Transport case

Abstract

The utility model provides a transport case, which is used for storing an optical element and comprises an inner storage assembly, an outer storage assembly and an outer storage assembly, the outer supporting frame is arranged on the periphery of the inner storage assembly in a sleeving mode, and the outer supporting frame and the inner storage assembly are spaced to form a buffering cavity; the damping assembly is accommodated in the buffer cavity; the vibration reduction assembly comprises an inner supporting frame and a plurality of elastic pieces, the inner supporting frame is used for fixing the inner storage assembly, the outer supporting frame is arranged outside the inner supporting frame in a sleeving mode, and the outer supporting frame and the inner supporting frame are elastically connected through the elastic pieces; the inner storage assembly is suspended in the outer supporting frame through the vibration reduction assembly. According to the transport case, the optical elements can be protected, and the shock absorption and impact resistance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a transport box. BACKGROUND

[0002] High-precision optical elements, due to their low allowable brittle value and high value characteristics, are usually transported using special transport boxes. Common transport boxes usually use materials such as sponge pads and foam boards for buffering, but most of the transport boxes for packaging optical elements have general buffering capacity. During transportation, large vibrations and impacts generated during transportation can cause subtle changes in the structure of the optical element, which in turn can cause the key indicators of the optical element to be unqualified and unable to be used. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a transport box for storing optical elements, comprising:

[0004] An inner storage assembly for containing and fixing the optical element;

[0005] An outer support frame sleeved on the outer periphery of the inner storage assembly and spaced from the inner storage assembly to form a buffer cavity;

[0006] A damping assembly accommodated in the buffer cavity; the damping assembly comprises an inner support frame and a plurality of elastic members, the inner support frame is used to fix the inner storage assembly, the outer support frame is sleeved on the outside of the inner support frame, and the outer support frame and the inner support frame are elastically connected through the plurality of elastic members; wherein the inner storage assembly is suspended in the outer support frame through the damping assembly.

[0007] The transport box provided by the embodiment of the present application can make the external excitation of the outer support frame quickly attenuate through the plurality of elastic members when the outer support frame is excited by the external excitation, so that the vibration of the inner support frame is smaller, and the vibration of the inner storage assembly containing and fixed in the inner support frame and the optical element contained and fixed in the inner storage assembly is smaller, which is conducive to alleviating the impact such as falling of the optical element during transportation of the transport box, and further avoiding damage to the optical element.

[0008] In an embodiment, the transport box further comprises a protective shell sleeved and fixed on the outer periphery of the outer support frame, and an inner wall of the protective shell at least partially abuts against the outer support frame.

[0009] In an embodiment, the inner support frame comprises an upper plate, a lower plate and a plurality of lead screws, the upper plate and the lower plate are respectively arranged on opposite sides of the inner storage assembly, and the spacing between the upper plate and the lower plate is adjustably arranged through the plurality of lead screws so that the inner storage assembly abuts between the upper plate and the lower plate.

[0010] In an embodiment, the upper plate is provided with a plurality of first mounting holes, and the inner support frame further comprises a plurality of first mounting seats, each of which is fixed to the upper plate through at least one of the first mounting holes, and each of which is used for connecting one end of one of the elastic members, the other end of which is connected to the outer support frame; the elastic force direction of the elastic member is arranged at a preset angle with the center line of the inner storage assembly, and the inner storage assembly has movement freedom degrees in at least the direction along the center line and the direction perpendicular to the center line within the outer support frame.

[0011] In an embodiment, the lower plate is provided with a plurality of second mounting holes, and the inner support frame further comprises a plurality of second mounting seats, each of which is fixed to the lower plate through at least one of the second mounting holes; the damping assembly further comprises a plurality of dampers, one end of each of which is connected to one of the second mounting seats, and the other end of each of which is connected to the outer support frame.

[0012] In an embodiment, the outer support frame comprises a top plate, a bottom plate and a frame body, the top plate and the bottom plate are respectively arranged at opposite ends of the frame body, and the top plate is connected to the inner support frame through the elastic member.

[0013] In an embodiment, the top plate is provided with a plurality of third mounting holes, and the outer support frame further comprises a plurality of third mounting seats, each of which is fixed to the top plate through at least one of the third mounting holes, and each of which is used for connecting one end of one of the elastic members, the other end of which is connected to the inner support frame.

[0014] In an embodiment, the outer support frame further comprises a plurality of fourth mounting seats, each of which is fixed to the bottom plate; one end of each of the dampers is connected to one of the fourth mounting seats, and the other end of each of the dampers is connected to the second mounting seat.

[0015] In an embodiment, the inner storage assembly comprises a first box body and a buffer pad, the buffer pad is arranged in the first box body and is used for carrying and wrapping the optical element.

[0016] In an embodiment, the shape of the buffer pad is set to match the shape of the optical element for wrapping and fixing the optical element.

[0017] In an embodiment, the protective shell comprises a second box body and a fixing plate, the second box body is used for accommodating the outer support frame, and the fixing plate is arranged in the second box body and is used for fixing the outer support frame placed in the second box body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a schematic view of a transport case according to an embodiment of the present application.

[0019] Figure 2 Fig. 2 is a schematic view of a II-II sectional structure of the transport case according to the embodiment of the present application. Figure 1

[0020] Figure 3 Fig. 3 is a schematic view of a structure of an inner storage assembly according to the embodiment of the present application.

[0021] Figure 4 Fig. 4 is a schematic view of a IV-IV sectional structure of the transport case according to the embodiment of the present application. Figure 3

[0022] Figure 5 Fig. 5 is a schematic view of a structure of a damping assembly according to the embodiment of the present application.

[0023] Figure 6 Fig. 6 is a partial enlarged view of the transport case according to the embodiment of the present application. Figure 5

[0024] Figure 7 Fig. 7 is an exploded schematic view of an inner support frame according to the embodiment of the present application.

[0025] Figure 8 Fig. 8 is a schematic view of a connection relationship between the damping assembly and the inner storage assembly according to the embodiment of the present application.

[0026] Figure 9 Fig. 9 is a schematic view of a horizontal damping effect of the transport case according to the embodiment of the present application.

[0027] Figure 10 Fig. 10 is a schematic view of a vertical damping effect of the transport case according to the embodiment of the present application.

[0028] Main element symbol explanation

[0029] Transport case, 100; inner storage assembly, 10; first case body, 11; upper cover, 111; case body, 113; buffer pad, 13, 13a, 13b, 13c; damping assembly, 30; inner support frame, 31; upper plate, 311; handle, 3111; first mounting hole, 312; lower plate, 313; positioning portion, 3131; second mounting hole, 314; lead screw, 315; nut, 3151; first mounting seat, 317; second mounting seat, 319; outer support frame, 33; top plate, 331; third mounting hole, 332; bottom plate, 333; frame body, 335; third mounting seat, 337; fourth mounting seat, 339; buffer cavity, 34; elastic member, 35; damper, 37; protective shell, 50; second case body, 51; positioning groove, 511; fixed plate, 53; optical element, A.

[0030] The following specific embodiments will further illustrate the present application in conjunction with the above-mentioned drawings. Specific embodiments

[0031] ​​​With reference to the drawings and embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0033] In order to further clarify the technical means and effects taken by the present application to achieve the predetermined purpose, the following will be described in detail in combination with the drawings and preferred embodiments.

[0034] Please refer to Figure 1 and Figure 2 The transport box 100 provided by the embodiments of the present application includes an internal storage assembly 10, an external support frame 33, a damping assembly 30 and a protective shell 50. The internal storage assembly 10 is used to accommodate and fix the optical element A. The external support frame 33 is sleeved on the outer periphery of the internal storage assembly 10 and spaced from the internal storage assembly 10 to form a buffer cavity 34. The damping assembly 30 is accommodated in the buffer cavity 34. The protective shell 50 is used to sleeve and fix the external support frame 33.

[0035] Specifically, in the present embodiment, the structure of the transport box 100 is described by taking the optical element A as an objective lens. The optical element A can include a shell and a lens group fixed by the shell. The lens group can include only one lens, or can include multiple lenses or other optical lenses. In other embodiments, the optical element A can include only the lens group, or can include other elements, which are not limited by the present application.

[0036] In the present embodiment, the structure of the transport box 100 is described by taking one internal storage assembly 10 storing one optical element A and one damping assembly 30 accommodating and fixing one internal storage assembly 10. In other embodiments, one internal storage assembly 10 can be used to store multiple optical elements A, and one damping assembly 30 can accommodate and fix multiple internal storage assemblies 10 at the same time, which are not limited by the present application.

[0037] Please refer to Figure 3 and Figure 4 The internal storage assembly 10 includes a first box body 11 and a buffer pad 13. The buffer pad 13 is arranged in the first box body 11 and is used to bear the optical element A.

[0038] The first box body 11 comprises a cover 111 and a box body 113. The cover 111 is buckled on the box body 113 to form a closed structure. The cover 111 and the box body 113 can be buckled and fixed by a buckle, or can be connected and fixed by a hinge structure. The present application does not limit this. A handle (not shown in the figure) can be provided on the cover 111 to facilitate lifting the cover 111 when the cover 111 and the box body 113 are not buckled, or lifting the entire first box body 11 when the cover 111 and the box body 113 are buckled. The present application does not limit this.

[0039] The first box body 11 can be made of aluminum alloy material, or other fireproof material. The present application does not limit this.

[0040] The shape of the buffer pad 13 is set to match the shape of the optical element A to fix the optical element A. Specifically, in the present embodiment, the buffer pad 13 comprises a buffer pad 13a, a buffer pad 13b and a buffer pad 13c. The buffer pad 13a is fixed inside the box body 113 and is configured to match the partial shape of the optical element A, so as to fix the position of the optical element A when the optical element A is placed on the buffer pad 13a. The buffer pad 13b and the buffer pad 13c are arranged above the buffer pad 13a in the same layer and are configured to match the partial shape of the optical element A, so as to cooperate with the buffer pad 13a to completely wrap the optical element A. The buffer pad 13b and the buffer pad 13c are also configured to match the shape of the cover 111, so that when the cover 111 is buckled on the box body 113, the combination of the buffer pad 13a, the buffer pad 13b and the buffer pad 13c can exactly fill the inside of the first box body 11. The buffer pad 13b and the buffer pad 13c are detachable structures to facilitate the taking and placing of the optical element A. The buffer pad 13b and the buffer pad 13c can be provided with grooves to facilitate taking and placing from the first box body 11. In other embodiments, the buffer pad 13 can also be provided as two, four or more. The present application does not limit this, as long as it can match the shape of the optical element A to fix the optical element A in the first box body 11, it is within the scope of the present application.

[0041] The material of the cushion 13 can be ethylene vinyl acetate (EVA) foam (also known as EVA sponge). The minimum thickness of the cushion 13 (i.e. the minimum distance between the optical element A and the first box 11 when the optical element A is placed in the first box 11) can be determined according to statistical data of environmental conditions, the fragility value of the optical element A and the characteristics of the EVA sponge itself to satisfy the EVA sponge cushion coefficient-maximum stress curve. Specifically, the cushion 13 reduces the impact load by providing the optical element A with the space required to reach a state of rest during a high-speed drop process and dissipates a certain amount of impact energy to ensure that the optical element A is not damaged under possible impact conditions. In other embodiments, the cushion 13 can also be made of other materials, which are not limited in the present application.

[0042] Referring to Figure 5 In the embodiment, the damping assembly 30 includes an inner support frame 31, a plurality of elastic members 35 and a plurality of dampers 37. The inner support frame 31 is used to fix the internal storage assembly 10, and the outer support frame 33 and the inner support frame 31 are connected through the plurality of elastic members 35 and the plurality of dampers 37.

[0043] Specifically, referring to Figure 6 In the embodiment, the inner support frame 31 includes an upper plate 311, a lower plate 313 and a plurality of lead screws 315. The upper plate 311 and the lower plate 313 are respectively arranged at opposite ends of the internal storage assembly 10, and the upper plate 311 and the lower plate 313 are connected through the plurality of lead screws 315, and the spacing between the upper plate 311 and the lower plate 313 is adjustably arranged through the plurality of lead screws 315 so that the internal storage assembly 10 is abutted between the upper plate 311 and the lower plate 313. One end of the lead screw 315 is connected and fixed with the lower plate 313, and the other end includes a nut 3151. When the internal storage assembly 10 is placed on the lower plate 313, the upper plate 311 is buckled on the internal storage assembly 10, the lead screw 315 passes through the upper plate 311, and by tightening the nut 3151 from the side of the upper plate 311 away from the lower plate 313 towards the direction close to the lower plate 313, the upper plate 311 and the lower plate 313 can be abutted against the internal storage assembly 10, thereby achieving the fixation of the internal storage assembly 10. By rotating the nut 3151 away from the lower plate 313, the fixation of the internal storage assembly 10 can be released, so that the internal storage assembly 10 can be taken out from between the upper plate 311 and the lower plate 313.

[0044] The side of the upper plate 311 away from the lower plate 313 is also provided with a handle 3111, and a user can lift the upper plate 311 through the handle 3111 to take out the internal storage assembly 10 from the inner support frame 31.

[0045] The lower plate 313 is also formed with a plurality of protruding positioning portions 3131 near one side of the upper plate 311, and the plurality of positioning portions 3131 are used to limit the position of the internal storage assembly 10, so that the internal storage assembly 10 can be placed to move relative to the lower plate 313 when the internal storage assembly 10 is placed on the lower plate 313.

[0046] Please refer to Figure 2 and Figure 6 The upper plate 311 is also formed with a plurality of first mounting holes 312, and the internal support frame 31 further includes a plurality of first mounting seats 317, each of which is fixed on the upper plate 311 through one first mounting hole 312, and the first mounting seat 317 is used to connect one end of the elastic member 35, and the other end of the elastic member 35 is connected with the external support frame 33. Specifically, in this embodiment, two first mounting holes 312 correspond to one first mounting seat 317 at the same time, that is, the first mounting seat 317 is fixed on the upper plate 311 through two first mounting holes 312. The shape of the upper plate 311 is approximately annular, and one first mounting seat 317 also corresponds to at least two pairs of first mounting holes 312 arranged along the radial direction of the upper plate 311, so that the position of the first mounting seat 317 relative to the upper plate 311 can be adjusted by adjusting the first mounting holes 312 at different positions in the radial direction, thereby adjusting the distance between the first mounting seat 317 and the external support frame 33, and further changing the extension length of the elastic member 35.

[0047] In this embodiment, the number of first mounting seats 317 is four, and the four first mounting seats 317 are arranged in a positive direction on the upper plate 311, so that the four elastic members 35 connected with the first mounting seats 317 connect the internal support frame 31 and the external support frame 33 from four directions in the horizontal direction, and each elastic member 35 also connects the internal support frame 31 and the external support frame 33 in the vertical direction, so that when the internal support frame 31 moves relative to the external support frame 33 in any direction, the internal support frame 31 and the external support frame 33 will be buffered by the elastic member 35.

[0048] In this embodiment, the elastic force direction of the elastic member 35 is arranged at a preset angle with the center line of the internal storage assembly 10, and the internal storage assembly 10 has movement freedom in at least the direction along the center line and the direction perpendicular to the center line in the external support frame 33. Specifically, by arranging the elastic force direction of the elastic member 35 at a preset angle with the center line of the internal storage assembly 10, the elastic force direction of the elastic member 35 can have a component parallel to the direction of the center line and a component perpendicular to the direction of the center line, that is, the internal storage assembly 10 can move in the direction parallel to the center line and the direction perpendicular to the center line under the action of the elastic member 35, so that the internal storage assembly 10 can be acted on by the elastic member 35 in each direction.

[0049] The lower plate 313 is provided with a plurality of second mounting holes 314. The inner support frame 31 further comprises a plurality of second mounting seats 319. Each second mounting seat 319 is fixed to the lower plate 313 through a second mounting hole 314. The second mounting seat 319 is used to connect one end of the damper 37. The other end of the damper 37 is connected to the outer support frame 33. Specifically, in the embodiment, two second mounting holes 314 correspond to one second mounting seat 319 at the same time, that is, the second mounting seat 319 is fixed to the lower plate 313 through two second mounting holes 314.

[0050] In the embodiment, the number of the second mounting seats 319 is six. The six second mounting seats 319 are arranged in a regular hexagon on the lower plate 313, so that the damper 37 can quickly attenuate the vibration between the inner support frame 31 and the outer support frame 33. In other embodiments, the number of the second mounting seats 319 can also be four, five or more, which is not limited in the application.

[0051] In the embodiment, the elastic member 35 is a spring. The stiffness of the spring member 35 can be set according to actual needs. Specifically, the system mode can be constructed according to the parameters of the transport box 100 and the parameters of the optical element A. The data of the simple harmonic vibration and the random vibration are input. The response results of the system obtained by comparing different spring stiffnesses are compared, so as to obtain the spring stiffness with the best damping effect. Then, the elastic member 35 with the corresponding spring stiffness is selected.

[0052] In the embodiment, the damper 37 is a steel wire rope damper, that is, the annular steel wire rope is connected to the second mounting seat 319 and the outer support frame 33, thereby playing a damping effect. In other embodiments, the damper 37 can also be set as a spring or other damping element, which is not limited in the application.

[0053] Please refer to Figure 5 and Figure 7 The outer support frame 33 comprises a top plate 331, a bottom plate 333 and a frame body 335. The top plate 331 and the bottom plate 333 are arranged at opposite ends of the frame body 335, respectively. The top plate 331 is provided with a plurality of third mounting holes 332. The outer support frame 33 further comprises a plurality of third mounting seats 337. Each third mounting seat 337 is fixed to the top plate 331 through at least one third mounting hole 332. Each third mounting seat 337 is used to connect one end of the elastic member 35. That is, the two ends of the elastic member 35 are connected to the first mounting seat 317 and the third mounting seat 337, respectively, thereby connecting the inner support frame 31 and the outer support frame 33.

[0054] Please refer to Figure 7In the embodiment, two third mounting holes 332 correspond to one third mounting seat 337 at the same time, that is, the third mounting seat 337 is fixed on the top plate 331 through the two third mounting holes 332. The third mounting hole 332 is a waist hole, that is, the fixed position of the third mounting seat 337 on the top plate 331 can be changed along the extension direction of the third mounting hole 332, so as to adjust the distance between the third mounting seat 337 and the inner support frame 31, and further change the extension length of the elastic member 35. In other embodiments, the third mounting hole 32 can also be provided as a plurality of pairs of circular holes arranged in the direction close to or away from the inner support frame 31 at a time, and the third mounting seat 337 is corresponded through different third mounting holes 32, so as to adjust the distance between the third mounting seat 337 and the inner support frame 31.

[0055] Please refer to Figure 5 The outer support frame 33 further comprises a plurality of fourth mounting seats 339 fixed on the bottom plate 333 for connecting with the damper 37. The fourth mounting seat 339 can be formed on the bottom plate 333 by screwing, bonding, one-piece forming or the like, which is not limited in the present application.

[0056] Please refer to Figure 8 When the inner storage assembly 10 is placed on the damping assembly 30, if the damping assembly 30 is subjected to external force, the outer support frame 33 will be rapidly moved under the influence of the external force. At this time, due to the action of the elastic member 35, the inner support frame 31 will first remain in place due to inertia, and then slowly move with the outer support frame 33, and quickly eliminate the vibration between the inner support frame 31 and the outer support frame 33 under the influence of the damper 37, thereby realizing the effect of damping and reducing impact, so as to protect the optical element A placed in the inner storage assembly 10.

[0057] Please refer to Figure 2 The protective shell 50 comprises a second box body 51 and a fixing plate 53, wherein the second box body 51 is used for accommodating the damping assembly 30, and the fixing plate 53 is arranged in the second box body 51 and used for fixing the damping assembly 30 placed in the second box body 51. Specifically, the inner wall of the protective shell 50 at least partially abuts against the outer support frame 33 to fix the outer support frame 33. The second box body 51 comprises a bottom, a top cover and a side plate located between the bottom and the top cover. The fixing plate 53 is arranged on the bottom and the top cover respectively, and the shape of the fixing plate 53 matches the shape of the frame body 335, so that when the outer support frame 33 is placed in the second box body 51, the fixing plate 53 can be clamped with the frame body 335, thereby fixing the position between the outer support frame 33 and the second box body 51 by abutting. The side plate and the top cover of the second box body 51 are detachable structures, thereby facilitating the taking and placing of the outer support frame 33.

[0058] The second box body 51 can be made of spruce, larch and plywood, and the structure can refer to the 3A type wooden box in GB / T 12464-2002. The bottom of the second box body 51 can be made of larch, and the fixing plate 53 can be integrally formed with the bottom of the second box body 51 to fix the outer support frame 33. The bottom of the second box body 51 can also be provided with a positioning groove 511, so that the forklift can pass through the positioning groove 511 to lift and move the transport box 100. The side plates and the top cover of the second box body 51 can be made of spruce and plywood, so that the second box body 51 has high overall strength, good durability, certain elasticity, can withstand certain impact and vibration, and is relatively cheap.

[0059] The protective shell 50 can also include a dustproof bag, a desiccant, a transportation mark, etc. (not shown in the figure), for further protecting the stored optical element A, which is not limited in the present application.

[0060] Experimental Example One

[0061] The transport box 100 in the above embodiment was subjected to impact test. Two vibration recorders were used to collect the acceleration on the optical element A and the protective shell 50, respectively. The transport box 100 was repeatedly subjected to free fall at a height of 15 cm. The sampling frequency was set to 500 ms. The horizontal direction results are shown in Figure 9 , and the vertical direction results are shown in Figure 10 , wherein the abscissa is the sampling point number, and the ordinate is the acceleration. It can be seen from Figure 9 that the damping efficiency of the transport box 100 in the impact test reaches 90%, and it can be seen from Figure 10 that the damping efficiency of the transport box 100 in the impact test reaches 70% in the vertical direction.

[0062] Experimental Example Two

[0063] In the present experimental example, the optical element A is an objective lens, and the objective lens transportation test is performed using the transportation box 100 in the above embodiment. Before transportation, the 0 field aberration of the optical element A in the x direction and the y direction is recorded, and the optical element A is placed in the transportation box 100 for transportation (when transported, the container is used for transportation, and the actual transportation road conditions and actual transportation time are simulated), and then the optical element A is taken out, and the 0 field aberration of the optical element A in the x direction and the y direction is recorded again. Among them, in the x direction, the maximum value (Peak-to-Valley, PV) of the surface height deviation of the optical element A changes from 0.177 μm to 0.172 μm after transportation, and the root mean square value (Root Mean Square, RMS) of the surface height deviation of the optical element A changes from 0.033λ to 0.035λ after transportation. In the y direction, the PV of the optical element A changes from 0.132 μm to 0.158 μm after transportation, and the RMS of the optical element A changes from 0.028λ to 0.038λ. According to the PV change and the RMS change of the optical element A before and after transportation, it can be seen that the 0 field aberration changes little in the x direction and the y direction before and after transportation, which shows that the optical element A (objective lens) is slightly affected during transportation, which causes slight changes in aberration, but does not cause serious damage to the overall structure of the optical element A, and can meet the use requirements.

[0064] The transportation box 100 provided by the embodiment of the present application can make the inner storage assembly 10 fixed on the inner support frame 31 be subjected to multi-degree-of-freedom damping by arranging the damping assembly 30 and arranging the damping assembly 30 to include a plurality of elastic members 35 connecting the inner support frame 31 and the outer support frame 33 from different directions, so that the optical element A accommodated and fixed in the inner storage assembly 10 can be subjected to smaller vibration, which is conducive to alleviating the impact such as falling, loading and unloading, stacking and the like of the optical element A during transportation of the transportation box 100, and further avoiding damage to the optical element.

[0065] Those skilled in the art should understand that the above embodiments are only used to illustrate the present application, and are not used as a limitation on the present application, and as long as the above embodiments are appropriately changed and changed within the scope of the spirit of the present application, they fall within the scope of the present application.

Claims

1. A transport case for storing optical elements, characterized in that, The transport case comprises: an inner storage assembly for accommodating and fixing the optical element; an outer support frame sleeved on the outer periphery of the inner storage assembly and spaced from the inner storage assembly to form a buffer cavity; a damping assembly accommodated in the buffer cavity; the damping assembly comprises an inner support frame for fixing the inner storage assembly, and an outer support frame sleeved on the outer periphery of the inner support frame, and the outer support frame and the inner support frame are elastically connected by a plurality of elastic members; wherein the inner storage assembly is suspended in the outer support frame through the damping assembly.

2. The shipping case of claim 1, wherein, The transport case further comprises a protective shell sleeved on and fixed to the outer periphery of the outer support frame, and the inner wall of the protective shell at least partially abuts against the outer support frame.

3. The shipping case of claim 1, wherein, The inner support frame comprises an upper plate and a lower plate, and a plurality of lead screws; the upper plate and the lower plate are arranged on opposite sides of the inner storage assembly, respectively; the spacing between the upper plate and the lower plate is adjustable through the plurality of lead screws, so that the inner storage assembly is abutted between the upper plate and the lower plate.

4. The shipping case of claim 3, wherein, A plurality of first mounting holes are formed in the upper plate, and the inner support frame further comprises a plurality of first mounting seats; each first mounting seat is fixed to the upper plate through at least one first mounting hole; each first mounting seat is used for connecting one end of an elastic member, and the other end of the elastic member is connected to the outer support frame; the elastic force direction of the elastic member is arranged at a preset angle with respect to the center line of the inner storage assembly; the inner storage assembly has at least two degrees of freedom of movement in the outer support frame, i.e., along the center line and perpendicular to the center line.

5. The shipping case of claim 3, wherein, A plurality of second mounting holes are formed in the lower plate, and the inner support frame further comprises a plurality of second mounting seats; each second mounting seat is fixed to the lower plate through at least one second mounting hole; the damping assembly further comprises a plurality of dampers; one end of each damper is connected to one second mounting seat, and the other end of the damper is connected to the outer support frame.

6. The shipping case of claim 5, wherein, The outer support frame comprises a top plate, a bottom plate, and a frame body; the top plate and the bottom plate are arranged at opposite ends of the frame body, respectively; the top plate is connected to the inner support frame through the elastic members.

7. The shipping case of claim 6, wherein, A plurality of third mounting holes are formed in the top plate, and the outer support frame further comprises a plurality of third mounting seats; each third mounting seat is fixed to the top plate through at least one third mounting hole; each third mounting seat is connected to one end of an elastic member, and the other end of the elastic member is connected to the inner support frame.

8. The shipping case of claim 6, wherein, The outer support frame further comprises a plurality of fourth mounting seats; each fourth mounting seat is fixed to the bottom plate; one end of each damper is connected to one fourth mounting seat, and the other end of the damper is connected to the second mounting seat.

9. The shipping case of claim 1, wherein, The inner storage assembly comprises a first case and a buffer pad; the buffer pad is arranged in the first case and used for carrying and wrapping the optical element.

10. The shipping case of claim 9, wherein, The shape of the buffer pad is set to match the shape of the optical element to wrap and fix the optical element.

11. The shipping case of claim 2, wherein, The protective housing comprises a second box body accommodating the outer support frame and a fixing plate arranged in the second box body and fixedly placed in the outer support frame accommodated in the second box body.

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