CN111691750A - Latch mechanism - Google Patents

Abstract

The present invention provides a diagonal tongue mechanism. The utility model solves the problem that the lock needs a large force when opening the door and is inconvenient to use. In the present invention, when opening the door, the fork is driven to drive the pallet to move inside the lock box, and the pallet drives the vertical plate to rotate around the connection between the vertical plate and the horizontal plate to the direction away from the side panel through the toggle hook and the toggle rod, so that the horizontal plate is rotated. The end away from the vertical plate is rotated downwards so that the slot on the horizontal plate is separated from the blocking post to complete the unlocking of the guide post. Rotation makes the end of the oblique tongue on the outside of the lock box gradually rotate into the lock box, which is quick and labor-saving when opening the door, and the friction between the oblique tongue and the door frame is greatly reduced by the rotation of the oblique tongue. The tongue rotation is arranged on the guide rod. When installing doors with different opening and closing directions, the oblique tongue can be directly rotated to change the direction of the oblique tongue to adapt to the doors of different opening and closing directions, and the installation is more convenient.

Description

a tongue mechanism

technical field

The device of the invention belongs to the technical field of locks, and in particular relates to a slant tongue mechanism.

Background technique

With the development of locks, more and more electronic door locks or ordinary door locks are widely used in hotels, guesthouses, homes and other occasions. In the existing door lock, the oblique tongue is usually fixed on the sliding rod, and the movement of the sliding rod along the length direction of the sliding rod is driven by the driving structure inside the lock to control the entry and exit of the oblique tongue. To fit the door frame, it is necessary to overcome the sliding friction between the door frame and the oblique tongue to drive the oblique tongue to move inside the lock box, and the plane on the oblique tongue is scratched with the door frame. Long-term use of the oblique tongue will cause greater wear and tear, and When opening the door, a large force is required, which is inconvenient to use.

SUMMARY OF THE INVENTION

The device of the invention provides a slanting tongue mechanism for the purpose that the lock requires a large force when opening the door, and is relatively inconvenient and insufficient to use.

The invention object of the present invention is achieved through the following technical solutions: a slanting tongue mechanism, which is installed in the lock box and is perpendicular to the side panel on the lock box, characterized in that it includes a side panel that is fixedly arranged in the lock box and parallel to the side panel. The guide piece and the guide rod that is movably arranged on the guide piece and can reciprocate in the direction perpendicular to the guide piece, the guide rod is rotated toward one end of the side panel and is provided with a slant tongue, and one end of the slant tongue is located outside the lock box, The upper end of the guide rod facing the oblique tongue is the upper end, and two sides of the oblique tongue located in the inner end of the lock box are respectively fixed with a boss abutting on the inner wall of the side panel, the oblique tongue can wrap around the oblique tongue two sides. The side boss and the side panel are turned over to push the guide rod to move inside the lock box, and the end of the oblique tongue located on the outside of the lock box is gradually rotated into the lock box. The guide rod is sleeved with a drive guide rod to the side A spring that moves in the direction of the panel, and the lock box is provided with a locking mechanism for locking the guide rod.

Preferably, a rotating rod is fixed on the upper end of the guide rod, the length direction of the rotating rod is parallel to the guide piece, the lower end of the oblique tongue is provided with a rotating groove extending to the inside of the oblique tongue, and the rotating rod is clamped to In the rotating groove, the oblique tongue can be rotated around the rotating rod, a block is fixed on both sides of the upper end of the guide rod, and a lower end of the oblique tongue is provided with a pass through the oblique tongue and the rotating groove and is connected with the block. With the matching guide groove, the oblique tongue can rotate around the rotating rod so that the two ends of the guide groove are respectively clamped on the block.

Preferably, the upper ends of the two ends of the guide groove are respectively fixed with a limiting shoulder, and the oblique tongue can rotate around the rotating rod so that the two limiting shoulders are respectively clamped on the block, and the two limiting shoulders are located at The plane is gradually inclined to the inclined plane from the plane on the inclined tongue to the inclined plane.

Preferably, the locking mechanism includes a locking piece rotatably arranged in the lock box, a carriage movably arranged in the lock box and capable of reciprocating movement in a direction perpendicular to the side panel, and a fork that drives the carriage to move. A blocking post is fixedly arranged at the lower end of the guide rod. The locking piece includes a vertical plate and a horizontal plate fixed at the lower end of the vertical plate and extending away from the side panel. The locking piece can rotate around the connection between the horizontal plate and the vertical plate. , the horizontal plate is located below the above-mentioned blocking column, the horizontal plate is provided with a slot for clamping the above-mentioned blocking column, and the upper end of the vertical rod is fixedly provided with a toggle rod of a vertical vertical rod, so The lower end of the drag plate is fixedly provided with a toggle hook for being clamped on the toggle rod and driving the toggle rod to move away from the side panel, and an end that drives the transverse plate away from the side panel is fixed in the lock box. It is a torsion spring that rotates upwards around the connection between the horizontal plate and the vertical plate and makes the card slot snap on the blocking post.

Preferably, the shifting fork is set in the lock box by rotating a rotating shaft, a sliding groove is formed on the sliding plate, and the rotating shaft is inserted into the sliding groove, and a sliding groove is formed on the sliding plate. The lower end of the fork is fixedly provided with a projection block which is clamped in the above-mentioned backstop groove.

Preferably, one end of the horizontal plate away from the vertical plate is fixedly provided with a hook plate of a vertical horizontal plate, and one end of the torsion spring is fixedly arranged on the hook plate.

Preferably, a rotating ring is sleeved on the blocking post, and the clamping groove on the horizontal plate is clamped on the rotating ring.

Compared with the prior art, the present invention drives the fork to move the pallet to the inside of the lock box when opening the door, and the pallet drives the vertical plate around the connection between the vertical plate and the horizontal plate to move away from the side panel through the toggle hook and the toggle rod. Rotate in the direction of the horizontal plate, so that the end of the horizontal plate away from the vertical plate is rotated downward, so that the slot on the horizontal plate is separated from the blocking post to complete the unlocking of the guide post, the door frame is clipped on the plane of the oblique tongue, and the rotating door drives the oblique tongue to rotate around The lever rotates in the direction of the upper slope of the oblique tongue, so that the end of the oblique tongue located on the outside of the lock box gradually rotates into the lock box, which is quick and labor-saving when opening the door, and the friction between the oblique tongue and the door frame is greatly reduced by the rotation of the oblique tongue. It has a simple structure and strong practicability, and by rotating the oblique tongue on the guide rod, when installing doors with different opening and closing directions, the oblique tongue can be directly rotated to change the direction of the oblique tongue to adapt to doors with different opening and closing directions. , the installation is more convenient.

Description of drawings

Fig. 1 is the overall structure view after installation of the present invention;

Fig. 2 is the structure exploded diagram of the present invention;

Fig. 3 is the cutaway view of oblique tongue;

Fig. 4 is the overall structure view of the pallet;

Figure 5 is an overall structural view of the fork;

Fig. 6 is the overall structure view of the locking piece;

Figure 7 is a view of the overall structure after locking.

Markings in the figure: 1. Lock box; 2. Side panel; 3. Guide piece; 4. Guide rod; 5. Oblique tongue; 6. Boss; 7. Rotating rod; 8. Rotating groove; , guide groove; 11, spring; 12, locking mechanism; 13, limit shoulder; 14, locking piece; 15, carriage; 16, fork; 17, stop column; 18, vertical plate; 19, horizontal plate; 20 , card slot; 21, toggle lever; 22, toggle hook; 23, torsion spring; 24, shaft; 25, sliding groove; 26, stop groove; 27, bump; 28, hook plate;

Detailed ways

The present invention is further described below in conjunction with the embodiments represented by the accompanying drawings: as shown in Figure 1, a slanted tongue mechanism, installed in the lock box 1 and perpendicular to the side panel 2 on the lock box 1, includes a The guide piece 3 in the box 1 and parallel to the side panel 2 and the guide rod 4 which is movably arranged on the guide piece 3 and can reciprocate in the direction perpendicular to the guide piece 3, the guide rod 4 is rotated towards one end of the side panel 2. There is an oblique tongue 5, one end of the oblique tongue 5 is located outside the lock box 1, and the lock box 1 is provided with a locking mechanism 12 for locking the guide rod 4.

As shown in FIG. 2 and FIG. 3 , the upper end of the guide rod 4 facing the oblique tongue 5 is the upper end, and two sides of the oblique tongue 5 located in the inner end of the lock box 1 are respectively fixed with a side panel 2 . The boss 6 on the inner wall, the upper end of the guide rod 4 is fixedly provided with a rotating rod 7, the length direction of the rotating rod 7 is parallel to the above-mentioned guide piece 3, and the lower end of the oblique tongue 5 is provided with a direction to the inside of the oblique tongue 5. The extended rotating groove 8, the above-mentioned rotating rod 7 is clamped in the rotating groove 8 and enables the oblique tongue 5 to rotate around the rotating rod 7, and two sides of the upper end of the guide rod 4 are respectively fixed with a stopper 9, so The lower end of the oblique tongue 5 is provided with a guide groove 10 which penetrates through the oblique tongue 5 and the rotation groove 8 and is matched with the stopper 9. On the stopper 9 , the guide rod 4 is sleeved with a spring 11 that drives the guide rod 4 to move in the direction of the side panel 2 . The upper ends of the two ends of the guide groove 10 are respectively fixed with a limit shoulder 13, and the oblique tongue 5 can rotate around the rotating rod 7 so that the two limit shoulders 13 are respectively clamped on the block 9, and the two limit The plane on which the shoulder 13 is located is gradually inclined toward the inclined plane from the plane on the inclined tongue 5 toward the inclined plane. The oblique tongue 5 is arranged on the guide rod 4 by turning it. When installing doors with different opening and closing directions, you can directly rotate the oblique tongue 5 to change the direction of the oblique tongue 5 to adapt to doors with different opening and closing directions. The installation is more convenient. The door frame is clamped on the plane of the oblique tongue 5, and the rotating door drives the The oblique tongue 5 rotates around the rotating rod 7 in the direction of the upper slope of the oblique tongue 5, so that the end of the oblique tongue 5 located on the outer side of the lock box 1 gradually rotates into the lock box 1. When opening the door, the door can be directly pushed into the door, the door is opened quickly, and the structure is simple to install. Convenient, compared with the traditional oblique tongue 5 fixed on the guide rod 4, it is necessary to wait for the oblique tongue 5 to fully enter the lock box 1 to completely separate the oblique tongue 5 from the door frame before the door can be opened. The waiting time for unlocking the door is shorter and the efficiency is higher.

A rotating ring 30 is sleeved on the blocking post 17, and the slot 20 on the horizontal plate 19 is clamped on the rotating ring 30. When the oblique tongue 5 moves into the lock box 1 under the action of external force, the blocking post 17 The cross plate 19 is stuck on the card groove 20, and the horizontal plate 19 converts the sliding between the card groove 20 on the horizontal plate 19 and the blocking post 17 into rolling friction through the rotating ring 30, which greatly reduces the friction between the horizontal plate 19 and the blocking post 17. , to ensure that the card slot 20 on the horizontal plate 19 can be separated from the blocking post 17 when unlocking, which has strong practicability.

As shown in FIG. 4 , FIG. 5 and FIG. 6 , the locking mechanism 12 includes a locking piece 14 rotatably arranged in the lock box 1 , movably arranged in the lock box 1 and capable of reciprocating along the direction perpendicular to the side panel 2 . The carriage 15 and the fork 16 that drives the carriage 15 to move, a blocking post 17 is fixedly arranged at the lower end of the guide rod 4 , and the locking piece 14 includes a vertical plate 18 and a vertical plate 18 that is fixedly arranged at the lower end of the vertical plate 18 and moves away from it. The horizontal plate 19 extending in the direction of the side panel 2, the locking piece 14 can be rotated around the connection between the horizontal plate 19 and the vertical plate 18, the horizontal plate 19 is located below the stop column 17, the horizontal plate 19 is provided with a The clamping slot 20 for clamping the above-mentioned blocking post 17, the upper end of the vertical plate 18 is fixedly provided with a toggle rod 21 of the vertical vertical plate 18, and the lower end of the drag plate 15 is fixedly provided with a clamping rod 21 for clamping on the vertical plate 18. The toggle hook 22 is mounted on the toggle lever 21 and drives the toggle lever 21 to move away from the side panel 2. The lock box 1 is fixedly provided with a drive cross plate 19 away from the side panel 2. The connection part of the plate 18 rotates upward and makes the clamping slot 20 clamp to the torsion spring 23 on the blocking post 17 . The shifting fork 16 is rotated and arranged in the lock box 1 through a rotating shaft 24 , a sliding groove 25 extending through the sliding plate 15 is formed on the sliding plate 15 , the rotating shaft 24 is inserted in the sliding groove 25 , and the sliding plate 15 A retraction-preventing groove 26 extending through the carriage 15 is formed on the upper part, and a protruding block 27 is fixedly arranged on the lower end of the fork 16 to be clamped in the retraction-preventing groove 26 . One end of the horizontal plate 19 away from the vertical plate 18 is fixedly provided with a hook plate 28 which is vertical to the horizontal plate 19 , and one end of the torsion spring 23 is fixed on the hook plate 28 .

As shown in FIG. 7 , when the door is opened, the motor drives the fork 16 to drive the carriage 15 to move toward the inside of the lock box 1 , and the carriage 15 drives the vertical plate 18 to connect the vertical plate 18 and the horizontal plate 19 through the toggle hook 22 and the toggle rod 21 . Rotate in the direction away from the side panel 2, so that the end of the horizontal plate 19 away from the vertical plate 18 is rotated downward, so that the slot 20 on the horizontal plate 19 is separated from the blocking post 17 to complete the unlocking of the guide rod, push the door, and the door frame passes the oblique tongue. The plane on 5 drives the oblique tongue 5 to rotate around the rotating rod 7 through the rotation slot 8, and at the same time, the bosses 6 on both sides of the oblique tongue 5 are turned over at the joint of the side panel 2, and the guide rod 4 is driven to move into the lock box 1 and compress the spring. 11. When the oblique tongue 5 is rotated until the limiting shoulder 13 on the other side of the oblique tongue 5 is in contact with another stopper 9, the door continues to rotate, and the door frame pushes the oblique tongue 5 and the guide rod 4 to lock along the length of the guide rod 4. The inside of the box 1 is moved until the latch 5 fully enters the lock box 1 and the door is opened. After the door is opened, the spring 11 between the stopper 9 and the guide piece 3 drives the guide rod 4 to move towards the side panel 2, and the oblique tongue 5 rotates around the rotation rod 7 through the rotation groove 8, and simultaneously makes the oblique tongue 5 go around the boss 6 and the side panel 2. The joint of the side panel 2 is rotated and the end of the oblique tongue 5 is moved to the outside of the lock box 1 until the stopper 9 presses the boss 6 on the oblique tongue 5 against the side panel 2, and the door is opened. , the motor drives the fork 16 to rotate to drive the carriage 15 to move to the outside of the lock box 1 , the toggle hook 22 on the carriage 15 releases the support for the toggle rod 21 , and the vertical plate 18 surrounds the connection between the vertical plate 18 and the horizontal plate 19 Moving towards the side panel 2 , the end of the horizontal plate 19 away from the vertical plate 18 rotates in the direction of the vertical plate 18 so that the slot 20 on the horizontal plate 19 is fastened on the blocking post 17 to complete the locking of the oblique tongue 5 .

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the described specific embodiments or substitute in similar manners, but will not deviate from the spirit of the present invention or go beyond the definitions of the appended claims range.

Claims (7)

1. An oblique tongue mechanism, installed in the lock box and perpendicular to the side panel on the lock box, is characterized in that it includes a guide piece that is fixedly arranged in the lock box and parallel to the side panel and is movably arranged on the guide piece and can A guide rod that reciprocates in the direction perpendicular to the guide piece, one end of the guide rod facing the side panel is rotated and provided with a diagonal tongue, one end of the diagonal tongue is located outside the lock box, and the end of the guide rod facing the diagonal tongue is the upper end , the two sides of the oblique tongue located in the inner end of the lock box are respectively fixed with a boss abutting on the inner wall of the above-mentioned side panel, and the oblique tongue can be turned over around the convex platform on both sides of the oblique tongue and the side panel abutting Push the guide rod to move to the inside of the lock box and gradually rotate the end of the oblique tongue outside the lock box into the lock box. The guide rod is sleeved with a spring that drives the guide rod to move in the direction of the side panel. A locking mechanism for locking the guide rod is provided. 2 . The oblique tongue mechanism according to claim 1 , wherein a rotating rod is fixedly arranged on the upper end of the guide rod, the length direction of the rotating rod is parallel to the guide piece, and the lower end of the oblique tongue A rotation groove extending toward the inside of the oblique tongue is provided, and the above-mentioned rotation rod is clamped in the rotation groove and enables the oblique tongue to rotate around the rotation rod. A stopper is respectively fixed on both sides of the upper end of the guide rod. The lower end of the oblique tongue is provided with a guide groove which penetrates the oblique tongue and the rotating groove and is matched with the block. 3 . The oblique tongue mechanism according to claim 2 , wherein the upper ends of both ends of the guide groove are respectively fixed with a limiting shoulder, and the oblique tongue can rotate around the rotating rod to make the two limiting shoulders 3 . The planes on which the two limiting shoulders are located are gradually inclined toward the inclined plane from the plane on the inclined tongue to the inclined plane direction. 4. A latch mechanism according to claim 1, wherein the locking mechanism comprises a locking piece rotatably arranged in the lock box, movably arranged in the lock box and capable of being in a direction perpendicular to the side panel The reciprocating carriage and the fork that drives the carriage to move, a blocking post is fixedly arranged at the lower end of the guide rod, and the locking piece includes a vertical plate and a horizontal plate that is fixedly arranged on the lower end of the vertical plate and extends away from the side panel. The locking piece can be rotated around the connection between the horizontal plate and the vertical plate. The horizontal plate is located below the blocking post, and a slot for clamping the blocking post is provided on the horizontal plate. The upper end of the rod is fixedly provided with a toggle rod of a vertical vertical rod, and the lower end of the drag plate is fixedly provided with a toggle hook for being clamped on the toggle rod and driving the toggle rod to move away from the side panel. A torsion spring that drives the end of the horizontal plate away from the side panel to rotate upward around the connection between the horizontal plate and the vertical plate and makes the card slot clamp on the blocking post is fixed in the lock box. 5 . The oblique tongue mechanism according to claim 4 , wherein the fork is rotated and arranged in the lock box through a rotating shaft, a sliding groove is provided on the carriage, and a sliding groove is formed on the carriage, and the shaft is inserted into the lock box. 6 . In the sliding groove, a retraction-preventing groove is formed on the carriage, which penetrates through the carriage, and a protruding block is fixedly arranged on the lower end of the shifting fork to be clamped in the retraction-preventing groove. 6 . The oblique tongue mechanism according to claim 4 , wherein one end of the horizontal plate away from the vertical plate is fixedly provided with a hook plate of a vertical horizontal plate, and one end of the torsion spring is fixedly arranged on the hook plate. 7 . . 7 . The oblique tongue mechanism according to claim 4 , wherein a rotating ring is sleeved on the blocking column, and the clamping groove on the horizontal plate is clamped on the rotating ring. 8 .

Images