CN112642206A

CN112642206A - Water purifier

Info

Publication number: CN112642206A
Application number: CN202011565138.8A
Authority: CN
Inventors: 韦志远; 李冠轩; 舒毅; 申鸿海; 胡利波; 吉艳飞
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-04-13

Abstract

The invention relates to a water purifier, which comprises a whole shell assembly, a filter element assembly and a handle, wherein the whole shell assembly is provided with an installation cavity and a limiting part, the filter element assembly is detachably installed in the installation cavity, the handle is provided with a holding part, a locking part and a disassembling part, the handle is rotatably connected with the filter element assembly through an adapter, when the holding part is stressed to enable the handle to rotate forwards relative to the filter element assembly, the locking part is pressed against the limiting part to enable the filter element assembly to be tightly pressed in the installation cavity, the holding part, the adapter and the locking part on the handle form a first labor-saving lever, when the holding part is stressed to enable the handle to rotate backwards relative to the filter element assembly, the disassembling part is pressed against the limiting part to enable the filter element assembly to be loosened from the installation cavity, and the holding part, the adapter and the. The first labor-saving lever and the second labor-saving lever formed on the handle can play a labor-saving effect, and the operation convenience in the locking and dismounting processes is improved.

Description

Water purifier

Technical Field

The invention relates to the technical field of water purification equipment, in particular to a water purifier.

Background

The water purifier mainly comprises a filter element assembly and a complete machine shell assembly, wherein the filter element assembly is arranged in the complete machine shell assembly. The filter effect of a water purifier is mainly influenced by the filter element assembly filter capacity, and the filter element assembly needs to be maintained after being used for a period of time so as to maintain the filter capacity of the filter element assembly. Based on this, generally for dismantling between filter element group spare and the complete machine casing subassembly to be connected, and dismantle and the locking process is implemented with different structures respectively, so will lead to overall structure complicated, the dismouting process difficulty, operate not convenient enough problem.

Disclosure of Invention

Aiming at the problem that the filter element assembly in the water purifier is not convenient to disassemble and assemble, the invention provides the water purifier, which can meet the requirements of disassembling and assembling the filter element assembly without arranging a plurality of different structures, saves labor in the disassembling and assembling process and is convenient to operate.

A water purifier comprises a whole body shell component, a filter element component and a handle, wherein the whole body shell component is provided with an installation cavity and a limiting part, the filter element assembly is detachably arranged 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 element assembly through a switching point, when the handle rotates forwards relative to the filter element assembly under the stress of the holding part, the locking part is pressed against the limiting part to enable the filter element assembly to be tightly pressed in the mounting cavity, and the holding part, the transfer point and the locking part on the handle form a first labor-saving lever, when the handle is rotated reversely relative to the filter element assembly under the stress of the holding part, the disassembling part is pressed against the limiting part to loosen the filter element assembly from the mounting cavity, and the holding part, the transfer point and the disassembling part on the handle form a second labor-saving lever.

Above-mentioned scheme provides a purifier, two laborsaving levers of first laborsaving lever and second laborsaving lever have been formed on the handle, and wherein first laborsaving lever is used for locking filter element group spare in the installation cavity, the laborsaving lever of second is used for filter element group spare to dismantle the process. The structure integration that will be used for two processes of filter core locking and dismantlement is on a handle, simplifies the structure of whole purifier, moreover first laborsaving lever and the second laborsaving lever that forms on the handle also can play laborsaving effect, improves the operation convenience of locking and dismantlement process.

In one embodiment, 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.

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

In one embodiment, a point of the locking portion, which abuts against the limiting portion, is a first fulcrum of the first labor-saving lever, the first fulcrum is located on one side, away from the holding portion, of the transfer point, a point of the dismounting portion, which abuts against the limiting portion, is a second fulcrum of the second labor-saving lever, and the second fulcrum is located on one side, away from the holding portion, of the transfer point, and the ratio of the power arm to the resistance arm of the second labor-saving lever is gradually reduced along with the reverse rotation of the handle.

In one embodiment, the filter element assembly is provided with a joint, the joint is provided with a sealing ring, the joint is hung outside the filter element assembly, the whole casing assembly is provided with an interface matched with the joint, the direction of an opening of the interface is consistent with the direction of the installation cavity, the filter element assembly is inserted into the installation cavity along the axial direction of the installation cavity, when the handle rotates forwards, the locking part gradually abuts against one side, close to the bottom wall of the installation cavity, of the limiting part, and when the handle rotates backwards, the disassembling part abuts against one side, close to the opening of the installation cavity, of the limiting part.

In one embodiment, the filter element component is provided with a head end which is one end of the joint, the head end is provided with a plurality of connectors at intervals side by side, the number of the interfaces is a plurality, the interfaces and the connectors are arranged in one-to-one correspondence, two first labor-saving levers and two second labor-saving levers are formed on the handle, two supporting points for rotationally connecting the handle are arranged on the filter element component, the supporting points are positioned at the head end, the joints form a joint group, the two supporting points are respectively positioned at two sides of the joint group, the longitudinal section passing through the central shaft of the filter element component and parallel to the side-by-side arrangement direction of the joints is a first reference surface, the longitudinal section passing through the supporting points and parallel to the first reference surface is a second reference surface, the vertical distance between the joint set and the second reference surface is smaller than the vertical distance between the joint set and the first reference surface.

In one embodiment, the complete machine casing assembly comprises a supporting shell and a water channel plate which are connected with each other, the mounting cavity is formed in the supporting shell, the front face of the water channel plate faces the outer peripheral face of the supporting shell, the limiting parts are arranged on the water channel plate, the limiting parts are located on the left side and the right side of the water channel plate, and the interfaces are formed on the water channel plate.

In one embodiment, the water channel plate is provided with two auxiliary plates, the two auxiliary plates are positioned on the left side and the right side of the water channel plate, the auxiliary plates are suspended on the front surface of the water channel plate, the limiting part comprises a bulge positioned on the side surface of the auxiliary plate, which is far away from the supporting shell, the outer peripheral surface of the supporting shell is provided with a limiting rib, and the limiting rib is limited on one side, close to the bottom wall of the mounting cavity, of the auxiliary plate.

In one embodiment, the handle is of an arc-shaped structure, the holding portion is located on a middle holding section of the handle, the transfer point, the locking portion and the detaching portion are arranged at two ends of the handle, the holding portion and the transfer point and the locking portion which are located at the same end of the handle form the first labor-saving lever, the holding portion and the transfer point and the detaching portion which are located at the same end of the handle form the second labor-saving lever, two limiting portions are arranged on the whole casing assembly, the limiting portions and the first labor-saving lever are arranged in a one-to-one correspondence mode, and the limiting portions and the second labor-saving lever are arranged in a one-to-one correspondence mode.

In one embodiment, a yielding groove is arranged between a locking portion and a detaching portion which are located at the same end of the handle, an opening of the yielding groove is located on the end face of the handle, the limiting portion gradually enters the yielding groove from the opening of the yielding groove when the handle rotates forwards, the limiting portion is pressed on a face, used for enclosing the yielding groove, of the locking portion, and the limiting portion gradually exits the yielding groove when the handle rotates backwards, and the limiting portion is pressed on a face, used for enclosing the yielding groove, of the detaching portion.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a water purifier according to this embodiment;

FIG. 2 is an exploded view of the water purifier shown in FIG. 1;

FIG. 3 is a cross-sectional view of the water purifier in a locked state;

figures 4 and 5 are sectional views of the water purifier during disassembly;

FIG. 6 is a schematic structural diagram of a filter element assembly of the water purifier according to the present embodiment;

FIG. 7 is a schematic view of the handle of the present embodiment;

FIG. 8 is a schematic structural diagram of a water route board according to the present embodiment;

FIG. 9 is a schematic structural diagram of the water route board from another view angle;

FIG. 10 is a cross-sectional view of the water purifier with the handle pivoted to an extreme position relative to the filter element assembly;

FIG. 11 is an enlarged view of a portion of FIG. 10 at A;

FIG. 12 is a cross-sectional view of the water purifier with a snap assembly according to the embodiment;

fig. 13 is a schematic structural view of the snap assembly according to the present embodiment;

FIG. 14 is a schematic structural view of a water purifier according to another embodiment;

fig. 15 is a schematic structural view of the slider according to this embodiment.

Description of reference numerals:

10. a water purifier; 11. a filter element assembly; 111. a slot; 1111. recessing; 112. a joint; 12. a handle; 121. a middle holding section; 1211. a grip portion; 1212. a bayonet; 122. a connecting section; 1221. a locking portion; 1222. a detaching part; 1223. a main body portion; 123. a yielding groove; 124. a rotating shaft; 1241. a rotation stopping protrusion; 125. reinforcing ribs; 13. a complete machine shell assembly; 131. a support housing; 132. a water circuit board; 1321. a limiting part; 1322. a first mating surface; 1323. a second mating surface; 1324. an interface; 1325. an auxiliary plate; 14. a housing cover; 15. a snap assembly; 151. a first slider; 1511. a first inclined plane; 152. an elastic reset member; 16. a button; 17. sliding and buckling; 171. buckling; 18. a first fulcrum; 19. a second fulcrum.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In one embodiment, as shown in fig. 1 and 2, a water purifier 10 is provided, comprising a filter element assembly 11 and a handle 12, wherein the handle 12 is rotatably connected with the filter element assembly 11. The position of rotating and connecting the handle 12 with the filter element assembly 11 is an adapter point, and the position of rotating and connecting the handle 12 on the filter element assembly 11 is a supporting point.

Further, as shown in fig. 1, the water purifier 10 further includes a whole housing assembly 13. The whole machine shell assembly 13 is provided with an installation cavity, and the filter element assembly 11 is detachably installed in the installation cavity. Specifically, as shown in fig. 1 to 5, the filter element assembly 11 can be inserted into the installation cavity, and a force along the axial direction of the installation cavity is provided for the filter element assembly 11 through the handle 12 during the assembling and disassembling process, so that the filter element assembly 11 can be inserted into or pulled out of the installation cavity.

Further, as shown in fig. 2, the whole housing 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 detaching portion 1222. When the handle 12 rotates forward relative to the filter element assembly 11 under the action of the force of the grip 1211, the locking portion 1221 abuts against the limiting portion 1321 to press the filter element assembly 11 in the mounting cavity, and the grip 1211, the transfer point and the locking portion 1221 on the handle 12 form a first labor-saving lever. When the handle 12 is rotated reversely relative to the filter element assembly 11 by the force applied to the holding portion 1211, the disassembling portion 1222 is pressed against the limiting portion 1321 to loosen the filter element assembly 11 from the mounting cavity, and the holding portion 1211, the adapting point and the disassembling portion 1222 on the handle 12 form a second labor-saving lever.

According to the water purifier 10 provided by the scheme, the handle 12 is provided with the first labor-saving lever and the second labor-saving lever, the first labor-saving lever is used for the locking process of the filter element assembly 11, and the second labor-saving lever is used for the dismounting process of the filter element assembly 11. The structure that will be used for two processes of filter core locking and dismantlement is integrated on a handle 12, simplifies the structure of whole purifier 10, moreover first laborsaving lever and the second laborsaving lever that forms on handle 12 also can play laborsaving effect, improves the operation convenience of locking and dismantlement process.

Specifically, the forward rotation described herein may refer to the counterclockwise rotation of the handle 12 at the angle shown in fig. 1 and 3, where fig. 1 shows a state when the locking portion 1221 is just in contact with the limiting portion 1321, and fig. 3 shows a state when the filter element assembly 11 is fully pressed in the installation cavity, and the locking portion 1221 is fully pressed below the limiting portion 1321. The reverse rotation may refer to the handle 12 being rotated clockwise at an angle shown in fig. 4 and 5, the handle 12 being rotated reversely at the time of initial contact between the detachable portion 1222 of the handle 12 and the stopper portion 1321 in fig. 4, and the handle 12 being rotated to the time of initial release of the filter element assembly 11 in fig. 5.

Further, in one embodiment, as shown in fig. 1, the ratio between the power arm L1 and the resistance arm L2 of the first power saving lever is not less than 2.5.

As shown in fig. 4 and 5, the ratio between the power arm L3 and the resistance arm L4 of the second labor-saving lever is not less than 2.5.

Through inject the ratio between power arm and the resistance arm in the scope that is not less than 2.5, can make the dismantlement in-process, feel better. The ratio between the power arm and the resistance arm is too small, so that the labor-saving effect is not obvious, and the assembly and disassembly process is more laborious. Moreover, the resistance during disassembly is significant, and the ratio between the power arm and the resistance arm is set to be not less than 2.5 in order to keep the force acting on the handle 12 within a comfortable range.

Further specifically, in one embodiment, the ratio between the power arm L1 and the resistance arm L2 of the first labor-saving lever is not less than 2.564.

The ratio of the power arm L3 to the resistance arm L4 of the second labor-saving lever is not less than 2.564.

Particularly, when the filter element assembly 11 is provided with the joint 112 and the whole housing assembly 13 is provided with the interface 1324, the resistance of inserting the joint 112 into the interface 1324 is 60N, and the most comfortable force value of the handle 12 held by the human hand is 23.4N. The ratio of the power arm to the resistance arm required in a more comfortable state is 2.564, and when the ratio between the power arm and the resistance arm is not less than 2.564, the labor-saving effect is better, and the operation comfort is better.

Further, as shown in fig. 1, in an embodiment, a point of the locking portion 1221, which abuts against the limiting portion 1321, is a first fulcrum 18 of the first labor-saving lever, and the first fulcrum 18 is located on a side of the transfer point away from the holding portion 1211. In the assembling process, as shown in fig. 1 and fig. 3, after a downward acting force is applied to the holding portion 1211, with the help of the first labor-saving lever, the limiting portion 1321 provides support for the locking portion 1221, the handle 12 rotates with a point on the locking portion 1221, which abuts against the limiting portion 1321, as a fulcrum, and the switching point moves in a direction close to the bottom wall of the installation cavity to synchronously drive the filter element assembly 11 connected with the handle 12 to be pressed into the installation cavity.

Alternatively, the surface of the locking portion 1221 that abuts against the limiting portion 1321 may be located between the holding portion 1211 and the transfer point, as long as the holding portion 1211, the transfer point, and the locking portion 1221 on the handle 12 form a first labor-saving lever. For example, the switching point is located at one end of the handle 12, when the filter element assembly 11 is initially placed in the installation cavity, the handle 12 may be adjusted to a position where the holding portion 1211 is closer to the bottom wall of the installation cavity relative to the switching point, so that the locking portion 1221 is located at one side of the limiting portion 1321 close to the bottom wall of the installation cavity, and then an acting force in a direction away from the bottom wall of the installation cavity is applied to the holding portion 1211, and as the handle 12 rotates, the limiting portion 1321 provides a pressing-down acting force for the locking portion 1221, so that the switching point moves in a direction close to the bottom wall of the installation cavity, and then the filter element assembly 11 is installed and locked in the installation cavity.

Further, as shown in fig. 4 and 5, a point of the detaching portion 1222 abutting against the limiting portion 1321 is a second fulcrum 19 of the second labor-saving lever, and the second fulcrum 19 is located on a side of the adapting point away from the holding portion 1211.

When the disassembly is required, as shown in fig. 4 and 5, the upward lifting force is applied to the grip 1211 of the handle 12, and the disassembly portion 1222 is gradually pressed against the limiting portion 1321 by the second labor-saving lever. In the process of reverse rotation of the handle 12, the limiting portion 1321 provides support for the disassembling portion 1222, so that the handle 12 rotates with a point on the disassembling portion 1222, which is abutted against the limiting portion 1321, as a fulcrum, and the transfer point moves in a direction away from the bottom wall of the installation cavity to synchronously drive the filter element assembly 11 to be pulled out of the installation cavity.

Similarly, optionally, a surface of the detaching portion 1222 abutting against the stopper portion 1321 may also be located between the adapting point and the holding portion 1211. Similar to the above-mentioned solution, the surface of the detaching portion 1222 abutting against the limiting portion 1321 may also be located between the holding portion 1211 and the adaptor point. When the filter element assembly 11 is locked in the installation cavity, the disassembling portion 1222 is located at one side of the limiting portion 1321 far away from the bottom wall of the installation cavity, a downward pressure in the direction close to the bottom wall of the installation cavity is provided for the holding portion 1211 at the moment, the disassembling portion 1222 is pressed on the limiting portion 1321 in a propping manner, the switching point moves in the direction far away from the bottom wall of the installation cavity, and then the filter element assembly 11 is pulled out of the installation cavity.

Further, in one embodiment, as shown in fig. 1 to 6, a surface of the limiting portion 1321, which is pressed against the detaching portion 1222, is a second mating surface 1323. As shown in fig. 3, the removing portion 1222 is spaced from the second mating surface 1323 when the filter element assembly 11 is compressed in the mounting cavity. In other words, the detachment portion 1222 and the second engagement surface 1323 are not in contact at the initial stage of the inversion of the handle 12, and a virtual position exists between the detachment portion 1222 and the second engagement surface 1323, so that the limiting portion 1321 does not obstruct the inversion of the handle 12. After the handle 12 rotates by a predetermined angle, as shown in fig. 4, the detaching portion 1222 contacts the second mating surface 1323, and then the adapting point starts to move in a direction of exiting the mounting cavity, so as to improve the operation feel.

Further, in one embodiment, as shown in fig. 4 and 5, the ratio of the power arm to the resistance arm of the second labor saving lever decreases as the handle 12 is inverted.

Specifically, in order to further improve the operation feel and avoid the occurrence of a sudden and sudden increase in resistance, as shown in fig. 3 to 5, the surface of the detaching portion 1222 abutting against the second mating surface 1323 is an arc-shaped convex surface. So that the ratio of the power arm to the resistance arm of the second labor-saving lever is gradually reduced in the process of reversely rotating the handle 12. When the disassembling part 1222 is pressed against the second matching surface 1323, the filter element assembly 11 is just separated from the whole casing assembly 13, the acting force required by the filter element assembly 11 is large, and the ratio of the power arm to the resistance arm is large, so that the labor-saving ratio is large. Along with the handle 12 continues to rotate reversely, the acting force required by disassembling the filter element assembly 11 is reduced, the ratio of the power arm to the resistance arm is smaller, and the labor-saving ratio is reduced. Therefore, the force change required by the user to act on the handle 12 in the whole process is small, and the operation hand feeling is improved.

Further, in one embodiment, as shown in fig. 1 to 5 and 9, a surface of the limiting portion 1321, which is pressed against the locking portion 1221, is a first mating surface 1322. A plane perpendicular to the axis of the mounting cavity is a reference plane, and the first mating surface 1322 is obliquely arranged relative to the reference plane. When the handle 12 rotates forward, the position of the first engagement surface 1322 that first contacts the locking portion 1221 is the initial locking position, and the position of the first engagement surface 1322 that last contacts the locking portion 1221 is the final locking position. The distance between the stopping locking position and the bottom wall of the installation cavity is larger than the distance between the starting locking position and the bottom wall of the installation cavity.

When the locking part 1221 is pressed against the first mating surface 1322 to lock the filter element assembly 11, as shown in fig. 3, the force provided by the first mating surface 1322 to the locking part 1221 can be decomposed into a first component F1 in the axial direction of the installation cavity and a second component F2 parallel to the reference surface, which effectively prevents the locking part 1221 from being disengaged from the limiting part 1321.

Further, in one embodiment, as shown in fig. 6, a joint 112 is provided on the filter element assembly 11, the joint 112 is provided with a sealing ring, the joint 112 is suspended outside the filter element assembly 11, the complete housing assembly 13 is provided with an interface 1324 matched with the joint 112, and the opening direction of the interface 1324 is consistent with the direction of the installation cavity.

The filter element assembly 11 is inserted into the installation cavity along the axial direction of the installation cavity, when the handle 12 rotates forward, the locking portion 1221 gradually abuts against one side, close to the bottom wall of the installation cavity, of the limiting portion 1321, and when the handle 12 rotates backward, the dismounting portion 1222 abuts against one side, far away from the bottom wall of the installation cavity, of the limiting portion 1321.

Based on the connector 112 is provided with a sealing ring, in the process of disassembling and assembling the filter element assembly 11, the sealing ring can prevent the connector 112 and the interface 1324 from moving relatively. Therefore, the acting force required by disassembly and assembly is large, and the force required to act on the handle 12 is small by means of the first labor-saving lever and the second labor-saving lever, so that the operation convenience is improved.

Specifically, in one embodiment, as shown in fig. 1, the whole casing assembly 13 includes a supporting shell 131 and a waterway plate 132 connected to each other, and the mounting cavity is formed in the supporting shell 131. Specifically, the limiting portion 1321 may be located on the water passage plate 132, or the limiting portion 1321 may be located on the support shell 131.

Specifically, in one embodiment, as shown in fig. 8 and 9, the interface 1324 is molded onto the water circuit board 132. The force required to insert the adapter 112 into the interface 1324 is relatively large relative to the force required to insert the cartridge assembly 11 into the mounting cavity. Therefore, in order to further improve the labor saving effect, the stopper 1321 is provided on the water passage plate 132. And the length of the middle-size chain can be effectively reduced, and the requirement on manufacturing precision is reduced.

Further, in one embodiment, as shown in fig. 1 to 6, the front surface of the water channel plate 132 faces the outer circumferential surface of the support shell 131, the limiting portion 1321 is disposed on the water channel plate 132, and the limiting portions 1321 are disposed on both left and right sides of the water channel plate 132.

The two locking portions 1221 on the handle 12 correspond to the two limiting portions 1321 one by one, and the two detaching portions 1222 on the handle 12 correspond to the two limiting portions 1321 one by one.

More specifically, as shown in fig. 8 and 9, the interface 1324 is formed on the top surface of the water circuit board 132.

Further, as shown in fig. 6, in one embodiment, the end of the filter element assembly 11 on which the joint 112 is provided is a head end. The head ends are provided with a plurality of joints 112 at intervals side by side, and the joints 112 form a joint group. The number of the interfaces 1324 is plural, and the interfaces 1324 are arranged in one-to-one correspondence with the connectors 112. Two first labor-saving levers and two second labor-saving levers are formed on the handle 12, two supporting points are arranged on the filter element assembly 11 and used for being connected with the handle 12 in a rotating mode, the supporting points are located at the head end, and the two supporting points are located on two sides of the joint 112 group respectively. A longitudinal section passing through the central axis of the filter element assembly 11 and parallel to the direction in which the joints 112 are arranged side by side is a first reference surface, and a longitudinal section passing through the supporting point and parallel to the first reference surface is a second reference surface, as shown in fig. 10, a perpendicular distance h1 between the joint group and the second reference surface is smaller than a perpendicular distance h2 between the joint group and the first reference surface.

In other words, the arrangement of the support points closer to the joint group with respect to the first reference plane further enhances the effect of the forces on the handle 12 on the joint 112. Specifically, when the water passage plate 132 is disposed facing the support housing 131, two support points are located on the filter cartridge assembly 11 near the water passage plate 132. And the two first labor-saving levers and the two second labor-saving levers on the handle 12 can further improve the labor-saving effect during operation.

Further, in one embodiment, as shown in fig. 8 and 9, the water passage 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 water passage plate 132. The auxiliary plate 1325 overhangs the front surface of the water passage plate 132, and the limiting portion 1321 includes a protrusion located on a side surface of the auxiliary plate 1325 facing away from the support case 131.

When the water passage plate 132 is assembled to the support case 131, two auxiliary plates 1325 are positioned at both sides of the support case 131. The two connecting sections 122 on the handle 12 are respectively located at two sides of the auxiliary plate 1325, the locking portions 1221 included in the connecting sections 122 correspond to the limiting portions 1321 one by one, and similarly, the detaching portions 1222 included in the connecting sections 122 correspond to the limiting portions 1321 one by one.

Further, the outer peripheral surface of the supporting shell 131 is provided with a limiting rib, and the limiting rib is limited on one side of the auxiliary plate 1325 close to the bottom wall of the mounting cavity. So that when the dismounting portion 1222 is pressed against the limiting portion 1321 on the surface facing away from the bottom wall of the mounting cavity, the limiting portion 1321 and the auxiliary plate 1325 do not move toward the bottom wall of the mounting cavity, thereby providing a reaction force to the dismounting portion 1222 to dismount the filter element assembly 11 from the mounting cavity, and simultaneously releasing the connector 112 from the interface 1324.

Specifically, as shown in fig. 7, in one embodiment, the handle 12 has an arc-shaped section structure, the holding portion 1211 is located on the middle holding section 121 of the handle 12, and the two ends of the handle 12 are provided with the transfer point, the locking portion 1221 and the detaching portion 1222. The grip 1211 forms the first labor-saving lever with the transition point and the locking portion 1221 at the same end of the handle 12. The holding portion 1211 and the adapting point and the detaching portion 1222 located at the same end of the handle 12 constitute the second labor-saving lever. Thus forming two first and two second labor saving levers on the handle 12. The whole casing assembly 13 is provided with two limiting portions 1321, the limiting portions 1321 are arranged in one-to-one correspondence with the first labor-saving levers, and the limiting portions 1321 are arranged in one-to-one correspondence with the second labor-saving levers.

In the operation process, force is applied to the holding part 1211, and the two first labor-saving levers or the two second labor-saving levers move synchronously, so that the force application required to be provided is greatly reduced, and the operation hand feeling is improved.

Further, in one embodiment, as shown in fig. 7, an avoiding groove 123 is provided between the locking portion 1221 and the detaching portion 1222 at the same end of the handle 12, and an opening of the avoiding groove 123 is located at an end surface of the handle 12. When the handle 12 rotates forward, the limiting portion 1321 gradually enters the abdicating groove 123 from the opening of the abdicating groove 123, and the limiting portion 1321 presses against the surface of the locking portion 1221 for surrounding the abdicating groove 123. When the handle 12 rotates reversely, the limiting portion 1321 gradually exits from the receding groove 123, and the limiting portion 1321 abuts against the surface of the detaching portion 1222, which is used for surrounding the receding groove 123.

When the limiting portion 1321 is located in the receding groove 123, the detaching portion 1222 and the locking portion 1221 are located at upper and lower sides of the limiting portion 1321, respectively. Here, the upper side of the limiting portion 1321 refers to a side away from the bottom wall of the mounting cavity, and the lower side refers to a side close to the bottom wall of the mounting cavity.

More specifically, as shown in fig. 1 to 5, the locking portion 1221 is disposed opposite to the detaching portion 1222 at an interval, the handle 12 further includes a main body portion 1223, the main body portion 1223 connects the locking portion 1221 with the detaching portion 1222, and the main body portion 1223, the locking portion 1221 and the detaching portion 1222 enclose the avoiding groove 123. The connecting section 122 of the handle 12 includes the main body 1223, the locking portion 1221 and the detaching portion 1222. The main body portion 1223 is connected to the middle grip segment 121, the position of the main body portion 1223 connected to the middle grip segment 121 is closer to the detachable portion 1222 than the locking portion 1221, and the adaptor point is located on the detachable portion 1222. Therefore, as shown in fig. 1 and 3, the latching portion 1221 is disposed offset from the middle grip section 121, and a cantilever formed by connecting the latching portion 1221 and the body portion 1223 is suspended outside the middle grip section 121. In the locking process, when the locking portion 1221 abuts 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 fracture is likely to occur. Based on this, as shown in fig. 7, a reinforcing rib 125 is provided at a connection portion between the main body portion 1223 and the locking portion 1221, so that the strength of the cantilever is improved.

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

Further, in one embodiment, one of the connecting section 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 fig. 7, the connecting section 122 is provided with a rotating shaft 124, and as shown in fig. 10 and 11, the filter element assembly 11 is provided with a slot 111. The rotating shaft 124 is inserted into the insertion slot 111, a recess 1111 is formed on a side wall of the insertion slot 111, the rotating shaft 124 is provided with a rotation stopping protrusion 1241, and the rotation stopping protrusion 1241 is located in the recess 1111 and used for limiting a rotatable angle of the handle 12 relative to the filter element assembly 11.

In the using process, the handle 12 only rotates within a certain allowable range, and the filter element assembly 11 can be assembled and disassembled within the allowable rotating range, so that the convenience of operation is further improved. For example, as shown in fig. 10 and 11, when the handle 12 is turned to the extreme position during the disassembly process, the rotation-stopping protrusion 1241 interferes with the wall surface of the recess 1111 and cannot rotate continuously in the reverse direction, and at this time, the handle 12 is substantially in a state of being distributed along the axial direction of the installation cavity, and the limiting part has already exited the receding groove 123, so that the user can conveniently act on the middle holding section 121 to withdraw the filter element assembly 11.

Further, in one embodiment, as shown in fig. 1-6, the filter cartridge assembly 11 is provided with an outer housing cover 14, the outer housing cover 14 covering the opening of the mounting cavity when the filter cartridge assembly 11 is installed in the mounting cavity.

Further, as shown in fig. 12, the end of the filter element assembly 11 is provided with a snap assembly 15 having elastic restoring capability. As shown in fig. 7, a bayonet 1212 matched with the snap-fastener assembly 15 is provided on the middle holding section 121. As shown in fig. 3, when the locking portion 1221 abuts against the limiting portion 1321 so that the filter element assembly 11 is pressed in the mounting cavity, the elastic buckle assembly 15 can be locked with the bayonet 1212.

The latch assembly 15 with bayonet 1212 cooperates the locking back, handle 12 can not for filter element group spare 11 rotates, thereby locking portion 1221 on the handle 12 all the time with spacing portion 1321 supports tightly, ensures that filter element group spare 11 reliably install in the installation cavity.

Specifically, in one embodiment, as shown in fig. 1 to 6, the handle 12 is disposed at the head end of the filter element assembly 11, the housing cover 14 is disposed at the end face of the head end of the filter element assembly 11, and the housing cover 14 covers the latch assembly 15 on the filter element assembly 11.

In one embodiment, as shown in fig. 12, the central gripping section 121 of the handle 12 is just rotated to a position to fit over the end of the filter cartridge assembly 11 when the filter cartridge assembly 11 is locked in the mounting cavity. The snap-fastener assembly 15 is located on the inner side of the middle holding section 121, and the bayonet 1212 is located on the inner side of the middle holding section 121 facing the snap-fastener assembly 15.

Further, in one embodiment, as shown in fig. 12, the filter element assembly 11 is provided with a button 16, and the button 16 is pressed along the axial direction of the mounting cavity. As shown in fig. 13, the button 16 and the latch assembly 15 are mutually abutted by an inclined surface, so that the pressing motion of the button 16 is converted into the radial movement of the latch assembly 15 along the mounting cavity, so that the latch assembly 15 is withdrawn from the bayonet 1212.

When the filter element assembly 11 needs to be detached, the button 16 is pressed, the snap-fastener assembly 15 moves along the radial direction of the installation cavity to exit the bayonet 1212, then the handle 12 is reversed, and then the filter element assembly 11 is taken out.

Specifically, as shown in fig. 13, the snap-lock assembly 15 is provided with a first inclined surface 1511, the first inclined surface 1511 is disposed obliquely relative to the cross section of the mounting cavity, and a distance between a portion of the first inclined surface 1511 far away from the bottom wall of the mounting cavity and the bayonet 1212 is greater than a distance between a portion of the first inclined surface 1511 near the bottom wall of the mounting cavity and the bayonet 1212. The button 16 is located on a side of the first inclined surface 1511 facing the bayonet 1212. When the button 16 is pressed in a direction approaching the bottom wall of the mounting cavity, the button 16 applies a downward force to the first inclined surface 1511, so that the latch assembly 15 moves in a direction of exiting the bayonet 1212.

The housing cover 14 is provided with a first through hole and a second through hole, when the housing cover 14 covers the filter element assembly 11, the button 16 can be exposed outside the housing cover 14 through the first through hole, so that a user can press the button 16, and the snap assembly 15 can be inserted into the bayonet 1212 through the second through hole.

Further, in one embodiment, as shown in fig. 13, the latch assembly 15 includes a first slider 151 and an elastic restoring member 152. As shown in fig. 12, the first sliding block 151 is slidably disposed with respect to the filter element assembly 11, and the sliding direction is parallel to the cross section of the filter element assembly 11. The elastic restoring member 152 is located between the first sliding block 151 and the filter element assembly 11, and is configured to provide a restoring force for the first sliding block 151 to slide in a direction close to the bayonet 1212. In particular, the elastic return member 152 may be a compression spring, the axis of which is parallel to the cross section of the filter element assembly 11.

Further, in another embodiment, as shown in fig. 14, the end of the filter element assembly 11 is provided with a slide fastener 17, and the middle holding section 121 is provided with a socket matching with the slide fastener 17. When the locking portion 1221 abuts against the limiting portion 1321 so that the filter element assembly 11 is pressed in the mounting cavity, the slide fastener 17 can be slidably inserted into the socket.

When the handle 12 rotates forwards to the filter element assembly 11 and is locked in the installation cavity, the inserting opening is opposite to the sliding buckle 17, the sliding buckle 17 is pushed manually to enable the sliding buckle 17 to be inserted into the inserting opening, so that the handle 12 cannot rotate relative to the filter element assembly 11, and the filter element assembly 11 is reliably in a locking state.

Further, in one embodiment, one of the slide 17 and the intermediate grip segment 121 is provided with a catch 171, and the other is provided with a mating member that mates with the catch 171, and when the slide 17 slides into the receptacle, the catch 171 connects with the mating member catch 171.

Specifically, as shown in fig. 15, the buckle 171 is disposed on the slide buckle 17. The intermediate grip 1211 is provided with a fitting member. When the slider 17 is manually pushed to be inserted into the socket, the catch 171 is engaged with the mating member. Without actively releasing the engagement of the latch 171 with the mating member, the slider 17 cannot exit the socket, and the handle 12 cannot rotate relative to the filter element assembly 11.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a water purifier, its characterized in that includes complete machine casing subassembly, filter element group spare and handle, complete machine casing subassembly is equipped with installation cavity and spacing portion, filter element group spare detachably install in the installation cavity, the handle is equipped with portion of gripping, locking portion and dismantlement portion, the handle passes through the switching point and filter element group spare rotates to be connected, works as the portion of gripping atress makes the handle for filter element group spare corotation, locking portion support press in spacing portion so that filter element group spare compresses tightly in the installation cavity, the portion of gripping, switching point and the locking portion on the handle constitute first laborsaving lever, works as the portion of gripping atress makes the handle for filter element group spare corotation, the dismantlement portion support press in spacing portion so that filter element group spare is followed the release in the installation cavity, the portion of gripping on the handle, the portion of gripping, The switching point and the dismounting part form a second labor-saving lever.

2. The water purifier according to claim 1, wherein 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.

3. Water purifier according to claim 2, wherein the ratio between the power arm L1 and the resistance arm L2 of the first 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 saving lever is not less than 2.564.

4. The water purifier according to claim 1, wherein a point of the locking portion abutting against the limiting portion is a first fulcrum of the first labor-saving lever, the first fulcrum is located on a side of the transition point away from the holding portion, a point of the detaching portion abutting against the limiting portion is a second fulcrum of the second labor-saving lever, the second fulcrum is located on a side of the transition point away from the holding portion, and a ratio of a power arm to a resistance arm of the second labor-saving lever is gradually decreased as the handle rotates reversely.

5. The water purifier as recited in any one of claims 1 to 4, wherein a joint is provided on the filter element assembly, a seal ring is provided on the joint, the joint is suspended outside the filter element assembly, the casing assembly is provided with an interface matching the joint, the opening of the interface is oriented in the same direction as the installation cavity, the filter element assembly is inserted into the installation cavity along the axial direction of the installation cavity, the locking portion is gradually pressed against one side of the limiting portion close to the bottom wall of the installation cavity when the handle rotates forward, and the detaching portion is pressed against one side of the limiting portion close to the opening of the installation cavity when the handle rotates backward.

6. The water purifier according to claim 5, wherein said filter element assembly has a first end having said joint, a plurality of joints are spaced side by side at said first end, a plurality of said joints are provided at said interfaces, said interfaces are disposed in a one-to-one correspondence with said joints, said handle is formed with two first and two second labor-saving levers, said filter element assembly has two support points for rotating said handles, said support points are disposed at said first end and a plurality of said joints, said two support points are disposed at two sides of said joint assembly, said central axis of said filter element assembly is parallel to said plurality of joints, said longitudinal section of said joints in said side-by-side arrangement direction is a first reference plane, said longitudinal section of said support points parallel to said first reference plane is a second reference plane, and said vertical distance between said joint assembly and said second reference plane is smaller than said vertical distance between said joint assembly and said first reference plane .

7. The water purifier as recited in claim 5, wherein the complete machine housing assembly comprises a support shell and a water circuit board connected to each other, the mounting cavity is formed in the support shell, a front surface of the water circuit board faces an outer peripheral surface of the support shell, the limiting portions are arranged on the water circuit board, the limiting portions are located on left and right sides of the water circuit board, and the ports are formed on the water circuit board.

8. The water purifier as recited in claim 7, wherein the water circuit board is provided with two auxiliary boards, the two auxiliary boards are located on the left and right sides of the water circuit board, the auxiliary boards are suspended from the front surface of the water circuit board, the limiting portion comprises a protrusion located on the side surface of the auxiliary board facing away from the support shell, the outer peripheral surface of the support shell is provided with a limiting rib, and the limiting rib is limited on the side surface of the auxiliary board close to the bottom wall of the installation cavity.

9. The water purifier according to any one of claims 1-4, wherein the handle has an arc-shaped structure, the holding portion is located on a middle holding section of the handle, the two ends of the handle are provided with the transfer point, the locking portion and the detaching portion, the holding portion and the transfer point and the locking portion located at the same end of the handle form the first labor-saving lever, the holding portion and the transfer point and the detaching portion located at the same end of the handle form the second labor-saving lever, the whole housing assembly is provided with two limiting portions, the limiting portions and the first labor-saving lever are arranged in a one-to-one correspondence manner, and the limiting portions and the second labor-saving lever are arranged in a one-to-one correspondence manner.

10. The water purifier according to claim 9, wherein a step-down groove is provided between the locking portion and the detaching portion at the same end of the handle, an opening of the step-down groove is located at an end surface of the handle, the limiting portion gradually enters the step-down groove from the opening of the step-down groove when the handle rotates forward, the limiting portion abuts against a surface of the locking portion for enclosing the step-down groove, the limiting portion gradually exits the step-down groove when the handle rotates backward, and the limiting portion abuts against a surface of the detaching portion for enclosing the step-down groove.