Antiskid tire

Abstract

The utility model discloses an anti-skid tire, which comprises a tire body, an anti-skid layer, an anti-skid layer and an anti-skid layer, the fixed seat is embedded in the tread; the fixed seat comprises an extrusion groove and an air storage cavity; the air storage cavity comprises a first cavity, and the first cavity communicates with the extrusion groove through an air channel; the cross sectional area of the air channel is smaller than that of the extrusion groove, and the cross sectional area of the air channel is smaller than that of the first cavity of the air storage cavity; the extrusion rod is movably connected with the extrusion groove in the radial direction of the tire body, and the extrusion rod is used for extruding air in the extrusion groove into the air storage cavity; and the elastic piece is fixedly connected to one end of the extrusion rod and used for making contact with the ground. The road holding force of the tire can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially to a skidproof tire. BACKGROUND

[0002] Most of the use scene of winter tire is snow field, in order to improve the passability of icy and snowy road surface, winter tire is mainly because the material of the tread is different, and the material of the tread is softer.The physical property of the material of ordinary tire is: the colder the air temperature is, the harder the material will be, and the smaller the area of contact with the road surface is, and the worse the grip performance is.The material of winter tire can make the rubber of the tire softer in cold weather, and the ground contact area and friction will be larger.

[0003] No matter city or rural road section, the road surface can appear relatively small stones, these small stones can be stuck in the tread of the tire, leading to filling effect in the tread of the tire in winter, and the tire tread is the key to tire skidproof, and the stone in the gap of the winter tire can cause a certain degree of influence on the grip of the tire on icy or snow-covered road surface, and in the process of driving on winter road surface, the snow stuck in the gap for a long time can not be cleaned or thrown out, which can further cause tire skid. SUMMARY

[0004] The utility model discloses a kind of skidproof tires to solve the problem that stone or snow in the tread of tire affects tire grip.

[0005] To solve the above technical problems, the embodiment of the utility model discloses a kind of skidproof tires, comprising: tire body, including tread;Fixed seat, embedded in the tread;The fixed seat includes extrusion slot and gas storage cavity;Wherein, the gas storage cavity includes first cavity, the first cavity and the extrusion slot are communicated by gas channel;The cross-sectional area of the gas channel is less than the cross-sectional area of the extrusion slot, and the cross-sectional area of the gas channel is less than the cross-sectional area of the first cavity of the gas storage cavity;Extrusion rod, with the extrusion slot is movably connected in the radial direction of the tire body, and the extrusion rod is used to extrude air in the extrusion slot into the gas storage cavity;Resilient member, fixedly connected to one end of the extrusion rod, and the resilient member is used to contact ground.

[0006] With the technical scheme, the elastic member contacts the ground and is extruded, and the extrusion rod connected with the elastic member moves along the radial direction of the tire body and towards the center of the tire body, extruding the air inside the extrusion groove during the movement of the extrusion rod, so that the air inside the extrusion groove enters the air storage cavity through the air passage, and when the extrusion rod moves to the bottom of the extrusion groove and cannot continue to move, the air originally in the extrusion groove is extruded and enters the air storage cavity, and because the cross-sectional area of the air passage is smaller than the cross-sectional area of the extrusion groove and the cross-sectional area of the first cavity of the air storage cavity, the air in the air storage cavity does not flow back to the extrusion groove quickly, so that the extrusion rod does not quickly extend out, and the elastic member connected with the extrusion rod does not rebound immediately, but slowly rebounds to the original position at the existing height.

[0007] Based on this, when driving on a snow-covered road, the elastic member connected with the extrusion rod will penetrate into the snow in advance before the extrusion rod contacts the bottom of the extrusion groove, achieving a first-time grip, and when the elastic member is extruded, it will shrink to maintain the grip and will not rebound immediately, but will slowly rebound to the original position at the existing height, thereby effectively increasing the grip and maintaining the driving of the tire on the snow-covered road.

[0008] According to another specific embodiment of the present application, the air storage cavity further comprises a second cavity, and the second cavity is arranged around the extrusion groove; the second cavity and the first cavity are communicated to jointly accommodate the air from the extrusion groove.

[0009] According to another specific embodiment of the present application, the air valve is further provided with an air passage hole; the air valve is used to switch between a first state and a second state, in the first state, the air passage hole communicates the extrusion groove and the second air passage, and in the second state, the air passage hole communicates the first air passage and the air storage cavity.

[0010] With the technical scheme, a part of the air valve extends into the extrusion groove, and the extrusion rod contacts the air valve during the downward movement of the extrusion rod, so that the air valve plays a buffering role, avoiding the extrusion rod directly impacting the bottom of the extrusion groove and the elastic member connected with the extrusion rod impacting the fixed seat.

[0011] According to another specific embodiment of the present application, the air valve further comprises an air passage hole; the air valve is used to switch between a first state and a second state, in the first state, the air passage hole communicates the extrusion groove and the second air passage, and in the second state, the air passage hole communicates the first air passage and the air storage cavity.

[0012] According to the technical scheme, in the first state of the air valve, most of the air in the extrusion groove flows into the air storage cavity through the first air channel and the second air channel, and a small amount of air flows into the air storage cavity through the air hole and the second air channel in turn; in the second state of the air valve, most of the air in the air storage cavity flows into the extrusion groove through the second air channel and the first air channel, and a small amount of air flows into the extrusion groove through the air hole and the first air channel in turn. In other words, the air flow path is increased by the air hole in the embodiment of the application. On the other hand, when the bottom of the air valve contacts the bottom wall of the air storage cavity, the second air channel is blocked, and the air in the air storage cavity cannot enter the extrusion groove through the second air channel and the first air channel, at this time, the air in the air storage cavity can directly enter the first air channel through the air hole, and then enter the extrusion groove.

[0013] According to another specific embodiment of the utility model, the air valve further comprises: a first cylindrical part, the first cylindrical part is hollow inside to define the first air channel; a second cylindrical part connected with the first cylindrical part, the radial dimension of the second cylindrical part is smaller than the radial dimension of the first cylindrical part; the second cylindrical part is hollow inside, and the outer wall is provided with a plurality of air holes; a third cylindrical part connected with the second cylindrical part, the radial dimension of the third cylindrical part is the same as the radial dimension of the first cylindrical part; the third cylindrical part is hollow inside to define the second air channel; the partition part is provided with a connecting hole; the extrusion rod is used to press the air valve along the radial direction of the tire body, so that the air valve is switched from the first state to the second state; in the first state, the third cylindrical part is fitted with the hole wall of the connecting hole, the first cylindrical part is arranged radially along the tire body and spaced apart from the connecting hole, and the air hole communicates the extrusion groove and the second air channel; in the second state, the first cylindrical part is fitted with the hole wall of the connecting hole, the third cylindrical part is arranged radially along the tire body and spaced apart from the connecting hole, and the air hole communicates the air storage cavity and the first air channel.

[0014] According to the technical scheme, before the elastic member contacts the ground, it is not extruded, so the extrusion rod does not extrude the air in the extrusion groove, at this time, the third cylindrical part of the air valve is fitted with the hole wall of the connecting hole, and the first cylindrical part is arranged radially along the tire body and spaced apart from the connecting hole, since the radial dimension of the first cylindrical part is greater than the radial dimension of the second cylindrical part, that is, the air in the extrusion groove can flow to the air hole provided on the outer wall of the second cylindrical part through the gap between the first cylindrical part and the connecting hole, and then enter the second air channel through the air hole, and finally flow to the air storage cavity.

[0015] When the elastic member contacts the ground, it is compressed, and the compression rod starts to move in the compression groove to compress air, until the compression rod moves to the bottom of the compression groove and contacts the air valve, the compression rod presses the air valve downward, the air valve moves downward, at this time, the first columnar part of the air valve is in close contact with the hole wall of the connecting hole, and the third columnar part is spaced apart from the connecting hole along the radial direction of the tire body, since the radial dimension of the third columnar part is greater than the radial dimension of the second columnar part, that is, the air in the air storage cavity can flow to the air hole provided on the outer wall of the second columnar part through the gap between the third columnar part and the connecting hole, and then enter the first air passage from the air hole, and finally flow to the compression groove.

[0016] According to another specific embodiment of the present application, the air valve further comprises a first limiting part and a second limiting part, the first limiting part is connected with the first columnar part, and the cross-sectional area of the first limiting part is greater than that of the connecting hole; the second limiting part is connected with the third columnar part, and the cross-sectional area of the second limiting part is greater than that of the connecting hole.

[0017] By adopting the above technical solution, the cross-sectional area of the first limiting part is greater than that of the connecting hole, thereby avoiding the air valve from being separated from the connecting hole under the compression of the compression rod. The cross-sectional area of the second limiting part is greater than that of the connecting hole, thereby avoiding the air valve from being separated from the connecting hole under the action of gravity or the air pressure in the air storage cavity when the tire rotates.

[0018] According to another specific embodiment of the present application, the fixing seat comprises a mounting part and an extension part connected with each other, the mounting part defines the first cavity of the air storage cavity; the extension part extends along the radial direction of the tire body, and the extension part defines the compression groove and the second cavity; the mounting part is embedded in the tread.

[0019] According to another specific embodiment of the present application, the compression rod comprises a rod part and a pressing part provided at the lower end of the rod part, the cross-sectional area of the pressing part is greater than that of the rod part; the pressing part is in close contact with the inner wall of the compression groove; the compression groove comprises an upper end opening, and a contraction part is provided at the position of the inner wall of the compression groove close to the upper end opening; the cross-sectional area of the contraction part is greater than that of the rod part and smaller than that of the pressing part.

[0020] By adopting the above technical solution, the cross-sectional area of the pressing part is greater than that of the contraction part, thereby limiting the movement of the compression rod out of the compression groove, and avoiding the compression rod from being separated from the compression groove.

[0021] According to another specific embodiment of the present application, the elastic member is in the shape of a circular truncated cone, and the radial dimension of the end part of the elastic member away from one end of the compression rod is smaller than that of the other end.

[0022] By the above technical solution, the end of the elastic member for directly contacting the ground is in a circular truncated cone shape with a smaller radial dimension, and the end connected with the extrusion rod has a larger radial dimension, so that the elastic member can better contact the ground to avoid bending of the elastic member.

[0023] According to another specific embodiment of the present application, the elastic member comprises a plurality of pressure rings connected in sequence and arranged at intervals, and a ring groove is arranged between two adjacent pressure rings.

[0024] By the above technical solution, when the elastic member is not subjected to extrusion and contraction, the ring groove can increase the grip force and keep the tire driving on a snowy road.

[0025] According to another specific embodiment of the present application, a first longitudinal groove is arranged around the center of the tread, and a second longitudinal groove, an arc-shaped groove, a third longitudinal groove and a transverse groove are arranged in sequence on both sides of the first longitudinal groove along the axial direction of the tire body and towards the outside of the tire body; one end of the arc-shaped groove is in communication with the second longitudinal groove, the other end is in communication with the transverse groove, and the third longitudinal groove is in communication with the arc-shaped groove and the transverse groove; a plurality of fixing seats are arranged on the first longitudinal groove along the circumferential direction of the tire body at intervals; and a plurality of fixing seats are arranged on the third longitudinal groove along the circumferential direction of the tire body at intervals.

[0026] By the above technical solution, the arc-shaped groove, the transverse groove, the second longitudinal groove and the third longitudinal groove arranged on the tread are in communication with each other, and the bottom of the tire is subjected to the extrusion of the weight of the vehicle during the rolling of the tire on the road, so that small stones in the arc-shaped groove, the transverse groove, the second longitudinal groove and the third longitudinal groove are more easily extruded out. At the same time, when there is residual snow in the above-mentioned grooves of the tire, the snow in the arc-shaped groove will flow towards the transverse groove, the second longitudinal groove and the third longitudinal groove by the inertia of the tire rotation, and be thrown out by the high-speed rotating tire, so as to increase the friction force of the tire on the ground, and prevent the tire from becoming slippery due to the filling of snow.

[0027] According to another specific embodiment of the present application, the cross sections of the transverse groove, the arc-shaped groove, the first longitudinal groove and the third longitudinal groove are all in a trapezoidal shape, and along the radial direction of the tire body, the groove opening area of the transverse groove, the arc-shaped groove, the first longitudinal groove and the third longitudinal groove at the end towards the outside of the tire body is greater than the groove bottom wall area.

[0028] According to the technical scheme, the notch area of the transverse groove, the arc-shaped groove, the first longitudinal groove and the third longitudinal groove is larger than the area of the groove bottom wall, so that small stones in the transverse groove, the arc-shaped groove, the first longitudinal groove and the third longitudinal groove are more easily extruded and ejected. On the other hand, when the tire contacts the ground, the smaller the area of the transverse groove, the arc-shaped groove, the first longitudinal groove and the third longitudinal groove inwards into the tread, the more the transverse groove, the arc-shaped groove, the first longitudinal groove and the third longitudinal groove contact the ground, thereby increasing the anti-skid effect.

[0029] According to another specific embodiment of the present application, the cross-sectional area of the first longitudinal groove is larger than the cross-sectional area of the third longitudinal groove, and the cross-sectional area of the third longitudinal groove is larger than the cross-sectional area of the second longitudinal groove. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 A perspective view of a tire according to an embodiment of the present application is shown;

[0031] Figure 2 A partial perspective view of a tire according to an embodiment of the present application is shown;

[0032] Figure 3 A partial exploded view of a telescopic assembly according to an embodiment of the present application is shown, wherein the fixed seat is a sectional view;

[0033] Figure 4 A sectional view of a gas valve according to an embodiment of the present application is shown;

[0034] Figure 5 A schematic view of a gas valve according to an embodiment of the present application in a first state is shown;

[0035] Figure 6 A schematic view of a gas valve according to an embodiment of the present application in a second state is shown. DETAILED DESCRIPTION

[0036] The embodiments of the present application will be described in detail by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. Although the description of the present application will be introduced in combination with the preferred embodiments, this does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application in combination with the embodiments is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0037] It should be noted that in the present specification, like numbers and letters refer to like items throughout the drawings, and once an item is defined in one drawing, it is not necessary to further define and explain it in the subsequent drawings.

[0038] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model product is usually placed, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0039] The terms "first", "second", and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0041] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiments of the utility model will be further described in detail below with reference to the drawings.

[0042] Reference Figure 1 and Figure 2 The present embodiment provides an anti-skid tire 1, which comprises a tire body 2, and the tire body 2 comprises a tread 200.

[0043] As Figure 1 shown, a first longitudinal groove 201 is arranged around the center of the tread 200, and along the axial direction X of the tire body 2 and towards the outside of the tire body 2, two sides of the first longitudinal groove 201 are sequentially provided with a second longitudinal groove 202, an arc-shaped groove 203, a third longitudinal groove 204 and a transverse groove 205; wherein one end of the arc-shaped groove 203 is communicated with the second longitudinal groove 202, the other end is communicated with the transverse groove 205, and the third longitudinal groove 204 is communicated with the arc-shaped groove 203 and the transverse groove 205. That is, the present embodiment is provided with two second longitudinal grooves 202 and two third longitudinal grooves 204, the two second longitudinal grooves 202 are symmetrically arranged about the first longitudinal groove 201, and similarly, the two third longitudinal grooves 204 are symmetrically arranged about the first longitudinal groove 201.

[0044] AsFigure 2 As shown, along the axial direction X of the tire body 2, the tread 200 of the tire body 2 is sequentially provided with the transverse groove 205, the third longitudinal groove 204, the arc-shaped groove 203, the second longitudinal groove 202, the first longitudinal groove 201, the second longitudinal groove 202, the arc-shaped groove 203, the third longitudinal groove 204, and the transverse groove 205, wherein the adjacent arc-shaped groove 203 and transverse groove 205 are communicated along the axial direction X of the tire body 2, the third longitudinal groove 204 is arranged at the connection between the arc-shaped groove 203 and the transverse groove 205, and is communicated with the arc-shaped groove 203 and the transverse groove 205, and the end of the arc-shaped groove 203 away from the transverse groove 205 is communicated with the second longitudinal groove 202.

[0045] The plurality of grooves (the arc-shaped groove 203, the transverse groove 205, the second longitudinal groove 202, and the third longitudinal groove 204) arranged on the tread 200 are communicated with each other, and the bottom of the tire 1 is pressed by the weight of the vehicle during the rolling of the tire 1 on the road surface, so that small stones in the plurality of grooves are more easily pressed and ejected. When there is residual snow in the plurality of grooves of the tire 1, the snow in the arc-shaped groove 203 flows towards the transverse groove 205, the second longitudinal groove 202, and the third longitudinal groove 204 by the inertia of the rotation of the tire 1, and is thrown out by the high-speed rotating tire 1, so that the tire 1 increases the friction with the ground, and further prevents the tire 1 from being filled with snow to become slippery.

[0046] Exemplarily, the tread 200 is provided with a plurality of arc-shaped grooves 203 and a plurality of transverse grooves 205 corresponding to the plurality of arc-shaped grooves 203, the plurality of arc-shaped grooves 203 are arranged at intervals along the circumferential direction R of the tire body 2, and the plurality of transverse grooves 205 are arranged at intervals along the circumferential direction R of the tire body 2.

[0047] As shown in Figure 1 and Figure 2 In some possible embodiments, the cross sections of the transverse groove 205, the arc-shaped groove 203, the first longitudinal groove 201, and the third longitudinal groove 204 are all trapezoidal, and along the radial direction Z of the tire body 2, the slot opening area of the end of the transverse groove 205, the arc-shaped groove 203, the first longitudinal groove 201, and the third longitudinal groove 204 away from the tire body 2 is greater than the area of the groove bottom wall. Exemplarily, the slot opening area of the transverse groove 205, the arc-shaped groove 203, the first longitudinal groove 201, and the third longitudinal groove 204 is greater than the area of the groove bottom wall, that is, the cross section of the transverse groove 205, the arc-shaped groove 203, the first longitudinal groove 201, and the third longitudinal groove 204 is trumpet-shaped, so that small stones in the transverse groove 205, the arc-shaped groove 203, the first longitudinal groove 201, and the third longitudinal groove 204 are more easily pressed and ejected.

[0048] On the other hand, when the tire 1 contacts the ground, the smaller the area of the transverse groove 205, the arc-shaped groove 203, the first longitudinal groove 201, and the third longitudinal groove 204 inwardly received on the tread 200, the more the contact with the ground, thereby increasing the anti-skid effect.

[0049] Exemplarily, the cross-sectional area of the first longitudinal groove 201 is greater than the cross-sectional area of the third longitudinal groove 204, and the cross-sectional area of the third longitudinal groove 204 is greater than the cross-sectional area of the second longitudinal groove 202, so as to improve the tightness of the tire.

[0050] As shown in Figure 2 , a plurality of stretchable components 100 are arranged on the first longitudinal groove 201 along the circumferential direction R of the tire body 2; a plurality of stretchable components 100 are also arranged on the two third longitudinal grooves 204 along the circumferential direction R of the tire body 2, so as to improve the grip performance of the tire 1 through the stretchable components 100.

[0051] The specific structure of the stretchable component 100 will be described in detail below in combination with the drawings.

[0052] As shown in Figure 2 and Figure 3 , the stretchable component 100 comprises a fixed seat 3, an extrusion rod 4, an elastic member 5 and an air valve 6. The fixed seat 3 is embedded on the tread 200. Specifically, the fixed seats 3 on the first longitudinal groove 201 are arranged along the circumferential direction R of the tire body 2, and the fixed seats 3 on the third longitudinal groove 204 are arranged at the connection between the transverse groove 205 and the arc-shaped groove 203, and along the circumferential direction R of the tire body 2, every two adjacent fixed seats 3 on the third longitudinal groove 204 are spaced apart by one arc-shaped groove 203 and one transverse groove 205. Those skilled in the art can understand that in other embodiments, every two adjacent fixed seats 3 on the third longitudinal groove 204 can also be spaced apart by a plurality of arc-shaped grooves 203 and transverse grooves 205, for example, two, three, etc.

[0053] In this embodiment, since the two third longitudinal grooves 204 are symmetrically arranged about the first longitudinal groove 201, the plurality of fixed seats 3 arranged on the two third longitudinal grooves 204 are also symmetrically arranged about the first longitudinal groove 201, so as to ensure the balance of the tire.

[0054] As shown in Figure 3 and Figure 4 , the fixed seat 3 comprises an extrusion groove 30 and an air storage cavity 31, the air storage cavity 31 comprises a first cavity 310 and a second cavity 311 connected in communication, and the second cavity 311 of the air storage cavity 31 is arranged around the extrusion groove 30.

[0055] The extrusion groove 30 and the first cavity 310 of the air storage cavity 31 are communicated through an air passage 60; the cross-sectional area of the air passage 60 is smaller than the cross-sectional area of the extrusion groove 30, and the cross-sectional area of the air passage 60 is smaller than the cross-sectional area of the first cavity 310, so as to control the flow rate of air flow between the extrusion groove 30 and the air storage cavity 31, and make the air flow between the extrusion groove 30 and the air storage cavity 31 relatively slow without external force.

[0056] Exemplarily, the extrusion groove 30 and the first cavity 310 of the air storage cavity 31 are both in a cylindrical shape.

[0057] As shown in Figure 2 and Figure 3 The fixing base 3 comprises a mounting portion 300 and an extending portion 301, the mounting portion 300 is internally hollow to define a first cavity 310 of the air storage cavity 31; the extending portion 301 extends along the radial direction Z of the tire body 2, the extending portion 301 is internally hollow to define the extrusion groove 30; and between the inner wall of the extending portion 301 (i.e. the groove wall of the extrusion groove 30) and the outer wall, and from the bottom of the extending portion 301 (i.e. the connecting portion of the extending portion 301 and the mounting portion 300) upwardly, a slot is formed to extend to a certain distance, thereby forming a second cavity 311 of the air storage cavity 31.

[0058] The mounting portion 300 is embedded in the tread 200 of the tire body 2. Exemplarily, the mounting portion 300 of the fixing base 3 is embedded in the tread 200 of the tire body 2 to mount the fixing base 3 to the tread 200. However, it is understood by those skilled in the art that in other embodiments, other methods for fixing the fixing base 3 can also be used, such as adhesion, etc.

[0059] Exemplarily, the extending portion 301 and the mounting portion 300 are both cylindrical, the extrusion groove 30 is arranged at the center of the extending portion 301, and the first cavity 310 of the air storage cavity 31 is arranged at the center of the mounting portion 300, thereby ensuring the balance performance of the tire 1.

[0060] The extrusion rod 4 is movably connected with the extrusion groove 30 along the radial direction Z of the tire body 2, and the extrusion rod 4 is used to extrude the air in the extrusion groove 30 into the air storage cavity 31. The elastic member 5 is fixedly connected to one end of the extrusion rod 4, and the elastic member 5 is used to contact the ground. Exemplarily, the extrusion rod 4 and the elastic member 5 are welded.

[0061] It is easy to understand that under the action of the extrusion rod 4, the air in the extrusion groove 30 will enter the air storage cavity 31 along with the downward movement of the extrusion rod 4.

[0062] As shown in Figure 2 to Figure 4As shown, by using the above technical scheme, when the elastic member 5 contacts the ground and is compressed, the compression rod 4 connected with the elastic member 5 moves along the radial direction Z of the tire body 2 and towards the center of the tire body 2, and the air inside the compression groove 30 is compressed during the movement of the compression rod 4, so that the air inside the compression groove 30 enters the air storage cavity 31 through the air passage 60. When the compression rod 4 moves to the bottom of the compression groove 30 and cannot continue to move, the air originally in the compression groove 30 is all compressed into the air storage cavity 31. Since the cross-sectional area of the air passage 60 directly connecting the compression groove 30 and the first cavity 310 is smaller than the cross-sectional area of the compression groove 30 and smaller than the cross-sectional area of the first cavity 310 of the air storage cavity 31, the air in the air storage cavity 31 will not flow back to the compression groove 30 quickly, so that the compression rod 4 will not quickly extend out, and the elastic member 5 connected with the compression rod 4 will not immediately rebound, but slowly rebound to the original position at the existing height.

[0063] Based on this, when driving on a snowy road, the elastic member 5 connected with the compression rod 4 will penetrate into the snow in advance before the compression rod 4 contacts the bottom of the compression groove 30, so as to achieve the first-time grip. The elastic member 5 will contract to maintain the grip when compressed, and will not immediately rebound, but slowly rebound to the original position at the existing height, thereby effectively increasing the grip and maintaining the driving of the tire 1 on the snowy road.

[0064] As shown in the drawings, Figure 3 to Figure 5 In some possible embodiments, a separation portion 32 is arranged between the compression groove 30 and the first cavity 310 of the air storage cavity 31, and the air valve 6 is arranged in the separation portion 32, and a part of the air valve 6 extends into the compression groove 30. The air valve 6 is hollow inside to define the air passage 60, and the air passage 60 includes a first air passage 61 and a second air passage 62 connected in communication. The first air passage 61 communicates with the compression groove 30, and the second air passage 62 communicates with the first cavity 310 of the air storage cavity 31. Exemplarily, a part of the air valve 6 extends into the compression groove 30, so that the compression rod 4 contacts the air valve 6 during the downward movement of the compression rod 4, thereby playing a buffering role through the air valve 6, avoiding the compression rod 4 directly impacting the bottom of the compression groove 30, and avoiding the elastic member 5 connected with the compression rod 4 impacting the fixed seat 3.

[0065] Exemplarily, the air passage 60 is arranged at the center of the air valve 6 to ensure the balance performance of the tire 1.

[0066] As shown in the drawings, Figure 4 to Figure 6 In some possible embodiments, the air valve 6 further includes an air hole 63. The air valve 6 is used in a first state (as shown in the drawings) and a second state (as shown in the drawings). Figure 5 Figure 6 ​switches between the first state and the second state, in the first state, the vent hole 63 connects the extrusion groove 30 and the second air passage 62. Exemplarily, the first air passage 61 and the second air passage 62 continuously connect the extrusion groove 30 and the air storage cavity 31, on this basis, in the first state of the air valve 6, most of the air in the extrusion groove 30 flows into the air storage cavity 31 through the first air passage 61 and the second air passage 62, and a small amount of air flows into the air storage cavity 31 through the vent hole 63 and the second air passage 62 in turn (as indicated by the arrow A in FIG. 6B). Figure 5

[0067] As shown in FIGS. 6A and 6B, the air valve 6 includes a first air passage 61, a second air passage 62, and a vent hole 63. Figure 3 , Figure 4 and Figure 6 In the second state, the vent hole 63 connects the first air passage 61 and the air storage cavity 31. Exemplarily, the first air passage 61 and the second air passage 62 continuously connect the extrusion groove 30 and the air storage cavity 31, on this basis, in the second state of the air valve 6, most of the air in the air storage cavity 31 flows into the extrusion groove 30 through the second air passage 62 and the first air passage 61, and a small amount of air flows into the extrusion groove 30 through the vent hole 63 and the first air passage 61 in turn (as indicated by the arrow B in FIG. 6B). Figure 6

[0068] That is, the embodiment of the present application increases the air flow path by the provision of the vent hole 63.

[0069] On the other hand, in the embodiment, the vent hole 63 is provided, and the bottom of the air valve 6 can contact the bottom wall of the air storage cavity 31, the second air passage 62 is blocked, and the air in the air storage cavity 31 cannot enter the extrusion groove 30 through the second air passage 62 and the first air passage 61, at this time, the air in the air storage cavity 31 can directly enter the first air passage 61 through the vent hole 63, and then enter the extrusion groove 30.

[0070] As shown in FIGS. 6A and 6B, the air valve 6 includes a first air passage 61, a second air passage 62, and a vent hole 63. Figure 4 to Figure 6 In some possible implementations, the air valve 6 includes a first cylinder portion 601, a second cylinder portion 602, and a third cylinder portion 603 connected in sequence, wherein the first cylinder portion 601 is hollow inside to define the first air passage 61; the third cylinder portion 603 is hollow inside to define the second air passage 62; the radial dimension of the third cylinder portion 603 is the same as that of the first cylinder portion 601, and both are greater than the radial dimension of the second cylinder portion 602; the second cylinder portion 602 is hollow inside, and the outer wall is provided with a plurality of vent holes 63.

[0071] The above-mentioned partition portion 32 is provided with a connecting hole 320; the extrusion rod 4 is used to press the air valve 6 along the radial direction Z of the tire body 2, so that the air valve 6 is switched from the first state to the second state.

[0072] As shown in FIGS. 6A and 6B, the air valve 6 includes a first air passage 61, a second air passage 62, and a vent hole 63. Figure 3 to Figure 5 ​​As shown, in the first state of the air valve 6, the third column portion 603 is in contact with the wall of the connecting hole 320, and the first column portion 601 is spaced apart from the connecting hole 320 along the radial direction Z of the tire body 2. The vent hole 63 connects the compression groove 30 and the second air passage 62. For example, before the elastic member 5 contacts the ground, it is not compressed, so the compression rod 4 does not compress air in the compression groove 30. At this time, the third column portion 603 of the air valve 6 is in contact with the wall of the connecting hole 320, and the first column portion 601 is spaced apart from the connecting hole 320 along the radial direction Z of the tire body 2. Since the radial dimension of the first column portion 601 is larger than the radial dimension of the second column portion 602, the air in the compression groove 30 can flow through the gap between the first column portion 601 and the connecting hole 320 to the vent hole 63 provided on the outer wall of the second column portion 602, and enter the second air passage 62 from the vent hole 63, and finally flow to the air storage chamber 31.

[0073] It is easy to understand that the vent 63 is located on the outer wall of the second column 602, and the interior of the second column 602 is hollow. This means that the vent 63, the first air passage 61, and the second air passage 62 are always in a connected state. However, the relative positional relationship between the first column 601, the second column 602, and the connecting hole 320 determines whether the vent 63 discharges air into the air storage chamber 31 or the extrusion groove 30.

[0074] like Figure 3 , Figure 4 and Figure 6 As shown, in the second state of the air valve 6, the first column part 601 is in contact with the wall of the connecting hole 320, the third column part 603 is arranged at a radial Z interval with the connecting hole 320 along the tire body 2, and the vent hole 63 connects the air storage chamber 31 and the first air passage 61. For example, when the elastic element 5 contacts the ground, it is compressed, and the compression rod 4 begins to move in the compression groove 30 to compress the air until the compression rod 4 moves to the bottom of the compression groove 30 and contacts the air valve 6. The compression rod 4 then presses down the air valve 6, and the air valve 6 moves downward. At this time, the first column part 601 of the air valve 6 is in contact with the wall of the connecting hole 320, while the third column part 603 and the connecting hole 320 are arranged at a radial Z interval along the tire body 2. Since the radial dimension of the third column part 603 is larger than the radial dimension of the second column part 602, the air in the air storage chamber 31 can flow through the gap between the third column part 603 and the connecting hole 320 to the vent hole 63 provided on the outer wall of the second column part 602, and enter the first air passage 61 from the vent hole 63, and finally flow to the compression groove 30.

[0075] In other words, this embodiment uses the continuous switching of air between the extrusion groove 30 and the air storage chamber 31 to complete the extension and retraction of the extrusion rod 4 and the elastic element 5, thereby ensuring the grip of the tire 1.

[0076] It is easy to understand that when the elastic member 5 is detached from the ground, the extrusion rod 4 moves outward along the radial direction Z of the tire body 2, and the air pressure in the air storage cavity 31 can push the air valve 6 in the second state upward to return to the first state. At the same time, before the tire 1 contacts the ground again and moves downward again, gravity will also assist the reset of the air valve 6.

[0077] As shown in Figure 4 to Figure 6 some possible embodiments, the air valve 6 further includes a first limiting portion 600 and a second limiting portion 604. The first limiting portion 600 is connected with the first columnar portion 601, and the first air channel 61 extends upwardly through the first limiting portion 600. The cross-sectional area of the first limiting portion 600 is greater than that of the connecting hole 320, so as to avoid the air valve 6 from being detached from the connecting hole 320 under the extrusion of the extrusion rod 4.

[0078] The second limiting portion 604 is connected with the third columnar portion 603, and the second air channel 62 extends downwardly through the second limiting portion 604. The cross-sectional area of the second limiting portion 604 is greater than that of the connecting hole 320, so as to avoid the air valve 6 from being detached from the connecting hole 320 under the action of gravity when the tire 1 rotates or under the action of the air pressure in the air storage cavity 31.

[0079] As shown in Figure 3 some possible embodiments, the extrusion rod 4 includes a rod portion 400 and a pressing portion 401 arranged at the lower end of the rod portion 400. The cross-sectional area of the pressing portion 401 is greater than that of the rod portion 400. The pressing portion 401 is in abutment with the inner wall of the extrusion groove 30. Exemplarily, the pressing portion 401 is in abutment with the inner wall of the extrusion groove 30, so as to ensure that the air in the extrusion groove 30 can be extruded into the air storage cavity 31, instead of flowing out through the gap between the pressing portion 401 and the extrusion groove 30.

[0080] As shown in Figure 3 the extrusion groove 30 includes an upper end opening 33. The inner wall of the extrusion groove 30 and the position close to the upper end opening 33 are provided with a contraction portion 330. The cross-sectional area of the contraction portion 330 is greater than that of the rod portion 400 and less than that of the pressing portion 401. Exemplarily, the upper end opening 33 of the extrusion groove 30 is contracted to form the contraction portion 330.

[0081] Exemplarily, the cross sections of the pressing portion 401 and the contraction portion 330 are circular. The cross-sectional area of the pressing portion 401 is greater than that of the contraction portion 330, so as to limit the movement of the extrusion rod 4 outwardly from the extrusion groove 30, thereby avoiding the extrusion rod 4 from being detached from the extrusion groove 30.

[0082] As shown in Figure 3As shown in some possible embodiments, the elastic member 5 is in the shape of a circular truncated cone, and the radial dimension of the end of the elastic member 5 away from the end of the extrusion rod 4 is smaller than the radial dimension of the other end. Exemplarily, the end of the elastic member 5 in the shape of a circular truncated cone in direct contact with the ground has a smaller radial dimension, and the end of the end connected with the extrusion rod 4 has a larger radial dimension, so that the elastic member 5 can better contact the ground to avoid bending of the elastic member 5.

[0083] As shown in some possible embodiments, the elastic member 5 is in the shape of a circular truncated cone, and the radial dimension of the end of the elastic member 5 away from the end of the extrusion rod 4 is smaller than the radial dimension of the other end. Exemplarily, the end of the elastic member 5 in the shape of a circular truncated cone in direct contact with the ground has a smaller radial dimension, and the end of the end connected with the extrusion rod 4 has a larger radial dimension, so that the elastic member 5 can better contact the ground to avoid bending of the elastic member 5. Figure 3 Figure 3 As shown in some possible embodiments, the elastic member 5 includes a plurality of pressure rings 50 connected in sequence and arranged at intervals, and an annular groove 51 is arranged between two adjacent pressure rings 50 in the plurality of pressure rings 50. Exemplarily, when the elastic member 5 contacts the ground, the plurality of pressure rings 50 are contracted and merged.

[0084] Exemplarily, corresponding to the shape of the circular truncated cone of the elastic member 5, the radial dimension of the plurality of pressure rings 50 gradually decreases in the radial direction Z of the tire body 2 and away from the center of the tire body 2, that is, the radial dimension of the pressure ring 50 arranged farther out is smaller.

[0085] Exemplarily, when the elastic member 5 is not extruded and contracted, the annular groove 51 can increase the grip and keep the tire 1 driving on the snow-covered road.

[0086] Although the utility model has been illustrated and described with reference to some preferred embodiments of the utility model, it should be understood by those skilled in the art that the above is a further detailed description of the utility model in combination with specific embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. Those skilled in the art can make various changes in form and details, including making a number of simple inferences or substitutions, without departing from the spirit and scope of the utility model.

Claims

1. A non-slip tire characterized by, The utility model relates to a tire air chamber structure, comprising: a tire body comprising a tire tread; a fixed seat embedded in the tire tread; the fixed seat comprises an extrusion groove and a gas storage cavity; wherein the gas storage cavity comprises a first cavity, and the first cavity and the extrusion groove are communicated through an air passage; the cross-sectional area of the air passage is smaller than the cross-sectional area of the extrusion groove, and the cross-sectional area of the air passage is smaller than the cross-sectional area of the first cavity of the gas storage cavity; an extrusion rod movably connected with the extrusion groove in the radial direction of the tire body, used for extruding air in the extrusion groove into the gas storage cavity; a resilient member fixedly connected to one end of the extrusion rod, used for contacting the ground.

2. The non-skid tire of claim 1, wherein, The gas storage cavity further comprises a second cavity arranged around the extrusion groove; the second cavity and the first cavity are communicated to jointly contain air from the extrusion groove.

3. The non-skid tire of claim 1, wherein, Further comprising a gas valve; a partition is arranged between the extrusion groove and the first cavity of the gas storage cavity, the gas valve is arranged on the partition, and a part of the gas valve extends into the extrusion groove; the gas valve is hollow inside to define the air passage, and the air passage comprises a first air passage and a second air passage communicated with each other; wherein the first air passage communicates with the extrusion groove, and the second air passage communicates with the first cavity.

4. The non-skid tire of claim 3, wherein, The gas valve further comprises an air hole; the gas valve is used for switching between a first state and a second state; in the first state, the air hole communicates the extrusion groove and the second air passage; in the second state, the air hole communicates the first air passage and the gas storage cavity.

5. The non-skid tire of claim 4, wherein, The gas valve further comprises: a first cylindrical portion, which is hollow inside to define the first air passage; a second cylindrical portion connected with the first cylindrical portion, the radial dimension of the second cylindrical portion is smaller than that of the first cylindrical portion; the second cylindrical portion is hollow inside, and the outer wall is provided with a plurality of air holes; a third cylindrical portion connected with the second cylindrical portion, the radial dimension of the third cylindrical portion is the same as that of the first cylindrical portion; the third cylindrical portion is hollow inside to define the second air passage; the partition is provided with a connecting hole; the extrusion rod is used for pressing the gas valve in the radial direction of the tire body to switch the gas valve from the first state to the second state; in the first state, the third cylindrical portion is fitted with the hole wall of the connecting hole, the first cylindrical portion is arranged in the radial direction of the tire body and spaced apart from the connecting hole, and the air hole communicates the extrusion groove and the second air passage; in the second state, the first cylindrical portion is fitted with the hole wall of the connecting hole, the third cylindrical portion is arranged in the radial direction of the tire body and spaced apart from the connecting hole, and the air hole communicates the gas storage cavity and the first air passage.

6. The non-skid tire of claim 5, wherein, The gas valve further comprises a first limiting portion and a second limiting portion; the first limiting portion is connected with the first cylindrical portion, and the cross-sectional area of the first limiting portion is larger than that of the connecting hole; the second limiting portion is connected with the third cylindrical portion, and the cross-sectional area of the second limiting portion is larger than that of the connecting hole.

7. The non-skid tire of claim 2, wherein, The fixing seat comprises a mounting portion and an extending portion connected with each other, the mounting portion defines a first cavity of the gas storage cavity; the extending portion extends along the radial direction of the tire body, and defines the extrusion slot and the second cavity; the mounting portion is embedded in the tread.

8. The anti-skid tire according to claim 1, characterized in that, The extrusion rod comprises a rod portion and a pressing portion arranged at the lower end of the rod portion, the cross-sectional area of the pressing portion is greater than that of the rod portion; the pressing portion is in close contact with the inner wall of the extrusion slot; The extrusion slot comprises an upper end opening, and the inner wall of the extrusion slot is provided with a contraction portion near the upper end opening; The cross-sectional area of the contraction portion is greater than that of the rod portion and less than that of the pressing portion.

9. The non-skid tire of claim 1, wherein, The elastic member is in the shape of a circular truncated cone, the radial dimension of the end portion of one end of the elastic member away from the extrusion rod is less than that of the other end.

10. The non-skid tire of claim 9, wherein, The elastic member comprises a plurality of pressure rings connected in sequence and arranged at intervals, and a ring groove is arranged between adjacent two pressure rings.

11. The non-skid tire of claim 1, wherein, The center of the tread is provided with a first longitudinal groove, and along the axial direction of the tire body and towards the outside of the tire body, both sides of the first longitudinal groove are sequentially provided with a second longitudinal groove, an arc-shaped groove, a third longitudinal groove and a transverse groove; wherein one end of the arc-shaped groove is in communication with the second longitudinal groove, and the other end is in communication with the transverse groove, and the third longitudinal groove is in communication with the arc-shaped groove and the transverse groove; a plurality of fixing seats are arranged on the first longitudinal groove along the circumferential direction of the tire body; a plurality of fixing seats are arranged on the third longitudinal groove along the circumferential direction of the tire body.

12. The non-skid tire of claim 11, wherein, The cross sections of the transverse groove, the arc-shaped groove, the first longitudinal groove and the third longitudinal groove are all in the shape of a trapezoid, and along the radial direction of the tire body, the groove opening area of one end of the transverse groove, the arc-shaped groove, the first longitudinal groove and the third longitudinal groove towards the outside of the tire body is greater than the groove bottom wall area.

13. The non-skid tire of claim 12, wherein, The cross-sectional area of the first longitudinal groove is greater than that of the third longitudinal groove, and the cross-sectional area of the third longitudinal groove is greater than that of the second longitudinal groove.

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