Purification structure and water purifier

Abstract

The present invention discloses a purification structure and a water purifier. The purification structure includes a filter element assembly, a handle, and a housing assembly. The handle is provided with an arc-shaped abutting surface and a connecting portion, and the connecting portion is rotatably connected to the filter element assembly. The housing assembly is provided with an installation cavity, and the filter element assembly is detachably installed in the installation cavity. The housing assembly is further provided with a pressure-bearing portion. When the handle rotates in a first direction, the arc-shaped abutting surface abuts against the pressure-bearing portion, and the handle drives the filter element assembly to move in a direction away from the installation cavity. Moreover, when the handle rotates in the first direction, the distance from the point where the arc-shaped abutting surface abuts against the pressure-bearing portion to the connecting portion gradually increases. When the purification structure and the water purifier are in use, the potential risk of damage to the contact part between the handle and the housing assembly can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifiers, and particularly to a purification structure and a water purifier. Background Art

[0002] With the improvement of living standards, people pay more and more attention to the quality of life and health. The health problem of domestic drinking water has long been the focus of social concern. Therefore, people often choose water purifiers to purify domestic water to improve the water quality. The filter element in the water purifier generally has a limited service life. After being used for a certain number of years, the filter element needs to be taken out for replacement or cleaning. The water purifier generally includes a filter element assembly, a handle and a housing assembly. The filter element assembly is inserted into the housing assembly, the handle is rotatably connected to the filter element assembly, and one end of the handle abuts against the housing assembly during the rotation of the handle, and the filter element assembly is taken out of the housing assembly by using the lever principle.

[0003] When taking out the filter element of the traditional water purifier, when the filter element assembly is taken out, the contact part between the handle and the housing assembly is easily damaged, affecting the use of the handle. Summary of the Invention

[0004] Based on this, in view of the fact that when taking out the filter element of the traditional water purifier, when the filter element assembly is taken out, the contact part between the handle and the housing assembly is easily damaged, affecting the use of the handle, a purification structure and a water purifier are proposed. When the purification structure and the water purifier are in use, the hidden danger of damage to the contact part between the handle and the housing assembly can be reduced.

[0005] The specific technical solutions are as follows:

[0006] On the one hand, the present application relates to a water purifier including a filter element assembly, a handle and a housing assembly; the handle is provided with an arc-shaped abutting surface and a connecting portion, and the connecting portion is rotatably connected to the filter element assembly; the housing assembly is provided with an installation cavity, the filter element assembly is detachably installed in the installation cavity, and the housing assembly is further provided with a pressure-bearing portion; when the handle rotates in a first direction, the arc-shaped abutting surface abuts against the pressure-bearing portion, and the handle drives the filter element assembly to move in a direction away from the installation cavity, and when the handle rotates in the first direction, the distance from the point where the arc-shaped abutting surface abuts against the pressure-bearing portion to the connecting portion gradually increases.

[0007] The technical solutions are further described below:

[0008] In one embodiment, the abutting end is provided with a first abutting portion and a second abutting portion, the second abutting portion is provided with the arc-shaped abutting surface, the first abutting portion is provided with a first abutting surface, and an insertion gap for the pressure-bearing portion to be inserted and having a clearance fit is provided between the first abutting surface and the arc-shaped abutting surface;

[0009] When the handle rotates in the second direction, the first abutting surface abuts against the pressure-bearing part, and the handle drives the filter element assembly to move relative to the installation cavity until the filter element assembly is detachably connected to the housing assembly and fixed in the installation cavity;

[0010] When the handle rotates in the first direction, the arc-shaped abutting surface abuts against the pressure-bearing part, and the handle drives the filter element assembly to move relative to the installation cavity until the connection between the filter element assembly and the housing assembly is disconnected and they can be separated.

[0011] In one embodiment, the handle is provided with an abutting end and a force-applying end opposite to the abutting end, the connecting part is arranged between the abutting end and the force-applying end, and the filter element assembly is provided with a locking part. When the handle rotates in the second direction and the filter element assembly is locked and cooperated with the housing assembly and fixed in the installation cavity, the force-applying end is locked and cooperated with the locking part.

[0012] In one embodiment, the force-applying end is provided with a card slot, the locking part is a buckle, and the force-applying end is locked and cooperated with the locking part by being clamped with the buckle through the card slot.

[0013] In one embodiment, the buckle includes a first elastic member and a card projection, the card projection is connected to the filter element assembly through the first elastic member, and the card projection can move relative to the filter element assembly. The card projection extends into or out of the card slot by being pressed against the first elastic member to switch between being clamped and cooperated with the card slot and being separated from the card slot.

[0014] In one embodiment, the buckle further includes a button and a second elastic member. The card projection is provided with a mounting hole penetrating through the side wall of the card projection, and the inner wall of the mounting hole forms a pressing inclined surface. One end of the second elastic member passes through the mounting hole and is connected to the filter element assembly, and the other end of the second elastic member is connected to the button. The button presses the second elastic member and moves along the extending direction of the pressing inclined surface to drive the first elastic member to drive the card projection to extend out of the card slot.

[0015] In one embodiment, the filter element assembly is provided with a second water passage part, the second water passage part is provided with a second opening end, the housing assembly includes a mounting housing and a water passage member, the mounting housing is provided with the installation cavity, the water passage member is fixed on the outer wall of the mounting housing, the water passage member is provided with a first water passage part and the pressure-bearing part, the first water passage part is provided with a first opening end, and the filter element assembly is butted and locked with the first opening end through the second opening end to be fixed in the installation cavity.

[0016] In one embodiment, the filter element assembly includes a filter bottle body and an end cap. The end cap is provided on the open end of the filter bottle body. The end cap is provided with a second water passage portion, and the second water passage portion is provided with a second open end. The filter bottle body is inserted into the installation cavity, and the second open end is arranged outside the installation cavity.

[0017] In one embodiment, there is an installation gap between the inner wall of the filter bottle body and the installation cavity.

[0018] On the other hand, the present application also relates to a water purifier, including the purification structure in any of the above embodiments.

[0019] When the above purification structure and water purifier are in use, before removing the filter element assembly, the filter element assembly is detachably installed in the installation cavity; when it is necessary to remove the filter element assembly, when driving the filter element assembly to disengage from the installation cavity, a relatively large external force is required in the early stage, and a relatively small external force is required in the later stage. When the distance from the point where the arc-shaped abutting surface abuts against the pressure-bearing portion to the connecting portion gradually increases when the handle rotates in the first direction, at this time, the resistance arm is small in the early stage of rotation and large in the later stage. Thus, on the premise that the power arm is certain, the force applied by the handle to the contact part between the handle and the pressure-bearing portion is uniform during the whole process of removing the filter bottle assembly, thereby avoiding damage to the contact part between the handle and the pressure-bearing portion and affecting the use of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings used in the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] In addition, the drawings are not drawn to a scale of 1:1, and the relative sizes of the various elements are only drawn schematically in the drawings and not necessarily drawn according to the actual scale.

[0023] Figure 1 It is an exploded view of the purification structure in an embodiment;

[0024] Figure 2 It is a structural diagram of the handle in an embodiment;

[0025] Figure 3 It is a partial cross-sectional view of the water purification structure in an embodiment;

[0026] Figure 4Partial cross-sectional view of the water purification structure in another embodiment;

[0027] Figure 5 Partial cross-sectional view of the water purification structure in another embodiment;

[0028] Figure 6 Partial cross-sectional view of the water purification structure in another embodiment;

[0029] Figure 7 Schematic diagram of the structure of the handle in another embodiment;

[0030] Figure 8 For Figure 4 Partial enlarged schematic diagram of A in;

[0031] Figure 9 Partial cross-sectional view of the water purification structure in another embodiment;

[0032] Figure 10 Partial cross-sectional view of the water purification structure in another embodiment;

[0033] Figure 11 Exploded view of the buckle in one embodiment;

[0034] Figure 12 Schematic diagram of the structure of the buckle in one embodiment;

[0035] Figure 13 Schematic diagram of the structure of the installation housing in one embodiment;

[0036] Figure 14 Schematic diagram of the structure of the filter element assembly in one embodiment;

[0037] Figure 15 Partial cross-sectional view of the water purification structure in another embodiment.

[0038] Explanation of reference numerals:

[0039] 10. Purification structure; 100. Handle; 110. Contact end; 112. First contact part; 1122. First contact surface; 114. Second contact part; 1142. Second contact surface; 116. Insertion gap; 120. Force application end; 130. Connection part; 140. Card slot; 150. Reinforcing rib; 200. Filter element assembly; 210. Filter bottle body; 212. Installation part; 214. First limiting protrusion; 220. End cover; 222. Second waterway part; 2222. Second open end; 230. Locking part; 232. First elastic part; 234. Clamping protrusion; 2342. Pressing inclined surface; 2344. Installation hole; 236. Button; 238. Second elastic part; 300. Housing assembly; 310. Installation housing; 312. Installation cavity; 3122. First limiting groove; 3124. Installation gap; 320. Waterway part; 322. First waterway part; 3222. First open end; 324. Pressure-bearing part; 3242. Third contact surface. Detailed implementation manners

[0040] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] Please refer to Figure 1, in one embodiment, the purification structure 10 includes a handle 100, a filter element assembly 200, and a housing assembly 300. The filter element assembly 200 includes a filter bottle body 210, and a filter medium is installed in the filter bottle body 210. The housing assembly 300 is provided with an installation cavity 312, and the filter bottle body 210 is detachably installed in the installation cavity 312. When it is necessary to replace the filter medium or clean the filter medium, the filter bottle body 210 can be taken out of the installation cavity 312 through the handle 100. Optionally, the way that the filter bottle body 210 is detachably installed in the installation cavity 312 can be: the filter bottle body 210 is detachably connected to the inner wall of the installation cavity 312; or, the filter bottle body 210 is detachably connected to a component outside the installation cavity 312. When it is necessary to drive the filter bottle body 210 to disengage from the installation cavity 312, it is necessary to drive the filter bottle body 210 to disconnect from this component.

[0044] Specifically, please refer to Figure 2 and Figure 3 , in one of the embodiments, the handle 100 includes an abutting end 110 and a force - applying end 120 which are oppositely arranged, and a connecting portion 130 arranged between the abutting end 110 and the force - applying end 120. The filter element assembly 200 further includes an installation portion 212, the installation portion 212 is fixedly arranged on the filter bottle body 210, and the connecting portion 130 is rotatably connected to the installation portion 212.

[0045] Please refer to Figure 3 and Figure 4 , the housing assembly 300 is further provided with a pressure - bearing portion 324. When the handle 100 rotates in the second direction, the abutting end 110 abuts against the pressure - bearing portion 324, and the handle 100 and the pressure - bearing portion 324 form a lever structure with the pressure - bearing portion 324 as the "fulcrum". At this time, when the handle 100 rotates, the handle 100 drives the filter bottle body 210 to move relative to the installation cavity 312 until the filter bottle body 210 is detachably connected to the housing assembly 300 and fixedly arranged in the installation cavity 312.

[0046] Specifically, during the use process, please continue to refer to Figure 3 and Figure 4 , when the handle 100 rotates in the second direction, the abutting end 110 first abuts against the pressure - bearing portion 324. As the force - applying end 120 continues to be stressed, the handle 100 continues to rotate. At this time, the handle 100 drives the filter bottle body 210 to move relative to the installation cavity 312 until the filter bottle body 210 is detachably connected to the housing assembly 300 and fixedly arranged in the installation cavity 312. Optionally, the second direction can be the clockwise direction.

[0047] Please refer to Figure 5 , Figure 6 and Figure 9, when the handle 100 rotates in the first direction, the abutting end 110 abuts against the pressure-bearing part 324, and the force-applying end 120 drives the filter bottle body 210 to move in a direction away from the installation cavity 312. The handle 100 drives the filter bottle body 210 to move relative to the installation cavity 312 until the filter bottle body 210 is disconnected from the housing assembly 300 and can be separated. Among them, the state where the filter bottle body 210 is disconnected from the housing assembly 300 and can be separated can be: the filter bottle body 210 is still installed in the installation cavity 312, but the filter bottle body 210 and the installation cavity 312 are in a state where they can be separated as long as they want to be separated; or, when the filter bottle body 210 is disconnected from the housing assembly 300, the filter bottle body 210 is directly pulled out of the installation cavity 312. Specifically, the second direction can be the clockwise direction, and the first direction can be the counterclockwise direction.

[0048] Based on the above embodiments, by driving the handle 100 to rotate in the second direction, the filter bottle body 210 can be fixed in the installation cavity 312 to complete the installation of the filter bottle body 210; by driving the handle 100 to rotate in the first direction, the filter bottle body 210 can be separated from the installation cavity 312 to take out the filter bottle body 210.

[0049] Please refer to Figure 2 , where F1 is the power, F2 is the resistance, a2 is the power arm, and a1 is the resistance arm. In order to make the entire "lever" structure a labor-saving lever, the ratio of the power arm a2 to the resistance arm a1 is K, where K≥2.564. Within this range, it is more labor-saving for the handle 100 to fix the filter bottle body 210 in the installation cavity 312 or drive the filter bottle body 210 to separate from the installation cavity 312.

[0050] Since a "lever" structure is formed between the handle 100 and the pressure-bearing part 324, in order to make this "lever" structure a labor-saving lever, in one of the embodiments, taking the longitudinal section passing through the center line of the filter bottle body 210 as the first reference plane A, and taking the longitudinal section passing through the connection part of the installation part 212 and the filter bottle body 210 and parallel to the first reference plane A as the second reference plane B, and the second reference plane B is the cross-section of a part of the filter bottle body 210. The vertical distance between the pressure-bearing part 324 and the first reference plane A is greater than the vertical distance between the pressure-bearing part 324 and the second reference plane B. In this way, the resistance arm a1 formed between the action point (please refer to Figure 2 the C point in) between the pressure-bearing part 324 and the abutting end 110 and the installation part 212 is smaller than the resistance arm a1 formed by the traditional setting of the installation part 212 at the first reference plane A. Thus, on the premise of the same power arm ( Figure 2 the a2 in), this "lever" structure is a labor-saving lever, and thus the filter bottle body 210 can be driven to separate from the installation cavity 312 more labor-savingly.

[0051] When the filter element assembly 200 is assembled with the housing assembly 300, the water channels in the filter element assembly 200 need to be docked with the water channels of the housing assembly 300 to ensure smooth water flow. Please refer to Figure 1 , in one embodiment, the housing assembly 300 is provided with a first water channel portion 322, and the first water channel portion 322 is provided with a first open end 3222; the filter element assembly 200 is provided with a second water channel portion 222, and the second water channel portion 222 is fixedly arranged on the filter bottle body 210. The second water channel portion 222 is provided with a second open end 2222. During assembly, the filter bottle body 210 is docked and locked with the first open end 3222 through the second open end 2222 to be detachably connected to the housing assembly 300. Optionally, the second water channel portion 222 can be a water channel adapter.

[0052] Please refer to 1 and Figure 3 , when the filter bottle body 210 is assembled, the driving handle 100 is rotated along the second direction, the abutting end 110 abuts against the bearing portion 324, and the handle 100 drives the filter bottle body 210 to move relative to the installation cavity 312 until the first open end 3222 and the second open end 2222 are docked and communicated and locked in cooperation. The filter element assembly 200 is detachably connected to the housing assembly 300 through the locking cooperation between the first open end 3222 and the second open end 2222. Optionally, a sealing ring can be arranged at the first open end 3222 and / or the second open end 2222. When the first open end 3222 and the second open end 2222 are docked, the sealing ring can be fixed by interference fit with the corresponding side wall.

[0053] Please refer to Figure 1 and Figure 6 , when it is necessary to disassemble the filter bottle body 210, the driving handle 100 is rotated along the first direction, the abutting end 110 abuts against the bearing portion 324, and the force application end 120 drives the filter bottle body 210 to move in a direction away from the installation cavity 312 until the first water channel portion 322 and the second water channel portion 222 are separated under force, thereby disconnecting the filter bottle body 210 from the housing assembly 300. At this time, the filter bottle body 210 can be taken out to clean or replace the filter material.

[0054] Please refer to Figure 1 , as an optional structure of the housing assembly 300, in one embodiment, the housing assembly 300 includes a water channel member 320 and an installation housing 310. The installation housing 310 is provided with an installation cavity 312. The water channel member 320 is fixedly arranged on the outer wall of the installation housing 310 and is arranged outside the installation cavity 312. The water channel member 320 is provided with a first water channel portion 322 and a bearing portion 324. Both the first open end 3222 and the second open end 2222 are arranged outside the installation cavity 312.

[0055] Please refer to Figure 1, As an alternative structure of the filter element assembly 200, in one embodiment, the filter element assembly 200 further includes an end cap 220. The end cap 220 is disposed on the open end of the filter bottle body 210. The end cap 220 is provided with a second water passage portion 222. The second open end 2222 of the second water passage portion 222 is disposed outside the installation cavity 312. During installation, first insert the filter bottle body 210 into the installation cavity 312. At this time, the second open end 2222 is aligned with the first open end 3222, and drive the handle 100 to rotate in the second direction.

[0056] The alternative structures of the handle 100 will be described below in conjunction with the embodiments.

[0057] Please refer to Figure 2 and Figure 7 , In one embodiment, the abutting end 110 is provided with a first abutting portion 112 and a second abutting portion 114. An insertion gap 116 for the pressure-bearing portion 324 to be inserted and have a clearance fit is formed between the first abutting portion 112 and the second abutting portion 114. The pressure-bearing portion 324 can be disposed in the insertion gap 116, or during the rotation of the handle 100, the pressure-bearing portion 324 enters the insertion gap 116.

[0058] Please refer to Figure 7 , As one of the alternative structures of the handle 100, in one embodiment, the handle 100 is in a "U" shape, and both sides of the opening of the "U" shape structure are provided with a first abutting portion 112 and a second abutting portion 114. Please refer to Figure 7 , In order to enhance the strength, in this embodiment, the side wall of the handle 100 is further provided with a reinforcing rib 150.

[0059] Please refer to Figure 3 、 Figure 4 and Figure 7 , When the filter bottle body 210 needs to be installed, the handle 100 rotates in the second direction. The first abutting portion 112 abuts against the pressure-bearing portion 324. At this time, the pressure-bearing portion 324 is equivalent to a support point. The handle 100 continues to rotate and drives the filter bottle body 210 to move relative to the installation cavity 312 until the filter bottle body 210 is detachably connected to the housing assembly 300 and fixed in the installation cavity 312; specifically, when the handle 100 drives the filter bottle body 210 to continuously move relative to the installation cavity 312, the first open end 3222 and the second open end 2222 are docked until the first open end 3222 and the second open end 2222 are locked to realize the detachable connection between the filter bottle body 210 and the housing assembly 300.

[0060] Please refer to Figure 5 、 Figure 6 and Figure 7When the filter bottle 210 needs to be removed, the handle 100 rotates in the first direction. At this time, the second abutting portion 114 abuts the pressure-bearing portion 324. At this time, the force-applying end 120 is applied to continue to drive the filter bottle 210 to move away from the installation cavity 312. At this time, because the handle 100 is connected to the filter bottle 210, when the force-applying end 120 continues to rotate, supported by the second abutting portion 114 and the pressure-bearing portion 324, the filter bottle 210 is displaced relative to the installation cavity 312 until the filter bottle 210 is disconnected from the housing assembly 300 and can be separated. Specifically, as the filter bottle 210 moves relative to the installation cavity 312, the first open end 3222 and the second open end 2222 gradually loosen until the connection is disconnected and the filter bottle 210 can be separated.

[0061] Alternatively, see Figure 2 , Figure 4 and Figure 7 The first abutting portion 112 is provided with a first abutting surface 1122, and the second abutting portion 114 is provided with a second abutting surface 1142. The first abutting surface 1122 and the second abutting surface 1142 are spaced apart to form an insertion gap 116; when the handle 100 rotates along the second direction, the first abutting surface 1122 abuts against the pressure-bearing portion 324; when the handle 100 rotates along the first direction, the second abutting surface 1142 abuts against the pressure-bearing portion 324.

[0062] Please refer to Figure 4 and Figure 8 The first opening end 3222 of the first water channel portion 322 faces upward (in the direction of pushing open the filter bottle body 210), and the second opening end 2222 of the second water channel portion 222 faces downward (in the direction of inserting the filter bottle body 210). The first opening end 3222 and the second opening end 2222 are connected to each other. When water flows along the first opening end 3222 toward the second opening end 2222, the water will exert a certain impact force on the second opening end 2222, which may cause the filter bottle body 210 to be pushed out of the installation cavity 312. Based on this, please refer to Figure 4 and Figure 8 In this embodiment, the pressure-bearing portion 324 is provided with a third abutting surface 3242 for abutting and cooperating with the first abutting surface 1122. When the filter element assembly 200 is subjected to a first force F3 that drives the filter element assembly 200 to move in a direction away from the installation cavity 312, the third abutting surface 3242 applies a second force F4 to the first abutting surface 1122 that drives the handle 100 to rotate in a second direction (see Figure 8 At this time, when facing the impact of water flow on the second open end 2222, the third abutting surface 3242 will exert a second force on the first abutting surface 1122 as a reaction force. This reaction force causes the handle 100 to rotate in the second direction, thereby achieving a "self-locking" effect, thereby improving the stability of the filter bottle body 210 installed in the installation cavity 312.

[0063] Optionally, please refer to Figure 8 , the third abutting surface 3242 is a first abutting inclined surface, the first abutting inclined surface faces the bottom wall of the installation cavity 312, and the height of the first abutting inclined surface from the bottom wall of the installation cavity 312 gradually decreases along the insertion direction of the installation cavity 312. Thus, the second acting force exerted by the first abutting inclined surface on the first abutting surface 1122 is perpendicular to the first abutting inclined surface and towards the lower left, as shown by the Figure 8 arrow direction. Under the action of the acting force in this direction, the filter bottle body 210 will be locked. Among them, the first abutting inclined surface facing the bottom wall of the installation cavity 312 means that the first abutting inclined surface faces the side of the bottom wall of the installation cavity 312, rather than saying that the first abutting inclined surface needs to be completely parallel to the bottom wall of the installation cavity 312.

[0064] Furthermore, in order to cooperate with the first abutting inclined surface, please continue to refer to Figure 8 , in this embodiment, the first abutting surface 1122 is a second abutting inclined surface, and the inclination trend of the second abutting inclined surface is adapted to that of the first abutting inclined surface so as to be able to fit with the first abutting inclined surface. Specifically, the orientation of the second abutting inclined surface is exactly opposite to that of the first abutting inclined surface, but the inclination trend is the same.

[0065] When removing the filter bottle body 210, the resistance that needs to be overcome in the early stage of the rotation of the handle 100 is relatively large. When the handle 100 rotates by a certain angle, the first opening end 3222 and the second opening end 2222 become loose. At this time, the resistance that needs to be overcome when the handle 100 rotates is relatively small. In order to make the external force required by the handle 100 uniform throughout the process of removing the filter bottle body 210 and avoid sudden changes in the acting force applied to the handle 100, resulting in easy damage to the contact part between the handle 100 and the pressure-bearing part 324 and affecting the use of the handle 100. Please refer back to Figure 5 , in this embodiment, the second abutting surface 1142 is an arc-shaped abutting surface. When the handle 100 rotates in the first direction, the distance between the point where the arc-shaped abutting surface abuts against the pressure-bearing part 324 and the connecting part 130 gradually increases (as shown in Figure 5 , when the handle 100 rotates in the second direction, the distance gradually changes from h1 to h2). Thus, in the initial stage of rotation, the distance between the point where the arc-shaped abutting surface abuts against the pressure-bearing part 324 and the connecting part 130 is relatively small, and at this time the resistance arm decreases; when the first opening end 3222 and the second opening end 2222 become loose, the distance between the point where the arc-shaped abutting surface abuts against the pressure-bearing part 324 and the connecting part 130 is increased, and at this time the resistance arm is increased. Thus, the force required by the force application end 120 in the early stage of rotation and the force required by the force application end 120 in the middle and late stages of rotation are kept equal or differ little. Furthermore, throughout the process of the handle 100 driving the filter bottle body 210 to be removed, the external force that needs to be applied to the handle 100 is relatively uniform and there is no situation of sudden increase or decrease. In addition, throughout the process of removing the filter bottle body 210, the experience is also better.

[0066] When the handle 100 drives the filter bottle body 210 to be installed in the installation cavity 312, it is necessary to fix the handle 100 to improve the stability of the filter bottle body 210 installed in the installation cavity 312. Please refer to Figures 10 to 12 , in one embodiment, the filter element assembly 200 is provided with a locking portion 230. When the handle 100 rotates in the second direction, the abutting end 110 abuts against the bearing portion 324. When the handle 100 drives the filter bottle body 210 to move relative to the installation cavity 312 until the filter bottle body 210 is detachably connected to the housing assembly 300, the force-applying end 120 is in locking cooperation with the locking portion 230.

[0067] Optionally, please refer to Figures 10 to 12 , the locking portion 230 is a buckle, and the force-applying end 120 is provided with a slot 140. The force-applying end 120 is in snap-fit connection with the buckle through the slot 140 to be in locking cooperation with the locking portion 230. During use, the force-applying end 120 squeezes the buckle to make the buckle extend into the slot 140 for snap-fit connection.

[0068] Specifically, please refer to Figures 10 to 12 , in one embodiment, the buckle includes a first elastic member 232 and a convex lug 234. The convex lug 234 is connected to the filter element assembly 200 through the first elastic member 232; when the handle 100 rotates in the second direction, the force-applying end 120 will squeeze the convex lug 234, causing the convex lug 234 to be stressed and squeeze the first elastic member 232. At this time, the force-applying end 120 continues to rotate until the convex lug 234 faces the slot 140 and extends into the slot 140 for snap-fit connection; when it is necessary to remove the filter bottle body 210, an external force is used to push the convex lug 234 to make the convex lug 234 squeeze the first elastic member 232 and extend out of the slot 140, thereby realizing the separation of the slot 140 and the convex lug 234. Specifically, the convex lug 234 is connected to the end cover 220 through the first elastic member 232, and the end cover 220 may be provided with a chute or a guide rail that slidably cooperates with the convex lug 234.

[0069] Optionally, the convex lug 234 can be separated from the slot 140 by pressing the button 236 to apply a force to the convex lug 234.

[0070] Specifically, please refer to Figure 11, the buckle further includes a button 236 and a second elastic member 238. The convex lug 234 is connected to the filter element assembly 200 through the first elastic member 232, and the convex lug 234 is movable relative to the filter element assembly 200. The convex lug 234 is provided with a mounting hole 2344 penetrating through the side wall of the convex lug 234. One end of the second elastic member 238 passes through the mounting hole 2344 and is connected to the filter element assembly 200, and the other end of the second elastic member 238 is connected to the button 236. Specifically, the button 236 is connected to the end cap 220 through the second elastic member 238. A pressing inclined surface 2342 is formed on the inner wall of the mounting hole 2344. When the button 236 is pressed, the button 236 presses the second elastic member 238 and moves along the extending direction of the pressing inclined surface 2342. At this time, the first elastic member 232 is driven to drive the buckle to extend out of the clamping groove 140. Please refer to Figure 11 , the setting principle of the inclination mode of the pressing inclined surface 2342 is: when the button 236 presses the pressing inclined surface 2342 and moves along the extending direction of the pressing inclined surface 2342, the direction of the force of the button 236 on the pressing inclined surface 2342 is the direction in which the convex lug 234 is forced to withdraw from the clamping groove 140, and the height of the pressing inclined surface 2342 gradually decreases along the pressing direction. The pressing inclined surface 2342 faces the side of the convex lug 234. Therefore, when it is necessary to remove the filter bottle body 210, only need to press the button 236 to separate the convex lug 234 from the clamping groove 140, and then rotate the handle 100 in the first direction.

[0071] Furthermore, since the vertical distance between the pressure-bearing part 324 and the first reference plane A is greater than the vertical distance between the pressure-bearing part 324 and the second reference plane B, therefore, the resistance arm formed between the action point between the pressure-bearing part 324 and the abutting end 110 and the mounting part 212 is smaller than that when the mounting part 212 is arranged at the first reference plane A. Furthermore, when the filter element assembly 200 is subjected to a first force that drives the filter element assembly 200 to move in a direction away from the installation cavity 312, on the premise that the magnitude of the first force remains unchanged, the locking part 230 exerts a force on the handle 100 to lock the handle 100 is relatively small. In this way, the locking part 230 can "lock" the handle 100 with a smaller force, avoiding the handle 100 from being disengaged from the locking part 230 when the filter element assembly 200 is subjected to an impact force.

[0072] On the basis of any of the above embodiments, please refer to Figure 13 and Figure 14, a first limiting protrusion 214 is provided on the outer wall of the filter bottle body 210, and a first limiting groove 3122 that is in concave-convex fit with the first limiting protrusion 214 is provided on the inner wall of the installation cavity 312. When the filter bottle body 210 is installed in the installation cavity 312, it is limited and installed in the installation cavity 312 through the concave-convex fit of the first limiting protrusion 214 and the first limiting groove 3122, so as to prevent the filter bottle body 210 from rotating relative to the installation cavity 312 under the action of external force, resulting in the breakage of the connection between the first opening end 3222 and the second opening end 2222. In another embodiment, a second limiting groove may also be provided on the outer wall of the filter bottle body 210, and a second limiting protrusion that is in concave-convex fit with the second limiting groove is provided on the inner wall of the installation cavity 312. The function achieved is the same as that of the foregoing embodiment, and will not be elaborated here one by one.

[0073] Further, please refer to Figure 15 , there is an installation gap 3124 between the inner wall of the filter bottle body 210 and the installation cavity 312. In this way, when disassembling the filter bottle body 210, the handle 100 drives the filter bottle body 210 to move upward. At this time, external air enters the installation cavity 312 through the installation gap 3124 to ensure that the internal air pressure in the installation cavity 312 is uniform when disassembling the filter bottle body 210, thereby facilitating the removal of the filter bottle body 210. When installing the filter bottle body 210, the handle 100 drives the filter bottle body 210 to move downward, and the air in the installation cavity 312 is conveyed to the outside through the installation gap 3124, thereby ensuring that the air pressure in the installation cavity 312 is uniform when disassembling the filter bottle body 210, and thus facilitating the installation of the filter bottle body 210.

[0074] On the other hand, the present application also relates to a water purifier, including the purification structure 10 in any of the foregoing embodiments.

[0075] Before the filter element assembly 200 is taken out, the filter element assembly 200 is detachably installed in the installation cavity 312; when the filter element assembly 200 needs to be taken out, when driving the filter element assembly 200 to disengage from the installation cavity 312, a relatively large external force is required in the early stage, and a relatively small external force is required in the later stage. When the distance from the point where the arc-shaped abutting surface abuts against the pressure-bearing part 324 to the connecting part 130 gradually increases when the handle 100 rotates in the first direction, at this time, the resistance arm is small in the early stage of rotation and large in the later stage. In this way, on the premise that the power arm is constant, the force applied by the handle 100 to the contact part between the handle 100 and the pressure-bearing part 324 is uniform during the whole process of taking out the filter bottle assembly, thereby preventing the contact part between the handle 100 and the pressure-bearing part 324 from being damaged and affecting the use of the handle 100.

[0076] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0078] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0079] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0080] The above embodiments only represent several embodiments of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.

Claims

1. A purification structure, characterized in that, Comprising: Filter element assembly; A handle, the handle is provided with an arc-shaped abutting surface and a connecting portion, the connecting portion is rotatably connected to the filter element assembly, the handle is provided with an abutting end and a force-applying end opposite to the abutting end, and the connecting portion is arranged between the abutting end and the force-applying end; A housing assembly, the housing assembly is provided with an installation cavity, the filter element assembly is detachably installed in the installation cavity, and the housing assembly is further provided with a pressure-bearing portion; When the handle rotates in the first direction, the arc-shaped abutting surface abuts against the pressure-bearing portion, and the handle drives the filter element assembly to move in a direction away from the installation cavity, and when the handle rotates in the first direction, the distance from the point where the arc-shaped abutting surface abuts against the pressure-bearing portion to the connecting portion gradually increases; The abutting end is provided with a first abutting portion and a second abutting portion, the second abutting portion is provided with the arc-shaped abutting surface, the first abutting portion is provided with a first abutting surface, and an insertion gap for the pressure-bearing portion to be inserted and in clearance fit is provided between the first abutting surface and the arc-shaped abutting surface; When the handle rotates in the second direction, the first abutting surface abuts against the pressure-bearing portion, and the handle drives the filter element assembly to move relative to the installation cavity until the filter element assembly is detachably connected to the housing assembly and fixed in the installation cavity; When the handle rotates in the first direction, the arc-shaped abutting surface abuts against the pressure-bearing portion, and the handle drives the filter element assembly to move relative to the installation cavity until the connection between the filter element assembly and the housing assembly is disconnected and they can be separated.

2. The purification structure according to claim 1, wherein, The filter element assembly is provided with a locking portion. When the handle rotates in the second direction and the filter element assembly is locked and fitted with the housing assembly and fixed in the installation cavity, the force-applying end is locked and fitted with the locking portion.

3. The purification structure according to claim 2, wherein The force-applying end is provided with a card slot, the locking portion is a buckle, and the force-applying end is in snap-fit connection with the buckle through the card slot to be locked and fitted with the locking portion.

4. The purification structure according to claim 3, wherein The buckle includes a first elastic member and a card projection, the card projection is connected to the filter element assembly through the first elastic member, and the card projection can move relative to the filter element assembly. The card projection extends into or out of the card slot by squeezing the first elastic member under force to switch between snap-fit connection with the card slot and separation from the card slot.

5. The purification structure according to claim 4, wherein, The buckle further includes a button and a second elastic member. The card projection is provided with a mounting hole penetrating through the side wall of the card projection, and a pressing inclined surface is formed on the inner wall of the mounting hole. One end of the second elastic member passes through the mounting hole and is connected to the filter element assembly, and the other end of the second elastic member is connected to the button. The button squeezes the second elastic member under force and moves along the extending direction of the pressing inclined surface to drive the first elastic member to drive the card projection to extend out of the card slot.

6. The purification structure according to any one of claims 1 to 5, characterized in that, The filter element assembly is provided with a second water passage portion, the second water passage portion is provided with a second open end, the housing assembly includes a mounting housing and a water passage member, the mounting housing is provided with the mounting cavity, the water passage member is fixed to the outer wall of the mounting housing, the water passage member is provided with a first water passage portion and the pressure-bearing portion, the first water passage portion is provided with a first open end, and the filter element assembly is butt-jointed and locked with the first open end through the second open end to be fixed in the mounting cavity.

7. The purification structure according to claim 6, wherein, The filter element assembly includes a filter bottle body and an end cap, the end cap covers the open end of the filter bottle body, the end cap is provided with a second water passage portion, the second water passage portion is provided with a second open end, the filter bottle body is inserted into the mounting cavity, and the second open end is arranged outside the mounting cavity.

8. The purification structure according to claim 7, wherein, There is an installation gap between the filter bottle body and the inner wall of the mounting cavity.

9. The purification structure according to claim 7, characterized in that The filter bottle body is detachably connected to the inner wall of the mounting cavity.

10. A water purifier, characterized in that, It includes the purification structure according to any one of claims 1 to 9.

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