Water purifier

Abstract

The present invention discloses a water purifier, which includes a housing, a water circuit board and a filter element. The filter element is arranged in the housing and is sealingly connected to the water circuit board. An inner partition is arranged in the housing, and the inner partition divides the interior of the housing into a front cavity and a rear cavity. The filter element is arranged in the front cavity, and the water circuit board is arranged in the rear cavity. The water circuit board has a filter element connection port, and a connection hole is formed in the inner partition. The water inlet and outlet of the filter element pass through the connection hole and are sealingly connected to the filter element connection port. In the water purifier of the present invention, by arranging an inner partition in the housing and making the front cavity face the outside, the water circuit board arranged in the rear cavity can be shielded, and accordingly, various structures such as interfaces and valves located on the water circuit board are shielded and not easily get dusty. From the perspective of the normal installation of the water purifier, the user can only see the filter element located in the front cavity, ensuring the cleanliness and aesthetics inside the water purifier.

Description

Technical Field

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

[0002] A water purifier is composed of a housing, a filter element, and a water circuit system. The filter element, control valve components, and other auxiliary components are connected to a water circuit board to form a passage, constituting the water circuit system. Currently, integrated water circuits are mostly used in water purifiers to replace connections through connecting pipes or quick connectors, thereby reducing the risk of water leakage and the installation space. The integrated water circuit board is provided with filter element connection ports, various valve connection ports, etc. Various valve bodies, such as one-way valves, solenoid valves, etc., are connected to the valve connection ports. In some water purifiers, the housing is not enclosed, resulting in various connection ports and valve bodies being exposed to the outside, which is likely to accumulate dust and affects the aesthetics.

[0003] To facilitate assembly and connection, direct-insert type filter elements are currently widely used, that is, the filter element is directly inserted into the water circuit board. The water circuit board is placed horizontally, and the control valve components and other auxiliary components are directly inserted outside the water circuit board, occupying a certain amount of horizontal space and increasing the overall volume of the machine.

[0004] The water nozzle of the direct-insert type filter element is wrapped with an O-ring. To ensure the sealing performance, a large force is required when inserting it into the integrated water circuit board, and also a large force is required when pulling it out from the integrated water circuit board. Moreover, there is no good force application structure on the filter bottle body, and currently, manual force is mainly used to push and pull the filter element. At the same time, the filter element is fixed by screws and other methods, increasing the operation complexity and difficulty.

[0005] After the direct-insert type filter element is assembled into the housing of the water purifier, it can be carried together with the whole machine. However, before the filter element is assembled, due to the large diameter of the filter element to ensure the filtering effect, for the hands of normal adults, holding one filter element requires one hand or even two hands. Although there are transportation tools for long-distance transportation, for short-distance transportation, it generally requires manual handling, which causes great inconvenience and low efficiency in the handling and carrying of the filter element.

[0006] The internal water circuit system of the water purifier is relatively complex, and the possibility of water leakage still cannot be completely eliminated, there is a hidden danger of water leakage. Therefore, the machine is often equipped with a water leakage detection module so that when the water purifier leaks, effective reminders and protection can be obtained to avoid greater losses. However, currently, the water leakage detection module is often placed outside the machine and there is no diversion measure, which is likely to cause missed detection or failure to detect water leakage in a timely manner. If the water leakage module fails to detect the water leakage of the water purifier in a timely manner, it will cause continuous water leakage and cause losses to users. Summary of the Invention

[0007] In order to solve the technical problem that various connection ports and valve bodies of existing water purifiers are exposed to the outside, resulting in easy dust accumulation, the present invention proposes a water purifier that can solve the above problems.

[0008] In order to solve the above technical problems, the present invention is implemented by the following technical solutions:

[0009] A water purifier includes a housing, a water circuit board, and a filter element. The filter element is disposed in the housing and is hermetically connected to the water circuit board. An inner partition is provided in the housing, and the inner partition divides the interior of the housing into a front cavity and a rear cavity. The filter element is disposed in the front cavity, and the water circuit board is disposed in the rear cavity. The water circuit board has a filter element connection port, and a connection hole is formed in the inner partition. The water inlet and outlet of the filter element pass through the connection hole and are hermetically connected to the filter element connection port.

[0010] Further, a valve connection port is formed on the water circuit board, and the valve connection port and the filter element connection port are located on the same side of the water circuit board.

[0011] Further, there are multiple filter elements. Concave arc surface structures corresponding to the filter elements one by one are formed on one side of the inner partition facing the front cavity. The arc radius of each concave arc surface structure matches the radius of the corresponding filter element. The filter elements are closely attached and disposed in the concave arc surface structures, and the water inlet and outlet of the filter elements pass through the connection holes and are hermetically connected to the filter element connection ports.

[0012] Further, the backs of two adjacent concave arc surface structures form a V-shaped gap, and the setting direction of the valve connection port faces the V-shaped gap.

[0013] Further, the housing includes an upper top plate, a lower bottom plate, and two end side plates. A recessed portion is formed on the upper surface of the lower bottom plate, and a leakage detection module is disposed in the recessed portion.

[0014] Further, a through water hole is formed at the lower end of the inner partition, and the water hole is located at the projection position where the recessed portion projects onto the inner partition.

[0015] Further, the filter element includes a filter bottle and an inner core disposed in the filter bottle. One end of the filter bottle is hinged with a handle. The filter bottle includes a filter bottle head and a bottle body connected to the filter bottle head. An inlet and an outlet are formed on the filter bottle head. The handle is a ring-shaped structure with one end open, and the handle is hinged to the filter bottle head through two hinge structures, and the two hinge structures are respectively located on both sides of the inlet and the outlet.

[0016] Further, the hinge structure includes a hinge shaft formed on the inner side of the handle and a groove formed on the side wall of the bottle body. The hinge shaft is inserted into the groove. Both ends of the handle extend along the length direction of the handle from the hinge shaft to form connecting arms. A first claw is formed at the free end of the connecting arm. The opening direction of the first claw is located in the tangential direction of the arc formed by the connecting arm rotating around the hinge shaft. A convex structure is formed on at least one side of the inner partition board where the connecting hole is located. A second claw is formed on the convex structure. The opening direction of the second claw is opposite to that of the first claw. When the handle rotates around the shaft, the first claw and the second claw are engaged or disengaged.

[0017] Further, a water inlet channel communicating with the water inlet and a water outlet channel communicating with the water outlet are formed in the filter bottle head. The water outlet port of the inner core is connected to the water outlet channel. An assembly port is opened at the bottom of the bottle body, and a lower end cover is hermetically fixed at the assembly port.

[0018] Further, the filter bottle head and the bottle body are of an integrally formed structure.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are as follows: In the water purifier of the present invention, by arranging an inner partition board in the outer shell with the front cavity facing the outside, the water circuit board arranged in the rear cavity can be blocked, and accordingly, various interfaces, valves and other structures located on the water circuit board are all blocked and not easily get dusty. From the normal installation angle of the water purifier, the user can only see the filter element located in the front cavity, ensuring the cleanliness and aesthetics inside the water purifier.

[0020] After reading the detailed description of the embodiments of the present invention in conjunction with the drawings, other features and advantages of the present invention will become clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. 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.

[0022] Figure 1 is a schematic diagram of the integral split structure of the water purifier proposed by the present invention;

[0023] Figure 2 is Figure 1 a partial structure schematic diagram in

[0024] Figure 3 is Figure 1 a top view of the inner partition board in

[0025] Figure 4 is Figure 1 The top view of the inner partition board and the water channel board;

[0026] Figure 5 is Figure 1 The structural schematic diagram of the water channel board in the middle;

[0027] Figure 6 is Figure 1 The rear view of the inner partition board in the middle;

[0028] Figure 7 is Figure 1 The structural schematic diagram of the filter element in the middle;

[0029] Figure 8 is Figure 7 The enlarged view of part A;

[0030] Figure 9 is Figure 7 The partial structural schematic diagram of the filter element in the middle;

[0031] Figure 10 is Figure 7 The structural schematic diagram of the handle in the middle;

[0032] Figure 11 is Figure 10 The partial structural schematic diagram of the handle in the middle;

[0033] Figure 12 is Figure 7 The enlarged view of the filter element assembly structure in the middle;

[0034] Figure 13 is Figure 7 The front main view of the filter element in the middle;

[0035] Figure 14 is Figure 13 The sectional view in the direction of B;

[0036] Figure 15 is Figure 14 The enlarged view of part C in it;

[0037] Figure 16 is Figure 5 The structural schematic diagram of the ultraviolet sterilization device in the middle;

[0038] Figure 17 is Figure 16 The sectional view. Specific implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Embodiment 1. In this embodiment, a water purifier is proposed. As Figure 1 , Figure 2 , Figure 4 shown, it includes a housing 1, a water circuit board 2, and a filter element 3. The filter element 3 is arranged in the housing 1 and connected to the water circuit board 2. An inner partition 4 is arranged in the housing 1. The housing 1 includes an upper top plate 11, a lower bottom plate 12, and two end side plates 13. The filter element 3 is arranged between the upper top plate 11 and the lower bottom plate 12. The upper end of the inner partition 4 is fixed to the upper top plate 11, and the lower end of the inner partition 4 is fixed to the lower bottom plate 12. The inner partition 4 divides the interior of the housing 1 into a front chamber 10a and a rear chamber 10b. In this embodiment, it is preferably that the filter element 3 is arranged in the front chamber 10a, and the water circuit board 2 is arranged in the rear chamber. The front chamber 10a faces the outside. The water circuit board 2 has a filter element connection port 21 and a valve connection port 22. Among them, at least the filter element connection port 21 is located on the side of the water circuit board 2 facing the filter element 3. A connection hole 41 is opened on the inner partition 4. The water inlet and outlet of the filter element 3 pass through the connection hole 41 and are hermetically connected to the filter element connection port 21. By arranging the inner partition 4 in this embodiment, the water circuit board 2 arranged in the rear chamber 10b can be blocked, and correspondingly, various interfaces, valves and other structures located on the water circuit board 2 are blocked. From the normal installation angle of the water purifier, the user can only see the filter element located in the front chamber, improving the neatness and aesthetics inside the water purifier.

[0041] To improve the aesthetics of the water purifier and prevent dust from falling in over time, it is preferably that a front cover plate 14 is further arranged on the front side of the housing 1, and a rear cover plate 15 is arranged on the rear side of the housing 1. That is, the front cover plate 14 and the housing 1 body together enclose a closed front chamber 10a, and the rear cover plate 15 and the housing 1 body together enclose a closed rear chamber 10b. It is preferably that the front cover plate 14 and the rear cover plate 15 are detachably fixed to the housing 1, which is convenient for maintenance and assembly.

[0042] The main body of the filter element 3 is designed as a cylindrical structure. In a water purifier, generally, multiple filter elements such as a pre-activated carbon filter, a post-activated carbon filter, and a reverse osmosis filter element need to be arranged to filter water in multiple layers to improve water quality and taste. To save the internal space of the housing, as Figure 3As shown in the figure, it is a top view of the inner partition plate 4. On one side of the inner partition plate 4 facing the front cavity 10a, a concave arc surface structure 42 corresponding to the filter element 3 one by one is formed. The arc radius of each concave arc surface structure 42 matches the radius of the corresponding filter element 3. The filter element 3 is tightly fitted and arranged in the concave arc surface structure 42. The water inlet and outlet of the filter element 3 pass through the connection hole 41 and are hermetically connected to the filter element connection port 21.

[0043] Since the front side of the inner partition plate 4 has a concave arc surface structure 42 that is concave downward, a convex arc surface structure corresponding to the concave arc surface structure 42 will be formed on the back of the inner partition plate 4. A V-shaped gap 43 is formed on the back of two adjacent concave arc surface structures 42. As Figure 3 、 Figure 4 shown, in order to further reduce the overall volume of the water purifier, it is preferred that the valve connection port 22 faces the V-shaped gap 43. When the valve connection port 22 is connected to various valves, it is located within the corresponding valve position V-shaped gap, avoiding the problem that the current valve connection port faces the rear cavity, resulting in a relatively large front-to-back thickness of the water purifier. This solution maximally utilizes the idle space inside the housing, making the overall structure of the machine more compact and further reducing the volume of the water purifier.

[0044] In order to facilitate the maintenance of the valve connection port 22 and the various valves connected to it for maintenance and assembly, as Figure 2 shown, it is preferred to open a maintenance port 44 on the inner partition plate 4. A maintenance door 45 is provided corresponding to the maintenance port 44. The width and length of the maintenance port 44 should be able to cover all the valve connection ports on the water circuit board 2. After the maintenance door 45 is opened, all the valve connection ports 22 on the water circuit board 2 can be exposed within the line of sight. In the assembled state, the maintenance door 45 is closed to block the valve connection ports 22 into the rear cavity, ensuring the internal aesthetics and cleanliness.

[0045] In order to ensure the consistency of the inner partition plate 4, the outer shape of the maintenance door 45 is consistent with the corresponding arc surface structure of the inner partition plate 4. At the same time, a V-shaped gap is formed on the back of the maintenance door 45 and the back of two adjacent concave arc surface structures for accommodating the valve connection port and various valves. The maintenance door 45 can be hingedly connected to the maintenance port 44, or can be detachably connected by means of a claw buckle, or fixed and connected by means of screws.

[0046] As Figure 1 、 Figure 6 shown, on one side of the inner partition plate 4 facing the rear cavity 10b, a water pump fixing seat 46, a control board fixing seat 47, a power supply fixing seat 48, etc. are also provided, which are respectively used for fixedly arranging the water pump 7, the control board 8, and the power supply 9. Since the area of the water circuit board 2 is smaller than the area of the inner partition plate 4, therefore, the water pump fixing seat 46, the control board fixing seat 47, the power supply fixing seat 48, etc. are located above or below the water circuit board 2, without affecting the assembly of the water circuit board.

[0047] The waterway board 2 can be fixed on the inner partition board 4. The filter element 3 is fixedly connected to the waterway board 2, and the bottom of the filter element 3 can be supported by the lower bottom plate. A sealing structure such as an O-ring can also be provided at the connection port between the filter element 3 and the waterway board 2 to reduce the risk of water leakage.

[0048] As Figure 6 shown, a recess 121 is formed on the upper surface of the lower bottom plate 12, and a water leakage detection module 5 is arranged in the recess 121. When the water purifier leaks, under the action of the gravity of the water, it flows downward to the lower bottom plate 12 of the housing 1. In this solution, a recess is formed on the upper surface of the lower bottom plate, and the water around the recess converges into the recess, and the water leakage detection module is arranged in the recess. Therefore, once the water purifier leaks, the water leakage detection module can detect it in time, and then effective reminders and protections can be carried out, effectively preventing the situations of missed detection and untimely detection.

[0049] A card seat 122 for fixing the water leakage detection module is arranged in the recess 121. The water leakage detection module 5 is an electronic component with a water leakage detection function, which has a housing and a protection structure for protecting the internal circuit, etc. The circuit of this module is connected to the control module of the water purifier through a wire. During assembly, fixing its housing on the card seat 122 can achieve installation and fixation.

[0050] In order to enable the leaked water flowing onto the lower bottom plate 12 to smoothly flow into the recess 121 so that it can be detected by the water leakage detection module 5 in time and quickly, the upper surface of the lower bottom plate 12 gradually rises from the recess 121 at a certain slope to the edge of the lower bottom plate, forming a situation where the periphery of the recess gradually rises and the position of the recess is the lowest. Therefore, even if the leaked water does not directly leak into the recess, the water leaking to other positions on the lower bottom plate will also be guided into the recess 121 under the action of gravity, preventing the problem that the leaked water accumulates at other positions and cannot be detected in time.

[0051] In order to prevent the large amount of leaked water from causing the water inside the housing 1 to fill the recess and overflow to the outside of the water purifier before the user can handle it, damaging the cabinet and causing unnecessary troubles and losses, a water retaining edge 123 extending upward is formed at the front end and / or the rear end of the lower bottom plate 12. The water retaining edge 123 extends to both ends and is hermetically connected to the two side plates 13 of the housing 1, and can form a enclosure together with the two side plates 13 to block the water overflowing from the recess inside the housing 1. Furthermore, it can give the user time to react and handle when there is a leak, and it will not directly leak to the outside of the water purifier after the recess is filled.

[0052] In order to further improve the efficiency of guiding the leaked water into the recess 121, a diversion edge 125 is further formed on the upper surface of the lower bottom plate 12. One end of the diversion edge 125 is connected to the water retaining edge 123, and the other end extends to the recess 121, so that the leaked water can be quickly and directionally guided into the recess 121, preventing the leaked water from staying and meandering at the edge of the recess and delaying the time of being detected by the water leakage detection module.

[0053] The recess 121 can be located in the front cavity 10a or can also be located in the rear cavity 10b. No matter which cavity it is located in, in order to facilitate the smooth inflow of the leaked water in the other cavity into the cavity where the water leakage detection module is located for being detected by the water leakage detection module, a through water hole 49 is opened at the lower end of the inner partition plate 4, and the leaked water can flow into the recess through the water hole 49. The water circuit board 2 can be fixed on the inner partition plate 4, the filter element 3 is fixedly connected to the water circuit board 2, and the bottom of the filter element 3 can be supported by the lower bottom plate. A sealing structure such as an O-ring can also be provided at the connection port between the filter element 3 and the water circuit board 2 to reduce the risk of water leakage.

[0054] Since various structures and valve structures are all located on the water circuit board 2, the probability of water leakage of the water circuit board 2 is higher than that of the filter element 3. In order to shorten the path of the leaked water flowing into the recess, and thus be detected by the water leakage detection module once water leakage occurs, preferably the recess 121 is located in the rear cavity 10b, that is, the recess 121 and the water circuit board 2 are on the same side. The water leakage caused by the water circuit board 2 can flow into the recess 121 along the shortest path and then be quickly detected. At the same time, by arranging the recess 121 in the rear cavity, the neatness and aesthetics inside the water purifier can be further improved.

[0055] When the recess 121 and the water circuit board 2 are both arranged in the rear cavity, only the probability of water leakage of the water circuit board 2 is relatively higher than that of other components, and the situation of water leakage in the water circuit or device located in the front cavity 10a cannot be completely excluded. Therefore, in order to facilitate the shortening of the water leakage flow path when water leakage occurs in the front cavity 10a, preferably the water hole 49 is located at the projection position where the recess 121 projects onto the inner partition plate 4. Therefore, the leaked water in the front cavity 10a can enter the recess 121 through the water hole along the shortest path, further improving the detection reaction speed of the water leakage detection module.

[0056] The direct insertion type filter element 3 has the advantage of convenient assembly. However, before the filter element 3 is assembled on the water purifier, it needs to be manually carried by hand, which causes great inconvenience to the handling and carrying of the filter element 3 and has the disadvantage of low efficiency. In order to solve the above problems, as Figures 7 - 12As shown in the figure, the filter element 3 of this embodiment includes a filter bottle 31 and an inner core (not shown in the figure due to the angle) disposed inside the filter bottle 31. One end of the filter bottle 31 is hinged with a handle 32. The handle 32 is rotatably connected to the filter bottle 31 through a rotating shaft. Among them, the rotating shaft can be fixed on the handle or on the filter bottle, as long as it satisfies that the handle 32 can move around the rotating shaft. In the filter element 3 of this embodiment, a handle is hinged at the end of the filter bottle, and the handle can rotate around the hinge shaft. When the handle is rotated above the filter element 3, it can be transferred by hand-held handle, which is convenient for handling and carrying. When transfer is not required, the handle 32 can be rotated to one side of the filter element 3, which does not affect the assembly and use of the filter element 3.

[0057] In order to improve the sealing performance between the filter element 3 and the water circuit board 2, generally, an O-ring is set at the connection port to ensure the tight connection between the two, and at the same time, the friction between the two is increased to prevent water leakage and prevent the filter element 3 from falling off the water circuit board 2. However, this will bring another problem. When replacing the filter element 3 and pulling the filter element 3 off the water circuit board 2, a large pulling force needs to be applied to pull off the filter element 3. For the traditional filter element 3, its exterior only includes structures such as a filter bottle and a filter bottle head arranged along the length direction, and there is no any assisting structure or auxiliary structure that can assist the user to pull the filter element 3 off the water circuit board 2, and the operation is very inconvenient. In this embodiment, the filter bottle 31 includes a filter bottle head 311 and a bottle body 312 connected to the filter bottle head 311. An inlet 313 and an outlet 320 for connecting to the water circuit board 2 are formed on the filter bottle head 311. The handle 32 is a ring-shaped structure with an open end. The handle 32 is hinged to the filter bottle head 311 through two hinge structures 314. The two hinge structures 314 are respectively located on both sides of the inlet 313 and the outlet 320. That is to say, the direction of the hinge axis of the hinge structure 314 is not in the same direction as the length direction of the inlet and the outlet. Therefore, the handle can be rotated to the side opposite to the inlet and the outlet. When the filter element 3 needs to be pulled off the water circuit board 2, by holding the bottle body with one hand and pulling the handle backward with the other hand, a pulling force opposite to the connection direction of the inlet, the outlet and the water circuit board 2 is applied. Therefore, the handle can play a role in assisting in pulling off the filter element 3, and solves the problem that it is currently difficult to pull the filter element 3 off the water circuit board 2.

[0058] Preferably, the hinge structure 314, the inlet 313 and the outlet 320 are on the same horizontal plane. At this time, it can be ensured that when pulling the handle backward, the direction of the applied force is parallel to or on the same straight line as the length direction of the inlet and the outlet. Therefore, the effective power utilization rate can be improved, and the minimum force can be applied on the premise of being able to pull off the filter element 3.

[0059] When removing the filter element 3, in order to make the two sides of the handle 32 evenly stressed, it is preferable to symmetrically arrange the two hinge structures 314 on both sides of the water inlet and the water outlet, so as to minimize the damage to the single-side hinge structure as much as possible.

[0060] Generally, when the water purifier leaves the factory, the filter element 3 is assembled with the water circuit board 2. During the handling process, it is easy for the filter element 3 to fall off from the water circuit board 2, or during the operation of the filter element 3, due to the impact and shaking of the water flow, the filter element 3 may fall off from the water circuit board 2. The detachment of the filter element 3 will cause the filter element 3 to be contaminated and bring negative impacts on product quality. In order to fix the filter element 3 in the water purifier and prevent the filter element 3 from falling off in the water purifier, as Figures 9 - 12 shown, the hinge structure 314 includes a hinge shaft 314a formed on the inner side of the handle and a groove 314b opened on the side wall of the bottle body 312. The hinge shaft 314a is inserted into the groove 314b. The two ends of the handle 32 respectively extend along the length direction of the handle 32 from the hinge shaft 314a to form connecting arms 33. A first claw 35 is formed at the free end of the connecting arm 33. The opening direction of the first claw 35 is located in the tangential direction of the arc formed by the rotation of the connecting arm 33 around the hinge shaft. The inner partition 4 should have a clamping structure 40 that cooperates with the first claw 35. After the filter element 3 is inserted into the water circuit board 2, by rotating the handle 32 around the hinge shaft 314a, the first claw 35 is screwed into the clamping structure 40 on the inner partition 4 that cooperates with it, realizing the fixed connection between the filter element 3 and the inner partition 4, which can prevent the problem that the water inlet and outlet of the filter element 3 fall off from the water circuit board 2 during the handling process or the use process. The solution of this structure is simple to implement. By setting a handle on the filter element 3, multiple functions can be achieved, and multiple technical problems existing in the current filter element 3 can be solved simultaneously.

[0061] The opening of the first claw 35 can face downwards or upwards, as long as the clamping structure 40 satisfies the cooperation with it. That is, when the opening of the first claw 35 faces downwards, the clamping structure 40 faces upwards, and when the opening of the first claw 35 faces upwards, the clamping structure 40 faces downwards. By rotating the handle 32, the first claw 35 is engaged with the clamping structure 40. In this embodiment, the example is given with the opening of the first claw 35 facing downwards.

[0062] Among them, the positions of the hinge shaft and the groove of the hinge structure are not limited to the above examples. The hinge shaft can also be formed on the side wall of the bottle body, and the groove can be opened on the inner side surface of the handle, which can also play the role of hinged connection between the handle and the bottle body. Or grooves can be opened on both the handle and the bottle body, and the two ends of the hinge shaft are respectively inserted into the grooves of the handle and the bottle body to realize the hinged connection between the two. Any solution that can realize the hinged connection between the handle and the bottle body belongs to the protection scope of the present invention.

[0063] In order to improve the support and fixation strength of the first claw 35, as Figure 10As shown, preferably, reinforcing ribs 36 are formed on at least one side of the first claw 35 along its length direction. In this embodiment, reinforcing ribs 36 are formed on both sides of the first claw 35, further enhancing the strength of the first claw 35. The number of reinforcing ribs 36 is not limited to the example in this embodiment and can be arranged according to the actual space. The position of the reinforcing ribs is also not limited to the example in this embodiment and can also be set on the non-engaging surface of the first claw or other positions, which can increase the strength of the first claw. The convex rib-like structures formed on the surface of the first claw all fall within the protection scope of the present invention.

[0064] As Figure 10 , Figure 11 shown, in order to raise the center of gravity of the handle and facilitate the operation of rotating the handle to engage the first claw 35 with the inner partition 4 or disengage the first claw from the waterway plate 2, the angle between the handle and the reverse extension line of the connecting arm is an acute angle. By making the center of gravity of the handle 32 relatively higher than that of the connecting arm, it is more in line with the principles of human mechanics when rotating the handle, and the handle can be easily rotated. Moreover, when the first claw 35 is engaged with the waterway plate 2, the handle still remains in an upwardly inclined state, which can save the space of the filter bottle below the handle, that is, reduce the shielding of the filter bottle by the handle. To prevent sharp corners from scratching users at the connection between the handle and the connecting arm, preferably, the handle 35 and the connecting arm 33 are connected by an arc transition.

[0065] When the first claw 35 is engaged with the inner partition 4, since the handle 35 remains in an upwardly inclined state, in order to prevent the handle from moving downward under its own gravity or being accidentally touched by an external force, resulting in the disengagement of the engaging structure between the first claw and the inner partition 4, as Figure 9 shown, a limiting rib 315 is formed on one side of the bottle body 312 where the groove 314a is located. The height of the limiting rib 315 is greater than the gap between the handle 32 and the filter bottle 31. When the handle rotates upward around the axis and the first claw is engaged with the inner partition 4, the limiting rib 315 is located below the handle 32, playing a role in supporting the handle 32. The limiting rib 315 is used to support the handle 32 to maintain a certain angle.

[0066] Similarly, as Figure 9 shown, in order to prevent the handle 32 from rotating excessively, a positioning rib 316 is formed on the other side of the bottle body 312 where the groove is located. The height of the positioning rib 316 is greater than the gap between the handle 32 and the filter bottle 31.

[0067] Since the handle 32 needs to be hinged to the filter bottle head 311, preferably, the filter bottle head 311 and the bottle body 312 are integrally formed structures, which will save the assembly process of the filter bottle head 311 and the bottle body 312. An assembly opening is provided at the bottom of the bottle body 312, and the inner core is inserted into the filter bottle 31 through the assembly opening and fixed, as Figure 7As shown, a lower end cap 317 is hermetically fixed at the assembly port, which is used to seal the inner core in the cavity of the filter bottle and can also support the inner core.

[0068] The lower end cap 317 and the bottle body 312 are preferably fixed by spin welding, which has high fixing efficiency and good sealing performance. At the same time, since the lower end cap 317 is located below the bottle body 312 and at one end far from the water outlet of the inner core, the influence of spin welding on the sealing performance between the inner core and the filter bottle can be avoided.

[0069] As Figures 13 - 15 shown, for the direct-insert type filter element of this embodiment, a water inlet 313 and a water outlet 320 are formed on the filter bottle head 311. An inlet channel (not shown in the figure due to angle reasons) communicating with the water inlet 313 and an outlet channel communicating with the water outlet 320 are formed in the filter bottle head 311. The water outlet port of the inner core 34 is connected to the outlet channel. An assembly port is opened at the bottom of the bottle body 312, and a lower end cap 317 is hermetically fixed at the assembly port. When assembling the direct-insert type filter element, first insert the inner core into the bottle body from the assembly port, and the water outlet port at the upper end of the inner core is hermetically fixed and connected to the outlet channel of the filter bottle head. Finally, seal and fix the lower end cap to the bottle body. The fixing method of the end cap to the bottle body is preferably the traditional spin welding fixing method, but it is not limited to spin welding. Other forms of sealing and fixing methods can also be used, such as sealing and fixing through plug-and-play with a sealing ring, etc., to achieve the sealing of the assembly port. By opening the port for placing the filter element 3 at the bottom end of the filter bottle, there is no relative movement between the inner core and the filter bottle during spin welding. Therefore, spin welding will not cause problems affecting the sealing of the inner core.

[0070] The filter bottle head in this embodiment has a simple structure. As Figure 7 、 Figure 9 shown, a water inlet 313, a water outlet 320, an inlet channel and an outlet channel are formed on the filter bottle head 311. The filter bottle head 311 does not require any other additional structures except the above structures, and the overall structure is simple. After the filter bottle head and the inner core are assembled, a raw water channel is formed between the circumferential outer side of the inner core and the inner surface of the bottle body. The inner core has a purified water channel inside. The raw water channel communicates with the inlet channel of the filter bottle head, and the purified water channel communicates with the outlet channel of the filter bottle head through the water outlet port of the inner core. After the above assembly, there is no relative movement between the filter bottle head and the inner core, which can fundamentally solve the problem of water leakage. The materials and process costs of the filter bottle structure are low, especially suitable for use as an overall disposable filter element, and there is no pollution problem caused by replacing the inner core. Therefore, this solution solves the sealing problem caused by spin welding while ensuring simple structure, low cost and no pollution, and reduces the risk of water leakage.

[0071] To further simplify the production process of the filter bottle, it is preferred that the filter bottle head and the bottle body are integrally formed, and the assembly operation is simpler.

[0072] When the plug-in filter element of this embodiment is assembled on a water purifier, it can be hermetically connected by correspondingly aligning the water inlet 313 and the water outlet 320 with the water inlet valve and the water outlet valve on the water circuit board 2 respectively. For the convenience of plugging, the water inlet and the water outlet are formed on the outer side of the filter bottle head and protrude outward from the outer surface of the filter bottle head.

[0073] As Figure 15 shown, a sealing ring 341 is sleeved on the outer side of the water outlet port of the inner core 34 for sealing between the water outlet port of the inner core and the water outlet channel. Taking the example shown in the figure, specifically, generally, the middle part of the inner core 34 is several layers of filter membranes. The upper end of the filter membrane has an upper cover 342 of the inner core, and the lower end has a lower cover of the inner core (not shown in the figure). The upper cover 342 of the inner core is used to block the upper end part of the filter membrane to prevent raw water from entering the inside of the filter element 3 from the upper end part of the filter membrane. The lower cover of the inner core is used to block the lower end part of the filter membrane to prevent raw water from entering the inside of the filter element 3 from the lower end part of the filter membrane. In this way, the raw water can only enter the inside of the filter element 3 from the circumferential side surface of the filter membrane and achieve the purification effect through layer-by-layer filtration. The water purification channel of the inner core is generally located in its central part to ensure that the purification effect remains the same regardless of which position on the circumferential side surface the purified water enters. The water outlet port of the inner core is formed on the upper cover of the inner core and is a convex structure extending upward. The water outlet port is inserted into the water outlet channel of the filter bottle head and is communicated with the water purification channel of the inner core. By sleeving a sealing ring on the outer side of the water outlet port, the sealing ring can be an O-shaped sealing ring, which is used to seal between the water outlet port of the inner core and the water outlet channel to prevent raw water from entering the water purification channel between the water outlet port and the water outlet channel and contaminating the purified water in the water purification channel.

[0074] Since the length of the inner core is relatively long, after the upper end part of the inner core is fixed to the filter bottle head 311, the inner core 34 is likely to be inclined and not coaxial with the filter bottle 31, resulting in inconsistent distances between the circumferential direction of the inner core 34 and the inner wall of the bottle body 312, which affects the purification efficiency. As Figure 14 shown, preferably, a convex column 318 extending upward is formed on the upper surface of the lower end cover 317 of the filter element, and a guiding hole (not shown in the figure due to the angle) is formed on the lower surface of the inner core 34. The convex column 318 is inserted into the guiding hole. The convex column 318 is located at the center of the lower end cover 317. When the lower end cover 317 is rotationally melted with the bottle body 312, the convex column 318 rotates around the axis in the guiding hole, which can play a role in straightening the inner core and preventing inclination.

[0075] A convex structure can also be formed by extending downward from the lower surface of the inner core 34, and the guiding hole can be opened on the convex structure, or a blind hole-like structure extending upward from the lower surface of the inner core and on the lower surface of the inner core can be formed, and this blind hole structure is used as the guiding hole. Of course, the guiding hole is not limited to the above two examples, and other implementation schemes can also be adopted, which all belong to the protection scope of the present invention.

[0076] The lower end cap 317 plays a role in bearing the weight of the filter bottle, the inner core, and the water entering the filter element 3 during filtration. To improve the load-bearing strength of the lower end cap, several reinforcing ribs are formed circumferentially on the convex column 318, and the reinforcing ribs extend outward to the inner side wall of the lower end cap. Preferably, the reinforcing ribs are evenly distributed around the convex column, so that the load-bearing capacity of each part is uniform.

[0077] Currently, water purifiers on the market usually install an ultraviolet sterilization device 6 before the final pure water outlet to eliminate bacteria in the pure water outlet. At present, most of the ultraviolet sterilization devices on the market are connected to the water supply pipeline through hoses and quick connectors, etc. This connection method has a high risk of leakage and occupies a lot of space. In this embodiment, a sterilization device adapted to be installed on the water circuit board 2 is also proposed, such as Figure 5 , Figure 16 , Figure 17 As shown, the ultraviolet sterilization device 6 is arranged in the housing 1 of the water purifier. A sterilization connection port 23 is also arranged on the water circuit board 2. The ultraviolet sterilization device 6 includes a tube shell 61 and a diversion sleeve 62 arranged in the tube shell 61. The outer wall of the diversion sleeve 62 and the inner wall of the tube shell 61 enclose a first cavity 60a. An inlet connection port 63 and an outlet connection port 64 are arranged on the side wall of the tube shell 61. The first cavity 60a is communicated with the inlet connection port 63, and the inner cavity 60b of the diversion sleeve is communicated with the outlet connection port 64. An overflow hole (not shown in the figure due to angle reasons) is opened at the bottom of the diversion sleeve 62 for communicating the first cavity 60a and the inner cavity 60b of the diversion sleeve. The upper end of the diversion sleeve 62 is hermetically connected to the tube shell 61. The water to be sterilized enters the tube shell from the inlet connection port, then enters the diversion tube sleeve through the overflow hole, and finally flows out through the outlet connection port. An ultraviolet sterilization component 65 is arranged in the tube shell for irradiating and sterilizing the water entering the tube shell.

[0078] In order for the water in the first cavity 60a to uniformly enter the diversion sleeve 62 through the overflow hole, it is preferred that the overflow hole is located at the center of the diversion sleeve 62. The diversion sleeve 62 is preferably a cylindrical sleeve. The diversion sleeve 62 and the inner wall of the tube shell 61 enclose a ring-shaped columnar first cavity 60a. The water entering the first cavity 60a from the inlet connection port 63 can uniformly enter the diversion sleeve 62 through the overflow hole, which is beneficial to extending the water path and the sterilization time, and enhancing the sterilization effect.

[0079] The ultraviolet sterilization component can be an ultraviolet sterilization LED component, which can be arranged at the bottom of the tube shell 61 and irradiate upward, or arranged at the top of the diversion sleeve 62 and irradiate downward. Since the ultraviolet sterilization LED component is an electronic device and needs to be powered on to work normally, the sterilization device is sealed in a transparent shell, which can not only ensure the transmission of ultraviolet light but also isolate it from water to prevent short circuits.

[0080] Since the water inlet connection port 63 and the water outlet connection port 64 are arranged at the upper part of the pipe shell 61, it is preferable to arrange the ultraviolet sterilization device at the bottom of the pipe shell 61, so that there is more sufficient space to connect and arrange structures such as a transparent shell and electric wires for sealing the sterilization device.

[0081] And the ultraviolet sterilization device is coaxially arranged with the flow-through hole, and it irradiates in the direction of the flow-through hole, which can ensure that the water entering the diversion sleeve 62 through the flow-through hole can be irradiated and sterilized.

[0082] In order to enable more water in the pipe shell to be irradiated by ultraviolet light, it is preferable that the diversion sleeve 62 is made of a light-transmitting material, especially transmitting ultraviolet light. When the ultraviolet sterilization device irradiates towards the flow-through hole, the ultraviolet light can penetrate the pipe wall of the diversion sleeve 62 and enter the first cavity, and at the same time can irradiate and sterilize the incoming water. Whether the water flow is in the first cavity or inside the diversion sleeve, it can be irradiated, prolonging the irradiation and sterilization time, making the sterilization more sufficient and improving the sterilization effect.

[0083] In order not to increase the overall volume of the water purifier while increasing the ultraviolet sterilization device, it is preferable that the sterilization connection port 23 is arranged on one side of the water circuit board 2 facing the filter element 3. Therefore, the sterilization connection port 23 and other valve connection ports 22, as well as the filter element connection port 21 and other structures are all located on one side of the water circuit board 2 facing the filter element, avoiding the problem that if the sterilization connection port is arranged towards the rear cavity, the front and rear thickness of the water purifier will increase.

[0084] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present invention should also fall within the protection scope of the present invention.

Claims

1. A water purifier, comprising a housing, a water circuit board and a filter element. The filter element is arranged in the housing and is hermetically connected to the water circuit board. It is characterized in that: An inner partition is arranged in the housing. The inner partition divides the interior of the housing into a front cavity and a rear cavity. The filter element is arranged in the front cavity, and the water circuit board is arranged in the rear cavity. The water circuit board has a filter element connection port, and a connection hole is formed on the inner partition. The water inlet and outlet of the filter element pass through the connection hole and are hermetically connected to the filter element connection port. The filter element includes a filter bottle and an inner core arranged in the filter bottle. One end of the filter bottle is hinged with a handle. The filter bottle includes a filter bottle head and a bottle body connected to the filter bottle head. The filter bottle head is formed with a water inlet and a water outlet. The handle is an annular structure with one end open. The handle is hinged to the filter bottle head through two hinge structures, and the two hinge structures are respectively located on both sides of the water inlet and the water outlet. The hinge structure includes a hinge shaft formed on the inner side of the handle and a groove formed on the side wall of the bottle body. The hinge shaft is inserted into the groove. The two ends of the handle respectively extend along the length direction of the handle from the hinge shaft to form connecting arms. A first claw is formed at the free end of the connecting arm. The opening direction of the first claw is located on the tangent of the arc formed by the connecting arm rotating around the hinge shaft. A convex structure is formed on at least one side of the inner partition located at the connection hole. A second claw is formed on the convex structure. The opening direction of the second claw is opposite to the opening direction of the first claw. When the handle rotates around the axis, the first claw and the second claw are engaged or disengaged. The included angle between the handle and the reverse extension line of the connecting arm is an acute angle. A limiting rib is formed on one side of the bottle body located at the groove. The height of the limiting rib is greater than the gap between the handle and the filter bottle. The limiting rib is used to support the handle to be held at a certain angle. A positioning rib is formed on the other side of the bottle body located at the groove. The height of the positioning rib is greater than the gap between the handle and the filter bottle.

2. The water purifier according to claim 1, It is characterized in that: A valve connection port is formed on the water circuit board. The valve connection port and the filter element connection port are located on the same side of the water circuit board.

3. The water purifier according to claim 2, It is characterized in that: There are multiple filter elements. Concave arc surface structures corresponding to the filter elements one by one are formed on the side surface of the inner partition facing the front cavity. The arc radius of each concave arc surface structure matches the radius of the corresponding filter element. The filter elements are closely attached and arranged in the concave arc surface structures. The water inlet and outlet of the filter elements pass through the connection holes and are hermetically connected to the filter element connection ports.

4. The water purifier according to claim 3, It is characterized in that: The backs of two adjacent concave arc surface structures form a V-shaped gap. The setting direction of the valve connection port faces the V-shaped gap.

5. The water purifier according to any one of claims 1-4, It is characterized in that: The housing includes an upper top plate, a lower bottom plate and two side plates at both ends. A recessed part is formed on the upper surface of the lower bottom plate, and a water leakage detection module is arranged in the recessed part.

6. The water purifier according to claim 5, It is characterized in that: A through water hole is formed at the lower end of the inner partition plate, and the water hole is located at the projection position where the recess projects onto the inner partition plate.

7. The water purifier according to claim 1, characterized in that: An inlet channel communicating with the inlet and an outlet channel communicating with the outlet are formed in the filter bottle head. The water outlet port of the inner core is connected to the outlet channel. An assembly opening is formed at the bottom of the bottle body, and a lower end cover is hermetically fixed at the assembly opening.

8. The water purifier according to claim 7, characterized in that: The filter bottle head and the bottle body are of an integrally formed structure.

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