CN215930991U

CN215930991U - Disc-fogging-prevention structure in water meter, movement of disc-fogging-prevention structure and water meter

Info

Publication number: CN215930991U
Application number: CN202121913445.0U
Authority: CN
Inventors: 付卫红; 容卓
Original assignee: Dongguan Aona Water Technology Co ltd
Current assignee: Dongguan Aona Water Technology Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-03-01
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a disc fogging prevention structure in a water meter, which relates to the field of water meters and comprises a gear box and a counter; the counter comprises a counter lower clamping plate, a counter mounting plate and a gear transmission structure, wherein the gear transmission structure is arranged between the counter lower clamping plate and the counter mounting plate; a first avoidance hole penetrating through the gear box is formed in the bottom surface of the interior of the gear box; a second passing hole is formed in the bottom of the lower clamp plate of the counter in a penetrating mode; a raised annular bulge is arranged on the bottom surface inside the gear box and at the position of the outer ring of the first avoidance hole; an annular bulge is arranged at the bottom of the lower clamp plate of the counter and at the position of the outer ring of the second avoidance hole; the inner ring of the annular bulge is in interference fit with the outer ring of the annular bulge; the utility model also discloses a water meter movement and a water meter; the utility model mainly solves the problem that the existing water meter has fog because the air exists between the dial and the meter glass because the dial is not filled with water.

Description

Disc-fogging-prevention structure in water meter, movement of disc-fogging-prevention structure and water meter

Technical Field

The utility model relates to the field of water meters, in particular to a disc fogging prevention structure in a water meter, a movement of the disc fogging prevention structure and the water meter.

Background

The core of water gauge among the prior art all includes gear box and counter, and wherein the counter contains a plurality of pointer dishes to in people observe the water gauge reading, fill up the leakproofness between water and the counter and easily leak because of gear box and counter between water gauge circle and the table glass among the current structure, when the difference in temperature changes, the phenomenon that the circle hazed will appear owing to there being the air in the inside of circle, the staff of being inconvenient in observes the reading of water gauge, consequently, the inner structure of current water gauge remains to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, provides a disc fogging prevention structure in a water meter, a movement of the disc fogging prevention structure and the water meter, and solves the technical problem that fogging occurs between a disc and a meter glass of the existing water meter due to the fact that air exists when water is not filled in the disc and the meter glass.

In order to achieve the above object, the present invention provides a structure for preventing fogging of a water meter dial, which comprises a gear box and a counter; the counter comprises a counter lower clamping plate, a counter mounting plate and a gear transmission structure, wherein the gear transmission structure is arranged between the counter lower clamping plate and the counter mounting plate; a first avoidance hole which penetrates through the gear box and is used for avoiding the impeller shaft is formed in the bottom surface of the inner part of the gear box; a second avoidance hole which penetrates through the counter lower clamping plate and is used for avoiding the impeller shaft is formed in the bottom of the counter lower clamping plate; an annular bulge protruding upwards is arranged on the bottom surface inside the gear box and at the position of the outer ring of the first avoidance hole; an annular bulge is arranged at the bottom of the lower clamp plate of the counter and at the position of the outer ring of the second avoidance hole; the inner ring of the annular bulge part is in interference fit with the annular bulge outer ring, and at the moment, the counter mounting plate is abutted against one end of the gear box and the counter lower clamping plate and the gear transmission structure are both embedded into the gear box.

Preferably, the bottom surface of the inside of gear box is provided with protruding strengthening rib.

Preferably, the reinforcing ribs comprise a first annular reinforcing rib, a second annular reinforcing rib and a plurality of bar-shaped reinforcing ribs, and each bar-shaped reinforcing rib is connected with the first annular reinforcing rib and the second annular reinforcing rib.

Compared with the prior art, the dial plate fogging prevention structure in the water meter has the beneficial effects that:

the inner ring of the annular bulge on the lower counter plate is in interference fit with the outer ring of the annular bulge on the gear box, so that the sealing property between the lower counter plate and the gear box is ensured, water in the inner dial of the movement cannot flow backwards to the lower part of the gear box from the first avoiding hole, the problem of air in the inner dial of the counter is avoided, the phenomenon of fogging in the inner dial is solved, and meanwhile, the precision of water metering is improved.

In order to achieve the purpose, the utility model also provides a water meter movement, which comprises a filter screen, an impeller box, an impeller shaft, a gear box and a counter; the assembly structure of the gear box and the counter of the water meter movement is adopted between the gear box and the counter; the filter screen is sleeved on the outer wall of the impeller box; the impeller is positioned in the impeller box and rotates; the impeller shaft and the impeller are coaxially fixed and sequentially penetrate through the first avoidance hole and the second avoidance hole to be in transmission connection with the gear transmission structure in the counter; the gear box is arranged above the impeller box.

Preferably, a gear tooth part is arranged on the impeller shaft at a position close to the top end, and the gear tooth part is in transmission connection with a gear transmission structure in the counter.

Preferably, the diameter D1 of the inner cavity of the impeller box is 47.7 +/-0.1 mm.

Preferably, the side of the impeller box is provided with a plurality of water inlets which are distributed in a circumferential array and respectively penetrate through the inner cavity, wherein the diameter D2 of a tangent circle tangent to the water inlet directions of the water inlets is 42.8 +/-0.1 mm.

Compared with the prior art, the water meter movement provided by the utility model has the beneficial effects that: the water meter dial on the machine core can not generate the phenomenon of fogging, and the precision of the water meter degree is higher.

In order to achieve the purpose, the utility model also provides a water meter, which comprises a shell, a glass meter cover, a sealing ring, an annular middle cover and the water meter core, wherein the water meter core is arranged in the shell; one end of the shell is provided with a water inlet, and the other end of the shell is provided with a water outlet.

Preferably, the wireless communication instrument further comprises a non-magnetic sensing pointer penetrating out of the inner part of the movement to the outer part of the glass meter cover and a wireless communication transmission module arranged above the glass meter cover, wherein the non-magnetic sensing pointer is electrically and signal-connected with the wireless communication transmission module.

Preferably, the wireless communication transmission module is connected with the annular middle cover in a buckling mode.

Compared with the prior art, the water meter provided by the utility model has the beneficial effects that: the water meter dial plate on the water meter can not generate the phenomenon of fogging, and the precision of water metering degree is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a front view of the first embodiment;

FIG. 3 is a cross-sectional view taken along line A-A of the first embodiment;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is an exploded view of the first embodiment;

FIG. 6 is an exploded view of the first embodiment at another angle;

FIG. 7 is a front view of the impeller cartridge of the first embodiment;

FIG. 8 is a cross-sectional view taken at A-A of FIG. 7;

FIG. 9 is a cross-sectional view taken at B-B of FIG. 7;

FIG. 10 is a schematic structural view of the second embodiment;

FIG. 11 is an exploded view of the second embodiment;

fig. 12 is a further exploded view of the second embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-6, the present embodiment provides a water meter movement, which includes a filter screen 21, an impeller box 22, an impeller 23, an impeller shaft 24, a gear box 25 and a counter 26.

Wherein the gear box 25 is provided at the inner bottom surface thereof with a first escape hole 252. Wherein the impeller shaft 24 is provided with a gear portion 241 at a position near the tip end. Wherein the counter 26 includes a counter lower clamping plate 261, a counter mounting plate 262 and a gear transmission structure 263. Wherein the bottom of the counter lower clamping plate 261 is provided with a second avoiding hole 2612, and the gear transmission structure 263 is installed between the counter lower clamping plate 261 and the counter mounting plate 262. Specifically, the gear transmission structure 263 includes a plurality of rotating shafts and gears sleeved on the rotating shafts, and when the transmission is performed, the impeller shaft 24 sequentially passes through the first avoiding hole 252 and the second avoiding hole 2612, and then the gear teeth 241 on the impeller shaft are engaged with the driving gear of the gear transmission structure 263 for transmission, so that the dial pointer can be driven to rotate through the gear transmission. The counter mounting plate 262 is mainly used for mounting the dial, and the counter lower clamping plate 261 is mainly used for mounting each rotating shaft of the gear transmission structure 263. The above are all the prior art, and the description is not repeated.

Wherein an annular protrusion 251 protruding upward is provided on the bottom surface inside the gear box 25 at a position outside the first avoiding hole 252. An annular protrusion 2611 is disposed at the bottom of the counter lower clamping plate 261 and at a position outside the second avoiding hole 2612.

When in assembly, the impeller box 22 is sleeved into the filter screen 21 from top to bottom, the impeller 23 is placed into the impeller box 22 and can be driven by water flow to rotate, wherein the impeller shaft 24 and the impeller 23 are coaxially fixed, wherein the gear box 25 is fixed above the impeller box 22, and then the counter 26 is integrally assembled, then, the counter 26 and the gear box 25 are mounted through the interference fit of the inner ring of the annular bulge 2611 on the counter lower clamping plate 261 and the outer ring of the annular bulge 251 on the gear box 25, at the moment, the counter lower clamping plate 261 and the gear box 25 have very reliable sealing performance, so that water in the dial of the machine core cannot flow backwards to the lower part of the gear box 25 from the first avoiding hole 252, the problem that air exists in the dial on the counter 26 is solved, thereby solving the problem of fogging inside the dial and improving the precision of water metering. After the gear box 25 and the counter 26 are assembled, the counter mounting plate 262 will abut against one end of the gear box 25, and at this time, the counter lower clamping plate 261 and the gear transmission structure 263 are both embedded into the gear box 25.

The working principle is as follows: the filter screen 21 can screen out rust, sand, iron filings and other foreign matters, and then flows in from a plurality of water inlets 221 on the side of the impeller box 22 below, and hydroenergy strikes the blades on the impeller 23 from all directions, makes the blades rotate, and then drives the rivers spiral-up, finally discharges from the basin of top, when the impeller 23 rotates, drives the gear drive structure 263 in the counter 26 through the impeller shaft 24, and then carries out the count of the water yield.

More specifically, referring to fig. 5, a raised rib is disposed on the bottom surface of the gear box 25 to enhance the strength of the gear box 25. In this embodiment, the reinforcing ribs include a first annular reinforcing rib 253, a second annular reinforcing rib 254, and a plurality of bar-shaped reinforcing ribs 255, wherein the first annular reinforcing rib 253 and the second annular reinforcing rib 254 are both of a coaxial design, and each bar-shaped reinforcing rib 255 connects the first annular reinforcing rib 253 and the second annular reinforcing rib 254. Of course, the structural design of the reinforcing rib can be in other manners.

In addition, referring to fig. 7-9, the diameter D1 of the inner cavity of the impeller box 22 of this embodiment is 47.7 mm. The side of the impeller box 22 is provided with a plurality of water inlets 221 distributed in a circumferential array and respectively penetrating through the inner cavity, wherein the diameter D2 of a tangent circle 222 tangent to the water inlet direction of the plurality of water inlets 221 is 42.8mm, and the number of the water inlets 221 is ten. Carry out such structural design through the quantity to D1 numerical value, D2 numerical value and water inlet for can unify DN15 and DN 20's core, thereby improve the production efficiency of two kinds of specifications water gauge cores of DN15 and DN20, and then improve the production efficiency of water gauge, reduce the manufacturing cost of water gauge.

Example two

Referring to fig. 10-12, the present invention further provides a water meter, which includes a housing 1, a glass cover 3, a sealing ring 4, a stainless steel ring middle cover 5, a non-magnetic sensing pointer 6, a wireless communication transmission module 7, and the water meter movement 2 implementing the first embodiment.

Wherein no magnetism sensing pointer 6 wears out to the outside of glass table lid 3 from the inside of water gauge core 2 and is used for transmitting the reading information in the water gauge core 2 to wireless communication transmission module 7, specifically speaking, no magnetism sensing pointer 6 is a stainless steel piece, and after the wireless communication transmission module 7 cooperation external at the top, because there is electrified coil in the place of being in contact with no magnetism sensing pointer 6 on the wireless communication transmission module 7, it can carry out the magnetic field cutting with electrified coil when no magnetism sensing pointer 6 rotates because of the water measurement to send pulse signal. The circuit board inside the wireless communication transmission module 7 can determine the water consumption according to the number of the pulse signals. When the wireless communication transmission module 7 is assembled, basic dial data of the water meter is input into the wireless communication transmission module 7 in advance, and the basic dial data are transmitted synchronously all the time after the assembly.

Wherein, one end of the shell 1 is provided with a water inlet 11, the other end of the shell 1 is provided with a water outlet 12, and the outer side surface of the shell 1 is provided with a waterway inlet and outlet indication arrow 13. By arranging the indication arrow 13, workers can know the water inlet 11 and the water outlet 12 of the water meter intuitively, so that the field installation efficiency is improved.

During installation, firstly, the water meter movement 2 is installed inside the shell 1, then the sealing ring 4 is laid on the top of the shell 1, then the glass meter cover 3 is placed on the sealing ring 4, the annular middle cover 5 is screwed into the external thread on the outer wall of the shell 1, after the annular middle cover 5 is screwed in place, downward pressure is applied to the glass meter cover 3 (in order to avoid the glass meter cover 3 from being broken due to too large stress, 2 gaskets 8 are additionally arranged between the glass meter cover 3 and the annular middle cover 5 in the embodiment), the glass meter cover 3 is sealed on the opening of the shell 1 through the compression sealing ring 4, and finally the wireless communication transmission module 7 is connected with the annular middle cover 5 in a buckling connection mode.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. A structure for preventing fogging of a water meter dial comprises a gear box (25) and a counter (26); the counter (26) comprises a counter lower clamping plate (261), a counter mounting plate (262) and a gear transmission structure (263), wherein the gear transmission structure (263) is mounted between the counter lower clamping plate (261) and the counter mounting plate (262);

a first avoidance hole (252) which penetrates through the gear box (25) and is used for avoiding the impeller shaft is formed in the bottom surface of the inner part of the gear box (25); a second avoidance hole (2612) which penetrates through the counter lower clamping plate (261) and is used for avoiding the impeller shaft is formed in the bottom of the counter lower clamping plate (261); the method is characterized in that:

an annular bulge (251) which is bulged upwards is arranged on the bottom surface of the inner part of the gear box (25) and at the position of the outer ring of the first avoidance hole (252);

an annular bulge (2611) is arranged at the bottom of the counter lower clamping plate (261) and at the position of the outer ring of the second avoidance hole (2612);

the inner ring of the annular bulge (2611) is in interference fit with the outer ring of the annular bulge (251), at the moment, the counter mounting plate (262) abuts against one end of the gear box (25), and the counter lower clamping plate (261) and the gear transmission structure (263) are embedded into the gear box (25).

2. A fogging prevention structure for a water meter on a dial according to claim 1, wherein: and a raised reinforcing rib is arranged on the bottom surface inside the gear box (25).

3. A fogging prevention structure for a water meter on a dial according to claim 2, wherein: the reinforcing ribs comprise a first annular reinforcing rib (253), a second annular reinforcing rib (254) and a plurality of bar-shaped reinforcing ribs (255), and each bar-shaped reinforcing rib (255) is connected with the first annular reinforcing rib (253) and the second annular reinforcing rib (254).

4. A water meter movement is characterized by comprising a filter screen (21), an impeller box (22), an impeller (23), an impeller shaft (24), a gear box (25) and a counter (26); a structure for preventing the fogging of the dial in the water meter according to any one of claims 1 to 3 is arranged between the gear box (25) and the counter (26);

the filter screen (21) is sleeved on the outer wall of the impeller box (22); the impeller (23) is positioned inside the impeller box (22) and performs rotary motion; the impeller shaft (24) and the impeller (23) are coaxially fixed and sequentially penetrate through the first avoidance hole (252) and the second avoidance hole (2612) to be in transmission connection with a gear transmission structure (263) in the counter (26); the gear box (25) is arranged above the impeller box (22).

5. A water meter movement according to claim 4, wherein a wheel toothing (241) is provided on the impeller shaft (24) near the top end, said wheel toothing (241) being in driving connection with a gear drive arrangement (263) in said counter (26).

6. A water meter movement according to claim 4, wherein the diameter D1 of the chamber in the impeller box (22) is 47.7 ± 0.1 mm.

7. A water meter movement according to claim 6, wherein the impeller box (22) is provided at a side thereof with a plurality of water inlets (221) arranged in a circumferential array and penetrating into the inner chamber, respectively, wherein a tangent circle (222) tangent to the water inlet direction of the plurality of water inlets (221) has a diameter D2 of 42.8 ± 0.1 mm.

8. A water meter, characterized in that, it includes the outer casing (1), the glass table cover (3), the seal ring (4) and the annular middle cover (5), it also includes the water meter movement (2) of any claim 4-7, the said water meter movement (2) is installed inside the outer casing (1), the said annular middle cover (5) is connected with the outer wall screw thread of the outer casing (1), so that the said glass table cover (3) is through compressing the said seal ring (4) and outer casing (1) sealing connection at the top of the outer casing (1);

one end of the shell (1) is provided with a water inlet (11), and the other end of the shell (1) is provided with a water outlet (12).

9. A water meter according to claim 8, further comprising a non-magnetic sensing pointer (6) extending from the inside of the movement (2) to the outside of the glass cover (3) and a wireless communication transmission module (7) mounted above the glass cover (3), wherein the non-magnetic sensing pointer (6) is in electrical signal connection with the wireless communication transmission module (7).

10. A water meter as claimed in claim 9, wherein said wireless communication transmission module (7) is snap-fitted to said annular middle housing (5).