Self-adjusting tray lifting appliance for forklift

Abstract

The utility model relates to a self-adjusting pallet hanger for a forklift, which comprises an upper arm welding piece, the upper arm welding piece is in an inverted L shape, the top end of the upper arm welding piece is in sliding connection with a hanging bracket, the bottom end of the upper arm welding piece is fixedly connected with a guide rod, the guide rod is in sliding connection with a fork-shaped welding piece through a sliding hole, and the fork-shaped welding piece is fixedly connected with the hanging bracket. The two sets of fork-shaped weldments are symmetrically arranged with the upper arm weldment as the center, the two sets of fork-shaped weldments are both connected with adjusting assemblies, each adjusting assembly comprises an electric lead screw and a connecting block, the electric lead screws are rotationally connected with the upper arm weldment and arranged on the sides, away from the fork-shaped weldments, of the guide rods, and the electric lead screws are rotationally connected with the upper arm weldment and arranged on the sides, away from the fork-shaped weldments, of the guide rods with the upper arm weldment as the center. The directions of the threads on the two sides are opposite, and the two fork-shaped weldments are rotationally connected with the electric lead screw through connecting blocks. And through the electric lead screws arranged in the two directions, the distance between the two sets of fork-shaped weldments can be conveniently adjusted, cargoes with different lengths can be conveniently and effectively hoisted, and the application range of the hoisting tool is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift spreader design, in particular to a self-adjusting forklift pallet spreader. Background Art

[0002] A forklift spreader, also known as a forklift lifting clamp, is a lifting device added to a forklift to assist the forklift in lifting operations. Common types of forklift spreaders include oil barrel lifting tongs, double-chain oil barrel lifting tongs, double-chain four-claw clamps, plastic and iron barrel lifting tongs, etc. These spreaders usually have the characteristics of being suitable for both iron and plastic, and can adapt to goods of different materials and weights.

[0003] The utility model with the patent publication number CN216889710U discloses a spreader for forklift leg assembly, including a spreader skeleton, the spreader skeleton is in a frame structure with one end open; the spreader skeleton includes an upper cross beam and a supporting beam, a limiting member for limiting the forklift leg is movably connected to the supporting beam, and a connecting member for connecting a crane is connected to the top side of the upper cross beam; the length of the supporting beam is set to be greater than the length of the upper cross beam. The structure of the utility model is simple and has strong compatibility. The forklift leg is preliminarily supported and fixed by the spreader skeleton with a frame structure having an opening, and then the forklift leg is tightly fixed by the limiting member movably connected to the bearing surface of the supporting beam, so that the lifting safety of the leg is higher.

[0004] Combined with the analysis of the legend, it is found that the supporting beam of this spreader is directly fixedly connected to the lifting skeleton, and the distance between the two supporting beams cannot be changed. When the length of the goods to be lifted is less than the distance between the supporting beams, there is a problem that it cannot be lifted. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a self-adjusting forklift pallet spreader to solve the problems raised in the above background.

[0006] To solve the above technical problems, the utility model provides a self-adjusting forklift pallet spreader, including an upper arm welding part, the upper arm welding part is in an inverted L shape, a suspension bracket is slidably connected to the top end of the upper arm welding part, a guide rod is fixedly connected to the bottom end of the upper arm welding part, a fork-shaped welding part is slidably connected to the guide rod through a sliding hole, two groups of fork-shaped welding parts are symmetrically arranged with the upper arm welding part as the center, and both groups of fork-shaped welding parts are connected with an adjusting component.

[0007] Furthermore, the adjusting component includes an electric screw rod and a connecting block. The electric screw rod is rotatably connected to the upper arm welding part and is arranged on the side of the guide rod away from the fork-shaped welding part, and the thread directions on both sides are opposite with the upper arm welding part as the center. Both groups of fork-shaped welding parts are rotatably connected to the electric screw rod through the connecting block.

[0008] Furthermore, a moving groove is provided at the top end of the upper arm welding part. A positioning rod is arranged in the middle of the moving groove. A wavy groove is provided at the lower end of the positioning rod. A circular hanging hole is provided in the upper half of the hanging frame, and a through hole is provided in the lower half to cooperate with the positioning rod, and the positioning rod passes through the through hole.

[0009] Furthermore, on one side where the two fork-shaped welding parts are far away from each other, a positioning plate is detachably connected by bolts. The positioning plate is L-shaped.

[0010] Furthermore, a plurality of groups of ball bearings are provided on the contact surfaces between the sliding holes and the guide rods, and sliding grooves are provided on the guide rods to cooperate with the ball bearings.

[0011] Furthermore, stoppers are provided on both sides of the hanging frame, and the total horizontal width of both sides of the stoppers is greater than the width of the moving groove. The vertical width of the through hole is greater than the width of the widest part of the positioning rod in the vertical direction.

[0012] The beneficial effects of the present utility model are as follows:

[0013] Through the electrically driven lead screws arranged in two directions, the distance between the two fork-shaped welding parts can be conveniently adjusted, and goods of different lengths can be conveniently and effectively hoisted, improving the applicable range of the lifting tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described below with reference to the drawings and embodiments.

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the structural schematic diagram of one side of the present utility model;

[0017] Figure 3 is the rear view of the present utility model;

[0018] Figure 4 is the structural schematic diagram of the fork-shaped welding part of the present utility model;

[0019] Figure 5 is the structural schematic diagram of the upper end of the upper arm welding part of the present utility model;

[0020] Figure 6 is the sectional view of the upper end of the upper arm welding part of the present utility model.

[0021] In the figure: 1. Upper arm welding part; 101. Guide rod; 102. Fork-shaped welding part; 2. Adjusting assembly; 201. Electrically driven lead screw; 202. Connecting block; 203. Sliding hole; 204. Ball bearing; 205. Sliding groove; 3. Hanging frame; 301. Moving groove; 302. Positioning rod; 303. Through hole; 4. Positioning plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0023] As Figures 1 to 6 shown, the present utility model provides an adjustable pallet sling for a forklift, including an upper arm welding part 1. The upper arm welding part 1 is in an inverted L shape. A hanging frame 3 is slidably connected to the top end of the upper arm welding part 1 for lifting the sling. A guide rod 101 is fixedly connected to the bottom end of the upper arm welding part 1. The guide rod 101 is slidably connected to a fork-shaped welding part 102 through a sliding hole 203, which is responsible for carrying goods. Two groups of fork-shaped welding parts 102 are symmetrically arranged with the upper arm welding part 1 as the center, and both groups of fork-shaped welding parts 102 are connected with an adjusting assembly 2.

[0024] As Figures 1 - 4 shown, the adjusting assembly 2 includes an electric screw rod 201 and a connecting block 202. The electric screw rod 201 is rotatably connected to the upper arm welding part 1 and is arranged on the side of the guide rod 101 away from the fork-shaped welding part 102, and with the upper arm welding part 1 as the center, the thread directions on both sides are opposite. The two groups of fork-shaped welding parts 102 are rotatably connected to the electric screw rod 201 through the connecting block 202. When the electric screw rod 201 is started, it can control the two groups of fork-shaped welding parts 102 to move closer to or away from each other. A plurality of groups of balls 204 are arranged on the contact surface between the sliding hole 203 and the guide rod 101. The guide rod 101 is provided with a sliding groove 205 in cooperation with the balls 204. The balls 204 cooperate with the sliding groove 205, which can effectively reduce the friction between the sliding hole 203 and the guide rod 101, making the movement of the fork-shaped welding part 102 smoother.

[0025] As Figure 5 and Figure 6 shown, a moving groove 301 is opened at the top end of the upper arm welding part 1. A positioning rod 302 is arranged in the middle of the moving groove 301. A wavy groove is arranged at the lower end of the positioning rod 302. A circular lifting hole is opened in the upper half of the hanging frame 3 for conveniently lifting the sling. A through hole 303 is opened in the lower half in cooperation with the positioning rod 302, and the positioning rod 302 passes through the through hole 303. Controlling the hanging frame 3 to move on the positioning rod 302 through the through hole 303 can change the position of the hanging frame 3. Specifically, when the weight of the goods is different, the center of gravity position of the goods and the sling is also different. Changing the position of the hanging frame 3 can more conveniently lift the goods. Blocks are arranged on both sides of the hanging frame 3, and the total horizontal width of both sides of the blocks is greater than the width of the moving groove 301. The vertical width of the through hole 303 is greater than the vertical maximum width of the positioning rod 302.

[0026] As Figure 1 and Figure 2As shown, on the sides of the fork-shaped welded part 102 that are away from each other, a positioning plate 4 is detachably connected by bolts. The positioning plate 4 is L-shaped. When long-distance cargo transportation is required, the positioning plates 4 can be installed on both sides of the fork-shaped welded part 102 to stabilize the cargo. At the same time, the positioning plate 4 can also be laid flat. After aligning the long side of the L shape horizontally with the fork-shaped welded part 102 and then connecting it to the fork-shaped welded part 102 by bolts, the stress area of the fork-shaped welded part 102 in the horizontal direction can be increased, making the transportation of longer cargo more stable.

[0027] Specifically, when hoisting cargo, the crane hoists the lifting tool through the hanger 3, controls the operation of the electric lead screw 201, and adjusts the distance between the two groups of fork-shaped welded parts 102 to facilitate lifting the cargo. Subsequently, the cargo can be transported to a specific location.

[0028] Based on the ideal embodiments of the present invention as the inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A self-adjusting pallet hanger for a forklift, comprising an upper arm welding part (1), the upper arm welding part (1) is in an inverted L-shape, the top end of the upper arm welding part (1) is slidably connected to a hanger (3), the bottom end of the upper arm welding part (1) is fixedly connected to a guide rod (101), the guide rod (101) is slidably connected to a fork-shaped welding part (102) through a sliding hole (203), and two groups of fork-shaped welding parts (102) are symmetrically arranged around the upper arm welding part (1), characterized in that: Both groups of the fork-shaped weldments (102) are connected to an adjustment assembly (2).

2. A self-adjusting forklift pallet spreader as claimed in claim 1, characterized in that: The adjustment assembly (2) comprises an electric screw (201) and a connecting block (202); the electric screw (201) is rotatably connected to the upper arm welding piece (1) and is arranged on a side of the guide rod (101) away from the fork-shaped welding piece (102), and is centered on the upper arm welding piece (1), with the threads on both sides having opposite directions, and the two groups of fork-shaped welding pieces (102) are rotatably connected to the electric screw (201) via the connecting block (202).

3. The self-adjusting forklift pallet spreader according to claim 1, characterized in that: The upper arm welding part (1) has a moving groove (301) at the top, a positioning rod (302) in the middle of the moving groove (301), a wave-shaped groove at the lower end of the positioning rod (302), a circular hanging hole at the upper half of the hanger (3), and a through hole (303) in the lower half to cooperate with the positioning rod (302), and the positioning rod (302) passes through the through hole (303).

4. The self-adjusting forklift pallet spreader according to claim 1, characterized in that: The two groups of fork-shaped weldments (102) are also detachably connected to a positioning plate (4) via bolts on the sides away from each other, and the positioning plate (4) is L-shaped.

5. The self-adjusting forklift pallet spreader according to claim 1, characterized in that: The contact surfaces of the sliding hole (203) and the guide rod (101) are both provided with a plurality of groups of balls (204), and the guide rod (101) is provided with a sliding groove (205) in coordination with the balls (204).

6. The self-adjusting forklift pallet spreader according to claim 3, characterized in that: Blocks are provided on both sides of the hanger (3), and the total transverse width of the blocks on both sides is greater than the width of the moving groove (301), and the longitudinal width of the through hole (303) is greater than the longitudinal width of the widest part of the positioning rod (302).

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