Portable gas detector for coal mine goaf

Abstract

The portable gas detector comprises a detector body and a base, a first supporting column is fixedly connected to the base, a second supporting column is slidably connected into the first supporting column, a third supporting column is slidably connected into the second supporting column, and a gas inlet is formed in the detector body. A fixing frame is fixedly connected to the back face of the detector body, fixing plates matched with the fixing frame are fixedly connected to the first supporting column, the second supporting column and the third supporting column, and the fixing plates are located at the bottom of the first supporting column, the top of the second supporting column and the top of the third supporting column respectively. And a first supporting spring is fixedly connected between the second supporting column and the bottom wall of the first supporting column. Compared with the prior art, the portable gas detector for the coal mine goaf has the advantages that gas at different heights in the goaf can be comprehensively detected, the detection is convenient, the detection time is shortened, and the gas detector is not easy to fall off.

Description

Technical Field

[0001] The utility model belongs to the technical field of portable gas detectors for coal mine goaf areas, and in particular relates to a portable gas detector for coal mine goaf areas. Background Art

[0002] Gas detection in mine goaf is one of the important links in mine safety production. It aims to timely detect and control harmful gases that may exist in the goaf to ensure the safety of miners.

[0003] Portable gas detectors generally refer to small handheld gas detectors, which are commonly used gas detection tools in mines. The gas concentration in the goaf can be detected and displayed through the sensor on the detection instrument. Miners can carry handheld gas detectors with them and judge whether the gas concentration in the goaf exceeds the standard according to the display results on the instrument.

[0004] The existing portable gas detector is easy to drop when held in the hand, causing damage to the gas detector. Secondly, when conducting gas detection in the goaf, it is necessary to conduct a full range of detection on the upper, middle and lower layers of the goaf. The detection personnel are limited in height and cannot move the gas detector to a high place. The detection personnel need to frequently change the position of the gas detector in their hands, which is inconvenient for detection and increases the detection time. Utility Model Content

[0005] The utility model aims to provide a portable gas detector for coal mine goaf, which can perform comprehensive detection of gases at different heights in the goaf, is convenient for detection, reduces detection time, and the gas detector is not easy to fall.

[0006] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a portable gas detector for coal mine goaf areas, including a detector body and a base, a first support column is fixedly connected to the base, a second support column is slidably connected to the first support column, a third support column is slidably connected to the second support column, a fixing frame is fixedly connected to the back of the detector body, and a fixing plate matching the fixing frame is fixedly connected to the first support column, the second support column and the third support column.

[0007] In one or more embodiments of the present invention, the fixing plates are respectively located at the bottom of the first supporting column, the top of the second supporting column, and the top of the third supporting column.

[0008] In one or more embodiments of the present invention, a first support spring is fixedly connected between the second support column and the bottom wall of the first support column, and a second support spring is fixedly connected between the third support column and the bottom wall of the second support column.

[0009] In one or more embodiments of the utility model, a first fixing hole is formed in the first support column, a first fixing bolt is threadedly connected to the first fixing hole, and a second fixing hole is formed in the second support column, a second fixing hole is threadedly connected to the second fixing bolt.

[0010] In one or more embodiments of the present invention, a plurality of casters are disposed at the bottom of the base, and a push rod is fixedly connected to the base.

[0011] In one or more embodiments of the present invention, the position of the push rod matches the front side of the detector body.

[0012] In one or more embodiments of the present invention, a lighting lamp is disposed on the top of the third supporting column.

[0013] In one or more embodiments of the present invention, a support leg is fixedly connected to the base, and a support plate is fixedly connected to the support leg.

[0014] In one or more embodiments of the present invention, a plurality of magnets are disposed on the support plate.

[0015] In one or more embodiments of the present invention, the support plate is inclined toward the push rod.

[0016] Compared with the prior art, the portable gas detector for coal mine goaf of the utility model can conduct comprehensive detection of gases at different heights in the goaf, is convenient for detection, reduces detection time, and the gas detector is not easy to fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a first-view structural schematic diagram of a portable gas detector for coal mine goaf in one embodiment of the utility model;

[0019] Figure 2 This is a second perspective structural schematic diagram of a portable gas detector for coal mine goaf in one embodiment of the utility model;

[0020] Figure 3 It is a cross-sectional view from a first perspective of a portable gas detector for coal mine goaf in one embodiment of the utility model;

[0021] Figure 4 This is a cross-sectional view from a second viewing angle of a portable gas detector for use in a coal mine goaf in one embodiment of the utility model.

[0022] Description of main reference numerals:

[0023] 11. Base; 12. Casters; 13. Push rod; 21. First support column; 22. Second support column; 23. Third support column; 24. Fixing plate; 25. Detector body; 26. Fixing frame; 31. First support spring; 32. Second support spring; 41. Second fixing hole; 42. Second fixing bolt; 43. First fixing hole; 44. First fixing bolt; 51. Support leg; 52. Support plate; 53. Magnet; 61. Lighting lamp. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] like Figures 1 to 4 As shown, a portable gas detector for coal mine goaf in one embodiment of the utility model includes a detector body 25 and a base 11. A first support column 21 is fixedly connected to the base 11, a second support column 22 is slidably connected in the first support column 21, and a third support column 23 is slidably connected in the second support column 22. A fixing frame 26 is fixedly connected to the back of the detector body 25, and a fixing plate 24 matching the fixing frame 26 is fixedly connected to the first support column 21, the second support column 22 and the third support column 23.

[0026] Specifically, the gas in the coal mine goaf can be detected by the detector body 25, and the detector body 25 can be clamped on the fixing plate 24 through the fixing frame 26 on the back, and the detector body 25 is not easy to fall off from the fixing plate 24. There are three detector bodies 25, and the position of the detector body 25 can be adjusted by the second support column 22 and the third support column 23, so as to facilitate the detection of gas at different heights in the goaf.

[0027] The fixing plates 24 are respectively located at the bottom of the first support column 21, the top of the second support column 22 and the top of the third support column 23. The detector body 25 is located at the bottom of the first support column 21 to detect the gas in the lower layer of the goaf. By adjusting the distance that the second support column 22 extends from the first support column 21 and the distance that the third support column 23 extends from the second support column 22, it is convenient to detect the gas in the upper and middle layers of the goaf. At the same time, the height of the second support column 22 and the third support column 23 can be adjusted according to the height of the mine cave in the goaf to adapt to the mine caves in the goaf with different heights.

[0028] A first support spring 31 is fixedly connected between the second support column 22 and the bottom wall of the first support column 21, and a second support spring 32 is fixedly connected between the third support column 23 and the bottom wall of the second support column 22. The first support spring 31 can play a role in supporting the second support column 22, and the second support spring 32 can play a role in supporting the third support column 23.

[0029] A first fixing hole 43 is provided in the first support column 21, and a first fixing bolt 44 is threadedly connected to the first fixing hole 43. A second fixing hole 41 is provided in the second support column 22, and a second fixing bolt 42 is threadedly connected to the second fixing hole 41. The first fixing bolt 44 can abut against the second support column 22, thereby fixing the second support column 22 in the first support column 21. The second fixing bolt 42 can abut against the third support column 23, thereby fixing the third support column 23 in the second support column 22, so as to facilitate the adjustment of the heights of the second support column 22 and the third support column 23.

[0030] The first support spring 31 and the second support spring 32 support the second support column 22 and the third support column 23, so that the second support column 22 and the third support column 23 can be easily moved. When the first fixing bolt 44 is loosened, the second support column 22 will not drop suddenly, and the second support column 22 or the third support column 23 can be moved downward or upward with little force, so that the inspector can adjust the position of the second support column 22 and the third support column 23 easily.

[0031] A plurality of casters 12 are provided at the bottom of the base 11, and a push rod 13 is fixedly connected to the base 11, so as to facilitate the movement of the detector body 25.

[0032] The position of the push rod 13 matches the front of the detector body 25. The front of the detector body 25 is provided with a display screen and an air inlet, and the gas detection information can be displayed on the display screen. It is convenient for the detection personnel to move the detector body 25 while observing the gas information displayed on the detector body 25.

[0033] A lighting lamp 61 is disposed on the top of the third support column 23. The light underground is relatively dark, and the lighting lamp 61 is used to facilitate observation of the gas detection information displayed on the detector body 25.

[0034] The base 11 is fixedly connected with a support leg 51, and the support leg 51 is fixedly connected with a support plate 52. When performing gas detection, the detection personnel need to record the gas information displayed on the detector body 25 for statistics and comparison. The paper for recording information can be placed on the support plate 52 for easy recording.

[0035] A plurality of magnets 53 are disposed on the support plate 52. The magnets 53 can be adsorbed on the support plate 52, thereby fixing the paper recording information on the support plate 52 for easy recording.

[0036] The support plate 52 is inclined toward the push rod 13. This makes it convenient for the inspector to observe the information on the detector body 25 while recording it on paper.

[0037] When using, refer to Figure 1 to Figure 4 As shown, the detector body 25 is fixed on the first support column 21, the second support column 22 and the third support column 23, and the height of the second support column 22 extending from the first support column 21 and the height of the third support column 23 extending from the second support column 22 are adjusted. Multiple detector bodies 25 can simultaneously detect the gas in the upper layer, middle layer and bottom layer in the goaf. The detector body 25 can be moved by the push rod 13 set on the base 11 and the casters 12 at the bottom of the base 11.

[0038] Compared with the prior art, the portable gas detector for coal mine goaf of the utility model can conduct comprehensive detection of gases at different heights in the goaf, is convenient for detection, reduces detection time, and the gas detector is not easy to fall.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A portable gas detector for coal mine goaf, comprising a detector body and a base, characterized in that: A first support column is fixedly connected to the base, a second support column is slidably connected inside the first support column, a third support column is slidably connected inside the second support column, a fixing frame is fixedly connected to the back of the detector body, and a fixing plate matching the fixing frame is fixedly connected to the first support column, the second support column and the third support column.

2. A portable gas detector for coal mine goaf according to claim 1, characterized in that: The fixing plates are respectively located at the bottom of the first supporting column, the top of the second supporting column and the top of the third supporting column.

3. A portable gas detector for coal mine goaf according to claim 1, characterized in that: A first support spring is fixedly connected between the second support column and the bottom wall of the first support column, and a second support spring is fixedly connected between the third support column and the bottom wall of the second support column.

4. A portable gas detector for coal mine goaf according to claim 1, characterized in that: A first fixing hole is formed in the first support column, and a first fixing bolt is threadedly connected in the first fixing hole. A second fixing hole is formed in the second support column, and a second fixing bolt is threadedly connected in the second fixing hole.

5. A portable gas detector for coal mine goaf according to claim 1, characterized in that: A plurality of casters are arranged at the bottom of the base, and a push rod is fixedly connected to the base.

6. A portable gas detector for coal mine goaf according to claim 5, characterized in that: The position of the push rod matches the front side of the detector body.

7. A portable gas detector for coal mine goaf according to claim 1, characterized in that: A lighting lamp is arranged on the top of the third supporting column.

8. A portable gas detector for coal mine goaf according to claim 1, characterized in that: The base is fixedly connected with a supporting leg, and the supporting leg is fixedly connected with a supporting plate.

9. A portable gas detector for coal mine goaf according to claim 8, characterized in that: A plurality of magnets are arranged on the support plate.

10. A portable gas detector for coal mine goaf according to claim 8, characterized in that: The support plate is inclined toward the push rod.

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