High pressure resistant air cannon tube
By introducing a metal frame reinforcing rib structure and a neoprene rubber protective layer into the pneumatic gun tube, the problem of easy damage to high-pressure resistant pneumatic gun tubes is solved, and the compressive strength and airtightness are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIHAI WENYAN PLASTIC TECH CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-05-29
AI Technical Summary
Existing high-pressure resistant air gun tubes are easily damaged by impacts during use, affecting their service life, and the airtightness of the connections is insufficient.
The frame structure consists of a metal frame and reinforcing ribs, combined with a neoprene rubber protective layer and a nitrile rubber inner layer. The inner layer is equipped with an anti-corrosion and waterproof layer, and the connectors are equipped with sealing rings and threaded grooves to improve compressive strength and airtightness.
It enhances the high pressure resistance and compressive strength of the air gun tube, prevents collision damage, and improves the airtightness of the connection.
Smart Images

Figure CN224301528U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pneumatic gun tube technology, and in particular to a high-pressure resistant pneumatic gun tube. Background Technology
[0002] High-pressure resistant pneumatic gun pipes are pipes designed specifically for conveying high-pressure airflow in high-pressure pneumatic guns (pneumatic tools). Their core requirements are excellent pressure resistance, impact resistance, and durability to adapt to the harsh working conditions such as high pressure and high-frequency impact during pneumatic gun operation.
[0003] Existing high-pressure resistant pneumatic gun tubes are damaged during use due to repeated handling and collisions, which affects their service life. Therefore, a new type of high-pressure resistant pneumatic gun tube is needed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of the aforementioned technologies and provide a high-pressure resistant pneumatic cannon tube.
[0005] Therefore, this utility model provides a high-pressure resistant pneumatic torch tube, including a tube body comprising an inner layer, a high-pressure resistant layer, and a protective layer. The high-pressure resistant layer includes a metal frame with reinforcing ribs installed inside. Both ends of the metal frame are fixedly connected to fixing rings. One end of the tube body is fixedly connected to a first connector, and the other end is fixedly connected to a second connector. In use, the metal frame forms an integral framework, and multiple reinforcing ribs are installed inside the metal frame to enhance the overall high-pressure resistance. The fixing rings at both ends further enhance the overall compressive strength of the device.
[0006] Furthermore, the protective layer is made of neoprene rubber, and an ultraviolet-resistant coating is provided on the outside of the protective layer, with an anti-aging coating further provided on the outside of the ultraviolet-resistant coating. Since the protective layer primarily serves a protective function, the neoprene rubber jacket can prevent the pipe from being damaged by impacts during dragging.
[0007] Furthermore, the second connector includes a connecting frame, the interior of which has an annular groove, and a sealing ring is installed inside the annular groove. The sealing ring is installed using the annular groove.
[0008] Furthermore, the inner wall of the connecting frame is provided with a circular hole, and the inner wall of the circular hole is provided with a threaded groove.
[0009] Furthermore, the inner layer is made of nitrile rubber, and its inner wall is provided with an anti-corrosion layer and a waterproof layer. Since the inner layer of the pipe is in direct contact with the high-pressure airflow, and the airflow or compressed air may contain trace amounts of oil and moisture that can cause corrosion, the anti-corrosion layer and waterproof layer enhance the corrosion resistance and waterproofness of the inner layer.
[0010] Furthermore, the first and second connectors have the same structure and are symmetrically distributed around the tube body. The first or second connector facilitates compatibility with the pneumatic wrench and air source interface, and the threaded groove and the sealing ring inside the annular groove enhance the airtightness of the connection.
[0011] This utility model has the following beneficial effects:
[0012] 1. Compared with the existing technology, this high-pressure resistant air gun tube, by setting a metal frame, reinforcing ribs and fixing rings, the device uses the metal frame to form an overall frame when in use, and multiple reinforcing ribs are installed inside the metal frame to enhance the overall high-pressure resistance performance. Then, it is fixed by fixing rings at both ends, which helps to further improve the overall compressive strength of the device.
[0013] 2. Compared with the prior art, this high-pressure resistant air gun tube, by setting a first connector and a second connector, can be easily matched with the air gun and air source interface by using the first connector or the second connector, and the sealing ring inside the threaded groove and the annular groove helps to improve the airtightness of the connection. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure proposed in this utility model;
[0016] Figure 3 This is an exploded view of the internal structure proposed in this utility model;
[0017] Figure 4 The present utility model proposes Figure 3 Enlarged view of point A in the middle;
[0018] Figure 5 The present utility model proposes Figure 3 Enlarged view of section B in the middle.
[0019] The markings in the diagram are: 1. Pipe body; 101. Inner layer; 102. High-pressure resistant layer; 1021. Metal frame; 1022. Reinforcing rib; 1023. Fixing ring; 103. Protective layer; 2. First connector; 3. Second connector; 301. Connecting frame; 302. Annular groove; 303. Sealing ring; 304. Threaded groove; 4. Anti-corrosion layer; 5. Waterproof layer. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0021] Reference Figure 1-5 This utility model provides a high-pressure resistant pneumatic cannon tube, comprising a tube body 1, an inner layer 101, a high-pressure resistant layer 102, and a protective layer 103. The high-pressure resistant layer 102 includes a metal frame 1021, with reinforcing ribs 1022 installed inside the metal frame 1021. Fixing rings 1023 are fixedly connected to both ends of the metal frame 1021. A first connector 2 is fixedly connected to one end of the tube body 1, and a second connector 3 is fixedly connected to the other end. In use, the metal frame 1021 forms an overall framework, and multiple reinforcing ribs 1022 are installed inside the metal frame 1021 to enhance the overall high-pressure resistance. The fixing rings 1023 at both ends further improve the overall compressive strength of the device.
[0022] The protective layer 103 is made of neoprene rubber, and the exterior of the protective layer 103 is coated with a UV-resistant coating, which in turn is coated with an anti-aging coating. Since the protective layer 103 primarily serves a protective function, the neoprene rubber jacket can prevent the pipe from being damaged by impacts during dragging.
[0023] The second connector 3 includes a connecting frame 301, the inside of which is provided with an annular groove 302, and a sealing ring 303 is installed inside the annular groove 302. The sealing ring 303 is installed using the annular groove 302.
[0024] The inner wall of the connecting bracket 301 has a circular hole, and the inner wall of the circular hole has a threaded groove 304. The first connecting head 2 or the second connecting head 3 can be used to easily match the air gun and air source interface, and the sealing ring 303 inside the threaded groove 304 and the annular groove 302 helps to improve the airtightness of the connection.
[0025] The inner layer 101 is made of nitrile rubber, and the inner wall of the inner layer 101 is provided with an anti-corrosion layer 4 and a waterproof layer 5. Since the inner layer 101 of the pipeline is in direct contact with the high-pressure airflow, and the airflow or compressed air may contain trace amounts of oil and moisture that can cause corrosion, the anti-corrosion layer 4 and the waterproof layer 5 enhance the corrosion resistance and waterproofness of the inner layer 101.
[0026] The first connector 2 and the second connector 3 have the same structure and are symmetrically distributed on both sides with the tube body 1 as the center. The first connector 2 and the second connector 3 have the same structure and can be rotated from both ends to connect to the pneumatic gun.
[0027] Working principle: When in use, the device uses a metal frame 1021 to form an overall frame, and multiple reinforcing ribs 1022 are installed inside the metal frame 1021 to enhance the overall high pressure resistance. It is then fixed by the fixing rings 1023 at both ends, which helps to further improve the overall pressure resistance of the device. The first connector 2 or the second connector 3 is used to facilitate matching with the blower and air source interface, and the sealing ring 303 inside the threaded groove 304 and the annular groove 302 helps to improve the airtightness of the connection.
[0028] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A high-pressure resistant pneumatic gun tube, comprising a tube body (1), characterized in that: The tube body (1) includes an inner layer (101), a high-pressure resistant layer (102), and a protective layer (103). The high-pressure resistant layer (102) includes a metal frame (1021). A reinforcing rib (1022) is installed inside the metal frame (1021). A fixing ring (1023) is fixedly connected to both ends of the metal frame (1021). A first connector (2) is fixedly connected to one end of the tube body (1), and a second connector (3) is fixedly connected to the other end of the tube body (1).
2. The high-pressure resistant pneumatic gun tube according to claim 1, characterized in that: The protective layer (103) is a chloroprene rubber product, and the outer side of the protective layer (103) is provided with an anti-ultraviolet coating, and the outer side of the anti-ultraviolet coating is provided with an anti-aging coating.
3. The high-pressure resistant pneumatic gun tube according to claim 2, characterized in that: The second connector (3) includes a connector (301), the inside of which is provided with an annular groove (302), and a sealing ring (303) is installed inside the annular groove (302).
4. A high-pressure resistant pneumatic gun tube according to claim 3, characterized in that: The inner wall of the connecting frame (301) is provided with a circular hole, and the inner wall of the circular hole is provided with a threaded groove (304).
5. A high-pressure resistant pneumatic gun tube according to claim 1, characterized in that: The inner layer (101) is a nitrile rubber product, and the inner wall of the inner layer (101) is provided with an anti-corrosion layer (4) and a waterproof layer (5).
6. A high-pressure resistant pneumatic gun tube according to claim 3, characterized in that: The first connector (2) and the second connector (3) have the same structure and are symmetrically distributed on the left and right sides with the tube body (1) as the center.