Airflow needle tube set structure for hot gas welding of double-cavity gas storage cylinder

Abstract

The utility model is applicable to the technical field of air reservoir processing equipment, in particular to an airflow needle tube group structure for hot gas welding of a double-cavity air reservoir, which comprises a heating panel, an airflow gathering ring is arranged on the surface of the heating panel, and a large-cavity airflow needle tube group and a small-cavity airflow needle tube group which are both circular are arranged on the surface of the heating panel. According to the utility model, the plurality of airflow needle tubes are arranged on the surface of the heating panel in the form of double rows and staggered with each other to form the large-cavity airflow needle tube group and the small-cavity airflow needle tube group, so that the large-cavity airflow needle tube group and the small-cavity airflow needle tube group can be used for hot air welding of the double-cavity air reservoir; the area of an uncovered area existing at the intersection of the hot air range blown out by the adjacent airflow needle holes is obviously reduced, so that the welding rib is more comprehensively covered, the improvement ensures that the hot air can more effectively act on the welding area, and the structural strength after welding is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cylinder processing equipment, in particular to an air flow needle tube group structure for hot air welding of a double-cavity gas cylinder. Background Art

[0002] In the automobile braking and whistle system, the air cylinder is an important energy storage component, and its structural strength plays a decisive role in the safety and stability of the entire system. The air pressure in the air cylinder is usually much higher than the atmospheric pressure, so there are high requirements for its structural strength. With the development of technology and the increase in lightweight demand, plastic materials have gradually replaced traditional steel materials as the main manufacturing material for air cylinders, but the physical and chemical properties of plastics limit their welding strength, which poses a higher challenge to the performance of air cylinders.

[0003] At present, commonly used plastic welding methods such as infrared welding and vibration friction welding often fail to meet the ideal requirements in providing the necessary weld strength. The limitations of these methods are that they cannot effectively control oxidation and uniformity at the weld, especially when dealing with high glass fiber content plastics. In addition, these technologies often require direct contact with the material, which may cause material damage or uneven welds. Hot gas welding, also known as hot air welding, provides an effective solution. This technology uses inert gas to heat the weld ribs. After compressed air is converted into inert gas and heated to the required temperature by a hot air device, it is sprayed directly through orderly arranged air flow pinholes to soften and melt the weld ribs on the plastic parts. The advantage of this method is its non-contact nature and ability to prevent oxidation during welding, so that the weld strength can theoretically reach more than 85% of the body, thus meeting the use requirements of the gas reservoir in a high-pressure environment.

[0004] like Figure 8 As shown, in the prior art, the airflow needle tube group for the double-chamber gas reservoir is usually arranged in a single row on the heating panel, which results in a large uncovered area at the intersection of the hot air blown out by the adjacent airflow needle holes, resulting in insufficient hot air coverage of the welding ribs of the gas reservoir, resulting in poor welding effect. In this regard, the utility model provides an airflow needle tube group structure for hot air welding of a double-chamber gas reservoir to solve the above technical problems. Utility Model Content

[0005] The purpose of the embodiment of the utility model is to provide a double-chamber gas storage cylinder air flow needle tube group structure for hot gas welding, aiming to solve the technical problems mentioned in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A double-cavity air storage cylinder hot air welding airflow needle tube group structure, comprising a heating panel, and the surface of the heating panel is provided with an airflow gathering ring, the surface of the heating panel is provided with a large-cavity airflow needle tube group and a small-cavity airflow needle tube group, both of which are circular, and the small-cavity airflow needle tube group is placed inside the large-cavity airflow needle tube group;

[0008] The large cavity airflow needle tube group is composed of a plurality of second airflow needle tubes, and the plurality of second airflow needle tubes are divided into two rows and staggeredly distributed on the surface of the heating panel;

[0009] The small cavity airflow needle tube group is composed of a plurality of first airflow needle tubes, and the plurality of first airflow needle tubes are divided into two rows and staggeredly distributed on the surface of the heating panel;

[0010] A plurality of vent holes are provided on the surface of the heating panel near the small cavity airflow needle tube group and the large cavity airflow needle tube group, and these vent holes are respectively connected with a plurality of second airflow needle tubes and a plurality of first airflow needle tubes.

[0011] Furthermore, the aperture and length of the first airflow needle tube are the same as those of the second airflow needle tube, and the aperture of the first airflow needle tube and the second airflow needle tube is 2.5-3 mm.

[0012] Furthermore, the surface of the heating panel near the large cavity airflow needle tube group is detachably connected with a first airflow guide ring and a second airflow guide ring, and the large cavity airflow needle tube group is located between the first airflow guide ring and the second airflow guide ring, and the surface of the heating panel near the small cavity airflow needle tube group is detachably connected with a third airflow guide ring and a fourth airflow guide ring, and the small cavity airflow needle tube group is located between the third airflow guide ring and the fourth airflow guide ring.

[0013] Furthermore, a plurality of first mounting feet are provided on the outer side of the first airflow guide ring, a plurality of second mounting feet are provided on the outer side of the second airflow guide ring, a plurality of third mounting feet are provided on the outer side of the third airflow guide ring, a plurality of fourth mounting feet are provided on the outer side of the fourth airflow guide ring, and surfaces of the first mounting feet, the second mounting feet, the third mounting feet and the fourth mounting feet are all provided with fixing holes.

[0014] Furthermore, the heights of the first airflow guide ring, the second airflow guide ring, the third airflow guide ring and the fourth airflow guide ring are all the same, and are 2-5 mm greater than the lengths of the first airflow needle tube and the second airflow needle tube.

[0015] The utility model provides a double-chamber air storage cylinder hot air welding air flow needle tube group structure, which has the following beneficial effects:

[0016] By arranging a plurality of airflow needle tubes in double rows and staggered with each other on the surface of the heating panel to form a large-cavity airflow needle tube group and a small-cavity airflow needle tube group, the area of ​​the uncovered region at the intersection of the hot air range blown by adjacent airflow needle holes can be significantly reduced during the hot air welding of the double-cavity air storage cylinder using the large-cavity airflow needle tube group and the small-cavity airflow needle tube group, thereby achieving more comprehensive coverage of the welding ribs. This improvement ensures that the hot air can act more effectively on the welding area, thereby significantly improving the structural strength after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a structural schematic diagram of an air flow needle tube group structure for hot air welding with a double-chamber air storage cylinder.

[0018] Figure 2 The exploded structural diagram of an airflow needle tube assembly structure for hot air welding with a double-chamber air storage cylinder is shown.

[0019] Figure 3 The present invention is a schematic cross-sectional structure diagram of an air flow needle tube group structure for hot air welding of a double-chamber air storage cylinder.

[0020] Figure 4 The present invention is a schematic diagram of the partial structure of a first air flow guide ring in an air flow needle tube group structure for hot air welding of a double-chamber air storage cylinder.

[0021] Figure 5 The present invention is a schematic diagram of the partial structure of a second air flow guide ring in an air flow needle tube group structure for hot air welding of a double-chamber air storage cylinder.

[0022] Figure 6 The present invention is a schematic diagram of the partial structure of the third air flow guide ring in the air flow needle tube group structure for hot air welding of a double-chamber air storage cylinder.

[0023] Figure 7 The present invention is a schematic diagram of the partial structure of the fourth air flow guide ring in the air flow needle tube group structure for hot air welding of a double-chamber air storage cylinder.

[0024] Figure 8 This is the hot air blowing effect of using an airflow needle tube in the prior art.

[0025] Fig. 9 This is the hot air blowing effect using the airflow needle tube in this application.

[0026] In the figure: 1. heating panel; 2. airflow focusing ring; 3. first airflow guide ring; 4. second airflow guide ring; 5. third airflow guide ring; 6. fourth airflow guide ring; 7. small cavity airflow needle tube group; 71. first airflow needle tube; 8. large cavity airflow needle tube group; 81. second airflow needle tube; 9. first mounting foot; 10. second mounting foot; 11. third mounting foot; 12. fourth mounting foot. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0029] like Figure 1-Figure 4 As shown, an airflow needle tube group structure for hot gas welding of a double-cavity air storage cylinder provided in an embodiment of the utility model comprises a heating panel 1, and an airflow gathering ring 2 is arranged on the surface of the heating panel 1. The above technical features are all mature prior arts, and are technical solutions that are not difficult for those skilled in the art to obtain or think of. Those skilled in the art can make corresponding adjustments and selections based on the above technical solutions. A large-cavity airflow needle tube group 8 and a small-cavity airflow needle tube group 7 are arranged on the surface of the heating panel 1, and the small-cavity airflow needle tube group 7 is placed inside the large-cavity airflow needle tube group 8.

[0030] The large cavity airflow needle tube group 8 is composed of a plurality of second airflow needle tubes 81, and the plurality of second airflow needle tubes 81 are divided into two rows and staggeredly distributed on the surface of the heating panel 1;

[0031] The small cavity airflow needle tube group 7 is composed of a plurality of first airflow needle tubes 71 , and the plurality of first airflow needle tubes 71 are divided into two rows and are distributed on the surface of the heating panel 1 in an interlaced manner.

[0032] A plurality of ventilation holes are provided on the surface of the heating panel 1 near the small cavity airflow needle tube group 7 and the large cavity airflow needle tube group 8, and these ventilation holes are connected to a plurality of second airflow needle tubes 81 and a plurality of first airflow needle tubes 71 respectively.

[0033] In one embodiment of the utility model, after the heating panel 1 is heated to a preset temperature, the welding worker blows inert gas into a plurality of vent holes opened on the heating panel 1, so that the inert gas is heated and enters a plurality of second airflow needle tubes 81 and a plurality of first airflow needle tubes 71, until the inert gas is blown onto the large and small cavity welding bars of the double-cavity gas storage cylinder to be processed;

[0034] It can be understood that the aperture and length of the first airflow needle tube 71 and the second airflow needle tube 81 are the same, that is, the first airflow needle tube 71 and the second airflow needle tube 81 are airflow needle tubes of the same specifications. Figure 8 and 9As shown, since the small cavity airflow needle tube group 7 and the large cavity airflow needle tube group 8 of the present application are in a double-row form, the apertures of the corresponding first airflow needle tubes 71 and the second airflow needle tubes 81 are smaller than the apertures of the airflow needle tubes in the prior art. For example, the apertures of the airflow needle tubes in the prior art are 3.5-4 mm, while the apertures of the first airflow needle tubes 71 and the second airflow needle tubes 81 of the present application are 2.5-3 mm. By setting the first airflow needle tubes 71 and the second airflow needle tubes 81 in such sizes, multiple first airflow needle tubes 71 or second airflow needle tubes 81 can be arranged closely when staggered in a double-row form, and the area not covered by hot air can be minimized to the greatest extent.

[0035] Through the above technical scheme, in the process of hot air welding of the double-chamber air storage cylinder using the airflow needle tube, the uncovered area at the intersection of the hot air blown out by adjacent airflow needle holes has been significantly reduced compared with the prior art, thereby achieving more comprehensive coverage of the weld ribs. This improvement ensures that the hot air can act more effectively on the welding area, thereby significantly improving the structural strength after welding.

[0036] like Figure 1 and Figure 2 As shown, in one embodiment of the utility model, the surface of the heating panel 1 is detachably connected to the first airflow guide ring 3 and the second airflow guide ring 4 near the large cavity airflow needle tube group 8, and the large cavity airflow needle tube group 8 is located between the first airflow guide ring 3 and the second airflow guide ring 4, and the surface of the heating panel 1 is detachably connected to the third airflow guide ring 5 and the fourth airflow guide ring 6 near the small cavity airflow needle tube group 7, and the small cavity airflow needle tube group 7 is located between the third airflow guide ring 5 and the fourth airflow guide ring 6, and the heights of the first airflow guide ring 3, the second airflow guide ring 4, the third airflow guide ring 5 and the fourth airflow guide ring 6 are all the same, and are 2-5mm larger than the lengths of the first airflow needle tube 71 and the second airflow needle tube 81.

[0037] In this embodiment, the large-cavity airflow needle tube group 8 is arranged between the first airflow guide ring 3 and the second airflow guide ring 4, and the small-cavity airflow needle tube group 7 is arranged between the third airflow guide ring 5 and the fourth airflow guide ring 6. When the hot air is blown out through the large-cavity airflow needle tube group 8 and the small-cavity airflow needle tube group 7, the hot air is guided by the guide annular space formed between the first airflow guide ring 3 and the second airflow guide ring 4 or the third airflow guide ring 5 and the fourth airflow guide ring 6, so that the hot air has a more concentrated blowing effect, thereby improving the welding efficiency of the airflow needle tube group structure for hot air welding of the double-cavity air storage cylinder.

[0038] Preferably, a plurality of first mounting feet 9 are provided on the outer side of the first airflow guide ring 3, a plurality of second mounting feet 10 are provided on the outer side of the second airflow guide ring 4, a plurality of third mounting feet 11 are provided on the outer side of the third airflow guide ring 5, and a plurality of fourth mounting feet 12 are provided on the outer side of the fourth airflow guide ring 6. Fixing holes are provided on the surfaces of the first mounting foot 9, the second mounting foot 10, the third mounting foot 11 and the fourth mounting foot 12. In addition, a plurality of fixing threaded holes corresponding to the fixing holes are provided on the surface of the heating panel 1, so that the welding workers can detachably fix the first mounting foot 9, the second mounting foot 10, the third mounting foot 11 and the fourth mounting foot 12 to the surface of the heating panel 1 by tightening bolts, fixing holes and fixing threaded holes.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-chamber gas storage cylinder hot air welding air flow needle tube group structure, comprising a heating panel (1), and the surface of the heating panel (1) is provided with an air flow focusing ring (2), characterized in that: The surface of the heating panel (1) is provided with a large-cavity airflow needle tube group (8) and a small-cavity airflow needle tube group (7), both of which are circular, and the small-cavity airflow needle tube group (7) is placed inside the large-cavity airflow needle tube group (8); The large cavity airflow needle tube group (8) is composed of a plurality of second airflow needle tubes (81), and the plurality of second airflow needle tubes (81) are divided into two rows and distributed on the surface of the heating panel (1) in an interlaced manner; The small cavity airflow needle tube group (7) is composed of a plurality of first airflow needle tubes (71), and the plurality of first airflow needle tubes (71) are divided into two rows and are distributed on the surface of the heating panel (1) in an interlaced manner; A plurality of ventilation holes are provided on the surface of the heating panel (1) near the small cavity airflow needle tube group (7) and the large cavity airflow needle tube group (8), and these ventilation holes are respectively connected to a plurality of second airflow needle tubes (81) and a plurality of first airflow needle tubes (71).

2. The double-chamber gas storage cylinder hot gas welding air flow needle tube assembly structure according to claim 1, characterized in that: The aperture and length of the first airflow needle tube (71) and the second airflow needle tube (81) are the same, and the aperture of the first airflow needle tube (71) and the second airflow needle tube (81) is 2.5-3 mm.

3. The double-chamber gas storage cylinder hot air welding air flow needle tube assembly structure according to claim 1, characterized in that: The surface of the heating panel (1) is detachably connected to a first airflow guide ring (3) and a second airflow guide ring (4) at a position close to the large-cavity airflow needle tube group (8), and the large-cavity airflow needle tube group (8) is located between the first airflow guide ring (3) and the second airflow guide ring (4); the surface of the heating panel (1) is detachably connected to a third airflow guide ring (5) and a fourth airflow guide ring (6) at a position close to the small-cavity airflow needle tube group (7), and the small-cavity airflow needle tube group (7) is located between the third airflow guide ring (5) and the fourth airflow guide ring (6).

4. The double-chamber gas storage cylinder hot air welding air flow needle tube assembly structure according to claim 3, characterized in that: A plurality of first mounting feet (9) are arranged on the outer side of the first airflow guide ring (3), a plurality of second mounting feet (10) are arranged on the outer side of the second airflow guide ring (4), a plurality of third mounting feet (11) are arranged on the outer side of the third airflow guide ring (5), a plurality of fourth mounting feet (12) are arranged on the outer side of the fourth airflow guide ring (6), and surfaces of the first mounting feet (9), the second mounting feet (10), the third mounting feet (11) and the fourth mounting feet (12) are all provided with fixing holes.

5. The double-chamber gas storage cylinder hot gas welding air flow needle tube assembly structure according to claim 4, characterized in that: The heights of the first airflow guide ring (3), the second airflow guide ring (4), the third airflow guide ring (5) and the fourth airflow guide ring (6) are all the same and are 2-5 mm greater than the lengths of the first airflow needle tube (71) and the second airflow needle tube (81).

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