Water purifier

Abstract

The present application relates to a kind of water purifiers, including whole machine shell assembly, filter core assembly and handle, whole machine shell assembly is equipped with installation cavity and limiting portion, filter core assembly is detachably installed in installation cavity, handle is equipped with gripping portion, locking portion and dismounting portion, handle is rotatably connected with filter core assembly by adapter point, when gripping portion is stressed so that handle is positive relative to filter core assembly, locking portion is pressed on limiting portion to make filter core assembly be compressed in installation cavity, gripping portion, adapter point and locking portion on handle constitute first labor-saving lever, when gripping portion is stressed so that handle is reversed relative to filter core assembly, dismounting portion is pressed on limiting portion to make filter core assembly be loosened from installation cavity, gripping portion, adapter point and dismounting portion on handle constitute second labor-saving lever.The first labor-saving lever and second labor-saving lever formed on handle can play the effect of saving labor, improve the operation convenience of locking and dismounting process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water purification equipment, in particular to a water purifier. BACKGROUND

[0002] The water purifier mainly comprises a filter core assembly and a whole machine shell assembly, and the filter core assembly is installed in the whole machine shell assembly. The filtering effect of the water purifier is mainly affected by the filtering capacity of the filter core assembly, and the filter core assembly needs to be maintained to maintain the filtering capacity of the filter core assembly after being used for a period of time. Based on this, the filter core assembly and the whole machine shell assembly are generally detachably connected, and the detaching and locking processes are respectively implemented by different structures, which will result in a complex overall structure, a difficult detaching and assembling process, and an inconvenient operation. SUMMARY

[0003] The present application aims at the problem of inconvenient detaching and assembling of the filter core assembly in the water purifier, and provides a water purifier which can meet the needs of detaching and assembling of the filter core assembly without setting multiple different structures, and the detaching and assembling process is labor-saving and the operation is relatively convenient.

[0004] A water purifier comprises a whole machine shell assembly, a filter core assembly and a handle, the whole machine shell assembly is provided with an installation cavity and a limiting portion, the filter core assembly is detachably installed in the installation cavity, the handle is provided with a holding portion, a locking portion and a detaching portion, the handle is rotationally connected with the filter core assembly through a switching point, when the holding portion is forced to make the handle rotate positively relative to the filter core assembly, the locking portion is pressed against the limiting portion to make the filter core assembly be pressed in the installation cavity, the holding portion, the switching point and the locking portion on the handle constitute a first labor-saving lever, when the holding portion is forced to make the handle rotate reversely relative to the filter core assembly, the detaching portion is pressed against the limiting portion to make the filter core assembly be loosened from the installation cavity, the holding portion, the switching point and the detaching portion on the handle constitute a second labor-saving lever.

[0005] The above-mentioned scheme provides a water purifier, and the handle is formed with a first labor-saving lever and a second labor-saving lever, wherein the first labor-saving lever is used for locking the filter core assembly in the installation cavity, and the second labor-saving lever is used for the detaching process of the filter core assembly. The structure used for the locking and detaching processes of the filter core is integrated on the handle, the structure of the whole water purifier is simplified, and the first labor-saving lever and the second labor-saving lever formed on the handle can also have a labor-saving effect, and the operation convenience of the locking and detaching processes is improved.

[0006] In one of the embodiments, the ratio between the power arm L1 and the resistance arm L2 of the first labor-saving lever is not less than 2.5, and / or the ratio between the power arm L3 and the resistance arm L4 of the second labor-saving lever is not less than 2.5.

[0007] In one of the embodiments, the ratio between the power arm L1 and the resistance arm L2 of the first force-saving lever is not less than 2.564, and / or the ratio between the power arm L3 and the resistance arm L4 of the second force-saving lever is not less than 2.564.

[0008] In one of the embodiments, the point on the locking part that is pressed against the limiting part is the first fulcrum of the first force-saving lever, which is located on the side of the transfer point away from the holding part, and the point on the dismounting part that is pressed against the limiting part is the second fulcrum of the second force-saving lever, which is located on the side of the transfer point away from the holding part. The ratio between the power arm and the resistance arm of the second force-saving lever gradually decreases as the handle is reversed.

[0009] In one of the embodiments, the filter core assembly is provided with connectors, the connectors are provided with sealing rings, the connectors are suspended outside the filter core assembly, the whole machine shell assembly is provided with interfaces matching the connectors, the openings of the interfaces face the same direction as the installation cavity, the filter core assembly is inserted into the installation cavity along the axial direction of the installation cavity, when the handle is turned in the normal direction, the locking part gradually presses against the limiting part on the side close to the bottom wall of the installation cavity, and when the handle is reversed, the dismounting part presses against the limiting part on the side close to the opening of the installation cavity.

[0010] In one of the embodiments, one end of the connector on the filter core assembly is the head end, multiple connectors are arranged side by side and spaced apart on the head end, the interfaces are multiple, the interfaces and the connectors are arranged one by one, two first force-saving levers and two second force-saving levers are formed on the handle, two support points for rotationally connecting with the handle are arranged on the filter core assembly, the support points are located on the head end, multiple connectors form a connector group, the two support points are respectively located on the two sides of the connector group, a longitudinal section passing through the central axis of the filter core assembly and parallel to the direction in which multiple connectors are arranged side by side is a first reference surface, a longitudinal section passing through the support points and parallel to the first reference surface is a second reference surface, the vertical distance between the connector group and the second reference surface is less than the vertical distance between the connector group and the first reference surface.

[0011] In one of the embodiments, the whole machine shell assembly comprises a support shell and a waterway plate connected with each other, the installation cavity is formed in the support shell, the front surface of the waterway plate faces the outer peripheral surface of the support shell, the limiting part is arranged on the waterway plate, the limiting part is located on the left and right sides of the waterway plate, and the interfaces are formed on the waterway plate.

[0012] In one of the embodiments, the waterway board is provided with two auxiliary boards, the two auxiliary boards are located on the left and right sides of the waterway board, the auxiliary boards are suspended on the front surface of the waterway board, the limiting part includes a protrusion on the side of the auxiliary board away from the support shell, and the outer circumferential surface of the support shell is provided with a limiting rib, and the limiting rib is located on the side of the auxiliary board close to the bottom wall of the mounting cavity.

[0013] In one of the embodiments, the handle is in an arc-shaped segment structure, the holding part is located on the middle holding segment of the handle, both ends of the handle are provided with the adapter point, the locking part and the dismounting part, the holding part and the adapter point and the locking part located on the same end of the handle form the first labor-saving lever, the holding part and the adapter point and the dismounting part located on the same end of the handle form the second labor-saving lever, and the whole machine shell assembly is provided with two limiting parts, the limiting parts are arranged in one-to-one correspondence with the first labor-saving lever, and the limiting parts are arranged in one-to-one correspondence with the second labor-saving lever.

[0014] In one of the embodiments, a gap is arranged between the locking part and the dismounting part located on the same end of the handle, the opening of the gap is located on the end surface of the handle, the limiting part gradually enters the gap from the opening of the gap when the handle is rotated in the forward direction, the limiting part is pressed on the surface of the locking part for surrounding the gap, the limiting part gradually exits the gap when the handle is rotated in the reverse direction, and the limiting part is pressed on the surface of the dismounting part for surrounding the gap. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and are used to interpret the specific embodiments of the present application and their descriptions, and do not constitute improper limitations to the present application.

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other accompanying drawings can be obtained by those skilled in the art without any creative effort.

[0017] Figure 1 The structural schematic diagram of the water purifier described in the present embodiment is shown in the figure;

[0018] Figure 2 The structural schematic diagram of the water purifier described in the present embodiment is shown in the figure; Figure 1 The exploded view of the water purifier shown in the figure is shown in the figure;

[0019] Figure 3 The cross-sectional view of the water purifier in the locked state is shown in the figure;

[0020] Figure 4 AndFigure 5 Sectional view of the water purifier during disassembly;

[0021] Figure 6 Structure diagram of the filter element assembly in the water purifier of the present embodiment;

[0022] Figure 7 Structure diagram of the handle of the present embodiment;

[0023] Figure 8 Structure diagram of the waterway board of the present embodiment;

[0024] Figure 9 Structure diagram of the waterway board from another perspective;

[0025] Figure 10 Sectional view of the water purifier when the handle is rotated to the limit position relative to the filter element assembly;

[0026] Figure 11 Enlarged view of A in FIG. 7; Figure 10

[0027] Figure 12 Sectional view of the snap buckle assembly in the water purifier of the present embodiment;

[0028] Figure 13 Structure diagram of the snap buckle assembly of the present embodiment;

[0029] Figure 14 Structure diagram of the water purifier of another embodiment;

[0030] Figure 15 Structure diagram of the slide buckle of the present embodiment.

[0031] Explanation of reference signs:

[0032] 10, water purifier; 11, filter element assembly; 111, insertion slot; 1111, recess; 112, joint; 12, handle; 121, intermediate gripping section; 1211, gripping portion; 1212, bayonet; 122, connecting section; 1221, locking portion; 1222, disassembly portion; 1223, main body portion; 123, clearance slot; 124, pivot; 1241, rotation stop protrusion; 125, reinforcing rib; 13, whole machine shell assembly; 131, support shell; 132, waterway board; 1321, limiting portion; 1322, first mating surface; 1323, second mating surface; 1324, interface; 1325, auxiliary plate; 14, outer shell cover; 15, snap buckle assembly; 151, first slide block; 1511, first inclined surface; 152, elastic return member; 16, button; 17, slide buckle; 171, clasp; 18, first pivot point; 19, second pivot point. DETAILED DESCRIPTION ​

[0033] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific embodiments described herein, and skilled persons in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0034] As shown in Figure 1 and Figure 2 , in one embodiment, a water purifier 10 is provided, comprising a filter core assembly 11 and a handle 12, the handle 12 being rotationally connected with the filter core assembly 11. The position on the handle 12 where the handle 12 is rotationally connected with the filter core assembly 11 is a switching point, and the position on the filter core assembly 11 where the handle 12 is rotationally connected with the filter core assembly 11 is a supporting point.

[0035] Further, as shown in Figure 1 , the water purifier 10 further comprises a whole-machine shell assembly 13. The whole-machine shell assembly 13 is provided with a mounting cavity, and the filter core assembly 11 is detachably mounted in the mounting cavity. Specifically, as shown in Figures 1 to 5 , the filter core assembly 11 can be inserted into the mounting cavity, and during the process of disassembly, the handle 12 provides an axial force to the filter core assembly 11 along the mounting cavity, so that the filter core assembly 11 can be inserted into or pulled out of the mounting cavity.

[0036] Further, as shown in Figure 2 , the whole-machine shell assembly 13 is provided with a limiting portion 1321, and the handle 12 is provided with a holding portion 1211, a locking portion 1221 and a dismounting portion 1222. When the holding portion 1211 is forced to make the handle 12 rotate in the positive direction relative to the filter core assembly 11, the locking portion 1221 is pressed against the limiting portion 1321 to make the filter core assembly 11 tightly pressed in the mounting cavity, and the holding portion 1211, the switching point and the locking portion 1221 on the handle 12 constitute a first labor-saving lever. When the holding portion 1211 is forced to make the handle 12 rotate in the reverse direction relative to the filter core assembly 11, the dismounting portion 1222 is pressed against the limiting portion 1321 to make the filter core assembly 11 loose from the mounting cavity, and the holding portion 1211, the switching point and the dismounting portion 1222 on the handle 12 constitute a second labor-saving lever.

[0037] The above-described solution provides a water purifier 10 in which a first and a second labor-saving lever are formed on the handle 12. The first labor-saving lever is used during the locking process of the filter element assembly 11, and the second labor-saving lever is used during the disassembly process of the filter element assembly 11. By integrating the structures for both the locking and disassembly processes of the filter element into a single handle 12, the structure of the entire water purifier 10 is simplified. Moreover, the first and second labor-saving levers formed on the handle 12 also provide a labor-saving effect, improving the ease of operation during the locking and disassembly processes.

[0038] Specifically, the forward rotation mentioned here can refer to, for example, Figure 1 and Figure 3 At the angle shown, handle 12 rotates counterclockwise, as... Figure 1 The image shows the state when the locking part 1221 first contacts the limiting part 1321, as shown. Figure 3 The image shows the state where the filter element assembly 11 is fully pressed into the mounting cavity, and the locking part 1221 is fully pressed against the limiting part 1321. The reversal mentioned here can refer to, for example... Figure 4 and Figure 5 At the angle shown, handle 12 rotates clockwise, as... Figure 4 This is the state when the detachable part 1222 on the handle 12 initially contacts the limiting part 1321 during reversal. Figure 5 This refers to the state when the handle 12 is rotated to the point where the filter element assembly 11 is initially loosened.

[0039] Furthermore, in one embodiment, such as Figure 1 As shown, the ratio between the power arm L1 and the resistance arm L2 of the first labor-saving lever is not less than 2.5.

[0040] like Figure 4 and Figure 5 As shown, the ratio between the effort arm L3 and the resistance arm L4 of the second effort-saving lever is not less than 2.5.

[0041] By limiting the ratio between the power arm and the resistance arm to a range of no less than 2.5, a better feel can be achieved during disassembly. If the ratio between the power arm and the resistance arm is too small, the effort-saving effect will be insignificant, and the disassembly and assembly process will be more strenuous. Moreover, the resistance during disassembly and assembly will be more noticeable. To ensure that the force acting on the handle 12 is within a comfortable range, the ratio between the power arm and the resistance arm should be set to no less than 2.5.

[0042] More specifically, in one embodiment, the ratio between the power arm L1 and the resistance arm L2 of the first effort-saving lever is not less than 2.564.

[0043] The ratio between the effort arm L3 and the resistance arm L4 of the second effort-saving lever is not less than 2.564.

[0044] When the connector 112 is inserted into the interface 1324, the resistance is 60N, and the most comfortable force value of the human hand holding the handle 12 is 23.4N. Therefore, the ratio of the power arm to the resistance arm in the most comfortable state is 2.564. When the ratio of the power arm to the resistance arm is not less than 2.564, the labor-saving effect is better, and the operation comfort is better.

[0045] Further, as shown in Figure 1 , in an embodiment, the point on the locking portion 1221 that is pressed against the limiting portion 1321 is the first fulcrum 18 of the first labor-saving lever, and the first fulcrum 18 is located on the side of the adapter point away from the holding portion 1211. During assembly, as shown in Figure 1 and Figure 3 , after a downward force is applied to the holding portion 1211, the limiting portion 1321 provides support for the locking portion 1221 by means of the first labor-saving lever. The handle 12 rotates with the point on the locking portion 1221 that is pressed against the limiting portion 1321 as the fulcrum, and the adapter point moves towards the bottom wall of the mounting cavity, synchronously driving the filter cartridge assembly 11 connected to the handle 12 to be pressed into the mounting cavity.

[0046] Alternatively, the surface on the locking portion 1221 that is pressed against the limiting portion 1321 can also be located between the holding portion 1211 and the adapter point, as long as the holding portion 1211, the adapter point, and the locking portion 1221 on the handle 12 form the first labor-saving lever. For example, the adapter point is located at one end of the handle 12. When the filter cartridge assembly 11 is initially placed into the mounting cavity, the handle 12 can be first adjusted to a position where the holding portion 1211 is closer to the bottom wall of the mounting cavity than the adapter point, so that the locking portion 1221 is located on the side of the limiting portion 1321 closer to the bottom wall of the mounting cavity. Then, a force is applied to the holding portion 1211 in a direction away from the bottom wall of the mounting cavity. As the handle 12 rotates, the limiting portion 1321 provides a downward force to the locking portion 1221, causing the adapter point to move towards the bottom wall of the mounting cavity, and then causing the filter cartridge assembly 11 to be installed and locked in the mounting cavity.

[0047] Further, as shown in Figure 4 and Figure 5 , the point on the dismounting portion 1222 that is pressed against the limiting portion 1321 is the second fulcrum 19 of the second labor-saving lever, and the second fulcrum 19 is located on the side of the adapter point away from the holding portion 1211.

[0048] When dismounting is needed, as shown in Figure 4 and Figure 5As shown, when an upward lifting force is applied to the gripping portion 1211 of the handle 12, the dismounting portion 1222 gradually presses against the limiting portion 1321 by means of the second force-saving lever. During the reverse rotation of the handle 12, the limiting portion 1321 supports the dismounting portion 1222, so that the handle 12 rotates around the point where the dismounting portion 1222 presses against the limiting portion 1321 as the fulcrum, and the transition point moves away from the bottom wall of the mounting cavity, thereby pulling the filter element assembly 11 out of the mounting cavity.

[0049] Similarly, optionally, the surface of the dismounting portion 1222 that presses against the limiting portion 1321 can also be located between the transition point and the gripping portion 1211. Similarly to the above-mentioned scheme in which the surface of the dismounting portion 1222 that presses against the limiting portion 1321 is located between the gripping portion 1211 and the transition point, when the filter element assembly 11 is locked in the mounting cavity, the dismounting portion 1222 is located on the side of the limiting portion 1321 away from the bottom wall of the mounting cavity. At this time, the gripping portion 1211 is provided with a downward pressure towards the bottom wall of the mounting cavity, the dismounting portion 1222 presses against the limiting portion 1321, the transition point moves away from the bottom wall of the mounting cavity, and then the filter element assembly 11 is pulled out of the mounting cavity.

[0050] Further, in an embodiment, as shown in Figures 1 to 6 , the surface of the limiting portion 1321 that presses against the dismounting portion 1222 is a second matching surface 1323. As shown in Figure 3 , when the filter element assembly 11 is pressed in the mounting cavity, the dismounting portion 1222 and the second matching surface 1323 are spaced apart. In other words, the dismounting portion 1222 and the second matching surface 1323 do not contact each other at the initial stage of the reverse rotation of the handle 12, and there is a certain virtual position between them, so that the limiting portion 1321 does not hinder the reverse rotation of the handle 12. As shown in Figure 4 , the dismounting portion 1222 contacts the second matching surface 1323 only after the handle 12 rotates by a predetermined angle, and then the transition point starts to move in the direction of exiting the mounting cavity, thereby improving the operation feeling.

[0051] Further, in an embodiment, as shown in Figure 4 and Figure 5 , the ratio of the power arm to the resistance arm of the second force-saving lever gradually decreases as the handle 12 reverses.

[0052] Specifically, in order to further improve the operation feeling and avoid the situation that the resistance is large or small, as shown in Figures 3 to 5As shown, the surface of the dismounting part 1222 that is pressed against the second matching surface 1323 is an arc-shaped convex surface. Thus, during the reverse rotation of the handle 12, the ratio of the power arm to the resistance arm of the second force-saving lever gradually decreases. When the dismounting part 1222 starts to be pressed against the second matching surface 1323, the filter core assembly 11 just starts to be separated from the whole machine shell assembly 13, and the filter core assembly 11 needs a relatively large force, and the ratio of the power arm to the resistance arm is relatively large, so the force-saving ratio is relatively large. As the handle 12 continues to be reversed, the force needed by the filter core assembly 11 for dismounting becomes smaller, and the ratio of the power arm to the resistance arm is relatively small, so the force-saving ratio becomes smaller. Thus, the force needed by the user on the handle 12 changes relatively little during the whole process, and the operation hand feeling is improved.

[0053] Further, in one embodiment, as shown in Figures 1 to 5 and Figure 9 shown, the surface of the limiting part 1321 that is pressed against the locking part 1221 is the first matching surface 1322. The surface perpendicular to the axis of the mounting cavity is the reference surface, and the first matching surface 1322 is arranged obliquely relative to the reference surface. When the handle 12 is rotated forward, the position on the first matching surface 1322 that first contacts the locking part 1221 is the initial locking position, and the position on the first matching surface 1322 that last contacts the locking part 1221 is the terminal locking position. The distance between the terminal locking position and the bottom wall of the mounting cavity is greater than the distance between the initial locking position and the bottom wall of the mounting cavity.

[0054] When the locking part 1221 is pressed against the first matching surface 1322 to lock the filter core assembly 11, as shown in Figure 3 shown, the force provided by the first matching surface 1322 to the locking part 1221 can be decomposed into a first component F1 along the axis of the mounting cavity and a second component F2 parallel to the reference surface, effectively preventing the locking part 1221 from being separated from the limiting part 1321.

[0055] Further, in one embodiment, as shown in Figure 6 shown, the filter core assembly 11 is provided with a connector 112, the connector 112 is provided with a sealing ring, the connector 112 is suspended outside the filter core assembly 11, and the whole machine shell assembly 13 is provided with an interface 1324 that matches the connector 112, and the opening of the interface 1324 faces the same direction as the mounting cavity.

[0056] And the filter core assembly 11 is inserted into the mounting cavity along the axis of the mounting cavity, when the handle 12 is rotated forward, the locking part 1221 gradually presses against one side of the limiting part 1321 close to the bottom wall of the mounting cavity, and when the handle 12 is reversed, the dismounting part 1222 presses against the other side of the limiting part 1321 away from the bottom wall of the mounting cavity.

[0057] Based on the joint 112 is provided with a sealing ring, in the process of disassembling the filter element assembly 11, the sealing ring will hinder the relative movement between the joint 112 and the interface 1324. Thus, the required force is large, further need to use the first force saving lever and the second force saving lever, so that the required force on the handle 12 is small, improve the operation convenience.

[0058] Specifically, in one embodiment, as shown in Figure 1 The whole machine shell assembly 13 includes a support shell 131 and a waterway plate 132 connected with each other, and the mounting cavity is formed in the support shell 131. Specifically, the limiting part 1321 can be located on the waterway plate 132, or the limiting part 1321 is located on the support shell 131.

[0059] Specifically, in one embodiment, as shown in Figure 8 And Figure 9 The interface 1324 is formed on the waterway plate 132. The required force for inserting the joint 112 into the interface 1324 is larger than the required force for inserting the filter element assembly 11 into the mounting cavity. Therefore, in order to further improve the labor-saving effect, the limiting part 1321 is arranged on the waterway plate 132. Moreover, the length of the intermediate size chain can be effectively reduced, and the requirement for manufacturing precision is reduced.

[0060] Further, in one embodiment, as shown in Figures 1 to 6 The front surface of the waterway plate 132 faces the outer peripheral surface of the support shell 131, the limiting part 1321 is arranged on the waterway plate 132, and the waterway plate 132 is provided with the limiting part 1321 on the left and right sides.

[0061] The two locking parts 1221 on the handle 12 correspond to the two limiting parts 1321 respectively, and the two disassembly parts 1222 on the handle 12 correspond to the two limiting parts 1321 respectively.

[0062] Further specifically, as shown in Figure 8 And Figure 9 The interface 1324 is formed on the top surface of the waterway plate 132.

[0063] Further, as shown in Figure 6As shown, in one embodiment, the filter core assembly 11 is provided with a first end of the connector 112 as a leading end. The leading end is provided with a plurality of connectors 112 side by side and spaced apart, and the plurality of connectors 112 form a connector group. The interface 1324 is a plurality of interfaces, and the interface 1324 is provided one by one corresponding to the connector 112. The handle 12 is formed with two first force-saving levers and two second force-saving levers, and the filter core assembly 11 is provided with two support points for rotationally connecting with the handle 12, the support points are located at the leading end, and the two support points are respectively located on the two sides of the connector group 112. A longitudinal section passing through the central axis of the filter core assembly 11 and parallel to the arrangement direction of the plurality of connectors 112 is a first reference surface, and a longitudinal section passing through the support point and parallel to the first reference surface is a second reference surface, as Figure 10 As shown, the vertical distance h1 between the connector group and the second reference surface is less than the vertical distance h2 between the connector group and the first reference surface.

[0064] In other words, the support points are arranged closer to the connector group relative to the first reference surface, further strengthening the effect of the force acting on the connector 112 on the handle 12. Specifically, when the waterway plate 132 is arranged front to the support shell 131, the two support points are located on the filter core assembly 11 close to the waterway plate 132. And the two first force-saving levers and the two second force-saving levers on the handle 12 can further improve the labor-saving effect during operation.

[0065] Further, in one embodiment, as shown in Figure 8 and Figure 9 As shown, the waterway plate 132 is provided with two auxiliary plates 1325, and the two auxiliary plates 1325 are located on the left and right sides of the waterway plate 132. The auxiliary plate 1325 is suspended from the front surface of the waterway plate 132, and the limiting portion 1321 includes a protrusion located on the side of the auxiliary plate 1325 away from the support shell 131.

[0066] When the waterway plate 132 is assembled on the support shell 131, the two auxiliary plates 1325 are located on the two sides of the support shell 131. The two connecting segments 122 on the handle 12 are respectively located on the two sides of the auxiliary plate 1325, and the locking portion 1221 included in the connecting segment 122 corresponds to the limiting portion 1321 one by one, and the disassembly portion 1222 included in the connecting segment 122 also corresponds to the limiting portion 1321 one by one.

[0067] Furthermore, the outer peripheral surface of the support shell 131 is provided with a limiting rib, which is located on the side of the auxiliary plate 1325 near the bottom wall of the mounting cavity. Therefore, when the disassembly part 1222 presses against the surface of the limiting part 1321 away from the bottom wall of the mounting cavity, the limiting part 1321 and the auxiliary plate 1325 will not move towards the bottom wall of the mounting cavity, thus providing a reaction force to the disassembly part 1222, thereby removing the filter element assembly 11 from the mounting cavity, and simultaneously loosening the connector 112 from the interface 1324.

[0068] Specifically, such as Figure 7 As shown, in one embodiment, the handle 12 has an arc-shaped segment structure, with the gripping portion 1211 located on the middle gripping segment 121 of the handle 12. Both ends of the handle 12 are provided with the transition point, locking portion 1221, and disassembly portion 1222. The gripping portion 1211, together with the transition point and locking portion 1221 located at the same end of the handle 12, constitutes the first force-saving lever. The gripping portion 1211, together with the transition point and disassembly portion 1222 located at the same end of the handle 12, constitutes the second force-saving lever. Thus, two first force-saving levers and two second force-saving levers are formed on the handle 12. The housing assembly 13 is provided with two limiting portions 1321, each corresponding to one of the first force-saving levers and each corresponding to one of the second force-saving levers.

[0069] During operation, force is applied to the grip 1211, and the two first force-saving levers or the two second force-saving levers move synchronously, greatly reducing the amount of force required and improving the operating feel.

[0070] Furthermore, in one embodiment, such as Figure 7 As shown, a clearance groove 123 is provided between the locking part 1221 and the disassembly part 1222 at the same end of the handle 12. The opening of the clearance groove 123 is located on the end face of the handle 12. When the handle 12 rotates clockwise, the limiting part 1321 gradually enters the clearance groove 123 from the opening of the clearance groove 123, and the limiting part 1321 presses against the surface of the locking part 1221 that forms the clearance groove 123. When the handle 12 rotates counterclockwise, the limiting part 1321 gradually exits the clearance groove 123, and the limiting part 1321 presses against the surface of the disassembly part 1222 that forms the clearance groove 123.

[0071] When the limiting part 1321 is located in the relief groove 123, the disassembly part 1222 and the locking part 1221 are located on the upper and lower sides of the limiting part 1321, respectively. Here, the upper side of the limiting part 1321 refers to the side away from the bottom wall of the mounting cavity, and the lower side refers to the side close to the bottom wall of the mounting cavity.

[0072] Further specifically, as shown in Figures 1 to 5 , the locking portion 1221 is arranged opposite to the dismounting portion 1222, and the handle 12 further comprises a main body portion 1223 connecting the locking portion 1221 and the dismounting portion 1222, and the main body portion 1223, the locking portion 1221 and the dismounting portion 1222 enclose the accommodation slot 123. The connecting segment 122 of the handle 12 comprises the main body portion 1223, the locking portion 1221 and the dismounting portion 1222. The main body portion 1223 is connected to the intermediate gripping segment 121, and the position of the main body portion 1223 connected to the intermediate gripping segment 121 is closer to the dismounting portion 1222 relative to the locking portion 1221, and the transition point is located on the dismounting portion 1222. Therefore, as shown in Figure 1 and Figure 3 , the locking portion 1221 is arranged staggered to the intermediate gripping segment 121, and the cantilever formed by the locking portion 1221 and the main body portion 1223 connected to each other is suspended outside the intermediate gripping segment 121. During the locking process, when the locking portion 1221 is pressed against the limiting portion 1321, the stress at the connection between the locking portion 1221 and the main body portion 1223 is large, and the connection between the locking portion 1221 and the main body portion 1223 is prone to breakage. Based on this, further, as shown in Figure 7 , a reinforcing rib 125 is arranged at the connection between the main body portion 1223 and the locking portion 1221 to improve the strength of the cantilever.

[0073] Further, in an embodiment, as shown in Figure 7 , the thickness of the connection between the main body portion 1223 and the locking portion 1221 can be set to be greater than the thickness of other portions of the locking portion 1221, so as to increase the stress bearing capacity of the connection between the locking portion 1221 and the main body portion 1223 and improve the strength of the cantilever.

[0074] Further, in an embodiment, one of the connecting segment 122 and the filter element assembly 11 is provided with a rotating shaft 124, and the other is provided with a slot 111. For example, as shown in Figure 7 , the connecting segment 122 is provided with the rotating shaft 124, and as shown in Figure 10 and Figure 11 , the filter element assembly 11 is provided with the slot 111. The rotating shaft 124 is inserted into the slot 111, and the sidewall of the slot 111 is provided with a recess 1111, and the rotating shaft 124 is provided with a rotation stopping protrusion 1241 located in the recess 1111 for limiting the angle of rotation of the handle 12 relative to the filter element assembly 11.

[0075] In use, the handle 12 is only allowed to rotate within a certain range, and the filter element assembly 11 can be disassembled within the allowed rotation range, further improving the convenience of operation. For example, as shown in Figure 10 and Figure 11 When the handle 12 is reversed to the limit position during disassembly, the rotation stopping protrusion 1241 cannot continue to rotate in the reverse direction because it is in contact with the wall surface of the recess 1111, at which time the handle 12 is approximately in an axial distribution state along the installation cavity, and the limiting portion has exited the accommodation slot 123, so that the user can easily act on the intermediate gripping section 121 to pull out the filter element assembly 11.

[0076] Further, in an embodiment, as shown in Figures 1 to 6 The filter element assembly 11 is provided with a shell cover 14, which covers the opening of the installation cavity when the filter element assembly 11 is installed in the installation cavity.

[0077] Further, as shown in Figure 12 The end of the filter element assembly 11 is provided with a spring buckle assembly 15 with elastic reset capability. As shown in Figure 7 The intermediate gripping section 121 is provided with a bayonet 1212 matched with the spring buckle assembly 15. As shown in Figure 3 When the locking portion 1221 is pressed against the limiting portion 1321 so that the filter element assembly 11 is tightly pressed in the installation cavity, the spring buckle assembly 15 can be locked with the bayonet 1212.

[0078] After the spring buckle assembly 15 is locked with the bayonet 1212, the handle 12 cannot rotate relative to the filter element assembly 11, so that the locking portion 1221 on the handle 12 is always in contact with the limiting portion 1321, ensuring that the filter element assembly 11 is reliably installed in the installation cavity.

[0079] Specifically, in an embodiment, as shown in Figures 1 to 6 The handle 12 is arranged at the first end of the filter element assembly 11, the shell cover 14 is arranged on the end surface of the first end of the filter element assembly 11, and the shell cover 14 covers the spring buckle assembly 15 on the filter element assembly 11.

[0080] As shown in Figure 12 In an embodiment, when the filter element assembly 11 is locked in the installation cavity, the intermediate gripping section 121 of the handle 12 is just rotated to the position of the end of the filter element assembly 11. The spring buckle assembly 15 is located on the inner side of the intermediate gripping section 121, and the bayonet 1212 is located on the inner side surface of the intermediate gripping section 121 facing the spring buckle assembly 15.

[0081] Further, in one embodiment, as shown in Figure 12 A button 16 is arranged on the filter element assembly 11, and the pressing direction of the button 16 is along the axial direction of the installation cavity. As shown in Figure 13 The button 16 and the snap assembly 15 are in contact with each other through a slope, and the pressing movement of the button 16 is converted into the movement of the snap assembly 15 along the radial direction of the installation cavity, so that the snap assembly 15 exits the bayonet 1212.

[0082] When it is necessary to remove the filter element assembly 11, the button 16 is pressed, the snap assembly 15 moves along the radial direction of the installation cavity to exit the bayonet 1212, and then the handle 12 is reversed, and then the filter element assembly 11 is taken out.

[0083] Specifically, as shown in Figure 13 The snap assembly 15 is provided with a first slope 1511, which is arranged obliquely relative to the cross section of the installation cavity, and the distance between the part of the first slope 1511 away from the bottom wall of the installation cavity and the bayonet 1212 is greater than the distance between the part of the first slope 1511 close to the bottom wall of the installation cavity and the bayonet 1212. The button 16 is located on the side of the first slope 1511 facing the bayonet 1212. When the button 16 is pressed in the direction close to the bottom wall of the installation cavity, the button 16 applies a downward force to the first slope 1511, so that the snap assembly 15 moves in the direction of exiting the bayonet 1212.

[0084] The outer shell 14 is provided with a first perforation and a second perforation. When the outer shell 14 covers the filter element assembly 11, the button 16 can be exposed outside the outer shell 14 through the first perforation, so that the user can press the button 16, and the snap assembly 15 can be inserted into the bayonet 1212 through the second perforation.

[0085] Further, in one embodiment, as shown in Figure 13 The snap assembly 15 includes a first sliding block 151 and an elastic return member 152. As shown in Figure 12 The first sliding block 151 is arranged to slide relative to the filter element assembly 11, and the sliding direction is parallel to the cross section of the filter element assembly 11. The elastic return member 152 is located between the first sliding block 151 and the filter element assembly 11, and is used to provide a return force for the first sliding block 151 to slide in the direction close to the bayonet 1212. Specifically, the elastic return member 152 can be a compression spring, and the axis of the compression spring is parallel to the cross section of the filter element assembly 11.

[0086] Further, in another embodiment, as shown inFigure 14 As shown, the end of the filter element assembly 11 is provided with a sliding buckle 17, and the middle holding section 121 is provided with a socket matching the sliding buckle 17. When the locking portion 1221 is pressed against the limiting portion 1321 so that the filter element assembly 11 is tightly pressed in the installation cavity, the sliding buckle 17 can be slidably inserted into the socket.

[0087] When the handle 12 is turned to lock the filter element assembly 11 in the installation cavity, the socket is opposite to the sliding buckle 17, and the sliding buckle 17 is manually pushed to be inserted into the socket, so that the handle 12 cannot be rotated relative to the filter element assembly 11, so that the filter element assembly 11 can be reliably locked.

[0088] Further, in an embodiment, one of the sliding buckle 17 and the middle holding section 121 is provided with a buckle 171, and the other is provided with a matching part matching the buckle 171, and when the sliding buckle 17 is slid into the socket, the buckle 171 is buckled with the matching part.

[0089] Specifically, as shown in the drawings, Figure 15 The sliding buckle 17 is provided with the buckle 171. The middle holding portion 1211 is provided with a matching part. When the sliding buckle 17 is manually pushed to be inserted into the socket, the buckle 171 is matched with the matching part. Without actively releasing the matching state of the buckle 171 and the matching part, the sliding buckle 17 cannot be withdrawn from the socket, and the handle 12 cannot be rotated relative to the filter element assembly 11.

[0090] In the description of the present application, 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" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0091] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0092] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", "fixedly connected", "connection", "linking", "linking", "linking" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0093] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0094] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0095] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combination of the technical features does not exist Contradiction, it should be considered within the scope of the present application.

[0096] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of protection of the present application patent should be subject to the appended claims.

Claims

1. A water purifier characterized by comprising: The application relates to a filter device, which comprises a whole-machine shell assembly, a filter core assembly and a handle, the whole-machine shell assembly is provided with a mounting cavity and a limiting part, the filter core assembly is detachably mounted in the mounting cavity, the handle is provided with a holding part, a locking part and a dismounting part, the handle is rotationally connected with the filter core assembly through a switching point, when the holding part is forced to make the handle positively rotate relative to the filter core assembly, the locking part is pressed against the limiting part to make the filter core assembly tightly press in the mounting cavity, the holding part, the switching point and the locking part on the handle constitute a first labor-saving lever, when the holding part is forced to make the handle negatively rotate relative to the filter core assembly, the dismounting part is pressed against the limiting part to make the filter core assembly loosen from the mounting cavity, the holding part, the switching point and the dismounting part on the handle constitute a second labor-saving lever. A face of the limiting part, which is pressed against the dismounting part, is a second matching face, when the filter core assembly tightly presses in the mounting cavity, the dismounting part is spaced apart from the second matching face. A giving-way groove is arranged between the locking part and the dismounting part at the same end of the handle, an opening of the giving-way groove is located at an end face of the handle, when the handle is positively rotated, the limiting part gradually enters the giving-way groove from the opening of the giving-way groove, the limiting part is pressed against a face of the locking part, which is used for surrounding the giving-way groove, when the handle is negatively rotated, the limiting part gradually exits the giving-way groove, the limiting part is pressed against a face of the dismounting part, which is used for surrounding the giving-way groove.

2. The water purifier according to claim 1, characterized in that, A ratio between a power arm L1 and a resistance arm L2 of the first labor-saving lever is not less than 2.5, and / or a ratio between a power arm L3 and a resistance arm L4 of the second labor-saving lever is not less than 2.

5.

3. The water purifier according to claim 2, wherein A ratio between a power arm L1 and a resistance arm L2 of the first labor-saving lever is not less than 2.564, and / or a ratio between a power arm L3 and a resistance arm L4 of the second labor-saving lever is not less than 2.

564.

4. The water purifier according to claim 1, wherein A point of the locking part, which is pressed against the limiting part, is a first fulcrum of the first labor-saving lever, the first fulcrum is located at a side of the switching point, which is away from the holding part, a point of the dismounting part, which is pressed against the limiting part, is a second fulcrum of the second labor-saving lever, the second fulcrum is located at a side of the switching point, which is away from the holding part, with the handle being negatively rotated, a ratio between a power arm and a resistance arm of the second labor-saving lever gradually decreases.

5. The water purifier according to any one of claims 1 to 4, characterized in that, A connector is arranged on the filter core assembly, a sealing ring is arranged on the connector, the connector is suspended outside the filter core assembly, the whole-machine shell assembly is provided with an interface, which is matched with the connector, an opening of the interface is directed in the same direction as that of the mounting cavity, the filter core assembly is inserted into the mounting cavity along an axial direction of the mounting cavity, when the handle is positively rotated, the locking part is gradually pressed against a side of the limiting part, which is close to a bottom wall of the mounting cavity, when the handle is negatively rotated, the dismounting part is pressed against a side of the limiting part, which is close to an opening of the mounting cavity.

6. The water purifier according to claim 5, wherein The first end of the filter core assembly is provided with the joint, a plurality of joints are arranged side by side and spaced apart at the first end, the interface is a plurality of, the interface is arranged one by one corresponding to the joint, two first labor-saving levers and two second labor-saving levers are formed on the handle, two support points for rotationally connecting with the handle are arranged on the filter core assembly, the support points are located at the first end, a plurality of joints form a joint group, two support points are respectively located on the two sides of the joint group, a longitudinal section passing through the central axis of the filter core assembly and parallel to the arrangement direction of the plurality of joints is a first reference surface, a longitudinal section passing through the support point and parallel to the first reference surface is a second reference surface, the vertical distance between the joint group and the second reference surface is less than the vertical distance between the joint group and the first reference surface.

7. The water purifier according to claim 5, wherein The whole machine shell assembly includes a support shell and a waterway plate connected with each other, the mounting cavity is formed in the support shell, the front surface of the waterway plate faces the outer peripheral surface of the support shell, the limiting part is arranged on the waterway plate, the limiting part is located on the left and right sides of the waterway plate, and the interface is formed on the waterway plate.

8. The water purifier according to claim 7, characterized in that The waterway plate is provided with two auxiliary plates, the two auxiliary plates are located on the left and right sides of the waterway plate, the auxiliary plates are suspended from the front surface of the waterway plate, the limiting part includes a protrusion on the auxiliary plate and away from the side surface of the support shell, the outer peripheral surface of the support shell is provided with a limiting rib, and the limiting rib is limited to one side of the auxiliary plate close to the bottom wall of the mounting cavity.

9. The water purifier according to any one of claims 1 to 4, characterized in that, The handle is in an arc-shaped segment structure, the gripping part is located on the middle gripping segment of the handle, the two ends of the handle are respectively provided with the adapter point, the locking part and the dismounting part, the gripping part, the adapter point and the locking part located at the same end of the handle form the first labor-saving lever, the gripping part, the adapter point and the dismounting part located at the same end of the handle form the second labor-saving lever, the whole machine shell assembly is provided with two limiting parts, the limiting parts are arranged one by one corresponding to the first labor-saving lever, and the limiting parts are arranged one by one corresponding to the second labor-saving lever.

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