WO2011137572A1

WO2011137572A1 - Combination padlock for preventing from technically unlocking

Info

Publication number: WO2011137572A1
Application number: PCT/CN2010/001884
Authority: WO
Inventors: 蔡立明
Original assignee: 宁波裕泰五金有限公司
Priority date: 2010-05-07
Filing date: 2010-11-24
Publication date: 2011-11-10
Also published as: CN201671428U

Abstract

A combination padlock for preventing from technically unlocking comprises a lock housing (1) with a lock hole (11) and a rod hole (12), and a substantial U-shaped lock shaft (2) with a long shaft (21) and a short shaft (22). The long shaft (21) is rotatablely defined in the lock hole (11), and the short shaft (22) can be inserted in the rod hole (12). A plurality of openings (3) in the lock housing (1) are longitudinally provided along the lock hole (11). A plurality of lock sleeves (4) sleeved around the long shaft (21) are defined longitudinally, and the exterior end face of each lock sleeve (4) is provided with a protruding key (5). A key slot (6) permitting the protruding key (5) to pass through in an unlocking state is provided in the interior wall of the corresponding lock hole (11). A stepped portion (51) is provided on the upper part of the protruding key (5). Anti-opening slots (7) are also provided in the interior wall of the lock hole (11), and the depth (L1) of the anti-opening slots (7) is smaller than the depth (L2) of the key slot (6), i.e. the anti-opening slots (7) only permit the stepped portion (51) on the upper part of the protruding key (5) to pass through and prevent the whole protruding key (5) from passing through.

Description

Anti-technical password padlock

Technical field

The invention relates to a password padlock, in particular to a password padlock which is protected against technology. Background technique

The existing padlock generally includes a lock case having a rod hole and a lock hole, and a lock bar having a long rod and a short rod and having a substantially u shape, wherein the long rod is rotatably restrained in the lock hole and can be opposite to the lock hole Moving up and down, the bottom of the keyhole is provided with a spring for holding the long rod upward, and the short rod can be inserted into the rod hole to form a closed locking ring, and the locking hole is provided with the long rod locking or unbuttoning by dialing the number wheel Password lock device.

The lock bars of the various password padlocks are all u-shaped lock bars, and the code lock device comprises a plurality of number wheels and a plurality of lock sleeves, wherein the number wheel is embedded one by one in the longitudinal direction of the lock case along the first lock hole In the opening, the lock sleeve is set and longitudinally limited to the long rod, and the outer end surface of each lock sleeve has a convex key that can be coupled with the latch of the number wheel, corresponding to the side wall of the first lock hole. There are a plurality of slots that allow the male keys to pass through in the unlocked state.

For example, a Chinese utility model patent "Password Padlock" with a patent number of ZL200520102057.9 (publication number CN2804305Y) discloses such a similar code lock device.

The above-mentioned password lock device may be opened by human technology. When the illegal molecular technology is turned on, the tendency to lift the lock lever upward is firstly maintained, because the height of the convex key on the lock sleeve must be smaller than the height of the opening of the lock body along the longitudinal direction of the lock hole. Therefore, the lifting lever will make the locking sleeve have an upward movement tendency, and then the illegal molecule rotates the number wheel. When the number wheel drives the locking sleeve to rotate to the unlocked state, that is, the convexity on the locking sleeve and the healthy groove on the side wall of the locking hole are opposite. When the convexity moves up a little distance and then snaps into the health groove, the number wheel can not be easily rotated, and then the other number wheel is also rotated, and finally the convex keys on each lock sleeve are aligned with the health groove, and the password lock device is unlocked. Was opened illegally.

Therefore, the existing password padlock can be further improved. Summary of the invention

The technical problem to be solved by the present invention is to provide a password padlock that can prevent a criminal from mistakenly turning the lock sleeve to an unlocked state to effectively prevent the illegal molecular technique from being turned on in response to the above-mentioned state of the art.

The technical solution for solving the above technical problem is: an anti-technically opened password padlock, comprising a lock case having a lock hole and a rod hole, and a lock bar having a long rod and a short rod and substantially U-shaped, wherein The long rod is rotatably restrained in the lock hole, the short rod can be inserted into the rod hole, the lock body is provided with a plurality of openings along the longitudinal direction of the lock hole, and the long rod is sleeved and longitudinally limited with a plurality of lock sleeves, each lock The outer end surface of the sleeve has a convex key, and the inner wall of the locking hole is opened to confirm the original in the unlocked state. a guarding groove for allowing a male key to pass through, wherein: the convex upper portion has a step portion, and the inner wall of the locking hole further has an anti-opening groove, wherein the depth of the anti-opening groove is smaller than the depth of the working groove, that is, The anti-opening groove only allows the stepped portion of the convex upper portion to pass and block the passage of the entire healthy groove.

In order to make the password padlock have a stronger anti-technical opening function, the above anti-opening slots have four and are arranged along the inner wall of the locking hole. This will make it possible for the stepped portion of the upper portion of the bracket to enter the anti-opening groove.

The middle portion of the long rod has a pair of convex portions for the upper limit of the lock sleeve, and the lower portion of the long rod is provided with a pair of lock sleeves for the lower limit.

Compared with the prior art, the invention has the advantages that: it has a stepped portion on the upper part of the convexity, and the inner wall of the keyhole is further provided with an anti-opening groove. When the molecular technique is turned on, the number wheel is rotated, and the lock sleeve is used. The upper stepped portion is facing the anti-opening groove. Under the action of the lock lever, the convex step portion is inserted into the anti-opening groove. At this time, the lock sleeve can no longer be rotated, so that the criminals mistakenly believe that the lock sleeve is rotated to unlock. The state, and the overall health can not pass through the anti-opening slot, so it is actually in a locked state, so this password padlock can effectively prevent the technology from being turned on. DRAWINGS

1 is a schematic perspective view of an embodiment of the present invention (in an anti-technical open state);

2 is a perspective cross-sectional view of the embodiment of the present invention (in an anti-technical open state);

3 is a partial cross-sectional view of a lock case according to an embodiment of the present invention; FIG. 4 is a perspective view of a lock sleeve according to an embodiment of the present invention;

Figure 5 is a cross-sectional view showing the structure of the embodiment of the present invention (in an unlocked state);

Figure 6 is a cross-sectional view showing the structure of the embodiment of the present invention (in an unlocked state). detailed description

The invention will be further described in detail below with reference to the embodiments of the drawings.

1 to 6, a preferred embodiment of the present invention.

An anti-technically opened password padlock includes a lock case having a lock hole 11 and a rod hole 12, and a lock lever 2 having a long rod 21 and a short rod 22 and being substantially U-shaped. The lock hole 11 is a deep hole and is located at the left portion of the lock case 1. The rod hole 12 is a shallow hole and is located at the right portion of the lock case 1. The long rod 21 is rotatably restrained in the lock hole 11, and the long rod 21 can be The relative locking hole 11 moves up and down within a certain range, and the up and down movement of the locking bar enables the short rod 22 to be inserted into the rod hole to form a closed locking ring.

The right side of the lock case 1 is longitudinally disposed with a plurality of openings 3 for the number wheel to be embedded in the longitudinal direction of the lock hole 11. The long rod 21 is sleeved and longitudinally limited to four lock sleeves 4, and the middle portion of the long rod 21 has a pair of lock sleeves 4 The upper portion of the long rod 21 is provided with a pair of lock sleeves 4 for the lower limit of the retaining springs 24, and the outer end surface of each of the lock sleeves 4 has a convex key 5 corresponding to the inner wall of the lock hole 11 for unlocking In the state, the retaining groove 6 is allowed to pass through the key 5, and the locking sleeve 4 can pass through the locking hole 11, but the convex key is not Can pass through the keyhole 11.

The number wheel is coupled with the convex key 5 on the lock sleeve, that is, the number wheel can drive the lock sleeve 4 to rotate in the opening 3. Since the above structure is a conventional structure of the password padlock, the number wheel structure and the number are omitted in this embodiment. The structure in which the wheel is mounted in the opening.

In fact, the number wheel can be installed in the following structure, and four structures corresponding to the number wheels are arranged in the lock hole to limit the rotation of each number wheel. The structure is a preset small hole provided in the lock case. After being assembled by the spring elastically held steel ball, the steel ball is just engaged in the pocket between the two numbers of the number wheel.

The above structure can refer to the patent number ZL200520102057.9 (publication number is CN2804305Y) or the patent number is ZL200820083066.1 (announcement number is CN201176761 Y) related to the password lock device in the padlock.

The improvement of the present invention is as follows: the upper portion of the convex key 5 has a step portion 51, and the inner wall of the lock hole 11 is further spaced apart by four anti-opening grooves 7, and the depth L1 of the anti-opening groove 7 is smaller than the depth L2 of the health groove 6, that is, The anti-opening groove 7 allows only the stepped portion 51 of the convex upper portion to pass and block the passage of the entire sanitary groove 5. As shown in Figure 5 and 6, the unlocking and unlocking of this password padlock works in the same way as the existing password padlock, and is not described here.

When the technology is opened, the tendency to lift the lock lever 2 upward is firstly maintained. Since the height of the male key 2 on the lock sleeve 4 is necessarily smaller than the height of the opening 3 of the lock body 1 along the longitudinal direction of the lock hole, the upper lift lever 2 causes the lock The sleeve 4 has an upward movement tendency, and then the illegal molecule rotates the number wheel. When the step portion 51 of the convex sleeve 5 on the lock sleeve faces the anti-opening groove 7, under the action of the lock lever 2, the convex step portion 51 is stuck in the prevention When the slot 7 is opened, the lock sleeve 4 can no longer be rotated, so that the criminals mistakenly believe that the lock sleeve 4 is rotated to the unlocked state, and the whole body 5 cannot pass through the anti-opening slot 7, so that the password padlock is still in the locked state. Therefore, this password padlock can effectively prevent the technology from being turned on.

Claims

Rights request

1. A password padlock for preventing technology opening, comprising a lock case having a keyhole (11) and a rod hole (12), and having a long rod

(21) and a short rod (22) and a substantially U-shaped lock lever (2), wherein the long rod (21) is rotatably restrained in the lock hole (11), the short rod

(22) The rod hole (12) can be inserted, the lock case (1) is provided with a plurality of openings (3) along the longitudinal direction of the lock hole (11), and the long rod (21) is sleeved and longitudinally limited with a plurality of locks. a sleeve (4), the outer end surface of each lock sleeve (4) has a convex key (5), and a corresponding groove (6) for allowing the convex key (5) to pass in an unlocked state is opened on the inner wall of the lock hole (11), It is characterized by:

The upper portion of the convex (5) has a step portion (51), and the inner wall of the lock hole (11) is further provided with an anti-opening groove (7), and the depth (L1) of the anti-opening groove (7) is smaller than the The depth (L2) of the potting groove (6), that is, the anti-opening groove (7) allows only the step portion (51) of the upper portion to pass and block the passage of the entire potting groove (5).

2. The anti-technically opened password padlock according to claim 1, characterized in that: the anti-opening slot (7) has four and is spaced apart along the inner wall of the locking hole (11).

3. The anti-technically opened password padlock according to claim 1, characterized in that: the middle portion of the long rod (21) has a pair of locking sleeves (4) for the upper limit convex portion (23), the long rod The lower part of (21) is provided with a pair of lock sleeves (4) for the lower limit of the retaining spring (24).