Device for testing internal pressure of automobile expansion tank

Abstract

The internal pressure testing device for the automobile expansion box comprises the testing assembly connected with the expansion box, the expansion box is provided with the filling hard pipe, and the testing assembly is connected with the filling hard pipe, so that the situation that the automobile expansion box needs to be punched for testing is avoided, the testing assembly is convenient to mount or dismount, the testing time can be saved, repeated utilization can be achieved, and the testing efficiency is improved. The internal pressure testing device for the automobile expansion tank can be quickly assembled or disassembled, is favorable for saving the testing time, is favorable for reducing the testing cost and is high in testing result accuracy, and the testing assembly can be repeatedly utilized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of automobile parts, specifically, the utility model relates to an automobile expansion tank internal pressure testing device. BACKGROUND

[0002] The automobile expansion tank, also known as an expansion tank or a coolant expansion tank, is an important component in the automobile cooling system, and its main function is to accommodate excess coolant. When the engine is working, the coolant will expand due to the increase in temperature, and the expansion tank can accommodate these excess coolants to prevent the cooling system pressure from being too high. The expansion tank is connected to other parts of the cooling system to ensure that the coolant can flow freely between the engine and the radiator. The expansion tank plays a role in bearing system pressure and replenishing liquid. For expansion tanks with a pressure relief valve device, the pressure cover integrates the pressure relief function. When the pressure exceeds the critical value, the pressure relief valve will open to relieve pressure. In order to verify the pressure retention and pressure relief opening value of the expansion tank, the internal pressure of the expansion tank needs to be tested. In the prior art, a hole is punched in the expansion tank, a pressure sensor is installed at the punched hole, and the gap between the sensor and the tank is sealed with glue. The sensor installation process is complex, increasing the test time. This is a destructive test that increases the test cost. The gap between the sensor and the tank is not easy to seal tightly, and when the internal pressure of the expansion tank rises, leakage is likely to occur, resulting in inaccurate test data.

[0003] To solve the above problems, patent document 218330455U discloses an automobile expansion tank cover detection device, which includes a rack, a rubber pressure head driven and controlled by a gas cylinder, and a pressure increasing mechanism. It also includes a clamping mechanism, which includes a fixed seat installed on the rack workbench. The fixed seat is circular in cross-section. Before detecting the automobile expansion tank cover, the expansion tank cover is placed on the top of the fixed seat, then the threaded sleeve is rotated to move the extrusion sleeve upward to push the multiple radial plates in annular array to move radially, thereby achieving automatic center positioning of the expansion tank cover. Finally, the rubber pressure head is controlled to move downward to achieve sealing communication between the tank cover and the air hole, but it cannot solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model is to solve the above problems, and aims to provide an automobile expansion tank internal pressure testing device that can be quickly installed or disassembled, can save test time, can be reused, and has high accuracy of test results. In order to achieve the above purpose, the utility model adopts the technical scheme of:

[0005] The utility model provides an automobile expansion tank internal pressure testing device, which has the following characteristics: a test assembly is connected to the expansion tank, and a filling hard pipe is arranged on the expansion tank, and the test assembly is connected to the filling hard pipe.

[0006] The automobile expansion tank internal pressure testing device has the characteristics that the testing assembly comprises a mounting pipe and a pressure testing sensor, and the pressure testing sensor is arranged on the mounting pipe.

[0007] The automobile expansion tank internal pressure testing device has the characteristics that a branch pipe is arranged on the mounting pipe, and the pressure testing sensor is arranged in the branch pipe.

[0008] The automobile expansion tank internal pressure testing device has the characteristics that a connecting hose is arranged on the mounting pipe and close to one end of the filling hard pipe, one end of the connecting hose is connected with the filling hard pipe, and the other end of the connecting hose is connected with the mounting pipe.

[0009] The automobile expansion tank internal pressure testing device has the characteristics that a clamp is arranged on the connecting hose.

[0010] The automobile expansion tank internal pressure testing device has the characteristics that a filling hose is connected with the other end of the mounting pipe which is away from the connecting hose.

[0011] The automobile expansion tank internal pressure testing device has the characteristics that a gas removal port is further arranged on the expansion tank.

[0012] The automobile expansion tank internal pressure testing device has the characteristics that an expansion tank outlet and a tank cover are further arranged on the expansion tank, and the tank cover is arranged on the expansion tank outlet.

[0013] The automobile expansion tank internal pressure testing device has the characteristics that the automobile expansion tank internal pressure testing device comprises a testing assembly connected with the expansion tank, the expansion tank is provided with a filling hard pipe, the testing assembly is connected with the filling hard pipe, and the testing assembly can be conveniently installed or dismounted, the test time can be saved, the testing assembly can be repeatedly used, the test cost is reduced, and the test result accuracy is improved.

[0014] Therefore, the automobile expansion tank internal pressure testing device can be quickly installed or dismounted, the test time can be saved, the testing assembly can be repeatedly used, the test cost is reduced, and the test result accuracy is high. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present specification includes the following drawings, and the shown contents are respectively:

[0016] Figure 1 is a structural schematic of the automobile expansion tank internal pressure testing device in the embodiment of the present utility model Figure One ;

[0017] Figure 2 is the structure schematic of the automobile expansion tank internal pressure testing device in the embodiment of the utility model Figure Two .

[0018] In the figure, marked: 1-expansion tank, 2-filling hard pipe, 3-degassing port, 4-expansion tank outlet, 5-tank cover, 10-testing assembly, 11-mounting pipe, 12-pressure testing sensor, 13-branch pipe, 14-connection hose, 15-clip, 16-filling hose. DETAILED DESCRIPTION

[0019] The specific embodiments of the present application are further described in detail below with reference to the drawings, by describing the embodiments, to help the skilled in the art to have more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present application, and to help its implementation.

[0020] Figure 1 is the structure schematic of the automobile expansion tank internal pressure testing device in the embodiment of the utility model Figure One ; Figure 2 is the structure schematic of the automobile expansion tank internal pressure testing device in the embodiment of the utility model Figure Two .

[0021] As shown in Figure 1 and Figure 2 , the automobile expansion tank internal pressure testing device provided by the utility model comprises a testing assembly 10 connected with an expansion tank 1, the expansion tank 1 is provided with a filling hard pipe 2, the testing assembly 10 is connected with the filling hard pipe 2, which avoids the need to punch the automobile expansion tank 1 for testing, facilitates the installation or dismounting of the testing assembly 10, can save test time, can be reused, reduces test cost, improves the accuracy of test results, the automobile expansion tank internal pressure testing device provided by the utility model can be quickly installed or dismounted, which is conducive to saving test time, the testing assembly 10 can be reused, which is conducive to reducing test cost, and the test result accuracy is high.

[0022] The testing assembly 10 comprises a mounting pipe 11 and a pressure testing sensor 12, the pressure testing sensor 12 is arranged on the mounting pipe 11, the mounting pipe 11 is an aluminum pipe, the mounting pipe 11 is provided with a branch pipe 13, one end of the branch pipe 13 is in vertical communication with the outer peripheral surface of the mounting pipe 11, the pressure testing sensor 12 is arranged in the branch pipe 13, the end portion of the pressure testing sensor 12 is located in the mounting pipe 11, one end of the mounting pipe 11 close to the filling hard pipe 2 is provided with a connection hose 14, one end of the connection hose 14 is connected with the filling hard pipe 2, the other end of the connection hose 14 is connected with the mounting pipe 11, the connection hose 14 is used for connecting the filling hard pipe 2 and the mounting pipe 11, so that the testing assembly 10 is convenient to install or dismount, which is conducive to saving test time.

[0023] The connecting hose 14 is provided with a clamp 15, the clamp 15 is clamped on the connecting hose 14 and is located at both ends of the connecting hose 14, is used for locking the connecting position of the connecting hose 14 and the filling hard pipe 2 and the connecting position of the connecting hose 14 and the mounting pipe 11, is favorable to improve the sealing property and is favorable to improve the test result accuracy. The mounting pipe 11 is connected with a filling hose 16 at the end far away from the connecting hose 14, the filling hose 16 is used for filling the coolant into the expansion tank 1. The connecting position of the filling hose 16 and the mounting pipe 11 is also provided with a clamp 15, is used for improving the sealing property of the connecting position of the filling hose 16 and the mounting pipe 11.

[0024] The expansion tank 1 is also provided with a degassing port 3, the expansion tank 1 is also provided with an expansion tank outlet 4 and a tank cover 5, the tank cover 5 is arranged on the expansion tank outlet 4, in the test process, the degassing port 3 needs to be plugged, the expansion tank outlet 4 is plugged with the tank cover 5, the sealing property of the expansion tank 1 is improved, which is favorable to improve the sealing property.

[0025] The pressure test is carried out through the automobile expansion tank internal pressure test device, the pressure maintaining and pressure relief opening value of the expansion tank 1 are verified, the filling hard pipe 2 and the mounting pipe 11 are connected through the connecting hose 14, the filling hose 16 is connected with the mounting pipe 11, the clamp 15 is arranged, the sealing property is ensured, the degassing port 3 is plugged, the expansion tank outlet 4 is plugged with the tank cover 5, the coolant is filled into the expansion tank 1 through the filling hose 16, and the pressure value in the test process is collected through the pressure test sensor 12.

[0026] Effects of the embodiment

[0027] The automobile expansion tank internal pressure test device provided by the utility model includes a test assembly connected with an expansion tank, the expansion tank is provided with a filling hard pipe, the test assembly is connected with the filling hard pipe, the test assembly can be conveniently installed or dismounted, test time can be saved, the test assembly can be repeatedly used, test cost can be reduced, and test result accuracy is improved.

[0028] The utility model is described exemplarily in combination with the drawings. Apparently, the utility model is not limited to the above-mentioned mode. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model, or the above-mentioned concept and technical scheme of the utility model are directly applied to other occasions without improvement, all fall within the protection scope of the utility model.

Claims

1. A device for testing the internal pressure of an automotive expansion chamber, characterized in that, The test assembly (10) is connected to an expansion chamber (1). The expansion chamber (1) is provided with a filling hard tube (2). The test assembly (10) is connected to the filling hard tube (2). The test assembly (10) includes an installation tube (11) and a pressure test sensor (12). The pressure test sensor (12) is disposed on the installation tube (11). The installation tube (11) is provided with a branch tube (13). The pressure test sensor (12) passes through the branch tube (13). The installation tube (11) is provided with a connecting hose (14) at one end near the filling hard tube (2). One end of the connecting hose (14) is connected to the filling hard tube (2). The other end of the connecting hose (14) is connected to the installation tube (11). The connecting hose (14) is provided with a clamp (15). The clamp (15) is located at both ends of the connecting hose (14).

2. The automotive expansion tank internal pressure testing device according to claim 1, characterized in that, A filling hose (16) is connected to one end of the installation tube (11) away from the connecting hose (14).

3. The automotive expansion tank internal pressure testing device according to claim 2, characterized in that, The expansion chamber (1) is also provided with a degassing port (3).

4. The automotive expansion tank internal pressure testing device according to claim 1, characterized in that, The expansion tank (1) is also provided with an expansion tank outlet (4) and a tank cover (5), with the tank cover (5) located on the expansion tank outlet (4).

Images