CN108680219A - A kind of down-mounting type preventing frostbite water meter - Google Patents
A kind of down-mounting type preventing frostbite water meter Download PDFInfo
- Publication number
- CN108680219A CN108680219A CN201810925260.8A CN201810925260A CN108680219A CN 108680219 A CN108680219 A CN 108680219A CN 201810925260 A CN201810925260 A CN 201810925260A CN 108680219 A CN108680219 A CN 108680219A
- Authority
- CN
- China
- Prior art keywords
- water meter
- leak detection
- mounting type
- counterbore
- closing cap
- 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.)
- Granted
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 208000001034 Frostbite Diseases 0.000 title claims abstract description 44
- 238000009434 installation Methods 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims description 61
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- 238000002955 isolation Methods 0.000 claims description 20
- 230000002528 anti-freeze Effects 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 208000005168 Intussusception Diseases 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 2
- 230000002441 reversible effect Effects 0.000 claims description 2
- 230000008023 solidification Effects 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009172 bursting Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- 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
- G01F15/10—Preventing damage by freezing or excess pressure or insufficient pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a kind of down-mounting type preventing frostbite water meter, solve the problems, such as that water meter does not have frost-cracking-preventing ability at this stage.Its key points of the technical solution are that a kind of down-mounting type preventing frostbite water meter, including watchcase, the impeller assembly being installed in watchcase, the water meter counter being correspondingly arranged with impeller assembly, the watchcase has the installation cavity installed for impeller assembly, the frost-cracking-preventing component that the lower end of the watchcase offers the lower installing port communicated with installation cavity and is seal-installed at lower installing port, the frost-cracking-preventing component includes the closing cap being tightly connected with lower installing port, sealing sliding and the seal disc in closing cap and the elastic component being supported between closing cap inner bottom surface and seal disc, the down-mounting type preventing frostbite water meter, which can reduce after the water in water meter freezes, damages watchcase, to extend the service life of down-mounting type preventing frostbite water meter.
Description
Technical field
The present invention relates to a kind of water meters, more particularly to a kind of down-mounting type preventing frostbite water meter.
Background technology
The water meter that tradition uses at present does not have the structure of frost-cracking-preventing generally, when environment temperature reduces the solidification point of water
Afterwards, water congeals into ice in water meter, and volume is caused to increase, and the pressure of water meter inner cavity increases so that the cover and table body quilt of water meter
It destroys, has seriously affected the service life of water meter.
Invention content
The object of the present invention is to provide a kind of down-mounting type preventing frostbite water meter, the down-mounting type preventing frostbite water meter can reduce water
Water in table damages watchcase after freezing, to extend the service life of down-mounting type preventing frostbite water meter.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of down-mounting type preventing frostbite water meter, including watchcase, be installed in watchcase impeller assembly, be correspondingly arranged with impeller assembly
There is the installation cavity installed for impeller assembly, the lower end of the watchcase to offer and installation sky for water meter counter, the watchcase
The lower installing port that chamber communicates and the frost-cracking-preventing component being seal-installed at lower installing port, the frost-cracking-preventing component include and lower peace
Dress mouth be tightly connected closing cap, sealing sliding with closing cap in seal disc and be supported in closing cap inner bottom surface with
Elastic component between seal disc.
By using above-mentioned technical proposal, the operation principle of above-mentioned frost-cracking-preventing component is as follows：When down-mounting type frost-cracking-preventing
Water in water meter occurs after freezing, since the volume of ice is more than the volume of water so that the hydraulic pressure in installation cavity rises, and will seal
Disk compression downwards is to compression elastic piece so that the hydraulic pressure in installation cavity can be kept constant, to reduce watchcase because of peace
Fill the probability of the water freezing in cavity and breakage.Therefore above-mentioned frost-cracking-preventing component is used, can be reduced after the water in water meter freezes
Watchcase is damaged, to extend the service life of down-mounting type preventing frostbite water meter.
Meanwhile the hydraulic pressure that the setting of above-mentioned frost-cracking-preventing component can buffer in down-mounting type preventing frostbite water meter is stirred, and bullet is passed through
The cooperation of property part and seal disc, can be effectively reduced the rotation counting to impeller assembly and water meter counter due to hydraulic pressure is stirred
Caused by influence.
As a further improvement on the present invention, the elastic component is inverted conical compression spring, the cone pressure
The coil of contracting spring being capable of mutual intussusception.
By using above-mentioned technical proposal, the setting of above-mentioned conical compression spring can ensure elastic component can there are one
Larger compression travel, since the coil of conical compression spring being capable of mutual intussusception so that conical compression spring is compressed
To it is ultimate attainment when, a disk can be pressed into.
Meanwhile conical compression spring more stablizes the support of seal disc so that seal disc is upper in closing cap
Lower sliding is more steady.
As a further improvement on the present invention, the side wall of the seal disc circumferentially offers the first closure gasket groove and is installed on
The first sealing ring abutted in first closure gasket groove and with closing cap inner wall, the bottom of the seal disc is offered for cone
The locating slot being put at the top of compressed spring.
By using above-mentioned technical proposal, in above-mentioned seal disc the setting of the first closure gasket groove and the first sealing ring realize
Seal disc sealing Sliding Structures upper and lower in closing cap.Meanwhile the setting of locating slot can be further to conical compression
The positioning of spring so that conical compression spring is more steady to the support of seal disc.
As a further improvement on the present invention, the bottom of the closing cap is further opened with leak detection counterbore, the seal closure
Cover and be also equipped with leak detection assembly at leak detection counterbore, the leak detection assembly include the leak detection be inserted into from top to bottom in leak detection counterbore by
Button and the elastic pressing disc for being pressed on leak detection button top by elastic component and button sealing of hunting leak being pressed in leak detection counterbore.
By using above-mentioned technical proposal, since down-mounting type preventing frostbite water meter is a kind of component of long-term practicality, need
Whether the frost-cracking-preventing component for carrying out its inside of periodic detection fails.By pressing leak detection button upwards, if had in leak detection counterbore
Water flows out, that is, the sealing demonstrated between seal disc and closing cap is no longer valid, needs between seal disc and closing cap
Sealing element replaced.It is simple and convenient using the leak detection mode of above-mentioned leak detection assembly, it is disassembled compared to by closing cap
Leak detection mode for, the efficiency of above-mentioned leak detection mode is compared with higher.
As a further improvement on the present invention, the center of the elastic pressing disc offers permeable through-hole and on permeable through-hole side
Multiple permeable slots being radially arranged circumferentially are uniformly provided with, the elastic pressing disc forms between adjacent permeable slot and presses leak detection
Button is pressed on leak detection counterbore to realize leak detection button and the sealing of leak detection counterbore and flexible compression piece.
By using above-mentioned technical proposal, the elastic pressing disc of above structure compact-sized and to the pressure for button of hunting leak compared with
To be uniform, when the personnel of leak detection will hunt leak button is upward have been pressed when, the probability that leak detection button and elastic pressing disc shift is relatively low.
As a further improvement on the present invention, the inner bottom surface of the closing cap is equipped with madial wall in the outside of leak detection counterbore
The spacing ring to fit with elastic pressing disc side.
By using above-mentioned technical proposal, the setting of spacing ring can further limit elastic pressing disc, as leak detection people
When member has pressed leak detection button upwards, the probability that elastic pressing disc shifts further reduced.
As a further improvement on the present invention, the leak detection counterbore includes cylindrical straight hole and back taper successively from bottom to up
The taper hole of mesa-shaped, the leak detection button have the sealing inclined-plane for fitting in taper hole inner wall.
By using above-mentioned technical proposal, the setting of taper hole and sealing inclined-plane can reinforce hunting leak counterbore and hunt leak button it
Between sealing effect.Meanwhile can also facilitate leak detection personnel that will hunt leak button jack-up, if there are ponding in closing cap, this
Part ponding can also facilitate to flow out out of leak detection counterbore.
As a further improvement on the present invention, the impeller assembly includes impeller and is supported in the lower thimble of impeller lower end,
The watchcase is with the lower isolation board of installing port and installation cavity and center with positioning through hole of isolation, the top of the isolation board
It is fixed with impeller mounting plate, there is the impeller mounting plate positioning counterbore with positioning through hole face, the impeller mounting plate to exist
The thimble axle sleeve of positioning counterbore and positioning through hole is also equipped with while is inserted into positioning counterbore, and the thimble axle sleeve, which has, supplies lower top
Needle is inserted into fixed installing blind, and the isolation board also has the first through hole group through its upper and lower end face, the impeller installation
Plate also has the second sets of vias being interconnected with first through hole group.
By using above-mentioned technical proposal, the effect of above-mentioned isolation board is mainly used for reinforcing the structural strength of watchcase, together
When impeller support plate can be supported.The positioning through hole of isolation board, the positioning counterbore of impeller support plate and thimble axle sleeve
Cooperation realize lower thimble be supported, that is, complete and enable impeller assembly empty in installation the support of impeller assembly
Intracavitary is rotated.Meanwhile the setting of the second sets of vias of the first through hole group and impeller mounting plate on isolation board, it can ensure
Water in installation cavity can normally compress seal disc, realize the function of the frost-cracking-preventing of above-mentioned down-mounting type preventing frostbite water meter.
As a further improvement on the present invention, the inner wall of the closing cap is circumferentially with installation annular groove and is installed on installation
Antifreeze driffractive ring in annular groove, the antifreeze driffractive ring include annular water-soluble film and the wine that is filled in annular water-soluble film
Essence, when down-mounting type preventing frostbite water meter does not freeze, the installation annular groove is located at the lower section of seal disc.
By using above-mentioned technical proposal, after water freezes in down-mounting type preventing frostbite water meter, the seal disc elasticity of compression
Part declines so that the annular water-soluble film of antifreeze driffractive ring is contacted and dissolved with water, the alcohol being located in annular water-soluble film
It enters in water, since the solidification point of water and the mixture of alcohol is relatively low, water in down-mounting type preventing frostbite water meter can be extenuated
Freeze, to reduce the breakage of watchcase, to extend the service life of down-mounting type preventing frostbite water meter.
As a further improvement on the present invention, the circumferential direction of the seal disc opens up there are two the second closure gasket groove and pacifies respectively
Loaded on the second sealing ring in two the second closure gasket grooves, the spacing of adjacent second closure gasket groove is more than the width of installation annular groove
Degree.
By using above-mentioned technical proposal, on seal disc the setting of the second closure gasket groove and the second sealing ring enable to close
Closing disk can also keep sealing state when by installing annular groove.
In conclusion the invention has the advantages that：
1, a kind of down-mounting type preventing frostbite water meter, including watchcase, impeller assembly, water meter counter and frost-cracking-preventing component, frost-cracking-preventing group
Part includes closing cap, seal disc and elastic component, and when the water in the installation cavity of watchcase solidifies, volume increases, installation
Hydraulic pressure in cavity rises, to compression seal disk and elastic component, to significantly reduce watchcase by damaged probability；
2, by the way that leak detection assembly is arranged, testing staff can be facilitated periodically to check down-mounting type preventing frostbite water meter, detection is close
Between closing disk and closing cap whether seal failure the problem of；
3, by the way that antifreeze driffractive ring is arranged, after water and the contact of antifreeze driffractive ring, the alcohol in the annular water-soluble film of antifreeze driffractive ring
It will release, reduce the solidification point of water, to extenuate the probability that down-mounting type preventing frostbite water meter freezes, while can also carry
Lift the probability that low down-mounting type preventing frostbite water meter bursts.
Description of the drawings
Fig. 1 is a kind of diagrammatic cross-section of down-mounting type preventing frostbite water meter in embodiment 1；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the cross-sectional view of watchcase in embodiment 1；
Fig. 4 is the structural schematic diagram of impeller mounting plate in embodiment 1；
Fig. 5 is structural schematic diagram of the frost-cracking-preventing component when it is installed on the lower erection joint of watchcase in embodiment 1；
Fig. 6 is the enlarged drawing at B in Fig. 5；
Fig. 7 is the structural schematic diagram of elastic pressing disc in embodiment 1；
Fig. 8 is the diagrammatic cross-section of frost-cracking-preventing component in embodiment 2；
Fig. 9 is the sectional schematic diagram of the antifreeze driffractive ring in embodiment 2.
In figure：100, watchcase；110, water inlet pipe；120, outlet pipe；130, installation cavity；140, upper installing port；150, under
Erection joint；160, lower installing port；170, isolation board；171, positioning through hole；172, the first fan-shaped pylone；173, second is fan-shaped logical
Hole；174, position limiting convex ring；175, spacing projection；180, impeller mounting plate；181, center drum；182, supporting beam；183, it supports
Annulus；184, support plate；185, positioning counterbore；186, the first locating slot；187, the second locating slot；188, structure through-hole；189、
Circular hole；190, thimble axle sleeve；191, installing blind；200, impeller assembly；210, impeller；220, lower thimble；300, water meter counts
Device；310, seal cover board；400, frost-cracking-preventing component；410, closing cap；411, frost-cracking-preventing cavity；412, leak detection counterbore；412a、
Straight hole；412b, taper hole；413, spacing ring；414, annular groove is installed；420, seal disc；421, the first closure gasket groove；422, first is close
Seal；423, locating slot；424, the second closure gasket groove；425, the second sealing ring；430, conical compression spring；440, third is close
Seal；450, leak detection button；451, sealing inclined-plane；460, elastic pressing disc；461, permeable through-hole；462, piece is compressed；463, permeable
Slot；500, antifreeze driffractive ring；510, annular water-soluble film；520, alcohol.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment 1：
Refering to attached drawing 1, a kind of down-mounting type preventing frostbite water meter, including watchcase 100, be installed in watchcase 100 impeller assembly 200,
The water meter counter 300 that is correspondingly arranged with impeller assembly 200 and the frost-cracking-preventing component 400 for being installed on 100 lower end of watchcase.
Refering to attached drawing 1 and attached drawing 3, watchcase 100 has water inlet pipe 110, outlet pipe 120, is located at water inlet pipe 110 and outlet pipe
Between 120 and interconnected installation cavity 130.Watchcase 100 is provided with upper installing port 140 in the upper end of installation cavity 130, and
The lower end of installation cavity 130 is provided with lower erection joint 150 and the lower installing port 160 at lower erection joint 150.Its
In, impeller assembly 200, water meter counter 300 are sequentially loaded into from lower installing port 160 in the installation cavity 130 of watchcase 100, are prevented
Bursting by freezing component 400 is mounted on lower erection joint 150 from bottom to up.
The isolation board that watchcase 100 has the lower erection joint 150 of isolation and installation cavity 130 and is made into integration with watchcase 100
170.There are one positioning through hole 171 for setting at the center of isolation board 170, and are offered through its upper and lower end face on isolation board 170
First through hole group.In the present embodiment, first through hole group includes positioned inside and using the center of isolation board 170 as center of circle circumferential direction
It the first fan-shaped pylone 172 for being evenly arranged and is also circumferentially uniformly arranged as the center of circle using the center of isolation board 170 positioned at outside
Second fan-shaped pylone 173.Wherein, upper surface of the isolation board 170 between the first fan-shaped pylone 172 and the second fan-shaped pylone 173
It also sets up there are one position limiting convex ring 174, and is also provided in the edge of positioning through hole 171 that there are one spacing projections 175.
Refering to attached drawing 3, attached drawing 4 and attached drawing 5, watchcase 100 is also equipped with an impeller mounting plate at the top of isolation board 170
180.Impeller mounting plate 180 includes center drum 181, the supporting beam 182 being radially disposed on 181 lateral wall of center drum, connects
Connect the support annulus 183 at 182 middle part of supporting beam and the support plate 184 positioned at 182 outside of adjacent supports beam.Wherein, center circle
Cylinder 181 has the positioning counterbore 185 with 171 face of positioning through hole, and the bottom of center drum 181 is offered along positioning counterbore 185
For the first locating slot 186 that spacing projection 175 is inserted into, supporting beam 182 has the second locating slot being caught in for position limiting convex ring 174
187。
Impeller mounting plate 180 is further opened with the second sets of vias through its upper and lower end face.Second sets of vias includes being formed in
Center drum 181, supporting beam 182, support annulus 183 and support plate 184 between structure through-hole 188 and be uniformly opened in branch
Circular hole 189 on fagging 184.
By the setting of first through hole group and the second sets of vias, ensure that the water of intracavitary in installation can smoothly enter into lower peace
It fills in head, and acts on frost-cracking-preventing component 400（Refering to attached drawing 1）On.
Refering to attached drawing 1 and attached drawing 2, watchcase 100 is also equipped in positioning counterbore 185 while being inserted into 185 He of positioning counterbore
The thimble axle sleeve 190 of positioning through hole 171, opens up that there are one installing blinds 191 at the top center of thimble axle sleeve 190.
Impeller assembly 200 includes impeller 210 and the lower thimble 220 for being supported in 210 lower end of impeller.Wherein, lower thimble 220 is pacified
The rotation of impeller 210 is realized in the installing blind 191 of thimble axle sleeve 190.
Watchcase 100 is also equipped with the seal cover board 310 for closing the lid of upper installing port 140 of 130 upper end of installation cavity, water meter
Number device 300 is mounted on the upper end of seal cover board 310, and is correspondingly arranged with impeller assembly 200.
Refering to attached drawing 5, frost-cracking-preventing component 400 includes the closing cap 410 being tightly connected with lower erection joint 150, sealing
Sliding and the seal disc 420 in closing cap 410 and the bullet being supported between 410 inner bottom surface of closing cap and seal disc 420
Property part.
Closing cap 410 has the frost-cracking-preventing cavity 411 of upper end opening, and lower installation is inserted at the top of closing cap 410
It is threadedly coupled cooperation in connector 150 and with lower erection joint 150.The lateral wall of closing cap 410 is provided with and lower erection joint
The third sealing ring 440 that 150 inner walls abut.
Refering to attached drawing 5 and attached drawing 6, leak detection counterbore 412, closing cap are further opened at the bottom centre of closing cap 410
410 are also equipped with leak detection assembly at leak detection counterbore 412, and leak detection assembly includes the inspection being inserted into from top to bottom in leak detection counterbore 412
It leaks button 450 and 450 top of leak detection button is pressed on by elastic component and the leak detection sealing of button 450 is pressed on counterbore 412 of hunting leak
Interior elastic pressing disc 460.
Wherein, leak detection counterbore 412 includes the taper hole 412b of cylindrical straight hole 412a and reverse taper successively from bottom to up,
Leak detection button 450 has the sealing inclined-plane 451 for fitting in taper hole 412b inner walls, and the lower end for button 450 of hunting leak and straight hole 412a
Madial wall fits.
Refering to attached drawing 7, the center of elastic pressing disc 460 offers permeable through-hole 461 and circumferentially equal at 461 edge of permeable through-hole
It is even to offer multiple permeable slots 463 being radially arranged.Elastic pressing disc 460 forms the button that will hunt leak between adjacent permeable slot 463
450 are pressed on leak detection counterbore 412 to realize leak detection button 450 and the sealing of leak detection counterbore 412 and flexible compression piece 462.
In the present embodiment, elastic pressing disc 460 is opened up there are six permeable slot, i.e. elastic pressing disc 460 has six compression pieces 462.
Refering to attached drawing 5 and attached drawing 6, in order to promote the limit strength to elastic pressing disc 460, the inner bottom surface of closing cap 410
It is equipped with the spacing ring 413 that madial wall fits with 460 side of elastic pressing disc in the outside of leak detection counterbore 412.
When needing to detect whether the sealed connection between seal disc 420 and closing cap 410 fails, it is only necessary to push up
Leak detection button 450, if outflow water in leak detection counterbore 412, proves to seal no longer valid；If not there are flowing out, prove to seal
Do not fail.
The side wall of seal disc 420 circumferentially offer the first closure gasket groove 421 and be installed in the first closure gasket groove 421 and with
The first sealing ring 422 that 410 inner wall of closing cap abuts, the bottom of seal disc 420 is offered pushes up for conical compression spring 430
The locating slot 423 that portion is put into.
Elastic component is inverted conical compression spring 430, and the coil of conical compression spring 430 being capable of mutual intussusception.
Wherein, conical compression spring 430 and closing cap 410 are also coaxial arrangement.
The operation principle of down-mounting type preventing frostbite water meter in the present embodiment is as follows：
1, the water in down-mounting type preventing frostbite water meter in installation cavity 130 freezes, and volume increases, and hydraulic pressure is caused to be promoted；
2, seal disc 420 compresses downwards conical compression spring 430 under the action of hydraulic pressure so that the promotion of hydraulic pressure is delayed
Subtract.
Embodiment 2：
The down-mounting type preventing frostbite water meter in down-mounting type preventing frostbite water meter and embodiment 1 in the present embodiment, in addition to 420 He of seal disc
The inner sidewall structure of closing cap 410 is different outer, the structure phase of down-mounting type preventing frostbite water meter of remaining structure and in embodiment 1
Together.
Refering to attached drawing 8 and attached drawing 9, the inner circumferential of the closing cap 410 in the present embodiment is equipped with installation annular groove 414 and peace
Loaded on the antifreeze driffractive ring 500 in installation annular groove 414.Wherein, antifreeze driffractive ring 500 includes annular water-soluble film 510 and is filled in
Alcohol 520 in annular water-soluble film 510.When down-mounting type preventing frostbite water meter does not freeze, installation annular groove 414 is located at seal disc
420 lower section.
The circumferential direction of seal disc 420 opens up there are two the second closure gasket groove 424 and is respectively arranged in two the second closure gasket grooves
The second sealing ring 425 in 424, the spacing of adjacent second closure gasket groove 424 are more than the width of installation annular groove 414.
The operation principle of down-mounting type preventing frostbite water meter in the present embodiment is as follows：
1, the water in down-mounting type preventing frostbite water meter in installation cavity 130 freezes, and volume increases, and hydraulic pressure is caused to be promoted；
2, seal disc 420 compresses downwards conical compression spring 430 under the action of hydraulic pressure so that the promotion of hydraulic pressure is delayed
Subtract；
3, antifreeze driffractive ring 500 is contacted with water, and annular water-soluble film 510 is dissolved with water contact start, and the outflow of alcohol 520 is dissolved in water
In, the solidification point of water is reduced, the solidification of water is alleviated.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Claims (10)
1. a kind of down-mounting type preventing frostbite water meter, including watchcase (100), be installed in watchcase (100) impeller assembly (200), with
The water meter counter (300) that impeller assembly (200) is correspondingly arranged, the watchcase (100), which has, installs for impeller assembly (200)
Installation cavity (130), which is characterized in that the lower end of the watchcase (100) offers the lower installation communicated with installation cavity (130)
Mouth (160) and the frost-cracking-preventing component (400) being seal-installed at lower installing port (160), the frost-cracking-preventing component (400) include
Closing cap (410), sealing sliding and the seal disc (420) in closing cap (410) being tightly connected with lower installing port (160)
And it is supported in the elastic component between closing cap (410) inner bottom surface and seal disc (420).
2. a kind of down-mounting type preventing frostbite water meter according to claim 1, which is characterized in that the elastic component is inverted circle
The coil of conical compression spring (430), the conical compression spring (430) being capable of mutual intussusception.
3. a kind of down-mounting type preventing frostbite water meter according to claim 2, which is characterized in that the side of the seal disc (420)
Wall circumferentially offer the first closure gasket groove (421) and be installed in the first closure gasket groove (421) and with closing cap (410) inner wall
The bottom of the first sealing ring (422) abutted, the seal disc (420) is offered for being put at the top of conical compression spring (430)
The locating slot (423) entered.
4. a kind of down-mounting type preventing frostbite water meter according to claim 1, which is characterized in that the closing cap (410)
Bottom is further opened with leak detection counterbore (412), and the closing cap (410) is also equipped with leak detection assembly at leak detection counterbore (412),
The leak detection assembly includes the leak detection button (450) being inserted into leak detection counterbore (412) from top to bottom and is pressed on inspection by elastic component
At the top of leakage button (450) and the button (450) that will hunt leak seals the elastic pressing disc (460) being pressed in leak detection counterbore (412).
5. a kind of down-mounting type preventing frostbite water meter according to claim 4, which is characterized in that the elastic pressing disc (460)
Center offer permeable through-hole (461) and permeable through-hole (461) edge be circumferentially uniformly provided with it is multiple be radially arranged it is permeable
Slot, the elastic pressing disc (460) formed between adjacent permeable slot will leak detection button (450) be pressed on leak detection counterbore (412) with
It realizes leak detection button (450) and leak detection counterbore (412) seals and flexible compression piece (462).
6. a kind of down-mounting type preventing frostbite water meter according to claim 5, which is characterized in that the closing cap (410)
Inner bottom surface is equipped with the spacing ring (413) that madial wall fits with elastic pressing disc (460) side in the outside of leak detection counterbore (412).
7. a kind of down-mounting type preventing frostbite water meter according to claim 6, which is characterized in that the leak detection counterbore (412) from
Under it is supreme include successively cylindrical straight hole (412a) and reverse taper taper hole (412b), the leak detection button (450) has
Fit in the sealing inclined-plane (451) of taper hole (412b) inner wall.
8. a kind of down-mounting type preventing frostbite water meter according to claim 1, which is characterized in that impeller assembly (200) packet
It includes impeller (210) and is supported in the lower thimble (220) of impeller (210) lower end, the watchcase (100) has the lower installing port of isolation
(160) and installation cavity (130) and center have the isolation board (170) of positioning through hole (171), the top of the isolation board (170)
Portion is fixed with impeller mounting plate (180), and the impeller mounting plate (180) has the positioning counterbore with positioning through hole (171) face
(185), the impeller mounting plate (180) is also equipped with while being inserted into positioning counterbore (185) and positioning in positioning counterbore (185)
The thimble axle sleeve (190) of through-hole (171), the thimble axle sleeve (190) has is inserted into fixed installing blind for lower thimble (220)
(191), also there is the isolation board (170) the first through hole group through its upper and lower end face, the impeller mounting plate (180) also to have
There is the second sets of vias being interconnected with first through hole group.
9. a kind of down-mounting type preventing frostbite water meter according to claim 1, which is characterized in that the closing cap (410)
The antifreeze driffractive ring (500) that inner wall is circumferentially with installation annular groove (414) and is installed in installation annular groove (414), the antifreeze driffractive ring
(500) including the alcohol (520) that annular (510) at water-soluble film and is filled in annular water-soluble film (510), work as down-mounting type
When preventing frostbite water meter does not freeze, the installation annular groove (414) is located at the lower section of seal disc (420).
10. a kind of down-mounting type preventing frostbite water meter according to claim 9, which is characterized in that the week of the seal disc (420)
To opening up, there are two the second closure gasket grooves (424) and the second sealing ring being respectively arranged in two the second closure gasket grooves (424)
(425), the spacing of adjacent second closure gasket groove (424) is more than the width of installation annular groove (414).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810925260.8A CN108680219B (en) | 2018-08-14 | 2018-08-14 | Down-loading frost crack prevention water meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810925260.8A CN108680219B (en) | 2018-08-14 | 2018-08-14 | Down-loading frost crack prevention water meter |
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| Publication Number | Publication Date |
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| CN108680219A true CN108680219A (en) | 2018-10-19 |
| CN108680219B CN108680219B (en) | 2023-10-31 |
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| CN201810925260.8A Active CN108680219B (en) | 2018-08-14 | 2018-08-14 | Down-loading frost crack prevention water meter |
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| CN106123990A (en) * | 2016-08-02 | 2016-11-16 | 杭州水表有限公司 | A kind of Anti-freezing water meter |
| CN208536954U (en) * | 2018-08-14 | 2019-02-22 | 宁波时代仪表有限公司 | A kind of down-mounting type preventing frostbite water meter |
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|---|---|---|---|---|
| KR20010069346A (en) * | 2001-03-12 | 2001-07-25 | 정대흥 | The winter-sowing prevention apparatus of water meter |
| US20050039806A1 (en) * | 2001-11-22 | 2005-02-24 | Junichi Nakayama | Pressure release valve |
| KR20060005673A (en) * | 2004-07-13 | 2006-01-18 | 주장식 | A water gauge for preventing freeze-break |
| CN201032458Y (en) * | 2007-03-09 | 2008-03-05 | 吴福康 | Anti-frozen crack watermeter |
| CN202974365U (en) * | 2012-11-23 | 2013-06-05 | 卓旦春 | Press-type measuring head |
| KR101301965B1 (en) * | 2013-03-21 | 2013-08-30 | 유수진 | A preventing frozen apparatus for a water meter |
| CN104315147A (en) * | 2014-09-03 | 2015-01-28 | 东方电气集团东风电机有限公司 | Power type contactless main shaft sealing device |
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| CN208536954U (en) * | 2018-08-14 | 2019-02-22 | 宁波时代仪表有限公司 | A kind of down-mounting type preventing frostbite water meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108680219B (en) | 2023-10-31 |
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