High-strength automobile inner tube

Abstract

The utility model belongs to the technical field of automobile inner tubes, and particularly relates to a high-strength automobile inner tube which comprises an inner tube base layer and a reinforcing layer, the reinforcing layer is fixedly connected to the surface of the inner tube base layer, an impact-resistant layer is fixedly connected to the surface of the reinforcing layer, and a high-temperature-resistant layer is fixedly connected to the surface of the impact-resistant layer. The surface of the high-temperature-resistant layer is fixedly connected with a tear-resistant layer, and the surface of the tear-resistant layer is fixedly connected with an anti-puncture layer; the valve core cover is arranged above the anti-puncture layer, an inserting groove is formed in the bottom face of the valve core cover, a valve core body fixed to the anti-puncture layer is inserted into the inserting groove, a plurality of sliding grooves are formed in the valve core cover, and the sliding grooves communicate with an inner cavity of the valve core body; according to the utility model, the problem that a user cannot quickly take down the sealing cover from the valve core to inflate or detect the air pressure of the inner tube is solved, and the problem that potential safety hazards possibly occur in the long-time use process of the automobile inner tube due to low use strength of the automobile inner tube is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile inner tubes, in particular to a high-strength automobile inner tube. Background Art

[0002] The inner tube is a component of a car tire that is used to maintain the tire's air pressure and support the weight of the vehicle. It is located inside the tire, usually made of rubber material, and fits tightly with the outer tire. The main function of the inner tube is to ensure that the air pressure inside the tire is stable, thereby providing a smooth driving experience and a comfortable ride.

[0003] For example, a Chinese patent with publication number CN220500401U discloses a car inner tube with a shock-absorbing function, including a car inner tube, the car inner tube includes a rubber carcass, an inflation port is fixedly connected to one side of the rubber carcass, an inflation cavity is arranged inside the rubber carcass, a buffer mechanism is arranged inside the inflation cavity, the buffer mechanism includes a rubber inner ring, an inner hole is arranged inside the rubber inner ring, a plurality of buffer sheets are fixedly connected to the middle of the inner hole, and a spring rubber column is fixedly connected to the middle of the end away from the outermost buffer sheet. The car inner tube with a shock-absorbing function described in the utility model can convert the lateral force received by the buffer sheet into a lateral force through the spring rubber column, and can greatly reduce and disperse the force by changing the force direction, so that the force points of the car inner tube can be more uniform, thereby effectively reducing the fatigue strength of the car inner tube, which is beneficial to practical use.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when used, such as: the valve core on the automobile inner tube and the sealing cover of the valve core are fixed by threads, which makes it difficult for users to quickly remove the sealing cover from the valve core to inflate or detect the air pressure of the inner tube, and the use strength of the automobile inner tube is low, which may cause safety hazards during long-term use. In view of this, we propose a high-strength automobile inner tube. Summary of the invention

[0006] The utility model aims to provide a high-strength automobile inner tube to solve the problems raised in the above-mentioned background technology.

[0007] In view of this, the utility model provides a high-strength automobile inner tube, comprising:

[0008] An inner tube base layer and a reinforcing layer, wherein the reinforcing layer is fixedly connected to the surface of the inner tube base layer, the surface of the reinforcing layer is fixedly connected to an impact-resistant layer, the surface of the impact-resistant layer is fixedly connected to a high-temperature-resistant layer, the surface of the high-temperature-resistant layer is fixedly connected to a tear-resistant layer, and the surface of the tear-resistant layer is fixedly connected to an anti-puncture layer;

[0009] A valve core cover, wherein the valve core cover is arranged above the puncture-proof layer, a slot is provided on the bottom surface of the valve core cover, a valve core body fixed to the puncture-proof layer is inserted into the slot, a plurality of slide grooves are provided in the valve core cover, and the plurality of slide grooves are communicated with the inner cavity of the valve core body, a plurality of plug blocks are slidably connected in the plurality of slide grooves, and one end of the plurality of plug blocks extends to the inner wall of the valve core body and is plugged and matched with the valve core body;

[0010] A driving assembly is located in the valve core cover and is used to drive the multiple plug blocks to move.

[0011] Based on the above structure, by setting the valve core cover, slot and valve core body, it is ensured that the valve core cover can be sleeved on the valve core body through the slot to seal the valve core body, by setting the slide groove and plug block, it is ensured that the plug block can slide in the slide groove, and by setting the driving assembly, it is ensured that the user can drive multiple plug blocks to move through the driving assembly, so that multiple plug blocks are inserted into the inner wall of the valve core body to fix the valve core cover on the valve core body and cannot move, or when the valve core cover is fixed on the valve core body and cannot move, the user can drive multiple plug blocks to release the fixation of the valve core cover through the driving assembly, and the oil resistance, physical and mechanical properties and air tightness of the automobile inner tube are increased by the setting reinforcement layer, the impact resistance of the automobile inner tube is increased by the setting impact-resistant layer, the high temperature resistance of the automobile inner tube is increased by the setting high temperature resistant layer, the tear resistance of the automobile inner tube is increased by the setting tear-resistant layer, and the puncture resistance of the automobile inner tube is increased by the setting anti-puncture layer.

[0012] In the above technical solution, further, the driving component includes:

[0013] A first rotating groove, which is provided in the valve core cover and communicates with a plurality of slide grooves, a rotating disk is rotatably connected in the first rotating groove, a plurality of first extrusion grooves are provided on the rotating disk, and a first transmission block fixed to the insert block is slidably connected in the first extrusion groove;

[0014] A second rotating groove, the second rotating groove is opened on the top surface of the valve core cover and is connected to the first rotating groove, a sliding rod is slidably connected in the second rotating groove, a through groove is opened at the bottom end of the sliding rod, two second extrusion grooves are opened on the inner wall of the through groove, two second transmission blocks are slidably connected in the two second extrusion grooves respectively, and a transmission rod is fixedly connected between the two second transmission blocks, the bottom end of the transmission rod extends into the first rotating groove and is fixed to the turntable, and a return spring fixed to the inner wall of the second rotating groove is fixedly connected to the bottom surface of the sliding rod.

[0015] In this technical solution, it is ensured that the user can quickly remove the valve core cover from one end of the valve core body.

[0016] In the above technical solution, further, the second extrusion groove is arranged obliquely, and the bottom end of the transmission rod is rotatably connected to the first rotation groove.

[0017] In this technical solution, it is ensured that when the sliding rod slides, the sliding rod will squeeze the two second transmission blocks respectively through the two second extrusion grooves, so that the two second transmission blocks can slide along the two second extrusion grooves respectively and drive one end of the transmission rod to rotate in the first rotation groove, ensuring that the bottom end of the transmission rod can rotate normally in the first rotation groove.

[0018] In the above technical solution, further, the reinforcement layer is made of nitrile rubber, and the impact-resistant layer is made of polyester fiber.

[0019] In this technical solution, the reinforcing layer can increase the oil resistance, physical and mechanical properties and air tightness of the overall device, and the impact-resistant layer can effectively absorb and disperse external impact force due to the excellent elasticity and resilience of polyester fiber, thereby increasing the impact resistance of the overall device.

[0020] In the above technical solution, further, the high temperature resistant layer is made of silicone rubber, and the tear resistant layer is made of styrene-butadiene rubber.

[0021] In this technical solution, ensuring the high temperature resistant layer can allow the overall device to maintain the stability of its physical and chemical properties in a high temperature environment, thereby increasing the high temperature resistance of the overall device; ensuring the tear resistant layer can allow the overall device to have excellent tensile and tear strength, thereby increasing the tear resistance of the overall device.

[0022] In the above technical solution, further, the anti-puncture layer is made of polypropylene fiber material, and a sealing gasket is fixedly connected to the inner wall of the slot.

[0023] In this technical solution, polypropylene fiber is known for its high strength and excellent wear resistance, ensuring that the anti-puncture layer can increase the anti-puncture performance of the overall device and ensure that the gas in the inner tube base layer will not leak through the gap between the slot and the valve core body.

[0024] The beneficial effects of the utility model are:

[0025] 1. The high-strength automobile inner tube ensures that the valve core cover can be sleeved on the valve core body through the slot to seal the valve core body through the provided valve core cover, the slot and the plug block can slide in the slot through the provided slide groove, and the provided driving assembly ensures that the user can drive multiple plug blocks to move through the driving assembly, so that the multiple plug blocks are inserted into the inner wall of the valve core body to fix the valve core cover on the valve core body so that it cannot move, or when the valve core cover is fixed on the valve core body and cannot move, the user can drive multiple plug blocks to release the fixation of the valve core cover through the driving assembly, thereby solving the problem that the user cannot quickly remove the sealing cover from the valve core for inflation or to detect the air pressure of the inner tube.

[0026] 2. The high-strength automobile inner tube has increased oil resistance, physical and mechanical properties and air tightness of the automobile inner tube through the provided reinforcement layer, increased impact resistance of the automobile inner tube through the provided impact-resistant layer, increased high temperature resistance of the automobile inner tube through the provided high temperature-resistant layer, increased tear resistance of the automobile inner tube through the provided tear-resistant layer, and increased puncture resistance of the automobile inner tube through the provided puncture-resistant layer, thereby solving the problem that the use intensity of the automobile inner tube is low, which may cause safety hazards during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a schematic cross-sectional structure diagram of the utility model as a whole;

[0029] Figure 3 This is one of the schematic diagrams of the internal structure of the valve core cover of the utility model;

[0030] Figure 4 This is the second schematic diagram of the internal structure of the valve core cover of the utility model;

[0031] Figure 5 It is a schematic diagram of the overall structure of the slide bar of the utility model.

[0032] The symbols in the figure are:

[0033] 1. Inner tube base layer; 2. Reinforcement layer; 3. Impact-resistant layer; 4. High-temperature-resistant layer; 5. Tear-resistant layer; 6. Anti-puncture layer; 7. Valve core cover; 8. Slide groove; 9. Insert block; 10. Slot; 11. Valve core body; 12. First rotating groove; 13. Turntable; 14. First extrusion groove; 15. First transmission block; 16. Second rotating groove; 17. Slide rod; 18. Second extrusion groove; 19. Second transmission block; 20. Transmission rod; 21. Reset spring; 22. Through groove. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0035] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0037] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0038] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples. Example

[0039] See also Figure 1 - Figure 5 As shown, this embodiment provides a high-strength automobile inner tube, comprising:

[0040] An inner tube base layer 1 and a reinforcing layer 2, wherein the reinforcing layer 2 is fixedly connected to the surface of the inner tube base layer 1, an impact-resistant layer 3 is fixedly connected to the surface of the reinforcing layer 2, a high-temperature-resistant layer 4 is fixedly connected to the surface of the impact-resistant layer 3, a tear-resistant layer 5 is fixedly connected to the surface of the high-temperature-resistant layer 4, and a puncture-resistant layer 6 is fixedly connected to the surface of the tear-resistant layer 5;

[0041] A valve core cover 7, the valve core cover 7 is arranged above the puncture-proof layer 6, a slot 10 is provided on the bottom surface of the valve core cover 7, a valve core body 11 fixed to the puncture-proof layer 6 is inserted into the slot 10, a plurality of slide grooves 8 are provided in the valve core cover 7, and the plurality of slide grooves 8 are communicated with the inner cavity of the valve core body 11, a plurality of plug blocks 9 are slidably connected in the plurality of slide grooves 8, and one end of the plurality of plug blocks 9 extends to the inner wall of the valve core body 11 and is plugged and matched with the valve core body 11;

[0042] The driving assembly is located in the valve core cover 7 and is used to drive the multiple insert blocks 9 to move. Example

[0043] This embodiment provides a high-strength automobile inner tube, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving assembly includes:

[0044] A first rotating groove 12, which is provided in the valve core cover 7 and communicates with the plurality of slide grooves 8, a rotating disk 13 is rotatably connected in the first rotating groove 12, a plurality of first extrusion grooves 14 are provided on the rotating disk 13, and a first transmission block 15 fixed to the insert block 9 is slidably connected in the first extrusion groove 14;

[0045] The second rotating groove 16 is provided on the top surface of the valve core cover 7 and is connected to the first rotating groove 12. A slide rod 17 is slidably connected in the second rotating groove 16. A through groove 22 is provided at the bottom end of the slide rod 17. Two second extrusion grooves 18 are provided on the inner wall of the through groove 22. Two second transmission blocks 19 are slidably connected in the two second extrusion grooves 18, respectively, and a transmission rod 20 is fixedly connected between the two second transmission blocks 19. The bottom end of the transmission rod 20 extends into the first rotating groove 12 and is fixed to the turntable 13. A return spring 21 fixed to the inner wall of the second rotating groove 16 is fixedly connected to the bottom surface of the slide rod 17.

[0046] When the user needs to inflate or detect the air pressure of the inner tube of the automobile, the user presses the slide bar 17 by hand to compress the return spring 21 and make the slide bar 17 squeeze the two second transmission blocks 19 downward through the two second extrusion grooves 18 respectively. When the two second transmission blocks 19 are squeezed downward, the two second transmission blocks 19 will slide along the two second extrusion grooves 18 respectively and drive one end of the transmission rod 20 to rotate in the first rotation groove 12. When the transmission rod 20 rotates, the transmission rod 20 drives the rotating disk 13 to rotate in the first rotation groove 12, so that the rotating disk 13 squeezes the multiple first transmission blocks 19 through the multiple first extrusion grooves 14 respectively. The plurality of first transmission blocks 15 are respectively driven by the plurality of first extrusion grooves 14 to slide in the plurality of first transmission blocks 15. When the plurality of first transmission blocks 15 slide, the plurality of first transmission blocks 15 will drive the plurality of plug-in blocks 9 to slide in the plurality of slide grooves 8, respectively, so that one end of the plurality of plug-in blocks 9 respectively enters the plurality of slide grooves 8 from the inner wall of the valve core body 11. At this time, the fixing of the valve core cover 7 is released, and then the user can pull the valve core cover 7 out of the valve core body 11, so that one end of the valve core body 11 is disengaged from the slot 10. Then the user can inflate or detect the air pressure of the automobile inner tube. After the inflation or air pressure detection is completed, the user manually removes the valve core cover 7. The user then releases the hand pressing the slide bar 17 to allow the slide bar 17 to be reset by the rebound force of the reset spring 21. When the slide bar 17 is reset, the slide bar 17 will respectively press the two second transmission blocks 19 upward through the two second extrusion grooves 18. When the two second transmission blocks 19 are pressed upward, the two second transmission blocks 19 will respectively slide in the opposite direction along the two second extrusion grooves 18 and drive one end of the transmission rod 20 to rotate in the opposite direction in the first rotation groove 12. When the transmission rod 20 rotates in the opposite direction, the transmission rod 20 will drive the turntable 1 The first rotating groove 12 rotates in the reverse direction, so that the rotating disk 13 respectively squeezes the first transmission blocks 15 in the reverse direction through the first extrusion grooves 14, so that the first transmission blocks 15 respectively slide in the reverse direction in the first extrusion grooves 14. When the first transmission blocks 15 slide in the reverse direction, the first transmission blocks 15 drive the plugging blocks 9 to slide in the reverse direction in the slide grooves 8, so that one end of the plugging blocks 9 is inserted from the slide grooves 8 into the inner wall of the valve core body 11. At this time, the valve core cover 7 is fixed on one end of the valve core body 11 and cannot be moved, so that the user can quickly remove the valve core cover 7 from one end of the valve core body 11. Example

[0047] This embodiment provides a high-strength automobile inner tube, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the second extrusion groove 18 is arranged obliquely, and the bottom end of the transmission rod 20 is rotatably connected to the first rotation groove 12.

[0048] Among them, it is ensured that when the sliding rod 17 slides, the sliding rod 17 will squeeze the two second transmission blocks 19 respectively through the two second extrusion grooves 18, so that the two second transmission blocks 19 can slide along the two second extrusion grooves 18 respectively and drive one end of the transmission rod 20 to rotate in the first rotating groove 12, ensuring that the bottom end of the transmission rod 20 can rotate normally in the first rotating groove 12. Example

[0049] This embodiment provides a high-strength automobile inner tube, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the reinforcement layer 2 is made of nitrile rubber, and the impact-resistant layer 3 is made of polyester fiber.

[0050] Among them, the reinforcing layer 2 can increase the oil resistance, physical and mechanical properties and air tightness of the overall device, and the impact-resistant layer 3 can effectively absorb and disperse external impact force due to the excellent elasticity and resilience of polyester fiber, thereby increasing the impact resistance of the overall device. Example

[0051] This embodiment provides a high-strength automobile inner tube, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the high-temperature resistant layer 4 is made of silicone rubber, and the tear-resistant layer 5 is made of styrene-butadiene rubber.

[0052] Among them, ensuring the high temperature resistant layer 4 can allow the overall device to maintain the stability of its physical and chemical properties in a high temperature environment, thereby increasing the high temperature resistance of the overall device; ensuring the tear resistant layer 5 can allow the overall device to have excellent tensile and tear strength, thereby increasing the tear resistance of the overall device. Example

[0053] This embodiment provides a high-strength automobile inner tube, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the anti-puncture layer 6 is made of polypropylene fiber, and a sealing pad is fixedly connected to the inner wall of the slot 10.

[0054] Among them, polypropylene fiber is known for its high strength and excellent wear resistance, ensuring that the anti-puncture layer 6 can increase the anti-puncture performance of the overall device and ensure that the gas in the inner tube base layer 1 will not leak through the gap between the slot 10 and the valve core body 11.

[0055] When the user needs to inflate or test the air pressure of the inner tube of the automobile, the user presses the slide bar 17 by hand to allow the slide bar 17 to compress the reset spring 21 and allow the slide bar 17 to respectively squeeze the two second transmission blocks 19 downward through the two second extrusion grooves 18. When the two second transmission blocks 19 are squeezed downward, the two second transmission blocks 19 will slide along the two second extrusion grooves 18 respectively and drive one end of the transmission rod 20 to rotate in the first rotation groove 12. When the transmission rod 20 rotates, the transmission rod 20 will drive the turntable 13 to rotate in the first rotation groove 12, allowing the turntable 13 to squeeze the multiple first transmission blocks 19 through the multiple first extrusion grooves 14. 5, so that the multiple first transmission blocks 15 slide in the multiple first extrusion grooves 14 respectively. When the multiple first transmission blocks 15 slide, the multiple first transmission blocks 15 will drive the multiple plug blocks 9 to slide in the multiple slide grooves 8 respectively, so that one end of the multiple plug blocks 9 enters the multiple slide grooves 8 respectively from the inner wall of the valve core body 11. At this time, the fixation of the valve core cover 7 is released, and then the user can pull the valve core cover 7 out of the valve core body 11, so that one end of the valve core body 11 is separated from the slot 10, and then the user can inflate or test the air pressure of the automobile inner tube. After the inflation or air pressure test is completed, the user manually replaces the valve core cover 7 The slide bar 17 is put on one end of the valve core body 11 so that one end of the valve core body 11 is inserted into the slot 10. Then the user releases the hand pressing the slide bar 17, and the slide bar 17 is reset by the rebound force of the reset spring 21. When the slide bar 17 is reset, the slide bar 17 will respectively squeeze the two second transmission blocks 19 upward through the two second extrusion grooves 18. When the two second transmission blocks 19 are squeezed upward, the two second transmission blocks 19 will respectively slide in the opposite direction along the two second extrusion grooves 18 and drive one end of the transmission rod 20 to rotate in the opposite direction in the first rotation groove 12. When the transmission rod 20 rotates in the opposite direction, the transmission rod 20 will drive the turntable 13 Rotate reversely in the first rotating groove 12, so that the turntable 13 reversely extrude the multiple first transmission blocks 15 through the multiple first extrusion grooves 14, so that the multiple first transmission blocks 15 slide reversely in the multiple first extrusion grooves 14 respectively. When the multiple first transmission blocks 15 slide reversely, the multiple first transmission blocks 15 will drive the multiple plug-in blocks 9 to slide reversely in the multiple slide grooves 8 respectively, so that one end of the multiple plug-in blocks 9 is inserted from the multiple slide grooves 8 to the inner wall of the valve core body 11. At this time, the valve core cover 7 is fixed on one end of the valve core body 11 and cannot move, ensuring that the user can quickly remove the valve core cover 7 from one end of the valve core body 11.

[0056] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A high-strength automobile inner tube, characterized in that: include: An inner tube base layer (1) and a reinforcing layer (2), wherein the reinforcing layer (2) is fixedly connected to the surface of the inner tube base layer (1), an impact-resistant layer (3) is fixedly connected to the surface of the reinforcing layer (2), a high-temperature-resistant layer (4) is fixedly connected to the surface of the impact-resistant layer (3), a tear-resistant layer (5) is fixedly connected to the surface of the high-temperature-resistant layer (4), and a puncture-resistant layer (6) is fixedly connected to the surface of the tear-resistant layer (5); A valve core cover (7), wherein the valve core cover (7) is arranged above the puncture-proof layer (6), a slot (10) is provided on the bottom surface of the valve core cover (7), a valve core body (11) fixed to the puncture-proof layer (6) is inserted into the slot (10), a plurality of slide grooves (8) are provided in the valve core cover (7), and the plurality of slide grooves (8) are connected to the inner cavity of the valve core body (11), a plurality of plug blocks (9) are slidably connected in the plurality of slide grooves (8), and one end of the plurality of plug blocks (9) extends to the inner wall of the valve core body (11) and is plugged into the valve core body (11); A drive assembly is located in the valve core cover (7) and is used to drive the plurality of insert blocks (9) to move.

2. A high-strength automobile inner tube according to claim 1, characterized in that: The drive assembly comprises: a first rotating groove (12), the first rotating groove (12) being formed in the valve core cover (7) and being connected to the plurality of slide grooves (8), a rotating disk (13) being rotatably connected in the first rotating groove (12), a plurality of first extrusion grooves (14) being formed on the rotating disk (13), a first transmission block (15) being slidably connected in the first extrusion groove (14) and being fixed to the insert block (9); A second rotating groove (16), wherein the second rotating groove (16) is provided on the top surface of the valve core cover (7) and is connected to the first rotating groove (12), a slide rod (17) is slidably connected in the second rotating groove (16), a through groove (22) is provided at the bottom end of the slide rod (17), two second extrusion grooves (18) are provided on the inner wall of the through groove (22), two second transmission blocks (19) are slidably connected in the two second extrusion grooves (18), respectively, and a transmission rod (20) is fixedly connected between the two second transmission blocks (19), the bottom end of the transmission rod (20) extends into the first rotating groove (12) and is fixed to the rotating disk (13), and a return spring (21) fixed to the inner wall of the second rotating groove (16) is fixedly connected to the bottom surface of the slide rod (17).

3. A high-strength automobile inner tube according to claim 2, characterized in that: The second extrusion groove (18) is arranged in an inclined manner, and the bottom end of the transmission rod (20) is rotatably connected to the first rotation groove (12).

4. A high-strength automobile inner tube according to claim 1, characterized in that: The reinforcing layer (2) is made of nitrile rubber, and the impact-resistant layer (3) is made of polyester fiber.

5. A high-strength automobile inner tube according to claim 1, characterized in that: The high temperature resistant layer (4) is made of silicone rubber, and the tear resistant layer (5) is made of styrene-butadiene rubber.

6. A high-strength automobile inner tube according to claim 1, characterized in that: The puncture-proof layer (6) is made of polypropylene fiber material, and a sealing pad is fixedly connected to the inner wall of the slot (10).

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