CN2833043Y

CN2833043Y - Lock with concealed antitheft function

Info

Publication number: CN2833043Y
Application number: CN 200520130407
Authority: CN
Inventors: 郭富胜
Original assignee: MINGTAI HARDWARE INDUSTRY Co Ltd
Current assignee: MINGTAI HARDWARE INDUSTRY Co Ltd
Priority date: 2005-10-25
Filing date: 2005-10-25
Publication date: 2006-11-01
Anticipated expiration: 2015-10-25

Abstract

The utility model relates to a lock having the function of hidden theft prevention, which comprises a lock core and a key, wherein the lock core is provided with an upper and a lower lock ball seats in a cylinder-shaped housing; a plurality of lock ball groups are arranged between the upper and the lower lock ball seats; the lower part of the upper lock ball seat is connected with a driving rod which passes through the lower lock ball seat; a positioning notch arranged on one side of a key hole of the upper lock ball seat extends from top to bottom; a positioning bulged block is arranged on the cylinder-shaped insertion end of the key bulges outwards and provided with an extension part which bulges out of the tail end of the positioning block. When the insertion end of the key is inserted into the key hole of the upper lock ball seat, the extension part is arranged in the positioning notch and the tail end of the extension part is align to the bottom surface of the upper lock ball seat. When other people attempt to open the lock with an incorrect key or other foreign objects, the upper lock ball seat is rotated, the lower lock ball pushed by a spring is clamped in the positioning notch, and the upper lock ball seat is clamped and fixed not to be rotated, thereby, the lock has the function of hidden theft prevention.

Description

Lockset with hiding anti-theft feature

Technical field

The present invention system refers to a kind of lock structure design of built-in concealed burglar-proof mechanism especially about a kind of lockset.

Background technology

Lockset is one to be used for preventing other people illegal intrusion or to steal the employed article of important item that therefore, the research and development emphasis of lockset all is the structure design that focuses on theftproof performance.

Known lockset is that kinds such as its pattern or structure are very various in response in the different use occasion or article at present.Generally speaking, the composition of existing key formula lockset, mainly comprise a core and one and the key that is complementary of this core, often to be applied to computer at present, drawer ... wait the lockset that uses the tubular key on the article to be example, its key has the tubular insertion end in its shank one end, be provided with several recesses between the end side face of this tubular insertion end, and be convexly equipped with one the location projection, this core comprises a cylindrical outer casing, the one pearl seat of locking, lock the pearl seat once, number lock pearl group and one drives bar, on being somebody's turn to do, under lock the pearl seat and fasten down and be installed in regular turn in this cylindrical outer casing, this pearl seat upper end of locking is provided with a ring key hole with locating notch, appear for outside this cylindrical outer casing, those lock pearl groups respectively comprise the pearl of locking, under lock pearl and spring, those pearls of locking are divided in the default hole of bead of locking of the pearl seat of locking, those lock pearl down, and each is installed in down respectively in the default following lock hole of bead of lock pearl seat in conjunction with a spring, in order between last, under lock between the pearl seat control whether it lock, this drive leverage provides in the perforation of this time lock pearl seat, and the upper end connects the pearl seat of locking, make drive bar can be with the pearl seat turn of locking.

This lockset when locking, because of those lock pearls groups lock pearl or down the lock pearl pearl seat of locking can't be rotated form lock-out state just between upper and lower lock pearl seat.When unblanking, system inserts in the tubular keyhole of core with the tubular insertion end of key, this insertion end side face shape and those pearls of locking are complementary, and the bearing surface of locking pearl up and down is positioned at just corresponding to the bearing surface of locking the pearl seat up and down, afterwards, screw key can be unblanked through driving the bar rotating lock bolt via the pearl seat of locking.

Though the design of aforementioned tubular lockset provides a lockset with locking function, yet, this lockset has the shortcoming that is easy to other people illegal unlatching, because: the tubular key that this lockset uses and the combining structure of the pearl seat of locking, easily use in an outer polygonal tubular object or the corresponding insertion of the similar tubular key keyhole for other people, rotate it by force and lock the pearl seat and unblank, so that this lockset can be unlocked easily, and the not good shortcoming of antitheft usefulness is arranged.

The utility model content

Main purpose of the present invention is to provide a kind of lockset with hiding anti-theft feature, and design by this is in order to promote the lockset anti-theft feature of aforementioned use tubular key.

For reaching aforementioned purpose, technical scheme proposed by the invention system makes this lockset with hiding anti-theft feature comprise a core and one and the key that is complementary of this core, this key is convexly equipped with a location projection in its tubular insertion end side, this core mainly in a cylindrical outer casing movably group establish the pearl seat of locking, and set firmly and lock the pearl seat and be positioned at the pearl seat below of locking, this pearl seat upper end of locking is provided with a keyhole with locating notch, be complementary with the tubular insertion end of this key, on being somebody's turn to do, under lock and be provided with the control of number lock pearls group between the pearl seat whether it locks, and connecing a drive bar under the pearl seat of locking passes in this time lock pearl seat, wherein, the locating notch of this pearl seat of locking from its side-wall shaft to extending to the bottom surface, and the position in the lock hole of bead under the rotate path correspondence of this locating notch bottom nozzle, the locating convex block of this key insertion end evagination axially protrudes out an extension, and when this key insertion end is inserted the keyhole of the pearl seat of locking, this extension is inserted in the locating notch, makes it terminal just concordant with this pearl seat bottom surface of locking.

That is to say, the purpose of this utility model is to provide a kind of lockset with hiding anti-theft feature, comprise a core and one and the key that is complementary of this core, this key is convexly equipped with a location projection in its tubular insertion end side, this core in its cylindrical outer casing movably group establish the pearl seat of locking, and set firmly and lock the pearl seat and be positioned at the pearl seat below of locking, this pearl seat upper end of locking is provided with a ring key hole with locating notch, be complementary with the tubular insertion end of this key, on being somebody's turn to do, under lock the pearl seat on it is corresponding, under lock and be provided with its clutches of number lock pearls group control in the hole of bead, and connecing a drive bar under this pearl seat of locking passes in this time lock pearl seat, wherein:

This locating notch extends to the bottom surface from the pearl seat top axial of locking, and the position in the lock hole of bead under the rotate path correspondence of this locating notch bottom nozzle, this locating convex block has one and axially protrudes out the outer extension of this key insertion end end, this key insertion end is inserted in the keyhole of the pearl seat of locking, this locating convex block and extension are inserted in the locating notch, make this extension terminal just concordant with this pearl seat bottom surface of locking.

The present invention is by the aforementioned techniques design for scheme, make this lockset except that general lockset is due lock and unlocking function, lockset of the present invention further utilizes the extension that locating convex block protruded out of its key insertion end, with this lock the pearl seat by on extend to the structure design that the locating notch of bottom surface is complementary, make this lockset that the concealed burglar-proof mechanism be arranged, this core is had only use correct key to insert in the core, can remove lock pearl seat, drive bar of the locking of this lock pearl group and rotation and unblank; And if other people are when using the attempt of non-correct key or foreign object to insert core, this pearl seat of locking is once being rotated a low-angle, and its locating notch promptly by the following lock pearl blocking of spring contact wherein and is fixed and can't rotates; Although other people understand the concealed burglar-proof mechanism of this lockset, then be built in the pearl seat of locking in the cylindrical outer casing, because of being difficult for eliciting the correct depth of this locating notch by the outside, and then mend the root edge of flat this locating notch with foreign object, the degree of difficulty that promptly causes other people illegally to unblank, and then promote the antitheft usefulness of this lockset effectively.

Description of drawings

Fig. 1 is the perspective exploded view of a preferred embodiment of the lockset of the present invention with hiding anti-theft feature.

Fig. 2 is a three-dimensional appearance schematic diagram after the combination of lockset preferred embodiment shown in Figure 1.

To be lockset preferred embodiment shown in Figure 1 insert the operation chart that core and key are unblanked in key for Fig. 3, Fig. 4.

Fig. 5 is that the core in the lockset preferred embodiment shown in Figure 1 is that the key of non-coupling inserts and the enforcement state reference map that can't unblank.

[critical element symbol description]

10 cores, 11 cylindrical outer casings

111 through holes

12 pearl seat 121 keyholes of locking

122 locating notches, 123 openings

124 hole of bead 125 joining holes of locking

13 times lock pearl seat 131 Fixed latches

The 132 times lock hole of bead 133 perforations

14 lock pearls groups 141 pearl of locking

142 times lock pearl 143 springs

15 drive bar

20 keys, 21 shanks

22 insertion ends, 23 recesses

24 locating convex blocks, 25 extensions

30 keys

The specific embodiment

As shown in Figure 1, be to disclose the preferred embodiment that the present invention has the lockset of hiding anti-theft feature, by can see among the figure and, this lockset mainly comprises a core 10 and one and the key 20 that is complementary of this core 10, shown in the first～three figure, wherein:

This core 10 comprise a cylindrical outer casing 11, lock pearl seat 12, lock pearl seat 13 once, number lock pearl group 14 and drives bar 15, wherein:

These cylindrical outer casing 11 tops have a through hole 111, can pass through wherein for key 20 ends.

This circle pearl seat 12 of locking is to be installed in movably in this cylindrical outer casing 11, these pearl seat 12 upper ends of locking are provided with the keyhole 121 of an annular, appear outside the through hole 111 for this cylindrical outer casing 11, and this pearl seat 12 of locking is provided with one in these keyhole 121 1 sides and extends to the locating notch 122 of bottom by top axial, this locating notch 122 can radially not run through the sidewall (figure does not show) of this pearl seat of locking, or this locating notch 122 forms the design that radially extends to this pearl seat 12 sidewalls formation opening 123 of locking as shown in Figure 1, these pearl seat 12 lower ends of locking are provided with several hole of beads 124 connection keyholes 121 of locking again, and are provided with a joining hole 125 in addition in its centre.

This time lock pearl seat 13 is fixedly arranged in the cylindrical outer casing 11, be positioned at this pearl seat 12 lower ends of locking, preferred embodiment as shown in Figure 1, this time lock pearl seat 13 is to be fixed in the cylindrical outer casing 11 by Fixed latches 131, this time lock pearl seat 13 upper surfaces are provided with the following lock hole of bead 132 with respect to the hole of bead 124 quantity of locking, and be provided with the perforation 133 of a up/down perforation in this time lock pearl seat 13 central authorities, and make the rotate path of locating notch 122 bottom nozzles of this pearl seat 12 of locking lock 132 positions, the hole of bead corresponding at least one time, in this preferred embodiment, this time lock hole of bead 132 is to be equidistant annular arrangement with respect to locking pearl seat 13 centers down, makes the rotate path of these locating notch 122 bottom nozzles lock the position in the hole of bead 132 down corresponding to each.

Those lock pearls groups 14 respectively comprise the pearl 141 of locking, lock pearl 142 and spring 143 down, those lock pearl groups 14 are to be divided in the hole of bead 124 of respectively locking of the pearl seat 12 of locking with its pearl 141 of locking, following in addition lock pearl 142 is installed in down in conjunction with spring 143 in each time lock hole of bead 132 of lock pearl seat 13, in order to whether it locks between 1213 controls of upper and lower lock pearl seat.

This drive bar 15 is to provide movably in the perforation 133 of this time lock pearl seat 13, and is mounted in the joining hole 125 of the pearl seat 12 of locking with its upper end, make drive bar 15 can be with the together turn of pearl seat 12 of locking.

This key 20 has the end that a shank 21 and a tubular insertion end 22 are positioned at this shank 21, the terminal side face of this tubular insertion end 22 is concaved with the recess 23 of organizing 14 quantity with respect to the lock pearl, in order to pearl 141 corresponding matching of locking, and end one side of this tubular insertion end 22 is convexly equipped with a location projection 24, this locating convex block 24 and have an extension 25 and axially protrude out this tubular insertion end 22 terminal predetermined length, this this locating convex block 24 and extension 25 thereof can correspondingly insert in the locating notch 122 of this pearl seat 12 of locking, and these extension 25 ends can be concordant with pearl seat 12 bottom surfaces of locking.

The present invention designs by aforementioned lockset, when assembling is used, system is installed in thing to be locked, and with its drive bar 15 connection locking bolts, so, shown in first and third, four figure, this lockset can utilize the pearl 141 of locking in this pearl seats 12 of locking of recess 23 butts of this key 20 insertion ends 22 side faces, make the mating face of upper and lower lock pearl 141142 move to the position, mating face that just is positioned at upper and lower lock pearl seat 1213, rotate to lock pearl seat 12 and drive bar 15 with key 20 again and unblank, or backward rotation is locked.

Lockset of the present invention removes aforementioned locking, outside the function such as unblank, the extension 25 that this lockset further utilizes the locating convex block 24 of these key 20 insertion ends 22 to be protruded out, with this lock pearl seat 12 by on extend to the bottom surface locating notch 122 be complementary, and the structure designs such as position in the lock hole of bead 132 under the rotate path correspondence of these locating notch 122 bottom nozzles, make this lockset that the concealed burglar-proof mechanism be arranged, by this, this lockset is had only use correct key 20 to insert in the keyhole 121 of its core, and make and mend flat its lower port in the locating convex block 24 of these key 20 insertion ends 22 and the locating notch 122 that extension 25 stretches into this pearl seat 12 of locking thereof, can remove the locking of this lock pearl group 14, and rotate the pearl seat 12 of locking, driving bar 15 unblanks.

As shown in Figure 5, when if other people use non-correct key 30 to insert core 10, can to extend pearl seat 12 bottom surfaces of locking via the locating notch 122 of this core 10 concordant because of the extension of these key 30 no locating convex blocks, so rotate the pearl seat 12 of locking by force with this non-correct key 30, can make the pearl 142 of lock once in this time lock pearl seat 13 under spring 143 pushing tows, snap in this locating notch 122, the pearl seat 12 of locking can't be rotated by blocking; Even if understanding, other people have this concealed burglar-proof mechanism in this lockset, but, be built in the pearl seat 12 difficult correct depths that directly elicite its locating notch 122 by the outside of locking in the cylindrical outer casing 11, and then be difficult for mending the root edge of putting down this locating notch 122 with foreign object, when so pearl seat 12 is locked in rotation by force with 10 attempts of non-correct key 30 insertion cores, still can snap in this locating notch 122, and make the pearl seat 12 of locking be fixed by blocking and can't rotate by the following lock pearl 142 of locking down in the pearl seat 13.

In sum, this has the lockset design of hiding anti-theft feature mat of the present invention, really can effectively promote the antitheft not good shortcoming of previous existing lockset, and a practical lockset design that anti-theft effect is excellent is provided.

Claims

1. lockset with hiding anti-theft feature, comprise a core and one and the key that is complementary of this core, this key is convexly equipped with a location projection in its tubular insertion end side, this core in its cylindrical outer casing movably group establish the pearl seat of locking, and set firmly and lock the pearl seat and be positioned at the pearl seat below of locking, this pearl seat upper end of locking is provided with a ring key hole with locating notch, be complementary with the tubular insertion end of this key, on being somebody's turn to do, under lock the pearl seat on it is corresponding, under lock and be provided with its clutches of number lock pearls group control in the hole of bead, and connect a drive bar under this pearl seat of locking and pass in this time lock pearl seat, it is characterized in that:

2. the lockset with hiding anti-theft feature as claimed in claim 1 is characterized in that: this locating notch radially extends to this pearl seat sidewall of locking and forms opening.