Hydrogen storage cylinder fixing mechanism

Abstract

The utility model discloses a hydrogen storage bottle fixing mechanism which comprises a plurality of first fixing assemblies and a plurality of second fixing assemblies, the first fixing assemblies are installed on the outer side of a bottle body of a hydrogen storage bottle in a spaced mode in pairs and used for elastically fixing the bottle body, and the second fixing assemblies are installed on the outer side of the bottle body in a spaced mode. The second fixing assemblies are arranged at the two ends of the bottle body in a pairwise mode and used for transversely fixing the bottle body. The first fixing assembly is arranged on the bottle body of the hydrogen storage bottle, so that the two ends of the bandage on the first fixing assembly are connected with the spring, the bandage on the first fixing assembly can change the stretching degree of the bandage according to expansion generated in the inflation process of the hydrogen storage bottle, and then the bottle body is elastically fixed; therefore, the damage of the fixing bandage to the body of the hydrogen storage cylinder is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen energy technology, specifically to a hydrogen storage cylinder fixing mechanism. Background Technology

[0002] Hydrogen fuel cell commercial vehicles are developing rapidly. Among them, the 35MPa hydrogen storage system is a key component of the vehicle. Its function is to safely store compressed hydrogen and provide a stable flow of hydrogen to the fuel cell.

[0003] The commonly used method for securing gas cylinders is by using straps. This involves securing the cylinder to a cylinder saddle using metal straps lined with rubber. The cylinder's extension direction is perpendicular to the vehicle's direction of travel. The straps prevent the cylinder from detaching during vehicle movement. Existing hydrogen storage cylinder securing mechanisms (a novel vehicle-mounted hydrogen storage cylinder securing mechanism with application number 202021264775.7) incorporate plastic sleeves. The cylinder opening is inserted into the plastic sleeve, and anti-detachment grooves and anti-detachment rings both limit the movement of the plastic sleeve, preventing it from moving with the cylinder. This ensures a secure installation of the cylinder and prevents it from sliding during vehicle start-up and sudden stops. However, after filling, the diameter of the Type 4 hydrogen storage cylinder will expand by 5%. If the traditional method of securing it with straps is used, the tension will damage the cylinder. Furthermore, there are no fixing components at both ends of the horizontally placed hydrogen storage cylinder to secure it and prevent it from shifting horizontally when the vehicle is in motion at a large angle, thus affecting the normal use of the hydrogen storage cylinder. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a hydrogen storage cylinder fixing mechanism to solve the problems of existing hydrogen storage cylinder fixing mechanisms. The use of traditional fixing straps can damage the hydrogen storage cylinder, and there are no fixing components at both ends of the horizontally placed hydrogen storage cylinder. This prevents the hydrogen storage cylinder from shifting horizontally when the vehicle is moving at a large angle, thus affecting the normal use of the hydrogen storage cylinder.

[0005] According to the technical solution provided in the embodiments of this application, the hydrogen storage cylinder fixing mechanism includes a plurality of first fixing components and a plurality of second fixing components. The plurality of first fixing components are installed in pairs at intervals on the outside of the hydrogen storage cylinder body for elastic fixing of the cylinder body, while the plurality of second fixing components are arranged in pairs at both ends of the cylinder body for lateral fixing of the cylinder body.

[0006] The first fixing component includes a fixing base, two springs and a strap, with the two springs mounted at both ends of the strap and the two springs mounted on the fixing base, so that the strap and the two springs elastically fix the bottle body to the fixing base;

[0007] The second fixing component includes a mounting base, several elastic elements, several movable rods, and a fixing plate. The several movable rods are installed side by side and spaced apart at the rear end of the fixing plate. The mounting base is provided with several corresponding buffer grooves. Each movable rod is movably installed in the corresponding buffer groove, and each movable rod abuts against the elastic element installed in the buffer groove. The mounting base is installed on the frame so that the second fixing component fixes the end of the bottle.

[0008] Furthermore, the fixing base is provided with a first fixing groove, which has an arc-shaped structure.

[0009] Furthermore, the two ends of the fixing base are fixedly installed on the frame by bolts.

[0010] Furthermore, the front end of the fixing plate is provided with a second fixing groove with an arc-shaped structure, the second fixing groove being adapted to the end structure of the bottle body so that the end of the bottle body is engaged in the second fixing groove.

[0011] Furthermore, the mounting base and the fixing plate form a ring structure.

[0012] Furthermore, the elastic element is a metal spring.

[0013] Furthermore, the frame is made of lightweight material through stamping, so that the frame is lightweight without reducing its support strength.

[0014] Furthermore, the contact surfaces of the straps and fixing plates with the bottle body are made of rubber, thereby increasing the friction between the straps and fixing plates and the bottle body, and improving the fixing quality of the fixing components for the hydrogen storage cylinder.

[0015] In summary, the beneficial effects of this application are as follows:

[0016] 1. By setting a first fixing component on the body of the hydrogen storage cylinder, the two ends of the strap on the first fixing component are connected to the spring, so that the strap on the first fixing component can change the tension of the strap according to the expansion that occurs during the filling of the hydrogen storage cylinder, thereby elastically fixing the cylinder body and reducing the damage to the cylinder body caused by the fixing strap.

[0017] Second, by setting corresponding second fixing components at both ends of the hydrogen storage cylinder, the fixing plates on the second fixing components can be engaged with the ends of the cylinder body. When the cylinder body tilts horizontally, several moving rods connected to the rear end of the fixing plate move along the corresponding buffer grooves set on the mounting base, thereby buffering and fixing both ends of the hydrogen storage cylinder, preventing the hydrogen storage cylinder from slipping out and falling off, which could cause deformation of the gas supply pipeline, etc., thereby improving the fixing efficiency and fixing quality of the fixing mechanism for the hydrogen storage cylinder. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded structural diagram of the present invention;

[0021] Figure 3 This is a side view of the first fixing component of this utility model.

[0022] Figure 4 This is a cross-sectional structural diagram of the second fixing component of this utility model.

[0023] The following numbers are marked in the diagram: First fixing component - 100, fixing seat - 110, spring - 120, strap - 130, second fixing component - 200, mounting seat - 210, elastic element - 220, moving rod - 230, fixing plate - 240, bottle body - 300, frame - 400. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] The hydrogen storage cylinder fixing mechanism has the following structure: Figures 1-4As shown, the device includes several first fixing components 100 and several second fixing components 200. The first fixing components 100 are installed in pairs at intervals on the outside of the hydrogen storage cylinder body 300 to elastically fix the cylinder body 300. The second fixing components 200 are arranged in pairs at both ends of the cylinder body 300 for lateral fixing. Each first fixing component 100 includes a fixing base 110, two springs 120, and a strap 130. The two springs 120 are installed at both ends of the strap 130 and on the fixing base 110, so that the strap 130, after connecting with the two springs 120, elastically fixes the cylinder body 300 to the fixing base 110. The strap 130 can be adjusted in tightness according to the expansion of the hydrogen storage cylinder after inflation. To improve the fixing quality of the hydrogen storage cylinder by the fixing mechanism, the second fixing component 200 includes a mounting base 210, several elastic elements 220, several moving rods 230, and a fixing plate 240. The several moving rods 230 are installed side by side and spaced apart at the rear end of the fixing plate 240. The mounting base 210 is provided with several corresponding buffer grooves. Each moving rod 230 is movably installed in the corresponding buffer groove, and each moving element abuts against the corresponding elastic element 220 installed in the buffer groove. The elastic element 220 is a metal spring, so that the fixing base 110 can move in the horizontal direction. Several connecting lugs are installed around the mounting base 210, so that each connecting lug is installed on the frame 400 by bolts, thereby fixing the end of the cylinder body 300 by the second fixing component 200.

[0027] As a preferred embodiment, please refer to Figure 2 and Figure 3 The fixing seat 110 is provided with a first fixing groove, which has an arc-shaped structure so that the first fixing groove is used for placing the hydrogen storage cylinder body 300. The two ends of the fixing seat 110 are fixedly installed on the frame 400 by bolts so that the first fixing component 100 is fixedly installed on the frame 400.

[0028] As a preferred embodiment, please refer to Figure 4 The front end of the fixing plate 240 is provided with a second fixing groove with an arc structure. The second fixing groove is adapted to the end structure of the bottle body 300 so that the end of the bottle body 300 is engaged in the second fixing groove. The mounting base 210 and the fixing plate 240 form a ring structure, which facilitates the connection of the gas transmission pipe on the hydrogen storage cylinder.

[0029] As a preferred embodiment, please refer to Figure 1 and Figure 2 The frame 400 is made of lightweight material by stamping, so that the frame 400 is lightweight without reducing the support strength.

[0030] As a preferred embodiment, please refer to Figure 3 and Figure 4 The contact surfaces of the straps 130 and the fixing plate 240 with the cylinder body 300 are made of rubber, which increases the friction between the straps 130 and the fixing plate 240 and the cylinder body 300, thereby improving the fixing quality of the fixing components on the hydrogen storage cylinder.

[0031] The working principle of this utility model's hydrogen storage cylinder fixing mechanism is as follows:

[0032] During the fixing process of the hydrogen storage cylinder, the existing 35MPa-450L cylinder has a diameter of approximately 604mm, which can reach 607mm after filling. Using traditional fixing methods, the tension of the straps 130 would damage the cylinder. By setting several first fixing components 100 on the frame 400 of the fixing mechanism, the ends of the straps 130 on the first fixing components 100 are connected to springs 120. The springs 120 are 60*60mm in size, with a compression coefficient of 1176N / mm, a maximum compression length of 17mm, a compression amount of 9mm, and a remaining compressible amount of 8mm, which is greater than the cylinder's expansion amount. This allows the straps 130 to adjust according to the expansion of the hydrogen storage cylinder during filling. The 130 stretch provides elastic fixation to the cylinder body 300, reducing damage to the cylinder body 300 caused by the fixing straps 130. Simultaneously, several second fixing components 200 are provided on both sides of the frame 400 to fix both ends of the hydrogen storage cylinder. Fixing plates 240 on the second fixing components 200 engage with the ends of the cylinder body 300. When the cylinder body 300 tilts horizontally, several moving rods 230 connected to the rear end of the fixing plate 240 move along corresponding buffer grooves on the mounting base 210, thereby buffering and fixing both ends of the hydrogen storage cylinder, preventing it from slipping out and falling, which could cause deformation of the gas supply pipeline, thus improving the fixing efficiency and quality of the fixing mechanism for the hydrogen storage cylinder.

[0033] The above description is merely a preferred embodiment of this application and an explanation of the technical principles and solutions employed. Furthermore, the scope of the utility model involved in this application is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A hydrogen storage cylinder fixing mechanism, comprising a plurality of first fixing components (100) and a plurality of second fixing components (200), wherein the plurality of first fixing components (100) are installed in pairs at intervals on the outside of the hydrogen storage cylinder body (300) for elastic fixing of the cylinder body (300), and the plurality of second fixing components (200) are arranged in pairs at both ends of the cylinder body (300) for lateral fixing of the cylinder body (300), characterized in that: The first fixing component (100) includes a fixing base (110), two springs (120) and a strap (130). The two springs (120) are mounted on both ends of the strap (130) and on the fixing base (110) so that the strap (130) and the two springs (120) elastically fix the bottle body (300) to the fixing base (110). The second fixing component (200) includes a mounting base (210), a plurality of elastic members (220), a plurality of movable rods (230), and a fixing plate (240). The plurality of movable rods (230) are installed side by side and spaced apart at the rear end of the fixing plate (240). The mounting base (210) is provided with a plurality of corresponding buffer grooves. Each movable rod (230) is movably installed in the corresponding buffer groove, and each movable member abuts against the elastic member (220) installed in the buffer groove. The mounting base (210) is installed on the frame (400) so that the second fixing component (200) fixes the end of the bottle body (300).

2. The hydrogen storage cylinder fixing mechanism according to claim 1, characterized in that: The fixing seat (110) is provided with a first fixing groove, which has an arc-shaped structure.

3. The hydrogen storage cylinder fixing mechanism according to claim 1, characterized in that: The fixed base (110) is fixedly installed on the frame (400) at both ends by bolts.

4. The hydrogen storage cylinder fixing mechanism according to claim 1, characterized in that: The front end of the fixing plate (240) is provided with a second fixing groove with an arc-shaped structure. The second fixing groove is adapted to the end structure of the bottle body (300) so that the end of the bottle body (300) is engaged in the second fixing groove.

5. The hydrogen storage cylinder fixing mechanism according to claim 1, characterized in that: The mounting base (210) and the fixing plate (240) form a ring structure.

6. The hydrogen storage cylinder fixing mechanism according to claim 1, characterized in that: The elastic element (220) is a metal spring.

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