Sheet transfer lifting appliance
By adding adjustment beams and booster springs to the fork-tip spreader to form a triangular structure, the problems of operation difficulties and safety risks of thin plate spreader are solved, and the convenience and stability of lifting are achieved.
Patent Information
- Application Number
- CN202422167401.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-04
AI Technical Summary
During the loading and unloading process of existing thin plate spreaders, it is difficult to fine-tune the position, and it is difficult to operate and has safety risks.
The adjustment beam and booster spring are added to the fork-tip spreader to form a triangular structure, and the position and pitch of the spreader are adjusted by the spring's elastic force to adapt to the center of gravity of the cargo.
It improves the operation convenience and safety of the spreader, ensures lifting stability, and adapts to goods of different sizes.
Smart Images
Figure CN223254704U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of loading and unloading equipment, in particular to a thin plate transfer sling. Background Art
[0002] When loading and unloading cargo at ports, cranes are typically used with specialized lifting gear. Cranes have a large load capacity and height, allowing them to lift containers or other cargo high up and then maneuver them into the ship's hold for loading and unloading. Due to their flexibility and quick response, cranes are particularly suitable for the rapid loading and unloading of smaller cargoes.
[0003] Currently, thinner panels, such as formwork and steel plates, are typically stacked and bundled when transported on ships. The bundles are then stacked as units in the cargo area, separated by wooden planks. For this type of transportation, a forklift-like spreader is typically used for loading and unloading. The spreader consists of a hanger frame and multiple tines below it. The hanger frame is suspended from a crane hook. The tines are inserted through the wooden planks into the gaps between the bundles, lifting the bundles as the crane lifts.
[0004] However, for thin plates, after being stacked for a long time, the plates are supported by wooden planks. Under the action of gravity, the middle position of the support point will become concave, and the distance between the upper and lower plate bundles will become smaller, making it difficult for the fork tines to enter. The staff needs to hold the sling by hand to fine-tune the pitch and up and down position of the fork tines. However, the sling is usually a steel structure, and the overall height is nearly one person high. It is heavy and will shake at the lifting point. The adjustment operation is difficult and there are certain safety risks. Summary of the Invention
[0005] The utility model aims to solve the problem that it is difficult to fine-tune the position of a sling during the current loading, unloading and transportation of thin plates, and provides a thin plate transportation sling.
[0006] To address the aforementioned issues, the present invention employs a technical solution comprising a thin plate transfer spreader comprising a spreader body, the spreader body comprising a fork assembly and a beam assembly, the fork assembly being mounted to the lower end of the beam assembly, an adjustment beam being hingedly mounted to the upper end of the beam assembly, and a booster spring being provided between the adjustment beam and the beam assembly. This solution enhances the fork-tine spreader by adding a movable adjustment beam and providing a booster spring between the adjustment beam and the beam assembly. The spring's elastic force reduces the force required to adjust the spreader body, making the spreader body more flexible, convenient, and safer to use.
[0007] Preferably, the lifting beam assembly is L-shaped, comprising a first horizontal beam and a vertical beam. The first end of the first horizontal beam is fixedly connected to the upper end of the vertical beam, and the fork assembly is mounted on the lower end of the vertical beam. The lower end of the adjustment beam is hinged to the second end of the first horizontal beam, and the rotation plane of the adjustment beam is the plane of the L-shape of the lifting beam assembly. This allows the lifting point to move toward the center of the fork tines, adapting to the center of gravity of the cargo, and ensuring more stable lifting.
[0008] Preferably, the first crossbeam is provided with lower hanging points on both sides, and the adjustment beam is provided with upper hanging points on both sides, with booster springs connected between the upper and lower hanging points on the corresponding sides. The booster springs on both sides increase the auxiliary elastic force and balance the forces at both ends of the hinge shaft.
[0009] Preferably, the lower hanging point is close to the second end of the first crossbeam; the upper hanging point is close to the upper end of the adjustment beam. The assist spring, the first crossbeam, and the adjustment beam form a triangular structure, which allows for more complete elastic release and more stable suspension.
[0010] Preferably, the fork assembly includes a second crossbeam, which is perpendicular to the first crossbeam, the middle part of the second crossbeam is fixedly connected to the lower end of the vertical beam, and both ends of the second crossbeam are connected with fork tines, which are located below the first crossbeam.
[0011] Preferably, a sleeve is provided at one end of the tine, the sleeve being sleeved on the outside of the second crossbeam and being able to slide along the second crossbeam, and a locking assembly being provided between the sleeve and the second crossbeam, so that the spacing between the tines can be adjusted to accommodate cargo of different sizes.
[0012] Preferably, the locking assembly includes a bolt, a first locking hole is provided on the sleeve, a plurality of second locking holes are provided on the second beam along its length direction, one of the first locking hole and the second locking hole is processed with an internal thread, and the bolt is installed in the first locking hole and the second locking hole.
[0013] It can be seen from the above technical solutions that the advantages of the present invention are as follows: the present invention improves the current fork-tooth sling, and arranges an adjustment beam and an assist spring at the suspension point. The adjustment beam, the assist spring and the first crossbeam on the top of the sling body form a triangular structure. The sling body is lifted by the assist spring, and the operator can adjust the position and pitch state of the sling body with less force, which makes it more convenient and quick to use, and improves safety. Through structural design, it adapts to the center of the hoisted cargo, and can adapt to the center of gravity of the cargo through the swing beam and the spring, making the sling more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0015] Figure 1 It is a structural diagram of a specific implementation method of the utility model.
[0016] Figure 2 It is a side view of a specific embodiment of the present utility model.
[0017] Description of main reference numerals
[0018] 1. Adjusting beam, 2. Power assist spring, 3. First crossbeam, 4. Vertical beam, 5. Second crossbeam, 6. Fork tine, 6-1. Sleeve, 7. Bolt. DETAILED DESCRIPTION
[0019] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.
[0020] like Figure 1 、 2 As shown, a thin plate transport spreader includes a spreader body, the spreader body includes a fork assembly and a beam assembly, the beam assembly is L-shaped, including a first crossbeam 3 and a vertical beam 4, the first end of the first crossbeam 3 is fixedly connected to the upper end of the vertical beam 4, the fork assembly is installed at the lower end of the vertical beam 4, the fork assembly includes a second crossbeam 5, the midpoint of the second crossbeam 5 is fixedly connected to the lower end of the vertical beam 4, the second crossbeam 5 is perpendicular to the first crossbeam 3, and fork teeth 6 are respectively provided on both sides of the first crossbeam 3. Specifically, one end of the fork tooth is provided with a sleeve 6-1. The sleeve 6-1 is sleeved on the outside of the second beam 5, and the sleeve 6-1 can slide along the second beam 5. A locking assembly is provided between the sleeve 6-1 and the second beam 5. In this embodiment, the locking assembly includes a bolt 7. A first locking hole is provided on the sleeve 6-1, and a plurality of second locking holes are provided on the second beam 5 along its length. One of the first locking hole and the second locking hole is processed with an internal thread. The bolt 7 is installed in the first locking hole and the second locking hole, and the fork tine 6 is located below the first beam.
[0021] An adjustment beam 1 is hingedly installed at the upper end of the suspension beam assembly, and the lower end of the adjustment beam 1 is hinged to the second end of the first beam 3. The rotation plane of the adjustment beam 1 is the L-shaped plane of the suspension beam assembly. Lower hanging points are respectively provided on both side surfaces of the first beam 3, and upper hanging points are respectively provided on both side surfaces of the adjustment beam 1. Assist springs 2 are respectively connected between the upper and lower hanging points on the corresponding sides. The lower hanging point is close to the second end of the first beam 3; the upper hanging point is close to the upper end of the adjustment beam 1.
[0022] Through the above technical analysis, it can be seen that the beneficial effect of the utility model is that this scheme improves the current fork-tooth spreader, and an adjustment beam and an assist spring are set at the suspension. The adjustment beam, the assist spring and the first crossbeam on the top of the spreader body form a triangular structure. The spreader body is lifted by the assist spring, and the operator can adjust the position and pitch state of the spreader body with less force. It is more convenient and quick to use and improves safety. Through structural design, it adapts to the center of the hoisted goods, and the center of gravity of the goods can be adapted to the swing beam and the spring, making the spreader more stable.
[0023] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A thin plate transfer spreader, comprising a spreader body, characterized in that: The sling body includes a fork assembly and a beam assembly. The fork assembly is installed at the lower end of the beam assembly. An adjustment beam is hingedly installed at the upper end of the beam assembly. A booster spring is provided between the adjustment beam and the beam assembly.
2. The thin plate transfer spreader according to claim 1, characterized in that: The hanging beam assembly is L-shaped and includes a first horizontal beam and a vertical beam. The first end of the first horizontal beam is fixedly connected to the upper end of the vertical beam, and the fork assembly is installed at the lower end of the vertical beam; the lower end of the adjustment beam is hinged to the second end of the first horizontal beam, and the rotation plane of the adjustment beam is the plane where the L-shape of the hanging beam assembly is located.
3. The thin plate transfer spreader according to claim 2, characterized in that: Lower hanging points are respectively provided on both sides of the first crossbeam, and upper hanging points are respectively provided on both sides of the adjustment beam. Assist springs are respectively connected between the upper hanging point and the lower hanging point on the corresponding side.
4. The thin plate transfer spreader according to claim 3, characterized in that: The lower hanging point is close to the second end of the first beam; the upper hanging point is close to the upper end of the adjusting beam.
5. The thin plate transfer spreader according to claim 4, characterized in that: The fork assembly includes a second crossbeam, which is perpendicular to the first crossbeam. The middle part of the second crossbeam is fixedly connected to the lower end of the vertical beam. Both ends of the second crossbeam are connected with fork teeth, and the fork teeth are located below the first crossbeam.
6. The thin plate transfer spreader according to claim 5, characterized in that: A sleeve is provided at one end of the fork tine. The sleeve is sleeved on the outside of the second crossbeam. The sleeve can slide along the second crossbeam. A locking assembly is provided between the sleeve and the second crossbeam.
7. The thin plate transfer spreader according to claim 6, characterized in that: The locking assembly includes a bolt, a first locking hole is opened on the sleeve, and a plurality of second locking holes are provided on the second crossbeam along its length direction. One of the first locking hole and the second locking hole is processed with an internal thread, and the bolt is installed in the first locking hole and the second locking hole.