A smoke and temperature sensing fire detector for fire alarms

Abstract

This utility model provides a smoke and temperature sensing fire detector for fire alarms, including a housing and an alarm. An alarm component is fixedly connected inside the housing, and an adjustment component is fixedly connected to the bottom of the alarm component. The alarm component includes a support, the outer side of which is fixedly connected to the housing. A fixed ring is fixedly connected inside the support, one end of which is fixedly connected to a deformation spring. A connecting seat is fixedly connected to the end of the fixed ring away from the deformation spring. A rocker plate is fixedly connected inside the connecting seat, and a rotating shaft is rotatably connected to the end of the rocker plate away from the connecting seat. This design allows the alarm to be triggered by the deformation of the deformation spring when a fire occurs. Even when the external power is cut off, the alarm can still operate normally. Furthermore, the sensitivity of the alarm can be adjusted according to different environments and needs, avoiding false alarms while ensuring timely response to real threats.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment, and in particular to a smoke and temperature sensing fire detector for fire alarm. Background Technology

[0002] Fire detectors are primarily used to monitor for and trigger alarms when a fire occurs. Smoke detectors, as one of the most commonly used fire alarm devices, function by detecting the concentration of smoke in the air. Once smoke particles reach a certain threshold, the alarm system is triggered, thus buying valuable time for evacuation and fire control. However, in practical applications, if a power failure or smoke detector malfunction occurs, subsequent alarm signals cannot be issued. Therefore, it is necessary to provide a new fire alarm detection device to solve the aforementioned technical problems. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model can realize the function of physical temperature sensing and triggering alarm through flue gas temperature, which greatly improves the application scenarios and working stability of fire detectors.

[0004] The smoke and temperature sensing fire detector for fire alarm provided by this utility model includes a housing and an alarm. An alarm component is fixedly connected inside the housing, and an adjustment component is fixedly connected to the bottom of the alarm component. The alarm assembly includes a support, the outer side of which is fixedly connected to the housing, a fixed ring is fixedly connected inside the support, a deformation spring is fixedly connected to one end of the fixed ring, a connecting seat is fixedly connected to the end of the fixed ring away from the deformation spring, a rocker is fixedly connected inside the connecting seat, a rotating shaft is rotatably connected to the end of the rocker away from the connecting seat, and a pressure plate is rotatably connected to the end of the rotating shaft away from the rocker.

[0005] Preferably, the adjusting assembly includes a connecting column, the outer side of which is fixedly connected to a fixed ring, an outer column slidably connected to the outer side of the connecting column, an inner column fixedly connected to the bottom end of the connecting column, an adjusting column slidably connected to the inner column, an adjusting disc fixedly connected to the bottom end of the outer column, an adjusting threaded rod threadedly connected to the inside of the adjusting disc, and a support ring rotatably connected to the outer side of the adjusting threaded rod.

[0006] Preferably, the end of the variable spring furthest from the fixed coil is fixedly connected to the adjusting plate.

[0007] Preferably, the bottom end of the adjusting column is fixedly connected to the support ring.

[0008] Preferably, the outer side of the adjustment disc is slidably connected to the inside of the housing.

[0009] Preferably, the outer side of the support ring is fixedly connected to the inside of the housing.

[0010] Preferably, the outer side of the inner column is slidably connected to the inside of the outer column.

[0011] Compared with related technologies, the smoke and temperature sensing fire detector for fire alarms provided by this utility model has the following beneficial effects: 1. This application utilizes a built-in deformation spring that expands upon heating. This expansion is transmitted to the connecting seat via a fixed coil. The expansion of the deformation spring causes the rocker to rotate around the pivot, which in turn causes the pressure plate to shift. Ultimately, the shifted pressure plate contacts the detection range of the alarm, triggering the alarm. This design allows the alarm to be triggered by the deformation spring during a fire, ensuring the normal operation of the smoke detector even in scenarios without a stable power supply, and is not limited by the power supply. 2. When it is necessary to adjust the pressure of the deformation spring, the adjusting disc is rotated, which drives the adjusting threaded rod to rotate. Due to the threaded connection between the adjusting disc and the adjusting threaded rod, this rotational motion is converted into linear motion, pushing the adjusting disc to slide along the inside of the housing. As the adjusting disc moves, the deformation spring is stretched or relaxed, thereby changing its pressure on the rocker. This pressure change is adjusted to the trigger threshold of the alarm component. The sensitivity of the alarm can be adjusted according to different environments and needs, avoiding false alarms while ensuring timely response to real threats. Attached Figure Description

[0012] Figure 1 A schematic diagram of a preferred embodiment of the smoke and temperature sensing fire detector for fire alarm provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the alarm component. Figure 3 for Figure 2 The diagram shows the structure of the adjustment component. Figure 4 for Figure 1 The diagram shows a three-dimensional view of the suspension assembly. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Please refer to the following: Figures 1 to 4 The detector includes a housing 1 and an alarm 4. An alarm component 2 is fixedly connected inside the housing 1, and an adjustment component 3 is fixedly connected to the bottom of the alarm component 2.

[0015] In the specific implementation process, such as Figure 1 and Figure 2As shown, the alarm assembly 2 includes a support 21, the outer side of which is fixedly connected to the housing 1. A retaining ring 22 is fixedly connected inside the support 21. A deformation spring 23 is fixedly connected to one end of the retaining ring 22. A connecting seat 24 is fixedly connected to the end of the retaining ring 22 away from the deformation spring 23. A rocker plate 25 is fixedly connected inside the connecting seat 24. A rotating shaft 26 is rotatably connected to the end of the rocker plate 25 away from the connecting seat 24. A pressure plate 27 is rotatably connected to the end of the rotating shaft 26 away from the rocker plate 25.

[0016] It should be noted that: Support 21, as a basic component, is fixedly connected to the outer side of the housing 1, ensuring the stability and fixation of the entire assembly. Inside support 21, fixing ring 22 is fixedly connected, serving as support and positioning. One end of fixing ring 22 is connected to deformation spring 23, which is made of copper-based shape memory alloy. This material can produce significant shape changes when the temperature changes, thereby providing a power source. In a fire, when the ambient temperature rises, high-temperature smoke will rise to the ceiling through convection, and then flow along the ceiling water... The temperature of the entire room rises due to the diffusion of heat, which causes the deformation spring 23 to expand. Its deformation is transmitted to the connecting seat 24 through the fixed coil 22. A rocker 25 is fixedly connected inside the connecting seat 24. The end of the rocker 25 away from the connecting seat 24 is rotatably connected to the rotating shaft 26. The end of the rotating shaft 26 away from the rocker 25 is rotatably connected to the pressure plate 27. When the deformation spring 23 expands due to the increase in temperature, the force it generates will push the rocker 25 to rotate around the rotating shaft 26, thereby causing the pressure plate 27 to shift. Finally, in conjunction with the alarm 4, the alarm mechanism is triggered.

[0017] refer to Figure 2 and Figure 4 As shown, the adjusting assembly 3 includes a connecting post 31, the outer side of which is fixedly connected to the fixed ring 22, an outer post 32 slidably connected to the outer side of the connecting post 31, an inner post 33 fixedly connected to the bottom end of the connecting post 31, an outer side of the inner post 33 slidably connected to the inside of the outer post 32, an adjusting post 34 slidably connected to the inside of the inner post 33, an adjusting disc 35 fixedly connected to the bottom end of the outer post 32, an outer side of the adjusting disc 35 slidably connected to the inside of the housing 1, a variable spring 23 with one end away from the fixed ring 22 fixedly connected to the adjusting disc 35, an adjusting threaded rod 36 threadedly connected to the inside of the adjusting disc 35, a support ring 37 rotatably connected to the outer side of the adjusting threaded rod 36, a bottom end of the adjusting post 34 fixedly connected to the support ring 37, and an outer side of the support ring 37 fixedly connected to the inside of the housing 1.

[0018] It should be noted that: the connecting column 31 acts as a bridge between the inner and outer structures, ensuring a stable connection between the adjusting component 3 and the alarm component 2. The outer column 32 slides along the outside of the connecting column 31, providing an external sliding track for the inner column 33, while the inner column 33 slides freely inside the outer column 32. This double-layer sliding design allows for more precise position adjustments. The adjusting column 34 can slide within the inner column 33 as needed to fine-tune the initial position of the deformation spring 23. The adjusting disc 35 serves as the operating interface, with its outer side slidingly connected to the inside of the housing 1, allowing the user to drive the device by rotating the adjusting disc 35. Throughout the adjustment process, the end of the deformation spring 23 furthest from the fixed ring 22 is fixed to the adjusting disc 35, ensuring that the movement of the adjusting disc 35 directly changes the preload of the deformation spring 23. The adjusting threaded rod 36 is the power source of the adjusting assembly 3. By rotating the adjusting threaded rod 36, the position of the adjusting disc 35 can be controlled, thereby adjusting the tension of the deformation spring 23. The support ring 37 serves as the support point for the adjusting threaded rod 36, ensuring stability and accuracy during the adjustment process. The support ring 37 is fixed inside the housing 1, forming a stable base and ensuring the overall stability of the adjusting assembly 3.

[0019] The working principle of the smoke and temperature sensing fire detector for fire alarm provided by this utility model is as follows: When the ambient temperature rises, the deformation spring 23 expands due to heat. Its deformation is transmitted to the connecting seat 24 via the fixed coil 22. A rocker plate 25 is fixedly connected inside the connecting seat 24. The expansion of the deformation spring 23 causes the rocker plate 25 to rotate around the rotating shaft 26. The end of the rotating shaft 26 furthest from the rocker plate 25 is connected to the pressure plate 27. Therefore, the rotation of the rocker plate 25 causes the pressure plate 27 to shift. Eventually, the pressure plate 27 contacts the detection range of the alarm 4, triggering the alarm mechanism and achieving an automatic alarm effect when the temperature rises. When it is necessary to adjust the deformation spring 23... When pressure is applied to the 3rd stage, rotating the adjusting disc 35 causes the adjusting threaded rod 36 to rotate. Due to the threaded connection between the adjusting disc 35 and the adjusting threaded rod 36, this rotational motion is converted into linear motion, pushing the adjusting disc 35 to slide along the inside of the housing 1. As the adjusting disc 35 moves, the deformation spring 23 is stretched or relaxed, thereby changing its pressure on the rocker arm 25. This pressure change directly affects the trigger threshold of the alarm component 2, allowing the system to adjust its sensitivity according to actual needs, thus avoiding false alarms and ensuring timely response to danger. The corresponding alarm 4 is powered by an embedded high-energy battery.

[0020] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0021] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, 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 smoke and temperature sensing fire detector for fire alarm, comprising a housing (1) and an alarm (4), characterized in that: An alarm component (2) is fixedly connected inside the housing (1), and an adjustment component (3) is fixedly connected to the bottom of the alarm component (2). The alarm assembly (2) includes a support (21), the outer side of which is fixedly connected to the housing (1). A fixed ring (22) is fixedly connected inside the support (21). A deformation spring (23) is fixedly connected to one end of the fixed ring (22). A connecting seat (24) is fixedly connected to the end of the fixed ring (22) away from the deformation spring (23). A rocker plate (25) is fixedly connected inside the connecting seat (24). A rotating shaft (26) is rotatably connected to the end of the rocker plate (25) away from the connecting seat (24). A pressure plate (27) is rotatably connected to the end of the rotating shaft (26) away from the rocker plate (25).

2. The smoke and temperature sensing fire detector for fire alarms according to claim 1, characterized in that, The adjusting assembly (3) includes a connecting column (31), the outer side of which is fixedly connected to a fixed ring (22), an outer column (32) is slidably connected to the outer side of the connecting column (31), an inner column (33) is fixedly connected to the bottom end of the connecting column (31), an adjusting column (34) is slidably connected to the inside of the inner column (33), an adjusting disc (35) is fixedly connected to the bottom end of the outer column (32), an adjusting threaded rod (36) is threadedly connected to the inside of the adjusting disc (35), and a support ring (37) is rotatably connected to the outer side of the adjusting threaded rod (36).

3. The smoke and temperature sensing fire detector for fire alarms according to claim 2, characterized in that, The end of the variable spring (23) away from the fixed coil (22) is fixedly connected to the adjusting plate (35).

4. The smoke and temperature sensing fire detector for fire alarms according to claim 2, characterized in that, The bottom end of the adjusting column (34) is fixedly connected to the support ring (37).

5. The smoke and temperature sensing fire detector for fire alarms according to claim 2, characterized in that, The outer side of the adjustment disc (35) is slidably connected to the inside of the housing (1).

6. The smoke and temperature sensing fire detector for fire alarms according to claim 2, characterized in that, The outer side of the support ring (37) is fixedly connected to the inside of the housing (1).

7. The smoke and temperature sensing fire detector for fire alarms according to claim 2, characterized in that, The outer side of the inner column (33) is slidably connected to the inside of the outer column (32).

Images