Leakage-proof testing device for throttle body

Abstract

The utility model relates to a leak-proof testing device for a throttle body, which comprises a test board, a rear abutting plate is fixedly connected to the test board, and a clamping mechanism is arranged on the front side of the rear abutting plate. A fan is installed on the right side of the test board, a corrugated pipe is fixedly arranged on an air outlet of the fan, a first sealing ring is fixedly arranged at the tail end of the corrugated pipe, and a tightening assembly is arranged on the first sealing ring; a test cylinder capable of moving left and right is arranged on the test bench, a test cavity is formed in the test cylinder, a test assembly is arranged in the test cavity, and a sealing assembly is arranged at the tail end of the test cylinder; and a driving mechanism for driving the testing cylinder to move left and right is mounted on the testing table.

Description

Technical Field

[0001] This utility model relates to throttle valves, and in particular to a throttle valve body leak-proof testing device. Background Technology

[0002] The throttle body is an important component of the car engine's intake system, mainly used to control the airflow into the engine. It is a key component connecting the air filter and the engine's intake manifold. If the throttle body leaks, the engine may not receive the required precise amount of air, which will affect the engine's combustion process and lead to problems such as reduced power and increased fuel consumption.

[0003] Therefore, before the throttle body leaves the factory, the manufacturer needs to sample the throttle bodies from the same batch for leak prevention testing. During the test, it is necessary to ensure that the connection between the throttle body under test and the testing equipment is sealed to ensure the accuracy of the test results. Therefore, how to ensure good sealing at the connection between the throttle body and the testing equipment has become an urgent problem to be solved. Utility Model Content

[0004] This invention proposes a throttle body anti-leakage testing device, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: a throttle body anti-leakage testing device includes a test platform, a rear support plate is fixedly connected to the test platform, and a clamping mechanism is provided on the front side of the rear support plate.

[0006] A fan is installed on the right side of the test bench. A corrugated pipe is fixed to the air outlet of the fan. A No. 1 sealing ring is fixed to the end of the corrugated pipe. A tightening component is provided on the No. 1 sealing ring.

[0007] The test platform is provided with a test cylinder that moves left and right. The test cylinder has a test cavity inside, and a test component is provided inside the test cavity. A sealing component is provided at the end of the test cylinder.

[0008] The test stand is equipped with a drive mechanism for moving the test cylinder left and right.

[0009] A further feature of this invention is that the tightening assembly includes an open iron ring, which is fixedly connected to the first sealing ring.

[0010] The open iron ring has symmetrical iron plates arranged at its opening. One side of the iron plate has a through hole, and a tightening screw is installed in the through hole. The tightening screw is threaded to the iron plate on the other side.

[0011] A further feature of this invention is that the sealing assembly includes a rubber tube, which is fixedly connected to the right end of the test cylinder.

[0012] A second sealing ring is fixedly connected to the outer curved surface of the rubber tube.

[0013] A further feature of this invention is that the driving mechanism includes a first cylinder, and the number of the first cylinders is two, with the two first cylinders symmetrically arranged front and rear on the test bench;

[0014] A connecting plate is fixedly connected to the outer curved surface of the test cylinder, and the piston rod of the first cylinder is fixedly connected to the connecting plate.

[0015] A further feature of this invention is that the testing component includes a pressure detector, which is fixedly connected to the inner curved surface of the testing chamber.

[0016] A negative pressure fan is fixedly connected to the left end of the test cylinder.

[0017] A further feature of this invention is that the test tube is provided with an air pipe communicating with the test chamber, and a sealing cap is threaded onto the air pipe.

[0018] A further feature of this invention is that the clamping mechanism includes a movable clamping plate;

[0019] The test bench is equipped with a second cylinder for driving the movable clamping plate, and the movable clamping plate has a built-in trigger.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] After the technicians put the No. 1 sealing ring on the interface of the sample to be tested, they tightened the fixing screw to tighten the iron ring, thereby fixing the No. 1 sealing ring on the interface of the sample to be tested, so as to prevent air from leaking through the connection between the No. 1 sealing ring and the sample to be tested.

[0022] The rubber tube is inserted into the cavity of the sample to be tested, and the test tube is pressed against the sample under the action of the first cylinder, thus ensuring that air will not leak between the test tube and the sample to ensure the accuracy of the test results. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle;

[0026] Figure 3 This is a cross-sectional view of the present invention;

[0027] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle.

[0028] The following are labeled in the diagram: 11. Test stand; 12. Rear support plate; 13. Fan; 14. Bellows; 15. No. 1 sealing ring; 16. Test cylinder; 17. Open iron ring; 18. Iron sheet; 19. Through hole; 20. Tightening screw; 21. Rubber tube; 22. No. 2 sealing ring; 23. No. 1 cylinder; 24. Connecting plate; 25. Air pressure detector; 27. Negative pressure fan; 28. Test chamber; 29. ​​Air pipe; 30. Sealing cover; 31. Movable clamp; 33. No. 2 cylinder. Detailed Implementation

[0029] The following will refer to the appendix in the embodiments of this utility model. Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Example:

[0031] like Figures 1 to 4 As shown, a throttle body leak-proof testing device includes a test platform 11, a rear abutment plate 12 fixedly connected to the test platform 11, and a movable clamping plate 31 that slides back and forth on the front side of the upper end of the test platform 11. A second cylinder 33 for driving the movable clamping plate 31 is installed on the test platform 11. Before starting the test, the technician first places the sample to be tested on the test platform 11 and makes the rear side of the sample abut against the rear abutment plate 12. Then, the second cylinder 33 pushes the movable clamping plate 31, so that the movable clamping plate 31 presses against the sample to be tested, thereby fixing the sample to be tested. Furthermore, the movable clamping plate 31 has a built-in trigger (not shown in the figure). During the test, the trigger sends an electrical signal to the sample to be tested, thereby controlling the throttle body of the sample to be closed, so that the technician can test the sealing performance of the sample.

[0032] It should be noted that the functions to be implemented by the trigger in this embodiment are supported by a large number of mature technologies. The essence of this utility model is to optimize and combine the existing hardware connection methods for specific application scenarios in order to adapt to the solution of how to control the throttle of the sample under test to be in the closed state (without changing the internal structure of the trigger).

[0033] The test stand 11 is provided with a test cylinder 16, and two cylinders 23 are symmetrically installed on the test stand 11. A connecting plate 24 is fixedly connected to the outer curved surface of the test cylinder 16. The piston rod ends of the two cylinders 23 are fixedly connected to the connecting plate 24, and the test cylinder 16 is moved left and right by the connecting plate 24.

[0034] A test cylinder 16 that moves left and right is provided. A test chamber 28 is opened inside the test cylinder 16. A rubber tube 21 that communicates with the test chamber 28 is fixedly connected to the right end of the test cylinder 16. A second sealing ring 22 is fixedly connected to the outer curved surface of the rubber tube 21. A pressure detector 25 is installed on the inner curved surface of the test chamber 28. A negative pressure fan 27 that communicates with the test chamber 28 is fixedly connected to the left end of the test cylinder 16.

[0035] A fan 13 is installed on the right side of the test bench 11. A bellows 14 is fixed to the air outlet of the fan 13. A first sealing ring 15 is fixed to the end of the bellows 14. An open iron ring 17 is fixedly connected to the outer curved surface of the first sealing ring 15. Iron pieces 18 are symmetrically arranged at the opening of the open iron ring 17. A through hole 19 is opened on one side of the iron piece 18. A tightening screw 20 is installed in the through hole 19. The tightening screw 20 is threaded to the iron piece 18 on the other side. After the sample to be tested is fixed by the second cylinder 33, the technician first puts the first sealing ring 15 on the interface of the sample to be tested and rotates the tightening screw 20 to tighten the open iron ring 17, thereby achieving the purpose of fixing the first sealing ring 15 and ensuring that there is no leakage at the connection between the sample to be tested and the bellows 14.

[0036] Subsequently, cylinder 23 moves test cylinder 16 closer to the sample to be tested, and inserts rubber tube 21 into the cavity of the sample to be tested, ensuring that sealing ring 22 is in contact with the sample to ensure the sealing of the connection between rubber tube 21 and the sample. Then, negative pressure fan 27 evacuates the test chamber 28, making the test chamber 28 negative pressure, and the pressure detector 25 records the pressure in the test chamber 28 at this time. Then, fan 13 slowly delivers airflow to the sample to be tested through bellows 14. During the airflow delivery process, the pressure detector 25 detects and monitors the pressure change in the test chamber 28 in real time. If the pressure in the test chamber 28 does not change, it indicates that the valve sealing of the sample to be tested is qualified.

[0037] In addition, the test cylinder 16 is provided with an air pipe 29 that communicates with the test chamber 28. A sealing cap 30 is threaded onto the air pipe 29. After the test, the tester first unscrews the sealing cap 30 to allow the test chamber 28 to communicate with the outside atmosphere, thereby relieving the negative pressure state inside the test chamber 28. This makes it easier for the technician to separate the test cylinder 16 from the sample to be tested. Then, the technician loosens the tightening screw 20 and removes the first sealing ring 15 from the interface of the sample to be tested. The sample can then be taken away and the next round of testing can be carried out.

[0038] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A throttle body anti-leakage testing device, comprising a test bench (11), characterized in that: A rear abutment plate (12) is fixedly connected to the test platform (11), and a clamping mechanism is provided on the front side of the rear abutment plate (12); A fan (13) is installed on the right side of the test bench (11). A corrugated pipe (14) is fixed on the air outlet of the fan (13). A first sealing ring (15) is fixed at the end of the corrugated pipe (14). A tightening component is provided on the first sealing ring (15). The test bench (11) is provided with a test cylinder (16) that moves left and right. A test cavity (28) is opened inside the test cylinder (16). A test component is provided inside the test cavity (28). A sealing component is provided at the end of the test cylinder (16). The test bench (11) is equipped with a drive mechanism for moving the test cylinder (16) left and right.

2. The throttle body anti-leakage testing device according to claim 1, characterized in that: The tightening assembly includes an open iron ring (17), which is fixedly connected to the first sealing ring (15); The opening of the open iron ring (17) is symmetrically provided with iron plates (18), and a through hole (19) is provided on one side of the iron plate (18). A tightening screw (20) is provided in the through hole (19), and the tightening screw (20) is threadedly connected to the iron plate (18) on the other side.

3. The throttle body anti-leakage testing device according to claim 1, characterized in that: The sealing assembly includes a rubber tube (21), which is fixedly connected to the right end of the test tube (16); A second sealing ring (22) is fixedly connected to the outer curved surface of the rubber tube (21).

4. The throttle body anti-leakage testing device according to claim 1, characterized in that: The drive mechanism includes a first cylinder (23), and there are two first cylinders (23), which are symmetrically arranged on the test bench (11). A connecting plate (24) is fixedly connected to the outer curved surface of the test cylinder (16), and the piston rod of the first cylinder (23) is fixedly connected to the connecting plate (24).

5. The throttle body anti-leakage testing device according to claim 1, characterized in that: The test assembly includes a barometer (25), which is fixedly connected to the inner curved surface of the test chamber (28); A negative pressure fan (27) is fixedly connected to the left end of the test cylinder (16).

6. The throttle body anti-leakage testing device according to claim 5, characterized in that: The test tube (16) is provided with an air tube (29) that communicates with the test chamber (28), and a sealing cap (30) is threaded onto the air tube (29).

7. The throttle body anti-leakage testing device according to claim 1, characterized in that: The clamping mechanism includes a movable clamping plate (31); The test bench (11) is equipped with a second cylinder (33) for driving the movable clamp (31), and the movable clamp (31) has a built-in trigger.

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