Positionable portable gas alarm

Abstract

The utility model relates to the technical field of gas alarms, and discloses a positionable portable gas alarm which comprises a shell, a sliding groove is formed in the upper end of the shell, air inlet holes are formed in the two sides of the sliding groove, through grooves are formed in the two sides of the air inlet holes, a scraping plate is clamped in the sliding groove in a sliding mode, and positioning rods are installed at the two ends, facing the through grooves, of the scraping plate. A baffle is arranged above the sensor assembly, a through hole is formed in the middle of the upper end of the baffle, sealing plugs are installed on the two sides of the through hole, and limiting plates are installed on the two sides of the sealing plugs. When the alarm is carried, the baffle plate is pushed towards the air inlet through the deflector rod, so that the sealing plug is engaged and inserted with the air inlet, and then the scraper plate slides towards one side of the limiting plate, so that the limiting plate is blocked and limited by the positioning rod on the limiting plate, and the situation that the sealing plug is separated from the sealing of the air inlet due to the fact that the baffle plate retreats is avoided; and when the sealing plug blocks the air inlet hole, impurities in the air inlet hole can be discharged.

Description

Technical Field

[0001] This utility model relates to the field of gas alarm technology, specifically a portable gas alarm with location capability. Background Technology

[0002] A portable gas alarm is an instrument used to detect and measure the concentration of specific gases in the environment. It uses a built-in sensor to sense gas molecules in the air and converts the sensed signal into an electrical signal for further processing, display, and alarm. When the detected gas concentration exceeds a preset alarm threshold, the alarm will emit an audible and visual alarm to remind the user to take timely countermeasures.

[0003] Existing portable gas detectors, designed for ease of use, are typically carried by the operator. However, when placed in a pocket or tool bag, lint or other impurities can enter the detector through the air inlet, reducing its accuracy. Furthermore, traditional detectors often only have a filter at the air inlet, which can become clogged with impurities during prolonged use or carrying, further decreasing detection accuracy. Therefore, those skilled in the art have developed a portable gas detector with a location capability to address the problems described in the background section. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a portable gas alarm with location capability. This solves the problem that when the alarm is carried in a pocket or tool bag, lint or other impurities in the pocket or tool bag can enter the alarm through the air inlet, reducing the alarm's accuracy. Furthermore, traditional alarms only have a filter at the air inlet, and impurities can clog the filter during prolonged use or carrying, thus reducing the alarm's detection accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a portable gas alarm with positioning capability, comprising a housing, a display screen on the front side of the housing, control buttons below the display screen, a sound hole below the control buttons, a main control circuit board inside the housing, a sensor assembly above the main control circuit board, a positioning assembly on the front side of the main control circuit board, and a buzzer assembly installed on the side of the sound hole facing inwards from the housing.

[0006] The upper end of the housing is provided with a sliding groove, and air inlets are provided on both sides of the sliding groove. Through grooves are provided on both sides of the air inlets. A scraper is slidably engaged in the sliding groove. Positioning rods are installed on both ends of the scraper facing the through groove. A baffle is provided above the sensor assembly. A through hole is provided in the middle of the upper end of the baffle. Sealing plugs are installed on both sides of the through hole. Limiting plates are installed on both sides of the sealing plugs.

[0007] Preferably, a movable groove is provided on the side wall of the housing, and a lever is installed on the side wall of the baffle, the lever passing through the movable groove.

[0008] Preferably, the sealing plug engages with the air inlet. By pushing the baffle towards the air inlet with a lever, the sealing plug on the baffle engages with the air inlet, thereby sealing the air inlet during transport and preventing impurities from entering the equipment.

[0009] Preferably, the limiting plate passes through the through groove, and the positioning rod is in abutting contact with the limiting plate. At this time, the scraper is slid towards one side of the limiting plate, so that the positioning rod on the limiting plate blocks and limits the limiting plate, preventing the baffle from retracting and causing the sealing plug to detach from the air inlet.

[0010] Preferably, the end face of the scraper is in close contact with the upper end face of the housing. While the sealing plug blocks the air inlet, it can squeeze out the impurities in the air inlet. Then, the scraper is moved to clean the impurities squeezed out of the air inlet.

[0011] Compared with the prior art, this utility model provides a location-based portable gas alarm, which has the following advantages:

[0012] By design, when carrying the alarm, the baffle is pushed towards the air inlet using a lever, causing the sealing plug to engage with the air inlet. Then, the scraper slides towards one side of the limiting plate, causing the positioning rod on the limiting plate to block and limit the baffle, preventing the sealing plug from disengaging from the air inlet. While the sealing plug blocks the air inlet, it also squeezes out impurities. The scraper is then used to clean the squeezed-out impurities. This structure seals the air inlet on the housing when carrying the alarm, preventing lint or other impurities from entering the alarm through the air inlet when it's placed in a pocket or tool bag, thus reducing the alarm's accuracy. Furthermore, the scraper and sealing plug clean the air inlet, preventing blockages that could reduce the alarm's detection accuracy. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the portable gas alarm that can be located according to an embodiment of this application.

[0014] Figure 2 This is a structural cross-sectional view of the housing of the portable gas alarm that can be located according to an embodiment of this application.

[0015] Figure 3 This is a schematic diagram of the air inlet structure in the portable gas alarm that can be located according to an embodiment of this application.

[0016] In the diagram: 1. Housing; 2. Display screen; 3. Control buttons; 4. Sound hole; 5. Main control circuit board; 6. Sensor assembly; 7. Positioning assembly; 8. Buzzer assembly; 9. Air inlet; 10. Slide groove; 11. Through groove; 12. Movable groove; 13. Scraper; 131. Positioning rod; 14. Baffle; 15. Sealing plug; 16. Through hole; 17. Limiting plate; 18. Toggle lever. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model provides a technical solution for a portable gas alarm that can be located. Please refer to [link / reference]. Figure 1 , Figure 2 The housing 1 includes a display screen 2 on the front side of the housing 1, a control button 3 below the display screen 2, a sound hole 4 on the lower side of the control button 3, a main control circuit board 5 inside the housing 1, a sensor assembly 6 above the main control circuit board 5, a positioning assembly 7 on the front side of the main control circuit board 5, and a buzzer assembly 8 installed on the side of the sound hole 4 facing the inside of the housing 1.

[0019] Please see Figure 3The upper end of the housing 1 has a sliding groove 10, and air inlets 9 are provided on both sides of the sliding groove 10. Through grooves 11 are provided on both sides of the air inlets 9. A scraper 13 is slidably engaged in the sliding groove 10. Positioning rods 131 are installed on both ends of the scraper 13 facing the through grooves 11. A baffle 14 is provided above the sensor assembly 6. A through hole 16 is provided in the middle of the upper end of the baffle 14. Sealing plugs 15 are installed on both sides of the through hole 16. Limiting plates 17 are installed on both sides of the sealing plugs 15. A movable groove 12 is provided on the side wall of the housing 1. A lever 18 is installed on the side wall of the baffle 14. The lever 18 passes through the movable groove 12. The sealing plugs 15 are engaged with the air inlets 9. The baffle 14 is pushed toward the air inlets 9 by the lever 18. The sealing plug 15 on the baffle 14 engages with the air inlet 9, thereby sealing the air inlet 9 during transport to prevent impurities from entering the equipment. The limiting plate 17 passes through the through groove 11, and the positioning rod 131 presses against the limiting plate 17. At this time, the scraper 13 is slid towards one side of the limiting plate 17, so that the positioning rod 131 on the limiting plate 17 blocks and limits the limiting plate 17, preventing the baffle 14 from retracting and causing the sealing plug 15 to detach from the seal of the air inlet 9. The end face of the scraper 13 is in contact with the upper end face of the housing 1. While the sealing plug 15 blocks the air inlet 9, it can squeeze out the impurities in the air inlet 9. Then, the scraper 13 is moved to clean the impurities squeezed out of the air inlet 9.

[0020] The portable gas alarm that can be located in this utility model includes a housing 1, a display screen 1, control buttons 3 and a sound hole 4 on the front side of the housing 1, and a main control circuit board 5, a sensor assembly 6, a positioning assembly 7 and a buzzer assembly 8 inside the housing 1.

[0021] A sliding groove 10 is provided at the upper end of the housing 1. Air inlets 9 are provided on both sides of the sliding groove 10, and through grooves 11 are provided on both sides of the air inlets 9. A baffle 14 is provided in the upper cavity of the housing 1, and a sealing plug 15 is installed on the upper side of the baffle 14. A through hole 16 is provided on one side of the sealing plug 15. A lever 18 is also installed on one side of the baffle 14, and a limit plate 17 is installed on the upper side of the baffle 14. A scraper 13 is slidably engaged in the sliding groove 10 at the upper end of the housing 1, and positioning rods 131 are installed at both ends of the scraper 13.

[0022] When carrying the alarm, push the baffle 14 toward the air inlet 9 by using the lever 18, so that the sealing plug 15 on the baffle 14 engages with the air inlet 9. At this time, the limiting plate 17 on the upper side of the baffle 14 protrudes through the groove 11, and slide the scraper 13 toward one side of the limiting plate 17, so that the positioning rod 131 on the limiting plate 17 blocks and limits the limiting plate 17, preventing the baffle 14 from retracting and causing the sealing plug 15 to disengage from the air inlet 9. While the sealing plug 15 blocks the air inlet 9, it can squeeze out the impurities in the air inlet 9. Then, clean the impurities squeezed out of the air inlet 9 by moving the scraper 13.

[0023] When using the device, the baffle 14 is retracted. At this time, the sealing plug 15 is released from blocking the air inlet 9. After air enters the air inlet 9, the gas can contact the sensor assembly 6 through the through hole 16.

[0024] This structure can block the air inlet 9 on the housing 1 when carrying the alarm, preventing lint or impurities in the pocket or tool bag from entering the alarm through the air inlet 9 and reducing the alarm's accuracy. The air inlet 9 can also be cleaned by the scraper 13 and the sealing plug 15 to prevent blockage and reduce the alarm's detection accuracy.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable gas alarm with location capability, comprising a housing (1), characterized in that: A display screen (2) is provided on the front side of the housing (1), a control button (3) is provided below the display screen (2), a sound hole (4) is provided on the lower side of the control button (3), a main control circuit board (5) is provided inside the housing (1), a sensor assembly (6) is provided above the main control circuit board (5), a positioning assembly (7) is provided on the front side of the main control circuit board (5), and a buzzer assembly (8) is installed on the side of the sound hole (4) facing the inside of the housing (1). The upper end of the housing (1) is provided with a sliding groove (10), and air inlets (9) are provided on both sides of the sliding groove (10). Through grooves (11) are provided on both sides of the air inlets (9). A scraper (13) is slidably engaged in the sliding groove (10). Positioning rods (131) are installed at both ends of the scraper (13) facing the through groove (11). A baffle (14) is provided above the sensor assembly (6). A through hole (16) is provided in the middle of the upper end of the baffle (14). Sealing plugs (15) are installed on both sides of the through hole (16). Limiting plates (17) are installed on both sides of the sealing plugs (15).

2. The portable gas alarm with location capability according to claim 1, characterized in that: The housing (1) has a movable groove (12) on its side wall, and a lever (18) is installed on the side wall of the baffle (14), the lever (18) passing through the movable groove (12).

3. The portable gas alarm with location capability according to claim 1, characterized in that: The sealing plug (15) engages with the air inlet (9).

4. The portable gas alarm with location capability according to claim 1, characterized in that: The limiting plate (17) passes through the through groove (11).

5. The portable gas alarm with location capability according to claim 1, characterized in that: The positioning rod (131) is in abutting contact with the limiting plate (17).

6. The portable gas alarm with location capability according to claim 1, characterized in that: The end face of the scraper (13) is in contact with the upper end face of the shell (1).

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