41 results about "Flat tire" patented technology

This rubber composition is characterized by comprising a diene-based rubber component and a filler containing recycled carbon black, and is characterized in that: the diene-based rubber component includes a butadiene-based rubber; when the recycled carbon black is measured using a grind gauge, 3 or more lines having a length of 10 mm or more are observed; and, among particles forming the lines having a length of 10 mm or more, the particle size of particles having the third largest size is 20 µm or less.

The utility model discloses an anti-explosion double-tire wheel structure. The anti-explosion double-tire wheel structure comprises a hub, a rim, an inner tire and an outer tire, the rim and the hub are fixed on the outer edge of the hub; two tire grooves are formed in the rim through the side check rings. A group of inner tire and outer tire can be embedded in each of the two tire grooves; the outer tire comprises a tire outer wall, a tire inner wall and a tire bottom wall; the tire inner walls of the two outer tires are attached to each other; and the tire inner wall and the tire bottom wall are in small arc-shaped edge transition. According to the utility model, when a certain group of tires burst or leak air in the use process, the other group of tires can work independently, so that traffic accidents caused by the fact that a vehicle body loses balance and the direction is out of control are avoided, and maintenance can be carried out after freight driving is completed. The appearance effect and the load-bearing performance of a large-tire-width tire can be reflected, the cost is only the price of two small-tire-width tires, the explosion-proof driving is realized, the maintenance and replacement cost is low, and the favor degree of a small truck driver is high.

The application provides a tire forming drum, which comprises a main shaft, a middle ring and two half-drum devices symmetrically arranged relative to the middle ring. The half-drum device comprises an outer shaft sleeved on the main shaft, a limiting disc fixed to one end of the outer shaft close to the middle ring, a turn-up assembly, a turn-up driving assembly, a guide body matched with the turn-up assembly and a bead locking assembly located on the side of the limiting disc away from the middle ring. The tire forming drum further comprises a fixed ring body fixedly connected with the limiting disc and having a body part in the shape of a ring and an extension part extending axially from the body part towards the middle ring; and a movable ring body arranged between the extension part and the middle ring in the radial direction and axially movable, and the cooperation between the fixed ring body and the movable ring body forms an annular recess. Thus, the tire forming drum provided by the application not only can provide a flat circumferential surface extending axially, but also can form an annular recess for accommodating a rubber reinforcing member, so as to realize the forming of a tire body assembly in a run-flat tire blank in a one-step tire forming machine.

The present invention provides a puncture-proof and run-flat tire with a spare tire that could be rapidly assembled and be adaptive to an tire body by finely adjusted and locked, thereby providing puncture-proof and run-flat function. The puncture-proof and run-flat tire includes an tire body having two protruding hooks on two inner edges on two sides of an inner ring of the tire body and a spare tire tightly engaged with one of the two protruding hooks of the tire body. Therefore, a vehicle could continue travelling safely if the tire body becomes flat due to damage caused by foreign objects. The spare tire includes a plurality of spare tire blocks assembled with an elastic ring, a first fine-adjustment wire, and a second fine-adjustment wire. Therefore, the spare tire could be rapidly mounted on the protruding hooks of the tire body to form the puncture-proof and run-flat tire.

The utility model relates to a kind of modularization superposition type heavy vehicle wheel auxiliary support moving mechanism of road clearing equipment technical field, including supporting wheel frame, wheel shaft and gyro wheel group, supporting wheel frame includes a group of side support, several parallel support connecting rods are fixed between two side supports, the arc-shaped support portion capable of supporting heavy vehicle wheel is formed between each support connecting rod, and it further includes at least one modularization cushion block capable of being placed on arc-shaped support portion.The utility model is matched with modularization cushion block by the supporting wheel frame of split design, can sequentially stack modularization cushion block on supporting wheel frame, so as to match the wheel of different vehicle models and its various accident states (including flat tire, no tire, no tire and no steel ring, no hub etc.), wheel can be raised according to the actual situation of wheel and its various accident states, so that each wheel of accident vehicle is at the same height, while avoiding the relative motion of wheel and supporting wheel frame, thereby greatly improving the safety, rapidity and effectiveness when wrecker clears obstacles.

The invention relates to the technical field of bicycle tires, and discloses a low-flatness bicycle tire which comprises a flat tire body, a wear-resistant ring is arranged in the flat tire body, a supporting layer is fixedly connected to the interior of the wear-resistant ring, a microcapsule is fixedly connected to the interior of the supporting layer, the outer wall of the microcapsule is fixedly connected to the inner wall of the wear-resistant ring, and the outer wall of the microcapsule is fixedly connected to the inner wall of the wear-resistant ring. An anti-puncture layer is fixedly connected to the interior of the supporting layer, microcapsules are fixedly connected to the interior of the anti-puncture layer, the outer wall of the anti-puncture layer is fixedly connected to the other side of the outer wall, and a connecting assembly is slidably connected to the interior of the flat tire. Through the cooperation between the flat tire and the micro air bag, the low flat tire has faster acceleration, better supporting performance, more sensitive control performance and faster response speed, the low flat ratio bicycle tire is more fashionable and dynamic visually, and meanwhile, through the cooperation of the air leakage prevention component, the low flat ratio bicycle tire is more convenient to use. The tire can be automatically repaired when small puncturing or cutting occurs, and the tire burst risk is reduced.

The utility model discloses a run-flat tire which comprises a plurality of groups of first supporting mechanisms which are arranged around an air chamber, one side of each first supporting mechanism corresponds to a tire tread, the other side of each first supporting mechanism is connected with a tire bead, and each first supporting mechanism comprises a movable part and a bendable part which are connected with each other; the movable part comprises a first part and a second part, the first part extends in the first direction and is located on the top face of the air chamber, and the second part extends in the radial direction and is located on the side face of the air chamber. One end of the bendable part is connected with the tire bead, and the other end is connected with the second part; the plurality of groups of first supporting mechanisms can be switched from a first state to a second state; in the first state, the bendable part is not bent, and a gap is formed between every two adjacent first parts; and in the second state, at least one group of bendable parts are bent, and the first part is stacked with the adjacent first part along the circumferential direction. The first supporting mechanisms of the run-flat tire can push each other during air leakage or tire burst, so that sinking is prevented, and bumping of a vehicle is greatly reduced.

The present invention addresses the problem of providing a rubber composition having improved heat resistance while suppressing blooming and ensuring tackiness. The means for solving the problem is a rubber composition containing a rubber component, two or more sulfenamide-based vulcanization accelerators, and one or more thiuram-based vulcanization accelerators, wherein the content of each of the two or more sulfenamide-based vulcanization accelerators is 3.7 parts by mass or less per 100 parts by mass of the rubber component, and the total content of the two or more sulfenamide-based vulcanization accelerators is 4 parts by mass or more per 100 parts by mass of the rubber component.

The object of this invention is to provide a rubber composition that suppresses bloom and maintains tack while improving heat resistance. [Solution] A rubber composition comprising a rubber component, two or more sulfenamide-based vulcanization accelerators, and one or more thiram-based vulcanization accelerators, wherein the content of each of the two or more sulfenamide-based vulcanization accelerators is 3.7 parts by mass or less per 100 parts by mass of the rubber component, and the total content of the two or more sulfenamide-based vulcanization accelerators is 4 parts by mass or more per 100 parts by mass of the rubber component.

The present disclosure provides a toroidal insert for a run-flat tire assembly. The toroidal insert comprises at least two inner segments arranged along a circumference of a wheel to define a first annular ring. The toroidal insert further comprises at least two outer segments arranged along the circumference of the wheel to define a second annular ring. The at least two outer segments are attached to the at least two inner segments to form the toroidal insert. An inner radial surface of the toroidal insert corresponds to a width of the wheel and is variable.

A system may include one or more processors, and one or more non-transitory, computer-readable media including instructions which, when executed by the one or more processors, cause the one or more processors to obtain, using one or more sensors of a sensor device, acceleration data associated with a vehicle, determine, based on the acceleration data, a vehicle condition of a plurality of predefined vehicle conditions, in response to the determined condition including a flat tire, query a database using an identifier of the vehicle to determine service coverage for the vehicle, determine one or more response actions based on the service coverage for the vehicle and a location of the vehicle, and cause implementation of at least one of the one or more response actions.

The present disclosure provides a toroidal insert (100) for a run-flat tire assembly. The toroidal insert (100) comprises at least two inner segments (102) arranged along a circumference of a wheel to define a first annular ring. The toroidal insert further comprises at least two outer segments (120) arranged along the circumference of the wheel to define a second annular ring (122). The at least two outer segments (120) are attached to the at least two inner segments (102) to form the toroidal insert (100). An inner radial surface (132b) of the toroidal insert (100) corresponds to a width of the wheel and is variable.

The application relates to the field of rubber materials and discloses a rubber material for a run-flat tire and a preparation method thereof, the rubber material for the run-flat tire comprising fluororubber, natural rubber, modified butadiene styrene rubber, modified white carbon black, nano zinc oxide, stearic acid, sulfur and an accelerator; the modified butadiene styrene rubber is prepared by introducing a hydroxyl functional group into butadiene styrene rubber through an epoxy ring-opening method, and then grafting a modified additive onto the butadiene styrene rubber through an esterification reaction; the modified additive is prepared by preparing a DOPO derivative through a reaction of DOPO and N-(4-aminophenyl) maleic imide, and then preparing a modified DOPO derivative through a dehydration condensation of the DOPO derivative and p-formaldehyde benzoic acid; and the modified white carbon black is prepared by coating the white carbon black surface through a condensation method by using hexachlorocyclotriphosphazene, melamine and p-phenylenediamine; and the rubber material prepared by the application has excellent mechanical properties, flame-retardant properties and long-term aging resistance.

The invention provides a navigation method and device, equipment and a medium, and relates to the technical field of maps, in particular to the technical field of map navigation, intelligent cabins and automatic driving. According to the implementation scheme, in response to the fact that the vehicle is subjected to tire burst, tire deformation information of the tire burst wheel is determined on the basis of sensing data for the tire burst wheel, and the tire deformation information indicates size information of the tire burst wheel after tire burst; determining position information of a target lane line and an adjustment direction for the target lane line in a target map for navigating the vehicle based on the current driving lane of the vehicle and the position of the flat tire wheel in the vehicle; determining an adjustment amount for the target lane line based on the tire deformation information; adjusting position information of the target lane line based on the adjustment direction and the adjustment amount; determining a virtual lane line for the vehicle after tire burst based on the adjustment result of the position information of the target lane line; and navigating the vehicle by using the target map containing the virtual lane line.

The invention relates to the technical field of tire safety, and discloses a separated type safe run-flat tire. Comprising an outer tire, a separated inner tire which is separated into a plurality of mutually independent sealed air bags along the circumferential direction, a rim which is provided with through holes and one-way valves corresponding to the air bags, a butt-joint inflation tube which can move along the circumferential direction and is sequentially in butt joint with the through holes in a sealed manner, a rotating main shaft driven by a rotating motor and an inflation pump fixedly connected to the rotating main shaft. A pressure sensor is arranged in each air bag and electrically connected with an inflation judgment module, and the inflation judgment module calculates inflation judgment variables based on the real-time air pressure, the air pressure change trend and the vehicle running / environment parameters, determines the target air bag needing to be inflated and controls the butt-joint inflation pipe and the inflation pump to conduct air supply. When the local air bag is damaged and leaks air, the other air bags can continue to be supported, the air inflation time can be accurately judged, mistaken air inflation and delayed air supplementation are reduced, and the controllability and driving safety of a vehicle under high-speed driving are improved.

A tire sealant container (1) for a flat tire repair kit. The tire sealant container (1) includes a hollow body, which is at least partially or regionally in particular cylindrical and preferably circularly cylindrical, having a bottom-side lower container portion (2), a lid-side upper container portion (3), and a sheath part (4) connecting the lower container portion (2) to the upper container portion (3). The lid-side upper container portion (3) is beaded with an upper flanged rim (5) on a lid-side edge region of the sheath part (4), preferably with the interposed clamping of a circumferential seal (6).

The application discloses a flat tire vehicle stability control device and a control method. The flat tire vehicle stability control device comprises a tire pressure sensor, a tire pressure receiving module, a control module and a flat tire execution mechanism. The tire pressure sensor is used for detecting tire pressure information of a tire. The tire pressure receiving module is electrically connected with the tire pressure sensor and is used for receiving the tire pressure information. The control module is electrically connected with the tire pressure receiving module and is adapted to determine a control instruction according to the tire pressure information when a flat tire occurs. The flat tire execution mechanism is electrically connected with the control module and is adapted to selectively lock a steering column according to the control instruction. The flat tire vehicle stability control device can make the vehicle quickly and stably stop and prevent the driver from misoperation when the vehicle has a flat tire.

The invention discloses a tire burst stability testing method, system and device and a storage medium, and the tire burst stability testing method comprises the following steps: determining a tire performance curve of each tire pressure value under the condition that a plurality of different tire pressure values are preset; under the condition that the first vehicle speed reaches a first preset vehicle speed threshold value, a tire burst starting stop signal of any one of the four wheels is changed from zero to one; determining a first maximum lane transverse offset, a first maximum side slip angle and a first maximum yaw velocity value under the condition that a flat tire function opening and closing signal value is zero and a corresponding relation between a flat tire starting time value and a tire performance curve of each tire pressure value is set, and determining a second maximum lane transverse offset, a second maximum side slip angle and a second maximum yaw velocity value under the condition that the flat tire function opening and closing signal value is one. Determining a second maximum lane transverse offset, a second maximum side slip angle and a second maximum yaw velocity value; the tire burst stability test result is determined, and the accuracy and efficiency of the tire burst stability test are improved.

The utility model provides an anti-abrasion tire lifting mechanism assembly which comprises a U-shaped base arranged on the ground, an opening of the base faces forwards, a first telescopic push rod, a containing cavity, a U-shaped lifting frame, a climbing slope and a guide insertion rod are vertically arranged at the four corners of the base respectively, and the guide insertion rod is located at the side end of the first telescopic push rod and located in the containing cavity. The base is provided with a guide insertion hole in sliding connection with the guide insertion hole, and the lifting frame is further provided with a tire abrasion prevention limiting module used for limiting tires of an automobile. According to the lifting mechanism assembly capable of preventing the tire from being abraded, the basic requirement for lifting an automobile can be met, and the vertical guide structure can be arranged at the side end of the lifting structure, so that the situation that the lifting structure directly bears non-vertical acting force and is easily damaged due to deformation is avoided, and then the use requirement of people is more fully met.

The invention discloses a tire burst detection method and a related device, and is applied to the field of tire burst detection. In the application, a master control device triggers to send a first instruction to a first tire pressure monitoring system TPMS of a first tire of the vehicle when detecting that rack force of at least one steering system of the vehicle meets a first condition, and the first instruction indicates the first TPMS to detect the first tire. And correspondingly, the first TPMS responds to the first instruction, detects the current tire pressure of the first tire and sends a detection result of the first tire to the main control device under the condition that the current tire pressure of the first tire meets the abnormal condition, so that the main control device determines whether the first tire is punctured or not based on the detection result of the first tire. Therefore, the detection rate of tire burst can be improved, the power consumption of the TPMS of the tire is saved, and the safety of a vehicle is improved.

The application provides a device for manufacturing common tires and run-flat tires, and is characterized in that the device comprises a main shaft sleeve, a first pushing assembly, a guide disc A, a sector block, a tension spring, a guide disc B, an inner support block, a second pushing assembly, a support block, a support plate, a reinforcing rubber curve cushion block, an end cover and a capsule pressing ring; the first pushing assembly can lift the sector block and the inner support block; the second pushing assembly can lift the support block; the shape of the capsule can be changed through the lifting of the sector block, the inner support block and the support block. The end cover is arranged on the guide disc B, and the capsule pressing ring is arranged on the end cover and presses the capsule. The device for manufacturing common tires and run-flat tires can lift the capsule according to requirements.

The invention relates to the technical field of run-flat tire manufacturing, and discloses a run-flat tire based on memory alloy, which comprises a tire sidewall and an upper memory alloy net arranged in a deformation area of the tire sidewall, when the temperature of the upper memory alloy net is higher than the preset temperature or the stress borne by the upper memory alloy net is higher than the preset stress, the upper memory alloy net is subjected to phase change hardening. The upper memory alloy net is arranged on the tire side wall, the buffering and energy absorbing effects of the tire side wall under normal air pressure are guaranteed, when the tire is in an internal pressure loss environment, the upper memory alloy net is subjected to phase change hardening, the rigidity of the tire side wall is improved, and the tire can normally run in an original shape under pressure loss; therefore, the driving safety under the condition of tire pressure loss is ensured.

The application relates to the technical field of tread processing, in particular to a run-flat tire with improved high-speed performance and a tread processing equipment thereof, which specifically comprises a base and a top frame, the base is fixedly installed at the bottom of the top frame, the top of the base is provided with two sliding seats, the top of each sliding seat is fixedly installed with a sliding rail through a cushion block, the inside of the sliding rail is slidably connected with a sliding bottom plate, the top of the sliding bottom plate is fixedly installed with two arc-shaped rails, the top of one side of the sliding seat is fixedly installed with a support, and the top of the cushion block is fixedly installed with an axle seat; the application divides an arc-shaped expansion plate into two parts to synchronously expand and eliminate the gap, and sets an arc-shaped frame with a guide roller, so that the problems of deformation and non-tight fitting when the outer cover layer is fitted with the tire are solved, the fitting precision and the tire quality are improved.

Provided is a non-pneumatic tire that improves the durability of the entire tire. A tire (1) includes an inner annular portion (20), an outer annular portion (30), and a plurality of spokes (40). A pair of inner inclined surfaces (21) are formed on an outer peripheral portion of the inner annular portion that opposes the outer annular portion, and approach the outer annular portion as they move from both ends in the tire width direction toward the center in the tire width direction. A pair of outer inclined surfaces (31) are formed on an inner peripheral portion of the outer annular portion that opposes the inner annular portion, and approach the inner annular portion as they move from both ends in the tire width direction toward the center in the tire width direction. The spokes have an intermediate portion that extends between the inner annular portion and the outer annular portion, an inner connecting portion that connects the intermediate portion and the inner annular portion, and an outer connecting portion that connects the intermediate portion and the outer annular portion. The inner connecting portion includes an inner continuous portion that has a shape that continuously connects to the inner inclined surfaces. The outer connecting portion includes an outer continuous portion that has a shape that continuously connects to the outer inclined surfaces.

The embodiment of the invention provides a tire isolation air cushion, a control method thereof and a tire isolation device, and the method comprises the following steps: a pressure-bearing layer which is in contact with a tire of a vehicle, and the curvature of the pressure-bearing layer is matched with the tread of the tire; the contact layer is in contact with the surface of the bearing body, is arranged opposite to the pressure bearing layer and is used for fixing the vehicle on the surface of the bearing body; the airtight layer is located between the pressure bearing layer and the contact layer and used for isolating and supporting the tire and the surface of the bearing body after inflation. The technical problem of flat tire spots caused by long-term parking of the vehicle in related technologies is solved.

The invention discloses a tire burst prediction method and system for an anti-burst tire, a vehicle and a storage medium. The method comprises the following steps: acquiring current operation data of the vehicle, current operation data of the anti-burst tire and current scene information of the vehicle; inputting the current running data of the vehicle, the current running data of the explosion-proof tire and the current scene information of the vehicle into a digital twin model, carrying out real-time detection based on a detection sub-model in the digital twin model, determining a first tire burst prediction result, carrying out simulation prediction based on a simulation sub-model in the digital twin model, and determining a second tire burst prediction result; determining a second tire burst prediction result; and based on the first tire burst prediction result and the second tire burst prediction result, determining the tire burst probability of the burst-proof tire. Through multi-dimensional data acquisition and in combination with the digital twin model, the tire burst probability of the anti-explosion tire is determined, so that the tire burst risk prediction of the anti-explosion tire is realized, the accuracy of the tire burst risk prediction of the anti-explosion tire is improved, and the reliability and safety of vehicle driving are further ensured.

The utility model belongs to the field of tires, and particularly relates to a run-flat tire with a multilayer composite structure, which comprises a rim, an inner tube clamping ring is arranged on the outer layer of the rim, a clamping gap is reserved between the rim and the inner tube clamping ring, a lock plunger frame is mounted in the middle of the inner tube clamping ring, and a lock plunger penetrates through the lock plunger frame; the rim is sleeved with a tire, and the tire comprises an outer tire body and an inner tire body. The lock plunger penetrating through the lock plunger frame sequentially drags and penetrates through the inner tire clamping ring, the inner tire and the outer tire, the inner tire and the outer tire are pressed and covered by the lock plunger to be tightly attached, and the tire supporting piece, the inner tire and the outer tire form a composite structure. And when the tread is damaged, the spring piece resets to enable the tire supporting piece to protrude out of the outer layer of the tire, the tread is temporarily replaced by the tire supporting piece, normal running of the tire is kept, and the potential safety hazard of tire burst prevention is reduced.

The utility model discloses a wear-resistant run-flat tire which comprises a tire main body, the tire main body comprises a rim, an outer tire is arranged on the rim, inner supporting columns are arranged between the rim and the outer tire, a fixing pipe is fixedly arranged between the inner supporting columns, a communicating pipe is arranged between the fixing pipe and the inner supporting columns, and the communicating pipe is communicated with air outlet pipes on the two sides of the inner supporting columns. The communicating pipe is further provided with an air inlet pipe on one of the inner supporting columns, a protective layer is arranged on the inner side of the outer tire, an anti-skid sleeve is arranged on the outer side of the outer tire, an anti-skid block is arranged on the anti-skid sleeve, and anti-skid protrusions are arranged on the anti-skid block. Sufficient supporting force is provided through the supporting cavities of the inner supporting columns, continuous use of the tire is facilitated, and the anti-skid performance of the tire is improved by arranging the protective sleeve and arranging the anti-skid blocks and the anti-skid protrusions on the anti-skid sleeve.