Airtight vibration tool for tire pressure sensor vibration experiment

Abstract

This utility model discloses an airtight vibration fixture for tire pressure sensor vibration testing, comprising: a vibration base positioned on an external vibration generator, with a test slot on its top; a partition structure disposed within the test slot, having several simulated wheel hub holes on it, with the valve stem of the tire pressure sensor inserted and positioned in the simulated wheel hub holes; and a top cover disposed on the vibration base and sealing the test slot. The partition structure, test slot, and top cover are airtightly connected, separating several independent sealed cavities. The valve stem of the tire pressure sensor extends into one sealed cavity, and its other end extends into an adjacent sealed cavity. The top cover has several air source connectors connecting an external air source to the corresponding sealed cavity. This utility model solves the problem that existing tire pressure sensor vibration testing fixtures cannot simultaneously perform large-scale tire pressure sensor testing, nor can they simultaneously monitor vibration and air pressure, thus affecting vibration testing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tire pressure sensor testing technology, specifically to an airtight vibration fixture for tire pressure sensor vibration testing. Background Technology

[0002] Tire pressure sensors, as automotive components, are mounted on car wheel hubs. They monitor tire pressure in real time and provide timely warnings when pressure exceeds the normal operating range, helping drivers quickly identify and prevent potential safety hazards. The airtightness of the tire pressure sensor significantly affects its stability and reliability, which is crucial for ensuring vehicle safety.

[0003] Vibration testing is a common procedure for testing the airtightness of tire pressure sensors. It simulates the vibration and impact environments a vehicle might encounter during driving by applying specific vibrations to the tire pressure sensor on a vibration fixture. The internal pressure changes within the simulated tire's sealing structure, where the sensor is connected, are then measured to determine the sensor's airtightness. However, existing tire pressure sensor vibration testing fixtures cannot simultaneously perform large-scale testing of tire pressure sensors, nor can they simultaneously monitor vibration and air pressure, thus affecting testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an airtight vibration fixture for tire pressure sensor vibration testing, in order to solve the problem that existing tire pressure sensor vibration testing fixtures cannot simultaneously perform large-scale tire pressure sensor testing operations, nor can they simultaneously monitor vibration and air pressure, thus affecting vibration testing efficiency.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an airtight vibration fixture for tire pressure sensor vibration testing, comprising:

[0006] The vibration base is positioned on an external vibration generator, and a test slot is provided on its top.

[0007] A partition structure is arranged in the test slot, and several simulated wheel hub holes are provided on it. The valve stem of the tire pressure sensor is inserted and positioned on the simulated wheel hub holes.

[0008] The top cover is installed on the vibration base and seals the test slot;

[0009] The partition structure, test slot, and top cover are airtightly connected, separating several independent sealed cavities. The valve of one end of the tire pressure sensor extends into one of the sealed cavities, and its other end extends into another adjacent sealed cavity. The top cover is provided with several air source connectors that connect external air sources to the corresponding sealed cavities.

[0010] As a further description of the above technical solution:

[0011] A column is provided at the side corner of the vibration base, and the column is connected to the top edge of the vibration base extending laterally.

[0012] As a further description of the above technical solution:

[0013] The partition structure includes several simulated wheel hub uprights, which are radially arranged as a single unit.

[0014] As a further description of the above technical solution:

[0015] The edge of the partition structure is provided with a sealing sleeve, which is airtight and abuts against the inner wall of the test tank or the surface of the top cover.

[0016] As a further description of the above technical solution:

[0017] The top cover is positioned on the vibration base by bolt assembly.

[0018] As a further description of the above technical solution:

[0019] The vibration base is provided with an annular groove on the outside of the test groove, and a sealing ring is embedded in the annular groove. The sealing ring is in airtight contact with the surface of the top cover.

[0020] In summary, by adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0021] This utility model's airtight vibration fixture, through the setting of a vibration base and a detachable partition structure inside the upper cover, can conveniently achieve simultaneous vibration testing of a large number of tire pressure sensors. Furthermore, during the vibration of the tire pressure sensors, the air pressure changes in the sealed cavity can be monitored in real time to quickly determine the airtightness of the tire pressure sensors, thereby improving the efficiency of vibration testing. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an airtight vibration fixture used in a tire pressure sensor vibration test.

[0024] Figure 2This is a disassembly diagram of an airtight vibration fixture used in a tire pressure sensor vibration test.

[0025] Figure 3 This is a cross-sectional view of an airtight vibration fixture used in a tire pressure sensor vibration test.

[0026] Legend:

[0027] 1. Vibration base; 2. Test slot; 3. Baffle structure; 4. Simulated wheel hub hole; 5. Top cover; 6. Column; 7. Top edge; 8. Annular groove; 10. Tire pressure sensor; 11. Valve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 limitations on this utility model.

[0030] Please see Figure 1-3 This utility model provides a technical solution: an airtight vibration fixture for tire pressure sensor vibration testing, comprising:

[0031] Vibration base 1, which is positioned on an external vibration generating device, and a test groove 2 is provided on its top;

[0032] The partition structure 3 is arranged in the test groove 2 and has several simulated wheel hub holes 4. The valve stem 11 of the tire pressure sensor 10 is inserted and positioned on the simulated wheel hub holes 4.

[0033] The upper cover 5 is installed on the vibration base 1 and seals the test groove 2;

[0034] The partition structure 3, test slot 2, and upper cover 5 are airtightly connected, which separates several independent sealed cavities. The valve 11 at one end of the tire pressure sensor 10 extends into one of the sealed cavities, and its other end extends into another adjacent sealed cavity. The upper cover 5 is provided with several air source connectors that connect the external air source to the corresponding sealed cavity.

[0035] A column 6 is provided at the side corner of the vibration base 1, and the column 6 connects to the top edge 7 extending laterally from the top of the vibration base 1. This improves the structural strength of the vibration base 1 itself, and thus improves the stability of its connection with the vibration table of the external vibration generating device.

[0036] The partition structure 3 includes several simulated wheel hub uprights, which are radially and integrally arranged. The simulated wheel hub holes 4 on the simulated wheel hub uprights have a similar structure to the holes on the wheel hub where the valve stem 11 connects, improving the matching degree between the simulated environment and the actual assembly and use environment of the tire pressure sensor, thereby ensuring more accurate vibration test results of the tire pressure sensor. Different simulated wheel hub uprights can be equipped with simulated wheel hub holes 4 corresponding to different models of tire pressure sensors, so as to realize synchronous vibration testing of a large number of tire pressure sensors of different models, improving testing efficiency.

[0037] The edge of the partition structure 3 is provided with a sealing sleeve, which is airtightly abutting against the inner wall of the test groove 2 or the surface of the upper cover 5. The upper cover 5 is bolted and positioned on the vibration base 1. The vibration base 1 is provided with an annular groove 8 on the outer side of the test groove 2, and a sealing ring is embedded in the annular groove 8, which is airtightly abutting against the surface of the upper cover 5. This improves the airtightness of the structural assembly and positioning, avoiding air leakage that could affect the test results.

[0038] The working principle of the airtight vibration fixture for tire pressure sensor vibration test in this embodiment includes: before the test, the valve 11 of the tire pressure sensor 10 is inserted and assembled into the simulated wheel hub hole 4 of the partition structure 3. By applying a specified torque to the bolts and nuts on the valve 11, the valve 11 and the simulated wheel hub hole 4 are airtightly locked. Then, the partition structure 3 is placed into the test slot 2, the upper cover 5 is assembled on the vibration base 1, and the vibration base 1 is positioned on the vibration table. During the test, gas is injected into the sealed cavity and maintained within a certain pressure range. The vibration table applies vibration to the vibration fixture. The pressure value of the sealed cavity is observed in real time through the pressure gauge connected to the gas source. If the pressure drops, it indicates that the airtightness of the corresponding tire pressure sensor has failed.

[0039] In summary, due to the adoption of the above technical solution, the airtight vibration fixture for tire pressure sensor vibration testing in this embodiment has the following advantages compared with the prior art:

[0040] This utility model's airtight vibration fixture, through the setting of a vibration base and a detachable partition structure inside the upper cover, can conveniently achieve simultaneous vibration testing of a large number of tire pressure sensors. Furthermore, during the vibration of the tire pressure sensors, the air pressure changes in the sealed cavity can be monitored in real time to quickly determine the airtightness of the tire pressure sensors, thereby improving the efficiency of vibration testing.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An airtight vibration fixture for a tire pressure sensor vibration test, characterized in that, include: The vibration base is positioned on an external vibration generator, and a test slot is provided on its top. A partition structure is arranged in the test slot, and several simulated wheel hub holes are provided on it. The valve stem of the tire pressure sensor is inserted and positioned on the simulated wheel hub holes. The top cover is installed on the vibration base and seals the test slot; The partition structure, test slot, and top cover are airtightly connected, separating several independent sealed cavities. The valve of one end of the tire pressure sensor extends into one of the sealed cavities, and its other end extends into another adjacent sealed cavity. The top cover is provided with several air source connectors that connect external air sources to the corresponding sealed cavities.

2. The airtight vibration fixture for tire pressure sensor vibration testing according to claim 1, characterized in that, A column is provided at the side corner of the vibration base, and the column is connected to the top edge of the vibration base extending laterally.

3. The airtight vibration fixture for tire pressure sensor vibration testing according to claim 1, characterized in that, The partition structure includes several simulated wheel hub uprights, which are radially arranged as a single unit.

4. The airtight vibration fixture for a tire pressure sensor vibration test according to claim 1, characterized in that, The edge of the partition structure is provided with a sealing sleeve, which is airtightly abutting against the inner wall of the test tank or the surface of the top cover.

5. The airtight vibration fixture for a tire pressure sensor vibration test according to claim 1, characterized in that, The top cover is positioned on the vibration base by bolt assembly.

6. The airtight vibration fixture for a tire pressure sensor vibration test according to claim 1, characterized in that, The vibration base is provided with an annular groove on the outside of the test groove, and a sealing ring is embedded in the annular groove. The sealing ring is in airtight contact with the surface of the top cover.

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