Modular single-gas portable gas detector

Abstract

The utility model provides a kind of modular single gas portable gas detector belongs to gas safety monitoring technical field.Solve the problem of high equipment procurement cost, inconvenience and maintenance complexity caused by the function solidification of traditional single gas detector, sensor cannot be replaced flexibly.It includes shell assembly and sensor circuit module, the sensor circuit module is installed in shell assembly inside, the shell assembly includes upper shell and lower shell, the upper shell is provided with protruding buckle, the lower shell is provided with soft glue part, the buckle is correspondingly arranged with soft glue part, the sensor circuit module includes battery, circuit board and gas sensor, the battery is connected with circuit board, the circuit board is connected with lower shell, the gas sensor is detachably connected on circuit board by its own plug.It is mainly used for gas detection.

Description

Technical Field

[0001] This utility model belongs to the field of gas safety monitoring technology, and in particular relates to a modular single-gas portable gas detector. Background Technology

[0002] Most single-gas detectors on the market are currently designed as fixed units, meaning each detector can only detect one specific gas (such as oxygen, carbon monoxide, hydrogen sulfide, etc.). This design results in fixed functionality and a lack of flexibility. If a user needs to detect another gas, they must purchase a new unit. This not only increases equipment procurement costs but also forces users to carry multiple devices to handle the risks of various gases, increasing operational burden and inconvenience. Although single-gas detectors are generally smaller than multi-function detectors, the total volume, weight, and cost of purchasing multiple devices to handle multiple gases may actually exceed that of a single multi-function detector, failing to truly reflect the portability and economic advantages of single-gas instruments.

[0003] In terms of repair and maintenance, when the sensor reaches the end of its lifespan or is damaged, it needs to be replaced by a professional who disassembles the main unit. The operation is complicated, and the sensors have poor compatibility. Different brands, and even different models of the same brand, often have different physical dimensions and electrical interfaces, which makes it impossible for users to quickly replace and repair according to temporary and changing operational needs. Utility Model Content

[0004] In view of this, the present invention aims to propose a modular single-gas portable gas detector to solve the problems of high equipment procurement costs, inconvenience in carrying and complex maintenance caused by the fixed functions and inability to flexibly replace sensors of traditional single-gas detectors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a modular single-gas portable gas detector, comprising a housing assembly and a sensor circuit module, wherein the sensor circuit module is installed inside the housing assembly, the housing assembly comprising an upper housing and a lower housing, the upper housing having a protruding buckle, and the lower housing having a soft rubber portion, the buckle being correspondingly disposed with the soft rubber portion, the sensor circuit module comprising a battery, a circuit board and a gas sensor, the battery being connected to the circuit board, the circuit board being connected to the lower housing, and the gas sensor being detachably connected to the circuit board via its own plug.

[0006] Furthermore, the circuit board is connected to the lower housing via a quick-connect connector.

[0007] Furthermore, a back clip is connected to the lower housing.

[0008] Furthermore, the battery is attached to the inside of the lower casing using adhesive.

[0009] Furthermore, the circuit board integrates a display screen, and the upper housing is provided with a transparent window, with the display screen and the transparent window positioned corresponding to each other.

[0010] Furthermore, the circuit board is provided with a charging port, and the charging port is provided with a charging port protective plug.

[0011] Furthermore, the battery is electrically connected to the circuit board via quick-connect terminals.

[0012] Furthermore, the upper housing is provided with operation buttons, which are electrically connected to the circuit board.

[0013] Furthermore, a buzzer is connected to the circuit board, and an air inlet and a buzzer hole are provided on the upper housing.

[0014] Furthermore, the gas sensor is a combustible gas sensor or a toxic gas sensor.

[0015] Compared with existing technologies, the advantages of this invention are as follows: This invention achieves functional flexibility for a single gas detector through modular design. Users only need to replace different integrated gas sensors or gas sensors and response circuit boards via a plug-in structure, eliminating the need to repeatedly purchase the entire device and significantly reducing procurement costs. The gas sensor adopts a standardized interface design and connects to the circuit board via a plug-in method, allowing for equipment maintenance and gas sensor replacement without the need for specialized tools and technicians; ordinary users can easily complete the operation.

[0016] This invention effectively solves the problem of inconvenience in carrying traditional single-gas detectors. Users only need to carry one main unit and several gas sensors, which significantly reduces the size and weight compared to carrying multiple complete devices, truly leveraging the portability advantage of single-gas detectors. The modular structure design makes the installation and disassembly of each component simple. The upper shell uses an elastic snap-fit ​​fixing method, and the internal circuit board uses quick-connect connectors, enabling rapid assembly and replacement.

[0017] This invention improves equipment utilization and cost-effectiveness. A single host unit can utilize all sensor modules in rotation, increasing equipment utilization and avoiding the waste of idle single-function equipment. Users can flexibly select sensors of different specifications according to actual needs to meet temporary or changing operational requirements. Attached Figure Description

[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1This is a schematic diagram of the overall structure of a modular single-gas portable gas detector according to the present invention; Figure 2 This is a schematic diagram of the exploded structure of a modular single-gas portable gas detector according to the present invention.

[0019] In the picture: 1-Upper housing, 2-Lower housing, 3-Battery, 4-Circuit board, 5-Quick connector, 6-Charging port protective plug, 7-Gas sensor, 8-Back clip. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0021] See Figure 1-2 This embodiment describes a modular single-gas portable gas detector, comprising a housing assembly and a sensor circuit module. The sensor circuit module is installed inside the housing assembly. The housing assembly includes an upper housing 1 and a lower housing 2. The upper housing 1 is provided with a protruding buckle, and the lower housing 2 is provided with a soft rubber portion. The buckle and the soft rubber portion are correspondingly arranged. The sensor circuit module includes a battery 3, a circuit board 4, and a gas sensor 7. The battery 3 is connected to the circuit board 4, and the circuit board 4 is connected to the lower housing 2. The gas sensor 7 is detachably connected to the circuit board 4 via its own plug.

[0022] In this embodiment, the circuit board 4 is connected to the lower housing 2 via a quick-connect connector 5. A back clip 8 is connected to the lower housing 2. The battery 3 is attached to the inside of the lower housing 2 with adhesive. The circuit board 4 integrates a display screen. The upper housing 1 has a transparent window, and the display screen and the transparent window are positioned correspondingly. The circuit board 4 has a charging port, and a charging port protective plug 6 is provided on the charging port. The battery 3 is electrically connected to the circuit board 4 via quick-connect terminals. The upper housing 1 has operation buttons, which are electrically connected to the circuit board 4. A buzzer is connected to the circuit board 4. The upper housing 1 has an air inlet and a buzzer hole. The gas sensor 7 is a combustible gas sensor or a toxic gas sensor.

[0023] The specific implementation method is described below: A modular single-gas portable gas detector mainly includes a housing assembly and a sensor circuit module. The housing assembly includes an upper housing 1 and a lower housing 2. The upper housing 1 has protruding buckles, and the lower housing 2 has a corresponding soft rubber part. The housing can be quickly assembled and disassembled by the cooperation of the buckles and the soft rubber part. The upper housing 1 also has a transparent window, operation buttons, an air inlet, and a buzzer hole. The transparent window is used to observe the display screen integrated on the circuit board 4, the operation buttons are used for human-machine interaction, the air inlet allows the gas to be tested to enter, and the buzzer hole is used for the propagation of the audible alarm signal.

[0024] The sensor circuit module, including battery 3, circuit board 4, and gas sensor 7, is installed inside the housing. Battery 3 is fixed inside the lower housing 2 with adhesive backing and electrically connected to circuit board 4 via quick-connect terminals, providing power to the entire detector. Circuit board 4 is mounted on the lower housing 2 via quick-connect connectors 5, facilitating quick disassembly and maintenance. Circuit board 4 integrates components such as a display screen and charging port, with a protective plug 6 to effectively prevent dust and liquid from entering. Gas sensor 7 is detachably connected to circuit board 4 via its own plug, allowing for easy sensor replacement without specialized tools, enabling ordinary users to perform the task easily. Gas sensor 7 can be selected from different types, such as combustible gas sensors or toxic gas sensors, depending on the detection requirements.

[0025] A back clip 8 is installed on the outside of the lower housing 2, secured with screws, making it easy for users to carry the device. When it is necessary to replace the gas sensor 7, simply press the soft rubber part of the lower housing 2 to disengage the clip, allowing the upper housing 1 to be removed and the internal sensor circuit module exposed. The original gas sensor 7 can then be removed, the new gas sensor 7 inserted, and the upper housing 1 re-fastened to complete the replacement. The entire replacement process is simple and quick, requiring no special tools.

[0026] The specific embodiments of this utility model disclosed above are merely illustrative of the present utility model. These specific embodiments do not exhaustively describe all details, nor do they limit the utility model to only the described embodiments. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A modular single-gas portable gas detector, characterized by: The device includes a housing assembly and a sensor circuit module. The sensor circuit module is installed inside the housing assembly. The housing assembly includes an upper housing (1) and a lower housing (2). The upper housing (1) is provided with a protruding buckle, and the lower housing (2) is provided with a soft rubber part. The buckle and the soft rubber part are correspondingly provided. The sensor circuit module includes a battery (3), a circuit board (4), and a gas sensor (7). The battery (3) is connected to the circuit board (4), and the circuit board (4) is connected to the lower housing (2). The gas sensor (7) is detachably connected to the circuit board (4) through its own plug.

2. The modular, single-gas, portable gas detection instrument of claim 1, wherein: The circuit board (4) is connected to the lower housing (2) via a quick-connect connector (5).

3. The modular single-gas portable gas detector according to claim 1, characterized in that: A back clip (8) is connected to the lower housing (2).

4. The modular, single-gas, portable gas detection instrument of claim 1, wherein: The battery (3) is attached to the inside of the lower casing (2) by adhesive backing.

5. The modular, single-gas, portable gas detection instrument of claim 1, wherein: The circuit board (4) is equipped with a display screen, and the upper housing (1) is provided with a transparent window, with the display screen and the transparent window being positioned corresponding to each other.

6. The modular, single-gas, portable gas detection instrument of claim 1, wherein: The circuit board (4) is provided with a charging port, and the charging port is provided with a charging port protective plug (6).

7. The modular, single-gas, portable gas detection instrument of claim 1, wherein: The battery (3) is electrically connected to the circuit board (4) via quick-connect terminals.

8. The modular, single-gas, portable gas detection instrument of claim 1, wherein: The upper housing (1) is provided with operation buttons, which are electrically connected to the circuit board (4).

9. The modular, single-gas, portable gas detection instrument of claim 1, wherein: A buzzer is connected to the circuit board (4), and an air inlet and a buzzer hole are provided on the upper housing (1).

10. The modular, single-gas, portable gas detection instrument of claim 1, wherein: The gas sensor (7) is a combustible gas sensor or a toxic gas sensor.

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