Positioning and mounting fixture for knock sensor

Abstract

The invention relates to a positioning and mounting fixture for a knock sensor, which comprises a fixture body and is characterized in that the fixture body is cylindrical, one side of the fixture body is provided with a limiting notch penetrating through a cylinder, and one end part of the fixture body is provided with a plurality of bayonets. A plurality of bayonets on one end part of the clampbody are respectively clamped with a plurality of reinforcing ribs on an engine in a one-to-one correspondence manner, and the plurality of reinforcing ribs are positioned around a mounting hole of aknock sensor arranged on the engine. The direction of the knock sensor wire harness connector can be fixed, wire harness plugging is facilitated, and the assembling quality is guaranteed; installationoperation of the knock sensor can be simplified, the knock sensor can be installed in place at a time, assembly time is shortened, and assembly cost is reduced.

Description

technical field [0001] The invention relates to an engine, in particular to a positioning and installation fixture for a knock sensor. Background technique [0002] The knock sensor is installed between the engine cylinders. Take the four-cylinder engine as an example, one is installed between the second cylinder and the third cylinder, or one is installed between the first cylinder and the second cylinder, or between the three cylinders and the four cylinders. Install one to measure engine jitter and adjust ignition advance angle when the engine knocks. Knock sensor is an important signal acquisition component of automobile engine, and its assembly quality directly affects the electronic control performance of the engine. In order to ensure the signal acquisition function of the knock sensor during engine operation, it is necessary to ensure that there is no quality risk in the assembly process, that is, it is accurately installed in place, and it is correctly plugged into...

AI Technical Summary

Problems solved by technology

Due to the particularity of the structure of the knock sensor, after tightening the fixing bolts, it cannot be fixed in the same direction, resulting in difficulty in connecting the wiring harness

[0003] The traditional method uses manual support and fixes its direction by hand while tightening the fixing bolts, which easily leads to the following risks:

[0004] (1) The direction of manual fixation cannot be unified, resulting in difficulty in connecting the wiring harness;

[0005] (2) When tightening, the operator can only hold the tightening tool with one hand. During the tightening process, the tightening tool is easy to fall off and damage other parts of the engine;

[0006] (3) It cannot be installed in place at one time, and repeated adjustments are required, resulting in a long installation cycle

But not suitable for knock sensor installation

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