Waterproof button of ultrasonic gas meter

Abstract

The utility model relates to a waterproof button of an ultrasonic gas meter. The key is characterized in that the key is integrally arranged and comprises a pressing part, a limiting part, a protruding part, a rebounding part and a sealing part; the controller upper shell is provided with a mounting hole, a limiting table, a sealing rib and a stand column for mounting a key pressing plate; the key pressing plate is provided with a through hole, a key sealing pressing block and a small hole matched with the stand column. A pressing part of the key penetrates through an installation hole of the controller upper shell from inside to outside, a limiting part of the key is matched with a limiting table of the controller upper shell for limiting, a sealing part of the key is matched with a sealing rib of the controller upper shell for limiting, and a small hole of the key pressing plate is arranged on a stand column of the controller upper shell in a sleeved mode. A protruding part of the key penetrates through a through hole of the key pressing plate to be matched with a mechanical key installed on a main control board in the base meter controller box, and a key sealing block of the key pressing plate presses a sealing part of the key and is tightly matched with a sealing rib of the controller upper shell to achieve sealing. And the key is simple in structure, long in service life and capable of effectively preventing water and moisture.

Description

Technical Field

[0001] The utility model relates to a waterproof button of an ultrasonic gas meter. Background Art

[0002] As a metering product, gas meters are developing rapidly in the domestic intelligent products. Today's intelligent gas meters have replaced the early pure mechanical structure gas meter products. Due to the special installation environment, including indoors, kitchens, and outdoors, ultrasonic gas meter products also have higher requirements for waterproofing and moisture-proofing. Smart gas meters are more intelligent in performance and more particular in the use of materials, including stainless steel, engineering plastics, etc. These materials have more advantages in waterproofing and moisture-proofing.

[0003] Ultrasonic gas meters are intelligent gas meters. The meter collects, displays and sends information, and realizes human-computer communication through the main control board. The main control board is installed in the controller cover at the front of the meter. The main control board uses physical buttons according to customer requirements, and users query and process data by manually pressing buttons. Due to the particularity of the meter installation environment, how to solve the problem of button waterproofing and moisture-proofing is a technical problem that the product needs to solve. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a technical solution for a waterproof button of an ultrasonic gas meter.

[0005] The waterproof button of the ultrasonic gas meter is made of silicone and installed on the upper shell of the controller, and cooperates with the mechanical button on the main control board installed in the base meter controller box, and is characterized by:

[0006] The button is integrated, including a pressing portion, a limiting portion, a raised portion, a rebound portion and a sealing portion;

[0007] The upper shell of the controller is provided with mounting holes, a limit platform, a sealing rib and a column for mounting a key plate;

[0008] The key pressing plate is provided with a through hole, a key sealing pressing block and a small hole matching with the column;

[0009] The pressing part of the button passes through the mounting hole of the controller upper shell from the inside to the outside, the limiting part of the button cooperates with the limiting platform of the controller upper shell for limiting, the sealing part of the button cooperates with the sealing rib of the controller upper shell for limiting, the small hole of the button pressure plate is sleeved on the column of the controller upper shell, the raised part of the button passes through the through hole of the button pressure plate and cooperates with the mechanical button on the main control board installed in the controller box, the button sealing block of the button pressure plate presses the sealing part of the button and is tightly matched with the sealing rib of the controller upper shell to achieve sealing.

[0010] The waterproof button of the ultrasonic gas meter is characterized in that the head of the column is set in a step shape to support the button pressure plate.

[0011] The waterproof button of the ultrasonic gas meter is characterized in that the head of the column is fixedly connected to the button pressing plate by ultrasonic welding.

[0012] The waterproof button of the ultrasonic gas meter is characterized in that the button is arranged in plurality.

[0013] The button of the utility model is made of silicone and is integrally formed. The button is divided into a pressing part, a limiting part, a protruding part, a rebound part and a sealing part. When the button is installed in cooperation with the upper shell of the controller, the pressing part of the button passes through the mounting hole of the upper shell of the controller from the inside to the outside, the limiting part of the button cooperates with the limiting platform of the upper shell of the controller for limiting, the sealing part of the button cooperates with the sealing rib of the upper shell of the controller for limiting, the small hole of the button pressing plate is sleeved on the column of the upper shell of the controller, the protruding part of the button passes through the through hole of the button pressing plate and cooperates with the mechanical button on the main control board installed in the controller box, the button sealing block of the button pressing plate presses the sealing part of the button and is tightly matched with the sealing rib of the upper shell of the controller to achieve sealing; the button has a simple structure, a long service life, and can be effectively waterproof and moisture-proof. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the base table;

[0015] Figure 2 The structure of the controller upper shell Figure 1 ;

[0016] Figure 3 The structure of the controller upper shell Figure 2 ;

[0017] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0018] Figure 5 It is a structural schematic diagram of a key press plate;

[0019] Figure 6 It is a partial cross-sectional view of the base table;

[0020] Figure 7 for Figure 6 Enlarged view of part B in the middle;

[0021] In the figure: controller upper shell 1, base table 2, button 3, button pressure plate 4, mounting hole 5, limit platform 6, sealing rib 7, column 8, through hole 9, small hole 10, button sealing block 11, pressing part 12, limit part 13, protrusion 14, rebound part 15, sealing part 16, mechanical button 17. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] A waterproof button of an ultrasonic gas meter, the button 3 is made of silicone material and is installed on the upper shell 1 of the controller, and cooperates with the mechanical button 17 on the main control board installed in the controller box of the base meter 2. The button 3 is set as an integral part, including a pressing part 12, a limiting part 13, a protruding part 14, a rebound part 15 and a sealing part 16; the upper shell of the controller is provided with a mounting hole 5, a limiting platform 6, a sealing rib 7 and a column 8 for installing a button pressing plate; the button pressing plate 4 is provided with a through hole 9, a button sealing block 11 and a small hole 10 cooperating with the column; the pressing of the button The key sealing block 11 of the key pressing plate presses the sealing portion 16 of the key and is tightly matched with the sealing rib 7 of the upper shell of the controller to achieve sealing.

[0024] In order to facilitate limiting and welding, the head of the column 8 is set to a step shape for matching with the small hole 10 of the key platen and for supporting the key platen. The head of the column is fixedly connected to the key platen by ultrasonic welding.

[0025] The buttons of the utility model can be arranged in a plurality, and the corresponding controller upper shell and the button pressing plate also cooperate to increase the mounting structure.

[0026] In this embodiment, Figure 1 As shown, the controller upper shell 1 has two mounting holes 5 corresponding to the positions of the mechanical buttons 17 on the main control board. There are three columns around the mounting holes, arranged on the left, middle and right sides respectively. The heads of the columns have steps for supporting the button pressure plate. The silicone button 3 is installed in the mounting hole.

[0027] There are three through holes on the key platen that correspond to the mounting holes on the upper shell of the controller. Put the key platen onto the three corresponding columns on the upper shell of the controller. When putting it on, make sure that the tail plane of the silicone button is in complete contact with the key sealing block structure on the upper shell of the controller without any warping or curling.

[0028] The key pressure plate is pressed against the silicone key to compress it. The key sealing block of the key pressure plate presses the sealing part of the key and fits tightly with the sealing rib of the controller upper shell to achieve sealing. The column is welded to the key pressure plate by ultrasonic welding, and the silicone key always remains in a compressed state.

[0029] The finally assembled controller upper shell is installed on the ultrasonic gas meter base with the intelligent module circuit board to assemble into a complete intelligent ultrasonic gas meter; after the installation is completed, press the silicone button to confirm whether it contacts the mechanical button on the main control board to realize the button function.

[0030] Through the detection of the waterproof performance of the button of the utility model, the protection level of the shell has reached IP65, which is higher than the IP54 required by the national standard GB / T39841-2021 for ultrasonic meters.

Claims

1. A waterproof button for an ultrasonic gas meter, which is made of silicone and installed on the upper shell of the controller, and cooperates with a mechanical button on the main control board installed in the base meter controller box, characterized in that: The button is integrated, including a pressing portion, a limiting portion, a raised portion, a rebound portion and a sealing portion; The upper shell of the controller is provided with mounting holes, a limit platform, a sealing rib and a column for mounting a key plate; The key pressing plate is provided with a through hole, a key sealing pressing block and a small hole matching with the column; The pressing part of the button passes through the mounting hole of the controller upper shell from the inside to the outside, the limiting part of the button cooperates with the limiting platform of the controller upper shell for limiting, the sealing part of the button cooperates with the sealing rib of the controller upper shell for limiting, the small hole of the button pressure plate is sleeved on the column of the controller upper shell, the raised part of the button passes through the through hole of the button pressure plate and cooperates with the mechanical button on the main control board installed in the controller box, the button sealing block of the button pressure plate presses the sealing part of the button and is tightly matched with the sealing rib of the controller upper shell to achieve sealing.

2. The waterproof button of an ultrasonic gas meter according to claim 1, characterized in that The head of the column is configured in a step shape and is used to support the key pressing plate.

3. The waterproof button of an ultrasonic gas meter according to claim 1, characterized in that The head of the column is fixedly connected to the key pressing plate by ultrasonic welding.

4. The waterproof button of an ultrasonic gas meter according to claim 1, characterized in that The button is arranged in plurality.

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