CN218912531U

CN218912531U - Novel overvoltage protection mechanism for mechanical coded lock handle

Info

Publication number: CN218912531U
Application number: CN202223448290.5U
Authority: CN
Inventors: 陈瑛; 陈泽鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-04-25
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a novel overvoltage protection mechanism for a mechanical coded lock handle, which comprises a lock shell, a base, a pushing piece, a latch transmission piece, a coded key assembly and a handle transmission piece, wherein the handle transmission piece sequentially passes through a first transmission piece and a second transmission piece to be linked with the latch transmission piece, a plurality of containing holes are formed in the end part of the handle transmission piece, the containing holes deviate from the central axis of the handle transmission piece, the central axis of the containing holes is parallel to the central axis of the handle transmission piece, clamping holes which can be opposite to the containing holes one by one are formed in the end part of the first transmission piece, a marble assembly is arranged in the containing holes, the marble assembly comprises a marble and a jacking spring, and after an error code is input, when a user rotates the handle in an overvoltage mode, the marble is separated from the clamping holes, so that the handle transmission piece idles relative to the first transmission piece, the internal structure of a lockset cannot be damaged due to strong overvoltage.

Description

Novel overvoltage protection mechanism for mechanical coded lock handle

[ field of technology ]

The utility model relates to the technical field of locks, in particular to a novel overvoltage protection mechanism for a mechanical coded lock handle.

[ background Art ]

At present, the mechanical coded lock used by people is provided with the coded mechanism, when unlocking, the user needs to input the correct coded mode to unlock, and when a plurality of incorrect coded modes are input, the mechanical parts in the lock are easily damaged by strongly rotating the handle, so that the mechanical protection of the lock is poorer, and the utility model is based on the defects.

[ utility model ]

In order to solve the problems, the utility model provides a novel overvoltage protection mechanism for a mechanical coded lock handle.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the utility model provides a novel overvoltage protection mechanism for mechanical coded lock handle, includes the lock shell, be provided with the base in the lock shell, slide on the base and be provided with the impeller, rotate on the base and be provided with the latch transmission spare that is used for lock latch linkage, be provided with on the base just can make when inputting correct password latch transmission spare drive impeller for the gliding cipher button subassembly of base, the lock shell rotates and is provided with the handle transmission spare that is used for with the handle linkage, the handle transmission spare loops through first transmission spare, second transmission spare with latch transmission spare linkage, a plurality of accommodation holes have been seted up to the tip of handle transmission spare, the accommodation hole skew the central axis of handle transmission spare, just the central axis of accommodation hole with the central axis of handle transmission spare is mutual parallel, the tip of first transmission spare is provided with can with the accommodation hole one-to-one can make the latch subassembly, the latch subassembly is provided with in the accommodation hole for the gliding cipher button subassembly, the latch subassembly is including setting up in proper order from outside to inside in the accommodation hole and the latch transmission spare is held to the latch when the latch is held in order in the latch in the accommodation hole and the latch transmission spare is held the spring catch the first and is held the effect the latch in the transmission spare is held in order in the transmission hole is in the first transmission hole is in the fact that the error the latch transmission spare is held the spring has the latch has the effect, the latch transmission spare is held in the transmission round the transmission hole is in the transmission hole has the fact the latch has the effect. When the lock is unlocked, the elastic balls are propped against the clamping holes under the action of the propping springs, the clamping force degree of the elastic balls is larger than the force of the elastic tongue transmission piece to drive the pushing piece, so that the handle transmission piece is sequentially linked with the first transmission piece, the second transmission piece and the elastic tongue transmission piece to unlock.

As a preferred embodiment, further defined as: the handle transmission piece end is provided with the protruding annular bulge of its axial direction, annular bulge cavity and be formed with first annular chamber, first transmission piece including with the annular flange portion of first annular chamber looks adaptation, the one end face of annular flange portion is provided with and is used for the transmission portion fixed with second transmission piece circumference, the other end face of annular flange portion has seted up the draw-in groove.

As a preferred embodiment, further defined as: an inward concave annular clamping groove is formed in the cavity wall of the first annular cavity, and a clamping ring used for propping against the annular flange part is clamped in the annular clamping groove.

As a preferred embodiment, further defined as: the second transmission piece comprises an annular boss, a first shaft body part protruding towards the axial direction of the annular boss is arranged on one end face of the annular boss, a second shaft body part protruding towards the axial direction of the annular boss is arranged on the other end face of the annular boss, the first shaft body part is matched with the first annular cavity, and a jack matched with the transmission part is formed in the end face of the first shaft body part.

As a preferred embodiment, further defined as: the end face of the spring tongue transmission piece is provided with a second annular cavity matched with the second shaft body, the bottom of the second annular cavity is provided with an arc-shaped groove, the end face of the second shaft body is provided with an arc-shaped protruding block, and the arc length of the arc-shaped groove is larger than that of the arc-shaped protruding block.

As a preferred embodiment, further defined as: the central angle of the arc length of the arc-shaped groove is larger than 180 degrees and smaller than 360 degrees, and the central angle of the arc length of the arc-shaped convex block is larger than 0 degrees and smaller than 180 degrees.

As a preferred embodiment, further defined as: the pushing piece end face is provided with a first protruding portion protruding towards the direction of the latch transmission piece, part of the peripheral face of the latch transmission piece protrudes outwards to form a circular arc-shaped flange, two ends of the circular arc-shaped flange and the peripheral face of the latch transmission piece are provided with circular arc-shaped notches, the first protruding portion is contained in the circular arc-shaped notches, one end face of the circular arc-shaped flange can abut against the side end face of the first protruding portion on the same side of the circular arc-shaped flange in the rotating process of the latch transmission piece, and therefore the latch transmission piece pushes the pushing piece to slide through the circular arc-shaped flange.

As a preferred embodiment, further defined as: the pushing piece end face is provided with a second protruding portion protruding towards the direction of the spring tongue transmission piece, and the protruding height of the second protruding portion is smaller than that of the first protruding portion, so that a first avoidance space is formed between the first protruding portion and the second protruding portion.

As a preferred embodiment, further defined as: the end face of the pushing piece, which is close to the top of the second protruding part, is inwards sunken to form a concave surface, and a second avoiding space for part of the handle to rotate and be accommodated is formed at the top of the pushing piece and the concave surface.

As a preferred embodiment, further defined as: the periphery of the handle transmission piece is provided with a driving block, and the driving block can enter the second avoidance space after the handle transmission piece pushes the pushing piece through the driving block.

The beneficial effects of the utility model are: the utility model is provided with an overvoltage protection mechanism, after an error password is input, when a user rotates the handle by overvoltage, the marble can be separated from the clamping hole, so that the handle transmission piece idles relative to the first transmission piece, the linkage cannot be realized, and the internal structure of the lockset cannot be damaged due to strong overvoltage.

[ description of the drawings ]

FIG. 1 is a schematic view of the structure created by the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a cross-sectional view of the overpressure protection mechanism;

fig. 4 is an enlarged view at a of fig. 3;

FIG. 5 is one of the exploded views of the overpressure protection mechanism;

FIG. 6 is a second exploded view of the overpressure protection mechanism;

fig. 7 is a structural view of the first avoidance space and the second avoidance space.

[ detailed description ] of the utility model

The utility model is further described in detail below with reference to the attached drawings and detailed description:

as shown in fig. 1-7, a novel overpressure protection mechanism for a mechanical coded lock handle comprises a lock shell 1, wherein a base 2 is arranged in the lock shell 1, a pushing piece 3 is slidably arranged on the base 2, a latch transmission piece 4 for door lock latch linkage is rotatably arranged on the base 2, a coded key assembly which enables the latch transmission piece 4 to drive the pushing piece 3 to slide relative to the base 2 when a correct code is input is arranged on the base 2, the lock shell 1 is rotatably provided with a handle transmission piece 5 for linkage with the handle, the handle transmission piece 5 sequentially passes through a first transmission piece 6 and a second transmission piece 7 to be linked with the latch transmission piece 4, a plurality of accommodating holes 50 are formed in the end parts of the handle transmission piece 5, the accommodating holes 50 deviate from the central axis of the handle transmission piece 5, the central axis of the accommodating holes 50 are mutually parallel to the central axis of the handle transmission piece 5, the end parts of the first transmission piece 6 are provided with a coded key assembly which can drive the pushing piece 3 to slide relative to the base 2, a latch ball bearing piece 81 is rotatably arranged in the first transmission piece 6, a latch assembly is rotatably held by a latch ball bearing part 81, a latch assembly 81 is rotatably held in the latch assembly is rotatably held in the first transmission piece 82, and a latch assembly is rotatably held in the latch assembly 81, and a latch assembly is rotatably held in the latch assembly 81, and is sequentially, and is rotatably held in the latch assembly, and is mounted in the latch assembly, and the latch assembly is mounted in the latch assembly, and has a hole 81, and the latch assembly is in the latch assembly is mounted in the latch assembly, and the device is mounted in the device. So that the first transmission element 6 cannot couple the latch transmission element 4 via the second transmission element 7; during unlocking, the clamping force degree of the marble 81 propped against the clamping hole 61 under the action of the propping spring 82 is larger than the force of the latch transmission piece 4 for driving the pushing piece 3, so that the handle transmission piece 5 is sequentially linked with the first transmission piece 6, the second transmission piece 7 and the latch transmission piece 4 for unlocking; preferably, the marble assembly 8 is provided with four groups, so that the first transmission member 6 is more uniformly subjected to the jacking force; after an error password is input, the marble 81 can be separated from the clamping hole 61 when a user rotates the handle by overpressure, so that the handle transmission piece 5 idles relative to the first transmission piece 6, linkage cannot be realized, and the internal structure of the lockset cannot be damaged due to strong overpressure.

As shown in fig. 5, the end of the handle driving member 5 is provided with an annular protrusion 51 protruding toward the axial direction, the annular protrusion 51 is hollow and is formed with a first annular cavity 52, the first driving member 6 includes an annular flange portion 62 adapted to the first annular cavity 52, one end surface of the annular flange portion 62 is provided with a driving portion 63 for fixing with the second driving member 7 circumferentially, and the other end surface of the annular flange portion 62 is provided with the clamping hole 61. The handle driving member 5 is sleeved in the annular flange portion 62 of the first driving member 6 through the first annular cavity 52, so that the handle driving member 5 can drive the first driving member 6 to rotate or idle relative to the first driving member 6, and the structure of the utility model is further more compact.

As shown in fig. 4, an annular groove 521 is formed on the wall of the first annular cavity 52, and a snap ring 9 for abutting against the annular flange 62 is clamped in the annular groove 521. The snap ring 9 serves to axially fix the first transmission member 6 in the first annular chamber 52.

As shown in fig. 5 and fig. 6, the second transmission member 7 includes an annular boss 71, one end surface of the annular boss 71 is provided with a first shaft body 73 protruding in an axial direction of the annular boss, the other end surface is provided with a second shaft body 74 protruding in the axial direction of the annular boss, the first shaft body 73 is adapted to the first annular cavity 52, an insertion hole 731 adapted to the transmission portion 63 is preferably formed in an end surface of the first shaft body 73, and the transmission portion 63 is preferably elliptical, and likewise, the insertion hole 731 is elliptical, so as to realize circumferential fixation of the first transmission member 6 and the second transmission member 7.

As shown in fig. 5 and fig. 6, the end surface of the latch transmission member 4 is provided with a second annular cavity 41 adapted to the second shaft body 74, an arc groove 42 is provided at the bottom of the second annular cavity 41, an arc projection 741 is provided on the end surface of the second shaft body 74, the arc length of the arc groove 42 is greater than the arc length of the arc projection 741, the central angle of the arc length of the arc groove 42 is greater than 180 ° and less than 360 °, and the central angle of the arc length of the arc projection 741 is greater than 0 ° and less than 180 °. Preferably, the arc length of the arcuate slot 42 has a central angle of 225 and the arc length of the arcuate projection 741 has a central angle of 135, allowing some margin for rotation when the handle is rotated by overpressure.

As shown in fig. 7, the end surface of the pushing member 3 is provided with a first protruding portion 31 protruding toward the direction of the latch transmission member 4, a part of the peripheral surface of the latch transmission member 4 protrudes outwards to form a circular arc flange 44, two ends of the circular arc flange 44 and the peripheral surface of the latch transmission member 4 form a circular arc gap 45, the first protruding portion 31 is accommodated in the circular arc gap 45, and during the rotation of the latch transmission member 4, one end surface of the circular arc flange 44 can abut against the side end surface of the first protruding portion 31 on the same side of the circular arc flange 44, so that the latch transmission member 4 pushes the pushing member 3 to slide through the circular arc flange 44. When the right password is input, the handle can be driven to rotate by other parts to the latch transmission piece 4, and at the moment, the circular arc-shaped flange 44 abuts against the first protruding portion 31 and pushes the pushing piece 3 to move, so that the latch transmission piece 4 has enough rotating space to drive the latch to retract, and the unlocking purpose is achieved.

As shown in fig. 7, a second protruding portion 32 protruding toward the latch transmission member 4 is disposed on the end surface of the pushing member 3, and the protruding height of the second protruding portion 32 is smaller than that of the first protruding portion 31, so that a first avoiding space 301 is formed between the first protruding portion 31 and the second protruding portion 32. A concave surface 302 is formed on the end surface of the pushing member 3 near the top of the second protruding portion 32, and a second avoiding space 303 is formed on the top of the concave surface 302 and the pushing member 3 for accommodating part of the handle in a rotating manner. The peripheral surface of the handle transmission member 5 is provided with a driving block 53, and the driving block 53 can enter the second avoidance space 303 after the handle transmission member 5 pushes the pushing member 3 through the driving block 53. The avoidance space enables the structure of the utility model to be more compact, saves space and optimizes the volume of the product.

Claims

1. The utility model provides a novel an overvoltage protection mechanism for mechanical trick lock handle, including lock shell (1), be provided with base (2) in lock shell (1), it is provided with impeller (3) to slide on base (2), it is provided with bullet tongue driving medium (4) that are used for the lock bullet tongue to link to rotate on base (2), be provided with on base (2) just can make when the input correct password bullet tongue driving medium (4) drive impeller (3) are for base (2) gliding cipher key subassembly, lock shell (1) rotates and is provided with handle driving medium (5) that are used for with the handle linkage, handle driving medium (5) pass through first driving medium (6), second driving medium (7) in proper order with bullet tongue driving medium (4) linkage, its characterized in that: the end part of the handle transmission member (5) is provided with a plurality of containing holes (50), the containing holes (50) deviate from the central axis of the handle transmission member (5), the central axis of the containing holes (50) is parallel to the central axis of the handle transmission member (5), the end part of the first transmission member (6) is provided with clamping holes (61) which can be opposite to the containing holes (50) one by one, the containing holes (50) are internally provided with a marble component (8), the marble component (8) comprises a marble (81) and a propping spring (82) which are sequentially arranged in the containing holes (50) from outside to inside, the propping spring (82) is used for propping the marble (81) in the clamping holes (61) during locking, and after a wrong password is input, the handle transmission member (5) is used for linking the first transmission member (6) to rotate with a larger force than the first transmission member (6) which is propped against the clamping hole (61) under the action of the propping spring (82), and the first transmission member (6) can be disconnected from the first transmission member (4) through the propping spring (81); during unlocking, the marble (81) is propped against the clamping hole (61) under the action of the propping spring (82) and the clamping force is larger than the force of the latch transmission piece (4) for driving the pushing piece (3), so that the handle transmission piece (5) is sequentially connected with the first transmission piece (6), the second transmission piece (7) and the latch transmission piece (4) for unlocking.

2. The novel overpressure protection mechanism for a mechanical combination lock handle of claim 1, wherein: the handle transmission piece (5) tip is provided with protruding annular bulge (51) to its axial direction, annular bulge (51) cavity and be formed with first annular chamber (52), first transmission piece (6) including with annular flange portion (62) of first annular chamber (52) looks adaptation, the one end face of annular flange portion (62) is provided with and is used for with second transmission piece (7) circumference fixed transmission portion (63), the other end face of annular flange portion (62) has seted up draw-in groove (61).

3. The novel overpressure protection mechanism for a mechanical combination lock handle of claim 2, wherein: an inward concave annular clamping groove (521) is formed in the cavity wall of the first annular cavity (52), and a clamping ring (9) used for propping against the annular flange part (62) is clamped in the annular clamping groove (521).

4. The novel overvoltage protection mechanism for a mechanical combination lock handle according to claim 3, wherein: the second transmission piece (7) comprises an annular boss (71), a first shaft body (73) protruding towards the axial direction of the annular boss (71) is arranged on one end face of the annular boss (71), a second shaft body (74) protruding towards the axial direction of the annular boss is arranged on the other end face of the annular boss, the first shaft body (73) is matched with the first annular cavity (52), and an inserting hole (731) matched with the transmission portion (63) is formed in the end face of the first shaft body (73).

5. The novel overvoltage protection mechanism for a mechanical combination lock handle according to claim 4, wherein: the end face of the spring tongue transmission piece (4) is provided with a second annular cavity (41) matched with the second shaft body (74), the bottom of the second annular cavity (41) is provided with an arc groove (42), the end face of the second shaft body (74) is provided with an arc-shaped lug (741), and the arc length of the arc groove (42) is larger than that of the arc-shaped lug (741).

6. The novel overpressure protection mechanism for a mechanical combination lock handle of claim 5, wherein: the central angle of the arc length of the arc-shaped groove (42) is larger than 180 degrees and smaller than 360 degrees, and the central angle of the arc length of the arc-shaped convex block (741) is larger than 0 degrees and smaller than 180 degrees.

7. The novel overvoltage protection mechanism for a mechanical combination lock handle according to any one of claims 1-6, wherein: the pushing piece (3) is provided with a first protruding portion (31) protruding towards the direction of the latch transmission piece (4), a circular arc-shaped flange (44) protrudes outwards from the part of the peripheral surface of the latch transmission piece (4), circular arc-shaped notches (45) are formed at two ends of the circular arc-shaped flange (44) and the peripheral surface of the latch transmission piece (4), the first protruding portion (31) is accommodated in the circular arc-shaped notches (45), one end face of the circular arc-shaped flange (44) can abut against the side end face of the first protruding portion (31) on the same side of the circular arc-shaped flange in the rotating process of the latch transmission piece (4), and therefore the latch transmission piece (4) pushes the pushing piece (3) to slide through the circular arc-shaped flange (44).

8. The novel overpressure protection mechanism for a mechanical combination lock handle of claim 7, wherein: the pushing piece (3) is provided with a second protruding portion (32) protruding towards the direction of the latch transmission piece (4), and the protruding height of the second protruding portion (32) is smaller than that of the first protruding portion (31), so that a first avoiding space (301) is formed between the first protruding portion (31) and the second protruding portion (32).

9. The novel overpressure protection mechanism for a mechanical combination lock handle of claim 8, wherein: the end face of the pushing piece (3) close to the top of the second protruding part (32) is inwards sunken to form a concave surface (302), and a second avoiding space (303) for part of the handle to rotate and be accommodated is formed at the top of the concave surface (302) and the top of the pushing piece (3).

10. The novel overpressure protection mechanism for a mechanical combination lock handle of claim 9, wherein: the periphery of the handle transmission member (5) is provided with a driving block (53), and the driving block (53) can enter the second avoidance space (303) after the handle transmission member (5) pushes the pushing member (3) through the driving block (53).