Central water purifier

Abstract

The invention relates to the field of water purification equipment, in particular to a central water purifier which comprises a case, a filtering tank, a water flow inlet and outlet assembly and a material changing mechanism. Wherein a plurality of filtering cavities and a central pipe are arranged in the filtering tank, and water flow distribution is realized through a filter and a water distributor; the water flow inlet and outlet assembly can accurately control the on-off state of the water inlet pipe and the water outlet pipe; the material changing mechanism comprises a feeding pipe, a discharging pipe, a discharging guide plate and a driving unit, and the filter material changing operation can be efficiently completed. In addition, the optimally designed discharging guide plate structure is matched with the bearing ring plate and other components, so that the stability and reliability of the device are further improved. According to the central water purifier, the convenient and efficient filter material replacement function is achieved, meanwhile, the good sealing performance and the good purification effect are guaranteed, and the maintenance convenience and the overall performance of the central water purifier are remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of water treatment equipment, and in particular to a central water purifier. Background Art

[0002] With the acceleration of industrialization and the intensification of environmental pollution, natural water sources have been polluted to varying degrees, including but not limited to heavy metals, pesticide residues, bacteria and viruses, which pose a serious threat to human health. Therefore, more effective water treatment technologies are needed, such as reverse osmosis, ultrafiltration, activated carbon adsorption, etc. These technologies are gradually applied to household and commercial water purification equipment to meet people's demand for high-quality drinking water.

[0003] The typical structure of a water purifier mainly includes a filter, a main filter unit and a post-activated carbon filter. The filter is used to initially remove large particles of impurities, such as sand, rust, etc. The main filter unit contains one or more filter chambers, such as PP cotton filter, activated carbon filter, ceramic filter, RO reverse osmosis membrane or UF ultrafiltration membrane, etc., to remove finer particles, organic matter, heavy metal ions, bacteria and viruses, etc. The post-activated carbon filter is used to further improve the taste and odor of water to optimize water quality.

[0004] The filter material of the water purifier will gradually accumulate impurities during use, resulting in a decrease in filtration efficiency. If it is not replaced or cleaned in time, it will not only affect the water quality, but may also cause damage to the equipment. The design of some water purifiers is more complicated, and replacing the filter element requires certain technical knowledge or tools, and the water purifier chassis must be disassembled for replacement. Incorrect installation may also cause water leakage or other malfunctions. Summary of the invention

[0005] In order to improve the convenience of filter element replacement, the present application provides a central water purifier.

[0006] The present application provides a central water purifier, which adopts the following technical solution: A central water purifier, comprising: Chassis; A filter tank is arranged in the chassis, a plurality of filter chambers are arranged in the filter tank, a central tube is arranged in the filter tank, a filter is sleeved on one end of the central tube, a water distributor is connected to the other end of the central tube, and the filter is located above the water distributor; A water inlet and outlet assembly, comprising an inlet pipe, an outlet pipe and a flow control unit, wherein the inlet pipe is connected to the filter, and the outlet pipe is connected to the central pipe; the flow control unit is used to control the connection and disconnection between the inlet pipe and the filter, and also to control the connection and disconnection between the outlet pipe and the central pipe; The material changing mechanism comprises a feed pipe, a discharge pipe, a discharge guide plate and a driving unit, wherein the discharge guide plate is arranged in each filter cavity, and each filter cavity is connected with the feed pipe and the discharge pipe, and one end of the feed pipe is located outside the chassis, and one end of the discharge pipe is also located outside the chassis, and both the feed pipe and the discharge pipe can be opened and closed; the discharge guide plate is sleeved outside the central tube, and the driving unit is used to drive the discharge guide plate to rotate.

[0007] By adopting the above technical solution, multiple filter chambers are set in the filter tank to cooperate with the central tube, filter and water distributor, so as to realize the effective distribution and treatment of water flow in different filtering stages. The water inlet and outlet components ensure the normal operation of the entire system by accurately controlling the water inlet pipe and the water outlet pipe. The material changing mechanism can realize the replacement of filter material without disassembling the chassis, which greatly reduces the difficulty of filter material replacement. Specifically, the feed pipe and the discharge pipe extend to the outside of the chassis respectively, which is convenient for adding new filter material or discharging old filter material from the outside. At the same time, the discharge guide plate rotates under the action of the drive unit, effectively guiding the flow direction of the filter material, ensuring that the used filter material can be discharged smoothly along the discharge pipe, thereby improving the convenience and operability of filter material replacement.

[0008] Optionally, the filter chamber includes a filter chamber and an activity chamber arranged in a vertical direction, the feed pipe is connected to the filter chamber, and the discharge pipe is connected to the activity chamber; The discharge guide plate is located between the filter chamber and the activity chamber, and includes two semi-ring guide plates arranged opposite to each other, and the two semi-ring guide plates are rotatably connected; The driving unit is located in the activity chamber, and one semi-ring guide plate is equipped with at least one driving unit, and the driving unit is used to drive the semi-ring guide plate to rotate.

[0009] By adopting the above technical solution, the filter chamber and the activity chamber are functionally partitioned to reduce the obstruction caused by the filter material in the filter chamber to the rotation of the semi-ring guide plate. When discharge is required, the drive unit is started to rotate the semi-ring guide plate to an inclined state in the direction close to the discharge pipe, which can accurately control the guided flow of the filter material in the filter chamber, ensuring a smooth and efficient material replacement process, thereby extending the service life of the equipment and improving maintenance convenience. When the used filter material is discharged, the drive unit acts on the semi-ring guide plate to rotate the semi-ring guide plate back to the initial state.

[0010] Optionally, a receiving ring plate is further provided in the activity chamber, and the receiving ring plate is used to abut against the semi-ring guide plate; the receiving ring plate gradually shrinks towards the direction approaching the discharge guide plate, and the discharge pipe is located on one side of the receiving ring plate.

[0011] By adopting the above technical solution, the setting of the receiving ring plate can effectively support the semi-ring guide plate and limit the rotation range of the supporting ring plate on the one hand; on the other hand, the tapered setting of the receiving ring plate allows the receiving ring plate and the semi-ring guide plate to jointly guide the discharge of the filter material, so that the filter material can be smoothly discharged into the discharge pipe; after the discharge action, there should be no filter material left in the activity chamber to interfere with the next action of the semi-ring guide plate. At the same time, the position layout of the discharge pipe on one side of the receiving ring plate further optimizes the internal space utilization and improves the filter material discharge efficiency.

[0012] Optionally, a buffer pad strip is provided at the bottom of the semi-ring guide plate, and a receiving groove for accommodating the buffer pad strip is provided on the receiving ring plate.

[0013] By adopting the above technical solution, the buffer strips at the bottom of the semi-ring guide plate can effectively reduce the rigid contact between the semi-ring guide plate and the receiving ring plate, thereby reducing wear and extending the service life of the components. At the same time, the receiving groove design on the receiving ring plate allows the buffer strips to maintain a stable position during operation, avoiding displacement due to vibration or impact, and ensuring that the material changing mechanism operates smoothly and reliably.

[0014] Optionally, a flexible connecting ring is fixed to the inner ring of the discharge guide plate, and the flexible connecting ring is sleeved and fixedly connected to the outside of the central tube.

[0015] By adopting the above technical solution, the setting of the flexible connecting ring can ensure a stable connection between the discharge guide plate and the center tube. At the same time, due to the characteristics of the flexible connecting ring, it can effectively reduce mechanical wear during the rotation of the discharge guide plate, extend the service life of the device, and reduce the interference of the center tube on the semi-ring guide plate during the rotation of the semi-ring guide plate.

[0016] Optionally, one end of the feed pipe located in the filter tank is connected to a distribution disk, the distribution disk is located on the top of the filter chamber, and a plurality of distribution holes are opened on the distribution disk.

[0017] By adopting the above technical solution, the setting of the distribution plate can make the filter media entering the filter tank evenly distributed on the top of the filter media chamber, avoiding the problem of uneven filtration efficiency caused by concentrated accumulation of filter media. The design of several distribution holes further improves the uniformity of filter media dispersion, ensuring that the filter media filling in each filter chamber is more reasonable, thereby improving the overall water purification effect and extending the service life of the filter media.

[0018] Optionally, the pipe section of the feed pipe located in the filter tank is arranged to be tilted in the opposite direction of the distribution plate.

[0019] By adopting the above technical solution, the pipe section of the feed pipe located in the filter tank is tilted in the opposite direction of the distribution plate, which can increase the movement speed of the filtered material when entering the filter chamber.

[0020] Optionally, a material storage trough is provided on the chassis, and an opening and closing cover is rotatably provided at the opening of the material storage trough.

[0021] By adopting the above technical solution, the central water purifier is equipped with a storage tank and a rotatable opening and closing cover at the opening of the storage tank. This design can conveniently store spare filter materials or other items required for maintenance, and the opening and closing cover ensures that the materials in the storage tank will not be damp or contaminated by the external environment.

[0022] Optionally, a sewage discharge interface is provided on the chassis, and the sewage discharge interface is connected to the central pipe.

[0023] By adopting the above technical solution, sewage and impurities can be effectively discharged during forward flushing and back flushing of the filter tank. The design of the sewage discharge interface connected to the central tube ensures that the sewage during the flushing process can be discharged smoothly from the sewage discharge interface, avoiding sewage retention in the system to cause secondary pollution, thereby improving the cleaning efficiency and service life of the entire water purifier.

[0024] Optionally, a group of outer side walls in the chassis that are separated from each other are provided with handle grooves.

[0025] By adopting the above technical solution, the provision of a handle groove can facilitate users to carry and move the equipment, especially when the equipment needs to be maintained, relocated or transported, which significantly improves the convenience of operation. At the same time, the handle grooves are located on opposite outer walls to ensure uniform force, avoid tipping or damage of the equipment due to unilateral force, and thus improve the safety and stability of use.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. The design of multiple filter chambers in the filter tank in this application, combined with the central tube, filter and water distributor, can effectively grade and process impurities of different particle sizes and types, thereby improving the overall filtration efficiency and water purification capacity; 2. The flow control unit in this application accurately controls the water flow path to ensure that no leakage or cross contamination occurs during the filter material replacement process, while ensuring a stable water supply under normal working conditions; 3. In this application, by providing an openable and closable feed pipe and discharge pipe and a discharge guide plate controlled by a drive unit, convenient replacement of filter media is achieved without disassembling the chassis or filter tank, which greatly improves the simplicity and safety of filter element maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the central water purifier of Example 1 of the present application; Figure 2 is a schematic cross-sectional structural diagram of a central water purifier according to Embodiment 1 of the present application; Figure 3 It is a schematic diagram of the internal structure of a central water purifier showing the water flow in and out components in Example 1 of the present application; Figure 4 It is a schematic diagram of the overall structure of the central water purifier of Example 2 of the present application; Figure 5 is a schematic cross-sectional structural diagram of the filter tank in Example 2 of the present application; Figure 6 yes Figure 5 A schematic diagram of the local enlarged structure at point A in the middle; Explanation of the reference numerals in the accompanying drawings: 1. Chassis; 11. Storage trough; 12. Opening and closing cover; 121. Magnetic protrusion; 13. Drain interface; 14. Handle slot; 15. Connecting slot; 16. Adsorption column; 17. Display unit; 18. Control unit; 19. Support bracket; 2. Filter tank; 21. Filter chamber; 211. Filter chamber; 212. Activity chamber; 22. Center tube; 23. Filter; 24. Water distributor; 25. Partition mesh plate; 3. Water inlet and outlet assembly; 31. Water inlet pipe; 32. Water outlet pipe; 33. Flow control unit; 4. Material changing mechanism; 41. Feed pipe; 42. Discharge pipe; 43. Discharge guide plate; 431. Semi-ring guide plate; 432. Buffer pad strip; 433. Flexible connecting ring; 44. Drive unit; 5. Receiving ring plate; 51. Receiving slot; 6. Distribution tray; 61. Distribution hole. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-6 This application is described in further detail.

[0029] Embodiment 1: Embodiment 1 of the present application provides a central water purifier.

[0030] refer to Figure 1 and Figure 2 The central water purifier includes a chassis 1, a filter tank 2, and a water inlet and outlet assembly 3. A material storage tank 11 is integrally formed on the top of the chassis 1, and the opening of the material storage tank 11 is covered with an opening and closing cover 12, one end of which is hinged on the side wall of the chassis 1; the material storage tank 11 can be opened or closed by rotating the opening and closing cover 12. In order to improve the stability of the opening and closing cover 12 when it is in a closed state, a magnetic protrusion 121 is also fixed to one end of the opening and closing cover 12. A connecting groove 15 for accommodating the magnetic protrusion 121 is provided on the chassis 1, and a matching adsorption column 16 is also fixed in the connecting groove 15. When the opening and closing cover 12 is in a closed state, the magnetic protrusion 121 is located in the connecting groove 15, and the matching adsorption column 16 is snapped into the magnetic protrusion 121, and the magnetic protrusion 121 and the matching adsorption column 16 are mutually attracted. In this embodiment, the magnetic attraction protrusion 121 is made of a magnet, and the adsorption column 16 is made of a ferromagnetic material.

[0031] refer to Figure 1 A display unit 17 and a control unit 18 are also fixed to the chassis 1. The display unit 17 is specifically configured as an LED display screen, and the control unit 18 includes touch buttons integrated on the LED display screen. Handle grooves 14 are symmetrically provided on the outer walls of both sides of the chassis 1, and the inside of the handle grooves 14 is rounded to facilitate carrying the chassis 1.

[0032] refer to Figure 2 A support bracket 19 is fixed in the chassis 1, and one side of the filter tank 2 is snapped into the support bracket 19 to realize the vertical installation of the filter tank 2 in the chassis 1. The inner part of the filter tank 2 includes a plurality of filter chambers 21. In the present embodiment, two filter chambers 21 are provided along the vertical direction. When in use, activated carbon and quartz sand are filled in the two filter chambers 21 in sequence. The quartz sand can effectively filter out particulate impurities such as mud, rust, and colloids in the water, while preventing the loss of activated carbon; the activated carbon can effectively remove organic pollutants and chemical pollutants such as residual chlorine, chloroform, and carbon tetrachloride. In the present embodiment, no partition is provided between the two filter chambers 21.

[0033] refer to Figure 2 and Figure 3 , a central tube 22 is provided at the center of the filter tank 2, a filter 23 is sleeved and fixed on the upper end of the central tube 22, and the lower end of the central tube 22 is connected to the water distributor 24. In this embodiment, the filter 23 is composed of a filter shell whose inner wall is covered with a filter screen, which can also prevent the loss of granular activated carbon and quartz sand. The water inlet pipe 31 is connected to the filter 23, and the water outlet pipe 32 is connected to the central tube 22. The flow control unit 33 is a solenoid valve group, which controls the connection and disconnection of the water inlet pipe 31 and the filter 23, and the connection and disconnection of the water outlet pipe 32 and the central tube 22 respectively. Under normal filtering state, water flows into the filter tank 2 through the water inlet pipe 31, passes through the filter 23 and multiple filter chambers 21 in turn, is filtered multiple times, enters the water distributor 24, and then flows out from the water outlet pipe 32 through the central tube 22.

[0034] refer to Figure 2 and Figure 3 The outer wall of the chassis 1 is also connected with a sewage interface 13, one end of which is connected to the central pipe 22 through a pipeline. When flushing the filter tank 2, the sewage interface 13 can be connected to the sewage pipe to achieve sewage discharge.

[0035] The implementation principle of a central water purifier in an embodiment of the present application is as follows: water flows in from a water inlet pipe 31 , passes through a filter 23 and enters each filter chamber 21 in turn, the activated carbon and quartz sand in the filter chamber 211 filter pollutants step by step, and the purified water is discharged to the outlet pipe 32 and then output.

[0036] Embodiment 2: Embodiment 2 of the present application provides a central water purifier.

[0037] refer to Figure 4 and Figure 5 , the difference between Example 2 of the present application and Example 1 is that: in this embodiment, a material changing mechanism 4 is additionally provided, and each filter cavity 21 is equipped with a material changing mechanism 4. The material changing mechanism 4 includes a feed pipe 41, a discharge pipe 42, a discharge guide plate 43 and a drive unit 44. A partition screen 25 is fixed at the bottom of each filter cavity 21 to separate each filter cavity 21 and ensure the stability of the filter material in the filter cavity 21. The discharge guide plate 43 is located in the filter cavity 21, and separates the filter cavity 21 into a filter chamber 211 and an activity chamber 212. One end of the feed pipe 41 is located in the chassis 1, and is penetrated into the filter chamber 211 corresponding to the filter cavity 21, and the feed pipe 41 is arranged near the top of the filter chamber 211. A distribution plate 6 is also fixed in the filter chamber 211, and a plurality of distribution holes 61 are opened on the distribution plate 6; the pipe section of the feed pipe 41 located in the filter cavity 21 is located above the distribution plate 6 and is inclined toward the distribution plate 6. The discharge pipe 42 is communicated with the active chamber 212 of the corresponding filter cavity 21 . One end of the feed pipe 41 and the discharge pipe 42 both extend to the outside of the chassis 1 and are opened and closed by an electric control valve.

[0038] refer to Figure 5 and Figure 6 The discharge guide plate 43 is set to be annular, and a flexible connecting ring 433 is fixed to the inner ring of the discharge guide plate 43, and the flexible connecting ring 433 is sleeved on the outside of the central tube 22. The discharge guide plate 43 is composed of two opposite semi-ring guide plates 431, and the two semi-ring guide plates 431 are rotatably connected by a hinge. A buffer pad strip 432 is fixed to the bottom of the semi-ring guide plate 431. In this embodiment, the buffer pad strip 432 is made of silica gel. The semi-ring guide plate 431 is made of a filter plate, and the mesh diameter on the semi-ring guide plate 431 is determined by the size of the filter material in the filter material chamber 211, so that the semi-ring guide plate 431 is only for water flow to pass through, and the filter material cannot pass through the semi-ring guide plate 431.

[0039] refer to Figure 5 and Figure 6The driving unit 44 is an electric push rod, which is installed in the activity chamber 212, and the bottom of the electric push rod is fixedly connected to the partition mesh plate 25; each semi-ring guide plate 431 is connected to an electric push rod, and the telescopic rod in the electric push rod is against the semi-ring guide plate 431. By contracting the electric push rod, the semi-ring guide plate 431 can be rotated toward the discharge pipe 42 under the action of its own gravity and the gravity of the filter material, providing guidance for the discharge of the filter material in the filter cavity 21. A receiving ring plate 5 is also provided in each activity chamber 212, and the receiving ring plate 5 is fixedly connected to the inner wall of the activity chamber 212, and the receiving ring plate 5 gradually shrinks toward the discharge guide plate 43. A receiving groove 51 is provided on the side wall of the receiving ring plate 5, and two receiving grooves 51 are provided on each receiving ring plate 5, and the receiving grooves 51 are provided in a one-to-one correspondence with the buffer pad strip 432. When the semi-ring guide plate 431 rotates toward the direction close to the discharge pipe 42, the buffer pad strip 432 can move into the receiving groove 51 to limit the rotation of the semi-ring guide plate 431. In this embodiment, the discharge pipe 42 is located on one side of the receiving ring plate 5, close to the receiving ring plate 5, and one active chamber 212 is connected to two discharge pipes 42.

[0040] In other embodiments, one end of the electric push rod may be hinged to the inner bottom wall of the activity chamber 212 , and the other end may be hinged to the semi-ring guide plate 431 .

[0041] The implementation principle of a central water purifier in Example 2 of the present application is as follows: when replacing the filter material, the flow control unit 33 closes the water inlet pipe 31 and the water outlet pipe 32 to cut off the water flow. The valve of the discharge pipe 42 is opened, and the electric push rod is retracted, so that the semi-ring guide plate 431 rotates to an inclined state in the direction close to the discharge pipe 42 under the gravity of itself and the filter material, and the old filter material in the filter chamber 211 slides into the discharge pipe 42 along the semi-ring guide plate 431 and the receiving ring plate 5 and is discharged. When the old filter material is discharged, each electric push rod is extended to the initial state to drive the semi-ring guide plate 431 to rotate back to the horizontal state; then the discharge pipe 42 is closed, and the valve of the feed pipe 41 is opened. The new filter material is accelerated to fall through the inclined feed pipe 41, and is evenly filled into the filter chamber 211 through the distribution plate 6 to complete the material replacement. This embodiment uses a modular material replacement mechanism 4 to achieve the replacement of filter material without disassembling the machine.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A central water purifier, characterized in that: include: Chassis (1); A filter tank (2) is arranged in the chassis (1), a plurality of filter chambers (21) are arranged in the filter tank (2), a central tube (22) is arranged in the filter tank (2), a filter (23) is sleeved on one end of the central tube (22), the other end of the central tube (22) is connected to a water distributor (24), and the filter (23) is located above the water distributor (24); A water inlet and outlet assembly (3), comprising a water inlet pipe (31), a water outlet pipe (32) and a flow control unit (33), wherein the water inlet pipe (31) is connected to the filter (23), and the water outlet pipe (32) is connected to the central pipe (22); the flow control unit (33) is used to control the connection and disconnection between the water inlet pipe (31) and the filter (23), and is also used to control the connection and disconnection between the water outlet pipe (32) and the central pipe (22); The material changing mechanism (4) comprises a feed pipe (41), a discharge pipe (42), a discharge guide plate (43) and a driving unit (44); each filter cavity (21) is provided with the discharge guide plate (43); each filter cavity (21) is connected with the feed pipe (41) and the discharge pipe (42); one end of the feed pipe (41) is located outside the chassis (1); one end of the discharge pipe (42) is also located outside the chassis (1); both the feed pipe (41) and the discharge pipe (42) can be opened and closed; the discharge guide plate (43) is sleeved outside the central tube (22); and the driving unit (44) is used to drive the discharge guide plate (43) to rotate.

2. A central water purifier according to claim 1, characterized in that: The filter chamber (21) comprises a filter chamber (211) and an activity chamber (212) arranged in a vertical direction, the feed pipe (41) is connected to the filter chamber (211), and the discharge pipe (42) is connected to the activity chamber (212); The discharge guide plate (43) is located between the filter chamber (211) and the activity chamber (212), and comprises two semi-ring guide plates (431) arranged opposite to each other, wherein the two semi-ring guide plates (431) are rotatably connected; The driving unit (44) is located in the activity chamber (212), and a semi-ring guide plate (431) is equipped with at least one driving unit (44), and the driving unit (44) is used to drive the semi-ring guide plate (431) to rotate.

3. A central water purifier according to claim 2, characterized in that: A receiving ring plate (5) is also provided in the activity chamber (212), and the receiving ring plate (5) is used to abut against the semi-ring guide plate (431); the receiving ring plate (5) gradually shrinks in a direction approaching the discharge guide plate (43), and the discharge pipe (42) is located on one side of the receiving ring plate (5).

4. A central water purifier according to claim 3, characterized in that: A buffer pad strip (432) is provided at the bottom of the semi-ring guide plate (431), and a receiving groove (51) for receiving the buffer pad strip (432) is provided on the receiving ring plate (5).

5. A central water purifier according to claim 2, characterized in that: A flexible connection ring (433) is fixed to the inner ring of the discharge guide plate (43), and the flexible connection ring (433) is sleeved and fixedly connected to the outside of the central tube (22).

6. A central water purifier according to claim 2, characterized in that: One end of the feed pipe (41) located in the filter tank (2) is connected to a distribution plate (6), the distribution plate (6) is located at the top of the filter chamber (211), and a plurality of distribution holes (61) are formed on the distribution plate (6).

7. A central water purifier according to claim 6, characterized in that: The pipe section of the feed pipe (41) located in the filter tank (2) is arranged to be inclined in the opposite direction of the distribution plate (6).

8. A central water purifier according to claim 1, characterized in that: The chassis (1) is provided with a material storage trough (11), and an opening and closing cover plate (12) is rotatably provided at the opening of the material storage trough (11).

9. A central water purifier according to claim 1, characterized in that: The chassis (1) is provided with a sewage discharge interface (13), and the sewage discharge interface (13) is in communication with the central tube (22).

10. A central water purifier according to claim 1, characterized in that: A set of outer side walls in the case (1) that are separated from each other are each provided with a handle groove (14).

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