Single-hole metering sensor

Abstract

The utility model discloses a single-hole metering sensor, which belongs to the technical field of gas detection, and comprises a bottom plate, a plurality of mounting holes and a plurality of measuring holes, the fixed frame is mounted on the bottom plate; the sampling barrel is fixedly connected to the fixing frame, a cylindrical groove is formed in the sampling barrel, and a detection probe is arranged on the groove wall of the cylindrical groove; the fixed valve is fixedly connected to the interior of the air inlet end of the cylindrical groove; the movable valve is mounted in the cylindrical groove in a sliding manner; when the movable valve moves in the direction of the fixed valve, air between the movable valve and the fixed valve is exhausted through the movable valve, when the movable valve moves in the direction away from the fixed valve, external air enters the space between the movable valve and the fixed valve through the fixed valve, and the detection probe detects the air between the movable valve and the fixed valve. According to the utility model, the gas concentration in the coal mine drill hole can be automatically detected, workers do not need to frequently enter the field for measurement, and the labor intensity of the workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a single hole metering sensor. BACKGROUND

[0002] At present, the gas concentration in the coal mine drilling is generally measured by the staff carrying equipment sampling, but along with the increase of time, the gas concentration will fluctuate, so the staff needs to frequently measure, which not only is time-consuming and laborious, but also greatly increases the labor intensity of the staff, in order to solve the above problems, the utility model provides a single hole metering sensor. UTILITY MODEL CONTENTS

[0003] In view of the above technical deficiencies, the utility model aims at providing a single hole metering sensor, which can automatically detect the gas concentration in the coal mine drilling, without the staff frequently entering the scene to measure, thereby reducing the labor intensity of the staff.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: the utility model provides a single hole metering sensor, which comprises:

[0005] A bottom plate is provided with a plurality of mounting holes;

[0006] A fixed frame is mounted on the bottom plate, and a circuit board is mounted in the fixed frame;

[0007] A sampling cylinder is fixedly connected to the side of the fixed frame away from the bottom plate, and a cylindrical groove penetrating through both ends is arranged on the sampling cylinder, and a detection probe is fixedly installed on the groove wall of the cylindrical groove;

[0008] A fixed valve is fixedly connected to the inside of the gas inlet end of the cylindrical groove, and the external air enters the inside of the cylindrical groove through the fixed valve in one direction;

[0009] A movable valve is slidingly installed in the inside of the cylindrical groove;

[0010] When the movable valve moves towards the fixed valve, the air between the movable valve and the fixed valve is discharged through the movable valve, when the movable valve moves away from the fixed valve, the external air enters between the movable valve and the fixed valve through the fixed valve, and the detection probe detects the air between the movable valve and the fixed valve.

[0011] Preferably, the fixed valve comprises:

[0012] A fixed ring is fixedly connected to the inside of the cylindrical groove;

[0013] The first elastic sheet is located on one side of the fixed ring close to the center of the sampling cylinder, one side of the first elastic sheet is fixedly connected with the fixed ring, and the first elastic sheet is tightly attached to the fixed ring under the elastic force of the first elastic sheet.

[0014] Preferably, the mobile valve comprises:

[0015] A piston is slidingly installed inside the cylindrical groove, and a plurality of air outlets are arranged on the piston;

[0016] A plurality of second elastic sheets are arranged one by one corresponding to the plurality of air outlets, the second elastic sheets are located on one side of the piston away from the fixed ring, the size of the second elastic sheets is larger than the size of the air outlets, one side of the second elastic sheets is fixedly connected with the piston, and the second elastic sheets are tightly attached to the piston under the elastic force of the second elastic sheets.

[0017] Preferably, a spring is fixedly connected between the piston and the fixed frame, the fixed frame is fixedly connected inside the sampling cylinder, and the spring has an elastic force for pushing the piston towards the fixed ring.

[0018] Preferably, a pull rope is fixedly connected to the piston, the pull rope passes through the spring, the fixed frame, the guide pipe and the fixed frame in sequence and is fixedly connected with the storage shaft, the storage shaft is rotatably installed inside the fixed frame and is driven by the explosion-proof motor installed inside the fixed frame.

[0019] The beneficial effects of the present application are as follows:

[0020] The present application realizes that the mobile valve moves away from the fixed valve when measuring, so that the air in the drill hole enters the space between the mobile valve and the fixed valve, thereby measuring the concentration of gas, and after measurement, the mobile valve moves towards the fixed valve, at this time, the measured air is discharged through the mobile valve, and the air discharged through the mobile valve in the last measurement step is pushed out by the mobile valve, so that the two air samples do not interfere with each other, ensuring the accuracy of the measurement, and the movement of the mobile valve can be remotely controlled by the staff, without the staff frequently entering the site for measurement, reducing the labor intensity of the staff. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 A structure schematic view (a first visual angle) of a single-hole metering sensor provided by the utility model.

[0023] Figure 2 A structure schematic view (a second visual angle) of a single-hole metering sensor provided by the utility model.

[0024] Figure 3 A sectional view of the utility model.

[0025] Figure 4 An explosion view of the fixed ring and the first elastic sheet of the utility model.

[0026] Figure 5 An explosion view of the piston and the second elastic sheet of the utility model.

[0027] Mark explanation:

[0028] 1, bottom plate, 2, fixed frame, 3, circuit board, 4, sampling cylinder, 5, fixed ring, 6, first elastic sheet, 7, piston, 8, gas outlet, 9, second elastic sheet, 10, fixed frame, 11, spring, 12, pull rope, 13, storage shaft, 14, explosion-proof motor, 15, guide pipe, 16, cylindrical groove, 17, detection probe. Specific implementation

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0030] The utility model provides a single-hole metering sensor, as shown in the figure. Figures 1 to 5

[0031] Embodiment one:

[0032] ​A single-hole metering sensor, comprising a base plate 1, which is installed on the inner wall of a drill hole through a mounting hole provided thereon (by screwing a fixing screw through the mounting hole into the inner wall of the drill hole), a fixed frame 2 is bolted on the base plate 1, a circuit board 3 is installed inside the fixed frame 2, a sampling cylinder 4 is fixedly connected to the side of the fixed frame 2 away from the base plate 1, a cylindrical groove 16 is provided through the two ends of the sampling cylinder 4, a detection probe 17 is installed on the groove wall of the cylindrical groove 16, the detection probe 17 is electrically connected with the circuit board 3, a fixed valve is fixedly installed inside the air inlet end of the cylindrical groove 16, and the air outside can enter the inside of the cylindrical groove 16 through the fixed valve in a one-way manner, but cannot be discharged from the inside of the cylindrical groove 16 through the fixed valve.

[0033] A movable valve is slidably installed inside the cylindrical groove 16, the air inside the cylindrical groove 16 is discharged through the movable valve in a one-way manner, the air outside cannot enter between the movable valve and the fixed valve through the movable valve, when the movable valve moves towards the fixed valve, the air between the movable valve and the fixed valve is discharged through the movable valve, when the movable valve moves away from the fixed valve, the air outside enters between the movable valve and the fixed valve through the fixed valve, at this time, the detection probe 17 on the groove wall of the cylindrical groove 16 detects the air entering between the movable valve and the fixed valve.

[0034] The detection probe 17 and the circuit board 3 are both prior art, and their working principles are not the technical features of the utility model, so the utility model will not be described in detail, for example, the circuit board 3 can adopt an Internet of Things module, and the detection probe 17 can adopt a TPM-1.8T V2.0 model.

[0035] The data detected by the detection probe 17 can be sent to a receiving terminal (such as a computer) of a worker through the Internet of Things module, and the worker can remotely send a signal to the Internet of Things module to control the movement of the movable valve, so as to control whether to perform a detection work.

[0036] Embodiment two:

[0037] The fixed valve comprises a fixed ring 5, which is fixedly connected inside the air inlet end of the cylindrical groove 16, the side of the fixed ring 5 close to the center of the sampling cylinder 4 is provided with a first elastic sheet 6, the diameter of the first elastic sheet 6 is greater than the inner diameter of the fixed ring 5, one side of the first elastic sheet 6 is fixedly connected with the side surface of the fixed ring 5, the first elastic sheet 6 is tightly attached to the fixed ring 5 under the action of its own elastic force, when the movable valve moves away from the fixed valve, the air outside can enter the inside of the sampling cylinder 4 under the action of air pressure to overcome the elastic force of the first elastic sheet 6, and when the movable valve moves towards the fixed valve, the air between the movable valve and the fixed valve cannot push open the first elastic sheet 6 to flow to the outside of the sampling cylinder 4 through the fixed valve.

[0038] Embodiment three:

[0039] The mobile valve comprises a piston 7, which is slidingly installed inside the cylindrical groove 16 and is in close contact with the inner wall of the cylindrical groove 16, a plurality of air outlets 8 are arranged on the piston 7, a plurality of second elastic sheets 9 are arranged on the side of the piston 7 away from the fixed ring 5, the plurality of second elastic sheets 9 correspond to the plurality of air outlets 8 one by one, one side of the second elastic sheet 9 is fixedly connected with the piston 7, the second elastic sheet 9 is in close contact with the piston 7 under the elastic force of the second elastic sheet 9, when the piston 7 moves towards the fixed ring 5, the air between the mobile valve and the fixed valve will push away the second elastic sheet 9 to pass through the air outlet 8 and flow to the outside of the space formed between the mobile valve and the fixed valve, and when the mobile valve moves away from the fixed valve, the space formed between the mobile valve and the fixed valve will generate a negative pressure, and the air outside will enter the space formed between the mobile valve and the fixed valve through the fixed ring 5.

[0040] The spring 11 is fixedly connected between the piston 7 and the fixed frame 10, the fixed frame 10 is in the shape of a long strip, the four end points of the fixed frame 10 are fixedly connected with the groove wall of the cylindrical groove 16, the fixed frame 10 will not affect the flow of air in the cylindrical groove 16, one end of the spring 11 is fixedly connected with the piston 7, and the other end is fixedly connected with the fixed frame 10, the spring 11 has an elastic force for pushing the piston 7 towards the fixed ring 5, the pull rope 12 is further fixedly connected with the piston 7, one end of the pull rope 12 away from the piston 7 passes through the spring 11, the fixed frame 10, the guide pipe 15 and the fixed frame 2 in sequence and is fixedly connected with the storage shaft 13 which is rotatably installed in the fixed frame 2, the guide pipe 15 is fixedly connected with the fixed frame 10, and the storage shaft 13 is driven by the explosion-proof motor 14 which is electrically connected with the circuit board 3.

[0041] The motor shaft of the explosion-proof motor 14 drives the storage shaft 13 to rotate clockwise, so that the pull rope 12 can be wound and stored on the storage shaft 13, so that the piston 7 can be pulled by the pull rope 12 to move away from the fixed ring 5.

[0042] The motor shaft of the explosion-proof motor 14 drives the storage shaft 13 to rotate counterclockwise, so that the pull rope 12 wound and stored on the storage shaft 13 can be released, and at this time, the piston 7 will move towards the fixed ring 5 under the elastic force of the spring 11.

[0043] The circuit board 3 and the explosion-proof motor 14 are connected with the power supply outside through cables respectively.

[0044] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A single-hole metering sensor, characterized by, The utility model relates to a kind of air quality detection device, including: Bottom plate (1), it is equipped with multiple mounting holes on the bottom plate (1); Fixed frame (2), the fixed frame (2) is installed on bottom plate (1), and the inside of the fixed frame (2) is installed with circuit board (3); Sampling cylinder (4), the sampling cylinder (4) is fixedly connected on the side face of fixed frame (2) away from bottom plate (1), and sampling cylinder (4) is equipped with two ends through cylindrical groove (16), and detection probe (17) is fixedly installed on the groove wall of cylindrical groove (16); Fixed valve, the fixed valve is fixedly connected in the inside of cylindrical groove (16) air inlet end, and outside air passes through fixed valve one-way into the inside of cylindrical groove (16); Mobile valve, the mobile valve is slidably installed in the inside of cylindrical groove (16); Wherein, when mobile valve moves to the direction of fixed valve, air between mobile valve and fixed valve is discharged through mobile valve, when mobile valve moves to the direction away from fixed valve, outside air enters between mobile valve and fixed valve through fixed valve, and detection probe (17) detects air between mobile valve and fixed valve.

2. A single aperture metrology sensor as claimed in claim 1, wherein, The fixed valve includes: Fixed ring (5), the fixed ring (5) is fixedly connected in the inside of cylindrical groove (16); First elastic sheet (6), the diameter of the first elastic sheet (6) is greater than the inner diameter of fixed ring (5), and the first elastic sheet (6) is located on the side face of fixed ring (5) close to the center of sampling cylinder (4), and one side of first elastic sheet (6) is fixedly connected with fixed ring (5), and is tightly attached with fixed ring (5) under the action of its own elastic force.

3. A single aperture metrology sensor as claimed in claim 1, wherein, The mobile valve includes: Piston (7), the piston (7) is slidably installed in the inside of cylindrical groove (16), and piston (7) is equipped with multiple air outlets (8); Multiple second elastic sheets (9), multiple second elastic sheets (9) correspond to multiple air outlets (8), and second elastic sheet (9) is located on the side of piston (7) away from fixed ring (5), the size of second elastic sheet (9) is greater than the size of air outlet (8), and one side of second elastic sheet (9) is fixedly connected with piston (7), and is tightly attached with piston (7) under the action of its own elastic force.

4. A single aperture metrology sensor as claimed in claim 3, wherein, Spring (11) is fixedly connected between the piston (7) and fixed frame (10), the fixed frame (10) is fixedly connected in the inside of sampling cylinder (4), and spring (11) has the elastic force of pushing piston (7) to the direction of fixed ring (5).

5. A single aperture metrology sensor as claimed in claim 4, wherein, Pulling rope (12) is fixedly connected on the piston (7), the pulling rope (12) passes through spring (11), fixed frame (10), guide pipe (15) and fixed frame (2) in sequence and is fixedly connected with storage shaft (13), the storage shaft (13) is rotatably installed in the inside of fixed frame (2), and is driven by explosion-proof motor (14) installed in the inside of fixed frame (2).

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