CN201276888Y

CN201276888Y - Anti-theft cylinder lock

Info

Publication number: CN201276888Y
Application number: CNU2008203020878U
Authority: CN
Inventors: 韦建葵; 樊俞成
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-10
Filing date: 2008-09-10
Publication date: 2009-07-22
Anticipated expiration: 2018-09-10

Abstract

The utility model discloses an anti-theft cylinder lock, the outer lock core of which is movably arranged in the round hole of the lock core sleeve which limits the axial movement, and the inner lock core of which has a space moving axially in the key hole under the unlocking state; a connecting slide block which can be separated from and meshed with a connecting seat connected with a rotating tongue piece is arranged in a round hole at the inner end of the inner lock cylinder, and the connecting slide block is connected with the inner lock cylinder through a guide key and a guide key groove; and when the inner lock cylinder and the outer lock cylinder are in a locked state, the distance from the inner end surface of the inner lock cylinder to the meshing end surface of the connecting seat is greater than the distance from the meshing end surface of the connecting slide block to the outer end of the guide key. The utility model discloses can prevent that other people from adopting the instrument of stealing to open and unblank, can have stronger guard action to sled, brill, hammer.

Description

Anti-pirate of the open ball lock head

Technical field

The utility model relates to lock technology field, particularly a kind of have prevent that other people from adopting the cylinder lock of technological means pirate of the open.

Technical background

The lock head branch of common spring lock includes internal cylinder and outer lock core two large divisions, the planted agent position of inside and outside lock core is provided with a plurality of pellets shot from a slingshot hole, pellet shot from a slingshot and interior pellet shot from a slingshot outside marble spring and one all is housed in each pellet shot from a slingshot hole, is connected with the connector of unblanking that drives dead bolt in the lock body in the inner of internal cylinder.Such tapered end in use, outer lock core normally is fixed on door or other needs on the sealed object, when putting in place in the keyhole of the key insertion internal cylinder of unblanking, make the interior pellet shot from a slingshot in each pellet shot from a slingshot hole just in time identical with the mating face of outer lock core and internal cylinder with the mating face of outer pellet shot from a slingshot, under this state, the twisting key promptly can rotate internal cylinder, and connector drives dead bolt and release by unblanking.Yet, this structure be latched in defective.Theft is by driving internal cylinder, and the mating face that one by one the interior pellet shot from a slingshot in each pellet shot from a slingshot hole is outwards ejected the interior pellet shot from a slingshot that makes in each pellet shot from a slingshot hole and outer pellet shot from a slingshot just in time coincide with the mating face of outer lock core and internal cylinder, can reach and the unblank purpose of key unlocking of use.

Summary of the invention

Problem to be solved in the utility model provides a kind of anti-pirate of the open ball lock head, and it can prevent that other people from adopting the pirate of the open instrument to make in each pellet shot from a slingshot hole pellet shot from a slingshot be pushed into lockset position of coupler and carrying out non-destructive and unblank.

In order to address the above problem, anti-pirate of the open ball lock head of the present utility model is also the same with prior art to have outer lock core and is contained in internal cylinder in the outer lock core hole, be contained in marble spring and outer pellet shot from a slingshot in the described outer lock core pellet shot from a slingshot hole, be contained in the interior pellet shot from a slingshot in the described internal cylinder pellet shot from a slingshot hole, and these total technical characterictics of rotation tongue piece that are used to drive bolt works, in addition, described outer lock core is to be contained in versatilely in the circular hole that limits its axially movable lock core cover, between described internal cylinder and described outer lock core, be under the latched position state, also be provided with the space that allows this internal cylinder move inward outside the inner of described internal cylinder, make described internal cylinder and described outer lock core under released state, described internal cylinder can be in described outer lock core axial motion; The inner of described internal cylinder is provided with one section circular hole that is communicated with keyhole, and the connection slide block is housed in this circular hole, is provided with on the hole wall of this circular hole and the described guiding keyway that is connected the feather key engagement of slide block; In the through hole of the described lock core cover of the inner of described internal cylinder, a Connection Block that is connected with described rotation tongue piece is housed versatilely, this Connection Block is equipped with spring with described the connection between the slide block, this Connection Block is connected in the middle of the two one of slide block and is provided with engaging tooth with described, another part is provided with the engagement teeth groove, when key inwardly advances described internal cylinder and the part of described connection slide block ejected described internal cylinder, can make being meshed on the described connection slide block with described Connection Block; Be under the latched position state between described internal cylinder and described outer lock core, the inner face of described internal cylinder arrives the distance of described feather key outer end greater than the engagement end face of described connection slide block to the distance of described Connection Block engagement end face.This structure makes at described internal cylinder and described outer lock core under the state of not release, if described connection slide block is inwardly headed into attempt with the engagement of described Connection Block and rotate when unblanking, allow described connection slide block break away from the guiding keyway of described internal cylinder, seat rotates and unblanks in case the rotating band of described internal cylinder is dynamically connected.

In the such scheme, described internal cylinder is the plane with the side that can be arranged to a rare joint that cooperates between the described outer lock core, and rotates with respect to described outer lock core to prevent described internal cylinder.In the such scheme, connect slide block and the hard baffle plate can also be housed towards an end of keyhole, to prevent that the pirate of the open instrument from adopting the mode that penetrates described connection slide block that described connection slide block is applied twisting resistance, in described internal cylinder one section hard back-up ring that is provided with keyhole can be housed also outside key port one end, in case drilling tools etc. directly destroy described internal cylinder, the end that described lock core is enclosed within key port can be embedded in the hard guard ring, in case modes such as employing hammering are destroyed described lock core cover and described outer lock core.Above-mentioned lock core cover can be connected and composed by two parts, and between the inner face of described outer lock core and described lock core cover, ball is housed, like this can be convenient for assembly, limit described outer lock core moving axially in described lock core cover, and the rotary resistance of minimizing outer lock core, in case adopt boring bar tool to destroy the outer end of this lock.The inner of described lock core cover can be connected with mounting baseplate by bolt, and this tapered end is convenient to be installed thereby allow, and can adapt to the installation of the door-plate of all thickness.

The utility model to alleged outer end in the description of this anti-pirate of the open ball lock head and component thereof, be meant on the keyhole axis direction and insert a mouthful close end that alleged the inner then is meant relatively an end that inserts mouthful away from key with key.

Owing to adopted such scheme, the utility model compared with prior art has following beneficial effect:

1, can prevent that other people from adopting the pirate of the open instrument to unblank.Be connected slide block and Connection Block engagement rotation owing to adopt the pirate of the open instrument releasing internal cylinder and the lock-out state of outer lock core still can't make, therefore still can't this lock of pirate of the open.

2, can tamper evident unblank.Because internal cylinder and outer lock core can easily rotate around the lock core cover, be not between internal cylinder and the outer lock core under the released state, no matter the key of insertion turns to any angle, all can easily extract, therefore, can prevent that other people from prizing by illegal key-shaped tool extracts internal cylinder.

3, can anti-drillingly ruin and unblank.Be provided with the hard back-up ring in the internal cylinder outer end, outer lock core can freely rotate around the lock core cover again, therefore adopts the boring bar tool breaking-up to unblank to have very strong protective action to internal cylinder and pellet shot from a slingshot; Be provided with the hard baffle plate in the outer end that connects slide block, can unblank to have very strong protective action adopting boring bar tool to destroy the connection slide block.

4, can in case hammering destroy and to unblank.The hard guard ring is adopted in outer end at this tapered end, can effectively strengthen the hammering protection to lock core cover and interior outer lock core.

Description of drawings

Fig. 1 is that the inside and outside lock core of the utility model embodiment is in the front view under the locked state.

Fig. 2 is the right view of the utility model embodiment.

Fig. 3 is that the inside and outside lock core of the utility model embodiment is in front view under the released state.

Fig. 4 is the sectional view at A-A place among Fig. 3.

Fig. 5 is the front view under the utility model embodiment unlocking condition.

Fig. 6 is the sectional view at B-B place among Fig. 5.

The specific embodiment

Fig. 1, anti-pirate of the open ball lock head shown in Figure 2, its key insert mouthful at right-hand member, and right side one end in the following description is the outer end of this anti-pirate of the open ball lock head, and left side one end is the inner of this anti-pirate of the open ball lock head.

This anti-pirate of the open ball lock head has a lock core cover that is made of by pin 4 joints internal lock core retainer plate 3 and external lock core retainer plate 5, the left end of internal lock core retainer plate 3 is connected with by bolt 2 and is used for the mounting baseplate 1 that is connected with bolt works with door-plate, the middle part of external lock core retainer plate 4 is a cylindrical shape, there is the shaft shoulder of one section projection its outer end, external lock core retainer plate 4 is stuck in the endoporus of hard guard ring 6 by this section shaft shoulder plug-in mounting, the right-hand member of external lock core retainer plate 4 is embedded in the hard guard ring 6, this structure is provided for improving the intensity that this tapered end is exposed to outer part, in case hammering; Outer lock core 10 is the torus structure, it is contained in the circular hole of external lock core retainer plate 5, the restriction of the ball 14 by internal lock core retainer plate 3 right-hand members and the right-hand member inwall of external lock core retainer plate 5, outer lock core 10 can not move along axis direction, but outer lock core 10 can rotate with respect to external lock core retainer plate 5 under the effect of external force; Internal cylinder 9 lateral surfaces are six prismatic surfaces, and it is installed in the hole of hexagon of outer lock core 10, with the rotation of restriction internal cylinder 9 with respect to outer lock core 10.One section hard back-up ring 7 that is provided with keyhole is equipped with on internal cylinder 9 right sides; be used to protect the outer end of internal cylinder 9; the left end of internal cylinder 9 has one section circular hole that is communicated with keyhole; upper and lower two positions of the hole wall of this circular hole are provided with one along the axis direction of internal cylinder 9 cylindricals and see Fig. 4, shown in Figure 6 through to the guiding keyway of left end, and the hard baffle plate 15 that a circle is housed in the inside of this section circular hole is connected slide block 16 with one.Connecting slide block 16 right-hand members is a small column, this small column just in time embeds in the circular pit at baffle plate 15 left ends middle part, connect slide block 16 about the projection feather key portion of both sides just in time insert in the guiding keyway of internal cylinder 9 left end hole walls, there is a small column that is used for mounting spring at the center of connection slide block 16 left ends; Internal lock core retainer plate 3 is equipped with a Connection Block 18 over against the position of internal cylinder 9 left ends versatilely by a through hole, the left end of Connection Block 18 is provided with elongated slot, rotating tongue piece 20 is contained in the elongated slot of Connection Block 18 left ends by jump ring 19, the right-hand member center of Connection Block 18 is provided with the hole of a mounting spring, be provided with the teeth groove that is used for the feather key engagement that is connected slide block 16 at Connection Block 18 right-hand members, see Fig. 4, shown in Figure 6, the feather key that connects slide block 16 upper and lower two lateral processes plays the effect of engaging tooth simultaneously.Between Connection Block 18 and the connection slide block 16 spring 17 is housed, be in latched position state shown in Figure 1 at internal cylinder 9 and outer lock core 10, the inner face of internal cylinder 9 to the distance D of the Connection Block right-hand member field of conjugate action greater than the engagement end face of connection slide block 16 distance D 1 to the feather key outer face; Be in shown in Figure 3 separating under the sealed location status at internal cylinder 9 and outer lock core 10, the mating face of pellet shot from a slingshot 11 and outer pellet shot from a slingshot 12 all just in time flushes in the mating face of internal cylinder 9 and outer lock core 10 in each group, internal cylinder 9 left ends leave the space can allow internal cylinder 9 move to left end under the effect that is subjected to external force, sees Fig. 5, Fig. 6.

Be provided with in the internal cylinder 9 three rows be the equally distributed pellet shot from a slingshot of " bifurcation " font hole (see among each figure only be a row pellet shot from a slingshot hole wherein) and with this corresponding " bifurcation " font keyhole as shown in Figure 2 in three row pellet shot from a slingshot holes, every row's pellet shot from a slingshot hole has 4; The pellet shot from a slingshot hole of the sidewall of outer lock core 10 and internal cylinder 9 also is provided with three rows correspondingly and is the equally distributed pellet shot from a slingshot of " bifurcation " font hole, in each pellet shot from a slingshot hole to internal cylinder 9 and outer lock core 10 marble spring 13, outer pellet shot from a slingshot 12 and interior pellet shot from a slingshot 11 is housed all.

Shown in Figure 1, be under the sealed state at internal cylinder 9 and outer lock core 10, promptly in having the mating face of pellet shot from a slingshot 11 and outer pellet shot from a slingshot 12 not under the location status on the mating face of internal cylinder 9 and outer lock core 10, internal cylinder 9 can freely be rotated in the lock core cover with outer lock core 10, therefore, can not destroy internal cylinder 9 by boring bar tool; When the key 8 of unblanking of this lock inserts keyholes to Fig. 3, during state position shown in Figure 4, the mating face of pellet shot from a slingshot 11 and outer pellet shot from a slingshot 12 all just in time flushes in the position, mating face of internal cylinder 9 and outer lock core 10 in each group, the released state that promptly is in, at this moment the front end of key 8 has also overcome the elastic force of spring 17, to connect slide block 16 by hard baffle plate 15 releases outside the left side of internal cylinder 9, continue to promote and key 8, internal cylinder 9 can move and make to left end and connect on the slide block 16 with respect to outer lock core 10, the feather key of lower process finds and inserts in the teeth groove of Connection Block 18 right-hand members, as Fig. 5, shown in Figure 6, make connection slide block 16 and Connection Block 18 engagements, being rotated further key 8 can unblank by 20 rotations of Connection Block 18 drive rotation tongue pieces.

The anti-pirate of the open function of this lock is: do not having under the situation of this lock key, even if adopt the pirate of the open instrument to make the mating face of interior pellet shot from a slingshot 11 and outer pellet shot from a slingshot 12 flush in the mating face of internal cylinder 9 and outer lock core 10, allow internal cylinder 9 and outer lock core 10 be in released state, owing to connect slide block 16 and Connection Block 18 not engagement as yet, rotation internal cylinder 9 can't drive 20 rotations of rotation tongue piece and unblank, even if this state is pressed into internal cylinder 9 down, owing to connect in the circular hole that slide block 16 still is in internal cylinder 9 left ends can't with Connection Block 18 engagements, therefore also can't drive Connection Block 18 and drive and rotate tongue pieces 20 and rotate and unblank; Under the locked state of not removing internal cylinder 9 and outer lock core 10, even if adopting the pirate of the open instrument will connect slide block 16 ejects internal cylinder 9 and is pressed on the Connection Block 18, since the inner face of internal cylinder 9 to the distance D of the Connection Block right-hand member field of conjugate action greater than the engagement end face of connection slide block 16 distance D 1 to the feather key outer face, connecting slide block 16 deviates from outside the circular hole of internal cylinder 9 left ends, internal cylinder 9 still can't drive Connection Block 18 in company with the synchronous rotation of outer lock core 10 and rotate and unblank, and the protective action of hard baffle plate 15 is to prevent that the pirate of the open instrument from applying torsional moment to it and driving Connection Block 18 and drive and rotate tongue pieces 20 and rotate and unblank.

Claims

1. an anti-pirate of the open ball lock head includes the internal cylinder that is contained in the outer lock core hole, is contained in marble spring and outer pellet shot from a slingshot in the described outer lock core pellet shot from a slingshot hole, is contained in the interior pellet shot from a slingshot in the described internal cylinder pellet shot from a slingshot hole, and rotates tongue piece, it is characterized in that:

In the circular hole of the lock core cover that the restrictive axial that described outer lock core is contained in versatilely moves; Described internal cylinder and described outer lock core are under the latched position state, outside the inner of described internal cylinder, are provided with the space that allows this internal cylinder move inward;

The inner of described internal cylinder is provided with one section circular hole that is communicated with keyhole, and the connection slide block is housed in this circular hole, is provided with on the hole wall of this circular hole and the described gathering sill that is connected the feather key engagement of slide block; In the through hole of the described lock core cover of the inner of described internal cylinder, a Connection Block that is connected with described rotation tongue piece is housed versatilely, this Connection Block is equipped with spring with described the connection between the slide block, this Connection Block is connected in the middle of the two one of slide block and is provided with engaging tooth with described, and another part is provided with the engagement teeth groove; Be under the latched position state between described internal cylinder and described outer lock core, the inner face of described internal cylinder arrives the distance of described feather key outer end greater than the engagement end face of described connection slide block to the distance of described Connection Block engagement end face.

2. anti-pirate of the open ball lock head according to claim 1 is characterized in that: having a side that engages at least between described internal cylinder and the described outer lock core is the plane.

3. anti-pirate of the open ball lock head according to claim 1 and 2 is characterized in that: described connection slide block is equipped with the hard baffle plate towards an end of keyhole; Described internal cylinder is equipped with one section hard back-up ring that is provided with keyhole outside key port one end; The end that described lock core is enclosed within key port is embedded in the hard guard ring.

4. anti-pirate of the open ball lock head according to claim 1 and 2, it is characterized in that: described lock core cover is connected and composed by two parts, between the inner face of described outer lock core and described lock core cover ball is housed, the inner of described lock core cover is connected with mounting baseplate by bolt.