CN2367721Y - Tightly-locking structure for antitheft door - Google Patents

Abstract

The utility model relates to a tightly-locking structure for an antitheft door from multiple directions locking the antitheft door by a center lock. A T-shaped moveable joint is arranged in the upper and the lower parts of a door body; a middle fulcrum of the moveable joint is fixedly arranged on the door body, wherein, a rod of the upper end is connected with a guide rod of one end of the door, a rod of the lower end is connected with the guide rod of the other end, and a rod of the middle part is connected with the guide rod controlled by the center lock. The utility model has the advantages of few keys, numerous locking points, firm locking, good antitheft performance and strong anti-damage capability, and is suitable for the antitheft door to use.

Description

A kind of locking mechanism of security door

The utility model relate to a kind of by middle lock from a plurality of directions locking security doors, effectively improve the locking mechanism of the security door of security door locking effect.

Existing security door is all the double-level-metal thin plate and makes, both sides can be inserted two guide pegs in the lower door frame groove simultaneously about in the middle lock control door body, therefore lock generally can only be controlled security door at the locking point of both sides up and down in, its advantage is simple in structure, certain tamper-resistant function is arranged, but its weak point is to play the pick-proof effect at two side positions up and down, its left and right sides pick-proof effect is poor, usually the thief then often sets about from left and right sides door body, and existing security door has only the limit lock in the left and right sides, locking point is few, and anti-theft effect is poor.

The purpose of this utility model be to overcome the deficiencies in the prior art and provide that a kind of good anti-theft effect, locking point are many, the locking mechanism of novel structure, easy to operate security door.

The purpose of this utility model is achieved in that by the guide peg of middle lock, middle lock control, locking point to be formed, at door body internal upper part and bottom the turning joint of T shape is installed all, the middle part of T shape turning joint is a fulcrum, be fixedly mounted on the body, T shape turning joint upper end bar links to each other with the guide peg of Men Tiyi side, T shape turning joint bottom bar and door body opposite side guide peg link to each other, T shape turning joint middle-end bar links to each other with the guide peg of middle lock control, the guide peg head is locking point.

The utlity model has following advantage:

1, key is few, and the lock point is many, and this door makes full use of mechanical drive principle, only just can open simultaneously up and down or the locking door leaf with a key, reduces unnecessary opening program.

2, locking is firm, and theftproof performance and survivability are strong, because peripheral movable tapered end reaches 17, fixedly tapered end is six, and under locking states, theftproof performance reaches fully and surpasses national standard.

3, open flexibly and since middle lock and locking point guide peg dexterously with the combining of T shape turning joint, make a limit around tapered end capable of expansion and contraction, light and flexible.

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

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

As shown in Figure 1, the utility model is made up of guide peg 2, the locking point 3 of middle lock 1, middle lock control, at door body internal upper part and bottom T shape turning joint 4 is installed all, the middle part of T shape turning joint is a fulcrum 5, be fixedly mounted on the body, T shape turning joint upper end bar 6 links to each other with the guide peg of Men Tiyi side, and T shape turning joint bottom bar 7 links to each other with the guide peg of door body opposite side, T shape turning joint middle-end bar 8 links to each other with the guide peg of middle lock control, and the guide peg head is locking point.The guide peg 2 of lock control moved up and down during lock can drive in the rotation, and the guide peg 2 of middle lock control drives the turning joint of T shape and rotates around fulcrum 5, thereby drive the guide peg side-to-side movement of the Men Tiyi side that flexibly connects with T shape turning joint upper end bar 6, also drive the guide peg side-to-side movement of the Men Tiyi side that flexibly connects with T shape turning joint bottom bar 7 simultaneously.Each guide peg head is locking point.

Claims (1)

1, a kind of locking mechanism of security door, guide peg (2), locking point (3) by middle lock (1), middle lock control are formed, it is characterized in that: T shape turning joint (4) all is installed at door body internal upper part and bottom, the middle part of T shape turning joint is fulcrum (5), be fixedly mounted on the body by fulcrum (5), T shape turning joint upper end bar (6) links to each other with the guide peg of Men Tiyi side, T shape turning joint bottom bar (7) links to each other with the guide peg of door body opposite side, T shape turning joint middle-end bar (8) links to each other with the guide peg of middle lock control, and the guide peg head is locking point.

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