Pallet fork height detection device in forklift operation test

Abstract

The utility model discloses a fork height detection device in a forklift operation test, which comprises a door frame, a goods blocking frame is arranged on the front side surface of the door frame, a fork is fixedly connected to the front side surface of the goods blocking frame, mounting plates are fixedly connected to the left side surface and the right side surface of the goods blocking frame, laser emitters are arranged on the mounting plates, and the laser emitters are arranged on the left side surface and the right side surface of the goods blocking frame. Mounting frames are fixedly connected to the surfaces of the left side and the right side of the door frame, through grooves extending out of the surfaces of the rear sides of the mounting frames are formed in the surfaces of the front sides of the mounting frames, extending grooves are formed in the inner walls of the left side and the right side of each through groove, and a scale plate is slidably connected into each through groove; according to the utility model, the height of the pallet fork above the ground can be measured through the cooperation of the laser transmitter and the scale plate, and the height of the scale plate can be automatically adjusted by using the automatic adjusting assembly when the height of the portal frame changes, so that the problem of measurement errors caused by the change of the height of the portal frame above the ground is avoided.

Description

Technical Field

[0001] This utility model relates to a fork height detection device, specifically a fork height detection device used in forklift operation examinations. Background Technology

[0002] Forklifts are commonly used for loading, unloading, stacking, and short-distance transport of packaged goods, and are widely used in various warehouses.

[0003] Forklifts are essential transportation tools in ports, docks, warehouses, and other locations, and their safe operation is of paramount importance. Government departments are paying increasing attention to forklift safety and are becoming more stringent in forklift operation tests. In forklift practical tests, it is necessary to detect and judge the distance between the forks and the ground to assess whether the operator can accurately adjust the height of the forks according to different tasks. However, in existing technologies, the detection of the fork height is mostly done manually, which is inefficient and prone to errors. Therefore, we propose a fork height detection device for forklift operation tests. Utility Model Content

[0004] To address the shortcomings of existing technologies, such as insufficient detection efficiency and susceptibility to errors, this invention provides a fork height detection device for forklift operation examinations.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a fork height detection device for forklift operation testing, comprising a mast, a stop shelf on the front surface of the mast, forks fixedly connected to the front surface of the stop shelf, mounting plates fixedly connected to the left and right surfaces of the stop shelf, a laser emitter on the mounting plate, and mounting frames fixedly connected to the left and right surfaces of the mast. A through groove extending from the rear surface of the front surface of the mounting frame is formed, and extension grooves are formed on the inner walls of the left and right sides of the through groove. A scale plate is slidably connected inside the through groove, and the scale plate has graduations. A laser receiving groove extending from the rear surface of the scale plate is formed on the front surface of the scale plate, and an acrylic plate is fixedly connected to the inner wall of the laser receiving groove. An self-adjusting component is provided on the scale plate.

[0007] As a preferred embodiment of this utility model, the self-adjusting component includes two vertical rods, both of which are fixedly connected to the lower surface of the scale plate, and the lower ends of both vertical rods slide through the lower surface of the mounting frame.

[0008] As a preferred embodiment of this utility model, a roller is provided between the two vertical rods, a limiting rod is fixedly connected between the upper and lower inner walls of the extension groove, and limiting protrusions are fixedly connected to the left and right surfaces of the scale plate respectively.

[0009] As a preferred embodiment of this utility model, the two limiting protrusions are slidably sleeved on the outer surfaces of the two limiting rods, and a spring is fixedly connected to the top wall of the through groove.

[0010] As a preferred embodiment of this utility model, the lower end of the spring is fixedly connected to the upper surface of the scale plate, the front surface of the mounting plate is provided with an insertion groove extending out of its rear surface, the laser emitter is movably sleeved inside the insertion groove, and the front end of the laser emitter is fixedly connected to a limiting plate.

[0011] As a preferred embodiment of this utility model, the rear surface of the limiting plate is in contact with the front surface of the mounting plate, and the inner wall of the insertion groove on the mounting plate is provided with a cavity.

[0012] As a preferred embodiment of this utility model, a locking plate is slidably connected to the inner wall of the cavity. The locking plate is configured as an arc shape that fits against the outer surface of the laser emitter, and a fixing bolt is provided on the upper surface of the mounting plate.

[0013] As a preferred embodiment of this utility model, the lower end of the fixing bolt is threaded through the interior of the cavity, and the lower end of the fixing bolt is rotatably connected to the upper surface of the locking plate.

[0014] The beneficial effects of this utility model are: the fork height detection device in the forklift operation test can measure the height of the forks off the ground by using a laser emitter in conjunction with a scale plate. At the same time, by using an autonomous adjustment component, it can automatically adjust the height of the scale plate when the height of the mast changes, thereby avoiding the problem of measurement error caused by changes in the height of the mast off the ground.

[0015] The beneficial effects of this utility model are: the fork height detection device in the forklift operation test, through the cooperation of the locking plate and the fixing bolt, allows the staff to easily and quickly disassemble and install the laser transmitter when the laser transmitter is low on power or damaged, thus improving the efficiency of laser transmitter replacement. Attached Figure Description

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1This is a schematic diagram of the overall structure of a forklift height detection device for forklift operation examination according to this utility model;

[0018] Figure 2 This is a schematic diagram of the extension groove structure of a fork height detection device for forklift operation examination according to this utility model;

[0019] Figure 3 This is a schematic diagram of the back structure of the mast of a forklift height detection device for forklift operation examination according to this utility model;

[0020] Figure 4 This is a schematic diagram of the cavity cross-sectional structure of a forklift height detection device for forklift operation examination according to this utility model;

[0021] Figure 5 This utility model relates to a forklift operation test device for detecting fork height. Figure 3 Enlarged view of point A.

[0022] In the diagram: 1. Mast; 2. Backrest rack; 3. Forks; 4. Mounting plate; 5. Laser emitter; 6. Mounting frame; 7. Through slot; 8. Extension slot; 9. Scale plate; 10. Scale; 11. Laser receiver slot; 12. Vertical rod; 13. Roller; 14. Limiting rod; 15. Limiting protrusion; 16. Fixing bolt; 17. Spring; 18. Limiting plate; 19. Cavity; 20. Locking plate. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, this utility model discloses a fork height detection device for forklift operation testing, comprising a mast 1, a stop rack 2 provided on the front surface of the mast 1, forks 3 fixedly connected to the front surface of the stop rack 2, mounting plates 4 fixedly connected to the left and right surfaces of the stop rack 2, a laser emitter 5 provided on the mounting plate 4, and mounting frames 6 fixedly connected to the left and right surfaces of the mast 1. A through groove 7 extending from the rear surface of the front surface of the mounting frame 6 is formed, and extension grooves 8 are formed on the inner walls of the left and right sides of the through groove 7. The through groove 7 is internally slidably connected... A scale plate 9 is attached, and scales 10 are provided on the scale plate 9. A laser receiving groove 11 extending from the rear surface of the scale plate 9 is opened on the front surface of the scale plate 9. An acrylic plate is fixedly connected to the inner wall of the laser receiving groove 11. The scale plate 9 is equipped with an automatic adjustment component, which can measure the height of the fork 3 off the ground by working with the laser emitter 5 and the scale plate 9. At the same time, the automatic adjustment component can automatically adjust the height of the scale plate 9 when the height of the mast 1 changes, thereby avoiding the measurement error caused by the change in the height of the mast 1 off the ground.

[0025] The self-adjusting component includes two vertical rods 12, both of which are fixedly connected to the lower surface of the scale plate 9. The lower ends of the two vertical rods 12 slide through the lower surface of the mounting frame 6. A roller 13 is provided between the two vertical rods 12. A limiting rod 14 is fixedly connected between the upper and lower inner walls of the extension groove 8. Limiting protrusions 15 are fixedly connected to the left and right surfaces of the scale plate 9, respectively. The two limiting protrusions 15 are slidably sleeved on the outer surfaces of the two limiting rods 14. A spring 17 is fixedly connected to the top wall of the through groove 7. The lower end of the spring 17 is fixedly connected to the upper surface of the scale plate 9. An insertion groove extending from the rear surface of the mounting plate 4 is opened on the front surface. The laser emitter 5 is movably sleeved inside the insertion groove. The front end of the laser emitter 5 is fixedly connected to a limiting plate 18. The rear surface of the limiting plate 18 contacts the front surface of the mounting plate 4. A cavity 19 is provided in the inner wall of the insertion slot. A locking plate 20 is slidably connected to the inner wall of the cavity 19. The locking plate 20 is set in an arc shape that fits against the outer surface of the laser emitter 5. A fixing bolt 16 is provided on the upper surface of the mounting plate 4. The lower end of the fixing bolt 16 is threaded through the cavity 19. The lower end of the fixing bolt 16 is rotatably connected to the upper surface of the locking plate 20. Through the cooperation of the locking plate 20 and the fixing bolt 16, when the laser emitter 5 is low on power or damaged, the staff can easily and quickly disassemble and install the laser emitter 5, thus improving the efficiency of replacing the laser emitter 5.

[0026] The laser emitter 5 described in the text is aligned with the laser receiving slot 11, and the light transmittance of the acrylic plate is 90%, and the starting scale mark on the scale 10 has taken into account the height of the vertical rod 12 and the roller 13.

[0027] During operation, when measuring height, a laser is first emitted by the laser emitter 5. After the laser is emitted, it enters the laser receiving slot 11 and illuminates the acrylic plate. The red dot formed by the laser on the acrylic plate, in conjunction with the scale 10, is used to read the current height of the fork 3. When the height of the mast 1 changes from the ground height, or when the height measuring device is installed for the first time, the spring force of the spring 17 and the weight of the scale plate 9 itself drive the vertical rod 12 to descend. After the vertical rod 12 descends, the roller 13 contacts the ground. The spring force of the spring 17 ensures that the roller 13 remains in contact with the ground. Since the height of the vertical rod 12 and the roller 13 has been calculated in the scale 10, the height of the scale plate 9 will always be in the correct position and can be adjusted automatically according to the height of the gantry 1. When the laser emitter 5 is low on power or damaged, the locking plate 20 can be disengaged from the laser emitter 5 by rotating the fixing bolt 16, and then the laser emitter 5 can be pulled out. When installing the laser emitter 5, insert the laser emitter 5 into the insertion slot and make the limiting plate 18 fit with the mounting plate 4. Then, fix the laser emitter 5 again with the fixing bolt 16 and the locking plate 20.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A forklift height detection device for forklift operation testing, comprising a mast (1), characterized in that: A baffle (2) is provided on the front surface of the gantry (1). A fork (3) is fixedly connected to the front surface of the baffle (2). Mounting plates (4) are fixedly connected to both the left and right sides of the baffle (2). A laser emitter (5) is provided on the mounting plate (4). Mounting frames (6) are fixedly connected to both the left and right sides of the gantry (1). A through groove (7) extending out of its rear side is opened on the front surface of the mounting frame (6). Extension grooves (8) are opened on the inner walls of both the left and right sides of the through groove (7). A scale plate (9) is slidably connected inside the through groove (7). A scale (10) is provided on the scale plate (9). A laser receiving groove (11) extending out of its rear side is opened on the front surface of the scale plate (9). An acrylic plate is fixedly connected to the inner wall of the laser receiving groove (11). An self-adjusting component is provided on the scale plate (9).

2. The fork height detection device for forklift operation examination according to claim 1, characterized in that: The self-adjusting component includes two vertical rods (12), both of which are fixedly connected to the lower surface of the scale plate (9), and the lower ends of both vertical rods (12) slide through the lower surface of the mounting frame (6).

3. The fork height detection device for forklift operation examination according to claim 2, characterized in that: A roller (13) is provided between the two vertical rods (12), a limiting rod (14) is fixedly connected between the upper and lower inner walls of the extension groove (8), and a limiting protrusion (15) is fixedly connected to the left and right surfaces of the scale plate (9).

4. The fork height detection device for forklift operation examination according to claim 3, characterized in that: The two limiting protrusions (15) are slidably sleeved on the outer surfaces of the two limiting rods (14), and the top wall of the through groove (7) is fixedly connected with a spring (17).

5. The fork height detection device for forklift operation examination according to claim 4, characterized in that: The lower end of the spring (17) is fixedly connected to the upper surface of the scale plate (9). The front surface of the mounting plate (4) is provided with an insertion groove extending out of its rear surface. The laser emitter (5) is movably sleeved inside the insertion groove. The front end of the laser emitter (5) is fixedly connected to a limiting plate (18).

6. The fork height detection device for forklift operation examination according to claim 5, characterized in that: The rear surface of the limiting plate (18) is in contact with the front surface of the mounting plate (4), and the inner wall of the insertion groove on the mounting plate (4) is provided with a cavity (19).

7. A forklift operation test forklift height detection device according to claim 6, characterized in that: The inner wall of the cavity (19) is slidably connected to a locking plate (20), the locking plate (20) is configured to be arc-shaped and fit against the outer surface of the laser emitter (5), and the upper surface of the mounting plate (4) is provided with fixing bolts (16).

8. A forklift height detection device for forklift operation examination according to claim 7, characterized in that: The lower end of the fixing bolt (16) is threaded through the interior of the cavity (19), and the lower end of the fixing bolt (16) is rotatably connected to the upper surface of the locking plate (20).

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