A positioning and installation fixture for knock sensor

Abstract

The invention relates to a positioning installation fixture for a knock sensor, comprising a fixture body, characterized in that: the fixture body is cylindrical and one side is provided with a limit notch passing through the cylinder; There are multiple bayonets on one end. A plurality of bayonet sockets on one end of the clamp body are respectively engaged with a plurality of reinforcing ribs on the engine in one-to-one correspondence, and the plurality of reinforcing ribs are located around the installation hole of the knock sensor on the engine. The invention can fix the orientation of the wiring harness connector of the knock sensor, facilitates wiring harness insertion, and ensures assembly quality; can simplify the installation operation of the knock sensor, install it in place at one time, shorten assembly time, and reduce assembly cost.

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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