A seawater-driven two-stage compression fresh water purification device

Abstract

The present invention provides a seawater-driven two-stage compression fresh water purification device, which includes a box body. The cross-section of the box body is circular. A plurality of T-shaped boxes communicating with the box body are annularly and equidistantly installed on the outer surface of the box body. A hollow pin shaft vertically arranged and slidably connected to the box body is installed at the middle position inside the box body. A plurality of first-stage compression members for desalinating seawater, the same number as that of the T-shaped boxes, are evenly installed inside the box body. A driving member for providing power to the first-stage compression members is installed inside the T-shaped boxes. A tray that is clamped with the pin shaft and slides relatively along the length direction of the pin shaft is sleeved on the pin shaft. A second-stage compression member for desalinating seawater is installed on the upper surface of the tray. A water storage tank communicating with the second-stage compression member for collecting fresh water is arranged directly below the box body. The present invention has the following beneficial effects: realizing that the power for desalinating seawater comes from the wave energy of seawater, and the seawater can be purified without too much manual operation.

Description

Technical Field

[0001] The present invention is a seawater-driven two-stage compression fresh water purification device, belonging to the field of seawater purification. Background Art

[0002] Water plays an important role in our lives. It is the source of life and one of the most important indispensable material resources for human survival and development. The current methods for filtering seawater include seawater freezing method, electrodialysis method, distillation method, reverse osmosis method, etc. The most commonly used filtering method at present is the reverse osmosis method. The reverse osmosis seawater desalination technology uses a reverse osmosis membrane to separate the water and salt in seawater. On one side of the reverse osmosis membrane is a semi-permeable membrane through which the solvent can pass while the solute cannot. On the other side of the reverse osmosis membrane, high pressure is applied to the incoming seawater, then a part of the pure water in the seawater will pass through the reverse osmosis membrane to reach the other side, producing fresh water, and the salt is discharged with the concentrated water. The pressure source of the reverse osmosis method is generally driven by electricity and requires a continuous pressure source provided artificially. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a seawater-driven two-stage compression fresh water purification device to solve the problems put forward in the above background art.

[0004] To achieve the above purpose, the present invention is realized through the following technical solutions: A seawater-driven two-stage compression fresh water purification device includes a box body. The cross-section of the box body is circular. A plurality of T-shaped boxes communicated with the box body are annularly and equidistantly installed on the outer surface of the box body. A box cover is installed at the upper end of the box body. A plurality of top covers for blocking the T-shaped boxes are annularly and equidistantly installed on the outer surface of the box cover. A vertically arranged hollow pin shaft slidably connected to the box body is installed in the middle of the box body. A plurality of first-stage compression members for desalinating seawater, the same number as the T-shaped boxes, are evenly installed in the box body. A driving member for providing power to the first-stage compression members is installed in the T-shaped box. The upper end of the pin shaft extends above the box cover. A tray that is clamped with the pin shaft and slides relatively along the length direction of the pin shaft is sleeved on the pin shaft. A second-stage compression member for desalinating seawater is installed on the upper surface of the tray. A water storage tank for collecting fresh water and communicated with the second-stage compression member is arranged directly below the box body. A plurality of connecting rods are evenly installed on the upper surface of the water storage tank, and the upper ends of the connecting rods are fixedly connected to the pin shaft.

[0005] Further, the primary compression member includes a primary compression cylinder. The same number of primary compression cylinders as the number of T-shaped boxes are evenly installed in the box body. The primary compression cylinders are arranged along the radial direction of the box body. A first one-way valve that conducts towards the primary compression cylinder is installed on the side of the primary compression cylinder away from the pin shaft. The other end of the first one-way valve is installed with a water suction pipe. The end of the water suction pipe away from the first one-way valve extends through the box body and extends to the lower side of the box body. A primary osmotic membrane for desalinating seawater is installed on the side of the primary compression cylinder close to the first one-way valve. A primary piston is slidably installed in the primary compression cylinder. A primary compression rod is fixedly connected to the middle position of the side of the primary piston facing away from the primary osmotic membrane. The end of the primary compression rod away from the primary piston extends to the outside of the primary compression cylinder and is slidably connected to the driving member. Two second one-way valves that conduct away from the primary compression cylinder are installed on the outer surface of the end of the primary compression cylinder close to the first one-way valve. The other end of the second one-way valve away from the primary compression cylinder is installed with a connecting pipe. The end of the connecting pipe away from the second one-way valve is connected and communicated with the primary water storage tank. The primary water storage tank is installed in the box body. A hose is installed at the lower position of the outer surface of the primary water storage tank. The other end of the hose extends into the pin shaft and is connected and communicated with the secondary water inlet pipe. The secondary water inlet pipe penetrates the pin shaft. The end of the secondary water inlet pipe away from the hose is connected and communicated with the secondary compression member.

[0006] Further, the driving member includes a large gear, and a large gear that slides along the length direction of the pin shaft and is clamped with the pin shaft is sleeved on the pin shaft. The large gear is arranged inside the box body. A cam sleeved on the pin shaft is installed on the upper surface of the large gear. An elliptical groove is formed on the upper surface of the cam. The first-stage compression rod is of an L-shaped structure. One end of the first-stage compression rod away from the first-stage piston is slidably installed in the elliptical groove. A plurality of small gears with the same number as the T-shaped boxes are meshed around the large gear. The small gears are rotatably installed in circular openings. The circular openings are formed on one side of the rectangular frame facing the large gear. One end of the rectangular frame away from the small gears extends into the T-shaped box. A connecting plate is fixedly connected to one side of the rectangular frame away from the circular opening. One end of the connecting plate away from the rectangular frame is fixedly connected to a bracket. Two symmetrically arranged bushings are fixedly connected inside the bracket. A transmission shaft is rotatably installed inside the bushing. One end of the transmission shaft extends outside the T-shaped box and is provided with a blade through an adjusting member. A middle gear meshing with the small gear is arranged inside the rectangular frame. Crank rods are fixedly connected to the middle positions of two parallel side surfaces of the middle gear. The crank rods are of an L-shaped structure. One end of the crank rod away from the middle gear is fixedly connected to a clamping head. The clamping head is slidably installed in a limiting groove. The limiting groove is formed on one side of the guide rail facing the middle gear. The guide rail is in sliding contact with the inner wall of the rectangular frame. A connecting rod is fixedly connected to the middle position of one side of the guide rail. Two symmetrically arranged limiting rods are symmetrically fixedly connected to the outer surface of the connecting rod. One end of the limiting rod away from the connecting rod penetrates into a strip-shaped groove. A disk head in sliding contact with the rectangular frame is fixedly connected to one end of the limiting rod away from the connecting rod. Strip-shaped grooves arranged along the length direction of the rectangular frame are formed on two adjacent side surfaces of the rectangular frame and the circular opening. The strip-shaped grooves are perpendicular to the guide rail. A linkage rod parallel to the guide rail is fixedly connected to one end of the connecting rod away from the guide rail. Driving rods perpendicular to the linkage rod are fixedly connected to both ends of the linkage rod. Two L-shaped rods are symmetrically fixedly connected to one end of the transmission shaft inside the bracket. One end of the L-shaped rod away from the transmission shaft is rotatably connected to one end of the driving rod away from the linkage rod.

[0007] Further, the adjusting member includes a steering gear. A steering gear is installed on the outer surface of the T-shaped box. A driving plate is fixedly connected to the output end of the steering gear. First driving arms are rotatably connected to both ends of the driving plate. A second driving arm is rotatably connected to one end of the first driving arm away from the driving plate. One end of the second driving arm away from the first driving arm is fixedly connected to the blade. The steering gear is electrically connected to a plurality of solar panels that supply electrical energy to the steering gear through wires. The plurality of solar panels are evenly installed on the outer surface of the conical cylinder shell.

[0008] Further, the secondary compression member includes a secondary compression cylinder. The upper surface of the support plate is provided with a secondary compression cylinder. The secondary compression cylinder is installed in a conical cylinder shell. The lower end of the cylinder shell is open and fixedly connected to the support plate. The upper surface of the secondary compression cylinder is installed with a fourth one-way valve that conducts in the direction of the secondary compression cylinder. The end of the secondary water inlet pipe away from the hose is connected and communicated with the fourth one-way valve. An upper position inside the secondary compression cylinder is installed with a secondary osmotic membrane for desalinating seawater. Below the secondary osmotic membrane is provided with a third one-way valve that conducts in the direction away from the secondary compression cylinder. The third one-way valve is installed on the outer surface of the secondary compression cylinder and communicates with the secondary compression cylinder. One end of the third one-way valve away from the secondary compression cylinder is installed with a drain pipe. The end of the drain pipe away from the third one-way valve penetrates through the pin shaft and is connected and communicated with the water storage tank. Below the secondary osmotic membrane is provided with a secondary piston. The secondary piston is slidably installed inside the secondary compression cylinder. The middle position of the lower surface of the secondary piston is fixedly connected with a secondary compression rod. The lower end of the secondary compression rod extends to the outside of the secondary compression cylinder and is rotatably connected with a crankshaft. Both ends of the crankshaft are rotatably connected with supports. The supports are installed on the upper surface of the support plate. Two round rods are rotatably connected to the crankshaft. The lower ends of the round rods penetrate through the guiding holes opened on the upper surface of the support plate and are fixedly connected with the pin shaft.

[0009] Further, a jacket fixedly connected to the primary compression cylinder is sleeved on the outer surface of the primary compression cylinder. The lower position of the outer surface of the jacket is fixedly connected with a vertical rod. The lower end of the vertical rod is fixed to the inner bottom of the box body.

[0010] Advantages of the present invention:

[0011] 1. The steering gear is used to drive the driving plate to rotate. The driving plate drives one of the rotating pairs formed by two groups of first driving arms and second driving arms to expand and the other to contract, thereby changing the angle of the blade plate and realizing the adjustment of the blade plate according to the movement direction of the waves.

[0012] 2. Restrict the box body on the water surface and make the blade plates contact the water surface. Under the action of sea waves, the blade plates drive the transmission shaft to rotate within the shaft sleeve of the bracket. When the transmission shaft rotates, it drives the two driving rods on the transmission shaft to move in opposite directions through the L-shaped rod. The driving rods drive the guide rails to move through the linkage rods and connecting rods. At the same time, the connecting rod drives the two limiting rods to slide along the strip-shaped grooves. The two guide rails move in opposite directions. At this time, the two guide rails and the two crank rods cooperate with each other to make the middle gear rotate. The middle gear drives the small gear to rotate. The small gear drives the pin shaft and the cam to rotate at a small angle through the large gear. Since one end of the first-stage compression rod is slidably installed in the elliptical groove opened on the upper surface of the cam, when the cam rotates, it drives the first-stage piston to slide within the first-stage compression cylinder through the first-stage compression rod. When the first-stage piston slides away from the first-stage permeable membrane, under the action of the pressure difference, the first one-way valve opens and the second one-way valve closes. At this time, seawater enters the first-stage compression cylinder through the water suction pipe. When the seawater passes through the first-stage permeable membrane, the first-stage permeable membrane desalinates the seawater. When the first-stage piston slides towards the first-stage permeable membrane, under the action of the pressure difference, the first one-way valve closes and the second one-way valve opens. Thus, the seawater that has been desalinated at the first stage flows into the first-stage water storage tank through the connecting pipe, realizing the first-stage desalination of seawater.

[0013] 3. The water storage tank floats up and down under the action of sea waves. Furthermore, the water storage tank drives the pin shaft to move up and down. During the up and down movement of the pin shaft, it drives the crankshaft to rotate through the two round rods. When the crankshaft rotates, it drives the second-stage piston to slide within the second-stage compression cylinder through the second-stage compression rod. When the second-stage piston slides away from the second-stage permeable membrane, under the action of the pressure difference, the fourth one-way valve opens and the third one-way valve closes. At this time, the water in the first-stage water storage tank enters the second-stage compression cylinder through the channel formed by the hose and the second-stage water inlet pipe. Furthermore, the second-stage permeable membrane desalinates the water for the second time. When the second-stage piston slides towards the second-stage permeable membrane under the action of sea waves, the third one-way valve opens and the fourth one-way valve closes. At this time, the water that has been desalinated for the second time flows into the water storage tank through the drain pipe, realizing that the power source for desalinating seawater is the wave energy of the seawater, and the seawater can be purified without too much manual operation. Connect the water storage tank to the fresh water collection container through the food-grade rubber tube. As the fresh water in the water storage tank increases, under the extrusion of the subsequent fresh water, the fresh water in the water storage tank flows into the fresh water collection container through the rubber tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects, and advantages of the present invention will become more apparent:

[0015] Figure 1 It is a schematic structural diagram of a seawater-driven two-stage compression fresh water purification device of the present invention;

[0016] Figure 2It is the bottom-up perspective three-dimensional view of a seawater-driven two-stage compression fresh water purification device of the present invention;

[0017] Figure 3 It is the assembly schematic diagram of the first-stage compression part, the second-stage compression part, the driving part and the box body in a seawater-driven two-stage compression fresh water purification device of the present invention;

[0018] Figure 4 It is the assembly schematic diagram of the first-stage compression cylinder, the second-stage compression cylinder, the water storage tank, the large gear and the pin shaft in a seawater-driven two-stage compression fresh water purification device of the present invention;

[0019] Figure 5 It is the assembly schematic diagram of the first-stage compression cylinder, the first-stage water storage tank, the water storage tank, the second-stage compression cylinder and the pin shaft in a seawater-driven two-stage compression fresh water purification device of the present invention;

[0020] Figure 6 It is the assembly schematic diagram of the first-stage compression cylinder, the blade and the large gear in a seawater-driven two-stage compression fresh water purification device of the present invention;

[0021] Figure 7 It is the assembly schematic diagram of the blade, the rectangular frame and the bracket in a seawater-driven two-stage compression fresh water purification device of the present invention;

[0022] Figure 8 It is the assembly schematic diagram of the rectangular frame and the bracket in a seawater-driven two-stage compression fresh water purification device of the present invention;

[0023] Figure 9 It is the assembly schematic diagram of the linkage rod, the connecting rod and the guide rail in a seawater-driven two-stage compression fresh water purification device of the present invention;

[0024] Figure 10 It is the assembly schematic diagram of the clamping joint and the crank rod in a seawater-driven two-stage compression fresh water purification device of the present invention;

[0025] Figure 11 It is the assembly schematic diagram of the round rod, the transmission shaft and the blade in a seawater-driven two-stage compression fresh water purification device of the present invention;

[0026] Figure 12 It is the assembly schematic diagram of the first-stage permeable membrane, the first-stage compression rod and the first-stage compression cylinder in a seawater-driven two-stage compression fresh water purification device of the present invention;

[0027] Figure 13 It is the assembly schematic diagram of the second-stage permeable membrane, the second-stage compression rod and the second-stage compression cylinder in a seawater-driven two-stage compression fresh water purification device of the present invention;

[0028] In the figure: 1 - box body, 2 - blade plate, 3 - T-shaped box, 4 - top cover, 5 - box lid, 6 - solar panel, 7 - cylindrical shell, 8 - water storage tank, 9 - connecting rod, 10 - water suction pipe, 11 - pin shaft, 12 - support, 13 - primary compression cylinder, 14 - bracket, 15 - secondary compression cylinder, 16 - secondary water inlet pipe, 17 - supporting plate, 18 - jacket, 19 - primary compression rod, 20 - connecting pipe, 21 - primary water storage tank, 22 - hose, 23 - large gear, 24 - cam, 25 - round rod, 26 - secondary compression rod, 27 - drain pipe, 28 - crankshaft, 29 - small gear, 30 - middle gear, 31 - rectangular frame, 32 - driving rod, 33 - transmission shaft, 34 - bushing, 35 - strip groove, 36 - connecting plate, 37 - round opening, 38 - guide rail, 39 - limiting rod, 40 - steering gear, 41 - driving plate, 42 - first driving arm, 43 - second driving arm, 44 - limiting groove, 45 - connecting rod, 46 - linkage rod, 47 - crank rod, 48 - clamping joint, 49 - vertical rod, 50 - primary piston, 51 - primary osmotic membrane, 52 - first one-way valve, 53 - second one-way valve, 54 - secondary osmotic membrane, 55 - secondary piston, 56 - third one-way valve, 57 - fourth one-way valve, 58 - L-shaped rod. Specific implementation manner

[0029] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0030] Please refer to Figure 1 , the present invention provides a technical solution: a seawater-driven secondary compression fresh water purification device, including a box body 1 with a circular cross-section. A plurality of T-shaped boxes 3 communicating with the box body 1 are annularly and equidistantly installed on the outer surface of the box body 1. A box lid 5 is installed at the upper end of the box body 1. A plurality of top covers 4 for blocking the T-shaped boxes 3 are annularly and equidistantly installed on the outer surface of the box lid 5. The box lid 5 and the top cover 4 jointly form a structure for blocking the box body 1 and the T-shaped boxes 3.

[0031] Refer to Figures 1 - 12, a hollow pin shaft 11 vertically arranged and slidably connected to the box body 1 is installed at the middle position inside the box body 1. A number of first-stage compression cylinders 13 equal to the number of T-shaped boxes 3 are evenly installed inside the box body 1. Among them, the first-stage compression cylinders 13 are arranged along the radial direction of the box body 1. A jacket 18 connected and fixed to the first-stage compression cylinder 13 is sleeved on the outer surface of the first-stage compression cylinder 13. The lower end of the vertical rod 49 connected and fixed to the outer surface of the jacket 18 is fixed to the inner bottom of the box body 1, realizing the limitation of the position of the first-stage compression cylinder 13. The other end of the first one-way valve 52 installed on the side of the first-stage compression cylinder 13 away from the pin shaft 11 and leading to the first-stage compression cylinder 13 is connected to a water suction pipe 10. One end of the water suction pipe 10 away from the first one-way valve 52 extends through the box body 1 and extends to the lower side of the box body 1. A first-stage osmotic membrane 51 for desalinating seawater is installed on one side of the first-stage compression cylinder 13 close to the first one-way valve 52. In the first-stage compression cylinder 13, a first-stage piston 50 is slidably installed, and the middle position of the side of the first-stage piston 50 facing away from the first-stage osmotic membrane 51 is connected and fixed to a first-stage compression rod 19. The end of the L-shaped first-stage compression rod 19 away from the first-stage piston 50 extends to the outside of the first-stage compression cylinder 13 and is slidably installed in an elliptical groove. The two second one-way valves 53 installed on the outer surface of the end of the first-stage compression cylinder 13 close to the first one-way valve 52 and leading away from the first-stage compression cylinder 13 are both connected to a connecting pipe 20 at the end away from the first-stage compression cylinder 13. Among them, one end of the connecting pipe 20 away from the second one-way valve 53 is connected and communicated with a first-stage water storage tank 21 installed inside the box body 1. A large gear 23 located inside the box body 1 and slidable along the length direction of the pin shaft 11 and clamped with the pin shaft 11 is sleeved on the pin shaft 11. A cam 24 sleeved on the pin shaft 11 is installed on the upper surface of the large gear 23. An elliptical groove is opened on the upper surface of the cam 24. A number of small gears 29 equal to the number of T-shaped boxes 3 are meshed around the large gear 23. The small gears 29 are rotatably installed in circular openings 37 opened on one side of a rectangular frame 31 facing the large gear 23. One end of the rectangular frame 31 away from the small gear 29 extends into the T-shaped box 3. The end of the connecting plate 36 connected and fixed to the side of the rectangular frame 31 away from the circular opening 37 away from the rectangular frame 31 is connected to a fixing bracket 14, and a transmission shaft 33 is rotatably installed in two symmetrically arranged bushing sleeves 34 connected and fixed inside the fixing bracket 14. One end of the transmission shaft 33 extends to the outside of the T-shaped box 3 and is installed with a blade 2. A middle gear 30 meshing with the small gear 29 is arranged inside the rectangular frame 31. L-shaped crank rods 47 are connected and fixed to the middle positions of two parallel side surfaces of the middle gear 30. The end of the crank rod 47 away from the middle gear 30 is connected and fixed to a clamping head 48 slidably installed in a limiting groove 44 opened on one side of a guide rail 38 facing the middle gear 30. The guide rail 38 is in sliding contact with the inner wall of the rectangular frame 31. Two symmetrically arranged limiting rods 39 are symmetrically connected and fixed to the outer surface of a connecting rod 45 connected and fixed to the middle position of one side of the guide rail 38. The end of the limiting rod 39 away from the connecting rod 45 penetrates through a strip-shaped groove 35, and the end of the limiting rod 39 away from the connecting rod 45 is connected and fixed to a disc head in sliding contact with the rectangular frame 31.On two side surfaces of the rectangular frame 31 adjacent to the circular opening 37, strip-shaped grooves 35 are provided along the length direction of the rectangular frame 31 and are arranged perpendicular to the guide rail 38. One end of the connecting rod 45 far from the guide rail 38 is fixedly connected with a linkage rod 46 arranged parallel to the guide rail 38. Both ends of the linkage rod 46 are fixedly connected with driving rods 32 arranged perpendicular to the linkage rod 46. One end of the transmission shaft 33 inside the bracket 14 is symmetrically and fixedly connected with two L-shaped rods 58. The end of the L-shaped rod 58 far from the transmission shaft 33 is rotatably connected with the end of the driving rod 32 far from the linkage rod 46, restricting the box body 1 on the water surface and making the blade 2 contact with the water surface. Under the action of the sea waves, the blade 2 drives the transmission shaft 33 to rotate in the bushing 34 in the bracket 14. When the transmission shaft 33 rotates, it drives the two driving rods 32 on the transmission shaft 33 to move in opposite directions through the L-shaped rods 58. The driving rod 32 drives the guide rail 38 to move through the linkage rod 46 and the connecting rod 45. At the same time, the connecting rod 45 drives the two limiting rods 39 to slide along the strip-shaped grooves 35. The two guide rails 38 move in opposite directions. At this time, the two guide rails 38 and the two crank rods 47 cooperate with each other to make the middle gear 30 rotate. The middle gear 30 drives the small gear 29 to rotate. The small gear 29 drives the pin shaft 11 and the cam 24 to rotate at a small angle through the large gear 23. Since one end of the first compression rod 19 is slidably installed in the elliptical groove opened on the upper surface of the cam 24, the rotating cam 24 drives the first piston 50 to slide in the first compression cylinder 13 through the first compression rod 19. When the first piston 50 slides away from the first osmotic membrane 51, under the action of the pressure difference, the first one-way valve 52 opens and the second one-way valve 53 closes. At this time, seawater enters the first compression cylinder 13 through the water suction pipe 10. When the seawater passes through the first osmotic membrane 51, the first osmotic membrane 51 desalinates the seawater. When the first piston 50 slides towards the first osmotic membrane 51, under the action of the pressure difference, the first one-way valve 52 closes and the second one-way valve 53 opens. Thus, the seawater after the first-stage desalination flows into the first water storage tank 21 through the connecting pipe 20, realizing the first-stage desalination of seawater.

[0032] Refer to Figure 1 、 Figure 7 and Figure 11 On the outer surface of the T-shaped box 3, the output end of the servo motor 40 installed is fixedly connected with a driving plate 41. Both ends of the driving plate 41 are rotatably connected with a first driving arm 42. The end of the first driving arm 42 far from the driving plate 41 is rotatably connected with a second driving arm 43. The end of the second driving arm 43 far from the first driving arm 42 is fixedly connected with the blade 2. The servo motor 40 is electrically connected with a plurality of solar panels 6 that supply electrical energy to the servo motor 40 through wires. The plurality of solar panels 6 are evenly installed on the outer surface of the conical cylinder shell 7. By using the servo motor 40 to drive the driving plate 41 to rotate, the driving plate 41 drives one of the rotating pairs formed by the two groups of first driving arms 42 and second driving arms 43 to expand and the other to contract, thereby changing the angle of the blade 2 and realizing the adjustment of the blade 2 according to the movement direction of the sea waves.

[0033] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 13, extend the upper end of the pin shaft 11 to the upper side of the box cover 5. A pallet 17 that is snap-fitted with the pin shaft 11 and slides relative to the pin shaft 11 along the length direction of the pin shaft 11 is sleeved on the pin shaft 11. A secondary compression cylinder 15 is provided on the upper surface of the pallet 17. The secondary compression cylinder 15 is installed in the conical cylinder shell 7. The lower end of the cylinder shell 7 is open and is fixedly connected to the pallet 17. A fourth one-way valve 57 that conducts towards the secondary compression cylinder 15 is installed on the upper surface of the secondary compression cylinder 15. One end of the secondary water inlet pipe 16 far from the hose 22 is connected and communicated with the fourth one-way valve 57. A secondary osmotic membrane 54 for desalinating seawater is installed at the upper part inside the secondary compression cylinder 15. A third one-way valve 56 that conducts away from the secondary compression cylinder 15 is provided below the secondary osmotic membrane 54. The third one-way valve 56 is installed on the outer surface of the secondary compression cylinder 15 and is communicated with the secondary compression cylinder 15. One end of the third one-way valve 56 far from the secondary compression cylinder 15 is installed with a drain pipe 27. One end of the drain pipe 27 far from the third one-way valve 56 penetrates through the pin shaft 11 and is connected and communicated with the water storage tank 8. A secondary piston 55 that is slidably installed inside the secondary compression cylinder 15 is provided below the secondary osmotic membrane 54. The lower end of the secondary compression rod 26 fixedly connected to the middle position of the lower surface of the secondary piston 55 extends to the outside of the secondary compression cylinder 15 and is rotatably connected to the crankshaft 28. Both ends of the crankshaft 28 are rotatably connected to a support 12 fixedly connected to the upper surface of the pallet 17. The support 12 realizes the support of the crankshaft 28, so that the lower ends of two round rods 25 rotatably connected to the crankshaft 28 respectively penetrate through two guide holes opened on the upper surface of the pallet 17 and are fixedly connected to the pin shaft 11. The upper ends of a plurality of connecting rods 9 evenly installed on the upper surface of the water storage tank 8 for collecting fresh water directly below the box body 1 are fixedly connected to the pin shaft 11, so that the relative positions of the water storage tank 8 and the pin shaft 11 remain unchanged. The other end of the hose 22 installed at the lower part of the outer surface of the primary water storage tank 21 extends into the pin shaft 11 and is connected and communicated with the secondary water inlet pipe 16 that penetrates through the pin shaft 11. One end of the secondary water inlet pipe 16 far from the hose 22 is installed on and communicated with the upper surface of the secondary compression cylinder 15. The water storage tank 8 floats up and down under the action of the sea waves. Then the water storage tank 8 drives the pin shaft 11 to move up and down. During the up and down movement of the pin shaft 11, the crankshaft 28 is driven to rotate through the two round rods 25. When the crankshaft 28 rotates, the secondary piston 55 is driven to slide inside the secondary compression cylinder 15 through the secondary compression rod 26. When the secondary piston 55 slides away from the secondary osmotic membrane 54, the fourth one-way valve 57 opens and the third one-way valve 56 closes under the action of the pressure difference. At this time, the water in the primary water storage tank 21 enters the secondary compression cylinder 15 through the channel formed by the hose 22 and the secondary water inlet pipe 16. Then the secondary osmotic membrane 54 desalinates the water for the second time. When the secondary piston 55 slides towards the secondary osmotic membrane 54 under the action of the sea waves, the third one-way valve 56 opens and the fourth one-way valve 57 closes. At this time, the water that has been desalinated for the second time flows into the water storage tank 8 through the drain pipe 27, realizing that the power source for desalinating seawater comes from the wave energy of the seawater.The seawater can be purified without too much manual operation. The water storage tank 8 is connected to the fresh water collection container through a food-grade rubber tube. As the fresh water in the water storage tank 8 increases, under the extrusion of the subsequent fresh water, the fresh water in the water storage tank 8 flows into the fresh water collection container through the rubber tube.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

[0035] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A seawater-driven two-stage compressed fresh water purification device, comprising a box body (1), characterized in that: The cross-section of the box body (1) is circular, and a plurality of T-shaped boxes (3) communicated with the box body (1) are equidistantly installed on the outer surface of the box body (1) in a ring shape. A box cover (5) is installed at the upper end of the box body (1), and a plurality of top covers (4) for blocking the T-shaped boxes (3) are equidistantly installed on the outer surface of the box cover (5) in a ring shape. A hollow pin shaft (11) vertically arranged and slidably connected to the box body (1) is installed at the middle position inside the box body (1). Inside the box body (1), a plurality of first-stage compression parts for desalinating seawater with the same number as the T-shaped boxes (3) are evenly installed. A driving part for providing power to the first-stage compression parts is installed inside the T-shaped box (3). The upper end of the pin shaft (11) extends above the box cover (5). A support plate (17) that is clamped with the pin shaft (11) and slides relatively along the length direction of the pin shaft (11) is sleeved on the pin shaft (11). A second-stage compression part for desalinating seawater is installed on the upper surface of the support plate (17). A water storage tank (8) for collecting fresh water and communicated with the second-stage compression part is arranged directly below the box body (1). A plurality of connecting rods (9) are evenly installed on the upper surface of the water storage tank (8), and the upper ends of the connecting rods (9) are fixedly connected to the pin shaft (11); The primary compression member includes a primary compression cylinder (13). A number of primary compression cylinders (13) equal to the number of T-shaped boxes (3) are evenly installed in the box body (1). The primary compression cylinders (13) are arranged along the radial direction of the box body (1). A first one-way valve (52) that conducts towards the primary compression cylinder (13) is installed on the side of the primary compression cylinder (13) away from the pin shaft (11). The other end of the first one-way valve (52) is installed with a water suction pipe (10). The end of the water suction pipe (10) away from the first one-way valve (52) extends through the box body (1) and extends to the lower side of the box body (1). A primary osmotic membrane (51) for desalinating seawater is installed on one side of the primary compression cylinder (13) close to the first one-way valve (52). A primary piston (50) is slidably installed in the primary compression cylinder (13). A middle position on the side of the primary piston (50) facing away from the primary osmotic membrane (51) is fixedly connected with a primary compression rod (19). The end of the primary compression rod (19) away from the primary piston (50) extends to the outside of the primary compression cylinder (13) and is slidably connected with the driving member. Two second one-way valves (53) that conduct away from the primary compression cylinder (13) are installed on the outer surface of the end of the primary compression cylinder (13) close to the first one-way valve (52). The end of the second one-way valve (53) away from the primary compression cylinder (13) is installed with a connecting pipe (20). The end of the connecting pipe (20) away from the second one-way valve (53) is connected and communicated with a primary water storage tank (21). The primary water storage tank (21) is installed in the box body (1). A flexible pipe (22) is installed at the lower position on the outer surface of the primary water storage tank (21). The other end of the flexible pipe (22) extends into the pin shaft (11) and is connected and communicated with a secondary water inlet pipe (16). The secondary water inlet pipe (16) penetrates through the pin shaft (11). The end of the secondary water inlet pipe (16) away from the flexible pipe (22) is connected and communicated with the secondary compression member; The driving member includes a large gear (23). A large gear (23) that slides along the length direction of the pin shaft (11) and is clamped with the pin shaft (11) is sleeved on the pin shaft (11). The large gear (23) is arranged inside the box body (1). A cam (24) sleeved on the pin shaft (11) is installed on the upper surface of the large gear (23). An elliptical groove is formed on the upper surface of the cam (24). The first-stage compression rod (19) is of an L-shaped structure. One end of the first-stage compression rod (19) far from the first-stage piston (50) is slidably installed in the elliptical groove. A plurality of small gears (29) with the same number as the T-shaped boxes (3) are meshed around the large gear (23). The small gears (29) are rotatably installed in circular openings (37). The circular openings (37) are formed on one side of the rectangular frame (31) facing the large gear (23). One end of the rectangular frame (31) far from the small gear (29) extends into the T-shaped box (3). A connecting plate (36) is fixedly connected to one side of the rectangular frame (31) far from the circular opening (37). One end of the connecting plate (36) far from the rectangular frame (31) is fixedly connected to a bracket (14). Two symmetrically arranged bushings (34) are fixedly connected inside the bracket (14). A transmission shaft (33) is rotatably installed inside the bushing (34). One end of the transmission shaft (33) extends to the outside of the T-shaped box (3) and is provided with a blade (2) through an adjusting member. A middle gear (30) meshing with the small gear (29) is arranged inside the rectangular frame (31). Crank rods (47) are fixedly connected to the middle positions of two parallel sides of the middle gear (30). The crank rods (47) are of an L-shaped structure. One end of the crank rod (47) far from the middle gear (30) is fixedly connected to a clamping head (48). The clamping head (48) is slidably installed in a limiting groove (44). The limiting groove (44) is formed on one side of the guide rail (38) facing the middle gear (30). The guide rail (38) is in sliding contact with the inner wall of the rectangular frame (31). A connecting rod (45) is fixedly connected to the middle position of one side of the guide rail (38). Two symmetrically arranged limiting rods (39) are symmetrically fixedly connected to the outer surface of the connecting rod (45). One end of the limiting rod (39) far from the connecting rod (45) penetrates into a strip-shaped groove (35). One end of the limiting rod (39) far from the connecting rod (45) is fixedly connected to a disc head in sliding contact with the rectangular frame (31). Strip-shaped grooves (35) arranged along the length direction of the rectangular frame (31) are formed on two adjacent sides of the rectangular frame (31) adjacent to the circular opening (37). The strip-shaped grooves (35) are perpendicular to the guide rail (38). One end of the connecting rod (45) far from the guide rail (38) is fixedly connected to a linkage rod (46) arranged parallel to the guide rail (38). Driving rods (32) perpendicular to the linkage rod (46) are fixedly connected to both ends of the linkage rod (46). Two L-shaped rods (58) are symmetrically fixedly connected to one end of the transmission shaft (33) inside the bracket (14).One end of the L-shaped rod (58) far from the transmission shaft (33) is rotatably connected to one end of the driving rod (32) far from the linkage rod (46).

2. The seawater-driven two-stage compression fresh water purification device according to claim 1, characterized in that: The adjusting member includes a steering gear (40). A steering gear (40) is installed on the outer surface of the T-shaped box (3). The output end of the steering gear (40) is fixedly connected with a driving plate (41). Both ends of the driving plate (41) are rotatably connected with a first driving arm (42). The end of the first driving arm (42) away from the driving plate (41) is rotatably connected with a second driving arm (43). The end of the second driving arm (43) away from the first driving arm (42) is fixedly connected with a blade (2). The steering gear (40) is electrically connected to a plurality of solar panels (6) that supply electrical energy to the steering gear (40) through wires. The plurality of solar panels (6) are evenly installed on the outer surface of the conical cylinder shell (7).

3. The seawater-driven two-stage compression fresh water purification device according to claim 1, characterized in that: The secondary compression member includes a secondary compression cylinder (15). The upper surface of the support plate (17) is provided with the secondary compression cylinder (15). The secondary compression cylinder (15) is installed in the conical cylinder shell (7). The lower end of the cylinder shell (7) is open and is fixedly connected to the support plate (17). The upper surface of the secondary compression cylinder (15) is installed with a fourth one-way valve (57) that conducts in the direction of the secondary compression cylinder (15). One end of the secondary water inlet pipe (16) far from the hose (22) is connected and communicated with the fourth one-way valve (57). An upper position inside the secondary compression cylinder (15) is installed with a secondary osmotic membrane (54) for desalinating seawater. Below the secondary osmotic membrane (54) is provided with a third one-way valve (56) that conducts in the direction away from the secondary compression cylinder (15). The third one-way valve (56) is installed on the outer surface of the secondary compression cylinder (15) and is communicated with the secondary compression cylinder (15). One end of the third one-way valve (56) far from the secondary compression cylinder (15) is installed with a drain pipe (27). One end of the drain pipe (27) far from the third one-way valve (56) penetrates through the pin shaft (11) and is connected and communicated with the water storage tank (8). Below the secondary osmotic membrane (54) is provided with a secondary piston (55). The secondary piston (55) is slidably installed in the secondary compression cylinder (15). The middle position of the lower surface of the secondary piston (55) is fixedly connected with a secondary compression rod (26). The lower end of the secondary compression rod (26) extends to the outside of the secondary compression cylinder (15) and is rotatably connected with a crankshaft (28). Both ends of the crankshaft (28) are rotatably connected with a support (12). The support (12) is installed on the upper surface of the support plate (17). Two round rods (25) are rotatably connected to the crankshaft (28). The lower ends of the round rods (25) penetrate through the guide holes opened on the upper surface of the support plate (17) and are fixedly connected with the pin shaft (11).

4. A seawater-driven secondary compression fresh water purification device according to claim 1, characterized in that: A jacket (18) fixedly connected to the primary compression cylinder (13) is sleeved on the outer surface of the primary compression cylinder (13). A vertical rod (49) is fixedly connected to a lower position on the outer surface of the jacket (18). The lower end of the vertical rod (49) is fixed to the inner bottom of the box body (1).

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