A smoke detection device

By installing a protective frame and net on the smoke sensing device, the problems of easy damage to the device and short circuits caused by mosquitoes are solved, resulting in higher equipment reliability and service life.

CN224457456UActive Publication Date: 2026-07-03NINGDE SMART CLOUD EMERGENCY SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGDE SMART CLOUD EMERGENCY SERVICE CO LTD
Filing Date
2025-08-30
Publication Date
2026-07-03

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Abstract

This utility model relates to the technical field of smoke sensing equipment, specifically disclosing a smoke sensing device, including a sensor. The sensor contains several pre-set sensors. A support box is fixedly connected to the top of the sensor. The support box has a circular structure, and four sets of connecting bolts are fixedly connected to its outer wall. A connecting rod is fixedly connected to the middle of the support box. Two sets of connecting holes are pre-set on both sides of the top of the connecting rod, allowing it to connect with the ceiling through these holes. A protective component is fixedly connected to the outside of the sensor, with an insect-proof structure in the middle. A protective assembly consisting of a top plate and a protective frame is located outside the sensor. Several circumferentially arranged columns and protective rods are positioned between the top plate and the protective frame, providing protection for the outside of the sensor. This effectively improves the sensor's protective performance and prevents damage from falls from heights.
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Description

Technical Field

[0001] This utility model relates to the field of flue gas sensing equipment technology, and in particular to a flue gas sensing device. Background Technology

[0002] A smoke detector is a fire-fighting device that monitors the concentration of smoke in the environment to warn of fires. Its core function is to promptly capture smoke signals generated in the early stages of a fire and trigger an alarm or link with the fire-fighting system, thus buying critical time for personnel evacuation and fire fighting.

[0003] Currently, existing flue gas sensing devices on the market still have the following shortcomings in actual use: When there are no protective components on the outside of the sensor, the sensor may fall from a height due to the mistakes of the operators during the installation process (most sensors are installed on the ceiling), which will directly affect the internal components of the sensor and cause damage. In addition, during summer use, flying insects can enter the inside of the sensor through the detection channel. When insects come into contact with the electrodes, it will cause "electrode short circuit" and directly burn out the ionization chamber, causing the sensor to be scrapped.

[0004] Therefore, we propose a flue gas sensing device. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] This utility model provides a smoke sensing device that can solve the problem of insufficient protection of the sensor itself. The specific solution is as follows:

[0007] A smoke sensing device includes a sensor with several sensors pre-installed inside. A support box is fixedly connected to the top of the sensor. The support box has a circular structure, and four sets of connecting bolts are fixedly connected to the outer wall of the support box. A docking rod is fixedly connected to the middle of the support box. Two sets of docking holes are pre-installed on both sides of the top of the docking rod, and the docking rod docks with the ceiling through the docking holes. A protective component is fixedly connected to the outside of the sensor, and an insect-proof structure is provided in the middle of the protective component.

[0008] As a preferred embodiment of this utility model, the protective component includes a protective frame and a top plate, with several sets of columns arranged circumferentially between the protective frame and the top plate, a protective rod sleeved in the middle of the columns, and the inner wall of the top plate and the end of the connecting bolt fixed to each other.

[0009] As a preferred technical solution of this utility model, the insect-proof structure includes a protective net, which is set inside the protective frame, and several columns are set around the protective net on the outside of the protective net. Several small holes that mosquitoes cannot pass through are set in the middle of the protective net.

[0010] As a preferred technical solution of this utility model, the protective net is made of flexible mesh material, and a fixing ring is fixedly connected to the top of the protective net, with multiple slots pre-set on the top wall of the fixing ring.

[0011] As a preferred embodiment of this utility model, the top wall of the fixing ring is fixedly connected to multiple magnetic pieces, each of which is embedded in a slot, and the top of each magnetic piece is magnetically connected to the bottom wall of the top plate.

[0012] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0013] A protective component consisting of a top plate and a protective frame is located on the outside of the sensor. Several circumferentially arranged columns and protective rods are set between the top plate and the protective frame to protect the outside of the sensor. This can effectively improve the sensor's own protective performance and prevent the sensor from being directly damaged by falling from a height.

[0014] Furthermore, by installing a stretchable protective net between the protective frame and the top plate, the net provides further protection to the outside of the sensor when fully stretched. The net has holes in the middle that mosquitoes cannot pass through, thus preventing flying insects from directly attaching to the sensor surface and avoiding short circuits caused by them entering the sensor.

[0015] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective net structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the bottom structure of the sensor of this utility model;

[0021] The accompanying figure is labeled as follows:

[0022] 1. Sensor; 2. Support box; 3. Connecting rod; 4. Top plate; 5. Connecting bolt; 6. Guard rod; 7. Guard frame; 8. Guard net; 9. Column; 10. Magnetic plate; 11. Fixing ring; 12. Sensor. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and, together with the embodiments of the present invention, serve to illustrate the principles of the present invention.

[0024] See Figures 1-4 This utility model provides a smoke sensing device, including a sensor 1, with a plurality of sensors 12 pre-set inside the sensor 1. A support box 2 is fixedly connected to the top of the sensor 1. The support box 2 has a circular structure, and four sets of connecting bolts 5 are fixedly connected to the outer side wall of the support box 2. A docking rod 3 is fixedly connected to the middle of the support box 2. Two sets of docking holes are pre-set on both sides of the top of the docking rod 3. The docking rod 3 docks with the ceiling through the docking holes. A protective component is fixedly connected to the outside of the sensor 1, and an insect-proof structure is provided in the middle of the protective component.

[0025] The protective components include a protective frame 7 and a top plate 4. Several sets of uprights 9 are arranged circumferentially between the protective frame 7 and the top plate 4. A protective rod 6 is sleeved in the middle of the uprights 9. The inner wall of the top plate 4 is fixed to the end of the connecting bolt 5. The uprights 9 and the protective frame 7 form a side protective ring. When forklifts scrape against goods during warehouse handling, when workshop carts collide, or when brooms / mops hit during daily cleaning, the impact will first contact the uprights 9 or the protective frame 7, rather than directly impacting the sensor 1 housing. The protective frame 7 can act as a "support structure" to prevent the sensor from being squeezed and deformed. The combination structure of "protective frame 7 + top plate 4 + uprights 9" is not a simple physical shield, but a system solution that takes into account protection, detection, adaptability, and maintainability. It can ensure that the sensor is "not damaged, does not give false alarms, and can accurately detect smoke" in high-risk, high-pollution, and complex environments, while reducing long-term maintenance costs and allowing the equipment to operate reliably in more scenarios (such as factories, warehouses, and outdoors), truly playing the role of "the first line of defense for fire early warning".

[0026] The insect-proof structure includes a protective net 8, which is set inside the protective frame 7, and several uprights 9 are set around the protective net 8 on the outside of the protective net 8. Several small holes that mosquitoes cannot pass through are set in the middle of the protective net 8.

[0027] The protective net 8 is made of flexible mesh material. The top of the protective net 8 is fixedly connected to the fixing ring 11, and the top wall of the fixing ring 11 has multiple pre-cut slots.

[0028] Multiple magnetic pieces 10 are fixedly connected to the top wall of the fixing ring 11. The multiple magnetic pieces 10 are embedded in the slot. The top of the magnetic pieces 10 is magnetically connected to the bottom wall of the top plate 4. When in use, by holding the fixing ring 11 and pulling the protective net 8 upward, the magnetic pieces 10 can be magnetically connected to the inner bottom wall of the top plate 4, thus completing the setting of the protective net 8. The protective net 8 can block large debris such as dust, cotton, hair, and kitchen oil fume particles in the environment, and only allow smoke to enter the internal photoelectric chamber / ionization chamber through the mesh, ensuring that the infrared light path or ionization signal is not blocked, preventing mosquitoes from contacting the high voltage electrode inside the smoke sensor, and preventing the electrode from short-circuiting and burning the core components.

[0029] The core of the smoke sensor 1 is to capture smoke particles through an internal photoelectric chamber or ionization chamber. The primary function of the protective mesh is to filter "effective smoke" from "ineffective interference," ensuring that the smoke can pass through smoothly. At the same time, it blocks substances that will clog or contaminate the detection channel, avoiding the fatal flaw of "not reporting smoke." It can block dust, lint, hair, and kitchen grease droplets in the environment, preventing these substances from accumulating on the surface of the infrared emitting / receiving tube in the photoelectric chamber or blocking the sampling hole in the ionization chamber, thus preventing the smoke from reaching the core detection element and causing the failure of "smoke appearing in the fire but the sensor not alarming."

[0030] A protective assembly consisting of a top plate 4 and a protective frame 7 is set on the outside of the sensor 1. Several circumferentially arranged columns 9 and protective rods 6 are set between the top plate 4 and the protective frame 7 to form a protective structure on the outside of the sensor 1. This can effectively improve the protective performance of the sensor 1 itself and avoid the phenomenon that the sensor 1 will be directly damaged due to falling from a height in the future.

[0031] Furthermore, a stretchable protective net 8 is installed between the protective frame 7 and the top plate 4. When fully stretched, the protective net 8 provides further protection for the outside of the sensor 1. The protective net 8 has holes in the middle that mosquitoes cannot pass through, thereby preventing flying insects from directly attaching to the surface of the sensor and avoiding short circuits caused by them entering the sensor.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A smoke sensing device, characterized by: The device includes a sensor (1), which has several sensors (12) pre-installed inside. A support box (2) is fixedly connected to the top of the sensor (1). The support box (2) has a circular structure and four sets of connecting bolts (5) are fixedly connected to the outer wall of the support box (2). A docking rod (3) is fixedly connected to the middle of the support box (2). Two sets of docking holes are pre-installed on both sides of the top of the docking rod (3). The docking rod (3) docks with the ceiling through the docking holes. A protective component is fixedly connected to the outside of the sensor (1). An insect-proof structure is provided in the middle of the protective component.

2. A smoke sensing device as claimed in claim 1, characterized in that: The protective components include a protective frame (7) and a top plate (4). Several sets of columns (9) are arranged circumferentially between the protective frame (7) and the top plate (4). A protective rod (6) is sleeved in the middle of the column (9). The inner wall of the top plate (4) is fixed to the end of the connecting bolt (5).

3. A smoke sensing device as claimed in claim 2, wherein: The insect-proof structure includes a protective net (8), which is set inside the protective frame (7), and several columns (9) are set around the protective net (8) on the outside of the protective net (8). Several small holes that mosquitoes cannot pass through are set in the middle of the protective net (8).

4. A smoke sensing device as claimed in claim 3, wherein: The protective net (8) is made of flexible mesh material. The top of the protective net (8) is fixedly connected to a fixing ring (11), and the top wall of the fixing ring (11) has multiple pre-set slots.

5. A smoke sensing device as claimed in claim 4, characterised in that: The top wall of the fixing ring (11) is fixedly connected to multiple magnetic pieces (10), and the multiple magnetic pieces (10) are embedded in the slot. The top of the magnetic pieces (10) is magnetically connected to the bottom wall of the top plate (4).