Nfc passive euro profile lock cylinder

Abstract

The utility model relates to a kind of NFC passive euro lock cylinder, it is to solve the technical problem of the lock used for the lock cylinder of existing similar product lack of NFC passive structure and idling design, it is more difficult to install in the lock of euro standard, its main point is that the shell of the top of the body is as handle extension handle top, receiver and circuit board are equipped in shell, motor hole outer diameter of inner support under the shell is sleeved into lock shell, the body is installed in the lock cylinder slot hole of handle by lock shell;Gear at the transmission shaft of motor in inner support bottom aperture is engaged with the first lock on the upper lock shell of rotary lock tongue side tooth edge, the protruding block of one end is inserted into the gap of inner support bottom aperture one side;Or the above-mentioned gear and the second lock on the top groove of lock tongue seat side tooth edge are engaged, the lock head of one end is inserted into the lock hole of lock tongue seat top groove one side, eccentric column of lock tongue seat bottom side is inserted into the special-shaped groove of telescopic lock tongue top.

Description

Technical Field

[0001] This utility model relates to a handle flat lock in the field of mobile communication equipment, which is an NFC passive European standard lock cylinder. Background Technology

[0002] A handle-type flat lock is a type of door lock with a handle, commonly found in electrical cabinets for mobile communication equipment and other products. These cabinets are typically made of steel and are used to protect the components, requiring this type of lock to prevent unauthorized opening. Currently used handle-type flat locks generally include a base, handle, pivot, and bolt assembly. The base contains a lock cylinder assembly, a button assembly, or a lug plate extending from the handle's lug hole to secure the handle within the base and prevent it from being opened. Some existing handle-type flat locks use a gourd lock cylinder structure, such as Chinese patent application number 201821068978.1, authorized on January 18, 2019, entitled "An Intelligent Double-Controlled Gourd Lock Cylinder Structure." However, the aforementioned gourd lock cylinder structure rarely adopts an NFC passive design, particularly lacking a linkage design between the latch and the rotary or telescopic bolt, as well as a free-spinning position design. Furthermore, it is difficult to seamlessly switch to locks with European standard lock cylinders. Summary of the Invention

[0003] To overcome the aforementioned shortcomings, the purpose of this utility model is to provide an NFC passive European standard lock cylinder, thereby addressing the technical problem that existing similar products rarely adopt NFC passive structure designs in their gourd lock cylinder structures, particularly lacking a linkage design between the bolt and the rotary or telescopic bolt, as well as an idle position design, making it difficult to seamlessly switch between locks installed on European standard lock cylinders. This objective is achieved through the following technical solution.

[0004] An NFC passive European standard lock cylinder is disclosed. The lock cylinder body is housed in a lock cylinder slot at one end of a handle. The handle is located in a handle slot within a base, and the other end of the handle within the base is hinged to one end of a rotating shaft. The body is locked and fixed to the handle slot of the base via a rotary or telescopic latch extending from the bottom end of the handle. When the handle is opened, the lock cylinder slot at the handle causes the body to pop out of the handle slot. Key structural design features include a shell at the top of the body and a skirt protruding from the top of the inner bracket at the motor hole, exposing the top plane of the handle. The shell houses a receiver and a circuit board. A receiver is fixedly attached to the top of the shell, and a circuit board is fixedly located within the shell below the receiver. The shell opening at the bottom is integrally connected to the skirt of the inner bracket. A drive shaft extending from the lock shell at one end of the motor, encapsulated and fixed to the inner bracket, is connected to a gear via a gear reducer. The outer diameter of the motor hole in the inner bracket fits into the lock shell. The body is mounted in the lock cylinder slot of the handle through the lock shell. A gear in the bottom opening of the inner bracket engages with the rotary latch. The first latch inside the square lock case has teeth on one side engaged, and the protrusion at one end of the first latch is inserted into at least one notch at the bottom of the inner bracket. The protruding post at the bottom of the inner bracket is inserted into the groove at the top of the rotary latch. The rotating bolt at the bottom of the rotary latch is equipped with a first torsion spring. The rotary latch, which extends out of the opening on one side of the lock case, is rotated by the rotating bolt at the bottom and the protrusion on the inner bracket. Alternatively, the gear in the bottom hole of the inner bracket engages with the teeth on one side of the second latch in the groove at the top of the latch seat. At the same time, the lock head at one end of the second latch is inserted into the lock hole at least one side of the groove at the top of the latch seat. The eccentric post at the bottom of the latch seat is inserted into the irregular groove at the top of the telescopic latch. The telescopic latch, which extends out of the through hole on one side of the lock case, swings through the eccentric post at the bottom of the latch seat and is rotated and extended by the inner bracket. The motor and receiver are connected to the circuit board via wires. The receiver is equipped with an NFC module. The circuit board is equipped with a power supply capacitor to start the motor. The lock case is fixed to the lock cylinder slot in the handle by a pin on one side of the handle. The cross-section of the lock case is gourd-shaped, and the outer shell is the handle.

[0005] The latch seat has symmetrically arranged positioning posts on both sides of the top groove. The latch seat is inserted into the positioning holes on both sides of the motor hole at the bottom of the inner bracket through the positioning posts. The latch seat and the inner bracket are integrated. The top of the lock shell at the junction of the inner bracket and the lock shell has a torsion spring groove. A second torsion spring 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 protruding rib on one side of the bottom of the inner bracket skirt in the torsion spring groove, and the limiting edge on one side of the lock shell in the torsion spring groove. The above is a specific structural embodiment of the telescopic latch structure in which the latch seat is integrated with the inner bracket through positioning posts, and the inner bracket and the outer shell are reset through the second torsion spring.

[0006] The first and second latches each have two adjacent toothed edges. One side of the toothed edge of the first latch has an outwardly protruding bump. Below the gear, the first latch has elastically open through holes, one side of which is symmetrically positioned with the toothed edge. Below the toothed edge of the second latch, there is an outwardly protruding lock head. Symmetrically on the other side of the lock head below the lock head, there is an outwardly protruding rectangular head. Below the rectangular head, aligned with the toothed edge, is a beveled post at the bottom of the second latch. When the first and second latches disengage from the gear on the motor's drive shaft, the motor idles. This structure of the first and second latches facilitates motor idle operation in corresponding positions while improving the elasticity of the first latch and the linkage of the second latch within the latch seat and telescopic latch.

[0007] The upper inclined surface of the second latch on one side of the inclined post passes through the latch seat and abuts against the lower inclined surface of the irregular groove inside the telescopic latch.

[0008] The lower slope of the irregular groove in the telescopic latch is connected to a rounded chamfer on one side via a connecting hook-shaped straight chamfer surface, and to a short slope on the other side via a short side surface. The connecting surface of the short side surface and the rounded chamfer on one side are parallel, and the connecting surface of the straight chamfer on the other side of the rounded chamfer is parallel to the connecting surface of the short slope. The parallel surface of the short slope and the connecting surface of the rounded chamfer are set at a 90-degree right angle, and an end corner opening is provided at the 90-degree right angle. This structural embodiment of the specific shape design of the irregular groove in the telescopic latch facilitates the sliding positioning of the slope of the second latch within the irregular groove of the telescopic latch.

[0009] The lock housing at the first latch includes an upper lock housing and a lower lock housing. The protrusion of the inner support is inserted into a groove on one side of the top of the rotary latch through the bottom of the upper lock housing. The gear is located at the bottom of the upper lock housing. The upper lock housing and the lower lock housing are connected as one piece on one side, forming an opening on one side of the rotary latch. The above is an embodiment of a lock housing structure that facilitates the installation of the first latch and corresponding components.

[0010] The top groove of the rotary latch has a raised limiting post on one side of the stepped groove, which is inserted into the limiting groove on one side of the bottom hole of the upper lock housing. The above is the structural design for limiting the rotation of the rotary latch.

[0011] The second latch has a one-piece lock housing with a waist-shaped sliding hole on one side. A pin fixed to one side of the inner bracket extends out of the waist-shaped sliding hole. The above describes the structural design for limiting the rotation of the inner bracket in a telescopic latch structure.

[0012] A wiring plug is provided at the opening of the lock housing at the other end of the motor. The motor's wires pass through the wiring plug and connect to the receiver and circuit board.

[0013] The top surface of the handle has a wireless sensing box extending from the base below. The wireless sensing box is connected to an electromagnetic latch assembly or a motor latch assembly at the bottom of the base via a wire. The latch rod of the electromagnetic latch assembly or the motor latch assembly passes through the outer diameter of the lock cylinder slot at the end of the base that is inserted into the handle. This facilitates monitoring of the lock cylinder via the latch rod after the electromagnetic latch assembly or the motor latch assembly is connected to the network to achieve the first unlocking operation. After the first unlocking, the NFC function of the lock cylinder is used for the second unlocking operation.

[0014] This utility model has a reasonable structural design, is easy to manufacture and assemble, has a wide range of applications, and has good linkage effect with corresponding components. In particular, it has an idle stop design, which is convenient for use with rotary lock tongues or telescopic lock tongues. It is suitable for use as an NFC passive European standard lock cylinder and for structural improvements of similar products. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 yes Figure 1 The schematic diagram of the lock cylinder and lock body in the open state of Embodiment 1 is shown in the figure. The dotted line in the figure represents the electromagnetic lock tongue assembly or the motor lock tongue assembly at the bottom of the base.

[0017] Figure 3 yes Figure 2 A schematic diagram of the lock cylinder explosion structure in Example 1.

[0018] Figure 4 yes Figure 3 A magnified structural diagram of the explosion state between the middle gear, the first latch, and the rotary locking tongue.

[0019] Figure 5 yes Figure 4 A schematic diagram of the assembly state of the gear and the first latch.

[0020] Figure 6 yes Figure 3 Schematic diagram of the three-dimensional structure of the lock cylinder in Embodiment 1 Figure 1 .

[0021] Figure 7 yes Figure 3 Schematic diagram of the three-dimensional structure of the lock cylinder in Embodiment 1 Figure 2 The dotted line in the diagram represents a rotary locking bolt.

[0022] Figure 8 yes Figure 1 A schematic diagram of the exploded structure of the lock cylinder in Embodiment 2.

[0023] Figure 9 yes Figure 8 A magnified schematic diagram of the telescopic latch structure.

[0024] Figure 10 yes Figure 8 Enlarged structural diagram of the gear, second latch, bolt seat, and telescopic bolt assembly. Figure 1 .

[0025] Figure 11 yes Figure 8 Enlarged structural diagram of the gear, second latch, bolt seat, and telescopic bolt assembly. Figure 2 .

[0026] Figure 12 yes Figure 11 The diagram shows a top view of the structure, with the dashed lines indicating the unlocking positions of the gear and the second latch.

[0027] Figure 13 yes Figure 8 A three-dimensional structural diagram of the lock cylinder after assembly in Embodiment 2.

[0028] Figure 14 yes Figure 13 The bottom structure diagram shows the internal structure of the integrated lock case, with the dotted lines representing the internal structure of the lock case.

[0029] Figure 15 yes Figure 13 A cross-sectional structural diagram.

[0030] Attached Figure Numbers and Names: 1. Base; 101. Wireless Sensor Box; 2. Handle; 3. Housing; 4. Receiver; 5. Circuit Board; 6. Sealing Ring; 7. Wiring Plug; 8. Motor; 9. Gear; 10. Inner Support; 1001. Notch; 1002. Protrusion; 11. First Latch; 1101. Protrusion; 12. Upper Locking Shell; 13. Rotary Latch; 1301. Pin Groove; 1302. Limiting Pin; 14. First Torsion Spring; 15. 16. Lower lock case; 16. Second bolt; 1601. Lock head; 1602. Upper bevel; 17. Latch seat; 1701. Lock hole; 1702. Eccentric pin; 1703. Positioning pin; 18. Telescopic latch; 1801. Irregular groove; 18011. Lower bevel; 18012. Short side face; 18013. Short bevel; 19. Integrated lock case; 1901. Torsion spring groove; 1902. Waist-shaped sliding hole; 20. Pin; 21. Second torsion spring. Implementation

[0031] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figures 1-7The diagram shows the structure of the main body of the lock cylinder in one embodiment. The main body of the lock cylinder is located in the lock cylinder slot at one end of the handle 2. The handle is located 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 main body is locked and fixed in the handle slot of the base by a rotating latch 13 that extends out of the handle at one end of the bottom. When the handle is opened, the lock cylinder slot at one end of the handle drives the main body to pop out of the handle slot of the base. The outer shell 3 at the top of the main body and the skirt protruding from the outer diameter of the motor hole at the top of the inner bracket 10 below the outer shell expose the top plane of the handle. A receiver 4 and a circuit board 5 are housed inside the outer shell. A receiver is fixedly attached to the top of the inner shell, and a circuit board is fixedly installed inside the outer shell below the receiver. The shell opening at the bottom of the outer shell is fixedly connected to the skirt of the inner bracket, with a sealing ring 6 at the connection. Two symmetrically arranged guide posts at the top of the skirt of the inner bracket are inserted into guide grooves fixed to the inner wall of the shell opening. One end of the drive shaft of the motor 8, which is encapsulated and fixed to the inner bracket, extends out of the lock housing and is connected to gear 9 via a gear reducer. The outer diameter of the motor hole in the inner bracket fits into the lock housing. The main body is installed in the lock cylinder slot of the handle through the lock housing. The inner teeth at the bottom opening of the inner bracket... The wheel engages with the toothed edge of the first latch 11 inside the lock case above the rotary latch. At the same time, the protrusion 1101 at one end of the first latch is inserted into the notch 1001 on one side of the bottom hole of the inner bracket. The protruding post 1002 on the diameter side of the bottom hole of the inner bracket is inserted into the post groove 1301 on one side of the top of the rotary latch. The rotating shaft at the bottom of the rotary latch is equipped with a first torsion spring 14. The rotary latch, which extends out of the opening on one side of the lock case, is driven to rotate by the rotating shaft at the bottom and the protruding post of the inner bracket. The motor and the receiver are connected to the circuit board through wires. The receiver is equipped with an NFC module, and the circuit board is equipped with a power supply capacitor to start the motor. The lock case is fixed in the lock cylinder slot of the handle by a pin on one side of the handle. The cross-section of the lock case is gourd-shaped, and the outer shell is the handle.

[0032] The first latch has two adjacent toothed edges, and one side of the toothed edge of the first latch has an outwardly protruding protrusion. Below the gear, the first latch has elastic open through holes, with one side of the open through hole symmetrically arranged with the toothed edge. When the first latch disengages from the gear on the motor's drive shaft, the motor idles. The first latch housing includes an upper lock housing 12 and a lower lock housing 15. The protruding post of the inner support is inserted into a groove on one side of the top of the rotary latch through the bottom of the upper lock housing. The gear is located at the bottom of the upper lock housing. The upper and lower lock housings are integrated on one side, forming an opening on one side of the rotary latch. A protruding limiting post 1302 is provided on one side of the stepped groove on the outer diameter of the top groove of the rotary latch. The limiting post is inserted into a limiting groove on one side of the outer diameter of the bottom opening of the upper lock housing.

[0033] Based on the specific structural design of the body in Embodiment 1 of the above-mentioned lock cylinder, as follows: Figures 8-15The structure of the main body in the lock cylinder shown in Embodiment 2 is based on Embodiment 1. The outer shell contains a receiver and a circuit board. The skirt at the top of the inner bracket is fixed to the shell opening at the bottom of the outer shell. The inner bracket and the outer shell are integrated. The specific structural design difference of Embodiment 2 is as follows: The gear in the bottom hole of the inner bracket meshes with the toothed edge of the second latch 16 in the groove at the top of the latch seat 17. At the same time, the lock head 1601 at one end of the second latch is inserted into the lock hole 1701 on one side of the groove at the top of the latch seat. The eccentric column 1702 on one side of the bottom of the latch seat is inserted into the irregular groove 1801 at the top of the telescopic latch 18. The telescopic latch, which extends out of the through hole on one side of the lock shell, swings through the eccentric column at the bottom of the latch seat and is driven by the inner bracket to rotate and extend the latch seat. The above-mentioned latch seat has symmetrical positioning posts 1703 on both sides of the groove at the top. The latch seat is inserted into the positioning holes on both sides of the motor hole at the bottom of the inner bracket through the positioning posts. The latch seat and the inner bracket are integrated. The top of the lock shell at the fitting point between the inner bracket and the lock shell is provided with a torsion spring groove 1901. The second torsion spring 21 in the torsion spring groove is fitted to the outer diameter of the motor hole of the inner bracket. The two ends of the second torsion spring are respectively limited to the protruding 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.

[0034] The second latch has two adjacent teeth at its toothed edge. Below one side of the teeth of the second latch is an outwardly protruding lock head. Symmetrically on the other side of the lock head below the lock head is an outwardly protruding rectangular head. Below the rectangular head, aligned with the teeth, is a beveled post at the bottom of the second latch. When the first latch, the second latch, and the gear at the motor's drive shaft disengage, the motor idles. The upper bevel 1602 on one side of the beveled post of the second latch penetrates the latch tongue seat and abuts against the lower bevel 18011 on one side of the irregular groove of the telescopic latch. The lower slope of the irregular groove of the telescopic latch is connected to the rounded chamfer on one side by a connecting hook-shaped straight chamfer surface, and the other side of the lower slope is connected to the short slope 18013 via a short side surface 18012. The connecting surface of the short side surface and the rounded chamfer on one side are parallel, and the connecting surface of the straight chamfer on the other side of the rounded chamfer is parallel to the connecting surface of the short slope. The parallel surface of the short slope and the connecting surface of the rounded chamfer are set at a 90-degree right angle, and an end corner opening is provided at the 90-degree right angle. The lock shell at the second latch is an integral lock shell 19. One side of the integral lock shell is provided with a waist-shaped sliding hole 1902, and the pin 20 fixed to one side of the inner bracket extends out of the waist-shaped sliding hole of the integral lock shell.

[0035] Meanwhile, in Embodiments 1 and 2 above, a wiring plug 7 is provided at the opening of the lock housing at the other end of the motor. The motor's wire passes through the wiring plug and connects to the receiver and circuit board. The top plane of the handle is provided with a wireless sensing box 101 extending from the base below. The wireless sensing box is connected to the electromagnetic latch assembly or motor latch assembly at the bottom of the base via a line. The latch rod of the electromagnetic latch assembly or motor latch assembly passes through the base and inserts into the outer diameter of the lock cylinder slot at one end of the handle.

[0036] The functional requirements for the rotary latch described above are as follows: 1) After the circuit board receives the NFC unlock signal from the mobile phone, it drives the motor to rotate. The motor drives the gear and the first latch, which disengages from the lock housing. At this time, the handle can then rotate the latch. 2) When locking, after the circuit board receives the NFC lock signal from the mobile phone, it drives the motor to rotate in the reverse direction. The motor drives the gear and the first latch, which inserts into the lock housing. At this time, the handle is fixed and locked by the first latch and cannot be rotated. 3) The rotary latch also has a free travel rotation in the closed state. This serves two purposes: first, to prevent damage to the lock due to accidental operation in the closed state; and second, to facilitate the assembly of the lock cylinder. The functional requirements for the telescopic latch described above are similar and will not be elaborated here.

[0037] The locking, unlocking, and related state transitions of the aforementioned telescopic bolt are as follows: In the locked state, the second bolt is fixed inside the bolt seat. The second bolt moves left and right, while the bolt seat, motor, and housing remain fixed. At this time, the second bolt jams the bolt seat, and the housing cannot rotate to unlock. In the unlocking state, the motor rotates, the second bolt moves to the left, and the second bolt disengages from the bolt seat. Rotating the housing retracts the bolt, thus unlocking. During the unlocking action until the bolt resets, rotating the housing retracts the telescopic bolt. The lower inclined surface of the telescopic bolt engages with the upper inclined surface of the second bolt, causing the second bolt to reset. The housing and bolt seat reset, and the second torsion spring resets the housing, causing the bolt seat to reset. At this time, the second bolt jams the bolt seat, and the housing cannot rotate.

[0038] In summary, this lock cylinder uses NFC unlocking via mobile phone and has the same appearance as a European standard hoist lock cylinder, making it a lock that allows for seamless switching to and installation of European standard lock cylinders. The main features of this lock cylinder are as follows: First, the bolt resets, causing the bolt to move and achieve automatic bolt reset, thus locking the outer casing; Second, the motor rotates, and the bolt has two adjacent teeth. After the bolt reaches the designated position, the bolt disengages from the gear on the motor's drive shaft, allowing the motor to idle and preventing it from stalling.

Claims

1. An NFC passive European standard lock cylinder, wherein the body of the lock cylinder is disposed in a lock cylinder slot at one end of a handle (2), the handle is disposed in a handle slot in a base (1), and the other end of the handle in the base is hinged to one end of a rotating shaft; the body is locked and fixed in the handle slot of the base by a rotary latch (13) or a telescopic latch (18) extending from the bottom end of the handle, and when the handle is opened, one end of the lock cylinder slot of the handle drives the body to pop out of the handle slot of the base; characterized in that The outer shell (3) at the top of the main body and the skirt protruding from the outer diameter of the motor hole at the top of the inner bracket (10) below the outer shell expose the top plane of the handle (2). The outer shell is equipped with a receiver (4) and a circuit board (5). The shell opening at the bottom of the outer shell is fixedly connected to the skirt of the inner bracket. At the same time, the drive shaft of the motor (8) fixed to the inner bracket extends out of the lock shell and is connected to the gear (9) through the gear reducer. The outer diameter of the motor hole of the inner bracket is fitted into the lock shell. The main body is installed in the lock core slot of the handle through the lock shell. The gear in the bottom hole of the inner bracket meshes with the tooth edge of the first latch (11) in the lock shell above the rotary lock tongue (13). At the same time, the protrusion (1101) at one end of the first latch is inserted into the notch (1001) on one side of the bottom hole of the inner bracket. The protruding post (1002) on the diameter side of the bottom hole of the inner bracket is inserted into the post groove (1301) on the top side of the rotary lock tongue. The rotating shaft is equipped with a first torsion spring (14). The rotating bolt extending from the opening on one side of the lock case is driven to rotate by the rotating shaft at the bottom and the protruding post of the inner bracket; or the gear in the bottom hole of the inner bracket meshes with the tooth edge of the second latch (16) in the groove at the top of the latch seat (17), and at the same time, the lock head (1601) at one end of the second latch is inserted into the lock hole (1701) on one side of the groove at the top of the latch seat. The eccentric post (1702) on one side of the bottom of the latch seat is inserted into the irregular groove (1801) at the top of the telescopic bolt (18). The telescopic bolt extending from the through hole on one side of the lock case swings through the eccentric post at the bottom of the latch seat and the inner bracket drives the latch seat to rotate and extend. The motor and the receiver are connected to the circuit board through wires. The receiver is equipped with an NFC module, and the circuit board is equipped with a power supply capacitor to start the motor. The lock case is fixed in the lock cylinder slot of the handle by a pin on one side of the handle. The cross-section of the lock case is gourd-shaped, and the outer shell is the handle.

2. The NFC passive European standard lock cylinder according to claim 1, characterized in that... The top groove of the latch seat (17) is symmetrically provided with positioning posts (1703). The latch 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 latch seat and the inner bracket are connected as one unit. The top of the lock shell at the junction of the inner bracket and the lock shell is provided with a torsion spring groove (1901). 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 protruding rib on one side of the bottom 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.

3. The NFC passive European standard lock cylinder according to claim 1, characterized in that... The first latch (11) and the second latch (16) have two adjacent toothed edges. The first latch has an outward protrusion (1101) on one side of the toothed edge. The first latch below the gear (9) has elastic open through holes. The opening of one side of the open through hole is symmetrically arranged with the toothed edge. The second latch has an outward protrusion lock head (1601) on one side of the toothed edge. The lock head below the lock head has an outward protrusion rectangular head on the other side symmetrically. The bottom of the second latch, which is aligned with the toothed edge, has a sloping column. When the first latch, the second latch and the gear at the drive shaft of the motor (8) are disengaged, the motor is idling.

4. The NFC passive European standard lock cylinder according to claim 3, characterized in that... The upper inclined surface (1602) of the inclined post of the second latch (16) passes through the latch seat (17) and abuts against the lower inclined surface (18011) of the irregular groove (1801) of the telescopic latch (18).

5. The NFC passive European standard lock cylinder according to claim 4, characterized in that... The lower slope (18011) of the irregular groove (1801) of the telescopic latch (18) is connected to the rounded chamfer on one side by a straight chamfered surface with a hook shape, and the other side of the lower slope is connected to the short slope (18013) by a short side surface (18012). The connecting surface of the short side surface and the rounded chamfer on one side is parallel. The connecting surface of the straight chamfer on the other side of the rounded chamfer is parallel to the connecting surface of the short slope. The parallel connecting surface of the short slope and the connecting surface of the rounded chamfer are set at a 90-degree right angle, and an end corner 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 first latch (11) includes an upper lock shell (12) and a lower lock shell (15). The protrusion (1002) of the inner support (10) is inserted into the groove (1301) on the top side of the rotating bolt (13) through the bottom of the upper lock shell. The gear (9) is set at the bottom of the upper lock shell. The upper lock shell and the lower lock shell are connected as one piece to form an opening on the side of the rotating bolt.

7. The NFC passive European standard lock cylinder according to claim 1, characterized in that... The top groove (1301) of the rotary lock tongue (13) has a raised limiting post (1302) on one side of the stepped groove on the outer diameter. The limiting post is inserted into the limiting groove on one side of the bottom hole 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 latch (16) is an integral lock housing (19). One side of the integral lock housing is provided with a waist-shaped sliding hole (1902). The pin (20) fixed to one side of the inner bracket (10) extends out of the waist-shaped sliding hole of the integral lock housing.

9. The NFC passive European standard lock cylinder according to claim 1, characterized in that... The other end of the motor (8) has a wiring plug (7) at the lock housing opening. The motor wire passes through the wiring plug and connects 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 sensing box (101) extending from the base (1) below. The wireless sensing box is connected to the electromagnetic lock tongue assembly or motor lock tongue assembly at the bottom of the base through a line. The lock tongue rod of the electromagnetic lock tongue assembly or motor lock tongue assembly passes through the outer diameter of the lock core slot at one end of the base and is inserted into the handle.

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