CN108680219B - Down-loading frost crack prevention water meter - Google Patents
Down-loading frost crack prevention water meter Download PDFInfo
- Publication number
- CN108680219B CN108680219B CN201810925260.8A CN201810925260A CN108680219B CN 108680219 B CN108680219 B CN 108680219B CN 201810925260 A CN201810925260 A CN 201810925260A CN 108680219 B CN108680219 B CN 108680219B
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- sealing
- hole
- crack prevention
- frost crack
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 230000002265 prevention Effects 0.000 title claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 112
- 238000009434 installation Methods 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims description 60
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 description 16
- 238000005192 partition Methods 0.000 description 6
- 230000008014 freezing Effects 0.000 description 4
- 208000001034 Frostbite Diseases 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005728 strengthening Methods 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 lower-mounted frost crack prevention water meter, which solves the problem that the water meter at the present stage does not have frost crack prevention capability. The utility model provides a water gauge is split in anti-frost, includes the watchcase, installs the impeller subassembly in the watchcase, corresponds the water gauge counter that sets up with the impeller subassembly, the watchcase has the installation cavity that supplies the impeller subassembly to install, the lower extreme of watchcase is seted up with the communicating lower installation mouth of installation cavity and is sealed the anti-frost subassembly of installing in lower installation mouth department, the anti-frost subassembly includes with lower installation mouth sealing connection's seal shroud, seal slip and seal cover in the seal disk and support the elastic component between bottom surface and seal disk in the seal shroud, the anti-frost water gauge of the anti-frost of the dress of down can reduce the water in the water gauge and freeze the back and cause the harm to the surface case to the life of the anti-frost of the dress formula water gauge down is prolonged.
Description
Technical Field
The invention relates to a water meter, in particular to a lower-mounted frost crack prevention water meter.
Background
At present, the water meter used conventionally generally has no frost crack prevention structure, when the ambient temperature reduces the freezing point of water, the water in the water meter is frozen into ice, so that the volume is increased, the pressure in the inner cavity of the water meter is increased, the cover and the body of the water meter are damaged, and the service life of the water meter is seriously influenced.
Disclosure of Invention
The invention aims to provide a lower-mounted anti-frost crack water meter which can reduce damage to a surface shell after water in the water meter is frozen, so that the service life of the lower-mounted anti-frost crack water meter is prolonged.
The technical aim of the invention is realized by the following technical scheme:
the utility model provides a water gauge is split in anti-freezing of lower dress formula, includes the watchcase, installs in the watchcase the impeller subassembly, corresponds the water gauge counter that sets up with the impeller subassembly, the watchcase has the installation cavity that supplies the impeller subassembly to install, the lower extreme of watchcase seted up with the communicating lower installing port of installation cavity and sealed the anti-freezing subassembly of installing in lower installing port department, the anti-freezing subassembly includes with lower installing port sealing connection's seal shroud, seal slip and seal disc in the seal shroud and support the elastic component between bottom surface and seal disc in the seal shroud.
By adopting the technical scheme, the working principle of the frost crack prevention assembly is as follows: after the water in the lower-loading anti-frost-crack water meter is frozen, the volume of the ice is larger than that of the water, so that the water pressure in the installation cavity rises, the sealing disc is compressed downwards to compress the elastic piece, the water pressure in the installation cavity can be kept constant, and the probability that the watchcase is damaged due to freezing of the water in the installation cavity is reduced. Therefore, the frost crack prevention assembly can reduce damage to the surface shell after water in the water meter is frozen, and prolong the service life of the lower-mounted frost crack prevention water meter.
Meanwhile, the setting of the anti-frost crack assembly can buffer the water pressure stirring in the lower-mounted anti-frost crack water meter, and the influence on the rotation counting of the impeller assembly and the water meter counter caused by stirring of the water pressure can be effectively reduced through the cooperation of the elastic piece and the sealing disc.
As a further development of the invention, the elastic element is an inverted conical compression spring, the coils of which can telescope into one another.
By adopting the technical scheme, the elastic piece can have a larger compression stroke due to the arrangement of the conical compression spring, and the coils of the conical compression spring can be mutually nested, so that the conical compression spring can be compressed into a disc when being compressed to the extreme.
Meanwhile, the conical compression spring is more stable for supporting the sealing disc, so that the sealing disc can slide up and down in the sealing cover more stably.
As a further improvement of the invention, a first sealing ring groove and a first sealing ring which is arranged in the first sealing ring groove and is in butt joint with the inner wall of the sealing cover are circumferentially arranged on the side wall of the sealing disk, and a positioning groove for placing the top of the conical compression spring is arranged at the bottom of the sealing disk.
By adopting the technical scheme, the arrangement of the first sealing ring groove and the first sealing ring in the sealing disc realizes the up-down sealing sliding structure of the sealing disc in the sealing cover cap. Meanwhile, the positioning groove can further position the conical compression spring, so that the conical compression spring supports the sealing disc more stably.
As a further improvement of the invention, the bottom of the sealing cover cap is also provided with a leakage detection counter bore, the sealing cover cap is also provided with a leakage detection assembly at the leakage detection counter bore, and the leakage detection assembly comprises a leakage detection button inserted into the leakage detection counter bore from top to bottom and an elastic pressing disc pressed on the top of the leakage detection button by an elastic piece and used for sealing and pressing the leakage detection button in the leakage detection counter bore.
By adopting the technical scheme, the lower-mounted frost crack prevention water meter is a long-term practical component, so that the inside frost crack prevention component needs to be periodically detected to determine whether the frost crack prevention component fails. By pressing the leak detection button upwards, if water flows out of the leak detection counter bore, the sealing between the sealing disc and the sealing cover cap is proved to be invalid, and the sealing element between the sealing disc and the sealing cover cap needs to be replaced. The leak detection mode of the leak detection assembly is simple and convenient, and compared with the leak detection mode of detaching the sealing cover cap, the leak detection mode has higher efficiency.
As a further improvement of the invention, the center of the elastic pressure disk is provided with a water permeable through hole, a plurality of radially arranged water permeable grooves are uniformly formed on the periphery of the water permeable through hole, and a pressing piece which is used for pressing the leak detection button on the leak detection counter bore between adjacent water permeable grooves so as to realize the sealing of the leak detection button and the leak detection counter bore and has elasticity is formed on the elastic pressure disk.
Through adopting above-mentioned technical scheme, the pressure to leak hunting button is comparatively even to compact structure and the pressure of the elastic pressure disk of above-mentioned structure, when leak hunting personnel upwards presses the leak hunting button, leak hunting button and elastic pressure disk take place the probability of skew lower.
As a further improvement of the invention, the inner bottom surface of the sealing cover is provided with a limiting ring with the inner side wall attached to the side surface of the elastic pressure disk at the outer side of the leak detection counter bore.
Through adopting above-mentioned technical scheme, setting up of spacing ring can be further spacing to the elastic pressure disk, when leak hunting personnel upwards presses the leak hunting button, has further reduced the probability that the elastic pressure disk takes place the skew.
As a further improvement of the invention, the leak detection counter bore sequentially comprises a cylindrical straight hole and an inverted conical frustum-shaped conical hole from bottom to top, and the leak detection button is provided with a sealing inclined plane attached to the inner wall of the conical hole.
By adopting the technical scheme, the sealing effect between the leakage detection counter bore and the leakage detection button can be enhanced by the arrangement of the taper hole and the sealing inclined plane. Meanwhile, the leak detector can jack up the leak detection button conveniently, and if water accumulation exists in the sealing cover, the water accumulation can flow out of the leak detection counter bore conveniently.
As a further improvement of the invention, the impeller assembly comprises an impeller and a lower thimble supported at the lower end of the impeller, the watchcase is provided with a separation plate for separating a lower mounting opening from a mounting cavity and having a positioning through hole in the center, the top of the separation plate is fixedly provided with an impeller mounting plate, the impeller mounting plate is provided with a positioning counter bore opposite to the positioning through hole, the impeller mounting plate is also provided with a thimble shaft sleeve which is inserted into the positioning counter bore and the positioning through hole at the same time, the thimble shaft sleeve is provided with a mounting blind hole for inserting and fixing the lower thimble, the separation plate is also provided with a first through hole group penetrating through the upper end surface and the lower end surface of the separation plate, and the impeller mounting plate is also provided with a second through hole group communicated with the first through hole group.
Through adopting above-mentioned technical scheme, the effect of above-mentioned division board is mainly used for strengthening the structural strength of watchcase, can support the impeller backup pad simultaneously. The cooperation of the positioning through hole of the isolation plate, the positioning counter bore of the impeller supporting plate and the thimble shaft sleeve realizes the support of the lower thimble, namely the support of the impeller assembly is completed, so that the impeller assembly can rotate in the installation cavity. Meanwhile, the first through hole group on the isolation plate and the second through hole group of the impeller mounting plate can ensure that water in the mounting cavity can normally compress the sealing disc, so that the frost crack prevention function of the lower-mounted frost crack prevention water meter is realized.
As a further improvement of the invention, the inner wall of the sealing cover is circumferentially provided with a mounting ring groove and an anti-freezing ring arranged in the mounting ring groove, the anti-freezing ring comprises an annular water-soluble film and alcohol filled in the annular water-soluble film, and the mounting ring groove is positioned below the sealing disc when the low-mounted anti-freezing water meter is not frozen.
By adopting the technical scheme, after the water in the lower-loading anti-freezing and anti-cracking water meter is frozen, the sealing disc compresses the elastic piece to descend, so that the annular water-soluble film of the anti-freezing and anti-cracking ring is contacted with water and dissolved, and alcohol in the annular water-soluble film enters the water.
As a further improvement of the invention, two second sealing ring grooves and second sealing rings respectively arranged in the two second sealing ring grooves are arranged in the circumferential direction of the sealing disk, and the distance between adjacent second sealing ring grooves is larger than the width of the mounting ring groove.
By adopting the technical scheme, the second sealing ring groove and the second sealing ring on the sealing disc are arranged, so that the sealing disc can also maintain a sealing state when passing through the mounting ring groove.
In summary, the invention has the following beneficial effects:
1. the utility model provides a water gauge is prevented frostbite by lower dress formula, includes watchcase, impeller subassembly, water gauge counter and prevents frostbite and split the subassembly, prevents frostbite and splits the subassembly and include sealing shroud, sealing disk and elastic component, when the water in the installation cavity of watchcase takes place to solidify, the volume increases, the water pressure in the installation cavity rises to compress sealing disk and elastic component, thereby effectively reduced the probability that the watchcase was damaged;
2. by arranging the leak detection assembly, a inspector can conveniently review the undermount frost crack prevention water meter at regular intervals, and the problem of whether the seal between the sealing disc and the sealing cover fails or not is detected;
3. through setting up the frost crack ring, after water and the contact of frost crack ring, alcohol in the annular water-soluble film of frost crack ring will release, reduces the freezing point of water to alleviate the probability that the frost crack water gauge of lower dress type takes place to freeze, also can promote simultaneously and reduce the probability that the frost crack water gauge of lower dress type takes place to burst.
Drawings
FIG. 1 is a schematic cross-sectional view of a bottom-loading frost crack prevention water meter according to example 1;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic cross-sectional structure of a wristwatch case in example 1;
FIG. 4 is a schematic view showing the construction of a blade wheel mounting plate in embodiment 1;
FIG. 5 is a schematic view showing the structure of the frost crack prevention assembly according to example 1 when it is mounted to the lower mounting joint of the case;
FIG. 6 is an enlarged view at B in FIG. 5;
FIG. 7 is a schematic view showing the structure of an elastic platen in example 1;
FIG. 8 is a schematic cross-sectional view of the frost crack prevention assembly of example 2;
FIG. 9 is a schematic cross-sectional view of an antifreeze ring in accordance with the embodiment 2.
In the figure: 100. a watch case; 110. a water inlet pipe; 120. a water outlet pipe; 130. a mounting cavity; 140. an upper mounting port; 150. a lower mounting joint; 160. a lower mounting port; 170. a partition plate; 171. positioning the through hole; 172. a first fan-shaped through hole; 173. a second fan-shaped through hole; 174. a limit convex ring; 175. limiting convex columns; 180. an impeller mounting plate; 181. a central cylinder; 182. a support beam; 183. a support ring; 184. a support plate; 185. positioning the counter bore; 186. a first positioning groove; 187. a second positioning groove; 188. a structural through hole; 189. a round hole; 190. a thimble shaft sleeve; 191. installing a blind hole; 200. an impeller assembly; 210. an impeller; 220. a lower thimble; 300. a water meter counter; 310. sealing the cover plate; 400. an anti-frost crack assembly; 410. a sealing cover; 411. an anti-frost crack cavity; 412. leak detection counter bore; 412a, a straight hole; 412b, taper holes; 413. a limiting ring; 414. installing a ring groove; 420. a sealing plate; 421. a first seal ring groove; 422. a first seal ring; 423. a positioning groove; 424. a second seal ring groove; 425. a second seal ring; 430. a conical compression spring; 440. a third seal ring; 450. a leak detection button; 451. sealing inclined planes; 460. an elastic pressure plate; 461. a water permeable through hole; 462. a compacting sheet; 463. a water-permeable tank; 500. anti-freezing ring; 510. an annular water-soluble film; 520. alcohol.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
referring to fig. 1, a bottom-mounted frost crack prevention water meter includes a meter case 100, an impeller assembly 200 installed in the meter case 100, a water meter counter 300 disposed corresponding to the impeller assembly 200, and a frost crack prevention assembly 400 installed at a lower end of the meter case 100.
Referring to fig. 1 and 3, the case 100 has a water inlet pipe 110, a water outlet pipe 120, and a mounting cavity 130 between the water inlet pipe 110 and the water outlet pipe 120 and communicating with each other. The case 100 is provided with an upper mounting port 140 at an upper end of the mounting cavity 130, and a lower mounting joint 150 and a lower mounting port 160 at the lower mounting joint 150 at a lower end of the mounting cavity 130. The impeller assembly 200 and the water meter counter 300 are sequentially installed in the installation cavity 130 of the watchcase 100 from the lower installation port 160, and the frost crack prevention assembly 400 is installed on the lower installation joint 150 from bottom to top.
The case 100 has a spacer 170 which separates the lower mounting joint 150 and the mounting cavity 130 and is integrally formed with the case 100. A positioning through hole 171 is provided at the center of the partition plate 170, and a first through hole group penetrating the upper and lower end surfaces of the partition plate 170 is provided on the partition plate 170. In the present embodiment, the first through hole group includes first fan-shaped through holes 172 that are located on the inner side and are uniformly arranged circumferentially around the center of the partition plate 170, and second fan-shaped through holes 173 that are located on the outer side and are also uniformly arranged circumferentially around the center of the partition plate 170. Wherein, the upper surface of the isolation plate 170 between the first fan-shaped through hole 172 and the second fan-shaped through hole 173 is also provided with a limiting convex ring 174, and a limiting convex column 175 is also provided at the edge of the positioning through hole 171.
Referring to fig. 3, 4 and 5, the case 100 further mounts an impeller mounting plate 180 on top of the spacer plate 170. The impeller mounting plate 180 includes a central cylinder 181, support beams 182 radially provided on the outer side wall of the central cylinder 181, support rings 183 connecting the middle portions of the support beams 182, and support plates 184 located outside the adjacent support beams 182. The central cylinder 181 has a positioning counter bore 185 opposite to the positioning through hole 171, a first positioning groove 186 for inserting the limiting boss 175 is formed at the bottom of the central cylinder 181 along the positioning counter bore 185, and the supporting beam 182 has a second positioning groove 187 for clamping the limiting collar 174.
The impeller mounting plate 180 is also provided with a second through hole group penetrating through the upper and lower end surfaces thereof. The second through-hole group includes a structural through-hole 188 formed between the center cylinder 181, the support beam 182, the support ring 183, and the support plate 184, and circular holes 189 uniformly opened on the support plate 184.
Through the arrangement of the first through hole group and the second through hole group, water in the installation cavity can be ensured to smoothly enter the lower installation head and act on the frost crack prevention assembly 400 (refer to fig. 1).
Referring to fig. 1 and 2, the watch case 100 is further provided with a thimble sleeve 190 inserted into the positioning counter bore 185 and the positioning through hole 171, and a mounting blind hole 191 is formed in the top center of the thimble sleeve 190.
The impeller assembly 200 includes an impeller 210 and a lower ejector pin 220 supported at a lower end of the impeller 210. Wherein, the lower thimble 220 is arranged in the installation blind hole 191 of the thimble shaft sleeve 190 to realize the rotation of the impeller 210.
The case 100 is further provided with a sealing cover 310 covering the upper mounting opening 140 of the upper end of the mounting cavity 130, and the water meter counter 300 is mounted on the upper end of the sealing cover 310 and is disposed corresponding to the impeller assembly 200.
Referring to fig. 5, the frost crack prevention assembly 400 includes a sealing cap 410 sealingly coupled to the lower mounting joint 150, a sealing disk 420 sealing the sliding and sealing cap 410, and an elastic member supported between an inner bottom surface of the sealing cap 410 and the sealing disk 420.
The sealing cap 410 has an anti-frost crack cavity 411 opened at an upper end, and a top of the sealing cap 410 is inserted into the lower mounting joint 150 and is screw-coupled with the lower mounting joint 150. The outer side wall of the sealing cap 410 is provided with a third sealing ring 440 abutting against the inner wall of the lower mounting joint 150.
Referring to fig. 5 and 6, a leak detection counterbore 412 is further formed in the bottom center of the sealing cap 410, and a leak detection assembly is further mounted on the sealing cap 410 at the leak detection counterbore 412, wherein the leak detection assembly comprises a leak detection button 450 inserted into the leak detection counterbore 412 from top to bottom and an elastic pressing disc 460 pressed on the top of the leak detection button 450 by an elastic member and sealing and pressing the leak detection button 450 in the leak detection counterbore 412.
The leak detection counter bore 412 sequentially comprises a cylindrical straight bore 412a and an inverted conical table-shaped conical bore 412b from bottom to top, the leak detection button 450 is provided with a sealing inclined surface 451 attached to the inner wall of the conical bore 412b, and the lower end of the leak detection button 450 is attached to the inner wall of the straight bore 412 a.
Referring to fig. 7, a water permeable through hole 461 is formed in the center of the elastic pressing plate 460, and a plurality of radially arranged water permeable grooves 463 are uniformly formed in the circumferential direction of the edge of the water permeable through hole 461. The elastic pressing disc 460 forms a pressing piece 462 with elasticity between the adjacent water-permeable grooves 463 to press the leak detection button 450 against the leak detection counterbore 412 to seal the leak detection button 450 and the leak detection counterbore 412. In this embodiment, the elastic pressing plate 460 is provided with six water-permeable grooves, that is, the elastic pressing plate 460 has six pressing pieces 462.
Referring to fig. 5 and 6, in order to improve the limiting strength of the elastic pressure plate 460, the inner bottom surface of the sealing cover 410 is provided with a limiting ring 413, the inner side wall of which is attached to the side surface of the elastic pressure plate 460, at the outer side of the leak detection counter bore 412.
When it is required to detect whether the sealing connection between the sealing disk 420 and the sealing cap 410 fails, only the leak detection button 450 needs to be pushed upwards, and if the leak detection counterbore 412 flows out of the water, the seal is proved to have failed; if no water flows out, it is demonstrated that the seal has not failed.
The side wall of the sealing disk 420 is circumferentially provided with a first sealing ring groove 421 and a first sealing ring 422 which is installed in the first sealing ring groove 421 and is abutted against the inner wall of the sealing cover 410, and the bottom of the sealing disk 420 is provided with a positioning groove 423 for placing the top of the conical compression spring 430.
The elastic member is an inverted conical compression spring 430, and coils of the conical compression spring 430 can telescope into each other. Wherein the conical compression spring 430 and the sealing cap 410 are also coaxially arranged.
The working principle of the lower-mounted frost crack prevention water meter in the embodiment is as follows:
1. the water in the installation cavity 130 of the lower-mounted frost crack prevention water meter is frozen, the volume is increased, and the water pressure is increased;
2. the sealing disk 420 compresses the conical compression spring 430 downward under the force of the water pressure so that the elevation of the water pressure is relieved.
Example 2:
the lower-mount frost crack prevention water meter in this embodiment and the lower-mount frost crack prevention water meter in embodiment 1 are identical to those in embodiment 1 except that the inner sidewall structures of the sealing disk 420 and the sealing cap 410 are different.
Referring to fig. 8 and 9, the inner circumference of the sealing cap 410 in the present embodiment is provided with a mounting ring groove 414 and an anti-freezing ring 500 mounted in the mounting ring groove 414. Wherein the anti-freezing ring 500 includes an annular water-soluble film 510 and alcohol 520 filled in the annular water-soluble film 510. When the lower freeze crack preventing water meter is not frozen, the mounting ring groove 414 is located below the sealing disk 420.
Two second seal ring grooves 424 and second seal rings 425 respectively installed in the two second seal ring grooves 424 are formed in the circumferential direction of the seal disc 420, and the distance between adjacent second seal ring grooves 424 is larger than the width of the installation ring groove 414.
The working principle of the lower-mounted frost crack prevention water meter in the embodiment is as follows:
1. the water in the installation cavity 130 of the lower-mounted frost crack prevention water meter is frozen, the volume is increased, and the water pressure is increased;
2. the sealing disk 420 compresses the conical compression spring 430 downward under the action of the water pressure, so that the lifting of the water pressure is relieved;
3. the anti-freezing and anti-cracking ring 500 contacts with water, the annular water-soluble film 510 contacts with water to start to dissolve, and the alcohol 520 flows out to be dissolved in the water, so that the freezing point of the water is lowered, and the solidification of the water is relieved.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (7)
1. The utility model provides a lower dress formula frost crack prevention water gauge, includes watchcase (100), installs impeller subassembly (200) in watchcase (100), corresponds water gauge counter (300) that sets up with impeller subassembly (200), watchcase (100) have the installation cavity (130) that supply impeller subassembly (200) to install, characterized in that, install lower mounting hole (160) that communicate with each other with installation cavity (130) and seal and install frost crack prevention subassembly (400) in lower mounting hole (160) department under the watchcase (100), frost crack prevention subassembly (400) include with lower mounting hole (160) sealing cover (410) sealing connection, sealing slip and sealing cover (410) in sealing disk (420) and support the elastic component between sealing cover (410) interior bottom surface and sealing disk (420); the elastic piece is an inverted conical compression spring (430), and coils of the conical compression spring (430) can be mutually nested; the bottom of the sealing cover cap (410) is also provided with a leakage detection counter bore (412), the sealing cover cap (410) is also provided with a leakage detection assembly at the leakage detection counter bore (412), and the leakage detection assembly comprises a leakage detection button (450) inserted into the leakage detection counter bore (412) from top to bottom and an elastic pressing disc (460) pressed on the top of the leakage detection button (450) by an elastic piece and used for sealing and pressing the leakage detection button (450) in the leakage detection counter bore (412); the center of elastic pressing disc (460) has seted up permeable through hole (461) and has evenly seted up a plurality of radial water permeating grooves that set up in permeable through hole (461) border circumference, elastic pressing disc (460) form between adjacent water permeating groove to compress tightly leak hunting button (450) at leak hunting counter bore (412) in order to realize leak hunting button (450) and leak hunting counter bore (412) sealed and have elastic compress tightly piece (462).
2. The under-mounted frost crack prevention water meter according to claim 1, wherein a first sealing ring groove (421) and a first sealing ring (422) which is installed in the first sealing ring groove (421) and is abutted against the inner wall of the sealing cover (410) are circumferentially arranged on the side wall of the sealing disc (420), and a positioning groove (423) for placing the top of the conical compression spring (430) is formed in the bottom of the sealing disc (420).
3. The undermount frost crack prevention water meter as set forth in claim 1, wherein an inner bottom surface of the sealing cover (410) is provided with a limiting ring (413) having an inner side wall attached to a side surface of the elastic pressure plate (460) at an outer side of the leak detection counter bore (412).
4. A bottom-mounted frost crack prevention water meter as claimed in claim 3, wherein the leak detection counterbore (412) comprises a cylindrical straight hole (412 a) and a reverse conical frustum-shaped conical hole (412 b) from bottom to top, and the leak detection button (450) has a sealing inclined surface (451) attached to an inner wall of the conical hole (412 b).
5. The under-mounted frost crack prevention water meter according to claim 1, wherein the impeller assembly (200) comprises an impeller (210) and a lower thimble (220) supported at the lower end of the impeller (210), the watchcase (100) is provided with a separation plate (170) which separates a lower mounting opening (160) from a mounting cavity (130) and is provided with a positioning through hole (171) in the center, an impeller mounting plate (180) is fixed at the top of the separation plate (170), the impeller mounting plate (180) is provided with a positioning counter bore (185) opposite to the positioning through hole (171), the impeller mounting plate (180) is further provided with a thimble shaft sleeve (190) which is inserted into the positioning counter bore (185) and the positioning through hole (171) at the same time, the thimble shaft sleeve (190) is provided with a mounting blind hole (191) for inserting and fixing the lower thimble (220), the separation plate (170) is further provided with a first through hole group penetrating through the upper end face and the lower end face of the impeller mounting plate (180) is also provided with a second through hole group which is mutually communicated with the first through hole group.
6. The under-mounted frost crack prevention water meter according to claim 1, wherein an installation ring groove (414) and an frost crack prevention ring (500) installed in the installation ring groove (414) are circumferentially arranged on the inner wall of the sealing cover (410), the frost crack prevention ring (500) comprises an annular water-soluble film (510) and alcohol (520) filled in the annular water-soluble film (510), and the installation ring groove (414) is positioned below the sealing disc (420) when the under-mounted frost crack prevention water meter is not frozen.
7. The undermount frost crack prevention water meter of claim 6, wherein two second seal ring grooves (424) and second seal rings (425) respectively installed in the two second seal ring grooves (424) are formed in the circumferential direction of the seal disc (420), and the distance between adjacent second seal ring grooves (424) is larger than the width of the installation ring groove (414).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810925260.8A CN108680219B (en) | 2018-08-14 | 2018-08-14 | Down-loading frost crack prevention water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810925260.8A CN108680219B (en) | 2018-08-14 | 2018-08-14 | Down-loading frost crack prevention water meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108680219A CN108680219A (en) | 2018-10-19 |
| CN108680219B true CN108680219B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810925260.8A Active CN108680219B (en) | 2018-08-14 | 2018-08-14 | Down-loading frost crack prevention water meter |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010069346A (en) * | 2001-03-12 | 2001-07-25 | 정대흥 | The winter-sowing prevention apparatus of water meter |
| KR20060005673A (en) * | 2004-07-13 | 2006-01-18 | 주장식 | A water gauge for preventing freeze-break |
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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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| WO2003044397A1 (en) * | 2001-11-22 | 2003-05-30 | Nok Corporation | Pressure release valve |
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| KR20010069346A (en) * | 2001-03-12 | 2001-07-25 | 정대흥 | The winter-sowing prevention apparatus of water meter |
| 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 |
| CN204421995U (en) * | 2015-01-22 | 2015-06-24 | 宁波时代仪表有限公司 | A kind of Anti-freezing water meter |
| CN204420116U (en) * | 2015-01-22 | 2015-06-24 | 宁波时代仪表有限公司 | A kind of seal structure of water meter |
| CN105823522A (en) * | 2016-05-06 | 2016-08-03 | 三川智慧科技股份有限公司 | Anti-freezing water meter |
| 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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| Publication number | Publication date |
|---|---|
| CN108680219A (en) | 2018-10-19 |
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