Stereoscopic parking garage

Abstract

The present invention discloses a three-dimensional parking garage, including a support frame, which includes four support columns and an upper frame assembly. The upper frame assembly is a rectangular frame structure. There are four support columns, which are all vertically arranged and distributed in a rectangular shape, and the upper frame assembly is fixedly arranged on the four support columns. The main points are: it also includes a bearing platform, a lifting mechanism, a lifting drive mechanism, a walking mechanism and a steering mechanism. The lifting mechanism is arranged on the support frame, and the lifting drive mechanism drives the lifting mechanism to move the bearing platform up and down. The steering mechanism is arranged on the support frame, and the walking mechanism is arranged on the support frame, the supporting frame is driven by the walking mechanism to move, and the steering mechanism controls the movement trajectory of the walking mechanism, so as to adjust the supporting frame to be perpendicular or parallel to the road.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical parking devices, in particular to a three-dimensional parking garage. Background Art

[0002] With the rapid development of my country's automobile industry, the continuous improvement of municipal road construction, the significant growth of residents' income level, and the surge in private car consumption capacity, my country has entered the era of private car consumption. Owning a car is no longer a luxury for many Chinese families. Cars have entered ordinary people's homes on a large scale. In the streets and alleys, colorful private cars have become a beautiful landscape in the city. With the increasing number of household cars, the problems it brings are gradually highlighted. The first is the increasingly tense parking space problem: due to site and space limitations, insufficient parking spaces have become a common problem in cities, and parking difficulties have become a social hot spot problem, especially in residential areas. With the increasing number of cars in the community, parking spaces are increasingly unable to meet the parking needs of car owners. Some vehicles can only be forced to park in the greening of the community or on the roads near the community, which not only destroys the greening of the community, but also causes road congestion. The second is the parking technology problem of motor vehicle drivers. Reversing into the garage is a headache for many people. Sometimes it will affect the passage of other vehicles because of the inability to park in the parking space, causing artificial traffic jams. In order to solve the parking problem, a large number of various stereo garages have emerged. At present, there are usually two ways to park a car in a stereo garage. The first is to complete the vertical lifting and lowering first, and then complete the horizontal operation; the second is to complete the horizontal operation first, and then complete the vertical lifting and lowering. Both technologies are divided into two independent actions according to horizontal and vertical transportation, and the external shape of the entire structure is fixed. Moreover, although these stereo parking spaces have alleviated the problem of tight parking spaces, due to the problems of the equipment vehicle bearing platform and the entire structure, it is more difficult to reverse into the garage, which is simply a nightmare for many drivers. Some stereo garages also need to move other vehicles when parking or picking up cars, which not only delays time and reduces the utilization rate of parking spaces, but also is not conducive to energy saving. Summary of the invention

[0003] The purpose of the present invention is to provide a three-dimensional parking garage with a simple structure and convenient parking.

[0004] The basic technical scheme for achieving the purpose of the present invention is: a three-dimensional parking garage, including a support frame, the support frame includes 4 support columns and an upper frame assembly. The upper frame assembly is a rectangular frame structure. There are 4 support columns, all of which are vertically arranged and distributed in a rectangular shape, and the upper frame assembly is fixedly arranged on the 4 support columns. Its structural characteristics are: it also includes a bearing platform, a lifting mechanism, a lifting drive mechanism, a walking mechanism and a steering mechanism. The lifting mechanism is arranged on the support frame, and the lifting drive mechanism drives the lifting mechanism to move the bearing platform up and down. The steering mechanism is arranged on the support frame, and the walking mechanism is arranged on the support frame. The supporting frame is driven by the walking mechanism to move, and the movement trajectory of the walking mechanism is controlled by the steering mechanism, so as to adjust the supporting frame to be perpendicular or parallel to the road, that is, to adjust the bearing platform to be perpendicular or parallel to the road.

[0005] The technical solution based on the above basic technical solution is: the upper surface of the load-bearing platform adopts a corrugated plate. A group of column-holding wheels is respectively provided on the left and right sides of the rear of the load-bearing platform. Each group has two column-holding wheels, which are rotatably arranged on the load-bearing platform, and their rotation axes are both horizontally arranged along the left and right directions. The group of column-holding wheels located on the left side are respectively in rolling contact with the front side and rear side of the support column located at the left rear. The group of column-holding wheels located on the right side are respectively in rolling contact with the front side and rear side of the support column located at the right rear.

[0006] The technical solution based on the above-mentioned corresponding technical solutions is: the lifting mechanism includes 4 winding drums, and the winding drums are provided with steel wire ropes. The other end of the steel wire rope is fixedly set on the bearing platform, and the 4 winding drums are distributed at the four vertices of a rectangle. The bearing platform is driven up and down by retracting and releasing the steel wire ropes through the winding drums.

[0007] The technical solution based on the above-mentioned corresponding technical solutions is: the lifting drive mechanism includes a driving motor, a reducer, a first driving sprocket, a second driving sprocket, a first driven sprocket, a second driven sprocket, a first driven shaft, a first chain, a second driven shaft and a second chain. The reducer adopts a worm gear reducer.

[0008] The driving motor is fixedly arranged on the reducer, and its motor shaft is drivingly connected with the input shaft of the reducer. The reducer is fixedly arranged on the upper frame assembly, and the first driving sprocket and the second driving sprocket are coaxially driven and arranged on the output shaft of the reducer in sequence from front to back.

[0009] The first driven shaft is rotatably arranged on the left part of the upper frame assembly through a bearing and a bearing seat, a winding drum of the lifting mechanism is coaxially fixedly arranged on the front part of the first driven shaft, and a winding drum is coaxially fixedly arranged on the rear part of the first driven shaft. The first driven sprocket is coaxially transmission-arranged on the rear end of the first driven shaft.

[0010] The second driven shaft is rotatably arranged on the right part of the upper frame assembly through a bearing and a bearing seat, a winding drum of the lifting mechanism is coaxially fixedly arranged on the front part of the second driven shaft, and a winding drum is coaxially fixedly arranged on the rear part of the second driven shaft. The second driven sprocket is coaxially arranged on the rear end of the second driven shaft.

[0011] The first chain is arranged around the first driving sprocket and the first driven sprocket, and the second chain is arranged around the second driving sprocket and the second driven sprocket.

[0012] The technical solution based on the above-mentioned corresponding technical solutions is: further comprising a platform support device. The platform support device is arranged on the support frame and is used to support the load-bearing platform.

[0013] The technical solution based on the above-mentioned corresponding technical solutions is: there are 4 sets of platform support devices, and the structures of the 4 sets of platform support devices are the same, and all include a support mounting seat, a platform support block, a platform support shaft, an unlocking push rod, a reset push rod, a locking rod and a tension spring. The 4 sets of platform support devices are respectively fixedly arranged on the left lower front and rear of the upper frame assembly and the right lower front and rear of the upper frame assembly.

[0014] The platform support block is rotatably arranged in the support mounting seat by its outer end, and its rotation axis is arranged horizontally along the front-back direction. The inner end of the platform support block extends inwardly outside the support mounting seat. The platform support shaft is arranged horizontally in the front-back direction in the support mounting seat, located at the lower side of the inner end of the platform support block, and supports the platform support block from below, so that the upper surface of the platform support block is in a horizontal state. The unlocking push rod is rotatably arranged in the support mounting seat, and its inner end extends inwardly outside the support mounting seat. A locking notch is arranged on the upper part of the unlocking push rod. The outer end of the unlocking push rod is transmission-connected with the outer end of the platform support block through a first connecting rod. The locking rod is slidably arranged in the support mounting seat along the up-down direction, and the axis of the locking rod is parallel to the rotation axis of the unlocking push rod and is located above the rotation axis of the unlocking push rod. The tension spring is arranged between the rotation axis of the unlocking push rod and the locking rod, and the locking rod is in sliding contact with the upper part of the unlocking push rod. The reset push rod is rotatably arranged in the support mounting seat, and its rotation axis is arranged horizontally along the front-back direction. The outer end of the reset push rod is transmission-connected with the locking rod through the second connecting rod, and the locking rod is driven to move up and down when the front end of the reset push rod swings up and down.

[0015] The technical solution based on the above-mentioned corresponding technical solutions is: a hanging plate protruding outward is respectively provided on the left and right sides of the front part and the left and right sides of the rear part of the load-bearing platform, which respectively corresponds to the platform support blocks of the corresponding platform support device.

[0016] The technical solution based on the above corresponding technical solutions is: the walking mechanism includes an active walking mechanism and a passive walking mechanism. There are two active walking mechanisms, and the two active walking mechanisms have the same structure, both including a first mounting seat, a walking motor, a walking reduction box, a first walking sprocket, a second walking sprocket, a walking chain and an active walking wheel.

[0017] The travel motor is fixedly arranged on the first mounting seat, and the motor shaft of the travel motor is connected to the input shaft of the travel reduction box. The travel reduction box is fixedly arranged on the first mounting seat, and the first travel sprocket is arranged on the output shaft of the travel reduction box. The output shaft of the travel reduction box is arranged horizontally in the left and right directions. The second travel sprocket and the active travel wheel are arranged on the first mounting seat for coaxial transmission and rotation, and the rotation axes of the second travel sprocket and the active travel wheel are arranged parallel to the axis of the output shaft of the travel reduction box. The travel chain is arranged around the first travel sprocket and the second travel sprocket.

[0018] The passive walking mechanism comprises a driven wheel and a universal wheel assembly. The driven wheel is rotatably arranged on the lower end of a supporting column located at the left rear, and its rotation axis is horizontally arranged in the left and right directions.

[0019] The universal wheel assembly includes a connecting seat, a second driven wheel and a limit wheel. The connecting seat is rotatably connected to the lower end of the supporting column located at the right rear, and its rotation axis is vertically arranged along the up-down direction. There are two second driven wheels, which are rotatably arranged on the connecting seat in sequence from the front to the back, and their rotation axes are horizontally arranged along the left-right direction.

[0020] The technical solution based on the above corresponding technical solutions is: there are two steering mechanisms 7, and the two steering mechanisms are respectively fixedly arranged on the lower ends of the two supporting columns located at the front. Two active walking mechanisms are respectively arranged on a corresponding one of the steering mechanisms.

[0021] The two steering mechanisms have the same structure, and both include a second mounting seat, a steering motor and a worm gear. The second mounting seat is fixedly arranged on the lower end of the support column. The first mounting seat of the active walking mechanism is rotatably connected to the second mounting seat. The steering motor is fixedly arranged in the second mounting seat, the turbine of the worm gear is fixedly arranged on the first mounting seat and located in the second mounting seat, and the worm gear of the worm gear is arranged on the motor shaft of the steering motor.

[0022] The technical solution based on the above-mentioned corresponding technical solutions is: it also includes a guiding mechanism. The guiding mechanism includes a limiting guide rail, a turning guide rail and a limiting plate. The limiting guide rail and the turning guide rail are arranged in parallel with each other, and the limiting guide rail and the turning guide rail are arranged in sequence from right to left. The turning guide rail is a U-shaped guide rail with an opening facing upward. The limiting guide rail is a guide rail with an inverted T-shaped groove. The length of the turning guide rail is less than the length of the limiting guide rail, and the rear end of the turning guide rail is flush with the rear end of the limiting guide rail.

[0023] The universal wheel assembly also includes two limiting wheels, which are rotatably arranged on the left and right sides of the connecting seat respectively and are coaxially arranged.

[0024] The two second driven wheels of the universal wheel assembly of the passive walking mechanism are rollingly arranged in the steering guide rail, and the two limiting wheels are rollingly arranged in the grooves on both sides of the inverted T-shaped groove. The limiting plate is fixedly arranged on the lower end of the supporting column on which the universal wheel assembly is installed, and is vertically arranged in the front-rear direction.

[0025] The present invention has the following beneficial effects: (1) The three-dimensional parking garage of the present invention has a simple structure, which subverts the traditional parking method of the three-dimensional parking garage. The driver only needs to drive the vehicle onto the bearing platform of the three-dimensional parking garage, which greatly reduces the difficulty of parking. The three-dimensional parking garage can complete the reverse parking, which brings good news to the majority of drivers.

[0026] (2) The three-dimensional parking garage of the present invention is not affected by other parked vehicles when parking or picking up a car, nor does it affect other parked vehicles, thus saving time and greatly improving the utilization rate of parking spaces. Moreover, when in use, only the three-dimensional parking garage needs to be operated, without involving other three-dimensional parking garages, which is beneficial to energy saving.

[0027] (3) One multi-story parking garage of the present invention can correspond to one ground parking space, and there is no need to leave a space vacant for scheduling like in some multi-story parking garages. The number of ground parking spaces can be doubled, and the utilization rate is greatly improved.

[0028] (4) The upper surface of the load-bearing platform of the three-dimensional parking garage of the present invention adopts a corrugated plate, which makes it difficult for the vehicle to slide after being parked. A set of column wheels is provided on the left and right sides of the rear of the load-bearing platform, so that the load-bearing platform runs more smoothly when rising and falling, and is safer and more reliable to use.

[0029] (5) The three-dimensional parking garage of the present invention is provided with a platform support device, which supports the load-bearing platform, has good stability, and can protect the lifting mechanism and the lifting drive mechanism, thereby increasing the service life of the equipment.

[0030] (6) The platform support device of the three-dimensional parking garage of the present invention is provided with an unlocking push rod and a reset push rod, through which the state of the platform support block can be adjusted, and the structure is simple, reliable and safe. The platform can be unlocked only after lifting a short distance upwards, and the load-bearing platform can be lowered. If the wire rope breaks before unlocking, the load-bearing platform can still be restricted on the platform support device, thereby ensuring the safety of the vehicle and the vehicle below.

[0031] (7) The walking mechanism of the multi-story parking garage of the present invention includes an active walking mechanism and a passive walking mechanism. The movement trajectory of the active walking mechanism is controlled by the steering mechanism to change the direction of the entire supporting frame. After the driven wheel is separated from the steering guide rail, it can run along the trajectory of the active walking mechanism. The universal wheel assembly of the passive walking mechanism is always located in the limiting guide rail, which is convenient for the supporting frame to return to the original path and reset, so that the multi-story parking space can be used to complete the reverse parking, with accurate positioning and good reliability.

[0032] (8) The steering mechanism of the multi-story parking garage of the present invention adopts a worm gear structure, which can accurately locate the position and is conducive to rapid and accurate resetting.

[0033] (9) The three-dimensional parking garage of the present invention has two active walking mechanisms, which can adapt to the differential speed during turning and has good reliability.

[0034] (10) The reducer of the lifting drive mechanism of the multi-story parking garage of the present invention adopts a worm gear reducer with an anti-locking function. On the one hand, it can protect the motor, and on the other hand, it can suspend the load-bearing platform through a wire rope to avoid the load-bearing platform from being unbalanced due to damage to a platform support device, thereby further improving the safety of use.

[0035] (11) The passive walking mechanism of the multi-story parking garage of the present invention is provided with two second driven wheels parallel to each other, which have good support and are more stable during turning. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the three-dimensional parking garage of the present invention.

[0037] Figure 2 for Figure 1 Rear view schematic diagram of .

[0038] Figure 3 for Figure 1 Schematic diagram of the left side.

[0039] Figure 4 for Figure 1 Schematic diagram of the right side.

[0040] Figure 5 for Figure 1 Schematic top view of .

[0041] Figure 6 For Figure 1 Schematic diagram when viewed from the upper right front.

[0042] Figure 7 For Figure 1 Schematic diagram when viewed from the upper left rear.

[0043] Figure 8 For Figure 1A schematic diagram of the structure of the lifting mechanism after removing the upper frame assembly when viewed from the upper right front side.

[0044] Fig. 9 For Figure 1 A structural schematic diagram of the lifting mechanism after removing the upper frame assembly when viewed from the upper left front.

[0045] Fig.10 For Figure 1 Schematic diagram of the structure of the support frame when viewed from the upper right rear.

[0046] Fig.11 It is a schematic diagram of the structure of the guide wheel assembly of the walking mechanism.

[0047] Fig.12 It is a structural diagram of the walking mechanism.

[0048] Fig.13 It is a structural schematic diagram of the platform support device.

[0049] Fig.14 This is a schematic diagram of the structure of the platform support device after removing the support mounting base.

[0050] The reference numerals in the accompanying drawings are:

[0051] Support frame 1, support column 11,

[0052] Upper frame assembly 12, front crossbeam 12-1, rear crossbeam 12-2, installation notch 12-21, left crossbeam 12-3, right crossbeam 12-4, left front connecting seat 12-5, left rear connecting seat 12-6, right front connecting seat 12-7, right rear connecting seat 12-8, left front reinforcing seat 12-9, right front reinforcing seat 12-10,

[0053] Carrying platform 2, hanging plate 21, column wheel 22,

[0054] Lifting mechanism 3, winding drum 31, wire rope 31-1,

[0055] Lifting drive mechanism 4, drive motor 41, reducer 42, first driving sprocket 43, second driving sprocket 44, first driven sprocket 45, second driven sprocket 46, first driven shaft 47, second driven shaft 48,

[0056] Platform support device 5, support mounting seat 5-1, platform support block 5-2, platform support shaft 5-3, unlocking push rod 5-4, locking notch 5-41, first connecting rod 5-42, reset push rod 5-5, second connecting rod 5-51, locking rod 5-6, tension spring 5-7,

[0057] Walking mechanism 6, active walking mechanism 6a, first mounting seat 6a-1, walking motor 6a-2, walking reduction box 6a-3, first walking sprocket 6a-4, second walking sprocket 6a-5, walking chain 6a-6, active walking wheel 6a-7,

[0058] Passive walking mechanism 6b, driven wheel 6b-1, universal wheel assembly 6b-2, connecting seat 6b-21, second driven wheel 6b-22, limiting wheel 6b-23,

[0059] Steering mechanism 7, second mounting seat 7-1, steering motor 7-2, worm gear 7-3,

[0060] Guide mechanism 8, limit guide rail 8-1, steering guide rail 8-2. DETAILED DESCRIPTION

[0061] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings. Figure 1 The direction shown is carried out, that is, Figure 1 The up, down, left, and right directions shown are the up, down, left, and right directions described. Figure 1 The direction is forward, away from Figure 1 The side closest to the center of the garage is called the inner side, and the side away from the center of the garage is called the outer side.

[0062] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0063] It should be understood that terms such as "upper", "lower", "inside" and "outside" to indicate directions or positional relationships are based on the positional relationships described in the drawings and are only used to facilitate the description of the present invention or simplify the description, rather than to indicate a specific direction that must be possessed.

[0064] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention belongs. In the event of a conflict, the definitions in the present specification shall prevail.

[0066] (Example 1)

[0067] See Figures 1 to 14 The three-dimensional parking garage of the present invention comprises a support frame 1, a bearing platform 2, a lifting mechanism 3, a lifting drive mechanism 4, a platform support device 5, a walking mechanism 6, a steering mechanism 7 and a guide mechanism 8. The lifting mechanism 3 is arranged on the support frame 1, and the lifting drive mechanism 4 drives the lifting mechanism 3 to make the bearing platform 2 move up and down. The platform support device 5 is arranged on the support frame 1, and is used to support the bearing platform 2. The steering mechanism 7 is arranged on the support frame 1, and the walking mechanism 6 is arranged on the support frame 1. The support frame 1 is driven by the walking mechanism 6 to move, and the movement trajectory of the walking mechanism 6 is controlled by the steering mechanism 7.

[0068] The running mechanism 6 includes an active running mechanism 6a and a passive running mechanism 6b. The active running mechanism 6a is arranged on the steering mechanism 7, and the passive running mechanism 6b is arranged on the supporting frame 1.

[0069] See Figures 1 to 11 The supporting frame 1 includes four supporting columns 11 and an upper frame assembly 12 .

[0070] There are four supporting columns 11 , and the four supporting columns 11 are all vertically arranged and distributed in a rectangular shape.

[0071] The upper frame assembly 12 comprises a front crossbeam 12-1, a rear crossbeam 12-2, a left crossbeam 12-3, a right crossbeam 12-4, a left front connecting seat 12-5, a left rear connecting seat 12-6, a right front connecting seat 12-7, a right rear connecting seat 12-8, a left front reinforcing seat 12-9, and a right front reinforcing seat 12-10. The front crossbeam 12-1, the rear crossbeam 12-2, the left crossbeam 12-3 and the right crossbeam 12-4 all adopt square tubes. The left crossbeam 12-3 is fixedly arranged between the rear left end of the front crossbeam 12-1 and the front left end of the rear crossbeam 12-2. The right crossbeam 12-4 is fixedly arranged between the rear right end of the front crossbeam 12-1 and the front right end of the rear crossbeam 12-2. The front crossbeam 12-1, the rear crossbeam 12-2, the left crossbeam 12-3 and the right crossbeam 12-4 form a rectangular frame. The left and right ends of the rear cross beam 12-2 are provided with mounting notches 12-21, and the openings of the mounting notches 12-21 face the rear, the top and the corresponding left and right sides. The middle upper side of the rear cross beam 12-2 is provided with a sprocket mounting hole.

[0072] The left front connecting seat 12-5, the left rear connecting seat 12-6, the right front connecting seat 12-7 and the right rear connecting seat 12-8 have the same structure, and all include two right-angle U-shaped package plates.

[0073] A right-angled U-shaped wrapping plate in the left front connecting seat 12-5 is fixedly set at the connection between the front cross beam 12-1 and the left cross beam 12-3, covers the corresponding parts of the front cross beam 12-1 and the left cross beam 12-3 from below, and is fixedly connected to the front cross beam 12-1 and the left cross beam 12-3 respectively; another right-angled U-shaped wrapping plate is fixedly set at the connection between the front cross beam 12-1 and the left cross beam 12-3, covers the corresponding parts of the front cross beam 12-1 and the left cross beam 12-3 from above, forms a whole with the right-angled U-shaped wrapping plate below, and is fixedly connected to the front cross beam 12-1 and the left cross beam 12-3 respectively.

[0074] A right-angled U-shaped wrapping plate in the left rear connecting seat 12-6 is fixedly set at the connection between the rear cross beam 12-2 and the left cross beam 12-3, covers the corresponding parts of the rear cross beam 12-2 and the left cross beam 12-3 from below, and is respectively fixedly connected to the rear cross beam 12-2 and the left cross beam 12-3. The right-angled U-shaped wrapping plate is fixedly set at the upper end of a corresponding supporting column 11; another right-angled U-shaped wrapping plate is fixedly set at the connection between the rear cross beam 12-2 and the left cross beam 12-3, covers the corresponding parts of the rear cross beam 12-2 and the left cross beam 12-3 from above, forms a whole with the corresponding parts of the right-angled U-shaped wrapping plate below, and is respectively fixedly connected to the rear cross beam 12-2 and the left cross beam 12-3.

[0075] A right-angled U-shaped wrapping plate in the right front connecting seat 12-7 is fixedly set at the connection between the front crossbeam 12-1 and the right crossbeam 12-4, covers the corresponding parts of the front crossbeam 12-1 and the right crossbeam 12-4 from below, and is fixedly connected to the front crossbeam 12-1 and the right crossbeam 12-4 respectively; another right-angled U-shaped wrapping plate is fixedly set at the connection between the front crossbeam 12-1 and the right crossbeam 12-4, covers the corresponding parts of the front crossbeam 12-1 and the right crossbeam 12-4 from above, forms a whole with the right-angled U-shaped wrapping plate below, and is fixedly connected to the front crossbeam 12-1 and the right crossbeam 12-4 respectively.

[0076] A right-angled U-shaped wrapping plate in the right rear connecting seat 12-8 is fixedly set at the connection between the rear cross beam 12-2 and the right cross beam 12-4, covers the corresponding parts of the rear cross beam 12-2 and the right cross beam 12-4 from below, and is respectively fixedly connected to the rear cross beam 12-2 and the right cross beam 12-4, and the right-angled U-shaped wrapping plate is fixedly set at the upper end of a corresponding supporting column 11; another right-angled U-shaped wrapping plate is fixedly set at the connection between the rear cross beam 12-2 and the right cross beam 12-4, covers the corresponding parts of the rear cross beam 12-2 and the right cross beam 12-4 from above, forms a whole with the corresponding parts of the right-angled U-shaped wrapping plate below, and is respectively fixedly connected to the rear cross beam 12-2 and the right cross beam 12-4.

[0077] The left front reinforcement seat 12-9 and the right front reinforcement seat 12-10 have the same structure, both of which are U-shaped package plates.

[0078] The left front reinforcement seat 12-9 is fixedly arranged on the front part of the left cross beam 12-3, and covers the lower side and the corresponding parts on the left and right sides of the left cross beam 12-3 from below. The upper side of the part of the left cross beam 12-3 located on the left front reinforcement seat 12-9 is provided with an installation inspection hole. The left front reinforcement seat 12-9 is fixedly arranged on the upper end of a corresponding support column 11. The upper side of the rear part of the left cross beam 12-3 is provided with an installation inspection hole. The upper side of the middle part of the left cross beam 12-3 is provided with a coupling installation hole.

[0079] The right front reinforcement seat 12-10 is fixedly arranged on the front part of the right cross beam 12-4, and covers the lower side and the corresponding parts on the left and right sides of the right cross beam 12-4 from below. The upper side of the part of the right cross beam 12-4 located on the right front reinforcement seat 12-10 is provided with an installation inspection hole. The right front reinforcement seat 12-10 is fixedly arranged on the upper end of a corresponding support column 11. The upper side of the rear part of the right cross beam 12-4 is provided with an installation inspection hole. The upper side of the middle part of the right cross beam 12-4 is provided with a coupling installation hole.

[0080] See Figures 1 to 10 The load-bearing platform 2 is used for parking vehicles. The upper surface of the load-bearing platform 2 is made of corrugated plate, so that the vehicle is not easy to slide after being parked. A hanging plate 21 protruding outward is respectively provided on the left and right sides of the front part and the left and right sides of the rear part of the load-bearing platform 2. A group of column wheels 22 is respectively provided on the left and right sides of the rear part of the load-bearing platform 2. Each group has two column wheels 22, and the two column wheels 22 are rotatably arranged on the load-bearing platform 2, and their rotation axes are both horizontally arranged in the left and right directions. The group of column wheels 22 located on the left side are respectively in rolling contact with the front side and rear side of the support column 11 located on the left rear. The group of column wheels 22 located on the right side are respectively in rolling contact with the front side and rear side of the support column 11 located on the right rear.

[0081] See Figures 1 to 10 The lifting mechanism 3 includes four winding drums 31, and the winding drums 31 are provided with steel wire ropes 31-1. The other end of the steel wire rope 31-1 is fixedly set on the load-bearing platform 2, and the hoisting position of the steel wire rope 31-1 and the load-bearing platform 2 is located in front of a corresponding hanging plate 21. The four winding drums 31 are arranged at the four vertices of a rectangle. The steel wire ropes 31-1 are retracted and released by the winding drums 31 to drive the load-bearing platform 2 to move up and down.

[0082] See Figures 1 to 10 The lifting drive mechanism 4 includes a driving motor 41, a reducer 42, a first driving sprocket 43, a second driving sprocket 44, a first driven sprocket 45, a second driven sprocket 46, a first driven shaft 47, a first chain, a second chain and a second driven shaft 48. The reducer 42 is a worm gear reducer.

[0083] The driving motor 41 is fixedly mounted on the reducer 42, and its motor shaft is drivingly connected to the input shaft of the reducer 42. The reducer 42 is fixedly mounted on the middle part of the rear cross beam 12-2, and the output shaft of the reducer 42 extends from the rear to the front into the rear cross beam 12-2, and the front end of the output shaft is rotatably mounted on the rear cross beam 12-2 through a bearing. The first driving sprocket 43 and the second driving sprocket 44 are coaxially mounted on the output shaft of the reducer 42 from the front to the back, and are located at the sprocket mounting hole of the rear cross beam 12-2, which is convenient for installation and maintenance.

[0084] The first driven shaft 47 is composed of two shafts connected in the middle through a coupling transmission. The first driven shaft 47 is rotatably set in the left cross beam 12-3 through a bearing and a bearing seat, and its rear end extends into the rear cross beam 12-2. It is rotatably set in the rear cross beam 12-2 through corresponding bearings and bearing seats, and is located at the corresponding installation gap 12-21. The coupling is located at the coupling installation hole of the left cross beam 12-3, which is convenient for installation and maintenance. A winding drum 31 of the lifting mechanism 3 is coaxially fixedly set on the front part of the first driven shaft 47, and is located at the installation inspection hole of the front part of the left cross beam 12-3, which is convenient for installation and maintenance; a winding drum 31 of the lifting mechanism 3 is coaxially fixedly set on the rear part of the first driven shaft 47, and is located at the installation inspection hole of the rear part of the left cross beam 12-3, which is convenient for installation and maintenance. The first driven sprocket 45 is coaxially transmission-set on the rear end of the first driven shaft 47, and is located at the installation gap 12-21 at the left end of the rear cross beam 12-2.

[0085] The second driven shaft 48 is composed of two shafts connected in the middle through a coupling transmission. The second driven shaft 48 is rotatably set in the right cross beam 12-4 through a bearing and a bearing seat, and its rear end extends into the rear cross beam 12-2. It is rotatably set in the rear cross beam 12-2 through corresponding bearings and bearing seats, and is located at the corresponding installation gap 12-21. The coupling is located at the coupling installation hole of the right cross beam 12-4, which is convenient for installation and maintenance. A winding drum 31 of the lifting mechanism 3 is coaxially fixedly set on the front part of the second driven shaft 48, and is located at the installation inspection hole of the front part of the right cross beam 12-4, which is convenient for installation and maintenance; a winding drum 31 of the lifting mechanism 3 is coaxially fixedly set on the rear part of the second driven shaft 48, and is located at the installation inspection hole of the rear part of the right cross beam 12-4, which is convenient for installation and maintenance. The second driven sprocket 46 is coaxially driven and set on the rear end of the second driven shaft 48, and is located at the installation gap 12-21 at the right end of the rear cross beam 12-2.

[0086] The first chain is arranged around the first driving sprocket 43 and the first driven sprocket 45. The second chain is arranged around the second driving sprocket 44 and the second driven sprocket 46.

[0087] See Figures 1 to 10 , Fig.13 and Fig.14There are 4 groups of platform support devices 5, and the structures of the 4 groups of platform support devices 5 are the same, including support mounting seats 5-1, platform support blocks 5-2, platform support shafts 5-3, unlocking push rods 5-4, reset push rods 5-5, locking rods 5-6 and tension springs 5-7. The 4 groups of platform support devices 5 are respectively fixedly arranged on the lower front and rear parts of the front cross beam 12-1 and the lower front and rear parts of the rear cross beam 12-2. The platform support devices 5 located on the lower front and rear parts of the front cross beam 12-1 and the platform support devices 5 located on the lower front and rear parts of the rear cross beam 12-2 are arranged symmetrically on the left and right. The support mounting seats 5-1 of the two groups of platform support devices 5 located at the front are respectively fixedly arranged on the lower side of the left front reinforcement seat 12-9 and the lower side of the right front reinforcement seat 12-10. The support mounting seats 5-1 of the two sets of platform support devices 5 located at the rear are respectively fixedly arranged on the lower side of the left rear connecting seat 12-6 and the lower side of the right rear connecting seat 12-8.

[0088] The platform support block 5-2 is rotatably arranged in the support mounting seat 5-1 by its outer end, and its rotation axis is arranged horizontally in the front-back direction. The inner end of the platform support block 5-2 extends inwardly outside the support mounting seat 5-1. The platform support shaft 5-3 is arranged horizontally in the front-back direction in the support mounting seat 5-1, located at the lower side of the inner end of the platform support block 5-2, and supports the platform support block 5-2 from below so that the upper surface of the platform support block 5-2 is in a horizontal state. The unlocking push rod 5-4 is rotatably arranged in the support mounting seat 5-1, and its inner end extends inwardly outside the support mounting seat 5-1. A locking notch 5-41 is arranged on the upper part of the unlocking push rod 5-4. The outer end of the unlocking push rod 5-4 is transmission-connected to the outer end of the platform support block 5-2 through the first connecting rod 5-42. The locking rod 5-6 is slidably arranged in the support mounting seat 5-1 in the up-down direction, and the axis of the locking rod 5-6 is parallel to the rotation axis of the unlocking push rod 5-4 and is located above the rotation axis of the unlocking push rod 5-4. The tension spring 5-7 is arranged between the rotation axis of the unlocking push rod 5-4 and the locking rod 5-6, and the locking rod 5-6 is in sliding contact with the upper part of the unlocking push rod 5-4. The reset push rod 5-5 is rotatably arranged in the support mounting seat 5-1, and its rotation axis is arranged horizontally along the front-back direction. The outer end of the reset push rod 5-5 is transmission-connected with the locking rod 5-6 through the second connecting rod 5-51, and the front end of the reset push rod 5-5 swings up and down to drive the locking rod 5-6 to move up and down.

[0089] When the inner end of the unlocking push rod 5-4 is rotated upward and lifted, the inner end of the platform support block 5-2 is rotated upward and retracted into the support mounting seat 5-1. The locking notch 5-41 of the unlocking push rod 5-4 is rotated to the bottom of the locking rod 5-6, and the tension spring 5-7 pulls the locking rod 5-6 downward to the locking notch 5-41, so that the inner end of the platform support block 5-2 is retracted into the support mounting seat 5-1, and at the same time, the inner end of the reset push rod 5-5 is rotated upward and extended out of the platform support block 5-2.

[0090] See Figures 1 to 10 and Fig.13 There are two active walking mechanisms 6a, and the structures of the two active walking mechanisms 6a are the same, both including a first mounting seat 6a-1, a walking motor 6a-2, a walking reduction box 6a-3, a first walking sprocket 6a-4, a second walking sprocket 6a-5, a walking chain 6a-6 and an active walking wheel 6a-7.

[0091] The travel motor 6a-2 is fixedly arranged on the first mounting seat 6a-1, and the motor shaft of the travel motor 6a-2 is transmission-connected with the input shaft of the travel reduction box 6a-3. The travel reduction box 6a-3 is fixedly arranged on the first mounting seat 6a-1, and the first travel sprocket 6a-4 is transmission-arranged on the output shaft of the travel reduction box 6a-3. The output shaft of the travel reduction box 6a-3 is horizontally arranged in the left and right directions. The second travel sprocket 6a-5 and the active travel wheel 6a-7 are coaxially transmission-rotated and arranged on the first mounting seat 6a-1, and the rotation axes of the second travel sprocket 6a-5 and the active travel wheel 6a-7 are arranged parallel to the axis of the output shaft of the travel reduction box 6a-3. The travel chain 6a-6 is arranged around the first travel sprocket 6a-4 and the second travel sprocket 6a-5. Thus, the active travel wheel 6a-7 is driven to rotate by the travel motor 6a-2.

[0092] See Figure 1 and Fig.11 The passive walking mechanism 6b includes a driven wheel 6b-1 and a universal wheel assembly 6b-2. The driven wheel 6b-1 is rotatably arranged on the lower end of the support column 11 located at the left rear, and its rotation axis is horizontally arranged in the left and right directions.

[0093] The universal wheel assembly 6b-2 includes a connecting seat 6b-21, a second driven wheel 6b-22 and a limiting wheel 6b-23.

[0094] The connecting seat 6b-21 is rotatably connected to the lower end of the supporting column 11 located at the right rear, and its rotation axis is vertically arranged in the up-down direction. There are two second driven wheels 6b-22, and the two second driven wheels 6b-22 are rotatably arranged on the connecting seat 6b-21 in sequence from the front to the back, and their rotation axes are horizontally arranged in the left-right direction, with good support and more stable when turning. There are two limiting wheels 6b-23, and the two limiting wheels 6b-23 are rotatably arranged on the left and right sides of the connecting seat 6b-21, respectively, and are coaxially arranged.

[0095] See Figures 1 to 10 and Fig.13 There are two steering mechanisms 7, and the two steering mechanisms 7 are respectively fixedly arranged on the lower ends of the two supporting columns 11 located at the front. The two active walking mechanisms 6a are respectively arranged on the corresponding one steering mechanism 7.

[0096] The two steering mechanisms 7 have the same structure, and both include a second mounting seat 7-1, a steering motor 7-2, and a worm gear 7-3. The second mounting seat 7-1 is fixedly arranged on the lower end of the support column 11. The first mounting seat 6a-1 of the active walking mechanism 6a is rotationally connected to the second mounting seat 7-1. The steering motor 7-2 is fixedly arranged in the second mounting seat 7-1, and the turbine of the worm gear 7-3 is fixedly arranged on the first mounting seat 6a-1, located in the second mounting seat 7-1, and the worm gear of the worm gear 7-3 is arranged on the motor shaft of the steering motor 7-2. Thus, the steering motor 7-2 drives the first mounting seat 6a-1 of the active walking mechanism 6a to rotate, that is, drives the active walking wheel 6a-7 to rotate, and controls the walking route.

[0097] See Figures 1 to 10 The guide mechanism 8 includes a limiting guide rail 8-1, a turning guide rail 8-2 and a limiting plate 8-3. The limiting guide rail 8-1 and the turning guide rail 8-2 are arranged parallel to each other, and the limiting guide rail 8-1 and the turning guide rail 8-2 are arranged in sequence from right to left. The turning guide rail 8-2 is a U-shaped guide rail with an opening facing upward. The limiting guide rail 8-1 is a guide rail provided with an inverted T-shaped groove. The length of the turning guide rail 8-2 is less than the length of the limiting guide rail 8-1, and the rear end of the turning guide rail 8-2 is flush with the rear end of the limiting guide rail 8-1. The driven wheel 6b-1 of the passive walking mechanism 6b is rollingly set in the U-shaped groove of the turning guide rail 8-2. The two second driven wheels 6b-22 of the universal wheel assembly 6b-2 are rollingly set in the turning guide rail 8-2, and the two limiting wheels 6b-23 are respectively rollingly set in the grooves on both sides of the inverted T-shaped groove. The limiting plate 8-3 is fixedly mounted on the lower end of the supporting column 11 on which the universal wheel assembly 6b-2 is mounted, and is vertically arranged in the front-to-back direction. The distance between the limiting plate 8-3 and the inner side surface of the limiting guide rail 8-1 is 3 to 8 mm, and is 5 mm in this embodiment.

[0098] When the three-dimensional parking garage of the present invention is used, the limit rail 8-1 and the turning rail 8-2 are arranged perpendicular to the road direction and are located on both sides of the parking spaces of the reverse parking type. Therefore, the number of parking spaces of the original reverse parking type can be doubled by the three-dimensional parking garage. In the initial state, the load-bearing platform 2 is hung on the platform support block 5-2 of the platform support device 5 by its hanging plate 21. At this time, the locking notch 5-41 of the unlocking push rod 5-4 faces inward, the locking rod 5-6 is located above the outer side of the locking notch 5-41, and the inner side of the reset push rod 5-5 is retracted outward into the support mounting seat 5-1.

[0099] One car can be parked on the ground below the bearing platform 2. When the vehicle needs to be parked on the bearing platform 2 of this three-dimensional parking garage, the vehicle to be parked only needs to be parked in front of the adjacent parking space on the side where the steering guide rail 8-2 is located.

[0100] The active walking mechanism 6a of the walking mechanism 6 drives the support frame 1 to move forward along the guide mechanism 8. When the driven wheel 6b-1 of the passive walking mechanism 6b is separated from the steering guide rail 8-2, the steering mechanism 7 controls the direction of the active walking mechanism 6a to turn, so that the front of the support frame 1 turns to the direction of the front of the vehicle to be parked. When the support frame 1 rotates to be perpendicular to the limit guide rail 8-1, the support frame 1 is located in front of the vehicle to be parked. The lifting mechanism 3 first lifts the load-bearing platform 2 upward, and the inner end of the unlocking push rod 5-4 is pushed upward through the hanging plate 21. When the locking notch 5-41 of the unlocking push rod 5-4 is turned to the bottom of the locking rod 5-6, the tension spring 5-7 pulls the locking rod 5-6 downward to the locking notch 5-41, so that the inner end of the platform support block 5-2 is retracted into the support mounting seat 5-1, and at the same time, the inner end of the reset push rod 5-5 rotates upward and extends out of the platform support block 5-2. At this time, the load-bearing platform 2 is lowered downward by the lifting mechanism 3, and the hanging plate 21 of the load-bearing platform 2 is not affected by the platform support block 5-2 and can be smoothly lowered. When the hanging plate 21 hits the inner end of the reset push rod 5-5, the inner end of the reset push rod 5-5 is pushed downward, so that the locking rod 5-6 moves upward. When the locking rod 5-6 is separated from the locking notch 5-41 of the unlocking push rod 5-4, under the action of gravity, the platform support block 5-2 falls to the inside and falls on the platform support shaft 5-3, and the locking notch 5-41 of the unlocking push rod 5-4 turns to the inside. When the hanging plate 21 continues to move downward and separates from the reset push rod 5-5, the locking rod 5-6 falls on the corresponding part of the outer end of the locking notch 5-41 of the unlocking push rod 5-4 under the action of the tension spring 5-7. When the load-bearing platform 2 falls to the ground, the vehicle to be parked is directly driven onto the load-bearing platform 2, and then the driver can get off. The load-bearing platform 2 is raised by the lifting mechanism 3, and the vehicle parked on the load-bearing platform 2 is lifted. When the hanging plate 21 moves upward to the platform support block 5-2, the inner end of the platform support block 5-2 extending out of the support mounting seat 5-1 is pushed upward. When the hanging plate 21 continues to move upward and disengages from the platform support block 5-2, the locking notch 5-41 of the unlocking push rod 5-4 has not yet moved to the bottom of the locking rod 5-6. Therefore, under the action of gravity, the platform support block 5-2 falls inward and falls on the platform support shaft 5-3. The inner end extends out of the support mounting seat 5-1 and is located below the hanging plate 21. Then the lifting mechanism 3 lowers the load-bearing platform 2 again, so that the hanging plate 21 falls on the inner end of the platform support block 5-2 to complete the lifting of the vehicle. Finally, the walking mechanism 6 drives the support frame 1 to return to the top of the ground parking space along the original route to complete the parking of the vehicle. When picking up the car, just repeat the above steps. The whole process does not require the driver to perform reverse parking operations, which brings good news to the majority of drivers.

[0101] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-dimensional parking garage, comprising a support frame, the support frame comprising four support columns and an upper frame assembly; the upper frame assembly is a rectangular frame structure; there are four support columns, the four support columns are vertically arranged and distributed in a rectangular shape, and the upper frame assembly is fixedly arranged on the four support columns; characterized in that: It also includes a load-bearing platform, a lifting mechanism, a lifting drive mechanism, a platform support device, a walking mechanism and a steering mechanism; the lifting mechanism is arranged on the support frame, and the lifting drive mechanism drives the lifting mechanism to make the load-bearing platform move up and down; the platform support device is arranged on the support frame, and is used to support the load-bearing platform; There are 4 groups of platform support devices, and the structures of the 4 groups of platform support devices are the same, and all of them include a support mounting seat, a platform support block, a platform support shaft, an unlocking push rod, a reset push rod, a locking rod and a tension spring; the 4 groups of platform support devices are respectively fixedly arranged on the left lower front and rear of the upper frame assembly and the right lower front and rear of the upper frame assembly; the platform support block is rotatably arranged in the support mounting seat by its outer end, and its rotation axis is horizontally arranged in the front-back direction; the inner end of the platform support block extends inwardly out of the support mounting seat; The platform support shaft is horizontally arranged in the support mounting seat along the front-back direction, located at the lower side of the inner end of the platform support block, and supports the platform support block from below so that the upper surface of the platform support block is in a horizontal state; the unlocking push rod is rotatably arranged in the support mounting seat, and its inner end extends inwardly out of the support mounting seat; A locking notch is provided on the upper part of the unlocking push rod; the outer end of the unlocking push rod is transmission-connected to the outer end of the platform support block through a first connecting rod; the locking rod is slidingly arranged in the support mounting seat along the up and down directions, and the axis of the locking rod is parallel to the rotation axis of the unlocking push rod and is located above the rotation axis of the unlocking push rod; the tension spring is arranged between the rotation axis of the unlocking push rod and the locking rod, and the locking rod is in sliding contact with the upper part of the unlocking push rod; the reset push rod is rotationally arranged in the support mounting seat, and its rotation axis is horizontally arranged along the front and back directions; the outer end of the reset push rod is transmission-connected to the locking rod through a second connecting rod, and the front end of the reset push rod drives the locking rod to move up and down when it swings up and down; an outwardly protruding hanging plate is respectively provided on the left and right sides of the front and the left and right sides of the rear of the load-bearing platform, which respectively correspond to the platform support blocks of the corresponding platform support devices; the steering mechanism is arranged on the support frame, and the walking mechanism is arranged on the support frame, the support frame is driven to move by the walking mechanism, and the movement trajectory of the walking mechanism is controlled by the steering mechanism, so as to adjust the support frame to be perpendicular or parallel to the road.

2. The three-dimensional parking garage according to claim 1 is characterized in that: The upper surface of the bearing platform adopts a corrugated plate; a group of column wheels are respectively arranged on the left and right sides of the rear of the bearing platform; each group has two column wheels, and the two column wheels are rotatably arranged on the bearing platform, and their rotation axes are horizontally arranged along the left and right directions. The group of column wheels located on the left side are respectively in rolling contact with the front side and rear side of the supporting column located at the left rear; the group of column wheels located on the right side are respectively in rolling contact with the front side and rear side of the supporting column located at the right rear.

3. The three-dimensional parking garage according to claim 1 is characterized in that: The lifting mechanism includes 4 winding drums, each of which is provided with a steel wire rope; the other end of the steel wire rope is fixedly arranged on the bearing platform, and the 4 winding drums are distributed at the four vertices of a rectangle; the bearing platform is driven up and down by the winding drums to retract and release the steel wire rope.

4. The three-dimensional parking garage according to claim 3 is characterized in that: The lifting drive mechanism includes a driving motor, a reducer, a first driving sprocket, a second driving sprocket, a first driven sprocket, a second driven sprocket, a first driven shaft, a first chain, a second driven shaft and a second chain; the reducer adopts a worm gear reducer; The driving motor is fixedly arranged on the reducer, and its motor shaft is drivingly connected to the input shaft of the reducer; the reducer is fixedly arranged on the upper frame assembly, and the first driving sprocket and the second driving sprocket are coaxially driven and arranged on the output shaft of the reducer in sequence from front to back; The first driven shaft is rotatably arranged on the left part of the upper frame assembly through a bearing and a bearing seat, a winding drum of the lifting mechanism is coaxially fixedly arranged on the front part of the first driven shaft, and a winding drum is coaxially fixedly arranged on the rear part of the first driven shaft; the first driven sprocket is coaxially transmission-arranged on the rear end of the first driven shaft; The second driven shaft is rotatably arranged on the right part of the upper frame assembly through a bearing and a bearing seat, a winding drum of the lifting mechanism is coaxially fixedly arranged on the front part of the second driven shaft, and a winding drum is coaxially fixedly arranged on the rear part of the second driven shaft; the second driven sprocket is coaxially arranged on the rear end of the second driven shaft; A first chain is disposed around a first driving sprocket and a first driven sprocket; The second chain is disposed around the second driving sprocket and the second driven sprocket.

5. The three-dimensional parking garage according to any one of claims 1 to 4, characterized in that: The walking mechanism includes an active walking mechanism and a passive walking mechanism; there are two active walking mechanisms, and the two active walking mechanisms have the same structure, including a first mounting seat, a walking motor, a walking reduction box, a first walking sprocket, a second walking sprocket, a walking chain and an active walking wheel; The travel motor is fixedly arranged on the first mounting seat, and the motor shaft of the travel motor is drivingly connected to the input shaft of the travel reduction box; the travel reduction box is fixedly arranged on the first mounting seat, and the first travel sprocket is drivingly arranged on the output shaft of the travel reduction box; the output shaft of the travel reduction box is horizontally arranged in the left and right directions; the second travel sprocket and the active travel wheel are coaxially driven and rotated on the first mounting seat, and the rotation axes of the second travel sprocket and the active travel wheel are parallel to the axis of the output shaft of the travel reduction box; the travel chain is arranged around the first travel sprocket and the second travel sprocket; The passive walking mechanism includes a driven wheel and a universal wheel assembly; the driven wheel is rotatably arranged on the lower end of the supporting column located at the left rear, and its rotation axis is horizontally arranged in the left and right directions; The universal wheel assembly includes a connecting seat, a second driven wheel and a limiting wheel; the connecting seat is rotatably connected to the lower end of the supporting column located at the right rear, and its rotation axis is vertically arranged along the up and down directions; there are two second driven wheels, and the two second driven wheels are rotatably arranged on the connecting seat in sequence from the front to the back, and their rotation axes are horizontally arranged along the left and right directions.

6. The three-dimensional parking garage according to claim 5 is characterized in that: There are two steering mechanisms, which are respectively fixed on the lower ends of two supporting columns located at the front; Two active walking mechanisms are respectively arranged on a corresponding steering mechanism; The two steering mechanisms have the same structure, both including a second mounting seat, a steering motor and a worm gear; the second mounting seat is fixedly arranged on the lower end of the supporting column; the first mounting seat of the active walking mechanism is rotatably connected with the second mounting seat; the steering motor is fixedly arranged in the second mounting seat, the turbine of the worm gear is fixedly arranged on the first mounting seat and is located in the second mounting seat, and the worm gear transmission of the worm gear is arranged on the motor shaft of the steering motor.

7. The three-dimensional parking garage according to claim 5 is characterized in that: It also includes a guide mechanism; the guide mechanism includes a limit guide rail, a steering guide rail and a limit plate; the limit guide rail and the steering guide rail are arranged in parallel with each other, and the limit guide rail and the steering guide rail are arranged in sequence from right to left; the steering guide rail is a U-shaped guide rail with an upward opening; the limit guide rail is a guide rail with an inverted T-shaped groove; the length of the steering guide rail is less than that of the limit guide rail, and the rear end of the steering guide rail is flush with the rear end of the limit guide rail; The universal wheel assembly also includes a limiting wheel; there are two limiting wheels, which are rotatably arranged on the left and right sides of the connecting seat respectively and are coaxially arranged; The two second driven wheels of the universal wheel assembly of the passive walking mechanism are rollingly set in the steering guide rail, and the two limiting wheels are rollingly set in the grooves on both sides of the inverted T-shaped groove; the limiting plate is fixedly set on the lower end of the supporting column on which the universal wheel assembly is installed, and is vertically set in the front-rear direction.

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