Civil methane leakage monitoring device
By designing a combined structure of the detector and the mounting box, and using connectors and compression blocks to adjust the installation position, the problem of inconvenient installation of methane detectors in civilian scenarios has been solved, achieving a flexible and robust installation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU XINDU GANGHUA GAS CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-05-05
AI Technical Summary
Existing methane detectors are difficult to install in civilian applications due to the difficulty in adjusting their installation location according to actual needs, resulting in inconvenient installation and unstable fixation.
The design includes a detector, a fixing box, a first fixing ring, a second fixing ring, and a connector. It is fixed to the gas pipe through the connector, and the installation position is adjusted by the compression block and the knob. Rubber fixing pads and anti-slip strips are used to increase the fixing effect.
It enables flexible installation and secure fixation of the methane detector, allowing it to be installed either outside or inside the cabinet as needed, reducing wear on the gas pipe and improving installation stability.
Smart Images

Figure CN224201546U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of methane leak monitoring, specifically a civilian methane leak monitoring device. Background Technology
[0002] Methane, a colorless and odorless hydrocarbon, is a major component of fuels such as natural gas, biogas, and coal mine gas. It is highly flammable and can form an explosive mixture when mixed with air. It poses a risk of combustion and explosion when exposed to heat sources and open flames. Because methane is both an important energy source and a potential safety hazard, monitoring its leakage is particularly crucial.
[0003] A methane leak monitoring device, also known as a methane detector, is a device specifically designed to detect the concentration of methane gas in the environment. It uses built-in sensors to sample the surrounding air in real time, converting the collected methane gas concentration information into electrical signals or other identifiable signals. After processing and analysis, the information is presented to the user in a digital display format. When the methane concentration in the environment reaches a preset alarm threshold, the device will immediately issue an alarm to remind people to take appropriate measures.
[0004] Currently, in civilian applications, methane detectors are typically installed on kitchen walls or directly in cabinets containing gas meters to monitor methane levels in the air in real time. However, most existing detectors are installed using bolts or wall adhesive. Bolting requires drilling holes in the wall or wood panel, which not only damages the mounting surface but also makes it difficult to change the position once it is determined. While wall adhesive is relatively simple to use, the device's position is also difficult to adjust after the adhesive has cured. Both installation methods make it difficult for personnel to flexibly adjust the installation position according to actual needs. Utility Model Content
[0005] Therefore, the purpose of this utility model is to provide a civilian methane leak monitoring device to solve the technical problem that existing methane detectors are difficult to flexibly adjust the installation position according to actual needs.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a civilian methane leak monitoring device, comprising a detector and a fixing box. A connecting column is fixed to one side of the fixing box, and a fixing component is installed at one end of the connecting column. The fixing component includes a first fixing ring and a second fixing ring. A first fixing pad is provided on the inner wall of the first fixing ring. A groove is provided at one end of the first fixing ring, and a protrusion is fixed at the end of the second fixing ring. Insertion holes are provided inside the groove and the protrusion. A connector is provided inside the insertion hole, and the connector is composed of a bolt and a nut.
[0007] By adopting the above technical solution, the problem of existing methane detectors being unable to flexibly adjust their installation position according to actual needs is solved. Personnel can choose to install the detector outside or inside the cabinet as needed. When fixing the detector, the first and second fixing rings connected to one end of the fixing box are fitted onto the outer wall of the gas pipe. Then, the protrusion is snapped into the groove, and the connector is passed through the insertion hole of the protrusion and the groove, so that the first and second fixing rings are connected and fixed. This allows personnel to adjust the installation position of the detector inside the fixing box at will.
[0008] The present invention is further configured such that the bottom of the detector is provided with three sets of detection ports, and a buzzer is installed inside the detector.
[0009] Preferably, the detector detects the ambient gas in the kitchen through the detection port at its bottom. When the methane concentration in the environment reaches the alarm threshold preset by the detector, the buzzer on the detector will immediately sound an alarm.
[0010] The present invention is further configured such that the bottom of the fixing box is provided with three sets of air holes, and the outer wall of the fixing box is provided with through holes.
[0011] Preferably, when the detector is placed inside the fixed box, gas flows into the detection port through the air hole, and the sound emitted by the buzzer is transmitted to the outside of the fixed box through the through hole.
[0012] The present invention is further configured such that two sets of extrusion blocks are installed inside the second fixing ring, a connecting block is provided on one side of the extrusion block, a limit ring is movably installed inside the connecting block, a lead screw is fixed to one end of the limit ring, and a knob is installed at the end of the lead screw.
[0013] Preferably, when the first fixing ring and the second fixing ring are fixedly sleeved on the outer wall of the gas pipe, the operator can rotate the knob to make the extrusion block extrude the outer wall of the gas pipe, thereby reducing the diameter between the first fixing ring and the extrusion block, so that the first fixing pad and the extrusion block are tightly attached to the outer wall of the gas pipe.
[0014] The present invention is further configured such that the two sets of extrusion blocks are symmetrically arranged, and the central angle between the two sets of extrusion blocks is 90 degrees.
[0015] Preferably, the two sets of extrusion blocks extrude the gas pipe through both sides of the inner wall of the second fixing ring, thereby increasing the fixing effect of the second fixing ring.
[0016] The present invention is further provided with a second fixing pad on the inner wall of the extrusion block, the second fixing pad being made of rubber.
[0017] Preferably, both the first fixing pad and the second fixing pad are made of rubber. When the first fixing pad and the second fixing pad squeeze the gas pipe, the first fixing pad and the second fixing pad will deform. While the first fixing pad and the second fixing pad squeeze the gas pipe, the squeezing wear on the gas pipe can also be reduced.
[0018] The present invention is further configured such that the first fixing pad and the second fixing pad are provided with multiple sets of anti-slip strips inside, and the anti-slip strips are made of rubber.
[0019] Preferably, the anti-slip strip can increase the friction between the first and second fixing pads and the outer wall of the gas pipe.
[0020] The present invention is further configured such that a gas pipe is provided inside the fixing component, a gas meter is connected to the outer wall of the gas pipe, and a cabinet is fitted on the outer wall of the gas meter.
[0021] Preferably, when the fixing box is fixedly installed on the gas pipe by the fixing component, the personnel can choose to install the detector outside or inside the cabinet through the fixing component.
[0022] In summary, the present invention has the following main advantages:
[0023] 1. This utility model solves the problem that existing methane detectors are difficult to flexibly adjust their installation position according to actual needs by setting up a detector, a fixing box, a first fixing ring, a second fixing ring, and a connector. Personnel can choose to install the detector outside or inside the cabinet according to their needs. When fixing the detector, the first and second fixing rings connected to one end of the fixing box are fitted onto the outer wall of the gas pipe. Then, the protrusion is snapped into the groove, and the connector is passed through the insertion hole of the protrusion and the groove, so that the first fixing ring and the second fixing ring are connected and fixed, thereby allowing personnel to adjust the installation position of the detector inside the fixing box at will.
[0024] 2. This utility model solves the problem of insecure installation of the fixing components by setting up a compression block, a second fixing pad, a connecting block, a screw rod, and a knob. When the first fixing ring and the second fixing ring are fitted and fixed on the outer wall of the gas pipe, the operator can rotate the two sets of knobs on the outer wall of the second fixing ring, so that the knob drives the screw rod to push the compression block into the second fixing ring, thereby reducing the diameter between the inner walls of the first fixing ring and the second fixing ring, so that the first fixing pad and the second fixing pad are tightly attached to the outer wall of the gas pipe, making the fixing components less likely to slip off. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall device of this utility model;
[0026] Figure 2This is a schematic diagram of the overall detector of this utility model;
[0027] Figure 3 This is a schematic diagram of the overall fixing component of this utility model;
[0028] Figure 4 This is a schematic diagram of the installation of the extrusion block of this utility model;
[0029] Figure 5 This is a schematic diagram of the lead screw connection of this utility model;
[0030] Figure 6 This is a schematic diagram of the detector of this utility model installed on the outside of the cabinet;
[0031] Figure 7 This is a schematic diagram of the detector of this utility model installed inside a cabinet.
[0032] Explanation of reference numerals in the attached figures:
[0033] 1. Detector; 101. Buzzer; 102. Detection port; 2. Fixing box; 201. Through hole; 202. Air hole; 203. Connecting post; 3. First fixing ring; 301. Groove; 302. First fixing pad; 303. Anti-slip strip; 4. Second fixing ring; 401. Protrusion; 402. Insertion hole; 403. Connector; 5. Extrusion block; 501. Second fixing pad; 502. Connecting block; 503. Knob; 504. Lead screw; 505. Limiting ring; 6. Cabinet; 601. Gas pipe; 602. Gas meter. Detailed Implementation
[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0035] The embodiments of this utility model will be described below based on its overall structure.
[0036] Please see Figure 1 — Figure 7The device includes a detector 1 and a mounting box 2. A connecting post 203 is fixed to one side of the mounting box 2. A fixing component is installed at one end of the connecting post 3. The fixing component includes a first fixing ring 3 and a second fixing ring 4. A first fixing pad 302 is provided on the inner wall of the first fixing ring 3. A groove 301 is formed at one end of the first fixing ring 3. A protrusion 401 is fixed at the end of the second fixing ring 4. Insertion holes 402 are formed inside both the groove 301 and the protrusion 401. A connector 403 is provided inside the insertion hole 402. The connector 403 is composed of a bolt and a nut. This solves the problem of existing methane detectors. To address the issue of difficulty in flexibly adjusting the installation position according to actual needs, personnel can choose to install the detector 1 outside or inside the cabinet 6 as needed. When fixing the detector 1, the first fixing ring 3 and the second fixing ring 4 connected to one end of the fixing box 2 are fitted onto the outer wall of the gas pipe 601. Then, the protrusion 401 is snapped into the groove 301, and the connector 403 is passed through the insertion hole 402 of the protrusion 401 and the groove 301, so that the first fixing ring 3 and the second fixing ring 4 are connected and fixed, thereby allowing personnel to freely adjust the installation position of the detector 1 inside the fixing box 2.
[0037] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 The detector 1 has three sets of detection ports 102 at its bottom and a buzzer 101 installed inside. The detector 1 detects the ambient gas in the kitchen through the detection ports 102 at its bottom. When the methane concentration in the environment reaches the alarm threshold preset by the detector 1, the buzzer 101 on the detector 1 will immediately sound an alarm.
[0038] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 The bottom of the fixed box 2 is provided with three sets of air holes 202, and the outer wall of the fixed box 2 is provided with through holes 201. When the detector 1 is placed inside the fixed box 2, the gas flows into the detection port 102 through the air holes 202, and the sound emitted by the buzzer 101 is transmitted to the outside of the fixed box 2 through the through holes 201.
[0039] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 and Figure 5 The second fixing ring 4 has two sets of compression blocks 5 installed inside. A connecting block 502 is provided on one side of the compression block 5. A limit ring 505 is movably installed inside the connecting block 502. A screw rod 504 is fixed to one end of the limit ring 505. A knob 503 is installed at the end of the screw rod 504. When the first fixing ring 3 and the second fixing ring 4 are fixedly sleeved on the outer wall of the gas pipe 601, the personnel can rotate the knob 503 to make the compression block 5 squeeze the outer wall of the gas pipe 601, thereby reducing the diameter between the first fixing ring 3 and the compression block 5, so that the first fixing pad 302 and the compression block 5 are tightly attached to the outer wall of the gas pipe 601.
[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 Two sets of extrusion blocks 5 are symmetrically arranged, and the central angle between the two sets of extrusion blocks 5 is 90 degrees. The two sets of extrusion blocks 5 extrude gas pipe 601 through both sides of the inner wall of the second fixing ring 4, thereby increasing the fixing effect of the second fixing ring 4.
[0041] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 The inner wall of the extrusion block 5 is provided with a second fixing pad 501, which is made of rubber. Both the first fixing pad 302 and the second fixing pad 501 are made of rubber. When the first fixing pad 302 and the second fixing pad 501 extrude gas pipe 601, the first fixing pad 302 and the second fixing pad 501 will deform. While the first fixing pad 302 and the second fixing pad 501 extrude gas pipe 601, they can also reduce the extrusion wear on gas pipe 601.
[0042] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The first fixing pad 302 and the second fixing pad 501 are provided with multiple sets of anti-slip strips 303, and the anti-slip strips 303 are made of rubber. The anti-slip strips 303 can increase the friction between the first fixing pad 302 and the second fixing pad 501 and the outer wall of the gas pipe 601.
[0043] For details regarding the above embodiments, please refer to [link / reference]. Figure 6 and Figure 7 The fixing component has a gas pipe 601 inside, and a gas meter 602 is connected to the outer wall of the gas pipe 601. The outer wall of the gas meter 602 is fitted with a cabinet 6. When the fixing box 2 is fixedly installed on the gas pipe 601 by the fixing component, the personnel can choose to install the detector 1 outside or inside the cabinet 6 through the fixing component.
[0044] In practical operation, when the detector 1 is connected to the power supply, the detector 1 detects the ambient gas in the kitchen through the detection port 102 at its bottom. When the methane concentration in the environment reaches the alarm threshold preset by the detector 1, the buzzer 101 on the detector 1 will immediately sound an alarm to notify the personnel that the methane content index in the environment exceeds the standard.
[0045] If the installation position of the detector 1 needs to be adjusted, firstly, the first fixing ring 3 and the second fixing ring 4 are fitted onto the outer wall of the gas pipe 601, so that the protrusion 401 at the end of the second fixing ring 4 is engaged with the groove 301 at one end of the first fixing ring 3. Then, the connector 403 is inserted through the insertion hole 402 between the protrusion 401 and the groove 301. Since the connector 403 is composed of a bolt and a nut, the first fixing ring 3 is connected and fixed to the second fixing ring 4 through the protrusion 401 and the connector 403. Then, the two sets of knobs 5 on the outer wall of the second fixing ring 4 are rotated. 03, Rotating 503 drives the lead screw 504 connected to its end to rotate. Since the lead screw 504 is connected to the inner wall of the second fixed ring 4 by a thread, the rotating lead screw 504 pushes the extrusion block 5 into the second fixed ring 4. The pushing of the two sets of extrusion blocks 5 reduces the diameter between the inner walls of the first fixed ring 3 and the second fixed ring 4, so that the first fixing pad 302 on the inner wall of the first fixed ring 3 and the second fixing pad 501 on the inner wall of the second fixed ring 4 are tightly attached to the outer wall of the gas pipe 601, thereby fixing the fixing box 2 to the gas pipe 601.
[0046] Finally, the detector 1 is installed inside the mounting box 2 and connected to the power supply, so that the installation position of the detector 1 can be flexibly adjusted according to actual needs.
[0047] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A civilian methane leak monitoring device, comprising a detector (1) and a mounting box (2), characterized in that: A connecting post (203) is fixed on one side of the fixing box (2). A fixing component is installed at one end of the connecting post (203). The fixing component includes a first fixing ring (3) and a second fixing ring (4). A first fixing pad (302) is provided on the inner wall of the first fixing ring (3). A groove (301) is opened at one end of the first fixing ring (3). A protrusion (401) is fixed at the end of the second fixing ring (4). An insertion hole (402) is opened inside both the groove (301) and the protrusion (401). A connector (403) is provided inside the insertion hole (402). The connector (403) is composed of a bolt and a nut.
2. The civilian methane leak monitoring device according to claim 1, characterized in that: The bottom of the detector (1) is provided with three sets of detection ports (102), and a buzzer (101) is installed inside the detector (1).
3. The civilian methane leak monitoring device according to claim 1, characterized in that: The bottom of the fixing box (2) is provided with three sets of air holes (202), and the outer wall of the fixing box (2) is provided with through holes (201).
4. The civilian methane leak monitoring device according to claim 1, characterized in that: The second fixing ring (4) has two sets of extrusion blocks (5) installed inside. A connecting block (502) is provided on one side of the extrusion block (5). A limiting ring (505) is movably installed inside the connecting block (502). A screw rod (504) is fixed at one end of the limiting ring (505). A knob (503) is installed at the end of the screw rod (504).
5. The civilian methane leak monitoring device according to claim 4, characterized in that: The two sets of extrusion blocks (5) are symmetrically arranged, and the central angle between the two sets of extrusion blocks (5) is 90 degrees.
6. The civilian methane leak monitoring device according to claim 4, characterized in that: The inner wall of the extrusion block (5) is provided with a second fixing pad (501), which is made of rubber.
7. The civilian methane leak monitoring device according to claim 6, characterized in that: The first fixing pad (302) and the second fixing pad (501) are provided with multiple sets of anti-slip strips (303), and the anti-slip strips (303) are made of rubber.
8. The civilian methane leak monitoring device according to claim 1, characterized in that: The fixed component has a gas pipe (601) inside, and a gas meter (602) is connected to the outer wall of the gas pipe (601). The outer wall of the gas meter (602) is fitted with a cabinet (6).