A combustible gas detector that is easy to maintain
By introducing a dual protective structure of a protective frame and a filter plate into the combustible gas detector, the problem of decreased sensitivity and structural damage caused by external impact and impurity intrusion during long-term use is solved, thus achieving equipment stability and simplified maintenance, and ensuring the safety and convenience of the detector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SWIFT INTELLIGENT TECH CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-08-04
AI Technical Summary
Existing combustible gas detectors are susceptible to particulate contaminants and external impacts during prolonged use, leading to decreased sensitivity and structural damage, and lack of effective protective structures.
An easy-to-maintain combustible gas detector was designed, which adopts a dual protection structure of protective frame and filter plate to prevent external impact and impurity intrusion. The detector body can be quickly installed and disassembled by pressing and pulling, simplifying maintenance operations.
It effectively prevents the detector body from being subjected to external impacts and the intrusion of impurities, maintains sensitivity and stability, extends service life, simplifies the maintenance process, reduces labor intensity and the risk of damage, and ensures safety and convenience.
Smart Images
Figure CN224594607U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of combustible gas detection technology, specifically to an easy-to-maintain combustible gas detector. Background Technology
[0002] Combustible gases, such as hydrogen, acetylene, ethylene, ammonia, hydrogen sulfide, and methane, when mixed in a certain proportion with appropriate combustion-supporting media and placed in an ignition source or high-temperature environment, may cause combustion or explosion. Therefore, in any situation where combustible gases are used, it is necessary to detect leaks to improve safety. Combustible gas detectors are one of the commonly used fire early warning devices. They can detect smoke and gas on site and issue alarm signals in a timely manner. They are of great significance for timely and orderly evacuation, effective control of the spread of fire, rapid fire extinguishing, and minimizing the loss of life caused by fire.
[0003] A search revealed a Chinese patent publication number, CN221145969U, which discloses a combustible gas detector, including a body assembly. The body assembly includes: a mounting plate with multiple mounting blocks fixedly connected to its side; a detector body disposed inside the mounting plate; and a disassembly assembly inside the mounting plate, comprising: a mounting groove formed on the front surface of the mounting plate. When a fixing block contacts the groove, the detector body is fixedly installed inside the mounting plate; when the fixing block slides out of the groove, the detector body can be disassembled from inside the mounting plate, achieving convenient installation and disassembly.
[0004] Although the aforementioned patent allows for the installation and removal of the detector body, the aforementioned combustible gas detector still has the following problems: since the device detects gas by directly mounting the detector body on the mounting plate without setting a protective structure, the detector body may be invaded by some particulate pollutants and impurities during long-term detection, resulting in decreased sensitivity and external impacts and collisions, causing structural damage or even affecting the detection effect. In view of the above situation, technical innovation is carried out on the basis of the existing device. Utility Model Content
[0005] The purpose of this invention is to provide an easy-to-maintain combustible gas detector to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-maintain combustible gas detector, comprising a mounting plate, a rotating groove on the front side of the mounting plate, a protective frame rotatably connected to the top of the mounting plate, the protective frame having a "U" shaped cross-section, a sliding groove on the top of the protective frame, a filter plate slidably connected inside the sliding groove, a filter screen being provided on the filter plate, a handle being provided on the top of the filter plate, a fixing block being fixedly connected to the side of the protective frame near the mounting plate, a fixing groove extending outwards inside the fixing block, the fixing block being slidably connected to the interior of the rotating groove, an mounting groove extending outwards inside the mounting plate, a detector body slidably connected inside the mounting groove, a handle being provided on the detector body, a moving groove being provided on the inner wall of the mounting groove, and a power adjustment device being provided inside the moving groove.
[0007] Preferably, the power adjustment device includes a limiting rod, which is slidably connected to the inside of the moving groove. The limiting rod has a "Z" shaped cross-section, and one end of the limiting rod is provided with an inclined surface. A second spring is fixedly connected to the end of the limiting rod near the moving groove, and the end of the second spring away from the limiting rod is fixedly connected to the inner wall of the moving groove.
[0008] Preferably, a crossbar is fixedly connected to the side of the detector body near the mounting groove, and a first protrusion is fixedly connected to the end of the crossbar away from the detector body. The cross section of the first protrusion is trapezoidal.
[0009] Preferably, a second protrusion is movably sleeved on the surface of the crossbar, and a groove is formed on the side of the second protrusion near the first protrusion. The first protrusion is slidably connected to the inside of the groove, and an arc surface is provided on the side of the second protrusion away from the groove.
[0010] Preferably, the mounting plate has two power slots inside, and the interior of the power slots communicates with the interior of the rotation slot.
[0011] Preferably, a fixed rod is slidably connected inside each of the two power slots, the fixed rod is inserted into the inside of the fixed slot, a slope is provided on one side of the top of the fixed rod, and a connecting rod is fixedly connected between the two fixed rods.
[0012] Preferably, a power block is fixedly connected to one side of the fixed rod, and the power block is slidably connected to the inside of the power groove.
[0013] Preferably, a first spring is fixedly connected to one side of the power block, and the end of the first spring away from the power block is fixedly connected to the inner wall of the power groove.
[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This easy-to-maintain combustible gas detector, with its protective frame and filter plate, provides double protection for the detector body. The protective frame acts as an external barrier, effectively preventing the detector body from being subjected to external impacts, collisions, and the intrusion of debris during use, thereby ensuring the overall safety and stability of the equipment and extending the service life of the detector body. At the same time, the filter plate can effectively filter the incoming air or impurities, preventing impurities and particles from entering the detector body and avoiding the decline in detection performance due to the accumulation of impurities, ensuring that it maintains its sensitivity and stability for a long time. The filter plate can also be easily removed for cleaning and replacement, ensuring that the equipment always maintains a good working environment during long-term use and reducing maintenance difficulty.
[0015] 2. This easy-to-maintain combustible gas detector allows for quick assembly and disassembly without special tools by pressing and pulling the detector body. Operators can install by simply pressing and disassemble by pulling, significantly reducing operation time and maintenance difficulty. Furthermore, both pressing and pulling are intuitive and ergonomic, reducing labor intensity and avoiding the risk of damage from complex operations. This design also ensures the detector body is stable and reliable during use, with the limit switch only released when the operator performs a specific operation, thus balancing safety and convenience. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an easy-to-maintain combustible gas detector according to the present invention; Figure 2 This is a schematic diagram of the filter plate structure of this utility model; Figure 3 This is a schematic diagram of the movable slot structure of this utility model; Figure 4 For the present utility model Figure 3 A magnified structural diagram of A in the middle; Figure 5 This is a schematic diagram of the limiting rod structure of this utility model; Figure 6 For the present utility model Figure 5 A magnified structural diagram of B in the diagram.
[0017] In the diagram: 1. Mounting plate; 2. Protective frame; 3. Detector body; 4. Rotating groove; 5. Fixing block; 6. Fixing groove; 7. Groove; 8. Fixing rod; 9. Connecting rod; 10. Filter plate; 11. Sliding groove; 12. First protrusion; 13. Power groove; 14. First spring; 15. Power block; 16. Limiting rod; 17. Moving groove; 18. Second spring; 19. Mounting groove; 20. Crossbar; 21. Second protrusion. Detailed Implementation
[0018] Please see Figure 1-6 This utility model provides a technical solution: an easy-to-maintain combustible gas detector, including a mounting plate 1. Two symmetrical rotating grooves 4 are opened on the front side of the mounting plate 1. A protective frame 2 is rotatably connected to the top of the mounting plate 1. The cross-section of the protective frame 2 is "U-shaped". A sliding groove 11 is opened on the top of the protective frame 2. A filter plate 10 is slidably connected inside the sliding groove 11. A filter screen is provided on the filter plate 10. A handle is provided on the top of the filter plate 10. Two symmetrical fixing blocks 5 are fixedly connected to the side of the protective frame 2 near the mounting plate 1. A fixing groove 6 extending to the outside is opened inside the fixing block 5. The fixing block 5 is slidably connected to the inside of the rotating groove 4. An installation groove 19 extending to the outside is opened inside the mounting plate 1. A detector body 3 is slidably connected inside the installation groove 19. A handle is provided on the detector body 3. The detector body 3 is an existing structure and will not be described in detail. Multiple moving grooves 17 are opened on the inner wall of the installation groove 19. A power adjustment device is provided inside the moving groove 17.
[0019] The power adjustment device includes a limiting rod 16, which is slidably connected to the inside of the moving groove 17. The limiting rod 16 has a "Z" shaped cross section and an inclined surface at one end. A second spring 18 is fixedly connected to the end of the limiting rod 16 near the moving groove 17. The end of the second spring 18 away from the limiting rod 16 is fixedly connected to the inner wall of the moving groove 17. By sliding the limiting rod 16, the second spring 18 can be compressed and reset.
[0020] Two symmetrical crossbars 20 are fixedly connected to the side of the detector body 3 near the mounting groove 19. A first protrusion 12 is fixedly connected to the end of the crossbar 20 away from the detector body 3. The cross section of the first protrusion 12 is trapezoidal. A second protrusion 21 is movably sleeved on the surface of the crossbar 20. A groove 7 is provided on the side of the second protrusion 21 near the first protrusion 12. The first protrusion 12 is slidably connected to the inside of the groove 7. A multi-level arc surface is provided on the side of the second protrusion 21 away from the groove 7.
[0021] The operator places the detector body 3 into the mounting groove 19 and presses it down. The detector body 3, via the crossbar 20, causes the first protrusion 12 to slide into the mounting groove 19. The surface of the first protrusion 12 contacts the inclined surface on the limiting rod 16, causing the limiting rod 16 to slide under force and compress the second spring 18. Continuing to press the detector body 3 positions the first protrusion 12 on the other side of the limiting rod 16. Simultaneously, the second spring 18 returns to its original position, causing the limiting rod 16 to return to its original position. The limiting rod 16 can thus block and position the first protrusion 12, preventing the detector body 3 from sliding out of the mounting groove 19. When the detector body 3 needs to be disassembled, the operator simply continues to push the detector body 3. The detector body 3 drives the crossbar 20 to continue sliding. The crossbar 20 drives the second protrusion 21 to slide and contact the inclined surface on the limiting rod 16. The limiting rod 16 is forced to slide again, and the second spring 18 is compressed again. The operator continues to push the detector body 3, so that the second protrusion 21 is also located on the other side of the limiting rod 16. The limiting rod 16 contacts the multi-stage arc surface on the second protrusion 21 and approaches the detector body 3. Then the operator pulls the handle on the detector body 3. Due to the second spring 18, the second spring 18 is compressed again. Due to the characteristics of spring 18, one end of the inclined surface of the limiting rod 16 presses against the surface of the second protrusion 21. Continuing to pull the detector body 3, the detector body 3 causes the crossbar 20 and the first protrusion 12 to slide, allowing the first protrusion 12 to slide into the groove 7 on the second protrusion 21. The second protrusion 21 wraps around the first protrusion 12. The inclined surface of the limiting rod 16 continuously contacts the multi-level arc surface on the second protrusion 21, ultimately causing the second protrusion 21 to drive the first protrusion 12 to slide into the mounting groove 19, releasing the limiting rod 16 from the first protrusion 12, thereby allowing the detector body 3 to be removed. By pressing and pulling the detector body 3, the detector body 3 can be quickly installed and disassembled without special tools. The staff can complete the installation by simply pressing and disassembling by pulling, which greatly shortens the operation time and reduces the difficulty of maintenance. In addition, both pressing and pulling are easy-to-use actions, which are ergonomic and reduce the labor intensity during operation, avoiding the risk of damage caused by complex operations. At the same time, this design ensures that the detector body 3 is stable and reliable during use. The limit is only released when the staff performs a specific operation, thus balancing safety and convenience.
[0022] The mounting plate 1 has two symmetrical power slots 13 inside, and the inside of the power slots 13 is connected to the inside of the rotating slot 4.
[0023] Both power slots 13 are slidably connected to fixed rods 8, which are inserted into the interior of fixed slots 6. One side of the top of the fixed rod 8 is provided with an inclined surface. A connecting rod 9 is fixedly connected between the two fixed rods 8. A power block 15 is fixedly connected to one side of the fixed rod 8. The power block 15 is slidably connected to the interior of the power slot 13. A first spring 14 is fixedly connected to one side of the power block 15. The end of the first spring 14 away from the power block 15 is fixedly connected to the inner wall of the power slot 13. By sliding the power block 15 up and down, the first spring 14 can be compressed and reset.
[0024] By pulling the handle upwards, the filter plate 10 can be removed from the sliding groove 11 for cleaning, maintenance, and replacement. Simultaneously, by pulling the connecting rod 9 downwards, the connecting rod 9 causes the two fixing rods 8 to slide downwards, releasing the fixing block 5 from the fixing groove 6. The power block 15 slides and compresses the first spring 14. Then, the operator can rotate the protective frame 2 to easily install and remove the detector body 3. By setting up the protective frame 2 and the filter plate 10, the detector body 3 can be protected in two ways. The protective frame 2 acts as an external barrier, effectively preventing the detector body 3 from being subjected to external impacts, collisions, and the intrusion of debris during use, thereby ensuring the overall safety and stability of the equipment and extending the service life of the detector body 3. At the same time, the filter plate 10 can effectively filter the incoming air or impurities, preventing impurities and particles from entering the detector body 3 and avoiding the decline in detection performance due to the accumulation of impurities, ensuring that it maintains its sensitivity and stability for a long time. The filter plate 10 can also be easily removed for cleaning and replacement, ensuring that the equipment always maintains a good working environment during long-term use and reducing maintenance difficulty.
[0025] Working principle: For this type of easy-to-maintain combustible gas detector, the operator first places the detector body 3 into the mounting slot 19. When the detector body 3 is pressed, the detector body 3 drives the crossbar 20 to slide, so that the first protrusion 12 enters the mounting slot 19 and contacts the inclined surface on the limiting rod 16, pushing the limiting rod 16 to slide along the moving slot 17 and compressing the second spring 18. As the detector body 3 continues to be pressed, the first protrusion 12 passes over the inclined surface of the limiting rod 16 and enters its other side. Under the reset action of the second spring 18, the limiting rod 16 returns to its original position and limits the first protrusion 12, thereby achieving stable fixation of the detector body 3. When disassembly is required, the operator pushes the detector body 3 again, causing the crossbar 20 to continue sliding. This causes the second protrusion 21 to contact the inclined surface of the limiting rod 16. The limiting rod 16 then slides against the elastic force of the second spring 18. As the detector body 3 is pushed further, the second protrusion 21 passes over the limiting rod 16 and enters its other side. The limiting rod 16 and the multi-level arc surface on the second protrusion 21 continue to contact and adhere to the surface of the detector body 3. At this time, the operator pulls the handle on the detector body 3. The inclined surface of the limiting rod 16 exerts a pressing effect on the second protrusion 21. Continuing to pull allows the detector body 3 to slide along the crossbar 20 and the first protrusion 12. The first protrusion 12 enters the groove 7 of the second protrusion 21, forming a wrapping structure. Subsequently, the limiting rod 16 and the multi-level arc surface of the second protrusion 21 continue to contact, eventually causing the first protrusion 12 to exit the mounting groove 19, releasing the limiting force on the detector body 3, thereby achieving the smooth disassembly of the detector body 3. In addition, by pulling the handle upwards, the filter plate 10 can be removed from the sliding groove 11 for easy cleaning or replacement. By pulling the connecting rod 9 downwards, the fixing rod 8 slides down, exits the fixing groove 6, and releases the limit on the fixing block 5. The power block 15 slides under the action of external force and compresses the first spring 14, thereby enabling the protective frame 2 to rotate, which facilitates the installation or disassembly of the detector body 3.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A combustible gas detector easy to maintain, a mounting plate (1), characterized in that: The mounting plate (1) has a rotating groove (4) on its front side. The top of the mounting plate (1) is rotatably connected to a protective frame (2). The protective frame (2) has a "U" shaped cross section. The top of the protective frame (2) has a sliding groove (11). The inside of the sliding groove (11) is slidably connected to a filter plate (10). The filter plate (10) is provided with a filter screen. The top of the filter plate (10) is provided with a handle. The protective frame (2) is fixedly connected to a fixing block (5) on the side close to the mounting plate (1). The inside of the fixing block (5) is provided with a fixing groove (6) extending to its outside. The fixing block (5) is slidably connected to the inside of the rotating groove (4). The inside of the mounting plate (1) is provided with a mounting groove (19) extending to its outside. The inside of the mounting groove (19) is slidably connected to a detector body (3). The detector body (3) is provided with a handle. The inner wall of the mounting groove (19) is provided with a moving groove (17). The inside of the moving groove (17) is provided with a power adjustment device.
2. A combustible gas detector easy to maintain according to claim 1, characterized in that: The power adjustment device includes a limiting rod (16), which is slidably connected to the inside of the moving groove (17). The limiting rod (16) has a "Z" shaped cross section. One end of the limiting rod (16) is provided with an inclined surface. A second spring (18) is fixedly connected to the end of the limiting rod (16) near the moving groove (17). The end of the second spring (18) away from the limiting rod (16) is fixedly connected to the inner wall of the moving groove (17).
3. A maintenance-friendly combustible gas detector according to claim 1, characterized in that: A crossbar (20) is fixedly connected to the side of the detector body (3) near the mounting groove (19). A first protrusion (12) is fixedly connected to the end of the crossbar (20) away from the detector body (3). The cross section of the first protrusion (12) is trapezoidal.
4. A combustible gas detector easy to maintain according to claim 3, characterized in that: The surface of the crossbar (20) is movably fitted with a second protrusion (21). The second protrusion (21) has a groove (7) on the side near the first protrusion (12). The first protrusion (12) slides into the groove (7). The side of the second protrusion (21) away from the groove (7) has an arc surface.
5. A maintenance-friendly combustible gas detector according to claim 1, characterized in that: The mounting plate (1) has two power slots (13) inside, and the inside of the power slots (13) is connected to the inside of the rotating slots (4).
6. A combustible gas detector easy to maintain according to claim 5, characterized in that: Both of the power slots (13) are slidably connected with fixed rods (8), which are inserted into the inside of the fixed slots (6). One side of the top of the fixed rod (8) is provided with an inclined surface, and a connecting rod (9) is fixedly connected between the two fixed rods (8).
7. A combustible gas detector easy to maintain according to claim 6, characterized in that: A power block (15) is fixedly connected to one side of the fixed rod (8), and the power block (15) is slidably connected to the inside of the power groove (13).
8. A maintenance-friendly combustible gas detector according to claim 7, characterized in that: A first spring (14) is fixedly connected to one side of the power block (15), and the end of the first spring (14) away from the power block (15) is fixedly connected to the inner wall of the power groove (13).