WO2021092921A1

WO2021092921A1 - New electronic lock

Info

Publication number: WO2021092921A1
Application number: PCT/CN2019/118867
Authority: WO
Inventors: 周荣龙; 栾光辉
Original assignee: 厦门美科物联科技有限公司
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2021-05-20

Abstract

Disclosed is a new electronic lock, comprising a shell provided with an accommodating cavity, and a fixing base, a driving assembly, a circuit board and a battery holder which are mounted in the accommodating cavity, and a rotary knob assembly, a sliding block and a torsional spring, wherein the fixing base is provided with a mounting hole and a sliding groove that are in communication with each other; the rotary knob assembly penetrates through the shell and is pivoted to the mounting hole; a clamping groove is provided in the side wall of the rotary knob assembly; the sliding block is slidably connected in the sliding groove in a matching manner; a clamping column of the sliding block movably matches the clamping groove to limit the rotary knob assembly; the fixing base separates a reduction gear set from the sliding block; the torsional spring is arranged on an output gear of the driving assembly in a sleeved manner, with one end of the torsional spring being connected to the output gear and the other end thereof driving the sliding block; a control program is preset in the circuit board, and the circuit board controls the driving assembly to work when a user completes identity authentication; and the battery holder is used for supplying power. According to the structure of the present invention, the mechanical loss inside a product can be reduced, the stability of the product is improved, and at the same time, the service life of the product is prolonged, and the power consumption and the production cost of the product are also reduced.

Description

A new type of electronic lock

Technical field

The invention relates to the field of locks, in particular to a new type of electronic lock.

Background technique

An electronic code lock is an electronic product that controls the circuit or chip work (access control system) through password input, Bluetooth control, and card swiping, so as to control the closing of mechanical switches and complete unlocking and locking tasks. It has many types, simple circuit products, and chip-based products with higher cost performance. Nowadays, the widely used electronic code lock is realized by programming with the chip as the core. In the field of security technology protection, the electronic code lock with anti-theft alarm function replaces the traditional mechanical code lock, which overcomes the shortcomings of the mechanical code lock with less code and poor security performance, making the code lock both technically and in performance The above are greatly improved by one step.

However, the existing electronic locks still have certain defects in structure: the complex structure leads to high product costs, and the motor has high power consumption, poor stability, and short service life.

technical problem

The purpose of the present invention is to provide a new type of electronic lock, which can reduce the power consumption and cost of the product, and improve the working stability and service life.

Technical solutions

In order to achieve the above objective, the solution of the present invention is:

A new type of electronic lock includes a housing with a accommodating cavity, a fixing seat, a driving component, a circuit board and a battery seat installed in the accommodating cavity, as well as a knob assembly, a sliding block and a torsion spring; the fixing seat A mounting hole and a sliding groove are provided, and the end of the sliding groove communicates with the side wall of the mounting hole; the knob assembly penetrates the front and back of the housing and is pivotally fitted in the mounting hole. The knob assembly The two ends of the knob are respectively the operating end and the locking end. The side wall of the knob assembly is provided with a card slot, and the card slot is aligned with the end of the sliding groove as the knob assembly rotates; the slider has Clamping column, the clamping column is matched with the clamping slot, the sliding block is slidably fitted in the sliding groove, so that the clamping column is movably fitted in the clamping slot to realize the locking of the knob assembly State; The torsion spring is sleeved on the shaft of the output gear of the drive assembly, one end of the torsion spring is connected to the output gear, and the other end of the torsion spring is matched with the slider to drive the slider Move in the chute; the circuit board is preset with a control program to control the work of the drive assembly when the user completes identity authentication; the battery holder is electrically connected to the motor and the circuit board, respectively.

The driving assembly includes a reduction gear set and a motor installed in the accommodating cavity, the reduction gear set and the sliding block are separated by the fixed seat, and the motor drives the input gear of the reduction gear set, The torsion spring is sleeved on the rotating shaft of the output gear of the reduction gear set.

The sliding block has an end surface arranged opposite to the side wall of the accommodating cavity.

The slider is formed with a movable cavity, the movable cavity is opened with a gap, the other end of the torsion spring passes through the gap and fits in the movable cavity, and the end abuts against the torsion spring when the torsion spring rotates. The side wall of the movable cavity pushes the sliding block to move.

The other end of the torsion spring is formed with a first bending portion, and the bending portion is fitted in the movable cavity.

Two sides of the sliding block are formed with sliding joints, the sliding joints are movably fitted on both sides of the sliding groove, and the side of the sliding joint facing the sliding groove is wavy.

The knob assembly includes a knob, a lock core, and a tongue; the knob penetrates the housing, and is pivotally fitted in the mounting hole as the operating end of the knob assembly, and the slot is provided on the knob Side wall; one end of the lock cylinder is pivotally fitted in the knob, and is locked with the knob in the normal state, and can only be rotated when the matching key is inserted; the tongue is connected to the lock cylinder The other end serves as the locking end of the knob assembly.

The knob assembly further includes a lock core cover and a cap, the lock core cover is fitted on the knob to lock the lock core, and the cover cap is sleeved on the lock core cover.

The knob assembly further includes a dust-proof cover which is pivotally fitted to the lock hole of the lock cylinder for movably sealing the lock hole of the lock cylinder.

The new type of electronic lock also includes at least one set of limit components, the limit components including springs and steel balls; the side wall of the knob is also provided with at least one limit slot, the limit slot and the limit The components are correspondingly arranged, the fixing seat is formed with a mounting groove corresponding to the limiting component, the spring is arranged in the mounting groove, one end of the spring abuts against the side wall of the accommodating cavity, the The other end of the spring presses the steel ball to movably fit in the limiting groove to limit the shaking or rotation of the knob.

There are two sets of the limiting components, and correspondingly, the number of the installation grooves is two, and the two installation grooves are both arranged along the radial direction of the installation hole and are located on the same straight line.

The number of the limiting grooves is four, and they are arranged on the side wall of the knob at equal intervals along the circumferential direction of the knob.

Beneficial effect

After adopting the above technical scheme, the present invention has the following technical effects:

The transmission between the drive assembly and the slider is realized by setting the torsion spring. The torsion spring can be used as a buffer to store the axial force when the electronic lock is not closed in place, and release it when the lock is in the locked state, so as to realize the self-locking function of the lock and protect the product The internal structure improves stability and reduces the power consumption of the product;

The knob assembly is unlocked and locked by setting the slider. The knob assembly completes the switch function of the electronic lock. The load of the product is set on the knob assembly, and the slider has no load and can be easily and smoothly matched with the knob assembly. The value output is also small, the requirements for the motor and the torsion spring are also small, and the overall product has low power consumption and low production cost.

In addition, the transmission of the motor torque is realized by setting the reduction gear set, and the multi-stage reduction ensures the force output of the motor, and reduces the moving speed of the slider, reducing the internal mechanical loss of the product, improving the stability of the product and prolonging the service life; And the design of using ordinary motors and reduction gear sets can effectively reduce costs and realize the popularization and promotion of electronic locks in the market;

The sliding block and the reduction gear set are separated by the fixed seat, and the movable space of the two is separated, so that the two can move separately without interference with each other, and further ensure the stability of the product.

Description of the drawings

Figure 1 is a perspective view of a specific embodiment of the present invention;

Figure 2 is a front view of a specific embodiment of the present invention;

Figure 3 is a side view of a specific embodiment of the present invention;

Figure 4 is a rear view of a specific embodiment of the present invention;

Figure 5 is a top view of a specific embodiment of the present invention;

Figure 6 is an exploded view of a specific embodiment of the present invention;

Fig. 7 is a perspective view of a fixing seat according to a specific embodiment of the present invention;

Figure 8 is a perspective view of a torsion spring according to a specific embodiment of the present invention;

Fig. 9 is a perspective view 1 of the slider according to a specific embodiment of the present invention;

Fig. 10 is a second perspective view of a slider according to a specific embodiment of the present invention;

11 is a schematic diagram of the structure of the torsion spring, the sliding block and the output gear in the specific embodiment of the present invention;

Figure 12 is an exploded view of the knob assembly of the specific embodiment of the present invention;

Figure 13 is a schematic structural diagram of a locked state of a specific embodiment of the present invention;

14 is a schematic structural diagram of the unlocked state of a specific embodiment of the present invention;

Description with reference signs: housing 1; accommodating cavity 11; fixing seat 2; mounting hole 21; sliding groove 22; mounting groove 23; knob assembly 3; operating end 3A; locking end 3B; knob 31; card slot 311; Limit groove 312; lock core 32; tongue 33; lock core cover 34; cap 35; dust cover 36; slider 4; card post 41; spherical end 411; end surface 42; movable cavity 43; notch 431; Sliding part 44; reduction gear set 5; rotating shaft 51; jack 52; motor 6; torsion spring 7; first bending part 71; second bending part 72; battery holder 8; input keyboard 9; spring 10; steel ball 20.

Embodiments of the present invention

In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

The present invention is a new type of electronic lock, which includes a housing 1, a fixing base 2, a knob assembly 3, a slider 4, a driving assembly, a torsion spring 7, a circuit board (not shown in the figure) and a battery holder 8.

The above-mentioned housing 1 has an accommodation cavity 11.

The above-mentioned fixing base 2 is installed in the accommodating cavity 11, and the fixing base 2 is provided with a mounting hole 21 and a sliding groove 22, and the end of the sliding groove 22 communicates with the side wall of the mounting hole 21.

The above-mentioned knob assembly 3 penetrates the front and back of the housing 1 and is pivotally fitted in the mounting hole 21. The two ends of the knob assembly 3 are the operating end 3A and the locking end 3B, respectively. The side wall of the knob assembly 3 is provided with The card slot 311, the card slot 311 is aligned with the end of the sliding slot 22 along with the rotation of the knob assembly 3.

The above-mentioned slider 4 has a clamping post 41 which is matched with the clamping slot 311, and the sliding block 4 is slidably fitted in the sliding groove 22 so that the clamping post 41 is movably fitted in the clamping slot 311 to realize the rotation of the knob assembly 3 Locked state.

The above-mentioned drive assembly includes a reduction gear set 5 and a motor 6. The aforementioned reduction gear set 5 is installed in the accommodating cavity 11, and the fixed seat 2 separates the slider 4 and the reduction gear set 5. The above-mentioned motor 6 is installed in the accommodating cavity 11 and drives the input gear of the reduction gear set 5.

The torsion spring 7 is sleeved on the shaft 51 of the output gear of the reduction gear set 5. One end of the torsion spring 7 is connected with the output gear, and the other end of the torsion spring 7 is matched with the slider 4 to drive the slider 4 in The chute 22 moves.

The above-mentioned circuit board is preset with a control program to control the work of the motor 6 when the user completes the identity authentication.

The battery holder 8 is installed in the accommodating cavity 11 and electrically connected to the motor 6 and the circuit board, respectively.

Referring to Figs. 1 to 12, specific embodiments of the present invention are shown.

The above-mentioned clamping column 41 has a spherical end 411 to facilitate effective buckling and clamping of the slider 4 and the knob assembly 3 and to improve the smoothness of the movement of the clamping column 41 on the side wall of the knob assembly 3.

The slider 4 has an end surface 42 opposite to the side wall of the accommodating cavity 11. In this embodiment, it is an inclined surface, which can make the slider 4 and the housing 1 more closely fit without interference.

The slider 4 is formed with a movable cavity 43, the movable cavity 43 defines a gap 431, the other end of the torsion spring 7 passes through the gap 431 and fits in the movable cavity 43, and the end of the torsion spring 7 abuts against the movable cavity when the torsion spring 7 rotates. The side wall of 43 pushes the slider 4 to move, and the size of the movable cavity 43 and the gap 431 is set to meet the requirements of the end of the torsion spring 7 to drive the slider 4 to move smoothly in the chute, so as to avoid the torsion spring 7 from getting stuck The transmission of death or force is not in place.

The other end of the torsion spring 7 is formed with a first bending portion 71, and the first bending portion 71 is fitted in the movable cavity 43 to obtain a larger contact area with the slider 4 and prevent the torsion spring 7 from moving away from the slider. 4 fall off.

The output gear of the reduction gear set 5 is provided with an insertion hole 52, and one end of the torsion spring 7 is formed with a second bending portion 72 inserted in the insertion hole 52 so that the rotation of the output gear can drive The torsion spring 7 rotates.

The sliding joints 44 are formed on both sides of the sliding block 4, and the sliding joints 44 are movably fitted on both sides of the sliding groove 22. The sliding joint 44 is wavy on the side facing the sliding groove 22 to reduce friction and mechanical loss. In order to make the slider 4 pass through the chute 22 more smoothly.

The above-mentioned knob assembly 3 includes a knob 31, a lock core 32 and a tongue 33. The knob 31 passes through the housing 1, and is pivotally fitted in the mounting hole 21 as the operating end 3A of the knob assembly 3. The slot 311 is provided on the side wall of the knob 31; one end of the lock cylinder 32 is pivotally fitted in the knob 31 , And locked with the knob 31 in the normal state, and can only be turned when the matching key is inserted; the tongue 33 is connected to the other end of the lock core 32 as the locking end 3B of the knob assembly 3. When the electronic part of the product fails and cannot be unlocked electronically, mechanical emergency unlocking can be used. Insert the key into the lock cylinder 32 so that the lock cylinder 32 and the knob 31 are no longer restricted. Turn the lock cylinder 32 to drive the tongue 33 Operate to realize unlocking.

The above-mentioned knob assembly 3 also includes a lock cylinder cover 34 and a cover cap 35. The lock cylinder cover 34 is fitted on the knob 31 to lock the lock cylinder 32. The cover cap 35 is sleeved on the lock cylinder cover 34 to hide the lock cylinder 32 under normal conditions. And waterproof.

The above-mentioned knob assembly 3 also includes a dustproof cover 36 which is pivotally fitted to the lock hole of the lock cylinder 32 to movably seal the lock hole of the lock cylinder 32 to achieve dust protection.

There are many types of identity authentication methods set in the present invention, such as password authentication, Bluetooth connection, card swiping authentication, and the structure of password authentication is: the above circuit board has an input keyboard 9. When the user inputs the correct password, the circuit board controls the motor 6 to work .

The present invention also includes at least one set of limit components. The limit components include a spring 10 and a steel ball 20. The side wall of the knob 31 is also provided with at least one limit slot 312. The limit slot 312 is arranged corresponding to the limit component to fix The seat 2 is formed with a mounting groove 23 corresponding to the limiting component. The spring 10 is arranged in the mounting groove 23. One end of the spring 10 abuts against the side wall of the accommodating cavity 11, and the other end of the spring 10 presses the steel ball 20 to movably fit in The limit groove 312 is used to limit the shaking or rotation of the knob 31 during non-human operation to ensure that the knob 31 is fixed when the electronic lock is not in use. The design of the spring 10 and the steel ball 20 can ensure the rotation of the knob 31 when the electronic lock is unlocked. Hand feel, while ensuring fast reset.

There are two sets of the above-mentioned limit components, and correspondingly the number of the installation grooves 23 is two, and the two installation grooves 23 are both arranged along the radial direction of the installation hole 21 and are located on the same straight line.

The number of the above-mentioned limit grooves 312 is four, which are arranged on the side wall of the knob 31 at equal intervals along the circumferential direction of the knob 31 to realize the 90° rotation switching state of the knob 31.

The above-mentioned circuit board can be preset with an instruction program for timing locking.

The working principle of the present invention is: as shown in Figure 13 and Figure 14, when the user enters the correct password (or completes other forms of identity authentication) on the keyboard 9, the circuit board controls the motor 6 to run, and the motor 6 drives the reduction gear set 5 runs, the rotation of the output gear of the reduction gear set 5 drives the torsion spring 7 to rotate, thereby driving the sliding block 4 to slide away from the knob assembly 3 in the sliding groove 22, and the clamping column 41 is separated from the clamping groove 311, so that the knob assembly 3 is able to rotate freely Therefore, the user can turn the knob assembly 3 at the operating end 3A of the knob assembly 3 to unlock the locking end 3B of the knob assembly 3.

Within a period of time after unlocking, the electronic lock issues an automatic locking command to control the motor 6 to run in the reverse direction. The motor 6 drives the reduction gear set 5 to run, and the rotation of the output gear of the reduction gear set 5 drives the torsion spring 7 to rotate in the direction, thereby driving The sliding block 4 slides in the sliding groove 22 close to the knob assembly 3, and the motor 6 stops working. If the knob assembly 3 is still in the unlocked state at this time, the clamping post 41 will abut against the side wall of the knob assembly 3 and cannot enter the clamping slot 311 correctly. When the motor 6 rotates for the time set by the program and stops, the torsion spring 7 It will be compressed. When the knob assembly 3 is manually rotated to the locked state, the torsion spring 7 will be released at this time, pushing the slider 4 to move forward and allowing the clamping column 41 to enter the clamping slot 311, and the knob assembly 3 is clamped, thereby achieving The purpose of self-locking and locking.

Through the above structure, the present invention realizes the torque transmission of the motor 6 by setting the reduction gear set 5. The multi-stage reduction ensures the force output of the motor 6, and reduces the moving speed of the slider 4, reduces the internal mechanical loss of the product, and improves the stability of the product. The service life is prolonged at the same time; the sliding block 4 and the reduction gear set 5 are separated by the fixed seat 2 to separate the movement space of the two, so that the two can move independently without interference with each other, and further ensure the stability of the product; The torsion spring 7 is provided to realize the transmission of the reduction gear set 5 and the slider 4. The torsion spring 7 can be used as a buffer to store the axial force and tighten the torsion spring 7 when the electronic lock is not closed, and release it in the locked state , So as to protect the internal structure of the product and reduce the power consumption of the product; the unlocking and locking state of the knob assembly 3 is realized by setting the slider 4, and the switch function of the electronic lock is completed by the knob assembly 3, and the load of the product is set on the knob assembly 3. On the other hand, the slider 4 can be easily and smoothly matched with the knob assembly 3 without load, its force output is also small, the requirements for the motor 6 and the torsion spring 7 are also small, and the overall product has low power consumption and low production cost.

In addition, the knob assembly 3 of the present invention also has a mechanical emergency unlocking function, which can solve the problem that the traditional electronic lock cannot be used due to power failure or electronic failure.

The foregoing embodiments and drawings do not limit the product form and style of the present invention, and any appropriate changes or modifications made by those of ordinary skill in the art should be regarded as not departing from the patent scope of the present invention.

Claims

A new type of electronic lock, which is characterized by including:

A housing with a accommodating cavity;

The fixing seat installed in the accommodating cavity is provided with a mounting hole and a sliding groove, and the end of the sliding groove is connected to the side wall of the mounting hole;

The knob assembly penetrates the front and back of the housing and is pivotally fitted in the mounting hole. The two ends of the knob assembly are the operating end and the locking end respectively. The side wall of the knob assembly is provided with a slot, The card slot is aligned with the end of the sliding slot along with the rotation of the knob assembly;

The sliding block has a clamping column that matches with the clamping slot, and the sliding block is slidably fitted in the sliding groove, so that the clamping column is movably fitted in the clamping slot to realize the The locked state of the knob assembly;

A drive assembly installed in the accommodating cavity;

The torsion spring is sleeved on the shaft of the output gear of the drive assembly, one end of the torsion spring is connected with the output gear, and the other end of the torsion spring is matched with the slider to drive the slider on the Move in the chute;

The circuit board is preset with a control program to control the work of the driving component when the user completes identity authentication;

The battery holders installed in the accommodating cavity are respectively electrically connected with the motor and the circuit board.
A new type of electronic lock according to claim 1, characterized in that:

The driving assembly includes a reduction gear set and a motor installed in the accommodating cavity, the reduction gear set and the sliding block are separated by the fixed seat, and the motor drives the input gear of the reduction gear set, The torsion spring is sleeved on the rotating shaft of the output gear of the reduction gear set.
A new type of electronic lock according to claim 1, characterized in that:

The sliding block has an end surface arranged opposite to the side wall of the accommodating cavity.
A new type of electronic lock according to claim 1, characterized in that:

The slider is formed with a movable cavity, the movable cavity is opened with a gap, the other end of the torsion spring passes through the gap and fits in the movable cavity, and the end abuts against the torsion spring when the torsion spring rotates. The side wall of the movable cavity pushes the sliding block to move.
A new type of electronic lock according to claim 4, characterized in that:

The other end of the torsion spring is formed with a first bending portion, and the first bending portion is fitted in the movable cavity.
A new type of electronic lock according to claim 1, characterized in that:

Two sides of the sliding block are formed with sliding joints, the sliding joints are movably fitted on both sides of the sliding groove, and the side of the sliding joint facing the sliding groove is wavy.
A new type of electronic lock according to claim 1, characterized in that:

The knob assembly includes a knob, a lock core, and a tongue; the knob penetrates the housing, and is pivotally fitted in the mounting hole as the operating end of the knob assembly, and the slot is provided on the knob Side wall; one end of the lock cylinder is pivotally fitted in the knob, and is locked with the knob in the normal state, and can only be rotated when the matching key is inserted; the tongue is connected to the lock cylinder The other end serves as the locking end of the knob assembly.
A new type of electronic lock according to claim 7, characterized in that:

It also includes at least one set of limit components, the limit components including springs and steel balls; the side wall of the knob is also provided with at least one limit slot, the limit slot is arranged corresponding to the limit component, the fixing seat A mounting groove corresponding to the limiting component is formed, the spring is arranged in the mounting groove, one end of the spring abuts against the side wall of the accommodating cavity, and the other end of the spring presses the The steel ball is movably fitted in the limiting groove to limit the shaking or rotation of the knob.
A new type of electronic lock according to claim 8, characterized in that:

There are two sets of the limiting components, and correspondingly, the number of the installation grooves is two, and the two installation grooves are both arranged along the radial direction of the installation hole and are located on the same straight line.
A new type of electronic lock according to claim 9, characterized in that:

The number of the limiting grooves is four, and they are arranged on the side wall of the knob at equal intervals along the circumferential direction of the knob.