Air column welding structure and air column
By forming a widened welding head at both ends of the welding line and using a layered structure of PE and PA layers, the problem of sharp corners at both ends of the welding line is solved, thereby achieving welding stability and reliability and extending the service life of the gas column.
Patent Information
- Application Number
- CN202423082907.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The weld lines at the existing gas column welding points are prone to forming sharp corners at both ends, which can cause the gas column to break or tear, resulting in unstable welding and affecting service life.
A widened welding head is formed at both ends of the welding line, making its width greater than the welding line, and the sides are arc-shaped. A layered structure of PE and PA layers is adopted, and the PE layer is adhered during welding to improve the stability and reliability of the welding.
The widened welding head makes the ends of the welding line smoother, avoids sharp corners, makes the welding stronger, and improves the overall quality and service life of the air column.
Smart Images
Figure CN223647520U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of inflatable column, specifically relates to a gas column welding structure and gas column. BACKGROUND
[0002] The application field of the gas column is very wide, one of its purposes is to connect a plurality of gas columns to each other to form an inflatable support framework for supporting a tent. The inflated gas column has excellent rigidity and is not easy to bend, thereby providing stable support for the tent. Since the tent needs to be manufactured to conform to a specific shape, the gas column also needs to be changed in shape accordingly, and there is usually a need for bending or curving. The bending or curving of the gas column and the connection of the gas column with other components basically involve welding, which involves hot-press welding.
[0003] As shown in Figure 11 The existing welding structure formed by hot-press welding at the connection of the gas column is a straight-line-shaped welding line 300 with equal width, which has the following defects:
[0004] 1. Since hot-press welding hardens the material in the welding area, the welding line has a certain hardness, and the two ends of the straight-line-shaped welding line 300 form sharp corners 302. After the gas column is inflated and expanded, the sharp corner 302 part will be inserted into the gas column.
[0005] 2. The welding at the two end positions of the welding line 300 is unstable and is prone to tearing from the two ends. INVENTION CONTENTS
[0006] The first object of the utility model is to provide a gas column welding structure.
[0007] The second object of the utility model is to provide a gas column, which forms the welding structure at the welding position.
[0008] The welded gas column of the utility model is more reliable and has a longer service life.
[0009] The first object of the utility model is achieved by the following technical solutions:
[0010] A gas column welding structure, characterized by comprising a welding line formed by hot-press welding at the connection of the gas column and a welding widened head formed by hot-press welding at the two ends of the welding line, the width of the welding widened head being greater than the width of the welding line.
[0011] The further technical solution of the utility model is that the side edge of the welding widened head is an arc-shaped edge.
[0012] The second object of the utility model is achieved by the following technical solutions:
[0013] A gas column, characterized by: a columnar structure formed by at least two joints welded together in sequence, and a gas column welding structure formed by heat pressure welding at the welding position.
[0014] The further technical scheme of the utility model discloses: the film of the joint is layer structure, including PE layer and PA layer, the inside of the PE layer and the outside of the PA layer of adjacent joint are just opposite, the end of adjacent joint is nested together and welded, and the PE layer of nested position is pasted together.
[0015] The further technical scheme of the utility model discloses: the gas column further includes connecting pipe, and the two ends of the connecting pipe are welded together with the two joints to be connected respectively, so as to connect the joints together through the connecting pipe.
[0016] The further technical scheme of the utility model discloses: the film of the joint and the connecting pipe is layer structure, including PE layer and PA layer, the PE layer of the joint is located inside, and the PA layer is located outside, the PE layer of the connecting pipe is located outside, and the PA layer is located inside, the end of the connecting pipe is inserted into the joint, so that the PE layer of the joint and the PE layer of the connecting pipe are pasted together, and the two ends of the connecting pipe are welded together with the two joints to be connected through heat pressure welding.
[0017] The further technical scheme of the utility model discloses: the film of the joint and the connecting pipe is layer structure, including PE layer and PA layer, the PE layer of the joint is located outside, and the PA layer is located inside, the PE layer of the connecting pipe is located inside, and the PA layer is located outside, the end of the connecting pipe is inserted into the joint, so that the PE layer of the joint and the PE layer of the connecting pipe are pasted together, and the two ends of the connecting pipe are welded together with the two joints to be connected through heat pressure welding.
[0018] Compared with the prior art, the utility model has the advantages of:
[0019] The utility model discloses welding widened head at the both ends of the welding line through heat pressure welding, and the width of the welding widened head is greater than the width of the welding line, so that the both ends of the welding line are more smooth through the welding widened head, and the sharp angle no longer appears, the situation that the sharp angle inserts and breaks the gas column can be avoided, and the welding of the both ends of the welding line is more firm and reliable through widening, and the both ends are not easy to tear, so that the overall quality and service life of the gas column are improved. ACCURACY OF DRAWINGS
[0020] Figure 1 It is the front view schematic diagram of the gas column of the utility model embodiment one;
[0021] Figure 2 It is Figure 1 The enlarged schematic diagram of A place in the;
[0022] Figure 3 is Figure 2 a sectional view at E-E in figure
[0023] Figure 4 is a top view of the inflatable supporting framework of the embodiment one of the present utility model;
[0024] Figure 5 is Figure 4 an enlarged view at B in figure
[0025] Figure 6 is a front view of the air column of the embodiment two of the present utility model;
[0026] Figure 7 is Figure 6 an enlarged view at C in figure
[0027] Figure 8 is a front view of the air column of the embodiment three of the present utility model;
[0028] Figure 9 is Figure 8 an enlarged view at D in figure
[0029] Figure 10 is a structure view of the joint welding of the embodiment five of the present utility model;
[0030] Figure 11 is a schematic view of the air column welding structure formed by hot pressure welding of the prior art.
[0031] Meaning of reference signs in the figure:
[0032] 100-air column; 101-joint; 200-connecting pipe; 300-welding line; 301-welding widened head; 302-sharp corner; 303-arc-shaped edge; 500-air column communication piece; 501-communication port; 601-PA layer; 602-PE layer. DETAILED DESCRIPTION
[0033] The present utility model is further described below in combination with embodiments.
[0034] In the description of the present utility model, it is understood that, in relation to the position description, for example, the position or location relationship indicated by the upper, lower, front, rear, left, right, etc. is the position or location relationship shown based on the figure, and is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model.
[0035] In the description of the utility model, if several meanings are one or more, the meaning of multiple is two or more, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number. If it is described to the first, the second is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0036] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0037] Embodiment one:
[0038] As shown in Figure 2 Embodiment one, the gas column welding structure includes a straight welding line 300 formed by heat pressure welding at the connecting place of the gas column 100 and a welding widened head 301 formed by heat pressure welding at both ends of the welding line 300. The welding line 300 and the welding widened head 301 at both ends are formed by one-time welding. Wherein, the connecting place includes the connecting place between the joint 101 and the joint 101 and the connecting place between the gas column 100 and the gas column communication piece 500.
[0039] The width of the welding widened head 301 is greater than the width of the welding line 300, and the side of the welding widened head 301 is an arc-shaped edge 303. The setting of the arc-shaped edge 303 makes the both ends of the welding line 300 more smooth, the welding quality is better, and the gas column is not easy to appear.
[0040] As shown in Figure 1 And Figure 2 Embodiment one also discloses a gas column, which includes two joints 101 and connecting pipes 200, and the joint 101 is cylindrical. Of course, the number of joints 101 can also be more than two, and the connecting pipe 200 will be arranged at the connecting place between the joint 101 and the joint 101.
[0041] As shown in Figure 3As shown, the film of the joint 101 and the connecting pipe 200 in the embodiment is a layered structure, including a PE layer 602 and a PA layer 601. The PE layer 602 of the joint 101 is located on the inner side, and the PA layer 601 is located on the outer side. The PE layer 602 of the connecting pipe 200 is located on the outer side, and the PA layer 601 is located on the inner side. The end of the connecting pipe 200 is inserted into the joint 101. The PE layer 602 of the joint 101 is attached to the PE layer 602 of the connecting pipe 200. During welding, the connecting pipe 200 and the two joints 101 to be connected are in a flat state. Then, the two ends of the connecting pipe 200 are welded to the two joints 101 to be connected by hot-press welding, and the welding structure is formed at the welding position.
[0042] The overall performance of the above-mentioned air column is better because the PE layer 602 has a lower melting point, which can quickly melt during hot-pressing, facilitating manufacturing and processing. In addition, the PE layer 602 with a low melting point also has good sealing performance, which can effectively prevent gas leakage. The PA layer 601 has a high melting point and can remain stable at high temperatures. In addition, the PA layer 601 has good tensile strength. The high-melting-point PA layer 601 is beneficial to improving the structural strength and stability of the air column, enabling it to better support the structure of the tent and ensuring its safety during use.
[0043] The structure of the two sides of the widened head 301 in the embodiment is basically symmetrical. The welding structures formed at the two ends of the connecting pipe 200 are separated, and the two ends of the connecting pipe 200 are welded to the joint 101 at one time.
[0044] One of the uses of the air column 100 is to connect into an inflatable support framework for supporting a tent, as shown in Figure 4 and Figure 5 The inflatable support framework has four air columns 100 as legs. The middle part of the inflatable support framework is provided with an air column communication piece 500 having four communication openings. One end of the air column 100 is open, and the other end is closed. The air column communication piece is composed of two layers of film, and an internal space is formed between the two layers of film. The four communication openings 501 are formed around the air column communication piece 500. The inner side of the film of the air column communication piece 500 is a PE layer, and the outer side is a PA layer. The open end of the air column 100 is connected to the communication opening 501 of the air column communication piece 500. The connecting pipe 200 is arranged at the connection position. One end of the connecting pipe 200 is inserted into the communication opening 501, and the other end is inserted into the opening of the air column 100. Hot-press welding is performed to form the air column welding structure.
[0045] Embodiment Two:
[0046] As shown in Figure 6 and Figure 7As shown, the difference between Embodiment 2 and Embodiment 1 lies in the structure of the welded widened head 301. In this embodiment, the welded widened head 301 of the gas column welding structure formed by welding the two ends of the connecting pipe 200 and the joint 101 is an integral part.
[0047] Example 3:
[0048] like Figure 8 and Figure 9 As shown, the difference between Embodiment 3 and Embodiment 1 lies in the structure of the welded widened head 301. In this embodiment, one side of the welded widened head 301 is relatively flat, and the welded widened head 301 of the gas column welding structure formed by welding the two ends of the connecting pipe 200 and the joint 101 is separate.
[0049] Example 4:
[0050] The difference between Embodiment 4 and Embodiment 1 lies in the change of the layered structure. In this embodiment, the PE layer 602 of the joint 101 is located on the outer side, and the PA layer 601 is located on the inner side. The PE layer 602 of the connecting pipe 200 is located on the inner side, and the PA layer 601 is located on the outer side. The end of the connecting pipe 200 is sleeved on the outer side of the joint 101, and the PE layer of the joint 101 is in close contact with the PE layer of the connecting pipe 200. During welding, both the connecting pipe 200 and the two joints 101 to be connected are in a flat state. Then, the end of the connecting pipe 200 is welded to the joint 101 by hot-press welding, forming the welded structure described above at the weld joint.
[0051] Example 5:
[0052] The difference between Example 5 and Example 1 lies in the welding method between the joints. In this example, the joints are directly nested and then welded together.
[0053] The specific method is as follows: In this embodiment, the membrane used to fabricate joint 101 is also a layered structure, including a PE layer 602 and a PA layer 601. However, the inner and outer positions of the PE layer 602 and PA layer 601 of adjacent joints are exactly opposite. The ends of adjacent joints are nested together for welding, and the PE layers at the nested welding positions are adhered to each other. For example: Figure 10 As shown, the PE layer 602 of the left joint 101 is located on the inner side and the PA layer 601 is located on the outer side. Then, the next adjacent right joint 101 has the PE layer 602 located on the outer side and the PA layer 601 located on the inner side.
[0054] The above embodiments of the utility model are not the limitation of the protection scope of the utility model, and the implementation mode of the utility model is not limited to this, and according to the above content of the utility model, according to the ordinary technical knowledge and usual means in the field, other various forms of modification, replacement or change of the above structure of the utility model are made without departing from the above basic technical thought of the utility model, and all should fall within the protection scope of the utility model.
Claims
1. A gas column weld structure, characterized by: A welding line formed by heat pressure welding at the joint of the air column and welding widened head formed by heat pressure welding at both ends of the welding line, the width of the welding widened head is larger than the width of the welding line.
2. The gas column weld structure of claim 1, wherein: The side of the welding widened head is arc-shaped.
3. A gas column characterized by: A columnar structure is formed by welding at least two joints together in sequence, the air column welding structure of claim 1 or 2 is formed by heat pressure welding at the joint.
4. The gas column of claim 3, wherein: The film made into the joint is a layered structure, including PE layer and PA layer, the PE layer and PA layer of adjacent joints are located at opposite inside and outside, the end of adjacent joints are nested for welding, and the PE layers of the nested positions are attached together.
5. The gas column of claim 3, wherein: The air column further comprises a connecting pipe, both ends of the connecting pipe are welded with two joints to be connected, so as to connect the joints together through the connecting pipe.
6. The gas column of claim 5, wherein: The film made into the joint and the connecting pipe is a layered structure, including PE layer and PA layer, the PE layer of the joint is located at the inside, and the PA layer is located at the outside, the PE layer of the connecting pipe is located at the outside, and the PA layer is located at the inside, the end of the connecting pipe is inserted into the joint, so that the PE layer of the joint is attached to the PE layer of the connecting pipe, and both ends of the connecting pipe are welded with two joints to be connected by heat pressure welding.
7. The gas column of claim 5, wherein: The film made into the joint and the connecting pipe is a layered structure, including PE layer and PA layer, the PE layer of the joint is located at the outside, and the PA layer is located at the inside, the PE layer of the connecting pipe is located at the inside, and the PA layer is located at the outside, the end of the connecting pipe is inserted into the joint, so that the PE layer of the joint is attached to the PE layer of the connecting pipe, and both ends of the connecting pipe are welded with two joints to be connected by heat pressure welding.