A liquid-powered intelligent lifting device and operation method thereof

Abstract

The present application relates to the technical field of intelligent lifting equipment, and discloses a liquid-powered intelligent lifting device and its operation method. The liquid-powered intelligent lifting device includes a fixed liquid tank, a first movable liquid tank, a second movable liquid tank or a third movable liquid tank, a first car, a first pressure pump, a linkage mechanism, a generator, a battery, a transmission device, a plurality of solenoid valves, and a control mechanism. The liquid circulation is used to make the first car move up and down under the gravity of the liquid, and the electricity is generated during the operation and stored in the battery. The battery supplies power to the electrical control components to control the solenoid valves and the like to realize the reciprocating flow of the liquid, so that the lifting function can be realized without electric drive, and the lifting needs of specific occasions can be met, and even external power can be supplied.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent lifting equipment, and in particular to a liquid-powered intelligent lifting device and an operating method thereof. Background Art

[0002] At present, large lifting devices are all powered by electricity, including the commonly used "elevators". Elevators are simple in structure and easy to operate, so they are widely used. However, in some cases of power shortage or unstable power, elevators cannot operate, but the lifting function is indispensable.

[0003] Therefore, there is an urgent need to develop a lifting device that does not require electrical drive to replace the elevator to meet the needs of certain specific occasions. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a liquid-powered intelligent lifting device and an operating method thereof, which can realize the lifting function without electric drive.

[0005] The technical solution provided by the present invention is as follows:

[0006] A liquid-powered intelligent lifting device, comprising a fixed liquid tank, a first movable liquid tank, a second movable liquid tank, a first car, a first pressure pump, a linkage mechanism, a generator, a battery, a transmission device, a plurality of solenoid valves, a control mechanism, a second car, and a second pressure pump;

[0007] The linkage mechanism connects the first movable liquid tank and the second movable liquid tank, so that when the first movable liquid tank descends, the second movable liquid tank is driven to rise, and when the second movable liquid tank descends, the first movable liquid tank is driven to rise; the first movable liquid tank is provided with a liquid inlet and a liquid outlet, the first movable liquid tank is connected to the first car, and when the first movable liquid tank moves, the first car is driven to move synchronously; the second movable liquid tank is provided with a liquid inlet and a liquid outlet, the second movable liquid tank is connected to the second car, and when the second movable liquid tank moves, the second car is driven to move synchronously; the fixed liquid tank is located at the top of the device, and the fixed liquid tank is also provided with a liquid inlet and a liquid outlet, and its outlet The liquid port is connected to the liquid inlet of the first movable liquid tank and the liquid inlet of the second movable liquid tank, and a solenoid valve is arranged in the flow channel to control the liquid in the fixed liquid tank to flow to the first movable liquid tank and the second movable liquid tank; by controlling whether the liquid in the fixed liquid tank flows to the first movable liquid tank and the second movable liquid tank, the weight of the first movable liquid tank and the weight of the second movable liquid tank are adjusted, when the first movable liquid tank is heavier than the second movable liquid tank, the first movable liquid tank descends, driving the second movable liquid tank to rise; when the second movable liquid tank is heavier than the first movable liquid tank, the second movable liquid tank descends, driving the first movable liquid tank to rise;

[0008] The first pressure pump is located at the bottom of the device, and includes a first liquid cylinder, a first cylinder piston and a first combined piston. The first combined piston includes a first cylinder and a first hydraulic piston that are fixed to each other. The first cylinder and the first hydraulic piston cooperate with the first cylinder piston and the first liquid cylinder respectively. The upper end of the first liquid cylinder is provided with a liquid inlet corresponding to the liquid outlet of the first movable liquid tank, and the lower end is provided with a liquid outlet that is connected to the liquid inlet of the fixed liquid tank. After the first movable liquid tank descends and abuts the first liquid cylinder, the liquid in the first movable liquid tank flows into the first liquid cylinder and is located above the first hydraulic piston. After the first movable liquid tank rises and leaves the first liquid cylinder, the first cylinder drives the first hydraulic piston to rise, and the liquid in the first movable liquid tank flows to the bottom of the first hydraulic piston. After the first movable liquid tank descends again and abuts the first liquid cylinder, the first hydraulic piston presses the liquid under the first hydraulic piston back to the fixed liquid tank.

[0009] The second pressure pump is located at the bottom of the device, and includes a second liquid cylinder, a second cylinder piston and a second combined piston. The second combined piston includes a second cylinder and a second hydraulic piston that are fixed to each other. The second cylinder and the second hydraulic piston cooperate with the second cylinder piston and the second liquid cylinder respectively. The upper end of the second liquid cylinder is provided with a liquid inlet corresponding to the liquid outlet of the second active liquid tank, and the lower end is provided with a liquid outlet that is connected to the liquid inlet of the fixed liquid tank. After the second active liquid tank descends and abuts the second liquid cylinder, the liquid in the second active liquid tank flows into the second liquid cylinder and is located above the second hydraulic piston. After the second active liquid tank rises and leaves the second liquid cylinder, the second cylinder drives the second hydraulic piston to rise, and the liquid in the second active liquid tank flows to the bottom of the second hydraulic piston. After the second active liquid tank descends again and abuts the second liquid cylinder, the second hydraulic piston presses the liquid under the second hydraulic piston back into the fixed liquid tank.

[0010] The linkage mechanism, transmission device, generator, and battery are connected in sequence. When the linkage mechanism moves, the transmission device is connected to drive the generator to generate electricity, and the electricity generated by the generator is stored in the battery.

[0011] The solenoid valve and the control mechanism are connected to a battery so as to supply power through the battery; the solenoid valve is connected to the control mechanism so as to control the opening and closing of the solenoid valve through the control mechanism.

[0012] Preferably, the linkage mechanism includes a gear set, multiple winch shafts, multiple pulleys, and multiple lifting ropes. The first movable liquid tank and the second movable liquid tank are respectively connected to the corresponding winch shafts by lifting ropes passing around the pulleys. The winch shafts are connected through a gear set to achieve linkage. When the first movable liquid tank rises / descends, the second movable liquid tank descends / ascends; one of the gears in the gear set is connected to a rotating shaft, and the rotating shaft is connected to a transmission device to drive the transmission device to move when the gear set is running.

[0013] Preferably, an electromagnetic brake is installed on the rotating shaft, and the electromagnetic brake is powered by a battery. The electromagnetic brake is used to temporarily stop the first car when it reaches the required floor by manually controlling the electromagnetic brake. The electromagnetic brake is connected to a relay switch, and the relay switch is wirelessly connected to a control mechanism. The control mechanism is connected to an operation panel, and the operation panel is manually operated to send instructions to the control mechanism. The control mechanism transmits signals to the relay switch wirelessly, and the electromagnetic brake is controlled by the relay switch to achieve temporary stopping of the first car.

[0014] Preferably, the first hydraulic piston includes an upper part, a lower part, and a sealing ring, the upper part is fixed to the first cylinder, and includes a plurality of first through holes, the lower part is provided with a second through hole corresponding to each first through hole, the bottom end of the first through hole is staggered with the top end of the corresponding second through hole, the sealing ring is located on the upper surface of the lower part, it covers the bottom end of the first through hole but does not cover the top end of the second through hole, and a limiting mechanism for limiting the separation distance between the upper part and the lower part is provided between the upper part and the lower part, so that when the first cylinder moves downward, the upper part abuts against the sealing ring, the first through hole is not connected with the second through hole, and the liquid above the first hydraulic piston cannot enter the first hydraulic piston; when the first cylinder moves upward, the upper part is separated from the sealing ring, the first through hole is connected with the second through hole, and the liquid above the first hydraulic piston can enter the first hydraulic piston through the first through hole, the gap between the upper part and the lower part, and the second through hole; the structure of the second hydraulic piston is the same as that of the first hydraulic piston.

[0015] A method for operating the liquid-powered intelligent lifting device as described above comprises:

[0016] Step S11, opening the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the first movable liquid tank;

[0017] Step S12, when the first movable liquid tank moves to the bottom, the second movable liquid tank is located at the top, the first movable liquid tank presses against the first liquid cylinder, the liquid in the first movable liquid tank flows into the first liquid cylinder, and presses against the first cylinder to descend along the first cylinder piston, squeezing the gas in the first cylinder;

[0018] Step S13, open the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the second movable liquid tank, so that the second movable liquid tank increases in weight and becomes heavier than the first movable liquid tank. The second movable liquid tank descends, and the first movable liquid tank ascends, driving the first car to synchronously ascend to the top. If it needs to stop at a certain floor, it is temporarily stopped by manual control. During the ascending process of the first movable liquid tank, the first cylinder resets and ascends, driving the first hydraulic piston to ascend, and the liquid in the first liquid cylinder flows from the upper part of the first hydraulic piston to the lower part of the first hydraulic piston.

[0019] Step S14, when the second movable liquid tank reaches the bottom, the second movable liquid tank presses against the second liquid cylinder, and the liquid in the second movable liquid tank flows into the second liquid cylinder, and presses against the second cylinder to descend along the second cylinder piston, squeezing the gas in the second cylinder;

[0020] Step S15, open the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the first movable liquid tank, so that the first movable liquid tank increases in weight and becomes heavier than the second movable liquid tank. The first movable liquid tank descends, and the second movable liquid tank ascends, driving the second liquid tank to synchronously ascend to the top. If it needs to stop at a certain floor, it is temporarily stopped by manual control. During the ascending process of the second movable liquid tank, the second cylinder resets and ascends, driving the second hydraulic piston to ascend, and the liquid in the second liquid cylinder flows from the upper part of the second hydraulic piston to the lower part of the second hydraulic piston.

[0021] Step S16, when the first movable liquid tank moves to the bottom, the first movable liquid tank presses against the first liquid cylinder, and the liquid in the first movable liquid tank flows into the first liquid cylinder, and presses against the first cylinder to descend along the first cylinder piston, squeezing the gas in the first cylinder, and the first hydraulic piston presses the liquid below the first hydraulic piston back into the fixed liquid tank;

[0022] Step S17, open the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the second movable liquid tank, so that the second movable liquid tank increases in weight and becomes heavier than the first movable liquid tank. The second movable liquid tank descends, and the first movable liquid tank ascends to drive the first car to ascend synchronously to the top. If it needs to stop at a certain floor, it is temporarily stopped by manual control. During the ascending process of the first movable liquid tank, the first cylinder resets and ascends, driving the first hydraulic piston to ascend, and the liquid in the first liquid cylinder flows from the upper part of the first hydraulic piston to the lower part of the first hydraulic piston.

[0023] Step S18, when the second movable liquid tank reaches the bottom, the second movable liquid tank presses against the second liquid cylinder, and the liquid in the second movable liquid tank flows into the second liquid cylinder, and presses against the second cylinder to descend along the second cylinder piston, squeezing the gas in the second cylinder, and the second hydraulic piston presses the liquid under the second hydraulic piston back into the fixed liquid tank; return to step S15;

[0024] Steps S15 to S18 are cyclically executed to enable the liquid-powered intelligent lifting device to operate continuously.

[0025] A liquid-powered intelligent lifting device, comprising a fixed liquid tank, a first movable liquid tank, a third movable liquid tank, a first car, a third pressure pump, a linkage mechanism, a generator, a battery, a transmission device, a plurality of solenoid valves, a control mechanism, and a transfer cylinder;

[0026] The linkage mechanism connects the first movable liquid box and the third movable liquid box, so that when the first movable liquid box descends, the third movable liquid box is driven to rise, and when the third movable liquid box descends, the first movable liquid box is driven to rise; the first movable liquid box is provided with a liquid inlet and a liquid outlet, and the first movable liquid box is connected to the first car, and when the first movable liquid box moves, it drives the first car to move synchronously; the third movable liquid box is provided with a liquid inlet and a liquid outlet; the fixed liquid box is located at the top of the device, and the fixed liquid box is also provided with a liquid inlet and a liquid outlet, and its liquid outlet connects the first movable liquid box and the third movable liquid box The liquid inlet of the fixed liquid tank is provided, and a solenoid valve is provided in the flow channel to control the liquid in the fixed liquid tank to flow to the first movable liquid tank and the third movable liquid tank; by controlling whether the liquid in the fixed liquid tank flows to the first movable liquid tank and the third movable liquid tank, the weight of the first movable liquid tank and the weight of the third movable liquid tank are adjusted, when the first movable liquid tank is heavier than the third movable liquid tank, the first movable liquid tank descends, driving the third movable liquid tank to rise; when the third movable liquid tank is heavier than the first movable liquid tank, the third movable liquid tank descends, driving the first movable liquid tank to rise;

[0027] The third pressure pump is located at the bottom of the device, and includes a third liquid cylinder, a third cylinder piston and a third combined piston. The third combined piston includes a third cylinder and a third hydraulic piston that are fixed to each other. The third cylinder and the third hydraulic piston cooperate with the third cylinder piston and the third liquid cylinder respectively. The upper end of the third liquid cylinder is provided with a liquid inlet corresponding to the liquid outlet of the third active liquid tank, and the lower end is provided with a liquid outlet that is connected to the liquid inlet of the fixed liquid tank. After the third active liquid tank descends and abuts the third liquid cylinder, the liquid in the third active liquid tank flows into the third liquid cylinder and is located above the third hydraulic piston. After the third active liquid tank rises and leaves the third liquid cylinder, the third cylinder drives the third hydraulic piston to rise, and the liquid in the third active liquid tank flows to the bottom of the third hydraulic piston. After the third active liquid tank descends again and abuts the third liquid cylinder, the third hydraulic piston presses the liquid under the third hydraulic piston back into the fixed liquid tank.

[0028] The transfer cylinder is located below the third movable liquid tank. The upper end of the transfer cylinder is provided with a liquid inlet corresponding to the liquid outlet of the third movable liquid tank, and the lower end is provided with a liquid outlet connected to the third liquid cylinder. After the third movable liquid tank descends to abut against the transfer cylinder, the liquid in the third movable liquid tank flows into the third liquid cylinder through the transfer cylinder; after the first movable liquid tank descends to abut against the third liquid cylinder, the third hydraulic piston presses this part of the liquid back into the fixed liquid tank.

[0029] The linkage mechanism, transmission device, generator, and battery are connected in sequence. When the linkage mechanism moves, the transmission device is connected to drive the generator to generate electricity, and the electricity generated by the generator is stored in the battery.

[0030] The solenoid valve and the control mechanism are connected to a battery so as to supply power through the battery; the solenoid valve is connected to the control mechanism so as to control the opening and closing of the solenoid valve through the control mechanism.

[0031] Preferably, the linkage mechanism includes a gear set, multiple winch shafts, multiple pulleys, and multiple lifting ropes. The first movable liquid tank and the third movable liquid tank are respectively connected to the corresponding winch shafts by lifting ropes passing around pulleys. The winch shafts are connected through a gear set to achieve linkage. When the first movable liquid tank rises / descends, the third movable liquid tank descends / ascends; one of the gears in the gear set is connected to a rotating shaft, and the rotating shaft is connected to a transmission device to drive the transmission device to move when the gear set is running.

[0032] Preferably, an electromagnetic brake is installed on the rotating shaft, and the electromagnetic brake is powered by a battery. The electromagnetic brake is used to temporarily stop the first car when it reaches the required floor by manually controlling the electromagnetic brake. The electromagnetic brake is connected to a relay switch, and the relay switch is wirelessly connected to a control mechanism. The control mechanism is connected to an operation panel, and the operation panel is manually operated to send instructions to the control mechanism. The control mechanism transmits signals to the relay switch wirelessly, and the electromagnetic brake is controlled by the relay switch to achieve temporary stopping of the first car.

[0033] Preferably, the third hydraulic piston includes an upper part, a lower part, and a sealing ring. The upper part is fixed to the third cylinder and includes a plurality of first through holes. The lower part is provided with a second through hole corresponding to each first through hole. The bottom end of the first through hole is staggered with the top end of the corresponding second through hole. The sealing ring is located on the upper surface of the lower part, which covers the bottom end of the first through hole but does not cover the top end of the second through hole. A limiting mechanism for limiting the separation distance between the upper part and the lower part is provided between the upper part and the lower part, so that when the third cylinder moves downward, the upper part abuts against the sealing ring, the first through hole is not connected with the second through hole, and the liquid above the third hydraulic piston cannot enter the third hydraulic piston; when the third cylinder moves upward, the upper part is separated from the sealing ring, the first through hole is connected with the second through hole, and the liquid above the third hydraulic piston can enter the third hydraulic piston through the first through hole, the gap between the upper part and the lower part, and the second through hole.

[0034] A method for operating the liquid-powered intelligent lifting device as described above comprises:

[0035] Step S21, opening the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the first movable liquid tank;

[0036] Step S22, when the first movable liquid tank moves to the bottom, the third movable liquid tank is located at the top, the first movable liquid tank presses the third liquid cylinder, the liquid in the first movable liquid tank flows into the third liquid cylinder, and presses the third cylinder to descend along the third cylinder piston, squeezing the gas in the third cylinder;

[0037] Step S23, opening the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the third movable liquid tank, so that the third movable liquid tank increases in weight and becomes heavier than the first movable liquid tank. The third movable liquid tank descends, and the first movable liquid tank ascends to drive the first car to ascend to the top synchronously. If it needs to stop at a certain floor, it is temporarily stopped by manual control. During the ascending process of the first movable liquid tank, the third cylinder resets and ascends, driving the third cylinder piston to ascend, and the liquid in the third liquid cylinder flows from the upper part of the third cylinder piston to the lower part of the third cylinder piston.

[0038] Step S24, when the third movable liquid tank reaches the bottom, the third movable liquid tank presses against the transfer liquid cylinder, and the liquid in the third movable liquid tank flows into the transfer liquid cylinder, and then flows from the transfer liquid cylinder into the third liquid cylinder;

[0039] Step S25, opening the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the first movable liquid tank, so that the first movable liquid tank increases in weight and becomes heavier than the third movable liquid tank. The first movable liquid tank descends and is temporarily stopped by manual control when it reaches a certain floor and the third movable liquid tank rises to the top.

[0040] Step S26, when the first movable liquid tank moves to the bottom, the first movable liquid tank presses the third liquid cylinder, the liquid in the first movable liquid tank flows into the third liquid cylinder, and presses the third cylinder to descend along the third cylinder piston, squeezing the gas in the third cylinder, and the third cylinder piston presses the liquid below the third cylinder piston back into the fixed liquid tank; return to step S23;

[0041] Steps S23 to S26 are cyclically executed to enable the liquid-powered intelligent lifting device to operate continuously.

[0042] Compared with the prior art, the liquid-powered intelligent lifting device and its operating method of the present invention, by setting a fixed liquid tank, a first movable liquid tank, a second movable liquid tank or a third movable liquid tank, a first car, a first pressure pump, a linkage mechanism, a generator, a battery, a transmission device, a plurality of solenoid valves, a control mechanism and other components, utilizes the circulation of liquid to make the first car move up and down under the gravity of the liquid, and generates electricity during operation and stores it in the battery. The battery powers the electrical control components to control the solenoid valves and the like to realize the reciprocating flow of the liquid, thereby realizing the lifting function without the need for electric drive, can meet the needs of lifting in specific occasions, and can even supply power to the outside to meet the daily electricity needs of residents. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 This is a schematic structural diagram of a liquid-powered intelligent lifting device according to a first embodiment of the present invention;

[0045] Figure 2 for Figure 1 A schematic diagram of the liquid-powered intelligent lifting device shown in another state;

[0046] Figure 3 for Figure 1 A schematic diagram of the coordination between the first movable liquid tank, the first car and its guide mechanism in the liquid-powered intelligent lifting device shown;

[0047] Figure 4 for Figure 3 A schematic side view of the elevator shaft shown;

[0048] Figure 5 for Figure 1 The structural schematic diagram of the linkage mechanism in the liquid-powered intelligent lifting device shown;

[0049] Figure 6 for Figure 5 A schematic top view of the linkage mechanism and the first car shown;

[0050] Figure 7 for Figure 5 A schematic diagram of the structure of the winch shaft in the linkage mechanism shown;

[0051] Figure 8 for Figure 1 The schematic diagram of the connection of some electrical components in the liquid-powered intelligent lifting device shown;

[0052] Fig. 9 for Figure 1 A schematic structural diagram of a first combined piston in a liquid-powered intelligent lifting device in a fitted state;

[0053] Fig.10 for Fig. 9 The structural schematic diagram of the first combined piston 1 in a separated state is shown;

[0054] Fig.11 for Fig. 9 A schematic top view of the upper middle portion of the first combined piston is shown;

[0055] Fig.12 for Fig. 9 A schematic top view of the lower portion of the first combined piston;

[0056] Fig.13 for Figure 1 A schematic diagram of the first movable liquid box and the first liquid cylinder in the liquid-powered intelligent lifting device before they abut against each other;

[0057] Fig.14 for Fig.13 A schematic diagram showing the first movable liquid box abutting against the first liquid cylinder;

[0058] Fig.15 for Figure 1 A schematic diagram of the operation process of the liquid-powered intelligent lifting device is shown;

[0059] Fig.16 This is a structural schematic diagram of a liquid-powered intelligent lifting device according to a second embodiment of the present invention;

[0060] Fig.17 for Fig.16 A schematic diagram of the liquid-powered intelligent lifting device shown in another state;

[0061] Fig.18 for Fig.16 A schematic diagram of the coordination between the first movable liquid tank, the first car and its guide mechanism in the liquid-powered intelligent lifting device shown;

[0062] Fig.19 for Fig.16 A schematic diagram of the structure of the second linkage mechanism in the liquid-powered intelligent lifting device shown;

[0063] Fig. 20 for Fig.16 Schematic diagram of the operation process of the liquid-powered intelligent lifting device shown. DETAILED DESCRIPTION

[0064] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0065] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0066] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0068] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0069] Figures 1 to 15 The figure is a schematic diagram of a liquid-powered intelligent lifting device and its operation method according to the first embodiment of the present invention. The liquid-powered intelligent lifting device is a double-well type. The liquid is water or other flowing substances.

[0070] like Figures 1 to 15 As shown, in this embodiment, the liquid-powered intelligent lifting device includes a fixed liquid tank 1, a first movable liquid tank 2, a second movable liquid tank 3, a first car 4, a first pressure pump 5, a first linkage mechanism 6, a generator 7, a battery 8, a transmission device 9, a plurality of solenoid valves 10, a control mechanism 11, a second car 12, and a second pressure pump 13.

[0071] like Figure 1 , Figure 2 As shown, in this embodiment, the fixed liquid tank 1 is located at the top of the device, and is used to store liquid and supply liquid to the first movable liquid tank 2 and the second movable liquid tank 3. The fixed liquid tank 1 can be one, which supplies liquid to the two movable liquid tanks uniformly, or two, which supply liquid to the two movable liquid tanks separately. The upper part of the fixed liquid tank 1 is provided with a liquid inlet for liquid to flow in, and the bottom is provided with a liquid outlet through a pipeline ( Figure 1 , Figure 2The first movable liquid tank 2 and the second movable liquid tank 3 are connected (indicated by lines in the figure). Solenoid valves 10 are provided in the flow passages of the fixed liquid tank 1 and the first movable liquid tank 2 and the second movable liquid tank 3 to control the liquid in the fixed liquid tank 1 to flow to the first movable liquid tank 2 and the second movable liquid tank 3. The solenoid valves 10 are closed in a natural state to disconnect the flow passages. When it is necessary to make the liquid in the fixed liquid tank 1 flow to the first movable liquid tank 2 or the second movable liquid tank 3, the corresponding solenoid valves 10 are opened to make the flow passages unobstructed, and the liquid in the fixed liquid tank 1 flows to the first movable liquid tank 2 or the second movable liquid tank 3 due to its own gravity.

[0072] The first movable liquid tank 2 is located below the first car 4 and connected to the first car 4, so that the first movable liquid tank 2 can drive the first car 4 to move synchronously. The two are located in a lift shaft and can move up and down along the lift shaft together. Figure 3 , Figure 4 As shown, a guide rail 14 is installed on the side wall of the elevator shaft, and rollers 15 are installed on both sides of the first car 4 and the first movable liquid tank 2. The rollers 15 and the guide rails 14 form a guide structure to guide the first car 4 and the first movable liquid tank 2 to move up and down. The first car 4 can carry people or goods, and its structure can refer to the existing elevator car. The first movable liquid tank 2 is provided with a liquid inlet on the top to connect to the fixed liquid tank 1, and a liquid outlet on the bottom.

[0073] The second movable liquid tank 3 is located below the second car 12 and connected to the second car 12, so that the first movable liquid tank 2 can drive the second car 12 to move synchronously. The two are located in another elevator shaft and can move up and down along the elevator shaft together. The structure of the second car 12 and the second movable liquid tank 3 is the same as that of the first car 4 and the first movable liquid tank 2, so they will not be repeated here.

[0074] The first linkage mechanism 6 connects the first movable liquid tank 2 and the second movable liquid tank 3, so that the first movable liquid tank 2 and the second movable liquid tank 3 move synchronously. When the first movable liquid tank 2 descends, the second movable liquid tank 3 is driven to rise; when the second movable liquid tank 3 descends, the first movable liquid tank 2 is driven to rise. The specific structure of the first linkage mechanism 6 will be described in detail below.

[0075] When the liquid-powered intelligent lifting device is in operation, the weight of the first movable liquid tank 2 is adjusted by controlling whether the liquid in the fixed liquid tank 1 flows to the first movable liquid tank 2, and the weight of the second movable liquid tank 3 is adjusted by controlling whether the liquid in the fixed liquid tank 1 flows to the second movable liquid tank 3. When the first movable liquid tank 2 is heavier than the second movable liquid tank 3, the first movable liquid tank 2 descends, driving the second movable liquid tank 3 to rise ( Figure 2The first movable liquid tank 2 is in the state of descending to the bottom end; when the second movable liquid tank 3 is focused on the side of the first movable liquid tank 2, the second movable liquid tank 3 descends, driving the first movable liquid tank 2 to rise ( Figure 1 The second movable liquid tank 3 is in the state of descending to the bottom). When the first car 4 and the second car 12 reach the required floor, they can stop temporarily to allow people to go up and down or to load and unload goods.

[0076] In this embodiment, Figure 1 , Figure 2 as well as Figures 9 to 12 As shown, the first pressure pump 5 is located at the bottom of the lifting shaft where the first movable liquid tank 2 is located (also the bottom of the entire liquid-powered intelligent lifting device), and includes a first liquid cylinder 51, a first cylinder piston 52 and a first combined piston 53. The first combined piston 53 includes a first cylinder 531 and a first hydraulic piston 532 that are fixed to each other. The first cylinder 531 and the first hydraulic piston 532 cooperate with the first cylinder piston 52 and the first liquid cylinder 51, respectively, to form a pneumatic pump structure and a hydraulic pump structure. The pneumatic pump structure can play a buffering role when the first movable liquid tank 2 descends to the first pressure pump 5, and can make the first combined piston 53 return to its original position when the first movable liquid tank 2 leaves the first pressure pump 5. The size of the first hydraulic piston 532 in the hydraulic pump structure is much larger than the liquid outlet of the first liquid cylinder 51, forming a booster pump, so that the liquid in the first liquid cylinder 51 can be pumped to the fixed liquid tank 1 at a high place.

[0077] The first liquid cylinder 51 has a liquid inlet at the upper end corresponding to the liquid outlet of the first movable liquid tank 2, and a liquid outlet at the lower end connected to the liquid inlet of the fixed liquid tank 1 through a pipeline (a one-way valve is provided in the flow channel between the first liquid cylinder 51 and the fixed liquid tank 1, so that the liquid can only flow from the first liquid cylinder 51 to the fixed liquid tank 1, and the liquid in the fixed liquid tank 1 cannot flow to the first liquid cylinder 51). In this embodiment, Fig.13 , Fig.14 As shown, the liquid outlet of the first movable liquid tank 2 is provided with a piston member 22 with an abutment portion 21 at the end. In the natural state, the piston member 22 blocks the liquid outlet. When the first movable liquid tank 2 is close to the first liquid cylinder 51, the abutment portion 21 is pushed up by the first pressure pump 5 (in this embodiment, it is pushed up by the abutment portion 511 provided on the housing of the first liquid cylinder 51, and of course it can also be other structural forms), driving the piston member 22 to move up and away from the liquid outlet, so that the liquid in the first movable liquid tank 2 flows into the first liquid cylinder 51. Of course, in other embodiments, valves or other structures can also be used. It is understandable that a one-way valve should also be provided at the liquid inlet of the first liquid cylinder 51, so that the liquid can only flow from the first movable liquid tank 2 to the first liquid cylinder 51, and the liquid in the first liquid cylinder 51 cannot flow out from the liquid inlet.

[0078] After the first movable liquid tank 2 descends and abuts the first liquid cylinder 51, the liquid in the first movable liquid tank 2 flows into the first liquid cylinder 51 and is located above the first hydraulic piston 532; after the first movable liquid tank 2 rises and leaves the first liquid cylinder 51, the first cylinder 531 drives the first hydraulic piston 532 to rise, and the liquid in the first movable liquid tank 2 flows below the first hydraulic piston 532; after the first movable liquid tank 2 descends again and abuts the first liquid cylinder 51, the first hydraulic piston 532 presses the liquid below the first hydraulic piston 532 back into the fixed liquid tank 1. In this way, the liquid can circulate in the fixed liquid tank 1, the first movable liquid tank 2, the first liquid cylinder 51 and the connecting pipeline.

[0079] To achieve the above functions, in this embodiment, the first hydraulic piston 532 includes an upper portion 533, a lower portion 534, and a sealing ring 535. The upper portion 533 is fixed to the first cylinder 531 and is provided with a plurality of first through holes 536. The lower portion 534 is provided with a second through hole 537 corresponding to each of the first through holes 536. The bottom end of the first through hole 536 is staggered with the top end of the corresponding second through hole 537. The sealing ring 535 is located on the upper surface of the lower portion 534, which covers the bottom end of the first through hole 536 but does not cover the top end of the second through hole 537. A limiting mechanism (not shown) for limiting the separation distance between the upper portion 533 and the lower portion 534 is provided between the upper portion 533 and the lower portion 534, so that when the first cylinder 531 moves downward, the upper portion 533 abuts against the sealing ring 535 (such as Fig. 9 ), the first through hole 536 is not connected to the second through hole 537, and the liquid above the first hydraulic piston 532 cannot enter the first hydraulic piston 532; when the first cylinder 531 moves upward, the upper part 533 is separated from the sealing ring 535 (such as Fig.10 ), the first through hole 536 is connected to the second through hole 537, and the liquid above the first hydraulic piston 532 can enter the first hydraulic piston 532 through the first through hole 536, the gap between the upper part 533 and the lower part 534, and the second through hole 537. Of course, in other embodiments, other different structures can also be used to achieve the above functions.

[0080] The second pressure pump 13 is located at the bottom of the lifting shaft where the second active liquid tank 3 is located, and includes a second liquid cylinder, a second cylinder piston and a second combined piston. The second combined piston includes a second fixed cylinder and a second hydraulic piston. The second cylinder and the second hydraulic piston cooperate with the second cylinder piston and the second liquid cylinder respectively. The second liquid cylinder has a liquid inlet at the upper end corresponding to the liquid outlet of the second active liquid tank, and a liquid outlet at the lower end connected to the liquid inlet of the fixed liquid tank. After the second active liquid tank descends and abuts the second liquid cylinder, the liquid in the second active liquid tank flows into the second liquid cylinder and is located above the second hydraulic piston. After the second active liquid tank rises and leaves the second liquid cylinder, the second cylinder drives the second hydraulic piston to rise, and the liquid in the second active liquid tank flows to the bottom of the second hydraulic piston. After the second active liquid tank descends again and abuts the second liquid cylinder, the second hydraulic piston presses the liquid under the second hydraulic piston back to the fixed liquid tank. The structures of the second liquid cylinder, the second cylinder piston and the second combined piston are the same as those of the first liquid cylinder, the first cylinder piston and the first combined piston, so they will not be repeated here.

[0081] In this embodiment, Figures 5 to 8 As shown, the first linkage mechanism 6, the transmission device 9 (in this embodiment, the pulley transmission device 9), the generator 7, and the battery 8 are connected in sequence. When the first linkage mechanism 6 moves, it drives the generator 7 to generate electricity through the transmission device 9, and the electricity generated by the generator 7 is stored by the battery 8. The solenoid valve 10, the control mechanism 11 and other electrical parts are connected to the battery 8 to supply power through the battery 8. The battery 8 can also provide power for lighting inside and outside the car, and even provide daily electricity for residents.

[0082] The solenoid valve 10 is connected to the control mechanism 11, so that the opening and closing of the solenoid valve 10 is controlled by the control mechanism 11. This control is automatic control, for example, by setting a sensor mechanism such as a liquid level sensor (detecting the amount of liquid in each active liquid tank), when a certain solenoid valve 10 needs to be opened, the control mechanism 11 issues a command to the solenoid valve 10. Figure 3 As shown, in this embodiment, the control mechanism 11 is arranged on the top of the car, and the solenoid valve 10 is arranged at the liquid inlet position of the movable liquid tank to facilitate the connection between the control mechanism 11 and the solenoid valve 10.

[0083] In this embodiment, Figures 5 to 7 As shown, the first linkage mechanism 6 includes a gear set 61, a plurality of hoisting shafts 62 (8 in this embodiment), a plurality of pulleys 63 (8 in this embodiment), and a plurality of suspension ropes 64 (8 in this embodiment). The first movable liquid tank 2 and the second movable liquid tank 3 are connected to the corresponding hoisting shafts 62 by suspension ropes 64 passing around the pulleys 63 (in this embodiment, each movable liquid tank is connected to four suspension ropes 64, and each suspension rope 64 is installed at four corners of the top of the car, such as Figure 6As shown in FIG. 1 ), each hoist shaft 62 is connected through a gear set 61, so that each hoist shaft 62 is linked, so that when the first movable liquid tank 2 rises / falls, the second movable liquid tank 3 falls / rises synchronously. In this embodiment, the two hoist shafts 62 arranged in front and behind are connected to the gear set 61 through a shaft (as shown in FIG. 1 ). Figure 6 , Figure 7 As shown), the gear set 61 only needs four connecting shafts to connect the winch shaft 62. In order to ensure the smooth lifting and lowering of each movable liquid tank, the rotation speeds of the winch shafts 62 on the left and right sides of each movable liquid tank should be the same and in opposite directions. The first movable liquid tank 2 and the second movable liquid tank 3 should also be such that one side rises and the other side falls synchronously. These can be achieved by setting the parameters of each gear inside the gear set 61, which can be understood and implemented by ordinary technicians in this field, so they are not described in detail here, and the number and matching of specific gears are not shown in the figure. One of the gears in the gear set 61 is connected to a rotating shaft 611, and the rotating shaft 611 is connected to the transmission device 9 to drive the transmission device 9 to move when the gear set 61 is running, thereby achieving power generation.

[0084] In this embodiment, an electromagnetic brake 16 is also installed on the rotating shaft 611. The electromagnetic brake 16 is powered by the battery 8 and is used to manually control the electromagnetic brake 16 to temporarily stop the first car 4 and the second car 12 when they reach the required floor. In this embodiment, the electromagnetic brake 16 is connected to the relay switch 17, the relay switch 17 is wirelessly connected to the control mechanism 11, and the control mechanism 11 is connected to the operation panel 18 (which can be set in the car or on the wall of each floor). By manually operating the operation panel 18, a command is sent to the control mechanism 11, and the control mechanism 11 transmits a signal to the relay switch 17 by wireless means, and the electromagnetic brake 16 is controlled by the relay switch 17 to achieve the temporary stop of the first car 4.

[0085] Because the car is movable, the battery 8 can use a brush-like method to power the control mechanism 11, solenoid valve 10 and operation panel on the car. For example, copper bars are arranged along the guide rails, and the copper bars are connected to the battery 8, and elastic copper sheets are arranged on the car, so that the copper bars and the copper sheets are in contact and cooperate with each other to realize the electrical connection between the battery 8 and the electrical components on the car.

[0086] like Fig.15 As shown, the operation method of the liquid-powered intelligent lifting device is described as follows.

[0087] At the beginning, a certain amount of liquid is stored in the fixed liquid tank 1.

[0088] Step S11: At this time, the first movable liquid tank 2 is at the bottom, and the second movable liquid tank 3 is at the top. The first movable liquid tank 2 presses against the first liquid cylinder 51, and has pressed against the first gas cylinder 531 to descend along the first gas cylinder piston 52, squeezing the gas in the first gas cylinder 531 (such as Fig.15 (as shown in A1 in the figure).

[0089] Step S12, open the corresponding solenoid valve 10 to allow the liquid in the fixed liquid tank 1 to flow into the first movable liquid tank 2, and the liquid in the first movable liquid tank 2 to flow into the first liquid cylinder 51 (such as Fig.15 (as shown in A2 and A3).

[0090] Of course, the first movable liquid tank 2 can also be at other positions at the beginning. Then, after opening the corresponding solenoid valve 10 to allow the liquid in the fixed liquid tank 1 to flow into the first movable liquid tank 2, the first movable liquid tank 2 will move to the bottom, and the first movable liquid tank 2 will press the first liquid cylinder 51. The liquid in the first movable liquid tank 2 will flow into the first liquid cylinder 51, and press the first cylinder 531 to descend along the first cylinder piston 52, squeezing the gas in the first cylinder 531. That is, there is no sequential relationship between steps S11 and S12. Step S11 (letting the first movable liquid tank 2 be at the bottom) can be performed first and then step S12 (adding liquid to the first movable liquid tank 2), or step S12 (adding liquid to the first movable liquid tank 2) can be performed first and then step S11 (letting the first movable liquid tank 2 be at the bottom). This solution covers these two solutions, and the order of steps S11 and S12 is not limited.

[0091] Step S13, open the corresponding solenoid valve 10 to allow the liquid in the fixed liquid tank 1 to flow into the second movable liquid tank 3, so that the second movable liquid tank 3 increases in weight (such as Fig.15 As shown in A4 in the figure, it is heavier than the first movable liquid tank 2. The second movable liquid tank 3 descends, and the first movable liquid tank 2 ascends, driving the first car 4 to ascend synchronously to the top. If it reaches a certain floor and needs to stop, it is temporarily stopped by manual control. During the ascending process of the first movable liquid tank 2, the first cylinder 531 resets and ascends, driving the first hydraulic piston 532 to ascend. The liquid in the first liquid cylinder 51 flows from the top of the first hydraulic piston 532 to the bottom of the first hydraulic piston 532 (as shown in A4 in the figure). Fig.15 (as shown in A5 in the figure).

[0092] Step S14: When the second movable liquid tank 3 reaches the bottom, the second movable liquid tank 3 presses against the second liquid cylinder, and the liquid in the second movable liquid tank 3 flows into the second liquid cylinder, and presses against the second cylinder to descend along the second cylinder piston, squeezing the gas in the second cylinder (such as Fig.15 (as shown in A6 in the figure).

[0093] Step S15, open the corresponding solenoid valve 10 to allow the liquid in the fixed liquid tank 1 to flow into the first movable liquid tank 2, so that the first movable liquid tank 2 increases in weight (such as Fig.15As shown in A7 in the figure, it is heavier than the second movable liquid tank 3. The first movable liquid tank 2 descends, and the second movable liquid tank 3 rises, driving the second car 12 to rise synchronously to the top. If it reaches a certain floor and needs to stop, it will be temporarily stopped by manual control. During the rising process of the second movable liquid tank 3, the second cylinder resets and rises, driving the second hydraulic piston to rise, and the liquid in the second liquid cylinder flows from the upper part of the second hydraulic piston to the lower part of the second hydraulic piston (as shown in A7 in the figure). Fig.15 (as shown in A8 in the figure).

[0094] Step S16, when the first movable liquid tank 2 moves to the bottom, the first movable liquid tank 2 presses the first liquid cylinder 51, and the liquid in the first movable liquid tank 2 flows into the first liquid cylinder 51, and presses the first cylinder 531 to move down along the first cylinder piston 52, squeezing the gas in the first cylinder 531, and driving the first hydraulic piston 532 to move down, and the first hydraulic piston 532 presses the liquid under the first hydraulic piston 532 back to the fixed liquid tank 1 (such as Fig.15 (as shown in A9 in the figure).

[0095] Step S17, open the corresponding solenoid valve 10 to allow the liquid in the fixed liquid tank 1 to flow into the second movable liquid tank 3, so that the second movable liquid tank 3 increases in weight (such as Fig.15 As shown in A10 in the figure, it is heavier than the first movable liquid tank 2. The second movable liquid tank 3 descends, and the first movable liquid tank 2 ascends to drive the first car 4 to ascend synchronously to the top. If it reaches a certain floor and needs to stop, it is temporarily stopped by manual control. During the ascending process of the first movable liquid tank 2, the first cylinder 531 resets and ascends, driving the first hydraulic piston 532 to ascend. The liquid in the first liquid cylinder 51 flows from the upper part of the first hydraulic piston 532 to the lower part of the first hydraulic piston 532 (as shown in the figure). Fig.15 (as shown in A11 in the figure).

[0096] Step S18, when the second movable liquid tank 3 reaches the bottom, the second movable liquid tank 3 presses against the second liquid cylinder, and the liquid in the second movable liquid tank 3 flows into the second liquid cylinder, and presses against the second cylinder to descend along the second cylinder piston, squeezing the gas in the second cylinder, and the second hydraulic piston presses the liquid under the second hydraulic piston back into the fixed liquid tank 1 (such as Fig.15 As shown in A12); return to step S15.

[0097] Steps S15 to S18 are run in a loop to enable the liquid-powered intelligent lifting device to run continuously.

[0098] Figures 16 to 20 Schematic diagram of a liquid-powered intelligent lifting device and an operating method thereof according to a second embodiment of the present invention.

[0099] like Figures 16 to 20As shown, the main difference from the first embodiment is that this embodiment is a single-well type, without a second car and a second pressure pump. The third movable liquid tank 3' replaces the second movable liquid tank 3. The first car 4, generator, battery, transmission device, solenoid valve, and control mechanism are basically the same as those of the first embodiment. The second linkage mechanism 6' (such as Fig.19 The principle of the first linkage mechanism 6 is the same as that of the first linkage mechanism 6, and most of the structures are also the same, which will not be repeated here.

[0100] The third pressure pump 5' is located at the bottom of the device, and comprises a third liquid cylinder 51', a third gas cylinder piston 52' and a third combined piston. The third combined piston includes a third air cylinder 531' and a third hydraulic piston 532' which are fixed to each other. The third cylinder 531' and the third hydraulic piston 532' cooperate with the third cylinder piston 52' and the third liquid cylinder 51' respectively. The third liquid cylinder 51' is provided with a liquid inlet at the upper end corresponding to the liquid outlet of the third movable liquid tank, and a liquid outlet at the lower end which is connected with the liquid inlet of the fixed liquid tank. After the third movable liquid tank descends and abuts the third liquid cylinder 51', the liquid in the third movable liquid tank flows into the third liquid cylinder 51' and is located above the third hydraulic piston 532'. After the third movable liquid tank rises and leaves the third liquid cylinder 51', the third air cylinder 531' drives the third hydraulic piston 532' to rise, and the liquid in the third movable liquid tank flows to the bottom of the third hydraulic piston 532'. After the third movable liquid tank descends again and abuts the third liquid cylinder 51', the third hydraulic piston 532' presses the liquid under the third hydraulic piston 532' back into the fixed liquid tank.

[0101] The structure of the third hydraulic piston 532' is the same as the first hydraulic piston in the first embodiment, and also includes an upper part, a lower part, and a sealing ring. The upper part is fixed to the third cylinder and includes a plurality of first through holes. The lower part is provided with a second through hole corresponding to each first through hole. The bottom end of the first through hole is staggered with the top end of the corresponding second through hole. The sealing ring is located on the upper surface of the lower part, which covers the bottom end of the first through hole but does not cover the top end of the second through hole. A limiting mechanism for limiting the separation distance between the upper part and the lower part is provided between the upper part and the lower part, so that when the third cylinder moves downward, the upper part abuts against the sealing ring, the first through hole is not connected with the second through hole, and the liquid above the third hydraulic piston cannot enter the third hydraulic piston; when the third cylinder moves upward, the upper part is separated from the sealing ring, the first through hole is connected with the second through hole, and the liquid above the third hydraulic piston can enter the third hydraulic piston through the first through hole, the gap between the upper part and the lower part, and the second through hole.

[0102] In this embodiment, because it is a single shaft, a bracket 20 is provided in the lifting shaft for supporting the first movable liquid tank 2, the first car 4 and the third movable liquid tank 3'. The guide rail is provided on the bracket 20. A transfer cylinder 19 is provided below the third movable liquid tank 3'. The upper end of the transfer cylinder 19 is provided with a liquid inlet corresponding to the liquid outlet of the third movable liquid tank 3', and the lower end is provided with a liquid outlet connected to the third liquid cylinder 51'. After the third movable liquid tank 3' descends and abuts the transfer cylinder 19, the liquid in the third movable liquid tank 3' flows into the third liquid cylinder 51' through the transfer cylinder 19; after the first movable liquid tank 2 descends and abuts the third liquid cylinder 51', the third hydraulic piston 532' presses this part of the liquid back into the fixed liquid tank 1.

[0103] like Fig. 20 As shown, the operation method of the liquid-powered intelligent lifting device includes:

[0104] Step S21, at the beginning, a certain amount of liquid is stored in the fixed liquid tank 1. At this time, the first movable liquid tank 2 is located at the bottom, and the third movable liquid tank 3' is located at the top. The first movable liquid tank 2 presses against the third liquid cylinder 51', and has pressed against the third gas cylinder 531' to descend along the third gas cylinder piston 52', squeezing the gas in the third cylinder 531' (such as Fig. 20 (as shown in B1);

[0105] Step S22, open the corresponding solenoid valve to allow the liquid in the fixed liquid tank 1 to flow into the first movable liquid tank 2, and the liquid in the first movable liquid tank 2 to flow into the third liquid cylinder 51' (such as Fig. 20 As shown in B2 and B3 in the figure); as in the first embodiment, steps S21 and S22 have no sequential relationship.

[0106] Step S23, open the corresponding solenoid valve to allow the liquid in the fixed liquid tank 1 to flow into the third movable liquid tank 3', so that the third movable liquid tank 3' increases in weight (such as Fig. 20 As shown in B4 in the figure, it is heavier than the side of the first movable liquid tank 2. The third movable liquid tank 3' descends, and the first movable liquid tank 2 rises to drive the first car 4 to rise to the top synchronously. If it reaches a certain floor and needs to stop, it is temporarily stopped by manual control. During the rising process of the first movable liquid tank 2, the third cylinder 531' resets and rises, driving the third hydraulic piston 532' to rise, and the liquid in the third liquid cylinder 51' flows from the upper part of the third hydraulic piston 532' to the lower part of the third hydraulic piston 532' (as shown in the figure). Fig. 20 (as shown in B5);

[0107] Step S24: When the third movable liquid tank 3' reaches the bottom, the third movable liquid tank 3' presses against the transfer liquid cylinder 19, and the liquid in the third movable liquid tank 3' flows into the transfer liquid cylinder 19, and then flows from the transfer liquid cylinder 19 into the third liquid cylinder 51' (eg Fig. 20 (as shown in B6);

[0108] Step S25, open the corresponding solenoid valve to allow the liquid in the fixed liquid tank 1 to flow into the first movable liquid tank 2, so that the first movable liquid tank 2 increases in weight (such as Fig. 20 As shown in B7 in the figure), it is heavier than the third movable liquid tank 3' side, the first movable liquid tank 2 descends, and if it needs to stop at a certain floor, it is temporarily stopped by manual control, and the third movable liquid tank 3' rises to the top;

[0109] Step S26, when the first movable liquid tank 2 moves to the bottom, the first movable liquid tank 2 presses the third liquid cylinder 51', the liquid in the first movable liquid tank 2 flows into the third liquid cylinder 51', and presses the third cylinder 531' to move down along the third cylinder piston 52', squeezing the gas in the third cylinder 531', and the third hydraulic piston 532' presses the liquid under the third hydraulic piston 532' back into the fixed liquid tank 1 (such as Fig. 20 As shown in B8); return to step S23;

[0110] Steps S23 to S26 are cyclically executed to enable the liquid-powered intelligent lifting device to operate continuously.

[0111] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A liquid-powered intelligent lifting device, characterized in that: It includes a fixed liquid tank, a first movable liquid tank, a second movable liquid tank, a first car, a first pressure pump, a linkage mechanism, a generator, a battery, a transmission device, a plurality of solenoid valves, a control mechanism, a second car, and a second pressure pump; The linkage mechanism connects the first movable liquid tank and the second movable liquid tank, so that when the first movable liquid tank descends, the second movable liquid tank is driven to rise, and when the second movable liquid tank descends, the first movable liquid tank is driven to rise; the first movable liquid tank is provided with a liquid inlet and a liquid outlet, the first movable liquid tank is connected to the first car, and when the first movable liquid tank moves, the first car is driven to move synchronously; the second movable liquid tank is provided with a liquid inlet and a liquid outlet, the second movable liquid tank is connected to the second car, and when the second movable liquid tank moves, the second car is driven to move synchronously; the fixed liquid tank is located at the top of the device, and the fixed liquid tank is also provided with a liquid inlet and a liquid outlet, and its outlet The liquid port is connected to the liquid inlet of the first movable liquid tank and the liquid inlet of the second movable liquid tank, and a solenoid valve is arranged in the flow channel to control the liquid in the fixed liquid tank to flow to the first movable liquid tank and the second movable liquid tank; by controlling whether the liquid in the fixed liquid tank flows to the first movable liquid tank and the second movable liquid tank, the weight of the first movable liquid tank and the weight of the second movable liquid tank are adjusted, when the first movable liquid tank is heavier than the second movable liquid tank, the first movable liquid tank descends, driving the second movable liquid tank to rise; when the second movable liquid tank is heavier than the first movable liquid tank, the second movable liquid tank descends, driving the first movable liquid tank to rise; The first pressure pump is located at the bottom of the device, and includes a first liquid cylinder, a first cylinder piston and a first combined piston. The first combined piston includes a first cylinder and a first hydraulic piston that are fixed to each other. The first cylinder and the first hydraulic piston cooperate with the first cylinder piston and the first liquid cylinder respectively. The upper end of the first liquid cylinder is provided with a liquid inlet corresponding to the liquid outlet of the first movable liquid tank, and the lower end is provided with a liquid outlet that is connected to the liquid inlet of the fixed liquid tank. After the first movable liquid tank descends and abuts the first liquid cylinder, the liquid in the first movable liquid tank flows into the first liquid cylinder and is located above the first hydraulic piston. After the first movable liquid tank rises and leaves the first liquid cylinder, the first cylinder drives the first hydraulic piston to rise, and the liquid in the first movable liquid tank flows to the bottom of the first hydraulic piston. After the first movable liquid tank descends again and abuts the first liquid cylinder, the first hydraulic piston presses the liquid under the first hydraulic piston back to the fixed liquid tank. The second pressure pump is located at the bottom of the device, and includes a second liquid cylinder, a second cylinder piston and a second combined piston. The second combined piston includes a second cylinder and a second hydraulic piston that are fixed to each other. The second cylinder and the second hydraulic piston cooperate with the second cylinder piston and the second liquid cylinder respectively. The upper end of the second liquid cylinder is provided with a liquid inlet corresponding to the liquid outlet of the second active liquid tank, and the lower end is provided with a liquid outlet that is connected to the liquid inlet of the fixed liquid tank. After the second active liquid tank descends and abuts the second liquid cylinder, the liquid in the second active liquid tank flows into the second liquid cylinder and is located above the second hydraulic piston. After the second active liquid tank rises and leaves the second liquid cylinder, the second cylinder drives the second hydraulic piston to rise, and the liquid in the second active liquid tank flows to the bottom of the second hydraulic piston. After the second active liquid tank descends again and abuts the second liquid cylinder, the second hydraulic piston presses the liquid under the second hydraulic piston back into the fixed liquid tank. The linkage mechanism, transmission device, generator, and battery are connected in sequence. When the linkage mechanism moves, the transmission device is connected to drive the generator to generate electricity, and the electricity generated by the generator is stored in the battery. The solenoid valve and the control mechanism are connected to a battery so as to supply power through the battery; the solenoid valve is connected to the control mechanism so as to control the opening and closing of the solenoid valve through the control mechanism.

2. The liquid-powered intelligent lifting device according to claim 1, characterized in that: The linkage mechanism includes a gear set, multiple winch shafts, multiple pulleys, and multiple lifting ropes. The first movable liquid tank and the second movable liquid tank are respectively connected to the corresponding winch shafts by lifting ropes passing around pulleys. The winch shafts are connected through a gear set to achieve linkage. When the first movable liquid tank rises / descends, the second movable liquid tank descends / rises; one of the gears in the gear set is connected to a rotating shaft, and the rotating shaft is connected to a transmission device to drive the transmission device to move when the gear set is running.

3. The liquid-powered intelligent lifting device according to claim 2, characterized in that: An electromagnetic brake is installed on the rotating shaft, and the electromagnetic brake is powered by a battery. The electromagnetic brake is used to temporarily stop the first car when it reaches the required floor by manually controlling the electromagnetic brake. The electromagnetic brake is connected to a relay switch, and the relay switch is wirelessly connected to a control mechanism. The control mechanism is connected to an operation panel. By manually operating the operation panel, an instruction is sent to the control mechanism, and the control mechanism transmits a signal to the relay switch wirelessly. The electromagnetic brake is controlled by the relay switch to achieve temporary stopping of the first car.

4. The liquid-powered intelligent lifting device according to claim 1, characterized in that: The first hydraulic piston includes an upper part, a lower part, and a sealing ring. The upper part is fixed to the first cylinder and includes a plurality of first through holes. The lower part is provided with a second through hole corresponding to each first through hole. The bottom end of the first through hole is staggered with the top end of the corresponding second through hole. The sealing ring is located on the upper surface of the lower part, which covers the bottom end of the first through hole but does not cover the top end of the second through hole. A limiting mechanism for limiting the separation distance between the upper part and the lower part is provided between the upper part and the lower part, so that when the first cylinder moves downward, the upper part abuts against the sealing ring, the first through hole is not connected with the second through hole, and the liquid above the first hydraulic piston cannot enter the first hydraulic piston; when the first cylinder moves upward, the upper part is separated from the sealing ring, the first through hole is connected with the second through hole, and the liquid above the first hydraulic piston can enter the first hydraulic piston through the first through hole, the gap between the upper part and the lower part, and the second through hole; the structure of the second hydraulic piston is the same as that of the first hydraulic piston.

5. A liquid-powered intelligent lifting device, characterized in that: It includes a fixed liquid tank, a first movable liquid tank, a third movable liquid tank, a first car, a third pressure pump, a linkage mechanism, a generator, a battery, a transmission device, a plurality of solenoid valves, a control mechanism, and a transfer cylinder; The linkage mechanism connects the first movable liquid box and the third movable liquid box, so that when the first movable liquid box descends, the third movable liquid box is driven to rise, and when the third movable liquid box descends, the first movable liquid box is driven to rise; the first movable liquid box is provided with a liquid inlet and a liquid outlet, and the first movable liquid box is connected to the first car, and when the first movable liquid box moves, it drives the first car to move synchronously; the third movable liquid box is provided with a liquid inlet and a liquid outlet; the fixed liquid box is located at the top of the device, and the fixed liquid box is also provided with a liquid inlet and a liquid outlet, and its liquid outlet connects the first movable liquid box and the third movable liquid box The liquid inlet of the fixed liquid tank is provided, and a solenoid valve is provided in the flow channel to control the liquid in the fixed liquid tank to flow to the first movable liquid tank and the third movable liquid tank; by controlling whether the liquid in the fixed liquid tank flows to the first movable liquid tank and the third movable liquid tank, the weight of the first movable liquid tank and the weight of the third movable liquid tank are adjusted, when the first movable liquid tank is heavier than the third movable liquid tank, the first movable liquid tank descends, driving the third movable liquid tank to rise; when the third movable liquid tank is heavier than the first movable liquid tank, the third movable liquid tank descends, driving the first movable liquid tank to rise; The third pressure pump is located at the bottom of the device, and includes a third liquid cylinder, a third cylinder piston and a third combined piston. The third combined piston includes a third cylinder and a third hydraulic piston that are fixed to each other. The third cylinder and the third hydraulic piston cooperate with the third cylinder piston and the third liquid cylinder respectively. The upper end of the third liquid cylinder is provided with a liquid inlet corresponding to the liquid outlet of the third active liquid tank, and the lower end is provided with a liquid outlet that is connected to the liquid inlet of the fixed liquid tank. After the third active liquid tank descends and abuts the third liquid cylinder, the liquid in the third active liquid tank flows into the third liquid cylinder and is located above the third hydraulic piston. After the third active liquid tank rises and leaves the third liquid cylinder, the third cylinder drives the third hydraulic piston to rise, and the liquid in the third active liquid tank flows to the bottom of the third hydraulic piston. After the third active liquid tank descends again and abuts the third liquid cylinder, the third hydraulic piston presses the liquid under the third hydraulic piston back into the fixed liquid tank. The transfer cylinder is located below the third movable liquid tank. The upper end of the transfer cylinder is provided with a liquid inlet corresponding to the liquid outlet of the third movable liquid tank, and the lower end is provided with a liquid outlet connected to the third liquid cylinder. After the third movable liquid tank descends to abut against the transfer cylinder, the liquid in the third movable liquid tank flows into the third liquid cylinder through the transfer cylinder; after the first movable liquid tank descends to abut against the third liquid cylinder, the third hydraulic piston presses this part of the liquid back into the fixed liquid tank. The linkage mechanism, transmission device, generator, and battery are connected in sequence. When the linkage mechanism moves, the transmission device is connected to drive the generator to generate electricity, and the electricity generated by the generator is stored in the battery. The solenoid valve and the control mechanism are connected to a battery so as to supply power through the battery; the solenoid valve is connected to the control mechanism so as to control the opening and closing of the solenoid valve through the control mechanism.

6. The liquid-powered intelligent lifting device according to claim 5, characterized in that: The linkage mechanism includes a gear set, multiple winch shafts, multiple pulleys, and multiple lifting ropes. The first movable liquid tank and the third movable liquid tank are respectively connected to the corresponding winch shafts by lifting ropes passing around pulleys. The winch shafts are connected through a gear set to achieve linkage. When the first movable liquid tank rises / descends, the third movable liquid tank descends / rises; one of the gears in the gear set is connected to a rotating shaft, and the rotating shaft is connected to a transmission device to drive the transmission device to move when the gear set is running.

7. The liquid-powered intelligent lifting device according to claim 6, characterized in that: An electromagnetic brake is installed on the rotating shaft, and the electromagnetic brake is powered by a battery. The electromagnetic brake is used to temporarily stop the first car when it reaches the required floor by manually controlling the electromagnetic brake. The electromagnetic brake is connected to a relay switch, and the relay switch is wirelessly connected to a control mechanism. The control mechanism is connected to an operation panel. By manually operating the operation panel, an instruction is sent to the control mechanism, and the control mechanism transmits a signal to the relay switch wirelessly. The electromagnetic brake is controlled by the relay switch to achieve temporary stopping of the first car.

8. The liquid-powered intelligent lifting device according to claim 5, characterized in that: The third hydraulic piston includes an upper part, a lower part, and a sealing ring. The upper part is fixed to the third cylinder and includes a plurality of first through holes. The lower part is provided with a second through hole corresponding to each first through hole. The bottom end of the first through hole is staggered with the top end of the corresponding second through hole. The sealing ring is located on the upper surface of the lower part, which covers the bottom end of the first through hole but does not cover the top end of the second through hole. A limiting mechanism for limiting the separation distance between the upper part and the lower part is provided between the upper part and the lower part, so that when the third cylinder moves downward, the upper part abuts against the sealing ring, the first through hole is not connected with the second through hole, and the liquid above the third hydraulic piston cannot enter the third hydraulic piston; when the third cylinder moves upward, the upper part is separated from the sealing ring, the first through hole is connected with the second through hole, and the liquid above the third hydraulic piston can enter the third hydraulic piston through the first through hole, the gap between the upper part and the lower part, and the second through hole.

9. An operating method of a liquid powered intelligent lifting device according to any one of claims 1 to 4, characterized in that: include: Step S11, opening the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the first movable liquid tank; Step S12, when the first movable liquid tank moves to the bottom, the second movable liquid tank is located at the top, the first movable liquid tank presses against the first liquid cylinder, the liquid in the first movable liquid tank flows into the first liquid cylinder, and presses against the first cylinder to descend along the first cylinder piston, squeezing the gas in the first cylinder; Step S13, open the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the second movable liquid tank, so that the second movable liquid tank increases in weight and becomes heavier than the first movable liquid tank. The second movable liquid tank descends, and the first movable liquid tank ascends, driving the first car to synchronously ascend to the top. If it needs to stop at a certain floor, it is temporarily stopped by manual control. During the ascending process of the first movable liquid tank, the first cylinder resets and ascends, driving the first hydraulic piston to ascend, and the liquid in the first liquid cylinder flows from the upper part of the first hydraulic piston to the lower part of the first hydraulic piston. Step S14, when the second movable liquid tank reaches the bottom, the second movable liquid tank presses against the second liquid cylinder, and the liquid in the second movable liquid tank flows into the second liquid cylinder, and presses against the second cylinder to descend along the second cylinder piston, squeezing the gas in the second cylinder; Step S15, open the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the first movable liquid tank, so that the first movable liquid tank increases in weight and becomes heavier than the second movable liquid tank. The first movable liquid tank descends, and the second movable liquid tank ascends, driving the second liquid tank to synchronously ascend to the top. If it needs to stop at a certain floor, it is temporarily stopped by manual control. During the ascending process of the second movable liquid tank, the second cylinder resets and ascends, driving the second hydraulic piston to ascend, and the liquid in the second liquid cylinder flows from the upper part of the second hydraulic piston to the lower part of the second hydraulic piston. Step S16, when the first movable liquid tank moves to the bottom, the first movable liquid tank presses against the first liquid cylinder, and the liquid in the first movable liquid tank flows into the first liquid cylinder, and presses against the first cylinder to descend along the first cylinder piston, squeezing the gas in the first cylinder, and the first hydraulic piston presses the liquid below the first hydraulic piston back into the fixed liquid tank; Step S17, open the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the second movable liquid tank, so that the second movable liquid tank increases in weight and becomes heavier than the first movable liquid tank. The second movable liquid tank descends, and the first movable liquid tank ascends to drive the first car to ascend synchronously to the top. If it needs to stop at a certain floor, it is temporarily stopped by manual control. During the ascending process of the first movable liquid tank, the first cylinder resets and ascends, driving the first hydraulic piston to ascend, and the liquid in the first liquid cylinder flows from the upper part of the first hydraulic piston to the lower part of the first hydraulic piston. Step S18, when the second movable liquid tank reaches the bottom, the second movable liquid tank presses against the second liquid cylinder, and the liquid in the second movable liquid tank flows into the second liquid cylinder, and presses against the second cylinder to descend along the second cylinder piston, squeezing the gas in the second cylinder, and the second hydraulic piston presses the liquid under the second hydraulic piston back into the fixed liquid tank; Return to step S15; Steps S15 to S18 are cyclically executed to enable the liquid-powered intelligent lifting device to operate continuously.

10. An operating method of a liquid powered intelligent lifting device according to any one of claims 5 to 8, characterized in that: include: Step S21, opening the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the first movable liquid tank; Step S22, when the first movable liquid tank moves to the bottom, the third movable liquid tank is located at the top, the first movable liquid tank presses the third liquid cylinder, the liquid in the first movable liquid tank flows into the third liquid cylinder, and presses the third cylinder to descend along the third cylinder piston, squeezing the gas in the third cylinder; Step S23, opening the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the third movable liquid tank, so that the third movable liquid tank increases in weight and becomes heavier than the first movable liquid tank. The third movable liquid tank descends, and the first movable liquid tank ascends to drive the first car to ascend to the top synchronously. If it needs to stop at a certain floor, it is temporarily stopped by manual control. During the ascending process of the first movable liquid tank, the third cylinder resets and ascends, driving the third cylinder piston to ascend, and the liquid in the third liquid cylinder flows from the upper part of the third cylinder piston to the lower part of the third cylinder piston. Step S24, when the third movable liquid tank reaches the bottom, the third movable liquid tank presses against the transfer liquid cylinder, and the liquid in the third movable liquid tank flows into the transfer liquid cylinder, and then flows from the transfer liquid cylinder into the third liquid cylinder; Step S25, opening the corresponding solenoid valve to allow the liquid in the fixed liquid tank to flow into the first movable liquid tank, so that the first movable liquid tank increases in weight and becomes heavier than the third movable liquid tank. The first movable liquid tank descends and is temporarily stopped by manual control when it reaches a certain floor and the third movable liquid tank rises to the top. Step S26, when the first movable liquid tank moves to the bottom, the first movable liquid tank presses against the third liquid cylinder, and the liquid in the first movable liquid tank flows into the third liquid cylinder, and presses against the third cylinder to descend along the third cylinder piston, squeezing the gas in the third cylinder, and the third cylinder piston presses the liquid below the third cylinder piston back into the fixed liquid tank; Return to step S23; Steps S23 to S26 are cyclically executed to enable the liquid-powered intelligent lifting device to operate continuously.

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