Waterproof and dustproof protection device for mining gas sensor

Abstract

The utility model discloses a waterproof and dustproof protection device of a mining gas sensor. The waterproof and dustproof protection device comprises a shell, a shell cover, a ventilation pipe and a first fan. According to the waterproof and dustproof protection device for the mine gas sensor, a shell cover is fixedly connected with a ventilation pipe in a penetrating mode, the bottom of the ventilation pipe is fixedly connected with two air inlet pipes which are obliquely arranged upwards, the top end of the ventilation pipe is fixedly connected with an air outlet pipe which is obliquely arranged downwards, and a condensation mechanism is arranged on the ventilation pipe and corresponds to the lower portion of the shell cover; a collecting bottle is connected to the bottom end of the ventilation pipe, a first fan is fixedly installed on the inner side of the top end of the ventilation pipe, filtering mechanisms are connected to the ends of the air inlet pipe and the air outlet pipe, and through work of the first fan, air can enter the shell cover from the bottom end of the ventilation pipe and is exhausted from the top end of the ventilation pipe; therefore, the air outside the mine gas sensor always exchanges with the outside, the mine gas sensor can conveniently sense gas leakage in time, and the response efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protection of mine gas sensors, in particular to a waterproof and dustproof protection device for mine gas sensors. Background Art

[0002] As we all know, mining gas sensors are devices used to detect the gas content in the air underground in coal mines. They generally have multiple standard signal output formats. After joint inspection, they can be used in conjunction with coal mine safety monitoring systems, wind power gas locking devices and gas power-off devices. They have been widely used in the field of coal mining.

[0003] The patent document with announcement number CN211927900U discloses a waterproof and dustproof protection device for a mining gas sensor, including a mounting plate and a gas sensor body. The gas sensor body is installed at the right end of the mounting plate; it also includes a protective frame, a switch frame, a sealant frame, two groups of card plates, two groups of upper sliding blocks, two groups of lower sliding blocks, a support frame, absorbent cotton, multiple groups of baffles, two groups of transparent glass plates and a filter cover. The left end of the protective frame is connected to the right end of the mounting plate, and the gas sensor body is located in the protective frame. The top and bottom ends of the right area of ​​the protective frame are provided with sliding grooves, the left end of the filter cover is provided with a filter groove, the right end of the filter groove is penetrated by a filter hole, and a dust filter is provided in the filter hole.

[0004] Although the above-mentioned existing technology has achieved waterproof and dustproof protection for mine gas sensors, during use, the mine gas sensors are isolated by the support frame, water absorption surface and filter cover, resulting in the air near the mine gas sensor being unable to be conveniently exchanged with the external air, affecting the corresponding efficiency of the mine gas sensor. Therefore, a new waterproof and dustproof protection device for mine gas sensors is proposed to optimize the above-mentioned existing technology. Utility Model Content

[0005] The purpose of the present utility model is to provide a waterproof and dustproof protection device for a mine gas sensor to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A waterproof and dustproof protection device for a mine gas sensor comprises a bottom shell, a mine gas sensor is fixedly mounted on the inner side of the bottom shell, an outer cover of the mine gas sensor is provided with a shell cover adapted to the bottom shell, a ventilation pipe is fixedly connected through the shell cover, two air inlet pipes arranged obliquely upward are fixedly connected to the bottom of the ventilation pipe, an air outlet pipe arranged obliquely downward is fixedly connected to the top of the ventilation pipe, a condensation mechanism is provided below the ventilation pipe corresponding to the shell cover, the bottom end of the ventilation pipe is connected to a collecting bottle, a first fan is fixedly mounted on the inner side of the top end of the ventilation pipe, and the ends of the air inlet pipe and the air outlet pipe are both connected to a filtering mechanism.

[0008] As a further solution of the present invention: a fixing hole is provided on the bottom shell, the shell cover is threadedly connected to the bottom shell, an avoidance slot and a wiring hole are provided on the rear surface of the bottom shell, the mine gas sensor is electrically connected to the external monitoring host, an internal thread is provided on the inner side of the shell cover, and an external thread is provided at the opening of the shell cover.

[0009] As a further solution of the present invention: the condensing mechanism includes a first heat-conducting fin, a second heat-conducting fin, a semiconductor refrigeration sheet, an air duct and a second fan.

[0010] As a further solution of the present invention: the first heat-conducting fin is fixedly mounted on the outside of the ventilation duct, the fins of the first heat-conducting fin are inserted into the ventilation duct, the second heat-conducting fins are fixedly mounted on the four sides of the first heat-conducting fins, and the semiconductor refrigeration chip is installed between the first heat-conducting fins and the second heat-conducting fins. The semiconductor refrigeration chip acts as a heat pump to transfer the heat of the first heat-conducting fins to the second heat-conducting fins, thereby forming a low-temperature space at the corresponding position inside the ventilation duct, thereby performing condensation and moisture-proofing. The air duct is L-shaped, and the air duct is fixedly penetrated by the ventilation duct. One end of the air duct is mounted on the outside of the second heat-conducting fin, and the second fan is fixedly connected to the other end of the air duct.

[0011] As a further solution of the present invention: the filtering mechanism includes a shell, one end of the shell is inserted into the corresponding air inlet pipe or air outlet pipe and is threadedly connected to the air inlet pipe and the air outlet pipe, the end of the shell is provided with an external thread, and the inner side of the end of the air inlet pipe and the air outlet pipe is provided with an internal thread, and a filter mesh plate is fixedly connected inside the shell.

[0012] As a further solution of the present invention: the bottle mouth of the collecting bottle is inserted into the bottom end of the ventilation pipe and is threadedly connected to the ventilation pipe. The bottle mouth of the collecting bottle is provided with an external thread, and the inner side of the bottom end of the ventilation pipe is provided with an internal thread.

[0013] As a further solution of the present invention: the first fan, the semiconductor cooling plate and the second fan are all externally connected to a power supply and a switch.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model uses the operation of the first fan to allow air to enter the housing cover from the bottom end of the ventilation pipe and be discharged from the top end of the ventilation pipe, thereby ensuring that the air outside the mine gas sensor is always exchanged with the outside, facilitating timely sensing of gas leakage by the mine gas sensor and improving response efficiency.

[0016] 2. The utility model forms a condensing mechanism through the first heat-conducting fin, the second heat-conducting fin, the semiconductor refrigeration plate, the air duct and the second fan, so as to form a low-temperature condensation area on the ventilation duct, so that the moisture in the air can be condensed into water droplets by condensation. The water droplets drip with gravity, thereby achieving a moisture-proof effect. The air inlet pipe and the air outlet pipe are protected by the filter plate, thereby achieving a dust-proof effect, so that the device has a moisture-proof and dust-proof protection effect.

[0017] 3. The collecting bottle of the utility model is threadedly installed at the bottom end of the ventilation pipe, the shell is threadedly connected to the air inlet pipe and the air outlet pipe, and the shell cover is threadedly installed on the bottom shell. The overall device is an assembled design, which is convenient for cleaning and replacing the filter mechanism and convenient for repairing and maintaining the mine gas sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a structural diagram of a waterproof and dustproof protection device for a mine gas sensor.

[0019] Figure 2 This is a three-dimensional diagram of a waterproof and dustproof protection device for a mining gas sensor.

[0020] Figure 3 The figure is a cross-sectional view of a waterproof and dustproof protection device for a mining gas sensor.

[0021] In the figure: 1. bottom shell; 2. mining gas sensor; 3. shell cover; 4. ventilation pipe; 5. air inlet pipe; 6. air outlet pipe; 7. condensing mechanism; 8. collecting bottle; 9. first fan; 10. filtering mechanism; 11. first heat-conducting fin; 12. second heat-conducting fin; 13. semiconductor cooling plate; 14. air duct; 15. second fan; 16. shell; 17. filter plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 3In an embodiment of the utility model, a waterproof and dustproof protection device for a mine gas sensor includes a bottom shell 1, a mine gas sensor 2 is fixedly installed on the inner side of the bottom shell 1, and an outer cover of the mine gas sensor 2 is provided with a shell cover 3 adapted to the bottom shell 1. A ventilation pipe 4 is fixedly connected to the shell cover 3, and two air inlet pipes 5 arranged obliquely upward are fixedly connected to the bottom of the ventilation pipe 4. An air outlet pipe 6 arranged obliquely downward is fixedly connected to the top of the ventilation pipe 4. A condensing mechanism 7 is provided below the ventilation pipe 4 corresponding to the shell cover 3, and a collecting bottle 8 is connected to the bottom end of the ventilation pipe 4. A first fan 9 is fixedly installed on the inner side of the top end of the ventilation pipe 4, and a filtering mechanism 10 is connected to the ends of the air inlet pipe 5 and the air outlet pipe 6.

[0024] Through the operation of the first fan 9, air can enter the shell cover 3 from the bottom end of the ventilation pipe 4 and be discharged from the top end of the ventilation pipe 4, so that the air outside the mine gas sensor 2 always forms an exchange effect with the outside, which facilitates the mine gas sensor 2 to sense gas leakage in time and improves the response efficiency.

[0025] A fixing hole is provided on the bottom shell 1, the shell cover 3 is threadedly connected to the bottom shell 1, an avoidance slot and a wiring hole are provided on the rear surface of the bottom shell 1, the mining gas sensor 2 is electrically connected to the external monitoring host, an internal thread is provided on the inner side of the shell cover 3, and an external thread is provided at the opening of the shell cover 1.

[0026] The condensing mechanism 7 includes a first heat-conducting fin 11 , a second heat-conducting fin 12 , a semiconductor cooling fin 13 , an air duct 14 and a second fan 15 .

[0027] The first heat-conducting fin 11 is fixedly mounted on the outside of the ventilation duct 4. The fins of the first heat-conducting fin 11 are inserted into the ventilation duct 4. The second heat-conducting fin 12 is fixedly mounted on the four sides of the first heat-conducting fin 11. The semiconductor refrigeration chip 13 is installed between the first heat-conducting fin 11 and the second heat-conducting fin 12. The semiconductor refrigeration chip 13 acts as a heat pump to transfer the heat of the first heat-conducting fin 11 to the second heat-conducting fin 12, thereby forming a low-temperature space at the corresponding position inside the ventilation duct 4, thereby performing condensation and moisture-proofing. The air duct 14 is L-shaped. The air duct 14 is fixedly penetrated by the ventilation duct 4. One end of the air duct 14 is mounted on the outside of the second heat-conducting fin 12. The second fan 15 is fixedly connected to the other end of the air duct 14.

[0028] The filtering mechanism 10 includes a shell 16, one end of which is inserted into the corresponding air inlet pipe 5 or air outlet pipe 6 and is threadedly connected to the air inlet pipe 5 and the air outlet pipe 6. The end of the shell 16 is provided with an external thread, and the inner side of the end of the air inlet pipe 5 and the air outlet pipe 6 is provided with an internal thread. A filter mesh plate 17 is fixedly connected to the shell 16.

[0029] The condensation mechanism 7 is composed of the first heat-conducting fins 11, the second heat-conducting fins 12, the semiconductor refrigeration plate 13, the air duct 14 and the second fan 15, and a low-temperature condensation area is formed on the ventilation pipe 4, so that the moisture in the air can be condensed into water droplets by condensation. The water droplets drip due to gravity, thereby having a moisture-proof effect. The air inlet pipe 5 and the air outlet pipe 6 are protected by the filter plate 17, thereby having a dust-proof effect, so that the device has a moisture-proof and dust-proof protection effect.

[0030] The air inlet pipe 5 is tilted upward, thereby preventing condensed water from flowing out through the air inlet pipe 5 and facilitating the collection of the condensed water by the collecting bottle 8 .

[0031] The air outlet pipe 6 is tilted downward to prevent external water mist from directly flowing into the ventilation pipe through the air outlet pipe 6 and causing water to enter the shell cover 3, thereby achieving a waterproof effect.

[0032] The mouth of the collecting bottle 8 is inserted into the bottom end of the ventilation tube 4 and is threadedly connected to the ventilation tube 4 . The mouth of the collecting bottle 8 is provided with an external thread, and the inner side of the bottom end of the ventilation tube 4 is provided with an internal thread.

[0033] The collecting bottle 8 is threadedly mounted on the bottom end of the ventilation pipe 4, the shell 16 is threadedly connected to the air inlet pipe 5 and the air outlet pipe 6, and the shell cover 2 is threadedly mounted on the bottom shell 1. The overall device is of assembled design, which makes it convenient to clean and replace the filter mechanism 10, and to inspect and maintain the mining gas sensor 2.

[0034] The first fan 9, the semiconductor cooling plate 13 and the second fan 15 are all externally connected to a power supply and a switch.

[0035] The working principle of this utility model is:

[0036] When in use, first fix the mining gas sensor 2 through the bottom shell 1, screw the shell cover 3 on the bottom shell 1, so that the ventilation pipe 4 is vertically upward, and then screw the shell 16 on the air inlet pipe 5 and the air outlet pipe 6, screw the collecting bottle 8 on the bottom end of the ventilation pipe 4, start the first fan 9, the second fan 15 and the semiconductor refrigeration plate 13, and the semiconductor refrigeration plate 13 acts as a heat pump to transfer the heat of the first heat-conducting fin 11 to the second heat-conducting fin 12, so that a low-temperature space is formed at the corresponding position inside the ventilation pipe 4, and the second fan 15 is used to heat the second heat-conducting fin 11 through the air duct 14. The thermal fins 12 continuously dissipate heat to maintain the working effect of the semiconductor refrigeration plate 13. At this time, under the action of the first fan 9, the air enters the ventilation pipe 4 through the air inlet pipe 5 and is then discharged from the air outlet pipe 6. When the air enters, it is filtered by the filter plate 17 to prevent dust from entering. At the same time, when the air passes through the position of the first thermal fin 11, it is condensed, so that the water vapor in the air condenses into water droplets and falls. The dripping water is collected by the collection bottle 8, so that the air inside the shell cover 3 is always exchanged with the outside, which is convenient for the mine gas sensor 2 to sense gas leakage in time.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A waterproof and dustproof protective device for a mine gas sensor, comprising a bottom shell (1), characterized in that: A mining gas sensor (2) is fixedly installed on the inner side of the bottom shell (1), and a shell cover (3) adapted to the bottom shell (1) is provided on the outer side of the mining gas sensor (2). A ventilation pipe (4) is fixedly connected to the shell cover (3). Two air inlet pipes (5) arranged obliquely upward are fixedly connected to the bottom of the ventilation pipe (4), and an air outlet pipe (6) arranged obliquely downward is fixedly connected to the top of the ventilation pipe (4). A condensing mechanism (7) is provided below the ventilation pipe (4) corresponding to the shell cover (3). The bottom end of the ventilation pipe (4) is connected to a collecting bottle (8), and a first fan (9) is fixedly installed on the inner side of the top end of the ventilation pipe (4). The ends of the air inlet pipe (5) and the air outlet pipe (6) are both connected to a filtering mechanism (10).

2. The waterproof and dustproof protective device for a mining gas sensor according to claim 1, characterized in that: A fixing hole is provided on the bottom shell (1), and the shell cover (3) is threadedly connected to the bottom shell (1).

3. The waterproof and dustproof protective device for a mining gas sensor according to claim 1, characterized in that: The condensing mechanism (7) comprises a first heat-conducting fin (11), a second heat-conducting fin (12), a semiconductor refrigeration plate (13), an air duct (14) and a second fan (15).

4. The waterproof and dustproof protective device for a mining gas sensor according to claim 3, characterized in that: The first heat-conducting fin (11) is fixedly sleeved on the outside of the ventilation pipe (4). The fins of the first heat-conducting fin (11) are inserted into the ventilation pipe (4). The second heat-conducting fin (12) is fixedly installed on the four sides of the first heat-conducting fin (11). The semiconductor refrigeration plate (13) is installed between the first heat-conducting fin (11) and the second heat-conducting fin (12). The air duct (14) is L-shaped. The air duct (14) is fixedly penetrated by the ventilation pipe (4). One end of the air duct (14) is sleeved on the outside of the second heat-conducting fin (12). The second fan (15) is fixedly connected to the other end of the air duct (14).

5. The waterproof and dustproof protective device for a mining gas sensor according to claim 1, characterized in that: The filtering mechanism (10) comprises a housing (16), one end of which is inserted into the corresponding air inlet pipe (5) or air outlet pipe (6) and is threadedly connected to the air inlet pipe (5) and the air outlet pipe (6), and a filter screen (17) is fixedly connected inside the housing (16).

6. The waterproof and dustproof protective device for a mining gas sensor according to claim 1, characterized in that: The mouth of the collecting bottle (8) is inserted into the bottom end of the ventilation pipe (4) and is threadedly connected to the ventilation pipe (4).

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