CN208937109U - Improved mechanical sensor type electronic water meter - Google Patents

Abstract

The utility model is a kind of improved mechanical sensor type electronic water meter, and structure includes that circuit box, base table, outlet hose and pvc pipe connect；Wherein circuit box is installed on the upper surface of base table, and the side of circuit box is equipped with outlet hose, and the end of outlet hose connects equipped with pvc pipe；It is characterized by: the surface of the base table internal machine core upper press cover is equipped with 1 boss.The advantages of the utility model: 1) longevity of service, not by the infringement of moist working environment；There is anti-magnetic disturbance simultaneously, prevent illegal disassembly, the functions such as dust protection pollution；2) accuracy of water meter is not influenced by variation in water pressure, and the sensitive wear-resisting, stabilization of speed of impeller, reading precisely, while guaranteeing that impeller is not interfered by extraneous high-intensity magnetic field using antimagnetic gasket construction；3) it is designed using boss, improves sealing effect, read more stable.

Description

Improved mechanical sensor type electronic water meter

Technical field

The utility model relates to a kind of improved mechanical sensor type electronic water meters, belong to flow measurement equipment technology Field.

Background technique

Currently, mechanical water meter is widely used in factory, workshop and urbanite water consumption pipeline, traditional artificial number reading method meter Water gauge flow is time-consuming and laborious, has the intelligence sensor formula water meter that flow is read using sensor, such as number of patent application at present A kind of mechanical pick-up device formula electronic water meter is disclosed for 201810654236.5 patent of invention, provides a kind of low energy consumption, anti- Magnetic efficiency is higher, the preferable electronic water meter of sealing performance.

In the assembling process of the base table part of mechanical pick-up device formula electronic water meter, at the sealing between top cover and upper press cover It is easy to leak, the reason is that the locating slot between top cover and upper press cover is very shallow, top cover is easy to skid off the locating slot of upper press cover, leads Fine and close seal failure, it is inaccurate so as to cause meter reading, water meter running is even influenced when serious, leads to pipe leakage.

Summary of the invention

The purpose of this utility model aims to solve the problem that drawbacks described above present in existing electronic water meter, and it is steady to provide a kind of work Improved mechanical sensor type electronic water meter fixed, sealing performance is excellent.

The technical solution of the utility model: improved mechanical sensor type electronic water meter, structure include circuit box, Base table, outlet hose and pvc pipe connect；Wherein circuit box is installed on the upper surface of base table, and the side of circuit box is equipped with outlet hose, The end of outlet hose connects equipped with pvc pipe；It is characterized by: the surface of the base table internal machine core upper press cover is equipped with 1 boss.

The advantages of the utility model:

1) longevity of service, not by the infringement of moist working environment；There is anti-magnetic disturbance simultaneously, prevent illegal disassembly, anti-gray The functions such as dustiness dye；

2) accuracy of water meter is not influenced by variation in water pressure, and the sensitive wear-resisting, stabilization of speed of impeller, reading are accurate, simultaneously Guarantee that impeller is not interfered by extraneous high-intensity magnetic field using antimagnetic gasket construction；

3) it is designed using boss, improves sealing effect, read more stable.

Detailed description of the invention

Attached drawing 1 is the structural schematic diagram of improved mechanical sensor type electronic water meter.

Attached drawing 2 is the structural schematic diagram of mechanical base table.

Attached drawing 3 is cassette mechanism structure schematic diagram.

Attached drawing 4 is top cover and upper press cover contact sealed structural schematic diagram.

1 in figure be circuit box, 2 be base table, 3 be outlet hose, 4 be pvc pipe connect, 5 be clamp nut, 6 be non-slip mat, 7 it is impeller box, 8 be watchcase, 9 be valve seat, 10 be valve, 11 be steel pad, 12-1 be top cover, 12-2 is under upper press cover, 12-3 are Gland, 13 be impeller, 14 be weeper, 15 be water inlet, 16 be water outlet, 17 be O-ring seal, 18 be antimagnetic washer, 19 It is boss.

Specific embodiment

As shown in Figure 1, improved mechanical sensor type electronic water meter, structure includes circuit box 1, base table 2, outlet hose 3 and pvc pipe connect 4；Wherein circuit box 1 is installed on the upper surface of base table 2, and the side of circuit box 1 is equipped with outlet hose 3, and outlet is soft The end of pipe 3 is equipped with pvc pipe and connects 4；It is characterized by: the surface of the 2 internal machine core upper press cover of base table is equipped with 1 boss 19.

As shown in Fig. 2, the base table 2 is measuring part of the mechanical pick-up device formula electronic water meter to flow, structure packet Include clamp nut 5, non-slip mat 6, watchcase 8, steel pad 11, weeper 14, water inlet 15, water outlet 16 and machine core；Wherein watchcase 8 Left side is equipped with water outlet 16, and right side is equipped with water inlet 15, and machine core is equipped in the central cavity of watchcase 8, and the side of machine core is equipped with drop Water hole 14；The upper surface of machine core is equipped with steel pad 11 and non-slip mat 6, and fixed by clamp nut 5.

As shown in figure 3, the machine core includes impeller box 7, valve seat 9, valve 10, top cover 12-1, upper press cover 12-2, pushes Cover 12-3, impeller 13, O-ring seal 17, antimagnetic washer 18, boss 19；Wherein valve 10 is set to machine core bottom, 10 top of valve It is impeller box 7 above valve seat 9 for valve seat 9, impeller 13 is set at the center through hole of impeller box 7, is equipped on the outside of the axle center of impeller 13 Antimagnetic washer 18；It is respectively equipped with top cover 12-1, upper press cover 12-2 and lower cover 12-3 from top to bottom at the top of machine core, wherein upper press cover The upper face center of 12-2 is equipped with boss 19, and the outside of boss 19 is equipped with a circle groove, internal mounting O-shaped sealing ring 17.

As shown in figure 4, the diameter of boss 19 is slightly less than the intracavity diameter of top cover 12-1, so that top cover 12-1 after mounting can It is enough stuck in the center of upper press cover 12-2, and can not be moved in the horizontal direction, ensure that sealing herein.

Bar magnet is embedded at the top of the impeller, impeller uses single thimble agate set, the small steel ball structure of small bar magnet, impeller Inlay stabilizer in lower end；Symmetrical gas vent there are two being set in the position vertical direction below the agate set of impeller, for arranging Except unstable interference, guarantee the stabilization of the measuring accuracy of mechanical pick-up device formula electronic water meter.

The magnetic-tunnel-effect sensor protected by Antimagnetic hood is equipped with inside the circuit box 1, top is equipped with lithium battery Main circuit board, main circuit board top are liquid crystal displays.The construction and number of patent application of circuit box 1 are 201810654236.5 Circuit box construction in patent of invention " mechanical pick-up device formula electronic water meter " is identical.

In actual work, water flow is flowed by the right side water inlet of watchcase in figure, from the valve seat lower part strainer mouth of machine core, is pushed open Valve flows into impeller box.Wheel rotation in water jet propulsion impeller box, the left side of watchcase is discharged from impeller box top outflow figure Mouthful；The top of impeller is embedded with the high-intensitive small magnet stick of samarium-cobalt material, wheel rotation, and the magnetic field that bar magnet generates also just rotates, Magnetic field overturning triggers the magnetic-tunnel-effect sensor in its top water meter circuit box, generates pulse signal, wakes up CPU work, meter The cumulative water of number simultaneously stores；When the water flow for entering watchcase is varied down to 8 ls/h hereinafter, being not enough to push open the valve of machine core, valve It closes, water flow all flows into impeller box from the aperture of valve seat wall, pushes directly on wheel rotation；Since electronic counting-type water meter can Curve interpolation stoichiometric coefficient is measured along impeller to provide, so the small flow to drip can also calculate flow by the coefficient to drip.

When water meter outlet conduit is all closed, when not having stationary flow, hydraulic pressure meeting fluctuating change or neighbours are held in pipeline It opens fire hose valve and generates water hammer, impeller then can be rotated irregularly, and water meter circuit box inner sensor equally generates pulse signal.Due to CPU inside circuit box 1 can calculate to Millisecond, so as to accurately judge that impeller is at the uniform velocity the Cycle accurate of wheel rotation Movement or non-uniform movement, if uniform motion, then accumulated counts, non-uniform movement then without counting, become so as to avoid hydraulic pressure " accidentally walking " that change or water hammer generate.

Top cover of the gland by stainless steel, the upper press cover of engineering plastics production, lower cover composition.Top cover and upper press cover are watchcases Seal member suitable for reading, it can bear the pressure of 2MPa；Lower cover is due to being in the water of water meter seal member, when hydraulic pressure becomes When change, it and impeller box are constituted not by influence of hydraulic pressure, the metering water channel of shape are kept fixed, so as to avoid inner pressed water Disadvantage of the table by pressure variations influence accuracy of water meter；It is embedded in an antimagnetic washer on upper press cover inner hole wall and shields impeller magnetic The downward magnetic field of stick, so that the iron rust of the flowing water below impeller not will receive the downward magnetic field suction of impeller bar magnet, thus While magnetic field equally downward to impeller bar magnet reaches shield effectiveness, and it is strong to weaken the upward magnetic field signal of impeller bar magnet Degree.

Single thimble agate set that impeller mechanism takes, the structure of the small small steel ball of bar magnet, greatly reduces than great material Volume, thus i.e. guarantee impeller entirety specific gravity mitigate to 1.065 grams/cc, close to the specific gravity of water, ensure that movement portion The coefficient of friction of part is small, and rigidity and wear-resisting property are high；The bar magnet of samarium-cobalt material is small in size, magnetic field strength up to 2200 Gausses, It ensure that the redundancy in magnetic field needed for the sensor of circuit box reaches 4-5 times.The depth of long neck bore guarantees flowing water portion below impeller The magnetic field strength of position is almost nil, avoids the fatal drawback of dry-type meter impeller magnet absorption iron rust obstruction impeller movement；Leaf Stabilizer is inlayed in the lower end of wheel, and impeller, which is swung, when mass-flow being avoided to impact influences accuracy of water meter.

Lower part in circuit box is the magnetic-tunnel-effect sensor protected by Antimagnetic hood, and top is equipped with the main electricity of lithium battery Road plate, main circuit board top are equipped with liquid crystal display；The structure of circuit box provides waterproof, antimagnetic, tamper, the functions such as dust-proof, Single board computer in circuit box is super low-power consumption technology, and the power consumption of mechanical pick-up device formula electronic water meter only has 8 microamperes, built-in lithium electricity Pond theoretically can be used 45 years or more.The kilowatt meter reading-out system that mechanical pick-up device formula electronic water meter is constituted with Internet of Things meter reading case can connect It is continuous to use 6-12 or more.

Claims (4)

1. improved mechanical sensor type electronic water meter, structure includes circuit box (1), base table (2), outlet hose (3) and PVC Pipe connects (4)；Wherein circuit box (1) is installed on the upper surface of base table (2), and the side of circuit box (1) is equipped with outlet hose (3), out The end of line hose (3) is equipped with pvc pipe and connects (4)；It is characterized by: the surface of base table (2) the internal machine core upper press cover is equipped with 1 A boss (19).

2. improved mechanical sensor type electronic water meter according to claim 1, it is characterized in that the base table (2) includes Clamp nut (5), non-slip mat (6), watchcase (8), steel pad (11), weeper (14), water inlet (15), water outlet (16) and machine Core；Wherein the left side of watchcase (8) is equipped with water outlet (16), and right side is equipped with water inlet (15), is equipped in the central cavity of watchcase (8) The side of machine core, machine core is equipped with weeper (14)；The upper surface of machine core is equipped with steel pad (11) and non-slip mat (6) from bottom to top, and It is fixed by clamp nut (5).

3. improved mechanical sensor type electronic water meter according to claim 1, it is characterized in that the machine core includes leaf It takes turns box (7), valve seat (9), valve (10), top cover (12-1), upper press cover (12-2), lower cover (12-3), impeller (13), O-shaped close Seal (17), antimagnetic washer (18), boss (19)；Wherein valve (10) is set to machine core bottom, is valve seat above valve (10) It (9), is impeller box (7) that impeller (13) is set at the center through hole of impeller box (7), outside the axle center of impeller (13) above valve seat (9) Side is equipped with antimagnetic washer (18)；It is respectively equipped with top cover (12-1), upper press cover (12-2) and lower cover from top to bottom at the top of machine core (12-3), wherein the upper face center of upper press cover (12-2) is equipped with boss (19), and the outside of boss (19) is equipped with a circle groove, interior Portion's mounting O-shaped sealing ring (17).

4. improved mechanical sensor type electronic water meter according to claim 3, it is characterized in that the boss (19) Diameter is slightly less than the intracavity diameter of top cover (12-1), and top cover (12-1) is made to be fixed on the center of gland (12-2) after mounting.