NFC passive European standard lock cylinder

Abstract

The invention relates to an NFC (Near Field Communication) passive European standard lock cylinder, aiming at solving the technical problems that the existing similar product is not provided with an NFC passive structure and idle design and is difficult to be mounted on a lock with an European standard lock cylinder for use. The key point is that a shell at the top of the body serves as a handle to extend out of the top of the handle, a receiver and a circuit board are arranged in the shell, the outer diameter of a motor hole in an inner support below the shell is sleeved with a lock shell, and the body is installed in a lock cylinder groove hole of the handle through the lock shell; a gear at a transmission shaft of a motor in a bottom orifice of the inner bracket is meshed with a tooth edge on one side of a first plunger latch in the lock shell above the rotary spring bolt; a bump at one end is inserted into a notch on one side of the bottom orifice of the inner bracket; or the gear is meshed with the tooth edge on one side of the second plunger latch in the groove in the top of the spring bolt seat, the lock head at one end is inserted into the lock hole in one side of the groove in the top of the spring bolt seat, and the eccentric column on one side of the bottom of the spring bolt seat is inserted into the special-shaped groove in the top of the telescopic spring bolt.

Description

Technical Field

[0001] The present invention relates to a handle flat lock in the field of mobile communication equipment, which is an NFC passive European standard lock cylinder. Background Art

[0002] A handle-type flat lock is a type of door lock with a handle, typically found in electrical cabinets for products like mobile communications devices. These cabinets are typically made of steel and designed to protect the components, requiring a lock to prevent them from being opened. Existing handle-type flat locks typically consist of a base, a handle, a rotating shaft, and a steel bolt assembly. The base houses a lock cylinder assembly, a button assembly, or a lug plate extending from a handle lug hole to secure the handle within the base and prevent it from being opened. Some existing handle-type flat locks utilize a gourd-type lock cylinder structure, such as the Chinese patent application No. 201821068978.1, published on January 18, 2019, under the utility model title "An Intelligent Dual-Control Gourd-Type Lock Cylinder Structure." However, these gourd-type lock cylinders rarely utilize an NFC-based passive design. In particular, they lack a linkage design between the latch and the rotating or retractable bolt, as well as a dangling position design. Furthermore, they are difficult to seamlessly switch between locks installed with European-standard lock cylinders. Summary of the Invention

[0003] To overcome the aforementioned shortcomings, the present invention aims to provide an NFC passive European-standard lock cylinder to address the technical issues of existing similar products, such as the limited use of NFC passive structural designs in gourd-type lock cylinders, the lack of a coordinated design between the latch and the rotary or telescopic bolt, and the lack of an idle position design, making it difficult to seamlessly switch between locks installed with European-standard lock cylinders. This objective is achieved through the following technical solutions.

[0004] The lock core of the embodiment of the present invention is a lock core with a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, wherein the locking means is a plurality of locking means, The toothed edge on one side of the first latch in the square lock housing is meshed, and at the same time, the protrusion on one end of the first latch is inserted into the notch on one side of the bottom hole of the inner bracket, and the protruding column on the side of the ring diameter at the bottom hole of the inner bracket is inserted into the column groove on one side of the top of the rotary lock tongue. The rotating shaft at the bottom of the rotary lock tongue is provided with a first torsion spring, and the rotary lock tongue extending out of the opening on one side of the lock housing is driven to rotate by the bottom rotating shaft and the protruding column of the inner bracket; or the gear inside the bottom hole of the inner bracket is meshed with the toothed edge on one side of the second latch in the groove on the top of the lock tongue seat, and at the same time, the lock head at one end of the second latch is engaged The less lock is inserted into the lock hole on one side of the groove at the top of the lock tongue seat, the eccentric column on one side of the bottom of the lock tongue seat is inserted into the special-shaped groove on the top of the telescopic lock tongue, and the telescopic lock tongue extending out of the through hole on one side of the lock shell swings through the eccentric column at the bottom of the lock tongue seat and the inner bracket drives the lock tongue seat to rotate and retract; the motor and the receiver are connected to the circuit board through wires, the receiver is provided with an NFC module, and the circuit board is provided with a power supply capacitor for starting the motor; the lock shell is fixed in the lock core slot hole of the handle by a pin on one side of the handle, the cross-section of the lock shell is gourd-shaped, and the outer shell is a handle.

[0005] The locking bolt seat has symmetrically positioned positioning posts on both sides of the groove at the top. The locking bolt seat is inserted into positioning holes on both sides of the motor hole at the bottom of the inner bracket via the positioning posts. The locking bolt seat and the inner bracket are integrally connected. A torsion spring groove is provided at the top of the lock shell where the inner bracket and the lock shell are sheathed. A second torsion spring in the torsion spring groove is sheathed around the outer diameter of the motor hole in the inner bracket. The two ends of the second torsion spring are respectively restrained by a rib on one side of the bottom of the inner bracket skirt in the torsion spring groove and a limiting edge on one side of the torsion spring groove in the lock shell. The above is a specific structural embodiment of a telescopic locking bolt structure in which the locking bolt seat is integrally connected to the inner bracket via the positioning posts, and the inner bracket and the outer shell are reset by the second torsion spring.

[0006] The first and second latches are provided with two adjacent tooth openings on their tooth edges. One side of the tooth opening of the first latch is provided with an outwardly protruding bump. Below the first latch below the gear are elastic openings, with one side opening of the opening symmetrically arranged with the tooth openings. Below one side of the tooth opening of the second latch is provided with an outwardly protruding lock head. Below the lock head is a symmetrically arranged outwardly protruding rectangular head on the other side of the lock head. Below the rectangular head is a beveled column at the bottom of the second latch aligned with the tooth openings. When the first and second latches are disengaged from the gears on the motor's drive shaft, the motor is in idle rotation. The first and second latches of the above structure facilitate idling of the motor at corresponding positions while improving the elasticity of the first latch and the linkage of the second latch with the corresponding positions within the lock tongue seat and the telescopic lock tongue.

[0007] An upper inclined surface on one side of the inclined surface column of the second lock latch passes through the lock tongue seat and abuts against a lower inclined surface on one side in the special-shaped groove of the telescopic lock tongue.

[0008] One side of the lower beveled surface in the special-shaped groove of the telescopic lock tongue is connected to the rounded chamfered surface via a connected hook-shaped straight chamfered surface, and the other side of the lower beveled surface is connected to the short beveled surface via a short side surface. The short side surface is parallel to the connecting surface on one side of the rounded chamfered surface, and the connecting surface of the straight chamfered surface on the other side of the rounded chamfered surface is parallel to the connecting surface of the short beveled surface. The parallel connecting surface of the short beveled surface and the connecting surface of the rounded chamfered surface are arranged at a 90-degree right angle, and an end angle opening is provided at the 90-degree right angle. The structural embodiment of the specific shape design in the special-shaped groove of the telescopic lock tongue facilitates the sliding and positioning of the beveled surface of the second lock latch in the special-shaped groove of the telescopic lock tongue.

[0009] The lock housing of the first latch comprises an upper lock housing and a lower lock housing. The protruding post of the inner bracket is inserted through the inner bottom of the upper lock housing into a column groove on one side of the top of the rotary lock tongue. The gear is disposed on the inner bottom of the upper lock housing. The upper lock housing is integrally connected to one side of the lower lock housing and forms an opening on one side of the rotary lock tongue. The above is an embodiment of a lock housing structure that facilitates the installation of the first latch and corresponding components.

[0010] The step groove on the outer diameter side of the top column groove of the rotary lock bolt is provided with a raised limiting column, which is inserted into the limiting groove on the outer diameter side of the bottom hole of the upper lock shell. The above is the structural design of the rotation limit of the rotary lock bolt structure.

[0011] The lock housing at the second latch is an integrated lock housing, one side of which is provided with a waist-shaped sliding hole, and a pin fixed to one side of the inner bracket extends out of the waist-shaped sliding hole of the integrated lock housing. The above is a structural design for limiting the rotation of the inner bracket in the telescopic lock tongue structure.

[0012] A wiring plug is provided at an opening of the lock shell at the other end of the motor, and the wires of the motor pass through the wiring plug and are connected to the receiver and the circuit board.

[0013] The top plane of the handle is provided with a wireless induction box extending from the lower base, the wireless induction box is connected with the electromagnetic lock tongue assembly or the motor lock tongue assembly at the bottom of the base through a line, the lock tongue rod of the electromagnetic lock tongue assembly or the motor lock tongue assembly is inserted into the lock core slot hole outside diameter at one end of the handle, so that the first unlocking is realized by the lock tongue rod through the electromagnetic lock tongue assembly or the motor lock tongue assembly after networking, and the NFC function of the lock core after the first unlocking is used as the second unlocking operation.

[0014] The application has reasonable structure design, convenient production and assembly, wide application range, good linkage effect of corresponding parts, especially has idle gear design, and is convenient for use in combination with rotary lock tongue or telescopic lock tongue; the application is suitable for use as an NFC passive European standard lock core, and is suitable for structural improvement of similar products. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the application.

[0016] Figure 2 is Figure 1 is a schematic diagram of the cross-sectional structure of the lock core and the lock body in the open state of example one in the application, and the dashed line in the figure is the electromagnetic lock tongue assembly or the motor lock tongue assembly at the bottom of the base.

[0017] Figure 3 is Figure 2 is a schematic diagram of the explosion structure of the lock core in example one in the application.

[0018] Figure 4 is Figure 3 is a schematic diagram of the explosion state of the gear, the first lock bar and the rotary lock tongue.

[0019] Figure 5 is Figure 4 is a schematic diagram of the assembly state structure of the gear and the first lock bar.

[0020] Figure 6 is Figure 3 is a schematic diagram of the three-dimensional structure of the lock core in example one in the application Figure 1 .

[0021] Figure 7 is Figure 3 is a schematic diagram of the three-dimensional structure of the lock core in example one in the application Figure 2 , and the dashed line in the figure is the rotary lock tongue.

[0022] Figure 8 is Figure 1 is a schematic diagram of the partial explosion structure of the lock core in example two in the application.

[0023] Figure 9 is Figure 8 is a schematic diagram of the telescopic lock tongue in the application.

[0024] Figure 10 yes Figure 8 A magnified diagram of the assembly state of the gear, second latch, lock tongue seat, and telescopic lock tongue Figure 1 .

[0025] Figure 11 yes Figure 8 A magnified diagram of the assembly state of the gear, second latch, lock tongue seat, and telescopic lock tongue Figure 2 .

[0026] Figure 12 yes Figure 11 A top view of the structure, in which the dotted line represents the unlocked position of the gear and the second latch.

[0027] Figure 13 yes Figure 8 Schematic diagram of the three-dimensional structure of the lock core after assembly of embodiment 2.

[0028] Figure 14 yes Figure 13 Schematic diagram of the bottom structure, the dotted line in the figure is the internal structure of the integrated lock shell.

[0029] Figure 15 yes Figure 13 Schematic diagram of the cross-sectional structure.

[0030] Figure serial number and name: 1, base, 101, wireless induction box, 2, handle, 3, housing, 4, receiver, 5, circuit board, 6, sealing ring, 7, wiring plug, 8, motor, 9, gear, 10, inner bracket, 1001, notch, 1002, boss, 11, first latch, 1101, bump, 12, upper lock shell, 13, rotary lock tongue, 1301, column slot, 1302, limit column, 14, first torsion spring, 15, Lower lock housing, 16. Second lock latch, 1601. Lock head, 1602. Upper inclined surface, 17. Lock tongue seat, 1701. Lock hole, 1702. Eccentric column, 1703. Positioning column, 18. Telescopic lock tongue, 1801. Special-shaped groove, 18011. Lower inclined surface, 18012. Short side surface, 18013. Short inclined surface, 19. Integrated lock housing, 1901. Torsion spring groove, 1902. Waist-shaped sliding hole, 20. Pin, 21. Second torsion spring. Implementation Method

[0031] Now, the structure and use of the present invention will be further described in conjunction with the accompanying drawings. Figures 1-7The figure shows the structure of the body of the lock core in an embodiment 1. The body of the lock core is arranged in the lock core slot hole at one end of the handle 2, and the handle is arranged in the handle slot in the base 1. At the same time, the other end of the handle in the base is hinged to one end of the rotating shaft; the body is locked and fixed in the handle slot of the base by a rotary lock tongue 13 extending from the bottom end of the handle. When the handle is opened, one end of the lock core slot hole of the handle drives the body to pop out of the handle slot of the base. The outer shell 3 at the top of the body and the raised skirt of the outer diameter at the motor hole at the top of the inner bracket 10 below the shell expose the top plane of the handle. A receiver 4 and a circuit board 5 are provided in the shell. A receiver is fitted and fixed to the top of the shell. A circuit board is fixed in the shell below the receiver. The shell opening at the bottom of the shell is fixed to the skirt of the inner bracket as a whole. A sealing ring 6 is provided at the connection. Two symmetrically arranged guide columns at the top of the skirt of the inner bracket are inserted into the guide groove on the inner wall of the shell opening fixed to the shell. The transmission shaft of the motor 8 encapsulated and fixed to the inner bracket extends out of the lock shell at one end and is connected to the gear 9 through a gear reduction box. The outer diameter of the motor hole of the inner bracket is inserted into the lock shell. The body is installed in the lock core slot of the handle through the lock shell. The gears in the bottom hole of the inner bracket are The wheel engages with the toothed edge on one side of the first lock latch 11 in the lock shell above the rotary lock tongue. At the same time, the protrusion 1101 at one end of the first lock latch is inserted into the notch 1001 on one side of the bottom hole of the inner bracket, and the raised boss 1002 on one side of the ring diameter at the bottom hole of the inner bracket is inserted into the column groove 1301 on one side of the top of the rotary lock tongue. The rotating shaft at the bottom of the rotary lock tongue is provided with a first torsion spring 14, and the rotary lock tongue extending out of the opening on one side of the lock shell is driven to rotate by the rotating shaft at the bottom and the boss of the inner bracket; the motor and the receiver are connected to the circuit board through wires, the receiver is provided with an NFC module, and the circuit board is provided with a power supply capacitor for starting the motor; the lock shell is fixed to the lock core slot hole of the handle by a pin on one side of the handle. The cross-section of the lock shell is gourd-shaped, and the outer shell is a handle.

[0032] The first latch has two adjacent tooth openings on its toothed edge. One side of the tooth opening is provided with an outwardly protruding bump. Elastic openings are provided below the first latch below the gear, with one side opening of the opening symmetrically arranged with respect to the tooth openings. When the first latch is disengaged from the gear on the motor's drive shaft, the motor idles. The first latch's lock housing includes an upper lock housing 12 and a lower lock housing 15. The protruding post of the inner bracket is inserted through the bottom of the upper lock housing into the column slot on one side of the top of the rotary lock tongue. The gear is disposed on the bottom of the upper lock housing. The upper lock housing and one side of the lower lock housing are integrally connected, forming an opening on one side of the rotary lock tongue. A raised limiting post 1302 is provided in a stepped groove on the outer diameter side of the top column slot of the rotary lock tongue. The limiting post is inserted into a limiting groove on the outer diameter side of the hole at the bottom of the upper lock housing.

[0033] According to the specific structural design of the embodiment 1 of the lock core body, Figures 8-15The structure of the second embodiment of the body in the lock cylinder shown is based on the first embodiment, in which a receiver and a circuit board are provided in the outer shell, the skirt at the top of the inner bracket is fixed to the shell opening at the bottom of the outer shell, and the inner bracket is connected to the outer shell as a whole; the difference in the structural design of the second embodiment is as follows: the gear inside the bottom hole of the above-mentioned inner bracket engages with the tooth edge on one side of the second lock latch 16 in the top groove of the lock tongue seat 17, and at the same time, the lock head 1601 at one end of the second lock latch is inserted into the lock hole 1701 on one side of the top groove of the lock tongue seat, and the eccentric column 1702 on one side of the bottom of the lock tongue seat is inserted into the special-shaped groove 1801 on the top of the telescopic lock tongue 18. The telescopic lock tongue extending from the through hole on one side of the lock shell swings through the eccentric column at the bottom of the lock tongue seat and the inner bracket drives the lock tongue seat to rotate and retract. The above-mentioned lock tongue seat has positioning columns 1703 symmetrically provided on both sides of the groove at the top. The lock tongue seat is inserted into the positioning holes on both sides of the motor hole at the bottom of the inner bracket through the positioning columns. The lock tongue seat is connected to the inner bracket as a whole. A torsion spring groove 1901 is provided on the top of the lock shell where the inner bracket and the lock shell are fitted. The second torsion spring 21 in the torsion spring groove is sleeved on the outer diameter of the motor hole of the inner bracket. The two ends of the second torsion spring are respectively limited to the convex rib on one side of the bottom edge of the inner bracket skirt in the torsion spring groove, and the limiting edge on one side of the torsion spring groove of the lock shell.

[0034] The second latch has two adjacent tooth openings along its toothed edge. An outwardly protruding lock head is located below one of the tooth openings. A rectangular head, symmetrically located on the other side of the lock head, protrudes outward. Below the rectangular head, aligned with the tooth openings, a beveled post is located at the bottom of the second latch. When the first and second latches are disengaged from the gears on the motor's drive shaft, the motor idles. An upper beveled surface 1602 on one side of the second latch's beveled post extends through the bolt seat and abuts against a lower beveled surface 18011 on one side of the retractable bolt's irregular groove. The telescopic lock bolt's special-shaped groove has a lower beveled surface on one side connected to a rounded chamfered surface via a hook-shaped straight chamfered surface. The other side of the lower beveled surface is connected to a short beveled surface 18013 via a short side surface 18012. The short side surface is parallel to the connecting surface on one side of the rounded chamfered surface. The connecting surface of the straight chamfered surface on the other side of the rounded chamfered surface is parallel to the connecting surface of the short beveled surface. The parallel connecting surface of the short beveled surface and the connecting surface of the rounded chamfered surface are arranged at a 90-degree right angle, with an end angle opening at the 90-degree right angle. The lock housing at the second latch is an integrated lock housing 19, with a waist-shaped sliding hole 1902 on one side of the integrated lock housing. A pin 20 fixed to one side of the inner bracket extends out of the waist-shaped sliding hole of the integrated lock housing.

[0035] At the same time, in the above-mentioned embodiments 1 and 2, a wiring plug 7 is provided at the opening of the lock housing at the other end of the motor, and the wires of the motor pass through the wiring plug to connect to the receiver and the circuit board. A wireless induction box 101 is provided on the top plane of the handle, extending from the base below. The wireless induction box is connected to the electromagnetic lock bolt assembly or the motor lock bolt assembly at the bottom of the base through a wire. The lock bolt rod of the electromagnetic lock bolt assembly or the motor lock bolt assembly passes through the base and is inserted into the outer diameter of the lock core slot at one end of the handle.

[0036] The functional requirements that the above-mentioned rotary lock tongue must meet are as follows: 1) After the circuit board receives the NFC unlocking signal from the mobile phone, it drives the motor to rotate, and the motor drives the gear and the first latch. The first latch is disengaged from the lock shell, and the handle can now drive the lock tongue to rotate. 2) When locking, after the circuit board receives the NFC locking signal from the mobile phone, it drives the motor to rotate in the opposite direction, and the motor drives the gear and the first latch. The first latch is inserted into the lock shell. At this time, the handle is fixed by the first latch and cannot rotate. 3) The rotary lock tongue also has a period of idle travel in the closed state. One is to prevent damage to the lock caused by misoperation in the closed state, and the other is to provide convenience when assembling the lock core. The above-mentioned telescopic lock tongue must meet similar functional requirements, which will not be repeated here.

[0037] The locking, unlocking, and related state transitions of the telescopic lock tongue are specifically described as follows: In the locked state, the second latch is fixed within the lock tongue seat and moves left and right. The lock tongue seat, motor, and housing are fixed. At this time, the second latch engages the lock tongue seat, and the housing cannot be rotated to unlock. In the unlocked state, the motor rotates, the second latch moves left, and the second latch and lock tongue seat are disengaged. The housing is rotated, and the lock tongue retracts to unlock. The unlocking action continues until the latch is reset. The housing is rotated, and the telescopic lock tongue retracts. The lower inclined surface of the telescopic lock tongue cooperates with the upper inclined surface of the second latch, driving the second latch to reset. The housing and lock tongue seat are reset, and the second torsion spring resets the housing, which drives the lock tongue seat to reset. At this time, the second latch engages the lock tongue seat, and the housing cannot rotate.

[0038] In summary, this lock cylinder uses NFC unlocking via a mobile phone and has the same appearance as a European-standard gourd lock cylinder, making it a lock that allows for seamless switching and installation of European-standard lock cylinders. The key features of this lock cylinder are as follows: First, the return of the lock tongue drives the latch, automatically resetting the latch and locking the housing. Second, when the motor rotates, the latch has two adjacent teeth. When the latch reaches the specified position, the gears on the latch and the motor's drive shaft disengage, allowing the motor to idle, thus preventing motor stalling.

Claims

1. An NFC passive European standard lock cylinder, wherein the body of the lock cylinder is arranged in a lock cylinder slot at one end of a handle (2), the handle is arranged in the handle slot in the base (1), and the other end of the handle in the base is hinged to one end of the rotating shaft; the body is locked and fixed in the handle slot of the base by a rotating lock tongue (13) or a telescopic lock tongue (18) extending from the handle at one end of the bottom; when the handle is opened, the lock cylinder slot end of the handle drives the body to pop out of the handle slot of the base; it is characterized in that The outer shell (3) at the top of the body and the skirt with a raised outer diameter at the motor hole at the top of the inner bracket (10) below the shell expose the top plane of the handle (2). A receiver (4) and a circuit board (5) are provided in the shell. The shell opening at the bottom of the shell is fixedly connected to the skirt of the inner bracket as a whole. At the same time, the transmission shaft of the motor (8) fixed to the inner bracket at one end extends out of the lock shell and is connected to the gear (9) through a gear reduction box. The outer diameter of the motor hole of the inner bracket is inserted into the lock shell. The body is installed in the lock core slot of the handle through the lock shell. The gear in the hole at the bottom of the inner bracket is meshed with the tooth edge of the first lock latch (11) on one side of the lock shell above the rotary lock tongue (13). At the same time, the protrusion (1101) at one end of the first lock latch is at least inserted into the notch (1001) on one side of the hole at the bottom of the inner bracket. The protruding column (1002) on the circle diameter side of the hole at the bottom of the inner bracket is inserted into the column groove (1301) on one side of the top of the rotary lock tongue. The rotating shaft is provided with a first torsion spring (14), and the rotary lock tongue extending from the opening on one side of the lock shell is driven to rotate by the rotating shaft at the bottom and the convex column of the inner bracket; or the gear in the hole at the bottom of the inner bracket is meshed with the tooth edge on one side of the second lock latch (16) in the groove at the top of the lock latch seat (17), and at the same time, the lock head (1601) at one end of the second lock latch is at least inserted into the lock hole (1701) on one side of the groove at the top of the lock latch seat, and the eccentric column (1702) on one side of the lock latch seat is inserted into the special-shaped groove (1801) on the top of the telescopic lock tongue (18), and the telescopic lock tongue extending from the through hole on one side of the lock shell is swung by the eccentric column at the bottom of the lock latch seat and the inner bracket drives the lock latch seat to rotate and retract; the motor and the receiver are connected to the circuit board through wires, the receiver is provided with an NFC module, and the circuit board is provided with a power supply capacitor for starting the motor; the lock shell is fixed to the lock core slot of the handle by a pin on one side of the handle, the cross section of the lock shell is gourd-shaped, and the outer shell is a handle.

2. The NFC passive European standard lock cylinder according to claim 1, characterized in that Positioning posts (1703) are symmetrically provided on both sides of the groove at the top of the lock tongue seat (17), and the lock tongue seat is inserted into the positioning holes on both sides of the motor hole at the bottom of the inner bracket (10) through the positioning posts. The lock tongue seat and the inner bracket are connected as a whole. A torsion spring groove (1901) is provided on the top of the lock shell where the inner bracket and the lock shell are sleeved. The second torsion spring (21) in the torsion spring groove is sleeved on the outer diameter of the motor hole of the inner bracket, and the two ends of the second torsion spring are respectively limited to the rib on one side of the bottom of the skirt of the inner bracket in the torsion spring groove, and the limiting edge on one side of the torsion spring groove of the lock shell.

3. The NFC passive European standard lock cylinder according to claim 1, characterized in that The first latch (11) and the second latch (16) are provided with two adjacent tooth openings at the tooth edges, and a protruding block (1101) protruding outward is provided on one side of the tooth opening of the first latch, and elastic opening holes are provided below the first latch below the gear (9), and the opening of one side of the opening hole is symmetrically arranged with the tooth opening; a lock head (1601) protruding outward is provided below one side of the tooth opening of the second latch, and a rectangular head protruding outward is provided on the other side of the lock head below the lock head, and a bevel column is provided at the bottom of the second latch aligned with the tooth opening below the rectangular head; when the first latch, the second latch and the gear at the transmission shaft of the motor (8) are disengaged, the motor is in idle rotation.

4. The NFC passive European standard lock cylinder according to claim 3, characterized in that An upper inclined surface (1602) on one side of the inclined column of the second lock latch (16) passes through the lock tongue seat (17) and abuts against a lower inclined surface (18011) on one side of the special-shaped groove (1801) of the telescopic lock tongue (18).

5. The NFC passive European standard lock cylinder according to claim 4, characterized in that One side of the lower bevel (18011) in the special-shaped groove (1801) of the telescopic lock tongue (18) is connected to the round bevel surface through a connected hook-shaped straight chamfered surface, and the other side of the lower bevel is connected to the short bevel (18013) through a short side surface (18012), the short side surface is parallel to the connected surface on one side of the round bevel surface, the connected surface at the straight chamfered surface on the other side of the round bevel surface is parallel to the connected surface of the short bevel, the parallel connected surface of the short bevel and the connected surface of the round bevel surface are arranged at a 90-degree right angle, and an end angle opening is provided at the 90-degree right angle.

6. The NFC passive European standard lock cylinder according to claim 1, characterized in that The lock housing at the first lock latch (11) includes an upper lock housing (12) and a lower lock housing (15), the protruding column (1002) of the inner bracket (10) is inserted into the column groove (1301) on one side of the top of the rotary lock tongue (13) through the inner bottom of the upper lock housing, the gear (9) is arranged on the inner bottom of the upper lock housing, and the upper lock housing is connected to one side of the lower lock housing to form an opening on one side of the rotary lock tongue.

7. The NFC passive European standard lock cylinder according to claim 1, characterized in that A raised limiting column (1302) is provided in a step groove on one side of the outer diameter of the top column groove (1301) of the rotary lock tongue (13), and the limiting column is inserted into a limiting groove on one side of the outer diameter of the bottom opening of the upper lock shell (12).

8. The NFC passive European standard lock cylinder according to claim 1, characterized in that The lock housing at the second lock latch (16) is an integrated lock housing (19), one side of which is provided with a waist-shaped sliding hole (1902), and a pin (20) fixed to one side of the inner bracket (10) extends out of the waist-shaped sliding hole of the integrated lock housing.

9. The NFC passive European standard lock cylinder according to claim 1, characterized in that A wiring plug (7) is provided at the hole of the lock housing at the other end of the motor (8), and the wires of the motor pass through the wiring plug and are connected to the receiver (4) and the circuit board (5).

10. The NFC passive European standard lock cylinder according to claim 1, characterized in that The top plane of the handle (2) is provided with a wireless induction box (101) extending from the base (1) below. The wireless induction box is connected to the electromagnetic lock tongue assembly or the motor lock tongue assembly at the bottom of the base through a line. The lock tongue rod of the electromagnetic lock tongue assembly or the motor lock tongue assembly passes through the base and is inserted into the outer diameter of the lock core slot at one end of the handle.

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