A composite detector for outdoor fires

By incorporating a filter and limiting rod structure into the field fire detector, the problems of weak protection and inflexible installation are solved. This enables the filtering of dust and flying insects, ensuring detection accuracy and position adjustment, and adapting to diverse installation environments.

CN224437007UActive Publication Date: 2026-06-30MONITORING BRANCH OF HEILONGJIANG COMMUNICATIONS EXPRESSWAY OPERATION & MANAGEMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MONITORING BRANCH OF HEILONGJIANG COMMUNICATIONS EXPRESSWAY OPERATION & MANAGEMENT CO LTD
Filing Date
2025-05-23
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing field fire detectors have weak protection capabilities in harsh environments, are inflexible in installation, and affect detection accuracy and adaptability.

Method used

A composite detector for outdoor fires was designed, which uses a filter screen installed inside the mounting frame to filter dust and flying insects. The mounting plate can be flexibly adjusted through a tension spring and a limiting rod structure, and the stability of the filter screen is enhanced by magnetic adsorption.

Benefits of technology

It effectively filters dust and flying insects, ensuring detection accuracy, and can flexibly adjust the installation position to adapt to diverse installation scenarios, improving equipment stability and adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a composite detector for outdoor fires, relating to the field of fire detection technology. It includes a composite detector body with ventilation holes on both sides and a mounting plate on one side. The mounting plate has mounting holes on its surface, and a sliding block is fixedly connected to the side of the mounting plate. A sliding groove is also provided on the side of the composite detector body. This utility model effectively filters dust and flying insects through a filter screen installed inside the mounting frame, preventing them from entering the detector through the ventilation holes and affecting detection accuracy and normal operation. Simultaneously, pulling the pull head causes a limiting rod to slide within the fixed plate, disengaging the limiting rod from the limiting hole, thus allowing flexible adjustment of the mounting plate position to adapt to different installation environments. After adjustment, releasing the pull head causes a tension spring to push the limiting rod into the limiting hole, stably fixing the mounting plate.
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Description

Technical Field

[0001] This utility model relates to the field of fire detection technology, and in particular to a composite detector for outdoor fires. Background Technology

[0002] Fire detection is a crucial link in preventing and controlling fires. Its role is to detect fire signs in a timely manner, buying valuable time for firefighting and evacuation. In the field, fire detection faces numerous challenges. The field is vast, with complex terrain, variable climate conditions, and abundant vegetation cover. Once a fire breaks out, it can spread rapidly, easily causing large-scale disasters.

[0003] In existing technologies, most detectors have simple structural designs and lack the ability to protect against harsh outdoor environments. For example, foreign objects such as dust and flying insects can easily enter the detector through its ventilation holes, adhere to the detection elements, affect detection accuracy, and even cause equipment failure. On the other hand, the installation method is not flexible enough and cannot adapt to diverse outdoor installation scenarios. It is impossible to adjust the position of the detector according to the actual terrain and monitoring needs, which limits the detection range and effect, thus requiring improvement. Utility Model Content

[0004] The purpose of this invention is to solve the problems of weak protection capability and inflexible installation of existing field fire detectors, and to propose a composite field fire detector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a composite detector for outdoor fires, comprising a composite detector body, ventilation holes on both sides of the composite detector body, a mounting plate on the side of the composite detector body, mounting holes on the surface of the mounting plate, a sliding block fixedly connected to the side of the mounting plate, a sliding groove on the side of the composite detector body, a fixing plate fixedly mounted on the surface of the mounting plate, a limit rod slidably connected inside the fixing plate, a limit hole on the side of the composite detector body, a limit disc fixedly mounted on the surface of the limit rod, a tension spring sleeved on the surface of the limit rod, a pull head fixedly mounted at one end of the limit rod, and a mounting frame fixedly mounted on the side of the composite detector body, with a filter screen on the inner side of the mounting frame.

[0006] Preferably, the sliding block and the sliding groove are slidably connected.

[0007] Preferably, the limiting rod and the limiting hole are slidably connected.

[0008] Preferably, one end of the tension spring is fixedly connected to the side of the fixing plate, and the other end of the tension spring is fixedly connected to the side of the limiting plate.

[0009] Preferably, a raised strip is fixedly connected to the side of the filter screen, a raised groove is formed on the surface of the mounting frame, a magnet A is fixedly connected to the lower surface of the raised strip, and a magnet B is fixedly installed on the inner side of the mounting frame.

[0010] Preferably, the convex strip and the convex groove are slidably connected, and the magnet A and the magnet B are attracted to each other.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the filter screen set inside the mounting frame can effectively filter dust and flying insects, preventing them from entering the detector through the vent and affecting the detection accuracy and normal operation of the equipment. At the same time, pulling the pull head causes the limiting rod to slide inside the fixed plate, so that the limiting rod disengages from the limiting hole, thereby flexibly adjusting the position of the mounting plate to adapt to different installation environments. After adjustment, the pull head is released, and the tension spring pushes the limiting rod into the limiting hole to stably fix the mounting plate.

[0013] 2. In this utility model, the convex strip on the side of the filter screen is slidably connected to the convex groove on the surface of the mounting frame, which facilitates the installation and disassembly of the filter screen. Furthermore, the magnet A on the lower surface of the convex strip and the magnet B on the inner side of the mounting frame attract each other, which enhances the stability of the filter screen installation and ensures that the filter screen will not easily loosen or fall off during the filtration process. When the filter screen needs to be cleaned or replaced, it is only necessary to overcome the magnetic force and pull the filter screen out along the convex groove. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a composite detector for field fires is provided for this utility model;

[0015] Figure 2 An exploded view of the mounting plate of a composite detector for field fires is provided for this utility model.

[0016] Figure 3 An exploded view of the filter and magnet B of a composite detector for outdoor fires is provided for this utility model.

[0017] Figure 4 This utility model proposes a composite detector for outdoor fires. Figure 2 Enlarged view of point A in the middle.

[0018] Legend: 1. Composite detector body; 2. Vent hole; 3. Mounting plate; 4. Mounting hole; 5. Sliding block; 6. Slide groove; 7. Fixing plate; 8. Limiting rod; 9. Limiting hole; 10. Limiting plate; 11. Tension spring; 12. Pull head; 13. Mounting frame; 14. Filter screen; 15. Raised strip; 16. Raised groove; 17. Magnet A; 18. Magnet B. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: a composite detector for outdoor fires, including a composite detector body 1, ventilation holes 2 on both sides of the composite detector body 1, a mounting plate 3 on the side of the composite detector body 1, mounting holes 4 on the surface of the mounting plate 3, a sliding block 5 fixedly connected to the side of the mounting plate 3, a sliding groove 6 on the side of the composite detector body 1, a fixing plate 7 fixedly mounted on the surface of the mounting plate 3, a limiting rod 8 slidably connected inside the fixing plate 7, a limiting hole 9 on the side of the composite detector body 1, a limiting plate 10 fixedly mounted on the surface of the limiting rod 8, a tension spring 11 sleeved on the surface of the limiting rod 8, a pull head 12 fixedly mounted on one end of the limiting rod 8, a mounting frame 13 fixedly mounted on the side of the composite detector body 1, a filter screen 14 on the inner side of the mounting frame 13, a sliding block 5 slidably connected to the sliding groove 6, a sliding connection between the limiting rod 8 and the limiting hole 9, one end of the tension spring 11 fixedly connected to the side of the fixing plate 7, and the other end of the tension spring 11 fixedly connected to the side of the limiting plate 10.

[0022] In this embodiment, the filter 14 provided inside the mounting frame 13 can effectively filter dust and flying insects, preventing them from entering the detector through the vent 2 and affecting the detection accuracy and normal operation of the equipment. At the same time, pulling the pull head 12 causes the limiting rod 8 to slide within the fixed plate 7, so that the limiting rod 8 disengages from the limiting hole 9, thereby flexibly adjusting the position of the mounting plate 3 to adapt to different installation environments. After adjustment, the pull head 12 is released, and the tension spring 11 pushes the limiting rod 8 into the limiting hole 9, thus stably fixing the mounting plate 3.

[0023] Example 2: As Figures 1-4 As shown, a protruding strip 15 is fixedly connected to the side of the filter screen 14, a groove 16 is opened on the surface of the mounting frame 13, a magnet A17 is fixedly connected to the lower surface of the protruding strip 15, a magnet B18 is fixedly installed on the inner side of the mounting frame 13, the protruding strip 15 and the groove 16 are slidably connected, and the magnet A17 and the magnet B18 are attracted to each other.

[0024] In this embodiment, the filter screen 14 is slidably connected to the convex strip 15 on the side of the filter screen 14 and the convex groove 16 on the surface of the mounting frame 13, which facilitates the installation and removal of the filter screen 14. The magnet A17 on the lower surface of the convex strip 15 and the magnet B18 on the inner side of the mounting frame 13 attract each other, which enhances the stability of the filter screen 14 installation and ensures that the filter screen 14 will not easily loosen or fall off during the filtration process. When the filter screen 14 needs to be cleaned or replaced, it can be pulled out along the convex groove 16 simply by overcoming the magnetic force.

[0025] The working principle of this embodiment is as follows: When installing the outdoor fire composite detector, firstly, the detector is fixed in a suitable position using the mounting holes 4 on the surface of the mounting plate 3. The sliding block 5 on the side of the mounting plate 3 is slidably connected to the sliding groove 6 on the side of the composite detector body 1. If the position of the detector needs to be adjusted, first pull the pull head 12 so that the limiting rod 8 overcomes the resistance of the tension spring 11 and slides in the fixing plate 7, disengaging from the limiting hole 9 on the side of the composite detector body 1. At this time, the mounting plate 3 can be moved along the sliding groove 6. After adjusting the position, release the pull head 12, and the tension spring 11 pushes the limiting rod 8 to re-insert into the limiting hole 9, thus stabilizing the mounting plate 3. When installing the filter screen 14, align the protrusion 15 on the side of the filter screen 14 with the protrusion 16 on the surface of the mounting frame 13. Since the protrusion 15 and the protrusion 16 are slidably connected, the filter screen 14 is smoothly pushed into the inner side of the mounting frame 13 along the protrusion 16. During the insertion process, the magnet A17 on the lower surface of the protrusion 15 gradually approaches the magnet B18 inside the mounting frame 13. When the two approach a certain distance, they attract each other, completing the installation of the filter screen 14 and enhancing the stability of the filter screen 14 in the process of filtering dust, flying insects and other impurities. When the filter screen 14 needs to be cleaned or replaced after a period of use, hold the filter screen 14 and apply force to overcome the attraction between the magnet A17 and the magnet B18. At the same time, use the sliding characteristics of the protrusion 15 and the groove 16 to pull the filter screen 14 out along the groove 16 to complete the disassembly, cleaning or replacing the new filter screen 14.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A composite detector for outdoor fires, comprising a composite detector body (1), characterized in that: The composite detector body (1) has ventilation holes (2) on both sides, a mounting plate (3) on the side of the composite detector body (1), a mounting hole (4) on the surface of the mounting plate (3), a sliding block (5) fixedly connected to the side of the mounting plate (3), a sliding groove (6) on the side of the composite detector body (1), a fixing plate (7) fixedly installed on the surface of the mounting plate (3), a limiting rod (8) slidably connected inside the fixing plate (7), a limiting hole (9) on the side of the composite detector body (1), a limiting plate (10) fixedly installed on the surface of the limiting rod (8), a tension spring (11) sleeved on the surface of the limiting rod (8), a pull head (12) fixedly installed at one end of the limiting rod (8), a mounting frame (13) fixedly installed on the side of the composite detector body (1), and a filter screen (14) on the inner side of the mounting frame (13).

2. The composite detector for field fires according to claim 1, characterized in that: The sliding block (5) is slidably connected to the sliding groove (6).

3. The composite detector for field fires according to claim 1, characterized in that: The limiting rod (8) is slidably connected to the limiting hole (9).

4. The composite detector for outdoor fires according to claim 1, characterized in that: One end of the tension spring (11) is fixedly connected to the side of the fixing plate (7), and the other end of the tension spring (11) is fixedly connected to the side of the limiting plate (10).

5. The composite detector for outdoor fires according to claim 1, characterized in that: The side of the filter (14) is fixedly connected with a protrusion (15), the surface of the mounting frame (13) is provided with a protrusion (16), the lower surface of the protrusion (15) is fixedly connected with a magnet A (17), and the inner side of the mounting frame (13) is fixedly installed with a magnet B (18).

6. The composite detector for field fires according to claim 5, characterized in that: The convex strip (15) and the convex groove (16) are slidably connected, and the magnet A (17) and the magnet B (18) are attracted to each other.