Portable combustible gas detector

Abstract

The utility model relates to the field of combustible gas detectors, and discloses a portable combustible gas detector, which comprises a detector body, the front surface of the detector body is movably connected with a protective cover, the inner wall of the protective cover is fixedly connected with a transparent plate, and the bottom of the detector body is fixedly provided with a detection rod. The outer wall of the detection rod is movably connected with a protection cover, one side of the detector body is fixedly connected with a sleeve, and the inner wall of the sleeve is movably connected with a rotating shaft. According to the portable combustible gas detector, through the arrangement of the detector body, the sleeve, the bearing, the rotating shaft, the coil spring, the connecting block, the lifting rope and the anti-falling block, the detector can be convenient to carry, and when the combustible gas detector is used, the detector body can be retracted and worn on an arm or a palm through the lifting rope in a simple and rapid mode; therefore, the carrying stability is improved, the problems that the detector body is damaged due to the separation problem and the like are avoided, and the use and suction requirements of people are met.

Description

Technical Field

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

[0002] Combustible gas detectors are detectors that respond to the concentration of one or more combustible gases. There are two types of combustible gas detectors: catalytic and infrared optical. Catalytic combustible gas detectors use the change in resistance of a heated platinum wire to determine the concentration of the combustible gas. When combustible gas enters the detector, it causes an oxidation reaction on the surface of the platinum wire, generating heat that raises the temperature of the wire, thus changing its resistivity. Infrared optical detectors use an infrared sensor to detect alkane combustible gases in the environment through the absorption principle of an infrared light source.

[0003] The existing technology has the following problems:

[0004] Existing combustible gas detectors are not convenient to carry. Most combustible gas detectors are small in size and are used by hand. However, their lack of a portable structure makes them prone to slipping and falling when held or carried. Once dropped, they are likely to be damaged by impact. Utility Model Content

[0005] (a) Technical problems to be solved

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

[0007] (II) Technical Solution

[0008] To achieve the aforementioned portability, this utility model provides the following technical solution: a portable combustible gas detector, comprising a detector body, a protective cover movably connected to the front of the detector body, a transparent plate fixedly connected to the inner wall of the protective cover, a detection rod fixedly installed at the bottom of the detector body, a protective cover movably connected to the outer wall of the detection rod, a sleeve fixedly connected to one side of the detector body, and a rotating shaft movably connected to the inner wall of the sleeve.

[0009] A coil spring is fixedly connected to the outer wall of the rotating shaft, and a connecting block is movably connected to the outer wall of the rotating shaft. A lifting rope is fixedly connected to one side of the connecting block, and an anti-detachment block is movably connected to one end of the rotating shaft. A slider is fixedly connected to the bottom of the connecting block, which makes the detector easy to carry. When using the combustible gas detector, the detector body can be easily and quickly retracted onto the arm or palm using the lifting rope, thereby improving the stability of carrying and avoiding problems such as detachment that could damage the detector body, thus meeting people's needs for use.

[0010] Preferably, the inner wall of the sleeve is provided with a bearing, and the sleeve is movably connected to the rotating shaft via the bearing. The rotating shaft frequently needs to be pulled out or retracted to use or retract the lifting rope. The bearing extends the service life of the rotating shaft and the entire detector by reducing direct friction between the rotating shaft and fixed components. The bearing ensures smooth rotation of the rotating shaft during pulling out and retracting, preventing jamming or excessive resistance from affecting operation. This is particularly important for emergency scenarios requiring rapid response, ensuring the detector can be quickly put into use.

[0011] Preferably, the inner wall of the sleeve has a mounting groove, and the sleeve is fixedly connected to the coil spring through the mounting groove. The rotating shaft is rotatably connected to the mounting groove on the sleeve through a bearing, and a coil spring is provided between the rotating shaft and the wall of the mounting groove. The coil spring is sleeved on the rotating shaft, with one end fixedly connected to the rotating shaft and the other end fixedly connected to the wall of the mounting groove. When the lifting rope is not in use, the lifting rope can automatically wind around the rotating shaft under the elastic force of the coil spring, making the detector more compact and portable. When the lifting rope is needed, the user can easily pull out the lifting rope.

[0012] Preferably, a magnetic block is fixedly connected to the top of the detector body, and the detector body is movably connected to the protective cover via the magnetic block. The protective cover and the detector body are connected via the magnetic block. The magnetic block allows the protective cover to be firmly attached to the detector body through magnetic attraction. When it is necessary to view the display screen or operate the buttons, the user can easily open the protective cover, and close it again when not in use to protect the display screen and buttons.

[0013] Preferably, the inner wall of the anti-detachment block is provided with a threaded groove, and the rotating shaft is movably connected to the anti-detachment block through the threaded groove. The threaded groove allows the anti-detachment block to be quickly installed and removed from one end of the rotating shaft, thereby providing a limiting seal for the sliding groove opened on the rotating shaft, preventing the connecting block and the slider from easily detaching from the rotating shaft, thus ensuring the stability of the lifting rope. Conversely, when disassembling, it is convenient for people to disassemble the connecting block to replace the lifting rope.

[0014] Preferably, the front of the rotating shaft is provided with a sliding groove, and the rotating shaft is movably connected to the connecting block through a slider and the sliding groove. The slider and the sliding groove allow the connecting block to be installed and removed from the rotating shaft by sliding, so that when the lifting rope is damaged or broken, it can be disassembled and replaced in a simple way.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a portable combustible gas detector, which has the following advantages:

[0017] This portable combustible gas detector, with its detector body, sleeve, bearing, rotating shaft, coil spring, connecting block, lifting rope, and anti-detachment block, is designed for easy carrying. When using the combustible gas detector, the detector body can be easily and quickly retracted onto the arm or palm using the lifting rope, thereby improving carrying stability and preventing damage to the detector body due to detachment, thus meeting people's needs for safe use. Attached Figure Description

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

[0019] Figure 2 This is a sectional view of the connection between the sleeve and the rotating shaft in three dimensions of this utility model;

[0020] Figure 3 This is a schematic diagram showing the connection between the detector body and the protective cover of this utility model in three dimensions;

[0021] Figure 4 This is a schematic diagram of the connection between the rotating shaft and the coil spring in this utility model.

[0022] In the diagram: 1. Detector body; 2. Protective cover; 3. Transparent plate; 4. Magnetic block; 5. Detector rod; 6. Protective cover; 7. Sleeve; 8. Bearing; 9. Rotating shaft; 10. Coil spring; 11. Connecting block; 12. Lifting rope; 13. Anti-detachment block; 14. Sliding block; 15. Slide groove. 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 portable combustible gas detector provided by this utility model is as follows: Figures 1 to 4 As shown: A portable combustible gas detector includes a detector body 1, a protective cover 2 movably connected to the front of the detector body 1, a transparent plate 3 fixedly connected to the inner wall of the protective cover 2, a detector rod 5 fixedly installed at the bottom of the detector body 1, a protective cover 6 movably connected to the outer wall of the detector rod 5, a sleeve 7 fixedly connected to one side of the detector body 1, and a rotating shaft 9 movably connected to the inner wall of the sleeve 7.

[0026] A coil spring 10 is fixedly connected to the outer wall of the rotating shaft 9, and a connecting block 11 is movably connected to the outer wall of the rotating shaft 9. A lifting rope 12 is fixedly connected to one side of the connecting block 11, and an anti-detachment block 13 is movably connected to one end of the rotating shaft 9. A slider 14 is fixedly connected to the bottom of the connecting block 11. This makes the detector easy to carry. When using the combustible gas detector, the detector body 1 can be easily and quickly retracted and worn on the arm or palm via the lifting rope 12, thereby improving the stability of carrying and avoiding problems such as detachment that could damage the detector body 1, thus meeting people's needs for use.

[0027] In this embodiment, a bearing 8 is provided on the inner wall of the sleeve 7, and the sleeve 7 is movably connected to the rotating shaft 9 via the bearing 8. The rotating shaft 9 frequently needs to be pulled out or retracted to use or retract the lifting rope 12. The bearing 8 extends the service life of the rotating shaft 9 and the entire detector by reducing direct friction between the rotating shaft 9 and the fixed components. The bearing 8 ensures that the rotating shaft 9 can rotate smoothly when pulled out and retracted, without affecting operation due to jamming or excessive resistance. This is especially important for emergency scenarios requiring rapid response, ensuring that the detector can be quickly put into use.

[0028] In this embodiment, the inner wall of the sleeve 7 is provided with an installation groove, and the sleeve 7 is fixedly connected to the coil spring 10 through the installation groove. The rotating shaft 9 is rotatably connected to the installation groove on the sleeve 7 through the bearing 8, and the coil spring 10 is provided between the rotating shaft 9 and the wall of the installation groove. The coil spring 10 is sleeved on the rotating shaft 9, with one end fixedly connected to the rotating shaft 9 and the other end fixedly connected to the wall of the installation groove. When the lifting rope 12 is not in use, the lifting rope 12 can automatically wind around the rotating shaft 9 under the elastic force of the coil spring 10, making the detector more compact and portable. When the lifting rope 12 needs to be used, the user can easily pull out the lifting rope 12.

[0029] Example 2

[0030] Based on Embodiment 1, a preferred embodiment of the portable combustible gas detector provided by this utility model is as follows: Figures 1 to 4As shown: A magnetic block 4 is fixedly connected to the top of the detector body 1, and the detector body 1 is movably connected to the protective cover 2 through the magnetic block 4. The protective cover 2 and the detector body 1 are connected through the magnetic block 4. The magnetic block 4 allows the protective cover 2 to be firmly attached to the detector body 1 through magnetic attraction. When it is necessary to view the display screen or operate the buttons, the user can easily open the protective cover 2, and close the protective cover 2 when not in use to protect the display screen and buttons.

[0031] In this embodiment, the inner wall of the anti-detachment block 13 is provided with a threaded groove, and the rotating shaft 9 is movably connected to the anti-detachment block 13 through the threaded groove. The threaded groove allows the anti-detachment block 13 to be quickly installed and removed from one end of the rotating shaft 9, thereby providing a limiting seal for the sliding groove 15 opened on the rotating shaft 9, preventing the connecting block 11 and the slider 14 from easily detaching from the rotating shaft 9, thus ensuring the stability of the lifting rope 12. Conversely, when disassembling, it is convenient for people to disassemble the connecting block 11 to replace the lifting rope 12.

[0032] Furthermore, a groove 15 is provided on the front of the rotating shaft 9, and the rotating shaft 9 is movably connected to the connecting block 11 through the slider 14 and the groove 15. The slider 14 cooperates with the groove 15 to allow the connecting block 11 to be installed and removed from the rotating shaft 9 by sliding. In this way, when the lifting rope 12 is damaged or broken, it can be disassembled and replaced in a simple way.

[0033] In use, the protective cover 2 can be pulled up to detach it from the magnetic block 4 and thus remove it from the detector body 1. Then, the protective cover 6 can be removed from the detector rod 5 by rotation. After that, the lifting rope 12 can be pulled to make the rotating shaft 9 and the coil spring 10 rotate, thus stretching the lifting rope 12. Then, the lifting rope 12 can be put on the arm or palm. Then, the coil spring 10 will reset and drive the rotating shaft 9 to rotate in the opposite direction, so that the lifting rope 12 can be wound around the outer wall of the rotating shaft 9 to complete the winding. Thus, the wound lifting rope 12 is used to secure the arm or palm, thereby completing the work.

[0034] In summary, this portable combustible gas detector achieves the goal of easy portability. When using the combustible gas detector, the detector body 1 can be easily and quickly retracted onto the arm or palm using the carrying strap 12, thereby improving the stability of carrying and avoiding problems such as detachment that could damage the detector body 1, thus meeting people's needs for use.

[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 portable flammable gas detector comprising a detector body (1) characterised in that: A protective cover (2) is movably connected to the front of the detector body (1), and a transparent plate (3) is fixedly connected to the inner wall of the protective cover (2). A detection rod (5) is fixedly installed at the bottom of the detector body (1), and a protective cover (6) is movably connected to the outer wall of the detection rod (5). A sleeve (7) is fixedly connected to one side of the detector body (1), and a rotating shaft (9) is movably connected to the inner wall of the sleeve (7). A coil spring (10) is fixedly connected to the outer wall of the rotating shaft (9), a connecting block (11) is movably connected to the outer wall of the rotating shaft (9), a lifting rope (12) is fixedly connected to one side of the connecting block (11), an anti-detachment block (13) is movably connected to one end of the rotating shaft (9), and a slider (14) is fixedly connected to the bottom of the connecting block (11).

2. A portable combustible gas detector according to claim 1, characterized in that: The inner wall of the sleeve (7) is provided with a bearing (8), and the sleeve (7) is movably connected to the rotating shaft (9) through the bearing (8).

3. A portable combustible gas detector according to claim 1, characterized in that: The inner wall of the sleeve (7) is provided with an installation groove, and the sleeve (7) is fixedly connected to the coil spring (10) through the installation groove.

4. A portable combustible gas detector according to claim 1, characterized in that: A magnetic block (4) is fixedly connected to the top of the detector body (1), and the detector body (1) is movably connected to the protective cover (2) through the magnetic block (4).

5. A portable combustible gas detector according to claim 1, characterized in that: The inner wall of the anti-detachment block (13) is provided with a threaded groove, and the rotating shaft (9) is movably connected to the anti-detachment block (13) through the threaded groove.

6. A portable combustible gas detector according to claim 1, characterized in that: The rotating shaft (9) has a groove (15) on its front side, and the rotating shaft (9) is movably connected to the connecting block (11) through the slider (14) and the groove (15).

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