Sealed circulating pipeline of active smoke alarm

Abstract

The utility model provides a sealed circulating pipeline of an active smoke alarm, which relates to the technical field of smoke alarms and comprises an alarm shell, a first air inlet arranged at the top of the alarm shell and a second air inlet arranged at the top of the alarm shell. In this way, during use, the filter element can effectively prevent dust, impurities and large-particle matter from entering the circulating pipeline, it is avoided that the matter interferes with smoke detection of the smoke sensor, the detection accuracy and reliability are remarkably improved, the stable air inlet quality is beneficial to maintaining the smoke detection stability, and the smoke detection efficiency is improved. According to the smoke alarm, the air inlet quality is stable, false alarms and missed alarms caused by impurities are reduced, the performance of the smoke alarm is more stable and reliable, meanwhile, the stable air inlet quality is beneficial to maintaining the stability of smoke detection, the false alarms and the missed alarms caused by the impurities are reduced, and the performance of the smoke alarm is more stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke alarms, in particular to a sealed circulation pipeline of an active smoke alarm. Background Art

[0002] According to a utility model disclosed in Chinese patent number CN213483057U, a smoke sensing automatic alarm is disclosed, including a bearing plate and a spray mechanism, a bearing box is fixed on the upper end surface of the bearing plate, and a battery pack is placed in the bearing box, and a smoke sensing alarm body is fixed on the lower end surface of the smoke sensing alarm body, and the spray mechanism passes through the bearing plate, and the spray mechanism includes an annular water pipe, a ferrule, an electric water valve and a nozzle, and the annular water pipe passes through the ferrule, and the ferrule is fixed on the outside of the smoke sensing alarm body, and an alarm sound hole is opened at the bottom of the smoke sensing alarm body. In the smoke sensing automatic alarm, the smoke sensing alarm body can monitor the air in the environment, and when the smoke sensing alarm body detects that the smoke concentration in the air is too high, the alarm sound can be emitted through the alarm sound hole, and the electric water valve is automatically opened, and water is sprayed in a mist form through the nozzle, which is convenient, timely and effective to reduce the smoke concentration.

[0003] The above-mentioned comparative documents and prior art have the following technical problems:

[0004] 1. Smoke alarms play a vital role in fire prevention and monitoring. However, the accuracy and timeliness of smoke detection in existing active smoke alarms still need to be improved. Among them, the sealing and circulation efficiency of the smoke transmission channel have an important impact on the performance of the alarm. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a sealed circulation pipeline for an active smoke alarm.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sealed circulation duct of an active smoke alarm, comprising an alarm housing, a first air inlet is provided on the top of the alarm housing, a second air inlet is provided on the top of the alarm housing, a gas filter is provided at the bottom of the second air inlet, a filter element is provided on one side of the gas filter, a circuit board is provided on one side of the alarm housing, and a positioning hole is provided on the back of the alarm housing.

[0007] Preferably, an air outlet is provided on one side of the alarm housing, and the air outlet is connected to the alarm housing in a positioning manner.

[0008] Preferably, a control panel is embedded in the front of the alarm housing, and the control panel is positioned and connected to the alarm housing.

[0009] Preferably, a particle concentration sensor is provided on the front side of the circuit board, and the particle concentration sensor is electrically connected to the circuit board.

[0010] Preferably, a smoke sensor is provided on the front side of the circuit board, and the top of the smoke sensor is rounded, and the smoke sensor is connected to the circuit board in a positioning manner.

[0011] Preferably, the air outlets are in three groups and are arranged on the side of the alarm housing.

[0012] Preferably, a buzzer is provided inside the alarm housing at a position extending from the bottom of the control panel.

[0013] Beneficial Effects

[0014] In the utility model, a filter element is provided at the bottom of the first air inlet and the second air inlet, so that when in use, the filter element can effectively block dust, impurities and larger particulate matter from entering the circulation pipe, and prevent these substances from interfering with the smoke sensor's detection of smoke, thereby significantly improving the accuracy and reliability of detection. The stable air intake quality helps to maintain the stability of smoke detection, reduce false alarms and missed alarms caused by impurities, and make the performance of the smoke alarm more stable and reliable. At the same time, the stable air intake quality helps to maintain the stability of smoke detection, reduce false alarms and missed alarms caused by impurities, and make the performance of the smoke alarm more stable and reliable.

[0015] In the utility model, a particle concentration sensor and a smoke sensor are provided on one side of the circuit board. The particle concentration sensor can accurately measure the particle content in the air, and work together with the smoke sensor to more comprehensively and accurately detect the presence and concentration changes of smoke. Even in the initial stage when the smoke concentration is low, the particle concentration sensor can detect subtle changes in particles, thereby achieving earlier fire warning. Different types of fires may produce smoke and particles with different characteristics. Equipped with a particle concentration sensor and a smoke sensor at the same time, it can adapt to a wider range of fire scenes, and both smoldering fire and open flame burning can be detected in a timely and effective manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axonometric drawing of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a rear view of the utility model;

[0019] Figure 4 It is a right view of the utility model;

[0020] Figure 5 It is a cross-sectional view of the utility model.

[0021] Legend:

[0022] 1. First air inlet; 2. Second air inlet; 3. Alarm housing; 4. Air outlet; 5. Gas filter; 6. Filter element; 7. Circuit board; 8. Particle concentration sensor; 9. Smoke sensor; 10. Control panel; 11. Positioning hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0024] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment one:

[0026] Reference Figure 1-5 A sealed circulation pipeline of an active smoke alarm comprises an alarm housing 3, a first air inlet 1 is provided on the top of the alarm housing 3, an air outlet 4 is provided on one side of the alarm housing 3, and the air outlet 4 is connected to the alarm housing 3 by positioning, a second air inlet 2 is provided on the top of the alarm housing 3, a gas filter 5 is provided at the bottom of the second air inlet 2, a filter element 6 is provided on one side of the gas filter 5, a circuit board 7 is provided on one side of the alarm housing 3, a particle concentration sensor 8 is provided on the front of the circuit board 7, and the particle concentration sensor 8 is electrically connected to the circuit board 7, a smoke sensor 9 is provided on the front of the circuit board 7, and the top of the smoke sensor 9 is rounded, and the smoke sensor 9 is connected to the circuit board 7 by positioning, a positioning hole 11 is provided on the back of the alarm housing 3, and the air outlet 4 is in three groups, which are arranged on the side of the alarm housing 3, and a buzzer is provided at the extended position at the bottom of the control panel 10 inside the alarm housing 3.

[0027] When in use, the user can control the added particle concentration sensor 8 and smoke sensor 9 through the circuit board 7. The filter element 6 can effectively block dust, impurities and larger particles from entering the circulation pipe, preventing these substances from interfering with the detection of smoke by the smoke sensor 9, thereby significantly improving the accuracy and reliability of detection. The stable air intake quality helps to maintain the stability of smoke detection, reduce false alarms and missed alarms caused by impurities, and make the performance of the smoke alarm more stable and reliable. At the same time, the stable air intake quality helps to maintain the stability of smoke detection, reduce false alarms and missed alarms caused by impurities, and make the performance of the smoke alarm more stable and reliable. The particle concentration sensor 8 can accurately measure the particle content in the air, and work with the smoke sensor 9 to more comprehensively and accurately detect the presence and concentration changes of smoke. Even in the initial stage of low smoke concentration, the particle concentration sensor 8 can detect subtle changes in particles, thereby achieving earlier fire warning. Different types of fires may produce smoke and particles with different characteristics. At the same time, the particle concentration sensor 8 and the smoke sensor 9 can adapt to a wider range of fire scenes, whether it is a smoldering fire or an open flame, it can be detected in a timely and effective manner. Specific embodiment 2:

[0029] Reference Figure 1-5 A circulating fan is provided inside the alarm housing 3, so that when in use, the installed circulating fan can accelerate the flow of smoke inside the alarm, allowing the smoke to reach the sensor position faster, which helps to detect the smoke in time even when the smoke concentration is low, thereby improving the detection sensitivity.

[0030] In summary:

[0031] 1. A filter element 6 is provided at the bottom of the first air inlet 1 and the second air inlet 2, so that the filter element 6 can effectively block dust, impurities and larger particles from entering the circulation pipe when in use, and prevent these substances from interfering with the smoke sensor 9 in detecting smoke, thereby significantly improving the accuracy and reliability of detection. Stable air intake quality helps to maintain the stability of smoke detection, reduce false alarms and missed alarms caused by impurities, and make the performance of the smoke alarm more stable and reliable. At the same time, stable air intake quality helps to maintain the stability of smoke detection, reduce false alarms and missed alarms caused by impurities, and make the performance of the smoke alarm more stable and reliable.

[0032] A particle concentration sensor 8 and a smoke sensor 9 are provided on one side of the circuit board 7, so that the particle concentration sensor 8 can accurately measure the particle content in the air. Working together with the smoke sensor 9, it can more comprehensively and accurately detect the presence and concentration changes of smoke. Even in the initial stage when the smoke concentration is low, the particle concentration sensor 8 can detect subtle changes in particles, thereby achieving earlier fire warning. Different types of fires may produce smoke and particles with different characteristics. Equipped with the particle concentration sensor 8 and the smoke sensor 9 at the same time, it can adapt to a wider range of fire scenes, whether it is a smoldering fire or an open flame, it can be detected in a timely and effective manner.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A sealed circulation pipeline of an active smoke alarm, comprising an alarm housing (3), characterized in that: A first air inlet (1) is provided at the top of the alarm housing (3), a second air inlet (2) is provided at the top of the alarm housing (3), a gas filter (5) is provided at the bottom of the second air inlet (2), a filter element (6) is provided on one side of the gas filter (5), a circuit board (7) is provided on one side of the alarm housing (3), and a positioning hole (11) is provided on the back of the alarm housing (3).

2. The sealed circulation pipeline of the active smoke alarm according to claim 1 is characterized in that: An air outlet (4) is provided on one side of the alarm housing (3), and the air outlet (4) is connected to the alarm housing (3) in a positioning manner.

3. The sealed circulation pipeline of the active smoke alarm according to claim 1 is characterized in that: A control panel (10) is embedded on the front of the alarm housing (3), and the control panel (10) is positioned and connected to the alarm housing (3).

4. The sealed circulation pipeline of the active smoke alarm according to claim 1 is characterized in that: A particle concentration sensor (8) is provided on the front side of the circuit board (7), and the particle concentration sensor (8) is electrically connected to the circuit board (7).

5. The sealed circulation pipeline of the active smoke alarm according to claim 1 is characterized in that: A smoke sensor (9) is provided on the front of the circuit board (7), and the top of the smoke sensor (9) is rounded, and the smoke sensor (9) and the circuit board (7) are connected in a positioning manner.

6. The sealed circulation pipeline of the active smoke alarm according to claim 2 is characterized in that: The air outlets (4) are in three groups and are arranged on the side of the alarm housing (3).

7. The sealed circulation pipeline of the active smoke alarm according to claim 1 is characterized in that: A buzzer is arranged inside the alarm housing (3) at a position extending from the bottom of the control panel (10).

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