CN105865539B - Low temperature resistant water meter - Google Patents
Low temperature resistant water meter Download PDFInfo
- Publication number
- CN105865539B CN105865539B CN201610195577.1A CN201610195577A CN105865539B CN 105865539 B CN105865539 B CN 105865539B CN 201610195577 A CN201610195577 A CN 201610195577A CN 105865539 B CN105865539 B CN 105865539B
- Authority
- CN
- China
- Prior art keywords
- watchcase
- cylinder
- diameter portion
- fagging
- water inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000008014 freezing Effects 0.000 abstract description 6
- 238000007710 freezing Methods 0.000 abstract description 6
- 230000009172 bursting Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 108010053481 Antifreeze Proteins Proteins 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
-
- 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
Abstract
The invention discloses a kind of low temperature resistant water meters, it includes watchcase (1), metering movement (2) and cover body (3), it measures movement (2) and is equipped with first annular step face (4), the external screw thread of the internal thread and the cylinder (3.1) of cover body (3) that are open on watchcase (1) screws；Transparent upper cover plate (3.2) is the curved plates bent downward；It is fixed on the bottom plate of the inner cavity of watchcase (1) that there are one the inc cylinder faggings (9) in side, the madial wall of watchcase (1) inner cavity fixes an arc pressuring plate (10), the both ends of arc pressuring plate (10) are fixed with the both sides at the top of the notch of cylinder fagging (9) (9.1) respectively, and the top surface of arc pressuring plate (10) collectively forms separation plane (11) with the top surface of cylinder fagging (9)；The first annular step face (4) of metering movement (2) is pressed in separation plane (11).The water meter be avoided that bursting by freezing, be convenient in demoulding, speed of production it is fast.
Description
Technical field
It is especially that a kind of the resistance to of quick-fried table will not occur at subzero ten degree or so the present invention relates to instrument and meter manufacturing field
Low temperature water meter.
Background technology
Water meter be in field of flow measurement using have a large capacity and a wide range, one of the measuring instrument more than description, in supply and discharge flow
Gauge amount, water rate trade settlement, energy measurement and the control of industrial or agricultural water utilizing process etc. are responsible for particularly important role.
The water meter of the prior art includes watchcase, bushing, metering movement and cover body, cover body include tapped cylinder and with
Cylinder fixed transparent upper cover plate is rotatably combined with the cover for covering transparent upper cover plate, the upper opening of watchcase on cover body
Equipped with external screw thread, the external screw thread being open on the internal thread and watchcase of cover body screws, and cylinder, transparent upper cover plate and watchcase collectively form
The madial wall of table chamber, table chamber is equipped with a circle bulge loop, and bushing is sleeved on outside metering movement, measures movement and bushing is respectively positioned on table intracavitary,
Metering movement is made of large diameter portion and small diameter portion, and first annular step face, small diameter portion circumference are formed between large diameter portion and small diameter portion
Through there is water inlet, large-diameter portion periphery, which runs through, water outlet, measures the first annular step face pressure of movement in watchcase inner wall in face
Bulge loop on, to which the table chamber of watchcase is divided into two parts of epicoele and cavity of resorption, watchcase is equipped with water inlet pipe and outlet pipe, water inlet
Pipe is connected to cavity of resorption and outlet pipe is connected to epicoele.
The operation principle of water meter is that water enters table chamber cavity of resorption from water inlet pipe, enters movement through water inlet, inspires in movement
Portion's structure action is finally discharged from outlet pipe to show that scale enters epicoele from water outlet discharge movement again.
The water meter of the prior art has the following defects：In recent years, with climate change, southern area often occur zero degree with
Lower low temperature leads to the water freezing of table intracavitary and expands, and at the transparent upper cover plate of table chamber and watchcase and cover body threaded engagement portion
Position is easy to cause quick-fried table by spalling；Moreover, because water inlet pipe and the outlet pipe decentraction of watchcase, cause mold complicated, die sinking at
This height, demoulding are slow；Moreover due on watchcase inner wall one circle bulge loop exist so that at table chamber bulge loop internal diameter it is small and at cavity of resorption in
Diameter is big, that is, forms the big tripe structure of osculum, when demoulding, it is difficult to which mold core is extracted out from top, more complicated band can only be used more
The mold insert structure of block insert, knockout course is quite inconvenient, and speed is very slow, and production efficiency is especially low.
Invention content
The technical problem to be solved by the present invention is to, provide one kind be avoided that bursting by freezing, be convenient in demoulding, speed of production is fast, production
Efficient low temperature resistant water meter.
Technical solution of the invention is to provide a kind of low temperature resistant water meter having following structure, it includes watchcase, meter
Measure movement and cover body, cover body include cylinder and with the fixed transparent upper cover plate of cylinder, metering movement is located in the chamber of watchcase, meter
Amount movement is made of large diameter portion and small diameter portion, and first annular step face, small diameter portion periphery are formed between large diameter portion and small diameter portion
Through there is water inlet, for large-diameter portion periphery through having water outlet, watchcase to be equipped with water inlet pipe and outlet pipe, cylinder is equipped with outer spiral shell
Line, opening is equipped with internal thread on watchcase, and the external screw thread of the cylinder of the internal thread and cover body that are open on watchcase screws；Transparent upper cover plate
For the curved plates being made of elastic material bent downward；It is fixed on the bottom plate of the inner cavity of watchcase that there are one the inc circles in side
Cylinder fagging, the madial wall of the notch face water inlet pipe of cylinder fagging, watchcase inner cavity fix an arc pressuring plate, arc pressuring plate
Both ends fixed respectively with the both sides at the top of the notch of cylinder fagging, the either flush of the top surface and cylinder fagging of arc pressuring plate
And two top surfaces collectively form separation plane；The first annular step face of metering movement is pressed in separation plane, thus by table
Shell inner cavity is separated into the chamber being located in cylinder fagging being connected to water inlet pipe and what is be connected to outlet pipe is located at outside cylinder fagging
Chamber；The axis of water inlet pipe and outlet pipe is located along the same line.
The operation principle of the water meter is that cylinder fagging notch two sides form similar arch structure, water with arc pressuring plate
The chamber in cylinder fagging is entered from water inlet pipe across arch structure, and dosing machine is entered by the water inlet of small diameter portion
In-core inspires dosing machine core inner component and makes indicators turn, then by the water outlet discharge metering movement of large-diameter portion, into place
Chamber outside cylinder fagging, is finally discharged by outlet pipe.
After using the above structure, the low temperature resistant water meter of the present invention compared with prior art, has the following advantages：
First, structure originally be on watchcase opening for external screw thread and the cylinder of cover body is internal thread, once freezing and expansion,
On watchcase opening will hard squeeze cover body cause quick-fried table, and the present invention makes on watchcase opening into as internal thread and cover body is outer spiral shell
Line, even if in this way, freezing and expansion, also can only occur enlarged open on watchcase, but since cover body is located on watchcase in opening, the two
Rigid extruding will not occur, will not quick-fried table, moreover, freeze when, the clearance leakage that will not be open between cover body from watchcase,
And after ice thaw, on watchcase, opening is reduced to restore and is bonded again with cylinder, avoids the position leak；Moreover, transparent upper cover plate is
Reclinate curved slab, can be by curved surface when icing in this way, just leave surplus and the space of breathing deformation for freezing and expansion
Plate pushes up upwards so that curved slab becomes to bloat upwards by being bent downwardly, in this way, avoiding the quick-fried table at transparent upper cover plate；Moreover,
Due to having made to be fixed on the circle bulge loop on the madial wall of watchcase chamber into cylinder fagging on cham-ber floor, in this way, from bowing
Apparent direction sees watchcase, is no longer the big tripe of osculum, when demoulding core pulling, directly extracts main mould core from the bottom up out, then will be located at arc
Insert below shape connecting plate is taken out, and more insert structures compared with prior art, watchcase mould structure of the invention is greatly
Simplify, demoulding is also more convenient, accelerates stripping rate, production efficiency is greatly improved；Moreover water inlet pipe and outlet pipe are set
It counts into coaxial, in this way, watchcase has just been designed to symmetrical structure, further simplifies mould structure so that the process of core_pulling demoulding
Simpler convenience, further improves production efficiency.
Preferably, watchcase uses fiber nylon, the shrinking percentage of material is δ, and it is T to need the limiting temperature born, then
Watchcase wall thickness is D, wherein
In formula, σ=0.88, u=3.2, a=0.01, b=-0.08, c=-0.03, D are watchcase wall thickness, unit mm, T
For temperature, unit K, δ are material shrinkage, and to keep wall thickness calculation formula dimension unified, coefficient a and c unit is mm, coefficient b
Unit is mm/K, in this way, the thickness when watchcase meets above-mentioned functional relation with material shrinkage and the limiting temperature that can be born
When, the resistance to frost of watchcase is best；In other words, the limit that the winter minimum temperature of location can be born as needs
Temperature is T, and is δ according to the shrinking percentage of used material, brings formula into, finds out the optimum thickness of watchcase, is obtained best anti-
Freeze performance.
Description of the drawings
Fig. 1 is the positive schematic cross-sectional view of the low temperature resistant water meter of the present invention.
Fig. 2 is the overlooking structure diagram of the watchcase of the low temperature resistant water meter of the present invention.
Fig. 3 is the wherein structural schematic diagram of half after the watchcase of the low temperature resistant water meter of the present invention is broken away.
Fig. 4 is that the watchcase of the low temperature resistant water meter of the present invention is broken away the other half rear structural schematic diagram.
As shown in the figure 1, watchcase, 1.1, third annular step surface, 2, metering movement, 2.1, large-diameter portion, 2.2, small diameter portion, 3,
Cover body, 3.1, cylinder, 3.2, transparent upper cover plate, 3.3, retainer ring, the 3.4, second annular step surface, 4, first annular step face, 5,
Water inlet, 6, water outlet, 7, water inlet pipe, 8, outlet pipe, 9, cylinder fagging, 9.1, notch, 10, arc pressuring plate, 11, separate it is flat
Face, 12, bushing, 13, seal washer, 14, sealing ring, 15, baffle ring, 16, side seal board.
Specific implementation mode
The invention will be further described in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the low temperature resistant water meter of the present invention, it includes watchcase 1, bushing 12, measures 2 He of movement
Cover body 3.
Cover body 3 include cylinder 3.1 and with 3.1 fixed transparent upper cover plate 3.2 of cylinder, it is inside that the upper end of cover body 3 is equipped with diameter
Convex retainer ring 3.3, transparent upper cover plate 3.2 are against on retainer ring 3.3 and are equipped with seal washer 13, transparent upper cover plate 3.2 between the two
Lower section also be provided with seal washer 13.
Cylinder 3.1 is equipped with external screw thread, and opening is equipped with internal thread, the internal thread being open on watchcase 1 and cover body 3 on watchcase 1
The external screw thread of cylinder 3.1 screw；Specifically, there are the second annular step surfaces between the normal reach and thread segment of cylinder 3.1
3.4, sealing ring 14 is equipped between the top surface of the upper opening of the second annular step surface 3.4 and watchcase 1.
Bushing 12 is sleeved on metering movement 2 and bushing 12 and metering movement 2 are located in the chamber of watchcase 1.Diameter on bushing 12
Convex has a baffle ring 15, and the madial wall of the chamber of watchcase 1 is equipped with third annular step surface 1.1, and the bottom end of cylinder 3.1 is by bushing
12 baffle ring 15 is pressed in third annular step surface 1.1, and also is provided between the bottom end of cylinder 3.1 and the baffle ring 15 of bushing 12
Sealing ring 14.
Metering movement 2 is made of the small diameter portion 2.2 of the large-diameter portion 2.1 of upper part and lower part, large-diameter portion 2.1 and small diameter portion
2.2 are interconnected and coaxially, form first annular step face 4 between large-diameter portion 2.1 and small diameter portion 2.2.2.2 periphery of small diameter portion
Through there is water inlet 5,2.1 periphery of large-diameter portion, which runs through, water outlet 6.
Watchcase 1 is equipped with water inlet pipe 7 and outlet pipe 8.Transparent upper cover plate 3.2 be bend downward it is for example transparent by elastic material
The curved plates that nylon material is constituted.It is fixed on the bottom plate of the inner cavity of watchcase 1 that there are one the inc cylinder fagging 9 in side, cylinders
The 9.1 face water inlet pipe 7 of notch of fagging 9, the madial wall of 1 inner cavity of watchcase fix an arc pressuring plate 10, arc pressuring plate 10
Both sides of the both ends respectively with the top of the notch of cylinder fagging 9 9.1 fix, more specifically, in the notch 9.1 of cylinder fagging 9
Two sides on be respectively equipped with one piece of side seal board 16, the outside of every piece of side seal board 16 is connect with the madial wall of 1 inner cavity of watchcase,
And the both ends of arc pressuring plate 10 are connect with the top of two side seal boards 16 of 9.1 both sides of notch of cylinder fagging 9.Arc connects
Plate 10 and two side seal boards 16 of the both sides of the notch 9.1 of cylinder fagging 9 constitute the arch structure for supplying water and passing through.
The top surface of arc pressuring plate 10 and the either flush of cylinder fagging 9 and two top surfaces collectively form separation plane 11.
Metering movement 2 first annular step face 4 be pressed in separation plane 11, to by 1 inner cavity of watchcase be separated into
The chamber being located in cylinder fagging 9 being connected to of water inlet pipe 7 and the chamber being located at outside cylinder fagging 9 being connected to outlet pipe 8；Water inlet
The axis of pipe 7 and outlet pipe 8 is located along the same line.
The low temperature resistant water pump composite mode is identical as common water pump composite, in the unshielded requirement in southern Jiangsu and Zhejiang Provinces area, together
When, after temperature is normal, this patent product is without carrying out secondary calibration.
Watchcase 1 uses fiber nylon, and the shrinking percentage of material is δ, and it is T to need the limiting temperature born, then 1 wall thickness of watchcase
For D, wherein
In formula, σ=0.88, u=3.2, a=0.01, b=-0.08, c=-0.03, D are 1 wall thickness of watchcase, unit mm, T
For temperature, unit K, δ are material shrinkage, and to keep wall thickness calculation formula dimension unified, coefficient a and c unit is mm, coefficient b
Unit is mm/K.
Claims (2)
1. a kind of low temperature resistant water meter, it includes that watchcase (1), metering movement (2) and cover body (3), cover body (3) include cylinder (3.1)
With with the fixed transparent upper cover plate (3.2) of cylinder (3.1), metering movement (2) be located in the chamber of watchcase (1), measure movement (2)
It is made of large-diameter portion (2.1) and small diameter portion (2.2), forms first annular step face between large-diameter portion (2.1) and small diameter portion (2.2)
(4), for small diameter portion (2.2) periphery through there is water inlet (5), large-diameter portion (2.1) periphery, which runs through, water outlet (6), watchcase (1)
It is equipped with water inlet pipe (7) and outlet pipe (8), it is characterised in that：Cylinder (3.1) is equipped with external screw thread, is open and is equipped on watchcase (1)
The external screw thread of internal thread, the internal thread and the cylinder (3.1) of cover body (3) that are open on watchcase (1) screws；Transparent upper cover plate (3.2)
For the curved plates being made of elastic material bent downward；It is fixed on the bottom plate of the inner cavity of watchcase (1) not to be closed there are one side
Cylinder fagging (9), notch (9.1) face water inlet pipe (7) of cylinder fagging (9), the madial wall of watchcase (1) inner cavity fixes one
The both ends of arc pressuring plate (10), arc pressuring plate (10) are solid with the both sides at the top of the notch of cylinder fagging (9) (9.1) respectively
Fixed, the top surface of arc pressuring plate (10) and the either flush of cylinder fagging (9) and two top surfaces collectively form separation plane (11)；
Metering movement (2) first annular step face (4) be pressed in separation plane (11), to by watchcase (1) inner cavity be separated into
The chamber of water inlet pipe (7) connection being located in cylinder fagging (9) and be connected to outlet pipe (8) positioned at cylinder fagging (9) outside
Chamber；The axis of water inlet pipe (7) and outlet pipe (8) is located along the same line.
2. low temperature resistant water meter according to claim 1, it is characterised in that：Watchcase (1) uses fiber nylon, the receipts of material
Shrinkage is δ, and it is T to need the limiting temperature born, then watchcase (1) wall thickness is D, wherein
In formula, σ=0.88, u=3.2, a=0.01, b=-0.08, c=-0.03, D are watchcase (1) wall thickness, and unit mm, T are
Temperature, unit K, δ are material shrinkage, and to keep wall thickness calculation formula dimension unified, coefficient a and c unit is mm, and coefficient b is mono-
Position is mm/K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195577.1A CN105865539B (en) | 2016-03-31 | 2016-03-31 | Low temperature resistant water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195577.1A CN105865539B (en) | 2016-03-31 | 2016-03-31 | Low temperature resistant water meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105865539A CN105865539A (en) | 2016-08-17 |
| CN105865539B true CN105865539B (en) | 2018-09-18 |
Family
ID=56626508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610195577.1A Active CN105865539B (en) | 2016-03-31 | 2016-03-31 | Low temperature resistant water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105865539B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686733B (en) * | 2019-10-15 | 2022-07-12 | 鹰潭道朴智能科技有限责任公司 | Stainless steel water meter shell and water meter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0994288A1 (en) * | 1998-09-08 | 2000-04-19 | Ewald Beninga | Apparatus for connecting a volumetric flow meter to a pipeline |
| CN2426973Y (en) * | 2000-05-18 | 2001-04-18 | 岳殿贵 | Liquid flow monitor |
| CN2499802Y (en) * | 2001-10-30 | 2002-07-10 | 何芝财 | Full plastic new water meter |
| DE102006054867A1 (en) * | 2006-11-20 | 2008-05-29 | Hydrometer Gmbh | Meter e.g. flow meter, housing for pipeline, has flexible wall section limiting flow path and provided in body and connecting tubes, where wall section is deformable by fluid pressure and flow path for fluid is formed in housing and tubes |
| CN201177525Y (en) * | 2008-03-21 | 2009-01-07 | 深圳市华旭科技开发有限公司 | Wet-type meter adopting inner pressure assembled cassette mechanism |
| CN202362034U (en) * | 2011-11-29 | 2012-08-01 | 东莞市德山水表有限公司 | Tap water meter |
| CN102636232A (en) * | 2012-03-09 | 2012-08-15 | 何国忠 | Stainless steel water meter shell |
| CN202793499U (en) * | 2012-04-25 | 2013-03-13 | 昆明理工大学 | Frosting-prevention water meter |
-
2016
- 2016-03-31 CN CN201610195577.1A patent/CN105865539B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0994288A1 (en) * | 1998-09-08 | 2000-04-19 | Ewald Beninga | Apparatus for connecting a volumetric flow meter to a pipeline |
| CN2426973Y (en) * | 2000-05-18 | 2001-04-18 | 岳殿贵 | Liquid flow monitor |
| CN2499802Y (en) * | 2001-10-30 | 2002-07-10 | 何芝财 | Full plastic new water meter |
| DE102006054867A1 (en) * | 2006-11-20 | 2008-05-29 | Hydrometer Gmbh | Meter e.g. flow meter, housing for pipeline, has flexible wall section limiting flow path and provided in body and connecting tubes, where wall section is deformable by fluid pressure and flow path for fluid is formed in housing and tubes |
| CN201177525Y (en) * | 2008-03-21 | 2009-01-07 | 深圳市华旭科技开发有限公司 | Wet-type meter adopting inner pressure assembled cassette mechanism |
| CN202362034U (en) * | 2011-11-29 | 2012-08-01 | 东莞市德山水表有限公司 | Tap water meter |
| CN102636232A (en) * | 2012-03-09 | 2012-08-15 | 何国忠 | Stainless steel water meter shell |
| CN202793499U (en) * | 2012-04-25 | 2013-03-13 | 昆明理工大学 | Frosting-prevention water meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105865539A (en) | 2016-08-17 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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Effective date of registration: 20200821 Address after: 315181 Lin village, Haishu District, Ningbo, Zhejiang Patentee after: NINGBO DONGHAI Group Corp. Address before: 315181, Zhejiang, Ningbo province Yinzhou District Heng Town Forest Village Patentee before: NINGBO DONGHAI INSTRUMENT WATERWAY Co.,Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160817 Assignee: NINGBO DONGHAI INSTRUMENT WATERWAY CO.,LTD. Assignor: Ningbo Donghai Group Corp. Contract record no.: X2023330000872 Denomination of invention: Low temperature resistant water meter Granted publication date: 20180918 License type: Exclusive License Record date: 20231123 |