Detection device of natural vacuum leakage detector

Abstract

The utility model discloses a detection device of a natural vacuum leakage detector, and belongs to the field of detection devices of natural vacuum leakage detectors for automobile carbon tanks. Comprising a detection table, a natural vacuum leakage detector placing seat, a current detection meter, a connecting pipe and a venturi device, the natural vacuum leakage detector placing seat is fixed on a detection table top, the current detection meter is located on the detection table, a detection end of the current detection meter is electrically connected with a circuit of a detected natural vacuum leakage detector, and the venturi device is connected with the natural vacuum leakage detector placing seat. The connecting pipe is fixed on the detection table through a bracket, one end of the connecting pipe is communicated with a detection port of the detected natural vacuum leakage detector, and the other end of the connecting pipe is communicated with the Venturi device through a pipeline. According to the utility model, before the natural vacuum leakage detector leaves the factory, quality detection is carried out, and unqualified products do not leave the factory, so that the problem of product recall caused by leaving the factory of the unqualified products is avoided, a large amount of manpower resource waste is avoided, and the after-sale cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of detection devices of natural vacuum leakage detectors for automobile carbon canisters, in particular to a detection device of the natural vacuum leakage detector. Background Art

[0002] The natural vacuum leak detector is installed at the atmospheric port of the car carbon canister to detect the car carbon canister.

[0003] At present, natural vacuum leak detectors are not tested before leaving the factory and are directly installed on the car's carbon canister. When an unqualified natural vacuum leak detector is installed on a car's carbon canister, if a malfunction occurs after leaving the factory, the car will generally be recalled and replaced with a new natural vacuum leak detector. This wastes a lot of human resources and increases after-sales costs. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that natural vacuum leak detectors are not tested before leaving the factory, unqualified products flow into the hands of users, resulting in car recalls, a large amount of human resources wasted and increased after-sales costs, and to provide a detection device for natural vacuum leak detectors.

[0005] A detection device for a natural vacuum leak detector includes a detection platform, a natural vacuum leak detector placement seat, a current detection meter, a connecting pipe, and a Venturi device. The natural vacuum leak detector placement seat is fixed on the detection platform, the current detection meter is located on the detection platform, the detection end of the current detection meter is electrically connected to the circuit of the natural vacuum leak detector to be tested, the connecting pipe is fixed to the detection platform through a bracket, one end of the connecting pipe is connected to the detection port of the natural vacuum leak detector to be tested, and the other end of the connecting pipe is connected to the Venturi device through a pipeline.

[0006] The connecting pipe is fixed on the bracket through a first nut and a second nut.

[0007] The current detection meter and the Venturi device are prior art, and the Venturi device is a device for generating negative pressure.

[0008] Working process and principle of this utility model:

[0009] Place the natural vacuum leak detector to be tested in the natural vacuum leak detector placement seat, electrically connect the detection end of the current detection meter to the circuit of the natural vacuum leak detector to be tested, connect the detection port of the natural vacuum leak detector to one end of the connecting pipe, and connect the other end of the connecting pipe to the Venturi device.

[0010] Then, start the Venturi device to generate negative pressure inside the natural vacuum leak detector under test. The current detection meter measures the current in the circuit of the natural vacuum leak detector under test. If the current reaches or exceeds the set current value, the natural vacuum leak detector under test is judged to be qualified. Otherwise, the natural vacuum leak detector under test is judged to be unqualified.

[0011] Beneficial effects of the utility model:

[0012] The utility model performs quality inspection on the natural vacuum leak detector before leaving the factory, and unqualified products are not shipped out, thus avoiding the problem of product recall caused by unqualified products leaving the factory, avoiding a large amount of human resource waste and reducing after-sales costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0014] Figure 2 It is a three-dimensional schematic diagram of the connecting pipe fixing structure of an embodiment of the present utility model. DETAILED DESCRIPTION

[0015] like Figure 1 As shown, a detection device for a natural vacuum leak detector includes a detection platform 1, a natural vacuum leak detector placement seat 2, a current detection meter 3, a connecting pipe 4, and a Venturi device 5. The natural vacuum leak detector placement seat 2 is fixed on the surface of the detection platform 1, the current detection meter 3 is located on the detection platform 1, the detection end of the current detection meter 3 is electrically connected to the circuit of the natural vacuum leak detector A to be tested, the connecting pipe 4 is fixed to the detection platform 1 through a bracket 6, one end of the connecting pipe 4 is connected to the detection port of the natural vacuum leak detector A to be tested, and the other end of the connecting pipe 4 is connected to the Venturi device 5 through a pipeline 7.

[0016] like Figure 2 As shown, the connecting pipe 4 is fixed to the bracket 6 via a first nut 8 and a second nut 9 .

[0017] The current detection meter 3 and the Venturi device 5 are prior art, and the Venturi device 5 is a device for generating negative pressure.

[0018] The working process and principle of this embodiment:

[0019] like Figure 1 and Figure 2 As shown, the natural vacuum leak detector A to be tested is placed in the natural vacuum leak detector placement seat 2, the detection end of the current detection meter 3 is electrically connected to the circuit of the natural vacuum leak detector A to be tested, the detection port of the natural vacuum leak detector A to be tested is connected to one end of the connecting tube 4, and the other end of the connecting tube 4 is connected to the Venturi device 5.

[0020] Then, the Venturi device 5 is started to generate negative pressure inside the natural vacuum leak detector A under test. The current detection meter 3 measures the current in the circuit of the natural vacuum leak detector A under test. If the current reaches or exceeds the set current value, the natural vacuum leak detector A under test is judged to be qualified. Otherwise, the natural vacuum leak detector A under test is judged to be unqualified.

Claims

1. A detection device for a natural vacuum leak detector, characterized in that: The invention comprises a detection platform (1), a natural vacuum leak detector placement seat (2), a current detection meter (3), a connecting pipe (4), and a Venturi device (5). The natural vacuum leak detector placement seat (2) is fixed on the surface of the detection platform (1), the current detection meter (3) is located on the detection platform (1), the detection end of the current detection meter (3) is electrically connected to the circuit of the natural vacuum leak detector (A) to be tested, the connecting pipe (4) is fixed to the detection platform (1) through a bracket (6), one end of the connecting pipe (4) is connected to the detection port of the natural vacuum leak detector (A) to be tested, and the other end of the connecting pipe (4) is connected to the Venturi device (5) through a pipeline (7).

2. The detection device of a natural vacuum leak detector according to claim 1, characterized in that: The connecting pipe (4) is fixed to the bracket (6) via a first nut (8) and a second nut (9).

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