Condensed aerosol fire extinguishing device convenient to maintain
The mechanical transmission design of the plug-in docking frame and locking components solves the problem of complex bolt disassembly during the maintenance of thermal aerosol fire extinguishing devices, enabling fast and stable installation and disassembly, and improving maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-31
AI Technical Summary
Existing thermal aerosol fire extinguishing devices require repeated bolt removal during maintenance, which makes the operation complex and time-consuming, affecting maintenance efficiency.
It adopts a plug-in docking frame and rectangular plug structure, combined with the mechanical transmission design of the locking component. Through the knob driving the bevel gear meshing transmission and the threaded rod pushing the plug rod to extend and retract, it can quickly lock and unlock, simplifying the installation and disassembly process.
It significantly shortens maintenance time, reduces operational complexity, ensures device stability, prevents loosening and detachment, simplifies operation procedures, and allows disassembly and assembly to be completed without professional tools.
Smart Images

Figure CN224056521U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire extinguishing device technology, specifically to a thermal aerosol fire extinguishing device that is easy to maintain. Background Technology
[0002] Thermal aerosol fire extinguishing systems are advanced firefighting equipment that utilizes thermal aerosol technology to rapidly extinguish fires. This device heats the extinguishing agent to generate tiny aerosol particles, which effectively cover and isolate the burning material, thus extinguishing the fire. Due to their high fire extinguishing efficiency and environmentally friendly characteristics, thermal aerosol fire extinguishing systems are widely used in various fields, including industry, commerce, and homes.
[0003] Most thermal aerosol automatic fire extinguishing devices on the market currently have a shelf life of 4-6 years, such as the thermal aerosol automatic fire extinguishing device with application number 202010176377.8. Their service life is closely related to the storage environment. In practical use, to extend the device's shelf life, it is necessary to keep the device in a dry, well-ventilated environment with a suitable temperature. Furthermore, regular inspection and maintenance of the thermal aerosol fire extinguishing device are crucial, including checking whether the packaging is intact and whether the agent has expired.
[0004] However, existing thermal aerosol fire extinguishing devices are typically bolted to walls or equipment, requiring removal for maintenance and inspection. This process is not only time-consuming, but the repeated bolt removal and reinstallation is also inconvenient, reducing maintenance efficiency. Therefore, simplifying the installation and removal process of thermal aerosol fire extinguishing devices for quick and effective maintenance is a pressing issue. In light of this, we propose a maintenance-friendly thermal aerosol fire extinguishing device. Utility Model Content
[0005] The purpose of this invention is to provide a thermal aerosol fire extinguishing device that is easy to maintain, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An easy-to-maintain thermal aerosol fire extinguishing device includes a thermal aerosol fire extinguisher and a fixing plate for fixing to a wall. The fixing plate serves as the connection base between the device and the wall, ensuring overall stability. The front side of the fixing plate has two symmetrically arranged docking frames for accommodating rectangular inserts and achieving initial positioning. The surface of the thermal aerosol fire extinguisher has two docking brackets as transition supports connecting the fire extinguisher and the fixing plate. The rear side of each docking bracket has a rectangular insert, which is inserted into the docking frame. The rectangular insert mates with the docking frame through an insertion method, simplifying the installation steps. The front side of the fixing plate, located between the two docking frames, has a locking component for quickly locking or removing the thermal aerosol fire extinguisher.
[0008] The locking assembly includes a rectangular fixing tube fixedly connected to the front side of the fixed mounting plate, serving as a rigid support shell for the transmission structure. The rectangular fixing tube is formed by welding a U-shaped plate and a rectangular plate together. A rotating rod is rotatably connected inside the rectangular fixing tube to transmit rotational power to threaded rods on both sides. A driven bevel gear is located on the outer wall of the rotating rod near the middle, meshing with a driving bevel gear to convert the power direction. A drive rod is rotatably connected to the middle of the bottom of the rectangular fixing tube, driving the entire locking mechanism manually. The top of the drive rod has a driving bevel gear that meshes with the driven bevel gear to convert vertical rotation into... The rotating rod has threaded rods at both ends, which drive the rectangular movable blocks to move laterally through threaded transmission. The outer walls of the two threaded rods are threaded with rectangular movable blocks, converting the rotational motion into linear motion. The opposite sides of the two rectangular movable blocks are provided with rectangular vertical plates for connecting the insertion rods and transmitting displacement. The opposite sides of the two rectangular vertical plates are provided with insertion rods near the top and bottom ends, which are directly inserted into the locking holes to achieve mechanical locking. The side of the rectangular insertion block has two locking holes arranged symmetrically, which cooperate with the insertion rods to complete the fixation. The insertion rods pass through the side of the docking frame and are inserted into the locking holes.
[0009] Preferably, the rectangular fixed tube is provided with two positioning partitions arranged symmetrically on the left and right sides. The left and right ends of the rotating rod pass through the opposite sides of the two positioning partitions respectively, separating the transmission space and supporting the axial position of the rotating rod.
[0010] Preferably, a first bearing is provided at the connection between the rotating rod and the positioning partition. The outer ring of the first bearing is fixedly connected to the positioning partition, and the inner ring of the first bearing is fixedly connected to the rotating rod, thereby reducing the frictional resistance when the rotating rod rotates.
[0011] Preferably, frame-shaped rubber pads are embedded at both ends of the inner wall of the rectangular fixed tube, and the inner wall of the frame-shaped rubber pads is tightly fitted with the outer wall of the rectangular movable block to seal the movement path of the rectangular movable block.
[0012] Preferably, the bottom of the rectangular fixing tube is provided with a U-shaped bracket to fix the drive rod and limit its radial displacement. The bottom end of the drive rod passes through the bottom of the inner wall of the U-shaped bracket and is fixedly connected to a knob for easy manual locking or unlocking.
[0013] Preferably, the front side of the fixed mounting plate has multiple mounting holes for bolts to pass through so that the fixed mounting plate is fixed to the wall. The front side of the fixed mounting plate and the middle of the bottom edge has a clearance opening. The knob is located in front of the clearance opening to provide operating space for the knob and prevent interference.
[0014] Preferably, a second bearing is provided at the connection between the drive rod and the U-shaped bracket. The outer ring of the second bearing is fixedly connected to the U-shaped bracket, and the inner ring of the second bearing is fixedly connected to the drive rod, so as to ensure smooth rotation of the drive rod and reduce wear.
[0015] Preferably, a rubber ring is provided at the connection between the drive rod and the rectangular fixed tube, and the inner wall of the rubber ring is tightly fitted with the outer wall of the drive rod to prevent dust from entering the interior of the rectangular fixed tube and affecting the transmission.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This easy-to-maintain thermal aerosol fire extinguishing device adopts a plug-in docking frame and rectangular plug structure, combined with the mechanical transmission design of the locking component, so that the device can be installed or disassembled without repeatedly removing bolts, which significantly shortens the maintenance time and reduces the complexity of operation.
[0018] 2. This easy-to-maintain thermal aerosol fire extinguishing device uses a linkage mechanism of knob-driven bevel gear meshing transmission and threaded rod pushing the insertion rod to achieve rapid locking and unlocking of the thermal aerosol fire extinguisher, ensuring the stability of the device in fire extinguishing scenarios and preventing accidental detachment due to loosening.
[0019] 3. This easy-to-maintain thermal aerosol fire extinguishing device features a frame-shaped rubber pad and rubber ring design that effectively prevents dust from entering the transmission components, reducing frictional wear; the combination of the clearance opening and the U-shaped bracket optimizes the manual operation space, further reducing the risk of human-caused damage during maintenance.
[0020] 4. This easy-to-maintain thermal aerosol fire extinguishing device uses a knob to control the opening and closing of the locking component, simplifying the operation process. It can be disassembled and assembled without professional tools, making it suitable for staff to quickly handle emergency maintenance needs. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the thermal aerosol fire extinguisher structure in this utility model;
[0024] Figure 4 This is a partial structural schematic diagram of the present invention;
[0025] Figure 5 This is a cross-sectional structural diagram of the locking component in this utility model;
[0026] Figure 6 This is a partial structural diagram of the locking component in this utility model;
[0027] Figure 7 This is a schematic diagram of the assembly structure of the rectangular movable block and the rectangular vertical plate in this utility model;
[0028] In the diagram: 1. Fixed mounting plate; 10. Mounting hole; 11. Clearance opening; 2. Docking frame; 3. Thermal aerosol fire extinguisher; 30. Docking bracket; 31. Rectangular insert; 310. Locking hole; 4. Locking assembly; 40. Rectangular fixing tube; 400. U-shaped bracket; 41. Rotating rod; 410. Driven bevel gear; 42. Threaded rod; 43. Rectangular movable block; 44. Rectangular vertical plate; 440. Insert rod; 45. Drive rod; 450. Driven bevel gear; 451. Knob; 46. Positioning partition; 47. First bearing; 48. Second bearing; 49. Frame-shaped rubber pad; 490. Rubber ring. Detailed Implementation
[0029] 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.
[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0031] Example 1: Please refer to Figures 1-7 A preferred embodiment of this utility model provides a heat aerosol fire extinguishing device that is easy to maintain, including a heat aerosol fire extinguisher 3 and a fixing plate 1 for fixing to a wall. The fixing plate 1 serves as the connection base between the device and the wall, ensuring overall stability. The front side of the fixing plate 1 is provided with two docking frames 2 arranged symmetrically to accommodate rectangular inserts 31 and achieve initial positioning. The surface of the heat aerosol fire extinguisher 3 is provided with two docking brackets 30, which serve as transition supports connecting the fire extinguisher and the fixing plate 1. The rear side of each of the two docking brackets 30 is provided with rectangular inserts 31, which are inserted into the docking frames 2. The rectangular inserts 31 cooperate with the docking frames 2 by plugging them in, simplifying the installation steps. The front side of the fixing plate 1 and the position between the two docking frames 2 are provided with a locking component 4 for quickly locking or removing the heat aerosol fire extinguisher 3.
[0032] The locking assembly 4 includes a rectangular fixing tube 40 fixedly connected to the front side of the fixing plate 1, serving as a rigid support shell for the transmission structure. The rectangular fixing tube 40 is formed by welding a U-shaped long plate and a rectangular long plate together. A rotating rod 41 is rotatably connected inside the rectangular fixing tube 40 to transmit rotational power to the threaded rods 42 on both sides. A driven bevel gear 410 is provided on the outer wall of the rotating rod 41 near the middle, which meshes with the driving bevel gear 450 to realize the conversion of power direction. A drive rod 45 is rotatably connected to the middle of the bottom of the rectangular fixing tube 40, which drives the entire locking mechanism by manual operation. The top of the drive rod 45 is provided with a driving bevel gear 450 that meshes with the driven bevel gear 410 to convert vertical rotation into horizontal rotation. The rotating rod 41 has threaded rods 42 at both ends, which drive the rectangular movable block 43 to move laterally through the threaded transmission. The outer walls of the two threaded rods 42 are threaded with rectangular movable blocks 43, converting the rotational motion into linear motion. The opposite sides of the two rectangular movable blocks 43 are provided with rectangular vertical plates 44 for connecting the insertion rod 440 and transmitting displacement. The opposite sides of the two rectangular vertical plates 44 are provided with insertion rods 440 near the top and bottom ends, which are directly inserted into the locking holes 310 to achieve mechanical locking. The side of the rectangular insertion block 31 has two locking holes 310 arranged symmetrically, which cooperate with the insertion rod 440 to complete the fixation. The insertion rod 440 passes through the side of the docking frame 2 and is inserted into the locking hole 310.
[0033] Example 2: A preferred embodiment of this utility model provides a thermal aerosol fire extinguishing device that is easy to maintain. The only difference between this embodiment and the one described above is that: two positioning partitions 46 are provided inside the rectangular fixed tube 40, which are arranged symmetrically on the left and right sides. The left and right ends of the rotating rod 41 pass through the opposite sides of the two positioning partitions 46, which separate the transmission space and support the axial position of the rotating rod 41.
[0034] Specifically, a first bearing 47 is provided at the connection between the rotating rod 41 and the positioning partition 46. The outer ring of the first bearing 47 is fixedly connected to the positioning partition 46, and the inner ring of the first bearing 47 is fixedly connected to the rotating rod 41, thereby reducing the frictional resistance when the rotating rod 41 rotates.
[0035] Furthermore, frame-shaped rubber pads 49 are embedded at both ends of the inner wall of the rectangular fixed tube 40. The inner wall of the frame-shaped rubber pads 49 is tightly fitted with the outer wall of the rectangular movable block 43, sealing the movement path of the rectangular movable block 43.
[0036] Furthermore, the bottom of the rectangular fixing tube 40 is provided with a U-shaped bracket 400, which fixes the drive rod 45 and restricts its radial displacement. The bottom end of the drive rod 45 passes through the bottom of the inner wall of the U-shaped bracket 400 and is fixedly connected to a knob 451, which facilitates manual operation for locking or unlocking.
[0037] Furthermore, the front side of the fixed mounting plate 1 has multiple mounting holes 10 for bolts to pass through so that the fixed mounting plate 1 is fixed to the wall. The front side of the fixed mounting plate 1 and the middle of the bottom edge has a clearance opening 11. The knob 451 is located in front of the clearance opening 11 to provide operating space for the knob 451 and prevent interference.
[0038] Furthermore, a second bearing 48 is provided at the connection between the drive rod 45 and the U-shaped bracket 400. The outer ring of the second bearing 48 is fixedly connected to the U-shaped bracket 400, and the inner ring of the second bearing 48 is fixedly connected to the drive rod 45, ensuring smooth rotation of the drive rod 45 and reducing wear.
[0039] Example 3: A preferred embodiment of this utility model provides a thermal aerosol fire extinguishing device that is easy to maintain. The only difference between this embodiment and the one described above is that a rubber ring 490 is provided at the connection between the drive rod 45 and the rectangular fixed tube 40. The inner wall of the rubber ring 490 is tightly fitted with the outer wall of the drive rod 45 to prevent dust from entering the interior of the rectangular fixed tube 40 and affecting the transmission.
[0040] In this embodiment of the easy-to-maintain thermal aerosol fire extinguishing device, during use, the fixing plate 1 is first fixed to the wall with bolts through the mounting hole 10. Then, the rectangular insert 31 on the rear side of the docking bracket 30 of the thermal aerosol fire extinguisher 3 is aligned with the docking frame 2 and inserted to complete the initial positioning. At this time, the locking component 4 is operated: the knob 451 is manually rotated to drive the drive rod 45 to rotate. The active bevel gear 450 at the top of the drive rod 45 meshes with the driven bevel gear 410 on the rotating rod 41, converting the vertical rotation into a horizontal rotation. The drive rotating rod 41 drives the threaded rods 42 on both sides to rotate synchronously. The rotation of the threaded rods 42 pushes the rectangular movable block 43 to move laterally along the inner wall of the rectangular fixed tube 40. The rectangular movable block 43 passes through the rectangular vertical plate 4. 4. The insertion rod 440 extends outward, passing through the side wall of the docking frame 2 and inserting into the locking hole 310 of the rectangular insertion block 31, completing the mechanical locking. During this process, the positioning partition 46 provides axial support for the rotating rod 41, the first bearing 47 and the second bearing 48 reduce the frictional resistance between the rotating rod 41 and the drive rod 45, respectively, and the frame-shaped rubber pad 49 and the rubber ring 490 prevent dust from entering the interior of the rectangular fixed tube 40. When maintenance is required, the knob 451 is rotated in the opposite direction to retract the insertion rod 440 and disengage it from the locking hole 310, so that the thermal aerosol fire extinguisher 3 can be pulled out from the docking frame 2. The clearance opening 11 provides space for the operation of the knob 451, and the U-shaped bracket 400 ensures the radial stability of the drive rod 45 when it rotates.
[0041] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.
Claims
1. A maintenance-friendly thermal aerosol fire extinguishing device, comprising a thermal aerosol fire extinguisher (3) and a mounting plate (1) for fixing to a wall, characterized in that: The front side of the fixed mounting plate (1) is provided with two docking frames (2) arranged symmetrically on the left and right. The surface of the thermal aerosol fire extinguisher (3) is provided with two docking brackets (30). The rear side of each docking bracket (30) is provided with a rectangular insert (31). The rectangular insert (31) is inserted into the docking frame (2). The front side of the fixed mounting plate (1) and the position between the two docking frames (2) is provided with a locking component (4). The locking component (4) includes a rectangular fixing tube (40) fixedly connected to the front side of the fixed mounting plate (1). A rotating rod (41) is rotatably connected inside the rectangular fixing tube (40). A driven bevel gear (410) is provided on the outer wall of the rotating rod (41) near the middle. The rectangular fixing tube (40) A drive rod (45) is rotatably connected to the middle of the bottom. The top of the drive rod (45) is provided with an active bevel gear (450) that meshes with the driven bevel gear (410). Both ends of the rotating rod (41) are provided with threaded rods (42). The outer walls of the two threaded rods (42) are threaded with rectangular movable blocks (43). The opposite sides of the two rectangular movable blocks (43) are provided with rectangular vertical plates (44). The opposite sides of the two rectangular vertical plates (44) and near the upper and lower ends are provided with insert rods (440). The side of the rectangular insert (31) has two locking holes (310) arranged symmetrically in the upper and lower positions. The insert rod (440) passes through the side of the docking frame (2) and is inserted into the locking hole (310).
2. The easy-to-maintain thermal aerosol fire extinguishing device according to claim 1, characterized in that: The rectangular fixed tube (40) is provided with two positioning partitions (46) arranged symmetrically on the left and right sides. The left and right ends of the rotating rod (41) pass through the opposite sides of the two positioning partitions (46).
3. The easy-to-maintain thermal aerosol fire extinguishing device according to claim 2, characterized in that: A first bearing (47) is provided at the connection between the rotating rod (41) and the positioning partition (46). The outer ring of the first bearing (47) is fixedly connected to the positioning partition (46), and the inner ring of the first bearing (47) is fixedly connected to the rotating rod (41).
4. The easy-to-maintain thermal aerosol fire extinguishing device according to claim 1, characterized in that: The inner walls of the rectangular fixed tube (40) are fitted with frame-shaped rubber pads (49) at both ends, and the inner walls of the frame-shaped rubber pads (49) are tightly fitted with the outer walls of the rectangular movable block (43).
5. The easy-to-maintain thermal aerosol fire extinguishing device according to claim 1, characterized in that: The bottom of the rectangular fixed tube (40) is provided with a U-shaped bracket (400), and the bottom end of the drive rod (45) passes through the bottom of the inner wall of the U-shaped bracket (400) and is fixedly connected with a knob (451).
6. The easy-to-maintain thermal aerosol fire extinguishing device according to claim 5, characterized in that: The fixed mounting plate (1) has multiple mounting holes (10) on its front side, and a clearance opening (11) is provided on the front side of the fixed mounting plate (1) at the middle of its bottom edge. The knob (451) is located in front of the clearance opening (11).
7. The easy-to-maintain thermal aerosol fire extinguishing device according to claim 5, characterized in that: A second bearing (48) is provided at the connection between the drive rod (45) and the U-shaped bracket (400). The outer ring of the second bearing (48) is fixedly connected to the U-shaped bracket (400), and the inner ring of the second bearing (48) is fixedly connected to the drive rod (45).
8. The easy-to-maintain thermal aerosol fire extinguishing device according to claim 1, characterized in that: A rubber ring (490) is provided at the connection between the drive rod (45) and the rectangular fixed tube (40), and the inner wall of the rubber ring (490) is tightly fitted with the outer wall of the drive rod (45).
Citation Information
Patent Citations
Hot aerosol automatic fire extinguishing device
CN111388917A