CN216429296U

CN216429296U - Transmission mechanism and coded lock with same

Info

Publication number: CN216429296U
Application number: CN202122139799.0U
Authority: CN
Inventors: 韩文杰; 王壤
Original assignee: Ningbo Wangtong Locks Co Ltd
Current assignee: Ningbo Wangtong Locks Co Ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-05-03
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses a drive mechanism and have its trick lock, including casing and locking piece, be equipped with motor and drive assembly that is used for driving the locking piece and removes in the casing, drive assembly includes: the transmission pair is in matched transmission with the motor; the upper gear is in meshed transmission with the transmission pair; a lower gear, the upper gear being axially disposed with the lower gear; the rack is connected with the locking piece and meshed with the lower gear; the upper gear and the lower gear are axially sleeved to form a cavity, positioning members are arranged at two axial ends of the cavity, a flexible element used for linking the upper gear and the lower gear is clamped between the two positioning members, and the shell extrudes the upper gear and/or the lower gear so that the flexible element is kept in an extrusion state.

Description

Transmission mechanism and coded lock with same

Technical Field

The utility model relates to a trick lock technical field, concretely relates to drive mechanism and have its trick lock.

Background

At present, the trick lock on the market comes control circuit or chip work through password input, thereby control mechanical switch's closure, accomplish the electronic product of unblanking, the shutting task, be equipped with motor and mechanical drive mechanism in the casing that its constitutes, control stretching out and withdrawing of lock core with positive and negative commentaries on classics by opening of motor, a trick lock among the prior art, it controls through setting for the fixed time, the motor is by the inside power drive of casing, however, when the power electric quantity is abundant, the motor excessively rotates easily, and then lead to after the spring bolt reaches extreme position, the excessive action of drive mechanism leads to the card to die, influence the life-span of trick lock, and drive mechanism among the prior art adopts multistage gear direct drive usually, whole action speed reduction effect is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a not enough to prior art exists, the utility model aims to provide a drive mechanism and have its trick lock effectively increases trick lock drive mechanism's stability and life.

The above technical purpose of the present invention can be achieved by the following technical solutions: a transmission mechanism comprises a shell and a locking piece, wherein a motor and a transmission assembly for driving the locking piece to move are arranged in the shell, and the transmission assembly comprises: the transmission pair is in matched transmission with the motor;

the upper gear is in meshed transmission with the transmission pair;

a lower gear, the upper gear being axially disposed with the lower gear;

the rack is connected with the locking piece and meshed with the lower gear;

the upper gear and the lower gear are axially sleeved to form a cavity, positioning members are arranged at two axial ends of the cavity, a flexible element used for linking the upper gear and the lower gear is clamped between the two positioning members, and the shell extrudes the upper gear and/or the lower gear so that the flexible element is kept in an extrusion state.

Furthermore, an upper pressing part and a lower pressing part are arranged on the shell, the upper pressing part is correspondingly pressed on the outer ring of the upper gear, the lower pressing part is correspondingly pressed on the outer ring of the lower gear, and a gap is formed between the end faces of the upper gear and the lower gear through a flexible element.

Furthermore, the end part of the flexible element is provided with a corner end part, the positioning component comprises two arc-shaped blocks which are oppositely arranged, the corner end part is embedded between the two arc-shaped blocks, and the flexible element is sleeved outside the arc-shaped blocks.

Furthermore, the upper gear is arranged in a half-tooth mode, and the limit positions of the racks correspond to two end portions of the gear ring of the upper gear.

Further, the rack is provided with a convex part close to the locking part, the shell is provided with a guide channel arranged along the advancing direction of the locking part, and the convex part extends out of the guide channel.

Furthermore, a guide channel is arranged in the shell corresponding to the meshing position of the rack and the lower gear, the rack is contained in the guide channel to advance, a convex surface is arranged on the guide channel, and the convex surface is in sliding contact with the rack.

Furthermore, vertical ribs and transverse ribs arranged along the length direction of the rack are arranged on the outer side of the rack, and the vertical ribs are connected with the transverse ribs.

The utility model provides a coded lock, includes foretell drive mechanism, still includes the lock body, locates panel and lock core on the lock body, be equipped with the cavity that supplies the casing holding in the lock body, be equipped with the installation component on the cavity, just be equipped with a locked groove in the lock core, the locking piece stretches into the locked groove to the locking lock core.

Further, the mounting component comprises a plurality of limiting convex parts and positioning convex columns, the limiting convex parts are arranged on the periphery of the shell, convex strips matched with the shell in an abutting mode are arranged on the limiting convex parts on at least one side, and positioning holes matched with the positioning convex columns are formed in the shell.

Further, the casing includes epitheca and inferior valve, be equipped with the catching groove position on the epitheca, be equipped with the knot piece position on the inferior valve, the catching groove position offsets the lock joint with the knot piece position. The lock core is provided with a rotating part, the rotating part is provided with an inserting part for inserting a key, a cover plate is arranged at the inserting part and is buckled with the rotating part, and the connecting part of the cover plate and the rotating part is arranged in the rotating part.

Compared with the prior art, the utility model has the advantages of it is following and beneficial effect: 1. the flexible element compensates the relative offset of the two axes of the upper gear and the lower gear, and simultaneously, when the upper gear and the lower gear are relatively pressed, the flexible element respectively applies axial pressure to the upper gear and the lower gear, so that the position stability and the transmission stability between the upper gear and the lower gear are ensured;

2. the upper gear meshed with the transmission pair is half-toothed, so that under the condition that the power supply is abundant, the transmission pair rotates to the position of the upper gear without teeth along with the motor in an excessive manner, and is disengaged from the locking piece, the rack is prevented from driving the locking piece to move excessively, and the service life of the transmission mechanism is ensured.

3. The motor and the transmission assembly are arranged in the shell, so that the transmission mechanism is modularized, and is convenient to install and detach in the lock body independently.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the housing of the present invention;

fig. 3 is a schematic structural view of the lower casing of the present invention;

fig. 4 is a schematic structural view of the rack of the present invention;

fig. 5 is an exploded view of the upper and lower gears of the present invention;

fig. 6 is another exploded view of the upper and lower gears of the present invention;

fig. 7 is a schematic cross-sectional view of the upper and lower gears of the present invention;

fig. 8 is a schematic structural view of the combination lock of the present invention;

fig. 9 is a schematic structural diagram of the lock cylinder of the present invention;

fig. 10 is a schematic view of the fitting of the housing on the cavity according to the present invention;

in the figure: 1. a housing; 1.1, a pressing part; 1.2, guiding a channel; 1.3, convex surface; 1.4, an upper shell; 1.5, a lower shell; 1.6, a buckle groove part; 1.7, buckling block parts; 1.8, a guide channel; 1.9, a pressing part; 2. a locking member; 3. a motor; 4. a lower gear; 5. an upper gear; 6. a rack; 6.1, convex parts; 6.2, vertical ribs; 6.3, transverse ribs; 7. a transmission pair; 7.1, a worm; 7.2, a transmission gear; 8. a chamber; 9. a positioning member; 10. a flexible element; 10.1, corner end; 11. a gap; 12. a lock body; 12.1, a limit convex part; 12.2, positioning a convex column; 12.3, convex strips; 13. a panel; 14. a lock cylinder; 14.1, locking grooves; 15. a rotating part; 16. a cover plate; 17. a plug-in part; 18. a pin member;

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that, although the terms upper, middle, lower, top, end, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another for ease of understanding, and are not used to define any direction or order of limitation.

As shown in fig. 1-10, a transmission mechanism includes a housing 1 and a locking member 2, a motor 3 and a transmission assembly are disposed in the housing 1 for driving the locking member 2 to move, and the transmission assembly includes: the transmission pair 7 is in matched transmission with the motor 3;

the upper gear 5 is in meshed transmission with the transmission pair 7;

a lower gear 4, the upper gear 5 being arranged axially with the lower gear 4;

a rack 6, wherein the rack 6 is connected with the locking piece 2 and meshed with the lower gear 4;

the upper gear 5 and the lower gear 4 are axially sleeved to form a cavity 8, two axial ends of the cavity 8 are provided with positioning members 9, a flexible element 10 for linking the upper gear 5 and the lower gear 4 is clamped between the two positioning members 9, the flexible element 10 serves as a coupler and is transmitted between the upper gear 5 and the lower gear 4, and the shell 1 extrudes the upper gear 5 and the lower gear 4 to enable the flexible element 10 to keep an extrusion state, so that the axial pressing force of the upper gear 5 and the lower gear 4 is provided, and a speed reduction effect on transmission is achieved.

In the present embodiment, the transmission pair 7 refers to a worm 7.1 disposed on the output shaft of the motor 3, and a transmission gear 7.2 engaged with the worm 7.1, and the transmission gear 7.2 is engaged with the upper gear 5.

In other embodiments, as an improvement on the transmission of the upper gear 5 and the lower gear 4, an upper pressing portion 1.1 and a lower pressing portion 1.9 are provided on the housing 1, the upper pressing portion 1.1 is correspondingly pressed at an outer ring of the upper gear 5, the lower pressing portion 1.9 is correspondingly pressed at an outer ring of the lower gear 4, a gap 11 is formed between end surfaces of the upper gear 5 and the lower gear 4 through a flexible element 10, the radial offset of the upper gear 5 and the lower gear 4 is eliminated through the upper pressing portion 1.1 and the lower pressing portion 1.9, and the upper gear 5 and the lower gear 4 are axially limited, so as to ensure position stability, and meanwhile, the gap 11 between the upper gear 5 and the lower gear 4 is provided for the flexible element 10 to extend and retract in the axial direction, so as to provide a speed reduction effect on the transmission of the upper gear 5 and the lower gear 4.

As an example of the installation manner of the flexible element 10, a positioning member 9 is arranged at the end of the chamber 8 of the upper gear 5, a positioning member 9 is arranged at the end of the chamber 8 of the lower gear 4, the end of the flexible element 10 is bent to be provided with a corner end 10.1, the positioning member 9 comprises two arc blocks arranged oppositely, the corner end 10.1 is embedded between the two arc blocks to transmit torsion, the flexible element 10 is sleeved outside the arc blocks, the outer contour of the arc blocks is matched with the flexible element 10, so that the arc blocks simultaneously provide positioning for the flexible element 10, and in addition, the flexible element 10 is always in a compressed state, thereby further reducing the distortion of the flexible element 10 in the chamber 8.

Alternatively, the flexible element 10 may be a torsion spring.

In other embodiments, the upper gear 5 is half-toothed, the limit positions of the rack 6 correspond to the two end portions of the gear ring of the upper gear 5, and the upper gear 5 meshed with the transmission pair 7 is half-toothed, so that the transmission pair 7 excessively rotates to the position without teeth of the upper gear 5 along with the motor 3 under the condition of abundant power supply, so that the transmission pair is disengaged, the rack 6 is prevented from driving the locking piece 2 to excessively move, and the service life of the transmission mechanism is ensured.

In other embodiments, in order to increase the smoothness and stability of the action of the locking member 2, the rack 6 is disposed in an L shape, one side of the rack is connected to the locking member 2, the other side of the rack is engaged with the lower gear 4, a protrusion 6.1 is disposed on the rack 6 and located on the upper portion of one side of the locking member 2, a guide channel 1.8 is disposed on the housing 1 and along the traveling direction of the locking member 2, and the protrusion 6.1 extends into the guide channel 1.8, so as to guide the side of the rack 6 corresponding to the locking member 2.

Specifically, the meshing position that corresponds rack 6 and lower gear 4 in the casing 1 is equipped with direction passageway 1.2, 6 holding of rack is marchd in direction passageway 1.2 to another side to rack 6 leads, just be equipped with convex surface 1.3 on the direction passageway 1.2, convex surface 1.3 and 6 sliding contact of rack reduce the friction of terminal surface under the rack 6 when providing the direction.

Specifically, the rack 6 outside is equipped with vertical rib 6.2 to and the horizontal rib 6.3 that sets up along 6 length direction of rack, vertical rib 6.2 links to each other with horizontal rib 6.3, thereby increases the structural strength of rack 6, makes the rack 6 action more stable.

The utility model provides a coded lock, includes foretell drive mechanism, still includes lock body 12, locates panel 13 and lock core 14 on the lock body 12, be equipped with the cavity that supplies the 1 holding of casing in the lock body 12, be equipped with the installation component on the cavity, casing 1 fixes in the cavity through the installation component, just be equipped with a locked groove 14.1 in the lock core 14, locking piece 2 stretches into locked groove 14.1 to locking lock core 14.

As a further explanation for the installation of the housing 1, the installation member includes a plurality of limiting protrusions 12.1 and positioning bosses 12.2, the limiting protrusions 12.1 are disposed on the periphery of the housing 1, and at least one side of the limiting protrusions 12.1 is provided with a protruding strip 12.3 for abutting-fitting with the housing 1 to limit the housing 1, and the housing 1 is provided with a positioning hole matching with the positioning boss 12.2.

Specifically, casing 1 includes epitheca 1.4 and inferior valve 1.5, be equipped with catching groove position 1.6 on the epitheca 1.4, be equipped with on inferior valve 1.5 and detain piece position 1.7, catching groove position 1.6 offsets the lock joint with detaining piece position 1.7.

The lock is characterized in that the lock cylinder 14 is provided with a rotating part 15, the rotating part 15 is provided with an inserting part 17 for inserting a key, the inserting part 17 is provided with a cover plate 16, the cover plate 16 is connected to the rotating part 15, the connecting part of the cover plate 16 and the rotating part 15 is arranged in the rotating part 15, the key is used as an emergency key, the cover plate 16 is closed under a normal state, the connecting part of the cover plate 16 and the rotating part 15 needs to be jacked open through a pin 18, and after the cover plate 16 is taken down, the key can be inserted to open the coded lock.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a transmission mechanism, includes casing (1) and locking piece (2), be equipped with motor (3) and drive assembly that are used for driving locking piece (2) to remove in casing (1), its characterized in that, drive assembly includes: the transmission pair (7) is in matched transmission with the motor (3);

the upper gear (5) is in meshed transmission with the transmission pair (7);

a lower gear (4), the upper gear (5) being axially arranged with the lower gear (4);

the rack (6) is connected with the locking piece (2) and meshed with the lower gear (4);

go up gear (5) and lower gear (4) axial bell and spigot joint and constitute cavity (8), the axial both ends of cavity (8) are equipped with locating component (9), two the joint is equipped with flexible component (10) that are used for linkage upper gear (5) and lower gear (4) between locating component (9), just casing (1) extrudees upper gear (5) and/or lower gear (4) to make flexible component (10) keep the extrusion state.

2. A transmission mechanism as claimed in claim 1, wherein: the gear transmission mechanism is characterized in that an upper pressing portion (1.1) and a lower pressing portion (1.9) are arranged on the shell (1), the upper pressing portion (1.1) is correspondingly pressed on the outer ring of the upper gear (5), the lower pressing portion (1.9) is correspondingly pressed on the outer ring of the lower gear (4), and a gap (11) is formed between the end faces of the upper gear (5) and the lower gear (4) through a flexible element (10).

3. A transmission mechanism as claimed in claim 1, wherein: the end part of the flexible element (10) is provided with a corner end part (10.1), the positioning component (9) comprises two arc-shaped blocks which are oppositely arranged, the corner end part (10.1) is embedded between the two arc-shaped blocks, and the flexible element (10) is sleeved outside the arc-shaped blocks.

4. A transmission mechanism as claimed in claim 1, wherein: the upper gear (5) is arranged in a half-tooth mode, and the limit positions of the racks (6) correspond to two end portions of the gear ring of the upper gear (5).

5. A transmission mechanism as claimed in claim 1, wherein: rack (6) are close to locking piece (2) are equipped with convex part (6.1), be equipped with guide channel (1.8) that set up along locking piece (2) advancing direction on casing (1), convex part (6.1) stretch out in guide channel (1.8).

6. A transmission mechanism as claimed in claim 1, wherein: the gear rack is characterized in that a guide channel (1.2) is arranged in the shell (1) corresponding to the meshing position of the rack (6) and the lower gear (4), the rack (6) is accommodated in the guide channel (1.2) to advance, a convex surface (1.3) is arranged on the guide channel (1.2), and the convex surface (1.3) is in sliding contact with the rack (6).

7. A transmission mechanism as claimed in claim 1, wherein: vertical ribs (6.2) and transverse ribs (6.3) arranged along the length direction of the rack (6) are arranged on the outer side of the rack (6), and the vertical ribs (6.2) are connected with the transverse ribs (6.3).

8. A combination lock comprising a transmission mechanism as claimed in any one of claims 1 to 7, wherein: still include lock body (12), locate panel (13) and lock core (14) on lock body (12), be equipped with the cavity that supplies casing (1) holding in lock body (12), be equipped with the installation component on the cavity, just be equipped with a locked groove (14.1) in lock core (14), locking piece (2) stretch into locked groove (14.1) to locking lock core (14).

9. A combination lock according to claim 8, wherein: the mounting member comprises a plurality of limiting convex parts (12.1) and positioning convex columns (12.2), the limiting convex parts (12.1) are arranged on the periphery of the shell (1), convex strips (12.3) which are matched with the shell (1) in an abutting mode are arranged on the limiting convex parts (12.1) on at least one side, and positioning holes matched with the positioning convex columns (12.2) are formed in the shell (1).

10. A combination lock according to claim 8, wherein: the shell (1) comprises an upper shell (1.4) and a lower shell (1.5), a buckling groove part (1.6) is arranged on the upper shell (1.4), a buckling block part (1.7) is arranged on the lower shell (1.5), and the buckling groove part (1.6) is abutted and buckled with the buckling block part (1.7);

the lock is characterized in that a rotating part (15) is arranged on the lock cylinder (14), an inserting part (17) for inserting a key is arranged on the rotating part (15), a cover plate (16) is arranged at the inserting part (17), the cover plate (16) is buckled with the rotating part (15), and the connecting part of the cover plate (16) and the rotating part (15) is arranged in the rotating part (15).