CN115468618A - Metering chamber mechanism and volumetric water meter base meter - Google Patents
Metering chamber mechanism and volumetric water meter base meter Download PDFInfo
- Publication number
- CN115468618A CN115468618A CN202211011975.5A CN202211011975A CN115468618A CN 115468618 A CN115468618 A CN 115468618A CN 202211011975 A CN202211011975 A CN 202211011975A CN 115468618 A CN115468618 A CN 115468618A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 239000012530 fluid Substances 0.000 claims abstract description 54
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 18
- 238000007789 sealing Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/12—Cleaning arrangements; Filters
- G01F15/125—Filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, e.g. of special material
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides a metering chamber mechanism and a base meter of a positive displacement water meter, relating to the technical field of positive displacement water meters, wherein the metering chamber mechanism comprises: a metering chamber housing and a metering rotor; the metering rotor is connected in the metering chamber cavity shell in a rotating mode around a longitudinally extending axis; the bottom of the metering chamber cavity shell is provided with a first inlet, the top of the metering chamber cavity shell is provided with a second inlet, and the side wall of the metering chamber cavity shell is provided with a fluid outlet; fluid flows in from the first inlet and the second inlet and flows out through the fluid outlet to drive the metering rotor to rotate. According to the metering chamber mechanism and the base meter of the positive displacement water meter, the fluid power flowing in from the first inlet and the second inlet is approximately mutually offset, so that the metering rotor is uniformly stressed in the movement process, the abrasion phenomenon of the metering rotor is effectively improved, and the service life of the water meter is prolonged.
Description
Technical Field
The invention relates to the technical field of volumetric water meters, in particular to a metering chamber mechanism and a volumetric water meter base meter.
Background
The metering chamber mechanism of the positive displacement water meter drives the rotary piston to operate through water flow, however, the water flow can generate axial force action on the rotary piston in the process, the acting force is distributed unevenly along the circumferential direction of the piston, and then the piston has a tendency of deflection relative to the axis of the piston, so that the abrasion of the piston can be increased, and the service life of the water meter is reduced.
In addition, the gravity of the piston can generate axial force action on the piston, so that the bottom of the piston can generate friction with the metering chamber shell, and the friction resistance borne by the piston is increased.
Disclosure of Invention
The invention aims to provide a metering chamber mechanism and a positive displacement water meter base meter so as to relieve the technical problem of abrasion of a metering rotor in the prior art.
In a first aspect, the present invention provides a metering chamber mechanism comprising: a metering chamber housing and a metering rotor;
the metering rotor is connected in the metering chamber cavity shell in a rotating mode around a longitudinally extending axis;
the bottom of the metering chamber cavity shell is provided with a first flow inlet, the top of the metering chamber cavity shell is provided with a second flow inlet, and the side wall of the metering chamber cavity shell is provided with a flow outlet;
fluid flows in from the first inflow port and the second inflow port and flows out through the outflow port to drive the metering rotor to rotate.
With reference to the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein the first inlet is disposed opposite to the second inlet.
With reference to the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein a ratio of an opening area of the first inlet to an opening area of the second inlet is 1 to 1.2.
In combination with the first aspect, the present disclosure provides a third possible implementation form of the first aspect, wherein the metering rotor comprises a piston; the metering chamber cavity shell internally mounted has the flashboard, the piston with the flashboard cooperation.
With reference to the third possible implementation form of the first aspect, the present invention provides a fourth possible implementation form of the first aspect, wherein the piston includes: the sleeve comprises a sleeve body and a porous plate, wherein the porous plate is arranged in the sleeve body and divides an inner cavity of the sleeve body into a lower chamber and an upper chamber;
the lower chamber is in fluid communication with the first inlet and the upper chamber is in fluid communication with the second inlet.
With reference to the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein a magnetic steel rotor is rotatably connected to the metering chamber housing, and the magnetic steel rotor is in transmission connection with the metering rotor.
In a second aspect, the present invention provides a base meter for a positive displacement water meter, comprising: a watch case and the metering chamber mechanism of the first aspect;
the meter shell is provided with a fluid inlet and a fluid outlet, the metering chamber shell is arranged inside the meter shell, the first fluid inlet and the second fluid inlet are respectively communicated with the fluid inlet in a fluid mode, and the fluid outlet is communicated with the fluid outlet in a fluid mode.
In combination with the second aspect, the present invention provides a first possible embodiment of the second aspect, wherein the fluid inlet is fitted with a sieve towards a side of the metering chamber housing.
In combination with the second aspect, the present invention provides a second possible embodiment of the second aspect, wherein a first sealing ring is mounted between the metering chamber housing and the meter housing, the first sealing ring surrounding the fluid outlet.
In combination with the second aspect, the present invention provides a third possible embodiment of the second aspect, wherein the first and second inlet ports are both located on a side of the rotational axis of the metering rotor remote from the fluid inlet port.
The embodiment of the invention has the following beneficial effects: adopt the measurement rotor to rotate around the axis of longitudinal extension and connect in measurement room chamber shell, the bottom of measurement room chamber shell is equipped with first inlet, the top of measurement room chamber shell is equipped with the second inlet, the lateral wall of measurement room chamber shell is equipped with the fluid outlet, the fluid flows in from first inlet and second inlet, and flow out through the fluid outlet, thereby the drive measurement rotor is rotatory, the fluid power that flows in from first inlet and second inlet is approximately in offsetting each other, and then make the even atress of measurement rotor motion in-process, effectively improve the wearing and tearing phenomenon of measurement rotor, the life of measurement room mechanism has been prolonged.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a first schematic diagram of a metering chamber mechanism according to an embodiment of the present invention;
FIG. 2 is a second schematic diagram of a metering chamber mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic view of a bottom shell of a metering chamber of the metering chamber mechanism according to the embodiment of the present invention;
FIG. 4 is an exploded view of a metering chamber mechanism provided by an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a metering chamber mechanism provided by an embodiment of the present invention;
figure 6 is a cross-sectional view of a base meter of a positive displacement water meter according to an embodiment of the present invention;
fig. 7 is an exploded view of a base meter of a positive displacement water meter according to an embodiment of the present invention.
Icon: 001-a metering chamber housing; 101-a first inlet; 102-a second inlet; 103-an outflow port; 110-a metering chamber bottom shell; 111-a first leg; 112-a second leg; 113-a third leg; 114-a first boss; 115-a second boss; 116-a shaft rod; 117-shaft sleeve; 118-a ram; 119-a groove; 120-a metering chamber cover; 002-a metering rotor; 201-a lower chamber; 202-upper chamber; 210-a piston; 211-the cover body; 212-a perforated plate; 213-a piston shaft; 214-a deflector rod; 003-magnet steel rotor; 310-a rotating shaft; 320-a shifting fork; 330-magnetic steel; 004-a watch case; 401-a fluid inlet; 402-a fluid outlet; 005-a filter screen; 006-first sealing ring; 007-baffle plate; 008-a second sealing ring; 009-washer; 010-flat ring; 011-a clamp ring; 012-a protection ring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, 2, 3, 4, 5, and 6, a metering chamber mechanism according to an embodiment of the present invention includes: a metering chamber housing 001 and a metering rotor 002; the metering rotor 002 is rotatably connected within the metering chamber housing 001 about a longitudinally extending axis; a first flow inlet 101 is formed in the bottom of the metering chamber cavity shell 001, a second flow inlet 102 is formed in the top of the metering chamber cavity shell 001, and a flow outlet 103 is formed in the side wall of the metering chamber cavity shell 001; fluid flows in from the first inlet 101 and the second inlet 102 and flows out through the outlet 103 to drive the metering rotor 002 to rotate.
The rivers that enter into measurement room chamber 001 inside from first inlet 101 strike measurement rotor 002 from bottom to top, the rivers that enter into measurement room chamber 001 inside from second inlet 102 strike measurement rotor 002 from top to bottom, the fluid impact force that flows in from first inlet 101 and second inlet 102 is approximately in offsetting each other, and then make measurement rotor 002 atress even, avoid measurement rotor 002 to produce the eccentric wear, the wearing and tearing phenomenon of measurement rotor 002 has been improved, the life of measurement room mechanism has been prolonged.
In the embodiment of the present invention, the first inlet 101 and the second inlet 102 are disposed opposite to each other, so that the water flows entering from the first inlet 101 and the second inlet 102 can face each other and impact each other, and the impact force of the water flows above and below the metering rotor 002 can be better balanced.
Further, the ratio of the opening area of the first inlet 101 to the opening area of the second inlet 102 is 1-1.2, the opening area of the first inlet 101 is slightly larger than the opening area of the second inlet 102, so that the impact force applied to the bottom of the metering rotor 002 is slightly larger than the impact force applied to the top, thereby not only balancing the impact force of the water flow above and below the metering rotor 002, but also bearing the weight of the metering rotor 002, and further slowing down the abrasion applied to the bottom of the metering rotor 002.
As shown in fig. 1, 2, 3, 4, 5, and 6, the metering rotor 002 includes a piston 210; the shutter plate 118 is mounted inside the metering chamber housing 001 and the piston 210 cooperates with the shutter plate 118.
Specifically, the side wall of the piston 210 is provided with a gap, the gate plate 118 is inserted into the gap, and the direction of the gate plate 118 departing from the axis of the piston 210 is connected to the inner side wall of the metering chamber housing 001. In addition, the side wall of the piston 210 is provided with a side hole through which fluid can enter the inner cavity of the piston 210, the bottom shell 110 of the metering chamber is provided with a groove 119 inside, the shutter 118 is inserted into the groove 119, the shutter 118 is partitioned in the flow path from the first inlet 101 to the second inlet 102 to the outlet 103, and when the water flow impacts the piston 210, the piston 210 rotates around the axis extending in the longitudinal direction, and the piston 210 slides along the shutter 118 in the process. During the rotation of the piston 210, water flows from the high-pressure side to the low-pressure side of the shutter plate 118 through the side hole, so that the impact force on the shutter plate 118 can be reduced under the condition of high flow, and the service life of the equipment can be prolonged.
As shown in fig. 1, 2, 3, 4, 5, 6, and 7, the plunger 210 includes: the cover body 211 and the perforated plate 212, the perforated plate 212 is installed in the cover body 211, and the perforated plate 212 divides the inner cavity of the cover body 211 into a lower chamber 201 and an upper chamber 202; the lower chamber 201 is in fluid communication with the first inlet 101 and the upper chamber 202 is in fluid communication with the second inlet 102.
Specifically, the lower chamber 201 is in fluid communication with the first inlet 101 through a side hole formed in the sleeve body 211, the upper chamber 202 is in fluid communication with the second inlet 102 through a side hole, and when the difference between the internal pressure of the lower chamber 201 and the internal pressure of the upper chamber 202 is too large, water flow can pass through the perforated plate 212, so that the internal pressures of the lower chamber 201 and the upper chamber 202 are balanced, and further the axial force applied to the piston 210 is balanced.
In this embodiment, the measurement chamber housing 001 includes: the bottom shell 110 of the metering chamber and the cover 120 of the metering chamber are arranged, the top of the bottom shell 110 of the metering chamber is opened, and the cover 120 of the metering chamber covers the top of the bottom shell 110 of the metering chamber. The first inlet 101 is disposed at the bottom of the bottom shell 110 of the metering chamber, and the second inlet 102 is disposed on the cover 120 of the metering chamber. The bottom of the bottom shell 110 of the metering chamber is connected with a first supporting leg 111, a second supporting leg 112 and a third supporting leg 113, the first supporting leg 111, the second supporting leg 112 and the third supporting leg 113 are arranged at intervals along the circumferential direction of the bottom shell 110 of the metering chamber, and the bottom shell 110 of the metering chamber is supported by the first supporting leg 111, the second supporting leg 112 and the third supporting leg 113 together, so that a gap is formed between the bottom of the bottom shell 110 of the metering chamber and the bottom of the inner cavity of the shell 004 of the meter shell, and further, fluid can flow into the first inlet 101 conveniently. In addition, the outer side wall of the measuring chamber bottom shell 110 is connected with a first protruding portion 114 and a second protruding portion 115, the first protruding portion 114 and the second protruding portion 115 are arranged at intervals along the circumferential direction of the measuring chamber bottom shell 110, the first protruding portion 114 and the second protruding portion 115 are both located on one side of the measuring chamber bottom shell 110, which is far away from the outflow port 103, the first protruding portion 114 and the second protruding portion 115 are respectively matched with the watchcase 004, and the filter screen 005 can be positioned through the first protruding portion 114 and the second protruding portion 115.
It should be noted that, a shaft rod 116 is disposed at the bottom of the inner cavity of the bottom shell 110 of the metering chamber, a shaft sleeve 117 is sleeved on the shaft rod 116, a piston shaft 213 is connected to the bottom of the porous plate 212, the piston shaft 213 is attached to the circumferential surface of the shaft sleeve 117, and when water impacts the shutter 118, the piston 210 rotates around the shaft sleeve 117 along with the shutter 118.
Furthermore, the measuring chamber shell 001 is rotatably connected with a magnetic steel rotor 003, and the magnetic steel rotor 003 is in transmission connection with the measuring rotor 002. Wherein, the top of perforated plate 212 is connected with driving lever 214, is connected with magnet steel rotor 003 transmission through driving lever 214 to it is rotatory to drive magnet steel rotor 003.
Optionally, magnetic steel rotor 003 includes: the rotary shaft 310 penetrates through the metering chamber cover 120, the shifting fork 320 is connected to one end of the rotary shaft 310, and the magnetic steel 330 is connected to the other end of the rotary shaft 310. The driving lever 214 abuts against the shifting fork 320, so as to drive the rotating shaft 310 and the magnetic steel 330 to rotate synchronously.
As shown in fig. 7, the base meter of the volumetric water meter provided by the embodiment of the present invention includes: the watch case 004 and the measuring chamber mechanism described in the above embodiments; the shell 004 is provided with a fluid inlet 401 and a fluid outlet 402, the metering chamber shell 001 is arranged inside the shell 004, the first inlet 101 and the second inlet 102 are respectively communicated with the fluid inlet 401, and the outlet 103 is communicated with the fluid outlet 402. The base meter of the positive displacement water meter has the beneficial effects of the metering chamber mechanism, and the description is omitted here.
Furthermore, a screen 005 is mounted on the side of the fluid inlet 401 facing the metering chamber housing 001, the screen 005 comprising: the mesh screen, and the low density polyethylene frame surrounding the mesh screen, may filter impurities from the water flowing in from the fluid inlet 401 through the filter cloth 005.
Further, a first seal ring 006 is mounted between the metering chamber housing 001 and the housing 004, the first seal ring 006 surrounding the fluid outlet 402. Wherein, the first sealing ring 006 is enclosed to form a rectangular area, and the first sealing ring 006 is squeezed between the metering chamber housing 001 and the meter housing 004, so as to ensure that the joint of the outflow port 103 and the fluid outlet 402 is sealed.
As shown in fig. 1, 3, 2, 4, 5 and 6, the first inlet 101 and the second inlet 102 are both located on the side of the rotational axis of the metering rotor 002 remote from the fluid inlet 401.
A part of the water flowing in from the fluid inlet 401 flows to the upper part of the metering chamber cover 120, and the other part flows to the lower part of the metering chamber bottom shell 110, so that the first inlet 101 and the second inlet 102 simultaneously enter water. Under the condition that the first inlet 101 and the second inlet 102 are both located on the side of the rotating shaft of the metering rotor 002 away from the fluid inlet 401, the water flow flowing to the first inlet 101 and the second inlet 102 tends to be gentle, the water flow flowing in from the first inlet 101 and the second inlet 102 can impact each other more effectively, so that the impact force is offset, the piston 210 is stressed uniformly, and the abrasion on the piston 210 is reduced.
Furthermore, a compression ring 011 is installed on the measuring chamber shell 001, a partition plate 007, a second sealing ring 008, a gasket 009 and a flat ring 010 are sequentially installed between the compression ring 011 and the measuring chamber cover body 120, and in addition, a convex ring on the partition plate 007 is sleeved with a protection ring 012, so that the protection ring 012 surrounds the magnetic steel 330, and thus, the magnetic steel 330 is prevented from being interfered by an external magnetic field.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A metering chamber mechanism, comprising: a metering chamber housing (001) and a metering rotor (002);
the metering rotor (002) is rotatably connected in the metering chamber cavity shell (001) around a longitudinally extending axis;
a first flow inlet (101) is formed in the bottom of the metering chamber cavity shell (001), a second flow inlet (102) is formed in the top of the metering chamber cavity shell (001), and a flow outlet (103) is formed in the side wall of the metering chamber cavity shell (001);
fluid flows in from the first inlet (101) and the second inlet (102) and flows out through the outlet (103) to drive the metering rotor (002) to rotate.
2. The metering chamber mechanism of claim 1, wherein the first inlet (101) is disposed opposite the second inlet (102).
3. The metering chamber mechanism according to claim 1 or 2, characterized in that the ratio of the opening area of the first inlet (101) to the opening area of the second inlet (102) is 1-1.2.
4. The metering chamber mechanism of claim 1 wherein the metering rotor (002) comprises a piston (210);
the metering chamber cavity shell (001) is internally provided with a gate plate (118), and the piston (210) is matched with the gate plate (118).
5. The metering chamber mechanism of claim 4, wherein the piston (210) comprises: the device comprises a sleeve body (211) and a porous plate (212), wherein the porous plate (212) is arranged in the sleeve body (211), and the porous plate (212) divides the inner cavity of the sleeve body (211) into a lower chamber (201) and an upper chamber (202);
the lower chamber (201) is in fluid communication with the first inlet (101) and the upper chamber (202) is in fluid communication with the second inlet (102).
6. The metering chamber mechanism of claim 1, wherein the metering chamber housing (001) is rotatably connected with a magnetic steel rotor (003), and the magnetic steel rotor (003) is in transmission connection with the metering rotor (002).
7. A positive displacement water meter base meter, comprising: a watch case (004) and a metering chamber mechanism as claimed in any one of claims 1 to 6;
the meter shell (004) is provided with a fluid inlet (401) and a fluid outlet (402), the metering chamber cavity shell (001) is installed inside the meter shell (004), the first inlet (101) and the second inlet (102) are respectively communicated with the fluid inlet (401), and the outlet (103) is communicated with the fluid outlet (402).
8. A meter base meter as claimed in claim 7, characterised in that a screen (005) is mounted to the side of the fluid inlet (401) facing the metering chamber housing (001).
9. A positive displacement water meter base watch according to claim 7, characterised in that a first seal ring (006) is mounted between the metering chamber housing (001) and the meter housing (004), the first seal ring (006) surrounding the fluid outlet (402).
10. A volumetric water meter base meter according to claim 7, characterized in that the first inlet (101) and the second inlet (102) are both located on the side of the rotational axis of the metering rotor (002) remote from the fluid inlet (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211011975.5A CN115468618A (en) | 2022-08-23 | 2022-08-23 | Metering chamber mechanism and volumetric water meter base meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211011975.5A CN115468618A (en) | 2022-08-23 | 2022-08-23 | Metering chamber mechanism and volumetric water meter base meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115468618A true CN115468618A (en) | 2022-12-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211011975.5A Pending CN115468618A (en) | 2022-08-23 | 2022-08-23 | Metering chamber mechanism and volumetric water meter base meter |
Country Status (1)
| Country | Link |
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| CN (1) | CN115468618A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1303770A (en) * | 1961-10-13 | 1962-09-14 | Siemens Ag | Rotating piston volumetric meter |
| CN2153044Y (en) * | 1992-11-21 | 1994-01-12 | 王留生 | Rotary pendulum piston, volumetric water meter |
| CN2514319Y (en) * | 2001-12-14 | 2002-10-02 | 张六祥 | Suspension single rotor flowmeter |
| CN101387532A (en) * | 2007-12-25 | 2009-03-18 | 上海埃科燃气测控设备有限公司 | Oil leak-proof gas roots flowmeter and oil leak-proof method |
| CN201392218Y (en) * | 2009-01-24 | 2010-01-27 | 宁波市计量测试所(宁波市衡器管理所) | Rotary piston type water meter measuring chamber structure |
| CN202770478U (en) * | 2012-09-05 | 2013-03-06 | 兰州鑫达智能仪表有限责任公司 | Rotary floatation single rotor dynamic balance flowmeter |
| CN202974372U (en) * | 2012-09-25 | 2013-06-05 | 天津市金凤凌云科技有限公司 | Water meter housing |
| CN103185164A (en) * | 2011-12-31 | 2013-07-03 | 丹佛斯（天津）有限公司 | Electromagnetic valve |
| CN104428529A (en) * | 2012-05-16 | 2015-03-18 | 恩尔格林有限公司 | Fluid regulating valve |
| CN113532575A (en) * | 2021-07-30 | 2021-10-22 | 宁波水表(集团)股份有限公司 | High metering grade water meter |
-
2022
- 2022-08-23 CN CN202211011975.5A patent/CN115468618A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1303770A (en) * | 1961-10-13 | 1962-09-14 | Siemens Ag | Rotating piston volumetric meter |
| CN2153044Y (en) * | 1992-11-21 | 1994-01-12 | 王留生 | Rotary pendulum piston, volumetric water meter |
| CN2514319Y (en) * | 2001-12-14 | 2002-10-02 | 张六祥 | Suspension single rotor flowmeter |
| CN101387532A (en) * | 2007-12-25 | 2009-03-18 | 上海埃科燃气测控设备有限公司 | Oil leak-proof gas roots flowmeter and oil leak-proof method |
| CN201392218Y (en) * | 2009-01-24 | 2010-01-27 | 宁波市计量测试所(宁波市衡器管理所) | Rotary piston type water meter measuring chamber structure |
| CN103185164A (en) * | 2011-12-31 | 2013-07-03 | 丹佛斯（天津）有限公司 | Electromagnetic valve |
| CN104428529A (en) * | 2012-05-16 | 2015-03-18 | 恩尔格林有限公司 | Fluid regulating valve |
| CN202770478U (en) * | 2012-09-05 | 2013-03-06 | 兰州鑫达智能仪表有限责任公司 | Rotary floatation single rotor dynamic balance flowmeter |
| CN202974372U (en) * | 2012-09-25 | 2013-06-05 | 天津市金凤凌云科技有限公司 | Water meter housing |
| CN113532575A (en) * | 2021-07-30 | 2021-10-22 | 宁波水表(集团)股份有限公司 | High metering grade water meter |
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