Mechanical energy storage device

Abstract

The invention relates to a mechanical energy storage device, and relates to the technical field of energy storage. The mechanical energy storage device comprises the first lever, the medium bodies and the medium energy storage mechanism, the first medium body and the second medium body which can inject or discharge media are arranged on the two sides of the first lever, the levers are directly driven to rotate through the gravitational potential energy change of the media, and therefore a traditional gear transmission link can be omitted, friction loss is reduced, and the mechanical energy storage efficiency is improved. Therefore, the energy conversion efficiency is greatly improved; in addition, rapid energy storage and release can be achieved through flowing of media, and therefore inertia delay in mechanical transmission can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage, and in particular to a mechanical energy storage device. Background Art

[0002] With the large-scale application of renewable energy and the increasing demand for grid peak regulation, mechanical energy storage technology has become a research hotspot due to its high efficiency, long life, and environmentally friendly characteristics. Currently, mainstream mechanical energy storage methods include pumped hydro, compressed air storage, and flywheel storage, but these technologies still have many limitations in practical application.

[0003] In recent years, energy storage technology based on the lever principle has attracted attention due to its simple structure and strong controllability. However, the low energy efficiency of traditional lever devices has prevented them from being widely used. Summary of the Invention

[0004] The present invention provides a mechanical energy storage device for solving at least one of the above-mentioned technical problems.

[0005] The present invention provides a mechanical energy storage device, comprising:

[0006] a first lever having a first fulcrum, wherein the first lever is rotatable about the first fulcrum;

[0007] a dielectric body comprising a first dielectric body and a second dielectric body respectively disposed on both sides of the first fulcrum, the first dielectric body and the second dielectric body respectively being connected to the lower side of the first lever; and

[0008] a dielectric energy storage mechanism, located above the first lever and connected to the first dielectric body and the second dielectric body;

[0009] After the medium energy storage mechanism completes injecting the medium into the first medium body, the first lever rotates in a first direction, causing the height of the first medium body to decrease to a first preset height and the height of the second medium body to increase to a second preset height; when the first medium body continues to descend from the first preset height, the first lever outputs energy at an end close to the first medium body, and the first medium body discharges the medium into the medium energy storage mechanism;

[0010] After the medium energy storage mechanism completes injecting the medium into the second medium body, the first lever rotates in a second direction opposite to the first direction, so that the height of the first medium body rises to a second preset height and the height of the second medium body decreases to the first preset height; when the second medium body continues to descend from the first preset height, the first lever outputs energy at one end close to the second medium body, and the second medium body discharges the medium into the medium energy storage mechanism.

[0011] In one embodiment, the first dielectric body includes a first mass block, the second dielectric body includes a second mass block, the first mass block and the second mass block are symmetrical about the first fulcrum, and are respectively connected to the first lever;

[0012] When the height of the first dielectric body is lowered to a first preset height and the height of the second dielectric body is raised to a second preset height, the second mass block is locked to the second preset height position, so that the first mass block can be lowered from the first preset height;

[0013] When the height of the first dielectric body rises to the second preset height and the height of the second dielectric body falls to the first preset height, the first mass block is locked to the second preset height position, so that the second mass block can fall from the first preset height.

[0014] In one embodiment, the first medium body includes a first hydraulic cylinder mechanism connected to the first mass block, and the second medium body includes a second hydraulic cylinder mechanism connected to the second mass block.

[0015] After the medium is injected into the first hydraulic cylinder mechanism, the first lever rotates in a first direction, so that the height of the first medium body is reduced to a first preset height and the height of the second medium body is increased to a second preset height; when the first medium body continues to descend from the first preset height, the first lever outputs energy at one end close to the first medium body, and the first hydraulic cylinder mechanism discharges the medium into the medium energy storage mechanism;

[0016] After the medium is injected into the second hydraulic cylinder mechanism, the first lever rotates in the second direction, so that the height of the second medium body is reduced to the first preset height and the height of the first medium body is increased to the second preset height; when the second medium body continues to descend from the first preset height, the first lever outputs energy at one end close to the second medium body, and the second hydraulic cylinder mechanism discharges the medium to the medium energy storage mechanism.

[0017] In one embodiment, a first box body and a second box body are respectively provided at both ends of the upper side of the first lever, and a guide pipe and an exhaust pipe are respectively connected between the first box body and the second box body;

[0018] When the first lever rotates in a first direction, the liquid in the second box flows into the first box through the guide tube; when the first lever rotates in a second direction, the liquid in the first box flows into the second box through the guide tube.

[0019] In one embodiment, the first hydraulic cylinder mechanism and the second hydraulic cylinder mechanism both include:

[0020] A cylinder, which can discharge the medium outward or inject the medium into it;

[0021] a piston head, the piston head being disposed in the cylinder body and being capable of moving up and down in the cylinder body; and

[0022] a connecting rod, connected to the piston head and the first mass block or the second mass block respectively;

[0023] The first box and the second box have the same weight, and the capacity of the first box and the second box is smaller than the capacity of the cylinder.

[0024] In one embodiment, a locking mechanism is further included, which is an electrically controlled locking mechanism. The locking mechanism is configured to lock the second mass block to a second preset height position when the height of the first dielectric body is lowered to a first preset height and the height of the second dielectric body is raised to a second preset height; and when the height of the first dielectric body is raised to the second preset height and the height of the second dielectric body is lowered to the first preset height, the first mass block is locked to the second preset height position.

[0025] In one embodiment, the medium energy storage mechanism includes a medium energy storage box, and a three-way valve is provided at the lower end of the medium energy storage box, wherein the first port, the second port, and the third port of the three-way valve are respectively connected to the output port of the medium energy storage box, the input pipe in the first medium body, and the input pipe in the second medium body, and the output pipe in the first medium body and the output pipe in the second medium body are respectively connected to the input port of the medium energy storage box;

[0026] The second port and the third port are not opened at the same time.

[0027] In one embodiment, the dielectric energy storage mechanism includes:

[0028] a second lever having a second fulcrum, the second lever being rotatable about the second fulcrum, the second lever being perpendicular to the first lever;

[0029] a first dielectric energy storage tank disposed on the second lever; and

[0030] a second medium energy storage tank, which is arranged on the second lever, wherein the first medium energy storage tank and the second medium energy storage tank are symmetrically arranged about the center of the second fulcrum;

[0031] The output port of the first medium energy storage box is connected to the input pipe in the first medium body, and the input port of the first medium energy storage box is connected to the output pipe in the second medium body;

[0032] The output port of the second medium energy storage box is communicated with the input pipe in the second medium body, and the input port of the second medium energy storage box is communicated with the output pipe in the first medium body.

[0033] In one embodiment, the distance between the output port of the first medium energy storage box and the second support point is greater than the distance between the second support point and an end of the first medium energy storage box opposite to the output port of the first medium energy storage box;

[0034] The distance between the output port of the second medium energy storage box and the second support point is greater than the distance between the second support point and an end of the second medium energy storage box opposite to the output port of the second medium energy storage box.

[0035] In one embodiment, a movable guiding mechanism is further included, which is connected to the first medium body and the second medium body respectively. The movable guiding mechanism is constructed as a slide rail mechanism or a slide groove mechanism, which can enable the first medium body and the second medium body to move upward or downward in a straight line.

[0036] Compared with the existing technology, the advantage of the present invention is that by arranging a first medium body and a second medium body that can inject or discharge the medium on both sides of the first lever, the change in the gravitational potential energy of the medium between the medium energy storage mechanism and the first medium body or the second medium body is used to directly drive the lever to rotate, thereby eliminating the traditional gear transmission link, reducing friction loss, and thus greatly improving the energy conversion efficiency; in addition, by adopting the flow of the medium, rapid energy storage and release can be achieved, thereby avoiding inertia delay in mechanical transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Hereinafter, the present invention will be described in more detail based on embodiments with reference to the accompanying drawings.

[0038] Figure 1 is a cross-sectional view of a mechanical energy storage device according to an embodiment of the present invention, wherein the first lever is in a balanced position;

[0039] Figure 2a yes Figure 1 A schematic structural diagram of the first dielectric body is shown, wherein the first input tube and the first output tube are not shown;

[0040] Figure 2b is a schematic structural diagram of a first dielectric body in another embodiment of the present invention;

[0041] Figure 3ayes Figure 1 A schematic structural diagram of the second dielectric body is shown, wherein the second input tube and the second output tube are not shown;

[0042] Figure 3b is a schematic structural diagram of a second dielectric body in another embodiment of the present invention;

[0043] Figure 4 yes Figure 1 A schematic structural diagram of the first dielectric body is shown, wherein the first traction plate mechanism is not shown;

[0044] Figure 5 yes Figure 1 A schematic structural diagram of the second dielectric body is shown, wherein the second traction plate mechanism is not shown;

[0045] Figure 6 is a cross-sectional view of the mechanical energy storage device in an embodiment of the present invention, showing that when the first lever rotates clockwise, the first dielectric body is at a second predetermined height position;

[0046] Figure 7 is a cross-sectional view of a mechanical energy storage device in an embodiment of the present invention, showing that when the first lever rotates clockwise, the first dielectric body is at a first predetermined height position and the first mass is locked;

[0047] Figure 8 is a cross-sectional view of a mechanical energy storage device according to an embodiment of the present invention, showing that when the first lever rotates clockwise, the second piston head contacts the bottom of the second cylinder;

[0048] Figure 9 is a cross-sectional view of the mechanical energy storage device in an embodiment of the present invention, showing that when the first lever rotates counterclockwise, the second dielectric body is at a second predetermined height position;

[0049] Figure 10 is a cross-sectional view of a mechanical energy storage device in an embodiment of the present invention, showing that when the first lever rotates counterclockwise, the second dielectric body is at a first predetermined height position and the second mass is locked;

[0050] Figure 11 is a cross-sectional view of a mechanical energy storage device according to an embodiment of the present invention, showing that when the first lever rotates counterclockwise, the first piston head contacts the bottom of the first cylinder;

[0051] Figure 12 is a cross-sectional view of a mechanical energy storage device according to an embodiment of the present invention, showing a single dielectric energy storage tank;

[0052] Figure 13 FIG. 4 is a cross-sectional view of a mechanical energy storage device according to another embodiment of the present invention, showing a first dielectric energy storage tank and a second dielectric energy storage tank.

[0053] Reference numerals:

[0054] 100, first lever; 101, first fulcrum; 110, first housing; 120, second housing; 130, guide pipe; 140, exhaust pipe; 200, first medium body; 210, first hydraulic cylinder mechanism; 220, first mass block; 240, first traction plate mechanism; 241, first left slider; 242, first right slider; 243, first traction rope; 244, first traction plate; 245, first connecting rod; 224, first unlocking channel; 225, first locking channel; 2251, first roller; 211, first cylinder; 212, first piston head; 213, first connecting rod; 214, first one-way valve; 221, first input pipe; 222, first output pipe; 300, second medium body; 310, second hydraulic cylinder mechanism; 320, second mass block; 340, second traction plate mechanism; 341, second left slider; 342, first Second right slider; 343, second traction rope; 344, second traction plate; 345, second connecting rod; 324, second unlocking channel; 325, second locking channel; 3251, second roller; 311, second cylinder; 312, second piston head; 313, second connecting rod; 314, second one-way valve; 321, second input pipe; 322, second output pipe; 500, locking mechanism; 501, locking tongue; 600, second lever; 601, second fulcrum; 610, first dielectric energy storage box; 620, second dielectric energy storage box; 611, output port of first dielectric energy storage box; 612, input port of first dielectric energy storage box; 621, output port of second dielectric energy storage box; 622, input port of second dielectric energy storage box; 630, dielectric energy storage box; 631, three-way valve; 6311, first port; 6312, second port; 6313, third port. DETAILED DESCRIPTION

[0055] The present invention will be further described below with reference to the accompanying drawings.

[0056] The present invention provides a mechanical energy storage device comprising a lever mechanism and a dielectric body. The dielectric bodies are symmetrically arranged on either side of the lever mechanism. The lever mechanism is capable of rotating about its fulcrum, and the dielectric bodies on either side can move upward or downward. When the dielectric body on one side moves downward, it can output gravitational potential energy through the end of the lever and discharge the dielectric inside it, thereby achieving the purpose of mechanical energy storage. The principle and method of the mechanical energy storage device of the present invention utilizes the principle of an equal-arm lever. By changing the position of the "weight" on the lever, the balance of the lever is disturbed, causing the lever to rotate, achieving the purpose of storing energy upward on one side and releasing gravitational potential energy downward on the other side, thereby outputting energy outward.

[0057] Specifically, if Figure 1-Figure 7As shown, the lever mechanism includes a first lever 100 and a dielectric body, wherein the first lever 100 is an equal-arm lever. The first lever 100 has a first fulcrum 101, about which the first lever 100 can rotate. The first fulcrum 101 can be, for example, the point where the first bracket is connected to the first lever 100. The first bracket can include, for example, a support frame connecting rod, wherein the connecting rod is connected to the lower side of the first lever 100 and extends perpendicularly to the extension direction of the first lever 100. The support frame can be, for example, a tripod or other support structure capable of providing a support function, which is rotatably connected to the connecting rod, for example, via a bearing, so that the connecting rod and the first lever 100 can rotate relative to the support frame.

[0058] like Figure 1 As shown, the dielectric body includes a first dielectric body 200 and a second dielectric body 300 respectively disposed on both sides of the first fulcrum 101. The first dielectric body 200 and the second dielectric body 300 are respectively connected to the lower side of the first lever 100. The first dielectric body 200 and the second dielectric body 300 are symmetrically disposed about the first fulcrum 101. Figure 1 The state where the first lever 100 is located at the equilibrium position is shown.

[0059] The mechanical energy storage device of the present invention also includes a dielectric energy storage mechanism, which is located above the first lever 100 and is connected to the first dielectric body 200 and the second dielectric body 300 via pipelines respectively. The dielectric energy storage mechanism can inject medium into the first dielectric body 200 to assist the first lever 100, the first dielectric body 200 and the second dielectric body 300 to complete their operations; when the first lever 100, the first dielectric body 200 and the second dielectric body 300 complete their corresponding operations, the medium in the first dielectric body 200 returns to the dielectric energy storage mechanism, and the dielectric energy storage mechanism injects medium into the second dielectric body 300 to assist the first lever 100, the first dielectric body 200 and the second dielectric body 300 to complete their operations; when the first lever 100, the first dielectric body 200 and the second dielectric body 300 complete their corresponding operations, the medium in the second dielectric body 300 returns to the dielectric energy storage mechanism, so that the next cycle can be carried out.

[0060] In the initial stage of activation, the first lever 100 may be tilted toward the first dielectric body 200 (or the second dielectric body 300 ).

[0061] The medium energy storage mechanism injects the medium into the first medium body 200 until the injection is completed, and the first lever 100 rotates in the first direction (counterclockwise) (eg Figures 9-11As shown, the first dielectric body 200 is lowered to a first preset height and the second dielectric body 300 is raised to a second preset height. When the first dielectric body 200 further descends from the first preset height, the end of the first lever 100 proximate to the first dielectric body 200 outputs energy, and the first dielectric body 200 discharges dielectric into the dielectric energy storage mechanism, thereby storing energy.

[0062] When the medium energy storage mechanism injects the medium into the second medium body 300, the first lever 100 rotates in a second direction (clockwise) opposite to the first direction (eg Figure 6-Figure 8 As shown, the first dielectric body 200 is raised to the second preset height, and the second dielectric body 300 is lowered to the first preset height. When the second dielectric body 300 further descends from the first preset height, the first lever 100 outputs energy at its end proximal to the second dielectric body 300, and the second dielectric body 300 discharges dielectric into the dielectric energy storage mechanism, thereby storing energy.

[0063] The medium can be a fluid, such as industrial oil (silicone oil) and the like.

[0064] Therefore, the mechanical energy storage device of the present invention can, on the one hand, achieve the decoupling of physical energy storage and mechanical transmission, that is, replace the traditional gear transmission with the medium potential energy, thereby solving the efficiency and wear problems; on the other hand, it can achieve bidirectional energy path optimization, that is, its first medium body 200 and the second medium body 300 can support bidirectional medium flow, thereby realizing seamless switching of energy storage and release.

[0065] In an optional embodiment, if Figure 12 As shown, the medium energy storage mechanism includes a single medium energy storage box 630, which is located above the first lever 100. A three-way valve 631 is provided at the lower end of the medium energy storage box 630. The first port 6311, the second port 6312, and the third port 6313 of the three-way valve 631 are respectively connected to the output port of the medium energy storage box 630, the first input pipe 221 in the first medium body 200, and the second input pipe 321 in the second medium body 300. The first output pipe 222 in the first medium body 200 and the second output pipe 322 in the second medium body 300 are respectively connected to the input port of the medium energy storage box 630.

[0066] The second port 6312 and the third port 6313 are not opened at the same time. The three-way valve 631 may be an electrically controlled valve, for example, which can be controlled to ensure that the second port 6312 and the third port 6313 are not opened at the same time.

[0067] That is, when the second port 6312 is open and the third port 6313 is closed, that is, the first port 6311 and the second port 6312 of the three-way valve 631 are connected, the medium can be input into the first medium body 200 through the first input pipe 221; conversely, when the second port 6312 is closed and the third port 6313 is open, that is, the first port 6311 and the third port 6313 of the three-way valve 631 are connected, the medium can be input into the second medium body 300 through the second input pipe 321.

[0068] When the second port 6312 and the third port 6313 are closed at the same time, the medium in the first hydraulic cylinder mechanism 210 in the first medium body 200 or the second hydraulic cylinder mechanism 310 in the second medium body 300 can be discharged to the input port of the medium energy storage tank 630 through the first output pipe 222 or the second output pipe 322 and enter the medium energy storage tank 630.

[0069] The above process can be repeated so that the dielectric energy storage box 630 can be linked with the first dielectric body 200 and the second dielectric body 300 respectively.

[0070] In another optional embodiment, the medium energy storage mechanism still adopts a lever mechanism.

[0071] like Figure 13 As shown, in this embodiment, the dielectric energy storage mechanism includes a second lever 600, a first dielectric energy storage box 610, and a second dielectric energy storage box 620. The second lever 600 has a second fulcrum 601, about which the second lever 600 can rotate. The second lever 600 is perpendicular to the first lever 100. The second fulcrum 601 can be, for example, the point where the second bracket connects to the second lever 600. The second bracket can include, for example, a support frame connecting rod, wherein the connecting rod is connected to the underside of the second lever 600 and extends in the width direction. The support frame can be, for example, a tripod or other support structure capable of providing support. The connecting rod is rotatably connected to the connecting rod, for example, via a bearing, so that the connecting rod and the second lever 600 can rotate relative to the support frame.

[0072] The first dielectric energy storage tank 610 is disposed on the second lever 600 . The second dielectric energy storage tank 620 is disposed on the second lever 600 . The first dielectric energy storage tank 610 and the second dielectric energy storage tank 620 are centrally symmetrically disposed about the second fulcrum 601 .

[0073] The output port 611 of the first dielectric energy storage box is connected to the first input pipe 221 in the first dielectric body 200, and the input port 612 of the first dielectric energy storage box is connected to the second output pipe 322 in the second dielectric body 300; the output port 621 of the second dielectric energy storage box is connected to the second input pipe 321 in the second dielectric body 300, and the input port 622 of the second dielectric energy storage box is connected to the first output pipe 222 in the first dielectric body 200. The input port 612 of the first dielectric energy storage box and the output port 621 of the second dielectric energy storage box are respectively located at the two ends of the second lever 600. Furthermore, the distance L1 between the output port 611 of the first dielectric energy storage box and the second fulcrum 601 is greater than the distance L2 between the second fulcrum 601 and the upper end of the first dielectric energy storage box 610 opposite to the output port 611 of the first dielectric energy storage box (as shown in FIG. Figure 13 ), so that when the first medium energy storage tank 610 is filled, the balance at both ends of the second lever 600 can be changed and reversed; similarly, the distance L1 between the output port 621 of the second medium energy storage tank and the second fulcrum 601 is greater than the distance L2 between the second fulcrum 601 and the other end of the second medium energy storage tank 620 opposite to the output port 621 of the second medium energy storage tank (as shown in FIG. Figure 13 shown).

[0074] Therefore, when the balance of the second lever 600 is broken and it rotates counterclockwise around the second fulcrum 601, the first dielectric energy storage box 610 rotates along with the second lever 600 to tilt, and the output port 611 of the first dielectric energy storage box is downward. Therefore, the medium in the first dielectric energy storage box 610 passes through the output port 611 of the first dielectric energy storage box and is input into the first dielectric body 200 via the first input pipe 221 in the first dielectric body 200.

[0075] After the medium in the first medium storage tank 610 is discharged, the first lever 100, the first medium body 200, and the second medium body 300 below perform corresponding operations, and the first medium body 200 can discharge the medium into the second medium storage tank 620, causing the second lever 600 to rotate clockwise around the second fulcrum 601. Accordingly, the second medium storage tank 620 rotates along with the second lever 600 and tilts until the output port 621 of the second medium storage tank faces downward. Therefore, the medium in the second medium storage tank 620 can pass through the output port 621 of the second medium storage tank and be input into the second medium body 300 via the second input pipe 321 in the second medium body 300.

[0076] After the medium in the second medium storage tank 620 is discharged, the first lever 100, the first medium body 200, and the second medium body 300 below perform corresponding operations, and the second medium body 300 can discharge the medium into the first medium storage tank 610, causing the second lever 600 to rotate counterclockwise around the second fulcrum 601. Accordingly, the first medium storage tank 610 rotates along with the second lever 600 to tilt, and the output port 611 of the first medium storage tank is downward. Therefore, the medium in the first medium storage tank 610 passes through the output port 611 of the first medium storage tank and is input into the first medium body 200 via the first input pipe 221 in the first medium body 200, thereby starting the next cycle.

[0077] like Figure 2a and Figure 4 As shown, the first medium body 200 and the second medium body 300 both include hydraulic cylinder mechanisms. For example, the first medium body 200 includes a first hydraulic cylinder mechanism 210, and the second medium body 300 includes a second hydraulic cylinder mechanism 310, and the two are symmetrically arranged about the first fulcrum 101. After the medium energy storage mechanism completes injecting medium into the first hydraulic cylinder mechanism 210, the first lever 100 rotates in a first direction, at which point the second medium body 300 moves upward and the first medium body 200 moves downward. Alternatively, after the medium energy storage mechanism completes injecting medium into the second hydraulic cylinder mechanism 310, the first lever 100 rotates in a second direction, at which point the first medium body 200 moves upward and the second medium body 300 moves downward.

[0078] like Figure 1 As shown, a first housing 110 and a second housing 120 are respectively disposed at the upper ends of the first lever 100, symmetrically arranged about a first fulcrum 101. A flow conduit 130 and an exhaust pipe 140 are respectively connected between the first housing 110 and the second housing 120. When the first lever 100 rotates in a first direction, liquid in the second housing 120 flows into the first housing 110 through the flow conduit 130. When the first lever 100 rotates in a second direction, liquid in the first housing 110 flows into the second housing 120 through the flow conduit 130.

[0079] The liquid in the first tank 110 and the second tank 120 may be water, for example.

[0080] Furthermore, if Figure 2a and Figure 4As shown, the first hydraulic cylinder mechanism 210 includes a first cylinder body 211, a first piston head 212, and a first connecting rod 213. The first cylinder body 211 can discharge or inject a medium. The first piston head 212 is disposed within the first cylinder body 211 and can move up and down within the first cylinder body 211. The upper end of the first connecting rod 213 is hingedly connected to the first mass block 220, described below, and the lower end of the first connecting rod 213 is hingedly connected to the first piston head 212.

[0081] Likewise, if Figure 3a and Figure 5 As shown, the second hydraulic cylinder mechanism 310 includes a second cylinder body 311, a second piston head 312, and a second connecting rod 313. The second cylinder body 311 can discharge or inject medium. The second piston head 312 is disposed within the second cylinder body 311 and can move up and down within the second cylinder body 311. The upper end of the second connecting rod 313 is hingedly connected to the second mass block 320, described below, and the lower end of the second connecting rod 313 is hingedly connected to the second piston head 312.

[0082] The capacities of the first tank 110 and the second tank 120 are the same and are both smaller than the capacities of the first cylinder 211 and the second cylinder 311 .

[0083] like Figure 4 As shown, a first input pipe 221 and a first output pipe 222 are provided through the first mass block 220, and the first cylinder 211 is connected to the first input pipe 221 and the first output pipe 222 respectively. Figure 4 As shown, a second input pipe 321 and a second output pipe 322 are provided through the second mass block 320 , and the second cylinder 311 is communicated with the second input pipe 321 and the second output pipe 322 respectively.

[0084] The first dielectric body 200 and the second dielectric body 300 both include mass blocks. For example, the first dielectric body 200 includes a first mass block 220 , and the second dielectric body 300 includes a second mass block 320 .

[0085] like Figure 2a and Figure 4 As shown, the first mass block 220 is located above the first cylinder 211. The lower end of the first mass block 220 is hingedly connected to the first connecting rod 213. Figure 3a and Figure 5 As shown, the second mass block 320 is located above the second cylinder 311 , and the lower end of the second mass block 320 is hingedly connected to the second connecting rod 313 .

[0086] Among them, when the height of the first medium body 200 is lowered to the first preset height and the height of the second medium body 300 is raised to the second preset height, the second mass block 320 is locked to the second preset height position, so that the first mass block 220 can descend from the first preset height, and when the first mass block 220 descends from the first preset height, it performs free fall motion, so that the first lever 100 can output the gravitational potential energy of the first medium body 200 and discharge the medium in the first cylinder 211 into the medium storage box above it.

[0087] When the height of the first dielectric body 200 rises to the second preset height and the height of the second dielectric body 300 is lowered to the first preset height, the first mass block 220 is locked to the second preset height position, and the second mass block 320 can descend from the first preset height; and when it descends from the first preset height, it performs a free fall motion, so the first lever 100 can output the gravitational potential energy of the second dielectric body 300 and discharge the medium in the second cylinder 311 into the medium storage box above it.

[0088] Furthermore, if Figure 2a As shown, the mechanical energy storage device of the present invention further includes a first traction plate mechanism 240, and the first traction plate mechanism 240 is connected to the first mass block 220. Figure 2a As shown, the first traction plate mechanism 240 includes a first left slider 241 and a first right slider 242, which are symmetrically arranged relative to the first unlocking channel 224. The first traction plate mechanism 240 also includes a first traction rope 243, a first traction plate 244, and a first connecting rod 245. Two first traction ropes 243 are connected to the first left slider 241 and the first right slider 242, respectively, with their upper ends connected to the first traction plate 244. The upper end of the first traction plate 244 is hingedly connected to the first connecting rod 245, which is hingedly connected to the first lever 100 at its upper end.

[0089] The first traction rope 243 may also be a traction rod, and both ends of the traction rod may be hingedly connected to the first traction plate 244 and the first left slider 241 (first right slider 242 ) respectively.

[0090] A first unlocking channel 224 and a first locking channel 225 are provided in the first mass block 220 , wherein the first unlocking channel 224 extends along the moving direction of the first mass block 220 , and the first locking channel 225 extends along a direction perpendicular to the moving direction of the first mass block 220 .

[0091] Furthermore, if Figure 3aAs shown, the mechanical energy storage device of the present invention also includes a second traction plate mechanism 340, which is connected to the second mass block 320. The second traction plate mechanism 340 includes a second left slider 341 and a second right slider 342, which are symmetrically arranged relative to the second unlocking channel 324. The second traction plate mechanism 340 also includes a second traction rope 343, a second traction plate 344 and a second connecting rod 345. Among them, the number of the second traction ropes 343 is two, which are respectively connected to the second left slider 341 and the second right slider 342, and the upper ends thereof are connected to the second traction plate 344. The upper end of the second traction plate 344 is hingedly connected to the second connecting rod 345, and the upper end of the second connecting rod 345 is hingedly connected to the first lever 100.

[0092] The second traction rope 343 can also be a traction rod, the ends of which can be hingedly connected to the second traction plate 344 and the second left slider 341 (second right slider 342), respectively. The second mass block 320 is provided with a second unlocking channel 324 and a second locking channel 325. The second unlocking channel 324 extends along the movement direction of the second mass block 320, and the second locking channel 325 extends in a direction perpendicular to the movement direction of the second mass block 320.

[0093] After the first lever 100 is close to the side of the first dielectric body 200 and completes one energy output, the first traction plate mechanism 240 is in a locked state. Therefore, when the next energy output starts, the first left slider 241 and the first right slider 242 are respectively located in the corresponding first locking channel 225 (as shown in FIG. Figure 11The first lever 100 rotates in the second direction (clockwise), and the first left slider 241 and the first right slider 242 move upward together with the first mass 220. Therefore, as the first lever 100 rotates, the first mass 220 rises to the second preset height, and the second mass 320 descends to the first preset height. When the first mass block 220 rises to the second preset height position, the locking tongue of the locking mechanism 500 enters the corresponding first locking channel 225, and the first left slider 241 and the first right slider 242 are pushed out of the first locking channel 225 and enter the first unlocking channel 224, so that the first left slider 241 and the first right slider 242 are unlocked from the first mass block 220, and the first mass block 220 is fixed at the current position (i.e., the second preset height position), while the first left slider 241 and the first right slider 242 continue to move upward along the first unlocking channel 224. Correspondingly, the second mass block 320, the second left slider 341 and the second right slider 342 further descend from the first preset height until the first left slider 241 and the first right slider 242 move to the top of the first unlocking channel 224 and make buffering contact with the top plate of the first unlocking channel 224 (for example, this can be achieved by a buffer mechanism to buffer the impact force between the mass block on the opposite side and the top of the cylinder body and the piston and the bottom of the cylinder body to prevent the cylinder top and the cylinder bottom from being damaged due to the impact), and then stop moving further.

[0094] After the first lever 100 is close to the side of the second dielectric body 300 and completes one energy output, the second traction plate mechanism 340 is in a locked state. Therefore, when the next energy output starts, the second left slider 341 and the second right slider 342 are respectively located in the corresponding second locking channels 325 (such as Figure 8The second traction plate mechanism 340 is in the state shown in FIG. 1 ) and is locked with the second mass block 320. Therefore, when the first lever 100 rotates in the first direction (counterclockwise), the second left slider 341 and the second right slider 342 can move upward together with the second mass block 320. Therefore, as the first lever 100 rotates, the first mass block 220 descends to the first predetermined height position, and the second mass block 320 ascends to the second predetermined height position. When the second mass block 320 rises to the second preset height position, the locking tongue of the locking mechanism 500 enters the corresponding second locking channel 325, and the second left slider 341 and the second right slider 342 are pushed out of the second locking channel 325 and enter the second unlocking channel 324, so that the second left slider 341 and the second right slider 342 are unlocked from the second mass block 320, and the second mass block 320 is fixed at the current position (i.e., the second preset height position), while the second left slider 341 and the second right slider 342 continue to move upward along the second unlocking channel 324. Accordingly, the first mass block 220, the first left slider 241 and the first right slider 242 further descend from the first preset height until the second left slider 341 and the second right slider 342 move to the top of the second unlocking channel 324 and make buffering contact with the top plate of the second unlocking channel 324 (for example, this can be achieved through a buffering mechanism to buffer the impact force between the mass block on the opposite side and the top of the cylinder body and the piston and the bottom of the cylinder body to avoid damage to the cylinder top and bottom due to impact)), and then stop moving further.

[0095] Furthermore, rope grooves for threading the first and second pull ropes 243 and 343 are provided on the inner walls of the first unlocking channel 224 and the second unlocking channel 324, respectively. When the first left slider 241 and the first right slider 242 enter the first locking channel 225 from the first unlocking channel 224, the first pull rope 243 is inserted into the corresponding rope grooves. Similarly, when the second left slider 341 and the second right slider 342 enter the second locking channel 325 from the second unlocking channel 324, the second pull rope 343 is inserted into the corresponding rope grooves. The rope grooves are smaller than the sizes of the first and second left sliders 241 and 242, and the second and second left and right sliders 341 and 342, respectively, so that the sliders do not enter the rope grooves.

[0096] Rollers may be provided on the sides of the first left slider 241 and the first right slider 242 as well as the second left slider 341 and the second right slider 342 so that they can enter the corresponding locking channels.

[0097] The mechanical energy storage device of the present invention also includes a locking mechanism 500, which is configured as an electrically controlled locking mechanism. The locking mechanism 500 is configured to lock the height of the first mass block 220 in the first dielectric body 200 when the first dielectric body 200 is raised to a second preset height position, and to lock the height of the second mass block 320 in the second dielectric body 300 when the second dielectric body 300 is raised to a second preset height position.

[0098] More specifically, when the first traction plate mechanism 240 is in the locked state (eg Figure 11 (See the state of the first traction plate mechanism 240 shown in the figure), namely, the first left slider 241 and the first right slider 242 are located in the first locking channel 225. When the first lever 100 rotates clockwise, it drives the first left slider 241, the first right slider 242, and the first mass 220 upward. Because the first mass 220 is connected to the first connecting rod 213, the first mass 220 drives the first connecting rod 213 to move, causing the first piston head 212 to move upward in the first cylinder 211. When the first mass 220 moves until the first piston head 212 contacts the top of the first cylinder 211, it drives the first cylinder 211 upward. Simultaneously, when the first lever 100 rotates clockwise, the second left slider 341 and the second right slider 342 move in the second unlocking channel 324 of the second mass 320 until they enter the second locking channel 325 of the second mass 320 and lock with the second mass 320.

[0099] like Figure 7 As shown, when the first mass block 220 continues to rise to the second preset height position, the lock tongues of the electric-controlled locking mechanism or mechanical locking device located on the left and right sides of the first dielectric body 200 are inserted into the corresponding first locking channels 225, thereby pushing the first left slider 241 and the first right slider 242 out of the corresponding first locking channels 225, respectively. Figure 6 As shown, the first left slider 241 and the first right slider 242 enter the first unlocking channel 224, and the first mass block 220 is locked at the second preset height position by the locking tongue.

[0100] like Figure 7 As shown, the second cylinder 311 of the second dielectric body 300 has descended until it contacts the ground, and the second cylinder 311 stops descending further. However, because the first lever 100 has tilted toward the second dielectric body 300, the liquid in the first tank 110 flows into the second tank 120 through the flow guide 130 (the gas in the second tank 120 flows into the first tank 110 through the exhaust pipe 140). The weight of the second tank 120 increases, causing the first lever 100 to rotate further.

[0101] like Figure 8As shown, as the first lever 100 continues to rotate, the first left slider 241 and the first right slider 242 move upward along the first unlocking channel 224. At the same time, since the first mass block 220 in the first dielectric body 200 is locked at the second preset height position, the second mass block 320 in the second dielectric body 300 can perform free fall motion; and since the second cylinder 311 is in contact with the ground, the second mass block 320 will push the second connecting rod 313, and then push the second piston head 312 to descend in the second cylinder 311; when the first left slider 241 and the first right slider 242 move to the top of the first unlocking channel 224 and make buffer contact with the top plate of the first unlocking channel 224, the two stop moving further; at the same time, the second piston head 312 also descends to make buffer contact with the bottom of the second cylinder 311 and the bottom end of the second mass block 320 makes buffer contact with the top of the second cylinder 311. In other words, as Figure 7 and Figure 8 As shown, the distance d1 that the first left slider 241 and the first right slider 242 move upward along the first unlocking channel 224 is equal to the distance d2 that the second piston head 312 descends in the second cylinder 311. At this point, the first lever 100 is able to convert the gravitational potential energy of the free-falling second dielectric body 300 (second mass 320) into output, and the medium in the second cylinder 311 is discharged, effectively completing one energy output by the first lever 100. Furthermore, as the second piston head 312 descends in the second cylinder 311, the medium in the second cylinder 311 is discharged outward through the second output pipe 322 until the second piston head 312 descends to a buffering contact with the bottom of the second cylinder 311. This empties the medium in the second cylinder 311 and simultaneously completes one energy storage task. During this process, while the first lever 100 outputs gravitational potential energy, the medium in the second cylinder 311 is discharged into the medium energy storage tank, thereby completing the energy storage task. Energy storage and energy output occur simultaneously.

[0102] The next output is the reverse process of the above process.

[0103] Specifically, the medium is input into the first cylinder 211 through the first input pipe 221, so that the weight in the first cylinder 211 begins to increase. When the weight increases to be greater than the weight of the liquid in the second tank 120, the first lever 100 begins to rotate counterclockwise.

[0104] like Figure 8As shown, when the last output was completed, the state of the first dielectric body 200 was: the first mass block 220 was located at the second preset height position and locked, the first left slider 241 and the first right slider 242 were pushed into the first unlocking channel 224, i.e., unlocked from the first mass block 220, and the first piston head 212 was in contact with the top of the first cylinder 211. The state of the second dielectric body 300 was: the second left slider 341 and the second right slider 342 were located in the second locking channel 325 of the second mass block 320, i.e., locked from the second mass block 320, and the second piston head 312 was located at the bottom of the second cylinder 311. The bottom end of the second mass block 320 was located at the top of the second cylinder 311.

[0105] Therefore, when the next output begins, the first mass block 220 must first be unlocked from the second preset height position. For example, the first mass block 220 can be unlocked from the second preset height position upon detecting that medium is being injected into the first medium body 200; or upon detecting that the medium in the second cylinder 311 is empty.

[0106] like Figure 9 As shown, after the medium is injected into the first dielectric body 200 , its weight increases. Since it has been unlocked from the second preset height position, it begins to move downward, while the second dielectric body 300 begins to move upward, and the first lever 100 begins to rotate counterclockwise.

[0107] When the first dielectric body 200 starts to move downward, the first left slider 241 and the first right slider 242 will move downward in the first unlocking channel 224, or move downward following the first mass block 220. Figure 9 and Figure 10 As shown. On the contrary, the process of the second dielectric body 300 starting to move upward is similar to the process of the first dielectric body 200 moving upward described above, that is, the second left slider 341 and the second right slider 342 are located in the second locking channel 325. When the first lever 100 rotates counterclockwise, the second left slider 341 and the second right slider 342 and the second mass block 320 will be driven to rise. Since the second mass block 320 is connected to the second connecting rod 313, the second mass block 320 will drive the second connecting rod 313 to move, causing the second piston head 312 to move upward in the second cylinder 311. When the second mass block 320 moves until the second piston head 312 contacts the top of the second cylinder 311, it can drive the second cylinder 311 to move upward together, as shown in FIG. Figure 9At the same time, the first lever 100 rotates counterclockwise, and the first left slider 241 and the first right slider 242 move downward in the first unlocking channel 224 of the first mass block 220, or move downward following the first mass block 220. When the first mass block 220 and the first cylinder 211 descend until the first cylinder 211 contacts the ground, as shown in FIG. Figure 10 shown.

[0108] At this time, since the first lever 100 has tilted toward the first dielectric body 200, the liquid in the second box 120 flows into the first box 110 through the flow guide tube 130 (the gas in the first box 110 enters the second box 120 through the exhaust pipe 140). When the first box 110 is filled with liquid, the weight of the first lever 100 on the side close to the first dielectric body 200 is increased. At the same time, since the second mass block 320 in the second dielectric body 300 is locked at the second preset height position, Then the first mass block 220 in the first medium body 200 can perform free fall motion, so that the first mass block 220 will push the first connecting rod 213, and then push the first piston head 212 to descend in the first cylinder 211. When the first piston head 212 descends in the first cylinder 211, the medium in the first cylinder 211 will be discharged outward through the first output pipe 222 until the first piston head 212 descends to contact with the bottom of the first cylinder 211, and the medium in the first cylinder 211 is emptied. Figure 11 As shown in the figure, during this process, the first lever 100 can convert the gravitational potential energy of the free-falling first dielectric body 200 (second mass 320) into output, while simultaneously discharging the medium in the first cylinder 211. During this process, while the first lever 100 outputs gravitational potential energy, the medium in the first cylinder 211 is discharged into the dielectric energy storage tank, thereby also completing the energy storage task. In other words, energy storage and energy output occur simultaneously.

[0109] By repeating the above process, the first lever 100 can alternately output the gravitational potential energy of the first medium body 200 and the second medium body 300; at the same time, the medium in the hydraulic cylinder mechanism on one side of the first lever 100 is transferred to the hydraulic cylinder mechanism on the other side of the first lever 100 through the medium energy storage box.

[0110] A buffer mechanism may be provided between the first mass block 220 and the first cylinder 211 and between the second mass block 320 and the second cylinder 311 to prevent the first cylinder 211 and the second cylinder 311 from being damaged by the impact force of the first mass block 220 and the second mass block 320 when they descend.

[0111] Similarly, buffer mechanisms may be provided between the first traction plate 244 and the first mass block 220, between the first left slider 241 and the first traction plate 244, between the first right slider 242 and the first traction plate 244, and between the second traction plate 344 and the second mass block 320, between the second left slider 341 and the second traction plate 344, and between the second right slider 342 and the second traction plate 344 to cushion the impact force.

[0112] Furthermore, both ends of the first lever 100 can be respectively connected to an output actuator, which can be, for example, a gear mechanism, a rack-and-pinion mechanism, a worm gear mechanism, etc. When the end of the first lever 100 close to the first dielectric body 200 descends, it can drive the actuator close to the first dielectric body 200 to operate, that is, convert the gravitational potential energy of the first dielectric body 200 into kinetic energy of the actuator; at the same time, the end of the first lever 100 close to the second dielectric body 300 rises, and it and the actuator close to the second dielectric body 300 rotate idly, that is, this end does not output; conversely, when the end of the first lever 100 close to the second dielectric body 300 descends, it can drive the actuator close to the second dielectric body 300 to operate, that is, convert the gravitational potential energy of the second dielectric body 300 into kinetic energy of the actuator; at the same time, the end of the first lever 100 close to the first dielectric body 200 rises, and it and the actuator close to the first dielectric body 200 rotate idly, that is, this end does not output.

[0113] By connecting the actuators at both ends of the first lever 100, intermittent energy output can be achieved. As can be understood, since the trajectory of the end of the first lever 100 during descent and ascent is an arc, more specifically, a circular arc centered at the first fulcrum 101, the actuators on both sides can be configured to have the same arc-shaped structure, such as an arc-shaped rack.

[0114] In the above process, since the first medium body 200 and the second medium body 300 are symmetrical structures, if there is no first box body 110 and second box body 120 connected to each other on the first lever 100, then once the medium energy storage box starts to inject medium into the first medium body 200 or the second medium body 300, the first lever 100 will start to rotate; by providing the connected first box body 110 and second box body 120, only when the medium is injected into the first medium body 200 or the second medium body 300 and its weight is greater than that of the opposite side, the first lever 100 can be tilted toward the medium body into which the medium is injected. At this time, the liquid in the box body will also flow toward the medium body, thereby accelerating the increase in weight on one side of the medium body, so that the medium body can move further downward, thereby achieving the purpose of pushing the first lever 100 to move downward; and each slider in each traction mechanism can move downward into the corresponding locking channel.

[0115] Furthermore, in the above process, if the locking mechanism 500 and the locking and unlocking mechanisms of the first and second traction plate mechanisms 240 and 340 are not provided, then when the first dielectric body 200 or the second dielectric body 300 is raised to a certain height, the gravity of the first mass 220 or the second mass 320 will prevent the piston head in the other dielectric body from descending, thus halting further rotation of the first lever 100 to convert and output energy. However, by providing the locking mechanism 500, one of the first mass 220 or the second mass 320 can be fixed at the second predetermined height, eliminating the influence of its gravity. This allows the other of the first mass 220 or the second mass 320 at the first predetermined height to freely fall, allowing the first lever 100 to further move downward, thereby outputting the gravitational potential energy of its free fall. The piston head in the dielectric body descends, and the medium in the cylinder is discharged.

[0116] In addition, in order to ensure that the first left slider 241 and the first right slider 242 move in the first unlocking channel 224 in the vertical direction, and the second left slider 341 and the second right slider 342 move in the second unlocking channel 324 in the vertical direction, sliding grooves extending in the vertical direction can be respectively provided on the inner wall of the first unlocking channel 224 and the inner wall of the second unlocking channel 324, and a protrusion is respectively provided on one side of the first left slider 241 and the one side of the first right slider 242, which is located in the sliding groove of the first unlocking channel 224; a protrusion is respectively provided on one side of the second left slider 341 and the one side of the second right slider 342, which is located in the sliding groove of the second unlocking channel 324, thereby ensuring that the first left slider 241 and the first right slider 242 as well as the second left slider 341 and the second right slider 342 can move in the vertical direction.

[0117] Therefore, it can be understood that the first lever 100, the first medium body 200, and the second medium body 300 form a balance mechanism, wherein the balance mechanism has three weights, wherein the first weight is the medium in the first cylinder 211 or the second cylinder 311, and the medium is discharged from one of the first cylinder 211 and the second cylinder 311 into the medium energy storage mechanism, and injected from the medium energy storage mechanism into the other of the first cylinder 211 and the second cylinder 311, which can change the weight of the first lever 100 close to the first cylinder 211 or the side close to the second cylinder 311; the second weight is the liquid in the first box 110 or the second box 120, and the liquid flows When the weight of the first lever 100 is inserted into the first box 110 or the second box 120, the weight on the side of the first lever 100 close to the first cylinder 211 or the side close to the second cylinder 311 can be changed; the third weight is the first mass block 220 and the second mass block 320, wherein, when one of the first mass block 220 or the second mass block 320 is locked to the second preset height position, the downward gravity of the first lever 100 on that side is removed, which is equivalent to the weight on that side being cancelled, and the mass block on the other side corresponding to the first lever 100 can fall freely (its weight does not increase), thereby giving full play to the gravitational potential energy of this side, so that the first lever 100 can output its gravitational potential energy.

[0118] The present invention maintains the balance mechanism in an unbalanced state at all times by changing the position of the weights, thereby outputting the gravitational potential energy of the unlocked mass block through the first lever 100 .

[0119] The locking mechanism 500 described above is configured as an electrically controlled locking mechanism.

[0120] The locking mechanism 500 is constructed as an electrically controlled locking mechanism. When it is aligned with the first locking channel 225 or the second locking channel 325, the electrically controlled locking mechanism controls its lock tongue to extend and insert into the first locking channel 225 or the second locking channel 325, and then it is locked with the first mass block 220 or the second mass block 320; and pushes the first left slider 241 and the first right slider 242 out of the first locking channel 225 and into the first unlocking channel 224, or pushes the second left slider 341 and the second right slider 342 out of the second locking channel 325 and into the second unlocking channel 324; conversely, when unlocking is required, the electrically controlled locking mechanism controls its lock tongue to retract from the first locking channel 225 or the second locking channel 325, thereby unlocking it from the first mass block 220 or the second mass block 320.

[0121] It can be understood that the first mass block 220 or the second mass block 320 is locked with the locking mechanism 500 only when it is at the second height position, and is unlocked with the locking mechanism 500 before the first mass block 220 or the second mass block 320 leaves the second height position.

[0122] The locking mechanism 500 may also be configured as other structures capable of locking the first mass block 220 and the second mass block 320 at predetermined height positions, respectively.

[0123] In addition, in order to enable the first left slider 241 and the first right slider 242 to descend in the first unlocking channel 224 and smoothly enter the first locking channel 225, an electrically controlled valve can be provided, which can be located in the first mass block 220, or located on the outside of the first mass block 220. When the first cylinder 211 is in contact with the ground and the medium in the first cylinder 211 has been emptied, the electrically controlled valve can push (pull) the first left slider 241 and the first right slider 242 from the first unlocking channel 224 into the first locking channel 225, so that the first left slider 241 and the first right slider 242 are locked with the first mass block 220.

[0124] Correspondingly, an electric-controlled valve is also provided in the second mass block 320 or on the outside of the second mass block 320. When the second cylinder 311 is in contact with the ground and the medium in the second cylinder 311 has been emptied, the electric-controlled valve can push (pull) the second left slider 341 and the second right slider 342 from the second unlocking channel 324 into the second locking channel 325, so that the second left slider 341 and the second right slider 342 are locked with the second mass block 320.

[0125] like Figure 2a and Figure 3a As shown, in one embodiment, a roller may be provided at the front end of the locking tongue of the locking mechanism 500 so that the locking tongue of the locking mechanism 500 can smoothly enter or exit the first locking channel 225 (or the second locking channel 325).

[0126] like Figure 2b and Figure 3b As shown, in another embodiment, the first locking channel 225 is provided with a plurality of first rollers 2251, which can be respectively disposed on two upper and lower opposing inner walls of the first locking channel 225; and the second locking channel 325 is provided with a plurality of second rollers 3251, which can be respectively disposed on two upper and lower opposing inner walls of the second locking channel 325. When the locking tongue of the locking mechanism 500 is inserted into the first locking channel 225 or the second locking channel 325, the first rollers 2251 or the second rollers 3251 thereon can reduce the frictional resistance of the locking tongue during entry and exit, allowing the locking tongue to smoothly enter or exit the first locking channel 225 (or the second locking channel 325).

[0127] The plurality of first rollers 2251 on the upper inner wall of the first locking channel 225 can be arranged in multiple rows or columns, and the plurality of first rollers 2251 on the lower inner wall of the first locking channel 225 can be arranged in multiple rows or columns. The plurality of second rollers 3251 in the second locking channel 325 can be arranged in the same manner as the first rollers 2251.

[0128] The rollers can also be replaced by balls.

[0129] Furthermore, in order to enable the above-mentioned first dielectric body 200 and the second dielectric body 300 to rise or fall along a straight line during the rising or falling process, the mechanical energy storage device of the present invention also includes a moving guide mechanism, which is connected to the first dielectric body 200 and the second dielectric body 300 respectively. The moving guide mechanism is constructed as a slide rail mechanism or a slide groove mechanism, which can enable the first dielectric body 200 and the second dielectric body 300 to move upward or downward along a straight line.

[0130] For example, if the moving guide mechanism is constructed as a slide rail mechanism, a first slider may be provided on the side walls of the first mass block 220 and the first cylinder body 211, and an I-shaped groove is provided on the first slider, which cooperates with the slide rail in the slide rail mechanism; similarly, a second slider is provided on the side walls of the second mass block 320 and the second cylinder body 311, and an I-shaped groove is provided on the second slider, which cooperates with the slide rail in the slide rail mechanism, thereby allowing the first dielectric body 200 and the second dielectric body 300 to move upward or downward in a straight line.

[0131] For example, the moving guide mechanism is constructed as a slide mechanism, and a first slider can be set on the side wall of the first mass block 220 and the first cylinder body 211. The first slider is located in the slide groove of the slide groove mechanism and is slidably connected to the slide groove. Similarly, a second slider is set on the side wall of the second mass block 320 and the second cylinder body 311. The second slider is located in the slide groove of the slide groove mechanism and is slidably connected to the slide groove, so that the first medium body 200 and the second medium body 300 move upward or downward in a straight line.

[0132] In addition, the position in which the movable guide mechanism is set is such that it does not interfere with the rotation of the end of the first lever 100 close to the first dielectric body 200 to the lowest point position or the rotation of the end of the first lever 100 close to the second dielectric body 300 to the lowest point position. For example, the movable guide mechanism can be located at the front and rear sides of the first dielectric body 200 and the second dielectric body 300, respectively.

[0133] In the above Figure 12In the illustrated embodiment, when the second port 6312 is open and the third port 6313 is closed, that is, the first port 6311 and the second port 6312 of the three-way valve 631 are connected, the medium can be input into the first cylinder 211 of the first medium body 200 through the first input pipe 221; conversely, when the second port 6312 is closed and the third port 6313 is open, that is, the first port 6311 and the third port 6313 of the three-way valve 631 are connected, the medium can be input into the second cylinder 311 of the second medium body 300 through the second input pipe 321.

[0134] Therefore, when the second port 6312 is open and the third port 6313 is closed, the medium in the medium storage tank 630 flows into the first cylinder 211 through the second port 6312, and the closing time of the second port 6312 can be controlled so that the first cylinder 211 is filled. At this time, the first mass block 220 and the first cylinder 211 are lowered to the state where the first cylinder 211 contacts the ground, as described above. Figure 10 shown.

[0135] Then, both the second port 6312 and the third port 6313 are closed. The first mass block 220 moves downward and pushes the first connecting rod 213, which in turn pushes the first piston head 212 downward in the first cylinder 211. When the first piston head 212 descends in the first cylinder 211, the medium in the first cylinder 211 is discharged outward through the first output pipe 222 and enters the medium storage tank 630 through the input port of the medium storage tank 630. That is, the three-way valve 631 is closed when the medium is discharged. Alternatively, it is conceivable that, to prevent the first one-way valve 214 from malfunctioning later, the three-way valve 631 is temporarily not closed when the first cylinder 211 discharges the medium, and is closed after the first cylinder 211 has completed discharging the medium.

[0136] On the contrary, when the second port 6312 is closed and the third port 6313 is opened, the medium in the medium storage tank 630 flows into the second cylinder 311 through the third port 6313, and the closing time of the third port 6313 can be controlled so that the second cylinder 311 is filled. At this time, the second mass block 320 and the second cylinder 311 are lowered to the state where the second cylinder 311 contacts the ground, as shown in FIG. Figure 10 shown.

[0137] Next, the second port 6312 and the third port 6313 are closed simultaneously. The second mass block 320 moves downward and pushes the second connecting rod 313, which in turn pushes the second piston head 312 downward in the second cylinder 311. As the second piston head 312 descends in the second cylinder 311, the medium in the second cylinder 311 is discharged outward through the second output pipe 322 and enters the medium storage tank 630 through the input port of the medium storage tank 630. That is, the three-way valve 631 is closed when the medium is discharged. Alternatively, it is conceivable that, to prevent the failure of the second one-way valve 314 described above, the three-way valve 631 is temporarily not closed when the second cylinder 311 discharges the medium, and is then closed after the second cylinder 311 has completed discharging the medium.

[0138] The above process can be repeated so that the dielectric energy storage box 630 can be linked with the first dielectric body 200 and the second dielectric body 300 respectively.

[0139] In addition, in order to facilitate the return of the medium, such as Figure 12 As shown, a first one-way valve 214 is provided in the first input pipe 221 to ensure that the medium can only flow in the direction from the output port 611 of the first medium storage tank to the first cylinder 211, and cannot flow in the opposite direction. Therefore, it can be understood that when the first piston head 212 moves downward, the medium in the first cylinder 211 can be discharged through the first output pipe 222. Similarly, a second one-way valve 314 is provided in the second input pipe 321 to ensure that the medium can only flow in the direction from the output port 621 of the second medium storage tank to the second cylinder 311, and cannot flow in the opposite direction. Therefore, it can be understood that when the second piston head 312 moves downward, the medium in the second cylinder 311 can be discharged through the second output pipe 322.

[0140] In order to ensure that the first one-way valve 214 and the second one-way valve 314 can open normally, when the medium in the medium storage tank 630 fills the first cylinder 211 or the second cylinder 311, a portion of medium still remains in the medium storage tank 630 to ensure the pressure in the pipeline, so that the first one-way valve 214 and the second one-way valve 314 can open normally, ensuring that the first cylinder 211 or the second cylinder 311 can be completely filled.

[0141] Furthermore, the media storage tank 630 is equipped with an exhaust pipe and an exhaust valve, allowing pressure generated during media circulation to be promptly discharged through the exhaust pipe and the exhaust valve. For example, a gas bag can be connected to the exhaust pipe. When the pressure generated by the circulating media increases, the gas bag can be expanded accordingly; when the pressure decreases, the gas bag can be contracted accordingly, thereby adjusting the pressure balance in the media storage tank 630. This arrangement can isolate the media storage tank 630 from the external environment.

[0142] In the above Figure 13In the embodiment shown, the capacity of the first medium storage tank 610 is greater than the capacity of the first cylinder 211. Therefore, the medium in the first medium storage tank 610 can ensure that the first one-way valve 214 is always open until the first cylinder 211 is filled. At this time, the first mass block 220 and the first cylinder 211 are lowered to the state where the first cylinder 211 contacts the ground, as described above. Figure 10 shown.

[0143] Next, the first mass block 220 moves downward and pushes the first connecting rod 213, thereby pushing the first piston head 212 to descend in the first cylinder 211. When the first piston head 212 descends in the first cylinder 211, the medium in the first cylinder 211 is discharged outward through the first output pipe 222 and enters the second medium energy storage tank 620 through the input port 622 of the second medium energy storage tank.

[0144] The capacity of the second medium storage tank 620 is equal to that of the first medium storage tank 610 and is greater than the capacity of the second cylinder 311. Therefore, the medium in the second medium storage tank 620 can ensure that the second one-way valve 314 remains open until the second cylinder 311 is filled. This corresponds to the state where the first piston head 212 is in contact with the bottom of the first cylinder 211.

[0145] At this time, since the medium in the first medium storage tank 610 has been partially discharged, when the first cylinder 211 discharges the medium into the second medium storage tank 620 and fills it, the second lever 600 rotates clockwise around the second fulcrum 601. Accordingly, the second medium storage tank 620 rotates along with the second lever 600 and tilts. The output port 621 of the second medium storage tank is downward. Therefore, the medium in the second medium storage tank 620 can pass through the output port 621 of the second medium storage tank and be input into the second cylinder 311 via the second input pipe 321 in the second medium body 300.

[0146] When the medium in the second medium energy storage tank 620 fills the second cylinder 311, the second mass block 320 and the second cylinder 311 descend to the state where the second cylinder 311 contacts the ground, as shown in FIG. Figure 7 shown.

[0147] Next, the second mass block 320 moves downward and pushes the second connecting rod 313, which in turn pushes the second piston head 312 to descend in the second cylinder 311. When the second piston head 312 descends in the second cylinder 311, the medium in the second cylinder 311 is discharged outward through the second output pipe 322 and enters the first medium energy storage tank 610 through the input port 612 of the first medium energy storage tank.

[0148] When the medium in the second cylinder 311 is discharged into the first medium storage tank 610 , the second piston head 312 is in contact with the bottom of the second cylinder 311 .

[0149] Thus, the above-mentioned process of alternatingly tilting the first dielectric energy storage box 610 and the second dielectric energy storage box 620 can be repeated, so that they can be linked with the first dielectric body 200 and the second dielectric body 300 respectively.

[0150] like Figure 11 As shown, a first one-way valve 214 is provided in the first input pipe 221 to ensure that the medium can only flow in the direction from the output port 611 of the first medium storage tank to the first cylinder 211, and cannot flow in the opposite direction. Therefore, it can be understood that when the first piston head 212 moves downward, the medium in the first cylinder 211 can be discharged through the first output pipe 222. Similarly, a second one-way valve 314 is provided in the second input pipe 321 to ensure that the medium can only flow in the direction from the output port 621 of the second medium storage tank to the second cylinder 311, and cannot flow in the opposite direction. Therefore, it can be understood that when the second piston head 312 moves downward, the medium in the second cylinder 311 can be discharged through the second output pipe 322.

[0151] The second lever 600 is located above the first lever 100. Therefore, when the first mass block 220 or the second mass block 320 drops from the first preset height in free fall, the medium in the first cylinder 211 or the second cylinder 311 is discharged into the second medium energy storage tank 620 or the first medium energy storage tank 610, that is, the medium is discharged from a low place to a high place, thereby achieving energy storage.

[0152] The first input tube 221 , the first output tube 222 , the second input tube 321 and the second output tube 322 above the first lever 100 are all retractable or rotatable hoses for easy connection, and the lengths of the tubes are the same in the extended state.

[0153] It should be noted that the first medium energy storage box 610, the second medium energy storage box 620 and the medium energy storage box 630 are all provided with a medium injection port. When the medium is consumed to a point where it is insufficient to maintain the unbalanced state of the first lever 100 due to factors such as loss, an appropriate amount of medium can be added thereto through the medium injection port.

[0154] Similarly, the first box body 110 and the second box body 120 are also provided with a liquid injection port. When the liquid therein is consumed due to factors such as loss, liquid can be added to the first box body 110 or the second box body 120 through the liquid injection port.

[0155] The mechanical energy storage device of the present invention can be used alone, or there can be multiple mechanical energy storage devices of the present invention, and multiple mechanical energy storage devices can be used in combination to serve as an energy conversion source for large-scale mechanical equipment.

[0156] While the present invention has been described with reference to preferred embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided no structural conflicts exist. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A mechanical energy storage device, characterized in that: include: a first lever having a first fulcrum, wherein the first lever is rotatable about the first fulcrum; a dielectric body comprising a first dielectric body and a second dielectric body respectively disposed on both sides of the first fulcrum, wherein the first dielectric body and the second dielectric body are respectively connected to the lower side of the first lever; as well as a dielectric energy storage mechanism, located above the first lever and connected to the first dielectric body and the second dielectric body; After the medium energy storage mechanism completes injecting the medium into the first medium body, the first lever rotates in a first direction, causing the height of the first medium body to decrease to a first preset height and the height of the second medium body to increase to a second preset height; when the first medium body continues to descend from the first preset height, the first lever outputs energy at an end close to the first medium body, and the first medium body discharges the medium into the medium energy storage mechanism; After the medium energy storage mechanism completes injecting the medium into the second medium body, the first lever rotates about a second direction opposite to the first direction, so that the height of the first medium body rises to a second preset height and the height of the second medium body decreases to the first preset height. When the second medium body continues to descend from the first preset height, the first lever outputs energy at one end close to the second medium body, and the second medium body discharges the medium into the medium energy storage mechanism.

2. The mechanical energy storage device according to claim 1, characterized in that The first dielectric body includes a first mass block, and the second dielectric body includes a second mass block. The first mass block and the second mass block are symmetrical about the first fulcrum, and are connected to the first lever respectively. When the height of the first dielectric body is lowered to a first preset height and the height of the second dielectric body is raised to a second preset height, the second mass block is locked to the second preset height position, so that the first mass block can be lowered from the first preset height; When the height of the first dielectric body rises to the second preset height and the height of the second dielectric body falls to the first preset height, the first mass block is locked to the second preset height position, so that the second mass block can fall from the first preset height.

3. The mechanical energy storage device according to claim 2, characterized in that: The first medium body includes a first hydraulic cylinder mechanism connected to the first mass block, and the second medium body includes a second hydraulic cylinder mechanism connected to the second mass block. After the medium is injected into the first hydraulic cylinder mechanism, the first lever rotates in a first direction, so that the height of the first medium body is reduced to a first preset height and the height of the second medium body is increased to a second preset height; when the first medium body continues to descend from the first preset height, the first lever outputs energy at one end close to the first medium body, and the first hydraulic cylinder mechanism discharges the medium into the medium energy storage mechanism; After the medium is injected into the second hydraulic cylinder mechanism, the first lever rotates in the second direction, so that the height of the second medium body is reduced to the first preset height and the height of the first medium body is increased to the second preset height; when the second medium body continues to descend from the first preset height, the first lever outputs energy at one end close to the second medium body, and the second hydraulic cylinder mechanism discharges the medium to the medium energy storage mechanism.

4. The mechanical energy storage device according to claim 3, characterized in that: A first box body and a second box body are respectively provided at both ends of the upper side of the first lever, and a guide pipe and an exhaust pipe are respectively connected between the first box body and the second box body; When the first lever rotates in a first direction, the liquid in the second box flows into the first box through the guide tube; when the first lever rotates in a second direction, the liquid in the first box flows into the second box through the guide tube.

5. The mechanical energy storage device according to claim 4, characterized in that: The first hydraulic cylinder mechanism and the second hydraulic cylinder mechanism both include: A cylinder, which can discharge the medium outward or inject the medium into it; a piston head, the piston head being disposed in the cylinder body and being capable of moving up and down in the cylinder body; and a connecting rod, connected to the piston head and the first mass block or the second mass block respectively; The first box and the second box have the same weight, and the capacity of the first box and the second box is smaller than the capacity of the cylinder.

6. The mechanical energy storage device according to any one of claims 2 to 4, characterized in that: It also includes a locking mechanism, which is an electrically controlled locking mechanism. The locking mechanism is configured to lock the second mass block to a second preset height position when the height of the first dielectric body is lowered to a first preset height and the height of the second dielectric body is raised to a second preset height; and when the height of the first dielectric body is raised to the second preset height and the height of the second dielectric body is lowered to the first preset height, the first mass block is locked to the second preset height position.

7. The mechanical energy storage device according to any one of claims 1 to 4, characterized in that: The medium energy storage mechanism includes a medium energy storage box, a three-way valve is provided at the lower end of the medium energy storage box, a first port, a second port and a third port of the three-way valve are respectively connected to the output port of the medium energy storage box, the input pipe in the first medium body and the input pipe in the second medium body, and the output pipe in the first medium body and the output pipe in the second medium body are respectively connected to the input port of the medium energy storage box; The second port and the third port are not opened at the same time.

8. The mechanical energy storage device according to any one of claims 1 to 4, characterized in that: The dielectric energy storage mechanism comprises: a second lever having a second fulcrum, the second lever being rotatable about the second fulcrum, the second lever being perpendicular to the first lever; a first dielectric energy storage tank disposed on the second lever; and a second medium energy storage tank, which is arranged on the second lever, wherein the first medium energy storage tank and the second medium energy storage tank are symmetrically arranged about the center of the second fulcrum; The output port of the first medium energy storage box is connected to the input pipe in the first medium body, and the input port of the first medium energy storage box is connected to the output pipe in the second medium body; The output port of the second medium energy storage box is communicated with the input pipe in the second medium body, and the input port of the second medium energy storage box is communicated with the output pipe in the first medium body.

9. The mechanical energy storage device according to claim 8, characterized in that: The distance between the output port of the first medium energy storage box and the second support point is greater than the distance between the second support point and an end of the first medium energy storage box opposite to the output port of the first medium energy storage box; The distance between the output port of the second medium energy storage box and the second support point is greater than the distance between the second support point and an end of the second medium energy storage box opposite to the output port of the second medium energy storage box.

10. The mechanical energy storage device according to any one of claims 1 to 4, characterized in that: It also includes a moving guide mechanism, which is connected to the first medium body and the second medium body respectively. The moving guide mechanism is constructed as a slide rail mechanism or a slide groove mechanism, which can enable the first medium body and the second medium body to move upward or downward in a straight line.

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