Novel integrated vehicle-mounted methane power-off instrument host

Abstract

The utility model relates to vehicle-mounted methane power-off instrument using equipment, in particular to a novel integrated vehicle-mounted methane power-off instrument host. Comprising a host shell, and a display device and an explosion-proof knob switch are fixed on the host shell; the bottom plate is arranged in the host shell; the machine core group is fixed on the bottom plate after being encapsulated; the output intrinsically safe power supply module is independently fixed on the bottom plate; the battery pack core is fixed on the bottom plate after being encapsulated; the movement group is used for detecting the methane concentration of detected gas and displaying the methane concentration on the display device, the output intrinsically safe power supply module supplies power to the movement group, and the battery pack core is controlled by the explosion-proof knob switch and supplies standby power to the movement group.

Description

Technical Field

[0001] The utility model relates to equipment for using a vehicle-mounted methane cut-off instrument, in particular to a new integrated vehicle-mounted methane cut-off instrument main unit. Background Technique

[0002] The vehicle-mounted laser methane cut-off instrument in the coal mine underground is a safety device specially designed for the underground environment of coal mines. It uses laser technology to accurately detect the concentration of methane gas, and automatically cuts off the power supply when the concentration exceeds the preset safety threshold, so as to prevent explosion accidents caused by methane accumulation. The cut-off instrument is usually installed on underground operating vehicles or other mobile devices, and can monitor the methane concentration in the surrounding environment in real time. Once the methane concentration reaches a dangerous level, the device will immediately give an alarm and cut off the power supply, thus protecting the safety of miners and equipment. Summary of the Invention

[0003] In order to solve the problem that the current main unit of the vehicle-mounted methane cut-off instrument in the mine does not have a backup power supply to provide power support when the external power supply of the system is cut off without reason, and ensure that the cut-off instrument can continue to work at a critical moment, the utility model provides a new integrated vehicle-mounted methane cut-off instrument main unit.

[0004] The utility model adopts the following technical solutions: a new integrated vehicle-mounted methane cut-off instrument main unit, including:

[0005] A main unit housing, on which a display device and an explosion-proof knob switch are fixed;

[0006] A bottom plate, which is arranged inside the main unit housing;

[0007] A movement group, which is fixed on the bottom plate after potting;

[0008] An output intrinsically safe power module, which is independently fixed on the bottom plate;

[0009] A battery pack core, which is fixed on the bottom plate after potting;

[0010] The movement group is used to detect the methane concentration of the measured gas and display it on the display device. The output intrinsically safe power module supplies power to the movement group, and the battery pack core is controlled by the explosion-proof knob switch and supplies backup power to the movement group.

[0011] In some embodiments, the battery pack core includes a plurality of serially connected batteries, and the charge and discharge plate and the batteries are potted in a battery box with epoxy resin.

[0012] In some embodiments, the explosion-proof knob switch includes:

[0013] A switch body, which is installed in a circular hole preset on the main unit housing;

[0014] A switch knob, which is integrated with the switch body. The switch knob extends outside the round hole, and a fastening screw is installed on the switch knob for limiting.

[0015] A switch mounting base, which is fixed on the main machine housing. The switch knob passes through the switch mounting base, and a limiting groove is provided on the switch mounting base. The end of the fastening screw for limiting extends into the limiting groove.

[0016] In some embodiments, the main machine housing includes a cavity for accommodating various devices and a cover plate provided on the cavity.

[0017] In some embodiments, the battery uses a nickel-metal hydride battery with a battery capacity of 800 mA.

[0018] In some embodiments, the external dimensions of the main machine housing are 292×240 mm×141 mm.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] 1. Continuous power supply: When the main power supply fails to supply power due to various reasons (such as line faults, power outages, etc.), the backup power supply can quickly switch and provide stable power for the power-off instrument, ensuring that it can continue to work normally.

[0021] 2. Ensure safety: Due to the complex environment in coal mines, the presence of flammable and explosive gases such as methane makes safety crucial. The backup power supply can ensure that the power-off instrument will not fail due to power problems at critical moments, so that the power can be cut off in time to prevent explosion accidents caused by too high methane concentration.

[0022] 3. Long-time operation: The backup power supply usually has a long battery life and can support the power-off instrument to work for a period of time after the main power supply fails, providing enough time for maintenance personnel to repair the main power supply or replace the backup power supply.

[0023] 4. Charge and discharge protection function: An charge and discharge protection circuit is adopted to effectively protect the backup battery pack. Description of the Drawings

[0024] Figure 1 is the structural diagram of the present utility model;

[0025] Figure 2 is the battery pack diagram of the present utility model;

[0026] Figure 3 is the knob switch diagram I of the present utility model;

[0027] Figure 4 is the knob switch diagram II of the present utility model; Detailed implementation mode

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] A novel integrated vehicle-mounted methane cut-off instrument host includes: a host shell, on which a display device 7 and an explosion-proof knob switch 1 are fixed; a bottom plate 6, which is arranged inside the host shell; a movement group 2, which is potted and fixed on the bottom plate 6; an output intrinsically safe power module 3, which is independently fixed on the bottom plate 6; a battery pack core 4, which is potted and fixed on the bottom plate 6 after potting. The movement group 2 is used to detect the methane concentration of the measured gas and display it on the display device 7. The output intrinsically safe power module 3 supplies power to the movement group 2, and the battery pack core 4 is controlled by an explosion-proof knob switch 2 and supplies backup power to the movement group 2.

[0030] The battery pack core 4 includes a plurality of serially connected batteries 4.2, and the charge and discharge plate and the battery are potted in the battery box with epoxy resin. The charge and discharge plate and the battery are potted in the battery box with epoxy resin glue to ensure that it is not affected by vibration and improve the service performance.

[0031] The explosion-proof knob switch 2 includes:

[0032] A switch body 2.1, which is installed in a circular hole preset on the host shell;

[0033] A switch knob 2.2, which is integrated with the switch body 2.1. The switch knob 2.2 extends outside the circular hole, and a set screw limit 2.5 is installed on the switch knob 2.2;

[0034] A switch mounting seat 2.4, which is fixed on the host shell. The switch knob 2.2 passes through the switch mounting seat 2.4. A limit groove is provided on the switch mounting seat 2.4, and the end of the set screw limit 2.5 extends into the limit groove.

[0035] An explosion-proof knob switch is added to control the power supply of the battery. When the external power supply of the cut-off instrument host is powered off, press the knob switch to put the backup battery into use to ensure the safety and reliability of the system.

[0036] The host shell includes a cavity 5.2 for accommodating each device and a cover plate 5.1 arranged on the cavity 5.2.

[0037] The battery 4.2 uses a nickel-metal hydride battery with a battery capacity of 800 mA.

[0038] The outer dimensions of the main unit housing are 292×240 mm×141 mm.

[0039] After the system is powered on, the pulse signal of the laser methane sensor is sent to the methane cut-off instrument, and digital processing is performed by the single-chip microcomputer in the movement group to drive the digital display to directly display the methane concentration of the measured gas. In fresh air, the sensor bridge circuit is in a balanced state. After one minute, the main unit of the cut-off instrument supplies power to the relay, the relay contact closes, and the controlled device operates. When the methane concentration reaches or exceeds the alarm value, the main unit of the cut-off instrument immediately controls the audible and visual alarm to emit a red audible and visual alarm. When the methane concentration reaches or exceeds the cut-off value, the main unit of the cut-off instrument immediately controls the optical cut-off alarm to emit a red flash, and at the same time immediately stops supplying power to the relay, the relay contact disconnects, and the controlled device stops operating. Controlled by the single-chip microcomputer, after one minute of power cut, if the methane concentration is still at or above the unlocking value, the single-chip microcomputer controls continuous power cut. If the methane concentration is below the unlocking value, the single-chip microcomputer will immediately stop the alarm of the optical cut-off alarm and at the same time immediately resume power supply to the relay, the relay contact closes, and the controlled device resumes operation.

[0040] It is applicable to coal mines in places with the risk of gas (methane) and coal dust explosion. It is connected with the GJG100J laser methane sensor for coal mines to continuously monitor the gas concentration in the air flow of the controlled area. When the gas concentration reaches or exceeds the alarm value, the sensor immediately emits audible and visual alarm signals. When the gas concentration reaches or exceeds the cut-off value, the cut-off instrument immediately cuts off the power (cuts off the power supply of the controlled device) to ensure production safety. When the gas concentration drops below the unlocking value, the cut-off instrument automatically unlocks (restores the power supply of the controlled device) and continues to monitor.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new type of integrated vehicle-mounted methane power-off instrument host, characterized in that: include: A host housing, on which a display device (7) and an explosion-proof knob switch (1) are fixed; A bottom plate (6), the bottom plate (6) being arranged inside the main body housing; A movement assembly (2), wherein the movement assembly (2) is fixed on the bottom plate (6) after being cast; An output intrinsically safe power supply module (3), wherein the output intrinsically safe power supply module (3) is independently fixed on the base plate (6); A battery pack core (4), wherein the battery pack core (4) is fixed on a bottom plate (6) after being cast-in-place; The movement group (2) is used to detect the methane concentration of the gas being measured and display it on a display device (7); the output intrinsically safe power supply module (3) supplies power to the movement group (2); and the battery group core (4) is controlled by an explosion-proof knob switch (1) and provides standby power to the movement group (2).

2. The novel integrated vehicle-mounted methane power-off instrument host according to claim 1 is characterized in that: The battery pack core (4) comprises a plurality of batteries (4.2) connected in series, and the charging and discharging plates and the batteries are sealed in a battery box using epoxy resin.

3. The novel integrated vehicle-mounted methane power-off instrument host according to claim 1 is characterized in that: The explosion-proof knob switch (1) comprises: A switch body (2.1), the switch body (2.1) being installed in a circular hole pre-set on a housing of the host; A switch knob (2.2), the switch knob (2.2) and the switch body (2.1) are integrated, the switch knob (2.2) extends outside the circular hole, and a fastening screw limiter (2.5) is installed on the switch knob (2.2); A switch mounting seat (2.4) is fixed on the main housing, the switch knob (2.2) passes through the switch mounting seat (2.4), a limit slot is provided on the switch mounting seat (2.4), and the end of the fastening screw limit (2.5) extends into the limit slot.

4. The novel integrated vehicle-mounted methane power-off instrument host according to claim 1 is characterized in that: The mainframe housing comprises a cavity (5.2) for accommodating various devices and a cover plate (5.1) arranged on the cavity (5.2).

5. The novel integrated vehicle-mounted methane power-off instrument host according to claim 2 is characterized in that: The battery (4.2) is a nickel-hydrogen battery with a battery capacity of 800mA.

6. The novel integrated vehicle-mounted methane power-off instrument host according to claim 2 is characterized in that: The mainframe housing has an overall dimension of 292 mm × 240 mm × 141 mm.

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