Quick disassembly type smoke alarm mechanical shell
The design of the snap-fit assembly and limiting groove structure solves the problem that existing smoke alarm housings require tools to disassemble, achieving efficient, safe, and rapid disassembly and modular replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-07
AI Technical Summary
The disassembly of existing smoke detectors requires tools, which poses a safety hazard, especially when working at heights, and maintenance is inefficient at night.
It adopts a snap-fit assembly and a limiting groove structure, and achieves quick assembly and disassembly through the cooperation of the rotating knob and the limiting block. The outer shell is fixed by the rebound force of the spring, eliminating the need for tools.
It improves the safety and efficiency of high-altitude operations, enables tool-free disassembly and assembly, and its modular design allows for the individual replacement of damaged parts.
Smart Images

Figure CN224096257U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fire fighting equipment technical field, concretely is a quick detachable smoke alarm mechanical shell. BACKGROUND
[0002] The alarm is a kind of electronic product for preventing or preventing the consequences caused by certain event, to remind or warn us should take certain action in the form of sound, light, air pressure, etc., the existing alarm has time limit when using the inductive device, that is, there is timeliness, a period of time is replaced, to avoid the inductive device failure, so it needs to disassemble the shell body, to replace the inductive device in it, which requires shell to be conveniently assembled and disassembled.
[0003] The existing general locking is completed by bolt or buckle, or the way of combination, the effect is poor, the traditional screw fixing structure has serious tool dependency problem, must use the special specification cross screwdriver or hex wrench to disassemble, simultaneously, when high-altitude operation, such as 3m above ceiling installation position, tool is easy to slide and cause safety hazard, simultaneously, when night emergency maintenance, insufficient illumination can further reduce operating efficiency.
[0004] Based on this, a quick detachable smoke alarm mechanical shell is provided, which can eliminate the drawbacks of the existing device. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a quick detachable smoke alarm mechanical shell to solve the problems in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A quick detachable smoke alarm mechanical shell, comprising a base, the base is provided with a shell on one side, a plurality of buckle assemblies are arranged between the base and the shell;
[0008] The buckle assembly comprises a buckle column, one end of the buckle column is fixedly connected with the surface of the base, a spring groove is formed in the inner side of the buckle column, a through groove is formed in the upper end of the buckle column, a limiting groove is formed in the inner top side of the buckle column, a limiting block is slidably arranged in the inner side of the limiting groove, a connecting rod is fixedly connected to the upper end of the limiting block, a rotating knob is fixedly connected to the other end of the connecting rod, and one end of the rotating knob is arranged in the side of the shell.
[0009] On the basis of the above technical scheme, the utility model also provides the following optional technical scheme:
[0010] In an optional scheme, a spring is arranged in the inner side of the spring groove, and one end of the spring is fixedly connected with a pressing plate.
[0011] In an alternative, the through slot and the limiting slot are rectangular slots and are arranged corresponding to the shape of the limiting block.
[0012] In an alternative, the base is provided with a clamping assembly on one side.
[0013] In an alternative, the clamping assembly comprises a connecting plate, which is fixedly connected to one side of the base, and slide grooves are formed on both sides of the connecting plate, and a sliding block is slidably arranged in each slide groove, and the two sliding blocks are fixedly connected to the adjacent sides of the shell, respectively.
[0014] In an alternative, a sealing rubber pad is arranged in the slide groove and forms a sealing structure with the inner side of the shell.
[0015] In an alternative, a plurality of fixing holes are formed around the surface of the base.
[0016] In an alternative, the base is fixed to the corresponding wall surface through the fixing holes and a plurality of bolts.
[0017] Compared with the prior art, the present application has the following advantages:
[0018] The clamping assembly is arranged, and the fixing can be completed by one hand, thereby improving the safety of high-altitude operation. The shell is connected in a sliding manner, and is fixed by the limiting of the limiting block and the limiting slot to prevent the shell from sliding, thereby improving the efficiency of disassembly and assembly while ensuring the stability of the fixing, so that the smoke alarm can be quickly disassembled and assembled without tools, and the modular design allows the damaged parts to be replaced individually, thereby effectively improving the use effect of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the present application.
[0020] Figure 2 It is a schematic diagram of the base structure of the present application.
[0021] Figure 3 It is a schematic diagram of the shell structure of the present application.
[0022] Figure 4 It is a schematic diagram of the clamping assembly structure of the present application.
[0023] Legend of reference signs: 1, base; 2, fixing hole; 3, shell; 4, connecting plate; 5, slide groove; 6, sliding block; 7, rotating knob; 8, clamping column; 9, spring groove; 10, through slot; 11, limiting slot; 12, spring; 13, pressing plate; 14, limiting block; 15, connecting rod. DETAILED DESCRIPTION
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0025] In one embodiment, such as Figures 1-4 As shown, a quick-release smoke alarm mechanical housing includes a base 1, a housing 3 is provided on one side of the base 1, and a plurality of snap-fit components are provided between the base 1 and the housing 3.
[0026] The buckle assembly includes a buckle post 8, one end of which is fixedly connected to the surface of the base 1. A spring groove 9 is provided on the inner side of the buckle post 8, and a through groove 10 is provided through the upper end of the buckle post 8. A limiting groove 11 is provided on the inner top side of the buckle post 8, and a limiting block 14 is slidably provided on the inner side of the limiting groove 11. A connecting rod 15 is fixedly connected to the middle of the upper end of the limiting block 14, and a rotating knob 7 is fixedly connected to the other end of the connecting rod 15. One end of the rotating knob 7 is provided through one side of the outer shell 3.
[0027] In this embodiment, the rotating knob 7 is pressed in sequence to slide the limiting block 14 through the through groove 10 into the spring groove 9. At this time, rotating the rotating knob 7 will drive the limiting block 14 to rotate. At this time, the limiting block 14 coincides with the limiting groove 11 and is stopped by the spring 12 and enters the limiting groove 11, thereby locking and fixing the entire outer shell 3.
[0028] In one embodiment, such as Figure 4 As shown, a spring 12 is provided inside the spring groove 9, and a pressure plate 13 is fixedly connected to one end of the spring 12. The limiting block 14 is pushed into the limiting groove 11 by the rebound force of the spring 12.
[0029] In one embodiment, such as Figure 4 As shown, both the through groove 10 and the limiting groove 11 are rectangular grooves and are set to correspond to the shape of the limiting block 14, which facilitates the limiting of the limiting groove 11 and the through groove 10 to the limiting block 14.
[0030] In one embodiment, such as Figure 2 As shown, a locking assembly is provided on one side of the base 1.
[0031] In one embodiment, such as Figure 2 and 3 As shown, the engaging assembly includes a connecting plate 4, which is fixedly connected to one side of the base 1. Both sides of the connecting plate 4 are provided with sliding grooves 5, and a slider 6 is slidably arranged inside each sliding groove 5. The two sliders 6 are respectively fixedly connected to one side of the adjacent outer shell 3. The base 1 and the outer shell 3 are limited and connected by the limiting of the sliding grooves 5 and the sliders 6. At this time, the outer shell 3 is already limited on the base 1 and no manual support is required.
[0032] In one embodiment, as shown in the figure, the inner side of the sliding groove 5 is provided with a sealing rubber pad and forms a sealing structure with the inner side of the shell 3, improving the sealing effect. Figure 2
[0033] In one embodiment, as shown in the figure, the surface of the base 1 is provided with a plurality of fixing holes 2 around the periphery, for fixing the base 1. Figure 1
[0034] In one embodiment, as shown in the figure, the base 1 is fixed to the corresponding wall surface through a plurality of bolts penetrating the fixing holes 2, and the base 1 is fixed at a specified wall surface position through the bolts penetrating the fixing holes 2. Figure 1
[0035] The above embodiment discloses a quick-release smoke alarm mechanical shell, wherein the base 1 is fixed at a specified wall surface position through a plurality of bolts penetrating the fixing holes 2, and the base 1 and the shell 3 are limitingly connected through the limiting of the sliding groove 5 and the sliding block 6, at this time the shell 3 has been limited on the base 1 and does not need to be manually supported, only the rotary knob 7 needs to be pressed in turn, the limiting block 14 slides into the spring groove 9 through the through slot 10, at this time the rotary knob 7 drives the limiting block 14 to rotate, at this time the limiting block 14 coincides with the limiting slot 11 and is limited into the limiting slot 11 by the spring 12, thereby buckling and fixing the entire shell 3.
[0036] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A quick-release smoke alarm mechanical housing, comprising a base (1), wherein a housing (3) is provided on one side of the base (1), and a plurality of snap-fit components are provided between the base (1) and the housing (3); Its features are, The buckle assembly includes a buckle post (8), one end of which is fixedly connected to the surface of the base (1). A spring groove (9) is provided on the inner side of the buckle post (8). A through groove (10) is provided through the upper end of the buckle post (8). A limit groove (11) is provided on the top inner side of the buckle post (8). A limit block (14) is slidably provided inside the limit groove (11). A connecting rod (15) is fixedly connected to the middle of the upper end of the limit block (14). A rotary knob (7) is fixedly connected to the other end of the connecting rod (15). One end of the rotary knob (7) is provided through the side of the outer shell (3).
2. The quick-release smoke detector mechanical housing according to claim 1, characterized in that, A spring (12) is provided inside the spring groove (9), and a pressure plate (13) is fixedly connected to one end of the spring (12).
3. The quick-release smoke detector mechanical housing according to claim 1, characterized in that, Both the through groove (10) and the limiting groove (11) are rectangular grooves and are set in accordance with the shape of the limiting block (14).
4. The quick-release smoke detector mechanical housing according to claim 1, characterized in that, A locking component is provided on one side of the base (1).
5. The quick-release smoke detector mechanical housing according to claim 4, characterized in that, The engaging assembly includes a connecting plate (4), which is fixedly connected to one side of the base (1). The connecting plate (4) has grooves (5) on both sides. Each groove (5) has a slider (6) slidably disposed inside. The two sliders (6) are fixedly connected to one side of the adjacent outer shell (3).
6. The quick-release smoke detector mechanical housing according to claim 5, characterized in that, The inner side of the groove (5) is provided with a sealing rubber pad and forms a sealing structure with the inner side of the outer shell (3).
7. The quick-release smoke detector mechanical housing according to claim 1, characterized in that, The base (1) has several fixing holes (2) around its surface.
8. The quick-release smoke detector mechanical housing according to claim 1, characterized in that, The base (1) is fixed to the corresponding wall surface by a number of bolts passing through the fixing holes (2).