Fire alarm device

Abstract

This utility model discloses a fire alarm device, relating to the field of fire alarm devices. It includes a base and a housing. A damping rod is fixedly connected inside the base, and a wedge block is fixedly connected to the end of the damping rod away from the base. A switch button is slidably connected to the housing. A limit post is fixedly connected to the side of the switch button, and a moving post is fixedly connected to the end of the limit post away from the switch button. A sliding plate is slidably connected to the moving post, and a fixed plate is fixedly connected to the end of the moving post. The wedge block is positioned between the sliding plate and the fixed plate via the fixed plate. Through the cooperation of the switch button, the moving post, the sliding plate, the fixed plate, the groove, and the wedge block, the housing and the base can be clamped together for installation without needing to check for alignment. Installation of the housing and the mounting groove can be achieved simply by adjusting the direction of the housing according to the position of the mounting groove, thereby improving the quick installation and disassembly of the fire alarm.

Description

Technical Field

[0001] This utility model relates to the technical field of fire alarm devices, and more specifically, to fire alarm devices. Background Technology

[0002] Fire alarm devices are designed to issue timely warnings in the event of a fire or other emergency, so as to remind people to take appropriate measures and evacuate quickly. These devices are usually installed in key locations inside buildings, such as corridors, stairwells or other important areas, to ensure that people can notice and take appropriate action as soon as possible in the event of a fire or other emergency.

[0003] Chinese Patent Publication No. CN219228133U discloses a fire alarm installation structure. Its key technical features include: an upper housing with connecting posts fixedly connected to the four corners of its bottom; mounting grooves inside the connecting posts; springs fixedly connected inside the mounting grooves; a movable plate slidably connected inside the mounting grooves; and a locking element fixedly connected to the end of the movable plate away from the spring. A lower housing is located below the upper housing, with connecting posts fixedly connected to the four corners of its inner bottom wall. The mounting posts have locking slots inside, and the other end of the mounting groove is fixedly connected to the outside of the movable plate. The locking element is hemispherical. Through the interplay of connecting posts, locking elements, movable plates, mounting grooves, and locking slots, the fire alarm can be quickly installed by personnel. The structure is also rationally designed and easy to disassemble, making it more user-friendly than existing screw-based connections.

[0004] The above solution addresses the quick installation and disassembly of fire alarm devices. However, in the interaction between the clips and slots in this utility model, since the lower housing is usually fixed to the wall first, and then the upper housing is installed with the lower housing, the above case requires the staff to constantly observe whether the clips and slots are aligned during the installation process, thus reducing the problem of quick installation of fire alarm devices. Therefore, a new solution is needed to solve this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fire alarm device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a fire alarm device, including a base and a housing, wherein a damping rod is fixedly connected inside the base, and a wedge block is fixedly connected to the end of the damping rod away from the base; a switch button is slidably connected to the housing; a limit post is fixedly connected to the side of the switch button; a moving post is fixedly connected to the end of the limit post away from the switch button; a sliding plate is slidably connected to the moving post; a fixed plate is fixedly connected to the end of the moving post; and the wedge block is disposed between the sliding plate and the fixed plate through the fixed plate.

[0007] By adopting the above technical solution, the wedge block contacts the fixed plate and is squeezed, causing the wedge block to rise and fall between the fixed plate and the sliding plate, thereby achieving a stable installation of the base and the housing.

[0008] The present invention is further configured such that: the damping rod is telescopic, a spring is provided on the damping rod, and the spring is fixedly connected to the wedge block.

[0009] By adopting the above technical solution, the spring facilitates the reset of the wedge block after lifting, and the damping rod can improve the stability of the spring during compression and prevent the spring from shifting during compression.

[0010] The present invention is further configured such that: two switch slots are provided on both sides of the housing, and a limit plate is fixedly connected inside each switch slot; a limit groove is provided on the limit plate; and the limit groove and the limit post are slidably connected.

[0011] By adopting the above technical solution, and by setting the limiting groove on the limiting plate, the limiting post can limit the movement direction of the switch button during the sliding process, and also block the sliding range of the sliding plate.

[0012] The present invention is further configured such that: a fixed column is fixedly connected inside the housing, and the fixed column and the movable column are slidably connected.

[0013] By adopting the above technical solution, the setting of fixed column and moving column can prevent the moving column from shifting during the movement process, and can drive the sliding plate and fixed plate to move as a whole.

[0014] The present invention is further configured such that: mounting grooves are provided on both sides of the base, and the mounting grooves are slidably connected to the limiting post.

[0015] By adopting the above technical solution, the installation groove is opened in the base to prevent the movement of the limiting column from being affected when the base and the shell are combined, and to make the installation direction of the positive and negative direction distinguishable through the installation groove.

[0016] The present invention is further configured such that: the switch button is provided with raised texture, and the switch button and the limiting plate are slidably connected.

[0017] By adopting the above technical solution, the raised texture on the switch button makes it easier for staff to slide the switch button with their fingers.

[0018] The present invention is further configured such that: both sides of the sliding disk on the moving column are inclined, one side of the sliding disk abuts against the limiting column, the fixing disk at the end of the moving column is inclined, and a groove is formed inside the fixing disk, the groove being adapted to the inclined surface of the sliding disk. The base is provided with a groove and a wire hole, and the housing is provided with a button.

[0019] By adopting the above technical solution, the inclined surfaces of the fixed plate and the sliding plate facilitate contact with the inclined surfaces of the wedge block, and the groove and wire hole of the base facilitate the installation of the base.

[0020] In summary, this utility model has the following beneficial effects: through the cooperation of the switch button, moving column, sliding plate, fixed plate, groove and wedge block, the housing and base can be clamped together and installed without observing whether they are aligned. The housing can be installed by simply adjusting the direction of the housing according to the position of the mounting groove, thereby improving the quick installation and disassembly of the fire alarm. Attached Figure Description

[0021] Figure 1 This is a schematic diagram showing the overall structure of this utility model broken down.

[0022] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the shell structure of this utility model;

[0024] Figure 4 This is a schematic diagram showing the disassembled structure of the base and wedge block of this utility model;

[0025] Figure 5 This is a schematic diagram of the sliding disk and fixed disk structure of this utility model;

[0026] Figure 6 This is a structural breakdown diagram of the limiting column and the moving column of this utility model.

[0027] In the diagram: 1. Base; 2. Housing; 3. Mounting groove; 4. Damping rod; 5. Spring; 6. Wedge block; 7. Switch groove; 8. Limiting plate; 9. Switch button; 10. Limiting groove; 11. Limiting post; 12. Moving post; 13. Fixed post; 14. Sliding plate; 15. Fixed plate; 16. Groove. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Please refer to the embodiments of this utility model. Figures 1 to 6 The fire alarm device includes a base 1 and a housing 2. A damping rod 4 is fixedly connected inside the base 1. A wedge block 6 is fixedly connected to the end of the damping rod 4 away from the base 1. A switch button 9 is slidably connected to the housing 2. A limit post 11 is fixedly connected to the side of the switch button 9. A moving post 12 is fixedly connected to the end of the limit post 11 away from the switch button 9. A sliding plate 14 is slidably connected to the moving post 12. A fixed plate 15 is fixedly connected to the end of the moving post 12. The wedge block 6 is disposed between the sliding plate 14 and the fixed plate 15 through the fixed plate 15.

[0030] The specific structural composition of wedge block 6 is disclosed below. Please refer to it. Figures 1 to 4 The damping rod 4 is telescopic, and a spring 5 is installed on the damping rod 4. The spring 5 is fixedly connected to the wedge block 6.

[0031] The specific structure of shell 2 is disclosed below; please refer to it. Figure 1 and Figure 5 and Figure 6 Two switch slots 7 are provided on both sides of the housing 2. Each switch slot 7 is fixedly connected to a limit plate 8. A limit groove 10 is provided on the limit plate 8. The limit groove 10 and the limit post 11 are slidably connected.

[0032] The following details the specific structure of the movable column 12. Please refer to it. Figure 5 and Figure 6 Inside the housing 2, there is a fixed column 13, which is slidably connected to the movable column 12. The movable column 12 is fixedly connected to the end of the limiting column 11 away from the switch button 9.

[0033] The positional relationship between base 1 and limit post 11 is disclosed below. Please refer to it. Figures 4 to 6 The base 1 has mounting grooves 3 on both sides, and the mounting grooves 3 are slidably connected to the limiting post 11.

[0034] The following describes the settings for switch 9. Please refer to the instructions. Figure 1 and Figure 5 and Figure 6 The switch button 9 has raised textures, and the switch button 9 is slidably connected to the limit plate 8.

[0035] The following describes the settings for the sliding disk 14 and the fixed disk 15. Please refer to them. Figure 5 and Figure 6Both sides of the sliding disk 14 on the moving column 12 are inclined. One side of the sliding disk 14 is abutted against the limiting column 11. The fixed disk 15 at the end of the moving column 12 is inclined. The fixed disk 15 has a groove 16 inside, which is adapted to the inclined surface of the sliding disk 14.

[0036] The following describes the setup of base 1 to facilitate its installation. Please refer to the instructions. Figure 1 and Figure 2 The base 1 has a groove and a wire hole, and the housing 2 has a button.

[0037] Working principle: First, the worker installs the base 1 to the wall using bolts. Then, the worker holds the housing 2 and moves it towards the base 1, wrapping the housing 2 around the base 1. Next, the worker pushes the switch button 9 to slide inside the switch slot 7, causing the limiting post 11 to slide within the limiting slot 10 of the limiting plate 8. Since the moving post 12 and the fixed post 13 are slidably connected, the movement of the limiting post 11 will cause the sliding plate 14 and the fixed plate 15 on the moving post 12 to move under the limitation of the fixed post 13. At this time, because the housing 2 and the base 1 are wrapped, even if the limiting post 11 moves, it will move within the mounting slot 3 of the base 1. This ensures that the movement of the limiting post 11 is not affected when the housing 2 and the base 1 are wrapped, and that the movement of the sliding plate 14 and the fixed plate 15 is not affected during their movement. The surface will first contact the inclined surface of the wedge block 6. At this time, the fixed plate 15 is fixed to the end of the moving column 12. The damping rod 4 on the wedge block 6 is telescopic, and a spring 5 is provided on the surface of the damping rod 4. Therefore, when the fixed plate 15 contacts and squeezes the inclined surface of the wedge block 6, it will lift the wedge block 6 and cause the damping rod 4 on the wedge block 6 to contract and the spring 5 to compress. When the wedge block 6 passes the fixed plate 15, the spring 5 will lose the squeezing force of the wedge block 6 and release the compressed spring 5, so that the wedge block 6 is between the sliding plate 14 and the fixed plate 15, realizing the installation of the housing 2 and the base 1. Because the side of the fixed plate 15 close to the sliding plate 14 is set as a plane, even if the housing 2 is accidentally pulled by external personnel, the contact between the wedge block 6 and the plane of the fixed plate 15 will not lift the wedge block 6, realizing the locking state of the base 1 and the housing 2.

[0038] When it is necessary to remove the housing 2 and the base 1, the operator must push the switch button 9 again to move the limiting post 11, which in turn moves the moving post 12 and the sliding plate 14. Since the sliding plate 14 and the limiting post 11 are set to abut against each other, when the sliding plate 14 moves, its inclined surface contacts the inclined surface of the wedge block 6, squeezing the wedge block 6 and lifting it so that the wedge block 6 is between the moving post 12 and the fixed post 13. Then, the operator needs to pull the housing 2 so that the plane of the wedge block 6 contacts the sliding plate 14, causing the sliding plate 14 to slide on the moving post 12 and lock the sliding plate 14 into place. The groove 16 on the fixed plate 15 allows the sliding plate 14 and the fixed plate 15 to be combined, making both sides inclined (similar to a complete sliding plate 14). Since the fixed plate 15 is fixedly connected to the end of the moving column 12, when the housing 2 is pulled out, it will drive the sliding plate 14 and the fixed plate 15 to be pulled out as a whole, so that the wedge block 6 contacts the inclined surface of the sliding plate 14, causing the wedge block 6 to rise and pass over to the side of the fixed plate 15, that is, the side of the fixed plate 15 away from the sliding plate 14, thereby separating the housing 2 and the base 1, which makes it easier for the staff to perform internal maintenance on the base 1.

[0039] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A fire alarm device, comprising a base (1) and a housing (2), characterized in that: A damping rod (4) is fixedly connected inside the base (1). A wedge block (6) is fixedly connected to one end of the damping rod (4) away from the base (1). A switch button (9) is slidably connected to the housing (2). A limit post (11) is fixedly connected to the side of the switch button (9). A moving post (12) is fixedly connected to one end of the limit post (11) away from the switch button (9). A sliding disk (14) is slidably connected to the moving post (12). A fixed disk (15) is fixedly connected to the end of the moving post (12). The wedge block (6) is set between the sliding disk (14) and the fixed disk (15) through the fixed disk (15).

2. The fire alarm device according to claim 1, characterized in that: The damping rod (4) is telescopic, and a spring (5) is provided on the damping rod (4). The spring (5) and the wedge block (6) are fixedly connected.

3. The fire alarm device according to claim 1, characterized in that: Two switch slots (7) are provided on both sides of the housing (2). A limiting plate (8) is fixedly connected inside each switch slot (7). A limiting groove (10) is provided on the limiting plate (8). The limiting groove (10) and the limiting post (11) are slidably connected.

4. The fire alarm device according to claim 1, characterized in that: The housing (2) is fixedly connected to a fixed column (13), and the fixed column (13) and the movable column (12) are slidably connected.

5. The fire alarm device according to claim 1, characterized in that: The base (1) has mounting grooves (3) on both sides, and the mounting grooves (3) are slidably connected to the limiting post (11).

6. The fire alarm device according to claim 3, characterized in that: The switch button (9) is provided with raised texture, and the switch button (9) and the limiting plate (8) are slidably connected.

7. The fire alarm device according to claim 1, characterized in that: The sliding disk (14) on the moving column (12) has inclined surfaces on both sides. One side of the sliding disk (14) is abutted against the limiting column (11). The fixed disk (15) at the end of the moving column (12) is inclined. The fixed disk (15) has a groove (16) inside. The groove (16) is adapted to the inclined surface of the sliding disk (14).

8. The fire alarm device according to claim 1, characterized in that: The base (1) is provided with a groove and a wire hole, and the housing (2) is provided with a button.

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