CN219141932U - Antifreezing water meter - Google Patents

Abstract

The utility model provides an antifreezing water meter which sequentially comprises a watchcase, a machine core, an upper clamping plate, a dial, a transparent window and a watch cover from bottom to top, wherein the transparent window is made of transparent plastic, a character wheel reading block is arranged at the bottom of the transparent window, the transparent window is concavely formed into a bubble cavity at two sides of the character wheel reading block, a character wheel window is arranged at the top of the machine core, a character wheel window sealing ring is arranged at the top of the character wheel window, and the top of the character wheel window sealing ring penetrates through the upper clamping plate and the dial and is tightly attached to the bottom of the character wheel reading block. According to the utility model, the bubble cavity is arranged at the bottom of the transparent window, so that bubbles are naturally formed at the top end in the production, assembly and use of the water meter, when the water in the water meter is frozen and expanded, the internal pressure is increased, the bubbles are compressed and reduced, and thus, the space is released, and the deformation of the transparent window is reduced; compared with the traditional antifreezing water meter adopting a mechanical structure for pressure relief, the utility model only changes the structure of the transparent window, does not increase the mechanical structure, and has the advantages of simple structure, convenient assembly, high reliability in later use and the like.

Description

Antifreezing water meter

Technical Field

The utility model relates to a water meter, in particular to an antifreezing water meter.

Background

Most of the water meters are installed outdoors, so that the water meter is frozen in winter. Especially in the south of China, after a large chill, the frost crack damage of large-area water meter glass is often caused, and the water consumption of residents is affected. In addition, in the environment of the freezing, the production, transportation and replacement of the water meter are very difficult, so that the period for recovering normal water supply is generally longer, and inconvenience is brought to the daily life of common people.

In the prior art, although there are some anti-freezing water meters designed for the above situations, such as CN211178624U and CN209485468U, these water meters are all mechanical structures such as springs added on the basis of common water meters to realize the pressure-eliminating function during icing, so that the defects of complex structure, large volume of the water meter, increased failure rate and the like are generated.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to provide an antifreezing water meter, which can reduce the deformation of the water meter caused by ice formation and expansion of water in the water meter and has the advantages of simple structure, convenience in assembly, high reliability in later use and the like. In order to achieve the above purpose, the present utility model adopts the following technical scheme:

(II) technical scheme

The utility model provides an antifreezing water meter, includes watchcase, core, punch holder, dial, transparent window, table cover from bottom to top in proper order, transparent window is made by transparent plastics, and its bottom is equipped with the character wheel and reads the piece, transparent window is in the character wheel and is read piece both sides indent formation bubble chamber, the core top is equipped with the character wheel window, the character wheel window top is equipped with the character wheel window sealing washer, the character wheel window sealing washer top passes punch holder and dial and with the character wheel reads the piece bottom and hugs closely.

Further, a circle of flange is arranged at the bottom of the seal ring of the word wheel window, and the flange is clamped between the upper clamping plate and the word wheel window.

Further, the whole transparent window is in an upwards arched arc shape.

Further, the top of the upper clamping plate is provided with a communication groove, and the communication groove is used for communicating the space inside the movement with the space between the transparent window and the upper clamping plate.

Further, the communication groove is located below the scale.

Further, the transparent window is made of transparent nylon.

(III) beneficial effects

Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular:

1. the transparent window is made of transparent plastics such as transparent nylon, can generate deformation to a certain extent in the water meter under the condition of pressure increase caused by icing without damage, and has stronger compression capacity compared with the transparent window made of glass materials; meanwhile, the whole transparent window is in an upward arched arc shape, so that when water in the water meter is frozen and expanded, the transparent window is arched upwards in advance, the pressure generated by freezing is released, and the water meter is prevented from being damaged.

2. The bottom of the transparent window is concave inwards to form a bubble cavity, so that a cavity which is not filled with water is naturally formed at the top end of the water meter in the production, assembly and use of the water meter, and the bubble cavity is usually in a bubble form under the transparent window; when water in the watch is frozen and expanded, the internal pressure is increased, and the air bubbles are compressed and reduced by utilizing the characteristic of compressibility of air, so that the space is released, the deformation of the transparent window is reduced, and the shape recovery of the transparent window after thawing is facilitated; compared with the traditional antifreezing water meter adopting a mechanical structure for pressure relief, the utility model only changes the structure of the transparent window, does not increase the mechanical structure, and has the advantages of simple structure, convenient assembly, high reliability in later use and the like.

3. The top of the character wheel window is provided with a character wheel window sealing ring, and the top of the character wheel window sealing ring is tightly attached to the bottom of the character wheel reading block, so that bubbles are prevented from entering between the character wheel window and the transparent window to influence meter reading; meanwhile, the character wheel reading block divides the bubble cavity into two smaller cavities, and the outer walls of the two sides of the character wheel reading block are in a vertical edge shape, so that the edge of the bubble cavity is close to a right angle, bubbles are prevented from escaping from the bubble cavity, and the stability of the bubble cavity is improved.

4. The top of the upper clamping plate is penetrated with a communication groove, and the communication groove communicates the space inside the movement with the space between the transparent window and the upper clamping plate, so that the deformation of the upper clamping plate is effectively relieved, and the damage rate of the water meter after being frozen is reduced; meanwhile, the communicating groove is positioned below the scale, and the scale is utilized to block water flow, so that bubbles in the bubble cavity are not easy to discharge.

Drawings

The utility model will be further described with reference to the accompanying drawings, in conjunction with examples.

FIG. 1 is a schematic diagram of the overall structure of an embodiment;

FIG. 2 is an exploded view of an embodiment;

FIG. 3 is a cross-sectional view of the second embodiment in normal use;

FIG. 4 is a cross-sectional view of the second embodiment in the case of ice formation on the meter;

FIG. 5 is a schematic view of the bottom structure of a transparent window according to the second embodiment;

FIG. 6 is a schematic diagram of the position of a seal ring of a wheel window in the second embodiment;

fig. 7 is a schematic view showing the position of the communication groove in the third embodiment.

Reference numerals illustrate:

1. a watch case;	2. a movement;
		21. a character wheel window;	22. a seal ring of a word wheel window;
3. an upper clamping plate;	31. a communication groove;
		4. a dial;	5. a movement sealing ring;
6. a transparent window;	61. a character wheel reading block;
		62. a bubble chamber;	7. a watch case gasket;
8. a watch case;	9. and (5) air bubbles.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model is further described below with reference to the drawings and detailed description.

Embodiment 1,

Referring to fig. 1 and 2, an anti-freezing water meter sequentially comprises a case 1, a movement 2, an upper clamping plate 3, a dial 4, a transparent window 6 and a meter cover 8 from bottom to top, wherein: the movement 2 is positioned in the watchcase 1, the bottom of the movement 2 is an impeller assembly, and the top is a counter and a character wheel window 21; the upper clamping plate 3 is embedded at the top of the movement 2 and is also positioned in the watchcase 1, and a plurality of pointers are arranged on the upper surface of the upper clamping plate 3; the dial 4 is arranged at the top of the upper clamping plate 3, and through holes for observing the readings of the character wheel window 21 are formed in the upper clamping plate 3 and the dial 4 at the position right above the character wheel window 21; the transparent window 6 is arranged above the upper clamping plate 3 and the dial 4, and a movement sealing ring 5 is arranged between the transparent window 6 and the watchcase 1; the watch case 8 is arranged on the top of the transparent window 6 and is in threaded connection with the watch case 1, and a watch case gasket 7 is arranged between the watch case 8 and the transparent window 6.

In order to achieve the anti-freezing function of the water meter without increasing the mechanical structure, in the embodiment, the transparent window 6 is made of transparent plastics such as transparent nylon, and can be deformed to a certain extent in the water meter under the condition of pressure increase caused by freezing without being damaged, and compared with glass materials, the transparent window 6 made of the transparent plastics has stronger compression capacity.

In order to ensure that the transparent window 6 deforms firstly when the pressure is increased, other parts are prevented from being deformed by compression, the whole transparent window 6 is in an upward arched arc shape, so that water in the water meter is firstly arched upwards when ice is formed and expands, the pressure generated by the ice is released, and the water meter is prevented from being damaged.

Embodiment II,

In order to further increase the pressure-resistant capability of the water meter, as shown in fig. 3-5, on the basis of the first embodiment, the bottom of the transparent window 6 in this embodiment is concaved inwards to form a bubble cavity 62, so that in the production, assembly and use of the water meter, a cavity which is not filled with water is naturally formed at the top end of the water meter, and the cavity usually exists under the transparent window 6 in the form of bubbles 9. When the water in the watch is frozen and expanded, the internal pressure is increased, and the air bubble 9 is compressed and reduced by utilizing the characteristic of compressibility of air, so that the space is released, the deformation of the transparent window 6 is reduced, and the shape of the transparent window 6 is restored after thawing.

It should be noted that, in order to avoid that the bubbles 9 in the present embodiment affect meter reading, as shown in fig. 2 and 6, a print wheel window sealing ring 22 is disposed at the top of the print wheel window 21, and the top of the print wheel window sealing ring 22 passes through the through holes on the upper clamping plate 3 and the dial 4 and is tightly attached to the bottom of the print wheel reading block 61, so as to avoid that the bubbles enter between the print wheel window 21 and the transparent window 6 to affect meter reading.

It should be noted that, the above-mentioned character wheel reading block 61 separates the bubble chamber 62 into two smaller chambers, and the outer walls of the two sides of the character wheel reading block 61 are in the shape of a standing edge, so that the edge of the bubble chamber 62 is close to a right angle, avoiding the bubbles from escaping from the bubble chamber 62, and improving the stability of the bubble chamber 62.

It can be understood that, in this embodiment, the bottom of the seal ring 22 of the word wheel window is provided with a ring of flange, and the flange is clamped between the upper clamping plate 3 and the word wheel window 21, and the seal ring 22 of the word wheel window is fixed through the arrangement of the flange, so that the structural complexity is prevented from being increased, and the assembly difficulty is reduced.

Third embodiment,

As shown in fig. 7, on the basis of the second embodiment, a communicating groove 31 is formed at the top of the upper plate 3 of the present embodiment, and the communicating groove 31 communicates the space inside the movement 2 with the space between the transparent window 6 and the upper plate 3. The communicating groove 31 has the meaning that: the communication between the two cavities inside and above the conventional machine core 2 only depends on the gap of the finger pin hole, once the machine core starts to freeze, the gap of the finger pin hole is frozen first and cannot be conducted, so that water inside the machine core 2 is frozen, the upper clamping plate 3 is extruded and deformed, and the machine core is damaged; by arranging the communicating groove 31, the two cavities inside and above the movement 2 are completely communicated, the deformation of the upper clamping plate 3 is effectively relieved, and the damage rate of the water meter after being frozen is reduced.

It should be noted that, in the above-mentioned scheme, the communicating groove 31 is located below the scale 4, and the scale 4 is utilized to block the water flow, so that the air bubbles 9 in the air bubble chamber 62 are not easy to be discharged.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the technical scope of the present utility model, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.

Claims (6)

1. The utility model provides an antifreezing water meter, includes watchcase (1), core (2), punch holder (3), scale (4), transparent window (6), table cover (8), its characterized in that from the bottom up in proper order: transparent window (6) are made by transparent plastics, and its bottom is equipped with word wheel and reads piece (61), transparent window (6) are in word wheel reading piece (61) both sides indent formation bubble chamber (62), core (2) top is equipped with word wheel window, word wheel window (21) top is equipped with word wheel window sealing washer (22), word wheel window sealing washer (22) top pass punch holder (3) and scale (4) and with word wheel reading piece (61) bottom is hugged closely.

2. The anti-freeze water meter of claim 1, wherein: a circle of flange is arranged at the bottom of the word wheel window sealing ring (22), and the flange is clamped between the upper clamping plate (3) and the word wheel window (21).

3. The anti-freeze water meter of claim 1, wherein: the transparent window (6) is integrally in an upward arched arc shape.

4. The anti-freeze water meter of claim 1, wherein: the upper clamping plate (3) is provided with a communication groove (31) in a penetrating mode, and the communication groove (31) is used for communicating the space inside the movement (2) with the space between the transparent window (6) and the upper clamping plate (3).

5. The anti-freeze water meter of claim 4, wherein: the communication groove (31) is positioned below the dial (4).

6. The anti-freeze water meter of claim 1, wherein: the transparent window (6) is made of transparent nylon.

Images