Water channeling prevention filtering device for water purifier

Abstract

The present application relates to water purifier filtering technical field, specifically to a kind of water purifier with anti water channeling filter device, including filter anti water channeling component, the inside one side of filter anti water channeling component is provided with buffer anti water channeling component, one end of filter anti water channeling component is provided with water inlet buffer assembly, the inside other side of filter anti water channeling component is provided with anti-offset component;Filter anti water channeling component includes shell, the end of shell is fixedly covered with sealing cover, the inner wall one end of shell is fixedly installed with pipe base.The present application prevents warping by filter core two ends outer ring edge bonding protection ring, prevents impact indentation by inner ring edge bonding protection sleeve, cooperates with filter core outer wall pressure ring tightening fixed and filter water pipe annular groove inner sealing ring and filter core inner wall bonding, sealing ring is equipped with annular cavity and micro spring keeps elasticity and is resisted, forms multiple anti water channeling structure, effectively avoids that filter structure appears sealing failure or water channeling due to long-term use or water pressure fluctuation.

Description

Technical Field

[0001] This invention relates to the field of water purifier filtration technology, specifically to a water purifier anti-cross-flow filtration device. Background Technology

[0002] Water purifiers are widely used water treatment equipment in homes and public places. They mainly rely on multi-stage filtration systems to remove impurities, heavy metals, bacteria, organic matter and other harmful substances from the water, providing users with safe and clean drinking water. As the core component of the water purifier's filtration system, the filter element's sealing performance and structural stability directly determine the overall water quality and service life of the machine.

[0003] In the actual operation of a water purifier, the sealing fit between the filter element and the pipeline, the impact resistance, and the structural stability are particularly crucial. A good sealing structure can prevent water pollution, and a stable installation structure can effectively resist water pressure fluctuations and water flow impacts, ensuring the long-term stable operation of the water purifier.

[0004] Currently, the filtration devices of water purifiers on the market have a relatively conventional structural design, mostly using a single-layer sealing ring to achieve a sealing fit between the filter element and the filter pipe. The overall structure lacks effective impact resistance, limit and anti-displacement design, as well as end protection design, resulting in poor structural reliability and operational stability.

[0005] The existing water purifier filtration devices use a single-layer sealed structure, which is prone to aging and deformation due to long-term water pressure fluctuations and water temperature changes. This can easily lead to seal failure and mixing of raw water and purified water, seriously affecting the quality of the output water. At the same time, water pressure fluctuations in the pipeline and the water flow impact generated by the start and stop of the equipment can cause axial movement and radial displacement of the filter element, further aggravating the seal failure. In addition, the filter element lacks a protective structure at the end, making it prone to deformation and damage such as warping and denting under the impact of water flow. Furthermore, the vibration of the filter element caused by the continuous impact of water flow can cause relative displacement between the filter element and the outer shell, resulting in misalignment of the installation position and reducing the uniformity and stability of filtration. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a water purifier anti-cross-flow filtration device, which has the advantages of multiple seals to prevent cross-flow, inlet water buffering and impact resistance, filter element anti-displacement and end protection, and can solve the problems of easy seal failure, filter element displacement due to impact and easy end damage in existing filtration devices.

[0007] To solve the above problems, the present invention provides a technical solution: a water purifier anti-water-crossing filtration device, including a filter anti-water-crossing component, a buffer anti-water-crossing component is provided on one side of the filter anti-water-crossing component, a water inlet buffer component is provided at one end of the filter anti-water-crossing component, and an anti-deviation component is provided on the other side of the filter anti-water-crossing component. The filter and anti-water-crossing assembly includes a housing, with a sealing cap fixedly covering one end of the housing. A tube seat is fixedly installed on one end of the inner wall of the housing, and a water filter tube is inserted into the tube seat. A sealing ring is fixedly fixed through the center of the sealing cap, and the sealing ring is sealed through the water filter tube. The surface of the water filter tube has several water filter holes, and a filter element is wrapped around the surface of the water filter tube. The filter element covers the outside of the water filter holes. Multiple annular grooves are opened on both sides of the water filter tube, and a sealing ring is filled inside the annular groove. The sealing ring is wrapped and bonded to the inside of the filter element. An annular cavity is opened inside the sealing ring, and several miniature springs for auxiliary compaction and deformation resistance are fixedly distributed inside the annular cavity. The filter element has protective rings bonded to both sides along the outer edge to prevent impact and warping. A pressure ring for circumferential tightening is fixedly fitted on the outer wall of the filter element, and the pressure ring is positioned close to the protective ring. The filter element has protective sleeves bonded to both sides along the inner edge to prevent impact and denting. The protective sleeves are also fixedly fitted onto the surface of the water filter pipe.

[0008] Preferably, a concentrated water discharge port is fixed through the outer shell on the side near the sealing cover, and a solenoid valve is provided on the concentrated water discharge port, with the valve core of the solenoid valve embedded inside the concentrated water discharge port.

[0009] Preferably, the buffer anti-water-crossing assembly includes a sleeve, which is fitted onto the outer wall of the filter pipe. Several support rods are distributed and fixed on the outer ring wall of the sleeve. An annular frame is fixedly fitted onto the outer end of the support rod. The outer surface of the annular frame is slidably fitted onto the inner wall of the outer shell.

[0010] Preferably, a plurality of water-blocking buffer plates 1 are fixedly distributed on one side of the inner ring wall of the annular frame, and a plurality of water-blocking buffer plates 2 are fixedly distributed on the other side of the inner ring wall of the annular frame, with the water-blocking buffer plates 1 and 2 being staggered and arranged.

[0011] Preferably, a connecting rod is symmetrically fixed on one side of the annular frame, and the end of the connecting rod is provided with an external thread, and a threaded sleeve is installed on the surface thread of the external thread.

[0012] Preferably, the surface of the filter pipe is also symmetrically fixed with connecting columns, and a limiting ring is fixedly sleeved on the surface of the connecting column. The surface of the limiting ring is fitted with the end face of the threaded sleeve. The surface of the connecting column is also provided with an external thread II, which is threadedly installed with the threaded sleeve.

[0013] Preferably, the water inlet buffer assembly includes a water inlet interface, a buffer sleeve is fixedly installed inside the water inlet interface by a bracket, a buffer rod is slidably connected inside the buffer sleeve, a high-pressure water impact protection plate is fixedly installed at one end of the buffer rod, and one side of the high-pressure water impact protection plate covers one end of the inner side of the water inlet interface.

[0014] Preferably, the end of the buffer rod away from the anti-high-pressure water impact plate is fixedly installed with an end head, and a buffer spring is wound around the surface of the buffer rod. The two ends of the buffer spring are fixedly installed to the surface of the end head and the end face of the buffer sleeve, respectively.

[0015] Preferably, the anti-displacement component includes a frame, the outer surface of which is slidably sleeved with the inner wall of the housing, and a plurality of abutting rods are distributed and fixed on the inner ring wall of the frame. The abutting rods are L-shaped, and an abutting block for preventing the filter element from being displaced by water impact is fixedly installed at the end of the abutting rod. The side of the abutting block away from the abutting rod is tightly attached to the end face of the filter element.

[0016] Preferably, a plurality of positioning sleeves are fixedly distributed on one side of the frame, and a positioning pin is slidably sleeved inside the positioning sleeve. A positioning spring is wound around the surface of the positioning pin. The two ends of the positioning spring are fixedly installed to the end face of the positioning sleeve and the surface of the positioning pin, respectively. A positioning groove corresponding to the position of the positioning pin is opened on the inner wall of the outer shell, and the end of the positioning pin away from the positioning spring is slidably inserted into the inside of the positioning groove.

[0017] The beneficial effects of this invention are: 1. This invention prevents warping by bonding protective rings to the outer edges of the filter element at both ends and to the inner edges by bonding protective sleeves to prevent impact dents. Combined with the outer wall pressure ring of the filter element for tightening and fixing, and the sealing ring in the annular groove of the water filter tube for bonding to the inner wall of the filter element, the sealing ring has an annular cavity and a micro spring to maintain elasticity and compactness, forming a multi-layer anti-water leakage structure, which effectively avoids the filtration structure from sealing failure or water leakage due to long-term use or water pressure fluctuations. 2. In this invention, the tube sleeve is fixed to the filter pipe via a support rod and an annular frame. The water-blocking buffer plate 1 and water-blocking buffer plate 2, which are staggered on both sides inside the annular frame, allow high-pressure water to flow through the curved channel to reach the filter element, avoiding direct impact of high-pressure water on the edge of the filter element and causing damage. The buffer sleeve inside the water inlet, together with the buffer rod and buffer spring, buffers the instantaneous water pressure impact when the water pump starts and stops, protecting the overall integrity of the filter structure. 3. In this invention, the frame is tightly attached to the end face of the filter element by the abutting block at the end of the abutting rod. The frame is locked in a set position inside the housing by the positioning pin and positioning groove. This prevents the filter element from axially shifting or slipping due to long-term water flow. The positioning spring ensures that the positioning pin is always locked, ensuring the positional stability of the filter structure during operation and reducing the risk of water leakage caused by shifting. Attached Figure Description

[0018] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram showing the distribution of the components of the present invention; Figure 2This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a front view of the overall structure of the present invention; Figure 4 This is a side view of the overall structure of the present invention; Figure 5 This is a schematic diagram of the internal cross-section of the present invention; Figure 6 This is a schematic diagram of the water filter pipe and annular groove of the present invention; Figure 7 This is a schematic diagram of the combination of the filter pipe and the sealing ring of the present invention; Figure 8 This is a schematic diagram showing the distribution of the filter pipe and filter element of the present invention; Figure 9 This is a schematic diagram of the combination of the filter pipe, protective ring, pressure ring, and protective sleeve of the present invention; Figure 10 This is a schematic diagram showing the positional distribution of the filter element and the water-blocking buffer plate of the present invention; Figure 11 For the present invention Figure 10 A side view; Figure 12 This is a schematic diagram of the interior of the sealing ring of the present invention; Figure 13 This is a side view of the buffer anti-water-crossing component of the present invention; Figure 14 This is a schematic diagram of the installation of the connecting rod and connecting column of the present invention; Figure 15 This is a schematic diagram of the water inlet buffer assembly of the present invention; Figure 16 This is a partial schematic diagram of the anti-offset component of the present invention; Figure 17 This is a schematic diagram of the distribution of the solid blocks according to the present invention.

[0020] In the diagram: 1. Filter anti-cross-flow assembly; 10. Outer shell; 11. Sealing cap; 12. Concentrate discharge port; 13. Solenoid valve; 14. Pipe seat; 15. Filter pipe; 16. Sealing ring; 17. Filter hole; 18. Filter element; 19. Annular groove; 110. Sealing ring; 111. Annular cavity; 112. Miniature spring; 1001. Protective ring; 1002. Pressure ring; 1003. Protective sleeve; 2. Buffer and anti-water leakage assembly; 20. Pipe sleeve; 21. Support rod; 22. Annular frame; 23. Water-blocking buffer plate one; 24. Water-blocking buffer plate two; 25. Connecting rod; 26. External thread one; 27. Threaded sleeve; 28. Connecting post; 29. ​​Limiting ring; 210. External thread two; 3. Water inlet buffer assembly; 30. Water inlet interface; 31. Buffer sleeve; 32. Buffer rod; 33. Anti-high pressure water impact plate; 34. End; 35. Buffer spring; 4. Anti-offset component; 40. Frame; 41. Support rod; 42. Support block; 43. Positioning sleeve; 44. Positioning pin; 45. Positioning spring; 46. Positioning groove. Detailed Implementation

[0021] Example 1 like Figures 1-17 As shown, the specific embodiment adopts the following technical solution: a water purifier anti-water-crossing filtration device, including a filter anti-water-crossing component 1, a buffer anti-water-crossing component 2 is provided on one side of the filter anti-water-crossing component 1, an inlet buffer component 3 is provided at one end of the filter anti-water-crossing component 1, and an anti-deviation component 4 is provided on the other side of the filter anti-water-crossing component 1. The filter anti-water-crossing component 1 protects the filter structure itself from damage and prevents water from crossing the basic structure. The buffer anti-water-crossing component 2 prevents the edge of the filter structure from being impacted by continuous high-pressure water supply. The inlet buffer component 3 can prevent instantaneous high-pressure water impact from damaging the entire filter structure during intermittent operation. The anti-deviation component 4 can prevent the filter structure from shifting and slipping due to water flow effect during continuous operation. Through the coordinated work of multiple components, the water-crossing problem of the water purifier filter component during long-term use can be minimized. The filter and anti-cross-flow water assembly 1 includes a housing 10, which is a cylindrical shell structure with a filter chamber inside. A sealing cap 11 is fixedly covered at one end of the housing 10, sealing the opening at one end. A pipe seat 14, an annular seat, is fixedly installed on one end of the inner wall of the housing 10, away from the sealing cap 11. A filter pipe 15, a circular tube structure, is inserted into the inside of the pipe seat 14. The filter pipe 15 is inserted into the inlet 14, and the other end extends out of the outer casing 10 through the sealing cover 11. A sealing ring 16 is fixed through the center of the sealing cover 11. The sealing ring 16 is sealed and penetrates the filter pipe 15, that is, the filter pipe 15 passes through the inner ring of the sealing ring 16. The sealing ring 16 seals the gap between the filter pipe 15 and the sealing cover 11. Several filter holes 17 are opened on the surface of the filter pipe 15. The filter holes 17 are through holes that penetrate the wall of the filter pipe 15 and extend along the axis of the filter pipe 15. The filter pipe 15 is distributed in the circumferential direction. The surface of the filter pipe 15 is covered with a filter element 18, which is a cylindrical filter medium. It is set outside the filter holes 17. Multiple annular grooves 19 are opened on both sides of the filter pipe 15. The annular grooves 19 are annular grooves opened along the circumferential direction of the outer wall of the filter pipe 15. Multiple grooves are set on each side. The interior of the annular grooves 19 is filled with sealing rings 110. The sealing rings 110 are annular elastic seals. The inner ring is embedded in the annular grooves 19, and the outer ring is wrapped and bonded to the inner side of the filter element 18. That is, the outer wall of the sealing ring 110 is bonded and fixed to the inner wall of the filter element 18. An annular cavity 111 is opened inside the sealing ring 110. The annular cavity 111 is a closed cavity extending along the circumference of the sealing ring 110. Several miniature springs 112 for auxiliary compaction and deformation resistance are fixed inside the annular cavity 111. The miniature springs 112 are small compression springs, evenly distributed along the circumference of the annular cavity 111, and their two ends are fixed to the inner wall of the annular cavity 111. Protective rings 1001 for preventing impact and warping are bonded to both sides of the filter element 18 along the outer edge. The protective rings 1001 are annular hard rings bonded to the outer edge of both ends of the filter element 18. A pressure ring 1002 for annular tightening is fixedly sleeved on the outer wall of the filter element 18. The pressure ring 1002 is annular tightening ring sleeved in the middle area of ​​the outer wall of the filter element 18 and is positioned close to the protective rings 1001. Protective sleeves 1003 for preventing impact and denting are bonded to both sides of the filter element 18 along the inner edge. The protective sleeves 1003 are annular sleeves bonded to the inner edge of both ends of the filter element 18. The protective sleeves 1003 are also fixedly sleeved on the surface of the water filter pipe 15.

[0022] The outer casing 10 has a concentrated water discharge port 12 fixed through it on the side near the sealing cover 11. The concentrated water discharge port 12 is a pipe joint that communicates with the inside of the outer casing 10 and is used to discharge concentrated water. A solenoid valve 13 is provided on the concentrated water discharge port 12. The valve core of the solenoid valve 13 is embedded inside the concentrated water discharge port 12, and the opening and closing of the concentrated water discharge port 12 is controlled by the solenoid valve 13.

[0023] The buffer anti-water-crossing component 2 includes a sleeve 20, which is a cylindrical sleeve fitted onto the outer wall of the filter pipe 15. Several support rods 21 are fixedly distributed on the outer wall of the sleeve 20. The support rods 21 are radially extending rods that are evenly distributed along the circumference of the sleeve 20. An annular frame 22 is fixedly fitted onto the outer end of the support rod 21. The annular frame 22 is a circular frame whose outer surface is slidably fitted onto the inner wall of the outer shell 10.

[0024] Among them, several water-blocking buffer plates 23 are fixedly distributed on one side of the inner ring wall of the annular frame 22, and several water-blocking buffer plates 24 are fixedly distributed on the other side of the inner ring wall of the annular frame 22. The water-blocking buffer plates 23 and 24 are staggered and arranged alternately in the axial direction of the annular frame 22. When high-pressure water passes through continuously, it will not directly contact the filter element 18, but will reach the filter element 18 through a curved channel, avoiding damage to the edge of the filter element 18, thereby avoiding water leakage due to damage.

[0025] Among them, a connecting rod 25 is symmetrically fixed on one side of the annular frame 22. The connecting rod 25 is an axially extending connecting rod, and its end is provided with an external thread 26. A threaded sleeve 27 is installed on the surface of the external thread 26. The threaded sleeve 27 is a threaded moving structure. After it moves with the external thread 26, it can be connected to the connecting column 28, so that the annular frame 22 can be stably fixed on the water filter pipe 15.

[0026] Among them, the surface of the filter pipe 15 is also symmetrically fixed with connecting posts 28. The connecting posts 28 are columns that protrude radially from the surface of the filter pipe 15. The surface of the connecting posts 28 is fixedly fitted with a limiting ring 29. The limiting ring 29 is an annular retaining ring. The limiting ring 29 can limit the position of the threaded sleeve 27. The surface of the limiting ring 29 is fitted with the end face of the threaded sleeve 27. The surface of the connecting posts 28 is also provided with an external thread 210. The external thread 210 and the threaded sleeve 27 are threadedly installed with each other. That is, the threaded sleeve 27 is simultaneously threaded with the external thread 26 of the connecting rod 25 and the external thread 210 of the connecting posts 28, thus fixing the annular frame 22 to the filter pipe 15.

[0027] The water inlet buffer assembly 3 includes a water inlet interface 30, which is a pipe connector fixedly installed at one end of the housing 10 and communicates with the inside of the housing 10. A buffer sleeve 31 is fixedly installed inside the water inlet interface 30 by a bracket. The buffer sleeve 31 is a cylindrical sleeve fixed at the center of the water inlet interface 30. A buffer rod 32 is slidably sleeved inside the buffer sleeve 31. The buffer rod 32 is a cylindrical rod that can slide axially inside the buffer sleeve 31. A high-pressure water impact protection plate 33 is fixedly installed at one end of the buffer rod 32. The high-pressure water impact protection plate 33 is a circular plate with a diameter slightly larger than the inner diameter of the water inlet interface 30. One side of the high-pressure water impact protection plate 33 covers one end of the inner side of the water inlet interface 30, which can buffer and protect against the impact of instantaneous high-pressure water during start-up and shutdown.

[0028] Among them, the end of the buffer rod 32 away from the anti-high pressure water impact plate 33 is fixedly installed with an end head 34, which is a circular baffle. A buffer spring 35 is wound around the surface of the buffer rod 32. The buffer spring 35 is a compression spring, and its two ends are fixedly installed with the surface of the end head 34 and the end face of the buffer sleeve 31, respectively. The buffer spring 35 can ensure the stable displacement and reset of the anti-high pressure water impact plate 33.

[0029] The anti-deviation component 4 includes a frame 40, which is a circular frame. Its outer surface is slidably fitted with the inner wall of the outer shell 10. Several abutment rods 41 are fixedly distributed on the inner ring wall of the frame 40. The abutment rods 41 have an L-shaped structure, that is, the abutment rods 41 are bent at right angles. One end of the abutment rod is fixed to the inner ring wall of the frame 40, and the other end extends axially. Abutment block 42 is fixedly installed at the end of the abutment rod 41 to prevent the filter element 18 from being deviated by water impact. The side of the abutment block 42 away from the abutment rod 41 is tightly attached to the end face of the filter element 18. Through the distribution of the abutment blocks 42, the filter element 18 can be protected against deviation.

[0030] Among them, a number of positioning sleeves 43 are fixedly distributed on one side of the frame 40. The positioning sleeve 43 is a cylindrical sleeve, and a positioning pin 44 is slidably sleeved inside it. The positioning pin 44 can slide axially inside the positioning sleeve 43. A positioning spring 45 is wound around the surface of the positioning pin 44. The positioning spring 45 is a compression spring, and its two ends are fixedly installed to the end face of the positioning sleeve 43 and the surface of the positioning pin 44, respectively. A positioning groove 46 corresponding to the position of the positioning pin 44 is opened on the inner wall of the outer shell 10. The end of the positioning pin 44 away from the positioning spring 45 is slidably inserted into the inside of the positioning groove 46. The frame 40 is locked in a set position inside the outer shell 10 by the cooperation of the positioning pin 44 and the positioning groove 46.

[0031] Example 2 This embodiment provides an anti-cross-flow filtration device for large-scale water purifiers with a processing capacity of ≥10 tons / hour, which is installed in the first-stage high-pressure membrane housing of the multi-stage filtration section of the water purifier. In actual operation, the raw water is pressurized by the booster pump and enters the outer casing 10 through the inlet interface 30 of the inlet buffer assembly 3. When the system starts intermittently or the water pressure suddenly increases, the anti-high-pressure water impact plate 33 is pushed by the water pressure, causing the buffer rod 32 to slide inside the buffer sleeve 31, and simultaneously compressing the buffer spring 35. This allows the impact energy of the instantaneous high-pressure water to be elastically absorbed, preventing the high-pressure water flow from directly impacting the end face of the filter element 18, thereby preventing the end of the filter element from tearing or denting due to instantaneous impact. After passing through the buffer, the water enters the filter chamber and flows through the buffer anti-water-crossing component 2. Because the annular frame 22 has alternating, staggered water-blocking buffer plates 23 and 24, the water is forced to flow along a curved path, preventing direct vertical impact on the outer wall of the filter element 18. This is especially effective in the areas of the protective rings 1001 and protective sleeves 1003 at both ends of the filter element, preventing edge warping or inner ring dents and reducing the risk of water cross-flow due to localized damage. During the filtration process, the core sealing structure of the anti-water-crossing component 1 plays a crucial role: the filter element 18 is wrapped around the surface of the filter pipe 15, and the inner wall of the filter element is bonded and fixed to the annular groove 19 of the filter pipe 15 by a sealing ring 110. The micro springs 112 evenly distributed in the annular cavity 111 inside the sealing ring continuously provide radial elastic resistance. Even under long-term impact from high-pressure water flow, the sealing ring can maintain a tight fit with the inner wall of the filter element, preventing unfiltered raw water from directly entering the filter hole 17 through the gap between the filter element and the filter pipe. This ensures that all water flow must pass through the filter element medium before entering the filter hole 17 and flowing into the filter pipe 15 for discharge. Meanwhile, the frame 40 of the anti-displacement component 4 is fitted onto the inner wall of the housing 10, and the end of the L-shaped abutment rod 41 on it has an abutment block 42 that is in close contact with the end face of the filter element 18. Under the action of the positioning spring 45, the positioning pin 44 is engaged into the positioning groove 46 on the inner wall of the housing, locking the frame 40 in the set position. This prevents the filter element 18 from shifting or slipping in the axial or circumferential direction during long-term operation, ensuring that the filter element always maintains correct alignment with the pipe seat 14 and the sealing ring 16, and avoiding local sealing failure and water leakage caused by displacement. The concentrated water is discharged periodically through the concentrated water discharge port 12 and its solenoid valve 13, and the purified water is led out through the filter pipe 15. Through the cooperation of the above-mentioned multiple components, the sealing integrity, impact resistance and positional stability of the filter structure of the large water purifier are improved under the conditions of frequent start-stop, water pressure fluctuation and long-term continuous operation. The water leakage failure rate is reduced to less than 1 / 5 of the original structure, and the filter element replacement cycle is extended by more than 30%.

[0032] The present invention is used as follows: When in use, a sealing ring 110 is embedded in the annular groove 19 on both sides of the filter pipe 15. The outer wall of the sealing ring 110 is bonded and fixed to the inner wall of the filter element 18, forming a sealing interface between the filter element 18 and the filter pipe 15. Micro springs 112 are evenly distributed in the annular cavity 111 inside the sealing ring 110. When the water pressure increases, the micro springs 112 are compressed and generate a reverse elastic force, pushing the outer wall of the sealing ring 110 to always be in close contact with the inner wall of the filter element 18, compensating for the permanent deformation of the sealing material during long-term use, and maintaining a stable sealing contact pressure. The outer ring of the filter element 18 is bonded with a protective ring 1001 and the inner ring is bonded with a protective sleeve 1003, respectively preventing the edge of the filter element 18 from warping and denting due to water flow impact. Combined with the annular tightening effect of the pressure ring 1002, the end structure of the filter element 18 is ensured to be intact, and the formation of a water leakage path is avoided. The annular frame 22 is sleeved onto the outer wall of the filter pipe 15 through the sleeve 20. Water-blocking buffer plate 1 23 and water-blocking buffer plate 24 are distributed on both sides of its inner ring wall. The two are arranged alternately in the axial direction and are staggered to each other. After the high-pressure water flows in through the inlet end, it passes around the water-blocking buffer plate 1 23 and water-blocking buffer plate 24 in sequence in the area of ​​the annular frame 22, forming a curved flow path. After the water flow direction changes multiple times, the speed decreases and then it is evenly distributed to the surface of the filter element 18. This curved channel structure prevents the high-pressure water from directly impacting the weak edge area of ​​the filter element 18, avoiding the risk of water leakage caused by impact damage to the filter element 18. The threaded sleeve 27 is threaded with the external thread 1 26 of the connecting rod 25 and the external thread 210 of the connecting column 28 to stably fix the annular frame 22 and the filter pipe 15. Inside the water inlet 30, a buffer rod 32 is slidably sleeved within a buffer sleeve 31 fixed by a bracket. A high-pressure water impact protection plate 33 fixed at one end of the buffer rod 32 covers the inner port of the water inlet 30. When the water purifier is started intermittently, instantaneous high-pressure water impacts the surface of the high-pressure water impact protection plate 33, pushing the buffer rod 32 to slide axially along the buffer sleeve 31. At the same time, the buffer spring 35 is compressed, converting the instantaneous high-pressure impact energy into spring elastic potential energy for storage. The two ends of the buffer spring 35 are fixed to the end head 34 and the end face of the buffer sleeve 31, respectively. After the impact, the spring releases its elastic potential energy to push the high-pressure water impact protection plate 33 to reset, preparing for the next buffering. This buffering mechanism effectively avoids instantaneous high-pressure water directly impacting the overall structure of the filter element 18, preventing the filter element 18 from being damaged by water hammer effect. The frame 40 is a circular frame that slides into the inner wall of the outer shell 10. Several L-shaped abutting rods 41 distributed on the inner wall of the frame 40 are fixedly installed at their ends with abutting blocks 42. One side of the abutting block 42 is in close contact with the end face of the filter element 18. The positioning pin 44, which is slidably connected in the positioning sleeve 43 on one side of the frame 40, automatically extends under the elastic force of the positioning spring 45 and inserts into the corresponding positioning groove 46 on the inner wall of the outer shell 10, locking the frame 40 in the set position inside the outer shell 10. The distribution of the abutting blocks 42 forms an axial limit on both ends of the filter element 18, preventing the filter element 18 from axially shifting or slipping under the long-term push of water flow, ensuring that the filter element 18 always maintains the correct alignment with the filter hole 17 on the filter pipe 15, and maintaining a stable filtration effect. A concentrated water discharge port 12, fixed through the outer casing 10 near the sealing cover 11, communicates with the interior of the outer casing 10 and is used to discharge concentrated water generated during the filtration process. A solenoid valve 13 is installed on the concentrated water discharge port 12, with its valve core embedded inside the port. The solenoid valve 13 controls the opening and closing of the concentrated water discharge port 12. When the water purifier is working normally, the solenoid valve 13 is closed, and concentrated water accumulates inside the outer casing 10. When it is necessary to discharge concentrated water or perform system flushing, the control system opens the solenoid valve 13, and the concentrated water is discharged through the concentrated water discharge port 12. The automatic control of the solenoid valve 13 realizes the periodic discharge of concentrated water. At the same time, the pressure inside the outer casing 10 can be adjusted by discharging concentrated water to avoid excessive pressure causing additional burden on the filter element 18 and extend the service life of the filter element 18.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A water purifier anti-water-crossing filtration device, comprising a filtration anti-water-crossing component (1), characterized in that: The filter anti-water-crossing component (1) is provided with a buffer anti-water-crossing component (2) on one side inside, a water inlet buffer component (3) is provided at one end of the filter anti-water-crossing component (1), and an anti-deviation component (4) is provided on the other side inside the filter anti-water-crossing component (1). The filter and anti-water-crossing assembly (1) includes a housing (10), with a sealing cap (11) fixedly covering the end of the housing (10). A pipe seat (14) is fixedly installed on one end of the inner wall of the housing (10), and a filter pipe (15) is inserted into the pipe seat (14). A sealing ring (16) is fixedly fixed through the center of the sealing cap (11), and the sealing ring (16) is sealed through the filter pipe (15). The surface of the filter pipe (15) is provided with several filter holes (17). The surface of the filter tube (15) is covered with a filter element (18), which covers the outside of the filter holes (17). Multiple annular grooves (19) are provided on both sides of the filter tube (15). A sealing ring (110) is filled inside the annular groove (19). The sealing ring (110) is wrapped and bonded to the inside of the filter element (18). An annular cavity (111) is provided inside the sealing ring (110). Several miniature springs (112) for auxiliary compaction and deformation resistance are fixed inside the annular cavity (111). The filter element (18) has protective rings (1001) bonded to both sides along the outer edge for preventing impact and warping. A pressure ring (1002) for circumferential tightening is fixedly sleeved on the outer wall of the filter element (18), and the pressure ring (1002) is set close to the protective ring (1001). The filter element (18) has protective sleeves (1003) bonded to both sides along the inner edge for preventing impact and denting. The protective sleeves (1003) are also fixedly sleeved on the surface of the water filter pipe (15).

2. The anti-water-crossing filtration device for a water purifier according to claim 1, characterized in that: A concentrated water discharge port (12) is fixed through the side of the outer shell (10) near the sealing cover (11). A solenoid valve (13) is provided on the concentrated water discharge port (12), and the valve core of the solenoid valve (13) is embedded inside the concentrated water discharge port (12).

3. The anti-water-crossing filtration device for a water purifier according to claim 1, characterized in that: The buffer anti-water-crossing component (2) includes a sleeve (20), which is fitted onto the outer wall of the filter pipe (15). Several support rods (21) are fixedly distributed on the outer ring wall of the sleeve (20). An annular frame (22) is fixedly fitted onto the outer end of the support rod (21). The outer surface of the annular frame (22) is slidably fitted onto the inner wall of the outer shell (10).

4. The anti-water-crossing filtration device for a water purifier according to claim 3, characterized in that: A number of water-blocking buffer plates (23) are fixedly distributed on one side of the inner ring wall of the ring frame (22), and a number of water-blocking buffer plates (24) are fixedly distributed on the other side of the inner ring wall of the ring frame (22). The water-blocking buffer plates (23) and the water-blocking buffer plates (24) are staggered and arranged.

5. The anti-water-crossing filtration device for a water purifier according to claim 4, characterized in that: A connecting rod (25) is symmetrically fixed on one side of the annular frame (22). The end of the connecting rod (25) is provided with an external thread (26), and a threaded sleeve (27) is installed on the surface thread of the external thread (26).

6. The anti-water-crossing filtration device for a water purifier according to claim 5, characterized in that: The surface of the filter pipe (15) is also symmetrically fixed with connecting columns (28), and a limiting ring (29) is fixedly sleeved on the surface of the connecting column (28). The surface of the limiting ring (29) is fitted with the end face of the threaded sleeve (27). The surface of the connecting column (28) is also provided with an external thread (210), and the external thread (210) and the threaded sleeve (27) are threaded together.

7. The anti-water-crossing filtration device for a water purifier according to claim 1, characterized in that: The water inlet buffer assembly (3) includes a water inlet interface (30). A buffer sleeve (31) is fixedly installed inside the water inlet interface (30) by a bracket. A buffer rod (32) is slidably connected inside the buffer sleeve (31). A high-pressure water impact plate (33) is fixedly installed at one end of the buffer rod (32). One side of the high-pressure water impact plate (33) covers one end of the inner side of the water inlet interface (30).

8. The anti-water-crossing filtration device for a water purifier according to claim 7, characterized in that: The buffer rod (32) has an end head (34) fixedly installed at the end away from the anti-high pressure water impact plate (33). A buffer spring (35) is wound around the surface of the buffer rod (32). The two ends of the buffer spring (35) are fixedly installed to the surface of the end head (34) and the end face of the buffer sleeve (31), respectively.

9. The anti-water-crossing filtration device for a water purifier according to claim 1, characterized in that: The anti-deviation component (4) includes a frame (40), the outer surface of the frame (40) is slidably sleeved with the inner wall of the outer shell (10), and a number of abutting rods (41) are fixedly distributed on the inner ring wall of the frame (40). The abutting rods (41) are L-shaped structures, and the ends of the abutting rods (41) are fixedly installed with abutting blocks (42) for preventing the filter element (18) from being deviated by water impact. The side of the abutting block (42) away from the abutting rods (41) is tightly attached to the end face of the filter element (18).

10. A water purifier anti-cross-flow filtration device according to claim 9, characterized in that: A plurality of positioning sleeves (43) are fixedly distributed on one side of the frame (40). A positioning pin (44) is slidably sleeved inside the positioning sleeve (43). A positioning spring (45) is wound around the surface of the positioning pin (44). The two ends of the positioning spring (45) are fixedly installed to the end face of the positioning sleeve (43) and the surface of the positioning pin (44) respectively. A positioning groove (46) corresponding to the position of the positioning pin (44) is opened on the inner wall of the outer shell (10). The end of the positioning pin (44) away from the positioning spring (45) is slidably inserted into the inside of the positioning groove (46).

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