A three-in-one scooter

Abstract

This invention relates to scooter technology to address the problems of scooter functionality limitations, resulting in a poor user experience, the need to purchase additional equipment leading to financial expenses, and the slippage caused by mud on the scooter wheels causing users to fall and disturbing pedestrians. Specifically, it is a three-in-one scooter comprising a scooter base, wheel axles, wheels, and a wheel support frame. This invention allows the scooter to transform into two different types of sports equipment through a folding board and a supporting outer frame, supported by the folding support frame and a telescopic rod. This allows users to experience multiple sports with a single device. A cleaning brush removes mud from the outside of the wheels, preventing slippage and contributing to indoor soiling. An electrically powered spring adjusts the position of a limit lock, enabling rapid braking of the scooter when it detaches from the user, as the limit lock engages with the outside of the wheel axle.

Description

Technical Field

[0001] The invention relates to scooter technology, in particular to a three-in-one scooter. Background Art

[0002] Skateboarding is one of the board sports. It is a skill sport in which athletes step on sliding equipment and perform various complex sliding, jumping, spinning, flipping and other difficult movements on different terrains, ground and specific facilities to the melody of music.

[0003] In the prior art, in order to cultivate children's sports ability, it is necessary to buy a plurality of corresponding sports equipment for the children. The purchase of a plurality of sports equipment causes a large economic expense to the user, and the idle sports equipment after purchase occupies the placement space in the room, causing inconvenience to the user; when the skateboard is in use, the concave structure on the outer side of the roller is easily filled with mud at the muddy position, making the outer side of the roller smooth and reducing the friction between the roller and the ground, so that the skateboard is easy to slip when the user is in use, causing the user to make mistakes in controlling the skateboard and slip, causing the user's body to collide with the ground and cause injuries, and the mud is embedded in the inner side of the concave structure of the roller, and it is easy to move with the movement of the skateboard. After the skateboard is brought indoors, it is easy to cause dirt in the room; when the user slips while using the skateboard, the skateboard will continue to slide under the action of its own inertia. After the fast-sliding skateboard slides to the feet of passers-by walking nearby, the passers-by are frightened by the sudden situation and cannot dodge in time, and step on the skateboard, causing the passers-by to walk unsteadily and fall;

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] The purpose of the present invention is to transform the other two sports devices into a foldable skateboard and a supporting outer frame under the action of a foldable support frame and a telescopic rod respectively, so that the user can use one device to experience multiple devices, clean the sludge on the outside of the roller by a cleaning brush, so that the roller is not easy to slip and prevent indoor dirt, and adjust the position of the limit card by an energized spring so that when the skateboard is separated from the user, the limit card can be clamped on the outside of the roller shaft to quickly brake the skateboard, thereby solving the problems of a single function of the skateboard, resulting in poor user experience, the need to purchase other equipment and incurring economic expenses, the skateboard roller attached to sludge and slipping causing the user to fall, and the skateboard causing trouble to nearby pedestrians after the fall, and a three-in-one scooter is proposed.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A three-in-one scooter, comprising a scooter bottom plate, a roller shaft, a roller and a roller support frame, wherein the roller support frames are connected to both sides of the lower surface of the scooter bottom plate, the rollers are rotatably connected to both sides of the outer side wall of the roller support frame through a rotating shaft, the roller shaft is rotatably connected to the inner side wall of the roller support frame corresponding to the position of the roller, and a superposition mechanism is provided on the upper surface of the scooter bottom plate;

[0008] The folding mechanism comprises a skateboard pedal, a skateboard folding plate is provided on the upper surface of the scooter base plate near the inner side of the skateboard pedal, the upper surface of the scooter base plate is rotatably connected to a supporting outer frame near the outer side of the skateboard pedal, a telescopic mounting groove is provided on the upper surface of the scooter base plate corresponding to the supporting outer frame, a rotating seat is connected to one side of the lower surface inside the telescopic mounting groove, a telescopic rod is rotatably connected to the inner side wall of the rotating seat, a plurality of evenly distributed limit blocks are connected to the upper surface of the scooter base plate and the lower surface of the skateboard folding plate, a lower supporting frame is rotatably connected to the upper surface of the scooter base plate near the position of the limit block, a folding supporting frame is rotatably connected to the upper end of the lower supporting frame, and an upper supporting frame is rotatably connected to the upper inner side wall of the folding supporting frame.

[0009] As a preferred embodiment of the present invention, a cleaning mechanism is provided on both sides of the outer side wall of the roller support frame;

[0010] The dirt cleaning mechanism includes a protective shell, a connecting frame is integrally formed on a side of the lower surface of the protective shell away from the roller support frame, through holes are opened on both sides of the outer wall of the protective shell, a cleaning brush is rotatably connected to the middle position of the inner wall of the through hole through a rotating shaft, a transmission cavity is opened at the middle position inside the connecting frame, an auxiliary wheel is connected to the position of the rotating shaft connected to the inner wall of the transmission cavity corresponding to the cleaning brush, a double gear ring is arranged at the position of the roller shaft inside the transmission cavity, and transmission wheels are rotatably connected to the two sides of the transmission cavity near the double gear ring through a rotating shaft, and the auxiliary wheel and the transmission wheel are connected by a cleaning transmission belt.

[0011] As a preferred embodiment of the present invention, an anti-skid mechanism is provided on the upper surface of the scooter bottom plate corresponding to the position of the skateboard pedal;

[0012] The anti-skid mechanism comprises a telescopic slot, a plurality of evenly distributed buffer springs are connected to the lower surface of the telescopic slot, metal shrapnel groups are connected to both sides of the lower surface inside the telescopic slot, a plug plate is connected to the lower surface of the skateboard stepping pedal at a position corresponding to the metal shrapnel group, a battery box is connected to the lower surface of the scooter bottom plate near the roller shaft, a power generation box is connected to the side of the lower surface of the scooter bottom plate near the battery box, a gear column is connected to one side of the outer wall of the roller shaft, a limit box is connected to the lower surface of the scooter bottom plate at a position corresponding to the gear column, a limit card is slidably connected to the lower surface of the limit box, a driving wheel is connected to the outer wall of the roller shaft corresponding to the power generation box, and a limit transmission belt is connected to the outer wall of the driving wheel.

[0013] As a preferred embodiment of the present invention, an engaging tooth groove is provided on the outer wall of the roller shaft at a position corresponding to the double tooth ring, and an engaging tooth ring is integrally formed on the outer wall of the transmission wheel at a position corresponding to the double tooth ring.

[0014] As a preferred embodiment of the present invention, an energized spring is connected to the position of the limit card on the inner upper surface of the limit box, and a sliding hole is provided on the lower surface of the limit box, corresponding to the position of the limit card.

[0015] As a preferred embodiment of the present invention, a connection hole is opened on the outer wall of the generator box corresponding to the position of the limiting transmission belt, and the height of the storage box and the generator box is smaller than the distance between the roller shaft and the bottom plate of the scooter.

[0016] As a preferred embodiment of the present invention, the method for using the three-in-one scooter comprises the following steps:

[0017] Step 1: When the user is using the skateboard, the skateboard can be changed in shape according to the needs. In the normal state, it is in the skateboard shape. The skateboard shape can be converted into the scooter shape by rotating the supporting outer frame on one side of the upper surface of the scooter bottom plate. During the shape transformation process, the telescopic rod can be adaptively changed in length according to the change in the rotation angle between the supporting outer frame and the scooter bottom plate, and the supporting outer frame can be supported and the angle can be limited by the telescopic rod after the angle is adjusted. When the scooter shape is transformed into the pedestrian shape, the folding plate of the skateboard can be pulled out by the folding support frame under the support of the lower support frame to make the folding plate of the skateboard rise in height. After rising to the corresponding height, the lower end of the folding support frame is limited by being clamped between a number of limit blocks on the upper surface of the scooter bottom plate, and one side of the folding plate of the skateboard is supported by the upper support frame connected to the inner side wall of the folding support frame by rotation, so that the folding plate of the skateboard is kept in a state of being level with the scooter bottom plate;

[0018] Step 2: When the three-in-one scooter is in use, the double-toothed ring inside the transmission cavity is sleeved on the outer wall of the roller shaft, and the convex teeth on the inner side of the double-toothed ring are engaged with the interlocking tooth grooves on the outer wall of the roller shaft, so that the double-toothed ring can be driven to rotate during the rotation of the roller shaft, and the convex teeth on the outer side of the double-toothed ring are engaged with the interlocking toothed ring on the outer side of the transmission wheel. The auxiliary wheel and the transmission wheel are connected through the cleaning transmission belt, so that the double-toothed ring can drive the cleaning brush to rotate, and the cleaning brush contacts the outer wall of the roller during the rotation to remove the sludge adhering to the outer wall of the roller;

[0019] Step three: the two metal spring groups on the inner side of the expansion slot are connected in parallel to the circuit where the limit box and the battery box are located. When the skateboard is stepped on the pedal and is subjected to external force, the plug-in plate is pressed down and inserted into the middle position of the metal spring group, so that the metal spring group makes the circuit conductive due to the insertion of the plug-in plate. The current stored in the battery box supplies electricity to the power-on spring inside the limit box. The power-on spring is energized and contracts, driving the limit card to retract into the limit box without restricting the normal rotation of the roller shaft. When the skateboard is stepped on the pedal, the buffer spring is compressed and contracts. During the rotation of the roller shaft, the limit transmission belt drives the rotating shaft of the power generation equipment inside the generator box to rotate for power generation operation. The current generated inside the generator box is transmitted to the battery box for storage.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The folding board of the skateboard and the supporting outer frame are used to transform the other two sports equipment under the action of the folding support frame and the telescopic rod, so that the user can use one device to experience multiple devices without incurring large economic expenses and space occupation due to the purchase of multiple devices;

[0022] 2. The cleaning brush on the outside of the protective shell is driven to rotate during the rotation of the roller shaft of the skateboard to clean the sludge on the outside of the roller, so that the roller is not easy to slip, reducing the occurrence of slipping caused by the user's error in controlling the skateboard due to the slipping of the skateboard, and preventing the sludge from being brought into the room with the skateboard, causing indoor dirt;

[0023] 3. The generator box is driven to generate electricity during the use of the skateboard. The generated electricity is supplied to the energized spring in the limit box to adjust the position of the limit card. When the skateboard is separated from the user, the limit card can be clamped on the outside of the roller shaft to quickly brake the skateboard, preventing the high-speed sliding skateboard from causing trouble to surrounding personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0025] Figure 1 It is the main structure diagram of the present invention;

[0026] Figure 2 It is a structural diagram of a scooter of the present invention;

[0027] Figure 3 A structural diagram of a walker of the present invention;

[0028] Figure 4 For the present invention Figure 3 The upward structural diagram of

[0029] Figure 5 It is a structural diagram of the cleaning mechanism of the present invention;

[0030] Figure 6 It is a structural diagram of the protective shell of the present invention;

[0031] Figure 7 It is a structural diagram of the anti-skid mechanism of the present invention;

[0032] Figure 8 For the present invention Figure 7 A magnified structural diagram of part A;

[0033] Fig. 9 For the present invention Figure 7 The upward structural diagram of

[0034] Fig.10 For the present invention Fig. 9 Enlarged structural diagram of part B.

[0035] In the figure: 1, scooter bottom plate; 2, folding mechanism; 21, skateboard pedal; 22, skateboard folding plate; 23, supporting outer frame; 24, telescopic rod; 25, rotating seat; 26, telescopic mounting slot; 27, limit block; 28, folding support frame; 29, lower support frame; 210, upper support frame; 3, cleaning mechanism; 31, protective shell; 32, connecting frame; 33, cleaning brush; 34, through hole; 35, auxiliary rotating wheel ; 36. Double gear ring; 37. Transmission wheel; 38. Cleaning transmission belt; 39. Transmission cavity; 4. Anti-skid mechanism; 41. Telescopic slot; 42. Buffer spring; 43. Metal spring group; 44. Insert plate; 45. Storage box; 46. Generator box; 47. Limit box; 48. Limit card; 49. Gear column; 410. Driving wheel; 411. Limit transmission belt; 5. Roller shaft; 6. Roller; 7. Roller support frame. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] See also Figure 1-4 As shown, a three-in-one scooter comprises a scooter bottom plate 1, a roller shaft 5, a roller 6 and a roller support frame 7. The roller support frames 7 are connected to both sides of the lower surface of the scooter bottom plate 1, and the rollers 6 are rotatably connected to both sides of the outer wall of the roller support frame 7 through a rotating shaft, and the roller shaft 5 is rotatably connected to the inner wall of the roller support frame 7 at the position corresponding to the roller 6;

[0039] The upper surface of the scooter bottom plate 1 is provided with a folding mechanism 2, which includes a skateboard pedal 21. A skateboard folding plate 22 is provided on the upper surface of the scooter bottom plate 1 near the inner side of the skateboard pedal 21. A hole of the same shape and size as the skateboard folding plate 22 is provided inside the skateboard pedal 21 at a position corresponding to the skateboard folding plate 22. A support outer frame 23 is rotatably connected to the outer side of the skateboard pedal 21 on the upper surface of the scooter bottom plate 1. A hole of the same shape and size as the skateboard pedal 21 is provided inside the support outer frame 23 at a position corresponding to the skateboard pedal 21. A telescopic mounting groove 26 is provided on the upper surface of the scooter bottom plate 1 at a position corresponding to the support outer frame 23. A rotating seat 25 is connected to one side of the lower surface of the telescopic mounting groove 26. A telescopic mounting groove 26 is also provided on the lower surface of the support outer frame 23 at a position corresponding to the telescopic mounting groove 26 on the scooter bottom plate 1. The rotating seat 2 The inner wall is rotatably connected with a telescopic rod 24, and the two ends of the telescopic rod 24 are respectively connected to the rotating seat 25 on the inner side of the telescopic mounting groove 26 on the scooter bottom plate 1 and the rotating seat 25 on the inner side of the telescopic mounting groove 26 on the supporting outer frame 23. The upper surface of the scooter bottom plate 1 and the lower surface of the folding plate 22 of the skateboard are both connected with a number of evenly distributed limit blocks 27. The limit blocks 27 on the scooter bottom plate 1 limit the position of the lower end of the folding support frame 28 and support the folding support frame 28. The limit blocks 27 on the lower surface of the folding plate 22 of the skateboard limit the position of the upper end of the upper support frame 210 and support the folding plate 22 of the skateboard. The upper surface of the scooter bottom plate 1 is rotatably connected with a lower support frame 29 near the position of the limit blocks 27. The upper end of the lower support frame 29 is rotatably connected with the folding support frame 28, and the upper support frame 210 is rotatably connected above the inner wall of the folding support frame 28.

[0040] In the prior art, in order to develop children's sports ability, it is necessary to buy a plurality of corresponding sports equipment for the children. The purchase of a plurality of sports equipment causes a large economic expense to the user, and the idle sports equipment after purchase occupies the placement space in the room, causing inconvenience to the user;

[0041] The user can change the shape of the skateboard according to the needs. In the normal state, it is in the skateboard shape. The skateboard shape can be converted into the scooter shape by rotating the supporting outer frame 23 on one side of the upper surface of the scooter bottom plate 1. During the shape transformation process, the telescopic rod 24 can be adaptively changed in length according to the change in the rotation angle between the supporting outer frame 23 and the scooter bottom plate 1. During the change process, the rotating seats 25 at both ends of the telescopic rod 24 are adaptively adjusted to the angle change, and after the supporting outer frame 23 is adjusted to the angle, the support and angle are limited by the length of the telescopic rod 24. When the scooter shape is transformed into the pedestrian shape, the folding plate 22 of the skateboard can be folded at the bottom by the folding support frame 28 The support and rotation of the support frame 29 causes the folding plate 22 of the skateboard to rise in height. After rising to the corresponding height, the lower end of the folding support frame 28 is limited by being clamped between a plurality of limit blocks 27 on the upper surface of the scooter bottom plate 1. One side of the folding plate 22 of the skateboard is supported by the upper support frame 210 connected to the inner side wall of the folding support frame 28 by rotation, so that the folding plate 22 of the skateboard is kept in a horizontal state with the scooter bottom plate 1, so that the skateboard can complete the transformation of the three sports equipment. The user can save the economic expenditure of purchasing redundant sports equipment by purchasing the skateboard, and the problem of corresponding sports equipment occupying more space can be reduced when the skateboard is in use.

[0042] Embodiment 2:

[0043] See also Figure 5-6 As shown, a cleaning mechanism 3 is arranged on both sides of the outer wall of the roller support frame 7, and the cleaning mechanism 3 includes a protective shell 31. The protective shell 31 is an arc-shaped structure and is on the same axis as the center of the roller 6. A connecting frame 32 is integrally formed on the side of the lower surface of the protective shell 31 away from the roller support frame 7. Through holes 34 are opened on both sides of the outer wall of the protective shell 31, and combing teeth are connected on both sides of the inner wall of the through hole 34, so that when the cleaning brush 33 rotates to the combing tooth position, the sludge adhered to the cleaning brush 33 can be scraped off, and will not splash to the outside of the protective shell 31 with the rotation of the cleaning brush 33. The middle position of the inner wall of the through hole 34 is connected by a rotating shaft A cleaning brush 33 is rotatably connected, a transmission chamber 39 is provided at the middle position inside the connecting frame 32, an auxiliary wheel 35 is connected at the position of the rotating shaft connected to the cleaning brush 33 on the inner wall of the transmission chamber 39, a double tooth ring 36 is provided at the position of the roller shaft 5 inside the transmission chamber 39, an engaging tooth groove is provided at the position of the double tooth ring 36 on the outer wall of the roller shaft 5, a transmission wheel 37 is rotatably connected to the two sides of the transmission chamber 39 near the double tooth ring 36 through a rotating shaft, an engaging tooth ring is integrally formed at the position of the double tooth ring 36 on the outer wall of the transmission wheel 37, and the auxiliary wheel 35 and the transmission wheel 37 are connected through a cleaning transmission belt 38.

[0044] In the prior art, when the skateboard is in use, the concave structure on the outer side of the roller 6 is easily filled with mud at the muddy position, making the outer side of the roller 6 smooth and reducing the friction between the roller 6 and the ground, so that the skateboard is easy to slip when the user makes mistakes in controlling the skateboard, causing the user's body to collide with the ground and cause injuries. In addition, the mud is embedded in the inner side of the concave structure of the roller 6 and is easy to move with the movement of the skateboard. After the skateboard is brought indoors, it is easy to cause dirt in the room.

[0045] The double-toothed ring 36 inside the transmission cavity 39 is sleeved on the outer wall of the roller shaft 5, and the convex teeth inside the double-toothed ring 36 are engaged with the engaging tooth grooves on the outer wall of the roller shaft 5, so that the double-toothed ring 36 can be driven to rotate during the rotation of the roller shaft 5, and the convex teeth on the outer side of the double-toothed ring 36 are engaged with the engaging toothed ring on the outer side of the transmission wheel 37. The auxiliary wheel 35 and the transmission wheel 37 are connected through the cleaning transmission belt 38, so that the double-toothed ring 36 can drive the cleaning brush 33 to rotate. The cleaning brush 33 contacts the outer wall of the roller 6 during the rotation process, and the cleaning brush adhered to the outer wall of the roller 6 The sludge on the roller 6 is removed, and the removed sludge part falls directly and is separated from the roller 6 and the cleaning brush 33, and part of the sludge adheres to the cleaning brush 33 and is scraped off and separated from the cleaning brush 33 when the cleaning brush 33 rotates to the combing tooth position on the through hole 34. Under the action of the cleaning brush 33, the roller 6 has less sludge attached to the inner side of the recessed structure on the outer side of the roller 6, and the friction between the roller 6 and the ground is reduced. The user is less likely to slip due to the slipping of the roller 6, and the damage to the body is reduced. After the sludge is cleaned, it will not cause dirt in the room.

[0046] Embodiment 3:

[0047] See also Figure 7-10As shown, an anti-skid mechanism 4 is provided at a position on the upper surface of the scooter bottom plate 1 corresponding to the position of the skateboard stepping pedal 21, and the anti-skid mechanism 4 includes a telescopic groove 41, and a plurality of evenly distributed buffer springs 42 are connected to the lower surface of the telescopic groove 41. Both sides of the lower surface inside the telescopic groove 41 are connected with metal spring groups 43, each group is composed of two metal springs, and the distance between the two metal springs is less than the thickness of the plug plate 44, and the two do not contact each other, so that after the plug plate 44 is inserted, the two metal springs of the metal spring group 43 are connected through the plug plate 44, and the lower surface of the skateboard stepping pedal 21 is connected with a plug plate 44 corresponding to the position of the metal spring group 43, and the plug plate 44 is a conductive material component, and a battery box 45 is connected to the lower surface of the scooter bottom plate 1 near the roller shaft 5, and a power generation box 46 is connected to the side of the lower surface of the scooter bottom plate 1 near the power storage box 45, and the outer wall of the power generation box 46 corresponds to A connection hole is provided at the position of the limit transmission belt 411, and the limit transmission belt 411 is connected to the rotating shaft of the power generation equipment inside the power generation box 46 through the connection hole. The height of the power storage box 45 and the power generation box 46 is smaller than the spacing between the roller shaft 5 and the bottom plate 1 of the scooter, so that when the scooter is in use, the power storage box 45 and the power generation box 46 will not generate friction with the ground. A gear column 49 is connected to one side of the outer wall of the roller shaft 5, and a limit box 47 is connected at the position of the gear column 49 corresponding to the lower surface of the bottom plate 1 of the scooter, and an energized spring is connected at the position of the limit card 48 corresponding to the upper surface of the limit box 47. A sliding hole is provided on the lower surface of the limit box 47 corresponding to the position of the limit card 48, and the lower surface of the limit box 47 is slidably connected to the limit card 48. A driving wheel 410 is connected at the outer wall of the roller shaft 5 corresponding to the power generation box 46, and the outer wall of the driving wheel 410 is connected to the limit transmission belt 411;

[0048] In the prior art, when a user slips while using a skateboard, the skateboard will continue to slide due to its own inertia. After the fast sliding skateboard slides to the feet of passers-by nearby, the passers-by are frightened by the sudden situation and cannot dodge in time. They step on the skateboard, causing the passers-by to walk unsteadily and fall.

[0049] The two metal spring groups 43 inside the telescopic groove 41 are connected in parallel to the circuit where the limit box 47 and the power storage box 45 are located, so that both sides of the skateboard can realize the conduction of the circuit when stepped on. During the rotation of the roller shaft 5, the limit transmission belt 411 drives the shaft of the power generation equipment inside the power generation box 46 to rotate for power generation operation. The current generated inside the power generation box 46 is transmitted to the power storage box 45 for storage. When the skateboard is stepped on by the pedal 21 and subjected to external force, it drives the plug plate 44 to press down and insert into the middle position of the metal spring group 43, so that the metal spring group 43 is connected to the circuit due to the insertion of the plug plate 44, and the current stored in the power storage box 45 is applied to the limit box 47. The internal energized spring supplies electricity, and the energized spring contracts when energized, driving the limit card 48 to retract into the limit box 47 without restricting the normal rotation of the roller shaft 5. When the skateboard is pressed down on the pedal 21, the buffer spring 42 is compressed and contracts. When it is not compressed, the contracted buffer spring 42 is reset to separate the plug plate 44 from the metal spring sheet group 43, disconnecting the circuit, and the energized spring breakpoint pops out to push the limit card 48 to pop out from the limit box 47 to restrict the gear column 49, so that the roller shaft 5 cannot rotate. The high-speed sliding skateboard stops sliding due to the large friction between the skateboard and the ground, and the skateboard will not suddenly appear under the feet of passers-by, causing the passers-by to walk unsteadily and fall.

[0050] When the present invention is in use, the user can change the shape of the skateboard according to needs. In the normal state, it is in the skateboard shape, and the skateboard shape can be converted into a scooter shape by rotating the supporting outer frame 23 on one side of the upper surface of the scooter bottom plate 1. During the shape transformation process, the telescopic rod 24 can be adaptively changed in length according to the change in the rotation angle between the supporting outer frame 23 and the scooter bottom plate 1. During the change process, the rotating seats 25 at both ends of the telescopic rod 24 are adaptively adjusted to the angle change, and after the supporting outer frame 23 is adjusted to a good angle, the support and angle are limited by limiting the length of the telescopic rod 24. The scooter When the form is transformed into the pedestrian form, the folding plate 22 of the skateboard can be pulled out through the folding support frame 28 under the support and rotation of the lower support frame 29, so that the folding plate 22 of the skateboard is raised in height. After rising to the corresponding height, the lower end of the folding support frame 28 is limited by being clamped between a plurality of limit blocks 27 on the upper surface of the scooter bottom plate 1, and one side of the folding plate 22 of the skateboard is supported by the upper support frame 210 connected to the upper inner wall of the folding support frame 28 by rotation, so that the folding plate 22 of the skateboard is kept in a state of being horizontal with the scooter bottom plate 1, so that the skateboard can complete the transformation of the three sports equipment;

[0051] The double-toothed ring 36 inside the transmission cavity 39 is sleeved on the outer wall of the roller shaft 5, and the convex teeth inside the double-toothed ring 36 are engaged with the engaging tooth grooves on the outer wall of the roller shaft 5, so that the double-toothed ring 36 can be driven to rotate during the rotation of the roller shaft 5, and the convex teeth on the outer side of the double-toothed ring 36 are engaged with the engaging toothed ring on the outer side of the transmission wheel 37. The auxiliary wheel 35 and the transmission wheel 37 are connected through the cleaning transmission belt 38, so that the double-toothed ring 36 can drive the cleaning brush 33 to rotate. The cleaning brush 33 contacts the outer wall of the roller 6 during the rotation process, and the cleaning brush adhered to the outer wall of the roller 6 The sludge on the roller 6 is removed, and the removed sludge part directly falls and is separated from the roller 6 and the cleaning brush 33, and part of the sludge adheres to the cleaning brush 33 and is scraped off and separated from the cleaning brush 33 when the cleaning brush 33 rotates to the combing teeth position on the through hole 34. Under the action of the cleaning brush 33, the roller 6 has less sludge attached to the inner side of the concave structure outside the roller 6, and the friction between the roller 6 and the ground is reduced. The user is less likely to slip due to the slipping of the roller 6, and the damage to the body is reduced. After the sludge is cleaned, it will not cause dirt in the room.

[0052] The two metal spring groups 43 inside the telescopic groove 41 are connected in parallel to the circuit where the limit box 47 and the power storage box 45 are located, so that both sides of the skateboard can realize the conduction of the circuit when stepped on. During the rotation of the roller shaft 5, the limit transmission belt 411 drives the shaft of the power generation equipment inside the power generation box 46 to rotate for power generation operation. The current generated inside the power generation box 46 is transmitted to the power storage box 45 for storage. When the skateboard is stepped on by the pedal 21 and subjected to external force, it drives the plug plate 44 to press down and insert into the middle position of the metal spring group 43, so that the metal spring group 43 is connected to the circuit due to the insertion of the plug plate 44, and the current stored in the power storage box 45 is applied to the limit box 47. The internal energized spring supplies electricity, and the energized spring contracts when energized, driving the limit card 48 to retract into the limit box 47 without restricting the normal rotation of the roller shaft 5. When the skateboard is pressed down on the pedal 21, the buffer spring 42 is compressed and contracts. When it is not compressed, the contracted buffer spring 42 is reset to separate the plug plate 44 from the metal spring sheet group 43, disconnecting the circuit, and the energized spring breakpoint pops out to push the limit card 48 to pop out from the limit box 47 to restrict the gear column 49, so that the roller shaft 5 cannot rotate. The high-speed sliding skateboard stops sliding due to the large friction between the skateboard and the ground, and the skateboard will not suddenly appear under the feet of passers-by, causing the passers-by to walk unsteadily and fall.

[0053] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A three-in-one scooter, comprising a scooter base plate (1), a roller shaft (5), a roller (6) and a roller support frame (7), wherein the roller support frames (7) are connected to both sides of the lower surface of the scooter base plate (1), the rollers (6) are rotatably connected to both sides of the outer wall of the roller support frame (7) via a rotating shaft, and the roller shaft (5) is rotatably connected to the inner wall of the roller support frame (7) at a position corresponding to the roller (6), characterized in that: The upper surface of the scooter bottom plate (1) is provided with a folding mechanism (2); The folding mechanism (2) comprises a skateboard pedal (21), a skateboard folding plate (22) is provided on the upper surface of the scooter base plate (1) near the inner side of the skateboard pedal (21), a support outer frame (23) is rotatably connected to the upper surface of the scooter base plate (1) near the outer side of the skateboard pedal (21), a telescopic mounting groove (26) is provided on the upper surface of the scooter base plate (1) at a position corresponding to the support outer frame (23), and a rotating seat (25) is connected to one side of the lower surface of the telescopic mounting groove (26). ), the inner side wall of the rotating seat (25) is rotatably connected to a telescopic rod (24), the upper surface of the scooter bottom plate (1) and the lower surface of the folding plate (22) of the scooter are both connected to a plurality of evenly distributed limit blocks (27), the upper surface of the scooter bottom plate (1) near the limit blocks (27) is rotatably connected to a lower support frame (29), the upper end of the lower support frame (29) is rotatably connected to a folding support frame (28), and the upper side wall of the folding support frame (28) is rotatably connected to an upper support frame (210); Both sides of the outer wall of the roller support frame (7) are provided with a dirt cleaning mechanism (3); The dirt cleaning mechanism (3) comprises a protective shell (31), a connecting frame (32) being integrally formed on a side of a lower surface of the protective shell (31) away from the roller support frame (7), through holes (34) being provided on both sides of an outer wall of the protective shell (31), a cleaning brush (33) being rotatably connected to the middle position of the inner wall of the through hole (34) via a rotating shaft, a transmission chamber (39) being provided at a middle position inside the connecting frame (32), a secondary rotating wheel (35) being connected to the position of the rotating shaft of the inner wall of the transmission chamber (39) corresponding to the cleaning brush (33), a double toothed ring (36) being provided inside the transmission chamber (39) corresponding to the position of the roller shaft (5), a transmission rotating wheel (37) being rotatably connected to the two sides of the transmission chamber (39) near the double toothed ring (36) via a rotating shaft, and the secondary rotating wheel (35) and the transmission rotating wheel (37) being transmission-connected via a cleaning transmission belt (38); An anti-skid mechanism (4) is provided on the upper surface of the scooter bottom plate (1) at a position corresponding to the scooter stepping pedal (21); The anti-skid mechanism (4) comprises a telescopic slot (41), a plurality of evenly distributed buffer springs (42) are connected to the lower surface of the telescopic slot (41), metal spring groups (43) are connected to both sides of the lower surface of the telescopic slot (41), a plug plate (44) is connected to the lower surface of the skateboard stepping pedal (21) at a position corresponding to the metal spring group (43), a power storage box (45) is connected to the lower surface of the scooter bottom plate (1) near the roller shaft (5), and a portion of the lower surface of the scooter bottom plate (1) near the roller shaft (5) is connected to the power storage box (45). One side of the power storage box (45) is connected to a power generation box (46); one side of the outer wall of the roller shaft (5) is connected to a gear column (49); a position of the lower surface of the scooter bottom plate (1) corresponding to the gear column (49) is connected to a limit box (47); a lower surface of the limit box (47) is slidably connected to a limit clamp (48); a driving wheel (410) is connected to the outer wall of the roller shaft (5) corresponding to the power generation box (46); and a limit transmission belt (411) is connected to the outer wall of the driving wheel (410).

2. A three-in-one scooter according to claim 1, characterized in that: An engaging tooth groove is provided on the outer wall of the roller shaft (5) at a position corresponding to the double tooth ring (36), and an engaging tooth ring is integrally formed on the outer wall of the transmission wheel (37) at a position corresponding to the double tooth ring (36).

3. A three-in-one scooter according to claim 2, characterized in that: An energized spring is connected to the position of the limit card (48) on the inner upper surface of the limit box (47), and a sliding hole is provided on the lower surface of the limit box (47) at the position of the limit card (48).

4. A three-in-one scooter according to claim 3, characterized in that: A connection hole is provided on the outer side wall of the power generation box (46) at a position corresponding to the position of the limiting transmission belt (411), and the height of the power storage box (45) and the power generation box (46) is smaller than the distance between the roller shaft (5) and the scooter bottom plate (1).

5. A method for using a three-in-one scooter as claimed in claim 3, characterized in that: The method of using the three-in-one scooter includes the following steps: Step 1: When using the skateboard, the user can change the shape of the skateboard according to needs. In the normal state, it is in the skateboard shape. By rotating the supporting outer frame (23) on one side of the upper surface of the scooter bottom plate (1), the skateboard shape can be converted into the scooter shape. During the shape conversion process, the telescopic rod (24) can be adaptively changed in length according to the change in the rotation angle between the supporting outer frame (23) and the scooter bottom plate (1). After the supporting outer frame (23) is adjusted to a good angle, the telescopic rod (24) is used to support and limit the angle. The scooter shape is converted into the pedestrian shape. During the transformation, the folding plate (22) of the skateboard can be pulled out through the folding support frame (28) under the support of the lower support frame (29) so that the folding plate (22) of the skateboard can be raised in height. After rising to a corresponding height, the lower end of the folding support frame (28) is limited by being clamped between a plurality of limit blocks (27) on the upper surface of the scooter bottom plate (1), and one side of the folding plate (22) of the skateboard is supported by the upper support frame (210) rotatably connected to the upper side wall of the folding support frame (28), so that the folding plate (22) of the skateboard is kept in a state of being level with the scooter bottom plate (1); Step 2: When the three-in-one scooter is in use, the double-toothed ring (36) inside the transmission chamber (39) is sleeved on the outer wall of the roller shaft (5), and the convex teeth inside the double-toothed ring (36) are engaged with the engaging tooth grooves provided on the outer wall of the roller shaft (5), so that the double-toothed ring (36) can be driven to rotate during the rotation of the roller shaft (5), and the convex teeth outside the double-toothed ring (36) are engaged with the engaging toothed ring outside the transmission wheel (37), and the auxiliary wheel (35) and the transmission wheel (37) are connected by a cleaning transmission belt (38), so that the double-toothed ring (36) can drive the cleaning brush (33) to rotate, and the cleaning brush (33) contacts the outer wall of the roller (6) during the rotation process to remove the sludge adhering to the outer wall of the roller (6); Step 3: The two metal spring sheet groups (43) inside the telescopic groove (41) are connected in parallel to the circuit where the limit box (47) and the power storage box (45) are located. When the skateboard steps on the pedal (21) under the action of external force, the plug plate (44) is driven to press down and insert into the middle position of the metal spring sheet group (43), so that the metal spring sheet group (43) is connected to the circuit due to the insertion of the plug plate (44). The current stored in the power storage box (45) supplies power to the power supply spring inside the limit box (47). The power supply spring is energized and contracts, driving the limit card (48) to retract into the limit box (47) without restricting the normal rotation of the roller shaft (5). When the skateboard steps on the pedal (21) downward, the buffer spring (42) is compressed and contracts. During the rotation of the roller shaft (5), the limit transmission belt (411) drives the rotating shaft of the power generation equipment inside the power generation box (46) to rotate to perform power generation operation. The current generated inside the power generation box (46) is transmitted to the power storage box (45) for storage.

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