Hydrogen fuel automobile hydrogen filling port mounting structure

Abstract

The utility model provides a kind of hydrogen fuel automobile hydrogen filling mouth mounting structure, including hydrogen filling round pipe, hydrogen filling round pipe top end is equipped with mounting ring, mounting ring top surface is equipped with threaded connecting ring, several character-shaped covers are equipped on threaded connecting ring, the top surface of several character-shaped cover is equipped with connecting plate, connecting plate is equipped with several hinged grooves, each hinged groove is equipped with matched locking component between hydrogen filling round pipe;The inner top surface of several character-shaped cover is equipped with internal thread sleeve, internal thread sleeve is equipped with external thread sleeve, external thread sleeve is equipped with sealing plunger, sealing plunger is equipped on the inner top surface of internal thread sleeve, tapered ring is equipped on internal thread sleeve, L-shaped annular plate is equipped between the bottom end of external thread sleeve and hydrogen filling round pipe, first annular tube air bag is equipped between L-shaped annular plate and hydrogen filling round pipe, tapered ring is contacted with first annular tube air bag.The utility model is matched by the cooperation between each structure, not only effectively increase the sealing performance of automobile hydrogen filling mouth mounting, and simple operation, it is easy to promote.

Description

Technical Field

[0001] This utility model relates to the field of automotive engineering technology, specifically to an installation structure for a hydrogen refueling port on a hydrogen fuel cell vehicle. Background Technology

[0002] The automotive industry is in the process of transitioning from traditional internal combustion engines to new energy vehicles. Currently, new energy vehicles are mainly pure electric vehicles. However, the range and charging time of pure electric vehicles limit their promotion and application. Hydrogen fuel cell vehicles have good performance in these aspects. It only takes 3 to 5 minutes to refuel with hydrogen and the range can reach 800 kilometers.

[0003] Because hydrogen is a highly flammable gas with a wide explosion limit (4%-75%), and has a low density and fast diffusion speed, the hydrogen refueling port of a hydrogen fuel cell vehicle needs to be sealed after refueling. Currently, the sealing of hydrogen refueling ports on the market is generally simple and has poor sealing performance, which can easily cause hydrogen to leak into the surrounding environment later, causing certain losses and reducing the practicality of the overall device.

[0004] Therefore, based on the above problems, the present invention provides a hydrogen refueling port installation structure for hydrogen fuel cell vehicles. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a hydrogen refueling port installation structure for hydrogen fuel cell vehicles, solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A hydrogen refueling port installation structure for a hydrogen fuel cell vehicle includes a hydrogen refueling pipe. An installation ring is fixedly connected to the top end of the hydrogen refueling pipe. A threaded connecting ring is fixedly provided on the top surface of the installation ring. A Z-shaped cover is threaded onto the threaded connecting ring. A connecting plate is fixedly provided on the top surface of the Z-shaped cover. A plurality of hinge slots are provided on the connecting plate. Each hinge slot is provided with a locking component that engages with the hydrogen refueling pipe.

[0008] An internally threaded sleeve is fixedly provided on the inner top surface of the zigzag cover. An externally threaded sleeve is provided on the internal thread of the internally threaded sleeve. A sealing plunger is provided inside the externally threaded sleeve. The sealing plunger is fixedly provided on the inner top surface of the internally threaded sleeve. A conical ring is fixedly sleeved on the internally threaded sleeve. An L-shaped annular plate is fixed between the bottom end of the externally threaded sleeve and the hydrogenation tube. A first annular tube gasbag is provided between the L-shaped annular plate and the hydrogenation tube. The conical ring is in contact with the first annular tube gasbag.

[0009] Furthermore, the locking component includes an L-shaped hinge plate and a rectangular iron frame. One end of the L-shaped hinge plate is movably hinged in the hinge groove via a pin, and the other end of the L-shaped hinge plate is fixed with a magnetic block. The rectangular iron frame is fixed on the outer wall of the hydrogenation tube, and the magnetic block is attracted to the rectangular iron frame.

[0010] Furthermore, a second annular tube gasbag is provided between the internal threaded sleeve and the hydrogenation round tube, and the second annular tube gasbag is fixedly installed on the inner top surface of the zigzag cover.

[0011] Furthermore, the interior of the sealing plunger is provided with several weight-reducing grooves.

[0012] Furthermore, the bottom end of the hydrogen refueling pipe is connected to and fixed with an annular circular plate, and a plurality of mounting bolts are evenly installed on the annular circular plate, each of which is connected to the hydrogen fuel cell vehicle.

[0013] Furthermore, an annular groove is formed on the bottom surface of the annular plate, and a sealing ring is installed in the annular groove.

[0014] This utility model provides a hydrogen refueling port installation structure for hydrogen fuel cell vehicles. Compared with the prior art, it has the following advantages:

[0015] The first annular tube airbag of this utility model is specifically designed to seal the gap between the inner threaded sleeve and the outer threaded sleeve. The second annular tube airbag blocks the external passage between the zig-shaped cover and the threaded connecting ring. The bottom sealing ring seals the connection between the hydrogen refueling tube and the car. The triple sealing structure greatly reduces the risk of hydrogen leakage and helps to increase the practicality of the overall device. At the same time, the sealing plunger is inserted into the outer threaded sleeve to form a physical barrier. Combined with the elastic seal of the airbag, the sealing reliability is further improved.

[0016] This utility model's threaded connection (a zigzag cover and a threaded connecting ring, an internal threaded sleeve and an external threaded sleeve) provides basic fixing force. In conjunction with the locking component, it achieves secondary reinforcement through magnetic attraction and hinge structure, effectively resisting vibration and bumps during vehicle operation and preventing loosening of the connection. The magnetic attraction between the L-shaped hinge plate and the rectangular iron frame makes operation simple and the fixation reliable, and reinforcement can be completed without additional tools. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This diagram shows a front-view three-dimensional connection schematic of the overall structure of this utility model;

[0019] Figure 2 This invention presents a three-dimensional connection diagram of its front cross-sectional structure.

[0020] Figure 3 This diagram shows a three-dimensional disassembled structural diagram of the overall structure of this utility model;

[0021] Figure 4 This utility model is shown Figure 2 A magnified structural diagram at point A;

[0022] The figure shows: 1. Connecting plate; 2. Hinge groove; 3. L-shaped hinge plate; 4. Rectangular iron frame; 5. Hydrogenation tube; 6. Annular plate; 7. Mounting bolt; 8. Sealing ring; 9. L-shaped annular plate; 10. First annular tube airbag; 11. Conical ring; 12. Internal threaded sleeve; 13. External threaded sleeve; 14. Sealing plunger; 15. Z-shaped cover; 16. Threaded connecting ring; 17. Mounting ring; 18. Magnetic block; 19. Second annular tube airbag. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example 1

[0025] To address the technical problems in the background section, the following hydrogen refueling port installation structure for hydrogen fuel cell vehicles is provided:

[0026] Combination Figure 1-4 As shown, the present invention provides a hydrogen refueling port installation structure for a hydrogen fuel cell vehicle, including a hydrogen refueling pipe 5. The top end of the hydrogen refueling pipe 5 is connected to and fixedly provided with an installation ring 17. The top surface of the installation ring 17 is fixedly provided with a threaded connecting ring 16. A Z-shaped cover 15 is threadedly fitted on the threaded connecting ring 16. A connecting plate 1 is fixedly provided on the top surface of the Z-shaped cover 15. A plurality of hinge slots 2 are provided on the connecting plate 1. Each hinge slot 2 and the hydrogen refueling pipe 5 are provided with a locking component.

[0027] An internally threaded sleeve 12 is fixedly mounted on the inner top surface of the zigzag cover 15. An externally threaded sleeve 13 is provided on the internal thread of the internally threaded sleeve 12. A sealing plunger 14 is provided inside the externally threaded sleeve 13. Several weight-reducing grooves are opened inside the sealing plunger 14. The sealing plunger 14 is fixedly mounted on the inner top surface of the internally threaded sleeve 12, and a conical ring 11 is fixedly mounted on the internally threaded sleeve 12. An L-shaped annular plate 9 is fixedly mounted between the bottom end of the externally threaded sleeve 13 and the hydrogenation tube 5. A first annular tube gasbag 10 is provided between the L-shaped annular plate 9 and the hydrogenation tube 5. The conical ring 11 is in contact with the first annular tube gasbag 10.

[0028] The locking components include an L-shaped hinge plate 3 and a rectangular iron frame 4. One end of the L-shaped hinge plate 3 is movably hinged in the hinge groove 2 via a pin, and the other end of the L-shaped hinge plate 3 is fixed with a magnetic block 18. The rectangular iron frame 4 is fixed on the outer wall of the hydrogenation tube 5, and the magnetic block 18 is attracted to the rectangular iron frame 4.

[0029] A second annular tube bladder 19 is provided between the internal threaded sleeve 12 and the hydrogenation tube 5. The second annular tube bladder 19 is fixedly installed on the inner top surface of the zigzag cover 15.

[0030] Working principle:

[0031] During installation, align the Z-shaped cover 15 with the threaded connecting ring 16 (the threaded connecting ring 16 is fixed to the mounting ring 17 at the top of the hydrogenation tube 5). By rotating the connecting plate 1, the Z-shaped cover 15 rotates along the thread of the threaded connecting ring 16, achieving initial fitting and fixation. When the Z-shaped cover 15 rotates, the internal threaded sleeve 12 fixed on its inner top surface rotates synchronously, forming a threaded engagement with the external threaded sleeve 13, causing the internal threaded sleeve 12 to gradually slide downwards into the external threaded sleeve 13. At this time, the sealing plunger 1 fixed on the inner top surface of the internal threaded sleeve 12... 4 (with internal weight-reducing grooves for lightweight design) is simultaneously inserted into the external threaded sleeve 13 to achieve initial physical sealing of the core channel of the hydrogenation port. As the internal threaded sleeve 12 moves downward, the conical ring 11 fixed on its outer side gradually approaches the L-shaped annular plate 9 at the bottom of the external threaded sleeve 13. As the threads tighten, the conical ring 11, the L-shaped annular plate 9, and the inner wall of the hydrogenation tube 5 together compress the first annular tube bladder 10 between them, causing the first annular tube bladder 10 to undergo elastic deformation and tightly fill the internal threaded sleeve 12 and the external threaded sleeve 13. The gap between them forms the first sealing barrier, preventing hydrogen from leaking out. During the tightening of the threads between the U-shaped cover 15 and the threaded connecting ring 16, the second annular gas bladder 19 between the inner top surface of the U-shaped cover 15 and the hydrogen filling pipe 5 is compressed, tightly fitting the contact area between the threaded connecting ring 16 and the U-shaped cover 15, forming the second sealing barrier. This prevents outside air and moisture from entering the hydrogen filling port and further blocks the path of hydrogen leakage, improving the stability of the installation structure (especially in response to vibrations during vehicle operation). After the main body is sealed, the L-shaped hinge plate 3 in the hinge groove 2 is used for auxiliary locking: rotate the L-shaped hinge plate 3 around the pin shaft (one end is hinged to the hinge groove 2 of the connecting plate 1, and the other end is fixed with the magnetic block 18) so that the magnetic block 18 is aligned with the rectangular iron frame 4 on the outer wall of the hydrogenation tube 5; the magnetic block 18 is attracted and fixed to the rectangular iron frame 4 (iron), and the Z-shaped cover 15 and the hydrogenation tube 5 are further tightened and fixed by multiple evenly distributed locking components (set along the circumference of the connecting plate 1) to prevent the threaded connection from loosening due to vibration.

[0032] Example 2

[0033] like Figure 1-4 As shown, based on the above embodiments, this embodiment further provides the following:

[0034] The bottom end of the hydrogen refueling pipe 5 is connected to and fixed with an annular circular plate 6. Several mounting bolts 7 are evenly installed on the annular circular plate 6, and each mounting bolt 7 is connected to the hydrogen fuel cell vehicle. An annular groove is formed on the bottom surface of the annular circular plate 6, and a sealing ring 8 is installed in the annular groove.

[0035] Based on Embodiment 1, if it is necessary to further enhance the practicality of the overall device, the operation is as follows:

[0036] Because the bottom surface of the annular plate 6 has an annular groove, a sealing ring 8 is installed in the annular groove, and several mounting bolts 7 are evenly installed on the annular plate 6, each mounting bolt 7 is connected to the hydrogen fuel cell vehicle. This not only facilitates the installation and disassembly of the hydrogen refueling port installation structure of the hydrogen fuel cell vehicle, but also effectively increases its sealing performance through the setting of the sealing ring 8, further increasing the practicality of the overall device.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hydrogen refueling port installation structure for a hydrogen fuel cell vehicle, characterized in that: The device includes a hydrogenation tube (5), with a mounting ring (17) fixedly connected to the top end of the hydrogenation tube (5). A threaded connecting ring (16) is fixedly provided on the top surface of the mounting ring (17). A Z-shaped cover (15) is threaded onto the threaded connecting ring (16). A connecting plate (1) is fixedly provided on the top surface of the Z-shaped cover (15). A plurality of hinge slots (2) are provided on the connecting plate (1). Each hinge slot (2) is provided with a locking component between it and the hydrogenation tube (5). An internally threaded sleeve (12) is fixedly provided on the inner top surface of the zigzag cover (15). An externally threaded sleeve (13) is provided on the internal thread of the internally threaded sleeve (12). A sealing plunger (14) is provided inside the externally threaded sleeve (13). The sealing plunger (14) is fixedly provided on the inner top surface of the internally threaded sleeve (12). A conical ring (11) is fixedly sleeved on the internally threaded sleeve (12). An L-shaped annular plate (9) is fixedly provided between the bottom end of the externally threaded sleeve (13) and the hydrogenation tube (5). A first annular tube airbag (10) is provided between the L-shaped annular plate (9) and the hydrogenation tube (5). The conical ring (11) is in contact with the first annular tube airbag (10).

2. The hydrogen refueling port installation structure for a hydrogen fuel cell vehicle according to claim 1, characterized in that: The locking components include an L-shaped hinge plate (3) and a rectangular iron frame (4). One end of the L-shaped hinge plate (3) is movably hinged in the hinge groove (2) by a pin. The other end of the L-shaped hinge plate (3) is fixed with a magnetic block (18). The rectangular iron frame (4) is fixed on the outer wall of the hydrogenation tube (5), and the magnetic block (18) is adsorbed in the rectangular iron frame (4).

3. The hydrogen refueling port installation structure for a hydrogen fuel cell vehicle according to claim 1, characterized in that: A second annular tube airbag (19) is provided between the internal threaded sleeve (12) and the hydrogenation tube (5), and the second annular tube airbag (19) is fixedly installed on the inner top surface of the zig-shaped cover (15).

4. The hydrogen refueling port installation structure for a hydrogen fuel cell vehicle according to claim 1, characterized in that: The sealing plunger (14) has several weight-reducing grooves inside.

5. The hydrogen refueling port installation structure for a hydrogen fuel cell vehicle according to claim 1, characterized in that: The bottom end of the hydrogen refueling tube (5) is connected to and fixed with an annular plate (6), and a number of mounting bolts (7) are evenly installed on the annular plate (6), each of which is connected to a hydrogen fuel cell vehicle.

6. The hydrogen refueling port installation structure for a hydrogen fuel cell vehicle according to claim 5, characterized in that: The bottom surface of the annular circular plate (6) is provided with an annular groove, and a sealing ring (8) is installed in the annular groove.

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