Intelligent lock body of locked-rotor-free current structure for unlocking

Abstract

An intelligent lock body of a locked-rotor-free current structure for unlocking relates to the technical field of intelligent locks and is characterized in that a clutch is arranged on a lock lower shell and located between a latch bolt assembly and a differential driving assembly, and the differential driving assembly is arranged on the front side of a main spring bolt large dragging plate and is in transmission connection with the main spring bolt large dragging plate; the pull rod is arranged on the rear side of the main spring bolt carriage, the end of the pull rod is in sliding meshing with the clutch, a circuit board is fixed in the lock lower shell and located on the right side of the latch bolt assembly, a Hall element A and a Hall element B are arranged on the two sides of the lower portion of the circuit board respectively, and the Hall element A and the Hall element B make contact with a magnet on the main spring bolt carriage respectively. When the lock is unlocked and locked, the magnet at the tail end of the main spring bolt carriage triggers signals with the Hall element A and the Hall element B respectively, the control circuit cuts off a power supply of the motor, the spring bolt carriage which is not in place instantly drives the spring bolt to completely stretch out or retract under the action of the torsion spring, and the purpose of no locked-rotor current is achieved by combining with a power failure signal generated in advance.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent locks, and particularly relates to an intelligent lock body with a non-stalled current structure for unlocking. Background Art

[0002] At present, there are mainly two structures for driving unlocking and locking in an intelligent lock body by a motor reducer. One is a simple independent power group installed inside the rear panel of a fully automatic lock, or a simple built-in drive group connected to the output shaft of the motor. Both rely on a high-level signal sent by an electronic main board to drive the motor until it cannot rotate, and then a large current generated by the motor is fed back to the sensor on the electronic main board. After detection, a control signal is sent to stop the motor from rotating. Such products often consume too much power during use, damaging the battery and accelerating severe wear of the gears. In both of the above two structures, there is a problem that the motor lock body may suddenly lose power and get stuck during operation, making it impossible to unlock normally, posing a relatively large safety hazard. Moreover, the existing drive group usually consists of a motor, a worm and worm gear assembly, and a large end wheel. When in use, the motor drives the worm and worm gear to rotate, and the worm engages with the large end wheel. When the motor loses power, the worm and worm gear assembly stops rotating, and the large end wheel is in a stuck state where it cannot rotate, which brings an unsafe hidden danger to the user's emergency escape from the indoor, and the reliability is relatively low. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a non-stalled current structure for unlocking an intelligent lock, with a reasonable and standardized structure and convenient use.

[0004] The technical solution adopted by the present invention is as follows: An intelligent lock body with a non-stalled current structure for unlocking includes a clutch, a differential drive assembly, a bevel tongue assembly, a main lock tongue large drag plate, a pull rod, and a motor reduction box. The clutch is arranged on the lower housing of the lock and is located between the bevel tongue assembly and the differential drive assembly. The differential drive assembly is arranged on the front side of the main lock tongue large drag plate and is in transmission connection with the main lock tongue large drag plate. The pull rod is arranged on the rear side of the main lock tongue large drag plate, and the end of the pull rod is slidably engaged with the clutch. A circuit board is fixed inside the lower housing of the lock and on the right side of the bevel tongue assembly. Hall element A and Hall element B are respectively arranged on both sides of the lower part of the circuit board. Hall element A and Hall element B are respectively in contact with the magnets on the main lock tongue large drag plate. The outer moving wheel on the motor reduction box is in meshing transmission with the differential drive assembly.

[0005] The clutch includes an inner single, an upper shift fork and a lower shift fork. The inner single is a hollow variable-diameter shaft structure with a circle of limiting ring provided on the outer edge of the middle part. The center of the inner single is set as a square hole matching the square handle rod. The outer edge of the inner single is respectively provided with an upper convex arm, a lower convex arm, a driving arm and a boss; the upper convex arm and the lower convex arm cooperate with the pull rod to drive the pull rod; the driving arm cooperates with the differential drive assembly; the upper shift fork and the lower shift fork are respectively rotatably provided on the outer edges of both ends of the inner single through the center hole, and the upper parts of the upper shift fork and the lower shift fork are correspondingly provided with a rotating arm matching the oblique tongue assembly, and a shift tooth is also provided on the outer edge of the upper shift fork on the side opposite to the rotating arm; The specific structure of the inner single clutch is as follows: the outer edge of the limiting ring near the rear end is respectively provided with an upper convex arm and a lower convex arm of the driving pull rod, and the outer edge near the front side is provided with a driving arm that cooperates with the differential drive assembly; the two sides of the limiting ring are symmetrically provided with bosses along the outer edge of the inner single axis; The center holes of the upper and lower shift forks include a central circular hole and a fan-shaped groove symmetrically extending outward from the outer edge of the circular hole and matching the inner single upper boss. A copper sleeve A is provided between the upper shift fork and the lock housing.

[0006] The differential drive assembly includes an upper half wheel, a lower half wheel, a center pin shaft, an upper return torsion spring and a lower return torsion spring; the upper half wheel and the lower half wheel are both special-shaped half-tooth plate structures, the upper half wheel is provided with a U-shaped toggle groove that cooperates with the shifting teeth of the clutch upper fork; the lower half wheel is provided with a toggle arm that cooperates with the single upper driving arm in the clutch; the lower half wheel is respectively provided with a movable pin and a fixed pin; the center pin shaft passes through the upper half wheel and the lower half wheel to overlap the upper half wheel and the lower half wheel on the front side of the main lock tongue large drag plate; the upper return torsion spring is provided between the upper half wheel and the lower half wheel, and the lower return torsion spring is provided between the main lock tongue large drag plate and the lower half wheel; The outer edge of the upper half wheel includes an arc-shaped gear segment and an arc segment, and the gear segment is respectively meshed with the lock core rotating gear and the drive gear on the motor reduction box in the lock body, and a U-shaped toggle groove is provided on the outer edge of the arc segment. The U-shaped toggle groove includes a single tooth and a half tooth, and the U-shaped toggle groove cooperates with the shifting tooth of the shift fork on the clutch; a step groove matching the outer shape is provided on the front side of the upper half wheel, and a protruding shaft hole, an arc slide groove and a limit groove are provided on the step groove; the lower half wheel is a flat plate structure, and an arc-shaped gear segment is also provided on the outer edge of the lower half wheel. The gear segment of the lower half wheel is meshed with the drive gear on the motor reduction box in the lock body, and the gear segment A toggle arm is protruding from the outer edge of the corresponding end and is matched with the single upper driving arm in the clutch, and the outer end of the toggle arm is in the shape of a raised arc; the rear end of the movable pin on the lower half wheel is located in the vertical slide groove of the large drag plate of the main lock tongue, and the front end of the movable pin does not protrude from the front side of the lower half wheel; the front end of the fixed pin is located in the arc-shaped slide groove of the upper half wheel, and the rear end of the fixed pin does not protrude from the rear side of the lower half wheel; a hole corresponding to the upper shaft hole of the upper half wheel is provided on the lower half wheel; the front end of the center pin shaft is set in the shaft hole of the upper half wheel through a bearing, and the rear end passes through the corresponding hole on the lower half wheel and the horizontal long slide groove on the large drag plate of the main lock tongue through a shaft sleeve and is fixed to the rear housing of the lock; The upper reset torsion spring is arranged on the outer edge of the shaft hole of the upper half wheel through the copper sleeve B, one end of the upper reset torsion spring is installed in the limit groove on the upper half wheel, and the other end is connected to the fixed pin of the lower half wheel; the lower reset torsion spring is arranged on the rear side of the main lock tongue large slide plate through the pin shaft, one end of the lower reset torsion spring is hooked on the lower side of the main lock tongue large slide plate, and the other end is fixed on the rear end of the movable pin of the lower half wheel.

[0007] The inclined bolt assembly includes an inclined bolt, a movable rod, a spring and a sliding end plate; the movable rod is slidingly arranged in the mounting groove of the rear shell of the lock, the inclined bolt and the sliding end plate are respectively arranged on the two ends of the movable rod, the spring is arranged on the outer edge of the movable rod between the mounting groove and the rear end of the inclined bolt, and the rear side of the sliding end plate is slidingly arranged in the limiting sliding groove of the rear shell of the lock; the rotating arms of the upper shift fork and the lower shift fork are respectively located on the front and rear sides of the movable rod and are arranged corresponding to the sliding end plate; the rotating arms of the upper shift fork and the lower shift fork are used to shift the sliding end plate to drive the inclined bolt to extend and retract.

[0008] A fixing pin is provided on the main lock tongue large slide plate, and a pull rod is provided on the rear side of the main lock tongue large slide plate. The pull rod has a sickle-shaped structure, and a pin shaft is provided at the corner of the upper end of the pull rod. The upper end pin shaft of the pull rod and the front end of the fixing pin on the main lock tongue large slide plate are respectively fixedly connected to the two ends of the torsion spring. An elliptical slide is provided at the lower end of the pull rod, and the elliptical slide is provided on the sky and earth rod connecting pin on the main lock tongue large slide plate.

[0009] The upper side and lower side of the upper end of the pull rod are set at an angle, with an arc transition at the vertex. The upper side is the locking force point and cooperates with the upper convex arm inside the clutch, and the lower side is the unlocking force point and cooperates with the lower convex arm.

[0010] The motor speed reducer includes a lower cover, an upper cover, a motor, and a bridge wheel. The lower cover and the upper cover are fixedly connected by screws B and locking screws in a plurality of screw holes at the edge. The motor is fixed in the middle of the extension plate at the lower part of the lower cover. An installation hole is provided in the middle of the extension plate, and screw holes are respectively provided on both sides of the installation hole. The motor is fixedly connected to the extension plate by screws A in the screw holes on both sides. The output shaft of the motor passes through the installation hole and is located inside the lower cover. Inside the lower cover, there are recess B, recess A, and a bushing arranged in sequence from front to back. A terminal large wheel assembly is connected to recess B. Recess A is located at the center of the concave surface in the middle of the lower cover. The concave surface is in an inverted "8" shape. A convex V-shaped block is fixed at the upper concave surface. The two sides of the rear edge of the V-shaped block are inclined surfaces, and a horizontal surface is connected between the two inclined surfaces. A swing shaft is fixed in recess A. A conical spring, a middle hole of the swing member, and a central hole of the large wheel are sequentially passed through the swing shaft from bottom to top. The small diameter section of the conical spring is placed downward and contacts the inner surface of the lower cover, and the large diameter section of the conical spring contacts the lower surface of the swing member. Openings are provided on both sides of the central hole of the large wheel, and a copper sleeve C is fixed in the openings. A large wheel magnet is fixed in the copper sleeve C. Convex columns are provided on both sides of the upper surface of the swing member, and a pendulum wheel is rotatably connected to each convex column. The two sides of the upper surface of the swing member are respectively limited by the inclined surfaces on both sides of the lower surface of the V-shaped block. The large wheel stacking wheels under the large wheel are respectively engaged with the two pendulum wheels. Among them, the swing shaft is rotatably connected to the swing member. The swing shaft is the fulcrum of the swing member and passes through the middle hole of the swing member. The pendulum wheels on the convex columns on both sides of the swing member can swing freely. A bridge wheel connected by a bridge wheel shaft is provided on the bushing. The bridge wheel stacking wheel under the bridge wheel is engaged with the large wheel, and the bridge wheel is driven and connected by the motor.

[0011] The described terminal large wheel assembly includes a terminal large wheel, a stepped wheel shaft, a lower bearing, and an upper bearing. The terminal large wheel is engaged with any one of the pendulum wheels. A lower bearing is connected in recess B. The lower stepped shaft section of the stepped wheel shaft passes through the terminal large wheel and is connected to the central hole of the lower bearing. A limiting plane is provided on the lower stepped shaft section, and the limiting plane is arranged in cooperation with the plane in the central hole of the terminal large wheel. The upper stepped shaft section of the stepped wheel shaft passes through the upper bearing in the upper cover and is fixedly connected to an outer moving wheel outside the upper cover. A limiting plane is provided on the upper stepped shaft section, and the limiting plane is arranged in cooperation with the plane on the central hole of the outer moving wheel. The outer moving wheel is used for meshing and driving with a differential drive assembly in the lock body.

[0012] A turbine shaft is fixed in the shaft hole on one side of the lower part of the lower cover. A turbine is rotatably connected to the turbine shaft. A worm fixed on the motor output shaft is meshed with the turbine for driving. The bridge wheel is engaged with the turbine stacking wheel on the upper surface of the turbine. The turbine and the turbine stacking wheel are of an integral structure and are concentrically arranged, and the outer diameter of the turbine stacking wheel is smaller than the outer diameter of the turbine.

[0013] Due to adopting the above technical scheme, the present invention has the following advantages: 1. The intelligent lock body with a non-blocking current structure for unlocking of the present invention enables a high degree of overall structural cooperation and good stability inside the lock. When operating the indoor handle, the outer moving wheel on the motor reduction box and the lock core rotating gear can be quickly linked, and the unlocking and locking are rapid and smooth, making it convenient to use. Moreover, by setting a circuit board and Hall elements on the circuit board, when unlocking or locking, the magnets at the tail end of the main lock tongue large drag plate respectively contact Hall element A and Hall element B. When the distance between the magnet and Hall element A or Hall element B is within the effective distance of 1 - 5 mm, Hall element A or Hall element B can be triggered to generate a signal, and the Hall signal triggers the control circuit to cut off the power supply of the motor, so that the motor stops rotating in advance. The unarrived lock tongue large drag plate drives the lock tongue to fully extend or retract instantaneously under the action of the torsion spring, combined with the pre-generated power-off signal, achieving the purpose of non-blocking current.

[0014] 2. The intelligent lock body with a non-blocking current structure for unlocking of the present invention is provided with a V-shaped block inside the lower cover. The swing piece on the swing piece shaft is limited by the two inclined surfaces of the V-shaped block when swinging left and right, avoiding the situation that when the swing piece is not limited, the two swing wheels bear a large angular force and the teeth on the two swing wheels are instantly crushed one by one. The two swing wheels and the large wheel stacked wheel form an automatic bidirectional clutch structure, making up for the self-locking defect when the worm gear meshes with the worm. After the motor stops rotating, there will be a reverse drive signal provided by the control main board after a few seconds, so that the two swing wheels no longer mesh with the end large wheel, preventing the end large wheel from being stuck and unable to rotate. The structure of the present invention is simple, compact and highly reliable. Through the combined use of the swing piece and the V-shaped block for limiting, it is safe and reliable, and fundamentally solves the drawbacks of the safety technology in the lock industry. 3. The intelligent lock body with a non-blocking current structure for unlocking of the present invention is provided with a conical spring on the swing piece shaft. The conical spring always has a thrust on the swing piece, making the two swing wheels on the swing piece mesh with the large wheel stacked wheel, avoiding the drawback that the turbine, turbine stacked wheel and swing piece rotate idly, resulting in the entire external reduction device losing its function for opening and closing the lock body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the closed state of the present invention.

[0016] Figure 2 It is a schematic structural diagram of the unlocked state of the present invention.

[0017] Figure 3 It is a schematic diagram of the connection of the differential drive assembly, the pull rod and the main lock tongue large drag plate of the present invention.

[0018] Figure 4 It is Figure 3 A schematic diagram in another direction.

[0019] Figure 5 It is a partial schematic diagram showing the connection of the clutch, pull rod, bevel tongue assembly and large carriage of the present invention.

[0020] Figure 6 It is an exploded schematic diagram of the clutch of the present invention.

[0021] Figure 7 It is an exploded schematic diagram of the differential drive assembly of the present invention.

[0022] Figure 8 It is a schematic diagram of the pull rod of the present invention.

[0023] Figure 9 It is a structural schematic diagram of the motor reduction box of the present invention.

[0024] Figure 10 It is a structural schematic diagram of the large wheel of the present invention.

[0025] Figure 11 It is a structural schematic diagram of the lower cover of the present invention.

[0026] In the figure: 1-clutch, 11-inner single, 111-upper convex arm, 112-lower convex arm, 113-driving arm, 114-boss, 12-upper shift fork, 121-rotating arm, 122-shifting tooth, 123-copper sleeve A, 13-lower shift fork, 2-differential drive assembly, 21-upper half wheel, 211-U-shaped shifting groove, 212-shaft hole, 213-arc-shaped slide groove, 214-limiting groove, 22-lower half wheel, 221-shifting arm, 222-moving pin, 223-fixed pin, 23-center pin shaft, 24-upper reset torsion spring, 241-copper sleeve B, 25-lower reset torsion spring, 3-oblique tongue assembly, 31-oblique tongue, 32-moving rod, 33- Spring, 34-sliding end plate, 4-main lock tongue large drag plate, 41-fixing pin, 42-horizontal slide, 43-vertical slide, 44-magnet, 5-pull rod, 51-elliptical slide, 52-torsion spring, 6-circuit board, 61-Hall element A, 62-Hall element B, 7-motor reduction box, 701-external driving wheel, 702-upper cover, 703-upper bearing, 704-large wheel magnet, 705-copper sleeve C, 706-large wheel, 707-balance wheel, 708-stepped wheel shaft, 709-end large wheel, 710-screw B, 711-locking screw, 712-lower bearing, 713-lower cover, 714-worm, 715-screw A, 716-motor, 717-turbine shaft, 718-turbine, 719-turbine stacked wheel, 720-bridge wheel shaft, 721-conical spring, 722-swinging member shaft, 723-swinging member, 724-bridge wheel stacked wheel, 725-bridge wheel, 726-large wheel stacked wheel, 727-concave hole B, 728-V-block, 729-concave surface, 730-concave hole A, 731-sleeve, 732-shaft hole, 733-screw hole, 734-mounting hole, 735-extension plate, 8-lock core rotating gear, 9-sky and earth rod, 10-sky and earth rod connecting pin. DETAILED DESCRIPTION

[0027] The present invention will be further explained below with reference to the accompanying drawings and embodiments, which should not be used to limit the scope of protection of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0028] Combined with attachment Figures 1-10An intelligent lock body with a non-stalled current structure for unlocking includes a clutch 1, a differential drive component 2, a latch bolt component 3, a main latch bolt large slide plate 4, a pull rod 5 and a motor reduction box 7; the clutch 1 is arranged on the lower housing of the lock and is located between the latch bolt component 3 and the differential drive component 2, the differential drive component 2 is arranged on the front side of the main latch bolt large slide plate 4 and is transmission-connected to the main latch bolt large slide plate 4, the pull rod 5 is arranged on the rear side of the main latch bolt large slide plate 4 and the end of the pull rod 5 is slidingly engaged with the clutch 1, a circuit board 6 is fixed in the lower housing of the lock and on the right side of the latch bolt component 3, a Hall element A61 and a Hall element B62 are respectively provided on both sides of the lower part of the circuit board 6, the Hall element A61 and the Hall element B62 are respectively in contact with the magnet 44 on the main latch bolt large slide plate 4, and the outer driven wheel 701 on the motor reduction box 7 is meshed with the differential drive component 2 for transmission.

[0029] The clutch 1 includes an inner single 11, an upper shift fork 12 and a lower shift fork 13. The inner single 11 is a hollow reducer shaft structure with a limit ring on the outer edge of the middle part. The center of the inner single 11 is set as a square hole that matches the square handle. The outer edge of the limit ring near the rear end is respectively provided with an upper convex arm 111 and a lower convex arm 112, and the outer edge near the front side is provided with a driving arm 113. The two ends of the limit ring are symmetrically provided with bosses 114 along the axial outer edge of the inner single 11. The upper convex arm 111 and the lower convex arm 112 cooperate with the pull rod 5 to drive the pull rod 5; the driving arm 113 and the differential Speed drive assembly 2 cooperates; the center hole of the upper shift fork 12 and the lower shift fork 13 includes a circular hole and a fan-shaped groove symmetrically extending outward from the outer edge of the circular hole and cooperating with the upper boss 114 of the inner single 11. The upper shift fork 12 and the lower shift fork 13 are respectively rotatably set on the outer edges of both ends of the inner single 11 through the center hole. The upper part of the upper shift fork 12 and the lower shift fork 13 are correspondingly provided with a rotating arm 121 that cooperates with the oblique tongue assembly 3. A shift tooth 122 is also provided on the outer edge of the upper shift fork 12 on the side opposite to the rotating arm 121, and a copper sleeve A123 is provided between the upper shift fork 12 and the lock housing.

[0030] The differential drive assembly 2 includes an upper half wheel 21, a lower half wheel 22, a center pin shaft 23, an upper return torsion spring 24 and a lower return torsion spring 25; the upper half wheel 21 and the lower half wheel 22 are both special-shaped half-tooth plate structures, and the outer edge of the upper half wheel 21 includes an arc-shaped gear segment and a circular arc segment. The gear segment is respectively engaged with the lock core rotating gear 8 and the outer driving wheel 701 on the motor reducer in the lock body. A U-shaped toggle groove 211 is provided on the outer edge of the circular arc segment. The U-shaped toggle groove 211 includes a single tooth and a half tooth. The U-shaped toggle groove 211 cooperates with the toggle tooth 122 of the shift fork 12 on the clutch 1; a step groove matching the outer shape is provided on the front side of the upper half wheel 21, and the step groove is provided with a protruding shaft hole 212, an arc-shaped slide groove 213 and a limit groove 214.

[0031] The lower half wheel 22 is of a flat plate structure. An arc gear section is also provided on the outer edge of the lower half wheel 22. The gear section of the lower half wheel 22 meshes with the driving gear 7 on the motor reduction box in the lock body. A toggle arm 221 that cooperates with the driving arm 113 on the single 11 in the clutch 1 is convexly provided on the outer edge at one end corresponding to the gear section. The outer end of the toggle arm 221 is in a convex arc shape; a movable pin 222 and a fixed pin 223 are respectively provided on the lower half wheel 22; the rear end of the movable pin 222 on the lower half wheel 22 is located in the vertical sliding groove 43 of the main lock tongue large drag plate 4, and the front end of the movable pin 222 does not protrude from the front side of the lower half wheel 22. The front end of the fixed pin 223 is located in the arc-shaped sliding groove 213 of the upper half wheel 21, and the rear end of the fixed pin 223 does not protrude from the rear side of the lower half wheel 22; a hole corresponding to the shaft hole 212 on the upper half wheel 21 is provided on the lower half wheel 22; the front end of the central pin shaft 23 is arranged in the shaft hole 212 of the upper half wheel 21 through a bearing, and the rear end passes through the corresponding hole on the lower half wheel 22 and the horizontal sliding groove 42 on the main lock tongue large drag plate 4 through a bushing and is fixed on the rear housing of the lock; the central pin shaft 23 stacks the upper half wheel 21 and the lower half wheel 22 on the front side of the main lock tongue large drag plate 4.

[0032] The upper return torsion spring 24 is arranged between the upper half wheel 21 and the lower half wheel 22, and the lower return torsion spring 25 is arranged between the main lock tongue large drag plate 4 and the lower half wheel 22; the upper return torsion spring 24 is arranged on the outer edge of the shaft hole 212 of the upper half wheel 21 through a copper sleeve B241. One end of the upper return torsion spring 24 abuts in the limit groove 214 on the upper half wheel 21, and the other end is connected to the fixed pin 223 on the lower half wheel 22; the lower return torsion spring 25 is arranged on the rear side of the main lock tongue large drag plate 4 through a pin shaft. One end of the lower return torsion spring 25 is hooked on the lower side edge of the main lock tongue large drag plate 4, and the other end is fixed on the rear end of the movable pin 222 on the lower half wheel 22.

[0033] The inclined tongue assembly 3 includes an inclined tongue 31, a movable rod 32, a spring 33 and a sliding end plate 34; the movable rod 32 is slidably arranged in the installation groove of the rear housing of the lock. The inclined tongue 31 and the sliding end plate 34 are respectively arranged at both ends of the movable rod 32. The spring 33 is arranged on the outer edge of the movable rod 32 between the installation groove and the rear end of the inclined tongue 31. The rear side of the sliding end plate 34 is slidably arranged in the limit sliding groove of the rear housing of the lock; the rotating arms 121 of the upper fork 12 and the lower fork 13 are respectively located on the front and rear sides of the movable rod 32 and are arranged corresponding to the sliding end plate 34; the rotating arms 121 of the upper fork 12 and the lower fork 13 are used to toggle the sliding end plate 34 to drive the inclined tongue 31 to expand and contract.

[0034] A fixed pin 41 is provided on the main lock tongue large slide plate 4; the pull rod 5 is arranged at the rear side of the main lock tongue large slide plate 4. The pull rod 5 has a sickle-shaped structure. The upper side and the lower side of the upper end of the pull rod 5 are arranged at an angle, and the vertex is in arc transition. The upper side is the upper locking force application point and cooperates with the upper convex arm 111 of the single 11 in the clutch 1, and the lower side is the unlocking force application point and cooperates with the lower convex arm 112. A pin shaft is arranged at the upper end corner of the pull rod 5. The upper end pin shaft of the pull rod 5 and the front end of the fixed pin 41 on the main lock tongue large slide plate 4 are respectively fixedly connected to both ends of the torsion spring 52; an elliptical slideway 51 is arranged at the lower end of the pull rod 5. The elliptical slideway 51 is arranged on the upper and lower rod connection pin 10 on the main lock tongue large slide plate 4. The upper and lower rods are respectively slidably arranged on the front and rear sides of the main lock tongue large slide plate 4 through bearings arranged at both ends of the upper and lower rod connection pin 10.

[0035] The motor reduction box 7 includes a lower cover 713, an upper cover 702, a motor 716 and a bridge wheel 725. The lower cover 713 and the upper cover 702 are fixedly connected by screws B710 and locking screws 711 in a plurality of screw holes at the edge. The motor 716 is fixed in the middle of the extension plate 735 at the lower part of the lower cover 713. An installation hole 734 is opened in the middle of the extension plate 735. Screw holes 733 are respectively arranged on both sides of the installation hole 734. The motor 716 is fixedly connected to the extension plate 735 by screws A715 in the screw holes 733 on both sides. The output shaft of the motor 716 passes through the installation hole 734 and is located inside the lower cover 713; inside the lower cover 713, a concave hole B727, a concave hole A730 and a bushing 731 are arranged in sequence from front to back. A terminal large wheel assembly is connected to the concave hole B727. The concave hole A730 is located at the center of the concave surface 729 in the middle of the lower cover 713. The concave surface 729 is in an inverted "8" shape. A raised V-shaped block 728 is fixed at the upper concave surface. The two sides of the rear edge of the V-shaped block 728 are set as inclined surfaces, and a horizontal surface is connected between the two inclined surfaces. A swing piece shaft 722 is fixed in the concave hole A730. A conical spring 721, the middle hole of the swing piece 723 and the central hole of the large wheel 706 are sequentially passed through the swing piece shaft 722 from bottom to top. The small diameter section of the conical spring 721 is placed downward and contacts the inner surface of the lower cover 713. The large diameter section of the conical spring 721 contacts the lower surface of the swing piece 723; openings are arranged on both sides of the central hole of the large wheel 706. A copper sleeve C705 is fixed in the opening. A large wheel magnet 704 is fixed in the copper sleeve C705. Convex columns are arranged on both sides of the upper surface of the swing piece 723. Swing wheels 707 are rotatably connected to the convex columns. The two sides of the upper surface of the swing piece 723 are respectively limited by the inclined surfaces on both sides of the lower surface of the V-shaped block 728. The large wheel stack wheels 726 below the large wheel 706 are respectively engaged with the two swing wheels 707; among them, the swing piece shaft 722 is rotatably connected to the swing piece 723. The swing piece shaft 722 is the fulcrum of the swing piece 723 and is passed through the middle hole of the swing piece 723. The swing wheels 707 on the convex columns on both sides of the swing piece 723 can swing freely. A bridge wheel 725 connected to the shaft sleeve 731 through the bridge wheel shaft 720 is provided. The bridge wheel stacked wheel 724 below the bridge wheel 725 is engaged with the large wheel 706. The bridge wheel 725 is driven and connected by the motor 716.

[0036] The bridge wheel 725 and the bridge wheel stacked wheel 724, the large wheel 706 and the large wheel stacked wheel 726 are all integral structures and concentrically arranged. The outer diameter of the bridge wheel stacked wheel 724 is smaller than the outer diameter of the bridge wheel 725, and the outer diameter of the large wheel stacked wheel 726 is smaller than the outer diameter of the large wheel 706.

[0037] The end large wheel assembly includes an end large wheel 709, a step wheel axle 708, a lower bearing 702 and an upper bearing 703. The end large wheel 709 is meshed with any balance wheel 707, and the lower bearing 702 is connected to the recessed hole B727. The lower step shaft section of the step wheel axle 708 passes through the end large wheel 709 and is connected to the center hole of the lower bearing 702. A limiting plane is provided on the lower step shaft section, and the limiting plane is matched with the plane in the center hole of the end large wheel 709. The upper step shaft section of the step wheel axle 708 passes through the upper bearing 703 in the upper cover 702 and is fixedly connected to the outer moving wheel 701 outside the upper cover 702. A limiting plane is provided on the upper step shaft section, and the limiting plane is matched with the plane on the center hole of the outer moving wheel 701. The outer moving wheel 701 is used to engage and transmit with the differential drive assembly 2 in the lock body.

[0038] A turbine shaft 717 is fixed in the shaft hole 732 on one side of the lower part of the lower cover 713, and a turbine 718 is rotatably connected to the turbine shaft 717. The worm 71418 fixed on the output shaft of the motor 716 is engaged with the turbine 718 for transmission, and the bridge wheel 725 is engaged with the turbine accumulator 719 on the turbine 718. The turbine 718 and the turbine accumulator 719 are an integral structure and are concentrically arranged, and the outer diameter of the turbine accumulator 719 is smaller than the outer diameter of the turbine 718.

[0039] In the locked state, the main lock bolt and the inclined bolt 31 are both in the extended state, the indoor handle is in the horizontal state, the outer driven wheel 701 on the motor reduction box 7 is engaged with the gear segment of the lower half wheel 22 of the differential drive assembly 2, the upper return torsion spring 24 and the lower return torsion spring 25 are both in the open state, the fixing pin 223 of the lower half wheel 22 is located at the distal end of the arc-shaped slide groove 213 of the upper half wheel 21, the toggle arm 221 on the lower half wheel 22 corresponds to the locking point of the clutch inner single 11, the clutch is in the locked state, the gear teeth at the outer end of the gear segment of the upper half wheel 21 are engaged with the lock core rotating gear 8, and the arc-shaped gear segments of the upper half wheel 21 and the lower half wheel 22 have 2-3 teeth correspondingly arranged; When unlocking, the motor reduction box 7 is actuated, and the outer driven wheel 701 outside it first drives the lower half wheel 22 to rotate, and the toggle arm 221 on the lower half wheel 22 moves away from the locking point of the clutch inner single 11. Due to the action of the fixed pin 223, the lower half wheel 22 drives the upper half wheel 21 to rotate together, and the movable pin 222 moves in the vertical slide groove 43 of the main lock tongue large slide plate 4. At the same time, since the rear end of the center pin shaft 23 is located in the horizontal slide groove 42 of the main lock tongue large slide plate 4, the lower half wheel 22 pulls the main lock tongue large slide plate 4 in the direction of lock tongue retraction when rotating, and the magnet 44 on the upper inner end of the main lock tongue large slide plate 4 moves toward the Hall element A61. When the magnet 44 is at an effective distance of 1-5mm from the Hall element A61, the Hall element A61 can be triggered to generate a signal, and the Hall signal triggers the control The main lock tongue big slide plate 4 drives the lock tongue to retract completely under the action of the torsion spring 52, and is combined with the power outage signal generated in advance to achieve the purpose of no stall current.

[0040] When locking is needed again, the outer driven wheel 701 on the motor reduction box 7 first drives the upper half wheel 21 to reverse, and the U-shaped toggle groove 211 on the upper half wheel 21 first toggle the lower toggle tooth 122 of the clutch upper fork 12 back, releasing the spring 33 on the moving rod 32 of the inclined tongue 31, locking the inclined tongue 31 first, and the upper half wheel 21 continues to rotate. When the distal end of the arc groove 213 on the upper half wheel 21 rotates to the position of the fixed pin 223 on the lower half wheel 22, the lower half wheel 22 and the upper half wheel 21 rotate at the same time. After rotating past the overlapping teeth of the lower half wheel 22 and the upper half wheel 21, the outer driven wheel 701 on the motor reduction box 7 rotates to mesh with the lower half wheel 22, driving the lower half wheel 22 to continue rotating to the end of the gear segment. At the same time, since the rear end of the center pin shaft 23 is located in the horizontal groove 42 of the large drag plate 4 of the main lock tongue, the lower half wheel 22 is rotating. When the main lock tongue is pulled outward, the large slide plate 4 is pulled outward, driving the lock tongue to move in the direction of the outer end, so that the magnet 44 on the upper inner end of the large slide plate 4 of the main lock tongue moves toward the Hall element B62. When the magnet 44 is within an effective distance of 1-5mm from the Hall element B62, the Hall element B62 can be triggered to generate a signal. The Hall signal triggers the control circuit to disconnect the power supply of the motor, thereby stopping the motor in advance. At this time, the lock tongue still has a distance of 1-5mm and has not yet reached the locking point. Under the action of the torsion spring 52, the far end of the horizontal slide groove 42 on the large slide plate 4 of the main lock tongue moves to contact the center pin 23 of the differential drive assembly 2, and the large slide plate 4 of the main lock tongue is instantly pulled back to the locking point position. At the same time, the sky and earth rods 9 slidingly arranged on the front and rear sides of the large slide plate 4 of the main lock tongue are also extended respectively to complete the locking. The large slide plate 4 of the main lock tongue drives the lock tongue to fully extend under the action of the torsion spring 52, and combined with the power outage signal generated in advance, the purpose of no stalling current is achieved.

[0041] Among them, the working principle of the motor reduction box 7 is: when the motor 716 receives the high-level signal sent by the lock body electronic motherboard to drive the worm gear to rotate; when the worm gear is driven, the worm 714 on the output shaft of the motor 716 is meshed with the turbine 718 for transmission, driving the turbine stacked wheel 719 to drive the bridge wheel 725 to rotate, the bridge wheel stacked wheel 724 under the bridge wheel 725 is meshed with the large wheel 706, and the large wheel stacked wheel 726 under the large wheel 706 is respectively meshed with the two balance wheels 707, thereby driving the two balance wheels 707 to rotate. To ensure that the two balance wheels 7 07 and the large wheel stacked wheel 726 are always in a meshing state. By installing a conical spring 721 on the swing member shaft 722, the conical spring 721 always has an upward thrust on the swing member 723. After the upper cover 702 and the lower cover 713 are buckled together, the outer end of the large wheel 706 is pressed tightly against the inner surface of the upper cover 702. Under the thrust of the conical spring 721, friction is generated between the outer surface of the large wheel 706 and the inner surface of the upper cover 702. Therefore, the two balance wheels 707 on the swing member 723 are always in a meshing state with the large wheel stacked wheel 726. Specifically, the two balance wheels 707 continuously swing left and right. During the swinging process, when strongly driven by the engagement of the large wheel stacked wheel 726, an angular shear force will be generated. This angular shear force will cause an infinite angular force to be generated between the balance wheel 707 and the end large wheel 709, which can instantly crush the teeth on the large wheel stacked wheel 726 one by one. Therefore, a convex V-shaped block 728 is provided inside the lower housing. The inclined surfaces on both sides of the rear edge of the V-shaped block 728 limit the unrestricted swinging of the swinging member 723, enabling stable rotation between the large wheel stacked wheel 726 and the end large wheel 709. When the two balance wheels 707 rotate, one rotates forward and the other rotates backward. One of the balance wheels 707 will automatically reverse-engage the end large wheel 709, and the end large wheel 709 drives the stepped wheel shaft 708 to rotate. Thus, the outer moving wheel 701 on the stepped wheel shaft 708 meshes with the differential drive assembly 2 in the lock body for transmission, thereby completing the horizontal movement work of unlocking and locking the main lock tongue.

[0042] When the motor 716 loses power, it will provide a reverse drive signal, causing the balance wheels 707 and the end large wheel 709 to no longer engage. The two balance wheels 707 are in a free state, causing the end large wheel 709 to rotate idly. In case of an emergency indoors, pressing down the handle on the door lock can safely open the door, avoiding the situation where the end large wheel is stuck and the door lock cannot be opened in the prior art. The present invention is safe and reliable, simple and convenient to operate, and can quickly unlock and lock.

[0043] Among them, copper sleeves C705 are fixed in the openings on both sides of the central hole of the large wheel 706. A large wheel magnet 704 is fixed inside the copper sleeves C705. When the large wheel 706 rotates, it simultaneously drives the copper sleeves C705 and the large wheel magnet 704 to rotate. While rotating, the large wheel magnet 704 will contact the convex post on the swinging member 723, and the large wheel magnet 704 will generate a magnetic suction force on the convex post. The suction force will cause the swinging member 723 to rotate synchronously with the large wheel 706, making the balance wheel 707 on this convex post engage with the end large wheel 709. Since the swinging member 723 is limited by the inclined surface of the V-shaped block 728, when the large wheel 706 continues to rotate, the large wheel magnet 704 will continuously generate a suction force with the balance wheel 707 on the convex post, causing the balance wheel 707 to always engage with the end large wheel 709 and preventing the phenomenon of gear shifting. Setting the copper sleeves C705 can slow down and weaken the magnetic force of the large wheel magnet 704, weakening the magnetic force.

[0044] The parts not detailed in the present invention are prior art.

[0045] The embodiments selected herein for disclosing the invention purpose of the present invention are currently considered suitable. However, it should be understood that the present invention is intended to include all variations and improvements of all embodiments belonging to the concept and scope of the invention.

Claims

1. An intelligent lock body with a non-blocking rotation current structure for unlocking, characterized in that: It includes a clutch, a differential drive assembly, a latch bolt assembly, a main lock bolt large slide, a pull rod and a motor reduction box; the clutch is arranged on the lower shell of the lock and is located between the latch bolt assembly and the differential drive assembly; the differential drive assembly is arranged on the front side of the main lock bolt large slide and is transmission-connected to the main lock bolt large slide; the pull rod is arranged on the rear side of the main lock bolt large slide and the end of the pull rod is slidingly engaged with the clutch; a circuit board is fixed in the lower shell of the lock and on the right side of the latch bolt assembly; Hall elements A and Hall elements B are respectively provided on both sides of the lower part of the circuit board; Hall elements A and Hall elements B are respectively in contact with the magnets on the main lock bolt large slide; the outer driven wheel on the motor reduction box is meshed with the differential drive assembly for transmission.

2. The intelligent lock body with a non-stalled current structure for unlocking according to claim 1, characterized in that: The clutch includes an inner single, an upper shift fork and a lower shift fork. The inner single is a hollow variable-diameter shaft structure with a circle of limiting ring provided on the outer edge of the middle part. The center of the inner single is set as a square hole matching the square handle rod. The outer edge of the inner single is respectively provided with an upper convex arm, a lower convex arm, a driving arm and a boss; the upper convex arm and the lower convex arm cooperate with the pull rod to drive the pull rod; the driving arm cooperates with the differential drive assembly; the upper shift fork and the lower shift fork are respectively rotatably provided on the outer edges of both ends of the inner single through the center hole, and the upper parts of the upper shift fork and the lower shift fork are correspondingly provided with a rotating arm matching the oblique tongue assembly, and a shift tooth is also provided on the outer edge of the upper shift fork on the side opposite to the rotating arm; The specific structure of the inner single clutch is as follows: the outer edge of the limiting ring near the rear end is respectively provided with an upper convex arm and a lower convex arm of the driving pull rod, and the outer edge near the front side is provided with a driving arm that cooperates with the differential drive assembly; the two sides of the limiting ring are symmetrically provided with bosses along the outer edge of the inner single axis; The center holes of the upper and lower shift forks include a central circular hole and a fan-shaped groove symmetrically extending outward from the outer edge of the circular hole and matching the inner single upper boss. A copper sleeve A is provided between the upper shift fork and the lock housing.

3. The intelligent lock body with a non-blocking rotation current structure for unlocking according to claim 1, characterized in that: The differential drive assembly includes an upper half wheel, a lower half wheel, a center pin shaft, an upper return torsion spring and a lower return torsion spring; the upper half wheel and the lower half wheel are both special-shaped half-tooth plate structures, the upper half wheel is provided with a U-shaped toggle groove that cooperates with the shifting teeth of the clutch upper fork; the lower half wheel is provided with a toggle arm that cooperates with the single upper driving arm in the clutch; the lower half wheel is respectively provided with a movable pin and a fixed pin; the center pin shaft passes through the upper half wheel and the lower half wheel to overlap the upper half wheel and the lower half wheel on the front side of the main lock tongue large drag plate; the upper return torsion spring is provided between the upper half wheel and the lower half wheel, and the lower return torsion spring is provided between the main lock tongue large drag plate and the lower half wheel; The outer edge of the upper half wheel includes an arc-shaped gear segment and an arc segment. The gear segment is respectively engaged with the lock core rotating gear and the drive gear on the motor reduction box in the lock body. A U-shaped toggle groove is provided on the outer edge of the arc segment. The U-shaped toggle groove includes a single tooth and a half tooth. The U-shaped toggle groove cooperates with the toggle tooth of the shift fork on the clutch; a step groove matching the shape is provided on the front side of the upper half wheel, and a protruding shaft hole, an arc-shaped slide groove and a limit groove are provided on the step groove; the lower half wheel is a flat plate structure, and an arc-shaped tooth segment is also provided on the outer edge of the lower half wheel The wheel segment, the gear segment of the lower wheel is meshed with the driving gear on the motor reduction box in the lock body, and a toggle arm is protruding on the outer edge of the end corresponding to the gear segment, which cooperates with the single upper driving arm in the clutch, and the outer end of the toggle arm is in a raised arc shape; the rear end of the movable pin on the lower wheel is located in the vertical slide groove of the large drag plate of the main lock tongue, and the front end of the movable pin does not protrude from the front side of the lower wheel; the front end of the fixed pin is located in the arc-shaped slide groove of the upper wheel, and the rear end of the fixed pin does not protrude from the rear side of the lower wheel; the lower wheel is provided with a hole corresponding to the upper shaft hole of the upper wheel; The front end of the center pin is set in the shaft hole of the upper half wheel through the bearing, and the rear end passes through the corresponding hole on the lower half wheel and the horizontal long slide groove on the main lock tongue large slide plate through the shaft sleeve and is fixed to the rear shell of the lock; The upper reset torsion spring is arranged on the outer edge of the shaft hole of the upper half wheel through the copper sleeve B, one end of the upper reset torsion spring is installed in the limit groove on the upper half wheel, and the other end is connected to the fixed pin of the lower half wheel; the lower reset torsion spring is arranged on the rear side of the main lock tongue large slide plate through the pin shaft, one end of the lower reset torsion spring is hooked on the lower side of the main lock tongue large slide plate, and the other end is fixed on the rear end of the movable pin of the lower half wheel.

4. The intelligent lock body with a non-stalled current structure for unlocking according to claim 1, characterized in that: The inclined bolt assembly includes an inclined bolt, a movable rod, a spring and a sliding end plate; the movable rod is slidingly arranged in the mounting groove of the rear shell of the lock, the inclined bolt and the sliding end plate are respectively arranged on the two ends of the movable rod, the spring is arranged on the outer edge of the movable rod between the mounting groove and the rear end of the inclined bolt, and the rear side of the sliding end plate is slidingly arranged in the limiting sliding groove of the rear shell of the lock; the rotating arms of the upper shift fork and the lower shift fork are respectively located on the front and rear sides of the movable rod and are arranged corresponding to the sliding end plate; the rotating arms of the upper shift fork and the lower shift fork are used to shift the sliding end plate to drive the inclined bolt to extend and retract.

5. The intelligent lock body with a non-stalled current structure for unlocking according to claim 1, characterized in that: A fixing pin is provided on the main lock tongue large slide plate, and a pull rod is provided on the rear side of the main lock tongue large slide plate. The pull rod has a sickle-shaped structure, and a pin shaft is provided at the corner of the upper end of the pull rod. The upper end pin shaft of the pull rod and the front end of the fixing pin on the main lock tongue large slide plate are respectively fixedly connected to the two ends of the torsion spring. An elliptical slide is provided at the lower end of the pull rod, and the elliptical slide is provided on the sky and earth rod connecting pin on the main lock tongue large slide plate.

6. The intelligent lock body with a non-stalled current structure for unlocking according to claim 1, characterized in that: The upper side and lower side of the upper end of the pull rod are set at an angle, with an arc transition at the vertex. The upper side is the locking force point and cooperates with the upper convex arm inside the clutch, and the lower side is the unlocking force point and cooperates with the lower convex arm.

7. The intelligent lock body with a non-stalled current structure for unlocking according to claim 1, characterized in that: The motor reduction box includes a lower cover, an upper cover, a motor and a bridge wheel. The lower cover and the upper cover are fixedly connected by screws B and locking screws in a plurality of screw holes at the edge. The motor is fixed in the middle of the extension plate at the lower part of the lower cover. An installation hole is opened in the middle of the extension plate, and screw holes are respectively arranged on both sides of the installation hole. The motor is fixedly connected with the extension plate through screws A in the screw holes on both sides. The output shaft of the motor passes through the installation hole and is located inside the lower cover. Inside the lower cover, a concave hole B, a concave hole A and a bushing are arranged in sequence from front to back. A terminal large wheel assembly is connected to the concave hole B. The concave hole A is located at the center of the concave surface in the middle of the lower cover. The concave surface is in the shape of an inverted "8". A raised V-shaped block is fixed at the upper concave surface. The two sides of the rear edge of the V-shaped block are set as inclined surfaces, and a horizontal surface is connected between the two inclined surfaces. A swing piece shaft is fixed in the concave hole A. A conical spring, a middle hole of the swing piece and a central hole of the large wheel are sequentially passed through the swing piece shaft from bottom to top. The small diameter section of the conical spring is placed downward and contacts the inner surface of the lower cover, and the large diameter section of the conical spring contacts the lower surface of the swing piece. Openings are arranged on both sides of the central hole of the large wheel, and a copper sleeve C is fixed in the opening. A large wheel magnet is fixed in the copper sleeve C. Convex columns are arranged on both sides of the upper surface of the swing piece, and swing wheels are rotatably connected to the convex columns. The two sides of the upper surface of the swing piece are respectively limited by the inclined surfaces on both sides of the lower surface of the V-shaped block. The large wheel stacked wheels under the large wheel are respectively engaged with the two swing wheels. Among them, the swing piece shaft is rotatably connected with the swing piece. The swing piece shaft is the fulcrum of the swing piece and is passed through the middle hole of the swing piece. The swing wheels on the convex columns on both sides of the swing piece can swing freely. A bridge wheel connected by a bridge wheel shaft is arranged on the bushing. The bridge wheel stacked wheel under the bridge wheel is engaged with the large wheel. The bridge wheel is driven and connected by the motor.

8. The intelligent lock body with a non-blocking current structure for unlocking according to claim 7, characterized in that: The described terminal large wheel assembly includes a terminal large wheel, a stepped wheel shaft, a lower bearing and an upper bearing. The terminal large wheel is engaged with any one of the swing wheels. A lower bearing is connected in the concave hole B. The lower stepped shaft section of the stepped wheel shaft passes through the terminal large wheel and is connected with the central hole of the lower bearing. A limiting plane is arranged on the lower stepped shaft section, and the limiting plane is arranged in cooperation with the plane in the central hole of the terminal large wheel. The upper stepped shaft section of the stepped wheel shaft passes through the upper bearing in the upper cover and is fixedly connected with an outer moving wheel outside the upper cover. A limiting plane is arranged on the upper stepped shaft section, and the limiting plane is arranged in cooperation with the plane on the central hole of the outer moving wheel. The outer moving wheel is used for meshing and driving with a differential driving assembly in the lock body.

9. The intelligent lock body with a non-stalled current structure for unlocking according to claim 7, characterized in that: A turbine shaft is fixed in the shaft hole on one side of the lower part of the lower cover. A turbine is rotatably connected to the turbine shaft. A worm fixed on the motor output shaft is meshed with the turbine for transmission. The bridge wheel is meshed with the turbine stacked wheel on the upper surface of the turbine. The turbine and the turbine stacked wheel are of an integral structure and are concentrically arranged, and the outer diameter of the turbine stacked wheel is smaller than the outer diameter of the turbine.

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