A double-cylinder intelligent RV lock

Abstract

The invention discloses a double-lock cylinder intelligent RV lock, comprising a panel, a fixed cover, a back plate, a switch locking structure and a safety locking structure; the panel and the fixed cover are buckled to form an installation chamber, and the back plate is connected to the fixed cover; the switch locking structure comprises a switch lock cylinder, an outer handle assembly, a switch lock tongue, an inner handle, a switch lock tongue unlocking knob and a switch knob linkage mechanism; the installation chamber is provided with a switch lock tongue installation slot, and the switch lock tongue is installed in the switch lock tongue installation slot; the switch lock tongue unlocking knob is movably installed on the back of the back plate, and is linked and connected with the switch knob linkage mechanism installed in the installation chamber, and the switch knob linkage mechanism comprises a switch lock cylinder connecting shaft, a connecting fork, and a stop buckle, one end of the switch lock cylinder connecting shaft is fixedly sleeved with the switch lock tongue unlocking knob, the connecting fork is fixedly sleeved on the switch lock cylinder connecting shaft, and the stop buckle is connected to the connecting fork. The intelligent lock has the characteristics of firm locking.

Description

Technical Field

[0001] The invention relates to the field of locks, and in particular to a double-lock-core intelligent RV lock. Background Art

[0002] RV travel is a popular way of travel nowadays and is very popular among travelers. Driving an RV around the world, you can enjoy the beautiful scenery of various places. Based on the above situation, it can be seen that RVs will travel in various road conditions, especially when the RV is driving on poor road conditions or mountainous terrain, the vehicle will suffer a greater degree of bumps. Therefore, when driving on the above terrain, the lock tongue in the RV lock will move due to vibration, and the lock tongue may fall off from the door frame buckle box, eventually causing the RV door to open automatically during driving, causing major driving hazards. Therefore, the lock tongue of the RV lock is easily moved by external force vibration, so the lock tongue structure of the RV lock must be ensured to be stable and firm when locked, and will not be disengaged due to vehicle driving vibration.

[0003] At the same time, with the popularization of electronic intelligence, smart RV locks are widely used. When users use smart RV locks, they do not need mechanical keys. They only need to enter passwords or fingerprints to open smart RV locks. While RV locks are electronically intelligent, the following problems also exist:

[0004] 1. The movement of the lock tongue in the smart RV lock is completely controlled by the motor. The motor receives instructions to drive the lock tongue to move, realizing the lock switch; the lock has a built-in linkage component, which connects the motor and the lock tongue, and transmits the torque of the motor to the lock tongue, thereby driving the lock tongue to move, realizing the lock switch. The existing electric lock has the following disadvantages: when the motor receives a signal to lock or unlock, the motor starts to drive the lock tongue to move. When the lock tongue is fully extended or fully retracted, the motor is powered off. Affected by inertia, the motor output shaft will still rotate a certain angle at this time, but due to the spatial structure of the lock, the lock tongue can no longer continue the previous movement state, that is, the route for the lock tongue to continue to extend is blocked or the route for it to continue to retract is blocked. At this time, the load on the motor output shaft transmitted by the lock tongue is too large, and the motor cannot rotate. It can only be converted into heat energy inside the motor, and the motor is eventually overheated and damaged.

[0005] 2. The operation of the motor and other electrical components of the smart RV lock requires electricity. Smart RV lock manufacturers generally use built-in batteries in the lock and use the battery as the only power supply for the lock. This type of smart RV lock has good versatility and is not limited by the RV structure and RV circuit. However, once the battery is out of power, the lock cannot be opened using electricity. In an emergency, insufficient battery power is very dangerous.

[0006] In view of the above problems, the present invention designs a double-lock-cylinder smart RV lock, and this case is thus generated. Summary of the invention

[0007] The present invention provides a dual-cylinder smart RV lock, which has the characteristics of firm locking; specifically, the present invention is implemented through the following technical solutions:

[0008] A double-lock-core intelligent RV lock comprises a panel, a fixed cover shell, a back plate, a switch locking structure and a safety locking structure; the panel and the fixed cover shell are buckled together to form an installation chamber, and the back plate is connected to the fixed cover shell; the switch locking structure comprises a switch lock core, an outer handle assembly, a switch lock tongue, an inner handle, a switch lock tongue unlocking knob and a switch knob linkage mechanism; the installation chamber is provided with a switch lock tongue installation slot, and the switch lock tongue is installed in the switch lock tongue installation slot; the switch lock tongue unlocking knob is movably installed on the back side of the back plate, and is linked and connected with the switch knob linkage mechanism installed in the installation chamber, and the switch knob linkage mechanism comprises a switch lock core connecting shaft, a connecting fork and a stop buckle, one end of the switch lock core connecting shaft is fixedly sleeved with the switch lock tongue unlocking knob, the connecting fork is fixedly sleeved on the switch lock core connecting shaft, and the stop buckle is connected to the connecting fork; the stop buckle dynamically cooperates with the switch lock tongue installation slot.

[0009] The switch lock tongue is driven to move by turning the switch lock tongue unlocking knob. When the switch lock tongue extends into the buckle box on the door frame, there is a vacant space in the switch lock tongue installation slot due to the extension of the switch lock tongue. At this time, the stop buckle can be rotated into the vacant space to limit the movement of the switch lock. Even if the switch lock tongue is impacted by external force, the lock tongue will not retract from the buckle box, ensuring that the switch lock tongue is always in a locked state.

[0010] When the locking buckle is rotated out from the free position, the switch lock tongue can move freely in the installation groove.

[0011] Furthermore, the outer handle assembly is hinged on the front side of the panel, and the paddle on the outer handle assembly passes through the panel and is assembled in the groove inside the switch lock tongue; the switch lock core is fixedly installed in the lock core assembly position in the outer handle assembly, and a switch lock core matching hole is opened on the panel.

[0012] When the switch lock core falls into the lock core assembly position in the outer handle assembly and is locked, the outer handle assembly is fixed to the panel, and the outer handle assembly cannot rotate to toggle the switch lock tongue; when the switch lock core and the lock core assembly position in the outer handle assembly are unlocked, the outer handle assembly is movably connected to the panel, and the outer handle assembly can rotate to toggle the switch lock tongue;

[0013] Furthermore, the inner handle is hinged on the back side of the back plate, and the paddle on the inner handle passes through the back plate and the fixed cover shell and is assembled in the groove inside the switch lock tongue.

[0014] The movement of the unlocking bolt is controlled by turning the inner handle.

[0015] Furthermore, the safety locking structure includes a safety lock core, a safety lock tongue, a safety lock tongue unlocking knob, and a safety knob linkage mechanism; the installation chamber is provided with a safety lock tongue installation slot, and the safety lock tongue is installed in the safety lock tongue installation slot; the safety knob linkage mechanism is installed in the installation chamber and is linked to the safety lock tongue, the safety lock core is assembled in the lock core assembly hole of the panel, and the safety lock core passes through the panel and is linked to the safety knob linkage mechanism; the safety lock tongue unlocking knob is installed on the back side of the back plate, and is linked to the safety knob linkage mechanism to drive the safety lock tongue to move.

[0016] Furthermore, the safety knob linkage mechanism includes a safety lock core connecting shaft, a connecting sleeve and a connecting rod; one end of the safety lock core connecting shaft passes through the panel and is connected to the safety lock core, the other end of the safety lock core connecting shaft passes through the fixed cover and the back plate and is fixedly sleeved with the safety lock tongue unlocking knob, the connecting sleeve fixed sleeve is arranged on the safety lock core connecting shaft, one end of the connecting rod is connected to the connecting sleeve, and the other end of the connecting rod is connected to the safety lock tongue.

[0017] The safety lock core or the safety lock tongue unlocking knob rotates the safety lock core connecting shaft, which further drives the connecting sleeve and the connecting rod to rotate in turn, and finally the electric safety lock tongue moves linearly through the connecting rod.

[0018] The safety locking structure also includes an electronic locking device, which is linked to the safety knob linkage mechanism; the electronic locking device includes a motor, a worm, a worm wheel, a gasket, a spring, a circuit board and an operation panel, the worm is used to be linked to the motor shaft and mesh with the worm wheel; along the axial direction of the safety lock core connecting shaft, the worm wheel, the gasket, the spring and the connecting sleeve are axially fixed on the safety lock core connecting shaft in sequence; the connecting sleeve is circumferentially fixed to the safety lock core connecting shaft; the connecting rod is connected to the connecting sleeve.

[0019] The motor rotates to drive the worm, worm wheel, spring, connecting sleeve, and connecting rod to rotate, and finally drives the safety lock tongue to move. Since the worm wheel and the connecting shaft of the safety lock core are not fixed on the circumference, the worm wheel can rotate around the connecting shaft of the safety lock core. When the safety lock tongue is fully extended or retracted, the safety lock tongue cannot move, and the motor continues to rotate due to inertia, driving the worm wheel and gasket to rotate around the connecting shaft. The rotation of the gasket causes the spring to deform, and the connecting sleeve remains stationary. The energy output by the motor continues to rotate and is eventually output in the form of spring deformation, so the motor can continue to rotate without burning out. The spring is used to transfer the torque of the motor to the connecting sleeve. When the connecting sleeve cannot rotate, the kinetic energy of the motor can be converted into elastic potential energy to prevent the motor from burning out.

[0020] Under normal motion state, when the load torque is less than the maximum driving torque, the worm gear drives the connecting sleeve to rotate through static friction, the worm gear and the connecting sleeve remain relatively still, the two move synchronously, and then converted into linear motion of the lock tongue.

[0021] Furthermore, a retaining spring is sleeved on the connecting shaft of the safety lock core to axially fix the worm gear, gasket, spring and connecting rotating sleeve.

[0022] The setting of the retaining spring can facilitate the disassembly and assembly of parts on the connecting shaft.

[0023] A circle of groove is arranged on one end surface of the connecting rotating sleeve, and the spring is assembled in the groove, and one end of the spring contacts the bottom of the groove.

[0024] The operation panel is installed on the front of the panel, and the operation panel is connected to the motor through the circuit board. The lock control command is input through the operation panel to drive the internal motor of the lock to run, thereby completing the movement of the lock tongue.

[0025] A battery compartment is provided on the back plate for placing batteries; two openings are opened on the fixed cover shell, and a battery power supply interface and a vehicle power supply interface are installed in the two openings respectively, and the two interfaces are connected to the circuit board respectively.

[0026] If a battery is used as the power source, a flat cable is used to connect the battery compartment and the battery power supply interface on the back panel; if a vehicle power supply is used as the power source, a flat cable is used to connect the vehicle power supply interface to the vehicle power supply.

[0027] It adopts dual-mode power supply. When the battery is out of power, it can switch to the vehicle power supply mode; or it can directly use the vehicle power supply mode; the dual power supply mode ensures the versatility of the lock, and also provides users with a variety of choices and a good user experience; further, the dual-mode setting also eliminates the worry of being unable to open the car door in an emergency situation due to battery power shortage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional diagram of an embodiment of a dual-lock cylinder intelligent RV lock provided by the present invention;

[0029] Figure 2 A front view of an embodiment of a dual-cylinder smart RV lock provided by the present invention;

[0030] Figure 3 for Figure 2 AA section view;

[0031] Figure 4 for Figure 2 CC section view;

[0032] Figure 5 for Figure 4 BB section view;

[0033] Figure 6 for Figure 2 DD section view;

[0034] Figure 7 for Figure 2 EE section view;

[0035] Figure 8 A rear view of an embodiment of a dual-cylinder smart RV lock provided by the present invention;

[0036] Fig. 9 An exploded view of an embodiment of a dual-cylinder smart RV lock provided by the present invention;

[0037] Fig.10 An exploded view of an embodiment of a dual-cylinder smart RV lock provided by the present invention;

[0038] Fig.11 An exploded view of an embodiment of a dual-cylinder smart RV lock provided by the present invention;

[0039] Fig.12 A left view of an embodiment of a dual-cylinder smart RV lock provided by the present invention;

[0040] Fig.13 A view of a double-cylinder smart RV lock embodiment provided by the present invention with the stop buckle not locking the switch lock tongue;

[0041] Fig.14 A view of a stop buckle locking switch tongue of a dual-lock cylinder smart RV lock embodiment provided by the present invention;

[0042] Fig.15 for Figure 7 A partial enlarged view of .

[0043] Among them: 1. Panel; 11. Switch lock tongue installation slot; 111. Free space; 12. Safety lock tongue installation slot; 2. Fixed cover; 3. Back plate; 31. Battery compartment; 4. Switch locking structure; 41. Switch lock cylinder; 42. External handle assembly; 421. Paddle on external handle assembly; 43. Switch lock tongue; 431. Groove inside the switch lock tongue; 432. Groove inside the switch lock tongue; 44. Internal handle; 45. Switch lock tongue unlocking knob; 46. Switch knob linkage mechanism; 461. Switch lock cylinder connecting shaft; 462. Connecting Fork; 463. Stop buckle; 5. Safety locking structure; 51. Safety lock cylinder; 52. Safety lock tongue; 53. Safety lock tongue unlocking knob; 54. Safety knob linkage mechanism; 541. Safety lock cylinder connecting shaft; 542. Connecting sleeve; 5421. Groove; 543. Connecting rod; 55. Electronic locking device; 551. Motor; 552. Worm; 553. Worm wheel; 5541. Battery power supply interface; 5542. Vehicle power supply interface; 555. Operation panel; 556. Retaining spring; 557. Spring; 558. Gasket. DETAILED DESCRIPTION

[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] like Figure 1 As shown, a double-cylinder smart RV lock includes a panel 1, a fixed cover shell 2, a back plate 3, a switch locking structure 4 and a safety locking structure 5; the panel 1 and the fixed cover shell 2 are buckled together to form an installation chamber, and the back plate 3 is connected to the fixed cover shell 2, so from the front to the back of the lock are the panel 1, the fixed cover shell 2 and the back plate 3 in sequence, and the switch locking structure 4 and the safety locking structure 5 are installed in the installation chamber, on the panel 1 and the back plate 3.

[0046] 1. Switch locking structure 4.

[0047] like Fig. 9 , Fig.13 As shown, the switch locking structure 4 includes a switch lock cylinder 41, an outer handle assembly 42, a switch lock tongue 43, an inner handle 44, a switch lock tongue unlocking knob 45 and a switch knob linkage mechanism 46; a switch lock tongue mounting slot 11 is provided on the back of the panel 1, the slot wall of the switch lock tongue mounting slot 11 is connected to the panel 1, the switch lock tongue 43 is installed in the switch lock tongue mounting slot 11, and can move linearly in the switch lock tongue mounting slot 11 to complete the state switching between locking and unlocking.

[0048] like Figure 6 , 9 As shown in Figures 1 and 13, the outer handle assembly 42 is hinged on the front of the panel 1, and the paddle 421 on the outer handle assembly passes through the panel 1 and is assembled in the groove 431 inside the switch lock tongue. As the outer handle assembly 42 rotates, the switch lock tongue 43 moves. The switch lock core 41 is fixedly installed in the outer handle assembly 42, and a switch lock core 41 matching hole is provided on the panel 1. By switching the matching state of the switch lock core 41 and the matching hole of the switch lock core 41, the fixed or movable connection state of the outer handle assembly 42 and the panel 1 is switched; when the switch lock core 41 falls into the matching hole of the switch lock core 41 of the panel 1 and is locked, the outer handle assembly 42 is fixed to the panel 1, and the outer handle assembly 42 cannot rotate to toggle the switch lock tongue 43; when the switch lock core 41 and the matching hole of the switch lock core 41 of the panel 1 are unlocked, the outer handle assembly 42 is movably connected to the panel 1, and the outer handle assembly 42 can rotate to toggle the switch lock tongue 43.

[0049] like Figure 4 , 14 As shown, the inner handle 44 is hinged on the back of the back plate 3. At the same time, the paddle on the inner handle passes through the back plate 3 and the fixed cover 2, and is assembled in the groove 432 inside the switch lock tongue. As the inner handle 44 rotates, the switch lock tongue 43 is moved to achieve the purpose of controlling the switch state of the switch lock tongue 43.

[0050] like Figure 3, 8 As shown in 13, the switch lock tongue unlocking knob 45 is movably mounted on the back of the back plate 3, and is linked to the switch knob linkage mechanism 46, through which the switch knob linkage mechanism 46 controls the locking or unlocking state of the switch lock tongue 43; Fig.14 As shown, when the switch lock tongue 43 is in the locked state, the switch lock tongue 43 cannot move linearly in the switch lock tongue installation slot 11; Fig.13 As shown, when the switch lock tongue 43 is in the unlocked state, the switch lock tongue 43 can freely move linearly in the switch lock tongue installation slot 11. Fig. 9 As shown, the switch knob linkage mechanism 46 includes a switch lock core connecting shaft 461, a connecting fork 462, and a stop buckle 463, wherein the switch lock core connecting shaft 461 is installed in the installation cavity, one end of the switch lock core connecting shaft 461 passes through the fixed cover 2 and the back plate 3 and is circumferentially fixed to the switch lock tongue unlocking knob 45, the connecting fork 462 is sleeved on the switch lock core connecting shaft 461 and is circumferentially fixed thereto, and the stop buckle 463 is connected to the connecting fork 462; as the switch lock tongue unlocking knob 45 rotates, the switch lock core connecting shaft 461 is driven to rotate, the switch lock core connecting shaft 461 rotates to drive the connecting fork 462 to rotate, and the connecting fork 462 rotates to drive the stop buckle 463 to rotate; the stop buckle 463 can be screwed into the switch lock tongue installation slot 11; as shown Fig.13 As shown, when the switch lock tongue 43 is extended, the part of the switch lock tongue installation slot 11 previously occupied by the switch lock tongue 43 becomes vacant, and the stop buckle 463 can be screwed into the vacant position 111; Fig.14 As shown, when the stop buckle 463 is screwed into the vacant position 111 of the switch lock tongue installation slot 11, the movable space of the switch lock tongue 43 is occupied and cannot be retracted and moved, and the switch lock tongue 43 is locked; Fig.13 As shown, when the stop buckle 463 is rotated out of the vacant position 111 of the switch lock tongue installation slot 11, the movement space of the switch lock tongue 43 is restored, and the switch lock tongue 43 can be retracted and moved, and the switch lock tongue 43 is unlocked.

[0051] The purpose of the circumferential fixation of the parts on the shaft is to transfer torque between the parts and the shaft, and to ensure that the parts and the shaft rotate synchronously. In design, methods such as keys and interference fits are often used for circumferential fixation.

[0052] like Fig.13 , Fig.14 As shown, a specific structure of a connecting fork 462 is as follows: two holes are provided on the connecting fork 462, which are an axial hole for assembling the switch lock cylinder connecting shaft 461 and a buckle hole for assembling the stop buckle 463.

[0053] The stop buckle 463 is also provided with an assembly hole for being hinged with the connecting fork 462, and the end of the stop buckle 463 is arc-shaped, which is tightly attached to the side wall of the track in the installation chamber. The side wall of the track can be formed by extending outward from the groove wall of the switch lock tongue installation slot 11; when the connecting fork 462 drives one end of the stop buckle 463 to rotate, the arc end of the stop buckle 463 will slide along the side wall of the track, leading the stop buckle 463 in and out of the switch lock tongue installation slot 11.

[0054] like Figure 3 , Figure 4 As shown, the switch lock core 41 can also control the switch lock core connecting shaft 461 to rotate. When the switch lock core 41 falls into the matching hole of the switch lock core 41 in the panel 1, the switch lock core 41 is linked to the other end of the switch lock core connecting shaft 461, and the switch lock core 41 rotates, driving the switch lock core connecting shaft 461 to rotate.

[0055] 2. Safety locking structure 5.

[0056] like Fig. 9 , Fig.10 As shown, the safety locking structure 5 includes a safety lock core 51 , a safety lock tongue 52 , a safety lock tongue unlocking knob 53 , and a safety knob linkage mechanism 54 .

[0057] The safety lock tongue 52 is installed in the installation cavity. A safety lock tongue installation slot is provided on the back of the panel 1. The safety lock tongue 52 is installed in the safety lock tongue installation slot and can move linearly in the safety lock tongue 52 installation slot to complete the state switching between locking and unlocking.

[0058] like Figure 7 As shown, the safety lock core 51 is assembled in the lock core assembly hole of the panel 1, and its lock hole is on the front side of the panel 1. The safety lock core 51 passes through the panel 1 and is linked to the safety knob linkage mechanism 54. The safety knob linkage mechanism 54 is connected to the safety lock tongue 52 to drive the safety lock tongue 52 to move; when the safety lock core 51 rotates forward, the safety lock tongue 52 is driven to extend, so that the safety lock tongue 52 is in a locked state; when the safety lock core 51 rotates reversely, the safety lock tongue 52 is driven to retract, so that the safety lock tongue 52 is in an unlocked state.

[0059] The safety lock tongue unlocking knob 53 is installed on the back side of the back plate 3 and is linked with the safety knob linkage mechanism 54 to drive the safety lock tongue 52 to move.

[0060] like Figure 7 , 13As shown in FIGS. 14 and 15, the safety knob linkage mechanism 54 is installed in the installation cavity, and the safety knob linkage mechanism 54 includes a safety lock core connecting shaft 541, a connecting sleeve 542, and a connecting rod 543. The safety lock core connecting shaft 541 is assembled in the installation hole of the installation cavity, and one end of the safety lock core connecting shaft 541 passes through the panel 1 to connect with the safety lock core 51, and the other end of the safety lock core connecting shaft 541 passes through the fixed cover 2 and the back plate 3 to be fixedly sleeved with the safety lock tongue unlocking knob 53, and the connecting sleeve 542 is circumferentially fixed to the safety lock core connecting shaft 541. An axial hole is provided inside the connecting sleeve 542 for assembling the safety lock core connecting shaft 541, and a rod hole is also provided inside the connecting sleeve 542 for assembling the connecting rod 543. The end of the connecting rod 543 is bent to form a hook, which is assembled in the rod hole of the connecting sleeve 542. At the same time, the end of the other end of the connecting rod 543 is bent to form a hook, which is connected and assembled with the hole on the safety lock tongue 52. With the rotation of the safety lock tongue unlocking knob 53 or the safety lock core 51, the safety lock core connecting shaft 541 is driven to rotate, the connecting sleeve 542 is driven to rotate, the connecting rod 543 is driven to rotate, and the safety lock tongue 52 is driven to move.

[0061] The purpose of the circumferential fixation of the parts on the shaft is to transfer torque between the parts and the shaft, and to ensure that the parts and the shaft rotate synchronously. In design, methods such as keys and interference fits are often used for circumferential fixation.

[0062] The circumferential fixing method of the connecting sleeve 542 and the safety lock core connecting shaft 541 can be selected as flat position fixing.

[0063] The flat position is fixed, that is, one or more planes are set on the outer circumference of the safety lock core connecting shaft 541, and one or more planes are set on the inner circumference of the internal shaft hole of the connecting sleeve 542. The connecting sleeve 542 is sleeved on the safety lock core connecting shaft 541 through the shaft hole, and the plane of the shaft hole corresponds to the plane of the outer surface of the safety lock core connecting shaft 541 one by one, so that the connecting sleeve 542 is fixed on the circumference of the safety lock core connecting shaft 541, and the two will not rotate relative to each other.

[0064] like Figure 7 , 9, 15, the safety locking structure 5 also includes an electronic locking device 55, which further controls the switch state of the safety lock tongue 52 by controlling the rotation state of the safety knob linkage mechanism 54; the electronic locking device 55 includes a motor 551, a worm 552, a worm wheel 553, a spring 557, a gasket 558, a circuit board and an operation panel 555, the motor 551, the worm 552, the worm wheel 553, the spring 557, the gasket 558, and the circuit board are installed in the installation cavity, the worm 552 is linked to the output shaft of the motor 551, the worm wheel 553, The spring 557 and the gasket 558 are sleeved on the safety lock core connecting shaft 541. At this time, along the axial direction of the safety lock core connecting shaft 541, the safety lock core connecting shaft 541 is tightly sleeved with a retaining spring 556, a connecting sleeve 542, a gasket 558, a spring 557 and a worm gear 553 in sequence. The end faces of the two are in contact with each other, and the retaining spring 556 serves to axially fix the connecting sleeve 542, the gasket 558 and the worm gear 553; at the same time, the worm gear 553 is meshed with the worm 552. The operation panel 555 is installed on the front of the panel 1, and it is connected to the motor 551 through the circuit board. The switch lock command is input through the operation panel 555, and the command is transmitted to the circuit board, and the circuit board controls the movement state of the motor 551.

[0065] The axial fixation of the parts on the shaft is to ensure that the parts have a certain axial position on the shaft, prevent the parts from moving axially, and can withstand axial forces.

[0066] A circle of groove 5421 is provided on one end surface of the connecting sleeve 542. When the connecting sleeve 542 is assembled on the outside of the safety lock core connecting shaft 541, the opening of the groove 5421 faces the worm gear 553. A spring 557 is sleeved in the annular groove 5421. One end of the spring 557 contacts the bottom of the groove 5421, and the other end of the spring 557 contacts the worm gear 553. The spring 557 is in a compressed state, and the torque of the worm gear 553 is transmitted to the connecting sleeve 542 through the spring 557.

[0067] When the safety lock tongue 52 is not restricted by the lock structure, that is, the travel route of the safety lock tongue 52 is not blocked, the linkage relationship between the motor 551 and the safety lock tongue 52 is as follows:

[0068] The motor 551 receives a lock or unlock signal, the worm gear 553 drives the gasket 558 through static friction, the gasket 558 drives the spring 557 to rotate through static friction, the spring 557 drives the connecting sleeve 542 to rotate, and the connecting sleeve 542 drives the safety lock tongue 52 to move linearly; at this time, the five components of the worm gear 553, the gasket 558, the spring 557, the connecting sleeve 542, and the safety lock core connecting shaft 541 keep rotating synchronously, and the energy output by the motor 551 is finally output in the form of linear motion of the safety lock tongue 52.

[0069] When the safety lock tongue 52 is fully extended or fully retracted, the motor 551 is powered off. Under the influence of inertia, the output shaft of the motor 551 will still rotate to a certain angle. However, due to the spatial structure of the lock, the safety lock tongue 52 can no longer continue the previous motion state, that is, the route for the safety lock tongue 52 to continue to extend is blocked or the route for continuing to retract is blocked. In the connecting sleeve 542, the torque transmitted by the spring 557 to the connecting sleeve 542 is less than the load torque of the safety lock tongue 52, and the linkage relationship between the motor 551 and the safety lock tongue 52 is as follows:

[0070] Since the worm wheel 553 and the safety lock cylinder connecting shaft 541 are not fixed on the circumference, the worm wheel 553 can rotate around the safety lock cylinder connecting shaft 541. At this time, the motor 551 rotates to drive the worm wheel 553 and the gasket 558 to rotate around the safety lock cylinder connecting shaft 541. The rotation of the gasket 558 drives the spring 557 to deform, and the connecting sleeve 542 remains stationary. The energy output by the motor 551 is finally output in the form of deformation of the spring 557, so the motor 551 can continue to rotate without being burned.

[0071] The power source of the electronic locking device 55 can be selected to be external power supply or internal battery power supply, and the specific structure is described as follows.

[0072] like Fig.11 As shown, a battery compartment 31 is provided on the back plate 3 for accommodating batteries.

[0073] Two openings are provided on the fixed cover 2, and a battery power supply interface 5541 and a vehicle power supply interface 5542 are installed in the two openings respectively, and the two interfaces are connected to the circuit board respectively. If a battery is used as the power source, a flat cable is used to connect the battery compartment 31 on the back plate 3 and the battery power supply interface 5541; if a vehicle power supply is used as the power source, the vehicle power supply interface 5542 is connected to the vehicle power supply through a flat cable.

[0074] The above are preferred implementations of the present invention. Several other simple substitutions and modifications made under the premise of the concept of the present invention should be regarded as belonging to the protection scope of the present invention.

Claims

1. A double-cylinder smart RV lock, Features: It includes a panel, a fixed cover, a back plate, a switch locking structure and a safety locking structure; the panel and the fixed cover are buckled to form an installation chamber, and the back plate is connected to the fixed cover; the switch locking structure includes a switch lock cylinder, an outer handle assembly, a switch lock tongue, an inner handle, a switch lock tongue unlocking knob and a switch knob linkage mechanism; the installation chamber is provided with a switch lock tongue installation slot, and the switch lock tongue is installed in the switch lock tongue installation slot; the switch lock tongue unlocking knob is movably installed on the back of the back plate, and is linked to the switch knob linkage mechanism installed in the installation chamber, and the switch knob linkage mechanism includes a switch lock cylinder connecting shaft, a connecting fork, and a stop buckle. One end of the switch lock core connecting shaft is fixedly sleeved with the switch lock tongue unlocking knob, the connecting fork is fixedly sleeved on the switch lock core connecting shaft, the stop buckle is connected to the connecting fork, and the stop buckle dynamically cooperates with the switch lock tongue mounting groove; the safety knob linkage mechanism includes a safety lock core connecting shaft, a connecting rotating sleeve and a connecting rod; one end of the safety lock core connecting shaft passes through the panel and is connected to the safety lock core, the other end of the safety lock core connecting shaft passes through the fixed cover shell and the back plate and is fixedly sleeved with the safety lock tongue unlocking knob, the connecting rotating sleeve is fixedly sleeved on the safety lock core connecting shaft, one end of the connecting rod is connected to the connecting rotating sleeve, and the other end of the connecting rod is connected to the safety lock tongue.

2. A dual-cylinder smart RV lock according to claim 1, Features: The outer handle assembly is hinged on the front side of the panel, and the paddle on the outer handle assembly passes through the panel and is assembled in the groove inside the switch lock tongue; the switch lock cylinder is fixedly installed in the lock cylinder assembly position in the outer handle assembly, and a switch lock cylinder matching hole is opened on the panel; the inner handle is hinged on the back side of the back plate, and the paddle on the inner handle passes through the back plate and the fixed cover shell and is assembled in the groove inside the switch lock tongue.

3. A dual-cylinder smart RV lock according to claim 1, Features: When the switch lock core falls into the switch lock core matching hole of the panel, the switch lock core is linked to the other end of the switch lock core connecting shaft, and the switch lock core connecting shaft is driven to rotate as the switch lock core rotates.

4. A dual-cylinder smart RV lock according to claim 1, Features: The safety locking structure includes a safety lock core, a safety lock tongue, a safety lock tongue unlocking knob, and a safety knob linkage mechanism; the installation chamber is provided with a safety lock tongue installation slot, and the safety lock tongue is installed in the safety lock tongue installation slot; the safety knob linkage mechanism is installed in the installation chamber and is linked to the safety lock tongue, the safety lock core is assembled in the lock core assembly hole of the panel, and the safety lock core passes through the panel and is linked to the safety knob linkage mechanism; the safety lock tongue unlocking knob is installed on the back side of the back plate, and is linked to the safety knob linkage mechanism to drive the safety lock tongue to move.

5. A dual-cylinder smart RV lock according to claim 1, Features: The safety locking structure also includes an electronic locking device, which is linked to the safety knob linkage mechanism; the electronic locking device includes a motor, a worm, a worm wheel, a gasket, a spring, a circuit board and an operation panel, the worm is used to be linked to the motor shaft and mesh with the worm wheel; along the axial direction of the safety lock core connecting shaft, the worm wheel, the gasket, the spring and the connecting sleeve are axially fixed on the safety lock core connecting shaft in sequence; the connecting sleeve is circumferentially fixed to the safety lock core connecting shaft.

6. A dual-cylinder smart RV lock according to claim 5, Features: A retaining spring is sleeved on the connecting shaft of the safety lock core to axially fix the worm wheel, the gasket, the spring and the connecting rotating sleeve.

7. A dual-cylinder smart RV lock according to claim 5, Features: A circle of groove is arranged on one end surface of the connecting rotating sleeve, and the spring is assembled in the groove, and one end of the spring contacts the bottom of the groove.

8. The dual-cylinder smart RV lock according to claim 5, Features: The operation panel is installed on the front side of the panel, and the operation panel is connected with the motor through a circuit board.

9. A dual-cylinder smart RV lock according to any one of claims 5 to 8, Features: A battery compartment is provided on the back plate for placing batteries; two openings are opened on the fixed cover shell, and a battery power supply interface and a vehicle power supply interface are installed in the two openings respectively, and the two interfaces are connected to the circuit board respectively.

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