Household hydraulic elevator

Abstract

The invention discloses a household hydraulic elevator, and relates to the technical field of elevators. The elevator comprises an aluminum alloy derrick, a vertically-arranged hydraulic lifting mechanism is fixedly installed in the aluminum alloy derrick, a driving end is installed on one side of the hydraulic lifting mechanism in a driving mode, and a main lift car is fixedly installed on one side of the driving end; the hydraulic lifting mechanism is used for driving the driving end to vertically and linearly move along the aluminum alloy derrick so as to drive the main lift car to ascend and descend, and an extended cargo lift car is slidably mounted in the main lift car. By arranging the expanded cargo lift car, when the internal space of the lift car needs to be expanded, passengers leave the lift car, the hydraulic calling box drives the expanded hydraulic rod to drive the expanded cargo lift car to slide outwards, then the expanded cargo lift car is unfolded, the main lift car and the expanded cargo lift car jointly form the cargo lift car, and therefore a larger cargo space is obtained; the problem that a traditional hydraulic elevator is difficult to deal with the freight demand of the villa is solved.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and specifically to a household hydraulic elevator. Background Technology

[0002] Hydraulic villa elevators can be installed without a shaft or pit, offering numerous advantages such as high shaft utilization, good safety, high reliability, strong stability, relatively fast speed, strong load capacity, and low noise. Furthermore, compared to direct-acting hydraulic elevators, they have a simple structure and low failure rate. When descending, the hydraulic elevator is driven by the pressure generated by its own weight. It comes standard with a UPS uninterruptible power supply, allowing it to still send descent commands to the control system during power outages, ensuring the elevator safely and slowly descends to the ground floor. Subsequent maintenance costs are low; the hydraulic oil only needs to be replaced every two years based on usage frequency, and other maintenance procedures are simple and easy to operate.

[0003] Hydraulic elevators are generally used in large buildings, villas, residential buildings, and low- to mid-rise residential buildings. For renovation projects that require elevators, hydraulic elevators are a good choice because the renovation of old buildings is limited by the civil engineering structure. Hydraulic elevators used in villas are generally only equipped with passenger elevators. However, because villas have large interior and exterior spaces and their furnishing dimensions exceed standard dimensions, the space capacity of the passenger elevator is insufficient to meet the freight needs of villas. It is necessary to install a separate freight elevator or use the freight elevator directly as a passenger elevator, which is inconvenient. Therefore, a home hydraulic elevator is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the problem that hydraulic villa elevators typically only have passenger elevators, which makes it difficult to meet the freight needs of villas. This necessitates the installation of a separate freight elevator or the direct use of the freight elevator as a passenger elevator, which is inconvenient. Therefore, this invention provides a home hydraulic elevator.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution: A home hydraulic elevator includes an aluminum alloy shaft. A vertically mounted hydraulic lifting mechanism is fixedly installed inside the aluminum alloy shaft. A drive end is driven to one side of the hydraulic lifting mechanism, and a main car is fixedly installed to one side of the drive end. The hydraulic lifting mechanism drives the main car to rise and fall by driving the drive end to move vertically along the aluminum alloy shaft. An extended cargo car is slidably installed inside the main car. A horizontally mounted extended hydraulic rod is fixedly installed on the bottom inner wall of the main car. The extension direction of the extended hydraulic rod is away from the location of the hydraulic lifting mechanism. The bottom of the extended cargo car... The side wall has a hydraulic rod groove corresponding to the position of the extended hydraulic rod. The extended hydraulic rod is located inside the hydraulic rod groove. The telescopic end of the extended hydraulic rod is fixedly connected to the inner wall of the hydraulic rod groove. An upper elevator is fixedly installed on the side of the bottom of the extended cargo car away from the drive end. A flipping hole is opened inside one side of the extended cargo car. A flipping plate is installed inside the flipping hole. An elevator handrail is fixedly installed on the side of the flipping plate inside the extended cargo car. A transmission box is fixedly installed on one side of the extended cargo car. A flipping control mechanism for controlling the flipping plate to flip is installed inside the transmission box.

[0006] Furthermore, a raised plate is provided on one side of the main car, and a hydraulic rod receiving groove adapted to the extended hydraulic rod and a plurality of traction cable receiving grooves adapted to the reinforcing traction cable are opened on one side of the raised plate.

[0007] Furthermore, lifting claws are fixedly installed at the four corners of the other side of the main car, and four spring claws adapted to the lifting claws are fixedly installed on one side of the main car.

[0008] Furthermore, the bottom of the extended cargo car has two roller grooves, and a wheel axle is rotatably installed inside each roller groove. A wheel frame is fixedly sleeved on the wheel axle, and a support wheel is rotatably installed at one end of the wheel frame. A spring box is fixedly installed inside the roller groove, and one end of the wheel axle is rotatably connected to the spring box.

[0009] Furthermore, the tilting control mechanism includes a tilting motor fixedly installed inside the transmission box. A transmission groove communicating with the tilting hole is opened on the side wall of the extended cargo car. Tilting rods are fixedly installed on both sides of the tilting plate. One tilting rod is rotatably installed on the inner wall of the tilting hole, and the other tilting rod is rotatably installed on the inner wall of the transmission groove. A tilting gear is fixedly sleeved on the tilting rod. A control shaft is driven and installed at the output end of the tilting motor. A control gear meshing with the tilting gear is fixedly sleeved on the control shaft. Elastic rubber plates are fixedly installed on the top and bottom of the tilting plate. A C-shaped clearance plate adapted to the transmission box is fixedly installed on one side of the main car.

[0010] Furthermore, a vertically arranged limiting electric push rod is fixedly installed inside the transmission box, and a limiting slide plate is fixedly installed at the telescopic end of the limiting electric push rod. Two limiting slide rails, respectively distributed on the upper and lower sides of the limiting slide plate, are fixedly installed inside the transmission box, and the limiting slide plate is slidably installed inside the two limiting slide rails.

[0011] Furthermore, multiple evenly distributed reinforcing traction cables are fixedly installed on the bottom inner wall of the main car, and the reinforcing traction cables are all horizontally arranged. Multiple cableway grooves corresponding to the positions of the reinforcing traction cables are opened on the bottom side wall of the extended cargo car. One end of each of the reinforcing traction cables extends into the interior of the multiple cableway grooves and is fixedly installed with a limit slider. A reinforcing traction machine is fixedly installed on the top of the main car, and a reinforcing traction belt is wound on the drive end of the reinforcing traction machine. A pulley is fixedly installed on the top of the main car. A traction frame is fixedly installed on the side of the top of the extended cargo car away from the hydraulic lifting mechanism. One end of the reinforcing traction belt passes through the pulley and is fixedly connected to the top of the traction frame.

[0012] The beneficial effects of this invention are as follows: 1. This invention, by setting up an extended cargo car, allows the extended cargo car to slide outwards when the internal space of the car needs to be expanded for transporting goods, after the passengers leave the car, the extended hydraulic rod is driven by the hydraulic call box to expand the extended cargo car, thereby realizing the expansion of the extended cargo car. The main car and the extended cargo car together form a cargo car, thus obtaining a larger cargo space and solving the problem that traditional hydraulic elevators are relatively difficult to handle when dealing with the cargo needs of villas. 2. This invention uses a raised platform so that after the extended cargo car is deployed, the raised platform on one side of the main car can be removed and placed at the bottom of the extended cargo car, thereby raising the extended cargo car so that the bottom height of the extended cargo car is level with the bottom height of the main car. It also covers and protects the extended hydraulic rod, and is locked between the main car and the extended cargo car to provide horizontal support and prevent the extended cargo car from rolling back. 3. By setting up a wheel frame, the present invention enables the support wheels to rotate toward the location of the hydraulic lifting mechanism when the main car slides and extends. This causes the wheel frame to contact the inclined inner wall of the roller groove and stop rotating, thereby allowing the two support wheels to contact the frame or the floor of the car hall to support and fix the extended cargo car, preventing the extended cargo car from shaking up and down when loading goods from the upper car ladder. 4. By setting up a flipping control mechanism, when a larger freight space is needed, the flipping motor drives the flipping plate to flip. The upper and lower elastic rubber plates can provide room for the flipping plate to flip by utilizing their own elastic deformation characteristics. Then the elevator handrail turns into the inside of the transmission box, so that the smooth side is located inside the extended freight car, thereby preventing the elevator handrail from occupying the internal space of the extended freight car and obstructing freight transportation. 5. This invention, by setting up a reinforced traction cable and a reinforced traction machine, enables the reinforced traction cable to pull the bottom of the extended cargo car. Similarly, the reinforced traction machine pulls the top of the extended cargo car through the reinforced traction belt and traction frame. When the extended cargo car slides and extends, the limiting slider slides inside the cableway groove, and the reinforced traction machine synchronously unwinds the reinforced traction belt, thereby reinforcing the connection of the extended cargo car from the top and bottom sides respectively. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the extended cargo car storage state of the present invention; Figure 2 This is a three-dimensional structural diagram of the extended cargo car of the present invention in its unfolded state; Figure 3 This is a schematic diagram of the three-dimensional structure of the main car of the present invention; Figure 4 This is a first-view three-dimensional structural diagram of the extended cargo car of the present invention; Figure 5 This is a three-dimensional structural diagram of the extended cargo car from a second perspective according to the present invention; Figure 6 This is a schematic diagram of the internal three-dimensional structure of the transmission box of the present invention; Figure 7 This is the present invention. Figure 6 Schematic diagram of the structure at point A in the middle; Figure 8 This is a three-dimensional structural diagram of the spring box and wheel frame of the present invention. Figure 9 This is a first-view three-dimensional structural diagram of the raised plate of the present invention; Figure 10 This is a two-dimensional structural diagram of the raised plate of the present invention from a second perspective; Reference numerals: 1. Aluminum alloy hoist frame; 2. Hydraulic lifting mechanism; 3. Drive end; 4. Main car; 5. Extended cargo car; 501. Hydraulic rod groove; 502. Transmission groove; 503. Cableway groove; 504. Roller groove; 6. Extended hydraulic rod; 7. Inclined ladder for boarding; 8. Tilting plate; 9. Elevator handrail; 10. Elastic rubber plate; 11. Transmission box; 12. Tilting rod; 13. Tilting gear; 14. Tilting motor; 15. Control shaft; 16. Control gear ; 17. Limiting electric push rod; 18. Limiting sliding plate; 19. Limiting slide rail; 20. C-shaped clearance plate; 21. Reinforced traction cable; 22. Limiting slider; 23. Reinforced traction machine; 24. Reinforced traction belt; 25. Pulley; 26. Traction frame; 27. Elevation plate; 2701. Hydraulic rod receiving groove; 2702. Traction cable receiving groove; 28. Lifting claw; 29. ​​Spring claw; 30. Wheel axle; 31. Spring box; 32. Wheel frame; 33. Support wheel. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0016] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0017] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0018] like Figures 1 to 10As shown, a home hydraulic elevator includes an aluminum alloy frame 1 with a vertically mounted hydraulic lifting mechanism 2 fixedly installed inside, such as... Figure 1 , Figure 2 As shown, specifically, a drive end 3 is installed on one side of the hydraulic lifting mechanism 2, and a main car 4 is fixedly installed on one side of the drive end 3. The hydraulic lifting mechanism 2 is used to drive the drive end 3 to move vertically along the aluminum alloy derrick 1 to lift the main car 4. An extended cargo car 5 is slidably installed inside the main car 4.

[0019] In this embodiment, the hydraulic lifting mechanism 2 includes a hydraulic pump station, valve group, hydraulic cylinder, hydraulic oil tank, etc., and is controlled through the human-machine interface of the hydraulic call box. When the main car 4 needs to move upward, the hydraulic pump station provides the power pressure difference required for the main car 4 to move upward. The valve group controls the flow of hydraulic oil. The hydraulic oil pushes the piston in the hydraulic cylinder, driving the drive end 3 to lift, thereby realizing the upward movement of the main car 4. When the main car 4 needs to move downward, the valve group is opened. The pressure difference generated by the weight of the main car 4, the extended cargo car 5, and passengers, goods, etc., causes the hydraulic oil to flow back into the hydraulic oil tank, realizing the downward movement of the main car 4. The extended hydraulic rod 6 is connected to the hydraulic lifting mechanism 2 and the drive end 3, and is also controlled and driven by the hydraulic call box.

[0020] like Figure 3 , Figure 5 As shown, a horizontally arranged extended hydraulic rod 6 is fixedly installed on the bottom inner wall of the main car 4. The extension direction of the extended hydraulic rod 6 is away from the position of the hydraulic lifting mechanism 2. A hydraulic rod groove 501 corresponding to the position of the extended hydraulic rod 6 is opened on the bottom side wall of the extended cargo car 5. The extended hydraulic rod 6 is located inside the hydraulic rod groove 501. The telescopic end of the extended hydraulic rod 6 is fixedly connected to the inner wall of the hydraulic rod groove 501. An upper car inclined ladder 7 is fixedly installed on the side of the bottom of the extended cargo car 5 away from the drive end 3. A flip hole is opened inside one side of the extended cargo car 5. A flip plate 8 is installed inside the flip hole. An elevator handrail 9 is fixedly installed on the side of the flip plate 8 inside the extended cargo car 5. Figure 4 As shown, a transmission box 11 is fixedly installed on one side of the extended cargo car 5.

[0021] In this embodiment, the extended cargo car 5, located away from the outside of the hydraulic lifting mechanism 2, can be equipped with various types of doors, such as right-angle doors, center-opening doors, side-opening doors, manual doors, and through doors. The hall door is similar. This technical solution does not limit or illustrate these doors. As a preferred embodiment, if an automatic door operator is used, a permanent magnet synchronous frequency conversion door operator can be adopted. This operator has the advantages of low power, high torque, and full closed-loop control of speed, position, and torque. It also eliminates the need for a position feedback switch, saving energy and reducing the failure rate.

[0022] More specifically, under normal conditions, the extended cargo car 5 of this home hydraulic elevator is housed inside the main car 4. The extended cargo car 5 and the main car 4 overlap to form a single car. When passengers enter the main car 4, the hydraulic lifting mechanism 2 drives the drive end 3 to rise through hydraulic action, thereby raising and lowering the main car 4. When it is necessary to expand the interior space of the car to transport goods, passengers leave the car and drive the extended hydraulic rod 6 through the hydraulic call box to slide the extended cargo car 5 outward, thereby unfolding the extended cargo car 5. The main car 4 and the extended cargo car 5 together form a cargo car, thus obtaining a larger cargo space and solving the problem that traditional hydraulic elevators struggle to meet the cargo transportation needs of villas.

[0023] like Figure 1 As shown, a raised platform 27 is provided on one side of the main car 4, specifically, as follows: Figure 9 , Figure 10 As shown, one side of the raised plate 27 is provided with a hydraulic rod receiving groove 2701 adapted to the extended hydraulic rod 6 and a plurality of traction cable receiving grooves 2702 adapted to the reinforcing traction cable 21.

[0024] More specifically, by setting up the shim plate 27, after the main car 4 and the extended cargo car 5 are deployed, the shim plate 27 on one side of the main car 4 can be removed and sent into the interior of the extended cargo car 5. The hydraulic rod receiving groove 2701 and the traction cable receiving groove 2702 face downwards and cover the extended hydraulic rod 6 and the reinforced traction cable 21. The shim plate 27 is placed at the bottom of the extended cargo car 5, thereby raising the extended cargo car 5 so that the bottom height of the extended cargo car 5 is level with the bottom height of the main car 4. It also covers and protects the extended hydraulic rod 6, and is stuck between the main car 4 and the extended cargo car 5, playing a horizontal support role and preventing the extended cargo car 5 from rolling back.

[0025] like Figure 3 , Figure 9 As shown, specifically, four lifting claws 28 are fixedly installed at the four corners of the other side of the main car 4, and four spring claws 29 that are compatible with the lifting claws 28 are fixedly installed on one side of the main car 4.

[0026] More specifically, by setting up lifting claws 28, the lifting claws 28 at the four corners facilitate the handling of the raised platform 27. After the freight is completed, first pull up the lifting claws 28 to pull the raised platform 27 out from the bottom of the extended cargo car 5, then hang the raised platform 27 vertically on one side of the main car 4, and use the four spring clips 29 to hang on the lifting claws 28 respectively, and fix the spring clips 29 to complete the storage.

[0027] like Figure 5 , Figure 8As shown, specifically, the bottom of the extended cargo car 5 has two roller grooves 504, and a wheel axle 30 is rotatably installed inside each roller groove 504. A wheel frame 32 is fixedly sleeved on the wheel axle 30, and a support wheel 33 is rotatably installed at one end of the wheel frame 32. A spring box 31 is fixedly installed inside the roller groove 504, and one end of the wheel axle 30 is rotatably connected to the spring box 31.

[0028] In this embodiment, the coil spring box 31 includes an outer shell as a fixed end and an inner rotating shaft as a rotating end. The inner rotating shaft is rotatably connected to the outer shell, and the inner rotating shaft and the outer shell are elastically connected by a coil spring. One end of the axle 30 is fixedly connected to the rotating end.

[0029] More specifically, by setting up the wheel frame 32, when the main car 4 slides and extends, the wheel frame 32, under the elastic action of the coil spring box 31, causes the support wheel 33 to protrude from the bottom of the roller groove 504 and contact the bottom inner wall of the extended cargo car 5, and then roll. When the roller groove 504 is completely separated from the main car 4, the wheel frame 32 drives the support wheel 33 to rotate toward the position of the hydraulic lifting mechanism 2, so that the wheel frame 32 contacts the inclined inner wall of the roller groove 504 and stops rotating, thereby allowing the two support wheels 33 to contact the frame or the floor of the car hall, supporting and fixing the extended cargo car 5, and preventing the extended cargo car 5 from shaking up and down when loading goods from the upper car inclined ladder 7.

[0030] The transmission box 11 is equipped with a flipping control mechanism for controlling the flipping plate 8 to flip, such as... Figure 6 , Figure 7 As shown, specifically, the tilting control mechanism includes a tilting motor 14 fixedly installed inside the transmission box 11. A transmission groove 502 communicating with the tilting hole is provided on the side wall of the extended cargo car 5. Tilting rods 12 are fixedly installed on both sides of the tilting plate 8. One tilting rod 12 is rotatably installed on the inner wall of the tilting hole, and the other tilting rod 12 is rotatably installed on the inner wall of the transmission groove 502. A tilting gear 13 is fixedly sleeved on the tilting rod 12. A control shaft 15 is driven and installed at the output end of the tilting motor 14. A control gear 16 meshing with the tilting gear 13 is fixedly sleeved on the control shaft 15. Figure 3 , Figure 5 As shown, elastic rubber plates 10 are fixedly installed on the top and bottom of the tilting plate 8, and a C-shaped clearance plate 20 adapted to the transmission box 11 is fixedly installed on one side of the main car 4.

[0031] More specifically, by setting up a flipping control mechanism, the elevator handrail 9 can provide support and reliance for passengers under normal conditions. When a larger freight space is needed, the flipping motor 14 drives one of the flipping rods 12 to rotate through the control shaft 15 and the meshing control gear 16 and flipping gear 13, thereby causing the flipping plate 8 to flip inside the flipping hole. The upper and lower elastic rubber plates 10 can provide room for the flipping plate 8 to flip by utilizing their own elastic deformation characteristics. After that, the elevator handrail 9 rotates into the transmission box 11, so that the smooth side is located inside the extended freight car 5, thereby preventing the elevator handrail 9 from occupying the internal space of the extended freight car 5 and obstructing freight.

[0032] like Figure 6 As shown, specifically, a vertically arranged limiting electric push rod 17 is fixedly installed inside the transmission box 11. A limiting slide plate 18 is fixedly installed at the telescopic end of the limiting electric push rod 17. Two limiting slide rails 19 are fixedly installed inside the transmission box 11, respectively distributed on the upper and lower sides of the limiting slide plate 18. The limiting slide plate 18 is slidably installed inside the two limiting slide rails 19.

[0033] More specifically, by setting a limiting slide plate 18, the limiting electric push rod 17 drives the limiting slide plate 18 to slide up and down inside the two limiting slide rails 19 before and after the flip plate 8 flips, so as to fit and limit the flip plate 8 and prevent the flip plate 8 from rotating on its own under the action of gravity.

[0034] like Figure 3 , Figure 5 As shown, specifically, multiple evenly distributed reinforcing traction cables 21 are fixedly installed on the bottom inner wall of the main car 4. All reinforcing traction cables 21 are horizontally arranged. Multiple cableway grooves 503 are opened on the bottom side wall of the extended cargo car 5, corresponding to the positions of the reinforcing traction cables 21. One end of each reinforcing traction cable 21 extends into the interior of the multiple cableway grooves 503 and is fixedly installed with a limit slider 22. Figure 3 , Figure 4 As shown, a reinforced traction machine 23 is fixedly installed on the top of the main car 4. A reinforced traction belt 24 is wound around the drive end 3 of the reinforced traction machine 23. A pulley 25 is fixedly installed on the top of the main car 4. A traction frame 26 is fixedly installed on the side of the top of the extended cargo car 5 away from the hydraulic lifting mechanism 2. One end of the reinforced traction belt 24 passes through the pulley 25 and is fixedly connected to the top of the traction frame 26.

[0035] As a preferred embodiment of this invention, the enhanced traction machine 23 can adopt an internal rotor traction host, which has a compact and lightweight traction wheel double support structure, making it more stable in operation. It is an ideal choice for villa stairs, and is energy-saving, environmentally friendly, low-noise, and cost-effective.

[0036] In this embodiment, the outer diameter of the limiting slider 22 is larger than the outer diameter of the reinforcing traction cable 21, and the inner diameter of the opening of the cableway groove 503 is smaller than the outer diameter of the limiting slider 22. As a preferred embodiment, both the reinforcing traction cable 21 and the reinforcing traction belt 24 can be made of composite steel belts with a surface coating of high-strength polyurethane material (TPU) to protect the steel wire from corrosion. This is environmentally friendly, requires no lubricating oil, eliminates waste oil treatment, is clean, improves service life, is easier to bend, increases the contact area with the drive wheel, and is more energy-efficient and efficient.

[0037] More specifically, by setting up a reinforced traction cable 21 and a reinforced traction machine 23, the limiting slider 22 at one end of the reinforced traction cable 21 can always be located inside the cableway trough 503 to pull the bottom of the extended cargo car 5. Similarly, the reinforced traction machine 23 at the top of the main car 4 will pull the top of the extended cargo car 5 through the reinforced traction belt 24 and the traction frame 26. When the extended cargo car 5 slides and extends, the limiting slider 22 slides inside the cableway trough 503, and the reinforced traction machine 23 synchronously unwinds the reinforced traction belt 24, thereby reinforcing the connection of the extended cargo car 5 from the top and bottom sides respectively.

[0038] In summary: Before expansion: Under normal conditions, the extended cargo car 5 is housed inside the main car 4. The extended cargo car 5 and the main car 4 overlap to form the same car. When passengers enter the main car 4, the hydraulic lifting mechanism 2 drives the drive end 3 to lift through hydraulic action, thereby driving the main car 4 to rise and fall. During expansion: When the internal space of the car needs to be expanded for transporting goods, passengers leave the car, and the hydraulic call box drives the expansion hydraulic rod 6 to slide the expansion cargo car 5 outward, thereby unfolding the expansion cargo car 5. The main car 4 and the expansion cargo car 5 together form a freight car, thus obtaining a larger freight space. This solves the problem of traditional hydraulic elevators struggling to handle the freight needs of villas. Under the elastic action of the spring box 31, the wheel frame 32 causes the support wheel 33 to extend out of the bottom of the roller groove 504 and contact the bottom inner wall of the expansion cargo car 5, thus rolling. When the roller groove 504 is completely detached from the main car 4, the wheel frame 32 drives the support wheel 33 to rotate towards the position of the hydraulic lifting mechanism 2, causing the wheel frame 32 to... The elevator stops rotating when it contacts the inclined inner wall of the roller groove 504, so that the two support wheels 33 contact the frame or the floor of the car hall to support and fix the extended freight car 5. When a larger freight space is needed, the tilting motor 14 drives one of the tilting rods 12 to rotate through the control shaft 15 and the meshing control gear 16 and tilting gear 13, which in turn drives the tilting plate 8 to rotate inside the tilting hole. The upper and lower elastic rubber plates 10 can provide room for the tilting plate 8 to rotate by means of their own elastic deformation characteristics. Then the elevator handrail 9 rotates into the inside of the transmission box 11, so that the smooth side is located inside the extended freight car 5, thereby preventing the elevator handrail 9 from occupying the internal space of the extended freight car 5 and obstructing freight. After expansion: Remove the shim plate 27 from one side of the main car 4 and insert it into the interior of the extended cargo car 5, so that the hydraulic rod receiving groove 2701 and the traction cable receiving groove 2702 face downwards and cover the extended hydraulic rod 6 and the reinforced traction cable 21. Place the shim plate 27 at the bottom of the extended cargo car 5 to raise the extended cargo car 5 so that the bottom height of the extended cargo car 5 is level with the bottom height of the main car 4, and cover and protect the extended hydraulic rod 6. At the same time, it is stuck between the main car 4 and the extended cargo car 5 to provide horizontal support and prevent the extended cargo car 5 from rolling back.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A household hydraulic elevator, characterized in that, The system includes an aluminum alloy derrick (1), inside which a vertically arranged hydraulic lifting mechanism (2) is fixedly installed. A drive end (3) is driven to one side of the hydraulic lifting mechanism (2), and a main car (4) is fixedly installed to one side of the drive end (3). The hydraulic lifting mechanism (2) is used to drive the drive end (3) to move vertically along the aluminum alloy derrick (1) to lift the main car (4). An extended cargo car (5) is slidably installed inside the main car (4). A horizontally arranged extended hydraulic rod (6) is fixedly installed on the bottom inner wall of the main car (4). The extension direction of the extended hydraulic rod (6) is away from the location of the hydraulic lifting mechanism (2). The bottom side wall of the extended cargo car (5) has an opening that connects with the extended hydraulic rod (6). The hydraulic rod groove (501) corresponding to the position of the extended hydraulic rod (6) is located inside the hydraulic rod groove (501). The telescopic end of the extended hydraulic rod (6) is fixedly connected to the inner wall of the hydraulic rod groove (501). An upper elevator ladder (7) is fixedly installed on the side of the bottom of the extended cargo car (5) away from the drive end (3). A flipping hole is opened inside one side of the extended cargo car (5). A flipping plate (8) is provided inside the flipping hole. An elevator handrail (9) is fixedly installed on one side of the flipping plate (8) inside the extended cargo car (5). A transmission box (11) is fixedly installed on one side of the extended cargo car (5). A flipping control mechanism for controlling the flipping plate (8) to flip is provided inside the transmission box (11).

2. A household hydraulic elevator according to claim 1, characterized in that, The flipping control mechanism includes a flipping motor (14) fixedly installed inside the transmission box (11). The side wall of the extended cargo car (5) is provided with a transmission groove (502) that communicates with the flipping hole. Both sides of the flipping plate (8) are fixedly installed with flipping rods (12). One of the flipping rods (12) is rotatably installed on the inner wall of the flipping hole, and the other flipping rod (12) is rotatably installed on the inner wall of the transmission groove (502). A flipping gear (13) is fixedly sleeved on the flipping rod (12). The output end of the flipping motor (14) drives the installation of a control shaft (15). A control gear (16) that meshes with the flipping gear (13) is fixedly sleeved on the control shaft (15). Elastic rubber plates (10) are fixedly installed on the top and bottom of the flipping plate (8). A C-shaped clearance plate (20) that is compatible with the transmission box (11) is fixedly installed on one side of the main car (4).

3. A household hydraulic elevator according to claim 2, characterized in that, The transmission box (11) is fixedly installed with a vertically arranged limit electric push rod (17). The telescopic end of the limit electric push rod (17) is fixedly installed with a limit slide plate (18). The transmission box (11) is fixedly installed with two limit slide rails (19) respectively distributed on the upper and lower sides of the limit slide plate (18). The limit slide plate (18) is slidably installed inside the two limit slide rails (19).

4. A household hydraulic elevator according to claim 1, characterized in that, The bottom inner wall of the main car (4) is fixedly equipped with a plurality of evenly distributed reinforcing traction cables (21), all of which are horizontally arranged. The bottom side wall of the extended cargo car (5) is provided with a plurality of cableway grooves (503) corresponding to the positions of the reinforcing traction cables (21). One end of each of the plurality of reinforcing traction cables (21) extends into the interior of the plurality of cableway grooves (503) and is fixedly installed with a limit slider (22).

5. A household hydraulic elevator according to claim 4, characterized in that, A raised plate (27) is provided on one side of the main car (4). A hydraulic rod receiving groove (2701) adapted to the extended hydraulic rod (6) and a plurality of traction cable receiving grooves (2702) adapted to the reinforcing traction cable (21) are provided on one side of the raised plate (27).

6. A household hydraulic elevator according to claim 5, characterized in that, Lifting claws (28) are fixedly installed at the four corners on the other side of the main car (4), and four spring claws (29) that are compatible with the lifting claws (28) are fixedly installed on one side of the main car (4).

7. A household hydraulic elevator according to claim 1, characterized in that, A reinforced traction machine (23) is fixedly installed on the top of the main car (4). A reinforced traction belt (24) is wound around the drive end (3) of the reinforced traction machine (23). A pulley (25) is fixedly installed on the top of the main car (4). A traction frame (26) is fixedly installed on the side of the top of the extended cargo car (5) away from the hydraulic lifting mechanism (2). One end of the reinforced traction belt (24) passes through the pulley (25) and is fixedly connected to the top of the traction frame (26).

8. A household hydraulic elevator according to claim 1, characterized in that, The bottom of the extended cargo car (5) has two roller grooves (504). A wheel axle (30) is rotatably installed inside each roller groove (504). A wheel frame (32) is fixedly sleeved on the wheel axle (30). A support wheel (33) is rotatably installed at one end of the wheel frame (32). A coil spring box (31) is fixedly installed inside the roller groove (504). One end of the wheel axle (30) is rotatably connected to the coil spring box (31).

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