Methane sensor probe

Abstract

The utility model discloses a methane sensor probe, which belongs to the technical field of gas sensors, and comprises a base shell, a gas sensor, a gas sensor, a gas sensor, a gas sensor and a gas sensor, one end of the housing is arranged on the base shell in a sleeving manner, and a protective screen plate is fixed at the other end of the housing; and the waterproof assembly comprises a supporting shell and a waterproof breathable film. According to the utility model, the waterproof component is designed, and the waterproof breathable film in the waterproof component can effectively block external moisture, so that a detection element circuit board in the probe is prevented from being affected with damp; meanwhile, honeycomb through holes are formed in a honeycomb plate mounted in the base shell, the honeycomb through holes can be communicated with outside air and the waterproof breathable film, and the long and narrow honeycomb through holes can also keep the stability of the air entering the honeycomb through holes, so that methane in the air can react in a relatively stable airflow environment, and the detection effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas sensor technology, specifically to a methane sensor probe. Background Technology

[0002] Methane sensor probes are crucial equipment in the field of gas detection, widely used in various industries such as coal mining, chemical engineering, and environmental protection to monitor methane gas concentration in real time, ensuring production safety and environmental protection. However, in practical applications, methane sensor probes face several challenges, especially under harsh environmental conditions such as high humidity, dust, and corrosive gases. These environmental factors can adversely affect the performance and lifespan of the probes. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a methane sensor probe that is waterproof and moisture-proof while maintaining good air permeability.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a methane sensor probe, comprising:

[0005] A base shell, one end of which is closed, and a detection element circuit board is installed at the other end;

[0006] The cover is fitted onto the base shell at one end and a protective mesh plate is fixed at the other end.

[0007] A waterproof assembly includes a support shell and a waterproof and breathable membrane. The support shell is disposed on a base shell and covers the circuit board of the detection element. The support shell has ventilation holes. The waterproof and breathable membrane covers the side of the support shell away from the circuit board of the detection element.

[0008] A honeycomb panel is fixed on a cover between a protective mesh panel and a waterproof and breathable membrane. The honeycomb holes on the honeycomb panel connect the waterproof and breathable membrane with the outside air.

[0009] Preferably, the portion of the support shell covering the circuit board of the detection element is a raised curved surface.

[0010] Preferably, a relief groove is provided at one end of the honeycomb panel near the waterproof and breathable membrane, and a breathable gap is left between the groove wall and the waterproof and breathable membrane.

[0011] Preferably, the cover is provided with an inner convex edge, which, together with the edge of the base shell, fixes the edge of the waterproof and breathable membrane.

[0012] Preferably, a sealing ring is provided between the inner convex edge and the edge of the base shell.

[0013] Preferably, a positioning platform is provided at one end of the base shell located inside the cover, and multiple positioning holes are provided on the positioning platform. The detection element circuit board is fixed to the positioning platform by screws passing through the positioning holes.

[0014] Preferably, the support shell and the base shell are engaged in a snap-fit ​​connection.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention features a waterproof component. The waterproof and breathable membrane within the component effectively blocks external moisture, preventing the circuit board of the detection element in the probe from getting damp. Simultaneously, honeycomb through-holes are formed on the honeycomb plate installed in the base shell, allowing communication between the outside air and the waterproof and breathable membrane. The elongated honeycomb through-holes also maintain the stability of the air entering the membrane, enabling methane in the air to react in a relatively stable airflow environment, thus improving detection efficiency. The curved shape of the waterproof and breathable membrane provides a larger contact area, increasing air exchange and promoting the detection reaction. Since methane sensor probes are typically installed using a suspended method, the curved shape of the waterproof and breathable membrane allows moisture to more easily collect and fall off, preventing water droplets from blocking air intake and affecting detection. Attached Figure Description

[0017] 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.

[0018] Figure 1 A perspective view of a methane sensor probe provided for an embodiment of this utility model.

[0019] Figure 2 This is a top-view perspective view of the cover and honeycomb panel of this utility model.

[0020] Figure 3 This is a bottom perspective view of the cover and honeycomb panel of this utility model.

[0021] Figure 4 This is a perspective view of the base shell and support shell of this utility model.

[0022] Figure 5 This is a bottom view of the present invention.

[0023] Figure 6 for Figure 5 Sectional view at point AA.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Base shell, 2. Circuit board for detection components, 3. Cover shell, 4. Protective mesh plate, 5. Support shell, 6. Waterproof and breathable membrane, 7. Ventilation hole, 8. Honeycomb plate, 9. Relief groove, 10. Inner convex edge, 11. Sealing ring, 12. Positioning platform, 13. Card slot, 14. Card. Detailed Implementation

[0026] 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.

[0027] Example 1:

[0028] like Figures 1 to 6 As shown, Embodiment 1 of this utility model provides a methane sensor probe, mainly including a base shell 1, a cover shell 3, a detection element circuit board 2, and a waterproof assembly. The detection element circuit board 2 is a component found in existing methane sensors; when it comes into contact with methane in the air, it generates an electrical signal to detect methane.

[0029] like Figure 6 As shown, one end of the base shell 1 is closed for connection to a wall or other equipment, while the other end has space reserved for installing the detection element circuit board 2 and connecting lines. The cover 3 is fitted onto the base shell 1 and threaded into it. At the end of the base shell 1 located inside the cover 3, a positioning platform 12 is fixed, with four positioning holes. The detection element circuit board 2 is fixed to the positioning platform 12 by screws passing through the positioning holes, ensuring the stability of the connection between the detection element circuit board 2 and the base shell 1, while also preventing water ingress at the closed end. A connecting wire extends from one side of the base shell 1, electrically connecting to the detection element circuit board 2 and sealing it with the base shell 1.

[0030] The cover 3 is designed with an inner diameter that matches the base shell 1 at one end, so that the cover 3 is tightly fitted onto the base shell 1 by threads. The other end of the cover 3 is fixed with a protective mesh plate 4. The presence of the protective mesh plate 4 effectively prevents large particles or insects from entering the probe and damaging the internal components. Air can easily pass through the protective mesh plate 4 and flow to the circuit board 2 of the detection element.

[0031] The waterproof component of this utility model includes a support shell 5 and a waterproof and breathable membrane 6. For example... Figure 6As shown, a slot 13 is provided on the bottom inner wall of the support shell 5, and a card 14 is fixed on one end of the base shell 1 near the support shell 5. The card 14 has a protrusion, and the base shell 1 also has a step. The bottom of the support shell 5 can be inserted between the step and the card 14 and abut against the base shell 1, while the protrusion of the card 14 is fastened in the slot 13, forming a limit on the support shell 5, so that the support shell 5 can be snapped onto the base shell 1.

[0032] like Figure 4 As shown, the support shell 5 covers the detection element circuit board 2, providing support for the waterproof and breathable membrane 6. The waterproof and breathable membrane 6 can cover the side of the support shell 5 away from the detection element circuit board 2. Ventilation holes 7 are opened on the support shell 5, allowing outside air to pass through the waterproof and breathable membrane 6 and the ventilation holes 7, contacting the detection element circuit board 2 for methane detection. The waterproof and breathable membrane 6 effectively blocks moisture while ensuring gas flow, thus maintaining stable humidity inside the probe and preventing water ingress and moisture damage to the detection element circuit board 2.

[0033] The honeycomb panel 8 is fixed on the cover 3 between the protective mesh panel 4 and the waterproof and breathable membrane 6. The honeycomb through-hole design on it allows the waterproof and breathable membrane 6 to maintain unobstructed communication with the outside air. At the same time, its narrow channel can increase the stability of airflow, making the contact between the air passing through the honeycomb through-hole and the waterproof and breathable membrane 6 more stable, further ensuring the gas exchange efficiency inside the probe.

[0034] Example 2:

[0035] Based on Embodiment 1, to further optimize the performance of the methane sensor probe, this invention designs the portion of the support shell 5 covering the circuit board 2 of the detection element as a raised curved surface. This design increases the surface area of ​​the waterproof and breathable membrane 6, thereby improving air permeability and enhancing the sensitivity of the methane sensor while maintaining waterproofing.

[0036] In addition, a relief groove 9 is provided at one end of the honeycomb panel 8 near the waterproof and breathable membrane 6. The shape of the relief groove 9 is adapted to the curved shape of the support shell 5. At the same time, a breathable gap is left between the groove wall of the relief groove 9 and the waterproof and breathable membrane 6. This design allows the gas passing through the honeycomb holes to circulate freely on the surface of the waterproof and breathable membrane 6.

[0037] Example 3:

[0038] Based on the above embodiments, such as Figure 6As shown, this invention also features an inner protruding edge 10 on the inner wall of the housing 3. When the housing 3 is threaded onto the base housing 1, the inner protruding edge 10 engages with the edge of the base housing 1 to firmly secure the edge of the waterproof and breathable membrane 6. Simultaneously, a sealing ring 11 is provided between the inner protruding edge 10 and the edge of the base housing 1. The inner protruding edge 10 presses the sealing ring 11 and the waterproof and breathable membrane 6 together against the edge of the base housing 1, further enhancing the probe's waterproof performance.

[0039] 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 methane sensor probe, characterized in that, include: The base shell (1) is closed at one end and a detection element circuit board (2) is installed at the other end. Cover (3), one end of the cover (3) is fitted onto the base shell (1), and the other end is fixed with a protective mesh plate (4). A waterproof assembly, comprising a support shell (5) and a waterproof and breathable membrane (6), wherein the support shell (5) is disposed on the base shell (1) and covers the detection element circuit board (2), and the support shell (5) has a vent hole (7), and the waterproof and breathable membrane (6) covers the side of the support shell (5) away from the detection element circuit board (2). The honeycomb panel (8) is fixed on the cover (3) between the protective mesh (4) and the waterproof and breathable membrane (6). The honeycomb through holes on the honeycomb panel (8) connect the waterproof and breathable membrane (6) with the outside air.

2. The methane sensor probe as described in claim 1, characterized in that, The portion of the support shell (5) covering the circuit board (2) of the detection element is a raised curved surface.

3. A methane sensor probe as described in claim 1, characterized in that, The honeycomb panel (8) has a relief groove (9) at one end near the waterproof and breathable membrane (6), and there is a breathable gap between the groove wall of the relief groove (9) and the waterproof and breathable membrane (6).

4. A methane sensor probe as described in claim 1, characterized in that, The cover (3) is provided with an inner protruding edge (10), which, together with the edge of the base shell (1), fixes the edge of the waterproof and breathable membrane (6).

5. A methane sensor probe as described in claim 4, characterized in that, A sealing ring (11) is provided between the inner convex edge (10) and the edge of the base shell (1).

6. A methane sensor probe as described in claim 1, characterized in that, The base shell (1) is provided with a positioning platform (12) at one end inside the cover shell (3). The positioning platform (12) has multiple positioning holes. The detection element circuit board (2) is fixed to the positioning platform (12) by screws passing through the positioning holes.

7. A methane sensor probe as described in claim 1, characterized in that, The support shell (5) and the base shell (1) are engaged.

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