Coal mine gas concentration detector

Abstract

The utility model relates to the technical field of concentration detectors, in particular to a coal mine gas concentration detector which comprises a detector body, a groove is formed in the bottom face of the detector body, a gas inlet pipe is fixedly connected into the groove, and a supporting frame is fixedly connected to the inner wall of the groove. The dust-proof device has the advantages that air entering the air inlet pipe can be filtered through the dust-proof frame, external dust can be prevented from entering the air inlet pipe, when dust is accumulated outside the dust-proof frame, the motor can be started to drive the lead screw to rotate, the brush plate can be driven to slide on the outer surface of the dust-proof frame through thread transmission, and the dust-proof effect is achieved. The purpose of automatically cleaning dust can be achieved, after a filter screen in the dustproof frame is damaged, a control panel can be pressed to drive a plug pin to move to an insertion hole, locking of a pressing frame can be relieved, then the pressing frame can be pulled out from the interior of a groove, locking of the dustproof frame can be relieved, and the dustproof frame can be rapidly detached and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of concentration detectors, in particular to a coal mine gas concentration detector. Background Art

[0002] A coal mine gas concentration detector is a device specifically used to detect gas concentration in coal mines. Gas, whose main component is methane, is a common harmful gas in coal mines. Excessive concentration may lead to dangerous situations such as explosions or poisoning. Therefore, accurate and timely detection of coal mine gas concentration is crucial. Coal mine gas concentration detectors play an important role in coal mine safety production. They help prevent gas explosions and poisoning accidents, and ensure the safety of workers and the normal operation of coal mines.

[0003] Gas concentration detection devices are usually installed in coal lanes, and a large amount of dust will be generated when mining coal underground. The existing gas concentration detection devices usually collect air and then detect the air to detect the gas concentration in the air. When collecting air, the dust in the air will adhere to the inner wall of the air collection tube. When the adhesion is too large, the air collection tube will be blocked. In order to prevent the air collection tube from being blocked, a dustproof net is usually installed at the air inlet end of the air collection tube to filter the dust, and the dustproof net is usually glued to the outer casing of the detector with glue. When the dustproof net is damaged and needs to be replaced, it will be troublesome to disassemble it. Therefore, a coal mine gas concentration detector is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a coal mine gas concentration detector to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a coal mine gas concentration detector, including a detector body, a groove is provided on the bottom surface of the detector body, an air intake pipe is fixedly connected to the inside of the groove, a support frame is fixedly connected to the inner wall of the groove, a pressure frame is slidably connected to the inner wall of the groove, a control groove is provided on the bottom surface of the pressure frame, two control plates are slidably connected to the inner wall of the control groove, a spring is fixedly connected between the two control plates, a latch is fixedly connected to the side of the control plate away from the spring, the latch is snapped with the detector body, a dustproof frame is arranged between the pressure frame and the support frame, the dustproof frame corresponds to the air intake pipe, the dustproof frame is slidably connected to the pressure frame, a motor is fixedly connected to the bottom of the detector body, a screw rod is fixedly connected to the output end of the motor, a movable plate is threadedly connected to the outer surface of the screw rod, the movable plate is slidably connected to the detector body, a brush plate is fixedly connected to the side of the movable plate, and the brush plate is slidably connected to the dustproof frame.

[0007] Preferably, any of the above schemes is that a guide rod is fixedly connected to the bottom of the detector body, the guide rod is slidably connected to the movable plate, and the movable plate is slidably connected to the detector body.

[0008] Preferably, one side of the movable plate is provided with a threaded hole, the screw is threadedly connected to the movable plate through the threaded hole, and one end of the screw away from the motor is rotatably connected to the detector body through a bearing.

[0009] Preferably, any of the above schemes has an inner wall of the groove provided with a plug hole, the plug pin is engaged with the detector body through the plug hole, and the plug pin is slidably connected with the pressure frame.

[0010] Preferably, any of the above schemes is that a sealing gasket is fixedly connected to the top surface of the dustproof frame, a sealing groove is provided on the bottom surface of the support frame, and the sealing gasket is slidably connected to the support frame through the sealing groove.

[0011] Preferably, any of the above schemes is that a limit plate is fixedly connected to the side of the pressure frame, a limit groove is provided on the inner wall of the groove, and the limit plate is slidably connected to the detector body via the limit groove.

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

[0013] When it is necessary to detect the coal mine gas concentration, the detector body can be installed at the use position with bolts, and the coal mine gas concentration can be detected. The air entering the air intake pipe can be filtered through the dustproof frame to prevent external dust from entering the air intake pipe. When dust accumulates on the outside of the dustproof frame, the motor can be turned on to drive the screw rod to rotate, and the brush plate can be driven to slide on the outer surface of the dustproof frame through threaded transmission, so as to achieve the purpose of automatic dust cleaning. When the filter inside the dustproof frame is damaged, the control panel can be pressed to drive the pin to move to the socket, so as to release the lock of the pressure frame, and then the pressure frame can be pulled out from the groove, so as to release the lock of the dustproof frame, and the dustproof frame can be quickly disassembled and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the assembly of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the explosion diagram of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the detector body of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the brush plate of the utility model;

[0018] Figure 5 This is a structural schematic diagram of the press frame of the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the dustproof frame of the utility model;

[0020] Figure 7 It is a schematic diagram of the structure of point A of the utility model.

[0021] In the figure: 1-detector body, 2-groove, 3-inlet pipe, 4-support frame, 5-pressure frame, 6-control groove, 7-control plate, 8-spring, 9-latch, 10-dustproof frame, 11-motor, 12-screw, 13-moving plate, 14-brush plate, 15-guide rod, 16-threaded hole, 17-jack, 18-sealing pad, 19-sealing groove, 20-limiting plate, 21-limiting groove. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0023] like Figures 1 to 7As shown, a coal mine gas concentration detector comprises a detector body 1, a groove 2 is provided on the bottom surface of the detector body 1, an air inlet pipe 3 is fixedly connected inside the groove 2, a support frame 4 is fixedly connected to the inner wall of the groove 2, a pressure frame 5 is slidably connected to the inner wall of the groove 2, a control groove 6 is provided on the bottom surface of the pressure frame 5, two control plates 7 are slidably connected to the inner wall of the control groove 6, a spring 8 is fixedly connected between the two control plates 7, a latch 9 is fixedly connected to the side of the control plate 7 away from the spring 8, the latch 9 is snapped with the detector body 1, a dustproof frame 10 is arranged between the pressure frame 5 and the support frame 4, the dustproof frame 10 corresponds to the air inlet pipe 3, the dustproof frame 10 is slidably connected to the pressure frame 5, a motor 11 is fixedly connected to the bottom of the detector body 1, a screw rod 12 is fixedly connected to the output end of the motor 11, a moving plate 13 is threadedly connected to the outer surface of the screw rod 12, the moving plate 13 is slidably connected to the detector body 1, a brush plate 14 is fixedly connected to the side of the moving plate 13, and the brush plate 14 is slidably connected to the dustproof frame 10.

[0024] As an optional technical solution of the present invention, a guide rod 15 is fixedly connected to the bottom of the detector body 1, the guide rod 15 is slidably connected to the movable plate 13, and the movable plate 13 is slidably connected to the detector body 1. The guide rod 15 can limit the movement of the movable plate 13 to make its movement more stable.

[0025] As an optional technical solution of the utility model, a threaded hole 16 is penetrated through one side of the movable plate 13, and the screw rod 12 is threadedly connected to the movable plate 13 through the threaded hole 16. The end of the screw rod 12 away from the motor 11 is rotatably connected to the detector body 1 through a bearing. The motor 11 is turned on to drive the screw rod 12 to rotate. The brush plate 14 can be driven to slide on the outer surface of the dustproof frame 10 through threaded transmission, thereby achieving the purpose of automatic dust cleaning.

[0026] As an optional technical solution of the present utility model, a socket 17 is provided on the inner wall of the groove 2, and the latch 9 is engaged with the detector body 1 through the socket 17. The latch 9 is slidably connected with the pressing frame 5. Pressing the control panel 7 drives the latch 9 to move to the socket 17, thereby releasing the lock on the pressing frame 5.

[0027] As an optional technical solution of the utility model, a sealing gasket 18 is fixedly connected to the top surface of the dustproof frame 10, and a sealing groove 19 is opened on the bottom surface of the support frame 4. The sealing gasket 18 is slidably connected to the support frame 4 through the sealing groove 19. Through the matching setting between the sealing gasket 18 and the sealing groove 19, the sealing between the support frame 4 and the dustproof frame 10 can be increased.

[0028] As an optional technical solution of the present invention, a limiting plate 20 is fixedly connected to the side of the pressing frame 5, a limiting groove 21 is provided on the inner wall of the groove 2, and the limiting plate 20 is slidably connected to the detector body 1 through the limiting groove 21. The setting of the limiting groove 21 can facilitate the installation of the pressing frame 5.

[0029] A coal mine gas concentration detector, the working principle is as follows:

[0030] 1): When it is necessary to detect the coal mine gas concentration, the detector body 1 can be installed at the use position using bolts to detect the coal mine gas concentration.

[0031] 2): When dust accumulates outside the dustproof frame 10, the motor 11 can be turned on to drive the screw rod 12 to rotate. The brush plate 14 can be driven to slide on the outer surface of the dustproof frame 10 through thread transmission, so as to achieve the purpose of automatic dust cleaning.

[0032] 3): When the filter inside the dustproof frame 10 is damaged, the control panel 7 can be pressed to drive the latch 9 to move to the socket 17, thereby releasing the lock on the pressing frame 5. The pressing frame 5 can then be pulled out from the groove 2, releasing the lock on the dustproof frame 10, and the dustproof frame 10 can be quickly disassembled and replaced.

[0033] To sum up, when it is necessary to perform coal mine gas concentration detection operations, the coal mine gas concentration detector can use bolts to install the detector body 1 at the use position, and the coal mine gas concentration can be detected. Moreover, the air entering the inside of the air intake pipe 3 can be filtered through the dustproof frame 10, so as to prevent external dust from entering the inside of the air intake pipe 3. When dust accumulates outside the dustproof frame 10, the motor 11 can be turned on to drive the screw rod 12 to rotate, and the brush plate 14 can be driven by threaded transmission to slide on the outer surface of the dustproof frame 10, so as to achieve the purpose of automatic dust cleaning. When the filter screen inside the dustproof frame 10 is damaged, the control panel 7 can be pressed to drive the pin 9 to move to the socket 17, so as to release the lock of the pressure frame 5, and then the pressure frame 5 can be pulled out from the inside of the groove 2, so as to release the lock of the dustproof frame 10, and the dustproof frame 10 can be quickly disassembled and replaced.

Claims

1. A coal mine gas concentration detector, characterized in that: The detector body (1) comprises a detector body (1), a groove (2) is provided on the bottom surface of the detector body (1), an air intake pipe (3) is fixedly connected inside the groove (2), a support frame (4) is fixedly connected to the inner wall of the groove (2), a pressure frame (5) is slidably connected to the inner wall of the groove (2), a control groove (6) is provided on the bottom surface of the pressure frame (5), two control plates (7) are slidably connected to the inner wall of the control groove (6), a spring (8) is fixedly connected between the two control plates (7), a latch (9) is fixedly connected to the side of the control plate (7) away from the spring (8), and the latch (9) is locked with the detector body (1). A dustproof frame (10) is arranged between the pressing frame (5) and the supporting frame (4), the dustproof frame (10) corresponds to the air inlet pipe (3), the dustproof frame (10) is slidably connected to the pressing frame (5), the bottom of the detector body (1) is fixedly connected to a motor (11), the output end of the motor (11) is fixedly connected to a screw rod (12), the outer surface of the screw rod (12) is threadedly connected to a movable plate (13), the movable plate (13) is slidably connected to the detector body (1), the side of the movable plate (13) is fixedly connected to a brush plate (14), and the brush plate (14) is slidably connected to the dustproof frame (10).

2. A coal mine gas concentration detector according to claim 1, characterized in that: A guide rod (15) is fixedly connected to the bottom of the detector body (1); the guide rod (15) is slidably connected to a movable plate (13); and the movable plate (13) is slidably connected to the detector body (1).

3. A coal mine gas concentration detector according to claim 2, characterized in that: A threaded hole (16) is formed through one side of the movable plate (13), and the screw rod (12) is threadedly connected to the movable plate (13) through the threaded hole (16). One end of the screw rod (12) away from the motor (11) is rotatably connected to the detector body (1) through a bearing.

4. A coal mine gas concentration detector according to claim 3, characterized in that: The inner wall of the groove (2) is provided with an insertion hole (17), the latch (9) is engaged with the detector body (1) via the insertion hole (17), and the latch (9) is slidably connected with the pressing frame (5).

5. A coal mine gas concentration detector according to claim 4, characterized in that: A sealing gasket (18) is fixedly connected to the top surface of the dustproof frame (10), a sealing groove (19) is provided on the bottom surface of the support frame (4), and the sealing gasket (18) is slidably connected to the support frame (4) via the sealing groove (19).

6. A coal mine gas concentration detector according to claim 5, characterized in that: The side of the pressing frame (5) is fixedly connected to a limiting plate (20), the inner wall of the groove (2) is provided with a limiting groove (21), and the limiting plate (20) is slidably connected to the detector body (1) via the limiting groove (21).

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