CN202676223U

CN202676223U - Anti-freezing water meter

Info

Publication number: CN202676223U
Application number: CN 201220133154
Authority: CN
Inventors: 毛和龙
Original assignee: NINGBO SANJIU WATER METER CO Ltd
Current assignee: NINGBO SANJIU WATER METER CO Ltd
Priority date: 2012-03-29
Filing date: 2012-03-29
Publication date: 2013-01-16
Anticipated expiration: 2022-03-29

Abstract

The utility model relates to the technical field of water meter manufacture, in particular to an anti-freezing water meter. The anti-freezing water meter comprises an outer shell. A dial plate, a pointer and a glass meter cover are arranged inside the outer shell, wherein the dial plate is provided with a measuring meter, and an elastic air bag is arranged inside the outer shell. Water in the water meter freezes and expands when is cooled, the expansion power caused is transmitted to the air bag, and the air bag is squeezed and out of shape by outer force, so that cracking of the glass meter cover of the water meter can be avoided, the damage of other components inside the water meter can also be avoided, and normal usage of the water meter can be ensured. The anti-freezing water meter has the advantages of being simple in structure, reasonable in setting, low in manufacturing cost and the like.

Description

A kind of Anti-freezing water meter

Technical field

The utility model relates to water meter manufacturing technology field, particularly a kind of Anti-freezing water meter.

Background technology

When existing water meter used in the winter time, because cold weather and freezing situation happens occasionally, particularly in northern China, the water meter of installing and using out of doors often caused the bursting by freezing of water gage glass table cover, so that water meter can't normally use.Causing the freezing main cause of above-mentioned water meter is that water meter is after freezing in fact under the cold temperature, because the water in the table becomes when solid-state from liquid state, it is large that its volume will become, produce certain bulging force, thereby the weakness with water meter---the water gage glass table cover is squeezed broken, even make other members damages in the table, and then affect the normal operation of water meter.Gu how to protect the problems such as water meter can normally use under cold environment to become the in the industry focus of research.

The utility model content

The purpose of this utility model is to provide Anti-freezing water meter a kind of simple in structure, reasonable in design, easy to use for the defective of prior art and deficiency.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of Anti-freezing water meter described in the utility model comprises shell, is provided with dial plate, pointer and glass table cover in the described shell, and described dial plate is provided with gauging table, is provided with flexible air bag in the described shell.

Further, described air bag becomes toroidal, and the cross section of described air bag is circular.

Further, described air bag is located between dial plate and the glass table cover, and gauging table and the pointer of described air bag and dial plate shift to install.

Further, the outer ring diameter of described air bag and dial plate equal diameters, the diameter of section of described air bag equates with the shrouding disc distance.

After adopting said structure, the utility model beneficial effect is: a kind of Anti-freezing water meter described in the utility model, comprise shell, and be provided with dial plate, pointer and glass table cover in the described shell, described dial plate is provided with gauging table, is provided with flexible air bag in the described shell.When using the utility model, the water in the water meter is met cold junction ice and is expanded, and the bulging force of generation passes to air bag, air bag is subjected to external force crimp, thereby avoid occuring the phenomenon that the water gage glass table cover is broken, also avoid the destruction of other member in the water meter simultaneously, guarantee that water meter can normally use.The utlity model has simple in structurely, arrange rationally, the advantage such as cost of manufacture is low.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structure for amplifying synoptic diagram of air bag;

Description of reference numerals:

1, shell; 2, dial plate; 3, pointer; 4, glass table cover; 5, air bag;

H, shrouding disc distance; The outer ring diameter of D, air bag;

The diameter of section of d, air bag.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.

As shown in Figure 1, 2, a kind of Anti-freezing water meter described in the utility model comprises shell 1, is provided with dial plate 2, pointer 3 and glass table cover 4 in the described shell 1, and described dial plate 2 is provided with gauging table, is provided with flexible air bag 5 in the described shell 1.When water freezing in the water meter expanded, air bag 5 was subjected to the external force extruding and is out of shape, thereby has avoided ice directly to squeeze broken glass table cover 4 or other parts.Water meter inside is comparatively moist, and the water in water meter is people's potable water, so air bag 5 should adopt the non-toxic material manufacturing of anti-chloric acid, anti-aging, good springiness.

Described air bag 5 is located between dial plate 2 and the glass table cover 4, and described air bag 5 shifts to install with gauging table and the pointer 3 of dial plate 2.Air bag 5 of the present utility model is not limited in this position, all belongs to the utility model protection domain as long as satisfy the position of purpose of design.

5 one-tenth toroidals of described air bag, the cross section of described air bag 5 are circular, and its cross section might not only be selected circular.Under the prerequisite that does not affect result of use, ellipse or rectangle etc. also can be selected in its cross section.

For guaranteeing not hinder the normal operation of water meter, the outer ring diameter D of described air bag 5 should equate that with dial plate 2 diameters the diameter of section d of described air bag 5 should equate with the shrouding disc distance h.

When measuring with the utility model, not only can avoid the water gage glass table cover to cross low and freezing phenomenon because of environment temperature and occur, also avoid the destruction of other member in the water meter, thereby guarantee that water meter can normally use.In addition, this is simple in structure, reasonable in design, low cost of manufacture.

[0023] the above only is preferred embodiments of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.

Claims

1. Anti-freezing water meter, comprise shell (1), be provided with dial plate (2), pointer (3) and glass table cover (4) in the described shell (1), described dial plate (2) is provided with gauging table, it is characterized in that: be provided with flexible air bag (5) in the described shell (1).

2. a kind of Anti-freezing water meter according to claim 1 is characterized in that: described air bag (5) becomes toroidal, and the cross section of described air bag (5) be circle.

3. a kind of Anti-freezing water meter according to claim 1 and 2, it is characterized in that: described air bag (5) is located between dial plate (2) and the glass table cover (4), and described air bag (5) shifts to install with gauging table and the pointer (3) of dial plate (2).

4. a kind of Anti-freezing water meter according to claim 1 and 2, it is characterized in that: the outer ring diameter (D) of described air bag (5) and dial plate (2) equal diameters, the diameter of section (d) of described air bag (5) equates with shrouding disc distance (h).