CN115653410A

CN115653410A - Mechanical lock with simple structure and stable operation

Info

Publication number: CN115653410A
Application number: CN202210871885.7A
Authority: CN
Inventors: 柳小勇; 王程
Original assignee: Zhongheng Group Co ltd
Current assignee: Zhongheng Group Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2023-01-31

Abstract

The invention discloses a mechanical lock with simple structure and stable operation, which belongs to the technical field of mechanical locks and comprises a bottom shell, a lock tongue component, a latch bolt component and a shifting component, wherein the lock tongue component, the latch bolt component and the shifting component are respectively arranged in the bottom shell of a lock body and are covered by an upper cover plate; when the shoulder pole shifting fork slides in the sliding groove, the shifting teeth drive the shoulder pole to slide, so as to drive the inclined tongue shifting fork and open the inclined tongue; when the bolt thumb wheel slides in the sliding groove, the bolt thumb wheel is meshed with the gear plate to drive the bolt fixing plate to move, so that the bolt is opened or closed; when the auxiliary bolt is included, the bolt fixing plate drives the ground rod, so that the auxiliary bolt is driven to open or close. The mechanical lock is simple in structure, labor-saving in unlocking, stable in operation, difficult to jump and slide and high in commercial value.

Description

Mechanical lock with simple structure and stable operation

Technical Field

The invention relates to the technical field of mechanical locks, in particular to a mechanical lock which is simple in structure and stable in operation.

Background

Most of the existing door locks on the market are mechanical locks, are first-gear or second-gear lock bodies, have complex internal structures, and are usually realized by matching a plurality of gears with other multiple parts; the complicated structure also leads the lock tongue and the latch bolt to be only synchronously recycled, thus easily causing the excessive unlocking force and the breakage of the key in the unlocking process; (ii) a Especially, in the using process, when the lock tongue and the latch bolt are switched, a trip stop and a slide stop are easy to occur, so that the door lock cannot be opened. The lock has the advantages that the lock body is also partially provided with a second-gear lock body in the market, the structure of the lock body is more complex, the lock body is provided with a plurality of clamping points in the using process, once the lock tongue stops at the clamping points and is clamped, the lock cylinder cannot be opened and can only be opened by force, and the lockset is damaged. In addition, the lock body can be unlocked only by rotating the lock cylinder by 540 degrees or 900 degrees when the mechanical lock is unlocked; if the lock body with the structure is used in an electronic lock, the door opening time is greatly wasted and the electric energy is wasted.

To a great deal of not enough of current mechanical lock in the market, kowtow is waited to solve and is developed a mechanical lock:

1. the lock has simple, stable and efficient structure;

2. the use of the clutch structure can optimize parts in the lockset, the recovery of the lock tongue and the latch bolt can be independently controlled, and the occurrence that a key cannot be unlocked due to the clamping stagnation of an internal structure is reduced;

3. the rotation degree and the torsion of the lock cylinder are reduced, and the key is prevented from being broken.

Disclosure of Invention

Aiming at the defects in the prior art, the invention realizes the purposes of opening the latch bolt, opening and closing the latch bolt and the auxiliary latch bolt by matching the poking assembly with the latch bolt assembly, the auxiliary latch bolt assembly and the latch bolt assembly, so that the lock body has the advantages of simple structure, more stable operation, more labor-saving unlocking and difficult occurrence of the phenomenon of blocking and jumping.

The invention adopts the following technical scheme:

the anti-jamming and anti-jumping mechanical lock comprises a bottom shell, a lock tongue component, a latch bolt component and a poking component, wherein the lock tongue component, the latch bolt component and the poking component are respectively installed in the bottom shell of a lock body and are sealed by an upper cover plate;

the oblique bolt component comprises a carrying pole and an oblique bolt shifting fork, wherein the carrying pole is connected in the bottom shell of the lock body in a sliding mode and is movably abutted to the shifting teeth; the shoulder pole is rotationally connected with the latch bolt shifting fork, and when the shoulder pole shifting fork slides in the sliding groove, the shifting teeth drive the shoulder pole to slide, so that the latch bolt shifting fork is driven to open the latch bolt;

the spring bolt subassembly includes spring bolt fixed plate, toothed plate, spring bolt fixed plate and spring bolt rigid coupling, toothed plate with the spring bolt fixed plate rotates to be connected, when the spring bolt thumb wheel slides in the spout, sector gear with the toothed plate meshing drives the motion of spring bolt fixed plate, opens or closed spring bolt.

As the preferable scheme of the application, the tongue comprises an auxiliary tongue assembly, wherein the auxiliary tongue assembly comprises an auxiliary tongue, an auxiliary tongue fixing plate, an auxiliary tongue shifting fork and a top and bottom rod, the auxiliary tongue is fixedly connected with the auxiliary tongue fixing plate, a fixing plate waist-shaped through hole and a fixing plate fixing shaft are fixedly arranged on the auxiliary tongue fixing plate, and a shifting fork circular through hole, a shifting fork waist-shaped through hole and a U-shaped notch are fixedly arranged on the auxiliary tongue shifting fork; the auxiliary tongue fixing plate is connected to the limiting shaft of the lock body bottom shell in a sliding mode, the auxiliary tongue shifting fork is connected to the limiting shaft of the lock body bottom shell in a sliding mode through a shifting fork waist-shaped through hole, the shifting fork waist-shaped through hole is connected with the fixing plate fixing shaft in a sliding mode, and the U-shaped notch is connected to the ground rod fixing shaft of the ground lever in a movable mode.

Preferably, the radian of the rotation of the auxiliary tongue shifting fork is 50-60 degrees.

Preferably, when the auxiliary tongue shifting fork rotates, the displacement of the top and bottom rod fixing shaft in the U-shaped notch is not more than 5mm.

As the preferred scheme of the application, the lock tongue thumb wheel is fixedly provided with at least 2 thumb wheel shaft holes, and the shoulder pole shifting fork comprises a waist-shaped through hole; the shoulder pole shifting fork is limited between the chute plate and the lock tongue shifting wheel through the shifting wheel shaft, and the shifting wheel shaft can freely slide on the chute and in the waist-shaped through hole.

As a preferred scheme of the application, one end of the gear plate is movably connected with the lock body bottom shell through an elastic torsion spring, and the elastic torsion spring can assist the lock tongue to pop out and open the lock body in the process that the lock core shifting fork rotates the lock tongue to open; and in the final stage that the lock cylinder shifting fork rotates to close the lock tongue, the torsion spring can assist the lock tongue to automatically retract and close.

As the preferred scheme of this application, the relative both sides of gear plate all contain the teeth of a cogwheel, one side and the meshing of spring bolt thumb wheel, and the opposite side is connected with the rotation of pivot with the tooth meshing on stabilizing the tooth piece, stabilizes the tooth piece, can increase gear plate pivoted stability like this.

Preferably, the radian among 2 thumb wheel shaft holes of the lock tongue thumb wheel is smaller than that of the waist-shaped through hole.

As the preferred scheme of this application, the radian of shoulder pole shift fork is greater than the radian of spring bolt thumb wheel.

As a preferable scheme of the application, the radian of the sliding groove is 160-180 degrees.

As the preferred scheme of this application, still include the lock core, lock core shift fork on the lock core and the activity butt of spring bolt thumb wheel and shoulder pole shift fork.

As the preferred scheme of this application, still include the safety lock tongue.

The working principle is as follows:

the lock cylinder shifting fork rotates anticlockwise, the lock tongue shifting wheel and the carrying pole shifting fork are shifted to rotate anticlockwise, the lock tongue fixing plate is driven to move through meshing of the lock tongue shifting wheel and the gear of the gear plate, and the lock tongue extends out and is locked; in the opening process, the elastic torsion spring can assist the movement of the lock tongue fixing plate and the lock tongue, so that the unlocking is labor-saving. The lock core shifting fork rotates clockwise, stirs spring bolt thumb wheel and shoulder pole shift fork anticlockwise rotation, and the teeth of a cogwheel meshing through spring bolt thumb wheel and toothed disc drives the motion of spring bolt fixed plate, and the spring bolt is withdrawed.

In the unlocking process, due to the action of the elastic torsion spring, when the main lock tongue is opened to two thirds, the lock tongue can be automatically recovered; when the main bolt is opened to three quarters, the lock core shifting fork is continuously rotated, and the latch bolt is synchronously opened.

The invention has the advantages that the toggle assembly is matched with the spring bolt assembly and the latch bolt assembly, the latch bolt opening and closing are skillfully realized, and meanwhile, the design ensures that the lock body has simple structure, more stable operation and more labor-saving unlocking, is not easy to cause the phenomena of locking and gear jumping, and has very great commercial value.

Drawings

FIG. 1 is a schematic structural view of a latch state of embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of a chute plate according to an embodiment of the invention;

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

fig. 4 is a schematic structural diagram of a latch bolt thumb wheel according to an embodiment of the invention;

FIG. 5 is a schematic view of a gear plate according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a stabilizing web according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a wave wheel shaft according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of the latch state structure of embodiment 2 of the present invention

FIG. 9 is a schematic structural view of an auxiliary tongue shift fork according to an embodiment of the invention

In the drawings, 1, a lock cylinder shifting fork, 21, a sliding groove plate, 211, a sliding groove, 212, a fixing hole, 22, a carrying pole shifting fork, 221, a kidney-shaped through hole, 222, shifting teeth, 23 bolt shifting wheels, 231, sector teeth, 232, a shifting wheel shaft hole, 24, a shifting wheel shaft, 31, a bolt, 32, a bolt fixing plate, 33, a gear plate, 331, plate teeth, 332, a torsion spring shaft, 333, stabilizing teeth, 334, a fixing plate hole, 335, a rotating shaft hole, 34 elastic torsion springs, 35, stabilizing tooth sheets, 351, gear teeth, 41, a latch bolt, 42, a carrying pole, 43, a latch bolt shifting fork, 5, a rotating shaft, 6, a free lever, 7, a safety bolt, 8, a secondary bolt, 81, a secondary shifting fork fixing plate, 82, a secondary bolt, 9, a bottom shell lock body

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 the embodiments and features in the embodiments in the present application 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", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Example 1

As shown in fig. 1-7, an embodiment of the present invention provides an anti-seize and anti-skip mechanical lock, which includes a bottom case, a bolt assembly, a latch bolt assembly, an auxiliary bolt assembly, and a toggle assembly, where the bolt assembly, the latch bolt assembly, the auxiliary bolt assembly, and the toggle assembly are respectively installed in the bottom case 9 of the lock body and are covered by an upper cover plate, the toggle assembly includes a chute plate 21, a shoulder pole shifting fork 22, and a bolt shifting wheel 23, the chute plate 21 is fixed in the bottom case 9 of the lock body through a fixing hole 212, and a chute 211 is fixedly arranged on the chute plate.

In this embodiment, the lock tongue shifting wheel 23 is fixedly provided with 2 shifting wheel shaft holes 232, and the shoulder pole shifting fork 22 comprises a kidney-shaped through hole 221; the shoulder pole shifting fork 22 is limited between the chute plate 21 and the lock tongue shifting wheel 23 through the shifting wheel shaft 24, and the shifting wheel shaft 24 can freely slide on the chute 211 and in the waist-shaped through hole 221.

The sliding chute 221, the shoulder pole shifting fork 22 and the lock tongue shifting wheel 23 are all arc-shaped, shifting teeth 222 are fixedly arranged on the outer arc of the shoulder pole shifting fork 22, and the lock tongue shifting wheel 23 is a sector gear with teeth on the outer arc; the radian of the sliding groove 221 can be 160-180 degrees, in this embodiment, the radian of the sliding groove 221 is 170 degrees, the radian of the shoulder pole shift fork 22 is 125 degrees, and the radian of the lock bolt shift wheel 23 is 95 degrees.

The oblique bolt component comprises a carrying pole 42 and an oblique bolt shifting fork 43, wherein the carrying pole 42 is connected in the lock body bottom shell 9 in a sliding way and is movably abutted with the shifting teeth 222; the carrying pole 42 is rotationally connected with the latch fork 43, and when the carrying pole fork 22 slides in the sliding groove 211, the shifting tooth 222 drives the carrying pole 42 to slide, so as to drive the latch fork 43 and open the latch 41;

the bolt subassembly includes bolt fixed plate 32, gear plate 33, and bolt fixed plate 32 and bolt 31 rigid coupling, gear plate 33 rotate through the pivot with lock body drain pan 9 through rotating shaft hole 335 and be connected, and gear plate 33 rotates through fixed plate hole 334 and bolt fixed plate 32 to be connected, still is equipped with the torsional spring axle 332 of being connected with elasticity torsional spring 34 on the gear plate 33. When the latch bolt thumb wheel 23 slides in the slide slot 211, the sector teeth 231 of the sector gear are engaged with the plate teeth 331 on the gear plate 33, so as to drive the latch bolt fixing plate 32 to move, and open or close the latch bolt 31.

In the embodiment, one end of a gear plate 33 is movably connected with a lock body bottom shell 9 through an elastic torsion spring 34, and the elastic torsion spring 34 can assist the bolt 31 to pop out and open in the process of rotating the bolt 31 to open by the lock cylinder shifting fork 1; when the lock cylinder shifting fork 1 rotates to close nearly two thirds of the lock tongue 31, the elastic torsion spring 34 can assist the lock tongue 31 to automatically retract and close. In the embodiment, the radian (125 degrees) of the shoulder pole shifting fork 22 is greater than the radian (95 degrees) of the locking bolt shifting wheel 23, so that the locking bolt 31 can be automatically and completely retracted under the action of the elastic torsion spring 34 when the locking bolt 31 is retracted to approximately three quarters, and at the moment, if the lock cylinder shifting fork 1 is continuously rotated, the shoulder pole 42 can be shifted, and the shoulder pole 42 drives the latch bolt shifting fork 43 to open the latch bolt 41.

In order to make the gear plate 33 more stable during rotation, the present embodiment further includes a stabilizing tooth 35. Gear plate 33 has both sides all to contain the teeth of a cogwheel, is board tooth 331 and stable tooth 333 respectively, and wherein the fan-shaped tooth 231 meshing on board tooth 331 and the spring bolt thumb wheel 23 stabilizes tooth 333 and stabilizes the meshing of the teeth of a cogwheel 351 on tooth piece 35, stabilizes tooth piece 35 and is connected with pivot 5 rotation, can increase gear plate 33 pivoted stability like this.

This embodiment still includes safe spring bolt 7 and 2 world poles 6, world pole 6 difference sliding connection has set firmly the slant spout on the world pole 6 in lock body drain pan 9 and upper cover plate, through slant spout world pole and spring bolt fixed plate sliding connection, realizes opening or closing in step with spring bolt 31.

Example 2

The difference between this embodiment and embodiment 1 is that still add the vice spring bolt (refer to fig. 8-9), through the cooperation of vice spring bolt slant spout and spring bolt fixed plate, realize opening or closing with the spring bolt is synchronous, specifically is:

the auxiliary tongue assembly comprises an auxiliary tongue 8, an auxiliary tongue fixing plate 81, an auxiliary tongue shifting fork 82 and a ground rod 6, wherein the auxiliary tongue 8 is fixedly connected with the auxiliary tongue fixing plate 81, a waist-shaped through hole of the auxiliary tongue fixing plate and a fixing plate fixing shaft are fixedly arranged on the auxiliary tongue fixing plate 81, and a circular through hole, a waist-shaped through hole and a U-shaped notch of the shifting fork are fixedly arranged on the auxiliary tongue shifting fork 82; the auxiliary tongue fixing plate 81 is connected to a limiting shaft of the lock body bottom shell in a sliding mode, the auxiliary tongue shifting fork is connected to the limiting shaft of the lock body bottom shell in a sliding mode through a shifting fork waist-shaped through hole, the shifting fork waist-shaped through hole is connected with the fixing plate fixing shaft in a sliding mode, and the U-shaped notch is movably connected to a top and bottom rod fixing shaft of the top and bottom lever 6. The top and bottom rod 6 is provided with a horizontal waist-shaped through hole and an oblique waist-shaped through hole, the oblique waist-shaped through hole is in sliding connection with a fixed shaft matched with the lock tongue fixing plate, and the horizontal waist-shaped through hole is in sliding connection with a fixed shaft on the lock body bottom shell and the sealing cover. When the lock tongue is opened or closed, the inclined waist-shaped through hole pushes the ground rod to move horizontally (extend/retract), the ground rod can stir the auxiliary tongue shifting forks on two sides of the U-shaped notch to rotate, and the auxiliary tongue is pushed to extend or retract through the auxiliary tongue fixing plate waist-shaped through hole and the shifting fork waist-shaped through hole.

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

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. A mechanical lock with simple structure and stable operation comprises a bottom shell, a spring bolt component, a latch bolt component and a stirring component, wherein the spring bolt component, the latch bolt component and the stirring component are respectively arranged in the bottom shell of a lock body and are sealed by an upper cover plate;

the spring bolt subassembly includes spring bolt, 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, when the spring bolt thumb wheel slides in the spout, sector gear with the toothed plate meshing drives the motion of spring bolt fixed plate, opens or closed spring bolt.

2. The mechanical lock of claim 1, further comprising a secondary bolt assembly, wherein the secondary bolt assembly comprises a secondary bolt, a secondary bolt fixing plate, a secondary bolt shifting fork and a top and bottom rod, the secondary bolt is fixedly connected with the secondary bolt fixing plate, a fixing plate waist-shaped through hole and a fixing plate fixing shaft are fixedly arranged on the secondary bolt fixing plate, and a shifting fork circular through hole, a shifting fork waist-shaped through hole and a U-shaped notch are fixedly arranged on the secondary bolt shifting fork; the auxiliary tongue fixing plate is connected to the limiting shaft of the lock body bottom shell in a sliding mode, the auxiliary tongue shifting fork is connected to the limiting shaft of the lock body bottom shell in a sliding mode through a shifting fork waist-shaped through hole, the shifting fork waist-shaped through hole is connected with the fixing plate fixing shaft in a sliding mode, and the U-shaped notch is movably connected to the ground rod fixing shaft of the ground lever.

3. The mechanical lock of claim 2, wherein the arc of rotation of the auxiliary tongue fork is 50-60 degrees.

4. The mechanical lock of claim 2, wherein the shift of the fixed shaft of the top and bottom lever in the U-shaped notch is not more than 5mm when the auxiliary bolt fork rotates.

5. The mechanical lock with simple structure and stable operation as claimed in claim 1, wherein the bolt shifting wheel is fixedly provided with at least 2 shifting wheel shaft holes, and the shoulder pole shifting fork is provided with a kidney-shaped through hole; the shoulder pole shifting fork is limited between the sliding groove plate and the lock tongue shifting wheel through the shifting wheel shaft, and the shifting wheel shaft can freely slide on the sliding groove and in the waist-shaped through hole.

6. The mechanical lock of claim 5, wherein the radian between the shaft holes of the 2 deadbolt thumb wheels is less than the radian of the waist-shaped through hole.

7. The mechanical lock of claim 1, wherein one end of the gear plate is movably connected to the bottom case of the lock body through an elastic torsion spring.

8. The mechanical lock of claim 1, wherein the gear plate has gear teeth on opposite sides, one side of the gear plate is engaged with the latch thumb wheel, the other side of the gear plate is engaged with the gear teeth on the stabilizing blade, and the stabilizing blade is rotatably connected to the shaft.

9. The mechanical lock of claim 1, wherein the arc of the shoulder pole fork is greater than the arc of the locking dog wheel.

10. A mechanically locking device of claim 1 wherein said slot is formed in an arc of 160 to 180 degrees.

11. The mechanical lock of claim 1, further comprising a lock cylinder, wherein a lock cylinder fork on the lock cylinder is movably abutted to the lock tongue wheel and the shoulder pole fork.

12. A mechanically locking mechanism of simple construction and stable operation as claimed in any one of claims 1 to 11 further including a security bolt.