WO2013037252A1 - 一种折叠购物车 - Google Patents

一种折叠购物车 Download PDF

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Publication number
WO2013037252A1
WO2013037252A1 PCT/CN2012/079822 CN2012079822W WO2013037252A1 WO 2013037252 A1 WO2013037252 A1 WO 2013037252A1 CN 2012079822 W CN2012079822 W CN 2012079822W WO 2013037252 A1 WO2013037252 A1 WO 2013037252A1
Authority
WO
WIPO (PCT)
Prior art keywords
folding
shopping cart
vertical
wheel
rod
Prior art date
Application number
PCT/CN2012/079822
Other languages
English (en)
French (fr)
Inventor
朱开一
Original Assignee
Zhu Kaiyi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN2011102760104A external-priority patent/CN102991548A/zh
Priority claimed from CN201110424348XA external-priority patent/CN103158816A/zh
Application filed by Zhu Kaiyi filed Critical Zhu Kaiyi
Priority to EP12831444.0A priority Critical patent/EP2757020A1/en
Priority to CN201280038333.2A priority patent/CN103930331B/zh
Publication of WO2013037252A1 publication Critical patent/WO2013037252A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
    • B62B3/027—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible collapsible shopping trolleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/0026—Propulsion aids
    • B62B5/0079—Towing by connecting to another vehicle
    • 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
    • B62K27/00—Sidecars; Forecars; Trailers or the like specially adapted to be attached to cycles
    • B62K27/10—Other component parts or accessories
    • B62K27/12—Coupling parts for attaching cars or the like to cycle; Arrangements thereof
    • 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
    • B62K7/00—Freight- or passenger-carrying cycles
    • B62K7/02—Frames

Definitions

  • the invention relates to a folding shopping cart, in particular to a folding shopping cart suitable for city shopping.
  • the present invention seeks to provide a folding shopping cart that satisfies the aforementioned door-to-door shopping requirements.
  • a folding shopping cart comprising: a riding seat, a vertically foldable shopping basket with wheels, and a steering device; the shopping basket can be switched between a folded position and a deployed position about a folding axis And a locking device for locking the shopping basket frame in an unfolded state, wherein the front and rear longitudinal rows are arranged with at least two rows of wheels, one of which is a driving wheel with a driving device, and the other row is a supporting wheel, at least one of the driving wheel and the supporting wheel One row is a pair of wheels arranged symmetrically left and right.
  • FIG. 1 is a perspective view and a partial detail view of an embodiment of a folding shopping cart of the present invention
  • FIG. 2 is a plan view and a partial detailed view of an embodiment of the folding shopping cart of the present invention
  • Figure 3 is a side elevational view of two embodiments of the folding shopping cart of the present invention.
  • Figure 4 is a side elevational view of two embodiments of the folding shopping cart of the present invention.
  • Figure 5 is a side elevational view of one embodiment of the folding shopping cart of the present invention.
  • Figure 6 is a side elevational view of one embodiment of the folding shopping cart of the present invention.
  • Figure 7 is a perspective view of an embodiment of the folding shopping cart of the present invention.
  • Figure 8 is a side elevation and partial detail view of one embodiment of the folding shopping cart of the present invention.
  • Figure 9 is a side elevational view of one embodiment of the folding shopping cart of the present invention.
  • Figure 10 is a perspective view of an embodiment of the folding shopping cart of the present invention.
  • Figure 11 is a side elevational view of one embodiment of the folding shopping cart of the present invention.
  • Figure 12 is a side elevational view of one embodiment of a folding shopping cart of the present invention.
  • Figure 13 is a schematic view showing two embodiments of the front and rear quick dismounting structure of the folding shopping cart of the present invention
  • Figure 14 is a schematic view of the anti-slip device of the folding shopping cart of the present invention
  • Figure 15 is a schematic view of the folding cantilever driving device on the folding shopping cart of the present invention.
  • Figure 16 is a schematic view of a split type driving device on the folding shopping cart of the present invention.
  • Figure 17 is a side elevational view of one embodiment of a folding shopping cart of the present invention.
  • 1 a front support wheel; 2 - a rear drive wheel; 3 - a vertical folding shaft; 4 a horizontal folding shaft; 5 - a vertical sleeve; 6 - a seat; 7 - a quick disassembly structure; 8 - a longitudinal rod; a vertical locking bar; 10 - third row of driving wheels; 11 - a third row of supporting wheels; 12 - longitudinal telescopic structure, 13 - vertical locking bar docking structure, 14 a hinge hoop, 15 - "" Font bushing; 16-clip, 17-net pocket, 18-X shopping basket, 19-join folding shaft, 20-racing type folding frame, 21-folding cantilever; 22-X-type shopping basket crossbar; 23 - telescopic sleeve; 24 - steering handle; 25 - steering control line; 26 - pedal drive structure, 27 - split drive structure, 28 - seat reverse structure, 29 - vertical steering rod; 30 - short wire interface , 31—One-handed two-way
  • a folding shopping cart comprising: a riding seat 6, a longitudinally foldable shopping basket with wheels, and a steering device; the shopping basket can be longitudinally disposed between a folded position and a deployed position about the folding axis And a locking device for locking the shopping basket frame in an unfolded state, wherein the front and rear longitudinal rows are arranged with at least two rows of wheels, one of which is a driving wheel having a driving device, and the remaining rows are a supporting wheel, the driving wheel and the supporting wheel are at least One of the rows is a pair of wheels arranged symmetrically left and right.
  • the shopping basket can be used with soft net pockets 17 or shopping baskets. It can also be used with modified strollers or disabled seats. It has a variety of light transport.
  • the riding seat 6 is located between several rows of wheels, close to the top of the driving wheel, in order to prevent the driving wheel from slipping or idling, it should be through a suitable force structure. Most of the weight of the rider is transmitted to the drive wheel. It is particularly important to note that the words "before and after" in the text of the present invention are mainly for the convenience of the expression of the illustrated parts in the specification, and are not limited to the direction of travel, the left side of the page. For the front, the right is for the back.
  • the "row” in the text of the present invention is merely for the convenience of expression, and may be two wheels symmetrically symmetrical or one wheel, and the front wheel of the folding shopping cart with the longitudinal two-row wheel structure is the support wheel, and the rear wheel is the driving wheel.
  • the front wheel of the folding shopping cart with the longitudinal three-row wheel structure is the support wheel, and the driving wheel may be the intermediate wheel or the third row wheel.
  • the driving wheel is the third row wheel, it is marked as the third row of driving wheels. 10.
  • the third row of wheels is labeled as the third row of support wheels 11 to avoid confusion between the drive wheel and the support wheel.
  • the shopping basket frame includes a rear end fixing plane 40, the lower end of the fixing plane 40 has a driving wheel 2, the vertical folding axis 3 is divided into a fixed plane 40, and the supporting wheel 1 is located to be foldable left and right.
  • a vertical quadrilateral or triangular shopping basket folded along the arc in the figure is formed, and the vertical vertical folding shaft 3 is closed or the front ends of the two movable folding surfaces are combined to form a triangular shopping basket, and the folding structure is the most .
  • the shopping basket holder includes a rear end fixing plane 40, the lower end of the fixing plane 40 has a driving wheel 2, the horizontal folding shaft 4 is located on the fixing plane 40, the movable folding surface is folded down, and the front end has a support Round 1.
  • the arc is folded along the arc in the drawing, and the horizontal folding axis is located at the upper portion of the fixed plane 40 to form an unfolded shopping basket frame similar to the capital letter A, and the horizontal folding axis is located at the fixed plane 40.
  • the lower part constitutes an expanded shopping basket like the uppercase English letter L. This improvement has the fastest speed in folding the collection during daily use.
  • the shopping basket frame includes a rear end fixing plane 40, the lower end of the fixing plane has a driving wheel 2, and the translational movable folding surface is folded back and forth in a translational manner by means of a plurality of folding axes, and the lower end of the movable folding surface has a supporting wheel 1.
  • such an improvement generally N-folding, or M-folding as shown in the broken line portion of FIG. 4A, can enlarge the front and rear lengths of the folding shopping basket frame in the longitudinal direction of FIG. 4A, and is suitable for a relatively large length dimension.
  • Object transportation can be made by making such a prioritized improvement:
  • the folding axis is a horizontal axis, which is vertically above and below the rear fixing plane 40, and a side parallelogram is formed between the movable folding surface and the rear end fixing plane 40. As shown by the dashed line portion of Fig. 4B, such an improvement makes the folding method quick and simple.
  • the locking device is a side view variable triangle structure between the longitudinal two rows of wheels, with a plurality of horizontal axes as pivot points, and a side view triangular rod structure is formed by rod connection, a triangle One of the lengths is variable and remains locked, corresponding to the folded state and the unfolded state of the shopping basket respectively.
  • Fig. 1, Fig. 7, Fig. 8, and Fig. 9 it is one of the special cases of the side view variable triangle locking device.
  • This structure is beneficial to the overall force optimization of the shopping basket, and the two state transitions of folding and unfolding. Easy, and the locking method is simple.
  • the shopping basket includes an X-shaped shopping basket 18 that is foldable about a connecting folding shaft 19, and the supporting wheel 1 is directly mounted on the front lower end, that is, the front lower limb, and the driving wheel 2 is located at the rear end.
  • the two folding frames of the X-shaped shopping basket are generally rectangular, so as to achieve the largest and most practical shopping basket volume, which is a force-receiving structure in the present invention.
  • the shopping basket is a cantilever basket
  • the shopping basket The utility model comprises a rear end fixing plane 40.
  • the lower end of the fixing plane 40 has wheels.
  • the cantilever folding shopping basket frame is longitudinally folded forward and backward by means of a folding shaft.
  • the steering device comprises a vertical steering rod 29 on the rear end fixing surface, and the vertical steering rod 29
  • a longitudinal rod 8 is longitudinally extended forwardly, and the other end of the longitudinal rod 8 is mounted with a driving wheel to form a longitudinal two-row wheel structure.
  • One of the two ends of the longitudinal rod 8 is in a vertical sleeve manner and a vertical steering rod 29 or a driving wheel.
  • the fork is pivoted. As shown in Fig.
  • the curved arrow in the figure expresses the steerable vertical bushing pivot structure.
  • This cantilever folding structure is more suitable for a small amount of shopping.
  • the specific cantilever basket has various ways, such as the first type, and the left and right side by side. a shopping basket rack that folds the movable side to the folding axis; a second type, a horizontal folding axis or a lower folding axis that matches the shopping basket frame that folds the movable surface; a third type, a shopping basket that folds the folding surface forward and backward; Kinds of X-folded shopping baskets, etc., have been described in detail in the preceding paragraphs of this specification.
  • the longitudinal rod 8 and the vertical steering rod 29 are connected by a quick dismounting structure 7, and the supporting wheels are arranged symmetrically left and right.
  • This structure makes the split shopping basket rack with a row of wheels to be towed in a semi-tilt manner in the shopping mall, especially suitable for old, weak, women to carry out a small amount of shopping, without affecting the re-combination after riding on the road.
  • the normal speed of the line, the quickest disassembly structure 7 is the most convenient and reliable, the short wire pipe thread butt joint, or the socket type + stop pin butt joint, as shown in Fig. 13A, can also be used with the hinge hoop directly
  • the vertical steering rod 29 is connected as shown in Fig. 13B.
  • the front lower end of the cantilever has a support wheel, which constitutes a longitudinal three-row wheel structure, and the longitudinal rod and the vertical steering rod are connected by a quick disassembly structure 7 .
  • a support wheel which constitutes a longitudinal three-row wheel structure
  • the longitudinal rod and the vertical steering rod are connected by a quick disassembly structure 7 .
  • a quick disassembly structure 7 As shown in Fig. 10, such a structure can use a large shopping basket rack, and part of the car body can be separated from the shopping place when shopping, and the shopping basket rack part can be implemented in the shopping place without losing flexibility.
  • the steering device is located on the support wheel. As shown in Figures 1 and 5, such improvements make steering flexible.
  • the vertical fork of the support wheel is pivotally connected to the front lower end of the folding shopping basket in a vertical sleeve manner, and the vertical fork has a lateral steering handle 24, and the steering handle 24 It is controlled by the left and right swing in the line manipulation mode.
  • the single-handed one-way two-way steering gear 31 is gripped by one hand, and the right and left steering can be achieved by turning the steering control line 25 forward and backward.
  • the lower left partial detail in Fig. 1 is clearer.
  • the ground reveals its structural principle.
  • the steering device includes a vertical direction standing on the rear end fixing surface a steering rod 29, the drive wheel 2 is connected to a vertical steering rod 29, the vertical steering rod 29 is connected to the rear fixed surface 40 and the drive wheel 2, one of which is the pivot of the vertical sleeve Connected structure.
  • the vertical bushing pivoting provides a steering function, which is convenient and low in manufacturing cost.
  • the vertical steering rod extends forwardly from a longitudinal rod 8, and the end thereof also has a third row of support wheels 11 which constitute a longitudinal three-row wheel structure.
  • a three-row wheel structure greatly increases the stability of the entire vehicle, thereby increasing the cargo load of the shopping basket.
  • the longitudinal rod 8 and the vertical steering rod 29 are connected to the quick-disconnect structure 7. As shown in Fig. 3B, such an improvement is to split the folding shopping cart, and the shopping basket portion is separately entered into the shopping place, thereby increasing the flexibility of implementation.
  • the drive wheel 2 is directly mounted on the lower rear end of the X-shaped shopping basket, that is, on the rear lower limbs. As shown in Figure 5, such an improvement has overall performance optimizations such as push stability, riding stability, and folding convenience.
  • the drive wheel can also be mounted on the longitudinally extending rod of the lower limb portion of the folded rectangular frame, and the rectangular frame evolves into The racket type folding frame 20 is evolved into a letter K) if the driving wheels are uniformly distributed on the left and right sides.
  • the drive wheel 2 is mounted on the vertical lock lever 9, and the upper and lower limbs of the X-shaped shopping basket are pivotally connected to the vertical lock lever 9 in a horizontal sleeve manner.
  • FIG. 7 and FIG. 8 such an improvement is easy to realize the distance control between the upper and lower horizontal bushings, lock the shopping basket frame unfolding state, the driving is stable and the folding is convenient, and the connection between the driving wheel 2 and the vertical locking bar 9 is achieved.
  • the point can be above the horizontal bushing or below the horizontal bushing, as shown by the dashed line in Figure 8A, or between the two horizontal bushings, as shown in Figure 8B, to facilitate multiple types of structural forces. optimization.
  • the steering device comprises a vertical locking lever 9 extending forwardly from a longitudinal rod 8, and the other end of the longitudinal rod 8 has a third supporting wheel 11 forming a longitudinal three-row wheel structure, the longitudinal rod One of the two ends is pivotally connected to the vertical locking lever or the third wheel fork in a vertical sleeve manner.
  • the vertical bushing pivoting provides a steering function, which is the most convenient structure, stability and large cargo capacity in the present invention. It One, because its overall unfolding structure is similar to a traditional tricycle.
  • the longitudinal rod 8 and the vertical locking rod 9 are connected by a quick dismounting structure 7. As shown in Fig. 9, such an improvement is to leave the front of the car while shopping, reduce the space occupied during shopping, and increase the flexibility of the shopping basket in the shopping place.
  • the intermediate drive wheel 2 is interchanged with the third wheel, the longitudinal rod end becomes the third row of drive wheels 10, and the intermediate wheel becomes the support wheel.
  • the driving structure has a large free space, which can be made more precise, more complicated, and more bulk than in the middle.
  • the horizontal bushings at both ends of the vertical lock lever 9 can slide laterally along the rear upper and lower limb rails 22 of the X-shaped shopping basket.
  • This improvement is to further shorten the length after the vehicle is repeatedly folded twice, as indicated by the arrow 41 in Fig. 1, the first folding refers to the folding of the X-shaped shopping basket, and the second folding refers to the vertical locking. The folding of the rod.
  • the X-shaped shopping basket has zero upper limb length before. Such a structure is generally suitable for stroller modification.
  • the X-shaped shopping basket 18 has two folding shaft holes, which are arranged in one of the long folding frames, and the other two short folding frames are crossed by the end folding axis. The ground is pivoted to it.
  • the short folding frame is generally an open rectangle, which is a variant of the X-shaped folding shopping basket. The front and rear lengths are extended after the unfolding, and the shopping basket has a larger length, which is suitable for large baby sleeper modification.
  • the connecting folding shafts 19 of the X-shaped shopping basket frame 18 are parallel double shafts, respectively pivoted on two folding frames, and the parallel double shafts are connected by short rods. This improvement is to improve the force structure of the folding shopping basket.
  • the folding shaft 19 of the X-shaped shopping basket 18 is mounted at one end on a spring buffer structure 32 placed in parallel on the folding frame. As shown in Fig. 7 and Fig. 8A, such an improvement effectively improves the buffering capacity of the shopping basket, and is suitable for rugged bumpy road surfaces.
  • the transverse bushing also has a vertical bushing movably connected to the vertical locking bar 9, forming a cross-shaped bushing 15. As shown in Figures 1, 7, and 10, such an improvement is to concentrate multiple functions on one part, such as a vehicle steering function, such as the X-shaped shopping basket when the sleeve is folded along the vertical locking rod 9 The up and down sliding function improves the overall reliability and production efficiency of the vehicle assembly. It is also possible to make such a prioritized improvement:
  • the horizontal bushing is a hinge hoop 14, which is pivotally connected to the X-shaped shopping basket frame 18 - the side upper and lower limb rails 22. As shown in Fig. 7, such an improvement makes the hinge hoop 14 open from the crossbar 22 when the X-shaped shopping basket is folded, which is adapted to greatly change the distance between the upper and lower limbs 22 when the X-shaped shopping basket is folded. .
  • the vertical lock lever 9 is divided into two upper and lower sections, and is connected in the middle by a quick release docking structure 13. As shown in FIG. 7 , the problem that the distance between the upper and lower limb rails 22 is greatly changed after the folding of the X-shaped shopping basket 18 is solved, and the quick-release docking structure 13 generally selects the short-wire tube to be docked, and the socket + can also be selected.
  • the retraction pin is docked as shown in Fig. 13A.
  • the vertical lock lever 9 is a telescopic rod.
  • the outer telescopic sleeve 23 also solves the problem that the distance between the upper and lower limb rails 22 after the X-shaped shopping basket is greatly changed when folded.
  • the riding seat 6 is directly mounted on the vertical lock lever 9.
  • the connection between the riding seat 6 and the vertical locking lever 9 may be a seat rod or no seat rod as an intermediate rod, and such an improvement allows the weight of the rider to be directly transmitted to the rear drive wheel 2, Reduce the stress on the X-shaped shopping basket.
  • the vertical locking bar 9 is slidable with the cross-shaped bushing 15, and the vertical locking bar 9 is foldably connected in two sections, wherein a length of the X-shaped shopping basket The distance between the upper and lower limb rails 22 when the rack is opened.
  • Such a sliding fit improves the folding speed of the X-shaped shopping basket frame, and the vertical locking bar folds down when the X-shaped shopping basket frame is deployed, preventing the upwardly extending vertical locking bar from obscuring the rider's
  • the line of sight is shown in Figure 10.
  • the steering device comprises a pivotal connection between the vertical locking lever 9 and the drive wheel 2 with a vertical bushing 5.
  • the vertical bushings 5 in Figures 8A and B provide a steering function that reduces the manufacturing cost.
  • the drive wheel 2 has a longitudinal telescopic structure 12
  • the drive wheel fork is connected to the longitudinal guide rod
  • the vertical lock rod 9 has a guide hole for mounting the longitudinal guide rod, the guide rod and The guide holes can slide longitudinally.
  • the folding shopping cart has a riding seat position changing structure. This improvement is based on the overall center of gravity adjustment of the empty and full-loaded vehicles, so as to increase the driving stability of the vehicle and the full-vehicle return.
  • the riding seat 6 is mounted on the vertical lock lever 9, and the positional change is a symmetrical position about the front and rear of the vertical lock lever 9.
  • a seat reverse structure 28 is the method of changing the center of gravity of the vehicle to the maximum extent.
  • the utility model has the function of greatly adjusting the center of gravity of the whole vehicle.
  • the symmetrical position can be achieved by two methods. First, the pivoting of the vertical locking bar 9 is pivoted 180 to achieve a symmetric change of the seat position, as shown by the curved arrow in FIG. It is the matching of the longitudinal guide hole on the vertical locking rod 9 with the longitudinal guide rod of the seat, as shown by the horizontal arrow in FIG. 12, to achieve a symmetric change of the seat position in the forward or reverse direction.
  • the drive structure is a split type pedal drive structure 27, and the active part of the foot is mounted on the side of the longitudinal rod 8. As shown in Figure 9, this improvement optimizes the drive structure layout and increases the rider's lame comfort.
  • the upper part of the quick dismounting structure is an open shaft seat 33, and the lower part is a centering pipe stub interface 30, and the split type driving device is a bevel gear drive, which is located in the butt pipe.
  • the split type driving device is a bevel gear drive, which is located in the butt pipe.
  • the cross-shaped bushing 15 has a slip preventing device between the X-shaped shopping basket crossbar 22 or the vertical locking lever 9.
  • a slip preventing device between the X-shaped shopping basket crossbar 22 or the vertical locking lever 9.
  • Such an improvement enables the shopping basket to be deployed in a state-locking function by means of a cross-shaped bushing, so that the lateral sliding locking function can also be realized.
  • the most simple sliding structure is to open a screw hole in the sleeve, and to connect the shaft with a bolt. The sleeve is locked with the shaft or locked by the friction generated by the bolt pressure.
  • the anti-slip device comprises a sleeve opening groove and an in-line clamp 16 is embedded. As shown in Fig. 14, such an improvement does not impair the rod itself in the sleeve, and the slip prevention also maintains the relative rotation between the inner shaft and the outer sleeve, and the tightening operation of the jaw 16 is very easy.
  • the drive wheels are one, and at least one row of support wheels are arranged symmetrically left and right. As shown in Figure 1, Figure 7, and Figure 10, this improvement is to maintain the stability of the vehicle.
  • the driving single wheel is smaller than the driving symmetric double wheel, and the volume is smaller when multiple folding, the double folding refers to the folding of the shopping basket frame, and the double folding refers to the vertical locking rod 9 or the vertical steering. The two parts of the front and rear body of the rod 29 continue to fold.
  • the drive device is a conventional bicycle pedal drive structure. As shown in Figure 1, Figure 5 and Figure 9, the improvement is the most environmentally friendly. It can be chain-driven, beveled or directly driven by the pedal axle. These are the common traditional bicycles and tricycles. In the driving mode of the baby carriage, a shifting mechanism can be added to these driving structures to bring more speed and convenience to the rider.
  • the driving device is a foldable cantilever pedal driving structure
  • the folding cantilever 21 - the end sleeve is pivotally connected to the driving wheel axle 45
  • the folding cantilever 21 passes between the adjacent frame
  • the root angle control lever determines the different angles for folding purposes.
  • the optimal structure of the angle control rod is curved, and the angle control rod has a plurality of positioning holes, which are positioned by the positioning pins.
  • the improvement is to retract the cantilever 21 when entering the shopping place, and reduce the shopping basket.
  • the overall length increases the flexibility of the shopping basket to move within the shopping venue, and also accommodates the rider's body extension comfort requirements.
  • the folding cantilever pedal drive structure allows the rider to properly stretch the body and coordinate the limbs.
  • the drive device is an in-wheel motor drive structure. This improvement is the most tidy appearance of the vehicle, as many mechanical drives and transmissions are reduced.
  • the drive device is an internal combustion engine drive structure.
  • Such an improvement has the advantage of long-distance transportation, and overcomes the power problem that the human and battery are not durable.
  • the folding shopping basket frame includes a row of supporting pair wheels which are attached to the rear of a conventional bicycle in a quick disassembly structure, and the front and rear portions of the conventional bicycle are connected by the quick dismounting and docking structure 7.
  • a longitudinally detachable three-row wheel structure is improved, and the simple front two-row wheel can be used as a conventional bicycle, or the simple rear two-row wheel can be used as a shopping cart, and the whole three-row wheel can be used as a transport vehicle.
  • the folding shopping basket comprises an X-fold shopping basket 18, and the bicycle rear quick-release structure is such that the X-shaped folding shopping basket is on one side of the rectangular folding frame
  • the lower limb rails 22 are coupled to the seat post 42 in a hinged hoop manner.
  • This kind of improvement is the most simple quick-release connection structure.
  • the hinge hoop can be replaced by other quick connection methods, which can be conveniently installed on the existing small wheel bicycle.
  • such a folding shopping basket is similar. It can also be installed on the front of the bicycle head, which has basically the same effect.
  • the folding shopping basket comprises an X-fold shopping basket 18
  • the bicycle rear quick-release structure is such that one side of the X-fold shopping basket 18 has a rectangular folding frame
  • the upper limb rail 22 is connected to the seat rod 42 by a hinge hoop, and the lower side of the lower side folding frame 22 is disconnected from the same side, and the two ends of the fracture are respectively inserted into the two ends of the drive wheel shaft 45 by the tube shaft 7 connection.
  • the hinge hoop here can also be replaced by other similar connection methods
  • the pedal drive here can also be replaced by the wheel electric drive.
  • Such an improvement is one of the optimal combination structures of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Handcart (AREA)

Abstract

折叠购物车，包括骑行座椅，具有轮子的可纵向折叠的购物篮架，转向装置；购物篮架可绕折叠轴纵向在折叠位置与展开位置之间转换，还包括将购物篮架锁定在展开状态的锁止装置，前后纵向排列至少有两排轮，一排为具有驱动装置的驱动轮，其余排为支撑轮，驱动轮和支撑轮至少其中之一排是左右对称布置的对轮。展开状态既能够慢速推行，又能快速骑行，同时免去了二次搬运转载，折叠收藏体积小。

Description

一种折叠购物车
本申请要求如下中国专利申请的优先权， 其全部内容通过引用结合在 本申请中：
1 ) 2011年 9月 16日提交中国专利局、 申请号为 201110276010.4、 发 明名称为"一种折叠购物车"的中国专利申请。
2 ) 2011年 12月 16 日提交中国专利局、 申请号为 201110424348.X、 发明名称为 "一种轻便购物车"的中国专利申请。
技术领域
本发明涉及一种折叠购物车， 尤其是适用城市购物的折叠购物车。
背景技术
现代城市家庭分工日趋细密， 有许多家庭出现全职太太或保姆， 购买 蔬菜、 食品等已经成为这些人的主要家务工作之一， 但是这些人一般不会 骑摩托车等机动工具， 而自行车的载货又有限， 因此提供一种可以比较多 的载货并且容易购物推行是非常有必要的； 同时高层电梯公寓的兴起， 大 型购物场所汽车停车位的紧张及购物超市附近的交通堵塞， 都迫切需要一 种适应短距离购物但是总体体积远远小于一般小轿车的购物车。
本发明试图提供一种能够满足上述门到门购物要求的折叠购物车。
发明内容
一种折叠购物车， 其改进在于： 包括骑行座椅、 具有轮子的可纵向折 叠的购物篮架、 转向装置； 所述购物篮架可绕折叠轴纵向在一折叠位置与 展开位置之间转换， 还有将购物篮架锁定在展开状态的锁止装置， 前后纵 向排列至少有两排轮， 其中之一为具有驱动装置的驱动轮， 其余排为支撑 轮， 驱动轮和支撑轮至少其中之一排是左右对称布置的对轮。
通过这样的改进， 解决了三个问题， 一是商场内购物时至少三轮落地 稳定慢推行、 同时兼顾运输路上至少三轮落地稳定快骑行两种移动方式， 二是购物篮架折叠状态时占用 4艮小的家庭体积； 三是进出购物场所或者电 梯公寓不需要二次搬运转载， 节省停车位和购物人体力， 緩解大型购物超 市附近的汽车堵塞， 实现门到门的轻松购物。
附图说明
图 1是本发明折叠购物车的一个实施例立体视图及局部详图； 图 2是本发明折叠购物车的一个实施例俯视图及局部详图；
图 3是本发明折叠购物车的二个实施例侧视图；
图 4是本发明折叠购物车的二个实施例侧视图；
图 5是本发明折叠购物车的一个实施例侧视图；
图 6是本发明折叠购物车的一个实施例侧视图；
图 7是本发明折叠购物车的一个实施例立体视图；
图 8是本发明折叠购物车的一个实施例侧视图及局部详图；
图 9是本发明折叠购物车的一个实施例侧视图；
图 10是本发明折叠购物车的一个实施例立体视图；
图 11是本发明折叠购物车的一个实施例侧视图；
图 12是本发明折叠购物车的一个实施例侧视图；
图 13是本发明折叠购物车上前后快拆装结构的二个实施例示意图； 图 14是本发明折叠购物车上止滑装置示意图；
图 15是本发明折叠购物车上折叠悬臂驱动装置示意图；
图 16是是本发明折叠购物车上分体式驱动装置示意图；
图 17是本发明折叠购物车的一个实施例侧视图。
1一前支撑轮； 2—后驱动轮； 3—竖向折叠轴； 4一横向折叠轴； 5—竖 向轴套； 6—座椅； 7—快拆装结构； 8—纵向杆； 9一竖向锁止杆； 10—第 三排驱动轮； 11一第三排支撑轮； 12—纵向伸缩结构， 13—竖向锁止杆对 接结构， 14一合页抱箍， 15—"" 字型轴套； 16—夹圏， 17—网兜， 18—X 型购物篮架， 19一连接折叠轴， 20—球拍型折叠框， 21—折叠悬臂； 22— X型购物篮横杆； 23—伸缩套筒； 24—转向柄； 25—转向控制线； 26—脚 踏驱动结构， 27—分体驱动结构， 28—座椅反向结构， 29—竖向转向杆； 30—短丝接口， 31—单手双向转向器， 32—緩沖弹簧， 33—开口轴座， 40 一固定平面， 41一横向滑动方向， 42—座椅杆， 45—驱动轮轮轴。
具体实施方式
下面结合附图， 对本发明进行更详细的说明， 显然这些实施例仅仅是 本发明的部分实施例而不是全部实施例， 本领域的专业技术人员在没有做 出创造性劳动的前提下所作出的其他实施例， 都属于本发明保护范围。
一种折叠购物车， 其改进在于： 包括骑行座椅 6、 具有轮子的可纵向 折叠的购物篮架、 转向装置； 所述购物篮架可绕折叠轴纵向在一折叠位置 与展开位置之间转换， 还有将购物篮架锁定在展开状态的锁止装置， 前后 纵向排列至少有两排轮， 其中之一为具有驱动装置的驱动轮， 其余排为支 撑轮， 驱动轮和支撑轮至少其中之一排是左右对称布置的对轮。 同时满足 了购物慢推行、 路上快骑行时状态平稳和家里收藏时整车体积大幅缩小及 门到门免二次搬运的三个要求， 从图 1到图 12及图 17典型地反映了纵向 二排轮、 三排轮两种轮结构车辆示意图， 购物篮架一般情况下可以配合软 性网兜 17或者购物篮，也可以配合改装婴儿车或残疾人座椅需要，具有多 种多样的轻便运输适应性， 考虑到整车重心不可越出纵向最边界的轮子， 骑行座椅 6位于若干排轮子之间， 接近驱动轮上方， 为了防止驱动轮打滑 或空转， 应该通过合适的受力结构将骑车人重量大部分传导到驱动轮上， 特别需要说明的是： 本发明文本中的"前、 后"用词主要是为了说明书中图 示零件表达的方便， 并非限定行车方向， 页面的左边为前， 右边为后。 本 发明文本中的 "排"仅仅是为了表述的方便， 可以是左右对称的二个轮子， 也可以是一个轮子， 纵向两排轮结构的折叠购物车前轮为支撑轮， 后轮为 驱动轮， 纵向三排轮结构的折叠购物车前轮为支撑轮， 驱动轮可能是中间 轮， 也可能是第三排轮， 当驱动轮是第三排轮时， 将其标示为第三排驱动 轮 10, 当驱动轮位于中间时， 第三排轮标示为第三排支撑轮 11 , 以免混淆 驱动轮与支撑轮。
还可以做这样的优先改进： 所述购物篮架包括一个后端固定平面 40, 固定平面 40下端具有驱动轮 2, 竖向折叠轴 3分列固定平面 40左右， 支 撑轮 1位于可左右折叠的活动折叠面前下端。 如图 2A所示， 通过这样的 改进， 一个沿图中弧线左右折叠的竖向四边形或三边形购物篮就形成了， 分立竖向折叠轴 3靠拢或两个活动折叠面前端合并即构成三角形购物篮， 折叠结构最筒单。
还可以做这样的优先改进： 所述购物篮架包括一个后端固定平面 40, 固定平面 40下端具有驱动轮 2, 横向折叠轴 4位于固定平面 40上， 活动 折叠面上下折叠， 其前端具有支撑轮 1。 如图 3A、 3B所示， 经过这样的 改进， 沿图中弧线折叠，横向折叠轴位于固定平面 40上部时构成了类似大 写英文字母 A这样的展开购物篮架， 横向折叠轴位于固定平面 40下部时 构成一个类似大写英文字母 L这样的展开购物篮架， 这样的改进， 其日常 使用过程中折叠收藏具有最快的速度。
还可以做这样的优先改进： 所述购物篮架包括一个后端固定平面 40, 固定平面下端具有驱动轮 2, 平移活动折叠面借助若干折叠轴以平移方式 前后折叠， 活动折叠面下端具有支撑轮 1。 如图 4A所示， 这样的改进， 一 般 N型折叠， 或者如图 4A虚线部分的 M型折叠完成， 可以沿图 4A中纵 向将折叠购物篮架前后长度做大， 适用于长度尺寸比较大的物件运输。
还可以做这样的优先改进： 所述折叠轴是横轴， 分立于后端固定平面 40上下， 活动折叠面与后端固定平面 40之间是一侧视平行四边形。 如图 4B的虚线部分， 这样的改进使得折叠方式快捷筒单。
还可以做这样的优先改进： 所述锁止装置为位于纵向两排轮之间的侧 视可变三角形结构， 以若干个横轴为枢接点， 通过杆连接构成一个侧视三 角形杆结构， 三角形之其中一边长度可变并保持锁定状态， 分别对应购物 篮架的折叠状态与展开状态。 如图 1、 图 7、 图 8、 图 9所示， 是侧视可变 三角形锁止装置的特例之一，这样的结构有利于购物篮架的整体受力优化， 折叠与展开两种状态变换容易， 并且锁定方式筒单。
还可以做这样的优先改进：所述购物篮架包括一个可绕连接折叠轴 19 折叠的 X型购物篮架 18, 支撑轮 1直接安装在前下端即前下肢上，驱动轮 2位于后端。 如图 5、 图 7、 图 8、 图 12所示， X型购物篮架的两个折叠框 一般近似矩形， 以达到最大、 最实用的购物篮架体积， 这是本发明中受力 结构、折叠尺寸、骑行稳定性、 收藏方便性等性能最全面优化的结构之一。
还可以做这样的优先改进： 所述购物篮架为悬臂篮架， 所述购物篮架 包括一个后端固定平面 40, 固定平面 40下端具有轮子， 悬臂折叠购物篮 架借助折叠轴前后纵向折叠， 所述转向装置包括位于后端固定面上的竖向 转向杆 29, 竖向转向杆 29纵向向前延伸出一纵向杆 8,纵向杆 8另一端头 安装有驱动轮， 构成纵向二排轮结构， 纵向杆 8两端之一以竖向轴套方式 与竖向转向杆 29或者驱动轮轮叉枢接。如图 6所示， 图中弧形箭头表达可 转向竖向轴套枢接结构， 这种悬臂折叠结构比较适应少量购物， 具体的悬 臂篮架有多种方式， 比如第一种， 左右并列竖向折叠轴配合左右折叠活动 面的购物篮架； 第二种， 横向上折叠轴或下折叠轴配合上下折叠活动面的 购物篮架； 第三种， 前后平移折叠面的购物篮架； 第四种， X型折叠的购 物篮架等， 在本说明书的前文段落中已经有类似折叠结构的详细说明。
还可以做这样的优先改进： 所述纵向杆 8与竖向转向杆 29之间为快 拆装结构 7连接， 支撑轮左右对称布置。 这样的结构使得分拆后的购物篮 架用一排轮子即可在购物商场内用半倾斜的方式拖行， 特别适应老、 弱、 妇女进行少量购物， 同时又不影响重新组合后马路上骑行时的正常速度， 快拆装结构 7最方便、可靠的是短丝管螺纹对接，还可以是承插式 +止退销 对接， 如图 13A所示， 也可以采用合页抱箍直接与竖向转向杆 29连接， 如图 13B 所示。
还可以做这样的优先改进： 所述悬臂前下端具有支撑轮， 构成纵向三 排轮结构， 所述纵向杆与竖向转向杆之间为快拆装结构 7 连接。 如图 10 所示， 这样的结构可以使用大型购物篮架， 购物时可将部分车体分拆留在 购物场所外， 购物篮架部分在购物场所内推行时不失灵活性。
还可以做这样的优先改进： 所述转向装置位于支撑轮上。 如图 1、 图 5所示， 这样的改进使得转向灵活。
还可以做这样的优先改进： 所述支撑轮的竖向轮叉以竖向轴套方式枢 接在所述折叠购物篮架前下端上， 竖向轮叉上具有横向转向柄 24, 转向柄 24以线操纵方式被左右摇摆控制。 如图 1所示， 最筒单的用一只手通过握 紧单手双向转向器 31 ,正反^紧转向控制线 25即可达到左右转向的目的， 图 1中的左下局部详图更清晰地揭示了其结构原理。 这样的改进使转向装 置结构筒单、 操作方便、 造价低廉。
还可以做这样的优先改进： 所述转向装置包括立于后端固定面的竖向 转向杆 29, 所述驱动轮 2连接到竖向转向杆 29上， 所述竖向转向杆 29与 所述后端固定面 40及驱动轮 2的连接， 其中之一是竖向轴套的枢接结构。 如图 2B详图所示， 即为其中一实施例， 通过这样的改进， 竖向轴套枢接 提供了转向功能， 方便且制造成本低。
还可以做这样的优先改进： 所述竖向转向杆向前延伸出一纵向杆 8, 其端头还有第三排支撑轮 11 , 构成纵向三排轮结构。 如图 3B虚线部分所 示， 即为其中一实施例， 这样的三排轮结构大大增加了整车的稳定性， 从 而增加了购物篮架的载货量。
还可以做这样的优先改进： 所述纵向杆 8与竖向转向杆 29之间为快 拆装结构 7连接。 如图 3B所示， 这样的改进是对折叠购物车进行分拆， 购物篮架部分单独进入购物场所内， 增加推行灵活性。
还可以做这样的优先改进：所述驱动轮 2直接安装在 X型购物篮架后 下端上， 即后下肢上。 如图 5所示， 这样的改进具有推行稳定性、 骑行稳 定性、 折叠方便性等全面性能的优化， 驱动轮也可以安装在折叠矩形框后 下肢部分的纵向延伸杆上， 矩形框演变为球拍型折叠框 20, 如果驱动轮左 右两个均布， 则演变为字母 K)状。
还可以做这样的优先改进： 所述驱动轮 2安装在竖向锁止杆 9上， X 型购物篮后上下肢以横轴套方式枢接于竖向锁止杆 9。 如图 7、 图 8所示， 这样的改进容易实现上下横轴套之间的距离控制，锁止购物篮架展开状态， 行驶稳定而且折叠方便， 驱动轮 2与竖向锁止杆 9的连接点可以在横轴套 之上， 也可以在横轴套之下， 如图 8A虚线所示， 还可以在两个横轴套之 间， 如图 8B所示， 以利于受力结构的多种优化。
还可以做这样的优先改进： 所述 X型购物篮后上下肢 22以横轴套方 式枢接于竖向锁止杆 9。 如图 1所示， 这样的改进通过拉紧上下横向轴套 的距离达到篮架展开状态锁止的目的， 是比较筒单的展开锁止保持状态。
还可以做这样的优先改进： 所述转向装置包括竖向锁止杆 9向前延伸 出一纵向杆 8, 纵向杆 8另一端头具有第三支撑轮 11 , 构成纵向三排轮结 构，纵向杆 8两端之一以竖向轴套方式与竖向锁止杆或者第三轮轮叉枢接。 如图 9所示， 不仅提供了更稳定的三排轮结构， 而且竖向轴套枢接提供了 转向功能， 这是本发明中最具骑行方便性、 稳定性而且载货量大的结构之 一， 因为它整体展开结构类似于传统三轮车。
还可以做这样的优先改进： 所述纵向杆 8与竖向锁止杆 9之间为快拆 装结构 7连接。 如图 9所示， 这样的改进是为了购物时将车头留在外面而 减少购物时占用空间， 增加购物篮架在购物场所内的移动灵活性。
还可以做这样的优先改进： 所述中间驱动轮 2与第三轮互换， 纵向杆 端头变为第三排驱动轮 10, 中间轮变为支撑轮。 如图 1、 图 10所示， 这样 的结构有利于驱动结构优化， 驱动轮位于端头时其驱动结构有较大的自由 空间， 可以做的比位于中间时更精密、 更复杂、 更庞大。
还可以做这样的优先改进：所述竖向锁止杆 9两端之横轴套可沿 X型 购物篮后上下肢横杆 22横向滑动。这样的改进是为了整车连续二次折叠后 进一步缩短长度， 如图 1中箭头 41所示， 第一次折叠指的是 X型购物篮 架折叠， 第二次折叠指的是绕竖向锁止杆的折叠。
还可以做这样的优先改进： 所述 X型购物篮架之前上肢长度为零。这 样的结构一般适用于婴儿车改装。
还可以做这样的优先改进： 所述 X型购物篮架 18之折叠轴轴孔有两 个， 分列于其中之一长折叠框中点上下， 另二短折叠框以其端头折叠轴交 叉地枢接其上。 如图 11所示， 短折叠框一般是开口矩形， 这是 X型折叠 购物篮架的变种， 其展开后前后长度加长， 购物篮架具有更大的长度， 适 用于大型婴儿卧车改装。
还可以做这样的优先改进： 所述 X型购物篮架 18之连接折叠轴 19 为平行双轴， 分别枢接于两个折叠框上， 平行双轴之间以短杆相连。 这样 改进是为了改善折叠购物篮架的受力结构。
还可以做这样的优先改进：所述 X型购物篮架 18之折叠轴 19一端安 装在平行置于折叠框上的弹簧緩沖结构 32上。 如图 7、 图 8A所示， 这样 的改进有效提高了购物篮架的緩沖能力， 适用于崎岖颠簸路面。
还可以做这样的优先改进： 所述横轴套上还具有与竖向锁止杆 9活动 连接的竖向轴套， 形成十字型轴套 15。 如图 1、 图 7、 图 10所示， 这样的 改进是为了将多种功能集中于一个零件上， 比如车辆转向功能， 比如 X型 购物篮架折叠时轴套沿着竖向锁止杆 9的上下滑动功能， 提高车辆装配的 整体可靠性与生产效率。 还可以做这样的优先改进： 所述横轴套是合页抱箍 14,可开合地枢接 X型购物篮架 18—侧上下肢横杆 22。 如图 7所示， 这样的改进使得 X型 购物篮架折叠时， 打开合页抱箍 14即脱离横杆 22, 适应了 X型购物篮架 折叠时后上下肢横杆 22之间距离大幅变化。
还可以做这样的优先改进： 所述竖向锁止杆 9分上下两段， 中间采用 一个快拆装对接结构 13相连。 如图 7所示， 解决了 X型购物篮架 18折叠 时后上下肢横杆 22之间距离大幅变化的问题， 快拆装对接结构 13—般选 择短丝管对接， 也可以选择承插 +止退销对接， 如图 13A所示。
还可以做这样的优先改进： 所述竖向锁止杆 9是一个伸缩杆。 如图 1 所示， 有外伸缩套筒 23 , 同样解决了折叠时， X型购物篮架后上下肢横杆 22之间距离大幅变化的问题。
还可以做这样的优先改进： 所述骑行座椅 6直接安装在竖向锁止杆 9 上。 骑行座椅 6与竖向锁止杆 9之间的连接可以有座椅杆或者无座椅杆作 中介杆， 这样的改进可以让骑车人的重量直接传递到后端驱动轮 2上， 降 低 X型购物篮架的受力。
还可以做这样的优先改进：所述骑行座椅 6直接安装在 X型折叠购物 篮架 18的后上肢延长杆上。这样的结构依旧将骑车人重量通过竖向锁止杆 9传递到后驱动轮 2上， 降低 X型购物篮架 18的受力。
还可以做这样的优先改进： 所述竖向锁止杆 9与十字型轴套 15之间 可滑动， 所述竖向锁止杆 9分两段可折叠连接， 其中一段长度为 X型购物 篮架打开时一侧上下肢横杆 22之间的距离。这样一则通过滑动配合提高 X 型购物篮架折叠时的快捷性， 同时 X型购物篮架展开时竖向锁止杆折叠倒 下， 防止向上伸出的竖向锁止杆遮挡骑车人的视线， 如图 10所示。
还可以做这样的优先改进： 所述转向装置包括所述竖向锁止杆 9与驱 动轮 2之间以竖向轴套 5枢接。 图 8A、 B中竖向轴套 5提供了转向功能， 筒化了转向装置， 降低了制造成本。
还可以做这样的优先改进： 所述驱动轮 2具有纵向伸缩结构 12,驱动 轮轮叉连接纵向导杆， 所述竖向锁止杆 9上具有供安装纵向导杆的导孔， 导杆与导孔之间可纵向滑动。如图 7所示，这样的改进使得整车长度可调， 大大增加了在购物商场内的行动灵活性， 这也是本发明最具实用性的结构 之一。
还可以做这样的优先改进： 所述折叠购物车具有骑行座椅位置变换结 构。 这样的改进出于空车与满载车的整体重心调整， 以增加该车空车去、 满车回两种行驶状况具有同样的行驶稳定性。
还可以做这样的优先改进： 所述骑行座椅 6安装于竖向锁止杆 9上， 所述位置变换是绕竖向锁止杆 9的前后对称位置。如图 12所示，这样的座 椅反向结构 28是最大幅度改变整车重心的办法，空车时骑车人可在购物篮 架内驾驶， 满载时， 骑车人在购物篮架外驾驶， 具有大幅度调整整车重心 的作用， 对称位置有两种办法达到， 一是绕竖向锁止杆 9轴套枢接 180旋 转达到座椅位置对称变换，如图 12中弧形箭头，二是竖向锁止杆 9上的纵 向导孔与座椅纵向导杆的配合，如图 12中横箭头， 达到正向或者反向的座 椅位置对称变换。
还可以做这样的优先改进： 所述驱动结构为分体式脚踏驱动结构 27, 脚踏主动部分安装于纵向杆 8—侧。 如图 9所示， 这样的改进使得驱动结 构布局优化， 增加骑行人的蹬脚舒适度。
还可以做这样的优先改进： 所述快拆装结构上部是开口轴座 33 , 下部 是对中管道短丝接口 30, 所述分体式驱动装置是伞齿轮驱动， 位于对接管 道内。 如图 16所示， 这样的改进使得前后装配、 对中容易， 同时兼有良好 的装配组合强度， 润滑油污不会污染骑车人。
还可以做这样的优先改进： 所述十字型轴套 15具有与所在 X型购物 篮架横杆 22或竖向锁止杆 9之间的止滑装置。这样的改进使得购物篮架展 开状态锁止功能借助十字型轴套得以实现， 使得横向滑动锁止功能也可以 实现， 最筒单的止滑结构是在轴套上开螺孔， 利用螺栓连接轴套与轴进行 锁止， 或者利用螺栓压力产生的摩擦力锁止。
还可以做这样的优先改进： 所述止滑装置包括轴套开沟槽并且内嵌夹 圏 16。 如图 14所示， 这样的改进不损害轴套内的杆本身， 止滑同时还可 以保持内轴杆与外轴套之间的相对转动， 而且夹圏 16 的松紧操作非常容 易。
还可以做这样的优先改进： 所述驱动轮为一个， 至少一排支撑轮左右 对称布置。 如图 1、 图 7、 图 10所示， 这样的改进在保持车辆行马史稳定性 的前提下，驱动单轮比驱动对称双轮相对筒单， 而且多重折叠时体积更小， 一重折叠指的是购物篮架折叠， 二重折叠指的是竖向锁止杆 9或竖向转向 杆 29处前后车体两部分继续折叠。
还可以做这样的优先改进： 所述驱动装置为传统自行车脚踏驱动结 构。 如图 1、 图 5、 图 9所示， 这样的改进是最环保的， 可以链式传动， 也 可以伞齿轮传动， 也可以脚踏轮轴直接驱动， 这些都是我们常见的传统自 行车、 三轮车、 儿童车的驱动传动方式， 在这些驱动结构上还可以加装变 速机构， 以带来骑车人更多的速度和方便。
还可以做这样的优先改进： 所述驱动装置为可折叠悬臂脚踏驱动结 构，所述折叠悬臂 21—端轴套枢接到驱动轮轮轴 45上，折叠悬臂 21与附 近车架之间通过一根角度控制杆确定不同夹角达到折叠目的。 角度控制杆 的最佳结构是弧形， 且角度控制杆上具有若干定位孔， 通过定位销定位， 如图 15所示， 这样的改进是为了进入购物场所时收起悬臂 21 , 减少购物 篮架整体长度， 增加购物篮架在购物场所内移动的灵活性， 同时也适应骑 车人的人体伸展舒适度要求， 折叠悬臂脚踏驱动结构可以让骑车人恰到好 处地伸展人体、 协调四肢。
还可以做这样的优先改进： 所述驱动装置为轮毂电机驱动结构。 这样 的改进是车辆外观最整洁的， 因为减少了诸多机械驱动和传动装置。
还可以做这样的优先改进： 所述驱动装置为内燃机驱动结构。 这样的 改进具有长距离运输的优点， 克服了人力、 电池皆不持久的动力问题。
还可以做这样的优先改进： 所述折叠购物篮架包括一排支撑对轮， 以 快拆装结构安装在一个传统自行车后部， 传统自行车前后部分以快拆装对 接结构 7相连。 这样的纵向可拆装三排轮结构改进， 既单纯的前两排轮可 以作为传统自行车使用， 也可以单纯的后两排轮作为购物车推行， 还可以 整体三排轮作为运输车骑行。
还可以做这样的优先改进：所述折叠购物篮架包括 X型折叠购物篮架 18, 所述自行车后部快拆装结构是这样的， 其 X型折叠购物篮架的一侧矩 形折叠框上、 下肢横杆 22以合页抱箍方式连接在座椅杆 42上。 这样的改 进是最筒单的快拆装连接结构，当然合页抱箍可以被其他快连接方式替代， 可以方便地安装在现有小轮自行车上， 当然这样的折叠购物篮架以类似方 式， 也可以安装在自行车车头前部， 具有基本相同的效果。
还可以做这样的优先改进：所述折叠购物篮架包括 X型折叠购物篮架 18, 所述自行车后部快拆装结构是这样的， 其 X型折叠购物篮架 18的一 侧矩形折叠框上肢横杆 22以合页抱箍方式连接在座椅杆 42上， 同侧矩形 折叠框下肢横杆 22中间断开，断口处两端分别以管轴 7 插方式与驱动轮轮 轴 45两端相连接。 如图 17所示， 当然此处的合页抱箍也可以被其他类似 连接方式代替， 此处的脚踏驱动也可以被轮毂电驱动代替， 这样的改进是 本发明最优组合结构之一。
对所公开的上述实施例的说明，使本领域的专业技术人员能够实现或 者使用本发明， 对这些具体实施例的多种修改对本领域的专业技术人员来 说将是显而易见的， 本文中所定义的一般原理可以在不脱离本发明的精神 或者范围的情况下， 在其他实施例中实现。 因此， 本发明将不会被限制于 本文所示的这些实施例， 而是要与本文所公开的原理和新颖性特点相一致 的最宽的范围。

Claims

1、 一种折叠购物车， 其特征在于： 包括骑行座椅、 具有轮子的可纵向 折叠的购物篮架、 转向装置； 所述购物篮架可绕折叠轴纵向在一折叠位置 与展开位置之间转换， 还有将购物篮架锁定在展开状态的锁止装置， 前后 纵向排列至少有两排轮， 其中之一为具有驱动装置的驱动轮， 其余排为支 撑轮， 驱动轮和支撑轮至少其中之一排是左右对称布置的对轮。
2、一种如权利要求 1所权述的折叠购物车， 其特征在于： 所述购物篮架 包括一个后端固定平面， 固定平面下端具有驱动轮， 竖向折叠轴分列固定 利 _
平面左右， 支撑轮位于可左右折叠的 1活动折叠面前下端。
2
3、一种如权利要求 1所述的折叠购要物车， 其特征在于： 所述购物篮架 包括一个后端固定平面， 固定平面下端具有求驱动轮， 横向折叠轴位于固定 平面上， 活动折叠面上下折叠， 其前端具有支撑轮。
4、一种如权利要求 1所述的折叠购物车， 其特征在于： 所述购物篮架 包括一个后端固定平面， 固定平面下端具有驱动轮， 活动折叠面借助若干 折叠轴以平移方式前后折叠， 平移活动折叠面下端具有支撑轮。
5、一种如权利要求 1所述的折叠购物车， 其特征在于： 所述折叠轴是 横轴， 分立于后端固定平面上下， 活动折叠面与后端固定平面之间是一侧 视平行四边形。
6、一种如权利要求 1所述的折叠购物车， 其特征在于： 所述锁止装置 为位于纵向两排轮之间的侧视可变三角形结构， 以若干个横轴为枢接点， 通过杆连接构成一个侧视三角形杆结构， 三角形之其中一边长度可变并保 持锁定状态， 分别对应购物篮架的折叠状态与展开状态。
7、一种如权利要求 1所述的折叠购物车， 其特征在于： 所述购物篮架 包括一个可绕连接折叠轴折叠的 X型购物篮架， 支撑轮直接安装在前下端 即前下肢上， 驱动轮位于后端。
8、一种如权利要求 1所述的折叠购物车， 其特征在于： 所述购物篮架 为悬臂篮架， 所述购物篮架包括一个后端固定平面， 固定平面下端具有轮 子， 悬臂折叠购物篮架借助折叠轴前后纵向折叠， 所述转向装置包括位于 后端固定面上的竖向转向杆， 竖向转向杆纵向向前延伸出一纵向杆， 纵向 杆另一端头安装有驱动轮， 构成纵向二排轮结构， 纵向杆两端之一以竖向 轴套方式与竖向转向杆或者驱动轮轮叉枢接。
9、一种如权利要求 8所述的折叠购物车， 其特征在于： 所述纵向杆与 竖向转向杆之间为快拆装结构连接， 支撑轮左右对称布置。
10、 一种如权利要求 8所述的折叠购物车， 其特征在于： 所述悬臂前 下端具有支撑轮， 构成纵向三排轮结构， 所述纵向杆与竖向转向杆之间为 快拆装结构连接。
11、 一种如权利要求 1至 7任一所述的折叠购物车， 其特征在于： 所 述转向装置位于支撑轮上。
12、 一种如权利要求 11所述的折叠购物车， 其特征在于： 所述支撑轮 的竖向轮叉以竖向轴套方式枢接在所述折叠购物篮架前下端上， 竖向轮叉 上具有横向转向柄， 转向柄以线操纵方式被左右摇摆控制。
13、 一种如权利要求 2至 5任一所述的折叠购物车， 其特征在于： 所 述转向装置包括立于后端固定面的竖向转向杆， 所述驱动轮连接到竖向转 向杆上， 所述竖向转向杆与所述后端固定面及驱动轮的连接， 其中之一是 竖向轴套的枢接结构。
14、一种如权利要求 13所述的折叠购物车， 其特征在于： 所述竖向转 向杆向前延伸出一纵向杆， 其端头还有支撑轮， 构成纵向三排结构。
15、一种如权利要求 14所述的折叠购物车， 其特征在于： 所述纵向杆 与竖向转向杆之间为快拆装结构连接。
16、 一种如权利要求 7所述的折叠购物车， 其特征在于： 所述驱动轮 直接安装在 X型购物篮架后下端上， 即后下肢上。
17、 一种如权利要求 7所述的折叠购物车， 其特征在于： 所述驱动轮 安装在竖向锁止杆上， X型购物篮架后上下肢以横轴套方式枢接于竖向锁 止杆。
18、 一种如权利要求 16所述的折叠购物车， 其特征在于： 所述 X型 购物篮架后上下肢以横轴套方式枢接于竖向锁止杆。
19、 一种如权利要求 17或 18所述的折叠购物车， 其特征在于： 所述 转向装置包括竖向锁止杆向前延伸出一纵向杆， 纵向杆另一端头具有第三 支撑轮， 构成纵向三排轮结构， 纵向杆两端之一以竖向轴套方式与竖向锁 止杆或者第三轮轮叉枢接。
20、一种如权利要求 19所述的折叠购物车， 其特征在于： 所述纵向杆 与竖向锁止杆之间为快拆装结构连接。
21、一种如权利要求 19所述的折叠购物车， 其特征在于： 所述中间驱 动轮与第三轮互换， 纵向杆端头变为第三排驱动轮， 中间轮变为支撑轮。
22、一种如权利要求 19所述的折叠购物车， 其特征在于： 所述竖向锁 止杆两端之横轴套可沿 X型购物篮架后上下肢横杆横向滑动。
23、 一种如权利要求 7所述的折叠购物车， 其特征在于： 所述 X型购 物篮架之前上肢长度为零。
24、 一种如权利要求 7所述的折叠购物车， 其特征在于： 所述 X型购 物篮架之折叠轴轴孔有两个， 分列于其中之一长折叠框中点上下， 另二短 折叠框以其端头折叠轴交叉地枢接其上。
25、 一种如权利要求 7所述的折叠购物车， 其特征在于： 所述 X型购 物篮架之连接折叠轴为平行双轴， 分别枢接于两个折叠框上， 平行双轴之 间以短 相连。
26、 一种如权利要求 7所述的折叠购物车， 其特征在于： 所述 X型购 物篮架之折叠轴一端安装在平行置于折叠框上的弹簧緩沖结构上。
27、 一种如权利要求 17或 18所述的折叠购物车， 其特征在于： 所述 横轴套上还具有与竖向锁止杆活动连接的竖向轴套， 形成十字型轴套。
28、 一种如权利要求 17或 18所述的折叠购物车， 其特征在于： 所述 横轴套是合页抱箍， 可开合地枢接 X型购物篮架一侧上下肢横杆。
29、 一种如权利要求 17或 18所述的折叠购物车， 其特征在于： 所述 竖向锁止杆分上下两段， 中间采用一个快拆装对接结构相连。
30、 一种如权利要求 17或 18所述的折叠购物车， 其特征在于： 所述 竖向锁止杆是一个伸缩杆。
31、 一种如权利要求 17或 18所述的折叠购物车， 其特征在于： 所述 骑行座椅直接安装在竖向锁止杆上。
32、 一种如权利要求 17或 18所述的折叠购物车， 其特征在于： 所述 骑行座椅直接安装在 X型折叠购物篮架的后上肢延长杆上。
33、一种如权利要求 27所述的折叠购物车， 其特征在于： 所述竖向锁 止杆与十字型轴套之间可滑动， 所述竖向锁止杆分两段可折叠连接， 其中 一段长度为 X型购物篮展开时一侧上下肢横杆之间的距离。
34、 一种如权利要求 17所述的折叠购物车， 其特征在于： 所述转向装 置包括所述竖向锁止杆与驱动轮之间以竖向轴套枢接。
35、 一种如权利要求 17所述的折叠购物车， 其特征在于： 所述驱动轮 具有纵向伸缩结构， 驱动轮轮叉连接纵向导杆， 所述竖向锁止杆上具有供 安装纵向导杆的导孔， 导杆与导孔之间可纵向滑动。
36、 一种如权利要求 17或 18所述的折叠购物车， 其特征在于： 所述 折叠购物车具有骑行座椅位置变换结构。
37、 一种如权利要求 36所述的折叠购物车， 其特征在于： 所述骑行座 椅安装于竖向锁止杆上， 所述位置变换是绕竖向锁止杆的前后对称位置。
38、 一种如权利要求 20所述的折叠购物车， 其特征在于： 所述驱动结 构为分体式脚踏驱动结构， 脚踏主动部分安装于纵向杆一侧。
39、 一种如权利要求 38所述的折叠购物车， 其特征在于： 所述快拆装 结构上部是开口轴座， 下部是对中管道短丝接口， 所述分体式驱动装置是 伞齿轮驱动， 位于对接管道内。
40、 一种如权利要求 27所述的折叠购物车， 其特征在于： 所述十字型 轴套具有与所在 X型购物篮架横杆或竖向锁止杆之间的止滑装置。
41、 一种如权利要求 40所述的折叠购物车， 其特征在于： 所述止滑装 置包括轴套开沟槽并且内嵌夹圏。
42、 一种如权利要求 1、 2、 3、 4、 5、 6、 7、 8、 9、 10、 16、 17、 18、 23、 24、 25、 26、 34、 35其中任一所述的折叠购物车， 其特征在于： 所述 驱动轮为一个， 至少一排支撑轮左右对称布置。
43、 一种如权利要求 1、 2、 3、 4、 5、 6、 7、 8、 9、 10、 16、 17、 18、 23、 24、 25、 26、 34、 35其中任一所述的折叠购物车， 其特征在于： 所述 驱动装置为传统自行车脚踏驱动结构。
44、 一种如权利要求 43任一所述的折叠购物车， 其特征在于： 所述驱 动装置为可折叠悬臂脚踏驱动结构， 所述折叠悬臂一端轴套枢接到驱动轮 轮轴上， 折叠悬臂与附近车架之间通过一根角度控制杆确定不同夹角达到 折叠目的。
45、 一种如权利要求 1、 2、 3、 4、 5、 6、 7、 8、 9、 10、 16、 17、 18、 23、 24、 25、 26、 34、 35任一所述的折叠购物车， 其特征在于： 所述驱动 装置为轮毂电机驱动结构。
46、 一种如权利要求 1、 2、 3、 4、 5、 6、 7、 8、 9、 10、 16、 17、 18、 23、 24、 25、 26、 34、 35任一所述的折叠购物车， 其特征在于： 所述驱动 装置为内燃机驱动结构。
47、 一种如权利要求 1所述的折叠购物车， 其特征在于： 所述折叠购 物篮架包括一排支撑对轮， 以快拆装结构安装在一个传统自行车后部， 传 统自行车前后部分以快拆装对接结构相连。
48、 一种如权利要求 47所述的折叠购物车， 其特征在于： 所述折叠购 物篮架包括 X型折叠购物篮架， 所述自行车后部快拆装结构是这样的， 其 X型折叠购物篮架的一侧矩形折叠框上、 下肢横杆以合页抱箍方式连接在 座椅杆上。
49、 一种如权利要求 47所述的折叠购物车， 其特征在于： 所述折叠购 物篮架包括 X型折叠购物篮架， 所述自行车后部快拆装结构是这样的， 其 X型折叠购物篮架的一侧矩形折叠框上肢横杆以合页抱箍方式连接在座椅 杆上， 同侧矩形折叠框下肢横杆中间断开， 断口处两端分别以管轴承插方 式与驱动轮轮轴两端相连接。
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