Anti-rust air brake steel pipe

Abstract

The utility model relates to the technical field of air brake steel pipes, and discloses an anti-corrosion air brake steel pipe which comprises an air brake steel pipe body and a connecting ring, fixing rings are fixedly arranged at the two ends of the air brake steel pipe body, and the outer surface of the air brake steel pipe body is coated with an anti-corrosion coating. The threaded caps are aligned and inserted into the corresponding connecting rings, then the threaded caps are rotated to rotate the hemispheroid clamping blocks into the corresponding spherical clamping grooves in the connecting rings, at the moment, the hemispheroid clamping blocks are connected with the corresponding spherical clamping grooves in a clamped mode under the springback effect of the springs, and rapid installation of the air brake steel pipe is achieved. By rotating the fixing ring, the hemispheroid clamping block is separated from the spherical clamping groove and retracts into the mounting groove again to complete unlocking, and then the air brake steel pipe can be rapidly disassembled; the anti-corrosion coating has good adhesive force and abrasion resistance, the air brake steel pipe can be effectively protected from being affected by the external environment, meanwhile, the air brake steel pipe can be effectively prevented from being corroded, and the service life of the air brake steel pipe is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air brake steel pipes, in particular to an anti-corrosion air brake steel pipe. Background Art

[0002] The air brake system, also known as the pneumatic brake system, is a braking system that uses compressed air as its power source and is widely used in heavy vehicles such as large trucks and trailers. This system uses an engine-driven air compressor to generate high-pressure air, which is stored in an air reservoir. When the driver presses the brake pedal, the compressed air is fed into the brake chamber through a series of control valves, pushing the brake shoes or discs into contact with the wheels, generating braking force. Air brake pipes play a crucial role in this process. They are the pipes that connect key components such as the air reservoir, master brake cylinder, relay valve, and brake slave cylinder, ensuring that compressed air flows smoothly and efficiently to where it is needed.

[0003] A Chinese patent discloses an air brake tube for automobiles, with publication number CN109578749A, comprising an air brake tube body, a connector fixedly connected to the top of the air brake tube body, a connecting shaft fixedly connected to one side of the connector, a fixing sleeve sleeved on the outer surface of the connector head, fixing rubber rings fixedly connected on both sides of the fixing sleeve, and a fixing head sleeved on the outer surface of the connecting shaft.

[0004] The above-mentioned air brake tube has a good sealing effect and is easy to disassemble and assemble. However, the threaded connection at both ends of the air brake tube reduces the efficiency of disassembly and assembly of the air brake tube and increases the operating labor. In addition, the air brake tube is easily corroded due to long-term exposure to a humid environment during use, resulting in a decrease in its strength and even leakage, which seriously affects the safety performance of the vehicle. Therefore, it is necessary to provide a rust-resistant air brake steel tube. Summary of the Invention

[0005] The purpose of the utility model is to provide an anti-corrosion air brake steel pipe to solve the problems that the existing air brake pipe is not convenient for quick disassembly and assembly and has no anti-corrosion function.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rust-proof air brake steel pipe, comprising an air brake steel pipe and a connecting ring, wherein both ends of the air brake steel pipe are fixedly provided with a fixing ring, and the outer surface of the air brake steel pipe is coated with an anti-rust coating; the fixing ring is fixedly connected to the end away from the air brake steel pipe with a threaded ring, and a threaded cap is threadedly connected to the threaded ring, and a mounting groove is provided on the threaded cap, and a spring is fixedly provided in the mounting groove, and a hemispherical clamping block is fixedly provided on the spring, and the hemispherical clamping block is slidably connected to the mounting groove, and a spherical clamping groove adapted to the hemispherical clamping block is provided in the connecting ring, and the spherical clamping groove is slidably clamped to the hemispherical clamping block.

[0007] Preferably, the threaded cap is provided with a plurality of mounting grooves, and the connecting ring is provided with a spherical groove having a number corresponding to the mounting grooves.

[0008] Preferably, the threaded cap is slidably plugged into the connecting ring, and the hemispherical block is extrusion-slidably connected to the connecting ring.

[0009] Preferably, the connecting ring is fixedly arranged on the equipment pipe joint connected to the air brake steel pipe.

[0010] Preferably, the anti-corrosion coating consists of epoxy resin, polyamide resin, silicon dioxide, zinc phosphate and organic solvent.

[0011] Preferably, the thickness of the anti-corrosion coating is 0.1-0.3 mm.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1) The rust-proof air brake steel pipe is made by aligning and inserting the threaded cap into the corresponding connecting ring. When the threaded cap and the connecting ring are plugged in, the hemispherical block is squeezed and compressed into the installation groove. At this time, the spring is in a compressed state. Then, the threaded cap is rotated to rotate the hemispherical block into the corresponding spherical groove in the connecting ring. At this time, the hemispherical block automatically pops out of the installation groove under the rebound action of the spring and engages with the corresponding spherical groove, thereby realizing rapid installation of the air brake steel pipe; by rotating the fixing ring in the opposite thread direction of the threaded cap and the threaded ring, the hemispherical block can be disengaged from the spherical groove and retracted into the installation groove to complete unlocking. After that, the connecting ring and the threaded cap can be easily separated to realize rapid disassembly of the air brake steel pipe, thereby significantly improving the disassembly and assembly efficiency of the air brake steel pipe.

[0014] 2) The anti-corrosion air brake steel pipe has an anti-corrosion coating which is obtained by uniformly mixing epoxy resin, polyamide resin, silicon dioxide, zinc phosphate and organic solvent in a certain proportion, and then coating the mixture on the surface of the air brake steel pipe by spraying. After the coating dries, an air brake steel pipe with anti-corrosion function can be obtained. The anti-corrosion coating has good adhesion and wear resistance, can effectively protect the air brake steel pipe from the influence of the external environment, and can effectively prevent the air brake steel pipe from being corroded, thereby greatly extending the service life of the air brake steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of an anti-corrosion air brake steel pipe in an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the separation structure of the air brake steel pipe, threaded ring and connecting ring in the embodiment of the present utility model;

[0017] Figure 3This is a schematic cross-sectional view of a threaded cap in an embodiment of the present utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the air brake steel pipe in an embodiment of the present utility model.

[0019] In the figure: 1. Air brake steel pipe; 2. Connecting ring; 3. Fixing ring; 4. Threaded ring; 5. Threaded cap; 6. Mounting groove; 7. Spring; 8. Hemispherical clamping block; 9. Spherical clamping groove; 10. Anti-corrosion coating. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Combine Figure 1-Figure 4 A rust-proof air brake steel pipe includes an air brake steel pipe 1 and a connecting ring 2. The connecting ring 2 is fixedly arranged on the equipment pipe joint connected to the air brake steel pipe 1. Fixed rings 3 are fixedly arranged at both ends of the air brake steel pipe 1. The outer surface of the air brake steel pipe 1 is coated with an anti-corrosion coating 10. The anti-corrosion coating 10 is composed of epoxy resin, polyamide resin, silicon dioxide, zinc phosphate and organic solvent. The thickness of the anti-corrosion coating 10 is 0.1-0.3mm.

[0022] Specifically, the anti-corrosion coating 10 on the air brake steel pipe 1 is made by uniformly mixing epoxy resin, polyamide resin, silica, zinc phosphate and organic solvent in a certain proportion, and then coating it on the surface of the air brake steel pipe 1 by spraying. After the coating dries, the air brake steel pipe 1 with anti-corrosion function can be obtained. The anti-corrosion coating 10 has good adhesion and wear resistance, and can effectively protect the air brake steel pipe 1 from the influence of the external environment. At the same time, it can effectively prevent the air brake steel pipe 1 from being corroded, greatly extending the service life of the air brake steel pipe 1.

[0023] See Figure 2 and Figure 3, it is further obtained that the end of the fixing ring 3 away from the air brake steel pipe 1 is fixedly connected with a threaded ring 4, and a threaded cap 5 is threadedly connected to the threaded ring 4. A mounting groove 6 is provided on the threaded cap 5, and a spring 7 is fixedly provided in the mounting groove 6. A hemispherical clamping block 8 is fixedly provided on the spring 7. The hemispherical clamping block 8 is slidingly connected to the mounting groove 6. A spherical clamping groove 9 adapted to the hemispherical clamping block 8 is provided in the connecting ring 2. The spherical clamping groove 9 is slidingly clamped with the hemispherical clamping block 8. A number of mounting grooves 6 are provided on the threaded cap 5, and a number of spherical clamping grooves 9 corresponding to the mounting grooves 6 are provided in the connecting ring 2. The threaded cap 5 is slidingly plugged into the connecting ring 2, and the hemispherical clamping block 8 is extruded and slidably connected to the connecting ring 2.

[0024] Specifically, by aligning and inserting the threaded cap 5 into the corresponding connecting ring 2, when the threaded cap 5 is plugged into the connecting ring 2, the hemispherical block 8 is squeezed and compressed into the installation groove 6. At this time, the spring 7 is in a compressed state. Then, the threaded cap 5 is rotated to rotate the hemispherical block 8 into the corresponding spherical groove 9 in the connecting ring 2. At this time, the hemispherical block 8 automatically pops out from the installation groove 6 under the rebound action of the spring 7 and engages with the corresponding spherical groove 9, thereby realizing the rapid installation of the air brake steel pipe 1; by rotating the fixing ring 3 in the opposite thread direction of the threaded cap 5 and the threaded ring 4, the hemispherical block 8 can be disengaged from the spherical groove 9 and retracted into the installation groove 6 to complete the unlocking. After that, the connecting ring 2 and the threaded cap 5 can be easily separated, thereby realizing the rapid disassembly of the air brake steel pipe 1, which significantly improves the disassembly and assembly efficiency of the air brake steel pipe 1.

[0025] In actual operation, both ends of the air brake steel pipe 1 are processed into a structure capable of accommodating the fixing ring 3, and then the fixing ring 3 is welded or fixed to the air brake steel pipe 1 by other means. Then, the threaded cap 5 with a locking structure is threadedly connected to the threaded ring 4 on the fixing ring 3, and the connecting ring 2 is fixedly welded to the pipe interface of the device connected to the air brake cylinder pipe 1;

[0026] When installing the air brake steel pipe 1, it is only necessary to align the threaded cap 5 and insert it into the corresponding connecting ring 2. When the threaded cap 5 is plugged into the connecting ring 2, the hemispherical clamping block 8 is squeezed and compressed into the installation groove 6. At this time, the spring 7 is in a compressed state. Then, the threaded cap 5 is rotated to rotate the hemispherical clamping block 8 into the corresponding spherical clamping groove 9 in the connecting ring 2. At this time, the hemispherical clamping block 8 automatically pops out of the installation groove 6 under the rebound action of the spring 7 and clamps with the corresponding spherical clamping groove 9, thereby realizing the rapid installation of the air brake steel pipe 1;

[0027] When disassembling the air brake steel pipe 1, it is only necessary to rotate the threaded cap 5 and the threaded ring 4 in the opposite direction of the threads to disengage the hemispherical clamping block 8 from the spherical clamping groove 9 and retract it into the installation groove 6 to complete the unlocking. After that, the connecting ring 2 and the threaded cap 5 can be easily separated, realizing the rapid disassembly of the air brake steel pipe 1;

[0028] The anti-corrosion coating 10 on the air brake steel pipe 1 is made by uniformly mixing epoxy resin, polyamide resin, silica, zinc phosphate and organic solvent in a certain proportion, and then coating it on the surface of the air brake steel pipe 1 by spraying. After the coating dries, the air brake steel pipe 1 with anti-corrosion function can be obtained. The anti-corrosion coating 10 has good adhesion and wear resistance, and can effectively protect the air brake steel pipe 1 from the influence of the external environment. At the same time, it can effectively prevent the air brake steel pipe 1 from being corroded, greatly extending the service life of the air brake steel pipe 1.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant air brake steel pipe, comprising an air brake steel pipe (1) and a connecting ring (2), characterized in that: Both ends of the air brake steel pipe (1) are fixedly provided with fixing rings (3), and the outer surface of the air brake steel pipe (1) is coated with an anti-corrosion coating (10); The fixing ring (3) is fixedly connected to one end away from the air brake steel pipe (1) with a threaded ring (4), the threaded ring (4) is threadedly connected to a threaded cap (5), the threaded cap (5) is provided with a mounting groove (6), a spring (7) is fixedly provided in the mounting groove (6), a hemispherical clamping block (8) is fixedly provided on the spring (7), the hemispherical clamping block (8) is slidably connected to the mounting groove (6), a spherical clamping groove (9) adapted to the hemispherical clamping block (8) is provided in the connecting ring (2), and the spherical clamping groove (9) is slidably clamped to the hemispherical clamping block (8).

2. The corrosion-resistant air brake steel tube according to claim 1, characterized in that: The threaded cap (5) is provided with a plurality of mounting grooves (6), and the connecting ring (2) is provided with a corresponding number of spherical slots (9) as the number of the mounting grooves (6).

3. The corrosion-resistant air brake steel tube according to claim 1, characterized in that: The threaded cap (5) is connected to the connecting ring (2) in a sliding manner, and the hemispherical block (8) is connected to the connecting ring (2) in an extrusion-sliding manner.

4. The corrosion-resistant air brake steel tube according to claim 1, characterized in that: The connecting ring (2) is fixedly arranged on an equipment pipe joint connected to the air brake steel pipe (1).

5. The corrosion-resistant air brake steel tube according to claim 1, characterized in that: The thickness of the anti-corrosion coating (10) is 0.1-0.3 mm.

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