Tractor gas circuit hitching device
By adding a three-way connector and a spiral tube to the tractor's air pipe joint, combined with palm-type and quick-plug connectors, the problem of poor universality of the air pipe interface between the tractor and the semi-trailer is solved, and quick connection and efficient transportation are achieved.
Patent Information
- Application Number
- CN202422967646.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-12-02
AI Technical Summary
The existing air pipeline interfaces of tractors and semi-trailers have poor universality, resulting in the inability to quickly match and connect them, affecting transportation efficiency.
A three-way connector is added to the air pipe joint of the tractor to connect the yellow spiral tube and the red spiral tube respectively, and is equipped with palm-type and quick-plug connectors to achieve compatibility of the two interface forms.
It realizes the rapid connection of semi-trailers with different interface forms, improving transportation efficiency and rhythm.
Smart Images

Figure CN223384447U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a hooking device, in particular to a pneumatic circuit hooking device for a tractor. Background Art
[0002] When connecting heavy-duty truck tractors to commercially available semi-trailers, the tractor's air line interface is a palm-type connector, while the commercially available semi-trailers have either quick-connect or palm-type connectors. This results in poor interoperability between the air line interfaces and prevents quick connection between the main trailer and the tractor. Utility Model Content
[0003] The present invention provides a universal solution for the pneumatic connection of a tractor, solving the existing problem that the pneumatic pipe interface when the tractor is connected to a semi-trailer is not universal, resulting in the main hook being unable to quickly match and connect.
[0004] The utility model is realized by the following technical solutions:
[0005] A tractor air circuit hitch device includes a bracket 1, a left bulkhead tee connector 2, a right bulkhead tee connector 3, a left yellow spiral tube 4, a right yellow spiral tube 5, a left red spiral tube 6, a right red spiral tube 7, a yellow-covered palm-type connector 8, a left quick-connect connector 9, a right quick-connect connector 10, and a red-covered palm-type connector 11;
[0006] The left bulkhead tee joint 2 is fixed on the bracket 1. The two ends of the left bulkhead tee joint 2 are connected to the left yellow spiral tube 4 and the right yellow spiral tube 5 through the nuts provided with the pipeline. The left yellow spiral tube 4 is connected to the yellow cover palm connector 8, and the right yellow spiral tube 5 is connected to the left quick-connect connector 9 to form the left control pipeline;
[0007] The two ends of the right bulkhead tee joint 3 are connected to the left red spiral tube 6 and the right red spiral tube 7 through the nuts provided with the pipeline. The left red spiral tube 6 is connected to the right quick-connect connector 10, and the right red spiral tube 7 is connected to the red cover palm-type connector 11 to form the right side air supply pipeline.
[0008] The utility model can quickly connect semi-trailers with two types of interfaces, thereby improving transportation efficiency and beat. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the present utility model. DETAILED DESCRIPTION
[0010] In accordance with the requirements for universality of the gas line connection method, the container tractor needs to retain both the palm-type connector and the quick-connect connector, and add a three-way connector at the original gas pipe joint to separate another gas pipe.
[0011] The utility model device consists of a bracket 1, a left bulkhead tee joint 2, a right bulkhead tee joint 3, a left yellow spiral tube 4, a right yellow spiral tube 5, a left red spiral tube 6, a right red spiral tube 7, a yellow-covered palm-type connector 8, a left quick-plug connector 9, a right quick-plug connector 10, and a red-covered palm-type connector 11.
[0012] Figure 1 The control pipeline on the left side is connected. The left bulkhead tee joint 2 is fixed on the bracket 1. The two ends of the left bulkhead tee joint 2 are connected to the left yellow spiral tube 4 and the right yellow spiral tube 5 through the nuts provided by the pipeline. The left yellow spiral tube 4 is connected to the yellow cover palm connector 8, and the right yellow spiral tube 5 is connected to the left quick connector 9, forming the lower Figure 1 The control line on the left retains both the palm-type connector and the quick-connect connector.
[0013] Figure 1 The right side of the gas supply pipeline is connected, and the two ends of the right bulkhead tee joint 3 are connected to the left red spiral tube 6 and the right red spiral tube 7 through the nuts provided by the pipeline. The left red spiral tube 6 is connected to the right quick-connect connector 10, and the right red spiral tube 7 is connected to the red cover palm connector 11, forming the lower Figure 1 The air supply line on the right retains both the palm-type connector and the quick-connect connector.
[0014] Currently, the trailer air pipe interface type used on tractors produced by heavy-duty truck manufacturers is a palm-type connector. This connector can only be connected to semi-trailers with palm-type connectors, resulting in slow loading and unloading, and transportation, affecting transportation schedules. By installing this device, it can be matched with various types of boxes, achieving fast connection and facilitating trailer replacement and transportation.
Claims
1. A tractor air circuit hitch device, characterized by: It comprises a bracket (1), a left bulkhead tee connector (2), a right bulkhead tee connector (3), a left yellow spiral tube (4), a right yellow spiral tube (5), a left red spiral tube (6), a right red spiral tube (7), a yellow cover palm-type connector (8), a left quick-connect connector (9), a right quick-connect connector (10) and a red cover palm-type connector (11); The left bulkhead tee joint (2) is fixed on the bracket (1), and the two ends of the left bulkhead tee joint (2) are connected to the left yellow spiral tube (4) and the right yellow spiral tube (5) through the nuts provided with the pipeline. The left yellow spiral tube (4) is connected to the yellow cover palm connector (8), and the right yellow spiral tube (5) is connected to the left quick connector (9), thereby forming the left control pipeline; The two ends of the right bulkhead three-way joint (3) are connected to the left red spiral tube (6) and the right red spiral tube (7) through the nuts provided with the pipeline. The left red spiral tube (6) is connected to the right quick-connect connector (10), and the right red spiral tube (7) is connected to the red cover palm connector (11), thereby forming the right air supply pipeline.