Smoke sensing device convenient to position and assemble

Abstract

The utility model relates to the technical field of fire alarm, and discloses a smoke sensing device convenient to position and assemble, which comprises a smoke sensor, a detection port is arranged at the bottom end of the smoke sensor, and a protection assembly for preventing dust from entering the detection port is arranged at the bottom of the smoke sensor. Limiting grooves are formed in the tops of the two sides of the smoke sensor, limiting blocks are connected into the limiting grooves in a clamped mode, and a clamping ring is connected to the top of the smoke sensor in a clamped mode; by pushing one supporting assembly and a gear, two rotating shafts can rotate in opposite directions, two limiting blocks can be driven at the same time, the distance between the two limiting blocks is increased, a torsional spring can be compressed, the smoke sensor can be conveniently positioned and assembled, operation is simple, the clamping ring can limit the smoke sensor in the horizontal direction, the limiting blocks can limit the smoke sensor in the vertical direction, and the smoke sensor can be conveniently positioned and assembled. The smoke sensor is not easy to loosen and fall off under horizontal force and has good stability.

Description

Technical Field

[0001] This utility model relates to the field of fire alarm technology, specifically a smoke detector that is easy to position and assemble. Background Technology

[0002] A smoke detector is a fire protection device used to detect smoke and issue an alarm. It is mainly used for fire prevention. It realizes fire early warning by monitoring the concentration of smoke. It usually consists of two parts: a sensor and an alarm. The smoke detector can monitor the smoke concentration in the indoor environment in real time. Once the smoke concentration exceeds the set value, it will issue an alarm signal to remind people to take timely measures to prevent fire or escape from the fire.

[0003] The smoke detector disclosed in application number "202322817165.5" includes a mounting plate. Two mounting brackets are fixedly connected to the bottom of the mounting plate. A pull rod is slidably connected to each of the two mounting brackets. A pressing plate is fixedly connected to the top of each of the two pull rods. A connecting plate is engaged between each of the pressing plates and the mounting plate. The smoke detector body is fixedly connected between the two connecting plates. This invention allows for easy installation and disassembly of the smoke detector body by pulling down the pull rods on the mounting brackets, causing the pressing block to move downwards. Then, the connecting plate is placed inside the mounting brackets and abuts against the mounting plate. Releasing the pull rods allows the pressing block to reset under the action of a spring, thus clamping the connecting plate between the pressing block and the mounting plate.

[0004] However, the above method still has the following drawbacks: by resetting the spring compression block, the connecting plate can be clamped between the compression block and the mounting plate, and the installation of the smoke detector body can be completed. However, it is not convenient to limit the horizontal direction of the smoke detector body. The smoke detector body is prone to loosening and falling off when subjected to horizontal force, resulting in poor stability. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a smoke detector that is easy to position and assemble, and has the advantages of being less prone to loosening and falling off, and having good stability, thus solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a smoke detector device that is easy to position and assemble, including a smoke sensor, a detection port at the bottom of the smoke sensor, a protective component at the bottom of the smoke sensor, limit grooves at the top of both sides of the smoke sensor, a limit block engaging inside the limit groove, a retaining ring engaging at the top of the smoke sensor, a positioning plate fixed at the top of the retaining ring, two rotating shafts rotatably connected to one side of the bottom of the positioning plate, torsion springs sleeved on the surface of the rotating shafts, meshing gears fixed at the bottom of the rotating shafts, and a support component at the bottom of the rotating shafts.

[0007] As a preferred embodiment of the present invention, the protective component includes a protective cover, the top of which is fixedly provided with anti-slip ridges, and ventilation grooves are provided on both the surface and bottom of the protective cover, with a dustproof net fixedly provided on the surface of the ventilation grooves.

[0008] As a preferred technical solution of this utility model, the inner wall of the top of the protective cover is fixedly provided with internal threads, and the bottom of the smoke sensor is fixedly provided with a threaded ring. The protective cover is threadedly connected to the threaded ring through the internal threads.

[0009] As a preferred embodiment of this utility model, a wire-passing hole is provided at the middle of the top of the smoke sensor and at the middle of the positioning plate, a rubber pad is fixedly provided at the top of the positioning plate, and positioning holes are provided at the four corners of the positioning plate.

[0010] As a preferred embodiment of this utility model, one end of the torsion spring is engaged with a first retainer, which is fixedly connected to the top of the gear, and the other end of the torsion spring is engaged with a second retainer, which is fixedly connected to the bottom of the positioning plate.

[0011] As a preferred technical solution of this utility model, the support component includes a swing arm, one side of the top end of the swing arm is fixedly connected to the bottom end of the rotating shaft, the other side of the top end of the swing arm is fixedly provided with a hanging rod, the top end of the hanging rod is fixedly provided with a slider, and one side of the swing arm is fixedly connected to one side of the limiting block.

[0012] As a preferred embodiment of this utility model, the positioning plate is fixedly provided with support rails on both sides of its bottom end, and the slider is slidably connected to the support rails.

[0013] As a preferred embodiment of this utility model, channels are provided on both sides of the retaining ring, and the limiting block is slidably connected to the inside of the channel.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By pushing one of the support components, the gear can make the two rotating shafts rotate in opposite directions, which can drive the two limit blocks at the same time, increasing the distance between the two limit blocks and compressing the torsion spring, which facilitates the positioning and assembly of the smoke sensor. The operation is simple. The retaining ring can limit its horizontal direction, and the limit block can limit its vertical direction. The smoke sensor is not easy to loosen or fall off when subjected to horizontal force, and has good stability.

[0016] 2. The protective components provide protection for the bottom of the smoke sensor, preventing dust and foreign objects from entering the smoke sensor through the detection port, while ensuring air circulation. They are also easy to disassemble and clean, eliminating the need for a filter on the surface of the detection port and preventing clogging. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0018] Figure 2 This is the second structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the protective component of this utility model;

[0021] Figure 5 This is a schematic diagram of the positioning plate of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the support component of this utility model.

[0023] In the diagram: 1. Smoke sensor; 2. Snap ring; 3. Positioning plate; 4. Limiting groove; 5. Limiting block; 6. Channel; 7. Threaded ring; 8. Detection port; 9. Protective component; 901. Protective cover; 902. Internal thread; 903. Anti-slip ridge; 904. Ventilation groove; 905. Dustproof net; 10. Rotating shaft; 11. Gear; 12. Support component; 1201. Swing arm; 1202. Hanging rod; 1203. Slider; 13. Support rail; 14. Torsion spring; 15. Card holder one; 16. Card holder two; 17. Threading hole; 18. Positioning hole; 19. Rubber pad. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6A smoke detector for easy positioning and assembly includes a smoke sensor 1. The bottom of the smoke sensor 1 has a detection port 8. The bottom of the smoke sensor 1 has a protective component 9 to prevent dust from entering the detection port 8. The protective component 9 can protect the bottom of the smoke sensor 1, prevent dust and foreign objects from entering, and ensure air circulation. It is also easy to disassemble and clean. Limiting grooves 4 are opened on the top of both sides of the smoke sensor 1. Limiting blocks 5 are engaged inside the limiting grooves 4. A retaining ring 2 is engaged on the top of the smoke sensor 1. A positioning plate 3 is fixed on the top of the retaining ring 2. Two rotating shafts 10 are rotatably connected to one side of the bottom of the positioning plate 3. Torsion springs 14 are sleeved on the surface of the rotating shafts 10. Gears 11 that mesh with each other are fixed on the bottom of the rotating shafts 10. A support component 12 is provided at the bottom of the rotating shafts 10 to support the limiting blocks 5. By pushing one of the support components 12, the gears 11 can make the two rotating shafts 10 rotate in opposite directions, which can increase the distance between the two limiting blocks 5 and facilitate the positioning and assembly of the smoke sensor 1.

[0026] In this embodiment, preferably, the protective component 9 includes a protective cover 901. The top of the protective cover 901 is fixedly provided with an anti-slip protrusion 903, which facilitates the rotation of the protective cover 901. Both the surface and the bottom of the protective cover 901 are provided with ventilation grooves 904, which ensure air circulation. A dustproof net 905 is fixedly provided on the surface of the ventilation groove 904, which prevents dust and foreign objects from entering. An internal thread 902 is fixedly provided on the inner wall of the top of the protective cover 901. A threaded ring 7 is fixedly provided at the bottom of the smoke sensor 1. The protective cover 901 is threadedly connected to the threaded ring 7 through the internal thread 902. The threaded ring 7 and the internal thread 902 facilitate the installation and removal of the protective cover 901.

[0027] In this embodiment, preferably, the support assembly 12 includes a swing arm 1201. One side of the top end of the swing arm 1201 is fixedly connected to the bottom end of the rotating shaft 10. The other side of the top end of the swing arm 1201 is fixedly provided with a hanging rod 1202. The top end of the hanging rod 1202 is fixedly provided with a slider 1203. One side of the swing arm 1201 is fixedly connected to one side of the limiting block 5. The rotating shaft 10 can support the limiting block 5 through the swing arm 1201. Support rails 13 are fixedly provided on both sides of the bottom end of the positioning plate 3. The slider 1203 is slidably connected to the support rails 13. The support rails 13 and the slider 1203 can support and guide the hanging rod 1202. The hanging rod 1202 can improve the stability of the swing arm 1201.

[0028] In this embodiment, preferably, a wire hole 17 is provided at the middle of the top of the smoke sensor 1 and at the middle of the positioning plate 3. The smoke sensor 1 can be wired through the wire hole 17. A rubber pad 19 is fixedly provided at the top of the positioning plate 3. The rubber pad 19 can increase the firmness and stability between the positioning plate 3 and the mounting surface. Positioning holes 18 are provided at the four corners of the positioning plate 3. The positioning plate 3 can be fixedly installed through the positioning holes 18. One end of the torsion spring 14 is engaged with a first card seat 15. The first card seat 15 is fixedly connected to the top of the gear 11. The other end of the torsion spring 14 is engaged with a second card seat 16. The second card seat 16 is fixedly connected to the bottom end of the positioning plate 3. The first card seat 15 and the second card seat 16 can limit the torsion spring 14.

[0029] In this embodiment, preferably, channels 6 are provided on both sides of the retaining ring 2, and the limiting block 5 is slidably connected to the inside of the channel 6. The channel 6 can ensure that the movement of the limiting block 5 will not cause interference.

[0030] In use, the operator first fixes the positioning plate 3 to the top plate through the positioning hole 18, and passes the wire through the wire hole 17. Then, the smoke sensor 1 is wired. Next, the operator pushes the swing arm 1201 of one of the support components 12 to make it move in a circle along the rotating shaft 10 and compress the torsion spring 14. This drives the two limit blocks 5 at the same time, increasing the distance between the two limit blocks 5. Then, the top of the smoke sensor 1 is engaged with the retaining ring 2. The retaining ring 2 can prevent the smoke sensor 1 from moving horizontally. Finally, the operator releases the swing arm 1201, and the torsion spring 14 can push it to reset. The swing arm 1201 can push the limit block 5 into the limit groove 4 of the smoke sensor 1, which can limit the vertical direction of the smoke sensor 1. This allows for quick assembly and ensures firmness. The smoke sensor 1 is not easy to loosen or fall off. During this process, the support rail 13 and the slider 1203 can support and guide the hanging rod 1202. The hanging rod 1202 can improve the stability of the swing arm 1201.

[0031] After the smoke sensor 1 is installed, the operator connects the protective cover 901 to the threaded ring 7 using the internal thread 902. The protective cover 901 protects the bottom of the smoke sensor 1, preventing dust and foreign objects from entering the smoke sensor 1 through the detection port 8, and ensuring air circulation. There is no need to install a filter on the surface of the detection port 8, which can prevent the detection port 8 from being blocked. The smoke sensor 1 can detect smoke through the detection port 8. The operator can quickly disassemble the protective cover 901 by loosening it with the anti-slip protrusion 903 for easy cleaning.

[0032] When it is necessary to disassemble the smoke sensor 1, the staff pushes one of the swing arms 1201 again to remove the limit block 5 from the inside of the limit groove 4, and then pushes the smoke sensor 1 vertically to remove the smoke sensor 1 from the retaining ring 2.

[0033] 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 smoke detection device that is easy to position and assemble, comprising a smoke sensor (1), characterized in that: The smoke sensor (1) has a detection port (8) at its bottom end. The smoke sensor (1) has a protective component (9) at its bottom. Limiting grooves (4) are opened on the top of both sides of the smoke sensor (1). Limiting blocks (5) are engaged inside the limiting grooves (4). A retaining ring (2) is engaged on the top of the smoke sensor (1). A positioning plate (3) is fixedly provided on the top of the retaining ring (2). Two rotating shafts (10) are rotatably connected to one side of the bottom end of the positioning plate (3). Torsion springs (14) are sleeved on the surface of the rotating shafts (10). A meshing gear (11) is fixedly provided at the bottom of the rotating shafts (10). A support component (12) is provided at the bottom end of the rotating shafts (10).

2. The smoke detector device for easy positioning and assembly according to claim 1, characterized in that: The protective component (9) includes a protective cover (901), the top of which is fixedly provided with an anti-slip protrusion (903), and the surface and bottom of the protective cover (901) are provided with ventilation grooves (904), and the surface of the ventilation grooves (904) is fixedly provided with a dustproof net (905).

3. The smoke detector device for easy positioning and assembly according to claim 2, characterized in that: The inner wall of the top of the protective cover (901) is fixed with an internal thread (902), and the bottom of the smoke sensor (1) is fixed with a threaded ring (7). The protective cover (901) is threadedly connected to the threaded ring (7) through the internal thread (902).

4. The smoke detector device for easy positioning and assembly according to claim 1, characterized in that: The smoke sensor (1) has a wire hole (17) at the top center and the positioning plate (3) has a rubber pad (19) fixed at the top of the positioning plate (3) and positioning holes (18) are provided at the four corners of the positioning plate (3).

5. The smoke detector device for easy positioning and assembly according to claim 1, characterized in that: One end of the torsion spring (14) is engaged with a first card holder (15), the first card holder (15) is fixedly connected to the top of the gear (11), and the other end of the torsion spring (14) is engaged with a second card holder (16), the second card holder (16) is fixedly connected to the bottom of the positioning plate (3).

6. The smoke detector device for easy positioning and assembly according to claim 1, characterized in that: The support assembly (12) includes a swing arm (1201), one side of the top end of the swing arm (1201) is fixedly connected to the bottom end of the rotating shaft (10), the other side of the top end of the swing arm (1201) is fixedly provided with a hanging rod (1202), the top end of the hanging rod (1202) is fixedly provided with a slider (1203), and one side of the swing arm (1201) is fixedly connected to one side of the limiting block (5).

7. The smoke detector device for easy positioning and assembly according to claim 6, characterized in that: The positioning plate (3) has support rails (13) fixed on both sides of its bottom end, and the slider (1203) is slidably connected to the support rails (13).

8. The smoke detector device for easy positioning and assembly according to claim 1, characterized in that: The retaining ring (2) has channels (6) on both sides, and the limiting block (5) is slidably connected to the inside of the channel (6).

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