Vertical volumetric water meter

Abstract

The invention relates to the technical field of water meters, in particular to a vertical volumetric water meter which comprises a connecting shell, a metering shell and a filtering assembly, the filtering assembly comprises a first filtering cylinder and a filtering cylinder assembly, the filtering cylinder assembly is located on the outer side of the first filtering cylinder assembly, the first filtering cylinder is provided with first filtering holes, and the filtering cylinder assembly comprises second filtering holes. The filter cartridge assembly comprises a first half filter cartridge and a second half filter cartridge, and the first half filter cartridge and the second half filter cartridge are both arranged on the side, close to the connecting shell, of the metering shell in a sliding mode. The first half filter cylinder and the second half filter cylinder are separated, so that blocked silt can flow conveniently, and the advantage of a silt-proof structure is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water meters, more particularly to a vertical volumetric water meter. BACKGROUND

[0002] A volumetric water meter is a kind of instrument that realizes flow accumulation by measuring the fixed volume of water in a closed cavity. Vertical means that the water meter shell is perpendicular to the ground during installation.

[0003] Patent document (CN115468618B) discloses a volumetric water meter, which comprises a metering assembly, the metering assembly comprising a metering shell, a sliding swing piston, a baffle, an output shaft and an upper seat body, the metering shell having a water inlet, an annular cavity and a vertical cylinder, the vertical cylinder having a transmission cavity, the annular cavity being coaxially arranged with the transmission cavity, and the annular cavity being located outside the transmission cavity, a convex column being provided at the center of the transmission cavity, the baffle separating one side of the annular cavity, the sliding swing piston sliding along the baffle while rotating circumferentially around the convex column, and the sliding swing piston being inscribed in the vertical cylinder, and the sliding swing piston driving the output shaft to rotate circumferentially, the upper seat body being connected with the metering shell and closing the annular cavity, the output shaft being rotatably arranged on the upper seat body and extending into the transmission cavity at one end, the output shaft extending into the transmission cavity having an extension at one end, the sliding swing piston having a transmission column at the center, one end of the transmission column abutting against the side wall of the vertical cylinder, and the other end of the transmission column abutting against the extension, the upper seat body having a water outlet. It should be noted that water flows from the water inlet into the sliding swing piston and causes the transmission column of the sliding swing piston to rotate circumferentially around the convex column, and at the same time, since the baffle extends into the profiled notch of the sliding swing piston, the sliding swing piston also slides along the baffle, thereby realizing self-rotation of the swing piston at a certain angle. However, since there is mud in the water or the mud is provided, and since the above-mentioned volumetric water meter does not have a mud prevention structure, when the mud enters the sliding swing piston, it is easy to aggravate the wear of the top surface and the bottom surface of the sliding swing piston, and when the top surface of the sliding swing piston is worn, part of the water flow overflows from the top surface of the sliding swing piston and directly flows to the water outlet, reducing the measurement accuracy.

[0004] Therefore, there is a need to provide a vertical volumetric water meter with a mud prevention structure. SUMMARY

[0005] The main purpose of the present application is to provide a vertical volumetric water meter, wherein the vertical volumetric water meter includes a case assembly, a metering assembly and a filter assembly, the case assembly includes a lower case and an upper case, the lower case has a water inlet channel and a water outlet channel, one end of the water inlet channel and the water outlet channel are arranged vertically and the central axes coincide, the upper case is connected to the lower case, the upper case has a through cavity; the metering assembly is arranged in the through cavity, the metering assembly includes a connecting case, a metering case, a sliding piston, a baffle and an output shaft, the connecting case has an inflow channel, the metering case has a water inlet, an annular cavity and a vertical cylinder, the vertical cylinder has a transmission cavity, the annular cavity is coaxially arranged with the transmission cavity, and the annular cavity is located on the outside of the transmission cavity, a convex column is provided in the center of the transmission cavity, the baffle separates one side of the annular cavity, the sliding piston moves along the The filter assembly is located at one end of the inflow channel close to the metering shell, and the filter assembly includes a first filter cartridge and a filter cartridge assembly, and the filter cartridge assembly is located on the outside of the first filter cartridge assembly, the first filter cartridge has a first filter hole, the filter cartridge assembly includes a second filter hole, the first filter hole and the second filter hole are staggered and have an intersection, the filter cartridge assembly includes a first half filter cartridge and a second half filter cartridge, the first half filter cartridge and the second half filter cartridge are both slidably arranged on one side of the metering shell close to the connecting shell, under normal circumstances, the sediment is filtered through the intersection of the first filter hole and the second filter hole, and when the blockage is serious, the first half filter cartridge and the second half filter cartridge are separated to facilitate the flow of blocked sediment, and have the advantage of having a sediment-proof structure.

[0006] Another object of the present application is to provide a vertical volumetric water meter, wherein the vertical volumetric water meter also includes a cleaning assembly, the cleaning assembly including a rotating shaft, a cleaning piece, a second spring and a swing rod, the rotating shaft is rotatably mounted on the metering shell, the side wall of the rotating shaft has a guide column, the cleaning piece is slidably arranged on the guide column, the two ends of the second spring are respectively connected to the guide column and the cleaning piece, the cleaning piece has a limiting groove, one end of the swing rod is rotatably connected to the rotating shaft, and the other end of the swing rod has a limiting protrusion, the limiting protrusion extends into or out of the limiting groove, so that the cleaning piece is in different states when the rotating shaft is at medium, high and low speeds.

[0007] In order to achieve at least one of the above-mentioned invention objectives, the present application provides a vertical volumetric water meter, wherein the vertical volumetric water meter comprises: A watch case assembly comprises a lower watch case and an upper watch case, the lower watch case has a water inlet channel and a water outlet channel, one end of the water inlet channel and the water outlet channel is vertically arranged and the central axes coincide, the upper watch case is connected with the lower watch case, the upper watch case has a through cavity; A metering assembly is arranged in the through cavity, the metering assembly comprises a connecting case, a metering case, a swing piston, a baffle and an output shaft, the connecting case has an inflow channel, the metering case has a water inlet, an annular cavity and a vertical cylinder, the vertical cylinder has a transmission cavity, the annular cavity is coaxially arranged with the transmission cavity and is located outside the transmission cavity, a convex column is arranged in the center of the transmission cavity, the baffle separates one side of the annular cavity, the swing piston slides along the baffle while rotating circumferentially around the convex column, the swing piston is inscribed in the vertical cylinder, and the swing piston drives the output shaft to rotate circumferentially. A filtering assembly is arranged at one end of the inflow channel close to the metering case, the filtering assembly comprises a first filter cylinder and a filter cylinder assembly, the filter cylinder assembly is located outside the first filter cylinder assembly, the first filter cylinder has a first filter hole, the filter cylinder assembly comprises a second filter hole, the first filter hole and the second filter hole are arranged in a staggered manner and have an intersection, the filter cylinder assembly comprises a first half filter cylinder and a second half filter cylinder, the first half filter cylinder and the second half filter cylinder are both slidingly arranged at one side of the metering case close to the connecting case.

[0008] In one or more embodiments of the present application, the first filter cylinder is fixedly arranged on the metering case, one end of the metering case close to the connecting case further has two guide channels, the first half filter cylinder and the second half filter cylinder are respectively slidingly arranged in the two guide channels, the two guide channels are in communication with the inflow channel, the filtering assembly further comprises two first springs, one end of each first spring is connected with the first half filter cylinder or the second half filter cylinder, and the other end of the first spring is connected with the wall surface of the corresponding guide channel.

[0009] In one or more embodiments of the present application, the vertical positive displacement water meter further comprises a cleaning assembly, the cleaning assembly comprises a rotating shaft, a cleaning piece, a second spring and a swing rod, the rotating shaft is rotatably installed on the metering case, the side wall of the rotating shaft has a guide column, the cleaning piece is slidingly arranged on the guide column, the two ends of the second spring are respectively connected with the guide column and the cleaning piece, the cleaning piece has a limiting groove, one end of the swing rod is rotatably connected with the rotating shaft, the other end of the swing rod has a limiting protrusion, and the limiting protrusion extends into or out of the limiting groove.

[0010] In one or more embodiments of the present application, the cleaning assembly further comprises a plurality of screw blade, the screw blade is arranged in an annular array on the rotating shaft.

[0011] In one or more embodiments of the present application, the cleaning assembly further comprises a first waterproof shell and a second waterproof shell, the first waterproof shell has a receiving hole through which the swing rod passes, the second waterproof shell has a groove and is slidably sleeved on the first waterproof shell, and the second waterproof shell is connected with the cleaning piece, one side of the receiving hole has a notch groove, one end of the cleaning piece close to the rotating shaft has a cover plate which is slidably arranged in the notch groove, and the cover plate covers the notch of the groove when the cleaning piece slides.

[0012] In one or more embodiments of the present application, the top of the swing piston has a lifting annular groove, and the metering assembly further comprises a floating ring which is liftably arranged in the lifting annular groove, and the top of the floating ring is flush with the top surface of the swing piston.

[0013] In one or more embodiments of the present application, the bottom of the lifting annular groove has a plurality of water inlet notches.

[0014] In one or more embodiments of the present application, the metering assembly further comprises an upper seat body which is connected with the metering shell and closes the annular cavity, the output shaft is rotatably arranged on the upper seat body and extends into the transmission cavity at one end, the output shaft has an extension at the end extending into the transmission cavity, the center of the swing piston has a transmission column, one end of the transmission column abuts against the side wall of the vertical cylinder, and the other end of the transmission column abuts against the extension, and the upper seat body has a water outlet.

[0015] In one or more embodiments of the present application, the vertical positive displacement water meter further comprises a screen cage, the mesh aperture of the screen cage is smaller than the radial dimension of the intersection region of the first filter hole and the second filter hole, and the screen cage has a receiving cavity and a plurality of necked portions.

[0016] In the present application, the vertical positive displacement water meter comprises a connecting shell, a metering shell and a filtering assembly, the filtering assembly comprises a first filter cylinder and a filter cylinder assembly, the filter cylinder assembly is located outside the first filter cylinder assembly, the first filter cylinder has a first filter hole, the filter cylinder assembly comprises a second filter hole, the first filter hole and the second filter hole are arranged in a staggered manner and have an intersection, the filter cylinder assembly comprises a first half filter cylinder and a second half filter cylinder, the first half filter cylinder and the second half filter cylinder are both slidably arranged on one side of the metering shell close to the connecting shell, and under normal circumstances, the intersection between the first filter hole and the second filter hole filters the silt, when the silt is seriously blocked, the first half filter cylinder and the second half filter cylinder are separated to facilitate the flow of the blocked silt, and the vertical positive displacement water meter has the advantage of having a silt prevention structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] These and / or other aspects and advantages of the present application will become more apparent and more fully understood from the following detailed description, taken in conjunction with the accompanying drawings, in which: Figure 1 FIG. 1 illustrates a cross-sectional view of a vertical volumetric water meter according to an embodiment of the present application; Figure 2 FIG. 2 illustrates a partial structural view of a vertical volumetric water meter according to an embodiment of the present application; Figure 3 FIG. 3 illustrates a partial enlarged view of C of FIG. 2; Figure 1 Figure 4 FIG. 5 illustrates a structural view of a state in which the first filter hole and the second filter hole partially overlap; Figure 5 FIG. 6 illustrates a structural view of a state of the first filter cylinder and the filter cylinder assembly according to an embodiment of the present application; Figure 6 FIG. 7 illustrates a partial enlarged view of D of FIG. 6; Figure 3 Figure 7 FIG. 8 illustrates a partial enlarged view of E of FIG. 7; Figure 3 Figure 8 FIG. 9 illustrates a structural view of the first waterproof case according to an embodiment of the present application. DETAILED DESCRIPTION

[0018] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but are merely used to enable a clear and consistent understanding of the application. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustration purpose only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

[0019] It is to be understood that the term "one" is to be interpreted as "at least one" or "one or more" and, as such, a plurality of elements, apparatuses, components, etc., can be present. It is also to be understood that, unless explicitly stated to the contrary, "one", "an", and "the" can refer to alternatives "one or more" or "at least one".

[0020] Although numerals such as "first", "second", etc. will be used to describe various components, the components are not limited by the numerals. The numerals are used only to distinguish one component from another component. For example, a first component can be referred to as a second component, and likewise, a second component can also be referred to as a first component without departing from the teachings of the present inventive concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] ​​​The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "has," when used in this specification, specify the presence of stated features, numbers, steps, operations, components, elements, or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or combinations thereof.

[0022] a vertical volumetric water meter, Referring to Figures 1 to 8 According to a preferred embodiment of the present application, a vertical volumetric water meter comprises a meter housing assembly 10 and a metering assembly 20.

[0023] Specifically, as shown in Figure 1 and Figure 2 the meter housing assembly 10 comprises a lower meter housing 101 having a water inlet passage 1011 and a water outlet passage 1012, one end of which is vertically arranged and the central axes of which coincide, and an upper meter housing 102 connected with the lower meter housing 101, the upper meter housing 102 having a through cavity 1021. In the embodiment, the outer side wall of one end of the upper meter housing 102 extends into the water outlet passage 1012 and is threadedly connected with the lower meter housing 101, the inner side of which has a first flow-through hole 1022 and a second flow-through hole 1023 located outside the first flow-through hole 1022, when the upper meter housing 102 is threadedly connected with the lower meter housing 101, the water inlet passage 1011 extends to the first flow-through hole 1022 near one end of the upper meter housing 102, and the water inlet passage 1011 is in communication with the first flow-through hole 1022, in addition, the two ends of the second flow-through hole 1023 are in communication with the through cavity 1021 and the water outlet passage 1012, respectively.

[0024] In addition, as shown in Figure 1 and Figure 2As shown, the metering assembly 20 is arranged in the through cavity 1021, and comprises a connecting shell 201, a metering shell 202, a sliding swing piston 203, a baffle 204 and an output shaft 205. The connecting shell 201 has an inflow passage 2011. The metering shell 202 has a water inlet (not labeled in the figure), an annular cavity 2022 and a vertical cylinder 2023. The vertical cylinder 2023 has a transmission cavity 2024. The annular cavity 2022 is coaxially arranged with the transmission cavity 2024, and is located outside the transmission cavity 2024. A convex column 20241 is arranged in the center of the transmission cavity 2024. The baffle 204 separates one side of the annular cavity 2022. The sliding swing piston 203 slides along the baffle 204 while rotating in the circumferential direction around the convex column 20241. The sliding swing piston 203 is inscribed in the vertical cylinder 2023, and drives the output shaft 205 to rotate in the circumferential direction. The end of the connecting shell 201 away from the metering shell 202 extends into the other end of the first flow-through hole 1022, so that the water inlet passage 1011 communicates with the inflow passage 2011 through the first flow-through hole 1022.

[0025] In addition, as shown in Figure 1 and Figure 2 The metering assembly 20 further comprises an upper seat body 206. The upper seat body 206 is connected with the metering shell 202 and seals the annular cavity 2022. The output shaft 205 is rotatably arranged on the upper seat body 206, and extends into the transmission cavity 2024 at one end. The end of the output shaft 205 extending into the transmission cavity 2024 has an extension 2051. The center of the sliding swing piston 203 has a transmission column 2031. One end of the transmission column 2031 abuts against the side wall of the vertical cylinder 2023, and the other end of the transmission column 2031 abuts against the extension 2051. The upper seat body 206 has a water outlet, which communicates with the through cavity 1021.

[0026] In addition, as shown in Figure 1 The vertical volumetric water meter further comprises a counting structure 30 arranged at the end of the upper shell 102 away from the lower shell 101.

[0027] It is noted that after the external water source flows into the water inlet channel 1011, it flows into the inflow channel 2011 along the first flow-through hole 1022, and flows into the sliding swing piston 203 from the water inlet of the metering shell 202. It is noted that the sliding swing piston 203 is in a cylindrical shape and has a cavity with a predetermined capacity. As the water flow gradually fills the cavity of the sliding swing piston 203, the sliding swing piston 203 slides along the baffle 204, and the transmission column 2031 on the sliding swing piston 203 rotates circumferentially along the convex column 20241. Until the sliding swing piston 203 moves to the water outlet on the upper seat body 206, the water source flows out of the water outlet and into the through cavity 1021. After passing through the second flow-through hole 1023, it is discharged along the water outlet channel 1012. During the circumferential rotation of the transmission column 2031 relative to the convex column 20241, the other end of the transmission column 2031 pushes the extension 2051 and drives the output shaft 205 to rotate circumferentially. Because the output shaft 205 is provided with a magnet that cooperates with the counting structure 30, the rotation of the output shaft 205 will drive the shaft body on the counting structure 30 to rotate and make the counting disc change, realizing the reading.

[0028] Further, in order to reduce the flow of sediment into the cavity of the sliding swing piston 203, as shown in Figure 1 、 Figure 3 、 Figure 4 and Figure 5 , the vertical volumetric water meter further comprises a filter assembly 40, which is arranged at one end of the inflow channel 2011 close to the metering shell 202. The filter assembly 40 comprises a first filter cylinder 401 and a filter cylinder assembly. The filter cylinder assembly is located outside the first filter cylinder 401 assembly. The first filter cylinder 401 has a first filter hole. The filter cylinder assembly comprises a second filter hole. The first filter hole and the second filter hole are arranged in a staggered manner and have an intersection. The filter cylinder assembly comprises a first half filter cylinder 402 and a second half filter cylinder 403. The first half filter cylinder 402 and the second half filter cylinder 403 are both slidingly arranged on one side of the metering shell 202 close to the connecting shell 201.

[0029] Need to explain, the first filter hole and the second filter hole aperture is greater than the predetermined size of the sand particle size, and when the first half filter cylinder 402 and the second half filter cylinder 403 are moving towards and splicing to form a cylinder and set outside the first filter cylinder 401, the first filter hole and the second filter hole are misaligned and there is a part of the intersection, and the size of this intersection area is smaller than the predetermined size of the sand particle size. It should be pointed out that the first half filter cylinder 402 and the second half filter cylinder 403 are normally attached to the first filter cylinder 401, so that the filter assembly 40 can intercept most of the sand particles. However, after long-term use, the first filter hole and the second filter hole intersection area hole is blocked, so that the water flow will be difficult to flow into the sliding piston 203 and make it work, affecting the normal use of the water meter, and in this application, by setting the filter assembly to the sliding first half filter cylinder 402 and the second half filter cylinder 403, when the first filter hole and the second filter hole intersection area hole is blocked more seriously, at this time the first half filter cylinder 402 and the second half filter cylinder 403 will be pushed and move away from each other under the action of water pressure, and away from the first filter cylinder 401, at this time, the sand originally retained between the first filter hole and the second filter hole intersection area hole can flow along the first filter hole and the second filter hole with larger aperture under the scouring of the water flow and flow to the water inlet, avoiding the risk of blocking the filter assembly 40 after long-term use.

[0030] Further, as shown in Figure 1 and Figure 3 The vertical positive displacement water meter further comprises a screen cage 50, the mesh aperture of the screen cage 50 is smaller than the radial size of the first filter hole and the second filter hole intersection area, and the screen cage 50 has a containing cavity 501 and a plurality of necked openings 502.

[0031] Need to explain, when a part of the sand passes through the first filter hole and the second filter hole, a part of it will flow into the containing cavity 501 along the necked opening 502, and due to the overall fish cage structure of the screen cage 50, the sand entering the containing cavity 501 will be retained in the containing cavity 501 with a larger probability instead of being discharged from the necked opening 502. By setting the screen cage 50, the amount of sand flowing into the sliding piston 203 after passing through the first filter hole and the second filter hole is effectively reduced.

[0032] Further, in order to realize the sliding setting of the first half filter cylinder 402 and the second half filter cylinder 403 on the metering shell 202, as shown in Figure 3 and Figure 6As shown, the first filter cartridge 401 is fixedly arranged on the metering shell 202, and the metering shell 202 is provided with two guide channels 2025 near one end of the connecting shell 201, and the first half filter cartridge 402 and the second half filter cartridge 403 are respectively slidably arranged in the two guide channels 2025, and the two guide channels 2025 are in communication with the inflow channel 2011, and the filter assembly 40 further comprises two first springs 404, one end of each first spring 404 is connected with the first half filter cartridge 402 or the second half filter cartridge 403, and the other end of the first spring 404 is connected with the wall surface of the corresponding guide channel 2025.

[0033] Further, in order to reduce the normal state, the sand is accumulated in the intersection area of the first filter hole and the second filter hole, and the hole, such as Figure 3 As shown, the vertical volumetric water meter further comprises a cleaning assembly 60, the cleaning assembly 60 comprises a rotating shaft 601 and a cleaning piece 602, the rotating shaft 601 is rotatably installed on the metering shell 202, and the cleaning piece 602 is arranged on the rotating shaft 601. It should be noted that, under normal circumstances, when the water flows through the filter cartridge assembly, the water flow drives the rotating shaft 601 to rotate circumferentially, and since the cleaning piece 602 is installed on the rotating shaft 601, the cleaning piece 602 also rotates circumferentially and cleans the inner wall of the first filter cartridge 401, thereby cleaning a part of the sand accumulated in the intersection area of the first filter hole and the second filter hole.

[0034] Further, since the rotating speed of the rotating shaft 601 is positively correlated with the water flow rate through the filter assembly 40, that is, the greater the water flow rate, the greater the rotating speed of the rotating shaft 601, which also makes the rotating speed of the rotating shaft 601 maximum when the intersection of the first filter hole and the second filter hole is not blocked or less blocked, and the rotating speed of the rotating shaft 601 minimum when the intersection of the first filter hole and the second filter hole is seriously blocked. This also means that the cleaning effect is best when cleaning is least needed, and the actual effect of the cleaning piece 602 is low when it is most needed.

[0035] Therefore, the side wall of the rotating shaft 601 has a guide column, and the cleaning piece 602 is slidably arranged on the guide column, as shown in Figure 3 and Figure 7 As shown, the cleaning assembly 60 further comprises a second spring 603 and a swing rod 604, two ends of the second spring 603 are respectively connected with the guide column and the cleaning piece 602, the cleaning piece 602 has a limiting groove 6021, one end of the swing rod 604 is rotatably connected with the rotating shaft 601, and the other end of the swing rod 604 has a limiting protrusion 6041, and the limiting protrusion 6041 extends into or out of the limiting groove 6021.

[0036] It should be noted that, assuming that the hole at the intersection of the first filter hole and the second filter hole is completely unblocked or slightly blocked at this time, the rotation speed of the rotating shaft 601 is the fastest, and the rotation of the rotating shaft 601 will drive the cleaning member 602 and the swing rod 604 to rotate in the circumferential direction and generate centrifugal force. It should be pointed out that the swing rod 604 rotates horizontally under the action of centrifugal force first, and causes the limiting protrusion 6041 to extend into the limiting groove 6021, and as the cleaning member 602 moves a predetermined distance away from the rotating shaft 601 under the action of centrifugal force, , the limiting protrusion 6041 abuts against the groove wall of the limiting groove 6021 and limits the cleaning member 602 from moving further toward the inner wall of the first filter cartridge 401, that is, at this time, the cleaning member 602 does not clean the inner wall of the first filter cartridge 401, so that when the hole at the intersection of the first filter hole and the second filter hole is completely unblocked or slightly blocked, the cleaning member 602 does not clean the first filter cartridge 401, thereby avoiding the influence of the cleaning member 602 on the water flow rate due to cleaning the first filter cartridge 401; when the hole at the intersection of the first filter hole and the second filter hole is completely unblocked or slightly blocked, the cleaning member 602 does not clean the first filter cartridge 401. When the filter is partially blocked, the rotation speed of the rotating shaft 601 is reduced, and the swing rod 604 cannot make the limiting protrusion 6041 extend into the limiting groove 6021 under the action of centrifugal force. At the same time, the cleaning member 602 can still overcome the elastic force of the second spring 603 under the action of centrifugal force and move toward the inner wall of the first filter cartridge 401. At a certain moment, the bristles of the cleaning member 602 contact the inner wall of the first filter cartridge 401, so that the cleaning member 602 will not work and clean until the hole at the intersection of the first filter hole and the second filter hole is partially blocked. The sediment trapped in the holes at the intersection of the first filter hole and the second filter hole; and when the holes at the intersection of the first filter hole and the second filter hole are severely clogged, the centrifugal force of the rotating shaft 601 is no longer sufficient to make the cleaning member 602 contact the inner wall of the first filter cartridge 401, and the water pressure near the inner wall of the first filter cartridge 401 is large due to the blockage, so the water pressure applies a thrust in opposite directions to the first half filter cartridge 402 and the second half filter cartridge 403, and separates the first filter hole from the second filter hole, so that the sediment can pass through the first filter hole and the second filter hole. It is obvious that compared with the existing technology, the present application has the advantages of having a sediment prevention structure and being able to adaptively take selective cleaning or filter cartridge separation actions according to the actual blockage situation.

[0037] Furthermore, in order to realize that the rotating shaft 601 can rotate circumferentially under the action of water flow, as shown in FIG. Figure 3As shown, the cleaning assembly 60 further comprises a plurality of helical blades 6011 arranged in a ring array on the rotating shaft 601. When water flow impacts the helical blades 6011, the helical blades 6011 are subjected to a circumferential force, and the rotating shaft 601 is rotated circumferentially.

[0038] Further, in order to avoid water flow exerting force on the swing rod 604, as shown in Figure 7 and Figure 8 As shown, the cleaning assembly 60 further comprises a first waterproof shell 6012 and a second waterproof shell 6021. The first waterproof shell 6012 is fixedly connected with the rotating shaft 601, and has a receiving hole 60121 through which the swing rod 604 passes. The second waterproof shell 6021 has a groove 60211 and is slidably sleeved on the first waterproof shell 6012, and the second waterproof shell 6021 is connected with the cleaning piece 602. The receiving hole 60121 has a notch groove on one side of the aperture, and the cleaning piece 602 has a cover plate 6022 on one end close to the rotating shaft 601, which is slidably arranged in the notch groove. When the cleaning piece 602 slides, the cover plate 6022 covers the aperture of the groove 60211.

[0039] It should be noted that the first waterproof shell 6012 and the second waterproof shell 6021 are used to cover the cleaning piece 602, so as to prevent water from flowing into the first waterproof shell 6012 and the second waterproof shell 6021.

[0040] Further, since the top surface or the bottom surface of the swing piston 203 is worn after long-term use, in order to reduce the leakage, the top of the swing piston 203 has a lifting annular groove, as shown in Figure 1 As shown, the metering assembly 20 further comprises a floating ring 207 which is liftably arranged in the lifting annular groove, and the top of the floating ring 207 is flush with the top surface of the swing piston 203.

[0041] In addition, as shown in Figure 1 The bottom of the lifting annular groove has a plurality of water inlet notches 2033.

[0042] It should be noted that when the top surface of the floating ring 207 is worn, the floating ring 207 is floated upward under the action of buoyancy, and the top surface of the floating ring 207 is attached to the bottom surface of the upper seat body 206. When water flows into the water inlet notches 2033, the floating ring 207 is further subjected to an upward force. By arranging the floating ring 207, the service life of the vertical volumetric water meter can be prolonged.

[0043] In summary, the vertical volumetric water meter based on the embodiment of the present application is illustrated, which provides the advantage of the vertical volumetric water meter with the anti-silt structure.

[0044] Those skilled in the art will understand that the above description and the embodiments of the present application shown in the drawings are only examples and do not limit the present application. The purpose of the present application has been fully and effectively achieved. The function and structural principle of the present application have been shown and described in the embodiments, and the embodiments of the present application can be any modification or modification without departing from the principle.

Claims

1. A vertical volumetric water meter, characterized by: The vertical volumetric water meter includes A case assembly, the case assembly comprising a lower case and an upper case, the lower case having a water inlet channel and a water outlet channel, one end of the water inlet channel and the water outlet channel being arranged vertically and having central axes coincident with each other, the upper case being connected to the lower case, the upper case having a through cavity; A metering assembly is provided in the through-hole, comprising a connecting shell, a metering shell, a sliding piston, a baffle, and an output shaft. The connecting shell has an inflow channel, the metering shell has a water inlet, an annular cavity, and a vertical cylinder. The vertical cylinder has a transmission cavity, the annular cavity is coaxially arranged with the transmission cavity, and the annular cavity is located outside the transmission cavity. A convex column is provided in the center of the transmission cavity, the baffle blocks one side of the annular cavity, the sliding piston slides along the baffle while rotating circumferentially around the convex column, the sliding piston is inscribed in the vertical cylinder, and the sliding piston drives the output shaft to rotate circumferentially; A filter assembly, wherein the filter assembly is arranged at one end of the inflow channel close to the metering shell, the filter assembly includes a first filter cartridge and a filter cartridge assembly, the filter cartridge assembly is located on the outside of the first filter cartridge assembly, the first filter cartridge has a first filter hole, the filter cartridge assembly includes a second filter hole, the first filter hole and the second filter hole are staggered and have an intersection, the filter cartridge assembly includes a first half filter cartridge and a second half filter cartridge, the first half filter cartridge and the second half filter cartridge are both slidably arranged on one side of the metering shell close to the connecting shell.

2. The vertical volumetric water meter according to claim 1, characterized in that: The first filter cartridge is fixedly arranged on the metering shell, and the metering shell further has two guide channels at one end close to the connecting shell, and the first half filter cartridge and the second half filter cartridge are respectively slidably arranged in the two guide channels, and the two guide channels are both connected to the inflow channel. The filter assembly also includes two first springs, one end of each first spring is connected to the first half filter cartridge or the second half filter cartridge, and the other end of the first spring is connected to the wall of the corresponding guide channel.

3. The vertical volumetric water meter according to claim 1, characterized in that: The vertical volumetric water meter also includes a cleaning assembly, which includes a rotating shaft, a cleaning piece, a second spring and a swing rod. The rotating shaft is rotatably mounted on the metering shell, and the side wall of the rotating shaft has a guide column. The cleaning piece is slidably arranged on the guide column. The two ends of the second spring are respectively connected to the guide column and the cleaning piece. The cleaning piece has a limiting groove. One end of the swing rod is rotatably connected to the rotating shaft, and the other end of the swing rod has a limiting protrusion. The limiting protrusion extends into or out of the limiting groove.

4. The vertical volumetric water meter according to claim 3, characterized in that: The cleaning assembly further comprises a plurality of spiral blades, which are arranged on the rotating shaft in an annular array.

5. The vertical volumetric water meter according to claim 4, characterized in that: The cleaning assembly also includes a first waterproof shell and a second waterproof shell, the first waterproof shell has a receiving hole, the swing rod passes through the receiving hole, the second waterproof shell has a groove and is slidably mounted on the first waterproof shell, and the second waterproof shell is connected to the cleaning member, a notch is provided on one side of the opening of the receiving hole, and the cleaning member has a cover plate at one end close to the rotating shaft, the cover plate is slidably arranged in the notch, and when the cleaning member slides, the cover plate covers the notch of the groove.

6. The vertical volumetric water meter according to claim 5, characterized in that: The top of the sliding piston is provided with a lifting annular groove. The metering assembly further comprises a floating ring which is liftably arranged in the lifting annular groove, and the top of the floating ring is flush with the top surface of the sliding piston.

7. The vertical volumetric water meter according to claim 6, characterized in that: The bottom of the lifting annular groove is provided with a plurality of water inlet gaps.

8. The vertical volumetric water meter according to claim 1, characterized in that: The metering assembly also includes an upper seat body, which is connected to the metering shell and closes the annular cavity. The output shaft is rotatably mounted on the upper seat body, and one end extends into the transmission cavity. The end of the output shaft extending into the transmission cavity has an extension portion. The center of the sliding piston has a transmission column, one end of the transmission column is in contact with the side wall of the vertical cylinder, and the other end of the transmission column is in contact with the extension portion. The upper seat body has a water outlet.

9. The vertical volumetric water meter according to claim 1, characterized in that: The vertical volumetric water meter further includes a sieve cage, the mesh diameter of the sieve cage is smaller than the radial dimension of the intersection area of ​​the first filter hole and the second filter hole, and the sieve cage has an accommodating cavity and a plurality of constrictions.

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