An access platform for a double-tower three-dimensional parking garage

Abstract

The present application relates to an access platform of a double-tower three-dimensional parking garage, belonging to the field of three-dimensional parking garages, including a front foundation pit with a front tower bottom, a rear foundation pit with a rear tower bottom, a front turntable installed in the front foundation pit, and a rear turntable installed in the rear foundation pit, the front turntable and the rear turntable are both used for vehicle steering, a lifting floor and a lifting device are provided in the front foundation pit, a mounting opening is provided on the lifting floor, the front turntable is installed in the mounting opening, the lifting device is located at the bottom of the lifting floor, the lifting device is used to drive the lifting floor up and down to make the lifting floor flush with the front turntable, and the lifting floor moves in the vertical direction. The moving distance of the lifting floor is greater than the height of the front turntable. The present application allows the vehicle to be parked to drive on the lifting floor to pass through the front tower, and then drive to the vehicle placement plate of the rear turntable for parking, thereby allowing the double-tower parking to operate effectively.

Description

Technical Field

[0001] The present application relates to the field of three-dimensional parking garages, and in particular to an access platform of a double-tower three-dimensional parking garage. Background Art

[0002] As the number of vehicles in cities continues to grow, the demand for parking lots in major commercial areas, public places, social units and residential areas in cities has increased accordingly, and the demand for parking spaces is high. However, building parking lots requires a lot of land. Today, urban land resources are expensive and scarce, which has become a bottleneck for building parking lots. The contradiction of parking difficulties has spawned a large number of mechanical three-dimensional parking garages, including lifting and sliding garages, derrick lifting garages, rotating and vertical three-dimensional parking garages, etc., which have appeared and been put into use one after another. This parking technology measure that develops in space has played a positive role in solving the contradiction of car parking in the central urban area of ​​the city.

[0003] The double-tower parking garage is mainly composed of a front tower and a rear tower. There are several parking rooms in the front tower and the rear tower. There are parking plates in each parking room. There are transporters installed in the front tower and the rear tower. The transporters are used to transport the parking plates and the vehicles parked on the parking plates. There is a front pit at the bottom of the front tower. There is a front rotating platform installed in the front pit. There is a rear pit at the bottom of the rear tower. There is a rear rotating platform in the rear pit. Both the front and rear rotating platforms are used to turn the vehicles parked on the parking plates to facilitate the vehicles to drive out of the parking garage.

[0004] With respect to the above-mentioned related technologies, the inventor believes that when the parking room in the front tower is full, there is no parking plate on the front rotating platform, and it is not easy for vehicles to pass through the front foundation pit and drive to the rear tower for parking. Summary of the invention

[0005] In order to improve the problem that when there is no vehicle placement plate on the current rotating platform, it is difficult for vehicles to pass through the front foundation pit and drive to the rear tower for parking, the present application provides an entry and exit platform for a double-tower three-dimensional parking garage.

[0006] The access platform of a double-tower three-dimensional parking garage provided in this application adopts the following technical solution:

[0007] A access platform for a double-tower three-dimensional parking garage comprises a front foundation pit with a front tower bottom, a rear foundation pit with a rear tower bottom, a front turntable installed in the front foundation pit, and a rear turntable installed in the rear foundation pit, wherein the front turntable and the rear turntable are both used for turning vehicles, a lifting floor and a lifting device are provided in the front foundation pit, a mounting opening is provided on the lifting floor, the front turntable is installed in the mounting opening, the lifting device is located at the bottom of the lifting floor, the lifting device is used to drive the lifting floor to move up and down so that the lifting floor is flush with the front turntable, and the vertical movement distance of the lifting floor is greater than the height of the front turntable.

[0008] By adopting the above technical solution, the parking room in the current tower is full of vehicles, and there is no parking plate on the front rotating platform in the front tower, so vehicles cannot pass directly through the front foundation pit. At this time, the lifting device is started to lift the lifting floor to the same height as the front rotating platform, fill the front foundation pit, so that the vehicles to be parked can drive on the lifting floor to pass through the front tower, and then drive to the parking plate of the rear rotating platform for parking, so that the double tower parking can operate effectively.

[0009] Optionally, the lifting device is located on one side of the front rotating table, and a guide structure is provided on the side of the front rotating table away from the lifting device. The guide structures are symmetrically arranged on both sides of the length direction of the lifting floor. The guide structure includes a guide frame and guide wheels. The guide frame is vertically fixed in the front foundation pit, and the guide wheels are rotatably installed at both ends of the length direction of the lifting floor. A guide groove is opened on one side of the guide frame close to the lifting floor along its own height direction, and the guide wheel is located in the guide groove and is rollingly connected to the guide groove.

[0010] By adopting the above technical solution, when the lifting platform moves in the vertical direction driven by the lifting device, the guide wheels installed on the lifting floor roll on the guide frame, thereby playing a role in motion guiding the movement of the lifting platform, and also playing a role in auxiliary support for the balance of the lifting floor.

[0011] Optionally, a lifting and lowering balancing structure is provided in the front foundation pit, and the lifting and lowering balancing structure is symmetrically arranged on both sides of the length direction of the lifting floor. The lifting and lowering balancing structure includes a first balancing gear, a second balancing gear and a lifting chain. The first balancing gear and the second balancing gear are rotatably installed on one side of the bottom of the lifting floor, and the first balancing gear is located between the lifting device and the front rotating table, and the second balancing gear is located between the guide structure and the front rotating table. The rotation axes of the first balancing gear and the second balancing gear are parallel. One end of the lifting chain is fixedly connected to the bottom surface of the front foundation pit close to the lifting device, and the other end of the lifting chain passes around the top of the first balancing gear, then passes around the bottom of the second balancing gear, and finally is fixedly connected to the top of the guide frame.

[0012] By adopting the above technical solution, since the lifting device is located on one side of the lifting floor to drive the lifting and lowering movement, if the other side of the lifting floor away from the lifting device lacks support, it will cause the center of gravity of the lifting floor to be unstable, and the lifting floor is prone to tilt or even overturn. Therefore, a lifting balance structure is set to play a lifting role on the side of the lifting floor away from the lifting device, so that the lifting floor can maintain a horizontal state during the up and down movement of the lifting floor, and the operation is more stable and reliable. At the same time, compared with installing lifting devices on both sides of the bottom of the lifting floor to drive the lifting floor, the structure of the lifting device on one side of the present application has lower construction costs and requires less space.

[0013] Optionally, an oblique support is fixedly provided on the side wall of the guide frame, and one end of the oblique support away from the guide frame is fixedly connected to the bottom surface of the front foundation pit.

[0014] By adopting the above technical solution, since the guide frame not only guides the movement of the lifting floor, but also mainly bears the tension of the lifting chain, the setting of the oblique support is used to improve the structural stability of the guide frame, thereby ensuring the smooth operation of the lifting floor.

[0015] Optionally, a linkage structure is provided on the bottom surface of the lifting floor, the linkage structure includes a primary linkage structure, the primary linkage structure is located between the first balance gears on both sides of the length direction of the lifting floor, the primary linkage structure includes a primary mounting plate, a primary connecting plate and a primary linkage shaft, two primary mounting plates are provided, each of the primary mounting plates is fixedly arranged at the bottom of the lifting floor close to each first balance gear, the primary connecting plate is vertically fixed to a side of each primary mounting plate away from the lifting floor, the axial ends of the primary linkage shaft are vertically penetrated through each primary connecting plate and are rotatably connected to each primary connecting plate, and one end of the primary linkage shaft passing through the primary connecting plate is fixedly connected to the center of the first balance gear.

[0016] By adopting the above technical solution, the first balancing gears on both sides of the length direction of the lifting floor can be synchronously transmitted, reducing the transmission error of the lifting balancing structure when the lifting floor moves up and down, and improving the reliability of the transmission process of the lifting balancing structure.

[0017] Optionally, the linkage structure includes a secondary linkage structure, which is located between the second balance gears on both sides of the length direction of the lifting floor, and the secondary linkage structure includes a secondary mounting plate, a secondary connecting plate and a secondary linkage shaft. Two secondary mounting plates are provided, and each secondary mounting plate is fixedly arranged at the bottom of the lifting floor close to each second balance gear. The secondary connecting plate is vertically fixed to a side of each secondary mounting plate away from the lifting floor, and both axial ends of the secondary linkage shaft are vertically penetrated through each secondary connecting plate and are rotatably connected to each secondary connecting plate, and one end of the secondary linkage shaft passing through the primary connecting plate is fixedly connected to the center of the second balance gear.

[0018] By adopting the above technical solution, the second balancing gears on both sides of the length direction of the lifting floor can be transmitted synchronously, further reducing the transmission error of the lifting balancing structure when the lifting floor moves up and down, and further improving the reliability of the transmission process of the lifting balancing structure.

[0019] Optionally, both ends of the lifting chain are provided with a connecting structure, the connecting structure includes a connecting rod, a first connecting nut and a second connecting nut, connecting plates are fixed to the top of the guide frame and the bottom of the front foundation pit, the connecting rod is vertically passed through each connecting plate, one end of the connecting rod is fixedly connected to the lifting chain, the first connecting nut and the second connecting nut are both sleeved on the connecting rod and threadedly connected to the connecting rod, each of the connecting plates is located between the first connecting nut and the second connecting nut, and the first connecting nut and the second connecting nut are both tightly fixed to the connecting plate.

[0020] By adopting the above technical solution, the connection stability between the lifting chain and the guide frame and the bottom of the foundation pit is improved, which is convenient for installation; at the same time, when the lifting chain may become loose during long-term operation of the lifting and balancing structure, the staff can keep the lifting chain taut by turning the first connecting nut and the second connecting nut, thereby allowing the lifting and balancing structure to operate well.

[0021] Optionally, a support plate is vertically fixed on the top of the lifting device, and the support plate is inserted into the interior of the lifting floor. Clamps are provided on both sides of the support plate, and the clamps are fixedly connected to the lifting floor. A locking bolt is passed through the support plate, and the locking bolt passes through the clamp and the support plate. A locking nut is threadedly connected to one end of the locking bolt.

[0022] By adopting the above technical solution, the connection stability between the lifting device and the lifting floor is improved, thereby ensuring that the lifting device has a good lifting and driving effect on the lifting floor.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a lifting floor and a lifting device, the vehicle to be parked can drive on the lifting floor to pass through the front tower, and then drive to the parking plate of the rear rotating platform for parking, so that the double-tower parking can operate effectively;

[0025] 2. By setting up a lifting balance structure, the lifting floor can maintain a horizontal state during the up and down movement, and the operation is more stable and reliable;

[0026] 3. By setting the guide structure, it plays a role in motion guidance for the up and down movement of the lifting platform, and also plays an auxiliary supporting role for the balance of the lifting floor. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an entrance and exit platform of a double-tower three-dimensional parking garage in an embodiment of the present application.

[0028] Figure 2 is along Figure 1 Section view along line AA.

[0029] Figure 3 It is a schematic diagram to reflect the internal structure of the former foundation pit.

[0030] Figure 4 yes Figure 3 A partial enlarged view of area A in the middle.

[0031] Figure 5 yes Figure 3 A partial enlarged view of area B in the middle.

[0032] Figure 6 It is a partial schematic diagram to reflect the lifting and balancing structure.

[0033] Figure 7 It is a schematic diagram of the overall structure of the front tower and rear tower parking garage in the embodiment of the present application.

[0034] Figure 8 It is a schematic diagram of the exploded structure of each component on the lifting platform in the embodiment of the present application.

[0035] Fig. 9 yes Figure 7 A partial enlarged view of area A in the middle.

[0036] Fig.10 It is a schematic diagram of the exploded structure of the fixing device in the embodiment of the present application.

[0037] Fig.11 It is a schematic diagram of the exploded structure between the limiting device, the taking-out device, the transverse moving device and the first rolling frame in the embodiment of the present application.

[0038] Fig.12It is a schematic diagram of a partial explosion structure of a limiting device and a taking-out device in an embodiment of the present application.

[0039] Fig.13 yes Fig.12 A partial enlarged view of area B in the middle.

[0040] Fig.14 It is a schematic diagram of the structure of the transverse shifting device in the embodiment of the present application.

[0041] Explanation of the reference numerals: 1. front foundation pit; 17. front rotating table; 2. lifting floor; 21. mounting port; 22. fixed floor; 3. linkage structure; 31. primary linkage structure; 311. primary mounting plate; 312. primary connecting plate; 313. primary linkage shaft; 32. secondary linkage structure; 321. secondary mounting plate; 322. secondary connecting plate; 323. secondary linkage shaft; 4. guide structure; 41. guide frame; 411. guide groove; 42. guide wheel; 43. oblique support; 5. lifting balance structure; 51. first balance gear; 52. second balance gear; 53. lifting chain; 54. connecting structure; 541. connecting rod; 542. connecting plate; 543. first connecting screw nut; 544, second connecting nut; 6, lifting device; 61, support plate; 62, clamping plate; 63, locking bolt; 64, locking nut; 7, rear foundation pit; 71, rear rotating table; 8, vehicle plate; 81, limit groove; 82, clamping plate; 9, warehouse body; 91, vehicle room; 10, carrier; 101, guide column; 1011, guide groove; 102, bracket; 1021, guide wheel; 11, support platform; 111, second rolling frame; 1111, second transport roller; 1112, second guide roller; 12, lifting platform; 121, first rolling frame; 1211, first transport roller; 1212, first guide roller; 13, fixing device; 131, fixing latch; 132, oil cylinder; 1 33, bearing seat; 134, latch slot; 135, mounting block; 136, sliding port; 14, removal device; 141, removal motor; 142, removal chain; 143, removal gear; 144, first linkage shaft; 145, tensioning structure; 1451, tensioning rod; 1452, first tensioning nut; 1453, second tensioning nut; 146, tensioning connecting plate; 15, limiting device; 151, limiting bracket; 1511, removal slot; 152, limiting block; 1521, arc surface; 1522, buffer block; 153, telescopic assembly; 1531, linkage plate; 1532, horizontal plate; 1533, vertical plate; 1534, spring; 1535, first limiting mounting plate; 1 536. Second limit mounting plate; 1537. First boat-shaped plate; 1538. Second boat-shaped plate; 1539. Trigger rod; 154. Reed switch; 155. Induction magnet; 156. Elastic force adjustment structure; 1561. Adjustment rod; 1562. First adjustment nut; 1563. Second adjustment nut; 16. Transverse movement device; 161. Transverse movement bracket; 1611. Take-out wheel; 162. Transmission mechanism; 1621. Transmission gear; 1622. Transmission chain; 1623. Transmission motor; 1624. Second linkage shaft; 163. Hook plate; 1631. First hook plate; 1632. Second hook plate; 1633. Third hook plate; 1634. Positioning hook plate; 164. Limit switch. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-14 This application is described in further detail.

[0043] The present application embodiment discloses an access platform for a double-tower three-dimensional parking garage. Figure 1 An access platform of a double-tower three-dimensional parking garage includes a front foundation pit 1 with a front tower bottom, a rear foundation pit 7 with a rear tower bottom, a front rotating platform 17 installed in the front foundation pit 1, and a rear rotating platform 71 installed in the rear foundation pit 7. A lifting floor 2 is arranged in the front foundation pit 1, a square installation opening 21 is arranged in the middle of the lifting floor 2, and the front rotating platform 17 is installed in the installation opening 21. Both the front rotating platform 17 and the rear rotating platform 71 are used for turning of vehicles. Fixed floors 22 are arranged on both sides of the lifting floor 2 in the length direction, and the fixed floors 22 are welded and fixed to the side walls of the front foundation pit 1.

[0044] Reference Figure 2 and Figure 3 A lifting device 6 is provided at the bottom of the lifting floor 2. In this embodiment, the lifting device 6 is a scissor-type lift. The lifting device 6 is located on one side of the length direction of the front foundation pit 1. The lifting device 6 is used to drive the lifting floor 2 to move in the vertical direction. The lifting device 6 can drive the lifting floor 2 to move upward until it is flush with the front rotating table 17. The moving distance of the lifting floor 2 in the vertical direction is greater than the height of the front rotating table 17. Therefore, when the front rotating table 17 needs to rotate, the lifting floor 2 drops to the bottom of the front rotating table 17, so that the lifting floor 2 will not interfere with the rotation of the front rotating table 17.

[0045] Reference Figure 3 and Figure 4 A support plate 61 is vertically fixed to the top surface of the lifting device 6. The support plate 61 is located at both ends of the lifting device 6 in the length direction. The support plate 61 is inserted into the inside of the lifting floor 2. Clamps 62 are fitted on both sides of the support plate 61. The clamps 62 are welded and fixed to the lifting floor 2. A locking bolt 63 is passed through the support plate 61. The locking bolt 63 passes through the clamps 62 and the support plate 61. One end of the locking bolt 63 is threadedly connected with a locking nut 64. Tightening the locking nut 64 fixes the clamps 62 and the support plate 61, thereby improving the stability of the connection between the lifting device 6 and the lifting floor 2.

[0046] Reference Figure 2 and Figure 5, guide structures 4 are provided at both ends of the front foundation pit 1 away from the lifting device 6 to guide the up and down movement of the lifting floor 2. The guide structure 4 includes a guide frame 41 and a guide wheel 42. The guide frame 41 is vertically fixed to the bottom surface of the front foundation pit 1. A guide groove 411 is provided on one side of the guide frame 41, and the guide groove 411 extends in the vertical direction. The side wall of the guide frame 41 is welded and fixed to the oblique support 43 to improve the stability of the guide frame 41 structure. The guide wheel 42 is rotatably installed on one side of the bottom surface of the lifting floor 2 in the length direction and extends out of the lifting floor 2. The guide wheel 42 is located in the guide groove 411 and is rollingly connected to the guide groove 411.

[0047] Reference Figure 2 and Figure 6 , a lifting balance structure 5 is installed at the bottom of both ends of the lifting floor 2 in the length direction, and the lifting balance structure 5 includes a first balance gear 51, a second balance gear 52 and a lifting chain 53. The first balance gear 51 is installed on the bottom surface of the lifting floor 2 close to the lifting device 6. The second balance gear 52 is installed on the bottom surface of the lifting floor 2 away from the lifting device 6. The rotation axes of the first balance gear 51 and the second balance gear 52 are parallel. One end of the lifting chain 53 is fixedly connected to the bottom surface of the front foundation pit 1 close to the lifting device 6. The other end of the lifting chain 53 bypasses from the top of the first balance gear 51, then bypasses from the bottom of the second balance gear 52, and finally is fixedly connected to the top of the guide frame 41. The first balance gear 51 and the second balance gear 52 are both meshed with the lifting chain 53 for transmission. When the lifting floor 2 moves in the vertical direction driven by the lifting device 6, the lifting chain 53 generates an upward pulling force on the second balance gear 52, so that the lifting floor 2 maintains a balanced state during movement.

[0048] Reference Figure 5 and Figure 6, both ends of the lifting chain 53 are provided with connecting structures 54, so that the staff can install the two ends of the lifting chain 53 on the guide frame 41 and the bottom surface of the front foundation pit 1. The connecting structure 54 includes a connecting rod 541, a first connecting nut 543 and a second connecting nut 544, and a connecting plate 542 is fixed to the top of the guide frame 41 and the bottom of the front foundation pit 1, the connecting rod 541 is vertically penetrated on each connecting plate 542, one end of the connecting rod 541 is welded and fixed to one end of the lifting chain 53, the first connecting nut 543 and the second connecting nut 544 are both sleeved on the connecting rod 541 and threadedly connected to the connecting rod 541, and each connecting plate 542 is located between the first connecting nut 543 and the second connecting nut 544. The staff tightens the first connecting nut 543 and the second connecting nut 544 so that the first connecting nut 543 and the second connecting nut 544 are pressed against the connecting plate 542, so that the two ends of the lifting chain 53 remain fixed. When the lifting chain 53 becomes loose during long-term transmission, the lifting chain 53 can be kept in a tensioned state by rotating and tightening the first connecting nut 543 and the second connecting nut 544, so that the lifting balance structure 5 can operate well.

[0049] Reference Figure 2 and Figure 6 The bottom surface of the lifting floor 2 is provided with a linkage structure 3, so that the lifting balance structures 5 on both sides of the length direction of the lifting floor 2 can operate synchronously. The linkage structure 3 includes a primary linkage structure 31 and a secondary linkage structure 32. The primary linkage structure 31 is located between the first balance gears 51 on both sides of the length direction of the lifting floor 2. The primary linkage structure 31 includes a primary mounting plate 311, a primary connecting plate 312 and a primary linkage shaft 313. There are two primary mounting plates 311, and each primary mounting plate 311 is fixedly arranged at the bottom of the lifting floor 2 near each first balance gear 51. The primary connecting plate 312 is vertically fixed on the bottom surface of each primary mounting plate 311. There are two primary connecting plates 312 located on the bottom surface of each primary mounting plate 311, and the two primary connecting plates 312 are parallel. The two ends of the primary linkage shaft 313 are vertically penetrated on each primary connecting plate 312 and are rotatably connected with each primary connecting plate 312. One end of the primary linkage shaft 313 passing through the primary connecting plate 312 is fixedly connected to the center of the first balance gear 51.

[0050] Reference Figure 2 and Figure 5The secondary linkage structure 32 is located between the second balance gears 52 on both sides of the length direction of the lifting floor 2. The secondary linkage structure 32 includes a secondary mounting plate 321, a secondary connecting plate 322 and a secondary linkage shaft 323. Two secondary mounting plates 321 are provided, each of which is fixedly arranged at the bottom of the lifting floor 2 near each second balance gear 52. The secondary connecting plate 322 is vertically fixed to the bottom surface of each secondary mounting plate 321. Two secondary connecting plates 322 are provided on the bottom surface of each secondary mounting plate 321, and the two secondary connecting plates 322 are parallel. The two ends of the secondary linkage shaft 323 are vertically penetrated on each secondary connecting plate 322 and are rotatably connected with each secondary connecting plate 322. One end of the secondary linkage shaft 323 passing through the primary connecting plate 312 is fixedly connected to the center of the second balance gear 52. When the first balance gear 51 and the second balance gear 52 located on one side of the lifting floor 2 in the length direction rotate, the other side of the lifting floor 2 in the length direction also rotates synchronously through the primary linkage shaft 313 and the secondary linkage shaft 323, thereby reducing the transmission error of the lifting balance structure 5 when the lifting floor 2 moves up and down.

[0051] Reference Figure 7 and Figure 8 The front tower parking garage and the rear tower parking garage have the same structure, and both include a garage body 9, a carrier 10 and a transverse shifting device 16. The carrier 10 includes a lifting platform 12, on which a parking plate 8 is horizontally arranged. The parking plate 8 is used to carry parked vehicles. The lifting platform 12 can drive the parking plate 8 to move in the vertical direction. Several layers of parking chambers 91 are arranged in the garage body 9, and the several layers of parking chambers 91 are symmetrically arranged on both sides of the lifting platform 12. The parking chambers 91 are areas for temporary parking of vehicles. A support platform 11 is arranged on the parking chambers 91 for carrying the parking plates 8 and vehicles. The transverse shifting device 16 is installed on the lifting platform 12. When the lifting platform 12 lifts the parking plate 8 to one side of the parking chamber 91, the transverse shifting device 16 pushes the parking plate 8 and the vehicle parked on the parking plate 8 to the support platform 11 in the parking chamber 91.

[0052] Reference Fig. 9 and Fig.10 The carrier 10 also includes a corbel 102 and a guide column 101. The corbel 102 is welded and fixed at the four corners of the lifting platform 12. The guide column 101 is vertically arranged at the four corners of the lifting platform 12. The lifting platform 12 is connected to the guide column 101 through the corbel 102. Two guide wheels 1021 are rotatably connected to each corbel 102. Each guide column 101 is provided with a guide groove 1011 along its vertical direction. The two guide wheels 1021 are both located in the guide groove 1011, and the rolling circumference of the guide wheel 1021 is in contact with the bottom surface of the guide groove 1011.

[0053] Reference Fig. 9 and Fig.10A mounting block 135 is welded and fixed on the outer wall of the bracket 102, and a fixing device 13 is installed on the mounting block 135. The fixing device 13 includes a fixing pin 131, a cylinder 132 and a bearing seat 133. The cylinder 132 is bolted to the side wall of the mounting block 135. A sliding opening 136 is provided on the side of the mounting block 135 close to the cylinder 132. The piston rod of the cylinder 132 is inserted into the sliding opening 136, and one end of the piston rod of the cylinder 132 is welded and fixed to the fixing pin 131. The bearing seat 133 is fixedly arranged on the support platform 11. A pin slot 134 is provided on the side of the bearing seat 133 close to the fixing pin 131. When the lifting platform 12 is lifted in the vertical direction to the same height as the supporting platform 11, the oil cylinder 132 is started, pushing the piston rod of the oil cylinder 132 to move closer to the bearing seat 133, so that the fixed pin 131 is inserted into the pin slot 134. At this time, there is a gap between the fixed pin 131 and the pin slot 134 to reduce collision damage caused by hard contact between the two. The end of the fixed pin 131 inserted into the pin slot 134 adopts a pointed structure to facilitate insertion.

[0054] Reference Figure 8 and Fig. 9 , first rolling frames 121 are provided at both ends of the lifting platform 12 in the length direction, and the first rolling frames 121 are located at the bottom surfaces of both ends of the vehicle placement plate 8 in the length direction, and a plurality of first transport rollers 1211 are rotatably connected in the first rolling frames 121, and the plurality of first transport rollers 1211 are evenly arranged along the length direction of the first rolling frames 121, and the circumferences of the plurality of first transport rollers 1211 abut against the bottom surface of the vehicle placement plate 8. A plurality of first guide rollers 1212 are rotatably connected to the first rolling frames 121, and there may be three first guide rollers 1212, which are located at both ends of the vehicle placement plate 8 in the length direction, and the first guide rollers 1212 are evenly arranged along the length direction of the first rolling frames 121, and the circumferences of the first guide rollers 1212 abut against the two end surfaces of the vehicle placement plate 8 in the length direction.

[0055] Reference Figure 7 and Fig. 9A second rolling frame 111 is fixedly mounted on the support platform 11. The second rolling frame 111 is fixedly arranged at both ends of the length direction of the vehicle storage chamber 91. A plurality of second transport rollers 1111 are rotatably connected to the second rolling frame 111. The plurality of second transport rollers 1111 are evenly arranged along the length direction of the second rolling frame 111. The rotating circumferences of the first transport rollers 1211 and the second transport rollers 1111 are at the same horizontal height. A plurality of second guide rollers 1112 are rotatably connected to the second rolling frame 111. The plurality of second guide rollers 1112 may be three. The second guide rollers 1112 are arranged along the length direction of the second rolling frame 111. The plurality of first guide rollers 1212 and the plurality of second guide rollers 1112 located at both ends of the length direction of the vehicle storage plate 8 are in the same straight line. When the vehicle plate 8 moves from the lifting platform 12 to the supporting platform 11 , the circumferential surface of the second transport roller 1111 abuts against the bottom surface of the vehicle plate 8 , and the circumferential surface of the second guide roller 1112 abuts against the two end surfaces of the vehicle plate 8 in the length direction.

[0056] Reference Figure 8 and Fig.11 A limiting device 15 and a taking-out device 14 are provided between the vehicle plate 8 and the lifting platform 12. The limiting device 15 and the taking-out device 14 are both installed at both ends of the length direction of the lifting platform 12. The limiting device 15 is located between the transverse moving device 16 and the first rolling frame 121. The limiting device 15 is used to temporarily fix the vehicle plate 8 and the first rolling frame 121, so that the vehicle plate 8 is not easy to slide off the first rolling frame 121. The taking-out device 14 is located at the bottom of the limiting device 15. The output end of the taking-out device 14 is connected to the limiting device 15 to control the limiting device 15. At the same time, the taking-out device 14 is used to take out the transverse moving device 16, so that the transverse moving device 16 is connected to the vehicle plate 8, so that the transverse moving device 16 can transport the vehicle plate 8.

[0057] Reference Figure 8 and Fig.12The limiting device 15 includes a limiting bracket 151, a limiting block 152 and a telescopic assembly 153. The limiting bracket 151 is welded and fixed on the lifting platform 12. The limiting block 152 is connected to the telescopic assembly 153, and the telescopic assembly 153 is installed on the limiting bracket 151. The middle part of the side of the vehicle placement plate 8 close to the lifting platform 12 is upwardly protruded to form a limiting groove 81, and the limiting groove 81 is extended along the length direction of the vehicle placement plate 8. The telescopic assembly 153 is used to control the limiting block 152 to enter and exit the limiting groove 81. When the telescopic assembly 153 controls the limiting block 152 to enter the limiting groove 81, the limiting block 152 abuts against the inner side wall of the limiting groove 81 to limit the movement of the vehicle placement plate 8. The side of the limiting block 152 close to the bottom surface of the vehicle placement plate 8 is an arc surface 1521. The arc surface 1521 often rubs against the bottom surface of the vehicle placement plate 8, so a wear-resistant layer is provided on the arc surface 1521. One end surface of the limiting block 152 close to the inner wall of the limiting groove 81 often abuts and collides with the vehicle placement plate 8 , so a buffer block 1522 is embedded in one end of the limiting block 152 close to the inner wall of the limiting groove 81 .

[0058] Reference Fig.12 and Fig.13 The telescopic assembly 153 includes a linkage plate 1531, a spring 1534, a first position-limiting mounting plate 1535, a second position-limiting mounting plate 1536 and a first boat-shaped plate 1537. The linkage plate 1531 includes a horizontal plate 1532 and a vertical plate 1533, and the horizontal plate 1532 and the vertical plate 1533 are integrally formed. One end of the horizontal plate 1532 away from the vertical plate 1533 is connected to the spring 1534, and the horizontal plate 1532 is hinged to one end of the first position-limiting mounting plate 1535. The first position-limiting mounting plate 1535 is fixedly arranged on the position-limiting bracket 151, and the hinge point between the horizontal plate 1532 and the first position-limiting mounting plate 1535 is located between the spring 1534 and the vertical plate 1533. The upper surface of the horizontal plate 1532 is fixedly connected to the limit block 152, and the side wall of the vertical plate 1533 at one end away from the horizontal plate 1532 is fixedly connected with a trigger rod 1539. The trigger rod 1539 is located at one end in the length direction of the first boat-shaped plate 1537. The taking-out device 14 is connected to the first boat-shaped plate 1537, and is used to drive the first boat-shaped plate 1537 to move toward or away from the trigger rod 1539.

[0059] Reference Fig.12 and Fig.14 The end of the spring 1534 away from the horizontal plate 1532 is connected to the second limit mounting plate 1536, and the lower end of the second limit mounting plate 1536 away from the first limit mounting plate 1535 is fixedly connected to the second boat-shaped plate 1538, and the two ends of the second boat-shaped plate 1538 in the length direction are installed with reed switches 154. The side wall of the end of the vertical plate 1533 away from the horizontal plate 1532 is installed with an induction magnet 155 that matches the reed switch 154, and the induction magnet 155 is located on the side of the vertical plate 1533 away from the trigger rod 1539.

[0060] Reference Figure 8 and Fig.12 When the limit block 152 does not need to limit the vehicle plate 8, the taking-out device 14 is started, driving the first boat-shaped plate 1537 to move toward the trigger rod 1539 at one end, and the bottom surface of the first boat-shaped plate 1537 abuts against the circumference of the trigger rod 1539, driving the trigger rod 1539 to move downward, so that the limit block 152 is disengaged from the limit groove 81, so that the vehicle plate 8 can move. At the same time, the trigger rod 1539 drives the vertical plate 1533 to move downward, and then the vertical plate 1533 drives the induction magnet 155 to move toward the reed switch 154. The reed switch 154 detects the induction magnet 155 and controls the taking-out device 14 to stop driving.

[0061] Reference Fig.12 and Fig.14 An elastic force adjustment structure 156 is provided between the spring 1534 and the second position limiting mounting plate 1536 to adjust the tension of the spring 1534. The elastic force adjustment structure 156 includes an adjustment rod 1561, a first adjustment nut 1562 and a second adjustment nut 1563. One end of the spring 1534 away from the cross plate 1532 is connected to the adjustment rod 1561, the adjustment rod 1561 is penetrated on the second position limiting mounting plate 1536, the first adjustment nut 1562 and the second adjustment nut 1563 are both threadedly connected to the adjustment rod 1561, the second position limiting mounting plate 1536 is located between the first adjustment nut 1562 and the second adjustment nut 1563, and the first adjustment nut 1562 and the second adjustment nut 1563 are both in contact with the second position limiting mounting plate 1536. The first adjusting nut 1562 and the second adjusting nut 1563 are rotated to change the relative position of the adjusting rod 1561 and the second limiting mounting plate 1536 , thereby changing the stretching length of the spring 1534 , thereby adjusting the elastic force of the spring 1534 .

[0062] Reference Figure 8 and Fig.12 The taking-out device 14 includes a taking-out motor 141, a taking-out chain 142 and two taking-out gears 143. The two taking-out gears 143 are rotatably mounted in the lifting platform 12. The taking-out motor 141 is mounted on the lifting platform 12. The output end of the taking-out motor 141 is connected to one of the taking-out gears 143. The taking-out chain 142 surrounds the taking-out gear 143 and meshes with the taking-out gear 143. The taking-out chain 142 located above the axis of the taking-out gear 143 is connected to the first boat-shaped plate 1537. The taking-out motor 141 drives the taking-out gear 143 to rotate, and the rotation of the taking-out gear 143 drives the taking-out chain 142 to move, and then the taking-out chain 142 drives the first boat-shaped plate 1537 to move.

[0063] Reference Figure 8 and Fig.12The take-out gear 143 far from the take-out motor 141 is connected with a first linkage shaft 144, one end of the first linkage shaft 144 is fixedly connected to the take-out gear 143 at one end of the lifting platform 12 in the length direction, and the other axial end of the first linkage shaft 144 is fixedly connected to the take-out gear 143 at the other end of the lifting platform 12 in the length direction. The take-out devices 14 at both ends of the lifting platform 12 are linked by the first linkage shaft 144.

[0064] Reference Fig.12 and Fig.13 The removal chain 142 located at the upper end of the axis of the removal gear 143 is open-loop, and tensioning structures 145 are arranged at both ends of the open loop of the removal chain 142. The tensioning structure 145 includes a tensioning rod 1451 and a tensioning connecting plate 146. The tensioning connecting plate 146 is welded and fixed to the bottom surface of the first boat-shaped plate 1537 close to the removal chain 142. The removal chain 142 is fixedly connected to the tensioning rod 1451, and the tensioning rod 1451 is penetrated on the tensioning connecting plate 146. The tensioning rod 1451 is threadedly connected with a first tensioning nut 1452 and a second tensioning nut 1453. The tensioning connecting plate 146 is located between the first tensioning nut 1452 and the second tensioning nut 1453, and the first tensioning nut 1452 and the second tensioning nut 1453 are both in contact with the tensioning connecting plate 146.

[0065] Reference Figure 8 and Fig.14 The transverse moving device 16 includes a hook plate 163, a transverse moving bracket 161 and a transmission mechanism 162. The transmission mechanism 162 includes a transmission motor 1623, a transmission chain 1622 and two transmission gears 1621. The transmission gear 1621 is rotatably connected to the transverse moving bracket 161. The output end of the transmission motor 1623 is connected to one of the transmission gears 1621. The transmission chain 1622 surrounds the transmission gear 1621 and meshes with the transmission gear 1621 for transmission. A second linkage shaft 1624 is provided at one end of the transverse moving bracket 161 away from the transmission motor 1623. One axial end of the second linkage shaft 1624 is fixedly connected to the transmission gear 1621 located at one end of the lifting platform 12 in the length direction, and the other axial end of the second linkage shaft 1624 is fixedly connected to the transmission gear 1621 located at the other end of the lifting platform 12 in the length direction. The transverse moving devices 16 at both ends of the lifting platform 12 are linked by the second linkage shaft 1624.

[0066] Reference Figure 8 and Fig.14The hook plate 163 is fixedly installed on the outer circumference of the transmission chain 1622 by bolts and its initial position is located at both ends of the transmission chain 1622 close to the transmission gear 1621. The hook plate 163 includes a first hook plate 1631, a second hook plate 1632 and a third hook plate 1633. The first hook plate 1631 is located at one end of the transmission chain 1622 close to the transmission gear 1621, and the second hook plate 1632 and the third hook plate 1633 are symmetrically arranged on both sides of the first hook plate 1631. The second hook plate 1632 is connected to the transmission chain 1622 above the axis of the transmission gear 1621, and the third hook plate 1633 is connected to the transmission chain 1622 below the axis of the transmission gear 1621. Two clamping plates 82 are respectively arranged on both sides of the length direction of the vehicle placement plate 8, and the clamping plates 82 are symmetrically arranged along the central axis of the length direction of the vehicle placement plate 8. The taking-out device 14 moves the transverse moving device 16 to make the first hook plate 1631 contact with the clamping plate 82, and the transverse moving device 16 starts to move the opposing vehicle plate 8.

[0067] Reference Fig.11 and Fig.12 , the transverse moving bracket 161 is installed on the limiting bracket 151, and the transverse moving bracket 161 is rollingly connected with the limiting bracket 151. Among them, the limiting bracket 151 is located between the transverse moving bracket 161 and the first rolling frame 121, and the side wall of the transverse moving bracket 161 close to the limiting bracket 151 is rotatably connected with two taking-out wheels 1611. Correspondingly, a taking-out groove 1511 is provided on one side of the limiting bracket 151 close to the transverse moving bracket 161, and the taking-out wheel 1611 is located in the taking-out groove 1511. The transverse moving bracket 161 and the limiting bracket 151 are rollingly connected through the cooperation of the taking-out wheel 1611 and the taking-out groove 1511.

[0068] Reference Fig.11 and Fig.12 The middle part of the side wall of the transverse moving bracket 161 near the limiting device 15 is connected to the first boat-shaped plate 1537 by bolts, so that the taking-out device 14 drives the first boat-shaped plate 1537 to move, and the first boat-shaped plate 1537 drives the transverse moving bracket 161 to move, and the transverse moving device 16 is moved to the outside of the vehicle-placed plate 8. Subsequently, the transmission mechanism 162 of the transverse moving device 16 is started, and the first hook plate 1631 abuts against the clamping plate 82 on the vehicle-placed plate 8, thereby realizing the transverse movement of the vehicle-placed plate 8.

[0069] Reference Fig.12 and Fig.14Two positioning hook plates 1634 are fixedly installed on the outer circumferential surface of the transmission chain 1622, the middle part of the transmission chain 1622 above the axis of the transmission gear 1621 is connected to one positioning hook plate 1634, and the middle part of the transmission chain 1622 below the axis of the transmission gear 1621 is connected to the other positioning hook plate 1634, and a limit switch 164 is installed on the first limit mounting plate 1535, and the detection end of the limit switch 164 is aligned with the positioning hook plate 1634 relatively located above, and the limit switch 164 is electrically connected to the transmission motor 1623 to control the transmission stroke of the transmission chain 1622. When the transmission mechanism 162 is started, the transmission chain 1622 moves driven by the transmission gear 1621 and the transmission motor 1623. When the transmission chain 1622 rotates half a circle around the transmission gear 1621, the initial position relative to the positioning hook plate 1634 located above moves to the bottom, and the initial position relative to the positioning hook plate 1634 located below moves to the top. The limit switch 164 detects the position change of the positioning hook plate 1634, thereby controlling the transmission stroke of the transmission chain 1622.

[0070] The implementation principle of the access platform of a double-tower three-dimensional parking garage in the embodiment of the present application is as follows: when the parking chamber 91 in the front tower is in an empty state and the rear tower is in a full state, the carrier 10 in the front tower moves the parking plate 88 in one of the empty parking chambers 91 in the front tower to the front rotating table 17, and the vehicle drives onto the parking plate 88 of the front rotating table 17 and stops. At this time, the lifting floor 2 is located below the front rotating table 17 and does not interfere with the turning of the front rotating table 17. Subsequently, the front rotating table 17 is started to turn the vehicle on the parking plate 88 to facilitate the subsequent exit of the vehicle. Finally, the carrier 10 in the front tower is started to transport the support plate 61 on the front rotating table 17 to the parking chamber 91.

[0071] When the parking chamber 91 in the front tower is full and the parking chamber 91 in the rear tower is empty, the carrier 10 in the rear tower moves the parking plate 88 in one of the empty parking chambers 91 in the rear tower to the rear rotating platform 71. At this time, the front rotating platform 17 in the front tower has no parking plate 88, and the vehicle cannot directly pass through the front foundation pit 1. Therefore, the lifting device 6 is started to lift the lifting floor 2 to the same height as the front rotating platform 17. At this time, the vehicle to be parked can drive on the lifting floor 2 to pass through the front tower, and then drive to the parking plate 88 of the rear rotating platform 71 for parking. Then, the rear rotating platform is started to turn the vehicle on the parking plate 88 to facilitate the subsequent removal of the vehicle.

[0072] When the parking chambers 91 of the front tower and the rear tower are both in an empty state, the carrier 10 in the front tower moves the parking plate 88 in one of the empty parking chambers 91 in the front tower to the front rotating table 17, and the carrier 10 in the rear tower moves the parking plate 88 in one of the empty parking chambers 91 in the rear tower to the rear rotating table 71. The driver can drive the vehicle to any parking plate 88 on the front tower or the rear tower for parking. The rotation of the parking plate 88 drives the vehicle to turn, and then the parking plate 88 and the vehicle on the parking plate 88 are transported to the corresponding parking chamber 91 by the carrier 10.

[0073] If both the current tower and the rear tower are full, no vehicle can be parked.

[0074] The vehicle is parked on the parking plate 8, and the parking plate 8 moves vertically upward under the drive of the lifting platform 12. At this time, the guide wheel 1021 rolls in the guide groove 1011, guiding and limiting the movement of the lifting platform 12. When the lifting platform 12 moves to one side of the parking room 91 to be parked, the lifting platform 12 stops moving. Subsequently, the fixing device 13 is started, and the oil cylinder 132 drives the fixing pin 131 to move toward the pin groove 134, so that the fixing pin 131 is inserted into the pin groove 134, and the lifting platform 12 and the support platform 11 are connected and positioned. Subsequently, the taking-out device 14 is started, and the taking-out motor 141 drives the taking-out gear 143 to rotate, and the rotation of the taking-out gear 143 drives the taking-out chain 142 to move around the taking-out gear 143, thereby driving the first boat-shaped plate 1537 to move, and the first boat-shaped plate 1537 moves toward the trigger rod 1539, and the first boat-shaped plate 1537 abuts against the trigger rod 1539 and drives the trigger rod 1539 to move downward, and the trigger rod 1539 drives the linkage plate 1531 to rotate downward at the hinge point, thereby causing the limit block 152 to disengage from the limit slot 81. At the same time, the first boat-shaped plate 1537 drives the transverse moving bracket 161 to move, and the transverse moving bracket 161 rolls in the taking-out groove 1511 of the limit bracket 151 through the taking-out wheel 1611. When the magnetic ring switch senses the induction magnet 155, the taking-out device 14 stops running. At this time, the first hook plate 1631 of the transverse moving device 16 can effectively abut against the card plate 82. Then, the transverse moving device 16 is started, and the first hook plate 1631 drives the vehicle placing plate 8 to move into the vehicle placing chamber 91 until the limit switch 164 senses the limit switch 164 positioning hook plate 1634 again, and the transverse moving device 16 stops running. At this time, the vehicle placing plate 8 is pushed by the first hook plate 1631 to move smoothly along the first transport roller 1211 to the second transport roller 1111, and the first guide roller 1212 and the second guide roller 1112 guide and limit the movement of the vehicle placing plate 8 to make its movement more stable.

[0075] When the vehicle is taken out from the parking chamber 91, the lifting platform 12 is lifted to one side of the parking chamber 91 where the vehicle is to be taken out, and then the fixing device 13 is started, so that the fixing pin 131 is inserted into the pin slot 134, and the lifting platform 12 and the support platform 11 are connected and positioned, and the taking-out device 14 is started, driving the limiting device 15 to move the limiting block 152 close to the parking plate 8 downward, and the taking-out device 14 drives the transverse moving bracket 161 to move in the direction close to the parking plate 8, so that the first hook plate 1631 can effectively abut against the card plate 82, and then the transverse moving device 16 is started, and the parking plate 8 is pulled by the first hook plate 1631 and smoothly moves along the second transport roller 1111 to the first transport roller 1211, thereby completing the vehicle taking-out operation.

[0076] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An access platform for a double-tower three-dimensional parking garage, comprising a front foundation pit (1) provided at the bottom of a front tower, a rear foundation pit (7) provided at the bottom of a rear tower, a front rotating platform (11) installed in the front foundation pit (1), and a rear rotating platform (71) installed in the rear foundation pit (7), wherein the front rotating platform (11) and the rear rotating platform (71) are both used for turning of vehicles, and characterized in that: A lifting floor (2) and a lifting device (6) are provided in the front foundation pit (1); a mounting opening (21) is provided on the lifting floor (2); the front rotating platform (11) is mounted in the mounting opening (21); the lifting device (6) is located at the bottom of the lifting floor (2); the lifting device (6) is used to drive the lifting floor (2) to move up and down so that the lifting floor (2) is flush with the front rotating platform (11); and the moving distance of the lifting floor (2) in the vertical direction is greater than the height of the front rotating platform (11); The lifting device (6) is located on one side of the front rotating platform (11); a guide structure (4) is provided on the side of the front rotating platform (11) away from the lifting device (6); the guide structure (4) is symmetrically arranged on both sides of the length direction of the lifting floor (2); the guide structure (4) comprises a guide frame (41) and a guide wheel (42); the guide frame (41) is vertically fixed in the front foundation pit (1); the guide wheel (42) is rotatably mounted on both ends of the length direction of the lifting floor (2); a guide groove (411) is provided on a side of the guide frame (41) close to the lifting floor (2) along its own height direction; the guide wheel (42) is located in the guide groove (411) and is rollingly connected to the guide groove (411); An oblique support (43) is fixedly provided on the side wall of the guide frame (41), and one end of the oblique support (43) away from the guide frame (41) is fixedly connected to the bottom surface of the front foundation pit (1).

2. The access platform of the double-tower three-dimensional parking garage according to claim 1, characterized in that: A lifting balance structure (5) is arranged in the front foundation pit (1). The lifting balance structure (5) is symmetrically arranged on both sides of the lifting floor (2) in the length direction. The lifting balance structure (5) comprises a first balance gear (51), a second balance gear (52) and a lifting chain (53). The first balance gear (51) and the second balance gear (52) are rotatably mounted on one side of the bottom of the lifting floor (2), and the first balance gear (51) is located between the lifting device (6) and the front rotating platform (11). The second balance gear (52) is located between the guide structure (4) and the front rotating platform (11). The rotation axes of the first balance gear (51) and the second balance gear (52) are parallel. One end of the lifting chain (53) is fixedly connected to the bottom surface of the front foundation pit (1) close to the lifting device (6), and the other end of the lifting chain (53) is passed around the top of the first balance gear (51), then passed around the bottom of the second balance gear (52), and finally fixedly connected to the top of the guide frame (41).

3. The access platform of the double-tower three-dimensional parking garage according to claim 2, characterized in that: The bottom surface of the lifting floor (2) is provided with a linkage structure (3), the linkage structure (3) comprising a primary linkage structure (31), the primary linkage structure (31) being located between the first balance gears (51) on both sides of the lifting floor (2) in the length direction, the primary linkage structure (31) comprising a primary mounting plate (311), a primary connecting plate (312) and a primary linkage shaft (313), two primary mounting plates (311) are provided, each of the primary mounting plates (311) is fixedly arranged at the bottom of the lifting floor (2) close to each first balance gear (51), the primary connecting plate (312) is vertically fixed to a side of each primary mounting plate (311) away from the lifting floor (2), the axial ends of the primary linkage shaft (313) are vertically penetrated on each primary connecting plate (312) and are rotatably connected to each primary connecting plate (312), and one end of the primary linkage shaft (313) passing through the primary connecting plate (312) is fixedly connected to the center of the first balance gear (51).

4. The access platform of the double-tower three-dimensional parking garage according to claim 3 is characterized in that: The linkage structure (3) comprises a secondary linkage structure (32), the secondary linkage structure (32) being located between the second balance gears (52) on both sides of the lifting floor (2) in the length direction, the secondary linkage structure (32) comprising a secondary mounting plate (321), a secondary connecting plate (322) and a secondary linkage shaft (323), two secondary mounting plates (321) are provided, each of the secondary mounting plates (321) is fixedly arranged at the bottom of the lifting floor (2) close to each second balance gear (52), the secondary connecting plate (322) is vertically fixed to a side of each secondary mounting plate (321) away from the lifting floor (2), two axial ends of the secondary linkage shaft (323) are vertically penetrated on each secondary connecting plate (322) and are rotatably connected to each secondary connecting plate (322), and one end of the secondary linkage shaft (323) passing through the primary connecting plate (312) is fixedly connected to the center of the second balance gear (52).

5. The access platform of the double-tower three-dimensional parking garage according to claim 2, characterized in that: Both ends of the lifting chain (53) are provided with a connecting structure (54), and the connecting structure (54) includes a connecting rod (541), a first connecting nut (543) and a second connecting nut (544). The top of the guide frame (41) and the bottom of the front foundation pit (1) are fixedly installed with a connecting plate (542). The connecting rod (541) is vertically penetrated on each connecting plate (542), and one end of the connecting rod (541) is fixedly connected to the lifting chain (53). The first connecting nut (543) and the second connecting nut (544) are both sleeved on the connecting rod (541) and threadedly connected to the connecting rod (541). Each connecting plate (542) is located between the first connecting nut (543) and the second connecting nut (544), and the first connecting nut (543) and the second connecting nut (544) are both tightly fixed to the connecting plate (542).

6. The access platform of the double-tower three-dimensional parking garage according to claim 1, characterized in that: A support plate (61) is vertically fixed on the top of the lifting device (6), and the support plate (61) is inserted into the interior of the lifting floor (2). Clamps (62) are arranged on both sides of the support plate (61), and the clamps (62) are fixedly connected to the lifting floor (2). A locking bolt (63) is passed through the support plate (61), and the locking bolt (63) passes through the clamp (62) and the support plate (61), and one end of the locking bolt (63) is threadedly connected to a locking nut (64).

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