CN207395837U - Pressure release type Anti-freezing water meter - Google Patents
Pressure release type Anti-freezing water meter Download PDFInfo
- Publication number
- CN207395837U CN207395837U CN201721486818.4U CN201721486818U CN207395837U CN 207395837 U CN207395837 U CN 207395837U CN 201721486818 U CN201721486818 U CN 201721486818U CN 207395837 U CN207395837 U CN 207395837U
- Authority
- CN
- China
- Prior art keywords
- pressure release
- relief
- watchcase
- tube
- water meter
- 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.)
- Expired - Fee Related
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Abstract
A kind of pressure release type Anti-freezing water meter including the watchcase with water inlet pipe and outlet pipe, sets the impeller box in watchcase, it is characterized in that, the watchcase bottom position opens up that there are one relief holes；Drainage hole is provided on the impeller box plate, relief tube top is fixed on impeller box bottom, and the relief tube lower part for being set with sealing ring is tightly embedded in the relief hole on watchcase；Pressure relief opening is provided on relief tube, two pressure release items that material is elastomer, shape is identical are closely embedded the pressure relief opening on pressure release tube cavity, the fitting seam face relief tube of two pressure release items.The characteristics of this water meter has small flow resistance, and resistance to frost is good.
Description
Technical field
The utility model is related to be used for the measuring instrument of water, particularly resistance to water-flow is low, can prevent the rotor of low temperature bursting by freezing
Formula water meter.
Background technology
Existing rotor water gauge mainly by watchcase, has the cover renovated, is placed in the impeller assembly in watchcase (by impeller box
Formed with impeller) and the compositions such as counter.Existing rotor water gauge has the following disadvantages：First, the water of water meter fluid passage
Drag losses is larger.Since watchcase upper water-out pipe position is higher than water inlet pipe position, water from lower flow to eminence when, it is necessary to pay
Certain head loss.Form the hydraulic head loss of certain non-work done.Second, during the use of water meter after mounting,
In cold climates, the water in watchcase is frozen into ice, and water is frozen into volume expansion about 10% after ice, the pressure which generates
It is applied on the impeller assembly in watchcase, the damage of water meter can be caused.
The earlier application " a kind of through-type Anti-freezing water meter " that the present inventor proposes for disadvantages mentioned above
(ZL201621062830.8), which fixes there are one elastic sealing gasket, so as to form one in watchcase lower part
Confined space, water are frozen into ice and during volume expansions, and expansive force is acted on the gasket, which is formed down centainly
Displacement so as to discharge above-mentioned expansive force, makes the power reduce or will not act on the components such as impeller, so as to protect inside watchcase not
It is damaged by the external force.Pressure release hole is particularly opened up on impeller box bottom, and (in existing water meter, impeller box plate is whole plate
Form) and the bottom plate use three ribs structure design, be more advantageous to the release of freezing and expansion power.
But found in prolonged user's use, above-mentioned Anti-freezing water meter also there are not perfect parts：Water-setting solid
Limited into ice and the active force of volume expansion be subject to watchcase confined space, can only cannot be filled being able to alleviate to a certain degree
Divide and be released effectively.
Utility model content
The purpose of this utility model is to provide a kind of pressure release type Anti-freezing water meter, it is intended to enable the volume expansion power of water freezing
Effectively fully release, so as to provide the part in water meter housing safer protection.
What the purpose of this utility model was realized in：A kind of pressure release type Anti-freezing water meter, including with water inlet pipe and water outlet
The watchcase of pipe, sets the impeller box in watchcase, and watchcase bottom position is opened up there are one relief hole；It is provided with down on impeller box plate
Water hole, relief tube top are fixed on impeller box bottom, and the relief tube lower part for being set with sealing ring is tightly embedded on watchcase
In relief hole；Pressure relief opening is provided on relief tube,
Material is closely embedded for two identical pressure release items of elastomer, shape in pressure release tube cavity, two pressure release items
Pressure relief opening on fitting seam face relief tube.
The relief hole of the watchcase is located at its bottom centre position；There is a tube coupling on the impeller box bottom centre position,
Relief tube top is tightly sleeved on the tube coupling of impeller box bottom, and the pressure relief opening on the relief tube is two bar shaped pressure releases
Mouthful.
The cross-sectional shape of the pressure release tube cavity perforate is for circle or by upper and lower parallel edges and left and right symmetrical arc
Skirt is closed；The cross-sectional shape that described two pressure release items fit together is middle part there are one the circle of through hole or is
There are one through hole, fitting, which is stitched, forms an extruding water outlet fork at position at middle part.
The angle at the extruding water inlet fork for the formation that described two pressure release items fit together is 40 °~60 °.
The material of described two pressure release items is silicon rubber.
The tube coupling of the impeller box bottom is stretched out from bottom to top on impeller box plate, and the tube coupling top closure；It is described
Two pressure release tops are tightly embedded intp the tube coupling inner cavity of impeller box bottom.
Water inlet pipe on the watchcase is identical with the caliber of outlet pipe, and the two is located on same axial line.
Compared with prior art, the advantageous effect of this water meter is：
1. the resistance to water-flow of entire water meter can be effectively reduced.
The identical inlet tube of caliber and outlet are set on watchcase by same axial line, so as to effectively reduce flowing water resistance
Power is conducive to improve the sensitivity of water meter.
2. the pressure of watchcase memory water freezing expansion can effectively, be fully discharged, so as to avoid that water meter internal part is caused
Damage.
Can be freezing when water meter is below 0 DEG C, it is because due to the immense pressure that volume expansion generates, anti-freezing water after water freezing
The principle of table is by being discharged during frost by the water in water gauge chamber outside water meter, reducing the pressure of frost so as to avoid water meter
Damage.In experiment, water meter is placed in 0 DEG C of environment, and continues to reduce temperature, in the process, it can be seen that the water in water meter
It is gradually flowed out by drainage arrangement special on housing under the action of pressure is freezed, when temperature is reduced to below -5 DEG C of degree,
Water freeze over, water meter well-tended appearance.When temperature is adjusted to room temperature again, water meter normally measures, and indices are previous with freezing
Sample.
Description of the drawings
Fig. 1 is this water meter structure sectional view.
Fig. 2, Fig. 3 be respectively relief tube described in Fig. 1 stereogram (section) with after cutting half (the other half is identical)
Stereogram.
Fig. 4 is the top view (showing cavity shape) of relief tube shown in Fig. 2.
Fig. 5 is the stereogram of two pressure release items shown in Fig. 1.
Fig. 6 is the top view that two pressure release items shown in Fig. 5 fit together.
Specific embodiment
Fig. 1 shows that cover 9 is screwed on watchcase, renovates 10 and is hinged in cover 9, circular glass plate 7 (transparent) and washer 8
It is sequentially arranged and is renovating between the contact surface of counter 6.Impeller 5 is placed in impeller box 4, and impeller is movably placed in impeller box
In fixing axle, the gear train assembly (being omitted in Fig. 1) in the driving gear transmission counter 6 of upper impeller, with wheel rotation
Shi Jinhang is counted.
On pressure release type Anti-freezing water meter watchcase 1 there is water inlet pipe 1a and outlet pipe 1b, the impeller box 4 in watchcase 1 is set, it is described
1 bottom position of watchcase is opened up there are one relief hole 1c；Drainage hole 4b is provided on 4 bottom plate of impeller box, 2 top of relief tube is consolidated
4 bottom of impeller box is scheduled on, 2 lower part of relief tube for being set with sealing ring 3 is tightly embedded in the relief hole 1c on watchcase；Pressure release
The pressure relief opening of 1 or 1 or more is provided on pipe 2, two pressure release items 11,12 that material is elastomer, shape is identical are closely
The pressure relief opening being embedded on 2 inner cavity of relief tube, the fitting seam face relief tube 2 of two pressure release items.On the through hole face watchcase
Relief hole (referring to Fig. 2~Fig. 6).
The relief hole 1c of watchcase 1 is located at its bottom centre position；There is a tube coupling on 4 bottom centre position of impeller box
4a, 2 top of relief tube are tightly sleeved on the tube coupling 4a of 4 bottom of impeller box, and the pressure relief opening on the relief tube 2 is two
Bar shaped pressure relief opening 2a.
The cross-sectional shape of 2 inner cavity perforate of relief tube is for circle or by upper and lower parallel edges and left and right symmetrical arc skirt
It closes；The cross-sectional shape that described two pressure release items fit together be middle part there are one through hole circle or be middle part
One is formed there are one through hole, at fitting seam position and squeezes water outlet fork, to form weak seal portion, to squeeze water inlet
Pressure release.
The angle at the extruding water inlet fork for the formation that two pressure release items 11,12 fit together is 40 °~60 °.
The material of two pressure release items 11,12 is silicon rubber.The cavity shape of impeller box bottom tube coupling and pressure release tube cavity shape
Shape is identical.Referring to Fig. 4, the cross-sectional shape of pressure release tube cavity could also say that by upper and lower parallel surface and left and right arcwall face
Composition, so as to relief tube and the positioning during tube coupling snapping of impeller box bottom, so that letting out on the sealing face relief tube of pressure release item
Press mouth.Two pressure release items are fitted in relief tube, and the contact surface that two identical pressure release items of shape press together forms two seams
Mouthful, under the normal climate not frozen in water, which is crimped together without being strutted by the pressure of water, works as water condensation
In the case of ice, the expansive force of water freezing struts the extruding water inlet fork on two pressure release items, and water enters two pressure releases from the opened part
It in the through hole of item, and is discharged from the relief hole of watchcase bottom, the pressure in watchcase is enable fully to discharge.Water meter is let out
Cheng Caiyong compression spring principles are pressed through, are allowed on the pressure release sealing strip that the pressure generated in the process in frost acts on drainage arrangement
Deformation is generated, extra water is promoted to be discharged by pressure relief opening outside water meter, so as to play the purpose of decompression, when temperature is normal, is let out
Press strip slowly recovers normal.
The tube coupling 4a of 4 bottom of impeller box is stretched out from bottom to top on impeller box plate, and the tube coupling top closure；Described two
A pressure release top is tightly embedded intp the tube coupling 4a inner cavities of impeller box bottom.The pipe of water inlet pipe 1a and outlet pipe 1b on watchcase 1
Footpath is identical, and the two is located on same axial line.Through type design advantageously reduces head loss caused by resistance to water-flow.
Claims (7)
1. a kind of pressure release type Anti-freezing water meter, including there is the watchcase (1) of water inlet pipe (1a) and outlet pipe (1b), set watchcase (1)
Interior impeller box (4), it is characterized in that, watchcase (1) bottom position is opened up there are one relief hole (1c)；The impeller box (4)
Drainage hole (4b) is provided on bottom plate, relief tube (2) top is fixed on impeller box (4) bottom, is set with the pressure release of sealing ring (3)
(2) lower part is managed tightly to be embedded in the relief hole (1c) on watchcase；Relief tube is provided with pressure relief opening on (2),
Two pressure release items (11,12) that material is elastomer, shape is identical are closely embedded in relief tube (2) inner cavity, and two are let out
Pressure relief opening on the fitting seam face relief tube (2) of press strip, and a water outlet is formed in the middle part of the two pressure release items to fit together
Through hole；Alternatively, material is closely embedded for a pressure release item of elastomer in pressure release tube cavity, there is a water outlet in the middle part of the pressure release item
Through hole, and a joint-cutting on pressure release item is connected with the water outlet through hole.
2. a kind of pressure release type Anti-freezing water meter according to claim 1, it is characterized in that, the relief hole (1c) of the watchcase (1)
Positioned at its bottom centre position；There are a tube coupling (4a), relief tube (2) top close-fitting on impeller box (4) bottom centre position
It is sleeved on the tube coupling (4a) of impeller box (4) bottom with closing, the pressure relief opening on the relief tube (2) is two bar shaped pressure relief openings
(2a)。
3. a kind of pressure release type Anti-freezing water meter according to claim 2, it is characterized in that, relief tube (2) the inner cavity perforate
Cross-sectional shape is closed for circle or by upper and lower parallel edges and left and right symmetrical arc skirt；Described two pressure release item fittings
Cross-sectional shape together be middle part there are one the circle of through hole or be middle part there are one through hole, at fitting seam position
It forms one and squeezes water outlet fork.
4. a kind of pressure release type Anti-freezing water meter according to claim 3, it is characterized in that, described two pressure release item (11,12) patches
The angle at the extruding water inlet fork for the formation being combined is 40 °~60 °.
5. a kind of pressure release type Anti-freezing water meter according to claim 4, it is characterized in that, described two pressure release items (11,12)
Material is silicon rubber.
6. a kind of pressure release type Anti-freezing water meter according to Claims 1 to 5 any claim, it is characterized in that, the impeller
The tube coupling (4a) of box (4) bottom is stretched out on impeller box plate from bottom to top, and the tube coupling top closure；Described two pressure release items
Top is tightly embedded intp tube coupling (4a) inner cavity of impeller box bottom.
7. a kind of pressure release type Anti-freezing water meter according to claim 6, it is characterized in that, the water inlet pipe on the watchcase (1)
(1a) is identical with the caliber of outlet pipe (1b), and the two is located on same axial line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721486818.4U CN207395837U (en) | 2017-11-09 | 2017-11-09 | Pressure release type Anti-freezing water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721486818.4U CN207395837U (en) | 2017-11-09 | 2017-11-09 | Pressure release type Anti-freezing water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207395837U true CN207395837U (en) | 2018-05-22 |
Family
ID=62325790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721486818.4U Expired - Fee Related CN207395837U (en) | 2017-11-09 | 2017-11-09 | Pressure release type Anti-freezing water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207395837U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917870A (en) * | 2018-09-03 | 2018-11-30 | 三川智慧科技股份有限公司 | A kind of Anti-freezing water meter |
| CN108931278A (en) * | 2018-09-13 | 2018-12-04 | 姜兴龙 | A kind of downward swing door is from pressure release Anti-freezing water meter |
| CN110487347A (en) * | 2019-08-23 | 2019-11-22 | 厦门市京准智能水表有限公司 | A kind of high-precision Anti-freezing water meter and water meter high-precision antifreezing treatment |
-
2017
- 2017-11-09 CN CN201721486818.4U patent/CN207395837U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917870A (en) * | 2018-09-03 | 2018-11-30 | 三川智慧科技股份有限公司 | A kind of Anti-freezing water meter |
| CN108917870B (en) * | 2018-09-03 | 2023-11-03 | 三川智慧科技股份有限公司 | Antifreezing water meter |
| CN108931278A (en) * | 2018-09-13 | 2018-12-04 | 姜兴龙 | A kind of downward swing door is from pressure release Anti-freezing water meter |
| CN108931278B (en) * | 2018-09-13 | 2024-01-30 | 杭州山科电子科技有限公司 | Self-pressure-relief anti-freezing water meter with downward opening door |
| CN110487347A (en) * | 2019-08-23 | 2019-11-22 | 厦门市京准智能水表有限公司 | A kind of high-precision Anti-freezing water meter and water meter high-precision antifreezing treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20191109 |