CN216076698U

CN216076698U - Puzzle lock

Info

Publication number: CN216076698U
Application number: CN202121425460.0U
Authority: CN
Inventors: 夏勇
Original assignee: Foshan Baitewei Automobile Products Co ltd
Current assignee: Foshan Baitewei Automobile Products Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-03-18
Anticipated expiration: 2031-06-25

Abstract

The utility model relates to the technical field of coded locks, and discloses a coded lock which comprises a base and two lock tongues, wherein two sides of the base are respectively provided with a traction rope connected to the corresponding lock tongues, and the base is also provided with: the device comprises two pulling pieces, a handle, a control block, a locking structure and a transmission assembly, wherein one end of each pulling piece is rotatably arranged on the base, and the other end of each pulling piece is connected with one end of a traction rope; the handle can be rotatably installed; the control block is rotatably arranged on the base and is constructed to push the two pulling pieces to swing and pull the traction rope after swinging; the locking structure is used for keeping the rotation angle of the control block; the transmission component drives the control block to swing. The control block of the coded lock after unlocking is limited by the locking structure to keep the rotation angle, namely the unlocking positions of the two pulling pieces are kept, so that the unlocking state is kept, secondary unlocking is not needed in the whole door opening process, and the unlocking operation is simple and convenient.

Description

Puzzle lock

Technical Field

The utility model relates to the technical field of coded locks, in particular to a coded lock for a rolling door or a rolling shutter cover.

Background

The coded lock structurally installed on a roller shutter door, a roller shutter cover and the like generally comprises a base and a lock tongue, wherein the lock tongue is installed on two sides of a door body and is connected to the base through a traction rope, a knob in the base rotates to pull the traction rope when the door is unlocked, and the lock tongue is pulled out from a lock hole in a door frame to realize unlocking. Because this kind of lock relies on the haulage rope pulling spring bolt withdrawal, the haulage rope can't provide the thrust that pushes out the spring bolt, therefore the spring bolt generally is provided with elasticity return structure, relies on the resilience force that elasticity return structure provided to outwards pop out when not being pulled by the haulage rope to insert the lockhole and realize locking.

This type of trick lock among the prior art can't keep the tension of haulage rope after opening, and generally be equipped with the multiunit lockhole on the door frame and stop at different positions for rolling up the curtain door, when pulling the rolling up curtain door after the unblock and remove through other lockholes, the spring bolt can the auto-eject locking, and the user need twist once more and move the base, and secondary unblock leads to the operation comparatively complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a coded lock, and aims to solve the problems that a lock tongue cannot be kept in an unlocked state after the coded lock in the prior art is unlocked, and the operation is complex due to the need of secondary unlocking.

The utility model is realized in this way, and provides a coded lock, which comprises a base arranged on a door body and lock tongues positioned on two sides of the door body, wherein two sides of the base are respectively provided with a traction rope connected to the corresponding lock tongues, and the base is provided with:

one end of each pulling piece is rotatably arranged on the base, and the other end of each pulling piece is connected with one end of one traction rope;

a handle rotatably mounted to the base;

the control block is rotatably arranged on the base and is configured to push the two pulling pieces to swing along the direction of pulling the traction rope after swinging;

the locking structure is arranged between the control block and the two pulling pieces and used for keeping the rotation angle of the control block;

a transmission assembly configured to drive the control block to oscillate as the handle rotates.

Further, the locking structure includes:

the pushing part is arranged at the end part of the control block and is positioned between the two pulling pieces;

the buckling mechanism is arranged on the opposite side surfaces of the two pulling parts and is constructed in a self-locking state that the buckling mechanism and the pushing part cannot be separated when the two pulling parts are located at the complete unlocking position.

Further, the buckle mechanism comprises a first buckle arranged on one pulling piece and a second buckle arranged on the other pulling piece, the first buckle is in an inward concave shape, the second buckle is in an outward convex shape, and the tail end of the pushing part is in a shape that the pushing part is abutted by the second buckle after being placed into the first buckle and cannot be separated.

Furthermore, the two pulling pieces comprise a left pulling piece and a right pulling piece, the left pulling piece is positioned on one side close to the control block, and the first buckle is arranged on the left pulling piece.

Furthermore, the middle part of the control block is arranged on the base, the other end of the control block, which is opposite to the pushing part, is provided with an unlocking bolt, and the unlocking bolt extends out of the upper end of the base; the unlocking tongue is configured to be pushed to drive the pushing part to rotate so as to unlock the self-locking state when the upper end of the base contacts the upper door frame.

Furthermore, an unlocking knob is arranged on the control block, and the unlocking knob and the control block are coaxially fixed.

The lock core is provided with a password dial and retractable lock teeth, and the lock teeth are constructed to be pushed and retracted only when the password dial inputs a correct password; the handle has the rotatable formula and passes the pivot of base, the pivot end is equipped with rotatory piece, rotatory piece power coupling in transmission assembly, just lock tooth end butt one side of rotatory piece.

Furthermore, a wedge-shaped notch is formed in the rotating block, and a wedge-shaped head used for being inserted into and matched with the wedge-shaped notch is arranged at the tail end of the locking tooth.

Furthermore, a return spring for enabling the handle to return rotationally is arranged on the rotating shaft.

Furthermore, a password window used for exposing the password drive plate is arranged on the base, a dustproof cover used for covering or exposing the password window is movably arranged on the base, and a wear pad used for preventing wear is arranged between the dustproof cover and the base.

Compared with the prior art, when the coded lock is unlocked, after a correct code is input, a user twists the handle and drives the transmission assembly to output power to enable the control block to swing, and the control block swings and then pushes the two pulling pieces to swing and pulls the traction rope, so that the lock tongue is pulled to retract, and the lock with the door frame is released. The control block after the unlocking is limited by the locking structure to keep the rotation angle, namely, the unlocking positions of the two pulling parts are kept, so that the unlocking state is kept, the door body is pulled to be locked again through the plurality of stop positions (lock holes) arranged on the door frame, secondary unlocking is not needed in the whole door opening process, and the unlocking operation is simple and convenient.

Drawings

Fig. 1 is an overall schematic view of a combination lock and a door body according to an embodiment of the present invention;

fig. 2 is a schematic front structural diagram of a combination lock according to an embodiment of the present invention;

fig. 3 is a schematic back structural view of a combination lock according to an embodiment of the present invention;

fig. 4 is an exploded view of a combination lock according to an embodiment of the present invention;

FIG. 5 is a schematic view of a control block and a pulling member according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an exploded structure of a back portion of a combination lock according to an embodiment of the present invention.

1-coded lock, 11-base, 111-coded window, 112-dust cover, 1121-abrasion pad, 12-traction rope, 121-bolt, 13-handle, 131-rotating shaft, 132-rotating block 14-transmission assembly, 15-control block, 151-pushing part, 152-unlocking bolt, 153-unlocking knob, 16-pulling part, 161-left pulling part, 1611-first buckle, 162-right pulling part and 1621-second buckle; 16-lock core, 161-code dial, 162-lock teeth, 1621-wedge head; 2-door body, 21-upper door frame and 22-door frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The implementation of the present embodiment is described in detail below with reference to specific drawings.

As shown in fig. 1 to 6, the present embodiment provides a combination lock 1, which includes a base 11 installed on a door body 2 and locking tongues 121 located on two sides of the door body 2, wherein two sides of the base 11 are respectively provided with a pulling rope 12 connected to the corresponding locking tongues 121. The door body 2 itself can be rolled up with both sides sliding along the door frame 22. Two pulling parts 16, a handle 13, a control block 15 and a transmission assembly 14 are arranged on the base 11, and a locking structure is arranged between the control block 15 and the two pulling parts 16. One end of each pulling piece 16 is rotatably mounted on the base 11, the other end of each pulling piece is connected with one end of a traction rope 12, and the pulling pieces pull the traction ropes 12 after being stressed and rotated to realize unlocking. The handle 13 is rotatably mounted to the base 11, the control block 15 is rotatably mounted to the base 11, and the transmission assembly 14 is configured to drive the control block 15 to swing as the handle 13 rotates. After the control block 15 swings, the two pulling pieces 16 can be pushed to swing along the direction of pulling the traction rope 12 at the same time, and the locking structure is used for keeping the rotation angle of the control block 15. The structure of the transmission assembly 14 is not the key point of this embodiment, and the function is only to drive the control block 15 to swing after being stressed, and the function can be realized by combining various structures such as gears, cams, swinging members, and the like, and the specific implementation manner is not described in detail.

When unlocking (it is easy to understand that the coded lock is in this embodiment, the unlocking is performed on the premise that the correct code is already input), the user twists the handle 13, the handle 13 rotates to drive the transmission assembly 14, the transmission assembly 14 outputs power to drive the control block 15 to swing, the control block 15 swings to push the two pulling pieces 16 to swing and pull the pulling rope 12, and the lock tongue 121 at the other end of the pulling rope 12 is pulled to retract, so that the lock with the door frame 22 is released. Meanwhile, the control block 15 is limited by the locking structure to keep the rotation angle, that is, the unlocking positions of the two pulling pieces 16 are kept, so that the unlocking state is kept. Even if a plurality of stop positions (that is, lock holes corresponding to the lock tongues 121) are arranged on the door frame 22, the lock tongues 121 cannot automatically pop up on the premise that the locking structure is not released, so that the door body 2 can be directly pulled to pass through the plurality of stop positions, secondary unlocking is not needed, and the unlocking operation is simple and convenient.

Optionally, the locking structure in this embodiment includes a pushing portion 151 and a locking mechanism, wherein the pushing portion 151 is disposed at an end of the control block 15 and located between the two pulling members 16, and the locking mechanism is disposed on opposite sides of the two pulling members 16. The catch mechanism is configured to be in a self-locking state in which the catch mechanism cannot be disengaged from the pushing portion 151 when the two pulling members 16 are located at the fully unlocked position. That is, the latching mechanism is self-locked with the pushing portion 151 at a specific angle, thereby achieving the purpose of maintaining the angle of the control block 15. In other embodiments, the locking structure may also be implemented by other structures, for example, a limiting post that is controlled by a user to extend and retract is disposed on the base 11, and when the control block 15 swings to the unlocking position, the limiting post is controlled to extend out to clamp an end surface of the control block 15, so that the limiting post cannot rotate to return.

Optionally, the latching mechanism in this embodiment includes a first latch 1611 disposed on one pulling member 16 and a second latch 1621 disposed on the other pulling member 16, the first latch 1611 is in the shape of a concave notch, the second latch 1621 is in the shape of a convex, and the end of the pushing portion 151 is configured to be abutted by the second latch 1621 after being inserted into the first latch 1611, so as to be unable to be removed. When the end of the pushing part 151 swings and is placed into the first buckle 1611, the outer end of the pushing part pushes and continuously pushes the second buckle 1621 to swing, the specially designed first buckle 1611 and second buckle 1621 move towards the direction of approaching each other in the unlocking process, and in the limit position (unlocking state), the first buckle 1611 and second buckle 1621 jointly limit a cavity with the same cross section as that of the pushing part 151, so that the pushing part 151 is limited in the cavity to form a self-locking state. In other embodiments, the locking mechanism may be implemented by other structures, for example, the locking mechanism is two spring plungers respectively disposed at the ends of the two pulling members 16, two holes are disposed on the pushing portion 151, and the two spring plungers are just inserted into the holes respectively when in the unlocking position, so as to implement self-locking.

Optionally, the two pulling members 16 in this embodiment include a left pulling member 161 and a right pulling member 162, the left pulling member 161 is located at a side close to the control block 15, and the left pulling member 161 is provided with a first buckle 1611. In other words, during the unlocking action of the control block 15, the pushing portion 151 thereof gradually approaches the left pulling member 161, so that the inner side (left side) of the end can be inserted into the first catch 1611, and then the outer side (right side) is caught into the second catch 1621 and gradually enters the self-locking state.

Optionally, the middle of the control block 15 is installed on the base 11, the other end of the control block 15 opposite to the pushing portion 151 is provided with an unlocking tongue 152, the unlocking tongue 152 extends out of the upper end of the base 11, and the unlocking tongue 152 is configured such that when the upper end of the base 11 contacts the upper doorframe 2121, the unlocking tongue 152 is pushed to drive the pushing portion 151 to rotate so as to release the self-locking state. When the unlocking tongue 152 is triggered, the control block 15 swings in the opposite direction opposite to the unlocking direction, so that the pushing part 151 of the control block is in a self-locking state under the action of external force, the two pulling parts 16 are released, the pulling force of the traction rope 12 on the locking tongue 121 disappears, the control block pops outwards to lock, and therefore the self-locking state of the control block 15 is automatically released when the door body 2 is pulled to the top end conveniently, and locking is carried out.

Optionally, an unlocking knob 153 is arranged on the control block 15, the unlocking knob 153 is coaxially fixed with the control block 15, and when a person is mistakenly locked in the door, the person can turn the unlocking knob 153 by himself to drive the control block 15 to rotate, so that unlocking is achieved.

Optionally, the combination lock 1 further comprises a lock cylinder 16 mounted on the base 11, the lock cylinder 16 is provided with a combination dial 161 and retractable lock teeth 162, and the lock teeth 162 are configured to be pushed and retracted only when the correct combination is input by the combination dial 161; the handle 13 has a rotating shaft 131 rotatably passing through the base 11, the rotating shaft 131 has a rotating block 132 at the end, the rotating block 132 is power coupled to the transmission assembly 14, and the end of the locking tooth 162 abuts against one side of the rotating block 132. When the password is input incorrectly, the locking tooth 162 is limited and cannot be withdrawn, and the handle 13 is screwed at the moment, and the handle 13 cannot be screwed to rotate because the tail end of the rotating block 132 is clamped by the locking tooth 162; when the password is correctly input, the handle 13 is screwed to drive the rotating block 132 to rotate, and at the moment, the locking teeth 162 can be retracted after being stressed, so that the rotating block 132 can be smoothly driven to rotate, power is output to the transmission assembly 14, and then the control block 15 is driven to rotate, and the unlocking process is carried out.

Optionally, a wedge-shaped notch (not labeled) is formed on the rotating block 132, and a wedge-shaped head 1621 for inserting into and matching with the wedge-shaped notch is disposed at the end of the locking tooth 162. When the rotating block 132 rotates, the wedge-shaped notch and the inclined surface of the wedge-shaped head 1621 contact and apply force to push the wedge-shaped head 1621 away from the rotating block 132 along the axial direction, that is, to realize the retraction of the locking teeth 162. It is easily understood that when the rotary block 132 is rotated to a proper position, the wedge 1621 is inserted into the wedge gap after the latch 162 is ejected, and in a state where the latch 162 cannot be retracted, the wedge gap and the wedge 1621 are locked to each other, so that the rotary block 132 cannot be rotated.

Optionally, a return spring for returning the handle 13 by rotation is arranged on the rotating shaft 131, and the handle 13 returns automatically after being screwed, so that the appearance consistency is maintained, and meanwhile, the handle 13 is prevented from interfering with the outside in the process of sliding the door.

Optionally, a password window 111 for exposing the password dial 161 is formed on the base 11, a dust cap 112 for covering or exposing the password window 111 is movably mounted on the base 11, and a wear pad 1121 for preventing wear is disposed between the dust cap 112 and the base 11.

In summary, the combination lock 1 in the present embodiment includes, but is not limited to, the following technical advantages:

1. the bolt 121 can be kept after being unlocked, namely, the bolt can be smoothly opened to the bottom after being opened, a plurality of stopping points can be arranged at any position on the door frame 22 or the side slide rail, and the smooth operation of pulling the door body 2 is not influenced;

2. the coded lock 1 uses a 4-key coded lock disc to increase the reliability

3. The password setting code is changed on the coded lock 1 by using the dial code, the password can be changed without tools (under the condition of knowing the correct password), and the terminal client can conveniently change the password at any time to increase the safety and reliability.

4. An emergency opening function is provided, and the lock can be opened by the unlocking knob 153 internally if a person is mistakenly locked.

5. The door can be opened by using the minimum force after the large handle 13 is rotated to unlock the door, and the door is suitable for women, children and children.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a coded lock, is including installing in the base of a body and being located the spring bolt of a body both sides, the base both sides are equipped with respectively and are connected to the correspondence the haulage rope of spring bolt, its characterized in that, the base is equipped with:

a handle rotatably mounted to the base;

2. A combination lock according to claim 1, wherein the locking arrangement comprises:

3. The combination lock of claim 2, wherein the locking mechanism comprises a first locking member disposed on one of the pull members and a second locking member disposed on the other of the pull members, the first locking member being concave and the second locking member being convex, the pushing portion being shaped to be engaged by the second locking member after being received in the first locking member.

4. The combination lock of claim 3, wherein the two pulling members comprise a left pulling member and a right pulling member, the left pulling member is located at a side close to the control block, and the first buckle is disposed on the left pulling member.

5. The combination lock of claim 2, wherein the control block is mounted in the base at a middle portion thereof, and the other end of the control block opposite to the pushing portion is provided with an unlocking tongue extending out of an upper end of the base; the unlocking tongue is configured to be pushed to drive the pushing part to rotate so as to unlock the self-locking state when the upper end of the base contacts the upper door frame.

6. A combination lock according to any one of claims 1 to 5, wherein the control block is provided with an unlocking knob, the unlocking knob being fixed coaxially with the control block.

7. A combination lock according to any one of claims 1 to 5, further comprising a lock cylinder mounted on the base, the lock cylinder having combination dials and retractable lock teeth, the lock teeth being configured to be pushed and retracted only when the combination dials enter the correct combination; the handle has the rotatable formula and passes the pivot of base, the pivot end is equipped with rotatory piece, rotatory piece power coupling in transmission assembly, just lock tooth end butt one side of rotatory piece.

8. The combination lock of claim 7, wherein the rotating block is provided with a wedge-shaped notch, and the end of the locking tooth is provided with a wedge-shaped head for inserting into and matching with the wedge-shaped notch.

9. The combination lock of claim 7, wherein a return spring is provided on the shaft for returning the handle.

10. The combination lock of claim 7, wherein the base is provided with a combination window for exposing the combination dial, the base is movably provided with a dustproof cover for covering or exposing the combination window, and a wear pad for preventing wear is arranged between the dustproof cover and the base.