Composite scissor lift, two-layer parking frame and parking method of two-layer parking frame

Abstract

The invention discloses a composite shear fork elevator, a two-layer parking frame and a parking method thereof.The composite shear fork elevator of the two-layer parking frame comprises a main shear fork machine, an auxiliary shear fork machine and a linkage mechanism and is an elevator formed by combining the main shear fork machine, the auxiliary shear fork machine and the linkage mechanism of more than two kinds of shear fork mechanisms of different sizes, the auxiliary shear fork machine is not provided with a power device and has the function that the whole composite shear fork elevator meets the ultrahigh lifting height at the ultralow lowest height, the sizes, the lifting heights and the arrangement positions of the main shear fork machine and the auxiliary shear fork machine can be set differently, and the lifting initial time of the auxiliary shear fork machine can be asynchronous with that of the main shear fork machine. The combined scissor lift is simple in structure, few in power element, safe in lifting and particularly suitable for being applied to automobile lifters and low-lifting automobile stereo parking garages.

Description

Technical Field

[0001] The present invention relates to the field of smart parking, and in particular to a composite scissor lift, a two-layer parking rack and a parking method thereof. Background Art

[0002] With the increasing urbanization, vehicles have become an important means of transportation in people's lives. As the number of vehicles gradually increases, parking spaces are becoming increasingly tight, resulting in traffic jams and occupation of fire passages. Therefore, two-story stereo garages are widely used in roadsides or underground garages. Their defects are: first, most of the two-story parking racks are cantilevered car-carrying plates and cantilevered lifting, and cars need to park twice. The equipment has a large bending moment, poor safety and reliability, large civil engineering projects, and high overall equipment costs. Second, general single scissor lifts or multi-stage scissor lifts cannot meet special occasions with ultra-low initial height, limited plane dimensions, and high lifting height. Summary of the invention

[0003] In order to solve one or more of the above problems, the present invention provides a composite scissor lift, a two-layer parking rack and a parking method thereof.

[0004] According to one aspect of the present invention, the composite scissor lift comprises: a main scissor lift, a secondary scissor lift and a linkage mechanism, characterized in that:

[0005] The main scissor lift machine includes: a scissor mechanism, a lifting drive unit, a lower frame, and a main lifting frame. The scissor mechanism is connected to the main lifting frame and the lower frame respectively, and the lifting cylinder is hinged between the inner and outer scissor arms of the scissor mechanism.

[0006] The auxiliary scissor-fork machine is attached to the main scissor-fork machine and rises and falls with the main scissor-fork machine under the action of the linkage mechanism. The auxiliary scissor-fork machine includes: an auxiliary scissor-fork mechanism and an auxiliary lifting platform. The lower support and the lower sliding wheel of the auxiliary scissor-fork mechanism are installed and supported on the main lifting frame, and the upper support and the upper sliding wheel of the auxiliary scissor-fork mechanism are installed and supported under the auxiliary lifting platform.

[0007] The linkage mechanism includes an active block, a driven block, a traction rod, and a collision block. The active block is installed on the sliding wheel shaft of the main scissor-type mechanism, and the driven block is installed on the sliding wheel shaft of the auxiliary scissor-type mechanism. The traction rod is arranged parallel to the main lifting frame, one end of the traction rod is connected to the driven block, and the other end is installed under the auxiliary lifting platform. The collision block is installed on the traction rod, and the collision part of the collision block is always located in the horizontal motion trajectory of the active block.

[0008] In some embodiments, the position of the impact block on the traction rod is adjustable, thereby adjusting the distance between the impact block and the driven block;

[0009] Or the lifting drive part is a lifting cylinder, and a booster is installed at the piston end of the lifting cylinder, and the booster is hinged to the scissor arm of the scissor mechanism.

[0010] The present invention also provides a double composite scissor lift. A double composite scissor lift includes a large scissor mechanism, a small scissor mechanism, and a double linkage mechanism. And one set of large scissor mechanism carries four sets of small scissor mechanisms;

[0011] Each small scissor mechanism includes a small scissor structure and a small lifting platform located above the small scissor structure;

[0012] The double linkage mechanism includes a double connecting rod, a driving block, a driven block, and a collision block. The driving block is installed on the upper sliding wheel shaft of the large scissor mechanism. One driven block is installed at each end of the double connecting rod, and the two driven blocks at both ends are respectively installed on the lower sliding wheel shafts of the lower scissor mechanisms on the same side. The collision block is installed in the middle of the double connecting rod, and the collision part of the collision block is always located in the horizontal movement track line of the driving block.

[0013] In some embodiments, the double composite scissor lift further includes at least three ground rollers, an inclined push handle, and a hydraulic station installed on the lower frame of the large scissor mechanism.

[0014] In some embodiments, when the double composite scissor lift is applied to vehicle lifting, a buffer anti-slip pad is arranged on the upper surface of the small lifting platform and is used to align with the four support point areas of the vehicle floor. When the double composite scissor lift descends to the lowest position, it can be inserted under the vehicle chassis.

[0015] The present invention also provides a two-layer parking rack, which includes any one of the above-mentioned composite scissor lifts or any one of the above-mentioned double composite scissor lifts, and further includes two cantilever vehicle frames, an intermediate positioning beam, and a transverse movement device. The cantilever vehicle frame includes: a column, an upper extension beam, a lower extension beam, and a bottom plate; two upper extension beams and two lower extension beams are respectively installed at the upper and lower ends of the vertically erected column to form a C-shaped frame structure with a width greater than the vehicle width; Two sets of C-shaped frames with the opening facing forward are respectively installed horizontally in the area positions occupied by the front and rear wheels of the vehicle on the first-layer parking space, and the upper and lower positions between the inner sides of the two columns at the rear end are connected by two positioning beams respectively;

[0016] The transverse movement device includes: a transverse movement oil cylinder, an extended stroke oil cylinder, an intermediate trunnion, and a transverse movement solenoid valve; The transverse movement oil cylinder is horizontally placed, the end of its piston rod is installed at the center rear side of the front end beam of the lower frame, an intermediate trunnion is installed at the rear section of the oil cylinder barrel, two extended stroke oil cylinders are arranged on both sides of the rear section of the transverse movement oil cylinder, the stroke and piston diameter of the extended stroke oil cylinder are both smaller than the stroke and piston diameter of the transverse movement oil cylinder, the end of its piston rod is installed on the trunnions on both sides of the intermediate trunnion, and the bottoms of the two extended stroke oil cylinder barrels are abutted against the center front side of the rear end beam of the fixed part.

[0017] In some embodiments, it further includes a side-shifting frame, which includes a side-shifting platform, side-shifting rollers, a side-shifting oil cylinder, a travel stop plate, and a side-shifting solenoid valve; the side-shifting rollers are symmetrically installed in pairs on a horizontal line on the outer front half of the two upper extension beams of the cantilever frame. The side-shifting platform is a horizontal frame composed of a track beam, a front vertical plate, and a wheel support. The track beam uses C-shaped rail steel, and its length is less than or equal to the width of the cantilever frame. The track wheels are rollers embedded in the C-shaped groove of the track beam; the two track beams are placed horizontally with their groove openings facing each other, and the front ends are horizontally connected by the front vertical plate. Two wheel supports for supporting the wheels are laid at the upper plane ends. The side-shifting platform frame is supported by the inner grooves of the two side track beams on the two pairs of side-shifting rollers installed on the upper extension beam. In this way, the side-shifting frame can extend forward by a size greater than half of the width of the cantilever frame. A side-shifting oil cylinder is horizontally installed in the center of the side-shifting platform. The bottom of the cylinder barrel abuts against the front center of the rear wall plate of the column of the cantilever frame. After the end of the piston rod is installed in the center of the front vertical plate at the front end of the side-shifting platform, a travel stop plate is installed in the inner groove at the rear end of each of the two side track beams of the side-shifting platform frame to prevent the side-shifting platform from sliding forward out of the upper extension beam; and the side-shifting solenoid valve is installed on the valve group of the hydraulic station.

[0018] In some embodiments, it further includes an electric control box and a hydraulic station. The hydraulic station is used to provide hydraulic power for each hydraulic cylinder, and the electric control box is an operation box for controlling the hydraulic station.

[0019] The present invention also provides a parking method using a two-layer parking rack. The two-layer parking rack is any of the above two-layer parking racks. Among them, the minimum height of the scissor lift is lower than the ground clearance height of the vehicle chassis. When not working, it is parked in the center of the first-layer parking space. It can be laterally moved on the ground and inserted laterally under the center of the vehicle chassis of the vehicle parked outside the three-dimensional parking rack, lifting the vehicle chassis off the ground, or laterally retracting to place the vehicle in the first-layer parking space, or rising to the second layer or a height above the second layer. First, laterally retract to park away from the parking rack by a horizontal distance and the horizontal distance vacated due to the rise and expansion of the scissor mechanism to make a lateral space. At this time, when a side-shifting frame extends out by one section on each high-rise parking space to reach the full width of the vehicle, the scissor lift then descends and disengages from the vehicle chassis and immediately stops. Then, the scissor lift extends outward and leaves the vehicle storage area space of the parking rack, completely descends to the lowest level, and finally laterally retracts completely to the center of the first-layer parking space.

[0020] The present invention also provides another parking method using a two-layer parking rack, which realizes the storage or retrieval of the vehicle by using any of the above parking racks;

[0021] I. Steps for storing a vehicle on the first layer:

[0022] a The vehicle is parked in the temporary parking area on the ground directly in front of and outside the parking rack;

[0023] b Supply oil to each oil cylinder of the first-layer lateral translation device, and the side-shifting lift extends forward completely and inserts under the vehicle chassis;

[0024] Supply oil to the two lifting cylinders of the lift, and the lift raises the vehicle to a small height above the ground with the vehicle's wheels leaving the ground;

[0025] Supply oil to the cylinders of the first-layer transverse movement device in the reverse direction until the vehicle enters the first-layer parking space. Then, release the oil from the two lifting cylinders of the lift in the reverse direction. The lift descends to the lowest position, the vehicle chassis detaches from the lift, and the vehicle's wheels are supported on the ground. The lift stops below the vehicle chassis on the first layer;

[0026] Complete the operation of storing the vehicle in the first-layer parking space;

[0027] III. Steps for taking out a vehicle on the first layer:

[0028] Supply oil to the two lifting cylinders of the lift, and the lift raises the vehicle parked on the first layer to a small height above the ground with the vehicle's wheels leaving the ground;

[0029] Supply oil to the cylinders of the first-layer transverse movement device, and the lift fully extends forward with the vehicle to reach the temporary parking area;

[0030] Release the oil from the lifting cylinders of the lift, and the lift descends to the lowest position. The vehicle chassis detaches from the lift, and the vehicle's wheels are supported on the ground;

[0031] Supply oil to the cylinders of the first-layer transverse movement device in the reverse direction, and the lift moves backward to the initial position to complete the operation of taking out the vehicle on the first layer;

[0032] III. Steps for storing a vehicle on the second layer:

[0033] The vehicle stops in the temporary parking area on the ground directly in front of and outside the parking rack;

[0034] Supply oil to the cylinders of the first-layer transverse movement device, and the lift fully extends forward and inserts under the vehicle chassis;

[0035] Supply oil to the two lifting cylinders of the lift, and the lift raises the vehicle until the lower plane of the vehicle's wheels is higher than the height of the side movement platform in the side movement frame;

[0036] Supply oil to the cylinders of the first-layer transverse movement device in the reverse direction until the lift moves backward a distance of S1 with the vehicle;

[0037] Simultaneously supply oil to the two side movement cylinders on the second layer synchronously until the two side movement platforms extend forward a stroke of S2 and reach under the front and rear wheels of the vehicle. Then, release the oil from the lifting cylinders of the lift synchronously until each wheel of the vehicle drops onto the wheel racks of the two side movement platforms for support. Then, supply oil to the two side movement cylinders on the second layer synchronously in the reverse direction until the vehicle enters the second-layer parking space;

[0038] Supply oil to the cylinders of the first-layer transverse movement device, and the lift fully extends forward. Then, continue to release the oil from the lifting cylinders until the lift reaches the lowest position,

[0039] o Finally, supply oil in the reverse direction to each horizontal movement oil cylinder of the first layer until the lift returns to the initial position;

[0040] Complete the vehicle parking operation on the second layer;

[0041] IV. Steps for taking out the vehicle on the second layer:

[0042] p Supply oil to each oil cylinder of the horizontal movement device of the first layer, and the lift extends forward to reach the temporary parking area;

[0043] q Supply oil to the lifting oil cylinder of the lift, and the lift rises to the same height as the side shift platform;

[0044] r At the same time, supply oil to the side shift oil cylinders of the second layer synchronously, and the two side shift platforms carry the vehicle and move horizontally above the lift,

[0045] s Then supply oil to each lifting oil cylinder of the lift until the vehicle is lifted, and the front and rear wheels of the vehicle are separated from the wheel frames of the two side shift platforms,

[0046] t Then supply oil to the side shift oil cylinders of the second layer in the reverse direction synchronously until the two side shift platforms return to the initial position without load;

[0047] u Release the oil from each lifting oil cylinder of the lift until the lift reaches the lowest position, the vehicle is separated from the lift, and the vehicle support of the vehicle touches the ground,

[0048] v Finally, supply oil to each oil cylinder of the horizontal movement device of the first layer in the reverse direction until the lift returns to the initial position; the driver can get on the vehicle and drive away, completing the vehicle taking-out operation on the second layer. Description of the Drawings

[0049] Figure 1 is the front view schematic diagram of the composite scissor lift of the present invention in the highest state;

[0050] Figure 2 is Figure 1 the enlarged schematic diagram of the linkage mechanism of the partial A in

[0051] Figure 3 is the front view schematic diagram of the double composite scissor lift of the present invention in the highest state of elevation;

[0052] Figure 4 is the front view schematic diagram of the horizontally movable vehicle lift of the invention in the highest state of elevation;

[0053] Figure 5 is the front view schematic diagram of the side shift three-dimensional parking rack of the present invention in the states of side shifting and elevating of the horizontally movable vehicle lift and full extension of the side extension rack;

[0054] Figure 6 is the invention Figure 5 top view schematic diagram;

[0055] Figure 7 is a left view schematic diagram of the invention Figure 5 ;

[0056] Figure 8 is a front view schematic diagram of the four-column frame of the present invention;

[0057] Figure 9 is a top view schematic diagram of the invention Figure 8 ;

[0058] Figure 10 is a left view schematic diagram of the invention Figure 8 ;

[0059] Figure 11 is a front view schematic diagram of the highest state of the side-shifting lift in cooperation with the four-column frame;

[0060] Figure 12 is a schematic diagram of a partial cross-section of an additional cylinder barrel at the end of the transverse oil cylinder of the invention;

[0061] In the figure:

[0062] Side-shifting lift 10, main scissors machine 1, scissors mechanism 11, upper sliding wheel shaft 111, lifting oil cylinder 12, lower frame 13, inclined push handle 131, front end beam 132, main lifting frame 14, translation mechanism 15, translation frame 151, sliding support 152, translation roller 153, translation channel steel 154, booster 16;

[0063] Auxiliary scissors machine 2, auxiliary scissors mechanism 21, lower sliding wheel shaft 211, auxiliary lifting platform 22;

[0064] Linkage mechanism 3, driving block 31, driven block 32, traction rod 33, collision block 34;

[0065] Hydraulic station 4;

[0066] Double composite scissors machine 5, transverse shifting lift 50, large scissors machine 51, small scissors machine 52, small scissors mechanism 521, small lifting platform 522, double lifting platform 523, double linkage mechanism 53, ground roller 54;

[0067] Transverse shifting device 6, transverse shifting oil cylinder 61, piston rod 611, range extension oil cylinder 62, intermediate trunnion 63, transverse shifting solenoid valve 64, additional piston 65, additional cylinder barrel 66;

[0068] Cantilever frame 7, column 71, upper extension beam 72, lower extension beam 73, bottom plate 74, positioning beam 75;

[0069] Side-shifting frame 8, side-shifting platform 81, track beam 811, front vertical plate 812, wheel frame 813, side-shifting roller 82, side-shifting oil cylinder 83, stroke stop plate 84, side-shifting solenoid valve 85;

[0070] Electric control box 9;

[0071] Four-column frame 100, front column 101, front cross beam 102, rear column 103, rear cross beam 104, load-bearing beam 105, upper support 106, lower support 107, end beam 108. Specific embodiments

[0072] The present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component respectively.

[0073] As Figures 1 to 2 shown, schematically shown is a composite scissor lift according to the present invention, which is a main and auxiliary scissor lift of two or more scissor mechanisms with different sizes, a lift combined by a linkage device, (scissor lift is abbreviated as scissor machine) among which the main scissor machine is equipped with a power device by itself, and the auxiliary scissor machine is not equipped with a power device. Its function is that the entire composite scissor lift can meet the highest lifting height with the lowest minimum height, lower than the ground clearance height of the vehicle chassis, and the sizes, lifting heights and layout positions of the main and auxiliary scissor machines can be set differently, and the initial lifting time of the auxiliary scissor machine can be asynchronous with that of the main scissor machine.

[0074] The composite scissor lift includes: a main scissor machine 1, an auxiliary scissor machine 2, and a linkage mechanism 3.

[0075] The main scissor machine 1 is a scissor lift with a general ordinary design, including: a scissor mechanism 11, a lifting oil cylinder 12, a lower frame 13, a main lifting frame 14, and for an ultra-thin scissor lift, a booster 16 is further included. The scissor mechanism 11 is connected to the main lifting frame 14 and the lower frame 13 respectively up and down through a support and a sliding wheel. The lifting oil cylinder 12 is installed between the inner and outer scissor arms of the scissor mechanism 11 through a pin shaft. For an ultra-thin scissor lift, because the initial tilt angle of the lifting oil cylinder 12 is too small, the initial thrust will increase, so a booster 16 will be installed at the end of the piston rod of the lifting oil cylinder 12. The booster 16 is installed on the scissor arm through a pin shaft. Its function is that during the initial pushing period of the lifting oil cylinder 12, with a smaller thrust, the booster 16 is pushed to swing, and the lower plane of the lower frame 13 is used to jack up the movable fulcrum, increasing the angle between the lifting oil cylinder 12 and the stressed scissor arm, thereby reducing the thrust during the initial lifting period.

[0076] The secondary scissor lift 2 is a scissor lift without a lifting oil cylinder and is attached to the main scissor lift 1. Its lifting power comes from the thrust of the scissor mechanism 11 in the main scissor lift 1. The secondary scissor lift 2 includes: a secondary scissor mechanism 21 and a secondary lifting platform 22. The lower frame function of the secondary scissor lift 2 will be borne by the main lifting frame 14. The lower support and the lower sliding wheels of the secondary scissor mechanism 21 are installed and supported on the main lifting frame 14, and the upper support and the upper sliding wheels of the secondary scissor mechanism 21 are installed and supported under the secondary lifting platform 22. The beneficial effect is that the ratio of the lifting height of the secondary scissor lift 2 relative to the lifting height of the main scissor lift 1 can be freely selected.

[0077] The linkage mechanism 3 includes a driving block 31, a driven block 32, a traction rod 33, and a striking block 34. The driving block 31 is installed on the sliding wheel shaft 111 of the main scissor mechanism 11. The driven block 32 is installed on the lower sliding wheel shaft 211 of the secondary scissor mechanism 21. The traction rod 33 is placed horizontally, with one end connected to the driven block 32 and the other end installed under the secondary lifting platform 22. The traction rod 33 always maintains a horizontal state. The striking block 34 is installed on the traction rod 33, and the horizontal distance between the striking block 34 and the driven block 32 can also be made adjustable. Moreover, the collision part of the striking block 34 is always located in the horizontal movement trajectory line of the driving block 31. That is, during the entire lifting state and horizontal movement process of the driving block 31, it will inevitably collide with the striking block 34 and push the striking block 34 to move together, thereby pulling the driven block 32 to move, causing the secondary scissor mechanism 21 to perform an unfolding movement and realizing the lifting of the secondary lifting platform 22.

[0078] The hydraulic station 4 supplies hydraulic oil to the lifting oil cylinder 12 and is installed in the space position on the lower frame 13 or placed beside the lift as an independent component.

[0079] Working principle of the composite scissor lift: The hydraulic station 4 supplies hydraulic oil to the lifting oil cylinder 12. The lifting oil cylinder 12 jacks up the scissor arms of the scissor mechanism 11 through the booster 16 in a state of reducing the initial thrust. The scissor arms of the scissor mechanism 11 are gradually unfolded, and the main lifting frame 14 rises smoothly. The upper sliding wheel shaft 111 of the scissor arms gradually moves towards the center. After the driving block 31 moves a certain distance towards the center along with the upper sliding wheel shaft 111, it will collide with the striking block 34 and push the striking block 34 to move. Then, through the traction rod 33, the lower sliding wheel shaft 211 of the upper secondary scissor mechanism 21 is pulled (or pushed) to move jointly. The scissor arms of the secondary scissor mechanism 21 are gradually unfolded, and the secondary lifting platform 22 rises smoothly until the main scissor lift 1 rises to the highest point and at the same time the secondary scissor lift 2 rises to the highest point, then the composite scissor lift rises to the highest. Generally, when the scissor lift releases oil from the lifting oil cylinder 12, the composite scissor lift will generate an automatic descending function due to the action of the load and the weight of the lifting components. Generally, the lifting oil cylinder 12 adopts a plunger type oil cylinder.

[0080] The beneficial effects are as follows: First, different from other multi-stage scissor lifts, the main and auxiliary scissor lifts of this composite scissor lift can have different sizes and lifting heights. The position of the auxiliary scissor lift can be arranged by making full use of the structural space of the main scissor lift, as well as the initial lifting time of the auxiliary scissor lift, so as to meet a relatively high lifting height with a relatively low minimum height. Moreover, this mechanism is simple and has fewer power units. This structure can meet special occasions with an extremely low initial height, limited planar dimensions, and a high lifting height. Second, this device is applicable to two-layer parking racks, avoiding cantilever lifting, reducing the bending moment of the equipment support, having high safety and reliability, small civil engineering work, and reducing the equipment cost.

[0081] Furthermore, as Figure 3 shown, when this composite scissor lift is applied in a vehicle lift, it can replace the current mother-type vehicle lift. If the respective lifting height distribution ratios of the main scissor lift and the auxiliary scissor lift in this composite scissor lift are relatively large, it develops into a double composite scissor lift 5, including: a large scissor lift 51, a small scissor lift 52, and a double linkage mechanism 53. That is, one set of large scissor lift 51 carries four sets of small scissor lifts 52. Each small scissor lift 52 is composed of a small scissor mechanism 521 with a small lifting platform 522 installed above it. The upper surface can be installed with a buffer and anti-slip pad to align with the four support point areas of the vehicle chassis. The double linkage mechanism 53 is composed of a double link 531, as well as a driving block 31, a driven block 32, and a collision block 34. The driving block 31 is installed on the sliding wheel shaft 111 of the large scissor lift 51. One driven block 32 is installed at each end of the double link 531, and the two driven blocks 32 at both ends are respectively installed on the lower sliding wheel shafts 211 of the same-side lower scissor lift 52, always maintaining a horizontal state. A collision block 34 is installed in the middle of the double link 531, and the collision part of the collision block 34 is always located in the horizontal movement track line of the driving block 31. Therefore, the two double links 531 are respectively connected in series to the lower sliding wheel shafts 211 in the two small scissor mechanisms 521 on both sides, so that the driving blocks 31 installed on the sliding wheel shafts 111 of the scissor arms on both sides of the large scissor lift 51 can synchronously collide with the collision blocks 34 installed on the double link 531, enabling the four small lifting platforms 522 installed above the four small scissor mechanisms 521 to lift synchronously, and vice versa for lowering. The beneficial effects are as follows: It can lift the vehicle higher, facilitating personnel to perform maintenance operations under the chassis, with a more reasonable load distribution, fewer power components, and more stable support.

[0082] Furthermore, as Figure 4 shown, at least three ground rollers 54 are installed on the lower frame 13 of the large scissor lift 51, and installing an inclined push handle 131 and a hydraulic station 4 makes it a transverse lift 50. The beneficial effect is: When the vehicle cannot move, this vehicle lift can be laterally inserted under the vehicle chassis and lift the vehicle, either for on-site maintenance or for moving the position.

[0083] Furthermore, as Figures 5 to 7As shown, in the application of Embodiment 3, the transverse lifting machine 50, in cooperation with the transverse movement device and the side-shifting parking rack, constitutes a new type of lateral three-dimensional parking rack. Taking the two-layer lateral three-dimensional parking rack as an example:

[0084] The side-shifting parking rack includes: a side-shifting lifting machine 10, a transverse movement device 6, two sets of cantilever vehicle frames 7, two sets of side-shifting frames 8, and an electric control box 9;

[0085] The side-shifting lifting machine 10 is the transverse lifting machine 50 after deleting the inclined push handle 131 and setting the hydraulic station 4 on the cantilever vehicle frame 7. Therefore, the side-shifting lifting machine 10 includes: a large scissors machine 51, a small scissors machine 52, a double linkage mechanism 53, ground rollers 54, and a hydraulic station 4, where the sizes and positions of each component will be arranged accordingly according to the specific structural space requirements of the side-shifting parking rack;

[0086] The cantilever vehicle frame 7 is a forward C-shaped cantilever three-dimensional frame for parking and supporting the front or rear wheels of two-layer vehicles. A set of two-layer parking spaces consists of two cantilever vehicle frames 7 and an intermediate positioning beam 75. Each cantilever vehicle frame 7 includes: a column 71, an upper extension beam 72, a lower extension beam 73, and a bottom plate 74; Two upper extension beams 72 and two lower extension beams 73 made of steel plates are vertically installed outside the front steel plates at the upper and lower ends of the column 71 made of flat steel and erected vertically respectively, and both have the function of supporting half of the vehicle's weight and resisting the bending moment generated by this weight. A bottom plate 74 with holes on the surface is installed at each of the two bottoms and the front bottom of the lower extension beam 73, thus forming a C-shaped frame structure with a width greater than the vehicle width; Two sets of C-shaped frames with the opening facing forward are horizontally installed in the areas occupied by the front and rear wheels of the vehicle on the first-layer parking space. The upper and lower positions between the inner sides of the two rear columns 71 are connected by two square steel positioning beams 75 respectively, determining the longitudinal distance between the two C-shaped frames. At this moment, the three-dimensional space surrounded by the two C-shaped frames can laterally accommodate a vehicle. The height of the vertical plate of the lower extension beam 73 is less than the minimum ground clearance of the vehicle chassis and will extend below the chassis of the first-layer vehicle. Each hole on the bottom plate 74 can be fixed to the ground of the first-layer parking space through expansion screws; The beneficial effects are: strong independence, convenient on-site installation, and can be produced modularly.

[0087] The transverse movement device 6 is a power device for laterally moving the side-shifting lift 10. A hydraulic cylinder is used as the driving component here. Generally, the lateral movement distance of the side-shifting lift 10 is greater than the width of the parking space (parking rack). Using an ordinary first-stage cylinder cannot meet the side-shifting distance requirement. The transverse movement device 6 includes: a transverse movement cylinder 61, an extended stroke cylinder 62, an intermediate trunnion 63, and a transverse movement solenoid valve 64. The transverse movement cylinder 61 with a stroke slightly less than the width of the parking space is horizontally placed. The end of its piston rod 611 is installed at the center rear side of the front beam 132 of the lower frame of the side-shifting lift 10. An intermediate trunnion 63 is installed at the rear section of the cylinder barrel. Two extended stroke cylinders 62 are arranged on both sides of the tail section of the transverse movement cylinder 61. The stroke and piston diameter of the extended stroke cylinder 62 are smaller than those of the transverse movement cylinder 61. The ends of its piston rods are installed on the trunnions on both sides of the intermediate trunnion 63. The bottoms of the cylinder barrels of the two extended stroke cylinders 62 are abutted against the center front side of the rear end beam of the fixed part. Then, the transverse movement cylinder 61 can achieve most of the lateral movement distance of the moving part, and the extended stroke cylinder 62 completes the remaining lateral movement distance. The transverse movement solenoid valve 64 is installed on the valve group of the hydraulic station 4 to provide pressure oil and control the contraction movement of the piston rod for both the transverse movement cylinder 61 and the extended stroke cylinder 62 at the same time;

[0088] The transverse movement device 6 installed on the first-floor parking space has its transverse movement cylinder 61 horizontally placed in the center of the first-floor parking space. The end of its piston rod is installed at the center rear side of the front connecting beam of the lower frame of the side-shifting lift 10. The bottoms of the cylinder barrels of the two extended stroke cylinders 62 are abutted against the center front side of the lower positioning beam 75 at the rear end of the cantilever vehicle frame 7; The beneficial effect is: long cylinder stroke and borrowing one power source.

[0089] The side-shifting rack 8 is a power platform for laterally shifting the front or rear wheels of a vehicle, and it includes: a side-shifting platform 81, side-shifting rollers 82, side-shifting cylinders 83, stroke baffles 84, and side-shifting solenoid valves 85; the side-shifting rollers 82 are symmetrically installed in pairs on a horizontal line at the outer front half of the two upper extending beams 72 of the cantilever frame 7. The side-shifting platform 81 is a horizontal frame composed of a track beam 811, a front vertical plate 812, and a wheel frame 813. Among them, the track beam 811 is made of C-shaped rail steel, and its length is less than or equal to the width of the cantilever frame 7. The track wheels 82 are rollers embedded in the C-shaped groove of the track beam 811; the two track beams 811 are horizontally placed with their grooves facing each other, and the front ends are horizontally connected by the front vertical plate 812. At the end of the upper plane, two wheel frames 813 made of flat plates or steel bars that can support the wheels are laid. The side-shifting platform 81 frame is supported by the inner grooves of the two side track beams 811 on the two pairs of side-shifting rollers 82 installed on the upper extending beam 72. In this way, the side-shifting rack 8 can extend forward and laterally by a size greater than half of the width of the cantilever frame 7. A side-shifting cylinder 83 is horizontally installed in the center of the side-shifting platform 81. The bottom of the cylinder barrel abuts against the front center of the rear wall plate of the column 71 of the cantilever frame 7. After the end of the piston rod is installed in the center of the front vertical plate 812 at the front end of the side-shifting platform 81, a stroke baffle 84 is installed in the inner groove at the rear end of each of the two side track beams 811 of the side-shifting platform 81 frame to prevent the side-shifting platform 81 from sliding forward out of the upper extending beam 72; and the side-shifting solenoid valve 85 is additionally installed on the valve group of the hydraulic station 4; therefore, pressure oil is simultaneously supplied to the two side-shifting cylinders 83 in the two sets of side-shifting racks 8 synchronously, so that the two side-shifting platforms 81 on the cantilever frame 7 respectively receive the front and rear wheels of the vehicle and move forward or backward laterally synchronously, realizing the side-shifting action for storing or taking out the second-layer vehicle;

[0090] The electric control box 9 is an operation box for controlling the operation of the hydraulic station 4. It is hung and installed on the lower frame of the vehicle lift and pushed together, which is convenient for personnel to operate. The tubular positioning beam 75 on the cantilever frame 7 can be used as the installation channel and protective cover for the oil pipes of the transverse movement device 6 in each cylinder;

[0091] The working principle of this side-shifting parking rack is as follows Figures 5 to 7As shown, when the side-shifting lift 10 is lifted to the maximum height, one side (arranged at the rear side) of the lower part of the large scissors lift 1 is in a cantilever state, and when the height of the space vacated below is greater than the height of a first-floor vehicle, through the lateral movement device 6 on the first floor, the lift can carry the vehicle lifted above and move backward by a distance S1 towards the rear side of the cantilever frame 7. Then, the extension distance of the upper side-shifting platform 81 of the side-shifting frame 8 configured on the cantilever frame 7 can be reduced by the dimension of the length S1, and the extension dimension required to support the entire vehicle can be achieved, that is, the stroke of only one side-shifting oil cylinder 83 can achieve the extension dimension required for the side-shifting platform 81. Therefore, in this embodiment, the final lateral movement distance for the second-floor vehicle to enter the second-floor parking space is the superimposed distance after the first-floor lateral movement device retracts backward by a distance S1 and the second-floor lateral movement device extends forward by a stroke S2, that is, equal to S1 + S2. At this moment, the rear cantilever part of the lower connecting frame 3 will extend under the chassis of the first-floor vehicle. Therefore, when the lift lifts the second floor or the second floor descends, the lift must be moved forward by the maximum dimension before the operation, otherwise the lift will interfere with the vehicle parked on the first floor during the lifting and lowering process. The beneficial effect is that the cantilever of the second-floor vehicle extending on the parking rack is shorter, greatly reducing the bending moment, and making the structure of the lift and the second-floor side-shifting components simpler, with fewer parts and lower costs.

[0092] The basic operation mode of the new type of lateral three-dimensional parking rack is as follows: the lowest height of the scissors lift is lower than the ground clearance height of the vehicle chassis. When not working, it is parked in the center of the first-floor parking space and can be laterally moved on the ground and inserted laterally under the center of the vehicle chassis parked outside the three-dimensional parking rack, lifting the vehicle chassis off the ground, or laterally retracting to place the vehicle in the first-floor parking space, or raising it to the second floor or a higher floor. First, laterally retract to park away from the horizontal distance of the parking rack and the horizontal distance of the lateral space vacated due to the elevation and expansion of the scissors mechanism. At this moment, after one side-shifting frame extends on each high-rise parking space to reach the full width of the vehicle, the scissors lift then descends and disengages from the vehicle chassis and stops immediately. Then, the scissors lift extends outward and leaves the vehicle storage area space of the parking rack, completely descends to the lowest height, and finally laterally retracts completely to the center of the first-floor parking space.

[0093] At least the electric control components and operation switches for completing four sets of operation procedures are installed on the electric control box 9. The four sets of operation procedures are: storing the first-floor vehicle, retrieving the first-floor vehicle, storing the second-floor vehicle, and retrieving the second-floor vehicle; each operation procedure includes the full operation process of completing the return of the lift and the side-shifting frame.

[0094] The initial state of the side-shifting parking rack is: the side-shifting lift 10 is at the lowest height and in the center position of the first-floor parking space, and the side-shifting platform 81 is in a fully retracted state; there is a temporary parking area on the ground directly in front of the parking rack.

[0095] I. Operation steps for storing the first-floor vehicle:

[0096] a The vehicle is parked in the temporary parking area on the ground directly in front of and outside the parking rack;

[0097] Supply oil to each oil cylinder of the first - layer lateral translation device 6, so that the side - shift lift 10 fully extends forward and inserts under the vehicle chassis;

[0098] Supply oil to the two lifting oil cylinders 12 of the lift, and the lift raises the vehicle to a small height above the ground where the vehicle's wheels are separated from the ground;

[0099] Supply oil in the reverse direction to each oil cylinder of the first - layer lateral translation device 6 until the vehicle enters the first - layer parking space. Then, release the oil in the two lifting oil cylinders 12 of the lift in the reverse direction. The lift descends to the lowest position, the vehicle chassis disengages from the lift, and the vehicle's wheels are supported on the ground. The lift stops under the vehicle chassis on the first layer.

[0100] Complete the operation of storing the vehicle in the first - layer parking space;

[0101] IV. Steps for taking out a vehicle on the first layer:

[0102] Supply oil to the two lifting oil cylinders 12 of the lift, and the lift raises the vehicle parked on the first layer to a small height above the ground where the vehicle's wheels are separated from the ground;

[0103] Supply oil to each oil cylinder of the first - layer lateral translation device 6, and the lift moves forward completely with the vehicle and reaches the temporary parking area;

[0104] Release the oil in the lifting oil cylinder 12 of the lift, and the lift descends to the lowest position. The vehicle chassis disengages from the lift, and the vehicle's wheels are supported on the ground;

[0105] Supply oil in the reverse direction to each oil cylinder of the first - layer lateral translation device 6, and the lift moves backward to the initial position to complete the operation of taking out the vehicle on the first layer;

[0106] III. Steps for storing a vehicle on the second layer:

[0107] i The vehicle stops in the temporary parking area on the ground directly in front of and outside the parking rack;

[0108] Supply oil to each oil cylinder of the first - layer lateral translation device 6, and the lift fully extends forward and inserts under the vehicle chassis;

[0109] Supply oil to the two lifting oil cylinders 12 of the lift, and the lift raises the vehicle until the lower plane of the vehicle's wheels is higher than the height of the lateral translation platform 81 in the lateral translation frame 8;

[0110] Supply oil in the reverse direction to each oil cylinder of the first - layer lateral translation device 6 until the lift moves backward a distance of S1 with the vehicle;

[0111] At the same time, oil is supplied to the two side-shift cylinders 83 on the second layer synchronously until the two side-shift platforms 81 extend forward by a stroke of S2 and reach below the front and rear wheels of the vehicle. Then, the lifting cylinders 12 of the lift are drained synchronously until the wheels of the vehicle drop onto the wheel carriers 813 of the two side-shift platforms 81. Then, oil is supplied to the two side-shift cylinders 83 on the second layer in the reverse direction synchronously until the vehicle enters the parking space on the second layer;

[0112] Oil is supplied to the cylinders of the first-layer transverse movement device 6, and the lift extends fully forward. Then, the lifting cylinders 12 are drained continuously until the lift reaches the lowest position.

[0113] Finally, oil is supplied to the transverse movement cylinders on the first layer in the reverse direction until the lift returns to the initial position;

[0114] The vehicle parking operation on the second layer is completed.

[0115] IV. Steps for taking out the vehicle on the second layer:

[0116] Oil is supplied to the cylinders of the first-layer transverse movement device 6, and the lift extends forward to reach the temporary parking area;

[0117] Oil is supplied to the lifting cylinders 12 of the lift, and the lift rises to the same height as the side-shift platform 81;

[0118] At the same time, oil is supplied to the second-layer side-shift cylinders 83 synchronously, and the two side-shift platforms 81 carry the vehicle and move transversely above the lift;

[0119] Then, oil is supplied to the lifting cylinders 12 of the lift again until the vehicle is lifted, and the front and rear wheels of the vehicle are separated from the wheel carriers 813 of the two groups of side-shift platforms 81;

[0120] Then, oil is supplied to the second-layer side-shift cylinders 83 in the reverse direction synchronously until the two side-shift platforms 81 return to the initial position without load;

[0121] The lifting cylinders 12 of the lift are drained until the lift reaches the lowest position, and the vehicle is separated from the lift. The vehicle support of the vehicle is on the ground.

[0122] Finally, oil is supplied to the cylinders of the first-layer transverse movement device 6 in the reverse direction until the lift returns to the initial position; The driver can get in the vehicle and drive away, completing the vehicle taking-out operation on the second layer.

[0123] The beneficial effects of this method are: The operation is clear and simple, and the actions are safe and reliable.

[0124] Further, as Figures 8 to 10As shown, the stereoscopic parking rack with better stability is a space frame composed of simply supported beam forms, which is called a four-column vehicle frame 100, including: front columns 101, front cross beams 102, rear columns 103, rear cross beams 104, load-bearing beams 105, upper supports 106, lower supports 107, and end beams 108; the front door frame composed of two vertical front columns 101 and a horizontally placed front cross beam 102 is vertically fixed on the ground in front of the first-floor parking space, and the rear door frame composed of two vertical rear columns 103 and a horizontally placed rear cross beam 104 is vertically fixed on the ground at the rear of the first-floor parking space. At least the space size below the front door frame is larger than the stereoscopic projection size of the vehicle wheel side. Four load-bearing beams 105 with lengths greater than the vehicle width form two pairs and are installed in parallel above the front cross beam 102 and the rear cross beam 104. The stereoscopic frame formed thereby can bear a load greater than the weight of one vehicle above, and the space below can store the size of one vehicle; the positions where the two pairs of load-bearing beams 105 are placed are in the areas occupied by the front and rear wheel axles of the vehicle, and a pair of side shift rollers 82 are horizontally installed in the front half of the outer side area facing the load-bearing beam 105 for inserting a set of side shift platforms 81. Above the front cross beam 102 in the center of the inner side of the load-bearing beam 105, an upper support 106 is installed for horizontally installing the cylinder head of the side shift cylinder 83. A lower support 107 is installed on the ground below the center of the rear cross beam 104 for horizontally installing the cylinder heads of two extended cylinders 62. Whenever there is an end beam 108 at the front end of the load-bearing beam 105; thus, the two side shift platforms 81 above can extend towards the front end of the four-column vehicle frame 100 under the drive of their respective side shift cylinders 83, and the extendable distance is approximately half of the width of the four-column vehicle frame 100, and on the ground, under the drive of the transverse movement device 6, the side shift lift 10 can extend towards the front end of the four-column vehicle frame 100 by a distance greater than the width of the four-column vehicle frame 100;

[0125] The beneficial effects are as follows: it has a smaller width than the cantilever vehicle frame 7, a simpler structure, and is more stable in supporting the second-floor vehicle. It is especially suitable for the roadside parking lot where multiple sets of four-column vehicle frames 100 are connected in series longitudinally and the structural mode of the stereoscopic parking rack above the second floor. The front columns 101 between adjacent parking spaces can be shared, which not only increases the strength of the parking rack but also saves at least the material cost of one column.

[0126] Furthermore, as Figure 11As shown in the figure, for the three-dimensional parking rack of the four-column frame 100, two small lifting platforms 522 on the two small scissor mechanisms 521 on the same side of the four small scissor machines 52 of the supporting side-shifting lift 10 are made into a rigid whole, that is, the double lifting platform 523, and the two small scissor mechanisms 521 at the rear end are installed by moving forward a certain distance; at the same time, correspondingly, each upper sliding wheel shaft 111 at the upper end of the large scissor machine 51 is changed from the connection of rolling movement through the sliding roller and the lower sliding plate or chute of the main lifting frame 14 to the connection of the translation mechanism 15. The translation mechanism 15 includes: a translation frame 151, a sliding support 152, translation rollers 153, and a translation channel steel 154; the upper sliding wheel shaft 111 is installed at one end of the horizontally placed translation frame 151 through the sliding support 152, and a pair of translation rollers 153 are installed on the side of each other end of each translation frame 151 at a horizontal distance. These components replace the original sliding rollers. The pair of translation rollers 153 roll and move in the groove of the translation channel steel 154. The translation channel steel 154 horizontally installed under the main lifting frame 14 functions as the original slide plate or sliding channel steel. Initially, the length of the original main lifting frame 14 can be reduced. Thus, after the large scissor machine 51 is lifted, through the forward rolling of the translation rollers 153 on the translation channel steel 154, the translation frame 151 can move forward horizontally by a distance S3 and completely enter under the shortened narrow-sized main lifting frame 14. The beneficial effect is that a net space is realized between the lower part of the cantilever of the double lifting platform 523 and the upper part of the lower frame 13, and it will not be blocked by the central section of the front cross beam 102 of the four-column frame 100 when the side-shifting lift 10 rises to the highest position and moves backward by a large size S1.

[0127] Furthermore, as Figure 12 shown in the figure, after the number of manufacturing of the transverse movement oil cylinders is increased, a section can be machined on the outer diameter of the tail section of the cylinder barrel of the transverse movement oil cylinder 61, and a large-diameter additional piston 65 is added at the tail end, and an additional cylinder barrel 66 is sleeved outside the piston to form a special part two-stage type oil cylinder. The large-diameter stroke added at the tail end will be equal to the stroke generated by the stroke-increasing oil cylinder 62, and the outer diameter of the additional cylinder barrel is smaller than the minimum ground clearance of the vehicle chassis; the beneficial effect is that the structure is simpler and more complete, which is convenient for layout and installation.

[0128] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A composite scissor lift, characterized in that: The invention comprises: a main scissor-fork machine (1), an auxiliary scissor-fork machine (2) and a linkage mechanism (3), and is characterized in that: The main scissor lift machine (1) comprises: a scissor lift mechanism (11), a lifting drive unit, a lower frame (13), and a main lifting frame (14); the scissor lift mechanism (11) is connected to the main lifting frame (14) and the lower frame (13) at the top and bottom, respectively; and the lifting cylinder (12) is hinged between the inner and outer scissor lift arms of the scissor lift mechanism (11); The auxiliary scissor-fork machine (2) is attached to the main scissor-fork machine (1) and is lifted and lowered along with the main scissor-fork machine (1) under the action of the linkage mechanism (3). The auxiliary scissor-fork machine (2) comprises: an auxiliary scissor-fork mechanism (21) and an auxiliary lifting platform (22). The lower support and the lower sliding wheel of the auxiliary scissor-fork mechanism (21) are installed and supported on the main lifting frame (14), and the upper support and the upper sliding wheel of the auxiliary scissor-fork mechanism (21) are installed and supported under the auxiliary lifting platform (22). The linkage mechanism (3) comprises an active block (31), a driven block (32), a traction rod (33), and a collision block (34); the active block (31) is mounted on a sliding wheel shaft (111) on a main scissor mechanism (11); the driven block (32) is mounted on a sliding wheel shaft (211) on a secondary scissor mechanism (21); the traction rod (33) is arranged parallel to the main lifting frame (14); one end of the traction rod (33) is connected to the driven block (32) and the other end is mounted below the secondary lifting platform (22); the collision block (34) is mounted on the traction rod (33), and the collision portion of the collision block (34) is always located in the horizontal motion trajectory of the active block (31).

2. A composite scissor lift according to claim 1, characterized in that: The position of the collision block (34) on the traction rod (33) is adjustable, so as to adjust the distance between the collision block (34) and the driven block (32); Or the lifting drive unit is a lifting cylinder (12), and a booster (16) is installed at the piston end of the lifting cylinder (12), and the booster (16) is hinged to the scissor arm of the scissor mechanism (11).

3. A double compound scissor lift, characterized in that: It comprises a large scissor-fork machine (51), a small scissor-fork machine (52) and a double linkage mechanism (53), and one set of the large scissor-fork machine (51) carries four sets of the small scissor-fork machines (52); Each small scissor-fork machine (52) comprises a small scissor-fork mechanism (521) and a small lifting platform (522) located above the small scissor-fork mechanism (521); The double linkage mechanism (53) comprises a double link (531), an active block (31), a driven block (32) and a collision block (34), wherein the active block (31) is mounted on an upper sliding wheel shaft (111) of a large scissor lift (51), a driven block (32) is mounted at each end of the double link (531), and the driven blocks (32) at both ends are mounted on the lower sliding wheel shaft of the lower scissor lift (52) on the same side, respectively, and a collision block (34) is mounted in the middle of the double link (531), and a collision portion of the collision block (34) is always located in a horizontal motion trajectory of the active block (31).

4. The double compound scissor lift according to claim 3, characterized in that: The double compound scissor lift also includes at least three ground rollers (54) mounted on a lower frame (13) of the large scissor lift (51), an inclined push handle (131) and a hydraulic station (40).

5. A double compound scissor lift according to any one of claims 3 or 4, characterized in that: The double-compound scissor lift is applied to automobile lifting. The upper surface of the small lifting platform (522) is provided with a buffer anti-skid pad and is used to align with four supporting point areas of the automobile floor. When the double-compound scissor lift is lowered to the lowest position, it can be inserted into the bottom of the automobile chassis.

6. A two-layer parking stand, comprising the compound scissor lift according to any one of claims 1-2 or the double compound scissor lift according to any one of claims 3-4, characterized in that: It also includes two cantilever frames (7), an intermediate positioning beam (75) and a transverse movement device (6), wherein the cantilever frame (7) includes: a column (71), an upper extension beam (72), a lower extension beam (73) and a bottom plate (74); the two upper extension beams (72) and the two lower extension beams (73) are respectively installed at the upper and lower ends of the vertically erected column (71) to form a C-shaped frame structure with a width greater than the width of the vehicle; the two sets of C-shaped frames with openings facing forward are respectively installed transversely at the area occupied by the front and rear wheels of the vehicle on a parking space on a first floor, and the upper and lower positions between the inner sides of the two columns (71) at the rear end are respectively connected by two positioning beams (75); The transverse shift device (6) comprises: a transverse shift cylinder (61), an extended-range cylinder (62), an intermediate ear shaft (63), and a transverse shift solenoid valve (64); the transverse shift cylinder (61) is placed horizontally, and the end of its piston rod (611) is installed on the central rear side of the front end beam (132) of the lower frame, and an intermediate ear shaft (63) is installed on the rear section of the cylinder barrel, and two extended-range cylinders (62) are arranged on both sides of the rear section of the transverse shift cylinder (61), and the stroke and piston diameter of the extended-range cylinder (62) are smaller than the stroke and piston diameter of the transverse shift cylinder (61), and the end of its piston rod is installed on the ear shafts on both sides of the intermediate ear shaft (63), and the bottom of the cylinder barrels of the two extended-range cylinders (62) are pressed against the central front side of the rear end beam of the fixing member.

7. A two-layer parking rack according to claim 6, characterized in that: The side shift frame (8) also includes a side shift frame (8), which includes: a side shift platform (81), a side shift roller (82), a side shift cylinder (83), a travel baffle (84), and a side shift solenoid valve (85); the side shift rollers (82) are symmetrically installed in pairs on a horizontal line of the front half of the outer side of the two upper extension beams (72) of the cantilever frame (7); the side shift platform (81) is a horizontal frame composed of a track beam (811), a front vertical plate (812), and a wheel frame (813), wherein the track beam (811) is made of C-shaped track steel, the length of which is less than or equal to the width of the cantilever frame (7), and the track wheel (82) is a roller embedded in the C-shaped groove of the track beam (811); the two track beams (811) are placed horizontally, and the grooves are opposite to each other, the front ends are horizontally connected by the front vertical plate (812), and the upper plane ends are paved with two places The side shift platform (81) frame is provided with a wheel frame (813) which can support two pairs of side shift rollers (82) installed on the upper extension beam (72) in the inner grooves of the track beams (811) on both sides. The side shift frame (8) can extend forward by a size greater than half the width of the cantilever frame (7). A side shift oil cylinder (83) is horizontally installed in the center of the side shift platform (81). The bottom of the oil cylinder barrel is pressed against the front center of the rear end wall plate of the cantilever frame (71). After the piston rod end is installed in the center of the front vertical plate (812) at the front end of the side shift platform (81), a travel baffle (84) is installed in the inner grooves at the rear end of the track beams (811) on both sides of the side shift platform (81) frame to prevent the side shift platform (81) from sliding forward out of the upper extension beam (72); and the side shift solenoid valve (85) is installed on the valve group of the hydraulic station (4).

8. A two-layer parking rack according to any one of claims 6 or 7, characterized in that: It also includes an electric control box (9) and a hydraulic station (4), wherein the hydraulic station (4) is used to provide hydraulic power for each hydraulic cylinder, and the electric control box (9) is an operating box for controlling the hydraulic station (4).

9. A parking method using a two-layer parking rack, characterized in that: The two-story parking rack is the two-story parking rack as described in any one of claims 6 to 8, wherein the lowest height of the scissor lift is lower than the ground clearance height of the vehicle chassis, and it is parked in the center of the first-story parking space when not in operation. It can be moved laterally on the ground and inserted laterally to stop under the center of the vehicle chassis outside the three-dimensional parking rack, lifting the vehicle chassis off the ground, or retracting laterally to place the vehicle in a first-story parking space, or rising to the second floor or above, first retracting laterally to park away from the horizontal distance of the parking rack and the horizontal distance of the lateral space made available due to the lifting and unfolding of the scissor mechanism, at this moment, after a section of the side shift frame is extended from each high-level parking space to reach the full width of the vehicle, the scissor lift then descends and detaches from the vehicle chassis and stops immediately, and then the scissor lift extends outward to leave the parking storage area space of the parking rack, completely descends to the lowest point, and finally completely retracts laterally to the center of the first-story parking space.

10. A parking method using a two-layer parking rack, characterized in that: The parking rack according to any one of claims 6 to 8 is used to store or take out the vehicle; 1. Steps for storing vehicles on the first floor: a. The vehicle is parked in the temporary parking area on the ground outside the parking rack; b. supplying oil to each oil cylinder of the horizontal shift device (6) of one layer, so that the side shift lift (10) is fully extended forward and inserted under the chassis of the vehicle; c. supplying oil to two lifting oil cylinders (12) of the lift, so that the lift lifts the vehicle to a small height where the wheels of the vehicle are off the ground; d. supplying oil to each cylinder of the horizontal shift device (6) on the first floor in the reverse direction until the vehicle enters the parking space on the first floor, and then releasing oil from the two lifting cylinders (12) of the lift in the reverse direction, the lift descends to the lowest position, the vehicle chassis is separated from the lift, the vehicle wheels are supported on the ground, and the lift stops under the vehicle chassis on the first floor; Complete the operation of parking the vehicle in the parking space on the first floor; 2. The first floor vehicle removal operation steps: e) supplying oil to two lifting oil cylinders (12) of the lift, so that the lift lifts a parked vehicle on a level until the wheels of the vehicle are at a small height above the ground; f) supplying oil to the oil cylinders of the horizontal shifting device (6) on the first floor, so that the lift can fully extend forward with the vehicle to the temporary parking area; g. Drain the oil from the lifting cylinder (12) of the lift, and lower the lift to the lowest position. The vehicle chassis is separated from the lift, and the vehicle wheels are supported on the ground; h. supplying oil to the cylinders of the horizontal shifting device (6) of the first layer in the reverse direction, so that the lift moves in the reverse direction to the initial position, thus completing the operation of taking out the vehicle of the first layer; 3. Steps for storing vehicles on the second floor: i The vehicle is parked in the temporary parking area on the ground outside the parking rack; j Supply oil to each cylinder of the first-layer traverse device (6), and the lift is fully extended forward and inserted under the vehicle chassis; k supplies oil to two lifting oil cylinders (12) of the lifting machine, and the lifting machine lifts the vehicle until the lower plane of the vehicle wheels is higher than the height of the side shifting platform (81) in the side shifting frame (8); L supplies oil to each cylinder of the horizontal shift device (6) of one layer in the reverse direction until the lift carries the vehicle and moves backwards by a distance of S1; m simultaneously supplies oil to the two side shift cylinders (83) on the second floor until the two side shift platforms (81) extend forward by a stroke of S2 and reach below the front and rear wheels of the vehicle, then the lifting cylinders (12) of the lift release oil synchronously until the wheels of the vehicle fall to the wheel frames (813) of the side shift platforms (81) on both sides for support, and then supplies oil to the two side shift cylinders (83) on the second floor in the reverse direction synchronously until the vehicle enters the parking space on the second floor; n Supply oil to each cylinder of the horizontal shift device (6) of one layer, and the lift is fully extended forward, and then continue to release oil to the lifting cylinder (12) until the lift is at the lowest position. oFinally, supply oil to each lateral cylinder on one layer in the reverse direction until the lift returns to its initial position; Complete the vehicle storage operation on the second floor; 4. Steps for removing vehicles from the second floor: p supplies oil to each oil cylinder of the horizontal moving device (6) on the first floor, and the lift extends forward to reach the temporary parking area; q Supply oil to the lifting cylinder (12) of the lifting machine, and the lifting machine is raised to the same height as the side shift platform (81); r Simultaneously supply oil to the second-layer side shift cylinder (83), and the two side shift platforms (81) carry the vehicle and move it horizontally to the top of the lift. Then, the lifting cylinders (12) of the lifting machine are supplied with oil until the vehicle is lifted and the front and rear wheels of the vehicle are separated from the wheel frames (813) of the two sets of side shift platforms (81). Then, the second-layer side shift oil cylinder (83) is synchronously supplied with oil in the reverse direction until the two side shift platforms (81) return to their initial positions without any load; u Release the oil from each lifting cylinder (12) of the lift to the lowest position of the lift. The vehicle is off the lift and the vehicle support is close to the ground. vFinally, the oil cylinders of the horizontal shift device (6) on the first floor are supplied with oil in the reverse direction until the lift returns to the initial position; the driver can get on the vehicle and drive away, completing the vehicle pickup operation on the second floor.

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