KR102470773B1 - Locking device with improved pin cover - Google Patents

Abstract

A lock with an improved pin cover of the present invention relates to a cylinder serving as a basic base, a cylinder plug coupled to the inside of the cylinder, a locking pin coupled to a pin hole penetrating the cylinder and the cylinder plug and interacting with each other by a key, and a drive. Consisting of pins, springs, locking pins, drive pins, and pin covers that are combined with the cylinder to prevent them from escaping, and snap rings that prevent the cylinder and cylinder plug from being separated. It is characterized in that it has an expanded overall space by securing an additional space in addition to the space.
Accordingly, the long drive pin is used to keep the drive pin more reliably hanging on the shearing line, so that the locked state cannot be forcibly released, improving the safety and reliability of the lock.

Description

Locking device with improved pin cover}

The present invention relates to a padlock in which a locking pin and a drive pin are matched in a shearing line to release a locked state, and more particularly, to a pin cover so that the usable space of a pin hole accommodating a locking pin, a drive pin, and a spring of the padlock can be expanded. is about improved locks.

In general, a lock refers to a mechanism or device installed in a subject such as a door, drawer, safe, or digital door lock to lock and dismantle through a key, and is used to maintain security or intrusion from the outside.

These locks are classified into various types according to opening and closing means, and among them, cylindrical locks that do not work even if the pattern of the key is slightly wrong are commonly used.

In the cylindrical lock, a cylinder plug is coupled to the inside of a cylinder, which is an outer cylinder, and a plurality of pin holes are formed to match and pass through the cylinder and the cylinder plug, and a locking pin and a drive pin to control the rotation of the cylinder plug are formed in the pin hole. , and a spring that presses the locking pin and the drive pin are combined so that when a key with an encrypted pattern is inserted into the key hole of the cylinder plug, the height of the locking pin and the drive pin is aligned with the inserted key to release the locked state. do.

In addition, in order to prevent the locking pin, drive pin, and spring coupled to the pin hole penetrating the outer cylinder and the inner cylinder from falling out, a coupling groove is formed inside the outer cylinder, and a support plate is coupled to the coupling groove to be configured to be fixed.

In the cylindrical lock configured as described above, the entire length of the pin hole is reduced due to the coupling groove formed to prevent the component including the locking pin located in the pin hole from falling out and the '-' shaped support plate coupled to the coupling groove. It is short, and the length of the locking pin, drive pin, and spring located in the pin hole is also shortened, so that the drive pin is slightly overlaid on the shearing line between the outer and inner cylinders.

As described above, in a state where the drive pin is slightly over the shearing line, insert a similar type of key or pointed tool, not a key with an encrypted pattern suitable for the lock, into the key hole of the cylinder plug and apply force to loosen the drive pin slightly. Even if it moves, there is a problem in that the locking function cannot be performed because the locking state can be forcibly released, such as the shearing line being easily separated and the locking state being released.

Korean Utility Model Registration No. 20-0217553

The present invention, conceived to solve the above problems, improves the pin cover that prevents the locking pin, drive pin, and spring coupled to the pin hole from escaping out of the pin hole to expand the use space of the pin hole and couple to the pin hole. By making the length of the drive pin that becomes longer, the drive pin can more reliably span the shearing line in the locked state of the lock, so that the drive pin can maintain the shearing line spanning the shearing line unless it is the key of the encrypted pattern. An object of the present invention is to provide a lock with improved reliability by preventing the line from being easily separated.

The lock with the improved pin cover of the present invention for achieving the above object is coupled to a cylinder as a basic base, a cylinder plug coupled to the inside of the cylinder and rotated, and a pin hole penetrating the cylinder and the cylinder plug to interact with each other by a key. It consists of a locking pin, drive pin and spring that act, a pin cover that is coupled to the cylinder to support the locking pin, drive pin and spring so that they do not come out, and a snap ring that prevents the cylinder and cylinder plug from being separated.

In particular, the pin cover is composed of a '∩'-shaped body portion to expand the use space of the pin hole of the cylinder where the locking pin, drive pin, and spring are coupled, and the '∩'-shaped body portion blocks the inflow of external foreign substances. The head part and the tail part are extended, and in order to combine the '∩'-shaped body part with the coupling groove of the cylinder, the coupling pieces are bent at both ends of the lower end of the '∩'-shaped body portion and coupled to the coupling groove of the cylinder. The end of the piece is characterized in that the elastic support piece is configured to be fixed to the coupling groove.

According to the present invention, the locking pin and drive pin coupled to the pin hole, and the locking pin and drive pin coupled to the pin hole by simply modifying the pin cover to prevent the spring from falling out to expand the usable space of the pin hole, It has the advantage of being able to secure the active space of the spring.

In particular, by expanding the usable space of the pin hole, a longer drive pin can be used, so that the drive pin can maintain a state more reliably over the shearing line when locking the lock, so it is impossible to unlock unless it is an encrypted key. It has the effect of improving the reliability of the lock by preventing

1 is a perspective view of a lock for the present invention
Figure 2 is an exploded perspective view of the lock for the present invention
Figure 3 is a state of use of the pin cover for the present invention
Figure 4 is a use state diagram in which the key to the lock for the present invention is not inserted
5 is a use state diagram in which the key of the lock for the present invention is inserted
6 is a side view of a lock for the present invention
Figure 7 is a partial cross-sectional view of a lock for the prior invention

Hereinafter, a lock with an improved pin cover will be described in detail. This description is based on an embodiment for implementing the present invention, and the technical idea pursued by the present invention is described in the embodiment described in this document. It should be understood that it is not intended to be limiting, and includes various modifications, equivalents and/or alternatives of the embodiments of the present invention.

In addition, even if the operational effects according to the configuration of the present invention are not explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the corresponding configuration should also be recognized.

The lock 1 of the present invention includes a cylinder 10 as a basic base, a cylinder plug 20 coupled to the inside of the cylinder 10 and rotating, a locking pin 30 and a drive pin 31 interacting with each other by a key. ) and a spring 32 that presses it, a locking pin 30, a drive pin 31, and a pin cover 40 supporting the spring 32, and the cylinder 10 due to the pin cover 40 It is characterized in that the pin hole of has an extended total space (L3) by securing an additional space (L2) in addition to the use space (L1).

The cylinder 10 has a through hole 11 to which the cylinder plug 20 is coupled therein, a cylinder pin hole 12 penetrating from an outer surface to the through hole 11, and a pin cover over the cylinder pin hole 12 ( 40) is coupled to the guide groove 13 and the coupling groove 14 is formed.

The cylinder plug 20 is a cylinder plug 20 coupled to the through hole 11 of the cylinder 10 and the plug pin hole 22 that coincides with the key hole 21 and the cylinder pin hole 12 into which the key is inserted. A snap ring groove 23 is formed to couple and fix the snap ring 50 so that it is not separated, and the cylinder pin hole 12 of the cylinder 10 and the plug pin hole 22 of the cylinder plug 20 coincide with each other. Many are formed with a central line that

In addition, the locking pin 30 is formed such that one end of the locking pin 30 is movable according to the encrypted pattern of the key inserted into the key hole 21 of the cylinder plug 20, and the other side moves mutually according to the movement of the locking pin 30. It is seated in the cylinder pin hole 12 and the plug pin hole 22 so that the drive pin 31 and the spring 32 are sequentially positioned so that they can act.

In addition, one side of the spring 32 abuts against the drive pin 31 and the other side abuts against and supports the '∩'-shaped body portion 41 of the pin cover 40.

In the pin cover 40, the cylinder pin hole 12 of the cylinder 10 to which the locking pin 30, the drive pin 31, and the spring 32 are coupled provides an additional space L2 in addition to the use space L1. The '∩'-shaped body part 41 is configured to secure and expand the entire space L3, and the head part 42 and the tail part block foreign substances from entering the pin holes 12 and 22 from the outside. The portion 43 is configured to extend.

In addition, a coupling piece 44 bent on both sides of the lower end of the '∩'-shaped body portion 41 and coupled to the coupling groove 14 of the cylinder 10, and a coupling groove 14 on one side of the coupling piece 44 ) An elastic support piece 45 for fixing is configured.

At this time, the elastic support piece 45 is bent at a predetermined angle to be longer than the height of the coupling groove 14 of the cylinder 10, and the coupling piece 44 of the pin cover 40 is of the cylinder 10. When pushed into the coupling groove 14, the elastic support piece 45 is pressed by the coupling groove 14 and inserted in an unfolded state to be fixed so as not to separate due to elasticity.

This pin cover 40 can be used to support the locking pin 30', the drive pin 31', and the spring 32' in place of the support plate 40' used in other conventional locks 1'. have.

Looking at the operation of the present invention configured as described above is as follows.

The cylinder plug 20 is rotatably coupled to the through hole 11 formed inside the cylinder 10 constituting the lock 1 of the present invention, and the cylinder plug prevents the cylinder plug 20 from being separated. Insert the snap ring 50 into the snap ring groove 23 of (20) and fix it.

In addition, the locking pin 30, the drive pin 31, and the spring 32 are sequentially inserted into the cylinder pin hole 12 of the cylinder 10 and the plug pin hole 22 of the cylinder plug 20, and the cylinder plug By inserting a key having an encrypted pattern into the keyhole (21) of (20) and aligning the locking pin (30) and the drive pin (31), the cylinder plug (20) rotates to release the locked state of the lock and the cylinder (10) It is the same as the prior art that the guide groove 13 and the coupling groove 14 are formed around the entrance of the cylinder pin hole 12 of ).

In the lock 1 of the present invention, the pin cover 40 is coupled to the guide groove 13 and the coupling groove 14 of the cylinder 10.

More specifically, the coupling piece 44 of the pin cover 40 is fitted into the coupling groove 14 of the cylinder 10 and pushed in.

When the coupling piece 44 pushed along the coupling groove 14 enters to some extent, the elastic support piece 45, which has been extended and bent to the coupling piece 44, is then inserted into the coupling groove 14 in a pressed state, At some point, when the head 42 comes into contact with the guide groove 13 and cannot be inserted further, the coupling piece 44 is fixed to the coupling groove 14 by the elasticity of the elastic support piece 45. .

The pin cover 40 fixed along the coupling groove 14 includes a locking pin 30, a drive pin 31, and a spring 32 in which the '∩'-shaped body portion 41 is located in the pin holes 12 and 22. The head part 42 and the tail part 43 extending at the same time as supporting the form surrounds the guide groove 13.

In this way, the pin cover 40 coupled to the guide groove 13 and the coupling groove 14 of the cylinder 10 is an additional space (L1) in addition to the space L1 of the cylinder pin hole 12 based on the coupling groove 14 ( L2) is secured to have an expanded total space (L3), and the length of the drive pin (31) is a little longer as much as the total space (L3) thus expanded so that the drive pin (31) when locking the lock (1) Reliability of the lock is greatly improved because the locked state cannot be unlocked unless it is an original key having an encrypted pattern by maintaining a state that is securely crossed over the shearing line (C).

1: lock
10: Cylinder
11: through hole
12: cylinder pin hole
13: guide groove
14: coupling groove
20: cylinder plug
21: Locksmith
22: plug pin hole
23: snap ring groove
30: locking pin
31: drive pin
32: spring
40: pin cover
41: '∩' type body
42: head
43: tail
44: binding piece
45: elastic support piece
50: snap ring
C: shearling line
L1: used space
L2: extra space
L3: total space

Claims (3)

A through hole 11 to which the cylinder plug 20 is coupled, a cylinder pin hole 12 to which the locking pin 30 is coupled, a guide groove 13 to which the pin cover 40 is coupled, and a coupling groove 14 are formed. cylinder 10;
A cylinder plug having a keyhole 21 into which a key is inserted and a plug pin hole 22 formed on the same center line as the cylinder pin hole 12 of the cylinder plug 20 and a snap ring groove 23 to which the snap ring 50 is coupled. (20) and
A locking pin 30 and a drive that are coupled to the cylinder pin hole 12 of the cylinder 10 and the plug pin hole 22 of the cylinder plug 20 and interact with each other by a key inserted into the key hole 21 to adjust the height. The pin 31 and the spring 32 pushing it,
A '∩'-shaped body portion 41 coupled to the guide groove 13 of the cylinder 10 to block the inflow of external foreign substances and support one side of the spring 30, and the '∩'-shaped body portion 41 A lock with an improved pin cover, characterized in that it consists of a pin cover 40 including a coupling piece 44 bent on both sides of the lower end and coupled to the coupling groove 14. According to claim 1,
The '∩'-shaped body part 41 has a head part 42 and a tail part 43 extending on both sides of the '∩'-shaped body part in order to block foreign substances from entering the pin holes 12 and 22 from the outside. A lock with an improved pin cover, characterized in that the elastic support piece 45 is configured on the coupling piece 44 bent on both sides of the lower end. According to claim 1,
The '∩'-shaped body portion 41 of the pin cover 40 extends to the outer surface where the guide groove 13 of the cylinder 10 is located, in addition to the space L1 used for the existing cylinder pin hole 12. A lock with an improved pin cover, characterized in that the additional space (L2) is secured so that the pin holes (12, 22) have an overall space (L3) further expanded.

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