CN215485262U

CN215485262U - Anti-clamping titanium metal wire lock

Info

Publication number: CN215485262U
Application number: CN202120201829.3U
Authority: CN
Inventors: 陈公胜
Original assignee: Dongguan Shuoming Electromagnetic Technology Co ltd
Current assignee: Dongguan Shuoming Electromagnetic Technology Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2022-01-11
Anticipated expiration: 2031-01-25

Abstract

The utility model provides an anti-clamping titanium metal wire lock which comprises a shell, wherein a mechanical assembly for realizing locking and unlocking is arranged in the shell, one end of the mechanical assembly is connected with a titanium metal wire, the other end of the titanium metal wire is connected with an elastic piece, and the elastic piece is connected with the shell; the control circuit board is arranged in the shell, the titanium metal wire is electrically communicated with the control circuit board, the control circuit board receives an external signal to heat the titanium metal wire, and when the titanium metal wire is heated and contracted, the elastic piece and the mechanical assembly are simultaneously pulled, so that the mechanical assembly is unlocked; that is to say, when the mechanical assembly is in failure and is clamped, the titanium wire can pull the elastic piece to release the tensile force, so that the titanium wire is prevented from being contracted and broken when being clamped; the stability and the safety of the equipment use are improved; the structural design is ingenious, and the safety factor is high.

Description

Anti-clamping titanium metal wire lock

Technical Field

The utility model relates to the technical field of locks, in particular to an anti-clamping titanium metal wire lock.

Background

Most of the existing cabinet intelligent locks are fingerprint, finger pulse or electromagnetic locks; fingerprint locks are expensive, and have high and troublesome maintenance costs, and sensitivity may be affected by external factors, such as wet hands; the cost of the electromagnetic lock is much lower, but the electronic product is easy to damage and has insufficient durability; the force of the existing electromagnetic lock is only dozens of newtons, and the door cabinet with multiple phases and heavy weight is likely to have insufficient mechanical force and increase power consumption.

With the development of science and technology, locks using titanium wires as traction cables appear in the market to solve the problems of insufficient cost and driving force of the locks, wherein the locks are unlocked by pulling a lock beam to rotate after the titanium wires are heated and shrunk by using the physical characteristic of thermal shrinkage and cold expansion of the titanium wires so that a lock hook abutted against the lock beam is bounced off; when the heating is not carried out, the temperature of the titanium wire is reduced and recovered to the original length, so that the lock beam and the lock hook are recovered to the locking state of being supported again; however, there is a certain clamping hidden danger in the unlocking process, for example, after heating, the titanium wire contracts, but the friction force between the lock beam and the lock hook is too large to spring open, so that the titanium wire may be broken, and the lock is damaged; a number of safety hazards are created and therefore, a jamming prevention device should be designed for the existing titanium wire lock.

SUMMERY OF THE UTILITY MODEL

In order to solve the existing problems, the utility model provides an anti-clamping titanium metal wire lock which can prevent the clamping stagnation phenomenon possibly generated when the titanium metal wire lock is unlocked, so that the titanium metal wire is prevented from being pulled and broken.

In order to achieve the purpose, the utility model provides an anti-clamping titanium metal wire lock which comprises a shell, wherein a mechanical assembly for realizing locking and unlocking is arranged in the shell, one end of the mechanical assembly is connected with a titanium metal wire, the other end of the titanium metal wire is connected with an elastic piece, and the elastic piece is connected with the shell; and still be provided with control circuit board in the casing, the titanium wire with control circuit board electricity conductions, control circuit board receives external signal heating the titanium wire, works as when the titanium wire heating shrink, draws simultaneously the elastic component with mechanical component, mechanical component realizes the unblock.

Preferably, the mechanical assembly comprises a lock hook and a lock beam, the lock hook and the lock beam are both arranged on the shell through torsion springs, one end of the lock hook and the lock beam are mutually abutted to limit displacement so as to realize locking, and the other end of the lock hook is fixedly connected with the first end of the titanium wire; the second end of the titanium wire is connected with the elastic piece.

Preferably, the stiffness coefficient of the elastic member is greater than or equal to the stiffness coefficient of the torsion spring of the locking hook.

Preferably, the housing is further provided with a containing shell, the elastic piece is contained in the containing shell, one end of the elastic piece is connected with the containing shell, and the other end of the elastic piece is connected with the titanium wire.

Preferably, the elastic member is a coil spring, and a stretching direction of the coil spring is on the same horizontal plane as the titanium wire.

Preferably, the shell is further fixedly connected with a protective shell, the control circuit board is contained in the protective shell, the control circuit board is provided with a wiring terminal extending out of the protective shell, and the wiring terminal is used for being electrically connected with the outside.

Preferably, the control circuit board is further provided with a voltage stabilizing circuit unit, and the voltage stabilizing circuit unit is used for keeping the current passing through the titanium wire within a threshold interval.

Preferably, the protective shell is made of an insulating material.

Preferably, the housing is made of metal or insulating material.

The utility model has the beneficial effects that: the utility model provides an anti-clamping titanium metal wire lock which comprises a shell, wherein a mechanical assembly for realizing locking and unlocking is arranged in the shell, one end of the mechanical assembly is connected with a titanium metal wire, the other end of the titanium metal wire is connected with an elastic piece, and the elastic piece is connected with the shell; the control circuit board is arranged in the shell, the titanium metal wire is electrically communicated with the control circuit board, the control circuit board receives an external signal to heat the titanium metal wire, and when the titanium metal wire is heated and contracted, the elastic piece and the mechanical assembly are simultaneously pulled, so that the mechanical assembly is unlocked; that is to say, when the mechanical assembly is in failure and is clamped, the titanium wire can pull the elastic piece to release the tensile force, so that the titanium wire is prevented from being contracted and broken when being clamped; the stability and the safety of the equipment use are improved; the structural design is ingenious, and the safety factor is high.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is an exploded view of the present invention.

The main element symbols are as follows:

1. a housing; 11. a housing shell; 12. a protective shell; 2. a mechanical assembly; 21. a latch hook; 22. a lock beam; 23. a torsion spring; 3. a titanium wire; 4. an elastic member; 5. a control circuit board; 51. and a terminal.

Detailed Description

In order to more clearly describe the present invention, the present invention will be further described with reference to the accompanying drawings.

In the following description, details of general examples are given to provide a more thorough understanding of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. It should be understood that the specific embodiments are illustrative of the utility model and are not to be construed as limiting the utility model.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

The utility model provides an anti-clamping titanium metal wire lock, please refer to fig. 1-3, which comprises a shell 1, wherein a mechanical component 2 for realizing locking and unlocking is arranged in the shell 1, one end of the mechanical component 2 is connected with a titanium metal wire 3, the other end of the titanium metal wire 3 is connected with an elastic piece 4, and the elastic piece 4 is connected with the shell 1; a control circuit board 5 is further arranged in the shell 1, the titanium metal wire 3 is electrically conducted with the control circuit board 5, the control circuit board 5 receives an external signal to heat the titanium metal wire 3, when the titanium metal wire 3 is heated and contracted, the elastic piece 4 and the mechanical assembly 2 are simultaneously pulled, and the mechanical assembly 2 is unlocked; when the control circuit board receives an unlocking signal, the titanium wire is heated and contracted, then the spring and the mechanical assembly are pulled, and if the mechanical assembly is not clamped, the mechanical assembly is pulled to realize unlocking; if the mechanical assembly is blocked due to unexpected faults, the titanium wire pulls the fixed mechanical assembly, the elastic piece is pulled to release the pulling force at the moment, although the titanium wire cannot be unlocked, the titanium wire can be prevented from being pulled off due to the fact that the titanium wire is always in a heating state, the blockage can be an accidental event, and the phenomenon of the blockage can not occur when the titanium wire is unlocked next time; therefore, the safety of the lockset is improved by arranging the elastic piece; the service life is prolonged, and later maintenance is facilitated.

In the embodiment, the mechanical assembly 2 includes a lock hook 21 and a lock beam 22, the lock hook 21 and the lock beam 22 are both disposed on the housing 1 through a torsion spring 23, one end of the lock hook 21 and the lock beam 22 are abutted against each other to limit displacement to achieve locking, and the other end of the lock hook 21 is fixedly connected with the first end of the titanium wire 3; the second end of the titanium wire 3 is connected with the elastic part 4; when the lock is unlocked, the circuit board is controlled to heat the titanium wire, the titanium wire contracts to pull the lock hook, and the lock hook and the lock beam are separated to realize unlocking; after unlocking, the titanium wire gradually returns to the length of the normal temperature, so that when the lock is pressed into the lock bolt again, the lock hook and the lock beam are propped against and return to the locking state again.

In the present embodiment, the stiffness coefficient of the elastic member 4 is equal to or greater than the stiffness coefficient of the torsion spring of the locking hook 21; the titanium metal wire is ensured to rotate more easily when pulling the elastic piece and the lock hook, so that the titanium metal wire is heated to be unlocked inevitably in a normal state, and the stability of the structure is further ensured.

In this embodiment, the housing 1 is further provided with a containing shell 11, the elastic element 4 is contained in the containing shell 11, one end of the elastic element 4 is connected with the containing shell 11, and the other end is connected with the titanium wire 3; since the elastic member itself may be deformed, the movable range of the elastic member is limited in order to further secure the structural stability.

In this embodiment, the elastic member 4 is a coil spring, and the extension direction of the coil spring is on the same horizontal plane as the titanium wire; force can be completely transmitted, and the rigidity and the tensile feedback stability of the structure are ensured.

In this embodiment, the casing 1 is further fixedly connected with a protective casing 12, the control circuit board 5 is accommodated in the protective casing, and the control circuit board is provided with a wiring terminal extending out of the protective casing, and the wiring terminal 51 is used for being electrically connected with the outside. Let control circuit board be in fixed area alone, reinforcing equipment security utilizes binding post to reduce simultaneously and walks the line, accomplishes equipment succinctly. The control circuit board is also provided with a voltage stabilizing circuit unit which is used for keeping the current passing through the titanium metal wire within a threshold interval; particularly, the voltage is stabilized at 5-15V, so that the current and voltage range of the titanium wire during working is ensured, and the stretching length of the titanium wire is also controlled; the stability of the device is improved.

In the present embodiment, the protective casing 12 is made of an insulating material; because the shell can be made of metal or plastic and other insulating materials, the shell is made of plastic materials in order to control the insulating effect of the circuit board; the shell and the mechanical component part need to realize main functions, and metal materials with higher rigidity are preferably adopted; of course, the metal material is not limited to the specific use scenario.

The utility model has the technical effects that:

1. the two ends of the titanium wire are respectively connected with the elastic part and the latch hook, and the titanium wire can stretch the elastic part to release tension when being clamped, so that the fracture is prevented;

2. and a voltage stabilizing circuit unit is arranged on the control circuit board, so that the protection structure can normally operate.

The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. An anti-clamping titanium metal wire lock comprises a shell, wherein a mechanical assembly for realizing locking and unlocking is arranged in the shell, and the anti-clamping titanium metal wire lock is characterized in that one end of the mechanical assembly is connected with a titanium metal wire, the other end of the titanium metal wire is connected with an elastic piece, and the elastic piece is connected with the shell; and still be provided with control circuit board in the casing, the titanium wire with control circuit board electricity conductions, control circuit board receives external signal heating the titanium wire, works as when the titanium wire heating shrink, draws simultaneously the elastic component with mechanical component, mechanical component realizes the unblock.

2. The titanium metal wire lock with jamming prevention according to claim 1, wherein the mechanical assembly comprises a lock hook and a lock beam, the lock hook and the lock beam are both arranged on the housing through torsion springs, one end of the lock hook and the lock beam are abutted against each other to limit displacement so as to achieve locking, and the other end of the lock hook is fixedly connected with the first end of the titanium metal wire; the second end of the titanium wire is connected with the elastic piece.

3. The titanium wire lock of claim 2, wherein said spring member has a stiffness greater than or equal to a stiffness of a torsion spring of said locking hook.

4. The titanium wire lock with jamming prevention according to claim 1, wherein a housing case is further provided on the housing, the elastic member is housed in the housing case, and one end of the elastic member is connected to the housing case and the other end is connected to the titanium wire.

5. The titanium wire lock of any one of claims 2 to 4, wherein said elastic member is a coil spring, and the tension direction of said coil spring is in the same horizontal plane as said titanium wire.

6. The titanium wire lock capable of preventing jamming according to claim 1, wherein the housing is further fixedly connected with a protective housing, the control circuit board is accommodated in the protective housing, the control circuit board is provided with a wiring terminal extending out of the protective housing, and the wiring terminal is used for being electrically connected with the outside.

7. The titanium wire lock of claim 6, wherein a voltage regulator circuit unit is further disposed on said control circuit board, said voltage regulator circuit unit being configured to maintain a current passing through said titanium wire within a threshold range.

8. The titanium wire lock of claim 6, wherein said protective shell is made of an insulating material.

9. The titanium wire lock of claim 8, wherein said housing is made of metal or insulating material.