Large-diameter packaging box

Abstract

The utility model provides a large-caliber packaging box, and belongs to the field of sealed packaging. The technical problem to be solved is to provide the large-caliber packaging box which is convenient to disassemble and assemble and good in sealing effect. According to the technical scheme, the packaging box comprises a packaging box body, the packaging box body comprises a first box body and a second box body, a first sealing device and a plurality of second sealing devices are arranged at the joint of the first box body and the second box body, the first sealing device comprises a plurality of first spigots and a plurality of second spigots, the first spigots are formed in the first box body, and the second spigots are formed in the second box body. The second spigot is arranged on the second box body, the first spigot is matched with the second sealing ring arranged on the second box body, and the first sealing ring arranged on the first box body is tightly matched with the second end face of the second box body; the second seam allowance is in close fit with the first end face of the first box body, the second sealing device comprises a positioning mechanism and a fastening mechanism, and the first box body is further provided with an auxiliary jacking mechanism; the packaging box sealing device is applied to packaging box sealing.

Description

Technical Field

[0001] The utility model provides a large-diameter packing box, belonging to the technical field of sealed packaging. Background Art

[0002] At present, with the development of torpedo technology, the diameter of torpedoes is constantly increasing, resulting in an increase in the diameter of the packing boxes for sealed torpedoes. Torpedo packing boxes are mostly made of metal or high-strength composite materials. Although these materials have excellent load-bearing capacity and corrosion resistance, when facing the processing requirements of large diameter and high strength at the processing interface, the mechanical processing difficulty increases significantly. Under the same processing accuracy, the processing error of large diameter and high strength is relatively large. However, the packing boxes of torpedoes have high requirements for sealing and dimensional errors. When the dimensional error of the processed sealed interface is relatively large, the interface will have the effect of seal failure. Moreover, currently, a single-layer sealing ring is generally used, and the large-diameter sealing ring is prone to seal failure during use. When using a failed seal, it may cause the inside of the torpedo to be damp and the internal circuit board to fail, resulting in the failure of the torpedo. This situation is a serious accident during war. Therefore, there is an urgent need in the current market for a large-diameter sealed packing box that can not only reduce the processing accuracy requirements but also ensure excellent sealing effects. This new type of large-diameter sealed packing box needs to have high adaptability, be able to effectively solve the sealing problems faced during the processing, assembly, and use of large-diameter packing boxes, ensure the stable combat ability of torpedoes in the complex and changeable marine environment, and provide a solid guarantee for coastal defense security. Summary of the Utility Model

[0003] In order to solve the technical problem of poor airtightness of large-diameter packing boxes, the utility model proposes a large-diameter packing box that is easy to disassemble, install, and has a good sealing effect, aiming to improve the sealing effect of large-diameter packing boxes by improving the hardware structure of large-diameter packing boxes.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a large-diameter packing box, including a packing box body, the packing box body includes a first box body and a second box body, and a first sealing device and a plurality of second sealing devices are arranged at the joint of the first box body and the second box body;

[0005] The first sealing device includes a plurality of first rabbets and second rabbets, the first rabbets are arranged on the first box body, and the second rabbets are arranged on the second box body;

[0006] The first rabbet cooperates with a second sealing ring arranged on the second box body; the first sealing ring arranged on the first box body is in close fit with the second end face of the second box body; the second rabbet is in close fit with the first end face of the first box body;

[0007] The second sealing device includes a positioning mechanism and a fastening mechanism;

[0008] The fastening mechanism is detachably connected between the first box body and the second box body. The fastening mechanism includes a fastener, and the fastener tightly engages the first box body and the second box body through a fixing device;

[0009] An auxiliary jacking mechanism is further provided on the first box body, and the auxiliary jacking mechanism passes through the first box body and then cooperates with the second box body.

[0010] Furthermore, the cross-section of the first sealing ring is in a groove shape, and the cross-section of the second sealing ring is in a convex structure.

[0011] Furthermore, the cross-sectional area of the second sealing ring is larger than the cross-sectional area of the first rabbet.

[0012] Furthermore, the auxiliary jacking mechanism and the positioning mechanism are symmetrically arranged with respect to the fastening mechanism.

[0013] Furthermore, the auxiliary jacking mechanism is a lifting bolt.

[0014] Furthermore, the positioning mechanism includes a positioning pin. The positioning pin sequentially passes through the second box body and the first box body, and the positioning mechanism tightly engages the first box body and the second box body through a positioning nut.

[0015] Furthermore, the fastener is fixedly connected to the first box body through a limiting device. The limiting device includes a limiting bolt and a limiting nut, and the limiting bolt and the limiting nut are adapted to each other.

[0016] Furthermore, a cushion block is further arranged between the fixing device and the second box body.

[0017] Furthermore, the fastener is a toggle bolt or a tool buckle mechanism.

[0018] Furthermore, the fixing device is a fastening nut.

[0019] The beneficial effects of the present utility model compared with the prior art are as follows:

[0020] 1. The first sealing device of the present utility model is located inside the packaging box body. The mutual cooperation of the first rabbet, the second rabbet, the first sealing ring and the second sealing ring makes the first box body and the second box body tightly cooperate. The second sealing devices of the present utility model are evenly distributed on the outer side of the packaging box body and cooperate with the first sealing device, which can increase the radial force and axial force borne by the packaging box body;

[0021] 2. The setting of the positioning mechanism of the present utility model can quickly align the first box body and the second box body to achieve rapid assembly; the auxiliary jacking mechanism of the present utility model can achieve easy and rapid disassembly of the packaging box body;

[0022] 3. The radial assembly structure of the first box body and the second box body of the present utility model can increase the effective working surfaces of the first sealing ring and the second sealing ring, effectively improve the airtightness of the packing box body, and avoid air leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present utility model will be further described below in conjunction with the drawings:

[0024] Figure 1 It is the front view of the packing box body with a frame structure in cross-section of the present utility model;

[0025] Figure 2 It is the side view of the packing box body with a frame structure in cross-section of the present utility model Figure 1 ;

[0026] Figure 3 It is the front view of the packing box body with an annular structure in cross-section of the present utility model;

[0027] Figure 4 It is the structural schematic diagram of the packing box body with an annular structure in cross-section of the present utility model;

[0028] Figure 5 It is Figure 1 the enlarged view of part A in

[0029] Figure 6 It is Figure 3 the enlarged view of part B in

[0030] Figure 7 It is the structural schematic diagram of the second sealing device and the auxiliary jacking mechanism of the present utility model;

[0031] Figure 8 It is the structural schematic diagram of the first sealing device of the present utility model;

[0032] Figure 9 It is the side view of the packing box body with a frame structure in cross-section of the present utility model Figure 2 ;

[0033] In the figure: 1 is the second box body, 2 is the first box body, 3 is the first sealing ring, 4 is the second sealing ring, 5 is the first rabbet, 6 is the second rabbet, 7 is the first end face, 8 is the second end face, 10 is the positioning mechanism, 11 is the swivel bolt seat, 12 is the limit nut, 13 is the limit bolt, 14 is the spacer, 15 is the fixing device, 16 is the auxiliary jacking mechanism, 17 is the positioning pin, 18 is the positioning nut, 19 is the fastening mechanism, 20 is the base, 21 is the buckle, 22 is the clamping device, 23 is the fastener. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In the present utility model, unless otherwise specified, the orientation terms such as "upper, lower, top, bottom" usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravitational directions of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refer to the inner and outer of the contours of the respective components themselves, but the above orientation terms are not used to limit the present utility model.

[0035] As Figures 1 to 9 shown, the present utility model provides a large-diameter packing box, which includes a packing box body. The cross-section of the packing box body is an annular structure or a frame structure. The packing box body includes a first box body 2 and a second box body 1. A first sealing device and a plurality of second sealing devices are arranged at the joint of the first box body 2 and the second box body 1. The plurality of second sealing devices are evenly arranged along the circumferential direction where the first box body 2 and the second box body 1 are joined. The first sealing device includes a plurality of first rabbets 5 and second rabbets 6. The first rabbets 5 are fixedly welded to the first box body 2, and the second rabbets 6 are fixedly welded to the second box body 1; the first rabbets 5 cooperate with the second sealing rings 4 fixed on the second box body 1; the second rabbets 6 are in close fit with the first end face 7 of the first box body 2; the second end face 8 of the second box body 1 is in close fit with the first sealing ring 3 fixed inside the first box body 2.

[0036] In this embodiment, one first rabbet 5 and one second rabbet 6 are provided. The first rabbet 5 is located inside the first box body 2, and the second rabbet 6 is located inside the second box body 1. Both the first rabbet 5 and the second rabbet 6 are of steel ring structure. The area enclosed by the first rabbet 5 is larger than the area enclosed by the second rabbet 6. The first rabbet 5 and the second rabbet 6 are coaxially arranged. The mating surface of the first rabbet 5 is chamfered, and the mating surface of the second rabbet 6 is chamfered. When assembling the first box body 2 and the second box body 1, the mating surfaces of the first rabbet 5 and the second rabbet 6 cooperate with each other, which can ensure the coaxiality of the first box body 2 and the second box body 1. The mutual cooperation of the first rabbet 5 and the second rabbet 6 can resist the radial load intensity generated by the mutual extrusion of the first box body 2 and the second box body 1 at the joint. When the cross-section of the packing box body is an annular structure, the areas enclosed by the first rabbet 5 and the second rabbet 6 are both circular, and the first rabbet 5 and the second rabbet 6 are concentric circle structures; when the cross-section of the packing box body is a frame structure, the areas enclosed by the first rabbet 5 and the second rabbet 6 are both square, and the center points of the first rabbet 5 and the second rabbet 6 coincide.

[0037] The cross-section of the first sealing ring 3 is in the shape of a groove. When the second box body 1 and the first box body 2 are joined together, the first sealing ring 3 is squeezed, and the air in the groove is discharged, so that the first box body 2 and the second box body 1 are tightly combined, and the cavity formed by the first box body 2 and the second box body 1 forms a sealing effect. In this embodiment, the radius of the first sealing ring 3 is 50 mm, the width is 10 mm, and the atmospheric pressure is 1.01 Mpa. When the groove of the first sealing ring 3 is in a vacuum state, its axial force can withstand 1570 N, and the radial force can withstand approximately 392 N. When the sealing effect fails, it is necessary to first break the vacuum state in the groove of the first sealing ring 3. Therefore, only in extremely accidental cases will the second sealing device for fixing the first box body 2 and the second box body 1 completely fail, and the force that breaks the seal between the first box body 2 and the second box body 1 must be greater than the maximum axial force that the first sealing ring 3 of this application can withstand to cause the cavity seal to fail. The radial force that the first sealing ring 3 can withstand can prevent the axes of the first box body 2 and the second box body 1 from shifting, and can still ensure that the first box body 2 and the second box body 1 are in a coaxial state after the positioning pin 17, the first stop 5, and the second stop 6 all fail.

[0038] The cross-section of the second sealing ring 4 is in a convex structure, and the cross-sectional area of the second sealing ring 4 is larger than the cross-sectional area of the first stop 5. When the first box body 2 and the second box body 1 are tightly joined, the second sealing ring 4 and the first stop 5 cooperate with each other. After the second sealing ring 4 is squeezed by the first stop 5, the extruded part of the second sealing ring 4 will be discharged along the circumferential direction of the first stop 5, that is, it will be extruded towards the center direction of the first stop 5 and away from the center direction of the first stop 5. On the one hand, it can strengthen the sealing strength between the first stop 5 and the second stop 6, increase the effective sealing area of the contact surface between the first box body 2 and the second box body 1, thereby strengthening the sealing effect; on the other hand, the first stop 5 is embedded in the second sealing ring 4, increasing the contact area between the first stop 5 and the second sealing ring 4 and enhancing the sealing effect.

[0039] The second sealing device includes a positioning mechanism 10 and a fastening mechanism 19. The positioning mechanism 10 includes a positioning pin 17. The positioning pin 17 sequentially penetrates through the second box body 1 and the first box body 2, and the positioning mechanism 10 tightly joins the first box body 2 and the second box body 1 through a positioning nut 18. The positioning structure can play a positioning role in the process of assembling the first box body 2 and the second box body 1. One end of the positioning pin 17 is a conical structure, which is convenient for the positioning hole on the second box body 1 to cooperate with the positioning pin 17 during assembly. The other end of the positioning pin 17 is fixedly connected to the second box body 1 through the positioning nut 18. The positioning pin 17 and the positioning nut 18 are in interference fit, and the positioning pin 17 and the positioning holes on the first box body 2 and the second box body 1 are in interference fit to prevent the positioning pin 17 from falling due to loosening after the assembly is completed.

[0040] The first box body 2 and the second box body 1 are detachably connected through a fastening mechanism 19. The fastening mechanism 19 includes a fastener 23. The fastener 23 tightly engages the first box body 2 and the second box body 1 through a fixing device 15. The fastener 23 is a swivel bolt or a tool buckle mechanism. When the fastener 23 is a swivel bolt, the swivel bolt sequentially passes through the first box body 2 and the second box body 1. One end of the swivel bolt is fixedly connected to the first box body 2 through a limiting device, and the other end of the swivel bolt is fixed to the second box body 1 through the fixing device 15. A spacer 14 is also provided between the fixing device 15 and the second box body 1 for dispersing the pressure borne by the fastener 23. When in use, the pressure applied to the fastener 23 can be adjusted by adjusting the fixing device 15. When it is necessary to disassemble the first box body 2 and the second box body 1, the fixing device 15 is adjusted so that the fastener 23 can act along the axis of the limiting device, thereby performing disassembly. In this embodiment, the fixing device 15 is a fastening nut, and the limiting device includes a swivel bolt seat 11, a limiting bolt 13, and a limiting nut 12, and the swivel bolt seat 11, the limiting bolt 13, and the limiting nut 12 are adapted to each other. When the fastener 23 is a tool buckle mechanism, as Figure 9 shown, the tool buckle mechanism includes a buckle 21. One end of the buckle 21 is movably connected to a base 20. The base 20 is fixedly connected to the first box body 2 through a bolt. The other end of the buckle 21 is detachably connected to a clamping device 22. The clamping device 22 is fixedly connected to the second box body 1.

[0041] During disassembly, due to the action of the sealing device, it is more difficult to separate the first box body 2 and the second box body 1. Therefore, an auxiliary jacking mechanism 16 is also provided on the first box body 2. The auxiliary jacking mechanism 16 and the positioning mechanism 10 are symmetrically arranged with respect to the fastening mechanism 19. The auxiliary jacking mechanism 16 passes through the first box body 2 and then cooperates with the second box body 1, which is convenient for disassembling the first box body 2 and the second box body 1. The auxiliary jacking mechanism 16 in this embodiment is a lifting bolt, and the lifting bolt cooperates with the first box body 2. When it is necessary to separate the first box body 2 and the second box body 1, only the lifting bolt needs to be rotated so that the lifting bolt cooperates with the second box body 1 to jack up the second box body 1, thereby separating the first box body 2 and the second box body 1.

[0042] In this embodiment, six fastening mechanisms 19 are provided to ensure that the fastening force can be evenly dispersed to the joint of the first box body 2 and the second box body 1. In this embodiment, two positioning mechanisms 10 and two auxiliary jacking mechanisms 16 are provided to enhance the positioning and lifting efficiency.

[0043] When the cross-section of the packing box body is a frame structure, the first box body 2 and the second box body 1 are radially assembled. This assembly method can effectively increase the contact area between the first box body 2 and the second box body 1. Furthermore, more fastening mechanisms 19 can be provided to increase the airtightness of the packing box body. Compared with the axial installation assembly method, the first sealing ring 3 and the second sealing ring 4 do not need to be customized according to the cross-sectional shapes of the first box body 2 and the second box body 1, and the effective working areas of the first sealing ring 3 and the second sealing ring 4 will increase significantly.

[0044] The fastening mechanism 19 connecting the first box body 2 and the second box body 1 can only bear relatively small radial forces. Therefore, mainly the positioning mechanism 10 and the second sealing ring 4 can bear radial forces at the connection between the first box body 2 and the second box body 1. If the packing box body suddenly receives a large radial load, it is not sufficient to ensure the sealing of the packing box body. The mutual cooperation of the first spigot 5 and the second spigot 6 can further increase the radial load strength at the mating part of the first box body 2 and the second box body 1. When the packing box body receives a large radial force, the mutually cooperating first spigot 5 and second spigot 6 will resist the radial force due to the mutual extrusion of the tube walls of the first box body 2 and the second box body 1.

[0045] The same symbol can be marked on each pair of mutually cooperating first box body 2 and second box body 1 to achieve rapid assembly.

[0046] Regarding the specific structure of the present utility model, it should be noted that the connection relationships between the various component modules adopted by the present utility model are determined and achievable. Except for the special descriptions in the embodiments, the specific connection relationships can bring corresponding technical effects, and on the premise of not relying on the execution of corresponding software programs, the technical problems proposed by the present utility model can be solved. The models of the components, modules, and specific components, the connection methods between each other, and the conventional usage methods and predictable technical effects brought by the above technical features, except for the specific descriptions, all belong to the publicly disclosed content in patents, journal papers, technical manuals, technical dictionaries, and textbooks that those skilled in the art can obtain before the filing date, or belong to the prior art such as conventional technologies and common general knowledge in the art, and do not need to be elaborated. This makes the technical solution provided in this case clear, complete, and achievable, and can reproduce or obtain the corresponding physical product according to this technical means.

[0047] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A large-caliber packaging box, characterized in that: The packaging box comprises a packaging box body, wherein the packaging box body comprises a first box body (2) and a second box body (1), and a first sealing device and a plurality of second sealing devices are provided at the joint between the first box body (2) and the second box body (1); The first sealing device comprises a plurality of first stoppers (5) and second stoppers (6), wherein the first stoppers (5) are arranged on the first box body (2), and the second stoppers (6) are arranged on the second box body (1); The first stop (5) cooperates with a second sealing ring (4) provided on the second box body (1); the first sealing ring (3) provided on the first box body (2) cooperates closely with a second end surface (8) of the second box body (1); the second stop (6) cooperates closely with a first end surface (7) of the first box body (2); The second sealing device comprises a positioning mechanism (10) and a fastening mechanism (19); The fastening mechanism (19) is detachably connected between the first box body (2) and the second box body (1), and the fastening mechanism (19) comprises a fastener (23), and the fastener (23) tightly joins the first box body (2) and the second box body (1) via a fixing device (15); The first box body (2) is also provided with an auxiliary lifting mechanism (16), which penetrates the first box body (2) and then cooperates with the second box body (1).

2. A large-caliber packaging box according to claim 1, characterized in that: The cross section of the first sealing ring (3) is a groove-shaped structure, and the cross section of the second sealing ring (4) is a convex-shaped structure.

3. A large-diameter packaging box according to claim 1, characterized in that: The cross-sectional area of ​​the second sealing ring (4) is greater than the cross-sectional area of ​​the first stop (5).

4. A large-caliber packaging box according to claim 1, characterized in that: The auxiliary lifting mechanism (16) and the positioning mechanism (10) are symmetrically arranged with respect to the fastening mechanism (19).

5. A large-caliber packaging box according to claim 1, characterized in that: The auxiliary lifting mechanism (16) is a lifting bolt.

6. A large-caliber packaging box according to claim 1, characterized in that: The positioning mechanism (10) comprises a positioning pin (17), wherein the positioning pin (17) sequentially passes through the second box body (1) and the first box body (2), and the positioning mechanism (10) tightly connects the first box body (2) and the second box body (1) via a positioning nut (18).

7. A large-caliber packaging box according to claim 1, characterized in that: The fastener (23) is fixedly connected to the first box body (2) via a limiting device, wherein the limiting device comprises a limiting bolt (13) and a limiting nut (12), and the limiting bolt (13) and the limiting nut (12) are matched.

8. The large-diameter packaging box according to claim 1, characterized in that: A cushion block (14) is also provided between the fixing device (15) and the second box body (1).

9. A large-caliber packaging box according to claim 1, characterized in that: The fastener (23) is a hinge bolt or a tool buckle mechanism.

10. A large-caliber packaging box according to claim 1, characterized in that: The fixing device (15) is a fastening nut.

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