Water purification equipment with graded reverse osmosis function

By incorporating multiple treatment tanks and a flexible filter element replacement structure within the water purification equipment, the problem of clogging or damage to the concentrated water discharge pipe filter device is solved, enabling flexible filtration to meet different concentrated water usage needs.

CN224118892UActive Publication Date: 2026-04-14JILIN XINDING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In existing water purification equipment, the filter device in the concentrated water discharge pipe is prone to clogging or damage after a period of use, resulting in incomplete filtration and an inability to respond promptly to sudden situations involving the filter element.

Method used

A water purification device with a graded reverse osmosis function was designed. Multiple treatment boxes are set at one end of a multi-channel discharge pipe. The treatment boxes are equipped with filter elements of different properties. The filter elements can be flexibly replaced through a combination structure of screws, gears and fixing frames to ensure the filtration effect.

Benefits of technology

It allows for flexible replacement of filter elements, improves the filtration effect on concentrated water impurities, adapts to different usage needs, and avoids filter failure due to clogging or damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses water purification equipment with a grading reverse osmosis function, and relates to the technical field of water purification equipment. The water purification equipment with the grading reverse osmosis function comprises a sand filter tank, a carbon filter tank, a softening tank, an RO (Reverse Osmosis) filter tank and a bracket for mounting the sand filter tank, the carbon filter tank, the softening tank and the RO filter tank, and a blow-off pipe and a multi-way discharge pipe are fixedly arranged at the bottom of the bracket. According to the device, multiple groups of treatment boxes are arranged at one end of a multi-way discharge pipe, and filtering pieces with different properties are arranged in the multiple groups of treatment boxes, so that impurities carried by concentrated water can be correspondingly filtered according to the use requirements of the concentrated water, and two groups of fixing frames, two groups of screw rods and gears are arranged on the top surfaces of the treatment boxes; the positions of the two groups of filtering pieces in the treatment box can be flexibly replaced, so that the problem of filtering failure in the using process of the filtering pieces is effectively solved, and the flexibility degree is relatively high.
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Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, specifically a water purification device with a graded reverse osmosis function. Background Technology

[0002] In industrial reuse production and other fields, pure water is required. Existing systems use reverse osmosis equipment to purify raw water in stages. That is, the raw water enters the sand filter tank, carbon filter tank, softening tank and RO reverse osmosis filter tank in the reverse osmosis equipment for purification. The equipment connects multiple purification components in series or parallel to form different levels of treatment system, so that the water quality meets the required standards after multi-stage treatment.

[0003] During the purification process, RO reverse osmosis filter tanks produce concentrated water. After recycling and filtration, this concentrated water can be reused in industrial production or used as irrigation water. Therefore, a filtration device is installed at one end of the concentrated water discharge pipe. However, after a period of use, the filter elements in the filtration device may become clogged or even damaged, rendering the filtration device ineffective. Impurities in the recycled concentrated water are not completely filtered, and the device cannot respond promptly to unexpected situations that may occur during the use of the filter elements. To address the shortcomings of existing technologies, we propose a water purification device with a staged reverse osmosis function to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a water purification device with a graded reverse osmosis function. It solves the problem that a filter device is installed at one end of the concentrate discharge pipe, but the filter element in the filter device will become clogged or even damaged after a period of use, causing the filter device to be in a state of failure. As a result, impurities in the recovered concentrate are not completely filtered, and it is impossible to deal with sudden situations that occur during the use of the filter element in a timely manner.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water purification device with a staged reverse osmosis function, comprising a sand filter tank, a carbon filter tank, a softening tank, an RO reverse osmosis filter tank, and a support frame. A multi-port discharge pipe connected to the drain end of the RO reverse osmosis filter tank is fixedly installed at the bottom of the support frame. One end of the multi-port discharge pipe is equipped with a switching mechanism, which includes:

[0006] The treatment box is fixedly connected to one end of a multi-channel discharge pipe, and the interior of the treatment box is equipped with multiple sets of filter elements.

[0007] The first fixed frame and the second fixed frame are both fixedly installed on the top surface of the processing box. The top surfaces of the first fixed frame and the second fixed frame are respectively rotatably provided with a first screw and a second screw that are threadedly connected to a set of filter elements.

[0008] The gears are fixedly connected to one end of both the first screw and the second screw, and the two sets of gears mesh with each other.

[0009] A control screw is fixedly connected to the top surface of the first screw, and the outer wall of the control screw is threaded with a bolt for locking it.

[0010] Preferably, the top surface of the processing box is fixedly connected to a top cover for shielding the first and second fixing frames, and the top surface of the top cover is rotatably connected to a top cover.

[0011] Preferably, the top surface of the top cover is provided with a protective component, which is used to protect the connection position between the top cover and the control screw.

[0012] Preferably, the protective assembly includes a slot formed on the top surface of the top cover for positioning and engaging one end of the control screw, a protective cover fixedly mounted on the top surface of the top cover near the slot, and a locking screw rotatably disposed between two adjacent sets of protective covers.

[0013] Preferably, the outer walls of the first screw and the second screw are respectively threaded with a set of threaded plates, and the two sets of threaded plates are respectively fixedly connected to the top surface of a set of filter elements.

[0014] Preferably, one end of each of the two sets of threaded plates is limited to sliding on the outer wall of the first fixed frame and the second fixed frame, respectively.

[0015] Preferably, the inner wall of the processing box is fixedly connected with a positioning bracket for positioning and installing the filter element.

[0016] This utility model discloses a water purification device with a graded reverse osmosis function, which has the following beneficial effects: The water purification device with a graded reverse osmosis function has multiple treatment boxes installed at one end of a multi-channel discharge pipe. The multiple treatment boxes are equipped with filter elements of different properties, so that the impurities carried by the concentrated water can be filtered according to the needs of concentrated water use. In addition, the two sets of fixing brackets, two sets of screws and gears installed on the top surface of the treatment box can flexibly replace the positions of the two sets of filter elements inside the treatment box, so as to effectively deal with the filtration failure problem that occurs during the use of filter elements, and has a high degree of flexibility. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the processing box and top cover of this utility model;

[0020] Figure 3 This is a schematic diagram of the unfolded structure of the top cover of this utility model;

[0021] Figure 4 This is a schematic diagram of the transposition mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the connection structure between the processing box and the positioning card seat of this utility model;

[0023] Figure 6 This is a schematic diagram of the connection structure of the top cover and protective components of this utility model;

[0024] Figure 7 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0025] In the diagram: 1. Sand filter tank; 2. Carbon filter tank; 3. Softening tank; 4. RO reverse osmosis filter tank; 5. Support frame; 6. Multi-port discharge pipe; 7. Transposition mechanism; 71. Treatment box; 711. Positioning bracket; 72. First fixing frame; 721. First screw; 73. Second fixing frame; 731. Second screw; 74. Filter element; 75. Threaded plate; 76. Gear; 77. Control screw; 78. Bolt; 79. Top cover; 791. Top cover; 8. Protective assembly; 81. Slot; 82. Protective cover; 83. Locking screw. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] This application provides a water purification device with a graded reverse osmosis function, which solves the problem that a filter device is installed at one end of the concentrated water discharge pipe, but the filter element in the filter device will become clogged or even damaged after a period of use, causing the filter device to be in a malfunctioning state, the impurities in the recovered concentrated water are not completely filtered, and it is impossible to deal with the sudden situation that occurs during the use of the filter element in time. The application realizes the flexible replacement of the filter element in the filter device.

[0028] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0029] This utility model discloses a water purification device with a graded reverse osmosis function.

[0030] According to the appendix Figure 1-7 As shown, the system includes a sand filter tank 1, a carbon filter tank 2, a softening tank 3, an RO reverse osmosis filter tank 4, and a support 5 for mounting the sand filter tank 1, carbon filter tank 2, softening tank 3, and RO reverse osmosis filter tank 4. A drain pipe connected to the drain end of the sand filter tank 1, carbon filter tank 2, and softening tank 3 is fixedly installed at the bottom of the support 5. A multi-port drain pipe 6 connected to the drain end of the RO reverse osmosis filter tank 4 is also fixedly installed at the bottom of the support 5. The multi-port drain pipe 6 can transport the concentrated water discharged from the RO reverse osmosis filter tank 4. The sand filter tank 1, carbon filter tank 2, softening tank 3, RO reverse osmosis filter tank 4, and the support 5 constitute a reverse osmosis equipment of model HX-RO-0.5T. During operation, raw water, driven by the pump, first enters the sand filter tank 1 through the delivery pipe at the raw water tank. The filtration components inside the sand filter tank 1 remove impurities such as silt, colloidal suspended solids, and organic matter from the raw water. Then, it sequentially enters the carbon filter tank 2, softening tank 3, and RO reverse osmosis filter tank 4. The filtration components in the carbon filter tank 2 adsorb harmful substances such as residual ammonia and remove discoloration and odor. The filtration components in the softening tank 3 remove calcium and magnesium scale and limescale, improve taste, and soften water quality. The RO reverse osmosis membrane in the RO reverse osmosis filter tank 4 removes heavy metals, pesticide pollution, bacteria, parasites, and tiny impurities, enabling graded purification of the raw water.

[0031] See attached document Figure 2-7A switching mechanism 7 is provided at one end of the multi-port discharge pipe 6. This switching mechanism allows for the filtration of concentrated water and other impurities discharged from the multi-port discharge pipe 6 according to specific requirements. The switching mechanism 7 includes a treatment box 71, with multiple treatment boxes 71 fixedly connected to one end of the multi-port discharge pipe 6. A valve is installed on the multi-port discharge pipe 6. The treatment box 71 contains multiple sets of filter elements 74, such as filter plates, filter screens, and filter membranes with different mesh sizes. Positioning brackets 711 for positioning and installing the filter elements 74 are fixedly connected to the inner wall of the treatment box 71. Each set of treatment boxes 71 contains filters... The functions of components 74 differ. For example, when the discharged concentrated water is used for irrigation, the valve on the multi-port discharge pipe 6 is opened to allow the concentrated water to enter a treatment tank 71. At this time, the filter element 74 inside the treatment tank 71 can remove only large particulate impurities and some salt. If the discharged concentrated water is used for industrial reuse or discharged into water bodies with high water quality requirements, more refined treatment is required. At this time, the valve on the multi-port discharge pipe 6 is opened to allow the concentrated water to enter another treatment tank 71. The filter element 74 inside the other treatment tank 71 can remove most of the suspended solids, organic matter, and salt as required.

[0032] See attached document Figure 3 Appendix Figure 4 and attached Figure 7 The first fixing frame 72 and the second fixing frame 73 are both fixedly mounted on the top surface of the processing box 71 by screws or other fasteners. The top surfaces of the first fixing frame 72 and the second fixing frame 73 are respectively rotatably provided with a first screw 721 and a second screw 731, which are threadedly connected to a set of filter elements 74. The outer walls of the first screw 721 and the second screw 731 are respectively threaded with a set of threaded plates 75. The two sets of threaded plates 75 are respectively fixedly connected to the top surface of a set of filter elements 74. One end of each set of threaded plates 75 is limited to slide on the outer wall of the first fixing frame 72 and the second fixing frame 73, thereby limiting the movement trajectory of the threaded plates 75 and the filter elements 74. One end of each of the first screw 721 and the second screw 731 is fixedly connected with a set of gears 76. Two sets of gears 76 mesh with each other, and the control screw 77 is fixedly connected to the top surface of the first screw 721. The outer wall of the control screw 77 is threaded with a bolt 78 for locking. Specifically, by rotating the control screw 77, the first screw 721 is driven to rotate in the forward direction. At this time, under the action of the threaded connection of the two sets of gears 76, the second screw 731 can be driven to rotate in the reverse direction at the same time, so that the first screw 721 and the second screw 731 rotate in opposite directions. As a result, when one set of filter elements 74 controlled by the first screw 721 moves upward to the upper part of the treatment box 71, the other set of filter elements 74 controlled by the second screw 731 moves downward to the inside of the treatment box 71, realizing the replacement of the positions of the two sets of filter elements 74 at the treatment box 71.

[0033] See attached document Figure 2 and attached Figure 7 The top surface of the processing box 71 is fixedly connected to a top cover 79 for shielding the first fixing frame 72 and the second fixing frame 73. The top surface of the top cover 79 is rotatably connected to a top cover 791. The top surface of the top cover 791 is provided with a protective component 8. The protective component 8 is used to protect the connection position between the top cover 791 and the control screw 77. The protective component 8 includes a slot 81 opened on the top surface of the top cover 791 for positioning and engaging one end of the control screw 77, a protective cover 82 fixedly disposed on the top surface of the top cover 791 near the slot 81, and a locking screw 83 rotatably disposed between two adjacent sets of protective covers 82. Specifically, first close the connection with the control screw 77. After the control screw 77 is positioned corresponding to a set of top covers 791, the control screw 77 is engaged inside a set of slots 81 on the top surface of the top cover 791. Then, the bolt 78 is threaded onto one end of the control screw 77 to fix the control screw 77 to the top cover 791. Then, the other set of top covers 791 is closed, so that when the two sets of top covers 791 are in a closed state, the locking screw 83 locks the protective cover 82 set between the two sets of top covers 791, so that the two sets of top covers 791 are locked together, and the slots 81 and the control screw 77 are both protected inside the protective cover 82.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water purification device with a staged reverse osmosis function, comprising a sand filter tank (1), a carbon filter tank (2), a softening tank (3), an RO reverse osmosis filter tank (4), and a support (5), wherein a multi-port discharge pipe (6) connected to the drain end of the RO reverse osmosis filter tank (4) is fixedly installed at the bottom of the support (5), characterized in that, One end of the multi-port discharge pipe (6) is provided with a switching mechanism (7), the switching mechanism (7) comprising: The processing box (71) is fixedly connected to one end of the multi-port discharge pipe (6) and the processing box (71) is provided with multiple sets of filter elements (74). The first fixing frame (72) and the second fixing frame (73) are both fixedly installed on the top surface of the processing box (71). The top surfaces of the first fixing frame (72) and the second fixing frame (73) are respectively rotatably provided with a first screw (721) and a second screw (731) that are threadedly connected to a set of filter elements (74). Gears (76), one end of the first screw (721) and the second screw (731) are fixedly connected to a set of gears (76), and the two sets of gears (76) mesh with each other; A control screw (77) is fixedly connected to the top surface of the first screw (721), and the outer wall of the control screw (77) is threaded with a bolt (78) for locking it.

2. A water purification device with a staged reverse osmosis function according to claim 1, characterized in that: The top surface of the processing box (71) is fixedly connected to a top cover (79) for shielding the first fixing frame (72) and the second fixing frame (73), and the top surface of the top cover (79) is rotatably connected to a top cover (791).

3. A water purification device with a staged reverse osmosis function according to claim 2, characterized in that: The top surface of the top cover (791) is provided with a protective component (8), which is used to protect the connection position between the top cover (791) and the control screw (77).

4. A water purification device with a staged reverse osmosis function according to claim 3, characterized in that: The protective assembly (8) includes a slot (81) on the top surface of the top cover (791) for positioning and engaging one end of the control screw (77), a protective cover (82) fixedly covering the top surface of the top cover (791) near the slot (81), and a locking screw (83) rotatably disposed between two adjacent sets of protective covers (82).

5. A water purification device with a staged reverse osmosis function according to claim 1, characterized in that: The outer walls of the first screw (721) and the second screw (731) are respectively threaded with a set of threaded plates (75), and the two sets of threaded plates (75) are respectively fixedly connected to the top surface of a set of filter elements (74).

6. A water purification device with a staged reverse osmosis function according to claim 5, characterized in that: One end of each of the two sets of threaded plates (75) is limited to sliding on the outer wall of the first fixed frame (72) and the second fixed frame (73), respectively.

7. A water purification device with a staged reverse osmosis function according to claim 1, characterized in that: The inner wall of the processing box (71) is fixedly connected to a positioning bracket (711) for positioning and installing the filter element (74).