High sensitivity smoke alarm

Abstract

The utility model discloses a high -sensitive smoke alarm, including detector body, the detector body top is equipped with the air inlet frame, the air inlet frame inboard is fixed with annular filter screen through the elastic part, the air inlet frame outside peripheral surface is equipped with a plurality of annular distribution's openwork hole, the detector body top is fixedly connected with the connecting ring, the connecting ring both sides symmetry is installed arc part, the air inlet frame inner wall symmetry both sides all are fixedly connected with the clamping block, the arc part outside bottom end is equipped with the slot for the clamping block sliding, the connecting ring outer wall is located the inside place of slot and is equipped with the arch, the utility model discloses a detachable structure is established to the air inlet frame and detector casing, and the connecting mode of air inlet frame and casing adopts quick -release structure, simultaneously, annular filter screen adopts elastic part and is fixed in the air inlet frame inboard, also is convenient to dismantle, thereby is convenient to the timely replacement of annular filter screen subsequently, guarantees the fluency of flue gas passing.

Description

Technical Field

[0001] This utility model relates to the field of smoke detector technology, and in particular to a highly sensitive smoke alarm. Background Technology

[0002] A smoke detector is a fire detection device. Currently, smoke detectors are the most widely used and numerous detectors in the world. They are widely used in homes, shopping malls, hotels, office buildings, dance halls, warehouses and other places. Because smoke is relatively light, smoke detectors are usually installed on the ceiling for better detection of smoke.

[0003] Smoke enters the smoke detector through the air inlet. A filter is usually installed at the air inlet to prevent dust and impurities from entering. However, over time, a lot of dirt will adhere to the surface of the filter, which is difficult to clean and needs to be replaced. However, the existing filter is usually located inside the smoke detector housing, which is troublesome to disassemble. At the same time, the existing smoke detectors are usually fixed to the ceiling with screws, which is laborious and does not make subsequent disassembly and maintenance difficult.

[0004] Therefore, those skilled in the art have provided highly sensitive smoke detectors to address the problems mentioned in the background section. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly sensitive smoke alarm.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-sensitivity smoke detector includes a detector body. The detector body has an air intake frame at the top. An annular filter is fixed inside the air intake frame by an elastic element. Multiple annularly distributed perforated holes are opened around the outer perimeter of the air intake frame.

[0008] A connecting ring is fixed to the top of the detector body, and arc-shaped parts are symmetrically installed on both sides of the connecting ring. A locking block is fixed to both sides of the inner wall of the air intake frame. A slot for the locking block to slide is opened at the bottom of the outer side of the arc-shaped part, and an arch is provided on the outer wall of the connecting ring at the inner side of the slot.

[0009] Preferably, the connecting ring has cut-outs on both sides of the arc-shaped portion.

[0010] Preferably, the outer circumference of the arc-shaped portion is the same as the inner diameter of the air intake frame, and the inner end of the card block can slide against the outer wall of the connecting ring.

[0011] Preferably, the elastic element is composed of a vertical rod and a U-shaped clip. The vertical rod is fixed to both sides of the top of the air intake frame. The U-shaped clip is fixed to the side of the vertical rod, and the two U-shaped clips are symmetrically arranged. The bottom of the U-shaped clip is provided with a barb. The upper and lower ends of the annular filter screen are both equipped with metal rings, and the top of the barb hooks the bottom of the lower metal ring. The bottom of the barb is connected to a toggle block.

[0012] Preferably, a positioning disk is connected to the bottom of the detector body, and an installation disk is provided below the positioning disk. The top of the installation disk has two symmetrical arc-shaped blocks on both sides, and the sides of the arc-shaped blocks have hanging holes. Positioning blocks are symmetrically installed on both sides of the bottom of the positioning disk, and positioning columns are fixedly connected to the sides of the positioning blocks, and the positioning columns are slidably connected in the hanging holes.

[0013] Preferably, an opening is provided on one side of the top of the suspension hole, and a slot is provided on the other side of the top of the suspension hole.

[0014] Preferably, grooves are provided on both sides of the bottom end of the mounting plate, and double-sided adhesive is adhered in the grooves.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model features a detachable structure for the air intake frame and detector housing, with a quick-release connection between the air intake frame and the housing. Additionally, the annular filter is fixed to the inside of the air intake frame using an elastic element, which also facilitates disassembly. This allows for timely replacement of the annular filter and ensures smooth passage of flue gas.

[0017] 2. The detector body and the mounting plate are suspended, which makes installation simple and prevents it from falling off easily, facilitating disassembly and maintenance of the detector later. Attached Figure Description

[0018] To illustrate the technical solutions in the embodiments of the present invention or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the building smoke detector proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the annular filter installation structure proposed in this utility model;

[0021] Figure 3 The present utility model proposes Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the connecting ring installation structure proposed in this utility model;

[0023] Figure 5 This is a schematic diagram of the connecting ring structure proposed in this utility model;

[0024] Figure 6 This is a schematic diagram of the positioning disk structure proposed in this utility model;

[0025] Figure 7 This is a schematic diagram of the arc-shaped block installation structure proposed in this utility model;

[0026] Figure 8 This is a schematic diagram of the double-sided adhesive installation structure proposed in this utility model.

[0027] In the diagram: 1. Detector body; 2. Air intake frame; 3. Annular filter; 4. Hollow hole; 5. Connecting ring; 6. Arc-shaped part; 7. Locking block; 8. Groove; 9. Arch; 10. Break; 11. Upright pole; 12. U-shaped clamp; 13. Barb; 14. Actuating block; 15. Positioning plate; 16. Mounting plate; 17. Arc-shaped block; 18. Hanging hole; 181. Opening; 182. Slot; 19. Positioning block; 20. Positioning post; 21. Groove; 22. Double-sided adhesive. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figure 1-7 A high-sensitivity smoke detector includes a detector body 1. The top of the detector body 1 is provided with an air intake frame 2. An annular filter screen 3 is fixed inside the air intake frame 2 by an elastic element. Multiple annularly distributed hollow holes 4 are opened around the outer periphery of the air intake frame 2.

[0030] A connecting ring 5 is fixed to the top of the detector body 1. Arc-shaped parts 6 are symmetrically installed on both sides of the connecting ring 5. A locking block 7 is fixed to both sides of the inner wall of the air intake frame 2. A slot 8 for the locking block 7 to slide is opened at the bottom of the outer side of the arc-shaped part 6. An arch 9 is provided on the outer wall of the connecting ring 5 at the inner side of the slot 8.

[0031] The above-mentioned technical solution involves placing the air intake frame 2 over the outside of the connecting ring 5. Rotating the air intake frame 2 causes the locking block 7 to slide into the slot 8 and engage between the inner wall of one end of the slot 8 and the arch 9. When the arch 9 is not subjected to corresponding rotational force, the locking block 7 will not easily disengage between the arch 9 and the end of the slot 8. At this time, the air intake frame 2 cannot be easily rotated. Under active force rotation, the locking block 7 can slide outward from the slot 8. When passing the arch 9, it will squeeze the arch 9, causing the connecting ring 5 to deform inward at that position until the locking block 7 disengages. This method facilitates quick disassembly of the air intake frame 2, thereby making it convenient to replace its internal annular filter 3 and maintain smooth airflow.

[0032] The connecting ring 5 has cutouts 10 on both sides of the arc-shaped portion 6;

[0033] The purpose of the above-mentioned technical solution, which includes opening the break 10, is to facilitate the better deformation and reset of the arch when the locking block 7 slides and squeezes it.

[0034] The outer circumference of the arc-shaped part 6 is the same as the inner diameter of the air intake frame 2, and the inner end of the locking block 7 can slide against the outer wall of the connecting ring 5.

[0035] The above-mentioned technical solution allows the outer side of the arc-shaped part 6 to fit against the inner wall of the air intake frame 2, facilitating the positioning, installation, and rotation of the air intake frame 2, and enabling the locking block 7 to slide smoothly into the slot 8.

[0036] The elastic element consists of a vertical rod 11 and a U-shaped clip 12. The vertical rod 11 is fixed to both sides of the top of the air intake frame 2. The U-shaped clip 12 is fixed to the side of the vertical rod 11, and the two U-shaped clips 12 are symmetrically arranged. The bottom of the U-shaped clip 12 is provided with a barb 13. The upper and lower ends of the annular filter screen 3 are both equipped with metal rings, and the top of the barb 13 hooks onto the bottom of the lower metal ring. The bottom of the barb 13 is connected to a toggle block 14.

[0037] The above-mentioned technical solution allows the U-shaped clip 12 to deform. By moving the actuating block 14 closer to the center of the air intake frame 2, the barb 13 can be disengaged from the ground of the annular filter screen 3, thereby allowing the annular filter screen 3 to be removed from the air intake frame 2 for easy filter replacement.

[0038] The bottom of the detector body 1 is connected to a positioning plate 15, and a mounting plate 16 is provided below the positioning plate 15. The top of the mounting plate 16 has two symmetrical arc-shaped blocks 17 on both sides. The sides of the arc-shaped blocks 17 are provided with hanging holes 18. Positioning blocks 19 are symmetrically installed on both sides of the bottom of the positioning plate 15. Positioning posts 20 are fixed to the sides of the positioning blocks 19 and are slidably connected to the hanging holes 18. The top of the hanging hole 18 has an opening 181 on one side and a slot 182 on the other side.

[0039] The technical solutions adopted above, such as Figure 7As shown, the positioning pins 20 on both sides of the bottom end of the positioning plate 15 are inserted into the hanging holes 18 on the arc block 17 through the opening 181. The detector body 1 is rotated so that the positioning pins 20 are rotated to the position of the slot 182. When the mounting plate 16 is fixed to the ceiling, the positioning pins 20 slide into the slot 182 due to gravity. At this time, without the action of vertical force, the positioning pins 20 cannot return to the hanging holes 18, so that the detector body 1 cannot rotate, thus completing its suspension and fixation.

[0040] The main design drawing of the device in this application shows the inverted state during normal installation.

[0041] Meanwhile, the positioning plate 15 is connected to the detector body 1 through multiple connecting blocks, and there is also a gap between the positioning plate 15 and the mounting plate 16. Therefore, it can play a certain role in preventing moisture from entering the detector body 1 from the ceiling.

[0042] Both sides of the bottom end of the mounting plate 16 are provided with grooves 21, and double-sided adhesive 22 is glued in the grooves 21.

[0043] The above-mentioned technical solution allows the mounting plate 16 to adhere to the ceiling via double-sided adhesive 22, eliminating the need for drilling and simplifying the installation process. Additionally, as shown in the attached... Figure 7 As shown, mounting plate 16 also has screw holes around its perimeter, allowing for installation with screws on special wall surfaces.

[0044] Working principle:

[0045] When installing the detector body 1, the mounting plate 16 is attached to the ceiling with double-sided adhesive 22. Then, the two positioning pins 20 on the positioning plate 15 are inserted into the hanging holes 18 through the openings of the arc-shaped block 17. The detector body 1 is then rotated at a certain angle to make the positioning pins 20 slide to the position of the slot 182. Then, due to gravity, the positioning pins 20 slide into the slot 182, thus completing the suspension installation of the detector body 1. In the future, due to long-term use, a lot of dirt will adhere to the surface of the annular filter 3. When it needs to be replaced, the detector body 1 is removed. By rotating the air intake frame 2, the locking block 7 is disengaged from the slot 8 of the arc-shaped part 6. When the locking block 7 passes the arch 9, it will squeeze the arch 9 and deform it towards the inside of the connecting ring 5 until the locking block 7 is disengaged and the arch 9 returns to its position. This method facilitates the quick installation and removal of the air intake frame 2.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-sensitivity smoke alarm, comprising a detector body (1), characterized in that, The detector body (1) has an air intake frame (2) at the top. An annular filter (3) is fixed inside the air intake frame (2) by an elastic element. Multiple annularly distributed hollow holes (4) are opened around the outer periphery of the air intake frame (2). The detector body (1) has a connecting ring (5) fixed to its top end. Arc-shaped parts (6) are symmetrically installed on both sides of the connecting ring (5). The air intake frame (2) has a locking block (7) fixed to both sides of its inner wall. The bottom of the outer side of the arc-shaped part (6) has a slot (8) for the locking block (7) to slide. The outer wall of the connecting ring (5) has an arch (9) located inside the slot (8).

2. The highly sensitive smoke detector according to claim 1, characterized in that, The connecting ring (5) has cuts (10) on both sides of the arc-shaped part (6).

3. The highly sensitive smoke detector according to claim 1, characterized in that, The outer diameter of the arc-shaped part (6) is the same as the inner diameter of the air intake frame (2), and the inner end of the card block (7) can slide against the outer wall of the connecting ring (5).

4. The highly sensitive smoke detector according to claim 1, characterized in that, The elastic element is composed of a vertical rod (11) and a U-shaped clip (12). The vertical rod (11) is fixed to both sides of the top of the air intake frame (2). The U-shaped clip (12) is fixed to the side of the vertical rod (11), and the two U-shaped clips (12) are symmetrically arranged. The bottom of the U-shaped clip (12) is provided with a barb (13). The upper and lower ends of the annular filter screen (3) are both equipped with metal rings, and the top of the barb (13) hooks onto the bottom of the lower metal ring. The bottom of the barb (13) is connected to a toggle block (14).

5. The highly sensitive smoke detector according to claim 1, characterized in that, The detector body (1) is connected to a positioning disk (15) at the bottom. A mounting disk (16) is provided below the positioning disk (15). The mounting disk (16) has symmetrical arc-shaped blocks (17) on both sides of the top. The arc-shaped blocks (17) have hanging holes (18) on their sides. Positioning blocks (19) are symmetrically installed on both sides of the bottom of the positioning disk (15). Positioning posts (20) are fixed to the sides of the positioning blocks (19) and are slidably connected to the hanging holes (18).

6. The highly sensitive smoke detector according to claim 5, characterized in that, An opening (181) is provided on one side of the top of the suspension hole (18), and a slot (182) is provided on the other side of the top of the suspension hole (18).

7. The highly sensitive smoke detector according to claim 5, characterized in that, The mounting plate (16) has grooves (21) on both sides of its bottom end, and double-sided adhesive (22) is bonded in the grooves (21).

Images