Smoke sensing alarm device

Abstract

The utility model discloses a kind of smoke detection alarm devices, belong to smoke sensor technical field.The utility model includes upper cover, box and mounting bracket, a circle of screw hole is opened on upper cover;At least four foot plates are equipped on mounting bracket, at least two foot plates are equipped with screw hole, upper cover is installed on mounting bracket by bolt;The port of box is screw thread mouth, and upper cover is detachably cooperated on screw thread mouth;Battery, pcb board and smoke sensor 8 are installed in box, and the periphery of box is equipped with at least three claw grooves, and the periphery of upper cover is equipped with a circle of lattice hole.The utility model is detachably designed by cover, and it is convenient to clean replacement and other maintenance requirements of smoke detection alarm.

Description

Technical Field

[0001] This utility model belongs to the field of smoke sensor technology, and in particular relates to a smoke detection alarm device. Background Technology

[0002] Smoke detectors, also known as smoke alarms, are fire safety devices that automatically detect smoke generated in the early stages of a fire and issue a strong audible and visual alarm when the smoke concentration reaches a preset threshold. They are essential early fire warning devices in modern buildings (residential buildings, office buildings, shopping malls, hotels, factories, etc.) and are crucial for personnel evacuation and reducing fire losses.

[0003] Especially in dusty work areas, smoke detectors require regular testing, cleaning, battery replacement, and replacement of the entire unit when due. Utility Model Content

[0004] The purpose of this utility model is to provide a smoke detection alarm device, which, through a detachable cover design, facilitates the cleaning, replacement, and other maintenance requirements of the smoke detection alarm.

[0005] This utility model is achieved through the following technical solution: This utility model is a smoke detection alarm device, including a top cover, a box body and a mounting bracket. The top cover has a ring of screw holes. The mounting bracket has at least four feet, and at least two feet have screw holes. The top cover is installed on the mounting bracket by bolts. The box body has a threaded port, and the top cover is detachably fitted onto the threaded port. A battery, a PCB board and a smoke sensor 8 are installed inside the box body.

[0006] Furthermore, the perimeter of the box body is provided with at least three claw grooves.

[0007] Furthermore, a ring of grille holes is provided on the circumferential surface of the top cover.

[0008] Furthermore, the upper cover has an upper ring, the middle of the upper cover has a top sleeve, a stepped sleeve cooperates with the top sleeve, and the foot plate is located outside the ring opening of the upper ring.

[0009] Furthermore, air holes are provided at the bottom of the box.

[0010] Furthermore, a test button and indicator light are provided on the bottom of the box.

[0011] Furthermore, a retaining plate is provided inside the box, and the PCB board is held in place on the retaining plate.

[0012] This utility model has the following beneficial effects: This utility model features a detachable top cover design, facilitating cleaning, replacement, and other maintenance of the smoke detector alarm. With an independent power supply, the smoke sensor can be cleaned or the battery replaced when the box is removed. Four claw slots are provided, and a rod with four claws supports the box close to the installed top cover. The smoke detector alarm device can then be installed by twisting. During disassembly, the box and its internal electronic components can be removed together. After removing the box, the top cover can be easily cleaned, and dust accumulated in the grille holes can be removed.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the smoke sensor structure; Figure 2 This is a schematic diagram of the bottom structure of the smoke sensor; Figure 3 This is a schematic diagram of the internal structure of a smoke sensor; The attached diagram lists the components represented by each number as follows: 1. Mounting bracket; 2. Top cover; 3. Box body; 4. Claw groove; 5. Test button; 6. Battery; 7. PCB board; 8. Sensor; 101. Foot plate; 102. Stepped sleeve; 201. Grid hole; 202. Top sleeve; 203. Screw hole; 301. Air hole; 302. Threaded opening; 303. Clamping plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Please see Figure 1 , 3 As shown, this utility model is a smoke detection alarm device, which is installed in work areas where dust is easily generated. It is powered by an independent battery 6. The battery 6 is a 9V dry cell battery installed in the box 3 to power electronic components such as PCB board 7, smoke sensor 8, and buzzer. The volume of the buzzer is above 85 decibels.

[0019] The box 3 contains a card plate 303, on which the PCB board 7 is attached. The card plate 303 has a power management circuit for the corresponding battery 6, including a battery voltage detection circuit.

[0020] The bottom of box 3 is equipped with a test button 5 and an indicator light.

[0021] A test button circuit is set on PCB 7. One end of test button 5 is grounded, and the other end is connected to VCC through a pull-up resistor (e.g., 10kΩ), and also connected to the MCU's GPIO input pin. When the button is pressed, the MCU's input pin is pulled low. After the MCU detects the low level, it executes the test procedure: triggering a buzzer to sound and illuminating an LED indicator. The microcontroller unit on PCB 7 is a low-power microcontroller (MCU) that takes the analog or digital signal from the smoke sensor, determines whether the smoke concentration exceeds the threshold, and controls the buzzer to sound an alarm (mode, tone). In addition, the electronic components and circuit settings for the smoke detector alarm are mature solutions on the market, so they will not be described in detail here.

[0022] Specific examples Figure 1 As shown, the upper cover 2 has a ring of screw holes 203, specifically, there are four screw holes 203.

[0023] Correspondingly, the mounting frame 1 is a stainless steel frame with four feet 101. At least two feet 101 have screw holes 203. The screw holes 203 can be welded to the holes of the feet 101 or directly drilled threads. They are arranged diagonally on the mounting frame 1. The other two feet 101 are used to fix the mounting frame 1 to the ceiling inside the room.

[0024] The top cover 2 is designed to be detachable, which facilitates the cleaning, replacement and other maintenance of the smoke detector alarm. With an independent power supply, the smoke sensor 8 or the battery 7 can be cleaned or replaced when the box 3 is removed.

[0025] The top cover 2 is mounted on the mounting bracket 1 by bolts; the port of the box body 3 is a threaded port 302, and the top cover 2 is detachably fitted onto the threaded port 302.

[0026] The upper cover 2 has a ring of grille holes 201 on its circumferential surface.

[0027] Furthermore, the upper cover 2 has an upper ring 103, and the middle of the upper cover 2 has a top sleeve 202. The stepped sleeve 102 cooperates with the top sleeve 202. The foot plate 101 is located outside the ring opening of the upper ring 103, that is, there is a gap between the upper ring 103 and the ceiling to facilitate air flow. The bottom of the box body 3 is provided with an air hole 301 so that the air inside the box body 3 can circulate.

[0028] After determining the installation location, the upper cover 2 is first positioned and installed using the mounting bracket 1. The position of the upper cover 2 is fixed so that it does not need to be removed when periodically detecting the smoke detector alarm device. The outer surface of the housing 3 has at least three claw grooves 4, specifically as follows... Figure 2 The shown claw groove 4 is provided with four claws. The box 3 can be supported by the rod with four claws and brought close to the installed top cover 2. The smoke detection alarm device can be installed by twisting. When disassembling, the box 3 and its internal electronic components can be removed together. After removing the box 3, it is convenient to clean the top cover 2 and remove the dust at the grid hole 201, or directly replace the entire box 3 and internal electronic components.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A smoke detection alarm device, characterized in that, include: The upper cover (2) has a ring of screw holes (203) on it; Mounting bracket (1), which has at least four foot plates (101), at least two of which have screw holes (203), and the top cover (2) is mounted on the mounting bracket (1) by bolts; Box body (3), the port of the box body (3) is a threaded opening (302), and the upper cover (2) is detachably fitted on the threaded opening (302); The housing (3) contains a battery (6), a PCB board (7), and a smoke sensor (8).

2. The smoke detection alarm device according to claim 1, characterized in that, The periphery of the box body (3) is provided with at least three claw grooves (4).

3. A smoke detection alarm device according to claim 1 or 2, characterized in that, The upper cover (2) has a ring of grid holes (201) on its circumferential surface.

4. The smoke detection alarm device according to claim 3, characterized in that, The upper cover (2) has an upper ring (103), and the middle part of the upper cover (2) has a top sleeve (202). The top sleeve (202) cooperates with the stepped sleeve (102), and the foot plate (101) is located outside the ring opening of the upper ring (103).

5. A smoke detection alarm device according to claim 3, characterized in that, The bottom of the box body (3) is provided with an air hole (301).

6. A smoke detection alarm device according to claim 1, characterized in that, The bottom of the box (3) is provided with a test button (5) and an indicator light.

7. A smoke detection alarm device according to claim 1, characterized in that, The box (3) is provided with a card plate (303), and the PCB board (7) is attached to the card plate (303).

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