Independent photoelectric smoke-sensing fire detection alarm

Abstract

The utility model relates to the technical field of alarms, in particular to an independent photoelectric smoke-sensing fire detection alarm. The independent photoelectric smoke-sensing fire detection alarm comprises an alarm body and a mounting base, two symmetrically distributed side convex parts are embedded on the mounting base, and a hooking part for locking the alarm body is mounted in each side convex part. According to the independent photoelectric smoke-sensing fire detection alarm, rapid locking and unlocking of the alarm body and the installation base are achieved through the hooking component, locking can be completed only by rotating and pulling down the U-shaped rod during installation, reverse operation can be completed during disassembly, tools are not needed in the whole process, the installation and maintenance process is greatly simplified, and the installation and maintenance efficiency is improved. And the elastic force of the spring in the hooking part continuously acts on the U-shaped rod, so that the hooking rod section of the U-shaped rod is tightly embedded in the locking hole, and the alarm body is effectively prevented from accidentally falling off.

Description

Technical Field

[0001] This utility model relates to the field of alarm technology, and in particular to a stand-alone photoelectric smoke detector alarm. Background Technology

[0002] When a fire occurs, fire detectors are typically installed in buildings to alert people immediately. However, existing stand-alone photoelectric smoke detectors usually require installation by first mounting the base plate on the ceiling, then aligning the main body with multiple clips and rotating it to lock it in place. Because of the generally high installation position, operators often cannot easily see if the clips and latches are aligned, affecting installation efficiency. Furthermore, the direction of rotation is unclear during disassembly, making installation and disassembly inconvenient. Some stand-alone photoelectric smoke detectors use expansion bolts to directly fix the housing to the building's ceiling. During later maintenance and replacement, the alarm needs to be removed, and repeatedly tightening and loosening the bolts causes inconvenience and limits efficiency.

[0003] Therefore, it is necessary to provide a new stand-alone photoelectric smoke detector to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an independent photoelectric smoke detector and alarm.

[0005] The independent photoelectric smoke detector and alarm provided by this utility model includes an alarm body and a mounting base. Each mounting base has two symmetrically distributed side protrusions, and each side protrusion is equipped with a hook component for locking the alarm body.

[0006] The hook component includes a U-shaped rod, one side of which is inserted into the mounting cavity opened in the side protrusion and elastically connected to the mounting cavity, and the other side of which is located outside the mounting cavity;

[0007] The alarm body has two symmetrically distributed locking holes.

[0008] Preferably, the rod head of the U-shaped rod inserted into the mounting cavity is equipped with a rotating column that is rotatably connected, and a spring is fixedly installed on the rotating column, with the other end of the spring being fixedly connected to the inner top wall of the mounting cavity.

[0009] Preferably, the rotating column is slidably connected to the mounting cavity.

[0010] Preferably, the mounting base has multiple arc-shaped grooves evenly distributed vertically, and the base of the alarm body mounting housing is fixedly fitted with multiple rubber rings, and the rubber rings are adapted to the arc-shaped grooves.

[0011] Preferably, the mounting base has multiple annularly distributed fixing holes.

[0012] Preferably, a rubber pad is fixedly installed on the bottom of the mounting base.

[0013] Compared with related technologies, the stand-alone photoelectric smoke detector and alarm provided by this utility model has the following advantages:

[0014] This invention enables quick locking and unlocking of the alarm body and the mounting base through a hook-and-loop component. Specifically, the U-shaped rod in the hook-and-loop component is elastically connected to the mounting cavity via a spring. During installation, simply rotating and pulling down the U-shaped rod is sufficient to lock the device, and disassembly is performed by reversing the operation. No tools are required throughout the process, greatly simplifying the installation and maintenance process, making it especially suitable for non-professionals. The elastic force of the spring in the hook-and-loop component continuously acts on the U-shaped rod, ensuring that the hook section of the U-shaped rod is tightly fitted into the locking hole, effectively preventing the alarm body from accidentally falling off. The rubber ring at the base of the alarm body matches the arc-shaped groove of the mounting base, forming multiple sets of annular sealing and fitting structures, which not only enhances the stability of the mechanical connection but also reduces shaking caused by gaps. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the stand-alone photoelectric smoke detector and alarm provided by this utility model;

[0016] Figure 2 for Figure 1 The diagram shows the structure of the alarm unit and the mounting base.

[0017] Figure 3 for Figure 2 The diagram shows the structure of the alarm unit.

[0018] Figure 4 for Figure 2 A cross-sectional view of the mounting base shown.

[0019] Figure 5 for Figure 4 A magnified structural diagram of point A shown.

[0020] The following are the labels in the diagram: 1. Alarm body; 1a. Locking hole; 2. Mounting base; 2a. Fixing hole; 2b. Arc-shaped groove; 21. Side protrusion; 21a. Mounting cavity; 3. Hook component; 31. U-shaped rod; 32. Rotating column; 33. Spring; 33. Under rubber pad; 5. Rubber ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] Please see Figures 1 to 5 This utility model provides an independent photoelectric smoke detector alarm, which includes an alarm body 1 and a mounting base 2.

[0024] In the embodiments of this utility model, please refer to Figures 1 to 5 The alarm body 1 has two symmetrically distributed locking holes 1a, and the mounting base 2 has multiple annularly distributed fixing holes 2a. The mounting base 2 has two symmetrically distributed side protrusions 21, and each side protrusion 21 has a hook component 3 for locking the alarm body 1.

[0025] The hook component 3 includes a U-shaped rod 31. One side of the U-shaped rod 31 is inserted into the mounting cavity 21a opened in the side protrusion 21 and is elastically connected to the mounting cavity 21a. The other side of the U-shaped rod 31 is located outside the mounting cavity 21a. The rod head of the U-shaped rod 31 inserted into the mounting cavity 21a is equipped with a rotating column 32 that is rotatably connected. A spring 33 is fixedly installed on the rotating column 32. The other end of the spring 33 is fixedly connected to the inner top wall of the mounting cavity 21a. The rotating column 32 is slidably connected to the mounting cavity 21a.

[0026] It should be noted that: the mounting base 2 is fixed to the ceiling with screws. Before installing the alarm body 1, the U-shaped rod 31 is rotated to drive the hook section of the U-shaped rod 31 away from the inner circle of the mounting base 2. Then the alarm body 1 is inserted into the mounting base 2 and the locking hole 1a is kept close to the corresponding U-shaped rod 31. Then the U-shaped rod 31 is pulled down so that the hook section of the U-shaped rod 31 can rotate to the locking hole 1a (at this time, the spring 33 is stretched). When the hook section of the U-shaped rod 31 corresponds to the locking hole 1a, the U-shaped rod 31 is released. Therefore, the hook section of the U-shaped rod 31 is inserted into the locking hole 1a and the alarm body 1 is locked.

[0027] During disassembly, pulling down the U-shaped rod 31 causes the hook section of the U-shaped rod 31 to slide off from the locking hole 1a and rotate away from the inner ring of the mounting base 2. Then, pulling down the alarm body 1 allows the mounting base 2 to be removed from the mounting base 2. The overall operation is simple and convenient.

[0028] Furthermore, a rubber pad 4 is fixedly installed on the bottom of the mounting base 2. The rubber pad 4 can buffer external vibrations (such as wall resonance or slight collisions) and reduce the impact of vibrations on internal components.

[0029] In addition, spring 33 is made of high-strength fatigue-resistant spring material (such as piano wire) to improve its service life, while rubber ring 5 is made of silicone rubber material with excellent aging resistance to improve its resistance to ultraviolet rays and temperature changes.

[0030] In the embodiments of this utility model, please refer to Figures 1 to 5 The mounting base 2 has multiple arc-shaped grooves 2b that are equidistantly distributed vertically. The base of the alarm body 1 is fitted with multiple rubber rings 5, and the rubber rings 5 ​​are compatible with the arc-shaped grooves 2b.

[0031] It should be noted that since the rubber ring 5 and the arc-shaped groove 2b are compatible with each other, the alarm body 1 can be initially installed after being inserted into the mounting base 2. Furthermore, the cooperation between the rubber ring 5 and the arc-shaped groove 2b can also prevent dust and moisture from entering the interior of the alarm body 1 to a certain extent, reducing the probability of contamination of the optical detection components.

[0032] The working principle of the stand-alone photoelectric smoke detector and alarm provided by this utility model is as follows:

[0033] This application achieves quick locking and unlocking of the alarm body 1 and the mounting base 2 through the hook component 3. Specifically, the U-shaped rod 31 in the hook component 3 is elastically connected to the mounting cavity 21a through the spring 33. During installation, locking can be completed simply by rotating and pulling down the U-shaped rod 31. Disassembly can be performed by reversing the operation. No tools are required throughout the process, which greatly simplifies the installation and maintenance process and is especially suitable for non-professionals. The elastic force of the spring 33 in the hook component 3 continuously acts on the U-shaped rod 31, so that the hook section of the U-shaped rod 31 is tightly fitted into the locking hole 1a, effectively preventing the alarm body 1 from accidentally falling off. The rubber ring 5 at the base of the alarm body 1 is adapted to the arc-shaped annular groove 2b of the mounting base 2 to form multiple sets of annular sealing and fitting structures, which not only enhances the stability of the mechanical connection, but also reduces the shaking caused by gaps.

[0034] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A stand-alone photoelectric smoke detector and alarm, characterized in that, The device includes an alarm body (1) and a mounting base (2). The mounting base (2) has two symmetrically distributed side protrusions (21) fitted on it, and each side protrusion (21) is equipped with a hook component (3) for locking the alarm body (1). The hook component (3) includes a U-shaped rod (31), one side of the U-shaped rod (31) is inserted into the mounting cavity (21a) opened in the side protrusion (21) and is elastically connected to the mounting cavity (21a), and the other side of the U-shaped rod (31) is located outside the mounting cavity (21a); The alarm body (1) has two symmetrically distributed locking holes (1a).

2. The stand-alone photoelectric smoke detector and alarm according to claim 1, characterized in that, The U-shaped rod (31) is inserted into the mounting cavity (21a) and the rod head is equipped with a rotating column (32) that is rotatably connected. A spring (33) is fixedly installed on the rotating column (32), and the other end of the spring (33) is fixedly connected to the inner top wall of the mounting cavity (21a).

3. The stand-alone photoelectric smoke detector and alarm according to claim 2, characterized in that, The rotating column (32) is slidably connected to the mounting cavity (21a).

4. The stand-alone photoelectric smoke detector and alarm according to claim 1, characterized in that, The mounting base (2) has multiple arc-shaped grooves (2b) that are equidistantly distributed vertically. The base of the alarm body (1) is fitted with multiple rubber rings (5), and the rubber rings (5) are adapted to the arc-shaped grooves (2b).

5. The stand-alone photoelectric smoke detector and alarm according to claim 1, characterized in that, The mounting base (2) has multiple annularly distributed fixing holes (2a).

6. The stand-alone photoelectric smoke detector and alarm according to claim 5, characterized in that, A rubber pad (4) is fixedly installed on the bottom of the mounting base (2).

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