Labor-saving lock

Abstract

The utility model discloses a labor-saving lock which comprises a lock shell, a lock cylinder shifting wheel, a spring bolt assembly and a linkage assembly. The spring bolt assembly comprises a main supporting plate and a main spring bolt. The linkage assembly comprises a first shifting plate for executing an unlocking action and a second shifting plate for executing a locking action; a first rotating piece is hinged to the first shifting plate, and a second rotating piece is hinged to the second shifting plate; the linkage assembly further comprises a supporting plate linkage piece matched with the main supporting plate in a linkage mode, an inserting piece is arranged on the supporting plate linkage piece, a first inserting groove matched with the inserting piece is formed in the main supporting plate, and a second inserting groove matched with the inserting piece is formed in the second rotating piece. The supporting plate linkage piece is further provided with a stress pin in a protruding mode, and the first rotating piece is provided with a first force application arm matched with the stress pin. The linkage assemblies are arranged in groups, the limitation of forward rotation and reverse rotation angles of the lock cylinder shifting wheel is relieved, the lock cylinder shifting wheel can rotate at a large angle, and unlocking and locking are more labor-saving.

Description

Technical Field

[0001] This utility model belongs to the field of lock technology, specifically relating to a labor-saving lock. Background Technology

[0002] Locks typically include a bolt assembly, a linkage assembly, and a cylinder derailleur. The movement of the bolt is controlled by the cooperation between the cylinder derailleur and the linkage assembly, thus achieving locking and unlocking. The linkage assembly includes a derailleur plate that directly cooperates with the cylinder derailleur plate. Most existing lock linkage assemblies only have one derailleur plate. In order to achieve forward and reverse cooperation between the cylinder derailleur plate and the derailleur plate, the forward and reverse rotation angles of the cylinder derailleur plate are limited to a small range, making it impossible to achieve large-angle rotation, resulting in difficulty in locking and unlocking. Summary of the Invention

[0003] This utility model addresses the problem of laborious unlocking and locking in existing locks by providing a labor-saving lock.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A labor-saving lock includes a lock housing, and a lock cylinder deflector, a bolt assembly, and a linkage assembly assembled within the lock housing. The bolt assembly includes a main support plate and a main bolt mounted above the main support plate. The linkage assembly includes a first deflector plate for performing an unlocking action and a second deflector plate for performing a locking action. The first deflector plate has a first force-receiving structure that cooperates with the lock cylinder deflector, and the second deflector plate has a second force-receiving structure that cooperates with the lock cylinder deflector. A first rotating member is hinged to the first deflector plate, and a second rotating member is hinged to the second deflector plate. The linkage assembly also includes a support plate linkage member that is linked to the main support plate. The support plate linkage member has a insert, and the main support plate has a first slot that cooperates with the insert. The second rotating member has a second slot that cooperates with the insert. The support plate linkage member also has a protruding force-receiving pin, and the first rotating member has a first force-applying arm that cooperates with the force-receiving pin.

[0006] Preferably, the lock cylinder dial is provided with a dial block, the first force-bearing structure is located on the forward rotation trajectory of the dial block, and the second force-bearing structure is located on the reverse rotation trajectory of the dial block.

[0007] Preferably, the first and second levers are respectively disposed on both sides of the lock cylinder lever, the first force-bearing structure is a first force-bearing piece formed at the end of the first lever, and the first force-bearing piece extends toward the lock cylinder lever; the second force-bearing structure is a second force-bearing piece vertically disposed at the end of the second lever.

[0008] Preferably, the first rotating member includes a first rotating part, and the first force-applying arm protrudes from the periphery of the first rotating part; the periphery of the first rotating part is also provided with a first hinge arm that is rotatably hinged to the first lever plate; and a first rotating hole is provided in the center of the first rotating part.

[0009] Preferably, the pallet linkage has a first end corner and a second end corner, the insert and the force-bearing pin are both located at the first end corner, and a second rotating hole is provided at the second end corner.

[0010] Preferably, a pin is fixed on the lock housing, and the pin passes through the first rotating hole and the second rotating hole. The first rotating component and the support plate linkage component both rotate around the pin as the rotation center.

[0011] Preferably, the latch assembly further includes a beveled latch and a support rod fixed on the beveled latch. The lock housing is also equipped with a handle deflector and a handle linkage wheel fitted on the handle shaft. The handle deflector includes a first main wheel that engages with the handle shaft, and a paddle and a linkage plate protruding from the periphery of the first main wheel. The paddle extends toward the drag bar and engages with a baffle at the bottom of the drag bar.

[0012] Preferably, the linkage plate has an arc-shaped groove, and the first dial plate has a linkage pin that cooperates with the linkage plate. The linkage pin passes through the end of the arc-shaped groove. When the first dial plate performs the unlocking action, it pushes the handle dial wheel to rotate to pull back the latch.

[0013] Preferably, the handle linkage wheel includes a second main body wheel that engages with the handle shaft, and a swing arm protruding from the periphery of the second main body wheel. A handle linkage plate is provided between the handle linkage wheel and the second rotating component to realize the linkage between the handle and the lock tongue support plate.

[0014] Preferably, the handle linkage plate includes a first linkage arm and a second linkage arm, the connection point of the first linkage arm and the second linkage arm is at an obtuse angle, the end of the first linkage arm is hinged to the swing arm, and the end of the second linkage arm is hinged to the second rotating member.

[0015] Compared with the prior art, the present invention has the following advantages: both the dial plate and the rotating component are provided in two sets, and the force-bearing structures of the two dial plates are respectively set on the forward and reverse rotation paths of the lock cylinder dial wheel, respectively performing the unlocking and locking actions, thereby removing the limitation of the forward and reverse rotation angles of the lock cylinder dial wheel, enabling the lock cylinder dial wheel to achieve large-angle rotation, making unlocking and locking more effortless; the structure of each linkage component is reasonably set, the cooperation is reliable, and the structure is compact. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the locking tongue assembly and linkage assembly in this utility model;

[0018] Figure 3 This is a schematic diagram showing the cooperation between the first lever plate, the first rotating component, and the support plate linkage component in this utility model;

[0019] Figure 4 This is a schematic diagram showing the cooperation between the second lever, the second rotating component, and the support plate linkage component in this utility model;

[0020] Figure 5 This is a schematic diagram of the handle and dial structure in this utility model;

[0021] Figure 6 This is a schematic diagram of the handle linkage wheel and handle linkage plate structure in this utility model;

[0022] The diagram shows the following markings: lock housing 10; pin 11; lock cylinder dial 20; dial block 21; main bolt 31; main support plate 32; support plate linkage 33; insert 331; force-bearing pin 332; first dial plate 41; first force-bearing plate 411; linkage pin 412; first rotating component 42; first force-applying arm 421; first hinge arm 422; second dial plate 51; second force-bearing plate 511; second rotating component 52; oblique tongue 61; support rod 62; handle shaft 70; handle dial 80; dial piece 81; linkage plate 82; arc groove 821; handle linkage wheel 91; swing arm 911; handle linkage plate 92; first linkage arm 921; second linkage arm 922. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0024] like Figures 1-4 As shown, this embodiment discloses a labor-saving lock, which includes a lock housing 10, and a lock cylinder dial 20, a bolt assembly, and a linkage assembly assembled in the lock housing 10; the bolt assembly includes a main support plate 32 and a main bolt 31 assembled above the main support plate 32.

[0025] The linkage assembly includes a first lever 41 for unlocking and a second lever 51 for locking. The first lever 41 has a first force-bearing structure that cooperates with the lock cylinder wheel 20, and the second lever 51 has a second force-bearing structure that cooperates with the lock cylinder wheel 20. The lock cylinder wheel 20 has a protruding lever 21. The first force-bearing structure is located on the forward rotation trajectory of the lever 21, and the second force-bearing structure is located on the reverse rotation trajectory of the lever 21. Specifically, the first lever 41 and the second lever 51 are respectively located on both sides of the lock cylinder wheel 20. The first force-bearing structure is a first force-bearing piece 411 formed at the end of the first lever 41, which extends toward the lock cylinder wheel 20. The second force-bearing structure is a second force-bearing piece 511 vertically disposed at the end of the second lever 51. The lever and rotating parts are provided in two sets. The force-bearing structures of the two levers are respectively set on the forward and reverse rotation paths of the lock cylinder lever 20, and respectively perform the unlocking and locking actions. This removes the limitation on the forward and reverse rotation angles of the lock cylinder lever 20, allowing the lock cylinder lever 20 to achieve large-angle rotation, making unlocking and locking more effortless.

[0026] A first rotating member 42 is hinged to the first lever plate 41, and a second rotating member 52 is hinged to the second lever plate 51. The linkage assembly also includes a tray linkage member 33 that is linked and cooperates with the main tray plate 32. The tray linkage member 33 is provided with a insert 331. The main tray plate 32 has a first slot that cooperates with the insert 331, and the second rotating member 52 has a second slot that cooperates with the insert 331. The tray linkage member 33 is also provided with a force-bearing pin 332. The first rotating member 42 is provided with a first force-applying arm 421 that cooperates with the force-bearing pin 332. The first rotating member 42 includes a first rotating arm. The first rotating part has a first force-applying arm 421 protruding from the periphery of the first rotating part; the periphery of the first rotating part also has a first hinge arm 422 that is rotatably hinged to the first lever plate 41; a first rotating hole is opened in the center of the first rotating part; the pallet linkage 33 has a first end angle and a second end angle, the insert 331 and the force-receiving pin 332 are both located at the first end angle, and a second rotating hole is opened at the second end angle; a pin 11 is fixed on the lock housing 10, and the pin 11 passes through the first rotating hole and the second rotating hole, and the first rotating part 42 and the pallet linkage 33 both rotate around the pin 11 as the rotation center. When the lock cylinder dial 20 rotates forward, the first dial plate 41 moves under force, driving the first rotating component 42 to rotate. The first force-applying arm 421 of the first rotating component 42 applies force to the force-receiving pin 332 of the support plate linkage component 33, causing the support plate linkage component 33 to swing, driving the main support plate 32 and the main lock tongue 31 to retract, thus unlocking. When the lock cylinder dial rotates in reverse, the second dial plate 51 moves under force, driving the second rotating component 52 to rotate. The second slot of the second rotating component 52 engages with the insert 331 of the support plate linkage component 33, causing the support plate linkage component 33 to swing, driving the main support plate 32 and the main lock tongue 31 to extend outward, thus locking. Both rotating components are linked with the main support plate 32 through the support plate linkage component 33, thereby completing the unlocking and locking actions. The structure is compact and the cooperation is reliable.

[0027] like Figure 5 , Figure 6As shown, the latch assembly also includes a beveled latch 61 and a support rod 62 fixed on the beveled latch 61. The lock housing 10 is also equipped with a handle deflector 80 and a handle linkage wheel 91 mounted on the handle shaft 70. The handle deflector 80 includes a first main wheel that engages and disengages with the handle shaft 70, and a paddle 81 and a linkage plate 82 protruding from the periphery of the first main wheel. The paddle 81 extends toward the drag bar and engages with a baffle at the bottom of the drag bar. When the handle shaft 70 rotates clockwise, it drives the handle deflector 80 to rotate. The paddle 81, in conjunction with the baffle, drives the support rod 62 and the beveled latch. 61 moves down, causing the oblique tongue 61 to retract; the linkage plate 82 is provided with an arc-shaped groove 821, and the first lever plate 41 is formed with a linkage pin 412 that cooperates with the linkage plate 82. The linkage pin 412 passes through the tail end of the arc-shaped groove 821. When the first lever plate 41 performs the unlocking action, it will push the handle lever wheel 80 to rotate to pull back the oblique tongue 61. The arc-shaped groove 821 can make way for the linkage pin 412, and only cooperate when cooperation is needed, so as to avoid the first lever plate 41 from being passively displaced when the handle lever wheel 80 rotates actively.

[0028] The handle linkage wheel 91 includes a second main body wheel that engages and disengages with the handle shaft 70, and a swing arm 911 protruding from the periphery of the second main body wheel. A handle linkage plate 92 is provided between the handle linkage wheel 91 and the second rotating member 52 to realize the linkage between the handle and the latch plate. The handle linkage plate 92 includes a first linkage arm 921 and a second linkage arm 922. The connection position of the first linkage arm 921 and the second linkage arm 922 is at an obtuse angle. The end of the first linkage arm 921 is hinged to the swing arm 911, and the end of the second linkage arm 922 is hinged to the second rotating member 52. The linkage wheel and the linkage plate realize the linkage between the handle shaft 70 and the main latch assembly, and the locking and unlocking are realized through the handle shaft 70.

[0029] This utility model optimizes the structure and coordination of the linkage components, thereby removing the limitation on the forward and reverse rotation angles of the lock cylinder dial 20. The lock cylinder dial 20 can achieve large-angle rotation, making unlocking and locking more effortless. The structure of each linkage component is reasonably designed and the coordination is reliable.

[0030] It should be understood that in the claims and description of this utility model, all instances of "comprising..." should be understood as having an open-ended meaning, that is, equivalent to "at least comprising...", and should not be understood as having a closed-ended meaning, that is, its meaning should not be understood as "only comprising...". The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0031] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should be included within the protection scope of this utility model.

Claims

1. A labor-saving lock, comprising a lock housing, and a lock cylinder deflector, a lock tongue assembly, and a linkage assembly assembled within the lock housing; characterized in that, The latch assembly includes a main support plate and a main latch mounted on top of the main support plate; the linkage assembly includes a first lever for performing the unlocking action and a second lever for performing the locking action. The first lever has a first force-bearing structure that cooperates with the lock cylinder wheel, and the second lever has a second force-bearing structure that cooperates with the lock cylinder wheel; a first rotating member is hinged to the first lever, and a second rotating member is hinged to the second lever; the linkage assembly also includes a support plate linkage member that is linked to the main support plate. The support plate linkage member has an insert, the main support plate has a first slot that cooperates with the insert, and the second rotating member has a second slot that cooperates with the insert; the support plate linkage member also has a protruding force-bearing pin, and the first rotating member has a first force-applying arm that cooperates with the force-bearing pin.

2. The labor-saving lock according to claim 1, characterized in that, The lock cylinder dial is provided with a dial block, the first force-bearing structure is located on the forward rotation trajectory of the dial block, and the second force-bearing structure is located on the reverse rotation trajectory of the dial block.

3. The labor-saving lock according to claim 2, characterized in that, The first and second levers are respectively disposed on both sides of the lock cylinder lever. The first force-bearing structure is a first force-bearing piece formed at the end of the first lever, which extends toward the lock cylinder lever. The second force-bearing structure is a second force-bearing piece vertically disposed at the end of the second lever.

4. The labor-saving lock according to claim 3, characterized in that, The first rotating component includes a first rotating part, and the first force-applying arm protrudes from the periphery of the first rotating part; the periphery of the first rotating part also has a first hinge arm that is rotatably hinged to the first lever plate; a first rotating hole is formed in the center of the first rotating part.

5. A labor-saving lock according to claim 4, characterized in that, The pallet linkage has a first end corner and a second end corner. The insert and the force-bearing pin are both located at the first end corner, and a second rotating hole is provided at the second end corner.

6. A labor-saving lock according to claim 5, characterized in that, A pin is fixed on the lock housing. The pin passes through the first rotating hole and the second rotating hole. The first rotating component and the support plate linkage component both rotate around the pin as the rotation center.

7. A labor-saving lock according to any one of claims 1-6, characterized in that, The latch assembly also includes a slanted latch and a support rod fixed on the slanted latch; the lock housing is also equipped with a handle deflector and a handle linkage wheel fitted on the handle shaft; the handle deflector includes a first main wheel that engages with the handle shaft, and a paddle and linkage plate protruding from the periphery of the first main wheel, the paddle extending toward the drag bar and engaging with a baffle at the bottom of the drag bar.

8. A labor-saving lock according to claim 7, characterized in that, The linkage plate has an arc-shaped groove, and the first dial plate has a linkage pin that cooperates with the linkage plate. The linkage pin passes through the end of the arc-shaped groove.

9. A labor-saving lock according to claim 8, characterized in that, The handle linkage wheel includes a second main body wheel that engages with the handle shaft, and a swing arm protruding from the periphery of the second main body wheel. A handle linkage plate is provided between the handle linkage wheel and the second rotating component to realize the linkage between the handle and the lock tongue support plate.

10. A labor-saving lock according to claim 9, characterized in that, The handle linkage plate includes a first linkage arm and a second linkage arm. The connection between the first linkage arm and the second linkage arm is at an obtuse angle. The end of the first linkage arm is hinged to the swing arm, and the end of the second linkage arm is hinged to the second rotating member.

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