Composite gas cylinder with fire-retardant shroud

Abstract

The utility model relates to the field of gas cylinder protection, especially a composite gas cylinder with fire -retardant shield, two or more fire -retardant shield monomers are arranged on the surface of the gas cylinder body, all fire -retardant shield monomers are spliced to form the fire -retardant shield surrounding the gas cylinder body, and the fire -retardant shield is interference fit with the gas cylinder body, wherein the fire -retardant shield monomer can be sleeved or buckled on the gas cylinder body through interference fit, or be fixed through foam tape and other fixing components, when disassembling, the fire -retardant shield monomer is directly detached from the gas cylinder body, or a small amount of fixing components such as foam tape are removed, and both disassembly and assembly are very convenient.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder protection, and in particular to a composite gas cylinder with a flame-retardant protective cover. Background Technology

[0002] To protect the surface structure of gas cylinders, protective measures are often taken. For example, the hydrogen storage cylinders on hydrogen fuel cell drones require strict control over their weight to improve range and payload. Therefore, the drones do not wrap glass fibers around the carbon fiber layer to protect it. However, drones experience vibrations and are exposed to ultraviolet radiation during flight. Vibration can wear down the carbon fiber layer, significantly reducing the cylinder's strength and posing a safety risk. Ultraviolet radiation can age the composite material layer of the cylinder, also reducing its strength. Furthermore, hydrogen-powered drones have a certain risk of falling, which can easily cause a fire, and the hydrogen cylinders are prone to explosion when exposed to an open flame. Therefore, gas cylinders require protection. However, hydrogen-powered drone gas cylinders are typically wrapped directly with foam tape. Once wrapped, it is difficult to peel off, making it impossible to inspect the cylinder's surface condition during filling or normal use. For example, it's impossible to observe whether the cylinder's surface fibers are damaged or broken, thus making it impossible to determine if the cylinder meets usage standards. Furthermore, wrapping the foam tape requires staggered angles to cover the cylinder body, which can lead to uneven wrapping and an uneven, rough surface. The cylinder end cap cannot be directly wrapped; it must be applied piece by piece, resulting in low efficiency, high labor costs, and an unsightly appearance. Therefore, designing a composite gas cylinder with an easily detachable protective device is particularly urgent. Utility Model Content

[0003] The purpose of this invention is to provide a composite gas cylinder with a flame-retardant protective cover to solve the problems existing in the prior art and make the disassembly and assembly of the gas cylinder protective device more convenient.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a composite gas cylinder with a flame-retardant shield: it includes a gas cylinder body and a flame-retardant shield assembly; the flame-retardant shield assembly includes two or more flame-retardant shield units, and all the flame-retardant shield units are assembled to form a flame-retardant shield surrounding the gas cylinder body, and the flame-retardant shield is interference-fitted with the gas cylinder body.

[0006] Furthermore, the inner wall of any of the flame-retardant protective cover units is provided with shock-absorbing protrusions.

[0007] Furthermore, the flame-retardant protective cover unit includes two components, namely flame-retardant cover body one and flame-retardant cover body two, which are cylindrical structures joined together along the axial direction of the gas cylinder body; wherein, the first end of the flame-retardant cover body one is an open end, and the second end is provided with a through hole for the gas cylinder body mouth to be exposed; the first end of the flame-retardant cover body two is an open end, and the second end is a closed end.

[0008] Furthermore, the open end of the flame-retardant cover one and the open end of the flame-retardant cover two are connected by threads.

[0009] Furthermore, the flame-retardant protective cover unit includes two parts, namely flame-retardant cover body one and flame-retardant cover body two, which are semi-enclosed shells that are fastened together along the direction perpendicular to the axial direction of the gas cylinder body.

[0010] Furthermore, the circumferential coverage angles of both the flame-retardant cover one and the flame-retardant cover two are greater than 180°, and after being fastened together, they are clamped and fixed to the cylinder body of the gas cylinder body by interference fit.

[0011] Furthermore, the first part of the flame-retardant cover body one covers the body of the gas cylinder body, and the second part covers the outer wall of the flame-retardant cover body two, forming a double-layer nested structure.

[0012] Furthermore, the fastening edges of the flame-retardant cover one and the flame-retardant cover two are respectively provided with mutually cooperating tooth-like structures. When the flame-retardant cover one and the flame-retardant cover two are fastened together, the tooth-like structures of the two interlock to form a flame-retardant cover that completely covers the gas cylinder body.

[0013] Furthermore, the flame-retardant protective cover assembly also includes a fixing component, which includes at least one of an elastic sleeve, Velcro, and foam tape, for fixing the flame-retardant cover body one and the flame-retardant cover body two together.

[0014] Furthermore, the outer walls of the flame-retardant cover one and the flame-retardant cover two are respectively provided with corresponding grooves; when the flame-retardant cover one and the flame-retardant cover two are fastened together, the grooves together form an annular groove surrounding the gas cylinder body; the fixing component is embedded in the annular groove.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] This utility model discloses a composite gas cylinder with a flame-retardant shield. By setting two or more flame-retardant shield units on the surface of the gas cylinder body, all the flame-retardant shield units are assembled to form a flame-retardant shield surrounding the gas cylinder body. The flame-retardant shield is interference-fitted with the gas cylinder body. During disassembly and assembly, the flame-retardant shield units can be directly removed from or installed on the gas cylinder body, which is very convenient. 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 embodiments 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 1 This is a schematic diagram showing the connection of flame-retardant cover one and flame-retardant cover two along the axial direction of the gas cylinder body in this embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram showing the flame-retardant cover one and flame-retardant cover two connected along the axial direction of the gas cylinder body in an embodiment of this utility model.

[0020] Figure 3 for Figure 2 A cross-sectional view;

[0021] Figure 4 for Figure 1 Right view schematic diagram of the flame-retardant cover;

[0022] Figure 5 This is a schematic diagram of the flame-retardant cover one and flame-retardant cover two fastened together along the axis perpendicular to the gas cylinder body in an embodiment of this utility model.

[0023] Figure 6 for Figure 5 A diagram showing the view from the right.

[0024] Figure 7 This is a schematic diagram showing the flame-retardant cover one and flame-retardant cover two fastened together along the axis perpendicular to the gas cylinder body in an embodiment of this utility model.

[0025] Figure 8 This is a schematic diagram showing the flame-retardant cover body one and flame-retardant cover body two with grooves fastened together in an embodiment of this utility model.

[0026] Figure 9 This is a schematic diagram of the double-layer nested structure formed by the fastening of flame-retardant cover body one and flame-retardant cover body two in an embodiment of this utility model;

[0027] Figure 10 This is a schematic diagram showing the flame-retardant cover body one and flame-retardant cover body two with toothed structures fastened together in an embodiment of the present utility model.

[0028] Among them, 1. Gas cylinder body; 2. Flame-retardant cover; 21. Flame-retardant cover body one; 211. Through hole; 22. Flame-retardant cover body two; 3. Groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0030] The purpose of this invention is to provide a composite gas cylinder with a flame-retardant protective cover to solve the problems existing in the prior art and make the disassembly and assembly of the gas cylinder protective device more convenient.

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] This utility model provides a composite gas cylinder with a flame-retardant protective cover, such as... Figures 1 to 10 As shown, the system includes a gas cylinder body 1 and a flame-retardant shield assembly. The flame-retardant shield assembly comprises two or more individual flame-retardant shield units. When all the individual flame-retardant shield units are assembled, they form a flame-retardant shield 2 that surrounds the gas cylinder body 1, and the flame-retardant shield 2 is interference-fitted with the gas cylinder body 1. The attached diagram illustrates this using two individual flame-retardant shield units assembled into a flame-retardant shield 2 as an example.

[0033] By setting two or more flame-retardant protective cover units on the surface of the gas cylinder body 1, all the flame-retardant protective cover units are assembled to form a flame-retardant protective cover 2 that surrounds the gas cylinder body 1. The flame-retardant protective cover 2 is interference-fitted with the gas cylinder body 1. During disassembly and assembly, the flame-retardant protective cover units can be directly removed from or installed on the gas cylinder body 1, which is very convenient.

[0034] As an example of implementation, shock-absorbing protrusions are distributed on the inner wall of each flame-retardant shield unit to improve the shock absorption protection of the gas cylinder body 1, while reducing the contact area between the flame-retardant shield 2 and the gas cylinder body 1, thereby reducing friction and facilitating disassembly and assembly.

[0035] As an example of an implementable approach, such as Figures 1 to 4 As shown, the flame-retardant protective cover unit includes a flame-retardant cover body one 21 and a flame-retardant cover body two 22, and the flame-retardant cover body one 21 and the flame-retardant cover body two 22 are cylindrical structures that are joined together along the axial direction of the gas cylinder body 1; wherein, the first end of the flame-retardant cover body one 21 is an open end, and the second end is provided with a through hole 211 for the gas cylinder body 1 to be exposed, while the first end of the flame-retardant cover body two 22 is an open end, and the second end is a closed end. The flame-retardant cover body one 21 and the flame-retardant cover body two 22 can be directly fitted onto the gas cylinder body 1 by interference fit, or the open ends of the flame-retardant cover body one 21 and the open ends of the flame-retardant cover body two 22 can be connected by threads to further improve the stability of the connection.

[0036] As an example of an implementable approach, such as Figures 5 to 10 As shown, the flame-retardant protective cover unit includes a flame-retardant cover body 1 21 and a flame-retardant cover body 22. The flame-retardant cover body 1 21 and the flame-retardant cover body 22 are semi-enclosed shells that are fastened together in a direction perpendicular to the axial direction of the gas cylinder body 1. Corresponding grooves 3 can be provided on the outer walls of the flame-retardant cover body 1 21 and the flame-retardant cover body 22 respectively. When the flame-retardant cover body 1 21 and the flame-retardant cover body 22 are fastened together, the grooves 3 together form an annular groove around the gas cylinder body 1. A fixing component for fixing and connecting the flame-retardant cover body 1 21 and the flame-retardant cover body 22 is embedded in the annular groove. The fixing component includes at least one of elastic sleeve, Velcro, and foam tape. By providing the annular groove 3, the fixing component can be prevented from protruding from the outer surface of the flame-retardant protective cover 2, making the whole smooth and flat.

[0037] As an example of an implementable approach, such as Figure 9 , Figure 10 As shown, the circumferential coverage angles of flame-retardant cover 1 (21) and flame-retardant cover 22 are both greater than 180°. After being fastened together, they are clamped and fixed to the cylinder body 1 by an interference fit. One structure is as follows: Figure 9 As shown, the first part of the flame-retardant cover 21 covers the body of the gas cylinder 1, and the second part covers the outer wall of the flame-retardant cover 22, forming a double-layer nested structure; another structure is as follows... Figure 10 As shown, the fastening edges of flame-retardant cover 1 21 and flame-retardant cover 22 are respectively provided with mutually cooperating tooth-like structures. When flame-retardant cover 1 21 and flame-retardant cover 22 are fastened together, the tooth-like structures of the two interlock to form a flame-retardant cover 2 that completely covers the gas cylinder body 1. By using the interference fit clamping method, when disassembling, it is only necessary to peel off flame-retardant cover 1 21 and flame-retardant cover 22 radially along the gas cylinder body 1, which is very convenient for disassembly and assembly.

[0038] The thickness of the flame-retardant shield unit is generally 2 mm to 4 mm, and other thicknesses can be set as needed. The base material of the flame-retardant shield unit is polyurethane, which is foamed after being uniformly mixed with flame retardant. The flame retardant is generally a halogen-free flame retardant (such as aluminum hydroxide and magnesium hydroxide), which has ductility and can achieve interference fit and shock absorption effect. Its flame-retardant properties effectively reduce the risk of explosion caused by fire.

[0039] Any adaptive changes made according to actual needs are within the protection scope of this utility model.

[0040] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A composite gas cylinder with a flame-retardant protective cover, characterized in that, It includes a gas cylinder body and a flame-retardant protective cover assembly; the flame-retardant protective cover assembly includes two or more flame-retardant protective cover units, and all the flame-retardant protective cover units are assembled to form a flame-retardant protective cover surrounding the gas cylinder body, and the flame-retardant protective cover is interference-fitted with the gas cylinder body.

2. The composite gas cylinder with a flame-retardant protective cover according to claim 1, characterized in that, The inner wall of any of the flame-retardant protective cover units is provided with shock-absorbing protrusions.

3. The composite gas cylinder with a flame-retardant protective cover according to claim 1, characterized in that, The flame-retardant protective cover unit includes two components, namely flame-retardant cover body one and flame-retardant cover body two. Flame-retardant cover body one and flame-retardant cover body two are cylindrical structures connected along the axial direction of the gas cylinder body. The first end of flame-retardant cover body one is an open end, and the second end is provided with a through hole for the gas cylinder body mouth to be exposed. The first end of flame-retardant cover body two is an open end, and the second end is a closed end.

4. The composite gas cylinder with a flame-retardant protective cover according to claim 3, characterized in that, The open ends of the flame-retardant cover one and the open ends of the flame-retardant cover two are connected by threads.

5. The composite gas cylinder with a flame-retardant protective cover according to claim 1, characterized in that, The flame-retardant protective cover unit includes two parts, namely flame-retardant cover body one and flame-retardant cover body two. Flame-retardant cover body one and flame-retardant cover body two are semi-enclosed shells that are fastened together along the direction perpendicular to the axial direction of the gas cylinder body.

6. The composite gas cylinder with a flame-retardant protective cover according to claim 5, characterized in that, The circumferential coverage angles of both flame-retardant cover one and flame-retardant cover two are greater than 180°. After being fastened together, they are clamped and fixed to the cylinder body of the gas cylinder body by interference fit.

7. The composite gas cylinder with a flame-retardant protective cover according to claim 5 or 6, characterized in that, The first part of the flame-retardant cover body one covers the body of the gas cylinder, and the second part covers the outer wall of the flame-retardant cover body two, forming a double-layer nested structure.

8. The composite gas cylinder with a flame-retardant protective cover according to claim 5 or 6, characterized in that, The fastening edges of the flame-retardant cover one and the flame-retardant cover two are respectively provided with mutually cooperating tooth-like structures. When the flame-retardant cover one and the flame-retardant cover two are fastened together, the tooth-like structures of the two interlock to form a flame-retardant cover that completely covers the gas cylinder body.

9. The composite gas cylinder with a flame-retardant protective cover according to claim 5 or 6, characterized in that, The flame-retardant protective cover assembly also includes a fixing component, which includes at least one of an elastic sleeve, Velcro, and foam tape, for fixing the flame-retardant cover body one and the flame-retardant cover body two together.

10. The composite gas cylinder with a flame-retardant protective cover according to claim 9, characterized in that, The outer walls of the flame-retardant cover one and the flame-retardant cover two are respectively provided with corresponding grooves; when the flame-retardant cover one and the flame-retardant cover two are fastened together, the grooves together form an annular groove surrounding the gas cylinder body; the fixing component is embedded in the annular groove.

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