Combustible gas detector convenient to hold by hand

Abstract

The utility model relates to the field of combustible gas detectors, and discloses a combustible gas detector convenient to hold, which comprises a detector body, the top of the detector body is fixedly connected with a fixing block, the front surface of the fixing block is movably connected with an adjusting block, one side of the adjusting block is fixedly connected with a protective frame plate, and the other side of the adjusting block is fixedly connected with the protective frame plate. The inner wall of the protection frame plate is fixedly connected with a transparent protection plate, and the front face of the positioning block is movably connected with a positioning pin. The combustible gas detector convenient to hold can achieve the purpose of being convenient to hold, when the combustible gas detector is used for determining the concentration of combustible gas in air, the combustible gas detector can be stably installed and worn on an arm in a simple and rapid mode, so that the two hands are liberated to carry out corresponding emergency treatment, the detector is fixed to the arm, and the detector is convenient to use. An operator does not need to hold the detector with hands all the time, compared with long-time direct holding of the detector, the arm fixing mode can relieve hand fatigue, the detector is suitable for long-time detection work, and the requirements of people are met.

Description

Technical Field

[0001] This utility model relates to the field of combustible gas detectors, specifically a handheld combustible gas detector. Background Technology

[0002] Combustible gas detectors use specific sensors to detect combustible gases in the air. When the detected concentration exceeds a preset safety threshold, an alarm system is quickly triggered, emitting an audible and visual alarm to alert personnel to take timely action. The working principle of a combustible gas detector is based on the sensor's perception and signal processing of combustible gases in the air. Its core component is the sensor, and common sensor types include catalytic combustion, electrochemical, and infrared types. These sensors convert the combustible gas concentration into an electrical signal output through chemical or physical reactions. After amplification and filtering, the signal is sent to a microprocessor for further processing. The microprocessor analyzes and judges the electrical signal according to a preset concentration threshold and algorithm to determine the concentration of combustible gas in the air.

[0003] The existing technology has the following problems:

[0004] Existing combustible gas detectors are not convenient to hold, meaning they may be difficult to operate with one hand or require frequent adjustments to the grip. This reduces detection efficiency, especially in emergency situations requiring rapid response, and may also cause the detector to accidentally fall off during use. This could not only damage or lose the detector, but also distract operators as they try to retrieve it, causing them to overlook surrounding safety hazards. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a handheld combustible gas detector, which has advantages such as ease of handheld use and solves the problems mentioned in the background technology.

[0007] (II) Technical Solution

[0008] To achieve the aforementioned purpose of easy handheld use, this utility model provides the following technical solution: a handheld combustible gas detector, comprising a detector body, a fixing block fixedly connected to the top of the detector body, an adjusting block movably connected to the front of the fixing block, a protective frame plate fixedly connected to one side of the adjusting block, a transparent protective plate fixedly connected to the inner wall of the protective frame plate, an insert block fixedly connected to one side of the protective frame plate, and a positioning block fixedly connected to one side of the detector body.

[0009] The positioning block is movably connected to a positioning pin on its front side, and an arm plate is fixedly connected to the bottom of the detector body. A restraint ruler plate is fixedly installed on the bottom of the arm plate. A housing is fixedly connected to one side of the arm plate, and an adjustment rod is movably connected to the front of the housing. An adjustment gear is fixedly connected to the outer wall of the adjustment rod. This design allows the detector to be easily held in the hand. When using the combustible gas detector to determine the concentration of combustible gas in the air, it can be easily and quickly installed and worn on the arm, freeing the hands for emergency handling. Furthermore, by fixing the detector to the arm, the operator does not need to hold it with their hand for extended periods. Compared to holding the detector directly for a long time, the arm-fixed method reduces hand fatigue and is suitable for long-term detection work, meeting people's usage needs.

[0010] Preferably, the bottom of the restraint scale plate has a toothed opening, and the restraint scale plate is movably connected to the adjusting gear through the toothed opening. The toothed opening not only enhances the meshing stability between the restraint scale plate and the adjusting gear, but also ensures the smoothness and accuracy of the adjustment process. When the adjusting gear rotates, its teeth can precisely engage with the toothed opening of the restraint scale plate, thereby driving the restraint scale plate to slide along the inner wall of the housing, realizing the tightening or loosening operation of the arm. This design allows the detector to be worn more securely on the arm, while also facilitating quick adjustments by the user according to actual needs.

[0011] Preferably, the front of the housing has a movable groove, and the housing is movably connected to the restraint plate through the movable groove. The design of the movable groove allows the restraint plate to slide freely inside the housing, while ensuring that the restraint plate remains smooth and stable when extended out of the housing. The width and depth of the movable groove are precisely calculated to ensure that the restraint plate is not obstructed or jammed during sliding. This design not only improves the ease of use of the detector but also enhances its durability and reliability.

[0012] Preferably, the front of the fixed block is movably connected to an adjusting shaft, and the fixed block is movably connected to the adjusting block via the adjusting shaft. The adjusting shaft acts as a connecting pivot, allowing the adjusting block to rotate or swing within a certain range. This design allows the protective frame plate and transparent protective plate to be opened or closed as needed, thereby protecting the buttons and display screen of the detector body from external interference or damage.

[0013] Preferably, the front of the insert block is provided with a positioning groove, and the insert block is movably connected to the positioning pin through the positioning groove. The positioning groove and the positioning pin cooperate to achieve a stable locking of the protective frame plate and the transparent protective plate. When the positioning pin is inserted into the positioning groove, it can prevent the adjusting block from rotating or swinging accidentally, thereby ensuring that the protective frame plate and the transparent protective plate always remain in the correct position.

[0014] Preferably, a return spring is fixedly connected to one side of the positioning pin. The return spring, as an elastic element, has one end fixedly connected to the positioning pin and the other end firmly fixed to the outside of the positioning block. When the user needs to open the protective frame plate and the transparent protective plate, they only need to gently pull the positioning pin to disengage it from the positioning slot of the insertion block. Once the pulling force disappears, the return spring immediately performs its reset function, pushing the positioning pin back to its original position and re-inserting it into the positioning slot. This design not only simplifies the operation process but also improves the safety and stability of the detector.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a handheld combustible gas detector with the following advantages:

[0017] This handheld combustible gas detector, with its detector body, arm plate, restraint scale, housing, adjustment rod, and adjustment gear, is designed for easy handheld use. When determining the concentration of combustible gas in the air, it can be easily and quickly and securely mounted on the arm, freeing the hands for emergency handling. Furthermore, by fixing the detector to the arm, the operator does not need to hold it constantly. Compared to holding the detector directly for extended periods, the arm-fixed design reduces hand fatigue, making it suitable for long-term detection work and meeting user needs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the connection between the binding ruler plate and the adjusting gear in this utility model.

[0020] Figure 3 This is a cross-sectional view showing the connection between the insert block and the positioning block structure of this utility model;

[0021] Figure 4 This is a schematic diagram showing the connection between the protective frame plate and the transparent protective plate of this utility model in three dimensions.

[0022] In the diagram: 1. Detector body; 2. Fixing block; 3. Adjusting shaft; 4. Adjusting block; 5. Protective frame plate; 6. Transparent protective plate; 7. Insert block; 8. Positioning block; 9. Positioning pin; 10. Return spring; 11. Arm plate; 12. Restraining ruler plate; 13. Housing; 14. Adjusting rod; 15. Adjusting gear. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0024] Example 1

[0025] A preferred embodiment of the handheld combustible gas detector provided by this utility model is, for example... Figures 1 to 4 As shown: A handheld combustible gas detector includes a detector body 1, a fixing block 2 fixedly connected to the top of the detector body 1, an adjusting block 4 movably connected to the front of the fixing block 2, a protective frame plate 5 fixedly connected to one side of the adjusting block 4, a transparent protective plate 6 fixedly connected to the inner wall of the protective frame plate 5, an insert block 7 fixedly connected to one side of the protective frame plate 5, and a positioning block 8 fixedly connected to one side of the detector body 1.

[0026] A positioning pin 9 is movably connected to the front of the positioning block 8. An arm plate 11 is fixedly connected to the bottom of the detector body 1. A restraint ruler plate 12 is fixedly installed at the bottom of the arm plate 11. A housing 13 is fixedly connected to one side of the arm plate 11. An adjusting rod 14 is movably connected to the front of the housing 13. An adjusting gear 15 is fixedly connected to the outer wall of the adjusting rod 14. This allows the detector to be easily held in the hand. When using the combustible gas detector to determine the concentration of combustible gas in the air, it can be easily and quickly installed and worn on the arm, thereby freeing the hands to perform corresponding emergency handling operations. Furthermore, by fixing the detector on the arm, the operator does not need to hold it with their hand all the time. Compared with holding the detector directly for a long time, the arm-fixed method can reduce hand fatigue and is suitable for long-term detection operations, meeting people's usage needs.

[0027] In this embodiment, the bottom of the restraint plate 12 is provided with a toothed opening, and the restraint plate 12 is movably connected to the adjusting gear 15 through the toothed opening. The toothed opening not only enhances the meshing stability between the restraint plate 12 and the adjusting gear 15, but also ensures the smoothness and accuracy of the adjustment process. When the adjusting gear 15 rotates, its teeth can precisely engage with the toothed opening of the restraint plate 12, thereby driving the restraint plate 12 to slide along the inner wall of the housing 13, realizing the tightening or loosening operation of the arm. This design allows the detector to be worn more securely on the arm, while also facilitating quick adjustment by the user according to actual needs.

[0028] In this embodiment, a movable groove is provided on the front of the housing 13, and the housing 13 is movably connected to the restraint ruler 12 through the movable groove. The design of the movable groove allows the restraint ruler 12 to slide freely inside the housing 13, while ensuring that the restraint ruler 12 remains stable and smooth when it extends out of the housing 13. The width and depth of the movable groove are precisely calculated to ensure that the restraint ruler 12 is not obstructed or jammed during sliding. This design not only improves the ease of use of the detector, but also enhances its durability and reliability.

[0029] Example 2

[0030] Based on Embodiment 1, a preferred embodiment of the handheld combustible gas detector provided by this utility model is, for example... Figures 1 to 4 As shown: The front of the fixed block 2 is movably connected to the adjusting shaft 3, and the fixed block 2 is movably connected to the adjusting block 4 through the adjusting shaft 3. The adjusting shaft 3 acts as a connecting hub, allowing the adjusting block 4 to rotate or swing within a certain range. This design allows the protective frame plate 5 and the transparent protective plate 6 to be opened or closed as needed, thereby protecting the buttons and display screen of the detector body 1 from external interference or damage.

[0031] In this embodiment, the front of the insert 7 is provided with a positioning groove, and the insert 7 is movably connected to the positioning pin 9 through the positioning groove. The positioning groove and the positioning pin 9 cooperate to achieve a stable locking of the protective frame plate 5 and the transparent protective plate 6. When the positioning pin 9 is inserted into the positioning groove, it can prevent the adjusting block 4 from rotating or swinging accidentally, thereby ensuring that the protective frame plate 5 and the transparent protective plate 6 always remain in the correct position.

[0032] Furthermore, a return spring 10 is fixedly connected to one side of the positioning pin 9. The return spring 10, as an elastic element, has one end fixedly connected to the positioning pin 9, and the other end firmly fixed to the outside of the positioning block 8. When the user needs to open the protective frame plate 5 and the transparent protective plate 6, they only need to gently pull the positioning pin 9 to disengage it from the positioning slot of the insert block 7. Once the pulling force disappears, the return spring 10 immediately performs its reset function, pushing the positioning pin 9 quickly back to its original position and re-inserting it into the positioning slot. This design not only simplifies the operation process but also improves the safety and stability of the detector.

[0033] In use, the arm plate 11 can be placed on the arm, and then the restraint ruler plate 12 can be inserted into the housing 13. Then, by rotating the adjusting rod 14, the adjusting gear 15 can be rotated. The adjusting gear 15 drives the restraint ruler plate 12 to move through the teeth and causes the restraint ruler plate 12 to be discharged through the top of the housing 13, thereby adjusting the tightness of the restraint ruler plate 12 so that it is fastened to the arm plate 11 on the user's arm, thus completing the handheld operation. When it is necessary to operate the buttons on the detector body 1, the positioning pin 9 can be pulled to move it and disengage it from the insert block 7. Then, the protective frame plate 5 and the transparent protective plate 6 can be opened by adjusting the adjusting shaft 3 and adjusting the adjusting block 4, so that the surface buttons of the detector body 1 can be operated.

[0034] In summary, this handheld combustible gas detector achieves the goal of easy handheld use. When using the combustible gas detector to determine the concentration of combustible gas in the air, it can be easily and quickly installed and worn securely on the arm, thereby freeing the hands for corresponding emergency handling operations. Furthermore, by fixing the detector to the arm, the operator does not need to hold it with their hand for a long time. Compared with holding the detector directly for a long time, the arm-fixed method can reduce hand fatigue and is suitable for long-term detection work, thus meeting people's usage needs.

[0035] 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.

[0036] 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 handheld combustible gas detector, comprising a detector body (1), characterized in that: A fixing block (2) is fixedly connected to the top of the detector body (1), an adjusting block (4) is movably connected to the front of the fixing block (2), a protective frame plate (5) is fixedly connected to one side of the adjusting block (4), a transparent protective plate (6) is fixedly connected to the inner wall of the protective frame plate (5), an insert block (7) is fixedly connected to one side of the protective frame plate (5), and a positioning block (8) is fixedly connected to one side of the detector body (1). The positioning block (8) is movably connected to the front of a positioning pin (9), the bottom of the detector body (1) is fixedly connected to an arm plate (11), the bottom of the arm plate (11) is fixedly installed with a restraint ruler plate (12), one side of the arm plate (11) is fixedly connected to a housing (13), the front of the housing (13) is movably connected to an adjusting rod (14), and the outer wall of the adjusting rod (14) is fixedly connected to an adjusting gear (15).

2. The handheld combustible gas detector according to claim 1, characterized in that: The bottom of the binding ruler plate (12) is provided with a toothed opening, and the binding ruler plate (12) is movably connected to the adjusting gear (15) through the toothed opening.

3. A handheld combustible gas detector according to claim 1, characterized in that: The front of the housing (13) is provided with a movable groove, and the housing (13) is movably connected to the binding ruler plate (12) through the movable groove.

4. A handheld combustible gas detector according to claim 1, characterized in that: The front of the fixed block (2) is movably connected to the adjusting shaft (3), and the fixed block (2) is movably connected to the adjusting block (4) through the adjusting shaft (3).

5. A handheld combustible gas detector according to claim 1, characterized in that: The front of the insert (7) is provided with a positioning groove, and the insert (7) is movably connected to the positioning pin (9) through the positioning groove.

6. A handheld combustible gas detector according to claim 1, characterized in that: A return spring (10) is fixedly connected to one side of the positioning pin (9).

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