CN218844020U

CN218844020U - Three-grab lock mechanism

Info

Publication number: CN218844020U
Application number: CN202320013485.2U
Authority: CN
Inventors: 冯睿
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-04-11
Anticipated expiration: 2033-01-04

Abstract

A three-grab lock mechanism is arranged on a door frame and a door leaf and comprises a lock rod, one end of the lock rod extends into the door leaf, a rotating disc is rotatably arranged on the door leaf in a clamped mode on the lock rod, three fixing rods are evenly distributed on the end face of the rotating disc, the fixing rods are connected with a lock core rod arranged on the edge of the door leaf through a connecting rod structure, a lock core seat with a first tooth surface is arranged on the door frame, the lock core rod slides and moves under the driving of the connecting rod structure to be meshed with the first tooth surface of the lock core seat, so that the door leaf and the door frame are in a mutually locked state, the lock core rod and the lock core seat are driven to be meshed and locked through the connecting rod structure, the problem of insufficient lubrication caused by gear and rack meshing is solved, compared with the meshing of a traditional hole and a traditional shaft, the locking reliability is improved, and the problem that the lock core rod cannot be broken and is clamped in the door frame to cause that the door leaf cannot be opened is solved.

Description

Three-grab lock mechanism

Technical Field

The utility model relates to a three latch mechanisms belongs to the tool to lock field.

Background

The existing lockset is various and comprises a spherical lock, a mortise lock and the like, the lockset is generally used for doors, windows and the like, and the existing lockset also comprises a three-grab lock, wherein the three-grab lock refers to the lockset locked with a lock hole through three lock cylinders, but the existing three-grab lock is generally driven through a rack and pinion, and the rack and pinion is inconvenient to use due to the problem of locking or unlocking retardation caused by insufficient lubrication of a meshing part under long-time trial by the driving method.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects existing in the prior art and providing a three-grab locking mechanism.

A three-grab lock mechanism is arranged on a door frame and a door leaf and comprises a lock rod, one end of the lock rod extends into the door leaf, a rotating disc is connected to the lock rod in a clamping mode and rotatably mounted on the door leaf, three fixing rods are evenly distributed on the end face of the rotating disc, the fixing rods are connected with a lock core rod arranged on the edge of the door leaf through a connecting rod structure, a lock core seat with a first tooth surface is arranged on the door frame, the lock core rod slides and moves under the driving of the connecting rod structure to be meshed with the first tooth surface of the lock core seat, so that the door leaf and the door frame are in a mutually locked state, the lock core rod is driven to be meshed with the lock core seat through the connecting rod structure to be locked, the problem of insufficient lubrication caused by meshing of a gear and a rack is solved, and compared with the traditional meshing of a hole and a shaft, the locking reliability is improved, and the lock core rod cannot be broken and clamped in the door frame, so that the door leaf cannot be opened.

Preferably, the end of the lock core rod is provided with a locking block, the locking block is provided with a second tooth surface matched with the first tooth surface of the lock core seat, the number of teeth and the tooth space on the first tooth surface and the second tooth surface can be designed according to the size of an actual door leaf, and the flexibility of the mechanism is improved.

Furthermore, the lock core rod comprises a limiting rod and a sliding rod, a fixed seat is arranged on the door leaf, a first fixed block is arranged on the fixed seat, a sliding hole which is sleeved with the sliding rod is formed in the first fixed block, the lock rod drives the rotating disc to rotate, the rotating disc rotates to drive the connecting rod structure to move, the lock core rod connected with the connecting structure slides in the fixed seat, and the meshing state of the lock core rod and the lock core seat is controlled.

Further, be equipped with first spout on the slide bar, be equipped with on the first fixed block and be the locking hole of vertical setting with the slide hole, be equipped with the locking lever that is located the locking hole in the first spout, locking lever top both sides are equipped with the stopper, the locking hole top is equipped with the spacing groove that matches with the stopper, the locking lever lateral wall is equipped with inside circular arc step, the locking lever makes stopper and spacing groove joint through circular arc step downstream when the lock core pole does not mesh with the lock core seat, makes the lock core pole can not random shift position through the joint of spacing groove with the stopper under the unblock state, and when needing the locking, the locking lever also can lock smoothly through circular arc step upstream.

Preferably, a second fixing block is arranged on the fixing seat, a clamping hole is formed in the second fixing block, the limiting rod is clamped with the second fixing block through the clamping hole, and the rotation angle of the lock core rod is avoided, so that the first tooth surface and the second tooth surface cannot be accurately meshed to influence locking of the door leaf and the door frame.

Furthermore, the sliding rod is sleeved with a limiting sleeve positioned between the first fixing block and the second fixing block, so that the excessive moving stroke of the lock core rod is avoided.

Preferably, the connecting rod structure comprises a first connecting rod, the other end of the first connecting rod is rotatably connected with a second connecting rod, a sliding block is fixed on the door leaf, a through groove is formed in the end portion of the lock cylinder rod, a second sliding groove is formed in the through groove, the second connecting rod is located in the through groove and extends into the second sliding groove through the sliding block to be connected with the lock cylinder rod in a sliding mode, the lock cylinder rod is driven to move through the connecting rod structure, and the structure and the transmission path are simple and reliable.

Furthermore, one end of the first connecting rod is provided with a third sliding groove, the fixed rod is connected with the third sliding groove in a sliding mode, the rotating disc rotates to drive the fixed rod to rotate, the fixed rod drives the connecting rod structure to move, the number of the fixed rod and the number of the connecting rod structure can be increased or reduced according to actual conditions, and the number of the fixed rod and the number of the connecting rod structure are not limited to three.

Preferably, a fourth sliding groove is formed in the end of the second connecting rod, and the second connecting rod is connected with the door leaf in a sliding mode through the fourth sliding groove.

Preferably, the lock rod is provided with a rotating handle outside the door leaf, and the rotating handle is rotated to drive the lock rod to rotate, so that the door leaf and the door frame are locked or unlocked.

The utility model has the advantages as follows: the locking core rod and the locking core seat are driven to be meshed and locked through the connecting rod structure, the problem of insufficient lubrication caused by meshing of a gear and a rack is avoided, the locking core rod and the locking core seat are meshed through tooth surfaces, the locking core rod is compared with the traditional holes and shafts in a meshed mode, the locking reliability is improved, and the locking core rod cannot be broken and clamped in a door frame, so that the door leaf cannot be opened.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.

Fig. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a view showing a main body structure with a door frame removed;

FIG. 3 is a view showing a structure of a main body with a door leaf and a door frame removed;

FIG. 4 is an enlarged detail view of FIG. 3 at A;

FIG. 5 is an enlarged detail view at B in FIG. 3;

FIG. 6 is a schematic view of the main structure of the installation position of the cylinder rod;

FIG. 7 is an exploded view of the body structure of FIG. 6;

in the figure, 1, a door frame; 11. a lock cylinder seat; 111. a first tooth surface; 2. a door leaf; 21. a lock lever; 211. rotating the handle; 22. rotating the disc; 221. fixing the rod; 23. a slider; 3. a connecting rod structure; 31. a first link; 311. a third chute; 32. a second link; 321. a fourth chute; 4. a lock cylinder rod; 41. a locking block; 411. a second tooth surface; 42. a limiting rod; 43. a slide bar; 431. a first chute; 44. a limiting sleeve; 45. a through groove; 451. a second chute; 5. a fixed seat; 51. a first fixed block; 511. a slide hole; 512. a locking hole; 5121. a limiting groove; 52. a locking lever; 521. a limiting block; 522. a circular arc step; 53. a second fixed block; 531. a clamping hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used to distinguish two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are merely for convenience of expression and should not be construed as limitations of the embodiments of the present invention, and the following embodiments do not describe this one by one.

The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings only. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the invention.

As shown in fig. 1-7, for the utility model relates to an embodiment of three grab lock mechanism, locate on door frame 1 and door leaf 2, three grab lock mechanism includes that one end extends to the locking lever 21 in the door leaf 2, locking lever 21 joint has the rolling disc 22 of rotation installation on door leaf 2, the equipartition of rolling disc 22 terminal surface has three dead lever 221, dead lever 221 is connected with the lock core bar 4 of locating door leaf 2 border through link structure 3, be equipped with the lock core seat 11 that has first flank of tooth 111 on door frame 1, lock core bar 4 slides under link structure 3's drive and removes and the first flank of tooth 111 meshing of lock core seat 11 makes door leaf 2 and door frame 1 be in the interlocking state, drive lock core bar 4 and lock core seat 11 meshing locking through setting up link structure 3, the problem that the lubrication that the gear rack meshing produced is not enough has been avoided, and lock core bar 4 and lock core seat 11 are through the flank of tooth meshing, compare in the meshing of traditional hole with the axle, the reliability of locking has been improved, and the lock core bar 4 can not also can not produce the fracture phenomenon card in door frame 1, lead to the problem that leads to 2 can not open.

The end of the lock core bar 4 is provided with a locking block 41, the locking block 41 is provided with a second tooth surface 411 matched with the first tooth surface 111 of the lock core seat 11, the number of teeth and the tooth space on the first tooth surface 111 and the second tooth surface 411 can be designed according to the size of the actual door leaf 2, and the flexibility of the mechanism is improved.

The lock core rod 4 comprises a limiting rod 42 and a sliding rod 43, a fixed seat 5 is arranged on the door leaf 2, a first fixed block 51 is arranged on the fixed seat 5, a sliding hole 511 which is sleeved with the sliding rod 43 is arranged on the first fixed block 51, the lock rod 21 drives the rotating disc 22 to rotate, the rotating disc 22 rotates to drive the connecting rod structure 3 to move, the lock core rod 4 connected with the connecting structure slides in the fixed seat 5, and the meshing state of the lock core rod 4 and the lock core seat 11 is controlled.

The sliding rod 43 is provided with a first sliding groove 431, the first fixing block 51 is provided with a locking hole 512 vertically arranged with the sliding hole 511, the first sliding groove 431 is internally provided with a locking rod 52 positioned in the locking hole 512, two sides of the top of the locking rod 52 are provided with limit blocks 521, the top of the locking hole 512 is provided with limit grooves 5121 matched with the limit blocks 521, the side wall of the locking rod 52 is provided with an inward arc step 522, the locking rod 52 moves downwards through the arc step 522 when the lock core rod 4 is not engaged with the lock core holder 11 so that the limit blocks 521 are clamped with the limit grooves 5121, the lock core rod 4 cannot move randomly through the clamping of the limit grooves 5121 and the limit blocks 521 in an unlocking state, and when locking is required, the locking rod 52 can also be locked smoothly through the upward movement of the arc step 522.

The second fixing block 53 is arranged on the fixing seat 5, the clamping hole 531 is formed in the second fixing block 53, the limiting rod 42 is clamped with the second fixing block 53 through the clamping hole 531, the rotation angle of the lock core rod 4 is avoided, the first tooth surface 111 and the second tooth surface 411 cannot be meshed accurately, and locking of the door leaf 2 and the door frame 1 is affected. The sliding rod 43 is sleeved with a limiting sleeve 44 positioned between the first fixing block 51 and the second fixing block 53, so that the over-travel of the lock cylinder rod 4 is avoided.

The lock lever 21 is provided with a turning handle 211 outside the door 2, and the turning handle 211 drives the lock lever 21 to turn, thereby locking or unlocking the door 2 and the door frame 1.

The utility model discloses be different from above-mentioned embodiment, refer to and show 1-7, link structure 3 includes first connecting rod 31, the first connecting rod 31 other end rotates and is connected with second connecting rod 32, be fixed with sliding block 23 on the

door leaf

2, 4 tip on the lock core pole are equipped with logical groove 45, be equipped with second spout 451 on leading to groove 45, second connecting rod 32 is located logical groove 45 and extends to in the second spout 451 through sliding block 23 and lock core pole 4 sliding connection, drive lock core pole 4 through link structure 3 and remove, structure and transmission path are simple and reliable.

One end of the first link 31 is provided with a third sliding slot 311, the fixing rod 221 is slidably connected to the third sliding slot 311, the rotating disc 22 rotates to drive the fixing rod 221 to rotate, the fixing rod 221 drives the link structure 3 to move, the number of the fixing rods 221 and the number of the link structures 3 may also be increased or decreased according to actual situations, and is not limited to three. The end of the second link 32 is provided with a fourth sliding slot 321, and the second link 32 is slidably connected to the door leaf 2 through the fourth sliding slot 321.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

While the invention has been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the specific embodiments disclosed. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. The utility model provides a three grab lock mechanism, locates on door frame and the door leaf, its characterized in that: the three-grab lock mechanism comprises a lock rod with one end extending into the door leaf, the lock rod is connected with a rotating disc rotatably arranged on the door leaf in a clamping mode, three fixing rods are evenly distributed on the end face of the rotating disc, the fixing rods are connected with a lock core rod arranged on the edge of the door leaf through a connecting rod structure, a lock core seat with a first tooth surface is arranged on the door frame, and the lock core rod slides and moves under the driving of the connecting rod structure to be meshed with the first tooth surface of the lock core seat, so that the door leaf and the door frame are in a mutually locked state.

2. The triple-grip lock mechanism of claim 1, wherein: the lock core is characterized in that a locking block is arranged at the end part of the lock core rod, and a second tooth surface matched with the first tooth surface of the lock core seat is arranged on the locking block.

3. A triple grip lock mechanism according to claim 1 wherein: the lock core rod comprises a limiting rod and a sliding rod, a fixed seat is arranged on the door leaf, a first fixed block is arranged on the fixed seat, and a sliding hole which is sleeved with the sliding rod is formed in the first fixed block.

4. A triple grip lock mechanism according to claim 3 wherein: the lock comprises a slide rod, a first fixing block and a second fixing block, wherein the slide rod is provided with a first chute, the first fixing block is provided with a locking hole which is vertically arranged with the slide hole, a locking rod which is positioned in the locking hole is arranged in the first chute, two sides of the top of the locking rod are provided with limit blocks, the top of the locking hole is provided with limit grooves matched with the limit blocks, the side wall of the locking rod is provided with inward arc steps, and the locking rod enables the limit blocks to be clamped with the limit grooves through the downward movement of the arc steps when the lock core rod is not meshed with a lock core seat.

5. A triple grip lock mechanism according to claim 3 wherein: the limiting rod is connected with the second fixing block in a clamping mode through the clamping hole.

6. The triple-grip lock mechanism of claim 5, wherein: the sliding rod is sleeved with a limiting sleeve positioned between the first fixing block and the second fixing block.

7. A triple grip lock mechanism according to claim 1 wherein: the connecting rod structure comprises a first connecting rod, the other end of the first connecting rod is rotatably connected with a second connecting rod, a sliding block is fixed on the door leaf, a through groove is formed in the end portion of the lock cylinder rod, a second sliding groove is formed in the through groove, and the second connecting rod is located in the through groove and extends into the second sliding groove through the sliding block to be connected with the lock cylinder rod in a sliding mode.

8. The triple grip lock mechanism of claim 7, wherein: one end of the first connecting rod is provided with a third sliding groove, and the fixing rod is connected with the third sliding groove in a sliding mode.

9. The triple grip lock mechanism of claim 7, wherein: and a fourth sliding groove is formed in the end part of the second connecting rod, and the second connecting rod is connected with the door leaf in a sliding manner through the fourth sliding groove.

10. A triple grip lock mechanism according to claim 1 wherein: the lock rod is provided with a rotating handle outside the door leaf.