CN203213722U - Multiangular safe matching structure of lock cylinder - Google Patents

Abstract

The utility model discloses a multiangular safe matching structure of a lock cylinder. A lockhole is annular and provided with a circular hole outer wall and a multiangular hole inner wall, and a key is tubular and provided with a circular pipe outer wall and a multiangular pipe inner wall. The multiangular safe matching structure of the lock cylinder can well prevent thieves and rascals from unlocking and stealing, and integrality of a lock structure is guaranteed.

Description

The polygonal secure fit structure of a kind of lock core

Technical field

The utility model relates to the technical field of lockset, and is special relevant with the polygonal secure fit structure of a kind of lock core.

Background technology

In the prior art, formed by lock body and key by a kind of lockset.Lockhole has circular port inwall and hexagon ring outer wall in the form of a ring.And key in a tubular form, has round tube inwall and hexagonal pipe outer wall.This form makes lockhole and key outward appearance be similar to the plum blossom shape.

In the said structure, because the hole inwall of lockhole is rounded, and the hole outer wall is hexagon, so hole is big, lockset safety is poor, be mainly reflected in following some:

One, the lockhole hole is big, and the thieves or robbers who act under cover of night very easily adopt simple tool or iron wire etc. to insert lockhole, and the application of force is attempted a little, gets final product easy for unlocking;

Two, key shape rule, more convenient other instrument or member replace unblanking;

Three, the lockhole hole is big, and hoodle is easily deviate from after installing.

This shows that existing lockset safety is poor, await really improving.

The utility model content

The purpose of this utility model is to provide a kind of lock core polygonal secure fit structure, can prevent better that the thieves or robbers who act under cover of night from unblanking to commit theft, and guarantees the integrality of lock structure.

In order to reach above-mentioned purpose, solution of the present utility model is:

The polygonal secure fit structure of a kind of lock core, lockhole in the form of a ring, lockhole has circular port outer wall and polygonal hole inwall; And key in a tubular form, and key has round tube outer wall and polygonal inside pipe wall.

Described lockhole has heptangle hole inwall; And key has the heptangle inside pipe wall.

Described lockhole has anistree hole inwall; And key has anistree inside pipe wall.

After adopting said structure, the utility model has circular port outer wall and polygonal hole inwall because of the lockhole design is, and key design is and has round tube outer wall and polygonal inside pipe wall, like this, the utility model compared with prior art, hole can be littler, improves the safety of lockset thus, be mainly reflected in following some:

One, the lockhole hole is littler, and the thieves or robbers who act under cover of night are difficult to adopt simple tool or the iron wire application of force in lockhole to be attempted, and can't realize that namely foreign matter unblanks;

Two, key shape is irregular, can't find corresponding tool or member to replace key unlocking;

Three, the lockhole hole is littler, and hoodle can not deviate from after installing, and can guarantee the integrality of lock structure.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is the Key structure schematic diagram of the utility model embodiment one;

Fig. 3 is the structural representation of the utility model embodiment two;

Fig. 4 is the Key structure schematic diagram of the utility model embodiment two.

Label declaration

Lockhole 1 circular port outer wall 11

Polygonal hole inwall 12

Key 2 round tube outer walls 21

Polygonal inside pipe wall 22.

The specific embodiment

As shown in Figures 1 to 4, the utility model discloses the polygonal secure fit structure of a kind of lock core, and lockhole 1 in the form of a ring, lockhole 1 has circular port outer wall 11 and polygonal hole inwall 12, and as shown in Figure 1, lockhole 1 has heptangle hole inwall, as shown in Figure 3, lockhole 1 has anistree hole inwall.

And correspondingly, key 2 in a tubular form, key 2 has round tube outer wall 21 and polygonal inside pipe wall 22, as shown in Figure 2, key 2 has the heptangle inside pipe wall, as shown in Figure 4, key 2 has anistree inside pipe wall.

Like this, the utility model compared with prior art, the hole of lockhole 1 can be done forr a short time, if adopt simple tool or iron wire in lockhole 1, can't the application of force to unblank, and, key 2 out-of-shapes, can't find corresponding tool or member to replace unblanking, improve the safety of lockset thus; In addition, lockhole 1 hole is littler, and hoodle can not deviate from after installing, and can guarantee the integrality of lock structure.

Being specific embodiment of the utility model only below, is not the restriction to the utility model interest field, allly is equal to improvement according to what design concept of the present utility model was done, all should fall into protection category of the present utility model.

Claims (3)

1. polygonal secure fit structure of lock core is characterized in that: lockhole in the form of a ring, lockhole has circular port outer wall and polygonal hole inwall; And key in a tubular form, and key has round tube outer wall and polygonal inside pipe wall.

2. the polygonal secure fit structure of a kind of lock core as claimed in claim 1, it is characterized in that: described lockhole has heptangle hole inwall; And key has the heptangle inside pipe wall.

3. the polygonal secure fit structure of a kind of lock core as claimed in claim 1, it is characterized in that: described lockhole has anistree hole inwall; And key has anistree inside pipe wall.

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