Adjustable pallet fork

By designing an adjustable fork structure in the unmanned forklift forks and adjusting the fork spacing using the adjustment mechanism and drive mechanism, the problem that existing forks cannot adapt to different cargo sizes and shapes is solved, and the flexibility of the forklift and the stability of the cargo is improved.

CN223002694UActive Publication Date: 2025-06-20JIANGSU HONGJIU INTELLIGENT MFG TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202422125236.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-06-20
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

The existing unmanned forklift cargo forks cannot adjust the spacing of cargoes and cannot adapt to cargoes of different sizes and shapes, which limits their application in different scenarios.

Method used

An adjustable fork is designed. By setting an adjustment mechanism on the connecting plate, the driving mechanism is used to drive the double-headed screw to rotate, so that the forks are relatively close or far away, thereby adjusting the distance between the forks.

Benefits of technology

The stable clamping and drop of goods is achieved, which increases the flexibility and versatility of forklifts, and can adapt to various types of goods, reducing the risk of goods falling or damage.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223002694U_ABST
    Figure CN223002694U_ABST
Patent Text Reader

Abstract

The utility model provides an adjustable pallet fork which comprises a connecting plate, the connecting plate is connected with a pallet fork lifting system of a forklift, an adjusting mechanism is arranged on the connecting plate, the input end of the adjusting mechanism is connected with a driving mechanism, and the two output ends of the adjusting mechanism are respectively provided with a pallet fork. The adjusting mechanism drives the two pallet forks to get close to each other or get away from each other, each pallet fork comprises a horizontal part and a vertical part which are connected, the vertical part is connected with the output end of the adjusting mechanism, and a plurality of clamping tooth parts are arranged on the horizontal part. According to the utility model, the distance between the two forks can be conveniently adjusted to adapt to goods with different sizes and shapes, so that the flexibility of the forklift truck is improved, the forklift truck can process goods with various types, and the universality is improved. The distance between the forks can be adjusted according to the size of goods, the proper distance between the forks can ensure that the goods are more stable in the carrying process, and the risk that the goods fall off or are damaged is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model mainly relates to the technical field of forklift forks, and particularly relates to an adjustable fork. Background Art

[0002] An unmanned forklift, also known as an automatic guided forklift or an AGV (Automated Guided Vehicle) forklift, has been used in an automatic handling and docking system. In the automatic handling and docking system of an unmanned forklift, the unmanned forklift transports a material vehicle to a machine platform and docks the material vehicle with the machine platform.

[0003] For example, Chinese Patent Publication No. CN220334689U discloses an unmanned forklift applicable to high-level shelves, including a mechanism box. A parking mechanism is arranged outside the mechanism box, and the parking mechanism includes a fixed seat. An adjusting mechanism is arranged inside the mechanism box, and the adjusting mechanism includes a moving frame and two fork plates. Rack teeth are fixedly connected to the outer surfaces of the two fork plates, and two motors II are fixedly connected to the outer surface of the mechanism box.

[0004] The above application controls the protruding length of the fork plates, facilitating turning and U-turns in narrow areas and improving the flexibility of the forklift. However, the forks in the above application cannot adjust the distance between the two forks. Different sizes and shapes of goods require different fork distances for safe and stable handling. If the fork distance is fixed, the unmanned forklift may not be able to adapt to various goods, restricting its application in different scenarios. Summary of the Utility Model

[0005] 1. Technical problems to be solved by the utility model:

[0006] The utility model provides an adjustable fork to solve the technical problems existing in the above background art.

[0007] 2. Technical solutions:

[0008] To achieve the above object, the technical solution provided by the utility model is: an adjustable fork, including a connecting plate, the connecting plate is connected to the fork lifting system of the forklift. An adjusting mechanism is arranged on the connecting plate, the input end of the adjusting mechanism is connected to a driving mechanism, and one fork is arranged on each of the two output ends of the adjusting mechanism. The adjusting mechanism drives the two forks to approach or move away from each other relatively. The fork includes a connected horizontal part and a vertical part, the vertical part is connected to the output end of the adjusting mechanism, and a plurality of tooth engaging parts are arranged on the horizontal part.

[0009] Preferably, the adjusting mechanism includes two bearing seats fixed on the connecting plate. A double-headed screw is rotatably installed on the two bearing seats through bearings. Two threaded sleeves are installed on the double-headed screw through threads. A connecting block is arranged on the threaded sleeve, and the connecting block is fixedly connected to the vertical part.

[0010] Preferably, two guide rails are arranged on the connecting plate. The guide rails are arranged parallel to the double-headed screw. The two guide rails are respectively located on both sides of the double-headed screw. Sliders are slidably installed on the guide rails. Both ends of the connecting block are fixedly connected to the sliders.

[0011] Preferably, the driving mechanism includes a motor fixed on the connecting plate. A first synchronous pulley is fixedly installed on the motor shaft of the motor. One end of the double-headed screw extends out of the bearing seat and is fixedly connected to a second synchronous pulley. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt.

[0012] Preferably, a plurality of screw holes are formed in the horizontal part. A plurality of teeth are arranged on one end face of the tooth part. Two slotted holes are formed in the tooth part. The tooth part is fixed on the horizontal part through the slotted holes, the screw holes and connecting bolts.

[0013] 3. Beneficial effects:

[0014] Adopting the technical solution provided by the present utility model, compared with the prior art, the following beneficial effects are achieved:

[0015] Through the adjusting mechanism, the present utility model can control the relative positions of the two forklift forks, making them relatively close or relatively far away from each other, so as to clamp or release the goods. The distance between the two forklift forks can be conveniently adjusted to adapt to goods of different sizes and shapes, thereby increasing the flexibility of the forklift and enabling it to handle various types of goods, improving the versatility. The present utility model can adjust the distance between the forklift forks according to the size of the goods. A suitable distance between the forklift forks can ensure that the goods are more stable during handling, reducing the risk of the goods falling or being damaged.

[0016] The horizontal part of the present utility model is responsible for carrying the goods, and the tooth part thereon can be used to fix the goods to prevent the goods from sliding during transportation. Description of the drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the structure of the present utility model from another angle;

[0019] Figure 3 is a schematic diagram of the forklift fork structure of the present utility model;

[0020] Figure 4 This is a schematic structural diagram of the adjustment mechanism of the present utility model.

[0021] Reference numerals:

[0022] 1. Connecting plate; 2. Adjustment mechanism; 21. Bearing seat; 22. Double-headed screw; 23. Threaded sleeve; 24. Connecting block; 25. Slide block; 26. Guide rail; 3. Driving mechanism; 31. Motor; 32. First synchronous pulley; 33. Synchronous belt; 34. Second synchronous pulley; 4. Fork; 41. Horizontal part; 42. Vertical part; 43. Tooth engaging part; 44. Threaded hole; 45. Slotted hole; 46. Connecting bolt; 47. Teeth. Specific embodiments

[0023] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0026] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", "provided with", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] It should be noted that the structures not introduced in the present utility model are the same as the prior art or can be implemented using the prior art because they do not involve the design key points and improvement directions of the present utility model, and thus will not be elaborated herein. Embodiment

[0028] Refer to the appendix Figures 1 to 4 , an adjustable fork includes a connecting plate 1, the connecting plate 1 is connected to the fork lifting system of the forklift, an adjusting mechanism 2 is provided on the connecting plate 1, the input end of the adjusting mechanism 2 is connected to a driving mechanism 3, and a fork 4 is respectively provided on each of the two output ends of the adjusting mechanism 2. The adjusting mechanism 2 drives the two forks 4 to approach or move away from each other relatively. The adjusting mechanism 2 includes two bearing seats 21 fixed on the connecting plate 1, a double-headed screw 22 is rotatably installed on the two bearing seats 21 through bearings, two threaded sleeves 23 are installed on the double-headed screw 22 through threads, a connecting block 24 is provided on the threaded sleeve 23, and the connecting block 24 is fixedly connected to the vertical part 42. Two guide rails 26 are provided on the connecting plate 1, the guide rails 26 are arranged parallel to the double-headed screw 22, the two guide rails 26 are respectively located on both sides of the double-headed screw 22, and sliders 25 are slidably installed on the guide rails 26. Both ends of the connecting block 24 are fixedly connected to the sliders 25.

[0029] The driving mechanism 3 includes a motor 31 fixed on the connecting plate 1, a first synchronous pulley 32 is fixedly installed on the motor shaft of the motor 31, one end of the double-headed screw 22 extends out of the bearing seat 21 and is fixedly connected to a second synchronous pulley 34, and the first synchronous pulley 32 and the second synchronous pulley 34 are connected by a synchronous belt 33.

[0030] A plurality of screw holes 44 are provided on the horizontal part 41, a tooth 47 is provided on one end face of the tooth part 43, two slotted holes 45 are provided on the tooth part 43, and the tooth part 43 is fixed on the horizontal part 41 through the slotted holes 45, the screw holes 44 and the connecting bolts 46.

[0031] Working principle:

[0032] The motor 31 starts, and its motor shaft begins to rotate. The first synchronous pulley 32 on the motor shaft rotates accordingly. Since the first synchronous pulley 32 and the second synchronous pulley 34 are connected by a synchronous belt 33, the rotation of the first synchronous pulley 32 is transmitted to the second synchronous pulley 34 through the synchronous belt 33. The second synchronous pulley 34 drives the double-headed screw 22 to rotate. The rotation of the double-headed screw 22 causes the two threaded sleeves 23 to move relative to each other along the screw. The movement of the threaded sleeves 23 drives the forklift forks 4 to move relatively closer or farther apart through the connecting block 24. At the same time, both ends of the connecting block 24 are fixedly connected to the sliders 25, and the sliders 25 slide on the guide rails 26, playing a role in guiding and supporting to ensure the smooth movement of the forklift forks 4.

[0033] By means of the adjusting mechanism 2, the relative positions of the two forklift forks 4 can be controlled to move relatively closer or farther apart, so as to realize the clamping or putting down of goods. The distance between the two forklift forks 4 can be conveniently adjusted to adapt to goods of different sizes and shapes, thereby increasing the flexibility of the forklift, enabling it to handle various types of goods and improving the versatility. The utility model can adjust the distance between the forklift forks 4 according to the size of the goods. A suitable distance between the forklift forks can ensure that the goods are more stable during handling and reduce the risk of the goods falling or being damaged.

[0034] The horizontal part 41 is responsible for carrying the goods. The teeth 47 on the toothed part 43 can increase the friction between the forklift fork and the goods, preventing the goods from slipping during handling. Through the screw holes 44 and the connecting bolts 46, the toothed part 43 can be fixed on the horizontal part 41, and the position and quantity of the toothed part 43 can be adjusted according to needs to adapt to goods of different shapes and sizes. The design of the slotted hole 45 makes the installation and adjustment of the toothed part 43 more flexible and convenient, and the position of the toothed part 43 can be quickly replaced or adjusted.

[0035] The above-described embodiments only represent certain implementation manners of the utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent; it should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the utility model; therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. An adjustable fork, comprising a connecting plate (1), wherein the connecting plate (1) is connected to a fork lifting system of a forklift, and characterized in that: The connecting plate (1) is provided with an adjusting mechanism (2), the input end of the adjusting mechanism (2) is connected to the driving mechanism (3), and two output ends of the adjusting mechanism (2) are respectively provided with a fork (4), and the adjusting mechanism (2) drives the two forks (4) to move relatively close to or relatively far away from each other, and the fork (4) comprises a horizontal portion (41) and a vertical portion (42) connected to each other, the vertical portion (42) being connected to the output end of the adjusting mechanism (2), and a plurality of latching teeth (43) being provided on the horizontal portion (41).

2. An adjustable fork according to claim 1, characterized in that: The adjustment mechanism (2) comprises two bearing seats (21) fixed on the connecting plate (1), a double-headed screw (22) being rotatably mounted on the two bearing seats (21) via bearings, two threaded sleeves (23) being threadably mounted on the double-headed screw (22), a connecting block (24) being provided on the threaded sleeve (23), and the connecting block (24) being fixedly connected to the vertical portion (42).

3. The adjustable fork according to claim 2, characterized in that: Two guide rails (26) are arranged on the connecting plate (1), the guide rails (26) are arranged parallel to the double-headed screw (22), the two guide rails (26) are respectively located on both sides of the double-headed screw (22), a slider (25) is slidably mounted on the guide rails (26), and both ends of the connecting block (24) are fixedly connected to the slider (25).

4. The adjustable fork according to claim 3, characterized in that: The driving mechanism (3) comprises a motor (31) fixed on the connecting plate (1); a first synchronous pulley (32) is fixedly mounted on the motor shaft of the motor (31); one end of the double-headed screw (22) extends out of the bearing seat (21) and is fixedly connected to a second synchronous pulley (34); the first synchronous pulley (32) and the second synchronous pulley (34) are connected via a synchronous belt (33).

5. The adjustable fork according to claim 1, characterized in that: The horizontal portion (41) is provided with a plurality of screw holes (44), one end surface of the latching tooth portion (43) is provided with a latching tooth (47), the latching tooth portion (43) is provided with two straight grooves (45), and the latching tooth portion (43) is fixed to the horizontal portion (41) via the straight grooves (45), the screw holes (44) and the connecting bolts (46).

Citation Information

Patent Citations

  • Unmanned forklift applicable to high-position goods shelf

    CN220334689U