CN219281792U - Gas concentration monitoring and early warning device for coal mine gas extraction - Google Patents

Gas concentration monitoring and early warning device for coal mine gas extraction Download PDF

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Publication number
CN219281792U
CN219281792U CN202320468812.3U CN202320468812U CN219281792U CN 219281792 U CN219281792 U CN 219281792U CN 202320468812 U CN202320468812 U CN 202320468812U CN 219281792 U CN219281792 U CN 219281792U
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gas concentration
housing
early warning
wall
rod
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CN202320468812.3U
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张佳乐
王海梅
周红星
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Jiangsu Dongke Safety Research Institute Co ltd
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Jiangsu Dongke Safety Research Institute Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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Abstract

The utility model discloses a gas concentration monitoring and early warning device for coal mine gas extraction, which comprises a hanging ring and a gas concentration sensor penetrating through the hanging ring, wherein two sides of the hanging ring are fixedly provided with a supporting frame together, the top of the supporting frame is fixedly provided with a connecting block, the inside of the connecting block is rotatably penetrated with a supporting rod, two ends of a rod wall of the supporting rod are rotatably sleeved with a housing, the top of the housing is fixedly provided with a mounting plate, the inside of the mounting plate is penetrated with a plurality of mounting bolts, a reciprocating swing monitoring mechanism is arranged between the inside of the housing and the supporting rod, and the lower ends of two sides of the inner wall of the supporting frame are respectively provided with an elastic limiting mechanism. According to the utility model, the gas concentration sensor is hung at the upper end of the inner wall of the mine, so that the moving operation of equipment in the mine is not influenced, and meanwhile, the gas at different positions on the same cross section can be rapidly monitored.

Description

Gas concentration monitoring and early warning device for coal mine gas extraction
Technical Field
The utility model belongs to the technical field of coal mine gas extraction, and particularly relates to a gas concentration monitoring and early warning device for coal mine gas extraction.
Background
After the gas content in the mine exceeds the standard, the gas content in the mine can cause harm to workers in the mine, so that the gas concentration in the mine is required to be monitored and early-warned at any time.
Through retrieving, patent number CN114924036A discloses a gas concentration monitoring early warning device for colliery gas drainage, and the device is through setting up the shutoff sleeve in the intake pipe for when the motor rotates, can adjust the position that air inlet and intercommunicating pore coincide, and then detect the air of different positions in the mine tunnel, increase this device's detection range, solved that original device monitoring range is less, and be inconvenient for adjusting the position of monitoring, lead to its relatively poor problem of practicality.
However, during monitoring of the gas concentration, in order to improve the monitoring precision and effect, a monitoring device needs to be arranged in the mine, and if the monitoring device is arranged in the mine, the movement of equipment in the mine can be influenced, meanwhile, the walking of staff is hindered, and the working stability of the mine is influenced.
Disclosure of Invention
The utility model is provided in view of the problems of the existing gas concentration monitoring and early warning device for coal mine gas extraction.
Therefore, the utility model aims to provide a gas concentration monitoring and early warning device for coal mine gas extraction, which solves the problems that if gas monitoring equipment is arranged on the ground in a mine, the movement of the equipment in the mine can be influenced, meanwhile, the walking of staff is blocked, and the working stability of the mine is influenced.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a gas concentration monitoring early warning device for colliery gas drainage, includes the link and wears to locate the inside gas concentration sensor of link, places the use through the link to gas concentration sensor to carry out the quick monitoring early warning to gas concentration, the both sides of link are fixed jointly and are equipped with the support frame, the fixed connecting block that is equipped with in top of support frame, the inside rotation of connecting block wears to be equipped with the bracing piece, the pole wall both ends of bracing piece rotate jointly and overlap and be equipped with the housing, the fixed mounting panel that is equipped with in top of housing, a plurality of mounting bolts are worn to be equipped with in the inside of mounting panel, and the mounting bolt can be with the whole installation in mine inside top of device, does not influence the removal operation of mine subaerial equipment;
a reciprocating swing monitoring mechanism is arranged between the inside of the housing and the supporting rod, so that the gas concentration sensor can swing to monitor more gas, and the monitoring precision is improved;
elastic limiting mechanisms are arranged at the lower ends of two sides of the inner wall of the supporting frame and limit the position of the gas concentration sensor, so that the stability of the gas concentration sensor during operation is ensured.
Preferably, the reciprocating swing monitoring mechanism comprises a reciprocating screw rod, the reciprocating screw rod is rotationally arranged in the housing, a sliding plate is arranged on the screw sleeve of the rod wall, the top of the sliding plate is connected with the bottom of the mounting plate in a contact manner, a rack is fixedly arranged at the bottom of the sliding plate, a first round gear is meshed with the rack, the first round gear is fixedly sleeved on the outer side of the supporting rod, a driving mechanism for driving the reciprocating screw rod to rotate is arranged on the rod wall of the reciprocating screw rod, and the supporting frame can drive the gas concentration sensor to reciprocate, so that the gas concentration at a plurality of positions on the same plane is accurately monitored.
Preferably, the driving mechanism comprises a motor, the motor is fixedly connected with the inner wall of the housing, a second circular gear is fixedly sleeved at the output end, a third circular gear is meshed with the second circular gear, and the third circular gear is fixedly sleeved at the outer side of the reciprocating screw rod and can drive the screw rod to stably rotate.
Preferably, the elastic limiting mechanism comprises a cover plate, a connecting plate is fixedly arranged on the inner wall of the supporting frame, a fixing rod is fixedly arranged in the connecting plate in a penetrating mode, the cover plate is rotatably sleeved on the outer side of the fixing rod, a torsion spring is sleeved on the rod wall of the fixing rod, two ends of the torsion spring are fixedly connected with the fixing rod and the cover plate respectively, and the gas concentration sensor in the swinging process is limited and abutted.
Furthermore, the lower ends of the two sides of the housing are provided with rotating grooves matched with the supporting frame to swing, so that the supporting frame can swing stably.
Preferably, the mounting bolts adopt expansion bolts, so that the connection stability between the device and the mine is ensured.
Compared with the prior art, the utility model provides a gas concentration monitoring and early warning device for coal mine gas extraction, which has the following beneficial effects:
1. this a gas concentration monitoring early warning device for colliery gas drainage through the cooperation of mounting panel and positioning bolt, can hang the gas concentration sensor and put the inside top of installing at the mine to under actuating mechanism's drive, make reciprocal lead screw drive slide reciprocal slip, under the reciprocal meshing of rack and first round gear, the support frame carries out reciprocal swing under the drive of connecting block, thereby makes the gas concentration sensor monitor the gas concentration of many positions on the coplanar in the swing process, improves monitoring early warning effect.
2. This a gas concentration monitoring early warning device for colliery gas drainage extrudes gas concentration sensor through torsional spring cooperation apron, carries out spacingly to the gas concentration sensor in the swing process, avoids the sensor to take place to drop as far as possible.
Drawings
FIG. 1 is a schematic diagram of a gas concentration monitoring and early warning device for coal mine gas extraction;
FIG. 2 is an enlarged view of the portion A of FIG. 1;
fig. 3 is a schematic structural view of the hanging ring in fig. 1.
In the figure: the gas concentration sensor comprises a hanging ring 1, a gas concentration sensor 2, a supporting frame 3, a connecting block 4, a supporting rod 5, a housing 6, a mounting plate 7, a mounting bolt 8, a reciprocating screw rod 9, a sliding plate 10, a rack 11, a first round gear 12, a motor 13, a second round gear 14, a third round gear 15, a cover plate 16, a connecting plate 17, a fixing rod 18 and a torsion spring 19.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
The embodiment of the utility model discloses a gas concentration monitoring and early warning device for coal mine gas extraction.
Example 1
The utility model provides a gas concentration monitoring and early warning device for coal mine gas extraction, which is shown in figures 1-3, and comprises a hanging ring 1 and a gas concentration sensor 2 penetrating through the hanging ring 1, wherein two sides of the hanging ring 1 are fixedly provided with a supporting frame 3 together, the top of the supporting frame 3 is fixedly provided with a connecting block 4, the inside of the connecting block 4 is rotatably provided with a supporting rod 5 in a penetrating manner, two ends of the rod wall of the supporting rod 5 are rotatably sleeved with a housing 6 together, the top of the housing 6 is fixedly provided with a mounting plate 7, the inside of the mounting plate 7 is provided with a plurality of mounting bolts 8 in a penetrating manner, and the mounting bolts 8 adopt expansion bolts.
Before using gas concentration sensor 2, place it in the inside location of link 1, later be connected mounting panel 7 and the inside top of mine through mounting bolt 8, confirm the position of mounting panel 7, housing 6 and gas concentration sensor 2, later put through gas concentration sensor 2 and external power, make it can stable work to accomplish the monitoring to the inside gas concentration of mine.
Example 2
Embodiment 2 in order to monitor the gas concentration of the multiple positions on the same plane on the basis of embodiment 1, as shown in fig. 1, a reciprocating swing monitoring mechanism is arranged between the inside of the housing 6 and the supporting rod 5, the reciprocating swing monitoring mechanism comprises a reciprocating screw rod 9, the reciprocating screw rod 9 is rotationally arranged in the housing 6, a sliding plate 10 is sleeved on the screw thread of the rod wall, the top of the sliding plate 10 is in contact connection with the bottom of the mounting plate 7, a rack 11 is fixedly arranged at the bottom, a first circular gear 12 is meshed with the rack 11, and the first circular gear 12 is fixedly sleeved on the outer side of the supporting rod 5.
When the position of the gas concentration sensor 2 is determined and the gas concentration sensor can be electrified to work, the sliding plate 10 drives the rack 11 to reciprocate under the limit of the mounting plate 7 through the rotation of the reciprocating screw rod 9, and the support rod 5 can drive the connecting block 4 and the support frame 3 to reciprocate through the reciprocating engagement of the rack 11 and the first round gear 12, so that the gas concentration sensor 2 swings in the same plane and carries out gas concentration monitoring at a plurality of positions, and the gas concentration monitoring precision is improved.
In order to enable the reciprocating screw rod 9 to stably rotate, as shown in fig. 1, a driving mechanism for driving the reciprocating screw rod 9 to rotate is arranged on the rod wall of the reciprocating screw rod 9, the driving mechanism comprises a motor 13, the motor 13 is fixedly connected with the inner wall of the housing 6, a second circular gear 14 is fixedly sleeved at the output end, a third circular gear 15 is meshed with the second circular gear 14, and the third circular gear 15 is fixedly sleeved on the outer side of the reciprocating screw rod 9.
The motor 13 is connected with an external power supply, so that an output shaft of the motor 13 starts to rotate and drives the second circular gear 14 to rotate, and the reciprocating screw rod 9 can synchronously rotate with the output shaft of the motor 13 under the engagement of the second circular gear 14 and the third circular gear 15.
Example 3
Embodiment 3 in order to avoid the gas concentration sensor 2 from shaking and accidentally falling during the swinging process as much as possible on the basis of embodiment 1-2, as shown in fig. 1-2, the lower ends of two sides of the inner wall of the support frame 3 are respectively provided with an elastic limiting mechanism, the elastic limiting mechanism comprises a cover plate 16, the inner wall of the support frame 3 is fixedly provided with a connecting plate 17, a fixing rod 18 is fixedly penetrated in the connecting plate 17, the cover plate 16 is rotatably sleeved on the outer side of the fixing rod 18, a torsion spring 19 is sleeved on the rod wall of the fixing rod 18, and two ends of the torsion spring 19 are respectively fixedly connected with the fixing rod 18 and the cover plate 16.
When the gas concentration sensor 2 is placed in the hanging ring 1, the cover plate 16 extrudes and positions the gas concentration sensor 2 through the torsion force of the torsion spring 19, so that the gas concentration sensor 2 is prevented from shaking and falling in the swinging process of the following support frame 3 as much as possible, and the use stability of the gas concentration sensor 2 is improved.
Finally, in order to ensure that the support frame 3 is not blocked in the swinging process, as shown in fig. 1, the lower ends of two sides of the housing 6 are provided with rotating grooves matched with the support frame 3 to swing.
The support frame 3 can enter the rotating groove in the rotating process, so that the swinging of the support frame 3 is not influenced by the obstruction of the housing 6.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a gas concentration monitoring and early warning device for coal mine gas extraction, includes link (1) and wears to locate gas concentration sensor (2) inside link (1), a serial communication port, the both sides of link (1) are fixed jointly and are equipped with support frame (3), the fixed connecting block (4) that is equipped with in top of support frame (3), the inside rotation of connecting block (4) is worn to be equipped with bracing piece (5), the pole wall both ends of bracing piece (5) rotate jointly and overlap and be equipped with housing (6), the fixed mounting panel (7) that is equipped with in top of housing (6), a plurality of mounting bolts (8) are worn to be equipped with in the inside of mounting panel (7);
a reciprocating swing monitoring mechanism is arranged between the inside of the housing (6) and the supporting rod (5);
elastic limiting mechanisms are arranged at the lower ends of two sides of the inner wall of the supporting frame (3).
2. The gas concentration monitoring and early warning device for coal mine gas extraction according to claim 1, wherein the reciprocating swing monitoring mechanism comprises a reciprocating screw rod (9), the reciprocating screw rod (9) is rotationally arranged in the housing (6), a sliding plate (10) is sleeved on the wall of the rod in a threaded manner, the top of the sliding plate (10) is in contact connection with the bottom of the mounting plate (7), a rack (11) is fixedly arranged at the bottom, a first circular gear (12) is meshed with the rack (11), the first circular gear (12) is fixedly sleeved on the outer side of the supporting rod (5), and a driving mechanism for driving the reciprocating screw rod (9) to rotate is arranged on the wall of the reciprocating screw rod (9).
3. The gas concentration monitoring and early warning device for coal mine gas extraction according to claim 2, wherein the driving mechanism comprises a motor (13), the motor (13) is fixedly connected with the inner wall of the housing (6), a second circular gear (14) is fixedly sleeved at the output end, a third circular gear (15) is meshed with the second circular gear (14), and the third circular gear (15) is fixedly sleeved on the outer side of the reciprocating screw rod (9).
4. The gas concentration monitoring and early warning device for coal mine gas extraction according to claim 1, wherein the elastic limiting mechanism comprises a cover plate (16), a connecting plate (17) is fixedly arranged on the inner wall of the supporting frame (3), a fixing rod (18) is fixedly arranged in the connecting plate (17) in a penetrating mode, the cover plate (16) is rotatably sleeved on the outer side of the fixing rod (18), a torsion spring (19) is sleeved on the rod wall of the fixing rod (18), and two ends of the torsion spring (19) are fixedly connected with the fixing rod (18) and the cover plate (16) respectively.
5. The gas concentration monitoring and early warning device for coal mine gas extraction according to claim 1, wherein the lower ends of two sides of the housing (6) are provided with rotating grooves matched with the swinging of the supporting frame (3).
6. The gas concentration monitoring and early warning device for coal mine gas extraction according to claim 1, wherein the mounting bolts (8) are expansion bolts.
CN202320468812.3U 2023-03-13 2023-03-13 Gas concentration monitoring and early warning device for coal mine gas extraction Active CN219281792U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320468812.3U CN219281792U (en) 2023-03-13 2023-03-13 Gas concentration monitoring and early warning device for coal mine gas extraction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320468812.3U CN219281792U (en) 2023-03-13 2023-03-13 Gas concentration monitoring and early warning device for coal mine gas extraction

Publications (1)

Publication Number Publication Date
CN219281792U true CN219281792U (en) 2023-06-30

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ID=86928057

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320468812.3U Active CN219281792U (en) 2023-03-13 2023-03-13 Gas concentration monitoring and early warning device for coal mine gas extraction

Country Status (1)

Country Link
CN (1) CN219281792U (en)

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