A kind of folding device for bicycle or battery-driven car
Technical field
The present invention relates to a kind of folding device for bicycle or battery-driven car, especially refer to a kind of easy folding, ease of assembly, the folding device of convenient for maintaining.
Background technology
In modern society, battery-driven car has become one of first-selection of people's vehicle, then, because the occupation of land space is large, deposits the battery-driven car limited space, and a lot of battery-driven cars squeeze puts together, the access inconvenience.And common battery-driven car can not fold, not only be difficult to bring up to move down, and put at home and can take very large usage space, be parked in that corridor had both taken up space and easily lose.A lot of folded bicycles occurred now, the folding device complexity of using first will be installed folding joint when assembling, and then mounting handle, and complex installation process is difficult for installing.In addition, during the folded bicycle of the common folding device of maintenance and installation, removing joint needs a lot of special-purpose spanners, is difficult for removing.The more important thing is, common folding device has a lot of subsidiary parts, hard and time-consuming during installation.
Summary of the invention
For the defect existed in prior art and deficiency, the present invention proposes a kind of folding device for bicycle or electric vehicle, relates in particular to and uses the folding folding device of pivoting method.
For achieving the above object, the present invention adopts following technical scheme:
A kind of folding device for bicycle or battery-driven car, comprise rotating shaft and locking and fixing device, and described rotating shaft comprises rotating shaft core and the shaft sleeve that can hold rotating shaft core; The rotating shaft core upper end is fixedly connected with the crossbeam of frame front triangle, and the shaft sleeve lower end is connected with chain pulley seat or motor cabinet; Described locking and fixing device is arranged on the middle pipe that runs through the frame front triangle crossbeam.
Further, the locking screw female seat that described locking and fixing device comprises a pair of central zone screw, a lower end that is fixed on upper intermediate tube 31 in described a pair of locking screw female seat, another is fixed on the upper end of lower intermediate tube 32, screws in screw with screw described locking screw female seat is fixed together.
Further, described folding device also comprises spring, spring buckle, safety buckle base, safety buckle;
One end of described spring is arranged in the rotating shaft core tube wall, other end linking springs button, and be provided with a hole A corresponding with spring buckle at the spring buckle transverse axis on corresponding rotating shaft core tube wall;
Described safety buckle base is arranged on the shaft sleeve outer wall, and described safety buckle is installed on the safety buckle base, and forms hole B with the safety buckle base, and described hole B is corresponding with hole A.
Further, on described safety buckle base, be provided with draw-in groove, described safety buckle is up and down along draw-in groove.
Further, on rotating shaft core, bearing can be housed, in shaft sleeve, bearing can also be housed.
Advantage of the present invention is: (1) is easy to assembly, common folded bicycle need to first be installed folding joint when assembling, and then mounting handle, installs complicated, the present invention only need to rotate to rotating shaft core in shaft sleeve, uses spiral shell to order locking and fixing device is fixed and got final product.(2) easy to maintenance, dismantle difficulty during the maintenance of common folded bicycle joint, need the spanner of a variety of special uses, the present invention only needs a kind of spanner just each parts of battery-driven car can be opened fully, easy to disassemble and assemble.(3) foldable, save space.The present invention is the same with other common folded bicycles when folding, but maximum advantage is folding with the method realization of rotating shaft, laborsaving when folding, saves time.
The accompanying drawing explanation
Fig. 1 is one embodiment of the invention, applies the folding front schematic diagram of battery-driven car of folding device of the present invention;
Fig. 2 is one embodiment of the invention, applies the folding front block diagram of battery-driven car of folding device of the present invention;
Fig. 3 is one embodiment of the invention, applies the folding front lateral plan of battery-driven car of folding device of the present invention;
Fig. 4 is one embodiment of the invention, applies the folding rear design sketch of battery-driven car of folding device of the present invention;
Fig. 5 is one embodiment of the invention, applies the exploded drawings of the battery-driven car of folding device of the present invention;
Fig. 6 is 8 lateral plan in Fig. 5;
Fig. 7 is another embodiment of the present invention, applies the exploded drawings of the battery-driven car of folding device of the present invention;
Fig. 8 is another embodiment of the present invention structural representation;
Fig. 9 is another embodiment of the present invention structural representation;
Figure 10 is another embodiment of the present invention, applies the folding rear design sketch of battery-driven car of folding device of the present invention;
Figure 11 is A-A mono-structural representation in Figure 10, structural representation when spring buckle separates with shaft sleeve;
Figure 12 is another structural representation of A-A in Figure 10, structural representation when spring buckle engages with shaft sleeve;
Figure 13 is another embodiment of the present invention reference view;
Figure 14 is the reference view of spring buckle while separating with shaft sleeve;
Figure 15 is the reference view of spring buckle while engaging with shaft sleeve.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 is the folding front schematic diagram of battery-driven car one embodiment of application folding device of the present invention; Fig. 2 is the folding front block diagram of the battery-driven car of application folding device of the present invention; Fig. 5 is the exploded drawings of the battery-driven car of this embodiment; Fig. 6 is 8 lateral plan in Fig. 5.As shown in Fig. 1,2,5,6, a kind of folding device for battery-driven car provided by the invention, comprise rotating shaft 1, locking and fixing device 2.The shaft sleeve 13 that described rotating shaft comprises rotating shaft core 7 and can hold rotating shaft core.Front fork 8 is managed 5 by head and is connected rotationally with the crossbeam 4 of frame front triangle, rotating shaft 1 upper end is fixedly connected with the crossbeam 4 of frame front triangle, shaft sleeve 13 lower ends are connected with motor cabinet 17, middle pipe 3 runs through the crossbeam 4 of frame front triangle, battery-driven car vehicle seat (not shown) is installed in its upper end, lower end, upper intermediate tube 31 lower ends are connected with the following locking and fixing device that will illustrate 2, and vehicle frame Vee formation lower front end is connected with motor cabinet 17.
As shown in Figure 5, the locking screw female seat 21,22 that the locking and fixing device 2 of the present embodiment comprises a pair of central zone screw, one of them locking screw female seat 21 is arranged on upper intermediate tube 31 lower ends, and another locking screw female seat 22 is arranged on lower intermediate tube 32 upper ends.Wherein, lower intermediate tube 32 is positioned at vehicle frame Vee formation middle part.When locking and fixing device is fixed on battery-driven car by folding device, the screw that screw 24 screws in a pair of locking screw female seat 21,22 is fixed together, plays the effect be locked.
As shown in Figure 5, rotating shaft core 7 can be equipped with bearing 71, and bearing 71 can comprise bowl 9 No. six, packing ring 10, steel ball 11, lower bowl 12; Also bearing 131 can be housed in shaft sleeve 13, bearing 131 can comprise bowl 14,11, No. three bowls 15 of steel ball, 10, numbers bowls 16 of packing ring; The shaft sleeve 13 that will insert with bearing with the rotating shaft core 7 of bearing, shaft sleeve can be around rotating shaft core 7 flexible rotatings.The state of the battery-driven car of the present invention before folding as shown in Figure 3.Need when folding, to open the fixing locking and fixing device of screw 2, rotating shaft just can make folding being in juxtaposition before and after vehicle frame Vee formation and front fork.Design sketch after folding as shown in Figure 4.The present invention has realized saving time folding, laborsaving with pivoting method.
When the battery-driven car of installing with folding device of the present invention, as long as rotating shaft core 7 is inserted in shaft sleeves 13, use screw get final product locking screw female seat 21,22 is fixing, so more convenient when the installation folded bicycle.And, when maintenance and installation has the battery-driven car of folding device of the present invention, only rotating shaft core need to be extracted from the rotating shaft axle sleeve, use a kind of spanner that the screw of locking and fixing device is turned on and get final product, so the invention enables folded bicycle very convenient when maintenance.
Fig. 7, for the decomposing schematic representation of another embodiment of battery-driven car of application folding device of the present invention, has increased spring 18, spring buckle 19, safety buckle base 29, safety buckle 28 on the basis of said structure.As shown in Figure 8, an end 181 of spring 18 is arranged in the rotating shaft core tube wall, the other end 182 linking springs buttons 19, and be provided with a hole A corresponding with spring buckle at the spring buckle transverse axis on corresponding rotating shaft core tube wall.As shown in Figure 9, safety buckle base 29 is fixed on shaft sleeve 13 outer walls by screw 20 and 26, and the pad 56 on safety buckle 28 is fixed on safety buckle by screw 27, and safety buckle and safety buckle base formation hole B, and hole B is corresponding with hole A.Be provided with draw-in groove on safety buckle base 29, safety buckle can be up and down along draw-in groove.
As Fig. 2,9,10,11, shown in 14, rotating shaft core 7 inserts in shaft sleeve 13, and upwards, along the draw-in groove mobile security button 28 of safety buckle base, the pad 56 on safety buckle 28 promotes spring buckle 19, spring buckle 19 is separated with shaft sleeve 13, after opening fixed lock device 2, shaft sleeve 13 can freely rotate around rotating shaft core 7, and rotating shaft just can make folding being in juxtaposition before and after vehicle frame Vee formation and front fork; As Figure 10, shown in 12,15, along the draw-in groove mobile security button 28 of safety buckle base, spring buckle 19 engages with shaft sleeve by hole A downwards, and safety buckle and safety buckle base form hole B, and hole A is corresponding with hole B, plays fixation.Device of the present invention is simple, easily operation, and stationarity is strong, safe.
Although the present invention discloses as above with preferred embodiment; yet it is not in order to limit protection scope of the present invention; any those skilled in the art; without departing from the spirit and scope of the invention; when doing a little change and retouching, so the present invention's protection domain is applied for a patent the claim scope person of defining and is as the criterion when looking.For example, the present invention can be applied on the similar device of all and electric vehicle structure, such as, bicycle.The motor cabinet of battery-driven car will be replaced by the chain pulley seat of bicycle accordingly so.And locking and fixing device used in the present invention is not limited to paired locking screw female seat, can use the part with fixation of all conveniently assemble and disassembles herein, such as Fixture for tube of seat.