A parallel double cylinder lock and its using method

Abstract

The application discloses a kind of parallel double lock cylinder's intelligent cylinder lock and its using method, including two groups of independent lock cylinder components, two groups of lock cylinder components are installed in the two parallel lock holes of handle rotating shaft, two groups of lock cylinder components can work simultaneously also can work individually, do not influence each other.Lock handle rotating shaft is sleeved in main lock body, one end is left with two groups of lock holes for bluetooth key insertion lock cylinder to communicate, the other end and transmission shaft are connected or disconnected by the radial connection of steel ball clamping position on two groups of lock cylinder components, the present application provides two kinds of unlocking mode: when using bluetooth key to unlock, insert key into any lock hole, background management program sends unlocking instruction through bluetooth key, bluetooth key and lock cylinder component carry out information verification, further unlocking action can be carried out after verification is completed;When using remote unlocking, issue instruction to controller through intelligent terminal, controller further controls two groups of lock cylinder components to work, realizes unlocking operation.

Description

Technical Field

[0001] This invention belongs to the field of smart lock technology, specifically relating to a smart cylindrical lock with parallel double lock cylinders and its usage method. Background Technology

[0002] With the continuous development of science and technology, modern locks are becoming increasingly intelligent and secure. Remote control, Bluetooth keys, and multi-lock cylinder integration are widely used, reflecting the intelligent and secure characteristics of modern locks. However, in practical applications, these seemingly more intelligent and secure locks have also revealed some shortcomings, mainly in the following aspects: 1. Unlocking Method: Most existing smart cylindrical locks use Bluetooth keys for unlocking. Unlocking requires key authentication. After successful authentication, the key needs to be turned to rotate the bolt, thus unlocking the door. Alternatively, turning the key can rotate other components inside the lock body, which in turn rotate the bolt. Because Bluetooth keys are typically not very strong and are small, they are difficult to apply force to. If the lock is deformed, the key may become stuck or even break down, preventing the door from opening. Furthermore, most smart cylindrical locks lack a remote unlocking module, making it inconvenient to use a physical key. Losing the physical key can result in financial losses. Real-time monitoring of the door sensor and bolt status is also impossible, leading to management difficulties and low security.

[0003] In terms of control methods, existing intelligent cylindrical locks mostly use single or two combinations of electronic lock cylinders, fixed electronic lock cylinders, and electromagnets. When using a single control method, if the control fails, the lock cannot be opened. When using a combination of two, only one keyhole is exposed. If the exposed keyhole is damaged, it cannot be unlocked normally with a key, resulting in poor reliability and low security. Some lock cylinders use electromagnet technology. Due to the weak magnetism of electromagnets, the unlocking mechanism is prone to failure to engage properly, causing the bolt to jam and preventing normal unlocking.

[0004] Therefore, it is necessary to develop a new type of parallel double-lock cylinder intelligent cylindrical lock. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned shortcomings and provide a parallel double-lock cylinder intelligent cylindrical lock and its usage method.

[0006] To address the problems of the prior art, the technical solution of the present invention is: an intelligent cylindrical lock with parallel double lock cylinders, comprising a dust cover, a handle shaft, a first conductive ring, a second conductive ring, a first lock cylinder assembly, a second lock cylinder assembly, a main lock body, a pin circuit assembly, a transmission shaft, a limit block, and a lock tongue; The handle shaft head is fitted with a dust cover, and the handle shaft tail can rotate circumferentially and is axially limited to the main lock body head. The heads of the first lock cylinder assembly and the second lock cylinder assembly are installed side by side inside the handle shaft. The Bluetooth key passes through the dust cover and the handle shaft and is inserted into the first lock cylinder assembly or the second lock cylinder assembly for communication. The tails of the first lock cylinder assembly and the second lock cylinder assembly are fitted onto the drive shaft head. The steel balls of the first lock cylinder assembly and the second lock cylinder assembly cooperate with the inner wall of the drive shaft to achieve radial connection or disconnection between the handle shaft and the drive shaft. The drive shaft head is fitted inside the main lock body, and the drive shaft tail protrudes out of the main lock body. From left to right, the outer diameter of the drive shaft tail is fitted with a limit block and a lock tongue. The limit block and the lock tongue rotate with the radial rotation of the drive shaft. The first conductive ring and the second conductive ring are respectively insulated and radially limited on the handle shaft, and the first conductive ring and the second conductive ring are respectively electrically connected to the first lock cylinder assembly and the second lock cylinder assembly; The pin circuit assembly is fixed to the bottom of the main lock body. The two pins of the pin circuit assembly pass through the main lock body and make elastic electrical contact with the first conductive ring and the second conductive ring, respectively. The Bluetooth key is wirelessly connected to the background management program, and the smart terminal is wirelessly connected to the pin circuit assembly through the remote controller.

[0007] Preferably, the dust cover is provided with a first locking hole, a second locking hole, a protruding post, a paddle limiting groove and a first water passage groove, the paddle limiting groove is provided between the first locking hole and the second locking hole, the protruding post is provided at the rear end of the dust cover, and the first water passage groove is provided on the circumference of the dust cover. The handle shaft head end face is provided with a dust cover groove, a paddle groove, a first spring groove, a second spring groove, a third lock hole, a fourth lock hole and a protruding column hole, and a second water passage groove and three grips are provided on the circumference of the handle shaft head; A paddle, a first spring, and a second spring are installed between the dust cover and the handle shaft. The first spring is installed in the first spring groove at the head of the handle shaft, and the second spring is installed in the second spring groove at the head of the handle shaft. The paddle includes a paddle boss and a paddle end face that are perpendicular to each other. The paddle end face is located in the paddle groove at the head of the handle shaft, and the paddle end face is in contact with the first spring and the second spring. The paddle boss is limited to the paddle limiting groove. The paddle reciprocates in the paddle limiting groove and the paddle groove under the elastic force of the two sets of springs. The depth of the dust cover groove at the head of the handle shaft is equal to the thickness of the dust cover. The protruding hole on the handle shaft is through the left and right sides. Two first mounting screws pass through the protruding hole and are fixedly connected to the protruding post to achieve the fixation of the dust cover and the handle shaft. When the dust cover and the handle shaft are fixedly connected, the end face of the handle shaft head and the left end face of the dust cover are in the same plane. The first keyhole and the third keyhole are positioned correspondingly and are connected, and the second keyhole and the fourth keyhole are positioned correspondingly and are connected.

[0008] Preferably, the third lock hole at the head of the handle shaft is provided with a third spring cavity and a first lock cylinder cavity in sequence to the right, and the fourth lock hole is provided with a fourth spring cavity and a second lock cylinder cavity in sequence to the right. The first lock cylinder spring block and the third spring are installed sequentially from left to right in the third spring cavity, and the second lock cylinder spring block and the fourth spring are installed sequentially from left to right in the fourth spring cavity. The first lock cylinder spring block and the second lock cylinder spring block reciprocate within the third spring cavity and the fourth spring cavity under the elastic force of the third spring and the fourth spring, respectively. The diameters of the third lock hole, the third spring cavity and the first lock cylinder cavity increase sequentially from left to right, and the diameters of the fourth lock hole, the fourth spring cavity and the second lock cylinder cavity increase sequentially from left to right.

[0009] Preferably, the first lock cylinder assembly has a first boss on the outside of the first lock cylinder housing, and the second lock cylinder assembly has a second boss on the outside of the second lock cylinder housing. The first lock cylinder cavity has a first groove inside, and the second lock cylinder cavity has a second groove inside. The first groove mates with the first boss, and the second groove mates with the second boss. The first lock cylinder assembly is fitted and axially and radially limited within the first lock cylinder cavity, and the second lock cylinder assembly is fitted and axially and radially limited within the second lock cylinder cavity. A lock cylinder baffle is fixedly provided at the right end of the first lock cylinder cavity and the second lock cylinder cavity. The lock cylinder baffle is fixedly connected to the first countersunk of the handle shaft by a second mounting screw to prevent the first lock cylinder assembly and the second lock cylinder assembly from moving to the right. The first and second lock cylinder assemblies are respectively provided with a first lock cylinder head and a second lock cylinder head at their heads, and a first steel ball and a second steel ball are respectively provided at their tails. When the first and second lock cylinder assemblies are not in operation, the first and second steel balls are located in the first and second steel ball through holes, respectively. When the first and second lock cylinder assemblies are in operation, the first and second steel balls pass through the first and second steel ball through holes individually or simultaneously and are locked in the first slot on the left side of the drive shaft, realizing the clutch connection between the handle shaft and the drive shaft. Preferably, the negative terminal of the first motor inside the first lock cylinder assembly is electrically connected to the first lock cylinder housing through a wire. One end of the wire is soldered to the negative terminal of the first motor, and the other end is fixed to the first lock cylinder housing through a third transmission screw. The negative terminal of the second motor inside the second lock cylinder assembly is electrically connected to the second lock cylinder housing through a wire. One end of the wire is soldered to the negative terminal of the second motor, and the other end is fixed to the second lock cylinder housing through a fourth transmission screw. The first and second lock cylinder housings are electrically connected to a remote controller. The handle shaft has a first insulating pad, a first conductive ring and a first conductive screw for fixing the wire, a second insulating pad, a second conductive ring and a second conductive screw for fixing the wire, and an insulating sleeve installed on its outer diameter from left to right. The handle shaft has a first limiting groove at its tail end, and a second limiting groove and a third protrusion on the first insulating pad. The first insulating pad is fitted onto the handle shaft tail end, and the third protrusion slides along the first limiting groove until the left end face of the first insulating pad coincides with the second right end face of the handle shaft. A first conductive ring is fitted onto the first insulating pad, and the first conductive protrusion slides along the second limiting groove until it can no longer slide. The second insulating pad has a third limiting groove and a fourth protrusion. The second insulating pad is fitted onto the handle shaft tail end, and the fourth protrusion slides along the first limiting groove until the left end face of the second insulating pad coincides with the right end face of the first insulating pad. A second conductive ring is fitted onto the second insulating pad, and the second conductive protrusion slides along the third limiting groove until it can no longer slide. The insulating sleeve has three first mounting through holes and a ninth protrusion evenly arranged in the circumferential direction, and three first screw holes are evenly arranged on the circumference of the corresponding handle shaft. Three fourth mounting screws pass through the three first mounting through holes to fix the insulating sleeve and the handle shaft together. The first conductive screw on the first conductive ring electrically connects the positive terminal of the motor in the first lock cylinder assembly to the first conductive boss via a wire. The first conductive boss is provided with a first conductive screw hole, and the first conductive screw passes through the first conductive screw hole to fix the wire to the first conductive boss. The second conductive screw on the second conductive ring electrically connects the positive terminal of the motor in the second lock cylinder assembly to the second conductive boss via a wire. The second conductive boss is provided with a second conductive screw hole, and the second conductive screw passes through the second conductive screw hole to fix the wire to the second conductive boss.

[0010] Preferably, the head of the drive shaft is sleeved on the first steel ball shaft of the first lock cylinder assembly and the second steel ball shaft of the second lock cylinder assembly. The drive shaft is provided with a fifth boss in the circumferential direction. The left end face of the fifth boss is in close contact with the first right end face of the handle shaft. The tail of the drive shaft is provided with a square shaft with a square cross-section and a threaded shaft with threads. The square shaft and the threaded shaft are exposed at the tail of the main lock body. The limiting block is provided with a first square inner hole, a sixth boss on the left end face, and a seventh boss with a square cross-section on the right end face. The limiting block is sleeved on the square shaft at the tail of the drive shaft and is in close contact with the round end face of the tail of the drive shaft. The drive shaft is also fitted with a magnet mounting assembly. The drive shaft is sequentially fixedly connected to the limiting block, the magnet mounting assembly and the locking tongue and can rotate 90° simultaneously. The magnet mounting plate in the magnet mounting assembly is provided with a second square inner hole with a square cross-section. The second square inner hole is fitted onto the seventh protrusion on the right side of the limiting block. A rectangular magnet is fixedly connected to the magnet mounting plate by screws. The third-shaped inner hole on the latch is fitted onto the square shaft at the tail of the drive shaft, and the left end face of the latch is in close contact with the right end face of the seventh boss. The first double round nut is threadedly connected to the threaded shaft at the tail of the drive shaft and is in close contact with the right end face of the latch.

[0011] Preferably, the main lock body has a first cavity, a second cavity, a third cavity, and a fourth cavity arranged from left to right, with the inner diameter of the four cavities decreasing sequentially from left to right. The first cavity is fitted onto the handle fixing plate, and the depth of the first cavity is the same as the thickness of the handle fixing plate. The handle shaft can rotate circumferentially and is axially limited on the handle fixing plate by a retaining spring. The handle shaft has a retaining spring groove circumferentially arranged, and the retaining spring is located in the second cavity and the retaining spring groove. The right end of the handle shaft and the first insulating pad, the first conductive ring, the second insulating pad, the second conductive ring, and the insulating sleeve are located in the third cavity. The middle section of the drive shaft is located in the fourth cavity. Both the handle shaft and the drive shaft can rotate circumferentially inside the main lock body. The handle fixing plate has a third groove and a fourth groove on its left side. The diameter of the third groove is larger than that of the fourth groove. Six first studs are evenly arranged on the right end face of the handle fixing plate. A third water passage groove is arranged on the radial circumference. The inner end face of the first cavity of the main lock body is provided with six circumferentially distributed first stud holes. The six first studs on the right end of the handle fixing plate are passed through the first stud holes, and six third mounting screws are screwed into the first stud holes on the right end of the first cavity of the main lock body to the left to achieve a fixed connection between the handle fixing plate and the main lock body. The main lock body is provided with a first cylindrical section, a second cylindrical section, and a threaded section from left to right, with the diameter decreasing from left to right. A fifth groove with a 90° included angle is provided on the rightmost end face of the threaded section. The main lock body is fitted inside the tower door. During installation, the first cylindrical section is located outside the tower door, with its right end face tightly against the outside of the tower door. Two symmetrical first planes are provided on the second cylindrical section, and a first mounting groove and a first wire guide groove are provided below the second cylindrical section. Preferably, a stop sleeve is also fitted outside the main lock body. The stop sleeve has a fifth cavity and a sixth cavity. Two symmetrical third planes are provided inside the fifth cavity, and outside the fifth cavity… An eighth protrusion and a second wire groove are provided; the fifth cavity is fitted onto the second cylindrical section of the main lock body and the two third planes inside the fifth cavity are parallel to the two first planes on the second cylindrical section. During installation, the left end face of the fifth cavity is in close contact with the inner side of the tower door and the eighth protrusion is embedded in the groove on the inner side of the tower door. The sixth cavity is fitted onto the threaded section of the main lock body. The threaded section is externally connected to and threaded with two second double round nuts. By tightening the second double round nuts, the entire lock body is fixed on the tower door. A door magnetic switch is provided at the installation position of the tower door. The door magnetic switch is electrically connected to the remote controller. The fifth groove at the right end of the threaded section is embedded with a sixth protrusion that allows the limit block to rotate 90°. The first mounting groove below the second cylindrical section of the main lock body is provided with a first through hole, a second through hole and two third screw holes on its inner plane. The ejector pin circuit assembly includes a first ejector pin, a second ejector pin, an ejector pin circuit board, and an eighth mounting screw. The ejector pin circuit assembly is fixed to the first mounting groove plane by two eighth mounting screws. The ejector pin circuit board is provided with a first wire pad, a second wire pad, a first ejector pin pad, and a second ejector pin pad. The first ejector pin and the second ejector pin pass through and are welded to the first ejector pin pad and the second ejector pin pad, respectively. The first ejector pin pad is electrically connected to the first wire pad, and the second ejector pin pad is electrically connected to the second wire pad. The first ejector pin and the second ejector pin pass through the first through hole and the second through hole located on the first mounting groove plane, respectively. The first ejector pin head and the second ejector pin head are elastically electrically contacted with the second conductive ring and the first conductive ring, respectively. Two wires are welded to the first wire pad and the second wire pad, respectively. These wires are connected to the remote controller, realizing the positive circuit connection between the first lock cylinder assembly and the second lock cylinder assembly and the remote controller.

[0012] Preferably, it also includes a Hall circuit assembly, which includes a Hall sensor, a Hall circuit board, a Hall mounting base, and a wire clamp. The Hall sensor is soldered onto the Hall circuit board, the Hall circuit board is fixed to the Hall mounting base by a fifth mounting screw, and the wire clamp is fixed to the Hall mounting base by a sixth mounting screw. The Hall circuit board is provided with a third wire pad, a fourth wire pad, and a fifth wire pad. The three wire pads are electrically connected to the three pins of the Hall sensor, and three wires are soldered to the three wire pads, which are respectively connected to the remote controller. The right side of the threaded section at the tail of the main lock body is provided with two symmetrical second planes, the upper plane of which is provided with two second screw holes. The Hall circuit assembly is fixed on the second plane by passing the seventh mounting screw through the second screw holes, and the Hall sensor is facing the magnet.

[0013] Preferably, a method of using a parallel double-lock cylinder smart cylindrical lock involves installing the aforementioned parallel double-lock cylinder smart cylindrical lock in the required position. At this time, the first steel ball and the second steel ball of the first lock cylinder assembly and the second lock cylinder assembly are not engaged in the first slot in their respective steel ball through holes, and the handle shaft and the drive shaft are in a separated state, that is, they are in an idle state. When using a Bluetooth key to unlock, the Bluetooth key must first be authorized. Then, the authorized Bluetooth key is inserted into the first lock cylinder head through the first keyhole and the third keyhole in sequence, or the Bluetooth key is inserted into the second lock cylinder head through the second keyhole and the fourth keyhole in sequence. An unlocking command is sent to the first lock cylinder assembly or the second lock cylinder assembly. Upon receiving the command, the internal motor of the first lock cylinder assembly or the second lock cylinder assembly starts to rotate, thereby pushing out the first steel ball or the second steel ball and locking it into the first slot, realizing the engagement of the handle shaft and the drive shaft. After hearing the unlocking prompt sound, rotating the handle will drive the bolt to rotate and unlock. After unlocking, the first steel ball or the second steel ball will return to its respective steel ball through hole, and the handle shaft and the drive shaft will separate again and each will be in an idle state. When using remote unlocking, the smart terminal sends an unlocking command to the remote controller. The remote controller energizes the first and second conductive rings through the pin circuit assembly. The first and second conductive rings transmit electrical signals to the first and second lock cylinder assemblies, respectively. After being energized, the internal motors of the two lock cylinder assemblies begin to rotate, thereby pushing out the first and second steel balls and locking them into the first slot, realizing the engagement of the handle shaft and the drive shaft. After hearing the unlocking prompt sound, rotating the handle will drive the bolt to rotate and unlock. Similarly, after unlocking, the first and second steel balls retract into their respective steel ball through holes, the handle shaft and the drive shaft separate, and each is in an idle state. When locking, after the tower door touches the magnetic door switch, the magnetic door switch will send a status command to the remote controller. However, the remote controller does not detect the Hall sensor signal. At this time, the remote controller will power on the first lock cylinder assembly and the second lock cylinder assembly. After hearing the locking prompt sound, the handle is rotated in the opposite direction, which will drive the bolt to the locking position. At this time, the Hall sensor will detect the magnet rotating with the bolt and then send the detection status to the remote controller. After receiving the magnetic door signal and the Hall sensor signal, the controller will de-energize the two sets of lock cylinder assemblies, and the handle shaft will be separated from the drive shaft again, and the locking will be successful. The pin circuit assembly, Hall effect circuit assembly, and door magnetic switch are all connected to the remote controller via lead wires. After the remote controller issues a command, it reaches the first and second lock cylinder assemblies through the pin circuit assembly. Upon hearing the unlocking prompt sound, the three levers on the handle shaft are turned to open or close the lock. The lock tongue position and door status are determined by detecting the status of the Hall effect sensor and the door magnetic switch, thus realizing door lock status monitoring. Compared with the prior art, the advantages of this invention are: (1) The present invention discloses a parallel double lock cylinder intelligent cylindrical lock, that is, the cylindrical lock has two independent lock holes, each hole has an independent lock cylinder assembly, the double lock cylinder assemblies are arranged side by side, work independently and do not affect each other, and can still be used normally even if one of the lock holes is damaged, thus improving reliability; (2) The present invention includes two sets of parallel and independent lock cylinder assemblies, a pin circuit assembly, a Hall circuit assembly, a conductive ring, a handle shaft, a main lock body, a transmission shaft, a limiting block, and a latch, etc. The two sets of lock cylinder assemblies are installed in parallel inside two independent lock cylinder cavities inside the handle shaft. The transmission shaft is fitted into the tail of the two sets of lock cylinder assemblies, and the tail of the transmission shaft is fixedly connected to the latch. The radial connection or disconnection of the handle shaft and the transmission shaft is achieved by the steel ball locking on the tail of the two sets of lock cylinder assemblies. When the lock cylinder assembly is not energized, the handle shaft and the transmission shaft are in an idle state. When either lock cylinder assembly is energized or the two sets of lock cylinder assemblies are energized, the handle shaft and the transmission shaft are in an idle state. When both components are powered on, the handle shaft and the drive shaft are in a linked state. At this time, turning the grip on the handle shaft will drive the bolt to rotate. When an authorized Bluetooth key is inserted into any lock cylinder component, the Bluetooth key and the lock cylinder component will identify each other. After successful identification, the lock cylinder component will be powered on. At this time, turning the handle shaft will unlock the lock. Since the two sets of lock cylinder components are installed in parallel and work independently without interfering with each other, one set of lock cylinder components can be selected for operation when using the Bluetooth key. The other set can be used as a backup lock cylinder. Moreover, the handle shaft is turned instead of the key when unlocking. This design improves the life and security of the lock and has a certain anti-theft function. (3) Two unlocking methods are set in this invention: a single lock cylinder working mode when using a Bluetooth key and a dual lock cylinder linkage mode when using remote control. When using a Bluetooth key to unlock, one of the two parallel and independent lock cylinder components can be selected for operation. The other group can be reserved as a spare lock cylinder. When one lock cylinder has a problem, the other lock cylinder can be used to unlock in an emergency, thereby avoiding the phenomenon of violent damage such as dismantling when there is only one lock cylinder and it cannot be unlocked. When using remote control, the remote controller powers on both lock cylinder components at the same time, and then the two lock cylinder components are linked to unlock. Even if one lock cylinder component cannot work properly, it will not affect the work of the other lock cylinder component, and remote unlocking can be achieved. Remote unlocking avoids the inconvenience of carrying physical keys by the personnel on the site, reduces the number of keys used, and reduces costs. Moreover, remote unlocking adds the lock tongue and door magnetic detection function, which can monitor whether the door lock is closed normally in real time, improves the unlocking efficiency and also improves the controllability of the door lock. Attached Figure Description

[0014] Figure 1 This is an exploded view of the assembly of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 2 This is a cross-sectional view of the assembly of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 3 This is a detailed structural diagram of the dust cover of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 4 This is a detailed structural diagram of the paddle of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 5Figures a and b are detailed structural diagrams of the handle shaft of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention. Figure 6 This is a cross-sectional view of the handle shaft assembly of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention. Figure 7 Figures a and b are detailed structural diagrams of the first and second lock cylinder components of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention. Figure 8 a, b, c, d, and e are detailed structural diagrams of the first insulating pad, the first conductive ring, the second insulating pad, the second conductive ring, and the insulating sleeve of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention. Figure 9 a and b are schematic diagrams showing the engagement and disengagement of the handle shaft and transmission shaft of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention. Figure 10 Figures a and b are detailed structural diagrams of the main lock body of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention. Figure 11 This is a detailed structural diagram of the drive shaft of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 12 This is a detailed structural diagram of the Hall circuit assembly of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 13 This is a detailed structural diagram of the pin circuit assembly of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 14 This is a detailed structural diagram of the limiting block of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 15 This is a detailed structural diagram of the magnet mounting assembly of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 16 This is a detailed structural diagram of the bolt of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 17 This is a detailed structural diagram of the handle fixing plate of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 18 This is a detailed structural diagram of the stop sleeve of an intelligent cylindrical lock with parallel double lock cylinders according to the present invention; Figure 19 This is a schematic diagram of the Bluetooth key unlocking circuit for a smart cylindrical lock with parallel double lock cylinders according to the present invention. Figure 20 This is a schematic diagram of the remote control circuit for a smart cylindrical lock with parallel double lock cylinders according to the present invention. Explanation of reference numerals in the attached figures: 1. Dust cover; 2. First mounting screw; 3. First spring; 4. Paddle; 5. Handle pivot; 6. Snap ring; 7. Handle fixing plate; 8. First insulating pad; 9. First conductive ring; 10. Second insulating seat; 11. Second conductive ring; 12. Insulating sleeve; 13. Second lock cylinder spring block; 14. Lock cylinder baffle; 15. Fourth spring; 16. Second mounting screw; 17. First lock cylinder assembly; 18. Second lock cylinder assembly; 19. Main lock body; 20. Third mounting screw; 21. Pin circuit assembly; 22. Tower door; 23. Stop sleeve; 24. Hall circuit assembly; 25. Drive shaft; 26. Second double round nut; 27. Limit block; 28. Magnet mounting assembly; 29. ​​Lock tongue; 30. First double round nut; 31. First lock cylinder spring block; 32. Third spring; 33. Second spring; 34. Fourth mounting screw; 101. First lock hole; 102. Second lock hole; 103. Protruding post; 104. Paddle limiting groove; 105. First water passage groove; 401. Paddle shifter boss; 402. Paddle shifter end face; 501. Dust cover groove; 502. Paddle groove; 503. First spring groove; 504. Second spring groove; 505. Third lock hole; 506. Fourth lock hole; 507. Protruding post hole; 508. Second water passage groove; 509. First limiting groove; 510. Handle; 511. Third spring cavity; 512. Fourth spring cavity; 513. First lock cylinder cavity; 514. Second lock cylinder cavity; 515. First groove; 516. Second groove; 517. First countersunk platform; 518. First screw hole; 519. First right end face of handle shaft; 520. Snap ring groove; 521. Second right end face of handle shaft; 701, Third groove; 702, Fourth groove; 703, First stud; 704, Third water passage groove; 801, Third boss; 802, Second limiting groove; 803, Left end face of the first insulating pad; 804, Right end face of the first insulating pad; 901, First conductive screw; 902, First conductive boss; 903, First conductive screw hole; 1001, Third limiting groove; 1002, Fourth boss; 1003, Left end face of the second insulating pad; 1101, Second conductive screw; 1102, Second conductive boss; 1103, Second conductive screw hole; 1201, First mounting through hole; 1202, Ninth boss; 1701, First lock cylinder housing; 1702, First boss; 1703, First steel ball shaft; 1704, First lock cylinder head; 1705, First steel ball; 1706, First steel ball through hole; 1707, First motor negative terminal; 1708, Third transmission screw. 1801, Second lock cylinder housing; 1802, Second boss; 1803, Second steel ball shaft; 1804, Second lock cylinder head; 1805, Second steel ball; 1806, Second steel ball through hole; 1807, Second motor negative terminal; 1808, Fourth transmission screw. 1901, First cavity; 1902, Second cavity; 1903, Third cavity; 1904, Fourth cavity; 1905, First stud hole; 1906, First cylindrical section; 1907, Second cylindrical section; 1908, Threaded section; 1909, First plane; 1910, Second plane; 1911, Fifth groove; 1912, First mounting groove; 1913, Right end face of the first cylindrical section; 1914, First wire guide groove; 1915, Second screw hole; 1916, First through hole; 1917, Second through hole; 1918, Third screw hole; 2101, First ejector pin; 210101, First ejector pin head; 2102, Second ejector pin; 210201, Second ejector pin head; 2103, Ejector pin circuit board; 210301, First conductor pad; 210302, Second conductor pad; 210303, First ejector pin pad; 210304, Second ejector pin pad; 2104, Eighth mounting screw; 2301, Fifth cavity; 2302, Sixth cavity; 2303, Third plane; 2304, Eighth boss; 2305, Second wire groove; 2306, Left end face of the fifth cavity; 2401, Hall sensor; 2402, fifth mounting screw; 2403, Hall circuit board; 240301, third wire pad; 240302, fourth wire pad; 240303, fifth wire pad; 2404, Hall mount; 2405, sixth mounting screw; 2406, wire clip; 2407, seventh mounting screw. 2501, First slot; 2502, Fifth boss; 2503, Left end face of the fifth boss; 2504, Square shaft; 2505, Threaded shaft; 2506, Round end face of the tail of the drive shaft; 2507, Middle section of the drive shaft. 2701, First square inner hole; 2702, Sixth boss; 2703, Seventh boss; 2801, Magnet mounting plate; 2802, Second square inner hole; 2803, Magnet; 2901, Third-party internal hole. Detailed Implementation

[0015] The specific implementation of the present invention is described below with reference to embodiments: It should be noted that the structures, proportions, sizes, etc. shown in this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0016] Example 1 like Figure 1 , 2 As shown, the present invention discloses an intelligent cylindrical lock with parallel double lock cylinders, including a dust cover 1, a handle shaft 5, a first conductive ring 9, a second conductive ring 11, a first lock cylinder assembly 17, a second lock cylinder assembly 18, a main lock body 19, a pin circuit assembly 21, a transmission shaft 25, a limiting block 27, and a lock tongue 29. The handle shaft 5 is fitted with a dust cover 1 at its head. The tail of the handle shaft 5 can rotate circumferentially and is axially limited at the head of the main lock body 19. The heads of the first lock cylinder assembly 17 and the second lock cylinder assembly 18 are installed side by side inside the handle shaft 5. The Bluetooth key passes through the dust cover 1 and the handle shaft 5 and is inserted into the first lock cylinder assembly 17 or the second lock cylinder assembly 18 for communication. The tails of the first lock cylinder assembly 17 and the second lock cylinder assembly 18 are fitted with the head of the transmission shaft 25. The steel balls of the first lock cylinder assembly 17 and the second lock cylinder assembly 18 cooperate with the inner wall of the transmission shaft 25 to achieve radial connection or disconnection between the handle shaft 5 and the transmission shaft 25. The head of the transmission shaft 25 is fitted inside the main lock body 19, and the tail of the transmission shaft 25 extends out of the main lock body 19. The outer diameter of the tail of the transmission shaft 25 is fitted with a limit block 27 and a lock tongue 29 from left to right. The limit block 27 and the lock tongue 29 rotate with the radial rotation of the transmission shaft 25. The first conductive ring 9 and the second conductive ring 11 are respectively insulated and radially limited on the handle shaft 5. The first conductive ring 9 and the second conductive ring 11 are respectively electrically connected to the first lock core assembly 17 and the second lock core assembly 18. The pin circuit assembly 21 is fixed to the bottom of the main lock body 19. The two pins of the pin circuit assembly 21 pass through the main lock body 19 and make elastic electrical contact with the first conductive ring 9 and the second conductive ring 11 respectively. The Bluetooth key is wirelessly connected to the background management program, and the smart terminal is wirelessly connected to the pin circuit assembly 21 through the remote controller.

[0017] The background management program is a mini-program or APP on a mobile phone, which communicates directly with the Bluetooth key. The mini-program or APP sends an unlocking command to the Bluetooth key, and then the key is inserted into the lock cylinder assembly to unlock the door; this is Bluetooth key unlocking. The smart terminal is a cloud management APP on a remote computer, which connects to the FSU device within the base station via a wireless network. This device communicates with the remote controller mentioned in this invention. The cloud management APP sends an unlocking command to the remote controller through the FSU device, and the remote controller then controls the lock cylinder assembly to unlock the door; this is remote unlocking. Example 2 like Figure 3 As shown, the dust cover 1 is provided with a first locking hole 101, a second locking hole 102, a protrusion 103, a paddle limiting groove 104 and a first water passage groove 105. The paddle limiting groove 104 is provided between the first locking hole 101 and the second locking hole 102, the protrusion 103 is provided at the rear end of the dust cover 1, and the first water passage groove 105 is provided on the circumference of the dust cover 1. like Figure 4 As shown, the paddle 4 is provided with a paddle boss 401, which is limited within the paddle limiting groove 104 and can reciprocate along the length direction of the paddle limiting groove. like Figure 5 As shown, the handle shaft 5 has a dust cover groove 501, a paddle groove 502, a first spring groove 503, a second spring groove 504, a third lock hole 505, a fourth lock hole 506 and a protruding column hole 507 on its head end face, and a second water passage groove 508 and three grippers 510 are provided on the circumference of the handle shaft 5 head. A paddle 4, a first spring 3, and a second spring 33 are installed between the dust cover 1 and the handle shaft 5. The first spring 3 is installed in the first spring groove 503 at the head of the handle shaft 5, and the second spring 33 is installed in the second spring groove 504 at the head of the handle shaft 5. The paddle 4 includes a paddle boss 401 and a paddle end face 402 arranged perpendicularly to each other. The paddle end face 402 is located in the paddle groove 502 at the head of the handle shaft 5, and the paddle end face 402 is in contact with the first spring 3 and the second spring 33. The paddle boss 401 is limited to the paddle limiting groove 104. The paddle 4 reciprocates in the paddle limiting groove 104 and the paddle groove 502 under the elastic force of the two sets of springs. like Figure 2As shown, the depth of the dust cover groove 501 at the head of the handle shaft 5 is equal to the thickness of the dust cover 1. The protruding hole 507 on the handle shaft 5 is through the handle shaft 5. The protruding post 103 passing through the protruding hole 507 is fixedly connected by two first mounting screws 2, thereby fixing the dust cover 1 to the handle shaft 5. After the dust cover 1 and the handle shaft 5 are fixedly connected, the end face of the handle shaft 5 and the left end face of the dust cover 1 are in the same plane. The first locking hole 101 and the third locking hole 505 are corresponding and connected, and the second locking hole 102 and the fourth locking hole 506 are corresponding and connected. The third locking hole 505 at the head of the handle shaft 5 is provided with a third spring cavity 511 and a first lock cylinder cavity 513 to the right in sequence. The fourth locking hole 506 is provided with a fourth spring cavity 512 and a second lock cylinder cavity 514 to the right in sequence. The first lock cylinder spring block 31 and the third spring 32 are installed sequentially from left to right in the third spring cavity 511, and the second lock cylinder spring block 13 and the fourth spring 15 are installed sequentially from left to right in the fourth spring cavity 512. The first lock cylinder spring block 31 and the second lock cylinder spring block 13 can reciprocate within the third spring cavity 511 and the fourth spring cavity 512 under the elastic force of the third spring 32 and the fourth spring 15, respectively. The diameters of the third lock hole 505, the third spring cavity 511, the first lock cylinder cavity 513, the fourth lock hole 506, the fourth spring cavity 512, and the second lock cylinder cavity 514 increase sequentially from left to right.

[0018] Example 3 like Figure 6 , 7 As shown, the first lock cylinder housing 1701 in the first lock cylinder assembly 17 has a first boss 1702 on its exterior, and the second lock cylinder housing 1801 in the second lock cylinder assembly 18 has a second boss 1802 on its exterior. The first lock cylinder cavity 513 has a first groove 515 inside, and the second lock cylinder cavity 514 has a second groove 516 inside. The first lock cylinder assembly 17 is fitted and axially and radially limited within the first lock cylinder cavity 513, and the second lock cylinder assembly 18 is fitted and axially and radially limited within the second lock cylinder cavity 514. A lock cylinder baffle 14 is fixedly provided at the right end of the first lock cylinder cavity 513 and the second lock cylinder cavity 514. The lock cylinder baffle 14 is fixedly connected to the first countersunk 517 of the handle shaft 5 by a second mounting screw 16 to prevent the first lock cylinder assembly 17 and the second lock cylinder assembly 18 from moving to the right. Preferably, the first lock cylinder assembly 17 and the second lock cylinder assembly 18 are each provided with a first lock cylinder head 1704 and a second lock cylinder head 1804 at their heads, and a first steel ball 1705 and a second steel ball 1805 at their tails. The internal working principle of the first lock cylinder assembly 17 and the second lock cylinder assembly 18 is existing technology and will not be described in detail here. When the lock cylinder is not working, the two sets of steel balls are located in the first steel ball through hole 1706 and the second steel ball through hole 1806, respectively. When the lock cylinder is working, the steel balls pass through the first steel ball through hole 1706 and the second steel ball through hole 1806 individually or simultaneously and are locked in the first slot 2501 on the left side of the drive shaft 25, thereby realizing the engagement and disengagement of the handle shaft 5 and the drive shaft 25.

[0019] Example 4 like Figure 7 , 8 As shown in Figures 19 and 20, the negative terminal 1707 of the first motor inside the first lock cylinder assembly 17 is electrically connected to the first lock cylinder housing 1701 via a wire. One end of the wire is soldered to the negative terminal 1707 of the first motor, and the other end is fixed to the first lock cylinder housing 1701 via a third conductive screw 1708. The negative terminal 1807 of the second motor inside the second lock cylinder assembly 18 is electrically connected to the second lock cylinder housing 1801 via a wire. One end of the wire is soldered to the negative terminal 1807 of the second motor, and the other end is fixed to the second lock cylinder housing 1801 via a fourth conductive screw 1808. The first lock cylinder housing 1701 and the second lock cylinder housing 1801 are electrically connected to the remote controller. Since the entire cylindrical lock body shell and the lock cylinder share the same negative terminal at this time, a wire can be led out from any position on the cylindrical lock body shell to connect to the remote controller, thereby realizing the negative terminal circuit connection of the lock cylinder.

[0020] like Figure 6 As shown, from left to right, the outer diameter of the handle shaft 5 is fitted with a first insulating pad 8, a first conductive ring 9 and a first conductive screw 901 for fixing the wire, a second insulating pad 10, a second conductive ring 11 and a second conductive screw 1101 for fixing the wire, and an insulating sleeve 12. The handle shaft 5 has a first limiting groove 509 at its tail end. The first insulating pad 8 has a second limiting groove 802 and a third protrusion 801. The first insulating pad 8 is fitted onto the tail end of the handle shaft 5, and the third protrusion 801 slides along the first limiting groove 509 until the left end face 803 of the first insulating pad coincides with the second right end face 521 of the handle shaft. The first conductive ring 9 is fitted onto the first insulating pad 8, and the first conductive protrusion 902 slides along the second limiting groove 802 until it can no longer slide. The second insulating pad 10 has a third limiting groove 1001 and a fourth protrusion 1002. The second insulating pad 10 is fitted onto the tail end of the handle shaft 5, and... The fourth protrusion 1002 slides along the first limiting groove 509 until the left end face 1003 of the second insulating pad coincides with the right end face 804 of the first insulating pad. The second conductive ring 11 is fitted onto the second insulating pad 10 and the second conductive protrusion 1102 slides along the third limiting groove 1001 until it can no longer slide. The insulating sleeve 12 is evenly provided with three first mounting through holes 1201 and a ninth protrusion 1202 in the circumferential direction. The corresponding handle shaft 5 is evenly provided with three first screw holes 518 in the circumference. The three fourth mounting screws 34 pass through the three first mounting through holes 1201 respectively to fix the insulating sleeve 12 and the handle shaft 5.

[0021] like Figure 6 As shown, the first conductive screw 901 on the first conductive ring 9 electrically connects the positive terminal of the motor in the first lock core assembly 17 to the first conductive boss 902 via a wire. The first conductive boss 902 is provided with a first conductive screw hole 903, and the first conductive screw 901 passes through the first conductive screw hole 903 to fix the wire to the first conductive boss 902. The second conductive screw 1101 on the second conductive ring 11 electrically connects the positive terminal of the motor in the second lock core assembly 18 to the second conductive boss 1102 via a wire. The second conductive boss 1102 is provided with a second conductive screw hole 1103, and the second conductive screw 1101 passes through the second conductive screw hole 1103 to fix the wire to the second conductive boss 1102.

[0022] After the positive terminal of the motor is led to the conductive screw, the two conductive rings respectively contact the two spring pins on the pin circuit assembly 21, as detailed in the section on pin circuit assembly 21.

[0023] Example 5 like Figure 11 As shown, the head of the drive shaft 25 is sleeved on the first steel ball shaft 1703 of the first lock cylinder assembly 17 and the second steel ball shaft 1803 of the second lock cylinder assembly 18. The drive shaft 25 is provided with a fifth boss 2502. The left end face 2503 of the fifth boss is in close contact with the first right end face 519 of the handle shaft. The tail of the drive shaft 25 is provided with a square shaft 2504 with a square cross section and a threaded shaft 2505 with threads. The square shaft 2504 and the threaded shaft 2505 are exposed at the tail of the main lock body 19. like Figure 14 As shown, the limiting block 27 is provided with a first square inner hole 2701, a sixth protrusion 2702 is provided on the left end face, and a seventh protrusion 2703 with a square cross-section is provided on the right end face. The limiting block 27 is fitted onto the square shaft 2504 at the tail of the transmission shaft 25 and is in close contact with the round end face 2506 at the tail of the transmission shaft. like Figure 15 As shown, the magnet mounting plate 2801 in the magnet mounting assembly 28 is provided with a second square inner hole 2802 with a square cross section. The second square inner hole 2802 is fitted onto the seventh boss 2703 on the right side of the limiting block 27. A rectangular magnet 2803 is fixedly connected to the magnet mounting plate 2801 by screws. like Figure 16 As shown, the third-shaped inner hole 2901 on the locking tongue 29 is fitted onto the square shaft 2503 at the tail of the transmission shaft 25, and the left end face of the locking tongue 29 is in close contact with the right end face of the seventh protrusion 2703 of the limiting block. The first double round nut 30 is threadedly connected to the threaded shaft 2505 at the tail of the transmission shaft 25 and is in close contact with the right end face of the locking tongue 29. The drive shaft 25 is fixedly connected to the limiting block 27, the magnet mounting assembly 28, and the locking tongue 29, and can rotate 90° simultaneously. Example 6 like Figure 10 As shown, the main lock body 19 has four cavities arranged from left to right: a first cavity 1901, a second cavity 1902, a third cavity 1903, and a fourth cavity 1904. The inner diameter of the four cavities decreases from left to right. The first cavity 1901 is fitted onto the handle fixing plate 7, and the depth of the first cavity is the same as the thickness of the handle fixing plate 7. The retaining ring 6, which is used to constrain the axial movement of the handle shaft 5, is located in the second cavity 1902 and the retaining ring groove 520. The right end of the handle shaft 5, the first insulating pad 8, the first conductive ring 9, the second insulating pad 10, the second conductive ring 11, and the insulating sleeve 12 are located in the third cavity 1903. The middle section 2507 of the transmission shaft is located in the fourth cavity 1904. Both the handle shaft 5 and the transmission shaft 25 can rotate circumferentially inside the main lock body 19. The handle shaft 5 is fitted with a dust cover 1 at its head. The handle shaft 5 is rotatably fitted onto the head of the main lock body 19. The handle shaft 5 is fixedly connected to the dust cover 1 by two sets of first mounting screws 2. The handle shaft 5 is rotatably fitted onto the handle fixing plate 7 by a snap ring 6. The right end of the handle fixing plate 7 is fixedly connected to the head of the main lock body 19. The handle shaft 5 is disengaged from the head of the drive shaft 25 in the middle of the main lock body 19. The drive shaft 25 is fitted with a limit block 27, a magnet mounting assembly 28, a lock tongue 29, and a first double round nut 30 from left to right at its tail.

[0024] like Figure 17As shown, the handle fixing plate 7 has a third groove 701 and a fourth groove 702 on the left side. The diameter of the third groove 701 is larger than that of the fourth groove 702. Six first studs 703 are evenly arranged on the right end face of the handle fixing plate 7, and a third water passage groove 704 is arranged on the radial circumference. like Figure 10 As shown, the inner end face of the first cavity 1901 of the main lock body 19 is provided with six circumferentially distributed first stud holes 1905. During installation, the six first studs 703 at the right end of the handle fixing plate 7 are passed through the first stud holes 1905, and six third mounting screws 20 are screwed into the first stud holes 1905 at the right end of the first cavity 1901 of the main lock body 19 to the left, so as to achieve a fixed connection between the handle fixing plate 7 and the main lock body 19.

[0025] like Figure 10 As shown, the main lock body 19 is provided with a first cylindrical section 1906, a second cylindrical section 1907 and a threaded section 1908 from left to right on the outside, with the diameter decreasing from left to right. The rightmost end face of the threaded section 1908 is provided with a fifth groove 1911 with an included angle of 90°. During installation, the first cylindrical section 1906 is located outside the tower door 22 and the right end face 1913 of the first cylindrical section is in close contact with the outside of the tower door 22. The second cylindrical section 1907 is provided with two symmetrical first planes 1909. The second cylindrical section 1907 is provided with a first mounting groove 1912 and a first wire passage groove 1914 below it.

[0026] Example 7 like Figure 18 As shown, a stop sleeve 23 is also fitted outside the main lock body 19. The stop sleeve 23 is provided with a fifth cavity 2301 and a sixth cavity 2302. Two symmetrical third planes 2303 are provided on the inner side of the fifth cavity 2301, and an eighth boss 2304 and a second wire groove 2305 are provided on the outer side of the fifth cavity 2301. The fifth cavity 2301 is fitted onto the second cylindrical section 1907 of the main lock body 19, and the two third planes 2303 in the fifth cavity 2301 and the two first planes on the second cylindrical section 1907 are also fitted onto the main lock body 19. When the fifth cavity is parallel to the left end face 2306 of the fifth cavity, it is in close contact with the inner side of the tower door 22 and the eighth boss 2304 is embedded in the groove on the inner side of the tower door 22. The sixth cavity 2302 is sleeved on the threaded section 1908 of the main lock body 19. The threaded section 1908 is externally connected to two second double round nuts 26. By tightening the second double round nuts 26, the entire lock body can be fixed on the tower door 22. The fifth groove 1911 at the right end of the threaded section 1908 is embedded with a sixth boss 2702 that allows the limiting block 27 to rotate 90°.

[0027] The inner plane of the first mounting groove 1912 below the second cylindrical section 1907 of the main lock body 19 is provided with a first through hole 1916, a second through hole 1917, and two third screw holes 1918; for example Figure 13 As shown, the ejector pin circuit assembly 21 includes a first ejector pin 2101, a second ejector pin 2102, an ejector pin circuit board 2103, and an eighth mounting screw 2104. The ejector pin circuit assembly 21 is fixed to the inner plane of the first mounting groove 1912 by two eighth mounting screws 2104. The ejector pin circuit board 2103 is provided with a first wire pad 210301, a second wire pad 210302, a first ejector pin pad 210303, and a second ejector pin pad 210304. The first ejector pin 2101 and the second ejector pin 2102 pass through and are soldered to the first ejector pin pad 210303 and the second ejector pin pad 210304, respectively. The first ejector pin pad 210303 is electrically connected to the first wire pad 210301, and the second ejector pin pad 2102 is electrically connected to the first wire pad 210301. The pad 210304 is electrically connected to the second wire pad 210302. The ejector pin circuit board 2103 is fixed in the first mounting groove 1912 by the eighth mounting screw 2104. The first ejector pin 2101 and the second ejector pin 2102 pass through the first through hole 1916 and the second through hole 1917 located on the inner plane of the first mounting groove 1912, respectively. The head of the first ejector pin 210101 and the head of the second ejector pin 210201 make elastic electrical contact with the second conductive ring 11 and the first conductive ring 9, respectively. The first wire pad 210301 and the second wire pad 210302 are respectively welded with two wires. These wires are respectively connected to the remote controller to realize the positive circuit connection between the first lock cylinder assembly 17 and the second lock cylinder assembly 18 and the remote controller.

[0028] Example 8 The right side of the threaded section 1908 at the tail of the main lock body 19 is provided with two symmetrical second planes 1910, wherein the upper plane is provided with two second screw holes 1915. The Hall circuit assembly 24 is fixed in the second screw holes 1915 on the upper plane by the seventh mounting screw 2407, and the Hall sensor 2401 is directly opposite the magnet 2803.

[0029] like Figure 12 As shown, the Hall circuit assembly 24 includes a Hall sensor 2401, a Hall circuit board 2403, a Hall mounting base 2404, and a wire clamp 2406. The Hall sensor 2401 is soldered onto the Hall circuit board 2403. The Hall circuit board 2403 is fixed onto the Hall mounting base 2404 by a fifth mounting screw 2402. The wire clamp 2406 is fixed onto the Hall mounting base 2404 by a sixth mounting screw 2405. The Hall circuit board 2403 is provided with a third wire pad 240301, a fourth wire pad 240302, and a fifth wire pad 240303. The three wire pads are electrically connected to the three pins of the Hall sensor 2401, and three wires are soldered to the three wire pads respectively. The pin circuit assembly 21, Hall circuit assembly 24, and door magnetic switch are all connected to the remote controller via lead wires. The door magnetic switch and remote controller are mature technologies and will not be described in detail here. After the remote controller issues a command, it reaches the first lock cylinder assembly 17 and the second lock cylinder assembly 18 through the pin circuit assembly 21. After hearing the unlocking prompt sound, the three grips 510 on the handle shaft 5 are turned to open and close the lock. The position of the bolt 29 and the status of the door 22 are determined by detecting the status of the Hall sensor 2401 and the door magnetic switch, thereby realizing door lock status monitoring.

[0030] Example 9 This invention discloses a method for using a parallel double-lock cylinder intelligent cylindrical lock. The above-mentioned parallel double-lock cylinder intelligent cylindrical lock is installed in the required position. At this time, the first steel ball 1705 and the second steel ball 1805 of the first lock cylinder assembly 17 and the second lock cylinder assembly 18 are not stuck in the first slot 2501 in their respective steel ball through holes. The handle shaft 5 and the transmission shaft 25 are in a separated state, that is, they are in an idle state. When using a Bluetooth key to unlock, the Bluetooth key must first be authorized. Then, the authorized Bluetooth key is inserted into the first lock cylinder head 1704 through the first keyhole 101 and the third keyhole 505, or into the second lock cylinder head 1804 through the second keyhole 102 and the fourth keyhole 506. An unlocking command is sent to the first lock cylinder assembly 17 or the second lock cylinder assembly 18. Upon receiving the command, the internal motor of the first lock cylinder assembly 17 or the second lock cylinder assembly 18 starts to rotate, thereby pushing out the first steel ball 1705 or the second steel ball 1805 and locking it into the first slot 2501, realizing the engagement of the handle shaft 5 and the drive shaft 25. After hearing the unlocking prompt sound, rotating the gripper 510 will drive the bolt 29 to rotate and unlock. After unlocking, the first steel ball 1705 or the second steel ball 1805 will retract into their respective steel ball through holes, and the handle shaft 5 and the drive shaft 25 will separate again and each will be in an idle state. When using remote unlocking, the smart terminal sends an unlocking command to the remote controller. The remote controller energizes the first conductive ring 9 and the second conductive ring 11 through the pin circuit assembly 21. The first conductive ring 9 and the second conductive ring 11 transmit electrical signals to the first lock cylinder assembly 17 and the second lock cylinder assembly 18, respectively. After being energized, the internal motors of the two sets of lock cylinder assemblies start to rotate, thereby pushing out the first steel ball 1705 and the second steel ball 1805 and locking them into the first slot 2501, realizing the engagement of the handle shaft 5 and the transmission shaft 25. After hearing the unlocking prompt sound, rotating the gripper 510 can drive the bolt 29 to rotate and unlock. Similarly, after unlocking, the first steel ball 1705 and the second steel ball 1805 retract into their respective steel ball through holes, the handle shaft 5 separates from the transmission shaft 25, and each is in an idle state. When locking, after the door 22 touches the magnetic door switch, the magnetic door switch sends a status command to the remote controller. However, the remote controller does not detect the Hall sensor 2401 signal. At this time, the remote controller energizes the first lock cylinder assembly 17 and the second lock cylinder assembly 18. After hearing the locking prompt sound, the handle 510 is rotated in the opposite direction, which in turn drives the bolt 29 to the locking position. At this time, the Hall sensor 2401 detects the magnet 2803 rotating with the bolt 29, and then sends the detection status to the remote controller. The controller receives the magnetic door signal and the Hall sensor 2401 signal. After the signal is received, the power to the two sets of lock cylinder assemblies is cut off, and the handle shaft 5 and the transmission shaft 25 are separated again, and the lock is successfully closed. The pin circuit assembly 21, the Hall circuit assembly 24 and the door magnetic switch are all connected to the remote controller by wires. After the remote controller issues a command, it reaches the first lock cylinder assembly 17 and the second lock cylinder assembly 18 through the pin circuit assembly 21. After hearing the unlocking prompt sound, the three grips 510 on the handle shaft 5 are turned to open and close the lock. The position of the bolt 29 and the status of the door 22 are determined by detecting the status of the Hall sensor 2401 and the door magnetic switch, so as to realize the door lock status monitoring.

[0031] A method for using a smart cylindrical lock with parallel double lock cylinders includes the following two aspects: 1. Bluetooth key unlocking like Figure 19 As shown, before unlocking, the handle shaft and drive shaft are radially disconnected, and the drive shaft and bolt are in an idle state. When unlocking, firstly, an authorized Bluetooth key is obtained. The Bluetooth key is authorized through the background management program. Then, the authorized Bluetooth key transmits the unlocking information to the first lock cylinder assembly through the first keyhole and the third keyhole, or to the second lock cylinder assembly through the second keyhole and the fourth keyhole. The first or second motor inside the first or second lock cylinder assembly starts to rotate, causing the steel ball at the tail of the first or second lock cylinder assembly to pop out and get stuck in the first slot on the left side of the drive shaft, so that the handle shaft and drive shaft are radially connected. At this time, rotating the gripper at the head of the handle shaft drives the handle shaft and drive shaft to rotate, which in turn drives the bolt to rotate, completing the unlocking operation. Since the first lock cylinder assembly and the second lock cylinder assembly are installed side by side in the first lock cylinder cavity and the second lock cylinder cavity, and the internal structure of the two sets of lock cylinder assemblies is exactly the same, there is no need to distinguish which set of lock cylinders to use when using Bluetooth key to unlock. Either set of lock cylinders can be selected to complete the unlocking. The two sets of lock cylinders are located in two keyholes, work independently, and have both main and backup functions, which overcomes the security deficiencies caused by a single set of keyholes and improves the reliability of the lock.

[0032] Remote unlocking like Figure 20As shown, remote unlocking allows locksmiths to unlock the door without carrying a physical key, using a mobile phone or PC terminal for remote control, information verification, and command issuance. During unlocking, upon receiving the unlocking command from the terminal platform, the controller immediately energizes the first and second motors inside the first and second lock cylinder assemblies. The energized motors rotate, causing the steel balls at the tails of the first and second lock cylinder assemblies to pop out and engage in the first slot on the left side of the drive shaft, radially connecting the handle shaft and the drive shaft. Rotating the gripper at the head of the handle shaft then rotates the handle shaft and the drive shaft, thereby rotating the bolt and completing the unlocking action. In this invention, both the first and second lock cylinder assemblies receive the unlocking command and operate simultaneously, significantly improving unlocking efficiency. When locking, if the controller receives the door magnetic status but not the bolt status, it is determined that the bolt has not reached the designated position. The controller then powers on both sets of lock cylinder components and prompts the operator to rotate the handle. By rotating the handle, the bolt is moved to the designated position. After the Hall switch detects the bolt position, it sends a status command to the controller. When both the door magnetic signal and the bolt signal are received simultaneously, the locking is considered successful.

[0033] The working principle of this invention is as follows: like Figure 1 , 9 As shown in Figure 19, the states of the two sets of lock cylinders of the intelligent cylindrical lock of the present invention when locked are as follows: Figure 9 As shown in b, neither the first steel ball 1705 nor the second steel ball 1805 is engaged in the first slot 2501 within their respective ball through holes. The handle shaft 5 and the drive shaft 25 are separated, meaning they are both in a free-rotating state. When unlocking with a Bluetooth key, the Bluetooth key must first be authorized. Then, the authorized Bluetooth key is inserted sequentially through the first keyhole 101 and the third keyhole 505 into the first lock cylinder head 1704, or sequentially through the second keyhole 102 and the fourth keyhole 506 into the second lock cylinder head 1804, sending an unlocking command to the first... Upon receiving the command, the internal motor of either lock cylinder assembly 17 or the second lock cylinder assembly 18 begins to rotate, thereby pushing out the first steel ball 1705 or the second steel ball 1805 and engaging it in the first slot 2501. This achieves engagement between the handle shaft 5 and the drive shaft 25. After hearing the unlocking prompt sound, rotating the gripper 510 will drive the bolt to rotate and unlock. After unlocking, the first steel ball 1705 or the second steel ball 1805 retracts into its respective ball through hole, and the handle shaft 5 and the drive shaft 25 separate again and are in an idle state. The locking process is similar. Since the two sets of lock cylinders are distributed in two parallel keyholes, they work independently and do not affect each other. When using a Bluetooth key to unlock, only one keyhole needs to be inserted, and the other keyhole can be used as a spare, greatly improving the security of the lock.

[0034] like Figure 20As shown, when using remote unlocking, the smart terminal sends an unlocking command to the remote controller. The remote controller energizes the first conductive ring 9 and the second conductive ring 11. The first conductive ring 9 and the second conductive ring 11 transmit electrical signals to the first lock cylinder assembly 17 and the second lock cylinder assembly 18, respectively. After energization, the internal motors of the two lock cylinder assemblies begin to rotate, thereby pushing out the first steel ball 1705 and the second steel ball 1805 and locking them into the first slot 2501, realizing the engagement of the handle shaft 5 and the transmission shaft 25. Figure 9 As shown in Figure a, after hearing the unlocking prompt, rotating the handle 510 will cause the bolt to rotate and unlock. Similarly, after unlocking, the first steel ball 1705 and the second steel ball 1805 retract into their respective ball through holes, the handle shaft 5 separates from the drive shaft 25, and each is in an idle state. When locking, after the tower door touches the door magnetic switch, the door magnetic switch will send a status command to the remote controller. However, the controller does not detect the Hall sensor 2401 signal. At this time, the controller will energize the first lock cylinder assembly 17 and the second lock cylinder assembly 18. After hearing the locking prompt, rotating the handle 510 in the opposite direction will cause the bolt 29 to rotate to the locking position. At this time, the Hall sensor 2401 will detect the magnet 2803 rotating with the bolt 29, and then send the detection status to the remote controller. After receiving the door magnetic signal and the Hall sensor 2401 signal, the controller will de-energize the two sets of lock cylinder assemblies, and the handle shaft 5 will separate from the drive shaft 25 again, and the locking will be successful. When remotely controlled, both sets of lock cylinder components work simultaneously, and even if one set of lock cylinders fails to work, it will not affect the opening and closing of the lock.

[0035] This invention discloses a parallel intelligent cylindrical lock, mainly comprising two sets of parallel and independent lock cylinder assemblies, a handle shaft, a main lock body, a drive shaft, and a bolt. The two sets of lock cylinder assemblies are installed side-by-side in two independent lock holes on the handle shaft. The drive shaft is fitted onto the tails of the two sets of lock cylinder assemblies at the end of the handle shaft. When either set of lock cylinder assemblies works individually or simultaneously, the handle shaft and drive shaft can engage and drive each other. In this case, rotating the handle on the handle shaft will drive the bolt to rotate. When neither set of lock cylinder assemblies is working, the handle shaft and drive shaft are separated, and rotating the handle on the handle shaft will not drive the bolt to rotate. This structure effectively improves the security of the lock. The two sets of lock cylinders in this invention, one main and one backup, are functionally interchangeable, improving unlocking efficiency and service life.

[0036] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

[0037] Many other changes and modifications can be made without departing from the concept and scope of this invention. It should be understood that this invention is not limited to the specific embodiments, and the scope of this invention is defined by the appended claims.

Claims

1. A smart cylindrical lock with parallel double lock cylinders, characterized in that: It includes a dust cover (1), a handle shaft (5), a first conductive ring (9), a second conductive ring (11), a first lock cylinder assembly (17), a second lock cylinder assembly (18), a main lock body (19), a pin circuit assembly (21), a drive shaft (25), a limit block (27), and a bolt (29). The handle shaft (5) has a dust cover (1) fitted on its head. The handle shaft (5) can rotate circumferentially and is axially confined to the head of the main lock body (19). The heads of the first lock cylinder assembly (17) and the second lock cylinder assembly (18) are installed side by side inside the handle shaft (5). The Bluetooth key passes through the dust cover (1) and the handle shaft (5) and is inserted into the first lock cylinder assembly (17) or the second lock cylinder assembly (18) for communication. The tails of the first lock cylinder assembly (17) and the second lock cylinder assembly (18) are fitted onto the drive shaft (25). The steel balls of the first lock cylinder assembly (17) and the second lock cylinder assembly (18) cooperate with the inner wall of the drive shaft (25) to achieve radial connection or disconnection between the handle shaft (5) and the drive shaft (25). The head of the drive shaft (25) is fitted inside the main lock body (19), and the tail of the drive shaft (25) extends out of the main lock body (19). The outer diameter of the tail of the drive shaft (25) is fitted with a limit block (27) and a lock tongue (29) from left to right. The limit block (27) and the lock tongue (29) rotate with the radial rotation of the drive shaft (25). The first conductive ring (9) and the second conductive ring (11) are respectively insulated and radially limited on the handle shaft (5), and the first conductive ring (9) and the second conductive ring (11) are respectively electrically connected to the first lock core assembly (17) and the second lock core assembly (18); The pin circuit assembly (21) is fixed to the bottom of the main lock body (19). The two pins of the pin circuit assembly (21) pass through the main lock body (19) and make elastic electrical contact with the first conductive ring (9) and the second conductive ring (11). The Bluetooth key is wirelessly connected to the background management program, and the smart terminal is wirelessly connected to the pin circuit assembly (21) through the remote controller.

2. The intelligent cylindrical lock with parallel double lock cylinders according to claim 1, characterized in that: The dust cover (1) is provided with a first locking hole (101), a second locking hole (102), a protruding post (103), a paddle limiting groove (104) and a first water passage groove (105). The paddle limiting groove (104) is located between the first locking hole (101) and the second locking hole (102). The protruding post (103) is located at the rear end of the dust cover (1). The first water passage groove (105) is located on the circumference of the dust cover (1). The handle shaft (5) has a dust cover groove (501), a paddle groove (502), a first spring groove (503), a second spring groove (504), a third lock hole (505), a fourth lock hole (506), and a protruding column hole (507) on its head end face. The handle shaft (5) also has a second water passage groove (508) and three grips (510) on its head circumference. A paddle (4), a first spring (3), and a second spring (33) are installed between the dust cover (1) and the handle shaft (5). The first spring (3) is installed in the first spring groove (503) at the head of the handle shaft (5), and the second spring (33) is installed in the second spring groove (504) at the head of the handle shaft (5). The paddle (4) includes a paddle boss (401) and a paddle end face (402) arranged perpendicularly to each other. The paddle end face (402) is located in the paddle groove (502) at the head of the handle shaft (5), and the paddle end face (402) is in contact with the first spring (3) and the second spring (33). The paddle boss (401) is limited to the paddle limiting groove (104). The paddle (4) reciprocates in the paddle limiting groove (104) and the paddle groove (502) under the elastic force of the two sets of springs. The depth of the dust cover groove (501) at the head of the handle shaft (5) is equal to the thickness of the dust cover (1). The protruding hole (507) on the handle shaft (5) is through the left and right. Two first mounting screws (2) pass through the protruding hole (507) and are fixedly connected to the protruding post (103) to realize the fixation of the dust cover (1) and the handle shaft (5). After the dust cover (1) and the handle shaft (5) are fixedly connected, the end face of the head of the handle shaft (5) and the left end face of the dust cover (1) are located in the same plane. The first lock hole (101) is positioned and connected to the third lock hole (505), and the second lock hole (102) is positioned and connected to the fourth lock hole (506).

3. The intelligent cylindrical lock with parallel double lock cylinders according to claim 2, characterized in that: The third lock hole (505) at the head of the handle shaft (5) is provided with a third spring cavity (511) and a first lock cylinder cavity (513) in sequence to the right, and the fourth lock hole (506) is provided with a fourth spring cavity (512) and a second lock cylinder cavity (514) in sequence to the right. The first lock cylinder spring block (31) and the third spring (32) are installed in the third spring cavity (511) from left to right, and the second lock cylinder spring block (13) and the fourth spring (15) are installed in the fourth spring cavity (512) from left to right. The first lock cylinder spring block (31) and the second lock cylinder spring block (13) move back and forth in the third spring cavity (511) and the fourth spring cavity (512) under the elastic force of the third spring (32) and the fourth spring (15), respectively. The diameters of the third lock hole (505), the third spring cavity (511) and the first lock cylinder cavity (513) increase from left to right, and the diameters of the fourth lock hole (506), the fourth spring cavity (512) and the second lock cylinder cavity (514) increase from left to right.

4. The intelligent cylindrical lock with parallel double lock cylinders according to claim 3, characterized in that: The first lock cylinder assembly (17) has a first boss (1702) on the outside of the first lock cylinder housing (1701), and the second lock cylinder assembly (18) has a second boss (1802) on the outside of the second lock cylinder housing (1801). The first lock cylinder cavity (513) has a first groove (515) inside, and the second lock cylinder cavity (514) has a second groove (516) inside. The first groove (515) engages with the first boss (1702), and the second groove (516) engages with the second boss (1802). In conjunction, the first lock cylinder assembly (17) is fitted and axially and radially limited within the first lock cylinder cavity (513), and the second lock cylinder assembly (18) is fitted and axially and radially limited within the second lock cylinder cavity (514). A lock cylinder baffle (14) is fixedly provided at the right end of the first lock cylinder cavity (513) and the second lock cylinder cavity (514). The lock cylinder baffle (14) is fixedly connected to the first countersunk (517) of the handle shaft (5) by the second mounting screw (16) to prevent the first lock cylinder assembly (17) and the second lock cylinder assembly (18) from moving to the right. The first lock cylinder assembly (17) and the second lock cylinder assembly (18) are respectively provided with a first lock cylinder head (1704) and a second lock cylinder head (1804) at their heads, and a first steel ball (1705) and a second steel ball (1805) are respectively provided at their tails. When the first lock cylinder assembly (17) and the second lock cylinder assembly (18) are not in operation, the first steel ball (1705) and the second steel ball (1805) are respectively located at the first lock cylinder head (1704) and the second lock cylinder assembly (1804). When the first lock cylinder assembly (17) and the second lock cylinder assembly (18) are working, the first steel ball (1705) and the second steel ball (1805) pass through the first steel ball through hole (1706) and the second steel ball through hole (1806) individually or simultaneously and are locked in the first slot (2501) on the left side of the drive shaft (25), thereby realizing the engagement and disengagement of the handle shaft (5) and the drive shaft (25).

5. The intelligent cylindrical lock with parallel double lock cylinders according to claim 4, characterized in that: The negative terminal (1707) of the first motor inside the first lock cylinder assembly (17) is electrically connected to the first lock cylinder housing (1701) via a wire. One end of the wire is soldered to the negative terminal (1707) of the first motor, and the other end is fixed to the first lock cylinder housing (1701) via a third conductive screw (1708). The negative terminal (1807) of the second motor inside the second lock cylinder assembly (18) is electrically connected to the second lock cylinder housing (1801) via a wire. One end of the wire is soldered to the negative terminal (1807) of the second motor, and the other end is fixed to the second lock cylinder housing (1801) via a fourth conductive screw (1808). The first lock cylinder housing (1701) and the second lock cylinder housing (1801) are electrically connected to the remote controller. The handle shaft (5) is fitted with a first insulating pad (8), a first conductive ring (9) and a first conductive screw (901) for fixing the wire, a second insulating pad (10), a second conductive ring (11) and a second conductive screw (1101) for fixing the wire, and an insulating sleeve (12) from left to right on the outer diameter of the tail. The handle shaft (5) is provided with a first limiting groove (509) at its tail end. The first insulating pad (8) is provided with a second limiting groove (802) and a third protrusion (801). The first insulating pad (8) is fitted onto the tail end of the handle shaft (5), and the third protrusion (801) slides along the first limiting groove (509) until the left end face (803) of the first insulating pad coincides with the second right end face (521) of the handle shaft. The first conductive ring (9) is fitted onto the first insulating pad (8), and the first conductive protrusion (902) slides along the second limiting groove (802) until it can no longer slide. The second insulating pad (10) is provided with a third limiting groove (1001) and a fourth protrusion (1002). The second insulating pad (10) is fitted onto the handle shaft (5). The tail and the fourth boss (1002) slide in along the first limiting groove (509) until the left end face (1003) of the second insulating pad coincides with the right end face (804) of the first insulating pad. The second conductive ring (11) is fitted on the second insulating pad (10) and the second conductive boss (1102) slides in along the third limiting groove (1001) until it can no longer slide. The insulating sleeve (12) is evenly provided with three first mounting through holes (1201) and a ninth boss (1202) in the circumferential direction. The handle shaft (5) is evenly provided with three first screw holes (518) on the circumference. The three fourth mounting screws (34) pass through the three first mounting through holes (1201) respectively to fix the insulating sleeve (12) and the handle shaft (5) in a fixed connection. The first conductive screw (901) on the first conductive ring (9) connects the positive terminal of the motor in the first lock core assembly (17) to the first conductive boss (902) via a wire. The first conductive boss (902) is provided with a first conductive screw hole (903). The first conductive screw (901) passes through the first conductive screw hole (903) to fix the wire to the first conductive boss (902). The second conductive screw (1101) on the second conductive ring (11) connects the positive terminal of the motor in the second lock core assembly (18) to the second conductive boss (1102) via a wire. The second conductive boss (1102) is provided with a second conductive screw hole (1103). The second conductive screw (1101) passes through the second conductive screw hole (1103) to fix the wire to the second conductive boss (1102).

6. The intelligent cylindrical lock with parallel double lock cylinders according to claim 5, characterized in that: The head of the drive shaft (25) is sleeved on the first steel ball shaft (1703) of the first lock cylinder assembly (17) and the second steel ball shaft (1803) of the second lock cylinder assembly (18). The drive shaft (25) is provided with a fifth boss (2502) in the circumferential direction. The left end face (2503) of the fifth boss (2502) is in close contact with the first right end face (519) of the handle shaft (5). The tail of the drive shaft (25) is provided with a square shaft (2504) with a square cross-section and a machining... A threaded shaft (2505) and a square shaft (2504) are exposed at the tail of the main lock body (19). The limiting block (27) is provided with a first square inner hole (2701), a sixth boss (2702) is provided on the left end face, and a seventh boss (2703) with a square cross-section is provided on the right end face. The limiting block (27) is fitted onto the square shaft (2504) at the tail of the transmission shaft (25) and is in close contact with the round end face (2506) at the tail of the transmission shaft. The drive shaft (25) is also fitted with a magnet mounting assembly (28). The drive shaft (25) is fixedly connected to the limiting block (27), the magnet mounting assembly (28) and the locking tongue (29) in sequence and can rotate 90° at the same time. The magnet mounting plate (2801) in the magnet mounting assembly (28) is provided with a second square inner hole (2802) with a square cross section. The second square inner hole (2802) is fitted onto the seventh boss (2703) on the right side of the limiting block (27). A rectangular magnet (2803) is fixedly connected to the magnet mounting plate (2801) by screws. The third-shaped inner hole (2901) on the latch (29) is fitted onto the square shaft (2504) at the tail of the drive shaft (25), and the left end face of the latch (29) is in close contact with the right end face of the seventh boss (2703). The first double round nut (30) is threadedly connected to the threaded shaft (2505) at the tail of the drive shaft (25) and is in close contact with the right end face of the latch (29).

7. A smart cylindrical lock with parallel double lock cylinders according to claim 6, characterized in that: The main lock body (19) has a first cavity (1901), a second cavity (1902), a third cavity (1903), and a fourth cavity (1904) arranged from left to right. The inner diameter of the four cavities decreases from left to right. The first cavity (1901) is fitted onto the handle fixing plate (7), and the depth of the first cavity (1901) is the same as the thickness of the handle fixing plate (7). The handle shaft (5) can rotate circumferentially through the snap ring (6) and is axially limited on the handle fixing plate (7). The handle shaft (5) is circumferentially provided with... The snap ring groove (520) and snap ring (6) are located in the second cavity (1902) and snap ring groove (520). The right end of the handle shaft (5) and the first insulating pad (8), first conductive ring (9), second insulating pad (10), second conductive ring (11) and insulating sleeve (12) are located in the third cavity (1903). The middle section (2507) of the drive shaft (25) is located in the fourth cavity (1904). The handle shaft (5) and drive shaft (25) can both rotate circumferentially inside the main lock body (19). The handle fixing plate (7) has a third groove (701) and a fourth groove (702) on the left side. The diameter of the third groove (701) is larger than that of the fourth groove (702). Six first studs (703) are evenly arranged on the right end face of the handle fixing plate (7), and a third water passage groove (704) is arranged on the radial circumference. The inner end face of the first cavity (1901) of the main lock body (19) is provided with six circumferentially evenly distributed first stud holes (1905). The six first studs (703) on the right end of the handle fixing plate (7) are passed through the first stud holes (1905), and six third mounting screws (20) are screwed in from the first stud holes (1905) on the right end of the first cavity (1901) of the main lock body (19) to the left, so as to achieve a fixed connection between the handle fixing plate (7) and the main lock body (19). The main lock body (19) is provided with a first cylindrical section (1906), a second cylindrical section (1907) and a threaded section (1908) from left to right, with the diameter decreasing from left to right. The rightmost end face of the threaded section (1908) is provided with a fifth groove (1911) with an included angle of 90°. The main lock body (19) is fitted inside the tower door (22). During installation, the first cylindrical section (1906) is located outside the tower door (22) and the right end face (1913) of the first cylindrical section is close to the outside of the tower door (22). The second cylindrical section (1907) is provided with two first planes (1909) that are symmetrical from left to right. The second cylindrical section (1907) is provided with a first mounting groove (1912) and a first wire groove (1914) below the second cylindrical section (1907).

8. A smart cylindrical lock with parallel double lock cylinders according to claim 7, characterized in that: The main lock body (19) is also fitted with a stop sleeve (23). The stop sleeve (23) is provided with a fifth cavity (2301) and a sixth cavity (2302). The inner side of the fifth cavity (2301) is provided with two symmetrical third planes (2303). The outer side of the fifth cavity (2301) is provided with an eighth boss (2304) and a second wire groove (2305). The fifth cavity (2301) is fitted onto the second cylindrical section (1907) of the main lock body (19), and the two third planes (2303) in the fifth cavity (2301) are parallel to the two first planes (1909) on the second cylindrical section (1907). During installation, the fifth cavity... The left end face (2306) is in close contact with the inner side of the tower door (22) and the eighth boss (2304) is embedded in the groove on the inner side of the tower door (22). The sixth cavity (2302) is sleeved on the threaded section (1908) of the main lock body (19). The threaded section (1908) is externally connected to two second double round nuts (26). By tightening the second double round nuts (26), the entire lock body is fixed on the tower door (22). A door magnetic switch is provided at the installation position of the tower door (22). The door magnetic switch is electrically connected to the remote controller. The fifth groove (1911) at the right end of the threaded section (1908) is embedded with a sixth boss (2702) that makes the limit block (27) rotate 90°. The first through hole (1916), the second through hole (1917) and two third screw holes (1918) are provided on the inner plane of the first mounting groove (1912) below the second cylindrical section (1907) of the main lock body (19). The ejector pin circuit assembly (21) includes a first ejector pin (2101), a second ejector pin (2102), an ejector pin circuit board (2103), and an eighth mounting screw (2104). The ejector pin circuit assembly (21) is fixed on the plane of the first mounting groove (1912) by two eighth mounting screws (2104). The ejector pin circuit board (2103) is provided with a first conductor pad (210301), a second conductor pad (210302), a first ejector pin pad (210303), and a second ejector pin pad (210304). The first ejector pin (2101) and the second ejector pin (2102) pass through and are soldered to the first ejector pin pad (210303) and the second ejector pin pad (210304), respectively. The first ejector pin pad (210303) and the first conductor pad (210301) are connected. Electrical connection: the second pin pad (210304) is electrically connected to the second wire pad (210302). The first pin (2101) and the second pin (2102) pass through the first through hole (1916) and the second through hole (1917) located on the plane of the first mounting groove (1912), respectively. The first pin head (210101) of the first pin (2101) and the second pin head (210201) of the second pin (2102) make elastic electrical contact with the first conductive ring (9) and the second conductive ring (11), respectively. The first wire pad (210301) and the second wire pad (210302) are respectively welded with two wires, which are respectively connected to the remote controller to realize the positive circuit connection between the first lock core assembly (17) and the second lock core assembly (18) and the remote controller.

9. A smart cylindrical lock with parallel double lock cylinders according to claim 8, characterized in that: It also includes a Hall circuit assembly (24), which includes a Hall sensor (2401), a Hall circuit board (2403), a Hall mounting base (2404), and a wire clamp (2406). The Hall sensor (2401) is soldered onto the Hall circuit board (2403), and the Hall circuit board (2403) is fixed onto the Hall mounting base (2404) by a fifth mounting screw (2402). The wire clamp (2406) is fixed onto the Hall mounting base (2404) by a sixth mounting screw (2405). The Hall circuit board (2403) is provided with a third wire pad (240301), a fourth wire pad (240302), and a fifth wire pad (240303). The three wire pads are electrically connected to the three pins of the Hall sensor (2401), and three wires are soldered to the three wire pads respectively. These wires are connected to the remote controller respectively. The right side of the threaded section (1908) at the tail of the main lock body (19) is provided with two symmetrical second planes (1910), wherein the upper plane is provided with two second screw holes (1915). The Hall circuit assembly (24) is fixed on the second plane (1910) by passing the seventh mounting screw (2407) through the second screw holes (1915), and the Hall sensor (2401) is directly opposite the magnet (2803).

10. A method of using a smart cylindrical lock with parallel double lock cylinders, characterized in that: When the intelligent cylindrical lock with parallel double lock cylinders as described in claim 9 is installed in the required position, the first steel ball (1705) and the second steel ball (1805) of the first lock cylinder assembly (17) and the second lock cylinder assembly (18) are not stuck in the first slot (2501) in their respective steel ball through holes, and the handle shaft (5) and the transmission shaft (25) are in a separated state, that is, they are in an idle state. When unlocking with a Bluetooth key, the Bluetooth key must first be authorized. Then, the authorized Bluetooth key is inserted into the first lock cylinder head (1704) through the first keyhole (101) and the third keyhole (505) in sequence, or the Bluetooth key is inserted into the second lock cylinder head (1804) through the second keyhole (102) and the fourth keyhole (506) in sequence. An unlocking command is sent to the first lock cylinder assembly (17) or the second lock cylinder assembly (18). Upon receiving the command, the first lock cylinder assembly (17) or the second lock cylinder assembly (18) will... The motor starts to rotate, thereby pushing out the first steel ball (1705) or the second steel ball (1805) and locking it into the first slot (2501), realizing the engagement of the handle shaft (5) and the drive shaft (25). After hearing the unlocking prompt sound, rotating the gripper (510) will drive the lock tongue (29) to rotate to unlock. After unlocking, the first steel ball (1705) or the second steel ball (1805) will return to their respective steel ball through holes, and the handle shaft (5) and the drive shaft (25) will separate again and each will be in an idle state. When using remote unlocking, the smart terminal sends an unlocking command to the remote controller. The remote controller powers the first conductive ring (9) and the second conductive ring (11) through the pin circuit assembly (21). The first conductive ring (9) and the second conductive ring (11) transmit electrical signals to the first lock cylinder assembly (17) and the second lock cylinder assembly (18) respectively. After being powered on, the internal motors of the two sets of lock cylinder assemblies start to rotate, thereby pushing out the first steel ball (1705) and the second steel ball (1805) and locking them into the first slot (2501), realizing the engagement of the handle shaft (5) and the transmission shaft (25). After hearing the unlocking prompt sound, rotating the gripper (510) can drive the lock tongue (29) to rotate to unlock. Similarly, after unlocking, the first steel ball (1705) and the second steel ball (1805) both return to their respective steel ball through holes, the handle shaft (5) and the transmission shaft (25) separate, and each is in an idle state. When locking, after the tower door (22) touches the door magnetic switch, the door magnetic switch will send a status command to the remote controller. However, the remote controller does not detect the Hall sensor (2401) signal. At this time, the remote controller will power on the first lock cylinder assembly (17) and the second lock cylinder assembly (18). After hearing the locking prompt sound, the handle (510) is rotated in the opposite direction, which will drive the bolt (29) to rotate to the locking position. At this time, the Hall sensor (2401) will detect the magnet (2803) rotating with the bolt (29), and then send the detection status to the remote controller. After receiving the door magnetic signal and the Hall sensor (2401) signal, the controller will de-energize the two sets of lock cylinder assemblies, and the handle shaft (5) will be separated from the transmission shaft (25) again, and the locking will be successful. The pin circuit assembly (21), the Hall circuit assembly (24), and the door magnetic switch are all connected to the remote controller by wires. After the remote controller issues a command, it reaches the first lock cylinder assembly (17) and the second lock cylinder assembly (18) through the pin circuit assembly (21). After hearing the unlocking prompt, the three grips (510) on the handle shaft (5) are turned to open and close the lock. The position of the bolt (29) and the status of the tower door (22) are determined by detecting the status of the Hall sensor (2401) and the door magnetic switch, so as to realize the door lock status monitoring.

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