Plate spring boundary constraint self-adjusting bistable state wave energy converter

Abstract

A plate spring boundary constraint self-adjusting bistable wave energy converter comprises a floater 1, a telescopic sealing sleeve 2, a fixing piece 3, a main transmission mechanism 4, an auxiliary transmission mechanism 5, a self-adjusting bistable mechanism 6, a motion adjusting mechanism 7, a power generation mechanism 8 and a stabilizing mechanism 9. The main transmission mechanism 4 is used for converting wave energy into kinetic energy capable of relatively moving when the floater 1 moves along with waves, the auxiliary transmission mechanism 5 is used for assisting transmission of the main transmission mechanism 4, and the self-adjusting bistable mechanism 6 is used for improving low-frequency motion response of the floater 1. The motion adjusting mechanism 7 is used for converting linear motion of the main transmission mechanism 4 relative to the floater 1 into rotary motion, the power generation mechanism 8 is used for achieving power generation, and the stabilizing mechanism 9 is used for guaranteeing that the plate spring boundary constraint self-adjusting bistable state wave energy converter has enough restoring torque to prevent toppling. Efficient power generation under small wave excitation can be achieved, and the compact structure is convenient to produce, install, transport and use.

Description

Technical Field

[0001] The invention belongs to the field of renewable energy in marine engineering, and in particular relates to a leaf spring boundary-constrained self-regulating bistable wave energy converter. Background Art

[0002] The surface of the earth is dominated by the ocean, and the ever-present waves contain huge energy. As a renewable energy source, wave energy has the advantages of cleanliness, high energy flow density and little influence from seasonal changes. Wave energy has great potential, and the rational use of wave energy can help alleviate the increased energy consumption pressure caused by the rapid development of the world. The low power generation efficiency of wave energy converters is one of the main factors affecting their application. How to capture energy from low-frequency waves is a recognized technical problem. The introduction of a bistable mechanism into a wave energy converter can effectively improve its energy capture efficiency for low-frequency waves. However, after the introduction of the traditional bistable mechanism, the wave energy converter requires a larger wave excitation force to overcome its own "potential barrier". Due to the irregularity of the waves, the wave energy converter is prone to make a small amplitude well movement under small excitation conditions, and its corresponding energy capture efficiency will also deteriorate sharply. For the wave energy converter with axial relative motion, it needs to have a longer axial length for stable operation, and the sealing steps are more complicated. At the same time, it is difficult for conventional coil springs to have the functions of tension, compression and anti-instability at the same time when used. Summary of the invention

[0003] The main purpose of the present invention is to design a leaf spring boundary-constrained self-regulating bistable wave energy converter with a time-varying self-regulating potential barrier, aiming to solve the above-mentioned technical problems.

[0004] The present invention provides the following technical solutions:

[0005] A leaf spring boundary constraint self-adjusting bistable wave energy converter, comprising a float 1, a telescopic sealing sleeve 2, a fixing part 3, a main transmission mechanism 4, an auxiliary transmission mechanism 5, a self-adjusting bistable mechanism 6, a motion adjustment mechanism 7, a power generation mechanism 8 and a stabilizing mechanism 9, wherein the auxiliary transmission mechanism 5, the self-adjusting bistable mechanism 6, the motion adjustment mechanism 7, the power generation mechanism 8 and the stabilizing mechanism 9 are all integrated and installed in the float 1, and the float 1 is detachable from a cylindrical float body 11, an outer top cover 12, an outer bottom cover 13, an inner top cover 14 and an inner bottom cover 15 The outer top cover 12 is installed on the inner top cover 14, the inner top cover 14 is arranged on the top of the cylindrical float body 11, the inner bottom cover 15 is arranged at the bottom of the cylindrical float body 11, the outer bottom cover 13 is installed below the inner bottom cover 15, the telescopic sealing sleeve 2 is sleeved between the outer bottom cover 13 and the fixing member 3, the main transmission mechanism 4 passes through the center of the inner bottom cover 15 and the outer bottom cover 13, the top end of which is fixedly connected to the auxiliary transmission mechanism 5, and the bottom end of which is fixedly connected to the fixing member 3 The auxiliary transmission mechanism 5 carries the motion adjustment mechanism 6, the self-adjusting bistable mechanism 7 and the power generation mechanism 8, the stabilizing mechanism 9 is arranged between the outer bottom cover 13 and the inner bottom cover 15, the main transmission mechanism 4 is arranged in the middle position, the auxiliary transmission mechanism 5 is arranged around the main transmission mechanism 4, the self-adjusting bistable mechanism 6 is arranged on both sides of the main transmission mechanism 4, the motion adjustment mechanism 7 is arranged at the top of the main transmission mechanism 4, the main transmission mechanism 4 is used to convert wave energy into kinetic energy that can move relative to each other when the float 1 moves with the waves, the auxiliary transmission mechanism 5 is used to assist the transmission of the main transmission mechanism 4, the self-adjusting bistable mechanism 6 is used to improve the low-frequency motion response of the float 1, the motion adjustment mechanism 7 is used to convert the linear motion of the main transmission mechanism 4 relative to the float 1 into rotational motion, the power generation mechanism 8 is used to realize power generation, and the stabilizing mechanism 9 is used to ensure that the leaf spring boundary constraint self-adjusting bistable wave energy converter has sufficient restoring torque to prevent tipping.

[0006] Furthermore, the main transmission mechanism 4 includes a main shaft 41, a first linear bearing 42, a first washer 43, a top end cover 44 and a bottom end cover 45; the main shaft 41 is vertically arranged at the center of the float 1, the first linear bearing 42 is vertically arranged on a section of the main shaft 41 located at the inner bottom cover 15, the first washer 43 is respectively installed on the upper and lower sides of the first linear bearing 42, the cross-section of the top end cover 44 is L-shaped, the cross-section of the bottom end cover 45 is a concave shape with the bottom protruding, the two first washers 43 are respectively installed in the top end cover 44 and the bottom end cover 45, the bottom end cover 45 is installed on the inner surface of the bottom end of the outer bottom cover 13, and the top end cover 44 is invertedly installed on the upper surface of the inner bottom cover 15.

[0007] Furthermore, the stabilizing mechanism 9 includes a counterweight block 91, a counterweight block carrier 92, a counterweight bearing platform 93 and an auxiliary support member 94; the counterweight block 91 is in the shape of a truncated cone with a larger top and a smaller bottom, and a cylindrical hole is provided in the middle; the counterweight bearing platform 93 is horizontally installed on the inverted cone surface 131 of the outer bottom cover 13; a circular hole is provided in the middle of the counterweight bearing platform 93 for passing the first linear bearing 42; the counterweight block carrier 92 includes a hollow cylindrical section and a circular plate section; the hollow cylindrical section is sleeved on the outside of the first linear bearing 42; the circular plate section is arranged on the counterweight bearing platform 93; the counterweight block 91 is sleeved on the counterweight block carrier 92; the auxiliary support member 94 is installed on the bottom end cover 45 for auxiliary support of the counterweight bearing platform 93.

[0008] Furthermore, the auxiliary transmission mechanism 5 includes an integrated slider 51, a guide rail 52, a second linear bearing 53 and a bearing cover assembly 54; the integrated slider 51 includes a connecting block 511, a first slider 512 and a second slider 513, the second slider 513 is a rectangular parallelepiped, the center of which is provided with a cylindrical through hole, the top of the spindle 41 is fixedly arranged in the cylindrical through hole, the first slider 512 is provided with two, the two first sliders 512 are cylinders, each of the cylinders is installed with the second linear bearing 53, the two first sliders 512 are respectively arranged at two adjacent corners of the second slider 513, and the two first sliders 512 are connected by the The bearing cover assembly 54 comprises a connecting arm 541 and two bearing covers 542, the two bearing covers 542 are respectively arranged at the top ends of the two first sliders 512 for limiting the second linear bearing 53, the two bearing covers 542 are connected by the connecting arm 541, and the position of the connecting arm 541 matches that of the connecting block 511; the guide rail 52 is vertically arranged in each of the second linear bearings 53, the bottom end of the guide rail 52 is fixedly arranged on the inner bottom cover 15, and the top end of the guide rail 52 is fixedly arranged on the inner top cover 14.

[0009] Furthermore, the self-adjusting bistable mechanism 6 includes two groups of coil spring assemblies 61, two leaf springs 62, two first pins 63, two leaf spring positioning connectors 64, two second pins 65, a coil spring connector 66, two leaf spring support members 67 and a mounting platform 68; the mounting platform 68 horizontally and longitudinally covers the top of the integrated slider 51, and the coil spring connector 66 horizontally and laterally covers the mounting platform 68, both ends of the coil spring connector 66 are connected to one end of a group of coil spring assemblies 61 through a second pin 65, and the other end of each coil spring assembly 61 is connected to the leaf spring positioning connector 64 through the first pin 63, two leaf springs 62 are vertically arranged on both sides of the leaf spring support member 67, the two leaf spring support members 67 are respectively fixed to the inner surfaces of the inner bottom cover 15 and the inner top cover 14, and the two leaf spring positioning connectors 64 are respectively fixed at the middle positions of the two leaf springs 62.

[0010] Furthermore, each group of the coil spring assembly 61 includes a first sleeve 611, a coil spring 612 and a second sleeve 613, and the first sleeve 611, the coil spring 612 and the second sleeve 613 are connected in sequence; the first sleeve 611 includes a guide cylindrical hole 6111, a mounting cylinder 6112, a first stabilizing ring 6113, a first hinge joint 6114 and a first pin shaft hole 6115, the guide cylindrical hole 6111 is arranged inside the mounting cylinder 6112, one end of the mounting cylinder 6112 is arranged inside the first stabilizing ring 6113, the first hinge joint 6114 is arranged inside the first stabilizing ring 6113, and the first hinge joint 6114 is arranged inside the first stabilizing ring 6113. On the outer side of the fixed ring 6113, the first pin hole 6115 is arranged inside the first hinge head 6114, and the first pin 63 is inserted into the first pin hole 6115; the second sleeve 613 includes a second stabilizing ring 6131, a guide column 6132, a mounting head 6133, a second hinge head 6134 and a second pin hole 6135, one end of the guide column 6132 is arranged inside the second stabilizing ring 6131, the mounting head 6133 is arranged on the side of the second stabilizing ring 6131, the second hinge head 6134 is arranged at the end of the mounting head 6133, and the second pin hole 613 5 is arranged inside the second hinge joint 6134, the second pin shaft 65 is inserted into the second pin shaft hole 6135, the guide column 6132 is slidably matched with the guide cylindrical hole 6111, the coil spring 612 is sleeved on the installation cylindrical 6112 and guided by the first stabilizing ring 6113 and the second stabilizing ring 6131, and the two ends of the coil spring 612 are respectively fixed in the first stabilizing ring 6113 and the second stabilizing ring 6131 by screws, so that the coil spring 612 has the functions of anti-instability and compression and tension at the same time; the leaf spring positioning connector 64 includes A rectangular through hole 641, a first mounting groove 642, a third pin shaft hole 643 and a positioning body 644. The positioning body 644 is a rectangular block on which the rectangular through hole 641 is provided. A first lug is provided on the side of the positioning body 644. The first mounting groove 642 is provided in the middle of the first lug. The third pin shaft hole 643 is provided on the side of the first lug. The first hinged head 6114 is installed in the first mounting groove 642. The first pin shaft 63 passes through the first pin shaft hole 6115 and the third pin shaft hole 643. The leaf spring 62 is vertically fixed in the rectangular through hole 641.The spiral spring connector 66 is in the shape of a plate, and includes a connector body 661, a second mounting groove 662 and a third pin shaft hole 663. The left and right ends of the connector body 661 are respectively provided with second lugs, the middle of each second lug is provided with the second mounting groove 662, and the side of each second lug is provided with the third pin shaft hole 663. Each second mounting groove 662 accommodates the second hinge head 6134, and the second pin shaft 65 is inserted into the third pin shaft hole 663 and the second pin shaft hole 6135; the mounting platform 68 is in the shape of an I-beam, and the connector body 661 is transversely fixed to the upper surface of the mounting platform 68; the two leaf spring fixing members 67 are respectively Fixedly mounted on the inner top cover 14 and the inner bottom cover 15, each leaf spring fixing member 67 is a cross-like structure, with a hollowed-out portion at the intersection, the hollowed-out portion is used to avoid the main shaft 41, each leaf spring support member 67 is provided with a plurality of leaf spring mounting slits 671, two rack mounting holes 672 and two guide rail mounting holes 673, the two ends of the leaf spring 62 are detachably mounted in the leaf spring mounting slits 671, and the plurality of leaf spring mounting slits 671 are arranged in parallel to adjust the spacing between the two leaf springs 62, the two ends of the rack 73 of the motion adjustment mechanism 7 are fixedly mounted in the rack mounting holes 672, and the two ends of the guide rail 52 are fixedly mounted in the guide rail mounting holes 673. ;

[0011] Furthermore, the motion adjustment mechanism 7 includes a gear top cover 71, a gear base 72, two left and right racks 73, a one-way gear set 74, a common gear set 75, a common bearing 76, a gear shaft set 77 and a coupling 78. The gear base 72 is fixedly mounted on the mounting platform 68. The gear base 72 is adjacent to the coil spring connector 66. The gear top cover 71 and the gear base 72 are cooperatively mounted. The one-way gear set 74, the common gear set 75, the common bearing 76, the gear shaft set 77 and the coupling 78 are all arranged in the gear top cover 71. The left and right racks 73 are respectively vertically mounted on the lateral sides of the mounting platform 68. The one-way gear set 74 includes a first one-way gear 741 and a second one-way gear 742. The first one-way gear 741 is meshed with the rack 73 on the left side. The second one-way gear 742 is meshed with the rack 73 on the left side. The gear 742 is meshed with the rack 73 on the right side, the ordinary gear group 75 includes a first ordinary gear 751, a second ordinary gear 752 and a third ordinary gear 753, the gear shaft group 77 includes a first gear shaft 771, a second gear shaft 772 and a third gear shaft 773, the first one-way gear 741 and the first ordinary gear 751 share the same first gear shaft 771, the second one-way gear 742 and the third ordinary gear 753 share the same third gear shaft 773, the second ordinary gear 752 is meshed with the first ordinary gear 751 and the third ordinary gear 753 at the same time, and is located between the first ordinary gear 751 and the third ordinary gear 753, the second ordinary gear 752 is connected to the coupling 78 through the second gear shaft 772, and the coupling 78 is connected to the power generation mechanism 8.

[0012] Furthermore, the power generation mechanism 8 includes a generator 81 and a fixing ring 82 . The generator 8 is mounted on an upper surface of one longitudinal side of the mounting platform 68 via the fixing ring 82 . The generator 8 is connected to the coupling 78 .

[0013] Further, the outer top cover 12 includes a first circular plate 121 and a first circular mounting boss 122 located on the outer periphery of the first circular plate 121, the outer wall of the first circular mounting boss 122 is tightly matched with the inner wall of the upper end of the cylindrical float body 11, the inner top cover 14 includes a second circular plate 141 and a first mounting protrusion 142, the second circular plate 141 is screwed to the outer top cover 12, and the first mounting protrusion 142 is symmetrically installed in the middle position below the second circular plate 141; the outer bottom cover 13 includes an inverted cone 131, a second circular mounting boss 13 2. A circular bearing plate 133, a flange mounting plate 134, a flange seal 135 and a sealing gasket 136. The circular bearing plate 133 is arranged on the top of the inverted cone 131. The second circular mounting boss 132 is arranged on the circular bearing plate 133. The outer wall of the second circular mounting boss 132 is tightly matched with the inner wall of the lower end of the cylindrical float body 11. The flange mounting plate 134 is annular and arranged at the bottom of the inverted cone 131. The annular shape is used to pass the main shaft 41. The bottom end cover 45 is arranged on the flange mounting plate 134. The flange seal 135 is installed in cooperation with the flange mounting plate 134, the sealing gasket 136 is installed between the flange mounting plate 134 and the flange seal 135, the flange seal 135 extends downwardly out of a first shaft section 1351, the outer wall of the first shaft section 1351 is used to install the telescopic sealing sleeve 2, the inner wall of the first shaft section 1351 is used to pass the main shaft 41, the inner bottom cover 15 includes a third circular plate 151 and a second mounting protrusion 152, the center of the third circular plate 151 is provided with a center hole 1511, the second mounting protrusion 152 52 is symmetrically arranged near the center hole 1511, the top end of the first linear bearing 42 passes through the center hole 1511 and is installed in the top end cover 44 in cooperation with one of the first washers 43, the bottom end of the first linear bearing 42 is installed in the bottom end cover 45 in cooperation with another of the first washers 43, the side of the second mounting protrusion 152 close to the center of the circle is set to an arc shape with the same curvature as the top end cover 44, and the hollowed-out portion of the leaf spring fixing member 67 is tightly fitted with the second mounting protrusion 152 or the first mounting protrusion 142.

[0014] Furthermore, the telescopic sealing sleeve 2 is sleeved on the portion of the outer bottom cover 13 extending out from the lower side of the main shaft 41, the lower end of the main shaft 41 is detachably installed in the fixing member 3, the upper end of the telescopic sealing sleeve 2 is fixedly installed on the first shaft segment 1351 of the flange seal 135, the upper part of the fixing member 3 is provided with a second shaft segment 31, the lower end of the telescopic sealing sleeve 2 is fixedly installed on the second shaft segment 31, the lower part of the fixing member 3 is a spherical structure, the spherical structure is provided with an anchor chain hole 32, and the anchor chain hole 32 is used for a mooring fixture.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention designs a spiral spring mechanism with tensile, compressive and anti-instability functions and cooperates with a leaf spring to form a self-adjusting bistable mechanism. After the self-adjusting bistable mechanism is applied to the wave energy converter, it can automatically adjust the potential barrier of the system. Compared with the traditional bistable wave energy converter, the self-adjusting bistable wave energy converter is easier to adapt to the complex and changeable wave height changes in the ocean, and can also cross the potential barrier to make inter-well movement with a larger motion amplitude under the excitation of small waves.

[0017] 2. A bistable mechanism is designed to cooperate with the sleeve to realize the tension and compression functions. Together with the leaf spring, it constitutes the main structure of the self-adjusting bistable mechanism. The dynamic boundary constraint of the traditional bistable mechanism is realized by the leaf spring, so that the device can have a potential barrier that automatically adjusts with the change of wave excitation after adding the self-adjusting bistable mechanism. It can also easily complete the large-scale well-to-well movement in the bistable system under relatively small wave excitation force.

[0018] 3. Since the spiral spring mechanism assists in compression and stretching through the sleeve and assists in achieving the anti-bending function, the self-regulating bistable wave energy converter can have stable working performance.

[0019] 4. A linear transmission auxiliary mechanism mainly composed of linear bearings and guide rails is designed, and is attached to one side of the guide rail to assist the linear transmission of the main shaft, thereby eliminating the top auxiliary transmission of the main shaft and reducing the axial space occupancy; a sealing form is designed that uses a telescopic sealing sleeve to seal the optical axis transmission, simplifying the sealing steps of the transmission process.

[0020] 5. In the present invention, the main transmission mechanism, the auxiliary transmission mechanism, the self-adjusting bistable mechanism, the motion adjustment mechanism and the power generation mechanism can be highly integrated in the float at the same time, and the compact structure is convenient for production, installation, transportation and use.

[0021] 6. The sealing method of the present invention adopts the form of an external telescopic sealing sleeve for sealing, which simplifies the sealing form compared with the traditional mechanical sealing method that requires a large number of parts to complete the sealing function. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a partial exploded view of a leaf spring boundary-constrained self-regulating bistable wave energy converter of the present invention.

[0023] Figure 2 It is an oblique view of the outer top cover of the float of the present invention.

[0024] Figure 3 It is a cross-sectional view of the outer bottom cover of the float of the present invention.

[0025] Figure 4It is an oblique view of the inner top cover of the float of the present invention.

[0026] Figure 5 It is a perspective view of the inner bottom cover of the float of the present invention.

[0027] Figure 6 It is a schematic diagram of the telescopic sealing sleeve and the fixing member of the present invention.

[0028] Figure 7 It is a cross-sectional view of the main transmission mechanism and the stabilizing mechanism of the present invention.

[0029] Figure 8 It is a partial cross-sectional view of the auxiliary transmission mechanism and the self-adjusting bistable mechanism of the present invention.

[0030] Fig. 9 It is a partial exploded view of a part of the auxiliary transmission mechanism of the present invention.

[0031] Fig.10 It is a partial exploded view of a part of the self-regulating bistable mechanism of the present invention.

[0032] Fig.11 It is a partial exploded view of the motion adjustment mechanism and the power generation mechanism of the present invention.

[0033] Fig.12 This is a state diagram of the wave energy converter of the present invention being at the lower limit point.

[0034] Fig.13 It is a state diagram of the wave energy converter of the present invention being at a lower stable equilibrium point.

[0035] Fig.14 It is a state diagram of the wave energy converter of the present invention at an unstable equilibrium point.

[0036] Fig.15 It is a state diagram of the wave energy converter of the present invention being at an upper stable equilibrium point.

[0037] Fig.16 This is a state diagram of the wave energy converter of the present invention being at the upper limit point.

[0038] Description of reference numerals:

[0039] Float 1, telescopic sealing sleeve 2, fixing part 3, main transmission mechanism 4, auxiliary transmission mechanism 5, self-adjusting bistable mechanism 6, motion adjustment mechanism 7, power generation mechanism 8, stabilizing mechanism 9.

[0040] The cylindrical float body 11, the outer top cover 12, the first circular plate 121, the first circular mounting boss 122, the outer bottom cover 13, the inverted cone 131, the second circular mounting boss 132, the circular bearing plate 133, the flange mounting plate 134, the flange seal 135, the first shaft section 1351, the sealing gasket 136, the inner top cover 14, the second circular plate 141, the first mounting protrusion 142, the inner bottom cover 15, the third circular plate 151, the center hole 1511, and the second mounting protrusion 152.

[0041] The second shaft section 31 and the anchor chain hole 32 .

[0042] The main shaft 41 , the first linear bearing 42 , the first washer 43 , the top end cover 44 , and the bottom end cover 45 .

[0043] An integrated slider 51 , a connecting block 511 , a first slider 512 , a second slider 513 , a guide rail 52 , a second linear bearing 53 , a bearing cover assembly 54 , a connecting arm 541 , and two bearing covers 542 .

[0044] Coil spring assembly 61, first sleeve 611, guide cylindrical hole 6111, mounting cylinder 6112, first stabilizing ring 6113, first hinge head 6114, first pin hole 6115, coil spring 612, second sleeve 613, second stabilizing ring 6131, guide column 6132, mounting head 6133, second hinge head 6134, second pin hole 6135, leaf spring 62, first pin 63, leaf spring positioning connector 64, rectangular through hole 641, first mounting groove 642, third pin hole 643, positioning body 644, second pin 65, coil spring connector 66, connector body 661, second mounting groove 662, third pin hole 663, leaf spring support 67, mounting platform 68.

[0045] Gear top cover 71, gear base 72, left and right racks 73, one-way gear set 74, first one-way gear 741, second one-way gear 742, ordinary gear set 75, first ordinary gear 751, second ordinary gear 752, third ordinary gear 753, ordinary bearing 76, gear shaft set 77, first gear shaft 771, second gear shaft 772, third gear shaft 773, coupling 78.

[0046] Generator 81 and fixing ring 82.

[0047] Counterweight block 91 , counterweight block bearing member 92 , counterweight bearing platform 93 , and auxiliary support member 94 . DETAILED DESCRIPTION

[0048] A leaf spring boundary constraint self-adjusting bistable wave energy converter, comprising a float 1, a telescopic sealing sleeve 2, a fixing part 3, a main transmission mechanism 4, an auxiliary transmission mechanism 5, a self-adjusting bistable mechanism 6, a motion adjustment mechanism 7, a power generation mechanism 8 and a stabilizing mechanism 9, wherein the auxiliary transmission mechanism 5, the self-adjusting bistable mechanism 6, the motion adjustment mechanism 7, the power generation mechanism 8 and the stabilizing mechanism 9 are all integrated and installed in the float 1, and the float 1 is detachable from a cylindrical float body 11, an outer top cover 12, an outer bottom cover 13, an inner top cover 14 and an inner bottom cover 15 The outer top cover 12 is installed on the inner top cover 14, the inner top cover 14 is arranged on the top of the cylindrical float body 11, the inner bottom cover 15 is arranged at the bottom of the cylindrical float body 11, the outer bottom cover 13 is installed below the inner bottom cover 15, the telescopic sealing sleeve 2 is sleeved between the outer bottom cover 13 and the fixing member 3, the main transmission mechanism 4 passes through the center of the inner bottom cover 15 and the outer bottom cover 13, the top end of which is fixedly connected to the auxiliary transmission mechanism 5, and the bottom end of which is fixedly connected to the fixing member 3 The auxiliary transmission mechanism 5 carries the motion adjustment mechanism 6, the self-adjusting bistable mechanism 7 and the power generation mechanism 8, the stabilizing mechanism 9 is arranged between the outer bottom cover 13 and the inner bottom cover 15, the main transmission mechanism 4 is arranged in the middle position, the auxiliary transmission mechanism 5 is arranged around the main transmission mechanism 4, the self-adjusting bistable mechanism 6 is arranged on both sides of the main transmission mechanism 4, the motion adjustment mechanism 7 is arranged at the top of the main transmission mechanism 4, the main transmission mechanism 4 is used to convert wave energy into kinetic energy that can move relative to each other when the float 1 moves with the waves, the auxiliary transmission mechanism 5 is used to assist the transmission of the main transmission mechanism 4, the self-adjusting bistable mechanism 6 is used to improve the low-frequency motion response of the float 1, the motion adjustment mechanism 7 is used to convert the linear motion of the main transmission mechanism 4 relative to the float 1 into rotational motion, the power generation mechanism 8 is used to realize power generation, and the stabilizing mechanism 9 is used to ensure that the leaf spring boundary constraint self-adjusting bistable wave energy converter has sufficient restoring torque to prevent tipping.

[0049] Furthermore, the main transmission mechanism 4 includes a main shaft 41, a first linear bearing 42, a first washer 43, a top end cover 44 and a bottom end cover 45; the main shaft 41 is vertically arranged at the center of the float 1, the first linear bearing 42 is vertically arranged on a section of the main shaft 41 located at the inner bottom cover 15, the first washer 43 is respectively installed on the upper and lower sides of the first linear bearing 42, the cross-section of the top end cover 44 is L-shaped, the cross-section of the bottom end cover 45 is a concave shape with the bottom protruding, the two first washers 43 are respectively installed in the top end cover 44 and the bottom end cover 45, the bottom end cover 45 is installed on the inner surface of the bottom end of the outer bottom cover 13, and the top end cover 44 is invertedly installed on the upper surface of the inner bottom cover 15.

[0050] Furthermore, the stabilizing mechanism 9 includes a counterweight block 91, a counterweight block carrier 92, a counterweight bearing platform 93 and an auxiliary support member 94; the counterweight block 91 is in the shape of a truncated cone with a larger top and a smaller bottom, and a cylindrical hole is provided in the middle; the counterweight bearing platform 93 is horizontally installed on the inverted cone surface 131 of the outer bottom cover 13; a circular hole is provided in the middle of the counterweight bearing platform 93 for passing the first linear bearing 42; the counterweight block carrier 92 includes a hollow cylindrical section and a circular plate section; the hollow cylindrical section is sleeved on the outside of the first linear bearing 42; the circular plate section is arranged on the counterweight bearing platform 93; the counterweight block 91 is sleeved on the counterweight block carrier 92; the auxiliary support member 94 is installed on the bottom end cover 45 for auxiliary support of the counterweight bearing platform 93.

[0051] Furthermore, the auxiliary transmission mechanism 5 includes an integrated slider 51, a guide rail 52, a second linear bearing 53 and a bearing cover assembly 54; the integrated slider 51 includes a connecting block 511, a first slider 512 and a second slider 513, the second slider 513 is a rectangular parallelepiped, the center of which is provided with a cylindrical through hole, the top of the spindle 41 is fixedly arranged in the cylindrical through hole, the first slider 512 is provided with two, the two first sliders 512 are cylinders, each of the cylinders is installed with the second linear bearing 53, the two first sliders 512 are respectively arranged at two adjacent corners of the second slider 513, and the two first sliders 512 are connected by the The bearing cover assembly 54 comprises a connecting arm 541 and two bearing covers 542, the two bearing covers 542 are respectively arranged at the top ends of the two first sliders 512 for limiting the second linear bearing 53, the two bearing covers 542 are connected by the connecting arm 541, and the position of the connecting arm 541 matches that of the connecting block 511; the guide rail 52 is vertically arranged in each of the second linear bearings 53, the bottom end of the guide rail 52 is fixedly arranged on the inner bottom cover 15, and the top end of the guide rail 52 is fixedly arranged on the inner top cover 14.

[0052] Furthermore, the self-adjusting bistable mechanism 6 includes two groups of coil spring assemblies 61, two leaf springs 62, two first pins 63, two leaf spring positioning connectors 64, two second pins 65, a coil spring connector 66, two leaf spring support members 67 and a mounting platform 68; the mounting platform 68 horizontally and longitudinally covers the top of the integrated slider 51, and the coil spring connector 66 horizontally and laterally covers the mounting platform 68, both ends of the coil spring connector 66 are connected to one end of a group of coil spring assemblies 61 through a second pin 65, and the other end of each coil spring assembly 61 is connected to the leaf spring positioning connector 64 through the first pin 63, two leaf springs 62 are vertically arranged on both sides of the leaf spring support member 67, the two leaf spring support members 67 are respectively fixed to the inner surfaces of the inner bottom cover 15 and the inner top cover 14, and the two leaf spring positioning connectors 64 are respectively fixed at the middle positions of the two leaf springs 62.

[0053] Furthermore, each group of the coil spring assembly 61 includes a first sleeve 611, a coil spring 612 and a second sleeve 613, and the first sleeve 611, the coil spring 612 and the second sleeve 613 are connected in sequence; the first sleeve 611 includes a guide cylindrical hole 6111, a mounting cylinder 6112, a first stabilizing ring 6113, a first hinge joint 6114 and a first pin shaft hole 6115, the guide cylindrical hole 6111 is arranged inside the mounting cylinder 6112, one end of the mounting cylinder 6112 is arranged inside the first stabilizing ring 6113, the first hinge joint 6114 is arranged inside the first stabilizing ring 6113, and the first hinge joint 6114 is arranged inside the first stabilizing ring 6113. On the outer side of the fixed ring 6113, the first pin hole 6115 is arranged inside the first hinge head 6114, and the first pin 63 is inserted into the first pin hole 6115; the second sleeve 613 includes a second stabilizing ring 6131, a guide column 6132, a mounting head 6133, a second hinge head 6134 and a second pin hole 6135, one end of the guide column 6132 is arranged inside the second stabilizing ring 6131, the mounting head 6133 is arranged on the side of the second stabilizing ring 6131, the second hinge head 6134 is arranged at the end of the mounting head 6133, and the second pin hole 613 5 is arranged inside the second hinge joint 6134, the second pin shaft 65 is inserted into the second pin shaft hole 6135, the guide column 6132 is slidably matched with the guide cylindrical hole 6111, the coil spring 612 is sleeved on the installation cylindrical 6112 and guided by the first stabilizing ring 6113 and the second stabilizing ring 6131, and the two ends of the coil spring 612 are respectively fixed in the first stabilizing ring 6113 and the second stabilizing ring 6131 by screws, so that the coil spring 612 has the functions of anti-instability and compression and tension at the same time; the leaf spring positioning connector 64 includes A rectangular through hole 641, a first mounting groove 642, a third pin shaft hole 643 and a positioning body 644. The positioning body 644 is a rectangular block on which the rectangular through hole 641 is provided. A first lug is provided on the side of the positioning body 644. The first mounting groove 642 is provided in the middle of the first lug. The third pin shaft hole 643 is provided on the side of the first lug. The first hinged head 6114 is installed in the first mounting groove 642. The first pin shaft 63 passes through the first pin shaft hole 6115 and the third pin shaft hole 643. The leaf spring 62 is vertically fixed in the rectangular through hole 641.The spiral spring connector 66 is in the shape of a plate, and includes a connector body 661, a second mounting groove 662 and a third pin shaft hole 663. The left and right ends of the connector body 661 are respectively provided with second lugs, the middle of each second lug is provided with the second mounting groove 662, and the side of each second lug is provided with the third pin shaft hole 663. Each second mounting groove 662 accommodates the second hinge head 6134, and the second pin shaft 65 is inserted into the third pin shaft hole 663 and the second pin shaft hole 6135; the mounting platform 68 is in the shape of an I-beam, and the connector body 661 is transversely fixed to the upper surface of the mounting platform 68; the two leaf spring fixing members 67 are respectively Fixedly mounted on the inner top cover 14 and the inner bottom cover 15, each leaf spring fixing member 67 is a cross-like structure, with a hollowed-out portion at the intersection, the hollowed-out portion is used to avoid the main shaft 41, each leaf spring support member 67 is provided with a plurality of leaf spring mounting slits 671, two rack mounting holes 672 and two guide rail mounting holes 673, the two ends of the leaf spring 62 are detachably mounted in the leaf spring mounting slits 671, and the plurality of leaf spring mounting slits 671 are arranged in parallel to adjust the spacing between the two leaf springs 62, the two ends of the rack 73 of the motion adjustment mechanism 7 are fixedly mounted in the rack mounting holes 672, and the two ends of the guide rail 52 are fixedly mounted in the guide rail mounting holes 673. ;

[0054] Furthermore, the motion adjustment mechanism 7 includes a gear top cover 71, a gear base 72, two left and right racks 73, a one-way gear set 74, a common gear set 75, a common bearing 76, a gear shaft set 77 and a coupling 78. The gear base 72 is fixedly mounted on the mounting platform 68. The gear base 72 is adjacent to the coil spring connector 66. The gear top cover 71 and the gear base 72 are cooperatively mounted. The one-way gear set 74, the common gear set 75, the common bearing 76, the gear shaft set 77 and the coupling 78 are all arranged in the gear top cover 71. The left and right racks 73 are respectively vertically mounted on the lateral sides of the mounting platform 68. The one-way gear set 74 includes a first one-way gear 741 and a second one-way gear 742. The first one-way gear 741 is meshed with the rack 73 on the left side. The second one-way gear 742 is meshed with the rack 73 on the left side. The gear 742 is meshed with the rack 73 on the right side, the ordinary gear group 75 includes a first ordinary gear 751, a second ordinary gear 752 and a third ordinary gear 753, the gear shaft group 77 includes a first gear shaft 771, a second gear shaft 772 and a third gear shaft 773, the first one-way gear 741 and the first ordinary gear 751 share the same first gear shaft 771, the second one-way gear 742 and the third ordinary gear 753 share the same third gear shaft 773, the second ordinary gear 752 is meshed with the first ordinary gear 751 and the third ordinary gear 753 at the same time, and is located between the first ordinary gear 751 and the third ordinary gear 753, the second ordinary gear 752 is connected to the coupling 78 through the second gear shaft 772, and the coupling 78 is connected to the power generation mechanism 8.

[0055] Furthermore, the power generation mechanism 8 includes a generator 81 and a fixing ring 82 . The generator 8 is mounted on an upper surface of one longitudinal side of the mounting platform 68 via the fixing ring 82 . The generator 8 is connected to the coupling 78 .

[0056] Further, the outer top cover 12 includes a first circular plate 121 and a first circular mounting boss 122 located on the outer periphery of the first circular plate 121, the outer wall of the first circular mounting boss 122 is tightly matched with the inner wall of the upper end of the cylindrical float body 11, the inner top cover 14 includes a second circular plate 141 and a first mounting protrusion 142, the second circular plate 141 is screwed to the outer top cover 12, and the first mounting protrusion 142 is symmetrically installed in the middle position below the second circular plate 141; the outer bottom cover 13 includes an inverted cone 131, a second circular mounting boss 13 2. A circular bearing plate 133, a flange mounting plate 134, a flange seal 135 and a sealing gasket 136. The circular bearing plate 133 is arranged on the top of the inverted cone 131. The second circular mounting boss 132 is arranged on the circular bearing plate 133. The outer wall of the second circular mounting boss 132 is tightly matched with the inner wall of the lower end of the cylindrical float body 11. The flange mounting plate 134 is annular and arranged at the bottom of the inverted cone 131. The annular shape is used to pass the main shaft 41. The bottom end cover 45 is arranged on the flange mounting plate 134. The flange seal 135 is installed in cooperation with the flange mounting plate 134, the sealing gasket 136 is installed between the flange mounting plate 134 and the flange seal 135, the flange seal 135 extends downwardly out of a first shaft section 1351, the outer wall of the first shaft section 1351 is used to install the telescopic sealing sleeve 2, the inner wall of the first shaft section 1351 is used to pass the main shaft 41, the inner bottom cover 15 includes a third circular plate 151 and a second mounting protrusion 152, the center of the third circular plate 151 is provided with a center hole 1511, the second mounting protrusion 152 52 is symmetrically arranged near the center hole 1511, the top end of the first linear bearing 42 passes through the center hole 1511 and is installed in the top end cover 44 in cooperation with one of the first washers 43, the bottom end of the first linear bearing 42 is installed in the bottom end cover 45 in cooperation with another of the first washers 43, the side of the second mounting protrusion 152 close to the center of the circle is set to an arc shape with the same curvature as the top end cover 44, and the hollowed-out portion of the leaf spring fixing member 67 is tightly fitted with the second mounting protrusion 152 or the first mounting protrusion 142.

[0057] Furthermore, the telescopic sealing sleeve 2 is sleeved on the portion of the outer bottom cover 13 extending out from the lower side of the main shaft 41, the lower end of the main shaft 41 is detachably installed in the fixing member 3, the upper end of the telescopic sealing sleeve 2 is fixedly installed on the first shaft segment 1351 of the flange seal 135, the upper part of the fixing member 3 is provided with a second shaft segment 31, the lower end of the telescopic sealing sleeve 2 is fixedly installed on the second shaft segment 31, the lower part of the fixing member 3 is a spherical structure, the spherical structure is provided with an anchor chain hole 32, and the anchor chain hole 32 is used for a mooring fixture.

[0058] The working process of the present invention is as follows:

[0059] The leaf spring boundary-constrained self-regulating bistable wave energy converter of the present invention floats on the sea surface through the anchor chain passing through the anchor chain hole 32, and the float 1 oscillates under the excitation of the waves, and the float moves axially relative to the main shaft 41. Fig.14 As shown, the plane where the axes of the two second pins are located when the coil spring assembly 61 is in a horizontal position and the coil spring 612 is compressed and the leaf spring 62 is bent outward to the limit state is defined as the balance plane. When the central axes of the two second pins are in the balance plane, the position of the self-regulating bistable wave energy converter is the unstable equilibrium point in the bistable system. Fig.13 As shown, when the central axes of the two second pins 65 are below the balance plane, the coil spring 612 is at its original length, and the leaf spring 62 is in an unbent state, the position of the self-regulating bistable wave energy converter is the lower stable balance point in the bistable system. Fig.15 As shown, when the axes of the two second pins 65 are above the balance plane, the coil spring 612 is at its original length, and the leaf spring 62 is in an unbent state, the position of the self-regulating bistable wave energy converter is the upper stable balance point in the bistable system. Fig.12 As shown in FIG. 1 , when the central axis of the second pin 65 is lower than the farthest distance of the balance plane, the self-regulating bistable wave energy converter is at the lower limit point. Fig.16 As shown in FIG. 1 , when the central axis of the second pin 65 is higher than the farthest distance of the balance plane, the self-regulating bistable wave energy converter is at the upper limit point. Figure 13 to Figure 14 arrive Fig.15 , when the float 1 oscillates with the waves, the float 1 experiences a process from the lower stable equilibrium point to the equilibrium plane and then to the upper stable equilibrium point, as shown in Figure 15 to Figure 16 , and then continue to move from the upper stable equilibrium point to the upper limit point, such as Figure 16 to Figure 12 , then from the upper limit point to the upper stable equilibrium point, then go through the process from the upper stable equilibrium point to the equilibrium plane and then to the lower stable equilibrium point, and then move from the lower stable equilibrium point to the lower limit point, and so on.

[0060] Specifically, Figure 13 to Figure 14, the float 1 moves downward relative to the main shaft 41, and the main shaft 41 moves upward relative to the float 1, the auxiliary transmission mechanism 5 assists the main shaft 41 to move axially upward, the integrated slider 51 moves upward on the guide rail 52 through the linear bearing 53, the fixing part 3 fixed at the lower end of the main shaft 41 and the flange seal 135 at the lower end of the float 1 are close to each other, and the telescopic sealing sleeve 2 is compressed in the form of corrugations to prevent seawater from penetrating into the device. When the integrated slider 51 moves upward, due to the connection relationship between the mounting platform 68 and the coil spring connector 66, the second pin shaft 65 drives the second sleeve 613 to rotate, and the second sleeve 613 rotates while driving the guide column 6132 to slide in the guide cylindrical hole 6111 of the first sleeve 611, and the first sleeve 611 approaches the second sleeve 613, and the coil spring 612 is compressed accordingly and relies on the first stabilizing ring 6113 and the second The second stabilizing ring 6131 prevents lateral bending instability. At the same time, since the first sleeve 611 squeezes the leaf spring positioning connector 64 through the first pin shaft 63, the leaf spring positioning connector 64 squeezes the leaf spring 62, and the leaf spring 62 bends to both sides to form a "()" shape, storing elastic potential energy when the spiral spring 612 is compressed. The bending of the leaf spring 62 also assists in storing elastic potential energy, avoiding the spiral spring 612 working alone as in a traditional bistable system, causing the system's potential barrier to be too large. The bending of the leaf spring 62 assists the spiral spring 612 to form a self-adjusting bistable structure 6 with dynamic boundary constraints, which is applied to wave energy converters so that they can adjust their own potential barriers with wave excitation. The leaf spring 62 can be easily inserted into the leaf spring mounting holes 671 at different positions of the leaf spring support 67 to adjust the distance between the two, thereby further adjusting the boundary constraints of the self-adjusting bistable structure 6. At the same time, the two racks 73 move downward with the float 1, and drive the first one-way gear 741 to rotate counterclockwise and the second one-way gear 742 to rotate clockwise. When the first one-way gear 741 transmits torque to the first gear shaft 771, and the second one-way gear 742 only idles and does not transmit torque to the coaxial third gear shaft 773, the first common gear 751 rotates counterclockwise, the second common gear 752 rotates clockwise, and the third common gear 753 rotates counterclockwise. Finally, the second common gear 752 drives the coaxial second gear shaft 772 to rotate clockwise, and drives the power generation mechanism 8 to generate electricity through the coupling 78. Until the self-regulating bistable wave energy converter is at the equilibrium plane, the degree of bending of the leaf spring 62 to both sides to form a "()" shape is the largest, the elastic potential energy stored when the spiral spring 612 is compressed is the largest, and the elastic potential energy stored by the bending of the leaf spring 62 is also the largest.

[0061] Continue, as Figure 14 to Figure 15, the main shaft 41 continues to move upward relative to the float 1, and when the integrated slider 51 crosses the balance plane and continues to move upward until the self-adjusting bistable wave energy converter is at the upper stable balance point, at this time, the coil spring 612 changes from a compressed state to an original length state, and the leaf spring 62 changes from a bent state to a normal state. At this time, the coil spring 612 and the leaf spring 62 simultaneously release elastic potential energy and convert it into kinetic energy required by the device, which increases the motion response in the low-frequency region compared to the wave energy converter without the self-adjusting bistable structure 6.

[0062] Continue, as Figure 15 to Figure 16 , the main shaft 41 continues to move upward relative to the float 1 until the self-regulating bistable wave energy converter is at the upper limit point. The height of the upper limit point and the lower limit point depends on the magnitude of the wave excitation force. The greater the wave excitation force, the farther the upper limit position is from the lower limit position, the longer the coil spring 612 is stretched, and the smaller the wave excitation force, the closer the upper limit position is to the lower limit position. When the self-regulating bistable wave energy converter is at the upper limit point, the coil spring 612 is stretched to the limit position. Note that this limit position is not the stretching limit of the spring itself, but the maximum extent to which the spring can be stretched under the current wave excitation force. At this time, the extent to which the leaf spring 62 is concave to both sides to form a ")(" shape is the largest. The excessive kinetic energy of the self-regulating bistable wave energy converter is stretched and stored as elastic potential energy by the coil spring 612, and is assisted by the bending of the leaf spring 62 to store as elastic potential energy, preventing the self-regulating bistable wave energy converter from causing collision damage to components due to excessive kinetic energy.

[0063] On the contrary, if Figure 16 to Figure 15 When the float 1 moves upward, the rack 73 drives the first one-way gear 741 to rotate clockwise and the second one-way gear 742 to rotate counterclockwise. The first one-way gear 741 idles and does not transmit torque to the first gear shaft 771, while the second one-way gear 742 transmits torque to the coaxial third gear shaft 773. Finally, the coaxial second gear shaft 772 is also driven by the second common gear 752 to rotate clockwise and drive the generator 8 to generate electricity through the coupling 78.

[0064] The above specific implementation modes are used to explain the present invention rather than to limit the present invention. Any modification and change made to the present invention within the protection scope of the present invention and the claims shall fall within the protection scope of the present invention.

Claims

1. A leaf spring boundary-constrained self-regulating bistable wave energy converter, characterized in that: The invention comprises a float (1), a telescopic sealing sleeve (2), a fixing member (3), a main transmission mechanism (4), an auxiliary transmission mechanism (5), a self-adjusting bistable mechanism (6), a motion adjustment mechanism (7), a power generation mechanism (8) and a stabilizing mechanism (9), wherein the auxiliary transmission mechanism (5), the self-adjusting bistable mechanism (6), the motion adjustment mechanism (7), the power generation mechanism (8) and the stabilizing mechanism (9) are all integrated and installed in the float (1), and the float (1) is composed of a cylindrical float body (11), an outer top cover (12), an outer bottom cover (13), an inner top cover (14) and an inner bottom cover (15) which are detachably connected. The outer top cover (12) is mounted on the inner top cover (14), the inner top cover (14) is arranged at the top end of the cylindrical float body (11), the inner bottom cover (15) is arranged at the bottom end of the cylindrical float body (11), the outer bottom cover (13) is mounted below the inner bottom cover (15), the telescopic sealing sleeve (2) is sleeved between the outer bottom cover (13) and the fixing member (3), the main transmission mechanism (4) passes through the center of the inner bottom cover (15) and the outer bottom cover (13), the top end of which is fixedly connected to the auxiliary transmission mechanism (5), and the bottom end of which is connected to the fixing member (3) ) are detachably connected, the auxiliary transmission mechanism (5) carries the motion adjustment mechanism (6), the self-adjusting bistable mechanism (7) and the power generation mechanism (8), the stabilizing mechanism (9) is arranged between the outer bottom cover (13) and the inner bottom cover (15), the main transmission mechanism (4) is arranged in the middle position, the auxiliary transmission mechanism (5) is arranged around the main transmission mechanism (4), the self-adjusting bistable mechanism (6) is arranged on both sides of the main transmission mechanism (4), the motion adjustment mechanism (7) is arranged at the top of the main transmission mechanism (4), and the main transmission mechanism (4) is arranged at the bottom of the main transmission mechanism (4). ) is used to convert wave energy into kinetic energy capable of relative motion when the float (1) moves with the waves, the auxiliary transmission mechanism (5) is used to assist the transmission of the main transmission mechanism (4), the self-regulating bistable mechanism (6) is used to enhance the low-frequency motion response of the float (1), the motion adjustment mechanism (7) is used to convert the linear motion of the main transmission mechanism (4) relative to the float (1) into rotational motion, the power generation mechanism (8) is used to realize power generation, and the stabilizing mechanism (9) is used to ensure that the leaf spring boundary-constrained self-regulating bistable wave energy converter has sufficient restoring torque to prevent tipping.

2. A leaf spring boundary-constrained self-regulating bistable wave energy converter according to claim 1, characterized in that: The main transmission mechanism (4) comprises a main shaft (41), a first linear bearing (42), a first washer (43), a top end cover (44) and a bottom end cover (45); the main shaft (41) is vertically arranged at the center of the float (1); the first linear bearing (42) is vertically arranged on a section of the main shaft (41) located at the inner bottom cover (15); the first washer (43) is respectively installed on the upper and lower sides of the first linear bearing (42); the cross section of the top end cover (44) is L-shaped; the cross section of the bottom end cover (45) is a concave shape with the top protruding from the bottom; two first washers (43) are respectively installed in the top end cover (44) and the bottom end cover (45); the bottom end cover (45) is installed on the inner surface of the bottom end of the outer bottom cover (13); and the top end cover (44) is invertedly installed on the upper surface of the inner bottom cover (15).

3. A leaf spring boundary-constrained self-regulating bistable wave energy converter according to claim 2, characterized in that: The stabilizing mechanism (9) comprises a counterweight (91), a counterweight bearing member (92), a counterweight bearing platform (93) and an auxiliary support member (94); the counterweight (91) is in the shape of a truncated cone with a larger top and a smaller bottom, and a cylindrical hole is provided in the middle; the counterweight bearing platform (93) is horizontally mounted on the inverted cone surface (131) of the outer bottom cover (13); a circular hole is provided in the middle of the counterweight bearing platform (93) for passing the first linear bearing (42); the counterweight bearing member (92) comprises a hollow cylindrical section and a circular plate section; the hollow cylindrical section is sleeved on the outside of the first linear bearing (42); the circular plate section is arranged on the counterweight bearing platform (93); the counterweight (91) is sleeved on the counterweight bearing member (92); and the auxiliary support member (94) is mounted on the bottom end cover (45) for auxiliary support of the counterweight bearing platform (93).

4. A leaf spring boundary-constrained self-regulating bistable wave energy converter according to claim 3, characterized in that: The auxiliary transmission mechanism (5) comprises an integrated slider (51), a guide rail (52), a second linear bearing (53) and a bearing cover assembly (54); the integrated slider (51) comprises a connecting block (511), a first slider (512) and a second slider (513); the second slider (513) is a rectangular parallelepiped, the center of which is provided with a cylindrical through hole, the top end of the main shaft (41) is fixedly arranged in the cylindrical through hole, two first sliders (512) are provided, the two first sliders (512) are cylinders, each of the cylinders is equipped with the second linear bearing (53), the two first sliders (512) are respectively arranged at two adjacent corners of the second slider (513), the two first sliders (512) are connected by the connecting block (511), the connecting block (511) is fixed on the side wall of the second sliding block (513); the bearing cover assembly (54) comprises a connecting arm (541) and two bearing covers (542), the two bearing covers (542) are respectively arranged at the top ends of the two first sliding blocks (512) for limiting the second linear bearing (53), the two bearing covers (542) are connected by the connecting arm (541), and the position of the connecting arm (541) and the connecting block (511) are matched; each second linear bearing (53) is vertically provided with the guide rail (52), the bottom end of the guide rail (52) is fixedly arranged on the inner bottom cover (15), and the top end of the guide rail (52) is fixedly arranged on the inner top cover (14).

5. A leaf spring boundary-constrained self-regulating bistable wave energy converter according to claim 4, characterized in that: The self-adjusting bistable mechanism (6) comprises two groups of coil spring assemblies (61), two leaf springs (62), two first pins (63), two leaf spring positioning connectors (64), two second pins (65), a coil spring connector (66), two leaf spring support members (67) and a mounting platform (68); the mounting platform (68) horizontally and longitudinally covers the top of the integrated slider (51), the coil spring connector (66) horizontally and transversely covers the top of the mounting platform (68), and both ends of the coil spring connector (66) are Each of the two leaf springs (62) is connected to one end of a group of the coil spring assemblies (61) via a second pin shaft (65), and the other end of each coil spring assembly (61) is connected to the leaf spring positioning connector (64) via the first pin shaft (63). Two leaf springs (62) are vertically arranged on both sides of the leaf spring support member (67). The two leaf spring support members (67) are respectively fixed to the inner surfaces of the inner bottom cover (15) and the inner top cover (14). The two leaf spring positioning connectors (64) are respectively fixed at the middle positions of the two leaf springs (62).

6. A leaf spring boundary-constrained self-regulating bistable wave energy converter according to claim 5, characterized in that: Each group of the coil spring assembly (61) comprises a first sleeve (611), a coil spring (612) and a second sleeve (613), wherein the first sleeve (611), the coil spring (612) and the second sleeve (613) are connected in sequence; the first sleeve (611) comprises a guide cylindrical hole (6111), a mounting cylinder (6112), a first stabilizing ring (6113), a first hinge joint (6114) and a first pin shaft hole (6115), wherein the guide cylindrical hole (6111) is arranged inside the mounting cylinder (6112), one end of the mounting cylinder (6112) is arranged inside the first stabilizing ring (6113), the first hinge joint (6114) is arranged inside the first stabilizing ring (6113), and the first hinge joint (6114) is arranged inside the first stabilizing ring (6113). The outer side surface of the ring (6113), the first pin shaft hole (6115) is arranged inside the first hinge joint (6114), and the first pin shaft (63) is inserted into the first pin shaft hole (6115); the second sleeve (613) includes a second stabilizing ring (6131), a guide column (6132), a mounting head (6133), a second hinge joint (6134) and a second pin shaft hole (6135), one end of the guide column (6132) is arranged inside the second stabilizing ring (6131), the mounting head (6133) is arranged on the side surface of the second stabilizing ring (6131), the second hinge joint (6134) is arranged at the end of the mounting head (6133), and the second pin shaft hole (6135) The second hinge joint (6135) is arranged inside the second hinge joint (6134), the second pin shaft (65) is inserted into the second pin shaft hole (6135), the guide column (6132) is slidably matched with the guide cylindrical hole (6111), the coil spring (612) is sleeved on the installation cylinder (6112) and guided by the first stabilizing ring (6113) and the second stabilizing ring (6131), and the two ends of the coil spring (612) are respectively fixed in the first stabilizing ring (6113) and the second stabilizing ring (6131) by screws, so that the coil spring (612) has the functions of anti-instability and compression and tension at the same time; the leaf spring positioning connector (64) includes A rectangular through hole (641), a first mounting groove (642), a third pin shaft hole (643) and a positioning body (644), wherein the positioning body (644) is a rectangular block on which the rectangular through hole (641) is provided, a first lug is provided on the side of the positioning body (644), the first mounting groove (642) is provided in the middle of the first lug, the third pin shaft hole (643) is provided on the side of the first lug, the first hinged head (6114) is installed in the first mounting groove (642), and the first pin shaft (63) passes through the first pin shaft hole (6115) and the third pin shaft hole (643), and the leaf spring (62) is vertically fixedly provided in the rectangular through hole (641);The spiral spring connector (66) is in the shape of a plate, and comprises a connector body (661), a second mounting groove (662) and a third pin shaft hole (663). The left and right ends of the connector body (661) are respectively provided with second lugs, the middle of each second lug is provided with the second mounting groove (662), the side of each second lug is provided with the third pin shaft hole (663), each second mounting groove (662) accommodates the second hinge joint (6134), and the second pin shaft (65) is inserted into the third pin shaft hole (663) and the second pin shaft hole (6135); the mounting platform (68) is in the shape of an I-beam, and the connector body (661) is transversely fixed to the upper surface of the mounting platform (68); the two leaf spring fixing members (67) are respectively fixed The leaf spring fixing member (67) is fixedly mounted on the inner top cover (14) and the inner bottom cover (15), each leaf spring fixing member (67) is a cross-shaped structure, and a hollow portion is provided at the intersection, and the hollow portion is used to avoid the main shaft (41). Each leaf spring supporting member (67) is provided with a plurality of leaf spring mounting slits (671), two rack mounting holes (672) and two guide rail mounting holes (673). The two ends of the leaf spring (62) are detachably mounted in the leaf spring mounting slits (671), and the plurality of leaf spring mounting slits (671) are arranged in parallel to adjust the spacing between the two leaf springs (62). The two ends of the rack (73) of the motion adjustment mechanism (7) are fixedly mounted in the rack mounting holes (672), and the two ends of the guide rail (52) are fixedly mounted in the guide rail mounting holes (673). ; 7. A leaf spring boundary-constrained self-regulating bistable wave energy converter according to claim 6, characterized in that: The motion adjustment mechanism (7) comprises a gear top cover (71), a gear base (72), two left and right racks (73), a one-way gear set (74), a common gear set (75), a common bearing (76), a gear shaft set (77) and a coupling (78); the gear base (72) is fixedly mounted on the mounting platform (68); the gear base (72) is adjacent to the spiral spring connector (66); the gear top cover (71) and the gear base (72) are mounted in coordination; The one-way gear set (74), the common gear set (75), the common bearing (76), the gear shaft set (77) and the coupling (78) are all arranged in the gear top cover (71); the left and right racks (73) are respectively vertically mounted on the lateral sides of the mounting platform (68); the one-way gear set (74) comprises a first one-way gear (741) and a second one-way gear (742); the first one-way gear (741) is meshed with the left rack (73); the second one-way gear (742) is meshed with the left rack (73); The wheel (742) is meshed with the rack (73) on the right side. The ordinary gear set (75) includes a first ordinary gear (751), a second ordinary gear (752) and a third ordinary gear (753). The gear shaft set (77) includes a first gear shaft (771), a second gear shaft (772) and a third gear shaft (773). The first one-way gear (741) and the first ordinary gear (751) share the same first gear shaft (771). The second one-way gear (742) and the third ordinary gear (753) share the same third gear shaft (773). The second ordinary gear (752) is meshed with the first ordinary gear (751) and the third ordinary gear (753) at the same time and is located between the first ordinary gear (751) and the third ordinary gear (753). The second ordinary gear (752) is connected to the coupling (78) through the second gear shaft (772). The coupling (78) is connected to the power generation mechanism (8).

8. A leaf spring boundary-constrained self-regulating bistable wave energy converter according to claim 7, characterized in that: The power generation mechanism (8) comprises a generator (81) and a fixing ring (82); the generator (8) is mounted on an upper surface of one longitudinal side of the mounting platform (68) via the fixing ring (82); and the generator (8) is connected to the coupling (78).

9. A leaf spring boundary-constrained self-regulating bistable wave energy converter according to claim 6, characterized in that: The outer top cover (12) comprises a first circular plate (121) and a first circular mounting boss (122) located on the outer periphery of the first circular plate (121), the outer wall of the first circular mounting boss (122) tightly matches the inner wall of the upper end of the cylindrical float body (11); the inner top cover (14) comprises a second circular plate (141) and a first mounting convex block (142), the second circular plate (141) is screwed to the outer top cover (12), and the first mounting convex block (142) is symmetrically mounted at a middle position below the second circular plate (141); the outer bottom cover (13) comprises an inverted cone surface (131), a second circular mounting boss (132), a circular A ring bearing plate (133), a flange mounting plate (134), a flange seal (135) and a sealing gasket (136); the ring bearing plate (133) is arranged on the top of the inverted cone surface (131); the second ring mounting boss (132) is arranged on the ring bearing plate (133); the outer wall of the second ring mounting boss (132) is tightly matched with the inner wall of the lower end of the cylindrical float body (11); the flange mounting plate (134) is annular and is arranged at the bottom of the inverted cone surface (131); the annular shape is used to pass the main shaft (41); the bottom end cover (45) is arranged on the flange mounting plate (134); the method The flange seal (135) is installed in cooperation with the flange mounting plate (134), the sealing gasket (136) is installed between the flange mounting plate (134) and the flange seal (135), the flange seal (135) extends downwardly out of a first shaft section (1351), the outer wall of the first shaft section (1351) is used to install the telescopic sealing sleeve (2), the inner wall of the first shaft section (1351) is used to pass the main shaft (41), the inner bottom cover (15) includes a third circular plate (151) and a second mounting protrusion (152), the center of the third circular plate (151) is provided with a center hole (1511), the second mounting protrusion (152) are symmetrically arranged near the center hole (1511), the top end of the first linear bearing (42) passes through the center hole (1511) and is installed in the top end cover (44) in cooperation with one of the first washers (43), the bottom end of the first linear bearing (42) is installed in the bottom end cover (45) in cooperation with another of the first washers (43), the side of the second mounting protrusion (152) close to the center of the circle is set to an arc shape with the same arc as the top end cover (44), and the hollowed-out part of the leaf spring fixing member (67) is tightly fitted with the second mounting protrusion (152) or the first mounting protrusion (142).

10. A leaf spring boundary-constrained self-regulating bistable wave energy converter according to claim 9, characterized in that: The telescopic sealing sleeve (2) is sleeved on the portion of the main shaft (41) extending out of the outer bottom cover (13) at the lower side; the lower end of the main shaft (41) is detachably mounted in the fixing member (3); the upper end of the telescopic sealing sleeve (2) is fixedly mounted on the first shaft section (1351) of the flange sealing member (135); the upper part of the fixing member (3) is provided with a second shaft section (31); the lower end of the telescopic sealing sleeve (2) is fixedly mounted on the second shaft section (31); the lower part of the fixing member (3) is a spherical structure; the spherical structure is provided with an anchor chain hole (32); the anchor chain hole (32) is used for a mooring fixing device.

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