CN212897970U - Latch mechanism - Google Patents

Abstract

The utility model provides a latch bolt mechanism. It has solved the tool to lock and has needed great power when opening the door, uses comparatively inconvenient problem. The utility model drives the planker to move towards the interior of the lock box by driving the shifting fork when opening the door, the planker drives the vertical plate to rotate around the joint of the vertical plate and the horizontal plate towards the direction far away from the side panel by the shifting hook and the shifting rod, so that one end of the horizontal plate far away from the vertical plate rotates downwards to separate the clamping groove on the horizontal plate from the retaining column to unlock the guide column, the door frame is clamped on the plane of the latch bolt, the rotating door drives the latch bolt to rotate towards the upper inclined plane direction of the latch bolt by rotating the driving rod, so that the end part of the latch bolt positioned at the outer side of the lock box rotates into the lock box gradually, the door is rapid and labor-saving, the friction between the latch bolt and the door frame is greatly reduced by rotating the latch bolt to reduce the abrasion of the, when the door with different opening and closing directions is installed, the direction of the latch bolt can be changed by directly rotating the latch bolt to adapt to the doors with different opening and closing directions, and the installation is more convenient.

Description

Latch mechanism

Technical Field

The utility model discloses equipment belongs to tool to lock technical field, in particular to latch mechanism to one side.

Background

With the development of locks, more and more electronic door locks or ordinary door locks are generally applied to occasions such as hotels, families and the like. The inclined bolt is usually fixedly arranged on the sliding rod in the existing door lock, the sliding rod is driven to move along the length direction of the sliding rod through a driving structure inside the lock to control the entrance and exit of the inclined bolt, when the door is opened, because the plane on the inclined bolt is attached to the door frame, the inclined bolt needs to be driven to move towards the inside of the lock box by overcoming the sliding friction between the door frame and the inclined bolt, the plane on the inclined bolt is scraped with the door frame, the inclined bolt can generate large abrasion after being used for a long time, and large force is needed when the door is opened, so that the door lock is inconvenient to use.

Disclosure of Invention

The utility model discloses equipment needs great power to the tool to lock when opening the door, uses comparatively inconvenient not enough, provides a latch mechanism to one side.

The invention aims to be realized by the following technical scheme: a latch bolt mechanism is arranged in a lock box and is vertical to a side panel on the lock box, and is characterized by comprising a guide sheet which is fixedly arranged in the lock box and is parallel to the side panel and a guide rod which is movably arranged on the guide sheet and can reciprocate in the direction vertical to the guide sheet, wherein one end of the guide rod, facing the side panel, is rotatably provided with a latch bolt, one end of the latch bolt is positioned at the outer side of the lock box, one end of the guide rod facing the latch bolt is the upper end, two sides of the latch bolt positioned at the inner end of the lock box are respectively and fixedly provided with a lug boss attached to the inner wall of the side panel, the latch bolt can turn over around the joint of the lug bosses at the two sides of the latch bolt and the side panel to push the guide rod to move towards the inside of the lock box and enable the end part of the latch bolt positioned at the outer side of the lock box to gradually rotate into the lock box, the guide rod is sleeved with a spring for driving the guide rod to move towards the side panel, and the lock box is provided with a locking mechanism for locking the guide rod.

Preferably, the upper end of guide bar is fixed and is provided with a dwang, the length direction of this dwang is parallel with above-mentioned guide plate, the rotation groove that has directional latch bolt inside extension is seted up to the lower extreme of latch bolt, above-mentioned dwang joint is in this rotation inslot and makes the latch bolt rotate around this dwang, the both sides of guide bar upper end are fixed respectively and are provided with a dog, the latch bolt lower extreme is seted up one and is run through latch bolt and rotation groove and with dog matched with guide way, the latch bolt can revolute the rotation rod and make the both ends difference joint of guide way on the dog.

Preferably, the upper ends of the two ends of the guide groove are respectively and fixedly provided with a limiting shoulder, the latch bolt can rotate around the rotating rod to enable the two limiting shoulders to be respectively clamped on the stop block, and the plane where the two limiting shoulders are located gradually inclines towards the inclined plane from the plane on the latch bolt to the inclined plane direction.

Preferably, the locking mechanism comprises a locking piece, a dragging plate and a shifting fork, wherein the locking piece is rotatably arranged in the lock box, the dragging plate is movably arranged in the lock box and can reciprocate in the direction perpendicular to the side panel, the shifting fork drives the dragging plate to move, the lower end of the guide rod is fixedly provided with a retaining column, the locking piece comprises a vertical plate and a transverse plate which is fixedly arranged at the lower end of the vertical plate and extends in the direction away from the side panel, the locking piece can rotate around the joint of the transverse plate and the vertical plate, the transverse plate is positioned below the retaining column, a clamping groove used for clamping the retaining column is formed in the transverse plate, the upper end of the vertical plate is fixedly provided with a shifting rod perpendicular to the vertical plate, the lower end of the dragging plate is fixedly provided with a shifting hook used for clamping the shifting rod and driving the shifting rod to move in the direction away from the side panel, and the end part, far away from the transverse plate, of the transverse plate is A torsion spring.

Preferably, the shifting fork is rotatably arranged in the lock box through a rotating shaft, a sliding groove penetrating through the dragging plate is formed in the dragging plate, the rotating shaft is inserted into the sliding groove, a stopping groove penetrating through the dragging plate is formed in the dragging plate, and a protruding block clamped in the stopping groove is fixedly arranged at the lower end of the shifting fork.

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

Preferably, the stop post is sleeved with a rotating ring, and the clamping groove in the transverse plate is clamped on the rotating ring.

Compared with the prior art, the utility model drives the planker to move towards the interior of the lock box by driving the shifting fork when opening the door, the planker drives the vertical plate to rotate around the joint of the vertical plate and the horizontal plate towards the direction far away from the side panel by the shifting hook and the shifting rod, so that one end of the horizontal plate far away from the vertical plate rotates downwards to enable the clamping groove on the horizontal plate to be separated from the retaining column to unlock the guide column, the door frame is clamped on the plane of the latch bolt, the rotating door drives the latch bolt to rotate towards the direction of the upper inclined plane of the latch bolt by rotating the rotating door so that the end part of the latch bolt positioned at the outer side of the lock box rotates gradually into the lock box, the friction between the latch bolt and the door frame is greatly reduced by the rotating mode of the latch bolt when opening the door, the structure is simple and the practicability is strong, and the latch bolt is arranged on the guide rod by rotating the latch bolt directly to change the orientation of the latch bolt when, the installation is comparatively convenient.

Drawings

FIG. 1 is a view of the overall structure of the utility model after installation;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a cut-away view of the latch tongue;

FIG. 4 is an overall structural view of the carriage;

FIG. 5 is an overall structural view of the shift fork;

FIG. 6 is an overall structural view of the locking tab;

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

The labels in the figure are: 1. a lock case; 2. a side panel; 3. a guide piece; 4. a guide bar; 5. a latch bolt; 6. a boss; 7. rotating the rod; 8. a rotating groove; 9. a stopper; 10. a guide groove; 11. a spring; 12. a locking mechanism; 13. A limiting shoulder; 14. a locking piece; 15. a carriage; 16. a shifting fork; 17. a bumping post; 18. a vertical plate; 19. a transverse plate; 20. a card slot; 21. a poke rod; 22. hooking; 23. a torsion spring; 24. a rotating shaft; 25. a sliding groove; 26. a backstop slot; 27. a bump; 28. hooking the plate; 30. and (6) rotating the ring.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which: as shown in fig. 1, the latch mechanism, which is installed in a lock case 1 and perpendicular to a side panel 2 on the lock case 1, includes a guide piece 3 fixedly installed in the lock case 1 and parallel to the side panel 2 and a guide rod 4 movably installed on the guide piece 3 and capable of reciprocating in a direction perpendicular to the guide piece 3, wherein one end of the guide rod 4 facing the side panel 2 is rotatably provided with a latch 5, one end of the latch 5 is located at the outer side of the lock case 1, and the lock case 1 is provided with a locking mechanism 12 for locking the guide rod 4.

As shown in fig. 2 and 3, one end of the guide rod 4 facing the latch bolt 5 is an upper end, two sides of the latch bolt 5 at the inner end of the lock case 1 are respectively fixedly provided with a boss 6 attached to the inner wall of the side panel 2, 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 guide plate 3, the lower end of the latch bolt 5 is provided with a rotating groove 8 extending toward the inside of the latch bolt 5, the rotating rod 7 is clamped in the rotating groove 8 and enables the latch bolt 5 to rotate around the rotating rod 7, two sides of the upper end of the guide rod 4 are respectively fixedly provided with a stopper 9, the lower end of the latch bolt 5 is provided with a guide groove 10 penetrating through the latch bolt 5 and the rotating groove 8 and matching with the stopper 9, the latch bolt 5 can rotate around the rotating rod 7 and enables two ends of the guide groove 10 to be respectively clamped on the, the guide rod 4 is sleeved with a spring 11 for driving the guide rod 4 to move towards the side panel 2. The upper ends of the two ends of the guide groove 10 are respectively and fixedly provided with a limiting shoulder 13, the latch bolt 5 can rotate around the rotating rod 7 to enable the two limiting shoulders 13 to be respectively clamped on the stop block 9, and the plane where the two limiting shoulders 13 are located gradually inclines towards the inclined plane from the plane on the latch bolt 5 to the inclined plane direction. By turning the latch tongue 5 on the guide rod 4. When installing the door of different directions that open and shut, the accessible directly rotates latch bolt 5 and changes the door of different directions that open and shut of latch bolt 5 orientation, it is comparatively convenient to install, the door frame joint is on the plane of latch bolt 5, the pivoted door drives latch bolt 5 to revolute and moves pole 7 and rotate to the inclined plane direction on the latch bolt 5 and make the tip that the latch bolt 5 is located the lock box 1 outside rotate gradually and advance in the lock box 1, can directly push away the door and get into when opening the door, it is comparatively quick to open the door, moreover, the steam generator is simple in structure, easy to operate, fix on guide bar 4 for traditional latch bolt 5, need wait for the latch bolt 5 to get into in the lock box 1 completely and make the latch bolt 5 and door frame break away from completely and just can open the door, the time.

The cover is equipped with a swivel becket 30 on the bumping post 17, and draw-in groove 20 joint on the above-mentioned diaphragm 19 is on this swivel becket 30, and when latch bolt 5 removed in lock box 1 under the exogenic action, the bumping post 17 card dies on draw-in groove 20, and slide between draw-in groove 20 and the bumping post 17 on diaphragm 19 through swivel becket 30 changes rolling friction into, reduces the friction between diaphragm 19 and the bumping post 17 by a wide margin, and draw-in groove 20 on the diaphragm 19 can break away from bumping post 17 when guaranteeing the unblock, and the practicality is stronger.

As shown in fig. 4, 5 and 6, the locking mechanism 12 includes a locking plate 14 rotatably disposed in the lock case 1, a carriage 15 movably disposed in the lock case 1 and capable of reciprocating in a direction perpendicular to the side panel 2, and a fork 16 for driving the carriage 15 to move, a stop pillar 17 is fixedly disposed at a lower end of the guide bar 4, the locking plate 14 includes a vertical plate 18 and a horizontal plate 19 fixedly disposed at a lower end of the vertical plate 18 and extending in a direction away from the side panel 2, the locking plate 14 is capable of rotating around a connection between the horizontal plate 19 and the vertical plate 18, the horizontal plate 19 is located below the stop pillar 17, a slot 20 for engaging with the stop pillar 17 is disposed on the horizontal plate 19, a dial rod 21 perpendicular to the vertical plate 18 is fixedly disposed at an upper end of the vertical plate 18, a dial hook 22 for engaging with the dial rod 21 and driving the dial rod 21 to move in a direction away from the side panel 2 is fixedly disposed at a lower end of the carriage 15, a torsion spring 23 is fixedly arranged in the lock box 1, which drives the end part of the transverse plate 19 far away from the side panel 2 to rotate upwards around the connecting part of the transverse plate 19 and the vertical plate 18 and enables the clamping groove 20 to be clamped on the retaining post 17. The shifting fork 16 is rotatably arranged in the lock box 1 through a rotating shaft 24, a sliding groove 25 penetrating through the carriage 15 is formed in the carriage 15, the rotating shaft 24 is inserted in the sliding groove 25, a retaining groove 26 penetrating through the carriage 15 is formed in the carriage 15, and a bump 27 clamped in the retaining groove 26 is fixedly arranged at the lower end of the shifting fork 16. And a hook plate 28 vertical to the transverse plate 19 is fixedly arranged at one end of the transverse plate 19 far away from the vertical plate 18, and one end of the torsion spring 23 is fixedly arranged on the hook plate 28.

As shown in fig. 7, when the door is opened, the motor drives the shifting fork 16 to drive the carriage 15 to move towards the interior of the lock box 1, the carriage 15 drives the vertical plate 18 to rotate around the joint of the vertical plate 18 and the horizontal plate 19 towards the direction far away from the side panel 2 through the shifting hook 22 and the shifting rod 21, so that one end of the horizontal plate 19 far away from the vertical plate 18 rotates downwards to make the clamping groove 20 on the horizontal plate 19 separate from the stop post 17 to complete unlocking the guide rod, the door frame drives the latch 5 to rotate around the rotating rod 7 through the rotating groove 8 through the plane on the latch 5, meanwhile, the joint of the lug boss 6 on two sides of the latch 5 and the side panel 2 is turned over to drive the guide rod 4 to move towards the interior of the lock box 1 and compress the spring 11, when the latch 5 rotates until the limit shoulder 13 on the other side of the latch 5 contacts with the other stop 9, the door continues to rotate, the door frame pushes the latch 5 and the guide rod 4 to move towards the, the door is opened. After the door is opened, the guide rod 4 is driven to move towards the side panel 2 through the spring 11 between the stop block 9 and the guide sheet 3, the latch bolt 5 rotates around the rotating rod 7 through the rotating groove 8, meanwhile, the latch bolt 5 rotates around the joint of the boss 6 and the side panel 2, the end part of the latch bolt 5 moves towards the outside of the lock box 1, until the stop block 9 presses the boss 6 on the latch bolt 5 against the side panel 2, the door opening is completed, when the door is locked, the pulling fork 16 is driven by the motor to rotate to drive the pulling plate 15 to move towards the outside of the lock box 1, the pulling hook 22 on the pulling fork 15 releases the support of the pulling rod 21, the vertical plate 18 moves towards the side panel 2 around the joint of the vertical plate 18 and the transverse plate 19, and one end of the transverse plate 19, which is far away from the vertical plate 18, rotates towards the vertical plate 18, so that the clamping.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (7)

1. A latch bolt mechanism is arranged in a lock box and is vertical to a side panel on the lock box, and is characterized by comprising a guide piece which is fixedly arranged in the lock box and is parallel to the side panel and a guide rod which is movably arranged on the guide piece and can reciprocate in the direction vertical to the guide piece, wherein one end of the guide rod, facing the side panel, is rotatably provided with a latch bolt, one end of the latch bolt is positioned outside the lock box, one end of the guide rod, facing the latch bolt, is an upper end, two sides of the latch bolt, positioned at the inner end part of the lock box, are respectively and fixedly provided with a boss attached to the inner wall of the side panel, the latch bolt can overturn around the joint of the bosses at the two sides of the latch bolt and the side panel to push the guide rod to move towards the inside of the lock box and enable the end part, positioned outside the lock box, of the latch bolt to gradually rotate into the lock box, and the lock box is provided with a locking mechanism for locking the guide rod.

2. The latch bolt mechanism according to claim 1, wherein a rotating rod is fixedly disposed at an upper end of the guide rod, the rotating rod has a length direction parallel to the guide piece, a rotating groove is formed at a lower end of the latch bolt and extends toward an inside of the latch bolt, the rotating rod is engaged with the rotating groove and rotates around the rotating rod, a stopper is fixedly disposed at both sides of the upper end of the guide rod, a guide groove is formed at a lower end of the latch bolt and penetrates the latch bolt and the rotating groove and is engaged with the stopper, and the latch bolt is capable of rotating around the rotating rod to engage both ends of the guide groove with the stopper.

3. The latch bolt mechanism according to claim 2, wherein a limiting shoulder is fixedly provided at each of the upper ends of the two ends of the guide slot, the latch bolt is capable of rotating around the rotating rod to make the two limiting shoulders respectively engage with the stoppers, and the plane of the two limiting shoulders gradually inclines from the plane on the latch bolt to the direction of the inclined plane.

4. The latch mechanism according to claim 1, wherein the locking mechanism comprises a locking plate rotatably disposed in the lock case, a carriage movably disposed in the lock case and capable of reciprocating in a direction perpendicular to the side panel, and a shift fork for driving the carriage to move, a stop post is fixedly disposed at a lower end of the guide rod, the locking plate comprises a vertical plate and a transverse plate fixedly disposed at a lower end of the vertical plate and extending in a direction away from the side panel, the locking plate can rotate around a joint between the transverse plate and the vertical plate, the transverse plate is disposed below the stop post, a slot for engaging with the stop post is disposed on the transverse plate, a shift rod perpendicular to the vertical plate is fixedly disposed at an upper end of the vertical plate, a shift hook is fixedly disposed at a lower end of the carriage and used for engaging with the shift rod and driving the shift rod to move in a direction away from the shift rod, and a torsion spring for driving the end part of the transverse plate far away from the side panel to rotate upwards around the connecting part of the transverse plate and the vertical plate and enabling the clamping groove to be clamped on the retaining column is fixedly arranged in the lock box.

5. The latch mechanism according to claim 4, wherein the fork is rotatably disposed in the lock case by a shaft, the carriage has a slide slot extending therethrough, the shaft is inserted into the slide slot, the carriage has a retaining slot extending therethrough, and a protrusion is fixedly disposed at a lower end of the fork and engaged with the retaining slot.

6. The latch mechanism of claim 4, wherein a hook plate is fixed to the cross plate at an end of the cross plate away from the vertical plate, and the torsion spring is fixed to the hook plate at an end thereof.

7. The latch mechanism according to claim 4, wherein the retaining post is sleeved with a rotating ring, and the engaging groove of the cross plate is engaged with the rotating ring.

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