CN201963052U - Double-row internal tooth lock core and key - Google Patents

Abstract

The utility model discloses a double-row internal tooth lock core and a key, which comprise a lock core and the key, wherein the key is provided with two rows of internal teeth, two rows of locking sheet holes of the lock core are in symmetrical distribution, locking sheets arranged on the lock core are in a symmetrical structure, and middle positions of two inner sides of the locking sheets are respectively provided with lug bosses. The double-row internal tooth lock core and the key have the advantages that materials are saved, the cost is reduced, the mutual unlocking rate of a lock is greatly improved, and the probability that automobiles are stolen is reduced. Because all of the two rows of teeth take effect, the stress is completely symmetrical when the key is inserted into or pulled out from the lock core, and the hand feeling of inserting and pulling the key is good.

Description

A kind of double internal tooth lock core and key

Technical field

The utility model relates to a kind of double internal tooth lock core and key.

Background technology

As Fig. 1, Fig. 2, shown in Figure 3, at present, existing internal tooth lockset and Internally-toothed key structure are single locking plate structure, and the deficiency of single internal tooth lock core and single Internally-toothed key has: lockset mutual opening rate height, poor safety performance.Key inserts and when extracting lock core, and stressed all in a direction because of key forms turning moment, causes the plug feel poor.

The utility model content

The utility model purpose: the purpose of this utility model is in order to overcome the deficiency of existing product technology, a kind of double internal tooth lock core and key to be provided, improving the mutual opening rate of mechanical lock.

Technical scheme: in order to solve the problems of the technologies described above, a kind of double internal tooth lock core and key that the utility model provides comprise lock core and key, and described key has double internal tooth; Two row's locking plate hole symmetry arrangement of described lock core; Locking plate on the described lock core is a symmetrical structure, is respectively equipped with convex platform in its two middle inside position.

Beneficial effect: compared with prior art, a kind of double internal tooth lock core and key that the utility model provides have the following advantages: saved material, reduced cost; Improve the mutual opening rate of lockset greatly, reduced the stolen probability of automobile; Because double rows of teeth all works, so key stressed complete symmetry when inserting and extracting lock core, the plug feel of key is good.

Description of drawings

Figure one is existing internal tooth locking plate structure;

Figure two is the structure of existing internal tooth lock core;

Figure three is existing Internally-toothed key structure;

Figure four is double internal tooth locking plate structures of the present utility model;

Figure five is double internal tooth lock core structures of the present utility model;

Figure six is double Internally-toothed key structures of the present utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples, should understand these embodiment only be used to the utility model is described and be not used in the restriction scope of the present utility model.

As shown in Figure 4, locking plate 5 bilateral symmetry of the present utility model are respectively equipped with convex platform 6 in the middle inside position, have so just formed two complete double internal tooth locking plates 5.This locking plate 5 has and uses the few advantage of material, has only half of as shown in Figure 1 common locking plate.

As shown in Figure 5, the locking plate hole 4 of lock core 1 of the present utility model is a symmetry arrangement, compare with existing lock core shown in Figure 2, accomplished under the situation that does not increase lock core 1 bulk, make locking plate hole 4 quantity of lock core 1 increase by one times, the mutual opening rate of lockset just is greatly improved like this, thereby has reduced the stolen probability of automobile.

As shown in Figure 6, double internal tooth 3 is arranged on the key 2 of the present utility model, this double internal tooth 3 all plays the effect with locking plate 5 interworkings, like this under the prerequisite that guarantees same mutual opening rate, the utility model key 2 is compared with normal key can adopt shorter structure, has improved the convenience that people carry key.Simultaneously also because double internal tooth equal 3 works, thus key when inserting and extracting lock core 1, stressed complete symmetry is compared with the key of monolateral internal tooth, the plug feel of the key 2 that the utility model provides is better.

The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (1)

1. double internal tooth lock core and key, it is characterized in that: comprise lock core (1) and key (2), described key (2) has double internal tooth (3); Two row locking plate hole (4) symmetry arrangement of described lock core (1); Locking plate (5) on the described lock core (1) is a symmetrical structure, is respectively equipped with convex platform (6) in its two middle inside position.

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