Reverse osmosis membrane filter element

Abstract

A reverse osmosis membrane filter element relates to the technical field of reverse osmosis membranes and comprises a shell, a water inlet end cover and a water outlet end cover are fixedly connected to the two ends of the shell respectively, a sleeve part is integrally connected to the side edge of the water inlet end cover and corresponds to the water outlet end cover, a plurality of clamping grooves are formed in the side edge of the sleeve part, and bending parts are further integrally arranged on the clamping grooves. A plurality of clamping blocks are fixedly connected to the side, close to the water outlet end cover, of the shell, and the clamping blocks and the clamping grooves are correspondingly clamped; a locking block is further movably connected into the clamping block, and after the clamping block is clamped into the clamping groove, the locking block is automatically clamped into the bending part; according to the reverse osmosis membrane filter element provided by the utility model, the sleeve part is hermetically connected with the water outlet end cover, and the locking block is arranged on the clamping block, so that the locking block can be automatically locked at the bending part as long as the clamping block is correspondingly inserted into the corresponding clamping groove in the connecting process of the two filter elements; when the filter element needs to be disassembled for maintenance, the locking block can be driven to retract into the clamping block by rotating the screw rod and then is unlocked; in this way, the filter element can be conveniently disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis membranes, and more specifically, to a reverse osmosis membrane filter element. Background Technique

[0002] A reverse osmosis membrane is an artificial semi-permeable membrane with certain biological semi-permeable membrane characteristics. The filter element made of the reverse osmosis membrane is commonly used in equipment for purifying water sources. Under a certain pressure, water molecules can pass through the reverse osmosis membrane, while impurities such as inorganic salts and heavy metal ions in the source water cannot pass through the reverse osmosis membrane, so pure water and concentrated water can be separated from the source water to achieve the purification of the source water. For example, the Chinese patent with the patent number CN117138580A discloses a reverse osmosis membrane filter element structure, which is to purify the source water by using the reverse osmosis membrane.

[0003] When the existing reverse osmosis membrane filter element is replaced and overhauled, the installation and disassembly are relatively difficult. Therefore, the utility model proposes a reverse osmosis membrane filter element that is convenient for installation and disassembly to solve the deficiencies in the above technical background. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the installation and disassembly of the existing reverse osmosis membrane filter element are relatively difficult.

[0005] The purpose and effect of a reverse osmosis membrane filter element of the utility model are achieved by the following specific technical means: A reverse osmosis membrane filter element includes a hollow housing. Both ends of the housing are fixedly connected with an inlet end cap and an outlet end cap respectively, and both the inlet end cap and the outlet end cap are hermetically connected to the housing. The center of the inlet end cap is provided with a central inlet hole and a plurality of side inlet holes, and the side inlet holes are circumferentially distributed around the central inlet hole; the center of the outlet end cap is provided with a central outlet hole and a plurality of side outlet holes, and the side outlet holes are circumferentially distributed around the central outlet hole; a central tube is inserted between the central inlet hole and the central outlet hole. A plurality of water collecting holes are provided on the central tube, and a reverse osmosis membrane is also spirally wound around the central tube. The inner end of the reverse osmosis membrane is fixedly connected to the water collecting holes. The side of the inlet end cap is integrally connected with a sleeve part, and the sleeve part is arranged corresponding to the outlet end cap. A plurality of clamping grooves are circumferentially distributed on the side of the sleeve part, and a bent part is also integrally arranged on the clamping grooves. A plurality of clamping blocks are fixedly connected to the side of the housing near the outlet end cap, and the clamping blocks are correspondingly clamped with the clamping grooves; a locking block is also movably connected in the clamping block. When the clamping block is clamped into the clamping groove, the locking block automatically snaps into the bent part.

[0006] Further, at least one second sealing ring is sleeved on the side wall of the outlet end cap.

[0007] Further, one end of the central tube is inserted into the central inlet hole by half, and the other end of the central tube penetrates through the central outlet hole and extends out of it. When two filter elements are connected, the part of the central tube extending out of the central outlet hole is inserted into the central inlet hole.

[0008] Furthermore, at least one first sealing ring is sleeved on the outer wall of the part of the central pipe extending out of the central water outlet hole.

[0009] Furthermore, the locking block is slidably connected to the clamping block in a resetable manner, and a driving reset mechanism for driving the locking block to contract into the clamping block is further arranged in the clamping block.

[0010] Furthermore, the driving reset mechanism includes a pulling rope. A screw rod is rotatably connected in the clamping block. The part of the screw rod in the threaded clamping block is hollow, and a slider is slidably connected in the hollow part. The screw rod penetrates through the slider and is threadedly connected with the slider. A pulling rope is fixedly connected between the slider and the locking block. A guiding groove for restricting the trajectory of the pulling rope is arranged in the clamping block.

[0011] Furthermore, a plug rod is inserted into the part of the screw rod extending out of the clamping block.

[0012] Furthermore, the plug rod is slidably inserted into the end of the screw rod, and limiting blocks are fixedly connected to both ends of the plug rod.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model provides a reverse osmosis membrane filter element. Through the sealed connection between the sleeve part and the water outlet end cover, and by arranging the locking block on the clamping block, during the connection process of the two filter elements, as long as the clamping block is inserted into the corresponding clamping groove, the locking block can be automatically locked at the bending part; when it is necessary to disassemble the filter element for maintenance, the locking block can be retracted into the clamping block and unlocked by rotating the screw rod; the filter element can be conveniently disassembled and installed in the above way. Description of the Drawings

[0015] Figure 1 It is a schematic front sectional view of the utility model.

[0016] Figure 2 It is a schematic right view structure diagram of the utility model.

[0017] Figure 3 It is a schematic diagram of the head-to-tail connection of two filter elements of the utility model.

[0018] Figure 4 It is the utility model Figure 1 An enlarged schematic diagram of part A in the utility model.

[0019] Figure 5 It is the utility model Figure 3 An enlarged schematic diagram of part B in the utility model.

[0020] Figure 6 It is a schematic structure diagram of the plug rod part of the utility model.

[0021] Figures 1-6Chinese: 1 - housing, 2 - central pipe, 201 - water collection hole, 202 - sealing ring I, 3 - reverse osmosis membrane, 4 - inlet end cap, 401 - side inlet hole, 402 - central inlet hole, 403 - sleeve part, 404 - card slot, 405 - bent part, 5 - outlet end cap, 501 - side outlet hole, 502 - central outlet hole, 503 - sealing ring II, 6 - clamping block, 601 - locking block, 602 - pull rope, 603 - guide groove, 604 - slider, 605 - screw rod, 606 - inserting rod, 607 - limiting block. Specific embodiments

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] As Figures 1 to 6 shown: A reverse osmosis membrane filter element includes a housing 1. The housing 1 is a hollow cylindrical structure, and an inlet end cap 4 and an outlet end cap 5 are respectively fixedly connected to both ends of the housing 1. The inlet end cap 4 and the outlet end cap 5 are both hermetically connected to the housing 1. The inlet end cap 4 is used for water inlet, and the outlet end cap 5 is used for water outlet. A central inlet hole 402 is provided in the center of the inlet end cap 4, and a plurality of side inlet holes 401 are also provided in the inlet end cap 4. The side inlet holes 401 are circumferentially distributed around the central inlet hole 402. A central outlet hole 502 is provided in the center of the outlet end cap 5, and a plurality of side outlet holes 501 are also provided in the outlet end cap 5. The side outlet holes 501 are circumferentially distributed around the central outlet hole 502. A central pipe 2 is inserted between the central inlet hole 402 and the central outlet hole 502. A plurality of water collection holes 201 are provided on the central pipe 2, and the water collection holes 201 are arranged in a line. A reverse osmosis membrane 3 is spirally wound around the central pipe 2. The inner end of the reverse osmosis membrane 3 is fixedly connected to the water collection hole 201. Specifically, the reverse osmosis membrane 3 is composed of a membrane sheet, an inlet grid, and an outlet grid, and the membrane sheet is composed of a polyester non-woven fabric, a polysulfone support layer, and an ultra-thin desalination layer. Source water enters the housing 1 from the side inlet holes 401, reaches the membrane sheet from the inlet grid. Water molecules pass through the membrane sheet to the outlet grid to form pure water. The pure water moves along a spiral arc-shaped trajectory and then enters the central pipe 2 from the water collection hole 201, so that the source water can be separated into pure water and concentrated water. Among them, the pure water flows out from the central pipe 2, and the concentrated water flows out from the side outlet holes 501.

[0024] Among them, as Figures 1 to 5As shown, when purifying raw water, generally multiple reverse osmosis membrane filters are connected together to achieve a better purification effect; in this application, a sleeve portion 403 is integrally connected to the side of the water inlet end cap 4, and the sleeve portion 403 is correspondingly arranged with the water outlet end cap 5. Specifically, the water outlet end cap 5 can be inserted and embedded into the sleeve portion 403, thereby initially connecting the two filters together; several card slots 404 are circumferentially distributed on the side of the sleeve portion 403, and a bent portion 405 is also integrally provided on the card slots 404. A plurality of clamping blocks 6 are fixedly connected to the side of the housing 1 close to the water outlet end cap 5, and the clamping blocks 6 are correspondingly clamped with the card slots 404; a locking block 601 is also movably connected in the clamping block 6. After the clamping block 6 is clamped into the card slot 404, the locking block 601 automatically snaps into the bent portion 405, thereby locking the connection of the two filters.

[0025] Among them, as Figures 1 to 4 shown, a second sealing ring 503 is sleeved on the side wall of the water outlet end cap 5, and at least one second sealing ring 503 is sleeved. Through the second sealing ring 503, the sleeve portion 403 and the water outlet end cap 5 can be hermetically connected.

[0026] Among them, as Figures 1 to 4 shown, one end of the central tube 2 is inserted into the central water inlet hole 402 by half, and the other end of the central tube 2 penetrates through the central water outlet hole 502 and extends out. When the two reverse osmosis membrane filters are connected, the part of the central tube 2 extending out of the central water outlet hole 502 is inserted into the central water inlet hole 402, thereby completing the connection of the central tube 2.

[0027] Among them, as Figure 4 shown, a first sealing ring 202 is sleeved on the outer wall of the part of the central tube 2 extending out of the central water outlet hole 502, and at least one first sealing ring 202 is sleeved. Through the first sealing ring 202, the sealing connection between the central tubes 2 is realized.

[0028] Among them, as Figures 5 to 6 shown, the locking block 601 is slidably connected in the clamping block 6 in a resetable manner. Specifically, its reset function can be realized by arranging a reset spring between the locking block 601 and the clamping block 6; during the process of the clamping block 6 being clamped into the card slot 404, the locking block 601 is first squeezed into the clamping block 6 until it reaches the bent portion 405, and then the locking block 601 pops outwards and is locked at the bent portion 405. At this time, the connection between the two filters is locked; a driving and reset mechanism is also provided in the clamping block 6, and the driving and reset mechanism is used to drive the locking block 601 to contract into the clamping block 6.

[0029] Among them, as Figures 5 to 6As shown in the figure, the driving and reset mechanism includes a pulling rope 602. A screw rod 605 is rotatably connected in a clamping block 6. The part of the screw rod 605 with threads in the clamping block 6 is hollow, and a sliding block 604 is slidably connected in the hollow part. The screw rod 605 penetrates through the sliding block 604 and is threadedly connected thereto. When the screw rod 605 rotates, it can drive the sliding block 604 to slide in the clamping block 6. A pulling rope 602 is fixedly connected between the sliding block 604 and a locking block 601. A guiding groove 603 for restricting the trajectory of the pulling rope 602 is provided in the clamping block 6, and the pulling rope 602 is restricted to move within the guiding groove 603. When the sliding block 604 moves, it can pull the locking block 601 to move through the pulling rope 602, so that the locking block 601 can be retracted into the clamping block 6. At this time, the locking block 601 is no longer locked at the bending part 405, and the connection between the two filter elements is no longer locked, thus facilitating the quick disassembly of the filter elements.

[0030] Among them, as Figures 5 to 6 shown, a plug rod 606 is inserted into the part of the screw rod 605 that penetrates through the clamping block 6 and extends to the outside thereof. The rotation of the screw rod 605 can be conveniently driven through the plug rod 606.

[0031] Among them, as Figure 6 shown, the plug rod 606 is slidably inserted into the end of the screw rod 605, and limiting blocks 607 are fixedly connected to both ends of the plug rod 606. The limiting blocks 607 are used to prevent the plug rod 606 from falling off the end of the screw rod 605. By moving the plug rod 606, the length of one side of the plug rod 606 can be extended, making it better stressed and more convenient to rotate the screw rod 605.

[0032] Working principle: When installing the filter element, insert the water outlet end cover 5 of one filter element into the sleeve part 403 of another filter element, and at the same time align the clamping block 6 with the clamping groove 404, and snap the clamping block 6 into the clamping groove 404. During this process, the locking block 601 is squeezed and retracted into the clamping block 6 until the locking block 601 pops out at the bending part 405, thus completing the connection and locking between the two filter elements; when the filter element needs to be disassembled, rotate the screw rod 605 in the clamping block 6 of the connection part of one filter element to drive the locking block 601 to retract into the clamping block 6. At this time, the locking block 601 no longer locks the bending part 405, and the filter element can be conveniently disassembled; after the filter element is disassembled, rotate the screw rod 605 to reset it, facilitating the quick installation of the filter element; through the water outlet end cover 5 being hermetically inserted into the sleeve part 403, and at the same time the locking block 601 locks the connection between the two filter elements, the convenient installation and disassembly of the filter element connection can be completed.

Claims

1. A reverse osmosis membrane filter element includes a hollow housing (1). Both ends of the housing (1) are fixedly connected with a water inlet end cover (4) and a water outlet end cover (5) respectively, and both the water inlet end cover (4) and the water outlet end cover (5) are hermetically connected to the housing (1). A central water inlet hole (402) and a plurality of side water inlet holes (401) are provided at the center of the water inlet end cover (4), and the side water inlet holes (401) are circumferentially distributed around the central water inlet hole (402); a central water outlet hole (502) and a plurality of side water outlet holes (501) are provided at the center of the water outlet end cover (5), and the side water outlet holes (501) are circumferentially distributed around the central water outlet hole (502); a central pipe (2) is inserted between the central water inlet hole (402) and the central water outlet hole (502). A plurality of water collecting holes (201) are provided on the central pipe (2), and a reverse osmosis membrane (3) is also spirally wound around the central pipe (2). The inner end of the reverse osmosis membrane (3) is fixedly connected to the water collecting holes (201), and it is characterized in that: A sleeve part (403) is integrally connected to the side of the water inlet end cover (4). The sleeve part (403) is arranged corresponding to the water outlet end cover (5). A plurality of clamping grooves (404) are circumferentially distributed on the side of the sleeve part (403). A bending part (405) is also integrally arranged on the clamping groove (404). A plurality of clamping blocks (6) are fixedly connected to one side of the housing (1) close to the water outlet end cover (5). The clamping blocks (6) are correspondingly clamped with the clamping grooves (404); A locking block (601) is movably connected in the clamping block (6). After the clamping block (6) is clamped into the clamping groove (404), the locking block (601) automatically clamps into the bending part (405).

2. The reverse osmosis membrane filter element according to claim 1, wherein: At least one second sealing ring (503) is sleeved on the side wall of the water outlet end cover (5).

3. The reverse osmosis membrane filter element according to claim 2, wherein: One end of the central pipe (2) is inserted into the central water inlet hole (402) by half, and the other end of the central pipe (2) passes through the central water outlet hole (502) and extends out of it. When the two filter elements are connected, the part of the central pipe (2) extending out of the central water outlet hole (502) is inserted into the central water inlet hole (402).

4. The reverse osmosis membrane filter element according to claim 3, characterized in that: At least one first sealing ring (202) is sleeved on the outer wall of the part of the central pipe (2) extending out of the central water outlet hole (502).

5. The reverse osmosis membrane filter element according to claim 1, characterized in that: The locking block (601) is slidably connected to the clamping block (6) in a resetable manner, and a driving and resetting mechanism for driving the locking block (601) to contract into it is also arranged in the clamping block (6).

6. The reverse osmosis membrane filter element according to claim 5, wherein: The driving and resetting mechanism includes a pulling rope (602). A screw rod (605) is rotatably connected in the clamping block (6). The part of the screw rod (605) with threads in the clamping block (6) is hollow, and a sliding block (604) is slidably connected in the hollow part. The screw rod (605) passes through the sliding block (604) and is threadedly connected to it. A pulling rope (602) is fixedly connected between the sliding block (604) and the locking block (601). A guiding groove (603) for restricting the trajectory of the pulling rope (602) is arranged in the clamping block (6).

7. The reverse osmosis membrane filter element according to claim 6, characterized in that: A plug rod (606) is inserted into the part of the screw rod (605) extending out of the clamping block (6).

8. The reverse osmosis membrane filter element according to claim 7, characterized in that: The plug rod (606) is slidably inserted into the end of the screw rod (605), and limiting blocks (607) are fixedly connected to both ends of the plug rod (606).

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