Two-section reverse osmosis unit

Abstract

The utility model discloses a two-section type reverse osmosis unit which comprises a mounting frame, a high-pressure pump is arranged on one side of the mounting frame, a reverse osmosis unit and a preprocessor are mounted on one side of the mounting frame, two ends of the high-pressure pump are connected with quick clamping devices, and each quick clamping device comprises a connecting pipe, a clamping mechanism, a fixing pipe, a releasing sleeve, a reducing groove, a sealing sleeve and a reducing plate. The reducing groove is formed in the inner side of the releasing sleeve, the sealing sleeve is installed on the inner side of the fixing pipe, the reducing plate is located in the reducing groove, the reinforcing mechanism is installed on the outer side of the fixing pipe, and the reinforcing mechanism comprises a movable block, a movable hole, a fixing block, a movable groove, a limiting rod, a limiting plate, a positioning spring, a positioning block, a movable plate, a movable spring, a positioning sleeve and a cylindrical block. The two limiting plates are installed on the limiting rod, the positioning spring is connected with the positioning block, the movable spring is connected with the movable block and the fixed block, and the cylindrical block is installed on the outer side of the fixed pipe.

Description

Technical Field

[0001] This utility model relates to the field of reverse osmosis unit technology, and more specifically, to a two-stage reverse osmosis unit. Background Technology

[0002] In existing two-stage reverse osmosis unit technology, in order to achieve a complete workflow, the equipment usually needs to be connected through multiple pipes. The reverse osmosis system relies on the precise connection of these pipes to ensure that water flows smoothly and efficiently through the equipment to achieve water filtration and purification. However, current technology often has some significant drawbacks in the process of connecting and disconnecting pipes, especially in terms of ease of operation and equipment stability.

[0003] First, connecting and disconnecting pipelines usually requires the use of different specialized tools. For example, traditional pipeline connections often rely on welding, threaded connections, and flange connections. These methods often require specialized tools and certain technical requirements, making the entire operation not only cumbersome and time-consuming. These complex operation steps not only increase the workload of on-site installation and maintenance, but also require the use of multiple specialized tools. They also make equipment debugging and replacement more difficult. Once a fault occurs, maintenance personnel often need to spend more time disassembling, inspecting, and repairing, especially when dealing with complex pipeline systems. This results in low work efficiency and may even lead to system damage due to improper operation, increasing the overall operating cost of the system.

[0004] Secondly, although some existing technologies have attempted to achieve rapid connection and disconnection of pipelines through the cooperation of certain components in an effort to improve operational convenience and efficiency, the structural design of these components is relatively simple and lacks sufficient stability. In practical applications, the impact of water flow and the vibration of the equipment itself during operation often cause the pipeline connection components to loosen or shift. The pressure fluctuations of the water flow inside the pipeline, coupled with the vibration effect during equipment operation, can easily cause the connection components to gradually lose their original fixation after a period of time, or even cause the pipeline to fall off. This not only affects the normal operation of the reverse osmosis equipment, but may also lead to water leakage, resulting in equipment damage, production interruption, and even affecting the safety of the surrounding environment. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a two-stage reverse osmosis unit to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a two-stage reverse osmosis unit, including a mounting frame. A high-pressure pump is detachably mounted on one side of the mounting frame, and a reverse osmosis unit and a pre-processor are mounted on the other side of the mounting frame. Both ends of the high-pressure pump are connected to quick-clamping devices. Each quick-clamping device includes a connecting pipe, a clamping mechanism, a fixing pipe, a release sleeve, a variable diameter groove, a sealing sleeve, and a variable diameter plate. Both ends of the connecting pipe are detachably connected to the fixing pipe. The fixing pipe is fixedly connected to one end of the pre-processor and both ends of the high-pressure pump. The release sleeve is rotatably mounted on the outside of the fixing pipe. The variable diameter groove is formed inside the release sleeve. The sealing sleeve is detachably mounted inside the fixing pipe. The variable diameter plate slides within the variable diameter groove. The outer side of the fixing pipe is equipped with... The device is equipped with a reinforcement mechanism, which includes a movable block, a movable hole, a fixed block, a movable groove, a limiting rod, a limiting plate, a positioning spring, a positioning block, a movable plate, a movable spring, a positioning sleeve, and cylindrical blocks. The movable block is fixedly installed on one side of the movable plate, the movable hole is opened at one end of the movable groove, the fixed block is fixedly installed on the outside of the fixed tube, the movable groove is opened on the movable plate, the limiting rod is fixedly connected to one side of the positioning sleeve, two limiting plates are fixedly installed on the limiting rod, the two ends of the positioning spring are respectively connected to two adjacent positioning blocks, the movable plate is rotatably installed on the outside of the fixed tube, the two ends of the movable spring are respectively connected to the movable block and the fixed block, the positioning sleeve is set on the outside of the fixed tube, and multiple cylindrical blocks are fixedly installed on the outside of the fixed tube.

[0009] The present invention is further configured such that an input tube is connected to the input terminal of the preprocessor.

[0010] The present invention is further configured such that multiple guide grooves are provided on the outer side of the fixed tube, and multiple guide blocks are fixedly provided on the inner side of the positioning sleeve, with the guide blocks sliding in the guide grooves.

[0011] The present invention is further configured such that a positioning groove is provided in the positioning block, a plurality of positioning rails are fixedly provided on one side of the release sleeve, the positioning groove is adapted to the positioning rails, and a positioning wheel is rotatably provided on one side of the positioning block, the positioning wheel being engaged between two corresponding cylindrical blocks.

[0012] The present invention is further configured such that a support spring is movably sleeved on the outside of the limiting rod, one end of the support spring is connected to the positioning sleeve, and the other end of the support spring is in contact with the movable plate.

[0013] The present invention is further configured such that a sealing groove is provided in the fixed tube, and multiple sealing rings are provided on the outside of the connecting tube. The sealing rings are inserted into the corresponding sealing grooves. Both the sealing sleeve and the sealing rings are made of rubber material, which further improves the sealing performance at the connection between the connecting tube and the fixed tube.

[0014] The present invention is further configured such that an arc-shaped rod is connected to one side of the movable block, and an arc-shaped hole is provided in the fixed block. One end of the arc-shaped rod slides through the arc-shaped hole, which restricts the movement trajectory of the movable spring and ensures the stable use of the movable spring.

[0015] The present invention is further configured such that the snap-fit ​​mechanism includes a plug rod and a slot, the plug rod is fixedly connected to one side of the reducing plate, the slot is opened on the outside of the connecting pipe, and the end of the plug rod and one side of the inner wall of the slot are both chamfered, providing a connection base and allowing the sealing sleeve to be pressed.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a two-stage reverse osmosis unit, which has the following advantages:

[0018] 1. The quick-clamp device, through its ingenious design, provides convenience and sealing for pipe connections. Especially when disassembling and replacing pipes, it significantly improves operational efficiency. Specifically, the detachable connection between the connecting pipe and the fixed pipe, along with the effective cooperation of the sealing sleeve and sealing ring, ensures a tight fit between the connecting components, avoiding the risk of water leakage. When the sleeve is rotated, the variable diameter groove allows the variable diameter plate to smoothly slide the insertion rod out of the slot, making the connecting pipe easy to pull out for maintenance or replacement. After pipe replacement, the sleeve is rotated in the opposite direction, and the insertion rod is reinserted into the slot. The outer wall of the connecting pipe presses against the sealing sleeve, ensuring a tight seal and preventing water leakage. Through this process, the quick-clamp device effectively simplifies the pipe connection and disassembly process, reduces the complexity of manual operation and the required tools, and improves work efficiency and ease of operation.

[0019] 2. The reinforcement mechanism plays a crucial role in ensuring the stability of the pipeline connection, guaranteeing the stability of the connecting components during operation. Especially under the influence of water flow impact and equipment vibration, it mitigates the risk of pipeline loosening or displacement. The design of components such as limit rods, limit plates, positioning blocks, and positioning springs provides multiple supports and limits during pipeline connection, preventing loosening of connecting components due to vibration or external forces. Furthermore, the reset function of the support springs ensures the reinforcement structure remains stable during equipment operation, effectively preventing pipeline detachment or unstable connections. This guarantees the reliability and safety of the reverse osmosis unit during long-term operation. Therefore, the reinforcement mechanism ensures the structural stability of the pipeline connection, significantly improving the stability and safety of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the two-stage reverse osmosis unit in this utility model;

[0021] Figure 2This is a structural schematic diagram of the fast-loading card device and the reinforcing mechanism of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the fast-loading card device and the reinforcing mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the dispersed structure of the fast-loading card device and the reinforcing mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram showing the dispersed cross-sectional structure of the fast-loading device and the reinforcing mechanism of this utility model.

[0025] In the diagram: 1. Mounting bracket; 2. High-pressure pump; 3. Reverse osmosis unit; 4. Pre-processor; 5. Connecting pipe; 6. Fixing pipe; 7. Release sleeve; 8. Variable diameter groove; 9. Sealing sleeve; 10. Variable diameter plate; 11. Movable block; 12. Movable hole; 13. Fixing block; 14. Movable groove; 15. Limiting rod; 16. Limiting plate; 17. Positioning spring; 18. Positioning block; 19. Movable plate; 20. Movable spring; 21. Positioning sleeve; 22. Cylindrical block; 23. Input pipe; 24. Guide groove; 25. Guide block; 26. Positioning groove; 27. Positioning rail; 28. Positioning wheel; 29. ​​Support spring; 30. Sealing groove; 31. Sealing ring; 32. Arc rod; 33. Arc hole; 34. Insert rod; 35. Slot. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5A two-stage reverse osmosis unit includes a mounting frame 1. A high-pressure pump 2 is detachably mounted on one side of the mounting frame 1. A reverse osmosis unit 3 and a pre-processor 4 are mounted on the other side of the mounting frame 1. Both ends of the high-pressure pump 2 are connected to quick-clamping devices. Each quick-clamping device includes a connecting pipe 5, a clamping mechanism, a fixing pipe 6, a release sleeve 7, a diameter-changing groove 8, a sealing sleeve 9, and a diameter-changing plate 10. Both ends of the connecting pipe 5 are detachably connected to the fixing pipe 6. The fixing pipe 6 is fixedly connected to one end of the pre-processor 4 and both ends of the high-pressure pump 2. The release sleeve 7 is rotatably mounted on the outside of the fixing pipe 6. The diameter-changing groove 8 is located inside the release sleeve 7. The sealing sleeve 9 is detachably mounted inside the fixing pipe 6. The diameter-changing plate 10 slides within the diameter-changing groove 8. A reinforcing mechanism is mounted on the outside of the fixing pipe 6. The reinforcing mechanism includes a movable block 11, a movable hole 12, and a fixing block. 13. Movable groove 14, limiting rod 15, limiting plate 16, positioning spring 17, positioning block 18, movable plate 19, movable spring 20, positioning sleeve 21, and cylindrical block 22. Movable block 11 is fixedly installed on one side of movable plate 19. Movable hole 12 is opened at one end of movable groove 14. Fixed block 13 is fixedly installed on the outside of fixed tube 6. Movable groove 14 is opened on movable plate 19. Limiting rod 15 is fixedly connected to one side of positioning sleeve 21. Two limiting plates 16 are fixedly installed on limiting rod 15. The two ends of positioning spring 17 are respectively connected to two adjacent positioning blocks 18. Movable plate 19 is rotatably installed on the outside of fixed tube 6. The two ends of movable spring 20 are respectively connected to movable block 11 and fixed block 13. Positioning sleeve 21 is set on the outside of fixed tube 6. Multiple cylindrical blocks 22 are fixedly installed on the outside of fixed tube 6.

[0030] The input terminal of the preprocessor 4 is connected to an input tube 23.

[0031] In this embodiment, when the pipeline needs to be dismantled, maintained, or replaced, the movable plate 19 is first rotated forward. The movable plate 19 drives the movable hole 12 and the movable groove 14 to rotate forward, and the movable plate 19 also drives the movable block 11 installed on one side to rotate forward. Then, the movable block 11 drives the arc-shaped rod 32 on one side to move along the arc-shaped hole 33 opened on the fixed block 13. The movable block 11 cooperates with the fixed block 13 to compress the movable spring 20. When the movable spring 20 is compressed to its limit, the movable hole 12 just rotates to be concentric with the limiting rod 15 and the limiting plate 16. Positioning the position, then pushing the positioning sleeve 21, the positioning sleeve 21 drives the guide block 25 to slide along the guide groove 24, and the positioning sleeve 21 will drive the limiting rod 15 and the limiting plate 16 to gradually pass through the movable hole 12. At the same time, the positioning sleeve 21 and the movable plate 19 cooperate to compress the support spring 29. When the support spring 29 is compressed to its limit, the limiting plate 16 near the positioning sleeve 21 will completely pass through the movable hole 12 and move to the other side of the movable plate 19. Then the movable plate 19 is released, the movable spring 20 pushes the movable block 11 to rotate in the opposite direction, and then the movable block 11 drives the arc-shaped rod 32 along the arc-shaped hole 33. The movement reverses, and the movable block 11 drives the movable groove 14 and movable hole 12 to rotate in the opposite direction via the movable plate 19. Then, the outer wall of the limiting rod 15 contacts the inner wall of one end of the movable groove 14. The limiting rod 15, together with the limiting plate 16, limits the positioning sleeve 21 to one side of the movable plate 19, so that the positioning sleeve 21 no longer limits the outer side of the positioning wheel 28. Then, the sleeve 7 is released in the forward direction. The release sleeve 7 drives the positioning rail 27 to rotate in the forward direction. Then, the positioning rail 27 drives the positioning block 18 and the positioning wheel 28 to rotate in the forward direction via the positioning groove 26. Then, the positioning block 18 drives the positioning wheel 28 at both ends. The cylindrical blocks 22 roll out, and the positioning wheel 28 drives the positioning block 18 to move outward along the positioning rail 27 and the positioning groove 26, so that the positioning block 18 drives the positioning spring 17 to stretch outward. At the same time, the release sleeve 7 drives the inner diameter groove 8 to rotate in the forward direction, so that the diameter plate 10 drives the insertion rod 34 to gradually slide out of the slot 35. Then, the connecting pipe 5 is pulled to one side, so that one end of the connecting pipe 5 can be pulled out from the fixed pipe 6. The connecting pipe 5 is a pipe structure with rigid pipes at both ends and flexible hoses in the middle. Then the connecting pipe 5 can be maintained or replaced.

[0032] Please see Figures 2-5 As a further implementation of the overall equipment: multiple guide grooves 24 are provided on the outer side of the fixed tube 6, and multiple guide blocks 25 are fixed on the inner side of the positioning sleeve 21, with the guide blocks 25 sliding in the guide grooves 24.

[0033] The positioning block 18 has a positioning groove 26, and a plurality of positioning rails 27 are fixed on one side of the release sleeve 7. The positioning groove 26 is adapted to the positioning rails 27. A positioning wheel 28 is rotatably provided on one side of the positioning block 18. The positioning wheel 28 is engaged between two corresponding cylindrical blocks 22.

[0034] A support spring 29 is movably sleeved on the outer side of the limiting rod 15. One end of the support spring 29 is connected to the positioning sleeve 21, and the other end of the support spring 29 is connected to the movable plate 19 in contact.

[0035] The fixed tube 6 has a sealing groove 30, and the connecting tube 5 has multiple sealing rings 31 on the outside. The sealing rings 31 are inserted into the corresponding sealing grooves 30. The sealing sleeve 9 and the sealing rings 31 are both made of rubber.

[0036] An arc-shaped rod 32 is connected to one side of the movable block 11, and an arc-shaped hole 33 is opened in the fixed block 13. One end of the arc-shaped rod 32 slides into the arc-shaped hole 33.

[0037] The snap-fit ​​mechanism includes a plug rod 34 and a slot 35. The plug rod 34 is fixedly connected to one side of the reducing plate 10, and the slot 35 is opened on the outside of the connecting pipe 5. The end of the plug rod 34 and one side of the inner wall of the slot 35 are both chamfered.

[0038] More specifically, after the connecting pipe 5 has been maintained and replaced, one end of the connecting pipe 5 is reinserted into the fixed pipe 6, with the outer wall of the connecting pipe 5 pressing against the sealing sleeve 9. Then, the release sleeve 7 is rotated in the reverse direction. The release sleeve 7 causes the inner diameter-changing groove 8 to rotate in the reverse direction, and then the diameter-changing plate 10 moves in the diameter-changing groove 8. The diameter-changing plate 10 will drive the insert rod 34 to be reinserted into the slot 35. Due to the chamfer design of the end of the insert rod 34 and one side of the inner wall of the slot 35, when the insert rod 34 is fully inserted into the slot 35, the insert rod 34 drives the connecting pipe 5 to press against the sealing sleeve 9 through the slot 35, and causes the multiple sealing rings set on the outside of the connecting pipe 5 to be pressed together. 31 is synchronously inserted into the corresponding sealing groove 30, ensuring the sealing of the connection between the connecting pipe 5 and the fixed pipe 6. At the same time, the positioning rail 27, in conjunction with the positioning groove 26, drives the positioning block 18 to rotate in the opposite direction to the original two cylindrical blocks 22. Then, the positioning spring 17 resets and pulls the positioning block 18 to slide inward along the positioning rail 27 and the positioning groove 26, so that the positioning block 18 drives the positioning wheel 28 to re-engage between the original two cylindrical blocks 22. Then, the movable plate 19 is rotated forward again. The movable plate 19 drives the movable hole 12 and the movable groove 14 to rotate forward, and the movable plate 19 again drives the movable block 11 to rotate forward. The movable block 11 then drives the arc-shaped rod 32 to move forward along the arc-shaped hole 33, and the movable block 11 and the fixed block 13 cooperate again to press the movable spring 20. When the movable hole 12 rotates to the position concentric with the limiting plate 16, the support spring 29 pushes the positioning sleeve 21 to slide back to its original position, so that the positioning sleeve 21 drives the inner guide block 25 to slide back to its original position along the guide groove 24, and the positioning sleeve 21 drives the two limiting plates 16 to slide back to their original position through the limiting rod 15. When the support spring 29 is fully reset, the limiting plate 16 at the top of the limiting rod 15 just moves back to the original side of the movable plate 19. Then the movable plate 19 is released, and the movable spring 20 pushes... The movable block 11 rotates and resets, then the movable block 11 drives the arc rod 32 to reset. The movable block 11 also drives the movable hole 12 and the movable groove 14 to rotate and reset to a position that does not correspond to the limit rod 15 and the limit plate 16 through the movable plate 19. Then the limit rod 15, together with the top limit plate 16, limits and supports the positioning sleeve 21 to one side of the movable plate 19, so that the inner wall of the positioning sleeve 21 limits the outer side of the positioning wheel 28, so that the positioning wheel 28 and the positioning block 18 cannot slide outward, thereby limiting the release sleeve 7 and preventing the release sleeve 7 from rotating, thus ensuring the structural stability of the pipeline connection and ensuring the stable use of the equipment.

[0039] In summary, during the use or operation of the overall equipment: when it is necessary to dismantle, maintain, or replace the pipeline, first rotate the movable plate 19 in the forward direction. The movable plate 19 drives the movable hole 12 and the movable groove 14 to rotate in the forward direction, and the movable plate 19 will drive the movable block 11 installed on one side to rotate in the forward direction. Then, the movable block 11 will drive the arc-shaped rod 32 on one side to move along the arc-shaped hole 33 opened on the fixed block 13. The movable block 11, together with the fixed block 13, compresses the movable spring 20. When the movable spring 20 is compressed to its limit, the movable hole 12 just rotates to the position of the limit rod 15 and the limit. Positioning the plate 16 concentrically, then pushing the positioning sleeve 21, the positioning sleeve 21 drives the guide block 25 to slide along the guide groove 24, and the positioning sleeve 21 will drive the limiting rod 15 and the limiting plate 16 to gradually pass through the movable hole 12. At the same time, the positioning sleeve 21 and the movable plate 19 cooperate to compress the support spring 29. When the support spring 29 is compressed to its limit, the limiting plate 16 near the positioning sleeve 21 will completely pass through the movable hole 12 and move to the other side of the movable plate 19. Then the movable plate 19 is released, the movable spring 20 pushes the movable block 11 to rotate in the opposite direction, and then the movable block 11 drives the arc rod 32 along the arc. The shaped hole 33 moves in the opposite direction, and the movable block 11 drives the movable groove 14 and the movable hole 12 to rotate in the opposite direction through the movable plate 19. Then, the outer wall of the limiting rod 15 will contact the inner wall of one end of the movable groove 14. Then, the limiting rod 15, together with the limiting plate 16, limits the positioning sleeve 21 to one side of the movable plate 19, so that the positioning sleeve 21 no longer limits the outer side of the positioning wheel 28. Then, the sleeve 7 is released in the forward direction. The released sleeve 7 drives the positioning rail 27 to rotate in the forward direction. Then, the positioning rail 27 drives the positioning block 18 and the positioning wheel 28 to rotate in the forward direction through the positioning groove 26. Then, the positioning block 18 drives the positioning wheel 28. The two cylindrical blocks 22 roll out between each other, and the positioning wheel 28 drives the positioning block 18 to move outward along the positioning rail 27 and the positioning groove 26, so that the positioning block 18 drives the positioning spring 17 to stretch outward. At the same time, the release sleeve 7 drives the inner diameter groove 8 to rotate in the forward direction, so that the diameter plate 10 drives the insertion rod 34 to gradually slide out of the slot 35. Then, the connecting pipe 5 is pulled to one side, so that one end of the connecting pipe 5 can be pulled out from the fixed pipe 6. The connecting pipe 5 is a pipe structure with rigid pipes at both ends and flexible hoses in the middle. Then the connecting pipe 5 can be maintained or replaced.

[0040] After the connecting pipe 5 has been maintained and replaced, one end of the connecting pipe 5 is reinserted into the fixed pipe 6, with the outer wall of the connecting pipe 5 pressing against the sealing sleeve 9. Then, the release sleeve 7 is rotated in the reverse direction. The release sleeve 7 causes the inner diameter-changing groove 8 to rotate in the reverse direction, and then the diameter-changing plate 10 moves in the diameter-changing groove 8. The diameter-changing plate 10 will also cause the insertion rod 34 to be reinserted into the slot 35. Due to the chamfer design of the end of the insertion rod 34 and one side of the inner wall of the slot 35, when the insertion rod 34 is fully inserted into the slot 35, the insertion rod 34 drives the connecting pipe 5 to press against the sealing sleeve 9 through the slot 35, and causes the multiple sealing rings 31 set on the outside of the connecting pipe 5 to be synchronously pressed. The positioning block 18 is inserted into the corresponding sealing groove 30, ensuring the sealing of the connection between the connecting pipe 5 and the fixed pipe 6. Simultaneously, the positioning rail 27, in conjunction with the positioning groove 26, drives the positioning block 18 to rotate in the opposite direction between the two original cylindrical blocks 22. Then, the positioning spring 17 resets, pulling the positioning block 18 to slide inward along the positioning rail 27 and the positioning groove 26, causing the positioning block 18 to drive the positioning wheel 28 to re-engage between the two original cylindrical blocks 22. Then, the movable plate 19 is rotated forward again, causing the movable hole 12 and the movable groove 14 to rotate forward. The movable plate 19 also drives the movable block 11 to rotate forward again. Block 11 again drives the arc-shaped rod 32 to move forward along the arc-shaped hole 33, and the movable block 11 cooperates with the fixed block 13 to press the movable spring 20. When the movable hole 12 rotates to the position concentric with the limiting plate 16, the support spring 29 pushes the positioning sleeve 21 to slide back to its original position, so that the positioning sleeve 21 drives the inner guide block 25 to slide back to its original position along the guide groove 24, and the positioning sleeve 21 drives the two limiting plates 16 to slide back to their original position through the limiting rod 15. When the support spring 29 is fully reset, the limiting plate 16 at the top of the limiting rod 15 just moves back to the original side of the movable plate 19. Then the movable plate 19 is released, and the movable spring 20 pushes the movable plate 19 to slide back to its original position. The movable block 11 rotates and resets, and then the movable block 11 drives the arc rod 32 to reset. The movable block 11 also drives the movable hole 12 and the movable groove 14 to rotate and reset to a position that does not correspond to the limit rod 15 and the limit plate 16 through the movable plate 19. Then, the limit rod 15, together with the top limit plate 16, limits and supports the positioning sleeve 21 to one side of the movable plate 19, so that the inner wall of the positioning sleeve 21 limits the outer side of the positioning wheel 28, so that the positioning wheel 28 and the positioning block 18 cannot slide outward, thereby limiting the release sleeve 7 and preventing the release sleeve 7 from rotating, thus ensuring the structural stability of the pipeline connection and ensuring the stable use of the equipment.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A two-stage reverse osmosis unit, comprising a mounting frame (1), a high-pressure pump (2) on one side of the mounting frame (1), and a reverse osmosis unit (3) and a pre-processor (4) mounted on one side of the mounting frame (1), characterized in that: The high-pressure pump (2) is connected to quick-clamping devices at both ends. The quick-clamping devices include a connecting pipe (5), a clamping mechanism, a fixing pipe (6), a release sleeve (7), a diameter changing groove (8), a sealing sleeve (9), and a diameter changing plate (10). The release sleeve (7) is installed on the outside of the fixing pipe (6), the diameter changing groove (8) is opened on the inside of the release sleeve (7), the sealing sleeve (9) is installed on the inside of the fixing pipe (6), and the diameter changing plate (10) is located in the diameter changing groove (8). A reinforcing mechanism is installed on the outside of the fixing pipe (6). The reinforcing mechanism includes a movable block (11), a movable hole (12), a fixing block (13), a movable groove (14), and a limiting rod (15). The system includes a limiting plate (16), a positioning spring (17), a positioning block (18), a movable plate (19), a movable spring (20), a positioning sleeve (21), and a cylindrical block (22). The movable hole (12) is opened at one end of the movable groove (14), the movable groove (14) is opened on the movable plate (19), the limiting rod (15) is connected to one side of the positioning sleeve (21), two limiting plates (16) are installed on the limiting rod (15), the positioning spring (17) is connected to two adjacent positioning blocks (18), the movable spring (20) is connected to the movable block (11) and the fixed block (13), and multiple cylindrical blocks (22) are installed on the outside of the fixed tube (6).

2. The two-stage reverse osmosis unit according to claim 1, characterized in that: The input end of the preprocessor (4) is connected to an input tube (23).

3. The two-stage reverse osmosis unit according to any one of claims 1 or 2, characterized in that: Multiple guide grooves (24) are provided on the outside of the fixed tube (6), and multiple guide blocks (25) are fixed on the inside of the positioning sleeve (21). The guide blocks (25) slide in the guide grooves (24).

4. The two-stage reverse osmosis unit of claim 3, wherein: The positioning block (18) has a positioning groove (26), and the release sleeve (7) has multiple positioning rails (27) fixed on one side. The positioning groove (26) is adapted to the positioning rails (27). The positioning block (18) has a positioning wheel (28) rotating on one side. The positioning wheel (28) is engaged between two corresponding cylindrical blocks (22).

5. The two-stage reverse osmosis unit of claim 4, wherein: The limiting rod (15) is movably sleeved with a support spring (29). One end of the support spring (29) is connected to the positioning sleeve (21), and the other end of the support spring (29) is connected to the movable plate (19) in contact.

6. The two-stage reverse osmosis unit of claim 1, wherein: The fixed tube (6) has a sealing groove (30), and the connecting tube (5) has multiple sealing rings (31) on its outer side. The sealing rings (31) are inserted into the corresponding sealing grooves (30). The sealing sleeve (9) and the sealing rings (31) are both made of rubber.

7. The two-stage reverse osmosis unit of claim 5, wherein: An arc-shaped rod (32) is connected to one side of the movable block (11), and an arc-shaped hole (33) is opened in the fixed block (13). One end of the arc-shaped rod (32) slides into the arc-shaped hole (33).

8. The two-stage reverse osmosis unit of claim 6, wherein: The snap-fit ​​mechanism includes a plug (34) and a slot (35). The plug (34) is fixedly connected to one side of the variable diameter plate (10), and the slot (35) is opened on the outside of the connecting pipe (5). The end of the plug (34) and one side of the inner wall of the slot (35) are both chamfered.

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