CN205078049U - Padlock of simply preventing burglary - Google Patents

Abstract

The utility model mainly discloses a simple anti-theft padlock, which comprises a lock core, a lock beam, a lock tongue, a lock body and a key. A pin hole and a key hole are arranged in the lock core, and a reset spring and an inner pin are arranged in the pin hole. The cross-section of the inner tumbler is rectangular, and an insertion hole is arranged on it, and the shape of the part where the key is inserted into the lock body is wavy. When locking, all the jacks are located on a straight line, and the inner pin or outer pin is stuck between the lock cylinder and the lock body so that the lock cannot be opened; when unlocking, when the key is inserted, all the contact surfaces of the inner and outer pins are located between the lock cylinder and the lock. At the body gap, the lock can be opened after turning the key. Since the sockets are not in a straight line when the lock is opened, only a small part of the key socket is exposed and cannot be opened directly by foreign objects, and the front end of the key is wave-shaped, which has the advantages of good anti-theft performance, simple structure, and the key is not suitable for duplication.

Description

A simple anti-theft padlock

technical field

The utility model relates to the technical field of locks, in particular to a simple anti-theft padlock.

Background technique

At present, padlocks have been widely used in daily life. The general padlock structure includes a lock body, a lock cylinder, a deadbolt and a lock beam. One end of the inner pin is located in the keyhole. Serrated lock teeth, but this type of padlock has certain disadvantages. The pin end is exposed and the stroke is short. The pin can be opened directly by foreign objects (wire hooks, tin foil, etc.), poor anti-theft performance, and the key is easy to be copied.

In view of the above existing problems in the prior art, it is urgent to provide a padlock with good anti-theft performance, safety and reliability.

Contents of the invention

In order to make up for the deficiencies of the prior art, the utility model provides a simple anti-theft padlock, which solves the problems that the pins in the conventional padlock are directly touched and opened by foreign objects, the anti-theft performance is poor, and the key is easily copied.

The technical solution adopted by the utility model to solve the technical problem is: a simple anti-theft padlock includes a lock core, a deadbolt, a lock beam, a lock body and a key, and the lock core is provided with a pin hole and a key hole, and the pin hole A return spring and an inner pin are arranged inside, wherein: the inner pin is provided with a socket, the section of the inner pin is rectangular, and one end of the inner pin is provided with a return spring, and the key of the padlock is inserted into the front end of the inner pin in a wave shape.

The sockets are all located on a straight line when the padlock is locked, and all the sockets are not located on the same straight line when the padlock is opened.

A limiting hole is provided at the bottom of the key hole, and the limiting hole is a circular through hole.

The outer end of the limiting hole is rounded.

The top of the key is provided with a cylinder, and one end of the cylinder is provided with an arc chamfer.

A groove is arranged on the outside of the key hole.

One end of the key insertion part is provided with a blocking piece that can be inserted into the groove.

The technical effect of the utility model: since the jacks are not on a straight line when the lock is opened, only a small part of the jacks are exposed and cannot be opened by foreign objects directly, and the front end of the key is wave-shaped, which has good anti-theft performance, simple structure, and the key is not suitable for being opened. Advantages of copying.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the whole sectional view of the utility model;

Fig. 2 is the overall schematic diagram of key;

Fig. 3 is an overall sectional view of the key fully inserted into the keyhole.

In the figure 1. lock cylinder, 2. lock beam, 3. deadbolt, 4. lock body, 5. return spring, 6. inner pin, 7. key, 11. limit hole, 12. pin hole, 13. concave Groove, 14. keyhole, 61. jack, 71. cylinder, 72. catch piece.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

As shown in Figure 1, a kind of simple anti-theft padlock described in the utility model comprises a lock core 1, a lock beam 2, a dead bolt 3, a lock body 4 and a key 7, and the lock core 1 is located in the middle of the lock body 4 In the hole, the lock core 1 is provided with a pin hole 12 and a socket 61, and the pin hole 12 on the lock core 1 is provided with a return spring 5 and an inner pin 6, and the outside of the key hole 14 is provided with a groove 13.

Fig. 2 is an overall schematic diagram of the key. The front end of the key 7 inserted into the inner marble 6 is wavy. The advantage of this is that the key is not easy to be copied, and the padlock should not be directly touched and opened by foreign objects. The top of the key 7 is provided with a cylinder 71, and one end of the cylinder 71 is provided with a rounded corner, which is designed to be more convenient and accurate when the key 7 is inserted into the keyhole 14. One end of the insertion part of the key 7 is provided with a blocking piece 72 that can be inserted into the groove 13. The advantage of this design is to avoid deformation of the front end of the key 7 when the key 7 is rotated many times.

Fig. 3 is a sectional view of the front end of the key inserted into the keyhole. Combining Fig. 1 and Fig. 2, it can be seen that when the front end of the key 7 is inserted into the keyhole 14 and enters the jack 61, it will drive the inner marble 6 to move left and right in the pinhole 12. When the key 7 When the top end is inserted into the limiting hole 11 at the bottom of the keyhole 14, the catch 72 on the key is just inserted into the groove 13 outside the lock core 1, and one end of all the inner marbles 6 is located between the lock core 1 and the lock body 4. In the gap, then rotate the key 7 to complete the unlocking. When closing the lock, turn the key 7 in the opposite direction and pull out the key to get final product.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (7)

1. a Simple theftproof padlock, comprise lock core (1), lock bridge (2), dead bolt (3), lock body (4) and key (7), in described lock core (1), be provided with marble hole (12) and keyhole (14); Back-moving spring (5) and interior pellet (6) is provided with in described marble hole (12), it is characterized in that: each described interior pellet (6) is equipped with jack (61), interior pellet (6) cross section is rectangle, and interior pellet (6) one end is provided with back-moving spring (5); Key (7) front end of this padlock is waveform.

2. a kind of Simple theftproof padlock according to claim 1, is characterized in that: the jack (61) described in during padlock locking is all positioned on straight line, and when padlock is opened, all described jacks (61) are not located on the same line.

3. a kind of Simple theftproof padlock according to claim 1, is characterized in that: described keyhole (14) bottom is provided with spacing hole (11), and spacing hole (11) is manhole.

4. a kind of Simple theftproof padlock according to claim 3, is characterized in that: the outer end of described spacing hole (11) is set to rounding.

5. a kind of Simple theftproof padlock according to claim 1, is characterized in that: described keyhole (14) outer setting fluted (13).

6. a kind of Simple theftproof padlock according to claim 1, it is characterized in that: described key top is provided with cylinder (71), cylinder (71) one end is provided with circular arc chamfering.

7. a kind of Simple theftproof padlock according to claim 5, is characterized in that: one end that described key (7) inserts lock core part is provided with the catch (72) that can insert groove (13).