CN215730110U

CN215730110U - Wireless automatic fire alarm

Info

Publication number: CN215730110U
Application number: CN202120893846.8U
Authority: CN
Inventors: 王涛; 叶恭良
Original assignee: Zhejiang Jugan Internet Of Things Technology Co ltd; Fire Rescue Corps Of Tibet Autonomous Region
Current assignee: Zhejiang Jugan Internet Of Things Technology Co ltd; Fire Rescue Corps Of Tibet Autonomous Region
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2022-02-01
Anticipated expiration: 2031-04-25

Abstract

The utility model discloses a wireless automatic fire alarm which comprises an installation base and an outer shell which is detachably installed on the installation base, wherein a PCB group used for sensing smoke concentration and a battery pack used for supplying power to the PCB group are installed in the outer shell, and an anti-dismounting device is arranged in the outer shell.

Description

Wireless automatic fire alarm

Technical Field

The utility model relates to the technical field of fire safety, in particular to a wireless automatic fire alarm.

Background

The smoke detector alarm is a different name of a smoke detector or a smoke alarm, and the smoke detector alarm realizes fire prevention by monitoring the concentration of smoke. Generally, an ion type smoke sensor is adopted inside, namely a smoke sensor, is an advanced sensor with stable and reliable work, is widely applied to various fire alarm systems, and has far better performance than a gas-sensitive resistor type fire alarm.

At present, a smoke alarm generally comprises a base, an outer shell and a PCB (printed circuit board). Wherein, the base passes through the bolt fastening at the ceiling, and the PCB board is installed in the shell body, and the mode of joint is passed through at the top of shell body and is installed on the base, simple to operate to convenient to detach. However, this simple installation method can be easily removed by a person with a malicious intent, thereby losing the function of smoke alarm. In addition, when cleaning staff cleaned the ceiling, the cleaning staff could not collide the smoke alarm, thereby causing the installation to be loose and even dropping, not only having certain potential safety hazard, but also losing the smoke alarm function.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wireless automatic fire alarm which is convenient to install, has an anti-disassembly function and is better in use stability according to the defects of the prior art.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the utility model provides a wireless conflagration automatic alarm, includes installation base and demountable installation shell body on the installation base, install the group battery that is used for responding to the PCB group of smog concentration and is used for supplying power for PCB group in the shell body, be provided with in the shell body and prevent the dismouting and put, prevent that the dismouting is put including mobile setting at the locking post of shell body inner wall, be equipped with the locking hole that supplies the locking post to peg graft on the installation base.

Preferably, an upper fixing seat and a lower fixing seat which are parallel to each other are fixed on the inner wall of the outer shell, a through hole for the locking column to pass through is formed in the center of the upper fixing seat and the center of the lower fixing seat, a bearing plate is fixed on the locking column, a pressure spring is sleeved on the locking column, the top end of the pressure spring is fixedly connected with the bottom side of the upper fixing seat, the bottom end of the pressure spring is connected to the upper surface of the bearing plate in a pressing mode, and the bearing plate is located between the upper fixing seat and the lower fixing seat.

Preferably, a battery mounting groove for mounting the battery pack is fixed in the outer shell, a conductive sheet matched with the battery pack is arranged on the battery mounting groove, and the conductive sheet is electrically connected to the PCB group.

Preferably, a labyrinth base is fixed in the outer shell, a smoke sensing labyrinth is arranged above the labyrinth base, a plurality of air inlets are formed in the outer shell, the air inlets are communicated to the smoke sensing labyrinth, an opposite jet frame is arranged on the labyrinth base in a matched mode with the smoke sensing labyrinth, and a metal shielding cover is arranged below the labyrinth base and corresponds to the opposite jet frame.

Preferably, the shell body is provided with a plurality of insect-proof nets, and the insect-proof nets are installed at the air inlets.

Preferably, the correlation frame is a light reflection device, a smoke sensor matched with the light reflection device is installed in the metal shielding cover, and a signal of the smoke sensor is connected to the PCB group.

Preferably, a battery cover is provided at a bottom side of the outer case corresponding to the battery mounting groove.

The utility model has the following characteristics and beneficial effects:

adopt above-mentioned technical scheme, simple structure, simple to operate feels the alarm through addding anti-dismounting device on traditional cigarette to make the cigarette of installing in the eminence feel the alarm installation more firm, can not lead to the cigarette to feel the alarm and drop because of maliciously or unexpected situation, not only can cause certain potential safety hazard to the pedestrian of below, and the most important cigarette feels the alarm and can lose alarming function.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a cross-sectional view of the present invention.

Fig. 2 is a schematic structural view of the tamper-evident mechanism in fig. 1.

In the figure, 1-installation base, 2-outer shell, 3-anti-disassembly device, 301-pressure spring, 302-upper fixed seat, 303-bearing plate, 304-lower fixed seat, 305-locking hole, 306-locking column, 4-PCB group, 5-battery cover, 6-battery group, 7-conducting plate, 8-battery installation groove, 9-insect-proof net, 10-metal shielding cover, 11-correlation frame, 12-smoke-sensing maze and 13-maze base.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The utility model provides a wireless automatic fire alarm, which comprises an installation base 1 and an outer shell 2 detachably installed on the installation base 1, wherein a PCB (printed circuit board) group 4 for sensing smoke concentration and a battery pack 6 for supplying power to the PCB group 4 are installed in the outer shell 2, an anti-disassembly device 3 is arranged in the outer shell 2, the anti-disassembly device 3 comprises a locking column 306 movably arranged on the inner wall of the outer shell 2, and a locking hole 305 for inserting the locking column 306 is formed in the installation base 1.

Among the above-mentioned technical scheme, feel the alarm through addding anti-dismounting device 3 on traditional cigarette to make the cigarette of installing in the eminence feel the alarm installation more firm, can not lead to the cigarette to feel the alarm and drop because of malicious or unexpected situation, not only can cause certain potential safety hazard to the pedestrian of below, and the most important cigarette feels the alarm and can lose alarming function.

Specifically, the connected mode between shell body 2 and the installation base 1 is through the mode of rotatory joint, and installation base 1 radial outer wall is central symmetrical structure and is provided with a plurality of sliding connection grooves, the cell body in sliding connection groove transversely sets up, the inner wall bottom of shell body 2 corresponds sliding connection groove and is provided with the sliding connection piece.

It can be understood that, during the installation, the notch department in sliding connection groove is placed through the space between the adjacent sliding connection groove to the sliding connection piece, then through rotating for sliding connection piece sliding connection to sliding connection inslot, and then realize detachable connected mode.

Specifically, as shown in fig. 2, an upper fixing seat 302 and a lower fixing seat 304 which are relatively parallel are fixed on the inner wall of the outer shell 2, through holes for a locking column 306 to pass through are formed in the centers of the upper fixing seat 302 and the lower fixing seat 304, a bearing plate 303 is fixed on the locking column 306, a pressure spring 301 is sleeved on the locking column 306, the top end of the pressure spring 301 is fixedly connected with the bottom side of the upper fixing seat 302, the bottom end of the pressure spring 301 is pressed to the upper surface of the bearing plate 303, and the bearing plate 303 is located between the upper fixing seat 302 and the lower fixing seat 304.

In the above technical scheme, the upper surface of the mounting base 1 supports the bottom end of the locking column 306, when the sliding connection block is matched with the sliding connection groove and is in sliding connection in place, the locking column 306 corresponds to the locking hole 305, the elastic force of the pressure spring 301 acts on the force bearing plate 303, the force bearing plate 303 receives the elastic force and then drives the locking column 306 to be inserted into the locking hole 305, and finally the locking effect is achieved.

Further, the upper surface of the mounting base 1 is provided with a hemispherical concave surface around the locking hole 305, and the bottom end of the locking column 306 is of a hemispherical structure. Moreover, the lower surface of the mounting base 1 is provided with a groove for the locking column 306 to penetrate through, and the groove extends to the radial outer wall of the mounting base 1, so that when the mounting base 1 needs to be dismounted, the bottom end of the locking column 306 is pressed through external force, the end part of the hemispherical structure is matched with the hemispherical concave surface of the locking hole 305 to play a role in guiding, and the mounting base is convenient to dismount.

It can be understood, according to above-mentioned technical scheme with the back that the alarm installation is finished to the cigarette, the ceiling is hugged closely to the lower surface of installation base 1, consequently, the tip of locking post 306 also very is close to the ceiling, consequently ordinary person or property staff can't touch locking post 306, only when the alarm is felt to needs demolish cigarette, the staff also need through equipment of ascending a height, climb to the high place and just can demolish the alarm is felt to the cigarette. Therefore, the smoke alarm is very stable to mount.

According to the further arrangement of the utility model, a battery installation groove 8 for installing the battery pack 6 is fixed in the outer shell 2, a conducting strip 7 matched with the battery pack 6 is arranged on the battery installation groove 8, and the conducting strip 7 is electrically connected to the PCB group 4.

The utility model is further provided with a labyrinth base 13 fixed in the outer shell 2, a smoke-sensitive labyrinth 12 arranged above the labyrinth base 13, a plurality of air inlets arranged on the outer shell 2 and communicated to the smoke-sensitive labyrinth 12, a correlation frame 11 arranged on the labyrinth base 13 and matched with the smoke-sensitive labyrinth 12, and a metal shielding cover 10 arranged below the labyrinth base 13 and corresponding to the correlation frame 11. The correlation frame 11 is a light reflection device, a smoke sensor matched with the light reflection device is installed in the metal shielding case 10, and a signal of the smoke sensor is connected to the PCB group 4.

Among the above-mentioned technical scheme, through setting up smoke sensing maze 12 to smog can be dispersed even entering to the maze in, and then ensure the precision of smog response.

Specifically, the opposite-incidence frame 11 is a light reflection device, so that the concentration of smoke is finally determined by irradiating light to solid particles in the smoke and receiving the reflected light by the smoke sensor of the metal shielding case 10

According to the utility model, a plurality of insect-proof nets 9 are arranged on the outer shell 2, and the insect-proof nets 9 are arranged at the air inlets.

Among the above-mentioned technical scheme, through setting up fly net 9, and then avoid leading to smoke alarm to appear the phenomenon of wrong report police because little winged insect passes through the air intake and enters into smoke alarm.

Further, a battery cover 5 is provided at the bottom side of the outer case 2 corresponding to the battery mounting groove 8.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments, including the components, without departing from the principles and spirit of the utility model, and still fall within the scope of the utility model.

Claims

1. The utility model provides a wireless fire automatic alarm, its characterized in that, is including installation base (1) and demountable installation shell body (2) on installation base (1), install PCB group (4) that are used for responding to smog concentration and be used for group battery (6) for PCB group (4) power supply in shell body (2), be provided with in shell body (2) and prevent dismouting device (3), prevent dismouting device (3) including mobile locking post (306) that set up at shell body (2) inner wall, be equipped with locking hole (305) that supply locking post (306) to peg graft on installation base (1).

2. The wireless automatic fire alarm device according to claim 1, wherein an upper fixing seat (302) and a lower fixing seat (304) which are relatively parallel are fixed on the inner wall of the outer shell (2), a through hole for a locking column (306) to pass through is formed in the center of the upper fixing seat (302) and the lower fixing seat (304), a bearing plate (303) is fixed on the locking column (306), a pressure spring (301) is sleeved on the locking column (306), the top end of the pressure spring (301) is fixedly connected with the bottom side of the upper fixing seat (302), the bottom end of the pressure spring (301) is in pressure connection with the upper surface of the bearing plate (303), and the bearing plate (303) is located between the upper fixing seat (302) and the lower fixing seat (304).

3. The wireless automatic fire alarm according to claim 1, wherein a battery mounting groove (8) for mounting the battery pack (6) is fixed in the outer housing (2), a conductive sheet (7) matched with the battery pack (6) is arranged on the battery mounting groove (8), and the conductive sheet (7) is electrically connected to the PCB group (4).

4. The wireless automatic fire alarm device according to claim 1, wherein a labyrinth base (13) is fixed in the outer shell (2), a smoke-sensitive labyrinth (12) is arranged above the labyrinth base (13), a plurality of air inlets are arranged on the outer shell (2), the air inlets are communicated to the smoke-sensitive labyrinth (12), a correlation frame (11) is arranged on the labyrinth base (13) in a manner of being matched with the smoke-sensitive labyrinth (12), and a metal shielding cover (10) is arranged below the labyrinth base (13) and corresponds to the correlation frame (11).

5. A wireless automatic fire alarm according to claim 4, characterised in that a plurality of insect nets (9) are arranged on the outer casing (2), and the insect nets (9) are mounted to the air inlets.

6. The wireless automatic fire alarm according to claim 4, characterized in that the correlation frame (11) is a light reflection device, a smoke sensor matched with the light reflection device is installed in the metal shielding case (10), and the smoke sensor is connected with the PCB group (4) through signals.

7. A wireless automatic fire alarm according to claim 1 wherein the bottom side of the outer case (2) is provided with a battery cover (5) corresponding to the battery mounting groove (8).