Mining wireless laser methane sensor for remote communication

Abstract

The utility model provides a mining wireless laser methane sensor for remote communication, which comprises a sensor body, a protection assembly I and a protection assembly II, the lower end of the sensor body is movably provided with the protection assembly I, and the left side of the sensor body is provided with the protection assembly II. Compared with the prior art, the utility model has the following beneficial effects: the sensor body is arranged, the signal processing circuit installed in the shell is connected with the laser detection element, and the signal processing circuit installed in the shell is connected with the wireless communication unit, so that the whole sensor body is simple in structure, accurate in measurement, short in response time and long in transmission distance; the sensor is simple in structure, high in anti-interference capability and particularly suitable for complex coal mine production sites, the first protection assembly and the second protection assembly are arranged, the first protection assembly and the second protection assembly which are of a net structure cannot affect normal work of the antenna, the laser methane detection element and the audible and visual alarm, and the use safety of the sensor body is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of methane sensors, and particularly relates to a long-distance communication wireless laser methane sensor for mines. Background Art

[0002] Gas injury is a common production safety accident at coal mine production sites. When the gas at the production site exceeds a certain concentration, it will not only affect the health of mine workers, but may also cause concentration accumulation and death. If you are not careful, an explosion may occur. Therefore, the detection of gas concentration in coal mines must be accurate and reliable.

[0003] The traditional method of detecting methane concentration is to use a carrier catalytic element (commonly known as a "black and white element"), which is cheap and widely used. However, it also reacts chemically with methane gas during gas detection, causing its own consumption and performance degradation, so the sensor needs to be calibrated regularly. Laser methane sensors use optical detection principles and have the advantages of high sensitivity and fast response time. They have been gradually accepted and recognized by users in recent years.

[0004] Existing methane sensors have the problem of poor protection, especially some of their exposed components, such as antennas and laser methane detection elements. Due to the working characteristics of these components, they must be exposed to the outside, and existing methane sensors lack protective structures for these components. Methane sensors working in coal mines are very easy to be damaged by objects falling from the outside. Therefore, we hope to design a laser methane sensor with a new structure to solve this problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a wireless laser methane sensor for mining with long-distance communication, so as to solve the problems raised in the above-mentioned background technology.

[0006] The utility model is realized by the following technical scheme: a long-distance communication mine wireless laser methane sensor, comprising: a sensor body, a protection component 1 and a protection component 2, wherein the protection component 1 is movably installed at the lower end of the sensor body, and the protection component 2 is installed on the left side of the sensor body;

[0007] The sensor body includes a shell, an antenna, and a handle. The antenna is installed on the left side of the shell, an aviation socket is installed on the right side of the shell, and a handle is welded on the upper side of the shell;

[0008] The protective component 1 includes a mounting frame and a metal mesh frame 1, the metal mesh frame 1 is welded to the lower side of the mounting frame, and the protective component 2 includes an internal threaded tube and a metal mesh frame 2, the metal mesh frame 2 is welded to the upper end of the internal threaded tube.

[0009] As a preferred embodiment, a display screen is installed on the upper side of the front surface of the shell, a power button is installed on the lower left side of the front surface of the shell, and a buzzer is installed on the lower right side of the front surface of the shell. In actual use, a signal processing circuit and a wireless communication unit are installed inside the shell, and a battery is installed on the upper side inside the shell.

[0010] As a preferred embodiment, a laser methane detection element is installed on the right side of the lower end of the shell, an audible and visual alarm is installed on the left side of the lower end of the shell, a back cover is provided on the rear side of the shell, and a sealing rubber pad is provided on the back cover. The sensor body is powered by a battery as a whole, and the sensor body and the external converter communicate using LoRa wireless communication. The transmission distance is long, and the methane signal can be collected and transmitted in places where it is inconvenient to lay cables. The signal is transmitted wirelessly to the wireless signal converter, and then converted by the converter into a 485 signal and transmitted to the connected superior device.

[0011] As a preferred embodiment, a fixing hole is respectively opened at the four corners, the middle of the front side and the middle of the rear side of the installation frame, and a hand screw is threadedly connected in each of the fixing holes.

[0012] As a preferred embodiment, the width and length of the installation frame match the width and length of the lower end of the shell, and the laser methane detection element and the sound and light alarm are placed inside the metal mesh frame.

[0013] As a preferred embodiment, the second protection component also includes a fixing piece, the right end of which is fixed to the shell by surface welding, a circular ring is welded on the left side of the fixing piece, and the lower side of the antenna passes through the circular ring from bottom to top.

[0014] As a preferred embodiment, an external threaded sleeve is integrally provided on the inner side of the upper end of the circular ring, the external threaded sleeve is threadedly connected to the internal threaded tube, and the upper end of the antenna is placed inside the second metal mesh frame.

[0015] After adopting the above technical solution, the beneficial effects of the utility model are as follows: by setting the sensor body, the signal processing circuit installed inside the shell is connected to the laser detection element, the collected methane concentration is processed and judged, and converted into an actual value, and the signal processing circuit installed inside the shell is connected to the wireless communication unit, and the methane concentration value is wirelessly transmitted in real time, which makes the structure of the entire sensor body simple, the measurement is accurate, the response time is fast, the transmission distance is long, and the anti-interference ability is strong, which is especially suitable for complex coal mine production sites;

[0016] The setting of the protection component 1 and the protection component 2, the mesh structure of the protection component 1 and the protection component 2 will not affect the normal operation of the antenna, the laser methane detection element and the sound and light alarm, and greatly improve the safety of the sensor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of a wireless laser methane sensor for long-distance communication for mining.

[0019] Figure 2 This is a schematic diagram of the main view of a long-distance communication wireless laser methane sensor for mining according to the utility model.

[0020] Figure 3 The utility model is a schematic diagram of the installation frame structure of a long-distance communication mine-used wireless laser methane sensor.

[0021] Figure 4 This is a schematic diagram of the connection between the metal mesh frame 2 and the internal threaded barrel of a wireless laser methane sensor for mining with long-distance communication according to the utility model.

[0022] In the figure, 100-sensor body, 110-housing, 120-antenna, 130-handle, 140-aviation socket, 150-display screen, 160-buzzer, 170-laser methane detection element, 180-sound and light alarm, 190-power on button;

[0023] 200-protection component 1, 210-hand screw, 220-installation frame, 221-fixing hole, 230-metal mesh frame 1;

[0024] 300 - protective component 2, 310 - fixing part, 320 - protective part, 321 - internal threaded cylinder, 322 - metal mesh frame 2. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 4The utility model provides a technical solution: a long-distance communication mine wireless laser methane sensor, comprising: a sensor body 100, a protection component 1 200 and a protection component 2 300, the protection component 1 200 is movably installed at the lower end of the sensor body 100, and the protection component 2 300 is installed on the left side of the sensor body 100;

[0027] The sensor body 100 includes a housing 110, an antenna 120, and a handle 130. The antenna 120 is installed on the left side of the housing 110, an aviation socket 140 is installed on the right side of the housing 110, and the handle 130 is welded on the upper side of the housing 110;

[0028] The protection component 1 200 includes a mounting frame 220 and a metal mesh frame 1 230 , the metal mesh frame 1 230 is welded to the lower side of the mounting frame 220 , and the protection component 2 300 includes an internal threaded tube 321 and a metal mesh frame 2 322 , the metal mesh frame 2 322 is welded to the upper end of the internal threaded tube 321 .

[0029] See also Figure 1 A display screen 150 is installed on the upper front surface of the shell 110, a power button 190 is installed on the lower left side of the front surface of the shell 110, and a buzzer 160 is installed on the lower right side of the front surface of the shell 110. In actual use, a signal processing circuit and a wireless communication unit are installed inside the shell 110, and a battery is installed on the upper side inside the shell 110.

[0030] A laser methane detection element 170 is installed on the right side of the lower end of the shell 110, and an audible and visual alarm 180 is installed on the left side of the lower end of the shell 110. A back cover is provided on the rear side of the shell 110, and a sealing rubber pad is provided on the back cover. The sensor body 100 is powered by a battery as a whole. The sensor body 100 and the external converter communicate using LoRa wireless communication, which has a long transmission distance and can realize the collection and transmission of methane signals in places where it is inconvenient to lay cables. The signal is transmitted wirelessly to the wireless signal converter, and then converted by the converter into a 485 signal and transmitted to the connected superior device.

[0031] As the first embodiment of the utility model, by setting the sensor body 100, the signal processing circuit installed inside the shell 110 is connected to the laser detection element, and the collected methane concentration is processed and judged, and converted into an actual value. The signal processing circuit installed inside the shell 110 is connected to the wireless communication unit to wirelessly transmit the methane concentration value in real time. This makes the structure of the entire sensor body 100 simple, the measurement is accurate, the response time is fast, the transmission distance is long, and the anti-interference ability is strong, which is particularly suitable for complex coal mine production sites.

[0032] See also Figures 1 to 4A fixing hole 221 is respectively formed at the four corners, the middle of the front side and the middle of the rear side of the installation frame 220, and a hand screw 210 is threadedly connected in each fixing hole 221.

[0033] The width and length of the installation frame 220 match the width and length of the lower end of the shell 110 , and the laser methane detection element 170 and the sound and light alarm 180 are both placed inside the metal mesh frame 230 .

[0034] The second protection component 300 also includes a fixing member 310 , the right end of which is fixed to the housing 110 by surface welding, and a circular ring is welded on the left side of the fixing member 310 , and the lower side of the antenna 120 passes through the circular ring from bottom to top.

[0035] An external thread sleeve is integrally provided on the inner side of the upper end of the circular ring, and the external thread sleeve is threadedly connected to the internal thread tube 321 . The upper end of the antenna 120 is placed inside the second metal mesh frame 322 .

[0036] As the second embodiment of the utility model, based on the above-mentioned first embodiment, in actual use, when the sensor body 100 is in an underground working environment, the user can install the metal mesh frame 1 230 at the lower end of the shell 110 through the installation frame 220 and the hand screw 210, cover the laser methane detection element 170 and the sound and light alarm 180, and then thread the metal mesh frame 2 322 on the fixing member 310 through the internal threaded tube 321, and put the upper end of the antenna 120 inside the metal mesh frame 2 322 to protect the assembly. The protective components 1 200 and 2 300 cover and protect the antenna 120, the laser methane detection element 170 and the sound and light alarm 180 exposed to the outside of the sensor body 100, so as to prevent external objects from easily hitting the antenna 120, the laser methane detection element 170 and the sound and light alarm 180. At the same time, the mesh structure of the protective components 1 200 and 2 300 will not affect the normal operation of the antenna 120, the laser methane detection element 170 and the sound and light alarm 180, thereby greatly improving the safety of the sensor body 100.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A long-distance communication mine-use wireless laser methane sensor, comprising: A sensor body (100), a protective component one (200) and a protective component two (300), wherein the protective component one (200) is movably mounted on the lower end of the sensor body (100), and the protective component two (300) is mounted on the left side of the sensor body (100); The sensor body (100) comprises a housing (110), an antenna (120), and a handle (130); the antenna (120) is installed on the left side of the housing (110), an aviation socket (140) is installed on the right side of the housing (110), and the handle (130) is welded on the upper side of the housing (110); The protective component one (200) includes a mounting frame (220) and a metal mesh frame one (230), the metal mesh frame one (230) being welded to the lower side of the mounting frame (220), and the protective component two (300) includes an internal threaded tube (321) and a metal mesh frame two (322), the metal mesh frame two (322) being welded to the upper end of the internal threaded tube (321).

2. A long-distance communication wireless laser methane sensor for mining as claimed in claim 1, characterized in that: A display screen (150) is installed on the upper side of the front surface of the shell (110), a power button (190) is installed on the lower left side of the front surface of the shell (110), and a buzzer (160) is installed on the lower right side of the front surface of the shell (110).

3. A long-distance communication wireless laser methane sensor for mining as claimed in claim 1, characterized in that: A laser methane detection element (170) is installed on the right side of the lower end of the shell (110), and an audible and visual alarm (180) is installed on the left side of the lower end of the shell (110).

4. A long-distance communication wireless laser methane sensor for mining as claimed in claim 3, characterized in that: The installation frame (220) is provided with a fixing hole (221) at each of the four corners, the middle of the front side, and the middle of the rear side. A hand screw (210) is threadedly connected in each of the fixing holes (221).

5. A long-distance communication wireless laser methane sensor for mining as claimed in claim 4, characterized in that: The width and length of the installation frame (220) are matched with the width and length of the lower end of the shell (110), and the laser methane detection element (170) and the sound and light alarm (180) are both placed inside the metal mesh frame (230).

6. A long-distance communication wireless laser methane sensor for mining as claimed in claim 1, characterized in that: The second protection component (300) further comprises a fixing member (310), the right end of which is fixed to the housing (110) by surface welding, and a circular ring is welded on the left side of the fixing member (310), and the lower side of the antenna (120) passes through the circular ring from bottom to top.

7. A long-distance communication wireless laser methane sensor for mining as claimed in claim 6, characterized in that: An external thread sleeve is integrally provided on the inner side of the upper end of the circular ring, and the external thread sleeve is threadedly connected to the internal thread cylinder (321). The upper end of the antenna (120) is placed inside the second metal mesh frame (322).

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