Smoke-sensing fire detector capable of being placed in cold storage project
By using polypropylene material and flame-retardant coating layer in the housing of the smoke detector, and incorporating an internal PPS material layer, the problem of poor cold resistance of the equipment in cold storage environments is solved, achieving stability and extended service life of the equipment in low-temperature environments.
Patent Information
- Application Number
- CN202422978789.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing smoke detectors have poor cold resistance in cold storage environments, leading to equipment damage and shortened service life.
The outer shell is made of polypropylene and coated with a flame-retardant coating. An inner PPS material layer is used as a high-temperature resistant layer. Combined with the composite material layer, the cold and high temperature resistance of the equipment is enhanced.
This improves the stability and lifespan of the detector in low-temperature environments, prevents equipment damage due to low temperatures, and extends the equipment's service life.
Smart Images

Figure CN223539235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to devices in the field of smoke detectors, and more particularly to a smoke detector that can be placed in cold storage projects. Background Technology
[0002] Standalone smoke detectors automatically sound an alarm by sensing fire characteristics such as smoke and flames. They are mainly divided into two types: smoke detectors and flame detectors. Smoke detectors sense smoke particles and automatically sound an alarm when the smoke concentration reaches a certain level. Flame detectors, on the other hand, sense a flame source and automatically sound an alarm when a flame is detected. Smoke detectors are also required in some cold storage projects.
[0003] Currently available smoke detectors that can be placed in cold storage projects have poor cold resistance. Due to the low temperature outside the cold storage room for a long time, the smoke detectors will be damaged, which will affect their performance and shorten their service life.
[0004] Therefore, it is necessary to provide a smoke detector that can be placed in cold storage projects to solve the above-mentioned technical problems. The information disclosed in this background section is only intended to enhance the understanding of the overall background of this utility model, and is not necessarily to be regarded as an admission or to imply in any way that the information constitutes prior art that has become known to those skilled in the art. Utility Model Content
[0005] The purpose of this utility model is to provide a smoke detector that can be placed in cold storage projects, thereby solving the problem that existing smoke detectors have poor cold resistance. Prolonged installation outside cold storage rooms at extremely low temperatures can damage the smoke detectors, affecting their performance and shortening their lifespan. The preferred technical solutions provided by this utility model offer numerous technical advantages, which are detailed below.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] This utility model provides a smoke detector that can be placed in a cold storage project, comprising: a detector body, a smoke detection component assembly at the upper end of the detector body, speakers at the front and rear sides of the upper end of the detector body, a plastic shell, a pressure-resistant layer on the outer surface of the plastic shell, a protective outer layer on the outer surface of the pressure-resistant layer, a high-temperature resistant layer in the inner cavity of the plastic shell, a protective outer layer comprising polypropylene material, a flame-retardant coating layer on the outer surface of the polypropylene material, a PPS material layer, and a composite material layer on the outer surface of the PPS material layer.
[0008] Preferably, indicator lights are provided on both the front and rear sides of the upper left side of the detector body, and the number of indicator lights is two.
[0009] Preferably, the lower end of the detector body is fitted with a mounting base by screws, and expansion bolts are provided around the upper end of the mounting base.
[0010] Preferably, a switch button is provided on the right side of the detector body.
[0011] Preferably, the upper end of the mounting base is provided with mounting screw holes around its perimeter for use with expansion bolts.
[0012] Preferably, the flame-retardant coating layer is applied to the outer surface of the polypropylene material.
[0013] The beneficial effects of the smoke detector provided by this utility model, which can be placed in cold storage projects, are as follows: Compared with the original smoke detector, this smoke detector has better cold resistance. Because it is installed in the cold storage room for a long time in low temperatures, it will not be damaged, and its performance will not be affected, thus extending the service life of the smoke detector. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a smoke detector that can be placed in a cold storage project according to this utility model.
[0015] Figure 2 This is a top view of the plastic housing structure of a smoke detector that can be placed in a cold storage project, according to this utility model.
[0016] Figure 3 This is a top view of the protective outer layer structure of a smoke detector that can be placed in a cold storage project, according to this utility model.
[0017] Figure 4 This is a top view of the high-temperature resistant layer structure of a smoke detector that can be placed in a cold storage project, according to this utility model.
[0018] In the diagram: 1. Detector body; 2. Smoke detection component assembly; 3. Speaker; 4. Plastic shell; 5. Pressure-resistant layer; 6. Protective outer layer; 61. Polypropylene material; 62. Flame-retardant coating layer; 7. High-temperature resistant layer; 71. PPS material layer; 72. Composite material layer; 8. Indicator light; 9. Mounting base; 10. Expansion bolt; 11. Switch button. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding technical features. The drawings are for illustrative purposes only and are not necessarily drawn to scale.
[0021] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, a smoke detector that can be placed in a cold storage project includes: a detector body 1, a smoke detection component group 2 at the upper end of the detector body 1, a speaker 3 at the front and rear sides of the upper end of the detector body 1, a plastic shell 4, a pressure-resistant layer 5 on the outer surface of the plastic shell 4, a protective outer layer 6 on the outer surface of the pressure-resistant layer 5, a high-temperature resistant layer 7 in the inner cavity of the plastic shell 4, a polypropylene material 61 on the outer surface of the polypropylene material 61, a flame-retardant coating layer 62 on the outer surface of the polypropylene material 61, a PPS material layer 71 on the outer surface of the PPS material layer 71, and a composite material layer 72 on the outer surface of the PPS material layer 71.
[0022] Furthermore, indicator lights 8 are provided on both the front and rear sides of the upper left side of the detector body 1, and there are two indicator lights 8.
[0023] In this embodiment, workers use mounting base 9 and expansion bolts 10 to fix the detector body 1 near the cold storage room or a designated safe area in the cold storage project, thereby increasing the stability of the detector body 1 during installation.
[0024] Furthermore, a mounting base 9 is installed at the lower end of the detector body 1 by screws, and expansion bolts 10 are provided around the upper end of the mounting base 9.
[0025] In this embodiment, the pressure-resistant layer 5 increases the strength and pressure resistance of the plastic shell 4, which helps to prevent the detector body 1 from being damaged by falling during installation or disassembly.
[0026] Furthermore, a switch button 11 is provided on the right side of the detector body 1.
[0027] In this embodiment, polypropylene material 61 is a plastic material with excellent cold resistance. It can not only withstand low temperature environments, but also has the characteristics of high strength, light weight and strong wear resistance, which makes it widely used in various fields, further improving the cold resistance of the detector body 1.
[0028] Furthermore, mounting holes for use with expansion bolts 10 are provided around the upper end of the mounting base 9.
[0029] In this embodiment, the flame-retardant coating layer 62 is used to slow down the burning rate of the plastic or prevent it from burning, making it less likely to ignite when burning and slowing down the burning rate. In the event of a fire, this can slow down the burning rate and extend the time for the detector body 1 to alert nearby personnel as much as possible.
[0030] Furthermore, a flame-retardant coating layer 62 is applied to the outer surface of the polypropylene material 61.
[0031] In this embodiment, the PPS material layer 71 has excellent advantages such as high temperature resistance, chemical resistance, weather resistance, and flame retardancy, which further increases the high temperature resistance of the detector body 1. In addition, in combination with the composite material layer 72, it also has extremely high heat resistance, corrosion resistance and good mechanical properties, which extends the service life of the detector body 1.
[0032] During use, workers fix the detector body 1 near the cold storage room or a designated safe area in the cold storage project using the mounting base 9 and expansion bolts 10. This fixation increases the stability of the detector body 1 during installation. The pressure-resistant layer 5 increases the strength and pressure resistance of the plastic shell 4, preventing damage to the detector body 1 due to falling during installation or disassembly. The polypropylene material 61 is a plastic material with excellent cold resistance, which not only withstands low-temperature environments but also has high strength, light weight, and strong wear resistance, making it widely used in various fields and further improving the detection... The cold resistance of the detector body 1 is achieved by using a flame-retardant coating layer 62 to slow down or prevent the burning of the plastic, making it less likely to ignite and slowing down the burning rate. In the event of a fire, this slows down the burning rate and extends the time that the detector body 1 can alert nearby personnel. The PPS material layer 71 has excellent high-temperature resistance, chemical resistance, weather resistance, and flame retardancy, further enhancing the high-temperature resistance of the detector body 1. In addition, in combination with the composite material layer 72, it also has extremely high heat resistance, corrosion resistance, and good mechanical properties, extending the service life of the detector body 1.
[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A smoke detector that can be placed in a cold storage project, characterized in that, include: The detector body (1) has a smoke detection component group (2) at its upper end. Speakers (3) are provided on the front and rear sides of the upper end of the detector body (1). The detector body (1) includes a plastic shell (4). A pressure-resistant layer (5) is provided on the outer surface of the plastic shell (4). A protective outer layer (6) is provided on the outer surface of the pressure-resistant layer (5). A high-temperature resistant layer (7) is provided in the inner cavity of the plastic shell (4). The protective outer layer (6) includes polypropylene material (61). A flame-retardant coating layer (62) is provided on the outer surface of the polypropylene material (61). The high-temperature resistant layer (7) includes a PPS material layer (71). A composite material layer (72) is provided on the outer surface of the PPS material layer (71).
2. A smoke detector that can be placed in a cold storage project according to claim 1, characterized in that: The detector body (1) is provided with indicator lights (8) on the front and rear sides of the upper left side, and there are two indicator lights (8).
3. A smoke detector that can be placed in a cold storage project according to claim 1, characterized in that: The lower end of the detector body (1) is fitted with a mounting base (9) by screws, and expansion bolts (10) are provided around the upper end of the mounting base (9).
4. A smoke detector that can be placed in a cold storage project according to claim 1, characterized in that: A switch button (11) is provided on the right side of the detector body (1).
5. A smoke detector that can be placed in a cold storage project according to claim 3, characterized in that: The mounting base (9) has mounting screw holes around its upper end for use with expansion bolts (10).
6. A smoke detector that can be placed in a cold storage project according to claim 1, characterized in that: The flame-retardant coating layer (62) is applied to the outer surface of the polypropylene material (61).