A tire leak detection device for vehicle maintenance

Abstract

The application relates to the technical field of automobile maintenance, in particular to a tire leak point detection device for automobile maintenance, which comprises a base and side plates, the side plates are arranged in two and fixedly installed on the base, the ends, away from the base, of the two side plates are fixedly provided with a top plate; a taking and placing mechanism is installed on the two side plates, the taking and placing mechanism power output end is slidably connected with the two side plates, the lower side of the taking and placing mechanism is fixedly connected with a driving mechanism, the driving mechanism power output end is fixedly connected with a dismounting mechanism; a pressing mechanism is fixedly installed on the two side plates; a detection mechanism is arranged on the base, and detection liquid can be added into the detection mechanism. The taking and placing mechanism is used for automatically lifting and positioning the tire; the driving mechanism drives the tire to intermittently rotate, the pressing mechanism is used for intermittently pressing the two sides of the tire, the gas at the leak point can be rapidly gathered and escaped, and the detection liquid in the detection mechanism is used, so that an efficient and reliable leak point detection solution is provided for the automobile maintenance scene.

Description

Technical Field

[0001] This invention relates to the field of automotive repair technology, and in particular to a tire leak detection device for automotive repair. Background Technology

[0002] As a key component in contact with the ground, tires' sealing performance directly affects driving safety, fuel economy, and ride comfort. If tire leaks are not detected in time, they can lead to abnormal tire pressure drops, causing serious accidents such as vehicle swerving, tire overheating, or even tire blowouts. This poses a significant threat to the lives of drivers and passengers, especially at high speeds or in complex road conditions. Therefore, rapid and accurate tire leak detection is a crucial part of automotive maintenance, playing a vital role in ensuring safe vehicle operation and reducing maintenance costs.

[0003] Current tire leak detection technologies mostly rely on manual visual inspection or water immersion methods. Manual visual inspection depends on the operator's experience, is prone to missing tiny leaks, and is inefficient. Traditional water immersion methods require the tire to be completely submerged in the testing fluid, which is cumbersome, and the tire needs to be dried after inspection, making it unsuitable for rapid repair needs. Some semi-automatic testing devices lack integrated loading, unloading, rotating, and squeezing mechanisms, requiring manual assistance in loading, unloading, and adjusting the tire position, leading to interruptions in the testing process and preventing automated testing. Furthermore, the leak location accuracy is greatly affected by manual operation, making it difficult to meet the efficiency and accuracy requirements of automotive repair scenarios. Summary of the Invention

[0004] The purpose of this invention is to provide a tire leak detection device for automobile repair, which aims to solve the problems of low detection efficiency, reliance on manual operation, and insufficient leak location accuracy in the prior art.

[0005] This invention is implemented as follows: a tire leak detection device for automotive repair includes: a base and two side plates, two of which are fixedly mounted on the base, and a top plate fixedly mounted on one end of each side plate away from the base; a pick-and-place mechanism mounted on the two side plates, with its power output end slidably connected to the two side plates, a drive mechanism fixedly connected to the lower side of the pick-and-place mechanism, and a disassembly / installation mechanism fixedly connected to the power output end of the drive mechanism; a tire can be installed onto the device through the disassembly / installation mechanism, and the power output end of the drive mechanism is used to drive the tire to rotate intermittently; two compression mechanisms fixedly mounted on the two side plates, the drive mechanism moving downwards can engage its two ends with the power input end of the compression mechanism, for intermittent compression of both sides of the tire; and a detection mechanism mounted on the base, into which detection fluid can be added; the pick-and-place mechanism can drive the tire on the disassembly / installation mechanism to move downwards and partially place it into the detection mechanism, the detection mechanism being used to detect tire leaks.

[0006] Preferably, the picking and placing mechanism includes a protective cover, a first power component, a driving gear, a lead screw, a driven gear, a partition, a crossbar, threaded blocks, push-pull rods, and a lifting plate. The protective cover is fixedly installed on one side plate, the first power component is fixedly installed on one side plate, the output shaft of the first power component is fixedly connected to the driving gear, the two ends of the lead screw are rotatably connected to the two side plates, the end of the lead screw is fixed with a driven gear that meshes with the driving gear, the middle of the lead screw is fixedly installed with a partition, the threads of the lead screw on both sides of the partition are opposite, the two ends of the crossbar are fixedly connected to the two side plates, a threaded block that is threadedly connected to the lead screw is sleeved on the crossbar, the threaded blocks are distributed on both sides of the partition, the two threaded blocks can approach or move away from each other along the crossbar under the rotation of the lead screw, two push-pull rods are provided, one end of which is hinged to the threaded block, the other end of the two push-pull rods is hinged to the lifting plate, the two sides of the lifting plate are slidably connected to the two side plates.

[0007] Preferably, the drive mechanism includes a protective box, a second power component, a partial gear, a first complete gear, and a linkage assembly. The protective box is fixedly installed in the middle of the lifting plate, the second power component is fixedly installed inside the protective box, the output shaft of the second power component is fixedly connected to the partial gear, the first complete gear is rotatably installed inside the protective box and located below the partial gear, the partial gear and the first complete gear intermittently mesh, the shaft of the first complete gear extends outside the protective box, the disassembly and assembly mechanism is fixedly connected to the shaft of the first complete gear, the linkage assembly is installed on the lifting plate, the power input end of the linkage assembly intermittently meshes with the partial gear, and the power output end can mesh with the power input end of the extrusion mechanism.

[0008] Preferably, the linkage assembly includes a second complete gear, a first bevel gear, a stabilizing sleeve, a linkage rod, and a third bevel gear. The second complete gear is rotatably mounted inside the protective box and positioned above the local gear. The second complete gear intermittently meshes with the local gear. The second complete gear is coaxially connected to the first bevel gear. Multiple stabilizing sleeves are fixedly mounted on the lifting plate. Linkage rods are rotatably mounted inside the multiple stabilizing sleeves. One end of the linkage rod is positioned inside the protective box and fixedly connected to a second bevel gear that meshes with the first bevel gear. The third bevel gear is fixedly connected to the other end of the linkage rod. The power input end of the extrusion mechanism can mesh with the third bevel gear.

[0009] Preferably, the disassembly and assembly mechanism includes a turntable, positioning posts, and a negative pressure machine. The turntable is fixedly connected to the shaft of the first complete gear. Positioning posts are fixedly installed on the turntable. Multiple positioning posts are provided. The car tire can be fitted onto the positioning posts. The negative pressure machine is fixedly installed on the turntable and is used to adsorb the car tire to ensure the stability of the car tire rotation.

[0010] Preferably, the extrusion mechanism includes a support box, a shaft, a fourth bevel gear, a cam, a connecting rod, a pressure plate, a return spring, and an arc-shaped plate. The support box is fixedly mounted on a side plate. A shaft is rotatably mounted on the support box. A fourth bevel gear is fixed at the upper end of the shaft. A third bevel gear can move downwards to mesh with the fourth bevel gear. A cam is fixed to one side of the shaft inside the support box. The connecting rod is slidably mounted on the support box. One end of the connecting rod is located inside the support box and is fixed with a pressure plate that slides in contact with the cam. A return spring is fixed between the pressure plate and the inner wall of the support box to push the pressure plate to move to the left and reset. The arc-shaped plate is fixedly connected to one end of the connecting rod outside the support box for extruding the automobile tire.

[0011] Preferably, the detection mechanism includes a detection box, a limiting plate, a drain pipe, and a valve. The detection box is mounted on a base and contains detection fluid. When the tire is squeezed, its leakage point can generate bubbles in the detection fluid. A limiting plate for limiting the tire is fixedly mounted on the detection box. The drain pipe is connected to the lower side of the detection box and a valve for controlling its opening and closing is connected to the drain pipe.

[0012] Beneficial effects: This invention achieves automated lifting and positioning of tires through a pick-and-place mechanism, eliminating the need for manual loading and unloading and effectively reducing labor intensity; the drive mechanism causes the tire to rotate intermittently, which, combined with the extrusion mechanism's intermittent extrusion of both sides of the tire, allows gas at the leak point to quickly accumulate and escape. Combined with the detection fluid in the detection mechanism, it enables visual and accurate location of the leak point; the linkage component synchronously transmits the power of the drive mechanism to the extrusion mechanism, achieving coordination between rotation and extrusion actions, avoiding detection interruptions and significantly improving detection efficiency; the overall structure has a high degree of integration, can adapt to the detection needs of tires of different sizes, requires no manual intervention during the detection process, and has a high accuracy rate in leak point identification, providing an efficient and reliable leak point detection solution for automotive repair scenarios. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the tire leak detection device for automotive repair.

[0014] Figure 2 This is a schematic diagram of the interior of the protective box of a tire leak detection device used in automotive repair.

[0015] Figure 3 This is a schematic diagram of the disassembly and assembly mechanism of a tire leak detection device for automobile repair.

[0016] Figure 4 This is a schematic diagram of the extrusion mechanism of a tire leak detection device used in automotive repair.

[0017] In the attached diagram: 1-Base, 2-Side plate, 3-Top plate, 4-Pick-up mechanism, 5-Drive mechanism, 6-Disassembly / Assembly mechanism, 7-Extrusion mechanism, 8-Detection mechanism, 41-Protective cover, 42-First power component, 43-Drive gear, 44-Screw, 45-Driven gear, 46-Partition plate, 47-Crossbar, 48-Threaded block, 49-Push-pull rod, 410-Lifting plate, 51-Protective box, 52-Second power component, 53-Partial gear, 54-First complete gear, 55- Linkage components: 551-Second complete gear, 552-First bevel gear, 553-Stabilizing sleeve, 554-Linkage rod, 555-Second bevel gear, 556-Third bevel gear, 61-Turntable, 62-Positioning column, 63-Negative pressure unit, 71-Support box, 72-Shaft, 73-Fourth bevel gear, 74-Cam, 75-Connecting rod, 76-Pressure plate, 77-Reset spring, 78-Arc plate, 81-Detection box, 82-Limit plate, 83-Drain pipe, 84-Valve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

[0019] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0020] Please see Figure 1 This invention provides a tire leak detection device for automotive repair, comprising a base 1, side plates 2, a top plate 3, a pick-and-place mechanism 4, a drive mechanism 5, a disassembly and assembly mechanism 6, a compression mechanism 7, and a detection mechanism 8. Two side plates 2 are provided and fixedly installed on the base 1, with a top plate 3 fixedly installed at the end of each side plate 2 away from the base 1. The base 1 provides basic support for the device; the two side plates 2, fixedly installed on the base 1, provide vertical support; the top plate 3, fixedly installed at the end of each side plate 2 away from the base 1, forms a frame structure with the side plates 2, enhancing overall stability.

[0021] The base 1 provides basic support for the entire device. The two side plates 2 are fixedly installed on the base 1 to form a vertical support structure. The top plate 3 is fixed to the top of the two side plates 2 and together with the side plates 2, it forms a stable frame, providing an installation carrier and structural stability for other mechanisms (such as the picking and placing mechanism 4 and the squeezing mechanism 7).

[0022] like Figure 1As shown, the pick-and-place mechanism 4 is installed on two side plates 2 and includes a protective cover 41, a first power component 42, a drive gear 43, a lead screw 44, a driven gear 45, a partition 46, a crossbar 47, a threaded block 48, a push-pull rod 49, and a lifting plate 410. The protective cover 41 is fixedly installed on a side plate 2. The first power component 42 is fixedly installed on a side plate 2. The output shaft of the first power component 42 is fixedly connected to the drive gear 43. The two ends of the lead screw 44 are rotatably connected to the two side plates 2. The end of the lead screw 44 is fixed with a driven gear 45 that meshes with the drive gear 43. A partition plate 46 is fixedly installed in the middle of the lead screw 44. The threads of the lead screw 44 on both sides of the partition plate 46 are opposite. The two ends of the crossbar 47 are fixedly connected to the two side plates 2. A threaded block 48 that is threadedly connected to the lead screw 44 is sleeved on the crossbar 47. The threaded blocks 48 are distributed on both sides of the partition plate 46. There are two push-pull rods 49, one end of which is hinged to the threaded block 48. The other end of the two push-pull rods 49 is hinged to a lifting plate 410. The two sides of the lifting plate 410 are slidably connected to the two side plates 2. A protective cover 41 is fixedly installed on a side plate 2 to protect internal components; a first power component 42 is fixed on a side plate 2, and its output shaft is fixedly connected to a drive gear 43 to provide power for the picking and placing mechanism; a lead screw 44 is rotatably connected to two side plates 2 at both ends, and a driven gear 45 that meshes with the drive gear 43 is fixed at the end; a partition 46 is fixedly installed in the middle of the lead screw 44, and the threads of the lead screw 44 on both sides of the partition 46 are opposite; a crossbar 47 is fixedly connected to two side plates 2 at both ends and serves as a guide; a threaded block 48 that is threadedly connected to the lead screw 44 is sleeved on the crossbar 47, and the threaded blocks 48 are distributed on both sides of the partition 46. When the lead screw 44 rotates, it drives the threaded blocks 48 on both sides to approach or move away from each other along the crossbar 47; two push-pull rods 49 are provided, one end of which is hinged to the threaded block 48, and the other end is hinged to the lifting plate 410. The movement of the threaded block 48 pushes the lifting plate 410 to slide along the side plate 2 through the push-pull rods 49, thereby realizing the lifting and lowering of the tire.

[0023] The protective cover 41 protects the internal transmission components. After the first power component 42 is started, it drives the drive gear 43 to rotate. The drive gear 43 meshes with the driven gear 45 to drive the lead screw 44 to rotate. The partition plate 46 in the middle of the lead screw 44 separates the threads on both sides into opposite directions of rotation, so that the two threaded blocks 48 on the crossbar 47 move closer to each other along the crossbar 47 when the lead screw 44 rotates. The lifting plate 410 is pushed down along the side plate 2 by the push-pull rod 49 to realize the lowering and loading of the tire. Conversely, when the threaded blocks 48 move away from each other, the lifting plate 410 rises and resets.

[0024] like Figure 1 and Figure 2As shown, the drive mechanism 5 is fixedly connected to the lower side of the pick-and-place mechanism 4, and includes a protective box 51, a second power component 52, a partial gear 53, a first complete gear 54, and a linkage assembly 55. The protective box 51 is fixedly installed in the middle of the lifting plate 410, the second power component 52 is fixedly installed inside the protective box 51, and the output shaft of the second power component 52 is fixedly connected to the partial gear 53; the first complete gear 54 is rotatably installed inside the protective box 51 and located below the partial gear 53, the partial gear 53 and the first complete gear 54 intermittently mesh, and the shaft of the first complete gear 54 extends to the outside of the protective box 51; the linkage assembly 55 is installed on the lifting plate 410 and includes a second complete gear 551, a first bevel gear 552, a stabilizing sleeve 553, and a linkage component 55. The moving rod 554 and the third bevel gear 556, the second complete gear 551 are rotatably installed in the protective box 51 and located on the upper side of the partial gear 53. The second complete gear 551 and the partial gear 53 are intermittently meshed. The second complete gear 551 is coaxially connected to the first bevel gear 552. The stabilizing sleeve 553 is fixedly installed on the lifting plate 410. The linkage rod 554 is rotatably installed in the stabilizing sleeve 553. One end of the linkage rod 554 is fixed with the second bevel gear 555 that meshes with the first bevel gear 552, and the other end is fixedly connected to the third bevel gear 556. The protective box 51 is fixedly installed in the middle of the lifting plate 410 to protect the internal drive components; the second power component 52 is fixedly installed inside the protective box 51, and its output shaft is fixedly connected to the local gear 53 to drive the local gear 53 to rotate stably; the first complete gear 54 is rotatably installed inside the protective box 51 and located below the local gear 53, the local gear 53 and the first complete gear 54 are intermittently meshed, and the shaft of the first complete gear 54 extends outside the protective box 51 to drive the disassembly and assembly mechanism to rotate; the linkage component 55 is installed on the lifting plate 410, the second complete gear 551 is rotatably installed inside the protective box 51 and located above the local gear 53, and is intermittently meshed with the local gear 53, the second complete gear 551 is coaxially connected to the first bevel gear 552; the stabilizing sleeve 553 is fixedly installed on the lifting plate 410, the linkage rod 554 is rotatably arranged inside the stabilizing sleeve 553, one end of the linkage rod 554 is fixed with the second bevel gear 555 that meshes with the first bevel gear 552, and the other end is fixedly connected to the third bevel gear 556 to transmit power to the extrusion mechanism 7.

[0025] The second power component 52 inside the protective box 51 drives the partial gear 53 to rotate. When the partial gear 53 meshes with the first complete gear 54, it drives the first complete gear 54 shaft and disassembly mechanism to rotate, realizing the intermittent rotation of the tire. When the partial gear 53 meshes with the second complete gear 551, the first bevel gear 552 meshes with the second bevel gear 555, driving the linkage rod 554 inside the stabilizing sleeve 553 to rotate. The third bevel gear 556 at the other end of the linkage rod 554 transmits power to the extrusion mechanism 7, realizing the coordination of rotation and extrusion actions.

[0026] like Figure 3As shown, the disassembly and assembly mechanism 6 is fixedly connected to the rotating shaft of the first complete gear 54, and includes a turntable 61, positioning posts 62, and a negative pressure unit 63. The turntable 61 is fixedly connected to the rotating shaft of the first complete gear 54, and the positioning posts 62 are fixedly mounted on the turntable 61 for mounting the tire; the negative pressure unit 63 is fixedly mounted on the turntable 61 for adsorbing the tire to ensure stable rotation. The turntable 61 is fixedly connected to the rotating shaft of the first complete gear 54 and rotates with the first complete gear 54; multiple positioning posts 62 are fixedly mounted on the turntable 61, and the car tire can be mounted onto the positioning posts 62 for initial positioning; the negative pressure unit 63 is fixedly mounted on the turntable 61 for adsorbing the car tire, ensuring the stability of the tire as it rotates with the turntable 61.

[0027] The tire is initially positioned by the positioning pin 62 on the turntable 61. The negative pressure machine 63 is started to generate suction force to fix the tire and prevent it from shifting during rotation. When the first complete gear 54 drives the turntable 61 to rotate, the positioning pin 62 and the negative pressure machine 63 work together to ensure that the tire rotates synchronously and intermittently with the turntable 61, thereby realizing circumferential leak detection.

[0028] like Figure 4 As shown, the extrusion mechanism 7 has two components, which are fixedly mounted on two side plates 2. It includes a support box 71, a shaft 72, a fourth bevel gear 73, a cam 74, a connecting rod 75, a pressure plate 76, a return spring 77, and an arc-shaped plate 78. The support box 71 is fixedly mounted on the side plate 2. The shaft 72 is rotatably mounted on the support box 71. The upper end of the shaft 72 is fixed with the fourth bevel gear 73. The third bevel gear 556 can move downwards to mesh with the fourth bevel gear 73. The cam 74 is fixed to one side of the shaft 72 inside the support box 71. The connecting rod 75 is slidably mounted on the support box 71. One end of the connecting rod 75 is fixed with a pressure plate 76 that slides in contact with the cam 74. A return spring 77 is fixed between the pressure plate 76 and the inner wall of the support box 71. The other end is fixedly connected to the arc-shaped plate 78. The support box 71 is fixedly installed on the side plate 2, providing a mounting base for the extrusion mechanism; the shaft 72 is rotatably mounted on the support box 71, and a fourth bevel gear 73 is fixed at the upper end of the shaft 72. The third bevel gear 556 can move downwards to mesh with the fourth bevel gear 73; a cam 74 is fixed on one side of the shaft 72 inside the support box 71; the connecting rod 75 is slidably mounted on the support box 71, with one end of the connecting rod 75 located inside the support box 71 and fixed with a pressure plate 76 that slides in contact with the cam 74. A return spring 77 is fixed between the pressure plate 76 and the inner wall of the support box 71 to push the pressure plate 76 to move to the left to reset; the other end of the connecting rod 75 is located outside the support box 71 and is fixedly connected to an arc plate 78. The cam 74 rotates to push the pressure plate 76 and drive the connecting rod 75 to move, so that the arc plate 78 intermittently extrudes the two sides of the tire.

[0029] After the third bevel gear 556 meshes with the fourth bevel gear 73, the power drives the cam 74 to rotate through the shaft 72. The cam 74 pushes the pressure plate 76 to compress the return spring 77. The connecting rod 75 drives the arc plate 78 to move closer to the tire and squeeze both sides. The cam 74 continues to rotate, the return spring 77 pushes the pressure plate 76 to reset, and the connecting rod 75 drives the arc plate 78 to retract, realizing intermittent squeezing of both sides of the tire and promoting the escape of leaking gas.

[0030] like Figure 1 As shown, the detection mechanism 8 is mounted on the base 1 and includes a detection box 81, a limiting plate 82, a drain pipe 83, and a valve 84. The detection box 81 stores detection fluid, and the limiting plate 82 is fixedly mounted on the detection box 81. The drain pipe 83 is connected to the lower side of the detection box 81, and the valve 84 is connected to the drain pipe 83. The detection box 81 is mounted on the base 1 and can be filled with detection fluid; a portion of a tire can be placed inside the detection box 81. The limiting plate 82 is fixedly mounted on the detection box 81 to limit the tire placed inside and prevent it from shifting. The drain pipe 83 is connected to the lower side of the detection box 81, and the valve 84 is connected to the drain pipe 83. The valve 84 controls the opening and closing of the drain pipe 83 to facilitate the discharge of used detection fluid.

[0031] The test chamber 81 is filled with test fluid. The pick-and-place mechanism drives the tire to descend and partially immerse it in the test fluid. The limiting plate 82 limits the tire to prevent it from deviating. When the tire rotates and is squeezed in the test fluid, the gas escaping from the leak point forms bubbles in the test fluid, thus completing the leak detection. After the test is completed, the valve 84 is opened and the test fluid is discharged from the test chamber 81 through the drain pipe 83.

[0032] Working principle: During testing, the tire is fitted onto the positioning post 62, and the negative pressure machine 63 is started to adsorb and fix the tire; the first power component 42 of the pick-and-place mechanism 4 is started, the driving gear 43 drives the driven gear 45 to rotate, the lead screw 44 rotates to make the threaded blocks 48 on both sides move closer to each other along the cross bar 47, the push-pull rod 49 pushes the lifting plate 410 to slide down along the side plate 2, and drives the tire down to be partially immersed in the test liquid in the test box 81. At the same time, the third bevel gear 556 and the fourth bevel gear 73 mesh. The second power component 52 of the drive mechanism 5 is activated. Specifically, the second power component 52 is a motor, which controls the stable rotation of the local gear 53. When the local gear 53 meshes with the first complete gear 54, it drives the turntable 61 and the tire to rotate at a certain angle. When the local gear 53 meshes with the second complete gear 551, it drives the linkage rod 554 to rotate via the first bevel gear 552 and the second bevel gear 555. Since the third bevel gear 556 meshes with the fourth bevel gear 73, it drives the shaft 72 and the cam 74 to rotate. The cam 74 pushes the pressure plate 76 to compress the return spring 77. The connecting rod 75 drives the arc plate 78 to approach the tire and press against both sides of the tire until the tire leak point is submerged in the detection fluid. After being compressed, gas escapes from the leak point, generating bubbles in the detection fluid, thus completing the leak detection. After the detection is completed, the pick-and-place mechanism 4 drives the tire to rise and reset. After multiple detections, the detection fluid gradually becomes turbid, and the valve 84 can be opened to discharge the detection fluid through the drain pipe 83.

[0033] This device automates tire loading and unloading through the loading and unloading mechanism 4. Combined with the intermittent rotation of the drive mechanism 5 and the synchronous squeezing action of the squeezing mechanism 7, it achieves comprehensive circumferential and radial tire inspection, preventing missed detections. The negative pressure unit 63, in conjunction with the positioning column 62, can quickly fix the tire. The localized wetting design of the detection fluid reduces the contact area between the tire and the detection fluid, lowering drying costs. The linkage component 55 enables power reuse, simplifying the structure while improving motion coordination. Inspection efficiency is significantly improved compared to traditional manual inspection, accelerating leak detection. It is suitable for batch tire inspection needs in scenarios such as auto repair shops and 4S stores.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tire leak detection device for automobile repair, comprising a base and side plates, characterized in that, Two side plates are provided and fixedly installed on the base, and a top plate is fixedly provided at the end of the two side plates away from the base; The pick-and-place mechanism is mounted on the two side plates. The power output end of the pick-and-place mechanism is slidably connected to the two side plates. A drive mechanism is fixedly connected to the lower side of the pick-and-place mechanism. A disassembly and assembly mechanism is fixedly connected to the power output end of the drive mechanism. The tire can be installed on the device through the disassembly and assembly mechanism. The power output end of the drive mechanism is used to drive the tire to rotate intermittently. The extrusion mechanism has two parts and is fixedly installed on the two side plates. The drive mechanism moves downward so that its two ends engage with the power input end of the extrusion mechanism, which is used to intermittently extrude the two sides of the tire. The testing mechanism is mounted on the base. Testing fluid can be added into the testing mechanism. The picking and placing mechanism can move the tire on the disassembly and assembly mechanism downwards and partially place it into the testing mechanism. The testing mechanism is used to detect tire leaks. The drive mechanism includes: A protective box is fixedly installed in the middle of the lifting plate. A second power component is fixedly installed inside the protective box. A local gear is fixedly connected to the output shaft of the second power component. The second power component is used to drive the local gear to rotate stably. The first complete gear is rotatably mounted inside the protective box and located below the partial gear. The partial gear intermittently meshes with the first complete gear. The shaft of the first complete gear extends outside the protective box. The disassembly and assembly mechanism is fixedly connected to the shaft of the first complete gear. The linkage component is mounted on the lifting plate. The power input end of the linkage component intermittently meshes with the local gear, and the power output end can mesh with the power input end of the extrusion mechanism to drive the extrusion mechanism to extrude the tire.

2. The tire leak detection device for automobile repair according to claim 1, characterized in that, The picking and placing mechanism includes: A protective cover is fixedly installed on one of the side plates. A first power component is fixedly installed on the side plate, and the output shaft of the first power component is fixedly connected to a drive gear. A lead screw is rotatably connected to two side plates at both ends. A driven gear that meshes with the driving gear is fixed at the end of the lead screw. A partition is fixedly provided in the middle of the lead screw, and the threads of the lead screw on both sides of the partition are opposite. A crossbar is fixedly connected to the two side plates at both ends. A threaded block that is threadedly connected to the lead screw is sleeved on the crossbar. The threaded blocks are distributed on both sides of the partition. The two threaded blocks can approach or move away from each other along the crossbar when the lead screw rotates. The push-pull rod has two parts, one end of which is hinged to a threaded block. The other end of the two push-pull rods is hinged to a lifting plate, and the two sides of the lifting plate are slidably connected to the two side plates.

3. The tire leak detection device for automobile repair according to claim 2, characterized in that, The linkage component includes: The second complete gear is rotatably mounted inside the protective box and positioned above the local gear. The second complete gear intermittently meshes with the local gear. The second complete gear is coaxially connected to the first bevel gear. A stabilizing sleeve is fixedly installed on the lifting plate and multiple such sleeves are provided. A linkage rod is rotatably installed inside each of the multiple stabilizing sleeves. One end of the linkage rod is located inside the protective box and is fixed with a second bevel gear that meshes with the first bevel gear. The third bevel gear is fixedly connected to the other end of the linkage rod, and the power input end of the extrusion mechanism can mesh with the third bevel gear.

4. The tire leak detection device for automobile repair according to claim 3, characterized in that, The disassembly / assembly mechanism includes: A turntable is fixedly connected to the shaft of the first complete gear. A number of positioning posts are fixedly provided on the turntable, and a car tire can be fitted onto the positioning posts. A negative pressure pump, which is fixedly installed on a turntable, is used to absorb the tires of a car to ensure the stability of the tire rotation.

5. The tire leak detection device for automobile repair according to claim 4, characterized in that, The extrusion mechanism includes: A support box is fixedly installed on a side plate. A shaft is rotatably mounted on the support box. A fourth bevel gear is fixed at the upper end of the shaft. A third bevel gear can move downward to mesh with the fourth bevel gear. A cam is fixed on one side of the shaft inside the support box. The connecting rod is slidably mounted on the support box. One end of the connecting rod is located inside the support box and is fixed with a pressure plate that slides in contact with the cam. A return spring is fixed between the pressure plate and the inner wall of the support box to push the pressure plate to move to the left and reset. The curved plate, which is fixedly connected to the connecting rod at one end outside the support box, is used to compress the car tire.

6. The tire leak detection device for automobile repair according to claim 1, characterized in that, The testing institutions include: The test chamber is mounted on the base and contains test fluid. When the tire is squeezed, any leaks in the test fluid can generate bubbles. A limiting plate for limiting the tire is fixedly mounted on the test chamber. The drain pipe is connected to the lower side of the testing box, and a valve is connected to the drain pipe to control its opening and closing.

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