CN216871350U

CN216871350U - Smoke fire alarm

Info

Publication number: CN216871350U
Application number: CN202220309186.9U
Authority: CN
Inventors: 左力
Original assignee: Chongqing Caiqiang Intelligent Technology Co ltd
Current assignee: Chongqing Caiqiang Intelligent Technology Co ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-07-01
Anticipated expiration: 2032-02-16

Abstract

The utility model discloses a smoke fire alarm, which comprises a smoke alarm body, an upper shell, a lower shell and a protection mechanism, wherein the upper shell is arranged on the smoke alarm body; a top plate is fixedly arranged at the upper end of the upper shell, and a mounting hole is arranged on the top plate in a penetrating manner; the smoke alarm comprises a lower shell, an upper shell, a lower shell, a locking assembly and a smoke alarm body, wherein the upper end of the lower shell is fixedly provided with a mounting plate, the lower end of the upper shell is provided with a containing groove allowing the mounting plate to penetrate through, the locking assembly is arranged between the upper shell and the mounting plate, and the smoke alarm body is positioned in the lower shell; the protection mechanism comprises four protection rods, pin shafts are fixedly mounted at the end portions of the protection rods and rotatably connected to the U-shaped frame, torsion springs are arranged on the pin shafts and the U-shaped frame support, four sliding grooves are formed in the mounting plate, the sliding grooves are connected with the U-shaped frame through compression springs, and the protection rods are in sliding fit with the sliding grooves. The smoke fire alarm has the advantages of convenient maintenance and convenient disassembly and assembly, and simultaneously has a protection function.

Description

Smoke fire alarm

Technical Field

The utility model relates to the technical field of smoke alarms, in particular to a smoke fire alarm.

Background

With the development of modern cities, public places such as large-scale entertainment, office, lodging, leisure and shopping are more and more, people can discover the source of a fire as soon as possible and warn people to avoid great loss of life and property, and most indoor tops are generally provided with fire smoke alarms at present.

However, the existing fire smoke alarm is difficult to replace when damaged due to the fact that the existing fire smoke alarm is bonded through glue during installation. And after the fire smoke alarm is used for a period of time, the fire smoke alarm can suddenly drop, the continuous use of the fire smoke alarm is influenced, and the use requirement cannot be met.

Disclosure of Invention

To the not enough of above-mentioned prior art, the technical problem that this patent application will solve provides a smog fire alarm convenient to overhaul and maintain, makes things convenient for the dismouting, has safeguard function simultaneously.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a smoke fire alarm comprises a smoke alarm body, an upper shell, a lower shell and a protection mechanism; a top plate is fixedly arranged at the upper end of the upper shell, and a mounting hole is arranged on the top plate in a penetrating manner;

the smoke alarm comprises a lower shell, an upper shell, a lower shell, a locking assembly and a smoke alarm body, wherein the upper end of the lower shell is fixedly provided with a mounting plate, the lower end of the upper shell is provided with a containing groove allowing the mounting plate to penetrate through, the locking assembly is arranged between the upper shell and the mounting plate, and the smoke alarm body is positioned in the lower shell;

the protection mechanism comprises four protection rods, pin shafts are fixedly mounted at the end portions of the protection rods and rotatably connected to the U-shaped frame, torsion springs are arranged on the pin shafts and the U-shaped frame support, four sliding grooves are formed in the mounting plate, the sliding grooves are connected with the U-shaped frame through compression springs, and the protection rods are in sliding fit with the sliding grooves.

Thus, when the ceiling plate is installed, the ceiling plate is connected with the ceiling through screws. When needing to overhaul or change, only need pull down the mounting panel, convenient operation is swift, and the epitheca need not to change, can reduce cost. The mounting plate is pushed upwards to the accommodating groove of the upper shell, and locking is carried out by the aid of the locking assembly to complete mounting.

Under the initial condition, compression spring pressurized, the fender rod is located the spout, the fender rod gets into the holding tank along with the mounting panel, after locking mechanism became invalid, the mounting panel drops downwards, compression spring releases, drive the outside motion of fender rod, after the fender rod moves to the mounting panel outside, under the effect of torsional spring, rotate through the round pin axle, the fender rod rotates to inferior valve one side, the lower extreme of fender rod is located the place of inferior valve, when the inferior valve falls to the ground, mounting panel or fender rod earlier with ground contact, the inferior valve does not contact, protect the smoke alarm body in the inferior valve.

The two opposite sides of the sliding groove are provided with guide grooves, and two sides of the U-shaped frame are provided with guide blocks in sliding fit with the guide grooves. The movement of the U-shaped frame is convenient to guide.

Wherein, the lower extreme fixed mounting of guard bar has the horizontal pole. Facilitating better protection.

The locking assembly comprises at least 2 through holes arranged on the circumferential direction of the side wall of the accommodating groove, a locking block is arranged in each through hole in a sliding mode, an inclined plane is arranged on the lower side of the end part of each locking block, a stop block is fixedly arranged on the outer side of each through hole, the locking block is outwards connected with a handle through a connecting rod, a compression spring is sleeved on the outer side of the connecting rod, and the compression spring is located between the stop block and the locking block; the circumference of mounting panel is provided with the draw-in groove, the draw-in groove is pegged graft with the locking round pin and is cooperated. The mounting panel removes to the holding tank, and the mounting panel promotes the inclined plane of locking piece, and compression spring pressurized, locking piece remove to the perforation, and when draw-in groove and locking piece are just to the time, under compression spring's elasticity, locking piece card is gone into in the draw-in groove, fixes the mounting panel. When needs are dismantled, outwards pull the handle, remove the locking piece from the draw-in groove, can take off the mounting panel.

Wherein, the upper end of the top plate is bonded with viscose. And when the ceiling is installed, the top plate is bonded with the ceiling and then connected through the screw.

To sum up, this smog fire alarm has easy access and maintenance, makes things convenient for the dismouting, has safeguard function's advantage simultaneously.

Drawings

Fig. 1 is a schematic view of a smoke fire alarm according to the present invention.

Fig. 2 is an exploded view of fig. 1.

FIG. 3 is a schematic view of the mounting plate of FIG. 2 with the guard bar retracted into the chute.

Fig. 4 is a schematic view of fig. 3 in a protection state.

Fig. 5 is a side view of fig. 4.

FIG. 6 is the view of FIG. 5 in a state where the guard bar is retracted.

Fig. 7 is a schematic view of the locking mechanism.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "upper, lower" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

As shown in fig. 1 to 3, a smoke fire alarm comprises a smoke alarm body, an upper shell 1, a lower shell 2 and a protection mechanism; a top plate 3 is fixedly arranged at the upper end of the upper shell, and a mounting hole 4 is arranged on the top plate in a penetrating manner;

the smoke alarm comprises a lower shell, an installation plate 5, a locking assembly and a smoke alarm body, wherein the upper end of the lower shell is fixedly provided with the installation plate, the lower end of the upper shell is provided with an accommodating groove allowing the installation plate to penetrate through, the locking assembly is arranged between the upper shell and the installation plate, and the smoke alarm body is positioned in the lower shell;

the protection mechanism comprises four protection rods 6, pin shafts are fixedly mounted at the end portions of the protection rods and rotatably connected to a U-shaped frame 7, torsion springs are arranged on the pin shafts and the U-shaped frame support, four sliding grooves are formed in the mounting plate, the sliding grooves are connected with the U-shaped frame through compression springs 8, and the protection rods are in sliding fit with the sliding grooves.

Thus, when the ceiling board is installed, the ceiling board is connected with the ceiling board through screws. When needing to overhaul or change, only need pull down the mounting panel, convenient operation is swift, and the epitheca need not to change, can reduce cost. The mounting plate is pushed upwards to the accommodating groove of the upper shell, and locking is carried out by the aid of the locking assembly to complete mounting.

Wherein, the both sides that the spout is relative are provided with guide way 9, the both sides of U-shaped frame are provided with the guide block with guide way sliding fit. The movement of the U-shaped frame is convenient to guide.

Wherein, the lower end of the guard bar is fixedly provided with a cross bar 10. Facilitating better protection.

The locking assembly comprises at least 2 through holes arranged on the circumferential direction of the side wall of the accommodating groove, a locking block 11 slides in each through hole, an inclined plane is arranged on the lower side of the end part of the locking block, a stop block 12 is fixedly arranged on the outer side of each through hole, the locking block is outwards connected with a handle 14 through a connecting rod 13, a compression spring 15 is sleeved on the outer side of each connecting rod, and the compression spring is positioned between the stop block and the locking block; the circumference of mounting panel is provided with draw-in groove 16, the draw-in groove is pegged graft with the locking round pin and is cooperated. The mounting panel removes to the holding tank, and the mounting panel promotes the inclined plane of locking piece, and compression spring pressurized, locking piece remove to the perforation, and when draw-in groove and locking piece are just to the time, under compression spring's elasticity, locking piece card is gone into in the draw-in groove, fixes the mounting panel. When needs are dismantled, outwards pull the handle, remove the locking piece from the draw-in groove, can take off the mounting panel.

The smoke detector main part includes battery module, single chip module, bee calling organ, alarm lamp optical module and smoke transducer, single chip module and battery module, bee calling organ, alarm lamp optical module and smoke transducer electric connection. The battery module is fixed with the mounting plate, the singlechip module is installed at the lower end of the battery module, buzzers are arranged on two sides of the singlechip module, the alarm lamp optical module is installed at the lower end of the singlechip module, and the smoke sensor is installed at the lower end of the alarm lamp optical module. And the singlechip module is used for controlling other electrical elements.

Specifically, the model of the single chip microcomputer module is STM32F103RCT6, and the model of the smoke sensor is GM-202B. And the compression spring and the torsion spring are selected according to actual requirements.

The principle is as follows:

when the ceiling plate is installed, the top plate is connected with a ceiling through screws. When needing to overhaul or change, only need pull down the mounting panel, convenient operation is swift, and the epitheca need not to change, can reduce cost. The mounting plate is pushed upwards to the accommodating groove of the upper shell, and locking is carried out by the aid of the locking assembly to complete mounting.

Finally, it should be noted that: various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. A smoke fire alarm is characterized by comprising a smoke alarm body, an upper shell (1), a lower shell (2) and a protection mechanism;

a top plate (3) is fixedly arranged at the upper end of the upper shell, and a mounting hole (4) penetrates through the top plate;

an installation plate (5) is fixedly installed at the upper end of the lower shell, an accommodating groove allowing the installation plate to penetrate is formed in the lower end of the upper shell, a locking assembly is arranged between the upper shell and the installation plate, and the smoke alarm body is located in the lower shell;

the protection mechanism comprises four protection rods (6), a pin shaft is fixedly mounted at the end part of each protection rod, the pin shaft is rotatably connected to a U-shaped frame (7), a torsion spring is arranged between the pin shaft and the U-shaped frame support, four sliding grooves are formed in the mounting plate, the sliding grooves are connected with the U-shaped frame through compression springs (8), and the protection rods are in sliding fit with the sliding grooves.

2. A smoke fire alarm according to claim 1 wherein the opposing sides of the chute are provided with guide slots (9) and the sides of the U-shaped frame are provided with guide blocks which slidably engage the guide slots.

3. A smoke fire alarm as claimed in claim 1 wherein a cross bar (10) is fixedly mounted to the lower end of the guard bar.

4. The smoke fire alarm device as claimed in claim 1, wherein the locking assembly comprises at least 2 through holes arranged on the circumferential direction of the side wall of the accommodating groove, a locking block (11) is arranged in each through hole, an inclined surface is arranged on the lower side of the end part of the locking block, a stop block (12) is fixedly arranged on the outer side of each through hole, the locking block is outwards connected with a handle (14) through a connecting rod (13), a compression spring (15) is sleeved on the outer side of the connecting rod, and the compression spring is positioned between the stop block and the locking block; the circumference of mounting panel is provided with draw-in groove (16), the draw-in groove is pegged graft with the locking round pin and is cooperated.

5. A smoke fire alarm as claimed in claim 1 wherein the upper end of the top panel is bonded with adhesive.