A self-repairing tire strength testing device

Abstract

The present invention belongs to the technical field of self-repairing tire strength detection, specifically, a self-repairing tire strength detection device, comprising a detection belt mechanism, a support frame is arranged at one side of the end of the detection belt mechanism, a movable frame is arranged below the support frame, the lower end of the movable frame is rotatably connected with a rotating roller for placing the tire, the end of the rotating roller is screwed with a screw connection plate, the upper end of the movable frame is fixedly connected with a pressure sensor, the upper end of the pressure sensor is fixedly connected with the lower end of the hydraulic cylinder, the detection belt mechanism comprises a frame, one side of the end of the frame is fixedly connected with the support frame, two groups of transmission shafts are rotatably installed in the frame, two groups of sprockets are symmetrically fixedly mounted on the two groups of transmission shafts, and a plurality of groups of chain plates are driven to make circular motion so that the rotation speed of the tire can meet the speed of the simulated car driving state. Such a design can miniaturize the volume of the entire device, which not only greatly reduces the space occupied by the device, but also facilitates the movement and transportation of the device by the staff, thereby improving the practicability of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of self-repairing tire strength detection, in particular to a self-repairing tire strength detection device. Background Art

[0002] Self-repairing tires are a type of technical tire that has a special sealing material built into it. It can automatically seal small holes after a puncture, thereby maintaining the normal inflation state of the tire and avoiding the need to replace the tire immediately. Self-repairing tires do require a series of rigorous quality control tests during the research and development and production process, including puncture strength testing. The puncture strength test ensures that the tire can effectively seal the hole when punctured by a foreign object, while also ensuring the integrity and safety of the tire structure.

[0003] The patent with publication number CN219675653U discloses a vehicle tire strength testing device, including a support frame, a drive clamping assembly, and a detection belt assembly. The support frame is fixedly mounted on the detection belt assembly, a movable groove is provided on the top of the support frame, and the drive clamping assembly is installed in the movable groove. By driving the clamping assembly, not only the tire to be tested can be fixed, but also the tire can be moved along the detection belt assembly. During the movement of the tire, a certain downward pressure is applied to the tire, and the automobile tire is punctured by the detection column on the detection belt assembly, thereby realizing the strength detection of the tire by the detection belt assembly.

[0004] In the above scheme, by making the tire move on the detection belt assembly and be punctured by the detection column, the problem of the tire being punctured while moving on the road is simulated, thereby improving the authenticity of the tire puncture strength detection. However, the car has a certain speed when driving. In order to achieve the actual car driving speed, the tire must be given a certain acceleration distance on the detection belt assembly, which results in a longer stroke of the driving clamping assembly and the detection belt assembly. The entire device will be relatively large in size and occupy a large space, which not only increases the cost of tire detection, but also is not conducive to the movement of the device by the staff, reducing the practicability of the device. For this reason, the present invention provides a self-repairing tire strength detection device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A self-repairing tire strength detection device described in the present invention includes a detection belt mechanism. One side of the end of the detection belt mechanism is provided with a support frame. A movable frame is arranged below the support frame. The lower end of the movable frame is rotatably connected to a rotating roller for placing a tire. A screwing disc is screwed at the end of the rotating roller. The upper end of the movable frame is fixedly connected to a pressure sensor. The upper end of the pressure sensor is fixedly connected to the lower end of a hydraulic cylinder. The detection belt mechanism includes a frame. One side of the end of the frame is fixedly connected to the support frame. Two groups of transmission shafts rotatably installed in the frame. Two groups of sprockets are symmetrically and fixedly sleeved on the two groups of transmission shafts. A chain meshes with the two groups of sprockets. A number of groups of chain plates are distributed around the outer circle of the chain. The chain plates are fixedly connected to the chain. Three groups of chain plates are each provided with a puncturing mechanism. Both ends of the support plate are respectively rotatably connected to the two groups of transmission shafts. The support plate is fixedly connected to the end of a cylinder. The puncturing mechanism includes a housing. The housing is fixedly installed on the chain plate. A movable seat is movably installed in the housing. One end of the housing is inserted with a C-shaped frame. A spring is arranged in the C-shaped frame. One end of the C-shaped frame is rotatably installed with a roller. The roller is closely attached to the support plate. A receiving shaft is arranged in the middle of the movable seat. Oblique grooves are arranged on both sides of the C-shaped frame. Both ends of the receiving shaft are respectively located in the two groups of oblique grooves. Three groups of puncturing columns are arranged on the oblique grooves. The three groups of puncturing columns are respectively located in three groups of avoidance holes opened on the housing.

[0007] By driving a number of groups of chain plates to perform circular motion, the rotation speed of the tire can meet the speed under the simulated driving state of the vehicle. Such a design can miniaturize the volume of the entire device, not only greatly reducing the space occupied by the device, but also facilitating the staff to move and carry the device, improving the practicability of the device.

[0008] Preferably, two groups of through holes are symmetrically opened at the upper end of the support frame. The through holes are slidably connected to guide columns. The lower ends of the guide columns are fixedly connected to the movable frame. Four corners of the movable seat are each fixedly connected with a guide sleeve. The guide sleeve is movably inserted with a sliding rod. One end of the sliding rod is fixedly connected to the inner wall of the housing.

[0009] Specifically, the movable frame drives the two groups of guide columns to slide along the two groups of through holes on the support frame, playing a guiding role in the movement of the movable frame. When the above-mentioned receiving shaft drives the movable seat together with the three groups of puncturing columns to move upward, the movable seat drives the four groups of guide sleeves to slide along the four groups of sliding rods respectively, playing a guiding role in the movement of the movable seat and the puncturing columns.

[0010] Preferably, convex platform plates are arranged on both sides inside the frame. Convex shafts are arranged at both ends of the chain plate. A shaft sleeve is rotatably sleeved on the convex shaft. The shaft sleeve is in rolling connection with the outer circle of the convex platform plate.

[0011] The chain plate drives the shaft sleeve to roll along the outer circle of the convex platform plate through the convex shaft. When the tire presses down on the chain plate, the convex platform plate plays a supporting role for the shaft sleeve, ensuring that a number of groups of chain plates can stably perform circular motion.

[0012] Preferably, the movable seat includes a seat body, three groups of puncture columns are fixedly installed on the seat body, two groups of clamps are symmetrically arranged in the seat body, a U-shaped spring piece is placed at one end of the clamp, a rectangular shaft is fixedly connected to one end of the clamp, the rectangular shaft passes through the U-shaped spring piece, the clamp is slidably connected to the inner cavity of the seat body, the receiving shaft is located between the other ends of the two groups of clamps, two groups of grooves are opened on the other end surface of the clamp, the grooves are used to clamp the receiving shaft, limit blocks are fixedly installed on both sides of the shell body, the limit blocks are used to block the rectangular shaft, the left and right ends of the shell body are opened with a first rectangular groove, the rectangular shaft is movably inserted into the first rectangular groove, the front and rear ends of the shell body are opened with a second rectangular groove, and the receiving shaft passes through the two groups of second rectangular grooves;

[0013] A set of puncture mechanisms just moves to the bottom of the tire. At this time, the three sets of puncture columns on the puncture mechanism will be blocked by the tire and cannot move upward. The receiving shaft will squeeze the two sets of groove walls at the lower end of the other end of the two sets of clamps, so that the two sets of clamps move backward along the inner cavity of the seat body. The U-shaped spring piece is further compressed by the clamp. When the sharp end of the puncture column extends to the outside of the avoidance hole, the receiving shaft is stuck between the two sets of grooves at the upper end of the other end of the two sets of clamps under the action of the rebound force of the U-shaped spring piece, so as to prevent the puncture column from actively puncturing the tire and affecting the accuracy of tire detection.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. By driving several groups of chain plates to make circular motion, the rotation speed of the tire can meet the speed of simulating the driving state of the car. This design can miniaturize the size of the entire device, which not only greatly reduces the space occupied by the device, but also facilitates the movement and transportation of the device by the staff, thereby improving the practicality of the device.

[0016] 2. When several groups of chain plates make circular motion, the chain plates are brought to the sleeves through the convex shafts and roll along the outer ring of the boss plates. When the tire presses down on the chain plates, the boss plates support the sleeves to ensure that several groups of chain plates can make stable circular motions.

[0017] 3. When the connecting shaft drives the movable seat together with the three sets of puncturing posts to move upward, if the chain plates corresponding to the three sets of puncturing mechanisms are not located under the tire, the connecting shaft uses the clamping force of the two sets of clamping plates to move the seat body and the two sets of rectangular shafts upward, so that the seat body drives the sharp ends of the three sets of puncturing posts to extend to the outside of the avoidance holes, and at the same time, the ends of the two sets of rectangular shafts are respectively attached to the two sets of limit blocks. When the puncturing posts puncture the tire, the puncturing posts are subjected to downward pressure. Since the two sets of rectangular shafts are blocked by the two sets of limit blocks and cannot move, the two sets of clamping plates in the seat body cannot be separated, so that the puncturing posts puncture the tire, thereby achieving the above-mentioned During the strength test of the tire, if a set of puncture mechanisms happens to move to the bottom of the tire, the three sets of puncture columns on the puncture mechanism will be blocked by the tire and unable to move upward, and the receiving shaft will squeeze the two sets of groove walls at the bottom of the other end of the two sets of clamps, causing the two sets of clamps to move backwards along the inner cavity of the seat body, and the U-shaped spring sheet is further compressed by the clamp. When the sharp end of the puncture column extends to the outside of the avoidance hole, the receiving shaft is stuck between the two sets of grooves at the top of the other end of the two sets of clamps under the action of the rebound force of the U-shaped spring sheet, preventing the puncture column from actively puncturing the tire and affecting the accuracy of tire detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic cross-sectional view of the frame, transmission shaft, sprocket, chain, chain plate and piercing mechanism assembly of the present invention.

[0021] Figure 3 It is a schematic diagram of the transmission shaft, sprocket, chain, chain plate, puncturing mechanism, support plate and cylinder assembly of the present invention.

[0022] Figure 4 It is a cross-sectional schematic diagram of the chain plate and the puncturing mechanism combination of the present invention.

[0023] Figure 5 It is a schematic diagram of the combination of the frame and the chain plate of the present invention.

[0024] Figure 6 It is a cross-sectional schematic diagram of the housing, piercing column, movable seat, receiving shaft and guide sleeve assembly of the present invention.

[0025] Figure 7 It is a schematic diagram of the combination of the movable seat and the supporting shaft of the present invention.

[0026] In the figure: 1. Detection belt mechanism; 2. Support frame; 201. Through hole; 202. Guide post; 3. Movable frame; 4. Rotating roller; 5. Screwed disc; 6. Tire; 7. Pressure sensor; 8. Hydraulic cylinder; 101. Frame; 1011. Convex platform plate; 102. Transmission shaft; 103. Sprocket; 104. Chain; 105. Chain plate; 1051. Convex shaft; 1052. Bush; 106. Piercing mechanism; 107. Support plate; 108. Cylinder; 1061. Housing; 61. Guide sleeve; 62. Slide bar; 611. Avoidance hole; 612. Limit block; 1062. Movable seat; 1063. Piercing column; 1064. C-shaped frame; 64. Oblique groove; 1065. Spring; 1066. Roller; 1067. Bearing shaft; 641. Seat body; 41. First rectangular groove; 42. Second rectangular groove; 642. Clamping plate; 643. U-shaped elastic piece; 644. Rectangular shaft; 645. Groove. Detailed implementation mode

[0027] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation modes. Embodiment

[0028] Such as Figures 1 to 4As shown, a self-repairing tire strength detection device described in an embodiment of the present invention includes a detection belt mechanism 1, a support frame 2 is provided on one side of the end of the detection belt mechanism 1, a movable frame 3 is provided below the support frame 2, a rotating roller 4 for placing a tire 6 is rotatably connected to the lower end of the movable frame 3, a screw plate 5 is screwed on the end of the rotating roller 4, a pressure sensor 7 is fixedly connected to the upper end of the movable frame 3, and the upper end of the pressure sensor 7 is fixedly connected to the lower end of the hydraulic cylinder 8. The detection belt mechanism 1 includes a frame 101, one side of the end of the frame 101 is fixedly connected to the support frame 2, two groups of transmission shafts 102 are rotatably installed in the frame 101, two groups of sprockets 103 are symmetrically fixedly mounted on the two groups of transmission shafts 102, a chain 104 meshes with the two groups of sprockets 103, a plurality of groups of chain plates 105 are distributed around the outer ring of the chain 104, the chain plates 105 are fixedly connected to the chain 104, and the three groups of chain plates 105 are all provided with thorns The piercing mechanism 106, the two ends of the support plate 107 are respectively rotatably connected to the two sets of transmission shafts 102, the support plate 107 is fixedly connected to the end of the cylinder 108, the piercing mechanism 106 includes a shell 1061, the shell 1061 is fixedly installed on the chain plate 105, a movable seat 1062 is movably installed in the shell 1061, one end of the shell 1061 is plugged into a shaped frame 1064, a spring 1065 is arranged in the shaped frame 1064, and the shaped frame 1064 is provided with a spring 1065. A roller 1066 is rotatably installed at one end of 64, and the roller 1066 is close to the support plate 107. A receiving shaft 1067 is arranged in the middle of the movable seat 1062. Oblique grooves 64 are arranged on both sides of the shaped frame 1064. Both ends of the receiving shaft 1067 are respectively located in two groups of oblique grooves 64. Three groups of piercing columns 1063 are arranged on the oblique grooves 64. The three groups of piercing columns 1063 are respectively located in three groups of avoidance holes 611 opened on the shell 1061.

[0029] Specifically, a plurality of groups of chain plates 105 are distributed around the outer ring of the chain 104, and most of the chain plates 105 are in a fitted state. In the initial state, the puncture column 1063 is completely retracted into the avoidance hole 611. When the tire 6 needs to be tested for strength, the tire 6 to be tested is firstly mounted on the rotating roller 4, and then the tire 6 is fixed by screwing the screw plate 5 to the end of the rotating roller 4, and then the hydraulic cylinder 8 is started. The hydraulic cylinder 8 pushes the pressure sensor 7, the movable frame 3, the rotating roller 4, and the tire 6 to be tested to move downward together, so that the tire 6 to be tested squeezes the chain plate 105 below, and the chain plate 105 gives the tire 6 a reverse thrust acting on the pressure sensor 7, the downward pressure on the tire 6 can be obtained in real time through the pressure sensor 7, a certain pressure is applied to the tire 6, and then a group of transmission shafts 102 are driven by the motor to rotate, and the transmission shaft 102 can rotate clockwise or counterclockwise. One group of transmission shafts 102 drives the corresponding two groups of sprockets 103 to rotate, so that the two groups of chains 104 perform circular motion around the corresponding two groups of sprockets 103. At the same time, a plurality of groups of chain plates 105 also perform circular motion with the two groups of chains 104, and a plurality of groups of chain plates 105 drive the tire 6 to be tested to rotate, so that the rotation speed of the tire 6 to be tested quickly reaches the speed of the car. In this process, the three groups of puncture mechanisms 106 rotate with the corresponding The chain plate 105 makes a circular motion, and the roller 1066 on the piercing mechanism 106 rolls against one side of the support plate 107, and then the cylinder 108 pushes the support plate 107 to move toward the support frame 2, and then the support plate 107 squeezes the roller 1066 to move the profile frame 1064 toward the inside of the shell 1061, and the profile frame 1064 compresses the spring 1065, and at the same time, both ends of the receiving shaft 1067 slide along the two groups of oblique grooves 64 on the profile frame 1064, and under the guidance of the oblique grooves 64, the receiving shaft 1067 drives the movable seat 1062 together with the three groups of piercing columns 1063 to move upward, so that the sharp ends of the piercing columns 1063 extend to the avoidance holes On the outside of 611, the puncturing column 1063 makes a circular motion with the chain plate 105, and the puncturing column 1063 will pierce the tire 6 in a rotating state. The tire pressure sensor installed inside the tire 6 can detect the internal air pressure of the tire 6 after the puncturing column 1063 punctures the tire 6, thereby realizing the strength detection of the tire 6. Compared with the prior art, by driving several groups of chain plates 105 to make a circular motion, the rotation speed of the tire 6 can meet the speed of the simulated car driving state. Such a design can miniaturize the size of the entire device, which not only greatly reduces the space occupied by the device, but also facilitates the staff to move and carry the device, thereby improving the practicability of the device.

[0030] Furthermore, two groups of through holes 201 are symmetrically opened at the upper end of the support frame 2, the through holes 201 are slidably connected to the guide pillars 202, the lower ends of the guide pillars 202 are fixedly connected to the movable frame 3, and the four corners of the movable seat 1062 are fixedly connected to the guide sleeves 61, the guide sleeves 61 are movably inserted into the sliding rod 62, and one end of the sliding rod 62 is fixedly connected to the inner wall of the shell 1061.

[0031] Specifically, when the movable frame 3 moves downward, the movable frame 3 drives the two groups of guide pillars 202 to slide along the two groups of through holes 201 on the support frame 2, thereby guiding the movement of the movable frame 3. When the supporting shaft 1067 drives the movable seat 1062 together with the three groups of puncture pillars 1063 to move upward, the movable seat 1062 drives the four groups of guide sleeves 61 to slide along the four groups of slide rods 62 respectively, thereby guiding the movement of the movable seat 1062 and the puncture pillars 1063.

[0032] like Figure 5 As shown, boss plates 1011 are provided on both sides of the frame 101, and convex shafts 1051 are provided at both ends of the chain plate 105. A shaft sleeve 1052 is rotatably mounted on the convex shaft 1051, and the shaft sleeve 1052 is rollingly connected to the outer ring of the boss plate 1011.

[0033] Specifically, during the circular motion of the above-mentioned several groups of chain plates 105, the chain plates 105 are brought to the sleeves 1052 through the convex shaft 1051 and roll along the outer circle of the boss plate 1011. When the tire 6 presses down on the chain plates 105, the boss plate 1011 supports the sleeves 1052, ensuring that the several groups of chain plates 105 can stably perform circular motion. Example

[0034] like Figure 6 and Figure 7 As shown, in contrast to Example 1, another embodiment of the present invention is as follows: the movable seat 1062 includes a seat body 641, three groups of puncture columns 1063 are fixedly mounted on the seat body 641, two groups of clamps 642 are symmetrically arranged in the seat body 641, one end of the clamp 642 is provided with a U-shaped spring piece 643, a rectangular shaft 644 is fixedly connected to one end of the clamp 642, the rectangular shaft 644 passes through the U-shaped spring piece 643, the clamp 642 is slidably connected to the inner cavity of the seat body 641, and the receiving shaft 1067 is located between the two groups of clamps 64 2, two groups of grooves 645 are formed on the other end surface of the clamping plate 642, and the grooves 645 are used to clamp the receiving shaft 1067. Limit blocks 612 are fixedly installed on both sides of the shell 1061, and the limit blocks 612 are used to block the rectangular shaft 644. The left and right ends of the shell 1061 are formed with first rectangular grooves 41, and the rectangular shaft 644 is movably inserted into the first rectangular grooves 41. The front and rear ends of the shell 1061 are formed with second rectangular grooves 42, and the receiving shaft 1067 passes through the two groups of second rectangular grooves 42.

[0035] Specifically, the elasticity of the spring 1065 is much stronger than that of the U-shaped spring piece 643. In the process of extending the puncture column 1063 to the outside of the avoidance hole 611, several groups of chain plates 105 are in a circular motion state. If the chain plate 105 corresponding to the puncture column 1063 moves just below the tire 6 to be tested at the moment when the puncture column 1063 extends to the outside of the avoidance hole 611, the puncture column 1063 will actively puncture the tire 6 to be tested through external force, which not only affects the accuracy of the detection, but also causes a tire 6 to be scrapped. In the initial state, the U-shaped spring piece 643 is in a compressed state, and the receiving shaft 1067 is located between the other ends of the two groups of clamping plates 642, and the receiving shaft 1067 is located between the other ends of the two groups of clamping plates 642. The connecting shaft 1067 is clamped between the two groups of grooves 645 at the lower part of the other ends of the two groups of clamping plates 642. Therefore, when the above-mentioned connecting shaft 1067 drives the movable seat 1062 and the three groups of puncturing columns 1063 to move upward, if the chain plates 105 corresponding to the three groups of puncturing mechanisms 106 are not located below the tire 6, the connecting shaft 1067 uses the clamping force of the two groups of clamping plates 642 to move the seat body 641 and the two groups of rectangular shafts 644 upward, so that the seat body 641 drives the sharp ends of the three groups of puncturing columns 1063 to extend to the outside of the avoidance hole 611, and at the same time, the ends of the two groups of rectangular shafts 644 are respectively attached to the two groups of limit blocks 612. When the puncturing columns 1063 puncture the tire 6, the puncturing columns 1063 are restrained. When the downward pressure is applied, the two sets of rectangular shafts 644 are blocked by the two sets of limit blocks 612 and cannot move, and the two sets of clamping plates 642 in the seat body 641 cannot be separated, so that the puncturing column 1063 punctures the tire 6, thereby realizing the above-mentioned strength detection of the tire 6. If one set of puncturing mechanisms 106 is moved just below the tire 6, the three sets of puncturing columns 1063 on the puncturing mechanism 106 will be blocked by the tire 6 and cannot move upward, and the receiving shaft 1067 will squeeze the two sets of groove walls 645 at the other ends of the two sets of clamping plates 642, so that the two sets of clamping plates 642 move backward along the inner cavity of the seat body 641, and the U-shaped spring piece 643 is further compressed by the clamping plate 642. When the sharp end of the puncture column 1063 extends to the outside of the avoidance hole 611, under the action of the rebound force of the U-shaped spring piece 643, the receiving shaft 1067 is stuck between the two groups of grooves 645 at the top of the other end of the two groups of clamps 642, so as to prevent the puncture column 1063 from actively puncturing the tire 6 and affecting the accuracy of the detection of the tire 6. Secondly, when the puncture column 1063 retracts into the avoidance hole 611, since the seat body 641 is blocked by the bottom of the shell 1061 and cannot move, the receiving shaft 1067 can break free from the restraint of the two groups of grooves 645 at the top of the other end of the two groups of clamps 642, so that the receiving shaft 1067 returns to between the two groups of grooves 645 at the bottom of the other end of the two groups of clamps 642 again.

[0036] Working principle: first, the tire 6 to be tested is set on the rotating roller 4, and then the tire 6 is fixed by screwing the screw plate 5 to the end of the rotating roller 4, and then the hydraulic cylinder 8 is started. The hydraulic cylinder 8 pushes the pressure sensor 7, the movable frame 3, the rotating roller 4, and the tire 6 to be tested to move downward together, so that the tire 6 to be tested squeezes the chain plate 105 below. The chain plate 105 gives the tire 6 a reverse thrust to act on the pressure sensor 7. The pressure sensor 7 can obtain the downward pressure on the tire 6 in real time, give the tire 6 a certain pressure, and then drive a group of transmission shafts 102 to rotate through the motor. The transmission shaft 102 can rotate clockwise or counterclockwise. A group of transmission shafts 102 drives the corresponding two groups of sprockets 103 to rotate, so that the two groups of chains 104 perform circular motion around the corresponding two groups of sprockets 103. At the same time, several groups of chain plates 105 also perform circular motion with the two groups of chains 104, and several groups of chain plates 105 drive the tire 6 to be tested to rotate, so that the rotation speed of the tire 6 to be tested quickly reaches the speed of the car. In this process In the embodiment, the three groups of piercing mechanisms 106 make circular motions with the corresponding chain plates 105, and the roller 1066 on the piercing mechanism 106 rolls against one side of the support plate 107, and then the support plate 107 is pushed toward the support frame 2 by the cylinder 108, and then the support plate 107 squeezes the roller 1066 to move the profile frame 1064 toward the inside of the shell 1061, and the profile frame 1064 compresses the spring 1065, and at the same time, the two ends of the receiving shaft 1067 are moved along the two groups of oblique grooves 6 on the profile frame 1064. 4 slides, under the guidance of the oblique groove 64, the receiving shaft 1067 drives the movable seat 1062 and the three sets of puncturing posts 1063 to move upward, so that the sharp ends of the puncturing posts 1063 extend to the outside of the avoidance hole 611, and the puncturing posts 1063 make a circular motion along with the chain plate 105. The puncturing posts 1063 will pierce the rotating tire 6. The tire pressure sensor installed inside the tire 6 can detect the internal air pressure of the tire 6 after the puncturing posts 1063 puncture the tire 6, thereby realizing the strength detection of the tire 6;

[0037] During the process of the supporting shaft 1067 driving the movable seat 1062 and the three sets of puncturing columns 1063 to move upward, if the chain plates 105 corresponding to the three sets of puncturing mechanisms 106 are not located below the tire 6, the supporting shaft 1067 uses the clamping force of the two sets of clamping plates 642 to move the seat body 641 and the two sets of rectangular shafts 644 upward, so that the seat body 641 drives the sharp ends of the three sets of puncturing columns 1063 to extend to the outside of the avoidance hole 611, and at the same time, the ends of the two sets of rectangular shafts 644 are respectively attached to the two sets of limit blocks 612. When the puncturing columns 1063 puncture the tire 6, the puncturing columns 1063 are subjected to downward pressure. Since the two sets of rectangular shafts 644 are blocked by the two sets of limit blocks 612 and cannot move, the two sets of clamping plates 642 in the seat body 641 cannot be separated, and the puncturing is achieved. The puncturing column 1063 punctures the tire 6, thereby realizing the above-mentioned strength test of the tire 6. If one set of puncturing mechanisms 106 happens to move to the bottom of the tire 6, the three sets of puncturing columns 1063 on the puncturing mechanism 106 will be blocked by the tire 6 and cannot move upward, and the receiving shaft 1067 will squeeze the two sets of groove walls 645 at the bottom of the other ends of the two sets of clamps 642, so that the two sets of clamps 642 move backwards along the inner cavity of the seat body 641, and the U-shaped spring piece 643 is further compressed by the clamp 642. When the sharp end of the puncturing column 1063 extends to the outside of the avoidance hole 611, under the action of the rebound force of the U-shaped spring piece 643, the receiving shaft 1067 is stuck between the two sets of grooves 645 at the top of the other ends of the two sets of clamps 642.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A self-repairing tire strength detection device, comprising a detection belt mechanism (1), characterized in that: A support frame (2) is provided at one end of the detection belt mechanism (1), a movable frame (3) is provided below the support frame (2), a rotating roller (4) for placing a tire (6) is rotatably connected to the lower end of the movable frame (3), a screw connection plate (5) is screwed to the end of the rotating roller (4), the upper end of the movable frame (3) is fixedly connected to a pressure sensor (7), and the upper end of the pressure sensor (7) is fixedly connected to the lower end of a hydraulic cylinder (8); The detection belt mechanism (1) comprises: A frame (101), wherein one end of the frame (101) is fixedly connected to a support frame (2); Two sets of transmission shafts (102) rotatably mounted in the frame (101); Two sets of sprocket wheels (103) are symmetrically fixedly mounted on the two sets of transmission shafts (102); Two sets of chains (104), the chains (104) meshing with two sets of sprockets (103); A plurality of groups of chain plates (105) are distributed around the outer ring of the chain (104), and the chain plates (105) are fixedly connected to the chain (104); The three groups of chain plates (105) are all provided with a piercing mechanism (106); A support plate (107), wherein two ends of the support plate (107) are rotatably connected to the two sets of transmission shafts (102) respectively, and the support plate (107) is fixedly connected to the end of the cylinder (108); The piercing mechanism (106) comprises a housing (1061), the housing (1061) is fixedly mounted on the chain plate (105), a movable seat (1062) is movably mounted in the housing (1061), one end of the housing (1061) is plugged into a shaped frame (1064), a spring (1065) is arranged in the shaped frame (1064), and a roller (1066) is rotatably mounted on one end of the shaped frame (1064), and the roller (1066) is closely attached to the support plate (107); A receiving shaft (1067) is disposed in the middle of the movable seat (1062), oblique grooves (64) are disposed on both sides of the shaped frame (1064), both ends of the receiving shaft (1067) are respectively located in two groups of oblique grooves (64), and three groups of piercing columns (1063) are respectively located in three groups of avoidance holes (611) opened on the shell (1061); The movable seat (1062) comprises: A seat body (641), three sets of piercing posts (1063) are fixedly mounted on the seat body (641); Two groups of clamping plates (642) are symmetrically arranged in the seat body (641); A U-shaped spring piece (643) is placed at one end of the clamping plate (642); A rectangular shaft (644) fixedly connected to one end of the clamping plate (642), wherein the rectangular shaft (644) passes through the U-shaped spring piece (643); The cylinder (108) pushes the support plate (107) to move toward the support frame (2), and then the support plate (107) moves the profile frame (1064) toward the inside of the shell (1061) through the extrusion roller (1066), and the profile frame (1064) compresses the spring (1065), and at the same time, the two ends of the receiving shaft (1067) slide along the two groups of inclined grooves (64) on the profile frame (1064), and under the guidance of the inclined grooves (64), the receiving shaft (1067) drives the movable seat (1062) together with the three groups of piercing columns (1063) to move upward, so that the sharp end of the piercing column (1063) extends to the outside of the avoidance hole (611).

2. A self-repairing tire strength detection device according to claim 1, characterized in that: Two groups of through holes (201) are symmetrically formed at the upper end of the support frame (2); the through holes (201) are slidably connected to guide pillars (202); and the lower ends of the guide pillars (202) are fixedly connected to the movable frame (3).

3. A self-repairing tire strength detection device according to claim 2, characterized in that: The four corners of the movable seat (1062) are fixedly connected to guide sleeves (61), the guide sleeve (61) is movably inserted into a sliding rod (62), and one end of the sliding rod (62) is fixedly connected to the inner wall of the housing (1061).

4. The self-repairing tire strength detection device according to claim 3, characterized in that: Boss plates (1011) are provided on both sides of the frame (101), convex shafts (1051) are provided at both ends of the chain plate (105), a shaft sleeve (1052) is rotatably sleeved on the convex shaft (1051), and the shaft sleeve (1052) is rollingly connected to the outer ring of the boss plate (1011).

5. The self-repairing tire strength detection device according to claim 1, characterized in that: The clamping plates (642) are slidably connected to the inner cavity of the seat body (641), and the receiving shaft (1067) is located between the other ends of the two sets of clamping plates (642).

6. The self-repairing tire strength detection device according to claim 5, characterized in that: Two groups of grooves (645) are formed on the other end surface of the clamping plate (642), and the grooves (645) are used to clamp the receiving shaft (1067).

7. The self-repairing tire strength detection device according to claim 6, characterized in that: Limit blocks (612) are fixedly installed on both sides of the housing (1061), and the limit blocks (612) are used to block the rectangular shaft (644).

8. The self-repairing tire strength detection device according to claim 7, characterized in that: The left and right ends of the housing (1061) are each provided with a first rectangular groove (41), and the rectangular shaft (644) is movably plugged into the first rectangular groove (41).

9. The self-repairing tire strength detection device according to claim 8, characterized in that: The housing (1061) is provided with second rectangular grooves (42) at both the front and rear ends, and the receiving shaft (1067) passes through two groups of second rectangular grooves (42).

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