Wheel with controllable tread

Abstract

The present invention discloses a wheel with controllable tread, comprising a tire, wherein an electric push rod is arranged in the inner cavity of the tire, and the electric push rod drives a tread block in the radial direction of the tire, and the tread block is arranged on the outer surface of the tire. When the tire is to be used on different ground surfaces, the user can drive the tread block to move in the radial direction of the tire through the electric push rod to adjust the depth of the tread, so that the tread can be changed according to the requirements of grip and drainage in different usage scenarios, and there is no need to adapt to different usage scenarios by changing the tire, which saves time and effort.

Description

Technical Field

[0001] The invention relates to the technical field of wheels, in particular to a wheel with controllable tread. Background Art

[0002] The main material of tires is rubber. Rubber has good friction and very strong elastic deformation ability. The deeper the tire pattern, the greater the deformation of the pattern block when it contacts the ground, the greater the deformation, and the greater the elasticity. When the tire contacts the ground, its elasticity will not take effect immediately, which requires the car to allocate part of its power to offset it. The elastic deformation caused by the deep tire pattern is large, which will form a large resistance to the car, affecting power output and increasing fuel consumption. In addition, the thermal conductivity of rubber is poor and has a certain thermal hysteresis effect. During the driving process of a motor vehicle, the tire rubs violently with the ground. The thermal hysteresis effect of a tire with a deeper tread is more serious than that of a tire with a shallower tread. When the heat accumulates to a certain extent, it will cause premature damage to the tire.

[0003] As one of the core components of a motor vehicle, tires with different tread patterns are required in different usage scenarios. When a motor vehicle is mainly driven on muddy mountain roads or beaches, tires with deeper tread patterns are required to prevent slipping; when a motor vehicle is mainly driven on paved roads in cities, tires with shallower tread patterns are required to obtain more grip and improve the stability of the motor vehicle.

[0004] Therefore, when the use scene of the motor vehicle changes, people need to use tires with different tread depths suitable for the current use scene. However, motor vehicle users usually do not prepare multiple sets of tires with different tread depths, and it is time-consuming and laborious for users to replace tires. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a wheel with controllable tread, which can adjust the tread depth of the tire.

[0006] The solution of the present invention to solve its technical problem is:

[0007] A wheel with controllable tread comprises a tire, wherein an electric push rod is arranged in the inner cavity of the tire, and the electric push rod drives tread blocks in the radial direction of the tire, and the tread blocks are arranged on the outer surface of the tire.

[0008] As a further improvement of the above technical solution, the tread blocks are integrally formed with the tire.

[0009] As a further improvement of the above technical solution, it includes a wheel hub, the tire is mounted on the wheel hub, the outer peripheral surface of the wheel hub is fixedly connected with an electric contact ring, and the electric push rod is electrically connected to the electric contact ring.

[0010] As a further improvement of the above technical solution, a support frame is arranged in the tire, a part of the support frame is buried in the tire, and another part is arranged in the inner cavity of the tire, and the electric push rod is detachably fixedly connected to the support frame.

[0011] As a further improvement of the above technical solution, the electric push rod is fixedly connected with a threaded block, the support frame is fixedly connected with a fixed block, and the fixed block is threadedly connected to the threaded block.

[0012] As a further improvement of the above technical solution, a telescopic rod is connected to the support frame, and the telescopic rod includes a sleeve and a rod body. The rod body is inserted into the sleeve and is slidably connected to the rod body. A return spring is arranged between the sleeve and the rod body. The return spring makes the sleeve and the rod body tend to move away from each other. The end of the telescopic rod away from the support frame is electrically connected to the electric push rod.

[0013] As a further improvement of the above technical solution, the rod body is fixedly connected to the support frame, the sleeve is arranged on the side of the rod body away from the outside of the tire, the return spring is arranged in the sleeve, and the two ends of the return spring are respectively fixedly connected to the inner bottom surface of the sleeve and the end of the rod body away from the support frame.

[0014] As a further improvement of the above technical solution, the sleeve is fixedly connected with a counterweight block.

[0015] As a further improvement of the above technical solution, a push plate is fixedly connected to one side of the tread block close to the inner cavity of the tire, and the push plate is driven by an electric push rod, and the push plate is displaced in the radial direction of the tire.

[0016] As a further improvement of the above technical solution, the hub is provided with an electric slip ring.

[0017] The beneficial effect of the present invention is that when the tire is to be used on different surfaces, the user can use the electric push rod to drive the tread blocks to move in the radial direction of the tire to adjust the depth of the tread, so that the tread can be changed according to the grip and drainage requirements of different usage scenarios. There is no need to adapt to different usage scenarios by changing tires, which saves time and effort.

[0018] The invention is used in the technical field of wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0020] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A.

[0022] In the figure, 1, tire; 11, tread block; 12, push plate; 2, wheel hub; 21, electric contact ring; 22, bearing; 23, electric slip ring; 3, support frame; 31, ring bar; 32, connecting bar; 33, support bar; 34, fixed block; 4, electric push rod; 41, threaded block; 42, connecting rod; 421, main rod; 422, branch rod; 5, telescopic rod; 51, sleeve; 511, metal sheet; 512, counterweight block; 52, rod body; 53, reset spring. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0024] Reference Figure 1 and Figure 2 A wheel with controllable tread, comprising a tire 1 and a wheel hub 2. The tire 1 is mounted on the wheel hub 2. The outer surface of the tire 1 is provided with tread blocks 11, the main material of the tire 1 and the tread blocks 11 are both made of rubber material, and the rubber part of the tire 1 is integrally formed with the tread blocks 11. The tread blocks 11 and the rubber part of the tire 1 are integrally formed so that the tread blocks 11 and the tire 1 become a whole, so that the heat distribution of the tire 1 as a whole is more uniform, and the situation that the heat is concentrated on a certain part of the tire 1 and the service life of the tire 1 is avoided. The tread blocks 11 are distributed in a circular array around the axis of the tire 1 and in a linear array along the axis of the tire 1.

[0025] The inner cavity of the tire 1 is provided with a support frame 3, a part of which is buried in the tire 1, and the support frame 3 includes a plurality of ring strips 31, a plurality of connecting strips 32 and a plurality of supporting strips 33. The inner diameters of the plurality of ring strips 31 gradually decrease, and two ring strips 31 with the same inner diameter are respectively provided on the corresponding two sides of the tire 1. The two corresponding ring strips 31 located on the two sides of the tire 1 are connected to each other through the connecting strip 32. The ring strips 31 with different inner diameters are fixedly connected by the supporting strip 33. The support frame 3 supports the components in the inner cavity of the tire 1.

[0026] A fixing block 34 can be fixedly connected to the connecting strip 32 located in the inner cavity of the tire 1, and the fixing block 34 is connected to the threaded block 41 through threaded cooperation, and the electric push rod 4 is fixedly connected to the threaded block 41. Through the threaded cooperation between the threaded block 41 and the fixing block 34, when the electric push rod 4 fails or fails, the electric push rod 4 can be replaced; if the tire 1 is damaged and needs to be replaced, the effective electric push rod 4 can be removed and installed on the new tire 1, reducing the waste of resources. The end of the electric push rod 4 close to the outer side of the tire 1 is fixedly connected to a connecting rod 42. The connecting rod 42 includes a main rod 421 and a plurality of branch rods 422, and the plurality of branch rods 422 are arranged on the side of the main rod 421 away from the electric push rod 4 and are fixedly connected to the main rod 421, and the main rod 421 is fixedly connected to the electric push rod 4, and the plurality of branch rods 422 correspond to the number and position of the plurality of tread blocks 11 distributed along the axis of the tire 1, and the end of the branch rod 422 away from the electric push rod 4 is abutted against a push plate 12. The push plate 12 is fixedly connected to one side of the tread block 11 close to the electric push rod 4. The push plate 12 is provided to prevent the tread block 11 from being directly pushed by the electric push rod 4 when the electric push rod 4 pushes the tread block 11 to move in the radial direction of the tire 1, resulting in a bulge in the middle of the tread block 11 and too small position changes at both ends, which affects the overall tread depth adjustment.

[0027] An electric contact ring 21 is fixedly connected to the outer circumference of the wheel hub 2, a bearing 22 is arranged on the wheel hub 2, and an electric slip ring 23 is arranged between the wheel hub 2 and the bearing 22. The inner ring of the electric slip ring 23 is circumferentially fixed relative to the inner ring of the bearing 22, and the outer ring of the electric slip ring 23 is circumferentially fixed relative to the outer ring of the bearing 22. The inner ring of the electric slip ring 23 is connected to the electric contact ring 21 through a wire, and the outer ring of the electric slip ring 23 is electrically connected to the electric system of the motor vehicle. The electric contact ring 21 is electrically connected to the electric push rod 4. Through the electric slip ring 23, the electric system on the motor vehicle can transmit electrical signals to the electric push rod 4 inside the tire 1, thereby realizing the power supply of the electric push rod 4 and controlling the movement of the electric push rod 4.

[0028] A telescopic rod 5 is provided on the support frame 3, and the telescopic rod 5 includes a sleeve 51 and a rod body 52. ​​The rod body 52 is fixedly connected to the connecting strip 32 located in the inner cavity of the tire 1, and is arranged away from the electric push rod 4. The sleeve 51 is sleeved on the side of the rod body 52 away from the electric push rod 4 and is slidably connected to the rod body 52. ​​A return spring 53 is provided in the sleeve 51, and the two ends of the return spring 53 are respectively fixedly connected to the inner bottom surface of the sleeve 51 and the end of the rod body 52 away from the electric push rod 4. The return spring 53 makes the sleeve 51 and the rod body 52 tend to move away from each other. A metal sheet 511 is provided at the end of the sleeve 51 away from the electric push rod 4, and the metal sheet 511 is electrically connected to the electric push rod 4 through a wire. When the motor vehicle is stationary or driving at a low speed, the metal sheet 511 abuts against the electric contact ring 21 on the wheel hub 2, and the electrical signal can be transmitted to the electric push rod 4, thereby realizing the depth control of the tire tread; during the normal driving of the motor vehicle, due to the centrifugal force, the sleeve 51 moves in the direction away from the wheel hub 2, so that the metal sheet 511 and the electric contact ring 21 are no longer abutted, and the motor vehicle is prevented from being too fast, resulting in the metal sheet 511 and the electric contact ring 21 being violently rubbed, causing the gas in the inner cavity of the tire 1 and the bearing 22 to heat up violently, thereby affecting the service life of the tire 1 and the bearing 22. The sleeve 51 is fixedly connected with a counterweight 512. When the mass of the sleeve 51 is too small, the metal sheet 511 may not be able to cancel the abutment with the electric contact ring 21 during normal driving of the vehicle, or a higher speed is required to cancel the abutment between the metal sheet 511 and the electric contact ring 21. By setting the counterweight 512, it is prevented that the metal sheet 511 is difficult to move in the direction away from the electric contact ring 21, thereby improving the service life of the electric contact ring 21.

[0029] The implementation principle of this embodiment is: when the user uses the tire 1 in different scenarios, the user can use the power system in the motor vehicle to electrically connect the electric slip ring 23, the electric contact ring 21, the metal sheet 511 and the electric push rod 4 in sequence, transmit the electrical signal to the electric push rod 4, and the electric push rod 4 pushes the tread block 11 to move in the radial direction of the tire 1 to adjust the tread depth. When the motor vehicle is in a stopped state or a low-speed driving state, the centrifugal force on the sleeve 51 is not enough to overcome the elastic force of the return spring 53, and the metal sheet 511 abuts against the electric contact ring 21. At this time, the user can adjust the depth of the tread, so that the tread can adapt to different scenarios and provide the motor vehicle with more suitable grip or drainage and other performances. When the motor vehicle is traveling at a relatively high speed, the centrifugal force exerted on the sleeve 51 overcomes the elastic force of the return spring 53 and the sleeve 51 moves away from the wheel hub 2, so that the metal sheet 511 and the electric contact ring 21 are no longer in contact with each other, thereby preventing the excessive speed of the vehicle from causing severe friction between the metal sheet 511 and the electric contact ring 21, which may cause rapid heating of various components in the inner cavity of the tire 1 and affect the service life of the tire 1.

[0030] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A wheel with controllable tread, characterized in that: The invention comprises a tire (1), wherein an electric push rod (4) is arranged in the inner cavity of the tire (1), wherein the electric push rod (4) drives a tread block (11) in the radial direction of the tire (1), and wherein the tread block (11) is arranged on the outer surface of the tire (1); It also comprises a wheel hub (2), the tire (1) is mounted on the wheel hub (2), an electric contact ring (21) is fixedly connected to the outer peripheral surface of the wheel hub (2), and the electric push rod (4) is electrically connected to the electric contact ring (21); The wheel hub (2) is provided with an electric slip ring (23); A support frame (3) is arranged in the tire (1), a portion of the support frame (3) is buried in the tire (1), and another portion is arranged in the inner cavity of the tire (1), and the electric push rod (4) is detachably fixedly connected to the support frame (3); The support frame (3) is connected to a telescopic rod (5), the telescopic rod (5) comprising a sleeve (51) and a rod body (52), the rod body (52) is inserted into the sleeve (51) and is slidably connected to the rod body (52), a return spring (53) is provided between the sleeve (51) and the rod body (52), the return spring (53) makes the sleeve (51) and the rod body (52) tend to move away from each other, and the end of the telescopic rod (5) away from the support frame (3) is electrically connected to the electric push rod (4); The rod body (52) is fixedly connected to the support frame (3); the sleeve (51) is arranged on a side of the rod body (52) away from the outer side of the tire (1); the return spring (53) is arranged in the sleeve (51); and the two ends of the return spring (53) are respectively fixedly connected to the inner bottom surface of the sleeve (51) and one end of the rod body (52) away from the support frame (3).

2. A wheel with controllable tread according to claim 1, characterized in that: The tread block (11) is integrally formed with the tire (1).

3. The wheel with controllable tread pattern according to claim 1, characterized in that: The electric push rod (4) is fixedly connected to a threaded block (41), the support frame (3) is fixedly connected to a fixed block (34), and the fixed block (34) is threadedly connected to the threaded block (41).

4. The wheel with controllable tread pattern according to claim 1, characterized in that: The sleeve (51) is fixedly connected to a counterweight block (512).

5. The wheel with controllable tread pattern according to claim 1, characterized in that: A push plate (12) is fixedly connected to one side of the tread block (11) close to the inner cavity of the tire (1); the push plate (12) is driven by an electric push rod (4); and the push plate (12) is displaced in the radial direction of the tire (1).

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