Water purifier top cover fixing device

Abstract

The utility model discloses a top cover fixing device of a water purifier, which comprises a top cover comprising a horizontal plate part and a bent plate part, and the bent plate part extends forwards and is bent to be vertical; the tail end of the horizontal plate part vertically extends downwards to form a threaded hole seat, the vertical end of the bent plate part is provided with a limiting buckle and a clamping buckle, and the inner side of the top cover is provided with a sliding buckle; the front shell is provided with a limiting buckle groove matched with the limiting buckle and a buckle groove matched with the buckle; the two side plates are provided with slide fastener grooves which are connected with the slide fasteners in a sliding manner; the rear shell is provided with a threaded hole corresponding to the threaded hole seat in position; the top cover is limited by the limiting buckle and the limiting buckle groove, pre-fixed by the buckle and the buckle groove, limited by the sliding buckle and the sliding buckle groove in a horizontal sliding mode in sequence, and finally fixed in a full-degree-of-freedom restraining mode through threaded fastening of two screws penetrating through the threaded hole seat and the threaded hole of the rear shell.

Description

Technical Field

[0001] This utility model relates to water purifiers, and more particularly to a water purifier top cover fixing device. Background Technology

[0002] Currently, there are two main technical solutions for fixing the top cover of water purifiers: one is to create four screw holes in the top cover and use four screws to achieve a full-range lock between the shell and the top cover. While this solution provides high fixing strength, it suffers from technical drawbacks such as cumbersome manual operation and increased cost of screw parts. Especially when the screw holes are located on the outside of the shell, it severely affects the product's appearance. The other improved solution uses a composite fixing method combining two screws and clips. Although this reduces the number of screws and improves production efficiency, the clip structure is weak under stress, exhibiting structural weaknesses away from the screw locking area. This makes it prone to quality problems such as clip loosening and top cover edge warping when subjected to drops or transportation vibrations. Both of these solutions have significant technical shortcomings in terms of assembly convenience, production cost control, and structural reliability. There is an urgent need to design a new fixing device that combines ease of operation, economy, and structural stability. Utility Model Content

[0003] To achieve the above objectives, this utility model provides a water purifier top cover fixing device, comprising:

[0004] The top cover includes a horizontal plate portion and a curved plate portion, the curved plate portion extending forward and bending to a vertical position; the tail end of the horizontal plate portion extends vertically downward to form a threaded hole seat, the vertical end of the curved plate portion is provided with a limiting buckle and a snap fastener, and the inner side of the top cover is provided with a sliding buckle;

[0005] The front shell is provided with a limiting buckle groove that cooperates with the limiting buckle, and a buckle groove that cooperates with the buckle;

[0006] The two side plates are provided with sliding grooves that are slidably connected to the sliding buckles;

[0007] The rear housing is provided with a threaded hole corresponding to the position of the threaded hole seat;

[0008] The top cover is sequentially limited by the limiting buckle and the limiting buckle groove, pre-fixed by the buckle and the buckle groove, and horizontally slidably limited by the sliding buckle and the sliding buckle groove. Finally, it is fully constrained and fixed by the threaded fastening of two screws passing through the threaded hole seat and the threaded hole of the rear shell.

[0009] Furthermore, the threaded hole seat, sliding buckle, limit buckle, and snap fastener are integrally injection molded with the top cover.

[0010] Furthermore, the limiting groove and the snap-fit ​​groove are integrally injection molded with the front shell.

[0011] Furthermore, the sliding groove and the side plate are integrally injection molded.

[0012] This device achieves full-range constraint of six degrees of freedom for the top cover through the coordinated three-dimensional structure of buckles, sliding buckles and limit buckles, combined with the final strong fixation of two screws. It can significantly enhance the impact resistance of the top cover during drops or transportation while reducing the number of screws by 50% and hiding the installation holes to improve the product's aesthetics. Its phased assembly mechanism (pre-positioning - sliding locking - final locking) significantly reduces the intensity of manual operation.

[0013] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the water purifier after installation according to this utility model;

[0015] Figure 2 yes Figure 1 A view of the water purifier after the top cover is opened;

[0016] Figure 3 This is a front view of the water purifier;

[0017] Figure 4 This is a rear side view of the water purifier. Detailed Implementation

[0018] The following description, with reference to the accompanying drawings, illustrates several preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0019] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and this invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of some components has been appropriately exaggerated in the drawings.

[0020] like Figure 1-4As shown, the water purifier top cover fixing device of this utility model mainly includes the following components. The top cover 1 is composed of a horizontal plate part 11 and a curved plate part 12. The curved plate part 12 extends to a vertical end 121 flush with the front shell 2 and is provided with a limiting buckle 16 and a snap fastener 15. The inner side of the top cover 1 is provided with a plurality of sliding buckles 31 in sequence corresponding to the side plate 3. The tail end of the horizontal plate 11 of the top cover 1 is provided with a threaded hole seat 13 extending into the water purifier for screw fixing. The front shell 2 is provided with a limiting buckle groove 21 and a snap fastener groove 22 that cooperate with the top cover 1. The side plate 3 is provided with a sliding buckle groove 31 for cooperating with the sliding buckles 31. The rear shell 4 is provided with a threaded hole 41 corresponding to the threaded hole seat 13.

[0021] The assembly process of the top cover fixing device of this utility model is as follows. First, a pre-positioning stage is performed. Align the limiting buckle 16 of the top cover 1 with the limiting buckle groove 21 of the front shell 2, and insert it vertically so that the buckle 15 on the top cover 1 engages with the buckle groove 22 of the front shell 2 to form a temporary fixation. Push the top cover 1 horizontally so that the sliding buckle 14 slides into the sliding buckle groove 31 of the side plate 3. The engagement of the sliding buckle 14 and the sliding buckle groove 31 can prevent the top cover 1 from loosening during transportation or drops. Finally, a final locking stage is performed. Use two screws to pass through the threaded hole seat 13 of the top cover 1 and the threaded hole 41 of the rear shell 4 respectively and tighten them. After the screws are fixed, all degrees of freedom of the top cover 1 are constrained to ensure the stability of the overall structure.

[0022] For disassembly and maintenance, simply loosen the two screws first. Slide the top cover 1 in the reverse direction to disengage the sliding clip 14 from the sliding clip groove 31. Gently pry open the clip 15 to remove the top cover 1. This structural design facilitates maintenance or replacement of the internal filter element.

[0023] The specific embodiments of this utility model have the following advantages: The snap-fit ​​15 and the limiting snap-fit ​​16 provide pre-positioning, reducing the difficulty of manual operation. Only two screws are required, reducing material costs. The sliding snap-fit ​​14 cooperates with the screw to ensure transportation stability. The screw holes are hidden internally, improving aesthetics. Those skilled in the art can make appropriate adjustments according to actual needs. The number and position of the limiting snap-fit ​​16, snap-fit ​​15, or sliding snap-fit ​​14 can be adjusted. Snap-fits or sliding snap-fits of different materials can be used to improve durability. The shape of the sliding snap-fit ​​groove 31 can be optimized for easy assembly and disassembly.

[0024] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A water purifier top cover fixing device, characterized in that, include: The top cover includes a horizontal plate portion and a curved plate portion, the curved plate portion extending forward and bending to a vertical position; the tail end of the horizontal plate portion extends vertically downward to form a threaded hole seat, the vertical end of the curved plate portion is provided with a limiting buckle and a snap fastener, and the inner side of the top cover is provided with a sliding buckle; The front shell is provided with a limiting buckle groove that cooperates with the limiting buckle, and a buckle groove that cooperates with the buckle; The two side plates are provided with sliding grooves that are slidably connected to the sliding buckles; The rear housing is provided with a threaded hole corresponding to the position of the threaded hole seat; The top cover is sequentially limited by the limiting buckle and the limiting buckle groove, pre-fixed by the buckle and the buckle groove, and horizontally slidably limited by the sliding buckle and the sliding buckle groove. Finally, it is fully constrained and fixed by the threaded fastening of two screws passing through the threaded hole seat and the threaded hole of the rear shell.

2. The water purifier top cover fixing device as described in claim 1, wherein, The threaded hole seat, sliding buckle, limit buckle, and snap fastener are integrally injection molded with the top cover.

3. The water purifier top cover fixing device as described in claim 1, wherein, The limiting groove and the snap groove are integrally injection molded with the front shell.

4. The water purifier top cover fixing device as described in claim 1, wherein, The sliding groove and the side plate are integrally injection molded.

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