Smoke alarm convenient to disassemble and assemble for security and protection

Abstract

The utility model discloses a security smoke alarm convenient to disassemble and assemble, which comprises a mounting seat, a fixing mechanism and a smoke alarm main body, a first cylinder is mounted on the mounting seat through the fixing mechanism, the first cylinder is provided with a shell, the smoke alarm main body is arranged in the shell, and a first circular ring is fixed at the bottom end of the first cylinder. A second circular ring is mounted on the outer ring of the bearing; a second cylinder is mounted on the second circular ring; an arc-shaped groove is formed in the outer side of the second cylinder; a first spring is mounted on the bearing, and a third circular ring is arranged at one end of the first spring. The shell at the bottom end of the first cylinder is integrally rotated, the elastic force of the first spring is amplified, the shell and the first cylinder can be separated, it is guaranteed that the first cylinder and the shell are connected only through the first spring, and therefore the smoke dispersing operation in the smoke sensing cavity of the shell is expanded, and a large amount of smoke is prevented from being retained in the shell; conditions of continuous alarm and false alarm of the smoke alarm main body are avoided, and overall use is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of security smoke alarms, in particular to a security smoke alarm which is easy to disassemble and assemble. Background Art

[0002] In modern society, fires are generally caused by people's negligence. If a fire is not effectively extinguished, it will cause significant losses to life and property. Therefore, in order to extinguish the fire in a timely and effective manner, it is necessary to provide more convenient and effective fire-fighting equipment. Among them, smoke alarms are such important security fire-fighting equipment. Smoke alarms achieve fire prevention by monitoring the concentration of smoke. Ion smoke sensors are used internally. Ion smoke sensors are technologically advanced, stable and reliable sensors. They are widely used in various fire alarm systems, and their performance is far superior to gas-sensitive resistor fire alarms.

[0003] The structure of an existing smoke alarm generally includes an alarm body and a base. The base is fixed to the ceiling. The base and the alarm body are fixed by bolts. When the alarm is removed, the tightness of the bolts is completely controlled by humans, which may cause thread slippage and is more troublesome to install. At the same time, some smoke alarms only have a smoke inlet. Since smoke can only be discharged from the smoke inlet, a large amount of smoke is retained in the smoke sensing chamber, causing the detector to continue to alarm, resulting in false alarms of the detector. In addition, it is not convenient to disassemble and install, which affects the maintenance efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art that the base and the alarm body are fixed by bolt connection, the tightness of the bolts is completely controlled by humans when they are removed, there is the possibility of thread slippage, and the installation is more troublesome. At the same time, some smoke alarms are only provided with a smoke inlet. Since smoke can only be discharged from the smoke inlet, a large amount of smoke is retained in the smoke sensing chamber, causing the detector to continue to alarm, resulting in false alarms of the detector, and it is not convenient to disassemble and install, which affects the maintenance efficiency. A smoke alarm that is easy to disassemble and assemble for security is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A smoke alarm for security that is easy to disassemble and assemble comprises a mounting seat, a fixing mechanism and a smoke alarm body. A first cylinder is mounted on the mounting seat via the fixing mechanism, the first cylinder is provided with a shell, the smoke alarm body is arranged inside the shell, a first ring is fixed to the bottom end of the first cylinder, a bearing is mounted on the periphery of the first ring, a second ring is mounted on the outer ring of the bearing, a second cylinder is mounted on the second ring, an arc groove is provided on the outer side of the second cylinder, a first spring is mounted on the bearing, a third ring is arranged at one end of the first spring, and the third ring is fixed inside the shell.

[0007] Preferably, the mounting seat is in a cylindrical shape, a sliding opening is provided on one side of the mounting seat, a round hole is provided on one side inside the mounting seat, and the fixing mechanism is slidably fitted on the sliding opening and the round hole.

[0008] Preferably, the fixing mechanism comprises a T-shaped plate, the T-shaped plate is slidably matched with the sliding opening, a long rod is arranged on the T-shaped plate, and the long rod is matched in the round hole.

[0009] Preferably, a through hole is provided on the first cylinder, and the long rod is fitted in the circular hole through the through hole.

[0010] Preferably, an air outlet is provided on the shell, a groove is provided on the inner side of the top end of the shell, a second spring is installed in the groove, and an arc plate is installed at one end of the second spring.

[0011] Preferably, the arc-shaped plate matches the arc-shaped groove.

[0012] The utility model has the following beneficial effects:

[0013] 1. The long rod of the fixing mechanism passes through the through hole of the first cylinder and is matched inside the circular hole of the mounting seat. The T-plate cooperates with the sliding mouth, so that the outer shell and the first cylinder are mounted on the mounting seat through the fixing mechanism. The first cylinder and the outer shell inside the mounting seat can be disassembled by pulling the fixing mechanism. It is more convenient to use and the operation is relatively simple, which is convenient for users to disassemble it as a whole, improves maintenance efficiency, does not use bolts for installation, avoids the problem of thread slippage, and is more convenient to install.

[0014] 2. Rotate the outer shell at the bottom of the first cylinder as a whole to amplify the elastic force of the first spring so that the outer shell and the first cylinder can be separated, ensuring that the first cylinder and the outer shell are connected only by the first spring, thereby expanding the smoke dispersion operation inside the smoke sensing cavity of the outer shell, avoiding a large amount of smoke from being retained in the outer shell, avoiding the smoke alarm body from continuing to alarm and false alarm, and ensuring overall use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the explosion of the overall structure of the first cylinder and the shell;

[0016] Figure 2 It is a schematic diagram of the overall structure when the first cylinder is separated from the outer shell;

[0017] Figure 3 It is a schematic diagram of the overall structure when the mounting base and the fixing mechanism are separated;

[0018] Figure 4 It is a schematic diagram of the overall structure.

[0019] In the figure: 1, mounting seat; 101, sliding mouth; 102, circular hole; 2, fixing mechanism; 201, T-plate; 202, long rod; 3, first cylinder; 301, through hole; 302, first ring; 303, bearing; 304, second ring; 305, second cylinder; 306, arc groove; 307, first spring; 308, third ring; 4, housing; 401, air outlet; 402, groove; 403, second spring; 404, arc plate; 5, smoke alarm body. 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 smoke alarm for security that is easy to disassemble and assemble, comprises a mounting seat 1, a fixing mechanism 2 and a smoke alarm body 5. A first cylinder 3 is mounted on the mounting seat 1 through the fixing mechanism 2. The first cylinder 3 mounted on the mounting seat 1 through the fixing mechanism 2 is more convenient to disassemble. The first cylinder 3 is provided with a shell 4. The smoke alarm body 5 is arranged inside the shell 4. A first ring 302 is fixed at the bottom end of the first cylinder 3. A bearing 303 is installed on the periphery of the first ring 302. A second ring 304 is installed on the outer ring of the bearing 303. A second cylinder 305 is installed on the second ring 304. An arc groove 306 is opened on the outer side of the second cylinder 305. A first spring 307 is mounted on the bearing 303. A third ring 308 is arranged at one end of the first spring 307. The third ring 308 is fixed inside the shell 4.

[0022] An air outlet 401 is provided on the shell 4, and smoke existing in the shell 4 is discharged through the air outlet 401. A groove 402 is provided on the inner side of the top of the shell 4, and a second spring 403 is installed in the groove 402. An arc plate 404 is installed at one end of the second spring 403. The arc plate 404 cooperates with the arc groove 306. When the shell 4 is rotated, the arc plate 404 rotates inside the arc groove 306 of the second cylinder 305, so that the first spring 307 on the third ring 308 can rotate together through the bearing 303, so that the shell 4 and the first cylinder 3 are opened, the smoke exhaust range is expanded, the rapid cleaning of the accumulated smoke inside the shell 4 is ensured, and the reuse of the smoke alarm body 5 is ensured.

[0023] The mounting seat 1 is in the shape of a cylinder, with a sliding opening 101 provided on one side of the mounting seat 1, and a circular hole 102 provided on one side inside the mounting seat 1. The fixing mechanism 2 is slidably fitted on the sliding opening 101 and the circular hole 102. The fixing mechanism 2 includes a T-shaped plate 201, which is slidably fitted with the sliding opening 101. A long rod 202 is arranged on the T-shaped plate 201, and the long rod 202 is fitted in the circular hole 102. A through hole 301 is provided on the first cylinder 3, and the long rod 202 is fitted in the circular hole 102 through the through hole 301. The T-shaped plate 201 at the sliding opening 101 is pulled, and the long rod 202 is taken out from the circular hole 102 and the through hole 301, thereby realizing the installation and disassembly of the first cylinder 3 on the mounting seat 1.

[0024] When using a smoke alarm that is easy to disassemble for security, the mounting base 1 is mounted on the designated position of the ceiling where the user's smoke alarm body 5 needs to be installed. The smoke alarm body 5 is arranged inside the shell 4. The long rod 202 of the fixing mechanism 2 passes through the through hole 301 of the first cylinder 3 at the top of the shell 4 and is matched inside the round hole 102 of the mounting base 1. The T-plate 201 is matched with the sliding mouth 101, so that the shell 4 and the first cylinder 3 are mounted on the mounting base 1 through the fixing mechanism 2. The first cylinder 3 and the shell 4 inside the mounting base 1 can be disassembled by pulling the fixing mechanism 2. It is more convenient to use and the operation is relatively simple, which is convenient for users to disassemble it as a whole, improve the maintenance efficiency, and replace and overhaul the smoke alarm body 5 inside the shell 4. When a large amount of smoke is trapped in the When the shell 4 is inside the smoke sensing chamber of the shell 4, the user can hold the shell 4 at the bottom end of the first cylinder 3 and rotate it as a whole. When the shell 4 rotates, the arc plate 404 installed inside the groove 402 through the second spring 403 can be separated from the arc groove 306 of the second cylinder 305. At the same time, the first spring 307 installed inside the shell 4 through the third ring 308 drives the bearing 303 to rotate between the first ring 302 and the second ring 304. By amplifying the elastic force of the first spring 307, the shell 4 and the first cylinder 3 can be separated, ensuring that the first cylinder 3 and the shell 4 are only connected through the first spring 307, thereby expanding the smoke dispersion operation inside the smoke sensing chamber of the shell 4, avoiding the smoke alarm body 5 from continuing to alarm and false alarm, and ensuring overall use.

[0025] 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 smoke alarm for security purposes that is easy to assemble and disassemble, comprising a mounting base (1), a fixing mechanism (2) and a smoke alarm body (5), characterized in that: A first cylinder (3) is mounted on the mounting seat (1) via a fixing mechanism (2); the first cylinder (3) is provided with a shell (4); the smoke alarm body (5) is arranged inside the shell (4); a first ring (302) is fixed at the bottom end of the first cylinder (3); a bearing (303) is mounted on the periphery of the first ring (302); a second ring (304) is mounted on the outer ring of the bearing (303); a second cylinder (305) is mounted on the second ring (304); an arc groove (306) is provided on the outer side of the second cylinder (305); a first spring (307) is mounted on the bearing (303); a third ring (308) is arranged at one end of the first spring (307); and the third ring (308) is fixed inside the shell (4).

2. The smoke alarm for security purposes that is easy to assemble and disassemble according to claim 1, characterized in that: The mounting seat (1) is in the shape of a cylinder, a sliding opening (101) is provided on one side of the mounting seat (1), a circular hole (102) is provided on one side inside the mounting seat (1), and the fixing mechanism (2) is slidably fitted on the sliding opening (101) and the circular hole (102).

3. The smoke alarm for security purposes that is easy to assemble and disassemble according to claim 2, characterized in that: The fixing mechanism (2) comprises a T-shaped plate (201), the T-shaped plate (201) is slidably matched with the sliding opening (101), a long rod (202) is arranged on the T-shaped plate (201), and the long rod (202) is matched at the circular hole (102).

4. The smoke alarm for security purposes that is easy to assemble and disassemble according to claim 3 is characterized in that: The first cylinder (3) is provided with a through hole (301), and the long rod (202) is fitted into the circular hole (102) through the through hole (301).

5. The smoke alarm for security purposes that is easy to assemble and disassemble according to claim 1, characterized in that: An air outlet (401) is provided on the shell (4), a groove (402) is provided on the inner side of the top end of the shell (4), a second spring (403) is installed in the groove (402), and an arc plate (404) is installed at one end of the second spring (403).

6. The smoke alarm for security purposes that is easy to assemble and disassemble according to claim 5, characterized in that: The arc-shaped plate (404) matches the arc-shaped groove (306).

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