CN2383921Y - Multi-bolt door lock - Google Patents

Abstract

The utility model relates to a multi-bolt door lock, which comprises bolts positioned at an upper frame and the a lower frame of a door, and a transverse rod gliding in a transverse direction, wherein, the transverse rod is used for driving an upper bolt and a lower bolt to telescope synchronously. A telescopic direction of the bolt on the upper frame is a vertical direction, the upper and the lower bolts are respectively connected with levers arranged at both sides of an upper and a lower transverse rods by a connecting rod, and the other end of each of the levers is hinged with the transverse rod. A hinge point of an upper and a lower levers and the connecting rod is at the same side positioning at a lever fulcrum. The utility model enables the gravity load of the upper and the lower bolts and the connecting rod on the transverse rods to cancel with each other through the effect of a lever; hence, the resistance born by a toggling lever is small, and the utility model has the advantages that an auxiliary spring is unnecessary, and structure is simple.

Description

The lock of bolting the door more

The utility model relates to a kind of vertically flexible lock of bolting the door of bolt of bolt the door locks, particularly a kind of upper side frame more more.

In the existing locks of bolting the door more, a kind of design feature is arranged in the upper and lower frame of door, being provided with telescopic bolt, upper and lower bolt is driven simultaneously by a cross bar that laterally slides, and makes the bolt of upper side frame vertically flexible.Bolt the door this to be locked in is connected with one upward to upper side frame more between the upper and lower bolt, down to the perpendicular long connecting rod of lower frame, this perpendicular long connecting rod produces gravity load by link gear to cross bar together with the bolt of upper side frame.It is heavier to be directed at weight owing to connecting rod is long, and the resistance of therefore stirring cross bar is bigger.For reducing resistance, the existing this locks of bolting the door have additional secondary spring offsetting a part of gravity of perpendicular long connecting rod more, but so just are directed at structure complicated, have increased fault rate.

The purpose of this utility model provides a kind of less lock of bolting the door of resistance of stirring cross bar more.

The utility model is achieved in that the utility model lock of bolting the door comprises the bolt that is contained in the Sandwiched door band, is positioned at the upper and lower frame of door more, and the cross bar that is used to drive the horizontal slip of described bolt synchronization telescope, the flexible direction of the bolt of described upper side frame is a vertical direction.In Sandwiched door band, be respectively arranged with an end and cross bar hinged upside lever and downside lever in the upper and lower both sides of described cross bar.The other end of upside lever is connected with the bolt of upper side frame by a connecting rod, and the other end of downside lever is connected with the bolt of lower frame by a connecting rod.The pin joint of upper and lower both sides lever and connecting rod is located on the left side of balance pivot or is located on the right side of balance pivot.Said structure makes the make a concerted effort direction of torque that the upside lever is produced of the gravity of bolt, connecting rod of upper side frame, opposite with the make a concerted effort direction of torque that the downside lever is produced of the gravity of the bolt of lower frame, connecting rod, thereby the lever of upper and lower both sides is cancelled out each other to the active force of cross bar, that is make the bolt that cross bar is subjected to, the gravity load of connecting rod greatly reduce, thereby reduce to stir the suffered resistance of cross bar.

The utility model has the advantages that: the bolt that cross bar bore, the gravity load of connecting rod cancel each other out, and therefore need not to set up secondary spring, make the simple in structure of lock of bolting the door more, have reduced fault rate.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model structural representation of seeing of panel of opening door.

Referring to Fig. 1, present embodiment have two cross bars 1,1 ', be separately positioned on the and arranged on left and right sides of door, and cross bar 1,1 ' an end extend to the edge of door, double as bolt.Upper and lower bolt with cross bar interlock so both can all be set in the and arranged on left and right sides of door, but can make the left and right both sides of door have the bolt of transversal stretching again, thereby strengthen the theftproof performance of bolting the door more and locking.On the left side, the upper and lower both sides of cross bar 1 are provided with around fulcrum 2.The upside lever 3 and the downside lever 4 that rotate, an end and the cross bar of upside lever 3 are hinged, and the other end is connected with the bolt 6 of upper side frame by connecting rod 5; One end and the cross bar 1 of downside lever 4 are hinged, and the other end is connected with the bolt 8 of lower frame by connecting rod 7.The pin joint 9,10 of upper and lower both sides lever 3,4 and connecting rod 5,7 is located on the left side of balance pivot 2.On the right, cross bar 1 ' and upper and lower side lever 3 ', 4 ', and the connecting rod 5 of upside ', bolt 6 ' and the connecting rod 7 of downside ', bolt 8 ' between syndeton symmetrical substantially with the left side, be not repeated at this.As seen from the figure the lever 3 of upper and lower both sides, the right ', 4 ' with connecting rod 5 ', 7 ' pin joint 9 ' 10 ' be located on balance pivot 2 ' the right side.Each lever of the cross bar 1,1 of horizontal slip left and right sides during use ' can drive rotates, thus make upper and lower bolt 6,8 and 6 ', 8 ' carry out stretching motion, and cross bar 1,1 ' itself also play the effect of bolt.On the left side, because the gravity of bolt 6, connecting rod 5 is made a concerted effort to the direction of the torque of upside lever 3 generations, opposite with the make a concerted effort direction of torque that downside lever 4 is produced of the gravity of bolt 8, connecting rod 7, so the active force of the suffered upper and lower both sides lever 3,4 of cross bar 1 cancels each other out.In like manner, the upper and lower both sides lever 3 of the cross bar 1 on the right ' suffered ', 4 ' active force also cancel each other out, thereby make stir cross bar 1,1 ' each bolt that is born, the gravity load of connecting rod greatly reduces.

For making overall structure of the present utility model simpler, can be as shown in Figure 1 with the dead bolt 12,12 of the cross bar 1,1 of the left and right sides ' directly and the both sides of a reversible lock 11 ' be connected.Described reversible lock 11 be meant can drive the lock body both sides with the key turns lock gall dead bolt in opposite directions or opposing slip and a kind of lock.Because reversible lock has been the rotational transform of key the horizontal slip of both sides dead bolt, therefore cross bar is directly linked to each other with the dead bolt of reversible lock, saved the trouble that switching mechanism is set in Sandwiched door band, make the overall structure of the lock of bolting the door simpler more.

Claims (3)

1, a kind of lock of bolting the door more, comprise and being contained in the Sandwiched door band, be positioned at the door on, the bolt of lower frame, and the cross bar that is used to drive the horizontal slip of described bolt synchronization telescope, the flexible direction of the bolt of described upper side frame is a vertical direction, it is characterized in that: in Sandwiched door band, on described cross bar, following both sides are respectively arranged with an end and hinged upside lever and the downside lever of cross bar, the other end of upside lever is connected with the bolt of upper side frame by a connecting rod, the other end of downside lever is connected with the bolt of lower frame by a connecting rod, on, the pin joint of following two levers and connecting rod is located on the left side of balance pivot or is located on the right side of balance pivot.

2, the lock of bolting the door as claimed in claim 1 is characterized in that described cross bar has two more, be separately positioned on the and arranged on left and right sides of door, and an end of cross bar extends to the edge of door, double as bolt.

3, the lock of bolting the door as claimed in claim 2 is characterized in that the dead bolt of the direct both sides with a reversible lock of the cross bar of the described left and right sides is connected more.