Anti-overflow filter element and water purifier

Abstract

The invention relates to the technical field of filter elements, in particular to an anti-overflow filter element and a water purifier.The anti-overflow filter element comprises a shell, a transverse filter layer, a rear carbon layer, a mounting frame, a driving mechanism, blades, a flow turning mechanism and a water outlet, the transverse filter layer and the rear carbon layer are sequentially mounted in the shell from bottom to top, and the transverse filter layer comprises a PP cotton layer and an activated carbon layer; the mounting frame is mounted above a rear carbon layer, the driving mechanism is mounted at the mounting frame, the blades are mounted in the mounting frame, the flow turning mechanism is mounted at the blades, the water outlet is formed in the side wall of the mounting frame, water flow drives the flow turning mechanism to move through the driving mechanism, and the opening speed of the water flow and the flow discharge size are associated through the opening and closing mechanism. And therefore, the flow can be adjusted in a self-adaptive manner through the internal blades when the discharge amount of the flow is small.

Description

Technical Field

[0001] The invention relates to the technical field of filter elements, in particular to an anti-overflow filter element and a water purifier. Background Art

[0002] Overflow-proof filter elements refer to filter elements that have the characteristics of preventing liquid overflow or leakage in their structure and functional design. They are usually made of special materials and structures. They can prevent liquid from overflowing from the top or sides of the filter while filtering the liquid, ensuring the safety and efficiency of the system.

[0003] In daily life, the filter element needs to consider its own impurity blocking efficiency and convenience. After a period of use, dust will adhere to the surface of the filter element, which will affect the efficiency of the filter element. In addition, the filter element is also affected by the range of water flow changes. When the water flow is large, the speed of the water flowing through the filter element is faster, and the amount that needs to pass through the filter element per unit time is more, which will cause water overflow from the filter element.

[0004] In order to solve the above problems, a variety of solutions have been proposed in the prior art, such as a rotating filter element structure with patent number CN107485902B. By setting up a rotating filter element structure, the filter element can be installed upside down and rotated to be taken out, which is convenient for replacing the filter element and can close the water passage of the filter element through the movement of the rotating part when the filter element is taken out, thereby preventing water from overflowing after the valve is closed. Although this method improves the anti-overflow effect of the filter element, it is difficult for people to control the pressure of the water flow during daily use, and overflow will occur when the water pressure is too high. At this time, overflow cannot be prevented in time, which will have a certain impact on the surrounding environment and property safety.

[0005] Based on this, in order to solve the problem of how to regulate the water flow rate to be proportional to the overflow prevention ability in daily household use, thereby avoiding the overflow of water due to a sudden increase in pressure, the present invention designs an overflow prevention filter element and water purifier. Summary of the invention

[0006] The present invention provides an anti-overflow filter element and water purifier, which aims to solve the problem of how to regulate the water flow speed to be proportional to the anti-overflow ability in daily household use, thereby avoiding the overflow of water due to a sudden increase in pressure. The opening and closing mechanism links its own opening speed with the flow discharge size, and then the internal blades can adaptively adjust the flow size when the flow discharge is small.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides an anti-overflow filter element, comprising an outer shell, a transverse filter layer, a rear carbon layer, a mounting frame, a driving mechanism, blades, a flow diversion mechanism, and a water outlet. The outer shell is provided with a transverse filter layer and a rear carbon layer in sequence from bottom to top, the transverse filter layer comprises a PP cotton layer and an activated carbon layer, the mounting frame is installed above the rear carbon layer, the driving mechanism is installed at the mounting frame, the blades are installed in the mounting frame, the flow diversion mechanism is installed at the blades, and the water outlet is arranged on the side wall of the mounting frame, the water flow drives the flow diversion mechanism to move through the driving mechanism, the flow diversion mechanism drives the blades to rotate when the water flow overflows, and the flow rate of the water flow entering the water outlet is proportional to the rotation angle of the blades; the opening of the blades can also realize the storage of the water flow, realize reverse osmosis, and also store part of the water flow, and then when the water flow stops, the internal filter element is cleaned by reversely counterflowing this part of the water flow, so as to avoid the accumulation of impurities affecting the cleaning efficiency of the filter element.

[0009] Preferably, the driving mechanism includes a sealing ring, a guide chamber, a floating plate, an overflow hole, a pull rod, and a swivel. The sealing ring is installed in a mounting frame, the guide chamber is opened inside the sealing ring, the floating plate is installed in the guide chamber, the overflow hole is arranged above the side wall of the sealing ring, the pull rod is installed below the floating plate, the swivel is installed at the bottom of the sealing ring, a movable groove is opened at the bottom of the swivel, a wedge block is installed at the bottom of the pull rod, and the movable groove is wedge-fitted with the wedge block; the pull rod will cooperate with the movable groove by means of the wedge-shaped cooperation of the wedge block, and then during the rising process of the pull rod, the swivel will be driven to rotate through the wedge block, thereby realizing the opening and closing of the flow diversion mechanism.

[0010] Preferably, the flow diversion mechanism includes a fixed ring, a lever, a connecting rod, and a rotating shaft, the fixed ring is installed on the top of the rear carbon layer, one end of the lever is installed on the bottom of the rotating ring, one end of the connecting rod is installed on the other end of the lever, the rotating shaft is installed on the fixed ring, the other end of the connecting rod is connected to the rotating shaft, and the rotating shaft is connected to the side of the blade; when the water flow rate is large, the greater the amplitude of the blade rotation, the larger the gap left between the blades, and the more water is naturally discharged, so the amount of water overflow can be adjusted according to the size of the water flow rate.

[0011] Preferably, the thickness of the blade decreases from the free end to the connecting end along the arc surface, and the inner ends of the blade fit together and form a closed loop when the water flow does not overflow; the shape of the blade is streamlined, which can gradually increase the flow speed of water along the blade, thereby improving the effect of water discharge with the size of the water flow.

[0012] Preferably, a water tank is provided at the mounting frame, the mouth of the water tank is connected to the water outlet, and the water tank is arranged upward along the water outlet; the water in the water tank will flow back into the filter element through the water outlet, and then clean the surface of the filter element in the opposite direction, thereby avoiding the reduction of water flow rate caused by clogging of the filter element surface.

[0013] Preferably, the cross-section of the sealing ring is in the shape of an inverted triangle, and an overflow port is provided on the outer shell of the sealing ring. A one-way membrane is installed at the overflow port, so that the water in the water storage tank will not flow back to the outside along the overflow port, thereby improving the efficiency of overflow prevention.

[0014] Preferably, a collecting chamber is opened at the bottom of the shell, the top cross-section of the collecting chamber is ear-shaped, a water inlet is installed above the collecting chamber, and a discharge port is installed directly below the collecting chamber; when impurities are inside, they are blocked by the side wall of the collecting chamber and will not flow back to the surface of the filter element, thereby improving the cleaning effect of the impurities.

[0015] Preferably, the thickness of the floating plate is more than twice the height of the overflow hole, and the bottom end of the floating plate is flush with the bottom end of the overflow hole when the water flow does not overflow. Preferably, a sealing hole is opened on the bottom plate, and a limit rod is installed on the back of the movable plate. The limit rod is sealed and slidably connected with the sealing hole, which limits the sliding track of the movable plate, and the synchronous limit rod forms a horizontal mesh structure inside, which improves the wind resistance and structural strength; when the water flow does not overflow, there will be no water pressing on the top of the floating plate, thereby affecting the normal floating effect of the floating plate.

[0016] A water purifier, suitable for any one of the above-mentioned anti-overflow filter elements, comprising a water purifier body, a placement box, an interface, a telescopic box and a slide, the water purifier body is located outside the filter element, the placement box is installed on the side wall of the shell at a position corresponding to the swivel, the interface passes through the placement box and is connected to the swivel, a corresponding movable groove is provided at the interface, the telescopic box slides in the placement box, the slide is opened on the telescopic box, and the slide corresponds to the interface; when the slide slides from the horizontal direction to the longitudinal direction, the telescopic box will expand downward along the placement box, and then the collection chamber of the water flow can use the telescopic box to collect overflow water.

[0017] The outer walls of the housing box and the water tank are made of transparent materials, and a contact switch is installed on the top of the floating plate. The specific conditions of internal water overflow and reverse osmosis can be observed through the transparent shell, and the size of the water flow can be known according to the height of the floating plate.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The present invention proposes an anti-overflow filter element. When a mounting frame, a driving mechanism and blades are installed, the driving mechanism is controlled by the size of the water flow, and the flow diversion mechanism is driven by the driving mechanism. The flow diversion mechanism opens or closes the water outlet through the rotation of the blades themselves, thereby forming a one-way or two-way flow channel. At the same time, the opening of the blades can also realize the storage of water flow, which can achieve reverse osmosis overflow, and can also store part of the water flow. When the water flow stops, the internal filter element is cleaned by reversing the countercurrent of this part of the water flow, thereby avoiding the accumulation of impurities that affect the cleaning and anti-overflow efficiency of the filter element.

[0020] 2. The present invention proposes an overflow-proof filter element. When the internal water pressure is large enough, the pressure in the guide chamber will also increase accordingly, thereby driving the float plate to move upward. Due to the existence of the overflow hole, when the float plate moves upward to a certain distance, the float plate cannot adjust the amount of outflow from the overflow hole. However, in this process, as the area of ​​the overflow hole gradually increases, the water is naturally discharged in a progressive manner, thereby improving the efficiency of water overflow prevention. In the process of the float plate moving upward, the pull rod will cooperate with the movable groove in a wedge-shaped manner through the wedge-shaped cooperation of the wedge block, and then in the process of the pull rod rising, the wedge block will drive the swivel to rotate, thereby realizing the opening and closing of the flow diverting mechanism, thereby improving the water evacuation efficiency that increases with the water flow rate when the water overflows.

[0021] 3. The present invention proposes an anti-overflow filter element. When the swivel rotates due to the upward action of the pull rod, the swivel and the fixed ring rotate relative to each other, the fixed ring and the rear carbon layer are fixed to each other, and the water flow can flow through the rear carbon layer and then flow out through the fixed ring. At this time, the lever is connected to the swivel, and a connecting rod mechanism is formed among the swivel, the lever and the connecting rod, so that the free end of the connecting rod can be driven to rotate when the swivel rotates, and the free end of the connecting rod is fixed to the rotating shaft, so that the rotating shaft can be driven to rotate when the swivel rotates, and the rotating shaft is connected to the blades, so that the blades can be driven to rotate when the swivel rotates, thereby realizing the adjustment of the water flow rate. At the same time, when the water flow rate is large, the greater the amplitude of the blade rotation, the larger the gap left between the blades, and the more water is naturally discharged, so the amount of water overflow can be adjusted according to the size of the water flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation mode of the present invention or the technical solution in the prior art, the drawings required for use in the specific implementation mode or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are one implementation mode of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a partial cross-sectional schematic diagram of the filter element of the present invention;

[0024] Figure 2 is a cross-sectional view of the driving mechanism of the present invention;

[0025] Figure 3 It is an exploded view of the driving mechanism of the present invention;

[0026] Figure 4 is a schematic diagram of the flow diversion mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the collecting chamber of the present invention;

[0028] Figure 6 is an exploded view of the flow diverting mechanism of the present invention;

[0029] Figure 7 It is a state diagram of the flow diverting mechanism of the present invention;

[0030] Figure 8 It is a schematic diagram of the water purifier body of the present invention;

[0031] Fig. 9 It is a schematic diagram of the telescopic box of the present invention.

[0032] In the figure: 1. shell; 11. water storage tank; 12. overflow outlet; 13. one-way membrane; 2. transverse filter layer; 21. PP cotton layer; 22. activated carbon layer; 3. rear carbon layer; 4. mounting frame; 5. driving mechanism; 51. sealing ring; 52. guide chamber; 53. floating plate; 54. overflow hole; 55. pull rod; 551. wedge block; 56. swivel; 561. movable groove; 6. blade; 7. flow diversion mechanism; 71. fixing ring; 72. lever; 73. connecting rod; 74. rotating shaft; 8. water outlet; 9. collecting chamber; 91. water inlet; 92. discharge outlet; 10. water purifier body; 101. placement box; 102. interface; 103. telescopic box; 104. slide groove; 105. contact switch. DETAILED DESCRIPTION

[0033] In order to better understand the above solution, the above technical solution is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] like Figure 1As shown, an anti-overflow filter element provided by the present invention comprises an outer shell 1, a transverse filter layer 2, a rear carbon layer 3, a mounting frame 4, a driving mechanism 5, blades 6, a flow diversion mechanism 7, and a water outlet 8. The transverse filter layer 2 and the rear carbon layer 3 are sequentially installed in the outer shell 1 from bottom to top. Water flows from the outside to the filter element, and passes through the transverse filter layer 2 and the rear carbon layer 3 in sequence. The transverse filter layer 2 comprises a PP cotton layer 21 and an activated carbon layer 22, thereby achieving adsorption of internal impurities; the mounting frame 4 is installed at the rear carbon layer 3, and the driving mechanism 5 is installed at the mounting frame 4. Under the loading of the mounting frame 4, the driving mechanism 5 and the blades 6, the whole will control the driving mechanism 5 through the size of the water flow, and the driving mechanism 5 will drive the diverting mechanism 7. The diverting mechanism 7 opens or closes the water outlet 8 through the rotation of the blades 6 themselves, thereby forming a one-way or two-way flow channel. At the same time, the opening of the blades 6 can also realize the storage of the water flow, which can realize reverse osmosis overflow, and can also store part of the water flow. Then, when the water flow stops, the internal filter element is cleaned by reversely counterflowing this part of the water flow, avoiding the accumulation of impurities affecting the cleaning efficiency of the filter element. The blades 6 are installed in the mounting frame 4, the diverting mechanism 7 is installed at the blades 6, and the water outlet 8 is set on the side wall of the mounting frame 4. The water flow drives the diverting mechanism 7 to move through the driving mechanism 5. The diverting mechanism 7 drives the blades 6 to rotate when the water flow overflows. The flow rate of water entering the water outlet 8 is proportional to the rotation angle of the blades 6.

[0035] like Figure 2-4 As shown, the driving mechanism 5 includes a sealing ring 51, a guide chamber 52, a floating plate 53, an overflow hole 54, a pull rod 55, and a swivel 56. The sealing ring 51 is installed in the mounting frame 4, the guide chamber 52 is opened inside the sealing ring 51, the floating plate 53 is installed in the guide chamber 52, the overflow hole 54 is arranged above the side wall of the sealing ring 51, the pull rod 55 is installed below the floating plate 53, the swivel 56 is installed at the bottom of the sealing ring 51, a movable groove 561 is opened at the bottom of the swivel 56, a wedge block 551 is installed at the bottom of the pull rod 55, and the movable groove 561 is wedge-shapedly matched with the wedge block 551.

[0036] The sealing ring 51 is located at the top of the housing 1. When the internal water pressure is large enough, the pressure in the guide cavity 52 will also increase, which will drive the floating plate 53 to move upward. Due to the existence of the overflow hole 54, when the floating plate 53 moves upward to a certain distance (the bottom end of the floating plate 53 leaves the top end of the overflow hole 54), the floating plate 53 cannot adjust the amount of outflow from the overflow hole 54. However, in this process, as the area of ​​the overflow hole 54 gradually increases, it is naturally drained in a progressive manner, thereby improving the efficiency of water overflow prevention. When the floating plate 53 moves upward, the floating plate 53 moves upward to a certain distance (the bottom end of the floating plate 53 leaves the top end of the overflow hole 54). During the movement, the pull rod 55 moves upward. A rubber gasket is installed at the pull rod 55. When the pull rod 55 moves to the top, the rubber gasket just covers the bottom of the pull rod 55 that passes through the sealing ring 51, thereby improving the sealing effect of the sealing ring 51; at the same time, the pull rod 55 will cooperate with the movable groove 561 through the wedge-shaped cooperation of the wedge block 551, and then in the process of the pull rod 55 rising, the wedge block 551 will drive the swivel 56 to rotate, thereby realizing the opening and closing of the flow diverting mechanism 7, thereby improving the water evacuation efficiency that increases with the water flow when the water flow is overflowing.

[0037] like Figure 4 , 6 As shown, the flow conversion mechanism 7 includes a fixed ring 71, a lever 72, a connecting rod 73, and a rotating shaft 74. The fixed ring 71 is installed on the top of the rear carbon layer 3, one end of the lever 72 is installed on the bottom of the rotating ring 56, one end of the connecting rod 73 is installed on the other end of the lever 72, and the rotating shaft 74 is installed on the fixed ring 71. The other end of the connecting rod 73 is connected to the rotating shaft 74, and the rotating shaft 74 is connected to the side of the blade 6.

[0038] When the swivel 56 is rotated by the upward action of the tension rod 55, the swivel 56 and the fixed ring 71 rotate relatively, the fixed ring 71 and the rear carbon layer 3 are fixed to each other, and the water flow can flow through the rear carbon layer 3 and then flow out through the fixed ring 71. At this time, the lever 72 is connected to the swivel 56, and a connecting rod 73 mechanism is formed between the swivel 56, the lever 72 and the connecting rod 73, so that the free end of the connecting rod 73 can be driven to rotate when the swivel 56 rotates, and the free end of the connecting rod 73 is fixed to the rotating shaft 74, so that when the swivel 56 rotates, the rotating shaft 74 will be driven to rotate, and the rotating shaft 74 is connected to the blades 6, so that when the swivel 56 rotates, the blades 6 will be driven to rotate, so as to adjust the water flow rate. At the same time, when the water flow rate is large, the greater the rotation amplitude of the blades 6, the larger the gap left between the blades 6, and the more water is naturally discharged, so that the amount of water overflow can be adjusted according to the size of the water flow rate.

[0039] like Figure 7 As shown, the thickness of the blade 6 decreases from the free end to the connection end along the arc surface direction. When the water flow does not overflow, the inner end of the blade 6 fits together and forms a closed loop, and the blade 6 is made of elastic material.

[0040] During the rotation of blades 6, since the head ends of multiple blades 6 and the ends of adjacent blades 6 can form a whole circle with each other, the blades 6 may interfere with each other when they rotate. At this time, if blades 6 are made of elastic material, they can be deflected during the rotation of blades 6, and naturally no physical interference will be formed. At the same time, the shape of blades 6 is streamlined, which can gradually increase the flow speed of water along blades 6, thereby improving the effect of water discharge with the size of water flow, that is, improving the efficiency of water overflow prevention.

[0041] like Figure 1 As shown, a water tank 11 is provided at the mounting frame 4 , the mouth of the water tank 11 is connected to the water outlet 8 , and the water tank 11 is arranged upward along the water outlet 8 .

[0042] During the water overflow prevention process, part of the diverted and discharged water will enter the water storage tank 11 for buffering. When the staff observes that the water overflows there, they will close the valve. At this time, the water in the water storage tank 11 will flow back into the filter element through the water outlet 8, and then clean the surface of the filter element in the opposite direction, thereby avoiding the reduction of water flow rate caused by blockage of the filter element surface, thereby improving the water overflow prevention effect and realizing the self-cleaning of the filter element.

[0043] like Figure 1-2 As shown, the cross-section of the sealing ring 51 is in the shape of an inverted triangle, and an anti-overflow port 12 is provided on the outer shell 1 of the sealing ring 51 , and a one-way membrane 13 is installed at the anti-overflow port 12 .

[0044] When there is too much water flow and it still flows to the sealing ring 51, the shape of the sealing ring 51 can block the edge of the water flow, and the unblocked water flow will continue to flow upward and then flow back into the water storage tank 11 from the anti-overflow port 12. Due to the setting of the one-way membrane 13, the water flow in the water storage tank 11 will not flow back to the outside along the anti-overflow port 12 at this time, thereby improving the efficiency of overflow prevention.

[0045] like Figure 5 As shown, a collecting chamber 9 is provided at the bottom of the housing 1 , the top cross-section of the collecting chamber 9 is ear-shaped, a water inlet 91 is installed above the collecting chamber 9 , and a discharge port 92 is installed directly below the collecting chamber 9 .

[0046] The collecting chamber 9 can block the side wall at the bottom. When the water in the water tank flows back to flush the internal impurities downward, the impurities will fall to the bottom of the collecting chamber 9 and can be discharged through the discharge port 92. When the impurities are inside, they are blocked by the side wall of the collecting chamber 9 and will not flow back to the surface of the filter element, thereby improving the cleaning effect of the impurities.

[0047] The thickness of the floating plate 53 is more than twice the height of the overflow hole 54 , and the bottom end of the floating plate 53 is flush with the bottom end of the overflow hole 54 when the water flow does not overflow.

[0048] In order to ensure that water does not enter the top of the float plate 53, it is preferentially set that the float plate 53 is always higher than the upper surface of the overflow hole 54, so that when the water flow does not overflow, there will be no water pressing on the top of the float plate 53, thereby affecting the normal floating effect of the float plate 53, thereby affecting the floating effect of the float plate 53 under the action of the water flow, and further affecting the overflow prevention effect.

[0049] like Figure 8-9 As shown, a water purifier is suitable for any of the above-mentioned anti-overflow filter elements, including a water purifier body 10, a placement box 101, an interface 102, a telescopic box 103 and a slide 104, the water purifier body 10 is located on the outside of the filter element, the placement box 101 is installed on the side wall of the shell 1 corresponding to the swivel 56 position, the interface 102 passes through the placement box 101 and is connected to the swivel 56, a corresponding movable groove 561 is provided at the interface 102, the telescopic box 103 slides in the placement box 101, the slide 104 is opened on the telescopic box 103, and the slide 104 corresponds to the interface 102.

[0050] It is connected to the swivel 56 through the interface 102. When the swivel 56 rotates, the interface 102 will also rotate accordingly. At this time, the interface 102 also slides in the movable groove 561, and synchronously slides in the slide groove 104. The slide groove 104 is L-shaped. When the slide groove 104 slides from the horizontal direction to the longitudinal direction, the telescopic box 103 will be unfolded downward along the placement box 101, and then the water collection chamber 9 will be unfolded. The telescopic box 103 can be used to collect overflow water.

[0051] The outer wall of the housing 1 where the placement box 101 and the water tank 11 are located are both made of transparent material, and a contact switch 105 is installed on the top of the floating plate 53.

[0052] The specific conditions of internal water overflow and reverse osmosis can be observed through the transparent shell 1, and the size of the water flow can be known according to the height of the float plate 53. The size of the valve can then be adjusted according to the size of the water flow, thereby improving the overall convenience. When the water flow is too large, the float plate 53 contacts the contact switch 105, thereby triggering an alarm, and adjustments can be made quickly.

[0053] When the water purifier is needed, the staff opens the valve of the water flow, and the water flows through the water inlet 91, passes through the transverse filter layer 2, the rear carbon layer 3, and is discharged. When the water flow gradually increases, the driving mechanism 5 at the mounting frame 4 is affected by the water flow, and gradually drives the blades 6 to rotate through the flow transfer mechanism 7, thereby gradually increasing the diversion diameter of the water flow, thereby improving the effect of preventing water flow from overflowing.

[0054] Specifically, when the water flow increases, the impact pressure of the water flow on the floating plate 53 in the sealing ring 51 increases. At this time, the floating plate 53 will be affected by the water flow and move upward, thereby opening the overflow hole 54. At this time, part of the water flow can flow out of the overflow hole 54. As the water flow continues to increase, the floating plate 53 gradually rises and pulls the wedge block 551 through the pull rod 55. The wedge block 551 cooperates with the active groove 561 at the swivel 56. The wedge block 551 can drive the swivel 56 to rotate. When the swivel 56 rotates, The rotating shaft 74 will be driven to rotate synchronously through the lever 72 and the connecting rod 73. At this time, the rotating shaft 74 is fixedly connected to the blades 6, and then the rotating shaft 74 gradually opens the blades 6, and the gaps between the blades 6 gradually increase, thereby expanding the path of water diversion and improving the water diversion and overflow prevention efficiency; the water will flow into the water storage tank 11 along the water outlet 8, and then after the valve is closed, the water in the water storage tank 11 can flow back to the filter element, and then the filter element is reversely cleaned to avoid blockage and improve the overflow prevention effect.

[0055] The basic principles and beneficial effects of the present invention are shown and described above. At the same time, the present invention is not limited to the above embodiments. Without departing from the effects and scope of the present invention, the present invention may have various changes and improvements. These changes and improvements all fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An anti-overflow filter element, characterized in that: The invention comprises an outer shell (1), a transverse filter layer (2), a rear carbon layer (3), a mounting frame (4), a driving mechanism (5), blades (6), a flow diversion mechanism (7), and a water outlet (8). The transverse filter layer (2) and the rear carbon layer (3) are sequentially mounted in the outer shell (1) from bottom to top. The transverse filter layer (2) comprises a PP cotton layer (21) and an activated carbon layer (22). The mounting frame (4) is mounted at the rear carbon layer (3). The driving mechanism (5) is mounted at the mounting frame (4). The blades (6) are mounted in the mounting frame (4). The flow diversion mechanism (7) is mounted at the blades (6). The water outlet (8) is arranged on the side wall of the mounting frame (4). The water flow drives the flow diversion mechanism (7) to move through the driving mechanism (5). The flow diversion mechanism (7) drives the blades (6) to rotate when the water flow overflows. The flow rate of the water flow entering the water outlet (8) is proportional to the rotation angle of the blades (6).

2. The anti-overflow filter element according to claim 1, characterized in that: The driving mechanism (5) comprises a sealing ring (51), a flow guide chamber (52), a floating plate (53), an overflow hole (54), a pull rod (55), and a swivel (56); the sealing ring (51) is installed in a mounting frame (4); the flow guide chamber (52) is opened inside the sealing ring (51); the floating plate (53) is installed in the flow guide chamber (52); the overflow hole (54) is arranged above the side wall of the sealing ring (51); the pull rod (55) is installed below the floating plate (53); the swivel (56) is installed at the bottom of the sealing ring (51); a movable groove (561) is opened at the bottom of the swivel (56); a wedge block (551) is installed at the bottom of the pull rod (55); the movable groove (561) is wedge-shapedly matched with the wedge block (551).

3. The anti-overflow filter element according to claim 2, characterized in that: The flow conversion mechanism (7) comprises a fixed ring (71), a lever (72), a connecting rod (73), and a rotating shaft (74); the fixed ring (71) is mounted on the top of the rear carbon layer; one end of the lever (72) is mounted on the bottom of the rotating ring (56); one end of the connecting rod (73) is mounted on the other end of the lever (72); the rotating shaft (74) is mounted on the fixed ring (71); the other end of the connecting rod (73) is connected to the rotating shaft (74); and the rotating shaft (74) is connected to the side of the blade (6).

4. The anti-overflow filter element according to claim 3, characterized in that: The thickness of the blade (6) decreases gradually from the free end to the connection end along the arc surface direction; when the water flow does not overflow, the inner ends of the blade (6) fit together and form a closed loop; the blade (6) is an elastic structure.

5. The anti-overflow filter element according to claim 2, characterized in that: A water storage tank (11) is provided on the housing (1) at the mounting frame (4), the mouth of the water storage tank (11) is connected to the water outlet (8), and the water storage tank (11) is arranged upward along the water outlet (8).

6. The anti-overflow filter element according to claim 2, characterized in that: The cross-section of the sealing ring (51) is in the shape of an inverted triangle. An anti-overflow port (12) is provided on the outer shell (1) of the sealing ring (51), and a one-way membrane (13) is installed at the anti-overflow port (12).

7. The anti-overflow filter element according to claim 6, characterized in that: A collecting chamber (9) is provided at the bottom of the housing (1); the top cross-section of the collecting chamber (9) is ear-shaped; a water inlet (91) is installed above the collecting chamber (9); and a discharge port (92) is installed directly below the collecting chamber (9).

8. The anti-overflow filter element according to claim 2, characterized in that: The thickness of the floating plate (53) is more than twice the height of the overflow hole (54), and the bottom end of the floating plate (53) is flush with the bottom end of the overflow hole (54) when the water flow does not overflow.

9. A water purifier, comprising an anti-overflow filter element as claimed in any one of claims 1 to 8, characterized in that: The invention comprises a water purifier body (10), a placement box (101), an interface (102), a telescopic box (103) and a slide groove (104); the water purifier body (10) is located outside a housing (1); the placement box (101) is installed at a position of a swivel (56) on the side wall of the housing (1); the interface (102) passes through the placement box (101) and is connected to the swivel (56); a corresponding movable groove (561) is provided at the interface (102); the telescopic box (103) slides in the placement box (101); the slide groove (104) is provided on the telescopic box (103), and the slide groove (104) corresponds to the interface (102).

10. A water purifier according to claim 9, characterized in that: The outer walls of the housing (1) where the placement box (101) and the water storage tank (11) are located are both made of transparent material, and a contact switch (105) is installed on the top of the floating plate (53).

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