CN113374349A

CN113374349A - Mechanical coded lock convenient for changing code

Info

Publication number: CN113374349A
Application number: CN202110660226.4A
Authority: CN
Inventors: 周胜权; 周子涵; 周子霖
Original assignee: Wenzhou Xinmima Lock Industry Co ltd
Current assignee: Wenzhou Xinmima Lock Industry Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-09-10
Anticipated expiration: 2041-06-15
Also published as: CN113374349B

Abstract

A mechanical coded lock convenient for changing a code comprises a shell, a code mechanism, a code changing lever, a lever shaft, a movable plate, a first elastic piece, a gear changing pin, a second elastic piece, a push button, a third elastic piece, an unlocking plate and a fourth elastic piece; the shell is provided with a channel for the unlocking plate to extend out; the password mechanism is provided with the multiunit side by side along unlocking plate moving direction, password mechanism includes two sets of password subassemblies that jump ring and symmetry set up, the password subassembly includes the password turn-button and to the chip, first draw-in groove has set gradually from top to bottom on the password turn-button, second draw-in groove and first spacing plane, be provided with the interior concave part that is used for the chucking in second draw-in groove department on the jump ring, be provided with the code groove on the chip, the fly leaf includes that both sides are used for the card to go into the code bellying to the code groove, and the front end is used for bulldozing and shifts the round pin so that the round pin that shifts rotates to the push rod portion that can be pushed away the position that the button promoted. The invention has the advantages of convenient code change, small volume, low cost and convenient popularization.

Description

Mechanical coded lock convenient for changing code

Technical Field

The invention relates to the technical field of mechanical coded locks, in particular to a mechanical coded lock convenient for changing a code.

Background

The mechanical cipher lock has unique operation mode similar to that of old telephone set, and has one cipher input after the dial is turned clockwise from the starting point to some digit and returned to the starting point. The operation is repeated until the last password is input, and the dial is rotated anticlockwise from the starting point to unlock the lock. When the lock is unlocked, the inside is reset, so that the dial is retreated to the starting point to close the lock, the lock can be unlocked only by inputting the password again, and the problem of the reset inside does not need to be considered. If the password is wrongly input, the dial can be reset by rotating anticlockwise (virtual unlocking), and then the password is input again.

The existing twist mechanical coded lock generally fixes the password when leaving the factory, and the mechanical coded lock capable of changing the password is large in size, high in cost and not easy to popularize.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a mechanical coded lock which is convenient to change a code, and the mechanical coded lock is convenient to change the code, small in size, low in cost and convenient to popularize.

(II) technical scheme

The invention provides a mechanical coded lock convenient for changing a code, which comprises a shell, a coded mechanism, a code changing lever, a lever shaft, a movable plate, a first elastic part, a gear changing pin, a second elastic part, a push button, a third elastic part, a lock unlocking plate and a fourth elastic part, wherein the code changing lever is arranged on the shell;

the shell is provided with a channel for the unlocking plate to extend out; the cipher mechanism is provided with a plurality of groups side by side along the moving direction of the unlocking plate, the cipher mechanism comprises a snap spring and two groups of cipher components which are symmetrically arranged, each cipher component comprises a cipher rotary button and a cipher aligning piece, a first clamping groove, a second clamping groove and a first limiting plane are sequentially arranged on the cipher rotary button from top to bottom, a plurality of second clamping grooves and a plurality of first limiting planes are uniformly arranged around the central shaft of the cipher rotary button, the second clamping grooves correspond to the first limiting planes one by one, a code inserting plate part for being clamped into the first clamping grooves is arranged on the code changing lever, the code changing lever is rotatably arranged on the shell, an inner concave part for being clamped at the second clamping grooves is arranged on the snap spring, the snap spring is arranged in the shell, through holes for the cipher rotary button to pass through are arranged on the cipher aligning piece, the through holes comprise a plurality of second limiting planes one by one corresponding to the first limiting planes, the aligning grooves are arranged on the aligning piece, and a pressing plate for pressing the cipher aligning piece is arranged in the shell, the fly leaf includes that both sides are used for the card to go into the sign indicating number bellying of going into in the sign indicating number groove, and the front end is used for bulldozing the round pin of shifting so that the round pin of shifting rotates to the push rod portion that can be pushed away the position that the button promoted, the fly leaf slides and sets up in the shell, first elastic component both ends respectively with fly leaf and shell inner wall connection, the round pin of shifting rotates and sets up on the unlocking plate, it slides and sets up on the shell to push away the button, the second elastic component both ends respectively with shift the round pin and be connected with the unlocking plate, the third elastic component both ends respectively with push away button and shell inner wall connection, the fourth elastic component both ends respectively with unlocking plate and shell inner wall connection.

Preferably, the housing includes an upper cover and a base plate, the base plate is detachably connected to the upper cover, and the channel is located on the upper cover.

Preferably, the first clamping groove is an annular groove, the second clamping groove is an arc-shaped groove, and the inner concave part is an arc-shaped rod.

Preferably, the second clamping groove, the first limiting plane and the second limiting plane are provided with ten.

Preferably, the code aligning groove is a V-shaped groove, and the code aligning protrusion is a V-shaped plate protrusion.

Preferably, the unlocking plate is arranged on the shell in a sliding manner, a rotating groove and a movable groove are formed in the unlocking plate, and the movable groove is communicated with the rotating groove; the gear shifting pin comprises a rotating part, a connecting rod part, a first push rod bearing part and a second push rod bearing part which are integrally formed, the gear shifting pin is in a cross shape, wherein the rotating part and the second push rod bearing part are oppositely arranged, the connecting rod part and the first push rod bearing part are oppositely arranged, the rotating part is rotatably arranged in a rotating groove, and the connecting rod part, the first push rod bearing part and the second push rod bearing part are all positioned in a movable groove; two ends of the second elastic piece are respectively connected with the connecting rod part and the unlocking plate.

Preferably, the first elastic member, the second elastic member, the third elastic member and the fourth elastic member are compression springs.

Preferably, the code changing lever is arranged on a lever shaft, and the lever shaft is rotatably arranged on the shell.

Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:

the invention has the advantages of convenient code changing, small volume, low cost and convenient popularization, and can realize the purpose of code changing without disassembly. When the code is changed, rotate the password turn-button to the exact position earlier, at this moment, to the sign indicating number bellying card income to the code inslot, two password turn-buttons in the outside pulling password subassembly, the password turn-button drives the change lever through first draw-in groove and picture peg portion and rotates, make two change levers rotate to positive V-arrangement by the shape of falling V-arrangement, at this moment, first spacing plane is followed and is putd aside in the through-hole to the code piece, first spacing plane can not be influenced to the second spacing plane, the user comes the conversion password through rotating the password turn-button, when rotating the password turn-button, the password turn-button promotes the jump ring through the second draw-in groove and warp, interior concave part can block in the second draw-in groove, make first spacing plane synchronous rotation to the position that corresponds with the spacing plane of second. After the password conversion is finished, the password turn button is pressed, the first limiting plane moves to the inner side of the second limiting plane, and then the password turn button is rotated to disorder the password. When needs are unblanked, the password turn-button is rotated, and the password turn-button drives and rotates the code piece, until rotating the code piece to can be by the position of code groove internal to the card income of code protruding portion, at this moment, under the elastic action of first elastic component, the code protruding portion card income is to the code groove, push rod portion promotes the round pin of shifting and rotates, makes the round pin of shifting rotate to pushing away the button front side, and the user outwards promotes and pushes away the button, pushes away the button and drives the unlocking plate through the round pin of shifting and move outward in order to realize unblanking.

Drawings

Fig. 1 is a schematic structural diagram of a mechanical combination lock convenient for changing a combination according to the present invention.

Fig. 2 is a sectional view of a mechanical combination lock with a convenient combination change according to the present invention.

Fig. 3 is a schematic partial structure diagram of a mechanical combination lock convenient for changing a combination according to the present invention.

Fig. 4 is a schematic structural diagram of a shift pin in a mechanical combination lock for conveniently changing a combination according to the present invention.

Fig. 5 is an exploded view of the structure of the code button, the code changing lever, the snap spring and the code aligning sheet in the mechanical coded lock which is convenient for changing the code.

Fig. 6 is a schematic structural diagram of a password rotary button, a password changing lever and a lever shaft in a normal state in the mechanical password lock for conveniently changing the password provided by the invention.

Fig. 7 is a schematic structural diagram of a combination knob, a change lever and a lever shaft in a mechanical combination lock for conveniently changing the combination according to the present invention in a change state.

Reference numerals: 1. an upper cover; 2. a base plate; 3. a password turning button; 301. a first card slot; 302. a second card slot; 303. a first limit plane; 4. a code changing lever; 401. a board insertion part; 5. a lever shaft; 6. a clamp spring; 601. an inner concave portion; 7. chip pairing; 701. a second limit plane; 702. aligning the code slot; 8. pressing a plate; 9. a movable plate; 901. a code matching bulge part; 902. a push rod part; 10. a first elastic member; 11. a gear shifting pin; 111. a rotating part; 112. a connecting rod part; 113. a first push rod part; 114. a second push-bearing rod part; 12. a second elastic member; 13. a push button; 14. a third elastic member; 15. unlocking the lock plate; 151. a rotating groove; 152. a movable groove; 16. and a fourth elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1 to 7, the mechanical combination lock convenient for changing the combination provided by the present invention comprises a housing, a combination mechanism, a combination changing lever 4, a lever shaft 5, a movable plate 9, a first elastic member 10, a shift pin 11, a second elastic member 12, a push button 13, a third elastic member 14, an unlocking plate 15 and a fourth elastic member 16;

the shell is provided with a channel for the unlocking plate 15 to extend out; the password mechanism is provided with a plurality of groups side by side along the moving direction of the unlocking plate 15, the password mechanism comprises a clamp spring 6 and two groups of password components which are symmetrically arranged, each password component comprises a password turn button 3 and a code matching sheet 7, a first clamp groove 301, a second clamp groove 302 and a first limiting plane 303 are sequentially arranged on the password turn button 3 from top to bottom, a plurality of second clamp grooves 302 and the first limiting planes 303 are uniformly arranged around the central shaft of the password turn button 3, the second clamp grooves 302 correspond to the first limiting planes 303 one by one, a board inserting part 401 used for being clamped into the first clamp grooves 301 is arranged on the code changing lever 4, the code changing lever 4 is rotatably arranged on the shell, an inner concave part 601 used for being clamped at the second clamp grooves 302 is arranged on the clamp spring 6, the clamp spring 6 is arranged in the shell, through holes for the password turn button 3 to pass through are arranged on the code matching sheet 7, the through holes comprise a plurality of second limiting planes 701 corresponding to the first limiting planes 303 one by one, the pair of code sheets 7 are provided with a pair of code grooves 702, a pressing plate 8 for pressing the pair of code sheets 7 is arranged in the shell, the pair of code sheets 7 are pressed on the inner surface of the shell but do not interfere with the rotation of the pair of code sheets 7, the movable plate 9 comprises a pair of code protrusions 901 with two sides used for being clamped into the pair of code grooves 702, and a push rod portion 902 with the front end used for pushing and pressing the shift pin 11 so that the shift pin 11 can rotate to the position pushed by the push button 13, the movable plate 9 is arranged in the shell in a sliding mode, two ends of the first elastic piece 10 are respectively connected with the movable plate 9 and the inner wall of the shell, the shift pin 11 is arranged on the unlocking plate 15 in a rotating mode, the push button 13 is arranged on the shell in a sliding mode, two ends of the second elastic piece 12 are respectively connected with the shift pin 11 and the unlocking plate 15, two ends of the third elastic piece 14 are respectively connected with the push button 13 and the inner wall of the shell, and two ends of the fourth elastic piece 16 are respectively connected with the unlocking plate 15 and the inner wall of the shell.

The invention has the advantages of convenient code changing, small volume, low cost and convenient popularization, and can realize the purpose of code changing without disassembly. When changing the code, earlier rotate password turn-button 3 to exact position, at this moment, to sign indicating number bellying 901 card go into to sign indicating number inslot 702, two password turn-buttons 3 in the outside pulling password subassembly, password turn-button 3 drives change lever 4 through first draw-in groove 301 and picture peg portion 401 and rotates, make two change lever 4 rotate to positive V-arrangement by the shape of falling V-arrangement, at this moment, first spacing plane 303 is putd aside from the through-hole to code chip 7, first spacing plane 303 can not influenced by second spacing plane 701, the user changes the password through rotating password turn-button 3, when rotating password turn-button 3, password turn-button 3 promotes jump ring 6 through second draw-in groove 302 and warp, interior recess 601 can block in second draw-in groove 302, make first spacing plane 303 synchronous rotation to the position that corresponds with second spacing plane 701. After the password conversion is finished, the password turn button 3 is pressed, the first limiting plane 303 moves to the inner side of the second limiting plane 701, and then the password turn button 3 is rotated to disorder the password. When needing to unblank, rotatory password turn button 3, password turn button 3 drives and rotates code alignment piece 7, until code alignment piece 7 rotates to the position that can be gone into in the code alignment groove 702 by code alignment bellying 901 card, at this moment, under the elastic force effect of first elastic component 10, code alignment bellying 901 card goes into code alignment groove 702, push rod portion 902 promotes shift pin 11 and rotates, makes shift pin 11 rotate to pushing away button 13 front side, the user outwards promotes and pushes away button 13, push button 13 drives unlocking plate 15 through shifting pin 11 and moves outward in order to realize unblanking.

In an alternative embodiment, the housing comprises a top cover 1 and a base plate 2, the base plate 2 being removably attached to the top cover 1, the channel being located on the top cover 1.

The upper cover 1 and the bottom plate 2 are detachably connected, so that internal parts can be conveniently detached.

In an alternative embodiment, the first engaging groove 301 is an annular groove and can be engaged with the engaging plate portion 401, the second engaging groove 302 is an arc-shaped groove and is recessed inward, and the inner recess 601 is an arc-shaped rod and can be accurately engaged with the second engaging groove 302, so that the positioning is accurate.

In an alternative embodiment, the second card slot 302, the first limiting plane 303 and the second limiting plane 701 are provided with ten numbers, which correspond to ten numbers from 0 to 9 on the password turning knob 3.

In an alternative embodiment, the code aligning groove 702 is a V-shaped groove, and the code aligning protrusion 901 is a V-shaped plate protrusion, which can be accurately and firmly snapped into the V-shaped groove.

In an alternative embodiment, the unlocking plate 15 is slidably disposed on the housing, the unlocking plate 15 is provided with a rotating groove 151 and a movable groove 152, and the movable groove 152 is communicated with the rotating groove 151; the shift pin 11 comprises a rotating part 111, a connecting rod part 112, a first push rod bearing part 113 and a second push rod bearing part 114 which are integrally formed, the shift pin 11 is in a cross shape, wherein the rotating part 111 and the second push rod bearing part 114 are oppositely arranged, the connecting rod part 112 and the first push rod bearing part 113 are oppositely arranged, the rotating part 111 is rotatably arranged in a rotating groove 151, and the connecting rod part 112, the first push rod bearing part 113 and the second push rod bearing part 114 are all positioned in a movable groove 152; the second elastic member 12 is connected at both ends thereof to the connecting rod portion 112 and the unlocking plate 15, respectively.

In the locked state, the second elastic member 12 pushes the connecting rod portion 112 to make the second push-bearing rod portion 114 offset from the push button 13. When the lock is unlocked, when each password knob 3 is rotated to the correct orientation, the code aligning protrusion 901 is inserted into the code aligning groove 702, the first elastic member 10 pushes the movable plate 9 forward, the movable plate 9 pushes the first push rod supporting portion 113 forward through the push rod portion 902, so that the shift pin 11 rotates through the rotating portion 111 and the rotating groove 151, at this time, the second push rod supporting portion 114 rotates to the front side of the push button 13, the user applies forward pushing force to the push button 13, the third elastic member 14 is compressed, the shift pin 11 can transmit the force applied by the push button 13 to the unlocking plate 15 for unlocking, and the fourth elastic member 16 is in a compressed state, so that the overall structure is compact, and the occupied space is small.

In an alternative embodiment, the first elastic element 10, the second elastic element 12, the third elastic element 14 and the fourth elastic element 16 are compression springs, which is easy to install and low in cost.

In an optional embodiment, the escape lever 4 is disposed on the lever shaft 5, the lever shaft 5 is rotatably disposed on the housing, on the premise that the escape lever 4 can rotate, the rotation range is limited by the housing, and the escape lever 4 is clamped in the first clamping groove 301 through the insertion plate portion 401, so as to prevent the password turning button 3 from falling off.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A mechanical coded lock convenient for changing a code is characterized by comprising a shell, a coded mechanism, a code changing lever (4), a lever shaft (5), a movable plate (9), a first elastic piece (10), a gear shifting pin (11), a second elastic piece (12), a push button (13), a third elastic piece (14), a lock opening plate (15) and a fourth elastic piece (16);

the shell is provided with a channel for the unlocking plate (15) to extend out; the password mechanism is provided with a plurality of groups side by side along the moving direction of the unlocking plate (15), the password mechanism comprises a clamp spring (6) and two groups of password components which are symmetrically arranged, each password component comprises a password turn button (3) and a code aligning piece (7), a first clamping groove (301), a second clamping groove (302) and a first limiting plane (303) are sequentially arranged on the password turn button (3) from top to bottom, a plurality of second clamping grooves (302) and the first limiting plane (303) are uniformly arranged around the central shaft of the password turn button (3), the second clamping grooves (302) correspond to the first limiting plane (303) one by one, a code changing lever (4) is provided with a plate inserting part (401) which is clamped into the first clamping groove (301), the code changing lever (4) is rotatably arranged on the shell, an inner concave part (601) which is clamped at the second clamping groove (302) is arranged on the clamp spring (6), the clamp spring (6) is arranged in the shell, the code aligning sheet (7) is provided with a through hole for the code rotating button (3) to pass through, the through hole comprises a plurality of second limiting planes (701) which are in one-to-one correspondence with the first limiting planes (303), the code aligning sheet (7) is provided with a code aligning groove (702), a pressing plate (8) used for pressing the code aligning sheet (7) is arranged in the shell, the movable plate (9) comprises code aligning convex parts (901) of which the two sides are used for being clamped in the code aligning groove (702) and a push rod part (902) of which the front end is used for pushing and pressing the gear shifting pin (11) so as to enable the gear shifting pin (11) to rotate to the position pushed by the push button (13), the movable plate (9) is arranged in the shell in a sliding mode, the two ends of the first elastic part (10) are respectively connected with the movable plate (9) and the inner wall of the shell, the gear shifting pin (11) is rotationally arranged on the unlocking plate (15), the push button (13) is arranged on the shell in a sliding mode, the two ends of the second elastic part (12) are respectively connected with the gear shifting pin (11) and the unlocking plate (15), the two ends of the third elastic piece (14) are respectively connected with the push button (13) and the inner wall of the shell, and the two ends of the fourth elastic piece (16) are respectively connected with the unlocking plate (15) and the inner wall of the shell.

2. The mechanical coded lock convenient for changing the code according to the claim 1 is characterized in that the shell comprises an upper cover (1) and a bottom plate (2), the bottom plate (2) is detachably connected with the upper cover (1), and the channel is positioned on the upper cover (1).

3. A mechanical combination lock with a convenient combination according to claim 2, wherein the first engaging groove (301) is an annular groove, the second engaging groove (302) is an arc-shaped groove, and the inner concave portion (601) is an arc-shaped rod.

4. A mechanical combination lock with convenient combination changing function as claimed in claim 3, wherein the second slot (302), the first limiting plane (303) and the second limiting plane (701) are provided with ten.

5. A mechanical coded lock convenient for changing a code according to claim 4, wherein the code aligning groove (702) is a V-shaped groove, and the code aligning protrusion (901) is a V-shaped plate protrusion.

6. The mechanical coded lock convenient for changing the code according to the claim 1 is characterized in that the unlocking plate (15) is arranged on the shell in a sliding way, the unlocking plate (15) is provided with a rotating groove (151) and a movable groove (152), and the movable groove (152) is communicated with the rotating groove (151); the gear shifting pin (11) comprises a rotating part (111), a connecting rod part (112), a first push rod bearing part (113) and a second push rod bearing part (114) which are integrally formed, the gear shifting pin (11) is in a cross shape, wherein the rotating part (111) and the second push rod bearing part (114) are oppositely arranged, the connecting rod part (112) and the first push rod bearing part (113) are oppositely arranged, the rotating part (111) is rotatably arranged in a rotating groove (151), and the connecting rod part (112), the first push rod bearing part (113) and the second push rod bearing part (114) are all positioned in a movable groove (152); two ends of the second elastic piece (12) are respectively connected with the connecting rod part (112) and the unlocking plate (15).

7. A mechanical combination lock facilitating combination change according to claim 1, wherein the first elastic member (10), the second elastic member (12), the third elastic member (14) and the fourth elastic member (16) are compression springs.

8. The mechanical coded lock convenient for changing the code according to the claim 1 is characterized in that the code changing lever (4) is arranged on a lever shaft (5), and the lever shaft (5) is rotatably arranged on the shell.