WO2000014367A1

WO2000014367A1 - Cylinder lock

Info

Publication number: WO2000014367A1
Application number: PCT/CN1999/000137
Authority: WO
Inventors: Zhenhua Pan
Original assignee: Beijing Liangzi Locks Industry Co. Ltd.
Priority date: 1998-09-08
Filing date: 1999-09-06
Publication date: 2000-03-16
Also published as: AU5615599A; CN1277649A

Abstract

A cylinder lock consists of a cylinder core (2), a lock housing (3) and tumbler pins (1). Waisted portions (5) are formed on the side of the tumbler pins (1). A side bar (10) and lugs (11) in a groove (8) are extended axially in a peripheral part of the cylinder core (2), springs (6) are on the end opposite to the key insertion end of the pins (1), other springs are provided on both sides of the side bar (10), there is a recess (9) at a point corresponding to the groove (8) in the lock housing (3), at least two waisted portions (5) are formed on the pins (1), the waisted portions (5) at least consists of one waisted portion (5) and one waisted portion (4) which is shallower than the portion (5).

Description

FIELD OF THE INVENTION The present invention relates to a lock having a novel structure. Specifically, the present invention relates to a lock having a structure completely different from that of the lock in the prior art, and belongs to the technical field of locks. BACKGROUND OF THE PRIOR ART In the prior art, the most typical is a ball lock. The method of opening the ball lock is to use a combination of the height difference of a group of balls and the height of each key of the key to make the joint between each ball and the top pillar above it. It is at the seam of the lock cylinder and the lock shell to open the lock.

The disadvantage of the marble lock described in the prior art is that the combination of the length difference of the marble and the high-level difference of the key tooth forms an open and locked state. Therefore, all locks of the marble type can be used in a keyless situation by using multiple methods. Technically on. OBJECTS OF THE INVENTION The object of the present invention is to overcome the defects of a ball-type lock, and to provide a lock with a novel structure that can prevent a universal key and technical opening. The purpose of the present invention can be briefly described as follows: The lock of the present invention is composed of a lock cylinder, a lock core shell and a marble, and a lock rod is provided at the joint between the lock cylinder and the lock core shell. The contact of one side of the locking rod with the insert allows the insert to be cut into the card slot provided on the marble, so that the lock according to the present invention can be opened or closed. BRIEF DESCRIPTION OF THE DRAWINGS The following is a description of the drawings of the present invention. Through the following description and the following detailed description, the principle and structure of the present invention can be more clearly understood, wherein: FIG. 1 is a cross-section of a lock according to the present invention when a key is inserted. Illustration.

Figure 2 is a cross-sectional view of a lock cylinder according to the present invention;

Figure 3 is a schematic diagram of several inserts used by the lock of the present invention; Figure 4 is a diagram of the marbles and inserts in the lock of the present invention at different positions

Schematic

Figure 5 is a comparison diagram of the marbles of the lock according to the present invention;

Figure 6 is the arrangement of the marbles in the lock according to the present invention in the normal state and when opened

Figure;

FIG. 7 is a sectional shape view of the key of the lock according to the present invention; detailed description is as follows: the reference numerals of the components of the above-mentioned drawings of the present invention: marble 1, lock cylinder 2, lock core shell 3, card slot 4, 5, spring 6, Boundary line 7, Locking slot 8, Locking slot 9, Locking rod 10, Insert 1 1, Shift fork 12, Fixing cover 13, Drill cover 14, Drill cover 15, Key 16, Pin 17, Shoulder 18 ， False shoulder 19.

The principle structure of the lock according to the present invention is described in detail below:

FIG. 2 is a schematic cross-sectional view of a lock head of the lock according to the present invention. As can be seen in the figure, when the lock cylinder 2 rotates, the locking rod 10 and the trapezoidal locking groove 9 contact the slope, and the pointing marble generated by the slope of the trapezoidal locking groove 9 The force of 1 pushes the insert 1 1 into the slot 4 or 5 of the bullet 1. At this time, the bullet 1 can only move within the range of the slot. To insert the piece beyond the shoulder 18 of the bullet 1 (see the attached picture) 5) To enter another card slot, the only condition is to abandon the rotation force of the lock cylinder 2. The top of the insert 1 1 exits the card slot, and then the bullet 1 is moved, and the lock cylinder 2 is re-rotated, and the insert 1 1 can enter the other slot. A slot.

In the non-open state of the lock according to the present invention, the marbles are parallel, and their respective real grooves are staggered. See FIG. 6. The unlocking condition of the lock according to the present invention is to use the level difference of the keys to make all The real grooves of the marbles are arranged in a straight line, as shown in FIG. 7, so that when the lock cylinder 2 rotates, the lock rod 10 and the trapezoidal lock Slot 9 slope contact, trapezoidal locking groove 9 The component of the slope 1 directed to the pin 1 pushes the insert 1 1 into the true slot of all the pins. When the outer surface of the lock rod 10 completely enters the boundary line 7, the lock rod no longer faces the lock cylinder. The rotation of 2 generates resistance, and the lock cylinder 2 can rotate and open the lock. When the lock cylinder 2 returns to its original position, the insert is affected by the spring, and the insert and the locking rod are ejected. The marble can move up and down, and the key can be pulled out.

The lock according to the present invention has a high performance against technical opening, because the lock according to the present invention is provided with at least two above-mentioned marbles, and each marble is provided with at least two card slots, one of which is It is a true slot, and the other is a fake slot. Moreover, the real slots of at least one of the marbles are opposite to the real slots of the other marbles (see FIG. 5). Therefore, when the lock according to the present invention is technically opened, When the lock cylinder is rotated by a certain angle with a tool, the locking rod 10 is stressed, and the insert 11 is moved in the direction of the marble, and then the tool is used to move the first marble, as shown in Figure 4, the opener may rely on experience and To understand the structure of the lock according to the invention, the real slot of the first marble is aligned with the insert piece. In order to prevent the marble from returning to the position, the top of the insert piece needs to be cut into the slot. At this time, the opener needs to use a tool to Move the second marble. Because the true slot of the second marble is opposite to the true slot of the first marble, when the second marble is moved, the fake groove of the marble must first meet the insert. 1 1, Due to the inward pressure of the insert 11, when the dummy slot is moved to the top position of the insert, the insert is inserted into the dummy slot of the marble, and the lock cannot be opened, even if the opener realizes the second marble The dummy slot is inserted. If the technical opener wants to withdraw the top of the insert that has entered the dummy slot to re-enter the real slot of the marble, it is necessary to remove the top of the insert from the outer edge of the marble, because the diameter of each marble is the same. Therefore, at the same time, the outer edge of the first marble that had found the true groove was withdrawn at the same time. Due to the spring, the first marble was restored to its original position, and the entire opening process failed.

In theory, due to the tolerance, in the case of only two marbles, the second marble and the insert may detach and the insert may still be inserted in the real groove of the first marble. Therefore, the present invention preferably is Use at least 4 marbles (where the real grooves of at least 1 marble are opposite to the real grooves of other marbles, preferably the real grooves of two marbles are opposite to the real grooves of other marbles); Marbles (of which, at least 1 marble's real slot and other marbles The true slot positions of the three bullets are opposite, and the true slot positions of the three marbles are preferably opposite to the true slot positions of other marbles. Of course, the present invention can also use more marbles and more combinations, for example, the true slots and fake slots of each marble. The positions are randomly arranged, and the marbles use more than two card slots. For example, three card slots are used, and two of them are fake slots.

Regarding the locking rod and the insert, another variation is to use one body, for example, as shown in FIG. 3 (b), the locking rod and the insert in this form are P-shaped.

As for the insert, an overall insert may be used, as shown in FIG. 3, or more than one insert may be used. For example, the insert is divided into two and comes into contact with several marbles, respectively.

With regard to the gall bladder groove, its shape is similar to a trapezoid, and it can also adopt an arc shape, and any shape suitable for the needs of the present invention.

As for the key, the cross-section of a typical key used in the lock according to the present invention is shown in FIG. 7 and has a “mountain” shape. The teeth are longitudinally made along the protruding part in the middle. The concave-convex part of the key and the concave-convex part of the key cooperate with each other; however, the key that can be used in the present invention has other deformations, as long as the shape of the key that can match the keyhole and marble of the present invention is within the protection scope claimed by the present invention.

The scope of the lock described in the present invention can be seen in the claims, but it is not limited to this. Changes in the structure and components of the lock described in the present invention under the concept of the present invention should fall within the protection scope of the present invention.

The following are examples, which are used to illustrate the present invention, but not to limit the present invention. Example 1

The working principle of the lock according to this embodiment is as described above. See FIG. 1, 2, 3 (a), and 6. In this embodiment, six marbles shown in FIG. 6 are used, of which three marbles are The real slots are opposite to the real slots of the other three marbles. Each marble uses two card slots. The locking rod is in the form of Figure 3 (a). The difference from Figure 6 is that the convex slot is not used in the card slot. Shoulder, according to the above principle, when a corresponding key is inserted, the lock is opened, otherwise it is difficult to open. Example 2 The working principle of the lock according to this embodiment is as described above. See FIG. 1, 2, 3 (a), and 6. In this embodiment, six marbles shown in FIG. 6 are used, of which three marbles are The real slots are opposite to the real slots of the other three marbles. Each marble uses two card slots, and the locking rod is in the form of Figure 3 (a), which corresponds to Figure 6, in the card slot, or in the true slot. In the groove, or in a fake groove, a false shoulder 19 (see FIG. 5) is randomly used to increase the difficulty of technical opening. Example 3

Others are the same as those in Embodiment 2 except that the integrated locking rod and the insert shown in Fig. 3 (b) are used.

The advantages of the present invention are: the technology of changing the existing marble locks is not to combine the length difference of the marbles with the teeth of the key; the opening of the lock according to the invention must be that the slots on several marbles are arranged in a straight line for Insert 1 1 withdraw.

The lock bar of the lock according to the present invention relies on its own resistance to crush deformation to prevent external force from forcibly rotating, and the resistance is large, while the ball lock uses only the radial shear strength of the top post to resist the strong rotation of the external force. The force is much smaller than the resistance of the lock according to the invention.

Claims

1. A lock with a new structure, characterized in that the lock comprises a lock cylinder 2, a lock core shell 3, and a marble 1. A lock groove 5 is provided on the side of the marble 1, and a side of the lock cylinder 2 is provided. Spring lock slot 8, lock lock slot 8 has lock rod 10 and insert piece 11, spring 6 on the non-keyed end of the bullet 1, springs are also provided on both sides of the lock rod, A lock slot 9 is provided at a position corresponding to the lock lock slot.

2. The lock according to claim 1, wherein at least two marbles are provided in the lock;

3. The lock according to claim 1, wherein four locks are preferably provided in the lock;

4. The lock according to claim 1, wherein six locks are preferably provided in the lock;

5. The lock according to any one of claims 1 to 4, characterized in that the marble is provided with at least two card slots, at least one true slot and one false slot;

6. The lock according to claim 2, wherein the true slot position of at least one of the marbles is opposite to the true slot position of the other marble;

7. The lock according to claim 4, wherein the true slot positions of three of the marbles are opposite to the true slot positions of the other three marbles;

8. The lock according to any one of claims 1 to 7, characterized in that in said marble, at least one of the slots of the marble is provided with a false shoulder 19;

9. The lock according to claim 1, wherein the insert and the locking rod are separated;

10. The lock according to claim 1, wherein the inserting piece and the locking rod are integral and P-shaped;

11. The lock according to claim 1, wherein said inserting piece is at least one integral piece;

12. The lock according to claim 1, wherein the locking groove is trapezoidal;

13. The lock according to claim 1, wherein the locking groove is arc-shaped.