Fire-fighting fire alarm device

Abstract

The utility model discloses a fire-fighting fire alarm device which comprises an installation frame, a shell fixedly penetrates through one side of the outer surface of the installation frame, a manual driving assembly is jointly installed between the shell and the installation frame, the inner wall of one side of the shell is rotationally connected with a main bevel gear, and the main bevel gear is connected with the manual driving assembly; four driven bevel gears are evenly connected to the outer surface of the main bevel gear in a meshed mode, and telescopic rods are jointly installed between the four driven bevel gears and the installation frame. According to the utility model, through the arrangement of the shell, the manual driving assembly, the main bevel gear, the driven bevel gear, the telescopic rod and the arc-shaped clamping block, fire alarm main bodies with different specifications and the appearance approaching to a cylinder can be clamped and fixed, so that when replacement operation is carried out, the mounting rack can be prevented from being disassembled and assembled, time and labor are saved, and the replacement efficiency is improved. And the fire alarm main body can be quickly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire alarm devices, in particular to a fire alarm device. Background Art

[0002] Fire alarm device is a kind of equipment in the automatic fire alarm system. Its main function is to receive, display and transmit fire alarm signals. This device can detect the occurrence of fire by sensing indicators such as smoke, temperature, flame, etc., and emit sound or light signals after detecting the fire, so as to remind people to take emergency measures in time. Fire alarm devices are usually composed of detectors, controllers, alarms and other parts, and can be used in a variety of places, such as residences, commercial buildings, factories, etc. They are one of the important equipment for preventing and reducing fire hazards.

[0003] At present, the fire alarm device includes a mounting bracket and a fire alarm body. The appearance of the fire alarm body is close to a cylinder (such as Gulf JTY-GD-G3X, Gulf JTY-GD-G5T, Nomi FSK01ZZ-S, HUIYAN Huiyan HY-0207, etc.). During installation, the mounting bracket needs to be fixed on the top of the building, and then the fire alarm body is fixedly assembled to the mounting bracket.

[0004] Although the existing fire alarm body and the mounting bracket can be quickly disassembled and assembled, the specifications of fire alarm devices on the market are not uniform. Therefore, the model specifications of the fire alarm body and the mounting bracket must be consistent when they are assembled. As a result, when replacing the fire alarm device, if the purchased model is the same as the previous one, it can be quickly replaced. If the purchased model is inconsistent with the previous one, it is necessary to remove the previous mounting bracket and install a new mounting bracket, which is time-consuming and laborious. Therefore, improvements are proposed. Utility Model Content

[0005] The utility model is a fire alarm device proposed to solve the shortcomings in the prior art.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical scheme: a fire alarm device, comprising a mounting frame, a shell is fixedly passed through one side of the outer surface of the mounting frame, a manual drive assembly is installed between the shell and the mounting frame, a main bevel gear is rotatably connected to the inner wall of one side of the shell, and the main bevel gear is connected to the manual drive assembly;

[0007] The outer surface of the main bevel gear is evenly meshed and connected with four driven bevel gears, and a telescopic rod is installed between the four driven bevel gears and the mounting frame;

[0008] The ends of the four telescopic rods are all fixedly connected with arc-shaped clamping blocks, and the fire alarm body is arranged between the four arc-shaped clamping blocks.

[0009] Furthermore, the manual drive assembly includes two synchronous pulleys, and the two synchronous pulleys are rotationally connected to adjacent shells and mounting frames respectively, and the main bevel gear is fixedly connected to the adjacent synchronous pulleys. A synchronous belt is meshed and sleeved between the two synchronous pulleys. The use of synchronous pulleys and synchronous belts for transmission can ensure the advantages of accurate transmission, no slippage during operation, and constant transmission ratio.

[0010] Furthermore, the manual drive assembly also includes a knob, and the knob is rotatably connected to the shell. The mounting axis of the knob passes through the shell and is fixedly connected to adjacent synchronous pulleys. The outer surface of the knob is provided with anti-slip grooves, which can increase the friction of the outer surface of the knob and avoid slipping during use.

[0011] Furthermore, the four telescopic rods all include a screw, and one end of the screw is fixedly connected to the driven bevel gear, a movable rod is threadedly sleeved on the outer surface of the screw, and the movable rod passes through the mounting frame and is slidably connected thereto, and the movable rod is fixedly connected to an adjacent arc-shaped clamping block, and a threaded groove matching the screw is provided on the inner surface of the movable rod to facilitate the screw to drive the movable rod to move.

[0012] Furthermore, a support block is rotatably sleeved on the outer surface of the screw rod, and the support block is fixedly connected to the mounting frame. The support block has a supporting function symmetrical to the screw rod, which is beneficial to the installation of the screw rod.

[0013] Furthermore, the outer surfaces of the four arc-shaped clamping blocks are fixedly equipped with anti-skid rubber pads on one side of the fire alarm body. The anti-skid rubber pads can increase the friction force of the outer surfaces of the arc-shaped clamping blocks to ensure their fixing effect on the fire alarm body.

[0014] Furthermore, four mounting grooves are symmetrically provided on one side of the outer surface of the mounting frame, and through holes are provided on the inner walls of one side of the four mounting grooves, which is beneficial for the fixed installation of the mounting frame.

[0015] Beneficial effects of the utility model:

[0016] 1. When the utility model is in use, the fire alarm device can clamp and fix the fire alarm body of different specifications and the appearance of which is close to a cylinder through the provided shell, manual drive assembly, main bevel gear, driven bevel gear, telescopic rod and arc-shaped clamping block. Therefore, when performing replacement operation, it is possible to avoid disassembling and assembling the mounting frame, saving time and labor, and being able to quickly realize the replacement of the fire alarm body.

[0017] 2. When the utility model is in use, the fire alarm device can drive multiple telescopic rods to operate with one button through the provided manual drive assembly, main bevel gear and driven bevel gear, thereby ensuring the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 : A three-dimensional diagram of the utility model;

[0020] Figure 2 : Bottom view of the mounting frame of the utility model;

[0021] Figure 3 : A sectional view of a mounting frame of the present utility model.

[0022] The reference numerals are as follows:

[0023] 1. Mounting frame; 2. Fire alarm body; 3. Movable rod; 4. Arc clamp block; 5. Housing; 6. Knob; 7. Through hole; 8. Mounting slot; 9. Screw; 10. Driven bevel gear; 11. Support block; 12. Main bevel gear; 13. Synchronous belt; 14. Synchronous pulley. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 3As shown, it relates to a fire alarm device, including a mounting frame 1, a shell 5 is fixedly passed through one side of the outer surface of the mounting frame 1, a manual drive assembly is installed between the shell 5 and the mounting frame 1, a main bevel gear 12 is rotatably connected to the inner wall of one side of the shell 5, and the main bevel gear 12 is connected to the manual drive assembly, the manual drive assembly includes two synchronous pulleys 14, and the two synchronous pulleys 14 are respectively rotatably connected to the adjacent shells 5 and the mounting frame 1, and the main bevel gear 12 is fixedly connected to the adjacent synchronous pulleys 14, and a synchronous belt 13 is meshed and sleeved between the two synchronous pulleys 14, the manual drive assembly also includes a knob 6, and the knob 6 is rotatably connected to the shell 5, the mounting shaft of the knob 6 is set through the shell 5 and is fixedly connected to the adjacent synchronous pulleys 14, the knob 6 is rotated, the knob 6 can drive the synchronous pulley 14 connected thereto to rotate, and the synchronous pulley 14 can drive another synchronous pulley 14 to rotate through the synchronous belt 13, thereby driving the main bevel gear 12 to rotate.

[0026] The outer surface of the main bevel gear 12 is evenly meshed with four driven bevel gears 10, and a telescopic rod is installed between the four driven bevel gears 10 and the mounting frame 1. The four telescopic rods include a screw rod 9, and one end of the screw rod 9 is fixedly connected to the driven bevel gear 10. The outer surface of the screw rod 9 is threadedly sleeved with a movable rod 3, and the movable rod 3 penetrates the mounting frame 1 and is slidably connected thereto, and the movable rod 3 is fixedly connected to the adjacent arc-shaped clamping block 4. The outer surface of the screw rod 9 is rotatably sleeved with a support block 11, and the support block 11 is fixedly connected to the mounting frame 1. When the main bevel gear 12 rotates, the four driven bevel gears 10 can be synchronously driven to rotate, the driven bevel gear 10 drives the screw rod 9 connected thereto to rotate, and the screw 9 drives the movable rod 3 to move.

[0027] The ends of the four telescopic rods are fixedly connected with arc-shaped clamping blocks 4, and a fire alarm body 2 is arranged between the four arc-shaped clamping blocks 4. The outer surfaces of the four arc-shaped clamping blocks 4 are located on one side of the fire alarm body 2 and are fixedly equipped with anti-slip rubber pads. When the four arc-shaped clamping blocks 4 are close to each other, the fire alarm body 2 can be fixed. When the four arc-shaped clamping blocks 4 are away from each other, the fire alarm body 2 can be released.

[0028] Four mounting grooves 8 are symmetrically formed on one side of the outer surface of the mounting frame 1. A through hole 7 is formed on the inner wall of one side of the four mounting grooves 8. The arrangement of the mounting grooves 8 and the through holes 7 is conducive to fixing the mounting frame 1 to the top of the building.

[0029] Working principle: when the fire alarm body 2 needs to be installed, the fire alarm body 2 is pressed against the mounting frame 1, and then the knob 6 is turned. The knob 6 drives the synchronous pulley 14 connected thereto to rotate. The synchronous pulley 14 drives the main bevel gear 12 to rotate through the synchronous belt 13 and another synchronous pulley 14. When the main bevel gear 12 rotates, it can synchronously drive multiple driven bevel gears 10 to rotate. The driven bevel gear 10 drives the screw 9 connected thereto to rotate. The screw 9 drives the movable rod 3 to move, and the arc clamping block 4 is driven by the movable rod 3 to approach the fire alarm body 2 until the clamping is completed.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fire alarm device, comprising a mounting frame (1), characterized in that: A shell (5) is fixedly passed through one side of the outer surface of the mounting frame (1); a manual drive assembly is installed between the shell (5) and the mounting frame (1); a main bevel gear (12) is rotatably connected to an inner wall of one side of the shell (5), and the main bevel gear (12) is connected to the manual drive assembly; The outer surface of the main bevel gear (12) is evenly meshed with four driven bevel gears (10), and a telescopic rod is installed between the four driven bevel gears (10) and the mounting frame (1); The ends of the four telescopic rods are all fixedly connected with arc-shaped clamping blocks (4), and a fire alarm body (2) is arranged between the four arc-shaped clamping blocks (4).

2. A fire alarm device according to claim 1, characterized in that: The manual drive assembly comprises two synchronous pulleys (14), and the two synchronous pulleys (14) are rotationally connected to adjacent housings (5) and mounting frames (1) respectively, and the main bevel gear (12) is fixedly connected to the adjacent synchronous pulleys (14), and a synchronous belt (13) is meshed and sleeved between the two synchronous pulleys (14).

3. A fire alarm device according to claim 2, characterized in that: The manual drive assembly further comprises a knob (6), and the knob (6) is rotatably connected to the housing (5), and a mounting shaft of the knob (6) passes through the housing (5) and is fixedly connected to an adjacent synchronous pulley (14).

4. A fire alarm device according to claim 1, characterized in that: The four telescopic rods all include a screw rod (9), and one end of the screw rod (9) is fixedly connected to a driven bevel gear (10), a movable rod (3) is threadedly sleeved on the outer surface of the screw rod (9), and the movable rod (3) passes through the mounting frame (1) and is slidably connected thereto, and the movable rod (3) is fixedly connected to an adjacent arc-shaped clamping block (4).

5. A fire alarm device according to claim 4, characterized in that: A support block (11) is rotatably sleeved on the outer surface of the screw rod (9), and the support block (11) is fixedly connected to the mounting frame (1).

6. A fire alarm device according to claim 1, characterized in that: The outer surfaces of the four arc-shaped clamping blocks (4) are located on one side of the fire alarm body (2) and are all fixedly equipped with anti-slip rubber pads.

7. A fire alarm device according to claim 1, characterized in that: Four mounting grooves (8) are symmetrically provided on one side of the outer surface of the mounting frame (1), and through holes (7) are provided on the inner walls of one side of the four mounting grooves (8).

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