Composite material single-cavity air reservoir

Abstract

The utility model discloses a composite material single-cavity air cylinder which comprises an air storage inner container made of polymer plastic materials, a glass fiber layer is wound outside the air storage inner container, and the air storage inner container is formed by splicing an end shell A, a middle shell and an end shell B in a hot melting mode, a plurality of air inlet and outlet quick-plug connectors integrally formed with the end shell A in an injection mode are arranged in the end, away from the middle shell, of the end shell A, an air discharging connector integrally formed with the end shell B in an injection mode can be arranged in the end, away from the middle shell, of the end shell B, and a liquid discharging connector integrally formed with the middle shell in an injection mode is arranged at the bottom of the middle shell. According to the composite material single-cavity air cylinder, the connecting strength of all the connectors can be guaranteed, the connectors are prevented from loosening or rotating in the using process, the air cylinder has good air tightness, and the pressure resistance can be improved.

Description

Technical Field

[0001] This utility model relates to a composite material single-cavity air reservoir, belonging to the technical field of air reservoirs for automotive braking systems. Background Technology

[0002] As national emission standards become increasingly stringent, automakers are placing new demands on overall vehicle quality; lightweighting of the entire vehicle is inseparable from the lightweighting of its various systems and components. Traditional metal air tanks, due to their weight, complex manufacturing processes, and poor product cleanliness, can no longer meet the requirements for vehicle lightweighting. Therefore, composite material air tanks with lightweight advantages have emerged.

[0003] Existing composite single-cavity gas storage cylinders still have the following technical problems, based on practical experience:

[0004] The joints on gas cylinders are usually installed after the cylinder body is formed, using methods such as welding, threaded connections, or hot-melt pressing. This installation method is difficult to withstand external torque or rotational forces and has limited durability. The joints are prone to loosening or rotation, affecting the airtightness of the gas cylinder. In addition, due to the limitations of the gas cylinder's own structural design, its pressure resistance has considerable room for improvement.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] This invention addresses the shortcomings of the prior art by providing a composite material single-cavity air storage cylinder, which can ensure the connection strength of each joint, prevent loosening or rotation during use, give the air storage cylinder good airtightness, and also improve its pressure resistance.

[0007] To solve the above technical problems, the present invention adopts the following technical solution:

[0008] The composite material single-cavity gas storage cylinder includes a gas storage inner liner made of polymer plastic, and a glass fiber layer wrapped around the outside of the gas storage inner liner. The glass fiber layer is made of thermosetting fiber. The gas storage inner liner is formed by hot-melt splicing together an end shell A, a middle shell and an end shell B arranged in sequence.

[0009] The end housing A, located away from the middle housing, is provided with multiple quick-connect inlet and outlet air connectors integrally injection molded therewith. The end housing B, located away from the middle housing, may be provided with an outlet air connector integrally injection molded therewith. The bottom of the middle housing is provided with a drain air connector integrally injection molded therewith.

[0010] Furthermore, the inner walls of both end housing A and end housing B are provided with multiple circumferentially distributed ribs and multiple annular reinforcing ribs with progressively increasing diameters.

[0011] Furthermore, the stiffening plates and annular reinforcing ribs are arranged in an intersecting manner, and the stiffening plates, annular reinforcing ribs and end shells are integrally injection molded.

[0012] Furthermore, the middle shell is connected to the end shells A and B by hot-melt welding, forming a sealed gas storage cavity between the end shells A, the middle shell, and the end shells B.

[0013] Furthermore, the number of quick-connect air inlets and outlets is four, and the four quick-connect air inlets and outlets are arranged in a square.

[0014] Furthermore, the inlet and outlet quick-connect fittings are hexagonal in structure, with threaded holes inside the hexagonal structure, and each edge of the hexagonal structure has at least one filling groove A that can accommodate plastic.

[0015] Furthermore, the venting connector and the drain connector have the same structure, both being hexagonal structures. The hexagonal structure has a threaded hole inside and an annular filling groove B that can accommodate plastic.

[0016] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0017] The gas storage cylinder of this utility model is made of a gas storage inner liner made of high-molecular plastic material and an outer glass fiber layer. By setting ribs and annular reinforcing ribs in the end shell, the pressure resistance of the gas storage inner liner can be significantly improved.

[0018] The quick-connect fittings for air inlet and outlet, air release fittings, and liquid drain fittings in this utility model all adopt a hexagonal structure. After the hexagonal structure is solidified with the molten plastic of the inner liner, it forms a mechanical interlock, which can effectively resist external torque or rotational force. By setting filling grooves on the edges, the bonding force between the fitting and the molten plastic is improved, the connection strength is increased, and loosening or rotation during use is prevented, so that the air storage cylinder has good airtightness.

[0019] The quick-connector for air inlet and outlet in this invention is changed from the dispersed arrangement in the prior art to integration at the end, which facilitates installation, is beneficial for the winding and molding of the outer surface fibers, and increases pressure resistance.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural view of the present invention;

[0022] Figure 2 This is a three-dimensional view of the structure of this utility model in another direction;

[0023] Figure 3 This is a structural cross-sectional view of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of end housing A;

[0025] Figure 5 This is a schematic diagram of the internal structure of end housing B;

[0026] Figure 6 This is a three-dimensional structural diagram of the quick-connect air inlet / outlet connector;

[0027] Figure 7 This is a three-dimensional view of the quick-connect air inlet / outlet connector in another direction;

[0028] Figure 8 This is a three-dimensional structural diagram of the drain connector.

[0029] In the figure, 1-middle shell, 2-end shell A, 3-end shell B, 4-ring reinforcing rib, 5-stiffening plate, 6-inlet / outlet quick connector, 7-vent connector, 8-drain connector, 9-filling tank A, 10-filling tank B. Detailed Implementation

[0030] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0031] like Figures 1-8 As shown in the figure, this utility model provides a composite material single-cavity gas storage cylinder, including a gas storage liner made of high molecular plastic material, and a glass fiber layer wrapped around the outside of the gas storage liner, the glass fiber layer being made of thermosetting fiber.

[0032] The gas storage liner is formed by hot-melt splicing of the end shell A2, the middle shell 1 and the end shell B3 arranged in sequence. The middle shell 1 is connected to the end shell A2 and the end shell B3 by hot-melt welding, and a sealed gas storage cavity is formed between the end shell A2, the middle shell 1 and the end shell B3.

[0033] Both end housing A2 and end housing B3 have multiple circumferentially distributed ribs 5 and multiple annular reinforcing ribs 4 with progressively increasing diameters on their inner walls. The ribs 5 and annular reinforcing ribs 4 are arranged intersectingly, and the ribs 5, annular reinforcing ribs 4, and end housings are integrally injection molded. The pressure resistance of the gas storage liner is improved by providing ribs 5 and annular reinforcing ribs 4 on the inner walls of the end housings.

[0034] The end housing A2, located away from the middle housing 1, is provided with a plurality of quick-connect air inlet and outlet connectors 6 integrally injection molded therewith.

[0035] The number of quick-connect fittings 6 for air inlet and outlet is preferably four, and the four quick-connect fittings 6 for air inlet and outlet are arranged in a square. The quick-connect fittings 6 for air inlet and outlet are hexagonal structures, and the interior of the hexagonal structure is provided with threaded holes for connecting air inlet and outlet pipelines. Each edge of the hexagonal structure is provided with at least one filling groove A9 that can accommodate plastic.

[0036] The end housing B3, located away from the middle housing 1, may be provided with an integrally injection-molded vent connector 7, which can be connected to an external pipeline for tire inflation. Alternatively, the end housing B3 may not have a vent connector 7.

[0037] The bottom of the central housing 1 is provided with a drain connector 8 integrally injection molded therewith.

[0038] The venting connector 7 and the drain connector 8 have the same structure, both being hexagonal structures. The hexagonal structure has a threaded hole inside, which is used for the installation of pipes or drain valves. The hexagonal structure also has an annular filling groove B10 that can accommodate plastic.

[0039] The quick-connector for air inlet / outlet 6, the venting connector 7, and the drain connector 8 are all made of metal, such as steel, aluminum, or copper.

[0040] The specific working principle of this utility model is as follows:

[0041] The single-chamber gas cylinder of this invention is formed by a composite molding of a gas storage inner liner made of high-molecular plastic material and an outer glass fiber layer. By setting ribs and annular reinforcing ribs in the end shell, the pressure resistance of the gas storage inner liner can be significantly improved.

[0042] In this invention, the quick-connect fittings for air inlet and outlet, the air venting fitting, and the liquid drain fitting are placed in advance in the molding mold of the molten plastic of the inner liner. During the molding process, the molten plastic wraps around each fitting, achieving integral injection molding and ensuring a firm connection between the fittings and the inner liner.

[0043] The quick-connect fittings for air inlet and outlet, venting fittings, and drain fittings in this invention all adopt a hexagonal structure. After the hexagonal structure and the inner liner molten plastic are solidified, they form a mechanical interlock, which can effectively resist external torque or rotational force. By setting filling grooves on the edges, the bonding force between the fitting and the molten plastic is improved, the connection strength is increased, and loosening or rotation during use is prevented, thereby improving its durability.

[0044] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A composite single chamber air reservoir characterised in that: The gas storage inner container is made of high polymer plastic material, and a glass fiber layer is wound outside the gas storage inner container, the glass fiber layer is made of thermosetting fiber, and the gas storage inner container is formed by hot melting and splicing of the end shell A (2), the middle shell (1) and the end shell B (3) arranged in sequence; A plurality of gas inlet and outlet quick connectors (6) are integrally injection molded on the end of the end shell A (2) away from the middle shell (1), the end shell B (3) can be provided with a gas discharge connector (7) integrally injection molded thereon at the end away from the middle shell (1), and the middle shell (1) is provided with a liquid discharge connector (8) integrally injection molded thereon at the bottom.

2. The composite single chamber air reservoir of claim 1, wherein: The inner walls of the end shell A (2) and the end shell B (3) are provided with a plurality of circumferentially distributed rib plates (5) and a plurality of annular reinforcing ribs (4) with increasing diameters.

3. The composite single chamber air reservoir of claim 2, wherein: The rib plates (5) and the annular reinforcing ribs (4) are arranged in cross, and the rib plates (5), the annular reinforcing ribs (4) and the end shells are integrally injection molded.

4. The composite single chamber air reservoir of claim 1, wherein: The middle shell (1) is connected to the end shell A (2) and the end shell B (3) by hot melting welding, and a closed gas storage cavity is formed between the end shell A (2), the middle shell (1) and the end shell B (3).

5. The composite single chamber air reservoir of claim 1, wherein: The number of the gas inlet and outlet quick connectors (6) is four, and the four gas inlet and outlet quick connectors (6) are arranged in a square shape.

6. The composite single chamber air reservoir of claim 1, wherein: The gas inlet and outlet quick connector (6) is a six-rib structure, and a threaded hole is arranged in the six-rib structure.

7. The composite single chamber air reservoir of claim 6, wherein: At least one plastic-containing filling groove A (9) is arranged on each rib of the six-rib structure.

8. The composite single chamber air reservoir of claim 1, wherein: The gas discharge connector (7) and the liquid discharge connector (8) are the same structure, both of which are six-rib structures, and a threaded hole is arranged in the six-rib structure.

9. The composite single chamber air reservoir of claim 8, wherein: The six-rib structure is provided with a plastic-containing filling groove B (10) of annular structure.

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