Height-adjustable combustible gas detection device

Abstract

The utility model belongs to the field of fire fighting, particularly relates to a height-adjustable combustible gas detection device, and provides the following scheme aiming at the problem that the height of the conventional combustible gas detection device is fixed and cannot be adjusted: the height-adjustable combustible gas detection device comprises a combustible gas detector main body, the mounting plate is in bolted connection with the top of the combustible gas detector main body; the lifting assembly comprises a gear motor, a rotating rod, winding wheels and lifting ropes, the output end of the gear motor is in key connection with one end of the rotating rod, the number of the winding wheels and the number of the lifting ropes are both two, and the axes of the two winding wheels are in key connection with the two ends of the surface of the rotating rod correspondingly; the combustible gas detector main body can be driven to ascend and descend through the winding wheel, the lifting rope and the mounting plate, so that the height of the combustible gas detector main body can be adjusted, the combustible gas detector main body can detect combustible gas at different heights, and the height of the combustible gas detector main body can be reduced through ascending and descending, so that the combustible gas detector is more convenient to use. And detection and maintenance are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, and in particular to a height-adjustable combustible gas detection device. Background Technology

[0002] Combustible gas refers to substances that can be ignited and are in a gaseous state at normal temperature and pressure, such as hydrogen, acetylene, ethylene, ammonia, and hydrogen sulfide. In order to ensure fire safety, combustible gas detection devices need to be installed in places where combustible gas is prone to leakage for real-time detection. For example, Chinese patent document with publication number CN220399372U discloses a combustible gas detection device for safety evaluation.

[0003] However, once the combustible gas detection device described above is installed in places such as the ceiling inside a building, the height of the combustible gas detection device becomes fixed and cannot be adjusted. When calibration and maintenance are required, scaffolding or a professional lift can only be used, making the calibration and maintenance of the combustible gas detector inconvenient. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the height is fixed and cannot be adjusted, and to propose a height-adjustable combustible gas detection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A height-adjustable combustible gas detection device, comprising:

[0007] Main body of the combustible gas detector;

[0008] Mounting plate, which is bolted to the top of the combustible gas detector body;

[0009] The lifting assembly includes a geared motor, a rotating rod, a winding reel, and a lifting rope. The output end of the geared motor is keyed to one end of the rotating rod. There are two winding reels and two lifting ropes. The shafts of the two winding reels are keyed to both ends of the rotating rod surface. The inside of the winding reel is wound around the top of the lifting rope. The bottom end of the lifting rope is bolted to the top of the mounting plate.

[0010] The mounting frame is rotatably fitted between the two ends of the rotating rod;

[0011] The stabilizing assembly includes a winding wheel and a stabilizing rope. The shaft of the winding wheel is connected to the middle key on the surface of the rotating rod. The inside of the winding wheel is wound around the top of the stabilizing rope, and the bottom end of the stabilizing rope is connected to the right bolt on the top of the mounting plate.

[0012] The snap-fit ​​mechanism connects to the mounting frame. Through the structure of the winding wheel, lifting rope, and mounting plate, it can drive the main body of the combustible gas detector to rise and fall. In this way, the height of the main body of the combustible gas detector can be adjusted. This not only allows the main body of the combustible gas detector to detect combustible gases at different heights, but also allows the height of the main body of the combustible gas detector to be lowered, making it convenient for detection and maintenance.

[0013] As a preferred embodiment of this utility model, the locking mechanism includes an electric actuator, a transmission frame, a rack, and a pinion. The protrusion at the output end of the electric actuator is slidably connected to the sliding hole of the transmission frame. The transmission frame is bolted to the rack. The end of the rotating rod away from the reduction motor is keyed to the shaft of the pinion. The power supply to the electric actuator is turned on. The electric actuator is controlled by a controller. The protrusion at the output end of the electric actuator can slide in the sliding hole of the transmission frame and drive the transmission frame to rotate. The transmission frame can drive the rack to move downward. The rack can be locked onto the pinion downward by its teeth, thus limiting the rotation of the rod.

[0014] In a preferred embodiment of this utility model, the surface of the electric actuator is bolted to the inner side of the mounting frame, the transmission frame is rotatably connected to the mounting frame, the transmission frame has an L-shaped structure, the electric actuator is fixed by the mounting frame, which facilitates the electric actuator to drive the transmission frame to rotate, the transmission frame is rotatably set to the mounting frame through bearings, and the structure of the transmission frame allows the transmission frame to drive the rack to move downward.

[0015] As a preferred embodiment of this utility model, mounting ears are welded around the top of the mounting frame. The geared motor is bolted to the mounting frame. The mounting ears of the mounting frame can be used to install and fix the mounting frame. The geared motor is fixed by the mounting frame, which facilitates the geared motor to drive the rotating rod to rotate.

[0016] As a preferred embodiment of this utility model, the surface of the stabilizing rope is slidably connected to a guide wheel, and the axis of the guide wheel is keyed to a connecting shaft. Both ends of the connecting shaft are rotatably sleeved with the interior of the mounting frame. The guide wheel guides the stabilizing rope, and the guide wheel is rotatably supported by the mounting frame through the connecting shaft. The guidance of the guide wheel makes the two lifting ropes and the stabilizing rope form a triangular structure, which has good stability.

[0017] As a preferred embodiment of this utility model, the mounting frame is internally connected with limiting rollers. There are three limiting rollers, which are distributed on both sides of the winding wheel and the right side of the guide wheel. The limiting rollers are used to limit the sides of the winding wheel and the guide wheel to prevent the two lifting ropes and one stabilizing rope from detaching.

[0018] Beneficial effects:

[0019] 1. The geared motor can drive the rotating rod to rotate, the rotating rod can drive the winding wheel to rotate, the winding wheel can drive the lifting rope to rise and fall, the lifting rope can drive the mounting plate to rise and fall, and the mounting plate can drive the main body of the combustible gas detector to rise and fall.

[0020] 2. The electric actuator can drive the transmission frame to rotate, the transmission frame can drive the rack to move, and the rack can be locked on the pinion to limit the rotation of the rod;

[0021] In this invention, the structure of the winding wheel, lifting rope, and mounting plate can drive the main body of the combustible gas detector to rise and fall. In this way, the height of the main body of the combustible gas detector can be adjusted, which not only allows the main body of the combustible gas detector to detect combustible gases at different heights, but also allows the height of the main body of the combustible gas detector to be lowered by raising and lowering, which facilitates detection and maintenance. Attached Figure Description

[0022] Figure 1 This is a perspective view of the entire utility model;

[0023] Figure 2 This is a perspective view of the snap-fit ​​mechanism of this utility model;

[0024] Figure 3 This is a perspective view of the guide wheel of this utility model;

[0025] Figure 4 This is a perspective view of the mounting plate of this utility model.

[0026] In the diagram: 1. Mounting frame; 2. Gear motor; 3. Rotating rod; 4. Winding reel; 5. Lifting rope; 6. Mounting plate; 7. Main body of combustible gas detector; 8. Winding wheel; 9. Stabilizing rope; 10. Guide wheel; 11. Connecting shaft; 12. Electric actuator; 13. Transmission frame; 14. Rack; 15. Pinion; 16. Limiting roller. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example

[0029] Reference Figures 1-4 A highly adjustable combustible gas detection device, comprising:

[0030] Combustible gas detector main body 7;

[0031] Mounting plate 6 is bolted to the top of the combustible gas detector body 7;

[0032] The lifting assembly includes a geared motor 2, a rotating rod 3, a winding wheel 4, and a lifting rope 5. The output end of the geared motor 2 is keyed to one end of the rotating rod 3. There are two winding wheels 4 and two lifting ropes 5. The shafts of the two winding wheels 4 are keyed to the two ends of the surface of the rotating rod 3, respectively. The inside of the winding wheel 4 is wound around the top of the lifting rope 5, and the bottom end of the lifting rope 5 is bolted to the top of the mounting plate 6.

[0033] Mounting frame 1 is rotatably sleeved between the two ends of rotating rod 3;

[0034] The stabilizing assembly includes a winding wheel 8 and a stabilizing rope 9. The shaft of the winding wheel 8 is connected to the middle key on the surface of the rotating rod 3. The inside of the winding wheel 8 is wound around the top of the stabilizing rope 9. The bottom end of the stabilizing rope 9 is connected to the right side bolt on the top of the mounting plate 6.

[0035] The snap-fit ​​mechanism is connected to the mounting frame 1.

[0036] With the above structure, the main body 7 of the combustible gas detector can be raised and lowered through the structure of the winding wheel 4, the lifting rope 5 and the mounting plate 6. In this way, the height of the main body 7 of the combustible gas detector can be adjusted. This not only allows the main body 7 of the combustible gas detector to detect combustible gases at different heights, but also allows the height of the main body 7 of the combustible gas detector to be lowered, which is convenient for detection and maintenance.

[0037] Please see Figure 2 The locking mechanism includes an electric actuator 12, a transmission frame 13, a rack 14, and a pinion 15. The protrusion at the output end of the electric actuator 12 is slidably connected to the sliding hole of the transmission frame 13. The transmission frame 13 is bolted to the rack 14. The end of the rotating rod 3 away from the reduction motor 2 is keyed to the shaft of the pinion 15. The power supply to the electric actuator 12 is turned on. The electric actuator 12 is controlled by a controller. The protrusion at the output end of the electric actuator 12 can slide in the sliding hole of the transmission frame 13 and drive the transmission frame 13 to rotate. The transmission frame 13 can drive the rack 14 to move downward. The rack 14 can be locked onto the pinion 15 downward by its teeth, thus limiting the rotation of the rotating rod 3.

[0038] Please see Figure 2 The surface of the electric actuator 12 is bolted to the inner side of the mounting frame 1. The transmission frame 13 is rotatably connected to the mounting frame 1. The transmission frame 13 has an L-shaped structure. The electric actuator 12 is fixed by the mounting frame 1, which facilitates the electric actuator 12 to drive the transmission frame 13 to rotate. The transmission frame 13 is rotatably set to the mounting frame 1 through bearings. The structure of the transmission frame 13 allows the transmission frame 13 to drive the rack 14 to move downward.

[0039] Please see Figure 3Mounting ears are welded around the top of the mounting frame 1. The geared motor 2 is bolted to the mounting frame 1. The mounting ears of the mounting frame 1 can be used to fix the mounting frame 1. The geared motor 2 is fixed by the mounting frame 1, which makes it convenient for the geared motor 2 to drive the rotating rod 3 to rotate.

[0040] Please see Figure 4 The surface of the stabilizing rope 9 is slidably connected to a guide wheel 10. The axis of the guide wheel 10 is keyed to a connecting shaft 11. Both ends of the connecting shaft 11 are rotatably sleeved inside the mounting frame 1. The guide wheel 10 guides the stabilizing rope 9. The guide wheel 10 is rotatably supported by the mounting frame 1 through the connecting shaft 11. The guide wheel 10 makes the two lifting ropes 5 and the stabilizing rope 9 form a triangular structure, which has good stability.

[0041] Please see Figure 1 The mounting frame 1 has a rotatable connection of three limiting rollers 16, which are distributed on both sides of the winding wheel 4 and the right side of the guide wheel 10. The limiting rollers 16 are used to limit the sides of the winding wheel 4 and the guide wheel 10 to prevent the two lifting ropes 5 and the stabilizing rope 9 from coming off.

[0042] It should be noted that the specific model of the geared motor 2 and electric actuator 12 used can be selected by those skilled in the art. Furthermore, the geared motor 2 and electric actuator 12 mentioned above are all existing technologies and will not be elaborated upon in this solution.

[0043] The main body 7 of the combustible gas detector adopts existing technology and can adopt the main structure of the patent with application number 202022636525.8.

[0044] The operating steps of this utility model are as follows: The mounting frame 1 can be installed on the ceiling of a building. The main body 7 of the combustible gas detector is connected to a power source via a cable. When the height of the main body 7 needs to be adjusted, the reduction motor 2 can drive the rotating rod 3 to rotate, which in turn drives the winding wheel 4 to rotate. The winding wheel 4 can lower and release the lifting rope 5, which in turn drives the mounting plate 6 to move downwards. The mounting plate 6 then drives the main body 7 of the combustible gas detector to move downwards, facilitating maintenance of the main body 7. During this process, the rotating rod 3 can drive the winding wheel 8 to rotate, winding... Wheel 8 can drive the stabilizing rope 9 to move. The stabilizing rope 9 can stabilize the mounting plate 6 and the combustible gas detector body 7. The guide wheel 10 and the connecting shaft 11 guide the stabilizing rope 9. When the combustible gas detector body 7 is raised or lowered to a suitable position, the power supply of the electric push rod 12 is turned on. The electric push rod 12 is controlled by a controller. The protrusion at the output end of the electric push rod 12 can slide in the sliding hole of the transmission frame 13 and drive the transmission frame 13 to rotate. The transmission frame 13 can drive the rack 14 to move downward. The rack 14 can move downward and use its teeth to lock onto the pinion 15 to limit the rotation rod 3.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A height-adjustable combustible gas detection device, characterized in that, include Combustible gas detector body (7); Mounting plate (6) is bolted to the top of the combustible gas detector body (7); The lifting assembly includes a geared motor (2), a rotating rod (3), a winding wheel (4), and a lifting rope (5). The output end of the geared motor (2) is keyed to one end of the rotating rod (3). There are two winding wheels (4) and two lifting ropes (5). The shafts of the two winding wheels (4) are keyed to the two ends of the surface of the rotating rod (3). The inside of the winding wheel (4) is wound around the top of the lifting rope (5). The bottom end of the lifting rope (5) is bolted to the top of the mounting plate (6). Mounting frame (1), which is rotatably sleeved between the two ends of rotating rod (3); The stabilizing assembly includes a winding wheel (8) and a stabilizing rope (9). The shaft of the winding wheel (8) is connected to the middle key of the surface of the rotating rod (3). The inside of the winding wheel (8) is wound around the top of the stabilizing rope (9). The bottom end of the stabilizing rope (9) is connected to the right bolt on the top of the mounting plate (6). The snap-fit ​​mechanism is connected to the mounting frame (1).

2. The height-adjustable combustible gas detection device according to claim 1, characterized in that, The locking mechanism includes an electric push rod (12), a transmission frame (13), a rack (14) and a pinion (15). The protrusion at the output end of the electric push rod (12) is slidably connected to the sliding hole of the transmission frame (13). The transmission frame (13) is bolted to the rack (14). The end of the rotating rod (3) away from the reduction motor (2) is keyed to the shaft of the pinion (15).

3. The height-adjustable combustible gas detection device according to claim 2, characterized in that, The surface of the electric actuator (12) is bolted to the inner side of the mounting frame (1), and the transmission frame (13) is rotatably connected to the mounting frame (1). The transmission frame (13) has an L-shaped structure.

4. The height-adjustable combustible gas detection device according to claim 1, characterized in that, Mounting ears are welded around the top of the mounting frame (1), and the geared motor (2) is bolted to the mounting frame (1).

5. The height-adjustable combustible gas detection device according to claim 1, characterized in that, The surface of the stabilizing rope (9) is slidably connected to a guide wheel (10), and a connecting shaft (11) is keyed to the axis of the guide wheel (10). Both ends of the connecting shaft (11) are rotatably connected to the inside of the mounting frame (1).

6. The height-adjustable combustible gas detection device according to claim 5, characterized in that, The mounting frame (1) is internally connected to a limiting roller (16), and there are three limiting rollers (16), which are distributed on both sides of the winding wheel (4) and the right side of the guide wheel (10).

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