CN209874729U - Electronic lock core - Google Patents

Abstract

The utility model discloses an electronic lock core, including the casing, and arrange in inside motor element, the control of casing the control module of motor element function and with the lock tongue body that motor element connects, the lock tongue body includes lock tongue chamber and sets up the spring bolt of lock tongue chamber lower part, the lock tongue intracavity is provided with rotating spring. The motor assembly comprises a driving motor and a rotating shaft, the driving motor is connected with the rotating shaft, and the rotating shaft penetrates through the lock tongue cavity and is sleeved with the rotating spring. When the driving motor rotates forwards or backwards, the rotating shaft rotates to drive the rotating spring to rotate, compress or stretch, the rotating spring is compressed or stretched to generate deformation to drive the bolt body to move up and down along the axial direction of the rotating shaft, and therefore the purposes of unlocking and locking are achieved. The electronic lock cylinder is simple in electromechanical composition structure, accurate in lock tongue operation control, small in power consumption, low in failure rate and long in service life.

Description

Electronic lock core

Technical Field

The utility model belongs to the tool to lock field especially relates to an electronic lock core.

Background

The lock cylinders adopted in the prior art are mainly a mechanical lock cylinder and an electronic lock cylinder, and the mechanical lock cylinder needs to be unlocked by a key, so that the condition that the lock cannot be unlocked due to missing of the key exists. The electronic lock cylinder can avoid the problem.

Among the prior art, the most formula structure as an organic whole of electronic lock core is difficult to dismantle the maintenance to inside component parts are many, electromechanical structure constitutes complicacy, and is not accurate to the operation control of spring bolt, thereby causes the big, fault rate height of consumption and life weak point scheduling problem. In addition, it is desirable to provide an electronic lock cylinder that is versatile and adaptable to a variety of different locks.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems of providing an electronic lock core, solving the problems of complex electromechanical structure, large power consumption, high failure rate, short service life and the like caused by inaccurate control of lock tongue operation in the prior art.

In order to solve the above technical problem, the present invention provides an electronic lock core, including a housing, a motor assembly disposed inside the housing, a control module for controlling the operation of the motor assembly, and a lock tongue body connected to the motor assembly, wherein the lock tongue body includes a lock tongue cavity and a lock tongue disposed at a lower portion of the lock tongue cavity, and a rotation spring is disposed in the lock tongue cavity; the motor assembly comprises a driving motor and a rotating shaft, the driving motor is connected with the rotating shaft, and the rotating shaft penetrates through the lock tongue cavity and is sleeved with the rotating spring.

When the driving motor rotates forwards or backwards, the rotating shaft rotates to drive the rotating spring to rotate, compress or stretch, and the rotating spring is compressed or stretched to generate deformation to drive the lock tongue body to move up and down along the axial direction of the rotating shaft.

The utility model discloses in another embodiment of electronic lock core, rotary spring's lower extreme with lock tongue chamber bottom joint or fixed connection, rotary spring's upper end with pivot joint or fixed connection, the upper portion in lock tongue chamber sets up two cursor slide that extend to the top, two the cursor slide joint is to setting up and is in on two slides that correspond in the casing, work as when driving motor corotation or reversal, drive the cursor slide is injectd and is reciprocated on the slide.

In another embodiment of the electronic lock cylinder of the present invention, a space is left between adjacent spring wires of the rotary spring.

The utility model discloses in another embodiment of electronic lock core, control module controls at every turn the length of time of driving motor corotation is the same with the length of time of reversal, and control rotating spring is in the spring bolt intracavity is by the rotating spring deformation length of first deformation state to the transform of second deformation state, and is the same with the rotating spring deformation length by the transform of second deformation state to first deformation state.

The utility model discloses in another embodiment of electronic lock core, motor element still include with the reduction gear that driving motor is connected, retarder connection the pivot, the both sides of pivot surface are provided with two radial archs of symmetry, the rotating spring joint is in on two radial archs.

In another embodiment of the electronic lock cylinder of the present invention, the speed reducer includes a plurality of supporting plates, a gear for adjusting a rotation ratio and a supporting pillar for supporting the supporting plates are engaged with each other between the supporting plates; the driving motor is connected with a first rotating gear, the first rotating gear is meshed with a first duplicate gear, the first duplicate gear is meshed with a second duplicate gear, the second duplicate gear is meshed with a third duplicate gear, the third duplicate gear is meshed with a fourth duplicate gear, the fourth duplicate gear is meshed with a second rotating gear again, and the second rotating gear is coaxially connected with the rotating shaft.

In another embodiment of the present invention, the control module includes a printed circuit board, a processor chip disposed on the printed circuit board, and a motor interface electrically connected to the processor chip, wherein the motor interface is electrically connected to the driving motor through a cable, so as to control the driving motor to rotate in the forward direction or in the reverse direction.

In another embodiment of the present invention, the housing includes an outer housing and an inner housing, the bolt body, the control module and the motor assembly electrically connected to the control module are disposed in the outer housing and the inner housing.

The utility model discloses in another embodiment of electronic lock core, the upper portion of shell body is provided with two connection pieces that have the connecting hole, the inside first diaphragm and the second diaphragm of accepting that still is provided with of shell body motor element, first diaphragm is two and symmetry setting respectively is in on the lateral wall of the inside both sides of shell body, the second diaphragm also is two and symmetry setting respectively is in on the lateral wall of the inside both sides of shell body, two there is the interval between the first diaphragm, two also there is the interval between the second diaphragm, first diaphragm is in the top of second diaphragm just the width of first diaphragm is less than the width of second diaphragm, between the first diaphragm the interval with motor element transverse width is the same.

The utility model discloses in another embodiment of electronic lock core, the upper portion of interior casing is provided with the draw-in groove, shell body upper portion with the draw-in groove corresponds the position and is provided with protruding knot, protruding knot with the draw-in groove block is connected, interior casing have stretch to two fixed arms of shell body inside, two it is used for fixing to form between the fixed arm driving motor's arm chamber, arm chamber shape with driving motor shape looks adaptation, two sides in arm chamber are provided with the slide.

The utility model has the advantages that: the utility model discloses an electronic lock core, including the casing, and arrange in inside motor element, the control of casing the control module of motor element function and with the lock tongue body that motor element connects, the lock tongue body includes lock tongue chamber and sets up the spring bolt of lock tongue chamber lower part, the lock tongue intracavity is provided with rotating spring. The motor assembly comprises a driving motor and a rotating shaft, the driving motor is connected with the rotating shaft, and the rotating shaft penetrates through the lock tongue cavity and is sleeved with the rotating spring. When the driving motor rotates forwards or backwards, the rotating shaft rotates to drive the rotating spring to rotate, compress or stretch, the rotating spring is compressed or stretched to generate deformation to drive the bolt body to move up and down along the axial direction of the rotating shaft, and therefore the purposes of unlocking and locking are achieved. The electronic lock cylinder is simple in electromechanical composition structure, accurate in lock tongue operation control, small in power consumption, low in failure rate and long in service life.

Drawings

Fig. 1 is an exploded schematic view of an embodiment of the electronic lock cylinder of the present invention;

FIG. 2 is an assembled schematic view of the embodiment of FIG. 1;

fig. 3 is an exploded view of a motor assembly and a bolt body in another embodiment of the electronic lock cylinder of the present invention;

FIG. 4 is an assembled view of the embodiment of FIG. 3;

fig. 5 is an exploded view of a reducer in another embodiment of the electronic lock cylinder of the present invention;

fig. 6 is a schematic diagram of a control module in another embodiment of the electronic lock cylinder of the present invention;

fig. 7 is a schematic view of an outer shell in another embodiment of the electronic lock cylinder of the present invention;

fig. 8 is a schematic view of an assembly of the inner housing and the motor assembly in another embodiment of the electronic lock cylinder of the present invention;

fig. 9 is a schematic view of another embodiment of the electronic lock cylinder of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Fig. 1 is an exploded schematic view of an embodiment of the electronic lock cylinder of the present invention, and fig. 2 is an assembled schematic view of the embodiment shown in fig. 1. With reference to fig. 1, 2 and 3, the electronic lock cylinder includes a housing, a motor assembly A3 disposed inside the housing, a control module a4 for controlling the operation of the motor assembly A3, and a lock tongue body a5 connected to the motor assembly A3, wherein the lock tongue body a5 includes a lock tongue cavity and a lock tongue a54 disposed at a lower portion of the lock tongue cavity, and a rotation spring a33 is disposed in the lock tongue cavity. The motor assembly A3 comprises a driving motor A31 and a rotating shaft A32, the driving motor A31 is connected with the rotating shaft A32, and the rotating shaft A32 penetrates through the lock tongue cavity and is sleeved with the rotating spring A33.

When the driving motor A31 rotates forward or backward, the rotating shaft A32 rotates to drive the rotating spring A33 to rotate, compress or stretch, and the rotating spring A33 generates deformation by compression or stretching to drive the bolt body A5 to move up and down along the axial direction of the rotating shaft A32, so that the purpose of unlocking or locking is achieved.

The casing comprises an outer casing A1 and an inner casing A2 which are covered together, and the bolt body A5, the control module A4 and the motor assembly A3 electrically connected with the control module A4 are arranged in a casing cavity formed by covering the outer casing A1 and the inner casing A2.

The housing cavity is configured to provide protection for the control module a4 and the motor assembly A3 from external dust and contaminants entering the housing cavity, reducing the likelihood of damage to the control module and the motor assembly.

Fig. 3 and 4 show an exploded view and an assembled view of the motor assembly A3 and the latch body a5, respectively.

Preferably, with reference to fig. 3 and 4, the rotating shaft a32 may be an integral rotating shaft, two symmetrical radial protrusions a3221 are disposed on two sides of the outer surface of the rotating shaft a32, and the rotating spring a33 is clamped on the two radial protrusions a 3221.

Preferably, the lower end of the rotating spring a33 is clamped or fixedly connected with the bottom of the latch cavity, the upper end of the rotating spring a33 is clamped or fixedly connected with the rotating shaft a32, a gap is left between adjacent spring wires of the rotating spring a33, when the rotating shaft a32 rotates, the upper end of the rotating spring a33 can be driven to rotate, and the lower end is fixed, so that the rotating spring a33 generates a compression or extension effect, for example, when the rotating shaft rotates clockwise, the rotating spring a33 compresses, and when the rotating shaft rotates counterclockwise, the rotating spring a33 extends.

Therefore, the arrangement mode can drive the rotating shaft to rotate by the driving motor, further drive the rotating spring to compress or extend, and the rotating spring is fixed in the lock tongue cavity and can drive the lock tongue to move up and down along the axial direction of the rotating shaft.

Preferably, the rotary spring is selected to be bi-directional, i.e. the rotary spring a33 has a space between adjacent wires, and it is because of the space that the spring can be compressed, otherwise it cannot be compressed if there is no space.

Preferably, the length of the rotating spring in a natural state (i.e., the rotating spring is not stretched or compressed by an external force) is the length of the lock tongue cavity, in this case, the rotating spring is beneficial to keep working for a long time, and the range of the distance of the axial movement of the lock tongue can be increased. Therefore, the type of the rotary spring and the space length of the lock tongue cavity can be reasonably selected according to the running distance range of the lock tongue.

Preferably, the rotating spring with no space between adjacent spring wires can be selected for practical use, in which case the rotating spring can only work in a stretched state, but only the magnitude of the stretching deformation is different. When the rotating spring is in a natural state, the rotating spring is just positioned at the lowest end position corresponding to the lock tongue, namely the locking position, the rotating motor drives the rotating shaft to rotate, so that the rotating spring can be stretched, and at the moment, the lock tongue moves upwards to unlock the lock. This application allows the rotating spring to be in a natural state at all times in the locked state, and to be in a stretched state at all times after unlocking, and the travel length of the bolt is equal to the maximum stretched length of the rotating spring. In practical application, the lock core in a common lock is in a locking state for a long time, so that the mode has the advantages that the rotating spring is in a natural state for a long time, the rotating spring is favorable for keeping good working characteristics, and the defect is that the running length of the lock tongue is limited.

Further preferably, the rotating shaft a32 can also be formed by a rotating rod a321 and a rotating sleeve a322 sleeved on the rotating rod a321, two symmetrical radial protrusions a3221 are arranged on two sides of the outer surface of the rotating sleeve a322, the rotating spring a33 is clamped on the two radial protrusions a3221 of the rotating sleeve a322, and the forming form of the rotating shaft a32 is not fixed.

Preferably, a lug hole a52 for the rotating sleeve a322 to penetrate is formed in the upper end face of the lock tongue body a5 and between the two sliding arms a51, a hole a53 is formed in the lower end face of the lock tongue body a5 and corresponds to the lug hole a52, and a lock tongue a54 is further arranged on the lower end face of the lock tongue body a 5.

Two cursor slide A51 that extend to the top are set up to the upper portion in lock tongue chamber, two cursor slide A51 joint is to setting up and is in on two slides that correspond in the casing, work as driving motor corotation or when reversing, drive cursor slide A51 is injectd and is reciprocated in the slide. The arrangement mode further limits the movement of the lock bolt body along the slide way, and avoids the twisting of the lock bolt body caused by the rotating acting force generated by the rotating motion of the rotating spring on the lock bolt body.

Preferably, the motor module A3 further includes a speed reducer a34 connected to the driving motor a31, and the output rotation speed of the driving motor a31 and thus the torque to the rotating shaft can be adjusted through the speed reducer a 34. The speed reducer A34 is connected with the rotating shaft A32 or the rotating rod A321.

Preferably, fig. 5 is an exploded view of the speed reducer a34, and in conjunction with fig. 3 and 5, the speed reducer a34 includes support plates arranged in multiple layers, gears engaged between the support plates to adjust a rotation speed ratio, and support columns supporting the support plates. The driving motor a31 is connected with a first rotating gear a341, the first rotating gear a341 is in meshing connection with a first duplicate gear a342, the first duplicate gear a342 is in meshing connection with a second duplicate gear a343, the second duplicate gear a343 is in meshing connection with a third duplicate gear a345, the third duplicate gear a345 is in meshing connection with a fourth duplicate gear a346, the fourth duplicate gear a346 is in meshing connection with a second rotating gear a347, and the second rotating gear a is coaxially connected with the rotating shaft a32 or the rotating rod a 321.

The multi-gear transmission arrangement mode reduces the radius of the gear, increases the available space, and has the advantages of constant transmission ratio, high transmission efficiency, reliable and stable work, strong bearing capacity, long service life and compact structure.

Preferably, the supporting plate includes first supporting plate B1 second supporting plate B2 and third supporting plate B3 have also been arranged in the interlude between the gear, pressure has been undertaken in the setting of first supporting plate B1, second supporting plate B2 and third supporting plate B3, will motor element A3 sets up in layers, the hierarchical processing of structure, has avoided the direct contact of spare part, has reduced frictional loss, has prolonged the life of spare part.

Preferably, a plurality of first support columns Z1 are disposed between the first support plate B1 and the second support plate B2 for supporting, the shape, number and arrangement position of the first support columns Z1 are not fixed, the shape may be a column, a table, a prism, etc., the arrangement position may be four corners of the support plates, or may be diagonal arrangement, in this embodiment, two first support columns Z1 are disposed at the diagonal of the second support plate B2. Similarly, a second supporting column Z2 is also arranged at the opposite corner of the third supporting plate B3, the second supporting column Z2 is the same as the first supporting column Z1, and details are omitted here, and by arranging the first supporting column Z1 and the second supporting column Z2, the motor assembly a3 can be given better supporting stability, the structure of the motor assembly a3 is clear, and later-stage disassembly maintenance and replacement of parts are facilitated.

Preferably, a plurality of apertures have all been seted up on first backup pad B1, second backup pad B2 and the third backup pad B3, the aperture both can connect fixedly the backup pad with the support column also can connect the gear can also play simultaneously and accelerate the giving off of heat between the spare part of motor element A3, greatly reduced the fault probability that produces because of the frictional heating between the spare part, better assurance motor element A3 work efficient goes on.

Preferably, the driving motor a31 rotates forward and drives the rotating shaft a32 to rotate, the rotating shaft a32 drives the first rotating gear a341 to rotate, the first rotating gear a341 then drives the first duplicate gear a342 to rotate, the first duplicate gear a342 drives the second duplicate gear a343 to rotate, the second duplicate gear a343 drives the third duplicate gear a345 to rotate, the third duplicate gear a345 drives the fourth duplicate gear a346 to rotate, the fourth duplicate gear a346 drives the second rotating gear a347 to rotate, the second rotating gear a347 starts to drive the rotating shaft a321 to rotate, the rotating shaft a321 then drives the rotating sleeve a322 to rotate, since the rotating spring a33 is hooked on the radial protrusion a1, that is, the rotating sleeve a322 rotates and simultaneously drives the rotating spring a33 to rotate, thereby compressing the rotating spring a33, the compression of the rotating spring a33 will press the latch body a5 away from the drive motor a31 along the axis of the rotating lever a 321.

When driving motor A31 reverses, dwang A321 drives the reversal of rotating sleeve A322, the reversal of rotating sleeve A322 drives swivel spring A33, swivel spring A33 will promote the latch body A5 orientation driving motor A31 removes.

Through the arrangement, the driving motor can drive the lock bolt body to rotate to enable the lock bolt body to move along the axial direction of the lock bolt body, and the lock bolt body can move up and down by controlling the positive rotation and the negative rotation of the driving motor, so that the lock bolt is clamped in the lock groove (lock block) or leaves the lock groove (lock block), and the purposes of locking and unlocking are achieved.

Preferably, as shown in fig. 6, the control module a4 includes a printed circuit board C00, a processor chip C01 disposed on the printed circuit board C00, and a motor interface electrically connected to the processor chip C01, and the motor interface is electrically connected to the driving motor a31 through a cable, thereby controlling the driving motor a31 to rotate forward or backward.

Preferably, the processor chip C01 is electrically connected with a bluetooth module C02 and a speaker C03, and the processor chip C01 is electrically connected with a 5-core communication interface C04, a motor interface C05, an eight-core keyboard interface C06, a six-core power supply and a door sensor interface C07. Through the bluetooth module C02, the processor chip C01 can receive bluetooth information for unlocking transmitted from an external device (e.g., a mobile phone), and when the unlocking password information included in the bluetooth information is the same as the password in the lock, the lock can be unlocked, otherwise, the lock cannot be unlocked. The password in the lock can receive password setting information from the communication module through the communication interface C04, so that the password in the lock and the unlocking password can be dynamically updated, when a user needs to unlock the lock, a request can be sent to the control center through the mobile phone, when the control center identifies that the mobile phone is a legal user, the password can be generated and respectively sent to the mobile phone of the user and the communication module, the communication module inputs the password into the processor chip of the control module to be used as the password in the lock, the mobile phone of the user inputs the password into the processor chip of the control module to be used as the unlocking password in a Bluetooth mode, and when the password in the lock and the unlocking password are compared and verified through the processor chip to be consistent, the unlocking can be realized.

When the lock needs to be unlocked, the processor chip C01 controls the driving motor to rotate through the motor interface C05 so as to unlock the lock. The power supply and door magnetic interface C07 comprises a power supply interface, namely a positive terminal and a negative terminal of a direct current power supply, a storage battery can be connected through the interface, the door magnetic interface also comprises two wiring ports, whether the door magnetic belongs to a closing state or an opening state is sensed through the interface, when the processor chip C01 controls the driving motor to unlock through the motor interface C05, if the processor chip C01 detects that the door magnetic is in the opening state from the door magnetic interface C07, the lock is indicated to be possibly in an illegal prizing state, and therefore the loudspeaker is controlled to give out alarm sound.

Preferably, the control module a4 controls the driving motor a31 to rotate forward and backward in the same time each time, and controls the deformation length of the rotating spring a33 to change from the first deformation state to the second deformation state in the bolt cavity to be the same as the deformation length of the rotating spring to change from the second deformation state to the first deformation state.

Preferably, the first deformation state is a free state of the rotating spring, the second deformation state is a maximum compression state of the rotating spring, or the first deformation state is a free state of the rotating spring, and the second deformation state is a compression state of the rotating spring, or the first deformation state is a tension state of the rotating spring, and the second deformation state is a maximum compression state of the rotating spring, or the first deformation state is a tension state of the rotating spring, and the second deformation state is a compression state of the rotating spring. The deformation length of the rotary spring under two states is the same, so that the accuracy of the rotary spring for pushing and controlling the lock tongue body is kept, the accurate control of the length of a moving path of the lock tongue is also guaranteed, and the problems of power consumption increase, fault increase, short service life and the like caused by the fact that the deformation length is inconsistent are effectively solved.

Preferably, in combination with fig. 7 and 8, the upper portion of the outer case a1 is provided with two connecting pieces a11 with connecting holes a12, a first transverse plate A13 and a second transverse plate A14 for receiving the motor assembly A3 are further arranged inside the outer shell A1, the two first transverse plates a13 are symmetrically arranged on the side walls of the two sides of the inside of the outer shell a1, the two second transverse plates a14 are also symmetrically arranged on the side walls at two sides of the inside of the outer shell a1, respectively, a space exists between the two first transverse plates a13, a space also exists between the two second transverse plates a14, the first cross plate A13 is above the second cross plate A14, the width of the first cross plate A13 is smaller than the width of the second cross plate A14, the upper surface of the second cross plate A14 holds the motor assembly A3, meanwhile, the two first transverse plates A13 define the position and fix the position of the motor assembly A3 by using the space between the two first transverse plates A13. The interval between the first transverse plates A13 is the same as the transverse width of the motor assembly A3, namely, the first transverse plates A13 can be clamped, so that the motor assembly A3 is prevented from swinging in the horizontal direction in the machine cavity, and the working stability of the motor assembly A3 is enhanced.

The upper portion of the inner shell A2 is provided with a clamping groove A21, the upper portion of the outer shell A1 is provided with a convex buckle A15 at a position corresponding to the clamping groove A21, and the convex buckle A15 is connected with the clamping groove A21 in a clamping manner, so that the integral fixed connection of the inner shell A2 and the outer shell A1 is ensured, the connection firmness of the inner shell A2 and the outer shell A1 is enhanced, and reliable protection is provided for parts in the machine cavity formed by connecting the inner shell A2 and the outer shell A21.

Preferably, a gap is formed between the clamping groove a21 and the convex buckle a15 after the clamping connection, and the gap can intensively guide cables electrically connected on the printed circuit board, so that the cables are arranged in order, the maintenance of later-stage line faults is facilitated, and the occupied space of the cables can be reduced.

Further preferably, the inner housing a2 has two fixing arms a22 extending into the outer housing a1, an arm cavity a24 for fixing the driving motor a31 is formed between the two fixing arms a22, the shape of the arm cavity a24 is matched with the shape of the driving motor a31, the motor assembly A3 is clamped right and the stability of the motor assembly A3 is improved, and the fixing arm a22 extends into the outer housing a1 and abuts against the housing wall inside the outer housing a1, so that the shaking of the motor assembly A3 in the horizontal direction inside the outer housing a1 is avoided, and the stability of the motor assembly A3 during operation is further improved.

The two sides of the arm cavity A24 are provided with the slide ways A23. The slide arm a51 slides along the slide way a23, and the arrangement of the slide arm a51 and the slide way a23 can limit the sliding direction of the bolt body a5, so that the driving motor a31 can more naturally and smoothly drive the bolt body a5 to move smoothly, i.e. smoothly drive the bolt a54 to move smoothly.

Preferably, lubricating oil is coated on the slideway A23 to reduce the friction resistance between the slideway A23 and the slide arm A51 and slow down the abrasion of the slideway A23 and simultaneously play roles of cooling and preventing pollution.

Further preferably, combine fig. 4 and fig. 9, in the utility model discloses another embodiment of electronic lock core, the lock tongue body A6 is square, and its spring bolt A61 is the cylindricality, the cover is equipped with waterproof circle A62 for it is waterproof on the spring bolt A61, and the theory of operation is the positive and negative drive of above-mentioned driving motor makes this lock tongue body A6's spring bolt A61 remove, and it is no longer repeated here.

Based on above embodiment, the utility model discloses an electronic lock core, including the casing, and arrange in inside motor element, the control of casing the control module of motor element function and with the lock tongue body that motor element connects, the lock tongue body includes the lock tongue chamber and sets up the spring bolt of lock tongue chamber lower part, the lock tongue intracavity is provided with rotating spring. The motor assembly comprises a driving motor and a rotating shaft, the driving motor is connected with the rotating shaft, and the rotating shaft penetrates through the lock tongue cavity and is sleeved with the rotating spring. When the driving motor rotates forwards or backwards, the rotating shaft rotates to drive the rotating spring to rotate, compress or stretch, the rotating spring is compressed or stretched to generate deformation to drive the bolt body to move up and down along the axial direction of the rotating shaft, and therefore the purposes of unlocking and locking are achieved. The electronic lock cylinder is simple in electromechanical composition structure, accurate in lock tongue operation control, small in power consumption, low in failure rate and long in service life.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the protection scope of the present invention.

Claims (10)

1. An electronic lock core is characterized by comprising a shell, a motor assembly, a control module and a lock tongue body, wherein the motor assembly is arranged in the shell, the control module controls the motor assembly to operate, the lock tongue body is connected with the motor assembly, the lock tongue body comprises a lock tongue cavity and a lock tongue arranged at the lower part of the lock tongue cavity, and a rotating spring is arranged in the lock tongue cavity; the motor assembly comprises a driving motor and a rotating shaft, the driving motor is connected with the rotating shaft, and the rotating shaft penetrates through the lock tongue cavity and is sleeved with the rotating spring;

when the driving motor rotates forwards or backwards, the rotating shaft rotates to drive the rotating spring to rotate, compress or stretch, and the rotating spring is compressed or stretched to generate deformation to drive the lock tongue body to move up and down along the axial direction of the rotating shaft.

2. The electronic lock core according to claim 1, wherein the lower end of the rotary spring is connected with the bottom of the lock tongue cavity in a clamping or fixed manner, the upper end of the rotary spring is connected with the rotating shaft in a clamping or fixed manner, two sliding arms extending upwards are arranged on the upper portion of the lock tongue cavity, the two sliding arms are connected with two corresponding sliding ways arranged in the shell in a clamping manner, and when the driving motor rotates forwards or backwards, the sliding arms are driven to be limited on the sliding ways to move upwards and downwards.

3. The electronic lock core of claim 2, wherein a space is left between adjacent wires of the rotational spring.

4. The electronic lock core according to claim 2 or 3, wherein the control module controls the driving motor to rotate forward and backward in the same time each time, and controls the deformation length of the rotating spring for changing the rotating spring from the first deformation state to the second deformation state in the lock tongue cavity to be the same as the deformation length of the rotating spring for changing the rotating spring from the second deformation state to the first deformation state.

5. The electronic lock core according to claim 1, wherein the motor assembly further comprises a reducer connected to the driving motor, the reducer is connected to the rotating shaft, two symmetrical radial protrusions are disposed on two sides of an outer surface of the rotating shaft, and the rotating spring is clamped to the two radial protrusions.

6. The electronic lock cylinder according to claim 5, wherein the speed reducer includes support plates arranged in multiple layers, gears engaged between the support plates for adjusting a rotation speed ratio, and support columns supporting the support plates; the driving motor is connected with a first rotating gear, the first rotating gear is meshed with a first duplicate gear, the first duplicate gear is meshed with a second duplicate gear, the second duplicate gear is meshed with a third duplicate gear, the third duplicate gear is meshed with a fourth duplicate gear, the fourth duplicate gear is meshed with a second rotating gear again, and the second rotating gear is coaxially connected with the rotating shaft.

7. The electronic lock cylinder of claim 1, wherein the control module comprises a printed circuit board, a processor chip disposed on the printed circuit board, and a motor interface electrically connected to the processor chip, the motor interface being electrically connected to the driving motor through a cable, thereby controlling the driving motor to rotate in the forward or reverse direction.

8. The electronic lock core of claim 2, wherein the housing comprises an outer housing and an inner housing, the latch body, the control module and the motor assembly electrically connected to the control module are disposed in a housing cavity formed by the outer housing and the inner housing.

9. The electronic lock core according to claim 8, wherein two connecting plates with connecting holes are arranged on the upper portion of the outer shell, a first transverse plate and a second transverse plate for supporting the motor assembly are further arranged inside the outer shell, the first transverse plates are symmetrically arranged on the side walls on two sides inside the outer shell, the second transverse plates are symmetrically arranged on the side walls on two sides inside the outer shell, a gap exists between the two first transverse plates, a gap also exists between the two second transverse plates, the first transverse plates are arranged above the second transverse plates, the width of the first transverse plates is smaller than that of the second transverse plates, and the gap between the first transverse plates is the same as the transverse width of the motor assembly.

10. The electronic lock core according to claim 9, wherein a slot is disposed on an upper portion of the inner housing, a protruding buckle is disposed on a position of the upper portion of the outer housing corresponding to the slot, the protruding buckle is connected with the slot in a snap-fit manner, the inner housing has two fixing arms extending into the outer housing, an arm cavity for fixing the driving motor is formed between the two fixing arms, the shape of the arm cavity is adapted to the shape of the driving motor, and the slide ways are disposed on two side edges of the arm cavity.