Today, I will introduce to you a national invention authorized patent-an anti-magnetic industrial and commercial model gas meter. The patent was applied for by Shanghai Zhenlan Instrument Technology Co., Ltd., and the authorization was announced on May 10, 2017.
Content descriptionThe utility model relates to the technical field of gas meters, in particular to an anti-magnetic industrial and commercial mode gas meter.
Background of the inventionIndustrial and commercial model gas meters are often subject to users' destruction and gas stealing due to their large usage flow and high ventilation billing. One of the most concealed destruction behaviors uses strong magnets to absorb the moving parts of the movement, creating resistance and increasing the internal leakage of the movement, resulting in an increase in the amount of short-circuit gas that does not pass through the metering chamber, achieving the purpose of stealing gas. The anti-magnetic field of industrial and commercial gas meters is a difficult problem in the industry.
Summary of the inventionThe purpose of the present utility model is to provide an anti-magnetic industrial and commercial mode gas meter to solve the problems raised in the background art.
In order to achieve the above object, the present utility model provides the following technical solutions: an anti-magnetic industrial and commercial model gas meter, including a casing, a core body is arranged in the casing, an output bracket is arranged on the upper end of the core body, and the output bracket is connected with the output gear The counter is connected. The counter is located in the middle of the upper end of the shell. The movement body is equipped with a rotary valve seat, and a rotary valve cover is installed above the rotary valve seat. A plastic splint is installed in the middle of the front end of the movement. A mold spacer is installed on the plastic splint. It is fixed by an aluminum splint, and the middle part of the plastic splint is hinged with one end of the rocker arm, the other end of the rocker arm is sleeved on the short link, and the short link is hinged with the short link, and the short link is hinged with the long link.
As a further solution of the utility model, the core body is integrally injection molded with engineering plastics. The rotary valve cover is an anti-bounce structure. The movement body has a supporting structure. The long link and the short link have a hinged structure.
The utility model mainly relates to G6/G10/G16/G25 products with four specifications. By selecting the material suitability of the movable parts in the gas meter, the possible strong magnetism from outside the watch body will not hinder the movement, thereby ensuring The gas meter operates normally, and the metering function continues to be effective.
The utility model adopts the design of the integral injection molding machine core body 1 of high-quality adaptable engineering plastics through reasonable selection of materials, and non-magnetic sensitivity of the rocker arm, which is a key component for transferring the movement of the mold, to ensure sufficient expansion of the mold and high measurement accuracy. At the same time, the rotary valve that strictly controls the alternate entry and exit of the gas path is driven by a crank gear made of engineering plastic POM that does not have magnetic adsorption, which accurately ensures the accuracy of measurement.
The utility model adopts multiple non-magnetic sensitive metal parts. In order to ensure that the movement transmission is not disturbed, the shaft that transmits the reciprocating movement of the mold spacer to the rotary movement of the rotary valve is made of non-magnetically sensitive stainless steel. At the same time, the non-magnetically sensitive engineering plastic POM is used to manufacture the movement body, which can still ensure that the position of the movement body does not deviate when subjected to strong magnetic adsorption outside the watch, and ensure that all parts are running normally.
The utility model adopts the non-magnetically sensitive metal LF2 alloy aluminum for the mold isolation support chuck to ensure that the mold isolation is not interfered by external forces during the intake and exhaust process, and ensures that the air flow is balanced and undisturbed.
The utility model adopts the non-magnetic sensitive material of engineering plastic POM for the pulling arm to ensure that the reciprocating swing of the shaft output is not disturbed, and adopts the non-magnetic sensitive thermosetting phenolic plastic for the key part that controls the timing of intake and exhaust. It is made so that the valve body always contacts the sealing surface under the action of its own gravity during operation, and the operation is stable and the sealing is reliable.
Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure and a reasonable design, while meeting the anti-magnetic adsorption function, it also ensures that the durability life of the selected material meets the product standard requirements. The product has a wider application range, higher cost performance, and better market acceptance.
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Zhejiang Synmot Electrical Technology Co., Ltd , https://www.synmot-electrical.com