CN2793244Y - Lock with single bolt - Google Patents

Abstract

The utility model relates to a lock with a single bolt, which comprises a lock case, a bolt, a positioning plate, a positioning pin fixed to the lock case, a spring mounted on the positioning plate, a toothed plate fixed to the bolt, a draw rod of the bolt, a handle of the draw rod of the bolt, a spring mounted on the draw rod of the bolt, a lock core fixed to the lock case and a poking lever fixed to the lock core, wherein the spring mounted on the draw rod of the bolt can lead the bolt to be automatically locked. The utility model is characterized in that the positioning plate is provided with two positioning surfaces, i.e., a positioning surface which can lead the bolt to motion within a certain range and to be automatically locked and a positioning surface which can lead the bolt to be safely locked, wherein the positioning surface which can lead the bolt to motion within a certain range and to be automatically locked is in an opening elongated slot shape with both ends with circular arcs. After a toothed rack latch is automatically lock, the utility model can be safely locked directly using a key, therefore the utility model has the advantages of simple structure and convenient operation.

Description

Monolock tongue safety lock

Technical field

The utility model relates to a kind of safety lock, especially can automatically lock the monolock tongue safety lock with safety lock.

Background technology

At present, for home safety, usually adopt the tooth bar bolt on the Double-wing door, mix the safety device of double lock tongue safety lock, when locking a door, rotate handwheel, drive the gear rotation coaxial with handwheel, promote the motion of tooth bar bolt, when the tooth bar bolt moves to certain position, jump out dead bolt hole automatically by the dead bolt of spring roof pressure, block the loop of tooth bar bolt, formation automatically locks, when the tooth bar bolt moves forward, arrive certain position, the motion of promptly available key control insurance dead bolt, block the loop of tooth bar bolt, form safety lock.The advantage of this structure is: the tooth bar bolt can varying in size according to door, make different specifications, intensity is big, and security performance is good, is particularly suitable for the use of Double-wing door, shortcoming is: after the tooth bar bolt is automatically locked, need also again that the mobile rack bolt travels forward, arrive certain position, could use the key safety lock, complex structure uses inconvenience.

Summary of the invention

In order to overcome the supporting double lock tongue safety lock of existing and tooth bar bolt after the tooth bar bolt is automatically locked, also needing again, the mobile rack bolt travels forward, arrive certain position, could use the key safety lock, complex structure, awkward deficiency, the utility model provides a kind of monolock tongue safety lock, this monolock tongue safety lock can directly be used the key safety lock after the tooth bar bolt is automatically locked.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of monolock tongue safety lock, comprise lock box, dead bolt, location-plate, be fixed on the alignment pin on the lock box, be contained in the spring on the location-plate, be fixed on the tooth plate on the dead bolt, dead bolt pull bar, dead bolt pull bar handle, be contained in the spring that on the dead bolt pull bar dead bolt is automatically locked, be fixed on the lock core on the lock box, be fixed on the driving lever on the lock core, it is characterized in that: two locating surfaces are arranged on the location-plate, the locating surface that can make dead bolt move within the specific limits and automatically lock also has the locating surface that can make the dead bolt safety lock.The locating surface that dead bolt is moved within the specific limits and automatically lock is the opening long trough of two ends band circular arc.Under door opening state, dead bolt is pressed in the dead bolt hole by the tooth bar bolt, when locking a door, the tooth bar bolt moves the pressure of disengaging to dead bolt, and dead bolt ejects dead bolt hole automatically under the effect of spring force, block the loop of tooth bar bolt, the tooth bar bolt is automatically locked, if need safety lock, can directly realize safety lock with key rotation lock core.

The utility model has overcome the supporting double lock tongue safety lock of existing and tooth bar bolt when the tooth bar bolt is automatically locked after, also needs mobile rack bolt again, and the arrival certain position could be used the key safety lock, complex structure, awkward deficiency.The utility model can directly be used the key safety lock after the tooth bar bolt is automatically locked, simple in structure, easy to use.

Description of drawings

Fig. 1 is the utility model constructional drawing

Fig. 2 is the utility model location-plate constructional drawing

The specific embodiment

As Fig. 1, shown in Figure 2, a kind of monolock tongue safety lock, comprise lock box (9), dead bolt (8), location-plate (5), be fixed on the alignment pin (7) on the lock box (9), be contained in the spring (6) on the location-plate (5), be fixed on the tooth plate (4) on the dead bolt (8), dead bolt pull bar (2), dead bolt pull bar handle (1), dead bolt pull bar (2) one ends are connected with dead bolt (8), spring (3) is housed on the dead bolt pull bar (2), and lock core (10) is fixed on the lock box (9), and driving lever (11) is fixed on the lock core (10), it is characterized in that: two locating surfaces are arranged on the location-plate (5), the locating surface (52) that dead bolt (8) is moved within the specific limits and automatically lock also has the locating surface (51) that can make dead bolt (8) safety lock, dead bolt (8) is moved within the specific limits and the locating surface (52) that automatically locks is the opening long trough of two ends band circular arc.Shown in Figure 1 is under door opening state, and dead bolt (8) is pressed in the dead bolt hole by the tooth bar bolt.When locking a door, the tooth bar bolt moves the pressure of disengaging to dead bolt (8), and dead bolt (8) ejects dead bolt hole automatically under the elastic force effect of spring (3), block the loop of tooth bar bolt, and the tooth bar bolt is automatically locked.As the needs safety lock, can directly use key rotation lock core (10), the driving lever (11) that drive is fixed on the lock core (10) rotates, driving lever (11) promotes location-plate (5) by the bottom surface (53) on the location-plate (5) and breaks away from alignment pin (7), move with dead bolt (8) simultaneously, make the locating surface (51) of the safety lock on the location-plate (5) block alignment pin (7).Realize safety lock.

Claims (2)

1, a kind of monolock tongue safety lock, comprise lock box, dead bolt, location-plate, be fixed on the alignment pin on the lock box, be contained in the spring on the location-plate, be fixed on the tooth plate on the dead bolt, dead bolt pull bar, dead bolt pull bar handle, be contained in the spring that on the dead bolt pull bar dead bolt is automatically locked, be fixed on the lock core on the lock box, be fixed on the driving lever on the lock core, it is characterized in that: two locating surfaces are arranged on the location-plate, the locating surface that can make dead bolt move within the specific limits and automatically lock also has the locating surface that can make the dead bolt safety lock.

2, monolock tongue safety lock according to claim 1 is characterized in that: dead bolt is moved within the specific limits and the locating surface that automatically locks is the opening long trough of two ends band circular arc.

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