Smoke alarm
By introducing a buffer structure and reinforcing plate into the smoke detector, the wear problem during installation is solved, achieving better buffering and connection protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-31
AI Technical Summary
During the installation of existing smoke detectors, the mounting plate and the ceiling slab are prone to large hard contact, leading to wear and tear.
The system employs a buffer structure consisting of buffer columns, buffer springs, buffer pads, and buffer cotton, combined with reinforcing plates and flame-retardant particle layers, to enhance the buffering capacity and connection strength between the mounting plate and the ceiling.
It improves the buffering capacity and durability of smoke detectors during installation, while enhancing the protective effect of connections, reducing wear, and improving compressive strength and flame retardant properties.
Smart Images

Figure CN224067264U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smoke alarm technology, specifically a smoke alarm. Background Technology
[0002] A smoke detector is a fire safety device used to monitor smoke generated during a fire and to warn people of a possible fire by emitting audible and visual signals. It achieves the purpose of fire prevention by monitoring the concentration of smoke. It uses electronic components such as sensors to generate alarms and so on. Therefore, smoke detectors are widely used in various fire alarm systems.
[0003] Since smoke detectors are typically installed on the ceiling, they are usually mounted on the top and connected to the ceiling slab using a mounting plate. This installation process can easily lead to significant hard contact between the mounting plate and the ceiling slab, resulting in excessive wear and tear. Utility Model Content
[0004] The purpose of this invention is to provide a smoke detector that solves the problem mentioned in the background art, where the installation process easily leads to a large hard contact between the mounting plate and the ceiling slab, resulting in excessive wear.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a smoke alarm, comprising a smoke alarm body and a top connecting plate. Connecting bolts are installed inside both sides of the top connecting plate. A first movable groove is formed inside the top connecting plate, and a first buffer column is inserted inside the first movable groove. A support plate is fixed to the top of the first buffer column, and a buffer pad is fixed to the top of the support plate. A shaping plate is fixed to the top and bottom of the buffer pad. A first buffer seat is fixed to the bottom of one shaping plate. A reserved cavity is formed inside the first buffer seat, and a second buffer column is installed inside the reserved cavity. A second buffer spring is connected to the outer wall of the second buffer column. A connecting block is installed at the top of the other shaping plate, and a movable column is installed at the top of the connecting block. A reserved groove is formed inside the top of the movable column, and second guide rails are installed on both sides of the inner wall of the reserved groove. Second guide blocks are fixed near the bottom of both sides of the second buffer column. The buffer pad is filled with buffer cotton.
[0006] Preferably, the shaping plates are symmetrically distributed about the central axis of the buffer pad, the first buffer seats are evenly distributed at the bottom of the shaping plates, and the connecting blocks are evenly distributed at the top of the shaping plates.
[0007] Preferably, the second guide rail is symmetrically distributed about the central axis of the reserved groove, the second guide block is symmetrically distributed about the central axis of the second buffer post, and a sliding connection is formed between the second guide rail and the second guide block.
[0008] Preferably, a first buffer spring is connected to the outer wall of the first buffer post, a first guide block is fixed at the bottom position on both sides of the first buffer post, and a first guide rail is installed on both sides of the inner wall of the first movable groove.
[0009] Preferably, the first movable groove is evenly distributed inside the top connecting plate, the first guide rail is symmetrically distributed about the central axis of the first movable groove, and the first guide block is symmetrically distributed about the central axis of the first buffer column.
[0010] Preferably, a sliding connection is formed between the first guide rail and the first guide block, and the connecting bolts are symmetrically distributed about the central axis of the top connecting plate.
[0011] Preferably, a reinforcing plate is fixed inside the main housing of the smoke alarm, the main housing of the smoke alarm is filled with a flame-retardant particle layer, a second reinforcing rod is fixed between the reinforcing plates, and a first reinforcing rod is connected to one side of the second reinforcing rod.
[0012] Preferably, the second reinforcing rods are evenly distributed between the reinforcing plates, and the first reinforcing rods are installed at an angle on one side of the second reinforcing rods.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the smoke alarm not only improves the buffer installation capability, but also improves the usage strength and connection buffer capability of the smoke alarm.
[0014] (1) During installation, the support plate is installed at the top of the first buffer column, and then the buffer pad is installed at the top of the support plate to form top protection. The side fixing between the top connecting plate and the floor is completed by the connecting bolts. The shaping plate is installed and fixed at the top and bottom of the buffer pad to ensure the general shape of the buffer pad. Then the buffer cotton is filled inside the buffer pad to form soft protection. The connecting block is evenly installed at one end of the shaping plate, and then the first buffer seat is evenly installed at the end face of another shaping plate. Therefore, when connecting and installing, the buffer pad will be squeezed. At this time, the second buffer spring contracts and the second buffer column moves inside the reserved groove. Therefore, during the operation, the top contact protection capability is improved by the buffer pad, and the buffer installation capability is improved.
[0015] (2) The reinforcing plate is installed and fixed inside the housing of the smoke alarm body. Then, the second reinforcing rod and the first reinforcing rod are combined to form a whole. The second reinforcing rod and the first reinforcing rod are evenly distributed inside the smoke alarm body. Therefore, the compressive strength is improved during operation. Then, with the addition of flame-retardant particle layer, the overall flame-retardant protection effect is improved.
[0016] (3) By evenly distributing the first movable slot inside the top connecting plate, while using the buffer pad for cushioning protection, the first buffer column is inserted into the first movable slot. At this time, after the first buffer spring is contracted, the first buffer column can move inside the first movable slot. At this time, the first guide rail and the first guide block cooperate to play the purpose of guiding, thereby improving the overall connection buffering capacity in the working process. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 2 This is a partial frontal cross-sectional view of the top connecting plate of this utility model;
[0019] Figure 3 This is a partial frontal cross-sectional view of the buffer pad of this utility model;
[0020] Figure 4 This is a partial cross-sectional view of the main body of the smoke alarm of this utility model.
[0021] In the diagram: 1. Main body of the smoke alarm; 2. Top connecting plate; 3. Connecting bolt; 4. Buffer pad; 5. Support plate; 6. First buffer column; 7. First buffer spring; 8. First movable groove; 9. First guide rail; 10. First guide block; 11. Shaping plate; 12. First buffer seat; 13. Reserved cavity; 14. Second buffer spring; 15. Second buffer column; 16. Connecting block; 17. Movable column; 18. Reserved groove; 19. Buffer cotton; 20. Second guide rail; 21. Second guide block; 22. Reinforcing plate; 23. First reinforcing rod; 24. Second reinforcing rod; 25. Flame-retardant particle layer. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-4 This utility model provides an embodiment of a smoke alarm, including a smoke alarm body 1 and a top connecting plate 2. Connecting bolts 3 are installed inside both sides of the top connecting plate 2. A first movable groove 8 is formed inside the top connecting plate 2. A first buffer column 6 is inserted inside the first movable groove 8. A support plate 5 is fixed to the top of the first buffer column 6. A buffer pad 4 is fixed to the top of the support plate 5. A shaping plate 11 is fixed to the top and bottom of the buffer pad 4. A first buffer seat 12 is fixed to the bottom of one of the shaping plates 11. The seat 12 has a reserved cavity 13 inside, and a second buffer column 15 is installed inside the reserved cavity 13. A second buffer spring 14 is connected to the outer wall of the second buffer column 15. A connecting block 16 is installed at the top of another shaping plate 11. A movable column 17 is installed at the top of the connecting block 16. A reserved groove 18 is opened inside the top of the movable column 17. A second guide rail 20 is installed on both sides of the inner wall of the reserved groove 18. A second guide block 21 is fixed on both sides of the second buffer column 15 near the bottom. The buffer pad 4 is filled with buffer cotton 19.
[0024] The shaping plate 11 is symmetrically distributed about the central axis of the buffer pad 4, the first buffer seat 12 is evenly distributed at the bottom end of the shaping plate 11, and the connecting block 16 is evenly distributed at the top end of the shaping plate 11.
[0025] The second guide rail 20 is symmetrically distributed about the central axis of the reserved groove 18, and the second guide block 21 is symmetrically distributed about the central axis of the second buffer column 15. A sliding connection is formed between the second guide rail 20 and the second guide block 21.
[0026] The outer wall of the first buffer column 6 is connected to the first buffer spring 7. The first guide block 10 is fixed at the bottom position on both sides of the first buffer column 6. The first guide rail 9 is installed on both sides of the inner wall of the first movable groove 8.
[0027] The first movable groove 8 is evenly distributed inside the top connecting plate 2, the first guide rail 9 is symmetrically distributed about the central axis of the first movable groove 8, and the first guide block 10 is symmetrically distributed about the central axis of the first buffer column 6.
[0028] A sliding connection is formed between the first guide rail 9 and the first guide block 10, and the connecting bolts 3 are symmetrically distributed about the central axis of the top connecting plate 2.
[0029] The smoke alarm body 1 has a reinforcing plate 22 fixed inside the housing, and the smoke alarm body 1 is filled with a flame-retardant particle layer 25. A second reinforcing rod 24 is fixed between the reinforcing plates 22, and a first reinforcing rod 23 is connected to one side of the second reinforcing rod 24.
[0030] The second reinforcing rod 24 is evenly distributed between the reinforcing plates 22, and the first reinforcing rod 23 is installed at an angle on one side of the second reinforcing rod 24;
[0031] Furthermore, the cushioning cotton 19 is filled inside the cushioning pad 4, thus providing a soft deformation space during deformation.
[0032] Furthermore, the flame-retardant granular layer 25 can be filled with flame-retardant granules, which are organically combined, modified, and synergistically combined with various flame-retardant components based on the flame retardant agent.
[0033] Working principle: First, during operation, the support plate 5 is installed at the top of the first buffer column 6, and then the buffer pad 4 is installed at the top of the support plate 5. The shaping plate 11 is installed and fixed inside the buffer pad 4 at the top and bottom to ensure the general shape of the buffer pad 4. Then, the buffer cotton 19 is filled inside the buffer pad 4 to form soft protection. The connecting block 16 is evenly installed at one end of the shaping plate 11. During the connection and installation, the buffer pad 4 will be squeezed. At this time, the second buffer spring 14 contracts while the second buffer column 15 moves inside the reserved groove 18. While using the buffer pad 4 for cushion protection, the first buffer column 6 is inserted into the first movable groove 8, allowing the first buffer column 6 to move inside the first movable groove 8 to form secondary protection. Finally, the side fixing between the top connecting plate 2 and the floor slab is completed using the connecting bolt 3.
[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A smoke alarm comprising a smoke alarm body (1), a top connecting plate (2), characterized in that: The inside of both sides of the top connecting plate (2) is internally provided with connecting bolts (3), the inside of the top connecting plate (2) is provided with a first movable slot (8), the inside of the first movable slot (8) is inserted with a first buffer column (6), the top end of the first buffer column (6) is fixedly provided with a supporting plate (5), the top end of the supporting plate (5) is fixedly provided with a buffer pad (4), the inside of the buffer pad (4) is fixedly provided with a shaped plate (11) at the top end and the bottom end, the bottom end of one of the shaped plates (11) is fixedly provided with a first buffer seat (12), the inside of the first buffer seat (12) is provided with a reserved cavity (13), the inside of the reserved cavity (13) is internally provided with a second buffer column (15), the outer side wall of the second buffer column (15) is connected with a second buffer spring (14), the top end of the other shaped plate (11) is internally provided with a connecting block (16), the top end of the connecting block (16) is internally provided with a movable column (17), the inside of the top end of the movable column (17) is provided with a reserved slot (18), the inside of the reserved slot (18) is internally provided with a second guide rail (20), the second buffer column (15) is fixedly provided with a second guide block (21) at the position close to the bottom end, the inside of the buffer pad (4) is filled with buffer cotton (19).
2. The smoke alarm of claim 1, wherein: The shaped plates (11) are symmetrically distributed about the central axis of the buffer pad (4), the first buffer seats (12) are uniformly distributed at the bottom end of the shaped plates (11), and the connecting blocks (16) are uniformly distributed at the top end of the shaped plates (11).
3. The smoke alarm of claim 1, wherein: The second guide rails (20) are symmetrically distributed about the central axis of the reserved slot (18), the second guide blocks (21) are symmetrically distributed about the central axis of the second buffer column (15), and the second guide rails (20) and the second guide blocks (21) are in sliding connection.
4. The smoke alarm of claim 1, wherein: The outer side wall of the first buffer column (6) is connected with a first buffer spring (7), the first buffer column (6) is fixedly provided with a first guide block (10) at the position close to the bottom end, and the inside of the first movable slot (8) is internally provided with a first guide rail (9).
5. The smoke alarm of claim 4, wherein: The first movable slots (8) are uniformly distributed in the inside of the top connecting plate (2), the first guide rails (9) are symmetrically distributed about the central axis of the first movable slots (8), and the first guide blocks (10) are symmetrically distributed about the central axis of the first buffer column (6).
6. The smoke alarm of claim 4, wherein: The first guide rails (9) and the first guide blocks (10) are in sliding connection, and the connecting bolts (3) are symmetrically distributed about the central axis of the top connecting plate (2).
7. The smoke alarm of claim 1, wherein: The inside of the shell of the smoke alarm body (1) is fixedly provided with a reinforcing plate (22), the inside of the shell of the smoke alarm body (1) is filled with a fire-retardant particle layer (25), the reinforcing plates (22) are fixedly provided with a second reinforcing rod (24), and one side of the second reinforcing rod (24) is connected with a first reinforcing rod (23).
8. The smoke alarm of claim 7, wherein: The second reinforcing rods (24) are uniformly distributed between the reinforcing plates (22), and the first reinforcing rod (23) is obliquely arranged on one side of the second reinforcing rod (24).