Water purifier

Abstract

The present invention relates to a water purifier, which includes a filter element assembly, a water circuit board and a handle. The filter element assembly is provided with a connector, the water circuit board is provided with an interface matching the connector, and the water circuit board is provided with a limiting portion. The handle is rotatably connected to the filter element assembly, and the handle is provided with a locking portion and a disassembly portion. When the handle rotates forward relative to the filter element assembly, the locking portion presses against the limiting portion so that the connector is inserted into and tightly pressed in the interface. When the handle rotates reversely relative to the filter element assembly, the disassembly portion presses against the limiting portion so that the connector is pulled out of the interface. Based on the fact that the limiting portion is directly arranged on the water circuit board and the handle is directly arranged on the filter element assembly, the cooperation relationship between the handle and the limiting portion can be used to directly align and lock the connector and the interface, or directly separate them, minimizing the intermediate dimension chain and reducing the possibility of intermediate assembly errors, thereby reducing the requirements for the machining of each part and reducing the machining difficulty.

Description

Technical Field

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

[0002] In water purification equipment, it generally includes a water circuit board and a filter element assembly. The joints on the filter element assembly are correspondingly communicated with the interfaces on the water circuit board, so that the raw water in the external tap water pipe can flow into the filter element assembly, and at the same time, the pure water or concentrated water formed by filtering the filter element assembly can be discharged from the filter element assembly to ensure the smooth progress of the filtering process. In order to avoid water leakage at the connection between the joint and the interface, the tightness of the connection between the joint and the interface is relatively high, resulting in a large resistance when the filter element assembly is assembled into the whole machine housing assembly of the water purifier. To improve the convenience of disassembly and assembly, a disassembly and locking structure is generally provided between the filter element assembly and the whole machine housing assembly. However, due to the long intermediate dimension chain, to ensure the final assembly accuracy, the machining accuracy of each part in the intermediate dimension chain needs to be relatively high, resulting in a large machining difficulty. Summary of the Invention

[0003] In view of the problems of high requirements for machining accuracy and large machining difficulty, the present invention provides a water purifier, which reduces the intermediate dimension chain and the possibility of intermediate assembly errors, thereby reducing the requirements for the machining of each part and reducing the machining difficulty.

[0004] A water purifier includes a filter element assembly, a water circuit board and a handle. The filter element assembly is provided with joints, the water circuit board is provided with interfaces matching the joints, the water circuit board is provided with a limiting portion, the handle is rotatably connected to the filter element assembly, and the handle is provided with a locking portion and a disassembly portion. When the handle rotates forward relative to the filter element assembly, the locking portion presses against the limiting portion to insert and press the joint into the interface. When the handle rotates backward relative to the filter element assembly, the disassembly portion presses against the limiting portion to pull out the joint from the interface.

[0005] The above scheme provides a water purifier, based on the fact that the limiting part is directly arranged on the waterway plate, and the handle is directly arranged on the filter element assembly, so that the fitting relationship between the handle and the limiting part can make the connector and the interface directly aligned and locked, or directly disengaged, so as to minimize the intermediate dimension chain and reduce the possibility of intermediate assembly errors, thereby reducing the requirements for processing each part and reducing the processing difficulty. Specifically, during the assembly process, the connector on the filter element assembly is first aligned with the interface on the waterway plate, and then the handle is rotated forward so that the locking part is pressed against the limiting part until the connector is inserted and pressed into the interface. In the absence of other external forces, the connector on the filter element assembly and the interface on the waterway plate are always in a connected state. When it is necessary to disassemble the connector and the interface, the handle is reversed so that the disassembly part is pressed against the limiting part to pull the connector out of the interface.

[0006] In one of the embodiments, the joint is provided with a sealing ring, and when the joint is inserted into the interface, the sealing ring is pressed between the joint and the side wall of the interface.

[0007] In one embodiment, the handle is provided with a gripping portion, the position on the handle that is rotatably connected to the filter element assembly is a transition point, the gripping portion, transition point and locking portion on the handle constitute a first labor-saving lever, and the gripping portion, transition point and disassembly portion on the handle constitute a second labor-saving lever.

[0008] In one embodiment, the surface of the locking portion that presses against the limiting portion is located on the side of the transition point away from the holding portion, and the surface of the disassembly portion that presses against the limiting portion is located on the side of the transition point away from the holding portion.

[0009] In one embodiment, the handle includes a middle gripping section and connecting sections located at both ends of the middle gripping section, the gripping portion is located on the middle gripping section, the two connecting sections are clamped on both sides of the filter element assembly, the two connecting sections are provided with the transfer points, the two connecting sections include the locking portion and the disassembly portion, and the waterway plate is provided with two limiting portions, the two limiting portions are respectively located on the left and right sides of the filter element assembly and correspond to the two connecting sections respectively.

[0010] In one embodiment, a clearance groove is provided between the locking portion and the disassembly portion, and when the handle rotates forward, the limiting portion gradually enters the clearance groove from the opening of the clearance groove until the locking portion presses against the limiting portion so that the connector is inserted into and pressed into the interface; when the handle is reversed, the limiting portion gradually withdraws from the opening of the clearance groove, and the disassembly portion gradually presses against the limiting portion until the connector is pulled out of the interface.

[0011] In one embodiment, the connecting section further includes a main body section connecting the locking section and the dismounting section. The locking section and the dismounting section are spaced apart. The main body section, the locking section and the dismounting section define the relief groove. The main body section is connected to the holding section. The position on the main body section connected to the holding section is closer to the dismounting section than to the locking section. The transfer point is located on the dismounting section. A reinforcing rib is provided at the connection between the main body section and the locking section.

[0012] In one embodiment, one end of the filter element assembly where the joint is provided is the head end. The position on the filter element assembly for rotatably connecting with the handle is the support point. The support point is located at the head end of the filter element assembly. The joint hangs outside the head end of the filter element assembly. The outlet of the joint faces the tail end of the filter element assembly along the axial direction of the filter element assembly. The interface is located on the top surface of the water circuit board. The limiting portion is located at the top of the water circuit board.

[0013] In one embodiment, two auxiliary plates are provided on the water circuit board. The surface of the water circuit board facing the filter element assembly is the front surface. The auxiliary plates extend to the front surface of the water circuit board. The two auxiliary plates are respectively located on the left and right sides of the water circuit board. The limiting portion includes protrusions located on the side surfaces of the auxiliary plates facing away from the filter element assembly.

[0014] In one embodiment, the surface of the limiting portion pressing against the locking section is the first mating surface. In the direction close to the water circuit board, the first mating surface gradually extends towards the top surface of the water circuit board.

[0015] In one embodiment, the surface of the limiting portion pressing against the dismounting section is the second mating surface. When the joint is inserted and pressed into the interface, there is a gap between the dismounting section and the second mating surface.

[0016] In one embodiment, it further includes a support shell. The support shell defines an installation cavity. The filter element assembly is inserted into the installation cavity. The orientation of the installation cavity is the same as that of the interface. The water circuit board is connected to the support shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Structural schematic diagram of the water purifier described in this embodiment;

[0020] Figure 2 For Figure 1 Exploded view of the water purifier shown;

[0021] Figure 3 Cross-sectional view of the water purifier when the joint is tightly inserted into the interface;

[0022] Figure 4 And Figure 5 Cross-sectional view of the water purifier during the disassembly process;

[0023] Figure 6 Structural schematic diagram of the filter element assembly in the water purifier described in this embodiment;

[0024] Figure 7 Structural schematic diagram of the handle described in this embodiment;

[0025] Figure 8 Structural schematic diagram of the water circuit board described in this embodiment;

[0026] Figure 9 Structural schematic diagram of the water circuit board from another perspective;

[0027] Figure 10 Cross-sectional view of the water purifier when the handle rotates to the limit position relative to the filter element assembly;

[0028] Figure 11 For Figure 10 Local enlarged view of part A in

[0029] Figure 12 Cross-sectional view of the snap component in the water purifier described in this embodiment;

[0030] Figure 13 Structural schematic diagram of the snap component described in this embodiment;

[0031] Figure 14 Structural schematic diagram of the water purifier described in another embodiment;

[0032] Figure 15 Structural schematic diagram of the sliding buckle described in this embodiment.

[0033] Explanation of reference numerals:

[0034] 10. Water purifier; 11. Filter element assembly; 111. Slot; 1111. Depression; 112. Connector; 12. Handle; 121. Middle holding section; 1211. Holding part; 1212. Bayonet; 122. Connection section; 1221. Locking part; 1222. Disassembly part; 1223. Main body part; 123. Relief groove; 124. Rotating shaft; 1241. Anti-rotation protrusion; 125. Reinforcing rib; 13. Whole machine housing assembly; 131. Support shell; 132. Water circuit board; 1321. Limiting part; 1322. First mating surface; 1323. Second mating surface; 1324. Interface; 1325. Auxiliary board; 14. Outer shell cover; 15. Elastic buckle assembly; 151. First slider; 1511. First inclined surface; 152. Elastic reset member; 16. Button; 17. Sliding buckle; 171. Buckle. Detailed implementation manner

[0035] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manner of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0036] As Figures 1 to 5 shown, in one embodiment, a water purifier 10 is provided, which includes a filter element assembly 11 and a handle 12, and the handle 12 is rotatably connected to the filter element assembly 11. The position on the handle 12 where it is rotatably connected to the filter element assembly 11 is the transfer point, and the position on the filter element assembly 11 where it is rotatably connected to the handle 12 is the support point.

[0037] Further, as Figure 6 shown, the filter element assembly 11 is provided with a connector 112. The water purifier 10 further includes a water circuit board 132. As Figure 8 and Figure 9 shown, the water circuit board 132 is provided with an interface 1324 that matches the connector 112. As Figures 1 to 5 shown, the connector 112 on the filter element assembly 11 can be inserted into the interface 1324, so that the raw water can enter the filter element assembly 11, and at the same time, the filtered pure water can be discharged from the filter element assembly 11.

[0038] Further, the water circuit board 132 is provided with a limiting part 1321, and the handle 12 is provided with a locking part 1221 and a disassembly part 1222. As Figure 1 and Figure 3As shown, when the handle 12 rotates clockwise relative to the filter element assembly 11, the locking portion 1221 presses against the limiting portion 1321 so that the joint 112 is inserted and pressed tightly into the interface 1324. Specifically, the clockwise rotation mentioned here can refer to the counterclockwise rotation of the handle 12 at an angle as shown in Figure 1 and Figure 3 As shown, when the handle 12 rotates counterclockwise relative to the filter element assembly 11, the disassembly portion 1222 presses against the limiting portion 1321 so that the joint 112 is pulled out of the interface 1324. Specifically, the counterclockwise rotation mentioned here can refer to the clockwise rotation of the handle 12 at an angle as shown in Figure 1 Figure 6 shows the state when the locking portion 1221 just starts to contact the limiting portion 1321. As shown in Figure 3 Figure 8 shows the state when the joint 112 is completely pressed tightly in the interface 1324 and the locking portion 1221 is completely pressed below the limiting portion 1321.

[0039] As shown in Figure 4 and Figure 5 As shown, when the handle 12 rotates counterclockwise relative to the filter element assembly 11, the disassembly portion 1222 presses against the limiting portion 1321 so that the joint 112 is pulled out of the interface 1324. Specifically, the counterclockwise rotation mentioned here can refer to the clockwise rotation of the handle 12 at an angle as shown in Figure 4 and Figure 5 As shown, when the handle 12 rotates clockwise relative to the filter element assembly 11, the disassembly portion 1222 presses against the limiting portion 1321 so that the joint 112 is pulled out of the interface 1324. Specifically, the clockwise rotation mentioned here can refer to the clockwise rotation of the handle 12 at an angle as shown in Figure 4 Figure 21 shows the state when the disassembly portion 1222 on the handle 12 initially contacts the limiting portion 1321 during counterclockwise rotation. Figure 5 Figure 22 shows the state when the handle 12 rotates until the joint 112 is loosened from the interface 1324.

[0040] The above solution provides a water purifier 10. Based on the fact that the limiting portion 1321 is directly provided on the water circuit board 132 and the handle 12 is directly provided on the filter element assembly 11, the mating relationship between the handle 12 and the limiting portion 1321 can be used to directly align and lock the joint 112 with the interface 1324, or directly separate them, minimizing the intermediate dimensional chain and reducing the possibility of intermediate assembly errors. Thus, the requirements for the machining of each part are reduced and the machining difficulty is lowered. Specifically, during the assembly process, first align the joint 112 on the filter element assembly 11 with the interface 1324 on the water circuit board 132, and then rotate the handle 12 clockwise so that the locking portion 1221 presses against the limiting portion 1321 until the joint 112 is inserted and pressed tightly into the interface 1324. Without the action of other external forces, the joint 112 on the filter element assembly 11 and the interface 1324 on the water circuit board 132 are always in a connected state. When it is necessary to disassemble the joint 112 from the interface 1324, rotate the handle 12 counterclockwise so that the disassembly portion 1222 presses against the limiting portion 1321 to pull the joint 112 out of the interface 1324.

[0041] In order to make the waterway plate 132 withstand higher water pressure, the waterway plate 132 is generally manufactured with higher strength. Then, the limiter 1321 is arranged on the waterway plate 132, which can effectively ensure the overall strength during the disassembly and assembly process and improve the stress condition of the whole machine.

[0042] Furthermore, in order to ensure the sealing reliability when the joint 112 is connected to the interface 1324, in one embodiment, Figure 6 As shown, the joint 112 is provided with a sealing ring. When the joint 112 is inserted into the interface 1324 , the sealing ring is pressed between the joint 112 and the side wall of the interface 1324 .

[0043] The provision of the sealing ring will hinder the relative movement between the joint 112 and the interface 1324, thereby requiring a larger force for assembly and disassembly.

[0044] Based on this, further, in one embodiment, Figure 7 As shown, the handle 12 is provided with a gripping portion 1211, and the gripping portion 1211, the transition point and the locking portion 1221 on the handle 12 constitute a first effort-saving lever. Specifically, the surface of the locking portion 1221 that presses against the limiting portion 1321 is located on the side of the transition point away from the gripping portion 1211. During the assembly process, Figure 1 and Figure 3 As shown, after the gripping portion 1211 applies a downward force, the limiting portion 1321 provides support for the locking portion 1221 with the aid of the first effort-saving lever, and the handle 12 rotates with the point on the locking portion 1221 that presses against the limiting portion 1321 as a fulcrum, and the transfer point moves relative to the waterway plate 132, synchronously driving the filter element assembly 11 connected to the handle 12 to move relative to the waterway plate 132, so that the connector 112 is inserted into the interface 1324. By utilizing the principle of lever effort-saving, the force required to act on the gripping portion 1211 is effectively reduced, making the operation process more convenient.

[0045] Optionally, the surface of the locking portion 1221 that presses against the limiting portion 1321 may also be located between the holding portion 1211 and the transfer point of the handle 12, 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 transfer point is located at one end of the handle 12. When the joint 112 is initially aligned with the interface 1324, the handle 12 can be adjusted first so that the locking portion 1221 is located on the side of the limiting portion 1321 away from the joint 112, and then a force in the direction close to the joint 112 is applied to the holding portion 1211. As the handle 12 rotates, the limiting portion 1321 provides a pressing force for the locking portion 1221, causing the transfer point to move relative to the water circuit board 132, and simultaneously driving the filter element assembly 11 connected to the handle 12 to move relative to the water circuit board 132, so that the joint 112 is inserted into the interface 1324.

[0046] Further, as Figure 7 shown, the holding portion 1211, the transfer point, and the disassembly portion 1222 on the handle 12 form a second labor-saving lever. Specifically, the surface of the disassembly portion 1222 that presses against the limiting portion 1321 is located on the side of the transfer point away from the holding portion 1211. As Figure 3 shown is the state when the joint 112 is installed in the interface 1324. At this time, the limiting portion 1321 is in tight contact with the locking portion 1221. When disassembly is required, as Figure 4 and Figure 5 shown, an upward lifting force is applied to the holding portion 1211 of the handle 12. With the help of the second labor-saving lever, the disassembly portion 1222 gradually presses against the limiting portion 1321. During the reverse rotation of the handle 12, the limiting portion 1321 provides support for the disassembly portion 1222, causing the handle 12 to rotate with the point where the disassembly portion 1222 presses against the limiting portion 1321 as the fulcrum, the transfer point moves relative to the water circuit board 132, and simultaneously drives the filter element assembly 11 to move relative to the water circuit board 132, so that the joint 112 is pulled out of the interface 1324.

[0047] Similarly, optionally, the surface of the disassembly portion 1222 that presses against the limiting portion 1321 may also be located between the transition point and the holding portion 1211. This is similar to the solution described above that the surface of the disassembly portion 1222 that presses against the limiting portion 1321 may also be located between the holding portion 1211 and the transition point. When the connector 112 is installed in the interface 1324, the limiting portion 1321 and the disassembly portion 1222 are sequentially arranged in the direction of the interface 1324, and at this time, a downward pressure in the opposite direction of the interface 1324 is provided to the holding portion 1211, and the disassembly portion 1222 presses against the limiting portion 1321, and the transition point moves upward in the direction of the interface 1324, thereby causing the filter element assembly 11 to move relative to the waterway plate 132 in the direction of the interface 1324, so that the connector 112 is pulled out of the interface 1324.

[0048] Furthermore, if Figure 6 As shown, in one embodiment, the end of the filter element assembly 11 provided with the connector 112 is the head end, the support point is located at the head end of the filter element assembly 11, the connector 112 is suspended outside the head end of the filter element assembly 11, and the outlet of the connector 112 is axially directed toward the tail end of the filter element assembly 11. Figure 8 and Figure 9 As shown, the interface 1324 is located on the top surface of the waterway plate 132, and the limiting portion 1321 is located on the top of the waterway plate 132. The direction of plugging and unplugging the connector 112 is the axial direction of the filter element assembly 11.

[0049] like Figure 1 and Figure 3 As shown, during the assembly process, the locking portion 1221 gradually presses against the side of the limiting portion 1321 close to the rear end of the filter element assembly 11, so that the connector 112 is tightly inserted into the interface 1324. Figure 4 and Figure 5 As shown, during the disassembly process, the disassembly portion 1222 presses against the side of the limiting portion 1321 away from the rear end of the filter element assembly 11 .

[0050] More specifically, if Figure 8 and Figure 9 As shown, in one embodiment, two auxiliary plates 1325 are provided on the waterway plate 132. The front of the waterway plate 132 faces the filter element assembly 11, and the auxiliary plates 1325 extend to the front of the waterway plate 132. The two auxiliary plates 1325 are respectively located on the left and right sides 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 filter element assembly 11.

[0051] During the disassembly and assembly process, the disassembly part 1222 and the locking part 1221 are mainly located on the side of the auxiliary plate 1325 away from the filter element assembly 11. During the rotation of the handle 12, the positions of the disassembly part 1222 and the locking part 1221 change relative to the limiting part 1321, thereby realizing disassembly and assembly.

[0052] Further, as Figure 3 shown, in one embodiment, the surface of the limiting part 1321 that abuts against the locking part 1221 is the first mating surface 1322, and in the direction close to the water circuit board 132, the first mating surface 1322 gradually extends towards the top surface of the water circuit board 132.

[0053] When the locking part 1221 abuts against the first mating surface 1322 to lock the filter element assembly 11, as Figure 3 shown, the force provided by the first mating surface 1322 for the locking part 1221 can be decomposed into a first component force F1 along the axial direction of the filter element assembly 11 and a second component force F2 perpendicular to the water circuit board 132. In other words, the limiting part 1321 not only provides the first component force F1 for the handle 12 and the filter element assembly 11 to insert the joint 112 tightly into the interface 1324, but also provides the second component force F2 for the handle 12 and the filter element assembly 11 to press against the water circuit board 132, ensuring reliable locking between the handle 12 and the limiting part 1321.

[0054] Further, as Figure 8 and Figure 9 shown, in one embodiment, the surface of the limiting part 1321 that abuts against the disassembly part 1222 is the second mating surface 1323. As Figure 3 shown, when the joint 112 is inserted and pressed tightly into the interface 1324, there is a spaced arrangement between the disassembly part 1222 and the second mating surface 1323. In other words, at the initial stage of the reverse rotation of the handle 12, the disassembly part 1222 does not contact the second mating surface 1323, and there is a certain clearance between them, and the limiting part 1321 does not hinder the reverse rotation of the handle 12. When the handle 12 rotates a preset angle, as Figure 4 shown, the disassembly part 1222 just contacts the second mating surface 1323, and then the transfer point starts to move relative to the water circuit board 132, improving the operation feel.

[0055] Specifically, in order to further improve the operation feel and avoid the situation of sudden large and small resistance, as Figures 3 to 5As shown, the surface of the disassembly part 1222 that presses against the second mating surface 1323 is an arc convex surface. Thus, during the process of reversing the handle 12, the length of the resistance arm of the second force-saving lever gradually increases. When the disassembly part 1222 begins to press against the second mating surface 1323, the joint 112 and the interface 1324 just start to move relative to each other, and the required acting force is large, and the ratio of the power arm to the resistance arm is large, so the force-saving ratio is large. As the handle 12 continues to reverse, the tightness of the extrusion between the joint 112 and the interface 1324 decreases, the required acting force decreases, and the ratio of the power arm to the resistance arm is small, and the force-saving ratio becomes smaller. Thus, the force that the user needs to act on the handle 12 changes little during the whole process, improving the operation feel.

[0056] Further, in one embodiment, as Figure 1 shown, the water purifier 10 further includes a support shell 131. The support shell 131 encloses an installation cavity, and the filter element assembly 11 is inserted into the installation cavity. The orientation of the installation cavity is the same as the orientation of the interface 1324. The water circuit board 132 is connected to the support shell 131 to form the whole machine housing assembly 13.

[0057] Specifically, during the assembly process, as Figure 1 shown, first, the filter element assembly 11 is preliminarily inserted into the installation cavity, the joint 112 is aligned with the interface 1324, and then the handle 12 is rotated forward. The locking part 1221 presses against the limiting part 1321, and the transfer point on the handle 12 moves relative to the water circuit board 132. Since the water circuit board 132 is connected to the support shell 131, the transfer point also moves relative to the support shell 131 at the same time. Further, while the joint 112 is locked in the interface 1324, the filter element assembly 11 is installed and locked in the installation cavity.

[0058] Similarly, during the process of reversing the handle 12, while the joint 112 is pulled out from the interface 1324, the filter element assembly 11 is pulled out a certain distance from the installation cavity, so that the filter element assembly 11 is loosened relative to the water circuit board 132 and the support shell 131.

[0059] Further, as Figures 3 to 5 shown, a limiting rib is provided on the outer peripheral surface of the support shell 131, and the limiting rib is limited to the side of the auxiliary plate 1325 close to the bottom wall of the installation cavity. Thus, when the disassembly part 1222 presses against the surface of the limiting part 1321 facing away from the bottom wall of the installation cavity, the limiting part 1321 and the auxiliary plate 1325 will not move towards the direction close to the bottom wall of the installation cavity, so as to provide a reaction force for the disassembly part 1222, and the filter element assembly 11 is disassembled from the installation cavity, and at the same time, the joint 112 is loosened from the interface 1324.

[0060] Further, in one embodiment, if Figure 7 As shown, the handle 12 includes a middle gripping section 121 and connecting sections 122 located at both ends of the middle gripping section 121. The gripping portion 1211 is located on the middle gripping section 121, and the two connecting sections 122 are clamped on both sides of the filter element assembly 11. The two connecting sections 122 are provided with the transfer points, and the two connecting sections 122 include the locking portion 1221 and the disassembly portion 1222. In other words, the handle 12 includes two first effort-saving levers and two second effort-saving levers. The gripping portion 1211, the transfer point and the locking portion 1221 located on the same connecting section 122 constitute a first effort-saving lever, and the gripping portion 1211, the transfer point and the disassembly portion 1222 located on the same connecting section 122 constitute a second effort-saving lever. The water channel plate 132 is provided with two limiting portions 1321 , which are respectively located at the left and right sides of the filter element assembly 11 and correspond to the two connecting sections 122 .

[0061] The handle 12 is rotatably connected to the supporting points on the filter element assembly 11 through the transition points on the connecting sections 122 at both ends. During the assembly process, the locking parts 1221 at both ends of the handle 12 are synchronously in contact with the two limiting parts 1321. During the disassembly process, the disassembly parts 1222 at both ends of the handle 12 are synchronously in contact with the two limiting parts 1321.

[0062] Furthermore, in one embodiment, the limiting portion 1321 includes a limiting protrusion, such as Figure 7 As shown, a clearance groove 123 is provided between the locking portion 1221 and the disassembly portion 1222. Figure 1 and Figure 3 As shown, when the handle 12 rotates forward, the limiting portion 1321 gradually enters the giving way groove 123 from the opening of the giving way groove 123 until the locking portion 1221 presses against the limiting portion 1321 so that the connector 112 is inserted into and pressed into the interface 1324. At this time, the locking portion 1221 and the limiting portion 1321 are arranged in sequence in the direction of the interface 1324. When the handle 12 rotates reversely, as shown in FIG. Figure 4 and Figure 5 As shown, the limiting portion 1321 gradually withdraws from the opening of the making way slot 123 , and the disassembly portion 1222 gradually presses against the limiting portion 1321 until the connector 112 is pulled out of the interface 1324 .

[0063] Specifically, Figure 7As shown, the opening of the relief groove 123 is located at the end faces of both ends of the handle 12. The relief groove 123 penetrates through the inner side and the outer side of the handle 12, so that the locking portion 1221 and the disassembly portion 1222 are arranged at intervals. As Figure 3 shown, when the limiting portion 1321 is located in the relief groove 123, the disassembly portion 1222 and the locking portion 1221 are respectively located on the upper and lower sides of the limiting portion 1321. Here, the upper side of the limiting portion 1321 refers to the side away from the bottom wall of the installation cavity, and the lower side refers to the side close to the bottom wall of the installation cavity.

[0064] Specifically, as Figure 3 shown, the direction of the second component force F2 is generally distributed along the orientation of the opening of the relief groove 123, so that the locking portion 1221 can prevent the limiting portion 1321 from withdrawing from the relief groove 123.

[0065] Furthermore, in one embodiment, as Figure 7 shown, the connecting section 122 is of a plate-like structure. The connecting section 122 further includes a main body section 1223 connecting the locking portion 1221 and the disassembly portion 1222. The main body section 1223 and the locking portion 1221 and the disassembly portion 1222 enclose the relief groove 123. The main body section 1223 is connected to the holding portion 1211. The position on the main body section 1223 where it is connected to the holding portion 1211 is closer to the disassembly portion 1222 than to the locking portion 1221, and the transfer point is located on the disassembly portion 1222. The intermediate holding section 121 is an arc section. The disassembly portion 1222 is generally located on the extension lines of both ends of the intermediate holding section 121, and the cantilever formed by the main body section 1223 and the locking portion 1221 is suspended outside the intermediate holding section 121.

[0066] As Figures 1 to 5 shown, the two connecting sections 122 of plate-like structure are located on both sides of the filter element assembly 11 and are respectively rotatably connected to the filter element assembly 11. Based on the fact that the position on the main body section 1223 where it is connected to the intermediate holding section 121 is closer to the disassembly portion 1222 than to the locking portion 1221, and the transfer point is located on the disassembly portion 1222. Therefore, as Figure 1 and Figure 3 shown, the locking portion 1221 and the intermediate holding section 121 are arranged in a staggered manner, and the cantilever formed by connecting the locking portion 1221 and the main body section 1223 is suspended outside the intermediate holding section 121. During the locking process, when the locking portion 1221 presses against the limiting portion 1321, the stress at the connection between the locking portion 1221 and the main body section 1223 is relatively large and is prone to fracture. Based on this, further, as Figure 7As shown, a reinforcing rib 125 is provided at the connection between the main body 1223 and the locking portion 1221 to improve the strength of the cantilever.

[0067] Further, in one embodiment, if Figure 7 As shown, the thickness of the connection between the main body 1223 and the locking portion 1221 can also be set to be greater than the thickness of other parts of the locking portion 1221, thereby increasing the force bearing capacity of the connection between the locking portion 1221 and the main body 1223 and improving the strength of the cantilever.

[0068] Furthermore, 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. Figure 7 As shown, the connecting section 122 is provided with a rotating shaft 124. Figure 10 and Figure 11 As shown, the filter element assembly 11 is provided with a slot 111. The rotating shaft 124 is inserted into the slot 111, a recess 1111 is provided on the side wall of the slot 111, and the rotating shaft 124 is provided with a stop protrusion 1241, which is located in the recess 1111 and is used to limit the rotation angle of the handle 12 relative to the filter element assembly 11.

[0069] During use, the handle 12 can only rotate within a certain range allowed, and the disassembly process between the connector 112 and the interface 1324 can be realized within this allowable rotation range, further improving the convenience of operation. Figure 10 and Figure 11 As shown, during the disassembly process, when the handle 12 is reversed to the extreme position, the anti-rotation protrusion 1241 contacts the wall of the recess 1111 and cannot continue to rotate in the reverse direction. At this time, the handle 12 is roughly in a state of being distributed axially along the installation cavity, and the limiting protrusion has withdrawn from the yield groove 123, which is convenient for the user to act on the middle grip section 121 to pull out the filter element assembly 11.

[0070] Further, in one embodiment, if Figures 1 to 6 As shown, the filter element assembly 11 is provided with an outer shell cover 14. When the filter element assembly 11 is installed in the installation cavity, the outer shell cover 14 covers the opening of the installation cavity.

[0071] Furthermore, if Figure 12 As shown, the end of the filter element assembly 11 is provided with a snap assembly 15 with elastic reset capability. Figure 7 As shown, the middle gripping section 121 is provided with a bayonet 1212 that matches the snap assembly 15. Figure 3As shown, when the locking portion 1221 is pressed against the limiting portion 1321 so that the connector 112 is inserted into and pressed into the interface 1324 , the snap assembly 15 can be locked in cooperation with the bayonet 1212 .

[0072] After the snap 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 pressed against the limiting portion 1321 , ensuring that the connector 112 is always inserted tightly into the interface 1324 .

[0073] Specifically, in one embodiment, Figures 1 to 6 As shown, the handle 12 is arranged at the head end of the filter element assembly 11 , the outer shell cover 14 is arranged on the end surface of the head end of the filter element assembly 11 , and the outer shell cover 14 covers the snap assembly 15 on the filter element assembly 11 .

[0074] like Figure 12 As shown, in one embodiment, when the connector 112 is tightly inserted into the interface 1324, the middle gripping section 121 of the handle 12 is just rotated to a position that fits the end of the filter element assembly 11. The snap assembly 15 is located on the inner side of the middle gripping section 121, and the bayonet 1212 is located on the inner side of the middle gripping section 121 facing the snap assembly 15.

[0075] Further, in one embodiment, if Figure 12 As shown, the filter element assembly 11 is provided with a button 16, and the pressing direction of the button 16 is along the axial direction of the interface 1324. Figure 13 As shown, the button 16 and the snap assembly 15 abut against each other through an inclined surface, and the pressing movement of the button 16 is converted into the radial movement of the snap assembly 15 along the interface 1324, so that the snap assembly 15 escapes from the bayonet 1212.

[0076] When the connector 112 needs to be pulled out from the interface 1324 , the button 16 is pressed, and the snap assembly 15 moves radially along the interface 1324 to exit the bayonet 1212 , and then the handle 12 is reversed to take out the filter element assembly 11 .

[0077] Specifically, Figure 13As shown, the snap component 15 is provided with a first inclined surface 1511, the first inclined surface 1511 is inclined with respect to the cross-section of the interface 1324, and the normal direction of the first inclined surface 1511 faces the bayonet 1212. The button 16 is located on the side of the first inclined surface 1511 facing the bayonet 1212. When the button 16 is pressed, the button 16 applies a force to the first inclined surface 1511 in a direction opposite to the facing direction of the interface 1324, so that the snap component 15 moves in the direction of withdrawing from the bayonet 1212.

[0078] The outer shell 14 is provided with a first through hole and a second through hole. 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 through hole, so that the user can press the button 16, and the snap component 15 can pass through the second through hole and insert into the bayonet 1212.

[0079] Further, in one embodiment, as Figure 13 shown, the snap component 15 includes a first slider 151 and an elastic reset member 152. As Figure 12 shown, the first slider 151 is slidably arranged 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 reset member 152 is located between the first slider 151 and the filter element assembly 11, and is used to provide a reset force for the first slider 151 to slide in the direction close to the bayonet 1212. Specifically, the elastic reset 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.

[0080] Further, in another embodiment, as Figure 14 shown, a sliding buckle 17 is provided at the end of the filter element assembly 11, and a socket matching the sliding buckle 17 is provided on the middle holding section 121. When the locking portion 1221 presses against the limiting portion 1321 so that the joint 112 is inserted and pressed tightly in the interface 1324, the sliding buckle 17 can slide and insert into the socket.

[0081] When the handle 12 is rotated forward to the joint 112 being inserted tightly in the interface 1324, the socket is opposite to the sliding buckle 17. Manually push the sliding buckle 17 so that the sliding buckle 17 inserts into the socket, so that the handle 12 cannot rotate relative to the filter element assembly 11, and the joint 112 is reliably fitted in the interface 1324.

[0082] Further, in one embodiment, one of the sliding buckle 17 and the holding portion 1211 is provided with a buckle 171, and the other is provided with a fitting that cooperates with the buckle 171. When the sliding buckle 17 is inserted into the socket, the buckle 171 is buckled to the fitting.

[0083] Specifically, as Figure 15 shown, the buckle 171 is provided on the sliding buckle 17. The holding portion 1211 is provided with a fitting. When the sliding buckle 17 is manually pushed to be inserted into the socket, the buckle 171 cooperates with the fitting. Without actively releasing the cooperation state between the buckle 171 and the fitting, the sliding buckle 17 cannot be withdrawn from the socket, and thus the handle 12 cannot rotate relative to the filter element assembly 11.

[0084] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0085] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0086] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0088] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "above", "below", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0089] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0090] The above-described embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A water purifier, characterized in that, It comprises a filter element assembly, a waterway plate and a handle, the filter element assembly is provided with a joint, the waterway plate is provided with an interface matching the joint, the waterway plate is provided with a limiting portion, the handle is rotatably connected with the filter element assembly, the handle is provided with a locking portion and a disassembly portion, when the handle rotates forward relative to the filter element assembly, the locking portion presses against the limiting portion to insert and press the joint into the interface, when the handle rotates reversely relative to the filter element assembly, the disassembly portion presses against the limiting portion to pull the joint out of the interface; A clearance groove is provided between the locking portion and the disassembly portion. When the handle rotates forward, the limiting portion gradually enters the clearance groove from the opening of the clearance groove until the locking portion presses against the limiting portion so that the connector is inserted into and pressed into the interface. When the handle is reversed, the limiting portion gradually withdraws from the opening of the clearance groove, and the disassembly portion gradually presses against the limiting portion until the connector is pulled out of the interface.

2. The water purifier according to claim 1, characterized in that The joint is provided with a sealing ring, and when the joint is inserted into the interface, the sealing ring is pressed tightly between the joint and the side wall of the interface.

3. The water purifier according to claim 1, wherein, The handle is provided with a gripping portion, the position on the handle rotatably connected to the filter element assembly is a transition point, the gripping portion, transition point and locking portion on the handle constitute a first labor-saving lever, and the gripping portion, transition point and disassembly portion on the handle constitute a second labor-saving lever.

4. The water purifier according to claim 3, wherein, The surface of the locking portion that presses against the limiting portion is located on the side of the transition point away from the holding portion, and the surface of the disassembly portion that presses against the limiting portion is located on the side of the transition point away from the holding portion.

5. The water purifier according to claim 3, characterized in that, The handle includes a middle gripping section and connecting sections located at both ends of the middle gripping section, the gripping portion is located on the middle gripping section, the two connecting sections are clamped on both sides of the filter element assembly, the two connecting sections are provided with the transfer points, the two connecting sections include the locking portion and the disassembly portion, and the waterway plate is provided with two limiting portions, the two limiting portions are respectively located on the left and right sides of the filter element assembly and correspond to the two connecting sections respectively.

6. The water purifier according to claim 5, wherein, The connecting section also includes a main body portion connecting the locking portion and the disassembly portion, the locking portion and the disassembly portion are arranged at an interval, the main body portion, the locking portion and the disassembly portion surround the give way groove, the main body portion is connected to the holding portion, the position on the main body portion that is connected to the holding portion is closer to the disassembly portion relative to the locking portion, the transfer point is located on the disassembly portion, and a reinforcing rib is provided at the connection between the main body portion and the locking portion.

7. The water purifier according to any one of claims 1 to 6, characterized in that, The end of the filter element assembly on which the connector is provided is the head end, and the position on the filter element assembly for rotationally connecting with the handle is the support point. The support point is located at the head end of the filter element assembly, and the connector is suspended outside the head end of the filter element assembly. The outlet of the connector is along the axial direction of the filter element assembly toward the tail end of the filter element assembly. The interface is located on the top surface of the waterway plate, and the limiting portion is located on the top of the waterway plate.

8. The water purifier according to claim 7, wherein There are two auxiliary plates provided on the water channel plate. The surface of the water channel plate facing the filter element assembly is the front surface. The auxiliary plates extend to the front surface of the water channel plate. The two auxiliary plates are respectively located on the left and right sides of the water channel plate. The limiting portion includes protrusions located on the side surfaces of the auxiliary plates facing away from the filter element assembly.

9. The water purifier according to claim 7, characterized in that, The surface of the limiting portion that presses against the locking portion is the first mating surface. In the direction close to the water channel plate, the first mating surface gradually extends in the direction close to the top surface of the water channel plate.

10. The water purifier according to any one of claims 1 to 6, characterized in that, The surface of the limiting portion that presses against the disassembly portion is the second mating surface. When the connector is inserted and pressed tightly into the interface, there is a spaced arrangement between the disassembly portion and the second mating surface.

11. The water purifier according to any one of claims 1 to 6, characterized in that, It further includes a support shell. The support shell encloses an installation cavity. The filter element assembly is inserted into the installation cavity. The orientation of the installation cavity is consistent with the orientation of the interface. The water channel plate is connected to the support shell.

Images