Improved heat preservation box foaming supporting device

Abstract

The utility model discloses an improved heat preservation box foaming supporting device which comprises a connecting column and a connecting piece, positioning grooves are formed in the two side faces of the connecting column, the connecting piece is of a rectangular structure, and the middle point of the end face of the connecting piece protrudes outwards to form a positioning protruding block. The shape and the size of a protruding part of the positioning protruding block are matched with those of a concave hole of the positioning groove in the connecting column, the two connecting pieces are arranged on the end faces of the two sides of the connecting column respectively, and after the protruding parts of the positioning protruding blocks on the end faces of the connecting pieces are connected with the positioning groove in the end face of the connecting column in a clamped mode, the connecting pieces and the positioning groove are welded into an integrated structure through welding equipment. According to the utility model, after the positioning grooves are formed in the connecting columns and the positioning bumps corresponding to the positioning grooves are arranged on the connecting sheets, the positioning grooves and the positioning bumps are matched with each other to realize quick positioning and clamping, so that the positioning time of the connecting sheets and the connecting columns in the welding process is shortened, the welding efficiency is effectively improved, the positioning is accurate, defective products are reduced, and the production cost is reduced. And the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of solar energy foaming processing, and particularly relates to an improved foaming support device for a heat preservation box. Background Art

[0002] The heat preservation water tank of a solar water heater is composed of an inner tank, a heat preservation layer, and a water tank outer shell. The inner tank of the water tank is an important part for storing hot water, and the strength and corrosion resistance of the materials used in it are crucial. There are materials such as stainless steel and enamel on the market. The quality of the heat preservation material of the heat preservation layer is directly related to the heat preservation effect, which is particularly important in cold seasons. The current processing technology is to first install the inner tank into the water tank outer shell, and then fill the foaming agent, that is, the heat preservation layer, between the inner tank and the water tank outer shell. In this way, the heat transfer between the inner tank and the outside can be isolated through the heat preservation layer to ensure the heat preservation effect.

[0003] During the pouring process of the foaming material, the foaming material foams around the inner tank. There is a pressure difference on different sides. If the position of the inner tank is not completely fixed, when this pressure difference is greater than the resistance that causes the inner tank to move, the position of the inner tank will shift. When the shift occurs in the direction of the vacuum tube hole and exceeds the tolerance requirement, a defect of uneven heat preservation layer will be generated. The defect of uneven heat preservation layer is a fatal defect that affects the overall quality of the water heater and must be re-foamed, resulting in a large amount of waste.

[0004] Currently, when the inner tank is foamed, it is mainly supported by arranging support members in the cavity between the inner tank and the outer shell and then foamed. This method mainly relatively tightly positions and fixes the inner tank and the outer shell through the support members, sprays a mold release agent on the support members, removes the support members after foaming and then trims them, and then injects part of the foaming material and buckles the end cover. The currently used support members are two connecting pieces arranged oppositely and welded by connecting columns. When welding, one side needs to be welded first and then the other side. However, during the welding process, the connecting pieces on both sides of the connecting column cannot quickly correspond to their welding positions, and a great deal of effort is required to align the welding positions before welding, greatly reducing the welding efficiency. Summary of the Invention

[0005] To solve the above problems, the utility model provides an improved foaming support device for a heat preservation box that can quickly locate the welding position and improve the welding efficiency.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: An improved foaming support device for a heat preservation box, including a connecting column and a connecting piece. The connecting column is a hollow cylindrical structure, and the two side surfaces of the connecting column are closed structures. At the center of the end surface of the closed structure, a positioning groove is opened that is recessed towards the center of the column body of the connecting column.

[0007] The connecting piece is of a rectangular structure, and its four inner angles are chamfered. A positioning convex block protrudes outward at the midpoint of the end face of the connecting piece. The shape and size of the protruding part of the positioning convex block are adapted to the concave hole of the positioning groove on the connecting column. And on the flat part of the positioning convex block, that is, at the midpoint of the side of the end face of the connecting piece that is not protruding, a spot welding hole is provided. The shape of the spot welding hole is a frustum structure, and its hole diameter gradually decreases in the direction of the protruding part of the positioning convex block. The depth of the spot welding hole is three-quarters of the thickness of the connecting piece. Lightening holes are provided on the end face of the connecting piece, and the number of lightening holes is four. Taking two as a group, they are respectively arranged on both sides of the midpoint of the end face of the connecting piece.

[0008] There are two connecting pieces, which are respectively arranged on the two end faces of the connecting column. After the protruding parts of the positioning convex blocks on the end faces of the connecting pieces are engaged with the positioning grooves on the end faces of the connecting column, they are welded into an integral structure by a welding device.

[0009] Preferably, in order to improve the stability of welding, the wall thickness of the positioning groove is greater than the wall thickness of the two end faces of the connecting column.

[0010] Preferably, in order to complete positioning quickly, a connecting groove is provided on the end face of the connecting piece outside the positioning convex block. The connecting groove is a circular groove, and its diameter is the same as the diameter of the two end faces of the connecting column. Its groove depth is one-fifth of the thickness of the connecting piece.

[0011] Beneficial effects: By providing a positioning groove on the connecting column and a corresponding positioning convex block on the connecting piece, the present invention can be quickly positioned and engaged with each other, reducing the positioning time of the connecting piece and the connecting column during the welding process, effectively improving the welding efficiency, and having accurate positioning, reducing defective products and lowering the production cost. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the present invention during welding and forming.

[0013] Figure 2 It is a schematic structural diagram of the present invention before welding.

[0014] Figure 3 It is a schematic structural diagram of the connecting piece in the present invention.

[0015] Figure 4 It is a schematic structural diagram of the connecting column in the present invention.

[0016] Figure 5 It is a schematic structural diagram of the connecting piece in the second embodiment of the present invention.

[0017] In the figure: 1. Connecting column; 2. Connecting piece; 3. Positioning groove; 4. Positioning convex block; 5. Spot welding hole; 6. Lightening hole; 7. Connecting groove. Detailed implementation mode

[0018] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Among them, the same parts are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. Moreover, the accompanying drawings are all in a very simplified form, using non-precise ratios, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present utility model. Embodiment 1

[0020] Refer to Figures 1-4 , this embodiment discloses an improved foaming support device for an insulation box, which is used to assist in supporting the inner liner of the insulation box during foaming. Specifically, it includes a connecting column 1 and a connecting piece 2. Refer to Figure 1 、 Figure 2 and Figure 4 , the connecting column 1 is a hollow cylindrical structure, and the two side surfaces of the connecting column 1 are closed structures. At the center of the end surface of the closed structure, a positioning groove 3 is provided that is recessed towards the center of the column body of the connecting column 1.

[0021] From Figure 2 and Figure 4 , it can be seen that the connecting piece 2 is a rectangular structure, and its four inner angles are chamfered structures. Refer to Figure 2 , a positioning convex block 4 protrudes outward at the midpoint of the end surface of the connecting piece 2. The shape and size of the protruding part of the positioning convex block 4 are adapted to the concave hole of the positioning groove 3 on the connecting column 1. Moreover, on the flat part of the positioning convex block 4, that is, on the side of the end surface of the connecting piece 2 that does not protrude, a spot welding hole 5 is provided. The hole shape of the spot welding hole 5 is a frustum structure, and its hole diameter gradually decreases in the direction of the protruding part of the positioning convex block 4. The depth of the spot welding hole 5 is three-quarters of the thickness of the connecting piece 2. Four relief holes 6 are provided on the end surface of the connecting piece 2, and they are grouped in pairs and are respectively arranged on both sides of the midpoint of the end surface of the connecting piece 2.

[0022] Refer to Figure 1 , the number of the connecting pieces 2 is two, which are respectively arranged on both end surfaces of the connecting column 1. After the protruding parts of the positioning convex blocks 4 on the end surfaces of the connecting pieces 2 are engaged with the positioning grooves 3 on the end surfaces of the connecting column 1, they are welded into an integral structure by welding equipment. Embodiment 2

[0023] Refer to Figure 1 and Figures 3-5 The specific structure and implementation mode are as shown in Embodiment 1. The difference is that: the wall thickness of the positioning groove 3 is greater than the wall thickness of the two end surfaces of the connecting column 1.

[0024] From Figure 5 It can be seen that a connection groove 7 is formed on the end surface of the connection piece 2 outside the positioning convex block 4 on the connection piece 2. The connection groove 7 is a circular groove, and its diameter is the same as the diameters of the two end surfaces of the connection column 1, and the depth of the groove is one-fifth of the thickness of the connection piece 2.

[0025] During use, first spray a release agent on the surface of the welded support member, determine the number of support members according to actual requirements, and then place them in pairs in the upper front space between the outer shell and the inner liner of the solar thermal insulation box so that they clamp the inner liner correspondingly. After completing the auxiliary support, the foaming process can be started.

[0026] The above embodiments merely illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An improved foam support device for an incubator, comprising a connecting column (1) and a connecting piece (2), characterized in that: The connecting column (1) is a hollow cylindrical structure, and both side surfaces of the connecting column (1) are closed structures. At the center of the end face of the closed structure, a positioning groove (3) is provided that is recessed towards the center of the column body of the connecting column (1). The connecting piece (2) is a rectangular structure, and its four inner corners are chamfered. A positioning protrusion (4) protrudes outward from the midpoint of the end face of the connecting piece (2). The shape and size of the protruding part of the positioning protrusion (4) are adapted to the concave hole of the positioning groove (3) on the connecting column (1). And on the flat part of the positioning protrusion (4), that is, at the midpoint of the side of the end face of the connecting piece (2) that is not protruding, a spot welding hole (5) is provided. The hole shape of the spot welding hole (5) is a frustum structure, and its hole diameter gradually decreases in the direction of the protruding part of the positioning protrusion (4). The depth of the spot welding hole (5) is three-quarters of the thickness of the connecting piece (2). Four relief holes (6) are provided on the end face of the connecting piece (2), and in groups of two, they are respectively arranged on both sides of the midpoint of the end face of the connecting piece (2). The number of the connecting pieces (2) is two, and they are respectively arranged on both end faces of the connecting column (1). After the protruding parts of the positioning protrusions (4) on the end faces of the connecting pieces (2) are engaged with the positioning grooves (3) on the end faces of the connecting column (1), they are welded into an integral structure by welding equipment.

2. An improved foam support device for an incubator according to claim 1, wherein: The wall thickness of the positioning groove (3) is greater than the wall thickness of both end faces of the connecting column (1).

3. An improved insulation box foaming support device according to claim 1 or 2, characterized in that: An improved foam support device for an incubator. A connecting groove (7) is provided on the end face of the connecting piece (2) outside the positioning protrusion (4). The connecting groove (7) is a circular groove, and its diameter is the same as the diameter of both end faces of the connecting column (1). The depth of the groove is one-fifth of the thickness of the connecting piece (2).

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