CN101988355A

CN101988355A - Lever type drawer lock

Info

Publication number: CN101988355A
Application number: CN2009100633821A
Authority: CN
Inventors: 崔西武
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-31
Filing date: 2009-07-31
Publication date: 2011-03-23

Abstract

The invention relates to a lever type drawer locking mechanism which can lock and unlock a drawer without a key. The mechanism mainly comprises a support, a locking dog, link levers, a push plate, a pressure spring, a riveting shaft, a shaft sleeve, a gasket and a retainer ring which form a symmetric lever mechanism. The invention is characterized in that the upper end of the locking dog is an inclined plane (a wedge of 45 degrees from side view), the locking dog is always at high position under the action of the pressure spring, the locking dog is blocked by the edge of a drawer frame when being pushed into a drawer, horizontal resistance is applied on the inclined plane thereof, the resistance can be decomposed to be two component forces which are upward parallel with the inclined plane and downward vertical to the horizontal plane respectively, the component force downward vertical to the horizontal plane presses the locking dog and the locking dog contracts downward to low position, the drawer is smoothly pushed in place, and the locking dog is reset and enters into a locking hole on the drawer frame under the action of the pressure spring, so that the drawer is locked. When opening the drawer, the push plate is pressed upward, the push plate drives two link levers to rotate around respective pivot, and the other end of the link lever simultaneously drives the locking dog to move downward, so as to be separated from the lock hole, thus unlocking is realized and the drawer can drawn out. The invention can be applied to any furniture provided with drawer, locking and unlocking of drawer can be realized without a key, and a lock can not be found from the outside.

Description

The lever drawer-lock

Technical field

The present invention relates to a kind of lever drawer lock mechanism of exempting from can carry out with key locking and unlatching drawer, mechanism mainly is made of the leverage of a symmetry support, dead bolt, linkage lever, push pedal, stage clip, axle sleeve, riveting axle, packing ring and collar etc.

Background technology

At present, mostly known drawer-lock be to utilize key to lock and open drawer, and their common characteristic lock or open drawer exactly must use key, and this gives on the one hand and opens, locks drawer and increase time and operation link; Taking care of key on the other hand also is burden; If key loss, the trouble of bringing is just bigger.

Summary of the invention

In order to solve existing locking mechanism locking or to open the problem that drawer must use key, the objective of the invention is to provide a kind of device without key also lockable and unlatching drawer.

The technical solution adopted in the present invention is: support, dead bolt, linkage lever, push pedal, stage clip, axle sleeve, riveting axle, packing ring and collar etc. constitute the leverage of a symmetry.

Support is bent into by steel plate, and side is seen and is

Shape, just see and be Shape inserts dead bolt and is

Shape, linkage lever is made by steel plate, in the form of sheets, 3 hinge axis holes are arranged on it, it is circular hole that bar is about 3/4 place, two ends are slotted hole (slotted hole definition: two radius equated but circular hole that the circle of decentraction forms along the parallel connection of diameter), linkage lever uses in pairs, the right symmetry of one the first from left is placed, linkage lever one end and dead bolt lower end are hinged by long riveting axle and axle sleeve, middle respectively with support about circular hole on two legs by riveting axle hinged (this point is balance pivot), the other end and push pedal are hinged by the riveting axle, install afterwards the front and see and be

Shape.The big up and small down multidiameter of dead bolt inserts in the concentric holes of " Contraband " shape above and below of support (two leg mid-depth lines are seen from the side and overlapped about the center line of this concentric holes and support), and small end is with stage clip and collar.The dead bolt upper end is designed to inclined-plane (side is seen and is 45 ° of angles of wedge), under the stage clip effect, be in a high position all the time, when advancing drawer, the dead bolt inclined-plane is subjected to horizontal thrust, thrust is decomposed into parallel inclined-plane upwards and two component facing down of vertical-horizontal, and the vertical-horizontal component pressure dead bolt that faces down makes it be reduced to low level downwards, and the accessible propelling of drawer puts in place, dead bolt resets and enters lockhole on the drawer frame under the effect of stage clip, and drawer promptly is lockable.When opening drawer, upwards by push pedal, two linkage levers of push pedal drive rotate around fulcrum separately, make the lever other end drive dead bolt simultaneously and leave lockhole downwards, promptly unblank, and drawer can be extracted out.

The invention has the beneficial effects as follows:

1. so long as design has the furniture of drawer all can use this locking mechanism;

2. be lockable and unlatching drawer without key;

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Accompanying drawing is unitary construction figure of the present invention, among the figure: 1. support, 2. dead bolt, 3. linkage lever, 4. push pedal, 5. stage clip, 6. the riveting axle is 7. grown the riveting axle, 8. axle sleeve, 9. packing ring, 10. collar.

The specific embodiment

In the accompanying drawings:

1, the small end with dead bolt [2] inserts in the concentric holes on upper and lower two planes of support [1] " Contraband " shape, simultaneously stage clip [5] is inserted the small end of dead bolt [2], make stage clip [5] between the big end end face of support [1] " Contraband " shape lower plane medial surface and dead bolt [2], small end from dead bolt [2] inserts packing ring [9] and collar [10] again, makes packing ring [9] and collar [10] outside at support [1] " Contraband " shape lower plane.

2, the end of two linkage levers [3] near middle circular hole, one in front and one in back clamp the circular hole plane of dead bolt [2] small end, make their 3 holes (2 slotted holes, 1 circular hole) concentric, make the inclined-plane of dead bolt [2] beveled end and support [1] with the face of 4 screwed holes in the same side, rivet with long riveting axle [7] and axle sleeve [8], be fixed on the dead bolt [2] after long riveting axle [7] and axle sleeve [8] riveted joint, linkage lever [3] can be gone up rotation at long riveting axle [7] and axle sleeve [8].

3, use riveting axle [6] to pass the riveted joint of the circular hole on two legs about linkage lever [3] circular hole and support [1] more respectively, riveted joint back riveting axle [6] is fixed on the support [1], and linkage lever [3] can be gone up at riveting axle [6] and rotate.

4, use riveting axle [6] to pass the riveted joint of the circular hole on two legs about slotted hole and push pedal [4] on linkage lever [3] other end at last respectively, riveting axle [6] is fixed in the push pedal [4], and linkage lever [3] can be gone up at riveting axle [6] and slide.

5, finish above-mentioned 4 step immediate shipment cost locking mechanisms, support [1] screwed hole is fixed on the drawer panel just can uses locking mechanism.

Claims

1. exempt to carry out the lever drawer-lock that locks and open drawer for one kind with key, comprise support, dead bolt, linkage lever, push pedal, stage clip, the riveting axle, axle sleeve, packing ring, collars etc. constitute the leverage of a symmetry, it is characterized in that: the dead bolt upper end is inclined-plane (side is seen and is 45 ° of angles of wedge), under the stage clip effect, be in a high position all the time, when advancing drawer, dead bolt is met the drawer frame edge and is hindered, its inclined-plane is subjected to horizontal resistance, resistance can be decomposed into two component that parallel inclined-plane makes progress and vertical-horizontal faces down, the vertical-horizontal component that faces down presses dead bolt to make it be reduced to low level downwards, the accessible propelling of drawer puts in place, dead bolt resets and enters lockhole on the drawer frame under the effect of stage clip, and drawer promptly is lockable.When opening drawer, upwards by push pedal, two linkage levers of push pedal drive rotate around fulcrum separately, make the linkage lever other end drive dead bolt simultaneously and leave lockhole downwards, promptly unblank, and drawer can be extracted out.

2. lever drawer-lock according to claim 1 is characterized in that: the bracket side of leverage is seen and is

Shape, just see and be

Shape inserts dead bolt and is

Shape, the right symmetry of linkage lever one the first from left is placed, linkage lever in the form of sheets, which is provided with 3 holes, it is circular hole that bar is about 3/4 place, two ends are slotted hole (slotted hole definition: two radius equated but circular hole that the circle of decentraction forms along the parallel connection of diameter), on the linkage lever on an end of nearly circular hole and the dead bolt lower end circular hole hinged by growing riveting axle and axle sleeve, the linkage lever circular hole respectively with support about circular hole on two legs hinged by the riveting axle, this pin joint is a balance pivot, slotted hole on the other end respectively with two legs of push pedal on circular hole hinged by the riveting axle, install the front, back and see and be Shape.

3. lever drawer-lock according to claim 1 is characterized in that: linkage lever which is provided with 3 holes in the form of sheets, and it is circular hole that bar is about 3/4 place, and two ends are slotted hole.

4. lever drawer-lock according to claim 1, it is characterized in that: the big up and small down multidiameter of dead bolt, in the concentric holes of " Contraband " shape above and below of insertion support, two leg mid-depth lines are seen from the side and are overlapped about the center line of this concentric holes and support, the dead bolt small end is with stage clip, packing ring and collar, stage clip is between the big end end face of " Contraband " shape lower plane medial surface of support and dead bolt, and packing ring and collar are in the outside of support lower plane.

5. lever drawer-lock according to claim 1 is characterized in that: 4 screwed holes on the support front of leverage are used for the lever drawer-lock is fixed on drawer panel.

6. lever drawer-lock according to claim 1 is characterized in that: dead bolt is subjected to the collar restriction can not be to top offset, and is maximum downwards when two linkage levers become a line.