CN2130872Y - Universal anti-theft door lock - Google Patents

Abstract

The utility model relates to a popular anti-theft door lock which is characterized in that the structure of the lock mouth is changed into a V type concave and convex wedging structure, so that the lock seam is not in a line, and a favorable anti-sawing function is achieved; a lock button (1) and a lock body (3) are both provided with reinforced fixing plate (2) (6), so that the implement of illegal means such as disassembly, strike, etc. can be prevented efficiently; a lock bolt (5) is changed into a square body with a sliding head, so that material is reduced, the combination between the lock button (1) and the lock body (3) is reinforced, and the functions of automatic locking, prevention of prizing and prevention of inserting and squeezing can be formed easily. The utility model has the advantages of complete functions, low cost, convenience and reliability and belongs to a product capable of replacing various door locks for buildings and houses.

Description

Universal anti-theft door lock

The utility model relates to a kind of popular safe-guard door lock.

Fig. 3, Fig. 4 are a kind of popular dual fail-safe pin tumbler lockes of being familiar with that is.Its structure is mainly had the snap close (1) of reinforcement fixed head (2) by orthoscopic, orthoscopic does not have the lock body (3) of strengthening fixed head, special-shaped marble lock core (8), and sliding-tongue (5) is total to be constituted, though have advantages such as small and light, structure letter, cost be low, market clout is also bigger; But its non insurance and insecurity become increasingly conspicuous.1, the fashionable slit that often exists about 5MM of door leaf and the pass between the doorframe of general door, and this moment snap close (1) and lock body (3) between also often have identical seam about 2MM.2, robber's row is stolen the characteristics of psychology, is to wish its action energy " fast determining fast ", and " taking by strategy " is very wise move, and " stealing " is good plan, and " storm and capture and take by force " is stupid plan.3, the capable robber's method at existing dual fail-safe pin tumbler lock robber mainly contains two kinds: the one, and squeeze with foreign matter (if the thick identity card of 0.5MM and less than the thick iron plate of 2MM etc.) and to dial slotting back skating tongue (5) and scurry into row robbers-robber and will lean on the door shield (11) on the lock place doorframe to prune earlier, insert crowded again with thin hard sheet.The 2nd, in unload go out method-of lock body (3) especially the capable robber of high building, the robber does not often get " jumping window goes out " and the safest with " door goes out ".When householder's counter-locking a door, if after the robber scurries into from window etc., availablely just three lock body hold-down screws can be tripped out less than one fen clock time, unload lock body, generous, easily big part property is stolen.

For this reason, the advanced rectilinear safe-guard door lock of two pawls that application number 87204127 is announced, though neater with its function, the advantage that safety is better has influenced vast market, makes former dual fail-safe pin tumbler lock lose vigor; Yet, above-mentioned two kinds of phase-locked ratios, latter's cost sale price higher (every lock price differential is locked ten million yuan of price differential for per 1,000,000 as if ten yuan).Be limited to one period socioeconomic limitation and imbalance, the height of lock valency, yet about directly user's desire to buy.Thereby still influenced popularizing and the reduction of social robbed or burgled rate of safe-guard door lock.

Purpose of design of the present utility model provides a kind of cost sale price minimum (if price 8 yuan), and theftproof performance is good, and insurance function is complete, processes simple and easyly, and small and light can bring the door lock of good economic benefit and social spirit benefit.

The design scheme that reaches this purpose is, snap close (1) and matching surface (12) between lock body (3) and sliding-tongue (5) with as shown in Figure 3, Figure 4 dual fail-safe pin tumbler lock are designed to as shown in Figure 1 and Figure 2 " " " shape conjunction surface (12) and be with foxy side's tongue (5).

Accompanying drawing 1, Fig. 2 describe the structure chart of a kind of embodiment of the design.

Fig. 1, this safe-guard door lock " " " shape conjunction surface structure chart.

Fig. 2, this safe-guard door lock are installed constitutional diagram

Fig. 3, dual fail-safe pin tumbler lock orthoscopic matching surface structure chart

Fig. 4, dual fail-safe pin tumbler lock are installed constitutional diagram

Accompanying drawings the design's functional structure and principle features:

As Fig. 1, Fig. 2: snap close (1) and lock body (3) all design has the fixed head of reinforcement to be respectively (2) and (6), secretly fixing by two screws, and door all can not unload snap close (1) and lock body (3) during the pass, has strengthened anti-collision intensity simultaneously; " " " the shape conjunction surface makes eyelet (12) not on a straight line plane, strengthened anti-saw effect greatly; The fore shaft inclined-plane equals to be with foxy side's tongue (5) to expose bond length Y(Y to get 5～8MM and be advisable strengthening projection on the vertical cheek of fixed head, exposing long limit X gets 8～12MM and is advisable), be with foxy side's tongue (5) both to constitute the function that latches automatically at closing time, also strengthened the combination of snap close (1) and lock body (3), to strengthen fixed heads vertical because of its side's body and two, pick-proof is dialled, anti-plug is squeezed effect so can also play, and has strengthened anti-saw function simultaneously again.Originally the method for operating and the billiard mechanism that are locked in the indoor and outdoor are all same with the dual fail-safe pin tumbler lock.

The design advantage of this popular safe-guard door lock has: 1, function increases and simple in structure, has that pick-proof is dialled, crashproof, anti-saw, anti-ly unloads, interior insurance, multiple function such as locks outward; 2, convenient and practical, the insurance theftproof performance strengthens and the cost valency that disappears is cheap, can save the wealth of society greatly, the spiritual benefit of creating certain economic benefits and bringing because of safety; 3, price is minimum, is beneficial to most to popularize, and various buildings, house door all are suitable for.

The reference numeral explanation:

1, snap close, 2, snap close strengthens fixed head, 3, lock body, 4, the stop button, 5, dead bolt, 6, lock body strengthens fixed head, 7, turn round hand, 8, lock core, 9, door leaf, 10, doorframe, 11, the doorframe gear, 12, the fore shaft seam, 13, the fixing hole for nailing of light and shade.

Claims (2)

1, a kind of popular safe-guard door lock, by snap close (1), lock body (3), lock core (8), the total formation of dead bolt (5), its feature on snap close (1) and lock body (3), be equipped with strengthen fixed head for dark conjunction surface not on the inclined-plane on a plane, make light and shade two matching surfaces always constitute " " " the concavo-convex conjunction surface of shape (12); Dead bolt (5) is designed to be with foxy side's tongue.

2, safe-guard door lock according to claim 1 is characterized in that the projection of bright matching surface on the vertical plane of silent matching surface equals the length Y that exposes minor face with foxy side's tongue.

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