Mine ventilation resistance measuring device

Abstract

The utility model discloses a mine ventilation resistance measuring device which comprises supporting rods, a second threaded rod and a ventilation resistance measuring instrument, the second threaded rod is located between the supporting rods on the two sides, the ventilation resistance measuring instrument is connected to the outer side of the second threaded rod in a threaded mode, and a second sliding block and a first sliding block slide on the outer sides of the supporting rods on the two sides respectively. According to the mine ventilation resistance measuring device, the gear is meshed with the tooth block, so that the ventilation resistance measuring instrument moves in the horizontal direction in the lifting process, the ventilation resistance measuring instrument can move in the horizontal direction and the vertical direction, and the ventilation resistance of different positions of a mine can be measured; and a worker does not need to manually lift the ventilation resistance tester for mobile measurement, so that the accuracy of a ventilation resistance measurement result is improved.

Description

Technical Field

[0001] This utility model relates to the field of resistance measurement technology, specifically a mine ventilation resistance measurement device. Background Technology

[0002] Mine ventilation resistance measurement is an important part of ventilation safety management. Its purpose is to understand the distribution of mine ventilation resistance, provide a basis for equal pressure fire prevention in goaf areas, and simulate the ventilation system of roadway connection. The authenticity and timeliness of ventilation resistance measurement data directly affect the scientificity and rationality of mine ventilation safety management decisions.

[0003] A ventilation resistance tester is an instrument used to detect ventilation resistance in mines. By measuring the ventilation resistance and related parameters of mine roadways, it helps workers understand the resistance distribution of the mine ventilation system and provides a basis for the formulation and implementation of mine safety technical measures.

[0004] In the current ventilation resistance measurement workflow, manual measurement is commonly used. Specifically, the anemometer is held by hand to perform the measurement. However, this traditional method has many drawbacks, seriously affecting the accuracy and reliability of the measurement data. On the one hand, there are significant differences in height, body shape, and personal operating habits among anemometers. These individual factors directly affect the running trajectory of the anemometer, making it lack a uniform and stable standard trajectory during the measurement process. This, in turn, interferes with the accurate acquisition of key parameters such as ventilation resistance. On the other hand, the continuous progress of mining operations causes the roadway cross-section to exhibit irregular shape changes. This complex and variable measurement environment is seriously deviating from the ideal conditions for anemometer operation, greatly increasing the error range when measuring ventilation resistance parameters. Ultimately, this leads to a significant reduction in measurement results, failing to accurately reflect the actual ventilation conditions and making it difficult to meet the current demand for high precision and high stability in ventilation resistance measurement. Utility Model Content

[0005] The purpose of this invention is to provide a mine ventilation resistance measuring device to solve the problem mentioned in the background art that the ventilation resistance measurement in the current market is carried out by the wind gauge operator holding a handheld anemometer, which results in large errors in the measured ventilation resistance parameters and affects the measurement effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mine ventilation resistance measuring device, comprising a support rod, a threaded rod II, and a ventilation resistance measuring instrument. The threaded rod II is located between the two support rods, and the ventilation resistance measuring instrument is threadedly connected to the outer side of the threaded rod II. Slider II and slider I slide on the outer side of the two support rods respectively.

[0007] Preferably, the support rod is equipped with legs at both ends, and the legs are provided with mounting holes, through which the legs are installed on the side wall of the mine.

[0008] Preferably, a servo motor is installed at the bottom of the top foot of the support rod on one side, and a threaded rod is installed at the output end of the servo motor. The bottom of the threaded rod is rotatably connected to the bottom foot.

[0009] Preferably, the second slider has an opening on its side, and a toothed block is installed on the side of the support rod near the second slider. The toothed block is located at the opening, and a rotating rod is rotatably connected to the side of the second slider.

[0010] Preferably, a threaded rod is hinged to one end of the rotating rod near the slider one, and a bolt assembly is provided at the hinge point between the threaded rod two and the rotating rod. A limit rod is hinged to the side of the slider two, and a bolt assembly is provided at the hinge point between the limit rod and the slider two.

[0011] Preferably, a gear is installed at the other end of the rotating rod, the gear meshes with the tooth block, and the outer side of the limiting rod slides with the ventilation resistance measuring instrument.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The gears and gear blocks mesh with each other, allowing the ventilation resistance measuring instrument to move horizontally during the lifting and lowering process. This enables the instrument to move both horizontally and vertically, allowing for the measurement of ventilation resistance at different locations in the mine. This eliminates the need for manual lifting and moving of the instrument, improving the accuracy of the measurement results. The rotating rod and threaded rod are hinged together, as are the slider and limiting rod. After the ventilation resistance measurement is completed, the threaded rod and limiting rod can be folded up, reducing the overall footprint and facilitating transport. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a top view schematic diagram of the slider structure of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the connection structure between the threaded rod and the rotating rod of this utility model.

[0018] In the diagram: 1. Support rod; 2. Slider 1; 3. Support leg; 4. Servo motor; 5. Slider 2; 6. Ventilation resistance measuring instrument; 7. Threaded rod 2; 8. Threaded rod 1; 9. Rotating rod; 10. Gear; 11. Gear block; 12. Limiting rod; 13. Bolt assembly. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 The present invention provides the following technical solution:

[0021] A mine ventilation resistance measuring device includes a support rod 1, a threaded rod 7, and a ventilation resistance measuring instrument 6. The threaded rod 7 is located between the two support rods 1. The ventilation resistance measuring instrument 6 is threadedly connected to the outer side of the threaded rod 7. The slider 2 5 and the slider 1 2 slide on the outer side of the two support rods 1 respectively. The two ends of the support rod 1 are equipped with support feet 3. The support feet 3 are provided with mounting holes and are installed on the mine sidewall through the mounting holes. The end of the rotating rod 9 near the slider 1 2 is hinged to the threaded rod 7. A bolt assembly 13 is provided at the hinge point between the threaded rod 2 7 and the rotating rod 9. The side of the slider 2 5 is hinged to a limit rod 12. A bolt assembly 13 is provided at the hinge point between the limit rod 12 and the slider 2 5.

[0022] Spread out the support rods 1 and legs 3 on both sides, push the slider 2 upward, and as the slider 2 moves upward, it pulls the threaded rod 7 and the limit rod 12 to rotate upward until the threaded rod 7 and the limit rod 12 rotate to the horizontal. Then, the operating bolt assembly 13 fixes the hinge joint of the rotating rod 9 and the threaded rod 7, and fixes the slider 5 and the limit rod 12 at the hinge joint. After that, install the legs 3 to the side of the mine through the mounting holes.

[0023] A servo motor 4 is installed at the bottom of the top support leg 3 on one side of the support rod 1. A threaded rod 8 is installed at the output end of the servo motor 4. The bottom of the threaded rod 8 is rotatably connected to the bottom support leg 3.

[0024] Start the servo motor 4. The operation of the servo motor 4 causes the threaded rod 8 to rotate. The rotation of the threaded rod 8 causes the slider 5 and slider 2 to move up and down. The up and down movement of slider 5 and slider 2 drives the threaded rod 7 and the limit rod 12 to rise and fall synchronously. During the rising and falling of the threaded rod 7 and the limit rod 12, the ventilation resistance measuring instrument 6 is also raised and lowered synchronously. This allows for the measurement of ventilation resistance at different heights, making the measurement results more comprehensive.

[0025] The second slider 5 has an opening on its side. A toothed block 11 is installed on the side of the support rod 1 near the second slider 5, with the toothed block 11 located at the opening. A rotating rod 9 is rotatably connected to the side of the second slider 5, and a gear 10 is installed at the other end of the rotating rod 9.

[0026] During the up-and-down movement of slider 2 5, it drives the rotating rod 9 and gear 10 to rise and fall synchronously. Since gear 10 and tooth block 11 mesh with each other, during the up-and-down movement of gear 10, tooth block 11 pushes gear 10, thereby causing gear 10 to rotate. The rotation of gear 10 drives threaded rod 2 7 to rotate synchronously. The rotation of threaded rod 2 7 causes ventilation resistance measuring instrument 6 to move left and right, thereby causing ventilation resistance measuring instrument 6 to move horizontally during the up-and-down movement, which can measure the ventilation resistance at different positions.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mine ventilation resistance measuring device, characterized in that, Includes support rod (1), threaded rod two (7) and ventilation resistance measuring instrument (6). Threaded rod two (7) is located in the middle of the two support rods (1). The ventilation resistance measuring instrument (6) is threadedly connected to the outside of threaded rod two (7). Slider two (5) and slider one (2) slide on the outside of the two support rods (1) respectively. A servo motor (4) is installed at the bottom of the top support leg (3) of the support rod (1) on one side. A threaded rod (8) is installed at the output end of the servo motor (4). The bottom of the threaded rod (8) is rotatably connected to the bottom support leg (3). The second slider (5) has an opening on its side. A toothed block (11) is installed on the side of the support rod (1) near the second slider (5). The toothed block (11) is located in the opening position. A rotating rod (9) is rotatably connected to the side of the second slider (5). The rotating rod (9) is hinged to a threaded rod (7) at one end near the slider (2). A bolt assembly (13) is provided at the hinge point between the threaded rod (7) and the rotating rod (9). A limit rod (12) is hinged to the side of the slider (5). A bolt assembly (13) is provided at the hinge point between the limit rod (12) and the slider (5).

2. The mine ventilation resistance measuring device according to claim 1, characterized in that: The support rod (1) is equipped with legs (3) at both ends. The legs (3) are provided with mounting holes and are installed on the side wall of the mine through the mounting holes.

3. The mine ventilation resistance measuring device according to claim 1, characterized in that: The other end of the rotating rod (9) is equipped with a gear (10), which meshes with the tooth block (11), and the outer side of the limiting rod (12) slides with the ventilation resistance measuring instrument (6).

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