Special hoisting and fixing device and assembly for aircraft external store

Abstract

The utility model provides a special hoisting and fixing device and component for an external store of an airplane, and belongs to the field of auxiliary devices for fixing and hoisting the external store of the airplane. The special hoisting and fixing assembly for the external store of the airplane consists of at least two special hoisting and fixing devices for the external store of the airplane, wherein each special hoisting and fixing device for the external store of the airplane comprises a hoisting supporting plate, a screw rod, a pressing plate and a hoisting piece. According to the special hoisting and fixing device and the special hoisting and fixing assembly for the airplane external store, the airplane external store with different sizes and shapes can be fixed in the transverse direction and the vertical direction (the plane where the width direction of a packaging box is located), so that the transportation and transition time is greatly saved. The special hoisting and fixing device and the special hoisting and fixing assembly for the external store of the airplane have high universality and adaptability, and devices of different specifications can be adjusted and designed according to the profile sections of different cabins.

Description

Technical Field

[0001] The utility model belongs to the field of auxiliary devices for fixing and hoisting aircraft external stores, and particularly relates to a special hoisting and fixing device and assembly for aircraft external stores. Background Art

[0002] Military aircraft external stores include pylons, equipment, auxiliary fuel tanks and other equipment. Their shapes are generally circular, rectangular or quasi-rectangular, etc. Their volumes vary, and their weights are mostly in the range of dozens of kilograms to one thousand kilograms. Moreover, many of them also have special-shaped components such as intake and exhaust fairings. It is obviously essential to store, transport and fix these aircraft external stores. As an indispensable equipment in the ground support equipment for aircraft external stores, the packing box is particularly important and necessary during the transportation and storage of aircraft external stores. Most of the currently used packing boxes are metal packing boxes, and there are also some made of other materials. Of course, the problems of fixing and hoisting the external stores in the packing box also follow. At present, there is no specific equipment for fixing aircraft external stores in the packing box.

[0003] Generally, there is little special research and design for the special fixing and hoisting of such aircraft external stores. Most of them adopt conventional fixing measures, such as using binding ropes to tie, bolts to fix or filling materials as temporary methods to fix aircraft external stores, and there are few special fixing devices. As an equipment accessory for the external store packing box, it is temporarily processed or purchased when needed, which greatly reduces the efficiency of transfer transportation and daily management and increases various uncertain risks. Summary of the Utility Model

[0004] The utility model is made to solve the above problems, and aims to provide a special hoisting and fixing device and assembly for aircraft external stores.

[0005] The utility model provides a special hoisting and fixing device for aircraft external stores, which is arranged in a packing box to hoist and limit the space of the aircraft external stores, and has the following characteristics: a hoisting pallet, which is a long strip board and is detachably fixed to the inner bottom of the packing box along the width direction of the packing box; two screws, which are respectively vertically fixed at both ends of the hoisting pallet and face the same side, and the plane formed by the screw and the hoisting pallet is in the plane of the width direction of the packing box; a pressing plate, which is a long strip board, and both ends of it are movably and detachably connected to the ends of the two screws far away from the hoisting pallet. The space enclosed by the hoisting pallet, the two screws and the pressing plate is used to surround and sleeve the aircraft external stores; and two hoisting members, which are respectively arranged at both ends of the pressing plate. The hoisting member is an "L" - shaped structure. One end of the hoisting member is a first fixing rod with an external thread. The first fixing rod passes through the pressing plate and is fixed by a nut. The other end of the hoisting member is a second fixing rod, and the second fixing rod is inserted into a hole reserved on the packing box, finally fixing the pressing plate in the packing box.

[0006] In the dedicated lifting and fixing device for aircraft external stores provided by the present utility model, it may further have the following features: Among them, the lifting pallet is a long strip plate with a "U"-shaped cross-section in the width direction, and each of the "U"-shaped bottoms at both ends thereof has a first through hole. The dedicated lifting and fixing device for aircraft external stores further includes two fixing blocks, which are embedded and fixed in the "U"-shaped structures at both ends of the lifting pallet. The fixing blocks have fixing columns extending laterally, and the fixing columns are inserted into the holes reserved on the packaging box, so that the fixing blocks and the lifting pallet fixed thereto are fixed to the inner bottom in the width direction of the packaging box. The bottom of the screw passes through the first through hole in the vertical direction and is screwed and fixed to the fixing block.

[0007] In the dedicated lifting and fixing device for aircraft external stores provided by the present utility model, it may further have the following features: Among them, the first through hole is an oblong hole.

[0008] In the dedicated lifting and fixing device for aircraft external stores provided by the present utility model, it may further have the following features: Among them, the fixing blocks are fixed in the "U"-shaped structures at both ends of the lifting pallet by stud pins passing through the two side walls of the "U" of the lifting pallet and themselves.

[0009] In the dedicated lifting and fixing device for aircraft external stores provided by the present utility model, it may further have the following features: Among them, each of the two ends of the pressing plate has a second through hole. The top of the screw passes through the second through hole and is fixed by a lifting ring with an internal threaded hole, so as to cooperate with the lifting pallet and the pressing plate to clamp the aircraft external store in the vertical direction. The lifting ring is used for the overall lifting of the aircraft external store and the lifting and fixing device.

[0010] In the dedicated lifting and fixing device for aircraft external stores provided by the present utility model, it may further have the following features: Among them, each of the two ends of the pressing plate has a third through hole. The first fixing rod passes upward through the third through hole and is fixed by a nut. The third through hole is an oblong hole.

[0011] In the dedicated lifting and fixing device for aircraft external stores provided by the present utility model, it may further have the following features: Among them, the top of the aircraft external store has a protruding lifting lug, and the pressing plate has an upwardly protruding bent section. The bent section forms a groove with an opening facing downward, and the groove can be matched and embedded with the lifting lug to limit its displacement in the length direction of the packaging box.

[0012] In the special lifting and fixing device for aircraft external stores provided by the present utility model, it may further have the following features: Among them, the special lifting and fixing device for aircraft external stores further includes a limiting mechanism. The limiting mechanism includes: adjusting bolts, with a number of several. The adjusting bolts are rotatably inserted through two opposite wall surfaces of the bending section along the length direction of the packing box, and the adjusting bolts on the two wall surfaces face the inner space of the groove relatively; and limiting push blocks, fixed at the ends of the adjusting bolts and located inside the groove. By rotating the length of the adjusting bolts screwed into the wall surface of the bending section, the limiting push blocks can be made to abut against the lifting lugs. The several limiting push blocks fixed on the several adjusting bolts inserted through the two opposite wall surfaces cooperate together to fix and limit the displacement of the lifting lugs in the groove in the length direction of the packing box.

[0013] In the special lifting and fixing device for aircraft external stores provided by the present utility model, it may further have the following features: Among them, each component in the special lifting and fixing device for aircraft external stores is made of high-strength alloy steel material.

[0014] The present utility model also provides a special lifting and fixing assembly for aircraft external stores, which has the following features. It is composed of the special lifting and fixing device for aircraft external stores in any one of the foregoing items. Among them, the number of the special lifting and fixing devices for aircraft external stores is at least 2, and several special lifting and fixing devices for aircraft external stores sleeved and surrounded the aircraft external stores in sequence along the length direction of the aircraft external stores.

[0015] Functions and effects of the utility model

[0016] According to a special lifting and fixing device and assembly for aircraft external stores involved in the present utility model, since the special lifting and fixing assembly for aircraft external stores is composed of at least 2 special lifting and fixing devices for aircraft external stores. The special lifting and fixing device for aircraft external stores is arranged in the packing box and conducts lifting and space limitation on the aircraft external stores, including: a lifting support plate, which is a long strip plate and is detachably fixed to its inner bottom along the width direction of the packing box; screws, with a number of 2, respectively vertically fixed at both ends of the lifting support plate and facing the same side. The plane formed by the screws and the lifting support plate is in the plane of the width direction of the packing box; a pressing plate, which is a long strip plate, and both ends of it are detachably connected to the ends of the 2 screws far away from the lifting support plate movably. The space enclosed by the lifting support plate, the 2 screws and the pressing plate is used for surrounding and sleeving the aircraft external stores; and lifting members, with a number of 2, respectively arranged at both ends of the pressing plate. The lifting members are in an "L" shape structure. One end of the lifting member is a first fixing rod with an external thread, and the first fixing rod passes through the pressing plate and is fixed by a nut. The other end of the lifting member is a second fixing rod, and the second fixing rod is inserted into the holes reserved on the packing box, finally making the pressing plate fixed in the packing box.

[0017] Therefore, the special lifting and fixing device and component for aircraft external stores of the present utility model can fix aircraft external stores of different sizes and shapes in the horizontal and vertical directions (the plane where the width direction of the packing box is located), greatly saving the time for transportation and transfer. Moreover, the special lifting and fixing device and component for aircraft external stores of the present utility model have high versatility and adaptability, and can be adjusted and designed with different specifications according to the outer shape cross-sections of different cabins. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic structural diagram of a special lifting and fixing component for aircraft external stores according to an embodiment of the present utility model;

[0019] Figure 2 FIG. is an assembly drawing of a special lifting and fixing device for aircraft external stores according to an embodiment of the present utility model;

[0020] Figure 3 FIG. is a front view of a special lifting and fixing device for aircraft external stores according to an embodiment of the present utility model;

[0021] Figure 4 FIG. is a top view of a special lifting and fixing device for aircraft external stores according to an embodiment of the present utility model;

[0022] Figure 5 FIG. is a side view of a special lifting and fixing device for aircraft external stores according to an embodiment of the present utility model;

[0023] Figure 6 FIG. is an exploded structural view of a special lifting and fixing device for aircraft external stores according to an embodiment of the present utility model;

[0024] Figure 7 FIG. is Figure 5 an enlarged view of area A in FIG.;

[0025] Figure 8 FIG. is Figure 7 a perspective view from the corresponding upward viewing angle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the following embodiments will specifically describe a special lifting and fixing device and component for aircraft external stores of the present utility model in conjunction with the accompanying drawings.

[0027] <EMBODIMENT>

[0028] Figure 1 FIG. is a schematic structural diagram of a special lifting and fixing component for aircraft external stores according to an embodiment of the present utility model.

[0029] As Figure 1As shown in the figure, this embodiment provides a special lifting and fixing component 200 for aircraft external stores, which is composed of two special lifting and fixing devices 100 for aircraft external stores.

[0030] The special lifting and fixing device 100 for aircraft external stores is arranged in the packing box 1 and is used for lifting and space limitation of the aircraft external stores. Two special lifting and fixing devices 100 for aircraft external stores sleeved and surrounded the aircraft external stores in sequence along the length direction of the aircraft external stores. The top of the aircraft external stores in this embodiment has a raised lug 2.

[0031] Figure 2 It is an assembly drawing of a special lifting and fixing device for aircraft external stores according to an embodiment of the present utility model; Figure 3 It is a front view of a special lifting and fixing device for aircraft external stores according to an embodiment of the present utility model; Figure 4 It is a top view of a special lifting and fixing device for aircraft external stores according to an embodiment of the present utility model; Figure 5 It is a side view of a special lifting and fixing device for aircraft external stores according to an embodiment of the present utility model.

[0032] As Figures 2 to 5 shown, the special lifting and fixing device 100 for aircraft external stores in this embodiment includes a lifting support plate 10, a fixing block 20, a screw rod 30, a pressing plate 40, a limiting mechanism 50 and a lifting member 60.

[0033] Figure 6 It is a structural explosion diagram of a special lifting and fixing device for aircraft external stores according to an embodiment of the present utility model.

[0034] As Figures 1 to 6 shown, the lifting support plate 10 is a long strip plate with a "U" - shaped cross - section in the width direction, and each of the "U" - shaped bottoms at both ends has a kidney - shaped first through - hole 10a.

[0035] The number of fixing blocks 20 is 2, which are respectively embedded and fixed in the "U" - shaped structures at both ends of the lifting support plate 10. The fixing blocks 20 have laterally extending fixing columns 20a, and the fixing columns 20a are inserted into the holes reserved on the packing box 1, so that the fixing blocks 20 and the lifting support plate 10 fixed thereto are fixed to the inner bottom in the width direction of the packing box 1.

[0036] The fixing blocks 20 are fixed to the "U" - shaped structures at both ends of the lifting support plate 10 by passing through the stud pins 3 of the two side walls of the "U" - shape of the lifting support plate 10 and themselves.

[0037] The number of screw rods 30 is 2, and their bottoms pass through the first through - holes 10a in the vertical direction and are screwed and fixed with the fixing blocks 20. The two screw rods 30 face the same side, and the plane formed by the screw rods 30 and the lifting support plate 10 is in the plane of the width direction of the packing box 1.

[0038] The pressure plate 40 is a long strip plate, each of which has a circular second through hole 40a at both ends, and each of which has a waist-shaped third through hole 40b at both ends. The two second through holes 40a are passed through by two screws 30 in a corresponding matching manner, and are fixed by a lifting ring 4 with an internal threaded hole, so as to cooperate with the lifting bracket 10 and the pressure plate 40 to clamp the aircraft external objects in the vertical direction.

[0039] The lifting ring 4 in this embodiment is used for integral lifting of the aircraft external attachment and the lifting fixture 100 .

[0040] The pressure plate 40 has an upwardly protruding bending section 40 c, and the bending section 40 c forms a groove 40 d with an opening facing downward. The groove 40 d can be matched and embedded in the lifting ear 2 to limit the displacement of the aircraft external attachment in the length direction inside the packaging box 1 .

[0041] Figure 7 yes Figure 5 A magnified image of area A; Figure 8 yes Figure 7 The corresponding stereogram from the upward angle.

[0042] like Figures 1 to 8 As shown, the limiting mechanism 50 includes an adjusting bolt 51 and a limiting push block 52 .

[0043] There are four adjusting bolts 51, which are rotatably arranged along the length direction of the packaging box 1 through two opposite walls of the bending section 40c (two adjusting bolts 51 are arranged on each wall), and the adjusting bolts 51 on the two walls are relatively oriented toward the internal space of the groove 40d.

[0044] The number of the limiting push blocks 52 is 2. Among them, the ends of the two adjusting bolts 51 passing through one wall of the bending section 40c are fixed with a limiting push block 52, and two opposite limiting push blocks 52 are respectively arranged on the two opposite walls, and the limiting push blocks 52 are located inside the groove 40d. By rotating the adjusting bolt 51 to the length of the wall of the bending section 40c, the limiting push block 52 can be abutted against the ear 2, and the two limiting push blocks 52 fixed on the four adjusting bolts 51 passing through the two opposite walls cooperate together to clamp and fix the ear 2 in the groove 40d in the length direction of the packaging box 1 and limit displacement.

[0045] There are two hanging parts 60, which are respectively arranged at the two ends of the pressure plate 40. The hanging part 60 is an "L"-shaped structure. One end of the hanging part 60 is a first fixing rod 60a with an external thread. The first fixing rod 60a passes through the pressure plate 40 and is fixed by a nut 5. The other end of the hanging part 60 is a second fixing rod 60b. The second fixing rod 60b is inserted into the hole reserved on the packaging box 1, so that the pressure plate 40 is finally fixed in the packaging box 1.

[0046] All components of the special lifting and fixing device 100 for aircraft external stores in this embodiment are made of high-strength alloy steel materials.

[0047] Usage process of the special lifting and fixing assembly 200 for aircraft external stores:

[0048] S10. Insert 2 fixing blocks 20 into both ends of the lifting pallet 10 respectively and fix them with stud pins 3.

[0049] S20. Pass 2 screw rods 30 through the first through holes 10a at both ends of the lifting pallet 10 and screw them into the corresponding fixing blocks 20 by screwing.

[0050] S30. Place the lifting pallet 10 under the aircraft external store, with 2 screw rods 30 facing upwards.

[0051] S40. Install the limiting mechanism 50 into the pressure plate 40, use the pressure plate 40 to buckle the lifting lug 2 of the aircraft external store and tighten the adjusting bolt 51 of the limiting mechanism 50. Then, screw the upper ends of the 2 screw rods 30 into 2 corresponding second through holes 40a of the pressure plate 40 from below and tighten with the eyebolt 4, so that the pressure plate 40, 2 screw rods 30 and the lifting pallet 10 are jointly connected into a whole and the aircraft external store is hugged.

[0052] S50. Lift the eyebolt 4 to move the whole device into the packing box 1, and embed the fixing column 20a of the fixing block 20 into the holes reserved on the side wall of the packing box 1.

[0053] S60. Screw the first fixing rod 60a of the lifting member 60 into the third through hole 40b, and embed the second fixing rod 60b into the holes reserved on the side wall of the packing box 1. Subsequently, tighten the first fixing rod 60a and the pressure plate 40 with the nut 5 to fix the position of the upper part of the whole device. In this way, the aircraft external store is completely fixed in the packing box 1 in three dimensions, ensuring the safety of the aircraft external store during transportation and transfer.

[0054] Functions and effects of the embodiment

[0055] A special lifting and fixing component for aircraft external stores according to this embodiment is composed of two special lifting and fixing devices for aircraft external stores. The special lifting and fixing devices for aircraft external stores are arranged in the packing box and are used for lifting and space limitation of the aircraft external stores, and include: a lifting pallet, which is a long strip plate and is detachably fixed to the inner bottom of the packing box along the width direction of the packing box; two screws, which are respectively vertically fixed at both ends of the lifting pallet and face the same side, and the plane formed by the screw and the lifting pallet is in the plane of the width direction of the packing box; a pressing plate, which is a long strip plate, and both ends of the pressing plate are movably and detachably connected to the ends of the two screws away from the lifting pallet. The space enclosed by the lifting pallet, the two screws and the pressing plate is used for surrounding and sleeving the aircraft external stores; and two lifting members, which are respectively arranged at both ends of the pressing plate. The lifting members are in an "L" shape. One end of the lifting member is a first fixing rod with an external thread. The first fixing rod passes through the pressing plate and is fixed by a nut. The other end of the lifting member is a second fixing rod, and the second fixing rod is inserted into the holes reserved on the packing box, and finally the pressing plate is fixed in the packing box.

[0056] Therefore, the special lifting and fixing device and component for aircraft external stores in this embodiment can fix aircraft external stores of different sizes and shapes in the horizontal and vertical directions (the plane of the width direction of the packing box), greatly saving the time of transportation and transfer. And the special lifting and fixing device and component for aircraft external stores in this embodiment have high versatility and adaptability, and can adjust and design devices of different specifications according to the external shape cross-sections of different cabins.

[0057] Furthermore, the lifting pallet is a long strip plate with a "U"-shaped cross-section in the width direction. Each of the "U"-shaped bottoms at both ends thereof has a first through hole. The special lifting and fixing device for aircraft external stores further includes two fixing blocks. The fixing blocks are embedded and fixed in the "U"-shaped structures at both ends of the lifting pallet. The fixing blocks have fixing columns extending laterally. The fixing columns are inserted into the holes reserved on the packing box, so that the fixing blocks and the lifting pallet fixed thereto are fixed to the inner bottom of the packing box in the width direction. The bottom of the screw passes through the first through hole in the vertical direction and is screwed and fixed to the fixing block. With such a setting, the special lifting and fixing device for aircraft external stores can hold the aircraft external stores and be fixed at the bottom of the packing box.

[0058] Furthermore, the first through hole is an oblong hole. With such a setting, the position of the screw can be finely adjusted to adapt to aircraft external stores of different sizes.

[0059] Furthermore, the fixing blocks are fixed in the "U"-shaped structures at both ends of the lifting pallet through stud pins passing through the two side walls of the "U" of the lifting pallet and the fixing blocks themselves. With such a setting, the fixing blocks are designed to be detachable, making the whole device have extremely high versatility and adaptability, bringing convenience to use.

[0060] Furthermore, each end of the pressure plate has one second through-hole. The top of the screw rod passes through the second through-hole and is fixed by a lifting ring with an internal threaded hole, so as to cooperate with the lifting pallet and the pressure plate to clamp the aircraft external load in the vertical direction. The lifting ring is used for the overall lifting of the aircraft external load and the lifting and fixing device. Such a setting makes the whole device convenient for lifting and saves the time for transportation and transfer. And the lifting ring with an internal threaded hole can be finely adjusted to control the tightening degree of the pressure plate on the aircraft external load, realizing fine adjustment in the up and down directions.

[0061] Furthermore, each end of the pressure plate has one third through-hole. The first fixing rod passes upward through the third through-hole and is fixed by a nut. The third through-hole is an oblong hole. Such a setting enables fine adjustment of the lateral fixing by the position of the lifting member in the third through-hole.

[0062] Furthermore, the top of the aircraft external load has a protruding lifting lug. The pressure plate has an upwardly protruding bent section, and the bent section forms a groove with a downward opening. The groove can be matched and embedded with the lifting lug to limit its displacement in the length direction of the packing box. Such a setting enables the special lifting and fixing device and components of the aircraft external load to fix aircraft external loads of different sizes and shapes in the course direction (the length direction of the packing box). At this time, the aircraft external load can only be displaced and adjusted within the width range of the pressure plate.

[0063] Furthermore, the special lifting and fixing device for aircraft external loads further includes a limiting mechanism. The limiting mechanism includes: a plurality of adjusting bolts, which are rotatably passed through two opposite wall surfaces of the bent section along the length direction of the packing box, and the adjusting bolts on the two wall surfaces face the inner space of the groove relatively; and a limiting push block, which is fixed to the end of the adjusting bolt and is located inside the groove. By rotating the length of the adjusting bolt screwed into the wall surface of the bent section, the limiting push block can be made to abut against the lifting lug. A plurality of limiting push blocks fixed on a plurality of adjusting bolts passing through two opposite wall surfaces cooperate together to fix and limit the displacement of the lifting lug in the groove in the length direction of the packing box. Such a setting enables the special lifting and fixing device and components of the aircraft external load to clamp and fix aircraft external loads of different sizes and shapes in the course direction (the length direction of the packing box) and can be finely adjusted according to actual needs, increasing the limiting and fixing of the pressure plate on the aircraft external load and improving the overall fixing function of the device.

[0064] Furthermore, all components in the special lifting and fixing device for aircraft external loads are made of high-strength alloy steel material. Such a setting enables the whole device and components to have excellent comprehensive performance, good stability, high rigidity and strength, and improves the safety of the whole device. Moreover, the whole device can carry out mechanical simulation calculations according to actual working conditions, further ensuring the stability and safety of the device.

[0065] Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. What is described in the above-mentioned embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A special hoisting and fixing device for aircraft external stores, which is arranged in a packing box and hoists and limits the space of the aircraft external stores, is characterized in that Comprising: A lifting pallet, which is a long strip plate and is detachably fixed to the inner bottom thereof along the width direction of the packing box; Screws, two in number, are respectively vertically fixed at both ends of the lifting pallet and face the same side, and the plane formed by the screws and the lifting pallet is in the plane of the width direction of the packing box; A pressing plate, which is a long strip plate, and both ends thereof are movably and detachably connected to the ends of the two screws away from the lifting pallet. The space enclosed by the lifting pallet, the two screws and the pressing plate is used for annularly fixing and sleeving the aircraft external store; And Lifting members, two in number, are respectively arranged at both ends of the pressing plate. The lifting members are in an "L" shape. One end of the lifting member is a first fixing rod with an external thread. The first fixing rod passes through the pressing plate and is fixed by a nut. The other end of the lifting member is a second fixing rod, and the second fixing rod is inserted into a hole reserved on the packing box, so that the pressing plate is finally fixed in the packing box.

2. The special lifting and fixing device for aircraft external stores according to claim 1, wherein: Among them, The lifting pallet is a long strip plate with a "U"-shaped cross section in the width direction, and each of the "U"-shaped bottoms at both ends thereof has a first through hole; The special lifting and fixing device for aircraft external stores further comprises two fixing blocks, which are embedded and fixed in the "U"-shaped structures at both ends of the lifting pallet. The fixing blocks have fixing columns extending laterally, and the fixing columns are inserted into the holes reserved on the packing box, so that the fixing blocks and the lifting pallet fixed thereto are fixed to the inner bottom in the width direction of the packing box; The bottom of the screw vertically passes through the first through hole and is screwed and fixed to the fixing block.

3. The special lifting and fixing device for aircraft external stores according to claim 2, wherein: Among them, The first through hole is an oval hole.

4. The special lifting and fixing device for aircraft external stores according to claim 2, wherein: Among them, The fixing block is fixed in the "U"-shaped structures at both ends of the lifting pallet by a stud pin passing through the two side walls of the "U" of the lifting pallet and itself.

5. The special lifting and fixing device for aircraft external stores according to claim 1, wherein: Among them, Each end of the pressing plate has a second through hole, and the top of the screw passes through the second through hole and is fixed by a sling with an internal threaded hole, so as to clamp the aircraft external store in the vertical direction in cooperation with the lifting pallet and the pressing plate, The sling is used for the overall lifting of the aircraft external store and the lifting and fixing device.

6. The special lifting and fixing device for aircraft external stores according to claim 1, wherein: Among them, Each end of the pressing plate has a third through hole; The first fixing rod passes upward through the third through hole and is fixed by a nut; The third through hole is an oval hole.

7. The special lifting and fixing device for aircraft external stores according to claim 1, wherein: Among them, The top of the aircraft external store has a protruding lifting lug, The pressing plate has a bent section that bulges upward. The bent section forms a groove with an opening facing downward, and the groove can be matched and embedded by the lug to limit its displacement in the length direction of the packing box.

8. The special lifting and fixing device for aircraft external stores according to claim 7, wherein: Among them, The special lifting and fixing device for aircraft external stores further includes a limiting mechanism. The limiting mechanism includes: Adjusting bolts, the number of which is several. The adjusting bolts are rotatably passed through two opposite wall surfaces of the bent section along the length direction of the packing box, and the adjusting bolts on the two wall surfaces face the inner space of the groove relatively; and Limiting push blocks, fixed at the ends of the adjusting bolts and located inside the groove. By rotating the length of the adjusting bolts screwed into the wall surfaces of the bent section, the limiting push blocks can be made to abut against the lugs. A plurality of the limiting push blocks fixed on a plurality of the adjusting bolts passing through two opposite wall surfaces cooperate together to fix and limit the displacement of the lugs in the groove in the length direction of the packing box.

9. The special lifting and fixing device for aircraft external stores according to any one of claims 1 to 8, wherein: Among them, All components in the special lifting and fixing device for aircraft external stores are made of high-strength alloy steel materials.

10. A special hoisting and fixing component for aircraft external stores, characterized in that Composed of the special lifting and fixing device for aircraft external stores according to any one of claims 1 to 9, wherein the number of the special lifting and fixing devices for aircraft external stores is at least 2, A plurality of the special lifting and fixing devices for aircraft external stores sequentially sleeve and surround the aircraft external store along the length direction of the aircraft external store.

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