CN2052021U - lock guard - Google Patents

Abstract

A lock guard, the main feature is that a lock guard plate is connected with a numberer, and the numberer controls the parallel and rotational movement of the lock guard plate, so that the lock guard plate is in the state of covering the lock hole or exposing the lock hole respectively. Using the lock protector, the door lock is in a double insurance state, and the door lock itself is not easy to be damaged by immoral people, thereby causing trouble to the user. The utility model is simple to manufacture and low in cost, and is a very effective safety device.

Description

Lock protector

The utility model relates to a kind of door lock protective device.

Existing lock is firm just day by day, firm, resident family's door even wrap iron sheet, but still have 2 maximum shortcomings still unresolved:

If 1 key loss, although iron gate is strongly fortified, any person that holds the key all can get easily and open the door.

2, in case the lock in keyhole in be inserted into splint or other foreign material, key also can't be opened the door.Firm more Door and its lock, the harm that causes thus are also big more.

The purpose of this utility model is to provide a kind of door lock protective device, makes door lock have double insurance, and prevents that foreign matter from entering lockhole, thereby solves above-mentioned two big shortcomings.

The lock-protector principle:

After on the door lock, the lock protecting plate on the lock-protector then covers lockhole, and lock protecting plate is by the control of buzzerphone (similar combination lock) or private mark device, does not allly know lock number or private mark person, all can't remove lock protecting plate, thereby protect lockhole reliably.Need check the number earlier or pull out when opening the door, can remove lock protecting plate then, expose lockhole, turn the key in the lock again private mark.Obviously, desire to open the door and to hold key and know number (or private mark).This makes door that double insurance arranged, and has effectively protected lockhole, makes any foreign matter all can not enter lockhole.

The lock-protector structure:

Lock-protector mainly is made up of three parts: buzzerphone (or private mark device), protect lock body and lock protecting plate.Protecting lock body is installed on the door outside door.Buzzerphone (or private mark device) is installed in and protects in the lock body.Lock protecting plate is installed on and protects in the lock body, and is subjected to protecting the restriction of lock body, can only move along single direction, and this single moving direction is subjected to the control of buzzerphone (or private mark device).Lock protecting plate can drive the lockhole front that moves to built-in lock with hand-lifting or spring, covers lockhole.Lock protecting plate links to each other with buzzerphone (or private mark device), and not to timing, lock protecting plate is stuck, and can not move, so the built-in lock hole is covered reliably number number or private mark.When with number or private mark to timing, lock protecting plate no longer is stuck, and can move, thereby expose the built-in lock lockhole.After door was opened, lock protecting plate can move (driving with hand or spring) at any time and cover the built-in lock lockhole again, and the dialer on buzzerphone or the private mark device can be with hand-lifting disorderly (also can use special device, upset automatically), make others do not see right number.Lock-protector can be made separately, also can be integral with existing built-in lock.

Lock protecting plate can be made by iron plate, (also available foundry goods), (referring to Fig. 4).Its top is a flat board, and wide being slightly less than of plate protected lock body middle guide wide (Fig. 6, f), and thickness of slab is slightly less than and protects lock body middle guide height (Fig. 6, f), therefore can left and right slip in protecting the guide rail of lock body, but other directions motions can not be arranged.Lock protecting plate one side has a vertical panel along center line.When lock-protector is closed (seeing Fig. 2 (a)), this vertical panel is blocked by the private mark device, can not move.This vertical panel then is not blocked when the private mark device aligns private mark, can enter in the elongated slot of private mark device, so lock protecting plate can move to left, thereby expose built-in lock hole (seeing Fig. 2 (b)).Vertical panel can constitute with the vertical flanging of the part of lock protecting plate body, and an also available other iron plate is connected with lock protecting plate through welding or riveted joint.

Protect lock body and can be made (also available foundry goods) by iron plate, referring to Fig. 6, the one side has a large square hole (or hole, garden), as Fig. 6.E, after lock protecting plate is removed, the built-in lock hole promptly thus square hole expose.Some holes or screw are arranged at its bottom, so that be installed on the door.It has the channel form guide rail (to see Fig. 6 in both sides up and down.F), lock protecting plate can left and right slip in this guide rail, and opposite side is installed numberer.

Lock-protector can have multiple form of structure, and Fig. 1, Fig. 2 provide two kinds of form of structure.Among each figure: 1 is number or private mark dish; 2 for protecting lock body, and it is being installed on the door outdoors, is positioned at door built-in lock the place ahead, be able to cover the built-in lock hole; 3 is lock protecting plate, and it can slide in protecting lock body, thereby covers or expose built-in lock; 4 built-in locks that expose after removing for lock protecting plate, 5 is the lockhole of built-in lock.(a) is the lock-protector closure state among Fig. 1 and Fig. 2, and this moment, lock protecting plate 3 all covered door lock; (b) be the lock-protector opening, this moment, lock protecting plate was removed, and door lock exposes, and people can insert the door lock hole with key and open the door.

Description of drawings:

Fig. 1 is the lock-protector schematic diagram with numberer control of the present utility model, and wherein (a) is closure state, (b) is opening.

Fig. 2 is the new lock-protector schematic diagram with the control of private mark device of this practicality, and wherein (a) is closure state, (b) is opening.

Fig. 3 is the structure chart of the lock-protector with the control of private mark device of the present utility model, comprises the rear elevation that protects lock body, front elevation drawing (K to) A-A sectional view and B-B sectional view among the figure.

Among Fig. 1, Fig. 2, Fig. 3: 1-figure disc (or private mark dish), 2-protects lock body, the 3-lock protecting plate, the original built-in lock of 4-, 5-built-in lock hole, 6-lower wall, the 7-mid-game, the last dish of 8-, 9-bolt, the 10-lower wall is pulled pin, the 11-cottor pin, and the 12-mid-game is pulled pin, the last dish of 13-finger, 14-wood screw, 15-wood screw, the 16-spring, 17-hand pin.

Fig. 4 is the shape and structure figure of the utility model with lock protecting plate 3 in the lock-protector of private mark device control.

The schematic diagram that Fig. 5 installs on door for the utility model lock-protector, 18-wood screw among the figure, 19-door-plate.

Fig. 6 is for protecting the shape and structure figure of lock body in the lock-protector of the utility model with private mark device control, comprise front elevation drawing (K to), rear elevation, A-A sectional view, B-B sectional view, C-C sectional view.

Embodiment 1: see Fig. 1.(a) be closure state, people can not directly remove lock protecting plate 3, and this is because lock protecting plate is protected the restriction of lock body 2, can only be moved to the left.And it is moved to the left the control that is subjected to numberer.Figure disc 1 is formed (three gardens dishes draw among the figure) by several gardens dish, has only the number in the dish of garden last (by the numeral that sequences in advance), just can make lock protecting plate 3 to left, thereby expose door lock (scheming (b) state).The structural principle of numberer is with existing combination lock.

Embodiment 2: see Fig. 2 lock protecting plate 3 under the restriction of protecting lock body 2, can only translation in protecting lock body 2, and figure (a) be a closure state, lock protecting plate 3 has covered the built-in lock hole at this moment.Similar with Fig. 1, but control lock protecting plate 3 is to use the private mark device.The rotating shaft of private mark dish 1 is perpendicular to paper.Private mark device structure only aligns private mark with the private mark device in the existing safety cabinet, just can make lock protecting plate 3 to left, thereby expose door lock, reaches the state of figure (b).Certainly private mark dish 1 also can be made up of several, with embodiment 2(Fig. 2) be example.Its concrete structure is (Fig. 3 only is a kind of concrete structure among the embodiment 2) as shown in Figure 3.1 is private mark dish (convenient for opening in the dark, numeral on it or lines can be protruding or recessed) among the figure, and 2 for protecting lock body, and it is by screw 9, and wood screw 14,15 is installed on the door.3 is lock protecting plate, its shape as shown in Figure 4, its horizontal component is installed in and protects in the lock body 2, protect lock body 2 restriction lock protecting plates 3 up and down, forward and backward motion, so lock protecting plate can only left and right slip in protecting lock body (seeing that A-A and B-B among Fig. 3 analyse and observe).6 be lower wall among the figure, it connects mutually by the axle on cottor pin 11 and the private mark dish 1, so private mark dish 1 when rotating lower wall 6 also together rotate.Mid-game 7 reaches upward, and dish 8 skies are enclosed within on the axle of private mark dish 1.The effect of spring 16 is to produce to reverse friction.When rotating private mark and coil 1, lower wall 6 rotates thereupon together, but mid-game 7, on coil 8 and do not rotate.The upper, middle and lower dish is gone up every dish all an elongated slot, the elongated slot that has only these three dishes is to together, and all be in lock protecting plate 3(shape such as Fig. 4) the lamina perpendicularis direction time, lock protecting plate 3 just can move to left (the vertical part of lock protecting plate 3 enters in the elongated slot of three gardens dish just), otherwise vertical of lock protecting plate 3 is blocked (seeing that A-A analyses and observe among Fig. 3) by the upper, middle and lower dish, lock protecting plate 3 can not move to left, and has therefore effectively covered the door lock hole.Same diameter place at the upper, middle and lower dish all is processed with some holes.Last dish (the Fig. 3 that pulls pin.13), mid-game (Fig. 3 that pulls pin.12), lower wall pull pin (Fig. 3 .10) be individually fixed in a certain hole of upper, middle and lower dishes.When desiring to open the door, by certain clockwise more counterclockwise again clockwise direction (or contrary-suitable-contrary) rotate figure disc, can make three elongated slots that coil all aim at the lamina perpendicularis (its principle is identical with the private mark device of existing file cabinet) of lock protecting plate 3 by pulling pin, so the moving hand pin (Fig. 3 that is fixed on the lock protecting plate 3 of available hand-lifting.17), lock protecting plate 3 is moved to the left, the lamina perpendicularis of lock protecting plate 3 enters in the elongated slot of upper, middle and lower dish just.After lock protecting plate 3 moved to left, the keyhole of original built-in lock promptly exposed.After door was opened, the user can move right lock protecting plate at any time, makes it to cover again lockhole, and the private mark dish can arbitrarily rotate, and made the upper, middle and lower dish go to the optional position, so lock protecting plate 3 can't move to left, the built-in lock hole is effectively protected.

The lock-protector mounting means: see Fig. 5, double dot dash line part (Fig. 5,19) is a door.

Claims (1)

1. A lock guard, including a number device or a combination device, is characterized in that it also includes a lock guard body [2] and a lock guard plate [3]. The lock guard body [2] is made of iron plate, and one side There is a large square hole (or round hole) with several holes or screw holes at the bottom for installation on the door. There are grooved guide rails on the upper and lower sides, and the lock guard [3] is installed in this guide rail and can slide left and right. , the other side is equipped with a number device (or cipher device), and the lock protection plate [3] is also made of iron plate, the width of the plate is slightly smaller than that of the upper and lower guide rails of the lock protection body [2], and the thickness of the plate is also slightly smaller than that of the guide rail groove The width is such that it can be installed in the guide rail and slide in parallel. There is a vertical plate along the center line on one side of the lock guard. When the lock guard is closed, the vertical plate is restricted by the combination device and cannot move. When the lock guard is opened, the vertical plate Then it is aligned with the rectangular groove of the cipher device, so the lock protection plate can slide in parallel, the vertical plate is embedded in the groove of the cipher device, and the square hole (or garden hole) is opened on the other side, and the vertical plate can be used with the lock protection plate Part of the main body is formed by vertical folding, and another piece of iron plate can also be connected with the main body of the lock guard by welding or riveting.

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