Filter bottle locking mechanism of water purifier

Abstract

The utility model discloses a filter bottle locking mechanism of a water purifier, which comprises a filter bottle and a barrel, a base is arranged at the bottom of the barrel, the filter bottle is arranged in the barrel, and the bottom end of the filter bottle is clamped with the base at the bottom of the barrel so as to form water path connection; the upper part of the cylinder is provided with at least two elastic lock tongues extending into the inner cavity of the cylinder; the upper end of the filter bottle is provided with a cam capable of rotating around the axis of the filter bottle, the cam is provided with a smooth outer edge curve, and the smooth outer edge curve comprises at least two vertexes coinciding with the outer circumference of the filter bottle; and the elastic lock tongues are in one-to-one correspondence with the vertexes of the cams. Only one cam is matched with a plurality of lock tongues, only the elastic force of the elastic lock tongues needs to be overcome during use, the filter bottle loading and unloading device is simple in structure and convenient to use, and even children can easily complete loading and unloading actions of the filter bottle.

Description

Technical Field

[0001] The utility model belongs to the technical field of water purifiers, in particular to a filter bottle locking mechanism of a water purifier. Background Art

[0002] As the demand for quality of life increases, water purifiers have become more and more common household appliances. The basic component is a filter bottle installed on a base or waterway board. The raw water is filtered by the filter bottle to obtain purified water. Regardless of the filter material, the filter bottle must have a service life, that is, the filter bottle needs to be replaced after a period of use. If you ask professionals to come to replace the filter bottle, the cost is too high. Therefore, various manufacturers now launch locking mechanisms that make it easy to replace the filter bottle, so that users can replace the filter bottle by themselves. For example, the prior art closest to the present invention is disclosed in CN216136832U, which comprises a locking block (200) slidably mounted on the filter cartridge seat (100), the locking block (200) telescopically moving inside and outside the filter cartridge seat (100); a rotating member (300) rotatably connected to the filter cartridge seat (100) and connected to the locking block (200), the rotating member (300) drives the locking block (200) to move laterally on the filter cartridge seat (100) through rotational motion, thereby locking or unlocking the filter bottle. This locking mechanism and its action mode are still complex, and there is still room for improvement. Summary of the invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a simpler and more convenient filter bottle locking mechanism for a water purifier.

[0004] To this end, the technical solution adopted by the utility model is as follows: the filter bottle locking mechanism of the water purifier includes a filter bottle and a cylinder, the bottom of the cylinder is a base, the filter bottle is placed in the cylinder, and the bottom end of the filter bottle is engaged with the base at the bottom of the cylinder, thereby forming a water path connection; it is characterized in that: the upper part of the cylinder has at least two elastic locking tongues extending into the inner cavity of the cylinder; the upper end of the filter bottle has a cam that can rotate around the axis of the filter bottle, and the cam has a smooth outer edge curve, including at least two vertices that coincide with the outer circumference of the filter bottle; the elastic locking tongue corresponds one-to-one to the vertices of the cam.

[0005] An elastic lock tongue seat is fixed on the outer side of the cylinder circumference. The elastic lock tongue is connected to the elastic lock tongue seat through a spring and extends into the circumference. The elastic lock tongue has a flat surface facing the bottom of the cylinder and a smooth curved surface facing away from the bottom of the cylinder.

[0006] The vertex angles of the elastic locking tongue and the cam are evenly distributed on the circumference of the cylinder and the filter bottle.

[0007] There is also a decorative cover on the top of the filter bottle to cover the cam.

[0008] The use process of the utility model is as follows: when the filter bottle needs to be loaded and locked, the bottom end of the filter bottle first enters the upper part of the cylinder, at which time it contacts the smooth curved surface of the lock tongue, pushing the lock tongue outward to compress the spring, so that the entire filter bottle can smoothly enter the cylinder, so that the bottom end of the filter bottle is engaged with the base at the bottom of the cylinder; at this time, the lock tongue matches the cam position in the axial height. When the top of the cam is offset from the lock tongue, the lock tongue pops out under the action of the spring, and its plane abuts against the filter bottle to become a locking surface. When the filter bottle needs to be removed, the cam is rotated so that the top of the cam abuts against the lock tongue, pushing the lock tongue outward to compress the spring, so that the entire filter bottle shell is taken out of the cylinder.

[0009] The utility model only needs the cooperation of a cam and several locking tongues, and only needs to overcome the elastic force of the elastic locking tongue when in use. The utility model has a simple structure and is easy to use, and even children can easily complete the loading and unloading actions of the filter bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of this embodiment.

[0011] Figure 2 is a cross-sectional view of this embodiment.

[0012] Figure 3 2 is an exploded schematic diagram of this embodiment.

[0013] Figure 4 , Figure 5 is a schematic diagram of the upper end components of the filter bottle.

[0014] Figure 6 , Figure 7 It is a schematic diagram of the cooperation between the cam and the elastic locking tongue. DETAILED DESCRIPTION

[0015] See the attached drawings. This embodiment includes a filter bottle 1 and a cylinder 2. The cylinder 2 is actually a part of the middle frame of the water purifier. The bottom of the cylinder 2 is a base 21. The base 21 is actually a part of the waterway plate of the water purifier. They are fixed as a whole and constitute the fixed part of the water purifier. The filter bottle is a replaceable part of the water purifier. In this embodiment, the filter bottle is installed into the cylinder from top to bottom, so the orientation relationship of each component is described as "upper" and "lower". These orientation descriptions do not constitute a limitation on the scope of protection. They are only examples. In fact, the filter bottle and the cylinder can also be placed horizontally.

[0016] The upper end assembly of the filter bottle includes a decorative cover 12, a handle 13 is located above the decorative cover 12, and a cam 11 is located below the decorative cover 12. The upper end assembly is connected to the filter bottle 1 as a whole and can be rotated. The cam 11 has two vertices 111 and two low points 112. The two vertices 111 evenly divide the circumference, that is, the phase difference is 180 0 ; If there are three vertices, the phase difference can be 1200 , and so on.

[0017] There are two elastic lock tongue seats 22 on the upper part of the cylinder 2, and the elastic lock tongue 3 is installed in the elastic lock tongue seat 22, and its rear end is against the elastic lock tongue seat through the spring 31, and the front end extends into the cylinder under the elastic force of the spring 31. The lower side of the lock tongue 3 is a flat surface, and the upper side is a smooth curved surface.

[0018] When the filter bottle 1 is installed into the cylinder 2, the height of the elastic locking tongue corresponds to the height of the cam. Figure 6 In the case shown, the cam 11 rotates to an angle, at which the cam vertex 111 does not contact the elastic locking tongue 3. The elastic locking tongue 3 extends into the cylinder 2 under the spring 31, and its lower side abuts against the filter bottle 1 on the main body, so that the filter bottle 1 cannot be taken out of the cylinder 2, which is the locked state. Figure 7 In the illustrated case, the cam 11 rotates an angle, at which time the smooth curve of the cam outer edge pushes the elastic locking tongue 3 until the vertex 111 coincides with the locking tongue 3, pressing it completely into the elastic locking tongue seat 22, so that the filter bottle 1 can be taken out of the cylinder 2.

Claims

1. The filter bottle locking mechanism of the water purifier includes a filter bottle and a cylinder, the bottom of the cylinder is a base, the filter bottle is placed in the cylinder, and the bottom end of the filter bottle is engaged with the base at the bottom of the cylinder, thereby forming a waterway connection; it is characterized by: The upper part of the cylinder body is provided with at least two elastic locking tongues extending into the inner cavity of the cylinder body; the upper end of the filter bottle is provided with a cam which can rotate around the axis of the filter bottle, and the cam has a smooth outer edge curve, including at least two vertices coinciding with the outer circumference of the filter bottle; the elastic locking tongues correspond one to one with the vertices of the cam.

2. The filter bottle locking mechanism of the water purifier according to claim 1, characterized in that: An elastic lock tongue seat is fixed on the outer side of the cylinder circumference. The elastic lock tongue is connected to the elastic lock tongue seat through a spring and extends into the circumference. The elastic lock tongue has a flat surface facing the bottom of the cylinder and a smooth curved surface facing away from the bottom of the cylinder.

3. The filter bottle locking mechanism of the water purifier according to claim 1 or 2, characterized in that: The vertex angles of the elastic locking tongue and the cam are evenly distributed on the circumference of the cylinder and the filter bottle.

4. The filter bottle locking mechanism of the water purifier according to claim 1 or 2, characterized in that: There is also a decorative cover on the top of the filter bottle to cover the cam.

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