Automobile tire antiskid chain with self-locking device

Abstract

The invention discloses an automobile tire antiskid chain with a self-locking device, and relates to the technical field of tire antiskid chains, the automobile tire antiskid chain comprises a first side antiskid plate and a second side antiskid plate, and transverse self-locking assemblies are arranged on the front surfaces of the first side antiskid plate and the second side antiskid plate. When the device is used, the pushing plate is pressed, and the triangular ratchet is pushed out through the self-locking rod and the self-locking plate and tightly abuts against the side face of a tire. Under the action of the two transverse self-locking assemblies, the triangular ratchets on the two sides of the tire form symmetrical obliquely-upward abutting force, and transverse self-locking of the antiskid chain is completed. The inclined upward triangular ratchets form transverse abutting force on the two sides of the tire, like a plurality of small claws grab the two side faces of the tire, transverse sliding of the antiskid chain is effectively prevented, the antiskid chain cannot transversely slide, the correct contact position and angle between the antiskid chain and the ground can be kept all the time, the antiskid function of the antiskid chain is fully exerted, and the driving safety is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tire chains, in particular to a tire chain with a self-locking device. BACKGROUND

[0002] Tire chains are metal chain devices installed on vehicle tires. When driving on low-adhesion road surfaces such as ice, snow, mud, and wetness, installing tire chains on vehicle tires can effectively increase the friction between tires and the ground, prevent vehicle skidding, improve vehicle stability during starting, accelerating, and braking, and reduce the probability of accidents on rough road surfaces, ensuring the safety of vehicle occupants and vehicles.

[0003] In the prior art, when tire chains are used, complex road conditions can cause uneven tire stress during vehicle driving, and the chains can also be subjected to different forces, which can easily cause lateral sliding, change the contact position and angle of the chains with the ground, and affect the anti-skid function, increasing the risk of driving safety.

[0004] Therefore, we propose a tire chain with a self-locking device to solve the problems raised in the background. SUMMARY

[0005] The present application aims to provide a tire chain with a self-locking device to solve the problems raised in the background, such as complex road conditions during tire chain use, which can easily cause lateral sliding, change the contact position and angle of the chains with the ground, affect the anti-skid function, and increase the risk of driving safety.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a tire chain with a self-locking device, comprising a first side anti-skid plate and a second side anti-skid plate, the front surfaces of the first side anti-skid plate and the second side anti-skid plate are provided with a lateral self-locking assembly;

[0007] The lateral self-locking assembly is provided with two, both of which include a self-locking frame, a fixed plate is fixedly installed inside both self-locking frames, three self-locking plates are movably embedded inside both self-locking frames, a plurality of triangular ratchet teeth are fixedly installed on one side of the outer surface of each of the six self-locking plates, a rubber sleeve is fixedly sleeved on the outer surface of each of the triangular ratchet teeth, a self-locking rod is fixedly installed on the other side of the outer surface of each of the six self-locking plates, a plurality of self-locking teeth are fixedly installed on the outer surface of each of the six self-locking rods, a reset spring is movably sleeved on the outer surface of each of the six self-locking rods, and the self-locking rod is used to push the self-locking plate to move, so that the triangular ratchet teeth move and abut against the side of the tire, forming an inclined resistance on both sides of the tire to prevent the tire chain from moving laterally.

[0008] Preferably, the front wall of the two self-locking frames is provided with three inner grooves, the inner part of the six inner grooves is movably embedded with a rotating plate, the rear surface of the six rotating plates is fixedly installed with a central shaft frame, the inner part of the six central shaft frames is movably sleeved with a movable tooth block, the top of the front surface of the six movable tooth blocks is fixedly connected with three connecting springs, and the edge of the rear surface of the six rotating plates is fixedly installed with a limiting plate.

[0009] Preferably, the inner part of the six rotating plates is fixedly installed with a rotating block, the inner part of the six rotating blocks is movably embedded with an unlocking rod, the outer surface of the six unlocking rods is fixedly installed with a protruding block, the inner wall of the six rotating blocks is provided with a half helical groove, the outer surface of the six protruding blocks is movably embedded in the inner part of the six half helical grooves, and the outer surface of the six unlocking rods is fixedly installed with a connecting plate.

[0010] Preferably, the front surface of the six connecting plates is fixedly installed with two limiting rods, the rear surface of the six rotating plates is provided with two limiting grooves, one end of the plurality of limiting rods is movably embedded in the inner part of the plurality of limiting grooves, one end of the six unlocking rods is fixedly installed with an extension rod, the outer surface of the six extension rods is movably sleeved with a supporting spring, and one end of the six supporting springs is fixedly connected with one end of the six unlocking rods.

[0011] Preferably, the three supporting springs of the six supporting springs are vertically distributed as a group, one end of the two groups of supporting springs is fixedly connected with the inner wall of the first and second side anti-skid plates, the three extension rods of the six extension rods are vertically distributed as a group, one end of the two groups of extension rods is fixedly connected with the inner wall of the first and second side anti-skid plates, the rear surface of the six connecting plates is fixedly installed with two sliding rods, and one end of the plurality of sliding rods is movably penetrated through the rear surface of the two fixed plates.

[0012] Preferably, the rear surface of the six limiting plates is in contact with the front surface of the six movable tooth blocks, the three connecting springs of the plurality of connecting springs are adjacent as a group, one end of the six groups of connecting springs is fixedly connected with the bottom of the six limiting plates, and the rear surface of the six movable tooth blocks is in contact with the six self-locking teeth.

[0013] Preferably, the inner walls of the six inner grooves are provided with annular grooves, the outer surfaces of the six rotating plates are fixedly installed with a plurality of rotating rods, the plurality of rotating rods are evenly divided into six groups, one end of the six groups of rotating rods is movably embedded in the interior of the six annular grooves, one end of the six unlocking rods is movably penetrated to the rear surface of the two fixed plates, the other end of the six unlocking rods is movably penetrated to the front surface of the two self-locking frames, the three unlocking rods of each vertical distribution of the six unlocking rods form a group, and the other end of the two groups of unlocking rods is fixedly installed with an unlocking plate.

[0014] Preferably, the three self-locking rods of each vertical distribution of the six self-locking rods form a group, one end of the two groups of self-locking rods is fixedly installed with a pushing plate, the front surfaces of the two fixed plates and the self-locking frame are provided with three moving holes, the inner walls of the plurality of moving holes are fixedly installed with two sliding blocks, the two moving holes of each longitudinal distribution of the plurality of moving holes form a group, the outer surfaces of the six self-locking rods are movably embedded in the interior of the six groups of moving holes, and the outer surfaces of the six self-locking rods are provided with two sliding grooves.

[0015] Preferably, one end of the six reset springs is fixedly connected with the other side of the outer surface of the six self-locking plates, the three reset springs of each vertical distribution of the six reset springs form a group, the other end of the two groups of reset springs is fixedly connected with the rear surface of the two fixed plates, the rear surfaces of the first side anti-skid plate and the second side anti-skid plate are provided with three first movable holes, the rear surfaces of the first side anti-skid plate and the second side anti-skid plate are fixedly connected with anti-abrasion pads, the bottoms of the two anti-abrasion pads are provided with three second movable holes, the plurality of rubber sleeves are evenly divided into six groups, and the outer surfaces of the six groups of rubber sleeves are movably embedded in the interior of the six first movable holes.

[0016] Preferably, the outer surfaces of the first side anti-skid plate and the second side anti-skid plate are movably sleeved with three connecting hooks, the two connecting hooks of each horizontal distribution of the six connecting hooks form a group, the three groups of connecting hooks are movably connected with anti-skid chains, the rear surfaces of the three anti-skid chains are fixedly connected with wear-resistant strips, the rear surfaces of the three wear-resistant strips are fixedly connected with a plurality of rubber conical nails, the wear-resistant strips are used for increasing the friction between the anti-skid chains and the outer surfaces of the tires, so that the anti-skid chains are more stably attached to the tires, and direct friction between the anti-skid chains and the outer surfaces of the tires is reduced, the rubber conical nails are symmetrically arranged, and the rubber conical nails assist in preventing the anti-skid chains from moving horizontally.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1. When using this invention, pressing the push plate pushes out the triangular ratchet teeth via the self-locking rod and self-locking plate, causing them to firmly abut against the sidewall of the tire. Under the action of the two lateral self-locking components, the triangular ratchet teeth on both sides of the tire form symmetrical upward oblique resistance, completing the lateral self-locking of the anti-skid chain. The upward oblique triangular ratchet teeth form lateral resistance on both sides of the tire, like multiple small claws gripping the sides of the tire, effectively preventing the anti-skid chain from sliding laterally. Without lateral slippage, the anti-skid chain maintains the correct contact position and angle with the ground, fully utilizing its anti-skid function, ensuring stable grip for the vehicle in adverse road conditions, reducing the risk of skidding, and improving driving safety.

[0019] 2. In use, after the anti-skid chain is fixed to the circular outer surface of the tire, the wear-resistant strip contacts the tire surface, the two anti-wear pads contact the two sides of the tire respectively, and some of the multiple rubber cones contact the flat surface of the tire, while others are embedded in the tread grooves on the tire surface. The wear-resistant strip, located between the tire and the anti-skid chain, reduces direct friction between the anti-skid chain and the tire, extending the service life of the anti-skid chain. The rubber cones, in conjunction with the wear-resistant strip, increase the tightness of the contact between the anti-skid chain and the tire, making the anti-skid chain fit the tire more firmly and ensuring the anti-skid effect. At the same time, some of the rubber cones are embedded in the tread grooves of the tire, acting like wedges to further prevent the anti-skid chain from moving laterally, making the chain and tire fit more tightly, better maintaining the stability of the chain position, and improving driving safety.

[0020] 3. In use, pressing the unlocking plate causes the unlocking rod to move the connecting plate, which in turn moves the limiting rod out of the limiting groove. Simultaneously, the protrusion moves into the spiral groove of the semi-spiral groove, applying a rotational force to the rotating block, causing the rotating block and rotating plate to rotate and disengage the movable tooth block from the outer surface of the self-locking tooth. The return spring pulls the self-locking plate in the opposite direction, disengaging the triangular ratchet from the tire surface. Releasing the pressure on the unlocking plate causes the support spring to push the unlocking rod in the opposite direction, simultaneously moving the connecting plate and protrusion in the opposite direction, causing the rotating block and rotating plate to move in the opposite direction. The movable tooth block then rotates back to the self-locking tooth, restoring the initial state of the lateral self-locking assembly without affecting subsequent reuse. Attached Figure Description

[0021] Figure 1 This is a first perspective view of a car tire anti-skid chain with a self-locking device according to the present invention;

[0022] Figure 2 This is a second perspective view of a car tire snow chain with a self-locking device according to the present invention;

[0023] Figure 3 This is a partial cross-sectional schematic diagram of the wear-resistant strip in an anti-skid chain for automobile tires with a self-locking device according to the present invention;

[0024] Figure 4Figure 1 is a perspective view of the structure of the first side anti-skid plate of the automobile tire anti-skid chain with self-locking device according to the present application;

[0025] Figure 5 Figure 4 is a partial structure sectional view of the wear-resistant pad of the automobile tire anti-skid chain with self-locking device according to the present application;

[0026] Figure 6 Figure 5 is a structure sectional view of the transverse self-locking assembly of the automobile tire anti-skid chain with self-locking device according to the present application;

[0027] Figure 7 Figure 6 is a perspective view of the structure of the rubber sleeve of the automobile tire anti-skid chain with self-locking device according to the present application;

[0028] Figure 8 Figure 7 is a perspective view of the structure of the fixed plate of the automobile tire anti-skid chain with self-locking device according to the present application;

[0029] Figure 9 Figure 8 is a perspective view of the structure of the self-locking rod of the automobile tire anti-skid chain with self-locking device according to the present application;

[0030] Figure 10 Figure 9 is a structure sectional view of the inner groove of the automobile tire anti-skid chain with self-locking device according to the present application;

[0031] Figure 11 Figure 10 is a perspective view of the structure of the unlocking rod of the automobile tire anti-skid chain with self-locking device according to the present application;

[0032] Figure 12 Figure 11 is a structure sectional view of the rotating plate of the automobile tire anti-skid chain with self-locking device according to the present application;

[0033] Figure 13 Figure 12 is a structure sectional view of the rotating block of the automobile tire anti-skid chain with self-locking device according to the present application.

[0034] In the figure:

[0035] 1, first side anti-skid plate; 2, second side anti-skid plate; 3, transverse self-locking assembly; 301, self-locking frame; 302, fixed plate; 303, self-locking plate; 304, triangular ratchet; 305, rubber sleeve; 306, self-locking rod; 307, return spring; 308, push plate; 309, self-locking tooth; 310, rotating plate; 311, center shaft frame; 312, limiting plate; 313, movable tooth block; 314, connecting spring; 315, rotating block; 316, half helical groove; 317, limiting groove; 318, unlocking rod; 319, connecting plate; 320, limiting rod; 321, sliding rod; 322, protrusion; 323, telescopic rod; 324, supporting spring; 325, rotating rod; 326, unlocking plate; 327, sliding groove; 328, sliding block; 329, moving hole; 330, inner groove; 331, annular groove; 4, anti-skid chain; 5, connecting hook; 6, wear-resistant strip; 7, wear-resistant pad; 8, second movable hole; 9, rubber cone nail; 10, first movable hole. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0037] Embodiment one: please refer to Figures 1-13The invention provides a technical scheme: a car tire anti-skid chain with a self-locking device, comprising a first side anti-skid plate 1 and a second side anti-skid plate 2, and the front surfaces of the first side anti-skid plate 1 and the second side anti-skid plate 2 are provided with transverse self-locking assemblies 3; the transverse self-locking assemblies 3 are provided with two, and each of the two transverse self-locking assemblies 3 comprises a self-locking frame 301, the inside of each of the two self-locking frames 301 is fixedly installed with a fixed plate 302, the inside of each of the two self-locking frames 301 is movably embedded with three self-locking plates 303, the outer surfaces of the six self-locking plates 303 are fixedly installed with a plurality of triangular ratchet teeth 304 on one side, the outer surfaces of the plurality of triangular ratchet teeth 304 are fixedly sleeved with rubber sleeves 305, the outer surfaces of the six self-locking plates 303 are fixedly installed with self-locking rods 306 on the other side, the outer surfaces of the six self-locking rods 306 are fixedly installed with a plurality of self-locking teeth 309, the outer surfaces of the six self-locking rods 306 are movably sleeved with return springs 307, the self-locking rods 306 are used for pushing the self-locking plates 303 to move, so that the triangular ratchet teeth 304 move and abut against the side of the tire, an inclined resistance is formed on both sides of the tire, the anti-skid chain is prevented from moving transversely, the front surface walls of the interiors of the two self-locking frames 301 are each provided with three internal grooves 330, the interiors of the six internal grooves 330 are movably embedded with rotating plates 310, the rear surfaces of the six rotating plates 310 are fixedly installed with center shaft frames 311, the interiors of the six center shaft frames 311 are movably sleeved with movable tooth blocks 313, the top portions of the front surfaces of the six movable tooth blocks 313 are fixedly connected with three connecting springs 314, the edge portions of the rear surfaces of the six rotating plates 310 are fixedly installed with limiting plates 312, the interiors of the six rotating plates 310 are fixedly installed with rotating blocks 315, the interiors of the six rotating blocks 315 are movably embedded with unlocking rods 318, the outer surfaces of the six unlocking rods 318 are fixedly installed with protrusions 322, the inner walls of the six rotating blocks 315 are each provided with a half helical groove 316, the outer surfaces of the six protrusions 322 are movably embedded in the interiors of the six half helical grooves 316, respectively, the outer surfaces of the six unlocking rods 318 are fixedly installed with connecting plates 319, the front surfaces of the six connecting plates 319 are fixedly installed with two limiting rods 320, the rear surfaces of the six rotating plates 310 are each provided with two limiting grooves 317, one end of each of the plurality of limiting rods 320 is movably embedded in the interior of a limiting groove 317, one end of each of the six unlocking rods 318 is fixedly installed with an extension rod 323, the outer surfaces of the six extension rods 323 are movably sleeved with support springs 324, one end of each of the six support springs 324 is fixedly connected with one end of the six unlocking rods 318, every three support springs 324 vertically distributed form a group, one end of each of the two groups of support springs 324 is fixedly connected with the inner wall of the first side anti-skid plate 1 and the second side anti-skid plate 2, respectively, every three extension rods 323 vertically distributed form a group, one end of each of the two groups of extension rods 323 is fixedly connected with the inner wall of the first side anti-skid plate 1 and the second side anti-skid plate 2, respectively, the rear surfaces of the six connecting plates 319 are fixedly installed with two sliding rods 321,The ends of the plurality of slide rods 321 are movably penetrated through the rear surfaces of the two fixed plates 302, the rear surfaces of the six limiting plates 312 are in contact with the front surfaces of the six movable tooth blocks 313, the plurality of connecting springs 314 are each three adjacent connecting springs 314 as a group, one end of the six groups of connecting springs 314 is fixedly connected with the bottoms of the six limiting plates 312, the rear surfaces of the six movable tooth blocks 313 are in contact with six self-locking teeth 309, the inner walls of the six inner grooves 330 are each provided with an annular groove 331, the outer surfaces of the six rotating plates 310 are each fixedly installed with a plurality of rotating rods 325, the plurality of rotating rods 325 are evenly divided into six groups, one end of the six groups of rotating rods 325 is movably embedded in the inside of the six annular grooves 331, one end of the six unlocking rods 318 is movably penetrated through the rear surfaces of the two fixed plates 302, the other end of the six unlocking rods 318 is movably penetrated through the front surfaces of the two self-locking frames 301, the six unlocking rods 318 are each three vertically distributed unlocking rods 318 as a group, the other ends of the two groups of unlocking rods 318 are each fixedly installed with an unlocking plate 326, the six self-locking rods 306 are each three vertically distributed self-locking rods 306 as a group, one end of the two groups of self-locking rods 306 is fixedly installed with a pushing plate 308, the front surfaces of the two fixed plates 302 and the self-locking frame 301 are each provided with three moving holes 329, the inner walls of the plurality of moving holes 329 are each fixedly installed with two sliding blocks 328, the plurality of moving holes 329 are each two longitudinally distributed moving holes 329 as a group, the outer surfaces of the six self-locking rods 306 are movably embedded in the inside of the six groups of moving holes 329, the outer surfaces of the six self-locking rods 306 are each provided with two sliding grooves 327, the plurality of sliding blocks 328 are evenly divided into twelve groups, the outer surfaces of the twelve groups of sliding blocks 328 are movably embedded in the inside of the twelve sliding grooves 327, one end of the six return springs 307 is fixedly connected with the other side outer surfaces of the six self-locking plates 303, the six return springs 307 are each three vertically distributed return springs 307 as a group, the other ends of the two groups of return springs 307 are fixedly connected with the rear surfaces of the two fixed plates 302, the rear surfaces of the first side anti-skid plate 1 and the second side anti-skid plate 2 are each provided with three first movable holes 10, the rear surfaces of the first side anti-skid plate 1 and the second side anti-skid plate 2 are each fixedly connected with an anti-abrasion pad 7, the bottoms of the two anti-abrasion pads 7 are each provided with three second movable holes 8, the plurality of rubber sleeves 305 are evenly divided into six groups, the outer surfaces of the six groups of rubber sleeves 305 are movably embedded in the inside of the six first movable holes 10, the two self-locking frames 301 are fixedly installed in the inside of the first side anti-skid plate 1 and the second side anti-skid plate 2.

[0038] In this embodiment, in use, the first side anti-skid plate 1 and the second side anti-skid plate 2 are respectively located on the two sides of the tire. Press the push plate 308 towards the self-locking frame 301, push the self-locking rod 306 and the self-locking plate 303 to move, push the triangular ratchet 304 out of the first movable hole 10 and the second movable hole 8, and tightly abut against the side of the tire. Under the action of the rubber sleeve 305, the triangular ratchet 304 is prevented from causing wear to the surface of the tire. The self-locking rod 306 moves while driving the plurality of self-locking teeth 309 to move. The inclined surface of the self-locking teeth 309 generates a pushing force on the movable tooth block 313, so that the top end of the movable tooth block 313 is inclined downward, the other end is tilted up, and the connecting spring 314 is squeezed. When the self-locking teeth 309 that apply the pushing force move away, under the reset of the connecting spring 314, the top end of the movable tooth block 313 is popped up again, abuts against the self-locking teeth 309, and contacts the limiting plate 312 at the same time. Through the meshing locking of the movable tooth block 313 and the self-locking teeth 309, the self-locking rod 306 is locked, and then the triangular ratchet 304 is positionally locked, so that the triangular ratchet 304 is tightly abutted against the side of the tire. Repeat the above operation process, so that the triangular ratchet 304 in the other transverse self-locking assembly 3 is tightly abutted against the other side of the tire. Under the action of the two transverse self-locking assemblies 3, the triangular ratchets 304 on the two sides of the tire respectively form symmetrical inclined upward resistance, and the transverse self-locking of the anti-skid chain 4 is completed. The inclined upward triangular ratchets 304 form transverse resistance on the two sides of the tire, like a plurality of small claws grabbing the two sides of the tire, effectively preventing the anti-skid chain 4 from sliding transversely. The anti-skid chain 4 cannot slide transversely, so as to always maintain the correct contact position and angle with the ground, fully play the anti-skid function, ensure the stable grip of the vehicle on the bad road, reduce the risk of slipping, improve the driving safety, and solve the problem that the anti-skid chain of the automobile tire is easily caused to slide transversely when encountering complex road conditions in the use process, causing the contact position and angle of the chain with the ground to change, affecting the anti-skid function, and increasing the driving safety risk.

[0039] Further, the structure of the half-spiral groove 316 is as follows Figure 12 and Figure 13As shown, the slot near the rotating plate 310 is a linear sliding slot, the other side of the linear sliding slot is connected with a spiral groove, the outer surface of the protrusion 322 is movably embedded in the linear sliding slot inside the semi-spiral groove 316. Press the unlocking plate 326, so that the unlocking rod 318 drives the connecting plate 319 to move towards the tire direction, while extruding the telescopic rod 323 and the supporting spring 324. The movement of the connecting plate 319 will drive the limiting rod 320 to move together, and move out of the corresponding limiting slot 317, so that the rotating plate 310 becomes movable, and the protrusion 322 moves from the linear sliding slot inside the semi-spiral groove 316 to the spiral groove. With the continuous movement of the unlocking rod 318, the protrusion 322 continues to move in the spiral groove of the semi-spiral groove 316, and a constraint relationship is formed between the protrusion 322 and the semi-spiral groove 316. Therefore, when the protrusion 322 moves linearly, it is affected by the spiral track of the semi-spiral groove 316, and exerts a rotating force on the rotating block 315, so that the rotating block 315 rotates around the unlocking rod 318, further drives the rotating plate 310 to rotate around the unlocking rod 318 in the inner recess 330, thereby driving the center shaft frame 311 to rotate, and the movable tooth block 313 is rotated away from the outer surface of the self-locking tooth 309. At this time, the movable tooth block 313 is separated from the self-locking tooth 309, the self-locking tooth 309 loses the limiting, under the resetting action of the reset spring 307, the self-locking plate 303 is pulled to move reversely and reset, and the self-locking rod 306 is reversely ejected and reset, so that the triangular ratchet 304 is separated from the tire surface, and the resistance to the side of the tire is released. When the push plate 308 resets, the pressing of the unlocking plate 326 is released, the supporting spring 324 loses the extrusion force, the unlocking rod 318 is pushed to move reversely and reset, while driving the connecting plate 319 and the protrusion 322 to move reversely, under the action of the spiral track of the semi-spiral groove 316, the rotating block 315 and the rotating plate 310 move reversely, drive the movable tooth block 313 to rotate back to the self-locking tooth 309, while the protrusion 322 gradually moves from the spiral groove to the linear sliding slot, the limiting rod 320 is inserted into the limiting slot 317 again, limiting the rotating plate 310, restoring the initial state of the horizontal self-locking assembly 3, without affecting the subsequent reuse.

[0040] Example two: as Figures 1-3As shown, the front surface of the first side anti-skid plate 1 and the second side anti-skid plate 2 is provided with a transverse self-locking assembly 3, the outer surface of the first side anti-skid plate 1 and the second side anti-skid plate 2 is movably sleeved with three connecting hooks 5, six connecting hooks 5 are divided into three groups, each group has two connecting hooks 5 distributed transversely, the three connecting hooks 5 are movably connected with an anti-skid chain 4, the rear surface of the three anti-skid chains 4 is fixedly connected with a wear-resistant strip 6, the rear surface of the three wear-resistant strips 6 is fixedly connected with a plurality of rubber tapered nails 9, the wear-resistant strip 6 is used to increase the friction between the anti-skid chain 4 and the outer surface of the tire, so that the anti-skid chain 4 is more firmly attached to the tire, and the direct friction between the anti-skid chain 4 and the outer surface of the tire is reduced, the rubber tapered nails 9 are symmetrically arranged, which can prevent the anti-skid chain 4 from moving transversely.

[0041] In this embodiment, in use, the first side anti-skid plate 1 and the second side anti-skid plate 2 are sleeved on the two sides of the tire respectively, so that the anti-skid chain 4 is sleeved on the circular outer surface of the tire. One end of the second side anti-skid plate 2 is provided with a strap hole, and one end of the first side anti-skid plate 1 is provided with a strap fixing buckle. One end of the anti-skid belt is connected together with the strap hole at the second side anti-skid plate 2. After the anti-skid chain 4 is sleeved on the surface of the tire, one end of the anti-skid belt is passed through the space between the hubs to the first side anti-skid plate 1, then the anti-skid belt is tightened and fixed through the strap fixing buckle at the first side anti-skid plate 1, so as to bind the anti-skid chain 4 on the surface of the tire. At this time, the wear-resistant strip 6 is in contact with the surface of the tire, the two wear-resistant pads 7 are respectively in contact with the two sides of the tire, and part of the plurality of rubber tapered nails 9 is in contact with the flat surface of the tire, and part is embedded in the pattern groove of the tire surface. The wear-resistant strip 6 is located between the tire and the anti-skid chain 4, which can reduce the direct friction between the anti-skid chain 4 and the tire, prevent the anti-skid chain 4 from being worn and broken due to frequent friction, prolong the service life of the anti-skid chain, and the wear-resistant pad 7 is located between the first side anti-skid plate 1 (the second side anti-skid plate 2) and the tire, which reduces the direct friction between the first side anti-skid plate 1 and the second side anti-skid plate 2 and the tire, and reduces the wear on the surface of the tire. The structure of the rubber tapered nail 9 is as shown in Figure 3 As shown, the bottom end is symmetrically inclined, which cooperates with the wear-resistant strip 6 to increase the tightness of the contact between the anti-skid chain 4 and the tire, so that the anti-skid chain 4 is more firmly attached to the tire, and the chain displacement and sliding during driving is reduced, which ensures the anti-skid effect. At the same time, part of the rubber tapered nail 9 is clamped into the tire pattern groove, like a wedge, which further prevents the anti-skid chain 4 from moving transversely, makes the chain and the tire more closely combined, can better maintain the stability of the chain position, and improves the driving safety. Then the anti-skid chain 4 is transversely locked through the two transverse self-locking assemblies 3, so as to avoid the transverse movement of the anti-skid chain.

[0042] The effect and working principle of the whole mechanism are as follows: the anti-skid chain 4 is sleeved on the circular outer surface of the tire, so that the first side anti-skid plate 1 and the second side anti-skid plate 2 are respectively sleeved on the two side surfaces of the tire, the anti-skid belt at one end of the second side anti-skid plate 2 passes through the hub to the first side anti-skid plate 1, the anti-skid belt is tightened through the fixing buckle of the belt, so that the wear-resistant strip 6 is in contact with the surface of the tire, the two wear-resistant pads 7 are respectively in contact with the two side surfaces of the tire, and part of the plurality of rubber studs 9 is in contact with the flat surface of the tire and part is embedded in the pattern groove on the surface of the tire. The pressing moving plate 308 is pressed to drive the self-locking rod 306 and the self-locking plate 303 to move, the triangular ratchet 304 is pushed out of the first movable hole 10 and the second movable hole 8, and is tightly abutted against the side surface of the tire, at the same time, the self-locking tooth 309 generates a pushing force on the movable tooth block 313, so that the top end of the movable tooth block 313 is inclined downward, and under the reset of the connecting spring 314, the top end of the movable tooth block 313 is popped up again, and is abutted against the self-locking tooth 309, so as to lock the position of the self-locking rod 306 and the triangular ratchet 304, so that the triangular ratchet 304 is tightly abutted against the side surface of the tire. Under the action of the two transverse self-locking assemblies 3, the triangular ratchets 304 on the two sides of the tire respectively form symmetrical inclined resistance, and the transverse self-locking of the anti-skid chain 4 is completed. The unlocking rod 318 drives the connecting plate 319 to move towards the tire, and at the same time, the stretching rod 323 and the supporting spring 324 are squeezed. The movement of the connecting plate 319 drives the limiting rod 320 to move out of the limiting groove 317, the protrusion 322 moves from the inside of the straight sliding groove of the half-spiral groove 316 to the inside of the spiral groove, the protrusion 322 is affected by the spiral track of the half-spiral groove 316, so that the rotating block 315 rotates around the unlocking rod 318 and the rotating plate 310 as the center, drives the center shaft frame 311 to rotate, and the movable tooth block 313 is rotated away from the outer surface of the self-locking tooth 309, under the reset action of the reset spring 307, the self-locking plate 303 moves reversely and resets, and the self-locking rod 306 reversely ejects and resets, so that the triangular ratchet 304 is separated from the surface of the tire, and the resistance to the side surface of the tire is released. The pressing on the unlocking plate 326 is released, the supporting spring 324 pushes the unlocking rod 318 to reversely reset, at the same time, drives the connecting plate 319 and the protrusion 322 to reversely move, under the action of the spiral track of the half-spiral groove 316, so that the rotating block 315 and the rotating plate 310 reversely move, drive the movable tooth block 313 to rotate back to the self-locking tooth 309, at the same time, the protrusion 322 gradually moves from the spiral groove to the straight sliding groove, the limiting rod 320 is inserted into the limiting groove 317 again, and the rotating plate 310 is limited, so that the initial state of the transverse self-locking assembly 3 is restored.

[0043] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A car tyre anti-skid chain with self-locking device, comprising a first side anti-skid plate (1) and a second side anti-skid plate (2), characterized in that: The front surface of the first side anti-skid plate (1) and the second side anti-skid plate (2) is provided with a transverse self-locking assembly (3); The transverse self-locking assembly (3) is provided with two transverse self-locking assemblies (3), and the two transverse self-locking assemblies (3) each include a self-locking frame (301), the inside of the two self-locking frames (301) is fixedly installed with a fixed plate (302), the inside of the two self-locking frames (301) is movably embedded with three self-locking plates (303), the outer surface of the six self-locking plates (303) is fixedly installed with a plurality of triangular ratchet teeth (304) on one side, the outer surface of the plurality of triangular ratchet teeth (304) is fixedly sleeved with a rubber sleeve (305), the outer surface of the six self-locking plates (303) is fixedly installed with a self-locking rod (306) on the other side, the outer surface of the six self-locking rods (306) is fixedly installed with a plurality of self-locking teeth (309), the outer surface of the six self-locking rods (306) is movably sleeved with a return spring (307), the self-locking rod (306) is used for pushing the self-locking plate (303) to move, so that the triangular ratchet teeth (304) move and abut against the side of the tire, and an inclined resistance is formed on both sides of the tire, thereby preventing the anti-skid chain from moving transversely.

2. Automotive tire antiskid chain with self-locking device according to claim 1, characterized in that: The front surface wall of the inside of the two self-locking frames (301) is provided with three inner grooves (330), the inside of the six inner grooves (330) is movably embedded with a rotating plate (310), the rear surface of the six rotating plates (310) is fixedly installed with a central shaft frame (311), the inside of the six central shaft frames (311) is movably sleeved with a movable tooth block (313), the top of the front surface of the six movable tooth blocks (313) is fixedly connected with three connecting springs (314), and the edge of the rear surface of the six rotating plates (310) is fixedly installed with a limiting plate (312).

3. Automotive tire antiskid chain with self-locking device according to claim 2, characterized in that: The inside of the six rotating plates (310) is fixedly installed with a rotating block (315), the inside of the six rotating blocks (315) is movably embedded with an unlocking rod (318), the outer surface of the six unlocking rods (318) is fixedly installed with a protruding block (322), the inner wall of the six rotating blocks (315) is provided with a half helical groove (316), and the outer surface of the six protruding blocks (322) is movably embedded in the inside of the six half helical grooves (316), respectively. The outer surface of the six unlocking rods (318) is fixedly installed with a connecting plate (319).

4. Automotive tire antiskid chain with self-locking device according to claim 3, characterized in that: The front surface of the six connecting plates (319) is fixedly installed with two limiting rods (320), the rear surface of the six rotating plates (310) is provided with two limiting grooves (317), one end of the plurality of limiting rods (320) is movably embedded in the inside of the plurality of limiting grooves (317), respectively, one end of the six unlocking rods (318) is fixedly installed with a telescopic rod (323), the outer surface of the six telescopic rods (323) is movably sleeved with a supporting spring (324), and one end of the six supporting springs (324) is fixedly connected with one end of the six unlocking rods (318).

5. Automotive tire antiskid chain with self-locking device according to claim 4, characterized in that: Six said support springs (324) every vertical distribution of three support springs (324) is a group, two groups of said support spring (324) one end is fixedly connected with the first side anti-skid plate (1) and the second side anti-skid plate (2) inner wall respectively, six said telescopic rod (323) every vertical distribution of three telescopic rod (323) is a group, two groups of said telescopic rod (323) one end is fixedly connected with the first side anti-skid plate (1) and the second side anti-skid plate (2) inner wall respectively, six said connecting plate (319) rear surface is fixedly installed with two slide rods (321), a plurality of said slide rod (321) one end is respectively active and penetrates to the rear surface of two fixed plate (302).

6. Automotive tire antiskid chain with self-locking device according to claim 5, characterized in that: Six said limiting plate (312) rear surface is respectively in contact with the front surface of six movable tooth block (313), a plurality of said connecting spring (314) every adjacent three connecting spring (314) is a group, six groups of said connecting spring (314) one end is fixedly connected with the bottom of six limiting plate (312) respectively, the rear surface of six said movable tooth block (313) is respectively in contact with six self-locking teeth (309).

7. Automotive tire antiskid chain with self-locking device according to claim 6, characterized in that: Six said inner recess (330) inner wall is provided with annular groove (331), six said rotating plate (310) outer surface is fixedly installed with a plurality of rotating rod (325), a plurality of said rotating rod (325) is divided into six groups on average, six groups of said rotating rod (325) one end is respectively active and embedded in six annular groove (331) inside, one end of six said unlocking rod (318) is respectively active and penetrates to the rear surface of two fixed plate (302), the other end of six said unlocking rod (318) is respectively active and penetrates to the front surface of two self-locking frame (301), six said unlocking rod (318) every vertical distribution of three unlocking rod (318) is a group, the other end of two groups of said unlocking rod (318) is fixedly installed with unlocking plate (326).

8. Automotive tire antiskid chain with self-locking device according to claim 7, characterized in that: Six said self-locking rod (306) every vertical distribution of three self-locking rod (306) is a group, two groups of said self-locking rod (306) one end is fixedly installed with push plate (308), the front surface of two said fixed plate (302) and self-locking frame (301) is provided with three moving hole (329), the inner wall of a plurality of said moving hole (329) is fixedly installed with two sliding block (328), a plurality of said moving hole (329) every longitudinal distribution of two moving hole (329) is a group, the outer surface of six said self-locking rod (306) is respectively active and embedded in six groups of moving hole (329) inside, the outer surface of six said self-locking rod (306) is provided with two sliding groove (327), a plurality of said sliding block (328) is divided into twelve groups on average, the outer surface of twelve groups of said sliding block (328) is respectively active and embedded in twelve sliding grooves (327) inside.

9. Automotive tire antiskid chain with self-locking device according to claim 8, characterized in that: One end of six reset springs (307) is fixedly connected with the other side outer surface of six self-locking plates (303), three reset springs (307) vertically distributed are a group, the other end of two groups of reset springs (307) is fixedly connected with the rear surface of two fixed plates (302), the rear surface of the first side anti-skid plate (1) and the second side anti-skid plate (2) is provided with three first movable holes (10), the rear surface of the first side anti-skid plate (1) and the second side anti-skid plate (2) is fixedly connected with wear pads (7), the bottom of two wear pads (7) is provided with three second movable holes (8), a plurality of rubber sleeves (305) are evenly divided into six groups, the outer surface of six groups of rubber sleeves (305) is movably embedded in the inside of six first movable holes (10), two self-locking frames (301) are fixedly installed in the inside of the first side anti-skid plate (1) and the second side anti-skid plate (2) respectively.

10. The automotive tire chain with self-locking device according to claim 1, characterized in that: The outer surface of the first side anti-skid plate (1) and the second side anti-skid plate (2) movably sheathes three connecting hooks (5), six connecting hooks (5) every two connecting hooks (5) horizontally distributed are a group, three groups of connecting hooks (5) movably connect anti-skid chains (4), the rear surface of three anti-skid chains (4) is fixedly connected with wear strips (6), the rear surface of three wear strips (6) is fixedly connected with a plurality of rubber cone nails (9), the wear strip (6) is used to increase the friction between the anti-skid chain (4) and the outer surface of the tire, so that the anti-skid chain (4) and the tire are more stable and fit, at the same time, the direct friction between the anti-skid chain (4) and the outer surface of the tire is reduced, the rubber cone nail (9) is symmetrically arranged, which helps to prevent the anti-skid chain (4) from moving horizontally.

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