A motorized speed ratio device for a three-dimensional garage lifting system and a method for lifting a vehicle using the same

Abstract

The motorized speed ratio device of the three-dimensional garage lifting system and the method for lifting a vehicle using the device include a garage frame and a lifting plate, two sets of driving screws are arranged side by side on the garage frame or on the ground or fixed objects near the garage frame, one end of each driving screw is connected to the output shaft of the driving motor, and a driving nut is installed on each driving screw. When the driving motor drives the driving screw to rotate, each driving nut can move laterally along the length direction of its own driving screw. The advantages of the present invention are: the lifting rope is pulled by the way of using the screw and the nut to drag the pulley, which can effectively improve the lifting speed of the lifting plate, reduce the response time of starting and stopping the lifting plate, and occupy less three-dimensional space, which is more conducive to improving the space utilization rate of the three-dimensional garage.

Description

Technical Field

[0001] The invention relates to a vertical driving device for a lifting plate of a stereo garage, in particular to a motorized speed ratio device of a lifting system of a stereo garage and a method for lifting a vehicle using the device. Background Art

[0002] With the continuous increase in the number of cars in my country, the number of parking spaces in cities is becoming increasingly tight, and ground parking spaces have long been unable to meet the needs of citizens to store cars. In recent years, in order to set up more parking spaces in a limited space, technicians in this field have designed various stereo garages. These stereo garages effectively utilize the stereo space and transport vehicles to parking spaces above or below the ground for storage through lifting plates, which can multiply the number of parking spaces per unit area and alleviate the parking pressure in the city. The lifting plate driving methods in existing stereo garages are generally divided into lifting type and lifting type. The lifting drive device uses a lift at the bottom of the lifting plate to realize the lifting of the lifting plate. This structure has a limited stroke and is only suitable for small stereo garages such as two-story ones; the lifting drive device generally uses a steel cable pulled by a winch to realize the lifting of the lifting plate. The lifting plate has a longer stroke and a wide range of applications. It can be used in various stereo garages such as large and small ones. In the existing lifting device of the lifting platform, a high-power drive motor that meets the maximum lifting mass of the lifting platform needs to be matched, and the drum of the winch is driven by the reducer. The lifting stroke of the lifting platform is the length of the drum to retract and release the steel cable. The speed of the drum is limited after the speed reduction by the reducer, so the lifting speed of the lifting platform is also low, which affects the efficiency of parking and retrieval in the three-dimensional parking garage. And because the diameter of the drum is large, a certain response time is required for starting and stopping, resulting in a relatively long execution time when the parking spaces at various heights are parked. It also affects the efficiency of parking and retrieval in the three-dimensional parking garage. If the lifting speed of the lifting platform needs to be increased, an expensive high-speed lifting drive motor needs to be set, which will greatly increase the construction and maintenance costs of the three-dimensional parking garage. In addition, the three-dimensional space occupied by the hoisting equipment is also relatively large. In the three-dimensional parking garage, a separate layer of space is usually required to be set up for the placement of the hoisting equipment. When building a three-dimensional parking garage in an area with limited space such as an underground garage or inside a building, it will significantly affect the space utilization rate of the three-dimensional parking garage. Summary of the invention

[0003] The purpose of the present invention is to provide a motorized speed ratio device for a three-dimensional garage lifting system and a method for lifting a vehicle using the device. It can effectively increase the lifting speed of the lifting plate, reduce the response time of starting and stopping the lifting plate, and occupies less three-dimensional space, which is more conducive to improving the space utilization rate of the three-dimensional garage.

[0004] To achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: it includes a garage frame and a lifting plate, two groups of driving screws are arranged side by side on the garage frame or on the ground or fixed objects near the garage frame, one end of each driving screw is connected to the output shaft of the driving motor, and a driving nut is installed on each driving screw. When the driving motor drives the driving screw to rotate, each driving nut can move laterally along the length direction of its own driving screw. A rotating shaft is arranged on each driving nut, and a driving pulley is installed on the rotating shaft. The driving pulley can rotate around the rotating shaft, and a central pulley is arranged between the two groups of driving screws. The first fixed pulley, the second fixed pulley, the third fixed pulley and the fourth fixed pulley are installed on the upper part of the garage frame, the lifting plate is connected to one end of the first sling, the second sling, the third sling and the fourth sling respectively, and the other ends of the first sling, the second sling, the third sling and the fourth sling are connected to the fixed point after passing through the first fixed pulley, the second fixed pulley, the third fixed pulley and the fourth fixed pulley respectively and passing through a driving pulley, a middle pulley and another driving pulley together, wherein each sling is passed through from the same side of the two driving pulleys, and the middle pulley is located on the other side of each sling. The middle pulley is a fixed pulley, and the middle pulley is fixedly installed on the garage frame or the ground or a fixed object near the garage frame. A central guide rail is arranged between the two groups of driving screw rods, and the central guide rail is arranged along the length direction of the driving screw rod. The central pulley cooperates with the central guide rail through a slider, and the central pulley can move along the length direction of the central guide rail. A U-shaped anti-slip frame is arranged on the shafts on both sides of the central pulley. The first sling, the second sling, the third sling and the fourth sling all pass through between the central pulley and the U-shaped anti-slip frame. A positioning pin hole is provided on the central guide rail, and an electrically controlled positioning pin is installed on the slider. When the two driving pulleys are simultaneously located at one end of each driving screw rod, the electrically controlled positioning pin can be inserted into the positioning pin hole.

[0005] The method for lifting a vehicle using the motorized speed ratio device of the three-dimensional garage lifting system of the present invention: the two driving pulleys move simultaneously to jointly realize the lifting and lowering of the lifting plate. Assuming that the total number of floors of the garage is N, the number of floors to be moved is M, and the maximum stroke of each driving pulley is L, then each time the lifting plate is lifted or lowered, the distance L1 that each driving pulley moves simultaneously is obtained according to the following formula:

[0006] L1= .

[0007] The method for lifting a vehicle using the motorized speed ratio device of the three-dimensional garage lifting system of the present invention is as follows: the total number of floors of the garage is divided into two areas, a high-rise area and a low-rise area, the total number of floors of the garage is N, the number of floors to be moved is M, the maximum stroke of each driving pulley is L, wherein the total number of floors P of the low-rise area is less than half of the total number of floors N of the garage, when storing or retrieving vehicles or placing vehicle loading plates in the high-rise area of ​​the garage and when retrieving vehicles or placing vehicle loading plates in the low-rise area, an electrically controlled positioning pin is inserted into a positioning pin hole to lock the position of a center pulley, and at this time, the two driving pulleys move simultaneously to jointly realize the lifting and lowering of the lifting plate; when placing a vehicle or a vehicle loading plate with a vehicle parked in the low-rise area of ​​the garage, the electrically controlled positioning pin is pulled out of the positioning pin hole, and the center pulley can slide along the center guide rail, and at this time, the two driving pulleys move simultaneously to jointly realize the lifting and lowering of the lifting plate in the low-rise area.

[0008] The advantages of the present invention are: the sling is pulled by a screw rod and a nut dragging a pulley, which can effectively increase the lifting speed of the lifting plate, reduce the response time of starting and stopping the lifting plate, and occupies less three-dimensional space, which is more conducive to improving the space utilization rate of the three-dimensional parking garage. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the basic structure of the present invention, in which the driving pulley is a fixed pulley and the lifting plate is located at the bottom extreme position of the garage;

[0010] Figure 2 yes Figure 1 A diagram showing the use state of the lifting plate in the structure shown in FIG. 1 when the lifting plate is raised to the top limit position;

[0011] Figure 3 It is a schematic diagram of the structure in which the middle pulley of the present invention can move along the middle guide rail; the lifting plate shown in the figure is located at the extreme position at the bottom of the garage;

[0012] Figure 4 yes Figure 3 A diagram showing the structure in use with the middle pulley locked and the lifting plate raised to the top limit position;

[0013] Figure 5 yes Figure 3 The middle pulley in the structure shown moves together with the driving pulley, and the lifting plate is raised to the middle of the garage;

[0014] Figure 6 It is a schematic diagram of the structure of the connecting component between the central pulley and the central guide rail of the present invention. DETAILED DESCRIPTION

[0015] The motorized speed ratio device of the three-dimensional garage lifting system of the present invention comprises a garage frame and a lifting plate 1. Two groups of driving screws 4 are arranged side by side on the garage frame or on the ground or fixed objects near the garage frame. One end of each driving screw 4 is connected to the output shaft of a driving motor 5. A driving nut 6 is installed on each driving screw 4. When the driving motor 5 drives the driving screw 4 to rotate, each driving nut 6 can move laterally along the length direction of its own driving screw 4. A rotating shaft 7 is arranged on each driving nut 6. A driving pulley 2 is installed on the rotating shaft 7. The driving pulley 2 can rotate around the rotating shaft 7. A middle pulley 8 is arranged between the two groups of driving screws 4. A first driving nut 6 is installed on the upper portion of the garage frame. A fixed pulley 11, a second fixed pulley 12, a third fixed pulley 13 and a fourth fixed pulley 14, the lifting plate 1 is connected to one end of the first sling 21, the second sling 22, the third sling 23 and the fourth sling 24 respectively, the other ends of the first sling 21, the second sling 22, the third sling 23 and the fourth sling 24 are respectively bypassed around the first fixed pulley 11, the second fixed pulley 12, the third fixed pulley 13 and the fourth fixed pulley 14 and bypass a driving pulley 2, a middle pulley 8 and another driving pulley 2 together and then connected to the fixed point 3, wherein each sling is bypassed from the same side of the two driving pulleys 2, and the middle pulley 8 is located on the other side of each sling. The lifting plate 1 of the present invention can be used to realize the lifting and lowering of the vehicle loading plate in each three-dimensional parking space. After the vehicle loading plate is lifted to the target position, it is moved into the parking space through the lateral movement device of the three-dimensional garage itself. For a three-dimensional garage without a vehicle loading plate, the lifting plate 1 of the present invention can also be directly used to lift the vehicle. After the vehicle is lifted to the target parking space height, the driver can drive into the parking space autonomously. The fixed point can be a fixing on the garage frame, or a fixing seat set on the ground or fixed object near the garage frame. The first sling 21, the second sling 22, the third sling 23 and the fourth sling 24 can all be connected to the fixed point 3, or they can be combined into one steel cable and then connected to the fixed point 3. When the first sling 21, the second sling 22, the third sling 23 and the fourth sling 24 are simultaneously bypassed by the driving pulley 2, the driving pulley 2 can use a four-groove pulley. When the first sling 21, the second sling 22, the third sling 23 and the fourth sling 24 are combined into one sling to bypass the driving pulley 2, the driving pulley 2 can use a single-groove pulley. The driving screw rod 4 of the present invention can be fixedly installed on the garage frame, or on the ground or fixed objects near the garage frame, and the driving pulley 2 on the driving nut 6 is used to pull the slings. The drawings of the present invention only illustrate the sling arrangement structure between the driving structure and the lifting plate, and the actual installation position of the driving structure can be flexibly selected by those skilled in the art according to actual conditions. The fixed pulleys for guiding and reversing the slings in the present invention can be set by those skilled in the art according to the actual installation position of the driving screw rod 4 and the actual structure of the garage frame. They are not necessary structures, so they are not reflected in the drawings of the present invention.When the driving screw 4 is installed on the top of the garage frame, the present invention basically does not need to set a fixed pulley for reversing and guiding, and the used sling has the shortest length, the lowest cost and the smallest resistance. Therefore, except for a few areas with limited space or terrain, it is generally preferred to install the driving screw 4 on the top of the garage frame. The driving nut 6 of the present invention is always subject to the traction force brought by the weight of the lifting plate 1, so it will not rotate with the driving screw 4. In order to enhance its stability during lateral movement, the present invention can also set a guide rail or other guide members on one side of the driving nut 6 along its lateral movement direction. The present invention uses a screw and a nut to drag the pulley to pull the sling, which can reduce the response time of starting and stopping the lifting plate, and occupies less three-dimensional space, which is more conducive to improving the space utilization rate of the three-dimensional garage. When the present invention is used, such as. Figure 2 As shown, when the middle pulley 8 is a fixed pulley and the stroke of the driving pulley 2 is L, the lifting plate 1 can be driven to complete a lifting stroke of 4 times L, thereby effectively improving the lifting speed of the lifting plate 1 and shortening the waiting time when storing and retrieving vehicles in the three-dimensional parking garage. The middle pulley 8 is fixedly mounted on the garage frame or on the ground or fixed objects near the garage frame. The lifting and lowering of the lifting plate 1 is jointly undertaken by the two drive motors 5, which can halve the power required by the drive motors, which is beneficial to reducing the cost of the garage itself, and the two drive motors do not need to be strictly synchronized, which reduces the requirements for the control system and has a relatively lower failure rate.

[0016] In order to realize the maneuverable change of the lifting speed ratio of the lifting platform 1 when storing vehicles of different weights, the present invention may provide a center guide rail 9 between the two groups of driving screws 4. The center guide rail 9 is provided along the length direction of the driving screw 4. The center pulley 8 cooperates with the center guide rail 9 through a slider 100. The center pulley 8 can move along the length direction of the center guide rail 9. U-shaped anti-slip frames 10 are provided on the shafts on both sides of the center pulley 8. The first sling 21, the second sling 22, the third sling 23 and the fourth sling 24 all pass through between the center pulley 8 and the U-shaped anti-slip frame 10. A positioning pin hole 101 is provided on the center guide rail 9. An electrically controlled positioning pin 102 is installed on the slider 100. When the two driving pulleys 2 are simultaneously located at one end of their respective driving screws 4, the electrically controlled positioning pin 102 can be inserted into the positioning pin hole 101. When the electrically controlled positioning pin 102 is inserted into the positioning pin hole 101 to lock the position of the center pulley 8, as shown in FIG. Figure 4 As shown, the middle pulley 8 is used as a fixed pulley. At this time, the lifting stroke of the lifting plate 1 is 4 times that of the driving pulley 2, which is suitable for storing and retrieving general household vehicles or transporting vehicle carriers; after the electric control positioning pin 102 is pulled out from the positioning pin hole 101, as shown Figure 5As shown, the middle pulley 8 can move with the driving pulley 2, and the lifting stroke of the lifting platform 1 is twice that of the driving pulley 2. Compared with when the middle pulley 8 is locked, this lifting method reduces the speed of the lifting platform 1 and the stroke of the lifting platform 1, and the stability during lifting and starting and stopping is improved. It is suitable for lifting heavy vehicles such as large SUVs. These vehicles need to be stored in the lower area of ​​the stereo garage when they are stored. When building a stereo garage, a special parking space for heavy vehicles can be set in the lower part of the garage.

[0017] The method for lifting a vehicle using the motorized speed ratio device of the three-dimensional garage lifting system of the present invention is as follows: when the middle pulley 8 is a fixed pulley, the two driving pulleys 2 move simultaneously to jointly realize the lifting and lowering of the lifting plate 1. Assuming that the total number of floors of the garage is N, the number of floors to be moved is M, and the maximum stroke of each driving pulley 2 is L, then each time the lifting plate 1 is lifted or lowered, the distance L1 that each driving pulley 2 moves simultaneously is obtained according to the following formula:

[0018] L1= .

[0019] This method allows the lifting platform 1 to complete a lifting stroke that is 4 times the maximum stroke L of the driving pulley 2, thereby effectively improving the lifting speed of the lifting platform 1 and shortening the waiting time for storing and retrieving vehicles in the three-dimensional garage. The lifting of the lifting platform 1 is jointly undertaken by the two driving motors 5, which can halve the power required by the driving motors, which is beneficial to reducing the cost of the garage itself, and the two driving motors do not need to be strictly synchronized, which reduces the requirements for the control system and has a relatively lower failure rate.

[0020] When the middle pulley 8 of the present invention can be moved and locked, the method for lifting a vehicle using the motorized speed ratio device of the three-dimensional garage lifting system of the present invention can divide the total number of floors of the garage into two areas, namely, the high-rise area and the low-rise area. Assume that the total number of floors of the garage is N, the number of floors to be moved is M, and the maximum stroke of each driving pulley 2 is L, wherein the total number of floors P in the low-rise area is less than half of the total number of floors N of the garage. When storing or retrieving vehicles or placing vehicle loading plates in the high-rise area of ​​the garage and when retrieving vehicles or placing vehicle loading plates in the low-rise area, the electrically controlled positioning pin 102 is inserted into the positioning pin hole 101 to lock the position of the middle pulley 8. At this time, the two driving pulleys 2 move simultaneously to jointly realize the lifting and lowering of the lifting plate 1.

[0021] When placing a vehicle or parking a vehicle on the loading plate in the lower area of ​​the garage, the electric control positioning pin 102 is pulled out from the positioning pin hole 101, and the middle pulley 8 can slide along the middle guide rail 9. At this time, the two driving pulleys 2 move simultaneously to jointly realize the lifting and lowering of the lifting plate 1 in the lower area. Compared with the method of locking the middle pulley 8, this lifting method reduces the speed of the lifting plate 1 and the stroke of the lifting plate 1, and improves the stability during lifting and starting and stopping. It is suitable for lifting heavy vehicles such as large SUVs. These vehicles need to be stored in the lower area of ​​the three-dimensional garage when they are stored. When building a three-dimensional garage, a special parking space for heavy vehicles can be set in the lower part of the garage.

[0022] The specific implementation modes of the present invention are described as follows:

[0023] The travel of the power pulley 2 of a certain three-dimensional parking garage is 5 meters, the height of a single-layer parking space is 2.5 meters, and the lifting height that the lifting plate 1 can achieve is 20 meters, that is, it can serve a 9-layer three-dimensional parking garage with a total height of 20 meters. When the 1st-layer parking space is used to store or retrieve vehicles or to take or place vehicle loading plates, the lifting plate 1 is lowered to the ground without lifting; when the 2nd-9th-layer parking spaces are used to store or retrieve vehicles or to take or place vehicle loading plates, the two driving pulleys 2 move simultaneously to jointly realize the lifting and lowering of the lifting plate 1. For example, when the 2nd-layer parking space is used to store or retrieve vehicles or to take or place vehicle loading plates, the two driving motors 5 simultaneously drive the driving pulleys 2 to move 625mm, which can enable the lifting plate 1 to achieve a displacement of 4 times, that is, 2.5 meters. When a vehicle is stored or retrieved from a parking space on the third floor or when a loading plate is placed or retrieved, the two drive motors 5 simultaneously drive the drive pulley 2 to move 1250 mm, which can enable the lifting plate 1 to achieve a displacement of 4 times, that is, 5 meters... Similarly, when the two drive motors 5 simultaneously drive the drive pulley 2 to move 5 meters, the lifting plate 1 can achieve a maximum travel of 20 meters. The above drive method can greatly increase the lifting speed of the lifting plate 1, reduce the response time, and the power of the drive motor 5 can be halved, which is conducive to improving the efficiency of parking and retrieval and reducing the cost of the garage.

[0024] When storing a vehicle with a large dead weight, such as a large SUV, in the above-mentioned garage, parking spaces on the 1st to 5th floors are preferably selected for placement. At this time, if the driving pulley 2 is configured to be able to move laterally and be locked, when placing the vehicle in the area of ​​the 2nd to 5th floors, the electrically controlled positioning pin 102 is pulled out of the positioning pin hole 101, and the middle pulley 8 can slide along the middle guide rail 9 following the driving pulley 2. At this time, the two driving pulleys 2 move simultaneously to jointly realize the lifting and lowering of the lifting platform 1 in the area of ​​the 2nd to 5th floors.

Claims

1. A motorized speed ratio device for a three-dimensional carport lifting system, comprising a carport frame and a lifting plate (1), characterized in that: Two groups of driving screw rods (4) are arranged side by side on the garage frame or on the ground or fixed objects near the garage frame. One end of each driving screw rod (4) is connected to the output shaft of a driving motor (5). Each driving screw rod (4) is equipped with a driving nut (6). When the driving motor (5) drives the driving screw rod (4) to rotate, each driving nut (6) can move laterally along the length direction of its own driving screw rod (4). Each driving nut (6) is provided with a rotating shaft (7). A driving pulley (2) is installed on the rotating shaft (7). The driving pulley (2) can rotate around the rotating shaft (7). A middle pulley (8) is arranged between the two groups of driving screw rods (4). A first fixed pulley (11), a second fixed pulley (12), and a third fixed pulley (13) are installed on the upper part of the garage frame. The lifting plate (1) is connected to one end of the first sling (21), the second sling (22), the third sling (23) and the fourth sling (24), respectively; the other ends of the first sling (21), the second sling (22), the third sling (23) and the fourth sling (24) respectively pass around the first fixed pulley (11), the second fixed pulley (12), the third fixed pulley (13) and the fourth fixed pulley (14) and pass around a driving pulley (2), a middle pulley (8) and another driving pulley (2) and then are connected to the fixed point (3); wherein each sling passes around the same side of the two driving pulleys (2), and the middle pulley (8) is located on the other side of each sling; A central guide rail (9) is arranged between the two groups of driving screw rods (4), and the central guide rail (9) is arranged along the length direction of the driving screw rod (4). The central pulley (8) cooperates with the central guide rail (9) through a slider (100), and the central pulley (8) can move along the length direction of the central guide rail (9). U-shaped anti-slip frames (10) are arranged on the shafts on both sides of the central pulley (8). The first sling (21), the second sling (22), the third sling (23) and the fourth sling (24) all pass between the central pulley (8) and the U-shaped anti-slip frame (10). A positioning pin hole (101) is provided on the central guide rail (9), and an electric control positioning pin (102) is installed on the slider (100). When the two driving pulleys (2) are simultaneously located at one end of each driving screw rod (4), the electric control positioning pin (102) can be inserted into the positioning pin hole (101).

2. A method for lifting a vehicle using the motorized speed ratio device of the three-dimensional carport lifting system as claimed in claim 1, characterized in that: The two driving pulleys (2) move simultaneously to realize the lifting and lowering of the lifting plate (1). Assuming that the total number of floors in the garage is N, the number of floors to be moved is M, and the maximum stroke of each driving pulley (2) is L, then each time the lifting plate (1) is raised or lowered, the distance L1 that each driving pulley (2) moves simultaneously is obtained according to the following formula:

3. A method for lifting a vehicle using the motorized speed ratio device of the three-dimensional carport lifting system as claimed in claim 1, characterized in that: The total number of floors of the garage is divided into two areas, a high-rise area and a low-rise area. The total number of floors of the garage is N, the number of floors to be moved is M, and the maximum stroke of each driving pulley (2) is L. The total number of floors of the low-rise area P is less than half of the total number of floors N of the garage. When a vehicle is stored or a vehicle loading plate is taken in and placed in the high-rise area of ​​the garage, and when a vehicle is taken in or a vehicle loading plate is taken in and placed in the low-rise area, an electric control positioning pin (102) is inserted into a positioning pin hole (101) to lock the position of the middle pulley (8). At this time, the two driving pulleys (2) move simultaneously to realize the lifting and lowering of the lifting plate (1); when a vehicle is placed or a vehicle loading plate with a vehicle is parked in the low-rise area of ​​the garage, the electric control positioning pin (102) is pulled out from the positioning pin hole (101), and the middle pulley (8) can slide along the middle guide rail (9). At this time, the two driving pulleys (2) move simultaneously to realize the lifting and lowering of the lifting plate (1) in the low-rise area.

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