Mining methane sensor probe waterproof structure

Abstract

The utility model discloses a waterproof structure of a mining methane sensor probe, which belongs to the technical field of gas monitoring sensors and comprises a gas inlet chamber, a water retaining cover, a mounting frame and a drainage runner, the gas inlet chamber is arranged on a mining methane sensor, and the probe is mounted in the gas inlet chamber; the water retaining cover is arranged at the air inlet end of the air inlet chamber; a waterproof breathable film is arranged in the mounting frame; the drainage runner is formed in the bottom of the air inlet chamber. The waterproof breathable film is designed in the gas inlet chamber, the waterproof breathable film has waterproof and breathable functions, external water vapor can be prevented from being in contact with the probe, normal detection of methane gas by the probe is not affected, the waterproof cover can block splashing water when equipment is washed, the splashing water can be repeatedly blocked by the water blocking grids, and the water blocking effect is good. The water is prevented from being directly splashed onto the waterproof breathable film, and the drainage channel arranged in the air inlet chamber can discharge the permeated underground water or splashed water out of the air inlet chamber, so that the normal work of the probe is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of gas monitoring sensor technology, specifically to a waterproof structure for a methane sensor probe used in mining. Background Technology

[0002] Methane sensors for mining are devices used in mines to monitor methane levels. Mine conditions are complex, with potential groundwater seepage or water ingress into the sensor probe due to equipment washing, high humidity, or other factors. For catalytic combustion methane sensors, moisture can coat the catalyst surface, leading to decreased sensitivity or complete failure. Therefore, a waterproof structure for the probe is necessary to prevent water ingress and maintain monitoring sensitivity. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a waterproof structure for a mine methane sensor probe. By setting up a water-blocking cover and a waterproof and breathable membrane, the water vapor entering the depths of the air inlet chamber is significantly reduced, thus preventing water from entering the probe.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This utility model provides a waterproof structure for a mine methane sensor probe, comprising:

[0005] An air inlet chamber is provided on a mining methane sensor, and the probe is installed inside the air inlet chamber.

[0006] A water baffle is installed at the air inlet end of the air inlet chamber, and a plurality of water baffle grids are provided inside the water baffle.

[0007] The mounting frame is ring-shaped and has a waterproof and breathable membrane inside. The mounting frame is located in the air inlet chamber between the water shield and the probe.

[0008] A drainage channel, located at the bottom of the air intake chamber, is used to drain water that has entered the air intake chamber.

[0009] Preferably, the water-blocking cover includes:

[0010] A cylindrical body, wherein the cylindrical body is disposed at the air inlet end of the air inlet chamber;

[0011] A water baffle is threaded onto the end of the cylinder, and an air inlet is provided on the water baffle.

[0012] Preferably, the water-blocking grid comprises:

[0013] A ring body, which is threadedly installed inside the cylinder;

[0014] Multiple parallel baffles are fixed at an angle to the inside of the ring.

[0015] Preferably, the bottom edge of the upper stop bar in two adjacent stop bars is lower than the top edge of the lower stop bar.

[0016] Preferably, two positioning holes are provided on the end face of the ring.

[0017] Preferably, the baffles in two adjacent water-blocking grids are oriented in opposite directions.

[0018] Preferably, the air intake end of the air intake chamber is provided with a step, and a dustproof net is provided on the step. The water baffle is threadedly installed on the air intake end of the air intake chamber and abuts the dustproof net against the step.

[0019] Preferably, the mounting frame includes a first annular frame and a second annular frame. The first annular frame has a groove, and the edge of the waterproof and breathable membrane abuts in the groove. The second annular frame is threadedly installed inside the first annular frame and abuts against the waterproof and breathable membrane.

[0020] Preferably, the bottom of the air intake chamber is inclined, and the bottom of the end of the air intake chamber near the probe is higher than the bottom of the end near the air intake.

[0021] Preferably, a water baffle is provided in the air intake chamber, which is located between the water baffle cover and the mounting frame to prevent accumulated water from flowing towards the waterproof and breathable membrane.

[0022] The beneficial effects of this utility model are as follows:

[0023] This invention features an installation frame within the air inlet chamber for fixing a waterproof and breathable membrane. The membrane is both waterproof and breathable, preventing external moisture from contacting the probe while maintaining normal methane gas detection. A waterproof cover at the air inlet end of the chamber blocks splashing water during equipment washing. The splashing water is repeatedly blocked by multiple water-blocking grids, preventing direct contact with the membrane. A drainage channel within the air inlet chamber drains any infiltrated groundwater or splashing water, ultimately providing waterproof protection for the probe and ensuring its normal operation. Multiple water-blocking grids and baffles buffer and reflect splashing water, effectively intercepting it and preventing it from reaching the membrane. A dust filter filters the air entering the air inlet chamber, reducing dust accumulation deep within the chamber. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A perspective view of a waterproof structure for a mining methane sensor probe provided in an embodiment of this utility model.

[0026] Figure 2 This is a front view of the present invention.

[0027] Figure 3 This is a top view of the present invention.

[0028] Figure 4 for Figure 3 Sectional view at point AA.

[0029] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0030] Figure 6 for Figure 5 A magnified view of a section at point B.

[0031] Figure 7 This is a schematic diagram of the waterproof channel and water baffle in this utility model.

[0032] Figure 8 This is a perspective view of the water-blocking grid in this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Mine methane sensor, 2. Inlet chamber, 21. Step, 22. Dustproof net, 3. Probe, 4. Water baffle, 41. Cylinder, 42. Water baffle cover, 43. Air inlet, 5. Water baffle grid, 51. Ring body, 52. Baffle strip, 521. Bottom edge, 522. High edge, 53. Positioning hole, 6. Mounting frame, 61. First annular frame, 62. Second annular frame, 7. Waterproof and breathable membrane, 8. Drainage channel, 9. Water baffle plate. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Example 1:

[0037] like Figures 1 to 8As shown, Embodiment 1 of this utility model provides a waterproof structure for the probe 3 of a mining methane sensor 1. This structure is installed on the mining methane sensor 1 to prevent water from entering the probe 3. Specifically, it includes an air inlet chamber 2 on the mining methane sensor 1, a water-blocking cover 4 at the air inlet end of the air inlet chamber 2, a mounting frame 6 inside the air inlet chamber 2, and a drainage channel 8 at the bottom of the air inlet chamber 2. Figure 5 As shown, the air intake chamber 2 is funnel-shaped, and the probe 3 is installed at the deepest part of the air intake chamber 2. The air intake end of the air intake chamber 2 is threaded, and the water baffle 4 includes a cylindrical body 41 threaded onto the air intake end and a water baffle 42 threaded onto the cylindrical body 41. The water baffle 42 is a circular cover with a semi-circular air intake 43 on it, through which outside air can enter the air intake chamber 2 and eventually come into contact with the probe 3.

[0038] like Figures 5 to 8 As shown, the water-blocking cover 4 is provided with four water-blocking grids 5. Each water-blocking grid 5 includes a ring 51 threaded into the cylinder 41 and multiple parallel baffles 52 fixed to the inner wall of the ring 51. The baffles 52 are inclined, and in the same water-blocking grid 5, the bottom edge 521 of the upper baffle 52 is lower than the high edge 522 of the lower baffle 52. In this way, when the mixed airflow containing water vapor flows through the water-blocking grid 5, it will be guided and buffered by the baffles 52. The airflow is turned and the water vapor in the airflow hits the baffles 52 and liquefies, thereby intercepting the water vapor.

[0039] like Figure 8 As shown, two positioning holes 53 are provided on the ring 51, which facilitates the user to insert a tool into the positioning holes 53 and rotate the ring 51, thereby rotating the ring 51 into the cylinder 41. Figure 5 and Figure 6 As shown, four water-blocking grids 5 are sequentially threaded into the cylinder 41, and the baffles 52 in two adjacent water-blocking grids 5 face opposite directions. This further increases the number of turns of the mixed airflow, increases the probability of water vapor being intercepted, and reduces the possibility of water vapor entering the depth of the air intake chamber 2.

[0040] The mounting frame 6 is generally annular, comprising a first annular frame 61 and a second annular frame 62. The first annular frame 61 has a groove around its edge, and the waterproof and breathable membrane 7 is circular, with its edge resting within the groove. The second annular frame 62 is threaded into the first annular frame 61, clamping the waterproof and breathable membrane 7 against the groove wall, thus installing the waterproof and breathable membrane 7 onto the mounting frame 6. The first annular frame 61 can be fixed to the air inlet chamber 2 by adhesive. Figure 5 As shown, since the mounting frame 6 is located in the air inlet chamber 2 between the water shield 4 and the probe 3, the waterproof and breathable membrane 7 can isolate water vapor, preventing water vapor from reaching the position of the probe 3. Since the waterproof and breathable membrane 7 is breathable, it does not affect the contact between the outside gas and the probe 3.

[0041] The drainage channel 8 allows some of the water that passes through the water-blocking grid 5 to be discharged from the air intake chamber 2, thereby preventing water accumulation in the air intake chamber 2. Figure 5 As shown, since the air intake chamber 2 is funnel-shaped with an inclined bottom and the bottom of the end near the probe 3 is higher than the bottom of the end near the air intake, it is more conducive to the water entering the air intake chamber 2 being discharged from the drain channel 8.

[0042] With the above configuration, the waterproof cover, as the initial water-blocking structure, can block most of the splashing water. Some splashing water enters from the air inlet 43 and splashes onto the water-blocking grid 5. The water-air mixed airflow passes through the buffer and guidance of multiple water-blocking grids 5, where the water vapor is blocked by the baffle strips 52. When the airflow containing a small amount of water vapor passes through the waterproof and breathable membrane 7, only the gas can pass through and contact the probe 3. Therefore, this solution can effectively protect the probe 3, prevent water from entering the probe 3, and ensure the normal operation of the probe 3.

[0043] Example 2:

[0044] like Figure 5 As shown, based on Embodiment 1, Embodiment 2 of this utility model provides a step 21 at the air intake end of the air intake chamber 2, and a metal dustproof net 22 is provided on the step 21. The water baffle 4 is threadedly installed at the air intake end of the air intake chamber 2 and abuts the dustproof net 22 against the step 21 to complete the fixation of the dustproof net 22. In this way, when the airflow passing through the water baffle 5 passes through the dustproof net 22, the dust in it will be filtered, reducing the amount of dust entering the depth of the air intake chamber 2 and avoiding the dust from affecting the probe 3.

[0045] Example 3:

[0046] Based on Embodiments 1 and 2, this utility model proposes Embodiment 3. A water baffle 9 is provided in the air intake chamber 2 between the water baffle 4 and the mounting frame 6. The water baffle 9 is semi-circular, with space left above for airflow, and fixed to the inner wall of the air intake chamber 2 below. The function of the water baffle 9 is to prevent accumulated water from flowing towards the waterproof and breathable membrane 7. Even if some water passes through the water baffle grid 5, it will be blocked by the water baffle 9, further improving the waterproof effect.

[0047] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A waterproof structure for a mine methane sensor probe, characterized in that, include: An air inlet chamber is provided on a mining methane sensor, and the probe is installed inside the air inlet chamber. A water baffle is installed at the air inlet end of the air inlet chamber, and a plurality of water baffle grids are provided inside the water baffle. The mounting frame is ring-shaped and has a waterproof and breathable membrane inside. The mounting frame is located in the air inlet chamber between the water shield and the probe. A drainage channel, located at the bottom of the air intake chamber, is used to drain water that has entered the air intake chamber.

2. The waterproof structure of a mining methane sensor probe as described in claim 1, characterized in that, The water-blocking cover includes: A cylindrical body, wherein the cylindrical body is disposed at the air inlet end of the air inlet chamber; A water baffle is threaded onto the end of the cylinder, and an air inlet is provided on the water baffle.

3. The waterproof structure of a mining methane sensor probe as described in claim 2, characterized in that, The water-blocking grid includes: A ring body, which is threadedly installed inside the cylinder; Multiple parallel baffles are fixed at an angle to the inside of the ring.

4. The waterproof structure of a mining methane sensor probe as described in claim 3, characterized in that, In a pair of adjacent retaining bars, the bottom edge of the upper retaining bar is lower than the top edge of the lower retaining bar.

5. The waterproof structure of a mining methane sensor probe as described in claim 3, characterized in that, Two positioning holes are provided on the end face of the ring.

6. The waterproof structure of a mining methane sensor probe as described in claim 3, characterized in that, The baffles in two adjacent water-blocking grids face opposite directions.

7. The waterproof structure of a mining methane sensor probe as described in claim 1, characterized in that, The air intake end of the air intake chamber is provided with a step, and a dustproof net is provided on the step. The water baffle is threadedly installed on the air intake end of the air intake chamber and abuts the dustproof net against the step.

8. The waterproof structure of a mining methane sensor probe as described in claim 1, characterized in that, The mounting frame includes a first annular frame and a second annular frame. The first annular frame has a groove, and the edge of the waterproof and breathable membrane abuts against the groove. The second annular frame is threadedly installed inside the first annular frame and abuts against the waterproof and breathable membrane.

9. The waterproof structure of a mining methane sensor probe as described in claim 1, characterized in that, The bottom of the air intake chamber is inclined, and the bottom of the end of the air intake chamber near the probe is higher than the bottom of the end near the air intake.

10. The waterproof structure of a mining methane sensor probe as described in claim 1, characterized in that, A water baffle is installed in the air intake chamber. The water baffle is located between the water baffle cover and the mounting frame and is used to prevent accumulated water from flowing to the waterproof and breathable membrane.

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