Mounting structure of building fire alarm device

Abstract

The utility model discloses a mounting structure of a building fire alarm device, a mounting plate is arranged at the top of a fixing seat of the building fire alarm device, the building fire alarm device is detachably connected with the mounting structure above the building fire alarm device through the mounting plate, and the mounting structure comprises the mounting seat, a lifting mechanism and a dismounting mechanism; the lifting mechanism comprises a winding roller rotationally mounted at the bottom of the mounting seat, a lifting rope is mounted on the winding roller in a winding manner, and the lifting rope overhangs downwards and is connected with the frame of the dismounting mechanism; a left positioning block and a right positioning block are arranged in a frame of the dismounting mechanism, the opposite sides of the two positioning blocks are the inner sides, the opposite sides of the two positioning blocks are the outer sides, a left positioning groove and a right positioning groove are formed in a mounting plate, and the left positioning block and the right positioning block are located at the outer limit positions through an elastic component and are embedded into the two positioning grooves in the mounting plate correspondingly. And detachable connection between the mounting plate and the dismounting mechanism is realized. The building fire alarm device has the advantage that the building fire alarm device can be conveniently disassembled and assembled without climbing operation.

Description

Technical Field

[0001] This utility model relates to the technical field of building fire alarm devices, specifically to an installation structure for a building fire alarm device. Background Technology

[0002] Fire alarm devices are one of the most important means of preventing fires. Their function is to detect when a large amount of smoke causes a fire and trigger an alarm. They are generally installed in corridors, stairwells and other places where people frequently enter and exit. They are characterized by low power consumption, long lifespan, selectable audible alarm tone, and flexible and convenient installation.

[0003] However, existing fire alarm devices are generally installed in the ceiling indoors by fixing them with screws. When damaged, they are not easy to disassemble or install quickly, and maintenance is inconvenient. Moreover, because they are installed at a high position, maintenance requires the use of ladders for climbing, which is inconvenient and poses safety hazards. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an installation structure for a building fire alarm device that allows for convenient installation and disassembly of the building fire alarm device without the need for working at height.

[0005] This utility model is achieved through the following technical solution:

[0006] An installation structure for a building fire alarm device, the building fire alarm device including a fixed base, the fixed base of the building fire alarm device having an installation plate on top, the building fire alarm device being detachably connected to the installation structure above through the installation plate, the installation structure including an installation base, a lifting mechanism, and a disassembly mechanism;

[0007] The lifting mechanism includes a roller rotatably mounted at the bottom of the mounting base. The roller is driven to rotate by a drive mechanism. A lifting rope is wound around the roller. One end of the lifting rope is fixed to the roller, and the other end of the lifting rope extends downward and is connected to the disassembly and assembly mechanism.

[0008] The assembly and disassembly mechanism includes a frame, with the top of the frame suspended by a rope. Inside the frame are two positioning blocks, one on the left and one on the right. The side opposite to the two positioning blocks is the inner side, and the side facing away from each other is the outer side. The mounting plate has two positioning grooves, one on the left and one on the right. Through an elastic component, the two positioning blocks are positioned at their outer limit positions and respectively engage with the two positioning grooves on the mounting plate, thus realizing the detachable connection between the mounting plate and the assembly and disassembly mechanism.

[0009] As a preferred embodiment of the above-mentioned installation structure, in the disassembly and assembly mechanism, two positioning blocks are respectively fixed on their respective horizontal plates. Two sliding rods are fixed inside the frame, each extending left and right. Each horizontal plate is slidably mounted on the two sliding rods by two sliders. A protruding collar is provided in the middle section of the sliding rod. Springs are slidably mounted on the left and right sections of the sliding rod. The springs on the left and right sections of each sliding rod elastically press the two horizontal plates outward, so that the two horizontal plates are far apart from each other and are in the outer limit position, thereby making the two positioning blocks in the outer limit position.

[0010] As a preferred embodiment of the above-mentioned installation structure, the front sides of the two horizontal plates are respectively provided with forward-protruding extension rods, and the front side of the frame has two left and right sliding grooves. The extension rods of the two horizontal plates are respectively slidably engaged with the two sliding grooves of the frame. The extension rods can slide left and right in the corresponding sliding grooves. The front end of the extension rod extends out of the sliding groove and is provided with a force plate. The vertical dimension of the force plate is greater than the width of the sliding groove.

[0011] As a preferred embodiment of the above-mentioned installation structure, the top of the mounting plate is provided with two mounting frames on the left and right, and two positioning slots are respectively opened inside the two mounting frames.

[0012] As a preferred embodiment of the above-mentioned installation structure, the lifting mechanism further includes a housing fixed to the bottom of the mounting base. The roller and the drive mechanism are both located in the inner cavity of the housing. The drive mechanism includes a motor and meshing active bevel gear and driven bevel gear. The active bevel gear is fixed on the output shaft of the motor, and the driven bevel gear is fixed on the roller. A through hole is provided at the bottom of the inner cavity of the housing for the hanging rope to pass through downwards.

[0013] As a preferred embodiment of the above-mentioned installation structure, guide mechanisms are provided on the left and right sides of the frame. Each guide mechanism includes two sets of guide components arranged in front and behind. Each set of guide components includes a sliding column, a first sliding sleeve, and a second sliding sleeve that are slidably fitted together from bottom to top. The bottom of the sliding column is fixed to the side wall of the frame by an ear plate, and the top of the second sliding sleeve is fixed to the bottom of the mounting base. The sliding column and the first sliding sleeve, and the first sliding sleeve and the second sliding sleeve are respectively slidably fitted by a limiting protrusion and a limiting groove to achieve sliding limit.

[0014] This invention has the following advantages over the prior art:

[0015] This utility model provides an installation structure for a building fire alarm device. By setting up a lifting mechanism, the height of the building fire alarm device can be adjusted, allowing it to meet the usage needs at different heights. Furthermore, maintenance work on the building fire alarm device can be carried out without the need for climbing, eliminating safety hazards. Simultaneously, a disassembly and assembly mechanism is provided. Through the elastic engagement of two positioning blocks and two positioning slots, the building fire alarm device and the installation structure can be detached and installed. The disassembly or installation process can be achieved simply by pressing or releasing two force plates, making the process convenient and quick, facilitating the maintenance or replacement of the building fire alarm device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation structure of the building fire alarm device and the installation structure of this utility model.

[0017] Figure 2 yes Figure 1 A structural diagram from another perspective.

[0018] Figure 3 This is a structural schematic diagram of the lifting mechanism of this utility model.

[0019] Figure 4 This is a schematic diagram of the disassembly and assembly mechanism of this utility model.

[0020] Figure 5 This is a structural diagram showing the disassembly of the building fire alarm device and the installation structure of this utility model.

[0021] The following numbers are labeled in the diagram: 1. Building fire alarm device; 2. Fixed base; 3. Mounting plate; 4. Mounting base; 5. Lifting mechanism; 6. Disassembly and assembly mechanism; 7. Roller; 8. Drive shaft; 9. Hoisting rope; 10. Hanging seat; 11. Frame; 12. Housing; 13. Connecting frame; 14. Motor; 15. Driving bevel gear; 16. Driven bevel gear; 17. Sliding column; 18. First sliding sleeve; 19. Second sliding sleeve; 20. Ear plate; 21. Limiting protrusion; 22. Limiting groove; 23. Positioning block; 24. Positioning groove; 25. Mounting frame; 26. Horizontal plate; 27. Sliding rod; 28. Sliding block; 29. ​​L-shaped side frame; 30. Collar; 31. Spring; 32. Extension rod; 33. Slide groove; 34. Force plate. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0023] See Figures 1 to 5This embodiment discloses an installation structure for a building fire alarm device. The building fire alarm device 1 includes a fixed base 2. The fixed base 2 of the building fire alarm device 1 is provided with an installation plate 3 on its top. The building fire alarm device 1 is detachably connected to the installation structure above through the installation plate 3. The installation structure includes an installation base 4, a lifting mechanism 5, and a disassembly and assembly mechanism 6.

[0024] The lifting mechanism 5 includes a roller 7 rotatably mounted on the bottom of the mounting base 4. The roller 7 is fixed on the drive shaft 8 and is driven to rotate by the drive mechanism. A suspension rope 9, made of steel wire rope, is wound around the roller 7. One end of the suspension rope 9 is fixed to the roller 7, and the other end of the suspension rope 9 extends downward and is connected to the frame 11 of the disassembly and assembly mechanism 6 through the suspension seat 10. A housing 12 is fixed to the bottom of the mounting base 4. The roller 7 and the drive mechanism are both located inside the housing 12. The two ends of the drive shaft 8 are rotatably mounted on two connecting brackets 13 inside the housing 12 through bearings. The drive mechanism includes a motor 14 and meshing drive bevel gears 15 and 16. The drive bevel gear 15 is fixed on the output shaft of the motor 14, and the 16 is fixed on the drive shaft 8 of the roller 7. A through hole is opened at the bottom of the housing 12 for the suspension rope 9 to pass through downward.

[0025] Guide mechanisms are provided on both the left and right sides of the frame 11. Each guide mechanism includes two sets of guide components arranged front and back. Each set of guide components includes a sliding column 17, a first sliding sleeve 18, and a second sliding sleeve 19, which are slidably fitted together from bottom to top. The bottom of the sliding column 17 is fixed to the side wall of the frame 11 by the ear plate 20, and the top of the second sliding sleeve 19 is fixed to the bottom of the mounting base 4. The sliding column 17 and the first sliding sleeve 18, and the first sliding sleeve 18 and the second sliding sleeve 19 are respectively slidably limited by the limiting protrusion 21 and the limiting groove 22. The cooperation of the limiting protrusion 21 and the limiting groove 22 can prevent the sliding column 17 from slipping off the first sliding sleeve 18, and the first sliding sleeve 18 from slipping off the second sliding sleeve 19. By setting four sets of guide components, the vertical lifting and lowering process of the frame 11 driven by the suspension rope 9 is guided, ensuring the stability of the frame 11 during vertical lifting and lowering.

[0026] The disassembly / assembly mechanism 6 includes a frame 11, the top of which is suspended by a rope 9. Inside the frame 11 are two positioning blocks 23, one on each side. The side of the two positioning blocks 23 facing each other is the inner side, and the side facing away from each other is the outer side. The mounting plate 3 has two positioning grooves 24, and the top of the mounting plate 3 has two mounting frames 25, with the positioning grooves 24 respectively located inside the two mounting frames 25. An elastic component allows the two positioning blocks 23 to be positioned at their outer limits and engage with the two positioning grooves 24 on the mounting plate 3, thus achieving a detachable connection between the mounting plate 3 and the disassembly / assembly mechanism 6.

[0027] In the disassembly and assembly mechanism 6, two positioning blocks 23 are fixed on their respective horizontal plates 26. Two sliding rods 27 are fixed inside the frame 11. Each sliding rod 27 extends left and right. Each horizontal plate 26 is slidably fitted onto the two sliding rods 27 by two sliders 28. Each positioning block 23 is fixed to the bottom of the two sliders 28 of the horizontal plate 26 by two L-shaped side brackets 29 set on the inner side. A protruding collar 30 is provided in the middle section of the sliding rod 27. Springs 31 are slidably fitted on the left and right sections of the sliding rod 27. The two ends of the springs 31 elastically press against the collar 30 and the sliders 28 of the corresponding side horizontal plate 26. The two springs 31 on the left and right sections of each sliding rod 27 elastically press against the two horizontal plates 26 outward, so that the two horizontal plates 26 are far apart from each other and in the outer limit position, thereby making the two positioning blocks 23 in the outer limit position. The front sides of the two horizontal plates 26 are respectively provided with forward-protruding extension rods 32, and the front side of the frame 11 has two left and right sliding grooves 33. The extension rods 32 of the two horizontal plates 26 are respectively slidably engaged with the two sliding grooves 33 of the frame 11. The extension rods 32 can slide left and right in the corresponding sliding grooves 33. The front end of the extension rods 32 extends out of the sliding grooves 33 and is provided with a force plate 34. The vertical dimension of the force plate 34 is greater than the width of the sliding grooves 33.

[0028] During installation, the mounting base 4 of the mounting structure is fixed to the ceiling indoors using screws. Under normal operation, the building fire alarm device 1 is in a high position. When the operating height of the building fire alarm device 1 needs to be adjusted or it needs to be replaced or repaired, the motor 14 is started. The motor 14 drives the driving bevel gear 15 to rotate, causing the driven bevel gear 16, which meshes with the driving bevel gear 15, to rotate. This, in turn, drives the transmission shaft 8 to rotate, which in turn drives the roller 7 to rotate. The rotating roller 7 causes the suspension rope 9 and the hanging base 10 to move downwards. Simultaneously, the hanging base 10 drives the frame 11 and the fixed base 2 to move synchronously, thus moving the building fire alarm device 1 to a suitable height position. This facilitates the use of the building fire alarm device 1 at different heights or allows for its replacement or repair, thereby greatly improving the effectiveness of the building fire alarm device 1. When it is necessary to replace or repair the components on the building fire alarm device 1, the fixing base 2 can be lowered to a suitable height first. Then, the workers can pull the two left and right force plates 34, causing them to gradually approach each other. This causes the two horizontal plates 26 to slide towards each other on the slide rod 27. The two springs 31 on the slide rod 27 are compressed, and at the same time, the L-shaped side frame 29 drives the two positioning blocks 23 to approach each other, causing the two positioning blocks 23 to gradually disengage from the positioning slots 24 in the two positioning frames. This makes it easier to remove the building fire alarm device 1 from the frame 11. By reinserting the two mounting frames 25 on the mounting plate 3 into the frame 11 and then releasing the two force plates 34, the two horizontal plates 26 can be automatically pushed outward by the rebound effect of the two springs 31. This causes the two positioning blocks 2358 to move outward and directly insert into the positioning slots 24 in the two positioning frames. The elastic pushing force of the two springs 31 improves the installation stability of the building fire alarm device 1, ensuring its normal operation.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An installation structure for a building fire alarm device, the building fire alarm device comprising a mounting base, characterized in that: The building fire alarm device has a mounting plate on the top of its mounting base. The building fire alarm device is detachably connected to the mounting structure above it via the mounting plate. The mounting structure includes a mounting base, a lifting mechanism, and a disassembly mechanism. The lifting mechanism includes a roller rotatably mounted at the bottom of the mounting base. The roller is driven to rotate by a drive mechanism. A lifting rope is wound around the roller. One end of the lifting rope is fixed to the roller, and the other end of the lifting rope extends downward and is connected to the disassembly and assembly mechanism. The assembly and disassembly mechanism includes a frame, with the top of the frame suspended by a rope. Inside the frame are two positioning blocks, one on the left and one on the right. The side opposite to the two positioning blocks is the inner side, and the side facing away from each other is the outer side. The mounting plate has two positioning grooves, one on the left and one on the right. Through an elastic component, the two positioning blocks are positioned at their outer limit positions and respectively engage with the two positioning grooves on the mounting plate, thus realizing the detachable connection between the mounting plate and the assembly and disassembly mechanism.

2. The installation structure of a building fire alarm device as described in claim 1, characterized in that: In the assembly / disassembly mechanism, two positioning blocks are fixed to their respective horizontal plates. Two sliding rods are fixed inside the frame, each extending left and right. Each horizontal plate is slidably mounted on the two sliding rods via two sliders. A protruding collar is provided in the middle section of the sliding rod. Springs are slidably mounted on the left and right sections of the sliding rod. The springs on the left and right sections of each sliding rod elastically press the two horizontal plates outward, causing the two horizontal plates to move away from each other and reach the outer limit position, thereby causing the two positioning blocks to be at the outer limit position.

3. The installation structure of a building fire alarm device as described in claim 2, characterized in that: The two horizontal plates are each provided with a forward-protruding extension rod on the front side. The front side of the frame has two sliding grooves on the left and right. The extension rods of the two horizontal plates are respectively slidably engaged with the two sliding grooves of the frame. The extension rods can slide left and right in the corresponding sliding grooves. The front end of the extension rod extends out of the sliding groove and is provided with a force plate. The vertical dimension of the force plate is greater than the width of the sliding groove.

4. The installation structure of a building fire alarm device as described in claim 1, characterized in that: The mounting plate has two mounting frames on the top, one on the left and one on the right, and two positioning slots are respectively opened inside the two mounting frames.

5. The installation structure of a building fire alarm device as described in claim 1, characterized in that: The lifting mechanism also includes a housing fixed to the bottom of the mounting base. The roller and the drive mechanism are both located in the inner cavity of the housing. The drive mechanism includes a motor and meshing active bevel gear and driven bevel gear. The active bevel gear is fixed on the output shaft of the motor, and the driven bevel gear is fixed on the roller. A through hole is opened at the bottom of the inner cavity of the housing for the hanging rope to pass through downward.

6. The installation structure of a building fire alarm device as described in claim 1, characterized in that: The frame is provided with guide mechanisms on the left and right sides respectively. Each guide mechanism includes two sets of guide components arranged in front and behind. Each set of guide components includes a sliding column, a first sliding sleeve, and a second sliding sleeve that are slidably fitted together from bottom to top. The bottom of the sliding column is fixed to the side wall of the frame by an ear plate, and the top of the second sliding sleeve is fixed to the bottom of the mounting base. The sliding column and the first sliding sleeve, and the first sliding sleeve and the second sliding sleeve are respectively slidably fitted by a limiting protrusion and a limiting groove to achieve sliding limit.

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