CN2090406U

CN2090406U - Noiseless automatic safety cylinder door lock

Info

Publication number: CN2090406U
Application number: CN 90222606
Authority: CN
Inventors: 姚少臣
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-23
Filing date: 1990-10-23
Publication date: 1991-12-11

Abstract

The utility model relates to a noiseless automatic safety door lock which is composed of a cylinder lock head, a spring lock tongue, a reed, a safety button, a linkage mechanism, a handle, a main lock housing, an auxiliary lock housing, etc. The utility model is characterized in the opening of the square-head lock tongue which is provided with a shallow slot is controlled by the T-shaped reed, and the lock tongue is often concealed rather than being exposed; the main lock housing which is convex on the side surface of a door leaf is engaged with the auxiliary lock housing which is arranged and recessed in a doorframe, and a lock seam and a door seam which are staggered can be formed; the auxiliary lock housing is additionally provided with a fastener to cover the lock seam, and no seam is provided for a theft to pry; the auxiliary lock housing is reinforced through contra screw bolts, and accordingly, the door leaf is difficult to open by collide. When a door is closed, the auxiliary lock housing contacts with the lock tongue, the reed leaves, and the door is locked. The utility model has the advantages of anti-prying performance, anti-collision performance, no noise and convenient operation. The door can be closed without a key.

Description

Noiseless automatic safety cylinder door lock

The utility model relates to pin tumbler lock.

Pin tumbler lock is low price, uses common flexibly door lock, and huge numbers of families generally adopt.But the common spring door lock can not pick-proof, crashproof.Safety performance must be locked with key when insurance lock is locked a door preferably, causes the inconvenience in the use, and all will send impact noise when locking a door, and it is annoying to disturb the people!

The purpose of this utility model is to overcome the defective of prior art and provides a kind of pick-proof, crashworthiness good, the noiseless voluntary insurance pin tumbler lock that prevents noise, locks and need not key.

The utility model is achieved in that the dead bolt that adopts the square toes shape on the pin tumbler lock of being made up of ball lock head, spring latch, safety button, link gear, handle and master, pair lock housing, it is hidden in the main lock housing, has shallow slot on the dead bolt, the reed that it is fixed on the main lock housing is controlled, and protects spring on the reed.Main lock housing termination is 90 ° of knuckles, wraps on the door leaf corner, and protrudes from the door leaf side surface.Pay lock housing and be shaped as ⊥ shape, and lid is housed, it is installed on the doorframe the pin bolt with two pieces, and girth member is housed, and forms eyelet wired-AND gate suture with the main lock housing of protruding in the recessed doorframe of the step low part of pair lock housing and staggers mutually.

Press the noiseless voluntary insurance pin tumbler lock of the utility model design, adopt the square toes dead bolt to replace oblique dead bolt, eyelet and crack between a door and its frame are staggered, again eyelet is covered, reached the crashproof purpose of pick-proof.Dead bolt is controlled by reed, and dead bolt contact collision is at closing time paid a lock housing and made reed leave dead bolt shallow slot door to be locked, not only noiseless but also need not key and lock safety and convenient.

Description of drawings.

Fig. 1 is the utility model structural representation (being assumed to be the often latent state of dead bolt when opening the door).

Fig. 2 is for paying dead bolt lateral reinforcement figure.

Embodiment describes in further detail below in conjunction with accompanying drawing.

Noiseless voluntary insurance pin tumbler lock (referring to Fig. 1-2) is the improvement of former pin tumbler lock, is made up of ball lock head, spring latch, safety button (34), link gear, handle and master, pair lock housing (25), (5).

Dead bolt (38) is made the square toes shape and is had shallow slot (39), it is hidden in the main lock housing (25), the action of dead bolt (38) is controlled by reed (35), reed (35) is asymmetric T font, be installed on main lock housing (25) front, reed (35) other end stretches out in outside main lock housing (25) edge by main lock housing (25) edge convex line breach becomes contact, reed (35) vertical body is passed the shallow slot (39) that square toes dead bolts (38) are inserted in main lock housing (25) flat hole, the elastic force of reed (35) is towards dead bolt (38), and the preceding dead bolt (38) of locking is controlled and can not be ejected by the vertical body of reed (35).Reed (35) is equipped with protecting cover (28), and both are screwed simultaneously on main lock housing (25), and it is asymmetric that protecting cover is Shape.

Main lock housing (25) termination is 90 ° of knuckles, wrap on the corner of door leaf (22), being drilled with 3 screws wood screw that fixes on the knuckle uses, the main lock housing (25) that is contained on the door leaf (22) protrudes from door leaf (22) side surface, just tapered end protrudes from door leaf (22) side, makes crack between a door and its frame line and eyelet line become bending and staggers.

Paying lock housing (5) is the ⊥ shape, and lid (2) is housed, the crashproof girth member of bar shaped (3) that is equipped with up and down of paying lock housing (5) covers eyelet, fix with wood screw, the middle raised step shape that forms, ledge surface flushes with doorframe face crack between a door and its frame line during installation, and step low part (4) then embeds within the recessed doorframe (8) and flushes with the eyelet line, and matching with the main lock housing (25) of above-mentioned protrusion door leaf (22) side forms eyelet and crack between a door and its frame staggers mutually.

Pay lock housing (5) on the plane that is rectangle with 2 special pin bolt (13) are installed, there are rammed 2 flats to protrude halfround bar slice (1) on the screw rod of this bolt, cap head (15) is smooth no well, it is interior with label (16) covering to be embedded in doorframe (8), makes the burglar be difficult to set about.

Safety button (34) changes and is located on main lock housing (25) side, connects into press type down, and red, green button head is housed to show difference.

Chain is installed being pressed into the arc metal plate that is drilled with 2 holes below the securing member nut of pin bolt (13), the chain end has annulus, and its length to be being inserted in handle and the length of slightly having a surplus, with the opening angle of control gate to the usefulness of observation outdoors.

This lock dead bolt often conceals and seldom reveals, when door is unlocked, the vertical body of reed (35) is positioned at dead bolt (38) shallow slot (39), at closing time, dead bolt (38) contact is collided with pair lock housing (a 5) edge and is made reed (35) leave dead bolt (38) shallow slot (39), and dead bolt (38) enters under spring action pays lock housing (a 5) rectangle hole (11), and door is promptly locked, do not disturb the annoying noise of people, the user needn't lock with key can relieved leaving away.

Claims

1, a kind of noiseless voluntary insurance pin tumbler lock is made up of ball lock head, spring latch, safety button (34), link gear, handle and master, pair lock housing (25), (5), it is characterized in that:

A. dead bolt (38) is the square toes shape and has shallow slot (39), and it is hidden in the main lock housing (25);

B. dead bolt (38) is fixed on reed (35) control on the main lock housing (25), on protecting cover (28) is arranged;

C. main lock housing (25) termination is 90 ° of knuckles, wraps on door leaf (22) corner, and protrudes from door leaf (22) side surface;

D. pay lock housing (5) and be shaped as ⊥ shape, and lid (2) is housed;

E. pay lock housing (5) and pin bolt (13) is installed on the doorframe (8), and girth member (3) is being housed up and down with 2 pieces;

F. the step low part (4) of paying lock housing (5) is recessed in doorframe (8), forms eyelet wired-AND gate suture with the main lock housing of protruding (25) and staggers mutually.

2, pin tumbler lock as claimed in claim 1 is characterized in that described reed (35) is asymmetric T font.

3, pin tumbler lock as claimed in claim 1 is characterized in that protecting cover (28) is asymmetric

Shape.

4, pin tumbler lock as claimed in claim 1 is characterized in that having on the described screw rod to pin bolt (13) rammed 2 flats to protrude halfround bar slice (1), and the smooth no well of cap head (15) is embedded in the doorframe (8) and covers with label (16).

5, pin tumbler lock as claimed in claim 1 is characterized in that safety button (34) is located at main lock housing (25) side, and up/down perforation becomes press type, and red, green button head is housed.