Cylinder cover airtightness detector rear-blocking device

A technology of air tightness detection and cylinder head, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, etc., which can solve the problems of failing to achieve the detection effect, affecting the detection accuracy, and unfavorable blockage Problems such as head blocking effect

Inactive Publication Date: 2015-06-24
重庆鼎昊机电设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to block the cylinder head hole, the cylinder pushes the plug usually to be compressed. There is a hole on the rear surface of the cylinder head, but the holes of different cylinder heads are of different sizes. The head needs to be disassembled and assembled during inspection, which is time-consuming and labor-intensive. If a large-sized plug is used directly

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  • Cylinder cover airtightness detector rear-blocking device
  • Cylinder cover airtightness detector rear-blocking device

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Embodiment Construction

[0014] Such as figure 1 , figure 2 As shown, the present invention provides a rear plugging device for a cylinder head air tightness tester. The device is arranged on a workbench and includes a cylinder 1, a reversing valve 2, a connecting shell 5, an air chamber 6, a multi-purpose plug 7, and a reversing valve. One end of the valve 2 is connected to the piston rod of the cylinder 1, the other end of the reversing valve 2 is connected to the connecting shell 5, the connecting shell 5 is connected to the air chamber 6, and the air chamber 6 is connected to the multi-purpose plug 7, and the multi-purpose plug 7 The plugging end of the hole is provided with a silica gel cap 8, and the multi-purpose plug 7 is composed of a small plug 71, a middle plug 72, and a large plug 73. The small plug 71 is located at the innermost layer of the multi-purpose plug 7 and is cylindrical. The middle plug 72 fits on the outer surface of the small plug 71 and is a hollow cylinder, the large plug...

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Abstract

The invention relates to the field of cylinder cover airtightness detection, in particular to a cylinder cover airtightness detector rear-blocking device. The cylinder cover airtightness detector rear-blocking device comprises a multi-purpose end plug, an air chamber, an air pipe, a reversing valve and a cylinder. The whole device is simple in structure; by means of the connection mode of one air pipe, one switch, one air chamber and one end plug, the corresponding end plug and the corresponding air chamber are selected and the corresponding air pipe is opened according to the size of rear holes of cylinder covers, pressurized air passes through the reversing valve and the air pipe, enters the air chamber and then pushes the end plug after entering the air chamber, and therefore the aim of blocking rear holes of different cylinder covers is achieved.

Description

technical field [0001] The invention relates to the field of cylinder head air tightness detection, in particular to a rear blocking device of a cylinder head air tightness detector. Background technique [0002] The cylinder head of the engine has very strict requirements on air tightness. Before leaving the factory, it is necessary to test the air tightness parameters. Only products with good performance and qualified inspection can be sold. To test the air tightness of the cylinder head, usually use Dry-type sealing inspection method, that is, the cylinder head is positioned on the workbench, the hole on the cylinder head is blocked, and the cylinder head is ventilated, and the air pressure of the cylinder head is detected by observing the difference between the air pressure after the gas is stabilized and the input air pressure. tightness. [0003] In order to block the cylinder head hole, the cylinder pushes the plug usually to be compressed. There is a hole on the rea...

Claims

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Application Information

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IPC IPC(8): G01M3/32
Inventor 胡培林
Owner 重庆鼎昊机电设备有限公司
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