Adjustable mounting bracket for smoke detectors

The adjustable mounting bracket design solves the problem of inconvenient angle adjustment of smoke detectors, enabling quick fixing and precise angle adjustment, thus improving the flexibility and stability of installation.

CN224516358UActive Publication Date: 2026-07-17TIAN & CONSTR & INSTALLATION ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIAN & CONSTR & INSTALLATION ENG CO LTD
Filing Date
2025-07-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Most existing smoke detectors are installed in a fixed manner, which makes angle adjustment inconvenient, disassembly and assembly cumbersome, and affects maintenance efficiency and practicality.

Method used

An adjustable mounting bracket is used, and the smoke detector can be flexibly installed and its angle adjusted through the cooperation of the clamping sleeve, the limiting sleeve and the adjustment mechanism. Precise adjustment is achieved by using the meshing transmission of the slot, the buckle and the gear plate.

Benefits of technology

It enables rapid fixing and precise angle adjustment of smoke detectors, improving installation flexibility and stability, reducing maintenance workload, and increasing efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224516358U_ABST
    Figure CN224516358U_ABST
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Abstract

This utility model relates to the field of fire protection equipment installation technology, and discloses an adjustable mounting bracket for smoke detectors, including a support shell. A retaining cylinder is fixedly connected to the outer wall of the support shell. Multiple ball grooves are formed on the inner wall of the retaining cylinder. A buckle is slidably connected to the outer wall of the retaining cylinder. A spring is fixedly connected to the front side of the buckle. A sliding ball is slidably connected to the inner wall of the ball grooves. A limiting cylinder is slidably connected to the inner wall of the retaining cylinder. Multiple slots are formed on the inner wall of the limiting cylinder. A connecting plate is fixedly connected to the outer wall of the limiting cylinder. A handle is fixedly connected to the outer wall of the connecting plate. In this utility model, the components cooperate with each other. The retaining cylinder and the limiting cylinder slide, the multiple ball grooves on the inner wall of the retaining cylinder slide relative to the sliding ball, and the slots on the limiting cylinder are rotatably connected to the buckle. The handle on the connecting plate pushes the limiting cylinder to slide within the retaining cylinder. Simultaneously, the spring on the base plate deforms.
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Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment installation technology, and in particular to an adjustable mounting bracket for smoke detectors. Background Technology

[0002] Smoke detectors, as key fire prevention equipment, provide early warning of fires by monitoring smoke concentration. Their internal ionization smoke sensors are technologically advanced and operate stably and reliably, making them widely used in various fire alarm systems. To ensure the accurate functioning of smoke detectors, the appropriateness of their installation location and angle is crucial, leading to the development of adjustable mounting brackets.

[0003] In existing technologies, smoke detectors are installed in various ways. Some of these methods use brackets that are fixed to the wall. While existing smoke detector brackets are simple to operate, they mostly employ a fixed installation structure. When the detection angle of the smoke detector needs to be adjusted, the entire device must be disassembled and reinstalled. Workers often use tape, glue, or screws to fix the support shell of the smoke detector to the wall. When cleaning or repairing the detector, disassembly and reassembly are very inconvenient, time-consuming, and labor-intensive, affecting performance, increasing the workload of operation and maintenance, and reducing practicality, maintenance efficiency, and overall utilization efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an adjustable mounting bracket for smoke detectors, which aims to improve the problems of existing technologies that cannot be moved and have difficulty changing the working range.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable mounting bracket for a smoke detector, comprising a support shell, a retaining cylinder fixedly connected to the outer wall of the support shell, multiple ball grooves formed on the inner wall of the retaining cylinder, a buckle slidably connected to the outer wall of the retaining cylinder, a spring fixedly connected to the front side of the buckle, a sliding ball slidably connected to the inner wall of the ball groove, a limiting cylinder slidably connected to the inner wall of the retaining cylinder, multiple retaining grooves formed on the inner wall of the limiting cylinder, a connecting plate fixedly connected to the outer wall of the limiting cylinder, a handle fixedly connected to the outer wall of the connecting plate, and an adjustment mechanism fixedly connected to the bottom of the support shell, the adjustment mechanism being used to adjust the angle.

[0006] As a further description of the above technical solution:

[0007] The adjusting mechanism includes a connecting block, the top of which is fixedly connected to the bottom of the support shell. A gear disk is fixedly connected to the bottom of the connecting block. Multiple locking blocks are meshed on the inner wall of the gear disk. A rotating chuck is fixedly connected to the outer wall of the locking blocks. A limiting disk is fixedly connected to the outer wall of the rotating chuck. Movable disks are fixedly connected to both the left and right sides of the limiting disk. A connecting rod is rotatably connected to the inner wall of the movable disk. A support rod is fixedly connected to the bottom of the movable disk.

[0008] As a further description of the above technical solution:

[0009] A base is fixedly connected to the inner wall of the support shell, and a smoke sensor is fixedly connected to the top of the base.

[0010] As a further description of the above technical solution:

[0011] A protective shell is fixedly connected to the top of the supporting shell, and multiple support blocks are fixedly connected to the top of the protective shell.

[0012] As a further description of the above technical solution:

[0013] A protective plate is fixedly connected to the top of the support block, and multiple exhaust grooves are provided on the inner wall of the protective shell.

[0014] As a further description of the above technical solution:

[0015] The inner wall of the support shell is fixedly connected to the left and right sides of the base plate, and the outer wall of the base plate is fixedly connected to the outer wall of the clamping cylinder.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the connecting block is provided with a weight-reducing groove, and the bottom of the support rod is fixedly connected to a chassis.

[0018] As a further description of the above technical solution:

[0019] The inner wall of the chassis is provided with multiple fixing grooves, and the outer wall of the slider is slidably connected to the inner wall of the groove.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the parts cooperate with each other, and the clamping cylinder and the limiting cylinder slide. Multiple ball grooves on the inner wall of the clamping cylinder slide relative to the sliding ball. The clamping groove on the limiting cylinder is rotatably connected to the buckle. The lever on the connecting plate pushes the limiting cylinder to slide in the clamping cylinder. At the same time, the spring on the base plate deforms, causing the buckle to move in the clamping groove. The sliding ball slides in the ball groove, and the buckle engages with different clamping grooves at the same time, thereby fixing the relative position of the limiting cylinder and the clamping cylinder, and thus adjusting the installation position of the smoke detector.

[0022] 2. In this utility model, the adjustment mechanism firstly achieves angle adjustment by utilizing various parts. The connecting block is connected to the support shell, and then multiple locking blocks mesh with the gear disk. The locking blocks are fixed on the rotating chuck for transmission. When the movable disk is rotated, it drives the support rod to rotate synchronously. When the movable disk rotates, it drives the rotating chuck to rotate through the limit disk, causing the locking blocks to mesh and move along the inner wall of the gear disk. By utilizing the meshing motion between the gear disk and the locking blocks, the tilt angle of the smoke detector can be precisely adjusted, ensuring that the equipment maintains the best monitoring posture in different scenarios. Attached Figure Description

[0023] Figure 1 This is a front perspective view of the adjustable mounting bracket for the smoke detector proposed in this utility model.

[0024] Figure 2 This is a top view of the adjustable mounting bracket for the smoke detector proposed in this utility model;

[0025] Figure 3 This is a structural exploded view of the adjustable mounting bracket for the smoke detector proposed in this utility model;

[0026] Figure 4 This is a partial structural diagram of the adjustable mounting bracket for the smoke detector proposed in this utility model.

[0027] Figure 5 This is a partial structural exploded view of the adjustable mounting bracket for the smoke detector proposed in this utility model;

[0028] Figure 6 This is a partial structural diagram of the adjustable mounting bracket for the smoke detector proposed in this utility model.

[0029] Legend:

[0030] 1. Support shell; 2. Adjustment mechanism; 201. Support rod; 202. Movable plate; 203. Connecting rod; 204. Rotary chuck; 205. Locking block; 206. Gear plate; 207. Limiting plate; 208. Connecting block; 3. Base plate; 4. Locking sleeve; 5. Ball groove; 6. Spring; 7. Sliding ball; 8. Buckle; 9. Limiting sleeve; 10. Locking groove; 11. Connecting plate; 12. Handle; 13. Chassis; 14. Protective plate; 15. Supporting block; 16. Smoke sensor; 17. Protective shell; 18. Base; 19. Fixing groove; 20. Exhaust groove; 21. Weight reduction groove. Detailed Implementation

[0031] 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.

[0032] Please see the appendix Figure 1 and attached Figure 5 An embodiment of this utility model provides an adjustable mounting bracket for a smoke detector, comprising a support shell 1, a retaining cylinder 4 fixedly connected to the outer wall of the support shell 1, multiple ball grooves 5 formed on the inner wall of the retaining cylinder 4, a buckle 8 slidably connected to the outer wall of the retaining cylinder 4, a spring 6 fixedly connected to the front side of the buckle 8, a sliding ball 7 slidably connected to the inner wall of the ball grooves 5, a limiting cylinder 9 slidably connected to the inner wall of the retaining cylinder 4, multiple retaining grooves 10 formed on the inner wall of the limiting cylinder 9, a connecting plate 11 fixedly connected to the outer wall of the limiting cylinder 9, a handle 12 fixedly connected to the outer wall of the connecting plate 11, and an adjustment mechanism 2 fixedly connected to the bottom of the support shell 1 for adjusting the angle.

[0033] Specifically, the detector can be flexibly installed and its angle adjusted. The support shell 1 is quickly fixed by the cooperation of the clamping cylinder 4 and the limiting cylinder 9. The ball groove 5 on the inner wall of the clamping cylinder 4, together with the sliding ball 7, the buckle 8 and the spring 6, form a locking structure. Pressing the buckle 8 can make the sliding ball 7 disengage from the groove 10 of the limiting cylinder 9, so that the position of the limiting cylinder 9 can be adjusted by the handle 12 and the connecting plate 11. After releasing, the spring 6 returns to its original position to complete the locking, ensuring a stable installation.

[0034] Please see the appendix Figure 3 and attached Figure 6 The adjusting mechanism 2 includes a connecting block 208. The top of the connecting block 208 is fixedly connected to the bottom of the support shell 1. A gear disk 206 is fixedly connected to the bottom of the connecting block 208. Multiple locking blocks 205 are meshed on the inner wall of the gear disk 206. A rotating chuck 204 is fixedly connected to the outer wall of the locking block 205. A limiting disk 207 is fixedly connected to the outer wall of the rotating chuck 204. Movable disks 202 are fixedly connected to both the left and right sides of the limiting disk 207. A connecting rod 203 is rotatably connected to the inner wall of the movable disk 202. A support rod 201 is fixedly connected to the bottom of the movable disk 202.

[0035] Specifically, the adjustment mechanism 2 is used to flexibly adjust the angle of the smoke detector. The connecting block 208 fixes the support shell 1, and its gear disk 206 meshes with the locking block 205 on the rotating chuck 204 to form the basis for angle adjustment. When rotating, the rotating chuck 204 drives the locking block 205 to move along the gear disk 206. The limiting disk 207 prevents excessive rotation, and the movable disk 202 and connecting rod 203 enhance stability. The support rod 201 is fixed and connected to the mounting surface. By adjusting the meshing position, the detection angle can be precisely adjusted to adapt to different spaces, ensuring no blind spots in monitoring. Moreover, the locking structure ensures that the angle will not loosen after it is fixed, improving the stability and reliability of the equipment.

[0036] Please see the appendix Figure 2 and attached Figure 4 A base 18 is fixedly connected to the inner wall of the support shell 1, a smoke sensor 16 is fixedly connected to the top of the base 18, a protective shell 17 is fixedly connected to the top of the support shell 1, a plurality of support blocks 15 are fixedly connected to the top of the protective shell 17, a protective plate 14 is fixedly connected to the top of the support blocks 15, and a plurality of exhaust grooves 20 are opened on the inner wall of the protective shell 17.

[0037] Specifically, this part is the core component of the smoke detector. The base 18 inside the support shell 1 fixes the smoke sensor 16. The top protective shell 17, support block 15, and protective plate 14 prevent damage from foreign objects. The exhaust groove 20 ensures air circulation, ensures that smoke can enter smoothly, and improves the sensing sensitivity and equipment safety.

[0038] Please see the appendix Figure 1 and attached Figure 3 The inner wall of the support shell 1 is fixedly connected to the left and right sides of the base plate 3. The outer wall of the base plate 3 is fixedly connected to the outer wall of the clamping cylinder 4. The inner wall of the connecting block 208 is provided with a weight reduction groove 21. The bottom of the support rod 201 is fixedly connected to the chassis 13. The inner wall of the chassis 13 is provided with multiple fixing grooves 19. The outer wall of the sliding ball 7 is slidably connected to the inner wall of the clamping groove 10.

[0039] Specifically, the base plate 3 fixes the clamping cylinder 4 and the support shell 1, enhancing structural stability; the weight-reducing groove 21 on the connecting block 208 reduces weight; the chassis 13 and the fixing groove 19 facilitate installation and fixation; the sliding ball 7 and the clamping groove 10 slide together, ensuring smooth adjustment of the clamping cylinder 4 and the limiting cylinder 9, thus optimizing the overall stability and ease of operation of the bracket.

[0040] Working principle: First, the parts cooperate with each other. The clamping cylinder 4 and the limiting cylinder 9 slide. The multiple ball grooves 5 on the inner wall of the clamping cylinder 4 slide relative to the sliding ball 7. The clamping groove 10 on the limiting cylinder 9 is rotatably connected to the buckle 8. With the help of the lever 12 on the connecting plate 11, the limiting cylinder 9 is pushed to slide in the clamping cylinder 4. At the same time, the spring 6 on the base plate 3 deforms, causing the buckle 8 to move in the clamping groove 10. The sliding ball 7 slides in the ball groove 5. At the same time, the buckle 8 engages with different clamping grooves 10, thereby fixing the relative position of the limiting cylinder 9 and the clamping cylinder 4, and thus adjusting the installation position of the smoke detector.

[0041] First, the adjustment mechanism 2 achieves angle adjustment by utilizing various components. The connecting block 208 is connected to the support shell 1. Then, multiple locking blocks 205 mesh with the gear disk 206. The locking blocks 205 are fixed on the rotating chuck 204 for transmission. Rotating the movable disk 202 causes the support rod 201 to rotate synchronously. When the movable disk 202 rotates, it drives the rotating chuck 204 to rotate through the limit disk 207, causing the locking blocks 205 to mesh and move along the inner wall of the gear disk 206. By utilizing the meshing motion between the gear disk 206 and the locking blocks 205, the tilt angle of the smoke detector can be precisely adjusted, ensuring that the equipment maintains the best monitoring posture in different scenarios.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended 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 described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Adjustable mounting bracket for smoke detectors, comprising a support shell (1), characterized in that: The outer wall of the support shell (1) is fixedly connected to a retaining cylinder (4). The inner wall of the retaining cylinder (4) is provided with multiple ball grooves (5). The outer wall of the retaining cylinder (4) is slidably connected to a buckle (8). The front side of the buckle (8) is fixedly connected to a spring (6). The inner wall of the ball groove (5) is slidably connected to a sliding ball (7). The inner wall of the retaining cylinder (4) is slidably connected to a limiting cylinder (9). The inner wall of the limiting cylinder (9) is provided with multiple retaining grooves (10). The outer wall of the limiting cylinder (9) is fixedly connected to a connecting plate (11). The outer wall of the connecting plate (11) is fixedly connected to a handle (12). The bottom of the support shell (1) is fixedly connected to an adjustment mechanism (2). The adjustment mechanism (2) is used to adjust the angle.

2. The adjustable mounting bracket for a smoke detector of claim 1, wherein: The adjustment mechanism (2) includes a connecting block (208), the top of which is fixedly connected to the bottom of the support shell (1), a gear disk (206) is fixedly connected to the bottom of the connecting block (208), a plurality of locking blocks (205) are meshed on the inner wall of the gear disk (206), a rotating chuck (204) is fixedly connected to the outer wall of the locking block (205), a limiting disk (207) is fixedly connected to the outer wall of the rotating chuck (204), a movable disk (202) is fixedly connected to the left and right sides of the limiting disk (207), a connecting rod (203) is rotatably connected to the inner wall of the movable disk (202), and a support rod (201) is fixedly connected to the bottom of the movable disk (202).

3. The adjustable mounting bracket for a smoke detector of claim 1, wherein: The inner wall of the support shell (1) is fixedly connected to a base (18), and the top of the base (18) is fixedly connected to a smoke sensor (16).

4. The adjustable mounting bracket for a smoke detector of claim 1, wherein: The top of the support shell (1) is fixedly connected to a protective shell (17), and the top of the protective shell (17) is fixedly connected to multiple support blocks (15).

5. The adjustable mounting bracket for a smoke detector of claim 4, wherein: The top of the support block (15) is fixedly connected to a protective plate (14), and the inner wall of the protective shell (17) is provided with multiple exhaust grooves (20).

6. The adjustable mounting bracket for a smoke detector of claim 1, wherein: The inner wall of the support shell (1) is fixedly connected to the left and right sides of the base plate (3), and the outer wall of the base plate (3) is fixedly connected to the outer wall of the clamp (4).

7. The adjustable mounting bracket for a smoke detector of claim 2, wherein: The inner wall of the connecting block (208) is provided with a weight reduction groove (21), and the bottom of the support rod (201) is fixedly connected to the chassis (13).

8. The adjustable mounting bracket for a smoke detector of claim 7, wherein: The inner wall of the chassis (13) is provided with multiple fixing grooves (19), and the outer wall of the slider (7) is slidably connected to the inner wall of the slot (10).