Vehicle ultralow detection device

Abstract

The utility model discloses a vehicle ultralow detection device, which belongs to the technical field of stereo garages and comprises a mounting seat, a servo motor is mounted on the mounting seat, the servo motor is an absolute value encoder motor for outputting current, torque and encoder position of the servo motor, and the servo motor is connected with a control unit. A supporting arm is fixedly mounted on the mounting base, a turning plate is mounted on the supporting arm in a hinged mode through a first hinge shaft, the first hinge shaft is located in the middle of the lower surface of the turning plate, a swing arm is fixedly mounted on a power output shaft of the servo motor, and the swing arm is hinged to a connecting rod through a second hinge shaft. The connecting rod is hinged to the turning plate through a third hinge shaft, the third hinge shaft is located at one end of the lower surface of the turning plate, the other end of the turning plate is a touch free end, the technical problems that an existing detection device is complex in structure, short in service life and prone to misjudgment are solved, and the three-dimensional garage detection device is widely applied to three-dimensional garages.

Description

Technical Field

[0001] The utility model belongs to the technical field of stereo garages, and in particular relates to an ultra-low vehicle detection device. Background Art

[0002] During the process of storing and retrieving vehicles in the three-dimensional parking equipment, the vehicles need to be moved. For example, the clamp-wheel carrier needs to be moved to the bottom of the vehicle. After it is in place, the clamp arms are folded and the vehicle is lifted up for transportation. Therefore, for some vehicles with low chassis, it is difficult for the carrier to enter under the vehicle, or it may scratch the bottom of the vehicle and damage the vehicle or the carrier. Therefore, ultra-low detection should be carried out before the vehicle enters the garage for transportation to avoid the above situation.

[0003] Existing ultra-low detection equipment adopts two methods: collision structure or photoelectric sensing structure. The touch structure sets a baffle with a limited height on the ground at the vehicle entrance and exit. When the vehicle chassis is lower than the height of the baffle, the vehicle cannot enter the three-dimensional garage. This structure has two disadvantages. First, the vehicle will still contact and collide with the baffle, damaging the baffle or the vehicle. Second, the structure is complex and the baffle is often damaged by collision. The baffle needs to be replaced continuously, and the cost of use is high. The photoelectric sensing structure uses a photoelectric sensor to illuminate the bottom of the vehicle. If it is blocked, it means that the vehicle is too low and the vehicle is not allowed to enter the garage. The defect of this structure is that when the vehicle is loaded with cloth or drooping soft items, the vehicle is allowed to enter the garage, but the drooping soft items will block the photoelectric sensor, resulting in misjudgment.

[0004] Therefore, in the field of stereo garage technology, there is still a need for research and improvement of vehicle ultra-low detection devices, which is also a research hotspot and focus in the current stereo garage technology field, and is also the starting point for the completion of the present utility model. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is to provide a vehicle ultra-low detection device to solve the technical problems that the current detection device has a complex structure, a short service life, and is prone to misjudgment.

[0006] To solve the above technical problems, the technical solution of the utility model is: a vehicle ultra-low detection device, comprising a mounting seat, a servo motor is mounted on the mounting seat, the servo motor is an absolute value encoder motor that outputs the current, torque and encoder position of the servo motor, the servo motor is connected to a control unit, a support arm is fixedly mounted on the mounting seat, a flap is hingedly mounted on the support arm through a first hinge shaft, the first hinge shaft is located in the middle of the lower surface of the flap, a swing arm is fixedly mounted on the power output shaft of the servo motor, the swing arm is hinged to a connecting rod through a second hinge shaft, the connecting rod is hinged to the flap through a third hinge shaft, the third hinge shaft is located at one end of the lower surface of the flap, the other end of the flap is a touch free end, the first hinge shaft, the second hinge shaft and the third hinge shaft are all arranged parallel to the power output shaft of the servo motor.

[0007] As an improvement, a buffer limit block for limiting the swing limit position of the swing arm is provided on the mounting seat.

[0008] As a further improvement, the buffer limit block is connected to the adjustment rod, and the adjustment rod is threadedly connected to the mounting seat.

[0009] As another improvement, a protective plate is installed on the mounting seat, and the protective plate corresponds to the position of the upper surface of the flap when the flap falls flat.

[0010] As a further improvement, a bracket is provided on the support arm, and the bracket corresponds to the position of the lower surface of the free end of the flap that touches when the flap falls flat.

[0011] After adopting the above technical solution, the beneficial effects of the utility model are:

[0012] (1) In the embodiment of the utility model, the servo motor of the utility model reciprocates to drive the flap to flip up or fall flat. The servo motor is an absolute value encoder motor that outputs the current, torque and encoder position of the servo motor. The servo motor is connected to the control unit. When the servo motor drives the flap, the flap touches the external force which can be fed back to the servo motor, so that the torque, current or position of the servo motor changes. The control unit determines whether the vehicle chassis collides with the flap by judging the changes in torque, current and position. This structure has few parts and simple structure. When there are drooping soft objects on the vehicle, no misjudgment will occur, thereby greatly improving the detection accuracy.

[0013] (2) The buffer limit block is provided to effectively prevent the swing arm from exceeding the limit position due to the swing inertia force or collision external force, thereby preventing the swing arm from getting stuck.

[0014] (3) Since a support seat is provided on the support arm, when the flap falls flat, the lower surface of the free end of the flap is supported by the support seat, which plays an effective supporting role, thereby preventing the free end of the flap from being cantilevered and broken by external force, thereby further extending the service life of the flap. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0017] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model when the flap is in a flat state;

[0018] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model when the flap is turned up;

[0019] In the figure: 1. mounting base, 2. servo motor, 3. support arm, 4. flap, 5. first hinge axis, 6. swing arm, 7. second hinge axis, 8. connecting rod, 9. third hinge axis, 10. buffer limit block, 11. adjusting rod, 12. protective plate, 13. bracket. DETAILED DESCRIPTION

[0020] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The terms such as "front", "back", "left", "right", "inside", "outside", "middle", etc. cited in this specification are only for the convenience of description and are not intended to limit the scope of application of the present invention. Changes or adjustments to their relative relationships shall be regarded as within the scope of application of the present invention without substantially changing the technical content.

[0022] like Figure 1 and Figure 2 As shown, the utility model provides a vehicle ultra-low detection device, including a mounting base 1, a servo motor 2 is mounted on the mounting base 1, a support arm 3 is fixedly mounted on the mounting base 1, a flap 4 is hingedly mounted on the support arm 3 through a first hinge shaft 5, in order to prevent the flap 4 from hitting the vehicle chassis, the flap 4 is preferably a nylon plate, the first hinge shaft 5 is located in the middle of the lower surface of the flap 4, a swing arm 6 is fixedly mounted on the power output shaft of the servo motor 2, the swing arm 6 is hinged to a connecting rod 8 through a second hinge shaft 7, the connecting rod 8 is hinged to the flap 4 through a third hinge shaft 9, the third hinge shaft 9 is located at one end of the lower surface of the flap 4, the other end of the flap 4 is a touch free end, and the distance from the first hinge shaft 5 to the third hinge shaft 9 is less than the first hinge shaft 5. The distance from the connecting shaft 5 to the end face of the free end that touches it, the first hinge shaft 5, the second hinge shaft 7 and the third hinge shaft 9 are all arranged parallel to the power output shaft of the servo motor 2. The reciprocating rotation of the servo motor 2 drives the flap 4 to flip up or fall flat. The servo motor 2 is an absolute value encoder motor that outputs the current, torque and encoder position of the servo motor 2. The servo motor 2 is connected to the control unit, and the control unit is preferably a PLC programmable controller or a microcomputer. When the servo motor 2 drives the flap 4, the flap 4 touches an external force that can be fed back to the servo motor 2, so that the torque, current or position of the servo motor 2 changes. The control unit determines whether the vehicle chassis collides with the flap 4 by judging the changes in torque, current and position.

[0023] The mounting seat 1 is provided with a buffer limit block 10 for limiting the swing limit position of the swing arm 6. The buffer limit block 10 is usually a rubber block. A buffer limit block 10 is provided at the two limit positions of the reciprocating swing of the swing arm 6 to prevent the swing arm 6 from exceeding the limit position and causing jamming due to the swing inertia force or collision external force. The buffer limit block 10 is connected to the adjusting rod 11, and the adjusting rod 11 is threadedly connected to the mounting seat 1. By adjusting the position of the adjusting rod 11 on the mounting seat 1, the position of the buffer limit block 10 is adjusted to meet the installation adjustment needs.

[0024] A protective plate 12 is installed on the mounting seat 1, and the protective plate 12 corresponds to the position of the upper surface of the flap 4 when the flap 4 is flattened, or the upper surface of the flap 4 is located below the position of the protective plate 12, so as to prevent the flap 4 from being damaged by foreign objects on the vehicle chassis, effectively protect the flap 4, and extend the service life of the flap 4.

[0025] A bracket 13 is provided on the support arm 3, and the bracket 13 corresponds to the position of the lower surface of the touching free end of the flap 4 when the flap 4 is flattened. When the flap 4 is flattened, the lower surface of the touching free end of the flap 4 is supported by the bracket 13, which plays an effective supporting role, avoiding the touching free end of the flap 4 from being cantilevered and broken by external force, thereby further extending the service life of the flap 4.

[0026] When in use, the current for maintaining the normal flipping of the servo motor 2 is set to 1.8A, and the over-travel current is set to 2.4A. When an object on the vehicle hits the flap 4, the current is not greater than the over-travel current 2.4A and the control unit will not report an over-low. When the vehicle reaches the guiding position, the flap 4 automatically falls down. When the current exceeds the over-travel 2.4A and the encoder does not send displacement data, the control unit reports an over-low, and the flap 4 falls down, and the guiding device guides the vehicle out of the warehouse. If a vehicle collides with the flap 4 vigorously, the encoder sends displacement data. After the displacement changes, the control unit controls the motor to drop the flap 4 and reports an over-low, and the guiding device guides the vehicle out of the warehouse.

[0027] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A vehicle ultra-low detection device, including a mounting base, characterized in that: A servo motor is installed on the mounting seat, and the servo motor is an absolute value encoder motor that outputs the current, torque and encoder position of the servo motor. The servo motor is connected to a control unit. A support arm is fixedly mounted on the mounting seat, and a flap is hingedly mounted on the support arm through a first hinge shaft. The first hinge shaft is located in the middle of the lower surface of the flap. A swing arm is fixedly mounted on the power output shaft of the servo motor, and the swing arm is hinged to a connecting rod through a second hinge shaft. The connecting rod is hinged to the flap through a third hinge shaft. The third hinge shaft is located at one end of the lower surface of the flap, and the other end of the flap is a touch free end. The first hinge shaft, the second hinge shaft and the third hinge shaft are all arranged parallel to the power output shaft of the servo motor.

2. The vehicle ultra-low detection device according to claim 1, characterized in that: The mounting seat is provided with a buffer limit block for limiting the swing limit position of the swing arm.

3. The vehicle ultra-low detection device according to claim 2, characterized in that: The buffer limit block is connected to the adjustment rod, and the adjustment rod is threadedly connected to the mounting seat.

4. The vehicle ultra-low detection device according to claim 1, 2 or 3, characterized in that: A protective plate is installed on the mounting seat, and the protective plate corresponds to the position of the upper surface of the flip plate when the flip plate falls flat.

5. The vehicle ultra-low detection device according to claim 4, characterized in that: A bracket is provided on the support arm, and the bracket corresponds to the position of the lower surface of the free end of the flip plate that touches when the flip plate falls flat.

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