Lifting rolling wheel set and parking robot with same

Abstract

The utility model belongs to the field of machinery and intelligent parking, and provides a liftable rolling wheel set. The liftable rolling wheel set comprises a rolling wheel assembly, a fixing base, a linkage assembly and a lifting motor. The rolling wheels of one rolling wheel set are arranged in a row, and all the rolling wheels are connected together through rolling wheel connecting pieces. The linkage assembly comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is rotatably installed on the outer side of the rolling wheel connecting piece, the other end of the first connecting rod is rotatably connected with one end of the second connecting rod, the other end of the second connecting rod is rotatably connected with the third connecting rod, and the third connecting rod is rotatably connected with the rolling wheel connecting piece. The third connecting rod is fixedly connected with a push rod of the lifting motor, and the position, close to the second connecting rod, of the middle of the first connecting rod is rotatably installed on the fixing base. And the fixed seat and the lifting motor are fixedly mounted at the bottom of the frame respectively. The lifting of the chassis can be realized, and meanwhile, a large height space is not occupied.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical and intelligent parking, and relates to a liftable rolling wheel assembly and a parking robot having the same. Background Technology

[0002] With the rapid increase in the number of private cars, the demand for urban parking spaces is growing. On the one hand, there is a shortage of parking spaces, and on the other hand, parking lots are becoming increasingly large, causing people to spend a lot of time searching for parking spaces. To solve the parking problem, some smart parking lots use Automated Guided Vehicles (AGVs) to move cars to designated locations.

[0003] Existing parking robots primarily employ a one-piece structure, meaning the support component used to lift and move the car is a single unit. When a parking robot moves a vehicle without additional equipment, it typically needs to reach under the car to clamp the wheels and lift it off the ground. To be compatible with most vehicle models, this requires an extremely low chassis. However, an excessively low chassis reduces the parking robot's maneuverability and operating speed. Therefore, improving the chassis of parking robots is a pressing technical problem that needs to be solved. Utility Model Content

[0004] In view of the above-mentioned technical problems in the prior art, the purpose of this utility model is to provide a liftable rolling wheel assembly and a parking robot having the same. The rolling wheel assembly can realize the lifting and lowering of the platform to which it is connected. When used in a parking robot, it can raise the parking robot without affecting the clamping of the vehicle, thereby improving the parking robot's passability and increasing its travel speed.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] A liftable roller assembly includes a roller assembly, a fixed base, a linkage assembly, and a lifting motor. The roller assembly includes one or more rollers arranged in a row, with both ends of the axles of all rollers connected together by roller connectors. The linkage assembly includes a first connecting rod, a second connecting rod, and a third connecting rod. One end of the first connecting rod is rotatably mounted on the outside of the roller connector, and its other end is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is rotatably connected to the third connecting rod. The third connecting rod is fixedly connected to the push rod of the lifting motor. The middle portion of the first connecting rod, near the second connecting rod, is rotatably mounted on the fixed base. The fixed base and the lifting motor are fixedly mounted on the bottom of the frame, and the push rod of the lifting motor can extend and retract in the forward direction of the roller assembly.

[0007] In a further technical solution, a lifting motor can drive multiple rolling wheel assemblies, and the linkage components corresponding to the multiple rolling wheel assemblies share a third connecting rod, which is connected to the third connecting rod respectively. The push rod of the lifting motor is connected to the center position of the third connecting rod.

[0008] In the above technical solution, activating the lifting motor pushes the push rod, shortening the distance between the third connecting rod and the rolling wheel assembly. This causes the second and third connecting rods to rotate. Since the distance between the fixed seat and the lifting motor's cylinder is fixed, the first connecting rod can only rotate around the fixed seat, with one end rising high and the other end lowering, increasing the vertical height of the first connecting rod and completing the lifting action. Conversely, controlling the lifting motor to retract the push rod increases the distance between the third connecting rod and the rolling wheel assembly, causing the second and third connecting rods to rotate. Again, since the distance between the fixed seat and the lifting motor's cylinder is fixed, the first connecting rod can only rotate around the fixed seat, with both ends gradually approaching each other's height, decreasing the vertical height of the first connecting rod to approach the height of the rolling wheel connector, completing the lowering action. By combining this process with a lifting mechanism, the chassis of the parking robot can be raised and lowered.

[0009] This utility model also provides a parking robot, which uses the above-mentioned liftable rolling wheel set to realize the chassis lifting function.

[0010] This utility model has the following beneficial effects:

[0011] 1. The vertical lifting is converted into horizontal extension by the linkage component, which reduces the height occupied by the liftable roller assembly. It can be installed on the device that requires a low chassis, so as to achieve the lifting of the chassis without occupying a lot of height space.

[0012] 2. Simple structure, easy to install, suitable for various occasions;

[0013] 3. It can achieve one-to-one or one-to-many operation, and one lifting motor can drive the lifting of multiple roller components at the same time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the raised and lowerable rolling wheel assembly in the upward state of this utility model.

[0015] Figure 2 This is a schematic diagram of the lowering state structure of the adjustable rolling wheel assembly in an embodiment of this utility model;

[0016] Figure 3 This is a bottom view of the structure of the liftable rolling wheel assembly in an embodiment of this utility model;

[0017] In the diagram, 1 is the rolling wheel assembly, 2 is the fixed base, 3 is the linkage assembly, 4 is the lifting motor, 5 is the rolling wheel, 6 is the rolling wheel connector, 7 is the first connecting rod, 8 is the second connecting rod, 9 is the third connecting rod, and 10 is the push rod. Detailed Implementation

[0018] To more clearly illustrate the technical solution of this utility model, the following description is provided in conjunction with specific embodiments and accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model. For those skilled in the art, other examples can be obtained based on these embodiments without creative effort.

[0019] Example

[0020] This embodiment relates to a height-adjustable rolling wheel assembly, such as... Figure 1-3 As shown, the liftable roller assembly includes a roller assembly 1, a fixed base 2, a linkage assembly 3, and a lifting motor 4. The roller assembly includes three rollers 5, arranged in a row, with both ends of the axles of all rollers 5 connected together by roller connectors 6. The linkage assembly 3 includes a first connecting rod 7, a second connecting rod 8, and a third connecting rod 9. One end of the first connecting rod 7 is rotatably mounted on the outside of the roller connector 6, and the other end is rotatably connected to one end of the second connecting rod 8. The other end of the second connecting rod 8 is rotatably connected to the third connecting rod 9. The third connecting rod 9 is fixedly connected to the push rod 10 of the lifting motor 4. The middle part of the first connecting rod 7, near the second connecting rod 8, is rotatably mounted on the fixed base 2. The fixed base 2 and the lifting motor 4 are fixedly mounted on the bottom of the frame, and the push rod 10 of the lifting motor 4 can extend and retract in the forward direction of the roller assembly. A lifting motor 4 drives two rolling wheel assemblies 1. The linkage components 3 corresponding to the two rolling wheel assemblies 1 share a third connecting rod 9, which is connected to both ends of the third connecting rod 9. The push rod 10 of the lifting motor 4 is connected to the center of the third connecting rod 9.

[0021] Activating the lifting motor pushes the push rod, shortening the distance between the third connecting rod and the rolling wheel assembly. This causes the second and third connecting rods to rotate. Since the distance between the fixed seat and the lifting motor's cylinder is fixed, the first connecting rod can only rotate around the fixed seat, with one end rising high and the other end lowering, increasing the vertical height of the first connecting rod and completing the lifting action. Conversely, controlling the lifting motor to retract the push rod increases the distance between the third connecting rod and the rolling wheel assembly, causing the second and third connecting rods to rotate. Again, since the distance between the fixed seat and the lifting motor's cylinder is fixed, the first connecting rod can only rotate around the fixed seat, with both ends gradually approaching each other's height, decreasing the vertical height of the first connecting rod to approach the height of the rolling wheel connector, completing the lowering action. By combining this process with the lifting mechanism, the chassis of the parking robot can be raised and lowered.

Claims

1. A set of height-adjustable rolling wheels, characterized in that, The liftable roller assembly includes a roller assembly, a fixed base, a linkage assembly, and a lifting motor. The roller assembly includes one or more rollers, with the rollers of a roller assembly arranged in a row, and the two ends of the axles of all rollers connected together by roller connectors. The linkage assembly includes a first connecting rod, a second connecting rod, and a third connecting rod. One end of the first connecting rod is rotatably mounted on the outside of the roller connector, and its other end is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is rotatably connected to the third connecting rod. The third connecting rod is fixedly connected to the push rod of the lifting motor. The middle part of the first connecting rod, near the second connecting rod, is rotatably mounted on the fixed base. The fixed base and the lifting motor are respectively fixedly mounted on the bottom of the frame, and the push rod of the lifting motor can extend and retract in the forward direction of the roller assembly.

2. The adjustable roller assembly according to claim 1, characterized in that, A lifting motor can drive multiple rolling wheel assemblies. The linkage components corresponding to the multiple rolling wheel assemblies share a third connecting rod and are respectively connected to the third connecting rod. The push rod of the lifting motor is connected to the center position of the third connecting rod.

3. A parking robot, characterized in that, The parking robot has a set of liftable rolling wheels as described in claim 1 or 2.

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