Reverse Osmosis Filtration Unit

Abstract

The utility model discloses a reverse osmosis filtration unit, comprising: a shell with an open side, a center tube coaxially arranged with the shell, and an end cap threadedly connected to the outer wall of the open side, a fixing ring is sleeved on the outer side of the center tube on the side of the open side of the end cap, a plurality of fixing rods are arranged between the fixing ring and the inner wall of the end cap, a support ring is sleeved on the circumferential outer wall of the center tube at one end located inside the shell and away from the end cap, a filter element assembly with a reverse osmosis membrane is located between the fixing ring and the support ring, and the support ring is slidably connected to the inner wall of the shell, one end of a threaded rod extends into the interior of the shell and is rotatably connected to the support ring through a shaft rod, and a threaded rod with a knob installed on the other end is threadedly connected to the shell. The utility model reverse osmosis filtration unit avoids the situation where the filter element assembly is shaken inside the device, which is conducive to extending the overall service life and also improves the filtering effect during long-term use.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis water purification, in particular to a reverse osmosis filtering unit. Background Art

[0002] In current life, reverse osmosis filter is a water treatment technology that uses the selective permeability of semipermeable membranes to allow water molecules to penetrate from low-concentration solutions to high-concentration solutions by applying a certain pressure, thereby removing impurities such as dissolved salts, organic matter, bacteria, viruses, etc. in water. Reverse osmosis technology is widely used in water purification devices, especially in the fields of household water purifiers, industrial water treatment and seawater desalination.

[0003] After searching, the patent publication number CN220633757U discloses "a reverse osmosis membrane shell filter assembly", including a tail cover and a top cover, a water guide pipe is fixedly provided on the side away from the top cover and the tail cover, a socket is fixedly provided on the side close to the top cover and the tail cover, two card slots are provided on the inner wall of the socket on one side of the top cover, and the card slot is "L" shaped, and a limit ring is fixedly provided on the side close to the top cover and the tail cover, and a thread is provided on the limit ring, and the same shell is movably provided between the tail cover and the top cover, and a central tube is provided in the shell, and a plurality of water leakage holes are provided on the surface of the central tube, and the two ends of the central tube are respectively movably connected with the two sockets, and the reverse osmosis membrane body is wound around the outside of the central tube, and a positioning structure is fixedly provided on both sides of the central tube. The device realizes the positioning and replacement of the reverse osmosis membrane, and other components in the equipment can still be used, which reduces the cost of use.

[0004] In the prior art, when replacing the filter element assembly, it is necessary to open the end cover and then replace the filter element assembly in the housing. However, the filter element assembly is prone to shaking inside the housing, resulting in a gap between the filter element assembly and the inner wall of the housing, affecting the filtering effect. Moreover, under the continuous impact of water flow for a long time, the shaking filter element assembly is also easily damaged, further affecting the filtering effect, thereby greatly shortening the service life of the device. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a reverse osmosis filtration unit, which avoids the influence of the filter element assembly shaking inside the device, is conducive to extending the overall service life, and also improves the filtering effect during long-term use.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a reverse osmosis filtration unit, comprising: a shell with one side being open, a central tube coaxially arranged with the shell, and an end cover threadedly connected with the outer wall of the open, a filter element assembly with a reverse osmosis membrane is located inside the shell, the end cover is opposite to the open side and a fixing ring is sleeved on the outer side of the central tube, and a plurality of fixing rods are arranged between the fixing ring and the inner wall of the end cover;

[0007] A support ring is sleeved on the circumferential outer wall of the central tube at one end located inside the shell and away from the end cover, a filter element assembly with a reverse osmosis membrane is located between the fixed ring and the support ring, and the support ring is slidably connected to the inner wall of the shell, one end of a threaded rod extends into the interior of the shell and is rotatably connected to the support ring through an axle rod, and the other end of the threaded rod is equipped with a knob and is threadedly connected to the shell.

[0008] The further improved scheme in the above technical scheme is as follows:

[0009] 1. In the above solution, a plurality of sleeves with internal sliding connection to the limit plate are installed on the inner wall of the shell, and the support ring and the limit plate are fixedly connected by a connecting rod.

[0010] 2. In the above solution, the connecting rods are distributed at equal intervals along the circumference of the support ring.

[0011] 3. In the above solution, a set of rods is arranged between the threaded rod and the housing.

[0012] 4. In the above solution, the fixing rods are distributed at equal intervals.

[0013] 5. In the above solution, both ends of the filter element assembly have a fixing plate.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] The utility model discloses a reverse osmosis filtration unit, wherein an end cap is opposite to an open side and a fixing ring is sleeved on the outer side of a central tube, a plurality of fixing rods are arranged between the fixing ring and the inner wall of the end cap, a supporting ring is sleeved on the circumferential outer wall of the central tube at one end located inside the shell and away from the end cap, a filter element assembly with a reverse osmosis membrane is located between the fixing ring and the supporting ring, and the supporting ring is slidably connected to the inner wall of the shell, one end of a threaded rod extends into the interior of the shell and is rotatably connected to the supporting ring through an axle rod, and a threaded rod with a knob installed on the other end is threadedly connected to the shell, the filter element assembly with the reverse osmosis membrane is replaced by disassembling the end cap from the shell, after the filter element assembly is placed inside the shell, the end cap is connected to the shell by screwing, and then the supporting ring can be pushed to move by rotating the threaded rod, and the filter element assembly is clamped and fixed between the fixing ring and the supporting ring, thereby avoiding the situation where the filter element assembly is shaken inside the shell, which is beneficial to prolonging the overall service life and improving the filtering effect during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 This is a schematic diagram of the overall structure of the reverse osmosis filtration unit of the utility model;

[0017] Attached Figure 2 This is a structural cross-sectional view of the reverse osmosis filtration unit of the utility model;

[0018] Attached Figure 3 The partial structural decomposition of the reverse osmosis filtration unit of the utility model Figure 1 ;

[0019] Attached Figure 4 The partial structural decomposition of the reverse osmosis filtration unit of the utility model Figure 2 .

[0020] In the above figures: 1, outer shell; 101, open mouth; 2, center tube; 3, end cover; 4, fixing ring; 5, fixing rod; 61, support ring; 62, connecting rod; 63, limit plate; 64, sleeve; 65, knob; 66, threaded rod; 67, shaft rod; 68, sleeve rod; 71, filter element assembly; 72, reverse osmosis membrane; 8, fixing plate. DETAILED DESCRIPTION

[0021] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0022] Embodiment 1: A reverse osmosis filtration unit comprises: a housing 1 with one side being set as an opening 101, a central tube 2 coaxially arranged with the housing 1, and an end cover 3 threadedly connected with the outer wall of the opening 101, a filter element assembly 71 having a reverse osmosis membrane 72 is located inside the housing 1, the end cover 3 is opposite to one side of the opening 101 and is sleeved with a fixing ring 4 on the outer side of the central tube 2, and a plurality of fixing rods 5 are arranged between the fixing ring 4 and the inner wall of the end cover 3;

[0023] When the filter element assembly needs to be replaced, first open the end cover, replace the filter element assembly and the reverse osmosis membrane, place the replaced filter element assembly and the reverse osmosis membrane inside the surgery, then cover the end cover, and abut the fixing ring fixedly connected to the end cover by the fixing rod against the fixing plate;

[0024] A support ring 61 is sleeved on the circumferential outer wall of the central tube 2 at one end located inside the housing 1 and away from the end cover 3, a filter element assembly 71 having a reverse osmosis membrane 72 is located between the fixing ring 4 and the support ring 61, and the support ring 61 is slidably connected to the inner wall of the housing 1, one end of a threaded rod 66 extends into the interior of the housing 1 and is rotatably connected to the support ring 61 through a shaft 67, and the threaded rod 66 with a knob 65 installed on the other end is threadedly connected to the housing 1;

[0025] Turning the knob drives the threaded rod installed at one end to move, the threaded rod drives the shaft rod to move, the shaft rod drives the support ring installed at one end to move, and the connecting rod installed at one end of the support ring slides inside the sleeve. At this time, the support ring squeezes the fixed plate on the other side, thereby clamping and pressing the filter element assembly to prevent it from shaking and affecting its use.

[0026] A plurality of sleeves 64 slidably connected to the limiting disk 63 are installed on the inner wall of the housing 1 , and the support ring 61 and the limiting disk 63 are fixedly connected via a connecting rod 62 .

[0027] A set of rods 68 is arranged between the threaded rod 66 and the housing 1 .

[0028] The fixing rods 5 are distributed at equal intervals.

[0029] Both ends of the filter element assembly 71 are provided with a fixing plate 8 .

[0030] Embodiment 2: A reverse osmosis filtration unit, comprising: a housing 1 with one side being set as an opening 101, a central tube 2 coaxially arranged with the housing 1, and an end cover 3 threadedly connected to the outer wall of the opening 101, a filter element assembly 71 having a reverse osmosis membrane 72 is located inside the housing 1, the end cover 3 is opposite to one side of the opening 101 and is sleeved with a fixing ring 4 on the outer side of the central tube 2, and a plurality of fixing rods 5 are arranged between the fixing ring 4 and the inner wall of the end cover 3;

[0031] A support ring 61 is sleeved on the circumferential outer wall of the central tube 2 at one end located inside the housing 1 and away from the end cover 3, a filter element assembly 71 having a reverse osmosis membrane 72 is located between the fixing ring 4 and the support ring 61, and the support ring 61 is slidably connected to the inner wall of the housing 1, one end of a threaded rod 66 extends into the interior of the housing 1 and is rotatably connected to the support ring 61 through a shaft 67, and the threaded rod 66 with a knob 65 installed on the other end is threadedly connected to the housing 1;

[0032] The filter element assembly with the reverse osmosis membrane is replaced by disassembling the end cover and the outer shell. After the filter element assembly is placed inside the outer shell, the end cover is connected to the outer shell by screwing, and then the support ring can be pushed to move by rotating the threaded rod, and the filter element assembly is clamped and fixed between the fixing ring and the support ring, thereby avoiding the influence of the filter element assembly shaking inside the outer shell, which is beneficial to prolonging the overall service life and improving the filtering effect during long-term use.

[0033] A plurality of sleeves 64 slidably connected to the limiting disk 63 are installed on the inner wall of the housing 1 , and the support ring 61 and the limiting disk 63 are fixedly connected via a connecting rod 62 .

[0034] The connecting rods 62 are distributed at equal intervals along the circumference of the support ring 61 .

[0035] A set of rods 68 is arranged between the threaded rod 66 and the housing 1 .

[0036] The fixing rods 5 are distributed at equal intervals.

[0037] Both ends of the filter element assembly 71 are provided with a fixing plate 8 .

[0038] The working principle is:

[0039] When the filter element assembly needs to be replaced during use, the end cover is first opened to replace the filter element assembly and the reverse osmosis membrane, and the replaced filter element assembly and the reverse osmosis membrane are placed inside the surgery, and then the end cover is covered, and the fixing ring fixedly connected to the end cover by the fixing rod abuts against the fixing plate;

[0040] Finally, turn the knob to drive the threaded rod installed at one end to move, the threaded rod drives the shaft rod to move, the shaft rod drives the support ring installed at one end to move, and the connecting rod installed at one end of the support ring slides inside the sleeve. At this time, the support ring squeezes the fixed plate on the other side, thereby clamping and pressing the filter element assembly to prevent it from shaking and affecting its use.

[0041] By adopting the above-mentioned reverse osmosis filtration unit, the filter element assembly with the reverse osmosis membrane is replaced after the end cover and the outer shell are disassembled. After the filter element assembly is placed inside the outer shell, it is connected to the outer shell by screwing the end cover, and then the support ring can be pushed to move by rotating the threaded rod, and the filter element assembly is clamped and fixed between the fixing ring and the support ring, thereby avoiding the influence of the filter element assembly shaking inside the outer shell, which is beneficial to prolonging the overall service life and improving the filtering effect during long-term use.

[0042] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A reverse osmosis filtration unit, comprising: A housing (1) having an opening (101) on one side, a central tube (2) coaxially arranged with the housing (1), and an end cover (3) threadedly connected to the outer wall of the opening (101), wherein a filter element assembly (71) having a reverse osmosis membrane (72) is located inside the housing (1), characterized in that a fixing ring (4) is sleeved on the outer side of the central tube (2) on the side of the end cover (3) opposite to the opening (101), and a plurality of fixing rods (5) are arranged between the fixing ring (4) and the inner wall of the end cover (3); A support ring (61) is sleeved on the circumferential outer wall of the central tube (2) at one end located inside the housing (1) and away from the end cover (3); the filter element assembly (71) is located between the fixing ring (4) and the support ring (61), and the support ring (61) is slidably connected to the inner wall of the housing (1); one end of a threaded rod (66) extends into the interior of the housing (1) and is rotatably connected to the support ring (61) via a shaft (67); and the other end of the threaded rod (66) is provided with a knob (65) and is threadedly connected to the housing (1).

2. The reverse osmosis filtration unit according to claim 1, characterized in that: A plurality of sleeves (64) internally slidably connected to the limiting disk (63) are mounted on the inner wall of the housing (1), and the support ring (61) and the limiting disk (63) are fixedly connected via a connecting rod (62).

3. The reverse osmosis filtration unit according to claim 2, characterized in that: The connecting rods (62) are distributed at equal intervals along the circumference of the support ring (61).

4. The reverse osmosis filtration unit according to claim 1, characterized in that: A set of rods (68) is provided between the threaded rod (66) and the housing (1).

5. The reverse osmosis filtration unit according to claim 1, characterized in that: The fixing rods (5) are distributed at equal intervals.

6. The reverse osmosis filtration unit according to claim 1, characterized in that: Both ends of the filter element assembly (71) are provided with a fixing plate (8).

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