High-precision bidirectional metering rotor dry type pulse water meter

Abstract

The application relates to the technical field of water meters, and discloses a high-precision bidirectional measurement rotor dry type pulse water meter, which comprises a water meter whole body, the water meter whole body comprises an upper table body A at the top and a lower table body B at the bottom, and a filter screen is arranged in a water flow through hole for preventing the lower table body B from being contaminated; in order to maximize the isolation of dirt, the opening diameter of the filter screen is small, and the opening number is large, so that various dirt is maximally isolated from entering the B under the condition of ensuring the flow, the dirt is prevented from interfering with the work of the water meter whole body, and the reading is not accurate; in addition, due to the small opening diameter and the large opening number of the filter screen, the pressure on both sides of the filter screen is different, under the action of external water flow, the dirt is easily attached to the filter screen under the action of pressure and water flow impact, the filter screen is blocked to make the water normally flow, and the reading of the water meter whole body is not accurate.

Description

Technical Field

[0001] This invention relates to the field of water meter technology, specifically to a high-precision bidirectional metering rotary dry pulse water meter. Background Technology

[0002] A water meter is an instrument used to measure water flow. Most of them measure the cumulative flow of water. They are generally divided into two categories: volumetric water meters and velocity water meters. Originating in the UK, water meters have been developed for nearly two hundred years. When selecting a water meter, you should first estimate the flow rate and range you usually use, and then choose the water meter with the closest commonly used flow rate as your first choice.

[0003] With the development of modern technology, water meters on the market are now divided into two main categories: traditional mechanical transmission water meters and pulse water meters.

[0004] Traditional water supply methods are divided into two main categories: urban domestic water and industrial water. Industrial water differs from urban water in that the pipelines for industrial water supply contain more and more diverse contaminants. These contaminants can easily clog the openings on the meter during water flow, thus hindering the rotation of the internal rotor and preventing accurate readings, which can lead to losses for businesses.

[0005] In addition, some water meters come with built-in filters. However, the diameter of the openings on the filter screen is small and the number of openings is large, which leads to different pressures on both sides of the filter screen. Under the action of external water flow, dirt is easily attached to the filter screen under the pressure and impact of water flow, causing the filter screen to block the normal flow of water and making the overall reading of the water meter inaccurate. Summary of the Invention

[0006] This invention provides a high-precision bidirectional metering rotary dry pulse water meter, which has the beneficial effect of cleaning the filter screen by driving a cleaning device through water flow. This solves the problem mentioned in the background art where dirt clogs the water meter, causing poor water flow and inaccurate water meter readings.

[0007] The present invention provides the following technical solution: a high-precision bidirectional metering rotary dry pulse water meter, comprising a water meter body, the water meter body comprising an upper meter body A at the top and a lower meter body B at the bottom, a first rotating shaft being disposed inside the lower meter body B, and the first rotating shaft extending into the upper meter body A, a rotor being mounted on a portion of the first rotating shaft within the area of ​​the lower meter body B, a refractor being mounted on a portion of the first rotating shaft within the area of ​​the upper meter body A, and a light transceiver being disposed on the inner wall of the upper meter body A;

[0008] The device is also provided with a water flow passage, and a filter screen is installed inside the water flow passage. The filter screen is used to filter the water entering the water flow passage.

[0009] As an optional solution for the high-precision bidirectional metering rotary dry pulse water meter of the present invention, a cleaning roller is also provided on the outer side of the water meter as a whole, and the cleaning roller is used to clean the outer surface of the filter screen.

[0010] A connecting rod is also provided on the first rotating shaft, and the cleaning roller is rotatably mounted on the connecting rod.

[0011] As an optional solution of the high-precision bidirectional metering rotary dry pulse water meter of the present invention, wherein: a first cleaning mechanism is provided on the cleaning drum, the first cleaning mechanism includes a first mounting base provided on the cleaning drum, a second rotating shaft is slidably provided in the first mounting base, and a cleaning hook is rotatably provided on the second rotating shaft, the cleaning hook being used to hook up dirt.

[0012] As an optional solution of the high-precision bidirectional metering rotary dry pulse water meter of the present invention, the cleaning hook is further provided with a spherical protrusion, and the first mounting base is further provided with a guide groove that is compatible with the spherical protrusion, and the spherical protrusion abuts against the guide groove.

[0013] As an optional solution of the high-precision bidirectional metering rotary dry pulse water meter of the present invention, wherein: a first sliding mechanism is further provided on the second rotating shaft, and the second rotating shaft is slidably disposed in the first mounting base through the first sliding mechanism;

[0014] The first sliding mechanism includes a first slider disposed on the second rotating shaft, and the first mounting base is further provided with a first sliding groove that is adapted to the first slider, and the first slider is slidably disposed in the first sliding groove.

[0015] As an optional solution of the high-precision bidirectional metering rotary dry pulse water meter of the present invention, the cleaning hook is further provided with a spring piece, and the cleaning hook is also elastically connected to the first mounting base through the spring piece.

[0016] As an optional solution of the high-precision bidirectional metering rotary dry pulse water meter of the present invention, wherein: the cleaning roller is further provided with a second cleaning mechanism, the second cleaning mechanism being used to remove dirt from the water flow hole;

[0017] The second cleaning mechanism includes a second mounting base disposed on the cleaning roller, a mounting block slidably disposed within the second mounting base, and a shovel block disposed on the mounting block for removing dirt.

[0018] As an optional solution for the high-precision bidirectional metering rotary dry pulse water meter of the present invention, the mounting block is further provided with a spring, the mounting block is elastically connected to the second mounting seat through the spring, and the mounting block is further provided with a damper used in conjunction with the spring, the damper being used to prevent the spring from repeatedly rebounding.

[0019] As an optional solution of the high-precision bidirectional metering rotary dry pulse water meter of the present invention, wherein: the mounting block is further provided with a second sliding mechanism, and the mounting block is slidably connected to the second mounting base through the second sliding mechanism;

[0020] The second sliding mechanism includes a second slider disposed on the mounting block, and a second groove adapted to the second slider is provided on the second mounting base, and the second slider is slidably disposed in the second groove.

[0021] As an optional solution of the high-precision bidirectional metering rotary dry pulse water meter of the present invention, wherein: a vibration mechanism is further provided in the second mounting base, the vibration mechanism being used to cause the mounting block to vibrate when sliding;

[0022] The vibration mechanism includes a first abutment block disposed within the second mounting base, and a second abutment block adapted to the first abutment block is also disposed on the mounting block, wherein the first abutment block and the second abutment block engage intermittently.

[0023] The present invention has the following beneficial effects:

[0024] 1. This high-precision bidirectional metering rotary dry pulse water meter has a filter screen installed inside the water flow passage to prevent contamination of the lower meter body B. To maximize the isolation of contaminants, the filter screen has a small opening diameter and a large mesh size. This ensures water flow while minimizing the entry of various contaminants into B, preventing them from interfering with the overall operation of the water meter and causing inaccurate readings. Furthermore, due to the small opening diameter and large number of openings on the filter screen, pressure differences occur on both sides. Under the influence of external water flow, contaminants easily adhere to the filter screen under pressure and water flow impact, causing blockage and hindering normal water flow, resulting in inaccurate overall water meter readings.

[0025] Therefore, a cleaning roller is installed on the outside of the water meter. The cleaning roller can make a circular motion on the outside of the water meter while the first shaft rotates, and the cleaning roller comes into contact with the filter screen. Thus, the dirt on the outer wall of the filter screen is cleaned by the circular motion of the cleaning roller.

[0026] 2. This high-precision bidirectional metering rotary dry pulse water meter addresses the challenge of handling various types of contaminants within the pipeline, particularly those in the form of strip-shaped debris, which are difficult to remove using a single cleaning roller. Therefore, a first cleaning mechanism is incorporated into the cleaning roller. This mechanism ensures that the cleaning roller removes as much of the strip-shaped debris as possible during the cleaning process of the filter screen, allowing it to be washed away by the water flow. As the cleaning roller rotates around the entire water meter via the first rotating shaft, it approaches the filter screen, and the cleaning hooks on the roller hook up and collect the debris. This causes the debris to become entangled with the hooks. Once the hooks have caught the debris, the rotation of the cleaning roller carries it away from the surface of the filter screen, thus completing the cleaning of the strip-shaped debris.

[0027] 3. In order to ensure that the cleaning hook penetrates the dirt and becomes entangled with it, this high-precision bidirectional metering rotary dry pulse water meter has a spherical protrusion on the cleaning hook and a guide groove on the first mounting base. Both the spherical protrusion and the guide groove have a certain curvature and abut against each other. In addition, a first sliding mechanism is provided on the second rotating shaft, which is slidably connected to the first mounting base through the first sliding mechanism. After the cleaning hook becomes entangled with the dirt, as the cleaning drum continues to rotate, the spherical protrusion on the cleaning hook will slide along the curved surface of the guide groove, thereby applying a thrust to the second rotating shaft and causing it to slide a short distance closer to the dirt. This allows the cleaning hook to extend outward to adapt to the rotation of the cleaning drum.

[0028] 4. This high-precision bidirectional metering rotary dry pulse water meter may contain granular contaminants such as sand and pebbles with irregular outer surfaces inside the pipe. Under the impact of water flow, the sharp edges of these contaminants may get stuck in the filter holes of the filter screen, causing blockage. Furthermore, the cleaning device mentioned in the embodiment cannot effectively clean such contaminants. Therefore, a second cleaning mechanism is also provided on the cleaning roller. The second cleaning mechanism is used for directional cleaning of granular contaminants. The second cleaning mechanism includes a second mounting base set on the cleaning roller, in which a mounting block is slidably arranged. The mounting block is equipped with a shovel block, which is used to remove contaminants. When the shovel block on the cleaning roller approaches the contaminants on the filter screen, the shovel block has a certain slope and inward curvature, making it act like a shovel, thereby removing the contaminants on the filter screen and removing contaminants that are inconvenient to remove with the cleaning hook. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 This is a schematic diagram of the structure of the refracting mirror and the light transceiver in this invention.

[0031] Figure 3 This is a schematic diagram of the internal structure of the present invention.

[0032] Figure 4 This is a magnified view of a portion of point a in this invention.

[0033] Figure 5 This is a schematic diagram of the first cross-section of the present invention.

[0034] Figure 6 For the purposes of this invention Figure 4 A magnified view of a section at point b.

[0035] Figure 7 For the present invention Figure 5 A magnified view of a section at point c.

[0036] Figure 8 This is a schematic diagram of the second cross section of the present invention.

[0037] Figure 9 For the present invention Figure 4 A magnified view of a portion at point d.

[0038] Figure 10 For the present invention Figure 8 A magnified view of a section at point e.

[0039] In the diagram: 1. Overall water meter; A. Upper meter body; B. Lower meter body; 2. First rotating shaft; 21. Rotor; 3. Refracting mirror; 31. Light transceiver; 4. Water flow hole; 41. Filter screen; 5. Cleaning roller; 61. First mounting base; 62. Second rotating shaft; 63. Cleaning hook; 7. Spherical protrusion; 71. Guide groove; 81. First slider; 82. First slide groove; 9. Spring; 101. Second mounting base; 102. Mounting block; 103. Shovel block; 104. Spring; 105. Damper; 111. Second slider; 112. Second slide groove; 13. Vibration mechanism; 131. First contact block; 132. Second contact block; 14. Connecting rod. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0041] Please see Figures 1-3A high-precision bidirectional metering rotary dry pulse water meter includes a water meter body 1, which includes an upper meter body A at the top and a lower meter body B at the bottom. A first rotating shaft 2 is provided inside the lower meter body B and extends into the upper meter body A. A rotor 21 is installed on the portion of the first rotating shaft 2 in the area of ​​the lower meter body B, and a refractor 3 is installed on the portion of the first rotating shaft 2 in the area of ​​the upper meter body A. A light transceiver 31 is provided on the inner wall of the upper meter body A.

[0042] The lower body B is also provided with a water flow hole 4, and a filter screen 41 is installed in the water flow hole 4. The filter screen 41 is used to filter the water entering the water flow hole 4.

[0043] A cleaning roller 5 is also provided on the outside of the water meter assembly 1. The cleaning roller 5 is used to clean the outer surface of the filter screen 41.

[0044] A connecting rod 14 is also provided on the first rotating shaft 2, and the cleaning roller 5 is rotatably mounted on the connecting rod 14.

[0045] In this embodiment:

[0046] Pulse counting: Compared with traditional mechanical transmission water meters, this solution uses photoelectric induction for counting. When water flows into the lower meter body B through the water flow hole 4, the continuous impact of the water flow causes the rotor 21 to drive the first rotating shaft 2 to rotate within the water meter body 1. Since the first rotating shaft 2 is equipped with a refracting mirror 3 in the area of ​​the upper meter body A, the refracting mirror 3 will cooperate with the light transceiver 31 on the inner wall of the upper meter body A to send out command pulses to update the reading of the water meter body 1.

[0047] The cooperation between the refracting mirror 3 and the light transceiver 31: When water enters the lower meter body B and causes the first rotating shaft 2 to rotate continuously, the refracting mirror 3 installed on the first rotating shaft 2 will also rotate within A along with the first rotating shaft 2. Whenever the refracting mirror 3 rotates within A to the same horizontal position as the light transceiver 31, it can refract the light signal emitted by the light transceiver 31 back to the light transceiver 31. When the light transceiver 31 receives the refracted signal, it can convert the light signal into an electrical signal and feed it back to the meter body, thereby updating the reading and completing the measurement work.

[0048] Pollution prevention: Industrial water differs from urban water in that industrial water pipelines contain more and more diverse pollutants than urban domestic water pipelines, which can easily clog the openings on the lower body B during water flow.

[0049] Therefore, in order to prevent contamination of the lower meter body B, a filter screen 41 is installed in the water flow hole 4. In order to isolate contaminants to the greatest extent, the opening diameter of the filter screen 41 is small and the mesh number is large. This ensures that while maintaining flow, it isolates various contaminants from entering the B body to the greatest extent, so as to prevent contaminants from interfering with the operation of the water meter as a whole 1 and causing inaccurate readings.

[0050] Decontamination: Due to the small diameter and large number of openings on the filter screen 41, the pressure on both sides of the filter screen 41 is different. Under the action of external water flow, dirt is easily attached to the filter screen 41 under the action of pressure and water flow impact, causing the filter screen 41 to block the normal flow of water, resulting in inaccurate readings of the water meter as a whole 1.

[0051] Therefore, a cleaning roller 5 is provided on the outside of the water meter assembly 1. The cleaning roller 5 can make a circular motion on the outside of the water meter assembly 1 while the first rotating shaft 2 rotates, and the cleaning roller 5 abuts against the filter screen 41. Thus, the dirt on the outer wall of the filter screen 41 is cleaned by the circular motion of the cleaning roller 5.

[0052] In order to enable the cleaning roller 5 to clean the outside of the water meter 1 without the need for an additional drive end, a connecting rod 14 is provided on the first rotating shaft 2. The cleaning roller 5 is rotatably mounted on the connecting rod 14, so that when the water flow impacts the rotor 21 and drives the first rotating shaft 2 to rotate, the connecting rod 14 drives the cleaning roller 5 to perform a circular motion on the outside of the water meter 1, thereby achieving the purpose of cleaning. Example 2

[0053] Please see Figures 3-6 The cleaning roller 5 is provided with a 6, which includes a first mounting base 61 disposed on the cleaning roller 5, a second rotating shaft 62 slidably disposed in the first mounting base 61, and a cleaning hook 63 rotatably disposed on the second rotating shaft 62, the cleaning hook 63 being used to hook up dirt.

[0054] The cleaning hook 63 is also provided with a spherical protrusion 7, and the first mounting base 61 is also provided with a guide groove 71 that is compatible with the spherical protrusion 7, and the spherical protrusion 7 abuts against the guide groove 71.

[0055] The second rotating shaft 62 is also provided with a first sliding mechanism 8, and the second rotating shaft 62 is slidably disposed in the first mounting base 61 through the first sliding mechanism 8;

[0056] The first sliding mechanism 8 includes a first slider 81 disposed on the second rotating shaft 62. The first mounting base 61 is also provided with a first groove 82 that is adapted to the first slider 81, and the first slider 81 is slidably disposed in the first groove 82.

[0057] The second rotating shaft 62 is also provided with a spring piece 9, and the second rotating shaft 62 is also elastically connected to the first mounting base 61 through the spring piece 9.

[0058] In this embodiment:

[0059] Targeted treatment: Due to the variety of dirt in the pipe, it is difficult to deal with the strip dirt by relying solely on the cleaning roller 5. Therefore, a first cleaning mechanism 6 is added to the cleaning roller 5. The first cleaning mechanism 6 enables the cleaning roller 5 to carry away as much strip dirt as possible during the cleaning process of the filter screen 41, so that it can be washed away by the water flow.

[0060] The first cleaning mechanism 6 includes a first mounting base 61 disposed on the cleaning roller 5, a second rotating shaft 62 slidably disposed inside the first mounting base 61, and a cleaning hook 63 rotatably disposed on the second rotating shaft 62, the cleaning hook 63 being used to hook up dirt.

[0061] When the cleaning roller 5 moves in a circular motion around the water meter assembly 1 under the action of the second rotating shaft 2, the cleaning roller 5 approaches the filter screen 41, and the cleaning hook 63 on the cleaning roller 5 approaches the dirt and hooks it, causing the dirt and the cleaning hook 63 to become entangled. When the cleaning hook 63 hooks the dirt, as the cleaning roller 5 rotates, it carries the dirt away from the surface of the filter screen 41, thus completing the cleaning of the strip dirt.

[0062] Entanglement Prevention: To ensure that the cleaning hook 63 can entangle with the dirt it touches, the second rotating shaft 62 is rotatably mounted within the first mounting base 61, and the cleaning hook 63 is equipped with a spring 9. The cleaning hook 63 is also elastically connected to the first mounting base 61 through the spring 9. This allows the cleaning hook 63 to rotate upwards after contacting the dirt to adapt to the size of the dirt. Since the spring 9 is elastic, when the cleaning hook 63 is no longer contacted by the dirt, the elastic potential energy of the spring 9 will pull the cleaning hook 63 back to the base position. This allows the cleaning hook 63 to return to the dirt while performing a reset movement. Since the dirt is now at the bottom of the cleaning hook 63, the cleaning hook 63 will pierce the dirt. Due to the shape of the cleaning hook 63, the dirt is hooked and entangled by the cleaning hook 63, and then driven away from the filter screen 41, thus achieving the purpose of cleaning.

[0063] Dragging: In order to ensure that the cleaning hook 63 penetrates the dirt and makes the dirt entangled with the cleaning hook 63, a spherical protrusion 7 is provided on the cleaning hook 63, and a guide groove 71 is provided on the first mounting base 61. Both the spherical protrusion 7 and the guide groove 71 have a certain curvature and abut against each other. In addition, a first sliding mechanism 8 is provided on the second rotating shaft 62, and the second rotating shaft 62 is slidably connected in the first mounting base 61 through the first sliding mechanism 8.

[0064] When the cleaning hook 63 becomes entangled with dirt, as the cleaning roller 5 continues to rotate, the spherical protrusion 7 on the cleaning hook 63 slides along the curved surface of the guide groove 71, thereby applying a thrust to the second rotating shaft 62, causing it to slide a short distance towards the side closer to the dirt, thus causing the cleaning hook 63 to extend outward to adapt to the rotation of the cleaning roller 5.

[0065] As a result, when the cleaning roller 5 rotates, the cleaning hook 63 does not immediately follow the cleaning roller 5 to rotate. Instead, it first extends and pauses briefly in its original position before rotating. This increases the contact time between the cleaning hook 63 and the dirt, increasing the chance of the cleaning hook 63 becoming entangled with the dirt, thus improving cleaning efficiency to some extent.

[0066] Meanwhile, since the first cleaning mechanism 6 moves along with the cleaning roller 5, the cleaning hook 63 will reset under the thrust of the water and contact with the filter screen 41 during the movement, thus facilitating the cyclic operation. Example 3

[0067] Please see Figures 3-10 The cleaning roller 5 is also equipped with a second cleaning mechanism 10, which is used to remove dirt from the water flow hole 4.

[0068] The second cleaning mechanism 10 includes a second mounting base 101 disposed on the cleaning roller 5, a mounting block 102 slidably disposed in the second mounting base 101, and a scraper block 103 disposed on the mounting block 102, the scraper block 103 being used to remove dirt.

[0069] The mounting block 102 is also provided with a spring 104. The mounting block 102 is elastically connected to the second mounting seat 101 through the spring 104. The mounting block 102 is also provided with a damper 105 that is used in conjunction with the spring 104. The damper 105 is used to prevent the spring 104 from repeatedly rebounding.

[0070] The mounting block 102 is also provided with a second sliding mechanism 11, and the mounting block 102 is slidably connected to the second mounting base 101 through the second sliding mechanism 11.

[0071] The second sliding mechanism 11 includes a second slider 111 disposed on the mounting block 102, and a second groove 112 adapted to the second slider 111 is provided on the second mounting base 101, and the second slider 111 is slidably disposed in the second groove 112.

[0072] The second mounting base 101 is also provided with a vibration mechanism 13, which is used to make the mounting block 102 vibrate when sliding.

[0073] The vibration mechanism 13 includes a first abutting block 131 disposed in the second mounting base 101, and a second abutting block 132 that is adapted to the first abutting block 131 is also disposed on the mounting block 102, and the first abutting block 131 and the second abutting block 132 are in intermittent contact.

[0074] In this embodiment:

[0075] Targeted treatment: Since there may be granular dirt such as sand and stones inside the pipe, and the surface of such dirt may be irregular, the sharp edges of such dirt may get stuck in the filter holes of the filter screen 41 under the impact of water flow, causing blockage. The cleaning device mentioned in Example 2 cannot effectively clean such dirt. Therefore, a second cleaning mechanism 10 is also provided on the cleaning roller 5. The second cleaning mechanism 10 is used to perform targeted cleaning of granular dirt.

[0076] Working method: The second cleaning mechanism 10 includes a second mounting base 101 disposed on the cleaning roller 5, a mounting block 102 slidably disposed in the second mounting base 101, and a scraper block 103 disposed on the mounting block 102, the scraper block 103 being used to remove dirt.

[0077] When the shovel block 103 on the cleaning roller 5 approaches the dirt on the filter screen 41, the surface of the shovel block 103 has a certain slope, making it like a shovel, thus removing the dirt on the filter screen 41 and removing dirt that is inconvenient to remove by the cleaning hook 63.

[0078] To ensure that the dirt removed by the shovel block 103 does not immediately fall back onto the filter screen 41 under the action of water flow, the mounting block 102 is slidably disposed within the shovel block 103. This causes the shovel block 103 to retract short distance into the mounting block 102 during the process of removing dirt. As a result, when the shovel block 103 resets after removing dirt, it slides outward to reset, causing the dirt to change position on the shovel block 103. Even under the impact of water flow, the dirt cannot immediately return to the filter screen 41 and instead shifts with the water flow, thus improving cleaning efficiency to a certain extent.

[0079] In addition, in order to enable the shovel block 103 to be reset on the mounting block 102, a spring 104 is also provided on the mounting block 102. The mounting block 102 is elastically connected to the second mounting seat 101 through the spring 104. The spring 104 pushes the shovel block 103 to be reset through its own elastic potential energy. Furthermore, a damper 105 is also provided on the mounting block 102 to be used in conjunction with the spring 104. The damper 105 is used to prevent the spring 104 from repeatedly rebounding, which could cause the device to fail.

[0080] In order to make the shovel block 103 slide more stably within the mounting block 102, a second sliding mechanism 11 is also provided on the mounting block 102, and the mounting block 102 is slidably connected to the second mounting base 101 through the second sliding mechanism 11.

[0081] The second sliding mechanism 11 includes a second slider 111 disposed on the mounting block 102, and a second groove 112 adapted to the second slider 111 is provided on the second mounting base 101, and the second slider 111 is slidably disposed in the second groove 112.

[0082] Vibration: In order to improve the cleaning effect and to make the shovel block 103 vibrate during cleaning to prevent dirt from getting stuck between the filter screen 41 and being unable to be discharged, a vibration mechanism 13 is also provided in the second mounting base 101. The vibration mechanism 13 is used to make the mounting block 102 vibrate when sliding.

[0083] The vibration mechanism 13 includes a first abutting block 131 disposed in the second mounting base 101, and a second abutting block 132 that is adapted to the first abutting block 131 is also disposed on the mounting block 102, and the first abutting block 131 and the second abutting block 132 are in intermittent contact.

[0084] During the sliding process of the mounting block 102, the second abutting block 132 on the mounting block 102 makes gap contact with the second abutting block 132 on the inner wall of the second mounting seat 101, causing the mounting block 102 to shake within the second mounting seat 101, thereby generating vibration. This causes the shovel block 103 mounted on the mounting block 102 to also vibrate, thus causing the tightly stuck dirt to vibrate and loosen its attachment on the filter screen 41, allowing it to be discharged.

[0085] Necessary auxiliary design: In order to meet the vibration requirements, the two ends of the damper 105 are connected to the mounting block 102 and the second mounting seat 101 through ball joints, respectively, to adapt to the vibration of the mounting block 102 in the second mounting seat 101.

[0086] In addition, the size of the second slider 111 will be slightly smaller than the size of the second slide groove 112, so as to prevent the second slider 111 and the second slide groove 112 from fitting too tightly, which would prevent the mounting block 102 from vibrating in the second mounting base 101.

[0087] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0088] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-precision bidirectional metering rotary dry pulse water meter, comprising a water meter assembly (1), the water meter assembly (1) comprising an upper meter body (A) at the top and a lower meter body (B) at the bottom, characterized in that: A first rotating shaft (2) is provided inside the lower body (B), and the first rotating shaft (2) extends into the upper body (A). A rotor (21) is installed on the part of the first rotating shaft (2) in the area of ​​the lower body (B). A refractor (3) is installed on the part of the first rotating shaft (2) in the area of ​​the upper body (A). A light transceiver (31) is provided on the inner wall of the upper body (A). (12) is also provided with a water flow hole (4), and a filter screen (41) is installed in the water flow hole (4). The filter screen (41) is used to filter the water entering the water flow hole (4). A cleaning roller (5) is also provided on the outside of the water meter assembly (1). A first cleaning mechanism (6) is provided on the cleaning roller (5). The first cleaning mechanism (6) includes a first mounting seat (61) provided on the cleaning roller (5). A second rotating shaft (62) is slidably provided in the first mounting seat (61). A cleaning hook (63) is rotatably provided on the second rotating shaft (62). The cleaning hook (63) is used to hook up dirt. The cleaning hook (63) is also provided with a spherical protrusion (7), and the first mounting base (61) is also provided with a guide groove (71) that is compatible with the spherical protrusion (7). The spherical protrusion (7) abuts against the guide groove (71). The cleaning hook (63) is also provided with a spring (9), and the cleaning hook (63) is also elastically connected to the first mounting base (61) through the spring (9). This allows the cleaning hook (63) to rotate upwards after it comes into contact with dirt, so as to adapt to the size of the dirt. Since the spring (9) is elastic, when the cleaning hook (63) is no longer in contact with dirt, the elastic potential energy of the spring (9) will pull the cleaning hook (63) back to the base position, so that the cleaning hook (63) will move closer to the dirt again while making a reset movement. When the cleaning hook (63) gets entangled with dirt, the spherical protrusion (7) on the cleaning hook (63) slides along the curved surface of the guide groove (71), thereby applying a thrust to the second rotating shaft (62) and causing it to slide a short distance towards the side closer to the dirt, thereby causing the cleaning hook (63) to extend outward, increasing the contact time between the cleaning hook (63) and the dirt, and increasing the chance of the cleaning hook (63) getting entangled with the dirt.

2. The high-precision bidirectional metering rotary dry pulse water meter according to claim 1, characterized in that: The cleaning roller (5) is used to clean the outer surface of the filter screen (41); A connecting rod (14) is also provided on the first rotating shaft (2), and the cleaning roller (5) is rotatably mounted on the connecting rod (14).

3. The high-precision bidirectional metering rotary dry pulse water meter according to claim 2, characterized in that: The second rotating shaft (62) is also provided with a first sliding mechanism (8), and the second rotating shaft (62) is slidably disposed in the first mounting base (61) through the first sliding mechanism (8); The first sliding mechanism (8) includes a first slider (81) disposed on the second rotating shaft (62), and a first groove (82) adapted to the first slider (81) is also provided on the first mounting base (61), and the first slider (81) is slidably disposed in the first groove (82).

4. The high-precision bidirectional metering rotary dry pulse water meter according to claim 3, characterized in that: The cleaning roller (5) is also provided with a second cleaning mechanism (10), which is used to remove dirt from the water flow hole (4); The second cleaning mechanism (10) includes a second mounting base (101) disposed on the cleaning roller (5), a mounting block (102) is slidably disposed in the second mounting base (101), and a shovel block (103) is disposed on the mounting block (102) for removing dirt.

5. The high-precision bidirectional metering rotary dry pulse water meter according to claim 4, characterized in that: The mounting block (102) is also provided with a spring (104). The mounting block (102) is elastically connected to the second mounting seat (101) through the spring (104). The mounting block (102) is also provided with a damper (105) that is used in conjunction with the spring (104). The damper (105) is used to prevent the spring (104) from repeatedly rebounding.

6. The high-precision bidirectional metering rotary dry pulse water meter according to claim 5, characterized in that: The mounting block (102) is also provided with a second sliding mechanism (11), and the mounting block (102) is slidably connected to the second mounting base (101) through the second sliding mechanism (11); The second sliding mechanism (11) includes a second slider (111) disposed on the mounting block (102), and a second groove (112) adapted to the second slider (111) is provided on the second mounting base (101), and the second slider (111) is slidably disposed in the second groove (112).

7. The high-precision bidirectional metering rotary dry pulse water meter according to claim 6, characterized in that: The second mounting base (101) is also provided with a vibration mechanism (13), which is used to make the mounting block (102) vibrate when sliding; The vibration mechanism (13) includes a first abutting block (131) disposed in the second mounting base (101), and a second abutting block (132) adapted to the first abutting block (131) is also disposed on the mounting block (102), and the first abutting block (131) and the second abutting block (132) are in intermittent contact.

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