Wireless measuring instrument for coal seam gas content in mines

Abstract

The present invention discloses a wireless measuring instrument for coal seam gas content for mining, which relates to the field of gas detection instruments, including a casing, a flow detection tube and a temperature sensor installed on the top of the casing, a group of push plates are slidably arranged on the outer wall of the casing, an inflatable bag is installed between the inner wall of the push plate and the outer wall of the casing, a spring is connected between the outer wall of the inflatable bag and the push plate, and a positioning shell is connected to the air outlet of the inflatable bag. The present invention uses the buffering of the inflatable bag and the spring to enable the push plate to buffer a part of the impact force received by the side of the casing, and the protective air bag is inflated and opened when the instrument falls, so as to protect the instrument as a whole, effectively preventing the instrument from falling directly and being damaged due to excessive impact force, and the wireless measuring instrument can also press the push plate when it is not in use, so that the push plate squeezes the inflatable bag, and the gas generated by the squeezing is filled into the positioning shell to clean the dust particles inside the positioning shell.

Description

Technical Field

[0001] The invention relates to the field of gas detection instruments, in particular to a wireless measuring instrument for coal seam gas content used in mines. Background Art

[0002] The wireless measuring instrument for coal seam gas content in mines is a portable instrument for mines with sensitive components, embedded microprocessors and multi-functional peripheral circuits as its core. It can accurately measure the gas content in coal seams, and provide an accurate and reliable basis for mine excavation deployment, research on coal seam gas occurrence laws, and underground safety management in coal mines. At the same time, the measuring instrument also has many functions such as display of remaining battery power of the whole machine, real-time data uploading, real-time data storage and query, etc. The measuring instrument can send real-time and historical data via Bluetooth.

[0003] When using the wireless measuring instrument for coal seam gas content in mines, the coal seam is generally sampled first, the coal sample is placed in a sample tank and crushed, and the outlet pipe of the sample tank is connected to the air inlet end of the wireless measuring instrument. The gas generated by the coal sample will overflow into the wireless measuring instrument. At this time, the wireless measuring instrument detects the gas flow rate passing through per unit time, and quickly analyzes and determines the amount of gas desorption in the coal body, thereby obtaining the gas content in the coal seam.

[0004] In actual use, due to the different gas content in different coal seams, inspectors need to go to different locations for testing. Although the wireless measuring instrument has the advantage of being portable and can be carried at any time, the inspectors are in the complex environment under the coal mine, and the wireless measuring instrument may be bumped or even dropped. At this time, the measurement accuracy of the wireless measuring instrument may be reduced or even damaged. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a wireless measuring instrument for coal seam gas content in mines, so as to solve

[0006] Generally, wireless measuring instruments are placed in the complex environment of coal mines and may be bumped or even fall.

[0007] Technical issues.

[0008] To achieve the above object, the present invention provides the following technical solution: a coal seam gas content-free

[0009] The flow meter comprises a casing, a flow detection tube and a temperature sensor installed on the top of the casing, wherein the casing

[0010] The outer wall of the housing is provided with a set of push plates for sliding movement, and a push plate is installed between the inner wall of the push plate and the outer wall of the housing.

[0011] The inflatable bag has a spring connected between the outer wall of the inflatable bag and the push plate, and the outlet end of the inflatable bag is connected to the

[0012] A positioning shell is connected, the side wall of the positioning shell is equipped with an air outlet pipe, and the bottom of the housing is detachably provided

[0013] With protective airbag.

[0014] The present invention is further configured such that the outlet ends of the inflatable bags are all connected to an outlet passage, and one of the inflatable bags is

[0015] One end of the air outlet is connected to a set of exhaust pipes, and the other end of the air outlet is connected to the inner air of the positioning shell.

[0016] The cavities are interconnected, and a rotating plate is provided on the top of the cavity for rotation via a rotating shaft.

[0017] The present invention is further configured that the inner side wall of the exhaust pipe is slidably provided with a slide plate, the slide plate

[0018] The side wall of the connecting plate is rotatably connected to the connecting plate through the rotating shaft, and the side wall of the connecting plate is rotatably connected to the connecting plate through the rotating shaft.

[0019] An air guide plate, one end of which is rotatably connected to the inner wall of the air inlet of the positioning shell through a rotating shaft.

[0020] The present invention is further configured that the air inlet end of the inflatable bag is provided with a plurality of air inlet pipes.

[0021] One end of the air pipe penetrates the side wall of the push plate and is connected with the outside air.

[0022] The present invention is further configured that the air inlet end and the air outlet end of the inflatable bag are respectively equipped with a one-way inlet and outlet.

[0023] Air valve and one-way air outlet valve.

[0024] The present invention is further configured that the slide plate, the connecting plate, the air guide plate and the rotating plate are installed with

[0025] Torsion springs are installed inside the rotating shafts.

[0026] The present invention is further configured such that a level assembly is installed on the inner side wall of the housing.

[0027] The present invention is further configured that the inner bottom wall of the housing is provided with a mounting shell, and the inner bottom wall of the housing is provided with a mounting shell.

[0028] The bottom wall is located in the middle of the installation shell and is equipped with a battery

[0029] In summary, the present invention mainly has the following beneficial effects: the present invention uses the inflatable bag and the spring to

[0030] The push plate can cushion part of the impact force on the side of the casing, thereby protecting the airbag.

[0031] When the instrument falls, it will inflate and open to protect the entire instrument, effectively preventing the instrument from falling directly.

[0032] The impact force is too great to cause damage, and the wireless measuring instrument is not in use.

[0033] The push plate can be pressed to squeeze the airbag, and the gas generated by the squeezing is filled into the positioning shell.

[0034] Clean the dust particles inside the positioning shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a schematic diagram of the three-dimensional structure of the present invention;

[0036] FIG2 is a schematic diagram of the protective airbag of the present invention in an open state;

[0037] FIG3 is a schematic diagram of the connection state between the airbag and the housing of the present invention;

[0038] FIG4 is a cross-sectional view of the connection state of the inflatable bag and the positioning shell of the present invention;

[0039] FIG5 is a schematic diagram of the connection state of the inflatable bag and the positioning shell of the present invention;

[0040] FIG6 is a cross-sectional view of the internal structure of the housing of the present invention;

[0041] FIG. 7 is an enlarged view of the structure at point A in FIG. 5 of the present invention.

[0042] In the figure: 1, housing; 2, flow detection tube; 3, temperature sensor; 4, push plate; 5, inflatable bag;

[0043] 6. Inlet pipe; 7. Outlet duct; 8. Exhaust pipe; 9. Slide plate; 10. Connecting plate; 11. Air guide plate;

[0044] 12. Rotating plate; 13. Positioning shell; 14. Air outlet pipe; 15. Spring; 16. Battery; 17. Installation

[0045] Shell; 18. Level assembly; 19. Protective airbag. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0047] The embodiments described below with reference to the accompanying drawings are exemplary and are only for explanation purposes.

[0048] The present invention is explained here, but it should not be understood as limiting the present invention.

[0049] The following describes an embodiment of the present invention based on its overall structure.

[0050] A wireless measuring instrument for coal seam gas content in a mine, as shown in FIG1 to FIG7, comprises a housing 1 and an installation

[0051] The flow detection tube 2 and the temperature sensor 3 are installed on the top of the housing 1. The flow detection tube 2 is installed inside

[0052] The gas mass flow meter model CAFS3000 measures the gas content in the flow detection tube 2.

[0053] The temperature sensor 3 detects the ambient temperature and feeds the detection result back to the processor for

[0054] Line data processing.

[0055] In order to reduce the impact of the wireless measuring instrument being knocked and dropped in the complex environment of the coal mine,

[0056] The outer wall of the housing 1 is provided with a set of push plates 4 for sliding movement, and the inner wall of the push plates 4 and the outer wall of the housing 1 are in contact with each other.

[0057] An inflatable bag 5 is installed between the outer wall of the inflatable bag 5 and the push plate 4, and a spring 15 is connected between the outer wall of the inflatable bag 5 and the push plate 4.

[0058] When the side of the vehicle is hit, the spring 15 and the airbag 5 can buffer the impact force to a certain extent.

[0059] Compared with direct impact, the buffer structure can, to a certain extent, cushion the electronic components inside the housing 1.

[0060] line protection;

[0061] At the same time, the push plate 4 is "L" shaped and fits the side wall of the housing 1, which can effectively prevent external dust.

[0062] The particles directly enter the interior of the housing 1, causing damage to the components. One end of the push plate 4 is a slope, which can

[0063] When moving back and forth, dust on the surface of the housing 1 is shoveled away.

[0064] The inner wall of the housing 1 is provided with a level assembly 18, and the bottom of the housing 1 is provided with a detachable protective

[0065] The airbag 19 is provided with a mounting shell 17 on the inner bottom wall of the housing 1, and an accelerometer is provided inside the mounting shell 17.

[0066] The sensor is used in conjunction with the level gauge assembly 18 and the acceleration sensor.

[0067] When the housing 1 falls into the hands of the tester, the level assembly 18 detects that the housing 1 loses balance and the acceleration sensor

[0068] The sensor monitors the acceleration data of the device in real time and determines that the device is in a free fall state.

[0069] The air pump inside the housing 17 is started to inflate the protective airbag 19, causing the protective airbag 19 to expand rapidly.

[0070] The housing 1 is used for protection.

[0071] The above structure can buffer the slight impact force that may occur in the daily use of the wireless measuring instrument through the buffer structure.

[0072] The protective airbag 19 is used to cushion the wireless measuring instrument from falling.

[0073] At the same time, the gas enters the positioning shell 13 inside the casing 1 through the detection of the flow detection tube 2.

[0074] The gas is discharged from the air outlet pipe 14 installed on the side wall of the positioning shell 13, but the gas contains some fine dust.

[0075] Particles accumulated inside the positioning shell 13 for a long time may have an adverse effect on the use of the instrument.

[0076] Therefore, the dust particles inside the positioning shell 13 need to be processed.

[0077] The air inlet end of the inflatable bag 5 is provided with a plurality of air inlet pipes 6, one end of which penetrates the side of the push plate 4.

[0078] The wall is connected to the outside air, and the outlet end of the inflatable bag 5 is connected to the outlet duct 7. Press the push plate 4.

[0079] The gas enters the inflatable bag 5 from the air inlet pipe 6 and is discharged from the air outlet 7. One end of the air outlet 7 is connected to

[0080] A set of exhaust pipes 8 are connected, and the gas entering the exhaust pipes 8 directly enters the positioning shell 13,

[0081] The dust particles inside the shell 13 are discharged from the air outlet pipe 14;

[0082] Furthermore, in order to improve the treatment effect of the gas discharged from the exhaust pipe 8 on the dust inside the positioning shell 13,

[0083] If the gas flow direction needs to be guided, a slide plate 9 is slidably provided on the inner wall of the exhaust pipe 8.

[0084] 9 is connected to the inner wall of the exhaust pipe 8 by a slider slot, which is not shown in the figure.

[0085] The side wall of the connecting plate 10 is rotatably connected to the connecting plate 10 through the rotating shaft, and the side wall of the connecting plate 10 is rotatably connected to the connecting plate 10 through the rotating shaft.

[0086] The air guide plate 11 has one end which is rotatably connected to the inner wall of the air inlet of the positioning shell 13 through a rotating shaft.

[0087] After the gas enters the exhaust pipe 8, it directly impacts the surface of the connecting plate 10 and the air guide plate 11. At this time, the slide plate 9

[0088] Move along the slide groove in the opposite direction of the airflow, and the connecting plate 10 and the air guide plate 11 become straight from the bent state.

[0089] The air guide plate 11 opens the air inlet of the positioning shell 13, and the air is guided by the air guide plate 11, carrying dust

[0090] The particles rush directly in the direction of the air outlet pipe 14;

[0091] One end of the other air outlet 7 is connected to the inner cavity of the positioning shell 13, and the top of the cavity is connected to the inner cavity of the positioning shell 13.

[0092] The shaft is provided with a rotating plate 12, and the gas entering the cavity pushes up the rotating plate 12.

[0093] Guided by the rotating plate 12, it moves in an oblique upward direction, and cooperates with the gas guided by the air guide plate 11.

[0094] A clean airflow is formed to directly rush to the air outlet duct 14, effectively removing dust particles inside the positioning shell 13.

[0095] Clean up.

[0096] The inside of the rotating shaft used for the installation of the slide plate 9, the connecting plate 10, the air guide plate 11 and the rotating plate 12 are all

[0097] A torsion spring is installed to facilitate the reset of the various components after the gas stops entering.

[0098] The inlet and outlet ends of the inflatable bag 5 are respectively provided with a one-way inlet valve and a one-way outlet valve.

[0099] The one-way air inlet valve and the one-way air outlet valve keep the inflatable bag 5 in the same direction of gas in and out, which can better

[0100] The dust inside the positioning shell 13 is cleaned.

[0101] The inflatable bag 5 and the spring 15 can not only play a role in buffering the impact force, but also can be used in wireless measurement.

[0102] When the instrument is not in use, the positioning shell 13 is pressed to clean the dust particles inside.

[0103] The mounting shell 17 is internally mounted with components such as a circuit board and an analysis mechanism.

[0104] The inner bottom wall of 1 is located in the middle of the mounting shell 17, and the battery 16 is installed for power supply, which is not the main purpose of this application.

[0105] Innovation point, so no specific description.

[0106] Although embodiments of the present invention have been shown and described, this detailed description is merely illustrative of the present invention.

[0107] The specific features, structures, materials or characteristics described are not intended to limit the invention.

[0108] The above may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A wireless measuring instrument for coal seam gas content for use in mines, comprising a housing (1) and a flow detection tube (2) and a temperature sensor (3) installed on the top of the housing (1), characterized in that: A group of push plates (4) are slidably provided on the outer wall of the casing (1), an inflatable bag (5) is installed between the inner wall of the push plate (4) and the outer wall of the casing (1), a spring (15) is connected between the outer wall of the inflatable bag (5) and the push plate (4), the air outlet end of the inflatable bag (5) is connected to a positioning shell (13), the side wall of the positioning shell (13) is installed with an air outlet pipe (14), the bottom of the casing (1) is detachably provided with a protective air bag (19), the air outlet end of the inflatable bag (5) is connected to an air outlet duct (7), one end of one of the air outlet ducts (7) is connected to a group of exhaust pipes (8), and one end of the other air outlet duct (7) is connected to the positioning shell (13). (13) The internal cavities are interconnected, a rotating plate (12) is rotatably arranged at the top of the cavity via a rotating shaft, a sliding plate (9) is slidably arranged on the inner wall of the exhaust pipe (8), the side wall of the sliding plate (9) is rotatably connected to a connecting plate (10) via a rotating shaft, the side wall of the connecting plate (10) is rotatably connected to an air guide plate (11) via a rotating shaft, one end of the air guide plate (11) is rotatably connected to the inner wall of the air inlet of the positioning shell (13) via a rotating shaft, a torsion spring is installed inside the rotating shaft used when the sliding plate (9), the connecting plate (10), the air guide plate (11) and the rotating plate (12) are installed, and the push plate (4) is "L"-shaped and fits the side wall of the housing (1).

2. A wireless measuring instrument for coal seam gas content for mining according to claim 1, characterized in that: The air inlet end of the inflatable bag (5) is provided with a plurality of air inlet pipes (6), one end of the air inlet pipe (6) penetrates the side wall of the push plate (4) and is connected to the outside air.

3. The wireless measuring instrument for coal seam gas content for mining according to claim 1 is characterized in that: The air inlet end and the air outlet end of the inflatable bag (5) are respectively provided with a one-way air inlet valve and a one-way air outlet valve.

4. The wireless measuring instrument for coal seam gas content for mining according to claim 1 is characterized in that: A level assembly (18) is installed on the inner side wall of the casing (1).

5. The wireless measuring instrument for coal seam gas content for mining according to claim 1 is characterized in that: The inner bottom wall of the casing (1) is provided with a mounting shell (17), and a storage battery (16) is mounted in the middle of the mounting shell (17) on the inner bottom wall of the casing (1).

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