TWM516636U - Lock with anti-theft function - Google Patents

Description

Lock with anti-theft function

This creation is about a lock technology, especially a lock with anti-theft function.

Generally, the traditional lock has a lock that is completely exposed. Therefore, the thief can easily use various tools to open the lock, because the thief uses the unlocking tool to have unlimited space for movement, and the operating angle is not limited, and the lock is unlocked. The size of the tool is also not limited, so the success rate of the thief is increased.

Therefore, in order to reduce the success rate of the thief, it is necessary to add more locks, such as gear locks for the car, password locks or several locks on the iron door of the house, but the locks will be locked and unlocked. Time will also increase the cost. If multiple locks are installed in the iron gate of the house, the door will be unsightly.

Therefore, how to create an activity space that can limit the use of unlocking tools by thieves, making it difficult to operate, or even impossible to operate, can reduce the success rate of thieves, or let thieves directly eliminate the intention of theft to solve the prior art Defects will be the active disclosure of this creative office.

The purpose of the present invention is to provide a lock with anti-theft function, which has the advantage of using a design of an anti-theft sleeve to cover the lock and expose a small opening for key insertion and matching with the restriction of the engagement member. The tamper-proof sleeve can only move within a reasonable range while it does not detach. This design can increase the difficulty of unlocking the lock, making the thief's unlocking tool difficult to operate or even impossible to operate. The creation is also designed with a curved key to allow the curved key to be inserted into the anti-theft sleeve and unlocked. Action, because the general key is a straight strip structure, the unlocking action of this case cannot be achieved.

In order to achieve the above object, the present invention proposes a lock with anti-theft function, comprising: a lock head and an anti-theft sleeve. The lock head is a lock with an anti-theft function, the lock head includes a key hole, and the outer side of the lock head is sleeved with a snap member, the latching member has a limiting portion; the anti-theft sleeve is a hollow cylinder body, and the head end is Closed, the bottom end is an opening, the anti-theft sleeve is mounted on the outside of the lock head, and is freely rotatable, covering the lock head but not actually connecting the lock head, so that the lock head is located inside the anti-theft sleeve, and theft prevention after installation The sleeve is restricted by the limiting portion of the engaging member, can only move within a proper range and cannot be disengaged, and the anti-theft sleeve has a through hole for the key to be inserted.

In order to achieve the above purpose, the creation further comprises a curved key having a grip portion and a key body, the grip portion is coupled with the key body and intersecting each other at an angle, and the curved key can be inserted into the anti-theft sleeve. Through the hole, and open the lock.

1‧‧‧A lock with anti-theft function

10‧‧‧Lock

11‧‧‧Keyhole

12‧‧‧Cards

121‧‧‧Limited Department

20‧‧‧Anti-theft sleeve

21‧‧‧through hole

22‧‧‧ rim

30‧‧‧ curved key

31‧‧‧ grip

32‧‧‧Key body

FIG. 1 is an exploded perspective view of a lock with anti-theft function.

FIG. 2 is a three-dimensional combination diagram of a lock with anti-theft function.

Figure 3 is a side view of the combination of a lock with anti-theft function.

FIG. 4 is another exploded perspective view of a lock with anti-theft function.

FIG. 5 is a perspective structural view of another angle of the bottom of the anti-theft sleeve.

Fig. 6 is a perspective structural view of the created curved key.

FIG. 7 is a schematic diagram of a lock with an anti-theft function when unlocking.

The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily appreciate other advantages and effects of the present invention from the disclosure herein.

Hereinafter, an embodiment of the present creation will be described with reference to the drawings, it should be noted that The following drawings are simplified schematic diagrams, and only the basic concept of the present invention is illustrated in a schematic manner, and only the structures related to the present creation are illustrated in the drawings, rather than drawn according to the number, shape and size of components in actual implementation. The type, quantity and proportion of each component in actual implementation are not limited to the illustrations, and can be changed according to actual design needs.

Referring to FIG. 1 to FIG. 7 , as shown in the figure, a lock 1 with anti-theft function of the present invention comprises: a lock head 10 and an anti-theft sleeve 20 . The lock head 10 is a lock with an anti-theft function, and the lock head 10 includes a key hole 11 for the key to be inserted and unlocked. A latching member 12 is disposed on the outer side of the lock head 10. The latching member 12 has a limiting portion 121 and has a limiting function.

In a preferred embodiment, the engaging member 12 is a tubular structure that is overlaid on the outside of the lock head 10, and the limiting portion 121 is a flange that protrudes beyond the tubular structure.

The anti-theft sleeve 20 is a hollow cylinder having a closed end and an open end. The anti-theft sleeve 20 is mounted on the outside of the lock 10 and is freely rotatable to cover the lock 10 but is not practical. The locking head 10 is connected to the inside of the anti-theft sleeve 20. After the mounting, the anti-theft sleeve 20 is restricted by the limiting portion 121 of the engaging member 12, and can only move within an appropriate range and cannot be disengaged. And the anti-theft sleeve 20 has a through hole 21 for the key to be inserted and the lock 10 to be opened.

As shown in FIG. 5, in a preferred embodiment, the bottom end of the anti-theft sleeve 20 has an inwardly extending rim 22, and the inner diameter of the rim 22 is smaller than the outer diameter of the engaging member 12, such that the ring The rim 22 is restricted by the engaging member 12 and cannot be detached.

As shown in FIG. 6 and FIG. 7, the lock 1 with anti-theft function of the present invention further includes a curved key 30 having a grip portion 31 and a key body 32, a grip portion 31 and a key. The bodies 32 are joined and intersect at an angle to each other. The curved key 30 is designed to be inserted into the through hole 21 of the anti-theft sleeve 20, and the key body 32 can be inserted into the key hole 11 of the lock head 10, and the key body 32 can be rotated by the grip portion 31 to complete the unlocking. Action, curved key 30 can be inserted into the anti-theft sleeve The through hole 21 of the barrel 20 opens the lock head 10.

Preferably, the grip portion 31 is coupled to the key body 32 and orthogonal to each other, so that the structure of the curved key 30 is L-shaped. And the key body 32 is not limited to any form of key, and any key body 32 that can be used is within the scope of the present patent.

The advantage of this creation is that, with the design of an anti-theft sleeve, the lock is covered and a small opening is exposed for the key to be inserted, and the engagement member is used to limit the anti-theft sleeve to move only within a reasonable range. At the same time, it will not be detached. This design can increase the difficulty of unlocking the lock, making the thief's unlocking tool difficult to operate and even impossible to operate. The creation also cooperates with the design of a curved key, so that the curved key can be inserted into the anti-theft sleeve and the unlocking action is completed, because the general keys are all straight-shaped structures, and the unlocking action of the creation cannot be achieved.

While the foregoing description and drawings have disclosed the preferred embodiments of the present invention, it is to be understood that various modifications, various modifications and substitutions may be used in the preferred embodiments of the present invention without departing from the scope of the appended claims. The spirit and scope of this creative principle. It will be appreciated by those skilled in the art that the present invention can be modified in many forms, structures, arrangements, ratios, materials, components and components. Therefore, the embodiments disclosed herein are to be considered as illustrative of the present invention and are not intended to limit the present invention. The scope of this creation is defined by the scope of the appended patent application and covers its legal equivalents and is not limited to the foregoing description.

1‧‧‧A lock with anti-theft function

10‧‧‧Lock

11‧‧‧Keyhole

12‧‧‧Cards

121‧‧‧Limited Department

20‧‧‧Anti-theft sleeve

21‧‧‧through hole

Claims (5)

The utility model relates to a lock with anti-theft function, comprising: a lock head, the lock head is a lock, and has an anti-theft function, the lock head comprises a key hole, and the outer side of the lock head is sleeved with a snap member, the snap member has a a limiting portion; and an anti-theft sleeve, which is a hollow cylinder having a closed end and an open end, the anti-theft sleeve being mounted on the outside of the lock and freely rotatable to cover the The lock is not actually connected to the lock head, so that the lock head is located inside the anti-theft sleeve. After the installation, the anti-theft sleeve is limited by the limit portion of the engaging member, and can only move within an appropriate range. It cannot be detached, and the tamper-proof sleeve has a through hole for the key to be inserted. A lock with anti-theft function according to claim 1, further comprising a curved key having a grip portion and a key body, the grip portion being coupled to the key body and intersecting each other at an angle, The curved key can be inserted into the through hole of the anti-theft sleeve and the lock is opened. A lock with anti-theft function according to claim 2, wherein the grip portion of the curved key is coupled to the key body and intersects each other, so that the structure of the curved key is L-shaped. The lock of the anti-theft function of claim 1, wherein the engaging member is a tubular structure, and is wrapped and mounted on the outside of the lock, and the limiting portion is a flange protruding from the tubular structure. . The anti-theft function of claim 1, wherein the bottom end of the anti-theft sleeve has an inwardly extending rim, and an inner diameter of the rim is smaller than an outer diameter of the engaging member, such that The rim is restricted by the engaging member and cannot be detached.