CN102889026A - Clamping type mechanical antitheft lock - Google Patents

Abstract

The invention relates to a snap-in mechanical anti-theft lock, which includes a lock body, a lock core, a transmission mechanism, a lock tongue, a lock bolt, and a supporting key. There is mainly a protective ring between the lock body and the lock core, and one end of several sliding pieces is inserted into the protection ring. In the ring, there is an opening on the upper edge of the sliding piece. Before the lock is unlocked, the pin of the lock cylinder has no contact with the sliding piece. When the lock cylinder rotates initially, it contacts the sliding piece and pushes the sliding piece to move to the upper edge of each opening to form a straight line. After that During the rotation of the lock cylinder, the pin in the lock cylinder is out of contact with the sliding piece first, and then the pin A fixed on the cam at one end of the lock cylinder drives the blocking plate to move downward and is stuck in the opening of the sliding piece, so that the lock cylinder can Continue to rotate, and drive the swing rod, lock bolt, dead bolt, etc. to move in a fixed order to complete the unlocking action.

Description

A card position type mechanical anti-theft lock

technical field

The invention relates to a mechanical anti-theft lock, in particular to a snap-position type mechanical anti-theft lock.

Background technique

A mechanical lock is generally composed of a lock body, a lock cylinder, a transmission mechanism, a lock tongue, and a lock bolt. The lock cylinder is the key component, which contains the lock cylinder tumbler group. The movement and movement range of the pins of the lock cylinder are determined by the key. Only when the correct key is encountered, the pins of the lock cylinder can move to the correct position, and the lock cylinder can rotate or move in other forms, and then drive the transmission mechanism to complete the unlocking action. The mechanical locks on the market, no matter how they change, most of the locks have a common feature in their design, that is, before the unlocking mechanism is activated, each pin group (or parts such as blades) and other related unlocking actuators are always in contact with each other or have some contact with each other. This contact state makes it possible for technology to open the lock.

In order to improve the protection level of anti-theft locks, most designers try their best to complicate the internal structure of the lock cylinder, strive to be novel and unique, and increase the number of keys. The disadvantages are that the accuracy requirements and manufacturing difficulty are increased, and the cost is also increased. Doing so may reduce the mechanical strength, and special high-quality materials are required to improve the mechanical strength to prevent damage. There are also locks with strong anti-technical opening ability, but the unlocking operation process is more loaded down with trivial details.

Contents of the invention

The purpose of the present invention is to provide a locking type mechanical anti-theft lock. The pins of the lock cylinder are in contact with several sliding pieces first, and then pushed to move and locate them, and then disengage from them to complete the positioning, so that the pins of the lock cylinder are inserted into the position of the blocking plate when the plate moves downward. Some slide openings and subsequent unlocking actions are not in a certain contact state with other unlocking actuators to prevent technical unlocking.

In order to achieve the above object, the present invention has the following technical solutions:

A locking type mechanical anti-theft lock of the present invention comprises a lock body, a lock cylinder, a transmission mechanism, a deadbolt, a lock bolt, and a matching key. The lock cylinder is installed in the center of the lock body, and the end of the lock cylinder is connected to the transmission mechanism. The lock tongue and the lock bolt are located on the upper part of the lock body, and the matching key is used to insert the keyhole to unlock the lock. A protective ring is arranged between the lock body and the lock core. There is a blocking plate between them, the lock cylinder passes through the blocking plate, and is movably connected with the blocking plate, and there are blocking plate guide shafts on both sides of the lock body, and the blocking plate guide shaft passes through the blocking plate, and is movably connected with the blocking plate, preventing There is a slide guide shaft between the plate and the lock body, and the two ends of the slide guide shaft are fixed on the lock body. There are several sliders with openings on the upper edge. The protruding ends of the sliders are inserted into the protective ring. The guide shafts of the sliders pass through the sliders. The guide shafts are used to support the sliders. A reset extension spring is arranged between the slide plates, and a top spring is arranged between the lock body and the blocking plate.

Wherein, the blocking plate is a frame-shaped structure, two rectangular holes are arranged at the edge of one of the faces of the frame-shaped structure, and a hole for driving the movement of the blocking plate is arranged in the center of the frame-shaped structure, and the lower parts of the other two faces of the frame-shaped structure are Each has a groove, and the other two surfaces are perpendicular to several sliding pieces.

Wherein, the transmission mechanism includes a cam and a driving rod, and three dial pins are arranged on the cam, the cam is connected to the lock core through a spline connection, and the driving rod is hinged to the lock core.

Wherein, the openings on the upper edges of the plurality of sliding pieces correspond to the blocking plates.

Owing to taking above technical scheme, the advantage of the present invention is:

1. In the present invention, the pin in the lock cylinder and the unlocking actuator can be separated from the direct connection in time, so that various unlocking tools cannot function.

2. The lockset of the present invention cannot be opened even if the lockhole is drilled.

3. The locking and unlocking process of the present invention is easy to operate and is applicable to people of all ages.

4. Each component of the present invention is easy to process and manufacture, has low cost, and is suitable for mass production.

5. The present invention is not limited to anti-theft doors, and can also be used in other locked environments such as safes and vaults.

Description of drawings

Fig. 1: the assembly schematic front view of the present invention;

Fig. 2: assembly schematic top view of the present invention;

Fig. 3: A schematic front view of the assembly of the blocking plate, the lock cylinder and the pin A of the present invention.

Among them: 1: lock body, 2: lock cylinder, 3: lock hole, 4: cam, 5: lock cylinder pin, 6: pin B, 7: lock bolt pull plate, 8: bolt pull plate, 9: lock Tongue push button, 1 0: lever, 11: pin C, 12: pin spring, 1 3: pin A, 14: blocking plate, 15: blocking plate guide shaft, 16: reset slide plate, 17: sliding piece Guide shaft, 18: sliding plate, 19: protective ring, 20: top spring, 21: turning shaft, 22: turning handle, 23: driving lever rotating pin, 24: reset extension spring.

Detailed ways

The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

The click-type mechanical anti-theft lock shown in Figure 1, Figure 2, and Figure 3:

1. The key has tooth flowers on both sides and a column in the middle. There are 5 positions on each side of the tooth flower design, a total of 10 positions. The maximum height difference between each position of this scheme is 2.5mm, and the step difference is 0.5mm. There are 6 optional heights for each position: 0.0mm, 0.5mm, 1.0mm , 1.5mm, 2.0mm, 2.5mm, the key amount is 6 to the 10th power, that is, 60.46 million.

2. The lock cylinder 2 is located at the center of the lock body 1 and is rotatable, and ten lock cylinder pins 5 are installed therein. There is a protective ring 19 around the lock cylinder 2, which is fixed on the lock body 1. The protruding ends of the two sets of slides 18 are inserted into the protective ring 19, and each set of slides moves horizontally through two slide guide shafts 17. . There is an opening at the upper edge of each sliding piece 18, and the position matches the height of the key "tooth flower". When each opening moves to be flush with each other, that is, when the horizontal direction is in a straight line, the lateral inserting plates on both sides of the blocking plate 14 can be inserted into the In the opening, a groove is respectively arranged at the root of the lateral insertion plate on both sides of the stop plate 14, which matches with the upper edge of the reset slide plate 16 when it moves down, so as not to hinder the movement of the stop plate 14. The reset slide plate is guided by the slide guide shaft 17 and performs linear reciprocating motion. When designing the position and size of the slide guide shaft 17, the slide plate 18 can only move to both sides and cannot move inward, that is, it will not affect the lock cylinder 2 Rotation, slide plate 18, reset slide plate 16 and lock body 2 front and rear steel plates are assembled by spacers. When the cam 4 rotates, the reset slide plate 16 is pushed to both sides by the straight edges on both sides, so the movement of the slide plate 18 can not be prevented. 18 Reset. Stopping plate 14 is a frame structure, wherein there are two rectangular holes at the both side edges of one surface, and stopping plate guide shaft 15 is a guide to limit its linear movement range up and down. The front and rear steel plates of the lock body are in assembly relationship) to limit the lateral displacement of the plate 14. The cam 4 is fixed on the lock cylinder 2 by means of a spline connection, and the cam is fixed with a dial pin A 13, a dial pin B 6 and a dial pin C11. After the cam 4 rotates at an angle of 23 degrees, the dial pin A 13 pushes the blocking plate 14 downward Move, (an irregular square hole is arranged in the middle of preventing plate 14, and the bottom of the square hole is a curve, and when dial pin A 13 does circular motion, promotes it to move downward), dial B 6 promotes driving lever 10 to swing, and driving lever 10 Push the lock bolt pull plate 7 to move back and forth and later promote the dead bolt pull plate 8 to move, and the dial pin C11 is used to push the driving lever 10 to swing in the opposite direction. One end of top spring 20 is connected on the lock body, and the other end is connected on the blocking plate, and the effect is to make the blocking plate 14 return in time when the supporting key rotates and resets and is extracted. The driving lever 10 is hinged with the lock core 2 and can swing freely.

3. Unlocking process: Under static conditions, the pin 5 of the lock cylinder does not contact the sliding piece 18. It contacts the sliding piece 18 and pushes it to move to complete the positioning action when it is inserted into the supporting key and rotates at an angle of 23 degrees. After each sliding piece 18 moves, each sliding piece The openings of the pieces are all on the same straight line in the horizontal direction. During the subsequent rotation of the lock cylinder 2 at an angle of 60 degrees, the lock cylinder pin 5 is out of contact with the sliding piece 18 first, and the dial pin A13 pushes the blocking plate 14 through the curved part of the irregular square hole. Move downwards so that the lateral inserting plates on both sides of the blocking plate 14 can be inserted into the opening, then the lock cylinder can continue to rotate, and then the driving lever 10 swings, the lock bolt pull plate 7 moves and the deadbolt pull plate 8 moves, and then the opening is realized. locks. When the key is incorrect, after the slides are moved, the openings of the slides cannot be on the same straight line in the horizontal direction, and the horizontal inserts on both sides of the blocking plate 14 cannot be inserted into the opening, and the curve at the lower part of the central irregular square hole of the blocking plate 14 The position will prevent the dial pin A13 from doing circular motion, and the lock cylinder 2 cannot continue to rotate, that is, the lock cylinder 2 can only rotate at an angle of 23 degrees, and the lock cannot be opened.

4. The lever rotation pin 23 is fixed on the lower part of the lever 10. The door can be unlocked or locked by rotating the rotary handle 22 to push the lever rotation pin 23 to swing and the lever 10 to swing in any case. People locked inside the house cannot open the lock. There is an opening below the inner side of the protective ring 19, so that there is no hindrance when the turning handle 22 rotates.

5. The lock core of the present invention is not exposed, and a lock hole (thickness 2mm) with the same shape as the lock core lock hole is processed on the outer steel plate of the lock body 1, forming an angle of 23 degrees with the horizontal line. The lock hole of the lock core can be rotated together with the key; the lock hole on the steel plate of the lock body cannot be rotated, so the neck of the key is designed as a cylinder, and the key must be reset before it can be pulled out after rotation. Reset to ensure the safety of the lock.

6. The process of locking the door outside is to insert the key, reversely rotate 50 degrees to complete, then reset and pull out the key; the deadbolt push button 9 is fixedly connected with the deadbolt pull plate 8, and the deadbolt push button 9 can be moved inside the house to realize The unlatching of dead bolt: Utilize the reciprocating movement of lock bolt pull plate 7, its right end can be extended and be connected on the transmission mechanism that drives upper and lower lock points to open and lock, thereby realizes multi-point locking.

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. All the implementation manners cannot be exhaustively listed here. All obvious changes or variations derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims (4)

1. plece-cliped type mechanical anti-theft lock; comprise lock body; lock core; transmission mechanism; dead bolt; locking bolt; matched key; described lock core is installed on the lock body center; lock core end connection for transmission mechanism; described dead bolt; locking bolt is positioned at lock body top; described matched key is used for inserting lockhole unblanks; it is characterized in that: between lock body and lock core, be provided with a protection ring; described protection ring is fixed on the lock body; be provided with one between protection ring and the lock body and stop plate; lock core passes the prevention plate; and be flexibly connected with stoping plate; the lock body both sides are provided with and stop the plate axis of guide; the described prevention plate axis of guide passes the prevention plate; and be flexibly connected with stoping plate; stop between plate and lock body and be provided with the slide plate axis of guide; described slide plate axis of guide two ends are fixed on the lock body; stop the plate outside to be provided with the slide plate that resets; this reset slide plate and the flexible connection of the slide plate axis of guide are provided with top edge with some slide plates of opening in the slide plate that resets, this some slide plates protruding end inserts in the protection ring; the slide plate axis of guide passes some slide plates; the slide plate axis of guide is used for supporting some slide plates, and the slide plate axis of guide is provided with reset tension spring with resetting between the slide plate, be provided with a top spring between lock body and prevention plate.

2. a kind of plece-cliped type mechanical anti-theft lock according to claim 1, described prevention plate is frame-shaped construction, the edge of one of them face of frame-shaped construction is provided with two rectangular openings, the central authorities of this face are provided with the hole that stops plate to move for driving, two other basifacial of frame-shaped construction respectively has a groove, and described two other face is mutually vertical with some slide plates.

3. a kind of plece-cliped type mechanical anti-theft lock according to claim 1, described transmission mechanism comprises cam and driving lever, and cam is provided with three fingers, and this cam is connected on the lock core by the spline joint mode, and driving lever and lock core are hinged.

4. a kind of plece-cliped type mechanical anti-theft lock according to claim 1, the opening of described some slide plate top edges with stop plate corresponding.

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