CN1944155A - Electric vehicle chassis - Google Patents
Electric vehicle chassis Download PDFInfo
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- CN1944155A CN1944155A CN 200610095186 CN200610095186A CN1944155A CN 1944155 A CN1944155 A CN 1944155A CN 200610095186 CN200610095186 CN 200610095186 CN 200610095186 A CN200610095186 A CN 200610095186A CN 1944155 A CN1944155 A CN 1944155A
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Abstract
The present invention is chassis for electric vehicle, and the chassis has one end supported with two driving wheels and the other end supported with two walking wheels. The chassis is divided into two parts longitudinally, and these two parts are connected by means of one or several parallel sliding pairs. Between these two parts, there are one telescopic driving mechanism for altering the longitudinal distance between these two parts and one separation preventing mechanism to limit the maximum distance. The electric vehicle with the chassis may be used both outside room and inside room.
Description
Technical field
The present invention relates to electric cycle, relate in particular to the Undercarriage structure of electric cycle.
Background technology
Battery-driven car is as one of vehicle because environmental protection, simple in structure, operation is simple and easy, and more and more causes people's attention.Especially in having, short travelled distance, low-tach, single four-wheel of riding or three-wheel electric cycle, bring great convenience for especially the elderly or individuals with disabilities's etc. traffic.
In these electric cycle products, mainly contain two types at present.A kind of is that its front and back wheel wheelbase is grown (generally greater than 800 millimeters) and had the outdoor type electric cycle that turns to road wheel.Its main out of doors garden path, the road in the sub-district or on operating range not far highway and footway, for uses such as the elderly or individuals with disabilities.Because its wheelbase is longer, when uphill/downhill, braking or acceleration, the accident of tumbling before and after being not easy to occur; But also longer because of its wheelbase, corresponding turn radius is just bigger, and space occupied when just turning is bigger, thereby is not suitable for moving in indoor narrower space.For example, the elderly or individuals with disabilities at home, in the supermarket, just easily do not use this outdoor type electric cycle.Another kind is that the front and back wheel wheelbase is lacked (generally below 600 millimeters) and had the indoor type electric cycle (also claiming electric wheel-chair vehicle) of inertia road wheel.Turning to of this indoor type electric cycle is to rely on the velocity contrast of the drive wheel of two individual drive to be realized.When identical but its switched in opposite of the speed of two drive wheels, this electric wheel-chair vehicle can also rotate by the original place and realize turning.Because its front and back wheel wheelbase is shorter, so occupied space is minimum when turning, the elderly or individuals with disabilities at home, in the supermarket, just can use freely fully.Yet, same because its front and back wheel wheelbase is shorter, when the elderly or individuals with disabilities use this electric wheel-chair vehicle out of doors, under uphill/downhill, braking or acceleration situation, the accident of tumbling before and after as easy as rolling off a log the appearance.Therefore, in the type electric cycle design indoors, tumbling before and after preventing is a main problem.At present a lot of about the invention of the anti-tipping structure of indoor type electric cycle, the main thought of invention is on the basis of former indoor type electric cycle, increases anti-tipping wheel, is US 6 as the patent No., 938,923 B2, name are called the US Patent of electric wheel-chair vehicle (Power Wheelchair).For preventing that this car from tumbling forward, its center of gravity is moved after relatively; For preventing to tumble backward, this car has installed anti-tip wheel additional in the drive wheel back.This drive wheel is installed in same suspension arm with anti-tip wheel and links to each other with the support body of electric wheel-chair vehicle by hinge together, can drive the rightabout up-and-down movement of anti-dumping crop rotation when the drive wheel up-and-down movement, thereby reduces the possibility of turning over behind the wheel Wheel-chair.The possibility of tumbling before and after though the electric wheel-chair vehicle of above-mentioned band anti-tip wheel can reduce, but the wheelbase of wheel is shorter owing to travel in front and back, and anti-tip wheel is not to contact with ground all the time as the wheel that travels, so, in braking, accelerator, there is the bigger front and back luffing of electric wheel-chair vehicle again, and makes the occupant extremely uncomfortable.In addition, increased this anti-tip wheel after, when rotating in its original place of needs, occupied activity space also increases to some extent.So, just occurred not solving in the prior art, not only needed to prevent effectively to tumble, but also do not think to increase excessively the difficult problem in its turning space.
Summary of the invention
At the deficiencies in the prior art, the objective of the invention is, provide a kind of its turning space that both can reduce, the underframe of the electric cycle of tumbling before and after effectively preventing again when needing.
Solveing the technical problem, is a kind of like this underframe of electric cycle.One end of this underframe is supported on two drive wheels, and the other end of this underframe is supported on one or two road wheel.Improvements of the present invention are, two parts before and after this underframe is divided in the vertical are by a pair of sliding pair arranged in the vertical between two parts or many sliding pair that is parallel to each other is linked together.In other words, these two parts are by a pair of sliding pair or the many sliding pair that is parallel to each other is connected becoming a complete underframe.Such as known for those skilled in the art, described sliding pair must be made of jointly sliding pair outer tube and sliding pair inner sleeve.Obviously, according to other conditioned disjunction needs, on half underframe of drive wheel one end, can all be sliding pair outer tube or sliding pair inner sleeve, also can be the outer tube of existing sliding pair, also the inner sleeve of sliding pair be arranged; At sliding pair member on half underframe of this end of road wheel be and corresponding pairing the on half underframe of drive wheel one end.Telescopic drive mechanism and the escapement when this underframe is in the maximum elongation state that two parts of driving this underframe draw back in the vertical or close up are installed between two parts of this underframe.Obviously, according to other conditioned disjunction needs, described telescopic drive mechanism and escapement all can be realized with the known mechanism of existing any class.
Adopt the electric cycle of underframe of the present invention, both convenient outdoor use, convenient again indoor use.After the sliding pair of underframe closed up, electric cycle front and back wheel wheelbase shortened, and turn radius is little, can make things convenient for this car indoorly to use with lower speed narrower but very smooth; When spin in the needs original place, occupied space is little, makes things convenient for the elderly or individuals with disabilities, use freely in the supermarket at home.After the sliding pair of underframe drew back, electric cycle front and back wheel wheelbase was elongated, and it is big that turn radius becomes, can be big at motion space, uphill/downhill is more outdoor use with higher speed and be not easy to occur before and after tumble.The sliding pair of electric walk instead under-carriage draws back and closes up and can make two sectional type, multiple stage even adjust the form that changes continuously according to use or designing requirement).That is to say that the sliding pair by underframe draws back and closes up, it had both kept the little outstanding advantage of existing electric wheel-chair vehicle turn radius, had again simultaneously to be adjusted to the outdoor type electric cycle when needing like that because of the good advantage of the long riding stability of front and back wheel wheelbase.Because the effect of the escapement among the present invention is arranged, therefore, when allowing sliding pair draw back, two accidents that part comes off of sliding pair can not take place to make because of maloperation again, safety is good.And when people need be with the elderly or individuals with disabilities's long-term travel, only need escapement is untied, just can be under the excessive elongation of telescopic drive mechanism drive and make two parts of sliding pair break away from mutually, underframe of the present invention is split as the also little two parts of little, the single weight of single volume.Like this, just can be contained in them on the car of travelling easily, use (dismounting of other parts and assembling and existing for convenience detach same or similar with the stack-mounted electric cycle are not given unnecessary details at this) in order to re-assembly the back at Reiseziel for the elderly or individuals with disabilities.
The present invention is further illustrated below in conjunction with accompanying drawing.
Description of drawings
A kind of electric cycle of Fig. 1---application underframe of the present invention (when drawing back state) the structural representation shaft side figure
The electric cycle of Fig. 2---Fig. 1 is in the structural representation shaft side figure when closing up state
Fig. 3---the shaft side figure of (when being fully withdrawn state) a kind of electric walk instead under-carriage of the present invention
Fig. 4---the shaft side figure of when drawing back state (part) another kind of electric walk instead under-carriage of the present invention
Fig. 5---the shaft side figure of (when closing up state) another electric walk instead under-carriage of the present invention
Fig. 6---the shaft side figure of when drawing back state (part) another electric walk instead under-carriage of the present invention
Fig. 7---when drawing back (part) be the shaft side figure of another electric walk instead under-carriage of the present invention again
Fig. 8---pass through the wherein longitudinal profile of screw mandrel axis (amplification) figure among Fig. 4
Fig. 9---pass through the wherein longitudinal profile of screw mandrel axis (amplification) figure among Fig. 7
Figure 10---relate to the structural representation of escapement among the present invention
Figure 11---what the sliding pair of leading screw and nut mechanism and the sliding pair that leading screw and nut mechanism is not installed be installed among Fig. 4 cooperates degree of depth comparison diagram
The specific embodiment
A kind of underframe of electric cycle (with reference to figure 1～7).One end of this underframe is supported on two drive wheels 1, and the other end of this underframe is supported on one or two road wheel 3.Certainly, also be fixed with the seat frame that bicycle seat 5 is installed on this underframe, the outdoor type electric cycle of the mount pad of the mount pad of drive motor 4 and storage battery 6 etc., or the due structure of indoor type electric cycle is (because obvious, this part and following each example thereof, all only in conjunction with the indoor type electric cycle, be that electric wheel-chair vehicle is elaborated, road wheel 3 in Fig. 1 and Fig. 2 is two idle wheels), both can adopt the control handle form of present electric wheel-chair vehicle in addition based on the handling maneuver parts of electric cycle of the present invention, and also can adopt the outdoor type electric cycle to have the structure of bearing circle; If the latter is then with bearing circle rotary angle transmitter of continuous cropping mutually, by its perception occupant's steering direction and angle (what draw in Fig. 1 and Fig. 2 is the structural representation of latter instance).The electric cycle of the present invention of above-mentioned two kinds of forms turns to all and can realize with different rotational speed by two drive wheels of drive control circuit.Underframe of the present invention has the sliding pair that can change wheelbase between drive wheel 1 and the road wheel 3, that is: two parts before and after this underframe is divided in the vertical are a pair of sliding pair or many (promptly being connected into a complete underframe by sliding pair) that the sliding pair that is parallel to each other is linked together of arranging by in the vertical between two parts.Telescopic drive mechanism and the escapement when this underframe is in the maximum elongation state that two parts of driving this underframe draw back in the vertical or close up are installed between these two parts of this underframe.Obviously, this telescopic drive mechanism can be those of the prior art any mechanisms that drive with manpower, electric power, hydraulic pressure or air pressure that those skilled in the art has grasped; Described escapement also can be those skilled in the art grasped those can prevent of the prior art any mechanism of being separated from each other between the internal and external casing of sliding pair.
Disclose so far,, can reproduce fully that the present invention is this to have combined the underframe of existing electric wheel-chair vehicle and outdoor type electric cycle advantage those skilled in the art.So a last paragragh also is following each routine summation.Content identical with this summation part in following each example is not given unnecessary details.
Embodiment 1:
This example is on summation part basis, be primarily aimed at the quantity, arrangement of sliding pair wherein and associated mechanisms relation thereof for example.In this example, sliding pair has three couple who is arranged in parallel, in a pair of sliding pair in the middle of telescopic drive mechanism is installed in (with reference to figure 3, Fig. 4).On the underframe of road wheel 3 these ends, be fixed with stretcher 2, outer tube 72 three grooves therein that hold respectively and fix these three pairs of sliding pairs are arranged on this stretcher 2.Two pairs of sliding pairs on both sides all are equipped with escapement or wherein any a pair of sliding pair and escapement or the three pairs of sliding pairs have been installed escapement two pairs of structures that sliding pair has been installed escapement of both sides (Fig. 3 and Fig. 4 have all only drawn) all is installed.Above-mentioned stretcher 2 general available steel plates are stamped to form, and the purpose that groove is set is to hold sliding pair on the one hand, also improve the rigidity and the intensity of stretcher on the other hand as the reinforced rib of punching press steel plate.By those skilled in the art as can be known, also some reinforced rib can be set according to the needs of rigidity and intensity, not draw among the figure, not give unnecessary details at this in the other parts of stretcher 2.
In this example, seat frame, the mount pad of drive motor 4 and the mount pad of storage battery 6 etc. of suspension drive wheel 1, installation bicycle seat 5 is a rear bearing sheet frame 200.Three short sleeves 201 that have punching press to come out on this rear bearing sheet frame 200.By those skilled in the art as can be known, on same secondary mould, stamp out this three borehole jacks, be easy to guarantee its three parallelism that the hole is mutual.The inner sleeve 71 of three pairs of sliding pairs is fixed together with welding method firmly with after three short sleeves 201 on the rear bearing sheet frame 200 cooperate.The degree of being parallel to each other of the inner sleeve 71 of three pairs of sliding pairs of so easy assurance.
The sliding pair that this three couple is parallel to each other and arranges can be (with reference to the figure 3) that middle equicrural triangle high, that both sides are low is arranged, also can be (with reference to the figure 4) that all arranges on a same plane.The benefit that equicrural triangle is arranged is to improve the bending strength and the rigidity of the beam that pipe is formed in three sliding pairs, thereby can reduce sliding pair inner and outer pipes size and saving in material; But the occupant needs single pin to cross over the middle higher outshot of stretcher up and down the time, and some is unfavorable for the occupant of legs and feet inconvenience.
Arrange in the underframe of sliding pair at this routine equicrural triangle, on its stretcher 2 concave surface of the groove on both sides up, middle concave surface is down.
Arrange that on the same plane of this example the concave surface of three grooves on its stretcher 2 all up in the underframe of sliding pair.The benefit of arranging sliding pair on the same plane is that stretcher is essentially a plane, conveniently takes.
Obviously, also should add a cover the rubber or a plastic foot mat (not drawing among the figure) that can block groove at least on these routine stretcher 2 tops.It is equally evident that, for this routine underframe the longest and the most in short-term, occupant's both feet all can be trampled on stretcher 2, at least be that its stretcher 2 parts should have enough length, just sliding pair is brought together into the most in short-term, and stretcher 2 redundance at this moment also can bounce back and intert under the cushion base plate of this routine wheelchair vehicle seats frame.Self-evident, for making compact conformation, adopt some parts (for example storage battery 6) in the wheel Wheel-chair of this routine underframe can be suspended on the bottom of corresponding cushion base plate, partly reserve interspersed space with the retraction of giving stretcher 2.
Indubitable, for the consideration of some other reason, described three pairs of sliding pairs also can also be arranged by inverted equicrural triangle.
Embodiment 2:
This example is still on summation part basis, be primarily aimed at the quantity, arrangement of sliding pair wherein and associated mechanisms relation thereof for example.In this example, sliding pair is a pair of (with reference to the figure 5) of center arrangement.In this case, the internal and external casing of this sliding pair (71,72) prevents the sleeve pipe of the circumferential limit configuration that rotates for oblong sleeve pipe or other have.That is to say that this internal and external casing can also be that ellipse, triangle etc. are non-circular, also can be to have additional in the round tube to prevent the feather key that rotates and corresponding keyway thereof.On the underframe of road wheel 3 these ends, be fixed with stretcher 2, outer tube 72 groove (concave surface of figure further groove up) therein that holds and fix this sliding pair is arranged on this stretcher 2.Described telescopic drive mechanism and escapement are installed in this a pair of sliding pair.Certainly, should add a cover the rubber or a plastic foot mat (not drawing among the figure) that can block groove at least equally on these routine stretcher 2 tops.
Embodiment 3:
This example also is on summation part basis, be primarily aimed at the quantity, arrangement of sliding pair wherein and associated mechanisms relation thereof for example.In this example, sliding pair has two couple who is arranged in parallel, and telescopic drive mechanism is installed in the centre (with reference to figure 6) of these two pairs of sliding pairs.Be fixed with stretcher 2 on the underframe of road wheel 3 these ends, outer tube 72 two grooves therein that hold respectively and fix these two pairs of sliding pairs are arranged at these stretcher 2 tops.Two pairs of sliding pairs on both sides all are equipped with escapement or wherein any a pair of sliding pair escapement (what draw among the figure is that two pairs of sliding pairs on both sides have all been installed escapement) have been installed.Identical with preceding two examples, should add a cover the rubber or a plastic foot mat (not drawing among the figure) that can block groove at least equally on these routine stretcher 2 tops.
Embodiment 4:
This example is on the basis of summation part or embodiment 1, at wherein telescopic drive mechanism for example.In this example, telescopic drive mechanism is screw mandrel-nut body (with reference to figure 7, Fig. 9).Wherein an end of screw mandrel 81 is installed in the leading portion (just hang on the same support grillage of road wheel or be fixed together on the adapter plate 300 with this support grillage) of this electric walk instead under-carriage by thrust bearing 9, and nut 82 is fixed on an end that points to its outer tube 72 within the sliding pair inner sleeve 71 that is positioned at this electric walk instead under-carriage trailing portion.Obviously, inevitable this end that fits together at screw mandrel 81 and thrust bearing 9 in the operating side of screw mandrel 81 rotations.The operating side of this screw mandrel 81 can directly connect with a M/C wheel, also can connect with a M/C wheel by gear transmission or chain-driving, can also connect with the output shaft of a motor coaxially by spline and spline housing thereof or feather key and key cover thereof, also can also pass through gear transmission or chain-driving connect with the output shaft of a motor.As instantiation, the operating side of this routine screw mandrel 81, be that this motor 10 drives that (this routine motor 10 is motors of band worm type of reduction gearing by being subjected to of connecting with the output shaft of a motor 10 coaxially of spline and spline housing thereof, said herein motor output shaft just has been converted to the output shaft of this worm type of reduction gearing certainly).
Embodiment 5:
This example is on the basis of embodiment 1 or embodiment 2, at wherein telescopic drive mechanism for example.In this example, telescopic drive mechanism also is screw mandrel-nut body (with reference to figure 3, Fig. 4, Fig. 5, Fig. 8).Wherein an end of screw mandrel 81 is installed in the rear end that is positioned at the sliding pair inner sleeve 71 on this electric walk instead under-carriage trailing portion (being the support grillage 200 of its trailing portion) by thrust bearing 9; nut 82 wherein is fixed on the end that a protection sleeve that passes this sliding pair outer tube 72 11 that is positioned at this electric walk instead under-carriage leading portion points to this sliding pair inner sleeve 71, and the other end of this protection sleeve 11 links to each other by hinge 12 with the front end of electric walk instead under-carriage.(with reference to figure 8) in this example; because this hinge 12 is a bulb and ball-head cover structure; therefore, this end of this protecting sleeve 11 also has prominent an embedding with supporting on the groove that grillage connects firmly stretcher 2 together in the corresponding groove along 400 that it can not be rotated.It is equally evident that also inevitable this end that fits together at screw mandrel 81 and thrust bearing 9 in operating side that this routine screw mandrel 81 rotates.This operating side also can drive by embodiment 4 said multiple modes, in this example, what drive that screw mandrel 81 rotates is still motor 10 (this example is the motor of band worm type of reduction gearing), and the skeleton of motor 10 be by stay bearing plate 500 with can not rotate after the inner sleeve 71 of sliding pair is connected.
Embodiment 6:
This example is on the basis of embodiment 3, at wherein telescopic drive mechanism for example.In this example, telescopic drive mechanism also is screw mandrel-nut body, and a longitudinal fluting (with reference to figure 6) that holds this screw mandrel-nut body is arranged in stretcher 2 upper middle position.Nut 82 wherein is fixed in this groove, and an end of screw mandrel 81 is installed in the latter half (promptly on the support grillage 200 of its trailing portion) of this electric walk instead under-carriage by thrust bearing 9.This end that the operating side that screw mandrel 81 rotates fits together at screw mandrel 81 and thrust bearing 9.In this example, what drive that flexible screw mandrel 81 rotates is motor 10 (this example also is the motor of band worm type of reduction gearing), and the skeleton of motor 10 be by stay bearing plate 500 with can not rotate after the inner sleeve 71 of sliding pair is connected.
From embodiment 4,5,6, those skilled in the art can clearly be seen that, screw mandrel 81 is installed this end of motor 10 (also promptly by its is installed), can be according to electric cycle entire arrangement or other needs, and position is at the latter half or the first half of underframe.Its more detailed structure is known to those skilled in the art, needn't give unnecessary details at this.
It will be apparent to those skilled in that in screw mandrel-nut body, the rotation of screw mandrel 81 can be easy to become the translation of nut, rotate, that is to say that screw mandrel-nut body has auto-lock function but the translation of nut on the contrary can not promote screw mandrel; Simultaneously, the worm gear in the motor that has worm type of reduction gearing wherein can not promote the worm screw rotation.That is to say that in case motor 10 stops operating, the inner and outer pipes relative position of sliding pair is just fixing.Even because electric cycle causes small loosening very little the moving that finally causes the inner and outer pipes relative position of sliding pair in the vibration of travelling, travelling and handling and do not have big influence electric cycle of the present invention.If will avoid this situation fully, also can magnet stopper be installed on motor output shaft and realize that this can realize for those skilled in the art fully.
Embodiment 7:
This example is on the basis of one of summation part or above-mentioned each example, at escapement wherein for example.(with reference to Figure 10) in this example, escapement are anticreep latch 13.This anticreep latch 13 has the inner sleeve 71 of one section laterally inserted sliding pair to point to bolt rod 131 and the fork 132 greater than this pin hole in the pin hole in the termination portion of its outer tube 72 1 ends, on the body of rod near the inner tubal wall place of this inner sleeve 71 of this bolt rod 131 near its fork 132 1 sides a sleeve spring 134 is installed and bumps pearl 133 assemblies.The outer tube 72 of cooresponding sliding pair is to allow its inner sleeve 71 connect the short tube that passes, and the length of so-called short tube is when this underframe is in the maximum elongation state, the length that the inner side end of this outer tube 72 and this fork 132 are conflicted.
Pull up this anticreep latch 13 for convenience,, on its fork 132, can set up one and lift ring 14 so that underframe of the present invention is split.When assembling underframe of the present invention, allow above-mentioned inner sleeve 71 pass cooresponding outer tube 72 earlier, after treating that pin hole in the inner sleeve 71 termination portions exposes and the space of fork 132 is arranged, insert this anticreep latch 13 again, after spring 134 bumped bumping pearl 133 and be ejected again in pearl 133 assemblies, it was good to insert with regard to anticreep latch 13.Obviously, operation for convenience, safe and reliable, simplified design again simultaneously, except that being provided with in the corresponding position on the underframe of inner sleeve 71 front ends the limit switch 15 of minimum rounding state, can utilizing fork 132 and the limit switch 16 that maximum is drawn back state is set at the inner end surface of outer tube 72 and the corresponding position of this fork 132.The effect of limit switch is when detecting sliding pair and being in minimum rounding state or maximum and drawing back state, and motor 10 stops operating.
By all above disclosures, those skilled in the art can reproduce the present invention fully well.Need benly be, the sliding pair in embodiment 2 adopts the non-circular pipe fitting, and the outer tube 72 of sliding pair and inner sleeve 71 all can be selected non-circular pipe fitting for use among the present invention.No matter be pipe or square tube, adopt any technological measure all can directly apply among the present invention to this class sliding pair sleeve structure in the prior art.It will be apparent to those skilled in that telescopic drive mechanism used in this invention and escapement are not limited to screw mandrel-nut body and anticreep resilient pin among the embodiment.Just comparatively speaking, adopt screw mandrel-nut body and anticreep resilient pin particularly, than the straight-line motion mechanism that adopts other and more reasonable, more economical, the more convenient operation of combination of escapement---particularly can allow the user as required voluntarily after the function of dismounting having added.
It is to be noted in addition, convenient in order to guarantee smooth Assembly ﹠Disassembly, the degree of depth that has screw mandrel 81 nuts 82 sliding pair internal and external casing (71,72) within it to cooperate should have difference with the degree of depth that does not have screw mandrel 81 nuts 82 sliding pair internal and external casing (71,72) within it to cooperate; The degree of depth that screw mandrel 81 wherein cooperates with its nut 82 also should have difference with the degree of depth that does not have screw mandrel 81 nuts 82 sliding pair internal and external casing (71,72) within it to cooperate.For example, in embodiment 5 (with reference to Figure 11, running through two vertical dotted lines that divide the upper and lower half among the figure is to compare line of reference), the degree of depth that sliding pair internal and external casing (71,72) (the first half of Figure 11) cooperation within it of screw mandrel 81 nuts 82 is arranged is just than there not being the darker of screw mandrel 81 nuts 82 sliding pair internal and external casing (71,72) (the latter half of Figure 11) within it; And the degree of depth that screw mandrel 81 cooperates with its nut 82 is again than there not being the more shallow of screw mandrel 81 nuts 82 sliding pair internal and external casing (71,72) within it.Like this, in assembling during underframe of the present invention, just can be earlier cooperating the darkest sliding pair insertion a bit (to be no more than the depth difference degree of being with the intermediate depth sliding pair), allow it play the role of positioning and as the temporary support of follow-up insertion member; After treating follow-up insertion member alignment, continue to insert; After treating screw mandrel 81 and its nut 82 contacting, rotary screw rod 81 is to continue insertion.At last, embodiment 7 described anticreep latches 13 are installed again.Simultaneously, need point out also that overcoat and screw mandrel-nut all have certain chamfering in relative end when inserting mutually in the sliding pair,, reach the purpose easily when assembling again after electric cycle dismantled so that insert smoothly mutually.
Claims (10)
1, a kind of underframe of electric cycle, one end of this underframe is supported on two drive wheels (1), the other end of this underframe is supported on one or two road wheel (3), it is characterized in that, two parts before and after described underframe is divided in the vertical are by a pair of sliding pair arranged in the vertical between two parts or many sliding pair that is parallel to each other is linked together; Telescopic drive mechanism and the escapement when this underframe is in the maximum elongation state that two parts of driving this underframe draw back in the vertical or close up are installed between two parts of described underframe.
2, the underframe of electric cycle according to claim 1 is characterized in that, described sliding pair has three couple who is arranged in parallel, in a pair of sliding pair in the middle of described telescopic drive mechanism is installed in; On the underframe of this end of road wheel (3), be fixed with stretcher (2), outer tube (72) three grooves therein that hold respectively and fix these three pairs of sliding pairs are arranged on this stretcher (2); Described escapement all is installed two pairs of sliding pairs on both sides or wherein any a pair of sliding pair has been installed described escapement or three pairs of sliding pairs all are equipped with described escapement.
3, the underframe of electric cycle according to claim 1 is characterized in that, described sliding pair is a pair of of center arrangement, and the internal and external casing of this sliding pair (71,72) prevents the sleeve pipe of the circumferential limit configuration that rotates for oblong sleeve pipe or other have; On the underframe of this end of road wheel (3), be fixed with stretcher (2), outer tube (a 72) groove therein that holds and fix this sliding pair is arranged on this stretcher (2); Described telescopic drive mechanism and described escapement are installed in this a pair of sliding pair.
4, the underframe of electric cycle according to claim 1 is characterized in that, described sliding pair has two couple who is arranged in parallel, and described telescopic drive mechanism is installed in the centre of these two pairs of sliding pairs; Be fixed with stretcher (2) on the underframe of this end of road wheel (3), outer tube (72) two grooves therein that hold respectively and fix these two pairs of sliding pairs are arranged at this stretcher (2) top; Described escapement all is installed two pairs of sliding pairs on both sides or wherein any a pair of sliding pair has been installed described escapement.
5, the underframe of electric cycle according to claim 1 and 2 is characterized in that, described telescopic drive mechanism is screw mandrel-nut body; Wherein an end of screw mandrel (81) is installed in the leading portion of this electric walk instead under-carriage by thrust bearing (9), and nut (82) is fixed on an end that points to its outer tube (72) within the sliding pair inner sleeve (71) that is positioned at this electric walk instead under-carriage trailing portion.
According to the underframe of claim 2 or 3 described electric cycles, it is characterized in that 6, described telescopic drive mechanism is screw mandrel-nut body; Wherein an end of screw mandrel (81) is installed in the rear end that is positioned at the sliding pair inner sleeve (71) on this electric walk instead under-carriage trailing portion by thrust bearing (9); nut wherein (82) is fixed on the end that a protection sleeve (11) that passes this sliding pair outer tube (72) that is positioned at this electric walk instead under-carriage leading portion points to this sliding pair inner sleeve (71), and the other end of this protection sleeve (11) links to each other by hinge (12) with the front end of electric walk instead under-carriage.
7, the underframe of electric cycle according to claim 4 is characterized in that, described telescopic drive mechanism is screw mandrel-nut body; A longitudinal fluting that holds this screw mandrel-nut body is arranged in described stretcher (2) upper middle position; Nut wherein (82) is fixed in this groove, and wherein an end of screw mandrel (81) is installed in the latter half of this electric walk instead under-carriage by thrust bearing (9).
8, according to claim 1,2,3, the underframe of 4 or 7 described electric cycles, it is characterized in that, described escapement is anticreep latch (13), this anticreep latch (13) has the inner sleeve (71) of one section laterally inserted described sliding pair to point to bolt rod (131) in the pin hole in the termination portion of its outer tube (72) one ends, with a fork (132), on the body of rod near the inner tubal wall place of this inner sleeve (71) of this bolt rod (131), a sleeve spring (134) is installed and bumps pearl (133) assembly near its fork (132) one sides greater than this pin hole; The outer tube of described sliding pair (72) is to allow its inner sleeve (71) connect the short tube that passes, and when this underframe was in the maximum elongation state, inner side end of this outer tube (72) and described fork (132) were conflicted.
9, the underframe of electric cycle according to claim 5, it is characterized in that, described escapement is anticreep latch (13), this anticreep latch (13) has the inner sleeve (71) of one section laterally inserted described sliding pair to point to a bolt rod (131) and a fork greater than this pin hole (132) in the pin hole in the termination portion of its outer tube (72) one ends, on the body of rod near the inner tubal wall place of this inner sleeve (71) of this bolt rod (131) near its fork (132) one sides a sleeve spring (134) is installed and bumps pearl (133) assembly; The outer tube of described sliding pair (72) is to allow its inner sleeve (71) connect the short tube that passes, and when this underframe was in the maximum elongation state, inner side end of this outer tube (72) and described fork (132) were conflicted.
10, the underframe of electric cycle according to claim 6, it is characterized in that, described escapement is anticreep latch (13), this anticreep latch (13) has the inner sleeve (71) of one section laterally inserted described sliding pair to point to a bolt rod (131) and a fork greater than this pin hole (132) in the pin hole in the termination portion of its outer tube (72) one ends, on the body of rod near the inner tubal wall place of this inner sleeve (71) of this bolt rod (131) near its fork (132) one sides a sleeve spring (134) is installed and bumps pearl (133) assembly; The outer tube of described sliding pair (72) is to allow its inner sleeve (71) connect the short tube that passes, and when this underframe was in the maximum elongation state, inner side end of this outer tube (72) and described fork (132) were conflicted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610095186 CN1944155A (en) | 2006-10-09 | 2006-10-09 | Electric vehicle chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610095186 CN1944155A (en) | 2006-10-09 | 2006-10-09 | Electric vehicle chassis |
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| Publication Number | Publication Date |
|---|---|
| CN1944155A true CN1944155A (en) | 2007-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610095186 Pending CN1944155A (en) | 2006-10-09 | 2006-10-09 | Electric vehicle chassis |
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| CN (1) | CN1944155A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380872B (en) * | 2008-10-10 | 2010-06-02 | 重庆大学 | Steerable wheel assembly with normally open type ground switch and use thereof in electric bicycle |
| CN103466026A (en) * | 2013-09-16 | 2013-12-25 | 无锡商业职业技术学院 | Portable electric bicycle |
| CN103569275A (en) * | 2012-07-20 | 2014-02-12 | 李岳道 | Pedal and foot stool linkage structure of electric telescopic scooter |
| CN104691685A (en) * | 2015-02-11 | 2015-06-10 | 江门市朝扬精密制造有限公司 | Scooter capable of being stretched and adjusted |
| CN105083442A (en) * | 2014-05-08 | 2015-11-25 | 胡敏渝 | Two-wheeled footrest electric vehicle with retractable body and electric motorcycle |
| CN107049630A (en) * | 2017-06-07 | 2017-08-18 | 孙志仁 | A kind of new disabled person's energy-conservation scooter |
| CN108045438A (en) * | 2018-01-10 | 2018-05-18 | 河北工业大学 | One kind is scalable to move up formula miniature electric automobile |
| CN108186215A (en) * | 2018-02-11 | 2018-06-22 | 宁波市镇海丹发机械科技有限公司 | Multi-functional load-carrying wheel-chair |
| CN108309592A (en) * | 2018-02-11 | 2018-07-24 | 宁波市镇海丹发机械科技有限公司 | Electric wheel-chair control device |
| CN109044652A (en) * | 2018-09-30 | 2018-12-21 | 孔庆莹 | A kind of automatic control helps and just nurses wheeled litter |
| CN112826675A (en) * | 2021-01-04 | 2021-05-25 | 衢州职业技术学院 | Obstacle-crossing electric wheelchair |
| CN113576332A (en) * | 2021-08-04 | 2021-11-02 | 上海高仙自动化科技发展有限公司 | Cleaning robot |
| CN113603030A (en) * | 2021-08-06 | 2021-11-05 | 河南华鹰机械设备有限公司 | Intelligent aerial working platform with safety protection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380872B (en) * | 2008-10-10 | 2010-06-02 | 重庆大学 | Steerable wheel assembly with normally open type ground switch and use thereof in electric bicycle |
| CN103569275A (en) * | 2012-07-20 | 2014-02-12 | 李岳道 | Pedal and foot stool linkage structure of electric telescopic scooter |
| CN103466026A (en) * | 2013-09-16 | 2013-12-25 | 无锡商业职业技术学院 | Portable electric bicycle |
| CN105083442A (en) * | 2014-05-08 | 2015-11-25 | 胡敏渝 | Two-wheeled footrest electric vehicle with retractable body and electric motorcycle |
| CN104691685A (en) * | 2015-02-11 | 2015-06-10 | 江门市朝扬精密制造有限公司 | Scooter capable of being stretched and adjusted |
| CN107049630A (en) * | 2017-06-07 | 2017-08-18 | 孙志仁 | A kind of new disabled person's energy-conservation scooter |
| CN108045438A (en) * | 2018-01-10 | 2018-05-18 | 河北工业大学 | One kind is scalable to move up formula miniature electric automobile |
| CN108186215A (en) * | 2018-02-11 | 2018-06-22 | 宁波市镇海丹发机械科技有限公司 | Multi-functional load-carrying wheel-chair |
| CN108309592A (en) * | 2018-02-11 | 2018-07-24 | 宁波市镇海丹发机械科技有限公司 | Electric wheel-chair control device |
| CN109044652A (en) * | 2018-09-30 | 2018-12-21 | 孔庆莹 | A kind of automatic control helps and just nurses wheeled litter |
| CN112826675A (en) * | 2021-01-04 | 2021-05-25 | 衢州职业技术学院 | Obstacle-crossing electric wheelchair |
| CN113576332A (en) * | 2021-08-04 | 2021-11-02 | 上海高仙自动化科技发展有限公司 | Cleaning robot |
| CN113603030A (en) * | 2021-08-06 | 2021-11-05 | 河南华鹰机械设备有限公司 | Intelligent aerial working platform with safety protection system |
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