Water meter capable of resisting water quality interference

Abstract

The invention discloses a water meter capable of resisting water quality interference, and relates to the technical field of water meters, the water meter comprises a water meter body, a filter cover is arranged in an inner cavity of the water meter body, a filter assembly is arranged above the filter cover, an impeller is arranged above the filter assembly, the filter assembly comprises a plurality of rotating parts, a plurality of filter holes are uniformly formed in the rotating parts, and the impeller is arranged in the inner cavity of the water meter body. According to the invention, through long-time work of the rotating pieces, part of small-particle suspended solids can be attached to the impeller, when the small-particle suspended solids on the impeller exceed 2% of the self weight, the rotating pieces stop rotating, and the cleaning blocks and the elastic pieces are pulled back by the tension springs to clean the small-particle suspended solids on the rotating pieces; meanwhile, the impeller generates tiny vibration through the rotating block, tiny particle suspended solids on the impeller are shaken off, the shaken-off tiny particle suspended solids are discharged from the water outlet along with water flow, normal work of the impeller is guaranteed, and counting errors of the water meter are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of water meters, in particular to a water meter resistant to water quality interference. Background Art

[0002] A water meter is a measuring instrument for measuring water flow. It can accurately record the amount of water passing through the pipe. The water meter is usually installed at the branch of the household water pipe or the main water supply pipe to accurately measure the amount of water flowing through. Its precise measurement plays a key role in the water supply department's reasonable allocation of water resources, collection of water fees, and users' understanding of their own water usage and saving water.

[0003] A Chinese patent with application number CN202321923508.X discloses a water meter with a filtering function, comprising: a shell, a water inlet end is provided at one end of the shell, a water outlet end is provided at the other end of the shell, and a filtering assembly is provided on one side of the shell located at the water outlet end; the filtering assembly comprises a first filter element fixedly arranged inside the shell, a second filter element is provided on one side of the shell located at the first filter element, and a third filter element is provided on one side of the shell located at the second filter element, and the first filter element, the second filter element and the third filter element are all arranged around the water outlet end; the above application can provide efficient, step-by-step purification filtering effect, facilitate maintenance and cleaning, ensure long-term stable operation and safe water supply, thereby providing users with a cleaner and safer water use experience.

[0004] In the above application, only the filter is vibrated to clean impurities and reduce the probability of the filter being blocked. Then, the suspended particles in the water can re-enter the filter under the drive of the water flow. Long-term use can aggravate the blockage of the filter and cannot effectively clean the suspended particles on the filter. At the same time, if the vibration effect is produced for a long time, it will cause instability of the water flow around the filter. If the opening of the filter cover is set too small, it will affect the water flow rate. If the opening of the filter cover is set too large, the filter cover will lose its filtering function. Secondly, when the water flows through the filter cover, the suspended particles in the water will pass through the filter cover with the flow of water and contact with the impeller and be adsorbed on the impeller. After long-term use, tiny deposits and attachments gradually accumulate, which will affect the rotation of the impeller, thereby causing errors in the water meter counting.

[0005] Therefore, it is necessary to invent a water meter that is resistant to water quality interference to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a water meter that is resistant to water quality interference, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a water meter resistant to water quality interference, comprising a water meter body, a filter cover is provided in the inner cavity of the water meter body, a filter assembly is provided above the filter cover, and an impeller is provided above the filter assembly;

[0008] The filter assembly includes a plurality of rotating parts, a plurality of filter holes are evenly opened on the rotating parts, and a cleaning assembly is provided on each of the rotating parts. The rotating parts are driven to rotate by water flow, and the impurities in the water are separated from the water by the filter holes. Meanwhile, the rotation of the rotating parts generates centrifugal force, which drives the cleaning assembly to clean the impurities on the rotating parts and the impeller, and the rotating parts drive the filter cover to rotate to flush the impurities on the filter cover.

[0009] A threaded rod is provided inside the water meter body, and a buoyancy component is provided on the threaded rod. The buoyancy of the water flow pushes the buoyancy component upward and connects with the filter component, so that the filter component drives the buoyancy component to rotate to collect and process impurities in the filter cover and the water flow.

[0010] Preferably, the filter assembly further comprises a rotating block, a plurality of the rotating members are arranged on the rotating block in a circular array, the rotating block is fixedly connected to the filter cover, and a plurality of vibrating teeth are provided on the top of the rotating member in a linear array.

[0011] Preferably, an adapting groove is provided at the bottom of the impeller, the top of the rotating block is located in the adapting groove and is adapted to each other, and the rotation of the rotating block and the impeller does not interfere with each other.

[0012] Preferably, the cleaning assembly includes a plurality of tension springs, and one end of each of the tension springs is connected to the rotating part, and a cleaning block is provided on the other end of the tension spring. The cleaning block is sleeved on the rotating part, and a spring piece is provided at one end of the cleaning block close to the vibrating tooth. During the movement, the spring piece contacts the plurality of vibrating teeth and induces vibration to perform vibration cleaning on the rotating part and the impeller.

[0013] Preferably, the buoyancy component includes a connecting block, which is arranged in the threaded groove of the threaded rod. The connecting block is fixedly connected to a circular block at one end away from the threaded rod. A plurality of cleaning brushes are arranged on the outer wall of the circular block. The ends of the plurality of cleaning brushes close to the filter cover are fitted with the outer wall of the filter cover. The filter cover is cleaned and collected by the plurality of cleaning brushes, and a plurality of trapezoidal blocks are evenly and fixedly connected to the top of the circular block.

[0014] Preferably, a trapezoidal groove adapted to a plurality of trapezoidal blocks is provided at the bottom of the filter cover, and the trapezoidal blocks are moved upward to the trapezoidal groove and enter the trapezoidal groove.

[0015] Preferably, a guide cover is provided in the inner cavity of the filter cover and above the filter assembly, and a through groove is provided at the bottom of the inner cavity of the guide cover, so that the water flow under the guide cover flows into the guide cover through the through groove, and the bottom of the impeller is rotatably connected to the bottom of the inner cavity of the guide cover.

[0016] Preferably, one end of the water meter body is located below the flow guide cover and is fixedly connected to a water inlet, and the other end of the water meter body is located above the flow guide cover and is fixedly connected to a water outlet.

[0017] Preferably, a display assembly is provided on the top of the water meter body, and the display assembly includes a gear set, and the gear set is arranged above the impeller and matched with the impeller. The gear set measures the water inflow of the water meter body through the rotation of the impeller.

[0018] Technical effects and advantages of the present invention:

[0019] 1. In the present invention, when water flows through the filter cover holes on the filter cover near the water inlet side, the suspended particles intercepted by the filter cover holes and other places will adhere to the outer wall of the filter cover and around the filter cover holes. When the filter cover holes move to the side away from the water inlet, the water flow entering from the water inlet will impact the filter cover holes of the filter cover one by one in a counterclockwise direction under the guidance of the filter cover holes, flushing down the suspended particles. At the same time, the rotation of the filter cover can satisfy the continuous interchange of the filter cover holes, avoiding the filter holes on one side from filtering too many tiny particles and losing the filtering ability due to being blocked.

[0020] 2. After water flows through the water meter body of the present invention, multiple cleaning brushes are buoyant cleaning brushes. When water flows through, the cleaning brushes generate buoyancy to drive the circular block and the connecting block to rise. The connecting block rotates and rises along the threaded groove, causing the cleaning brush to rotate and rise, cleaning the microorganisms attached to the outer wall of the filter cover to keep the filter cover unobstructed. When there is no water flow in the water meter body, the cleaning brush is not affected by buoyancy, and the rotating part is not impacted by the water flow. The cleaning brush and the filter cover continue to rotate due to inertia. When the gravity of the cleaning brush is greater than the rotational force, the trapezoidal block is separated from the trapezoidal groove, and the cleaning brush drives the connecting block to rotate and descend from the slow-rotating groove to the threaded groove, and cleans the microorganisms on the filter cover again.

[0021] 3. The present invention causes some suspended particles to adhere to the impeller when the rotating part works for a long time. When the suspended particles on the impeller exceed 2% of its own weight, the rotating part stops rotating, and the cleaning block and the spring are pulled back by the tension spring to clean the suspended particles on the rotating part, so that the rotating part returns to normal state. At the same time, the impeller is slightly vibrated by the rotating block to shake off the suspended particles on the impeller. The suspended particles are discharged from the water outlet along with the water flow, so as to ensure the normal operation of the impeller and avoid water meter counting errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a partial exploded view of the present invention.

[0024] Figure 3 It is a cross-sectional view of the interior of the water meter body of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the threaded rod and the buoyancy assembly of the present invention.

[0026] Figure 5 It is a schematic diagram of the air guide cover and the position of the air guide cover of the present invention.

[0027] Figure 6 It is an internal cross-sectional view of the filter cover and the flow guide cover of the present invention.

[0028] Figure 7 It is a schematic diagram of the connecting block and threaded rod structure of the present invention.

[0029] Figure 8 It is an internal cross-sectional view of the impeller and the guide cover of the present invention.

[0030] Fig. 9 It is a schematic diagram of the structure of the rotating part and the cleaning block of the present invention.

[0031] Fig.10 It is a schematic diagram of the half-section structure of the cleaning block of the present invention.

[0032] Fig.11 It is an enlarged view of A of the present invention.

[0033] Fig.12 It is a schematic diagram of the adapting slot structure of the present invention.

[0034] In the figure: 1. water meter body; 2. filter cover; 201. trapezoidal groove; 3. guide cover; 301. through groove; 4. impeller; 401. adapter groove; 5. filter assembly; 501. rotating part; 502. filter hole; 503. vibrating tooth; 504. rotating block; 6. cleaning assembly; 601. tension spring; 602. cleaning block; 603. spring; 7. threaded rod; 8. buoyancy assembly; 801. connecting block; 802. circular block; 803. cleaning brush; 804. trapezoidal block; 9. water inlet; 10. water outlet; 11. display assembly. DETAILED DESCRIPTION

[0035] 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.

[0036] First embodiment:

[0037] The present invention provides Figures 1 to 6 The water meter resistant to water quality interference shown comprises a water meter body 1 , in which a filter cover 2 is arranged in the inner cavity, a filter assembly 5 is arranged above the filter cover 2 , and an impeller 4 is arranged above the filter assembly 5 .

[0038] A guide cover 3 is provided in the inner cavity of the filter cover 2 and above the filter assembly 5. A through groove 301 is provided at the bottom of the inner cavity of the guide cover 3, so that the water flow below the guide cover 3 flows into the guide cover 3 through the through groove 301, and the bottom of the impeller 4 is rotatably connected to the bottom of the inner cavity of the guide cover 3.

[0039] One end of the water meter body 1 and located below the flow guide cover 3 is fixedly connected to a water inlet 9 , and the other end of the water meter body 1 and located above the flow guide cover 3 is fixedly connected to a water outlet 10 .

[0040] The water flows into the inner cavity of the water meter body 1 along the water inlet 9. The filter cover 2 is provided with a plurality of filter cover holes. The water flows along the inner cavity of the water meter body 1 into the filter cover 2 in the inner cavity of the water meter body 1. In the process of the water flowing into the filter cover 2, the suspended particles carried by the water flow will be intercepted by the plurality of filter cover holes and retained on the filter cover 2 or in the plurality of filter cover holes, and then the primary filtration of the water is realized through the plurality of filter cover holes. Then the water flow after the primary filtration enters the inner cavity of the filter cover 2 through the plurality of filter cover holes. The through groove 301 is set to be obliquely upward, that is, the water flow passing through the through groove 301 is in an obliquely upward state. Then the water flow will enter the inner cavity of the guide cover 3 under the guidance of the through groove 301. The obliquely upward water flow causes the impeller 4 to rotate by impact, and then the impeller 4 rotates under the support of the guide cover 3, driving the water flow after the impeller 4 rotates to flow into the inner cavity of the water outlet 10, and then flows into the water use area.

[0041] A display assembly 11 is provided on the top of the water meter body 1. The display assembly 11 includes a gear set. The gear set is arranged above the impeller 4 and is adapted to the impeller 4. The gear set measures the water inflow of the water meter body 1 through the rotation of the impeller 4. After the water flow drives the impeller 4 to rotate, the gear set arranged above the impeller 4 records the number of rotations of the impeller 4, and the indication inside the gear set changes, thereby obtaining the water flow rate flowing into the water meter body 1.

[0042] The filter assembly 5 further comprises a rotating block 504 , on which a plurality of rotating members 501 are arranged in a circular array. The rotating block 504 is fixedly connected to the filter cover 2 , and a plurality of vibrating teeth 503 are provided in a linear array on the top of the rotating members 501 .

[0043] Firstly, a plurality of filter cover holes are provided on the filter cover 2, and the filter cover holes on the filter cover 2 are all designed to be tilted in the counterclockwise direction. When water flows into the water meter body 1, the water flowing through the filter cover 2 will be guided by the filter cover holes, making the water flow present a counter-current effect, and impact the plurality of rotating parts 501 close to the counter-clockwise side of the water flow. The plurality of rotating parts 501 on the other side are not impacted by the water flow or are impacted by a force smaller than that of the plurality of rotating parts 501 on the impacted side, so that the plurality of rotating parts 501 on the non-impacted side rotate toward the impacted side, that is, the plurality of rotating parts 501 all rotate counterclockwise. Over time, the water The flow will impact and rotate each rotating member 501 one by one to ensure that the rotating member 501 is always in a counterclockwise rotation state. Multiple rotating members 501 are fixedly connected to the rotating block 504, and then the multiple rotating members 501 will drive the rotating block 504 to rotate counterclockwise with the central axis of the rotating block 504 as the center. The rotation of the rotating block 504 drives the fixedly connected filter cover 2 to rotate together. Since the filter cover 2 close to the water inlet 9 side is first in contact with the water flow, the suspended particles carried by the water flow will first be intercepted by the filter cover holes of the filter cover 2 on this side, and then relatively more suspended particles are filtered out here.

[0044] Secondly, when the water flows through the multiple filter cover holes on the filter cover 2 near the water inlet 9, the suspended particles intercepted by the filter cover holes of the filter cover 2 or the suspended particles intercepted elsewhere cause the suspended particles to adhere to the outer wall of the filter cover 2 and around the filter cover holes. When the filter cover holes on the filter cover 2 move to the side away from the water inlet 9, the water flow entering from the water inlet 9 will be guided by the filter cover holes, and part of it will impact the filter cover holes of the filter cover 2 one by one in a counterclockwise direction, and wash down the suspended particles carried on the filter cover 2. On the other hand, the rotation of the filter cover 2 can also satisfy the continuous interchange of the filter cover holes on the filter cover 2 for filtration, thereby avoiding the situation where too many tiny particles are filtered on the filter holes on one side of the filter cover 2, resulting in the filter holes of the filter cover 2 on this side being blocked and losing the filtering ability.

[0045] Second embodiment:

[0046] Based on the above scheme, since the water outlet 10 of the water meter is higher than the water inlet 9, when the water inlet stops taking in water, part of the water cannot flow out through the water outlet and remains in the water meter body 1. When the water meter body 1 is in an empty state for a long time, the residual water and impurities in the water meter body 1 will breed microorganisms after long-term contact with the air, causing the filter cover 2 to be blocked, thereby causing the water flow entering the filter cover 2 to decrease, affecting the counting effect.

[0047] like Figure 4 and Figure 7As shown, in this embodiment, a threaded rod 7 is provided inside the water meter body 1, and a buoyancy component 8 is provided on the threaded rod 7. The buoyancy of the water flow pushes the buoyancy component 8 to move upward and connect with the filter component 5, so that the filter component 5 drives the buoyancy component 8 to rotate to collect and process impurities in the filter cover 2 and the water flow.

[0048] When water flows into the water meter body 1, the water flow will push the buoyancy component 8 to rise, so that the buoyancy component 8 rotates and rises along the trajectory of the threaded groove in the threaded rod 7. During the rising process, the buoyancy component 8 will slowly clean the impurities on the outer surface of the filter cover 2. When there is no water flowing into the water meter body 1, the buoyancy component 8 is no longer affected by the buoyancy of the water flow, because the buoyancy component 8 itself can rotate and descend along the threaded rod 7 due to the action of gravity. During the descent, the buoyancy component 8 cleans and collects the microorganisms on the filter cover 2 again.

[0049] More specifically, the buoyancy assembly 8 includes a connecting block 801, which is arranged in the threaded groove of the threaded rod 7. The end of the connecting block 801 away from the threaded rod 7 is fixedly connected to a circular block 802, and a plurality of cleaning brushes 803 are provided on the outer wall of the circular block 802. The ends of the plurality of cleaning brushes 803 close to the filter cover 2 are fitted with the outer wall of the filter cover 2. The filter cover 2 is cleaned and collected by the plurality of cleaning brushes 803, and a plurality of trapezoidal blocks 804 are evenly and fixedly connected to the top of the circular block 802.

[0050] In addition, a trapezoidal groove 201 adapted to the plurality of trapezoidal blocks 804 is opened at the bottom of the filter cover 2 , and the trapezoidal blocks 804 move upward to the trapezoidal groove 201 and enter into the trapezoidal groove 201 .

[0051] First, after water flows into the water meter body 1, the multiple cleaning brushes 803 are designed to have buoyancy. (Specifically, they can be made of relatively light plastic or foam material, so that when the water flows, the water will produce an upward pressure difference on the multiple cleaning brushes 803, thereby generating buoyancy for the multiple cleaning brushes 803, and the multiple cleaning brushes 803 can move downward and return to their initial positions according to their own gravity when not affected by the buoyancy of the water flow.) When the water flows through, the multiple cleaning brushes 803 will produce a buoyancy effect and rise, and then the multiple cleaning brushes 803 This will drive the circular block 802 and the connecting block 801 at one end to be in an ascending state. Since the connecting block 801 is set in the threaded groove on the threaded rod 7, the connecting block 801 will rotate and rise along the trajectory of the threaded groove on the threaded rod 7, thereby causing the multiple cleaning brushes 803 to be in a rotating and ascending state. Since one end of the multiple cleaning brushes 803 is in contact with the outer wall of the filter cover 2, the multiple cleaning brushes 803 will make a circular upward motion around the outer wall of the filter cover 2 during the ascending process, and clean and collect the microorganisms attached to the filter cover 2, so that the filter cover 2 as a whole is in a smooth state.

[0052] Secondly, a slow-rotation groove is provided at the top of the threaded rod 7 and above the threaded groove. When the multiple cleaning brushes 803 rise with the buoyancy of the water, the multiple cleaning brushes 803 drive the connecting block 801 to rise, so that the connecting block 801 rotates along the threaded groove and enters the slow-rotation groove on the threaded rod 7. At this moment, the circular block 802 is also located in the slow-rotation groove. Then, the multiple cleaning brushes 803 will continue to rise under the action of buoyancy. During the rising process, the multiple trapezoidal blocks 804 will enter the multiple trapezoidal grooves 201, and there are two situations: one is direct entry. After the multiple trapezoidal blocks 804 enter the slow-rotation groove, the multiple trapezoidal blocks 804 will continue to rise driven by the buoyancy of the multiple cleaning brushes 803, and the multiple trapezoidal blocks 804 will be stuck in the multiple trapezoidal grooves 201 after rising again. Then, the multiple trapezoidal blocks 804 will follow the multiple trapezoidal grooves 201 on the filter cover 2 with the cooperation of each other. The filter cover 2 rotates together. In another case, during the rising process of the multiple trapezoidal blocks 804, the multiple trapezoidal blocks 804 at this time will not be directly stuck in the multiple trapezoidal grooves 201. At this time, the multiple trapezoidal blocks 804 will first rest against the bottom of the filter cover 2, and during the rotation of the filter cover 2, the positions of the multiple trapezoidal grooves 201 will be continuously changed. When the multiple trapezoidal grooves 201 move above the multiple trapezoidal blocks 804, the multiple trapezoidal blocks 804 at this time will no longer conflict with the bottom of the filter cover 2. The rising multiple trapezoidal blocks 804 will enter the multiple trapezoidal grooves 201 and rotate with the filter cover 2, and the multiple trapezoidal blocks 804 will enable the multiple cleaning brushes 803 to rotate synchronously with the filter cover 2, so that during the rotation of the filter cover 2, the multiple cleaning brushes 803 will not interfere with the water flow entering the filter cover 2 around the filter cover 2, thereby avoiding the unstable situation of the water flow entering the filter cover 2.

[0053] Again, when there is no water flow in the water meter body 1, the multiple cleaning brushes 803 are no longer affected by the buoyancy of the water flow, and the multiple rotating parts 501 are no longer impacted by the water flow. The multiple cleaning brushes 803 and the filter cover 2 that can rotate will continue to rotate due to their own inertia. When the gravity force on the multiple cleaning brushes 803 is greater than the rotation force, the multiple cleaning brushes 803 will drive each trapezoidal block 804 to separate from each trapezoidal groove 201. The multiple cleaning brushes 803 that rotate and descend will bring the connecting block 801 from the slow-rotating groove to the thread groove. The connecting block 801 will rotate and descend along the trajectory of the thread groove. The connecting block 801 will also drive the multiple cleaning brushes 803 to achieve the effect of rotating and descending. The multiple cleaning brushes 803 that rotate and descend will make a circular downward motion around the filter cover 2, and then the multiple cleaning brushes 803 will clean and collect the microorganisms on the filter cover 2 again.

[0054] Third embodiment:

[0055] During use, the water meter measures the amount of water flowing through based on the rotation of the impeller 4. The rotation of the impeller 4 is caused by the continuous impact of the water flow. The tiny suspended particles contained in the water flow that has passed through the first-level filtration of the filter cover 2 cannot be completely filtered out. These tiny suspended particles will follow the water flow and contact with the impeller 4 and be adsorbed on the impeller 4. After a long period of accumulation, they gradually form lumps on the impeller 4, changing the weight distribution of the impeller 4 and hindering the normal rotation of the impeller 4, thereby affecting the stability and accuracy of its operation.

[0056] like Fig. 9 and Fig.11 As shown, in this embodiment, the filter assembly 5 includes a plurality of rotating members 501, and filter holes 502 are evenly opened on the rotating members 501. A cleaning assembly 6 is provided on each rotating member 501. The rotating members 501 are driven to rotate by the flow of water, and the filter holes 502 are used to separate impurities in the water from the water. At the same time, the rotating members 501 rotate to generate centrifugal force, which drives the cleaning assembly 6 to clean the impurities on the rotating members 501 and the impeller 4, and the rotating members 501 drive the filter cover 2 to rotate to flush the impurities on the filter cover 2.

[0057] The cleaning assembly 6 includes multiple tension springs 601, and one end of each tension spring 601 is connected to the rotating part 501, and a cleaning block 602 is provided on the other end of the tension spring 601. The cleaning block 602 is sleeved on the rotating part 501, and an elastic piece 603 is provided at one end of the cleaning block 602 close to the vibrating tooth 503. The elastic piece 603 contacts the multiple vibrating teeth 503 during the movement and induces vibration to vibrate and clean the rotating part 501 and the impeller 4.

[0058] First, multiple rotating parts 501 rotate under the impact of water flow. Since multiple rotating parts 501 are provided with multiple filtering holes 502, while multiple rotating parts 501 rotate, tiny suspended particles in water are filtered through the filtering holes 502, and part of the water flow that has passed the primary filtration is filtered again, and some of the tiny suspended particles can remain on the rotating parts 501. The water flow that has passed the secondary filtration will be pushed by the subsequent water flow to flow into the through groove 301, and part of the water flow that has not been filtered will also flow into the through groove 301, and then it will impact the impeller 4 under the guidance of the through groove 301, so that part of the water flow after the primary filtration is filtered again through the filtering holes 502, thereby reducing the amount of tiny particulate matter in the water flow that impacts the impeller 4 and the amount of adhesion to the impeller 4.

[0059] Secondly, as the multiple rotating parts 501 rotate under the impact of the water flow, each cleaning block 602 mounted on the rotating part 501 will be subjected to the centrifugal force. Since one side of the tension spring 601 is connected to the rotating part 501, the other end of the tension spring 601 will be pulled by the cleaning block 602 and become longer, and the elastic potential energy of the tension spring 601 will also increase accordingly. The movement of the cleaning block 602 cleans the tiny suspended particles on the rotating part 501. The cleaning block 602 is fixedly connected to the spring piece 603. The movement of the cleaning block 602 drives the spring piece 603 to move along the rotating part 501. During the movement, the spring piece 603 contacts and collides with the multiple vibrating teeth 503 provided on the rotating part 501 one by one, thereby causing the rotating part 501 to produce a tiny vibration effect, thereby shaking off the tiny suspended particles on the rotating part 501.

[0060] Specifically, when the rotating part 501 works for a long time, most of the suspended tiny particles will be filtered out by the rotating part 501, and a small part of the suspended tiny particles will enter through the through groove 301 and adhere to the impeller 4. When there are more suspended tiny particles attached to the impeller 4 and it affects the normal rotation speed of the impeller 4, it will trigger the following technical effect and set an assumed value, such as: when the impeller 4 is in normal working state, the suspended tiny particles attached to the impeller 4 are 0% to 2% of its own weight; when multiple rotating parts 501 are in normal rotation state, the amount of suspended tiny particles attached to the multiple rotating parts 501 is 0% to 6% of its own weight.

[0061] When the suspended micro-particles attached to the impeller 4 exceed 2% of its own weight, the rotation speed of the impeller 4 will be lower than the normal value, and the amount of suspended micro-particles attached to the multiple rotating parts 501 will be greater than 6% of their own weight. At this time, the rotating part 501 will stop rotating, and the cleaning block 602 mounted on the rotating part 501 will no longer be affected by the centrifugal force of the rotating part 501. The multiple tension springs 601 connected to each cleaning block 602 will pull each cleaning block 602 to restore its initial position due to elastic potential energy. During the movement of the cleaning block 602, the cleaning block 602 will clean the suspended micro-particles attached to the rotating part 501, and the cleaning block 602 will also drive the spring piece 603 to move, and contact and collide with the multiple vibrating teeth 503 one by one again, so that the rotating part 501 produces a small vibration effect, and the suspended micro-particles that hinder the rotation of the rotating part 501 will be shaken off. At this time, the impeller 4 is also in a state of slight vibration, and the tiny particle suspension will not be attached to the vibrating impeller 4. Subsequently, the tiny particle suspension shaken off by the impeller 4 and each rotating member 501 is discharged from the water outlet 10 along with the direction of the water flow, thereby ensuring the normal working state of the impeller 4 and avoiding errors in the water meter counting.

[0062] It should be noted that when the amount of suspended micro-particles attached to the multiple rotating parts 501 is less than 6% of the amount of suspended micro-particles themselves, the suspended micro-particles attached to the multiple rotating parts 501 can also reduce the rotation rate of the multiple rotating parts 501, and the corresponding centrifugal force on the cleaning block 602 will also become smaller. The elastic properties of the multiple tension springs 601 will pull the cleaning block 602 and the spring piece 603 to move toward the initial position, but the cleaning block 602 will not completely return to the initial position. Moreover, the elastic properties of the multiple tension springs 601 are much smaller than the centrifugal force of the rotating part 501 on the cleaning block 602. The pulled cleaning block 602 and the spring piece 603 can also clean and shake off the suspended micro-particles attached to the rotating part 501.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water meter resistant to water quality interference, comprising a water meter body, wherein a filter cover is provided in the inner cavity of the water meter body, and characterized in that: A filter assembly is provided above the filter cover, and an impeller is provided above the filter assembly; The filter assembly includes a plurality of rotating parts, each of which is evenly provided with a plurality of filter holes. A cleaning assembly is provided on each of the rotating parts. The rotating parts are driven to rotate by water flow, and impurities in the water are separated from the water by the filter holes. Meanwhile, the rotation of the rotating parts generates centrifugal force, which drives the cleaning assembly to clean the impurities on the rotating parts and the impeller, and the rotating parts drive the filter cover to rotate to flush the impurities on the filter cover.

2. The water meter resistant to water quality interference according to claim 1, characterized in that: The filter assembly also includes a rotating block, a plurality of rotating members are arranged on the rotating block in a circular array, the rotating block is fixedly connected to the filter cover, and a plurality of vibrating teeth are provided on the top of the rotating member in a linear array.

3. The water meter resistant to water quality interference according to claim 2, characterized in that: An adapting groove is provided at the bottom of the impeller, and the top of the rotating block is located in the adapting groove and is adapted to each other, and the rotation of the rotating block and the impeller does not interfere with each other.

4. The water meter resistant to water quality interference according to claim 1, characterized in that: The cleaning assembly includes multiple tension springs, and one end of each tension spring is connected to the rotating part, and the other end of the tension spring is provided with a cleaning block, and the cleaning block is sleeved on the rotating part. The end of the cleaning block close to the vibrating tooth is provided with a spring sheet, and the spring sheet contacts with multiple vibrating teeth during movement and induces vibration to perform vibration cleaning on the rotating part and the impeller.

5. The water meter resistant to water quality interference according to claim 1, characterized in that: A threaded rod is provided inside the water meter body, and a buoyancy component is provided on the threaded rod. The buoyancy of the water flow pushes the buoyancy component upward and connects with the filter component, so that the filter component drives the buoyancy component to rotate to collect and process impurities in the filter cover and the water flow.

6. The water meter resistant to water quality interference according to claim 1, characterized in that: The buoyancy component includes a connecting block, which is arranged in a threaded groove of a threaded rod. A circular block is fixedly connected to one end of the connecting block away from the threaded rod. A plurality of cleaning brushes are arranged on the outer wall of the circular block. An end of the plurality of cleaning brushes close to the filter cover is fitted with the outer wall of the filter cover. The filter cover is cleaned and collected by the plurality of cleaning brushes. A plurality of trapezoidal blocks are evenly and fixedly connected to the top of the circular block.

7. The water meter resistant to water quality interference according to claim 1, characterized in that: A trapezoidal groove adapted to a plurality of trapezoidal blocks is provided at the bottom of the filter cover, and the trapezoidal blocks move upward to the trapezoidal groove and enter into the trapezoidal groove.

8. The water meter resistant to water quality interference according to claim 1, characterized in that: A guide cover is provided in the inner cavity of the filter cover and above the filter assembly. A through groove is provided at the bottom of the inner cavity of the guide cover, so that the water flow below the guide cover flows into the guide cover through the through groove, and the bottom of the impeller is rotatably connected to the bottom of the inner cavity of the guide cover.

9. The water meter resistant to water quality interference according to claim 8, characterized in that: One end of the water meter body is located below the flow guide cover and is fixedly connected to a water inlet, and the other end of the water meter body is located above the flow guide cover and is fixedly connected to a water outlet.

10. The water meter resistant to water quality interference according to claim 1, characterized in that: A display assembly is provided on the top of the water meter body. The display assembly includes a gear set. The gear set is arranged above the impeller and is matched with the impeller. The gear set measures the water inflow of the water meter body through the rotation of the impeller.

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