CN2260856Y - Door built-in lock protector - Google Patents

Abstract

The utility model relates to a door built-in lock protector for protecting key holes of built-in locks of various doors, belonging to the class of hardware lockset. The utility model is composed of a lock cover part (a cipher mechanism and a bolt mechanism) and a bottom plate assembly, wherein, a hole, a spacing pit and cipher are arranged on the lock cover; a turn knob shaft can be inserted into the hole; the hole of the lock cover in which the shaft is inserted can be fixedly coupled with a positioning sheet hole through a driven sheet hole; a bolt can move in a bolt frame; after the cipher is aligned, two notches of the driven and positioning sheets are coincident; one end of the bolt can enter the other end of the notch, quitting a block clip for unlocking; the lock cover and the bottom plate are connected through a hinge; a mounting hole through which the fixed connection of a lock hole of the door and the door body can be watched and the block clip are arranged on the bottom plate. The utility model is a lockset having the advantages of novel model, simple structure, convenience and practicability and lower cost; the utility model has the advantages of prying protection, drilling protection, discharge protection, etc.

Description

Door built-in lock protector

The utility model provides a kind of built-in lock protector, belongs to five metals lockset kind product.

Present domestic security door market demand trend is high-grade luxurious, and its pick-proof and theftproof aspect are all stronger.But it is found that in application the tapered end keyhole is filled in foreign material or poured glue into by child and bad person easily on the security door, cause owner's lock that can't open the door, serious have to destroy security door voluntarily.People have begun to pay attention to a built-in lock protector to the protective effect of security door tapered end keyhole thus.The door built-in lock protector kind of selling on the market mainly contains four kinds, divides into from the unlocked configuration of its built-in lock protector: little key unlocking draws the formula of pulling, three passwords to check the number and draw the formula of pulling, and key passwords is drawn the formula of pulling, and the rotation password draws the formula of pulling.Think that through people's application in practice most of door built-in lock protector pick-proof is strong, versatility is bad, shortcomings such as easy break-down, use inconvenience.In order to solve top described problem.

The utility model purpose is to provide a kind of novel door built-in lock protector, and the unlocked configuration of this kind door built-in lock protector is rotation password check mark covering type.

The utility model is by as follows: locking closure, Cipher mechanism, spring bolt mechanism, the end pull, hinge etc. constitutes.This built-in lock protector comprises Cipher mechanism; it is characterized in that: locking closure is provided with spring bolt mechanism; pull in the hinge mode and link at the locking closure and the end; pull and be provided with shelves card and visible at least one built-in lock head hole at the end; the structure of at least two installing holes; after the Cipher mechanism rotation that is provided with on its locking closure is checked the number; U-shape lock tongue half garden curved end in the spring bolt mechanism enters breach automatically; U-shape lock tongue openend withdraws from the shelves card automatically and constitutes unlocking condition simultaneously; when locking closure is lifted buckle into and the rotational password knob after; U-shape lock tongue half garden curved end is by jack-up, and U-shape lock tongue openend enters in grade card automatically and constitutes blocking simultaneously.According to above-mentioned said spring bolt mechanism, it is characterized in that: dead bolt frame and locking closure concrete mutually, be provided with slidably U-shape lock tongue in the dead bolt frame, in the U-shape lock tongue stage clip be housed, the fixed end of stage clip effect was provided by punching press or foundry goods structure on the dead bolt frame and is limited when the U-shape lock tongue slided.

Accompanying drawing has provided embodiment of the present utility model, and Fig. 1 is the blocking front view.Fig. 2 looks partial sectional view for the blocking right side.Fig. 3 is a blocking U-shape lock tongue drawing of site.Fig. 4 is a unlocking condition U-shape lock tongue drawing of site.Fig. 5 pulls front view for the end, back of unblanking.

Describe in detail below in conjunction with accompanying drawing, referring to Fig. 1.Locking closure among the figure (1), password knob (2), hinge (6), riveting fourth (18) (19).On locking closure (1) surface, be suppressed with digital number, centre bore is provided with the password knob (2) of Cipher mechanism, there is one redly to check the number on its password knob (2) in order to rotation, locking closure (1) is pulled with hinge (6) end of with and is linked, fixed with riveting fourth (18), riveting fourth (19) is in order to the spring bolt mechanism in the fixed locking closure (1).

Referring to Fig. 2 and Fig. 3.(3), shelves card (5), hinge (6), rotation axis (7), spacer (8), driven disc (9), U-shape lock tongue (10), dead bolt frame (11), stage clip (12), limited pit (13), steel ball (14), stage clip (15), bearing pin (16), compression spring (17), riveting fourth (18) (19) are pulled in locking closure among the figure (1), password knob (2), the end.

In Cipher mechanism.Password knob (2) inner rotary partly is injection moulding or foundry goods moulding, its inboard two ends are equipped with steel ball (14) and stage clip (15) respectively and are acted in locking closure (1) the upper limit hole (13), the rotation axis (7) of the fixed metal in the interior center of password knob (2), this rotation axis (7) slides through driven disc (9) centre bore and spacer (8) the centre bore concrete mutually that is arranged in the locking closure (1), its driven disc (9) and spacer (8) profile are the round shape sheet with breach, driven disc (9) is in compression spring (17) effect all the time, spacer (8) setting-in is consolidated with bearing pin (16), and the last breach of driven disc during blocking (9) is gone up breach with spacer (8) and do not overlapped.Any circumference rotational password knob this moment (2) all can not be unblanked.Rotate when up time rotational password knob (2) can make spacer (8), its spacer (8) upper pin (16) drives driven disc (9) and rotates, and driven disc (9) spring (17) the effect institute stop place that is stressed is constant when inverse time rotational password knob (2).

In spring bolt mechanism.Dead bolt frame (11) is punching press or foundry goods moulding, dead bolt frame (11) and locking closure (1) riveting fourth (19) concrete mutually, be provided with slidably U-shape lock tongue (10) in the dead bolt frame (11), stage clip (12) is housed in the U-shape lock tongue (10), and the fixed end of U-shape lock tongue (10) when work stage clip (12) effect is gone up punching press or foundry goods structure institute by dead bolt frame (11) and is provided and limit.When half garden curved end of U-shape lock tongue (10) is positioned sheet (8) and driven disc (9) jack-up, the interior stage clip of U-shape lock tongue (10) (12) compression, the openend of its U-shape lock tongue (10) enters the shelves of pulling in (3) at the end automatically and blocks in (5), and constitutes blocking.

Referring to Fig. 4 (Fig. 2, Fig. 3).Locking closure among Fig. 4 (1), spacer (8), dead bolt frame (11), stage clip (12), bearing pin (16), the process of unblanking at first is, up time rotational password knob (2) makes the digital number stop of regulation relatively of red point, then during another mistake rotational password knob (2) make red point relatively the digital number of another regulation stop, locking closure this moment (1) can be opened and expose a built-in lock head (A).Rotation password button (2) rotates spacer (8) in the process of unblanking, driving driven disc (9) by spacer (8) upper pin (16) rotates, the digital number position that stops regulation after up time is rotated is the position that driven disc (9) is gone up the relative U-shape lock tongue of breach (10) semicircle curved end, the digital number position of the regulation that stops is the position that spacer (8) is gone up the relative U-shape lock tongue of breach (10) semicircle curved end after rotating during another mistake, overlaps so realize two breach.The semicircle curved end of U-shape lock tongue (10) is entered in the breach of two coincidences by stage clip (12) effect automatically simultaneously, and the openend of U-shape lock tongue (10) withdraws from shelves cards (5) automatically, and constitutes unlocking condition.

Referring to Fig. 5.(3), installing hole (4), shelves card (5), hinge (6) are pulled in locking closure among the figure (1), the end, visible door built-in lock head (A) hole.Pull (3) and locking closure (1) and link in hinge (6) mode at the end, the end pull the compacting of (3) upper punch do or be provided with can be when locking the openend of U-shape lock tongue (10) enter the shelves cards (5) and the visible structure of at least one built-in lock head (A) hole, at least two installing holes (4) it in.

The door built-in lock protector of this kind covering type can manufacture the protection to a plurality of built-in lock heads of a door (A); but its password knob circumference rotates arbitrarily; and adopt two players to feel strengthening and rotate reliability, inner plane is pulled at the end and Men Tike is firmly fixed, can't dismantle; easy for installation; it is less with door built-in lock head plane gap that face is equalized at the end, and active area is bigger, the illumination of also can packing in the locking closure; the replacing battery is convenient, and the built-in lock of implementing to open the door is quick and convenient.This is novel to be a kind of modern design, simple in structure, cheap, economical and practical, the lockset of the various door of the protection of dependable performance built-in lock.And have pick-proof, anti-drilling, anti-ly multiple characteristics such as unload, will also create huge economic benefit to the great sense of security of user to the implementer.

Claims (3)

1, a kind of built-in lock protector; form by locking closure (1), password knob (2), base plate (3), hinge (6), rotation axis (7), spacer (8), driven disc (9), U-shape lock tongue (10), dead bolt frame (11), stage clip (12), steel ball (14), stage clip (15), compression spring (17), rivet (18), (19); it is characterized in that: locking closure (1), with base plate (3), connect by hinge (6); locking closure (1) is equipped with spring bolt mechanism, Cipher mechanism, and base plate (3) is provided with shelves cards (5), door built-in lock head (A) hole, installing hole.

2, door built-in lock protector according to claim 1 is characterized in that: the dead bolt frame (11) of spring bolt mechanism and locking closure (1) concrete mutually, be equipped with U-shape lock tongue (10) and stage clip (12) in the dead bolt frame (11).

3, door built-in lock protector according to claim 1; it is characterized in that: the inboard two ends of password knob (2) of Cipher mechanism are equipped with stage clip (15), steel ball (14) respectively; knob (2) and rotation axis (7) concrete mutually; rotation axis (7) is by the centre bore concrete mutually of driven disc (9) centre bore and spacer (8); driven disc (9) and spacer (8) profile are the round shape sheet with breach, and spacer (8) setting-in is consolidated with bearing pin (16).

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