Double-smoke-chamber detector easy to assemble and maintain

Abstract

The utility model relates to the technical field of smoke detectors, and discloses a double-smoke-chamber detector easy to assemble and maintain, which comprises a base, a middle seat, a circuit board, an upper cover and a front cover, and after the middle seat is in threaded fixation with the circuit board through screws, the circuit board, the middle seat and the upper cover are packaged and fixed together; after the upper cover and the base are buckled and locked, the circuit board and the middle base are packaged in a space defined by the upper cover and the base, and the front cover is buckled and locked on the upper cover. The base is mounted on the mounting surface, and the middle seat, the circuit board, the upper cover and the front cover are assembled together and then buckled on the base, so that in the mounting mode of modular design, the whole detector does not need to be detached from the mounting surface during overhaul and maintenance, and only the middle seat, the circuit board, the upper cover and the front cover need to be separated from buckling with the base; disassembly and maintenance are easy, and daily inspection and cleaning work are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of smoke detectors, and particularly relates to a double-smoke-chamber detector that is easy to assemble and maintain. Background Art

[0002] Smoke detectors may not take into account the modular design concept, so their components (such as circuit boards and upper covers) are not designed to be individually disassembled and replaced. Smoke detectors are installed in relatively inaccessible positions, such as high ceilings or areas that are not easily movable. Traditional smoke detectors need to be removed from the mounting surface as a whole for inspection and maintenance, and such installation positions make it difficult to repair the detectors without disassembly. This design makes the detection and repair require complete disassembly of the detector.

[0003] To ensure that the detector can reliably detect smoke and prevent damage to sensors and electronic components from the external environment (such as dust, moisture, etc.), the detector design may adopt a relatively enclosed structure. Although this sealing design improves the protection performance of the detector, it also increases the difficulty of disassembly and repair. Since traditional smoke detectors need to be removed from the mounting surface as a whole, if a circuit board moves and causes a fault, it may affect the performance of the entire detector. This increases the difficulty of installation and maintenance, and the installation method of traditional smoke detectors may not be suitable for installation in some special environments, such as vibration or shock environments, high-temperature environments, etc. There are certain defects in the installation and maintenance, applicable environment, etc. of traditional smoke detectors. Summary of the Utility Model

[0004] To make up for the deficiencies of the prior art, the utility model proposes a double-smoke-chamber detector that is easy to assemble and maintain.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A double-smoke-chamber detector that is easy to assemble and maintain, including a base, a middle seat, a circuit board, an upper cover, and a front cover. After the middle seat is threadedly fixed to the circuit board with screws, the circuit board, the middle seat, and the upper cover are encapsulated and fixed together;

[0007] After the upper cover is snap-locked to the base, the circuit board and the middle seat are encapsulated in the space surrounded by the upper cover and the base, and the front cover is snap-locked to the upper cover.

[0008] The base is mounted on the mounting surface (the surface of a wall, ceiling or other mounting body). The middle seat, circuit board, upper cover and front cover are assembled together and then buckled onto the base. With this installation method, when performing maintenance, it is not necessary to remove the entire detector from the mounting surface. It only needs to disconnect the buckling connection between the middle seat, circuit board, upper cover and the base. The structural design of the base, circuit board, middle seat, upper cover and front cover makes the detector easy to disassemble and maintain, which is beneficial for daily inspection and cleaning work. Through the encapsulation and fixation of the base, middle seat, upper cover and front cover, the detector forms a compact structure, which is beneficial for installation in various environments. The encapsulation and fixation method of the circuit board, middle seat and upper cover indicates that the detector adopts a modular design, which helps to simplify the production and repair processes.

[0009] Preferably, rack card positions are provided on the perforated mounting posts A at the four corners inside the upper cover, and clamping strips are provided on the perforated mounting posts B at the four corners of the middle seat. After the clamping strips pass through the arc-shaped openings at the four corners of the circuit board, they are clamped with the rack card positions to clamp and fix the circuit board between the middle seat and the upper cover.

[0010] Through the design of the rack card positions and clamping strips, it can be ensured that the circuit board is in the correct position during installation, improving the accuracy and consistency of assembly. The clamping connection design of the rack card positions and clamping strips helps to prevent the circuit board from loosening due to vibration or other factors during the operation of the detector, ensuring a firm connection between the circuit board and the middle seat and upper cover. This design makes the installation and maintenance processes more convenient because the interaction between components simplifies the assembly and disassembly steps. By fixing the circuit board between the middle seat and the upper cover, the overall reliability of the detector can be improved, reducing the risk of failures caused by the movement of the circuit board. This installation method embodies the idea of modular design, enabling the circuit board to be quickly replaced, which is helpful for the later maintenance of the product. The design of the rack card positions and clamping strips helps to maintain the compact structure inside the detector, which is very beneficial for reducing the volume and simplifying the design.

[0011] Preferably, the middle seat, circuit board and upper cover are encapsulated and fixed together by four countersunk head screws passing through the middle seat and the circuit board.

[0012] The assembly of the middle seat, circuit board and upper cover has good firmness performance.

[0013] Preferably, the upper cover is provided with a buckle A and an outwardly protruding perforated mounting plate, and the base is provided with a slot and a perforated concave groove. When the upper cover is docked with the base, the buckle A is engaged and locked with the slot, the perforated mounting plate extends into the perforated concave groove, and the upper cover and the base are thread-reinforced by screws threadedly connected to the perforated mounting plate and the perforated concave groove.

[0014] The snap - fit locking between the buckle A and the card slot and the thread reinforcement of the screw ensure the stable connection between the upper cover and the base, improving the overall structural stability of the detector. Thread - reinforcing the upper cover and the base with screws effectively prevents loosening under vibration or impact environments, ensuring long - term stability. The design of the buckle A and the card slot simplifies the docking process between the upper cover and the base, making installation and maintenance more convenient. This connection method of the upper cover, the base, and the front cover embodies the idea of modular design, facilitating subsequent replacement, upgrade, or repair. The design of the perforated mounting plate and the perforated concave groove, as well as the reinforcement of the screw, provide a certain degree of protection for the detector, protecting internal components from the external environment.

[0015] Preferably, the front side of the upper cover is thread - fixed with connector A and connector B extending into the inner side of the upper cover through pan - head screws. The front cover covers the outside of connector A and connector B, and the front cover is snap - locked with the upper cover through the buckle B on both sides. The front cover is snap - locked with the upper cover through the buckle B on both sides, further ensuring the overall sealing and stability of the detector.

[0016] Compared with the prior art, the technical effects and advantages of the present utility model are:

[0017] Through the encapsulation and fixing method of the base, the middle seat, the upper cover, and the front cover, the easy - to - assemble and maintain dual - smoke - chamber detector forms a compact structure, which is conducive to installation in various environments. Moreover, the design of the detector enables it not to be disassembled from the installation surface during maintenance. Only the snap - fit connections between the base and the middle seat, the circuit board, the upper cover, and the front cover need to be disengaged, which greatly improves the convenience of installation and maintenance.

[0018] The encapsulation and fixing methods of the circuit board, the middle seat, and the upper cover, as well as the designs of the buckle A, the positioning strip, connector A, and connector B, all embody the modular idea, facilitating subsequent replacement, upgrade, or repair, helping to simplify the production and repair processes. The design of the rack positioning and the positioning strip ensures that the circuit board is in the correct position during installation, preventing the circuit board from loosening due to vibration or other factors during the operation of the detector, improving the overall reliability of the detector. The design of the perforated mounting plate and the perforated concave groove, as well as the reinforcement of the screw, provide a certain degree of protection for the detector, protecting internal components from the external environment. This connection method of the upper cover, the base, and the front cover helps to maintain the compact structure inside the detector, which is very beneficial for reducing the volume and simplifying the design.

[0019] The front cover is snap - locked with the upper cover through the buckle B, further ensuring the overall sealing and stability of the detector. The smoke chamber and the circuit board are fixed with screws to achieve the purposes of firmness, anti - disassembly, and easy maintenance. The circuit board uses a bayonet method to fasten the upper cover and the middle seat, which is firm and convenient for disassembly and dust cleaning. Description of the Drawings

[0020] Figure 1 is a schematic structural view of the present utility model;

[0021] Figure 2 is a schematic structural view of the base of the present utility model;

[0022] Figure 3 is a schematic structural view of the front cover of the present utility model;

[0023] Figure 4 is a schematic structural view of the middle seat of the present utility model;

[0024] Figure 5 is a schematic structural view of the upper cover of the present utility model;

[0025] Figure 6 is a schematic structural view of the circuit board installation of the present utility model.

[0026] In the figure: 1. Base; 2. Countersunk head screw; 3. Middle seat; 4. Self-tapping screw; 5. Circuit board; 6. Temperature-sensing raised column; 7. Upper cover; 8. Light guide column; 9. Connector A; 10. Connector B; 11. Pan head screw; 12. Front cover; 13. Smoke chamber; 14. Smoke sensor probe; 15. Holed mounting post A; 16. Rack clamping position; 17. Holed mounting post B; 18. Clamping strip; 19. Arc-shaped opening; 20. Snap A; 21. Holed mounting plate; 22. Card slot; 23. Holed concave groove; 24. Snap B; 25. Hole position groove. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] The following is a further detailed description of the present application in conjunction with the attached Figures 1-6 to further illustrate the present application in detail.

[0029] An embodiment of the present application discloses a double-smoke-chamber detector that is easy to assemble and maintain, including a base 1, a middle seat 3, a circuit board 5, an upper cover 7, and a front cover 12. Two smoke chambers 13 and a light guide column 8 are provided on the upper cover 7;

[0030] Two smoke sensor probes 14 extending into the smoke chambers 13 are provided on the circuit board 5, and a temperature-sensing raised column 6 is threadedly connected between the two smoke sensor probes 14 on the circuit board 5 through a self-tapping screw 4;

[0031] The design of the multi-parameter double-smoke chamber 13 detector aims to improve the accuracy and reliability of fire detection. This detector contains two independent smoke chambers 13, and each smoke chamber 13 is equipped with sensors for detecting smoke, temperature, and / or other fire-related parameters. The dual-smoke chamber 13 design can improve the detection reliability because even if one smoke chamber 13 fails to detect a fire for some reason, the other smoke chamber 13 may still issue an alarm. In addition to smoke detection, the high-column temperature sensor 6 can also monitor other fire-related parameters such as temperature, which can more accurately determine whether a fire has occurred and help distinguish between smoke and truly harmful smoke.

[0032] Traditional smoke detectors may give false alarms due to other factors in the environment (such as dust, etc.). The double-smoke chamber 13 detector can reduce the possibility of such false alarms by comparing the data of the two smoke chambers 13. The double-smoke chamber 13 detector can monitor the fire situation from multiple angles simultaneously. Once signs of fire are detected, the response speed may be faster, thereby reducing the damage caused by the fire.

[0033] The middle seat 3 is fixedly screwed to the circuit board 5 with screws;

[0034] On the perforated mounting posts A15 at the four corners inside the upper cover 7, there are rack clamping positions 16. On the perforated mounting posts B17 provided at the four corners of the middle seat 3, there are clamping strips 18. After the clamping strips 18 pass through the arc-shaped openings 19 at the four corners of the circuit board 5, they are clamped with the rack clamping positions 16 and the circuit board 5 is clamped and fixed between the middle seat 3 and the upper cover 7; when the rack clamping positions 16 and the clamping strips 18 are clamped and engaged, the perforated mounting posts A15 and the perforated mounting posts B17 are in contact and abutted against each other.

[0035] The middle seat 3, the circuit board 5, and the upper cover 7 are encapsulated and fixed together by four countersunk head screws 2 passing through the middle seat 3 and the circuit board 5;

[0036] The upper cover 7 is provided with a buckle A20 and an outwardly protruding perforated mounting plate 21. The base 1 is provided with a card slot 22 and a perforated concave groove 23. When the upper cover 7 and the base 1 are butted, the buckle A20 and the card slot 22 are cooperatively buckled and locked. The perforated mounting plate 21 extends into the perforated concave groove 23, and the upper cover 7 and the base 1 are threadedly reinforced by screws threadedly connected to the perforated mounting plate 21 and the perforated concave groove 23;

[0037] The middle seat 3 is threadedly fixed to the circuit board 5 with screws to form a compact assembly. The mounting posts A at the four corners inside the upper cover 7 and the mounting posts B at the four corners of the middle seat 3 adopt the design of the clamping strip 18 and the rack clamping 16 to clamp and fix the circuit board 5 between the middle seat 3 and the upper cover 7. Four countersunk head screws 2 pass through the middle seat 3, the circuit board 5 and the upper cover 7 to encapsulate and fix them together, improving the stability of the overall structure. This structural encapsulation and modular design facilitate later maintenance, replacement and upgrade. While being stable, it is easy to disassemble and clean the dust.

[0038] The upper cover 7 is provided with a buckle A20 and a perforated mounting plate 21, and the base 1 is provided with a slot 22 and a perforated concave groove 23. When the upper cover 7 is docked with the base 1, the buckle A20 is engaged and locked with the slot 22, and the perforated mounting plate 21 extends into the concave groove. The perforated mounting plate 21 and the concave groove are threadedly reinforced with screws to ensure the stable connection between the upper cover 7 and the base 1. Such a design improves the stability and shock resistance of the overall structure of the detector.

[0039] On the front side of the upper cover 7, a connector A9 and a connector B10 extending into the inner side of the upper cover 7 are threadedly fixed with pan head screws 11. The front cover 12 covers the outside of the connector A9 and the connector B10, and the front cover 12 is snap-fitted and locked with the upper cover 7 through the buckles B24 on both sides thereof.

[0040] The front cover 12 is provided with hole slots 25 for the connector A9 and the connector B10 to penetrate through.

[0041] On the front side of the upper cover 7, a connector A9 and a connector B10 are fixed with pan head screws 11. The front cover 12 covers the outside of the connector. The front cover 12 is provided with buckles B24 on both sides, which are snap-fitted and locked with the upper cover 7. The installation and sealing of the front cover 12 are realized, and the overall stability of the detector is further ensured.

[0042] Generally speaking, the design of this multi-parameter double-smoke chamber 13 detector fully embodies the ideas of modularization and compactness. Through the encapsulation and fixation of the middle seat 3, the circuit board 5 and the upper cover 7, the reliable connection between the upper cover 7 and the base 1, and the sealed installation of the front cover 12, the advantages of the stability, protection and easy maintenance of the detector structure are realized. This design not only improves the performance and reliability of the product, but also simplifies the production and maintenance processes, meeting the development needs of modern fire safety technology.

[0043] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A double smoke chamber detector that is easy to assemble and maintain, comprising a base (1), a middle base (3), a circuit board (5), an upper cover (7) and a front cover (12), characterized in that: After the middle seat (3) is threadedly fixed to the circuit board (5) by means of screws, the circuit board (5), the middle seat (3) and the upper cover (7) are packaged and fixed together; After the upper cover (7) and the base (1) are buckled and locked, the circuit board (5) and the middle seat (3) are enclosed in the space enclosed by the upper cover (7) and the base (1), and the front cover (12) is buckled and locked on the upper cover (7).

2. The double smoke chamber detector that is easy to assemble and maintain according to claim 1 is characterized in that: Two smoke chambers (13) and a light guide column (8) are provided on the upper cover (7).

3. The double smoke chamber detector that is easy to assemble and maintain according to claim 2 is characterized in that: The circuit board (5) is provided with two smoke probes (14) extending into the smoke chamber (13), and a temperature sensing heightening column (6) is threadedly connected on the circuit board (5) and located between the two smoke probes (14) via a self-tapping screw (4).

4. The double smoke chamber detector that is easy to assemble and maintain according to claim 1 is characterized in that: The mounting columns A (15) with holes at the four corners of the upper cover (7) are provided with rack clamps (16), and the mounting columns B (17) with holes at the four corners of the middle seat (3) are provided with clamping strips (18). The clamping strips (18) pass through the arc-shaped openings (19) at the four corners of the circuit board (5) and then clamp with the rack clamps (16) to fix the circuit board (5) between the middle seat (3) and the upper cover (7).

5. The double smoke chamber detector that is easy to assemble and maintain according to claim 1 is characterized in that: The middle seat (3), the circuit board (5) and the upper cover (7) are packaged and fixed together by four countersunk screws (2) penetrating the middle seat (3) and the circuit board (5).

6. The double smoke chamber detector that is easy to assemble and maintain according to claim 4 or 5, characterized in that: The upper cover (7) is provided with a buckle A (20) and a mounting plate (21) with a hole protruding outward, and the base (1) is provided with a slot (22) and a concave slot with a hole (23). When the upper cover (7) and the base (1) are docked, the buckle A (20) and the slot (22) are matched and locked, and the mounting plate (21) with a hole extends into the concave slot (23). The upper cover (7) and the base (1) are threadedly reinforced by screws threadedly connected to the mounting plate (21) with a hole and the concave slot (23).

7. The double smoke chamber detector that is easy to assemble and maintain according to claim 6 is characterized in that: When the rack locking position (16) and the locking position strip (18) are engaged with each other, the mounting column A with a hole (15) and the mounting column B with a hole (17) are in contact with each other.

8. The double smoke chamber detector that is easy to assemble and maintain according to claim 1 is characterized in that: The front side of the upper cover (7) is threadedly fixed with a connector A (9) and a connector B (10) extending into the inner side of the upper cover (7) by means of pan head screws (11); the front cover (12) covers the outer sides of the connector A (9) and the connector B (10); the front cover (12) is engaged and locked with the upper cover (7) by means of buckles B (24) on both sides thereof.

9. The double smoke chamber detector that is easy to assemble and maintain according to claim 1 is characterized in that: The front cover (12) is provided with a hole slot (25) for the connector A (9) and the connector B (10) to penetrate.

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