CN2411162Y - Lock for tractor - Google Patents

Abstract

The utility model discloses a lock for a tractor, which comprises a lock nose which is welded on a direction crankshaft, wherein, a lock body is welded on a corresponding direction crankshaft sleeve; the corresponding positions in the lock body and on the direction crankshaft sleeve are provided with a lock pin with a spring, and a lock pin channel. The utility model is characterized in that a lock tongue and a lock core which can axially move are axially connected along a pin shaft on the inner end face of the lock pin in a channel of the lock body; the lock core is arranged in a core casing, and is fixed on the wall of the lock body channel by a pin. Because the lock pin, the lock tongue, and the lock core are arranged on a same axial line by the utility model and the movement and the positioning of the lock pin, the lock tongue, and the lock core are controlled by a key, the utility model has the advantages of simple structure, small size, less processes, and low cost.

Description

A kind of Lock for tractor

The utility model belongs to lockset, is specially adapted to the locking of small four-wheel tractor bearing circle.

There is a kind of name to be called the lockset of " small four-wheel tractor Direction machine lock " now, it is lock body directly to be welded in the direction arbor put, on cooresponding direction arbor, be welded with the lock nose, in cooresponding direction arbor cover and lock body, establish passage, lock pin is controlled running fix by dead bolt in passage, with direction arbor and the locking of direction arbor cover, reach antitheft purpose.This Lock for tractor, theftproof performance is good, but installs in a vertical side of lock pin with dead bolt because of lock core, makes it the processing technology complexity, the cost height.

It is simple that the purpose of this utility model provides a kind of production technology, the Lock for tractor that cost is low.

Task of the present utility model is to realize like this, it includes the lock nose that is welded on the direction arbor, cooresponding putting to arbor is welded with lock body, in lock body, put lock pin and the lock pin passage that the relevant position is provided with the band spring with the direction arbor, it is characterized in that: the inner end surface upper edge lock pin of lock pin is to being connected with dead bolt and can axially movable lock core in the passage of lock body, and lock core is contained in the core shell by dowel fixes on the lock body conduit wall.

The utility model is owing in the lock body that lock pin, dead bolt, lock core is installed on the same axis, and by their mobile and location of key control, so lock body structure is simple, volume is little, and technology is few, and cost is low.

Fig. 1 is a structural representation of the present utility model.

The drawing explanation: 1. lock nose 2. direction arbors 3. direction arbors overlap 4. lock bodies, 5. lock pins, 6. taper pull back springs, 7. dead bolts, 8. pins, 9. lock cores, 10. keys

As shown in Figure 1, the utility model is a lock of a welding nose 1 on the direction arbor 2 of small four-wheel tractor, lock body 4 is welded on the direction arbor cover 3 corresponding with lock nose 1, in the direction arbor cover 3 of correspondence lock nose 1 and lock body 4, be provided with passage, a step lock pin 5 is installed in the lock body passage, be with taper pull back spring 6 on the lock pin 5, fluted on the inner end surface of lock pin 5, connecting dead bolt 7 along the lock pin direction in the groove, dead bolt 7 and lock core 9 are contained in the core shell, the core shell is fixed on by pin 8 in the passage of lock body 4, dead bolt 7, lock core 9 is installed on the same axis with lock pin 5, controls moving axially and locating of they by key 10.Volume is little, and is simple in structure, and cost is low.

When being used for locking, hand-held key 10 inserts in the key hole, pushes away forward, and the light steering wheel rotation of another have gentle hands rotates direction arbor 2 in direction arbor cover, when turning to lock nose 1 and 5 pairs of timings of lock pin, lock pin 5 enters under the promotion of dead bolt 7 in the lock nose 1, and at this moment direction arbor 2 and direction arbor cover 3 is locked together by lock pin 5, can not rotate, trac. also just can not start, can rotate counterclockwise key 10,, finish locking its extraction.

During unlatching, key 10 is inserted in the key hole, clockwise rotate 90 degree, dead bolt 7 retreats under the action of the spring of lock core 9, and simultaneously, lock pin 5 withdraws from lock nose 1 under the effect of taper pull back spring 6, make direction arbor 2 and the direction arbor cover 3 can normal rotation, finish and unblank.

Claims (1)

1, a kind of Lock for tractor, it includes the lock nose that is welded on the direction arbor, cooresponding direction arbor puts and is welded with lock body, in lock body, put lock pin and the lock pin passage that the relevant position is provided with the band spring with the direction arbor, it is characterized in that: the inner end surface upper edge lock pin of lock pin is to being connected with dead bolt and can axially movable lock core in the passage of lock body, and lock core is contained in the core shell by dowel fixes on the lock body conduit wall.