CN112857476A - Water meter and processing technology thereof - Google Patents
Water meter and processing technology thereof Download PDFInfo
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- CN112857476A CN112857476A CN202110139168.0A CN202110139168A CN112857476A CN 112857476 A CN112857476 A CN 112857476A CN 202110139168 A CN202110139168 A CN 202110139168A CN 112857476 A CN112857476 A CN 112857476A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
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- 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
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- 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
- G01F15/008—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 comprising lubricating means
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- 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
- G01F15/12—Cleaning arrangements; Filters
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- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a water meter and a processing technology thereof, comprising a meter shell, an impeller, a metering box, a defogging rod group, a lower sealing ring, meter glass and an upper sealing ring; a gear set, a connecting column and a plurality of pointers are arranged in the metering box; the demisting rod group comprises a supporting sheet, a supporting spring, a supporting rod, a first scraping rod, a second scraping rod, an upright post and a first bevel gear; a flat sliding chute is arranged below the first scraping rod; the tops of the first scraping rod and the second scraping rod contact the lower surface of the watch glass; the upright post is rotatably connected with the lower seal ring; the tail end of the supporting rod is positioned in the flat sliding groove; the areas of the inside of the watch case, which are positioned below the watch glass and above the metering box, are filled with glycerol and other preparation liquids; the defogging rod group is arranged at the bottom of the meter glass, and when the defogging device is used, the fog on the meter glass can be removed in a larger area through the movement of the first scraping rod and the second scraping rod and the supporting force of the spring and the supporting piece, so that a meter reader can accurately read the water consumption value.
Description
Technical Field
The invention belongs to the technical field of water meters, and particularly relates to a water meter and a processing technology thereof.
Background
The water meter is a meter for measuring water flow, mostly for measuring the accumulated flow of water, and generally divided into a positive displacement water meter and a speed water meter, which originate from the united kingdom, the development of the water meter has a history of nearly two hundred years, when selecting the specification of the water meter, the size and the flow range of the used flow under the normal condition should be estimated first, and then the water meter with the specification of which the common flow is closest to the value is selected as the first choice.
The wet water meter is generally used for recording water consumption in south China, the existing water meter is used in a humid environment, fog is condensed in a glass window of the water meter after the water meter is used for a period of time, so that a recorder cannot see the reading of the water meter clearly, and the work of the recorder is greatly hindered; the prior patent has the technical scheme of cleaning the mist by using a brush plate in the glass window, and the scheme has the advantages that the swinging angle is influenced by the size of the glass window due to the fact that a single brush plate swings back and forth for cleaning, the cleaning range is limited, the area where the pointer of the water meter is located cannot be completely demisted, and a reader still has great obstruction in recording.
Disclosure of Invention
The invention provides a water meter with a defogging function and a processing technology thereof in order to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a water meter comprises a meter shell, an impeller positioned in the meter shell, a metering box connected to the top of the impeller, a defogging rod group positioned above the metering box, a lower seal ring positioned outside the meter shell, meter glass fixed at the top of the meter shell, and an upper seal ring positioned at the top of the meter shell and arranged above the lower seal ring; a water inlet, a water outlet and a connecting groove are formed in the meter shell; a gear set, a connecting column and a plurality of pointers are arranged in the metering box; the defogging rod group comprises a support sheet sleeved on the connection column, a support spring sleeved on the connection column and positioned at the bottom of the support sheet, a support rod with one end sleeved on the connection column and positioned above the support sheet, a first scraping rod connected with one end of the support rod, a second scraping rod rotatably connected with one end of the first scraping rod, an upright post fixed at the other end of the second scraping rod, and a first bevel gear fixed on the upright post and positioned below the second scraping rod; a flat sliding chute is arranged below the first scraping rod; the metering box is connected with the impeller through a gear set; the water inlet is higher than the water outlet; the tops of the first scraping rod and the second scraping rod contact the lower surface of the watch glass; one end of the second scraping rod penetrates through the connecting groove; the upright post is rotatably connected with the lower seal ring; the tail end of the supporting rod is positioned in the flat sliding groove; the areas of the inside of the watch case, which are positioned below the watch glass and above the metering box, are filled with a preparation liquid such as glycerol.
The defogging rod group is arranged at the bottom of the surface glass, and when the defogging device is used, the first bevel gear is rotated by controlling parts in the lower sealing ring, so that the upright post and the second scraping rod are driven to rotate, fog on partial surface area of the surface glass is scraped, and meanwhile, the first scraping rod is driven to swing by the rotation of the second scraping rod, so that the fog on the surface glass is removed to a greater extent; in the process, the support rod moves in the smooth groove and rotates around the connecting column, the first scraping rod is not hindered from swinging, the support plate and the first scraping rod are supported by the spring and the support sheet, so that the first scraping rod and the second scraping rod are always attached to the lower surface of the watch glass, and the problem that the contact between the watch glass and the first scraping rod and the second scraping rod is insufficient due to installation or size difference is avoided; the oil in the metering box not only ensures the cleanness of a reading area, but also lubricates a defogging rod group above the metering box, thereby ensuring the long-term effective use of the defogging rod group; through the cooperation motion of first scraping rod and second scraping rod, compare the mode of single brush board clearance, reached the effect that gets rid of the fog on the table glass by a large scale, ensure to read the staff and can accurately read water numerical value.
The lower sealing ring comprises a first lantern ring fixed outside the watchcase, a second bevel gear positioned in the first lantern ring, a straight gear coaxially connected with the second bevel gear, a knob positioned outside the first lantern ring and coaxially connected with the straight gear, and a torsion spring sleeved on the shaft end for connecting the straight gear and the knob; the first collar is provided with a communicating groove, a mounting groove, a longitudinal sliding groove and a torsion spring seat; the second bevel gear is meshed with the first bevel gear; the upright post and the second bevel gear are positioned in the communicating groove; the communicating groove is communicated with the connecting groove; the straight gear is positioned in the mounting groove; the longitudinal sliding grooves are formed in two sides of the mounting groove; and two ends of the torsion spring are respectively fixed in the knob and the torsion spring seat.
When the difference in temperature leads to the surface glass lower surface to haze inside and outside the watchcase, through rotating the knob, make the second bevel gear rotatory, it rotates to drive first bevel gear, thereby make first pole and the second of scraping scrape the pole and remove, the knob resets under the torsional spring effect during the pine hand, drive second bevel gear antiport, and then make first pole and the second of scraping scrape the pole reverse motion and reset, once every rotatory knob promptly, carry out twice defogging operation, the automatic re-setting of knob can avoid first pole and the second of scraping to scrape the pole and arrive the stroke end after, twist knob messenger first bevel gear and second bevel gear impaired because of people's maloperation by force.
The upper sealing ring comprises a second sleeve ring positioned above the first sleeve ring, a top cover with one end rotatably connected with the first sleeve ring, a buckle arranged on one side of the top cover far away from the connection point of the top cover and the second sleeve ring, a transmission block positioned in the top cover and close to the connection point of the top cover and the second sleeve ring, and a rack positioned below the transmission block; a cushion pad positioned between the first collar and the watch glass; the first collar is provided with a through hole and an L-shaped groove; the top cover is provided with a transmission strip, a square-mouth groove and a pressing block; the buckle is provided with a first blocking piece and a second blocking piece; the transmission strip is arranged on the top cover and positioned at the joint of the top cover and the second sleeve ring; the buckle is inserted in the square groove; the square opening groove is positioned between the first baffle plate and the second baffle plate; the tail end of the buckle is embedded into the L-shaped groove; the bottom of the pressing block abuts against the center of the watch glass; the transmission block and the rack are positioned in the through hole; the bottom of the rack is inserted into the mounting groove and meshed with the straight gear.
When the water meter is used in daily life, the buckle is buckled into the L-shaped groove, the top cover completely covers the meter glass, the outer surface of the meter glass is prevented from being polluted, if water seeps into the top cover in the external environment, the water can flow out of the L-shaped groove, the phenomenon that the meter glass is polluted by sewage when the water meter is used like a conventional water meter and the reading is influenced is avoided, meanwhile, the pressing block is pressed on the meter glass, and the meter glass is assisted to bear water pressure; when a meter reader reads the water consumption, the buckle is transversely pushed and then lifted, so that the top cover can be driven to be turned up, the transmission bar pushes the transmission block to move downwards in the process, the rack moves downwards, the straight gear is driven to rotate, and the defogging rod set automatically completes one-time defogging operation so as to facilitate the work of the meter reader.
Convex strips are arranged on two sides of the rack; the tail end of the transmission strip is provided with a returning groove; the transmission block is provided with a slide bar, an upper inclined plane and a lower inclined plane; the sliding strip is positioned in the returning groove; the upper inclined plane is positioned below the sliding strip; the lower inclined plane can slide up and down in the mounting groove and the through hole; the bottom of the transmission block is contacted with the top of the rack; the convex strip is embedded in the longitudinal sliding groove.
When the top cover is opened, the transmission strip extrudes the sliding strip to enable the transmission block to move downwards so as to drive the rack to move downwards, the straight gear rotates to drive the defogging rod group to move forwards, the upper inclined plane contacts with the top edge of the through hole in the downward moving process of the transmission block to enable the transmission block to move transversely so as to enable the transmission block to move transversely to be separated from the top of the rack, the straight gear rotates reversely under the action of the torsion spring, the defogging rod group resets and the rack moves upwards, and through the arrangement, twice defogging operation can be completed when the top cover is opened, a meter reader can rotate the knob at any time to defogge again in the reading process, and the top cover cannot be covered due; after the reading is finished, only the top cover is needed to be covered and the buckle is buckled back into the L-shaped groove, the transmission belt moves the transmission block to move upwards in the process, the lower inclined surface contacts the bottom edge of the through hole to generate transverse movement, and the transmission block moves to the position right above the rack again to finish resetting.
O-shaped sealing rings are respectively arranged between the outer side surface of the watch case and the inner side surface of the first sleeve ring, between the top of the first sleeve ring and the bottom of the second sleeve ring, between the side surface of the watch glass and the inner side surface of the watch case and between the outer side surface of the watch case and the inner side surface of the second sleeve ring, and sealing layers are filled between the bottom of the watch glass and the watch case.
The sealing layer is the combination of the existing sealing glue and the elastic gasket, so that the water leakage of the contact part of the meter glass and the meter shell is ensured, meanwhile, the sealing layer is matched with the buffer cushion and the O-shaped sealing ring between the side surface of the meter glass and the inner side surface of the meter shell for use, the meter glass is fixed in the meter shell and can bear the impact, and the damage of the meter glass caused by the external impact when the water meter is installed or used is avoided.
A process for manufacturing a water meter as described above, comprising the steps of:
a. manufacturing a watch case: after casting a blank of the watchcase, processing and forming the watchcase by adopting a high-pressure liquid expansion method;
b. manufacturing other parts: manufacturing blanks of the first sleeve ring, the second sleeve ring and the top cover through casting, and finishing finish machining of the blanks by machining;
c. assembling: assembling and assembling the pre-processed watchcase, impeller and metering box; installing O-shaped sealing rings at corresponding positions of the watchcase, the first sleeve ring and the second sleeve ring in advance; fixing the first collar on the watch case, and coating sealant on the joint; the defogging rod group, the second bevel gear, the straight gear, the torsion spring and the knob are arranged at corresponding positions in the first lantern ring and the watchcase; coating sealant on the upper surface of the first sleeve ring, mounting the second sleeve ring on the first sleeve ring when the sealant is not dried, connecting the second sleeve ring with the top cover, and mounting a transmission block and a rack in the through hole; and installing a sealing layer at the position for installing the meter glass in the meter shell, and fixing the meter glass to the corresponding position to finish the assembly.
The invention has the advantages that: according to the invention, the defogging rod group is arranged at the bottom of the meter glass, and when the meter is used, through the movement of the first scraping rod and the second scraping rod and the supporting force of the spring and the supporting sheet, the effect of removing the fog on the meter glass in a larger area is achieved, so that a meter reader can accurately read the water consumption value, the cleanness of a reading area is ensured due to the oil sealing in the metering box, and meanwhile, the defogging rod group above the metering box is lubricated, so that the defogging rod group can be effectively used for a long time.
Drawings
Figure 1 is an exploded view of a water meter according to the present invention.
Figure 2 is a left side view of the water meter of the present invention.
Figure 3 is a front view of the water meter of the present invention.
Fig. 4 is a left side view of the defogging bar assembly of fig. 1.
Fig. 5 is a cross-sectional view taken along line a-a of fig. 2.
Fig. 6 is an isometric cross-sectional view taken along line B-B of fig. 3.
Fig. 7 is an isometric cross-sectional view taken along line C-C of fig. 4.
Fig. 8 is an exploded view of the lower seal ring of fig. 1.
Fig. 9 is an exploded view of the upper seal ring of fig. 1.
Fig. 10 is a partially enlarged view of a portion D in fig. 5.
Fig. 11 is a partial enlarged view of a portion E in fig. 9.
Fig. 12 is a partially enlarged view of portion F in fig. 9.
Detailed Description
As shown in fig. 1 to 12, a water meter comprises a meter case 1, an impeller 2 which is positioned in the meter case and is rotatably connected with the meter case, a metering box 3 positioned at the top of the impeller, a defogging rod group 4 positioned above the metering box, a lower seal ring 5 positioned outside the meter case, meter glass 6 which is adhesively connected and fixed at the top of the meter case, and an upper seal ring 7 which is positioned at the top of the meter case and is arranged above the lower seal ring; a water inlet 11, a water outlet 12 and a connecting groove 13 are arranged in the meter shell; a gear set 32, a connecting column 33 and a plurality of pointers 31 are arranged in the metering box; the defogging rod group comprises a support sheet 41 sleeved on the connection column, a support spring 42 sleeved on the connection column and positioned at the bottom of the support sheet, a support rod 43 with one end hinged on the connection column and positioned above the support sheet, a first scraping rod 44 connected with one end of the support rod, a second scraping rod 45 hinged with one end of the first scraping rod, an upright column 46 fixed at the other end of the second scraping rod in a welding manner, and a first bevel gear 47 fixed on the upright column and positioned below the second scraping rod; a flat sliding groove 441 is arranged below the first scraping rod; the metering box is connected with the impeller through a gear set; the water inlet is higher than the water outlet; the tops of the first scraping rod and the second scraping rod contact the lower surface of the watch glass; one end of the second scraping rod penetrates through the connecting groove; the upright post is rotatably connected with the lower seal ring; the tail end of the supporting rod can slide in the smooth groove; the areas of the inside of the watch case, which are positioned below the watch glass and above the metering box, are filled with a preparation liquid such as glycerol.
The principle of water consumption metering of the water meter is the same as that of the existing liquid seal water meter, water flow enters the meter shell 1 from the water inlet 11 and flows out from the water outlet 12, the impeller 2 is driven to rotate in the process, the top of the impeller is meshed with the gear set 32, so that the plurality of pointers 31 connected with the gear set are driven to rotate, and a meter reader reads the readings of the pointers 31 twice in sequence to obtain the water consumption in the time period; the structure of the defogging rod group 4 is shown in fig. 7, when the surface glass 6 needs to be defogged before reading, the first bevel gear 47 is rotated by controlling the components in the lower sealing ring 5, so as to drive the upright column 46 and the second scraping rod 45 to rotate, and then the fog on the surface part of the surface glass 6 is scraped, and meanwhile, the second scraping rod 45 rotates to drive the first scraping rod 44 to swing, so that the fog on the surface glass 6 is removed in a larger area; in the process, the supporting rod 43 moves in the smooth groove 441 and rotates around the connecting column 33, so that the first scraping rod 44 is not hindered from swinging, the spring 42 and the supporting sheet 41 support the supporting plate 43 and the first scraping rod 44, so that the first scraping rod 44 and the second scraping rod 45 are always attached to the lower surface of the watch glass 6, and the problem that the watch glass 6 is not fully contacted with the first scraping rod 44 and the second scraping rod 45 due to installation or size difference is avoided; the oil in the metering box lubricates the defogging rod group 4, so that the defogging rod group 4 can be effectively used for a long time.
The lower sealing ring 5 comprises a first lantern ring 51 fixed outside the watch case 1 through threaded connection, a second bevel gear 52 positioned in the first lantern ring, a spur gear 53 coaxially connected with the second bevel gear, a knob 55 positioned outside the first lantern ring and coaxially connected with the spur gear, and a torsion spring 54 sleeved on the shaft end connecting the spur gear and the knob; the first collar is provided with a communicating groove 511, a mounting groove 512, a longitudinal sliding groove 513 and a torsion spring seat 514; the second bevel gear meshes with the first bevel gear 47; the upright column 46 and the second bevel gear are positioned in the communication groove; the communicating groove is communicated with the connecting groove; the straight gear is positioned in the mounting groove; the longitudinal sliding grooves are formed in two sides of the mounting groove; and two ends of the torsion spring are respectively fixed in the knob and the torsion spring seat.
The structure of the lower seal ring 5 is shown in fig. 8, when the temperature difference between the inside and the outside of the watch case 1 causes the lower surface of the glass 6 to be fogged, the knob 55 is rotated to rotate the second bevel gear 52, the first bevel gear 47 is driven to rotate, the torsion spring 54 is tightened, so that the first scraping rod 44 and the second scraping rod 45 move to perform defogging, when the hand is loosened, the knob 55 is reset under the action of the torsion spring 54 to drive the second bevel gear 52 to rotate reversely, and finally the first scraping rod 44 and the second scraping rod 45 are reset in reverse movement, that is, once the knob 55 is rotated manually, two defogging operations are performed.
The upper sealing ring 7 comprises a second collar 71 positioned above the first collar 51, a top cover 72 with one end hinged with the first collar, a buckle 73 arranged on one side of the top cover far away from the connection point of the top cover and the second collar, a transmission block 74 positioned in the top cover and close to the connection point of the top cover and the second collar, and a rack 75 positioned below the transmission block; a cushion 46 located between the first collar and the watch glass 6; the first collar is provided with a through hole 711 and an L-shaped groove 712; the top cover is provided with a transmission strip 721, a square groove 722 and a pressing block 723; a first blocking piece 731 and a second blocking piece 732 are arranged on the buckle; the transmission strip is arranged on the top cover and positioned at the joint of the top cover and the second sleeve ring; the buckle is inserted in the square groove; the square opening groove is positioned between the first baffle plate and the second baffle plate; the tail end of the buckle is embedded into the L-shaped groove; the bottom of the pressing block abuts against the center of the watch glass 6; the transmission block and the rack are positioned in the through hole; the bottom of the rack is inserted into the mounting groove 512 and engaged with the spur gear 53.
The structure of the upper seal ring is as shown in fig. 6 and 9, the second lantern ring 71 is fixed on the top of the first lantern ring 51 through threaded connection, and sealing treatment is performed between the first lantern ring and the second lantern ring; when the waterproof meter is used in daily life, one end of the buckle 73 is buckled into the L-shaped groove 712, the top cover 72 completely covers the meter glass 6, when water seeps into the top cover 72 in the external environment, the water flows out of the L-shaped groove 712, the buffer pad 46 is an annular latex cushion block and is arranged between the second sleeve ring 71 and the meter glass 6 to serve as the buffer between the meter glass 6 and the second sleeve ring 71, and a notch is formed in the position, corresponding to the L-shaped groove 712, of the buffer pad 46, so that accumulated water between the top cover 72 and the meter glass 6 can smoothly flow out of the L-shaped groove 712; the pressing block 723 is pressed against the meter glass to assist the meter glass to bear water pressure; when a meter reader reads the water consumption, the top cover 72 can be driven to be turned up by transversely pushing the fastener 73 and then lifting the fastener, and the fastener 73 cannot fall from the square opening groove 722 due to the limitation of the first blocking piece 731 and the second blocking piece 732; the driving rack 721 pushes the driving block 74 to move downwards during the turning of the top cover 72, so as to move the rack 75 downwards, drive the spur gear 53 to rotate, and finally enable the defogging rod set 4 to automatically complete a defogging operation.
Convex strips 751 are arranged on two sides of the rack 75; the tail end of the transmission bar 721 is provided with a clip groove 7211; the transmission block 74 is provided with a slide 741, an upper inclined plane 742 and a lower inclined plane 743; the sliding strip is positioned in the returning groove; the upper inclined plane is positioned below the sliding strip; the lower inclined plane can slide up and down in the mounting groove 512 and the through hole 711; the bottom of the transmission block is contacted with the top of the rack; the convex strip is embedded in the longitudinal sliding groove.
When the top cover 72 is opened, the transmission strip 721 presses the sliding strip 741 to move the transmission block 74 downwards, so as to drive the rack 75 to move downwards, and the convex strip 751 moves in the longitudinal sliding groove 513 to limit the rack 75 to move vertically; the rack 75 drives the spur gear 53 to rotate, so that the defogging rod group 4 moves forward, the upper inclined plane 742 contacts the top edge of the through hole 711 in the downward moving process of the transmission block 74, the transmission block 74 moves transversely, the sliding strip 741 moves transversely in the reverse groove 7211, and the transmission strip 721 does not block the transmission block 74 to move; the bottom of the transmission block 74 is provided with an inclined plane, the inclined plane at the bottom gradually contacts the top of the rack 75 in the transverse moving process until the transmission block 74 transversely moves to be separated from the top of the rack 75, the straight gear 53 reversely rotates under the action of the torsion spring 54, the defogging rod set 4 resets and the rack 75 moves upwards to reset; after reading, the top cover 72 is only needed to be covered, the buckle 73 is buckled back into the L-shaped groove 712, the transmission strip 721 drives the transmission block 74 to move upwards in the process, the lower inclined plane 743 contacts the bottom edge of the through hole 711, so that the transmission block 74 moves transversely, the transmission block 74 moves to the position right above the rack 75 again, and resetting is completed.
O-shaped sealing rings 8 are respectively arranged between the outer side surface of the watch case 1 and the inner side surface 51 of the first lantern ring, between the top of the first lantern ring and the bottom of the second lantern ring 71, between the side surface of the watch glass 6 and the inner side surface of the watch case, and between the outer side surface of the watch case and the inner side surface of the second lantern ring, and sealing layers 9 are filled between the bottom of the watch glass and the watch case; the sealing layer 9 is a combination of the existing sealing glue and an elastic gasket, so that the contact position of the meter glass and the meter shell is not watertight, and the meter glass 6 is fixed inside the meter shell 1 and can bear impact by matching with the buffer pad 76 and the O-shaped sealing ring 8 between the side surface of the meter glass 6 and the inner side surface of the meter shell 1, so that the meter glass 6 is prevented from being damaged by external impact when the water meter is installed or used.
A processing technology for processing the water meter comprises the following steps:
a. manufacturing a watch case: casting a blank of the watchcase 1, and processing and forming the watchcase 1 by adopting a high-pressure liquid expansion method; wherein, the main body of the watchcase is processed and formed by adopting a water expansion method, and the water inlet 11 and the water outlet 12 are processed and formed by adopting a hydraulic method.
b. Manufacturing other parts: manufacturing blanks of the first collar 51, the second collar 71 and the top cover 72 by casting, and finishing the blanks by machining;
c. assembling: assembling and splicing the pre-processed watchcase 1, the impeller 2 and the metering box 3; an O-shaped sealing ring 8 is mounted on the corresponding positions of the watch case, the first sleeve ring 51 and the second sleeve ring 71 in advance; fixing the first lantern ring 51 on the watch case, and coating sealant on the joint; the defogging rod group 4, the second bevel gear 52, the straight gear 53, the torsion spring 54 and the knob 55 are arranged in corresponding positions in the first collar and the watch case; coating sealant on the upper surface of the first sleeve ring, installing the second sleeve ring on the first sleeve ring when the sealant is not dried, connecting the second sleeve ring with the top cover 72, and installing a transmission block 74 and a rack 75 in the through hole 711; and installing a sealing layer 9 at the position where the watch glass 6 is installed in the watch case, and fixing the watch glass to the corresponding position to finish the assembly.
The working process of the water meter comprises the following steps: when the water-saving water meter is used in daily life, one end of the buckle 73 is buckled into the L-shaped groove 712, the top cover 72 completely covers the meter glass 6, when water seeps into the top cover 72 in the external environment, the water flows out of the L-shaped groove 712, the pressing block 723 is pressed on the meter glass, and the meter glass is assisted to bear water pressure; the water flow enters the watch case 1 from the water inlet 11 and flows out from the water outlet 12, and in the process, the impeller 2 is driven to rotate, the top of the impeller is meshed with the gear set 32, and therefore the plurality of pointers 31 connected with the gear set are driven to rotate; when a meter reader reads water consumption, the top cover 72 is opened, the transmission strip 721 extrudes the sliding strip 741 to enable the transmission block 74 to move downwards, so as to drive the rack 75 to move downwards, the rack 75 drives the straight gear 53 to rotate, the second bevel gear 52 drives the first bevel gear 47 to rotate, so as to drive the upright column 46 and the second scraping rod 45 to rotate, mist on partial surface area of the meter glass 6 is scraped, meanwhile, the second scraping rod 45 rotates to drive the first scraping rod 44 to swing, so that mist on the meter glass 6 is removed in a larger area; the transmission block 74 moves downwards continuously, the upper inclined plane 742 contacts the top edge of the through hole 711, the transmission block 74 moves transversely until the transmission block is separated from the top of the rack 75, the straight gear 53 rotates reversely under the action of the torsion spring 54, the defogging rod set 4 resets, and the rack 75 moves upwards and resets; in the reading process, the torsion spring 54 is contracted by rotating the knob 55, the second bevel gear 52 rotates to drive the first bevel gear 47 to rotate, so that the defogging rod group 4 moves to perform defogging, the knob 55 resets under the action of the torsion spring 54 when hands are loosened, the second bevel gear 52 is driven to rotate reversely, and finally the defogging rod group 4 is reset in a reverse motion manner; after the reading is finished, the top cover 72 is covered, the buckle 73 is buckled back into the L-shaped groove 712, the transmission strip 721 drives the transmission block 74 to move upwards in the process, the lower inclined plane 743 contacts the bottom edge of the through hole 711, so that the transmission block 74 moves transversely, the transmission block 74 moves to the position right above the rack 75 again, and the resetting is finished.
Claims (6)
1. A water meter comprises a meter shell (1), an impeller (2) positioned in the meter shell, a metering box (3) connected to the top of the impeller, a defogging rod group (4) positioned above the metering box, a lower sealing ring (5) positioned outside the meter shell, meter glass (6) fixed at the top of the meter shell, and an upper sealing ring (7) positioned at the top of the meter shell and arranged above the lower sealing ring; the method is characterized in that: a water inlet (11), a water outlet (12) and a connecting groove (13) are arranged in the meter shell; a gear set (32), a connecting column (33) and a plurality of pointers (31) are arranged in the metering box; the defogging rod group comprises a support sheet (41) sleeved on the connection column, a support spring (42) sleeved on the connection column and positioned at the bottom of the support sheet, a support rod (43) with one end sleeved on the connection column and positioned above the support sheet, a first scraping rod (44) connected with one end of the support rod, a second scraping rod (45) rotatably connected with one end of the first scraping rod, an upright post (46) fixed at the other end of the second scraping rod, and a first bevel gear (47) fixed on the upright post and positioned below the second scraping rod; a flat sliding chute (441) is arranged below the first scraping rod; the metering box is connected with the impeller through a gear set; the water inlet is higher than the water outlet; the tops of the first scraping rod and the second scraping rod contact the lower surface of the watch glass; one end of the second scraping rod penetrates through the connecting groove; the upright post is rotatably connected with the lower seal ring; the tail end of the supporting rod is positioned in the flat sliding groove; the areas of the inside of the watch case, which are positioned below the watch glass and above the metering box, are filled with a preparation liquid such as glycerol.
2. A water meter as claimed in claim 1, wherein: the lower sealing ring (5) comprises a first lantern ring (51) fixed outside the watch case (1), a second bevel gear (52) positioned in the first lantern ring, a straight gear (53) coaxially connected with the second bevel gear, a knob (55) positioned outside the first lantern ring and coaxially connected with the straight gear, and a torsion spring (54) sleeved on the shaft end connecting the straight gear and the knob; the first collar is provided with a communicating groove (511), a mounting groove (512), a longitudinal sliding groove (513) and a torsion spring seat (514); the second bevel gear is meshed with a first bevel gear (47); the upright column (46) and the second bevel gear are positioned in the communication groove; the communicating groove is communicated with the connecting groove; the straight gear is positioned in the mounting groove; the longitudinal sliding grooves are formed in two sides of the mounting groove; and two ends of the torsion spring are respectively fixed in the knob and the torsion spring seat.
3. A water meter as claimed in claim 2, wherein: the upper sealing ring (7) comprises a second sleeve ring (71) positioned above the first sleeve ring (51), a top cover (72) with one end rotatably connected with the first sleeve ring, a buckle (73) arranged on one side of the top cover far away from the connection point of the top cover and the second sleeve ring, a transmission block (74) positioned in the top cover and close to the connection point of the top cover and the second sleeve ring, and a rack (75) positioned below the transmission block; a cushion (46) located between the first collar and the crystal (6); the first collar is provided with a through hole (711) and an L-shaped groove (712); the top cover is provided with a transmission bar (721), a square groove (722) and a pressing block (723); a first blocking piece (731) and a second blocking piece (732) are arranged on the buckle; the transmission strip is arranged on the top cover and positioned at the joint of the top cover and the second sleeve ring; the buckle is inserted in the square groove; the square opening groove is positioned between the first baffle plate and the second baffle plate; the tail end of the buckle is embedded into the L-shaped groove; the bottom of the pressing block abuts against the center of the watch glass (6); the transmission block and the rack are positioned in the through hole; the bottom of the rack is inserted into the mounting groove (512) and meshed with the straight gear (53).
4. A water meter as claimed in claim 3, wherein: convex strips (751) are arranged on two sides of the rack (75); a return groove (7211) is arranged at the tail end of the transmission bar (721); the transmission block (74) is provided with a slide bar (741), an upper inclined plane (742) and a lower inclined plane (743); the sliding strip is positioned in the returning groove; the upper inclined plane is positioned below the sliding strip; the lower inclined plane can slide up and down in the mounting groove (512) and the through hole (711); the bottom of the transmission block is contacted with the top of the rack; the convex strip is embedded in the longitudinal sliding groove.
5. A water meter as claimed in claim 3, wherein: o-shaped sealing rings (8) are respectively arranged between the outer side surface of the watch case (1) and the inner side surface (51) of the first lantern ring, between the top of the first lantern ring and the bottom of the second lantern ring (71), between the side surface of the watch glass (6) and the inner side surface of the watch case and between the outer side surface of the watch case and the inner side surface of the second lantern ring, and sealing layers (9) are filled between the bottom of the watch glass and the watch case.
6. A processing technology for processing the water meter as claimed in any one of claims 1 to 5, comprising the following steps:
a. manufacturing a watch case: after casting a blank of the watch case (1), machining and forming the watch case by adopting a high-pressure liquid expansion method;
b. manufacturing other parts: manufacturing blanks of the first collar (51), the second collar (71) and the top cover (72) by casting, and finishing the blanks by machining;
c. assembling: assembling and assembling the pre-processed watchcase (1), the impeller (2) and the metering box (3); an O-shaped sealing ring (8) is mounted on the corresponding positions of the watch case, the first sleeve ring (51) and the second sleeve ring (71) in advance; fixing the first lantern ring (51) on the watch case, and coating sealant on the joint; the defogging rod group (4), the second bevel gear (52), the straight gear (53), the torsion spring (54) and the knob (55) are installed at corresponding positions in the first lantern ring and the watch case; coating sealant on the upper surface of the first sleeve ring, installing the second sleeve ring on the first sleeve ring when the sealant is not dried, connecting the second sleeve ring with the top cover (72), and installing a transmission block (74) and a rack (75) in the through hole (711); and a sealing layer (9) is arranged at the position for installing the watch glass (6) in the watch case, and the watch glass is fixed to the corresponding position to finish the assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110139168.0A CN112857476A (en) | 2021-02-01 | 2021-02-01 | Water meter and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110139168.0A CN112857476A (en) | 2021-02-01 | 2021-02-01 | Water meter and processing technology thereof |
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| Publication Number | Publication Date |
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| CN112857476A true CN112857476A (en) | 2021-05-28 |
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| CN202110139168.0A Pending CN112857476A (en) | 2021-02-01 | 2021-02-01 | Water meter and processing technology thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205449201U (en) * | 2016-03-15 | 2016-08-10 | 湖南威铭能源科技有限公司 | Water gauge and seal structure thereof |
| CN207113954U (en) * | 2017-09-13 | 2018-03-16 | 湖南威铭能源科技有限公司 | Antifog water meter |
| CN111289047A (en) * | 2018-12-07 | 2020-06-16 | 西安北斗星数码信息股份有限公司 | Water meter with defogging function |
| CN210893296U (en) * | 2019-09-04 | 2020-06-30 | 江花集团有限公司 | Convenient and durable camera shooting intelligent meter |
| CN212370653U (en) * | 2020-06-03 | 2021-01-19 | 成都英耐吉能源有限公司 | Instrument dust keeper for mine |
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2021
- 2021-02-01 CN CN202110139168.0A patent/CN112857476A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205449201U (en) * | 2016-03-15 | 2016-08-10 | 湖南威铭能源科技有限公司 | Water gauge and seal structure thereof |
| CN207113954U (en) * | 2017-09-13 | 2018-03-16 | 湖南威铭能源科技有限公司 | Antifog water meter |
| CN111289047A (en) * | 2018-12-07 | 2020-06-16 | 西安北斗星数码信息股份有限公司 | Water meter with defogging function |
| CN210893296U (en) * | 2019-09-04 | 2020-06-30 | 江花集团有限公司 | Convenient and durable camera shooting intelligent meter |
| CN212370653U (en) * | 2020-06-03 | 2021-01-19 | 成都英耐吉能源有限公司 | Instrument dust keeper for mine |
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