A pair of roller skates

Abstract

A roller skate, comprising a shoe board, the shoe board including a front board portion and a rear board portion connected to the front board portion, a connecting block fixedly connected to the rear board portion, a receiving groove capable of allowing the connecting block to rotate being inwardly formed on a side of the front board portion close to the rear board portion, a rotating shaft rotatably connected to the front board portion being fixedly penetrated through the connecting block, two front wheels being installed at the bottom of the front board portion, two rear wheels being installed at the bottom of the rear board portion, and fixing portions for fixing human body parts being provided on both the front board portion and the rear board portion. In this application, after the roller skate is used, with the rotating shaft as the rotation line, the rear board portion is rotated towards the direction close to the lower surface of the front board portion, so that the connecting block rotates in the receiving groove, realizing the folding of the roller skate, effectively improving the problem that the roller skate is large in volume, occupies a large space in the packaging bag, and is inconvenient to carry.

Description

Technical Field

[0001] The present application relates to the field of roller skate technology, and particularly to a roller skate. Background Art

[0002] Roller skates, also known as roller blades, are usually divided into inline skates and quad skates. Roller skates are both a form of entertainment and a sport, and when in use, they can reduce the frictional force experienced by people during movement. Therefore, roller skates can also be used as a means of transportation.

[0003] Quad roller skates, also known as figure skates, include a shoe plate, a shoe upper fixedly provided above the shoe plate, and four rollers installed at the bottom of the shoe plate. Before a skater uses the roller skates to glide, they place their feet inside the shoe upper. During the gliding process, they control the movement direction of the shoe plate by adjusting the direction of the shoe body axis with their feet off the ground, and the four rollers assist in moving, enabling gliding.

[0004] After the roller skates are used, it is usually necessary for the skater to place the roller skates in a packaging bag for storage and carry the packaging bag by hand. Due to the presence of the shoe upper and multiple rollers, the roller skates are relatively large in volume, taking up a large amount of space when placed in the packaging bag, making it inconvenient to carry the roller skates. Summary of the Invention

[0005] In order to facilitate the skater to carry and glide the roller skates, the present application provides a roller skate.

[0006] The roller skate provided by the present application adopts the following technical solution:

[0007] A roller skate includes a shoe plate. The shoe plate includes a front plate portion and a rear plate portion connected to the front plate portion. The rear plate portion is fixedly connected with a connecting block. An accommodating groove for the connecting block to rotate is formed inwardly on one side of the front plate portion close to the rear plate portion. A rotating shaft rotatably connected to the front plate portion is fixedly penetrated through the connecting block. Two front wheels are installed at the bottom of the front plate portion, and two rear wheels are installed at the bottom of the rear plate portion. And fixing portions for fixing human body parts are provided on both the front plate portion and the rear plate portion.

[0008] By adopting the above technical solution, after the roller skates are used, with the rotating shaft as the rotation axis, the rear plate portion is rotated towards the direction close to the lower surface of the front plate portion, so that the connecting block rotates in the accommodating groove, realizing the folding of the roller skates, effectively improving the problem that the roller skates are relatively large in volume, taking up a large amount of space when placed in the packaging bag, and being inconvenient to carry.

[0009] Optionally, a pair of forward-inclined vertical shafts corresponding to the front wheels one by one are fixedly connected to the lower surface of the front plate portion. One end of each forward-inclined vertical shaft away from the front plate portion is inclined downward toward the side close to the rear plate portion. A follower block rotatably connected to the forward-inclined vertical shaft is sleeved outside each forward-inclined vertical shaft. A first rotating shaft is fixedly penetrated through each front wheel, and each first rotating shaft is rotatably inserted into the end of the corresponding follower block. A follower rod is further provided between the two follower blocks. When one of the front wheels steers, the follower rod can drive the other front wheel to steer synchronously with the steering front wheel.

[0010] By adopting the above technical solution, when it is necessary to control the left turn of the roller skates, pressure is applied to the left front of the front plate portion of the roller skates. The forward-inclined vertical shaft on the left side of the front plate portion receives a downward pressure. However, due to the height limitation of the left front wheel, the follower block close to the pressure application point will rotate outward around the axis of the forward-inclined vertical shaft toward the side close to the left rear wheel. The rotation of the follower block drives the connected first rotating shaft to rotate, thereby realizing the outward rotation of the left front wheel toward the side close to the left rear wheel. Under the action of the follower rod, the right front wheel changes direction accordingly, simply and quickly realizing the direction change of the roller skates; when it is necessary to control the right turn of the roller skates, it is only necessary to apply pressure to the right front of the front plate portion of the roller skates. The operation process is relatively convenient.

[0011] Optionally, a limiting block is fixedly provided on each follower block, and a first swinging groove is inwardly formed on one side of each limiting block away from the corresponding forward-inclined vertical shaft. The follower rod is disposed between the two first swinging grooves, and both ends of the follower rod are fixedly penetrated with a rotating shaft rotatably connected to the groove wall of the corresponding first swinging groove.

[0012] By adopting the above technical solution, when one of the front wheels is pressed to steer, the follower block corresponding to the pressed front wheel rotates to drive the corresponding limiting block to rotate. Due to the limitation of the length of the follower rod, the limiting block corresponding to the other front wheel also rotates, thereby driving the limiting block and the follower block of the other front wheel to rotate accordingly. The rotation of the follower block drives the corresponding first rotating shaft to rotate, so that the other front wheel rotates in the direction of rotation of the pressed front wheel, realizing follow-up direction change.

[0013] Optionally, the rear plate portion is further provided with a follower assembly capable of cooperating with the front plate portion to steer.

[0014] By adopting the above technical solution, when the front plate portion changes direction, the follower assembly of the rear plate portion enables the rear plate portion to be adjusted accordingly with the direction change of the front plate portion, making the rotation of the roller skates smoother.

[0015] Optionally, a second rotating shaft is fixedly penetrated through each of the rear wheels. The follower assembly includes a steering rod disposed between the two second rotating shafts and a mounting seat fixedly disposed on the lower surface of the rear plate portion. A second swing groove capable of accommodating the rotation of the steering rod is inwardly formed on the lower surface of the mounting seat. A third rotating shaft penetrates through the midpoint of the steering rod. The third rotating shaft is fixedly disposed on the groove wall of the second swing groove, and the steering rod is rotatably connected to the outside of the third rotating shaft. An elastic follower portion is fixedly disposed between the steering rod and the rear plate portion.

[0016] By adopting the above technical solution, when the front plate portion changes direction, the pressure on the rear plate portion is unbalanced. At this time, the force balance of the two follower portions is broken, so there is a tendency to restore the force balance, ensuring the stability of the roller skates during the direction-changing process.

[0017] Optionally, the front plate portion is provided with a manual steering assembly.

[0018] By adopting the above technical solution, it is more convenient and faster to control the direction change of the roller skates through the manual steering assembly.

[0019] Optionally, the manual steering assembly includes: a handle with a receiving cavity formed therein; a rotating column rotatably connected to the cavity wall of the receiving cavity; a mounting column rotatably connected to the lower surface of the front plate portion; a left steering wire including a left steering sleeve and a left steering wire core inserted into the left steering sleeve. The left steering sleeve is fixed between the steering limit tube and the mounting plate. One end of the left steering wire core is rotatably wound around the mounting column and then fixed to the position of the follower rod close to the left front wheel. The other end of the left steering wire core passes through the handle and is rotatably wound around the outside of the rotating column and fixedly connected to the rotating column; a right steering wire including a right steering sleeve and a right steering wire core inserted into the right steering sleeve. The right steering sleeve is fixed between the steering limit tube and the mounting plate. One end of the right steering wire core is rotatably wound around the mounting column and then fixed to the position of the follower rod close to the right front wheel. The other end of the right steering wire core passes through the handle and is rotatably wound around the outside of the rotating column and fixedly connected to the rotating column. Both the left steering wire core and the right steering wire core can slidably pass through the mounting plate, and the winding directions of the left steering wire core and the right steering wire core on the rotating column are opposite, and the winding directions of the left steering wire core and the right steering wire core on the mounting column are opposite.

[0020] By adopting the above technical solution, when the operator needs to turn left, rotate the rotating column. Under the action of the left-turning sleeve, the tightening of the left-turning wire core can drive the installation column to rotate, so that the left-turning wire core drives the follower rod to move towards the direction close to the right front wheel. The limit block and the follower block can rotate outwards towards the direction close to the left rear wheel, realizing the steering of the left front wheel. Under the action of the follower rod, the right front wheel also steers accordingly, realizing the left turn of the roller skates.

[0021] When the operator needs to turn right, rotate the rotating column. Under the action of the right-turning sleeve, the right-turning wire core tightens and can drive the installation column to rotate, so that the right-turning wire core can drive the follower rod to move towards the direction close to the left front wheel, and then drive the limit block close to the right front wheel to rotate outwards towards the direction close to the right rear wheel, realizing the steering of the right front wheel. Under the action of the follower rod, the left front wheel also steers accordingly, realizing the right turn of the roller skates. The operation process is relatively convenient.

[0022] Optionally, a brake assembly is provided on each of the rear wheels. A brake wire core is connected to each brake assembly. The two brake wire cores converge into a brake main wire core. A brake sleeve fixed between the rear plate part and the mounting plate is sleeved outside the brake main wire core. A brake handle for fixing the brake main wire core is also hinged on the handle. Triggering the brake handle, the brake handle can control the brake assembly through the brake main wire core to brake the rear wheels.

[0023] By adopting the above technical solution, when braking is required, trigger the brake handle. Under the action of the brake sleeve, the brake handle can control the brake assembly to brake through the brake main wire core, and the operation process is relatively convenient.

[0024] Optionally, each brake assembly includes a fixing piece fixedly arranged on the lower surface of the rear plate part. A brake rod that can abut against the corresponding rear wheel is slidably inserted into each fixing piece. A limiting piece is fixedly arranged at the end of each brake rod far from the rear wheel. A brake spring sleeved outside the brake rod is fixedly arranged between each fixing piece and the corresponding limiting piece. Each brake wire core is fixedly arranged on one side of the corresponding limiting piece close to the corresponding rear wheel. And a first brake limiting tube fixed to the lower surface of the rear plate part is sleeved outside the two brake wire cores. The two first brake limiting tubes are distributed in an "eight" shape, and each brake wire core takes the end of the corresponding first brake limiting tube close to the corresponding rear wheel as an inflection point.

[0025] By adopting the above technical solution, when the brake handle is pinched, the core of the brake bus is tightened, driving the two limit blocks to move away from each other, so that each brake rod can abut against the corresponding rear wheel, realizing the braking of the rear wheel and completing the braking; when the brake handle is released, the core of the brake bus is relaxed, and under the action of the two brake springs, the two limit blocks move towards each other, so that the two brake rods move towards each other, and the two brake rods are separated from the corresponding rear wheels, and the operation process is relatively convenient.

[0026] Optionally, a soft support material with friction is provided on the lower surface of the end of the front plate portion away from the rear plate portion.

[0027] By adopting the above technical solution, by providing a soft support material with friction, during the assisted sliding, it is made to contact the ground, which can increase the friction between the front plate portion and the ground, and the other shoe plate is pushed forward to slide by the backward thrust of the human body, and the slider can move forward more labor-saving.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. By providing a receiving groove on the front plate portion and a connecting block rotatably connected to the receiving groove on the rear plate portion, after the roller skates are used up, they can be folded with the rotating shaft as the rotation axis, effectively improving the problem that the roller skates are large in volume and occupy a large space in the packaging bag and are inconvenient to carry;

[0030] 2. By providing a forward tilt vertical shaft on the front plate portion, and rotatably sleeving a follower block outside the forward tilt vertical shaft, and further providing a follower rod between the two limit blocks connected to the follower block, when one of the front wheels is pressed and turned, the other front wheel can turn accordingly, and the operation process is relatively convenient;

[0031] 3. By providing a manual steering assembly, the steering control of the roller skates can be made more rapid and convenient;

[0032] 4. By triggering the brake handle to control the braking of the brake assembly through the brake bus core, the operation process is relatively convenient;

[0033] 5. By providing a follower assembly on the rear plate portion, while ensuring the smooth turning of the roller skates, the stability of the roller skates during turning can also be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0035] Figure 2 is the partial structural schematic diagram highlighting the forward tilt vertical shaft in the embodiment of the present application;

[0036] Figure 3 is the embodiment of the present applicationFigure 2 Partial enlarged view of part A in

[0037] Figure 4 It is a partial structural schematic diagram highlighting the first swing groove in the embodiment of the present application;

[0038] Figure 5 It is a partial structural schematic diagram highlighting the brake assembly in the embodiment of the present application;

[0039] Figure 6 It is a partial structural schematic diagram highlighting the rotating column in the embodiment of the present application;

[0040] Figure 7 It is the embodiment of the present application Figure 2 Partial enlarged view of part B in

[0041] Figure 8 It is a partial structural schematic diagram highlighting the moving groove in the embodiment of the present application.

[0042] Explanation of reference numerals: 1, shoe plate; 11, front plate part; 111, receiving groove; 112, front wheel; 1121, first rotating shaft; 12, rear plate part; 121, connecting block; 122, rotating shaft; 123, rear wheel; 1231, second rotating shaft; 13, enclosing part; 14, cover; 2, forward tilting vertical shaft; 3, follower block; 31, limiting block; 311, first swing groove; 4, follower rod; 41, rotating shaft; 5, follower assembly; 51, mounting seat; 511, second swing groove; 5111, buffer pad; 52, steering rod; 53, third rotating shaft; 54, follower part; 6, manual steering assembly; 61, handle; 611, receiving cavity; 612, moving groove; 613, positioning ring; 62, mounting post; 621, anti - detachment block; 622, mounting plate; 63, rotating column; 64, left steering wire; 641, left steering sleeve; 642, left steering wire core; 65, right steering wire; 651, right steering sleeve; 652, right steering wire core; 66, mounting ring; 661, lever; 67, return torsion spring; 68, steering limiting tube; 7, brake assembly; 71, fixing piece; 72, brake rod; 73, limiting piece; 74, brake spring; 75, friction pad; 8, brake wire core; 81, brake main wire core; 811, brake sleeve; 82, brake handle; 83, first brake limiting tube; 84, second brake limiting tube; 9, fixing part. Detailed implementation manners

[0043] The following will further elaborate on the present application in conjunction with the attached Figure 1-8 drawings.

[0044] The embodiment of the present application discloses a roller skate. Refer to Figure 1 , Figure 2 and Figure 3, which includes a shoe plate 1. The shoe plate 1 includes a front plate portion 11 and a rear plate portion 12 connected to the front plate portion 11. On the lower surface of the side of the front plate portion 11 close to the rear plate portion 12, a receiving groove 111 is inwardly formed. A connecting block 121 is fixedly connected to the side of the rear plate portion 12 close to the front plate portion 11. A rotating shaft 122 passes through the front plate portion 11. The rotating shaft 122 passes through the connecting block 121. The length direction of the rotating shaft 122 is parallel to the length direction of the receiving groove 111. The rotating shaft 122 is fixedly connected to the connecting block 121 and is rotatably connected to the front plate portion 11. Two front wheels 112 are installed at the bottom of the front plate portion 11. The two front wheels 112 are arranged side by side. Two rear wheels 123 are installed at the bottom of the rear plate portion 12. The two rear wheels 123 are arranged side by side.

[0045] After the roller skates are used, rotate the rear plate portion 12 around the rotating shaft 122 towards the direction close to the lower surface of the front plate portion 11 to realize the folding of the roller skates, saving space and being convenient for storage. It can effectively improve the problem that the roller skates occupy a large space and are not convenient for storage and carrying.

[0046] When the roller skates are in use, rotate the rear plate portion 12 around the rotating shaft 122 towards the direction away from the lower surface of the front plate portion 11 until the front plate portion 11 is flush with the rear plate portion 12, and then use them. Therefore, the operation process is relatively convenient.

[0047] It should be noted that since the opening position of the receiving groove 111 only occupies a part of the front plate portion 11, after the roller skates are fully unfolded, the upper surfaces of the front plate portion 11 and the rear plate portion 12 are flush. The rear plate portion 12 is restricted and there is no tendency to move upward. At the same time, during the sliding process of the roller skates, the human foot sole always exerts a downward pressure on the front plate portion 11 and the rear plate portion 12, and it is not easy to generate a downward concentrated force at the rotating shaft 122. The ground always exerts an upward supporting force on the front plate portion 11 and the rear plate portion 12, and the pressure and the supporting force are balanced, so that the rear plate portion 12 has no tendency to move downward.

[0048] Refer to Figure 2 and Figure 4, a pair of forward-inclined vertical shafts 2 are provided on the lower surface of the front plate portion 11. The two forward-inclined vertical shafts 2 correspond to the two front wheels 112 one by one, and the two forward-inclined vertical shafts 2 are disposed between the two front wheels 112. One end of each forward-inclined vertical shaft 2 is fixedly connected to the lower surface of the front plate portion 11, and the other end of each forward-inclined vertical shaft 2 is inclined downward in the direction close to the rear plate portion 12. A first rotating shaft 1121 is fixedly penetrated through each front wheel 112. Each first rotating shaft 1121 is penetrated through the central axis of the front wheel 112. A follower block 3 is provided between each first rotating shaft 1121 and the corresponding forward-inclined vertical shaft 2. Each follower block 3 is sleeved outside the corresponding forward-inclined vertical shaft 2, and each follower block 3 is rotatably connected to the corresponding forward-inclined vertical shaft 2. Each first rotating shaft 1121 is rotatably inserted into the end of the corresponding follower block 3. A follower rod 4 is further provided between the two front wheels 112. When one side of the front plate portion 11 is pressed to drive one of the front wheels 112 to rotate and change direction, the other front wheel 112 can also change direction following the changed front wheel 112 under the action of the follower rod 4.

[0049] When the slider needs to turn left, a pressure is applied to the left front of the front plate portion 11. The forward-inclined vertical shaft 2 on the left side of the front plate portion 11 is subjected to a downward pressure. Since the distance between the first rotating shaft 1121 and the ground is approximately the radius of the left front wheel 112, the follower block 3 on the left side of the front plate portion 11 will rotate around the central axis of the forward-inclined vertical shaft 2, and the follower block 3 will rotate outward in the direction close to the left rear wheel 123. The rotation of the follower block 3 will drive the first rotating shaft 1121 to rotate, and then drive the left front wheel 112 to rotate outward in the direction close to the left rear wheel 123. The other front wheel 112 rotates leftward together with the rotating front wheel 112 under the action of the follower rod 4, realizing synchronous turning.

[0050] Similarly, when the slider needs to turn right, a pressure is applied to the right front of the front plate portion 11. The forward-inclined vertical shaft 2 on the right side of the front plate portion 11 is subjected to a downward pressure. Therefore, the follower block 3 on the right side of the front plate portion 11 will rotate around the axis of the corresponding forward-inclined vertical shaft 2, and the follower block 3 will rotate outward in the direction close to the right rear wheel 123. The rotation of the follower block 3 will drive the corresponding first rotating shaft 1121 to rotate, and then drive the right front wheel 112 to rotate outward in the direction close to the right rear wheel 123. The other front wheel 112 rotates rightward together with the rotating front wheel 112 under the action of the follower rod 4, realizing synchronous turning.

[0051] Refer to Figure 2 and Figure 4, on one side of each follower block 3 close to the rear plate portion 12, a limit block 31 is fixedly connected. The length direction of each limit block 31 is perpendicular to the axial direction of the corresponding forward-tilt vertical axis 2, and on the side of each limit block 31 away from the forward-tilt vertical axis 2, a first swing groove 311 is inwardly formed. The follower rod 4 is placed between the two limit blocks 31, and the two ends of the follower rod 4 are sequentially placed in the two first swing grooves 311. A rotating shaft 41 is fixedly penetrated through each end of the follower rod 4, and each rotating shaft 41 is rotatably connected to the groove wall of the corresponding first swing groove 311. The axial direction of each rotating shaft 41 is perpendicular to the length direction of the follower rod 4.

[0052] During the process of one of the front wheels 112 being pressed and turning, the pressed follower block 3 rotates, and the corresponding limit block 31 will rotate synchronously with the corresponding follower block 3, thereby driving the movement of the end of the follower rod 4. The length of the follower rod 4 remains unchanged. The movement of one end of the follower rod 4 can drive the other end of the follower rod 4 to move towards the direction of the turning front wheel 112, and then drive the other front wheel 112 to turn through the follower rod 4 and the limit block 31, realizing synchronous turning.

[0053] Refer to Figure 2 , the rear plate portion 12 is further provided with a follower assembly 5 that can cooperate with the turning of the front plate portion 11. When the front plate portion 11 turns, the follower assembly 5 can drive the rear plate portion 12 to adjust accordingly, cooperating with the turning of the front plate portion 11 to make the turning of the roller skates smoother.

[0054] Refer to Figure 2 and Figure 5 , a second rotating shaft 1231 is fixedly penetrated through each rear wheel 123, and each second rotating shaft 1231 is penetrated through the central axis of the corresponding rear wheel 123. The follower assembly 5 includes a mounting seat 51. The mounting seat 51 is fixedly connected to the lower surface of the rear plate portion 12, and a second swing groove 511 is inwardly formed on the lower surface of the mounting seat 51. A steering rod 52 is further provided between the two rear wheels 123. The steering rod 52 is placed in the second swing groove 511. A third rotating shaft 53 is provided on the steering rod 52. The third rotating shaft 53 is fixedly connected to the groove wall of the second swing groove 511. The steering rod 52 is sleeved outside the third rotating shaft 53. The length direction of the steering rod 52 is perpendicular to the length direction of the third rotating shaft 53. The steering rod 52 can rotate around the central axis of the third rotating shaft 53. A pair of elastic follower parts 54 are further provided between the steering rod 52 and the rear plate portion 12. The two follower parts 54 are sequentially placed on the upper surfaces at both ends of the rotating shaft 41. The follower part 54 can be made of an elastic plastic material or a spring. In this embodiment, a spring is selected, and the two springs are fixedly connected between the steering rod 52 and the rear plate portion 12.

[0055] When the skater changes direction, the pressure on the rear plate portion 12 is unbalanced, and the two elastic follower portions 54 will tend to restore the force balance, ensuring the stability of the roller skates during the turning process.

[0056] Referring to Figure 5 , in order to reduce the damage to the steering rod 52 caused by the collision between the steering rod 52 and the second swing groove 511 of the mounting seat 51 during the rotation of the steering rod 52. Preferably, a buffer pad 5111 is fixedly connected to the bottom of the second swing groove 511 to reduce the rigid collision between the steering rod 52 and the mounting seat 51, effectively extending the service life of the steering rod 52.

[0057] Referring to Figure 2 , a manual steering assembly 6 is further provided on the front plate portion 11, and the manual steering assembly 6 enables the skater to manually control the turning of the roller skates.

[0058] Referring to Figure 2 and Figure 6 , the manual steering assembly 6 includes a handle 61 held by the skater. The handle 61 is cylindrical, and an accommodation cavity 611 is formed inside the handle 61. The axial direction of the accommodation cavity 611 is parallel to the axial direction of the handle 61. A rotating column 63 is further provided inside the handle 61. The rotating column 63 is cylindrical, and the axial direction of the rotating column 63 is parallel to the axial direction of the handle 61. The rotating column 63 is placed inside the accommodation cavity 611 and is rotatably connected to the bottom of the accommodation cavity 611.

[0059] Referring to Figure 2 、 Figure 3 、 Figure 6 and Figure 7 , a mounting column 62 is further rotatably connected to the lower surface of the front plate portion 11. One end of the mounting column 62 away from the front plate portion 11 is fixedly connected with an anti - detachment block 621. A left steering wire 64 and a right steering wire 65 are provided between the rotating column 63 and the mounting column 62. Steering limit tubes 68 are fixedly installed on both the front plate portion 11 and the rear plate portion 12, and the steering limit tubes 68 are sleeved outside the left steering wire 64 and the right steering wire 65.

[0060] Referring to Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 and Figure 8, the left steering wire 64 includes a left steering sleeve 641 and a left steering wire core 642. The left steering sleeve 641 is sleeved outside the left steering wire core 642. One end of the outer wall of the left steering sleeve 641 is fixed to the inner wall of the steering limit tube 68, and the other end of the left steering sleeve 641 is fixed to the side of the mounting plate 622 away from the handle 61. One end of the left steering wire core 642 is wound around the mounting post 62 in a rotating manner and then fixedly connected to the follower rod 4. The other end of the left steering wire core 642 passes through the handle 61 in sequence, is wound around the rotating post 63 in a rotating manner and is fixedly connected to the rotating post 63, and the left steering wire core 642 can slidably pass through the mounting plate 622.

[0061] , the right steering wire 65 includes a right steering sleeve 651 and a right steering wire core 652. The right steering sleeve 651 is sleeved outside the right steering wire core 652. One end of the outer wall of the right steering sleeve 651 is fixed to the inner wall of the steering limit tube 68, and the other end of the right steering sleeve 651 is fixed to the side of the mounting plate 622 away from the handle 61. One end of the right steering wire core 652 is wound around the mounting post 62 in a rotating manner and then fixedly connected to the follower rod 4. The other end of the right steering wire core 652 passes through the handle 61 and is wound around the rotating post 63 in a rotating manner and is fixedly connected to the rotating post 63, and the right steering wire core 652 can slidably pass through the mounting plate 622.

[0062] Among them, the left steering wire core 642 is fixedly connected to the follower rod 4 at a position close to the left front wheel 112, and the right steering wire core 652 is fixedly connected to the follower rod 4 at a position close to the right front wheel 112. The winding directions of the left steering wire core 642 and the right steering wire core 652 on the rotating post 63 are opposite, and the winding directions of the left steering wire core 642 and the right steering wire core 652 on the mounting post 62 are also opposite. Refer to Figure 6 and Figure 8 , an outer surface of the handle 61 is fixedly sleeved with a mounting plate 622. An installation ring 66 is fixedly connected outside the rotating post 63. A shift lever 661 is fixedly installed on the installation ring 66, and a moving groove 612 penetrates through the handle 61. The moving groove 612 is distributed along the circumferential direction of the handle 61, and the shift lever 661 is slidably connected to the moving groove 612. A positioning ring 613 is further arranged inside the handle 61. An outer wall of the positioning ring 613 is fixedly connected to a wall of the accommodation cavity 611. There is a gap between an inner wall of the positioning ring 613 and the rotating post 63 that can accommodate the rotation of the rotating post 63, and a return torsion spring 67 is installed between the positioning ring 613 and the handle 61 to facilitate the rebound of the rotating post 63. One end of the return torsion spring 67 is fixedly connected to the rotating post 63, and the other end of the return torsion spring 67 is fixedly connected to a lower surface of the positioning ring 613.

[0063] When the skater makes a left turn, the lever 661 is toggled to move the mounting ring 66. The movement of the mounting ring 66 drives the rotation of the rotating column 63. Under the action of the left-turning sleeve 641, the left-turning wire core 642 on the rotating column 63 is tightened, thereby driving the rotation of the mounting column 62, and enabling the left-turning wire core 642 to drive the follower rod 4 to move towards the right front wheel 112. Since the length of the follower rod 4 is fixed, the limit block 31 and the follower block 3 can rotate outwards around the central axis of the forward-tilting vertical axis 2 of the left front wheel 112 towards the left rear wheel 123, thereby driving the left front wheel 112 to rotate outwards towards the left rear wheel 123 to achieve a left-turn change of direction.

[0064] When the skater makes a right turn, the lever 661 is toggled to move the mounting ring 66. The movement of the mounting ring 66 drives the rotation of the rotating column 63. Under the action of the right-turning sleeve 651, the right-turning wire core 652 on the rotating column 63 is tightened, thereby driving the rotation of the mounting column 62, and enabling the right-turning wire core 652 to drive the follower rod 4 to move towards the left front wheel 112. Since the length of the follower rod 4 is fixed, the limit block 31 and the follower block 3 can rotate outwards around the central axis of the forward-tilting vertical axis 2 corresponding to the right front wheel 112 towards the right rear wheel 123, thereby driving the right front wheel 112 to rotate outwards towards the right rear wheel 123 to achieve a right-turn change of direction.

[0065] Refer to Figure 2 and Figure 8 As shown in [relevant figure numbers], a brake assembly 7 is provided on each rear wheel 123, and a brake wire core 8 is connected to each brake assembly 7. The two brake wire cores 8 converge into a single brake main wire core 81. A brake handle 82 is hinged to the handle 61. Specifically, the brake handle 82 is in an "L" shape, and the brake main wire core 81 is slidably passed through the mounting plate 622 and fixedly connected to the short side wall of the brake handle 82. Triggering the brake handle 82, the brake handle 82 can control the brake assembly 7 through the brake main wire core 81 to achieve braking of the rear wheels 123.

[0066] It should be noted that a brake sleeve 811 is sleeved outside the brake main wire core 81. One end outer wall of the brake sleeve 811 is fixedly connected to the rear plate portion 12, and the other end of the brake sleeve 811 is fixedly connected to the side of the mounting plate 622 away from the brake handle 82.

[0067] Refer to Figure 5, each braking assembly 7 includes a fixing piece 71. Each fixing piece 71 is fixedly connected to the lower surface of the rear plate portion 12. A braking rod 72 is slidably inserted into each fixing piece 71. Each braking rod 72 is perpendicular to the side wall of the corresponding rear wheel 123. A limiting piece 73 is fixedly connected to one end of the corresponding braking rod 72 away from the corresponding rear wheel 123. A braking spring 74 is fixedly connected between each limiting piece 73 and the corresponding fixing piece 71. The braking spring 74 is coaxially arranged with the braking rod 72, and each braking spring 74 is sleeved outside the corresponding braking rod 72.

[0068] Referring to Figure 2 , Figure 3 and Figure 5 , each braking wire core 8 is fixedly connected to one side of the corresponding limiting piece 73 close to the corresponding rear wheel 123. Specifically, a first braking limiting tube 83 is sleeved outside both braking wire cores 8. Both first braking limiting tubes 83 are fixedly installed on the lower surface of the rear plate portion 12. And a second braking limiting tube 84 is sleeved outside the braking main wire core 81. The second braking limiting tube 84 is fixedly installed on the lower surface of the rear plate portion 12. The two first braking limiting tubes 83 and the second braking limiting tube 84 are communicated with each other. The two first braking limiting tubes 83 are distributed in a "V" shape, and one end of each first braking limiting tube 83 close to the rear wheel 123 is the inflection point of the corresponding braking wire core 8.

[0069] When the braking main wire core 81 is tightened, under the action of the braking sleeve 811, the two braking wire cores 8 drive the two limiting pieces 73 to move in a direction away from each other. The movement of the two limiting pieces 73 drives the two braking rods 72 to move in a direction away from each other. The braking spring 74 is compressed, so that the two braking rods 72 are both abutted against the side wall of the corresponding rear wheel 123, thereby realizing the braking of the corresponding rear wheel 123, and the operation process is relatively convenient.

[0070] A friction pad 75 is fixedly connected to one side of each braking rod 72 close to the corresponding rear wheel 123. When braking the rear wheel 123, the friction pad 75 can increase the friction force between the braking rod 72 and the rear wheel 123, making the braking of the roller skates more sensitive.

[0071] Referring to Figure 1 , fixing parts 9 are provided on both the front plate portion 11 and the rear plate portion 12 of the roller skates. The fixing parts 9 are used to fix certain parts of the human body, which is convenient for the skater to control. It can either fix the skater's legs or the skater's feet. The fixing part 9 can be set as a magic tape or a strap. Specifically, in this embodiment, the fixing part 9 is set as a magic tape, which is convenient to wear and disassemble.

[0072] A soft supporting material with friction is provided on the lower surface of the front plate portion 11 on the side away from the rear plate portion 12. The soft supporting material can be a rubber pad with friction. When the front section of the front plate portion 11 contacts the ground, the friction between the front plate portion 11 and the ground is increased, facilitating the skater to slide by means of the frictional reaction force. At the same time, the skater can also slow down the roller skates by touching the ground with a part of the front plate portion 11 with the soft supporting material.

[0073] Referring to Figure 1 , a retaining cover 14 for covering the corresponding wheel is fixed outside each front wheel 112 and each rear wheel 123, and the lower surface of each retaining cover 14 is placed at the middle part of the corresponding wheel, reducing the influence on the turning of the roller skates. A surrounding portion 13 for shielding the bottom structure of the front plate portion 11 and the rear plate portion 12 is fixedly surrounded on the outer walls of the front plate portion 11, the rear plate portion 12 and the retaining cover 14, enhancing the aesthetics of the roller skates. The surrounding portion 13 is preferably made of a flexible material, such as a cloth material, reducing the influence of the setting of the surrounding portion 13 on the folding of the roller skates.

[0074] The implementation principle of a roller skate in an embodiment of the present application is as follows: When the skater needs to turn, the skater can turn by applying pressure to the front plate portion 11, and at the same time, the skater can also rotate the rotating column 63 by moving the lever 661 to control the tightening or loosening of the left steering wire 64 and the right steering wire 65; when braking is required, the skater can squeeze the brake handle 82, causing the brake main wire core 81 to tighten, thereby driving the friction pads 75 on the two brake levers 72 to abut against the corresponding rear wheels 123 to achieve braking of the rear wheels 123; when the roller skates are not in use, the rear plate portion 12 is rotated towards the direction close to the lower surface of the front plate portion 11 to fold the roller skates.

[0075] In the present application, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A roller skate, comprising a shoe board (1), characterized in that: The shoe plate (1) includes a front plate portion (11) and a rear plate portion (12) connected to the front plate portion (11). A connecting block (121) is fixedly connected to the rear plate portion (12). A receiving groove (111) for the connecting block (121) to rotate is formed inwardly on one side of the front plate portion (11) close to the rear plate portion (12). A rotating shaft (122) rotatably connected to the front plate portion (11) is fixedly inserted through the connecting block (121). Two front wheels (112) are installed at the bottom of the front plate portion (11), and two rear wheels (123) are installed at the bottom of the rear plate portion (12). Fixing portions (9) for fixing human body parts are provided on both the front plate portion (11) and the rear plate portion (12). A pair of forward-tilting vertical shafts (2) corresponding to the front wheels (112) one by one are fixedly connected to the lower surface of the front plate portion (11). One end of each forward-tilting vertical shaft (2) away from the front plate portion (11) is inclined downward toward the side close to the rear plate portion (12). A follower block (3) rotatably connected to the forward-tilting vertical shaft (2) is sleeved outside each forward-tilting vertical shaft (2). A first rotating shaft (1121) is fixedly inserted through each front wheel (112), and each first rotating shaft (1121) is rotatably inserted into the end of the corresponding follower block (3). A follower rod (4) is further provided between the two follower blocks (3). When one of the front wheels (112) turns, the follower rod (4) can drive the other front wheel (112) to turn synchronously with the turning front wheel (112). A limiting block (31) is fixedly provided on each follower block (3), and a first swinging groove (311) is formed inwardly on one side of each limiting block (31) away from the corresponding forward-tilting vertical shaft (2). The follower rod (4) is placed between the two first swinging grooves (311), and rotating shafts (41) rotatably connected to the groove walls of the corresponding first swinging grooves (311) are fixedly inserted through both ends of the follower rod (4). The rear plate portion (12) is further provided with a follower assembly (5) capable of cooperating with the front plate portion (11) to turn. A soft support material with friction is provided on the lower surface of the end of the front plate portion (11) away from the rear plate portion (12).

2. The roller skates according to claim 1, characterized in that: A second rotating shaft (1231) is fixedly penetrated through each of the rear wheels (123). The follow-up assembly (5) includes a steering rod (52) disposed between the two second rotating shafts (1231) and a mounting seat (51) fixedly disposed on the lower surface of the rear plate portion (12). A second swing groove (511) capable of accommodating the rotation of the steering rod (52) is inwardly opened on the lower surface of the mounting seat (51). A third rotating shaft (53) penetrates through the midpoint of the steering rod (52). The third rotating shaft (53) is fixedly disposed on the groove wall of the second swing groove (511), and the steering rod (52) is rotatably connected to the outside of the third rotating shaft (53). An elastic follow-up portion (54) is fixedly disposed between the steering rod (52) and the rear plate portion (12).

3. A roller skate according to claim 1 or 2, characterized in that: The front plate portion (11) is provided with a manual steering assembly (6).

4. A roller skate according to claim 3, wherein: The manual steering assembly (6) includes: a handle (61) having an accommodation cavity (611) opened therein; a rotating column (63) rotatably connected to the cavity wall of the accommodation cavity (611); a mounting column (62) rotatably connected to the lower surface of the front plate portion (11); a left steering wire (64) including a left steering sleeve (641) and a left steering wire core (642) inserted into the left steering sleeve (641). The left steering sleeve (641) is fixed between a steering limit tube (68) and a mounting plate (622). One end of the left steering wire core (642) is rotatably wound around the mounting column (62) and then fixed to a position of the follow-up rod (4) close to the left front wheel (112). The other end of the left steering wire core (642) passes through the handle (61) and then is rotatably wound around the outside of the rotating column (63) and fixedly connected to the rotating column (63); a right steering wire (65) including a right steering sleeve (651) and a right steering wire core (652) inserted into the right steering sleeve (651). The right steering sleeve (651) is fixed between the steering limit tube (68) and the mounting plate (622). One end of the right steering wire core (652) is rotatably wound around the mounting column (62) and then fixed to a position of the follow-up rod (4) close to the right front wheel (112). The other end of the right steering wire core (652) passes through the handle (61) and then is rotatably wound around the outside of the rotating column (63) and fixedly connected to the rotating column (63); Both the left steering wire core (642) and the right steering wire core (652) can slidably pass through the mounting plate (622), and the winding directions of the left steering wire core (642) and the right steering wire core (652) on the rotating column (63) are opposite, and the winding directions of the left steering wire core (642) and the right steering wire core (652) on the mounting column (62) are opposite.

5. A roller skate according to claim 4, characterized in that: A brake assembly (7) is provided on each of the rear wheels (123). A brake wire core (8) is connected to each brake assembly (7). The two brake wire cores (8) converge into a brake main wire core (81). A brake sleeve (811) fixed between the rear plate portion (12) and the mounting plate (622) is sleeved outside the brake main wire core (81). A brake lever (82) for fixing the brake main wire core (81) is hinged on the handle (61). When the brake lever (82) is triggered, the brake lever (82) can control the brake assembly (7) through the brake main wire core (81) to brake the rear wheel (123).

6. The roller skate according to claim 5, wherein: Each brake assembly (7) includes a fixed piece (71) fixedly arranged on the lower surface of the rear plate portion (12). A brake rod (72) capable of abutting against the corresponding rear wheel (123) is slidably inserted into each fixed piece (71). A limiting piece (73) is fixedly arranged at the end of each brake rod (72) away from the rear wheel (123). A brake spring (74) sleeved outside the brake rod (72) is fixedly arranged between each fixed piece (71) and the corresponding limiting piece (73). Each brake wire core (8) is fixedly arranged on the side of the corresponding limiting piece (73) close to the corresponding rear wheel (123). A first brake limiting tube (83) fixed on the lower surface of the rear plate portion (12) is sleeved outside the two brake wire cores (8). The two first brake limiting tubes (83) are distributed in an "eight" shape, and each brake wire core (8) has an inflection point at the end of the corresponding first brake limiting tube (83) close to the corresponding rear wheel (123).

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