Wristwatch type laser methane gas detector

Abstract

The utility model discloses a wristwatch type laser methane gas detector which comprises a watchcase, one end of a watchband is respectively fixed at the front end and the rear end of the watchcase, a button is fixed at the right end of the watchcase, a sintering net is fixed at the left end of the watchcase, a display screen is fixed at the upper end of the watchcase, a U-shaped detection plate is arranged in the watchcase, and a battery is fixed at the right end of the detection plate. A fixed plate is arranged at the lower end of the detection plate, a wireless charging coil is fixed at the lower end of the fixed plate, a U-shaped air chamber is formed in the upper end of the detection plate, a movable reflecting mirror and a static reflecting mirror are correspondingly arranged at two corners of the U-shaped air chamber respectively, a detector and a laser are correspondingly fixed at two ends of the air chamber respectively, and an air inlet channel is formed in the left end of the detection plate; the watchcase is worn on the wrist of a worker through the watchband, construction of the worker is not affected, meanwhile, the worker can observe whether gas in a mine is normal or not in real time, the worker does not need to repeatedly take out the detection device to check data, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a wristwatch-type laser methane gas detector. Background Art

[0002] Mine gas is a general term for toxic and harmful gases mainly composed of methane underground, sometimes referred to as methane alone. Gas is lighter than air, easy to diffuse, and has strong permeability. It is easy to pass through the rock layer from the adjacent layer and be released from the goaf. The gas itself is non-toxic, but it cannot be breathed by people. When the gas concentration in the air in the mine exceeds 50%, it can cause people to suffocate and die due to lack of oxygen. Gas can burn or explode. Gas explosion is one of the main disasters in coal mines. There have been many cases of casualties and serious damage to production due to gas explosions at home and abroad. Therefore, effective preventive measures must be taken to avoid gas explosion accidents and ensure safe production.

[0003] The existing detection equipment may encounter the following problems during use:

[0004] 1. The existing detection devices are large and inconvenient to carry. At the same time, some detection devices can be tied around the waist. When workers are working, it is inconvenient for them to twist their waists because of the detection devices tied around their waists, which affects their work.

[0005] 2. Some detection equipment is small, and workers will place it in a tool bag, causing damage to the display screen or air inlet, resulting in damage to the equipment. When taking air for measurement in the mine, dust cannot be avoided from entering the equipment, causing dust to accumulate inside the equipment, affecting the accuracy of the measurement. Utility Model Content

[0006] The purpose of the utility model is to provide a wristwatch-type laser methane gas detector, which solves the above-mentioned problems in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wristwatch-type laser methane gas detector, comprising a watch case, one end of a watch strap is fixed to the front and rear ends of the watch case respectively, a button is fixed to the right end of the watch case, a sintered mesh is fixed to the left end of the watch case, a display screen is fixed to the upper end of the watch case, a U-shaped detection plate is provided inside the watch case, a battery is fixed to the right end of the detection plate, a fixing plate is provided at the lower end of the detection plate, and a wireless charging coil is fixed to the lower end of the fixing plate;

[0008] A U-shaped air chamber is provided at the upper end of the detection plate, and a dynamic reflector and a static reflector are provided at the two corners of the U-shaped air chamber respectively. A detector and a laser are fixed at the two ends of the air chamber respectively. An air intake channel is provided at the left end of the detection plate, and the air intake channel is connected to the air chamber. The detector corresponds to the static reflector, and the laser corresponds to the dynamic reflector.

[0009] Preferably, both ends of the U-shaped air chamber are cylindrical, the center of the air chamber is rectangular, and a sealing cover is fixed to the upper end of the air chamber.

[0010] Preferably, a baffle fixedly connected to the detection board is provided at the upper end of the battery, and a circuit board is fixed at the upper end of the baffle.

[0011] Preferably, a buzzer is fixed to the inner wall of the watch case, and a filter is fixed to the outside of the buzzer.

[0012] Preferably, button batteries are symmetrically arranged at the front end of the detection board, and a vibration motor is arranged at the rear end of the detection board.

[0013] Preferably, the air inlet channel corresponds to the sintered mesh, and the air inlet channel is vertically connected to the center of the air chamber.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The watch case is worn on the worker's wrist through the strap, which will not affect the worker's construction. At the same time, the worker can observe in real time whether the gas in the mine is normal. The worker does not need to repeatedly take out the detection device to check the data, which is more convenient to use.

[0016] 2. By wearing the device on the wrist of the user and installing a sintered mesh at the air inlet channel, dust is prevented from entering the air chamber and affecting the detection results. At the same time, a filter is installed on the buzzer to prevent dust from clogging the buzzer, resulting in a small alarm sound, which may further cause the workers to miss the best escape time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is an explosion diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the interior of the watch case of the utility model;

[0020] Figure 4 It is an overall schematic diagram of the detection board of the utility model;

[0021] Figure 5 It is a schematic diagram of the detection board of the utility model.

[0022] Explanations in the figure: 1. Case; 2. Display; 3. Circuit board; 4. Battery; 5. Cover; 6. Detection board; 101. Strap; 102. Button; 103. Wireless charging coil; 104. Buzzer; 105. Filter; 106. Sintered mesh; 107. Fixed plate; 401. Baffle; 601. Detector; 602. Laser; 603. Air chamber; 604. Air inlet channel; 605. Moving reflector; 606. Static reflector; 607. Button battery; 608. Vibration motor. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 , Figure 2 ,and Figure 3A wristwatch-type laser methane gas detector comprises a watch case 1, wherein one end of a watch strap 101 is fixed to the front end and the rear end of the watch case 1 respectively, and the front end and the rear end of the watch case 1 are provided with lugs, and the two lugs respectively fix one end of the watch strap 101, and the watch case 1 fixes the device to the user's wrist through the watch strap 101, which does not affect the construction of workers. At the same time, the workers can observe in real time whether the gas in the mine is normal, and the workers do not need to repeatedly take out the detection device to check the data, which is more convenient to use. A button 102 is fixed to the right end of the watch case 1, a sintered mesh 106 is fixed to the left end of the watch case 1, a display screen 2 is fixed to the upper end of the watch case 1, a U-shaped detection plate 6 is provided inside the watch case 1, a battery 4 is fixed to the right end of the detection plate 6, a fixing plate 107 is provided at the lower end of the detection plate 6, and a wireless charging coil 103 is fixed to the lower end of the fixing plate 107, and the battery 4 is charged by the wireless charging coil 103 , wireless charging of the device is realized, the opening of the device is reduced, and dust is further reduced from entering the interior of the device. By fixing the sintered mesh 106 on the outer wall of the watch case 1, it is beneficial to filter the air, filter the dust in the air, and prevent the dust from accumulating inside the watch case 1, thereby affecting the accuracy of the detection of the device. The upper end of the battery 4 is provided with a baffle 401 fixedly connected to the detection board 6, and the upper end of the baffle 401 is fixed with a circuit board 3. A buzzer 104 is fixed on the inner wall of the watch case 1, and a filter 105 is fixed on the outside of the buzzer 104. The buzzer 104 is used to alarm, and an alarm is sounded when the gas in the mine tunnel is abnormal, quickly reminding the workers to escape. At the same time, a filter 105 is set on the outside of the buzzer 104 to prevent dust in the air of the mine tunnel from accumulating at the buzzer 104, affecting the transmission of the alarm sound of the buzzer 104. The battery 4 is used to store electrical energy, so that the device can work for a long time.

[0027] See also Figure 2 , Figure 4 and Figure 5A U-shaped air chamber 603 is provided at the upper end of the detection plate 6. A dynamic reflector 605 and a static reflector 606 are provided at two corners of the U-shaped air chamber 603. A detector 601 and a laser 602 are fixed at the two ends of the air chamber 603. The dynamic reflector 605 and the static reflector 606 are provided in the air chamber 603, which is conducive to reflecting the light generated by the laser 602 and reflecting the light to the detector 601. After the light is absorbed by the gas in the air chamber 603, the light will change. The changed light is irradiated on the detector 601 to realize gas detection. The reflection angle is adjusted by the dynamic reflector 605, so that the light can be smoothly irradiated on the detector 601. An air inlet channel 604 is provided at the left end of the detection plate 6. The air inlet channel 604 is connected to the air chamber 603. The air inlet channel 604 is vertically connected to the center of the air chamber 603. The air inlet channel 604 is vertically connected to the air chamber 603. , preventing the light emitted by the laser 602 from irradiating the outside through the air inlet channel 604 to affect the accuracy of the detection, and at the same time connecting the air inlet channel 604 to the middle of the air chamber 603, so that the air can quickly fill the air chamber 603, the detector 601 corresponds to the static reflector 606, the laser 602 corresponds to the dynamic reflector 605, the two ends of the U-shaped air chamber 603 are cylindrical, the center of the air chamber 603 is a rectangular parallelepiped, the upper end of the air chamber 603 is fixed with a cover 5, the front end of the detection plate 6 is symmetrically provided with button batteries 607, the rear end of the detection plate 6 is provided with a vibration motor 608, the air inlet channel 604 corresponds to the sintered mesh 106, by installing the vibration motor 608 on the outside of the detection plate 6, it is conducive to work when the gas is abnormal, so that the watch case 1 vibrates as a whole, and because the device is worn on the wrist of the user, the user can quickly feel the vibration of the vibration motor 608, can quickly respond, and is safer when used.

[0028] When the utility model is used:

[0029] First, the battery 4 is fully charged through the wireless charging coil 103. After the charging is completed, the device can be worn on the wrist through the strap 101 for use;

[0030] Then, when the device is used in a mine, the gas in the mine will enter the air chamber 603 through the air inlet channel 604 in real time, the laser 602 will emit light, the light will be reflected to the detector 601 through the moving reflector 605 and the static reflector 606, the light generated by the detector 601 will change after being absorbed by the gas in the air chamber 603, the changed light will be irradiated on the detector 601, and the gas will be detected. Before the gas enters the air inlet channel 604, it will be filtered through the sintered mesh 106 to filter the dust in the air and prevent the dust from accumulating inside the watch case 1;

[0031] Next, when the gas is abnormal, the buzzer 104 sounds an alarm to quickly remind the workers to escape, and at the same time the vibration motor 608 works to make the entire case 1 vibrate. Since the device is worn on the user's wrist, the user can quickly feel the vibration of the vibration motor 608 and can react quickly, which is safer when used;

[0032] Finally, a filter 105 is installed at the buzzer 104 to prevent dust in the mine tunnel air from accumulating at the buzzer 104 and thus affecting the transmission of the alarm sound of the buzzer 104 .

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wristwatch-type laser methane gas detector, characterized in that: The watch case (1) comprises a watch case (1), wherein one end of a watch strap (101) is fixed to the front and rear ends of the watch case (1), a button (102) is fixed to the right end of the watch case (1), a sintered mesh (106) is fixed to the left end of the watch case (1), a display screen (2) is fixed to the upper end of the watch case (1), a U-shaped detection plate (6) is provided inside the watch case (1), a battery (4) is fixed to the right end of the detection plate (6), a fixing plate (107) is provided at the lower end of the detection plate (6), and a wireless charging coil (103) is fixed to the lower end of the fixing plate (107); A U-shaped air chamber (603) is provided at the upper end of the detection plate (6), and a moving reflector (605) and a static reflector (606) are provided at two corners of the U-shaped air chamber (603), respectively. A detector (601) and a laser (602) are fixed at two ends of the air chamber (603), respectively. An air intake channel (604) is provided at the left end of the detection plate (6), and the air intake channel (604) is connected to the air chamber (603). The detector (601) corresponds to the static reflector (606), and the laser (602) corresponds to the moving reflector (605).

2. A wristwatch type laser methane gas detector according to claim 1, characterized in that: The two ends of the U-shaped air chamber (603) are cylindrical, the center of the air chamber (603) is rectangular, and a sealing cover (5) is fixed to the upper end of the air chamber (603).

3. The wristwatch type laser methane gas detector according to claim 1, characterized in that: The upper end of the battery (4) is provided with a baffle (401) fixedly connected to the detection board (6), and the upper end of the baffle (401) is fixed with a circuit board (3).

4. The wristwatch type laser methane gas detector according to claim 1, characterized in that: A buzzer (104) is fixed on the inner wall of the watch case (1), and a filter (105) is fixed on the outside of the buzzer (104).

5. The wristwatch type laser methane gas detector according to claim 1, characterized in that: A button battery (607) is symmetrically arranged at the front end of the detection board (6), and a vibration motor (608) is arranged at the rear end of the detection board (6).

6. The wristwatch type laser methane gas detector according to claim 1, characterized in that: The air inlet channel (604) corresponds to the sintered mesh (106), and the air inlet channel (604) is vertically connected to the center of the air chamber (603).

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