CN201209355Y

CN201209355Y - Embedding wheel nut anti-theft lock

Info

Publication number: CN201209355Y
Application number: CNU2008200900611U
Authority: CN
Inventors: 徐恩
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-28
Filing date: 2008-05-28
Publication date: 2009-03-18
Anticipated expiration: 2018-05-28

Abstract

The utility model relates to an embedded anti-theft lock of a wheel nut, which mainly solves the problem that the prior anti-theft lock is easy to be imitated and deciphered. The embedded anti-theft lock of the wheel nut is characterized in that a casing body (3) is tightly connected with one end of a lock core (1) which is provided with a plurality of conical holes (5) with built-in lock balls (6), and the diameter difference between the small-end diameter of each conical hole (5) and each lock ball (6) is a negative value; a lock tube (7) capable of axially sliding is arranged between the casing body (3) and the lock core (1) and is provided with hemispherical grooves (4) corresponding to the conical holes (5), and a spring (2) is arranged between the lock tube (7) and the lock core (1); springs (8), caps (9) and spacer pins (13) are axially aligned and arranged in a through hole of the lock core (1) and the lock tube (7) at the other end of the lock tube (7), the caps (9) are respectively arranged on the springs (8), and spacer pins (13) are respectively arranged on the same axial positions of the springs (8) and the caps (9). The utility model has the characteristics of no change of the main body structure of the wheel nut, no special tool arrangement and hard imitation.

Description

Embedding formula wheel nut theftproof lock

Technical field:

The utility model relates to a kind of wheel anti-theft device, relates in particular to a kind of embedding formula wheel nut theftproof lock.

Background technology:

Usually the method for theft wheel is by the removing vehicle tyres locking nut, wheel is unloaded steal, and causes any property loss and vehicle can not cruising.At present, the extensive wheel anti-theft technique that adopts can be divided into three major types basically: the one, and the profile of change wheel nut is utilized the different different in nature pipe nipple dismounting nut of size; The 2nd, the frame for movement of change wheel locking nut; The dismounting nut all need use special tool under the both of these case; The 3rd, install the protection facility additional in the nut outside, increase nut dismounting difficulty.And the wheel nut theftproof lock that has flower type is obvious, loads onto the back and directly can see colored type from appearance, and the thief collects the instrument of reply flower type in view of the above, promptly can open it, even can clamp colored type with common pliers wheel is taken off.More than existing wheel anti-theft, though all have certain anti-theft feature, also exist changing wheel locking nut profile influence dynamic wheel balancing and maybe needs to carry special tool and copied problem such as crack easily.

Summary of the invention:

Need change in order to overcome existing theftproof lock that wheel locking nut profile maybe needs to carry special tool and easily by imitated problem such as crack, the utility model provides a kind of embedding formula wheel nut theftproof lock.This lockset has the agent structure that need not to change the wheel locking nut, need not the configure dedicated instrument and be difficult for by imitated characteristics.

The technical solution of the utility model is: a kind of embedding formula wheel nut theftproof lock, comprise: housing, lock core, snap, holder, protecting cover and key, housing is fastenedly connected an end of lock core, and lock core has some taper holes of built-in lock ball, and the diameter difference of the end diameter of taper hole and lock ball is a negative value; Have between housing and lock core can with its lock tube in axial sliding, have on the lock tube and the corresponding hemispherical groove of taper hole, and between lock tube and lock core spring arranged; The other end of lock tube and lock core has the snap that the through hole that is arranged in lock core and lock tube arranges vertically and places holder on the snap, is positioned at the spacer pin of same radial position with snap and holder.

Described snap and holder are arranged in order 3 for every group vertically, and radially uniform 3 groups; Spacer pin has 3, and to be equal angles spaced apart with snap and holder; Taper hole on the lock core and lock ball radial equipartition and respectively be 4; Hemispherical groove on the lock tube is radial ringed; The open-part of key is cylindrical for the ladder of the band chamfered edge that matches with the holder of axially-aligned; Protecting cover and lock core are for being threaded.

The utlity model has following beneficial effect: because this embedding formula wheel nut theftproof lock embeds in the guard aperture of hublock jack panel with its columniform contour structures, lock ball embeds in the annular groove of wheel locking nut, spacer pin limits lock tube and can not radially rotate, guarantee that holder blocks lock core and sheath, theftproof lock is fixed on the wheel nut, and can on wheel nut, freely rotate, endwisely slip and can not do.Unload theftproof lock and only need use and the supporting private key of this lock, can conveniently open, behind the automatic separating wheel nut of theftproof lock, just detachable.What the internal construction of this lock adopted in addition is the Lock Part that a plurality of parts of lock core, lock tube, snap, holder and spacer pin cooperate; have only with matched key with it and could open; has hidden anti-theft feature; only observe external structure and be difficult to copy, unload, stick up aspects such as pressure, impact from revolving of wheel nut and implement omnibearing protection.So this lockset has the agent structure that need not to change the wheel locking nut, need not the configure dedicated instrument and be difficult for by imitated advantage.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model locking state.

Accompanying drawing 2 is the sectional drawing of the A-A of Fig. 1

Accompanying drawing 3 is the structural representation of the utility model opening

1-lock core 2-spring 3-shell 4-hemispherical groove 5-taper hole 6-lock ball 7-lock tube 8-snap 9-holder 10-protecting cover 11-key 12-key hole 13-spacer pin

Embodiment:

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

Accompanying drawing 1 is depicted as the locking state structural representation of embedding formula wheel nut theftproof lock, comprise housing 3, lock core 1, lock tube 7, snap 8, holder 9, protecting cover 10 among the figure, between lock core 1 and lock tube 7 spring 2 is arranged, lock tube 7 can axially slide at housing 3 and 1 of lock core under the effect of spring 2; Have hemispherical groove 4 on the lock tube 7, the radial equipartition end diameter is equipped with lock ball 6 towards 4 taper holes 5 of center of circle direction in the bellmouth 5 on lock core 1, and the diameter difference of the end diameter of taper hole 5 and lock ball 6 is a negative value; Snap 8 and holder 9 are arranged in the through hole of lock core 1 and lock tube 7, and (8,9) every group are arranged in order 3 vertically, radially uniform 3 groups, form key hole 12; Protecting cover 10 is threaded with lock tube 7.

Fig. 2 analyses and observe for the A-A of Fig. 1, and 3 spacer pins 13 also are housed on lock core 1 and lock tube 7, and is positioned at same sagittal plane with snap 8 and holder 9 and to be equal angles spaced apart with snap 8 and holder 9;

The opening structural representation that Fig. 3 position should be locked, the open-part of key 11 is cylindrical for the ladder that has chamfered edge that matches with the holder 9 of axially-aligned;

Because the diameter of theftproof lock shell 3 is less than the diameter of wheel locking nut guard aperture, when needing the locking wheel, with theftproof lock propulsion wheel locking nut guard aperture, holder 9 and spacer pin 13 limit lock tube 7 and endwisely slip, taper hole 5 on the lock core 1 staggers mutually with the hemispherical groove 4 on the lock tube 7, the inwall of lock tube 7 is pushed lock ball 6, make the small end of lock ball 6 near taper hole 5 on the lock core 1, and it is inwardly outstanding, just embed in the annular groove of wheel nut, the wheel lock can only be done radially to rotate on nut and can not axially move; Protecting cover 10 outer faces are taper type, and have screwdriver and begin to speak, and screw with lock tube 7 screw threads, and booties such as the silt that takes up when avoiding vehicle operating enter in the keyhole 12, also beautify simultaneously and decorate wheel hub.In the time of need unloading theftproof lock, unload protecting cover 10 with driver's tool, key 11 inserts lockhole, holder 9 is under the thrust of key 11, the soffit of 9 holders just aligns with the axial contact surface of lock core 1 and lock tube 7, lock tube 7 is lost the qualification effect, lock tube 7 produces under the effect of spring 2 and endwisely slips, ball recess 4 on the lock tube 7 is relative with taper hole 5 on the lock core 1, withdraw from the groove of lock ball 6 from the wheel locking nut, theftproof lock can be extracted with key, and promptly available conventional instrument is to the random dismounting of wheel.So this lockset has the agent structure that need not to change the wheel locking nut, need not the configure dedicated instrument and be difficult for by imitated advantage.

Claims

1, a kind of embedding formula wheel nut theftproof lock, comprise: housing (3), lock core (1), snap (8), holder (9), protecting cover (10) and key (11), it is characterized in that: housing (3) is fastenedly connected an end of lock core (1), lock core (on) having some taper holes (5) of built-in lock ball (6), the diameter difference of the end diameter of taper hole (5) and lock ball (6) is a negative value; Have between housing (3) and lock core (1) can with its lock tube (7) in axial sliding, have on the lock tube (7) and the corresponding hemispherical groove of taper hole (5) (4), and between lock tube (7) and lock core (1) spring (2) arranged; The other end of lock tube (7) and lock core (1) has the snap (8) that the through hole that is arranged in lock core (1) and lock tube (7) arranges vertically and places holder (9) on the snap (8), is positioned at the spacer pin (13) of same radial position with snap (8) and holder (9).

2, embedding formula wheel nut theftproof lock according to claim 1, it is characterized in that: snap (8) and holder (9) are arranged in order 3 for every group vertically, and radially uniform 3 groups.

3, embedding formula wheel nut theftproof lock according to claim 1, it is characterized in that: spacer pin (13) has 3, and to be equal angles spaced apart with snap (8) and holder (9).

4, embedding formula wheel nut theftproof lock according to claim 1 is characterized in that: bellmouth (5) on the lock core (1) and lock ball (6) radial equipartition and respectively be 4.

5, embedding formula wheel nut theftproof lock according to claim 1, it is characterized in that: the hemispherical groove (4) on the lock tube (7) is radial ringed.

6, embedding formula wheel nut theftproof lock according to claim 1 is characterized in that: the open-part of key (11) is cylindrical for the ladder of the band chamfered edge that matches with the holder (9) of axially-aligned.

7, embedding formula wheel nut theftproof lock according to claim 1 is characterized in that: protecting cover (10) and lock core (1) are for being threaded.