A flip caster device for transferring rollers for air transport

Abstract

The present invention discloses a flip caster device for an aviation transport transfer roller, comprising: an integral mounting plate, an upper cover plate, a mounting top plate, a caster, a limit plate, a telescopic control assembly and a pin II; the integral mounting plate is fixedly connected to the aviation transport transfer roller, and the mounting top plate is hinged to the integral mounting plate via a hinge; the caster is fixedly mounted on the mounting top plate, and the caster can be flipped along the axis of the hinge along with the mounting top plate to realize the expansion or retraction of the caster relative to the aviation transport transfer roller; the telescopic control assembly is arranged on the mounting top plate, and the telescopic control assembly can control the expansion and contraction of the pin II relative to the mounting top plate to limit and fix the caster; the present invention can simultaneously realize manual dragging and stacking transportation, has a simple structure, reliable strength, and can adapt to different road conditions.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation transportation, and in particular relates to a flip caster device for an aviation transportation transfer roller. Background Art

[0002] The degree of containerization in military air transport is a key indicator of the state of modern military logistics. Air transport transfer rollers are primarily mounted on the tines of 5-ton airlift loaders to load and unload air transport container pallets, enabling the translational transfer of cargo between the 5-ton airlift loader and the aircraft cargo floor. These rollers are used for military transport aircraft support, offering high efficiency, convenience, and adaptability, improving military supply support efficiency. However, existing air transport transfer rollers lack drag casters. While maintaining strength, they are lightweight and feature a hollowed-out surface. This limited space for casters prevents both manual dragging and stacking, hindering operational flexibility and military air transport support capabilities. Summary of the Invention

[0003] In view of this, the present invention provides a flip caster device for transferring rollers for air transportation, which can simultaneously realize manual dragging and stacking transportation, has a simple structure, reliable strength, and can adapt to different road conditions.

[0004] The present invention is achieved through the following technical solutions:

[0005] A flip caster device for an air transport transfer roller, comprising: an integral mounting plate, an upper cover plate, a mounting top plate, a caster, a limit plate, a telescopic control assembly, and a pin II;

[0006] The integral mounting plate is fixedly connected to the air transport transfer roller, and the mounting top plate is hingedly connected to the integral mounting plate by a hinge; the caster is fixedly mounted on the mounting top plate, and the caster can be rotated along the axis of the hinge with the mounting top plate to realize the expansion or retraction of the caster relative to the air transport transfer roller;

[0007] The telescopic control assembly is arranged on the mounting top plate, and the pin II is fixedly connected to the telescopic control assembly. The telescopic control assembly can control the telescopic movement of the pin II relative to the mounting top plate.

[0008] The upper cover plate and the limit plate are both fixedly connected to the integral mounting plate. Pin hole ⅡA is processed on the upper cover plate, and pin hole ⅡD is processed on the limit plate. When the caster is unfolded, pin Ⅱ can extend and cooperate with the axis of pin hole ⅡA processed on the upper cover plate to limit and fix the caster; after the caster is retracted, pin Ⅱ can extend and cooperate with the axis of pin hole ⅡD on the limit plate to limit and fix the caster.

[0009] Furthermore, the overall mounting plate is a "U"-shaped frame structure formed by a rectangular steel plate and two right-angle bent plates. The two right-angle bent plates are respectively arranged at the two ends of the long side of the rectangular steel plate. One end of each right-angle bent plate is connected to the long side of the rectangular steel plate, and the other end is folded outward 90 degrees.

[0010] The integral mounting plate is arranged at one end of the aviation transport transfer roller. The inner side of the rectangular steel plate of the integral mounting plate is welded to the end face of the aviation transport transfer roller. The part of the right-angle bent plate of the integral mounting plate that is folded outward 90 degrees is welded to the bottom of the aviation transport transfer roller.

[0011] Furthermore, the top plate is mounted as a "U"-shaped structure II consisting of a bottom plate and two side plates located on both sides of the bottom plate, wherein the bottom plate of the "U"-shaped structure II is provided with a boss extending to the side, and a through hole is processed on the bottom plate of the "U"-shaped structure II;

[0012] The two mounting top plates are respectively connected to the two right-angled bent plates of the integral mounting plate in a one-to-one correspondence. The connection method between each mounting top plate and the corresponding right-angled bent plate of the integral mounting plate is as follows: the end where the boss of the mounting top plate is located is connected to the outer bottom of the vertical part of the right-angled bent plate of the integral mounting plate through a hinge;

[0013] Each caster is connected to the through hole of the corresponding bottom plate of the top plate by bolts.

[0014] Furthermore, two opposing welding blocks are provided on both sides of the through hole of the bottom plate for mounting the top plate, and each welding block is processed with a pin hole IB; each side plate of the "U"-shaped structure II is processed with a threaded hole IIIB and a pin hole IIB, wherein the pin hole IIB is closer to the end where the boss is located than the threaded hole IIIB;

[0015] The telescopic control assembly is arranged one-to-one between the side plate of the top plate and the welding block on the same side, and the telescopic control assembly includes a movable connecting plate, a screw, a pin I, a spring I and a spring II;

[0016] The movable connecting plate is a long strip plate II, and threaded holes IIC, IIC and pin holes IIIC are processed in sequence along the length direction of the plate surface;

[0017] Every two movable connecting plates are installed corresponding to one mounting top plate, and each movable connecting plate is arranged between the side plate of the mounting top plate and the welding block. The movable connecting plate is opposite to the side plate of the mounting top plate, and the end of the movable connecting plate facing the boss of the mounting top plate extends out of the side plate of the mounting top plate; the pin hole IIIC of each movable connecting plate is opposite to the threaded hole IIIB of the side plate of the mounting top plate on the same side, the threaded hole IIC of each movable connecting plate is opposite to the pin hole IIB of the side plate of the mounting top plate on the same side, and the threaded hole IC of each movable connecting plate is opposite to the pin hole IB of the welding block of the mounting top plate;

[0018] The tail of the screw passes through the spring II and the pin hole IIIC of the movable connecting plate in sequence, and is then threadedly connected to the threaded hole IIIB of the mounting top plate. One end of the spring II rests on the head of the screw, and the other end rests on the periphery of the pin hole IIIC of the movable connecting plate.

[0019] One end of the pin I is threadedly connected to the movable connecting plate, and the other end passes through the pin hole IB on the welding block; a spring I is provided between the welding block and the movable connecting plate, one end of the spring I abuts against the movable connecting plate, and the other end abuts against the welding block;

[0020] One end of the pin II is threadedly connected to the threaded hole II C of the movable connecting plate, and the other end extends out of the pin hole II B of the mounting top plate.

[0021] Furthermore, the upper cover is a "U"-shaped structure I, the bottom plate of the "U"-shaped structure I is processed with an opening, the two ends of the "U"-shaped structure I are folded outward, and the side plates of the "U"-shaped structure I are processed with pin holes IIA;

[0022] The two upper cover plates are connected to the two right-angled bent plates on the integral mounting plate in a one-to-one correspondence. The connection method between each upper cover plate and the corresponding right-angled bent plate is as follows: the upper cover plate is welded to the upper surface of the horizontal portion of the right-angled bent plate on the integral mounting plate through the outwardly folded portions at both ends of the "U"-shaped structure I; the opening of the upper cover plate is vertically opposite to the opening of the horizontal portion of the integral mounting plate;

[0023] When the casters are unfolded, the mounting top plate is located in the opening of the horizontal portion of the integral mounting plate, and the two side plates of the mounting top plate face upward and are higher than the plane of the opening; the side plates of the upper cover plate and the side plates of the mounting top plate are opposite to each other.

[0024] Furthermore, reinforcing ribs are provided on the limiting plates; every two limiting plates are relatively arranged at both ends of the bending line of each right-angle bent plate on the integral mounting plate, and one folded end of each limiting plate is welded to the outer side of the vertical part of the right-angle bent plate.

[0025] Furthermore, the pin hole IIA of the upper cover plate is a waist-shaped hole; and the pin hole IIB of the mounting top plate is a waist-shaped hole.

[0026] Furthermore, the rectangular steel plate of the integral mounting plate is processed with weight-reducing holes; and the vertical portion of the right-angle bent plate of the integral mounting plate is processed with weight-reducing holes.

[0027] Furthermore, a buffer device is provided on the outer side of the rectangular steel plate of the integral mounting plate.

[0028] Furthermore, the caster is made of polyurethane.

[0029] Beneficial effects:

[0030] (1) The integral mounting plate of the present invention is fixedly connected to the aviation transport transfer roller, the mounting top plate is hinged to the integral mounting plate, the telescopic control assembly is arranged on the mounting top plate, the pin II is fixedly connected to the telescopic control assembly, and the telescopic control assembly can control the telescopic movement of the pin II relative to the mounting top plate; when the caster is unfolded, the pin II can extend and cooperate with the pin hole II A axis processed on the upper cover plate to limit and fix the caster; after the caster is folded, the pin II can extend and cooperate with the pin hole II D axis on the limit plate to limit and fix the caster. The present invention adopts a modular design concept. The flip caster device realizes the design of flippable and hidden casters without changing the original main structure of the aviation transport transfer roller and without affecting the bearing strength of the aviation transport transfer roller. When manual dragging is required, the casters can be unfolded and locked in a limit position, and the aviation transport transfer roller can be connected with a connecting belt or rope device to realize manual dragging and movement; when stacking and transportation are required, the casters can be folded and locked in a limit position, so that the casters are hidden at the bottom of the aviation transport transfer roller. The operation is simple and convenient, and the environmental adaptability is strong.

[0031] (2) The integral mounting plate of the present invention is mounted on one end of the air transport transfer roller. The inner side of the rectangular steel plate of the integral mounting plate is fixedly connected to the end surface of the air transport transfer roller. The outwardly folded portion of the right-angled bend of the integral mounting plate is fixedly connected to the bottom of the air transport transfer roller. The shape of the integral mounting plate allows it to be embedded in the air transport transfer roller without changing the structure of the air transport transfer roller or affecting the original dimensions of the air transport transfer roller.

[0032] (3) The telescopic control assembly of the present invention includes a movable connecting plate, a screw, a pin I, a spring I, and a spring II. By providing a pin hole IB, a threaded hole IIIB, and a pin hole IIB on the mounting top plate; and providing a threaded hole IC, a threaded hole IIC, and a pin hole IIIC on the movable connecting plate; and by combining the cooperative connection between the screw, spring II, threaded hole IIIB, and pin hole IIIC, and the cooperative connection between the pin I, spring I, pin hole IB, the welding block, and the movable connecting plate, the movable connection between the movable connecting plate and the mounting top plate is achieved. By controlling the movable connecting plate, the telescopic movement of pin II relative to the mounting top plate can be controlled.

[0033] In the present invention, the movable connecting plate extends from the side plate of the mounting top plate toward the end where the boss of the mounting top plate is located, and a gap is left between the boss of the mounting top plate and the side plate of the mounting top plate. A hand or other tool can be inserted through the gap to apply an inward force to the telescopic operating part of the movable mounting plate to control the retraction of pin II.

[0034] (4) The present invention has a pin hole ⅡA processed on the side plate of the upper cover. When the caster is unfolded, the pin Ⅱ cooperates with the pin hole ⅡA of the upper cover to limit and lock the caster in the working state, so as to ensure the reliability and stability of the caster in the working state.

[0035] (5) The limit plate of the present invention is provided with a pin hole ⅡD, and each two limit plates are relatively arranged at the two ends of the bending line of each right-angle bent plate on the integral mounting plate. When the caster is retracted, the pin Ⅱ cooperates with the pin hole ⅡD of the limit plate to limit and lock the caster in the folded state, thereby hiding the caster to ensure that the caster does not affect the smooth progress of stacking transportation.

[0036] (6) The pin hole ⅡA of the upper cover plate of the present invention is a waist-shaped hole, and the pin hole ⅡB of the mounting top plate is a waist-shaped hole. Compared with the circular hole, a larger movable space can be reserved to ensure the smooth extension and retraction of the pin Ⅱ.

[0037] (7) The rectangular steel plate of the integral mounting plate of the present invention is processed with weight-reducing holes; the vertical part of the right-angle bent plate of the bottom plate is processed with weight-reducing holes. The structural design is reasonable, achieving a balance between strength and lightweight requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the installation position of the flip caster device on the aviation transport transfer roller;

[0039] Figure 2 is an overall schematic diagram of the flip caster device of the present invention;

[0040] Figure 3 1. It is a schematic diagram of the main structure of the flip caster device;

[0041] Figure 4 This is a schematic diagram of the caster in the unfolded state;

[0042] Figure 5 This is a schematic diagram of the casters folded up;

[0043] Figure 6 Schematic diagram of the overall mounting plate structure;

[0044] Figure 7 Schematic diagram of the top plate installation structure;

[0045] Figure 8 Schematic diagram of the upper cover structure;

[0046] Figure 9 is a schematic diagram of an active connection plate;

[0047] Among them, 1-integral mounting plate, 2-upper cover plate, 22-pin hole IIA, 3-mounting top plate, 31-welding block, 32-pin hole IIB, 33-threaded hole IIIB, 4-movable connecting plate, 41-threaded hole IIC, 42-threaded hole IIC, 43-pin hole IIIC, 5-spring I, 6-spring II, 7-hinge, 8-castor, 9-limiting plate, 10-pin I, 11-pin II, 12-screw, 13-buffer device, 14-air transport transfer roller. DETAILED DESCRIPTION

[0048] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0049] This embodiment provides a flip caster device for air transport transfer rollers, see attached Figure 1-3 , including an integral mounting plate 1, an upper cover plate 2, a mounting top plate 3, casters 8, a limit plate 9, a telescopic control assembly and a pin II 11;

[0050] The integral mounting plate 1 is fixedly connected to the air transport transfer roller, and the mounting top plate 3 is hingedly connected to the integral mounting plate 1 via a hinge 7. The caster 8 is fixedly mounted on the mounting top plate 3 and can be rotated along the axis of the hinge 7 with the mounting top plate 3 to realize the expansion or contraction of the caster 8 relative to the air transport transfer roller.

[0051] The telescopic control assembly is arranged on the mounting top plate 3, and the pin II 11 is fixedly connected to the telescopic control assembly. The telescopic control assembly can control the telescopic movement of the pin II 11 relative to the mounting top plate 3;

[0052] The upper cover plate 2 and the limit plate 9 are both fixedly connected to the integral mounting plate 1. The upper cover plate 2 is processed with a pin hole ⅡA22, and the limit plate 9 is processed with a pin hole ⅡD. When the caster 8 is unfolded, see the attached Figure 4 , the pin Ⅱ 11 extends out and matches with the pin hole Ⅱ A22 on the upper cover plate 2 to limit and fix the caster; after the caster 8 is folded, see the attached Figure 5 , the pin II 11 extends out and cooperates with the pin hole II D on the limiting plate 9 to limit and fix the caster.

[0053] See attached Figure 6 The overall mounting plate 1 is a "U"-shaped frame structure formed by a rectangular steel plate and two right-angle bent plates. The two right-angle bent plates are respectively arranged at the two ends of the long side of the rectangular steel plate. One end of each right-angle bent plate is connected to the long side of the rectangular steel plate, and the other end is bent outward 90 degrees. Weight-reducing holes are processed on the rectangular steel plate. An opening is processed on the horizontal part of each right-angle bent plate to leave space for the flipping and operation of the telescopic control component of the caster 8. A weight-reducing hole is processed on the vertical part of each right-angle bent plate.

[0054] See attached Figure 1 The integral mounting plate 1 is arranged at one end of the aviation transport transfer roller 14. The inner side of the rectangular steel plate of the integral mounting plate 1 is welded to the end face of the aviation transport transfer roller 14. A buffer device 13 is provided on the outer side to prevent the aviation transport transfer roller 14 from damaging the aircraft or other equipment during operation. The portion of the right-angled bent plate of the integral mounting plate 1 that is folded outward 90 degrees is welded to the bottom of the aviation transport transfer roller.

[0055] See attached Figure 7The mounting top plate 3 is a "U"-shaped structure II consisting of a bottom plate and two side plates located on both sides of the bottom plate. The bottom plate of the "U"-shaped structure II is extended to the side to form a boss. The bottom plate of the "U"-shaped structure II is processed with a through hole for mounting casters; two oppositely arranged welding blocks 31 are respectively provided on both sides of the through hole in the bottom plate, and each welding block is processed with a pin hole IB; each side plate of the "U"-shaped structure II is processed with a threaded hole IIIB33 and a pin hole IIB32, wherein the pin hole IIB32 is a waist-shaped hole, and the pin hole IIB32 is closer to the end where the boss is located than the threaded hole IIIB33;

[0056] The material of the caster 8 is polyurethane;

[0057] The connection relationship between the caster 8, the mounting top plate 3 and the integral mounting plate 1 is as follows: the two mounting top plates 3 are respectively connected to the two right-angled bent plates of the integral mounting plate 1 in a one-to-one correspondence, and the connection method of each mounting top plate 3 to the corresponding right-angled bent plate of the integral mounting plate 1 is as follows: the end where the boss of the mounting top plate 3 is located is connected to the outer bottom of the vertical part of the right-angled bent plate on the integral mounting plate 1 through a hinge; each caster 8 is connected to the through hole of the bottom plate of the corresponding mounting top plate 3 by bolts. When the caster 8 is unfolded, the mounting top plate 3 is located in the opening of the horizontal part of the integral mounting plate 1, and the two side plates of the mounting top plate 3 face upward and are higher than the plane where the opening is located;

[0058] See attached Figure 8 The upper cover plate 2 is a "U"-shaped structure Ⅰ, the bottom plate of the "U"-shaped structure Ⅰ is processed with an opening, the two ends of the "U"-shaped structure Ⅰ are folded outward, and the side plates of the "U"-shaped structure Ⅰ are processed with pin holes ⅡA22; the pin holes ⅡA22 are waist-shaped holes.

[0059] The connection relationship between the upper cover plate 2 and the integral mounting plate 1 is as follows: the two upper cover plates 2 are connected to the two right-angled bent plates on the integral mounting plate 1 in a one-to-one correspondence, and each upper cover plate 3 is connected to the corresponding right-angled bent plate in the following manner: the upper cover plate 2 is welded to the upper surface of the horizontal portion of the right-angled bent plate on the integral mounting plate 1 through the outwardly folded portions at both ends of the "U"-shaped structure I, and the opening of the upper cover plate 2 is vertically opposite to the opening of the horizontal portion of the integral mounting plate 1; when the casters 8 are unfolded, the side panels of the upper cover plate 2 and the side panels of the mounting top plate 3 are aligned one by one; the opening of the upper cover plate 2 leaves space for the casters to be fully unfolded, while also achieving further weight reduction;

[0060] See attached Figure 2 The limiting plate 9 is a long strip plate Ⅰ with one end folded 90 degrees and a pin hole ⅡD provided at the other end. The limiting plate 9 is provided with a reinforcing rib; every two limiting plates 9 are relatively arranged at the two ends of the bending line of each right-angle bent plate on the integral mounting plate 1, and one end of each limiting plate 9 is welded to the outer side of the vertical part of the right-angle bent plate.

[0061] See attached Figure 9The telescopic control assembly is arranged one by one between the side plate of the top plate 3 and the welding block 31 on the same side. The telescopic control assembly includes a movable connecting plate 4, a screw 12, a pin I 10, a spring I 5 and a spring II 6;

[0062] The movable connecting plate 4 is a long strip plate II, and the plate surface is processed with threaded holes I C41, threaded holes II C42 and pin holes III C43 in sequence along the length direction;

[0063] Every two movable connecting plates 4 are installed corresponding to one mounting top plate 3, and each movable connecting plate 4 is arranged between the side plate of the mounting top plate 3 and the welding block 31. The movable connecting plates 4 are opposite to the side plates of the mounting top plate 3, and the movable connecting plates 4 extend from the side plates of the mounting top plate 3 toward the end where the boss of the mounting top plate 3 is located, and the extended portion is the telescopic operating portion; the pin hole IIIC43 of each movable connecting plate 4 is opposite to the threaded hole IIIB33 of the side plate of the mounting top plate 3 on the same side, the threaded hole IIC42 of each movable connecting plate 4 is opposite to the pin hole IIB32 of the side plate of the mounting top plate 3 on the same side, and the threaded hole IC41 of each movable connecting plate 4 is opposite to the pin hole IB of the welding block 31 on the mounting top plate 3;

[0064] The tail of the screw 12 passes through the spring II 6 and the pin hole IIIC43 of the movable connecting plate 4 in sequence, and is then threadedly connected to the threaded hole IIIB33 of the mounting top plate 3. One end of the spring II 6 rests on the head of the screw 12, and the other end rests on the periphery of the pin hole IIIC43 on the movable connecting plate 4.

[0065] One end of the pin Ⅰ10 is threadedly connected to the movable connecting plate 4, and the other end passes through the pin hole ⅠB on the welding block 31; a spring Ⅰ5 is provided between the welding block and the movable connecting plate 4, one end of the spring Ⅰ5 abuts against the movable connecting plate 4, and the other end abuts against the welding block 31;

[0066] One end of the pin II 11 is threadedly connected to the threaded hole II C42 of the movable connecting plate, and the other end extends out of the pin hole II B of the mounting top plate 3; when the caster is retracted, the pin II 11 cooperates with the pin hole II D of the limit plate 9 to limit lock the caster in the folded state; when the caster is unfolded, the pin II 11 cooperates with the pin hole II A22 of the upper cover plate 2 to limit lock the caster in the working state.

[0067] Working process:

[0068] (1) The process of unfolding the caster 8: When the caster 8 is in the retracted state, the pin II11 corresponding to the caster 8 is located in the pin hole II D of the limit plate 9, and a corresponding force is applied to the telescopic operating part of the two movable connecting plates 4 of the caster 8. The movable connecting plate 4 moves inward along the screw 12, and the pin II11 fixedly connected to the movable connecting plate 4 retracts. The pin II11 leaves the pin hole II D of the limit plate 9, and the caster 8 is flipped over; when the caster 8 is unfolded to the point where the pin II11 is located near the upper cover plate 2, the corresponding force is continued to be applied to the telescopic operating part until the pin II11 is opposite to the pin hole IIA22 of the upper cover plate 2, and the movable connecting plate 4 is released. The movable connecting plate 4 returns to its original position under the action of the spring, and the pin II11 enters the pin hole IIA22 of the upper cover plate 2, locking and limiting the caster 8;

[0069] (2) The process of retracting the caster 8: Similar to the process of deploying the caster 8, when the caster 8 is in the deployed state, the pin II11 corresponding to the caster 8 is located in the pin hole II A22 of the upper cover 2. By controlling the telescopic operation part of the movable connecting plate 4, the pin II11 is moved away from the pin hole II A22 of the upper cover 2, and the caster is flipped over. Then, the pin II11 is moved into the pin hole II D of the limit plate 9 by controlling the telescopic operation part of the movable connecting plate 4, and the caster 8 is locked and limited.

[0070] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flip caster device for transferring rollers for air transport, characterized in that: include: Integral mounting plate, upper cover, mounting top plate, casters, limit plates, telescopic control assembly and pin II; The integral mounting plate is fixedly connected to the air transport transfer roller, and the mounting top plate is hingedly connected to the integral mounting plate by a hinge; the caster is fixedly mounted on the mounting top plate, and the caster can be rotated along the axis of the hinge with the mounting top plate to realize the expansion or retraction of the caster relative to the air transport transfer roller; The telescopic control assembly is arranged on the mounting top plate, and the pin II is fixedly connected to the telescopic control assembly. The telescopic control assembly can control the telescopic movement of the pin II relative to the mounting top plate. The upper cover and the limit plate are both fixedly connected to the integral mounting plate. A pin hole ⅡA is machined on the upper cover, and a pin hole ⅡD is machined on the limit plate. When the caster is unfolded, the pin Ⅱ can extend and cooperate with the axis of the pin hole ⅡA machined on the upper cover to limit and fix the caster; when the caster is retracted, the pin Ⅱ can extend and cooperate with the axis of the pin hole ⅡD on the limit plate to limit and fix the caster. The overall mounting plate is a "U"-shaped frame structure formed by a rectangular steel plate and two right-angle bent plates. The two right-angle bent plates are respectively set at the two ends of the long side of the rectangular steel plate. One end of each right-angle bent plate is connected to the long side of the rectangular steel plate, and the other end is folded outward 90 degrees. The integral mounting plate is provided at one end of the air transport transfer roller. The inner side of the rectangular steel plate of the integral mounting plate is welded to the end face of the air transport transfer roller. The portion of the right-angled bent plate of the integral mounting plate that is folded outward 90 degrees is welded to the bottom of the air transport transfer roller. The top mounting plate is a "U"-shaped structure II consisting of a bottom plate and two side plates located on either side of the bottom plate. The bottom plate of the "U"-shaped structure II is provided with a boss extending to the side, and a through hole is machined on the bottom plate of the "U"-shaped structure II. The two mounting top plates are respectively connected to the two right-angled bent plates of the integral mounting plate in a one-to-one correspondence. The connection method between each mounting top plate and the corresponding right-angled bent plate of the integral mounting plate is as follows: the end where the boss of the mounting top plate is located is connected to the outer bottom of the vertical part of the right-angled bent plate of the integral mounting plate through a hinge; Each caster is connected to the corresponding through hole of the bottom plate of the mounting top plate by bolts; Two opposing welding blocks are provided on either side of the through hole on the bottom plate for mounting the top plate, each of which is machined with a pin hole IB; each side plate of the "U"-shaped structure II is machined with a threaded hole IIIB and a pin hole IIB, wherein the pin hole IIB is closer to the end where the boss is located than the threaded hole IIIB; The telescopic control assembly is arranged one-to-one between the side plate of the top plate and the welding block on the same side, and the telescopic control assembly includes a movable connecting plate, a screw, a pin I, a spring I and a spring II; The movable connecting plate is a long strip plate II, and threaded holes IIC, IIC and pin holes IIIC are processed in sequence along the length direction of the plate surface; Every two movable connecting plates are installed corresponding to one mounting top plate, and each movable connecting plate is arranged between the side plate of the mounting top plate and the welding block. The movable connecting plate is opposite to the side plate of the mounting top plate, and the end of the movable connecting plate facing the boss of the mounting top plate extends out of the side plate of the mounting top plate; the pin hole IIIC of each movable connecting plate is opposite to the threaded hole IIIB of the side plate of the mounting top plate on the same side, the threaded hole IIC of each movable connecting plate is opposite to the pin hole IIB of the side plate of the mounting top plate on the same side, and the threaded hole IC of each movable connecting plate is opposite to the pin hole IB of the welding block of the mounting top plate; The tail of the screw passes through the spring II and the pin hole IIIC of the movable connecting plate in sequence, and is then threadedly connected to the threaded hole IIIB of the mounting top plate. One end of the spring II rests on the head of the screw, and the other end rests on the periphery of the pin hole IIIC of the movable connecting plate. One end of the pin I is threadedly connected to the movable connecting plate, and the other end passes through the pin hole IB on the welding block; a spring I is provided between the welding block and the movable connecting plate, one end of the spring I abuts against the movable connecting plate, and the other end abuts against the welding block; One end of the pin II is threadedly connected to the threaded hole II C of the movable connecting plate, and the other end extends out of the pin hole II B of the mounting top plate.

2. A flip caster device for an air transport transfer roller as claimed in claim 1, characterized in that: The upper cover is a "U"-shaped structure I. The bottom plate of the "U"-shaped structure I is processed with an opening, the two ends of the "U"-shaped structure I are folded outward, and the side plates of the "U"-shaped structure I are processed with pin holes IIA; The two upper cover plates are connected to the two right-angled bent plates on the integral mounting plate in a one-to-one correspondence. The connection method between each upper cover plate and the corresponding right-angled bent plate is as follows: the upper cover plate is welded to the upper surface of the horizontal portion of the right-angled bent plate on the integral mounting plate through the outwardly folded portions at both ends of the "U"-shaped structure I; the opening of the upper cover plate is vertically opposite to the opening of the horizontal portion of the integral mounting plate; When the casters are unfolded, the mounting top plate is located in the opening of the horizontal portion of the integral mounting plate, and the two side plates of the mounting top plate face upward and are higher than the plane of the opening; the side plates of the upper cover plate and the side plates of the mounting top plate are opposite to each other.

3. A flip caster device for transferring rollers for aviation transportation as claimed in claim 1, characterized in that: The limiting plates are provided with reinforcing ribs; every two limiting plates are relatively arranged at both ends of the bending line of each right-angle bent plate on the integral mounting plate, and one folded end of each limiting plate is welded to the outer side of the vertical part of the right-angle bent plate.

4. A flip caster device for an air transport transfer roller as claimed in claim 1, characterized in that: The pin hole IIA of the upper cover plate is a waist-shaped hole; the pin hole IIB of the mounting top plate is a waist-shaped hole.

5. A flip caster device for an air transport transfer roller according to any one of claims 1 to 4, characterized in that: The rectangular steel plate of the integral mounting plate is processed with weight-reducing holes; the vertical portion of the right-angle bent plate of the integral mounting plate is processed with weight-reducing holes.

6. A flip caster device for an air transport transfer roller according to any one of claims 1 to 4, characterized in that: A buffer device is provided on the outer side of the rectangular steel plate of the integral mounting plate.

7. A flip caster device for an air transport transfer roller according to any one of claims 1 to 4, characterized in that: The caster is made of polyurethane.

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