CN215868079U

CN215868079U - Fire alarm equipment that building was used

Info

Publication number: CN215868079U
Application number: CN202121529815.0U
Authority: CN
Inventors: 钟声
Original assignee: Hubei Chengyu Engineering Technology Co ltd
Current assignee: Hubei Chengyu Engineering Technology Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2022-02-18
Anticipated expiration: 2031-07-07

Abstract

The utility model relates to the technical field of fire alarm equipment, in particular to fire alarm equipment for buildings, which comprises a base, wherein an inductor is arranged on the base, a shell is connected with the base through a screw, a positioning device is fixedly arranged at the upper end of the shell, an inserting groove is formed in the side wall of the shell, a dustproof net is inserted in the inserting groove, metal rings are arranged at the upper end and the lower end of the dustproof net, and the upper end of the dustproof net is in threaded connection with the bottom end of the inserting groove. Very convenient and practical has promoted the efficiency of dust cleaning work greatly.

Description

Fire alarm equipment that building was used

Technical Field

The utility model relates to the technical field of fire-fighting alarm equipment, in particular to fire-fighting alarm equipment for buildings.

Background

At present, as people's safety awareness is continuously improved, basically all buildings in public places are provided with fire-fighting alarm devices, and when a fire breaks out, the sensors in the existing fire-fighting alarm devices can sense smoke and send out alarm sound to remind people of rapidly evacuating, however, the fire alarm is installed on the wall for a long time without cleaning, which leads to the dust on the alarm, while the fire alarm in the prior art does not have the dust-proof function, the accumulation of dust on the sensor when the alarm falls down causes the sensor to be insensitive, so that in the event of a fire, it may result in the sensor not being able to react in time and thus not being able to sound an alarm, the operation that the existing alarm needs to disassemble the shell to clean the inductor is very troublesome, and the working efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fire-fighting alarm device for buildings, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a fire alarm device for buildings comprises a base, wherein an inductor is installed on the base, a shell is connected with the base through screws, a positioning device is fixedly arranged at the upper end of the shell, an insertion groove is formed in the side wall of the shell, a dustproof net is inserted in the insertion groove, metal rings are arranged at the upper end and the lower end of the dustproof net, the upper end of the dustproof net is in threaded connection with the bottom end of the insertion groove, a through hole is formed in the upper end of the shell, the through hole penetrates through the positioning device, a bearing is installed in the through hole, the bearing is matched with a connecting column, the connecting column is fixedly arranged on a rotating frame, the rotating frame is inserted in the shell, an ejection device is arranged on the side wall of the rotating frame, a rotating nut is in threaded connection with the upper end of the connecting column, the rotating nut is connected with a rotating disc through a connecting bolt, the rotating disc is inserted in the connecting column and is positioned at the lower end of the rotating nut, and a spring is sleeved on the part of the connecting bolt between the rotating disc and the rotating nut.

Preferably, the positioning device comprises a positioning block and a steel ball, the positioning block is welded and fixed on the shell, the steel ball is welded and fixed at the upper end of the positioning block, a positioning ball hole is formed in the lower end of the rotating disc, and the steel ball is inserted into the positioning ball hole when a spring on the connecting bolt is in a natural state.

Preferably, the ejection device comprises an ejection block and a spring, the ejection block is inserted into a telescopic hole, the telescopic hole is formed in the side wall of the rotating frame, two ends of the spring are respectively welded and fixed to the bottom ends of the ejection block and the telescopic hole, the ejection block is inserted into an ejection groove in a non-working state, and the ejection groove is formed in the shell.

Preferably, at most one third of the curved surface part of the ejection block is inserted into the ejection slot, and the width of the ejection slot is smaller than that of the ejection block.

Preferably, the diameter of the positioning ball hole is smaller than that of the steel ball, and at most one third of the steel ball is inserted into the positioning ball hole.

Compared with the prior art, the utility model has the beneficial effects that:

through the practicality of this technical scheme, set up the dust screen on the shell of siren, thereby can avoid the dust to fall into the inside accumulation of siren to lead to on the inductor siren can not normally work like this, and when clearing up the dust, need not dismantle the shell of siren, only need rotate the knob, then drive the swivel mount and rotate, launch the piece on the swivel mount and launch on launching the dust screen and just can give the bullet with the dust on the dust screen and fall like this, unusual convenience and practicality, the efficiency of dust cleaning work has been promoted greatly.

Drawings

FIG. 1 is an exploded schematic view of a fire alarm apparatus;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is an enlarged schematic view at B of FIG. 1;

FIG. 4 is a schematic structural view of the housing;

FIG. 5 is a schematic view of a rotary disk;

fig. 6 is a schematic structural view of the rotating frame.

In the figure: the device comprises a base 1, a shell 2, an inductor 3, a dust screen 4, a rotating frame 5, a bearing 6, a connecting column 7, a connecting bolt 8, a rotating disk 9, a spring 10, a rotating nut 11, a telescopic hole 12, an insertion groove 13, a through hole 14, a steel ball 15, a positioning block 16, an ejection block 17, a positioning ball hole 18 and an ejection groove 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution:

the utility model provides a fire alarm equipment that building was used, the on-line screen storage device comprises a base 1, install inductor 3 on the base 1, and the screw connection has shell 2, the fixed positioner and the positioner that are provided with in upper end of shell 2 include locating piece 16 and steel ball 15, locating piece 16 welded fastening is on

shell

2, 15 welded fastening of steel ball is in the upper end of locating piece 16, and the lower extreme of rotary disk 9 has seted up locating ball hole 18, and when spring 10 on the connecting bolt 8 was in natural state, steel ball 15 pegs graft in locating ball hole 18 and the diameter of locating ball hole 18 is less than the diameter of steel ball 15, and steel ball 15 has one third at most to peg graft in locating ball hole 18.

The side wall of the shell 2 is provided with an insertion groove 13, the insertion groove 13 is inserted with a dust screen 4, the upper end and the lower end of the dust screen 4 are provided with metal rings, the upper end of the dust screen 4 is in threaded connection with the bottom end of the insertion groove 13, the upper end of the shell 2 is provided with a through hole 14, the through hole 14 penetrates through the positioning device, a bearing 6 is installed in the through hole 14, the bearing 6 is matched with a connecting column 7, the connecting column 7 is fixedly arranged on a rotating frame 5, the rotating frame 5 is inserted in the shell 2, the side wall is provided with an ejection device which comprises an ejection block 17 and a spring 10, the ejection block 17 is inserted in a telescopic hole 12, the telescopic hole 12 is arranged on the side wall of the rotating frame 5, the two ends of the spring 10 are respectively welded and fixed at the bottom ends of the ejection block 17 and the telescopic hole 12, the ejection block 17 is inserted in an ejection groove 19 in a non-working state, the ejection groove 19 is arranged in the shell 2, and the curved surface part of the ejection block 17 is inserted in the ejection groove 19 by at most one third, and the width of the ejection slot 19 is smaller than the width of the ejection block 17.

The upper end threaded connection of spliced pole 7 has swivel nut 11, and swivel nut 11 passes through connecting bolt 8 with rotary disk 9 to be connected, and rotary disk 9 pegs graft on spliced pole 7, and is in swivel nut 11's lower extreme, and connecting bolt 8 has cup jointed spring 10 on the part between rotary disk 9 and swivel nut 11.

The working principle is as follows: when the utility model works, the shell 2 is fixed on the base 1 by using screws, then the base 1 is fixedly installed on the wall, the dustproof net 4 is inserted in the insertion groove 13 of the shell 2, the dustproof net 4 is positioned in the side wall of the shell 2, and the rotating frame 5 and the inductor 3 are positioned in the shell 2, so that the dustproof net 4 can play a dustproof role on the inductor 3, dust can not enter the interior of the shell 2 and is accumulated on the inductor 3, the cleanness of the inductor 3 is ensured, the sensitivity of the inductor 3 is ensured, the dust is accumulated on the dustproof net 4 after a long time, the dust needs to be cleaned, otherwise, the sensitivity of the inductor 3 is also hindered, the ejection block 17 on the rotating frame 5 is positioned in the ejection groove 19 on the inner wall of the shell 2 before the rotating frame 5 is not rotated, and the steel ball 15 on the positioning block 16 is positioned in the positioning ball hole 18 on the rotating disc 9, because the rotary disk 9 is connected with the rotary nut 11 through the connecting bolt 8, and the rotary nut 11 is fixedly connected with the connecting column 7, the rotary rack 5 can be fixed, when the rotary rack 5 needs to be rotated to clean dust on the dust screen 4, only the rotary disk 9 needs to be rotated, because of the spherical particularity of the steel balls 15 and the spring 10 is arranged at the upper end of the rotary disk 9, the rotary disk 9 can ascend under the action of a spherical surface when the rotary disk 9 is rotated, so that the spring 10 is in a compressed state, the steel balls 15 can be helped to smoothly exit the positioning ball holes 18, the rotation of the rotary rack 5 is realized, the positioning ball holes 18 are matched with the next steel ball 15, then the rotary disk 9 moves downwards under the action of the spring 10 and is clamped on the steel balls 15 to realize positioning again, and the continuous rotation of the rotary disk 9 can realize the positioning and rotation of the rotary rack 5, due to the action of the curved surface of the ejection block 17, and the ejection block 17 retracts into the telescopic hole 12 under the extrusion of the side wall of the ejection groove 19 when the rotating frame 5 rotates, the spring 10 is in a compressed state, thus, the ejection block 17 can be ensured to be smoothly rotated out of the ejection slot 19 and ejected onto the dustproof net 4, this causes the dust-proof net 4 to vibrate, and then shakes off the dust on the dust-proof net 4, therefore, when cleaning dust, the rotating disc 9 needs to be rotated relatively quickly so as to ensure that the dust on the dust screen 4 falls off, after the cleaning work is finished, the rotating disc 9 is rotated again so that the ejection block 17 is clamped in the ejection slot 19 again, therefore, the steel ball 15 plays a role in positioning so that the rotating frame 5 is fixed, the ejection block 17 does not abut against the dust screen 4, the dust screen 4 is communicated with the inductor 3, and the work of the inductor 3 is not hindered.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fire alarm equipment that building was used, includes base (1), its characterized in that: the sensor is characterized in that an inductor (3) is mounted on the base (1), a shell (2) is connected with the inductor through screws, a positioning device is fixedly arranged at the upper end of the shell (2), an insertion groove (13) is formed in the side wall of the shell (2), a dust screen (4) is inserted in the insertion groove (13), metal rings are arranged at the upper end and the lower end of the dust screen (4), the upper end of the dust screen is in threaded connection with the bottom end of the insertion groove (13), a through hole (14) is formed in the upper end of the shell (2), the through hole (14) penetrates through the positioning device, a bearing (6) is mounted in the through hole (14), the bearing (6) is matched with a connecting column (7), the connecting column (7) is fixedly arranged on a rotating frame (5), the rotating frame (5) is ejected in the shell (2), a rotating device is arranged on the side wall, and a rotating nut (11) is connected with the upper end of the connecting column (7) through threads, rotatory nut (11) are connected through connecting bolt (8) with rotary disk (9), and rotary disk (9) are pegged graft on spliced pole (7), and are in the lower extreme of rotatory nut (11), spring (10) have been cup jointed on the part that connecting bolt (8) are in between rotary disk (9) and rotatory nut (11).

2. A fire alarm apparatus for a building as claimed in claim 1, wherein: the positioning device comprises a positioning block (16) and steel balls (15), the positioning block (16) is fixedly welded on the shell (2), the steel balls (15) are fixedly welded at the upper end of the positioning block (16), the lower end of the rotating disc (9) is provided with positioning ball holes (18), and when a spring (10) on the connecting bolt (8) is in a natural state, the steel balls (15) are inserted in the positioning ball holes (18).

3. A fire alarm apparatus for a building as claimed in claim 1, wherein: the ejection device comprises an ejection block (17) and a spring (10), the ejection block (17) is inserted into a telescopic hole (12), the telescopic hole (12) is formed in the side wall of the rotating frame (5), two ends of the spring (10) are respectively welded and fixed to the bottom ends of the ejection block (17) and the telescopic hole (12), the ejection block (17) is inserted into an ejection groove (19) in a non-working state, and the ejection groove (19) is formed in the shell (2).

4. A fire alarm apparatus for a building as claimed in claim 3, wherein: at most one third of the curved surface part of the ejection block (17) is inserted in the ejection slot (19), and the width of the ejection slot (19) is smaller than that of the ejection block (17).

5. A fire alarm apparatus for buildings as claimed in claim 2, wherein: the diameter of the positioning ball hole (18) is smaller than that of the steel ball (15), and at most one third of the steel ball (15) is inserted into the positioning ball hole (18).