CN2428543Y - Pin-type lock and key - Google Patents

Abstract

The utility model relates to a pin-type lock and a key, and is characterized in that pin posts which have changing length and are provided with cylindrical steps are arranged in a lock core at one side of a key hole and in a pin hole on a lock cover, the key is provided with matched curved grooves according to the length of the pin posts, and key teeth which are arranged and formed in the grooves of the curved grooves force the cylindrical steps to shift to drive the pin posts to move when the key is inserted into the lock core, so the lock core can be rotated easily in the lock cover and the lock can be opened without difficulty; the pin posts come back into the lock cover and the pin hole is closed and locked, when the key is pulled out. Therefore, the utility model has the advantages of good durability, good security performance, and practical and convenient performances.

Description

Pin formula tapered end and key

The utility model is a kind of pin formula tapered end and key.Belong to the cylinder lock technical field that has tumbler pin.

Known tapered end is as being used in the cabinet lock, the drawer lock, tapered end on the door lock mostly is the cylinder type tapered end, they are generally by the lock core of being with keyhole, lock tube, overcoat and the shift fork composition that is fixed in the lock core afterbody, can on the lock tube body of lock core keyhole place and correspondence, the pellet shot from a slingshot hole be set and install pellet shot from a slingshot additional and spring, utilizing the pellet shot from a slingshot of the spoon crest pressure zone spring that corresponding on the key pellet shot from a slingshot matched presets to make lock core eliminate the obstruction of pellet shot from a slingshot between lock core and lock tube is able to rotary locking cylinder and opens lockset by shift fork, it is not strong that this traditional locking mechanism is considered to confidentiality always, main cause is that wherein the wearing and tearing of pellet shot from a slingshot and spring mechanical are big, easily aging again, application life is short, the key spoon tooth evagination that it was equipped with very easily duplicates imitation.

The purpose of this utility model provides a kind of confidentiality durability and better sells formula tapered end and key.

The utility model is to realize like this, pin formula tapered end and key have the shell of comprising, the lock tube of cover pin-and-hole with lock, the lock core of core pin-and-hole with lock and keyhole and shift fork are at interior tapered end and key, above-mentioned shift fork is fixed in the lock core afterbody by the collar and pin, has the stopping means of forming by cannelure and ring segment between lock tube and the lock core, its improvements are that the lock core pin-and-hole of lock core is arranged on the side of lock core keyhole, the pin-and-hole cross section be the figure of eight before, back diplopore, preceding hole and keyhole are adjacent, metapore is cut logical through preceding hole and key piece, the back hole sleeve of the corresponding lock core pin-and-hole of lock tube be provided with can be logical with lock core pin-and-hole metapore pipe the lock tube pin-and-hole, lock tube pin-and-hole cross section is " O " font, have size between lock core pin-and-hole metapore and the lock tube pin-and-hole and mate the pin that also can in lock tube pin-and-hole and lock core pin-and-hole, slide up and down with vestibule, have size and the preceding hole coupling of lock core pin-and-hole and the step that can in the preceding hole of lock core pin-and-hole, slide up and down on this pin, step towards the table top of keyhole and adjacent key hole wall in one plane, step central authorities also are connected with a cylindrical step, pin, lock pin is formed in step and cylindrical step such as above-mentioned stack successively, described key both sides spoon face is respectively equipped with the curved groove of vallecular cavity size and above-mentioned cylindrical step coupling, the length of spoon tooth height and corresponding each pin coupling in the groove that curved groove forms, and the tooth number of spoon tooth equates with the pin number, like this, when key does not enter lock core, lock pin in the pin lower end in the lock core pin-and-hole is in the lock tube pin-and-hole, thereby hindering lock core rotates in lock tube, tapered end is blocking, and when key inserts in the lock core keyhole, when if the curved groove of key such as above-mentioned its spoon tooth height mate with lock pin length respectively, can make lock pin in the round with its cylindrical step along the moving of curved groove, thereby and under the supporting role of spoon tooth, make it arrive lock core periphery height simultaneously and lock core is removed obstacles rotated freely in lock tube and pass through lock core afterbody shift fork unlatching lockset in pin bottom surface in two ends up and down.Extract key once again out, lock pin loses support and falls and insertion lock tube pin-and-hole because of conducting oneself with dignity, tapered end reenters locking states, obviously, it is this that to fall to opening and closing wear-out part lock pin that the locking mechanism of lockset adopted by the pin lifting pin much bigger more than the intensity of the more piece pellet shot from a slingshot of general cylinder lock especially spring, so its durability, reliability is strengthened greatly.Again because the pin spoon spoon tooth that the utility model adopts is recessed showing in the curved groove of spoon sheet, bring suitable difficulty to mechanism's processing, and the spoon tooth height of every key is that all each is different for the form of curved groove, not having Digit Control Machine Tool one class high-tech process equipment and means to be difficult to imagination has simpler technology can carry out single-piece and even batch process, therefore this in the ordinary course of things tapered end is especially sold the very difficult imitation of spoon or is duplicated individually, and this has just improved its confidentiality widely.

Further specify below in conjunction with accompanying drawing.

Accompanying drawing is depicted as the structural representation of a utility model pin formula tapered end and a specific embodiment of key, 1-key wherein, 2-shell, 3-lock tube, 4-lock core, 5-lock pin, 6-ring segment, the 7-collar, 8-shift fork, 9-curved groove, 10-cannelure, 11-keyhole, 12-lock tube pin-and-hole, 13-lock core pin-and-hole, the 14-pin, the 15-pin, 16-step, 17-cylindrical step.

Pin formula tapered end of the present utility model and key have copper lock core (4), be set with copper lock tube (3) on the lock core (4), lock tube (3) is gone up by an iron shell (2) big envelope, one end of the external lockset dead bolt of lock core (4) is that afterbody is by the metal collar (7), pin (14) affixed metal shift fork (8), lock core (4) connects the other end of shift fork (8) one ends for can insert the keyhole (11) of key (1), correspondence is provided with the lock core pin-and-hole (13) that five cross sections of the two every rows of row are the figure of eight on the lock core of keyhole channel both sides, have the every row of 8 rows five holes on lock tube (3) body of corresponding lock core pin-and-hole (13) metapore and be the per 90 ° of arcs of warp-wise two row's equally distributed lock tube pin-and-holes (12) arranged side by side, lock core (4) has and lock tube pin-and-hole (12) with lock tube (3), lock core pin-and-hole (13) vestibule coupling, the long interior spoon of curved groove (9) tooth with key (1) of its pin just mates, its pin (15) can be in vestibule the lock pin (5) that slides of easy on and off, lock pin (5) is three layers of combination, wherein the changeable stub of length is pin (15), has the pillar step that an energy slides up and down on the pin (15) in lock core pin-and-hole (13), the adjacent wall of the table top of step (16) and keyhole isoplanar, this dovetail groove type structure can prevent laterally shifting out of pin (15), step (16) table top central authorities also are provided with cylindrical step (17), in the present embodiment, the lock pin of these three layers of combinations is processed by a metal material integral body.For prevent that lock core (4) from moving axially in lock tube (3), also be provided with between lock tube (3) and the lock core (4) restriction lock core (4) axial displacement by cannelure (10) and be installed on the stopping means that the interior ring segment (6) of cannelure (10) is formed.After lock pin (5) is inserted in the pin-and-hole of lock tube and lock core, because the big envelope effect of shell (2) and can not leaking outside.The key of this tapered end (1) is the copper dull and stereotyped tip key piece of a slice, and the top of the spoon sheet both sides spoon face of insertion lock core or bottom are according to curved groove of pin (15) the size supporting cutting of difference of each five lock pin (5) in two row's lock tube pin-and-holes (12), the lock core pin-and-hole (13).For convenience of the user, the positive and negative both sides of key can both be used, curved groove corresponding with above-mentioned curved groove of supporting cutting also can be distinguished in bottom or top at spoon sheet both sides spoon face open curve groove, key can arbitrarily be inserted when the user undoes the lock like this and needn't be carefully to keyhole, in case key inserts keyhole, only the key half-twist can need be realized the unlatching of locking.The utility model pin formula tapered end of Gou Chenging and key are reasonable in design, truly feasible through sample lock probationary certificate thus, have good confidentiality, characteristics that durability is good, practical and convenient.

Claims (3)

1, a kind of pin formula tapered end and key, it comprises shell, the lock tube of cover pin-and-hole with lock and shift fork are at interior tapered end and key, above-mentioned shift fork is fixed in the lock core afterbody by the collar and pin, has the stopping means of forming by cannelure and ring segment between lock tube and the lock core, it is characterized in that the lock core pin-and-hole of lock core is arranged on the side of lock core keyhole, before its cross section is the figure of eight, back diplopore, preceding hole and keyhole are adjacent, metapore is cut logical through preceding hole and key piece, the back hole sleeve of the corresponding lock core pin-and-hole of lock tube be provided with can be logical with lock core pin-and-hole metapore pipe the lock tube pin-and-hole, this lock tube pin-and-hole cross section is " O " font, have size between lock core pin-and-hole metapore and the lock tube pin-and-hole and mate the pin that also can in lock tube pin-and-hole and lock core pin-and-hole, slide up and down with vestibule, have size and the preceding hole coupling of lock core pin-and-hole and the step that can in the preceding hole of lock core pin-and-hole, slide up and down on this pin, step towards the table top of keyhole and adjacent key hole wall in one plane, step central authorities also are connected with a cylindrical step, lock pin is formed in pin step and cylindrical step such as above-mentioned stack successively, described key both sides spoon face is respectively equipped with the curved groove of vallecular cavity size and above-mentioned cylindrical step coupling, the length of spoon tooth height and corresponding each pin coupling in the groove that curved groove forms, and the tooth number of spoon tooth equates with the pin number

2, pin formula tapered end according to claim 1 and key, the lock core pin-and-hole that it is characterized in that described lock core are five of the every rows of two rows, and their correspondences are arranged on two sides of lock core keyhole.

3, according to claim 1,2 described pin formula tapered end and keys, it is characterized in that the lock tube pin-and-hole on the described lock tube is the every row of 8 rows five holes, the metapore of their corresponding lock core pin-and-holes is the per 90 ° of arcs of warp-wise two rows arranged side by side and is evenly distributed on the body.