CN213744284U

CN213744284U - Lock with a locking mechanism

Info

Publication number: CN213744284U
Application number: CN202022319637.0U
Authority: CN
Inventors: 虞哲君
Original assignee: Angel Electronic Technology Co ltd
Current assignee: Angel Electronic Technology Co ltd
Priority date: 2020-10-17
Filing date: 2020-10-17
Publication date: 2021-07-20
Anticipated expiration: 2030-10-17

Abstract

The application relates to a lock, and belongs to the technical field of locks. The locking mechanism comprises a shell, a locking part rotationally connected in the shell and a driving assembly for limiting or driving the locking part to rotate, wherein the driving assembly comprises a driving block for driving the locking part to rotate, a transmission part, a first memory metal wire for pulling the driving block to rotate anticlockwise and a second memory metal wire for pulling the driving block to rotate clockwise, one end of the transmission part is connected with the locking part, the other end of the transmission part is connected with the driving block, one end of the first memory metal wire is connected with the driving block, the other end of the first memory metal wire is connected with the shell, one end of the second memory metal wire is connected with the driving block, the other end of the second memory metal wire is connected with the shell, the locking part has a locking state and an unlocking state, when the retaining member is in the locking state, the driving block limits the rotation of the retaining member, when the retaining member is in the unlocking state, the first memory metal wire is electrified to be contracted and drives the driving block to rotate, and the rotating driving block drives the retaining member to rotate through the transmission member.

Description

Lock with a locking mechanism

Technical Field

The application relates to the technical field of locks, in particular to a lock.

Background

A memory metal is an alloy that has the function of "remembering" a shape. After plastic deformation of the memory metal occurs in a certain temperature range, the original macroscopic shape can be recovered in another temperature range.

In the related technology, the lock is a mechanical blocking mechanism, the unlocking process is completed by depending on mechanical action, and the unlocking action is realized by outputting an electric signal to drive an electromagnet or a small motor to open a bolt so as to complete the unlocking process. Because the traditional electronic lock has a complex structure, the manufacturing and electricity consumption costs of the electronic lock are high, and therefore, in the related art, the unlocking process is realized through the memory metal.

The lock with the memory metal comprises the memory metal, a limiting structure connected with the memory metal and a locking piece matched with the limiting structure for use, wherein when the lock is locked, the limiting structure and the locking piece interact, when the lock needs to be unlocked, the memory metal is powered on, the memory metal contracts, the memory metal after contraction pulls the limiting structure, the limiting structure is separated from the locking piece, and the lock is opened.

According to the related technology, because the contraction of the memory metal is related to the temperature, when the ambient temperature reaches the temperature of the memory metal when the memory metal contracts, the contracted memory metal pulls the limiting structure, so that the lockset is automatically opened.

SUMMERY OF THE UTILITY MODEL

In order to prevent the lock from being automatically opened due to the rise of the ambient temperature, the application provides the lock.

The application provides a lock adopts following technical scheme:

a lock, including the casing, rotate connect in retaining member and restriction or drive in the casing retaining member pivoted drive assembly, drive assembly is including being used for the drive retaining member pivoted drive block, driving medium, being used for the pulling the first memory wire of drive block anticlockwise rotation and being used for the pulling the clockwise pivoted second memory wire of drive block, the one end of driving medium with the retaining member is connected, and the other end is connected with the drive block, the one end and the drive block of first memory wire are connected, and the other end is connected with the casing, the one end and the drive block of second memory wire are connected, and the other end is connected with the casing, the retaining member has locking state and unblock state, when the retaining member is in locking state, the drive block restriction the retaining member rotates, when the retaining member is in unblock state, the first memory metal wire is electrified and contracted to drive the driving block to rotate, and the rotating driving block drives the locking piece to rotate through the transmission piece.

Through adopting above-mentioned technical scheme, the retaining member has lock-out state and unblock state two kinds, when the retaining member is in lock-out state, the retaining member with treat that the locking body is connected, the drive block limits the rotation of retaining member, make the retaining member unable rotate, thereby make the retaining member and treat locking between the locking body, when the retaining member is in unlock state, first memory wire is circular telegram, first memory wire after the circular telegram generates heat and takes place the shrink, make first memory wire pulling drive block anticlockwise rotation, the drive block after the rotation passes through the driving medium and drives the retaining member rotation, make the retaining member with treat the separation of locking body, thereby make the retaining member unblock.

The shrinkage temperature of the first memory metal wire and the second memory metal wire can be adjusted according to actual conditions, in the actual use process, the shrinkage temperature of the first memory metal wire and the shrinkage temperature of the second memory metal wire can be the same or different, but when the environment of the lock is increased to abnormal high temperature (such as fire hazard), the first memory metal wire and the second memory metal wire both reach the shrinkage state, the first memory metal wire and the second memory metal wire are heated to shrink, and because the first memory metal wire and the second memory metal wire both pull the driving block to rotate and pull the driving block to rotate in different directions, the driving block cannot rotate, the locking member cannot be separated from an object to be locked, so that the lock cannot be automatically opened due to the increase of the environment temperature, and the anti-theft function is achieved.

Preferably, the driving block is provided with a first abutting surface, the locking member is provided with a second abutting surface, and when the locking member is in a locking state, the first abutting surface abuts against the second abutting surface.

Through adopting above-mentioned technical scheme, when the retaining member is in the locking state, first butt face and second butt face looks butt, through the effect of first butt face and second butt face, make the retaining member can not take place to rotate.

Preferably, the transmission part comprises an extension spring, one end of the extension spring is connected with the locking part, and the other end of the extension spring is connected with the driving block.

By adopting the technical scheme, when the locking piece is in a locking state, the locking piece and the driving block are connected together through the extension spring, so that the first abutting surface and the second abutting surface are stably abutted; after the driving block is pulled by the first memory metal wire and rotates anticlockwise, the driving block drives the locking piece to rotate through the extension spring, so that the locking piece is separated from an object to be locked, and the locking piece is unlocked.

Preferably, the driving medium still includes protruding first spliced pole of locating on the retaining member and protruding locating second spliced pole on the driving block, extension spring's one end with first spliced pole is connected, the other end with the second spliced pole is connected.

Through adopting above-mentioned technical scheme, extension spring's both ends are connected with first spliced pole and second spliced pole respectively, and first spliced pole protrusion in retaining member, second spliced pole protrusion in the drive block, make extension spring during operation can not take place to disturb with retaining member and drive block, make extension spring tensile or shrink more smoothly.

Preferably, the first memory wire is connected with one end of the driving block, and the second memory wire is connected with the other end of the driving block.

Through adopting above-mentioned technical scheme, first memory wire and second memory wire are connected with the both ends of drive block respectively, make things convenient for first memory wire pulling drive block anticlockwise rotation, make things convenient for second memory wire pulling drive block clockwise turning.

Preferably, the first memory wire and the second memory wire are located on the same side of the driving block.

By adopting the technical scheme, the first memory metal wire and the second memory metal wire are respectively connected with the two ends of the driving block, so that the first memory metal wire and the second memory metal wire are positioned at the same side of the driving block, and the first memory metal wire and the second memory metal wire can conveniently pull the driving block to rotate.

Preferably, the first memory metal wire and the second memory metal wire are both connected with the same end of the driving block, and the first memory metal wire and the second memory metal wire are respectively positioned at two sides of the driving block.

By adopting the technical scheme, the first memory metal wire and the second memory metal wire can also be connected with the same end of the driving block, and at the moment, the first memory metal wire and the second memory metal wire are respectively positioned at two sides of the driving block, so that the first memory metal wire pulls the driving block to rotate anticlockwise, and the second memory metal wire pulls the driving block to rotate clockwise.

Preferably, the housing is provided with a positioning block, and when the locking member is in a locked state, one end of the driving block, which is far away from the first abutting surface, abuts against the positioning block.

Through adopting above-mentioned technical scheme, when the retaining member is in the locking state, the one end and the retaining member looks butt of drive block, the drive block keep away from the one end and the locating piece looks butt of butt piece, through the effect of drive block and locating piece, prevent that the drive block from rotating too big, make the butt stable between first butt face and the second butt face.

Preferably, the driving block is provided with a yielding groove, and when the locking member is in an unlocking state, one end of the locking member is located in the yielding groove.

Through adopting above-mentioned technical scheme, when the retaining member is in the unblock state, the retaining member is kept away from the one end of treating the locking object and is located the inslot that steps down, make because extension spring's effect, the interval is less between driving block and the retaining member, consequently, when driving block and retaining block turned angle are too big, the one end of retaining member is located the inslot that steps down, make and do not take place to interfere between retaining member and the driving block, make retaining member and driving block homoenergetic take place to rotate, it is inseparabler to make between driving block and the retaining member in addition, it is littleer to occupy the space.

Preferably, the driving block is convexly provided with a poking rod, the end part of the poking rod penetrates out of the shell, and the shell is provided with a moving groove for moving the poking rod.

Through adopting above-mentioned technical scheme, because the drive block all is located the casing with the retaining member, the poker rod is connected with the drive block and is worn out the casing, and people drive the drive block rotation through removing the poker rod.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the environment of the lock rises to abnormal high temperature (such as fire), the first memory metal wire and the second memory metal wire reach a contracted state, the first memory metal wire and the second memory metal wire are both heated to contract, and the first memory metal wire and the second memory metal wire are pulled to pull the driving block to rotate and pull the driving block to rotate in different directions, so that the driving block cannot rotate, the locking member cannot be separated from an object to be locked, the lock cannot be automatically opened due to the rise of the environment temperature, and the anti-theft function is achieved;

2. when the locking piece is in a locking state, the first abutting surface abuts against the second abutting surface, and the locking piece cannot rotate under the action of the first abutting surface and the second abutting surface;

3. when the retaining member is in the locking state, the one end and the retaining member looks butt of drive block, the drive block keep away from the one end and the locating piece looks butt of butt piece, through the effect of drive block and locating piece, prevent that the drive block from rotating too big, make the butt stable between first butt face and the second butt face.

Drawings

Fig. 1 is a schematic view of the overall structure of a lock according to embodiment 1 of the present application.

Fig. 2 is an exploded view of the base and cover plate of embodiment 1 of the present application.

FIG. 3 is a schematic view of the structures of the lock member, the driving unit, and the transmission member in the base according to embodiment 1 of the present application.

FIG. 4 is a schematic view of the structure of the locking member, the driving assembly and the transmission member from another perspective in the base according to embodiment 1 of the present application.

Fig. 5 is a schematic structural view of the locker of embodiment 1 of the present application in an unlocked state.

Fig. 6 is a schematic structural view of a first memory wire and a second memory wire according to embodiment 2 of the present application.

Description of reference numerals: 1. a housing; 11. a base; 111. accommodating grooves; 112. a through hole; 113. positioning blocks; 12. a cover plate; 121. a moving groove; 2. a locking member; 21. a first rotating shaft; 22. a lock head; 221. a locking hole; 23. a second abutting surface; 3. a drive assembly; 31. a drive block; 311. a second rotating shaft; 312. a first abutting surface; 313. a yielding groove; 314. a poke rod; 32. a transmission member; 321. an extension spring; 322. a first connecting column; 323. a second connecting column; 33. a first memory wire; 34. a second memory wire.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a lock.

Example 1:

referring to fig. 1 and 2, the lock includes a housing 1, a locking member 2 rotatably coupled in the housing 1, the locking member 2 having a locked state and an unlocked state, and a driving assembly 3 for restricting or driving the locking member 2 to rotate, the driving assembly 3 being rotatably coupled in the housing 1.

Referring to fig. 2 and 3, the housing 1 includes a base 11 and a cover plate 12, the base 11 has a receiving cavity 111, the locking member 2 and the driving assembly 3 are both located in the receiving cavity, the cover plate 12 covers the receiving cavity 111, and the base 11 and the cover plate 12 are connected by screws.

Through-hole 112 has been seted up to base 11, wear to be equipped with in the through-hole 112 and wait to lock the object (not shown in the figure), retaining member 2 rotates through first pivot 21 and connects in the 111 tank bottoms of holding tank, retaining member 2's one end have with the tapered end 22 of waiting to lock the object and being connected, tapered end 22 has the locking hole 221 that supplies to wait to lock the object and wear to establish, when waiting to lock the object and wear to locate in the locking hole 221 of tapered end 22, retaining member 2 with wait to lock the object and be connected, retaining member 2 is in the lock-out condition this moment.

The driving assembly 3 comprises a driving block 31 for driving the locking member 2 to rotate, a transmission member 32, a first memory wire 33 for pulling the driving block 31 to rotate anticlockwise and a second memory wire 34 for pulling the driving block 31 to rotate clockwise, when the locking member 2 is in a locking state, the driving block 31 limits the locking member 2 to rotate, when the locking member 2 is in an unlocking state, the first memory wire 33 is electrified to contract and drive the driving block 31 to rotate, and the rotating driving block 31 drives the locking member 2 to rotate through the transmission member 32.

Referring to fig. 4 and 5, the driving block 31 is rotatably connected to the bottom of the receiving groove 111 through the second rotating shaft 311, one end of the driving block 31 has a first abutting surface 312, one side of the locking member 2 close to the driving block 31 has a second abutting surface 23, the second abutting surface 23 may be a groove wall formed after a groove is formed in the locking member 2, or may be an outer side surface of a protruding block of the locking member 2, the base 11 is convexly provided with a positioning block 113, the positioning block 113 is located on one side of the driving block 31 away from the locking member 2, when the locking member 2 is in a locked state, the first abutting surface 312 and the second abutting surface 23 abut against each other, at this time, one end of the driving block 31 away from the first abutting surface 312 abuts against the positioning block 113, and the driving block 31 limits the locking member 2 to rotate on the base 11 through the cooperation of the first abutting surface 312 and.

The one end terminal surface that retaining member 2 kept away from tapered end 22 is the cambered surface, and the driving block 31 has the groove of stepping down 313 near the side of retaining member 2, and the groove wall of stepping down 313 also is the cambered surface, and when retaining member 2 was in the unblock state, retaining member 2 had the tip entering of cambered surface and step down the groove 313 in, the cambered surface of retaining member 2 was laminated with the groove wall of stepping down 313 groove mutually.

Referring to fig. 2 and 3, the transmission member 32 includes an extension spring 321, a first connection post 322 and a second connection post 323, the first connection post 322 is convexly disposed on the side surface of the locking member 2 away from the bottom of the accommodating groove 111, the second connection post 323 is convexly disposed on the side surface of the driving block 31 away from the bottom of the accommodating groove 111, one end of the extension spring 321 is connected with the first connection post 322, and the other end is connected with the second connection post 323.

One end of the first memory wire 33 is connected with one end of the driving block 31 close to the first abutting surface 312 through a screw, the other end of the first memory wire 33 is connected with the shell 1 through a screw, one end of the second memory wire 34 is connected with one end of the driving block 31 far away from the first abutting surface 312 through a screw, the other end of the second memory wire 34 is connected with the shell 1 through a screw, the first memory wire 33 and the second memory wire 34 are both positioned on the same side of the driving block 31, and meanwhile, the first memory wire 33 and the second memory wire 34 are parallel to each other, so that the first memory wire 33 and the second memory wire 34 are more tightly distributed on the base 11.

Referring to fig. 1 and 2, the driving block 31 is convexly provided with a poking rod 314, an end of the poking rod 314 penetrates through the housing 1, the poking rod 314 is perpendicular to the surface of the driving block 31 away from the bottom of the accommodating groove 111, the cover plate 12 is provided with a moving groove 121 for the poking rod 314 to move, the moving groove 121 is arc-shaped, people move the poking rod 314 in the moving groove 121 by holding the end of the poking rod 314 protruding out of the housing 1, and the poking rod 314 drives the driving block 31 to rotate, so that the first abutting surface 312 is separated from the second abutting surface 23, and the locking member 2 is in an unlocking state.

The implementation principle of a lock in the embodiment of the application is as follows: when the locking member 2 is in the locking state, the first memory wire 33 is in the tightened state, the second memory wire 34 is in the loosened state, and at the moment, the object to be locked is connected with the lock head 22 of the locking member 2, when the lock needs to be unlocked, the first memory wire 33 is electrified, the electrified first memory wire 33 generates heat and starts to contract, the contracted first memory wire 33 pulls the driving block 31 to rotate along the spool (namely, anticlockwise) of the second rotating shaft 311, after the driving block 31 rotates, the first abutting surface 312 is separated from the second abutting surface 23, namely, the driving block 31 does not limit the rotation of the locking member 2 any more, and after the driving block 31 rotates, the locking member 2 is driven to rotate through the stretching spring 321, the rotated locking member 2 is separated from the object to be locked, and the lock is in the unlocking state.

The contraction temperature of the first memory wire 33 and the second memory wire 34 can be adjusted according to actual conditions, in the actual use process, the contraction temperature of the first memory wire 33 and the contraction temperature of the second memory wire 34 can be the same or different, but when the environment of the lock is raised to abnormal high temperature (such as fire), the first memory wire 33 and the second memory wire 34 both reach the contraction state, the first memory wire 33 and the second memory wire 34 are both heated to contract, and because the first memory wire 33 and the second memory wire 34 both pull the driving block 31 to rotate and pull the driving block 31 to rotate in different directions, the driving block 31 cannot rotate, and the locking member 2 cannot be separated from an object to be locked.

Example 2:

this embodiment is different from embodiment 1 only in the positions of the first memory wire 33 and the second memory wire 34.

Referring to fig. 6, the first memory wire 33 pulls the driving block 31 to rotate counterclockwise, and the second memory wire 34 pulls the driving block 31 to rotate clockwise. The first memory wire 33 and the second memory wire 34 are both connected to the same end of the driving block 31, and the first memory wire 33 and the second memory wire 34 are respectively located at two sides of the driving block 31.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A lock, characterized by: including casing (1), rotate connect in retaining member (2) and restriction or drive in casing (1) retaining member (2) pivoted drive assembly (3), drive assembly (3) are including being used for the drive retaining member (2) pivoted drive block (31), driving medium (32), be used for the pulling drive block (31) anticlockwise rotation's first memory wire (33) and be used for the pulling drive block (31) clockwise pivoted second memory wire (34), the one end of driving medium (32) with retaining member (2) are connected, and the other end is connected with drive block (31), the one end and the drive block (31) of first memory wire (33) are connected, and the other end is connected with casing (1), the one end and the drive block (31) of second memory wire (34) are connected, and the other end is connected with casing (1), retaining member (2) have lock-out state and unlock the state, when retaining member (2) are in lock-out state, drive block (31) restriction retaining member (2) rotate, when retaining member (2) are in unlock the state, first memory wire (33) circular telegram is contracted and is driven drive block (31) and rotate, and pivoted drive block (31) pass through driving medium (32) and drive retaining member (2) and rotate.

2. A lock according to claim 1, wherein: the driving block (31) is provided with a first abutting surface (312), the locking piece (2) is provided with a second abutting surface (23), and when the locking piece (2) is in a locking state, the first abutting surface (312) abuts against the second abutting surface (23).

3. A lock according to claim 1, wherein: the transmission piece (32) comprises an extension spring (321), one end of the extension spring (321) is connected with the locking piece (2), and the other end of the extension spring is connected with the driving block (31).

4. A lock according to claim 3, wherein: the driving medium (32) is still including protruding first spliced pole (322) of locating on retaining member (2) and protruding second spliced pole (323) of locating on drive block (31), the one end of extension spring (321) with first spliced pole (322) are connected, the other end with second spliced pole (323) are connected.

5. A lock according to claim 1, wherein: the first memory metal wire (33) is connected with one end of the driving block (31), and the second memory metal wire (34) is connected with the other end of the driving block (31).

6. A lock according to claim 5, wherein: the first memory wire (33) and the second memory wire (34) are located on the same side of the drive block (31).

7. A lock according to claim 1, wherein: the first memory metal wire (33) and the second memory metal wire (34) are connected with the same end of the driving block (31), and the first memory metal wire (33) and the second memory metal wire (34) are respectively located on two sides of the driving block (31).

8. A lock according to claim 2, wherein: the shell (1) is provided with a positioning block (113), and when the locking piece (2) is in a locking state, one end, far away from the first abutting surface (312), of the driving block (31) is abutted to the positioning block (113).

9. A lock according to claim 1, wherein: the driving block (31) is provided with a yielding groove (313), and when the locking member (2) is in an unlocking state, one end of the locking member (2) is located in the yielding groove (313).

10. A lock according to claim 1, wherein: the driving block (31) is convexly provided with a poking rod (314) with the end part penetrating out of the shell (1), and the shell (1) is provided with a moving groove (121) for the poking rod (314) to move.