Smoke alarm for fire fighting

Abstract

The utility model discloses a fire-fighting smoke alarm comprising a mounting mechanism, the mounting mechanism comprises a fixing plate, the fixing plate is provided with a group of mounting holes, the fixing plate is provided with a protective shell, the top of the protective shell is provided with a rectangular hole, the hole is internally matched with a limiting plate, the limiting plate is provided with a hole, and the hole is internally matched with a limiting block. The limiting block is connected with the protective shell, a bottom plate is arranged at the bottom of the limiting plate, a set of clamping blocks are arranged on the bottom plate, whether a fire disaster exists or not is judged through a smoke sensing detector and an alarm buzzer, a cover plate is arranged on the shell, the cover plate can achieve the protection effect, and a connecting block can rotate through a fixing block and a limiting column; when the gear rotates to a fixed angle, the gear can be driven to rotate, then the limiting plate is pulled to move upwards, so that the bottom plate and the clamping block move upwards, the clamping block is separated from the gear, and after the gear rotates to the fixed angle, the limiting plate is put down, so that the clamping block is clamped on the gear, and the positioning effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting facilities, in particular to a smoke alarm for fire-fighting. Background Art

[0002] Fires can cause great damage to human society and the natural environment. The news has also reported many times that fires have occurred in high-rise residential buildings in various places. Fires cause great losses to the economy and society every year. Among the existing fire prevention measures, fire alarms are often installed in the scene. The existing fire alarms are divided into temperature-sensing type and smoke-sensing type. Each of them triggers the alarm circuit by sensing the temperature and smoke particle concentration in the scene to realize the alarm.

[0003] In this regard, the authorization announcement number CN 215416939 U discloses a fire alarm call device, including an installation top plate, a height adjustment component is fixedly connected to the center position of the bottom surface of the installation top plate, the bottom end of the height adjustment component is fixedly connected to the device shell, the height adjustment component includes a square tube fixedly connected to the center position of the bottom surface of the installation top plate, a sliding cavity is opened in the square tube, the bottom end of the sliding cavity is an open structure, a square column is slidably connected in the sliding cavity, the bottom end of the square column is fixedly connected to the top surface of the device shell, a plurality of fixed slots are opened on one side of the square column, one end of the fixed slot is an open structure, and a socket is opened on one side of the lower part of the square tube near the opening of the fixed slot.

[0004] First of all, the installation position of smoke alarms in some shopping malls is not fixed. They are generally installed on the top of an area because smoke flows upwards. However, it is not convenient to install them on the top of some shopping malls and they need to be installed on the side walls. However, most smoke detectors need to be installed horizontally. If they need to be tilted, the tilt angle must not be greater than 45 degrees. In order to make the smoke alarm horizontal, this solution proposes a fire smoke alarm. Utility Model Content

[0005] The utility model aims to solve the defect of the smoke alarm in the prior art that the installation angle is inconvenient to adjust, and proposes a smoke alarm for fire fighting.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A fire smoke alarm comprises a mounting mechanism, the mounting mechanism comprises a fixing plate, a group of mounting holes are formed on the fixing plate, a protective shell is provided on the fixing plate, a rectangular hole is formed on the top of the protective shell, a limiting plate is matched in the hole, a hole is formed on the limiting plate, a limiting block is matched in the hole, the limiting block is connected to the protective shell, a bottom plate is provided at the bottom of the limiting plate, and a group of locking blocks are provided on the bottom plate;

[0008] Preferably, a hole is opened on the fixing block, a limiting column is fitted in the hole, the fixing block is connected to the protective shell, the limiting column is fixedly penetrated by a connecting block, gears are arranged at both ends of the limiting column, and the gears are engaged and connected with the engaging block.

[0009] Preferably, the alarm device further comprises a main body mechanism, including a shell, a connecting plate is arranged on the shell, and the connecting plate is connected to the connecting block.

[0010] Preferably, a groove is provided on the main body of the alarm, a smoke sensor detector is provided at the bottom of the groove, and an alarm buzzer is provided at the bottom of the groove.

[0011] Preferably, a cover plate is provided on the shell, a smoke inlet is provided on the cover plate, a buzzer hole is provided on the cover plate, a first mounting hole (108) is provided on the cover plate, and a stud is provided on the first mounting hole.

[0012] Preferably, the fixing plate is mounted on the wall by bolts.

[0013] The utility model has the following beneficial effects:

[0014] The fixing plate is installed on the wall by bolts, so that the smoke alarm is fixed on the wall. The smoke sensor detector and the alarm buzzer are used to determine whether there is a fire. A cover plate is provided on the shell body, which can achieve a protective effect. The connecting block can be rotated through the fixing block and the limit column, so that the gear can be driven to rotate, and then the limit plate is pulled upward to move the bottom plate and the engaging block upward, so that the engaging block is disengaged from the gear. After the gear rotates to a fixed angle, the limit plate is lowered so that the engaging block is engaged with the gear, thereby achieving a positioning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structural diagram of the smoke alarm;

[0016] Figure 2 This is a schematic diagram of the main structure of the smoke alarm;

[0017] Figure 3 It is a schematic diagram of the fixing mechanism structure of the smoke alarm;

[0018] Figure 4 This is a schematic diagram of the installation structure of the smoke alarm.

[0019] In the figure: 1. alarm main body; 101. shell; 102. connecting plate; 103. smoke sensor detector; 104. alarm buzzer; 105. cover plate; 106. smoke inlet; 107. buzzer hole; 108. first mounting hole; 109. stud; 2. fixing mechanism; 201. fixing block; 202. limiting column; 203. gear; 204. connecting block; 3. mounting mechanism; 301. fixing plate; 302. protective shell; 303. limiting plate; 304. limiting block; 305. bottom plate; 306. engaging block. The smoke sensor detector 103 and the alarm buzzer 104 are used to determine whether there is a fire. The shell 101 is provided with a cover plate 105, and the cover plate 3 can achieve a protective effect. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 A fire smoke alarm includes a mounting mechanism 3, the mounting mechanism 3 includes a fixing plate 301, a group of mounting holes are opened on the fixing plate 301, a protective shell 302 is arranged on the fixing plate 301, a rectangular hole is opened on the top of the protective shell 302, a limiting plate 303 is matched in the hole, a hole is opened on the limiting plate 303, a limiting block 304 is matched in the hole, the limiting block 304 is connected to the protective shell 302, a bottom plate 305 is arranged at the bottom of the limiting plate 303, a group of engaging blocks 306 are arranged on the bottom plate 305, the fixing mechanism 2 includes a fixing block 201, a hole is opened on the fixing block 201, a limiting column 202 is matched in the hole, the fixing block 201 and The protective shell 302 is connected, the limiting column 202 is fixedly penetrated by the connecting block 204, and gears 203 are arranged at both ends of the limiting column 202. The gear 203 is connected by the engaging block 306. First, the connecting block 204 can be rotated through the fixing block 201 and the limiting column 202, so as to drive the gear 203 to rotate, and then the limiting plate 303 is pulled upward to move the bottom plate 305 and the engaging block 306 upward, so that the engaging block 306 is disengaged from the gear 203. After the gear 203 rotates to a fixed angle, the limiting plate 303 is lowered, so that the engaging block 306 is engaged with the gear 203, thereby achieving the positioning effect.

[0022] The invention also includes an alarm main body mechanism 1, including a shell 101, a connecting plate 102 is arranged on the shell 101, the connecting plate 102 is connected to the connecting block 204, a groove is provided on the alarm main body mechanism 1, a smoke sensor detector 103 is arranged at the bottom of the groove, an alarm buzzer 104 is arranged at the bottom of the groove, and whether there is a fire is determined by the smoke sensor detector 103 and the alarm buzzer 104, a cover plate 105 is arranged on the shell 101, the cover plate 3 can achieve a protective effect, a smoke inlet 106 is arranged on the cover plate 105, a buzzer hole 107 is arranged on the cover plate 105, a first mounting hole 108 is arranged on the first mounting hole 108, a stud 109 is arranged on the first mounting hole 108, and a fixing plate 301 is installed on the wall by bolts, so that the smoke alarm is fixed to the wall.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fire smoke alarm, characterized in that: include: The mounting mechanism (3) is characterized in that the mounting mechanism (3) comprises a fixing plate (301), a group of mounting holes are formed on the fixing plate (301), a protective shell (302) is arranged on the fixing plate (301), a rectangular hole is formed on the top of the protective shell (302), a limiting plate (303) is fitted in the hole, a hole is formed on the limiting plate (303), a limiting block (304) is fitted in the hole, the limiting block (304) is connected to the protective shell (302), a bottom plate (305) is formed at the bottom of the limiting plate (303), and a group of locking blocks (306) are arranged on the bottom plate (305); A fixing mechanism (2), the fixing mechanism (2) comprising a fixing block (201), the fixing block (201) being provided with a hole, a limiting column (202) being fitted in the hole, the fixing block (201) being connected to a protective shell (302), the limiting column (202) being fixedly penetrated by a connecting block (204), gears (203) being provided at both ends of the limiting column (202), the gears (203) being engaged and connected with an engaging block (306).

2. A fire-fighting smoke alarm according to claim 1, characterized in that: It also comprises an alarm main body mechanism (1), the alarm main body mechanism (1) comprising a shell (101), a connecting plate (102) being arranged on the shell (101), and the connecting plate (102) being connected to a connecting block (204).

3. A fire-fighting smoke alarm according to claim 2, characterized in that: The alarm main body mechanism (1) is provided with a groove, a smoke sensor (103) is arranged at the bottom of the groove, and an alarm buzzer (104) is arranged at the bottom of the groove.

4. A fire-fighting smoke alarm according to claim 2, characterized in that: The shell (101) is provided with a cover plate (105), the cover plate (105) is provided with a smoke inlet (106), the cover plate (105) is provided with a buzzer hole (107), the cover plate (105) is provided with a first mounting hole (108), and the first mounting hole (108) is provided with a stud (109).

5. A fire-fighting smoke alarm according to claim 1, characterized in that: The fixing plate (301) is mounted on the wall by means of bolts.

Images