Automatic cleaning device for seawater intake grille

Abstract

The present application relates to seawater intake grille technical field, especially to a kind of seawater intake grille automatic cleaning device, comprising: the cleaning component for cleaning intake grille, and drive to make the cleaning component move along the transmission device of intake grille by intake flow;The transmission device includes: the first transmission member driven by flow to rotate around first axis direction;One end is drivingly connected with the first transmission member to rotate around second axis direction second transmission member;With the other end of second transmission member drivingly connected to rotate around third axis direction third transmission member;The first axis direction is parallel with second axis direction, and the third axis direction is perpendicular to first axis direction and second axis direction;The cleaning component is threadedly connected with the third transmission member, to move along the intake grille when third transmission member rotates.

Description

Technical Field

[0001] The present invention relates to the technical field of seawater intake grids, and in particular to an automatic cleaning device for seawater intake grids. Background Art

[0002] Seawater intake is an essential auxiliary facility for coastal thermal power plants, chemical plants, desalination plants, etc. In order to ensure the water quality and prevent marine life from being sucked into the water intake structure due to excessive flow rate, seawater intake is often achieved by setting up a water intake head in the deep sea and transporting the water to the plant through pipelines.

[0003] To prevent the intrusion of marine life at the water intake, in addition to controlling the water flow rate, a water intake grille should be installed at the water intake window to intercept the active invasion of large marine life. Because the water intake grille is submerged year-round, it is inevitable that marine life, especially shellfish, will attach and grow on the water intake grille. The attachment of marine life on the grille not only affects the water quality, but also further increases the water flow rate at the grille due to the reduction of the water flow cross-section. This not only poses a further danger to marine life but also has a serious impact on the structural safety of the structure itself.

[0004] To prevent marine organisms from attaching to water intake grates, a common practice is to apply chlorine-containing chemicals at the water inlet. For example, Chinese patent publication number CN103556673B discloses a multifunctional seawater intake head with an internal biocide inlet channel. The sidewalls of the biocide inlet channel have biocide diffusion holes connected to the interior of the reinforced concrete barrel, preventing marine organisms from attaching and clogging the intake head. While this approach inhibits or delays the attachment of marine organisms to a certain extent, the toxicity of chlorine-containing chemicals can lead to pollution of the water environment and compromised water quality.

[0005] Therefore, there is an urgent need for an automatic cleaning device for seawater intake grids that can spontaneously and periodically clean the water intake grids to prevent marine organisms from attaching to the water intake grids, affecting the water flow rate and thus affecting the water quality. Summary of the Invention

[0006] (1) Technical issues to be resolved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an automatic cleaning device for a seawater intake grid, which solves the technical problem that marine organisms attach to the grid, reducing the water flow rate and affecting the water quality.

[0008] (2) Technical solution

[0009] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0010] An automatic cleaning device for a seawater intake grid comprises: a cleaning assembly for cleaning the water intake grid, and a transmission device driven by an intake water flow to move the cleaning assembly along the water intake grid;

[0011] The transmission device includes: a first transmission member driven by water flow to rotate about a first axis; a second transmission member having one end transmission-connected to the first transmission member to rotate about a second axis; and a third transmission member transmission-connected to the other end of the second transmission member to rotate about a third axis.

[0012] The first axial direction is parallel to the second axial direction, and the third axial direction is perpendicular to the first axial direction and the second axial direction;

[0013] The cleaning assembly is threadedly connected to the third transmission member so as to move along the water intake grid when the third transmission member rotates.

[0014] The bottom of the first transmission member is provided with a vortex fan blade, and the vortex fan blade is located outside the water intake grid. The water intake flow drives the vortex fan blade to drive the first transmission member to rotate;

[0015] A first reversing gear for connecting with the second transmission member is provided on the upper portion of the first transmission member.

[0016] A second reversing gear and a third reversing gear are respectively provided at both ends of the second transmission member;

[0017] The second reversing gear is meshed with the first reversing gear;

[0018] The end of the third reversing gear is connected to a reversing assembly, which includes a reversing lever fixed to the end surface of the third reversing gear and a reversing sleeve sleeved on the third transmission member;

[0019] The reversing sleeve is slidably connected to the third transmission member.

[0020] The reversing lever is fixed at the center of the end surface of the third reversing gear, and the length of the reversing lever is greater than the diameter of the third reversing gear.

[0021] The outer side surface of the third transmission member is provided with a concave keyway, and the concave keyway is arranged axially along the third shaft;

[0022] The inner side surface of the reversing sleeve is provided with a convex keyway, and the convex keyway is arranged axially along the third axis;

[0023] The convex keyway is slidably connected to the concave keyway, so that the reversing sleeve is slidably connected to the third transmission member.

[0024] The two ends of the reversing sleeve are respectively provided with a fourth reversing gear and a fifth reversing gear;

[0025] The reversing lever rotates along with the third reversing gear to drive the reversing sleeve to slide back and forth along the third axial direction, so that the third reversing gear is engaged with the fourth reversing gear or the fifth reversing gear.

[0026] It also includes a positioning pin, a mounting groove is provided on the side of the third transmission member, and the positioning pin is retractably arranged in the mounting groove;

[0027] The positioning pin includes a spherical plug-in and a spring, one end of the spring is fixedly connected to the mounting slot, the other end of the spring is connected to the spherical plug-in, and the spherical plug-in extends out of the mounting slot.

[0028] The inner side surface of the reversing sleeve is provided with a slot;

[0029] When the reversing sleeve slides to the top of the concave key groove, the slot corresponds to the mounting slot, the positioning pin is inserted into the slot, and the reversing sleeve is fixed to the third transmission member;

[0030] When the reversing sleeve slides to the bottom of the concave keyway, the inner side surface of the reversing sleeve squeezes the positioning pin, causing the positioning pin to shrink into the installation groove.

[0031] The cleaning assembly includes a plurality of scrapers sleeved on the water intake grid, the scrapers are slidably connected to the water intake grid, and a threaded hole for threaded connection with the third transmission member is provided in the middle of the scraper.

[0032] The automatic cleaning device for the seawater intake grid is arranged between the concrete top plate and the concrete bottom plate of the water intake head; the concrete top plate of the water intake head is provided with a first installation cavity, a second installation cavity and a third installation cavity which are connected in sequence;

[0033] The first transmission member is rotatably connected to the first mounting cavity;

[0034] The second transmission member is rotatably connected to the second mounting cavity;

[0035] The top of the third transmission member is rotatably connected to the third installation cavity, and the bottom of the third transmission member passes through the third installation cavity and is rotatably connected to the concrete bottom plate of the water intake head.

[0036] (3) Beneficial effects

[0037] The beneficial effects of the present invention are as follows: the present invention proposes an automatic cleaning device for a seawater intake grid, which is directly embedded in the concrete slab of the water intake head without adding any additional structure, and does not affect the construction and installation of the water intake head. It has the characteristics of simple structure, easy construction and maintenance-free.

[0038] The transmission device can use the flow of seawater as a power source, and realize automatic cleaning of the water intake grid without affecting the water intake function of the water intake grid. It does not require additional energy to provide power, can save energy, reduce seawater pollution, and has the advantages of economy and environmental protection.

[0039] By setting a reversing device, the rotation direction of the third transmission member is reversed, so that the cleaning component is periodically reciprocated. By setting the cleaning component to periodically mechanically rub the water intake grid, the effect of preventing marine organisms from attaching is achieved.

[0040] The third transmission member is provided with a reversing sleeve that can slide in the axial direction, and gears are respectively provided at the top and bottom ends of the reversing sleeve. By setting a reversing lever to rotate periodically along with the transmission device, the reversing lever spontaneously reciprocates and shifts the gear at the top or bottom end of the reversing sleeve, driving the reversing sleeve to slide along the third transmission member, so that the transmission device engages with the gear at the top or bottom end of the reversing sleeve, realizing the rotational reversal of the lifting device, so that the third transmission member has the functions of rotation and reversing at the same time, thereby realizing the periodic and spontaneous reciprocating motion of the cleaning component, and then realizing automatic cleaning of the seawater intake grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic structural diagram of the automatic cleaning device for seawater intake grid of the present invention;

[0042] Figure 2 It is an enlarged view of the connection structure between the second transmission member and the third transmission member;

[0043] Figure 3 for Figure 1 Cross-sectional view at AA in the middle;

[0044] Figure 4 It is a side view of the reversing sleeve;

[0045] Figure 5 for Figure 4 Cross-sectional view at the middle BB;

[0046] Figure 6 is a partial side view of the third transmission member;

[0047] Figure 7 for Figure 6 Cross-sectional view at CC;

[0048] Figure 8 It is a side view of the reversing lever;

[0049] Figure 9 is a partial enlarged view of the second transmission member;

[0050] Figure 10 Schematic diagram of the structure of the positioning pin.

[0051] [Description of Reference Numerals]

[0052] 1: Water intake grille;

[0053] 21: Third transmission member; 211: Concave keyway; 22: Fifth rolling bearing; 23: Sixth rolling bearing; 24: Reversing sleeve; 241: Fourth reversing gear; 242: Fifth gear; 243: Concave keyway; 25: Reversing lever; 26: Seventh rolling bearing;

[0054] 31: second transmission member; 32: second reversing gear; 33: third reversing gear; 34: third rolling bearing; 35: fourth rolling bearing;

[0055] 41: first transmission member; 42: eddy current blade; 43: first rolling bearing; 44: first reversing gear; 45: second rolling bearing;

[0056] 5: Water intake concrete top plate; 51: Installation cavity; 52: Second installation cavity; 53: Third installation cavity;

[0057] 6: Clean components;

[0058] 7: Water head concrete bottom plate;

[0059] 8: locating pin; 81: mounting slot; 82: slot; 83: spherical plug-in; 84: spring. DETAILED DESCRIPTION

[0060] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below with reference to the accompanying drawings and through specific embodiments. Figure 1 For reference.

[0061] An embodiment of the present invention proposes an automatic cleaning device for a seawater intake grid, comprising a transmission device and a cleaning assembly 6. The device utilizes the flow of seawater as a power source to drive the transmission device to rotate, thereby driving the cleaning assembly 6 to reciprocate along the grid, thereby cleaning the grid 1. Because the cleaning device utilizes the flow of seawater as a power source, it achieves self-cleaning of the grid 1, saving energy and reducing seawater pollution.

[0062] The third transmission member 21 is connected to the reversing assembly, which realizes the rotation reversal of the third transmission member 21 and the periodic reciprocating motion of the cleaning assembly 6. The cleaning assembly 6 periodically mechanically rubs the water intake grid 1 to prevent marine organisms from attaching.

[0063] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0064] The water intake head includes: a water intake grid 1, a water intake head concrete top plate 5 and a water intake head concrete bottom plate 7. The water intake grid 1 is arranged between the water intake head concrete top plate 5 and the water intake head concrete bottom plate 7. The top and bottom of the water intake grid 1 are fixedly connected to the water intake head concrete top plate 5 and the water intake head concrete bottom plate 7 respectively.

[0065] See attached Figure 1 As shown, an embodiment of the present invention provides an automatic cleaning device for a seawater intake grid, connected between a concrete top plate 5 and a concrete bottom plate 7 of the water intake head. The device includes a cleaning assembly 6 for cleaning the water intake grid 1, and a transmission device driven by the water flow to move the cleaning assembly 6 along the water intake grid 1. The transmission device drives the cleaning assembly 6 to and fro along the water intake grid 1, thereby cleaning the water intake grid 1, preventing marine organisms from attaching, and improving water quality.

[0066] The transmission device includes: a first transmission member 41 driven by water flow to rotate about a first axis; a second transmission member 31, one end of which is connected to the first transmission member 41 for rotation about a second axis; and a third transmission member 21, whose other end is connected to the second transmission member 31 for rotation about a third axis. The first axis is parallel to the second axis, and the third axis is perpendicular to the first and second axes. The cleaning assembly 6 is threadedly connected to the third transmission member 41, allowing it to move along the water intake grate 1 when the third transmission member 21 rotates. The continuous arrangement of the first transmission member 41, the second transmission member 31, and the third transmission member 21 enables the long-distance transmission of water flow force.

[0067] The bottom of the first transmission member 41 is provided with a vortex blade 42. The flow of seawater drives the vortex blade 42 to rotate, which serves as the power source of the cleaning component 6. While cleaning the water intake grid 1, it can also save energy and reduce seawater pollution.

[0068] A first reversing gear 44 is provided on the upper portion of the first transmission member 41. The first reversing gear 44 is used to connect to the second transmission member 31. The first reversing gear 44 is fixedly connected to the first transmission member 41 and is a bevel gear (planetary gear).

[0069] The interior of the concrete top plate 5 of the water intake head is provided with a first installation cavity 51, a second installation cavity 52, and a third installation cavity 53, which are connected in sequence. The first installation cavity 51 and the third installation cavity 53 are arranged in a vertical direction, and the second installation cavity 52 is connected to the first installation cavity 51 and the third installation cavity 53 in a horizontal direction, so that the vertical cross-section of the first installation cavity 51, the second installation cavity 52, and the third installation cavity 53 is connected to each other, forming an H-shaped shape. The bottoms of the first installation cavity 51 and the third installation cavity 53 are provided with through holes that connect to the outside. The first installation cavity 51 is used to install the first transmission member 41, the second installation cavity 52 is used to install the second transmission member 31, and the third installation cavity 53 is used to install the third transmission member 21. By arranging the transmission device inside the concrete top plate 5 of the water intake head, while driving the cleaning assembly 6, the external space occupied can be reduced, saving costs and avoiding obstruction of the water intake grille 1, which would affect water intake at the water intake head.

[0070] A first rolling bearing 43 is provided at the top of the first mounting cavity 51. The top end of the first transmission member 41 is rotatably connected to the first rolling bearing 43, ensuring free rotation of the first transmission member 41. A second rolling bearing 45 is also provided at the bottom of the first mounting cavity 51. The second rolling bearing 45 is located below the first reversing gear 44 and is rotatably connected to the first transmission member 41. The second rolling bearing 45 and the first rolling bearing 43 not only coordinate with the rotation of the first transmission member 41, but also serve as a connection and guide, maintaining the first transmission member 41 in a vertical direction.

[0071] The bottom end of the first transmission member 41 passes through the bottom of the first installation cavity 51 and extends to below the water intake head concrete top plate 5. The vortex fan blade 42 is connected to the bottom of the first transmission member 41 and is located on one side of the water intake grid 1 to prevent the vortex fan blade 42 from contacting and colliding with the water intake grid 1, while being driven by the water intake flow.

[0072] When the seawater flows, the vortex blades 42 are driven to rotate along with the seawater flow, and the kinetic energy of the water is transferred to the first transmission member 41 through the vortex blades 42. The first transmission member 41 drives the first reversing gear 44 to rotate to transfer the kinetic energy to the second transmission member 31.

[0073] The transmission assembly is rotatably connected within the second mounting cavity 52 and includes a second transmission member 31, and a second reversing gear 32 and a third reversing gear 33, respectively disposed at either end of the second transmission member 31. Both the second reversing gear 32 and the third reversing gear 33 are bevel gears (planetary gears). The second reversing gear 32 is connected to the first transmission member 41. The second reversing gear 32 is perpendicular to and meshes with the first reversing gear 44. The third reversing gear 33 is connected to the third transmission member 21.

[0074] A third rolling bearing 34 and a fourth rolling bearing 35 are respectively provided at both ends of the second transmission member 31. The third rolling bearing 34 and the fourth rolling bearing 35 are located between the second reversing gear 32 and the third reversing gear 33. The third rolling bearing 34 and the fourth rolling bearing 35 are rotatably connected to the second transmission member 31. The third rolling bearing 34 and the fourth rolling bearing 35 are fixedly connected to the second mounting cavity 52. ​​By providing the third rolling bearing 34 and the fourth rolling bearing 35, while cooperating with the rotation of the second transmission member 31, they also play a role of connection and guidance, so that the second transmission member 31 is maintained in a horizontal direction.

[0075] See attached Figure 2 As shown, the end of the third reversing gear 33 is connected to the reversing assembly, which includes a reversing lever 25 fixed to the end face of the third reversing gear 33 and a reversing sleeve 24 sleeved on the third transmission member 21, and the reversing sleeve 24 is slidably connected to the third transmission member 21.

[0076] See attached Figure 8-9 As shown, one end of the reversing lever 25 is fixed at the center of the end surface of the third reversing gear 33 , and the other end of the reversing lever 25 extends out of the outer edge of the third reversing gear 33 . The length of the reversing lever 25 is greater than the diameter of the third reversing gear 33 .

[0077] See attached Figure 6-7 As shown, the outer side of the third transmission member 21 is provided with a concave keyway 211, and the concave keyway 211 is arranged along the axial direction of the third axis, that is, along the vertical direction of the third transmission member 21. Figure 5 As shown, the inner side of the reversing sleeve 24 is provided with a convex keyway 243, which is arranged axially along the third axis. The convex keyway 243 is slidably connected to the concave keyway 211, allowing the reversing sleeve 24 to be slidably connected to the third transmission member 21. The provision of the convex keyway 243 and the concave keyway 211 allows the reversing sleeve 24 to slide axially along the third transmission member 21 while also driving the third transmission member 21 to rotate circumferentially, thereby providing the third transmission member 21 with both rotation and reversing functions.

[0078] See attached Figure 4 As shown, a fourth reversing gear 241 and a fifth reversing gear 242 are respectively provided at both ends of the reversing sleeve 24. The fourth reversing gear 241 and the fifth reversing gear 242 both adopt bevel gears (star gears). The teeth of the fourth reversing gear 241 and the fifth reversing gear 242 are arranged relative to each other, that is, the teeth of the fourth reversing gear 241 are arranged on the lower side, and the teeth of the fifth reversing gear 242 are arranged on the upper side.

[0079] The reversing lever 25 rotates with the third reversing gear 33 to drive the reversing sleeve 24 to slide back and forth axially along the third transmission member 21, so that the third reversing gear 33 engages with the fourth reversing gear 241 or the fifth reversing gear 242 to drive the third transmission member 21 to rotate forward or reverse, thereby driving the cleaning component 6 to reciprocate.

[0080] When the reversing lever 25 rotates to the top of the third reversing gear 33, it shifts the fourth reversing gear 241, causing the reversing sleeve 24 to slide upward along the concave keyway 211, meshing the third reversing gear 33 with the fifth reversing gear 242 and driving the third transmission member 214 to rotate in the reverse direction. When the reversing lever 25 rotates to the bottom of the third reversing gear 33, it shifts the fifth reversing gear 242, which in turn drives the reversing sleeve 24 to slide downward along the concave keyway 211, meshing the third reversing gear 33 with the fourth reversing gear 241 and driving the third transmission member 214 to rotate in the forward direction. By configuring the reversing lever 25 to periodically rotate with the third reversing gear 33, it spontaneously reciprocates the fourth reversing gear 241 and the fifth gear 242, achieving automatic rotational reversal of the third transmission member 21, thereby achieving reciprocating motion of the cleaning assembly 6.

[0081] See attached Figure 10 As shown, the third transmission member 21 also includes a positioning pin 8. A mounting slot 81 is provided on the side of the third transmission member 21. The positioning pin 8 is retractably disposed in the mounting slot 81. The positioning pin 8 is used to position the reversing sleeve 24 after it has slid upward, so that when the third reversing gear 33 is engaged with the fifth reversing gear 242, the reversing sleeve 24 will not slide downward under the action of gravity, thereby preventing the reversing sleeve 24 from being unable to maintain continuous engagement with the fifth reversing gear 242 before the next reversal. The positioning pin 8 includes a spherical plug-in 83 and a spring 84. One end of the spring 84 is fixedly connected to the mounting slot 81, and the other end of the spring 84 is connected to the spherical plug-in 83, which extends out of the mounting slot 81. The inner side of the reversing sleeve 24 is provided with a slot 82, which is spherical.

[0082] When the reversing lever 25 moves the reversing sleeve 24 upward along the concave keyway 211 to the top of the concave keyway 211 (the third reversing gear 33 meshes with the fifth reversing gear 242), the slot 82 corresponds to the mounting slot 81, the locating pin 8 is inserted into the slot 82, and the reversing sleeve 24 is fixed to the third transmission member 21. When the reversing lever 25 moves the reversing sleeve 24 downward along the concave keyway 211, the inner surface of the reversing sleeve 24 presses against the spherical insert 83, causing the locating pin 8 to retract into the mounting slot 81, thereby allowing the reversing sleeve 24 to slide downward.

[0083] By combining the spherical plug-in 83 and the spherical crown slot 82, the inner side of the reversing sleeve 24 can squeeze the spherical plug-in 83, so that the spherical plug-in 83 squeezes the spring 84 to shrink into the installation groove 81 without being stuck by the slot 82, thereby realizing the positioning and sliding of the reversing sleeve 24.

[0084] The third transmission member 21 is arranged in a vertical direction. The top and bottom of the third mounting cavity 53 are respectively provided with a fifth rolling bearing 22 and a sixth rolling bearing 23. The top of the third transmission member 21 is rotatably connected to the fifth rolling bearing 22, and the middle of the third transmission member 21 is rotatably connected to the sixth rolling bearing 23. The bottom end of the third transmission member 21 extends through the bottom of the third mounting cavity 53 to the bottom of the water intake grid 1. The bottom of the third transmission member 21 is rotatably connected to the concrete base plate 7 of the water intake head. A seventh rolling bearing 26 is provided on the concrete base plate 7 of the water intake head. The bottom of the third transmission member 21 is rotatably connected to the seventh rolling bearing 26. The provision of the fifth, sixth, and seventh rolling bearings 22, 23, and 26 not only coordinates the rotation of the third transmission member 21 but also serves as a connection and guide, thereby maintaining the third transmission member 21 in a vertical direction.

[0085] The third transmission member 21 extends out of the water intake head concrete top plate 5 and is provided with a thread, and the cleaning assembly 6 is threadedly connected to the third transmission member 21. The third transmission member 21 is located between adjacent railings of the water intake grille 1.

[0086] The water intake grid 1 includes a plurality of railings arranged in the vertical direction. Figure 3 As shown, the cleaning assembly 6 includes multiple sets of scrapers sleeved on the railing. The scrapers are provided with a number of through holes along the vertical direction for passing through the railing. The central portion of the scrapers is provided with a threaded hole for threaded connection with the third transmission member 21. The third transmission member 21 rotates forward or backward, driving the scrapers to reciprocate along the water intake grid 1, thereby cleaning the water intake grid 1, preventing the attachment of marine organisms, and improving the water intake quality.

[0087] The gear diameters and gear ratios of the first reversing gear 44 and the second reversing gear 32 are calculated based on actual needs.

[0088] The gear diameters and gear ratios of the third reversing gear 33, the fourth reversing gear 241, and the fifth reversing gear 242 are calculated based on actual needs. The lifting thread size of the third transmission member 21 is calculated based on actual needs.

[0089] By adjusting the gear diameter and the number of gear ratios, the travel range of each set of scrapers can be adjusted. The number of scrapers provided can also be changed to meet the cleaning requirements of the water intake grid 1.

[0090] The present invention proposes an automatic cleaning device for a seawater intake grid, which is directly embedded in the concrete slab of the water intake head without adding any additional structure and does not affect the construction and installation of the water intake head. It has the characteristics of simple structure, easy construction and maintenance-free.

[0091] The transmission device can use the flow of seawater as a power source, and realize automatic cleaning of the water intake grid 1 without affecting the water intake function of the water intake grid 1. It does not require additional energy to provide power, can save energy, reduce seawater pollution, and has the advantages of economy and environmental protection.

[0092] By providing a reversing device, the rotation direction of the third transmission member 21 is reversed, so that the cleaning component 6 can reciprocate periodically. By providing the cleaning component 6 to mechanically rub the water intake grid 1 periodically, the effect of preventing marine organisms from attaching is achieved.

[0093] The third transmission member 21 is provided with a reversing sleeve 24 that can slide in the axial direction. The top and bottom ends of the reversing sleeve 24 are respectively provided with a fourth reversing gear 241 and a fifth gear 242. By setting a reversing lever 25 to rotate periodically with the third reversing gear 33, the reversing lever 25 spontaneously reciprocates the fourth reversing gear 241 and the fifth gear 242, driving the reversing sleeve 24 to slide axially along the third transmission member 21, so that the third reversing gear 33 is engaged with the fourth reversing gear 241 or the fifth gear 242, realizing the rotation reversal of the lifting device, so that the third transmission member 21 has the functions of rotation and reversing at the same time, thereby realizing the periodic and spontaneous reciprocating motion of the cleaning component 6, and then realizing automatic cleaning of the seawater intake grid 1.

[0094] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0095] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0096] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0097] In the description of this specification, the terms "one embodiment", "some embodiments", "embodiments", "examples", "specific examples" or "some examples" refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example and included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are mutually inconsistent.

[0098] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An automatic cleaning device for seawater intake grid, characterized in that: include: A cleaning assembly (6) for cleaning a water intake grid (1), and a transmission device driven by an intake water flow to move the cleaning assembly (6) along the water intake grid (1); The transmission device comprises: a first transmission member (41) driven by water flow to rotate about a first axial direction; a second transmission member (31) having one end transmission-connected to the first transmission member (41) to rotate about a second axial direction; and a third transmission member (21) transmission-connected to the other end of the second transmission member (31) to rotate about a third axial direction; The first axial direction is parallel to the second axial direction, and the third axial direction is perpendicular to the first axial direction and the second axial direction; The cleaning assembly (6) is threadedly connected to the third transmission member (21) so as to move along the water intake grid (1) when the third transmission member (21) rotates; A first reversing gear (44) for connecting to the second transmission member (31) is provided on the upper portion of the first transmission member (41); A second reversing gear (32) and a third reversing gear (33) are respectively provided at both ends of the second transmission member (31); The second reversing gear (32) is meshed with the first reversing gear (44); The end of the third reversing gear (33) is connected to a reversing assembly, and the reversing assembly includes a reversing lever (25) fixed to the end surface of the third reversing gear (33), and a reversing sleeve (24) sleeved on the third transmission member (21); The reversing sleeve (24) is slidably connected to the third transmission member (21).

2. The automatic cleaning device for seawater intake grid according to claim 1, characterized in that: A vortex blade (42) is provided at the bottom of the first transmission member (41), and the vortex blade (42) is located outside the water intake grid (1). The water intake flow drives the vortex blade (42) to drive the first transmission member (41) to rotate.

3. The automatic cleaning device for seawater intake grid according to claim 1, characterized in that: The reversing lever (25) is fixed at the center of the end surface of the third reversing gear (33), and the length of the reversing lever (25) is greater than the diameter of the third reversing gear (33).

4. The automatic cleaning device for seawater intake grid according to claim 1, characterized in that: The outer side surface of the third transmission member (21) is provided with a concave keyway (211), and the concave keyway (211) is axially arranged along the third axis; The inner side surface of the reversing sleeve (24) is provided with a convex keyway (243), and the convex keyway (243) is arranged axially along the third axis; The convex keyway (243) is slidably connected to the concave keyway (211), so that the reversing sleeve (24) is slidably connected to the third transmission member (21).

5. The automatic cleaning device for seawater intake grid according to claim 4, characterized in that: A fourth reversing gear (241) and a fifth reversing gear (242) are respectively provided at both ends of the reversing sleeve (24); The reversing lever (25) rotates along with the third reversing gear (33) to drive the reversing sleeve (24) to slide back and forth along the third axial direction, so that the third reversing gear (33) meshes with the fourth reversing gear (241) or the fifth reversing gear (242).

6. The automatic cleaning device for seawater intake grid according to claim 5, characterized in that: It also includes a positioning pin (8), a mounting groove (81) is provided on the side of the third transmission member (21), and the positioning pin (8) is telescopically arranged in the mounting groove (81); The positioning pin (8) includes a spherical plug-in (83) and a spring (84), one end of the spring (84) is fixedly connected to the mounting groove (81), and the other end of the spring (84) is connected to the spherical plug-in (83), and the spherical plug-in (83) extends out of the mounting groove (81).

7. The automatic cleaning device for seawater intake grid according to claim 6, characterized in that: The inner side surface of the reversing sleeve (24) is provided with a slot (82); When the reversing sleeve (24) slides to the top of the concave key groove (211), the slot (82) corresponds to the mounting slot (81), the positioning pin (8) is inserted into the slot (82), and the reversing sleeve (24) is fixed to the third transmission member (21); When the reversing sleeve (24) slides to the bottom of the concave keyway (211), the inner side surface of the reversing sleeve (24) presses the positioning pin (8), causing the positioning pin (8) to shrink into the installation groove (81).

8. The automatic cleaning device for seawater intake grid according to claim 1, characterized in that: The cleaning assembly (6) comprises a plurality of scraper groups sleeved on the water intake grid (1), the scrapers being slidably connected to the water intake grid (1), and threaded holes for threaded connection with the third transmission member (21) being provided in the middle of the scrapers.

9. The automatic cleaning device for seawater intake grid according to claim 1, characterized in that: The seawater intake grid automatic cleaning device is arranged between the water intake head concrete top plate (5) and the water intake head concrete bottom plate (7); the water intake head concrete top plate (5) is provided with a first installation cavity (51), a second installation cavity (52) and a third installation cavity (53) which are connected in sequence; The first transmission member (41) is rotatably connected to the first mounting cavity (51); The second transmission member (31) is rotatably connected to the second mounting cavity (52); The top of the third transmission member (21) is rotatably connected to the third installation cavity (53), and the bottom of the third transmission member (21) passes through the third installation cavity (53) and is rotatably connected to the water intake head concrete bottom plate (7).

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