Ceiling-mounted fire smoke sensor

Abstract

The utility model relates to the technical field of smoke sensor, and disclose a ceiling type fire smoke sensor, including mounting seat, the mounting seat top hinged has the cladding cover, the cladding cover is inserted with the smoke sensor body, the cladding cover edge place array is provided with the buckle, the cladding cover circumferential surface is connected with the reinforcement subassembly on screw thread, the mounting seat and the cladding cover are offered and set up the wiring channel, the mounting seat bottom is provided with the installation component. By pushing the cladding cover deflection relative mounting seat, the swing arm rotates relative to the boss, after adjusting the angle of smoke sensor body, screw the knob, make the knob extrude on the surface of boss, so that the cladding cover keeps in the current angle, to reach the purpose that the smoke sensor angle is adjusted conveniently.

Description

Technical Field

[0001] This utility model relates to the field of smoke detector technology, specifically a ceiling-mounted fire smoke detector. Background Technology

[0002] Smoke detectors, also known as smoke alarms, are a common type of fire-fighting equipment. They prevent fires by monitoring the concentration of smoke. When the smoke concentration exceeds a warning threshold, the smoke detector emits an audible and visual signal to alert people.

[0003] Patent document CN222734529U discloses a fire safety smoke detector, including a mounting base and a smoke detector body. The mounting base is provided with a mounting mechanism, and the bottom end of the mounting base is provided with a mounting box. The top end of the mounting box is provided with an assembly groove. The smoke detector body is provided with a limiting groove, and the smoke detector body abuts against the assembly groove. A limiting ring is provided between the limiting groove and the smoke detector body. A fastening mechanism is provided between the mounting box and the smoke detector body. The fastening mechanism includes a fastening box, an adjusting groove, an inclined plate, and a fastening groove. The fastening groove is provided on the assembly groove, and the fastening box is installed on the mounting base. This structure allows for quick assembly and disassembly of the smoke detector body, thereby facilitating personnel replacement or maintenance work, improving personnel work efficiency, and enabling assembly and disassembly of the smoke detector body without the use of any tools.

[0004] In this technical solution, the smoke detector is easy to install on the ceiling that has already been suspended. However, for buildings with sloping roofs, after the smoke detector is installed, it is in a tilted position, making it inconvenient to adjust the angle of the smoke detector. Therefore, further improvements can be made. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a ceiling-mounted fire smoke detector, which has advantages such as easy adjustment of the angle after installation, thus solving the problem of inconvenient adjustment of the smoke detector's installation angle.

[0007] (II) Technical Solution

[0008] To achieve the aforementioned purpose of facilitating the adjustment of the smoke detector's angle after installation, this utility model provides the following technical solution: a ceiling-mounted fire smoke detector, including a mounting base, a cover hinged to the top of the mounting base, a smoke detector body inserted inside the cover, buckles arrayed at the edge of the cover, a reinforcing component threadedly connected to the circumferential surface of the cover, wiring channels provided on the mounting base and the cover, and an installation component provided at the bottom of the mounting base.

[0009] Preferably, a boss is fixedly installed at the center of the top of the mounting base. The lower half of the boss has a rectangular cross-section, and the upper half of the boss has a semi-circular cross-section. Two rotating arms are fixedly installed at the bottom of the cover. A rotating shaft is fixedly installed on the opposite side of the bottom end of each of the two rotating arms. The rotating shaft is rotatably connected to the boss.

[0010] Preferably, a nut is fixedly installed on one of the rotating arms, and a knob is internally threaded onto the nut. The knob passes through the rotating arm and fits against the boss.

[0011] Preferably, the buckle includes an inclined protrusion fixedly installed on the top edge of the rotating arm. The inclined protrusion is inclined outward, and a V-shaped protrusion is provided on the side of the inclined protrusion facing the center of the cover. The V-shaped protrusion fits against the surface of the smoke detector body.

[0012] Preferably, the reinforcing component includes a threaded ring threaded to the outside of the cover, a horn ring fixedly installed on the top of the threaded ring, the inner diameter of the horn ring gradually increasing from bottom to top, and a compression ring fixedly installed in the middle of the inner wall of the horn ring, the compression ring being fitted against the surface of the inclined convex strip.

[0013] Preferably, the wiring channel includes a U-shaped groove at the bottom of the mounting base, the U-shaped groove extending to the circumferential surface of the mounting base, a through hole at the center of the mounting base, the through hole communicating with the U-shaped groove; a wire-passing cavity is provided inside the boss, an arc-shaped groove is provided at the top of the boss, the arc-shaped groove communicating with the wire-passing cavity, and a through hole at the center of the cover.

[0014] Preferably, the mounting assembly includes four extension strips rotatably connected to the bottom of the mounting base, each extension strip having a mounting hole extending through its free end, and the bottom of the mounting base having four receiving grooves, with the extension strips located inside the receiving grooves.

[0015] Preferably, double-sided adhesive tape is fixedly installed at the bottom of the mounting base.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a ceiling-mounted fire smoke detector, which has the following beneficial effects:

[0018] 1. This ceiling-mounted smoke detector has its extension strip deflected outwards, with the free end of the extension strip deflected to the outside of the receiving groove. Double-sided tape is then attached to the ceiling. After that, screws are used to pass through the mounting holes and fix it to the ceiling, thus fixing the mounting base to the ceiling. The smoke detector body is then inserted into the cover, with the V-shaped protrusion fastening onto the surface of the smoke detector body. The threaded ring is then tightened, causing the horn ring to move closer to the inclined protrusion, and the compression ring to press against the outside of the inclined protrusion, increasing the compressive force between the V-shaped protrusion and the smoke detector body. This facilitates the installation of the smoke detector.

[0019] 2. This ceiling-mounted fire smoke detector works by pushing the cover to deflect relative to the mounting base and rotating the arm relative to the boss. After adjusting the angle of the smoke detector body, the knob is turned so that it presses against the surface of the boss, thereby keeping the cover at the current angle and making it easy to adjust the angle of the smoke detector. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional exploded structure diagram of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the mounting base and the cover of this utility model in their separated states;

[0023] Figure 4 This is a schematic diagram of the front cross-sectional structure of the present invention after removing the smoke detector body;

[0024] Figure 5 This is a three-dimensional structural diagram of the mounting base of this utility model, viewed from below.

[0025] In the diagram: 100, mounting base; 200, cover; 300, smoke detector body; 400, buckle; 500, reinforcement component; 600, wiring channel; 700, mounting component; 101, boss; 201, rotating arm; 202, rotating shaft; 203, nut; 204, knob; 401, inclined ridge; 402, V-shaped protrusion; 501, threaded ring; 502, horn ring; 503, compression ring; 601, U-shaped groove; 602, through hole one; 603, wire passage cavity; 604, arc groove; 605, through hole two; 701, extension strip; 702, mounting hole; 703, receiving groove; 704, double-sided tape. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 A ceiling-mounted smoke detector includes a mounting base 100, a cover 200 hinged to the top of the mounting base 100, and a smoke detector body 300 inserted inside the cover 200. The angle of the smoke detector body 300 can be adjusted by rotating the cover 200 relative to the mounting base 100. Clips 400 are arrayed along the edge of the cover 200, and a reinforcing component 500 is threaded onto the circumference of the cover 200. The clips 400 and the reinforcing component 500 cooperate to secure the smoke detector body 300. Wiring channels 600 are provided on the mounting base 100 and the cover 200 for wires to pass through. A mounting component 700 is provided at the bottom of the mounting base 100. The mounting component 700 is fixed to the ceiling with screws.

[0028] A boss 101 is fixedly installed at the center of the top of the mounting base 100. The lower half of the boss 101 has a rectangular cross-section, and the upper half has a semi-circular cross-section. Two rotating arms 201 are fixedly installed at the bottom of the cover 200. A rotating shaft 202 is fixedly installed on opposite sides of the bottom of each rotating arm 201, and the rotating shaft 202 is rotatably connected to the boss 101. The bottom of the cover 200 rests against the arc-shaped surface of the top of the boss 101. A nut 203 is fixedly installed on one of the rotating arms 201. A knob 204 is internally threaded onto the nut 203. The knob 204 has threads and passes through the rotating arm 201, resting against the boss 101. After adjusting the tilt angle of the cover 200, the knob 204 is turned so that it is tightly pressed against the surface of the boss 101, preventing the rotating arm 201 from rotating relative to the boss 101. This keeps the cover 200 at its current angle.

[0029] The buckle 400 includes an inclined protrusion 401 fixedly installed on the top edge of the rotating arm 201. The inclined protrusion 401 is inclined outward, and a V-shaped protrusion 402 is provided on the side of the inclined protrusion 401 facing the center of the cover 200. The V-shaped protrusion 402 fits against the surface of the smoke detector body 300. When the smoke detector body 300 is inserted into the cover 200, the smoke detector body 300 presses the V-shaped protrusion 402 outward, causing the inclined protrusion 401 to deform outward. After the smoke detector body 300 is fully inserted into the cover 200, the inclined protrusion 401 returns to its original position under its own elasticity, and the V-shaped protrusion 402 is fastened to the surface of the smoke detector body 300.

[0030] The reinforcing component 500 includes a threaded ring 501 threadedly connected to the outside of the cover 200. A horn ring 502 is fixedly mounted on the top of the threaded ring 501. The inner diameter of the horn ring 502 gradually increases from bottom to top. A compression ring 503 is fixedly mounted in the middle of the inner wall of the horn ring 502, and the compression ring 503 fits against the surface of the inclined protrusion 401. By screwing the threaded ring 501, the horn ring 502 can be moved upward, and the compression ring 503 compresses the inclined protrusion 401, increasing the compressive force between the V-shaped protrusion 402 and the smoke detector body 300.

[0031] The wiring channel 600 includes a U-shaped groove 601 formed at the bottom of the mounting base 100, extending to the circumference of the mounting base 100. A through hole 602 is formed at the center of the mounting base 100, communicating with the U-shaped groove 601. Wires pre-installed on the ceiling can pass through the U-shaped groove 601 and exit through the through hole 602. A wiring cavity 603 is provided within the boss 101, and an arc-shaped groove 604 is formed at the top of the boss 101, communicating with the wiring cavity 603. A through hole 605 is formed at the center of the enclosure 200. Thus, after the antenna passes through the through hole 602 into the wiring cavity 603, it can continue through the arc-shaped groove 604 and the through hole 605, entering the enclosure 200 and connecting with the smoke detector body 300. This avoids exposing the wires externally, maintaining an aesthetically pleasing appearance.

[0032] The mounting assembly 700 includes four extension strips 701 rotatably connected to the bottom of the mounting base 100. Mounting holes 702 are formed through the free ends of the extension strips 701. The bottom of the mounting base 100 has four receiving slots 703, and the extension strips 701 are located inside the receiving slots 703. Before installation, the extension strips 701 are accommodated inside the receiving slots 703. During installation, the extension strips 701 can be deflected outwards, allowing the free ends of the extension strips 701 to move out of the receiving slots 703. Screws are then passed through the mounting holes 702 to fix the extension strips 701 to the ceiling. Double-sided adhesive tape 704 is fixedly installed on the bottom of the mounting base 100. The double-sided adhesive tape 704 can be used to adhere the mounting base 100 to the ceiling for pre-fixation, facilitating screw installation.

[0033] When in use, first deflect the extension strip 701 outward so that the free end of the extension strip 701 is deflected to the outside of the receiving groove 703. Then, stick the double-sided tape 704 to the ceiling. After that, use screws to pass through the mounting hole 702 to fix it to the ceiling, thereby fixing the mounting base 100 to the ceiling.

[0034] Next, insert the smoke sensor body 300 into the cover 200, and the V-shaped protrusion 402 is fastened on the surface of the smoke sensor body 300. Then, screw the threaded ring 501 so that the horn ring 502 moves closer to the inclined protrusion 401, and the compression ring 503 is pressed against the outside of the inclined protrusion 401, increasing the compressive force between the V-shaped protrusion 402 and the smoke sensor body 300.

[0035] Then push the cover 200 to deflect relative to the mounting base 100, and the rotating arm 201 to rotate relative to the boss 101. After adjusting the angle of the smoke detector body 300, turn the knob 204 so that the knob 204 is pressed against the surface of the boss 101, thereby keeping the cover 200 at the current angle.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ceiling-mounted fire smoke detector, comprising a mounting base (100), characterized in that: The mounting base (100) is hinged to the top of a cover (200), a smoke detector body (300) is inserted inside the cover (200), buckles (400) are arranged in an array at the edge of the cover (200), a reinforcing component (500) is threaded on the circumferential surface of the cover (200), wiring channels (600) are provided on the mounting base (100) and the cover (200), and a mounting component (700) is provided at the bottom of the mounting base (100). A boss (101) is fixedly installed at the top center of the mounting base (100). The lower half of the boss (101) has a rectangular cross-section, and the upper half of the boss (101) has a semi-circular cross-section. Two rotating arms (201) are fixedly installed at the bottom of the cover (200). A rotating shaft (202) is fixedly installed on the opposite side of the bottom end of the two rotating arms (201). The rotating shaft (202) is rotatably connected to the boss (101). A nut (203) is fixedly installed on one of the rotating arms (201), and a knob (204) is internally threaded onto the nut (203). The knob (204) passes through the rotating arm (201) and fits against the boss (101). The reinforcing component (500) includes a threaded ring (501) threaded to the outside of the cover (200), a horn ring (502) fixedly installed on the top of the threaded ring (501), the inner diameter of the horn ring (502) gradually increases from bottom to top, and a compression ring (503) fixedly installed in the middle of the inner wall of the horn ring (502), the compression ring (503) adhering to the surface of the inclined protrusion (401); The wiring channel (600) includes a U-shaped groove (601) opened at the bottom of the mounting base (100), the U-shaped groove (601) extends through to the circumferential surface of the mounting base (100), and a through hole (602) is opened through the center of the mounting base (100), the through hole (602) communicating with the U-shaped groove (601); The boss (101) is provided with a threading cavity (603), and the top of the boss (101) is provided with an arc-shaped groove (604), which is connected to the threading cavity (603). The cover (200) is provided with a through hole (605) at the center. The mounting assembly (700) includes four extension strips (701) rotatably connected to the bottom of the mounting base (100). The free ends of the extension strips (701) are provided with mounting holes (702). The bottom of the mounting base (100) is provided with four receiving grooves (703). The extension strips (701) are located inside the receiving grooves (703).

2. A ceiling-mounted fire smoke detector according to claim 1, characterized in that: The buckle (400) includes an inclined protrusion (401) fixedly installed on the top edge of the rotating arm (201). The inclined protrusion (401) is inclined outward, and a V-shaped protrusion (402) is provided on the side of the inclined protrusion (401) facing the center of the cover (200). The V-shaped protrusion (402) fits against the surface of the smoke detector body (300).

3. A ceiling-mounted fire smoke detector according to claim 1, characterized in that: Double-sided adhesive tape (704) is fixedly installed at the bottom of the mounting base (100).

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