A pallet fork for excavators which is easy to disassemble

Abstract

This utility model discloses an easily disassembled pallet fork for excavators, belonging to the field of material handling equipment. It includes an excavator, with pallet forks symmetrically mounted on the front end of the excavator's boom via a mounting structure. The mounting structure includes a connecting plate, with triangular plates symmetrically arranged vertically at the center of the front end of the connecting plate. A crossbeam is positioned at the front end of the triangular plates. External mounting plates are symmetrically arranged at both ends of the crossbeam. A top mounting plate is positioned on the upper surface of the crossbeam near the external mounting plate. A support block is positioned in front of the top mounting plate, and an anti-rotation mechanism is positioned on the side of the support block away from the external mounting plate. The pallet fork overlaps the support block, and the pallet fork and the external mounting plate are connected together by a bolt. The end of the bolt has a through hole that mates with the anti-rotation mechanism. This utility model, through the cooperation of the top mounting plate and the support block, facilitates quick positioning of the pallet fork during installation, improving installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of material handling equipment, and in particular to a pallet fork for excavators that is easy to disassemble. Background Technology

[0002] A pallet fork for excavators is an accessory mounted on excavators for moving palletized goods and other heavy objects. It primarily uses the excavator's hydraulic system to control the raising and lowering of the boom and arm, which in turn moves the pallet fork up and down, thus achieving the lifting and transport of goods and significantly improving the excavator's versatility and operational efficiency. However, existing pallet forks suffer from problems during installation, such as difficulty in quickly aligning the connecting surfaces. For example, with bolt connections, the bolt holes need to be "blindly aligned," requiring the operator to repeatedly pry the pallet fork to adjust its position; with pin connections, the lack of a guide bevel for pin insertion can easily lead to "jamming." Furthermore, the connecting bolts of the pallet fork can loosen during use, resulting in unstable connections. Therefore, this invention proposes a pallet fork for excavators that is easy to disassemble. Utility Model Content

[0003] The purpose of this invention is to provide an excavator pallet fork that is easy to disassemble, thereby solving the problems mentioned above.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses an easily detachable pallet fork for an excavator, comprising an excavator, wherein pallet forks are symmetrically arranged at the front end of the excavator boom via an installation structure;

[0006] The mounting structure includes a connecting plate, with triangular plates symmetrically arranged vertically at the center of the front end of the connecting plate, and a crossbeam at the front end of each triangular plate. Hydraulic cylinders are hinged between the triangular plates, with the telescopic ends of the hydraulic cylinders hinged to the back of the crossbeam. The hydraulic cylinders are distributed at an angle. External mounting plates are symmetrically arranged at the left and right ends of the crossbeam. Top mounting plates are respectively arranged on the upper surface of the crossbeam near the external mounting plates. A support block is arranged in front of the top mounting plate, and a guide groove is provided on the side of the support block away from the external mounting plates. An anti-rotation mechanism is slidably arranged within the guide groove. A pallet fork is attached to the support block, and the pallet fork and the external mounting plate are connected together by a bolt. The bolt passes through the pallet fork and is threaded with a nut. The end of the bolt has a through hole that mates with the anti-rotation mechanism. The pallet fork and the top mounting plate are connected together by a bolt, and the support block has an internal threaded hole that mates with the bolt.

[0007] Furthermore, the triangular plate and the hydraulic cylinder are hinged together via a hinge shaft.

[0008] Furthermore, the back of the crossbeam is provided with symmetrically distributed ear plates, and the ear plates and the telescopic end of the hydraulic cylinder are hinged together by hinge bolts.

[0009] Furthermore, the support block has an inverted L-shaped structure.

[0010] Furthermore, the anti-rotation mechanism includes an anti-rotation body, in which a sliding rod is slidably disposed. The top of the sliding rod extends through the anti-rotation body and is provided with a hand grip. The bottom of the sliding rod extends through the anti-rotation body and is provided with symmetrical limit blocks. A downwardly extending insert is integrally formed at the center of the bottom end of the sliding rod. A spring placement groove is provided at the bottom of the anti-rotation body, and a spring is sleeved on the sliding rod between the spring placement groove and the limit block.

[0011] Furthermore, the pallet fork includes a fork body, the mounting end of the fork body is integrally formed with an inverted L-shaped plate, the top of the inverted L-shaped plate extends downward with an integrally formed limiting plate, the limiting plate has a plurality of holes that cooperate with the second bolt; the two sides of the inverted L-shaped plate are symmetrically provided with side plates, the side plates have connection holes that cooperate with the first bolt.

[0012] Furthermore, there is a gap between the top mounting plate and the support block that matches the limiting plate.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] This utility model features an easily disassembled excavator pallet fork. The top mounting plate and support block on the mounting structure work together to facilitate quick positioning during installation, improving installation efficiency. The anti-rotation mechanism design prevents the bolts from loosening during use, thus ensuring the stability of the pallet fork during operation. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a front view of the easily disassembled excavator pallet fork of this utility model in its installed state;

[0017] Figure 2 This is a schematic diagram of the installation structure;

[0018] Figure 3 Side view of the installation structure;

[0019] Figure 4 This is a schematic diagram of the anti-rotation mechanism.

[0020] Figure 5 This is a sectional view of the anti-rotation mechanism;

[0021] Figure 6 This is a schematic diagram of the pallet fork structure;

[0022] Explanation of reference numerals in the attached drawings: 1. Excavator; 2. Boom; 3. Connecting plate; 4. Triangular plate; 5. Hydraulic cylinder; 6. Hinge shaft; 7. Hinge bolt; 8. Ear plate; 9. Crossbeam; 10. Outer mounting plate; 11. Top mounting plate; 12. Support block; 13. Bolt 1; 14. Through hole; 15. Guide groove; 16. Anti-rotation mechanism; 17. Pallet fork;

[0023] 1601 Anti-rotation body; 1602 Hand grip; 1603 Slide bar; 1604 Limiting block; 1605 Spring; 1606 Insert rod; 1607 Spring placement slot;

[0024] 1701. Fork body; 1702. Inverted L-shaped plate; 1703. Limiting plate; 1704. Two bolts; 1705. Side plate; 1706. Connecting hole. Detailed Implementation

[0025] like Figure 1-6 As shown, an easily detachable excavator pallet fork includes an excavator 1, wherein pallet forks 17 are symmetrically mounted on the front end of the boom 2 of the excavator 1 via an installation structure.

[0026] The mounting structure includes a connecting plate 3. Triangular plates 4 are symmetrically mounted vertically at the center of the front end of the connecting plate 3. A crossbeam 9 is mounted at the front end of each triangular plate 4. Hydraulic cylinders 5 are hinged between the triangular plates 4 (located at the center), and the triangular plates 4 and hydraulic cylinders 5 are hinged together via a hinge shaft 6. The telescopic end of the hydraulic cylinder 5 is hinged to the back of the crossbeam 9, and the hydraulic cylinders 5 are inclined (horizontally). Symmetrically distributed ear plates 8 are mounted vertically on the back of the crossbeam 9, and the ear plates 8 are hinged to the telescopic end of the hydraulic cylinders 5 via hinge bolts 7. By activating the hydraulic cylinder 5, the telescopic process causes one end of the crossbeam 9 to rotate around the hinge shaft 6, thereby achieving angle adjustment of the pallet fork 17 during use, significantly improving the multi-functionality and operating efficiency of the excavator pallet fork.

[0027] External mounting plates 10 are symmetrically installed at both ends of the crossbeam 9. Top mounting plates 11 are installed on the upper surface of the crossbeam 9 near the external mounting plates 10. Each top mounting plate 11 has several mounting holes, allowing for precise installation by selecting the appropriate hole for different mounting positions, thus improving the fine-tuning of the installation position. A support block 12 is installed in front of the top mounting plate 11. The support block 12 has an inverted L-shaped structure and supports the connecting surface of the pallet fork 17. A pad can be installed on the support block 12 for shock absorption. A guide groove 15 is welded to the side of the support block 12 away from the external mounting plates 10. An anti-rotation mechanism 16 is slidably installed within the guide groove 15. The anti-rotation mechanism 16 slides within the guide groove 15, adjusting its position to meet the anti-rotation position adjustment requirements.

[0028] A pallet fork 17 is attached to the support block 12. The pallet fork 17 and the outer mounting plate 10 are connected together by a bolt 13. The bolt 13 passes through the pallet fork 17 and is threaded with a nut. The end of the bolt 13 has a through hole 14 that mates with the anti-rotation mechanism 16. The through hole 14 is located behind the nut. The anti-rotation mechanism 16 is inserted into the through hole 14 to prevent the bolt 13 from rotating and loosening. The pallet fork 17 and the top mounting plate 11 are connected together by a bolt 1704. The support block 12 has an internal threaded hole that mates with the bolt 1704.

[0029] The anti-rotation mechanism 16 includes an anti-rotation body 1601. A slide rod 1603 is slidably installed inside the anti-rotation body 1601. A hand grip 1602 is installed after the top of the slide rod 1603 protrudes from the anti-rotation body 1601. A limit block 1604 is symmetrically installed after the bottom of the slide rod 1603 protrudes from the anti-rotation body 1601. A downwardly extending insert rod 1606 is integrally formed at the center of the bottom end of the slide rod 1603. A spring placement groove 1607 is provided at the bottom of the anti-rotation body 1601. A spring 1605 is sleeved on the slide rod 1603 between the spring placement groove 1607 and the limit block 1604. Specifically, by holding the grip part 1602 and lifting it upwards, the insertion rod 1606 extends above the bolt 13. When the bolt 13 is tightened, its through hole 14 faces upwards. At this time, the grip part 1602 is released, and under the elastic action of the spring 1605, the insertion rod 1606 is inserted into the through hole 14 to prevent the bolt 13 from rotating.

[0030] The pallet fork 17 includes a fork body 1701. An inverted L-shaped plate 1702 is integrally formed at the mounting end of the fork body 1701 (matching the shape of the support block 12 for quick positioning and guidance, facilitating installation). An integrally formed limiting plate 1703 extends downward from the top of the inverted L-shaped plate 1702. The limiting plate 1703 has several holes that mate with the second bolt 1704. A gap matching the limiting plate 1703 exists between the top mounting plate 11 and the support block 12, enabling quick positioning and installation, and serving as a positioning guide. Side plates 1705 are symmetrically mounted on both sides of the inverted L-shaped plate 1702. The side plates 1705 have connecting holes 1706 that mate with the first bolt 13.

[0031] The installation and disassembly process of this utility model is as follows:

[0032] Installation process: Overlap the inverted L-shaped plate 1702 on the pallet fork 17 onto the support block 12, and insert the limiting plate 1703 into the gap between the top mounting plate 11 and the support block 12; then, connect the limiting plate 1703, the top mounting plate 11, and the support block 12 together with bolt 1704; finally, lift the handle 1602 upwards so that the insertion rod 1606 is higher than bolt 13. Bolt 13 passes through the connecting holes 1706 on the outer mounting plate 10 and the pallet fork 17 in sequence and then connects the nut. At this time, release the handle 1602. Under the elastic action of the spring 1605, the insertion rod 1606 is inserted into the through hole 14, completing the installation.

[0033] Disassembly process: Lift the handle 1602 upwards so that the insert rod 1606 is higher than the bolt 13. Rotate the bolt 13 to disconnect the external mounting plate 10 and pallet fork 17. Then, rotate the bolt 2 1704 to disconnect the limit plate 1703, the external mounting plate 11 and the support block 12, and complete the disassembly operation.

[0034] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A pallet fork for excavators that is easy to disassemble, characterized in that: The excavator (1) is provided with a pallet fork (17) symmetrically arranged at the front end of the boom (2) of the excavator (1) through an installation structure. The mounting structure includes a connecting plate (3), with triangular plates (4) symmetrically arranged vertically at the center of the front end of the connecting plate (3), and a crossbeam (9) at the front end of the triangular plates (4); hydraulic cylinders (5) are hinged between the triangular plates (4), and the telescopic ends of the hydraulic cylinders (5) are hinged to the back of the crossbeam (9), with the hydraulic cylinders (5) distributed at an angle; external mounting plates (10) are symmetrically arranged at the left and right ends of the crossbeam (9), and top mounting plates (11) are respectively arranged on the side of the upper end face of the crossbeam (9) close to the external mounting plates (10), with a support block (12) arranged in front of the top mounting plate (11), and the support block (12) is away from the external mounting plate. A guide groove (15) is provided on one side of the plate (10), and an anti-rotation mechanism (16) is slidably provided in the guide groove (15); a pallet fork (17) is attached to the support block (12), and the pallet fork (17) and the outer mounting plate (10) are connected together by a bolt (13), and the bolt (13) passes through the pallet fork (17) and is threaded with a nut. The end of the bolt (13) is provided with a through hole (14) that cooperates with the anti-rotation mechanism (16); the pallet fork (17) and the top mounting plate (11) are connected together by a bolt (1704), and the support block (12) is provided with an internal thread hole that cooperates with the bolt (1704).

2. The easily detachable excavator pallet fork according to claim 1, characterized in that: The triangular plate (4) and the hydraulic cylinder (5) are hinged together by a hinge shaft (6).

3. The easily detachable excavator pallet fork according to claim 1, characterized in that: The back of the crossbeam (9) is provided with ear plates (8) symmetrically distributed on the upper and lower sides. The ear plates (8) and the telescopic ends of the hydraulic cylinder (5) are hinged together by hinge bolts (7).

4. The easily detachable excavator pallet fork according to claim 1, characterized in that: The support block (12) has an inverted L-shaped structure.

5. The easily detachable excavator pallet fork according to claim 1, characterized in that: The anti-rotation mechanism (16) includes an anti-rotation body (1601), a slide rod (1603) is slidably provided inside the anti-rotation body (1601), a hand grip (1602) is provided after the top of the slide rod (1603) protrudes from the anti-rotation body (1601), and a limit block (1604) is symmetrically provided after the bottom of the slide rod (1603) protrudes from the anti-rotation body (1601). A downwardly extending insert rod (1606) is integrally formed at the center of the bottom end of the slide rod (1603); a spring placement groove (1607) is opened at the bottom of the anti-rotation body (1601), and a spring (1605) is sleeved on the slide rod (1603) between the spring placement groove (1607) and the limit block (1604).

6. The easily detachable excavator pallet fork according to claim 1, characterized in that: The pallet fork (17) includes a fork body (1701), the mounting end of the fork body (1701) is integrally formed with an inverted L-shaped plate (1702), the top of the inverted L-shaped plate (1702) extends downward with an integrally formed limiting plate (1703), the limiting plate (1703) is provided with a plurality of holes that cooperate with the second bolt (1704); the two sides of the inverted L-shaped plate (1702) are symmetrically provided with side plates (1705), the side plates (1705) are provided with connecting holes (1706) that cooperate with the first bolt (13).

7. The easily detachable excavator pallet fork according to claim 6, characterized in that: There is a gap between the top mounting plate (11) and the support block (12) that matches the limiting plate (1703).

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