A commercial vehicle gas extraction connector

Abstract

The utility model discloses a commercial vehicle air intake connector, comprising an air intake connector housing (1) and an air intake valve (6). The air intake connector housing (1) has two pressure air connection ports (5) and an air intake valve connection port (2) on the outside. The air intake connector housing (1) has an ellipsoidal inner cavity inside, wherein the ellipsoidal inner cavity is connected to a pressure stabilizing cavity (3) via a pressure stabilizing hole (4) at the bottom of the pressure stabilizing cavity (3). The top of the pressure stabilizing cavity (3) is an air intake valve connection port (2), and the air intake valve connection port (2) is fixedly connected to an air intake valve (6). The utility model provides a commercial vehicle air intake connector with a simple structure, which can not only test the pressure while the whole vehicle is moving, but also has a simple, effective and direct testing method.

Description

Technical Field

[0001] The utility model belongs to a pressure air pipeline connector used in a commercial vehicle brake system, in particular to an air intake connector for a commercial vehicle. Background Art

[0002] The pressure air pipeline connectors on the commercial vehicle brake system currently available on the market, such as Figure 1 As shown, it usually only has the functions of pressure fluid transmission and cooling and heat dissipation, and cannot monitor the internal fluid pressure of the brake hard pipe in real time. It is used to connect the pressure air pipeline between the air compressor and the air dryer. Limited by the existing pressure air pipeline structure, if the pressure needs to be measured, the pressure air pipeline needs to be disassembled, and the testing process is complicated. In addition, this method will interrupt the function of the pressure air pipeline to transmit compressed air, which has a huge impact on the braking function of the whole vehicle. It is also impossible to continuously test the whole vehicle while it is moving, and the pressure cannot be directly and accurately measured from other positions. Therefore, the existing structure leads to a lack of simple, effective and direct testing methods for the pressure test of the pressure air pipeline. Summary of the invention

[0003] The utility model aims to provide a commercial vehicle air intake connector with a simple structure, which can not only test the pressure while the whole vehicle is moving, but also has a simple, effective and direct testing method.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a commercial vehicle air intake connector, including an air intake connector shell, an air intake valve, the outside of the air intake connector shell is provided with two pressure air connection ports and one air intake valve connection port, the interior of the air intake connector shell is an ellipsoidal inner cavity, the ellipsoidal inner cavity is connected to the pressure stabilizing cavity through a pressure stabilizing hole at the bottom of the pressure stabilizing cavity, wherein the top of the pressure stabilizing cavity is the air intake valve connection port, and the air intake valve connection port is fixedly connected to an air intake valve.

[0005] Furthermore, the two pressure air connection ports form a straight-through interface through the ellipsoidal inner cavity of the air intake connector housing.

[0006] Furthermore, the central axis of the two pressure air connection ports is perpendicular to the central axis of the air intake valve connection port.

[0007] Furthermore, the diameter of the voltage-stabilizing hole is 1 to 0.5 mm.

[0008] Furthermore, the external thread of the air extraction valve connection port is fixedly connected to the air extraction valve via threads.

[0009] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model provides a commercial vehicle air intake connector with a simple structure, which can not only test the pressure while the vehicle is moving, but also has a simple, effective and direct testing method. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic cross-sectional structure diagram of a pressure air pipeline connector in the prior art;

[0011] Figure 2 This is a three-dimensional structural schematic diagram of a commercial vehicle air intake connector of the utility model;

[0012] Figure 3 It is a cross-sectional structural schematic diagram of a gas intake connector shell for a commercial vehicle of the utility model;

[0013] Figure 4 The utility model is a schematic diagram of pressure air pipeline connection of an air intake joint for a commercial vehicle.

[0014] As shown in the figure: 1-air intake connector, 2-air intake valve connection port, 3-pressure stabilizing chamber, 4-pressure stabilizing hole, 5-pressure air connection port, 6-air intake valve, 7-vehicle air compressor, 8-pressure air pipeline, 9-pressure testing equipment, 10-vehicle air dryer. DETAILED DESCRIPTION

[0015] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0016] like Figures 2 to 3 As shown, a commercial vehicle air intake connector includes an air intake connector shell 1 and an air intake valve 6. The air intake connector shell 1 has two pressure air connection ports 5 and an air intake valve connection port 2 on the outside. The air intake connector shell 1 has an ellipsoidal inner cavity inside. The ellipsoidal inner cavity is connected to a pressure stabilizing cavity 3 through a pressure stabilizing hole 4 at the bottom of the pressure stabilizing cavity 3, wherein the top of the pressure stabilizing cavity 3 is an air intake valve connection port 2, and the air intake valve connection port 2 is fixedly connected to an air intake valve 6.

[0017] like Figure 3 to Figure 4 As shown, in this embodiment, two pressure air connection ports 5 form a straight-through interface through the ellipsoidal inner cavity of the air intake connector housing 1; one of the pressure air connection ports 5 is connected to the pressure air pipeline 8 of the vehicle-mounted air compressor 7, and the other pressure air connection port 5 is connected to the pressure air pipeline 8 of the vehicle-mounted air dryer 10.

[0018] like Figure 3 As shown, in this embodiment, the central axis of the two pressure air connection ports 5 is perpendicular to the central axis of the air intake valve connection port 2.

[0019] like Figure 3As shown, in the present embodiment, the diameter of the pressure-stabilizing hole 4 is 1 to 0.5 mm; in the present embodiment, the pressure-stabilizing chamber 3 realizes the pressure stability of the pressure air in the pressure-stabilizing chamber 3 through the small-aperture pressure-stabilizing effect of the pressure-stabilizing hole 4. During the implementation process, when the diameter of the pressure-stabilizing hole 4 is 1 mm and 0.5 mm, the pressure value of the pressure air in the pressure-stabilizing chamber 3 is stable. If the pressure-stabilizing hole 4 is smaller than 0.5 mm, it is easy for the pressure-stabilizing hole 4 to be blocked by foreign matter.

[0020] like Figure 2 As shown, in the present embodiment, the external thread of the air intake valve connection port 2 is fixedly connected to the air intake valve 6 by threads; wherein the air intake valve 6 is a standard vehicle part, and its connector specification is a universal connector, and a protective cover is provided on the connector at the other end thereof to achieve effective sealing, thereby ensuring that the internal pressure of the pipeline is not lost. When in working state, the protective cover of the air intake valve 6 is opened, and the interface of the air intake valve 6 is fixedly connected to the connector of the pressure testing equipment 9 by threads, so that the pressure in the braking system of a commercial vehicle in working condition can be directly tested.

[0021] The specific working principle of this utility model:

[0022] First, the pressure air pipeline 8 of the onboard air compressor 7 of the commercial vehicle is fixedly connected to a pressure air connection port 5 of the air intake connector housing 1 by means of threads, and the other pressure air connection port 5 of the air intake connector housing 1 is fixedly connected to the pressure air pipeline 8 at the input end of the onboard air dryer 10 by means of threads, and the pressure air pipeline 8 at the output end of the onboard air dryer 10 is connected to the pressure air pipeline on the brake system of the commercial vehicle;

[0023] Then open the protective cover of the air extraction valve 6, and connect the interface of the air extraction valve 6 to the joint of the pressure testing equipment 9 by screw thread; the air extraction valve 6 is a standard vehicle part, and its joint specification is a universal joint. When testing is required, it can be connected to the joint of the pressure testing equipment 9. When testing is not required, close the protective cover of the air extraction valve 6 to achieve effective sealing and ensure that the internal pressure of the pipeline is not lost;

[0024] Finally, the commercial vehicle is started, and the on-board air compressor 7 of the commercial vehicle starts to work, and the pressurized air is input into the pipeline of the commercial vehicle braking system through the pressurized air pipeline 8, wherein the pressurized air through the ellipsoidal inner cavity of the air intake joint 1 is input into the pressure stabilizing chamber 3 through the pressure stabilizing hole 4, and the pressurized air in the pressure stabilizing chamber 3 is connected with the pressure testing equipment 9 through the air intake valve 6, so that the pressure testing equipment 9 can simply, effectively and directly test the pressure in the commercial vehicle braking system under working conditions; wherein the pressure stabilizing chamber 3 realizes the pressure stability of the pressurized air in the pressure stabilizing chamber 3 through the small-aperture pressure stabilizing effect of the pressure stabilizing hole 4, thereby avoiding the pulsating pressure value of the air compressor affecting the measurement accuracy of the pressure testing equipment.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any simple modification, equivalent replacement, improvement, etc. made within the technical concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A commercial vehicle air intake connector, characterized in that: The invention comprises an air intake connector shell (1) and an air intake valve (6). The air intake connector shell (1) has two pressure air connection ports (5) and an air intake valve connection port (2) on the outside. The air intake connector shell (1) has an ellipsoidal inner cavity inside. The ellipsoidal inner cavity is connected to a pressure stabilizing cavity (3) via a pressure stabilizing hole (4) at the bottom of the pressure stabilizing cavity (3). The top of the pressure stabilizing cavity (3) is an air intake valve connection port (2). The air intake valve connection port (2) is fixedly connected to an air intake valve (6).

2. A commercial vehicle air intake connector according to claim 1, characterized in that: The two pressure air connection ports (5) form a straight-through interface through the ellipsoidal inner cavity of the air intake connector housing (1).

3. A commercial vehicle air intake connector according to claim 2, characterized in that: The central axes of the two pressure air connection ports (5) are perpendicular to the central axis of the air intake valve connection port (2).

4. A commercial vehicle air intake connector according to claim 3, characterized in that: The diameter of the voltage-stabilizing hole (4) is 1 to 0.5 millimeters.

5. A commercial vehicle air intake connector according to any one of claims 1 to 4, characterized in that: The external thread of the air extraction valve connection port (2) is fixedly connected to the air extraction valve (6) via threads.

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