Conformal pressure ring-shaped container

Abstract

The utility model relates to a kind of conformal pressure ring-shaped containers, including ring-shaped container and valve seat, ring-shaped container is conformal with vehicle body framework structure, annular cavity inner container is arranged in the cavity of ring-shaped container, by ring-shaped container and vehicle body conformal design: ring-shaped container adopts variable cross section or L shape annular structure, and closely adhere to vehicle body framework and spare tire fixing device or car head space, improve installation stability and space adaptability;Annular cavity inner container is sequentially provided with mechanical reinforcement layer and protective layer outside, which can improve impact resistance, structural stability and ultraviolet resistance, oil contamination erosion ability;Valve seat is set separately with ring-shaped container, which is convenient for independent maintenance;Valve seat is combined with inner container by welding, to ensure sealing property;Valve seat is set at the section of small radius of ring-shaped container, which can reduce radial and axial stress concentration, improve connection point firmness and safety.

Description

Technical Field

[0001] This utility model belongs to the field of pressure vessel technology, specifically relating to a conformal pressure annular container. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] With economic development, the performance requirements for containers are becoming increasingly stringent, especially in the aerospace and automotive fields, where strict requirements exist for space utilization and container safety. Currently, containers for storing gases and liquids are mostly bottle-shaped or spherical (such as conventional high-pressure gas cylinders). However, in specific applications such as vehicles and spacecraft, traditional containers struggle to fully utilize the irregular spaces within the vehicle frame or equipment. For example, non-standard spaces exist in areas such as the spare tire area of ​​a car or the front of a heavy truck. Conventional containers, with their fixed shapes, cannot conform to the curved surfaces or irregularly shaped spaces (such as L-shaped areas) of the vehicle frame, leading to wasted space. Furthermore, valve seats are typically exposed on the container surface; in collisions, stress concentration at the valve seat-container junction can cause seal failure, leading to leakage risks. This can easily result in valve damage and media leakage. Utility Model Content

[0004] The purpose of this invention is to provide a conformal pressure annular container that can at least solve one of the above-mentioned technical problems.

[0005] To achieve the above objectives, an embodiment of this utility model provides a conformal pressure annular container, including an annular container and a valve seat. The annular container is conformally fitted to the vehicle body frame structure. An annular inner liner is disposed inside the cavity of the annular container. The valve seat is disposed on the inner side of the annular container and includes a valve seat connected to the annular inner liner. A shoulder is provided at the connection between the valve seat and the annular container. A mechanical reinforcement layer and a protective layer are sequentially disposed from the inside to the outside between the annular inner liner and the inner wall surface of the annular container. The mechanical reinforcement layer is wrapped around the outside of the annular inner liner.

[0006] Furthermore, the valve seat is a hollow cylindrical structure, with an annular retaining ring on the outer side and a tapered threaded hole on the inner side, the apex of which faces the inner liner of the annular cavity.

[0007] Furthermore, the annular retaining ring restricts the slippage of the mechanical reinforcement layer.

[0008] Furthermore, the valve seat and the annular container are separate structures.

[0009] Furthermore, the shoulder is fitted to the inner wall of the annular container.

[0010] Furthermore, the annular container is a ring structure with a variable cross-section, and the annular container is mounted on the spare tire fixing device on the vehicle body.

[0011] Furthermore, the valve seat is located inside the annular container, at a position with a small cross-sectional diameter.

[0012] Furthermore, the annular container is an L-shaped ring structure, and the annular container is located at the front of the vehicle body.

[0013] Furthermore, both the mechanical reinforcement layer and the protective layer are made of fibers and resins.

[0014] Furthermore, the annular container is made of stainless steel.

[0015] The beneficial effects of the above technical solutions are as follows: This utility model features a ring-shaped container designed to conform to the vehicle body: the ring-shaped container adopts a variable cross-section or L-shaped ring structure, which fits tightly with the vehicle frame and spare tire fixing device or the front space of the vehicle, improving installation stability and spatial adaptability; a mechanical reinforcement layer and a protective layer are sequentially arranged on the inner and outer sides of the ring cavity, which can improve impact resistance, structural stability and resistance to ultraviolet rays and oil stains.

[0016] The valve seat is fixedly connected to the inner liner to ensure a tight seal; the valve seat is located at the small radius section of the annular container, which can reduce radial and axial stress concentration and improve the strength and safety of the connection point. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0018] Figure 1 This is a front view of the annular structure with variable cross-section in an embodiment of this utility model; Figure 2 As an embodiment of this utility model Figure 1 A magnified cross-sectional view of the valve seat at point A; Figure 3 This is a sectional view of the valve seat in an embodiment of this utility model; Figure 4 This is a three-dimensional schematic diagram of the longitudinal valve seat in an embodiment of this utility model; Figure 5 This is a schematic diagram of the L-shaped ring structure installation at the front of the vehicle in this embodiment of the present invention; Figure 6 This is a schematic diagram of the installation of the variable cross-section ring structure at the rear of the vehicle in an embodiment of this utility model.

[0019] In the diagram, 1 is the annular container; 2 is the valve seat; 3 is the valve seat; 4 is the protective layer; 5 is the mechanical reinforcement layer; 6 is the annular cavity liner; 7 is the shoulder; and 8 is the annular retaining ring. Detailed Implementation

[0020] like Figures 1 to 5 As shown, this embodiment provides a conformal pressure annular container, including an annular container 1 and a valve seat 2.

[0021] The annular container 1 is conformally fitted to the vehicle frame structure to ensure a tight fit. The annular container 1 is made entirely of stainless steel to improve corrosion resistance and structural stability.

[0022] Specifically, such as Figure 2 As shown, the annular container 1 has an annular inner liner 6 inside its cavity for containing fluid or media. Between the annular inner liner 6 and the inner wall of the annular container 1, a mechanical reinforcement layer 5 and a protective layer 4 are arranged sequentially from the inside out. The mechanical reinforcement layer 5 is directly wound around the outside of the annular inner liner 6 and is made of high-strength fiber and resin composite material, providing core structural support and impact resistance. The protective layer 4 covers the mechanical reinforcement layer 5 and is also made of high-strength fiber and resin composite material, mainly providing protection against ultraviolet radiation, oil erosion, and external wear. In addition, the valve seat 3 is firmly combined with the inner liner. The valve seat 2 is pre-embedded in the inner liner mold, and plastic is injected into the inner liner or it is rotomolded to ensure sealing and integrity. The high-strength fiber and resin composite material mentioned above is a composite material of any combination of carbon fiber and epoxy resin, or aramid fiber and epoxy resin.

[0023] like Figure 1 and Figure 2 As shown, valve seat 2 is located inside the annular container 1. Valve seat 2 and annular container 1 adopt a split structure design, which facilitates independent installation and maintenance. Valve seat 2 includes valve seat 3, which is directly connected to the inner liner 6 of the annular cavity to form a stable support point.

[0024] like Figure 2 and Figure 3 As shown, the valve seat 3 has a hollow cylindrical structure. An annular retaining ring 8 is provided on the outer side of the valve seat 3. The annular retaining ring 8, through its rigid annular design, effectively restricts the slippage of the mechanical reinforcement layer 5, preventing axial displacement during dynamic operation. A tapered threaded hole is provided on the inner side of the valve seat 3. The apex of the threaded hole is precisely aligned with the inner liner 6 of the annular cavity. This design enhances the tightness of the threaded connection, facilitates cooperation with other components, and improves the overall sealing effect and reliability.

[0025] like Figure 4As shown, a shoulder 7 structure is provided at the connection between the valve seat 3 and the annular container 1. The shoulder 7 is tightly fitted to the inner wall of the annular container 1 to ensure that the valve seat 2 is firmly positioned inside the container and to prevent displacement or loosening. like Figure 1 As shown, the annular container 1 is a ring-shaped structure with a variable cross-section, the shape of which changes in different parts to adapt to the installation requirements of the spare tire fixing device on the vehicle body. The annular container 1 is installed on the spare tire fixing device on the vehicle body to ensure the stability and functionality of the overall structure. The valve seat 2 is arranged in the inner region of the annular container 1, specifically in the part with the smaller cross-sectional diameter, to optimize stress distribution.

[0026] Specifically, the formula for calculating the radial stress distribution based on the annular container 1.

[0027] And axial stress formula

[0028] in: Represents the internal pressure of the annular container. Represents the radius of the cross-section of the annular container. This represents the distance from the center of the annular container to the center of the cross-section. Represents the thickness of the toroidal container. Represents the angle of the parent circle. The angular shape representing the large torus.

[0029] A smaller cross-sectional radius r significantly reduces radial and axial stress values. Therefore, placing the valve seat 2 at a cross-section with a smaller radius results in better stress distribution and a stronger connection point, thereby improving overall safety and reliability. Secondly, when the valve seat 2 is located inside the annular cavity, the cavity itself acts as a protective barrier. In the event of an accidental collision, the impact force acts first on the annular cavity, effectively buffering and preventing direct damage to the valve body, ensuring the integrity of critical components.

[0030] like Figure 5 As shown, the annular container 1 is designed as an L-shaped ring structure. The L-shaped ring structure is set at the front of the vehicle body, usually in the central area of ​​the front end, to meet the space installation requirements of the front of the vehicle and to enhance the stability of the overall structure.

[0031] The working principle of this utility model: The annular container 1 adopts a variable cross-section annular structure that matches the vehicle frame. It is made of stainless steel to ensure installation conformity and corrosion resistance (the material is not limited to stainless steel; lightweight and high-strength materials such as plastic and composite materials can be selected according to actual working conditions). The annular cavity inner liner 6 contains the corresponding medium. Between the annular cavity inner liner 6 and the inner wall of the annular container 1, from the inside out, there are mechanical reinforcement layer 5 and protective layer 4, forming functional layers. The valve seat 2 is independently fixed to the inner liner by welding. An annular retaining ring 8 is provided on the outside to mechanically restrict the mechanical reinforcement layer 5 and prevent the mechanical reinforcement layer 5 from slipping. The tapered threaded hole (with the cone apex facing the inner liner) provided on the inner side of the valve seat 2 improves the sealing reliability. The valve seat 2 is located at the small radius section of the annular container 1, where the stress concentration at the low connection point is minimized.

[0032] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A conformal pressure annular container, characterized in that, The device includes an annular container and a valve seat. The annular container is conformally shaped to the vehicle body frame structure. An annular inner liner is disposed inside the cavity of the annular container. The valve seat is disposed inside the annular container and includes a valve seat connected to the annular inner liner. A shoulder is provided at the connection between the valve seat and the annular container. A mechanical reinforcement layer and a protective layer are disposed sequentially from the inside to the outside between the annular inner liner and the inner wall surface of the annular container. The mechanical reinforcement layer is wrapped around the outside of the annular inner liner.

2. A conformal pressure annular container according to claim 1, characterized in that, The valve seat is a hollow cylindrical structure. An annular retaining ring is provided on the outer side of the valve seat, and a tapered threaded hole is provided on the inner side of the valve seat. The cone apex of the threaded hole faces the inner liner of the annular cavity.

3. A conformal pressure annular container according to claim 2, characterized in that, The annular retaining ring restricts the slippage of the mechanical reinforcement layer.

4. A conformal pressure annular container according to claim 1, characterized in that, The valve seat and the annular container are separate structures.

5. A conformal pressure annular container according to claim 1, characterized in that, The shoulder is fitted to the inner wall of the annular container.

6. A conformal pressure annular container according to claim 1, characterized in that, The annular container is a ring-shaped structure with a variable cross-section, and it is mounted on the spare tire fixing device on the vehicle body.

7. A conformal pressure annular container according to claim 6, characterized in that, The valve seat is located inside the annular container, at the part with the smallest cross-sectional diameter.

8. A conformal pressure annular container according to claim 1, characterized in that, The annular container is an L-shaped ring structure and is located at the front of the vehicle body.

9. A conformal pressure annular container according to claim 1, characterized in that, Both the mechanical reinforcement layer and the protective layer are made of fibers and resins.

10. A conformal pressure annular container according to claim 1, characterized in that, The annular container is made of stainless steel.

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