Pallet fork of telescopic arm forklift

Abstract

The invention relates to the technical field of forks. The telescopic arm forklift pallet fork comprises a pallet fork frame, the pallet fork frame is connected with a pallet fork body through a pallet fork limiting structure, and the pallet fork body is of a single straight rod structure; the fork arm carrier comprises a cross rod, and the two ends of the cross rod are connected with vertical rods respectively. The pallet fork limiting structure comprises a mounting rod and a limiting rod, and the mounting rod and the limiting rod are both connected with the vertical rod; the mounting rod is arranged on the front side of the limiting rod, and the pallet fork is connected with the mounting rod; a plurality of fixing rods are arranged on the limiting rod, the plurality of fixing rods are vertically connected with the cross rod, and at least one fixing rod is connected with the mounting rod; the pallet forks are arranged at the two ends of the mounting rod, and a mounting hole is formed in one end of each pallet fork. A contact limiting section is reserved between the mounting hole and the root part of the pallet fork; and the contact limiting section is matched with the pallet fork limiting structure to work. The pallet fork is simple in structure, lighter in weight under the same performance and lower in machining cost; and the fork is more labor-saving and safer when being withdrawn.

Description

Technical Field

[0001] This invention relates to the field of forklift technology. Background Technology

[0002] There are two structural designs for the forks of telescopic forklifts, as follows: One type of fork is forged from a single piece, with the vertical and horizontal sections forged together. It is mounted on the fork carriage using a hook or sleeve at the end of the vertical section. Two forks are used in pairs, and this type is widely used. Figure 1 As shown.

[0003] Another type of fork consists of a vertical section and a horizontal section hinged together. The vertical section is mounted on the fork carriage using two hooks or sleeves, while the horizontal section is supported and limited at the hinge point. Two forks are used in pairs. Figure 2 As shown.

[0004] The inventors have discovered at least the following problems in the prior art: The first structural design, where the vertical and horizontal sections are forged as a single piece, requires ensuring that the two forks are mounted flush on the fork carriage. This necessitates a high degree of consistency in the angles between the vertical and horizontal sections, increasing the forging difficulty and processing costs. Furthermore, when the forklift is in motion, the forks need to be manually flipped backward to retract. The integrated forging structure of the vertical and horizontal sections results in a large overall mass and a long flipping distance, making it quite strenuous in actual operation and posing a risk of the forks slipping out of one's hands and causing injury.

[0005] The second structural design involves hinged vertical and horizontal fork sections. The hinge point serves as the fulcrum for the horizontal fork, allowing it to rotate around this point. The rotation of the horizontal fork is restricted by the lower structure of the vertical fork, ensuring that the two forks are perpendicular under load. This contact point acts as the resistance point for the horizontal fork. However, this design results in a shorter distance between the fulcrum and resistance point, leading to a smaller resistance arm. Furthermore, the hinged structure weakens the overall strength of the fork, causing the supporting section to experience significantly higher torque than other parts under heavy loads. This uneven stress distribution increases the risk of breakage over prolonged use. Additionally, the overall structure is complex and heavy. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a telescopic forklift fork, including a fork carriage, wherein the fork carriage is connected to forks via a fork limiting structure, and the forks are single straight rods; the fork carriage includes a crossbar, with vertical rods connected to both ends of the crossbar; the fork limiting structure includes a mounting rod and a limiting rod, both of which are connected to the vertical rods; the mounting rod is located on the front side of the limiting rod, and the forks are connected to the mounting rod; the limiting rod is provided with multiple fixing rods, all of which are perpendicularly connected to the crossbar, and at least one fixing rod is connected to the mounting rod; the forks are symmetrically arranged at both ends of the mounting rod, and a mounting hole is provided at one end of the fork; a contact limiting section is left between the mounting hole and the root of the fork, and the contact limiting section cooperates with the fork limiting structure.

[0007] The mounting rod and the limiting rod are used to connect and fix the bottom of the vertical rod.

[0008] The forks are connected to the mounting rod via mounting holes.

[0009] The cross-section of the limiting rod is triangular or rectangular.

[0010] The fork limiting structure is a horizontal limiting structure.

[0011] The fork fulcrum and resistance point of the fork limiting structure are arranged horizontally.

[0012] There are three fixing rods, and the second fixing rod is connected to the mounting rod.

[0013] The contact limiting segment makes contact with the limiting rod for limiting.

[0014] Compared with the prior art, the present invention has a simple fork structure, is lighter in weight and has a lower processing cost for the same performance; and the forks are easier and safer to retract.

[0015] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0017] Figure 1 It is the first structure in the existing technology; Figure 2 It is the second structure in the prior art; Figure 3 This is a schematic diagram of the structure of the present invention; Figure 4 This is a cross-sectional view of the present invention.

[0018] In the diagram: 1-Fork carriage, 2-Forks, 3-Fork limiting structure. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the embodiments of this invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details are presented in the embodiments of this invention to facilitate a better understanding of this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments. The division of the following embodiments is for ease of description and should not constitute any limitation on the specific implementation of this invention. The embodiments can be combined with and referenced by each other without contradiction.

[0020] Example 1 like Figure 3 and 4 The diagram shows a telescopic forklift fork, including a fork carriage 1. The fork carriage 1 is connected to forks 2 via a fork limiting structure 3. The forks 2 are single straight rods. The fork carriage 1 includes a crossbar, with vertical rods connected to both ends of the crossbar. The fork limiting structure 3 includes a mounting rod and a limiting rod, both of which are connected to the vertical rods. The mounting rod is located on the front side of the limiting rod, and the forks 2 are connected to the mounting rod. The limiting rod has multiple fixing rods, all of which are perpendicularly connected to the crossbar, and at least one fixing rod is connected to the mounting rod. The forks 2 are symmetrically arranged at both ends of the mounting rod, and a mounting hole is provided at one end of the fork 2. A contact limiting section is left between the mounting hole and the root of the fork 2, and the contact limiting section works in conjunction with the fork limiting structure 3.

[0021] The mounting rod and the limiting rod are used to connect and fix the bottom of the vertical rod.

[0022] The forks 2 are connected to the mounting rod through mounting holes.

[0023] The cross-section of the limiting rod is triangular or rectangular, etc.

[0024] The fork limiting structure 3 is a horizontal limiting structure.

[0025] The fork fulcrum and resistance point of the fork limiting structure 3 are arranged horizontally.

[0026] There are three fixing rods, and the second fixing rod is connected to the mounting rod.

[0027] The contact limiting segment makes contact with the limiting rod for limiting.

[0028] Furthermore, multiple fixed rods form a cargo limiting structure.

[0029] Preferably, the fork 2 is contacted and limited by the contact limiting section with the fork limiting structure 3, ensuring that the fork 2 and the fork carriage 1 can form an angle under the weight of the forks.

[0030] Those skilled in the art will understand that the above embodiments can be modified in form and detail in practical applications without departing from the spirit and scope of the invention.

Claims

1. A telescopic fork for a fork lift truck, characterised in that: The utility model provides a fork frame, the fork frame (1) is connected with the fork (2) through the fork limiting structure (3), and the fork (2) is single straight pole structure, the fork frame (1) includes cross bar, and the both ends of cross bar are connected with vertical pole respectively, the fork limiting structure (3) includes installation rod and limiting rod, and installation rod and limiting rod are connected with vertical pole, installation rod sets up in the front side of limiting rod, and the fork (2) is connected with installation rod, limiting rod is provided with a plurality of fixed rods, a plurality of fixed rods are connected with cross bar perpendicularly, and at least one fixed rod is connected with installation rod, the fork (2) is symmetrically set up in the both ends of installation rod, and is equipped with mounting hole in one end of fork (2), the mounting hole is left with a contact limiting section from the root of fork (2), and the contact limiting section works in cooperation with fork limiting structure (3).

2. The telescoping fork of claim 1, wherein: The installation rod and the limiting rod are used for connecting and fixing the bottom of the vertical pole.

3. The telescoping fork of claim 1, wherein: The fork (2) is connected with the installation rod through the mounting hole.

4. The telescoping fork of claim 1 wherein: The cross section of the limiting rod is triangular or rectangular.

5. The telescoping fork of claim 1 wherein: The fork limiting structure (3) is a horizontal limiting structure.

6. The telescoping fork of claim 1, wherein: The fork fulcrum and the resistance point of the fork limiting structure (3) are horizontally arranged.

7. The telescoping fork of claim 1, wherein: The fixed rods are three, and the second fixed rod is connected with the installation rod.

8. The telescoping fork of claim 1, wherein: The contact limiting section is in contact with the limiting rod.

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