Early warning device for spontaneous combustion of coal in goaf

Abstract

The utility model provides a goaf coal spontaneous combustion early warning device which is characterized in that a cylinder is pressed to drive four-side rods to move downwards, a positioning rod leaves a corresponding positioning groove, fixation between the cylinder and a stand column is removed, and the detection angle of a detection box can be adjusted by rotating the cylinder, the goaf coal spontaneous combustion early warning device comprises a base and the detection box, and an air inlet is formed in the outer side of the detection box; a turbofan is fixed in the detection box, the air inlet is matched with the turbofan, a temperature sensor, an air pressure sensor, a carbon monoxide sensor, a hydrogen sensor and a methane gas sensor are fixed in the detection box, four universal wheels are arranged at the bottom of the base, brake pads are arranged on the four universal wheels, and the brake pads are connected with the air inlet. The brake pads are used for fixing the universal wheels, a stand column is fixedly installed at the center of the top of the base, a cylinder is matched with the top of the stand column, the detection box is fixedly installed at the top of the cylinder, and a plurality of dampers are fixedly installed at the top of the cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of coal spontaneous combustion early warning in goaf areas, in particular to a coal spontaneous combustion early warning device in goaf areas. Background Art

[0002] Due to the reorganization of mines and continuous mining for several years, a large number of goafs have been formed under the coal production base. Various types of mine fires occur from time to time, causing a large amount of direct or indirect economic losses, and it is necessary to conduct self-ignition early warning detection in the goaf area; after searching, the public (announcement) number: CN220353907U discloses a goaf coal self-ignition early warning detection device, including a detection box, a turbine fan is fixed in the detection box, and a temperature sensor, an air pressure sensor, a carbon monoxide sensor, a hydrogen sensor, and a methane gas sensor are fixed in the detection box. A support seat is fixed on the outside of the detection box, and a vertical pole is fixed outside the support seat. The vertical pole is connected with an arched guard plate outside the vertical pole, and a compression spring is connected with the vertical pole outside the vertical pole. The turbine fan is used to suck air into the detection box, and it does not need to use a pipe body to guide the flow, and the mechanism distribution is simple.

[0003] The existing natural warning device is fixedly installed in one position, which is inconvenient to move and adjust, and is not flexible enough to use. Utility Model Content

[0004] In view of the defects existing in the prior art, the technical problem solved by the utility model is that the existing natural warning device is fixedly installed in one position, which is inconvenient to move and adjust, and is not flexible enough to use. A goaf coal spontaneous combustion warning device is provided.

[0005] In order to achieve the above objectives, the utility model provides:

[0006] A goaf coal spontaneous combustion early warning device comprises a base and a detection box, wherein an air inlet is arranged on the outer side of the detection box, a turbine fan is fixed in the detection box, and the air inlet cooperates with the turbine fan, a temperature sensor, an air pressure sensor, a carbon monoxide sensor, a hydrogen sensor, and a methane gas sensor are fixed in the detection box, four universal wheels are arranged at the bottom of the base, brake pads are arranged on the four universal wheels, and the brake pads are used to fix the universal wheels, a column is fixedly installed at the top center position of the base, a cylinder is cooperated with the top of the column, the detection box is fixedly installed on the top of the cylinder, a plurality of shock absorbers are fixedly installed on the top of the cylinder, the same arc-shaped cover is installed on the top of the plurality of shock absorbers, the arc-shaped cover is located at the top of the detection box, and a rotating mechanism is arranged between the column and the cylinder.

[0007] Preferably, a plurality of handles are installed on the outer side of the cylinder; the provided handles can facilitate the operation of the cylinder.

[0008] Preferably, the rotating mechanism includes a four-sided rod, a circular groove is provided at the bottom of the cylinder, a bearing is installed on the top inner wall of the circular groove, the four-sided rod is fixedly installed with the inner ring of the bearing, a four-sided groove is provided at the top of the column, the four-sided rod is slidingly connected with the inner wall of the four-sided groove, and a plurality of springs are fixedly installed at the bottom of the four-sided rod, and the plurality of springs are fixedly installed with the bottom inner wall of the four-sided groove; the springs provide elastic force for the four-sided rod, and the bearings provide support for the four-sided rod, thereby ensuring the stable rotation of the four-sided rod.

[0009] Preferably, two support blocks are fixedly installed on the inner wall of the circular groove, and positioning rods are fixedly installed on the top of the two support blocks. A fixing ring is sleeved on the top of the column, and a plurality of positioning grooves are opened at the bottom of the fixing ring. The positioning rods cooperate with the corresponding positioning grooves; the positioning rods enter the positioning grooves to fix the column and the cylinder.

[0010] Compared with the prior art, the advantages of the utility model are:

[0011] 1. The whole body is moved by four universal wheels, which is flexible and convenient to use. When the angle of the test box needs to be adjusted, press the cylinder to drive the four-side rods to slide downward in the four-side grooves. The cylinder drives the two positioning rods to move downward through two supporting blocks. The positioning rods leave the corresponding positioning grooves, release the fixation between the cylinder and the column, and rotate the cylinder to adjust the detection angle of the test box;

[0012] The utility model presses the cylinder to drive the four-side rods to move downward, and the positioning rods leave the corresponding positioning grooves to release the fixation between the cylinder and the column, and the detection angle of the detection box can be adjusted by rotating the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main structure diagram of this design;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the column, cylinder and rotating mechanism designed for this purpose;

[0015] Figure 3 Design for this Figure 2 Schematic diagram of the structure of part A;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the column and fixed ring in this design.

[0017] In the figure: 1. base; 11. universal wheel; 2. column; 3. cylinder; 31. handle; 32. circular groove; 4. shock absorber; 41. arc cover; 5. detection box; 6. rotating mechanism; 61. bearing; 62. four-side rod; 63. four-side groove; 64. spring; 65. fixing ring; 66. positioning groove; 67. positioning rod; 68. support block. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0019] See also Figure 1-4 As shown, a goaf coal spontaneous combustion early warning device comprises a base 1 and a detection box 5, an air inlet is arranged on the outer side of the detection box 5, a turbine fan is fixed in the detection box 5, the air inlet cooperates with the turbine fan, a temperature sensor, an air pressure sensor, a carbon monoxide sensor, a hydrogen sensor, and a methane gas sensor are fixed in the detection box 5, four universal wheels 11 are arranged at the bottom of the base 1, brake pads are arranged on the four universal wheels 11, and the brake pads are used to fix the universal wheels 11, a column 2 is fixedly installed at the top center position of the base 1, a cylinder 3 is cooperated with the top of the column 2, the detection box 5 is fixedly installed on the top of the cylinder 3, a plurality of shock absorbers 4 are fixedly installed on the top of the cylinder 3, the tops of the plurality of shock absorbers 4 are installed with the same arc cover 41, the arc cover 41 is located at the top of the detection box 5, a rotating mechanism 6 is arranged between the column 2 and the cylinder 3, a plurality of handles 31 are arranged on the outer side of the cylinder 3; the handles 31 can be convenient for operating the cylinder 3.

[0020] In this embodiment, the rotating mechanism 6 includes a four-sided rod 62, a circular groove 32 is opened at the bottom of the cylinder 3, a bearing 61 is installed on the top inner wall of the circular groove 32, the four-sided rod 62 is fixedly installed with the inner ring of the bearing 61, a four-sided groove 63 is opened at the top of the column 2, the four-sided rod 62 is slidably connected with the inner wall of the four-sided groove 63, and a plurality of springs 64 are fixedly installed at the bottom of the four-sided rod 62, and the plurality of springs 64 are fixedly installed with the bottom inner wall of the four-sided groove 63; the spring 64 provides elastic force for the four-sided rod 62, and the bearing 61 provides support for the four-sided rod 62, which can ensure the stable rotation of the four-sided rod 62.

[0021] In this embodiment, two support blocks 68 are fixedly installed on the inner wall of the circular groove 32, and positioning rods 67 are fixedly installed on the top of the two support blocks 68. A fixing ring 65 is sleeved on the top of the column 2, and a plurality of positioning grooves 66 are opened at the bottom of the fixing ring 65. The positioning rods 67 cooperate with the corresponding positioning grooves 66; the positioning rods 67 enter the positioning grooves 66 to fix the column 2 and the cylinder 3.

[0022] Working principle: When in use, air is sucked in through the turbine fan inside the detection box 5, and the set temperature sensor, air pressure sensor, carbon monoxide sensor, hydrogen sensor, and methane gas sensor can perform gas detection. This is the existing technology. When the whole needs to be moved, the whole is pushed to move by relying on four universal wheels 11. It is flexible and convenient to use. When the angle of the detection box 5 needs to be adjusted, the cylinder 3 is pressed to drive the four-side rod 62 to slide downward in the four-side groove 63. The cylinder 3 drives the two positioning rods 67 to move downward through the two support blocks 68. The positioning rod 67 leaves the corresponding positioning groove 66, releases the fixation between the cylinder 3 and the column 2, and then the cylinder 3 is rotated to adjust the detection angle of the detection box 5.

[0023] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those with the same or similar technical solutions as the present utility model are within the scope of protection.

Claims

1. A goaf coal spontaneous combustion early warning device, comprising a base (1) and a detection box (5), wherein an air inlet is arranged on the outside of the detection box (5), a turbine blower is fixed inside the detection box (5), the air inlet cooperates with the turbine blower, a temperature sensor, an air pressure sensor, a carbon monoxide sensor, a hydrogen sensor, and a methane gas sensor are fixed inside the detection box (5), characterized in that: The bottom of the base (1) is provided with four universal wheels (11); a column (2) is fixedly installed at the center position of the top of the base (1); a cylinder (3) is matched with the top of the column (2); a detection box (5) is fixedly installed on the top of the cylinder (3); a plurality of shock absorbers (4) are fixedly installed on the top of the cylinder (3); a same arc-shaped cover (41) is installed on the top of the plurality of shock absorbers (4); the arc-shaped cover (41) is located on the top of the detection box (5); and a rotating mechanism (6) is provided between the column (2) and the cylinder (3).

2. The goaf coal spontaneous combustion warning device according to claim 1 is characterized by: A plurality of handles (31) are installed on the outer side of the cylinder (3).

3. The goaf coal spontaneous combustion warning device according to claim 1 is characterized by: The rotating mechanism (6) comprises a four-sided rod (62), a circular groove (32) is provided at the bottom of the cylinder (3), a bearing (61) is installed on the top inner wall of the circular groove (32), the four-sided rod (62) and the inner ring of the bearing (61) are fixedly installed, a four-sided groove (63) is provided at the top of the column (2), and the four-sided rod (62) is slidably connected to the inner wall of the four-sided groove (63).

4. The goaf coal spontaneous combustion warning device according to claim 3 is characterized by: A plurality of springs (64) are fixedly mounted on the bottom of the four-side rod (62), and the plurality of springs (64) are fixedly mounted on the bottom inner wall of the four-side groove (63).

5. The goaf coal spontaneous combustion warning device according to claim 3 is characterized by: Two support blocks (68) are fixedly mounted on the inner wall of the circular groove (32), and positioning rods (67) are fixedly mounted on the tops of the two support blocks (68). A fixing ring (65) is sleeved on the top of the column (2), and a plurality of positioning grooves (66) are formed at the bottom of the fixing ring (65), and the positioning rods (67) are matched with the corresponding positioning grooves (66).

6. The goaf coal spontaneous combustion warning device according to claim 1, characterized in that: Brake pads are arranged on the four universal wheels (11).

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