CN2285234Y - Anti-theft shaft lock - Google Patents

Abstract

A novel anti-theft lock for vehicle integrates the non-driving wheel axle and lock of vehicle. The axle is a hollow axle, the lock is sealed in the axle, the lock core is connected with a convex shaft lever, and the lock pin is driven by the convex shaft lever to connect the axle and the hub together, so that the axle and the hub cannot rotate relatively, and the purpose of locking the vehicle is achieved. Because the lock body is hidden and is difficult to smash, cut and pry, the anti-theft lock has a higher anti-theft function.

Description

Theft-proof axle-lock

The utility model belongs to anti-theft lock for vehicle.Be specially adapted to bicycle, three-wheel vehicle, motor bike.

At present, bicycle is the main vehicle in China people daily life, and in recent years, along with expanding economy, motor bike also began entering part people's family, but the stolen problem of vehicle is also more and more serious, and that gives society stablely brings great influence.Analyzing its easily stolen one of the main reasons is: present car, lock purchase behind the car equipped again on, outside the lock body all is exposed to, is very easily pounded, prized or cut off locking bar, and stolen easily.

The purpose of this utility model is that a kind of body of locking of design is hidden and be combined into one with the undriven axle of car, makes it to be difficult to pound, to prize, cut, and promptly as the wheel shaft of non-driving wheel, lock--shaft lock that again can the dual-use function that the non-drive wheels of restriction is rotated behind the lock car.

The purpose of this utility model is achieved like this: the tube axle 1 that the undriven axle of car is changed into hollow type, press-fit a lock 2 by tube axle one end, lock core 3 rear ends connect one can be driven the crown pin 4 that rotates synchronously together by lock core, this crown pin can form with same blank segmental machining with lock core, be an integral body, on the axial plane of crown pin, be placed with and controlled the safetied pin 5 that moves up and down by convex, one end of safetied pin inserts in the corresponding pin-and-hole of opening on the tube axle periphery 9, hypomere at safetied pin, under the tube axle inwall one section, be with a compression spring 6 that is used for making the safetied pin pop into position, on the axle skin 8 of non-driving wheel, also have and the corresponding pin-and-hole 10 of tube axle.For prevent because of the clamp nut of fastening tube axle and car front fork released after, promoting pivot pin by front fork rotates, and drive axle skin and wheel, and the situation that loses lock car function takes place, on the circumference of tube axle two ends, be processed with the front fork locating surface 14 of the placement front fork jaw of symmetry, for this reason, the front fork jaw that suitably changes shape also can prevent common the wheel on this type of being replaced car.When shaft lock was opened, safetied pin was in the brchypinacoid center of crown pin, in the pin-and-hole of safetied pin termination out of reach axle skin.When lock during car, because lock core rotates, drive crown pin and rotate, safetied pin is brought on the macropinacoid of crown pin gradually, and the pin-and-hole by the tube axle inserts in the pin-and-hole of axle skin, and a shaft lock and an axle skin are connected together, and can not relatively rotate, and reaches the purpose of lock car.After lock was opened, crown pin rotated, and compression spring pushes back original position with safetied pin.The axle skin is thrown off with the tube axle, but relative motion again makes wheel rotatable.

Since this shaft lock be will the lock with wheel the axle be combined into one, and the lock body be sealed in the tube axle, the car stealer be difficult to prize, pound, cut the lock body.If want under keyless situation to pull down shaft lock is whole, because tube axle two ends are sealing, and pin connects together the tube axle in the axle skin, so also be difficult to pull down.In addition, because the existence of front fork locating surface, so there is not the situation of unscrewing clamp nut and car being pushed, and the front fork jaw that changes shape has guaranteed to change common the wheel.Obviously, the anti-theft feature of this shaft lock is remarkable.

The lock core of this shaft lock can be selected production-release design for use fully, need not the design specialized structure.Car dispatches from the factory and just has lock, has made things convenient for the car purchaser.

Be further described below in conjunction with implementing the principle and the structure of accompanying drawing Theft-proof axle-lock:

Fig. 1 is the generalized section under the shaft lock opening.

Fig. 2 on the tube axle for preventing that clamp nut from unclamping the sectional schematic diagram of the front fork locating surface that the back promoted to process by the people.

Fig. 3 is the sectional schematic diagram of oval crown pin.

Among the figure, 1 is the tube axle of shaft lock; 2 for press-fiting the spring lock in tube axle one end; 3 is cylinder of spring lock; 4 for lock core be the crown pin of one, the other end of crown pin is slightly smaller than the cylinder of tube axle internal diameter for its diameter, to increase the supporting power of tube spool; For ease of the assembling of shaft lock lock core, two symmetric positions on the cylinder of crown pin termination are respectively opened a groove, as shown in Figure 3.5 is safetied pin; 6 is compression spring; 7 is the end socket of tube axle, and this end socket press-fits the end in the tube axle; 8 is the axle skin; 9 is the pin-and-hole on the tube axle; 10 is the pin-and-hole on the axle skin; 11,12,13 be respectively axle a bowl, ball, axle bumper, be used for the rotation that cooperates installation and wheel of a skin and shaft lock, this three part is identical with existing common car, and all the other parts identical with common car do not explain not within this specification sheets scope; 14 is the front fork locating surface.

The safetied pin of present embodiment and tube axle, the pin-and-hole on the axle skin is 4 respectively, is distributed on the upper and lower surfaces.The crown pin of present embodiment is oval, and is stable for making safetied pin as shown in Figure 3, respectively processed a groove in the longitudinal end of convex, as shown in Figure 3.

When lock was opened, the transverse of oval axostylus axostyle was horizontal, the out of reach axle skin place, termination of safetied pin, axle skin and shaft lock can relatively rotate, wheel is rotatable, when the lock car, and key rotation lock core, drive crown pin, safetied pin is promoted upwards by the major axis of crown pin, and its termination is passed pin-and-hole 9 and entered pin-and-hole 10, and axle skin and shaft lock are connected together, can not relatively rotate, lock is lived; During if unblank, then crown pin rotates, and major axis places level, and spring pushes back original position with lock, and axle skin and shaft lock are thrown off, and wheel is rotatable.

Claims (5)

1, a kind of Theft-proof axle-lock, it is made up of vehicle undriven axle and lock, the wheel shaft that it is characterized in that car is a hollow type tube axle, press-fit a lock by tube axle one end, lock core one end connects a crown pin that can rotate synchronously with lock core, crown pin can be an integral body with lock core, be placed with on the crown pin axial plane and can be pushed the safetied pin that moves up and down because of crown pin rotates, one end of pin inserts in the pin-and-hole that has on the tube axle circle wall, and the hypomere of pin is a hypomere in the tube axle inwall, suit one can make pin return the compression spring of original position, have on the axle skin of wheel and the corresponding pin-and-hole of tube axle, on the circumference of tube axle two ends, respectively be processed with two relative planes

2, Theft-proof axle-lock according to claim 1, an end that it is characterized in that crown pin is cylindrical, its external diameter is slightly less than a tube axle internal diameter, and has a groove of being convenient to the shaft lock assembling.

3,, it is characterized in that lock is spring lock according to claim 1,2 described Theft-proof axle-locks.

4, Theft-proof axle-lock according to claim 1 is characterized in that an end of tube axle is equipped with end socket.

5, Theft-proof axle-lock according to claim 1, the convex that it is characterized in that crown pin is for oval, and two longitudinal end of elliptical area respectively have a little groove.

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