Alarm device for fire safety

Abstract

The utility model relates to the technical field of fire safety, and discloses a fire safety alarm device which comprises a mounting seat and a connecting column, a limiting block is arranged in the mounting seat, a positioning plate is fixedly mounted on the outer side of the limiting block, a first spring is fixedly mounted in the mounting seat, and a second spring is fixedly mounted in the mounting seat. And an arc-shaped groove and a positioning groove are formed in the positioning plate. The alarm device for fire safety is provided with the three connecting columns, the three connecting columns are pre-installed on a ceiling or a support through the fixing screws, and the installation base and the connecting columns can be connected together only by pressing and rotating the positioning plate through mutual cooperation of the first spring, the arc-shaped groove and the positioning groove in the installation process; through mutual cooperation of the outer sleeve, the inner sleeve, the guide groove and the guide block, the alarm main body and the mounting seat can be quickly butted together, and are fixed through the connecting sleeve without using components such as bolts, so that quick disassembly and assembly of the alarm main body are realized, and the maintenance convenience of the alarm device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire safety, in particular to an alarm device for fire safety. Background Technique

[0002] A fire safety alarm device refers to a device used in a fire automatic alarm system to emit a fire alarm signal that is different from the ambient sound and light. A fire alarm is one of the most basic fire safety alarm devices, usually combined with a fire alarm controller. It emits a fire alarm signal to the alarm area in the form of sound and light to warn people to take safety evacuation and fire fighting and disaster relief measures.

[0003] According to the search, the Chinese patent document, publication number: CN216697462U, discloses an alarm device for fire safety. By designing a sliding head on the outer surface of the clamping rod and a sliding plate and a clamping block at the bottom of the sliding head, when the main body of the fire alarm device is damaged during use, the pull rod can be directly pressed inside the first chute, and the slider can be driven by the pull rod to slide inside the second chute. The sliding of the slider slides the sliding head on the outer surface of the clamping rod, and the sliding of the sliding head drives the sliding plate and the clamping block to move, so that the clamping block disengages from the inside of the first clamping groove. At this time, the mounting seat and the fixing seat can be disassembled, which is convenient for disassembly and maintenance when damaged, and vice versa for installation. However, the device is installed by sucking with a suction cup between the bracket or the ceiling, and the stability is poor and it is easy to fall off. If bolts are used to pass through the fixing seat for installation, the rapid disassembly and assembly between the device and the bracket or the ceiling cannot be achieved. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] The purpose of the utility model is to provide an alarm device for fire safety to solve the problems put forward in the above background technique.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present utility model provides the following technical solution: An alarm device for fire safety, comprising a mounting base and a connecting column. A limiting block is arranged inside the mounting base. A positioning plate is fixedly installed on the outer side of the limiting block. A first spring is fixedly installed inside the mounting base. An arc-shaped groove and a positioning groove are formed inside the positioning plate. A first limiting ring is fixedly installed at one end of the connecting column. A second limiting ring is fixedly installed at the other end of the connecting column. A fixing screw is fixedly installed at the end of the first limiting ring away from the connecting column. A guide rod is sleeved and installed on the outer side of the mounting base. A pressing plate is fixedly installed on the outer side of the guide rod. A second spring is fixedly installed on the outer side of the mounting base. An outer sleeve is fixedly installed at the end of the mounting base away from the second spring. An inner sleeve is sleeved and installed inside the outer sleeve. A guide groove is formed inside the outer sleeve. A guide block is fixedly installed on the outer side of the inner sleeve. A third limiting ring is fixedly installed on the outer side of the inner sleeve. A connecting sleeve is sleeved and installed on the outer side of the inner sleeve. An alarm main body is fixedly installed at the end of the inner sleeve away from the mounting base.

[0008] Preferably, three limiting blocks are arranged in a ring shape. The limiting blocks are in contact with the inner side of the mounting base. The positioning plate extends to the outside of the mounting base.

[0009] Through the above technical solution, when pressing the positioning plate into the mounting base, the positioning plate moves horizontally inside the mounting base, and the limiting block prevents the positioning plate from falling off.

[0010] Preferably, three first springs are arranged in a ring shape. The first springs are fixedly connected to the limiting blocks.

[0011] Through the above technical solution, when the limiting block moves into the mounting base, the first spring is compressed. After releasing the positioning plate, the first spring resumes, and an outward elastic force is applied to the positioning plate through the limiting block.

[0012] Preferably, one end of the arc-shaped groove extends to the outside of the positioning plate. The other end of the arc-shaped groove is connected to the positioning groove. The positioning groove is parallel to the positioning plate. The connecting column is in contact with the inner side of the positioning groove.

[0013] Through the above technical solution, three fixing screws are installed on the ceiling or the bracket through a threaded structure. The first limiting ring is in contact with the ceiling or the bracket. When the positioning plate moves to the limit inside the mounting base, align the arc-shaped groove with the connecting column, rotate the mounting base, so that the connecting column moves to one end of the positioning groove. The second limiting ring plays a supporting role for the mounting base. After releasing the positioning plate, the connecting column moves to the other end of the positioning groove, playing a positioning role for the mounting base.

[0014] Preferably, three guide rods are arranged in a ring shape. The second spring is fixedly connected to the pressing plate.

[0015] Through the above technical solution, the guide rod guides the pressure plate. The pressure plate contacts the ceiling or the bracket. The second spring applies an elastic force to the mounting seat, so that the positioning plate is in close contact with the second limiting ring, preventing the mounting seat from loosening.

[0016] Preferably, the guide block fits against the inner side of the guide groove, and three guide grooves and guide blocks are respectively arranged in a ring shape.

[0017] Through the above technical solution, the inner sleeve is sleeved inside the outer sleeve, and the guide block is aligned with the guide groove to prevent the inner sleeve from rotating.

[0018] Preferably, the third limiting ring fits against the outer sleeve, and the connecting sleeve is threadedly connected to the outer side of the outer sleeve.

[0019] Through the above technical solution, the third limiting ring prevents the connecting sleeve from moving out of the outer side of the inner sleeve. The connecting sleeve is moved and rotated towards the outer sleeve. The connecting sleeve is installed on the outer side of the outer sleeve through a threaded structure, connecting the alarm device main body to the mounting seat.

[0020] Compared with the prior art, the present utility model provides an alarm device for fire safety, having the following beneficial effects:

[0021] 1. The present utility model is provided with three connecting columns, pre-installed on the ceiling or the bracket through fixing screws. Through the mutual cooperation of the first spring, the arc-shaped groove and the positioning groove, during installation, only by pressing the positioning plate and rotating can the mounting seat be connected to the connecting column.

[0022] 2. Through the mutual cooperation of the outer sleeve, the inner sleeve, the guide groove and the guide block provided by the present utility model, the alarm device main body can be quickly docked with the mounting seat and fixed through the connecting sleeve, without the need to use components such as bolts, realizing the quick disassembly and assembly of the alarm device main body and improving the convenience of maintaining the alarm device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic three-dimensional structure of the present utility model Figure 1 ;

[0024] Figure 2 is a schematic three-dimensional structure of the present utility model Figure 2 ;

[0025] Figure 3 is an exploded structure schematic diagram of the present utility model;

[0026] Figure 4 is a schematic three-dimensional structure diagram of the mounting seat and the outer sleeve of the present utility model;

[0027] Figure 5 is a schematic cross-sectional structure diagram of the mounting seat of the present utility model.

[0028] Wherein: 1. mounting base; 2. connecting column; 3. limiting block; 4. positioning plate; 5. first spring; 6. arc-shaped groove; 7. positioning groove; 8. first limiting ring; 9. second limiting ring; 10. fixing screw; 11. guiding rod; 12. pressing plate; 13. second spring; 14. outer sleeve; 15. inner sleeve; 16. guiding groove; 17. guiding block; 18. third limiting ring; 19. connecting sleeve; 20. alarm main body. Specific implementation manner

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1:

[0031] As Figures 1-5 shown, an alarm device for fire safety provided by the present invention includes a mounting base 1 and a connecting column 2. A limiting block 3 is arranged inside the mounting base 1. A positioning plate 4 is fixedly installed on the outer side of the limiting block 3. A first spring 5 is fixedly installed inside the mounting base 1. An arc-shaped groove 6 and a positioning groove 7 are opened inside the positioning plate 4. A first limiting ring 8 is fixedly installed at one end of the connecting column 2. A second limiting ring 9 is fixedly installed at the other end of the connecting column 2. A fixing screw 10 is fixedly installed at one end of the first limiting ring 8 away from the connecting column 2. A guiding rod 11 is sleeved and installed on the outer side of the mounting base 1. A pressing plate 12 is fixedly installed on the outer side of the guiding rod 11. A second spring 13 is fixedly installed on the outer side of the mounting base 1. An outer sleeve 14 is fixedly installed at one end of the mounting base 1 away from the second spring 13. An inner sleeve 15 is sleeved and installed inside the outer sleeve 14. A guiding groove 16 is opened inside the outer sleeve 14. A guiding block 17 is fixedly installed on the outer side of the inner sleeve 15. A third limiting ring 18 is fixedly installed on the outer side of the inner sleeve 15. A connecting sleeve 19 is sleeved and installed on the outer side of the inner sleeve 15. An alarm main body 20 is fixedly installed at one end of the inner sleeve 15 away from the mounting base 1.

[0032] Specifically, three limiting blocks 3 are arranged in a ring shape. The limiting blocks 3 are in contact with the inner side of the mounting base 1, and the positioning plate 4 extends to the outside of the mounting base 1. The advantage is that when the positioning plate 4 is pressed into the mounting base 1, the positioning plate 4 moves horizontally along the inside of the mounting base 1, and the limiting blocks 3 prevent the positioning plate 4 from falling off.

[0033] Specifically, there are three springs 5 arranged in a ring shape, and the springs 5 are fixedly connected to the limit blocks 3. The advantage is that when the limit blocks 3 move towards the inside of the mounting base 1, the springs 5 are compressed. After releasing the positioning plate 4, the springs 5 recover, and an outward elastic force is applied to the positioning plate 4 through the limit blocks 3.

[0034] Specifically, one end of the arc-shaped groove 6 extends to the outside of the positioning plate 4, and the other end of the arc-shaped groove 6 communicates with the positioning groove 7. The positioning groove 7 is parallel to the positioning plate 4, and the connecting column 2 fits against the inner side of the positioning groove 7. The advantage is that the three fixing screws 10 are installed on the ceiling or the bracket through a threaded structure, and the first limit ring 8 contacts the ceiling or the bracket. When the positioning plate 4 moves towards the inside of the mounting base 1 to the limit, align the arc-shaped groove 6 with the connecting column 2, rotate the mounting base 1, so that the connecting column 2 moves to one end of the positioning groove 7, and the second limit ring 9 supports the mounting base 1. After releasing the positioning plate 4, the connecting column 2 moves to the other end of the positioning groove 7, playing a positioning role for the mounting base 1.

[0035] Specifically, there are three guide rods 11 arranged in a ring shape, and the springs 13 are fixedly connected to the pressure plates 12. The advantage is that the guide rods 11 play a guiding role for the pressure plates 12. The pressure plates 12 contact the ceiling or the bracket, and the springs 13 apply an elastic force to the mounting base 1, making the positioning plate 4 closely contact the second limit ring 9 to prevent the mounting base 1 from loosening.

[0036] Embodiment 2:

[0037] As Figures 1-5 shown, as an improvement over the previous embodiment. Specifically, the guide blocks 17 fit against the inner sides of the guide grooves 16, and there are three guide grooves 16 and guide blocks 17 arranged in a ring shape respectively. The advantage is that the inner sleeve 15 is sleeved inside the outer sleeve 14, and the guide blocks 17 are aligned with the guide grooves 16 to prevent the inner sleeve 15 from rotating.

[0038] Specifically, the third limit ring 18 fits against the outer sleeve 14, and the connecting sleeve 19 is threadedly connected to the outside of the outer sleeve 14. The advantage is that the third limit ring 18 prevents the connecting sleeve 19 from moving out of the outside of the inner sleeve 15. Move the connecting sleeve 19 towards the outer sleeve 14 and rotate it. The connecting sleeve 19 is installed on the outside of the outer sleeve 14 through a threaded structure, connecting the alarm main body 20 to the mounting base 1.

[0039] In use, the three fixing screws 10 are installed on the ceiling or the bracket through a threaded structure. The first limiting ring 8 contacts the ceiling or the bracket. Press the positioning plate 4 into the interior of the mounting seat 1. The positioning plate 4 moves horizontally along the interior of the mounting seat 1. The limiting block 3 prevents the positioning plate 4 from falling. At this time, the first spring 5 is compressed. After the positioning plate 4 moves to the limit inside the mounting seat 1, place the mounting seat 1 between the three fixing screws 10. Align the arc-shaped groove 6 with the connecting column 2. Rotate the mounting seat 1 to move the connecting column 2 to one end of the positioning groove 7. The second limiting ring 9 supports the mounting seat 1. After releasing the positioning plate 4, the connecting column 2 moves to the other end of the positioning groove 7 to position the mounting seat 1. The pressing plate 12 contacts the ceiling or the bracket. The guide rod 11 guides the pressing plate 12. The second spring 13 applies an elastic force to the mounting seat 1 to make the positioning plate 4 closely contact the second limiting ring 9 and prevent the mounting seat 1 from loosening. Sleeve the inner sleeve 15 inside the outer sleeve 14 and align the guide block 17 with the guide groove 16 to prevent the inner sleeve 15 from rotating. Move the connecting sleeve 19 towards the outer sleeve 14 and rotate it. The connecting sleeve 19 is installed on the outside of the outer sleeve 14 through a threaded structure to connect the alarm main body 20 with the mounting seat 1 and complete the assembly. When maintenance is required, press the positioning plate 4 inward to move the connecting column 2 to the arc-shaped groove 6, and then rotate the mounting seat 1 to remove the mounting seat 1. Rotate the connecting sleeve 19 to move it out from the outside of the outer sleeve 14, and then the alarm main body 20 can be separated from the mounting seat 1. There is no need to use components such as bolts, realizing the quick disassembly and assembly of the alarm main body 20 and improving the convenience of maintaining the alarm device.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire safety alarm device, comprising a mounting base (1) and a connecting column (2), characterized in that: A limit block (3) is arranged inside the mounting seat (1), a positioning plate (4) is fixedly installed on the outer side of the limit block (3), a spring (5) is fixedly installed inside the mounting seat (1), an arc groove (6) and a positioning groove (7) are provided inside the positioning plate (4), a limit ring (8) is fixedly installed on one end of the connecting column (2), a limit ring (9) is fixedly installed on the other end of the connecting column (2), a fixing screw (10) is fixedly installed on the end of the limit ring (8) away from the connecting column (2), a guide rod (11) is sleeved on the outer side of the mounting seat (1), and a pressure plate is fixedly installed on the outer side of the guide rod (11) (12), a spring 2 (13) is fixedly mounted on the outer side of the mounting seat (1), an outer sleeve (14) is fixedly mounted on the end of the mounting seat (1) away from the spring 2 (13), an inner sleeve (15) is sleeved and mounted on the inner side of the outer sleeve (14), a guide groove (16) is provided on the inner side of the outer sleeve (14), a guide block (17) is fixedly mounted on the outer side of the inner sleeve (15), a limiting ring 3 (18) is fixedly mounted on the outer side of the inner sleeve (15), a connecting sleeve (19) is sleeved and mounted on the outer side of the inner sleeve (15), and an alarm body (20) is fixedly mounted on the end of the inner sleeve (15) away from the mounting seat (1).

2. A fire safety alarm device according to claim 1, characterized in that: The limit blocks (3) are arranged in three ring shapes, the limit blocks (3) are fitted with the inner side of the mounting seat (1), and the positioning plate (4) extends to the outer side of the mounting seat (1).

3. A fire safety alarm device according to claim 1, characterized in that: The spring one (5) is provided in three ring shapes, and the spring one (5) is fixedly connected to the limit block (3).

4. A fire safety alarm device according to claim 1, characterized in that: One end of the arc-shaped groove (6) extends to the outside of the positioning plate (4), and the other end of the arc-shaped groove (6) is connected to the positioning groove (7). The positioning groove (7) is parallel to the positioning plate (4). Three connecting columns (2) are arranged in an annular shape, and the connecting columns (2) are in contact with the inner side of the positioning groove (7).

5. A fire safety alarm device according to claim 1, characterized in that: The guide rods (11) are arranged in three ring shapes, and the second spring (13) is fixedly connected to the pressure plate (12).

6. A fire safety alarm device according to claim 1, characterized in that: The guide block (17) is fitted with the inner side of the guide groove (16), and three guide grooves (16) and three guide blocks (17) are respectively arranged in a ring shape.

7. A fire safety alarm device according to claim 1, characterized in that: The limiting ring (18) is fitted with the outer sleeve (14), and the connecting sleeve (19) is threadedly connected to the outer side of the outer sleeve (14).

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