Scooter

Abstract

The utility model provides a scooter, relates to the technical field of vehicles, and is used for solving the technical problems that the scooter is poor in damping effect and non-adjustable in rigidity, the scooter comprises a frame, a rear wheel set, a mounting sleeve, a first damping unit and at least one second damping unit, and the rear end of the frame is provided with a rear wheel carrier; the rear wheel group comprises a rear wheel and a rocker arm; the mounting sleeve is connected with one of the rear wheel frame and the rocker arm; the first damping unit comprises a first damping part and a bearing shaft, the bearing shaft is arranged in the mounting sleeve in a penetrating mode and connected with the second end of the rocker arm, the first damping part is arranged between the peripheral wall of the bearing shaft and the inner wall of the mounting sleeve, and the second damping unit is arranged on at least one side of the rear wheel frame and detachably connected with the bearing shaft and the rear wheel frame. The first damping unit and the second damping unit are both configured to conduct damping on the relative movement between the frame and the rear wheel set so as to improve the damping effect, and therefore the riding comfort is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a scooter. BACKGROUND

[0002] In the related art, a scooter includes a frame, a front wheel set and a rear wheel set. The frame has a pedal, the front end of the pedal has a connecting arm, the front wheel set is installed on the lower end of the connecting arm through a rotating shaft, the rear end of the pedal has a rear wheel frame, and the rear wheel is installed on the rear wheel frame. In this way, a user can stand on the pedal and drive the scooter by sliding with human power or electricity, so that the front wheels in the front wheel set and the rear wheels in the rear wheel set roll on the ground to realize riding.

[0003] However, in the related art, there is a technical problem that the damping effect between the rear wheel set and the rear wheel frame is poor, and the damping stiffness is not adjustable. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the embodiments of the present application provide a scooter for improving the damping effect of the scooter and making the damping stiffness of the rear wheel set adjustable. In this way, the user can adjust the damping stiffness according to the needs, thereby improving the riding comfort of the user.

[0005] To achieve the above purpose, the embodiments of the present application provide the following technical solutions:

[0006] The embodiments of the present application provide a scooter, which includes:

[0007] A frame, the rear end of the frame has a rear wheel frame;

[0008] A rear wheel set, the rear wheel set includes a rear wheel and a rocker arm;

[0009] A mounting sleeve connected with one of the rear wheel frame and the rocker arm;

[0010] A first damping unit including a first damping member and a bearing shaft, the bearing shaft is arranged in the mounting sleeve, and the first damping member is arranged between the peripheral wall of the bearing shaft and the inner wall of the mounting sleeve;

[0011] At least one second damping unit arranged on at least one side of the first damping member and detachably connected with the bearing shaft and the rear wheel frame respectively, the first damping unit and the second damping unit are configured to damp the relative movement between the frame and the rear wheel set.

[0012] The scooter provided by the embodiment of the application comprises a frame, a rear wheel set, a mounting sleeve, a first damping unit and at least one second damping unit, the rear end of the frame is provided with a rear wheel frame; the rear wheel set comprises a rear wheel and a rocker arm; the mounting sleeve is connected with one of the rear wheel frame and the rocker arm; the first damping unit comprises a first damping piece and a bearing shaft, the bearing shaft is arranged in the mounting sleeve, the first damping piece is arranged between the peripheral wall of the bearing shaft and the inner wall of the sleeve of the mounting sleeve, and the second damping unit is arranged on at least one side of the first damping piece and detachably connected with the bearing shaft and the rear wheel frame, so that the first damping unit can realize one-stage damping for the movement between the frame and the rear wheel set, and the second damping unit can realize two-stage damping for the movement between the frame and the rear wheel set, thereby improving the overall damping effect of the scooter; in addition, the second damping unit is detachably connected with the bearing shaft and the rear wheel frame, and a user can independently select whether to additionally add the second damping unit or select the second damping unit with different damping stiffness, so that the overall damping stiffness of the scooter is adjustable to meet the needs of different users, thereby improving the riding comfort of the user.

[0013] In some embodiments, the second damping unit comprises a fixing piece and a second damping piece, the second damping piece is arranged around the outer periphery of the bearing shaft and detachably connected with the bearing shaft, and the fixing piece is located on the side of the second damping piece away from the first damping piece and detachably connected with the rear wheel frame.

[0014] In this way, the second damping piece is limited between the fixing piece and the bearing shaft, when the rocker arm is subjected to an upward force, the second damping piece is deformed under the action of the bearing shaft, the second damping piece generates a reverse restoring force to achieve the effect of shock absorption, and the damping reliability and damping effect of the second damping piece are improved.

[0015] In some embodiments, the rocker arm comprises a first sub-rocking arm, and the first sub-rocking arm and the second damping unit are arranged on opposite sides of the first damping piece along the axial direction of the bearing shaft.

[0016] In this way, while improving the damping effect, the overall structure of the scooter is compact, and the second damping unit is convenient to disassemble and assemble, thereby improving the user experience.

[0017] In some embodiments, the rocker arm further comprises a second sub-rocking arm, the second sub-rocking arm is located between the rear wheel frame and the fixing piece, and the end of the fixing piece facing the second sub-rocking arm is provided with a avoiding gap avoiding the second sub-rocking arm.

[0018] In this way, the support reliability and stability of the rocker arm to the rear wheel set can be improved; in addition, interference between the second sub-rocking arm and the fixing piece can be avoided to ensure the performance of the scooter.

[0019] In some embodiments, the first damping member has a pre-tightening force when the scooter is in a stationary state, and the second damping member has no pre-tightening force.

[0020] In this way, when the scooter is in motion, the second damping member has a pre-tightening force, so that the first damping member achieves a first-stage damping, and the second damping member achieves a second-stage damping, thereby improving the overall damping effect of the scooter and the riding comfort of the user.

[0021] In some embodiments, the second damping member has at least two damping portions arranged along the circumference of the bearing shaft, and at least one of the inner wall of the sleeve corresponding to the second damping member and the fixing member has a matching portion matching the at least two damping portions, and the at least two damping portions are configured to mutually match with the matching portion.

[0022] In this way, the position reliability and damping reliability of the second damping member can be further improved, thereby improving the damping effect.

[0023] In some embodiments, the at least two damping portions are sequentially connected to collectively form a special-shaped sleeve connecting hole, and the second damping member is sleeved on the bearing shaft through the sleeve connecting hole.

[0024] In this way, the second damping member is directly sleeved on the bearing shaft, thereby improving the position reliability and stability between the second damping member and the bearing shaft, and reducing the installation difficulty of the second damping member.

[0025] In some embodiments, the at least two damping portions are mutually independent and are arranged at intervals along the circumference of the bearing shaft, and the circumferential wall of the bearing shaft has at least two mounting positions, and the at least two damping portions are respectively mounted on the at least two mounting positions, wherein at least one damping portion is arranged on each mounting position.

[0026] In this way, the number of damping portions in the second damping member can be increased or decreased to adjust the damping stiffness of the scooter to meet the different damping stiffness requirements of the user.

[0027] In some embodiments, at least part of the second damping member is located in the mounting sleeve; or,

[0028] The second damping member is located outside the mounting sleeve.

[0029] In this way, the flexibility of the installation position of the second damping member is improved to improve the compactness of the structure.

[0030] In some embodiments, the second damping member is located in the mounting sleeve, and the inner wall of the sleeve corresponding to the second damping member has the matching portion;

[0031] The fixing member is located outside the mounting sleeve and detachably connected with the rear wheel frame.

[0032] In this way, the inner wall of the mounting sleeve can limit the second damping member in the radial direction, and the fixing member and the first damping member can limit the second damping member in the axial direction, thereby improving the position reliability of the second damping member.

[0033] In some embodiments, the second damping member is located inside the mounting sleeve, and the fixing member is at least partially located inside the mounting sleeve and surrounds the outer periphery of the second damping member, and the fixing member has the matching part.

[0034] In this way, the second damping member can be further limited, thereby ensuring the position accuracy of the second damping member and the damping effect.

[0035] In some embodiments, the second damping member is located outside the mounting sleeve, and the fixing member surrounds the outer periphery of the second damping member, and the fixing member has the matching part.

[0036] In this way, the second damping member is convenient to disassemble and assemble.

[0037] In some embodiments, the second damping member is partially located inside the mounting sleeve, and the inner wall of the mounting sleeve and the fixing member both have the matching part.

[0038] In this way, the second damping member is convenient to disassemble and assemble, and the reliability and shock absorption effectiveness of the second damping member can be improved.

[0039] In some embodiments, the damping part is a damping protrusion with a cross section in at least one of a circular shape, an elliptical shape, a quadrilateral shape, and a polygonal shape; and the matching part is a matching groove matched with the damping part.

[0040] In this way, the damping part and the matching part have simple structures, are easy to implement, and have low costs.

[0041] In some embodiments, the second damping member is at least one of a rubber member, a silica gel member, and a damping spring.

[0042] In this way, the damping effect is ensured while the cost is low.

[0043] In some embodiments, a threaded connecting member is further included, and the fixing member is detachably connected with the rear wheel frame through the threaded connecting member; or,

[0044] A first magnetic member and a second magnetic member are further included, the first magnetic member is arranged on the fixing member, the second magnetic member is arranged on the rear wheel frame, and the first magnetic member and the second magnetic member are magnetically attracted to each other; or,

[0045] The fixing member is provided with a first clamping part, and the rear wheel frame is provided with a second clamping part, and the first clamping part is configured to be clamped with the second clamping part.

[0046] In this way, the detachable difficulty between the fixing member and the rear wheel frame is reduced, the user can operate conveniently, and the experience of the user is improved.

[0047] In some embodiments, the first damping member is a damping cylinder, and the damping cylinder is sleeved on the bearing shaft.

[0048] In this way, the first damping member is directly sleeved on the bearing shaft, the connection mode of the first damping member and the bearing shaft is simple, the damping in the circumferential direction can be achieved, and the damping effect can be improved.

[0049] In some embodiments, the mounting sleeve is welded, threadedly connected or clamped with one of the rear wheel frame and the rocker arm; or,

[0050] The mounting sleeve and one of the rear wheel frame and the rocker arm are in an integrated structure.

[0051] In this way, the connection reliability and stability of the mounting sleeve and one of the rear wheel frame and the rocker arm can be improved.

[0052] In some embodiments, the first damping unit further comprises a fastening ring, and the fastening ring is arranged around the outer circumferential wall of the first damping member.

[0053] In this way, the fastening ring can limit and fasten the circumferential direction of the first damping member, so as to improve the damping effect of the first damping member.

[0054] In addition to the technical problems solved by the embodiments of the application described above, the technical features constituting the technical solutions and the beneficial effects brought by these technical features, the other technical problems solved by the scooter provided by the embodiments of the application, the other technical features included in the technical solutions and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0056] Figure 1 A structural schematic view of the scooter provided by the embodiments of the application;

[0057] Figure 2 is an exploded view of the structure of the scooter according to the present application; Figure 1

[0058] Figure 3 is a partial enlarged view of A in the structure of the scooter according to the present application; Figure 2

[0059] Figure 4 is another exploded view of the structure of the scooter according to the present application; Figure 1

[0060] Figure 5 is a partial view of B in the structure of the scooter according to the present application; Figure 4

[0061] Figure 6 is yet another exploded view of the structure of the scooter according to the present application; Figure 1

[0062] Figure 7 is a partial view of C in the structure of the scooter according to the present application; Figure 6

[0063] Figure 8 is a view of the structure of the fixing member in the structure of the scooter according to the present application; Figure 1

[0064] Figure 9 is another exploded view of the structure of the scooter according to the present application;

[0065] Figure 10 Figure 9 is an exploded view of the structure of the scooter according to the present application;

[0066] Explanation of reference signs:

[0067] 10 - scooter

[0068] 100 - frame; 110 - rear wheel frame; 111 - mounting sleeve

[0069] 120 - pedal; 130 - connecting arm

[0070] 200 - rear wheel set

[0071] 210 - rear wheel; 211 - wheel shaft

[0072] 220 - rocker arm; 221 - first sub-rocker arm; 240 - end cover; 250 - decorative member; 270 - nut

[0073] 300 - front wheel set; 310 - front wheel; 320 - front arm

[0074] 400 - first damping unit; 410 - first damping member; 420 - bearing shaft; 421 - mounting position; 430 - fastening ring

[0075] ​​​​​​​​500 - Second damping unit; 510 - Second damping component; 511 - Damping section; 512 - Sleeve hole;

[0076] 520 - Fastener; 521 - Mating groove;

[0077] 600 - Threaded connection. Detailed Implementation

[0078] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0079] Figure 1 This is a schematic diagram of a scooter provided in an embodiment of this application. Please refer to... Figure 1 As shown, this application embodiment provides a scooter 10, wherein the scooter 10 can be an electric scooter with electric drive, or a human-powered scooter propelled by human force; as Figure 1 In this scooter 10, there are a frame 100, a rear wheel assembly 200, and a front wheel assembly 300. The frame 100 has a footboard 120, a rear wheel frame 110 at the rear end of the footboard 120, and a connecting arm 130 at the front end of the footboard 120. The rear wheel assembly 200 includes a rear wheel 210 and a rocker arm 220. The rear wheel 210 is rotatably connected to the first end of the rocker arm 220 via an axle 211, and the second end of the rocker arm 220 is rotatably connected to the rear wheel frame 110. The front wheel assembly 300 includes a forearm 320 and a front wheel 310. One end of the forearm 320 is rotatably connected to the connecting arm 130, and the other end of the forearm 320 is rotatably connected to the axle of the front wheel 310. In this way, the user can stand on the footboard 120 and ride by sliding the rear wheel 210 and the front wheel 310 on the ground through manual or electric drive.

[0080] When the scooter 10 is running, the rear wheel 210 will exert an upward force on the rocker arm 220, and the force received by the rocker arm 220 is transmitted to the rear wheel frame 110, and then to the vehicle frame 100, and the vehicle frame 100 will exert a counteracting force on the axle 211 of the rear wheel 210 through the rear wheel frame 110 and the rocker arm 220. Therefore, when the user is riding, there is a certain vibration, especially when the road surface is uneven, the vibration will be greater, which affects the riding comfort of the user. On the other hand, the stiffness of the vehicle frame 100 and the axle 211 of the rear wheel 210 and other components is determined after manufacturing, and the stiffness cannot be adjusted. Therefore, when the vibration is large, it will affect the service life of the vehicle frame 100 and the axle 211 of the rear wheel 210 and other components.

[0081] Based on the above problems, the scooter 10 provided by the embodiments of the present application sets a first damping unit 400 and at least one second damping unit 500, so that the first damping unit 400 and the at least one second damping unit 500 can both damp the scooter 10, improve the damping effect, and thus improve the riding comfort of the user and prolong the service life of each component in the scooter 10.

[0082] The specific structure of the scooter 10 and various possible embodiments will be described in detail below with reference to the accompanying drawings.

[0083] Please refer to Figures 2 to 7 , Figure 9 and Figure 10 , the scooter 10 provided by the embodiments of the present application further comprises a mounting sleeve 111, which is connected with one of the rear wheel frame 110 and the rocker arm 220. For example, the mounting sleeve 111 is connected with the rear wheel frame 110. For another example, the mounting sleeve 111 is connected with the rocker arm 220.

[0084] The mounting sleeve 111 and one of the rear wheel frame 110 and the rocker arm 220 can be connected as a whole structure by welding, or can be detachably connected by screw connection, clamping or other means. In this way, when the mounting sleeve 111 is damaged, it can be disassembled and replaced.

[0085] Alternatively, the mounting sleeve 111 can also be integrally formed with one of the rear wheel frame 110 and the rocker arm 220 by casting or injection molding, for example, as shown in Figures 2 to 5 , the mounting sleeve 111 and the rear wheel frame 110 are an integral structure.

[0086] The following will take the mounting sleeve 111 connected with the rear wheel frame 110 as an example for introduction.

[0087] Please refer to Figures 2 to 7 , Figure 9 , Figure 10As shown, the scooter 10 further comprises a first damping unit 400, the first damping unit 400 comprising a first damping member 410 and a bearing shaft 420, the bearing shaft 420 being arranged in the mounting sleeve 111, it can be understood that the mounting sleeve 111 is a hollow structure, the bearing shaft 420 is arranged in the hollow structure, the first end of the rocker arm 220 is rotatably connected with the wheel shaft 211 of the rear wheel 210, and the second end of the rocker arm 220 is rotatably connected with the bearing shaft 420; the first damping member 410 is arranged between the peripheral wall of the bearing shaft 420 and the inner wall of the cylinder of the mounting sleeve 111, wherein the first damping member 410 has a shock absorption function, for example, the first damping member 410 comprises but is not limited to a damping cylinder made of a material with elasticity such as rubber, silicone, etc., as shown in Figures 4 to 7 As shown, the first damping member 410 is a damping cylinder, the damping cylinder is sleeved on the bearing shaft 420, in addition, the outer periphery of the first damping member 410 is further sleeved with a fastening ring 430, for example, the fastening ring 430 is a rigid structure, in this way, the first damping member 410 is limited between the fastening ring 430 and the peripheral wall of the bearing shaft 420, when being mounted in the mounting sleeve 111, the fastening ring 430 is at least partially in direct contact with the inner wall of the cylinder of the mounting sleeve 111, so that the first damping member 410 has a pre-tightening force.

[0088] In this way, when the scooter 10 is sliding, the rear wheel 210 is subjected to an upward force and drives the rocker arm 220 to rotate around the bearing shaft 420, and the force is transmitted to the bearing shaft 420, the first damping member 410 is deformed under the action of the relative rotation between the bearing shaft 420 and the rocker arm 220, the first damping member 410 generates a first restoring force opposite to the deformation direction of the first damping member 410, to resist the force applied by the rocker arm 220 to the bearing shaft 420, so that the force received by the bearing shaft 420 is not directly transmitted to the frame 100, that is, the first damping member 410 can absorb the shock, so as to avoid the rigid contact between the bearing shaft 420 and the frame 100 and generate a larger shock, it can be seen that by arranging the first damping member 410 between the bearing shaft 420 and the inner wall of the cylinder of the mounting sleeve 111, a first damping is formed, the damping effect of the scooter 10 is improved, and the riding comfort is improved.

[0089] Please continue to refer to Figures 2 to 7As shown, the scooter 10 further comprises at least one second damping unit 500, the at least one second damping unit 500 is arranged at least one side of the first damping member 410, and the second damping unit 500 is detachably connected with the bearing shaft 420 and the rear wheel frame 110, so that when the scooter 10 is running, the rear wheel 210 is subjected to an upward force to drive the rocker arm 220 to move relative to the bearing shaft 420, and the bearing shaft 420 is subjected to the force of the rocker arm 220, the first damping member 410 and the second damping unit 500 are deformed, the first damping member 410 generates a first restoring force opposite to the deformation direction, and the second damping unit 500 generates a second restoring force, under the action of the first restoring force and the second restoring force, the rocker arm 220 is restored to the original position, to form a two-stage damping, reduce the vibration between the rear wheel set 200 and the frame 100, thereby further improving the damping effect, improving the riding comfort of the user, and prolonging the service life of each component of the scooter 10.

[0090] In addition, the second damping unit 500 is located at least one side of the first damping member 410, and the second damping unit 500 is detachably connected with the bearing shaft 420 and the rear wheel frame 110, so that the user can independently select whether to add the second damping unit 500, i.e. the two-stage damping user can independently select, so as to independently select the damping performance, in addition, the user can also independently select the damping stiffness of the second damping unit according to the specific needs, so that the overall stiffness of the scooter 10 is adjustable, the damping effect is improved, and the overall stiffness of the scooter 10 is ensured, which can prolong the service life of each component of the scooter 10.

[0091] It can be understood that either side or both sides of the first damping member 410 is provided with the second damping unit 500, and the number of the second damping unit 500 can be independently selected according to specific needs to meet the stiffness requirements and shock absorption effect in different scenes, so as to further improve the riding comfort of the user.

[0092] Please continue to refer to Figures 2 to 7 As shown, the second damping unit 500 comprises a second damping member 510 and a fixing member 520, the second damping member 510 surrounds the outer periphery of the bearing shaft 420 and is detachably connected with the bearing shaft 420, and the fixing member 520 is located on the side of the second damping member 510 away from the first damping member 410 and is detachably connected with the rear wheel frame 110, so that the fixing member 520 can limit and fix the second damping member 510, to improve the accuracy and reliability of the position of the second damping member 510.

[0093] For example, the second damping member 510 can be at least one of a rubber member, a silicone member and a damping spring, so as to ensure the damping effect while reducing the cost.

[0094] When the scooter 10 is running, the rear wheel 210 is subjected to an upward force, which drives the rocker arm 220 to move relative to the bearing shaft 420. The bearing shaft 420 is subjected to the force of the rocker arm 220, which drives the first damping member 410 and the second damping member 510 to deform to increase the damping stiffness. The first damping member 410 generates a first restoring force opposite to the direction of its deformation, and the second damping member 510 generates a second restoring force opposite to the direction of its deformation. The first restoring force and the second restoring force jointly drive the rocker arm 220 to recover to the original position, thereby reducing the shock and improving the riding comfort.

[0095] For example, the second damping member 510 is made of an elastic material such as silica gel or rubber, as long as it can achieve the shock absorption effect. In addition, the fixing member 520 is in the form of a cover. When the second damping member 510 is coaxially connected with the bearing shaft 420, the fixing member 520 is arranged on the side of the second damping member 510 away from the first damping member 410, so as to limit and fix the second damping member 510.

[0096] In some embodiments, as shown in Figures 2 to 7 The first damping member 410 is provided with the second damping unit 500 on one side only. The rocker arm 220 includes a first sub-rocker arm 221. Along the axial direction of the bearing shaft 420, the first sub-rocker arm 221 is arranged on the side of the first damping member 410 away from the second damping unit 500, i.e., the first sub-rocker arm 221 and the second damping unit 500 are arranged on opposite sides of the first damping member 410. One end of the first sub-rocker arm 221 is rotationally connected with the wheel shaft 211 of the rear wheel 210, and the other end is rotationally connected with the bearing shaft 420, so as to limit and support the rear wheel 210. Arranging the first sub-rocker arm 221 on the side of the first damping member 410 away from the second damping unit 500 can avoid the first sub-rocker arm 221 affecting the disassembly of the second damping unit 500, improve the disassembly convenience of the second damping unit 500, and also improve the structural compactness of the scooter 10.

[0097] In other embodiments, the rocker arm 220 further includes a second sub-rocker arm. The second sub-rocker arm and the second damping unit 500 are arranged on the same side of the first damping member 410, i.e., the first sub-rocker arm 221 and the second sub-rocker arm are arranged on opposite sides of the first damping member 410. One end of the second sub-rocker arm is rotationally connected with the wheel shaft 211 of the rear wheel 210, and the other end is rotationally connected with the bearing shaft 420. In this way, the second sub-rocker arm and the first sub-rocker arm 221 jointly limit and support the rear wheel 210, which can improve the stability and reliability of the rear wheel 210.

[0098] For example, the second sub-rocker arm is located between the rear wheel frame 110 and the fixing member 520, and the end of the fixing member 520 facing the second sub-rocker arm has an avoiding gap for avoiding the second sub-rocker arm to prevent the interference between the fixing member 520 and the second sub-rocker arm from affecting the installation of the second damping unit 500, so as to avoid affecting the damping effect and overall performance of the scooter 10.

[0099] It should be noted that when the first damping unit 400 and the second damping unit 500 are installed on the scooter 10, the first damping member 410 has a pre-tightening force when the scooter 10 is in a stationary state, and the second damping member 510 does not have a pre-tightening force; when the scooter 10 is in motion, the first damping member 410 and the second damping member 510 both have a pre-tightening force to reduce the vibration of the scooter 10, thereby improving the damping effect and the riding comfort of the user.

[0100] In some embodiments, the second damping member 510 has at least two damping portions 511 arranged along the circumference of the bearing shaft 420, and at least one of the inner wall of the mounting sleeve 111 corresponding to the second damping member 510 and the fixing member 520 has a matching portion matched with the at least two damping portions 511, and the at least two damping portions 511 are configured to mutually cooperate with the matching portion, so that the damping stiffness of the second damping member 510 can be determined by increasing or decreasing the number of damping portions 511, and in addition, by cooperating the matching portion with the corresponding damping portion 511, the position reliability and damping reliability of the second damping member 510 can be further improved, thereby improving the damping effect.

[0101] Please refer to Figures 4 to 7 It is shown that the at least two damping portions 511 are connected in sequence and collectively surround to form a heterogeneous sleeve joint hole 512, and the second damping member 510 is sleeved on the bearing shaft 420 through the sleeve joint hole 512, and in order to make the second damping member 510 and the bearing shaft 420 coaxially rotate, the cross-sectional shape of the bearing shaft 420 is a polygon, and correspondingly, the contour shape of the sleeve joint hole 512 on the second damping member 510 matches the polygon of the bearing shaft 420, so that when the second damping member 510 is sleeved on the bearing shaft 420, it can drive the second damping member 510 to rotate coaxially, for example, as shown in Figure 2 and Figure 3 It is shown that the sleeve joint hole 512 is a quadrilateral hole, and the cross-sectional contour of the bearing shaft 420 is also a quadrilateral matching with it.

[0102] For example, as shown in Figures 4 to 7In some embodiments, the at least two damping parts 511 are sequentially connected to form a damping block structure with a sleeve hole 512. When the scooter 10 is stationary, the second damping member 510 has no pre-tightening force. When the scooter 10 is sliding, the second damping member 510 can generate an elastic pre-tightening force with torsional force to achieve the purpose of damping effect. The number of damping parts 511 can be adaptively designed according to specific requirements.

[0103] It can be understood that the number of damping parts 511 can be adaptively designed according to specific requirements, which is not specifically limited here.

[0104] For example, the at least two damping parts 511 can be integrally formed by injection molding or the like; or the at least two damping parts 511 can be detachable, so that the user can independently select the number of damping parts 511 to meet different damping requirements and improve the riding comfort.

[0105] For example, the at least two damping parts 511 can be detachably connected by clamping, magnetic attraction or the like.

[0106] In some other embodiments, as shown in Figure 9 and Figure 10 the at least two damping parts 511 are independent of each other and are arranged in a circumferential direction of the bearing shaft 420. In this way, the user can independently adjust the damping stiffness of the scooter 10 by increasing or decreasing the number of damping parts 511 to meet the different damping stiffness requirements of the user.

[0107] In addition, in order to improve the position reliability of the at least two damping parts 511 on the circumference of the bearing shaft 420, as shown in Figure 9 and Figure 10 the circumferential wall of the bearing shaft 420 has at least two mounting positions 421. The profiles of the mounting positions 421 match the profiles of the damping parts 511. The at least two mounting positions 421 are arranged in a circumferential direction of the bearing shaft 420. The at least two damping parts 511 are respectively mounted on the at least two mounting positions 421. In this way, at least one damping part 511 is arranged on each mounting position 421. The damping parts 511 are mounted on the corresponding mounting positions 421 to improve the accuracy and reliability of the positions of the damping parts 511 in the circumferential direction of the bearing shaft 420, thereby improving the damping reliability of the second damping member 510 and ensuring the damping effect.

[0108] For example, the damping part 511 can be a columnar structure with a cross-section in at least one of a circular shape, an elliptical shape or a polygonal shape. In this way, the damping part 511 has a simple structure, is easy to implement and has a low cost.

[0109] For example, as shown in Figures 8 to 10As shown in FIG. 11, the damping part 511 is a cylindrical body with a circular cross section, and the number of the damping part 511 is 4. Correspondingly, the mounting position 421 is a circular-arc-shaped slot structure matching the outer contour of the damping part 511, and the number of the mounting position 421 is also 4. During installation, the damping part 511 is installed on the corresponding mounting position 421 to improve the position reliability of the damping part 511, thereby improving the damping reliability and ensuring the damping effect.

[0110] It should be noted that the number of the damping part 511 can be 1, 2, 3, 4 or more than 4, which can be increased or decreased according to actual needs, as long as the shock absorption effect and the overall stiffness of the scooter are ensured, and no specific limitation is made here.

[0111] For example, the damping part 511 can be at least one of a rubber piece, a silica gel piece and a damping spring with a circular cross section or other arbitrary shape, which ensures the damping effect while keeping the cost low.

[0112] In addition, in some embodiments, at least part of the second damping piece 510 can be located inside the mounting sleeve 111, that is, the second damping piece 510 can be located entirely inside the mounting sleeve 111 or partially inside the mounting sleeve 111; or the second damping piece 510 is located entirely outside the mounting sleeve 111, which can improve the flexibility of the setting position of the second damping piece 510, improve the space utilization, and thus improve the overall structural compactness.

[0113] For example, Figures 4 to 10 As shown in FIG. 11, the second damping piece 510 is located entirely inside the mounting sleeve 111, and the inner wall of the mounting sleeve 111 corresponding to the second damping piece 510 has a matching part, wherein the matching part matches the contour of the corresponding damping part 511, for example, the second damping piece 510 includes at least two damping parts 511 along the circumference, and the contour shape of the matching part matches the contour of the corresponding damping part 511. In this way, the matching part cooperates with the second damping piece 510 to improve the position reliability of the second damping piece 510. In addition, the fixing piece 520 is located outside the mounting sleeve 111 and detachably connected with the rear wheel frame 110, that is, the fixing piece 520 limits and fixes the end of the second damping piece 510 to avoid the second damping piece 510 from moving in the axial direction, thereby further improving the position accuracy and reliability of the second damping piece 510 and ensuring the damping effect.

[0114] Another example, the second damping member 510 is located in the mounting sleeve 111, the fixing member 520 is at least partially located in the mounting sleeve 111 and surrounds the outer periphery of the second damping member 510, the fixing member 520 has a matching part matched with the outer contour of the second damping member 510, for example, a matching groove, so that the fixing member 520 limits and fixes the circumferential and axial directions of the second damping member 510, and the fixing member 520 is detachably connected with the rear wheel frame 110, for example, the fixing member 520 and the rear wheel frame 110 can be detachably connected through elastic clamping, mechanical clamping, magnetic attraction and the like, so that the compactness of the overall structure of the scooter 10 can be improved.

[0115] Still another example, as shown in Figures 2 to 7 , Figure 9 and Figure 10 , the second damping member 510 is located outside the mounting sleeve 111, and the fixing member 520 surrounds the outer periphery of the second damping member 510, and the fixing member 520 has a matching part, for example, as shown in Figure 6 and Figure 8 , the matching part is a matching groove 521 corresponding to the damping part 511, so that when the fixing member 520 surrounds the outer periphery of the second damping member 510 and is detachably connected with the rear wheel frame 110, each damping part 511 in the second damping member 510 is located in the corresponding matching groove 521 to limit and fix the damping part 511, improve the positional reliability of the damping part 511, and thus improve the damping reliability and ensure the damping effect.

[0116] In some embodiments, the second damping member 510 is partially located in the mounting sleeve 111, and the hole wall of the mounting sleeve 111 and the fixing member 520 both have matching parts, that is, part of the second damping member 510 and the fixing member 520 are located in the mounting sleeve 111, and part of them are located outside the mounting sleeve 111, and the fixing member 520 is detachably connected with the rear wheel frame 110, so that the second damping member 510 can be easily disassembled while the compactness of the structure can be improved.

[0117] As shown in Figures 4 to 7 , the damping part 511 is a damping protrusion with a cross section of at least one of a circle, an ellipse, a quadrilateral and a polygon, and the matching part is a matching groove matched with the damping protrusion; or, as shown in Figure 9 and Figure 10 , the damping part 511 is a damping cylinder independent of each other and having a cross section of at least one of a circle, an ellipse, a quadrilateral and a polygon, and the matching part is matched with the contour shape of the damping cylinder.

[0118] In some embodiments, as shown in Figures 4 to 7As shown, the first damping member 410 and the second damping member 510 are sequentially sleeved on the bearing shaft 420, and the first damping member 410 is located inside the mounting sleeve 111, and the second damping member 510 is located outside the mounting sleeve 111, the fixing member 520 is arranged on the outer periphery of the second damping member 510, and is connected with the rear wheel frame 110 through the threaded connecting member 600, so that when the second damping member 510 needs to be disassembled, only the threaded connecting member 600 needs to be removed, and the second damping member 510 can be disassembled from the bearing shaft 420, thereby improving the disassembly convenience of the second damping member 510, and facilitating the user to independently select whether to additionally add the second damping member 510 to achieve different damping effects.

[0119] In other embodiments, the fixing member 520 and the rear wheel frame 110 can also be detachably connected through the first magnetic member and the second magnetic member by magnetic attraction. Specifically, the first magnetic member is fixedly arranged on the fixing member 520, and the second magnetic member is fixedly arranged on the rear wheel frame 110. When the fixing member 520 moves towards the rear wheel frame 110, the first magnetic member and the second magnetic member are magnetically attracted to each other, thereby completing installation. When disassembling, only a force greater than the magnetic attraction needs to be applied to the fixing member 520 to achieve disassembly. The disassembly is simple and does not require other disassembly tools, thereby reducing disassembly costs.

[0120] In yet other embodiments, the fixing member 520 and the rear wheel frame 110 can also be detachably connected through clamping. Specifically, the fixing member 520 is provided with a first clamping part, and the rear wheel frame 110 is provided with a second clamping part. The first clamping part and the second clamping part can be clamped or unclamped to achieve detachable connection, and the disassembly is simple. Specifically, the first clamping part is one of a clamping protrusion and a clamping groove, and the second clamping part is the other one of the clamping protrusion and the clamping groove.

[0121] Please continue to refer to Figure 6 and Figure 7 As shown, the scooter 10 further comprises a bearing, an end cover 240, a fastener, a nut 270 and a decorative member 250. The end cover 240 is mounted on the bearing shaft 420 through the bearing, and the end cover 240 is fixedly connected with the rear wheel frame 110 through the fastener. The rocker arm 220 is arranged on the bearing shaft 420 and located on the side of the end cover 240 away from the rear wheel frame 110. The bearing shaft 420 is provided with an external thread near the end portion, and the nut 270 is threadedly connected with the external thread to limit and fix the rocker arm 220 in the axial direction of the bearing shaft 420. In addition, the decorative member 250 is arranged on the side of the rocker arm 220 away from the rear wheel frame 110. The decorative member 250 can be buckled on the outer periphery of the rocker arm 220 through clamping or the like. The color of the decorative member 250 is matched with the scooter 10 to improve the appearance of the scooter 10 and also to protect the rocker arm 220.

[0122] In some embodiments, the bearing shaft 420 includes at least a first sub-bearing shaft and a second sub-bearing shaft, a first damping member 410 is sleeved on the first sub-bearing shaft, and a second damping member 510 is sleeved on the second sub-bearing shaft. For example, when the first damping member 410 is a damping cylinder, the radial dimension (or cross-sectional dimension, i.e., the dimension perpendicular to the axial direction) of the first sub-bearing shaft matches the cross-sectional dimension of the inner hole of the damping cylinder, while the radial dimension (or cross-sectional dimension) of the second sub-bearing shaft matches the cross-sectional dimension of the sleeve hole 512 of the second damping member 510.

[0123] The first and second sub-bearing shafts can be integral structures formed by casting, injection molding, or machining; alternatively, they can be independent of each other. Furthermore, regardless of whether they are integral or independent, they can be coaxial or non-coaxial. When they are independent, they can be detachably connected (e.g., snap-fit, magnetic attraction), fixedly connected (e.g., adhesive bonding, welding), or not connected at all. The specific design can be tailored to the actual situation, and no specific restrictions are imposed here.

[0124] For example, such as Figures 2 to 7 , Figure 9 and Figure 10 As shown, the bearing shaft 420 is a stepped shaft with a coaxial and integral structure.

[0125] In order to further improve the shock absorption effect of the scooter 10, the first shock absorption unit 400 and the second shock absorption unit 500 can also be arranged between the front wheel set 300 and the connecting arm 130. For example, the scooter 10 further comprises a mounting cylinder, the front end of the frame has the connecting arm 130; the front wheel set 300 comprises a front wheel 310 and a front arm 320; the mounting cylinder is connected with one of the connecting arm 130 and the front arm 320; the first shock absorption unit 400 comprises a first shock absorption piece 410 and a bearing shaft 420, the bearing shaft 420 is arranged in the mounting cylinder, the first shock absorption piece 410 is arranged between the circumferential wall of the bearing shaft 420 and the inner wall of the mounting cylinder, the second shock absorption unit 500 is arranged on at least one side of the first shock absorption piece 410 and is detachably connected with the bearing shaft 420 and the connecting arm 130, respectively. In this way, the first shock absorption unit 400 can realize one-stage shock absorption for the movement between the frame 100 and the front wheel set 300, and the second shock absorption unit 500 can realize two-stage shock absorption for the movement between the frame 100 and the front wheel set 300, thereby improving the overall shock absorption effect of the scooter 10. In addition, the second shock absorption unit 500 is detachably connected with the bearing shaft 420 and the connecting arm 130, respectively, so that the user can independently select whether to add the second shock absorption unit 500 or select the second shock absorption unit 500 with different shock absorption stiffness, so as to adjust the overall shock absorption stiffness of the scooter 10 to meet the needs of different users, thereby improving the riding comfort of the user.

[0126] In summary, the scooter provided by the embodiment of the present application comprises a frame, a rear wheel set, a mounting sleeve, a first shock absorption unit and at least one second shock absorption unit, the rear end of the frame has a rear wheel frame; the rear wheel set comprises a rear wheel and a rocker arm; the mounting sleeve is connected with one of the rear wheel frame and the rocker arm; the first shock absorption unit comprises a first shock absorption piece and a bearing shaft, the bearing shaft is arranged in the mounting sleeve, the first shock absorption piece is arranged between the circumferential wall of the bearing shaft and the inner wall of the mounting sleeve, the second shock absorption unit is arranged on at least one side of the first shock absorption piece and is detachably connected with the bearing shaft and the rear wheel frame, respectively. In this way, the first shock absorption unit can realize one-stage shock absorption for the movement between the frame and the rear wheel set, and the second shock absorption unit can realize two-stage shock absorption for the movement between the frame and the rear wheel set, thereby improving the overall shock absorption effect of the scooter. In addition, the second shock absorption unit is detachably connected with the bearing shaft and the rear wheel frame, respectively, so that the user can independently select whether to add the second shock absorption unit or select the second shock absorption unit with different shock absorption stiffness, so as to adjust the overall shock absorption stiffness of the scooter to meet the needs of different users, thereby improving the riding comfort of the user.

[0127] It should be noted that a reference to "one embodiment," "an embodiment," "example embodiment," "some embodiments," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

[0128] In general, terminology can be understood at least in part from usage in context. For example, terms, such as "one or more" as used herein, can be understood as in some embodiments including at least one, or in some embodiments including at least one, but not including more than one; or, at least in part, from a patent or non-patent reference context in which the same term is employed. Similar

[0129] As will be readily appreciated by one skilled in the art, the present application employs, unless otherwise indicated herein, conventional techniques of the computer and information technology arts. Such conventional techniques are believed to be easily within the scope of one skilled in the art. The terms "on," "above," and "over" as used herein refer to a relationship wherein an element is located in a direction toward a reference surface as illustrated in the figures, and does not necessarily imply a direct anatomic or spatial relationship between components.

[0130] In addition, spatially relative terms, such as "under", "below", "lower", "over", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90° or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0131] Finally, it should be noted that the above-described embodiments are merely exemplary of the application of the principles of the present application. Numerous modifications and adaptations thereof will be apparent to those skilled in the art without departing from the spirit and scope of the present application as defined in the following claims.

Claims

1. A scooter, characterized in that, The utility model relates to a vehicle frame, and particularly relates to a vehicle frame with a rear wheel group and a damping unit. The utility model discloses a vehicle frame, which comprises a vehicle frame (100), a rear wheel group (200) and a damping unit (400). The rear wheel group (200) comprises a rear wheel (210) and a rocker arm (220). The damping unit (400) comprises a first damping member (410) and a bearing shaft (420). The bearing shaft (420) is arranged in the mounting sleeve (111), and the first damping member (410) is arranged between the circumferential wall of the bearing shaft (420) and the inner wall of the mounting sleeve (111). The damping unit (400) and the second damping unit (500) are configured to dampen the relative movement between the vehicle frame (100) and the rear wheel group (200).

2. Scooter according to claim 1, characterized in that The second damping unit (500) comprises a second damping member (510) and a fixing member (520).

3. Scooter according to claim 2, characterized in that The second damping member (510) surrounds the outer periphery of the bearing shaft (420) and is detachably connected with the bearing shaft (420).

4. Scooter according to claim 3, characterized in that The fixing member (520) is located on the side of the second damping member (510) away from the first damping member (410) and is detachably connected with the rear wheel carrier (110).

5. Scooter according to any of claims 2-4, characterized in that, The rocker arm (220) comprises a first sub-rocking arm (221).

6. Scooter according to any of claims 2-4, characterized in that, The first sub-rocking arm (221) and the second damping unit (500) are arranged on opposite sides of the first damping member (410) along the axial direction of the bearing shaft (420).

7. Scooter according to claim 6, characterized in that The rocker arm (220) further comprises a second sub-rocking arm. The second sub-rocking arm is located between the rear wheel carrier (110) and the fixing member (520). The first damping member (410) has a pre-tightening force when the scooter is in a stationary state, and the second damping member (510) does not have a pre-tightening force. The second damping member (510) has at least two damping portions (511) arranged along the circumferential direction of the bearing shaft (420). At least one of the inner wall of the mounting sleeve (111) corresponding to the second damping member (510) and the fixing member (520) has a matching portion matched with the at least two damping portions (511). The at least two damping portions (511) are sequentially connected and collectively surround a special-shaped sleeve hole (512). The second damping member (510) is arranged on the bearing shaft (420) through the sleeve hole (512). At least two damping portions (511) are arranged independently and spaced along the circumference of the bearing shaft (420), and the circumferential wall of the bearing shaft (420) has at least two mounting positions (421), and at least two damping portions (511) are respectively arranged on the at least two mounting positions (421), wherein at least one mounting position (421) is provided with at least one damping portion (511).

8. Scooter according to claim 6, characterized in that At least part of the second damping member (510) is arranged in the mounting sleeve (111); or, The second damping member (510) is arranged outside the mounting sleeve (111).

9. Scooter according to claim 8, characterized in that The second damping member (510) is arranged in the mounting sleeve (111), and the inner wall of the mounting sleeve (111) corresponding to the second damping member (510) has the matching portion; The fixing member (520) is arranged outside the mounting sleeve (111) and detachably connected with the rear wheel frame (110); or, The second damping member (510) is arranged in the mounting sleeve (111), and the fixing member (520) is at least partially arranged in the mounting sleeve (111) and surrounds the outer periphery of the second damping member (510), and the fixing member (520) has the matching portion; or, The second damping member (510) is arranged outside the mounting sleeve (111), and the fixing member (520) surrounds the outer periphery of the second damping member (510), and the fixing member (520) has the matching portion; or, Part of the second damping member (510) is arranged in the mounting sleeve (111), and the inner wall of the mounting sleeve (111) and the fixing member (520) both have the matching portion.

10. The scooter of claim 6, wherein, The damping portion (511) is a damping protrusion with a cross section in at least one of a circular shape, an elliptical shape, a quadrilateral shape, and a polygonal shape; and the matching portion is a matching groove matched with the damping portion (511).

11. The scooter of claim 4, wherein, The second damping member (510) is at least one of a rubber member, a silica gel member, and a damping spring; and / or, The fixing member (520) is detachably connected with the rear wheel frame (110) through a threaded connecting member (600); or, The first magnetic member is arranged on the fixing member (520), the second magnetic member is arranged on the rear wheel frame (110), and the first magnetic member and the second magnetic member are magnetically attracted to each other; or, The first clamping portion is arranged on the fixing member (520), the second clamping portion is arranged on the rear wheel frame (110), and the first clamping portion is configured to be clamped with the second clamping portion; and / or, The first damping member (410) is a damping cylinder, and the damping cylinder is sleeved on the bearing shaft (420).

12. Scooter according to any of claims 1-3, characterized in that, The mounting sleeve (111) is welded, threadedly connected, or clamped with one of the rear wheel frame (110) and the rocker arm (220); or, The mounting sleeve (111) is an integral structure with one of the rear wheel frame (110) and the rocker arm (220); and / or, The first damping unit (400) further comprises a fastening ring (430) which is surrounded by the outer peripheral wall of the first damping member (410).

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