Gas meter based on liquid crystal screen and hidden mechanical character wheel

Abstract

The utility model belongs to the technical field of gas meters, and particularly relates to a gas meter based on a liquid crystal screen and a hidden mechanical character wheel, which comprises a base meter, a mechanical metering movement is arranged on the base meter, a support is fixedly connected onto a front casing of the base meter, and a display window is arranged on the support. A mechanical character wheel counter connected with the mechanical metering movement is arranged on the side, close to the base meter, of the display window, a movable polaroid is arranged on the display window, a liquid crystal screen is fixedly arranged on the side, away from the base meter, of the display window, and the mechanical character wheel counter is further connected with a character wheel information collecting plate. The character wheel information acquisition board is connected with the signal conversion control mainboard, and the signal conversion control mainboard is connected with the liquid crystal screen. According to the utility model, when the liquid crystal screen cannot display, the mechanical character wheel counter can still work, and a reliable metering basis can still be provided in a working condition state.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas table technical field, concretely relates to a gas table based on liquid crystal screen and hidden mechanical dial. BACKGROUND

[0002] With the rapid development of science and technology, the replacement of diaphragm gas meter is also in full swing, and diversified, intelligent, internet-of-things and precise products emerge in an endless stream, wherein, the role of electronic device is self-evident, but it also leads to many new problems. For example, if the gas consumption is displayed on the liquid crystal display screen after the temperature and pressure of the electromechanical synchronous display temperature correction diaphragm gas meter adopt the program design method of correction compensation, and if the dial counter is not installed, when the intelligent control part fails, the user's gas consumption cannot be calibrated, and if the electrically-driven dial counter is installed, the intelligent control part needs to drive the dial counter to display the resident gas consumption under the working condition, and the liquid crystal screen displays the resident gas consumption under the corrected standard condition, although the two values are consistent, the value is obtained by driving the intelligent control part, and the mechanical counting standard value before temperature and pressure compensation cannot be reflected, the value is displayed by driving the intelligent control part, and once the intelligent control part fails, the gas can still be used, but the metering cannot be generated, which is easy to cause user disputes and other problems. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above technical problems, the utility model provides a kind of gas table based on liquid crystal screen and hidden mechanical dial.

[0004] The utility model is realized as follows: a kind of gas table based on liquid crystal screen and hidden mechanical dial is provided, including base table, mechanical metering movement is arranged on base table, support is fixedly connected on the front shell of base table, display window is opened in support, mechanical dial counter connected with mechanical metering movement is arranged at the side of display window close to base table, polaroid with movable position is arranged on display window, liquid crystal screen is fixedly arranged at the side of display window away from base table, mechanical dial counter is further connected with dial information acquisition board, dial information acquisition board is connected with signal conversion control mainboard, signal conversion control mainboard is connected with liquid crystal screen.

[0005] Preferably, transverse or longitudinal sliding rail is arranged on the display window of the support, and the polaroid is slidably connected on the sliding rail.

[0006] Compared with the prior art, the utility model has the advantages that:

[0007] The scheme provided by the utility model has strong universality, is suitable for most traditional dial counters, and does not need any modification to the dial counter;

[0008] The device has strong expansion capability and can be applied to other occasions requiring covering after slight modification.

[0009] The device has high practicability, and only needs to slide the polaroid to conveniently observe the value of the mechanical character wheel counter, and reversely sliding can restore the covering state. When the signal conversion control mainboard has power supply problems or is damaged, and the liquid crystal screen cannot display, the mechanical character wheel counter can still work, and reliable measurement basis can still be provided in the working condition. Meanwhile, the utility model can easily solve a series of problems caused by the inconsistency between the display screen of the temperature and pressure compensation gas meter and the mechanical character wheel.

[0010] The utility model discloses simple structure, few parts, low manufacturing cost, economic and practical, convenient, safe and reliable to install and use simultaneously, can be widely applied to family, industrial and mining and other occasions. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the three-dimensional view of the gas meter for showing the number through the liquid crystal screen in the normal state;

[0012] Figure 2 It is the front view of the gas meter for showing the number through the liquid crystal screen in the normal state;

[0013] Figure 3 It is the three-dimensional view of the gas meter for showing the number through the mechanical character wheel counter when the signal conversion control mainboard fails;

[0014] Figure 4 It is the front view of the gas meter for showing the number through the mechanical character wheel counter when the signal conversion control mainboard fails. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the utility model more clearly, in the following, the utility model is further explained in detail by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0016] Reference Figures 1-4 The utility model provides a kind of gas meter based on liquid crystal screen and hidden mechanical character wheel, including base meter 1, mechanical meter movement 2 is provided on base meter 1, and bracket 3 is fixedly connected on the front shell of base meter 1, display window is opened in bracket 3, and mechanical character wheel counter 3 connected with mechanical meter movement 2 is arranged at the side of display window close to base meter 1, polaroid 4 movable in position is equipped on display window, and liquid crystal screen 5 is fixedly equipped at the side of display window away from base meter 1, mechanical character wheel counter 3 is also connected with character wheel information acquisition board 65, character wheel information acquisition board 6 connects signal conversion control mainboard 7, and signal conversion control mainboard 7 is connected with liquid crystal screen 5.

[0017] The above-mentioned table display checking method of the gas meter based on liquid crystal screen and hidden mechanical character wheel includes the following contents:

[0018] In normal state, the mechanical meter movement 2 of the gas meter counts the gas usage and drives the indication change of the mechanical dial counter 3, the indication change signal of the mechanical dial counter 3 is collected by the dial information collection board 6 and is transmitted to the signal conversion control mainboard 7, the signal conversion control mainboard 7 transmits the signal to the liquid crystal screen 5 after signal conversion processing, and the current indication is displayed on the liquid crystal screen 5;

[0019] When the signal conversion control mainboard 7 fails and the liquid crystal screen 5 cannot display the current indication, since the mechanical meter movement 2 is still in normal operation, when the current indication needs to be checked, the position of the polaroid 4 is moved, the liquid crystal screen 5 cannot display the indication at this time, and the indication of the mechanical dial counter 3 viewed through the liquid crystal screen 5 is the current indication.

[0020] In order to facilitate pulling the polaroid 4 in any direction, as an improvement of the technical scheme, a horizontal or vertical sliding rail is arranged on the display window of the bracket 3, and the polaroid 4 is slidingly connected to the sliding rail.

Claims

1. Gas meter based on a liquid crystal screen and a hidden mechanical dial, characterized in that, The utility model relates to a kind of mechanical metering watch, including base table (1), mechanical metering watch core (2) is provided on base table (1), and fixedly connected support (3) is connected on the front shell of base table (1), display window is opened in support (3), and mechanical word wheel counter (8) connected with mechanical metering watch core (2) is arranged in the side of display window close to base table (1), polaroid (4) with position movable is equipped in display window, liquid crystal screen (5) is fixedly equipped in the side of display window away from base table (1), and mechanical word wheel counter (8) is further connected with word wheel information acquisition board (6), word wheel information acquisition board (6) is connected signal conversion control mainboard (7), and signal conversion control mainboard (7) is connected with liquid crystal screen (5).

2. The gas meter based on a liquid crystal screen and a hidden mechanical dial according to claim 1, characterized in that, On the display window of the support (3), a horizontal or vertical sliding track is provided, and the polaroid (4) is slidingly connected to the sliding track.

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