Protective cover mechanism and vehicle-mounted hydrogen cylinder thereof

Abstract

The utility model discloses a protective cover mechanism and a vehicle-mounted hydrogen cylinder thereof, and relates to the technical field of vehicle-mounted hydrogen cylinder protection, the protective cover mechanism comprises a fixing ring, a plurality of first protective sheets are annularly hinged on the fixing ring at equal angles, and a plurality of second protective sheets are annularly hinged on the fixing ring at equal angles. During use, through the arrangement of the first protection sheet, the second protection sheet and the third blade, in the installation process, the first protection sheet and the second protection sheet are bonded to the outer side face of the end of the hydrogen cylinder, and the third blade and the second blade are bonded together; therefore, the first protection piece, the second protection piece and the third protection piece form a firm whole, the first protection piece and the second protection piece cannot swing independently due to stress, and then the connection strength between the first protection piece, the second protection piece and the third protection piece and the hydrogen cylinder is guaranteed. And the protection effect of the protection cover mechanism on the hydrogen cylinder is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted hydrogen cylinder protection technology, and in particular to a protective cover mechanism and its vehicle-mounted hydrogen cylinder. Background Technology

[0002] With the development of clean energy and increasingly stringent environmental protection requirements, more and more new energy vehicles are beginning to replace some gasoline vehicles. Among them, the most technologically mature new energy vehicles are electric vehicles and hydrogen fuel cell vehicles.

[0003] Hydrogen fuel cell vehicles are powered by hydrogen, which is stored in onboard hydrogen cylinders installed inside the car. Because hydrogen is flammable and explosive, protective covers are installed to enhance the protection of the onboard hydrogen cylinders, thereby ensuring the safety of hydrogen fuel cell vehicles during operation.

[0004] Chinese utility model patent application CN202321045105.X describes a protective cover and a hydrogen storage cylinder. It features multiple protective blades that overlap sequentially along the circumference of a fixed ring, forming a protective ring. Each blade is oscillatingly mounted on the fixed ring to adjust the radial dimension of the outer ring. The inner wall of the protective ring fits against the outer wall of the hydrogen storage cylinder, and the angle of the blades is adjustable, thus protecting hydrogen cylinders of different sizes and improving the applicability of the protective cover. However, in this protective cover, the protective blades are fixedly connected to the end of the hydrogen cylinder using adhesive and straps. Because the protective blades need to adapt to different sizes of hydrogen cylinders, it is difficult for all sides of the blades to fit completely against the outer side of the cylinder end. This results in a small adhesive bonding area, and the blades are only simply overlapped for positioning, which reduces the reliability of the connection between the blades and the hydrogen cylinder, thereby reducing the protective effect of the cover on the hydrogen cylinder. Utility Model Content

[0005] The purpose of this utility model is to provide a protective cover mechanism and its vehicle-mounted hydrogen cylinder to solve the problem mentioned in the background art that the connection strength between the existing hydrogen cylinder protective cover and the hydrogen cylinder is low, resulting in poor protection of the hydrogen cylinder.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective cover mechanism, including a fixed ring, on which a plurality of first protective plates are hinged at equal angles in a ring, and on which a plurality of second protective plates are hinged at equal angles in a ring, the number of the plurality of first protective plates and the plurality of second protective plates are the same and they are staggered, and a third protective plate is fixedly connected to the convex surface of each of the plurality of first protective plates, the width of the third protective plate is greater than the width of the first protective plate, and the plurality of third protective plates are distributed in a ring at equal angles.

[0007] Preferably, the first and second protective sheets are identical in shape and size, and the width of the third protective sheet is twice that of the first protective sheet. This arrangement allows the third protective sheet to completely cover both the first and second protective sheets, thereby enhancing the bonding strength between them and improving the protective effect of the protective cover mechanism on the bottle.

[0008] Preferably, it also includes an angle adjustment component, which is used to adjust the swing angle of the first protective plate and the second protective plate. The advantage of this setting is that the angle of the first and second protective plates can be adjusted according to the size of the hydrogen cylinder to be protected, so that the first and second protective plates can fit against the outer side of the end of hydrogen cylinders of different sizes, thereby improving the applicability of the protective cover mechanism and effectively improving the practicality of the protective cover mechanism.

[0009] Preferably, the angle adjustment assembly includes multiple through cavities formed at equal angles on the outer circumference of the fixed ring. These cavities penetrate the inner surface of the fixed ring. Rotating plates are rotatably connected between the inner walls of the multiple through cavities via a first rotating shaft. The tops of the multiple rotating plates penetrate the tops of the through cavities and are respectively fixedly connected to the bottoms of multiple first protective plates and multiple second protective plates. The angle adjustment assembly also includes a threaded section formed on the inner ring of the rear end of the fixed ring. A top ring is threadedly inserted into the rear end of the fixed ring. The front end of the top ring has a frustum-shaped surface. The sides of the multiple rotating plates abut against the frustum-shaped surface. A limiting ring is fixedly connected to the rear end of the top ring. The outer diameter of the limiting ring is larger than the inner diameter of the fixed ring. The advantage of this design is that rotating the top ring clockwise or counterclockwise allows it to move forward or backward within the inner ring of the fixed ring. This causes the frustum-shaped surface to push the multiple rotating plates to rotate, adjusting the swing angle of the first and second protective plates. This makes the adjustment of the angles of the first and second protective plates simple and convenient, improving the convenience and practicality of the protective cover mechanism.

[0010] Preferably, the angle adjustment assembly further includes a fixing mechanism disposed on the inner ring of the fixing ring. The fixing mechanism is used to fix the top ring. The advantage of this arrangement is that it can ensure that the top ring will not move during use, thereby ensuring that the first protective plate and the second protective plate can be stably bonded to the outer surface of the hydrogen cylinder end, thus improving the protective effect of the protective cover mechanism on the hydrogen cylinder.

[0011] A vehicle-mounted hydrogen cylinder includes a cylinder body, characterized in that: a cylinder valve is connected to the right end of the cylinder body, an overpressure protection valve is connected to the left end of the cylinder body, and multiple heat dissipation fins are fixedly connected to the outer side of the overpressure protection valve.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, by setting a first protective plate, a second protective plate, and a third blade, during the installation process, not only are the first and second protective plates bonded to the outer surface of the hydrogen cylinder end, but the third blade and the second blade are also bonded together. This makes the first, second, and third protective plates form a solid whole, preventing the first and second protective plates from swinging independently under force. This ensures the connection strength between the first, second, and third protective plates and the hydrogen cylinder, greatly improving the protective effect of the protective cover mechanism on the hydrogen cylinder.

[0014] 2. In this utility model, by setting an angle adjustment component, the top ring can be moved forward or backward in the inner ring of the fixed ring by rotating the top ring clockwise or counterclockwise. This causes the frustum-shaped surface to push multiple rotating plates to rotate, thereby adjusting the swing angle of the first and second protective plates. This makes the adjustment of the angle of the first and second protective plates simple and convenient, improving the convenience and practicality of the protective cover mechanism. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the structure of a protective cover mechanism in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of a first partial structure of a protective cover mechanism in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of a second partial structure of a protective cover mechanism in an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of a third partial structure of a protective cover mechanism in an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the fourth partial structure of a protective cover mechanism in an embodiment of the present utility model;

[0021] Figure 6 As an embodiment of this utility model Figure 5 Enlarged view of point A in the middle;

[0022] Figure 7 This is a front view of a vehicle-mounted hydrogen cylinder according to an embodiment of the present invention.

[0023] In the diagram: 1. Fixing ring; 2. First protective plate; 3. Second protective plate; 4. Third protective plate; 5. Angle adjustment assembly; 51. Through cavity; 52. Rotating plate; 53. Top ring; 54. Frustum-shaped surface; 55. Limiting ring; 56. Fixing mechanism; 561. Fixing plate; 562. Fixing block; 563. Screw; 564. Clamping block; 565. Slot; 566. Clamping tooth; 6. Bottle body; 7. Bottle neck valve; 8. Overpressure protection valve; 9. Heat dissipation fins. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please refer to Figures 1-6 The protective cover mechanism shown includes a fixed ring 1, on which a plurality of first protective plates 2 are hinged at equal angles in a ring. A plurality of second protective plates 3 are also hinged at equal angles in a ring on the fixed ring 1. The number of first protective plates 2 and second protective plates 3 are the same and they are staggered. A third protective plate 4 is fixedly connected to the convex surface of each of the first protective plates 2. The width of the third protective plate 4 is greater than the width of the first protective plate 2. The plurality of third protective plates 4 are distributed in a ring at equal angles.

[0027] refer to Figure 1 and Figure 2 The first protective sheet 2 and the second protective sheet 3 have the same shape and size, and the width of the third protective sheet 4 is twice the width of the first protective sheet 2.

[0028] Specifically, this allows the third protective sheet 4 to completely cover the first protective sheet 2 and the second protective sheet 3, thereby enhancing the bonding strength between the third protective sheet 4 and the second protective sheet 3, and thus improving the protective effect of the protective cover mechanism on the bottle body 6.

[0029] refer to Figures 2-6 It also includes an angle adjustment component 5, which is used to adjust the swing angle of the first protective plate 2 and the second protective plate 3.

[0030] Specifically, the angles of the first protective plate 2 and the second protective plate 3 can be adjusted according to the size of the hydrogen cylinder to be protected, so that the first protective plate 2 and the second protective plate 3 can fit against the outer side of the end of hydrogen cylinders of different sizes, thereby improving the applicability of the protective cover mechanism and effectively enhancing its practicality.

[0031] refer to Figures 2-6 The angle adjustment component 5 includes multiple through cavities 51 that are opened at equal angles on the outer circumference of the fixed ring 1. The through cavities 51 penetrate the inner side of the fixed ring 1. The inner sidewalls of the multiple through cavities 51 are rotatably connected to the rotating plates 52 through a first rotating shaft. The top of the multiple rotating plates 52 penetrates the top of the through cavities 51 and is fixedly connected to the bottom of the multiple first protective plates 2 and the bottom of the multiple second protective plates 3 respectively. The angle adjustment component 5 also includes a threaded section opened on the inner ring of the rear end of the fixed ring 1. A top ring 53 is threadedly inserted into the rear end of the fixed ring 1. The front end of the top ring 53 is provided with a frustum-shaped surface 54. The sides of the multiple rotating plates 52 abut against the frustum-shaped surface 54. A limit ring 55 is fixedly connected to the rear end of the top ring 53. The outer diameter of the limit ring 55 is larger than the inner diameter of the fixed ring 1.

[0032] Specifically, by rotating the top ring 53 clockwise or counterclockwise, the top ring 53 can be moved forward or backward within the inner ring of the fixed ring 1. This causes the frustum-shaped surface 54 to push multiple rotating plates 52 to rotate, thereby adjusting the swing angle of the first protective plate 2 and the second protective plate 3. This makes the adjustment of the angle of the first protective plate 2 and the second protective plate 3 simple and convenient, improving the convenience and practicality of the protective cover mechanism.

[0033] refer to Figures 2-6 The angle adjustment component 5 also includes a fixing mechanism 56 disposed on the inner ring of the fixing ring 1, which is used to fix the top ring 53.

[0034] Specifically, it ensures that the top ring 53 will not move during use, thereby ensuring that the first protective plate 2 and the second protective plate 3 can be stably bonded to the outer surface of the hydrogen cylinder end, thus improving the protective effect of the protective cover mechanism on the hydrogen cylinder.

[0035] The fixing mechanism 56 includes multiple fixing plates 561 fixedly connected at equal angles to the inner wall of the top ring 53. Each fixing plate 561 has a fixing block 562 fixedly connected to the side away from the rotating plate 52. Each fixing block 562 has a screw 563 threadedly inserted into the side of the fixing block 562 that is close to each other. The end of the screw 563 close to the inner wall of the fixing ring 1 passes through the fixing block 562 and is rotatably connected to an arc-shaped clamping block 564. The fixing mechanism 56 also includes multiple slots 565 that are opened in a ring at equal angles on the inner wall of the fixing ring 1. The fixing mechanism 56 also includes multiple teeth 566 that are fixedly connected at equal angles in an arc shape to the side of the clamping block 564 close to the inner wall of the fixing ring 1. The multiple teeth 566 can be engaged into the multiple slots 565, which can firmly fix the top ring 53 in the inner wall of the fixing ring 1, prevent the top ring 53 from loosening during use, and thus ensure the protective effect of the protective cover mechanism on the hydrogen cylinder.

[0036] Please refer to Figure 7 A vehicle-mounted hydrogen cylinder includes a cylinder body 6, characterized in that: a cylinder valve 7 is connected to the right end of the cylinder body 6, and an overpressure protection valve 8 is connected to the left end of the cylinder body 6. Multiple heat dissipation fins 9 are fixedly connected to the outer side of the overpressure protection valve 8. The heat dissipation fins 9 can conduct heat out of the cylinder body 6 to prevent the internal temperature of the cylinder body 6 from becoming too high.

[0037] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective cover mechanism, comprising a retaining ring (1), characterized in that: The fixing ring (1) has multiple first protective plates (2) hinged at equal angles in a ring. The fixing ring (1) also has multiple second protective plates (3) hinged at equal angles in a ring. The number of the multiple first protective plates (2) and the multiple second protective plates (3) are the same and they are staggered. A third protective plate (4) is fixedly connected to the convex surface of each of the multiple first protective plates (2). The width of the third protective plate (4) is greater than the width of the first protective plate (2). The multiple third protective plates (4) are distributed in a ring at equal angles.

2. The protective cover mechanism according to claim 1, characterized in that: The first protective sheet (2) and the second protective sheet (3) have the same shape and size, and the width of the third protective sheet (4) is twice the width of the first protective sheet (2).

3. The protective cover mechanism according to claim 2, characterized in that: It also includes an angle adjustment component (5), which is used to adjust the swing angle of the first protective plate (2) and the second protective plate (3).

4. The protective cover mechanism according to claim 3, characterized in that: The angle adjustment assembly (5) includes multiple through cavities (51) formed at equal angles on the outer circumference of the fixed ring (1). The through cavities (51) penetrate the inner side of the fixed ring (1). The inner sidewalls of the multiple through cavities (51) are rotatably connected to rotating plates (52) via a first rotating shaft. The tops of the multiple rotating plates (52) penetrate the top of the through cavities (51) and are fixedly connected to the bottoms of multiple first protective plates (2) and multiple second protective plates (3), respectively. The angle adjustment assembly (5) also includes a threaded section formed on the inner ring of the rear end of the fixed ring (1). A top ring (53) is threaded into the rear end of the fixed ring (1). The front end of the top ring (53) is provided with a frustum-shaped surface (54). The sides of the multiple rotating plates (52) abut against the frustum-shaped surface (54). A limiting ring (55) is fixedly connected to the rear end of the top ring (53). The outer diameter of the limiting ring (55) is larger than the inner diameter of the fixed ring (1).

5. A protective cover mechanism according to claim 4, characterized in that: The angle adjustment assembly (5) further includes a fixing mechanism (56) disposed on the inner ring of the fixing ring (1), the fixing mechanism (56) being used to fix the top ring (53).

6. A vehicle-mounted hydrogen cylinder, comprising a protective cover mechanism as described in any one of claims 1-5, including a cylinder body (6), characterized in that: The bottle body (6) is connected to a bottle mouth valve (7) on the right end, and an overpressure protection valve (8) is connected to the left end of the bottle body (6). Multiple heat dissipation fins (9) are fixedly connected to the outer side of the overpressure protection valve (8).

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