Pallet fork dip angle and pallet fork height detection device for forklift examination
By installing composite detection components on the forklift and using high-precision wire pull sensors to monitor the fork inclination angle and height in real time, the problem of manual judgment affecting the objectivity and fairness of the exam is solved, and the automated judgment of the forklift exam is realized.
Patent Information
- Application Number
- CN202422407407.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the prior art, the detection and judgment of the lowest point of forklift forks from the ground mainly relies on manual judgment, which affects the objectivity and fairness of the exam, making it difficult to achieve efficient and intuitive judgment.
The composite detection component is adopted, including the first high-precision wire pull sensor and the second high-precision wire pull sensor, which are respectively used to detect the tilt and height data of the vertical rail, and to increase the inclination and height of the fork through real-time monitoring to achieve automated judgment.
It realizes efficient, fair and intuitive judgment of the lowest point of the forklift cargo forks off the ground, and improves the objectivity of the forklift test and the accuracy of the score.
Smart Images
Figure CN223122260U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of forklift truck examinations, in particular to a fork inclination and fork height detection device for forklift truck examinations. Background Technique
[0002] As an important transportation tool in places such as ports, docks, and warehouses, the safe operation of forklift trucks is of crucial importance. The forklift truck site examinations are becoming increasingly strict. On the one hand, it pursues the accuracy of judgment during the examination process. On the other hand, it pursues the objectivity and fairness of the examination scoring, ensuring that there is a basis for deductions and evidence for retroactive investigation.
[0003] The forklift truck forks are installed on vertical rails and can tilt forward, tilt backward, rise, and fall. During the actual operation examination of forklift truck drivers, the detection and determination of the minimum distance from the lowest point of the forklift truck forks to the ground (the minimum distance from the forks to the ground) is one of the difficulties. At present, the vast majority rely on manual judgment, which will inevitably affect the objectivity and fairness of the examination. Therefore, it is crucial to use information technology means to efficiently, intuitively, and fairly determine the lowest point of the forks from the ground during the actual operation examination of forklift truck drivers. Summary of the Invention
[0004] The purpose of the utility model is to solve the problem that in the prior art, the forklift truck forks are installed on vertical rails and can tilt forward, tilt backward, rise, and fall. During the actual operation examination of forklift truck drivers, the detection and determination of the minimum distance from the lowest point of the forklift truck forks to the ground (the minimum distance from the forks to the ground) is one of the difficulties. At present, the vast majority rely on manual judgment, which will inevitably affect the objectivity and fairness of the examination. Therefore, it is crucial to use information technology means to efficiently, intuitively, and fairly determine the lowest point of the forks from the ground during the actual operation examination of forklift truck drivers. A fork inclination and fork height detection device for forklift truck examinations is proposed.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A fork inclination and fork height detection device for forklift truck examinations includes a forklift truck body and a support frame. A support frame is rotatably arranged at the middle position of the front side surface of the forklift truck body. An intermediate plate is fixedly arranged at the middle position of the side surfaces of the two support frames. A weight reduction groove is formed on the side surface of the intermediate plate. A lifting hydraulic cylinder is vertically and fixedly arranged on the support frame. The output end of the lifting hydraulic cylinder is fixedly provided with a mounting frame. A guide wheel is rotatably connected to the inner cavity of the mounting frame. A vertical rail is fixedly arranged at the top of the mounting frame. A guide block is inserted into the vertical rail along the vertical direction. A lifting fork is arranged at the end of the guide block. A composite detection component for detecting the lifting height and inclination of the lifting fork is arranged at the middle position of the rear side surface of the support frame.
[0007] Optionally, the composite detection component includes a first high-precision wire-pulling sensor, a second high-precision wire-pulling sensor, and a fixing ring. The second high-precision wire-pulling sensor is fixedly arranged on the top of the forklift body.
[0008] Optionally, one end of the lifting rope is tied to the side of the support frame, and the other end of the lifting rope passes through the top of the guide wheel and is tied to both sides of the lifting fork.
[0009] Optionally, the output wire pulls of the second high-precision wire-pulling sensor and the first high-precision wire-pulling sensor are both fixed on a single fixing ring through locking bolts.
[0010] Optionally, the second high-precision wire-pulling sensor is fixedly arranged on the top of the forklift body, and the fixing ring at the end of the second high-precision wire-pulling sensor is fixedly arranged on the top of the middle plate.
[0011] Optionally, the first high-precision wire-pulling sensor is vertically and fixedly arranged at both ends of the side of the middle plate, and the fixing ring at the end of the first high-precision wire-pulling sensor is fixedly arranged on the top of the side of the vertical rail.
[0012] Compared with the prior art, the present utility model has the following advantages:
[0013] The present utility model installs and fixes a second high-precision wire-pulling sensor on the forklift body, fixes the end of the wire pull on the vertical rail for detecting the inclination data of the vertical rail. When the middle plate tilts forward or backward, the second high-precision wire-pulling sensor returns the detected wire pull distance value in real time. A first high-precision wire-pulling sensor is installed and fixed on both sides of the middle plate, and the end of the wire pull is fixed on the top of the ascending and descending vertical rail for detecting the height data of the vertical rail. When the vertical rail rises or falls, the first high-precision wire-pulling sensor returns the detected wire pull distance value in real time, and with the help of information means, it can efficiently, intuitively, and fairly determine the lowest point from the ground of the fork during the actual operation test of the forklift driver. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.
[0015] Figure 2 It is Figure 1 a schematic diagram of another perspective structure of
[0016] Figure 3 a schematic diagram of the structure of the first high-precision wire-pulling sensor and its connecting parts.
[0017] In the figure: 1, forklift truck body; 2, support frame; 21, middle plate; 210, weight reduction groove; 3, first high-precision wire drawing sensor; 4, second high-precision wire drawing sensor; 5, mounting frame; 51, guide wheel; 6, lifting hydraulic cylinder; 7, lifting rope; 8, lifting fork; 9, guide block; 10, vertical rail; 11, locking bolt; 12, fixing ring. Specific implementation mode
[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0019] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0020] Refer to Figures 1-3 , a device for detecting the inclination angle and height of a forklift fork for forklift driving tests, including a forklift truck body 1 and a support frame 2. The support frame 2 is rotatably arranged at the middle position of the front side surface of the forklift truck body 1. The middle plate 21 is fixedly arranged at the middle position of the side surface of the support frame 2. A weight reduction groove 210 is formed on the side surface of the middle plate 21. The lifting hydraulic cylinder 6 is vertically and fixedly arranged on the support frame 2. The output end of the lifting hydraulic cylinder 6 is fixedly provided with a mounting frame 5. A guide wheel 51 is rotatably connected to the inner cavity of the mounting frame 5. A vertical rail 10 is fixedly arranged at the top of the mounting frame 5. A guide block 9 is inserted into the vertical rail 10 along the vertical direction. The end of the guide block 9 is provided with a lifting fork 8.
[0021] A composite detection component for detecting the lifting height and inclination angle of the lifting fork 8 is arranged at the middle position of the rear side surface of the support frame 2. The composite detection component includes a first high-precision wire drawing sensor 3, a second high-precision wire drawing sensor 4, and a fixing ring 12. The second high-precision wire drawing sensor 4 is fixedly arranged on the top of the forklift truck body 1. One end of the lifting rope 7 is tied to the side surface of the support frame 2. The other end of the lifting rope 7 passes through the top of the guide wheel 51 and is tied to both side surfaces of the lifting fork 8. The output wires of the second high-precision wire drawing sensor 4 and the first high-precision wire drawing sensor 3 are both fixed on a single fixing ring 12 through locking bolts 11.
[0022] The second high-precision wire-pulling sensor 4 is fixedly arranged on the top of the forklift body 1, and the fixing ring 12 at the end of the second high-precision wire-pulling sensor 4 is fixedly arranged on the top of the intermediate plate 21. The first high-precision wire-pulling sensor 3 is vertically and fixedly arranged at both ends of the side surface of the intermediate plate 21, and the fixing ring 12 at the end of the first high-precision wire-pulling sensor 3 is fixedly arranged on the top of the side surface of the vertical rail 10.
[0023] It should be added that the first high-precision wire-pulling sensor 3 and the second high-precision wire-pulling sensor 4 are common sensors in the prior art, which are devices for measuring linear displacement and usually work through a thin wire wound around a drum. When the target object moves, the wire in the wire-pulling sensor is pulled out or wound in, so as to accurately measure the displacement. Such sensors are widely used in industrial automation, mechanical engineering and robotics, and can provide high-precision and reliable feedback signals.
[0024] The specific implementation steps and principles of the present utility model are as follows: The second high-precision wire-pulling sensor 4 is installed and fixed on the forklift body 1, and the end of the wire is fixed on the vertical rail 10 for detecting the inclination data of the vertical rail 10. When the intermediate plate 21 tilts forward or backward, the second high-precision wire-pulling sensor 4 immediately returns the detected wire distance value. A first high-precision wire-pulling sensor 3 is installed and fixed on both side surfaces of the intermediate plate 21, and the end of the wire is fixed on the top of the ascending and descending vertical rail 10 for detecting the height data of the vertical rail 10. When the vertical rail 10 rises or falls, the first high-precision wire-pulling sensor 3 immediately returns the detected wire distance value.
[0025] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. A fork inclination and fork height detection device for forklift examinations, comprising a forklift body (1) and a support frame (2), characterized in that, A support frame (2) is rotatably arranged at the middle position of the front side of the forklift truck body (1). A lifting hydraulic cylinder (6) is vertically and fixedly arranged on the support frame (2). Intermediate plates (21) are fixedly arranged at the middle positions of the sides of the two support frames (2). Weight reduction grooves (210) are formed in the sides of the intermediate plates (21). An installation frame (5) is fixedly arranged at the output end of the lifting hydraulic cylinder (6). A guide wheel (51) is rotatably connected to the inner cavity of the installation frame (5). A vertical rail (10) is fixedly arranged at the top of the installation frame (5). A guide block (9) is movably inserted into the vertical rail (10) in the vertical direction. A lifting fork (8) is arranged at the end of the guide block (9). A composite detection assembly for detecting the lifting height and inclination angle of the lifting fork (8) is arranged at the middle position of the rear side of the support frame (2).
2. The forklift tine inclination and forklift tine height detection device for forklift driving test according to claim 1, wherein, The composite detection assembly includes a first high-precision wire rope sensor (3), a second high-precision wire rope sensor (4), and a fixing ring (12). The second high-precision wire rope sensor (4) is fixedly arranged at the top of the forklift truck body (1).
3. The forklift tine inclination and tine height detection device for forklift driving tests according to claim 1, characterized in that, One end of a lifting rope (7) is tied to the side of the support frame (2). The other end of the lifting rope (7) passes through the top of the guide wheel (51) and is tied to both sides of the lifting fork (8).
4. A fork angle and fork height detection device for forklift examinations according to claim 2, characterized in that The output wires of the second high-precision wire rope sensor (4) and the first high-precision wire rope sensor (3) are both fixed to a single fixing ring (12) through locking bolts (11).
5. The fork angle and fork height detection device for forklift examinations according to claim 4, characterized in that, The second high-precision wire rope sensor (4) is fixedly arranged at the top of the forklift truck body (1). The fixing ring (12) at the end of the second high-precision wire rope sensor (4) is fixedly arranged at the top of the intermediate plate (21).
6. The forklift tine inclination and forklift tine height detection device for forklift driving test according to claim 5, characterized in that, The first high-precision wire rope sensor (3) is vertically and fixedly arranged at both ends of the side of the intermediate plate (21). The fixing ring (12) at the end of the first high-precision wire rope sensor (3) is fixedly arranged at the top of the side of the vertical rail (10).