Filter element mounting structure and water purification equipment

Abstract

The utility model discloses a filter element mounting structure and water purification equipment, and the filter element mounting structure comprises a filter element, a filter element mounting part and a filter element mounting part, wherein a connecting part is arranged at the bottom of the filter element; the waterway plate is provided with a concave accommodating groove with an upward opening, the connecting part is inserted into the accommodating groove from top to bottom in an assembly state, and the waterway plate can swing to a horizontal state or an inclined state in a reciprocating manner; the locking plate is arranged on the waterway plate and can transversely reciprocate relative to the waterway plate, the locking plate is of an annular structure, the locking plate surrounds the periphery of the connecting part in an assembly state, and the locking plate is provided with a counterweight structure; in the assembling state and when the waterway plate swings to the horizontal state, the locking plate transversely moves to the locking connecting part relative to the waterway plate; and in the assembling state and when the waterway plate swings to the inclined state, the balance weight structure drives the locking plate to transversely move to the unlocking connecting part. The filter element mounting structure disclosed by the utility model has the characteristics of simple structure and convenience in mounting and replacement of the filter element, and the filter element can be stably and reliably mounted in the water purification equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to a filter element installation structure and water purification equipment. Background Art

[0002] Water purification equipment is also called water purifier or water filter. It is a water treatment equipment that deeply filters and purifies raw water. At present, water purification equipment is often used in daily production and life. It is generally connected in series in the water pipeline through a connecting pipe to purify the water quality. During the purification process, the filter element of the water purification equipment has a certain service life. After a period of use, the purification ability of the filter element will deteriorate, and the filter element needs to be replaced frequently. Therefore, the installation structure of the filter element needs to be convenient and reliable.

[0003] Chinese patent CN207062011 U discloses a composite filter element assembly, which uses a safety buckle and a waterway plate to form a closed space, and locks the top of the filter element in the closed space to achieve the locking of the filter element. The locking of the filter element in the composite filter element assembly mainly relies on the top of the filter element being locked in the closed space formed by the safety buckle and the waterway plate, while the filter element body and the main force-bearing parts of the filter element are not locked. When the composite filter element assembly is installed in the housing of the water purification equipment, the stable and reliable installation of the filter element cannot be guaranteed. Utility Model Content

[0004] In order to overcome at least one defect of the above-mentioned prior art, the utility model provides a filter element installation structure, which has the characteristics of simple structure and convenient installation and replacement of filter element, and the filter element can be stably and reliably installed in the water purification equipment.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] A filter element installation structure, comprising:

[0007] A filter element, wherein a connecting portion is provided at the bottom of the filter element;

[0008] The waterway plate is provided with a receiving groove with an upward opening and a downward concave opening. In the assembled state, the connecting part is inserted into the receiving groove from top to bottom, and the waterway plate can swing back and forth to a horizontal state or an inclined state;

[0009] A locking plate, which is arranged on the waterway plate and can move back and forth laterally relative to the waterway plate. The locking plate is an annular structure and surrounds the connection portion in an assembled state. The locking plate is provided with a counterweight structure.

[0010] In the assembled state and when the waterway plate is swung to a horizontal state, the locking plate moves laterally relative to the waterway plate to the locking connection portion;

[0011] In the assembled state and when the waterway plate is swung to an inclined state, the counterweight structure drives the locking plate to move laterally to the unlocking connection portion.

[0012] Furthermore, a rotating shaft is provided at the bottom of the waterway plate, the rotating shaft is transversely arranged in the middle area of ​​the bottom of the waterway plate, and the axial direction of the rotating shaft is perpendicular to the direction of the transverse movement of the locking plate.

[0013] Furthermore, two side plates are spaced apart and arranged in parallel on the waterway plate, the two side plates are arranged along the lateral movement direction of the locking plate, and the two side plates extend upward from the top surface of the waterway plate to form a guide space between the two side plates for the lateral movement of the locking plate, and the locking plate is arranged in the guide space.

[0014] Furthermore, in the inclined state, the lower end of the locking plate is the connecting end, and the counterweight structure is arranged in the middle area of ​​the connecting end.

[0015] Furthermore, one end of the locking plate in the lateral movement direction extends away from the connecting portion to the outside of the waterway plate to form a limiting portion, and the limiting portion is provided with a vertically penetrating limiting groove, which extends along the lateral movement direction of the locking plate;

[0016] The waterway plate is installed on the mounting seat and swings back and forth relative to the mounting seat. The mounting seat is provided with a vertically arranged limit pin, the limit pin is inserted in the limit groove, and the limit groove can move horizontally relative to the limit pin.

[0017] Furthermore, an elastic member is provided between the locking plate and the waterway plate, and the elastic member is arranged along the lateral movement direction of the locking plate. In the unlocked state, the elastic member is in a compressed state.

[0018] Furthermore, the waterway plate is fixed at the bottom of the filter element seat, the locking plate is located between the filter element seat and the waterway plate, and the filter element seat is provided with a guide groove for adapting the connecting part, and the guide groove and the accommodating groove are arranged correspondingly up and down so that the connecting part passes through the locking plate via the guide groove and is plugged into the accommodating groove.

[0019] Furthermore, at least one limiting piece is convexly disposed on the side wall of the connecting portion extending in the lateral moving direction of the locking plate, the inner wall of the locking plate is concavely formed to form an unlocking channel for the limiting piece to pass through, and the groove wall of the guide groove is concavely formed to form a guide channel for the limiting piece to pass through, and the number of the unlocking channels and the number of the guide channels are equal to the number of the limiting pieces;

[0020] In the assembled state, the guide channel and the corresponding limiter are arranged opposite to each other up and down, and the locking plate moves back and forth laterally relative to the waterway plate so that the corresponding unlocking channel and the limiter are arranged opposite to each other up and down or staggered up and down, thereby unlocking or locking the connection part.

[0021] Furthermore, the filter element seat is an upwardly open semi-enclosed structure and is adapted to the lower part of the filter element. The lower side wall of the filter element is convexly provided with a locking protrusion, and the filter element seat is provided with a matching locking groove corresponding to the locking protrusion.

[0022] The utility model also provides a water purification device, comprising: a shell and a filter element installation structure, wherein an installation cavity is arranged in the shell, and the filter element installation structure is installed in the installation cavity.

[0023] The beneficial effects of the filter element installation structure and water purification equipment provided by the utility model are as follows:

[0024] By providing a connection portion at the bottom of the filter element to be plugged into the waterway plate, the waterway plate swings back and forth in the assembled state and the locking plate moves back and forth laterally relative to the waterway plate, the locking plate can lock or unlock the filter element. Since the waterway plate is provided at the bottom of the filter element to allow water to flow between the two, the overall stress point of the filter element is located at the bottom, that is, the bottom of the filter element is subjected to concentrated stress. The utility model installs the locking structure of the filter element at the bottom of the filter element, which can improve the stability of the locking structure, so that the filter element is installed in the water purification equipment with stable and reliable characteristics. In addition, the locking structure of the filter element of the utility model utilizes the swing of the waterway plate to switch different installation states, and the locking plate realizes lateral movement by providing a counterweight structure, without the need for an additional drive block. The structure is simple and easy to install, and the filter element can be easily replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the water purification equipment of the utility model;

[0026] Figure 2 It is an exploded diagram of the water purification device of the utility model;

[0027] Figure 3 This is an exploded view of the filter element installation structure of the utility model;

[0028] Figure 4 This is an assembly diagram of the waterway plate, locking plate and filter element seat of the utility model;

[0029] Figure 5 for Figure 4 Exploded diagram of

[0030] Figure 6 It is an assembly diagram of the waterway plate and the locking plate of the utility model;

[0031] Figure 7 It is a schematic diagram of the unlocked state of the filter element installation structure of the utility model;

[0032] Figure 8 It is a schematic diagram of the locking state of the filter element installation structure of the present utility model.

[0033] The meanings of the reference numerals are as follows:

[0034] 1. Filter element; 11. Connecting part; 12. Limiting member; 13. Clamping protrusion; 14. Filter element body; 2. Waterway plate; 21. Accommodating groove; 22. Rotating shaft; 23. Side plate; 24. First end; 25. Second end; 3. Locking plate; 31. Counterweight structure; 32. Connecting end; 33. Limiting part; 34. Limiting groove; 35. Unlocking channel; 4. Mounting seat; 41. Limiting pin; 5. Elastic member; 6. Filter element seat; 61. Guide groove; 62. Guide channel; 63. Clamping slot; 7. Shell; 71. Mounting cavity; 72. Shell body; 73. Blocking part. DETAILED DESCRIPTION

[0035] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0038] The utility model provides a filter element installation structure, referring to Figure 3 , Figure 5 and Figure 6 The filter element installation structure includes a filter element 1, a waterway plate 2 and a locking plate 3. Among them, a connecting portion 11 is provided at the bottom of the filter element 1, and the waterway plate 2 is provided with a receiving groove 21 with an opening facing upward and a concave downward. In the assembled state, the connecting portion 11 is inserted into the receiving groove 21 from top to bottom, and the waterway plate 2 can swing back and forth to a horizontal state or an inclined state. The locking plate 3 is arranged on the waterway plate 2 and can move back and forth laterally relative to the waterway plate 2. The locking plate 3 is an annular structure and surrounds the connecting portion 11 in the assembled state. The locking plate 3 is provided with a counterweight structure 31. In the assembled state and the waterway plate 2 swings to a horizontal state, the locking plate 3 moves laterally relative to the waterway plate 2 to the locking connecting portion 11. In the assembled state and the waterway plate 2 swings to an inclined state, the counterweight structure 31 drives the locking plate 3 to move laterally to the unlocking connecting portion 11.

[0039] Therefore, the filter element installation structure of the utility model is provided with a connection portion 11 at the bottom of the filter element 1 to be plugged with the waterway plate 2. In the assembled state, the waterway plate 2 swings back and forth and the locking plate 3 moves back and forth laterally relative to the waterway plate 2, so that the locking plate 3 locks or unlocks the filter element 1. Since the waterway plate 2 is provided at the bottom of the filter element 1 to allow water to flow between the two, the overall force point of the filter element 1 is located at the bottom, that is, the bottom of the filter element 1 is concentratedly stressed. The utility model installs the locking structure of the filter element 1 at the bottom of the filter element 1, which can improve the stability of the locking structure, so that the filter element 1 is installed in the water purification equipment with stable and reliable characteristics. In addition, the locking structure of the filter element 1 of the utility model uses the swing of the waterway plate 2 to switch different installation states, and the locking plate 3 realizes lateral movement by providing a counterweight structure 31, without the need to additionally provide a drive block. The structure is simple and easy to install, and the filter element 1 is convenient to replace.

[0040] In the utility model, the filter element 1 includes a cylindrical filter element body 14, and the filter element body 14 is arranged vertically. The connecting portion 11 is a hexahedral structure, which is arranged in the middle area of ​​the bottom of the filter element body 14. Three waterway interfaces are opened at the bottom of the connecting portion 11, which are used for raw water, pure water and concentrated water to flow through respectively. The arrangement of the three waterway interfaces is not specifically limited, and they are arranged according to the waterway connection method of the water purification equipment. The middle area of ​​the waterway plate 2 is concave to form a receiving groove 21 with an opening facing upward. The receiving groove 21 is provided with a raw water inlet, a pure water outlet and a concentrated water outlet to be connected to the three waterway interfaces at the bottom of the connecting portion 11 in the assembled state. In order to improve the stability of the filter element installation structure, the raw water inlet, the pure water outlet and the concentrated water outlet are evenly dispersed in the receiving groove 21.

[0041] When the filter element 1 is not installed, the locking plate 3 is arranged on the waterway plate 2 and the waterway plate 2 swings to an inclined state. Under the force of the weight of the counterweight structure 31, the counterweight structure 31 drives the locking plate 3 to move laterally toward the inclined lower end to an unlocked state. In this state, the filter element 1 is installed at the same inclined angle, the connection part 11 is inserted into the receiving groove 21, and the filter element 1 is used to press the upper end of the waterway plate 2 in the inclined state, so that the waterway plate 2 swings in the reverse direction to a horizontal state, and then the locking plate 3 is driven to move laterally in the reverse direction to the locking connection part 11 to lock the filter element 1. When the filter element 1 needs to be removed, the filter element 1 is used to press the other end of the waterway plate 2 downward with its own weight, so that the entire assembly structure returns to an inclined state. At this time, under the force of the weight of the counterweight structure 31, the counterweight structure 31 drives the locking plate 3 to move laterally toward the inclined lower end to an unlocked state, and the connection part 11 is unlocked, so that the filter element 1 can be removed.

[0042] Specifically, a rotating shaft 22 is provided at the bottom of the waterway plate 2, and the rotating shaft 22 is transversely arranged in the middle area of ​​the bottom of the waterway plate 2, and the axial direction of the rotating shaft 22 is perpendicular to the direction of the transverse movement of the locking plate 3. The upper end of the waterway plate 2 in the inclined state is the first end 24, and the lower end of the waterway plate 2 is the second end 25. The first end 24 or the second end 25 is pressed downward by the weight of the filter element 1 to make the waterway plate 2 reciprocate around the rotating shaft 22, so as to switch between the inclined state and the horizontal state. The setting of the rotating shaft 22 is conducive to improving the sensitivity of the swing of the waterway plate 2, and the rotating shaft 22 is arranged in the middle area of ​​the bottom of the waterway plate 2, which improves the stability of the assembly structure.

[0043] Two side plates 23 are arranged in parallel and at intervals on the waterway plate 2. The two side plates 23 are arranged along the lateral movement direction of the locking plate 3, and the two side plates 23 extend upward from the top surface of the waterway plate 2 to form a guide space for the lateral movement of the locking plate 3 between the two side plates 23. The locking plate 3 is arranged in the guide space. The utility model forms a guide space between the two side plates 23 to limit the movement direction of the locking plate 3, so as to ensure the smooth locking or unlocking of the filter element 1.

[0044] In the tilted state, the lower end of the locking plate 3 is the connection end 32, and the counterweight structure 31 is arranged in the middle area of ​​the connection end 32. The connection end 32 is arranged corresponding to the second end 25, and the counterweight structure 31 is arranged at the connection end 32. In the tilted state, the counterweight structure 31 has a tendency to move toward the second end 25 due to the effect of its own gravity and the obstruction of the locking plate 3, so that the locking plate 3 is driven to move laterally toward the second end 25 relative to the waterway plate 2 through the counterweight structure 31 to reach the unlocked state. In addition, the counterweight structure 31 is arranged in the middle area of ​​the connection end 32, and the counterweight structure 31 can evenly apply force to the symmetrical parts of the locking plate 3 to strictly define the lateral movement direction of the locking plate 3 and improve the accuracy of locking or unlocking.

[0045] In the present invention, the counterweight structure 31 is a cylindrical structure placed horizontally, and the central axis of the cylindrical counterweight structure 31 is perpendicular to the horizontal movement direction. The counterweight structure 31 can also be spherical. As a result, the counterweight structure 31 rolls toward the second end 25 due to its own gravity, which is more conducive to driving the locking plate 3 to move horizontally toward the second end 25. Of course, in actual applications, the counterweight structure 31 can be designed as a counterweight block or any other shape.

[0046] See also Figure 2 , Figure 5 and Figure 6, one end of the locking plate 3 in the lateral movement direction is extended to the outside of the waterway plate 2 away from the connecting portion 11 to form a limiting portion 33, and the limiting portion 33 is provided with a vertically penetrating limiting groove 34, and the limiting groove 34 extends along the lateral movement direction of the locking plate 3. The waterway plate 2 is mounted on the mounting seat 4 and reciprocates relative to the mounting seat 4. The mounting seat 4 is provided with a vertically arranged limiting pin 41, and the limiting pin 41 is inserted in the limiting groove 34, and the limiting groove 34 can move laterally relative to the limiting pin 41. Therefore, the lateral reciprocating movement of the locking plate 3 is limited by the matching limiting structure of the limiting pin 41 and the limiting groove 34, which further improves the accuracy of the lateral movement direction of the locking plate 3, making the locking or unlocking of the filter element 1 more stable and accurate.

[0047] The lateral movement of the locking plate 3 to the unlocked state is achieved by the counterweight structure 31, while the reverse lateral movement of the locking plate 3 to the locked state requires the help of an external force. The external force can be a manual thrust, or it can be achieved by a pusher or the like. In the utility model, an elastic member 5 is provided between the locking plate 3 and the waterway plate 2. The elastic member 5 is arranged along the lateral movement direction of the locking plate 3, and the elastic member 5 is in a compressed state in the unlocked state. When the locking plate 3 moves toward the second end 25 to the unlocked state due to the force of the self-gravity of the counterweight structure 31, the elastic member 5 is in a compressed state. When the waterway plate 2 is swung to a horizontal state by the self-weight of the filter element 1, the counterweight structure 31 does not generate a force on the locking plate 3, and the elastic force of the elastic member 5 to restore the deformation pushes the locking plate 3 and the counterweight structure 31 to move synchronously toward the first end 24 to move laterally to lock the filter element 1.

[0048] In the present invention, the elastic member 5 is a spring.

[0049] It is worth noting that, in the tilted state, the self-weight of the counterweight structure 31 needs to be able to overcome the elastic force of the elastic member 5 to restore its deformation so as to compress the elastic member 5. In the horizontal state, the elastic force of the elastic member 5 to restore its deformation must be sufficient to push the locking plate 3 and the counterweight structure 31 to ensure that the locking plate 3 can move back and forth smoothly in the horizontal direction.

[0050] See also Figure 4 and Figure 5 , the waterway plate 2 is fixed to the bottom of the filter element seat 6, the locking plate 3 is located between the filter element seat 6 and the waterway plate 2, and the filter element seat 6 is provided with a guide groove 61 adapted to the connection part 11, and the guide groove 61 is arranged correspondingly with the receiving groove 21 up and down so that the connection part 11 passes through the locking plate 3 through the guide groove 61 and is plugged into the receiving groove 21. Among them, the center of gravity of the filter element seat 6, the waterway plate 2 and the filter element 1 are in a straight line to improve the stability of the installation of the filter element 1. The guide groove 61 is opened in the middle area of ​​the filter element seat 6 and corresponds to the receiving groove 21 up and down. Therefore, during installation, the connection part 11 passes through the locking plate 3 from top to bottom through the guide groove 61 and is plugged into the receiving groove 21.

[0051] On the one hand, the filter element seat 6 is arranged above the locking plate 3, and the filter element seat 6 cooperates with the waterway plate 2 to limit the locking plate 3 in the vertical direction, so as to prevent the locking plate 3 from being separated from the waterway plate 2 upward. On the other hand, the connection part 11 is connected to the waterway plate 2 through the guide groove 61 of the filter element seat 6, which can improve the accuracy and stability of the connection between the connection part 11 and the receiving groove 21. Therefore, the setting of the filter element seat 6 can improve the stability of the installation of the filter element 1.

[0052] The filter element seat 6 is an upwardly open semi-enclosed structure and is adapted to the lower part of the filter element 1. The lower side wall of the filter element 1 is convexly provided with a clamping protrusion 13, and the filter element seat 6 is provided with a matching clamping groove 63 corresponding to the clamping protrusion 13. Specifically, the semi-enclosed structure of the filter element seat 6 is an upwardly open cylindrical structure to enclose the lower part of the filter element body 14, thereby improving the stability of the connection between the filter element 1 and the waterway plate 2. The clamping protrusion 13 is provided at the lower part of the filter element body 14, and the clamping structure of the clamping protrusion 13 and the clamping groove 63 can prevent the filter element 1 from rotating relative to the filter element seat 6, thereby further improving the stability of the installation of the filter element 1.

[0053] Based on the above structure, see Figure 3 and Figure 5 , the side wall of the connection part 11 extending in the lateral moving direction of the locking plate 3 is convexly provided with at least one stopper 12, the inner wall of the locking plate 3 is concave to form an unlocking channel 35 for the stopper 12 to pass through, the groove wall of the guide groove 61 is concave to form a guide channel 62 for the stopper 12 to pass through, and the number of the unlocking channels 35 and the number of the guide channels 62 are equal to the number of the stopper 12. In the assembled state, the guide channel 62 is arranged opposite to the corresponding stopper 12 in the vertical direction, and the locking plate 3 moves back and forth in the horizontal direction relative to the waterway plate 2 so that the corresponding unlocking channel 35 and the stopper 12 are arranged opposite to each other in the vertical direction or staggered in the vertical direction, thereby unlocking or locking the connection part 11.

[0054] Therefore, see Figure 7 and Figure 8 The assembly principle of the filter element installation structure of the utility model is as follows:

[0055] Before installation, the waterway plate 2 is in an inclined state, and the counterweight structure 31 drives the locking plate 3 to move toward the second end 25 due to its own gravity and compresses the elastic member 5. The unlocking channel 35 of the locking plate 3 is arranged opposite to the corresponding limit member 12 and guide channel 62 in the upper and lower directions.

[0056] During installation, the filter element 1 is installed at the same tilted angle, and the connection portion 11 of the filter element 1 is passed through the guide groove 61 and the locking plate 3 from top to bottom in sequence, and the limiter 12 is passed through the corresponding guide channel 62 and the unlocking channel 35 in sequence so that the connection portion 11 is inserted into the receiving groove 21. The first end 24 of the waterway plate 2 is pressed by the weight of the filter element 1, so that the waterway plate 2 swings to a horizontal state, and the counterweight structure 31 does not exert force on the locking plate 3. The elastic force of the elastic member 5 to restore the deformation pushes the locking plate 3 and the counterweight structure 31 to move horizontally toward the first end 24 synchronously until the unlocking channel 35 and the corresponding limiter 12 and the guide channel 62 are staggered up and down. The inner wall of the convex portion of the locking plate 3 blocks the upper side of the corresponding limiter 12 to prevent the limiter 12 from detaching upward from the guide channel 62, thereby locking the connection portion 11 and completing the locking of the filter element 1.

[0057] During disassembly, the filter element 1 is used to press the second end 25 of the waterway plate 2 downward by its own weight, so that the entire assembly structure returns to the inclined state. At this time, under the action of the own weight of the counterweight structure 31, the counterweight structure 31 drives the locking plate 3 to move toward the second end 25 and compresses the elastic member 5. The unlocking channel 35 of the locking plate 3 and the corresponding limit member 12 and guide channel 62 are arranged opposite to each other up and down. The limit member 12 can be disengaged upward through the corresponding unlocking channel 35 and guide channel 62, thereby unlocking the connecting part 11 and the waterway plate 2, thereby completing the disassembly of the filter element 1.

[0058] In addition to the above filter element installation structure, the utility model also provides a water purification device, see Figure 1 and Figure 2 The water purification device comprises a housing 7 and a filter element mounting structure, wherein a mounting cavity 71 is provided in the housing 7, and the filter element mounting structure is mounted in the mounting cavity 71. The filter element mounting structure is mounted in the water purification device, so that the filter element 1 can be stably and reliably mounted, and the filter element 1 can be easily removed from the water purification device.

[0059] Specifically, the housing 1 includes a housing body 72 and a blocking portion 73. The housing body 72 is provided with an opening, and the blocking portion 73 is installed at the opening, so that the blocking portion 73 and the housing body 72 form a closed structure, and a mounting cavity 71 is formed between the blocking portion 73 and the housing body 72. The mounting seat 4 is mounted on the housing body 72, and the waterway plate 2, the locking plate 3 and the filter element seat 6 are assembled from bottom to top into an integral structure and mounted on the mounting seat 4. The waterway plate 2 can swing relative to the mounting seat 4 to drive the locking plate 3 and the filter element seat 6 to swing synchronously.

[0060] The installation cavity 71 is adapted to the filter element 1, and the housing body 72 and the blocking portion 73 are detachable. When the filter element 1 needs to be installed, the blocking portion 73 is removed, and the connecting portion 11 of the filter element 1 is passed through the filter element seat 6 and the locking plate 3 in sequence to be plugged into the waterway plate 2. After the filter element 1 is locked, the blocking portion 73 is installed to complete the assembly of the water purification device 1.

[0061] When the filter element 1 needs to be replaced, the sealing portion 73 is removed, the filter element 1 is unlocked to pull out the filter element 1, and then a new filter element 1 is installed, and the sealing portion 73 is installed on the housing body 72, thereby completing the replacement of the filter element 1.

[0062] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A filter element installation structure, characterized in that: include: A filter element, wherein a connecting portion is provided at the bottom of the filter element; A waterway plate, wherein the waterway plate is provided with a receiving groove which is open upward and concave downward, and the connecting portion is inserted into the receiving groove from top to bottom in the assembled state, and the waterway plate can swing back and forth to a horizontal state or an inclined state; A locking plate, the locking plate is arranged on the waterway plate and can reciprocate laterally relative to the waterway plate, the locking plate is annular and surrounds the connecting portion in an assembled state, and the locking plate is provided with a counterweight structure; In the assembled state and when the waterway plate is swung to a horizontal state, the locking plate moves laterally relative to the waterway plate to lock the connecting portion; In the assembled state and when the waterway plate is swung to an inclined state, the counterweight structure drives the locking plate to move laterally to unlock the connection portion.

2. The filter element installation structure according to claim 1, characterized in that: A rotating shaft is provided at the bottom of the waterway plate. The rotating shaft is transversely arranged in the middle area of ​​the bottom of the waterway plate, and the axial direction of the rotating shaft is perpendicular to the transverse movement direction of the locking plate.

3. The filter element installation structure according to claim 1, characterized in that: Two side plates are spaced apart and arranged in parallel on the waterway plate, and the two side plates are arranged along the lateral movement direction of the locking plate, and the two side plates extend upward from the top surface of the waterway plate to form a guide space between the two side plates for the lateral movement of the locking plate, and the locking plate is arranged in the guide space.

4. The filter element installation structure according to claim 1, characterized in that: In the inclined state, the lower end of the locking plate is the connecting end, and the counterweight structure is arranged in the middle area of ​​the connecting end.

5. The filter element installation structure according to claim 1, characterized in that: One end of the locking plate in the lateral moving direction extends away from the connecting portion to the outside of the waterway plate to form a limiting portion, and the limiting portion is provided with a vertically penetrating limiting groove, and the limiting groove extends along the lateral moving direction of the locking plate; The waterway plate is mounted on a mounting seat and reciprocates relative to the mounting seat. The mounting seat is provided with a vertically arranged limit pin, the limit pin is inserted in the limit slot, and the limit slot can move laterally relative to the limit pin.

6. The filter element installation structure according to claim 1, characterized in that: An elastic member is provided between the locking plate and the waterway plate. The elastic member is arranged along the lateral movement direction of the locking plate. In the unlocked state, the elastic member is in a compressed state.

7. The filter element installation structure according to claim 1, characterized in that: The waterway plate is fixed to the bottom of the filter element seat, the locking plate is located between the filter element seat and the waterway plate, the filter element seat is provided with a guide groove adapted to the connecting part, the guide groove and the receiving groove are arranged correspondingly up and down so that the connecting part passes through the locking plate via the guide groove and is plugged into the receiving groove.

8. The filter element installation structure according to claim 7, characterized in that: The side wall of the connecting portion extending in the lateral moving direction of the locking plate is convexly provided with at least one limiting member, the inner wall of the locking plate is concave to form an unlocking channel for the limiting member to pass through, the groove wall of the guide groove is concave to form a guide channel for the limiting member to pass through, and the number of the unlocking channels and the number of the guide channels are equal to the number of the limiting members; In the assembled state, the guide channel and the corresponding limit member are arranged opposite to each other up and down, and the locking plate moves back and forth laterally relative to the waterway plate so that the corresponding unlocking channel and the limit member are arranged opposite to each other up and down or staggered up and down, thereby unlocking or locking the connecting part.

9. The filter element installation structure according to claim 7, characterized in that: The filter element seat is a semi-enclosed structure that opens upward and is adapted to the lower part of the filter element. A clamping protrusion is protruded outwardly from the lower side wall of the filter element, and a matching clamping groove is provided on the filter element seat corresponding to the clamping protrusion.

10. A water purification device, characterized in that: include: A housing and a filter element mounting structure as described in any one of claims 1 to 9, wherein a mounting cavity is provided in the housing, and the filter element mounting structure is mounted in the mounting cavity.

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