CN111619714B - Article basket of folding seat of bicycle and folding bicycle - Google Patents
Article basket of folding seat of bicycle and folding bicycle Download PDFInfo
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- CN111619714B CN111619714B CN202010503449.5A CN202010503449A CN111619714B CN 111619714 B CN111619714 B CN 111619714B CN 202010503449 A CN202010503449 A CN 202010503449A CN 111619714 B CN111619714 B CN 111619714B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K15/00—Collapsible or foldable cycles
- B62K15/006—Collapsible or foldable cycles the frame being foldable
- B62K15/008—Collapsible or foldable cycles the frame being foldable foldable about 2 or more axes
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Abstract
The invention discloses a storage basket of a folding seat of a bicycle and the folding bicycle, which comprises a deformation structure formed by hinging a plurality of connecting pieces; the deformation structure comprises a first connecting piece, a second connecting piece and a third connecting piece; the first connecting piece and the second connecting piece are synchronously hinged with the front part of the vehicle body and the rear part of the vehicle body to form a parallelogram structure with four hinged points on the first connecting piece and the second connecting piece as vertex angles; the hinge point of the parallelogram structure comprises: the two displacement hinge points are connected to the two rotating hinge points on the front part of the vehicle body and connected to the rear part of the vehicle body and swing along a parallelogram deformation track; the first connecting piece and the second connecting piece are turned over based on a rotating hinge point; the third connecting piece is connected with the front part of the vehicle body through a hinge point and synchronously overturns with the first connecting piece and the second connecting piece; the third connecting piece comprises: a guide groove determined according to a movement track of the displacement hinge point; the displacement hinge point is matched with the groove to generate state control of structural folding change.
Description
Technical Field
The invention relates to the field of folding bicycles and structures thereof, in particular to a storage basket of a folding seat of a bicycle and a folding bicycle.
Background
The folding bicycle belongs to a classification of bicycles, and is different from a common bicycle in that the folding bicycle can fold a bicycle body and can be unfolded when in use. The design purpose of a common folding bicycle mainly solves the problem of bicycle parking. It is known that the volume of a foldable bicycle is greatly reduced after the foldable bicycle is folded.
The folding structure of the folding bicycle has a plurality of kinds, and it is common that a turning point is arranged on a body frame of a common bicycle, so that the front part of the body and the rear part of the body are folded in half, thus the common folding bicycle can be folded to reduce the occupied space. Although the way can make the vehicle body frameworks close and fold each other, the front wheels and the rear wheels close each other to form a folding state, the folding way of the front wheels and the rear wheels close each other can cause that the volume of the common folding vehicle is still too large and the common folding vehicle is not easy to carry. In addition, when the handle is folded, the handle and the rear wheel are overlapped together, and the fluted disc is easily damaged if the handle is collided. More troublesome, the folding process is not easy due to the folding mode, and the folding process becomes very unstable and is difficult to control because the gravity center of the folded car body is obviously shifted.
There is also another folding of the bicycle, supported by the "X" shaped body bracket, by compressing the "X" shape for the purpose of deformation. The method is a typical method for controlling the deformation by using a hinge principle, and has the advantages that the 'compression folding' with the fulcrum can ensure that the gravity center is unchanged when the folding and unfolding are carried out, and the operation is more convenient. However, there are problems in that the X-shaped body frame has a large limitation in the size of the vehicle body, and the vehicle body has poor stability against pressure and limited load-bearing capacity.
Due to the evolution of the "X" shaped body frame, there are also products on the market today that allow folding of the body by means of articulated quadrilateral structures, since quadrilaterals have a relative deformability. Through setting up limit structure cooperation quadrangle deformation alone, can reach the effect of automobile body folding locking. However, in the case of a folding frame, the "folding" is the first function, the second capability is to keep the vehicle body stable when it is opened, and most quadrilateral structures are difficult to completely stabilize, even if they can be realized by a complicated locking structure, so the structure is complicated and the cost is huge. Moreover, these irregularly deformed structures are functionally single, can only be used as deformation elements and do not bring structural advantages to the bicycle.
Disclosure of Invention
The invention aims to: the storage basket for the folding seat of the bicycle can be used as a deformation structure for realizing folding of the bicycle and can be used as an independent bicycle body part to provide additional functions for a bicycle body.
The technical scheme of the invention is as follows: the utility model provides a thing basket is put to bicycle folding seat, includes the articulated deformation structure that forms of a plurality of connecting pieces, and its effect is as connecting the anterior automobile body structure at folding bicycle automobile body and rear portion, can regard as when this automobile body structure expandes (when folding bicycle expandes promptly) to put the thing basket and use simultaneously. Therefore, the structure is a foldable vehicle body structure capable of serving as a storage basket.
The deformation structure that constitutes to put thing basket side has mainly included: the connecting device comprises a first connecting piece, a second connecting piece and a third connecting piece. Wherein the first connecting member and the second connecting member form a main body portion connecting the vehicle body front portion and the vehicle body rear portion. The three connecting pieces form one side surface of the storage basket, and the other side surface is symmetrical to the side surface, and the two side surfaces form a basket body of the storage basket. The folding and unfolding actions of the three symmetrical connecting pieces on the two sides of the storage basket are synchronous, so that the whole storage basket can be folded and unfolded.
Specifically, the two ends of the first connecting piece are respectively hinged with the front part of the vehicle body and the rear part of the vehicle body, the two ends of the second connecting piece are respectively hinged with the front part of the vehicle body and the rear part of the vehicle body, and the position of the second connecting piece is higher than that of the first connecting piece. Meanwhile, the four hinge points are distributed to form a parallelogram structure. Then, the two sides connecting the vehicle body front portion and the vehicle body rear portion in the parallelogram are transverse sides that swing upon folding, and the sides on the vehicle body front portion or the vehicle body rear portion in the parallelogram are oppositely positioned sides.
In this parallelogram structure, the transverse sides serve as the main components for carrying and connecting, their optimal unfolded position, i.e. the horizontal position, and their optimal flipped position, i.e. the extreme position in the folded state, is preferably close to the head tube. Only in these two optimal positions can the deformation structure optimize the changing conditions of the vehicle body. The optimal turning position of the transverse edge is related to the setting angle of the side edge, namely the optimal turning angle of the transverse edge is not more than the maximum included angle between the side edge and the transverse edge, so that the transverse edge can have the turning limit.
Based on the change condition of the parallelogram structure in the folding process, four vertex angles (namely four hinge points) in the parallelogram structure can be classified according to the motion condition of the parallelogram structure. In particular, the four hinge points may include: two rotation pin joints connected to the front part of the vehicle body and two displacement pin joints connected to the rear part of the vehicle body and swinging along the parallelogram deformation track.
According to the structure, the rotary hinge point is fixed at the front part of the vehicle body and is fixed relative to the other two hinge points during the folding process. And two displacement pin joints are swung by taking the corresponding rotating pin joint as the center of a circle and need to be limited in the folding process of the structure. Therefore, the corresponding connecting pieces, namely the first connecting piece and the second connecting piece, generate swing type turnover based on the rotating hinge point.
Corresponding to the turning process, the two displacement hinge points generate a motion track. When the motion trail is controlled, the final folding result can be completed. Therefore, the third connecting piece plays a basic role of track limitation.
Specifically, the third connecting piece is connected in the automobile body front portion through its pin joint, has included on the third connecting piece: and a guide groove determined according to the motion track of the displacement hinge point. Then, during the folding process, the third connecting piece is synchronously turned over with the first connecting piece and the second connecting piece. Simultaneously, when displacement pin joint and groove cooperation, the groove can lead and spacing displacement pin joint. Based on the technical purpose that the third connecting piece will achieve, the technical points that need to be solved on the third connecting piece are as follows: 1. selecting the hinge point position of the third connecting piece; 2. the arrangement of the grooves on the third connecting piece requires.
l selection of the position of the hinge point of the third connecting part
According to the change process of the parallelogram structure (namely the first connecting piece and the second connecting piece), one displacement hinge point is selected, and the displacement hinge point positioned at the upper side is generally selected and marked as a first displacement hinge point. Based on the horizontal position and the flip position in the parallelogram correction process described above, the first displacement hinge point is denoted as an initial position in the horizontal position, and the first displacement hinge point is denoted as an end position in the flip position. Then in practice there is an extreme position of the trajectory of the first displacement hinge point.
The vertical bisector of the connecting line between the initial position and the end position is taken as a boundary, and the hinge point of the third connecting piece is selected in the front area of the vehicle body below the boundary. Namely, the conditions to be satisfied are: the distance from the hinge point of the third link to the initial position is smaller than the distance from the hinge point to the final position. The displacement articulation point can then be limited in the maximum tilting position by means of the groove, and consequently the bearing limit can only be reached in the horizontal position.
Preferably, the selection of the hinge point of the third connecting element also needs to consider the problem of the movement track of the first displacement hinge point and the movement track of the groove inversion, namely, the position of the third connecting element is higher than the first displacement hinge point.
l arrangement requirement of grooves on third connecting member
According to the determination of the initial position and the end position, the positions of the two ends of the groove are determined correspondingly to the third connecting piece. Then the kinematic feasibility of the arrangement needs to be verified, then it needs to be determined: and the swinging track of the first displacement hinge point is a path which is overlapped with the overturning track of the groove, and the extreme positions of the two ends of the path are not the extreme positions of the first displacement hinge point. That is, the extreme position of the lowest end of the path should be the initial position of the first displacement hinge point in the unfolded state of the deformable structure, and the extreme position of the highest end of the path should be the final position of the first displacement hinge point in the folded state of the deformable structure.
Based on the design principle, the design parameters of the deformation structure are closely related to the folding state, and the length and the height of the deformation structure are also related. Thereby defining a top edge portion of the deformation structure, generally represented by the top surface of the third link, which can carry the bench. Then, under the premise that the parallelogram structure is established, the height of the deformation structure is determined by the top edge of the cover, which is mainly represented by the distance from the first displacement hinge point to the high top edge.
Therefore, the optimal scheme of the deformation structure can be obtained by combining the design conditions.
The deformation structure is used as the side surface of the basket body of the basket, and the two deformation structures are symmetrical, namely two side surfaces of the basket. The two basket sides, the front part of the vehicle body and the rear part of the vehicle body form the whole basket, and the basket also forms a vehicle body part which is positioned between the front part of the vehicle body and the rear part of the vehicle body and has the capability of folding, deforming and bearing a rider.
Based on the technical scheme, the invention also protects the folding bicycle with the article holding basket.
The folding bicycle comprises a bicycle body front part and a bicycle body rear part, wherein the bicycle body front part comprises a head pipe for mounting a handlebar and a front wheel, and the bicycle body rear part comprises a middle block for mounting a rear wheel. The bicycle folding seat storage basket is arranged between the head pipe and the middle block and comprises a deformation structure forming the side face of the basket body.
Furthermore, the folding bicycle also comprises a stool, and the front end of the stool is connected to the head pipe through a hinged pull rod. The stool and the deformation structure are turned synchronously, and the bottom surface of the stool is in plane contact with the top edge part of the deformation structure.
The invention has the advantages that: the storage basket of the folding seat of the bicycle is reasonable in design, and deformation is controlled within the optimal variation range by using the geometric principle and the mechanical connection principle. Moreover, the structure is simple, the preparation cost can be controlled, and the installation and the maintenance are extremely convenient. From the whole condition of structure, this structure deformability is comparatively superior, and the deflection control is in the structural standard within range, and bearing capacity is better moreover, has utilized the size auto-lock principle among the mechanical structure to reach and has born the balance, has optimized overall structure.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a schematic view of a foldable bicycle in an unfolded state;
FIG. 2 is a schematic view of a folding state of the foldable bicycle;
FIG. 3 is a structural view of a one-sided deformed configuration in an expanded state;
FIG. 4 is a structural view of a one-sided deformed configuration in a folded state;
FIG. 5 is a diagram showing a trajectory of a structure of the deformed configuration in an expanded state;
FIG. 6 is a track diagram of a structure diagram of a deformed configuration in a folded state;
FIG. 7 is a geometric diagram principle of determining the selected area of the E point;
fig. 8 is a geometry diagram principle of determining the E point.
The various references in the drawings are: 1. a head pipe; 2. a middle block; 3. folding the seat storage basket; 4. a stool; 5. a first connecting member; 6. a second connecting member; 7. and a third connecting member.
Detailed Description
Preferred embodiment 1 of the present invention:
as shown in fig. 1 to 4, the folding bicycle of the present invention includes a head pipe 1, a folding seat basket 3, and a middle block 2. A front fork rod and a handle upright rod are sleeved in the head pipe 1, and a front wheel is arranged on the front fork; a foldable rear fork is arranged on the middle block 2, and a rear wheel is arranged on the rear fork; between the head tube 1 and the middle block 2 is a folding seat basket 3.
The folding seat storage basket 3 comprises two symmetrical deformation structures, and each single-side deformation structure independently forms one side face of the storage basket. The deformation structures on the two sides are symmetrical, and the actions are kept synchronous when the deformation structures are folded.
The unilateral deformation structure comprises a first connecting piece 5, a second connecting piece 6 and a third connecting piece 7 from bottom to top in sequence. The hinge point A of one end of the first connecting piece 5 is arranged on the head pipe, and the hinge point B of the other end of the first connecting piece is arranged on the middle block. The pin joint C of 6 one ends of second connecting piece is installed on the head pipe, and the pin joint D of its other end is installed on well piece, and the pin joint E of 7 one ends of third connecting piece is installed on the head pipe, and the other end is a spout GF to install the sliding shaft on the pin joint D of well piece, can follow spout GF and make a round trip to slide. The deformation structure at the other side of the storage basket is completely symmetrical with the storage basket.
As shown in fig. 5, the marks of the hinge point and the two ends of the sliding groove on the connecting element are simplified into geometric figures, the first connecting element 5 is marked as AB, the second connecting element 6 is marked as CD, and the third connecting element 7 is marked as EFG. The four hinge points of ABCD form a parallelogram and the groove FG on the third link 7 cooperates with point D, i.e. point D can slide along a straight line FG.
The third connector (EFG) is a piece of sheet material, the uppermost edge of which is designated as top edge I. The top edges of the two sides of the storage basket are symmetrical to bear the stool 4, the front end of the stool 4 is hinged to the two sides of the head pipe through an H shaft, and the stool 4 and the two side deformation structures turn over synchronously.
as shown in fig. 5 and 6, when the parallelogram ABDC is deformed, the motion trajectory of point D is an arc with point C as the center and the length of CD as the radius, and is denoted as arc D. When the EFG plate is synchronously turned over, the motion trail of the point F is an arc which takes the point E as the center of a circle and takes the length of the point EF as the radius and is marked as an arc F; the motion trail of the point G is an arc taking the point E as the center of a circle and the length of EG as the radius, and is recorded as an arc G. EG > EF is designed, because the D point is limited to slide in the GF groove, the length of ED is variable, and EG is more than or equal to ED and more than or equal to EF.
The intersection point of the arc D and the arc g is set as D1(ii) a The intersection point of the arc D and the arc f is D2. The motion track of the point D with the point C as the center is limited to the D of the circular arc D1D2And (4) section.
When point D travels counterclockwise along arc D to position D1, ED = EG, point D slides in the FG chute to point G. If the point D moves along the arc D counterclockwise beyond D1ED at the time of position>EG can not satisfy that EG is more than or equal to ED and more than or equal to EF, so that D point can not exceed D by anticlockwise movement along arc D1And (4) point. When the parallelogram ABDC deforms to the state (as shown in figure 6), the deformation structure of the storage basket is in a folded state (as shown in figure 4); in this state, the AB and CD sides of the parallelogram ABDC, i.e., the first link 5 and the second link 6, are sufficiently overlapped, and the third link 7 is also sufficiently overlapped with the first and second links since the D point slides to the G point.
When point D travels clockwise along arc D to position D2, ED = EF, where point D slides right to F in the FG chute. When the parallelogram ABDC deforms to the state (as shown in figure 3), the deformation structure of the storage basket is in an unfolded state (as shown in figure 5); in this state, the AB side and the CD side are separated from each other, and the point D slides to the point F, so that the distance between the i side and the CD side is also the farthest, and the first, second, and third links are in a fully expanded state. When this expansion state, four pin joints of design ABDC lock, and the ABDC quadrangle also is fixed can't deform again with whole frame, becomes the stable state of riding.
Preferred embodiment 3 of the present invention:
a stool 4 is arranged on the upper side of the third connecting piece 7 (EFG), and the top edge I of the third connecting piece 7 (EFG) is used as a bearing edge which can be in plane contact with the bottom surface of the stool 4; the storage basket is of a symmetrical structure, the side face of the other basket body of the storage basket is provided with a top edge symmetrical to the edge I, and the two top edges play a bearing role. The front end of the stool 4 is hinged on the head pipe 1 through an h-axis. The stool can be freely turned, and when the seat is turned, the bottom surface of the stool 4 slides relative to the top edge I. The folding process is reflected in the state of the stool 4:
and (3) retracting the stool: when the folding stool is folded, the top edge I pushes the stool 4 to lean against the head pipe 1, and the stool 4 and the storage basket are both in a folding and contracting state.
Unfolding the stool: when the folding stool is unfolded, the point D slides in the FG groove, and meanwhile, the top edge I is pushed to be far away from the CD, so that the top edge I is higher than the edge of the CD by a distance (the distance is set to be h) when the folding stool is unfolded, and the folding stool 4 is turned over to the top edge I.
When the stool bears the weight, the GF groove is stressed downwards, namely the D point has the tendency of sliding to the G point in the FG groove. Since the ABDC quadrilateral is in a dead lock state, ED is a fixed length that cannot be changed, ED = EF; assuming that point D slides to any point in the FG slot under force, the length of ED is greater than EF, and point D cannot slide in the direction of point G. Therefore, when the bench 4 bears the weight, the EFG sheet is in a stable state.
the choice of parameters for the parallelogram ABDC in the deformed configuration can be designed according to industry specifications or based on conventional dimensional requirements. When the first connecting piece 5 (AB) and the second connecting piece 6 (CD) are determined, the moving track of the point D serving as a first displacement hinge point can be determined. As shown in fig. 7, the deformed structure is in an unfolded state, i.e., the position of point D, and in a folded state, i.e., the position of point D1.
The selection range of point E is: connecting D point with D1Dot, line segment DD1Point E if any point on the lower right of the head tube cut by this perpendicular bisector (shaded portion) is selected, ED1Are both greater than ED; e if any point on the upper left of the head tube cut by the perpendicular bisector is selected, ED1Are both less than ED.
The design requires short distance between E and F (D), and E and G (D)1Point) distances are longer, ED1>ED, and therefore point E should be chosen to be in the shaded portion of the head tube.
selection of the position of point G on the EFG plate:
as shown in FIG. 8, the top surface of the third connecting member 7 (EFG) is of a deformed structureIs denoted as top edge I. Top edge I and CD1Parallel, top edge I and CD1Is set as x.
The design of the invention is that the top edge I is parallel to the CD when unfolded, and the height between the top edge I and the CD edge when unfolded is set as h according to the required seat height.
When the EFG board is unfolded, a line L parallel to the CD is made on the EFG board, and the height of the line L from the CD is h-x; because when folded D1Distance x from top edge I, and D1 coincides with point G, so point G should be chosen on line L at deployment, taking into account the following two variables:
the distance of line L from the CD line is h-x, h is a designable variable according to the required height of the seat, and the distance of F from the top edge I during folding is also h, so h also influences the width of the folded frame.
When the position of the G point is unfolded and folded, the interference and avoidance with other parts on the frame are considered; the farther to the right the point G is designed on line L, the lower the point F is when folded, and vice versa.
In the expanded state, the position of point D is determined, so point G is determined and the groove FG is determined.
determining the position of an E point:
connection D on the basis of example 51Point and point G, line D1The perpendicular bisector of G.
The point E being taken on this perpendicular bisector, i.e. ED1=EG。
Point E is the axis of the link pipe and the EFG sheet, so EF and ED are the same line on the EFG sheet in different folded and unfolded states, i.e., ED = EF. Following ABDC (AB)1D1C) Twisting of the parallelogram, change in the dimension of ED, D (D)1) The points can slide in the FG tracks to realize the folding and unfolding of the seat driven by the EFG sheet.
Because the design is unfolded with the top edge I parallel to the CD (and can also be designed to be at an angle to the CD), and because the design is folded with the top edge I1Parallel to CD1. So that the top edge I and the top edge I1The formed angle is equal to < D >1CDs, i.e. vehicles from folded to unfoldedIn the opening process, the angle of the EFG sheet is equal to < D1CD. Thus determining the position of point E, i.e. at D1Finding a point E on a vertical bisector of G to satisfy the angle D1EG=∠D1CD. At the same time, the E point is ensured to be at the invisible part of the head pipe (figure 7) to meet ED1>ED, EG on EFG plate>Otherwise, the height of the L line and the left and right positions of the G point need to be adjusted to search the E point again.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed herein be covered by the appended claims.
Claims (10)
1. The article basket of the folding seat of the bicycle comprises a deformation structure formed by hinging a plurality of connecting pieces; the method is characterized in that: the deformation structure comprises a first connecting piece, a second connecting piece and a third connecting piece;
the first connecting piece and the second connecting piece are synchronously hinged with the front part of the vehicle body and the rear part of the vehicle body to form a parallelogram structure with four hinged points on the first connecting piece and the second connecting piece as vertex angles;
the hinge point of the parallelogram structure comprises: the two displacement hinge points are connected to the two rotating hinge points on the front part of the vehicle body and connected to the rear part of the vehicle body and swing along a parallelogram deformation track;
the first connecting piece and the second connecting piece are turned over based on the rotating hinge point;
the third connecting piece is connected with the front part of the vehicle body through a hinge point of the third connecting piece and synchronously overturns with the first connecting piece and the second connecting piece; the third connecting piece comprises: a guide groove determined according to a movement track of the displacement hinge point;
the displacement hinge point is matched with the groove to generate state control of structural folding change.
2. The bicycle folding seat storage basket of claim 1, wherein: the two displacement hinge points comprise: a first displacement hinge point cooperating with the slot; the deformation structure is folded on a path where the swing track of the first displacement hinge point coincides with the turning track of the groove.
3. The bicycle folding seat storage basket of claim 2, wherein: the swing track of the first displacement hinge point comprises: the initial position that deformation structure expanded state first displacement pin joint place, deformation structure fold condition under termination point that first displacement pin joint place.
4. The bicycle folding seat storage basket of claim 3, wherein: the initial position and the final position are opposite positions on the third connecting piece, namely two ends of the groove.
5. The bicycle folding seat storage basket of claim 3, wherein: the distance between the hinge point of the third connecting piece and the initial position is smaller than the distance between the hinge point and the final position.
6. The bicycle folding seat storage basket of claim 2, wherein: comprises a basket body side surface; the side surface of the basket body comprises the deformation structure; and two opposite basket side surfaces are connected between the front part and the rear part of the vehicle body to form a load-bearing vehicle body.
7. The bicycle folding seat storage basket of claim 6, wherein: the deformation structure comprises a top edge part for bearing the stool.
8. The bicycle folding seat storage basket of claim 7, wherein: the distance from the first displacement hinge point to the top edge part is the folding size of the deformation structure.
9. A folding bicycle having the bicycle folding seat basket of claim 6, comprising a front body part, a rear body part; the method is characterized in that: the front part of the vehicle body comprises a head pipe for mounting a handlebar and a front wheel; the rear part of the vehicle body comprises a middle block for mounting a rear wheel; a storage basket of the folding seat of the bicycle is arranged between the head pipe and the middle block; the bicycle folding seat storage basket comprises a deformation structure forming the side face of the basket body.
10. The folding bicycle of claim 9, wherein: also comprises a stool; the front end of the stool is connected to the head pipe through a hinged drawer; the stool and the deformation structure are turned over synchronously; the bottom surface of the stool is in plane contact with the top edge part of the deformation structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010503449.5A CN111619714B (en) | 2020-06-05 | 2020-06-05 | Article basket of folding seat of bicycle and folding bicycle |
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| CN202010503449.5A CN111619714B (en) | 2020-06-05 | 2020-06-05 | Article basket of folding seat of bicycle and folding bicycle |
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| CN111619714B true CN111619714B (en) | 2021-07-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105722752B (en) * | 2013-09-10 | 2019-01-22 | 城市626有限责任公司 | Folding electric vehicle |
| CN104554578B (en) * | 2014-09-05 | 2017-11-07 | 泉州锦宝贸易有限公司 | A kind of multifunctional electric |
| CN105644683A (en) * | 2014-12-02 | 2016-06-08 | 彭加桂 | Folded tricycle and punching pipe coiling element thereof |
| CN105480342B (en) * | 2016-01-19 | 2018-03-02 | 嘉兴小虎子车业有限公司 | Foldable child tricycle and its method for folding |
| CN205499202U (en) * | 2016-01-28 | 2016-08-24 | 中山游友电动车有限公司 | Seat box and foldable electric scooter |
| CN207997942U (en) * | 2017-04-24 | 2018-10-23 | 浙江泓源汽车集团有限公司 | The car body foldable structure of electric vehicle |
| CN108407956B (en) * | 2018-04-09 | 2024-04-26 | 广东群旺科技股份有限公司 | Folding frame |
| CN210437297U (en) * | 2019-08-09 | 2020-05-01 | 天津水石工业设计有限公司 | Electric vehicle saddle with storage space |
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