CN2198350Y - Anti-pry device for door - Google Patents

Abstract

The utility model relates to an anti-prying device for doors, comprising an iron tube rod, a numbering lock, a built-in lock, a clamping hook, a clamping gear, etc. The utility model which is suitable for the safety and insurance of inwards opened doors has the advantages of convenient installation and use, low cost and high safety factor.

Description

Anti-pry device for door

The utility model is a kind of safety device, especially for the interior anti-picking device of opening door.

Present family expenses door is much still locked with a lock or two locks, most doors of still inwardly opening, and its pick-proof, anti-anti-poor ability, the fastness of door is poor, does not have the safety precaution effect.Though the user installation that has at present anti-forcing open the door, it belongs to the many places locking method, the difficulty of increased sled, dialling, but still can not prevent from the problem of " technology unlocking " to still have trouble and worry after " working clan " leaves home.

Task of the present utility model provides opens the door anti-picking device in a kind of, reaches the safe and reliable purpose of door.

The purpose of this utility model is achieved in that it comprises a built-in lock and a combination lock that is contained on the door beam that is contained in reveal, it is characterized in that it has an iron pipe thick stick, the right(left)end of iron pipe thick stick is connected on the doorframe of the right side (left side) with swivel joint, movable block and the balancing weight that matches with combination lock is equipped with at iron pipe thick stick middle part, with built-in lock dead bolt corresponding section a vertical through hole arranged.The clamp that a left side (right side) doorframe has been installed big bent plate and has been attached thereto; Original knob changes a cam handle on the built-in lock of a door left side (right side) end, has linked a grab that vertically penetrates the iron pipe thick stick on dead bolt.

Used combination lock has a fixed muffle and three quills, and each fixes a chuck that three breach are arranged on each quill, and 10 positions (holding screw nest) are arranged on each sleeve, can chuck for installing.

Said swivel joint is hinged with pin by two of male and females.

Said cam is mounted on the controlling organization of dead bolt.

Said grab is the rear portion that is contained in dead bolt, and it comprises retouches bar, extension spring and grab.

Said big bent plate it to wrap in lock tongue slot outer and be connected as a single entity with clamp.

Also be equipped with on doorframe and bump the pearl switch, reveal has collision block, and bumps the circuit that has power supply, alarm bell and warning lamp to constitute that pearl joins.

Principle of the present utility model is: after closing door, alarm bell is noiseless, warning lamp is unglazed, prove the door close tight, at this moment, dead bolt inserts in the lock tongue slot, the cam handle accumbency, the iron pipe thick stick falls into clamp, and grab travels forward with dead bolt, be hooked in the hole of iron pipe bar, the block at combination lock place breaks away from the chuck slot of combination lock, and twist combination lock disorderly this moment, can leave away.When needs open the door, earlier combination lock is aimed at, made the groove of three chucks overlapping, use key turn built-in lock dead bolt again, cam handle rotates with key simultaneously, the iron pipe thick stick is lifted, make block enter the chuck slot of combination lock, the iron pipe thick stick is held up by cam and runs off Card trough, this moment, grab retreated with dead bolt, deviate from from the hole and prop up the iron pipe thick stick that will fall, door is opened, and the iron pipe thick stick rotates around rotating movable joint.

The utility model has the advantages that: because built-in lock and combination lock are housed, condition each other, increased safety factor, particularly its combination lock can constitute 1000 sets of numbers, good confidentiality; Owing to an iron pipe thick stick is arranged, can effectively prevent to prize built-in lock and the anti-timber of opening; Because alarm bell, alarm lamp device are housed, it is tight to prevent to close the door, can be to the warning effect of having opened the door unusually yet.

Details of the present utility model is provided by following examples and accompanying drawing thereof:

Fig. 1 is the utility model opening structural representation.

Fig. 2 is the utility model closed condition structural representation.

Fig. 3 is the utility model swivel joint structural representation.

Fig. 4 is the lateral view of Fig. 3.

Fig. 5 is the combination lock structural representation.

Fig. 6 is the utility model hook structure schematic diagram.

Fig. 7 is big bent plate of the utility model and clamp structural representation (unlatching).

Fig. 8 is big bent plate of the utility model and clamp structural representation (closing).

Fig. 9 is the utility model alarm bell, warning lamp electrical schematic diagram.

1-5 with reference to the accompanying drawings, the utility model comprises built-in lock 8 that is contained in a left side (right side) reveal and the combination lock 3 that is contained on the beam, its combination lock comprises a fixed muffle 27, three quills 28, the afterbody of each quill is fixed a chuck 29 with screw, ten fixedly positions of chuck 29 are arranged on quill 28, can adjust arbitrarily.Iron pipe thick stick 2 right sides (left side) side is connected on the doorframe with swivel joint 1, at iron pipe thick stick 2 middle parts a block 5 is arranged, and it can slide on iron pipe thick stick 2, adjusts the position of block 5, and its block hook 4 can be entered in the chuck slot of combination lock 3 easily.Built-in lock 8 is special, except that inner retaining mechanism was identical with conventional built-in lock, there was a cam 7 at the handle place coaxial with its keyhole, and the cylindrical of cam 7 props up the iron pipe thick stick 2 of level, when the bossing of cam 7 propped up iron pipe thick stick 2, iron pipe thick stick 2 was lifted.Porose on lock housing, a grab 9 is hinged on the middle part of dead bolt.The 6th, balancing weight.

With reference to the accompanying drawings 6, grab 9 has one to retouch bar 14, and its lower end connects extension spring 12, extension spring 12 is fixed on the lock housing by connecting rod 13, the middle part of retouching bar 14 is hinged on the dead bolt 15, and the upright opening 16 of iron pipe bar 2 is passed on top, and the dogging of grab 9 is in the inside in hole (locking) or below (unlatching).

With reference to the accompanying drawings 3,4, the little bent plate 17 of swivel joint 1 usefulness is fixed on the doorframe, and it comprises movable joint public affairs 18, movable joint mother 19, and both plug together mutually, and is hinged with pin 20.

7-8 with reference to the accompanying drawings, on (right side) the side door frame of a left side, big bent plate 21 has been installed, it wraps in the lock tongue slot outside of built-in lock, be fixed on the wooden door frame with bolt 11 and screw 10, a clamp 22 is also fixed in the outside at big bent plate 21, and iron pipe thick stick 2 drops on when locking state in clamp 22 and the groove between the bent plate 21 greatly; When opening, cam 7 holds up iron pipe thick stick 2, makes it surmount groove, can remove with door.

With reference to the accompanying drawings 9, the utility model also is equipped with alarm bell, alarm lamp device, it comprises that is bumped a pearl switch 23, and it is contained on the doorframe, and power supply and alarm bell 24, warning lamp 25 are contained in indoor, there is a collision block 26 position of bumping pearl 23 in the frame correspondence of door, after shutting up the door carefully, it compresses mutually with bumping pearl, circuitry cuts, when not shutting, circuit is connected.

The utility model is through sampling test, and is easy to use, safe and effective.

Claims (7)

1, a kind of door anti-picking device, it comprises the built-in lock and the combination lock that is contained on the door beam that are contained in reveal, it is characterized in that it has an iron pipe thick stick, the right-hand member of iron pipe thick stick is connected on the right doorframe with swivel joint, the movable block and the balancing weight that match with combination lock are housed on the iron pipe thick stick, a vertical through hole are being arranged with built-in lock dead bolt corresponding section; The clamp that the left-hand door frame has been installed big bent plate and has been attached thereto; The knob that is equipped with is a cam on the built-in lock of door left end, with the dead bolt vertical grab that penetrates the iron pipe thick stick that has been connected.

2, door anti-picking device according to claim 1 is characterized in that: its combination lock comprises a fixed muffle and three quills, and ten positions are arranged on each quill, can fix a chuck on any position.

3, door anti-picking device according to claim 1 is characterized in that: said swivel joint is hinged with pin by two of male and females.

4, door anti-picking device according to claim 1 is characterized in that: the control that said cam is mounted in dead bolt mechanically.

5, door anti-picking device according to claim 1 is characterized in that: said grab is the rear portion that is contained in dead bolt, and it comprises retouches bar, extension spring and grab.

6, door anti-picking device according to claim 1 is characterized in that: said big bent plate it to wrap in lock tongue slot outer and be connected as a single entity with clamp.

7, door anti-picking device according to claim 1 is characterized in that: also be equipped with on doorframe and bump the pearl switch, reveal has collision block, and bumps the circuit that has power supply, alarm bell and warning lamp to constitute that the pearl switch is connected.

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