellers and located directly above the metering cavity. When the user inserts the IC card into the card slot, the plurality of scraping mechanisms can extend downward into the metering cavity and scrape off the scale on the surface of the corresponding impeller.

[0010] Preferably, a rotating shaft with a vertical axis is rotatably installed in the outer shell, and a plurality of impellers are evenly distributed and fixedly connected to the bottom of the rotating shaft. A partition fixedly sleeved on the rotating shaft is also rotatably installed in the outer shell, and a metering chamber is formed between the bottom surface of the partition and the inner wall of the outer shell.

[0011] Preferably, a plurality of reserved holes are provided on the surface of the partition, each of which includes two symmetrical strip holes, and each scraping mechanism includes two symmetrical scrapers whose bottoms are inserted into the corresponding strip holes, and a spacing adapted to the thickness of the impeller is formed between the two symmetrical scrapers, so that the two scrapers can respectively contact the two sides of the impeller surface when they descend.

[0012] Preferably, the surface of the rotating shaft is movably sleeved with a sleeve 1 located directly above the partition, the tops of every two symmetrical scraping mechanisms are commonly fixedly connected with an L-shaped bracket, and the top of each L-shaped bracket is fixedly connected to the circumferential surface of sleeve 1, and sleeve 1 can descend when an IC card is inserted into the card slot, and can rise and reset after the IC card is pulled out.

[0013] Preferably, the surface of sleeve one is rotatably sleeved with sleeve two, and a push rod is interspersed and connected at the connection between the card reading mechanism and the shell, and the two ends of the push rod are respectively located inside the card insertion slot and the shell, so that the user can push the push rod to move toward the shell after inserting the IC card into the card insertion slot, and one end of the push rod located inside the shell is rotatably connected to an inclined movable rod, and the downward end of the movable rod is rotatably connected to the circumferential surface of sleeve two.

[0014] Preferably, a spring is sleeved on the rotating shaft, and the spring is located between the partition and the sleeve one to support the sleeve one.

[0015] Preferably, two annular protrusions symmetrically arranged in upper and lower directions are formed on the inner wall of the outer shell, an annular mounting groove is formed between the two annular protrusions, a bearing is installed in the annular mounting groove, a partition is located in the annular mounting groove and installed on the inner ring of the bearing, and a sealing ring is installed between the partition and the bearing, and the inner wall of each strip hole also has a silicone ring to wrap the scraper.

[0016] Preferably, the valve-controlled water meter can be recharged online through remote wireless technology, and a QR code is provided on the surface of the card reader mechanism, so that the user can recharge by scanning the QR code, and the push rod can be pushed into the shell during recharging.

[0017] Preferably, a reserved cavity is provided in the card reading mechanism and is located above the card insertion slot. A travel groove is provided between the reserved cavity and the card insertion slot along the length direction of the push rod. The push rod is located at the top of one side of the card insertion slot and is fixedly connected with a vertical rod which is longitudinal and extends into the reserved cavity. A pushing mechanism is provided in the reserved cavity for pushing the vertical rod toward the direction of the shell when the user uses remote online recharge or scans a QR code to recharge.

[0018] Preferably, the pushing mechanism includes a servo motor fixedly installed in the card reading mechanism with the output shaft facing downward, the bottom of the servo motor is fixedly connected to a rotating shaft located in a reserved cavity, a cam is fixedly sleeved on the rotating shaft, and the vertical rod abuts against the surface of the cam, so that the servo motor can drive the rotating shaft to rotate one circle when the user recharges remotely online or scans a QR code to recharge.

[0019] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0020] Firstly, the water meter can automatically clean the accumulation on the impeller surface during each pre-charge through the built-in scraper mechanism, which helps to maintain the normal operation of the internal mechanical parts of the water meter and reduce abnormal readings that may be caused by accumulation, ensuring the long-term stability of the water meter performance. It also eliminates the need for users and water supply companies to manually clean the water meter regularly, reducing the demand for professional maintenance personnel resources and lowering the cost of using and maintaining the water meter.

[0021] Secondly, the water meter can push the vertical rod and the push rod into the casing once through a rotation of the cam, so that the scraper can clean the surface of the impeller, allowing the user to scrape and clean the impeller by remote online recharge; and the cam also realizes the limitation of the vertical rod and the push rod, so that the stroke of the sleeve pushed upward by the spring is limited, which can prevent the bottom of the scraper from escaping from the strip hole, causing the scraping mechanism to be unable to follow the impeller selection problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic front view of the structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 Schematic diagram of the cross-section structure along line AA;

[0025] Figure 4It is a schematic diagram of the structural decomposition of the present invention;

[0026] Figure 5 This is a schematic diagram of the disassembly of the housing structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the local structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the partial structure decomposition of the present invention;

[0029] Figure 8 It is a schematic cross-sectional view of the structure of the present invention;

[0030] Fig. 9 It is another schematic cross-sectional view of the structure of the present invention.

[0031] In the figure: 1. casing; 2. metering chamber; 3. impeller; 4. card reader; 5. card slot; 6. scraper; 7. rotating shaft; 8. partition; 9. reserved hole; 10. sleeve one; 11. annular protrusion; 12. bearing; 14. L-shaped bracket; 15. spring; 16. sleeve two; 17. push rod; 18. movable rod; 19. reserved chamber; 20. travel groove; 21. vertical rod; 22. rotating shaft; 23. cam; 24. servo motor; 25. QR code. DETAILED DESCRIPTION

[0032] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0033] See also Figure 1-Figure 9 The present invention provides a large-caliber wireless remote valve-controlled water meter, comprising a housing 1, a metering cavity 2 is formed at the bottom of the housing 1, and a plurality of impellers 3 are arranged in the metering cavity 2 to rotate along with the water flow, so as to record the water consumption. The impeller 3 can use blades made of ceramic materials, which can effectively avoid magnetic interference and have excellent corrosion resistance and high durability;

[0034] A card reader 4 for inserting an IC card is fixedly installed on the surface of the housing 1, and a card slot 5 is provided on the front of the card reader 4. When recharging, the user can obtain the water consumption by observing the water meter and insert the IC card to recharge the balance. The interior of the housing 1 is provided with a plurality of scraping mechanisms 6 corresponding to the impeller 3 and located directly above the metering chamber 2. When the user inserts the IC card into the card slot 5 to pre-charge the water fee, the plurality of scraping mechanisms 6 can extend downward into the metering chamber 2 and scrape off the scale on the surface of the corresponding impeller 3. The scraping mechanism 6 built into the water meter can automatically clean the accumulation on the surface of the impeller 3 each time the pre-charge is made, which helps to maintain the normal operation of the mechanical parts inside the water meter and reduce the abnormal readings that may be caused by the accumulation, ensuring the long-term stability of the water meter performance, and also eliminating the need for users and water supply companies to manually clean the water meter regularly, reducing the demand for professional maintenance personnel resources and reducing the use and maintenance costs of the water meter. In addition, the design of the water meter allows the user to automatically complete the cleaning process while inserting the IC card for pre-charging, thereby improving the convenience and satisfaction of the user.

[0035] The specific formation method of the metering chamber 2 in the water meter is as follows: a rotating shaft 7 with a vertical axis is rotatably installed in the outer shell 1, and multiple impellers 3 are evenly distributed and fixedly connected to the bottom of the rotating shaft 7. A partition 8 fixedly sleeved on the rotating shaft 7 is also rotatably installed in the outer shell 1. The metering chamber 2 is formed between the bottom surface of the partition 8 and the inner wall of the outer shell 1. The water flow in the pipeline will flow through the metering chamber 2 and drive the multiple impellers 3 and the rotating shaft 7 to rotate, thereby achieving the purpose of metering.

[0036] Furthermore, when the rotating shaft 7 rotates, the multiple scraping mechanisms 6 should rotate synchronously with the impeller 3. A multiple reserved holes 9 can be opened on the surface of the partition 8, each reserved hole 9 includes two symmetrical strip holes, and each scraping mechanism 6 includes two symmetrical scrapers with the bottom inserted into the corresponding strip holes. In this way, the rotating shaft 7 will drive the scraping mechanism 6 and the partition 8 to be selected synchronously when rotating. Since the scrapers are always inserted in the strip holes, the scrapers can rotate synchronously with the rotating shaft 7 as the central axis, and the two symmetrical scrapers can always remain directly above the corresponding impeller 3. In addition, a spacing that matches the thickness of the impeller 3 is formed between the two symmetrical scrapers, so that the two scrapers can respectively contact the two sides of the surface of the impeller 3 when descending, thereby scraping off the accumulation on the surface of the impeller 3.

[0037] The width and length of the scraper should not be less than the width and length of the impeller 3, so that when the scraper moves downward and contacts the surface of the impeller 3, it can completely cover the surface area of ​​the impeller 3, so as to achieve comprehensive cleaning of the accumulation on both sides of the surface of the impeller 3.

[0038] Specifically, in order to enable the multiple scraping mechanisms 6 to move downward when the IC card is inserted into the card slot 5, a sleeve 10 located directly above the partition 8 is movably sleeved on the surface of the rotating shaft 7, and the tops of every two symmetrical scraping mechanisms 6 are commonly fixedly connected with an L-shaped bracket 14, and the top of each L-shaped bracket 14 is fixedly connected to the circumferential surface of the sleeve 10. The sleeve 10 can descend when the IC card is inserted into the card slot 5, and drive all the scrapers to extend downward into the metering chamber 2, so that the scrapers contact the surface of the impeller 3 and scrape off the accumulated materials on its surface. At the same time, the sleeve 10 can rise and reset after the IC card is pulled out.

[0039] For further information, see Figure 3 and Figure 8 A sleeve 2 16 is rotatably sleeved on the surface of the sleeve 10, and a push rod 17 is interlaced and connected at the connection between the card reading mechanism 4 and the shell 1. The two ends of the push rod 17 are respectively located in the card insertion slot 5 and the inside of the shell 1, so that the user can push the push rod 17 to move toward the shell 1 after inserting the IC card into the card insertion slot 5. One end of the push rod 17 located in the shell 1 is rotatably connected to an inclined movable rod 18, and the downward end of the movable rod 18 is rotatably connected to the circumferential surface of the sleeve 2 16, so that after the push rod 17 is pushed by the IC card inserted into the card insertion slot 5, one end of the push rod 17 will drive the upward side of the movable rod 18 to move synchronously, so that the downward side of the movable rod 18 will push the sleeve 10 to move linearly downward along the axial direction of the rotating shaft 7, so that each scraper will extend downward into the metering cavity 2 and scrape off the accumulated materials on the surface of the impeller 3, so as to achieve the purpose of removing scale.

[0040] The specific reason why the sleeve 10 can rise and reset after the IC card is pulled out is that the water meter has a spring 15 sleeved on the rotating shaft 7, and the spring 15 is located between the partition 8 and the sleeve 10 to support the sleeve 10. When the sleeve 10 is pushed downward, the spring 15 can be squeezed and contracted. After the user pulls the IC card out of the card slot 5, the spring 15 can rebound by its own elasticity and push the sleeve 10 upward to reset.

[0041] It should be noted that two annular protrusions 11 are formed on the inner wall of the outer shell 1, and an annular mounting groove is formed between the two annular protrusions 11. A bearing 12 is installed in the annular mounting groove. The partition 8 is located in the annular mounting groove and is installed on the inner ring of the bearing 12. A sealing ring is installed between the partition 8 and the bearing 12. The inner wall of each strip hole also has a silicone ring to wrap the scraper, thereby filling the gap between the scraper and the inner wall of the strip hole, so that a closed space can be formed inside the metering cavity 2, and only the fluid in the pipes on both sides of the water meter is allowed to flow. Such a design will be more reasonable.

[0042] In addition, the card slot 5 should have a commonly used locking and positioning mechanism, such as a snap locking structure, an electromagnetic locking mechanism or a clamping mechanism. The locking mechanism can ensure that the IC card will not be accidentally removed during the transaction, and ensure that the contact point with the card reader can maintain good and stable contact, thereby ensuring the continuity and accuracy of data transmission.

[0043] In addition, in addition to using IC card recharge, the valve-controlled water meter can also be recharged online through remote wireless technology, and a QR code 25 is provided on the surface of the card reader 4, so that the user can recharge by scanning the QR code 25, and the push rod 17 can be pushed toward the housing 1 during recharging, so that in addition to being pushed by the IC card, the user can also scrape and clean the impeller 3 by using remote online recharge.

[0044] Specifically, a reserved cavity 19 is opened in the card reading mechanism 4 and is located above the card insertion slot 5. A travel groove 20 is opened between the reserved cavity 19 and the card insertion slot 5 along the length direction of the push rod 17. The push rod 17 is located on the top of one side of the card insertion slot 5 and is fixedly connected with a vertical rod 21 which is longitudinal and extends into the reserved cavity 19. A pushing mechanism is provided in the reserved cavity 19 for pushing the vertical rod 21 toward the housing 1 when the user uses remote online recharge or scans the QR code 25 for recharge. The pushing mechanism includes a servo motor 24 fixedly installed in the card reader mechanism 4 with its output shaft facing downward. The bottom of the servo motor 24 is fixedly connected to a rotating shaft 22 located in the reserved cavity 19. A cam 23 is fixedly sleeved on the rotating shaft 22, and the vertical rod 21 contacts the surface of the cam 23. When the user recharges remotely online or scans a QR code 25 for recharge, the servo motor 24 can rotate the output shaft one circle after receiving the remote command, and drive the rotating shaft 22 to rotate one circle. The rotating shaft 22 will drive the cam 23 to rotate one circle along its axial direction, and the cam 23 can push the vertical rod 21 and the push rod 17 into the housing 1 during the rotation process, thereby realizing the cleaning of the surface of the impeller 3 by the scraper, and the cam 23 also realizes the limiting of the vertical rod 21 and the push rod 17, so that the stroke of the sleeve 10 pushed upward by the spring 15 is limited, which can prevent the bottom of the scraper from escaping from the strip hole, causing the problem that the scraping mechanism 6 cannot follow the selection of the impeller 3.

[0045] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0046] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0047] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A large-caliber wireless remote valve-controlled water meter, comprising a housing (1), a metering cavity (2) formed at the bottom of the housing (1), a plurality of impellers (3) capable of rotating along with a water flow, and characterized in that: A card reading mechanism (4) for inserting an IC card is fixedly mounted on the surface of the housing (1), and a card insertion slot (5) is provided on the front of the card reading mechanism (4); A plurality of scraping mechanisms (6) are arranged inside the housing (1) and are corresponding in number to the impellers (3) and are located directly above the metering chamber (2). When a user inserts an IC card into the card insertion slot (5), the plurality of scraping mechanisms (6) can extend downward into the metering chamber (2) and scrape away scale on the surface of the corresponding impeller (3); A rotating shaft (7) with a vertical axis is rotatably mounted in the housing (1); a plurality of impellers (3) are fixedly connected to the bottom of the rotating shaft (7) at equal intervals; a partition (8) fixedly sleeved on the rotating shaft (7) is also rotatably mounted in the housing (1); and a metering chamber (2) is formed between the bottom surface of the partition (8) and the inner wall of the housing (1); The surface of the partition plate (8) is provided with a plurality of reserved holes (9), each reserved hole (9) includes two symmetrical strip holes, each scraping mechanism (6) includes two symmetrical scrapers whose bottoms are inserted into the corresponding strip holes, and a spacing matching the thickness of the impeller (3) is formed between the two symmetrical scrapers, so that the two scrapers can respectively contact the two sides of the surface of the impeller (3) when descending; The surface of the rotating shaft (7) is movably sleeved with a sleeve one (10) located just above the partition (8); the tops of each of the two symmetrical scraping mechanisms (6) are commonly fixedly connected with an L-shaped bracket (14); and the top of each L-shaped bracket (14) is fixedly connected to the circumferential surface of the sleeve one (10); the sleeve one (10) can descend when an IC card is inserted into the card insertion slot (5), and can rise and reset after the IC card is removed; The surface of the sleeve one (10) is rotatably sleeved with the sleeve two (16); a push rod (17) is interlaced and connected at the connection between the card reading mechanism (4) and the shell (1); two ends of the push rod (17) are respectively located inside the card insertion slot (5) and the shell (1), so that after the user inserts the IC card into the card insertion slot (5), the push rod (17) can be pushed to move toward the shell (1); one end of the push rod (17) located inside the shell (1) is rotatably connected to an inclined movable rod (18); the downward end of the movable rod (18) is rotatably connected to the circumferential surface of the sleeve two (16).

2. A large-caliber wireless remote valve-controlled water meter according to claim 1, characterized in that: A spring (15) is sleeved on the rotating shaft (7), and the spring (15) is located between the partition plate (8) and the sleeve one (10) to support the sleeve one (10).

3. A large-caliber wireless remote valve-controlled water meter according to claim 1, characterized in that: Two annular protrusions (11) are formed on the inner wall of the housing (1) and are symmetrical in both directions. An annular mounting groove is formed between the two annular protrusions (11). A bearing (12) is mounted in the annular mounting groove. The partition (8) is located in the annular mounting groove and is mounted on the inner ring of the bearing (12). A sealing ring is installed between the partition (8) and the bearing (12). The inner wall of each strip hole also has a silicone ring to wrap the scraper.

4. A large-caliber wireless remote valve-controlled water meter according to claim 1, characterized in that: The valve-controlled water meter can be recharged online through remote wireless technology, and a two-dimensional code (25) is provided on the surface of the card reading mechanism (4), so that the user can recharge by scanning the two-dimensional code (25), and when recharging, the push rod (17) can be pushed toward the inside of the housing (1).

5. A large-caliber wireless remote valve-controlled water meter according to claim 4, characterized in that: The card reading mechanism (4) is provided with a reserved cavity (19) located above the card insertion slot (5), a travel groove (20) is provided between the reserved cavity (19) and the card insertion slot (5) along the length direction of the push rod (17), the push rod (17) is fixedly connected to a vertical rod (21) located at the top of one side of the card insertion slot (5) and extending into the reserved cavity (19), and a pushing mechanism is provided in the reserved cavity (19) for pushing the vertical rod (21) to move toward the housing (1) when the user performs remote online recharge or scans a QR code (25) to recharge.

6. A large-caliber wireless remote valve-controlled water meter according to claim 5, characterized in that: The pushing mechanism comprises a servo motor (24) fixedly mounted in the card reading mechanism (4) with its output shaft facing downwards, the bottom of the servo motor (24) being fixedly connected to a rotating shaft (22) located in a reserved cavity (19), a cam (23) being fixedly sleeved on the rotating shaft (22), and a vertical rod (21) being in contact with a surface of the cam (23), so that when a user performs remote online recharge or scans a QR code (25) to recharge, the servo motor (24) can drive the rotating shaft (22) to rotate one circle.

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