Tire air tightness automatic detection device

By designing a closed-loop automatic tire air tightness detection device, the problem of water splashing was solved, enabling convenient tire air tightness detection and marking.

CN224176029UActive Publication Date: 2026-04-28SHANDONG YOUYOU RUBBER TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG YOUYOU RUBBER TECHNOLOGY CO LTD
Filing Date
2025-06-10
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing tire air tightness testing devices cause water droplets to splash during testing, affecting workers' observation and marking, and the water splashing on the tire surface makes testing difficult.

Method used

An automatic tire air tightness testing device was designed, comprising a workbench, a water tank, a clamping device, and a top cover. The device achieves tire rotational sealing testing through a hydraulic rod and a displacement device. The design of rubber gloves and a marker pen ensures the water tank's sealing and convenient marking during the testing process.

Benefits of technology

This technology avoids water splashing during the testing process, ensuring that staff can safely approach the testing device for observation and marking, thus improving the convenience and accuracy of the testing.

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Abstract

The utility model relates to the technical field of automatic detection devices, and discloses a tire air tightness automatic detection device which comprises a workbench, a water tank and an upper cover, one side of the workbench is fixedly connected with a supporting rod, a displacement device is fixedly installed between the supporting rod and the workbench, the top of the workbench is provided with a sliding seat, and the sliding seat is fixedly connected with the water tank. The displacement device is started, the displacement device drives the sliding base, the clamping device and the tire to descend, the shaft rod of the clamping device is moved into the shaft groove, meanwhile, the tire enters the water tank and is soaked in tap water, a worker moves the upper cover, the tire is clamped in the clamping device, and the tire is clamped in the clamping device. The bottom end of the hydraulic rod drives the upper cover to move to the top of the water tank, the telescopic end of the hydraulic rod drives the upper cover to descend, an opening in the top of the water tank is closed, a stop lever on one side of the upper cover is inserted into a shaft groove, the four sides of the water tank are in a closed state, and the water splashing phenomenon during air tightness detection of tires in the water tank is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of automatic detection device technology, and in particular to an automatic tire air tightness detection device. Background Technology

[0002] As the only part of a vehicle that comes into contact with the ground, the performance of tires directly affects safety, comfort, and energy efficiency. Automatic tire air tightness testing devices are key equipment in the tire manufacturing, retreading, and quality inspection processes. Their core function is to ensure that the tire's sealing performance meets safety standards, thereby avoiding problems such as tire blowouts and insufficient tire pressure caused by air leaks.

[0003] An existing vehicle tire air tightness testing device (announcement number: CN213301697U) has at least the following drawbacks: when the tire rotates, the water droplets attached to the surface are thrown out by centrifugal force. At the same time, the deeper treads on the tire surface will "catch" the water flow, which will be splashed when the tire rotates to the highest point. This causes water to splash out of the water tank and into the area near the testing device, which is not conducive to staff getting close to the testing device for observation and marking. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic tire air tightness detection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic tire air tightness testing device includes a workbench, a water tank, and a top cover. A support rod is fixedly connected to one side of the workbench, and a displacement device is fixedly installed between the support rod and the workbench. A slide is provided on the top of the workbench, and the slide is slidably mounted on the displacement device. A clamping device is fixedly installed on the top of the slide. The water tank is fixedly connected to the top of the workbench and is located on one side of the clamping device. A shaft groove is formed on the side of the water tank near the slide. The top cover is located on the top of the water tank. A stop rod is fixedly connected to the bottom of the top cover near the shaft groove. The stop rod is inserted into the shaft groove. The shaft of the clamping device is rotatably connected between the stop rod and the shaft groove. Hydraulic rods are provided on both sides of the outside of the water tank. The two ends of the hydraulic rods are respectively rotatably connected to the middle of the clamping frame on one side of the top cover and the water tank. A plurality of hydraulic rods are located at the same end of the water tank and the top cover.

[0007] As a further embodiment of this utility model, a side groove is provided on one side of the top of the workbench, and a drain pipe is fixedly connected through the bottom of the water tank. The drain pipe is located inside the side groove, and an electric control valve is fixedly connected to the outer wall of the drain pipe. A sleeve is fixedly connected through the outer side of the end of the water tank away from the hydraulic rod.

[0008] As a further embodiment of this utility model, a clamping groove is provided on one side of the outer wall of the sleeve, and a rubber glove is provided on one side of the water tank. The opening of one side of the rubber glove is fitted onto one end of the sleeve and wraps around the clamping groove. An elastic wire is provided on the outside of the rubber glove. The elastic wire is fitted onto the outside of the rubber glove and fixedly installed inside the clamping groove.

[0009] As a further embodiment of this utility model, a pen holder is fixedly installed on one side of the inner wall of the water tank that connects to the sleeve opening. A marker pen is inserted into the pen holder. A top cover is provided on the top of the pen holder. An installation groove is opened inside the top cover. Several ventilation openings are opened through the top and bottom sides of the top cover. The top cover includes a fan, a limiting plate, and a magnetic insertion plate.

[0010] As a further embodiment of this utility model, the fan is fixedly installed on the top of the upper cover, the fan blades are located inside the mounting groove, the limiting plate is located at the bottom of the fan blades, the limiting plate is integrally connected to both sides of the inner wall of the mounting groove, and the magnetic insertion plate is located between the limiting plate and the bottom ventilation opening of the upper cover.

[0011] As a further embodiment of this utility model, the magnetic insert plate passes through the water tank and the top cover and is slidably connected inside the mounting groove. A magnet is fixedly connected to the side of the water tank and the top cover near the magnetic insert plate. The inner side of the magnetic insert plate is magnetically connected to the outer side of the magnet, and the magnet is located at the top of the sleeve.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Staff fill the water tank with tap water. The tank is transparent to allow staff to easily observe the water level and prevent tap water from overflowing the pipe sleeve and entering the inside of the rubber gloves. After the tank is full, the displacement device is activated. The displacement device moves the slide, clamping device, and tire downwards (the displacement device includes a lead screw, limit rod, and motor, used to move the slide, clamping device, and tire; the clamping device includes a rotating motor, shaft, and tire fixing components, which provides both fixing and rotation functions for the tire, used to rotate the tire inside the water tank for airtightness testing). The device's shaft is moved into the shaft groove, while the tire enters the water tank and is immersed in tap water. The operator moves the top cover, causing the bottom end of the hydraulic rod to move the top cover to the top of the water tank. At the same time, the telescopic end of the hydraulic rod causes the top cover to descend, closing the top opening of the water tank. The stop bar on one side of the top cover is inserted into the shaft groove, and the arc groove at the bottom end of the stop bar fits against the shaft of the clamping device. The stop bar does not affect the rotation of the shaft of the clamping device. At this time, the water tank is closed on all four sides, preventing water splashing when the tire is tested for air tightness inside the water tank, and making it easier for the operator to approach the testing device to observe the tire.

[0014] 2. When a tire leaks, the worker pushes rubber gloves into the water tank, puts on the gloves, and then takes a marker from the pen holder on the inner wall of the water tank. The worker locates and marks the tire leak point. The pen holder is positioned higher than the pen holder and away from the tap water, which makes it easier for the worker to mark the tire and prevents grease and dust from the fingers from adhering to the tire surface and covering up the tiny leak. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an automatic tire air tightness detection device proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the water tank structure of an automatic tire air tightness detection device proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the sleeve structure of an automatic tire air tightness detection device proposed in this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the upper cover of an automatic tire air tightness detection device proposed in this utility model;

[0019] Figure 5 This is a schematic diagram of the workbench of an automatic tire air tightness testing device proposed in this utility model.

[0020] In the diagram: 1. Workbench; 101. Side groove; 2. Water tank; 201. Shaft groove; 202. Magnet; 203. Drain pipe; 204. Electric control valve; 3. Pen holder; 301. Marker pen; 4. Sleeve; 401. Clamping groove; 402. Elastic wire; 403. Rubber glove; 5. Hydraulic rod; 6. Top cover; 601. Fan; 602. Limiting plate; 603. Magnetic insertion plate; 604. Stop bar; 605. Ventilation opening; 7. Support rod; 8. Displacement device; 9. Slide; 10. Clamping device. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" 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 "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Reference Figures 1-5 An automatic tire air tightness testing device includes a workbench 1, a water tank 2, and a top cover 6. A support rod 7 is fixedly connected to one side of the workbench 1, and a displacement device 8 is fixedly installed between the support rod 7 and the workbench 1. A slide 9 is provided on the top of the workbench 1, and the slide 9 is slidably installed on the displacement device 8. A clamping device 10 is fixedly installed on the top of the slide 9. The water tank 2 is fixedly connected to the top of the workbench 1 and is located on one side of the clamping device 10. A shaft groove 201 is opened on the side of the water tank 2 near the slide 9. The top cover 6 is located on the top of the water tank 2. A stop rod 604 is fixedly connected to the bottom of the side of the top cover 6 near the shaft groove 201. The stop rod 604 is inserted into the shaft groove 201. The shaft of the clamping device 10 is rotatably connected between the stop rod 604 and the shaft groove 201. Hydraulic rods 5 are provided on both sides of the outside of the water tank 2. The two ends of the hydraulic rods 5 are respectively rotatably connected to the middle of the clamping frame on one side of the top cover 6 and the water tank 2. Several hydraulic rods 5 are located at the same end of the water tank 2 and the top cover 6.

[0025] During use, staff fill water tank 2 with tap water. Water tank 2 is transparent, allowing staff to easily observe the water level and preventing tap water from overflowing the pipe sleeve and entering the rubber glove 403. After water tank 2 is full, the displacement device 8 is activated. The displacement device 8 lowers the slide 9, clamping device 10, and tire (the displacement device 8 includes a lead screw, a limit rod, and a motor, used to move the slide 9, clamping device 10, and tire; the clamping device 10 includes a rotating motor, a shaft, and a tire fixing component, providing both fixing and rotation functions for the tire, used to rotate the tire inside water tank 2 for airtightness testing). This allows the clamping device 10 to... The axle is moved into the axle groove 201, and at the same time the tire enters the water tank 2 and is immersed in tap water. The operator moves the top cover 6, so that the bottom end of the hydraulic rod 5 moves the top cover 6 to the top of the water tank 2. At the same time, the telescopic end of the hydraulic rod 5 moves the top cover 6 down, closing the top opening of the water tank 2. The stop bar 604 on one side of the top cover 6 is inserted into the axle groove 201. The arc groove at the bottom end of the stop bar 604 fits against the axle of the clamping device 10, and the stop bar 604 does not affect the rotation of the axle of the clamping device 10. At this time, the water tank 2 is closed on all four sides to prevent water splashing when the tire is tested for air tightness inside the water tank 2, and to facilitate the operator to approach the testing device to observe the tire.

[0026] In this embodiment, a side groove 101 is provided on one side of the top of the workbench 1, and a drain pipe 203 is fixedly connected through the bottom of the water tank 2. The drain pipe 203 is located inside the side groove 101, and an electric control valve 204 is fixedly connected to the outer wall of the drain pipe 203. A sleeve 4 is fixedly connected through the outer side of the end of the water tank 2 away from the hydraulic rod 5.

[0027] During use, after the test is completed, the staff will start the electric control valve 204 through the control terminal. The electric control valve 204 will open the drain pipe 203 to drain the tap water inside the water tank 2, making it convenient to replace the water inside the water tank 2.

[0028] In this embodiment, a clamping groove 401 is provided on one side of the outer wall of the sleeve 4, and a rubber glove 403 is provided on one side of the water tank 2. The opening of the rubber glove 403 is fitted onto one end of the sleeve 4 and wraps around the clamping groove 401. An elastic wire 402 is provided on the outside of the rubber glove 403. The elastic wire 402 is fitted onto the outside of the rubber glove 403 and fixedly installed inside the clamping groove 401.

[0029] When the rubber glove 403 is damaged during use, the staff can untie the elastic wire 402 in the groove of the sleeve 4 and then disassemble and replace the rubber glove 403. The elastic wire 402 fixes the rubber glove 403 on the sleeve 4 to prevent the staff from taking off the rubber glove 403 and pulling it away from the sleeve 4, thus affecting the marking of the leak point.

[0030] In this embodiment, a pen holder 3 is fixedly installed on one side of the pipe opening of the sleeve 4 on the inner wall of the water tank 2. A marker pen 301 is inserted into the pen holder 3. A top cover 6 is provided on the top of the pen holder 3. An installation groove is opened inside the top cover 6. Several ventilation holes 605 are opened through the top and bottom sides of the top cover 6. The top cover 6 includes a fan 601, a limiting plate 602 and a magnetic insertion plate 603.

[0031] When a tire leaks, the worker pushes the rubber gloves 403 into the water tank 2, puts on the gloves 403, and then takes out the marker pen 301 from the pen holder 3 on the inner wall of the water tank 2. The worker then locates and marks the tire leak point. The pen holder 3 is positioned higher than the pen holder 4 and away from the tap water, which makes it easier for the worker to mark the tire and prevents grease and dust from the fingers from adhering to the tire surface and covering up the tiny leak point.

[0032] In this embodiment, the fan 601 is fixedly installed on the top of the upper cover 6. The fan blade of the fan 601 is located inside the mounting groove. The limiting plate 602 is located at the bottom of the fan blade of the fan 601. The limiting plate 602 is integrally connected to both sides of the inner wall of the mounting groove. The magnetic insertion plate 603 is located between the limiting plate 602 and the bottom ventilation port 605 of the upper cover 6.

[0033] During use, after the test is completed, drain the tap water from inside the water tank 2, pull out the magnetic insert plate 603, open the vent 605, and start the top fan 601 on the top cover 6. The fan 601 generates suction, allowing outside air to enter the water tank 2 through the vent 605 to dry the tires, blowing away the water stains on the tire surface and making it easier for staff to pick up the tires.

[0034] In this embodiment, the magnetic insert plate 603 passes through the water tank 2 and the upper cover 6 and is slidably connected inside the mounting groove. The water tank 2 and the upper cover 6 are fixedly connected to the side of the magnetic insert plate 603. The inner side of the magnetic insert plate 603 is magnetically connected to the outer side of the magnet 202. The magnet 202 is located at the top of the sleeve 4.

[0035] When in use, after the tire is inside the water tank 2, the operator inserts the magnetic insert plate 603 into the top cover 6. The inside of the magnetic insert plate 603 is fixedly connected to the outside of the water tank 2 and the top cover 6 by the magnet 202. The magnetic insert plate 603 closes the bottom vent 605 of the top cover 6 to prevent water splashed into the vent 605 when the tire rotates, which would affect the fan 601.

[0036] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: When the operator pours tap water into the water tank 2, the water tank 2 is transparent, making it easy for the operator to observe the water level and preventing tap water from overflowing the pipe sleeve and entering the rubber glove 403. After the water tank 2 is filled with water, the displacement device 8 is activated. The displacement device 8 drives the slide 9, clamping device 10, and tire to descend, causing the shaft of the clamping device 10 to move into the shaft groove 201. At the same time, the tire enters the water tank 2 and is immersed in tap water. The operator moves the top cover 6, causing the bottom end of the hydraulic rod 5 to move the top cover 6 to the top of the water tank 2. Simultaneously, the telescopic end of the hydraulic rod 5 drives the top cover 6 to descend, closing the top opening of the water tank 2. The stop rod 604 on one side of the top cover 6 is inserted into the shaft groove 201. The arc groove at the bottom end of the stop rod 604 fits against the shaft of the clamping device 10, and the stop rod 604 does not affect the rotation of the shaft of the clamping device 10. At this time, the water tank 2 is closed on all four sides, preventing the tire from being submerged. During the airtightness test inside water tank 2, water splashing occurs, making it easier for staff to approach the testing device and observe the tires. When a tire airtightness problem is found, the staff pushes rubber gloves 403 into water tank 2, puts on the gloves 403, and then takes out a marker pen 301 from the pen holder 3 on the inner wall of water tank 2 to locate and mark the tire leak point. The pen holder 3 is positioned higher than the sleeve 4 and away from the tap water, which also facilitates the staff in marking the tires and prevents grease and dust from the fingers from adhering to the tire surface and obscuring small leak points. When the rubber gloves 403 are damaged, the staff unties the elastic wire 402 in the groove of the sleeve 4 and then removes and replaces the rubber gloves 403. The elastic wire 402 secures the rubber gloves 403 on the sleeve 4, preventing the rubber gloves 403 from being pulled away from the sleeve 4 when the staff removes them, thus affecting the marking of the leak point.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An automatic tire air tightness testing device, comprising a workbench (1), a water tank (2), and a top cover (6), characterized in that, A support rod (7) is fixedly connected to one side of the workbench (1). A displacement device (8) is fixedly installed between the support rod (7) and the workbench (1). A slide (9) is provided on the top of the workbench (1). The slide (9) is slidably installed on the displacement device (8). A clamping device (10) is fixedly installed on the top of the slide (9). The water tank (2) is fixedly connected to the top of the workbench (1). The water tank (2) is located on one side of the clamping device (10). A shaft groove (201) is opened on the side of the water tank (2) near the slide (9). The upper cover (6) is located... At the top of the water tank (2), a stop bar (604) is fixedly connected to the bottom of the upper cover (6) near the shaft groove (201). The stop bar (604) is inserted into the shaft groove (201). The shaft of the clamping device (10) is rotatably connected between the stop bar (604) and the shaft groove (201). Hydraulic rods (5) are provided on both sides of the outside of the water tank (2). The two ends of the hydraulic rods (5) are respectively rotatably connected to the middle of the locking frame on the side of the upper cover (6) and the water tank (2). Several hydraulic rods (5) are located at the same end of the water tank (2) and the upper cover (6).

2. The automatic tire air tightness detection device according to claim 1, characterized in that, The workbench (1) has a side groove (101) on one side of its top. The bottom of the water tank (2) is fixedly connected to a drain pipe (203). The drain pipe (203) is located inside the side groove (101). An electric control valve (204) is fixedly connected to the outer wall of the drain pipe (203). A sleeve (4) is fixedly connected to the outer side of the end of the water tank (2) away from the hydraulic rod (5).

3. The automatic tire air tightness detection device according to claim 2, characterized in that, A clamping groove (401) is provided on one side of the outer wall of the sleeve (4), and a rubber glove (403) is provided on one side of the water tank (2). The opening of the rubber glove (403) is fitted onto one end of the sleeve (4) and wraps around the clamping groove (401). An elastic wire (402) is provided on the outside of the rubber glove (403). The elastic wire (402) is fitted onto the outside of the rubber glove (403) and fixedly installed inside the clamping groove (401).

4. The automatic tire air tightness detection device according to claim 3, characterized in that, A pen holder (3) is fixedly installed on one side of the inner wall of the water tank (2) that connects to the opening of the sleeve (4). A marker pen (301) is inserted inside the pen holder (3). A top cover (6) is provided on the top of the pen holder (3). An installation groove is provided inside the top cover (6). Several ventilation openings (605) are provided on both the top and bottom sides of the top cover (6). The top cover (6) includes a fan (601), a limiting plate (602), and a magnetic insertion plate (603).

5. The automatic tire air tightness detection device according to claim 4, characterized in that, The fan (601) is fixedly installed on the top of the upper cover (6). The fan blade of the fan (601) is located inside the mounting groove. The limiting plate (602) is located at the bottom of the fan blade of the fan (601). The limiting plate (602) is integrally connected to both sides of the inner wall of the mounting groove. The magnetic insertion plate (603) is located between the limiting plate (602) and the bottom ventilation opening (605) of the upper cover (6).

6. The automatic tire air tightness detection device according to claim 5, characterized in that, The magnetic insert plate (603) passes through the water tank (2) and the top cover (6) and is slidably connected inside the mounting groove. The water tank (2) and the top cover (6) are fixedly connected to a magnet (202) on the side near the magnetic insert plate (603). The inner side of the magnetic insert plate (603) is magnetically connected to the outer side of the magnet (202). The magnet (202) is located at the top of the sleeve (4).

Citation Information

Patent Citations

  • Automobile tire air tightness detection device convenient for automatic transposition

    CN213301697U