Vehicle posture detection device for forklift back-up parking test

Abstract

The utility model provides a forklift back-up parking test vehicle posture detection device, which relates to the technical field of test equipment, and comprises a fixed base, a lifting adjusting mechanism is arranged above the fixed base, the lifting adjusting mechanism comprises a supporting block, a screw rod, a threaded block and a servo motor, the height adjustment action is realized through the lifting adjusting mechanism, and the height of the supporting block is adjusted through the screw rod. An elevation angle adjusting mechanism is arranged above the fixed base, through cooperative use of the lifting adjusting mechanism, the elevation angle adjusting mechanism and the angle adjusting mechanism, the camera body is driven to carry out diversified 270-degree free adjustment, and the position and posture of a forklift and the relation between the forklift and the surrounding environment can be more accurately captured through multi-angle adjustment; the distance between the rear wheels of the forklift and the garage line and the real-time posture information of the forklift can be clearly seen, misjudgment caused by a view blind area is avoided, and a more reliable basis is provided for judging the operation accuracy of examinees.

Description

Technical Field

[0001] This utility model relates to the field of examination equipment technology, and in particular to a forklift reversing into a parking space examination vehicle posture detection device. Background Technology

[0002] Special equipment refers to eight categories of equipment that involve life safety and are highly dangerous, including boilers, pressure vessels (including gas cylinders), pressure pipelines, elevators, lifting machinery, passenger ropeways, large amusement facilities, and special motor vehicles for use in factories and plants. To obtain special operation qualifications, candidates must receive safety technology training and pass a safety technology theory exam and a practical operation skills assessment. In the forklift operation skills assessment, candidates need to reverse the forklift from the starting position into a designated position in the garage, and the forklift must be neatly arranged in the garage. During the reversing process, the forklift must maintain a constant speed and drive smoothly, without any dangerous actions such as sudden stops or sharp turns.

[0003] Currently, forklift vehicle posture detection during testing typically involves installing a camera system outside the garage. The images captured by the camera are processed using image recognition technology. First, the images undergo preprocessing, such as grayscale conversion and filtering, to remove noise and enhance image features. Then, feature extraction algorithms, such as edge detection algorithms (e.g., Canny edge detection), are used to extract key features like the garage edge line and the forklift outline. By analyzing these features, such as calculating the intersection point and angle between the forklift outline and the garage edge line, the forklift's posture is determined.

[0004] However, current cameras are usually fixedly installed on mounting platforms outside the garage. Since most cameras only have single-directional shooting capabilities, when shooting and detecting the forklift wheels and garage edge lines, the wheels can easily obstruct the garage edge lines, creating blind spots and leading to incorrect posture judgments, thus reducing the accuracy of forklift posture judgment. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies. Currently, most cameras only have single-directional shooting capabilities, which can easily create blind spots when shooting and detecting forklift wheels and garage edges, leading to incorrect attitude judgments and reducing the accuracy of forklift attitude assessment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A forklift reversing into a parking space test vehicle posture detection device includes a fixed base, and a lifting adjustment mechanism is provided above the fixed base. The lifting adjustment mechanism includes a support block, a lead screw, a threaded block and a servo motor, and the height adjustment action is realized through the lifting adjustment mechanism.

[0008] An elevation adjustment mechanism is provided above the fixed base. The elevation adjustment mechanism includes a fixed block, a rotating rod, a mounting plate, a first flat gear, a second flat gear, and an arc-shaped mounting block. The elevation adjustment mechanism enables the vertical elevation adjustment.

[0009] An angle adjustment mechanism is provided above the arc-shaped mounting block. The angle adjustment mechanism includes an arc-shaped slider, a moving plate, a fixed plate, a camera body, an arc-shaped external gear ring, and a third flat gear. The angle adjustment mechanism enables the camera body to be adjusted.

[0010] Preferably, the lower end of the servo motor is fixedly installed to the inner bottom wall of the fixed base, a movable groove is provided on one side of the support block, and the outer side of the threaded block is slidably connected to the inner wall of the movable groove.

[0011] Preferably, the outer side of the lead screw is threaded to the inner wall of the threaded block, the upper end of the lead screw is rotatably connected to the inner top wall of the moving groove through a bearing, the lower end of the lead screw passes through the support block and extends into the interior of the fixed base, and the lower end of the lead screw is fixedly connected to the output shaft of the servo motor through a coupling.

[0012] Preferably, one end of the fixing block is fixedly connected to one side of the threaded block, and the other end of the fixing block is fixedly connected to one side of the mounting plate. A first servo motor is fixedly mounted on the back of the mounting plate, and the output shaft of the first servo motor is fixedly mounted to a first rotating shaft via a coupling.

[0013] Preferably, one end of the first rotating shaft is fixedly sleeved to the inner wall of the first spur gear, the inner wall of the fixing block is rotatably connected to the outside of the rotating rod through a bearing, the outside of the rotating rod is fixedly sleeved to the inner wall of the second spur gear, and the tooth surface of the second spur gear meshes with the tooth surface of the first spur gear.

[0014] Preferably, both ends of the rotating rod are fixedly connected to the interior of the arc-shaped mounting block, the upper end of the arc-shaped mounting block is provided with an arc-shaped limiting groove, the outer side of the arc-shaped slider is slidably connected to the inner wall of the arc-shaped limiting groove, the inner wall of the arc-shaped outer gear ring is fixedly sleeved with the outer side of the arc-shaped mounting block, and the lower end of the moving plate is fixedly connected to the upper end of the arc-shaped slider.

[0015] Preferably, the lower end of the fixed plate is fixedly connected to the upper end of the movable plate, the upper end of the fixed plate is fixedly installed to the lower end of the camera body, a second servo motor is fixedly installed on the upper end of the movable plate, the output shaft of the second servo motor is fixedly installed with a second rotating shaft through a coupling, one end of the second rotating shaft passes through and extends to the lower part of the movable plate, and the outer side of one end of the second rotating shaft is fixedly sleeved with the inner wall of the third spur gear, and the tooth surface of the third spur gear meshes with the tooth surface of the arc-shaped external gear ring.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the combined use of the lifting adjustment mechanism, the tilt adjustment mechanism, and the angle adjustment mechanism enables the camera body to be freely adjusted in multiple ways up to 270 degrees. This multi-angle adjustment allows for more accurate capture of the forklift's position, posture, and relationship with the surrounding environment. It also provides a clear view of the distance between the forklift's rear wheels and the warehouse line, as well as the vehicle's real-time posture information. This avoids misjudgments caused by blind spots and provides a more reliable basis for evaluating the accuracy of the examinee's operation. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of a forklift reversing into a parking space test vehicle posture detection device provided by this utility model;

[0019] Figure 2 A three-dimensional view of the support block structure of a forklift reversing into a parking test vehicle posture detection device provided by this utility model;

[0020] Figure 3 A three-dimensional view of the fixed block structure of a forklift reversing into a parking test vehicle posture detection device provided by this utility model;

[0021] Figure 4 A three-dimensional view of the arc-shaped mounting block structure of a forklift reversing into a parking test vehicle posture detection device provided by this utility model;

[0022] Figure 5 This utility model provides a perspective view of the moving plate structure of a forklift reversing into a parking space test vehicle posture detection device.

[0023] Legend: 1. Fixed base; 2. Support block; 21. Lead screw; 22. Threaded block; 23. Servo motor; 24. Moving groove; 3. Fixed block; 31. Rotating rod; 32. Mounting plate; 33. First spur gear; 34. Second spur gear; 35. Arc-shaped mounting block; 36. First servo motor; 37. First rotating shaft; 4. Arc-shaped slider; 41. Moving plate; 42. Fixed plate; 43. Camera body; 44. Arc-shaped external gear ring; 45. Third spur gear; 46. Arc-shaped limiting groove; 47. Second servo motor; 48. Second rotating shaft. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model 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 disclosure of this utility model more thorough and complete.

[0026] 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 may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figure 1-5As shown, this utility model provides a technical solution: a forklift reversing into a parking test vehicle posture detection device, including a fixed base 1, a lifting adjustment mechanism is provided above the fixed base 1, and the lifting adjustment mechanism includes a support block 2, a lead screw 21, a threaded block 22 and a servo motor 23, and the height adjustment action is realized through the lifting adjustment mechanism;

[0030] An elevation adjustment mechanism is provided above the fixed base 1. The elevation adjustment mechanism includes a fixed block 3, a rotating rod 31, a mounting plate 32, a first flat gear 33, a second flat gear 34 and an arc-shaped mounting block 35. The elevation adjustment mechanism realizes the up and down elevation adjustment action.

[0031] An angle adjustment mechanism is provided above the arc-shaped mounting block 35. The angle adjustment mechanism includes an arc-shaped slider 4, a moving plate 41, a fixed plate 42, a camera body 43, an arc-shaped external gear ring 44, and a third flat gear 45. The angle adjustment mechanism enables the camera body 43 to be adjusted.

[0032] By enabling the camera body 43 to be freely adjusted in a variety of 270 degrees, the multi-angle adjustment can more accurately capture the position, posture and relationship with the surrounding environment of the forklift, clearly see the distance between the rear wheel of the forklift and the warehouse line, and the real-time posture information of the vehicle, avoiding erroneous judgments caused by blind spots, and providing a more reliable basis for judging the accuracy of the candidate's operation.

[0033] The lower end of the servo motor 23 is fixedly installed on the inner bottom wall of the fixed base 1. A self-locking universal wheel can be installed under the fixed base 1 to facilitate movement. A moving groove 24 is provided on one side of the support block 2. The outer side of the threaded block 22 is slidably connected to the inner wall of the moving groove 24.

[0034] The lead screw 21 is threaded to the inner wall of the threaded block 22. The upper end of the lead screw 21 is rotatably connected to the inner top wall of the moving groove 24 through a bearing. The lower end of the lead screw 21 passes through the support block 2 and extends into the interior of the fixed base 1. The lower end of the lead screw 21 is fixedly connected to the output shaft of the servo motor 23 through a coupling. The servo motor 23 serves as a stable drive source, driving the lead screw 21 to rotate clockwise and counterclockwise. The rotation of the lead screw 21 limits the rotation of the threaded block 22 through the moving groove 24, causing the threaded block 22 to move linearly.

[0035] One end of the fixed block 3 is fixedly connected to one side of the threaded block 22, and the other end of the fixed block 3 is fixedly connected to one side of the mounting plate 32. The lifting and lowering movement of the threaded block 22 drives the fixed block 3 to move and adjust.

[0036] The first servo motor 36 is fixedly mounted on the back of the mounting plate 32. The output shaft of the first servo motor 36 is fixedly mounted on the first rotating shaft 37 through a coupling. The first servo motor 36 serves as a stable drive source, driving the first rotating shaft 37 to rotate stably.

[0037] One end of the first rotating shaft 37 is fixedly sleeved to the inner wall of the first spur gear 33. The inner wall of the fixing block 3 is rotatably connected to the outside of the rotating rod 31 through a bearing. The outside of the rotating rod 31 is fixedly sleeved to the inner wall of the second spur gear 34. The tooth surface of the second spur gear 34 meshes with the tooth surface of the first spur gear 33. The rotation of the first rotating shaft 37 drives the first spur gear 33 to rotate, and drives the rotating rod 31 to rotate through the meshing second spur gear 34.

[0038] Both ends of the rotating rod 31 are fixedly connected to the inside of the arc-shaped mounting block 35. The rotation of the rotating rod 31 drives the arc-shaped mounting block 35 to adjust the elevation angle. The upper end of the arc-shaped mounting block 35 is provided with an arc-shaped limiting groove 46.

[0039] The outer side of the arc-shaped slider 4 is slidably connected to the inner wall of the arc-shaped limiting groove 46, the inner wall of the arc-shaped outer tooth ring 44 is fixedly sleeved with the outer side of the arc-shaped mounting block 35, the lower end of the moving plate 41 is fixedly connected to the upper end of the arc-shaped slider 4, and the arc-shaped limiting groove 46 guides and limits the movement of the arc-shaped slider 4 to prevent the moving plate 41 from driving the arc-shaped slider 4 out of the arc-shaped limiting groove 46.

[0040] The lower end of the fixed plate 42 is fixedly connected to the upper end of the movable plate 41, and the upper end of the fixed plate 42 is fixedly installed to the lower end of the camera body 43. The fixed plate 42 drives the camera body 43 to move and adjust stably. The captured images are transmitted to the background through the camera body 43 and processed for calculation and analysis to determine the posture of the forklift.

[0041] A second servo motor 47 is fixedly mounted on the upper end of the movable plate 41. The output shaft of the second servo motor 47 is fixedly mounted on a second rotating shaft 48 via a coupling. One end of the second rotating shaft 48 passes through and extends to the lower part of the movable plate 41. The outer side of one end of the second rotating shaft 48 is fixedly sleeved with the inner wall of the third spur gear 45. The tooth surface of the third spur gear 45 meshes with the tooth surface of the arc-shaped external gear ring 44. The second servo motor 47 serves as a stable drive source, driving the third spur gear 45 to rotate via the second rotating shaft 48. The rotation of the third spur gear 45 drives the movable plate 41 to move and adjust via the meshing arc-shaped external gear ring 44.

[0042] The working process of this utility model:

[0043] Step 1: Place the device on both sides of the rear end of the garage. Start the servo motor 23 to drive the lead screw 21 to rotate according to the usage requirements. The rotation of the lead screw 21 causes the threaded block 22 to rise and move through the limiting of the moving groove 24. The rising and moving of the threaded block 22 drives the camera body 43 to adjust to a suitable height through the cooperation of the fixed block 3, the rotating rod 31, the arc-shaped mounting block 35 and the fixed plate 42.

[0044] Step 2: Start the first servo motor 36 to drive the first spur gear 33 to rotate through the first rotating shaft 37. The rotation of the first spur gear 33 drives the rotating rod 31 to rotate through the meshing second spur gear 34. The rotation of the rotating rod 31 drives the camera body 43 to adjust downward tilt angle through the cooperation of the arc-shaped mounting block 35 and the fixing block 3. Conversely, it drives the first spur gear 33 to rotate in the opposite direction, thereby driving the camera body 43 to adjust upward tilt angle.

[0045] Step 3: Start the second servo motor 47, which drives the third spur gear 45 to rotate via the second rotating shaft 48. The rotation of the third spur gear 45, through the meshing of the arc-shaped external gear ring 44, causes the arc-shaped slider 4 to slide within the arc-shaped limiting groove 46. The movement of the arc-shaped slider 4 causes the moving plate 41 to rotate in a circular motion, which in turn causes the fixed plate 42 to adjust the angle of the camera body 43. Through diversified adjustments, the camera body 43 can be adjusted to have a suitable shooting angle during the forklift reversing test, avoiding blind spots that could affect the judgment of the forklift's posture and providing a more reliable basis for evaluating the accuracy of the examinee's operation.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forklift reversing into a parking space test vehicle posture detection device, comprising a fixed base (1), characterized in that: A lifting adjustment mechanism is provided above the fixed base (1), and the lifting adjustment mechanism includes a support block (2), a lead screw (21), a threaded block (22) and a servo motor (23), and the height adjustment action is realized through the lifting adjustment mechanism; An elevation adjustment mechanism is provided above the fixed base (1), and the elevation adjustment mechanism includes a fixed block (3), a rotating rod (31), a mounting plate (32), a first flat gear (33), a second flat gear (34) and an arc-shaped mounting block (35). The elevation adjustment mechanism realizes the up and down elevation adjustment action. An angle adjustment mechanism is provided above the arc-shaped mounting block (35), and the angle adjustment mechanism includes an arc-shaped slider (4), a moving plate (41), a fixed plate (42), a camera body (43), an arc-shaped external gear ring (44), and a third flat gear (45). The angle adjustment mechanism enables the camera body (43) to be adjusted.

2. The forklift reversing into a parking space test vehicle posture detection device according to claim 1, characterized in that: The lower end of the servo motor (23) is fixedly installed on the inner bottom wall of the fixed base (1). A movable groove (24) is provided on one side of the support block (2). The outer side of the threaded block (22) is slidably connected to the inner wall of the movable groove (24).

3. The forklift reversing into a parking space test vehicle posture detection device according to claim 2, characterized in that: The outer side of the lead screw (21) is threaded to the inner wall of the threaded block (22). The upper end of the lead screw (21) is rotatably connected to the inner top wall of the moving groove (24) through a bearing. The lower end of the lead screw (21) passes through the support block (2) and extends into the interior of the fixed base (1). The lower end of the lead screw (21) is fixedly connected to the output shaft of the servo motor (23) through a coupling.

4. The forklift reversing into a parking space test vehicle posture detection device according to claim 1, characterized in that: One end of the fixing block (3) is fixedly connected to one side of the threaded block (22), and the other end of the fixing block (3) is fixedly connected to one side of the mounting plate (32). A first servo motor (36) is fixedly installed on the back of the mounting plate (32), and the output shaft of the first servo motor (36) is fixedly installed with a first rotating shaft (37) through a coupling.

5. The forklift reversing into a parking space test vehicle posture detection device according to claim 4, characterized in that: One end of the first rotating shaft (37) is fixedly sleeved to the inner wall of the first spur gear (33). The inner wall of the fixing block (3) is rotatably connected to the outside of the rotating rod (31) through a bearing. The outside of the rotating rod (31) is fixedly sleeved to the inner wall of the second spur gear (34). The tooth surface of the second spur gear (34) meshes with the tooth surface of the first spur gear (33).

6. The forklift reversing parking test vehicle posture detection device according to claim 1, characterized in that: Both ends of the rotating rod (31) are fixedly connected to the inside of the arc-shaped mounting block (35). The upper end of the arc-shaped mounting block (35) is provided with an arc-shaped limiting groove (46). The outer side of the arc-shaped slider (4) is slidably connected to the inner wall of the arc-shaped limiting groove (46). The inner wall of the arc-shaped external gear ring (44) is fixedly sleeved to the outer side of the arc-shaped mounting block (35). The lower end of the moving plate (41) is fixedly connected to the upper end of the arc-shaped slider (4).

7. The forklift reversing parking test vehicle posture detection device according to claim 1, characterized in that: The lower end of the fixed plate (42) is fixedly connected to the upper end of the movable plate (41), the upper end of the fixed plate (42) is fixedly installed to the lower end of the camera body (43), the upper end of the movable plate (41) is fixedly installed with a second servo motor (47), the output shaft of the second servo motor (47) is fixedly installed with a second rotating shaft (48) through a coupling, one end of the second rotating shaft (48) passes through and extends to the lower part of the movable plate (41), the outer side of one end of the second rotating shaft (48) is fixedly sleeved with the inner wall of the third spur gear (45), and the tooth surface of the third spur gear (45) meshes with the tooth surface of the arc-shaped external gear ring (44).

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