Double-layer parking system suitable for single-layer parking AGVs

Abstract

This utility model discloses a double-layer parking system suitable for single-layer parking AGVs, including a steel structure frame, a ground parking space rack, a lifting parking space assembly, and a lifting power assembly. The steel structure frame includes columns and beams mounted on the columns. The ground parking space rack is located on the ground inside the steel structure frame and supports the wheels of vehicles on the first layer. The ground parking space rack includes several fixed crossbars arranged at intervals. The lifting parking space assembly includes a lifting parking space rack capable of lifting and lowering, which supports the wheels of vehicles on the second layer. The lifting parking space rack includes several lifting crossbars arranged at intervals, which are staggered with the fixed crossbars. The lifting power assembly is mounted on the steel structure frame and provides power for the lifting and lowering movement of the lifting parking space rack. This system increases the number of parking spaces while solving the problem of single-layer parking AGVs being unable to achieve three-dimensional parking, thus improving the storage and retrieval efficiency of the parking garage.

Description

Technical Field

[0001] This utility model relates to the field of intelligent parking, and in particular to a double-layer parking system suitable for single-layer parking AGVs. Background Technology

[0002] Current intelligent parking systems use AGVs (Automated Guided Vehicles) to move vehicles within the parking garage. Single-level parking AGVs typically operate only within a flat surface, moving vehicles from one location to another. Therefore, the only way to increase parking spaces is by reducing the area where cars can travel. However, this method offers very limited space additions, and the frequent vehicle relocation by single-level parking AGVs results in long waiting times for users, leading to very low overall parking garage efficiency. Utility Model Content

[0003] The problem solved by this invention is to provide a double-layer parking system suitable for single-layer parking AGVs.

[0004] This utility model provides a double-layer parking system suitable for single-layer parking AGVs, comprising:

[0005] A steel frame structure, including columns and beams mounted on the columns;

[0006] A ground parking space rack is installed on the ground inside the steel structure frame to support the wheels of vehicles on the first floor. The ground parking space rack includes several fixed crossbars arranged at intervals.

[0007] A lifting parking space assembly includes a lifting parking space frame capable of lifting movement, the lifting parking space frame being used to support the wheels of vehicles on the second floor, the lifting parking space frame including a plurality of spaced-apart lifting crossbars, the lifting crossbars being staggered with the fixed crossbars;

[0008] A lifting power assembly, mounted on the steel structure frame, is used to provide power for the lifting movement of the lifting parking space frame.

[0009] In some embodiments, the double-layer parking system applicable to single-layer parking AGVs further includes a fall protection component, which includes a fall protection crossbar and a fall protection hook. The fall protection crossbar is fixed to the lifting parking space component, and the fall protection hook is disposed on the steel structure frame. The fall protection hook can switch between a first state and a second state. The first state is when the fall protection hook is on the lifting path of the fall protection crossbar, and the second state is when the fall protection hook is not on the lifting path of the fall protection crossbar.

[0010] In some embodiments, the lifting parking space assembly is configured as four groups, wherein the four lifting parking space frames are used to support the four wheels of a two-story vehicle; each group of the lifting parking space assembly further includes a connecting rod, a lifting arm, and a lifting screw; the connecting rod extends along the length direction of the vehicle, the lifting crossbar is fixedly connected to the bottom of the connecting rod, the connecting rod is fixedly connected to the lifting arm, the lifting screw is disposed in a threaded hole at the top of the lifting arm, and the lifting power assembly is drivenly connected to the lifting screw.

[0011] In some embodiments, the lifting parking space assembly further includes front and rear guide wheels and a lifting guide wheel disposed on the side wall of the lifting arm, the column is provided with a guide groove, the front and rear guide wheels and the lifting guide wheel are embedded in the guide groove, and the rotation axis of the front and rear guide wheels is perpendicular to the rotation axis of the lifting guide wheel.

[0012] In some embodiments, the columns are four in number and correspond one-to-one with the lifting parking space assembly. The beams include a front crossbeam, a rear crossbeam, and two longitudinal beams. The distance between the front crossbeam and the ground is less than the distance between the rear crossbeam and the ground. The lifting power assembly includes a lifting motor and two sets of lifting transmission assemblies. The lifting motor is fixed on the front crossbeam. The two sets of lifting transmission assemblies are respectively disposed on the two longitudinal beams and are connected to the output shaft of the lifting motor. The lifting transmission assemblies are connected to the lifting parking space assembly.

[0013] In some embodiments, the lifting power assembly further includes a drive sprocket, a driven sprocket, and a transmission rod. The drive sprocket is connected to the output shaft of the lifting motor, and the driven sprocket is connected to the drive sprocket via a chain. The driven sprocket is coaxially mounted on the transmission rod, and the transmission rod passes through two longitudinal beams. Each set of lifting transmission assemblies includes a first end sprocket, an intermediate sprocket, and a second end sprocket. The first end sprocket is coaxially mounted at the end of the transmission rod and is located at the front end of the longitudinal beam. The intermediate sprocket is located in the middle of the longitudinal beam, and the second end sprocket is located at the rear end of the longitudinal beam. The first end sprocket is connected to the intermediate sprocket via a chain, and the intermediate sprocket is connected to the second end sprocket via a chain. A first hanging chain is connected to both the first end sprocket and the second end sprocket, and the bottom of the first hanging chain is connected to the lifting screw.

[0014] In some embodiments, the longitudinal beam includes a steel beam body and a sprocket mounting plate and a transmission rod mounting plate fixed to the side of the steel beam body. The steel beam body is an I-beam. An mounting groove is formed between the side of the web of the steel beam body and the inner wall of the upper and lower flanges. The first end sprocket, the intermediate sprocket, and the second end sprocket are all disposed in the mounting groove.

[0015] In some embodiments, at least two anti-fall hooks are provided at the bottom of each longitudinal beam, and the hook portion of the anti-fall hook faces the guide groove of the column opposite to it; the anti-fall crossbar is fixed on the lifting arm and is located on the side of the lifting arm away from the guide groove.

[0016] In some embodiments, the column is an I-beam, and the guide groove is formed between the web of the I-beam and the inner wall surfaces of the upper and lower flanges. The diameter of the lifting guide wheel is equal to the distance between the inner wall surfaces of the upper and lower flanges of the column.

[0017] In some embodiments, when the number of the double-layer parking systems is greater than or equal to two, the two adjacent double-layer parking systems share the central column between them, and the guide grooves on both sides of the column are respectively directed toward the lifting arm of the lifting parking space assembly of each of the two double-layer parking systems.

[0018] The beneficial effects of this utility model are as follows: By setting up a liftable parking space frame, the liftable parking space frame is initially placed on the ground in its original position, and its lifting crossbar is staggered with the fixed crossbar of the ground parking space frame. After the single-layer parking AGV moves the vehicle onto the lifting crossbar and the fixed crossbar, the lifting power component drives the liftable parking space frame to rise to the preset position, while the ground parking space frame can still be used to park the next vehicle. In this way, the single-layer parking space is transformed into a double-layer parking space, and the number of parking spaces is increased from one to two. At the same time, it solves the problem that the single-layer parking AGV cannot achieve three-dimensional parking. Moreover, the time for the single-layer parking AGV to move the vehicle to the two parking spaces is the same, which improves the storage and retrieval efficiency of the garage. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 An overall structural diagram of a double-layer parking system suitable for single-layer parking AGVs provided in this embodiment of the utility model;

[0021] Figure 2 Another perspective overall structural diagram of a double-layer parking system suitable for single-layer parking AGVs provided in this embodiment of the utility model;

[0022] Figure 3 A structural diagram of the lifting parking space component in a double-layer parking system suitable for single-layer parking AGVs provided in this embodiment of the utility model;

[0023] Figure 4 The structural diagram of the steel frame (without columns and front crossbeam) and lifting power assembly in a double-layer parking system suitable for single-layer parking AGVs provided in this embodiment of the utility model.

[0024] Reference numerals: 1. Steel structure frame; 11. Front crossbeam; 12. Rear transverse beam; 13. Longitudinal beam; 131. Main steel beam; 132. Sprocket mounting plate; 133. Transmission rod mounting plate; 14. Column; 140. Guide groove; 2. Ground parking space frame; 21. Fixed crossbar; 22. Pad; 23. Fixed longitudinal bar; 3. Lifting parking space assembly; 31. Lifting parking space frame; 32. Connecting rod; 33. Lifting arm; 34. Lifting screw; 35. Mounting plate; 36. Front and rear guide wheels; 37. Lifting guide wheel; 4. Lifting power assembly; 41. Lifting motor; 42. Lifting transmission assembly; 43. Drive sprocket; 44. Driven sprocket; 45. Transmission rod; 5. Fall protection assembly; 51. Fall protection hook; 511. Connecting arm; 512. Hook-up part; 52. Fall protection crossbar. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and, or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and, or collections thereof.

[0027] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should also be further understood that the terms "and" and "or" as used in this specification and the appended claims refer to any combination of one or more of the associated listed items and all possible combinations, and include such combinations.

[0030] like Figures 1 to 4 As shown, this embodiment of the invention provides a double-layer parking system suitable for single-layer parking AGVs, wherein... Figure 1 An overall structural diagram of a double-layer parking system suitable for single-layer parking AGVs provided in this embodiment of the utility model; Figure 2 Another perspective overall structural diagram of a double-layer parking system suitable for single-layer parking AGVs provided in this embodiment of the utility model; Figure 3 A structural diagram of the lifting parking space component in a double-layer parking system suitable for single-layer parking AGVs provided in this embodiment of the utility model; Figure 4 The structural diagram of the steel frame (without columns and front crossbeam) and lifting power assembly in a double-layer parking system suitable for single-layer parking AGVs provided in this embodiment of the utility model.

[0031] See also Figures 1 to 4This utility model provides a double-layer parking system suitable for single-layer parking AGVs, which increases the number of parking spaces while solving the problem that single-layer parking AGVs (Automated Guided Vehicles) cannot achieve three-dimensional parking.

[0032] A double-layer parking system suitable for single-layer parking AGVs comprises a steel structure frame 1, a ground parking space rack 2, a lifting parking space assembly 3, and a lifting power assembly 4. The steel structure frame 1 serves two purposes: firstly, it delineates the parking space area within the plane; secondly, it provides installation positions for the lifting power assembly 4. The steel structure frame 1 may include columns 14 and beams mounted on the columns 14.

[0033] The ground parking rack 2 is installed on the ground inside the steel structure frame 1, within the area enclosed by multiple columns 14. The ground parking rack 2 supports the wheels of vehicles on the first floor and can be configured in four groups to support all four wheels. Each group of ground parking racks 2 includes several spaced-apart fixed crossbars 21. The fixed crossbars 21 can be directly fixed to the ground with screws, or pads 22 can be fixed to the ground first, and then the fixed crossbars 21 can be fixed to the pads 22. By setting spaced-apart fixed crossbars 21, the friction between the wheels and the ground parking rack 2 is increased, thereby preventing vehicles from rolling away in case of accidents. The lifting parking space assembly 3 includes a lifting parking space frame 31 capable of lifting and lowering. The lifting parking space frame 31 supports the wheels of vehicles on the second floor and is configured in four groups. Each group of lifting parking space frames 31 includes several spaced-apart lifting crossbars. These lifting crossbars are staggered with the fixed crossbars 21, so that when the lifting parking space frame 31 is not raised, the lifting crossbars can be inserted into the gaps between the fixed crossbars 21. This avoids increasing the area of ​​the parking space frame on top of the ground parking space frame 2, and also prevents the lifting parking space frame 31 from being too high on the ground, thus preventing the single-layer parking AGV from being unable to transport vehicles onto the lifting parking space frame 31 and avoiding raising the operating height of the single-layer parking AGV relative to the ground parking space frame 2 when placing vehicles. The lifting power assembly 4 is mounted on the steel structure frame 1, specifically on a beam, and provides power for the lifting and lowering movement of the lifting parking space frame 31.

[0034] By setting up a liftable parking space frame 31, the liftable parking space frame 31 is first placed on the ground, i.e., the original position, and its lifting crossbar is interleaved with the fixed crossbar 21 of the ground parking space frame 2. When the single-layer parking AGV moves the vehicle onto the lifting crossbar and the fixed crossbar 21, the lifting power component 4 drives the liftable parking space frame 31 to rise to the preset position, while the ground parking space frame 2 can still be used to park the next vehicle. In this way, the single-layer parking space is transformed into a double-layer parking space, and the number of parking spaces is increased from one to two, while solving the problem that the single-layer parking AGV cannot achieve three-dimensional parking.

[0035] Furthermore, compared to achieving double-layer parking through the parking AGV itself, which requires the AGV to lift and lower itself, a process that is time-consuming and results in longer waiting times for users to store and retrieve their vehicles, the solution adopted in this embodiment frees up the AGV and improves the parking garage's storage and retrieval efficiency.

[0036] When a vehicle needs to be retrieved from the second-level parking space, i.e., the lifting parking frame 31, the lifting power component 4 drives the lifting parking frame 31 to descend to its original position. This double-layer parking system does not require digging a pit in the ground; it only requires the installation of the column 14 and the ground parking frame 2. It is easy to implement and has a high space utilization rate. It only requires 3.3 meters to complete the double-layer parking of two cars with a height of 1.55 meters.

[0037] In one embodiment, the double-layer parking system suitable for single-layer parking AGVs further includes a fall protection component 5, which includes a fall protection crossbar 52 and a fall protection hook 51. The fall protection crossbar 52 is fixed on the lifting parking space component 3, and the fall protection hook 51 is disposed on the steel structure frame 1. The fall protection hook 51 can switch between a first state and a second state. The first state is when the fall protection hook 51 is on the lifting path of the fall protection crossbar 52, and the second state is when the fall protection hook 51 is not on the lifting path of the fall protection crossbar 52.

[0038] In this embodiment, the anti-fall hook 51 may include a vertical connecting arm 511 and an upwardly angled hook portion 512. The hook portion 512 is connected to the bottom end of the connecting arm 511. The connecting arm 511 can be hung on the steel structure frame 1 via an axle, thereby allowing the anti-fall hook 51 to swing around the axle. The first state is the initial state of the anti-fall hook 51. The anti-fall hook 51 can be held in the first state by gravity. When the lifting parking space assembly 3 rises, the anti-fall crossbar 52 rises together with the lifting parking space assembly 3. When it rises to contact the inclined outer side of the hook portion 512, the anti-fall crossbar 52 moves towards the hook portion 512. The lifting part 512 applies a horizontal component force to make the anti-fall hook 51 swing to the second state. After the anti-fall crossbar 52 continues to rise and disengages from the lifting part 512, the anti-fall hook 51 swings back to the first state. At this time, the anti-fall hook 51 returns to the state located on the lifting path of the anti-fall crossbar 52. The lifting part 512 of the anti-fall hook 51 is located directly below the anti-fall crossbar 52 to play the role of preventing falls. There can be four sets of anti-fall hooks 51 and anti-fall crossbars 52, which are located on one side of the four wheels of the vehicle to ensure that they can stably play the role of preventing falls.

[0039] In one embodiment, the lifting parking space assembly 3 is configured as four groups, wherein the four lifting parking space frames 31 are used to support the four wheels of the two-story vehicle; each group of the lifting parking space assembly 3 further includes a connecting rod 32, a lifting arm 33, and a lifting screw 34; the connecting rod 32 extends along the length direction of the vehicle, the lifting crossbar is fixedly connected to the bottom of the connecting rod 32, the connecting rod 32 is fixedly connected to the lifting arm 33, the lifting screw 34 is disposed in the threaded hole at the top of the lifting arm 33, and the lifting power assembly 4 is drivenly connected to the lifting screw 34.

[0040] In this embodiment, the ground parking space rack 2 may further include a fixed longitudinal bar 23 extending along the length of the vehicle, and a plurality of fixed crossbars 21 having one end fixedly connected to the fixed longitudinal bar 23 and perpendicular to the fixed longitudinal bar 23. The connecting rod 32 of the lifting parking space assembly 3 is parallel to the fixed longitudinal bar 23, that is, it also extends along the length of the vehicle, and a plurality of lifting crossbars have one end fixedly connected to the bottom of the connecting rod 32, which is perpendicular to the connecting rod 32. When the lifting crossbar is placed on the ground, the connecting rod 32 is located outside the lifting crossbar, and the fixed longitudinal bar 23 is located inside the lifting crossbar. Taking the two sets of lifting parking space components 3 on the left side of the vehicle as an example, the connecting rod 32 at the front left of the vehicle is connected to the connecting rod 32 at the rear left of the vehicle. Alternatively, they can be integrally formed. The lifting arm 33 is fixedly connected to the outside of the connecting rod 32 via the mounting plate 35. The lifting arm 33 at the front left of the vehicle is close to the front end of the connecting rod 32, and the lifting arm 33 at the rear left of the vehicle is close to the rear end of the connecting rod 32. On one hand, the lifting power component 4 transmits driving force to the two lifting arms 33 through the lifting screws 34 on the front and rear lifting arms 33. The connecting rod 32 connects the front and rear lifting arms 33 into a single unit, making the raising and lowering of the lifting parking space components 3 more stable. On the other hand, it brings the two lifting arms 33 close to the column 14 at the front left and the column 14 at the rear left, facilitating cooperation with the column 14. The description of the two sets of lifting parking space components 3 on the right side of the vehicle can be referenced from that of the two sets of lifting parking space components 3 on the left side, and will not be repeated here. The lifting power component 4 is connected to the four lifting screws 34, enabling it to smoothly drive the four sets of lifting parking space components 3 to rise and fall.

[0041] In one embodiment, the lifting parking space assembly 3 further includes front and rear guide wheels 36 and lifting guide wheels 37 disposed on the side wall of the lifting arm 33. The column 14 is provided with a guide groove 140, the front and rear guide wheels 36 and the lifting guide wheels 37 are embedded in the guide groove 140, and the rotation axis of the front and rear guide wheels 36 is perpendicular to the rotation axis of the lifting guide wheels 37.

[0042] In this embodiment, the lifting guide wheel 37 cooperates with the guide groove 140 to allow the lifting parking space assembly 3 to move straight up and down, ensuring the smoothness of the lifting of the lifting parking space assembly 3 and the vehicle. The front and rear guide wheels 36 reduce friction between the lifting arm 33 and the column 14, making the lifting of the lifting parking space assembly 3 and the vehicle smoother, reducing the time spent on lifting, and improving the user's experience in accessing and retrieving vehicles. The lifting guide wheel 37 also serves to reduce friction between the lifting arm 33 and the column 14.

[0043] In one embodiment, the columns 14 are four in number and correspond one-to-one with the lifting parking space assembly 3. The beams include a front crossbeam 11, a rear crossbeam, and two longitudinal beams 13. The distance between the front crossbeam 11 and the ground is less than the distance between the rear crossbeam and the ground. The lifting power assembly 4 includes a lifting motor 41 and two sets of lifting transmission assemblies 42. The lifting motor 41 is fixed on the front crossbeam 11. The two sets of lifting transmission assemblies 42 are respectively arranged on the two longitudinal beams 13 and are connected to the output shaft of the lifting motor 41. The lifting transmission assemblies 42 are connected to the lifting parking space assembly 3.

[0044] In this embodiment, the rear crossbeam is fixed to the top of the column 14, while the front crossbeam 11 is located in the area between the middle and the top of the column 14. The lifting motor 41 is fixed to the top of the front crossbeam 11. In this way, the overall height of the double-layer parking system can be reduced, saving the vertical space of the garage.

[0045] In one embodiment, the lifting power assembly 4 further includes a drive sprocket 43, a driven sprocket 44, and a transmission rod 45. The drive sprocket 43 is connected to the output shaft of the lifting motor 41. The driven sprocket 44 is connected to the drive sprocket 43 via a chain. The driven sprocket 44 is coaxially mounted on the transmission rod 45. The transmission rod 45 passes through both longitudinal beams 13. Each lifting transmission assembly 42 includes a first end sprocket (not shown in the figure), an intermediate sprocket (not shown in the figure), and a second end sprocket (not shown in the figure). The first end sprocket is coaxially mounted at the end of the transmission rod 45 and is located at the front end of the longitudinal beam 13. The intermediate sprocket is located in the middle of the longitudinal beam 13. The second end sprocket is located at the rear end of the longitudinal beam 13. The first end sprocket is connected to the intermediate sprocket via a chain, and the intermediate sprocket is connected to the second end sprocket via a chain. A first hanging chain is connected to both the first end sprocket and the second end sprocket. The bottom of the first hanging chain is connected to the lifting screw 34.

[0046] In this embodiment, when it is necessary to drive the lifting parking assembly 3 and the vehicle to rise, the lifting motor 41 drives the drive sprocket 43 to rotate. The drive sprocket 43 drives the driven sprocket 44 to rotate via a chain. The driven sprocket 44 drives the transmission rod 45 to rotate synchronously. The transmission rod 45 drives the first end sprockets at both ends to rotate synchronously. The rotation of the two first end sprockets drives the two first hanging chains on the front side of the vehicle to rise. At the same time, the two first end sprockets drive the two middle sprockets to rotate via a chain. The two middle sprockets then drive the two second end sprockets to rotate via a chain. The rotation of the two second end sprockets drives the two first hanging chains on the rear side of the vehicle to rise. In this way, four sets of lifting parking assemblies 3 and vehicles can be driven to rise by one motor. The middle sprockets play the role of reducing the stroke of a single chain to ensure the tension of each chain and thus ensure the synchronicity of the transmission. When the lifting parking assembly 3 and the vehicle rise to the preset position, the lifting motor 41 locks to stop the lifting parking assembly 3 and the vehicle at the preset position. Furthermore, the lifting transmission assembly 42 is designed as a modular unit, allowing all parts to be installed on the longitudinal beam 13 in the factory. This design allows for flexible arrangement based on site conditions; and in terms of installation, it significantly reduces on-site assembly work and accelerates on-site construction efficiency.

[0047] When it is necessary to drive the lifting parking assembly 3 and the vehicle to descend, the lifting motor 41 reverses to drive the lifting parking assembly 3 and the vehicle to descend. To prevent the anti-fall hook 51 from blocking the anti-fall bar 52 when the lifting parking assembly 3 and the vehicle are descending, the anti-fall hook 51 can be actively driven to swing to the second state by a drive device, after the lifting parking assembly 3 has descended to its original position. Thus, when driving the lifting parking assembly 3 from its original position to the preset position, the anti-fall hook 51 can also be actively driven to swing to the second state by the drive device. That is, the anti-fall hook 51 remains in the first state only when the lifting parking assembly 3 is in the preset position, so as to play the role of preventing falls.

[0048] In one embodiment, the longitudinal beam 13 includes a steel beam body 131 and a sprocket mounting plate 132 and a transmission rod mounting plate 133 fixed on the side of the steel beam body 131. The steel beam body 131 is an I-beam. An mounting groove is formed between the side of the web of the steel beam body 131 and the inner wall of the upper and lower flanges. The first end sprocket, the intermediate sprocket and the second end sprocket are all disposed in the mounting groove.

[0049] In this embodiment, the transmission rod 45 passes through the through holes of the transmission rod mounting plates 133 of the two longitudinal beams 13. The driven sprocket 44 is located on the outside of the transmission rod mounting plates 133. Three sprocket mounting plates 132 are provided, respectively located at the front end, middle, and rear end of the side of the steel beam body 131, to provide through holes for the first end sprocket, the intermediate sprocket, and the second end sprocket to mount their rotation shafts. In addition, the transmission rod mounting plates 133 and the sprocket mounting plates 132 can also cooperate with the mounting grooves to prevent the chain from falling off. Two adjacent double-layer parking systems can share the longitudinal beam 13 between them, i.e., the middle longitudinal beam 13. The mounting grooves on both sides of its web can be used to install the first end sprocket, the intermediate sprocket, and the second end sprocket of the two double-layer parking systems, respectively.

[0050] In one embodiment, at least two anti-fall hooks 51 are provided at the bottom of each of the longitudinal beams 13, and the hook portion 512 of the anti-fall hook 51 faces the guide groove 140 of the column 14 opposite to it; the anti-fall crossbar 52 is fixed on the lifting arm 33 and is provided on the side of the lifting arm 33 away from the guide groove 140.

[0051] In this embodiment, the anti-fall hooks 51 can be connected to the bottom of both ends of the longitudinal beam 13 via connecting plates, that is, the four anti-fall hooks 51 at the bottom of the two longitudinal beams 13 cooperate with the anti-fall crossbars 52 on the four lifting arms 33.

[0052] In one embodiment, the column 14 is an I-beam, and the guide groove 140 is formed between the web of the I-beam and the inner wall surface of the upper and lower flanges. The diameter of the lifting guide wheel 37 is equal to the distance between the inner wall surface of the upper and lower flanges of the column 14.

[0053] In this embodiment, the rotation axis of the lifting guide wheel 37 is perpendicular to the web of the column 14, the axis of the front and rear guide wheels 36 is perpendicular to the upper and lower flanges of the column 14, and the front and rear guide wheels 36 are in contact with the web of the column 14, thereby reducing the friction between the lifting arm 33 and the guide groove 140.

[0054] In one embodiment, when the number of the double-layer parking systems is greater than or equal to two, the two adjacent double-layer parking systems share the column 14 in the middle of them, and the guide grooves 140 on both sides of the column 14 are respectively directed toward the lifting arm 33 of the lifting parking space assembly 3 of each of the two double-layer parking systems.

[0055] In this embodiment, two adjacent double-layer parking systems are arranged in the left-right direction of the vehicle. The adjacent lifting arms 33 in the two adjacent double-layer parking systems are staggered front-to-back. Specifically, the front and rear guide wheels 36 and lifting guide wheels 37 on the lifting arms 33 of one double-layer parking system are located in the guide groove 140 on the front side of the web of the common column 14, while the front and rear guide wheels 36 and lifting guide wheels 37 on the lifting arms 33 of the other double-layer parking system are located in the guide groove 140 on the rear side of the web of the common column 14. This not only reduces the number of non-standard parts in manufacturing and avoids the risk of on-site installation errors, but also reduces the footprint. Furthermore, the structures mutually cancel out lateral forces, achieving multiple benefits.

[0056] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A double-layer parking system suitable for single-layer parking AGVs, characterized in that, include: A steel frame structure, including columns and beams mounted on the columns; A ground parking space rack is installed on the ground inside the steel structure frame to support the wheels of vehicles on the first floor. The ground parking space rack includes several fixed crossbars arranged at intervals. A lifting parking space assembly includes a lifting parking space frame capable of lifting and lowering, the lifting parking space frame supporting the wheels of vehicles on both levels, and the lifting parking space frame including a plurality of spaced-apart lifting crossbars, the lifting crossbars being alternately arranged with the fixed crossbars; and A lifting power assembly, mounted on the steel structure frame, is used to provide power for the lifting movement of the lifting parking space frame.

2. The double-layer parking system for single-layer parking AGVs according to claim 1, characterized in that, It also includes a fall protection component, which includes a fall protection crossbar and a fall protection hook. The fall protection crossbar is fixed to the lifting parking space component, and the fall protection hook is set on the steel structure frame. The fall protection hook can switch between a first state and a second state. The first state is when the fall protection hook is on the lifting path of the fall protection crossbar, and the second state is when the fall protection hook is not on the lifting path of the fall protection crossbar.

3. The double-layer parking system for single-layer parking AGVs according to claim 2, characterized in that, The lifting parking space assembly is configured in four groups, with four lifting parking space frames used to support the four wheels of a two-story vehicle; each group of the lifting parking space assembly also includes a connecting rod, a lifting arm, and a lifting screw; the connecting rod extends along the length of the vehicle, the lifting crossbar is fixedly connected to the bottom of the connecting rod, the connecting rod is fixedly connected to the lifting arm, the lifting screw is disposed in a threaded hole at the top of the lifting arm, and the lifting power assembly is drivenly connected to the lifting screw.

4. The double-layer parking system for single-layer parking AGVs according to claim 3, characterized in that, The lifting parking space assembly also includes front and rear guide wheels and lifting guide wheels disposed on the side wall of the lifting arm. The column is provided with a guide groove, and the front and rear guide wheels and the lifting guide wheels are embedded in the guide groove. The rotation axis of the front and rear guide wheels is perpendicular to the rotation axis of the lifting guide wheels.

5. The double-layer parking system for single-layer parking AGVs according to claim 3, characterized in that, The column is set to four, each corresponding to one of the lifting parking space components. The beam includes a front crossbeam, a rear crossbeam, and two longitudinal beams. The distance between the front crossbeam and the ground is less than the distance between the rear crossbeam and the ground. The lifting power component includes a lifting motor and two sets of lifting transmission components. The lifting motor is fixed on the front crossbeam. The two sets of lifting transmission components are respectively set on the two longitudinal beams and are connected to the output shaft of the lifting motor. The lifting transmission components are connected to the lifting parking space components.

6. The double-layer parking system for single-layer parking AGVs according to claim 5, characterized in that, The lifting power assembly further includes a drive sprocket, a driven sprocket, and a transmission rod. The drive sprocket is connected to the output shaft of the lifting motor. The driven sprocket is connected to the drive sprocket via a chain. The driven sprocket is coaxially mounted on the transmission rod, which passes through two longitudinal beams. Each lifting transmission assembly includes a first end sprocket, an intermediate sprocket, and a second end sprocket. The first end sprocket is coaxially mounted at the end of the transmission rod and at the front end of the longitudinal beam. The intermediate sprocket is located in the middle of the longitudinal beam, and the second end sprocket is located at the rear end of the longitudinal beam. The first end sprocket and the intermediate sprocket are connected via a chain, and the intermediate sprocket and the second end sprocket are connected via a chain. A first hanging chain is connected to both the first end sprocket and the second end sprocket, and the bottom of the first hanging chain is connected to the lifting screw.

7. The double-layer parking system for single-layer parking AGVs according to claim 6, characterized in that, The longitudinal beam includes a steel beam body and a sprocket mounting plate and a transmission rod mounting plate fixed on the side of the steel beam body. The steel beam body is an I-beam. An mounting groove is formed between the side of the web of the steel beam body and the inner wall of the upper and lower flanges. The first end sprocket, the intermediate sprocket and the second end sprocket are all disposed in the mounting groove.

8. The double-layer parking system for single-layer parking AGVs according to claim 5, characterized in that, At least two anti-fall hooks are provided at the bottom of each longitudinal beam, and the hook-up portion of the anti-fall hook faces the guide groove of the column opposite to it; the anti-fall crossbar is fixed on the lifting arm and is located on the side of the lifting arm away from the guide groove.

9. The double-layer parking system for single-layer parking AGVs according to claim 4, characterized in that, The column is an I-beam, and the guide groove is formed between the web and the inner wall of the upper and lower flanges of the I-beam. The diameter of the lifting guide wheel is equal to the distance between the inner wall of the upper and lower flanges of the column.

10. The double-layer parking system for single-layer parking AGVs according to claim 9, characterized in that, When there are two or more double-layer parking systems, the two adjacent double-layer parking systems share the central column, and the guide grooves on both sides of the column are respectively directed toward the lifting arm of the lifting parking space assembly of each of the two double-layer parking systems.

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