CN206399586U - A kind of CNG pressure sensors test fixture - Google Patents

Abstract

The utility model discloses a kind of test fixture for CNG pressure sensors, bottom plate is fixed including frock, four mounting posts are fixed on frock fixation bottom plate by installing screw, product limited block and product fixation plate are fixedly mounted in four mounting posts by installing screw again, guide pillar is fixedly mounted on product fixed installation plate by installing screw, frock is fixed back plate and is arranged on by fixed screw on frock fixed installation bottom plate, rectilinear quick-speed jigs are arranged on frock by quick clip keel and fixed in back plate, two tracheae quick connectors are installed on joint block of gas channel, joint block of gas channel connection is arranged on rectilinear quick-speed jigs, sealing mounting blocks are fixedly mounted on joint block of gas channel by installing screw.The utility model is fixedly mounted plate and can test the CNG pressure sensors of different model by changing product limiting plate and product, is a kind of test fixture of the CNG pressure sensors of simple to operate, convenient test and highly versatile.

Description

A CNG pressure sensor test tool

technical field

The utility model relates to a test tool, in particular to a test tool for a CNG pressure sensor.

Background technique

The CNG pressure sensor is mainly used in the multi-point injection system of dual-fuel vehicles to detect the absolute pressure of the gas injection rail and the absolute pressure in the intake manifold. According to the change of the two air pressures, it is converted into an electrical signal and transmitted to the ECU, and the ECU then controls the best injection gas time according to the actual air-fuel ratio. To achieve the purpose of energy saving and emission reduction.

At present, the commonly used method for detecting the CNG pressure sensor is to insert the hoses into the two intake pipes corresponding to the CNG pressure sensor for detection. When testing, connect the hose to the two intake hoses corresponding to the CNG pressure sensor, connect the other end of the hose to the pressure controller, and output the test pressure of the product from the pressure controller. Since it is a hose, the test pressure When the hose is easy to seal, the output pressure is unstable and the test result is inaccurate, and the hose is easy to be popped out by the pressure, which is prone to danger.

Utility model content

The technical problem solved by the utility model is to provide a CNG pressure sensor testing tool with simple structure and convenient operation, so as to improve the working efficiency of testing the CNG pressure sensor and reduce the testing cost.

In order to solve the problems of the technologies described above, the technical solutions adopted by the utility model are as follows.

A test tool for CNG pressure sensor, including tool fixed bottom plate, tool fixed rear plate, installation column, limit block, product fixed plate, guide column, vertical quick clamp, quick clamp pad high block, gas circuit connection block and trachea push-in connector;

The installation column is installed on the fixed bottom plate of the tooling; the product limit block and the product fixing plate are fixed on the installation column; the guide column is fixed on the product fixed installation plate; the tooling fixes the rear plate Installed on the fixed installation base plate of the tooling; the vertical quick clamp is installed on the fixed back plate of the tooling through the high block of the quick clamp pad; The connection block is connected and installed on the vertical quick clamp; the sealing installation block is fixed on the gas path connection block.

Further, the mounting column is fixed to the fixing bottom plate of the tooling by means of mounting screws.

Further, the product limiting block and the product fixing plate are fixed on the mounting column by mounting screws.

Further, the guide post is fixed on the product fixing mounting plate by mounting screws.

Further, the tooling fixing rear plate is mounted on the tooling fixing bottom plate through fixing screws.

Further, the sealing installation block is fixed on the gas path connection block by installation screws.

Further, there are four installation columns.

Further, there are two trachea quick-plug connectors.

Beneficial effects: the utility model can test different types of CNG pressure sensors by replacing the product limit plate and the product fixed installation plate, and is a test tool for CNG pressure sensors with simple and convenient operation, convenient testing and strong versatility.

Description of drawings

In order to make the content of the utility model easier to understand clearly, the utility model will be described in further detail below in conjunction with the accompanying drawings, wherein,

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the CNG pressure sensor to be detected in the present invention.

In the figure, it is shown as: 1-vertical quick clamp; 2-guide column; 3-air connection block; 4-sealing installation block; 5-installation screw; 6-installation column; Elevator block; 9-fixing screw; 10-trachea quick-plug connector; 11-tooling fixed back plate; 12-CNG pressure sensor to be tested; 13-product limit plate; 14-product fixed installation plate.

detailed description

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the CNG pressure sensor test tooling includes the tooling fixed base plate 7, and the four mounting columns 6 are fixed on the tooling fixed base plate 7 through the mounting screws 5, and then the product limit block 13 and the product fixing plate 14 are fixed through the mounting screws. 5 is fixedly installed on the four installation columns 6, the guide column 2 is fixedly installed on the product fixed installation plate 14 through the installation screws 5, the tooling fixed rear plate 11 is installed on the tooling fixed installation base plate 7 through the fixing screws 9, vertical quick clamp 1. Install the fast clamp pad high block 8 on the fixed back plate 11 of the tooling, install two air pipe quick-plug connectors 10 on the air circuit connection block 3, connect and install the air circuit connection block 3 on the vertical quick clamp 1, and seal the installation block 4 is fixedly installed on the gas path connecting block 3 by means of mounting screws 5 .

As shown in Figure 2, replace the corresponding CNG pressure sensor 12 to be detected, connect the pressure controller outlet air pipe to the air pipe quick plug 10, push the vertical quick clamp 1 to drive the air circuit connection block 3 and the sealing installation block 4 along the guide The column 2 goes down, thereby sealing the two air pipes of the CNG pressure sensor 12 to be tested, plugging in the connector corresponding to the CNG pressure sensor 12 to be tested, and the pressure controller outputs the corresponding test pressure to test the performance of the CNG pressure sensor 12 to be tested. The utility model is a test tool for a CNG pressure sensor with simple and convenient installation and operation, good consistency and strong versatility.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the protection scope of the present utility model.

Claims (8)

1. A test tooling for CNG pressure sensors, characterized in that it comprises a tooling fixed base plate, a tooling fixed back plate, a mounting column, a limit block, a product fixing plate, a guide column, a vertical quick clamp, and a quick clamp pad height block, air connection block and trachea push-in connector; The installation column is installed on the fixed bottom plate of the tooling; the product limit block and the product fixing plate are fixed on the installation column; the guide column is fixed on the product fixing plate; the tooling is fixed on the back plate and installed on the fixed bottom plate of the tooling; the vertical quick clamp is installed on the fixed back plate of the tooling through the high block of the quick clamp pad; The connection is installed on the vertical fast clamp; the sealing installation block is fixed on the gas path connection block. 2 . A test tool for a CNG pressure sensor according to claim 1 , wherein the mounting column is fixed to the fixing base plate of the tool by mounting screws. 3 . 3 . A test tool for a CNG pressure sensor according to claim 1 , wherein the product limiting block and the product fixing plate are fixed on the mounting column by mounting screws. 4 . 4 . A test tool for a CNG pressure sensor according to claim 1 , wherein the guide post is fixed on the product fixed mounting plate by mounting screws. 5 . 5 . A test tool for a CNG pressure sensor according to claim 1 , characterized in that, the tool fixed back plate is mounted on the tool fixed installation base plate by fixing screws. 6 . 6 . A test tool for a CNG pressure sensor according to claim 1 , wherein the sealing mounting block is fixed on the gas path connection block by mounting screws. 7 . 7. A test fixture for a CNG pressure sensor according to claim 1, wherein there are four mounting columns. 8. A test tool for a CNG pressure sensor according to claim 1, characterized in that there are two trachea quick-plug connectors.