A telescopic fork

Abstract

The present application belongs to the technical field of pallet forks, and particularly relates to a telescopic pallet fork, which comprises a connecting side plate, the connecting side plate being detachably connected to the front end of a forklift, a lifting mechanism being installed on the side surface of the connecting side plate, a rotating mechanism being installed on the side surface of the lifting mechanism, a work plate being installed on the side surface of the rotating mechanism, two oppositely arranged air cylinders one being installed above the work plate, a main fork arm being detachably connected to the piston rod end of the air cylinder one, a sliding groove one being formed on the side surface of the main fork arm, an air cylinder two being installed in the sliding groove one, a sub fork arm being detachably connected to the piston rod end of the air cylinder two, and the sub fork arm being slidably connected to the sliding groove one. Compared with the prior art, the present application is provided with two oppositely arranged air cylinders one above the work plate, the interval between the two main fork arms is adjusted by the two air cylinders one, the pallet fork can be adapted to both narrow and small goods and wide and large goods, the carrying requirement of goods of various widths can be met without replacing the fork arm, and the stability of the goods during carrying can be improved.

Description

Technical Field

[0001] This invention belongs to the field of forklift technology, specifically relating to a telescopic forklift. Background Technology

[0002] Currently, in the modern logistics and warehousing field, forks are the core component of material handling, and their performance directly affects operational efficiency and space utilization. However, the distance between the two forks of traditional fixed forks is a factory preset value and cannot be adjusted according to the width of the goods. This means that when dealing with small goods that are narrower than the fork distance, the goods are prone to instability and may slide to one side during handling. When dealing with large goods that are wider than the fork distance, it is necessary to replace the forks with the corresponding distance, which not only increases the equipment purchase cost but also requires downtime for replacement, seriously affecting operational efficiency.

[0003] Furthermore, the length of existing fork arms is mostly fixed. When handling goods that are longer than the fork arms, the fork arms can only be supported by the front part of the fork arms, leaving the rear of the goods suspended in the air. This can easily cause the fork arms to tilt or fall due to a shift in the center of gravity. If a short fork arm is forcibly used to handle long goods, the fork arms may bend and deform due to uneven force, thus shortening the life of the equipment. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a telescopic fork.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a telescopic fork, including a connecting side plate, the connecting side plate being detachably connected to the front end of a forklift, a lifting mechanism being installed on the side of the connecting side plate, a rotating mechanism being installed on the side of the lifting mechanism, a working plate being installed on the side of the rotating mechanism, and two opposing cylinders being installed above the working plate, the piston rod end of the cylinder being detachably connected to a main fork arm, a sliding groove being provided on the side of the main fork arm, a cylinder being installed in the sliding groove, and a secondary fork arm being detachably connected to the piston rod end of the cylinder being slidably connected to the sliding groove.

[0006] Preferably, the lifting mechanism includes two lifting components, both of which are mounted on the side of the connecting side plate. The rotating mechanism includes two rotating components, namely, a first rotating component and a second rotating component. The first rotating components are respectively mounted on the side of the two lifting components away from the connecting side plate. The second rotating component is mounted on the side of the first rotating component. The working plate is mounted on the side of the second rotating component. A drive mechanism is mounted on the side of one of the first rotating components.

[0007] Preferably, both lifting components include a guide rail and a servo motor. The guide rail is mounted on the side of the connecting side plate, and the servo motor is mounted above the guide rail. The output end of the servo motor is detachably connected to a ball screw, and a slider is fitted on the ball screw. The slider is slidably connected to the guide rail. The rotating component is mounted on the side of the slider.

[0008] Preferably, each of the two rotating components includes two connecting plates and a rotating shaft. The two connecting plates are mounted on the side of the slider. The rotating shaft passes through the two connecting plates and a rotating block is mounted on the outer periphery of the rotating shaft. The rotating component includes a second rotating shaft and a second rotating block. The two ends of the second rotating shaft are detachably connected to the ends of the first rotating shafts of the two rotating components. The second rotating block is mounted on the outer periphery of the second rotating shaft. Both sides of the second rotating block are detachably connected to the corresponding first rotating block via connecting plates. The working plate is mounted on the side of the second rotating block.

[0009] Preferably, two opposing fixing components are installed above the working plate. Each fixing component includes a drive motor and a connecting plate. The drive motor and the connecting plate are both installed above the working plate. The output end of the drive motor is detachably connected to a rotating shaft. A groove is provided on the side of the connecting plate near the drive motor, and a bearing is installed in the groove. The end of the rotating shaft is installed in the bearing. A rotating gear is installed on the outer periphery of the rotating shaft, and the rotating gear meshes with a rack. A sliding groove is provided on the working plate at the position corresponding to the rack, and the rack is slidably connected to the sliding groove. An adsorption component is installed on the end of the rack near the main fork arm, and the adsorption component cooperates with the main fork arm.

[0010] Preferably, a plurality of grooves 2 are provided above the secondary fork arm, and a cylinder 3 is installed in the plurality of grooves 2. The piston rod end of the cylinder 3 is detachably connected to a flat plate, and the upper part of the flat plate is a horizontal plane.

[0011] Preferably, the driving mechanism includes a third driving motor and a second bracket. The second bracket is mounted on the side of the slider of one of the lifting components, and the third driving motor is mounted below the second bracket. The output end of the third driving motor is detachably connected to the end of the first rotating shaft.

[0012] Preferably, each of the two lifting components has a groove three on its side, a bearing two installed in the groove three, a rotating shaft four installed in the bearing two, an arc-shaped connecting rod one rotatably connected to the outer periphery of the rotating shaft four, a support block one hinged to the end of the arc-shaped connecting rod one, an arc-shaped fixing component one installed below the support block one, and the arc-shaped fixing component one cooperating with the rotating shaft one; each of the two lifting components has a drive motor two installed on its side via a bracket one, the output end of the drive motor two is detachably connected to a rotating shaft five, a drive gear one installed on the outer periphery of the rotating shaft five, the drive gear one meshing with an arc-shaped gear one, and a straight connecting rod one installed between the arc-shaped gear one and the arc-shaped connecting rod one.

[0013] Preferably, an arc-shaped connecting rod 2 is rotatably connected to the outer periphery of the rotating shaft 4, and a support block 2 is hinged to the end of the arc-shaped connecting rod 2. An arc-shaped fixing member 2 is installed above the support block 2, and the arc-shaped fixing member 2 cooperates with the rotating shaft 1. A drive gear 2 is installed on the outer periphery of the rotating shaft 5, and the drive gear 2 meshes with the arc-shaped gear 2. A straight connecting rod 2 is installed between the end of the arc-shaped gear 2 and the arc-shaped connecting rod 2, and the teeth of the arc-shaped gear 2 are arranged opposite to the teeth of the arc-shaped gear 1.

[0014] Preferably, the lifting mechanism is externally connected to the forklift's control system, and the rotating mechanism, cylinder one, and cylinder two are all communicatively connected to the forklift's control system.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are as follows: (1) The distance between the two forks of the existing forks cannot be adjusted according to the goods. However, the present invention installs two opposing cylinders on the upper part of the work plate. The distance between the two main forks is adjusted by the two cylinders. This can adapt to narrow and small goods as well as wide and large goods. It can meet the handling needs of goods of various widths without replacing the forks, and can also improve the stability of the goods during the handling process. (2) The length of the fork arm of the existing fork is fixed, while the present invention has a sliding groove 1 on the side of the main fork arm, and a cylinder 2 is installed in the sliding groove 1. The cylinder 2 pushes the secondary fork arm to slide along the sliding groove 1, so as to realize the flexible extension and retraction of the total length of the fork arm. That is, when the length of the goods exceeds the main fork arm, the secondary fork arm can extend to extend the support length and avoid the long goods from tilting due to insufficient support. When the long fork arm is not needed, the secondary fork arm can be retracted to reduce the space occupied by the fork and adapt to the narrow working environment. (3) The groove 2 above the secondary fork arm is equipped with a cylinder 3 perpendicular to the secondary fork arm, which can raise and lower the flat plate to ensure that the upper surface of all the flat plates is at the same level as the upper surface of the main fork arm, thereby avoiding the height difference at the connection of the main and secondary fork arms, forming uniform support for easily tilted goods, and preventing the goods from slipping due to uneven force during handling. (4) The first and second arc-shaped fixing parts are provided on both sides of the rotating shaft. By driving the second motor to rotate, the first and second arc-shaped fixing parts move towards the first rotating shaft and clamp together synchronously, so that the first rotating shaft is completely locked without angular displacement, thus avoiding changes in the angle of the fork arm due to vibration during transportation. (5) The fixed components on the working plate drive the rotating gear to mesh with the rack through the drive motor, so that the adsorption component moves towards the main fork arm. When the adsorption component contacts the main fork arm, the main fork arm is fixed in the current adjustment position by the negative pressure adsorption force, thereby solving the problem of easy loosening of the traditional fork arm. Especially when picking up heavy goods or transporting on bumpy roads, it can avoid the main fork arm from shifting and causing the goods to be unbalanced. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below: Figure 1 A schematic diagram of the telescopic fork provided in Example 1; Figure 2 for Figure 1 Enlarged view of point A; Figure 3 for Figure 1 Enlarged view of point B; Figure 4 This is a structural diagram of the telescopic fork; Figure 5 for Figure 4 Enlarged view of point C.

[0017] Explanation of reference numerals in the attached figures: 1. Connecting side plate; 2. Guide rail; 3. Servo motor 1; 4. Connecting plate 1; 5. Rotating shaft 1; 6. Rotating block 1; 7. Rotating block 2; 8. Connecting plate 2; 9. Working plate; 10. Cylinder 1; 11. Main fork arm; 12. Secondary fork arm; 13. Flat plate; 14. Drive motor 1; 15. Connecting plate 3; 16. Rotating shaft 3; 17. Rotating gear 1; 18. Rack; 19. Arc-shaped fixing part 1; 20. Arc-shaped fixing part 2; 21. Support block 1; 22. Support block 2; 23. Rotating shaft 4; 24. Arc-shaped connecting rod 1; 25. Straight connecting rod 1; 26. Arc-shaped gear 1; 27. Straight connecting rod 2; 28. Bracket 1; 29. ​​Drive motor 2; 30. Rotating shaft 5; 31. Drive gear 1; 32. Drive gear 2; 33. Arc-shaped gear 2. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1 The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 To further describe the invention, a telescopic fork, such as Figure 1 As shown, it includes a connecting side plate 1, which is detachably connected to the front end of the forklift. A lifting mechanism is installed on the side of the connecting side plate 1, a rotating mechanism is installed on the side of the lifting mechanism, and a work plate 9 is installed on the side of the rotating mechanism. Two opposing cylinders 10 are installed on the top of the work plate 9. The piston rod end of the cylinder 10 is detachably connected to a main fork arm 11. A sliding groove is opened on the side of the main fork arm 11, and a cylinder 2 is installed in the sliding groove. The piston rod end of the cylinder 2 is detachably connected to a secondary fork arm 12, which is slidably connected to the sliding groove.

[0021] like Figure 1 As shown, the lifting mechanism includes two lifting components, both of which are installed on the side of the connecting side plate 1. The rotating mechanism includes two rotating components, namely rotating component one and rotating component two. The two rotating components one are respectively installed on the side of the two lifting components away from the connecting side plate 1. The rotating component two is installed on the side of the two rotating components one. The working plate 9 is installed on the side of rotating component two. A drive mechanism is installed on the side of one of the rotating components one.

[0022] like Figure 1 As shown, both lifting components include a guide rail 2 and a servo motor 3. The guide rail 2 is installed on the side of the connecting side plate 1, and the servo motor 3 is installed above the guide rail 2. The output end of the servo motor 3 is detachably connected to a ball screw, and a slider is fitted on the ball screw. The slider and the guide rail 2 are slidably connected. The rotating component is installed on the side of the slider.

[0023] like Figure 1 As shown, each of the two rotating components includes two connecting plates 4 and a rotating shaft 5. The two connecting plates 4 are installed on the side of the slider 1. The rotating shaft 5 passes through the two connecting plates 4. A rotating block 6 is installed on the outer periphery of the rotating shaft 5. The rotating component includes a rotating shaft 2 and a rotating block 2 7. The two ends of the rotating shaft 2 are detachably connected to the ends of the rotating shaft 5 of the two rotating components 1, respectively. The rotating block 2 7 is installed on the outer periphery of the rotating shaft 2. Both sides of the rotating block 2 7 are detachably connected to the corresponding rotating block 6 through connecting plates 2 8. The working plate 9 is installed on the side of the rotating block 2 7.

[0024] like Figure 1 and Figure 2As shown, two fixed components are installed opposite each other on the upper part of the working plate 9. Both fixed components include a drive motor 14 and a connecting plate 15. The drive motor 14 and the connecting plate 15 are both installed on the upper part of the working plate 9. The output end of the drive motor 14 is detachably connected to a rotating shaft 16. A groove 1 is opened on the side of the connecting plate 15 near the drive motor 14. A bearing 1 is installed in the groove 1. The end of the rotating shaft 16 is installed in the bearing 1. A rotating gear 17 is installed on the outer periphery of the rotating shaft 16. The rotating gear 17 meshes with a rack 18. A sliding groove 2 is opened at the position corresponding to the rack 18 on the working plate 9. The rack 18 is slidably connected to the sliding groove 2. An adsorption component is installed on the end of the rack 18 near the main fork arm 11. The adsorption component cooperates with the main fork arm 11.

[0025] like Figure 1 As shown, multiple grooves are provided above the secondary fork arm 12, and cylinders are installed in the multiple grooves. The piston rod end of the cylinder is detachably connected to a flat plate 13, and the upper part of the flat plate 13 is a horizontal surface.

[0026] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the drive mechanism includes a drive motor three and a bracket two. The bracket two is installed on the side of the slider one of the lifting components. The drive motor three is installed below the bracket two. The output end of the drive motor three is detachably connected to the end of the rotating shaft one 5.

[0027] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, each of the two lifting components has a groove 3 on its side, a bearing 2 installed in the groove 3, a rotating shaft 4 23 installed in the bearing 2, an arc-shaped connecting rod 1 24 rotatably connected to the outer periphery of the rotating shaft 4 23, a support block 1 21 hinged to the end of the arc-shaped connecting rod 1 24, an arc-shaped fixing part 19 installed below the support block 1 21, and the arc-shaped fixing part 19 cooperates with the rotating shaft 1 5; each of the two lifting components has a drive motor 29 installed on its side via a bracket 1 28, a rotating shaft 5 30 detachably connected to the output end of the drive motor 2 29, a drive gear 1 31 installed on the outer periphery of the rotating shaft 5 30, the drive gear 1 31 meshing with an arc-shaped gear 26, and a straight connecting rod 25 installed between the arc-shaped gear 1 26 and the arc-shaped connecting rod 1 24.

[0028] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, an arc-shaped connecting rod 2 is rotatably connected to the outer periphery of the rotating shaft 4 23. A support block 22 is hinged to the end of the arc-shaped connecting rod 2. An arc-shaped fixing part 20 is installed above the support block 22. The arc-shaped fixing part 20 cooperates with the rotating shaft 1 5. A drive gear 2 32 is installed on the outer periphery of the rotating shaft 5 30. The drive gear 2 32 meshes with an arc-shaped gear 2 33. A straight connecting rod 27 is installed between the end of the arc-shaped gear 2 33 and the arc-shaped connecting rod 2. The teeth of the arc-shaped gear 2 33 and the teeth of the arc-shaped gear 1 26 are arranged opposite to each other.

[0029] In this invention, cylinder three is perpendicular to the auxiliary fork arm 12.

[0030] In this invention, the arc-shaped fastener 19 and the arc-shaped fastener 20 are symmetrical with respect to the horizontal radial line of the rotation axis 5.

[0031] In this invention, the first arc-shaped link 24 and the second arc-shaped link are symmetrical along the axis of the fifth rotation axis 30 when viewed from above, but the first arc-shaped link 24 and the second arc-shaped link are not on the same horizontal line.

[0032] In this invention, the height of the lower side of the arc-shaped connecting rod 24 along the axis of rotation 5 is higher than or equal to the height of the arc-shaped connecting rod 2 along the axis of rotation 5.

[0033] In this invention, the hinge position of the arc-shaped connecting rod 24 and the support block 21 and the hinge position of the arc-shaped connecting rod 2 and the support block 22 are located at different heights along the axis of rotation 5.

[0034] In this invention, the teeth on the arc gear 26 are located on the arc side away from the rotation axis 30, and the teeth on the arc gear 33 are located on the arc side close to the rotation axis 30.

[0035] In this invention, the adsorption element is a conventional vacuum adsorption mechanism.

[0036] In this invention, the lifting mechanism is externally connected to the control system of the forklift, and the rotating mechanism, cylinder 10 and cylinder 2 are all communicatively connected to the control system of the forklift.

[0037] In this invention, two cylinders 10 can be synchronously controlled by the forklift control system, two servo motors 3 of the lifting components can be synchronously controlled by the forklift control system, two drive motors 14 of the fixing components can be synchronously controlled by the forklift control system, multiple cylinders 3 in the grooves 2 can be synchronously controlled by the forklift control system, and two corresponding cylinders 2 can be synchronously controlled by the forklift control system.

[0038] In this invention, cylinder 10, cylinder 2, servo motor 3, drive motor 14, adsorption component, cylinder 3, and drive motor 3 are all communicatively connected to the control system of the forklift.

[0039] The working principle of this invention is as follows: The side plate 1 is detachably connected to the front end of the forklift, forming an integral load-bearing base to ensure stable linkage between the forks and the forklift. When goods need to be transported, servo motor 3 is activated. The output of servo motor 3 drives ball screw 1 to rotate, causing slider 1 to move along guide rail 2 to a suitable height. Servo motor 3 is then deactivated, and drive motor 3 is activated. The output of drive motor 3 drives rotating shaft 5 to rotate, which in turn drives rotating shaft 2. Rotating shaft 5 synchronously drives rotating block 7 to rotate, causing the working plate 9 to rotate the main fork arm 11. After adjusting a certain angle... Turn off drive motor 3 and turn on drive motor 29. The output end of drive motor 29 drives the rotating shaft 5 30 to rotate, causing drive gear 1 31 on the outer periphery of rotating shaft 5 30 to mesh with arc gear 1 26. The rotation of drive gear 1 31 is transmitted to arc connecting rod 1 24 through arc gear 1 26 and straight connecting rod 1 25, causing arc connecting rod 1 24 to rotate around rotating shaft 4 23, driving support block 1 21 and arc fixing part 1 19 to move closer to rotating shaft 5. At the same time, drive gear 2 32 on the outer periphery of rotating shaft 5 30 meshes with arc gear 2 33, similarly driving arc connecting rod 2, support block 2 22 and arc fixing part 2 20 to move closer to rotating shaft 5. Finally, arc fixing part 1 19 and arc fixing part 2 20 together clamp rotating shaft 5, locking the rotation angle.

[0040] Turn off drive motor 29 and turn on cylinder 10. Cylinder 10 pushes the main fork arm 11 to move along the piston rod direction of cylinder 10, adjusting the distance between the two main fork arms 11 to match the width of the goods. Turn off cylinder 10 and turn on drive motor 14. Rotary shaft 3 16 drives rotating gear 17 to rotate, and meshing rack 18 slides along slide groove 2 towards the main fork arm 11. When the suction element at the end of rack 18 contacts the main fork arm 11, the suction element is activated, generating negative pressure. The suction force fixes the main fork arm 11 in the current position, preventing displacement during handling.

[0041] With the help of the forklift, the main fork arm 11 moves to the bottom of the goods, the drive motor 29 is turned on, so that the arc-shaped fixing part 19 and the arc-shaped fixing part 20 are disengaged from the rotating shaft 5. The drive motor 29 is turned off, the rotary drive motor 3 is turned on, so that the angle of the main fork arm 11 is horizontal. The drive motor 29 is turned on, so that the arc-shaped fixing part 19 and the arc-shaped fixing part 20 clamp the rotating shaft 5 together, and then the goods are transported by the forklift.

[0042] In this invention, when the length of the goods exceeds the main fork arm 11, the secondary fork arm 12 can be pushed by the second cylinder to slide along the first slide groove, thereby extending and retracting the secondary fork arm 12, extending the total length of the fork arm, and adapting to long-sized goods.

[0043] In this invention, if the position of the secondary fork arm 12 needs to be adjusted, the adjustment position must be before the first rotation of the rotating shaft 5 when conveying the goods, and before the second rotation, the cylinder 3 also needs to be turned on. The cylinder 3 drives the flat plate 13 to rise and fall vertically, so that the upper surface of all the flat plates 13 and the upper surface of the main fork arm 11 are at the same level. The fork ensures the stability of the goods through the support of the flat plate 13.

[0044] In this invention, the above process can be adjusted according to the on-site conditions.

[0045] As a technical solution of this invention, the provided hardware configuration is merely for facilitating the implementation of specific braking control based on the hardware facilities. How to specifically implement braking control and the braking control method are not the technical problems to be solved or the objects of protection of this invention. Furthermore, the communication methods between the devices all adopt existing communication methods and are not the inventive point of this application.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A telescopic fork, comprising a connecting side plate (1), characterized in that, The connecting side plate (1) is detachably connected to the front end of the forklift. A lifting mechanism is installed on the side of the connecting side plate (1), a rotating mechanism is installed on the side of the lifting mechanism, and a working plate (9) is installed on the side of the rotating mechanism. Two opposing cylinders (10) are installed on the top of the working plate (9). The piston rod end of the cylinder (10) is detachably connected to the main fork arm (11). The side of the main fork arm (11) is provided with a sliding groove. A cylinder is installed in the sliding groove. The piston rod end of the cylinder is detachably connected to the auxiliary fork arm (12). The auxiliary fork arm (12) is slidably connected to the sliding groove. The lifting mechanism includes two lifting components, both of which are installed on the side of the connecting side plate (1). The rotating mechanism includes two rotating components one and two rotating components two. The two rotating components one are respectively installed on the side of the two lifting components away from the connecting side plate (1). The rotating component two is installed on the side of the two rotating components one. The working plate (9) is installed on the side of the rotating component two. A driving mechanism is installed on the side of one of the rotating components one. Both lifting components include a guide rail (2) and a servo motor (3). The guide rail (2) is mounted on the side of the connecting side plate (1). The servo motor (3) is mounted above the guide rail (2). The output end of the servo motor (3) is detachably connected to a ball screw. A slider is fitted on the ball screw. The slider and the guide rail (2) are slidably connected. The rotating component is mounted on the side of the slider. Both of the rotating components include two connecting plates (4) and a rotating shaft (5). The two connecting plates (4) are mounted on the side of the slider. The rotating shaft (5) passes through the two connecting plates (4). A rotating block (6) is mounted on the outer periphery of the rotating shaft (5). The rotating assembly includes a second rotating shaft and a second rotating block (7). The two ends of the second rotating shaft are detachably connected to the ends of the first rotating shaft (5) of the two rotating assemblies. The second rotating block (7) is installed on the outer periphery of the second rotating shaft. Both sides of the second rotating block (7) are detachably connected to the corresponding first rotating block (6) through a second connecting plate (8). The working plate (9) is installed on the side of the second rotating block (7). The driving mechanism includes a third driving motor and a second bracket. The second bracket is installed on the side of the slider of one of the lifting components. The third driving motor is installed below the second bracket. The output end of the third driving motor is detachably connected to the end of the first rotating shaft (5). The two lifting components each have a groove 3 on their side, a bearing 2 installed in the groove 3, a rotating shaft 4 (23) installed in the bearing 2, an arc-shaped connecting rod 1 (24) rotatably connected to the outer periphery of the rotating shaft 4 (23), a support block 1 (21) hinged to the end of the arc-shaped connecting rod 1 (24), an arc-shaped fixing part 1 (19) installed below the support block 1 (21), and the arc-shaped fixing part 1 (19) cooperates with the rotating shaft 1 (5); The two lifting components have a drive motor 2 (29) mounted on the side of the slider 1 via a bracket 1 (28). The output end of the drive motor 2 (29) is detachably connected to a rotating shaft 5 (30). A drive gear 1 (31) is mounted on the outer periphery of the rotating shaft 5 (30). The drive gear 1 (31) meshes with an arc gear 1 (26). A straight connecting rod 1 (25) is installed between the arc gear 1 (26) and the arc connecting rod 1 (24).

2. The telescopic fork according to claim 1, characterized in that, Two fixed components are installed opposite to each other on the upper part of the working plate (9). Both fixed components include a drive motor (14) and a connecting plate (15). The drive motor (14) and the connecting plate (15) are both installed on the upper part of the working plate (9). The output end of the drive motor (14) is detachably connected to a rotating shaft (16). The connecting plate (15) has a groove on its side near the drive motor (14). A bearing is installed in the groove. The end of the rotating shaft (16) is installed in the bearing. A rotating gear (17) is installed on the outer periphery of the rotating shaft (16). The rotating gear (17) meshes with a rack (18). A sliding groove (2) is provided at the corresponding position of the working plate (9) and the rack (18). The rack (18) is slidably connected to the sliding groove (2). An adsorption component is installed at the end of the rack (18) near the main fork arm (11). The adsorption component cooperates with the main fork arm (11).

3. The telescopic fork according to claim 2, characterized in that, The secondary fork arm (12) has multiple grooves 2 above it, and cylinders 3 are installed in the multiple grooves 2. The piston rod end of the cylinder 3 is detachably connected to a flat plate (13), and the flat plate (13) is horizontal above it.

4. The telescopic fork according to claim 1, characterized in that, The outer periphery of the rotating shaft four (23) is rotatably connected to the arc-shaped connecting rod two. The end of the arc-shaped connecting rod two is hinged to the support block two (22). The upper part of the support block two (22) is equipped with the arc-shaped fixing part two (20). The arc-shaped fixing part two (20) cooperates with the rotating shaft one (5). The outer periphery of the rotating shaft five (30) is equipped with the drive gear two (32). The drive gear two (32) meshes with the arc-shaped gear two (33). The end of the arc-shaped gear two (33) is connected to the arc-shaped connecting rod two with the straight connecting rod two. The teeth of the arc-shaped gear two (33) and the teeth of the arc-shaped gear one (26) are arranged opposite to each other.

5. The telescopic fork according to claim 1, characterized in that, The lifting mechanism is externally connected to the control system of the forklift, and the rotating mechanism, cylinder one (10) and cylinder two are all communicatively connected to the control system of the forklift.

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