CN201637451U - Flow control device of dry-type water meter - Google Patents
Flow control device of dry-type water meter Download PDFInfo
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- CN201637451U CN201637451U CN2010201231481U CN201020123148U CN201637451U CN 201637451 U CN201637451 U CN 201637451U CN 2010201231481 U CN2010201231481 U CN 2010201231481U CN 201020123148 U CN201020123148 U CN 201020123148U CN 201637451 U CN201637451 U CN 201637451U
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- impeller
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Abstract
The utility model relates to a flow control device of a dry-type water meter, which is designed to solve the technical problems that flow control devices in the existing rotor type water meters are defective in structures. The flow control device is disposed in a water meter casing and consists of a flow auxiliary structure and a flow metering structure. The flow control device is characterized in that a filter screen of the flow auxiliary structure is provided with filter holes and a supporting rib, the supporting rib is butted against the bottom of a filter valve, a guide shaft is provided with a bottom valve, the diameter of the filter screen is larger than that of a water inlet hole of the filter valve, the diameter of a projection of the bottom valve is smaller than that of the water inlet hole of the filter valve, a magnetic steel seat is arranged at the other end of an impeller, magnetic steels are arranged at the bottom of a center gear shaft of the flow metering structure, and the magnetic steel seat at the top of the impeller is opposite to the magnetic steels at the bottom of the center gear shaft, and the magnetic steel seat is separated from the magnetic steels via a gearbox. The flow control device has the advantages of high precision, corrosion resistance, fine antifreeze effect and long service life, and is applicable to metering flow in household water pipes.
Description
Technical field
The utility model relates to flow measurement instrument, is a kind of dry-type meter volume control device of rotor water gauge.
Background technology
At present, the water meter kind on the market is a lot, generally is divided into volumetric water meter and velocity type water meter two classes.Velocity type water meter refers to that water meter is contained in the closed conduct, is made up of a motor element, and directly makes it obtain the water meter of power speed by water movement speed.Velocity type water meter generally is divided into rotor water gauge and helical vane type water meter, and wherein rotor water gauge is divided into single channel water meter and multithread Shu Shuibiao again.As the ZL patent No. 03150887.1 that discloses in the Chinese patent literature, March 30 2005 Granted publication day, utility model title " a kind of rotor water gauge ", this water meter is characterised in that leaf wing wheel box and gearcase are one-body molded, the upper end of gearcase is provided with the supporting dome, watchcase is provided with supporting boss, the supporting dome is bearing on the supporting boss, below the metering water inlet, the outer surface of leaf wing wheel box contacts with the watchcase inside surface, leaf wing wheel box is provided with annular groove at the surface of contact place, is provided with the O RunddichtringO in the annular groove.But generally more than 10L/h, class of accuracy or metering grade can only reach 2 grades (R40) or A level, 2 grades (R80) or B level to above-mentioned watermeter flowing rate, can't satisfy the requirement of 2 grades (R160) or C level water meter boundary flow and minimum flow.
Simultaneously, the metering grade of water meter has reflected the low district metering performance under its working flow scope, especially low discharge.As the ZL patent No. 200420021905.9 that discloses in the Chinese patent literature, May 25 2005 Granted publication day, utility model title " high precision water flow measurement device ", the water meter turbine that one water intaking valve piece and tiny flow quantity pilot hole drive is set in this water meter case, impeller is connected with the metering indicator, one center screen pack is set in the water meter case, screen pack top, center is provided with the impeller box of a band impeller, the baseplane of impeller box connects a valve piece, the baseplane of valve piece is provided with a circular conical surface, the central inner of screen pack is provided with an inner conical surface that matches with circular conical surface, and the cylindrical anchor ring wringing fit of the interior anchor ring of screen pack and impeller box forms the tiny flow quantity intake antrum.But the direct driven gear of impeller metering mechanism rotates in the above-mentioned water meter, and impeller and sun gear shaft are connected as a single entity, and gear metering mechanism and character wheel metering mechanism drying effect are relatively poor, produces comparatively inconvenience of assembling.
Summary of the invention
For overcoming the deficiency of above-mentioned existence, the utility model purpose is to provide a kind of dry-type meter volume control device that is used for high precision, multithread bundle, rotor water gauge to this area, make its technical matters that solves watermeter flowing rate control device poor structure in the existing rotor water gauge, make it satisfy the requirement of 2 grades (R160) or the flow metering of C level.Its objective is and be achieved through the following technical solutions.
A kind of dry-type meter volume control device, this device is arranged in the water meter case, is made up of flow supplementary structure and flow metering structure; The impeller box of flow supplementary structure is connected with trap, the bottom of trap is provided with the water strainer sheet, and trap one side is provided with the metering water inlet, and the trap bottom is provided with the axis of guide, impeller box is provided with and measures the mouth of a river and support the pinnacle, supports the supporting seat that impeller one end is inserted on the pinnacle; The gearcase of flow metering structure is connected with impeller box, gearcase is connected with counter, gearcase is provided with transparency cover, be provided with sun gear shaft between gearcase and the counter, the external diameter gear of sun gear shaft and the external diameter gearing mesh of gear metering mechanism, gear metering mechanism is connected with character wheel metering mechanism.Impeller drives sun gear shaft and rotates, and central gear shaft driven gear metering mechanism rotates, and gear metering mechanism drives character wheel metering mechanism and rotates.
Its design main points are that described water strainer sheet is provided with filter opening and brace rod, and the bottom of brace rod and trap offsets; The axis of guide is provided with bottom valve, and water strainer sheet diameter is greater than the inlet opening diameter of trap, and the protrusion diameter of bottom valve is less than the inlet opening diameter of trap; The water strainer sheet has the higher elasticity of induction sensitivity, adopts the shunting inlet method, utilizes water flow impact pressure to make bottom valve automatic shutter distributing inlet.Promptly when big flow, bottom valve and metering water inlet are opened simultaneously, and impeller is impacted in bottom valve and the water inlet of metering water inlet; When low discharge, bottom valve cuts out automatically, and the metering water inlet continues water inlet and impacts impeller, finishes metering, reduces backflow phenomenon.The described impeller other end is provided with magnet steel seat, and the sun gear shaft bottom is provided with magnet steel; The magnet steel seat at impeller top is relative with the magnet steel of sun gear shaft bottom, separates by gearcase between magnet steel seat and the magnet steel.Utilize the magnetic field induction between magnet steel seat and the magnet steel, make impeller when rotating, the drive sun gear shaft rotates, the gear of central gear shaft driven gear metering mechanism rotates, make between the inner body of the inner body of impeller box and gearcase and isolate preferably, keep the drying in the gearcase sum counter.
Described trap is connected with gearcase, and trap, gearcase are fixed in the housing, and trap and housing junction are provided with O-ring seal, and gearcase and housing junction are provided with O-ring seal.The said structure design is kept dry gearcase annular wheel metering mechanism and character wheel metering mechanism, and promptly current enter impeller box from the metering water inlet of trap, after the promotion wheel rotation, flows out water meter from the mouth of a river that measures of impeller box.Simultaneously, easy to assembly in process of production, production efficiency is higher.
Be provided with character wheel metering mechanism and gear metering mechanism in the described counter, gear metering mechanism is connected with sensible pointer by needle pivot.When gear metering mechanism drives sensible pointer, drive character wheel metering mechanism and rotate, finish the metering of flow.
The utility model employing shunting inlet method is low district flow supplementary structure when low discharge is intake, big flow is high district flow supplementary structure when intaking; The magnet steel that utilizes the magnetic field induction principle that the magnet steel seat on the impeller is driven on the sun gear shaft rotates.It belongs to a kind of combined type innovation and creation, has the characteristics of precision height, anticorrosion, good freezing protection effect, long service life, is applicable to the metering of flow in the water pipes such as family.
Description of drawings
Fig. 1 be of the present utility model when low district flow structural representation, the water (flow) direction when arrow is low discharge among the figure.
Fig. 2 be of the present utility model when height district flow structural representation, the water (flow) direction when arrow is big flow among the figure.
Fig. 3 is a user mode structural representation of the present utility model, and arrow is a water (flow) direction among the figure.
Above figure number and title: 1, impeller box, 101, measure the mouth of a river, 2, impeller, 3, water strainer sheet, 301, filter opening, 302, brace rod, 4, support the pinnacle, 5, bottom valve, 501, projection, 6, the axis of guide, 7, trap, 701, inlet opening, 702, the metering water inlet, 8, supporting seat, 9, magnet steel seat, 10, gearcase, 11, magnet steel, 12, counter, 13, character wheel metering mechanism, 14, sensible pointer, 15, transparency cover, 16, needle pivot, 17, gear metering mechanism, 18, sun gear shaft, 19, housing, 20, table lid.
Embodiment
Embodiment is further described structure of the present utility model and principle of work in conjunction with the accompanying drawings.As shown in Figure 1 and Figure 2, the flow supplementary structure of this device is made up of impeller box 1, impeller 2, water strainer sheet 3, support pinnacle 4, bottom valve 5, the axis of guide 6, trap 7, supporting seat 8, magnet steel seat 9.Be provided with impeller in impeller box and the cavity that trap is connected, support pinnacle, bottom valve, the axis of guide, supporting seat, magnet steel.The two ends perk of water strainer sheet is connected with the bottom of trap, and the water strainer sheet is provided with filter opening 301 and brace rod 302, and the bottom of brace rod and trap offsets.The side of trap is provided with metering water inlet 702, and the axis of guide of trap is provided with bottom valve, and the projection 501 of bottom valve is inserted in the inlet opening 701 of trap, the supporting seat on the top insertion impeller of the support of impeller box, and the impeller top is provided with magnet steel seat.The flow metering structure of this device is made up of gearcase 10, magnet steel 11, counter 12, character wheel metering mechanism 13, sensible pointer 14, transparency cover 15, needle pivot 16, gear metering mechanism 17, sun gear shaft 18, the sun gear shaft bottom is provided with magnet steel, sun gear shaft inserts counter, the gearing mesh of the gear of sun gear shaft external diameter and gear metering mechanism, gear metering mechanism is connected with character wheel metering mechanism, counter is inserted in gearcase, counter and gearcase interference fit, gearcase is provided with transparency cover.As shown in Figure 3, above-mentioned flow metering structure and flow supplementary structure are connected as a single entity, and the gearcase of the trap of flow supplementary structure and flow metering structure is fixed in the housing 19, and the junction is respectively equipped with O-ring seal, and housing is provided with table and covers 20.
This water meter device adopts the shunting inlet method: utilize water flow impact pressure to make bottom valve automatic shutter distributing inlet.As shown in Figure 1, when because of small water flow impact pressure is little, when making bottom valve close into water automatically, the water strainer sheet is to small water flow impact pressure induction sensitivity height, and the good airproof performance between bottom valve and the trap is difficult for causing phenomenon such as backflow to take place.As shown in Figure 2, when water flow impact pressure is big, when making bottom valve open distributing inlet automatically, the brace rod of water strainer sheet and trap keep certain distance, and current are more accurate to the water flow impact pressure effect of water strainer sheet, finish water meter accurate measurement process.Simultaneously, no matter weep still is that the big flood circulation is when filtering water valve and flowing through impeller, utilize the magnetic field induction principle, magnet steel seat on the impeller impeller rotates, the magnet steel of magnet steel seat driven gear box opposite side sun gear shaft bottom rotates, and magnet steel drives sun gear shaft and rotates, and central gear shaft driven gear metering mechanism rotates, gear metering mechanism drives character wheel metering mechanism and rotates, and finishes the metering of flow in the water meter.The requirement of 2 grades (R160) or C level watermeter flowing rate had both been satisfied in its work, accurate measurement requirement when realizing small current initiating, simultaneously, satisfied the drying of gearcase annular wheel metering mechanism and character wheel metering mechanism again, prevent the corrosion of gear metering mechanism and character wheel metering mechanism, improved antifreezing effect, serviceable life and the measuring accuracy of water meter.
Claims (3)
1. dry-type meter volume control device, this device is arranged in the water meter case (19), is made up of flow supplementary structure and flow metering structure; The impeller box of flow supplementary structure (1) is connected with trap (7), the bottom of trap is provided with water strainer sheet (3), trap one side is provided with metering water inlet (702), the trap bottom is provided with the axis of guide (6), impeller box is provided with and measures the mouth of a river (101) and support pinnacle (4), supports the supporting seat (8) that impeller (2) one ends are inserted on the pinnacle; The gearcase of flow metering structure (10) is connected with impeller box (1), gearcase is connected with counter (12), gearcase is provided with transparency cover (15), be provided with sun gear shaft (18) between gearcase and the counter, the external diameter gearing mesh of the external diameter gear of sun gear shaft and gear metering mechanism (17), gear metering mechanism is connected with character wheel metering mechanism (13); It is characterized in that
Described water strainer sheet (3) is provided with filter opening (301) and brace rod (302), and the bottom of brace rod and trap (7) offsets; The axis of guide (6) is provided with bottom valve (5), and water strainer sheet diameter is greater than inlet opening (701) diameter of trap, and the projection of bottom valve (501) diameter is less than the inlet opening diameter of trap;
Described impeller (2) other end is provided with magnet steel seat (9), and sun gear shaft (18) bottom is provided with magnet steel (11); The magnet steel seat at impeller top is relative with the magnet steel of sun gear shaft bottom, separates by gearcase (10) between magnet steel seat and the magnet steel.
2. according to the described dry-type meter volume control device of claim 1, it is characterized in that described trap (7) is connected with gearcase (10), trap, gearcase are fixed in the housing (19), and trap and housing junction are provided with O-ring seal, and gearcase and housing junction are provided with O-ring seal.
3. according to the described dry-type meter volume control device of claim 1, it is characterized in that being provided with in the described counter (12) character wheel metering mechanism (13) and gear metering mechanism (17), gear metering mechanism is connected with sensible pointer (14) by needle pivot (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201231481U CN201637451U (en) | 2010-03-04 | 2010-03-04 | Flow control device of dry-type water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201231481U CN201637451U (en) | 2010-03-04 | 2010-03-04 | Flow control device of dry-type water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637451U true CN201637451U (en) | 2010-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201231481U Expired - Fee Related CN201637451U (en) | 2010-03-04 | 2010-03-04 | Flow control device of dry-type water meter |
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| CN (1) | CN201637451U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535120A (en) * | 2014-12-21 | 2015-04-22 | 宁波市精诚科技有限公司 | Anti-blockage electronic metering water meter |
| WO2016011813A1 (en) * | 2014-07-21 | 2016-01-28 | 杭州竞达电子有限公司 | Electronic intelligent helical-vaned small-caliber water meter |
| CN105352557A (en) * | 2015-11-26 | 2016-02-24 | 宁波市埃美仪表制造有限公司 | Double-magnetic-steel transmission device for water meter |
| CN105890703A (en) * | 2015-10-28 | 2016-08-24 | 安徽翼迈科技股份有限公司 | Dry water meter |
| CN106197622A (en) * | 2016-08-25 | 2016-12-07 | 成都秦川科技发展有限公司 | Water meter indication error regulation system |
| CN111637934A (en) * | 2020-04-21 | 2020-09-08 | 安徽丹凤缘科技有限公司 | Metering device of NB-IOT thing networking water gauge |
| CN113432663A (en) * | 2021-06-25 | 2021-09-24 | 淄博海源电子科技有限公司 | Impeller-free water meter with self-cleaning function |
-
2010
- 2010-03-04 CN CN2010201231481U patent/CN201637451U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016011813A1 (en) * | 2014-07-21 | 2016-01-28 | 杭州竞达电子有限公司 | Electronic intelligent helical-vaned small-caliber water meter |
| CN104535120A (en) * | 2014-12-21 | 2015-04-22 | 宁波市精诚科技有限公司 | Anti-blockage electronic metering water meter |
| CN104535120B (en) * | 2014-12-21 | 2017-08-25 | 宁波市精诚科技股份有限公司 | A kind of water meter of anticlogging electronic measurement |
| CN105890703A (en) * | 2015-10-28 | 2016-08-24 | 安徽翼迈科技股份有限公司 | Dry water meter |
| CN105352557A (en) * | 2015-11-26 | 2016-02-24 | 宁波市埃美仪表制造有限公司 | Double-magnetic-steel transmission device for water meter |
| CN106197622A (en) * | 2016-08-25 | 2016-12-07 | 成都秦川科技发展有限公司 | Water meter indication error regulation system |
| CN106197622B (en) * | 2016-08-25 | 2023-04-07 | 成都秦川物联网科技股份有限公司 | Water meter indication error adjusting system |
| CN111637934A (en) * | 2020-04-21 | 2020-09-08 | 安徽丹凤缘科技有限公司 | Metering device of NB-IOT thing networking water gauge |
| CN113432663A (en) * | 2021-06-25 | 2021-09-24 | 淄博海源电子科技有限公司 | Impeller-free water meter with self-cleaning function |
| CN113432663B (en) * | 2021-06-25 | 2022-06-28 | 淄博海源电子科技有限公司 | Impeller-free water meter with self-cleaning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20140304 |