CN221703434U - Antitheft lock - Google Patents

Abstract

The utility model discloses an anti-theft lock, comprising a lock body, a rotating handle for controlling the opening and closing of the lock body, a key groove being provided on one side of the rotating handle, an elastic member and a key being provided in the key groove, one end of the elastic member contacts the rotating handle, and the other end contacts the key, a guide rod being provided at the bottom end of the key, a receiving groove being provided on the top of the lock body, the receiving groove comprising a circular groove and a guide groove connected with the circular groove, the guide rod being inserted into the receiving groove and moving in the circular groove and the guide groove, the utility model realizes the opening and closing of the lock by limiting the rotation of the rotating handle, the structure is simple and reliable, and the operation is convenient.

Description

Anti-theft lock

Technical Field

The utility model relates to the technical field of anti-theft locks, in particular to an anti-theft lock.

Background Art

Windows are essential decorative items in house construction, generally including sliding and casement types. Regardless of the type of window, the window needs to be locked with a lock. The lock can not only prevent rain from entering the room, but also play an anti-theft role.

At present, most of the locks used for windows are of the rotating type, which can unlock the window by rotating. This type of lock has poor security and obviously insufficient anti-theft performance.

Utility Model Content

In order to overcome the defects of the prior art, the utility model provides an anti-theft lock which significantly enhances the safety of windows.

The technical solution adopted by the utility model to solve its technical problems is:

An anti-theft lock comprises a lock body, wherein the lock body is provided with a rotating handle for controlling the opening and closing of the lock body, a key groove is provided on one side of the rotating handle, an elastic member and a key are provided in the key groove, one end of the elastic member contacts the rotating handle, and the other end contacts the key, a guide rod is provided at the bottom end of the key, a receiving groove is provided at the top of the lock body, the receiving groove comprises a circular groove and a guide groove connected to the circular groove, the guide rod is inserted into the receiving groove and moves in the circular groove and the guide groove.

Furthermore, a limiting groove is provided on the button, and part of the elastic member is arranged in the limiting groove.

Furthermore, the key slot includes a first slot and a second slot, the first slot is used to accommodate the key, and the second slot is used to accommodate the guide rod.

Furthermore, the rotating handle includes a rotating shaft and a handle rod connected to the rotating shaft, the key slot is arranged on the rotating shaft, and the bottom of the rotating shaft is inserted into the lock body.

Furthermore, the lock body includes a shell, the bottom of the rotating shaft is inserted into the shell, the bottom of the rotating shaft is sleeved with a corrugated spring sheet and a rotating wheel, and the corrugated spring sheet is arranged between the inner wall of the shell and the rotating wheel.

Furthermore, the bottom of the rotating shaft is a square structure, and the rotating wheel is provided with a square hole for the square structure to be inserted into.

Furthermore, the shell is semicircular or semi-elliptical, and two convex strips are provided on the shell.

Furthermore, the elastic member is a spring.

The beneficial effects of the utility model are:

In the locked state, the guide rod is limited in the guide groove, the rotary handle cannot rotate, and the anti-theft function is realized. When the button is pressed, the guide rod escapes the restriction of the guide groove, and the rotary handle is no longer hindered by the guide rod. The rotary handle is rotated to unlock smoothly. The utility model realizes the opening and closing of the lock by limiting the rotation of the rotary handle, has a simple and reliable structure, and is easy to operate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of the structure of the anti-theft lock of the present utility model.

FIG. 2 is a schematic structural diagram of the anti-theft lock of the utility model.

FIG. 3 is a schematic diagram of the structure of the button in the utility model.

FIG. 4 is a schematic structural diagram of a housing in the present invention.

In the figure: 100, lock body; 110, shell; 120, corrugated spring piece; 130, rotating wheel; 140, convex strip; 150, circular groove; 160, guide groove; 200, rotating handle; 210, key groove; 211, first notch; 212, second notch; 220, rotating shaft; 230, handle rod; 300, elastic member; 400, key; 410, limit groove; 500, guide rod.

DETAILED DESCRIPTION

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clearly understood, the utility model is further described below in conjunction with the accompanying drawings and embodiments.

Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

As shown in Figures 1 to 4, the utility model provides an anti-theft lock, including a lock body 100, on which a rotating handle 200 for controlling the opening and closing of the lock body 100 is provided, a key groove 210 is provided on one side of the rotating handle 200, an elastic member 300 and a key 400 are provided in the key groove 210, one end of the elastic member 300 contacts the rotating handle 200, and the other end contacts the key 400, a guide rod 500 is provided at the bottom end of the key 400, and a receiving groove is provided at the top of the lock body 100, the receiving groove includes a circular groove 150 and a guide groove 160 connected to the circular groove 150, and the guide rod 500 is inserted into the receiving groove and moves in the circular groove 150 and the guide groove 160.

The rotating handle 200 can be rotated to open and close the lock. Specifically, in the locked state, when the button 400 is not pressed, the elastic member 300 is in a normal stretched state, one end of the elastic member 300 abuts against the rotating handle 200, and the other end abuts against the button 400. At the same time, the guide rod 500 under the button 400 is inserted into the guide groove 160 at the top of the lock body 100. Under the action of the elastic member 300, the guide rod 500 is confined in the guide groove 160. At this time, the rotating handle 200 cannot be rotated, and the anti-theft lock is The anti-theft function is realized; when the anti-theft state needs to be released, the button 400 is pressed hard, the elastic member 300 is compressed inwardly by force, and the button 400 retreats toward the inside of the button groove 210. At the same time, the guide rod 500 below the button 400 moves inwardly with the button 400 until the guide rod 500 is separated from the guide groove 160 and enters the circular groove 150. At this time, the guide rod 500 escapes the restriction of the guide groove 160, and the rotating handle 200 is no longer hindered by the guide rod 500. The rotating handle 200 is rotated, and the anti-theft lock is unlocked smoothly. The utility model realizes the opening and closing of the lock by limiting the rotation of the rotating handle 200, and the structure is simple and reliable, and the operation is convenient.

Furthermore, a limiting groove 410 is provided on the button 400, and part of the elastic member 300 is disposed in the limiting groove 410. One end of the elastic member 300 expands and contracts in the limiting groove 410 and will not escape from the elastic member 300. The position of the elastic member 300 is relatively stable and will not deviate, thereby enhancing the reliability of the elastic member 300.

Furthermore, the key slot 210 includes a first slot 211 and a second slot 212. The first slot 211 is used to accommodate the key 400, and the second slot 212 is used to accommodate the guide rod 500. Specifically, the shape of the first slot 211 should be consistent with the shape of the key 400, and the shape of the second slot 212 should be consistent with the shape of the guide rod 500. In this way, the position of the key 400 and the guide rod 500 will not be shifted when moving, and the anti-theft performance is stable.

Preferably, the elastic member 300 is a spring.

The structure of the lock body 100 in the embodiment is not limited, and it only needs to be a rotary lock.

The rotating handle 200 includes a rotating shaft 220 and a handle rod 230 connected to the rotating shaft 220, a key slot 210 is arranged on the rotating shaft 220, and the bottom of the rotating shaft 220 is inserted into the lock body 100, specifically, the rotating shaft 220 is inserted into the lock body 100 through the circular slot 150. As a preferred embodiment, the lock body 100 includes a housing 110, the bottom of the rotating shaft 220 is inserted into the interior of the housing 110, and the bottom of the rotating shaft 220 is sleeved with a corrugated spring piece 120 and a rotating wheel 130, and the corrugated spring piece 120 is arranged between the inner wall of the housing 110 and the rotating wheel 130. Further, the bottom of the rotating shaft 220 is a square structure, and the rotating wheel 130 is provided with a square hole for the square structure to be inserted. Further, the housing 110 is semicircular or semi-elliptical, and two convex strips 140 are arranged on the housing 110, and the convex strips 140 play a guiding role, so as to facilitate the fixing of the lock body 100 on the window.

The assembly steps of the utility model are as follows: 1. Place the elastic member 300 into the button 400; 2. Place the button 400 with the elastic member 300 into the button slot 210; 3. Insert the rotating handle 200 into the housing 110, and insert the corrugated spring sheet 120 and the rotating wheel 130 into the bottom of the rotating shaft 220 in sequence; 4. Rivet the bottom of the rotating shaft 220 onto the rotating wheel 130.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall fall within the protection scope of the present invention.

Claims (8)

1. The utility model provides an anti-theft lock, its characterized in that, includes tool to lock body (100), be equipped with on tool to lock body (100) and be used for controlling twist grip (200) that it was opened and close, key way (210) have been seted up to one side of twist grip (200), be equipped with elastic component (300) and button (400) in button groove (210), the one end contact of elastic component (300) twist grip (200), the other end contact button (400), the bottom of button (400) is equipped with guide bar (500), the holding tank has been seted up at tool to lock body (100) top, the holding tank include circular slot (150) and with guide slot (160) of circular slot (150) intercommunication, guide bar (500) are inserted the holding tank and circular slot (150) with guide slot (160) internal motion.

2. The anti-theft lock according to claim 1, wherein the key (400) is provided with a limit groove (410), and a part of the elastic member (300) is arranged in the limit groove (410).

3. The antitheft lock according to claim 1, wherein the key slot (210) comprises a first notch (211) and a second notch (212), the first notch (211) being adapted to receive the key (400), the second notch (212) being adapted to receive the guide bar (500).

4. The antitheft lock according to claim 1, wherein the rotary handle (200) comprises a rotary shaft (220) and a handle lever (230) connected to the rotary shaft (220), the key groove (210) is provided on the rotary shaft (220), and the bottom of the rotary shaft (220) is inserted into the lock body (100).

5. The anti-theft lock according to claim 4, wherein the lock body (100) comprises a housing (110), the bottom of the rotating shaft (220) is inserted into the housing (110), the bottom of the rotating shaft (220) is sleeved with a wave spring plate (120) and a rotating wheel (130), and the wave spring plate (120) is arranged between the inner wall of the housing (110) and the rotating wheel (130).

6. The anti-theft lock according to claim 5, wherein the bottom of the rotating shaft (220) is a square structure, and the rotating wheel (130) is provided with a square hole into which the square structure is sleeved.

7. The antitheft lock according to claim 5, wherein the housing (110) is semicircular or semi-elliptical, and two protruding strips (140) are provided on the housing (110).

8. An anti-theft lock according to claim 1, characterized in that the elastic element (300) is a spring.