Device for detecting air tightness of automobile tire

Abstract

The utility model discloses a device for detecting the air tightness of automobile tires, which comprises a device main body, the device main body is provided with two pools, and a plurality of tires can be placed on a plurality of brackets, so that when the tires are detected, a lifting block is driven by a hydraulic telescopic cylinder to vertically descend, and the air tightness of the tires is detected. According to the device, two brackets can be driven to vertically descend into a water tank, so that tire parts on the brackets are soaked in water, an electric telescopic rod drives a mounting frame connected to a connecting plate to vertically descend, and a driving friction roller and a driven roller abut against the tires on the brackets, so that the stability of the tires soaked in water is guaranteed, and the service life of the tires is prolonged. After the detection is finished, the tires on the brackets can be driven to be far away from the water tank through the hydraulic telescopic cylinders, and the lifting blocks are driven to rotate by a certain angle through the servo motors, so that the adjacent brackets are moved to the position over the water tank, the next round of detection is facilitated, the detection interval is greatly shortened, and the detection efficiency is improved. And the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of tire testing technology, specifically a device for testing the air tightness of automobile tires. Background Technology

[0002] With the rapid development of the automotive industry, our demand for cars has also increased. During driving, tires are crucial for the vehicle's operation, and their quality directly impacts the safety of ourselves and others. Therefore, tire quality must be strictly controlled. A leaking tire can render a vehicle immobile, or even cause a serious accident due to loss of control, which is extremely dangerous. Therefore, tire air tightness testing is essential. Current tire air tightness testing methods can only test one tire at a time, resulting in low efficiency.

[0003] Patent CN216116567U discloses a tire airtightness testing device, including a base plate, a tire support mechanism, a water reservoir, and a tire rotation drive mechanism. The tire support mechanism is mounted on the base plate and includes an arc-shaped support plate and two support cylinders, which are fixed to the base plate in a parallel manner. This invention features multiple positioning holes on the arc-shaped support plate, each capable of holding a tire, enabling simultaneous testing of multiple tires and improving work efficiency. The tire rotation drive mechanism can simultaneously rotate the tires in multiple positioning holes, achieving comprehensive tire testing.

[0004] However, after the device finishes inspecting the tires, the tires need to be removed before the next round of inspection can be carried out. The interval between each round of inspection is relatively long, and the inspection efficiency is generally not very high. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a device for detecting the air tightness of automobile tires, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a device for detecting the air tightness of automobile tires, comprising a main body, the main body having two water tanks, a servo motor installed at the center of the main body, a rotating block installed on the output shaft of the servo motor, a hydraulic telescopic cylinder installed on the rotating block, a lifting block installed on the output end of the hydraulic telescopic cylinder, four connecting rods connected to the lifting block, brackets welded to the connecting rods, multiple sets of rotating components arranged on the brackets, each set of rotating components consisting of two mutually symmetrical rotating wheels, two mutually symmetrical electric telescopic rods arranged on the main body, a connecting plate installed on the output end of the electric telescopic rods, a mounting frame connected to the connecting plate, and an active friction roller and a driven roller rotatably mounted on the mounting frame.

[0009] Preferably, each group of the rotating components is separated by a partition.

[0010] Preferably, a drive motor is mounted on the mounting frame, and the output shaft of the drive motor is mounted on the active friction roller.

[0011] Preferably, the rotating block has four vertical limiting grooves spaced apart along the circumference, and the lifting block has four vertical limiting blocks that are adapted to the vertical limiting grooves.

[0012] Preferably, the main body of the device has two symmetrical guide holes, and the bottom of the connecting plate is equipped with a guide rod that matches the guide holes.

[0013] Preferably, the surface of the active friction roller has multiple grooves.

[0014] Preferably, the four connecting rods are arranged at intervals along the circumferential direction on the lifting block.

[0015] Compared with existing technologies, this utility model provides a device for testing the air tightness of automobile tires, which has the following beneficial effects: This utility model, through the cooperation of a lifting block, a rotating block, and multiple brackets, allows multiple tires to be placed sequentially on multiple brackets. During tire testing, a hydraulic telescopic cylinder drives the lifting block to descend vertically, causing two of the brackets to descend vertically into a water tank, immersing the tires on the brackets in the water. An electric telescopic rod then drives the mounting frame connected to the connecting plate to descend vertically, causing the active friction roller and driven roller to abut against the tires on the brackets, ensuring the stability of the tires immersed in water and thus effectively testing tire air tightness. Simultaneously, a drive motor drives the active friction roller to rotate, which in turn rotates the tires on the brackets, allowing for a more comprehensive test of tire air tightness. After testing, a hydraulic telescopic cylinder moves the tires on the brackets away from the water tank, and a servo motor drives the lifting block to rotate at a certain angle, moving the adjacent brackets directly above the water tank for the next round of testing. This greatly shortens the testing interval and improves testing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the water tank and other structures of this utility model;

[0018] Figure 3 This is a side cross-sectional view of the rotating block and lifting block of this utility model.

[0019] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0020] The components include: 1. Main body of the device; 2. Lifting block; 3. Connecting rod; 4. Electric telescopic rod; 5. Connecting plate; 6. Mounting frame; 7. Drive motor; 8. Active friction roller; 9. Driven roller; 10. Bracket; 11. Rotating wheel; 12. Water tank; 13. Partition plate; 14. Servo motor; 15. Rotating block; 16. Hydraulic telescopic cylinder; 17. Guide hole; 18. Guide rod; 19. Vertical limiting groove; 20. Vertical limiting block. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-4 A device for detecting the air tightness of automobile tires includes a main body 1, with two water tanks 12. A servo motor 14 is installed at the center of the main body 1. A rotating block 15 is installed on the output shaft of the servo motor 14. A hydraulic telescopic cylinder 16 is installed on the rotating block 15. A lifting block 2 is installed on the output end of the hydraulic telescopic cylinder 16. Four connecting rods 3 are connected to the lifting block 2. A bracket 10 is welded to the connecting rods 3. Multiple sets of rotating components are arranged on the bracket 10. Each set of rotating components consists of two mutually symmetrical rotating wheels 11. Two mutually symmetrical electric telescopic rods 4 are arranged on the main body 1. A connecting plate 5 is installed on the output end of the electric telescopic rod 4. A mounting frame 6 is connected to the connecting plate 5. An active friction roller 8 and a driven roller 9 are rotatably mounted on the mounting frame 6.

[0025] By coordinating the lifting block 2, rotating block 15, and multiple brackets 10, multiple tires can be placed sequentially on multiple brackets 10. During tire testing, the hydraulic telescopic cylinder 16 drives the lifting block 2 to descend vertically, causing two of the brackets 10 to descend vertically into the water tank 12. This immerses the tires on the brackets 10 in water. The electric telescopic rod 4 drives the mounting frame 6 connected to the connecting plate 5 to descend vertically, causing the active friction roller 8 and driven roller 9 to abut against the tires on the brackets 10, ensuring the stability of the submerged tires and effectively testing tire air tightness. Simultaneously, the drive motor 7 drives the active friction roller 8 to rotate, which in turn rotates the tires on the brackets 10, allowing for a more comprehensive air tightness test. After testing, the hydraulic telescopic cylinder 16 moves the tires on the brackets 10 away from the water tank 12, and the servo motor 14 rotates the lifting block 2 by a certain angle, moving the adjacent brackets 10 directly above the water tank 12 for the next round of testing. This significantly shortens the testing interval and improves testing efficiency.

[0026] Specifically, in this embodiment, each set of rotating components is separated by a partition 13, which can prevent multiple tires on the same bracket 10 from contacting each other and affecting the detection effect.

[0027] Specifically, in this embodiment, a drive motor 7 is installed on the mounting frame 6, and the actuation output shaft of the drive motor 7 is installed on the active friction roller 8. The drive motor 7 can drive the active friction roller 8 to rotate, and then drive the tire to rotate through the active friction roller 8, so as to achieve comprehensive detection of the tire.

[0028] Specifically, in this embodiment, the rotating block 15 is provided with four vertical limiting grooves 19 spaced apart along the circumferential direction, and the lifting block 2 is provided with four vertical limiting blocks 20 that are adapted to the vertical limiting grooves 19.

[0029] By cooperating with the vertical limiting block 20 and the vertical limiting groove 19, the movement range of the lifting block 2 can be limited, making the movement process of the lifting block 2 smoother.

[0030] Specifically, in this embodiment, the main body 1 of the device has two symmetrical guide holes 17, and the bottom of the connecting plate 5 is equipped with a guide rod 18 that is compatible with the guide holes 17.

[0031] By using the guide rod 18 and guide hole 17, the movement direction of the connecting plate 5 and the mounting frame 6 can be restricted, making the movement of the mounting frame 6 smoother.

[0032] Specifically, in this embodiment, the surface of the active friction roller 8 is provided with multiple grooves to ensure the friction between the active friction roller 8 and the tire.

[0033] Specifically, in this embodiment, four connecting rods 3 are arranged at intervals along the circumferential direction on the lifting block 2.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the air tightness of a vehicle tire, comprising a device body, characterized in that: The device body is provided with two water pools, a servo motor is installed at the center position of the device body, a rotating block is installed on the action output shaft of the servo motor, a hydraulic telescopic cylinder is installed on the rotating block, a lifting block is installed on the output end of the hydraulic telescopic cylinder, four connecting rods are connected to the lifting block, brackets are welded on the connecting rods, a plurality of rotating assemblies are arranged on the brackets, each rotating assembly is composed of two mutually symmetrical rotating wheels, two mutually symmetrical electric telescopic rods are arranged on the device body, a connecting plate is installed on the action output end of the electric telescopic rod, an installation frame is connected to the connecting plate, and a driving friction roller and a driven roller are rotatably installed on the installation frame.

2. A device for detecting the air tightness of a vehicle tire according to claim 1, characterized in that: Each of the rotating assemblies is separated by a partition plate.

3. The device for detecting the air tightness of a vehicle tire according to claim 1, characterized in that: A driving motor is installed on the installation frame, and the action output shaft of the driving motor is installed on the driving friction roller.

4. The device for detecting the air tightness of a vehicle tire according to claim 1, characterized in that: Four vertical limiting grooves are arranged on the rotating block in a circumferential direction, and four vertical limiting blocks are protruded in the lifting block and matched with the vertical limiting grooves.

5. The device for detecting the air tightness of a vehicle tire according to claim 1, characterized in that: Two guide holes are arranged on the device body in a symmetrical manner, and a guide rod matched with the guide holes is installed at the bottom of the connecting plate.

6. The device for detecting the air tightness of a vehicle tire according to claim 1, characterized in that: A plurality of grooves are arranged on the surface of the driving friction roller.

7. The device for detecting the air tightness of a vehicle tire according to claim 1, characterized in that: The four connecting rods are arranged on the lifting block in a circumferential direction.

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