A point-type photoelectric smoke detector with multispectral recognition function

Abstract

This utility model relates to the field of fire detector technology, and more particularly to a point-type photoelectric smoke detector with multispectral recognition function. It includes a fire detector body and a mounting bracket. A connecting bracket is fixed to the rear side of the fire detector body by screws. Both the connecting bracket and the mounting bracket are equipped with an adjustment mechanism for adjusting the orientation and height of the fire detector body. This utility model, through the setting of the adjustment mechanism, can flexibly adjust the left-right and front-back orientation of the detector, allowing it to quickly adapt to diverse spatial layouts and monitoring requirements. It can also change the detection height of the detector, effectively avoiding blind spots caused by unreasonable installation positions, achieving a comprehensive and thorough detection of fire hazards, and effectively improving the timeliness and accuracy of fire detection.

Description

Technical Field

[0001] This utility model relates to the field of fire detector technology, and in particular to a point-type photoelectric smoke detector with multispectral recognition function. Background Technology

[0002] Fire detectors can combine multispectral technology with photoelectric smoke detection principles to form composite fire detection devices. Their core lies in improving the ability to accurately capture fire characteristics through multispectral recognition technology, while retaining the sensitivity of photoelectric smoke detectors to smoke particles.

[0003] Currently, existing point-type photoelectric smoke detectors with multispectral recognition capabilities typically perform well in terms of smoke detection accuracy. They can effectively distinguish different types of smoke and reduce false alarm rates by using multispectral recognition technology. However, they cannot flexibly adjust the left-right, front-back orientation, and monitoring height of the detectors, making it difficult to quickly adapt to diverse spatial layouts and monitoring requirements. When facing complex spaces, they are prone to creating monitoring blind spots due to unreasonable installation locations, failing to achieve a comprehensive and thorough capture of fire hazards. This, in turn, affects the timeliness and accuracy of fire detection to some extent. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the inability to flexibly adjust the left-right, front-back orientation, and monitoring height of the detector, thus failing to achieve a comprehensive and thorough fire hazard detection effect. Therefore, this invention proposes a point-type photoelectric smoke detector with multispectral recognition function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A point-type photoelectric smoke detector with multispectral recognition function includes a fire detector body and a mounting bracket, wherein a connecting bracket is fixed to the rear side of the fire detector body by screws. Both the connecting frame and the mounting frame are equipped with adjustment mechanisms, which are used to adjust the orientation and height of the fire detector body.

[0006] More preferably, the adjusting mechanism includes a connecting seat disposed on the inner side of the connecting frame, with locking teeth I fixedly disposed on both sides of the connecting frame, and tooth grooves I opened on both sides of the connecting seat near the locking teeth I, the tooth grooves I and the locking teeth I being positioned opposite each other, and the locking teeth I and the tooth grooves I engaging with each other; a support seat is disposed on the inner side of the mounting frame, with locking teeth II fixedly disposed on both sides of the mounting frame, and tooth grooves II opened on both sides of the support seat near the locking teeth II, the tooth grooves II and the locking teeth II being positioned opposite each other, and the locking teeth II and the tooth grooves II engaging with each other.

[0007] More preferably, the adjusting mechanism further includes a lead screw threaded to the same side of the connecting seat and the support seat, wherein an adjusting block is fixedly provided in the middle section of the lead screw, and locking nuts are threadedly connected to both sides of the lead screw on both sides of the adjusting block.

[0008] More preferably, through bolts are provided between the connecting frame and the connecting seat and the support seat and the mounting frame, and the threaded ends of the two through bolts are threaded with lock nuts.

[0009] More preferably, a washer is fixedly provided on the inner side of both locking nuts, and multiple evenly distributed serrations are provided on the inner side of both washeres.

[0010] More preferably, the surface of the fire detector body is electrically embedded with uniformly distributed visible light sensors, infrared sensors, and ultraviolet sensors.

[0011] This utility model has the following beneficial effects: This invention, through the setting of the adjustment mechanism, can not only flexibly adjust the left and right, front and back orientation of the detector, enabling it to quickly adapt to diverse spatial layouts and monitoring requirements, but also change the monitoring height of the detector, effectively avoiding monitoring blind spots caused by unreasonable installation positions, achieving a comprehensive and thorough fire hazard capture effect, and effectively improving the timeliness and accuracy of fire detection. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall fire detector body of this utility model with the main body facing downwards; Figure 2 This is a schematic diagram of the fire detector body of this utility model facing upwards; Figure 3 This is a schematic diagram of the overall adjusted structure of this utility model; Figure 4 This is a schematic diagram showing the overall disassembly and partial enlargement of the present invention; Figure 5 This is an enlarged view of part A of this utility model.

[0013] In the diagram: 1. Fire detector body; 101. Visible light sensor; 102. Infrared sensor; 103. Ultraviolet sensor; 2. Connecting bracket; 201. Clamping tooth I; 3. Connecting seat; 301. Tooth groove I; 4. Support seat; 401. Tooth groove II; 5. Mounting bracket; 501. Clamping tooth II; 6. Through bolt; 7. Locking nut; 701. Serrated edge; 8. Lead screw; 801. Adjusting block; 9. Locking nut. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] In one embodiment: Reference Figures 1-5 A fire detector includes a fire detector body 1 and a mounting bracket 5, etc. A connecting bracket 2 is fixedly mounted on the rear side of the fire detector body 1 by screws. The adjustment mechanism is the key part of the detector to achieve orientation and height or length adjustment. A connecting seat 3 is provided on the inner side of the connecting bracket 2. Both sides of the connecting bracket 2 are fixedly provided with locking teeth I 201. These locking teeth I 201 are evenly distributed and have a certain tooth angle (e.g., Figure 4 As shown, the connecting seat 3 has grooves I 301 on both sides near the locking tooth I 201. The grooves I 301 and the locking tooth I 201 are positioned opposite each other and mesh with each other. Through this meshing structure, the connecting frame 2 and the connecting seat 3 can be adjusted and fixed at a certain angle. The mounting frame 5 has a support seat 4 on its inner side. The mounting frame 5 has locking teeth II 501 fixed on both sides. The support seat 4 has grooves II 401 on both sides near the locking teeth II 501. The grooves II 401 and the locking teeth II 501 are positioned opposite each other and mesh with each other, thereby realizing the angle adjustment and fixing between the mounting frame 5 and the support seat 4.

[0016] The adjustment mechanism also includes a lead screw 8 threadedly connected to the connecting seat 3 and the support seat 4 on the same side. An adjustment block 801 is fixedly installed in the middle section of the lead screw 8. The shape of the adjustment block 801 is easy for the operator to hold or rotate and adjust using tools. Locking nuts 9 are threadedly connected to both sides of the lead screw 8 on the outside of the adjustment block 801. By rotating the locking nuts 9, the relative position of the lead screw 8 with the connecting seat 3 and the support seat 4 can be fixed, thereby locking the adjustment state of the detector.

[0017] Through bolts 6 are installed between the connecting frame 2 and the connecting seat 3 and the support seat 4 and the mounting frame 5. The threaded ends of the two through bolts 6 are threaded with locking nuts 7. Washers are fixedly installed on the inner side of the two locking nuts 7, and multiple evenly distributed serrations 701 are opened on the inner side of the washers on both sides. When the locking nuts 7 are tightened, the two serrations 701 can form a mechanical engagement with one side surface of the connecting frame 2 and the mounting frame 5 respectively. This mechanical engagement structure can provide a more reliable locking force and prevent the detector from loosening due to vibration or other reasons during use.

[0018] In another embodiment: Reference Figure 2A point-type photoelectric smoke detector with multispectral recognition function is disclosed. The surface of the fire detector body 1 is electrically connected to and embedded with uniformly distributed visible light sensors 101 (model: GVGR-T10GD, using indium gallium nitride PN type photodiode, photovoltaic mode operation, with high response and low dark current characteristics), infrared sensors 102 (model: LHI878, a pyroelectric infrared sensor, capable of detecting infrared rays emitted by the human body or other objects and outputting electrical signals), and ultraviolet sensors 103 (model: GUVA-S12SD, a Schottky type photodiode, suitable for photoelectric mode, no wavelength filter required, with large angle, low dark current, and wide detection range). These sensors are closely arranged on the surface of the fire detector body 1, and can collect visible light, infrared and ultraviolet information in the surrounding environment in real time. By comprehensively analyzing the data collected by these sensors through multispectral recognition technology, it is possible to more accurately determine whether a fire has occurred, thereby improving the reliability and timeliness of fire detection.

[0019] This application can be used in the field of point-type photoelectric smoke detectors with multispectral recognition function, and can also be used in other fields applicable to this application.

[0020] The usage process and working principle of this utility model technical solution are as follows: First, in the assembly stage, lock nuts 9 are threaded onto both sides of the adjusting block 801 outside the lead screw 8. Then, the lead screw 8 is threaded onto the side of the connecting seat 3 and the support seat 4 that are close to each other. Next, the connecting seat 3 is placed inside the connecting frame 2, so that the teeth I 201 on both sides of the connecting frame 2 engage with the tooth grooves I 301 on both sides of the connecting seat 3. At the same time, the support seat 4 is placed inside the mounting frame 5, so that the teeth II 501 on both sides of the mounting frame 5 engage with the tooth grooves II 401 on both sides of the support seat 4. Then, through bolts 6 are passed through the connecting frame 2 and the connecting seat 3, as well as the support seat 4 and the mounting frame 5. Lock nuts 7 are threaded onto the threaded ends of the two through bolts 6 for locking. At this time, the washers inside the two lock nuts 7 will form a mechanical engagement with one side surface of the connecting frame 2 and the mounting frame 5 through the sawtooth pattern 701. Then, the rear side of the fire detector body 1 is fixed to the connecting frame 2 with screws. Finally, the assembled whole is installed in the pre-selected appropriate position through the mounting frame 5. If the detector needs to be adjusted to the left or right orientation, first locate the locking nut 7 associated with the support base 4 and the mounting bracket 5, loosen it to release the mechanical engagement on this side, and then rotate the support base 4 to adjust it to the appropriate left or right orientation position according to actual needs. (During this process, the locking tooth II 501 remains fixed on the mounting bracket 5. When the support base 4 is subjected to external force and begins to rotate, the tooth grooves II 401 on both sides will rotate around the axis of rotation (through bolt 6). The locking tooth II 501 will slide relative to each other and engage step by step within the tooth grooves II 401. The locking tooth II 501 slides from one tooth groove II 401 to the adjacent tooth groove II 401 and engages, repeating this process to allow the support base 4 to rotate smoothly.) After adjustment, tighten the locking nut 7 to make the serrated pattern 701 re-engage with the surface of one side of the mounting bracket 5. At the same time, the locking tooth II 501 also engages with the tooth groove II 401, achieving double fixation of the position and completing the adjustment of the left or right orientation. When it is necessary to adjust the front and back orientation of the detector, locate the locking nut 7 associated with the connecting frame 2 and the connecting seat 3, and loosen it. At this time, the fire detector body 1 can be rotated, and the connecting frame 2 will drive the connecting seat 3 to rotate (during this process, the position of the tooth groove I 301 on the connecting seat 3 remains unchanged. When the fire detector body 1 is subjected to external force and begins to rotate, the locking teeth I 201 on both sides of the connecting frame 2 will move in a circular motion around the rotation axis (through bolt 6). The locking teeth I 201 will slide relative to each other and lock in the tooth groove I 301. The locking teeth I 201 slide from one tooth groove I 301 to the adjacent tooth groove I 301 and lock in. This is repeated so that the fire detector body 1 and the connecting frame 2 on it can rotate smoothly). This will adjust to the appropriate front and back orientation. After the adjustment is completed, tighten the locking nut 7 so that the sawtooth pattern 701 re-engages with the surface of one side of the connecting frame 2. At the same time, the locking teeth I 201 also engage with the tooth groove I 301 to achieve double fixation of position and fixation of front and back orientation. To adjust the height or length, hold the fire detector body 1 and directly rotate the adjusting block 801. Since the adjusting block 801 is fixed in the middle section of the lead screw 8, rotating the adjusting block 801 will drive the lead screw 8 to rotate, thereby causing the lead screw 8 to move relative to the connecting seat 3 and the support seat 4, thus achieving the adjustment of the height or length. After adjusting to the appropriate position, tighten the locking nuts 9 on both sides of the lead screw 8 so that the two locking nuts 9 abut against the side of the connecting seat 3 and the support seat 4 that are close to each other, ensuring that the height or length is fixed. Through the above operations, the detector can be adjusted in different directions and heights, so that it can play a better role.

[0021] However, as is well known to those skilled in the art, the working principles and wiring methods of the fire detector body 1, the visible light sensor 101, the infrared sensor 102 and the ultraviolet sensor 103 are all conventional methods or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0022] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A point-type photoelectric smoke detector with multispectral recognition function, characterized in that, It includes a fire detector body (1) and a mounting bracket (5), and a connecting bracket (2) is fixed to the rear side of the fire detector body (1) by screws. Both the connecting frame (2) and the mounting frame (5) are equipped with adjustment mechanisms, which are used to adjust the orientation and height of the fire detector body (1); The adjustment mechanism includes a connecting seat (3) disposed inside the connecting frame (2). Both sides of the connecting frame (2) are fixedly provided with a locking tooth I (201). Both sides of the connecting seat (3) near the locking tooth I (201) are provided with a tooth groove I (301). The tooth groove I (301) corresponds to the locking tooth I (201) in position, and the locking tooth I (201) meshes with the tooth groove I (301). The inner side of the mounting frame (5) is provided with a support seat (4). Both sides of the mounting frame (5) are fixedly provided with a locking tooth II (501). Both sides of the support seat (4) near the locking tooth II (501) are provided with a tooth groove II (401). The tooth groove II (401) corresponds to the locking tooth II (501) in position, and the locking tooth II (501) meshes with the tooth groove II (401).

2. A point-type photoelectric smoke detector with multispectral recognition function according to claim 1, characterized in that, The adjustment mechanism also includes the same lead screw (8) threaded to the connecting seat (3) and the support seat (4) on the same side. An adjustment block (801) is fixedly provided in the middle section of the lead screw (8), and locking nuts (9) are threaded to both sides of the lead screw (8) located on the adjustment block (801).

3. A point-type photoelectric smoke detector with multispectral recognition function according to claim 1, characterized in that, The connecting frame (2) and connecting seat (3) are all connected to the support seat (4) and mounting frame (5) by through bolts (6), and the threaded ends of the two through bolts (6) are threaded with locking nuts (7).

4. A point-type photoelectric smoke detector with multispectral recognition function according to claim 3, characterized in that, Both locking nuts (7) have washers fixedly installed on their inner sides, and the inner sides of both washers are provided with a plurality of evenly distributed serrations (701).

5. A point-type photoelectric smoke detector with multispectral recognition function according to claim 1, characterized in that, The surface of the fire detector body (1) is electrically embedded with a uniformly distributed visible light sensor (101), infrared sensor (102) and ultraviolet sensor (103).

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