CN215056167U

CN215056167U - Transmission mechanism for indoor door lock

Info

Publication number: CN215056167U
Application number: CN202120903359.5U
Authority: CN
Inventors: 陆正军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-12-07
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a drive mechanism for indoor lock, its technical scheme main points are including first thumb wheel, second thumb wheel, oblique tongue, square tongue, spacing commentaries on classics piece, spacing bull stick, are provided with a plurality of teeth that can intermeshing on first thumb wheel and the second thumb wheel respectively. The utility model has the advantages that the transmission is more accurate due to the mutual meshing transmission of the teeth on the first dial wheel and the second dial wheel, so that the oblique tongue and the square tongue can be driven to pop up or contract to move quickly, namely, the lifting, locking and pressing-down unlocking of the indoor door can be completed through the gear structure; compared with a sheet structure, the gear structure is more durable and is less influenced by abrasion; tooth intermeshing has formed the locking effect of certain degree for the spring bolt subassembly removes the back that targets in place, and difficult emergence is rocked, has strengthened the security of lock body.

Description

Transmission mechanism for indoor door lock

Technical Field

The utility model relates to an indoor lock technical field, more specifically say, it relates to a drive mechanism for indoor lock.

Background

The lock body of current indoor lock mainly includes spring bolt subassembly, trigger mechanism, and wherein, trigger mechanism mainly indicates to lift to lock or push down to unblank, and its mostly adopts lamellar structure to dial the piece and carry out the transmission, and this lamellar is dialled a piece and is easily produced, the equipment, but receives wearing and tearing easily and produce in permanent use and skid for transmission efficiency, precision reduce, and cause the unable normal use of indoor lock even.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a drive mechanism for indoor lock, this drive mechanism is used gear structure to indoor lock field for the first time, can further improve the durability of each parts driven accuracy and lock body in the lock body.

In order to achieve the above purpose, the utility model provides a following technical scheme: a transmission mechanism for an indoor door lock is arranged on a shell of a lock body and comprises a first shifting wheel and a second shifting wheel which are in transmission connection with a lock tongue component, wherein the lock tongue component comprises an oblique tongue and a square tongue which are connected to the shell in a sliding mode, a plurality of teeth which can be meshed with each other are arranged on the first shifting wheel and the second shifting wheel respectively, the first shifting wheel is in transmission connection with the oblique tongue, the second shifting wheel is in transmission connection with the square tongue, and a central shaft hole for an external rotating part to be embedded and apply force to rotate is formed in the first shifting wheel;

when the external rotating piece is embedded into the central shaft hole and rotates outwards from the shell, the first shifting wheel rotates outwards from the shell, the latch bolt pops out of the shell, the first shifting wheel drives the second shifting wheel to rotate inwards from the shell, and the latch bolt pops out of the shell to realize locking;

when the external transmission part is embedded into the central shaft hole and rotates towards the shell, the first shifting wheel rotates towards the inner direction of the shell, the latch bolt contracts towards the inner direction of the shell, the first shifting wheel drives the second shifting wheel to rotate towards the outer direction of the shell, and the latch bolt contracts towards the inner direction of the shell to realize unlocking.

Furthermore, a limit rotating block for driving the latch bolt to slide is arranged on the first thumb wheel, an adaptive hole communicated with the central shaft hole is arranged on the limit rotating block, the outer side wall of the central shaft hole is provided with a plurality of convex edges in a surrounding manner, the inner side wall of the adaptive hole is provided with an embedded groove for accommodating the convex edges, one side surface of each convex edge is abutted against one side wall of the embedded groove, a gap is reserved between the other side surface of each convex edge and the other side wall of the embedded groove, the latch bolt is connected with a return spring, a positioning block is arranged on the shell, the spring is positioned between the latch bolt and the positioning block, the return spring drives the latch bolt to pop out of the shell under a natural state, when the convex edge rotates towards the direction of abutting with the caulking groove, the reset spring deforms, the latch bolt contracts towards the inside of the shell, when the convex edge rotates reversely and is abutted against the caulking groove, the reset spring resets to drive the latch bolt to pop out of the shell.

Further, including being used for driving the butt portion that the latch bolt slided in to the casing on the spacing commentaries on classics piece, latch bolt fixedly connected with is used for driving the connecting rod of its removal, the other end of connecting rod is connected with the limiting plate that is used for supplying the transmission of butt portion to connect, the locating piece is located between latch bolt and the limiting plate, be provided with the slide opening that supplies the connecting rod axial to slide and connect on the locating piece, the internal diameter size of slide opening and the external diameter size looks adaptation of connecting rod, reset spring cover establishes on the connecting rod and is located between latch bolt and the locating piece, when butt portion rotates to the limiting plate direction, the latch bolt contracts in to the casing, when butt portion rotates to the locating piece direction, the latch bolt pops out outward to the casing.

Furthermore, fixedly connected with transfer line, first traveller on the second thumb wheel, the transfer line is kept away from one of first traveller and is served and be provided with the second traveller, square tongue fixedly connected with is used for driving its movable plate that removes, be provided with respectively on the movable plate and supply the first spout of first traveller slip connection, supply the second chute of second traveller slip connection, first spout slope sets up, second spout level sets up, first thumb wheel drives the second thumb wheel pivoted in-process, first traveller slides along the rotation direction of second thumb wheel at first spout, the second traveller slides along the moving direction reverse of square tongue in the second spout.

Furthermore, the first sliding column and the second sliding column are fixedly connected with limiting rotating rods, two ends of each limiting rotating rod are respectively connected with the first sliding column and the second sliding column, and the movable plate is located between the limiting rotating rods and the transmission rod.

Further, the width dimension of the moving plate is matched with the height dimension of the square tongue.

Furthermore, the second thumb wheel is provided with a protruding part, the protruding part and the transmission rod are respectively arranged on two opposite sides of the second thumb wheel, the shell is provided with a positioning column and a torque spring, one end of the torque spring is fixedly connected to the protruding part, the other end of the torque spring is connected to the positioning column, and the torque spring jacks the protruding part under a natural state to drive the square tongue to contract into the shell.

Furthermore, a plurality of convex edges are arranged on the outer side wall of each tooth, the convex edges are vertically arranged and/or horizontally arranged respectively, and in the process that the first shifting wheel is meshed with the second shifting wheel, the convex edges on the teeth of the first shifting wheel are embedded with the convex edges on the teeth of the second shifting wheel.

To sum up, the utility model discloses following beneficial effect has: the first shifting wheel and the second shifting wheel are meshed with each other for transmission, so that the device is more accurate and is convenient for quickly driving the latch bolt and the dead bolt to pop up or retract, namely the indoor door is lifted up, locked and pressed down to be unlocked through a gear structure; compared with a sheet structure, the gear structure is more durable and is less influenced by abrasion; tooth intermeshing has formed the locking effect of certain degree for the spring bolt subassembly removes the back that targets in place, and difficult emergence is rocked, has strengthened the security of lock body.

Drawings

FIG. 1 is a schematic perspective view of an indoor door lock;

fig. 2 is a schematic structural view of a gear structure.

Reference numerals: 1. a housing; 11. a limiting rotating block; 111. an abutting portion; 112. an adapter hole; 113. caulking grooves; 12. a limiting rotating rod; 121. a first traveler; 122. a second strut; 13. positioning blocks; 14. a return spring; 15. a positioning column; 16. a torque spring; 2. a latch bolt assembly; 21. a latch bolt; 211. a connecting rod; 212. a limiting plate; 22. a square tongue; 221. moving the plate; 222. a first chute; 223. a second chute; 3. a first thumb wheel; 31. a central shaft hole; 32. a convex edge; 4. a second thumb wheel; 41. a transmission rod; 42. a protrusion; 5. and (4) teeth.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1-2, a transmission mechanism for an indoor door lock is arranged on a housing 1 of a lock body, and comprises a first thumb wheel 3 and a second thumb wheel 4 which are in transmission connection with a bolt assembly 2, wherein the bolt assembly 2 comprises an oblique bolt 21 and a square bolt 22 which are connected to the housing 1 in a sliding manner, a plurality of teeth 5 which can be meshed with each other are respectively arranged on the first thumb wheel 3 and the second thumb wheel 4, the first thumb wheel 3 is in transmission connection with the oblique bolt 21, the second thumb wheel 4 is in transmission connection with the square bolt 22, and a central shaft hole 31 for allowing an external rotating part to be embedded into and then to apply force and rotate is arranged on the first thumb wheel 3.

The first thumb wheel 3 and the second thumb wheel 4 are adopted to realize the mutual meshing transmission of the teeth 5, so that the device is more accurate, and is convenient for quickly driving the latch bolt 21 and the square bolt 22 to pop up or retract and move, namely, the indoor door lock is lifted up, locked and pressed down to unlock through a gear structure. The lock state is a state in which the latch bolt 21 and the latch bolt 22 are ejected to the outside of the housing 1, and the unlock state is a state in which the latch bolt 21 and the latch bolt 22 are retracted into the housing 1. The external rotating part is also an external force, particularly can be a handle part of an indoor door lock, and can drive the first shifting wheel 3 and the second shifting wheel 4 to perform gear transmission through rotating the handle, so that the limiting rotating block 11 and the limiting rotating rod 12 are driven to complete the locking and unlocking process.

It should be noted that the external rotating member inserted into the central shaft hole 31 is mainly a power source for transmission, and the lifting, locking and pressing-down unlocking are all listed steering schemes, and not specifically the steering is unlocking, and the steering is locking, which can be flexibly applied in specific implementation.

In addition, there are many advantages to using a gear structure in an indoor door lock: compared with a sheet structure, the gear structure is more durable and is less influenced by abrasion; tooth 5 intermeshing has formed the locking effect of certain degree for bolt assembly 2 removes the back that targets in place, and difficult emergence is rocked, has strengthened the security of lock body.

When the external rotating piece is embedded into the central shaft hole 31 and rotates towards the outside of the shell 1, the first thumb wheel 3 rotates towards the outside of the shell 1, the latch bolt 21 pops out of the shell 1, the first thumb wheel 3 drives the second thumb wheel 4 to rotate towards the inside of the shell 1, and the latch bolt 22 pops out of the shell 1 to realize locking;

when the external transmission member is inserted into the central shaft hole 31 and rotates towards the inside of the shell 1, the first thumb wheel 3 rotates towards the inside of the shell 1, the latch bolt 21 contracts towards the inside of the shell 1, the first thumb wheel 3 drives the second thumb wheel 4 to rotate towards the outside of the shell 1, and the latch bolt 22 contracts towards the inside of the shell 1 to realize unlocking.

The two cooperating states refer to a locked state and an unlocked state of the indoor door lock, in the locked state, when the external rotating piece is inserted into the central shaft hole 31 and rotates counterclockwise, the square tongue 22 is driven to pop out of the shell 1, and the oblique tongue 21 is in a natural pop-out state, in the unlocked state, when the external rotating piece is inserted into the central shaft hole 31 and rotates clockwise, the oblique tongue 21 is driven to retract into the shell 1, and the square tongue 22 is driven to retract into the shell 1.

In the unlocked state, there is a case where the square bolt 22 is ejected for unlocking when the door is closed, and the unlocking in this case is still performed by rotating the central shaft hole 31 clockwise, but only the latch bolt 21 is retracted into the housing 1, and the square bolt 22 is in an initial state where it is not ejected.

The first thumb wheel 3 is provided with a limiting rotating block 11 for driving the latch bolt 21 to slide, the limiting rotating block 11 is provided with an adapting hole 112 communicated with the central shaft hole 31, the outer side wall of the central shaft hole 31 is provided with a plurality of convex edges 32 in a surrounding manner, the inner side wall of the adapting hole 112 is provided with an embedding groove 113 for accommodating the convex edges 32, one side surface of each convex edge 32 is abutted against one side wall of the embedding groove 113, a gap is reserved between the other side surface and the other side wall of the embedding groove 113, the latch bolt 21 is connected with a return spring 14, the shell 1 is provided with a positioning block 13, the spring is positioned between the latch bolt 21 and the positioning block 13, the return spring 14 drives the latch bolt 21 to pop out of the shell 1 in a natural state, when the protruding edge 32 rotates in the direction of abutting the recessed groove 113, the return spring 14 is deformed, the latch 21 retracts into the housing 1, when the flange 32 rotates in the opposite direction to the direction of abutment with the insertion groove 113, the return spring 14 returns to drive the latch bolt 21 to eject the housing 1.

The width dimension of caulking groove 113 is greater than the width dimension of protruding edge 32, just makes spacing rotor 11 can take place the rotation of certain degree with first thumb wheel 3, and this rotation amplitude cooperation reset spring 14's elasticity that resets just makes to drive latch bolt 21 under reset spring 14 natural state and be in the state of popping out casing 1, and such benefit is the lock body of being convenient for when breaking away from external force, and automatic locking can be realized to latch bolt 21, and the condition of forgetting to lock the door when avoiding closing the door appears.

The convex edge 32 and the caulking groove 113 can be arranged into prismatic structures, so that the transmission stability of the convex edge 32 and the caulking groove 113 is enhanced, and the slip is avoided, so that the external rotating part is more labor-saving when being embedded into the adaptive hole 112 for rotation.

The limiting rotating block 11 comprises an abutting portion 111 for driving the latch bolt 21 to slide towards the inside of the housing 1, the latch bolt 21 is fixedly connected with a connecting rod 211 for driving the latch bolt to move, the other end of the connecting rod 211 is connected with a limiting plate 212 for driving the abutting portion 111 to be connected in a transmission mode, the positioning block 13 is located between the latch bolt 21 and the limiting plate 212, the positioning block 13 is provided with a sliding hole for axial sliding connection of the connecting rod 211, the inner diameter size of the sliding hole is matched with the outer diameter size of the connecting rod 211, the reset spring 14 is sleeved on the connecting rod 211 and located between the latch bolt 21 and the positioning block 13, when the abutting portion 111 rotates towards the direction of the limiting plate 212, the latch bolt 21 contracts towards the inside of the housing 1, and when the abutting portion 111 rotates towards the direction of the positioning block 13, the latch bolt 21 pops out of the housing 1.

The fitting means that the latch 21 does not fall off from the positioning block 13 during the sliding process, and the arrangement order relationship among the return spring 14, the positioning block 13, the abutting portion 111, and the limiting plate 212 is not changed.

The second thumb wheel 4 is fixedly connected with a transmission rod 41 and a first sliding column 121, one end of the transmission rod 41, which is far away from the first sliding column 121, is provided with a second sliding column 122, the square tongue 22 is fixedly connected with a moving plate 221 for driving the square tongue 22 to move, the moving plate 221 is respectively provided with a first sliding chute 222 for the sliding connection of the first sliding column 121 and a second sliding chute 223 for the sliding connection of the second sliding column 122, the first sliding chute 222 is obliquely arranged, the second sliding chute 223 is horizontally arranged, in the process that the first thumb wheel 3 drives the second thumb wheel 4 to rotate, the first sliding column 121 slides in the first sliding chute 222 along the rotating direction of the second thumb wheel 4, and the second sliding column 122 slides in the second sliding chute 223 in the reverse direction along the moving direction of the square tongue 22.

The first sliding column 121, the second sliding column 122, the first sliding chute 222 and the second sliding chute 223 are matched and slide, and are realized by that the first dial wheel 3 drives the second dial wheel 4 to rotate and the second dial wheel 4 drives the limit rotating rod 12 to rotate, and the fixed size of the limit rotating rod 12 can further ensure that the ejection and retraction states of the square bolt 22 are all clear and in place.

The first sliding column 121 and the second sliding column 122 are fixedly connected with a limiting rotating rod 12, two ends of the limiting rotating rod 12 are respectively connected with the first sliding column 121 and the second sliding column 122, and the moving plate 221 is located between the limiting rotating rod 12 and the transmission rod 41. The limiting rotary rod 12 is arranged to further form clamping on the moving plate 221 with the transmission rod 41, so that the strength of the sliding structure of the dead bolt 22 and the stability of sliding are further enhanced.

The square tongue 22 is used for locking an indoor door reversely, needs to be firmer, the volume of the square tongue 22 is generally larger than that of the latch bolt 21, the moving plate 221 is adopted to drive the square tongue 22 to move, the width size of the moving plate 221 is further arranged to be matched with the height size of the square tongue 22, and accordingly the pushing force applied to the square tongue 22 is more uniform and wider in range.

The second thumb wheel 4 is provided with a protruding portion 42, the protruding portion 42 and the transmission rod 41 are respectively arranged on two opposite sides of the second thumb wheel 4, the housing 1 is provided with a positioning column 15 and a torque spring 16, one end of the torque spring 16 is fixedly connected to the protruding portion 42, the other end of the torque spring is connected to the positioning column 15, and the torque spring 16 lifts the protruding portion 42 in a natural state so as to drive the square tongue 22 to retract into the housing 1.

The torque spring 16 is configured to provide an toggle force to allow the outer rotor to more clearly sense the reaction force from the torque spring 16 when rotating in the fitting hole 112, so that the state of the square tongue 22 can be more clearly understood by the user; on the other hand, the resilience of the torque spring 16 can be matched with the steering force of the external rotating part, so that the resilience of the square tongue 22 is smoother and is easy to operate.

The lateral wall of the teeth 5 is provided with a plurality of convex edges which are vertically arranged and/or horizontally arranged respectively, and in the process that the first thumb wheel 3 is meshed with the second thumb wheel 4, the convex edges on the teeth 5 of the first thumb wheel 3 are embedded with the convex edges on the teeth 5 of the second thumb wheel 4.

The arrangement of the convex edges is a measure for further enhancing the transmission friction force between the first thumb wheel 3 and the second thumb wheel 4, and the vertical arrangement and the horizontal arrangement of the convex edges limit the potential risk of deviation between the first thumb wheel 3 and the second thumb wheel 4 from the transverse direction and the axial direction, so that the transmission stability between the first thumb wheel 3 and the second thumb wheel 4 is further ensured.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a drive mechanism for indoor lock, sets up on casing (1) of lock body, characterized by: the automatic spring bolt turning device comprises a first shifting wheel (3) and a second shifting wheel (4) which are in transmission connection with a spring bolt component (2), wherein the spring bolt component (2) comprises an oblique bolt (21) and a square bolt (22) which are connected to a shell (1) in a sliding mode, a plurality of teeth (5) which can be meshed with each other are arranged on the first shifting wheel (3) and the second shifting wheel (4) respectively, the first shifting wheel (3) is in transmission connection with the oblique bolt (21), the second shifting wheel (4) is in transmission connection with the square bolt (22), and a central shaft hole (31) for an external rotating part to be embedded into and then to apply force to rotate is formed in the first shifting wheel (3);

when the external rotating piece is embedded into the central shaft hole (31) and rotates towards the outside of the shell (1), the first shifting wheel (3) rotates towards the outside of the shell (1), the oblique tongue (21) pops out of the shell (1), the first shifting wheel (3) drives the second shifting wheel (4) to rotate towards the inside of the shell (1), and the square tongue (22) pops out of the shell (1) to realize locking;

when the external transmission member is embedded into the central shaft hole (31) and rotates towards the shell (1), the first shifting wheel (3) rotates towards the inner direction of the shell (1), the latch bolt (21) retracts towards the inner direction of the shell (1), the first shifting wheel (3) drives the second shifting wheel (4) to rotate towards the outer direction of the shell (1), and the square bolt (22) retracts towards the inner direction of the shell (1) to realize unlocking.

2. The transmission mechanism for an indoor door lock as claimed in claim 1, wherein: be provided with spacing commentaries on classics piece (11) that are used for driving latch bolt (21) to slide on first thumb wheel (3), be provided with adaptation hole (112) with central shaft hole (31) intercommunication on spacing commentaries on classics piece (11), around being provided with a plurality of protruding edges (32) on central shaft hole (31) the lateral wall, be provided with caulking groove (113) that are used for holding protruding edge (32) on the inside wall of adaptation hole (112), a side of each protruding edge (32) all with a lateral wall butt of caulking groove (113), leave the clearance between another side and caulking groove (113) another lateral wall, latch bolt (21) are connected with reset spring (14), be provided with locating piece (13) on casing (1), the spring is located between latch bolt (21) and locating piece (13), reset spring (14) drive latch bolt (21) under natural state and pop out casing (1), when protruding edge (32) rotate to with caulking groove (113) butt direction, the reset spring (14) deforms, the latch bolt (21) contracts towards the inside of the shell (1), and when the convex edge (32) rotates in the opposite direction of being abutted against the caulking groove (113), the reset spring (14) resets to drive the latch bolt (21) to pop out of the shell (1).

3. The transmission mechanism for the indoor door lock as claimed in claim 2, wherein: spacing commentaries on classics piece (11) are gone up including butt portion (111) that is used for driving latch bolt (21) and slides in to casing (1), latch bolt (21) fixedly connected with is used for driving connecting rod (211) that it removed, the other end of connecting rod (211) is connected with limiting plate (212) that are used for supplying butt portion (111) transmission to be connected, locating piece (13) are located between latch bolt (21) and limiting plate (212), be provided with the slide opening that supplies connecting rod (211) axial to slide to be connected on locating piece (13), the internal diameter size of slide opening and the external diameter size looks adaptation of connecting rod (211), reset spring (14) cover is established on connecting rod (211) and is located between latch bolt (21) and locating piece (13), when butt portion (111) rotate to limiting plate (212) direction, latch bolt (21) contract in to casing (1), butt portion (111) when rotating to locating piece (13) direction, the latch bolt (21) is ejected out of the shell (1).

4. The transmission mechanism for an indoor door lock as claimed in claim 1, wherein: a transmission rod (41) and a first sliding column (121) are fixedly connected to the second thumb wheel (4), a second sliding column (122) is arranged at one end of the transmission rod (41) far away from the first sliding column (121), the square tongue (22) is fixedly connected with a moving plate (221) for driving the square tongue to move, the moving plate (221) is respectively provided with a first sliding chute (222) for the sliding connection of the first sliding column (121) and a second sliding chute (223) for the sliding connection of the second sliding column (122), the first sliding groove (222) is obliquely arranged, the second sliding groove (223) is horizontally arranged, in the process that the first thumb wheel (3) drives the second thumb wheel (4) to rotate, the first sliding column (121) slides in the first sliding groove (222) along the rotating direction of the second thumb wheel (4), the second sliding column (122) slides in the second sliding groove (223) along the moving direction of the square bolt (22) in the opposite direction.

5. The transmission mechanism for an indoor door lock as claimed in claim 4, wherein: the first sliding column (121) and the second sliding column (122) are fixedly connected with limiting rotating rods (12), two ends of each limiting rotating rod (12) are connected with the first sliding column (121) and the second sliding column (122) respectively, and the moving plate (221) is located between each limiting rotating rod (12) and the corresponding transmission rod (41).

6. The transmission mechanism for an indoor door lock as claimed in claim 4, wherein: the width dimension of the moving plate (221) is matched with the height dimension of the dead bolt (22).

7. The transmission mechanism for an indoor door lock as claimed in claim 4, wherein: be provided with protruding portion (42) on second thumb wheel (4), protruding portion (42) set up the relative both sides in second thumb wheel (4) respectively with transfer line (41), be provided with reference column (15) and torque spring (16) on casing (1), the one end fixed connection of torque spring (16) is in protruding portion (42), and the other end is connected on reference column (15), thereby torque spring (16) jacking protruding portion (42) under natural state drive square tongue (22) and contract in casing (1).

8. The transmission mechanism for an indoor door lock as claimed in claim 1, wherein: the outer side wall of the teeth (5) is provided with a plurality of convex edges, the convex edges are vertically arranged and/or horizontally arranged respectively, and in the process that the first shifting wheel (3) is meshed with the second shifting wheel (4), the convex edges on the teeth (5) of the first shifting wheel (3) are embedded with the convex edges on the teeth (5) of the second shifting wheel (4).