CN200996230Y - Automatic unlocking structure of linked lock - Google Patents

Abstract

The utility model discloses an automatic unlatching structure of an interlocking lock. The interlocking lock is composed of an automatic unlatching structure, an auxiliary lock and a large handle lock. The automatic unlatching structure has an upper cam, a pivot, a driving plate, The knob and the auxiliary lock body form a linkage; the lower cam, the drive tube, the inner handle and the large handle lock body of the automatic unlocking structure form a linkage; the slide plate is loosely installed in the inner cover; when the inner handle rotates, it can drive the lower The cam rotates to push the slide plate, and then pushes the upper cam to rotate, and can simultaneously drive the auxiliary lock latch and the large handle lock latch to retract. One end has a slot, and the drive plate selectively passes through the first slot of the upper cam to connect to the slot of the pivot shaft or selectively passes through the second slot of the upper cam to connect to the slot of the pivot shaft.

Description

Interlock lock automatic unlocking structure

technical field

The utility model relates to an automatic unlocking structure of an interlocking lock, in particular to an improvement of an automatic unbolting structure installed on the inside lock body of an interlocking lock.

Background technique

The design of general interlocking locks is designed between the general lock body (big handle lock) and the rotating shaft of the auxiliary lock. An automatic unlatching structure composed of a lower cam, a slide plate, an upper cam and a support plate is designed, and when the general lock body is rotated When the handle is used, the lower cam of the automatic unlocking structure can be rotated to push the slide plate upwards, and the slide plate can push the upper cam to rotate, and then drive the auxiliary lock to open. Therefore, only the inner handle needs to be rotated. That is to say, the two lock bodies can be opened at the same time, and it can provide a structure that is easy to operate and can shorten the opening time, and it can have better anti-theft effect through the cooperation of more than two locks; the conventional structure is such as the new patent No. No. 88204254, although its structural features improve the structural features between the bottom plate and the slide plate, but in the process of the lower rotating piece pushing the sliding plate and then driving the upper rotating piece, it is difficult to achieve that the upper turning piece can rotate more than 90 degrees. Because there are gaps at the joints between the components, the rotation angle of the upper rotating piece is less than 90 degrees, so that the auxiliary lock cannot be retracted into the panel. And the structure disclosed in U.S. Patent No. US 4129019 still has the disadvantage of difficulty in adjusting the direction of the left-open door or right-open door, because the interlocking lock is adjusted to the left-open door (the person stands on the outside of the door, and the hinge is installed on the left side of the person) and When opening the door from the right (the person stands on the outside of the door, and the hinge is installed on the right side of the person), the upper turning piece and the slide plate must be turned over 180 degrees to achieve the reversing of the left or right door, which causes a lot of inconvenience.

In view of this, in order to solve the above problems, this utility model is produced. The utility model is an automatic unlocking structure of an interlocking lock, which improves the position and installation method of the upper cam to achieve the convenience of reversing the left and right doors. And it can solve the shortcoming that the rotation angle of the upper cam is less than 90 degrees.

Utility model content

The main purpose of this utility model is to provide an automatic unlocking structure of the interlocking lock, which is to improve the position and installation method of the upper cam of the automatic unlocking structure of the interlocking lock to achieve the convenience of changing the direction of the left-opening door and the right-opening door and to solve the above problems. The disadvantage that the rotation angle of the cam is less than 90 degrees enables the auxiliary lock bolt to be retracted into the panel reliably.

In order to achieve the above object, the solution of the utility model is: 1. An automatic unlatching structure of an interlocking lock, which is composed of an automatic unlatching structure, an auxiliary lock and a large handle lock. The structure has an upper cam, a pivot, a driving plate, a knob and an auxiliary lock body to form a linkage, the pivot can pass through the first hole of an inner cover plate, and one end is fixed to the knob; the other end Connecting the upper cam, the lower cam, a driving tube, an inner handle and a large handle lock body of the automatic unlocking structure form a linkage; a slide plate can be loosely installed in the inner cover plate; the inner handle can be worn The second hole of the inner cover plate is fixed with the lower cam; wherein: one end of the shaft of the upper cam has a first groove and a second groove, one end of the pivot has a groove, and the driving plate can be selected Either pass through the first slot of the upper cam to connect to the slot of the pivot shaft or optionally pass through the second slot of the upper cam to connect to the slot of the pivot shaft.

Further, at least one fixing plate can be fixed on the inner cover plate to form a slideway.

Further, the other end of the shaft portion of the upper cam has a hole, the hole has an annular groove, and has an arc-shaped groove on the periphery of the hole; one end of the pivot is fixed to the knob, and the other end has a flange, There is a protrusion and an annular groove on the flange, an elastic ring can be accommodated between the annular groove of the upper cam and the annular groove of the pivot shaft, and the arc groove of the upper cam and the annular groove of the pivot The protrusions of the pivot are adjacent to each other, so that the upper cam can swing between the first angular position and the second angular position relative to the pivot.

It further has at least one washer and at least one screw, and the screw fixes the washer to the inner cover plate.

The washer and the screw can be integrally formed.

After adopting the above scheme, the utility model can drive the lower cam to rotate when the inner handle rotates, so that the lower cam can push the sliding plate to move upward, thereby the sliding plate can push the upper cam to rotate, and simultaneously drive an auxiliary lock The latch and a large handle lock are retracted to open the door. One end of the shaft of the upper cam has a first slot and a second slot, and one end of the pivot has a slot. The drive plate can optionally pass through the upper The first groove of the cam is connected with the groove of the pivot or the second groove of the upper cam is selected to be connected with the groove of the pivot, so as to achieve the convenience of reversing the left-handed door and the right-handed door. It can solve the disadvantage that the rotation angle of the upper cam is less than 90 degrees, so that the auxiliary lock bolt can be reliably withdrawn into the panel.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the whole interlocking lock of the present utility model;

Fig. 2 is the three-dimensional exploded view of the driving plate, the upper cam, the elastic ring and the pivot of the utility model;

Fig. 3 is a three-dimensional exploded view of another angle of view of the upper cam, the elastic ring and the pivot of the utility model;

Fig. 4 is the plan combination diagram that the upper cam of the utility model is adjusted to open the door to the right;

Fig. 5 is the plan combination diagram of the upper cam of the utility model adjusted to the left door;

Fig. 6 is a schematic diagram of the locking situation of the utility model in the state of opening the door to the right;

Fig. 7 is a schematic diagram of the unlocking situation in the right-opening state of the utility model;

Fig. 8 is a schematic diagram of the locking situation of the utility model in the state of opening the door to the left;

Fig. 9 is a schematic diagram of the unlocking situation of the utility model in the state of opening the door to the left;

Fig. 10 is another application embodiment of the present invention, a three-dimensional exploded view of the integral interlocking lock.

Explanation of main component symbols

11 Auxiliary lock 12 Large handle lock 13 Auxiliary lock body 14 Large handle lock body

15 Drive plate 16 Drive pipe 2 Inner cover 21 First hole

22 Second hole 23 Screw hole 24 Protrusion 5 Knob

51 Hole 52 Shaft 6 Inner handle 61 Ear

62 Shaft 63 Annular Groove 7 Automatic Unlatch Structure 71 Lower Cam

711 Groove 712 Push part 713 Buckle 714 Hole

72 Skateboard 721 Push down part 722 Push up part 723 Down recess

724 Upper concave part 725 Accommodating groove 73 Upper cam 731 Pushing part

732 First slot 733 Second slot 734 Arc slot 735 Hole

736 Annular groove 74 Pivot 741 Annular tooth surface 742 Groove

743 convex part (746 spring pin and 747 hole form)

744 flange 745 annular groove 75 fixing plate 76 screw

77 Spring 78 Washer

Detailed ways

As shown in Figures 1 to 3, the utility model is an automatic unlocking structure of an interlocking lock. Replaced with a general lock or handicap lock), the auxiliary lock 11 includes an auxiliary lock body 13 and an auxiliary lock bolt (not shown) arranged on the door, and a knob 5 arranged on the inner cover plate 2. , wherein the auxiliary lock body 13 is linked with the auxiliary lock bolt and the knob 5 . And when the knob 5 is rotated, it can drive the auxiliary lock bolt to retract inwardly at the same time, and the large handle lock 12 is composed of the large handle lock body 14 and the set latch (not shown) on the door and the inner The handle 6 is composed of each component in a linked state of clamping together.

The inner handle 6 has a shaft portion 62, the end of the shaft portion 62 has an annular groove 63 and an ear 61, and the ear 61 can pass through the second hole 22 of the inner cover plate 2 and the groove 711 of the lower cam 71 to The buckle 713 is fastened on the annular groove 63, so that the inner handle 6 and the lower cam 71 are connected to each other and rotate simultaneously; wherein the lower cam 71 has a hole 714 in the center to be connected with the drive pipe 16 of the large handle lock 12.

The two fixing plates 75 can be locked in the inner cover plate 2 by using the screws 76 and the screw holes 23 of the inner cover plate 2 to form a slideway.

A slide plate 72 is installed in the slideway and can slide up and down. The slide plate 72 has an accommodating groove 725 for accommodating a spring 77. One end of the spring 77 is supported on the bottom of the accommodating groove 725, and the other end is supported on the inside cover plate 2. The protruding part 24 is to form an elastic bias, and there is an upper concave part 724 above the sliding plate 72, which can accommodate the upper cam 73 when the sliding plate 72 moves upward; , so that the lower pushing portion 721 of the slide plate 72 is in contact with the pushing portion 712 on the lower side of the lower cam 71 .

The knob 5 has a shaft portion 52 with a hole 51 at the end of the shaft portion 52; a pivot 74 with an annular tooth surface 741 at one end can pass through the first hole 21 of the inner cover plate 2 to correspond to the hole 51 of the knob 5 Consolidation, the other end has a flange 744, which has an annular groove 745 and a protrusion 743 (wherein the formation of the protrusion 743 can be formed by a spring pin 746 as shown in Figure 3 part is inserted in the hole 747 on the flange 744 of the pivot 74), and has a groove 742 in the axial direction;

As shown in Figure 3, the upper cam 73 has a pushing portion 731 that can be pushed by the upper pushing portion 722 of the slide plate 72, and has a first groove 732 and a second groove 733 at one end of the axial position, and a second groove 733 at the other end. The hole 735 has an annular groove 736 in the hole 735, and has an arc-shaped groove 734 on the periphery of the hole 735. When the upper cam 73 is installed on the pivot 74, the elastic ring 743 can be compressed so that the elastic ring 743 is positioned on the upper cam. Between the annular groove 736 of 73 and the annular groove 745 of pivot 74, the upper cam 73 will not be easy to loosen like this.

Referring to Fig. 2 to Fig. 5, the interlocking lock automatic unlocking structure of the present invention is applied to the left-opening door and the right-opening door respectively, which is also a feature of the present utility model design, that is, the upper cam 73 has an arc-shaped groove 734 can be adjacent to the protrusion 743 of the pivot 74, so that the upper cam 73 can be positioned on the pivot 74 to swing between the first angular position and the second angular position; and the shaft of the upper cam 73 has a first groove 732 and the second groove 733; the pivot 74 has a groove 742, and the driving plate 15 of the auxiliary lock body 13 can optionally pass through the first groove 732 of the shaft portion of the upper cam 73 and be connected with the groove 742 of the pivot 74 so that Open the door on the right, as shown in Figure 4; the second slot 733 of the upper cam 73 axles that the driving plate also can select passes and be connected with the groove 742 of the pivot 74 so as to open the door on the left, as shown in Figure 5.

When it is in the right-opening state, the action of the automatic unlocking structure of the interlocking lock is shown in Figure 6 and Figure 7, wherein Figure 6 is the locked state of the auxiliary lock bolt, if you want to unlock, turn the inner handle 6 to drive the lower cam 71, At this time, the push part 712 on the lower side of the lower cam 71 pushes the lower push part 721 of the slide plate 72 to make the slide plate 72 slide upwards, and then the push part 722 of the slide plate 72 pushes the push part 731 of the upper cam 73 to push up. The cam 73 reaches the unlocked position, as shown in Figure 7, so as to simultaneously drive the auxiliary lock latch and the latch to retract, and the door is opened. At this time, the inner handle 6 is released, and the slide plate 72 is biased by the bias force of the spring 77. 72 and the lower cam 71 return to their original positions; wherein as shown in Figure 6, the upper cam 73 is located in the third angular position of the locked state to the fourth angular position of the upper cam 73 in the unlocked state as shown in Figure 7, and the upper cam 73 is unlocked during the unlocking process. , the rotation angle is greater than 90 degrees, so that the auxiliary lock bolt can be retracted into the panel.

Referring again to Fig. 8 and Fig. 9, it is a schematic diagram of the opening and closing of the interlocking lock automatic unlocking structure when the door is left open.

Another specific embodiment of the application of the utility model, wherein the fixed plate 75 of the above-mentioned embodiment (as shown in Figure 1) can be replaced by a washer 78 (as shown in Figure 10), and the screw 76 and the screw hole 23 of the inner cover plate 2 can be used to connect The washer 78 is locked on the inner cover plate 2 to maintain the sliding plate 72 to move in a predetermined direction.

Furthermore, the screw 76 and the washer 78 can also be integrally formed into a screw of a special specification (not shown in the figure).

Claims (5)

1, a kind of interlock lock automatic unlocking structure, this interlock lock is made up of automatic unlocking structure, an auxiliary lock and a lot hand lock, the overhead cam that this automatic unlocking structure is had, a pivot, a drive plate, a knob and an auxiliary lock body form interlock, this pivot can pass first hole of an inside cover plate, fixed this knob of an end; The other end connects this overhead cam, and the cam once that this automatic unlocking structure is had, a driving tube, an Internal handle and a lot hand lock body form interlock; But a slide plate removable mounting is in this inside cover plate; This Internal handle can pass second hole and this time cam concrete mutually of this inside cover plate; It is characterized in that: axial region one end of this overhead cam has one first groove and one second groove, this pivot one end has a groove, and this drive plate is selectable to be passed first groove of this overhead cam and be connected with the groove of this pivot or second groove that passes this overhead cam selected and being connected with the groove of this pivot.

2, interlock lock automatic unlocking structure as claimed in claim 1 is characterized in that: further have at least one fixed head and can be consolidated in formation one slideway on this inside cover plate.

3, interlock lock automatic unlocking structure as claimed in claim 1, it is characterized in that: further the axial region other end of this overhead cam has a hole, has an annular recess in this hole, and the periphery in this hole has an arcuation groove; This pivot one end is consolidated in knob, the other end has a flange, have a protuberance and an annular recess on this flange, one elastic ring can be placed between the annular recess of the annular recess of this overhead cam and this pivot, and the arcuation groove of this overhead cam abuts mutually with the protuberance of this pivot, so can make this overhead cam do swing between the position, angle, first jiao of position to the second with respect to this pivot.

4, interlock lock automatic unlocking structure as claimed in claim 1, it is characterized in that: further have at least one packing ring and at least one screw, this screw is fixed in this packing ring on this inside cover plate.

5, interlock lock automatic unlocking structure as claimed in claim 4, it is characterized in that: this packing ring and this screw can be formed in one.

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