CN2329574Y

CN2329574Y - Anti-theft lifter for spare tyre of vehicle

Info

Publication number: CN2329574Y
Application number: CN 98217307
Authority: CN
Inventors: 钟育青; 钟育冰
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-07-15
Filing date: 1998-07-15
Publication date: 1999-07-21
Anticipated expiration: 2008-07-15

Abstract

The utility model discloses an anti-theft lifter for a spare tire of a vehicle. The utility model is characterized in that one end of a rope winding wheel is additionally provided with a ratchet wheel which is connected into one body with the rope winding wheel; the position which is adjacent to the ratchet wheel is provided with a ratchet pawl, an eccentric lock used for controlling the ratchet pawl and a safety lock used for reinforcing the eccentric lock. The utility model has the functions of the double interlocking and the double theft protection, and the firm and safe support and hang of the spare tire can be ensured.

Description

The antitheft lifter of vehicle spare tyre

The utility model relates to the antitheft lifter of a kind of vehicle spare tyre.

Existing vehicle spare tyre lifter does not all have anti-joyride device, causes the stolen phenomenon of spare tyre to happen occasionally, and has a strong impact on the normal operation of chaufeur, incurs loss through delay haulage time, causes direct and indirect economic loss.Even resemble Chinese patent with notification number CN2222103y disclosed " self locking type bidirectional torsion bar release spare tyre lifter ", it has only increased a mutual interlocking gear, to prevent vehicle in the process of moving owing to vibration is fallen down spare tyre, the not antitheft effect of tool; Be exactly that Chinese patent is with notification number CN2159916y disclosed " vehicle spare tyre anti-joyride device ", because of it is not made as one with the spare tyre lifter, but remedy a kind of additional special-purpose theft-proof lock that the spare tyre lifter does not have the anti-joyride device deficiency, this no matter from appearance or on using still economically, not very good.

The purpose of this utility model is to design a kind of antitheft lifter of vehicle spare tyre with dual interlocking and double anti-theft function.

The purpose of this utility model realizes with following proposal: the antitheft lifter of this vehicle spare tyre, comprise housing, bull wheel, Cycloidal Wheel, the Cycloidal Wheel guide plate, the bull wheel overcoat, steel rope, ring washer, assembly is hung in eccentric shaft and spare tyre holder, set up a ratchet that combines as a whole with it at bull wheel one end, in the through hole of the lower housing portion adjacent, be press-fitted a pawl axis that is set with torsion spring and ratchet with ratchet, and be welded with washer at its axle head, be set with one by minor axis with the pawl axis next-door neighbour and in than its slightly high housing through-hole, the eccentric lock that eccentric lock projection and eccentric wheel combine as a whole, and the end at the overhanging housing of its minor axis is welded with one section triangular prism as lock core, and overlapped one admittedly than the long garden column casing of triangular prism summary, also be provided with on the same horizontal surface adjacent and pass through nut with eccentric lock, screw rod is anchored on the safety lock on the housing, and is provided with a back plate that heads on safety lock in housing.The tapered end of safety lock heads on the projection side on the eccentric lock, and ratchet pawl head is inserted in the hook tooth, even safety lock is pried open, if not turn is welded in the triangular prism on the eccentric lock minor axis, ratchet takes off and be unable to do without hook tooth.

Based on above-mentioned technical solution, therefore make the following characteristics that the utlity model has:

The one, owing to adopting cycloid in planet wheel and ratchet, these two groups of mutual interlocking gears of ratchet, it is very firm that the spare tyre holder is hung;

The 2nd, adopt safety lock to add two groups of lockset double anti-thefts of eccentric lock, even safety lock is pried open,, then can't make ratchet throw off hook tooth, thereby guarantee that spare tyre is perfectly safe if there is not the triangular prism on the cam sleeve turn eccentric lock in the special use.

Accompanying drawing has provided embodiment of the present utility model.

Fig. 1 is the utility model overall structure cross-sectional schematic.

Fig. 2 is the ratchet that promptly combines as a whole with bull wheel of other part numbering 12-14 and the structural representation that is contained in the Cycloidal Wheel in its end face.

Fig. 3 is that other part numbering 9 is the structural representation of ratchet.

The utility model is described in further detail below in conjunction with accompanying drawing.

With reference to Fig. 1, a ratchet 12 that combines as a whole with bull wheel 13 is housed in the right part of housing 1, in the end face of ratchet 12, adorned a Cycloidal Wheel 14, the oblong convex surface in its end face projection one band hole, garden, the rectangular through holes that open at the center of Cycloidal Wheel guide plate 15 is (with reference to Fig. 2) on the online oblong convex surface of taking turns 14 end faces of suit just in time, with one than bull wheel 13 shorter and the bull wheel overcoat 16 that has 1/4 breach be sleeved on the bull wheel 13, it opens 1/4 breach is to penetrate for the steel rope that holder is hung on the assembly 20, and shorter be convenient to walk up and down in the plug helix of steel rope on bull wheel 13 to; Again eccentric shaft 19 is inserted the centre hole of the aperture Cycloidal Wheel 14 on the housings 1, the centre hole and the housing 1 corresponding through hole of ratchet 12 and the bull wheel 13 that combines as a whole with it, and be welded with ring washer 18 at its axle head; Because of enclosing in the rope sheave 13 is hollow, the through hole of one end of steel rope 17 in overcoat 16 breach pass first plug helix that is located at bull wheel 13 enters knotting in its empty stomach, and with a metallic sheath clamp fitting wherein, the other end of steel rope 17 then is fixed on the spare tyre holder and hangs on the assembly 20; In the through hole of housing 1 bottom adjacent, be press-fitted a pawl axis 7 (referring to Fig. 3) that is set with torsion spring 8 and ratchet 9, and be welded with catch 10 at its axle head with ratchet 12; Be set with an eccentric lock 3 (as shown in Figure 3) that combines as a whole by minor axis, eccentric lock projection 4 and eccentric wheel with pawl axis 7 next-door neighbours and in than its slightly high housing 1 through hole, and the end at the overhanging housing of its minor axis is welded with one section triangular prism as lock core, and has overlapped a garden column casing slightly longer than triangular prism admittedly; Also be provided with on the same horizontal surface adjacent with screw rod 6, nut 5 and be anchored on safety lock 2 on the housing 1, and in housing 1, have one to head on safety lock 2 back plates 11 with eccentric lock.

Its working process is such: when hanging spare tyre with holder, earlier spare tyre is placed holder to hang on the assembly 20, make tapered end withstand projection 4 sides on the eccentric lock 3 with key locking safety lock 2 again, at this moment the eccentric wheel on the eccentric lock 3 is in nadir, and ratchet 9 is subjected to the torsion of torsion spring 8 that its pawl head is inserted in the tooth of ratchet 12; Then clockwise rotate eccentric shaft 19 with rocking bar, make the cycloid in planet wheel mechanism drive bull wheel 13 and make clickwise, and make steel rope 17 in its plug helix, and hang assembly 20 and be raised to vehicle chassis spare tyre lifter bottom owing to the contraction of steel rope 17 drives holder, promptly finish holder and hang the spare tyre process.

When needs use spare tyre, promptly earlier open safety lock 2 with key, make tapered end break away from the projection 4 of eccentric lock 3, be enclosed within on the triangular prism with special-purpose interior cam sleeve again and rotate counterclockwise, eccentric wheel on the eccentric lock 3 is at the highest notch and presses down ratchet 9 afterbodys, make ratchet 9 pawl heads break away from ratchet 12 tooth portions, and can not automatically reset, at this moment the click mutual interlocking gear is removed; Then rotate counterclockwise eccentric shaft 19, make the cycloid in planet wheel mechanism drive that bull wheel 13 is made left-hand revolution and will decontrol, make holder hang assembly 20 and be with spare tyre to drop to ground gradually, finish the spare tyre process of taking around steel rope 17 thereon with rocking bar.

Claims

1, the antitheft lifter of a kind of vehicle spare tyre, comprise housing (1), bull wheel (13), Cycloidal Wheel (14), Cycloidal Wheel guide plate (15), bull wheel overcoat (16), steel rope (17), ring washer (18), assembly (20) is hung in eccentric shaft (19) and spare tyre holder, it is characterized in that bull wheel one end set up a ratchet that combines as a whole with it (12), in the through hole of housing (1) bottom adjacent, be press-fitted a pawl axis (7) that is set with torsion spring (8) and ratchet (9) with ratchet (12), and be welded with washer (10) at its axle head, twoly be set with one by minor axis in than its slightly high housing (1) through hole with pawl axis (7) next-door neighbour, the eccentric lock (3) that eccentric lock projection (4) and eccentric wheel combine as a whole, and the end at the overhanging housing of its minor axis is welded with one section triangular prism as lock core, and overlapped one admittedly than the long garden column casing of triangular prism summary, also do not pass through nut (5) on the same horizontal surface adjacent with eccentric lock (3), screw rod (6) is anchored on the safety lock (2) on the housing (1), and is provided with a back plate (11) that heads on insurance (2) in housing (1).

2, according to the antitheft lifter of the described vehicle spare tyre of claim 1, the tapered end that it is characterized in that safety lock (2) heads on projection (4) side on the eccentric lock (3), ratchet (9) pawl head is inserted in ratchet (12) tooth, even safety lock (2) is pried open, if not turn is welded in the triangular prism on eccentric lock (3) minor axis, ratchet (9) takes off too busy to get away ratchet (12) tooth.