A detachable snap-fit ​​structure and an air purifier

By simplifying the split buckle structure of the air purifier and using a combination of buttons, springs, and fixing brackets, the high cost and inconvenient cleaning caused by the complex buckle structure in the existing technology are solved, achieving the effects of quick disassembly and reduced production costs.

CN224442432UActive Publication Date: 2026-07-03XIAMEN BRI ENVIRONMENTAL IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN BRI ENVIRONMENTAL IND CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing air purifiers have a complex clip structure, which leads to high production costs and inconvenience for users to clean them.

Method used

A detachable snap-fit ​​structure is designed, including a first snap-fit ​​and a second snap-fit. By combining buttons, springs, and fixing brackets, the assembly process is simplified, ensuring stable connection and quick disassembly.

Benefits of technology

It enables quick and easy assembly of the product, reduces production costs, and allows users to easily disassemble and clean the filter.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224442432U_ABST
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Abstract

This utility model discloses a detachable snap-fit ​​structure and an air purifier. The detachable snap-fit ​​structure includes a first snap-fit ​​and a second snap-fit, which cooperate with each other. The first snap-fit ​​is disposed on a first outer shell body, and the second snap-fit ​​is disposed on a second outer shell body. The first snap-fit ​​includes a button, a spring, and a fixing bracket. A first mounting shaft is provided on the side of the button facing the fixing bracket, and a second mounting shaft is provided on the side of the fixing bracket facing the button. A spring is provided between the first and second mounting shafts. The fixing bracket is located inside the first outer shell body, and the button moves within the movable space formed between the fixing bracket and the first outer shell body. The air purifier is an air purifier with the above-mentioned detachable snap-fit ​​structure. The snap-fit ​​structure of this utility model has fewer components, a simple principle, and is easy to assemble, which can effectively reduce product manufacturing costs.
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Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a detachable snap-fit ​​structure and an air purifier. Background Technology

[0002] With increasing public awareness of personal and environmental health, air purifiers are used in various environments, including homes, medical facilities, and industrial settings. Their primary function is to remove particulate matter from the air, including allergens, PM2.5, PM10, toxic gases, and bacteria. Excessively dry air can cause discomfort, and both air pollution and dryness can disrupt users' work and daily lives. During use, dust easily accumulates at the air intake, requiring users to disassemble and clean the air purifier. Traditional air purifiers have a one-piece structure, making cleaning inconvenient and filter replacement complex. Therefore, detachable air purifier designs have gradually emerged, typically dividing the main body into upper and lower sections secured by a snap-fit ​​mechanism. Users can quickly separate the purifier for cleaning or filter replacement using this mechanism. However, the snap-fit ​​structures in most current air purifiers are quite complex, making assembly difficult and increasing production costs. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a detachable snap-fit ​​structure. This snap-fit ​​structure has fewer components, a simple principle, is easy to assemble, and can effectively reduce product production costs.

[0004] Another objective of this invention is to provide an air purifier having the aforementioned detachable snap-fit ​​structure.

[0005] The technical solution of this utility model is as follows: a detachable snap-fit ​​structure, including a first snap-fit ​​and a second snap-fit. The first snap-fit ​​is disposed on a first outer shell body, and the second snap-fit ​​is disposed on a second outer shell body. The first snap-fit ​​includes a button, a spring, and a fixing bracket. A first mounting shaft is provided on the side of the button facing the fixing bracket, and a second mounting shaft is provided on the side of the fixing bracket facing the button. A spring is provided between the first mounting shaft and the second mounting shaft. The fixing bracket is disposed inside the first outer shell body, and the button moves within the movable space formed between the fixing bracket and the first outer shell body. Through the cooperation of the first snap-fit ​​and the second snap-fit, the user can quickly disassemble or assemble the first outer shell body and the second outer shell body to quickly clean or replace internal components such as filters. This utility model simplifies the structure of the first snap-fit ​​to achieve quick and easy assembly of the product, thereby effectively controlling product production costs. The first mounting shaft and the second mounting shaft can be connected by a sleeve (in which case a large gap needs to be left between them to allow the first mounting shaft to move) or not connected. A spring is installed between the first mounting shaft and the second mounting shaft, and space is reserved for the first mounting shaft to move when the spring is compressed, so as to ensure that the button can move normally when it is pressed or pushed.

[0006] The button has a first hook extending from the side facing the second outer shell. The second latch is a protrusion structure extending inward from the inner wall of the second outer shell. The first hook engages with the protrusion structure and is located inside the protrusion structure. That is, the extension direction of the first hook is parallel to the first outer shell. The first hook extends along the inner sides of both the first and second outer shells towards the second latch until it engages with the second latch. The first hook is located inside the second latch. When the user presses or pushes the button inward, the first hook moves inward and disengages from the second latch, allowing the first and second outer shells to easily separate. When the first hook and the second latch are engaged and fastened, the first and second outer shells are fixedly connected.

[0007] The bump structure is an arc-shaped strip structure or a discontinuous block structure arranged along the circumference of the second outer shell body, and the bump structure can be integrally formed with the second outer shell body.

[0008] The first hook can be one or more; when there are multiple first hooks:

[0009] If the protrusion structure is an arc-shaped strip structure, the length of the protrusion structure is greater than or equal to the total distance of multiple first hooks, ensuring that each first hook can be connected and engaged with the protrusion structure, thereby ensuring a stable connection between the first outer shell body and the second outer shell body;

[0010] If the bump structure is a discontinuous block structure, then each bump structure corresponds to a first hook.

[0011] The button includes a pressing part and a first mounting shaft connected together. The pressing part has a stepped shell structure. The outer surface of the pressing part is flush with the first outer shell body. The stepped structure of the pressing part is embedded in the inner side of the first outer shell body. Several first mounting shafts are distributed on the inner side of the pressing part.

[0012] As a preferred embodiment, the button has two first mounting shafts on its inner side, and correspondingly, the mounting bracket has two second mounting shafts. Each first mounting shaft and each second mounting shaft is connected by a spring. This structure makes the first latch structure more stable and reliable, and the engagement between the first latch and the second latch is also more stable.

[0013] Furthermore, the fixed bracket is provided with pre-positioning buckles on both sides, and the first outer shell body is provided with ribs, with the pre-positioning buckles cooperating with the ribs. Through the cooperation between the pre-positioning buckles and the ribs, the fixed bracket, spring, and button can be installed and pre-positioned inside the first outer shell body, and fixed between the ribs and the first outer shell body by the pre-positioning buckles. During product assembly, the fixed bracket can be locked and fixed to the first outer shell body by screws, making assembly simple and convenient.

[0014] The fixed bracket is also provided with a fixed installation through hole, and the fixed bracket is locked and fixed to the first outer shell body by screws at the fixed installation through hole.

[0015] This utility model discloses an air purifier with the above-mentioned split buckle structure. The first outer shell body is the upper shell of the air purifier, and the second outer shell body is the lower shell of the air purifier. The first buckle is provided at the connection between the upper shell and the lower shell, and the second buckle is provided at the opening edge of the lower shell.

[0016] As a preferred embodiment, the detachable snap-fit ​​structure has two parts, located on opposite sides of the air purifier. When the user needs to separate the upper and lower housings, the upper housing can be easily removed simply by pressing the buttons on both sides simultaneously.

[0017] The aforementioned detachable snap-fit ​​structure can be applied to small household appliances such as air purifiers that require frequent disassembly and assembly. When in use, users only need to press or push the button on the first snap-fit ​​to move the first hook at the end of the button inward and disengage from the second snap-fit, thereby easily separating the first outer shell and the second outer shell. The principle of this detachable snap-fit ​​structure is as follows: the second snap-fit ​​is a simple protruding structure that can be integrally formed with the second outer shell body. The first snap-fit ​​is a detachable structure consisting of a button, a fixing bracket, and a spring, and is installed on the first outer shell body through the fixing bracket. The end of the button is formed with a first hook. When the first and second outer shell bodies need to be fixedly connected, the button is pressed tightly against the first outer shell body under the elastic force of the spring. The first hook and the second snap-fit ​​cooperate to fasten the first and second outer shell bodies, thus fixing them together. When the first and second outer shell bodies need to be separated, the button is pressed or pushed. Under the action of external force, the spring is compressed, and the button moves horizontally towards the fixing bracket (i.e., towards the inside of the first outer shell body). At this time, the first hook will gradually disengage from the second snap-fit, and the user can easily separate the first and second outer shell bodies.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] This split snap-fit ​​structure simplifies the structure of the first snap-fit ​​and allows the button to be quickly installed on the first housing body via a fixed bracket. It has fewer overall components, a simple principle, and is easy for users to operate quickly, while ensuring the stability of its structure.

[0020] In this detachable snap-fit ​​structure, by setting a pre-positioning snap-fit ​​on the fixed bracket and using it in conjunction with the ribs inside the first outer shell, the overall pre-positioning installation of the first snap-fit ​​can be achieved. During product assembly, it is easy to assemble and can effectively reduce product production costs.

[0021] This detachable snap-fit ​​structure can be applied to small household appliances such as air purifiers that require frequent disassembly and assembly, making it widely applicable and easy to use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure when the split snap-fit ​​structure is applied to an air purifier.

[0023] Figure 2 for Figure 1 A magnified view of part A.

[0024] Figure 3 for Figure 1 A schematic diagram of the components after the first and second latches are separated.

[0025] Figure 4 for Figure 3 A three-dimensional structural diagram of each component shown.

[0026] Figure 5 for Figure 1 BB section view.

[0027] The components indicated by the reference numerals in the above figures are as follows:

[0028] 1 is the first outer shell body, 2 is the second outer shell body, 3 is the button, 3-1 is the first mounting shaft, 3-2 is the first hook, 3-3 is the pressing part, 4 is the spring, 5 is the fixed bracket, 5-1 is the second mounting shaft, 5-2 is the fixed mounting through hole, 6 is the movable space, 7 is the second buckle, 8 is the pre-positioning buckle, and 9 is the rib. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.

[0030] Example

[0031] This embodiment presents a detachable snap-fit ​​structure applied to an air purifier.

[0032] like Figure 1 As shown, the detachable snap-fit ​​structure includes a first snap-fit ​​and a second snap-fit ​​that cooperate with each other. The first snap-fit ​​is disposed on the first outer shell body 1, and the second snap-fit ​​is disposed on the second outer shell body 2. The first snap-fit ​​includes a button 3, a spring 4, and a fixing bracket 5, as shown. Figure 3 or Figure 4 As shown, a first mounting shaft 3-1 is provided on the side of the button facing the fixed bracket, and a second mounting shaft 5-1 is provided on the side of the fixed bracket facing the button. A spring is provided between the first mounting shaft and the second mounting shaft. The fixed bracket is located inside the first housing body, and the button moves within the movable space 6 formed between the fixed bracket and the first housing body (e.g., Figure 5 (As shown). Through the cooperation of the first and second clips, users can quickly disassemble or install the first and second outer shells to quickly clean or replace internal components such as filters. This utility model simplifies the structure of the first clip to achieve quick and easy assembly of the product, thereby effectively controlling product production costs. The first and second mounting shafts can be connected by a sleeve (in which case a large gap must be left between them to allow the first mounting shaft to move) or not connected. A spring is installed between the first and second mounting shafts, and space is reserved for the first mounting shaft to move when the spring is compressed, ensuring normal operation when the button is pressed or pushed.

[0033] like Figure 3 or Figure 4As shown, a first hook 3-2 extends from the side of the button facing the second outer shell body. The second latch 7 is a protrusion structure extending inward from the inner wall of the second outer shell body. The first hook engages with the protrusion structure and is located inside the protrusion structure. That is, the extension direction of the first hook is parallel to the first outer shell body. The first hook extends along the inner side of the first and second outer shell bodies towards the second latch until it engages with the second latch. The first hook is located inside the second latch. When the user presses or pushes the button inward, the first hook moves inward and disengages from the second latch, thereby allowing the first and second outer shell bodies to be easily separated. When the first hook and the second latch are engaged and fastened, the first and second outer shell bodies are fixedly connected. The protrusion structure is an arc-shaped strip structure or a discontinuous block structure arranged along the circumference of the second outer shell body, and the protrusion structure can be integrally formed with the second outer shell body. There may be one or more first hooks; when there are multiple first hooks: if the protrusion structure is an arc-shaped strip structure, the length of the protrusion structure is greater than or equal to the total distance of the multiple first hooks, ensuring that each first hook can be connected and cooperate with the protrusion structure, thereby ensuring a stable connection between the first outer shell body and the second outer shell body; if the protrusion structure is a discontinuous block structure, each protrusion structure corresponds to one first hook.

[0034] The button includes a pressing part 3-3 and a first mounting shaft 3-1 connected together. The pressing part has a stepped housing structure (e.g., Figure 1 or Figure 2 As shown), the outer surface of the pressing part is flush with the first outer shell body, and the stepped structure of the pressing part is embedded in the inner side of the first outer shell body. Several first mounting shafts are distributed on the inner side of the pressing part. In this embodiment, as a preferred solution, two first mounting shafts are provided on the inner side of the button (e.g., ...). Figure 4 As shown in the diagram, the fixed bracket is equipped with two second mounting shafts, and each first mounting shaft is connected to the second mounting shaft by a spring. This structure makes the first buckle structure more stable and reliable, and the cooperation between the first buckle and the second buckle is also more stable.

[0035] Furthermore, such as Figure 5 As shown, the fixed bracket has pre-positioning buckles 8 on both sides, and the first outer shell has ribs 9 inside. The pre-positioning buckles cooperate with the ribs. Through the cooperation between the pre-positioning buckles and the ribs, the fixed bracket, spring, and button can be installed and pre-positioned inside the first outer shell. The pre-positioning buckles are used to fix them between the ribs and the first outer shell. During product assembly, the fixed bracket is simply locked and fixed to the first outer shell with screws, making assembly simple and convenient. The fixed bracket also has a fixing mounting through hole 5-2, through which the fixed bracket is locked and fixed to the first outer shell with screws.

[0036] When the aforementioned detachable snap-fit ​​structure is applied to an air purifier, the first outer shell is the upper shell of the air purifier, and the second outer shell is the lower shell. The first snap-fit ​​is located at the connection between the upper and lower shells, and the second snap-fit ​​is located at the edge of the opening of the lower shell. There are two detachable snap-fit ​​structures, located on opposite sides of the air purifier. When the user needs to separate the upper and lower shells, they can easily remove the upper shell by pressing the buttons on both sides simultaneously.

[0037] The aforementioned detachable snap-fit ​​structure can be applied to small household appliances such as air purifiers that require frequent disassembly and assembly. When in use, users only need to press or push the button on the first snap-fit ​​to move the first hook at the end of the button inward and disengage from the second snap-fit, thereby easily separating the first outer shell and the second outer shell. The principle of this detachable snap-fit ​​structure is as follows: the second snap-fit ​​is a simple protruding structure that can be integrally formed with the second outer shell body. The first snap-fit ​​is a detachable structure consisting of a button, a fixing bracket, and a spring, and is installed on the first outer shell body through the fixing bracket. The end of the button is formed with a first hook. When the first and second outer shell bodies need to be fixedly connected, the button is pressed tightly against the first outer shell body under the elastic force of the spring. The first hook and the second snap-fit ​​cooperate to fasten the first and second outer shell bodies, thus fixing them together. When the first and second outer shell bodies need to be separated, the button is pressed or pushed. Under the action of external force, the spring is compressed, and the button moves horizontally towards the fixing bracket (i.e., towards the inside of the first outer shell body). At this time, the first hook will gradually disengage from the second snap-fit, and the user can easily separate the first and second outer shell bodies.

[0038] As described above, the present invention can be well implemented. The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made in accordance with the content of the present invention are covered by the scope of protection claimed by the claims of the present invention.

Claims

1. A detachable snap-fit ​​structure, comprising a first snap-fit ​​and a second snap-fit, the first snap-fit ​​being disposed on a first outer shell body, and the second snap-fit ​​being disposed on a second outer shell body, characterized in that, The first latch includes a button, a spring, and a fixing bracket. A first mounting shaft is provided on the side of the button facing the fixing bracket, and a second mounting shaft is provided on the side of the fixing bracket facing the button. A spring is provided between the first mounting shaft and the second mounting shaft. The fixing bracket is located inside the first housing body, and the button moves within the movable space formed between the fixing bracket and the first housing body.

2. The separable fastener structure according to claim 1, wherein The button has a first hook extending towards the side of the second housing body. The second buckle is a protrusion structure extending inward on the inner wall of the second housing body. The first hook cooperates with the protrusion structure and is located inside the protrusion structure.

3. The separable fastener structure of claim 2, wherein The bump structure is either an arc-shaped strip structure or a discontinuous block structure arranged along the circumference of the second outer shell body.

4. The separable fastener structure of claim 3, wherein The first hook can be one or more; when there are multiple first hooks: If the bump structure is an arc-shaped strip structure, then the length of the bump structure is greater than or equal to the total distance of the multiple first hooks; If the bump structure is a discontinuous block structure, then each bump structure corresponds to a first hook.

5. The separable fastener structure of claim 1 wherein, The button includes a pressing part and a first mounting shaft connected together. The pressing part has a stepped shell structure. The outer surface of the pressing part is flush with the first outer shell body. The stepped structure of the pressing part is embedded in the inner side of the first outer shell body. Several first mounting shafts are distributed on the inner side of the pressing part.

6. The separable fastener structure of claim 5, wherein The button has two first mounting shafts on its inner side, and correspondingly, the fixed bracket has two second mounting shafts. Each first mounting shaft and each second mounting shaft are connected by a spring.

7. The separable fastener structure of claim 1 wherein, The fixed bracket is provided with pre-positioning buckles on both sides, and the first outer shell body is provided with ribs, and the pre-positioning buckles cooperate with the ribs.

8. The separable fastener structure of claim 1 wherein, The fixed bracket is also provided with a fixed installation through hole, and the fixed bracket is locked and fixed to the first outer shell body by screws at the fixed installation through hole.

9. An air cleaner having the split buckle structure according to any one of claims 1 to 8, characterized by The first outer shell is the upper shell of the air purifier, and the second outer shell is the lower shell of the air purifier. The first buckle is located at the connection between the upper shell and the lower shell, and the second buckle is located at the edge of the opening of the lower shell.

10. The air cleaner of claim 9, wherein, There are two separate snap-fit ​​structures, located on opposite sides of the air purifier.