CN218815753U - Oblique tongue transmission mechanism and door lock thereof - Google Patents

Abstract

The utility model discloses a latch bolt transmission mechanism, which comprises a lock body bottom shell, a carrying pole shifting fork, a carrying pole, a latch bolt shifting fork, a latch bolt assembly and an arc chute, wherein the latch bolt shifting fork is rotationally connected with a handle shifting wheel through hole, one end of the latch bolt shifting fork is abutted with a latch bolt shifting plate, and the other end of the latch bolt shifting fork is rotationally connected with the carrying pole; the shoulder pole is fixedly provided with a shoulder pole waist-shaped through hole and is connected to the bottom shell of the lock body in a sliding manner through the shoulder pole shaft and the waist-shaped through hole; the shoulder pole shifting fork is detachably abutted with the shoulder pole, and slides on the arc-shaped chute through the shoulder pole waist-shaped through hole and the shoulder pole shifting fork shaft so as to shift the shoulder pole to slide the shoulder pole, and the shoulder pole slides to drive the latch bolt shifting fork to rotate, so that a shifting block on the latch bolt shifting fork drives the latch bolt to retract; also discloses a door lock containing the oblique bolt transmission mechanism. The latch bolt transmission mechanism has simple structure and stable operation, and can be perfectly matched with a main bolt, an auxiliary bolt, a ground rod, a safety bolt and the like in the lock body, so that the door lock is labor-saving in unlocking and is not easy to block and trip.

Description

Oblique tongue transmission mechanism and door lock thereof

Technical Field

The utility model belongs to the technical field of mechanical lock technique and specifically relates to a latch bolt drive mechanism.

Background

At present, door locks on the market all contain latch bolts, which can be opened by a handle and opened by a key, and when a key is used for unlocking the latch bolts, the shifting direction needs to be changed, even the clutch coordination of a plurality of shifting blocks or gears in the lock body is needed, so that the latch bolt transmission mechanism is too complex. Complicated oblique tongue structure also leads to the situation that the oblique tongue card is died or can not normally pop out easily simultaneously, and this complicated structure has also increased the production degree of difficulty and manufacturing cost in addition, leads to the lock body to move unstably, causes to unblank to exert oneself too big, and the key breaks at the in-process of unblanking and takes place occasionally.

To a great deal of not enough of current oblique tongue drive mechanism in the market, beat and wait to solve and develop an oblique tongue drive mechanism:

1. the oblique tongue transmission mechanism has simple and stable structure;

2. the latch bolt transmission mechanism can be in barrier-free fit with the ground rod and the lock bolt, so that the problem that a key cannot be unlocked due to clamping stagnation of an internal structure is reduced;

3. the production cost is reduced, and the installation and maintenance difficulty is reduced.

Disclosure of Invention

The to-be-solved technical problem of the utility model is, not enough to prior art, slide in the arc spout through the shoulder pole shift fork, drive the shoulder pole and slide, and then drive the latch bolt shift fork and rotate, open the latch bolt. The oblique bolt transmission mechanism has simple, stable and efficient structure, can be in barrier-free cooperation with the auxiliary bolt, the ground rod and the main bolt assembly, saves labor for unlocking and is not blocked.

The utility model adopts the following technical scheme:

the oblique tongue transmission mechanism is characterized by further comprising an arc-shaped sliding chute, the oblique tongue shifting fork is rotatably connected with a handle shifting wheel through hole, one end of the oblique tongue shifting fork is abutted with the oblique tongue shifting plate, and the other end of the oblique tongue shifting fork is rotatably connected with the shoulder pole;

the carrying pole is fixedly provided with a carrying pole waist-shaped through hole and is connected to the lock body bottom shell in a sliding manner through the carrying pole shaft and the waist-shaped through hole;

the shoulder pole shifting fork with shoulder pole separability butt, the shoulder pole shifting fork slides on the arc spout through shoulder pole waist shape through-hole and shoulder pole shifting fork axle to stir the shoulder pole and make the shoulder pole slide, the shoulder pole slides and drives the latch bolt shifting fork and rotate, thereby makes the shifting block on the latch bolt shifting fork drive the latch bolt and withdraw.

As the preferred scheme of this application, still include the spout board, set firmly the arc spout on the spout board.

Preferably, the number of the sliding groove plates is 2, and the sliding groove plates are symmetrically and respectively fixed on the lock body bottom shell and the sealing cover.

Preferably, the arc degree of the arc chute is 160-180 degrees.

The application also provides a door lock with the oblique bolt transmission mechanism.

As the preferred scheme of this application lock, still include spring bolt thumb wheel and spring bolt subassembly, the spring bolt thumb wheel rotates to be connected on the shoulder pole declutch shift shaft, the spring bolt subassembly includes spring bolt fixed plate, toothed plate, spring bolt fixed plate and spring bolt rigid coupling, the toothed plate with the spring bolt fixed plate rotates to be connected, the spring bolt thumb wheel with the toothed plate meshing drives the motion of spring bolt fixed plate, opens or closed spring bolt.

The working principle is as follows:

the inclined tongue transmission mechanism comprises a lock body bottom shell, a shoulder pole shifting fork, a shoulder pole, an inclined tongue shifting fork, an inclined tongue assembly and an arc-shaped sliding groove, wherein the shoulder pole shifting fork slides on the arc-shaped sliding groove on the lock body bottom shell to a proper position, the shoulder pole shifting fork is abutted to the shoulder pole, the shoulder pole shifting fork continues to slide, the shoulder pole can be shifted to slide the shoulder pole, the shoulder pole slides to drive the inclined tongue shifting fork to rotate, and therefore a shifting block on the inclined tongue shifting fork drives an inclined tongue to retract;

the beneficial effects of the utility model are that, through the oblique tongue drive mechanism of extremely simple structure, opening of ingenious realization oblique tongue, this design lets lock body simple structure, and the operation is more stable, unblanks more laborsavingly, is difficult for appearing the card phenomenon of jumping the shelves of dying.

Drawings

FIG. 1 is a schematic view of a latch bolt transmission mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a shoulder pole fork according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of the shoulder pole of the embodiment of the present invention;

FIG. 4 is a schematic structural view of a latch bolt shifting fork according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a latch bolt assembly according to an embodiment of the present invention;

FIG. 6 is a schematic view of a door lock according to an embodiment of the present invention;

in the attached drawing, 1 lock body bottom shell, 2 shoulder pole shifting forks, 21 shifting fork waist-shaped through holes, 22 shifting teeth, 23 shoulder pole shifting fork shafts, 3 shoulder poles, 31 shoulder pole shifting edges, 32 shoulder pole waist-shaped through holes, 33 shoulder pole circular through holes, 34 shoulder pole shafts, 4 oblique tongue shifting forks, 41 shifting blocks, 42 oblique tongue shifting fork through holes, 43 handle shifting wheel through holes, 44 handle shifting wheels, 5 oblique tongue components, 51 oblique tongue shifting plates, 52 oblique tongues, 6 sliding groove plates, 61 arc-shaped sliding grooves, 71 locking tongues, 72 locking tongue fixing plates, 81 locking tongue shifting wheels and 82 gear plates.

Detailed Description

The following examples are given in connection with the accompanying drawings to further illustrate the embodiments of the present application. It should be noted that, in the present application, the embodiments and the features in the embodiments may be combined with each other without conflict, and the present invention is not limited to the description of the embodiments below.

In the description of the present invention, it is to be understood that the terms "center", "counterclockwise", "clockwise", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "bottom", "top", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1-5, an embodiment of the present invention provides a latch bolt transmission mechanism, which includes a lock body bottom case 1, a carrying pole fork 2, a carrying pole 3, a latch bolt fork 4, a latch bolt assembly 5 and an arc chute 61; the latch assembly includes a latch paddle 51 and a latch 52.

The lock body bottom shell 1 is fixedly connected with a chute plate 6 containing an arc chute 61, the latch bolt shifting fork 4 is rotatably connected with a handle shifting wheel 44 through a handle shifting wheel through hole 43, one end of the latch bolt shifting fork 4 is abutted with a latch bolt shifting plate 51, and the other end is rotatably connected with the carrying pole 3; the shoulder pole 3 is fixedly provided with a shoulder pole waist-shaped through hole 32, and the shoulder pole 3 is connected to the lock body bottom shell 1 in a sliding manner through a shoulder pole shaft 34 and the waist-shaped through hole 32; the shoulder pole shifting fork 2 is separably abutted with the shoulder pole 3, the shoulder pole shifting fork 2 slides on the arc-shaped sliding groove 61 through the shifting fork waist-shaped through hole 21 and the shoulder pole shifting fork shaft 23, so that the shifting teeth 22 shift the shoulder pole edge 31 to slide the shoulder pole 3, the shoulder pole 3 slides to drive the latch bolt shifting fork 4 to rotate, and the shifting block 41 on the latch bolt shifting fork 4 shifts the latch bolt shifting block 51 to retract the latch bolt 52;

the arc of the arc chute 61 can be set to 160-180 degrees, and as a preferable scheme of the embodiment, the arc of the arc chute 61 is 170 degrees.

This embodiment adopts 2 chute boards, and symmetry is fixed respectively on lock body drain pan and apron.

Example 2

The present embodiment provides a door lock (refer to fig. 6). Besides the oblique bolt transmission mechanism of the embodiment 1, the oblique bolt transmission mechanism also comprises a bolt thumb wheel 81 and a bolt component, wherein the bolt thumb wheel 81 is rotationally connected to the shoulder pole fork shaft 23; simultaneously this embodiment shoulder pole fork axle 23 contains 2, mutually supports with arc spout 61, shoulder pole waist shape through-hole 32 and lock tongue thumb wheel 81 on the shoulder pole shift fork 2. The lock tongue assembly comprises a lock tongue 71, a lock tongue fixing plate 72 and a gear plate 82, wherein the lock tongue fixing plate 72 is fixedly connected with the lock tongue 71, the gear plate 82 is rotatably connected with the lock tongue fixing plate 72, and a lock tongue thumb wheel 81 is meshed with the gear plate 82 to drive the lock tongue fixing plate 72 to move so as to open or close the lock tongue.

As a preferred embodiment, a top and bottom lever, a secondary bolt assembly, a safety bolt and the like can be further included.

In addition, this embodiment selects for use the key drive lock core that has the thumb wheel to stir the spring bolt thumb wheel, shoulder pole shift fork to unblank or lock, and in the practical application, also can select for use motor drive thumb wheel to realize unblanking or locking.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model discloses to the ordinary skilled person in technical field's the prerequisite that does not deviate from the utility model discloses under the design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (6)

1. A latch bolt transmission mechanism comprises a lock body bottom shell, a carrying pole shifting fork, a carrying pole, a latch bolt shifting fork and a latch bolt assembly, and is characterized by further comprising an arc-shaped sliding chute, wherein the latch bolt shifting fork is rotatably connected with a handle shifting wheel through hole, one end of the latch bolt shifting fork is abutted with a latch bolt shifting plate, and the other end of the latch bolt shifting fork is rotatably connected with the carrying pole; the shoulder pole is fixedly provided with a shoulder pole waist-shaped through hole and is connected to the bottom shell of the lock body in a sliding manner through the shoulder pole shaft and the waist-shaped through hole; the shoulder pole shifting fork with shoulder pole separability butt, the shoulder pole shifting fork slides on the arc spout through shoulder pole waist shape through-hole and shoulder pole shifting fork axle to stir the shoulder pole and make the shoulder pole slide, the shoulder pole slides and drives the latch bolt shifting fork and rotate, thereby makes the shifting block on the latch bolt shifting fork drive the latch bolt and withdraw.

2. The latch bolt transmission mechanism according to claim 1, further comprising a chute plate, wherein the chute plate is fixedly provided with an arc chute.

3. A latch bolt actuator according to claim 2, wherein the number of said runner plates is 2, and the runner plates are symmetrically fixed to the lock body base and cover respectively.

4. A latch bolt actuator according to claim 1, wherein the arc of the arcuate slot is 160-180 degrees.

5. A door lock comprising a latch bolt actuator according to any one of claims 1 to 4.

6. The door lock of claim 5, further comprising a lock tongue thumb wheel and a lock tongue assembly, wherein the lock tongue thumb wheel is rotatably connected to the shoulder pole fork shaft, the lock tongue assembly comprises a lock tongue fixing plate and a gear plate, the lock tongue fixing plate is fixedly connected with the lock tongue, the gear plate is rotatably connected with the lock tongue fixing plate, and the lock tongue thumb wheel is meshed with the gear plate to drive the lock tongue fixing plate to move so as to open or close the lock tongue.

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