Methane sensor probe protection structure

Abstract

The utility model discloses a methane sensor probe protection structure, which belongs to the technical field of methane sensors and comprises a probe body fixedly provided with a fixing plate. The fixed cover is connected to the fixed plate in a sleeving manner; the protective sleeve sleeves the outer side of the probe body and is in threaded connection with the fixed cover; wherein air enters the protective sleeve through the lower end of the protective sleeve and is exhausted from the upper end of the protective sleeve, the outer side of the upper end of the protective sleeve is fixedly sleeved with a fixing ring, the outer ring face of the fixing ring is provided with an external thread matched with the fixing cover, the protective sleeve is of a cylinder structure with the two ends communicated, and a plurality of notches are formed in the upper end of the protective sleeve. According to the utility model, the protective sleeve and the fixed cover are matched with each other to protect the probe, and air can enter from the lower end of the probe and is discharged from the upper end of the probe, so that the smooth flow of the air is ensured, and the detection precision is improved.

Description

Technical Field

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

[0002] Methane detection equipment is commonly used in industrial safety monitoring. Currently, most methane detection equipment suffers from the following problems during use: insufficient protection of the methane detection probe. Traditional probes are mostly open-mounted, lacking an overall protective structure, making them susceptible to environmental corrosion, mechanical impact, and dust intrusion, leading to decreased probe sensitivity or damage, thus affecting detection accuracy. While some devices incorporate protective mechanisms on the outside of the probe, most of these mechanisms completely enclose it. During detection, the probe relies heavily on natural air convection, which results in low airflow circulation efficiency and delayed detection response. Especially in confined or dusty environments, dust easily accumulates and clogs the probe surface, affecting methane molecule diffusion efficiency and reducing detection accuracy. To address these issues, this invention provides a protective structure for a methane sensor probe. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a protective structure for a methane sensor probe. The protective sleeve and the fixing cover work together to protect the probe, and air can enter from the bottom of the probe and exit from the top, ensuring smooth airflow and improving detection accuracy.

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

[0005] The probe body has a fixing plate fixedly mounted on it.

[0006] A fixing cover, which is fitted onto a fixing plate;

[0007] A protective sleeve is fitted onto the outside of the probe body and threadedly connected to the fixing cover;

[0008] Air enters the interior of the protective sleeve through the lower end and exits from the upper end.

[0009] Preferably, a fixing ring is fixedly sleeved on the outer side of the upper end of the protective sleeve, and the outer ring surface of the fixing ring is provided with an external thread that is compatible with the fixing cover.

[0010] Preferably, the protective sleeve is a cylindrical structure with both ends open, and the upper end of the protective sleeve has multiple notches, while the fixing ring has multiple through holes.

[0011] Preferably, a fan is installed at the lower opening of the protective sleeve.

[0012] Preferably, a protective net is installed at the lower opening of the protective sleeve.

[0013] Preferably, the protective net is in the shape of a concave arch.

[0014] Preferably, the protective net is located above the fan.

[0015] Preferably, a one-way exhaust valve body is installed below each of the through-holes and on the lower side of the fixing ring.

[0016] Preferably, the valve body is a spring plate with a protruding plate on one side, which is fixedly connected to the lower side of the fixing ring. The valve body fits against the lower side of the fixing ring under its own elastic force.

[0017] Preferably, a rubber sealing ring is fixedly connected to the inner side of the upper end of the fixing cover, and a sealing groove adapted to the rubber sealing ring is provided on the fixing plate.

[0018] The beneficial effects of this utility model are as follows:

[0019] This invention utilizes a fan mounted at the lower end of the protective sleeve and a recessed, arched protective mesh to form an active airflow circulation system. This design, with its bottom-intake and top-exhaust directional airflow path, effectively improves the air exchange efficiency inside the protective sleeve, ensuring the probe maintains stable gas sampling capabilities even under complex operating conditions. Particularly in dusty environments such as mines, the protective mesh filters airborne dust, reducing the risk of probe contamination. Furthermore, the recessed, arched shape of the mesh disperses and guides airflow, resulting in more even contact between the air and the probe, further enhancing detection accuracy.

[0020] This invention, through the setting of a fixing cover and a protective sleeve, can surround the probe body, thereby protecting the probe body. If the probe body is damaged by impact, the valve body can prevent external impurities from entering the interior of the protective sleeve without affecting airflow, thus preventing them from affecting the detection of the probe body. The setting of rubber sealing ring and sealing groove can make the fixing plate and fixing cover fit more tightly, thereby improving the protection effect of the probe. Attached Figure Description

[0021] 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.

[0022] Figure 1 A schematic diagram (first view) of a methane sensor probe protection structure provided for an embodiment of this utility model.

[0023] Figure 2 A schematic diagram (second view) of a methane sensor probe protection structure provided for an embodiment of this utility model.

[0024] Figure 3 This is an exploded view of the present invention.

[0025] Figure 4 This is a schematic diagram showing the connection between the fixing ring and the protective sleeve of this utility model.

[0026] Figure 5 This utility model Figure 1 A sectional view.

[0027] Figure 6 This utility model Figure 3 A sectional view.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Probe body, 2. Fixing plate, 3. Fixing cover, 4. Protective sleeve, 5. Fixing ring, 6. Notch, 7. Through port, 8. Fan, 9. Protective net, 10. Rubber sealing ring, 11. Sealing groove, 12. Valve body. Detailed Implementation

[0030] 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.

[0031] This utility model provides a protective structure for a methane sensor probe, such as... Figures 1 to 6 As shown.

[0032] Example 1:

[0033] A protective structure for a methane sensor probe includes a probe body 1, with a fixing plate 2 at the upper end of the probe body 1 serving as a mounting base. The fixing plate 2 is mounted on a methane detection device, and the probe body 1 is electrically connected to the methane detection device to transmit the detected signal. The methane detection device then displays the detected data for the operator to read.

[0034] A fixing cover 3 is sleeved around the fixing plate 2. A protective sleeve 4 is sleeved below the fixing cover 3 and outside the probe body 1. The protective sleeve 4 is threadedly connected to the fixing cover 3 by a fixing ring 5 fixedly connected to its outer wall. The outer ring surface of the fixing ring 5 is provided with an external thread that matches the fixing cover 3. The upper end of the protective sleeve 4 is provided with multiple notches 6, which are distributed around the circumference of the protective sleeve 4. The fixing ring 5 is provided with multiple through holes 7. The protective sleeve 4 is a cylindrical structure with both ends open. Outside air can enter the interior of the protective sleeve 4 through the lower end of the protective sleeve 4 and come into contact with the probe body 1. Then it is discharged through the notches 6 and through holes 7 in sequence, ensuring the efficiency of air circulation inside the protective sleeve 4 and ensuring the accuracy of detection.

[0035] After the fixing ring 5 is threadedly connected to the fixing cover 3, continue to rotate the protective sleeve 4 clockwise so that the protective sleeve 4 and the fixing cover 3 cooperate to clamp the fixing plate 2, so that the fixing cover 3 and the protective sleeve 4 can stably surround the probe body 1, thereby cooperating to protect the probe body 1.

[0036] The probe body 1 is existing technology and is now widely used in various methane detection devices, so this utility model will not elaborate on it. For example, the probe body 1 can be of model MPn-4C.

[0037] Example 2:

[0038] Based on Embodiment 1, in order to improve the air circulation efficiency inside the protective sleeve 4, a fan 8 is installed inside the lower opening of the protective sleeve 4. When the fan 8 is activated, it can draw outside air into the protective sleeve 4, thereby improving the air circulation efficiency inside the protective sleeve 4.

[0039] Furthermore, to prevent external impurities from entering the interior of the protective sleeve 4 and affecting the detection accuracy of the probe body 1, a protective net 9 is installed above the fan 8. The protective net 9 is installed inside the protective sleeve 4 and is in the shape of a concave arch. When the air passes through the protective net 9, it can guide and disperse the air, so that the air can come into more uniform contact with the probe body 1, thereby further improving the detection accuracy of the probe body 1.

[0040] Example 3:

[0041] Based on Embodiment 2, in order to improve the protective effect of the fixing cover 3 and the protective sleeve 4, a rubber sealing ring 10 is fixedly installed on the upper inner side of the fixing cover 3, and a sealing groove 11 adapted to the rubber sealing ring 10 is provided on the fixing plate 2. When the fixing cover 3 is installed on the fixing plate 2, the rubber sealing ring 10 can be inserted into the sealing groove 11, thereby making the fixing cover 3 and the fixing plate 2 fit more tightly.

[0042] A valve body 12 is installed below the through-hole 7. The valve body 12 is installed on the lower side of the fixing ring 5. The valve body 12 is a spring plate with a protruding plate on one side. The protruding plate is fixedly connected to the lower side of the fixing ring 5. The valve body 12 fits against the lower side of the fixing ring 5 under its own elastic force. When air moves from the top to the bottom of the through-hole 7, the air can push open the valve body 12 and thus be discharged smoothly.

[0043] Because the coverage area of ​​the valve body 12 is larger than the opening area of ​​the through port 7, outside air cannot move from below to above the through port 7.

[0044] 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 protection structure, characterized by, include: The probe body (1) is fixedly mounted with a fixing plate (2); A fixing cover (3) is fitted onto a fixing plate (2); Protective sleeve (4), the protective sleeve (4) is sleeved on the outside of the probe body (1) and threadedly connected to the fixing cover (3); Air enters the interior of the protective sleeve (4) through the lower end and exits from the upper end of the protective sleeve (4).

2. A methane sensor probe protection structure as claimed in claim 1, wherein, The upper outer side of the protective sleeve (4) is fixedly fitted with a fixing ring (5), and the outer ring surface of the fixing ring (5) is provided with an external thread that is compatible with the fixing cover (3).

3. A methane sensor probe protection structure as claimed in claim 2, wherein, The protective sleeve (4) is a cylindrical structure with both ends through, and the upper end of the protective sleeve (4) is provided with multiple notches (6), and the fixing ring (5) is provided with multiple through holes (7).

4. A methane sensor probe protection structure as claimed in claim 3, wherein, A fan (8) is installed at the lower opening of the protective sleeve (4).

5. A methane sensor probe protection structure as claimed in claim 4, wherein, A protective net (9) is installed at the lower opening of the protective sleeve (4).

6. A methane sensor probe protection structure as claimed in claim 5, wherein, The protective net (9) is in the shape of a concave arch.

7. A methane sensor probe protection structure as claimed in claim 6, wherein, The protective net (9) is located above the fan (8).

8. A methane sensor probe protection structure as claimed in claim 3, wherein, A one-way exhaust valve body (12) is installed below each of the through-holes (7) and on the lower side of the fixing ring (5).

9. A methane sensor probe protection structure as claimed in claim 8, wherein, The valve body (12) is a spring plate with a protruding plate on one side. The protruding plate is fixedly connected to the lower side of the fixing ring (5). The valve body (12) fits against the lower side of the fixing ring (5) under its own elastic force.

10. A methane sensor probe protection structure as claimed in claim 1, wherein, A rubber sealing ring (10) is fixedly connected to the inner side of the upper end of the fixed cover (3), and a sealing groove (11) adapted to the rubber sealing ring (10) is provided on the fixed plate (2).

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