A tire leak detection mechanism
By designing a convenient tire fixing and removal mechanism, and combining the use of cylinders, gears, and blowers, the problem of cumbersome fixing during tire leak detection is solved, achieving efficient and accurate detection results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINESE PEOPLES LIBERATION ARMY UNIT 69241
- Filing Date
- 2025-04-24
- Publication Date
- 2026-07-17
Smart Images
Figure CN224518037U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tire production and testing technology, specifically a tire leak detection mechanism. Background Technology
[0002] Tires are circular elastic rubber products that are mounted on various vehicles or machinery and roll on the ground. Tires are often used under complex and harsh conditions. When driving, they are subjected to various deformations, loads, forces and high and low temperatures. Therefore, they must have high load-bearing capacity, traction capacity and cushioning capacity. In order to ensure the safety of tires during use, it is necessary to conduct air leakage detection during the tire production process. Therefore, a tire air leakage detection mechanism is proposed. Traditional tire leak detection methods include air pressure monitoring, acoustic detection, and infrared detection. Among these, water immersion detection is a direct and effective method that uses water bubbles to determine if there is a leak by immersing the tire in a water tank.
[0003] However, the existing solutions still have some problems. The process of fixing and disassembling the tire and the testing mechanism is cumbersome, which leads to a reduction in testing efficiency. Therefore, a tire leak detection mechanism is proposed to address the above problems. Utility Model Content
[0004] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a tire leak detection mechanism.
[0005] The technical solution adopted by this utility model to solve its technical problem is a tire leak detection mechanism, including: a support platform, a water tank fixedly connected to the bottom of the support platform, a support frame fixedly connected to the upper surface of the support platform, a drive motor installed on the top of the support frame, a bidirectional threaded rod fixedly connected to the output end of the drive motor, the two ends of the bidirectional threaded rod being rotatably connected to the support frame and the support platform respectively, a movable block threadedly connected to the bidirectional threaded rod, the movable block being located inside the support frame, a connecting frame fixedly connected to one side of the movable block, a cylinder installed on the connecting frame, a limit plate fixedly connected to the output end of the cylinder, a limit groove opened on the connecting frame, the limit plate being slidably connected inside the limit groove, a rack fixedly connected to one side of the limit plate, and gears meshing with both sides of the rack. When the drive motor is started, the bidirectional threaded rod rotates. Because the thread on the bidirectional threaded rod matches the internal thread of the movable block, the height of the movable block can be adjusted, thereby adjusting the position of the tire.
[0006] Preferably, a connecting shaft is fixedly connected to the bottom of both sets of gears. A limit ring is fixedly connected to one end of the connecting shaft. A connecting ring is fixedly connected to the limit ring. A clamping plate is fixedly connected to the connecting ring. The gears rotate under the drive of the rack, which in turn drives the clamping plate to rotate through the connecting shaft. This allows the distance between the two clamping plates to be adjusted, thereby fixing and removing the tire.
[0007] Preferably, an anti-slip pad is fixedly connected to one side of the clamping plate. Both the clamping plate and the anti-slip pad have through holes. One set of the clamping plates has insertion holes. A positioning rod is fixedly connected to one side of the clamping plate. The positioning rod and the rubber pad enter the insertion holes, thereby cooperating with the two sets of connecting shafts to fix the position of the two sets of clamping plates, thereby fixing the tire.
[0008] Preferably, a rubber pad is fixedly connected to one side of the positioning rod, the positioning rod is movably connected inside the insertion hole, a fan is fixedly connected to the upper surface of the support platform, and the rubber pad is located outside a set of clamps, so that the position of the positioning rod can be fixed.
[0009] Preferably, the output end of the blower is fixedly connected to an air supply pipe, the inner wall of the air supply pipe is fixedly connected to an elastic sheet, and the inner wall of the air supply pipe is hinged to a baffle. One end of the elastic sheet is fixedly connected to one side of the baffle. After the blower stops running, the impact force on the baffle disappears. Under the action of the gas inside the tire and the elastic sheet, multiple sets of baffles are brought into contact, thereby sealing the air supply pipe and preventing gas backflow.
[0010] Preferably, an anti-slip ring is fixedly connected to the outer surface of one end of the air supply pipe, a reinforcing ring is fixedly connected to the anti-slip ring, a bolt is threaded onto the reinforcing ring, and a pressure plate is fixedly connected to one end of the bolt. Rotating the bolt causes the pressure plate to squeeze one side of the reinforcing ring, thereby reducing the size of the reinforcing ring and improving the tightness of the connection between the air supply pipe and the tire inflation pipe. This avoids the situation where the test results are incorrect due to gaps in the connection between the two when the tire is tested in the water tank.
[0011] The advantages of this invention are as follows: The cylinder is activated, pulling the rack towards the support frame. This causes the rack to drive the gears on both sides to rotate synchronously, which in turn drives the clamping plates to rotate via the connecting shaft. This allows the positioning rod and rubber pad to enter the insertion hole. The two sets of connecting shafts work together to fix the tire. The cylinder's operation pushes the rack outwards towards the connecting frame, causing the gears on both sides to rotate in the opposite direction. This disconnects one side of the two sets of clamping plates, allowing the tested tire to be removed from the testing mechanism. This improves the ease of installing and removing the tire from the testing mechanism, thereby increasing testing efficiency.
[0012] This invention involves inserting the inflation tube into the anti-skid ring, connecting the remaining air supply tubes, and then screwing the bolt into the reinforcing ring. Rotating the bolt causes the pressure plate to squeeze one side of the reinforcing ring, reducing the ring's loop size. This improves the tightness of the connection between the air supply tube and the tire inflation tube, preventing erroneous test results due to gaps in the connection when the tire is tested in a water tank, thereby improving the accuracy of the test. Attached Figure Description
[0013] 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.
[0014] Figure 1 This is a schematic diagram of the overall structure; Figure 2 This is a schematic diagram of the support platform; Figure 3 This is a schematic cross-sectional view of the fixed component; Figure 4 This is a schematic diagram of a cross-section of a gas pipeline; Figure 5 This is a schematic diagram of the reinforcement components.
[0015] In the diagram: 1. Support platform; 2. Water tank; 3. Support frame; 4. Two-way threaded rod; 5. Drive motor; 6. Moving block; 7. Connecting frame; 8. Cylinder; 9. Limiting groove; 10. Limiting plate; 11. Rack; 12. Gear; 13. Connecting shaft; 14. Limiting ring; 15. Connecting ring; 16. Clamping plate; 17. Anti-slip pad; 18. Positioning rod; 19. Rubber pad; 20. Fan; 21. Air supply pipe; 22. Elastic sheet; 23. Baffle; 24. Anti-slip ring; 25. Reinforcing ring; 26. Bolt; 27. Pressure plate. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-5As shown, a tire leak detection mechanism includes: a support platform 1, a water tank 2 fixedly connected to the bottom of the support platform 1, a support frame 3 fixedly connected to the upper surface of the support platform 1, a drive motor 5 mounted on the top of the support frame 3, a bidirectional threaded rod 4 fixedly connected to the output end of the drive motor 5, the two ends of the bidirectional threaded rod 4 being rotatably connected to the support frame 3 and the support platform 1 respectively, a movable block 6 threadedly connected to the bidirectional threaded rod 4, the movable block 6 being located inside the support frame 3, a connecting frame 7 fixedly connected to one side of the movable block 6, a cylinder 8 mounted on the connecting frame 7, a limit plate 10 fixedly connected to the output end of the cylinder 8, a limit groove 9 formed on the connecting frame 7, and the limit plate 10 slidably connected inside the limit groove 9. A rack 11 is fixedly connected to one side of the limiting plate 10. Gears 12 are meshed on both sides of the rack 11. A connecting shaft 13 is fixedly connected to the bottom of both sets of gears 12. A limiting ring 14 is fixedly connected to one end of the connecting shaft 13. A connecting ring 15 is fixedly connected to the limiting ring 14. A clamping plate 16 is fixedly connected to the connecting ring 15. An anti-slip pad 17 is fixedly connected to one side of the clamping plate 16. Through holes are opened on both the clamping plate 16 and the anti-slip pad 17. An insertion hole is opened on one set of clamping plates 16. A positioning rod 18 is fixedly connected to one side of one set of clamping plates 16. A rubber pad 19 is fixedly connected to one side of the positioning rod 18. The positioning rod 18 is movably connected inside the insertion hole. A fan 20 is fixedly connected to the upper surface of the support platform 1. Tires endure various deformations, loads, forces, and extreme temperatures during driving. To ensure tire safety, leak detection is necessary during tire production. This paper proposes a tire leak detection mechanism. In practical use, the tire to be tested is placed between two sets of clamps 16. The cylinder 8 is activated, pulling the limiting plate 10 and rack 11 towards the support frame 3. This causes the rack 11 to drive the gears 12 on both sides to rotate synchronously. This, in turn, drives the limiting ring 14, connecting ring 15, and clamps 16 to rotate via the connecting shaft 13, thus reducing the space between the two sets of clamps 16. This allows the positioning rod 18 and rubber pad 19 to enter the insertion hole, fixing the positions of the two sets of clamps 16 and the anti-slip pad 17. Simultaneously, the cylinder 8 is deactivated, fixing the position of the rack 11, which then engages with the positioning rod 18 and rubber pad 19. The tire is fixed in place, and the through holes on the anti-slip mat 17 and clamp 16 reduce the contact area between the mechanism and the tire, thereby improving the accuracy of the test. The drive motor 5 is started, which drives the bidirectional threaded rod 4 to rotate. Since the thread on the bidirectional threaded rod 4 matches the internal thread of the moving block 6, the height of the moving block 6 can be adjusted. This causes the connecting frame 7 to descend, allowing the tire to enter the water tank 2. After the test is completed, the drive motor 5 rotates in the opposite direction, which drives the bidirectional threaded rod 4 to rotate in the opposite direction. This causes the moving block 6 to move the tire out of the water tank 2. The cylinder 8 is started to push the rack 11 to the outside of the connecting frame 7, which drives the gears 12 on both sides to rotate in the opposite direction. This causes the rubber pad 19 and the positioning rod 18 to move out of the insertion hole, which can release the connection on one side of the two sets of clamps 16. The tested tire can then be removed from the test mechanism.
[0018] Please see Figure 1-5 As shown, the output end of the fan 20 is fixedly connected to an air supply pipe 21, the inner wall of the air supply pipe 21 is fixedly connected to an elastic sheet 22, the inner wall of the air supply pipe 21 is hinged to a baffle 23, one end of the elastic sheet 22 is fixedly connected to one side of the baffle 23, one end of the air supply pipe 21 is fixedly connected to an anti-slip ring 24, a reinforcing ring 25 is fixedly connected to the anti-slip ring 24, a bolt 26 is threadedly connected to the reinforcing ring 25, and one end of the bolt 26 is fixedly connected to a pressure plate 27. During tire production, the internal gas of the tire is not saturated. Therefore, when the tire enters the water tank 2, the insufficient internal gas can easily affect the test results. To perform a leak test on the tire, one end of the air supply pipe 21 is connected to the tire inflation pipe, so that the inflation pipe is located inside the anti-skid ring 24, which increases the friction between the inflation pipe and the surface of the inflation pipe. Then, the bolt 26 is screwed into the reinforcing ring 25, and rotating the bolt 26 causes the pressure plate 27 to squeeze one side of the reinforcing ring 25, thereby reducing the size of the reinforcing ring 25 and improving the tightness of the connection between the air supply pipe 21 and the tire inflation pipe. This prevents the test results from being incorrect due to gaps in the connection when the tire is tested in the water tank 2. After the blower 20 stops running, the impact force on the baffle 23 disappears. Under the action of the internal gas of the tire and the elastic plate 22, multiple sets of baffles 23 are pressed together, thereby sealing the air supply pipe 21, preventing gas backflow, and thus improving the accuracy of the test results.
[0019] Working principle: Connect one end of the air supply pipe 21 to the tire inflation pipe, so that the inflation pipe is located inside the anti-skid ring 24. Screw the bolt 26 into the reinforcing ring 25, and rotate the bolt 26 to cause the pressure plate 27 to squeeze one side of the reinforcing ring 25, thereby reducing the ring size of the reinforcing ring 25 and improving the tightness of the connection between the air supply pipe 21 and the tire inflation pipe. Place the tire to be tested between the two sets of clamps 16. Start the cylinder 8 to pull the limiting plate 10 and the rack 11 toward the support frame 3, so that the rack 11 drives the gears 12 on both sides to rotate synchronously. Subsequently, through the connecting shaft 13, the limiting ring 14, the connecting ring 15 and the clamps 16 rotate, so that the positioning rod 18 and the rubber pad 19 enter the insertion hole. Close the cylinder 8 to fix the position of the rack 11, thereby connecting with the tire inflation pipe 24. The positioning rod 18 and the rubber pad 19 work together to fix the tire. The drive motor 5 is started, which drives the bidirectional threaded rod 4 to rotate, thereby adjusting the height of the moving block 6. This causes the connecting frame 7 to descend, allowing the tire to enter the water tank 2. After the test is completed, the drive motor 5 rotates in the opposite direction, which drives the bidirectional threaded rod 4 to rotate in the opposite direction, thereby moving the tire out of the water tank 2 via the moving block 6. Then, the bolt 26 is unscrewed, which separates the air supply pipe 21 and the inflation pipe. The cylinder 8 is started to push the rack 11 outward of the connecting frame 7, which drives the gears 12 on both sides to rotate in the opposite direction, causing the rubber pad 19 and the positioning rod 18 to move out of the insertion hole. This disconnects the connection to one side of the two sets of clamps 16, allowing the tested tire to be removed from the testing mechanism.
[0020] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0021] 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. A tire deflation detection mechanism characterized by: include: A support platform (1) is fixedly connected to a water tank (2) at its bottom. A support frame (3) is fixedly connected to the upper surface of the support platform (1). A drive motor (5) is installed on the top of the support frame (3). A bidirectional threaded rod (4) is fixedly connected to the output end of the drive motor (5). The two ends of the bidirectional threaded rod (4) are rotatably connected to the inside of the support frame (3) and the support platform (1), respectively. A moving block (6) is threadedly connected to the bidirectional threaded rod (4). The moving block (6) is located inside the support frame (3). A connecting frame (7) is fixedly connected to one side of the moving block (6). A cylinder (8) is installed on the connecting frame (7). A limit plate (10) is fixedly connected to the output end of the cylinder (8). A limit groove (9) is opened on the connecting frame (7). The limit plate (10) is slidably connected inside the limit groove (9). A rack (11) is fixedly connected to one side of the limit plate (10). Gears (12) are meshed on both sides of the rack (11).
2. A tire air leak detection mechanism according to claim 1, characterized by: Both sets of gears (12) are fixedly connected to a connecting shaft (13) at the bottom. A limit ring (14) is fixedly connected to one end of the connecting shaft (13). A connecting ring (15) is fixedly connected to the limit ring (14). A clamping plate (16) is fixedly connected to the connecting ring (15).
3. A tire pressure loss detection mechanism according to claim 2, characterized by: An anti-slip pad (17) is fixedly connected to one side of the clamp (16). Both the clamp (16) and the anti-slip pad (17) have through holes. A set of clamps (16) has insertion holes. A positioning rod (18) is fixedly connected to one side of the clamp (16).
4. The tire leak detection mechanism according to claim 3, characterized in that: A rubber pad (19) is fixedly connected to one side of the positioning rod (18), the positioning rod (18) is movably connected to the inside of the insertion hole, and a fan (20) is fixedly connected to the upper surface of the support platform (1).
5. A tire pressure loss detection mechanism according to claim 4, characterized by: The output end of the fan (20) is fixedly connected to an air supply pipe (21), and an elastic sheet (22) is fixedly connected to the inner wall of the air supply pipe (21). A baffle (23) is hinged to the inner wall of the air supply pipe (21), and one end of the elastic sheet (22) is fixedly connected to one side of the baffle (23).
6. A tire pressure loss detection mechanism according to claim 5, characterized by: An anti-slip ring (24) is fixedly connected to the outer surface of one end of the gas pipe (21). A reinforcing ring (25) is fixedly connected to the anti-slip ring (24). A bolt (26) is threaded onto the reinforcing ring (25). A pressure plate (27) is fixedly connected to one end of the bolt (26).