Forklift minimum turning radius measuring device

By designing a magnetic chuck and a multi-section adjustment rod structure on the forklift, the problem of not being able to fix the marking points in some spaces on the forklift was solved, enabling stable marking on uneven ground, extending the service life of the marking device, and making adjustment convenient.

CN223897051UActive Publication Date: 2026-02-10ANHUI HELI CO LTD
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Patent Information

Application Number
CN202520451242.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-02-10
Estimated Expiration
2035-03-14

AI Technical Summary

Technical Problem

When measuring the minimum turning radius of a forklift, existing technology makes it difficult to fix the drawing structure at certain spatial points on the forklift, and the unevenness of the outdoor ground causes the drawing pen to fail to leave lines or to be worn out, which cannot meet the measurement requirements.

Method used

A device was designed that includes a magnetic chuck, a multi-section adjusting rod, a retainer, a pen holder, and a stone pencil. The magnetic chuck is used to attach to the surface of a forklift, and the multi-section adjusting rod and spring structure adapt to the unevenness of the ground to ensure that the tip of the stone pencil is always in contact with the ground. The position of the stone pencil in the pen holder is adjusted by adjusting the screw.

Benefits of technology

It enables stable line drawing in confined spaces and on uneven ground, with the pen tip always in contact with the ground, extending the lifespan of the line drawing device. It is also easy to adjust and highly adaptable.

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Abstract

The utility model relates to the technical field of data measurement, and discloses a forklift minimum turning radius measuring device which comprises a magnetic suction cup, a multi-section adjusting rod is arranged on the surface of the magnetic suction cup, a holder is fixed at the tail end of the multi-section adjusting rod, a limiting plate is fixed at the top of the holder, a pen container is arranged in the holder, and a limiting plate is fixed at the tail end of the holder. An adjusting screw is installed on the top of the pen container in a threaded mode, and a slate pen is arranged in the pen container in a sleeved mode. The problem that a line drawing structure cannot be assembled on part of space point positions of the forklift is solved, the ground line reserving effect is good, and adjustment is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of data measurement technology, and in particular to a device for measuring the minimum turning radius of a forklift. Background Technology

[0002] When measuring the minimum turning radius of a forklift, it is necessary to draw auxiliary lines on the ground according to the forklift's travel trajectory. Due to the compact structure of some parts of the forklift, it is often impossible to select a suitable fixed position for the pen under certain special drawing point requirements, resulting in the inability to draw lines. This problem urgently needs to be solved. In addition, the test site is often selected outdoors, where the ground is uneven. Ordinary pens cannot meet the line drawing requirements. On the ground depressions, the pen cannot leave lines due to the fixed installation position. On the ground elevations, the pen is broken due to the fixed installation position and cannot adapt to the ground. Furthermore, when the pen leaves lines on the ground, the pen tip wears down due to friction with the ground, causing the pen to not be usable for long. To solve the above problems, a forklift minimum turning radius measuring device was designed. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to propose a forklift minimum turning radius measuring device, which solves the problem that some spatial points on the forklift cannot be equipped with marking structures, resulting in good ground marking effects and convenient adjustment.

[0004] The forklift minimum turning radius measuring device proposed in this utility model includes a magnetic chuck, the surface of which is provided with multiple adjusting rods, the ends of which are fixed with a retainer, the top of which is fixed with a limit plate, a pen holder inside which is provided, an adjusting screw threaded on the top of which is installed, and a stone pen inside which is installed.

[0005] Preferably, the multi-section adjusting rod includes multiple support rods and multiple locking sleeves, wherein the support rods and locking sleeves are connected at intervals to form the multi-section adjusting rod.

[0006] Preferably, a protruding ring is provided on the surface of the pen holder and below the limiting plate, a first spring is sleeved on the surface of the pen holder and between the protruding ring and the limiting plate, and a second spring is sleeved on the surface of the pen holder and between the protruding ring and the inner bottom of the retainer.

[0007] Preferably, the retainer extends from the top and bottom of the pen holder, respectively.

[0008] The beneficial effects of this utility model are:

[0009] 1. When installing this line marking device, the magnetic chuck can be energized and attached to any available space on the surface of the forklift. Then, the multi-section adjustment rods can be adjusted to extend the stone pen into the narrow space and make it contact the ground at a suitable angle. Finally, the multi-section adjustment rods can be locked to fix the entire line marking device, solving the problem that the line marking structure cannot be installed at certain spatial points on the forklift.

[0010] 2. By installing the first and second springs to assist in supporting the pen holder, the pen holder and stone pen part of the drawing device can adapt to the unevenness of the ground and move up and down, so that the tip of the stone pen can always be in contact with the ground. Even when the tip of the stone pen wears down and becomes shorter, the tip of the stone pen can still adapt to contact with the ground, resulting in a good drawing effect. After the line is drawn, the stone pen can be pushed down into the pen holder by rotating the adjusting screw, leaving enough stone pen for the next line drawing operation. Adjustment is convenient. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the line drawing device structure of the forklift minimum turning radius measurement method and apparatus proposed in this invention.

[0012] Figure 2 This is a cross-sectional view of the cage of the forklift minimum turning radius measurement method and device proposed in this invention.

[0013] In the diagram: 1. Magnetic chuck; 2. Multi-section adjusting rod; 21. Support rod; 22. Locking sleeve; 3. Cage; 4. Limiting plate; 5. Pen holder; 6. Adjusting screw; 7. Stone pen; 8. First spring; 9. Second spring. Detailed Implementation

[0014] Reference Figure 1-2 The forklift minimum turning radius measuring device includes a magnetic chuck 1, which is an ELE-P45 / 30 small DC electromagnetic chuck 1. The surface of the magnetic chuck 1 is provided with multiple adjusting rods 2. The ends of the multiple adjusting rods 2 are fixed with a retainer 3. The top of the retainer 3 is fixed with a limit plate 4. The inside of the retainer 3 is a pen holder 5. The top of the pen holder 5 is threaded with an adjusting screw 6. The inside of the pen holder 5 is fitted with a stone pencil 7. Different colored stone pencils 7 can be fitted inside the pen holder 5.

[0015] The multi-section adjusting rod 2 includes multiple support rods 21 and multiple locking sleeves 22. Locking bolts are fitted through the surface of the locking sleeves 22. The connection between the locking sleeves 22 and the support rods 21 is adjusted by rotating the locking bolts. Both ends of the multi-section adjusting rod 2 are locking sleeves 22. The support rods 21 and locking sleeves 22 are connected at intervals to form the multi-section adjusting rod 2. The locking sleeves 22 are fixed to one end of the support rod 21, and the other end of the support rod 21 is inserted into another locking sleeve 22. This is how the multi-section adjusting rod 2 is connected end to end. When adjusting the multi-section adjusting rod 2, the locking sleeves 22 are loosened. At this time, the locking sleeves 22 can rotate on the surface of the support rods 21. After rotating to a suitable angle, the locking sleeves 22 are closed to realize the angle adjustment of that node. The adjustment operation is convenient.

[0016] A protruding ring is provided on the surface of the pen holder 5 and below the limiting plate 4. A first spring 8 is sleeved on the surface of the pen holder 5 between the protruding ring and the limiting plate 4. A second spring 9 is sleeved on the surface of the pen holder 5 between the protruding ring and the bottom of the retainer 3. The first spring 8 and the second spring 9 provide support for the protruding ring from both the top and bottom. The protruding ring is an integral structure on the surface of the pen holder 5. When the stone pen 7 inside the pen holder 5 is in contact with the ground, the first spring 8 and the second spring 9 cooperate to extend and retract according to the ground pressure, stabilizing the pen holder 5 and the stone pen 7 in a suitable position. When the stone pen 7 passes over uneven ground, the first spring 8 and the second spring 9 cooperate to extend and retract, adjusting the position of the pen holder 5 in time, so that the stone pen 7 can always maintain contact with the ground. Through the above structural design, the pen holder 5 and the stone pen 7 as a whole can move up and down within a certain range, always maintaining contact with the ground.

[0017] The top and bottom of the pen holder 5 each extend out a retainer 3.

[0018] The top of the pen holder 5 has a threaded hole that matches the adjusting screw 6. The top of the stone pen 7 contacts the bottom of the adjusting screw 6. By rotating the adjusting screw 6, the adjusting screw 6 moves up and down in the threaded hole. When the adjusting screw 6 rotates down, the bottom of the adjusting screw 6 presses against the stone pen 7, adjusting the position of the stone pen 7 inside the pen holder 5. When the adjusting screw 6 rotates up, it presses the stone pen 7 inside the pen holder 5 against the ground, squeezing the stone pen 7 to move up inside the pen holder 5 and contact the bottom of the adjusting screw 6.

[0019] The side wall of the retainer 3 is fixed with a mounting base that is connected and fixed to the multi-section adjusting rod 2, and the surface of the magnetic chuck 1 is fixed with a mounting post that is connected and fixed to the multi-section adjusting rod 2.

[0020] When using this device, place the line drawing device on the surface of the vehicle, power on the magnetic chuck 1, and the magnetic chuck 1 will adhere to the surface of the vehicle. Adjust the angle of the multi-section adjustment rod 2 so that the stone pen 7 of the line drawing device contacts the ground at the target point at a suitable tilt angle. Then, operate the vehicle to move, and the line drawing device will leave lines on the ground according to the vehicle's driving path.

Claims

1. A forklift minimum turning radius measuring device, characterized in that: The device includes a magnetic chuck, the surface of which is provided with multiple adjusting rods, the ends of which are fixed with a retainer, the top of which is fixed with a limit plate, a pen holder inside which is provided, an adjusting screw threaded onto the top of which is provided, and a stone pencil inside which is housed.

2. The forklift minimum turning radius measuring device according to claim 1, characterized in that: The multi-section adjusting rod includes multiple support rods and multiple locking sleeves, with the support rods and locking sleeves connected at intervals to form the multi-section adjusting rod.

3. The forklift minimum turning radius measuring device according to claim 1, characterized in that: A protruding ring is provided on the surface of the pen holder and below the limiting plate. A first spring is sleeved on the surface of the pen holder and between the protruding ring and the limiting plate. A second spring is sleeved on the surface of the pen holder and between the protruding ring and the bottom of the retainer.

4. The forklift minimum turning radius measuring device according to claim 1, characterized in that: The retainer extends from the top and bottom of the pen holder, respectively.