A trailer air line protection device
By designing a trailer air hose protection device, and utilizing components such as steel rings, springs, and cable ties, the problems of air hose aging and foreign object damage are solved, achieving a stable connection and convenient maintenance of the air hose.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN LEDAO LOGISTICS CO LTD
- Filing Date
- 2025-10-10
- Publication Date
- 2026-07-28
AI Technical Summary
Trailer air hoses may become worn out after prolonged use or become ineffective in assisting the trailer brakes due to foreign objects entering the hoses. Existing technology lacks effective protective measures against this.
Design a trailer air hose protection device, which uses components such as steel rings, springs, cable ties and fixing blocks. Through the cooperation of sliders and plugs, a stable connection of the air hose is achieved, and the contraction of the spring assists the air hose to contract, avoiding aging problems.
It effectively protects the trachea from aging and damage from foreign objects, ensuring that the trachea remains stable during normal use and is easy to disassemble and maintain.
Smart Images

Figure CN224567015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air pipe protection technology, and in particular to an air pipe protection device for trailers. Background Technology
[0002] We know that the trailer bed cannot brake independently, so an air hose is needed to connect the trailer head and the trailer bed. In actual use, we have found that after a long period of operation, the air hose will age and lose its elasticity, or foreign objects may be ejected, which will cause the air hose to fail to effectively assist the trailer bed in braking. Therefore, we propose a trailer air hose protection device. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a trailer air pipe protection device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A trailer air hose protection device includes several steel rings. Several first springs are connected between adjacent steel rings. Each steel ring at both ends is connected to a fixing block by a connecting rope. A cable tie is fixed to each fixing block. The cable tie has equidistant positioning bosses. The fixing block has a first through hole, a second through hole, and a third through hole that are connected in sequence. The cable tie slides through the first through hole. A slider is slidably installed in the second through hole. A second spring is connected between the slider and the inner wall of the second through hole. An insert is fixed to the slider.
[0005] Preferably, both ends of the first spring are fixed with sleeves, and a T-shaped post is rotatably sleeved inside the sleeve. One end of the T-shaped post is fixed with a stud, and the stud is threaded onto the steel ring.
[0006] Preferably, the steel rings at both ends are fixed with L-shaped connecting seats.
[0007] Preferably, the cable tie is fixedly connected to the fixing block by screws.
[0008] Preferably, a lever is fixed on the slider.
[0009] Preferably, a cover plate is threaded into the first through hole, and the lever abuts against the cover plate.
[0010] Preferably, the insert is inserted between adjacent positioning bosses on the cable tie.
[0011] Preferably, the cable tie and the positioning boss are an integral structure.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the air pipe passes through the steel ring, and the steel rings at both ends are fixed to the front and the cargo box of the trailer where the air pipe is connected by the connecting seat; the cable tie is tied to the air pipe, and the slider is pulled by the lever, at which time the second spring is compressed. Then the cable tie is pulled out from the first through hole to tighten the air pipe. After it is in place, the lever is released and the insert is inserted between the two positioning bosses. It can be kept stable under the action of the second spring. At the same time, the cover plate can prevent the slider from loosening by pressing against the lever. In this way, during normal use, the steel ring can protect the air pipe. At the same time, the contraction of the first spring can assist the air pipe to contract, avoiding the problem of the air pipe being unable to contract due to aging. 2. In this utility model, the stud and the steel ring are connected by threads, which makes disassembly and assembly convenient and facilitates the replacement and maintenance of the first spring. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a trailer air pipe protection device proposed in this utility model; Figure 2 A cross-sectional view of the steel ring of a trailer air pipe protection device proposed in this utility model; Figure 3 This is a schematic diagram of the cable tie structure of a trailer air hose protection device proposed in this utility model; Figure 4 for Figure 3 A schematic diagram of a partial structure; Figure 5 This is a schematic diagram of the structure of the fixing block of the trailer air pipe protection device proposed in this utility model; Figure 6 This is a cross-sectional view of the fixing block of a trailer air pipe protection device proposed in this utility model.
[0014] In the diagram: 1. Steel ring, 2. Spring, 3. Connecting seat, 4. Connecting rope, 5. Cable tie, 6. Stud, 7. T-shaped post, 8. Sleeve, 9. Positioning boss, 10. Screw, 11. Fixing block, 111. First through hole, 112. Second through hole, 113. Third through hole, 12. Cover plate, 13. Insert block, 14. Toggle block, 15. Slider, 16. Spring. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0016] Reference Figure 1-6A trailer air hose protection device includes several steel rings 1. Several first springs 2 connect adjacent steel rings 1. The air hose passes through the steel rings 1. Each end of the steel rings 1 is connected to a fixing block 11 via a connecting rope 4. Cable ties 5 are fixed to the fixing blocks 11. The cable ties 5 have equidistantly arranged positioning bosses 9. The fixing blocks 11 have sequentially connected first through holes 111, second through holes 112, and third through holes 113. The cable ties 5 slide through the first through hole 111. A slider 15 is slidably installed in the second through hole 112. A second spring 16 connects the slider 15 to the inner wall of the second through hole 112. An insert block 13 is fixed to the slider 15. The cable ties 5 are tied to the air hose. A lever 14 pulls the slider 15, compressing the second spring 16. Then, the cable ties 5 are pulled out from the first through hole 111 to secure the air hose. Release the lever 14 and insert the insert 13 between the two positioning bosses 9. It can be kept stable under the action of the second spring 16. At the same time, the cover plate 12 can prevent the slider 15 from loosening by pressing against the lever 14. In this way, the steel ring 1 can protect the air pipe during normal use. At the same time, the contraction of the first spring 2 can assist the air pipe to contract, avoiding the problem of the air pipe being unable to contract due to aging. The steel ring 1 at both ends is fixed with an L-shaped connecting seat 3. The steel ring 1 at both ends is fixed to the front and the cargo box of the trailer where the air pipe is connected by the connecting seat 3. The cable tie 5 is fixedly connected to the fixing block 11 by the screw 10. The lever 14 is fixed on the slider 15. The cover plate 12 is threaded into the first through hole 111. The lever 14 abuts against the cover plate 12. The insert 13 is inserted between the adjacent positioning bosses 9 on the cable tie 5. The cable tie 5 and the positioning bosses 9 are an integral structure.
[0017] Reference Figure 2 Both ends of the first spring 2 are fixed with sleeves 8. A T-shaped post 7 is rotatably sleeved inside the sleeve 8. A stud 6 is fixed at one end of the T-shaped post 7. The stud 6 is threaded onto the steel ring 1. The stud 6 and the steel ring 1 are connected by threads, which makes disassembly and assembly convenient and facilitates the replacement and maintenance of the first spring 2.
[0018] Working principle: The air tube passes through the steel ring 1, and the steel rings 1 at both ends are fixed to the front and rear of the trailer where the air tube is connected via connecting seats 3. The cable tie 5 is tied to the air tube, and the slider 15 is pulled by the lever 14. At this time, the second spring 16 is compressed. Then the cable tie 5 is pulled out from the first through hole 111 to secure the air tube. After it is in place, the lever 14 is released, and the insert 13 is inserted between the two positioning bosses 9. It can be kept stable under the action of the second spring 16. At the same time, the cover plate 12 can prevent the slider 15 from loosening by pressing against the lever 14. In this way, the steel ring 1 can protect the air tube during normal use. At the same time, the contraction of the first spring 2 can assist the air tube to contract, avoiding the problem of the air tube being unable to contract due to aging. The stud 6 is connected to the steel ring 1 by threads, which is convenient for disassembly and assembly, and facilitates the replacement and maintenance of the first spring 2.
[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A trailer air hose protection device, comprising a steel ring (1), characterized in that, The steel ring (1) is provided in several ways. Several first springs (2) are connected between adjacent steel rings (1). The steel rings (1) at both ends are connected to fixed blocks (11) by connecting ropes (4). Cable ties (5) are fixed on the fixed blocks (11). Positioning bosses (9) are arranged at equal intervals on the cable ties (5). The fixed blocks (11) are provided with a first through hole (111), a second through hole (112), and a third through hole (113) that are connected in sequence. The cable ties (5) slide through the first through hole (111). A slider (15) is slidably installed in the second through hole (112). A second spring (16) is connected between the slider (15) and the inner wall of the second through hole (112). An insert (13) is fixed on the slider (15).
2. The trailer air hose protection device according to claim 1, characterized in that, Both ends of the first spring (2) are fixed with sleeves (8), and a T-shaped post (7) is rotatably sleeved inside the sleeve (8). One end of the T-shaped post (7) is fixed with a stud (6), and the stud (6) is threaded onto the steel ring (1).
3. The trailer air hose protection device according to claim 1, characterized in that, The steel rings (1) located at both ends are fixed with L-shaped connecting seats (3).
4. A trailer air hose protection device according to claim 1, characterized in that, The cable tie (5) is fixedly connected to the fixing block (11) by screws (10).
5. A trailer air hose protection device according to claim 1, characterized in that, A lever (14) is fixed on the slider (15).
6. A trailer air hose protection device according to claim 5, characterized in that, A cover plate (12) is threaded into the first through hole (111), and the lever (14) abuts against the cover plate (12).
7. A trailer air hose protection device according to claim 1, characterized in that, The insert (13) is inserted between adjacent positioning bosses (9) on the cable tie (5).
8. A trailer air hose protection device according to claim 1, characterized in that, The cable tie (5) and the positioning boss (9) are an integral structure.