A gas measuring instrument

Abstract

This utility model relates to the field of gas detection technology, specifically to a gas measuring instrument, including a housing, a rear cover, a circuit board, a battery assembly, and a debugging receiving window. The rear cover is fitted to the rear end of the housing, the circuit board is disposed inside the housing, the battery assembly is disposed inside the housing and located at the rear end of the circuit board, and the debugging receiving window is disposed at the front end of the housing. An infrared signal is emitted by a debugging pen, which is then received by the debugging receiving window and transmitted into the circuit board. This device, through the cooperation of a wireless debugging circuit board and a debugging pen, improves debugging accuracy and reduces the workload of personnel, making debugging simpler.

Description

Technical Field

[0001] This utility model relates to the field of gas detection technology, and in particular to a gas measuring instrument. Background Technology

[0002] Portable gas detectors are a new type of instrument that can continuously measure the concentration of methane, carbon monoxide, oxygen, and nitrogen dioxide in the air. During normal use, the methane zero point and calibration accuracy should be adjusted at least once every 15 days, and the zero points and accuracy of carbon monoxide, oxygen, and nitrogen dioxide should be adjusted at least once a month.

[0003] Currently, there are two main types of instrument debugging methods on the market. One method involves entering a password via a key during ventilation to enter the debugging state, and then debugging via the buttons on the panel. The other method involves adjusting a potentiometer. The potentiometer is covered by a protective cover, and during debugging, the protective cover needs to be removed first, and the potentiometer resistance value needs to be adjusted using a small screwdriver or other tools. After debugging, the protective cover is then reinstalled.

[0004] However, the existing adjustment method has a complex structure and is inconvenient to operate during adjustment, especially when using a potentiometer to adjust, it is difficult to guarantee the adjustment accuracy. Utility Model Content

[0005] The purpose of this invention is to provide a gas measuring instrument that solves the problems of complex structure, inconvenient operation during calibration, and difficulty in ensuring calibration accuracy when using a potentiometer in the existing technology.

[0006] To achieve the above objectives, this utility model provides a gas detector, including a housing, a rear cover, a circuit board, a battery assembly, a first gas chamber, a debugging receiving window, a first sensor, and a digital tube display screen. The rear cover is fitted onto the rear end of the housing, the circuit board is disposed inside the housing, the battery assembly is disposed inside the housing and located at the rear end of the circuit board, the debugging receiving window is disposed at the front end of the housing, the housing has a first groove, the first gas chamber is disposed on the first groove, the digital tube display screen is disposed at the front end of the housing, and the first sensor is disposed on the circuit board.

[0007] The gas detector also includes multiple buttons, which are respectively disposed on the housing and located above the digital tube display screen.

[0008] The gas measuring instrument further includes a second gas chamber and a second sensor. The housing has a second groove, the second gas chamber is disposed on the second groove and located below the first gas chamber, and the second sensor is disposed on the circuit board and located below the second gas chamber.

[0009] The gas measuring instrument further includes two third gas chambers, a third sensor, and a fourth sensor. The housing has a third groove, and the two third gas chambers are respectively disposed on the third groove and located to the left of the first gas chamber and the second gas chamber, respectively. The third sensor and the fourth sensor are respectively disposed on the circuit board and located below the corresponding third gas chamber.

[0010] The gas measuring instrument further includes two positioning rods and a mounting frame. The rear cover has multiple grooves. The two positioning rods are respectively disposed inside the rear cover. The mounting frame is disposed inside the rear cover. The battery assembly is adapted to the mounting frame.

[0011] This utility model discloses a gas detector. A rear cover fits onto the rear end of a housing. A circuit board is disposed inside the housing, and a battery assembly is disposed inside the housing, located at the rear end of the circuit board. A debugging receiving window is disposed at the front end of the housing. An infrared signal is emitted by a debugging pen, which is then received by the debugging receiving window and transmitted into the circuit board. This device, through the wireless debugging of the circuit board and the debugging pen, improves debugging accuracy and reduces manual workload, making debugging simpler. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this utility model.

[0014] Figure 2 This is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0015] Figure 3 This is an exploded view of the entire second embodiment of the present invention.

[0016] Figure 4 This is an exploded view of the entire third embodiment of this utility model.

[0017] 1-Housing, 2-Back cover, 3-Circuit board, 4-Battery assembly, 5-Debugging receiver window, 6-Digital tube display screen, 7-Button, 8-First air chamber, 9-First groove, 10-Second air chamber, 11-Second groove, 12-Third air chamber, 13-Third groove, 14-Positioning rod, 15-Groove, 16-Mounting frame, 17-First sensor, 18-Second sensor, 19-Third sensor, 20-Fourth sensor. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] First embodiment:

[0020] Please see Figure 1 ,in, Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this utility model.

[0021] This utility model provides a gas detector, including a housing, a rear cover, a circuit board, a battery assembly, a first gas chamber, a debugging receiving window, a first sensor, and a digital tube display screen. The rear cover covers the rear end of the housing, the circuit board is disposed inside the housing, the battery assembly is disposed inside the housing and located at the rear end of the circuit board, the debugging receiving window is disposed at the front end of the housing, the housing has a first groove, the first gas chamber is disposed on the first groove, the digital tube display screen is disposed at the front end of the housing, and the first sensor is disposed on the circuit board.

[0022] In this embodiment, an infrared signal is emitted by the debugging pen, and then the debugging receiving window 5 receives the signal and passes it into the circuit board 3. The device works in conjunction with the wireless debugging circuit board 3 and the debugging pen to improve debugging accuracy and reduce the workload of personnel, making debugging simpler. When the staff carries the device into the mine, the methane gas in the mine will enter the device through the first gas chamber and be detected by the corresponding sensor 17. The data information is transmitted to the debugging receiving window through the circuit board. When the value exceeds the standard, the device will start an alarm. The battery assembly can power the device to continue its operation. When methane gas is detected, the specific data of the current methane is displayed on the digital tube display screen 6, which makes it easy for the staff to observe changes and judge the current methane concentration in the air.

[0023] Furthermore, the gas detector also includes multiple buttons, which are respectively disposed on the housing and located above the digital tube display screen.

[0024] In this embodiment, the device can be switched on and off, and the time and voltage can be adjusted via the multiple buttons.

[0025] Second embodiment:

[0026] Please see Figure 2 and Figure 3 ,in, Figure 2This is a schematic diagram of the overall structure of the second embodiment of the present invention. Figure 3 This is an exploded view of the entire second embodiment of the present invention.

[0027] This utility model provides a gas measuring instrument, which further includes a second gas chamber and a second sensor. The housing has a second groove, the second gas chamber is disposed on the second groove and located below the first gas chamber, and the second sensor is disposed on the circuit board and located below the second gas chamber.

[0028] In this embodiment, oxygen can be detected through the second air chamber 10. The oxygen passes through the second air chamber and is detected by the second sensor. The specific data is transmitted to the digital tube display screen 6 via the circuit board. When the oxygen level is lower than a specified value, the alarm of the device will sound to remind the staff.

[0029] Third embodiment:

[0030] Please see Figure 4 ,in, Figure 4 This is an exploded view of the entire third embodiment of this utility model.

[0031] This utility model provides a gas measuring instrument, which further includes two third gas chambers, a third sensor and a fourth sensor. The housing has a third groove, and the two third gas chambers are respectively disposed on the third groove and located to the left of the first gas chamber and the second gas chamber, respectively. The third sensor 19 and the fourth sensor 20 are respectively disposed on the circuit board 3 and located below the corresponding third gas chamber 12.

[0032] In this embodiment, carbon monoxide and nitrogen dioxide are detected through two third gas chambers 12 respectively. Carbon monoxide and nitrogen dioxide enter the two third gas chambers 12, and carbon monoxide is detected by a third sensor, while nitrogen dioxide is detected by a fourth sensor. The circuit board 3 then transmits the detected data to the digital display screen 6 for display. When the detected data exceeds the limit, an alarm is triggered by an alarm located below the debugging receiving window 5. The debugging circuit of this product uses a Hall element, an infrared receiver, and a microprocessor connected to the debugging pen's sensing area. When the Hall element switch is brought close to the instrument's sensing area, the instrument enters the debugging state. When the infrared emitting area of ​​the debugging pen is aligned with the instrument's infrared receiving area, the instrument receives the data from the debugging pen and instantly completes the debugging process.

[0033] Furthermore, the gas measuring instrument also includes two positioning rods 14 and a mounting frame 16. The rear cover has multiple grooves 15. The two positioning rods 14 are respectively disposed inside the rear cover 2. The mounting frame 16 is disposed inside the rear cover 2. The battery assembly 4 is adapted to the mounting frame 16.

[0034] In this embodiment, the two positioning rods can cooperate with the housing, thereby facilitating the docking and installation of the housing and the rear cover, and the mounting frame can be used to install the battery assembly, making it easy to fix it.

[0035] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A gas measuring instrument, characterized in that, It includes a housing, a back cover, a circuit board, a battery assembly, a first air chamber, a debugging receiving window, a first sensor, and a digital tube display screen; The rear cover is fitted onto the rear end of the housing. The circuit board is disposed inside the housing. The battery assembly is disposed inside the housing and located at the rear end of the circuit board. The debugging receiving window is disposed at the front end of the housing. The housing has a first groove. The first air chamber is disposed on the first groove. The digital tube display screen is disposed at the front end of the housing. The first sensor is disposed on the circuit board.

2. The gas measuring instrument as described in claim 1, characterized in that, The gas detector also includes multiple buttons, which are respectively disposed on the housing and located above the digital tube display screen.

3. The gas measuring instrument as described in claim 2, characterized in that, The gas measuring instrument further includes a second gas chamber and a second sensor. The housing has a second groove, the second gas chamber is disposed on the second groove and located below the first gas chamber, and the second sensor is disposed on the circuit board and located below the second gas chamber.

4. The gas measuring instrument as described in claim 3, characterized in that, The gas measuring instrument further includes two third gas chambers, a third sensor, and a fourth sensor. The housing has a third groove, and the two third gas chambers are respectively disposed on the third groove and located to the left of the first gas chamber and the second gas chamber, respectively. The third sensor and the fourth sensor are respectively disposed on the circuit board and located below the corresponding third gas chamber.

5. The gas measuring instrument as described in claim 4, characterized in that, The gas measuring instrument also includes two positioning rods and a mounting frame. The rear cover has multiple grooves. The two positioning rods are respectively disposed inside the rear cover. The mounting frame is disposed inside the rear cover. The battery assembly is adapted to the mounting frame.

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