CN110792322A

CN110792322A - Novel electronic lock

Info

Publication number: CN110792322A
Application number: CN201911119964.7A
Authority: CN
Inventors: 周荣龙; 栾光辉
Original assignee: Xiamen Meike Iot Technology Co Ltd
Current assignee: Xiamen Meike Iot Technology Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-02-14

Abstract

The invention discloses a novel electronic lock, which comprises a shell with an accommodating cavity, a fixed seat, a driving assembly, a circuit board and a battery seat, a knob assembly, a sliding block and a torsion spring, wherein the fixed seat, the driving assembly, the circuit board and the battery seat are arranged in the accommodating cavity; the fixing column is provided with a mounting hole and a sliding chute which are communicated; the knob assembly penetrates through the shell and is pivoted in the mounting hole, and a clamping groove is formed in the side wall of the knob assembly; the sliding block is in sliding fit in the sliding groove, and the clamping column is movably matched with the clamping groove to realize the limit of the knob component; the fixed seat separates the reduction gear set and the sliding block; the torsion spring is sleeved on an output gear of the driving assembly, one end of the torsion spring is connected with the output gear, and the other end of the torsion spring drives the sliding block; the circuit board is preset with a control program and controls the driving component to work when the user completes identity authentication; the battery holder is used for supplying power. The structure of the invention can reduce the mechanical loss in the product, improve the stability of the product, prolong the service life and reduce the power consumption and the production cost of the product.

Description

Novel electronic lock

Technical Field

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

Background

The electronic coded lock is an electronic product which controls a circuit or a chip to work (access control system) through modes of code input, Bluetooth control, card swiping and the like so as to control the closing of a mechanical switch and complete unlocking and locking tasks. There are many kinds of the circuit products, and there are simple circuit products and products with higher cost performance based on chips. The electronic coded lock which is widely applied at present is realized by taking a chip as a core and programming. The electronic lock is in the field of safety technology prevention, the electronic coded lock with the anti-theft alarm function replaces the traditional mechanical coded lock, the defects of small code amount and poor safety performance of the mechanical coded lock are overcome, and the coded lock is improved in one step both technically and in performance.

However, the existing electronic lock still has certain defects in structure: the complex structure causes high cost of the product, and the motor has high power consumption, poor stability and short service life.

Disclosure of Invention

The invention aims to provide a novel electronic lock, which reduces the power consumption and cost of products, improves the working stability and prolongs the service life.

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

a novel electronic lock comprises a shell with an accommodating cavity, a fixed seat, a driving assembly, a circuit board and a battery seat which are arranged in the accommodating cavity, a knob assembly, a sliding block and a torsion spring; the fixed seat is provided with a mounting hole and a sliding chute, and the end part of the sliding chute is communicated with the side wall of the mounting hole; the knob assembly penetrates through the front surface and the rear surface of the shell and is in pin joint fit in the mounting hole, the two ends of the knob assembly are respectively an operating end and a locking end, the side wall of the knob assembly is provided with a clamping groove, and the clamping groove is aligned with the end part of the sliding groove along with the rotation of the knob assembly; the sliding block is provided with a clamping column which is matched with the clamping groove, and the sliding block is in sliding fit in the sliding groove, so that the clamping column is in movable fit in the clamping groove, and the locking state of the knob component is realized; the torsion spring is sleeved on a rotating shaft of an output gear of the driving 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 sliding block so as to drive the sliding block to move in the sliding groove; the circuit board is preset with a control program, and the drive assembly is controlled to work when a user completes identity authentication; the battery seat is electrically connected with the motor and the circuit board respectively.

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

The sliding block is provided with an end face which is opposite to the side wall of the accommodating cavity.

The slider is formed with the activity chamber, and this activity chamber is seted up a breach, the other end of torsional spring passes the breach and the cooperation is in the activity chamber, this tip supports when the torsional spring rotates and leans on the lateral wall in order to promote the slider removes.

The other end of the torsion spring is provided with a first bending part which is matched in the movable cavity.

The sliding connection part is movably matched with the two sides of the sliding groove, and one surface of the sliding connection part facing the sliding groove is wavy.

The knob assembly comprises a knob, a lock cylinder and a tongue piece; the knob penetrates through the shell and is in pivot joint fit in the mounting hole to serve as an operating end of the knob assembly, and the clamping groove is formed in the side wall of the knob; one end of the lock cylinder is pivoted and matched in the knob, is locked with the knob in a normal state and can rotate only when a matched key is inserted; the tongue piece is connected to the other end of the lock cylinder and serves as a locking end of the knob assembly.

The knob assembly further comprises a lock cylinder cover and a cover cap, the lock cylinder cover is matched with the knob to lock the lock cylinder, and the cover cap is sleeved on the lock cylinder cover.

The knob assembly further comprises a dustproof cover which is in pivot joint fit with the lock hole of the lock cylinder and used for movably sealing the lock hole of the lock cylinder.

The novel electronic lock further comprises at least one group of limiting components, and each limiting component comprises a spring and a steel ball; the lateral wall of knob still is provided with an at least spacing groove, this spacing groove with spacing subassembly corresponds the setting, the fixing base be formed with the mounting groove that spacing subassembly corresponds the setting, the spring sets up in this mounting groove, the one end of spring supports and leans on the lateral wall in holding chamber, the other end roof pressure of spring steel ball clearance fit is in the spacing groove, in order to restrict rocking or rotation of knob.

The limiting assemblies are two in number, correspondingly, the number of the mounting grooves is two, and the two mounting grooves are arranged along the radial direction of the mounting hole and are located on the same straight line.

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

After the technical scheme is adopted, the invention has the following technical effects:

the driving assembly and the sliding block are driven by the torsion spring, the torsion spring can be used as a buffer piece, axial force is stored when the electronic lock is not closed in place, and the axial force is released when the electronic lock is in a locking state, so that the self-locking function of the lock is realized, the internal structure of a product is protected, the stability is improved, and the power consumption of the product is reduced;

realize the unblanking and the shutting state of knob subassembly through setting up the slider, accomplish the switch function of electronic lock by the knob subassembly, set up the load of product on the knob subassembly, and the slider does not have the load and more smoothly cooperates with the knob subassembly, and its power output is also little, and is also little to the requirement of motor and torsional spring, and the low power dissipation of whole product, low in production cost.

In addition, the transmission of the torque force of the motor is realized by arranging the reduction gear set, the force value output of the motor is ensured by multi-stage speed reduction, the moving speed of the sliding block is reduced, the mechanical loss in the product is reduced, the stability of the product is improved, and the service life is prolonged; the common design of the motor and the reduction gear set is used, so that the cost can be effectively reduced, and the market popularization and the promotion of the electronic lock are realized;

through setting up the fixing base and separating slider and reduction gear set, separate the activity space of two, realize both separately activity, mutually noninterfere, further guaranteed the stability of product.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a front view of an embodiment of the present invention;

FIG. 3 is a side view of an embodiment of the present invention;

FIG. 4 is a rear view of an embodiment of the present invention;

FIG. 5 is a top view of an embodiment of the present invention;

FIG. 6 is an exploded view of an embodiment of the present invention;

FIG. 7 is a perspective view of a mounting base according to an embodiment of the present invention;

FIG. 8 is a perspective view of a torsion spring in accordance with an embodiment of the present invention;

FIG. 9 is a first perspective view of a slider according to an embodiment of the present invention;

FIG. 10 is a second perspective view of a slider in accordance with an embodiment of the present invention;

FIG. 11 is a schematic view of the configuration of the torsion spring, the slider and the output gear in cooperation according to the embodiment of the present invention;

FIG. 12 is an exploded view of a rotary knob assembly in accordance with an embodiment of the present invention;

FIG. 13 is a schematic block diagram of a latch-up configuration according to an embodiment of the present invention;

FIG. 14 is a schematic structural view of an unlocked state of an embodiment of the present invention;

the reference numbers illustrate: a housing 1; an accommodating chamber 11; a fixed seat 2; a mounting hole 21; a chute 22; a mounting groove 23; a knob assembly 3; an operation end 3A; a locking end 3B; a knob 31; a card slot 311; a retaining groove 312; a lock cylinder 32; a tongue 33; a cylinder cover 34; a cap 35; a dust cover 36; a slider 4; a clamp column 41; a ball-type end 411; end face 42; a movable chamber 43; a notch 431; a sliding contact portion 44; a reduction gear set 5; a rotating shaft 51; a jack 52; a motor 6; a torsion spring 7; a first bent portion 71; a second bent portion 72; a battery holder 8; an input keyboard 9; a spring 10; and (5) steel balls 20.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

The invention relates to a novel electronic lock, which comprises a shell 1, a fixed seat 2, a knob component 3, a sliding block 4, a driving component, a torsion spring 7, a circuit board (not shown in the figure) and a battery seat 8.

The housing 1 has an accommodating chamber 11.

The fixing seat 2 is installed in the accommodating cavity 11, the fixing seat 2 is provided with an installation hole 21 and a sliding groove 22, and an end of the sliding groove 22 is communicated with a side wall of the installation hole 21.

The knob assembly 3 penetrates through the front and rear surfaces of the housing 1 and is pivotally coupled in the mounting hole 21, the two ends of the knob assembly 3 are respectively an operating end 3A and a locking end 3B, a clamping groove 311 is formed in the side wall of the knob assembly 3, and the clamping groove 311 is aligned with the end of the sliding groove 22 along with the rotation of the knob assembly 3.

The slider 4 has a locking column 41, the locking column 41 is matched with the locking slot 311, and the slider 4 is in sliding fit in the sliding slot 22, so that the locking column 41 is in movable fit in the locking slot 311, and the locking state of the knob assembly 3 is realized.

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

The torsion spring 7 is sleeved on the rotating 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 sliding block 4 to drive the sliding block 4 to move in the sliding groove 22.

The circuit board is preset with a control program, and the motor 6 is controlled to work when the user completes identity authentication.

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

Referring to fig. 1-12, a specific embodiment of the present invention is shown.

The clip column 41 has a spherical end 411, which facilitates the effective locking and clamping of the slider 4 and the knob assembly 3, and improves the smoothness of the movement of the clip column 41 on the side wall of the knob assembly 3.

The slider 4 has an end surface 42, which is an inclined surface in this embodiment, opposite to the side wall of the accommodating cavity 11, so that the slider 4 can be more attached to the housing 1 without interference.

The slider 4 is provided with a movable cavity 43, the movable cavity 43 is provided with a notch 431, the other end of the torsion spring 7 penetrates through the notch 431 and is matched with the movable cavity 43, the end part of the torsion spring 7 abuts against the side wall of the movable cavity 43 to push the slider 4 to move when rotating, the sizes of the movable cavity 43 and the notch 431 are set to meet the requirement that the end part of the torsion spring 7 drives the slider 4 to do smooth linear motion in the sliding groove, and the phenomenon that the torsion spring 7 is jammed or the force is not transferred in place is avoided.

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

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 bent portion 72, and the second bent portion 72 is inserted into the insertion hole 52, so that the rotation of the output gear can drive the torsion spring 7 to rotate.

The sliding connection portions 44 are formed on both sides of the slider 4, the sliding connection portions 44 are movably fitted on both sides of the sliding groove 22, and one surface of the sliding connection portion 44 facing the sliding groove 22 is wavy, so that friction and mechanical loss are reduced, and the slider 4 can pass through the sliding groove 22 more smoothly.

The knob assembly 3 includes a knob 31, a key cylinder 32, and a tongue 33. The knob 31 penetrates through the shell 1 and is in pivot fit with the mounting hole 21 to serve as an operation end 3A of the knob assembly 3, and the clamping groove 311 is arranged on the side wall of the knob 31; one end of the lock core 32 is pivoted and matched in the knob 31, and is locked with the knob 31 in a normal state and can rotate only when a matched key is inserted; a tongue 33 is attached to the other end of the key cylinder 32 as a locking end 3B of the knob assembly 3. When the electronic part of the product fails and the electronic unlocking cannot be realized, mechanical emergency unlocking can be adopted, a key is inserted into the lock cylinder 32, the lock cylinder 32 and the knob 31 are not limited any more, and the tongue piece 33 can be driven to operate by twisting the lock cylinder 32, so that unlocking is realized.

The knob assembly 3 further includes a cylinder cover 34 and a cap 35, the cylinder cover 34 is fitted on the knob 31 to lock the cylinder 32, and the cap 35 is fitted on the cylinder cover 34 to hide the cylinder 32 and prevent water in a normal state.

The knob assembly 3 further comprises a dust cover 36, wherein the dust cover 36 is pivotally connected to the lock hole of the lock core 32 and is used for movably sealing the lock hole of the lock core 32 to prevent dust.

The identity authentication method set by the invention has various modes, such as password authentication, Bluetooth connection and card swiping authentication, wherein the password authentication structure is as follows: the circuit board has an input keypad 9 which controls the motor 6 to operate when the user enters the correct password.

The invention also comprises at least one group of limiting components, each limiting component comprises a spring 10 and a steel ball 20, the side wall of the knob 31 is also provided with at least one limiting groove 312, each limiting groove 312 is arranged corresponding to the limiting component, the fixing seat 2 is provided with a mounting groove 23 arranged 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, the other end of the spring 10 abuts against the steel ball 20 and is movably matched in the limiting groove 312 so as to limit the shaking or the rotation of the knob 31 when the knob is not manually operated, the knob 31 is ensured to be fixed when the electronic lock is not used, the hand feeling of the knob 31 can be ensured by the design of the spring 10 and the steel ball 20 when the electronic lock is unlocked, and the.

The limiting assemblies are two in number, the number of the corresponding mounting grooves 23 is two, and the two mounting grooves 23 are arranged along the radial direction of the mounting hole 21 and located on the same straight line.

The four limiting grooves 312 are equally spaced along the circumferential direction of the knob 31 and are disposed on the sidewall of the knob 31 to realize the 90 ° rotation switching state of the knob 31.

The circuit board can be preset with a command program for timing locking.

The working principle of the invention is as follows: referring to fig. 13 and 14, after the user inputs a correct password (or completes other forms of authentication) on the input keyboard 9, the circuit board controls the motor 6 to operate, the motor 6 drives the reduction gear set 5 to operate, the rotation of the output gear of the reduction gear set 5 drives the torsion spring 7 to rotate, so that the driving slider 4 slides in the sliding groove 22 away from the knob assembly 3, the locking column 41 is separated from the locking groove 311, the knob assembly 3 is in an unlocking state capable of rotating freely, and the user turns the knob assembly 3 at the operation end 3A of the knob assembly 3, so that the locking end 3B of the knob assembly 3 can be unlocked.

In a period of time after unlocking, the electronic lock sends an automatic locking command to control the motor 6 to reversely rotate, the motor 6 drives the reduction gear set 5 to rotate, the rotation of the output gear of the reduction gear set 5 drives the torsion spring 7 to rotate in the direction, so that the sliding block 4 is driven to slide in the sliding groove 22 to be close to the knob component 3, and the motor 6 stops working. If the knob assembly 3 is still in the unlocking state at this moment, the clamping column 41 can abut against the side wall of the knob assembly 3 and cannot enter the clamping groove 311 correctly, the motor 6 stops after reaching the time set by the program, the torsion spring 7 can be compressed, and when the knob assembly 3 is manually rotated to the locking state, the torsion spring 7 can be released at this moment, the sliding block 4 is pushed to continue to advance, the clamping column 41 enters the clamping groove 311, the knob assembly 3 is clamped, and therefore the purposes of self-locking and locking are achieved.

Through the structure, the transmission of the torque of the motor 6 is realized by arranging the reduction gear set 5, the multi-stage speed reduction ensures the output of the force value of the motor 6, the moving speed of the sliding block 4 is reduced, the mechanical loss in the product is reduced, the stability of the product is improved, and the service life is prolonged; the fixed seat 2 is arranged to separate the sliding block 4 and the reduction gear set 5, and the moving spaces of the sliding block and the reduction gear set are separated, so that the sliding block and the reduction gear set can move independently and do not interfere with each other, and the stability of a product is further ensured; the transmission between the reduction gear set 5 and the sliding block 4 is realized by arranging the torsion spring 7, the torsion spring 7 can be used as a buffer part, axial force is stored and the torsion spring 7 is screwed when the electronic lock is not closed in place, and the axial force is released when the electronic lock is in a locking state, so that the internal structure of a product is protected, and the power consumption of the product is reduced; realize the unblanking and the shutting state of knob subassembly 3 through setting up slider 4, accomplish the switch function of electronic lock by knob subassembly 3, set up the load of product on knob subassembly 3, and slider 4 does not have the load and cooperates with knob subassembly 3 more smoothly, and its power value output is also little, and is also little to motor 6 and torsional spring 7's requirement, and the low power dissipation of whole product, low in production cost.

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

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A novel electronic lock is characterized by comprising:

a housing having an accommodating chamber;

the fixed seat is arranged in the accommodating cavity and is provided with a mounting hole and a sliding chute, and the end part of the sliding chute is communicated with the side wall of the mounting hole;

the knob assembly penetrates through the front surface and the rear surface of the shell and is in pin joint fit in the mounting hole, the two ends of the knob assembly are respectively an operating end and a locking end, and a clamping groove is formed in the side wall of the knob assembly and is aligned with the end part of the sliding groove along with the rotation of the knob assembly;

the sliding block is provided with a clamping column which is matched with the clamping groove, and the sliding block is in sliding fit in the sliding groove so that the clamping column is in movable fit in the clamping groove to realize the locking state of the knob assembly;

the driving assembly is installed in the accommodating cavity;

the torsional spring is sleeved on a rotating shaft of the output gear of the driving assembly, one end of the torsional spring is connected with the output gear, and the other end of the torsional spring is matched with the sliding block so as to drive the sliding block to move in the sliding groove;

the circuit board is preset with a control program and controls the driving assembly to work when the user finishes identity authentication;

and the battery seat is arranged in the accommodating cavity and is electrically connected with the motor and the circuit board respectively.

2. A novel electronic lock as claimed in claim 1, wherein:

3. A novel electronic lock as claimed in claim 1, wherein:

4. A novel electronic lock as claimed in claim 1, wherein:

5. The novel electronic lock as claimed in claim 4, wherein:

6. A novel electronic lock as claimed in claim 1, wherein:

7. A novel electronic lock as claimed in claim 1, wherein:

8. A novel electronic lock as claimed in claim 7, wherein:

the device also comprises at least one group of limiting components, wherein each limiting component comprises a spring and a steel ball; the lateral wall of knob still is provided with an at least spacing groove, this spacing groove with spacing subassembly corresponds the setting, the fixing base be formed with the mounting groove that spacing subassembly corresponds the setting, the spring sets up in this mounting groove, the one end of spring supports and leans on the lateral wall in holding chamber, the other end roof pressure of spring steel ball clearance fit is in the spacing groove, in order to restrict rocking or rotation of knob.

9. A novel electronic lock as claimed in claim 8, wherein:

10. A novel electronic lock as claimed in claim 9, wherein: