Container transportation tool and low-temperature container

Abstract

The container transportation tool comprises a connecting rod and a supporting assembly, the connecting rod comprises a first connecting end and a second connecting end, the connecting rod is used for being inserted into the container, the first connecting end is used for being detachably connected with the bottom of the container, and the second connecting end is used for being fixedly connected with an opening of the container; the supporting assembly is arranged between the first connecting end and the second connecting end, arranged on the connecting rod in a sleeving mode and used for supporting the inner wall of the container. Through the scheme, the rigidity of the low-temperature container can be improved, and the damage probability of the low-temperature container is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of low-temperature containers, in particular to a container transportation tool and a low-temperature container. BACKGROUND

[0002] A low-temperature container stores a medium at a very low temperature, and the latent heat of vaporization is low. In order to reduce the loss of cold energy in the storage process and cause the medium to evaporate, the heat leakage of the low-temperature container needs to be reduced. The heat leakage of the low-temperature container mainly consists of three parts, namely, heat conduction leakage, radiation leakage and convection leakage.

[0003] The prior art reduces the radiation leakage and the convection leakage of the low-temperature container by arranging a double-layer structure and arranging high-vacuum structures and heat insulation materials between the two layers of the shell. The prior art also reduces the heat conduction leakage of the low-temperature container by arranging a connecting pipe between the double-layer structure to realize the exchange between the inside and the outside of the container and reduce the contact area of the double-layer structure.

[0004] However, the prior art is prone to cause damage to the connecting pipe itself and the connecting position of the connecting pipe. CONTENT OF THE UTILITY MODEL

[0005] The application mainly solves the technical problem of providing a container transportation tool and a low-temperature container to improve the rigidity of the low-temperature container and reduce the probability of damage to the low-temperature container.

[0006] To solve the above technical problem, one technical scheme adopted by the application is to provide a container transportation tool, which comprises a connecting rod and a support assembly. The connecting rod comprises a first connecting end and a second connecting end. The connecting rod is arranged in the container. The first connecting end is arranged to be detachably connected with the bottom of the container. The second connecting end is arranged to be fixedly connected with the opening of the container. The support assembly is arranged between the first connecting end and the second connecting end and is sleeved on the connecting rod to support the inner wall of the container.

[0007] Preferably, the support assembly comprises a first support member and a second support member. The first support member is sleeved on the connecting rod and is fixedly connected with the connecting rod. The second support member is sleeved on the connecting rod and is movably connected with the connecting rod. The first support member is arranged to support the second support member when the connecting rod is in the vertical direction. The second support member is arranged to support the inner wall of the container.

[0008] Preferably, the number of the support assemblies is multiple. The multiple support assemblies are arranged at intervals along the extension direction of the connecting rod.

[0009] Preferably, the outer diameter of the first support member is smaller than the outer diameter of the second support member.

[0010] Preferably, the first connecting end is provided with a thread; the second connecting end is fixedly connected with a tightening member, a normal projection of the tightening member on the end face is a regular polygon, and the tightening member is used for limiting a tightening tool in the circumferential direction.

[0011] Preferably, the second connecting end is further provided with a transfer lifting ring.

[0012] Another technical scheme adopted in the application is to provide a low-temperature container, which comprises an inner container, an outer shell, a connecting pipe, an end cover and the container transportation tool described in any one of the embodiments, the inner container is provided with a containing space; the outer shell is sleeved outside the inner container and forms a vacuum cavity with the inner container; a first end of the connecting pipe is in communication with the containing space, and a second end of the connecting pipe extends to the outside of the low-temperature container; the end cover covers the second end of the connecting pipe, and a through hole is arranged on the end cover; the container transportation tool is inserted into the connecting pipe and extends into the containing space, the first connecting end is detachably connected with the inner container, the second connecting end passes through the end cover through the through hole and is fixedly connected with the end cover, and the support assembly supports the inner wall of the connecting pipe.

[0013] Preferably, the connecting pipe comprises a first connecting sub-pipe and a second connecting sub-pipe, the first connecting sub-pipe is arranged outside the inner container and has one end in communication with the containing space and the other end extending to the outside of the outer shell; the second connecting sub-pipe is sleeved outside the first connecting sub-pipe extending to the outside of the outer shell and connected with the outer shell, wherein the end cover covers the end of the second connecting sub-pipe.

[0014] Preferably, the inner wall of the inner container is provided with a positioning nut at the bottom, and the first connecting end is threadedly connected with the positioning nut.

[0015] Preferably, the gap between the support assembly and the inner wall of the connecting pipe is 0-2mm.

[0016] The beneficial effects of the application are that, different from the prior art, the container transportation tool provided by the application can be inserted into the connecting pipe and the inner container of the low-temperature container, the transportation tool is fixedly connected with the container as a whole through the connecting rod, the rigidity of the container as a whole is increased, the probability of damage to the container is reduced, the support assembly is supported on the inner wall of the connecting pipe of the container, the cross-sectional area of the connecting pipe is increased, the moment of inertia of the connecting pipe is increased, the ability of the connecting pipe to resist bending is improved, the connecting strength of the two ends of the connecting pipe with the outer shell and the inner container is increased, the probability of damage to the connecting pipe is reduced, and the integrity of the structure of the container during transportation and movement is ensured. The low-temperature container provided with the container transportation tool has higher rigidity and is less likely to be damaged during movement. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1is a structural schematic diagram of an embodiment of a low-temperature container in the prior art;

[0018] Figure 2 is a structural schematic diagram of an embodiment of a container transportation tool in the present application;

[0019] Figure 3 is a structural schematic diagram of an embodiment of a low-temperature container in the present application. DETAILED DESCRIPTION

[0020] For the purpose, technical solutions and effects of the present application to be clearer, more explicit, the present application is further described in detail below with reference to the drawings and examples. Obviously, the described examples are only a part of the examples of the present application, rather than all the examples. Based on the examples in the present application, all other examples obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0021] Reference Figure 1 , Figure 1 is a structural schematic diagram of an embodiment of a low-temperature container in the prior art. The low-temperature container 10 includes an inner container 1, an outer shell 2, a connecting pipe 3 and an end cover 4. The inner container 1 is a Dewar inner container 1, which is provided with a containing space 101 for containing low-temperature liquid such as liquid nitrogen, liquid helium and the like. The outer shell 2 is also a Dewar outer shell 2, which is sleeved outside the inner container 1, and a cavity is formed between the outer shell 2 and the inner container 1. The cavity forms a vacuum cavity 102 by vacuumizing, and the top of the outer shell 2 is provided with an opening 21. The first end of the connecting pipe 3 communicates with the containing space 101, and the second end of the connecting pipe 3 extends to the outside of the low-temperature container 10; the end cover 4 covers the second end of the connecting pipe 3. Optionally, the connecting pipe 3 includes a first connecting sub-pipe 31 and a second connecting sub-pipe 32. The bottom end of the second connecting sub-pipe 32 is connected with the opening 21 of the outer shell 2, and the top end of the second connecting sub-pipe 32 extends to the outside of the outer shell 2. The first connecting sub-pipe 31, which can also be referred to as a neck pipe, is arranged in the vacuum cavity 102. The bottom end of the first connecting sub-pipe 31 communicates with the containing space 101, and the other end extends to the outside of the opening 21 and is inserted into the second connecting sub-pipe 32. The end cover 4 covers the end of the second connecting sub-pipe 32 away from the outer shell 2. Specifically, the end of the second connecting sub-pipe 32 away from the outer shell 2 can be provided with a flange 321, and the end cover 4 is sealingly connected with the flange 321.

[0022] When the above container structure is transported, on the one hand, the inner container 1 exerts a strong force on the connecting part of the neck pipe, and the self-weight of the container is large, so that the stress borne by the neck pipe is large; on the other hand, in order to reduce heat leakage, the wall thickness of the neck pipe is generally thin, and the moment of inertia thereof is small, so that the neck pipe itself, the connecting end at the top of the neck pipe and the connecting end at the bottom of the neck pipe are prone to damage under the action of external force.

[0023] In view of this, the present application provides a container transportation tool to solve the above problems. ReferenceFigure 2 , Figure 2 is a structural schematic diagram of an embodiment of the container transportation tool of the present application. The container transportation tool 5 comprises a connecting rod 51 and a support assembly 52, the connecting rod 51 comprises a first connecting end 511 and a second connecting end 512, the connecting rod 51 is used to be inserted into the container, the first connecting end 511 is used to be detachably connected with the bottom of the container, and the second connecting end 512 is used to be fixedly connected with the opening 21 of the container. Specifically, the material of the connecting rod 51 can be stainless steel, and the connecting rod 51 can be a solid rod structure or a tubular structure. The first connecting end 511 can be the bottom end of the connecting rod 51, which is inserted into the container and connected with the bottom of the container, and the second connecting end 512 can be the top end of the connecting rod 51, which extends to the top opening 21 of the container and is connected with the opening 21. The support assembly 52 is arranged between the first connecting end 511 and the second connecting end 512, and the support assembly 52 is sleeved on the connecting rod 51, which is used to support the inner wall of the container. Specifically, the support assembly 52 is used to support the connecting pipe 3 of the container, and specifically can support the inner wall of the first connecting sub-pipe 31.

[0024] The container transportation tool 5 provided by the present application can be inserted into the connecting pipe 3 and the inner container 1 of the low-temperature container 10. The transportation tool is fixed as a whole with the container through the connecting rod 51, which can increase the overall rigidity of the container and reduce the probability of damage to the container. At the same time, since the support assembly 52 is supported on the inner wall of the connecting pipe 3 of the container, the cross-sectional area of the connecting pipe 3 is increased, so that the moment of inertia of the connecting pipe 3 is increased, the ability of the connecting pipe 3 to resist bending is improved, the connection strength of the two ends of the connecting pipe 3 with the outer shell 2 and the inner container 1 is increased, the probability of damage to the connecting pipe 3 is reduced, and the integrity of the container structure during transportation and movement is ensured.

[0025] Optionally, the support assembly 52 comprises a first support 521 and a second support 522, the first support 521 is sleeved on the connecting rod 51 and fixedly connected with the connecting rod 51, and the second support 522 is sleeved on the connecting rod 51 and movably connected with the connecting rod 51; wherein the first support 521 is used for supporting the second support 522 when the connecting rod 51 is in the vertical direction, and the second support 522 is used for supporting the inner wall of the container. Specifically, the first support 521 can be a circular ring-shaped sheet structure, the plane of the first support 521 is perpendicular to the extension direction of the connecting rod 51, the material of the first support 521 can be stainless steel, the inner wall of the first support 521 is welded with the outer wall of the connecting rod 51 as a whole, which has high strength, and the first support 521 is used for supporting the second support 522 thereon. The second support 522 can be a circular ring structure with a thickness much greater than that of the first support 521, and the outer diameter of the second support 522 is greater than that of the first support 521, so that the second support 522 is supported on the inner wall of the connecting pipe 3, and the outer wall of the first support 521 is spaced apart from the inner wall of the connecting pipe 3. The material of the second support 522 can be rubber or flexible plastic, so as to avoid damage to the container by the support assembly 52 during insertion, removal of the transportation tool, and transportation of the container.

[0026] Optionally, the number of support assemblies 52 is multiple, and the multiple support assemblies 52 are spaced apart along the extension direction of the connecting rod 51. The multiple support assemblies 52 are arranged corresponding to the connecting pipe 3, and the multiple support assemblies 52 are uniformly distributed. The support assembly 52 can be installed by the following method: first, a first support 521 is sleeved outside the connecting rod 51, and then the first support 521 is welded with the connecting rod 51, then a second support 522 is sleeved outside the connecting rod 51 and abuts against the first support 521 to form a group of support assemblies 52, and then the next group of support assemblies 52 is installed.

[0027] Optionally, the outer periphery of the first connecting end 511 is provided with threads; the second connecting end 512 is fixedly connected with a tightening member 53, the orthogonal projection of the tightening member 53 on the end face is a regular polygon, and the tightening member 53 is used for limiting the tightening tool in the circumferential direction. The first connecting end 511 is a screw rod, which is used for threadedly connecting with the bottom of the container, and the connecting rod 51 is connected and disassembled with the container by forward rotation and reverse rotation. Specifically, the second connecting end 512 exposed to the container can be rotated by the tightening tool, so as to realize the rotation of the connecting rod 51. The tightening tool, such as a wrench, can clamp the tightening member 53 protruding on the second connecting end 512 to drive the connecting rod 51 to rotate. The shape of the tightening member 53 can be a regular hexagonal boss structure.

[0028] Optionally, the second connecting end 512 is further provided with a transfer lifting ring 54. The transfer lifting ring 54 can be welded on the top end face of the connecting rod 51, and a lifting hook or other transfer equipment can hook the transfer lifting ring 54 to hoist and carry the transportation tool.

[0029] Referring to Figure 3 , Figure 3 is a structural schematic diagram of an embodiment of the low-temperature container 10 of the present application, Figure 3 In addition to the low-temperature container 10 shown in Figure 1 , the container transportation tool 5 described in the embodiment is further provided, and the end cover 4 of the low-temperature container 10 is provided with a through hole 41. The container transportation tool 5 is inserted into the connecting pipe 3 through the through hole 41 and extends into the accommodation space 101, the first connecting end 511 is detachably connected with the inner container 1, the second connecting end 512 passes through the end cover 4 through the through hole 41 and is fixedly connected with the end cover 4, and the support assembly 52 supports the inner wall of the connecting pipe 3. The gap between the support assembly 52 and the inner wall of the connecting pipe 3 is 0-2 mm, specifically, the gap between the second support 522 and the inner wall of the first connecting sub-pipe 31 is 0-2 mm, for example, which can be 0.5 mm, 1 mm, etc.

[0030] The bottom end of the connecting rod 51 of the container transportation tool 5 is connected with the inner container 1, and the top end of the connecting rod 51 is connected with the connecting pipe 3, so that the low-temperature container 10 and the container transportation tool 5 are fixed as a whole, thereby improving the rigidity of the low-temperature container 10 as a whole. At the same time, the container transportation tool 5 is supported on the inner wall of the connecting pipe 3, which reduces the probability of deformation of the connecting pipe 3 during transportation and avoids damage to the structure.

[0031] Optionally, the inner wall of the bottom center of the inner container 1 is provided with a positioning nut 11, and the first connecting end 511 is threadedly connected with the positioning nut 11. The detachable connection is realized through the threaded connection between the positioning nut 11 and the screw rod. In other embodiments, the first connecting end 511 can also be clamped with the bottom wall of the inner container 1, etc.

[0032] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A container transport tool, characterized in that, The container transportation tool comprises: a connecting rod comprising a first connecting end and a second connecting end, the connecting rod being arranged to be inserted into a container, the first connecting end being arranged to be detachably connected to a bottom of the container, and the second connecting end being arranged to be fixedly connected to an opening of the container; a support assembly arranged between the first connecting end and the second connecting end, and the support assembly being sleeved on the connecting rod, and being arranged to support an inner wall of the container.

2. The container transportation tool according to claim 1, wherein the support assembly comprises a first support member and a second support member, the first support member being sleeved on the connecting rod and being fixedly connected to the connecting rod, and the second support member being sleeved on the connecting rod and being movably connected to the connecting rod; wherein the first support member is arranged to support the second support member when the connecting rod is in a vertical state, and the second support member is arranged to support the inner wall of the container.

3. The container transportation tool according to claim 2, wherein a plurality of support assemblies are arranged along an extension direction of the connecting rod.

4. The container transportation tool according to claim 2, wherein an outer diameter of the first support member is smaller than an outer diameter of the second support member.

5. The container transportation tool according to claim 1, wherein the first connecting end is provided with a thread on an outer periphery thereof; the second connecting end is fixedly connected with a tightening member, a normal projection of the tightening member on an end face of the second connecting end is a regular polygon, and the tightening member is arranged to limit a tightening tool in a circumferential direction.

6. The container transportation tool according to claim 1, wherein a transfer lifting ring is further arranged on the second connecting end.

7. A cryogenic vessel, characterized by, The container transportation tool comprises: an inner container provided with a receiving space; an outer shell sleeved outside the inner container and forming a vacuum cavity with the inner container; a connecting pipe, a first end of the connecting pipe being in communication with the receiving space, and a second end of the connecting pipe extending to an outside of the low-temperature container; an end cover covering the second end of the connecting pipe, and the end cover being provided with a through hole; the container transportation tool according to any one of claims 1-6 is inserted into the connecting pipe and extends into the receiving space, the first connecting end is detachably connected to the inner container, the second connecting end passes through the end cover through the through hole and is fixedly connected to the end cover, and the support assembly supports an inner wall of the connecting pipe.

8. The low-temperature container according to claim 7, wherein the connecting pipe comprises: a first connecting sub-pipe arranged outside the inner container and in communication with the receiving space at one end and extending to an outside of the outer shell at the other end; a second connecting sub-pipe sleeved outside the first connecting sub-pipe extending to the outside of the outer shell and connected to the outer shell, wherein the end cover covers an end of the second connecting sub-pipe.

9. The low-temperature container according to claim 7, wherein a positioning nut is arranged on an inner wall bottom of the inner container, and the first connecting end is threadedly connected to the positioning nut.

10. The low-temperature container according to claim 7, wherein The gap between the support assembly and the inner wall of the connecting pipe is 0-2mm.

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