CN101244716B

CN101244716B - Anti-stealing device for vehicle and steering wheel having the anti-stealing device for vehicle

Info

Publication number: CN101244716B
Application number: CN200710008645XA
Authority: CN
Inventors: 冯建中
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-15
Filing date: 2007-02-15
Publication date: 2010-09-15
Anticipated expiration: 2027-02-15
Also published as: CN101244716A

Abstract

The invention discloses a device of guarding against theft for vehicle, in particular to an antitheft device, which can realize the segmentation of steering wheel column, as well as opposites to the clutch. A clutch element is arranged at the opposite end of a first and a second drive shaft on the steering wheel column of the antitheft device, the antitheft device is also provided with a drive element, which can drive the clutch element to make the first and the second drive shaft separate, free running oppositely, or embedded synchronous joining move. By adopting the design of the invention, when the first drive shaft and the second drive shaft are separated by the clutch element of the steering wheel column, because that the first drive shaft connected with the rotating tray, presents free running, opposite to the second drive shaft connected with the universal joint, so even if the vehicle is started, the ganef can not control the running direction of the vehicle, thus realizing the theft protection.

Description

The bearing circle of anti-theft device for vehicle and this anti-theft device for vehicle of tool

Technical field

The present invention is subordinate to a kind of theft-proof technical field, refers to the bearing circle of a kind of anti-theft device for vehicle and this anti-theft device for vehicle of tool especially.

Background technology

Car thief is in recent years stolen car no longer just for the simple stolen car of selling, have or even vehicle is disassembled into part sells, extort to the car owner again or directly, so the loss by theft rate of vehicle is high always.And suffer that for fear of vehicle the thieves or robbers who act under cover of night steal, the industry exploitation has various burglary-resisting installations and device, as early stage crutch lock, protection defending lock or handle lock, and even uses engine coded lock, wafer lock or the antitheft position fixing system of satellite GPS or the like comparatively widely in the recent period.Be subjected to the enhancement of thieves or robbers who act under cover of night's unlocking technique and the exploitation of unlocking tool, aforementioned these burglary-resisting installations also are cracked gradually with device, handle lock and crutch lock with the fixed-direction dish are example, the thieves or robbers who act under cover of night are except unblanking, it also can directly amputate the capstan of bearing circle, clamp the end of bearing circle column again with instrument, its same vehicle can being stolen; Though have preferable protective action as for engine coded lock, wafer lock or the antitheft position fixing system of satellite, it costs an arm and a leg, as long as and crack its ISN, still have the problem that vehicle goes adrift, therefore aforementioned burglary-resisting installation and anti-theft system are gradually ineffective.

There is the dealer to develop again in addition just like TaiWan, China patent announcement No. 159411 it " interchangeable handle lock idling structure " and No. 345141 preceding case of it patents such as " bearing circle idle running theft-prevention structures ", case mainly is the design that utilizes lockset and bearing circle capstan to be combined into one before the aforementioned patent, to utilize lockset to form idling conditions by sleeve in the capstan of bearing circle and column axle center, and then allow the thieves or robbers who act under cover of night can't utilize the bearing circle control vehicle, and reach theft-proof purpose, though it has preferable anti-theft effect, but because its composition structure of lockset is easily duplicated and is cracked for the thieves or robbers who act under cover of night, go smoothly easily all the better, its structure is very complicated again, the thieves or robbers who act under cover of night steal on the process destruction direction dish as the indicator control stalk, the rain brush control stalk, the setting of equipment such as sound equipment control panel and safety air bag, as long as the thieves or robbers who act under cover of night take off the capstan of whole bearing circle what is more, and with the tonger folder column of pulling, it equally can control driving, so the theft-prevention structure of case is failed actv. and is extended on the market before the aforementioned patent.

Summary of the invention

The object of the present invention is to provide the bearing circle of a kind of anti-theft device for vehicle and this anti-theft device for vehicle of tool, it can allow the segmentation of bearing circle column dally, so as to reducing the loss by theft rate of vehicle.

For achieving the above object, technical solution of the present invention is:

A kind of anti-theft device for vehicle, it includes: one first axle drive shaft, its top group is provided with a capstan; One second axle drive shaft, its bottom is provided with a Hooke's coupling, and first axle drive shaft can be concatenated into a bearing circle column relatively with second axle drive shaft; One clutch unit, it is located at first and second axle drive shaft serial connection place relatively, this clutch unit has one can upper and lower mobile clutch tube, and wherein the clutch tube makes first and second axle drive shaft produce inlay card by its upper and lower mobile effect to rotate synchronously or separate the relation of idle running relatively; One driver element, it drives upper and lower the moving of clutch tube of aforementioned clutch unit.

The clutch tube of described clutch unit drives first axle drive shaft and produces separation and marriage relation relative to upper and lower the moving of second axle drive shaft.

The clutch tube of described clutch unit drives second axle drive shaft and produces combination and separation relation relative to upper and lower the moving of second axle drive shaft.

The clutch tube of described clutch unit drive first and second axle drive shaft synchronously near or away from produce in conjunction with and the relation of separating.

Described clutch unit is installed with a bulge loop on first axle drive shaft, and the first axle drive shaft bottom is formed with a polygonal embedding part, second axle drive shaft then is formed with a conjugate foramen that supplies embedding part to plug, the clutch tube of clutch unit utilizes aforementioned bulge loop to move and rotation relatively relative to drive first axle drive shaft again, clutch tube outer rim is formed with axially extended chute together again, and clutch unit is provided with one outward and is fixedly arranged on the housing of vehicular meter seat, and is installed with a guide rod for inlay card clutch tube in the housing.

Described clutch unit has a key piece that protrudes in the embedding part of first axle drive shaft, and key piece root edge is formed with leads the arc edge, and second axle drive shaft is formed with the keyway of a corresponding keys piece in the conjugate foramen periphery, and the second axle drive shaft top end face is formed with an oblique guide lug, keyway is positioned at this oblique guide lug nadir, in order to when key piece and keyway fully during contraposition, can produce guide function.

The clutch tube inner edge of described clutch unit is formed with twice first and second annular groove radially, with button first and second cramp of having pulled respectively, in order to the pull bulge loop of first axle drive shaft of folder, make first axle drive shaft relatively the clutch tube rotate and synchronization lifting.

The first axle drive shaft bottom of described clutch unit is formed with an oblique conical section, and first axle drive shaft has protruded out a lead segment in the oblique conical section bottom, and second axle drive shaft is formed with the guide hole of a corresponding lead segment in the conjugate foramen bottom, does not separate no matter first and second axle drive shaft joint or idle running all can be guaranteed to engage.

The housing inner face of described clutch unit is upper and lower to be arranged with an inductive switch, and aforementioned clutch tube root edge is formed with flange one, for the upper and lower mobile upper and lower limit position of control clutch tube.

Described driver element is provided with a permanent seat in first axle drive shaft, and form in the permanent seat motor is set, this motor has an output wheel that passes permanent seat, first axle drive shaft is pivoted with a swivel nut in the permanent seat below again, this swivel nut inner edge is formed with the externally threaded negative thread of corresponding aforementioned clutch tube, moreover swivel nut top periphery is formed with the drive wheel of a corresponding aforementioned output wheel, allows motor drive the swivel nut rotation, to drive the upper and lower slippage of clutch tube.

Described driver element is for driving tooth bar, connecting rod or the telescoping cylinder of the upper and lower displacement of clutch unit clutch tube.

Described clutch unit is formed with the pivot section and the pivot hole that can articulate relatively respectively in first axle drive shaft and the opposed end of second axle drive shaft, and clutch unit also is formed with a polygonal embedding part in the contiguous pivot section of first axle drive shaft place, moreover be formed with the embedding part of corresponding aforementioned first an axle drive shaft embedding part in outer peripheral edges place, the end of second axle drive shaft, clutch unit has one and can be subjected to upper and lower drive of driver element and revolvable clutch tube again, and this clutch tube inner edge is formed with the clutch part of corresponding aforementioned embedding part.

Described clutch unit is provided with the key piece in the embedding part of first axle drive shaft in outer rim, and the embedding part of second axle drive shaft also forms cooresponding key piece, and the clutch part of clutch tube forms cooresponding keyway in addition.

The clutch tube bottom surface of described clutch unit is formed with one can import keyway and in order to allow the clutch tube can embed the oblique surface of the second axle drive shaft embedding part key piece smoothly.

A kind of bearing circle of tool anti-theft device for vehicle, it includes: a column, it has one first axle drive shaft and one second axle drive shaft of relative serial connection; One clutch unit, its separation that can control aforementioned first and second axle drive shaft is relative to idle running or the synchronous action of rotating of joint; One capstan, its lock are pulled in the first axle drive shaft top of aforementioned column; One Hooke's coupling, its lock are pulled in the second axle drive shaft bottom of aforementioned column, to connect a bogie of car.

After adopting such scheme,, and can reach the purpose of vehicle anti-theft because the present invention makes the bearing circle column be segmental structure, and utilizes its particular design of clutch relatively.In addition, the present invention sees through the design that driver element is controlled clutch action indirectly, even if allow the thieves or robbers who act under cover of night destroy lockset or driver element etc., promptly cut off or take off the bearing circle capstan, still can't allow clutch unit chimeric, also with regard to the direction of uncontrollable vehicle, to delay thieves or robbers who act under cover of night's time to rupture, finally force the thieves or robbers who act under cover of night to abandon car thought steathily, to promote burglar-proof result.

Particularly, the present invention sees through representing of aforementioned techniques means, can obtain following concrete benefit and effect and promote:

1, bearing circle column of the present invention segmentation forms first and second axle drive shaft, and utilizes driver element drive clutch unit to make the chimeric relatively or idle running of first and second axle drive shaft, is used for control vehicle direction and theft-proof purpose and reach.

2, the capstan structure of the present invention and unmodified bearing circle, so it still can be used for the various operation control stalks of equipment, joystick control or safety air bag etc., and do not influence the script function of bearing circle, increase its value added.

3, the present invention is except that the proper operation driver element drives clutch unit, can't see through the destruction lockset and directly drive the bearing circle column, therefore can delay the auto theft time, and then reduce the desire of thieves or robbers who act under cover of night's auto theft, compared to existing burglary-resisting installation, has the effect that reduces loss by theft rate.

Description of drawings

Fig. 1 is an anti-joyride device outward appearance assembly scheme drawing of the present invention, is used for illustrating running condition of the present invention;

Fig. 2 is an anti-joyride device decomposing schematic representation of the present invention, and it discloses the aspect of each element;

Fig. 3 is the inner view of forming of anti-joyride device of the present invention;

Fig. 4 is anti-joyride device of the present invention scheme drawing when chimeric, for the state of direction dish column combination;

Fig. 5 is anti-joyride device of the present invention scheme drawing when separating, and further specifies the state of bearing circle column idle running;

Fig. 6 is the decomposing schematic representation of another embodiment of the present invention;

Fig. 7 is the chimeric scheme drawing of another embodiment of the present invention;

Fig. 8 is the separation scheme drawing of another embodiment of the present invention.

The main element nomenclature

1 bearing circle column, 2 capstans, 3 Hooke's couplings

10 first axle drive shafts, 11 bulge loops, 12 oblique conical sections

13 lead segment, 15 pivot sections, 20 second axle drive shafts

21 conjugate foramens, 22 guide holes, 25 pivot holes

30 clutch units, 32 key pieces 320 are led the arc edge

33 keyways, 330 oblique surfaces, 34 clutch tubes

340 outside threads, 341 flanges, 35 chutes

361 first annular grooves, 362 second annular grooves, 371 first cramps

372 second cramps, 38 housings, 39 guide rods

40 driver elements, 41 permanent seats, 42 accommodation spaces

43 servomotors, 44 output wheels, 45 swivel nuts

450 negative threads, 46 drive wheels, 51 inductive switches

52 inductive switches, 60 clutch units, 62 key pieces

64 key pieces, 65 barrels, 650 chutes

66 clutch tubes, 67 clutch part, 68 keyways

69 oblique surfaces

The specific embodiment

Please cooperate referring to Fig. 1,2 and shown in Figure 3, anti-theft device for vehicle of the present invention includes one first axle drive shaft 10, one second axle drive shaft 20, a clutch unit 30 and a driver element 40, and wherein first and second

axle drive shaft

10,20 can be formed a bearing circle column 1;

Wherein the top of first axle drive shaft 10 lock is provided with a capstan 2, for the usefulness of using the rotation steer direction;

And the bottom of second axle drive shaft 20 lock is provided with the Hooke's coupling 3 of a connection wheel of vehicle deflector, for turning to of control wheel;

Clutch unit 30 can be used for driving first axle drive shaft 10 upwards or second axle drive shaft 20 moves down or first again, two

axle drive shafts

10,20 same moved further, and make first of bearing circle column 1, two

axle drive shafts

10,20 separation are relative idle running shape, the present invention is a main embodiment to drive that first axle drive shaft 10 moves, it lies in first axle drive shaft, 10 contiguous second axle drive shafts, 20 places and is installed with a bulge loop 11, and first axle drive shaft, 10 bottoms are formed with an oblique conical section 12, first axle drive shaft 10 has protruded out a lead segment 13 in oblique conical section 12 bottoms again, second axle drive shaft 20 then is formed with the conjugate foramen 21 and guide hole 22 that a correspondence plugs aforementioned oblique conical section 12 and lead segment 13, this clutch unit 30 also is formed with a polygonal embedding part on the oblique conical section 12 of first axle drive shaft 10, embedding part of the present invention system is embodiment with a key piece 32 that protrudes, and key piece 32 root edges are formed with leads arc edge 320, moreover the suitable corresponding embedding part outer rim of the conjugate foramen 21 inner edge shapes of clutch unit 30, and second axle drive shaft 20 is formed with the keyway 33 of a corresponding keys piece 32 in conjugate foramen 21 peripheries, make first, two

axle drive shafts

10,20 can utilize embedding part to insert in the conjugate foramen 21 time, utilize key piece 32 and keyway 33 relative inlay cards, moreover second axle drive shaft, 20 top end faces are formed with an oblique surface 330, aforementioned keyway 33 inflow points are positioned at nadir, in order to when key piece 32 and keyway 33 fully during contraposition, can produce guide function;

Moreover above-mentioned clutch unit 30 has a clutch tube 34, these clutch tube 34 inner edges be formed with twice radially first, two annular grooves 361,362, pulled first to detain respectively, two cramps 371,372, in order to the pull bulge loop 11 of first axle drive shaft 10 of folder, make clutch tube 34 rotations relatively of first axle drive shaft 10, and synchronization lifting, clutch tube 34 outer rims are formed with axially extended chute 35 together again, and the outer housing 38 that can be fixedly arranged on the vehicular meter seat that is provided with of clutch unit 30, and be installed with a guide rod 39 in the housing 38, wherein guide rod 39 can be for chute 35 corresponding sliding the establishing of clutch tube 34, allow clutch tube 34 can be limited by the guide rod 39 of housing 38, it only can be gone up, following slippage, and can't rotate in the original place;

As for driver element 40, bulge loop 11 tops that then lie in first axle drive shaft 10 are provided with a permanent seat 41, and be formed with an accommodation space 42 in the permanent seat 41, this accommodation space 42 can be for a motor 43 is set, this motor 43 has an output wheel 44 that passes permanent seat 41, first axle drive shaft 10 is pivoted with a swivel nut 45 in permanent seat 41 belows, these swivel nut 45 inner edges are formed with the negative thread 450 of corresponding aforementioned clutch tube 34 outside threads 340, for driving on the clutch tube 34, bottom offset, moreover swivel nut 45 top peripheries are formed with the drive wheel 46 of a corresponding aforementioned output wheel 44, allow motor 43 can drive swivel nut 45 rotation, and driver element 40 can be and can drive on the clutch unit 30 clutch tubes 34, the tooth bar of bottom offset, connecting rod, elements such as telescoping cylinder;

Moreover housing 38 inner faces of aforementioned clutch unit 30 are upper and lower is arranged with an

inductive switch

51,52, and aforementioned clutch tube 34 root edges are formed with flange 341 one, for control clutch tube 34 upper and lower mobile upper and lower limit positions;

Via previous designs, form a bearing circle segmentation and the anti-theft device for vehicle of clutch relatively.

By aforesaid structure design, anti-joyride device of the present invention is when practice, as Fig. 3,4 and shown in Figure 5, the present invention can see through coded lock, fingerprint identification or wafer lock or the modes such as vehicle electric switch or Central Processing Unit (CPU) that connect open and close driver element 40, it mainly is after the car owner sees through the correct way startup and drives driver element 40, can drive the rotation of swivel nut 45 original places, and because clutch tube 34 is subjected to guide rod 39 location of housing 38, therefore clutch tube 34 only can stretch out downwards, again because clutch tube 34 utilizes first, two cramps 371,372 press from both sides the bulge loop 11 of first axle drive shaft 10 of pulling, so can drive first axle drive shaft 10 synchronously moves down, and then to make the embedding part that is positioned at first axle drive shaft 10 be the keyway 33 that key piece 32 embeds second axle drive shaft, 20 conjugate foramens 21, make first axle drive shaft 10 and second axle drive shaft 20 chimeric fully, therefore when the capstan 2 of user's steering wheel rotation column 1, also can drive the Hooke's coupling 3 of bearing circle column 1 bottom synchronously, thereby reach the purpose that control vehicle turns to;

Moreover, form the end face of leading the arc edge 320 and second axle drive shaft 20 through clutch unit 30 in key piece 32 root edges and be formed with oblique surface 330, and fit keyway 33 is positioned at the design of oblique surface 330 nadirs, after first and second

axle drive shaft

10,20 separates, when key piece 32 slightly misplaces with keyway 33, contraposition correcting rapidly, and do not influence the chimeric of first axle drive shaft 10 and second axle drive shaft 20, and can guarantee that the capstan 2 of bearing circle is positioned the tram.

Need carry out in addition when antitheft when parking, for example utilize relay to close when extracting car key in electric switch, start aforesaid driver element 40 and make its backward rotation, and allow swivel nut 45 original places reverse, because clutch tube 34 is subjected to housing 38 guide rods 39 location, therefore clutch tube 34 only can upwards be withdrawn, again because clutch tube 34 utilizes first, two cramps 371,372 press from both sides the bulge loop 11 of first axle drive shaft 10 of pulling, so driving first axle drive shaft 10 synchronously moves up, and then the embedding part key piece 32 that is positioned at first axle drive shaft 10 is separated with the keyway 33 of second axle drive shaft, 20 conjugate foramens 21, so when the capstan 2 on user's steering wheel rotation column 1, it only can drive first axle drive shaft 10, and can't drive second axle drive shaft 20 and Hooke's coupling 3, and then reach the bearing circle theft-proof effect that dallies.

Moreover clutch unit of the present invention has different embodiment in addition, it is as Fig. 6,7 and shown in Figure 8, this clutch unit 60 is formed with the pivot section that can articulate relatively 15 and pivot hole 25 respectively in first axle drive shaft 10 and the opposed end of second axle drive shaft 20, and clutch unit 60 also is formed with a polygonal embedding part in the contiguous pivot sections of first axle drive shaft 10 15 places, the present invention is embodiment with a key piece 62, moreover clutch unit 60 and be formed with the embedding part 63 of corresponding aforementioned first axle drive shaft, 10 embedding parts in the outer peripheral edges place, end of second axle drive shaft 20, it is also for having the key piece 64 of corresponding previous key piece 62, the present invention is embodiment with two cooresponding key pieces 62, moreover clutch unit 60 spiral shell in the swivel nut 45 of aforementioned driver element 40 is provided with a barrel 65, and barrel 65 outer rims are formed with the chute 650 of corresponding shell block 38 guide rods 39, make barrel 65 used by swivel nut 45, following slippage, moreover barrel 65 belows are pivoted with a clutch tube 66, these clutch tube 66 inner edges are formed with the clutch part 67 of corresponding aforementioned embedding part, its keyway 68 by corresponding embedding part key piece 62 is constituted, make clutch tube 66 driven by barrel 65, bottom offset, and rotated synchronously by the embedding part effect of first axle drive shaft 10, moreover clutch tube 66 bottom surfaces and be formed with an oblique surface 69 that can import keyway 68, in order to allow clutch tube 66 can embed the key piece 64 of the embedding part of second axle drive shaft 20 smoothly, but and reach allow first axle drive shaft, 10 driven in synchronism, second axle drive shaft 20 (as shown in Figure 7), and when moving (as shown in Figure 8) when separating on the clutch tube 66 with the embedding part of second axle drive shaft 20, then make 20 idle running of first axle drive shaft, 10 relative second axle drive shafts, and reach theft-proof purpose.

Conclude above stated specification as can be known, the present invention utilizes the bearing circle column to form the multistage axle drive shaft, and allows the adjacent driven axle can be by the design of clutch structure inlay card and idle running, and can utilize additional outer steel sleeve to escort this structure, and it is not easily-disassembled to be positioned at instrument carrier panel inside, and reaches theft-proof purpose.And previous embodiment is not according to this present invention to be done any pro forma restriction only for being used for explaining the present invention, so under creation spirit of the present invention, carry out the modification or the change of any pattern, all must belong to category of the present invention.

Claims

1. anti-theft device for vehicle is characterized in that it includes:

One first axle drive shaft, its top is provided with a capstan;

One second axle drive shaft, its bottom is provided with a Hooke's coupling, and first axle drive shaft can be concatenated into a bearing circle column relatively with second axle drive shaft;

One clutch unit, it is located at first and second axle drive shaft serial connection place relatively, this clutch unit has one can upper and lower mobile clutch tube, thereby wherein the clutch tube drives first axle drive shaft by its upper and lower mobile effect and makes first and second axle drive shaft produce inlay card to rotate synchronously or separate the relation of idle running relatively relative to upper and lower the moving of second axle drive shaft; Described clutch unit is installed with a bulge loop on first axle drive shaft, and the first axle drive shaft bottom is formed with a polygonal embedding part, second axle drive shaft then is formed with a conjugate foramen that supplies embedding part to plug, the clutch tube of clutch unit utilizes aforementioned bulge loop to drive that first axle drive shaft moves and the rotation of relative first axle drive shaft, clutch tube outer rim is formed with axially extended chute together, and clutch unit is provided with one outward and is fixedly arranged on the housing of vehicular meter seat, and is installed with a guide rod for inlay card clutch tube in the housing;

One driver element, it drives upper and lower the moving of clutch tube of aforementioned clutch unit.

2. anti-theft device for vehicle as claimed in claim 1, it is characterized in that: described clutch unit has a key piece that protrudes in the embedding part of first axle drive shaft, and key piece root edge is formed with leads the arc edge, and second axle drive shaft is formed with the keyway of a corresponding keys piece in the conjugate foramen periphery, and the second axle drive shaft top end face is formed with an oblique guide lug, keyway is positioned at this oblique guide lug nadir, in order to when key piece and keyway fully during contraposition, can produce guide function.

3. anti-theft device for vehicle as claimed in claim 1, it is characterized in that: the clutch tube inner edge of described clutch unit is formed with twice first and second annular groove radially, to detain first and second cramp of having pulled respectively, in order to the pull bulge loop of first axle drive shaft of folder, make first axle drive shaft rotation of clutch tube and synchronization lifting relatively.

4. anti-theft device for vehicle as claimed in claim 1, it is characterized in that: the first axle drive shaft bottom of described clutch unit is formed with an oblique conical section, and first axle drive shaft has protruded out a lead segment in the oblique conical section bottom, and second axle drive shaft is formed with the guide hole of a corresponding lead segment in the conjugate foramen bottom.

5. anti-theft device for vehicle as claimed in claim 1, it is characterized in that: the upper and lower inductive switch that is arranged with of the housing inner face of described clutch unit, and aforementioned clutch tube root edge is formed with flange one, for the upper and lower mobile upper and lower limit position of control clutch tube.

6. anti-theft device for vehicle as claimed in claim 1, it is characterized in that: described driver element is provided with a permanent seat in first axle drive shaft, and form in the permanent seat motor is set, this motor has an output wheel that passes permanent seat, first axle drive shaft is pivoted with a swivel nut in the permanent seat below, this swivel nut inner edge is formed with the externally threaded negative thread of corresponding aforementioned clutch tube, moreover swivel nut top periphery is formed with the drive wheel of a corresponding aforementioned output wheel, allow motor drive the swivel nut rotation, to drive the upper and lower slippage of clutch tube.

7. anti-theft device for vehicle as claimed in claim 1 is characterized in that: described driver element is for driving tooth bar, connecting rod or the telescoping cylinder of the upper and lower displacement of clutch unit clutch tube.

8. the bearing circle of a tool anti-theft device for vehicle is characterized in that it includes:

One column, it has one first axle drive shaft and one second axle drive shaft of relative serial connection;

One capstan, its lock are pulled in the first axle drive shaft top of aforementioned column;

One Hooke's coupling, its lock are pulled in the second axle drive shaft bottom of aforementioned column, can be concatenated into a bearing circle column to connect a bogie of car first axle drive shaft relatively with second axle drive shaft;