CN201472475U - Folding vehicle frame for a vehicle - Google Patents

Abstract

The utility model relates to a folding vehicle frame for a vehicle, which comprises a front vehicle frame (21) and a back vehicle frame (22), wherein the front vehicle frame and the back vehicle frame are relatively rotatably connected with each other by an articulated shaft (5) at one column near the length center of the vehicle, thereby leading the folding vehicle frame to be in a folding state and a normal state. The folding vehicle frame in the prior art has the defects of inconvenient transportation, large occupation, low whole strength and rigidity. Therefore providing a front flange (1) in a connection region of the front vehicle frame (21) and the back vehicle frame (22), and a back flange (2) in a connection region of the back vehicle frame (22), the front vehicle frame (21) and the back vehicle frame (22) are mutually connected in a anti-torsion mode in the normal state by the front flange and the back flange, thus obtaining a vehicle having high whole strength and rigidity, small occupation area after being folded, and convenient parking. The utility model can be used in a vehicle, especially in a family car, also can be used in an improvement of the existing vehicle.

Description

The Foldable frame that is used for automobile

Technical field

The utility model relates to automotive field, relates in particular to the Foldable frame that is used for automobile.

Background technology

Along with expanding economy, the raising of people's living standard, automobile and especially car are come into family more and more, and what bring is the problem of parking space anxiety thereupon.Clan owning cars is also perplexed by parking problem when obtaining traffic convenience.Present automobile adopts the integral rigidity body frame structure for automotive basically, is mainly loading carriage and non-bearing formula vehicle frame.Vehicle frame is longer, is not easy to vehicle parking and keeping, the Parking Fee height.And the vehicle frame global formation can not folded deformation, vehicle integral transportation expense height.

Disclosing a kind of car chassis beam in Chinese patent application 200310107255.X is telescopic collapsible car, though this automobile can be saved certain parking space, but it adopts main beam stress, is not suitable for popular bearing-type vehicle frame at present, and vehicle frame weight increases too much.

In addition, Chinese patent application 200310111020.8 discloses a kind of foldable vehicle, and this automobile adopts the bearing pin locking after expansion, is generally the locking of four two lines, and lock shaft intensity is big, and wearing and tearing are big, the requirement on machining accuracy height.And lateral direction of car insufficient rigidity, whole tension, bending resistance, resistance to compression, torsional strength and the rigidity of vehicle are not enough greatly, and the anti-vibration of vehicle frame is stable and airtight sealing anti-acoustic capability is poor.And this vehicle is inconvenient to move freely and turn in folding back.

Summary of the invention

Therefore, the purpose of this utility model is to overcome the deficiencies in the prior art, proposes a kind of convenient transportation, takes up an area of less and bulk strength and the high automobile Foldable frame of rigidity.

Therefore, the utility model provides a kind of Foldable frame that is used for automobile, comprise front vehicle frame and back vehicle frame, front vehicle frame and back vehicle frame are coupled to each other by jointed shaft rotatably at the post place at the close length center of automobile, thereby can make Foldable frame be in folded state and normal condition, it is characterized in that, front vehicle frame with the back attachment section that links to each other of vehicle frame in be equipped with the forward flange dish, back vehicle frame its with attachment section that front vehicle frame links to each other in be equipped with rear stub, by forward flange dish and rear stub, be coupled to each other to front vehicle frame in the normal condition and the antitorque commentaries on classics of back vehicle frame.

Advantageously, put in place according to parking of Foldable frame of the present utility model in order to be more convenient for, on in front vehicle frame and the back vehicle frame at least one at least one pair of road wheel is set, this action wheel keeps landing under folded state, the road wheel of the road wheel of front vehicle frame and/or back vehicle frame is driven in mode capable of free rotation, be used to make the vehicle frame that is in folded state to move, thereby play the effect that makes things convenient for vehicle frame to move.And, can driven road wheel can also keep vehicle after the folding state of being kept upright.Road wheel is preferably designed in mode capable of free rotation and is driven, and can make the radius of turn of vehicle reach minimum, thereby vehicle can move, turns to and stop easily.At this moment, set up command and control system or automatic parking control system on the driving wheel of can being expert at, to move more easily and parked vehicles.Here, road wheel preferably drives by on-board engine or on-vehicle battery, should be appreciated that also to adopt other suitable type of drive.

In the process that vehicle is changed between folded state and normal condition, car weight is converted to by road wheel from main wheel and bears.Put in place in order to prevent from can not directly change in switching process, the driving wheel next door of preferably so being expert at is provided with auxiliary wheel, and promptly in the folding process of vehicle frame, auxiliary wheel lands earlier than road wheel, thereby weight is bearing on the auxiliary wheel earlier, and then changes by road wheel and bear.

Advantageously, lateral stiffness and intensity in order to strengthen vehicle frame are provided with strengthening rib at the back side of forward flange dish and rear stub.In the utility model, forward and backward flange can be a part independently, also can be made into integration with front vehicle frame and back vehicle frame.In addition, in order to strengthen the resistance to shear of connection part, be provided with corresponding concaveconvex structure on forward flange dish and rear stub, this concaveconvex structure plays the double action of location and shearing resistance.In the utility model, the main effect of forward and backward flange is that connection is firm, and under normal condition, jointed shaft does not stress or do not stress substantially, and is mainly stressed by flange.Jointed shaft just plays connection, rotates and main stressed effect when vehicle frame is in folded state.Can also be provided with buckle structure on forward and backward flange, the front vehicle frame and the back vehicle frame locking that are used for being in normal condition are linked together.In order to fix forward and backward vehicle frame better and to make things convenient for vehicle frame folding, buckle structure adopts the interlock design and is provided with tripping-proof mechanism.Concaveconvex structure can be punching press or welded structure, also can be understood as knock hole that is arranged on forward flange dish and the rear stub and the locating dowel pin that cooperates with it, is used to make front vehicle frame and back vehicle frame under the normal condition to be fixedly connected.

According to an embodiment of the present utility model, front vehicle frame and back vehicle frame are coupled to each other at downside in the plane at the post place at the close length center of this automobile, thereby make this vehicle frame folding in the mode that described back vehicle frame and front vehicle frame rotate.

According to another embodiment of the present utility model, front vehicle frame and back vehicle frame are coupled to each other at upside in the plane at the post place at the close length center of described automobile, thereby described vehicle frame is folding in the mode that described back vehicle frame upwards rotates.

For preventing that vehicle from being damaged by pressure in the vehicle frame folding process, before folding, preferably guarantee all structures below the outer tangent line of road wheel and main wheel be withdrawn into outside position more than the tangent line.

In the utility model, make vehicle frame folding or expansion by apply moment of torsion to jointed shaft, applying of moment of torsion can realize by steel rope at the bottom of hydraulic actuating cylinder, worm-gear toothing or the vehicle frame.Certainly, also can expect utilizing other appropriate method that applies moment of torsion.

According to an embodiment of the present utility model, vehicle frame also comprises interlude, and this interlude can be removably mounted between front vehicle frame and the back vehicle frame by flange, can change the total length of vehicle frame thus or connect angle, thereby realize the transformation to vehicle.

According to vehicle frame of the present utility model, owing to be divided into front vehicle frame and back vehicle frame, therefore as long as the attachment section of forward and backward vehicle frame is complementary, the forward and backward vehicle frame of different structure just can be combined into different vehicles as required, can carry out standard modular production easily.And, because vehicle frame is coupled to each other by flange, therefore when the vehicle accidental damage, can modularization change the damage parts.In addition, the utility model can also be applied to the transformation of existing vehicle.

Employing can fold when parking on demand according to the vehicle of Foldable frame of the present utility model, and minimum is foldable to 1/2 or 1/3 of raw footage, can park easily and transport, but no-radius revolution after vehicle folds, the turnover parking stall is convenient.Vehicle can be with own power jack-knifing and expansion, and does not need by extra instrument and power.Assembling again after but the vehicle frame separated into two parts is processed, the size of each several part is less, can adopt more small-sized machine up, helps reducing the construction cost of manufacturing line, reduces investment outlay.

Description of drawings

Below with reference to accompanying drawing embodiment of the present utility model is described, wherein:

Fig. 1 a is the scheme drawing according to the vehicle frame of an embodiment of the present utility model that is in normal condition;

Fig. 1 b is the scheme drawing that is in the vehicle frame shown in Figure 1 of folded state;

Fig. 2 a is the scheme drawing that is in the utility model vehicle frame that is provided with auxiliary wheel of normal condition.

Fig. 2 b schematically illustrates auxiliary wheel and lands earlier in folding process;

Fig. 2 c is in the scheme drawing of folded state for the vehicle frame among Fig. 3;

Fig. 3 a is the scheme drawing of another embodiment of the utility model vehicle frame;

Fig. 3 b is the upwards folding scheme drawing of vehicle frame among Fig. 6 a;

Fig. 3 c is in the scheme drawing of folded state for the vehicle frame among Fig. 6 a;

Fig. 4 a is the scheme drawing according to another embodiment of the present utility model;

Fig. 4 b is the upwards folding scheme drawing of vehicle frame among Fig. 7 a;

Fig. 4 c is in the scheme drawing of folded state for the vehicle frame among Fig. 7 a;

Fig. 5 a schematically illustrates another embodiment according to vehicle frame of the present utility model;

Fig. 5 b is in the scheme drawing of downward folded state for the vehicle frame among Fig. 5 a;

Fig. 6 is the scheme drawing that is provided with the utility model vehicle frame of interlude;

Fig. 7 a is the schematic cross-sectional view of the utility model flange, wherein not shown jointed shaft;

Fig. 7 b is the schematic cross-sectional view according to flange of the present utility model, wherein shows jointed shaft;

Fig. 8 a is the structural representation according to integral flange dish of the present utility model;

Fig. 8 b is the structural representation according to sectional type flange of the present utility model;

Fig. 8 c is according to the structural representation that is applicable to the flange of convertible vehicle frame of the present utility model;

Fig. 9 is for applying the scheme drawing of moment of torsion to jointed shaft.

The Reference numeral complete list

1-forward flange dish; The 2-rear stub; The 3-road wheel; The 3a-auxiliary wheel; Concaveconvex structure on the 4-flange; The 5-jointed shaft; The 6-strengthening rib; The 7-buckle structure; The 8-inner seal ring; The 9-exterior seal ring; The 10-interlude; 11-pole; The 21-front vehicle frame; Vehicle frame behind the 22-; The 23-pillar.

The specific embodiment

Fig. 1 a and Fig. 1 b represent to adopt the scheme drawing of automobile of an embodiment of the utility model vehicle frame, automobile becomes the four-door sedan form as shown in the figure, its vehicle frame comprises front vehicle frame 21 and back vehicle frame 22, as shown in the figure, front vehicle frame and back vehicle frame are at the post place at the close length center of automobile, for example, in its plane, be coupled to each other by jointed shaft 5 at downside at B post place.By jointed shaft 5 is applied moment of torsion, can make vehicle frame folding and expansion.Because vehicle frame is made of two parts, so the strength and stiffness of connection place reduce.In order to overcome this shortcoming, front vehicle frame 21 and back vehicle frame 22 are in attachment section separately, near plane, B post place, be equipped with the forward flange dish 1 and the rear stub 2 that for example have strengthening rib 6 respectively, be used for after vehicle frame launches, front vehicle frame 21 and back vehicle frame 22 being fixedly connected.Here, the forward and backward relatively vehicle frame of above-mentioned flange can be independent part, also can make each flange with forward and backward vehicle frame with being integral.So,, strengthened the integral rigidity of lateral strength and vehicle frame, helped vehicle frame stability by adopting this reinforcing flange dish.

As shown in Figure 1a, respectively be provided with a pair of road wheel 3 at the front end of front vehicle frame 21 and the rear end of back vehicle frame 22, described road wheel is provided with like this, and promptly under folded state, road wheel keeps landing, for example referring to Fig. 1 b.The number of road wheel 3 and position can be selected by the particular case of vehicle.Here, road wheel 3 constitutes capable of free rotationly.

In the present embodiment, the road wheel 3 of the road wheel 3 of front vehicle frame 21 front ends or vehicle frame 22 rear ends, back is can be driven, can expect that also these two pairs of road wheels all can be driven, and for example can provide power to road wheel by on-board engine or on-vehicle battery.The motor that drives road wheel can be arranged in the road wheel.In addition, overall appearance and minimizing windage for vehicle can also be provided with road wheel outlet cover plate, cover road wheel when vehicle frame is in normal condition automatically.

Shown in Fig. 7 a and Fig. 7 b, in above-mentioned vehicle frame, forward flange dish 1 and rear stub 2 are provided with best well-distributed concaveconvex structure 4, and are provided with buckle structure 7, and they are used to make front vehicle frame 21 under the normal condition and back vehicle frame 22 to interfix to connect or locking connects.It is especially favourable that concaveconvex structure 4 is set, and they make the flange multiple spot stressed, thereby stressed more even, and it is littler to wear and tear.This multiple spot is stressed to help vehicle frame cooperative transformation and sealing herein with the face force way, has improved the sealing anti-acoustic capability.Can expect that the locating dowel pin that knock hole is set and cooperates with it is as above-mentioned concaveconvex structure 4 on flange.According to the utility model, buckle structure 7 preferably adopts the interlock design and is provided with tripping-proof mechanism, so more helps the locking and unlocking between the flange.

According to the utility model, sealing window before and after the union end of forward and backward vehicle frame preferably is provided with, before folded vehicle, the forward and backward sealing window of leaving behind earlier, separation is also sealed forward and backward cabin, and all structures below guaranteeing the outer tangent line of road wheel and main wheel are retracted to outside this behind position more than tangent line, remove the buckle structure of interlock, throw off whole buckle structures 7.Then, apply moment of torsion for jointed shaft 5 by vehicle-mounted power, forward and backward vehicle frame is relatively rotated, and the pars intermedia of vehicle upwards rises, after turning to certain angle, car weight is transferred to road wheel by forward and backward main wheel, and vehicle frame continues folding, and is close substantially with the rear end of back vehicle frame 22 until the front end of front vehicle frame 21.As can be seen, when vehicle frame was in folded state, front vehicle frame 21 and back vehicle frame 22 were in vertical position substantially, and have only road wheel 3 to land and support whole vehicle from Fig. 1 b.

Fig. 2 a to Fig. 2 c illustrates another embodiment of vehicle frame, and in the present embodiment, the rear end of the front end of front vehicle frame 21 and back vehicle frame 22 also is respectively equipped with the road wheel 3 of a pair of minor diameter.Because the structure of vehicle frame front and back end is slightly different, in the process of folding stand, touches ground in order to prevent vehicle, preferably be provided with auxiliary wheel 3a on the next door of the road wheel 3 of forward and backward vehicle frame.By applying moment of torsion so that vehicle frame goes to from normal condition the process of folded state for jointed shaft 5, car weight is bearing in earlier on the auxiliary wheel 3a, and then goes to road wheel.Should be appreciated that also and road wheel and the vehicle frame partial design more than the outer tangent line of main wheel can be become collision protection structure that for example scalable, dismounting or folding form make car weight directly go to road wheel from main wheel.In addition, it will also be appreciated that road wheel is designed to and can stretches in vertical plane, automatic compensation position when folding and expansion, impaired to guarantee when vehicle frame is launching to change between (normally) state and the folded state, can not make vehicle bump ground.

Fig. 3 a to Fig. 3 c represents the another embodiment of the utility model vehicle frame, in the present embodiment, front vehicle frame 21 and back vehicle frame 22 are in upside at the post at close the length center of automobile and are coupled to each other rotationally by jointed shaft 5, thus the back vehicle frame relatively front vehicle frame turn to above the front vehicle frame.Be provided with a pair of telescopic road wheel 3 in the rear end of front vehicle frame 21 bottoms here.Before folding stand, elder generation locks the suspension of main wheel and turns to, and stretches out road wheel 3 to ground, and described road wheel 3 and preceding main wheel are all landed, and car weight is transformed into road wheel and preceding main wheel thereupon.Then jointed shaft 5 is applied moment of torsion, so that back vehicle frame 22 anticlockwise motions, front vehicle frame 21 is folding relatively, is in parallel position, at this moment road wheel 3 and the whole vehicle of preceding main wheel support substantially until front vehicle frame 21 and back vehicle frame 22.

Fig. 4 a to Fig. 4 c represents another embodiment of the utility model vehicle frame, and here, vehicle is spacious paulin type car, and its front vehicle frame 21 and back vehicle frame 22 are in upside at the post at the close length center of automobile and are coupled to each other rotationally by jointed shaft 5.Here, the embodiment shown in the configuration of road wheel 3 and Fig. 3 a to Fig. 3 c is basic identical,, a pair of telescopic road wheel 3 also only is set here in the rear end of front vehicle frame.When vehicle frame was folded, hood was retracted earlier, and then, forward and backward vehicle frame folds.Shown in Fig. 4 b and Fig. 4 c,, also be provided with the pillar 23 of supporting and locking back vehicle frame 22 at the front end of front vehicle frame 21 for the back vehicle frame 22 after stable the folding.

In the embodiment shown in Fig. 5 a and Fig. 5 b, vehicle is spacious paulin type car, at the front end of its front vehicle frame 21 and the rear end of back vehicle frame 22 a pair of road wheel 3 is set respectively, and the next door of the driving wheel 3 of being expert at also is provided with auxiliary wheel 3a respectively.Front vehicle frame 21 and back vehicle frame 22 are coupled to each other by jointed shaft 5 at downside rotatably on the post plane of living at the close length center of automobile.Folding mode is identical with embodiment shown in Fig. 1 a and Fig. 1 b.

Fig. 6 shows the vehicle frame that has increased modular interlude 10, interlude 10 with the foregoing description in forward and backward vehicle frame be coupled to each other identical mode and link with front vehicle frame 21 and back vehicle frame 22 respectively, that is, carry out removable connection and fixing by jointed shaft 5 and flange.This being configured with is beneficial to the total length that changes vehicle frame or connects angle, thereby realizes the transformation to vehicle.

In above-mentioned any one embodiment, forward and backward flange can constitute that (referring to Fig. 8 a), perhaps as required, it can constitute (referring to Fig. 8 b) according to the split mode according to integral way.When vehicle is that flange also can correspondingly be configured to semi-open-type (referring to Fig. 8 c) when opening paulin type car.As can be seen from the figure, not only be provided with concaveconvex structure that is used to locate and a plurality of buckle structures that are used for fixing on the flange, also be provided with inner seal ring 8 and exterior seal ring 9, strengthened the sealing property of connection place, better waterproof and noise reduction.

In addition, stable for the action that keeps taking action behind the vehicle frame folding, road wheel 3 preferred arrangements are in the vehicle frame outside.In addition, in the above-described embodiments, all should lock the suspension of main wheel before folding and turn to.

Come folding stand in order to apply moment of torsion for jointed shaft 5, can adopt several different methods, for example can adopt at the bottom of hydraulic actuating cylinder, worm-gear toothing, the vehicle frame means such as steel rope.Fig. 9 schematically illustrates with steel rope at the bottom of the car and applies an embodiment of moment of torsion for the downside jointed shaft 5 at the post place that is positioned at close length center, wherein an end of steel rope 12 is fixed on the rear end of back vehicle frame 22, the other end with link to each other by the electric motor driven reel 13 that is arranged on front vehicle frame 21 front ends, and but steel rope 12 roughly is being connected with folding and unfolding pole 11 near middle part, in normal condition, pole 11 is packed up and with concordant at the bottom of the car, and at the bottom of the steel rope 12 tension income cars.When folded vehicle, put down pole 11, by direct motor drive reel 13 rolling steel ropes, apply moment of torsion for jointed shaft 5, thereby realize vehicle frame folding.

In addition, in the vehicle that adopts according to above-mentioned vehicle frame of the present utility model, the oil of vehicle frame gap, electricity, control pipeline homogeneous phase change flexible connection with answering into or take to rotate and handle, when folding and expansion, can not influence operation control and transmission, and driving engine, water tank, battery to vehicle are provided with the anti-safety device of toppling over, as dynamic turnover face, need set up devices such as universal-joint.

In the utility model vehicle frame, comprise front vehicle frame 21 and 22 two parts of back vehicle frame no matter be, still comprise front vehicle frame 21, back vehicle frame 22 and 10 3 parts of interlude, as long as attachment section is complementary, formation capable of being combined different vehicle in different front and rear parts is conveniently carried out normalisation, modularization production.Simultaneously, because vehicle frame is linked together by the reinforcing flange dish, as long as two flanges are complementary, during the vehicle accidental damage, but modularization is changed the damage parts, thereby has reduced work capacity and expense.In addition, the utility model both had been applicable to the bearing-type vehicle frame, also was applicable to non-bearing formula vehicle frame.And the utility model can also be applied to the transformation of existing vehicle.

Therefore; although more than combining the given specific embodiment of specification sheets describes in detail the utility model; but the utility model should not be limited to above-mentioned specific embodiment or given characteristics combination mode, but should be limited protection domain of the present utility model by follow-up claims.Under the prerequisite that does not exceed the utility model spirit, follow-up claims should be contained those and fall into enforcement structure and the arrangement form that is equal to category, and those of ordinary skills also can finish corresponding modification and improvement according to instruction of the present utility model.

Claims (10)

1. Foldable frame that is used for automobile, comprise front vehicle frame (21) and back vehicle frame (22), described front vehicle frame and described back vehicle frame are coupled to each other by jointed shaft (5) rotatably at the post place at the close length center of automobile, thereby can make described Foldable frame be in folded state and normal condition, it is characterized in that, described front vehicle frame (21) with attachment section that described back vehicle frame (22) links to each other in be equipped with forward flange dish (1), described back vehicle frame (22) its with attachment section that described front vehicle frame links to each other in be equipped with rear stub (2), by described forward flange dish and described rear stub, described front vehicle frame (21) in the normal condition and the mutual antitorque connection of described back vehicle frame (22).

2. vehicle frame according to claim 1, it is characterized in that, be provided with at least one pair of road wheel (3) in described front vehicle frame (21) and described back vehicle frame (22) at least one, described road wheel (3) keeps landing under the vehicle frame folding state, the road wheel of the road wheel of described front vehicle frame (21) and/or described back vehicle frame (22) is driven by on-board engine or on-vehicle battery in mode capable of free rotation, is used to make the described vehicle frame that is in folded state to move.

3. vehicle frame according to claim 2 is characterized in that, at the back side of described forward flange dish (1) and the back side of described rear stub (2), is respectively equipped with strengthening rib (6).

4. vehicle frame according to claim 3, it is characterized in that, described forward flange dish (1) go up and described rear stub (2) on be respectively equipped with corresponding concaveconvex structure (4) and buckle structure (7), be used to make the connection that interfixes of the described front vehicle frame that is in normal condition and described back vehicle frame.

5. vehicle frame according to claim 4 is characterized in that, described buckle structure (7) adopts the interlock design and is provided with tripping-proof mechanism.

6. according to each described vehicle frame in the claim 1 to 5, it is characterized in that, described front vehicle frame (21) and described back vehicle frame (22) are coupled to each other at downside in the plane at the post place at the close length center of described automobile, thereby described vehicle frame is folding in the mode that described back vehicle frame and described front vehicle frame rotate.

7. according to each described vehicle frame in the claim 1 to 5, it is characterized in that, on described front vehicle frame and described back vehicle frame, so auxiliary wheel (3a) is set respectively on road wheel (3) next door separately, in the folding process of described vehicle frame, described auxiliary wheel (3a) lands earlier than cooresponding described road wheel (3).

8. according to each described vehicle frame in the claim 1 to 5, it is characterized in that described vehicle frame also comprises interlude (10), described interlude (10) can be removably mounted between described front vehicle frame (21) and the described back vehicle frame (22) by flange.

9. according to each described vehicle frame in the claim 1 to 5, it is characterized in that, described jointed shaft (5) applies moment of torsion by steel rope at the bottom of the vehicle frame (12), one end of this steel rope (12) is fixed to the rear end of this back vehicle frame (22), the other end links to each other with the reel (12) that is arranged on this front vehicle frame (21) front end, and this steel rope (12) but the part near middle be connected with folding and unfolding pole (11).

10. according to each described vehicle frame in the claim 1 to 5, it is characterized in that, described front vehicle frame (21) and described back vehicle frame (22) are coupled to each other at upside in the plane at the post place at the close length center of described automobile, thereby described vehicle frame is folding in the mode that described back vehicle frame upwards rotates.

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