CN-224217151-U - Portable gas alarm capable of positioning

Abstract

The utility model relates to the technical field of gas alarms and discloses a positionable portable gas alarm which comprises a shell, wherein the upper end of the shell is provided with a sliding groove, the two sides of the sliding groove are provided with air inlets, the two sides of the air inlets are provided with through grooves, scraping plates are connected in the sliding groove in a sliding manner, positioning rods are arranged at the two ends of the scraping plates, which face the through grooves, of the scraping plates, a baffle plate is arranged above a sensor assembly, the middle part of the upper end of the baffle plate is provided with a through hole, the two sides of the through hole are provided with sealing plugs, and the two sides of the sealing plugs are provided with limiting plates. When carrying this alarm, promote the baffle towards inlet port department through the driving lever, make sealing plug and inlet port meshing grafting, slide the scraper blade towards one side of limiting plate afterwards for locating lever on the limiting plate stops spacing to the limiting plate, avoids the baffle to fall back and causes the sealing plug to break away from the sealing to the inlet port, when the sealing plug blocks up the inlet port, can discharge the impurity in the inlet port.

Inventors

• XIA ZHIGUO

Assignees

• 上海洲和智能科技有限公司

Dates

Publication Date

20260508

Application Date

20250421

Claims (6)

1. 1. The portable gas alarm capable of being positioned comprises a shell (1) and is characterized in that a display screen (2) is arranged on the front side of the shell (1), a control key (3) is arranged below the display screen (2), a sounding hole (4) is formed in the lower side of the control key (3), a main control circuit board (5) is arranged in the shell (1), a sensor component (6) is arranged above the main control circuit board (5), a positioning component (7) is arranged on the front side of the main control circuit board (5), and a buzzer component (8) is arranged on one side, facing the inside of the shell (1), of the sounding hole (4); Spout (10) have been seted up to the upper end of casing (1), inlet port (9) have been seted up to the both sides of spout (10), logical groove (11) have been seted up to the both sides of inlet port (9), slip joint has scraper blade (13) in spout (10), and locating lever (131) are installed towards the both ends of logical groove (11) in scraper blade (13), sensor module (6) top is provided with baffle (14), and through-hole (16) have been seted up at the upper end middle part of baffle (14), sealing plug (15) are installed to the both sides of through-hole (16), limiting plate (17) are installed to the both sides of sealing plug (15).
2. 2. The positionable portable gas alarm according to claim 1, wherein the side wall of the housing (1) is provided with a movable groove (12), the side wall of the baffle (14) is provided with a deflector rod (18), and the deflector rod (18) penetrates through the movable groove (12).
3. 3. The positionable portable gas alarm according to claim 1 wherein the sealing plug (15) is in engagement with the gas inlet (9).
4. 4. The positionable portable gas alarm according to claim 1 wherein said limiting plate (17) extends through the through slot (11).
5. 5. The positionable portable gas alarm according to claim 1 wherein said positioning rod (131) is in pressing contact with a limiting plate (17).
6. 6. The positionable portable gas alarm according to claim 1 wherein the end face of the scraper (13) is in abutting contact with the upper end face of the housing (1).

Description

Portable gas alarm capable of positioning Technical Field The utility model relates to the technical field of gas alarms, in particular to a positionable portable gas alarm. Background The portable gas alarm is an instrument for detecting and measuring the concentration of specific gas in the environment, gas molecules in the air are sensed through a built-in sensor, the sensed signals are converted into electric signals, the electric signals are further processed, displayed and alarmed, and when the detected gas concentration exceeds a preset alarm threshold, the alarm gives out audible and visual alarm to remind a user to take countermeasures in time. The existing portable gas alarm capable of being positioned is convenient to use, the portable gas alarm is generally carried by detection personnel, when the alarm is placed in a pocket or a tool bag, flocks or impurities in the pocket or the tool bag can enter the alarm through an air inlet hole to reduce the use precision of the alarm, and a filter screen is only arranged at the air inlet hole of the traditional alarm, so that the filter screen is blocked by the impurities in the process of trying to use or carry for a long time, and the detection precision of the alarm is reduced. Accordingly, one skilled in the art would provide a positionable portable gas alarm to address the problems set forth in the background above. Disclosure of Invention Aiming at the defects of the prior art, the utility model provides a positionable portable gas alarm, which solves the problems that when the alarm is put into a pocket or a tool bag for carrying, flocks or impurities in the pocket or the tool bag can enter the alarm through an air inlet hole to reduce the use precision of the alarm, and the air inlet hole of the traditional alarm is only provided with a filter screen, and the filter screen is blocked by the impurities in the process of trying to use or carry for a long time, so that the detection precision of the alarm is reduced. The portable gas alarm comprises a shell, wherein a display screen is arranged on the front side of the shell, a control key is arranged below the display screen, a sounding hole is formed in the lower side of the control key, a main control circuit board is arranged in the shell, a sensor component is arranged above the main control circuit board, a positioning component is arranged on the front side of the main control circuit board, and a buzzer component is arranged on one side, facing the inside of the shell, of the sounding hole; The upper end of casing has seted up the spout, and the inlet port has been seted up to the both sides of spout, logical groove has been seted up to the both sides of inlet port, slip joint has the scraper blade in the spout, and the locating lever is installed towards the both ends of leading to the groove to the scraper blade, sensor assembly top is provided with the baffle, and the through-hole has been seted up at the upper end middle part of baffle, and the sealing plug is installed to the both sides of through-hole, the limiting plate is installed to the both sides of sealing plug. Preferably, the side wall of the shell is provided with a movable groove, the side wall of the baffle is provided with a deflector rod, and the deflector rod penetrates through the movable groove. Preferably, the sealing plug is engaged with the air inlet hole, the baffle is pushed towards the air inlet hole through the deflector rod, and the sealing plug on the baffle is engaged with the air inlet hole, so that the air inlet hole can be plugged in the carrying process, and impurities are prevented from entering the equipment. Preferably, the limiting plate penetrates through the through groove, the positioning rod is in contact with the limiting plate in a propping mode, at the moment, the scraping plate slides towards one side of the limiting plate, the positioning rod on the limiting plate stops and limits the limiting plate, and sealing plugs are prevented from being separated from sealing the air inlet holes due to the fact that the baffle is retracted. Preferably, the end face of the scraping plate is in fit contact with the upper end face of the shell, impurities in the air inlet hole can be extruded while the air inlet hole is blocked by the sealing plug, and then the impurities extruded in the air inlet hole are cleaned by moving the scraping plate. Compared with the prior art, the utility model provides a positionable portable gas alarm, which has the following beneficial effects: Through the design, when carrying this alarm, promote the baffle towards inlet port department through the driving lever, make sealing plug and inlet port meshing grafting, slide the scraper blade towards one side of limiting plate afterwards, make the locating lever on the limiting plate block the limiting plate spacing, avoid the sealing plug to break away from the sealing to the inlet port that causes, when the sealing plug blocks u