CN102390585A - Retractable shopping device framework, as well as corresponding shopping basket and shopping cart - Google Patents
Retractable shopping device framework, as well as corresponding shopping basket and shopping cart Download PDFInfo
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- CN102390585A CN102390585A CN2011102021687A CN201110202168A CN102390585A CN 102390585 A CN102390585 A CN 102390585A CN 2011102021687 A CN2011102021687 A CN 2011102021687A CN 201110202168 A CN201110202168 A CN 201110202168A CN 102390585 A CN102390585 A CN 102390585A
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Abstract
The invention discloses a retractable shopping device framework, as well as a corresponding shopping basket and a shopping cart. The retractable shopping device framework comprises a connecting base and a framework group; the retractable portable shopping basket comprising the shopping device framework further comprises a bag and a lifting rope; and the retractable portable shopping cart comprising the shopping device framework further comprises a bag, a lifting rope and caster wheels. The framework group is movably connected on the connecting base and can be retracted and expanded around the connecting base; the bag is connected with the framework group and can be retracted and expanded along with retraction and expansion of the framework group; the lifting rope is connected with the bag or the framework group; and the caster wheels are mounted below the retractable shopping device framework and can be retracted and expanded along with the retraction and the expansion of the framework. The invention is used for carrying objects, shopping and the like in daily life and has the advantages of simple structure, convenience in the retraction and the expansion, easiness in carrying, easiness in storage, light in weight, labor-saving property and the like.
Description
Technical field
The invention belongs to the daily living article field, relate to a kind of retractable purchasing article skeleton, particularly used the retractable portable shopping basket and the shopping cart of this skeleton.
Background technology
In the daily life, people often can use vegetable basket, shopping basket; The shopping bag of belt wheel, shopping carts etc. are done shopping or are adorned thing, many times; These devices all have fixing profile, when they are on the shelf, take up room very much; Not only be unfavorable for storage, more be unfavorable for carrying and mobile and transportation etc.Have only the part purchasing article to have folder function, foldable operation is inconvenient, and volume after folding is still very big, and is light inadequately.Though and plastic bag is very general, carry weight and long inconvenient apart from using, not environmental protection after use abandons, country's appearance limit more makes its cost improve after moulding order.Therefore, when people used purchasing article, except convenient, the consciousness of economic environmental protection was also stronger.So the parent that purchasing articles such as various portable shopping baskets and shopping cart will more and more receive people looks at.
Summary of the invention
The object of the present invention is to provide a kind of retractable purchasing article skeleton, particularly used the portable shopping basket and the shopping cart of this skeleton, for the most existing purchasing article; Have simple in structure, but folding and unfolding, it is big to open volume; It is little to pack up volume, is prone to store, and is prone to portable; In light weight, advantages such as laborsaving environmental protection.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be: a kind of retractable purchasing article skeleton, particularly used the portable shopping basket and the shopping cart of this skeleton, and wherein, retractable purchasing article skeleton comprises and connects pedestal and frame set; Portable shopping basket also comprises sack and rope except comprising retractable purchasing article skeleton; Portable shopping trolley also comprises sack, rope, castor and hauling rope except comprising retractable purchasing article skeleton.
For can folding and unfolding as umbrella, and open mode be the bigger the better with the collapsed state volume ratio, and the present invention has adopted the parallelogram motion principle, develops a kind of retractable purchasing article skeleton, comprises connection pedestal and frame set.Said connection pedestal has the pedestal center shaft, and all frame set all are movably connected in and connect on the pedestal, and have three framing groups at least in each device.Same framing group comprises stand; Middle frame and internal frame; Wherein, middle frame respectively with the connecting bridge of stand be connected pedestal and be movably connected on first point of connection and second point of connection, internal frame respectively with the connecting bridge of stand be connected pedestal and be movably connected on the 3rd point of connection and the 4th point of connection; Described first, second, third and fourth four points of connection line constitutes a parallelogram, this parallelogram and pedestal center shaft coplane, and can rotate around said second point of connection and the 4th point of connection.The stand of frame set, middle frame, internal frame be connected four connecting rods that pedestal constitutes said parallelogram, four each own shapes of connecting rod are with constitute can variation.According to the parallelogram motion principle; The parallelogram that constitutes when above-mentioned four points of connection is when said second point of connection and the 4th point of connection rotate; Said stand; Middle frame can promptly be connected the folding and unfolding action that pedestal is done to open and pack up around said the 4th connecting rod with three connecting rods of internal frame, and therefore said purchasing article skeleton also can carry out folding and unfolding around connecting pedestal.The purchasing article skeleton that can carry out big volume ratio folding and unfolding so easily carries and deposits.
The composition of above-mentioned connection pedestal and frame set has variety, and the connection mode between them also has variety, and the effect between the variety of way has difference slightly.
One of them implementation is: connect the joint pin that pedestal has a plurality of protrusions, frame set is movably connected on the joint pin.
One of them implementation is: connect pedestal and have a plurality of auricles, frame set is movably connected on the auricle.
One of them implementation is: connect pedestal and have a plurality of folding and unfolding grooves, frame set is movably connected in the folding and unfolding groove, and the movable connection method between frame set and the folding and unfolding groove can be taked the coupling link mode.
One of them implementation is: connect pedestal and have a plurality of folding and unfolding grooves, frame set is movably connected in the folding and unfolding groove, and the movable connection method between frame set and the folding and unfolding groove can be taked the clamp mode.
Above-mentioned preceding dual mode has simple in structure, in light weight, and whole skeleton is packed up advantages such as the back volume is little; Back dual mode is because second point of connection is inner at the folding and unfolding groove that is connected pedestal with the 4th point of connection, so more stable and durable.No matter be any implementation, according to the motion principle of parallelogram, by the stand of frame set, middle frame all can promptly be connected the folding and unfolding action that pedestal is done to open and pack up around said the 4th connecting rod with wherein three connecting rods of the parallelogram that internal frame is formed.
In order to have the profile of common basket skeleton after retractable purchasing article skeleton is opened; Can stand be divided into connecting bridge and base portion; Wherein the connecting bridge of stand mainly is used for flexibly connecting with middle frame and internal frame, and first point of connection and the 3rd point of connection are all on the connecting bridge of stand; The base portion of stand is designed to and the pedestal central axes, like this, and in the folding and unfolding process of said retractable purchasing article skeleton; If make said pedestal center shaft keep vertical state; Except that the connecting bridge of said stand, other base portion also constantly keeps vertical state so, has so just guaranteed the global shape of retractable purchasing article skeleton; Make it open the frame shape that the back becomes common basket, pack up the umbrella that the back becomes to fold.
But because above-mentioned purchasing article skeleton folding and unfolding; In order accurately to know the residing mode of operation of retractable purchasing article skeleton, can whole folding and unfolding process be divided into one of four states, from complete collapsed state to the transition state; Arrive full open position again, arrive limit open mode at last.When the purchasing article skeleton was in complete collapsed state, the vertical distance of the first or the 3rd point of connection and pedestal center shaft was minimum, and the base portion of stand is minimum with the angle of middle frame, and the volume of skeleton is minimum at this moment; During full open position, the vertical distance of the first or the 3rd point of connection and pedestal center shaft is maximum, and the base portion of stand is vertical with middle frame, and this moment, the skeleton volume was maximum; Transition condition is between complete collapsed state and full open position, and the ultimate range between middle frame and the internal frame appears at transition condition; Limit open mode is maximum open mode (full open position also might be a limit open mode), and the angle between the base portion of stand and the middle frame is maximum, and the distance between middle frame and the internal frame is minimum.
A kind of retractable portable shopping basket is on above-mentioned retractable purchasing article skeleton basis, to have loaded onto sack and rope, makes loading and begins a new line all very convenient.Sack mainly links to each other with said frame set, and other place of having only the middle purchasing article skeleton that links to each other also has been linked to be an integral body, and when shopping basket was opened fully, sack can be opened into the frame shape of basket with it; When shopping basket was packed up fully, sack can be retracted to the umbrella that folds with it.Rope can be connected on the retractable purchasing article skeleton, also can be connected on the sack; Rope can be a rope, belt, chain or other flexible or yielding structure.Sack also can be a flexible or yielding sack such as cloth bag, mesh bag or plastic product bag.Therefore, sack and rope can not produce unnecessary influence to the folding and unfolding of skeleton.
Also can between the middle frame of above-mentioned shopping basket and internal frame, load onto backing block; When reaching capacity during open mode of shopping basket; Backing block just in time is stuck between middle frame and the internal frame; Frame and internal frame keep certain distance in making, thereby the parallelogram that above-mentioned four points of connection is formed keeps certain shape, reach frame set is stopped around connecting the purpose that pedestal rotates.
A kind of retractable portable shopping trolley is on the basis of above-mentioned retractable portable shopping basket, to have loaded onto castor, because castor is more laborsaving, moves more convenient.Said castor comprises wheel and wheel seat, if said castor is a cardan wheel, then also comprises the cardan wheel rotating mechanism.The folding and unfolding of castor for ease; Wheel seat is movable to be connected on first point of connection and the 3rd point of connection of said frame set, and therefore, the wheel seat of castor also can be equivalent to a connecting rod in the above-mentioned parallelogram; Castor can the folding and unfolding with the folding and unfolding of said retractable purchasing article skeleton; And in the folding and unfolding process, the S. A. of cardan wheel rotating mechanism can be all the time and the pedestal central axes, can guarantee that like this shopping cart is in the process of beginning a new line in ground; The S. A. of said castor wheel and cardan wheel rotating mechanism is all the time perpendicular to ground, and this also is the installation and the operating needs of castor.Except castor being installed on first point of connection and the 3rd point of connection, also can castor be installed in the bottom of connection pedestal or the bottom of frame set, prerequisite is that the layout that each castor is taked can not interfere with each other in the process of folding and unfolding.
Can also load onto hauling rope for above-mentioned retractable portable shopping trolley, can make things convenient for further like this and move with laborsaving.Wherein hauling rope can be a rope, belt, and chain, leather strap, cloth or other flexible or yielding structure, hauling rope can be connected on frame set, castor wheel seat or the sack of shopping cart, so that people's traction.
Arrive this, above-mentioned retractable portable shopping trolley both can carry (castor does not land) as shopping basket is unsettled, also can begin a new line (castor lands) with partly carrying half, even can only utilize hauling rope to walk in tow.
Sum up, the present invention has been owing to adopted technique scheme, with respect to the most existing purchasing article, have simple in structure, but folding and unfolding, it is big to open volume, it is little to pack up volume, is prone to store, and is prone to portable, in light weight, advantages such as laborsaving environmental protection.
Description of drawings
Below in conjunction with the embodiment in the accompanying drawing the present invention is done to specify further, but do not constitute any restriction of the present invention.
Pairing parts of each mark or characteristic are following in the accompanying drawing.
1 first point of connection; 2 second point of connection; 3 the 3rd point of connection; 4 the 4th point of connection; 5 stands; Frame in 6; 7 internal frames; 8 connect pedestal; 9 pedestal center shafts; 10 joint pins; 11 auricles; 12 folding and unfolding grooves; 13 coupling links; 14 clamps; 15 sacks; 16 ropes; 17 castor wheels; 18 castor wheel seats; 19 cardan wheel rotating mechanisms; 20 cardan wheel rotating mechanism S. A.s; 21 hauling ropes; 22 backing blocks; 23 connect base seat lid; 24 connect at the bottom of the pedestal; 25 stand connecting bridges; 26 stand base portions; 27 horizontal surfaces
Fig. 1 is the embodiment of the invention 1 full open position structural representation (three a framing group)
Fig. 2 is the embodiment of the invention 2 full open position structural representations (four framing groups)
Fig. 3 embodiment of the invention 1 (left side) and 2 (right side) transition condition structural representation
Fig. 4 is embodiment 1,2,6 and 7 complete collapsed state skeleton structure scheme drawings (left side is three framing groups, and the right side is four framing groups)
Fig. 5 is embodiment 3 full open position structural representations and center partial enlarged drawing
Fig. 6 is embodiment 3 and 8 collapsed state skeleton structure scheme drawings
Fig. 7 is the local cutaway view Amplified image in embodiment 4 full open position structural representations and center
Fig. 8 is embodiment 4 incomplete decomposing figure
Fig. 9 is embodiment 4 transition condition structural representations
Figure 10 is embodiment 4 complete collapsed state structural representations
Figure 11 is embodiment 5 full open position structural representations
Figure 12 is embodiment 5 incomplete decomposing figure
Figure 13 is embodiment 5 complete collapsed state structural representations and connects pedestal inner structure scheme drawing
Figure 14 be embodiment 1 (descending) and 4 (on) limit open mode scheme drawing
Figure 15 is that embodiment 1 (right side) is connected the base construction scheme drawing with 3 (left sides)
Figure 16 is embodiment 1 (going up a left side), 2 (going up a left side), 3 (going up right) and 4 (descending) frame set structural representation
Figure 17 be embodiment 1 (left side), 2 (left sides), 3 (in) and 4 (right side) stand scheme drawing
Figure 18 is embodiment 6 full open position structural representations (three framing groups)
Figure 19 is embodiment 6 limit open mode lateral plans
Figure 20 is embodiment 7 full open position structural representations (four framing groups)
Figure 21 is the lateral plan of Figure 20
Figure 22 is embodiment 8 full open position structural representations
Figure 23 is embodiment 9 full open position (also being ultimate limit state) structural representations
Figure 24 is Figure 23 transition condition lateral plan (having omitted sack and rope)
Figure 25 is the complete collapsed state skeleton structure of a Figure 24 scheme drawing
Figure 26 is the complete collapsed state birds-eye view of Figure 25
Figure 27 is embodiment 10 full open position structural representations
Figure 28 is embodiment 10 complete collapsed state skeleton structure scheme drawings
Figure 29 is employed castor among the embodiment 9,10,11 (left side is cardan wheel, and the right side is a directional wheel)
Figure 30 is embodiment 11 full open position (also being ultimate limit state) structural representations
Figure 31 is embodiment 11 and 12 transition conditions (left side) and complete collapsed state (right side) skeleton structure scheme drawing
Figure 32 is the shopping cart full open position structural representation that comprises embodiment 9 shown in the embodiment 12
Figure 33 is the shopping cart full open position structural representation that comprises embodiment 11 shown in the embodiment 12.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is specified.
What consult the signal of accompanying drawing 1,3 and 4 present embodiments is a kind of retractable purchasing article skeleton, comprises connecting pedestal 8 and frame set, illustrates in the retractable purchasing article skeleton to comprise three framing groups.
Shown in Fig. 1 and 15 (right side), the connection pedestal 8 of present embodiment comprises three auricles 11 and pedestal center shaft 9; Every framing group comprises stand 5, middle frame 6 and internal frame 7, and each frame set is movably connected on the auricle 11 that connects pedestal 8, and integral body is the center with pedestal center shaft 9.The two ends of middle frame 6 are movably connected on first point of connection 1 and second point of connection 2 with the connecting bridge 25 of stand 5 with the auricle that is connected pedestal 8 11 respectively; The two ends of internal frame 7 are movably connected on the 3rd point of connection 3 and the 4th point of connection 4 with the connecting bridge 25 of stand 5 with the auricle that is connected pedestal 8 11 respectively.Shown in Fig. 1 and 16, above-mentioned first, second, third and fourth four flexibly connect some line formation a parallelogram, this parallelogram and said pedestal center shaft 9 coplanes.Shown in Figure 17 and 3, stand 5 can be divided into connecting bridge 25 and base portion 26, and the connecting bridge 25 of wherein stand 5 mainly is used for flexibly connecting with middle frame 6 and internal frame 7, and first point of connection 1 and the 3rd point of connection 3 are all on the connecting bridge 25 of stand; Because the opposite side of parallelogram is parallel to each other; So it is parallel with pedestal center shaft 9 that the base portion 26 of stand 5 can be designed to; Like this, in the folding and unfolding process of said retractable purchasing article skeleton, if make said pedestal center shaft 9 keep vertical state; Except that the connecting bridge 25 of said stand 5, other base portion 26 also constantly keeps vertical state so.
Motion principle according to parallelogram; Four of retractable purchasing article skeleton complete collapsed state that the folding and unfolding state is respectively Fig. 4 (left side) shown in the present embodiment; The transition condition of Fig. 3 (left side), the limit open mode of the full open position of Fig. 1 and Figure 14 (descending).As shown in Figure 4; When retractable purchasing article skeleton is in complete collapsed state; The vertical distance of first point of connection 1 in all frame set or the 3rd point of connection 3 and pedestal center shaft 9 is minimum, and the base portion 26 of stand is minimum with the angle of middle frame 6, the volume minimum that whole skeleton is shared; As shown in Figure 1, when skeleton was in full open position, the vertical distance of first point of connection 1 or the 3rd point of connection 3 and pedestal center shaft 9 was maximum in all frame set, and the base portion 26 of stand 5 is vertical with middle frame 6, skeleton volume maximum; As shown in Figure 3, transition condition is between complete collapsed state and full open position, but the ultimate range between middle frame 6 and the internal frame 7 appears at transition condition; Shown in Figure 14 (descending), limit open mode is maximum open mode (full open position also might be a limit open mode), and the base portion 26 of stand 5 and the angle between the middle frame 6 are maximum, and the distance between middle frame 6 and the internal frame 7 is minimum.
Because the motion principle of parallel four limit row has been adopted in retractable purchasing article skeleton middle frame group and the connection that connects pedestal 8, the stand 5 of frame set, middle frame 6, internal frame 7 and is connected four connecting rods of the above-mentioned parallel four limit row of pedestal 8 common compositions are so will open a framing group wherein; Only need arrest frame set with hand; It is rotated around second point of connection 2 and the 4th point of connection 4 get final product, at this moment, begin from the complete collapsed state of Fig. 4; The angle of frame 6 and internal frame 7 increases gradually in the stand 5 relatively; Distance between middle frame 6 and the internal frame 7 increases gradually, and first point of connection 1 and the 3rd point of connection 3 increase perpendicular to the distance of pedestal center shaft 9 gradually, and this moment, frame set was as shown in Figure 3 in an interim state; When above-mentioned parallelogram becomes in the rectangle, the distance between middle frame 6 and the internal frame 7 is maximum; Maximum perpendicular to the distance of pedestal center shaft 9 when first point of connection 1 or the 3rd point of connection 3, the base portion 26 of stand 5 reaches full open position, like Fig. 1 during perpendicular to middle frame 6; Continue to open, the angle of frame 6 and internal frame 7 increases to maximum in stand 5 relatively, and the distance between middle frame and 6 internal frames 7 hour, and the open mode that reaches capacity is like Figure 14 (descending).Frame set pack up that vice versa.
It more than is the folding and unfolding situation of a frame set; If whole retractable purchasing article skeleton needs folding and unfolding; Except taking said method; Can also arrest a connection pedestal 8 or a framing group with hand, whole skeleton is inverted, all frame set can be opened under the combined action of gravity and hand together so.Vice versa.
Consult accompanying drawing 2 to 4, what present embodiment was illustrated is a kind of retractable purchasing article skeleton, comprises connecting pedestal 8 and frame set, illustrates in the retractable purchasing article skeleton to comprise four framing groups.The difference of the relative embodiment 1 of present embodiment is one: a framing group that present embodiment is many.Two: present embodiment connects many auricles 11 on the pedestal 8.Other is identical with embodiment 1.
Consult accompanying drawing 5, what present embodiment was illustrated is a kind of retractable purchasing article skeleton, comprises connecting pedestal 8 and frame set, illustrates in the framework that can put to comprise four framing groups.
Present embodiment is compared with embodiment 2; Auricle 11 on difference one: the embodiment 1 connection pedestal 8 has become the joint pin 10 of present embodiment; Like Fig. 5, shown in 6 and 15, each frame set is movably connected on second point of connection 2 and the 4th point of connection 4 with the joint pin 10 of protrusion on being connected pedestal 8.Difference two: the shape and the structure of the stand 5 in the present embodiment frame set, middle frame 6 and internal frame 7 are done change slightly, and the distance between middle frame 6 and the internal frame 7 is littler, and the framework inner space that is in like this under the complete folding and unfolding state is wideer, sees Fig. 6.No matter but the stand of frame set 5, middle frame 6, internal frame 7 and be connected the four connecting rod profiles that pedestal 8 forms and how adjust all can use the principle of parallelogram to connect and folding and unfolding.Remove above-mentioned difference, other are different for present embodiment and embodiment 2 nothings.
Embodiment 4
Consult accompanying drawing 7 to 10, what present embodiment was illustrated is a kind of retractable purchasing article skeleton, comprises connecting pedestal 8 and frame set, illustrates in the framework that can put to comprise six framing groups.
Present embodiment and embodiment 1 contrast; Difference one: connect the auricle 11 that has not had protrusion on the pedestal 8, increased the folding and unfolding groove 12 of depression, shown in Fig. 7 to 10; Present embodiment is an example with six framing groups, each frame set be connected pedestal and be movably connected in six folding and unfolding grooves 12.Shown in Fig. 7 and 8; The sulculus that two placement clamps 14 are all arranged in each folding and unfolding groove 12; Frame set be connected the bottom that second point of connection 2 that pedestal 8 flexibly connects and the 4th point of connection 4 are positioned at sulculus, clamp 14 is stuck in that sulculus is interior to be positioned second, four point of connection.As shown in Figure 8, connect pedestal 8 and can be divided at the bottom of base seat lid 23 and the pedestal 24, connect at the bottom of the pedestal 24 and be mainly used in and manufacture folding and unfolding groove 12, base seat lid 23 is mainly used in fixation clamp 14, and 24 two parts are fixedly connected into and are connected pedestal 8 at the bottom of base seat lid 23 and the pedestal.Difference two: embodiment 1 is three framing groups, and present embodiment is six framing groups, and the shape of the stand in the frame set 5, middle frame 6 and internal frame 7 and structure do change slightly, and shown in Figure 16 and 17, the base portion of stand 5 has become two sections from one section; Middle frame 6 has become circular cross-section rod from the channel-section bar of embodiment 1, and internal frame 7 has become bar plate unit block assembly rack from the single pole structure.No matter but the stand of frame set 5, middle frame 6, internal frame 7 and be connected the four connecting rod profiles that pedestal 8 forms and how adjust all can use the principle of parallelogram to connect and folding and unfolding.Remove above-mentioned difference, other are different for present embodiment and embodiment 1 nothing.
Consult accompanying drawing 11 to 13, what present embodiment was illustrated is a kind of retractable purchasing article skeleton, comprises connecting pedestal 8 and frame set, illustrates in the framework that can put to comprise eight framing groups.
Shown in Figure 12 and 13, present embodiment is compared with embodiment 3, difference one: do not had the clamp 14 of location usefulness in each folding and unfolding groove 12, many two coupling links 13; Frame set be connected pedestal 8 and be movably connected in the folding and unfolding groove 12 through coupling link 13; Formed second point of connection 2 and the 4th point of connection 4 lay respectively at two coupling link 13 hinged places; 24 are mainly used in to two coupling links 13 and position two parts captive joint at the bottom of the base seat lid 23 that connects pedestal 8 and the pedestal.Difference two: the cross section and the profile of the stand 5 in the frame set, middle frame 6 and internal frame 7 are done variation slightly.No matter but the stand of frame set 5, middle frame 6, internal frame 7 and be connected the four connecting rod profiles that pedestal 8 forms and how adjust all can use the principle of parallelogram to connect and folding and unfolding.Remove above-mentioned difference, other are different for present embodiment and embodiment 3 nothings.
Consult accompanying drawing 18 and 19, what present embodiment was illustrated is a kind of retractable portable shopping basket, comprise connecting pedestal 8, and frame set, sack 15 and rope 16 perhaps also comprise backing block 22, illustrate in the retractable portable shopping basket to comprise three framing groups.
Shown in the present embodiment is to be the portable shopping basket of skeleton with embodiment 1, on the retractable purchasing article skeleton of embodiment 1, has installed sack 15 and rope 16 additional.Sack 15 can be a flexible or yielding sack such as cloth bag, mesh bag or plastic product bag, so that folding and folding and unfolding.Sack 15 links to each other with retractable purchasing article skeleton, makes things convenient for loading, and is also convenient retracted.The folding and unfolding of present embodiment shopping basket is identical with embodiment's 1, and just when skeleton was opened fully, sack 15 can be opened into the frame shape of basket with it, and was shown in figure 18; When shopping basket was packed up fully, sack 15 can be retracted to the umbrella that folds with it, and was as shown in Figure 4.Load onto rope and be portable for ease, shown in figure 18, rope 16 can be connected on the retractable purchasing article skeleton, also can be connected on the sack 15.Rope can be a rope, belt, chain, leather strap or other flexible or yielding structure.Because sack 15 all is flexible with rope 16 or yielding material is processed, so can follow the overall shape of retractable purchasing article skeleton in the folding and unfolding process.
Shown in figure 19; Also can on the middle frame 6 of shopping basket or internal frame 7, load onto backing block 22, backing block 22 is a small rectangular block, in the folding and unfolding process of frame set; When retractable purchasing article skeleton reaches capacity state; Shopping basket has also reached limit open mode, and between frame 6 and the internal frame 7, frame 6 kept certain distance with internal frame 7 in making during at this moment backing block 22 just in time was stuck in; Thereby the parallelogram that above-mentioned four points of connection is formed keeps certain shape, reaches frame set is stopped around connecting the purpose that pedestal rotates.
Because the portable shopping basket of the folding and unfolding shown in the present embodiment comprises the retractable purchasing article skeleton shown in the embodiment 1, so, except that the characteristic of above-mentioned increase; Other is local all identical with embodiment 1 with usage, opens loading during use, and basket is begun a new line as common; When not using; It is very little to pack up storage and portable volume, easily, is similar to the umbrella that folds.
Consult accompanying drawing 20 and 21, what present embodiment was illustrated is a kind of retractable portable shopping basket, comprise connecting pedestal 8, and frame set, sack 15 and rope 16 perhaps also comprise backing block 22, illustrate in the retractable portable shopping basket to comprise four framing groups.The difference of the relative embodiment 6 of present embodiment is one: a framing group that present embodiment is many.Two: present embodiment connects many auricles 11 on the pedestal 8.Other is identical with embodiment 6.
Consult accompanying drawing 22, what present embodiment was illustrated is a kind of retractable portable shopping basket, comprise connecting pedestal 8, and frame set, sack 15 and rope 16 perhaps also comprise backing block 22, illustrate in the retractable portable shopping basket to comprise four framing groups.
The difference of present embodiment and embodiment 6 is that the shopping basket shown in the embodiment 6 is a skeleton with embodiment 1, and the retractable portable shopping basket shown in the present embodiment then is with embodiment 3 skeletons.In addition; Backing block 22 not necessarily; Because the retractable purchasing article skeleton shown in the embodiment 3 is in order to have bigger inner space; Its middle frame 6 and the distance between the internal frame 7 are very little, we can say that the full open position of embodiment 3 and present embodiment is exactly limit open mode (a maximum open mode).In addition, all identical with embodiment 5.
Consult accompanying drawing 23 to 26, what present embodiment was illustrated is a kind of retractable portable shopping trolley, comprises connecting pedestal 8; Frame set, sack 15, rope 16 and castor; Perhaps also comprise backing block 22, illustrate in the retractable portable shopping trolley and comprise four framing groups, four castors.
Present embodiment is the portable shopping trolley that comprises embodiment 7, has been to have adorned castor with embodiment 7 maximum differences more.
Shown in figure 29, castor can be that directional wheel can be a cardan wheel also, comprises castor wheel 17 and castor wheel seat 18, if castor is cardan wheel then also comprises cardan wheel rotating mechanism 19 that rotating mechanism 19 has S. A. 20.Shown in Figure 23 and 24; An end of frame 6 and internal frame 7 during castor wheel seat 18 is movably connected in through described first point of connection 1 and the 3rd point of connection 3, therefore, castor wheel seat 18 also is equivalent to a connecting rod in the above-mentioned parallelogram; It cooperates with the connecting bridge 25 of stand 5; Can folding and unfolding, and in the folding and unfolding process with the folding and unfolding of retractable purchasing article skeleton, the S. A. 20 of cardan wheel rotating mechanism 19 can be all the time and the pedestal central axes; Wheel 17 and S. A. 20 be vertical level 27 at any time, so just meets the normal mounting method of application of castor.
Present embodiment has adopted four castor layouts shown in Figure 23 to 26, and wherein two directional wheels are symmetrically arranged, symmetric arrangement before and after two cardan wheels.When shopping cart is in complete collapsed state, can not interfere with each other for making each castor, and dwindle the volume after the folding and unfolding as far as possible, make things convenient for portable, but the length of each frame set of appropriate change.Shown in figure 25, about being used to install two directional wheels about two framing groups shorter than front and back two frame set, such layout is vacateed the folding and unfolding position of two directional wheels effectively, has saved volume.Because cardan wheel itself can rotate around S. A. 20, so also can not interfere with each other.
Said retractable portable shopping trolley is except above-mentioned characteristic and embodiment 7 are different, and further feature is all identical with the folding and unfolding mode.In the loading use of shopping cart, both can carry (castor does not land), also can begin a new line (castor lands) as shopping basket is unsettled with partly carrying half.
Consult accompanying drawing 27 and 28, what present embodiment was illustrated is a kind of retractable portable shopping trolley, comprises connecting pedestal 8; Frame set, sack 15, rope 16 and castor; Perhaps also comprise backing block 22, illustrate in the retractable portable shopping trolley and comprise three framing groups, three castors.
The maximum difference of shopping cart shown in present embodiment and the embodiment 9 is that present embodiment has lacked a framing group, has lacked a castor, and has taked other a kind of castor layout type.Present embodiment has used three castor layouts shown in Figure 27 and 28, and wherein three castors all are cardan wheels.
Except above-mentioned points, present embodiment and embodiment 9 do not have other difference.
Consult accompanying drawing 30 and 31, what present embodiment was illustrated is a kind of retractable portable shopping trolley, comprises connecting pedestal 8; Frame set, sack 15, rope 16 and castor; Perhaps also comprise backing block 22, illustrate and comprise four framing groups and four castors in the retractable portable shopping trolley.
The difference of present embodiment and embodiment 9 is, embodiment 9 is to be retractable skeleton with embodiment 2, and the retractable portable shopping trolley shown in the present embodiment then is to be skeleton with embodiment 3.In addition, the layout relationship between castor and the retractable purchasing article skeleton is also inequality.All castors shown in the embodiment 9 all are installed on first point of connection 1 and the 3rd point of connection 3; The folding and unfolding space of two directional wheels about the strategy of two framing groups is vacateed about taking to shorten; Such benefit is that the complete collapsed state volume of shopping cart is little, but the full open position volume is also correspondingly smaller.And present embodiment is retractable purchasing article skeleton with embodiment 3; Has bigger inner space; Except the placement strategy that can adopt caster wheel shown in the embodiment 9 and retractable purchasing article skeleton, also can front and back two castors be arranged in the inside of retractable purchasing article skeleton.Shown in Figure 30 and 31, two castors before and after the framework internal placement, front-wheel is a cardan wheel, and is distant apart from pedestal center shaft 9 when opening fully; Trailing wheel is a directional wheel, and is closer apart from pedestal center shaft 9 when opening fully.Take this layout; After carrying apparatus is packed up fully; Can not interfere with each other between the castor and between the framework; The length of two frame set has increased the volume after carrying apparatus is opened so virtually, but also can correspondingly increase the volume after packing up before and after also needn't painstakingly dwindling for the folding and unfolding space of castor before and after vacateing.In addition, though the front and back two-wheeled is an asymmetric layout, can't bring unbalanced rotating torque.
According to the difference of the retractable purchasing article skeleton shown in the embodiment 1 to 5, the layout relationship of castor also can change, and except above-mentioned position, also can castor be installed on a plurality of positions of said frame set, and be installed in the bottom that connects pedestal.As long as the layout relationship between all castors and the retractable purchasing article skeleton can not interfere with each other clamping stagnation and get final product under the situation that guarantees balance between the castor when the folding and unfolding frame set.
Retractable portable shopping trolley shown in the present embodiment is except above-mentioned characteristic and embodiment 9 are different, and further feature is all identical with the folding and unfolding mode.
Consult accompanying drawing 32 and 33, what present embodiment was illustrated is a kind of retractable portable shopping trolley, comprises connecting pedestal 8; Frame set; Sack 15, rope 16, castor and hauling rope 21; Perhaps also comprise backing block 22, illustrate and comprise four framing groups and four castors in the retractable portable shopping trolley.
Shown in Figure 32 and 33, present embodiment has been installed hauling rope 21 respectively more on the basis of embodiment 9 and 11.Wherein hauling rope 21 can be a rope, belt, chain; Leather strap or other flexible or yielding structure; Shopping cart hauling rope 21 shown in Figure 32 is connected on the castor wheel seat, and shopping cart hauling rope 21 shown in Figure 33 is connected on the frame set, can also connect on the sack.Retractable portable shopping trolley shown in the present embodiment can utilize rope or hauling rope to advance in ground taxi, can begin a new line as shopping basket again.
Shopping cart shown in the present embodiment is as adopting the retractable purchasing article skeleton of all steel system, the about 1.5KG of deadweight so, the about 15KG of load-carrying, specifically visual gauge lattice and deciding.
Except that above-mentioned difference, present embodiment Figure 32 and the shopping cart shown in 33 do not have with the shopping cart shown in embodiment 9 and 11 respectively that other are different.
Claims (10)
1.
OnePlant retractable purchasing article skeleton, comprise connecting pedestal (8) and frame set, it is characterized in that: said connection pedestal (8) has pedestal center shaft (9); Have three groups of said frame set at least in the said retractable purchasing article skeleton, all said frame set all are movably connected on the said connection pedestal (8); Same group of said frame set comprises stand (5), middle frame (6) and internal frame (7); Frame (6) is movably connected on first point of connection (1) and second point of connection (2) with said stand (5) with the said pedestal (8) that is connected respectively in said, and said internal frame (7) is movably connected on the 3rd point of connection (3) and the 4th point of connection (4) with said stand (5) with the said pedestal (8) that is connected respectively; Described first, second, third and fourth four points of connection line constitutes a parallelogram; Said parallelogram and said pedestal center shaft (9) coplane; The stand of said frame set (5), middle frame (6), internal frame (7) and said four connecting rods that are connected the said parallelogram of pedestal (8) formation; Motion principle according to parallelogram; Described parallelogram is in the time of said second point of connection (2) and the 4th point of connection (4) rotation; Said stand (5); Middle frame (6) can promptly be connected the folding and unfolding action that pedestal (8) is done to open and pack up around said the 4th connecting rod with (7) three connecting rods of internal frame, and therefore said purchasing article skeleton also can carry out folding and unfolding around connecting pedestal (8).
2. retractable purchasing article skeleton according to claim 1; It is characterized in that: said connection pedestal (8) has the joint pin (10) or the auricle (11) of a plurality of protrusions, and said frame set is movably connected on said joint pin (10) or the auricle (11).
3. retractable purchasing article skeleton according to claim 1; It is characterized in that: said connection pedestal (8) has a plurality of folding and unfolding grooves (12), and said frame set is movably connected in the said folding and unfolding groove (12) through coupling link (13) or clamp (14).
4. retractable purchasing article skeleton according to claim 1 is characterized in that: said stand (5) can be divided into connecting bridge (25) and base portion (26); The connecting bridge (25) of said stand (5) mainly is used for flexibly connecting with middle frame (6) and internal frame (7), and said first point of connection (1) and the 3rd point of connection (3) are on the connecting bridge (25); In the folding and unfolding process of said retractable purchasing article skeleton, if make said pedestal center shaft (9) perpendicular to horizontal surface (27), the base portion (26) of stand (5) is also constantly perpendicular to horizontal surface (27).
5. shopping basket of using the described retractable purchasing article skeleton of claim 1; Comprise the retractable purchasing article skeleton described in the claim 1; Also comprise sack (15) and rope (16), it is characterized in that: said sack (15) is connected with said retractable purchasing article skeleton; Said sack (15) can be a flexible or yielding sack such as cloth bag, mesh bag or plastic product bag; At least one of them links to each other said rope (16) with said retractable purchasing article skeleton or said sack (15); Said rope (16) can be a rope, belt, chain, leather strap or other flexible or yielding structure.
6. retractable portable shopping basket according to claim 5 is characterized in that: have backing block (22) between the middle frame (6) of said frame set and the internal frame (7), said backing block (22) can stop frame set around the rotation that connects pedestal (8).
7. shopping cart of using the described retractable purchasing article skeleton of claim 1; Comprise the retractable purchasing article skeleton described in the claim 1; Also comprise sack (15), rope (16) and castor, it is characterized in that: said sack (15) is connected with said retractable purchasing article skeleton; Said sack (15) can be a flexible or yielding sack such as cloth bag, mesh bag or plastic product bag; At least one of them links to each other said rope (16) with said retractable purchasing article skeleton or said sack (15); Said rope (16) can be a rope, belt, chain, leather strap or other flexible or yielding structure; Said castor comprises wheel (17) and wheel seat (18), if said castor is a cardan wheel, then also comprises cardan wheel rotating mechanism (19), and said cardan wheel rotating mechanism (19) has S. A. (20); Said wheel seat (18) is movable to be connected on first point of connection (1) and the 3rd point of connection (3) of said frame set; Said castor can the folding and unfolding with the folding and unfolding of said retractable purchasing article skeleton, and the S. A. (20) of said cardan wheel rotating mechanism (19) is constantly parallel with said pedestal center shaft (9) in the folding and unfolding process.
8. according to the retractable portable shopping trolley described in the claim 7, also comprise hauling rope, it is characterized in that: said hauling rope (21) can be structures such as rope, belt, chain or leather strap; Said hauling rope can be connected said frame set, on sack (15) or the caster base (18).
9. according to the retractable portable shopping trolley described in the claim 7, it is characterized in that: said castor wheel seat (18) also can be installed in said frame set or connect the bottom of pedestal (8); Said portable shopping trolley has two described castors at least.
10. according to any described retractable portable shopping trolley in the claim 7 to 9; It is characterized in that: have backing block (22) between the middle frame (6) of said frame set and the internal frame (7), said backing block (22) can stop frame set around the rotation that connects pedestal (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102021687A CN102390585A (en) | 2011-07-19 | 2011-07-19 | Retractable shopping device framework, as well as corresponding shopping basket and shopping cart |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102021687A CN102390585A (en) | 2011-07-19 | 2011-07-19 | Retractable shopping device framework, as well as corresponding shopping basket and shopping cart |
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| CN102390585A true CN102390585A (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102021687A Pending CN102390585A (en) | 2011-07-19 | 2011-07-19 | Retractable shopping device framework, as well as corresponding shopping basket and shopping cart |
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| CN (1) | CN102390585A (en) |
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| CN103693086A (en) * | 2013-12-04 | 2014-04-02 | 金旭刚 | Foldable trolley |
| CN107117368A (en) * | 2017-06-06 | 2017-09-01 | 句容市万福达工艺品厂 | A kind of Packing netted bag |
| CN109747919A (en) * | 2019-01-30 | 2019-05-14 | 安徽淮昇机械制造有限公司 | Storage cage |
| CN111498259A (en) * | 2020-04-26 | 2020-08-07 | 惠州学院 | Leak protection formula corrugated box of packing usefulness |
| CN111934081A (en) * | 2020-07-30 | 2020-11-13 | 宗燕明 | Antenna winding and unwinding devices |
| WO2023103588A1 (en) * | 2021-12-07 | 2023-06-15 | 赵晨鹿 | Folding outdoor cart |
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| CN201793079U (en) * | 2010-01-19 | 2011-04-13 | 唐会联 | Foldable water bag |
| CN202146126U (en) * | 2011-07-19 | 2012-02-22 | 任文 | Retractable shopping device framework and corresponding shopping basket and shopping cart |
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| CN201258123Y (en) * | 2008-09-28 | 2009-06-17 | 杭州电子科技大学 | Folding basket |
| CN201793079U (en) * | 2010-01-19 | 2011-04-13 | 唐会联 | Foldable water bag |
| CN202146126U (en) * | 2011-07-19 | 2012-02-22 | 任文 | Retractable shopping device framework and corresponding shopping basket and shopping cart |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103693086A (en) * | 2013-12-04 | 2014-04-02 | 金旭刚 | Foldable trolley |
| CN107117368A (en) * | 2017-06-06 | 2017-09-01 | 句容市万福达工艺品厂 | A kind of Packing netted bag |
| CN109747919A (en) * | 2019-01-30 | 2019-05-14 | 安徽淮昇机械制造有限公司 | Storage cage |
| CN111498259A (en) * | 2020-04-26 | 2020-08-07 | 惠州学院 | Leak protection formula corrugated box of packing usefulness |
| CN111498259B (en) * | 2020-04-26 | 2021-09-03 | 惠州学院 | Leak protection formula corrugated box of packing usefulness |
| CN111934081A (en) * | 2020-07-30 | 2020-11-13 | 宗燕明 | Antenna winding and unwinding devices |
| WO2023103588A1 (en) * | 2021-12-07 | 2023-06-15 | 赵晨鹿 | Folding outdoor cart |
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Application publication date: 20120328 |