Quick release smoke detector

Abstract

The utility model relates to smoke detector technical field, and disclose a quick release type smoke detector, including smoke detector body, the surface fixedly connected with extension side board of smoke detector body, the bottom of extension side board is connected with the top cover, the top of top cover is equipped with the locating slot, the bottom of top cover is equipped with the clamping groove, the bottom fixedly connected with the installation platform of top cover, the inner wall of installation platform is equipped with the sliding slot, the inside sliding connection of sliding slot has the annular plate, the bottom fixedly connected with reset spring of annular plate. The utility model discloses through setting extension side board, locating slot, clamping groove, annular plate and reset spring, first insert extension side board into locating slot and press down when installing, and after the compression reset spring, rotates the detector to make extension side board under the automatic card of elastic force in clamping groove, realizes the single -handed quick disassembly of detector and top cover, is convenient for the subsequent removal overhaul and replacement work.

Description

Technical Field

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

[0002] A smoke detector is a fire-fighting electronic device that monitors smoke particles in the air in real time and issues an alarm. Using photoelectric scattering or ion sensing technology, when smoke enters the detection chamber, interference with the optical path or changes in ionization current trigger a signal. After amplification and judgment, an audible and visual alarm is activated. It can also be linked to sprinkler, smoke exhaust, or building control systems. Its casing is high-temperature resistant and flame-retardant, powered by a built-in battery or bus, and features self-testing, low-voltage alerts, and insect-proof mesh designs. It is widely used in residences, shopping malls, subways, data centers, and other places, providing crucial protection for early fire detection and reducing casualties and property damage.

[0003] Current smoke detectors and their bases are generally fixed with threads or clips. During installation, the device must be lifted with both hands and rotated several times, or it can be directly clipped in place. When disassembling and replacing the smoke detector later, it requires the use of various tools, especially at high altitudes, which wastes a lot of time during the disassembly and assembly process. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a quick-release smoke detector, including a smoke detector body, an extended side plate fixedly connected to the surface of the smoke detector body, a top cover snapped into the bottom of the extended side plate, a positioning groove on the top of the top cover, a slot on the bottom of the top cover, a mounting platform fixedly connected to the bottom of the top cover, a sliding groove on the inner wall of the mounting platform, an annular plate slidably connected inside the sliding groove, and a return spring fixedly connected to the bottom of the annular plate.

[0005] The above technical solution, by setting up a smoke detector body, an extension side plate, a top cover, a positioning groove, a slot, a mounting platform, a sliding groove, an annular plate, and a return spring, forms a quick disassembly and assembly mechanism of insertion-pressing-rotation-locking. During installation, the extension side plate is first guided by the positioning groove, and after compressing the return spring, it rotates to the bottom of the slot. Under the action of the spring's rebound force, it automatically completes the locking. During disassembly, it can be released by rotating in the opposite direction. Disassembly and assembly can be completed without tools, which facilitates subsequent replacement and maintenance work.

[0006] As a further improvement to the above solution, two extension side plates are provided, and the two extension side plates are evenly distributed on the surface with respect to the center of the bottom of the smoke detector body.

[0007] The above technical solution involves symmetrically arranging extended side plates on both sides of the smoke detector body to ensure balanced force on the detector, maintain stability during rotation and locking, and prevent unilateral force from causing the locking to become skewed or loose.

[0008] As a further improvement to the above solution, the extended side plate is adapted to the positioning groove and the card slot.

[0009] Through the above technical solution, the extended side plate cooperates with the positioning groove and the locking groove. First, the positioning groove guides the insertion, and then the locking groove completes the locking, forming a double guiding structure, which improves the assembly accuracy and stability.

[0010] As a further improvement to the above solution, the number of reset springs is set to several, and the several reset springs are evenly distributed on the surface with respect to the center of the bottom of the annular plate.

[0011] Through the above technical solution, multiple return springs are evenly arranged at the bottom of the annular plate to provide multi-point synchronous support force, so that the annular plate rebounds smoothly, the extended side plates are subjected to consistent force, and local stress concentration is avoided, which may lead to jamming failure.

[0012] As a further improvement to the above solution, the top of the annular plate is provided with a through hole, and the bottom of the top cover is fixedly connected with a limit post.

[0013] Through the above technical solution, the annular plate has a through hole and slides with the limiting post, which restricts the annular plate to move only along the axial direction of the slide groove, prevents rotational deviation, and ensures that the annular plate and the top cover are always coaxial.

[0014] As a further improvement to the above solution, the limiting post penetrates the bottom of the through hole, and the bottom of the limiting post is fixedly connected to the bottom of the inner wall of the mounting platform.

[0015] Through the above technical solution, the limiting post passes through the through hole and is fixed to the bottom of the mounting platform, forming a rigid guide post that both supports the annular plate and limits its stroke, preventing the return spring from being over-compressed or dislodged.

[0016] As a further improvement to the above solution, the bottom of the mounting platform is fixedly connected with a bolt, the bottom of the bolt is threaded with a nut, and a washer is fitted onto the surface of the bolt.

[0017] With the above technical solution, the bottom of the mounting platform is connected to the ceiling by bolts, nuts and washers. The washers disperse the locking force of the nuts, prevent the mounting platform from deforming, and ensure that the detector is installed firmly and is easy to install and remove.

[0018] As a further improvement to the above solution, the number of bolts is set to several, and the several bolts are evenly distributed on the surface symmetrically about the center of the bottom of the mounting platform, and the washer is located between the nut and the mounting platform.

[0019] The above technical solution involves symmetrically distributing multiple bolts to ensure uniform stress on the mounting platform, reduce single-point stress, and improve overall seismic performance. Washers are placed between the nuts and the mounting platform to prevent loosening and protect the surface.

[0020] Compared with the prior art, the beneficial effects of this utility model are: This utility model, by setting an extension side plate, a positioning groove, a slot, an annular plate and a return spring, allows for quick one-handed assembly and disassembly of the detector and top cover by first inserting the extension side plate into the positioning groove and pressing it down, then rotating the detector after compressing the return spring. This enables the extension side plate to automatically snap into the slot under the action of the elastic force, facilitating subsequent disassembly, inspection and replacement work.

[0021] This invention features a limiting post and a through hole. During rotation, the extended side plate touches the limiting post, indicating that it is aligned with the slot position. This provides a positioning indicator, avoids excessive rotation or misalignment, and ensures more precise engagement. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the overall device of this utility model; Figure 4 This is a schematic diagram of the bottom structure of the top cover of this utility model; Figure 5 This is a schematic diagram of the overall connection structure of the annular plate of this utility model.

[0023] In the diagram: 1. Smoke detector body; 2. Extended side plate; 3. Top cover; 4. Positioning groove; 5. Slot; 6. Mounting platform; 7. Slide groove; 8. Annular plate; 9. Return spring; 10. Through hole; 11. Limiting post; 12. Bolt; 13. Nut; 14. Washer. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Example: Please combine Figure 1-5This embodiment of a quick-release smoke detector includes a smoke detector body 1. An extension side plate 2 is fixedly connected to the surface of the smoke detector body 1. A top cover 3 is snapped into the bottom of the extension side plate 2. A positioning groove 4 is provided on the top of the top cover 3, and a slot 5 is provided on the bottom of the top cover 3. A mounting platform 6 is fixedly connected to the bottom of the top cover 3. A sliding groove 7 is provided on the inner wall of the mounting platform 6. An annular plate 8 is slidably connected inside the sliding groove 7. A return spring 9 is fixedly connected to the bottom of the annular plate 8. Pressing down causes the extension side plate 2 to press against the annular plate 8, and the annular plate 8 slides inside the sliding groove 7, squeezing the return spring 9. When the extension side plate 2 is below the top cover 3, rotating the smoke detector body 1 causes the extension side plate 2 to move below the slot 5. Releasing the pressing force of the smoke detector body 1 causes the extension side plate 2 to snap into the slot 5 under the action of the return spring 9.

[0026] There are two extension side plates 2, which are evenly distributed on the surface with the bottom center of the smoke detector body 1 symmetrically arranged.

[0027] The extended side plate 2 is adapted to the positioning groove 4 and the card slot 5.

[0028] The number of reset springs 9 is set to several, and the several reset springs 9 are evenly distributed on the surface with respect to the bottom center of the annular plate 8.

[0029] The top of the annular plate 8 has a through hole 10, and the bottom of the top cover 3 is fixedly connected to a limiting post 11. When the extension side plate 2 is rotated by the smoke detector body 1, the extension side plate 2 contacts the surface of the limiting post 11. At this time, the limiting post 11 is located below the slot 5. The position of the extension side plate 2 is limited by the limiting post 11, and it can be accurately moved to the bottom of the slot 5.

[0030] The limiting post 11 penetrates the bottom of the through hole 10, and the bottom of the limiting post 11 is fixedly connected to the bottom of the inner wall of the mounting platform 6.

[0031] The bottom of the mounting platform 6 is fixedly connected with a bolt 12, the bottom of the bolt 12 is threaded with a nut 13, and a washer 14 is fitted onto the surface of the bolt 12.

[0032] The number of bolts 12 is set to several, and the bolts 12 are evenly distributed on the surface symmetrically around the bottom center of the mounting platform 6. The washer 14 is located between the nut 13 and the mounting platform 6.

[0033] The implementation principle of a quick-release smoke detector in this embodiment is as follows: When installing the smoke detector body 1, the mounting platform 6 is first fixed to the top of the ceiling by bolts 12 and nuts 13. The extension side plate 2 is snapped into the positioning groove 4. Then, it is pressed down to press the extension side plate 2 against the annular plate 8. Simultaneously, the annular plate 8 slides inside the sliding groove 7 and squeezes the return spring 9. When the extension side plate 2 is below the top cover 3, the smoke detector body 1 is rotated so that the extension side plate 2 moves below the slot 5. The pressing force of the smoke detector body 1 is released, and the extension side plate 2 is snapped into the slot 5 under the action of the return spring 9. The top of the annular plate 8 contacts the bottom of the top cover 3, and the smoke detector body 1 is fixed.

[0034] When the extension side plate 2 is rotated through the smoke detector body 1, the extension side plate 2 comes into contact with the surface of the limiting post 11. At this time, the limiting post 11 is located below the slot 5. The position of the extension side plate 2 is limited by the limiting post 11, and it can be accurately moved to the bottom of the slot 5.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A quick-release smoke detector, characterized in that: The smoke detector includes a smoke detector body (1), an extension side plate (2) is fixedly connected to the surface of the smoke detector body (1), a top cover (3) is snapped into the bottom of the extension side plate (2), a positioning groove (4) is opened on the top of the top cover (3), a slot (5) is opened on the bottom of the top cover (3), a mounting platform (6) is fixedly connected to the bottom of the top cover (3), a sliding groove (7) is opened on the inner wall of the mounting platform (6), an annular plate (8) is slidably connected inside the sliding groove (7), and a return spring (9) is fixedly connected to the bottom of the annular plate (8).

2. The quick-release smoke detector according to claim 1, characterized in that: The number of the extended side plates (2) is set to two, and the two extended side plates (2) are evenly distributed on the surface with the bottom center of the smoke detector body (1) symmetrical.

3. A quick-release smoke detector according to claim 1, characterized in that: The extended side plate (2) is adapted to the positioning groove (4) and the card slot (5).

4. A quick-release smoke detector according to claim 1, characterized in that: The number of reset springs (9) is set to several, and the several reset springs (9) are evenly distributed on the surface with the bottom center of the annular plate (8) symmetrical.

5. A quick-release smoke detector according to claim 1, characterized in that: The top of the annular plate (8) has a through hole (10), and the bottom of the top cover (3) is fixedly connected to a limit post (11).

6. A quick-release smoke detector according to claim 5, characterized in that: The limiting post (11) penetrates the bottom of the through hole (10), and the bottom of the limiting post (11) is fixedly connected to the bottom of the inner wall of the mounting platform (6).

7. A quick-release smoke detector according to claim 1, characterized in that: The bottom of the mounting platform (6) is fixedly connected with a bolt (12), the bottom of the bolt (12) is threaded with a nut (13), and a washer (14) is fitted on the surface of the bolt (12).

8. A quick-release smoke detector according to claim 7, characterized in that: The number of bolts (12) is set to several, and the bolts (12) are evenly distributed on the surface with the bottom center of the mounting platform (6) symmetrically. The washer (14) is located between the nut (13) and the mounting platform (6).

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