Intelligent control hydraulic elevator

Abstract

The utility model relates to an intelligent control hydraulic elevator which comprises an elevator support, a hydraulic mechanism fixed to the lower end of the elevator support, a hydraulic swing mechanism fixed to the side face of the hydraulic mechanism, a counterweight fixed to the side face of the elevator support, a lift car fixed to the middle of the elevator support and a steel wire connecting the counterweight and the lift car. Through the elaborately designed hydraulic mechanism and hydraulic recovery mechanism, the energy recovery and output of the hydraulic system can be accurately controlled, and the energy consumption of the hydraulic system can be greatly reduced; and through the elaborate design of the recovery mechanism, the energy recovery rate of the hydraulic system can be increased, the energy utilization rate of the hydraulic elevator is increased, and stable and efficient lifting of the hydraulic elevator is achieved.

Description

Technical Field

[0001] The utility model relates to the field of elevators, in particular to an intelligent controlled hydraulic elevator. Background Art

[0002] Although traditional hydraulic elevators have advantages such as large carrying capacity and smooth operation, they have serious energy consumption problems during operation. On the one hand, the hydraulic system consumes a large amount of energy to drive the elevator up and down when working, and this energy is often not effectively recycled during the descent of the elevator, resulting in a huge waste of energy. On the other hand, the existing hydraulic elevators are not precise enough in the control of energy recovery and output, resulting in low energy utilization efficiency and increased operating costs of the elevator. For example, the patent with publication number CN206108642U discloses a hydraulically driven bottom-level vertical elevator. This device has the following shortcomings in the field of hydraulic lifting equipment: it is difficult to solve the high energy consumption of hydraulic elevators and it is impossible to fully utilize the characteristics of the hydraulic system to reduce energy consumption. Utility Model Content

[0003] (1) Technical problems solved

[0004] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide an intelligent controlled hydraulic elevator, which solves the problems existing in the existing technology. Through carefully designed hydraulic mechanisms and hydraulic recovery mechanisms, the recovery and output of hydraulic system energy can be accurately controlled, which can greatly reduce the energy consumption of the hydraulic system; and through the careful design of the recovery mechanism, the gravitational potential energy of the car and counterweight can be stored in the recovery mechanism and released when hydraulic pressure is required, which can improve the energy recovery rate of the hydraulic system, enhance the energy utilization rate of the hydraulic elevator, and realize smooth and efficient lifting and lowering of the hydraulic elevator.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned object, the present utility model provides the following technical solution: an intelligent controlled hydraulic elevator, comprising an elevator frame, a hydraulic mechanism fixed to the lower end of the elevator frame, a hydraulic recovery mechanism fixed to the side of the hydraulic mechanism, a counterweight fixed to the side of the elevator frame, a car fixed in the middle of the elevator frame, and a steel wire connecting the counterweight and the car;

[0007] The hydraulic mechanism includes a hydraulic station fixed at the lower end of the elevator bracket, a first hydraulic pipe fixed on the side of the hydraulic station, a first solenoid valve fixed on the first hydraulic pipe, a second solenoid valve fixed on the first hydraulic pipe, a counterweight hydraulic cylinder fixed on the side of the second solenoid valve, a third solenoid valve fixed at the other end of the counterweight hydraulic cylinder, a second hydraulic pipe fixed on the side of the third solenoid valve, a fourth solenoid valve fixed at one end of the second hydraulic pipe, a fifth solenoid valve fixed at the other end of the second hydraulic pipe, a third hydraulic pipe fixed at the other end of the fifth solenoid valve, a sixth solenoid valve fixed at the other end of the third hydraulic pipe, a fourth hydraulic pipe connected to one side of the third hydraulic pipe, a seventh solenoid valve fixed on the other side of the fourth hydraulic pipe, a car hydraulic cylinder fixed at the other end of the seventh solenoid valve, and an eighth solenoid valve connecting the hydraulic station to the car hydraulic cylinder.

[0008] Preferably, the hydraulic recovery mechanism includes a shell fixed on the elevator bracket, a hydraulic oil piston fixed to the upper end of the shell, a connecting rod fixed to the center of the hydraulic oil piston, a compression spring installed on the outside of the connecting rod, a sealed bottom shell fixed to the lower end of the compression spring and an air piston fixed to the other side of the connecting rod.

[0009] Preferably, the hydraulic oil piston includes a piston fitted inside the housing, a first sealing ring installed on the outside of the piston, a second sealing ring installed on the outside of the piston, a third sealing ring installed inside the piston, and a fourth piston ring installed inside the piston.

[0010] Preferably, the second sealing ring and the third sealing ring are made of graphite, and a groove is provided inside the second sealing ring.

[0011] Preferably, a fifth sealing ring is provided on the outside of the air piston, a circular groove is provided on the bottom, and the edge of the circular groove is provided with rounded corners.

[0012] (3) Beneficial effects

[0013] This utility model aims to provide an intelligently controlled hydraulic elevator. This device utilizes the coordinated operation of multiple components, including a hydraulic mechanism and a hydraulic recovery mechanism, to achieve smoother and more efficient elevator operation, significantly improving energy utilization and enabling energy-saving and environmentally friendly hydraulic elevator operation. The design also enhances elevator controllability and reduces labor costs, making it an innovative technology with broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the hydraulic mechanism in the utility model.

[0016] Figure 3 It is a schematic diagram of the hydraulic recovery mechanism in the utility model.

[0017] Figure 4 It is a schematic diagram of the hydraulic oil piston in the utility model.

[0018] Figure 5 It is a schematic diagram of the air piston in the utility model.

[0019] In the figure: 1- elevator support, 2- hydraulic mechanism, 201- hydraulic station, 202- first hydraulic pipe, 203- first solenoid valve, 204- second solenoid valve, 205- counterweight hydraulic cylinder, 206- third solenoid valve, 207- second hydraulic pipe, 208- fourth solenoid valve, 209- fifth solenoid valve, 210- third hydraulic pipe, 211- sixth solenoid valve, 212- car hydraulic cylinder, 213- fourth hydraulic cylinder, 214- seventh solenoid valve, 215- Eight solenoid valves, 3-hydraulic recovery mechanism, 301-housing, 302-hydraulic oil piston, 3021-piston, 3022-first sealing ring, 3023-second sealing ring, 3024-third sealing ring, 3025-fourth sealing ring, 303-connecting rod, 304-compression spring, 305-sealing bottom shell, 306-air piston, 3061-fifth sealing ring, 3062-circular groove, 3063-rounded corner, 4-counterweight, 5-car, 6-steel wire. DETAILED DESCRIPTION

[0020] The following is a combination of the appended examples of the present invention Figure 1 -Attached Figure 5 The technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] The utility model provides a technical solution: an intelligent controlled hydraulic elevator, comprising an elevator support 1, a hydraulic mechanism 2 fixed at the lower end of the elevator support 1, a hydraulic recovery mechanism 3 fixed at the side of the hydraulic mechanism 2, a counterweight 4 fixed at the side of the elevator support 1, a car 5 fixed in the middle of the elevator support 1 and a steel wire 6 connecting the counterweight 4 and the car 5; the elevator support 1 serves as the supporting structure of the entire elevator, providing a foundation for installation and fixation of the hydraulic mechanism 2, the hydraulic recovery mechanism 3, the counterweight 4, the car 5, etc., ensuring the stable position of each component of the elevator and ensuring the safety and stability of the elevator operation; the hydraulic mechanism 2 serves as the power source for the entire elevator lifting; the hydraulic recovery mechanism 3 recovers the gravitational potential energy in the system and converts the pressure energy back into gravitational potential energy when the hydraulic cylinder needs power; the weight of the counterweight 4 is half of the maximum load capacity of the elevator car 5, which can ensure maximum redundancy; the car 5 is used to carry people and goods; the steel wire 6 is used to connect the car 5 and the counterweight 4 to ensure that the counterweight can offset part of the gravity of the car 5 and reduce the energy consumption of the hydraulic system.

[0022] The hydraulic mechanism 2 includes a hydraulic station 201 fixed to the lower end of the elevator support 1, a first hydraulic pipe 202 fixed to the side of the hydraulic station 201, a first solenoid valve 203 fixed to the first hydraulic pipe 202, a second solenoid valve 204 fixed to the first hydraulic pipe 202, a counterweight hydraulic cylinder 205 fixed to the side of the second solenoid valve 204, a third solenoid valve 206 fixed to the other end of the counterweight hydraulic cylinder 205, a second hydraulic pipe 207 fixed to the side of the third solenoid valve 206, a fourth solenoid valve 208 fixed to one end of the second hydraulic pipe 207, a fifth solenoid valve 209 fixed to the other end of the second hydraulic pipe 207, and a third hydraulic pipe 21 fixed to the other end of the fifth solenoid valve 209. 0, a sixth solenoid valve 211 fixed to the other end of the third hydraulic pipe 210, a fourth hydraulic pipe 213 connected to one side of the third hydraulic pipe 210, a seventh solenoid valve 214 fixed to the other side of the fourth hydraulic pipe 213, a car hydraulic cylinder 212 fixed to the other end of the seventh solenoid valve 214, and an eighth solenoid valve 215 connecting the hydraulic station 201 to the car hydraulic cylinder 212; the hydraulic station 201 is the power source of the entire hydraulic mechanism 2, providing hydraulic power for the elevator's lifting and lowering, and by outputting high-pressure hydraulic oil, pushing the hydraulic cylinder to work, thereby realizing the movement of the car 5 and the counterweight 4. The first hydraulic pipe 202 connects the hydraulic station 201 and the hydraulic cylinder for delivering hydraulic oil to the hydraulic cylinder. The first solenoid valve 203 is fixed Between the first hydraulic pipe 202 and the car hydraulic cylinder 212, the opening and closing of the oil inlet channel of the car hydraulic cylinder 212 is controlled. The second solenoid valve 204 is fixed between the first hydraulic pipe 202 and the counterweight hydraulic cylinder 205, and is used to control the opening and closing of the oil inlet channel of the counterweight hydraulic cylinder 205. The counterweight hydraulic cylinder 205 is a plunger cylinder, which relies on pressure to lift the counterweight 4 and lowers it by the weight of the counterweight 4. The third solenoid valve 206 controls the opening and closing of the oil outlet channel of the counterweight hydraulic cylinder 205. The second hydraulic pipe 207 serves as the return oil channel of the hydraulic oil of the two hydraulic cylinders, and returns the hydraulic oil to the hydraulic station 201. The fourth solenoid valve 208 is used to control whether the hydraulic oil returns to the hydraulic station 201. The fifth solenoid valve 209 is used to control whether the return hydraulic oil flows into the hydraulic recovery mechanism 3. The third hydraulic pipe 210 is used to connect the return channel of the hydraulic mechanism 2 with the hydraulic recovery structure 3. The opening and closing of the sixth solenoid valve 211 can allow the return hydraulic oil to enter the hydraulic recovery mechanism 3 to store the pressure. The fourth hydraulic pipe 213 allows the hydraulic oil in the car hydraulic cylinder 212 to enter the hydraulic recovery mechanism 3. The opening and closing of the seventh solenoid valve 214 can control the flow direction of the hydraulic oil in the car hydraulic cylinder 212. The car hydraulic cylinder 212 is a plunger cylinder, which relies on pressure to lift the car 5 and relies on the weight of the car 5 to press it down. The eighth solenoid valve 215 is used to directly discharge the hydraulic oil in the car hydraulic cylinder 212.

[0023] The hydraulic recovery mechanism 3 includes a housing 301 fixed to the elevator support 1, a hydraulic oil piston 302 fixed to the upper end of the housing 301, a connecting rod 303 fixed to the center of the hydraulic oil piston 302, a compression spring 304 installed on the outside of the connecting rod 303, a sealed bottom housing 305 fixed to the lower end of the compression spring 304, and an air piston 306 fixed to the other side of the connecting rod 303. The housing 301 provides protection and installation space for other components of the hydraulic recovery mechanism 3. This ensures that the hydraulic oil piston 302, connecting rod 303, and compression spring 304 operate in a stable environment, preventing external factors from interfering with the recovery mechanism. The hydraulic oil in the hydraulic piston 302 pushes it, compressing the rear spring 304. The sealed bottom housing 305 separates the compressed air area at the rear from the front compression spring 304. When the hydraulic oil pushes the hydraulic oil piston 302, the connecting rod 303 pushes the air piston 306, compressing the air at the rear end to store energy.

[0024] The hydraulic oil piston 302 includes a piston 3021 fitted inside the housing 301, a first sealing ring 3022 installed on the outside of the piston 3021, a second sealing ring 3023 installed on the outside of the piston 3021, a third sealing ring 3024 installed inside the piston 3021 and a fourth sealing ring 3025 installed inside the piston 3021; the function of these sealing rings is to ensure the sealing between the piston and the housing to prevent leakage of hydraulic oil.

[0025] The second sealing ring 3023 and the third sealing ring 3024 are made of graphite, and a groove is provided inside the second sealing ring 3023; the second sealing ring 3023 and the third sealing ring 3024 made of graphite have good wear resistance and sealing properties, and can maintain stable performance during long-term use. In addition, graphite can act as a solid lubricant to reduce wear on other sealing rings.

[0026] The air piston 306 is equipped with a fifth sealing ring 3061 on its outer side and a circular groove 3062 on its bottom, with rounded corners 3063 along its edges. Connected to the connecting rod 303, it works in conjunction with the hydraulic oil piston 302. Movement of the hydraulic oil piston 302 drives movement of the air piston 306, changing the volume and pressure of the air, further enhancing energy recovery. The fifth sealing ring 3061 on the outer side ensures a tight seal between the air piston and the housing. The circular groove 3062 and rounded corners 3063 on the bottom help reduce air resistance and improve the efficiency of the air piston 306.

[0027] Working principle:

[0028] When it is necessary to rise, the hydraulic station 201 pumps the hydraulic oil into the car hydraulic cylinder 212. At this time, the first solenoid valve 203 is opened, the seventh solenoid valve 214 and the eighth solenoid valve 215 are closed, and the hydraulic oil is pumped into the car hydraulic cylinder 212. Initially, the hydraulic oil in the counterweight hydraulic cylinder 205 will flow into the hydraulic recovery mechanism 3 first. At this time, the second solenoid valve 204 is closed, the fourth solenoid valve 208 is closed, the third solenoid valve 206, the fifth solenoid valve 209 and the sixth solenoid valve 211 are opened, and the hydraulic oil enters the hydraulic recovery mechanism 3. After the hydraulic recovery mechanism 3 completes energy storage, the fifth solenoid valve 209 is closed, the fourth solenoid valve 208 is opened, and the hydraulic oil flows back to the hydraulic station 201.

[0029] When it is necessary to descend, the hydraulic station 201 pumps the hydraulic oil into the counterweight hydraulic cylinder 205. At this time, the second solenoid valve 204 is opened and the third solenoid valve 206 is closed. When it is necessary to recover hydraulic energy, the fourth solenoid valve 208 and the seventh solenoid valve 214 are opened, and the hydraulic oil flows back to the hydraulic recovery mechanism 3. After the energy storage is completed, the sixth solenoid valve 211 is closed, and the hydraulic oil flows back to the hydraulic station 201.

[0030] When the energy of the hydraulic recovery mechanism 3 needs to be released at the same time, the third solenoid valve 206 and the fourth solenoid valve 208 are closed, and the fifth solenoid valve 209, the sixth solenoid valve 211 and the seventh solenoid valve 214 are opened to provide power to the car hydraulic cylinder 212; the seventh solenoid valve 214 and the fourth solenoid valve 208 are closed, and the fifth solenoid valve 209, the sixth solenoid valve 211 and the third solenoid valve 206 are opened to provide power to the counterweight hydraulic cylinder 205. At this time, the hydraulic oil of the car hydraulic cylinder 212 can only flow back to the hydraulic station 201 from the eighth solenoid valve 215.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent controlled hydraulic elevator, characterized in that: The invention comprises an elevator support (1), a hydraulic mechanism (2) fixed at the lower end of the elevator support (1), a hydraulic recovery mechanism (3) fixed at the side of the hydraulic mechanism (2), a counterweight (4) fixed at the side of the elevator support (1), a car (5) fixed at the middle of the elevator support (1), and a steel wire (6) connecting the counterweight (4) and the car; The hydraulic mechanism (2) comprises a hydraulic station (201) fixed at the lower end of the elevator support (1), a first hydraulic pipe (202) fixed at the side of the hydraulic station (201), a first solenoid valve (203) fixed on the first hydraulic pipe (202), a second solenoid valve (204) fixed on the first hydraulic pipe (202), a counterweight hydraulic cylinder (205) fixed at the side of the second solenoid valve (204), a third solenoid valve (206) fixed at the other end of the counterweight hydraulic cylinder (205), a second hydraulic pipe (207) fixed at the side of the third solenoid valve (206), and a third solenoid valve (207) fixed at one end of the second hydraulic pipe (207). A fourth solenoid valve (208), a fifth solenoid valve (209) fixed at the other end of the second hydraulic pipe (207), a third hydraulic pipe (210) fixed at the other end of the fifth solenoid valve (209), a sixth solenoid valve (211) fixed at the other end of the third hydraulic pipe (210), a fourth hydraulic pipe (213) connected to one side of the third hydraulic pipe (210), a seventh solenoid valve (214) fixed at the other side of the fourth hydraulic pipe (213), a car hydraulic cylinder (212) fixed at the other end of the seventh solenoid valve (214), and an eighth solenoid valve (215) connecting the hydraulic station (201) to the car hydraulic cylinder (212).

2. The intelligent controlled hydraulic elevator according to claim 1, characterized in that: The hydraulic recovery mechanism (3) comprises a housing (301) fixed on the elevator support (1), a hydraulic oil piston (302) fixed on the upper end of the housing (301), a connecting rod (303) fixed at the center of the hydraulic oil piston (302), a compression spring (304) installed on the outside of the connecting rod (303), a sealed bottom shell (305) fixed on the lower end of the compression spring (304), and an air piston (306) fixed on the other side of the connecting rod (303).

3. The intelligent controlled hydraulic elevator according to claim 2, characterized in that: The hydraulic oil piston (302) includes a piston (3021) fitted inside the housing (301), a first sealing ring (3022) installed on the outside of the piston (3021), a second sealing ring (3023) installed on the outside of the piston (3021), a third sealing ring (3024) installed inside the piston (3021), and a fourth sealing ring (3025) installed inside the piston (3021).

4. The intelligent controlled hydraulic elevator according to claim 3, characterized in that: The second sealing ring (3023) and the third sealing ring (3024) are made of graphite, and a groove is provided inside the second sealing ring (3023).

5. The intelligent controlled hydraulic elevator according to claim 2, characterized in that: A fifth sealing ring (3061) is provided on the outside of the air piston (306), a circular groove (3062) is provided on the bottom, and a rounded corner (3063) is provided on the edge of the circular groove (3062).

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