Welding structure of thin plate pressure-resistant vacuum shell

Abstract

The utility model provides a welding structure of a thin-plate pressure-resistant vacuum shell, which comprises two inner-layer plates close to each other and two outer-layer plates close to each other, and I-shaped steel is arranged between the position where the two inner-layer plates are close to each other and the position where the two outer-layer plates are close to each other; the end faces, close to each other, of the two inner-layer plates and the end faces, close to each other, of the two outer-layer plates are welded to the upper wing plate and the lower wing plate of the I-shaped steel in a sealed mode respectively. The inner-layer plate and the outer-layer plate are respectively provided with a plurality of cutting holes along the length direction of the I-shaped steel; each cutting hole is welded to the I-shaped steel, and every two adjacent cutting holes are welded to the I-shaped steel through spot welding. The welding structure of the thin plate pressure-resistant vacuum shell solves the technical problems that in the prior art, the welding strength of the thin plate pressure-resistant vacuum shell is prone to being damaged, and heat conduction inside and outside the welding position is too high.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding structure of a thin plate pressure-resistant vacuum shell. Background Art

[0002] At present, the body of the quality preservation and fresh-keeping warehouse is welded with double-layer thin plates. The double-layer thin plates are used to reduce the heat conduction inside and outside the warehouse. The gas in the warehouse needs to be adjusted according to the items stored in the quality preservation and fresh-keeping warehouse. When adjusting the gas inside the quality preservation and fresh-keeping warehouse, vacuuming and inflation operations are required. When the double-layer thin plates of the warehouse body are welded with ordinary structures, the welding joints will be concave or convex due to the change of air pressure, causing stress and metal fatigue, affecting the strength of the welds or even breaking them; at the same time, when ordinary welding structures are used, a large amount of heat inside and outside the warehouse will be conducted through the welding joints, increasing the energy consumption of the quality preservation and fresh-keeping warehouse. Utility Model Content

[0003] In order to solve the technical problems in the prior art that the welding strength of the thin plate pressure-resistant vacuum shell is easily damaged and the heat conduction inside and outside the welding point is too high, the utility model provides a welding structure of the thin plate pressure-resistant vacuum shell.

[0004] A welding structure of a thin plate pressure-resistant vacuum shell comprises two inner plates whose end faces are close to each other and two outer plates whose end faces are close to each other, an I-beam is arranged between the places where the two inner plates are close to each other and the places where the two outer plates are close to each other; the end faces of the two inner plates close to each other are sealed and welded to the upper wing plate of the I-beam, and the end faces of the two outer plates close to each other are sealed and welded to the lower wing plate of the I-beam; the inner plates and the outer plates are each provided with a plurality of cut holes along the length direction of the I-beam; each of the cut holes of the inner plates is welded to the upper wing plate of the I-beam, and two adjacent cut holes are welded to the upper wing plate of the I-beam by a plurality of spot weldings; each of the cut holes of the outer plates is welded to the lower wing plate of the I-beam, and two adjacent cut holes are welded to the lower wing plate of the I-beam by a plurality of spot weldings.

[0005] In a preferred embodiment of the welding structure of the thin plate pressure-resistant vacuum shell provided by the utility model, a plurality of through holes are provided on the waist plate of the I-beam.

[0006] In a preferred embodiment of the welding structure of the thin plate pressure-resistant vacuum shell provided by the utility model, a plurality of slits are arranged on the waist plate of the I-beam.

[0007] Compared with the prior art, the welding structure of the thin plate pressure-resistant vacuum shell provided by the utility model effectively protects the sealing welds of the I-beams and the end faces of the inner plate and the outer plate by welding and spot welding the I-beams and the inner plate and the outer plate through the incisions, and prevents the sealing welds from being concave or convex due to changes in air pressure, causing stress and metal fatigue, affecting the strength of the welds, or even breaking them.

[0008] Through the arrangement of the I-beam, the heat inside and outside the shell is only conducted through the waist plate of the I-beam, which effectively reduces energy loss;

[0009] Through the through holes or slits opened on the waist plate of the I-beam, the heat conduction effect of the waist plate of the I-beam is further reduced, thereby reducing energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the welding structure of the thin plate pressure-resistant vacuum shell provided by the utility model;

[0011] Figure 2 It is a structural schematic diagram of the welding structure of the thin plate pressure-resistant vacuum shell provided by the utility model from another perspective;

[0012] Figure 3 It is a structural schematic diagram of an I-beam in a welding structure of a thin plate pressure-resistant vacuum shell provided by the utility model in a first embodiment;

[0013] Figure 4 It is a structural schematic diagram of an I-beam in a welding structure of a thin plate pressure-resistant vacuum shell provided by the utility model in a second embodiment. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0015] Example 1

[0016] Please also see Figures 1 to 3 , respectively, are structural schematic diagrams of the welding structure of the thin plate pressure-resistant vacuum shell provided by the present invention at two different viewing angles and a structural schematic diagram of the I-beam in Example 1.

[0017] A welding structure of a thin plate pressure-resistant vacuum shell comprises two inner plates 1 with end faces close to each other and two outer plates 2 with end faces close to each other, and an I-beam 3 is arranged between the end faces of the two inner plates 1 close to each other and the end faces of the two outer plates 2 close to each other. Two rows of through holes 31 are arranged on the waist plate of the I-beam 3 along its length direction. Under the premise of ensuring the structural strength of the I-beam 3, the aperture of the through hole 31 and the spacing between the multiple through holes 31 are determined.

[0018] The end surfaces of the two inner plates 1 close to each other are sealed and welded to the upper wing plate of the I-beam 3 , and the end surfaces of the two outer plates 2 close to each other are sealed and welded to the lower wing plate of the I-beam 3 .

[0019] The inner plate 1 and the outer plate 2 are each provided with a plurality of square cut holes 11 along the length direction of the I-beam 3. The side of each cut hole 11 of the inner plate 1 is welded to the upper wing plate of the I-beam 3, and the inner plate 1 is welded to the upper wing plate of the I-beam 3 by two spot weldings between two adjacent cut holes 11; the side of each cut hole 11 of the outer plate 2 is welded to the lower wing plate of the I-beam 3, and the outer plate 2 is welded to the lower wing plate of the I-beam 3 by spot welding between two adjacent cut holes 11.

[0020] Example 2

[0021] Please refer to Figure 4 , is a structural schematic diagram of an I-beam in a welding structure of a thin plate pressure-resistant vacuum shell provided by the utility model in a second embodiment.

[0022] The difference between the second embodiment and the first embodiment is that the multiple through holes 31 on the waist plate of the I-beam 3 are changed into multiple slits 32, and the slits 32 are arc-shaped or strip-shaped, and in this embodiment, they are arc-shaped slits 32. Under the premise of ensuring the structural strength of the I-beam 3, the curvature and length of the slits 32 and the spacing between adjacent slits 32 are determined.

[0023] The body of the quality preservation and freshness preservation warehouse is welded into a double-layer shell by multiple inner plates 1 and multiple outer plates 2, and the welding structure of the thin plate pressure-resistant vacuum shell is used for welding at the welding points to make it a complete warehouse body.

[0024] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A welding structure of a thin plate pressure-resistant vacuum shell, characterized in that: It comprises two inner plates whose end faces are close to each other and two outer plates whose end faces are close to each other, an I-beam is arranged between the places where the two inner plates are close to each other and the places where the two outer plates are close to each other; the end faces of the two inner plates close to each other are sealed and welded to the upper wing plate of the I-beam, and the end faces of the two outer plates close to each other are sealed and welded to the lower wing plate of the I-beam; the inner plates and the outer plates are each provided with a plurality of cut holes along the length direction of the I-beam; each of the cut holes of the inner plates is welded to the upper wing plate of the I-beam, and the space between two adjacent cut holes is welded to the upper wing plate of the I-beam by a plurality of spot weldings; each of the cut holes of the outer plates is welded to the lower wing plate of the I-beam, and the space between two adjacent cut holes is welded to the lower wing plate of the I-beam by a plurality of spot weldings.

2. The welding structure of the thin plate pressure-resistant vacuum shell according to claim 1, characterized in that: The waist plate of the I-beam is provided with a plurality of through holes.

3. The welding structure of the thin plate pressure-resistant vacuum shell according to claim 1, characterized in that: A plurality of slits are arranged on the waist plate of the I-beam.

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