CN203347352U - Lock capable of preventing key from losing and capable of being used repeatedly for many times - Google Patents

Abstract

A lock that can prevent key loss and can be used multiple times, including a lock head (1) and a lock cylinder (9). There are more than two lock head through holes (25) equidistantly above the lock head ⑼, and there are lock cores connected with the lock head through holes at an equidistant distance above the lock core ⑼ with the same number and the same diameter. Through hole (32), described lock core (9) is provided with the lock core side hole (24) that is equal to the number of through holes of the lock head and the same diameter as the lock core through hole (32) clockwise 90 ° direction on the described lock core, so A spring (2) and an upper marble (3) are set in the lock head through hole (25), a lower marble (12) is established in the described lock cylinder through hole (32), and a ball (10) is arranged between the upper marble (3) and the lower marble (2). The utility model has the characteristics of simple structure, easy processing, convenient operation, strong stability, changeable key shape and good anti-theft performance, and the key can be replaced by the user independently, and at the same time, the security is enhanced and waste is reduced.

Description

A multi-use lock against key loss

technical field

The utility model relates to the technical field of locks, in particular to a lock that can prevent key loss and can be used repeatedly.

Background technique

The tumbler lock is a common lockset and is widely used. However, in the existing locks, basically only one key matching the lock cylinder can be used. Once the key is lost or damaged, there is a huge potential safety hazard. For safety, need to change lockset in time, therefore cause great waste and inconvenience to the user. Although the existing coded lock cylinder can be replaced by different codes at will by the user to achieve the purpose of changing different keys, it has disadvantages such as complex structure, high cost, and low reliability, which cannot meet the requirements of use. Introduced in Chinese patent 201020585398.7 is a kind of changeable key lock, and there are spring, row piece, straight row piece, straight row piece fixing bar and row piece guide rod in the lock cylinder. The original key cannot be used by replacing the child key with the master key, but the master key can be encoded and unlocked, so the security is not high, and there are disadvantages such as complex structure and difficult assembly.

Utility model content

The purpose of the utility model is to provide a multi-use lock with simple structure, easy processing, convenient operation, good stability, changeable key shape, good anti-theft performance and anti-key loss.

A lock that can prevent key loss and can be used multiple times, including a lock head 1 and a lock cylinder 9, the upper part of the lock head 1 is provided with a cover plate groove 30, and a cover plate 8 is arranged in the cover plate groove 30, and the lock head 1 There are more than two lock head through holes 25 equidistantly above the lock core 9, and lock core through holes 32 that communicate with the lock head through holes and are equal in number and have the same diameter are provided equidistantly above the lock core 9. On the lock core 9, along the lock core through hole 32 clockwise 90 ° direction, there are lock core side holes 24 equal in number and diameter to the lock head through holes, and the lock head through hole 25 is provided with a spring 2 and an upper Pin 3, a pin 14 is set in the through hole 32 of the lock cylinder, and a ball 15 is arranged between the upper pin 3 and the lower pin 14.

The lengths of the two or more upper marbles 3 are different.

The lengths of the two above and below marbles 14 are different.

The advantages of the utility model anti-key loss lock that can be used repeatedly are:

1. The utility model divides the lock itself into two parts, one is the lock head, and the other is the lock cylinder. Since there are no complicated holes in the utility model, the structure is simple and easy to process;

2. The utility model can transform the ball into other shapes, such as ellipse, conical, elliptical at the upper end and conical at the lower end, and the length of the upper and lower pins can also be set arbitrarily. Every change will lead to a different shape of the key tooth, so this The shape of the key corresponding to the utility model is changeable, which is not easy to imitate;

3. If the utility model has N working holes, it can be equipped with N+1 keys. When the first key is lost, if the second key is used, the first key will automatically become invalid; When the key is used, if the third key is used, the first and second keys will automatically become invalid; and so on, when the Nth key is lost, if the N+1th key is used, the first N keys will automatically become invalid ; Therefore, it is easy to operate, strong in stability and good in anti-theft performance.

Therefore, the utility model has the characteristics of simple structure, easy processing, convenient operation, strong stability, changeable key shape, and good anti-theft performance. The key can be replaced by the user independently, and at the same time, the security is enhanced and waste is reduced.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model;

Fig. 2 is the A-A sectional schematic diagram of Fig. 1;

Fig. 3 is the structural representation of lock head;

Fig. 4 is the B-B sectional schematic diagram of Fig. 3;

Fig. 5 is the structural representation of lock cylinder;

Fig. 6 is the C-C sectional schematic diagram of Fig. 5;

In the figure, 1 is the lock head, 2 is the spring, 3-7 is the upper pin, 8 is the cover plate, 9 is the lock cylinder, 10-14 is the lower pin, 15-19 is the ball, 20-24 is the side hole of the lock cylinder , 25-29 is the through hole of the lock head, 30 is the cover plate groove, 31 is the cylindrical cavity, 32-36 is the through hole of the lock core, and 37 is the key hole.

Detailed ways

Below in conjunction with the accompanying drawings, the utility model is further described: as shown in Figure 1-6, a kind of anti-key loss reusable lock comprises a lock head 1 and a lock core 9, and the upper part of the lock head 1 is provided with a Cover plate groove 30, cover plate 8 is established in the cover plate groove 30, five lock head through holes 25, 26, 27, 28, 29 are provided equidistantly above the described lock head 1, and the front of the lock cylinder 9 There are five lock core through holes 32, 33, 34, 35, 36 that are connected with the lock head through hole and have the same diameter at the top equidistantly. Five lock cylinder side holes 24, 23, 22, 21, 20 with the same diameter and different lengths as the lock cylinder through holes are equidistantly opened, and springs 2 are arranged in the lock head through holes 25, 26, 27, 28, 29. And upper marbles 3,4,5,6,7, described lock cylinder through holes 32,33,34,35,36 set lower marbles 14,13,12,11,10, upper marbles 3,4,5, Balls 15, 16, 17, 18, 19 are respectively arranged between 6, 7 and lower marbles 14, 13, 12, 11, 10.

The five upper marbles 3, 4, 5, 6, 7 are cylinders with equal diameters and different lengths.

The five lower marbles 14, 13, 12, 11, 10 are cylinders with equal diameters and different lengths, and the lower ends thereof are conical.

The tooth shape of the key can be arbitrarily designed by adjusting the length of the upper and lower marbles and the diameter of the ball.

The upper end of the spring 2 is connected to the lower surface of the cover plate 8, and the lower end is connected to the upper marbles 3, 4, 5, 6, 7.

There is a cylindrical cavity 31 inside the lock head 1 , and the inner diameter of the cylindrical cavity 31 is the same as the nominal size of the outer diameter of the lock cylinder 9 .

There is a key hole 37 in the middle of the lock cylinder 9 .

Spring 2 and upper marbles 3, 4, 5, 6, 7 are respectively loaded into the lock head through holes 25, 26, 27, 28, 29, and each upper marble 3, 4, 5, 6, 7 lower ends have a small part positioned at the lock In the core through holes 32,33,34,35,36, if when turning the lock core 9 with a key other than this lock, the lower ends of these five upper marbles 3,4,5,6,7 have at least one to block the lock Core 9 makes the lock core 9 unable to rotate; if the key of this lock is used, when the key is inserted into the keyhole, the teeth on the key will push the five upper marbles 3, 4, 5, 6, 7 out of the lock core 9, Now lock core 9 just can rotate, and lock just can be opened.

After setting the length of the upper and lower marbles and the diameter of the ball, the lock of the present invention can be equipped with six keys, and these six keys must be unlocked in a certain order according to the structure set by the lock. From left to right, whether the upper pins can be pushed out of the lock cylinder is the order, and the key that cannot push all the upper pins out of the lock cylinder at the same time is the first key; the first one of the five balls can be pushed out exactly lock cylinder, and when the lock cylinder rotates 270°, the ball just falls into the first working hole of the lower lock cylinder, then the key is the second key, and the first key will automatically fail at this time; The first and second balls just push out of the lock cylinder, and when the lock cylinder rotates 270°, these two balls just fall into the first and second working holes of the lower lock cylinder, then the key is the third key, at this time the second key is automatically invalid; the first, second and third of the five balls can be pushed out of the lock cylinder, and when the lock cylinder rotates 270°, these three balls just fall into the lower lock cylinder In the first, second, and third working holes of the lock, the key is the fourth key, and the third key is automatically invalid; the first, second, third, and fourth of the five balls can be pushed out of the lock core, and when the lock cylinder rotates 270°, these four balls just fall into the first, second, third, and fourth working holes of the lower lock cylinder, then the key is the fifth key, at this time the fourth key Automatic failure; the first, second, third, fourth, and fifth of the five balls can be pushed out of the lock cylinder, and when the lock cylinder rotates 270°, these five balls just fall into the first, third, and fifth of the lower lock cylinder. In the second, third, fourth, and fifth working holes, the key is the sixth key, and the fifth key is automatically invalidated at this time.

It can be seen from this that the key sequence of the lock that can be used repeatedly to prevent key loss can be summarized as follows: the key that cannot push the ball out of the lock cylinder is the first key, and any one of the five balls can be pushed out of the lock cylinder The key is the second key, the key that can push any two of the five balls out of the lock cylinder is the third key, and the key that can push any three of the five balls out of the lock cylinder is the fourth key The key, the key that can push any four of the five balls out of the lock cylinder is the fourth key, and the key that can push all the five balls out is the fifth key.

When the first key is lost, if the second key is used, the first key will automatically become invalid; when the second key is lost, if the third key is used, the first and second keys will automatically become invalid; When the third key is lost, if the fourth key is used, the first, second, and third keys will automatically become invalid; when the fourth key is lost, if the fifth key is used, the first, second, The third and fourth keys are automatically invalid; when the fifth key is lost, if the sixth key is used, the first, second, third, fourth and fifth keys are automatically invalid.

Claims (3)

1. the reused lock that a preventing key is lost, comprise tapered end (1) with lock core (9), described tapered end (1) top offers slot cover (30), (8) slot cover establishes cover plate in (30), it is characterized in that: described tapered end (1) directly over equidistantly offer two above tapered end through holes (25), described lock core (9) directly over equidistantly offer and be connected with the tapered end through hole and quantity equates, the lock core through hole (32) that diameter is identical, (9) described lock core is gone up along the lock core side opening (24) that the clockwise 90 ° of directions of lock core through hole (32) also equidistantly offer with the tapered end number of openings equates and diameter is identical, in described tapered end through hole (25), establish spring (2) with upper pellet (3), set pellet (14) in described lock core through hole (32), upper pellet (3) and lower pellet be provided with ball (15) between (14).

2. the reused lock that preventing key as claimed in claim 1 is lost is characterized in that: described more than two, above pellet length (3) is different.

3. the reused lock that preventing key as claimed in claim 1 is lost is characterized in that: described two with upper and lower pellet length (14) different.

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