CN217211304U - Air outlet structure of car air outlet amount of wind leak test bench wind - Google Patents
Air outlet structure of car air outlet amount of wind leak test bench wind Download PDFInfo
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- CN217211304U CN217211304U CN202123200036.9U CN202123200036U CN217211304U CN 217211304 U CN217211304 U CN 217211304U CN 202123200036 U CN202123200036 U CN 202123200036U CN 217211304 U CN217211304 U CN 217211304U
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Abstract
The utility model relates to a pipeline leakproofness detection area especially relates to an air outlet structure of car air outlet amount of wind leak test bench wind, and it includes the plenum, air intake and air outlet have been seted up respectively to the corresponding both sides of plenum, install on the air outlet with air outlet size assorted transition pipeline, the one end that the plenum was kept away from to the transition pipeline is connected with the work piece, the cross-section that the transition pipeline is close to plenum one end is greater than the cross-section of being connected one end with the work piece. This application has the effect that reduces the air current and kick-backs.
Description
Technical Field
The application relates to the technical field of pipeline sealing detection, in particular to an air outlet structure of a car air outlet air quantity leakage test bench wind.
Background
Along with the development of the society, the quantity of automobiles is more and more, various pipelines installed on the automobiles need to be installed on an air outlet air quantity leakage test bench before the automobiles are produced, and the tightness of the pipelines is detected through the air outlet air quantity leakage test bench.
In the existing detection method, a cavity to be measured is arranged at an air outlet of an air chamber, an aluminum foil is used for wrapping and sealing an air inlet of a workpiece and a joint of the workpiece and the air outlet of the air chamber of the device, so that the air outlet and the joint cannot leak in the test process, an air outlet pipe of a fan leads to the air inlet of the air chamber, and finally the tightness of the workpiece is calculated by detecting the pressure in the air chamber.
In view of the above-mentioned related technologies, the inventor believes that, when the tightness of a workpiece is detected, gas impacts the inner wall of the air chamber where the air outlet is formed, so that the gas flow rebounds, and the kinetic energy is increased.
SUMMERY OF THE UTILITY MODEL
In order to reduce the air current and kick-back, this application provides an air outlet structure of car air outlet amount of wind leak test bench wind.
The application provides a pair of air outlet structure of car air outlet amount of wind leak test bench wind adopts following technical scheme:
the air outlet structure of the test bench air for the air quantity leakage test of the automobile air outlet comprises an air chamber, wherein an air inlet and an air outlet are respectively formed in two corresponding sides of the air chamber, a transition pipeline matched with the air outlet in size is installed on the air outlet, one end, far away from the air chamber, of the transition pipeline is connected with a workpiece, and the cross section, close to one end of the air chamber, of the transition pipeline is larger than the cross section of one end, connected with the workpiece, of the transition pipeline.
By adopting the technical scheme, because the section of the transition pipeline arranged on the air chamber is larger than the section of the end connected with the workpiece, when the workpiece is detected, part of air in the air chamber impacts the side wall of the air chamber provided with the air outlet, and the other part of air enters the workpiece from the transition pipeline, the contact area between the air and the side wall of the air chamber can be reduced, and the rebound of the air can be reduced.
Optionally, a flange is fixedly mounted at one end of the transition duct close to the air chamber.
By adopting the technical scheme, when the transition pipeline is installed, the flange on the transition pipeline can be abutted against the side face of the air chamber, and the contact surface between the transition pipeline and the side face of the air chamber is increased, so that the sealing property between the transition pipeline and the air chamber can be increased.
Optionally, a positioning column is fixedly mounted on one side of the air chamber close to the transition pipeline, and a positioning hole for clamping the positioning column is formed in the flange.
By adopting the technical scheme, when the transition pipeline is installed, the positioning column fixed on the side wall of the air chamber is clamped in the positioning hole on the flange, so that the transition pipeline can be positioned, and the transition pipeline is convenient to fix.
Optionally, a fixing piece for fixing the transition duct is fixedly mounted on one side of the air chamber close to the transition duct.
Through adopting above-mentioned technical scheme, under the effect of filtering piece, can fix the transition pipeline that inserts in the locating hole, realize simple to operate's purpose, when the transition pipeline when needs are changed, rotate the mounting, take off the transition pipeline and can change the transition pipeline, realize dismantling convenient purpose.
Optionally, a sealing gasket is arranged between the flange and the sidewall of the air chamber.
By adopting the technical scheme, after the transition pipeline is fixed by the fixing piece, the sealing gasket arranged between the transition pipeline and the air chamber is compressed, so that the sealing property between the transition pipeline and the air chamber can be improved, and the detection accuracy is improved.
Optionally, a handle is fixedly mounted on the transition pipeline.
Through adopting above-mentioned technical scheme, under the effect of handle, during the installation transition pipeline, the handheld handle of staff, then more convenient inserts the reference column in the locating hole on the transition pipeline.
Optionally, a chamfer is arranged at one end of the positioning column, which is far away from the air chamber.
Through adopting above-mentioned technical scheme, under the effect of chamfer, can make things convenient for the reference column to insert in the constant head tank, improve the installation effectiveness.
Optionally, a connecting pipe is fixedly mounted at one end of the transition pipeline far away from the air outlet.
By adopting the technical scheme, the workpiece to be detected can be conveniently installed under the action of the connecting pipe, and the detection efficiency is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arrangement of the transition pipeline, because the section of the transition pipeline arranged on the air chamber is larger than the section of the end connected with the workpiece, when the workpiece is detected, part of air in the air chamber impacts the side wall provided with the air outlet of the air chamber, and the other part of air enters the workpiece from the transition pipeline, the contact area between the air and the side wall of the air chamber can be reduced, so that the resilience of the air can be reduced;
2. through the arrangement of the flanges, when the transition pipeline is installed, the flanges on the transition pipeline can be abutted against the side faces of the air chamber, and the contact surface between the transition pipeline and the side faces of the air chamber is increased, so that the sealing property between the transition pipeline and the air chamber can be increased;
3. through the arrangement of the positioning holes and the positioning columns, when the transition pipeline is installed, the positioning columns fixed on the side wall of the air chamber are clamped in the positioning holes in the flanges, so that the transition pipeline can be positioned, and the transition pipeline is convenient to fix.
Drawings
Fig. 1 is a related art schematic diagram.
Fig. 2 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 3 is an enlarged view at a in fig. 2.
Reference numerals: 1. an air chamber; 11. an air inlet; 12. an air outlet; 2. a transition duct; 21. a connecting pipe; 22. a flange; 3. a gasket; 4. a fixing member; 41. a fixed seat; 42. a hand-held portion; 43. a pressing part; 5. a handle; 6. a positioning column; 61. and (7) positioning the holes.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
Referring to fig. 1, related art: an air outlet structure of an automobile air outlet air quantity leakage test bench air comprises an air chamber 1, an air inlet 11 is formed in one side of the air chamber 1, a detection test bench is connected to the air inlet 11, an air outlet 12 is formed in one side of the air chamber 1 opposite to the air inlet 11, a workpiece to be detected is placed at the air outlet 12, the joint of the workpiece and the air outlet 12 of the workpiece are wrapped by tinfoil, the detection test bench blows air into the air chamber 1 through the air inlet 11, the air in the air chamber 1 flows to the workpiece to be detected through the air outlet 12, and the sealing performance of the workpiece is calculated through detecting the pressure in the air chamber 1.
The embodiment of the application discloses an air outlet structure of a test bench for air quantity leakage test of an automobile air outlet, which is used for reducing the impact of air on the side wall of an air outlet 12 formed in an air chamber 1.
Refer to fig. 2, transition pipeline 2 is installed to air outlet 12, the size and the air outlet 12 phase-match of one end are connected with air outlet 12 to transition pipeline 2, the one end fixed mounting who keeps away from air outlet 12 of transition pipeline 2 has connecting pipe 21, in this embodiment, adopt bonded mode fixed connection pipe 21, the one end that transition pipeline 2 was kept away from to connecting pipe 21 is connected with the work piece, it is sealed that the work piece is wrapped up the work piece through the aluminium foil to the back work piece of connecting, setting through connecting pipe 21, can the workpiece that awaits measuring of easy to assemble.
Specifically, the section of the end, connected with the air chamber 1, of the transition pipeline 2 is larger than that of the end, connected with the workpiece, of the transition pipeline 2, and gas from the air inlet 11 of the air chamber 1 firstly enters the transition pipeline 2 from the air outlet 12 and then enters the workpiece from the transition pipeline 2, so that the tightness of the workpiece is detected; because the air inlet 11 arranged on the air chamber 1 is larger than the section of the transition pipeline 2 connected with the workpiece, the contact area between the air and the side wall of the air outlet 12 can be reduced, so that the increase of kinetic energy caused by the rebound of the air can be reduced, and the air flow transition between the air chamber 1 and the sample piece is more regular and directional through the arrangement of the transition pipeline 2.
Referring to fig. 2 and 3, a flange 22 is fixedly installed at one end of the transition duct 2 close to the plenum 1, in the embodiment, the flange 22 is fixed in an integrally formed manner, and the contact area between the transition duct 2 and the side surface of the plenum 1 can be increased by the arrangement of the flange 22, so that the sealing performance of the transition duct 2 is improved. A sealing gasket 3 is arranged between the flange 22 and the side surface of the air chamber 1, one side of the sealing gasket 3 is abutted against the flange 22, and the side far away from the flange 22 is abutted against the side wall of the air chamber 1, so that the sealing performance between the flange 22 and the air chamber 1 can be improved and the accuracy of detection data can be improved through the arrangement of the sealing gasket 3.
Referring to fig. 2 and 3, a fixing member 4 is fixedly installed on one side of the air chamber 1 close to the transition duct 2, in the present embodiment, the fixing member 4 is fixed in a bolt connection manner, the fixing member 4 includes a fixing seat 41, a handheld portion 42 and a pressing portion 43, the fixing seat 41 is fixedly installed on the side of the air chamber 1 through bolts, the handheld portion 42 is rotatably connected to the fixing seat 41, one end of the pressing portion 43 abuts against one side of the flange 22 close to the transition duct 2, the other side of the pressing portion is connected to the handheld portion 42, the pressing portion 43 can press the flange 22 by rotating the handheld portion 42, so that the sealing gasket 3 can be pressed, and the sealing performance between the transition duct 2 and the air chamber 1 is improved.
Referring to fig. 2 and 3, a handle 5 is fixedly installed on the side surface of the transition pipeline 2, in this embodiment, the handle 5 is fixed in an adhesion manner, and the transition pipeline 2 can be conveniently installed by a user through the arrangement of the handle 5; one side fixed mounting that air outlet 12 was seted up to plenum 1 has reference column 6, in this embodiment, adopt the mode fixed positioning column 6 that bonds, all offer the locating hole 61 that is used for installing reference column 6 on sealed pad 3 and the flange 22, when installation transition pipeline 2, can make reference column 6 insert in the locating hole 61, thereby can be easy to assemble transition pipeline 2, the skew appears when preventing to install, the one end that plenum 1 was kept away from to reference column 6 is provided with the chamfer, through the setting of chamfer, when installation transition pipeline 2, can make things convenient for reference column 6 to insert in the locating hole 61.
The embodiment of the application provides an implementation principle of an air outlet structure of an automobile air outlet air quantity leakage test bench wind: because the section of the transition pipeline 2 arranged on the air chamber 1 is larger than that of the end connected with the workpiece, when the workpiece is detected, part of air in the air chamber 1 impacts the side wall of the air chamber 1 provided with the air outlet 12, and the other part of air enters the workpiece from the transition pipeline 2, the contact area between the air and the side wall of the air chamber 1 can be reduced, and the rebound of the air can be reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an air outlet structure of car air outlet amount of wind leak test bench wind, includes plenum (1), air intake (11) and air outlet (12), its characterized in that have been seted up respectively to the corresponding both sides of plenum (1): the transition pipeline (2) matched with the air outlet (12) in size is installed on the air outlet (12), a workpiece is connected to one end, far away from the air chamber (1), of the transition pipeline (2), and the cross section of one end, close to the air chamber (1), of the transition pipeline (2) is larger than the cross section of one end, connected with the workpiece, of the transition pipeline.
2. The air outlet structure of the test bench for the air quantity leakage test of the air outlet of the automobile according to claim 1, which is characterized in that: and a flange (22) is fixedly arranged at one end of the transition pipeline (2) close to the air chamber (1).
3. The air outlet structure of the test bench for the air quantity leakage test of the air outlet of the automobile according to claim 2, characterized in that: one side of the air chamber (1) close to the transition pipeline (2) is fixedly provided with a positioning column (6), and a positioning hole (61) used for clamping the positioning column (6) is formed in the flange (22).
4. The air outlet structure of the test bench for the air quantity leakage test of the air outlet of the automobile according to claim 1, which is characterized in that: and a fixing piece (4) for fixing the transition pipeline (2) is fixedly arranged on one side of the wind chamber (1) close to the transition pipeline (2).
5. The air outlet structure of the test bench for the air quantity leakage test of the air outlet of the automobile according to claim 2, characterized in that: and a sealing gasket (3) is arranged between the flange (22) and the side wall of the air chamber (1).
6. The air outlet structure of the test bench for the air quantity leakage test of the air outlet of the automobile according to claim 1, which is characterized in that: and a handle (5) is fixedly arranged on the transition pipeline (2).
7. The air outlet structure of the test bench for the air quantity leakage test of the air outlet of the automobile according to claim 3, characterized in that: and a chamfer is arranged at one end of the positioning column (6) far away from the air chamber (1).
8. The air outlet structure of the test bench for the air quantity leakage test of the air outlet of the automobile according to claim 1, which is characterized in that: and a connecting pipe (21) is fixedly mounted at one end of the transition pipeline (2) far away from the air outlet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123200036.9U CN217211304U (en) | 2021-12-18 | 2021-12-18 | Air outlet structure of car air outlet amount of wind leak test bench wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123200036.9U CN217211304U (en) | 2021-12-18 | 2021-12-18 | Air outlet structure of car air outlet amount of wind leak test bench wind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217211304U true CN217211304U (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123200036.9U Active CN217211304U (en) | 2021-12-18 | 2021-12-18 | Air outlet structure of car air outlet amount of wind leak test bench wind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217211304U (en) |
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2021
- 2021-12-18 CN CN202123200036.9U patent/CN217211304U/en active Active
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