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CN-121995015-A - Ventilation detection device for mine

CN121995015ACN 121995015 ACN121995015 ACN 121995015ACN-121995015-A

Abstract

The invention belongs to the technical field of ventilation detection, and particularly discloses a ventilation detection device for a mine, which comprises a slow release mechanism, an automatic energy storage mechanism and a gas sampling mechanism, wherein the slow release mechanism comprises a bottom shell, an alternate blocking component and a resistance adjusting component, the resistance adjusting component is arranged in the bottom shell, the alternate blocking component is arranged in the resistance adjusting component in a sliding manner, the automatic energy storage mechanism is arranged on the bottom shell, and the gas sampling mechanism is arranged on the automatic energy storage mechanism. In order to overcome the technical contradiction that the friction force cannot be too large or too small, the invention obtains inspiration from the escapement mechanism of the mechanical watch, creatively provides a slow release mechanism, and can realize the slow rotation of the central screw rod by alternately pushing the two sliding rods by the two groups of turntables, thereby realizing the slow release of the elasticity of the coil spring, and further achieving the technical aim of prolonging the gas sampling period.

Inventors

  • Qiao long
  • SUN MING
  • CHANG PENGFEI
  • HOU CHAO
  • ZHENG ZELONG
  • HOU YANBIN
  • XIANG HAOFAN
  • YANG HONGKE
  • JIA ZHIYU
  • ZHANG XINGYU

Assignees

  • 内蒙古北联电高头窑矿业有限责任公司

Dates

Publication Date
20260508
Application Date
20260409

Claims (8)

  1. 1. The ventilation detection device for the mine is characterized by comprising a slow release mechanism (2), an automatic energy storage mechanism (3) and a gas sampling mechanism (4), wherein the slow release mechanism (2) comprises a bottom shell (9), an alternate blocking component (10) and a resistance adjusting component (11), the resistance adjusting component (11) is arranged in the bottom shell (9), the alternate blocking component (10) is arranged in the resistance adjusting component (11) in a sliding mode, the automatic energy storage mechanism (3) is arranged on the bottom shell (9), and the gas sampling mechanism (4) is arranged on the automatic energy storage mechanism (3); The automatic energy storage mechanism (3) comprises an energy storage chamber (24), a central screw rod (25), a turbofan (26) and a coil spring (27), wherein the energy storage chamber (24) is arranged on the bottom shell (9), the central screw rod (25) is rotationally arranged at the central position of the energy storage chamber (24), the turbofan (26) is fixedly connected to the central screw rod (25), one end of the coil spring (27) is fixedly connected to the central screw rod (25), and the other end of the coil spring (27) is fixedly connected to the bottom shell (9).
  2. 2. The ventilation detection device for the mine shafts according to claim 1, wherein the gas sampling mechanism (4) comprises a sampling sleeve (30), the sampling sleeve (30) is arranged on the energy storage chamber (24), a stud bracket (33) is arranged at the bottom of the sampling sleeve (30), a stud bearing (37) is arranged on the stud bracket (33), and the central screw (25) is fixedly connected in an inner ring of the stud bearing (37).
  3. 3. The ventilation detection device for the mine shafts according to claim 2, wherein the alternating blocking component (10) comprises two turntables (12), the turntables (12) are fixedly connected to a central screw rod (25), blocking teeth (20) are uniformly distributed on the turntables (12) in an annular mode, and the blocking teeth (20) on the two turntables (12) are alternately distributed in the axial direction.
  4. 4. The ventilation detection device for the mine is characterized in that the alternating blocking assembly (10) further comprises sliding rods (13), linkage rods (14) and linkage pins (15), the sliding rods (13) are provided with two groups, one ends of the sliding rods (13) are provided with inclined planes matched with blocking teeth (20), the linkage pins (15) are fixedly connected to the bottom shell (9), the linkage rods (14) are rotationally arranged on the linkage pins (15), kidney grooves are symmetrically formed in two ends of the linkage rods (14), round rods at the other ends of the sliding rods (13) are slidably arranged in the kidney grooves, and the two sliding rods (13) alternately stretch under linkage of the linkage rods (14).
  5. 5. The ventilation detection device for the mine shafts according to claim 4, wherein the resistance adjusting assembly (11) comprises a fixed sliding seat (16) and a floating sliding seat (17), the fixed sliding seat (16) is fixedly connected to the inner wall of the bottom shell (9), a lining (21) is arranged on the fixed sliding seat (16), and the sliding rod (13) is clamped and slidingly arranged between the lining (21) and the floating sliding seat (17).
  6. 6. A ventilation detection device for a mine shaft as set forth in claim 5, wherein the fixed slide (16) is provided with a threaded hole (22), the resistance adjusting assembly (11) further comprises an adjusting stud (18) and a resistance spring (19), the adjusting stud (18) is in threaded connection with the threaded hole (22), the floating slide (17) is provided with a flange portion (23), and the resistance spring (19) is arranged between the floating slide (17) and the flange portion (23).
  7. 7. The ventilation detection device for a mine shaft according to claim 6, further comprising a gas storage assembly (1), wherein the gas storage assembly (1) comprises a compressed gas tank (5), an electromagnetic valve (6) and a gas transmission pipeline (7), the electromagnetic valve (6) is arranged on the compressed gas tank (5), a gas supply connector (8) is arranged on the electromagnetic valve (6) in an array mode, a connector part (29) is arranged at one end of the energy storage chamber (24), and the gas transmission pipeline (7) is arranged between the bottom shell (9) and the connector part (29).
  8. 8. The ventilation detection device for the mine shafts according to claim 7, wherein the gas sampling mechanism (4) further comprises a center sleeve (31) and sampling pistons (32), sampling nuts (34) are arranged at the centers of the center sleeve (31), the sampling nuts (34) and the center screw rods (25) are in threaded transmission, the sampling pistons (32) are arranged on the center sleeve (31) in an array mode, flexible sealing skirts (35) in sliding contact with the sampling sleeves (30) are arranged on the outer ring of the sampling pistons (32), and connecting columns (36) used for connection are further arranged between the sampling pistons (32).

Description

Ventilation detection device for mine Technical Field The invention belongs to the technical field of ventilation detection, and particularly relates to a ventilation detection device for a mine. Background The interior of the mine is relatively closed, so that the ventilation performance of the interior of the mine is an important safety index, and the ventilation effect in the mine is often required to be detected in the checking and accepting process after the ventilation equipment is installed and in the overhaul process during the subsequent use. Current air flow detection is generally to measure the air flow velocity at a target position, but the test mode is not strict, because the air flow is not necessarily all flowing to the outside, some are eddy currents in the mine, and the local air flow velocity and the whole ventilation flow are not absolutely proportional. In order to solve the above problems, the present invention proposes a portable test device for analyzing a concentration change of a marking gas by releasing the marking gas in a mine and then sampling at different positions at different time periods. Disclosure of Invention Aiming at the situation, the invention provides the ventilation detection device for the mine, which can accumulate elastic potential energy and drive and open a sampling port for the sampling device by marking the pressure of the ventilation detection device when gas is released, and can drive the sampling device to retract by the elastic force of a coil spring after the gas is released, thereby completing the sampling of the gas; In order to overcome the technical contradiction, the invention obtains inspiration from the escapement of the mechanical watch, creatively provides a slow release mechanism, and can realize slow rotation of the central screw rod by alternately pushing the two sliding rods by the two groups of turntables, thereby realizing slow release of elasticity of the coil spring, and further realizing the technical aim of prolonging the gas sampling period. The invention provides a ventilation detection device for a mine, which comprises a slow release mechanism, an automatic energy storage mechanism and a gas sampling mechanism, wherein the slow release mechanism comprises a bottom shell, an alternate stop assembly and a resistance adjustment assembly, the resistance adjustment assembly is arranged in the bottom shell, the alternate stop assembly is arranged in the resistance adjustment assembly in a sliding manner, the automatic energy storage mechanism is arranged on the bottom shell, and the gas sampling mechanism is arranged on the automatic energy storage mechanism. Further, the automatic energy storage mechanism comprises an energy storage chamber, a central screw rod, a turbofan and a coil spring, wherein the energy storage chamber is arranged on the bottom shell, the central screw rod is rotationally arranged at the central position of the energy storage chamber, the turbofan is fixedly connected to the central screw rod, one end of the coil spring is fixedly connected to the central screw rod, and the other end of the coil spring is fixedly connected to the bottom shell. When the air flow passes through the turbofan quickly, the turbofan and the central screw rod are pushed to rotate, on one hand, the sampling piston extends out of the sampling sleeve to create conditions for subsequent gas sample collection, and on the other hand, the central screw rod rotates and simultaneously enables the coil spring to elastically deform and store elastic force, so that the slow release mechanism is driven to move after the air flow stops. Further, the gas sampling mechanism comprises a sampling sleeve, the sampling sleeve is arranged on the energy storage chamber, a stud bracket is arranged at the bottom of the sampling sleeve, a stud bearing is arranged on the stud bracket, and the central screw is fixedly connected in an inner ring of the stud bearing. The central screw can be supported by the stud bearing. Preferably, the alternative blocking component comprises two turntables, the turntables are fixedly connected to the central screw rod, blocking teeth are annularly and uniformly distributed on the turntables, and the blocking teeth on the two turntables are alternately distributed in the axial direction. As a further preferred aspect of the present invention, the alternate blocking assembly further includes two sets of sliding rods, two sets of linkage rods and linkage pins, one end of each sliding rod is provided with an inclined plane matched with the blocking teeth, the linkage pins are fixedly connected to the bottom shell, the linkage rods are rotatably arranged on the linkage pins, two ends of each linkage rod are symmetrically provided with waist-shaped grooves, the round rods at the other ends of the sliding rods are slidably arranged in the waist-shaped grooves, and the two sliding rods alternately stretch under the linkage of the linkag