Auxiliary device for testing air tightness of automobile

Abstract

The automobile air tightness test auxiliary device provided by the utility model is connected with automobile air tightness test equipment, the automobile air tightness test auxiliary device comprises a pressure release valve connecting structure arranged on an automobile pressure release valve and a connecting pipe assembly connected with the pressure release valve connecting structure, and the pressure release valve connecting structure is arranged on the automobile pressure release valve. According to the automobile air tightness testing device, the automobile pressure release valve is connected with the ventilation pipe opening, preparation work before automobile air tightness testing is reduced, automobile air tightness testing can be conveniently and rapidly carried out, testing time and testing cost are saved, and the accuracy of testing results is effectively improved; the automobile air tightness test auxiliary device provided by the utility model is convenient and rapid to carry out automobile air tightness test, saves test time and cost, and effectively improves the accuracy of test results.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of automobile air tightness test, concretely, the utility model relates to an automobile air tightness test auxiliary device. BACKGROUND

[0002] After automobile whole vehicle is offline, whole vehicle air tightness test is carried out, the vehicle of lower leakage in air tightness test, the sound in the vehicle will be lower, the comfort of driver and passenger when driving will be better, since automobile air tightness test needs to do a lot of preparation work before testing, air tightness test usually carries out sampling inspection to offline vehicle, but with the increasing requirement of automobile NVH, the test demand of whole vehicle air tightness test is increasing, the air tightness test equipment needs to be connected with automobile air duct in prior art, needs to be connected through automobile window, after the window is lowered, the opening part of the window needs to be sealed through a large amount of adhesive tape and sealing material, the test result accuracy is poor, and time and effort are consumed.

[0003] To solve the above problems, the patent document with the application number CN2008100672041 discloses an air flow generating device for testing the influence of automobile part product sealing performance on the noise in the vehicle, which comprises a first-stage flow rate adjusting mechanism and a main pipeline connected with each other; the first-stage flow rate adjusting mechanism has a first input interface connected with an air source and an output interface connected with the main pipeline; the main pipeline has a second input interface connected with the first-stage flow rate adjusting mechanism and a second-stage flow rate adjusting mechanism with air flow injection holes, and a flow rate detecting device is arranged in the main pipeline, but the above problems cannot be solved. SUMMARY

[0004] The utility model is in order to solve above-mentioned problem and carries out, the purpose is in providing a kind of automobile air tightness test, which is convenient and fast, can save test time and cost, can effectively improve the accuracy of test result automobile air tightness test auxiliary device, to achieve the above purpose, the technical scheme that the utility model adopts is as follows:

[0005] The utility model provides a kind of automobile air tightness test auxiliary device, is connected with automobile air tightness test equipment, has such characteristics, including the pressure relief valve connecting structure being arranged on automobile pressure relief valve and the connecting pipe assembly being connected with pressure relief valve connecting structure.

[0006] In the automobile air tightness test auxiliary device provided by the utility model, the pressure relief valve connecting structure can also have the following characteristics: the pressure relief valve connecting structure includes a connecting plate and a straining assembly, the connecting plate is provided with a connecting hole, and the straining assembly is arranged on one side of the connecting plate.

[0007] In the automobile air tightness test auxiliary device provided by the utility model, the connecting plate can also have the following characteristics: the connecting plate is provided with a valve piece straining flange, and the valve piece straining flanges are uniformly arranged on the connecting plate.

[0008] In the automobile air tightness test auxiliary device provided by the utility model, the supporting assembly comprises a sleeve and a movable rod, the sleeve is arranged on the connecting plate, one end of the movable rod is movably arranged in the sleeve, and the other end of the movable rod is provided with a supporting protrusion.

[0009] In the automobile air tightness test auxiliary device provided by the utility model, the sleeve is provided with an internal thread, one end of the movable rod close to the sleeve is provided with an external thread, and the movable rod is movably connected with the sleeve through thread cooperation.

[0010] In the automobile air tightness test auxiliary device provided by the utility model, the side of the connecting plate close to the automobile pressure relief valve is provided with a sealing ring mounting flange.

[0011] In the automobile air tightness test auxiliary device provided by the utility model, the connecting pipe assembly comprises a connecting pipe and a connecting head, one end of the connecting pipe is arranged in the connecting hole, the connecting head is arranged at the other end of the connecting pipe, and the connecting head is connected with the automobile air tightness test equipment.

[0012] In the automobile air tightness test auxiliary device provided by the utility model, the valve piece supporting flange is trapezoidal.

[0013] The automobile air tightness test auxiliary device provided by the utility model is connected with the automobile air tightness test equipment, the automobile air tightness test auxiliary device comprises a pressure relief valve connecting structure arranged on the automobile pressure relief valve and a connecting pipe assembly connected with the pressure relief valve connecting structure, the pressure relief valve connecting structure is arranged on the automobile pressure relief valve, and the connecting pipe assembly is used for connecting the automobile air tightness test equipment and the automobile pressure relief valve.

[0014] Therefore, the automobile air tightness test auxiliary device provided by the utility model is convenient and fast for automobile air tightness test, saves test time and cost, and effectively improves test result accuracy. 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 view of the automobile air tightness test auxiliary device in the embodiment of the utility model;

[0017] Figure 2 is a structural schematic view of the pressure relief valve connecting structure in the embodiment of the utility model.

[0018] The figure is marked as: pressure relief valve connecting structure-10, connecting plate-11, connecting hole-111, tensioning assembly-12, sleeve-121, movable rod-122, tensioning protrusion-123, valve piece strutting flange-13, sealing ring mounting flange-14, connecting pipe assembly-20, connecting pipe-21, connecting head-22. DETAILED DESCRIPTION

[0019] The specific embodiments of the present application are further described below with reference to the drawings, and the description of the embodiments is made by comparing with the drawings, the purpose is to help the technical personnel 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 It is the structure schematic view of the automobile air tightness test auxiliary device in the embodiment of the utility model; Figure 2 It is the structure schematic view of the pressure relief valve connecting structure in the embodiment of the utility model.

[0021] As Figure 1 and Figure 2 The automobile air tightness test auxiliary device provided by the utility model is connected with the automobile air tightness test equipment, and the automobile air tightness test auxiliary device comprises a pressure relief valve connecting structure 10 arranged on the automobile pressure relief valve and a connecting pipe assembly 20 connected with the pressure relief valve connecting structure 10, the pressure relief valve connecting structure 10 is arranged on the automobile pressure relief valve, and the connecting pipe assembly 20 is used for connecting the automobile air tightness test equipment and the automobile pressure relief valve, the utility model connects the ventilation pipe opening through the automobile pressure relief valve, reduces the preparation work before the automobile air tightness test, facilitates the automobile air tightness test, saves the test time and cost, and effectively improves the accuracy of the test result.

[0022] As Figure 2 The pressure relief valve connecting structure 10 comprises a connecting plate 11 and a tensioning assembly 12, the tensioning assembly 12 is arranged on one side of the connecting plate 11, the connecting plate 11 is matched with the valve cover of the automobile pressure relief valve, one side of the tensioning assembly 12 is connected with the connecting plate 11, and the other side of the tensioning assembly 12 is abutted with the automobile sheet metal part, so that the connecting plate 11 is pressed on the valve cover, the pressure relief valve connecting structure 10 is prevented from loosening or shaking in the test process, and the accuracy of the air tightness test is avoided from being affected. The connecting plate 11 is provided with a connecting hole 111, the connecting hole 111 is used for the connecting pipe assembly 20 to pass through, the automobile air tightness test equipment and the automobile pressure relief valve are conveniently connected through the connecting pipe assembly 20, installation or dismounting is facilitated, and the test time required is further saved.

[0023] As Figure 2As shown, the connecting plate 11 is provided with valve plate opening flanges 13, which are evenly arranged on the connecting plate 11 and located around the connecting hole 111. The valve plate opening flanges 13 are trapezoidal, which are used to open the valve plate of the automobile pressure relief valve, so that the connecting pipe assembly 20 can be inserted into the automobile pressure relief valve, and then the automobile air tightness test equipment is connected with the ventilation pipe opening.

[0024] As shown, Figure 2 The tightening assembly 12 includes a sleeve 121 and a movable rod 122. One end of the sleeve 121 is arranged vertically on the connecting plate 11, and one end of the movable rod 122 is movably arranged in the sleeve 121. The other end of the movable rod 122 is provided with a tightening protrusion 123, which can increase the contact area between the movable rod 122 and the automobile sheet metal part, so as to stably support the connecting plate 11, prevent the pressure relief valve connecting structure 10 from loosening or shaking during the test, and avoid affecting the accuracy of the air tightness test. In this embodiment, four sets of tightening assemblies 12 are evenly arranged on the connecting plate 11 and located at the four leg parts of the connecting plate 11, which further improves the tightening effect of the connecting plate 11, further prevents the pressure relief valve connecting structure 10 from loosening or shaking during the test, and further avoids affecting the accuracy of the air tightness test.

[0025] The sleeve 121 is provided with an internal thread, and the end of the movable rod 122 close to the sleeve 121 is provided with an external thread. The movable rod 121 is rotatably connected with the sleeve 121 through the thread cooperation. By rotating the movable rod 11, the length of the tightening assembly 12 can be adjusted, so as to better adapt to different vehicle models, effectively ensure that the tightening assembly 12 can be flexibly adjusted according to different vehicle models, and ensure that the tightening assembly 12 can tighten the connecting plate 11 in the air tightness test of different vehicle models.

[0026] The side of the connecting plate 11 close to the automobile pressure relief valve is provided with a sealing ring mounting flange 14, which is evenly arranged on the edge of the connecting plate 11 and used to mount the sealing ring, so as to ensure the sealing between the connecting plate 11 and the pressure relief valve and improve the accuracy of the test results of the automobile air tightness test.

[0027] The connecting pipe assembly 20 includes a connecting pipe 21 and a connecting head 22. One end of the connecting pipe 21 is arranged in the connecting hole 111 and extends into the automobile pressure relief valve. The connecting head 22 is arranged at the other end of the connecting pipe 21 and connected with the automobile air tightness test equipment, so as to connect the automobile air tightness test equipment and the ventilation pipe opening. The automobile air tightness test can be conveniently completed through the automobile air tightness test equipment, which can effectively shorten the time required for the air tightness test, improve the test efficiency, and effectively reduce the labor intensity of the operator. The sealing ring is also arranged between the connecting pipe 21 and the connecting hole 111, which can ensure the sealing between the connecting pipe 21 and the connecting plate 11 and improve the accuracy of the test results of the automobile air tightness test.

[0028] Effects of embodiments

[0029] The automobile air tightness test auxiliary device provided by the utility model is connected with automobile air tightness test equipment, the automobile air tightness test auxiliary device includes the pressure relief valve connecting structure 10 arranged on the automobile pressure relief valve and the connecting pipe assembly 20 connected with the pressure relief valve connecting structure 10, the pressure relief valve connecting structure 10 is arranged on the automobile pressure relief valve, and the connecting pipe assembly 20 is used for connecting the automobile air tightness test equipment and the automobile pressure relief valve, the utility model connects the ventilation pipe orifice through the automobile pressure relief valve, reduces the preparation work before automobile air tightness test, facilitates quick automobile air tightness test, saves test time and cost, effectively improves test result accuracy, the automobile air tightness test auxiliary device provided by the utility model facilitates quick automobile air tightness test, saves test time and cost, effectively improves test result accuracy.

[0030] The utility model has been described exemplarily in combination with the drawings. Obviously, the specific implementation of the utility model is not limited by 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, they are all within the protection scope of the utility model.

Claims

1. An automobile air tightness test auxiliary device connected with an automobile air tightness test equipment, characterized in that, The application relates to a pressure relief valve connecting structure (10) arranged on a pressure relief valve of an automobile and a connecting pipe assembly (20) connected with the pressure relief valve connecting structure (10), wherein the pressure relief valve connecting structure (10) comprises a connecting plate (11) and a tensioning assembly (12), the connecting plate (11) is provided with a connecting hole (111), the tensioning assembly (12) is arranged on one side of the connecting plate (11), the connecting pipe assembly (20) comprises a connecting pipe (21) and a connecting head (22), one end of the connecting pipe (21) is arranged in the connecting hole (111), the connecting head (22) is arranged on the other end of the connecting pipe (21), and the connecting head (22) is connected with an automobile air tightness testing equipment.

2. The automotive air tightness test assist device according to claim 1, characterized by, The connecting plate (11) is provided with valve piece opening flanges (13) which are uniformly arranged on the connecting plate (11).

3. The automobile air tightness test auxiliary device according to claim 2, characterized in that: The tensioning assembly (12) comprises a sleeve (121) and a movable rod (122), the sleeve (121) is arranged on the connecting plate (11), one end of the movable rod (122) is movably arranged in the sleeve (121), and the other end of the movable rod (122) is provided with a tensioning protrusion (123).

4. The automotive leak test assist device of claim 3, wherein, The sleeve (121) is provided with an internal thread, one end of the movable rod (122) close to the sleeve (121) is provided with an external thread, and the movable rod (122) is movably connected with the sleeve (121) through thread cooperation.

5. The automotive leak test assist device of claim 4, wherein, The connecting plate (11) is provided with a sealing ring mounting flange (14) close to one side of the automobile pressure relief valve.

6. The automotive leak test assist device of claim 5, wherein, The valve piece opening flanges (13) are trapezoidal.

Images