Industrial forklift attachment for assisting tire assembly
By designing a three-link clamping arm and flip control system, the existing forklift clamping equipment has poor adaptability and instability in clamping to tires of different diameters, and the convenience and safety of tire assembly have been improved.
Patent Information
- Application Number
- CN202411776240.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-02-28
AI Technical Summary
During the use of the existing forklift clamping equipment, the clamping arms have poor adaptability to tires of different diameters, inconvenient operation, and safety risks of clamping instability.
A three-link clamping arm including a stretching arm bracket, a stretching arm outer connecting rod, an opening and closing degree of the clamping arm and a support frame is designed. The opening and closing degree of the clamping arm is adjusted by the opening and closing of the cylinder, and the flip control cylinder drives the rotation of the flip connecting rod and the working disc to achieve the flip and angle adjustment of the tire.
It improves the convenience of clamping tires of different diameters, reduces the need for manual assistance, improves assembly efficiency, and reduces safety hazards during use.
Smart Images
Figure CN119528059A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of forklift attachments, in particular to an industrial forklift attachment for assisting tire assembly. Background Art
[0002] With the rapid development of the automobile industry, forklift clamping attachments are gradually being used to replace crane hoisting to assist in the production and assembly of large tires. Existing forklift attachments usually include a mounting bracket, which is mounted on the lifting mechanism of the forklift. The mounting bracket is connected to the support frame through a hydraulic motor. Clamping arms for clamping tires are hinged on both sides of the support frame. Move the forklift to a suitable position, operate the clamping arms of the attachment to clamp the tread of the tire, and then operate the hydraulic motor to drive the tire to do centering movement, so that the connection holes on the tire and the studs on the drive axle shaft head are aligned, and then tighten the bolts to fix it, and the tire assembly can be completed.
[0003] However, the clamping arms of existing forklift clamping attachments are generally simple fixtures of double connecting rods and oil cylinders, one end of the double connecting rod is hinged to the attachment, and the clamping arm can only rotate around the hinge of the support frame. It has low adaptability to the assembly of tires of different diameters, and the compatibility of the tire attachment is too poor. In addition, the actual process requires manual assistance to flip the tire to be installed upright, and then control the attachment to clamp the tire, resulting in reduced convenience of using the attachment and reduced efficiency of tire assembly.
[0004] When the existing forklift clamping attachment is in use, the clamping arm of the attachment may accidentally lose stability due to improper operation. A tire that is not fully upright may easily fall to the ground after losing its clamping stability, posing a safety hazard to the personal safety of the auxiliary tire assembly personnel. Summary of the invention
[0005] In view of the shortcomings of the existing forklift clamping attachments mentioned in the background technology during use, the present invention provides an industrial forklift attachment for assisting tire assembly, which has the advantages of convenient clamping, the ability to flip and clamp tires, and avoid safety hazards caused by unstable clamping, thereby solving the technical problems raised in the above background technology.
[0006] The present invention provides the following technical solution: an industrial forklift accessory for assisting tire assembly, comprising an accessory mounting frame and a tire for fixing to a lifting mechanism of a forklift, wherein a hydraulic motor for adjusting the tire centering rotation angle is fixedly connected to the front of the accessory mounting frame, a slewing support cooperating with the hydraulic motor is arranged at the front of the accessory mounting frame, a support frame is fixedly connected to the front of the slewing support, outer arm connecting rods are hinged on both sides of the support frame, and inner arm connecting rods are hinged near both sides of the support frame.
[0007] One end of the inner link and the outer link of the arm is hinged with an arm bracket, and the support frame is hinged with an arm control cylinder for providing a clamping driving force near both sides, and one end of the arm bracket is provided with a working disc for clamping a tire.
[0008] Preferably, one end of the cantilever bracket is rotatably connected to a rotating shaft, one end of the rotating shaft is fixedly sleeved with the working disc, the other end of the rotating shaft is fixedly connected to a flip connecting rod, and the cantilever bracket is fixedly connected to a flip control cylinder for driving the flip connecting rod to rotate.
[0009] Preferably, the rotating shaft is fixedly connected to a support rod at one end of the working disc, a sliding groove is opened on one side of the support rod, a sliding block is slidably connected in the sliding groove, the cross-section of the sliding groove is T-shaped and the shape of the sliding block is adapted to the sliding groove.
[0010] One side of the sliding block is fixedly connected to a clamping disc for clamping the tire, one side of the sliding block is fixedly connected to a fixed rack for positioning, a positioning mechanism adapted to the fixed rack is provided in the support rod, and the sliding block is fixedly connected to a connecting spring for resetting.
[0011] Preferably, an inclined groove adapted to the sliding direction of the sliding block is opened at the midpoint of the support rod, and the positioning mechanism includes a movable rack and a protrusion, the protrusion is fixedly connected to the cantilever bracket, and the movable rack is slidably arranged in the inclined groove and adapted to the inclined groove.
[0012] The movable rack can mesh with the fixed rack, the thickness of the movable rack gradually decreases from one end close to the protrusion to one end away from the protrusion to form an inclined surface, and the length of the movable rack is less than the length of the inclined groove.
[0013] Preferably, the working disc is provided with a second avoidance groove adapted to the protrusion near the midpoint, and the support rod is provided with a first avoidance groove adapted to the protrusion near one end.
[0014] Preferably, the outer side surface of the protrusion is configured as a smooth arc surface that is adapted to the inclined groove and has a gradually changing distance from the rotation axis, and the thickness variation of the arc surface of the protrusion is adapted to the rotation angle of the support rod relative to the protrusion.
[0015] Preferably, the support rod is tilted in a state corresponding to the fully retracted state of the flip control cylinder, and the sliding length of the sliding block in the inner cavity of the sliding groove is greater than the radius of the tire to be clamped.
[0016] The present invention has the following beneficial effects:
[0017] 1. The present invention forms a three-link clamping arm through a cantilever bracket in conjunction with a cantilever outer link, a cantilever inner link and a support frame, and uses a cantilever control cylinder to adjust the opening and closing degree of the clamping arm to clamp or loosen the tire, thereby improving the convenience of the attachment for clamping tires of different diameters, and can drive the flip link to rotate through the flip control cylinder, and then cooperate with the rotating shaft to drive the working disc to rotate, so that the lifted tire is flipped 90° from a horizontal state to a vertical state, so that the attachment can complete the clamping, lifting, flipping and angle adjustment of the tire without the assistance of personnel, further improving the convenience of tire installation.
[0018] 2. The present invention fixes a support rod on the outside of the rotating shaft when needed, clamps the tire with a clamping disc, drives the support rod to rotate through the rotating shaft, and drives the clamping disc to rotate in cooperation with the sliding block. While the clamping disc drives the tire horizontally placed on the ground to rotate, the clamping disc drives the sliding block to slide along the sliding groove due to the reaction force, and the support rod rotates synchronously until the tire is flipped to an upright position. This process is equivalent to lifting the tire height and flipping the tire separately, which saves the operating steps of tire assembly and further improves the convenience of using the accessory. Afterwards, the lifting mechanism of the forklift is operated to adjust the tire to a suitable height, avoiding excessive and unnecessary lifting of the tire. The accessory does not need to lift the entire accessory to lift the tire upright, which reduces the lifting counterweight and avoids unnecessary energy consumption during the use of the accessory.
[0019] 3. The present invention utilizes a convex block to cooperate with a movable rack and a fixed rack to position the sliding block when the flip control cylinder is fully extended, so that the attachment can adapt to tires of different diameters. When an accident occurs when the attachment is clamping a tire, the tire being flipped will be separated from the clamping disc, and the tire in a tilted state will topple over because one side of the tire contacts the ground and the other side is lifted. This avoids the potential safety hazard of a traditional tire clamping attachment clamping an unstable tire and causing it to roll because it is in a vertical state, thereby improving the safety of the attachment. In addition, the support rod is in a tilted state after the tire is flipped, and the clamping disc extends relative to the initial position, thereby improving the adaptability of the attachment to narrow tire assembly spaces. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0021] Figure 2 The schematic diagram of the partial structure of the cantilever support of the present invention is as follows Figure 1 ;
[0022] Figure 3 The schematic diagram of the partial structure of the cantilever support of the present invention is as follows Figure 2 ;
[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at the support rod;
[0024] Figure 5 For the present invention Figure 4 Schematic diagram of the structural section in ;
[0025] Figure 6 For the present invention Figure 3 A schematic diagram of the structure of the working disc;
[0026] Figure 7 For the present invention Figure 3 Schematic diagram of the structure of the part at the bump in FIG.
[0027] In the figure: 1. flip control cylinder; 2. flip connecting rod; 3. tire; 4. arm control cylinder; 5. slewing support; 6. hydraulic motor; 7. attachment mounting frame; 8. support frame; 9. arm support; 10. arm outer connecting rod; 11. fixed rack; 12. arm inner connecting rod; 13. working disc; 14. support rod; 15. clamping disc; 16. sliding groove; 17. connecting spring; 18. inclined groove; 19. movable rack; 20. sliding block; 21. No. 1 avoidance groove; 22. protrusion; 23. No. 2 avoidance groove; 24. rotating shaft. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0029] See also Figure 1 An industrial forklift attachment for assisting tire assembly includes an attachment mounting frame 7 and a tire 3 fixed to a lifting mechanism of a forklift. A hydraulic motor 6 for adjusting the centering rotation angle of the tire 3 is fixedly connected to the front of the attachment mounting frame 7. A slewing support 5 cooperating with the hydraulic motor 6 is provided at the front of the attachment mounting frame 7. A support frame 8 is fixedly connected to the front of the slewing support 5. The slewing support 5 can be set as an inner gear ring. A large bearing for supporting the inner gear ring is sleeved on the outer side of the inner gear ring. The large bearing is fixedly set on the attachment mounting frame 7. A transmission gear for driving the inner gear ring to rotate is fixedly connected to the output end of the hydraulic motor 6.
[0030] The transmission gear is located on the inner side of the inner gear ring and meshes with the inner gear ring. The inner gear ring is fixedly connected to the support frame 8. The lifting mechanism of the forklift controls the lifting of the attachment mounting frame 7. The attachment mounting frame 7 drives the support frame 8 to lift and lower through the slewing support 5, and operates the hydraulic motor 6. The hydraulic motor 6 cooperates with the transmission gear and the inner gear ring to drive the support frame 8 to rotate. Both sides of the support frame 8 are hinged with an outer arm connecting rod 10, and the support frame 8 is hinged with an inner arm connecting rod 12 near both sides. One end of the inner arm connecting rod 12 and the outer arm connecting rod 10 is hinged with an arm bracket 9, and the support frame 8 is hinged with an arm control cylinder 4 for providing a clamping driving force near both sides. The cylinder body of the arm control cylinder 4 is hinged to the support frame 8, and the output end of the arm control cylinder 4 is hinged to the arm bracket 9.
[0031] The articulation of the arm control cylinder 4 and the arm support 9, and the articulation of the inner link 12 of the arm and the arm support 9 can be coaxial. When the arm control cylinder 4 contracts, the output end of the arm control cylinder 4 drives the arm support 9 to rotate and contract, and the arm outer link 10 and the arm inner link 12 rotate around their respective intersections with the support frame 8. At the same time, the arm outer link 10 and the arm inner link 12 drive the arm support 9 to rotate, and the arm support 9 cooperates with the arm outer link 10, the arm inner link 12 and the support frame 8 to form a three-link clamping arm. The three-link clamping arm contracts to complete the clamping of the tire 3. Conversely, the arm control cylinder 4 extends to make the three-link clamping arm open and release the tire 3. The tire 3 is clamped or released by the link clamping arm, thereby improving the flexibility of the accessory in clamping the tire 3 and the adaptability to tires 3 of different diameters.
[0032] See also Figure 1-Figure 4 One end of the arm bracket 9 is rotatably connected to a rotating shaft 24, one end of the rotating shaft 24 is fixedly sleeved with a working disc 13, the other end of the rotating shaft 24 is fixedly connected to a flip connecting rod 2, the arm bracket 9 is fixedly connected to a flip control cylinder 1 for driving the flip connecting rod 2 to rotate, the cylinder body of the flip control cylinder 1 is hinged to the arm bracket 9, the output end of the flip control cylinder 1 is hinged to the flip connecting rod 2, when the flip control cylinder 1 is extended or retracted, it drives the flip connecting rod 2 to rotate around the center of the rotating shaft 24, and the flip connecting rod 2 drives the rotating shaft 24 to rotate.
[0033] The rotating shaft 24 drives the working disc 13 to rotate. The working disc 13 can be used to fit with the tread of the tire 3 when the three-link clamping arm rotates and contracts, thereby completing the clamping of the tire 3. After clamping the tire 3, the support frame 8 is controlled to rise. The support frame 8 drives the tire 3 to rise through the three-link clamping arm and the working disc 13, and controls the extension of the flip control cylinder 1. The flip control cylinder 1 cooperates with the flip connecting rod 2, the rotating shaft 24 and the working disc 13 to drive the tire 3 to flip 90°, so that the tire 3 changes from a horizontal state to a vertical state. The accessory does not require personnel assistance and can complete the clamping, lifting, flipping and angle adjustment of the tire 3, which is convenient for the installation of the tire 3.
[0034] Since the flip control cylinder 1 and the forklift lifting mechanism are controlled by two oil circuits respectively, the operator simultaneously operates the operating levers for flipping and lifting the tire 3, which may cause the tire 3 to flip 90° when the height is not higher than the radius of the tire 3 itself, and the position of the working disc 13 that fits the tire 3 is fixed by the rotating shaft 24, which may cause the working disc 13 to clamp the tire 3 unsteadily, causing safety hazards. The flipping of the tire 3 is performed after the tire 3 is lifted to a height higher than the radius of the tire 3 itself, and the operation steps are performed separately, resulting in cumbersome operation steps and reduced tire 3 assembly efficiency. At the same time, the height of the tire 3 usually needs to be lifted excessively, and the height of the tire 3 after lifting is likely to be higher than the height adapted to the drive axle shaft head, and the height of the tire 3 needs to be lowered again, resulting in ineffective use of energy and cumbersome operation procedures. Therefore, the following solutions are further provided:
[0035] See also Figure 1-Figure 5 The rotating shaft 24 is located at one end of the working disc 13 and is fixedly connected to a support rod 14. The support rod 14 can be connected to the rotating shaft 24 by bolts, so that it is easy to install or disassemble without affecting the use of the working disc 13 when needed. A sliding groove 16 is provided on one side of the support rod 14, and a sliding block 20 is slidably connected in the sliding groove 16. The cross-section of the sliding groove 16 is T-shaped and the shape of the sliding block 20 is adapted to the sliding groove 16, so that the sliding block 20 can only slide along the sliding groove 16 without leaving the sliding groove 16. A clamping disc 15 for clamping the tire 3 is fixedly connected to one side of the sliding block 20. The three-link clamping arm cooperates with the rotating shaft 24 to drive the clamping disc 15 to clamp the tire 3 placed on the ground in a horizontal state. The flip control cylinder 1 is operated to extend, and the flip control cylinder 1 cooperates with the flip connecting rod 2, the rotating shaft 24, the support rod 14, the sliding block 20 and the clamping disc 15 to drive the tire 3 to flip.
[0036] The support rod 14 rotates synchronously, and the clamping surface of the tire 3 rises as the tire 3 flips, thereby driving the clamping disc 15 connected to the sliding block 20 to slide and rise along the sliding groove 16 until the tire 3 stands upright. At this time, the support rod 14 rotates 90° synchronously, and the flipping and uprighting of the tire 3 is completed through a single operation step, which simplifies the operation process, saves operation steps, and improves assembly efficiency. In addition, the uprighting step of the tire 3 does not require lifting of the entire attachment, reduces the lifting weight, shortens the attachment lifting distance required to adjust the height of the tire 3 to correspond to the height of the drive axle shaft head, avoids excessive lifting of the tire 3, and reduces unnecessary energy consumption.
[0037] At the same time, the force required for the clamping disc 15 to cooperate with the sliding block 20 is provided by the reaction force of the clamping tire 3. When an accident occurs and the clamping disc 15 causes the tire 3 to become unstable, the tire 3 is in a tilted state. After losing the clamping force, one side of the tire 3 contacts the ground, and the lifted side will fall due to the tilt, thereby avoiding the tire 3 in the vertical state from breaking away from the clamping and rolling due to the clamping instability, thereby improving the reliability and safety of the use of the attachment. For the clamping force of the tire 3, one side of the sliding block 20 is fixedly connected with a fixed rack 11 for positioning, and an inclined groove 18 adapted to the sliding direction of the sliding block 20 is provided at the midpoint of the support rod 14, and a positioning mechanism adapted to the fixed rack 11 is provided in the support rod 14.
[0038] See also Figure 3-Figure 7 The positioning mechanism includes a movable rack 19 and a protrusion 22. The protrusion 22 is fixedly connected to the cantilever bracket 9. The protrusion 22 will not rotate with the support rod 14. The protrusion 22 is located on the outside of the rotating shaft 24. The working disc 13 is provided with a second avoidance groove 23 adapted to the protrusion 22 near the midpoint. The support rod 14 is provided with a first avoidance groove 21 adapted to the protrusion 22 near one end. During the rotation of the working disc 13 and the support rod 14, the protrusion 22 is always located in the first avoidance groove 21 and the second avoidance groove 23, the inclined groove 18 is connected with the sliding groove 16, the movable rack 19 is slidably set in the inclined groove 18 and adapted to the inclined groove 18, the movable rack 19 can engage with the fixed rack 11, and the thickness of the movable rack 19 gradually decreases from the end close to the protrusion 22 to the end away from the protrusion 22 to form an inclined surface, and the fitting surface of the inclined groove 18 and the movable rack 19 is an inclined surface adapted to the movable rack 19 and the length of the movable rack 19 is less than the length of the inclined groove 18.
[0039] The outer side surface of the projection 22 is set to be a smooth arc surface adapted to the inclined groove 18 and with a gradually changing distance from the rotating shaft 24. The thickness change of the arc surface of the projection 22 is adapted to the rotation angle of the support rod 14 relative to the projection 22, so that when the movable rack 19 is fully extended, that is, when the tire 3 is turned 90°, the movable rack 19 can be supported by the thicker part of the projection 22 and slide relative to the inclined groove 18, so that the movable rack 19 is close to the fixed rack 11 and meshes with the fixed rack 11, thereby completing the positioning and fixing of the projection 22. After the movable rack 19 is pushed by the projection 22, the distance between the movable rack 19 and the fixed rack 11 is only related to the telescopic distance of the flip control cylinder 1, and has nothing to do with the position of the sliding block 20, so that the positioning mechanism can adapt to tires 3 of different diameters, thereby improving the flexibility and adaptability of the use of the attachment.
[0040] See also Figure 1-Figure 5The sliding block 20 is fixedly connected with a connecting spring 17 for resetting, and one end of the connecting spring 17 is fixedly connected to the side wall of the sliding groove 16. After the attachment releases the clamping of the tire 3, the connecting spring 17 pushes the sliding block 20 to reset, and the support rod 14 is tilted corresponding to the state when the flip control cylinder 1 is fully retracted. After the support rod 14 rotates 90°, one end of the support rod 14 tilts to the side away from the support frame 8, and the clamping disc 15 slides through the sliding block 20 and extends in the horizontal direction relative to the initial position of the clamping disc 15. When the assembly space at the drive axle shaft head on the vehicle body is small, it is convenient for the clamping disc 15 to drive the tire 3 to extend into the assembly space, thereby increasing the convenience of using the attachment.
[0041] The method of use (working principle) of the present invention is as follows:
[0042] The attachment is installed on the lifting mechanism of the forklift through the attachment mounting frame 7. The forklift is operated to move to the position of the tire 3 to be clamped, and the arm control cylinder 4 is operated to contract, so that the arm outer connecting rod 10, the arm inner connecting rod 12 and the arm bracket 9 cooperate with the support rod 14 and the sliding block 20 to drive the clamping disc 15 to clamp the tire 3 in a horizontal state. The flip control cylinder 1 is controlled to drive the clamping disc 15 to rotate, drive the tire 3 to flip, and the support rod 14 rotates synchronously, so that the sliding block 20 drives the clamping disc 15 to rotate. At the same time, the sliding block 20 slides along the sliding groove 16, and the tire 3 flips 90° to stand upright, and the tire 3 is lifted alone, reducing the counterweight when the tire 3 is lifted, and avoiding the safety hazard of the tire 3 rolling in the event of accidental clamping instability.
[0043] The protrusion 22 cooperates with the movable rack 19 to extend the inclined groove 18 to slide to mesh with the fixed rack 11, thereby fixing the sliding block 20. After the tire 3 is flipped to a vertical position, the clamping disc 15 is positioned relative to the support rod 14, and the sliding block 20 slides to drive the clamping disc 15 to extend to the front, so as to adapt to the narrow assembly space. At the same time, the forklift lifting mechanism will drive the entire attachment to be lifted to a height corresponding to the height of the tire 3 and the drive axle shaft head, saving operating steps, controlling the hydraulic motor 6 to make the tire 3 perform a centering circular motion, adjusting the tire 3 to a suitable installation angle, and then driving the attachment to move by the forklift to transport the tire 3 to the assembly position, and completing the installation of the tire 3 after fixing the tire 3.
Claims
1. An industrial forklift attachment for assisting tire assembly, comprising an attachment mounting frame (7) for fixing to a lifting mechanism of a forklift and a tire (3), a hydraulic motor (6) for adjusting the centering rotation angle of the tire (3) being fixedly connected to the front of the attachment mounting frame (7), a slewing support (5) cooperating with the hydraulic motor (6) being arranged on the front of the attachment mounting frame (7), a support frame (8) being fixedly connected to the front of the slewing support (5), and characterized in that: Both sides of the support frame (8) are hinged with outer arm connecting rods (10), and the support frame (8) is hinged with inner arm connecting rods (12) near both sides; One end of the inner connecting rod (12) and the outer connecting rod (10) of the arm is hinged with an arm support (9), and the support frame (8) is hinged with an arm control cylinder (4) for providing a clamping driving force near both sides, and one end of the arm support (9) is provided with a working disc (13) for clamping a tire (3).
2. The industrial forklift attachment for assisting tire assembly according to claim 1, characterized in that: One end of the cantilever bracket (9) is rotatably connected to a rotating shaft (24), one end of the rotating shaft (24) is fixedly sleeved with the working disc (13), the other end of the rotating shaft (24) is fixedly connected to a flip connecting rod (2), and the cantilever bracket (9) is fixedly connected to a flip control cylinder (1) for driving the flip connecting rod (2) to rotate.
3. The industrial forklift attachment for assisting tire assembly according to claim 2, characterized in that: The rotating shaft (24) is located at one end of the working disc (13) and is fixedly connected to a support rod (14); a sliding groove (16) is provided on one side of the support rod (14); a sliding block (20) is slidably connected in the sliding groove (16); the cross section of the sliding groove (16) is T-shaped and the shape of the sliding block (20) is adapted to the sliding groove (16); One side of the sliding block (20) is fixedly connected to a clamping disc (15) for clamping the tire (3), one side of the sliding block (20) is fixedly connected to a fixed rack (11) for positioning, a positioning mechanism adapted to the fixed rack (11) is arranged in the support rod (14), and the sliding block (20) is fixedly connected to a connecting spring (17) for resetting.
4. The industrial forklift attachment for assisting tire assembly according to claim 3, characterized in that: An inclined groove (18) adapted to the sliding direction of the sliding block (20) is provided at the inner midpoint of the support rod (14); the positioning mechanism comprises a movable rack (19) and a convex block (22); the convex block (22) is fixedly connected to the cantilever bracket (9); the movable rack (19) is slidably arranged in the inclined groove (18) and adapted to the inclined groove (18); The movable rack (19) can mesh with the fixed rack (11); the thickness of the movable rack (19) gradually decreases from the end close to the protrusion (22) to the end away from the protrusion (22) to form an inclined surface; and the length of the movable rack (19) is less than the length of the inclined groove (18).
5. The industrial forklift attachment for assisting tire assembly according to claim 4, characterized in that: The working disc (13) is provided with a second avoidance groove (23) adapted to the protrusion (22) near the midpoint, and the support rod (14) is provided with a first avoidance groove (21) adapted to the protrusion (22) near one end.
6. The industrial forklift attachment for assisting tire assembly according to claim 4, characterized in that: The outer side surface of the protrusion (22) is configured as a smooth arc surface that is matched with the inclined groove (18) and has a gradually changing distance from the rotation axis (24). The thickness variation of the arc surface of the protrusion (22) is adapted to the rotation angle of the support rod (14) relative to the protrusion (22).
7. The industrial forklift attachment for assisting tire assembly according to claim 3, characterized in that: The support rod (14) is arranged to be inclined in a state corresponding to the fully retracted state of the flip control oil cylinder (1), and the sliding length of the sliding block (20) in the inner cavity of the sliding groove (16) is greater than the radius of the tire (3) to be clamped.