Volumetric water meter

Abstract

The present invention provides a volumetric water meter, which relates to the technical field of water meters. The volumetric water meter provided by the present invention comprises: a meter case, a lining, and a metering assembly; the meter case is provided with a water inlet and a water outlet; the lining is installed in the meter case, and the lining has a partition portion that is axially inclined relative to the metering assembly, and the inner cavity of the meter case is divided by the partition portion to form a first chamber and a second chamber, the first chamber is connected to the water inlet, and the second chamber is connected to the water outlet; the metering assembly is installed in the meter case, and the first chamber and the second chamber are connected through the metering assembly fluid. In the volumetric water meter provided by the present invention, the water inlet and the water outlet do not need to be distributed along the axial direction of the meter case, so the axial size of the meter case can be reduced, thereby realizing a compact layout of the volumetric water meter.

Description

Technical Field

[0001] The present invention relates to the technical field of water meters, and in particular to a volumetric water meter. Background Art

[0002] The inlet and outlet pipes of a volumetric water meter are typically located on either side of the meter housing, with the inlet and outlet pipes spaced axially along the meter housing. The interior of the housing is divided into an upper chamber and a lower chamber, with one of the inlet and outlet pipes communicating with the upper chamber and the other with the lower chamber. However, this layout results in a large axial dimension for the water meter, making it difficult to install in environments with limited space. Furthermore, water meters typically utilize magnetic fields for signal conversion, making them susceptible to interference from external magnetic fields, which can affect metering accuracy. Summary of the Invention

[0003] The object of the present invention is to provide a volumetric water meter, so as to shorten the axial dimension of the meter case and realize a compact layout of the volumetric water meter.

[0004] In a first aspect, the present invention provides a volumetric water meter comprising: a meter case, a lining, and a metering assembly;

[0005] The watch case is provided with a water inlet and a water outlet;

[0006] The lining is installed in the watch case and has a partition portion that is axially inclined relative to the metering assembly. The inner cavity of the watch case is divided by the partition portion into a first chamber and a second chamber. The first chamber is communicated with the water inlet, and the second chamber is communicated with the water outlet.

[0007] The metering assembly is installed in the watch case, and the first chamber and the second chamber are in fluid communication through the metering assembly.

[0008] In combination with the first aspect, the present invention provides a first possible implementation of the first aspect, wherein the lining comprises: a sleeve and a filter screen;

[0009] The filter is installed at the bottom of the casing, and the casing is installed in the watch case;

[0010] The partition is connected to the outside of the sleeve and extends along the circumference of the sleeve, and the partition is inclined relative to the axis of the sleeve.

[0011] In combination with the first possible implementation of the first aspect, the present invention provides a second possible implementation of the first aspect, wherein a first sealing ring is installed on the partition.

[0012] In combination with the first aspect, the present invention provides a third possible implementation of the first aspect, wherein the metering assembly includes: a metering chamber housing, a rotary piston, a gate, a rotor member, and a metering chamber cover;

[0013] A first opening is provided at the bottom of the metering chamber housing, and the first opening is in fluid communication with the first chamber;

[0014] The rotary piston is installed in the metering chamber housing, the gate is connected to the rotary piston, and the gate extends in a direction away from the axis of the rotary piston;

[0015] The metering chamber cover is covered with the metering chamber housing, and the metering chamber cover is provided with a second opening and a flow guide port, the second opening is communicated with the inner cavity of the metering chamber housing, and the flow guide port is communicated with the second chamber;

[0016] The rotor component passes through the metering chamber cover, and the rotor component is in driving connection with the rotary piston.

[0017] In combination with the third possible implementation of the first aspect, the present invention provides a fourth possible implementation of the first aspect, wherein a plurality of the flow guide ports are provided, and the plurality of the flow guide ports are spaced apart along the circumferential direction of the metering chamber shell.

[0018] In combination with the third possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein the rotor component includes: a magnetic steel, a magnetic steel shaft, and a shift fork;

[0019] The magnetic steel shaft passes through the metering chamber cover, the magnet is installed on the top of the magnetic steel shaft, the shift fork is connected to the magnetic steel shaft, and the shift fork is transmission-connected to the rotary piston.

[0020] In combination with the third possible implementation of the first aspect, the present invention provides a sixth possible implementation of the first aspect, wherein the rotary piston includes: a ring sleeve, a orifice plate, and a piston shaft;

[0021] The orifice plate is connected to the inside of the ring sleeve, the piston shaft is connected to the orifice plate, and the piston shaft is transmission-connected to the rotor component, and the gate plate is connected to the ring sleeve.

[0022] In combination with the sixth possible implementation of the first aspect, the present invention provides a seventh possible implementation of the first aspect, wherein the annular sleeve is provided with a first side hole and a second side hole, the first side hole and the second side hole are spaced apart along the circumferential direction of the annular sleeve, and the gate plate is located between the first side hole and the second side hole.

[0023] In combination with the first aspect, the present invention provides an eighth possible implementation of the first aspect, wherein an indicator assembly is installed on the top of the case, and the indicator assembly is transmission-connected to the metering assembly.

[0024] In combination with the eighth possible implementation manner of the first aspect, the present invention provides a ninth possible implementation manner of the first aspect, wherein a partition plate and a compression ring are installed between the indicator assembly and the metering assembly;

[0025] The partition is located between the compression ring and the metering assembly, and a second sealing ring and an anti-magnetic ring are installed between the compression ring and the partition.

[0026] The embodiments of the present invention bring the following beneficial effects: a lining is installed in the meter case, and the lining has a partition portion that is axially inclined relative to the metering component. The inner cavity of the meter case is divided by the partition portion to form a first chamber and a second chamber. The first chamber is connected to the water inlet pipe port, and the second chamber is connected to the water outlet pipe port. The metering component is installed in the meter case, and the first chamber and the second chamber are connected through the fluid of the metering component. The water inlet pipe port and the water outlet pipe port do not need to be distributed along the axial interval of the meter case, so the axial size of the meter case can be reduced, thereby realizing a compact layout of the volumetric water meter.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 An exploded view of a positive displacement water meter provided by an embodiment of the present invention;

[0030] Figure 2 A cross-sectional view of a positive displacement water meter provided by an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of a lining member of a positive displacement water meter provided in an embodiment of the present invention;

[0032] Figure 4 A schematic diagram of a metering chamber housing of a positive displacement water meter provided in an embodiment of the present invention;

[0033] Figure 5 A schematic diagram of a metering chamber cover of a metering chamber housing of a positive displacement water meter provided in an embodiment of the present invention;

[0034] Figure 6 Schematic diagram of the rotary piston and gate of the volumetric water meter provided in an embodiment of the present invention Figure 1 ;

[0035] Figure 7 Schematic diagram of the rotary piston and gate of the volumetric water meter provided in an embodiment of the present invention Figure 2 ;

[0036] Figure 8 A schematic diagram of a rotor component of a positive displacement water meter provided in an embodiment of the present invention.

[0037] Icons: 100 - case; 101 - water inlet; 102 - water outlet; 103 - first chamber; 104 - second chamber; 200 - liner; 210 - partition; 220 - housing; 230 - filter; 240 - first sealing ring; 300 - metering assembly; 301 - first side hole; 302 - second side hole; 310 - metering chamber housing; 311 - first opening; 320 - rotary piston; 321 - ring; 322 -orifice plate; 323-piston shaft; 330-gate plate; 340-rotor member; 341-magnet; 342-magnet shaft; 343-shift fork; 350-metering chamber cover; 351-second opening; 352-flow guide port; 400-indicator assembly; 500-partition plate; 600-pressure ring; 700-second sealing ring; 800-antimagnetic ring; 900-gasket; 110-ring cover; 120-meter cover; 130-signal acquisition and transmission device. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Physical quantities in formulas, unless separately marked, should be understood as basic quantities of the International System of Units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0040] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0041] like Figure 1 and Figure 2 As shown, the volumetric water meter provided by the embodiment of the present invention includes: a meter case 100, a lining 200 and a metering assembly 300; the meter case 100 is provided with a water inlet pipe 101 and a water outlet pipe 102; the lining 200 is installed in the meter case 100, and the lining 200 has a partition 210 axially inclined relative to the metering assembly 300, and the inner cavity of the meter case 100 is divided by the partition 210 to form a first chamber 103 and a second chamber 104, the first chamber 103 is connected to the water inlet pipe 101, and the second chamber 104 is connected to the water outlet pipe 102; the metering assembly 300 is installed in the meter case 100, and the first chamber 103 and the second chamber 104 are connected through the fluid of the metering assembly 300.

[0042] Specifically, the inner cavity of the case 100 is divided into a first chamber 103 and a second chamber 104 by a partition 210 provided on the liner 200, and the partition 210 is axially inclined relative to the metering component 300, so that the first chamber 103 and the second chamber 104 are stacked in both the horizontal direction and the plumb direction. In this way, the water inlet pipe 101 and the water outlet pipe 102 can be configured as a coaxial layout, or the water inlet pipe 101 and the water outlet pipe 102 can be set at the same height position. The water inlet pipe 101 and the water outlet pipe 102 do not need to be tilted and extended to make the pipes at the same height position, which reduces the length dimension of the case 100 in the pipeline extension direction, realizes the compact layout of the volumetric water meter, and reduces the difficulty of the manufacturing process of the case 100, so that the volumetric water meter can be suitable for smaller installation environments.

[0043] like Figure 1 、 Figure 2 and Figure 3 As shown, in an embodiment of the present invention, the lining 200 includes: a sleeve 220 and a filter 230; the filter 230 is installed at the bottom of the sleeve 220, and the sleeve 220 is installed in the watch case 100; the partition 210 is connected to the outside of the sleeve 220 and extends along the circumference of the sleeve 220, and the partition 210 is inclined relative to the axis of the sleeve 220.

[0044] Filter screen 230 is connected to a support leg below, separating it from the bottom of the inner cavity of case 100, allowing water to flow through filter screen 230. Water entering through water inlet 101 is filtered by filter screen 230 before entering metering assembly 300. During this process, the water flows upward toward metering assembly 300. Furthermore, the filtered water entering metering assembly 300 prevents impurities from causing wear and corrosion on the components of metering assembly 300.

[0045] Furthermore, a first sealing ring 240 is installed on the partition 210 .

[0046] The divider 210 and the housing 220 are integrally formed. The divider 210 protrudes from the housing 220, away from the housing's axis, and forms an annular structure. The axis of the divider 210 forms an angle with the axis of the housing 220. The divider 210 is provided with a groove into which the first sealing ring 240 is mounted. The divider 210 separates the first chamber 103 from the second chamber 104, and the first sealing ring 240 enhances the sealing and isolation effect.

[0047] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6 As shown, the metering assembly 300 includes: a metering chamber housing 310, a rotary piston 320, a gate 330, a rotor part 340 and a metering chamber cover 350; a first opening 311 is provided at the bottom of the metering chamber housing 310, and the first opening 311 is fluidically connected to the first chamber 103; the rotary piston 320 is installed in the metering chamber housing 310, the gate 330 is connected to the rotary piston 320, and the gate 330 extends in a direction away from the axis of the rotary piston 320; the metering chamber cover 350 covers the metering chamber housing 310, and the metering chamber cover 350 is provided with a second opening 351 and a guide port 352, the second opening 351 is connected to the inner cavity of the metering chamber housing 310, and the guide port 352 is connected to the second chamber 104; the rotor part 340 passes through the metering chamber cover 350, and the rotor part 340 is transmission-connected to the rotary piston 320.

[0048] When the volumetric water meter is operating, water flows from the water inlet 101 into the first chamber 103, is filtered by the filter 230, and then enters the metering chamber housing 310 through the first opening 311. The water impacts the rotary piston 320, causing it to reciprocate along the gate 330. The water then flows through the second opening 351 to the top of the metering chamber cover 350, flows through the diversion port 352 into the second chamber 104, and is finally discharged through the water outlet 102.

[0049] Furthermore, a plurality of diversion openings 352 are provided, and the plurality of diversion openings 352 are spaced apart along the circumference of the metering chamber housing 310. By increasing the number of diversion openings 352, it is possible to ensure that water flows smoothly into the second chamber 104, with uniform water flow and reduced vortexes. Furthermore, the water flowing into the second chamber 104 can flow along the inclined surface of the partition 210 toward the water outlet 102, resulting in smoother drainage.

[0050] Furthermore, the rotary piston 320 includes a ring sleeve 321, an orifice plate 322, and a piston shaft 323. The orifice plate 322 is connected to the interior of the ring sleeve 321, and the piston shaft 323 is connected to the orifice plate 322. The piston shaft 323 is in driving connection with the rotor 340, and the gate plate 330 is connected to the ring sleeve 321. While the water flow impacts the gate plate 330 and drives the rotary piston 320 to reciprocate, some water can flow upward through the orifice plate 322, thus achieving flow diversion and preventing excessive load on the rotary piston 320 and gate plate 330 when the flow rate is high.

[0051] like Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 and Figure 8 As shown, the rotor component 340 includes: a magnet 341, a magnet shaft 342 and a shift fork 343; the magnet shaft 342 passes through the metering chamber cover 350, the magnet 341 is installed on the top of the magnet shaft 342, the shift fork 343 is connected to the magnet shaft 342, and the shift fork 343 is transmission-connected to the rotary piston 320.

[0052] When the rotary piston 320 reciprocates, the piston shaft 323 abuts against the shift fork 343, thereby driving the rotation of the magnetic steel shaft 342 and the magnetic steel 341. The rotation signal of the magnetic steel 341 can be transmitted to the indicator assembly 400 through the magnetic coupling principle.

[0053] Furthermore, the annular sleeve 321 is provided with a first side hole 301 and a second side hole 302 . The first side hole 301 and the second side hole 302 are spaced apart along the circumferential direction of the annular sleeve 321 . The gate plate 330 is located between the first side hole 301 and the second side hole 302 .

[0054] Specifically, two first side holes 301 and two second side holes 302 are respectively provided, wherein one first side hole 301 and one second side hole 302 are connected to the area above the orifice plate 322, and the other first side hole 301 and the other second side hole 302 are connected to the area below the orifice plate 322. Thus, not only can the pressure difference on both sides of the gate plate 330 be reduced by diversion, but the rate at which water flows into the area above the orifice plate 322 can also be increased, thereby reducing the water pressure impact on the rotating piston 320 and the gate plate 330 and extending the service life of the equipment.

[0055] like Figure 1 、 Figure 2 and Figure 8 As shown, an indicating assembly 400 is installed on the top of the watch case 100 , and the indicating assembly 400 is transmission-connected to the metering assembly 300 .

[0056] In some embodiments, the indicating assembly 400 and the metering assembly 300 may be directly linked to achieve transmission;

[0057] In this embodiment, the indicating component 400 and the metering component 300 are linked by magnetic coupling principle.

[0058] In this embodiment, a partition 500 and a clamping ring 600 are installed between the indicating component 400 and the metering component 300; the partition 500 is located between the clamping ring 600 and the metering component 300, and a second sealing ring 700 and an anti-magnetic ring 800 are installed between the clamping ring 600 and the partition 500.

[0059] The magnetic components of the indicator assembly 400 and the metering assembly 300 are enclosed by an anti-magnetic ring 800, thereby preventing external magnetic fields from interfering with the indicator assembly 400 and the metering assembly 300, thereby reducing the error of the volumetric water meter. The clamping ring 600 is threadedly engaged with the case 100, and the clamping ring 600 squeezes the partition 500 and makes the partition 500 abut against the metering chamber cover 350, thereby ensuring that the force on the metering assembly 300 is evenly distributed along the circumference, and the preload pressure does not act on the rotating piston 320. The second sealing ring 700 is compressed between the clamping ring 600 and the partition 500, and the outer ring of the second sealing ring 700 is in contact with the inner wall of the case 100, thereby ensuring that the inner cavity of the case 100 is sealed. In addition, a gasket 900 can be installed on the side of the clamping ring 600 facing the second sealing ring 700, and the gasket 900 compresses the second sealing ring 700 to prevent the second sealing ring 700 from being unevenly stressed in the circumferential direction and causing deflection. In addition, a ring cover 110, a watch cover 120 and a signal acquisition and transmission device 130 are installed on the top of the watch case 100. The indicating component 400 is pressed and fixed by the ring cover 110, and the volume of water flowing through the water meter is displayed by the indicating component 400. The signal acquisition and transmission device 130 can transmit the signal to the base station for unified processing.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A volumetric water meter, characterized in that: include: A watch case (100), a lining (200) and a metering assembly (300); The watch case (100) is provided with a water inlet (101) and a water outlet (102); The lining member (200) is installed in the watch case (100), and the lining member (200) has a partition (210) that is axially inclined relative to the metering assembly (300). The inner cavity of the watch case (100) is divided by the partition (210) to form a first chamber (103) and a second chamber (104). The first chamber (103) is communicated with the water inlet pipe (101), and the second chamber (104) is communicated with the water outlet pipe (102). The metering assembly (300) is installed in the watch case (100), and the first chamber (103) and the second chamber (104) are in fluid communication via the metering assembly (300); The metering assembly (300) comprises: a metering chamber housing (310), a rotary piston (320), a gate (330), a rotor (340), and a metering chamber cover (350); A first opening (311) is provided at the bottom of the metering chamber housing (310), and the first opening (311) is in fluid communication with the first chamber (103); The rotary piston (320) is installed in the metering chamber housing (310); The rotary piston (320) comprises: a ring sleeve (321), a hole plate (322), and a piston shaft (323); the hole plate (322) is connected to the inside of the ring sleeve (321), the piston shaft (323) is connected to the hole plate (322), and the piston shaft (323) is transmission-connected to the rotor member (340); the gate plate (330) is movably connected to the ring sleeve (321), and the gate plate (330) extends in a direction away from the axis of the rotary piston (320); The metering chamber cover (350) covers the metering chamber housing (310), and the metering chamber cover (350) is provided with a second opening (351) and a flow guide port (352), wherein the second opening (351) is in communication with the inner cavity of the metering chamber housing (310), and the flow guide port (352) is in communication with the second chamber (104); The rotor component (340) passes through the metering chamber cover (350), and the rotor component (340) is in transmission connection with the rotary piston (320).

2. The volumetric water meter according to claim 1, characterized in that: The lining (200) comprises: a sleeve (220) and a filter (230); The filter (230) is installed at the bottom of the casing (220), and the casing (220) is installed in the watch case (100); The partition (210) is connected to the outside of the sleeve (220) and extends along the circumference of the sleeve (220), and the partition (210) is inclined relative to the axis of the sleeve (220).

3. The volumetric water meter according to claim 2, characterized in that: A first sealing ring (240) is installed on the partition (210).

4. The volumetric water meter according to claim 1, characterized in that: A plurality of the flow guide ports (352) are provided, and the plurality of the flow guide ports (352) are spaced apart along the circumferential direction of the metering chamber housing (310).

5. The volumetric water meter according to claim 1, characterized in that: The rotor component (340) comprises: a magnetic steel (341), a magnetic steel shaft (342), and a shift fork (343); The magnetic steel shaft (342) passes through the metering chamber cover (350), the magnetic steel (341) is installed on the top of the magnetic steel shaft (342), the shift fork (343) is connected to the magnetic steel shaft (342), and the shift fork (343) is transmission-connected to the rotary piston (320).

6. The volumetric water meter according to claim 1, characterized in that: The annular sleeve (321) is provided with a first side hole (301) and a second side hole (302), the first side hole (301) and the second side hole (302) are spaced apart along the circumferential direction of the annular sleeve (321), and the gate plate (330) is located between the first side hole (301) and the second side hole (302).

7. The volumetric water meter according to claim 1, characterized in that: An indicating assembly (400) is installed on the top of the watch case (100), and the indicating assembly (400) is transmission-connected to the metering assembly (300).

8. The volumetric water meter according to claim 7, characterized in that: A partition (500) and a compression ring (600) are installed between the indicating assembly (400) and the metering assembly (300); The partition (500) is located between the clamping ring (600) and the metering assembly (300), and a second sealing ring (700) and an anti-magnetic ring (800) are installed between the clamping ring (600) and the partition (500).

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