CN-224229742-U - Lightweight gas cylinder for normal pressure inflation

Abstract

The utility model discloses a lightweight gas cylinder for normal-pressure inflation, which relates to the technical field of unmanned aerial vehicles and comprises a bottle body, a bottle cap, a sealing valve and an air guide connector, wherein the bottle body comprises a bottle body, the front end of the bottle body is provided with a bottle neck, the bottle cap comprises a cap body screwed on the bottle neck, the front end face of the cap body is provided with a first neck, an air port is arranged in the first neck, the sealing valve is arranged in the cap body and used for sealing the air port, the air guide connector comprises a connector body screwed on the first neck, the front end face of the connector body is provided with a second neck, an air guide channel is arranged in the second neck, and an air release needle is arranged in the connector body and used for pushing up the sealing valve for sealing the air port. The utility model adopts a 3D printing technology, uses a high-performance 3D printing material to develop the gas storage bottle, combines a normal pressure inflation method, effectively reduces the weight of the product by at least 20 percent, and improves the research and development efficiency of the product.

Inventors

• ZHAN LI
• CHEN XINYI

Assignees

• 十堰巡天科技开发有限公司

Dates

Publication Date

20260512

Application Date

20250626

Claims (10)

1. 1. The lightweight gas cylinder for normal pressure inflation comprises a cylinder body (1) and a bottle cap (2), and is characterized by further comprising a sealing valve (3) and a gas guide joint (4); The bottle body (1) comprises a bottle body (11), and a bottle neck (12) is arranged at the front end of the bottle body (11); The bottle cap (2) comprises a cap body (21) which is screwed on the bottle neck (12), a first neck (22) is arranged on the front end surface of the cap body (21), and an air port (23) is arranged in the first neck (22); the sealing valve (3) is arranged in the cover body (21) and is used for sealing the air port (23); The air guide connector (4) comprises a connector body (41) which is screwed on the first neck (22), a second neck (42) is arranged on the front end face of the connector body (41), an air guide channel (43) is arranged in the second neck (42), an air release needle (44) is arranged in the connector body (41), and the air release needle (44) is used for pushing up a sealing valve (3) for sealing the air port (23).
2. 2. The lightweight gas cylinder for normal pressure inflation according to claim 1, wherein the inner side wall of the bottle neck (12) is provided with a limiting ring (14), the sealing valve (3) comprises a plug (31) and a spring (33), the front end of the spring (33) is connected with the plug (31), and the rear end of the spring (33) is connected with the limiting ring (14).
3. 3. The lightweight gas cylinder for normal pressure inflation according to claim 2, wherein the front end surface of the plug (31) is a plugging part matched with the gas port (23), and the rear end surface of the plug (31) is provided with a valve rod (32).
4. 4. The lightweight gas cylinder for normal pressure inflation according to claim 1, wherein the outer side wall of the bottle neck (12) is provided with a first external thread (13), and the inner side wall of the cover body (21) is provided with a first internal thread (24) which is matched with the first external thread (13).
5. 5. The lightweight gas cylinder for normal pressure inflation according to claim 1, wherein a first sealing ring (26) matched with the bottle neck (12) is arranged in the cover body (21).
6. 6. The lightweight gas cylinder for normal pressure inflation according to claim 1, wherein the outer side wall of the first neck portion (22) is provided with a second external thread (25), and the inner side wall of the joint body (41) is provided with a second internal thread (46) adapted to the second external thread (25).
7. 7. The lightweight gas cylinder for normal pressure inflation according to claim 1, wherein a second seal ring (47) which is matched with the first neck (22) is arranged in the joint body (41).
8. 8. The lightweight gas cylinder for atmospheric pressure inflation as claimed in claim 1, wherein the gas guide passage (43) is provided with an inclined section (45) for avoiding the gas release needle (44).
9. 9. The lightweight gas cylinder for normal pressure inflation according to claim 1, wherein a first inclined transition surface (15) is arranged between the cylinder body (11) and the bottle neck (12), a second inclined transition surface (27) is arranged between the cover body (21) and the first neck (22), and a third inclined transition surface (48) is arranged between the joint body (41) and the second neck (42).
10. 10. The lightweight gas cylinder for normal pressure inflation according to claim 1, wherein the bottle body (1), the bottle cap (2), the sealing valve (3) and the gas guide joint (4) are all made of high-performance 3D printing materials, and the high-performance 3D printing materials comprise carbon fiber reinforced nylon materials, carbon fiber reinforced polyether ketone materials, carbon fiber reinforced polyphenylene sulfide materials and carbon fiber reinforced polyethylene terephthalate materials.

Description

Lightweight gas cylinder for normal pressure inflation Technical Field The utility model relates to the technical field of unmanned aerial vehicles, in particular to a lightweight gas cylinder for normal-pressure inflation. Background With the vigorous development of low-altitude economy, the development process of unmanned aerial vehicle industry and related matched equipment is accelerated. In the application scenario involving gas cylinders, the existing products have the following pain points to be solved urgently: 1. The matching degree of the material and the safety performance is low, so that the extra burden is caused, and the currently widely used gas storage bottles are generally made of steel materials for ensuring the high-pressure explosion-proof safety, and have high requirements on the material. The problem is that the density is high, the weight is high, and the potential safety hazard is more prominent when the gas storage bottle falls in the air in case of falling. b. The electric conductivity is strong, steel is used as a good conductor, and if the electric wire is accidentally contacted in the air, the short circuit risk is extremely easy to occur. c. The explosion-proof capability is excessive, namely, under the application scene of storing low-pressure gas, the high explosion-proof performance of the gas is redundant, so that the waste of materials and the unnecessary improvement of the performance are caused. 2. The small-scale customization is difficult, the period is long, the cost is high, and in the research and development stage, a small number of prototype gas cylinders with multiple specifications are frequently customized according to the requirements. This process is generally faced with the problems of difficulty in finding a suitable supplier, long processing cycle and high overall cost. 3. The gas filling convenience is insufficient, the gas filling operation of the existing gas storage bottle has high dependency on special equipment, and the flow is complicated. Disclosure of Invention Aiming at the defects in the prior art, the utility model aims to provide a lightweight gas cylinder for normal pressure inflation, adopts a 3D printing technology, develops a gas cylinder by using a high-performance 3D printing material, combines a normal pressure inflation method, effectively reduces the weight of a product by at least 20 percent, and improves the research and development efficiency of the product. The technical scheme includes that the lightweight gas cylinder for normal pressure inflation comprises a cylinder body, a bottle cap, a sealing valve and an air guide connector, wherein the cylinder body comprises a cylinder body, a bottle neck is arranged at the front end of the cylinder body, the bottle cap comprises a cover body screwed on the bottle neck, a first neck is arranged on the front end face of the cover body, an air port is arranged in the first neck, the sealing valve is arranged in the cover body and used for sealing the air port, the air guide connector comprises a connector body screwed on the first neck, a second neck is arranged on the front end face of the connector body, an air guide channel is arranged in the second neck, and an air release needle is arranged in the connector body and used for pushing up the sealing valve for sealing the air port. The bottle neck sealing device is further improved in that a limiting ring is arranged on the inner side wall of the bottle neck, the sealing valve comprises a plug and a spring, the front end of the spring is connected with the plug, and the rear end of the spring is connected with the limiting ring. The plug is further improved in that the front end face of the plug is a plugging part matched with the air port, and the rear end face of the plug is provided with a valve rod. The bottle neck is further improved in that the outer side wall of the bottle neck is provided with a first external thread, and the inner side wall of the cover body is provided with a first internal thread matched with the first external thread. The bottle cap is further improved in that a first sealing ring matched with the bottle neck is arranged in the cap body. The further improvement is that the outer side wall of the first neck is provided with a second external thread, and the inner side wall of the joint body is provided with a second internal thread matched with the second external thread. The further improvement is that a second sealing ring matched with the first neck is arranged in the joint body. The air guide channel is provided with an inclined section for avoiding the air release needle. The bottle is further improved in that a first inclined transition surface is arranged between the bottle body and the bottle neck, a second inclined transition surface is arranged between the cover body and the first neck, and a third inclined transition surface is arranged between the joint body and the second neck. The bottle body, th