CN206387461U - A kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure - Google Patents

A kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure Download PDF

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Publication number
CN206387461U
CN206387461U CN201621473143.5U CN201621473143U CN206387461U CN 206387461 U CN206387461 U CN 206387461U CN 201621473143 U CN201621473143 U CN 201621473143U CN 206387461 U CN206387461 U CN 206387461U
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China
Prior art keywords
dcv
check valve
double check
water meter
extension
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Active
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CN201621473143.5U
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Chinese (zh)
Inventor
葛主泽
蒋紫轩
包松浩
朱力
应任锋
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Ningbo Water Meter Group Co Ltd
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Ningbo Water Meter Co Ltd
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Priority to CN201621473143.5U priority Critical patent/CN206387461U/en
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Abstract

The utility model discloses a kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure, including a measurement pipe with water inlet and delivery port, the stage casing of the measurement pipe offers the mounting hole for installing ultrasonic signal device, described delivery port one end, which has in extension, the extension, is provided with double check valve (DCV).Compared with prior art, the utility model is realized successfully with the addition of double check valve (DCV) structure on the premise of ensureing that the effective sound path of ultrasonic wave and correlated performance are stable, and check-valves is installed in water outlet end and also causes stabilization that current are ensure that in ultrasonic wave effective range so that the data gathered in measurement process more accurate.

Description

A kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure
Technical field
The utility model belongs to measuring equipment technical field, specifically a kind of to have the super of unilateral double check valve (DCV) structure Sound shell of water flowmeter.
Background technology
With running water generally using in worldwide, the water meter for water measurement amount is that running water was popularized Indispensable instrument in journey.
Ultrasonic flowmeter is a kind of new measurement flow instrument developed in recent years, as long as ultrasonic wave can be propagated Fluid can use measuring ultrasonic wave flow, because ultrasonic flowmeter internal structure is only two probes, not have pressure when using Loss, so not influenceed by medium, measurement accuracy is high, and use is more and more extensive.Its operation principle is to be entered using time difference method Row flow measurement.Time difference method is surveyed using the difference in ultrasonic pulse downstream propagation times and adverse current propagation time in a fluid Rate of flow of fluid is measured, so as to calculate the flow of fluids within pipes.Therefore, the stability of the flowing of fluid is measured for Ultrasonic water meter Precision have important influence, existing Ultrasonic water meter does not have excessive intervention means for streamflow regime;On the other hand, very Many water pump composites have check-valves to anti-backflow, but due to Ultrasonic water meter in order to measurement accuracy for the effective sound of ultrasonic wave Journey there are certain requirements, and installs check-valves and influences whether the effective sound path of ultrasonic wave, therefore, has no in the prior art in Ultrasonic water meter Check-valves is installed.
The content of the invention
There is provided a kind of ultrasonic water with unilateral double check valve (DCV) structure for deficiency of the prior art for the utility model Watchcase.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals:One kind has one side The Ultrasonic water meter shell of double check valve (DCV) structure, including a measurement pipe with water inlet and delivery port, it is characterised in that:It is described to survey The stage casing of buret offers the mounting hole for installing ultrasonic signal device, and described delivery port one end has extension, described Double check valve (DCV) is provided with extension.The utility model realizes stable in the guarantee effective sound path of ultrasonic wave and correlated performance Under the premise of successfully with the addition of double check valve (DCV) structure, and check-valves is installed in water outlet end and also caused in ultrasonic wave effective range It inside ensure that the stabilization of current so that the data gathered in measurement process more accurate.
In order to obtain superior technique effect, further technical measures also include:Above-mentioned extension is provided at both ends with Preceding retaining groove and rear retaining groove, the double check valve (DCV) are arranged between the preceding retaining groove and rear retaining groove.Retaining groove exists before and after check-valves It ensure that accurate in size in Design and manufacturing process, and to occur without and produce with water impact after check-valves loading The situation of watchcase housing is even gone out in vibrations by current.
Further improve:Check-valves lining ring is provided between above-mentioned double check valve (DCV) and the extension inwall.
In order to realize the multi-functional detection of Ultrasonic water meter, further improve:Above-mentioned mounting hole is 2, in the mounting hole Between be provided with least one Multifunctional zero part be fixedly mounted hole.Said structure can allow Ultrasonic water meter to install multiple Parts with other detecting functions.
Preferably, it is that temperature sensor fixing hole and pressure sensor are installed that hole, which is fixedly mounted, in above-mentioned Multifunctional zero part Wherein one or two in hole.
Compared with prior art, the beneficial effects of the utility model are:The utility model, which is realized, is ensureing that ultrasonic wave has Double check valve (DCV) structure is successfully with the addition of on the premise of effect sound path and correlated performance are stable, and check-valves is installed in water outlet end So that ensure that the stabilization of current in ultrasonic wave effective range so that the essence of the data gathered in measurement process more It is accurate.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model examples measure pipe;
Fig. 2 is the internal structure schematic diagram of the utility model embodiment.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:
Embodiment, a kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure, including one have water inlet 11 and go out The measurement pipe 1 at the mouth of a river 12, it is characterised in that:The stage casing of the measurement pipe 1 offers the peace for installing ultrasonic signal device Hole 13 is filled, described one end of delivery port 12, which has in extension 14, the extension 14, is provided with double check valve (DCV) 2, the extension Retaining groove 15 and rear retaining groove 16 before 14 be provided at both ends with, the double check valve (DCV) 2 are arranged at the preceding retaining groove 15 and rear retaining groove Between 16, check-valves lining ring 3 is provided between double check valve (DCV) 2 and the extension 14 inwall.
In the present embodiment, the mounting hole 13 is 2, and at least two Multifunctional zero is provided between the mounting hole 13 Hole 17 is fixedly mounted in part, and it is that temperature sensor fixing hole and pressure sensor are pacified that hole 17, which is fixedly mounted, in the Multifunctional zero part Fill in hole.

Claims (5)

1. a kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure, including one has water inlet(11)And delivery port(12) Measurement pipe(1), it is characterised in that:The measurement pipe(1)Stage casing offer installation for installing ultrasonic signal device Hole(13), the delivery port(12)One end has extension(14), the extension(14)Inside it is provided with double check valve (DCV)(2).
2. a kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure according to claim 1, it is characterised in that:It is described Extension(14)Be provided at both ends with preceding retaining groove(15)And rear retaining groove(16), the double check valve (DCV)(2)It is arranged at the front Groove(15)And rear retaining groove(16)Between.
3. a kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure according to claim 2, it is characterised in that:It is described Double check valve (DCV)(2)With the extension(14)Check-valves lining ring is provided between inwall(3).
4. a kind of Ultrasonic water meter with unilateral double check valve (DCV) structure according to any claim in claims 1 to 3 Shell, it is characterised in that:The mounting hole(13)For 2, in the mounting hole(13)Between be provided with least one Multifunctional zero Hole is fixedly mounted in part(17).
5. a kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure according to claim 4, it is characterised in that:It is described Hole is fixedly mounted in Multifunctional zero part(17)For one of them in temperature sensor fixing hole and pressure sensor mounting hole or Two.
CN201621473143.5U 2016-12-30 2016-12-30 A kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure Active CN206387461U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621473143.5U CN206387461U (en) 2016-12-30 2016-12-30 A kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621473143.5U CN206387461U (en) 2016-12-30 2016-12-30 A kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure

Publications (1)

Publication Number Publication Date
CN206387461U true CN206387461U (en) 2017-08-08

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CN201621473143.5U Active CN206387461U (en) 2016-12-30 2016-12-30 A kind of Ultrasonic water meter shell with unilateral double check valve (DCV) structure

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CN (1) CN206387461U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1028867B1 (en) * 2020-12-08 2022-07-11 Hydroko A back pressure device for an ultrasonic water meter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1028867B1 (en) * 2020-12-08 2022-07-11 Hydroko A back pressure device for an ultrasonic water meter

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Address after: Hongxing Road Jiangbei District 315032 Zhejiang city of Ningbo province No. 355

Patentee after: Ningbo water meter (Group) Co.,Ltd.

Address before: Hongxing Road Jiangbei District 315032 Zhejiang city of Ningbo province No. 355

Patentee before: NINGBO WATER METER Co.,Ltd.