Smoke alarm

Abstract

The utility model relates to the technical field of smoke alarm, and discloses a smoke alarm which comprises a base, a filter screen for protecting an analysis sensor is arranged on the outer wall of the base, a protective shell for protecting the filter screen is arranged on the outer wall of the filter screen, two fixing grooves are formed in the outer walls of the two sides of the base, and inner grooves are formed in the outer walls, located on one sides of the two fixing grooves, of the base. A connecting plate is slidably connected to the outer wall of the inner groove, a spring is arranged between the connecting plate and the base, the spring is fixedly connected with the connecting plate and the base, a fixing block is fixedly connected to the outer wall of the connecting plate, and clamping assemblies matched with the fixing block are fixedly connected to the outer walls of the two sides of the protective shell; according to the utility model, the protective shell of the smoke alarm can be quickly disassembled, and the operation of workers is facilitated, so that the filter screen can be quickly cleaned, the dust on the filter screen is prevented from influencing the work of the smoke sensor, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of smoke alarms, and in particular to a smoke alarm. Background Art

[0002] Smoke alarm, also known as fire smoke alarm, smoke sensor, smoke inductor, etc., from the internal principle, the smoke alarm is to achieve fire prevention by monitoring the concentration of smoke. The smoke alarm uses ion smoke sensor inside, which is a technologically advanced, stable and reliable sensor. It is widely used in various fire alarm systems and its performance is far superior to gas sensitive resistor type fire alarms.

[0003] Regarding the above-mentioned related technologies, the inventor believes that a filter is usually installed inside the existing smoke alarm to protect the ion analysis smoke sensor. After the smoke alarm is used for a long time, a large amount of dust usually accumulates on the outer wall of the filter, affecting the sensing and operation of the smoke sensor. The traditional smoke alarm protective shell is relatively troublesome to disassemble. Therefore, a smoke alarm is proposed to solve the above problems.

[0004] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0005] In order to solve the above problems, the present application provides a smoke alarm.

[0006] The smoke alarm provided in this application adopts the following technical solution:

[0007] Two fixing grooves are provided on the outer walls on both sides of the base, and inner grooves are provided on the outer walls of the base located on one side of the two fixing grooves. The outer walls of the inner grooves are slidably connected with a connecting plate, a spring is provided between the connecting plate and the base, and the spring is fixedly connected to the connecting plate and the base, the outer wall of the connecting plate is fixedly connected with a fixing block, and the outer walls of both sides of the protective shell are fixedly connected with a snap-fit assembly adapted to the fixing block.

[0008] Preferably, the snap-fit assembly includes two snap blocks, which are fixed to the outer walls on both sides of the protective shell. The outer walls of the two snap blocks are both provided with fixing holes, and the fixing holes are adapted to the fixing blocks.

[0009] Preferably, the outer wall of the connecting plate facing away from the fixed block is fixedly connected to a connecting rod, and the spring is slidably sleeved on the connecting rod, and the connecting rod rotates through the base and is fixedly connected to the pulling block.

[0010] Preferably, both side outer walls of the base are fixedly connected with mounting blocks for easy installation.

[0011] In summary, the present application includes the following beneficial technical effects:

[0012] By means of the provided filter screen, by pulling the pulling block, it drives the connecting rod to move, thereby causing the connecting rod to drive the connecting plate to contract. Then, the connecting plate drives the fixing block to contract synchronously, so that the fixing block is separated from the fixing hole on the clamping block, and then the protective shell is disassembled, enabling the worker to clean the dust on the surface of the filter screen. After cleaning, by pulling the pulling block again, the clamping blocks on both sides of the protective shell are docked with the fixing grooves, and then the pulling block is released, causing the spring to drive the connecting plate to rebound, and further causing the fixing block to be clamped with the fixing hole on the clamping block to complete the installation. Compared with the prior art, it can quickly disassemble the protective shell of the smoke alarm, facilitating the operation of the worker, and thus can quickly clean the filter screen, avoiding the dust on the filter screen from affecting the operation of the smoke sensor, and greatly improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall schematic diagram of the embodiment of the application;

[0014] Figure 2 is the schematic diagram of the filter screen structure of the embodiment of the application;

[0015] Figure 3 is Figure 2 the enlarged schematic diagram of the structure at A in

[0016] Description of the reference numerals: 1, base; 2, mounting block; 3, protective shell; 4, clamping block; 5, fixing hole; 6, pulling block; 7, filter screen; 8, fixing groove; 9, inner groove; 10, fixing block; 11, connecting plate; 12, spring; 13, connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further elaborates on the present application in conjunction with the attached Figures 1-3 drawings for a more detailed description.

[0018] The embodiment of the present application discloses a smoke alarm. Refer to Figures 1-3A smoke alarm includes a base 1. The outer wall of the base 1 is provided with a filter 7 for protecting the analysis sensor. The filter 7 is convenient for protecting the smoke sensor and electronic components such as the circuit board inside the smoke alarm. The outer wall of the filter 7 is provided with a protective shell 3 for protecting the filter 7. The protective shell 3 is convenient for protecting the protective shell 3 and the entire interior. Two fixing grooves 8 are provided on the outer walls of the base 1 on both sides. The outer wall of the base 1 on one side of the two fixing grooves 8 is provided with an inner groove 9. The outer wall of the inner groove 9 is slidably connected to a connecting plate 11. A spring 12 is provided between the connecting plate 11 and the base 1, and the spring 12 is fixedly connected to the connecting plate 11 and the base 1. The outer wall of the connecting plate 11 is fixedly connected to a fixing block 10 The outer walls of both sides of the protective shell 3 are fixedly connected with a snap-fit assembly adapted to the fixed block 10. By pulling the connecting rod 13 to shrink, the connecting rod 13 drives the connecting plate 11 to shrink, and then the fixing block 10 is separated from the snap-fit assembly, realizing the disassembly of the protective shell 3, which is convenient for workers to clean the filter screen 7. When the cleaning is completed, the connecting rod 13 can be pulled to shrink the fixing block 10 and dock the snap-fit assembly with the two fixing grooves 8, thereby releasing the pull on the connecting rod 13, and the elasticity of the spring 12 drives the connecting plate 11 to rebound, so that the connecting plate 11 drives the fixing block 10 to engage with the snap-fit assembly, completing the installation of the protective shell 3.

[0019] The locking assembly includes two locking blocks 4, which are fixed to the outer walls of both sides of the protective shell 3. The outer walls of the two locking blocks 4 are provided with fixing holes 5, and the fixing holes 5 are adapted to the fixing blocks 10. The two locking blocks 4 are docked with the two fixing grooves 8 to facilitate their installation, and the fixing holes 5 are separated or engaged with the fixing blocks 10 to facilitate the installation and disassembly of the two locking blocks 4, thereby realizing rapid disassembly and assembly of the protective shell 3.

[0020] The connecting plate 11 is fixedly connected to the outer wall of the fixed block 10 with a connecting rod 13, and the spring 12 is slidably sleeved on the connecting rod 13. The connecting rod 13 rotates through the base 1 and is fixedly connected to the pulling block 6. By pulling the pulling block 6, the connecting rod 13 is easily pulled.

[0021] The outer walls on both sides of the base 1 are fixedly connected with mounting blocks 2 for easy installation. The mounting blocks 2 cooperate with bolts to facilitate the installation of the smoke alarm.

[0022] The implementation principle of a smoke alarm in an embodiment of this application is as follows: First, when the smoke sensor has been used for a long time and its filter screen 7 needs to be cleaned, the pull blocks 6 on both sides can be pulled, so that the pull blocks 6 on both sides drive the connecting plate 11 to retract through the connecting rod 13. Furthermore, the connecting plate 11 drives the fixing block 10 to retract, so that the fixing block 10 is separated from the fixing hole 5 on the clamping block 4, and then the protective shell 3 can be quickly disassembled. Then, the filter screen 7 can be cleaned. After the cleaning is completed, the pull block 6 can be pulled, and the fixing block 10 can be contracted through the connecting rod 13 and the connecting plate 11, so that the clamping blocks 4 on both sides of the protective shell 3 are docked with the fixing grooves 8. Then, the pulling of the pull block 6 is released, so that the spring 12 drives the connecting plate 11 to rebound, and then the fixing block 10 is engaged with the fixing hole 5, thus completing the cleaning of the filter screen 7.

[0023] Finally, the following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0024] Secondly, in the attached drawings of the disclosed embodiments of this utility model, only the structures related to the disclosed embodiments of this application are involved. For other structures, the general design can be referred to. Without conflict, the same embodiment and different embodiments of this utility model can be combined with each other;

[0025] Finally: The above are only the preferred embodiments of this utility model and are not used to limit this utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this utility model shall be included within the protection scope of this utility model.

[0026] The above are all the preferred embodiments of this application and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A smoke alarm, comprising a base (1), characterized in that: The outer wall of the base (1) is provided with a filter screen (7) for protecting the analysis sensor, and the outer wall of the filter screen (7) is provided with a protective shell (3) for protecting the filter screen (7). Two fixing grooves (8) are provided on the outer walls of both sides of the base (1), and inner grooves (9) are provided on the outer walls of the base (1) located on one side of the two fixing grooves (8). The outer wall of the inner groove (9) is slidably connected with a connecting plate (11), a spring (12) is provided between the connecting plate (11) and the base (1), and the spring (12) is fixedly connected to the connecting plate (11) and the base (1), the outer wall of the connecting plate (11) is fixedly connected with a fixing block (10), and the outer walls of both sides of the protective shell (3) are fixedly connected with a snap-fit assembly adapted to the fixing block (10).

2. The smoke alarm according to claim 1, characterized in that: The clamping assembly comprises two clamping blocks (4), the two clamping blocks (4) being fixed to the outer walls of both sides of the protective shell (3), the outer walls of the two clamping blocks (4) being provided with fixing holes (5), and the fixing holes (5) being adapted to the fixing blocks (10).

3. A smoke alarm according to claim 1, characterized in that: The connecting plate (11) is fixedly connected to the outer wall of the fixed block (10), and the spring (12) is slidably sleeved on the connecting rod (13). The connecting rod (13) rotates through the base (1) and is fixedly connected to the pull block (6).

4. A smoke alarm according to claim 1, characterized in that: Both side outer walls of the base (1) are fixedly connected with mounting blocks (2) for easy installation.

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