Lifting device and mechanical parking equipment

Abstract

The utility model relates to a lifting device and mechanical parking equipment. The lifting device comprises a lifting driving assembly. The lifting chain assembly is connected with the lifting driving assembly and can ascend or descend under the driving of the lifting driving assembly; the counterweight assembly is connected with one end of the lifting chain assembly; and the lifting platform deck is connected with the other end of the lifting chain assembly through the pressure sensor. When the weight is smaller than the limit load of the lifting device, the lifting driving assembly makes contact with a brake, the chain assembly is driven to ascend and descend to drive the lifting carrying platform and the vehicle to reach the target vacant parking space so that the vehicle can be parked, and if the weight of the vehicle is larger than the limit load of the lifting device, a corresponding alarm action can be conducted. Therefore, vehicle falling and parking equipment damage caused by breakage of the lifting chain assembly due to overweight parking are eliminated, and the property safety of the user and the safety of the parking equipment are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of parking equipment, in particular to a lifting device and a mechanical parking equipment. Background Art

[0002] The problem of nowhere to park vehicles is the result of the development of the city's society, economy and transportation to a certain extent, which seriously affects people's life convenience and happiness, and poses a huge challenge to the orderly and safe management of the city. The advent of three-dimensional parking equipment has well solved the problem of parking difficulty.

[0003] The mechanical three-dimensional parking equipment is a relatively common type currently in use. When working, the lifting device carries the vehicle from the parking entrance to the parking space or from the lifting space to the parking exit. However, the lifting device generally uses a chain as the stress component, and the load-bearing capacity of the chain is limited. If the weight of the vehicle exceeds the ultimate load of the chain, the chain will break and the vehicle will fall, resulting in property losses of users and damage to the mechanical parking equipment. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a lifting device and a mechanical parking equipment, which are used to solve the problem that potential vehicle falling caused by overweight parking may result in property losses and damage to the parking equipment.

[0005] According to one aspect of the utility model, a lifting device is provided, which comprises:

[0006] A lifting drive assembly;

[0007] A lifting chain assembly, which is connected with the lifting drive assembly and can rise or fall under the drive of the lifting drive assembly;

[0008] A counterweight assembly, which is connected with one end of the lifting chain assembly; and

[0009] A pressure sensor and a lifting platform, and the lifting platform is connected with the other end of the lifting chain assembly through the pressure sensor.

[0010] In one embodiment, the lifting chain assembly includes a first chain and a second chain. One end of the first chain away from the counterweight assembly is provided with a first hanging rod and a first locking assembly. One end of the second chain away from the counterweight assembly is provided with a second hanging rod and a second locking assembly. The first hanging rod is connected to the first side portion of the lifting stage through the first locking assembly, and the pressure sensor is installed on the first hanging rod. The second hanging rod is connected to the second side portion of the lifting stage through the second locking assembly, and the pressure sensor is installed on the second hanging rod. Wherein, the first side portion and the second side portion are two opposite sides of the lifting stage.

[0011] In one embodiment, a first installation through hole is formed in the first side portion. The first locking assembly includes a first locking nut and a second locking nut. The first hanging rod is slidably disposed through the first installation through hole. The first locking nut is screwed on the outside of the first hanging rod and is buckled above the first side portion. The pressure sensor is sleeved on the outside of the first hanging rod. The second locking nut is screwed on the outside of the first hanging rod and is located below the first side portion. The second locking nut makes the pressure sensor closely attached to the first side portion.

[0012] In one embodiment, a second installation through hole is formed in the second side portion. The second locking assembly includes a third locking nut and a fourth locking nut. The second hanging rod is slidably disposed through the second installation through hole. The third locking nut is screwed on the outside of the second hanging rod and is buckled above the second side portion. The pressure sensor is sleeved on the outside of the second hanging rod. The fourth locking nut is screwed on the outside of the second hanging rod and is located below the second side portion. The fourth locking nut makes the pressure sensor closely attached to the second side portion.

[0013] In one embodiment, both the first hanging rod and the first locking assembly are provided with two and are arranged at intervals along the length direction of the first side of the lifting stage. Both the second hanging rod and the second locking assembly are provided with two and are arranged at intervals along the length direction of the second side of the lifting stage. Thus, four hanging points arranged in a rectangle are simultaneously connected to the lifting chain assembly.

[0014] In one embodiment, the lifting drive assembly is arranged at a position above and to one side of the lifting stage. The lifting device further includes a steering support wheel, which is used for rotatably fixing and installing, and the first chain and / or the second chain passes around the outside of the steering support wheel.

[0015] In one embodiment, the lifting drive assembly includes a motor, a reducer, a lifting shaft, a first transmission wheel and a second transmission wheel. The motor, the reducer and the lifting shaft are connected in sequence. The first transmission wheel and the second transmission wheel are installed on the outside of the lifting shaft at an axial interval along the lifting shaft. The first chain is wrapped around the first transmission wheel, and the second chain is wrapped around the second transmission wheel.

[0016] In one of the embodiments, the counterweight assembly includes a connecting rod, a counterweight frame and a counterweight body, the counterweight frame is connected to one end of the lifting chain assembly through the connecting rod, and the counterweight body is installed in the counterweight frame.

[0017] In one embodiment, the lifting device further includes a control system, a protection program is pre-stored in the control system, and the control system is electrically connected to the lifting drive assembly.

[0018] A second aspect of the present application further provides a mechanical parking device, which includes the lifting device as described above.

[0019] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0020] When the lifting device of the present scheme is working, the lifting drive assembly maintains the braking state. After the vehicle to be parked drives onto the lifting platform, the counterweight assembly forms a force balance with the lifting platform and the vehicle to ensure that the lifting platform stops stably at the current position. At this time, the weight of the vehicle acts on the lifting platform and the lifting chain assembly, so that the lifting chain assembly will generate a force on the pressure sensor. This force is also the weight of the vehicle. The current weight of the vehicle can be accurately and effectively measured through the pressure sensor. When the weight is less than the limit load of the lifting device, the lifting drive assembly contacts the brake and drives the lifting platform and the vehicle to the target vacant parking space by lifting and lowering the driving chain assembly to realize vehicle parking. If the weight of the vehicle is greater than the limit load of the lifting device, a corresponding alarm action will be performed to remind the user to withdraw the vehicle from the lifting device, thereby eliminating the vehicle falling and parking equipment damage caused by the breakage of the lifting chain assembly due to overweight parking, thereby protecting the user's property safety and parking equipment safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1Front view structural schematic diagram of a lifting device for an embodiment;

[0023] Figure 2 is Figure 1 Local enlarged structure diagram at position A in

[0024] Figure 3 Top view structural schematic diagram of the lifting platform.

[0025] Wherein:

[0026] 100, lifting device; 10, lifting drive assembly; 20, lifting chain assembly; 21, first chain; 22, second chain; 23, first suspension rod; 24, first locking nut; 25, second locking nut; 30, counterweight assembly; 31, connecting rod; 32, counterweight frame; 33, counterweight body; 40, pressure sensor; 50, lifting platform; 51, first side; 52, second side; 60, steering support wheel. Detailed implementation manner

[0027] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used herein in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] Please refer to Figures 1 - 3, a lifting device 100 of an embodiment, which includes a lifting drive assembly 10; a lifting chain assembly 20, the lifting chain assembly 20 is connected to the lifting drive assembly 10 and can move up or down under the drive of the lifting drive assembly 10; a counterweight assembly 30, the counterweight assembly 30 is connected to one end of the lifting chain assembly 20; and a pressure sensor 40 and a lifting platform 50, the lifting platform 50 is connected to the other end of the lifting chain assembly 20 through the pressure sensor 40.

[0031] Implementing the embodiments of the present utility model will have the following beneficial effects: When the lifting device 100 of this solution works, the lifting drive assembly 10 maintains a braking state. After the vehicle to be parked drives onto the lifting platform 50, the counterweight assembly 30 forms a force balance with the lifting platform 50 and the vehicle, ensuring that the lifting platform 50 stops stably at the current position. At this time, the weight of the vehicle acts on the lifting platform 50 and the lifting chain assembly 20, causing the lifting chain assembly 20 to exert a force on the pressure sensor 40, which is also the weight of the vehicle. The weight of the current vehicle can be accurately and effectively measured through the pressure sensor 40. When the weight is less than the limit load of the lifting device 100, the lifting drive assembly 10 releases the brake and drives the lifting chain assembly 20 to lift and lower, driving the lifting platform 50 and the vehicle to reach the target empty parking space to achieve vehicle parking. If the weight of the vehicle is greater than the limit load of the lifting device 100, corresponding alarm actions will be taken to remind the user to drive the vehicle out of the lifting device 100, thereby eliminating the vehicle falling and parking equipment damage caused by the fracture of the lifting chain assembly 20 due to overweight parking, protecting the safety of the user's property and the parking equipment.

[0032] Please refer to Figure 1 , in one of the embodiments, the lifting chain assembly 20 includes a first chain 21 and a second chain 22. One end of the first chain 21 away from the counterweight assembly 30 is provided with a first suspension rod 23 and a first locking assembly. One end of the second chain 22 away from the counterweight assembly 30 is provided with a second suspension rod and a second locking assembly. The first suspension rod 23 is connected to the first side portion 51 of the lifting platform 50 through the first locking assembly. A pressure sensor 40 is installed on the first suspension rod 23. The second suspension rod is connected to the second side portion 52 of the lifting platform 50 through the second locking assembly. A pressure sensor 40 is installed on the second suspension rod; wherein, the first side portion 51 and the second side portion 52 are two opposite sides of the lifting platform 50.

[0033] It is easy to understand that by simultaneously using the first chain 21 and the second chain 22 to connect with the lifting platform 50, the two chains can effectively share the weight of the lifting platform 50 and the vehicle parked on the lifting platform 50, reduce the load on a single chain, and improve durability and reliability. The pressure sensor 40 is connected to the lifting platform 50 through the first suspension rod 23, the first locking assembly, the second suspension rod, and the second locking assembly respectively. The installation method is simple, the connection reliability is high, and there is no need to make any structural improvement to the original lifting platform 50. The weighing module can be easily installed on the old lifting device 100, which is easy to implement and has a low use cost. During use, by obtaining the sum of the vehicle pressures of the two pressure sensors 40 at the first suspension rod 23 and the second suspension rod, the weight load of the vehicle on the lifting platform 50 can be accurately obtained. The measurement method and principle are simple, and the error is small.

[0034] Please refer to Figure 2 , specifically, in one embodiment, the first side portion 51 is provided with a first installation through hole. The first locking assembly includes a first locking nut 24 and a second locking nut 25. The first suspension rod 23 is slidably inserted through the first installation through hole. The first locking nut 24 is screwed onto the outside of the first suspension rod 23 and is buckled above the first side portion 51. The pressure sensor 40 is sleeved on the outside of the first suspension rod 23. The second locking nut 25 is screwed onto the outside of the first suspension rod 23 and is located below the first side portion 51. The second locking nut 25 makes the pressure sensor 40 closely attached to the first side portion 51.

[0035] Similarly, the second side portion 52 is provided with a second installation through hole. The second locking assembly includes a third locking nut and a fourth locking nut. The second suspension rod is slidably inserted through the second installation through hole. The third locking nut is screwed onto the outside of the second suspension rod and is buckled above the second side portion 52. The pressure sensor 40 is sleeved on the outside of the second suspension rod. The fourth locking nut is screwed onto the outside of the second suspension rod and is located below the second side portion 52. The fourth locking nut makes the pressure sensor 40 closely attached to the second side portion 52.

[0036] It is easy to understand that the outer peripheral walls of the first suspension rod 23 and the second suspension rod are provided with external thread structures, so as to facilitate the threaded assembly with the first locking nut 24, the second locking nut 25, the third locking nut, and the fourth threaded nut. The connection method is simple, the operation is convenient and labor-saving, and the threaded adjustment precision is high. It can ensure that the pressure sensor 40 just contacts the first side portion 51 and the second side portion 52, avoiding the generation of additional pressure that affects the measurement accuracy of the pressure sensor 40.

[0037] Preferably, in yet another embodiment, two first suspension rods 23 and two first locking assemblies are provided and arranged at intervals along the length direction of the first side of the lifting platform 50, and two second suspension rods and two second locking assemblies are provided and arranged at intervals along the length direction of the second side of the lifting platform 50, thereby forming four hanging points arranged in a rectangle and connected to the lifting chain assembly 20 at the same time. By using four hanging points to hoist the lifting platform 50, the force on the lifting platform 50 is more uniform, the posture of the lifting platform 50 is more stable, and at the same time, the load on a single chain can be further reduced, improving the overall structural performance of the lifting device 100.

[0038] In one embodiment, the lifting drive assembly 10 is arranged at a position offset to one side above the lifting platform 50. The lifting device 100 further includes a steering support wheel 60, and the steering support wheel 60 is used for rotatably fixing and installing, and the first chain 21 and / or the second chain 22 is wound around the outside of the steering support wheel 60. Since the lengths of the first chain 21 and the second chain 22 between the lifting drive assembly 10 and the lifting platform 50 are relatively large, winding the first chain 21 and / or the second chain 22 around the steering support wheel 60 can provide reliable support for the middle suspension section of each chain and enable the chain to turn and move more smoothly and safely.

[0039] Optionally, in one embodiment, the lifting drive assembly 10 includes a motor, a reducer, a lifting shaft, a first transmission wheel and a second transmission wheel. The motor, the reducer and the lifting shaft are sequentially connected. The first transmission wheel and the second transmission wheel are installed at intervals along the axial direction of the lifting shaft outside the lifting shaft. The first chain 21 is wound around the first transmission wheel, and the second chain 22 is wound around the second transmission wheel. The structural composition of the lifting drive assembly 10 is simple. By means of the first transmission wheel and the second transmission wheel, driving force can be synchronously output to the first chain 21 and the second chain 22, ensuring the synchronous lifting operation of the first chain 21 and the second chain 22, and further ensuring that the posture of the lifting platform 50 is always horizontal, preventing the vehicle from slipping off the tilted lifting platform 50 and causing safety accidents and property losses.

[0040] In one embodiment, the counterweight assembly 30 includes a connecting rod 31, a counterweight frame 32 and a counterweight body 33. The counterweight frame 32 is connected to one end of the lifting chain assembly 20 through the connecting rod 31, and the counterweight body 33 is installed in the counterweight frame 32. Therefore, the counterweight frame 32 can be effectively and reliably connected to the lifting chain assembly 20 through the connecting rod 31, and then a counterweight body 33 with a suitable weight is installed in the counterweight frame 32, so as to provide a force balance support for the lifting platform 50 and ensure the reliable lifting operation of the lifting platform 50.

[0041] In addition, the lifting device 100 further includes a control system. A protection program is pre-stored in the control system, and the control system is electrically connected to the lifting drive assembly 10. When the measured weight of the vehicle is greater than the limit load of the lifting device 100, the protection program is activated, and the control system randomly controls the lifting drive assembly 10 to stop operating in a timely manner, avoiding safety problems such as chain overload fracture. The control system can be a PLC, an industrial control computer, etc.

[0042] In the second aspect of the present application, a mechanical parking equipment is further provided, which includes the lifting device 100 as described above.

[0043] The above embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A lifting device, characterized in that, Comprising: A lifting drive assembly; A lifting chain assembly, which is connected to the lifting drive assembly and can move up or down under the drive of the lifting drive assembly; A counterweight assembly, which is connected to one end of the lifting chain assembly; and A pressure sensor and a lifting platform, and the lifting platform is connected to the other end of the lifting chain assembly through the pressure sensor.

2. The lifting device according to claim 1, characterized in that, The lifting chain assembly includes a first chain and a second chain. One end of the first chain away from the counterweight assembly is provided with a first suspension rod and a first locking assembly. One end of the second chain away from the counterweight assembly is provided with a second suspension rod and a second locking assembly. The first suspension rod is connected to the first side of the lifting platform through the first locking assembly, and the pressure sensor is installed on the first suspension rod. The second suspension rod is connected to the second side of the lifting platform through the second locking assembly, and the pressure sensor is installed on the second suspension rod; wherein, the first side and the second side are two opposite sides of the lifting platform.

3. The lifting device according to claim 2, characterized in that, The first side is provided with a first installation through hole. The first locking assembly includes a first locking nut and a second locking nut. The first suspension rod is slidably inserted through the first installation through hole. The first locking nut is screwed on the outside of the first suspension rod and presses against the upper part of the first side. The pressure sensor is sleeved on the outside of the first suspension rod. The second locking nut is screwed on the outside of the first suspension rod and is located below the first side. The second locking nut makes the pressure sensor closely attached to the first side.

4. The lifting device according to claim 2, wherein, The second side is provided with a second installation through hole. The second locking assembly includes a third locking nut and a fourth locking nut. The second suspension rod is slidably inserted through the second installation through hole. The third locking nut is screwed on the outside of the second suspension rod and presses against the upper part of the second side. The pressure sensor is sleeved on the outside of the second suspension rod. The fourth locking nut is screwed on the outside of the second suspension rod and is located below the second side. The fourth locking nut makes the pressure sensor closely attached to the second side.

5. The lifting device according to claim 2, wherein Both the first suspension rod and the first locking assembly are provided with two and are arranged at intervals along the length direction of the first side of the lifting platform. Both the second suspension rod and the second locking assembly are provided with two and are arranged at intervals along the length direction of the second side of the lifting platform. Thus, four hanging points arranged in a rectangle are simultaneously connected to the lifting chain assembly.

6. The lifting device according to claim 2, characterized in that, The lifting drive assembly is arranged at a position on one side above the lifting platform. The lifting device further includes a steering support wheel, which is used for rotatably fixing and installing, and the first chain and / or the second chain passes around the outside of the steering support wheel.

7. The lifting device according to claim 2, characterized in that The lifting drive assembly includes a motor, a reducer, a lifting shaft, a first transmission wheel, and a second transmission wheel. The motor, the reducer, and the lifting shaft are sequentially connected. The first transmission wheel and the second transmission wheel are installed at intervals along the axial direction of the lifting shaft outside the lifting shaft. The first chain is wound around the first transmission wheel, and the second chain is wound around the second transmission wheel.

8. The lifting device according to claim 1, wherein The counterweight assembly includes a connecting rod, a counterweight frame, and a counterweight body. The counterweight frame is connected to one end of the lifting chain assembly through the connecting rod, and the counterweight body is installed in the counterweight frame.

9. The lifting device according to claim 1, characterized in that, The lifting device further includes a control system. A protection program is pre-stored in the control system, and the control system is electrically connected to the lifting drive assembly.

10. A mechanical parking equipment, characterized in that, It includes the lifting device according to any one of claims 1 to 9.

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