Single-tongue lock structure and motor home lock

Abstract

The invention relates to the technical field of locks for vehicles, in particular to a single-bolt lock structure and a motor home lock, the single-bolt lock structure comprises a lock body, the lock body is provided with a bolt and a locking spring, the locking spring drives the bolt to be inserted into a bolt groove of a door frame, and locking operation of a door is achieved; the lock body is rotationally connected with a door opening handle, the door opening handle drives the spring bolt to be separated from the door frame bolt groove, and opening operation of a door is achieved. The lock body is further provided with a counter locking mechanism, the counter locking mechanism conducts limiting and locking operation on the spring bolt, and therefore the spring bolt is limited to move towards the interior of the lock body, and counter locking operation on the lock body is achieved. Finally, the problems that a traditional lock is complex in structure, large in occupied space, low in response speed and the like are solved by canceling the design of a dead bolt and adopting the mode that a counter lock base and a locking rod are matched with an inclined bolt, and meanwhile, the safety, convenience and intelligence of the lock are further improved by introducing an electric unlocking mechanism and an electronic module; the device is especially suitable for multiple requirements of moving occasions such as motor homes.

Description

Technical Field

[0001] The present invention relates to the technical field of locks used for vehicles, and in particular to a single-tongue lock structure and a motorhome lock. Background Art

[0002] Traditional lock designs usually rely on the cooperation between the lock tongue and the door frame tongue groove to achieve door locking and opening. The lock tongue extends outward under the action of the locking spring and inserts into the door frame tongue groove to complete the locking operation; when opening, the lock tongue is driven back into the lock body by turning the door handle, so that the lock tongue is separated from the door frame tongue groove, thereby achieving door opening. In order to improve security, many locks also introduce anti-locking mechanisms, which limit the movement of the lock tongue by mechanical limit, ensuring that the lock tongue cannot be driven even if the door handle is turned in the anti-lock state, thereby enhancing the protection performance of the lock.

[0003] However, there are some significant problems with the anti-locking mechanism of traditional locks. First, the traditional anti-locking mechanism usually relies on a "dead tongue" design, which not only makes the lock structure complex, but also takes up a large space and has a slow response speed. In actual use, this design is prone to wear or jamming due to long-term use, affecting the reliability of the lock. In addition, in mobile situations such as vehicles, the direct connection between the lock tongue and the lock cylinder may cause the lock cylinder to be damaged by bumps or vibrations, further affecting the service life and safety of the lock.

[0004] For example, a Chinese patent document with the announcement number CN219241584U discloses a single-bolt lock body with an anti-locking function, including a lock shell, on which a lock tongue is slidably arranged through a lock rod, and the lock rod is sleeved with a locking spring for driving the lock tongue to extend out of the lock shell; an anti-locking member is slidably arranged up and down in the lock shell, and a driving member for driving the anti-locking member to slide upward is rotatably arranged on the lock shell near the upper end position of the anti-locking member; and an unlocking member and a lock core for driving the anti-locking member to slide up and down are arranged on the lock shell near the lower end position of the anti-locking member.

[0005] Although it is also a single-bolt structure, its anti-locking part is set on the side of the moving position of the lock rod. If it is installed in a vehicle, the bumpy vehicle will easily cause the anti-locking part and the lock rod to collide with each other and be damaged. In addition, its driving part and unlocking part have complex structures, and its service life is limited when used in a bumpy vehicle.

[0006] In summary, in order to improve the safety, reliability and ease of use of locks and meet the needs of different scenarios, such as use in special places such as RVs, it is necessary to improve and optimize the existing lock structure and unlocking methods. Summary of the invention

[0007] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0008] The present invention provides a single-tongue lock structure, comprising a lock body, a lock tongue and a locking spring arranged inside the lock body, the lock tongue being movably connected to the lock body, the two force-bearing ends of the locking spring respectively abutting against the lock body and the lock tongue, thereby driving the lock tongue to extend outwards by a certain length through a lock hole provided on one side of the lock body, and then inserting into a tongue groove of a door frame, thereby realizing a locking operation on the door; the lock body is also rotatably connected with a door opening handle, one end of the door opening handle is transmission-connected to the lock tongue, driving the lock tongue to move a certain distance into the lock body, and escape from the tongue groove of the door frame, thereby realizing an opening operation on the door; the lock body is also provided with an anti-locking mechanism, which is movably connected to the lock body and forms a limit locking operation on the lock tongue, thereby limiting the movement of the lock tongue into the lock body, thereby realizing an anti-locking operation on the lock body.

[0009] Furthermore: one end of the lock tongue is set as an oblique tongue end, which is used to extend out of the lock body and insert into the tongue groove of the door frame; the end of the other end is set as an anti-locking end, which is used to abut against the anti-locking mechanism; the anti-locking mechanism is provided with a locking rod, which can be detachably abutted against the anti-locking end, thereby forming a releasable locking operation on the lock tongue.

[0010] Furthermore: the anti-locking mechanism is provided with an anti-locking base, one end of the locking rod is fixedly connected to the anti-locking base, and the other end forms a free end; the anti-locking base is rotatably connected to the lock body, and rotates a certain angle under the drive of the unlocking device, so that the locking rod switches between the two states of abutting the lock tongue and disengaging from the lock tongue.

[0011] Furthermore: the side wall of the free end of the locking rod can be detachably abutted against the anti-locking end of the locking tongue.

[0012] Furthermore: the end of the free end of the locking rod can be detachably abutted against the anti-locking end of the lock tongue.

[0013] Furthermore: one end of the door handle forms the door handle for opening the door, and the other end is provided with an unlocking lever. One end of the unlocking lever is fixedly connected to the door handle, and the other end is transmission-connected to the lock tongue, and can drive the lock tongue to move a certain distance into the lock body, so that it can disengage from the tongue groove of the door frame to realize the opening operation of the door.

[0014] Furthermore: the unlocking device is also provided with an electric unlocking mechanism, which is provided with an unlocking motor and an unlocking gear set. One end of the unlocking gear set is transmission-connected to the output shaft of the unlocking motor, and the other end thereof is transmission-connected to the anti-locking base, which is used to drive the anti-locking base to drive the locking rod to abut against the lock tongue or disengage from the lock tongue.

[0015] Further: the unlocking gear set is provided with a sleeve gear and a jumping gear, the sleeve gear is transmission-connected to the output shaft of the unlocking motor, the jumping gear is transmission-connected to the anti-locking base, and the sleeve gear and the jumping gear cooperate with each other to form a detachable transmission connection.

[0016] Furthermore: an active end face tooth is arranged on one end of the shaft sleeve gear facing the beating gear, and a passive end face tooth is arranged on one end of the beating gear facing the shaft sleeve gear, and the active end face tooth and the passive end face tooth cooperate with each other to form a disengageable meshing connection.

[0017] A motorhome lock is also provided, comprising the above-mentioned single-tongue lock structure, and also comprising an electronic module for controlling an electric unlocking mechanism to perform unlocking or locking operations; the electronic module is provided with a battery module, a control module and a password button electrically connected to each other, the battery module is electrically connected to the unlocking motor of the electric unlocking mechanism, the control module is used to set and control the motorhome lock, and the password button is used to enter a password.

[0018] Compared with the prior art, the present invention has the following beneficial effects: By eliminating the traditional "dead tongue" design and adopting the method of anti-lock base and locking rod cooperating with the oblique tongue, the mechanical structure of the lock is optimized. The locking rod abuts against the end of the locking rod of the oblique tongue, thereby blocking the retraction path of the oblique tongue and realizing the anti-locking operation. When unlocking is required, it is only necessary to rotate the anti-lock base to make the locking rod release the lock on the oblique tongue, and then the door handle can be used to drive the lock tongue to retract the lock body to complete the door opening operation.

[0019] The locking rod limits the anti-locking end of the lock tongue, realizing the releasable locking operation of the lock tongue, which not only simplifies the structure but also improves the reliability and safety of the lock. At the same time, the separation design of the lock tongue and the lock core effectively avoids the risk of damage to the lock core due to the impact of the lock tongue during vehicle operation.

[0020] In addition, the present invention also introduces an electric unlocking mechanism and an electronic module, which drives the anti-locking base to rotate through the unlocking motor to realize the automatic unlocking and locking operation of the lock. The electronic module integrates the battery module, the control module and the password button. The user can control the opening and closing of the lock by entering the password, which further improves the intelligence and convenience of the lock. This design is particularly suitable for mobile occasions such as RVs, and can effectively meet the multiple needs of modern life for safety, convenience and durability.

[0021] In summary, the present invention solves the problems of complex structure, large space occupation, slow response speed, etc. of traditional locks by optimizing the mechanical structure of traditional locks, eliminating the deadbolt design, and adopting the method of anti-locking base and locking rod cooperating with oblique tongue. At the same time, through the introduction of electric unlocking mechanism and electronic module, the safety, convenience and intelligence of the lock are further improved. It is particularly suitable for mobile occasions such as RVs, and can effectively meet the multiple needs of modern life for safety, convenience and durability.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a schematic diagram of the structure of the electronic module and the inner knob of the present invention; Figure 2 It is a structural schematic diagram of the mechanical lock core and the password button of the present invention; Figure 3 It is a structural schematic diagram of the state in which the anti-locking end and the locking rod of the present invention abut against each other; Figure 4 It is a structural schematic diagram of the limiting side wall, the unlocking lever and the passive push block of the present invention; Figure 5 It is a structural schematic diagram of the lock tongue and the locking rod of the present invention being separated from each other; Figure 6 It is a structural schematic diagram of the door opening handle of the present invention driving the lock tongue to move into the door opening state; Figure 7 It is a structural schematic diagram of the arc groove and the arc portion of the present invention being separated from each other; Figure 8 is a schematic structural diagram of the unlocking gear set of the present invention; Fig. 9 It is a structural schematic diagram of the present invention in which the jumping gear and the sleeve gear are separated from each other; Fig.10 It is a schematic structural diagram of the remote controller of the present invention.

[0025] The reference numerals and names in the figures are as follows: 10 lock body; 11 limit side wall; 12 locking spring; 13 touch switch; 14 balance groove; 15 door handle; 16 unlocking lever; 17 inner knob; 18 mechanical lock cylinder; 20 lock tongue; 21 oblique tongue end; 22 anti-locking end; 23 passive push block; 24 avoidance groove; 25 arc groove; 30 anti-locking mechanism; 31 locking rod; 32 arc portion; 33 touch protrusion; 34 anti-locking base; 35 driven tooth; 40 electric unlocking mechanism; 41 unlocking motor; 50 unlocking gear set; 51 pressure spring; 52 sleeve gear; 53 active end face tooth; 54 center column; 55 jumping gear; 56 passive end face tooth; 57 active tooth; 58 balance column; 60 electronic module; 61 battery module; 62 charging interface; 63 control module; 64 shortcut key; 65 password key. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figures 1 to 9 In the embodiment of the present invention, a single-tongue lock structure includes a lock body 10, a lock tongue 20 and a locking spring 12 are arranged inside the lock body 10, the lock tongue 20 is movably connected to the lock body 10, and the two force-bearing ends of the locking spring 12 are respectively abutted against the lock body 10 and the lock tongue 20, thereby driving the lock tongue 20 to extend outward by a certain length through a lock hole opened on one side of the lock body 10, and then inserting it into the tongue groove of the door frame to achieve the locking operation of the door; the lock body 10 is also rotatably connected to a door opening handle 15, one end of the door opening handle 15 is transmission-connected to the lock tongue 20, thereby driving the lock tongue 20 to move a certain distance into the lock body 10, and escape from the tongue groove of the door frame to achieve the opening operation of the door; the lock body 10 is also provided with an anti-locking mechanism 30, which is movably connected to the lock body 10 and can form a limit locking operation on the lock tongue 20, thereby limiting the movement of the lock tongue 20 into the lock body 10, and achieving the anti-locking operation of the lock body 10.

[0028] Specifically, the lock generally has a lock tongue 20, and the lock tongue 20 extending outward is inserted into the door frame tongue groove of the door frame to achieve the locking operation of the door. When the door needs to be opened, the lock body 10 needs to be unlocked first, and the door handle 15 can be used to drive the lock tongue 20 to retreat into the lock body 10, that is, to withdraw from the door frame tongue groove, thereby releasing the locking operation of the door so that the door can be opened. In order to improve safety, an anti-locking mechanism 30 can be set to anti-lock the lock tongue 20 so that the door handle 15 cannot drive the lock tongue 20 to move, thereby achieving the anti-locking operation of the door. Only when the anti-locking mechanism 30 is correctly opened and the anti-locking mechanism 30 releases the restriction on the lock tongue 20, can the door handle 15 be used again to open the lock and open the corresponding door.

[0029] However, the traditional lock has a complex structure and is not designed to be installed in a vehicle, which may cause the internal structure of the lock to be easily damaged by a bumpy vehicle. In particular, the side wall fit between the anti-locking mechanism 30 and the lock tongue 20 may easily cause the shaking lock tongue 20 to collide with the anti-locking mechanism 30 and damage the lock tongue 20.

[0030] Therefore, the present invention eliminates the deadbolt, and utilizes the anti-locking base 34 and the locking rod 31 to abut the oblique tongue. The specific structure is that the locking rod 31 abuts against the end of the locking rod of the oblique tongue, which changes the traditional side fitting structure, and adopts the method of blocking the oblique tongue from the retraction path of the oblique tongue so that it cannot be retracted, thereby realizing the anti-locking operation. Even if the vehicle bumps up and down, causing the lock tongue 20 to shake violently up and down, the locking rod 31 at its end will not be damaged. In addition, an arc groove 25 can be provided at the end of the anti-locking end 22 of the lock tongue 20, and an arc portion 32 is provided at the position where the locking rod 31 abuts against the arc groove 25, so that the arc portion 32 and the arc groove 25 cooperate with each other, and a certain displacement space can be generated, so that even if the lock tongue 20 shakes violently, the locking rod 31 will not be damaged, and the locking effect of the locking rod 31 on the lock tongue 20 can be ensured.

[0031] Secondly, when unlocking is required, the anti-lock base 34 must be rotated to release the locking rod 31 from the abutment lock on the oblique tongue, and then the door handle 15 can be pulled to open the door. In particular, by providing the anti-lock base 34, the lock tongue 20 and the lock core can be separated from each other, preventing the lock tongue 20 from bumping and hitting during the operation of the vehicle, resulting in damage to the lock core.

[0032] like Figure 3 As shown, preferably, one end of the lock tongue 20 is set as an oblique tongue end 21, which is used to extend out of the lock body 10 and insert into the tongue groove of the door frame; the end of the other end is set as an anti-locking end 22, which is used to abut against the anti-locking mechanism 30; the anti-locking mechanism 30 is provided with a locking rod 31, and the locking rod 31 can be detachably abutted against the anti-locking end 22, thereby forming a releasable locking operation on the lock tongue 20.

[0033] Specifically, one end of the lock tongue 20 is set as an oblique tongue end 21, which is used to extend out of the lock body 10 and insert into the door frame tongue groove; the other end is set as an anti-locking end 22, which is used to abut the anti-locking mechanism 30. The releasable locking operation of the lock tongue 20 is achieved through the detachable abutment of the anti-locking mechanism 30 (including the anti-locking base 34 and the locking rod 31). And the locking rod 31 abuts against the end of the anti-locking end 22 of the lock tongue 20, so even if the lock tongue 20 shakes up and down during the operation of the vehicle, it will not hit the locking rod 31, and will not affect the life of the locking rod 31.

[0034] In particular, during the locking process, the interaction force between the locking rod 31 and the lock tongue 20 is transmitted along the axial direction of the lock tongue 20 and the axial direction of the locking rod 31, thereby not forming a lateral force on the lock tongue 20 or the locking rod 31, reducing the risk of breakage and extending its service life.

[0035] like Figure 3 , Figure 5 and Figure 7As shown, preferably, the anti-lock mechanism 30 is provided with an anti-lock base 34, one end of the locking rod 31 is fixedly connected to the anti-lock base 34, and the other end thereof forms a free end; the anti-lock base 34 is rotatably connected to the lock body 10, and rotates a certain angle under the drive of the unlocking device, or the anti-lock base 34 is slidably connected to the lock body 10, and slides a certain distance under the drive of the unlocking device, so that the locking rod 31 switches between the two states of abutting the lock tongue 20 and disengaging from the lock tongue 20.

[0036] Specifically, the anti-lock base 34 can switch the state of the locking rod 31 under the drive of the unlocking device by rotating or sliding. The rotation or sliding of the anti-lock base 34 will drive the locking rod 31 to abut or disengage from the anti-lock end 22 of the lock tongue 20, thereby realizing the anti-locking and unlocking operations of the lock.

[0037] like Figure 3 and Figure 5 As shown, preferably, the side wall of the free end of the locking rod 31 can be detachably abutted against the anti-locking end 22 of the locking tongue 20. The end of the free end of the locking rod 31 can be detachably abutted against the anti-locking end 22 of the locking tongue 20.

[0038] Specifically, when the anti-lock base 34 is arranged in the axial extension direction of the lock tongue 20, it is preferred to use the end of the free end of the locking rod 31 to abut against the anti-lock end 22. When the anti-lock base 34 is arranged in the axial vertical direction of the lock tongue 20, it is preferred to use the side wall of the free end of the locking rod 31 to abut against the anti-lock end 22. Using the side wall to abut against the anti-lock end 22 can reduce the length of the lock body 10, but it may also reduce the locking performance of the lock tongue 20 accordingly, so it is only used in the use scenario where the length of the lock body 10 is required.

[0039] like Figure 1 , Figure 5 and Figure 6 As shown, preferably, the door handle 15 is rotatably connected to the lock body 10, one end of which forms a door handle for opening the door, and the other end of which is provided with an unlocking lever 16, one end of the unlocking lever 16 is fixedly connected to the door handle 15, and the other end of the unlocking lever 16 is transmission-connected to the lock tongue 20, and can drive the lock tongue 20 to move a certain distance into the lock body 10, so that it can escape from the tongue groove of the door frame, thereby realizing the opening operation of the door.

[0040] Specifically, a passive push block 23 is provided at a position of the lock tongue 20 corresponding to the unlocking lever 16. The passive push block 23 is fixed to the lock tongue 20 and is used to cooperate with the unlocking lever 16 so that it can drive the lock tongue 20 to retreat into the lock body 10 to achieve the unlocking operation. In addition, an avoidance groove 24 is also provided at a position of the lock tongue 20 corresponding to the unlocking lever 16. The avoidance groove 24 is used to accommodate the end of the unlocking lever 16, so that the unlocking lever 16 and the lock tongue 20 cooperate with each other to avoid position conflict.

[0041] Secondly, the door opening handle 15 is also provided with an outer handle and an inner handle, wherein the outer handle and the inner handle are both rotatably connected to the lock body 10, and are both provided with corresponding unlocking levers 16, so that the user can either turn the outer handle outside the door or turn the inner handle inside the door, both of which can push the lock tongue 20 back a certain distance and disengage from the tongue groove of the door frame, thereby realizing the door opening operation.

[0042] Again, in order to prevent the lock tongue 20 from extending outward too long under the elastic force of the locking spring 12, a limiting side wall 11 can be set at the corresponding position of the lock body 10. The limiting side wall 11 can limit the lock tongue 20 so that the length of its extension meets the preset length. For example, the limiting side wall 11 can cooperate with the passive push block 23 to achieve the limiting operation of the lock tongue 20. Since the unlocking lever 16 also needs the cooperation of the passive push block 23 to achieve the retraction operation of the lock tongue 20, the unlocking lever 16 can be set between the limiting side wall 11 and the passive push block 23, such as Figure 4 As shown, the limiting side wall 11 can realize the limiting operation of the lock tongue 20 through the cooperation of the unlocking lever 16 and the passive push block 23, while it does not hinder the unlocking lever 16 from pushing the passive push block 23 to realize the retraction operation of the lock tongue 20.

[0043] like Figure 5 and Figure 7 As shown, preferably, the unlocking device is also provided with an electric unlocking mechanism 40, and the electric unlocking mechanism 40 is provided with an unlocking motor 41 and an unlocking gear set 50, one end of the unlocking gear set 50 is transmission connected to the output shaft of the unlocking motor 41, and the other end thereof is transmission connected to the anti-locking base 34, which is used to drive the anti-locking base 34 to drive the locking rod 31 to abut against the lock tongue 20 or disengage from the lock tongue 20.

[0044] Specifically, a touch protrusion 33 is provided on both sides of the locking rod 31. When the locking rod 31 is in a locked state or an unlocked state, a touch switch 13 is installed at the position of the lock body 10 corresponding to the touch protrusion 33. When the anti-lock base 34 drives the locking rod 31 to lock or unlock, the touch protrusion 33 can synchronously abut against the corresponding touch switch 13, so that the touch switch 13 sends a corresponding electrical signal to the control module 63. After receiving the electrical signal, the control module 63 can control the unlocking motor 41 to stop running, thereby further optimizing the safety and reliability of the lock.

[0045] Secondly, the unlocking motor 41 drives the unlocking gear set 50 (including the shaft sleeve gear 52 and the jumping gear 55), and further drives the anti-locking base 34 to rotate a certain angle, so as to realize the locking or unlocking operation of the locking rod 31 on the lock tongue 20. The jumping gear 55 and the shaft sleeve gear 52 are connected in a disengageable meshing connection. When the anti-locking base 34 rotates to the right position, the jumping gear 55 will move away from the shaft sleeve gear 52, forming a "jumping tooth" state, cutting off the transmission torque, protecting the unlocking gear set 50 and the anti-locking base 34, and preventing the danger of broken teeth due to overload.

[0046] like Figure 8 As shown, preferably, the unlocking gear set 50 is provided with a sleeve gear 52 and a jumping gear 55, the sleeve gear 52 is transmission-connected to the output shaft of the unlocking motor 41, the jumping gear 55 is transmission-connected to the anti-locking base 34, and the sleeve gear 52 and the jumping gear 55 cooperate with each other to form a detachable transmission connection.

[0047] Specifically, the sleeve gear 52 and the output shaft of the unlocking motor 41 can be connected by key connection, interference fit connection, expansion sleeve connection, etc. in the prior art to achieve the corresponding transmission connection. The output shaft can also be directly set as a D-shaped shaft, and then matched through the D-shaped hole of the sleeve gear 52, which can effectively prevent the gear from sliding on the shaft and provide a reliable transmission connection.

[0048] Secondly, the portion of the jumping gear 55 corresponding to the anti-lock base 34 is provided with a driving tooth 57, and the portion of the anti-lock base 34 corresponding to the driving tooth 57 is provided with a driven tooth 35. The driving tooth 57 and the driven tooth 35 mesh with each other to form a transmission connection, so that the unlocking motor 41 is operated, the driving sleeve gear 52 is driven to rotate, and the jumping gear 55 is driven to rotate, so that the driving tooth 57 of the jumping gear 55 drives the driven tooth 35 of the anti-lock base 34 to operate synchronously, drives the anti-lock base 34 to rotate a certain angle, and drives the locking rod 31 to abut against the lock tongue 20 or disengage from the lock tongue 20.

[0049] like Fig. 9 As shown, preferably, an active end face tooth 53 is provided at one end of the sleeve gear 52 facing the jumping gear 55, and a passive end face tooth 56 is provided at one end of the jumping gear 55 facing the sleeve gear 52, and the active end face tooth 53 and the passive end face tooth 56 cooperate with each other to form a disengageable meshing connection.

[0050] Specifically, in order to make the end face teeth fit better, a relatively long center column 54 can be set at the end of the sleeve gear 52 facing the jumping gear 55, so that the jumping gear 55 can be sleeved on the center column 54 and rotate around the center column 54.

[0051] Secondly, in the normal operation state, the active end face teeth 53 and the passive end face teeth 56 mesh with each other, and can normally transmit the rotational torque, so that the unlocking motor 41 drives the anti-locking base 34 to rotate, thereby realizing the locking or unlocking operation. When the anti-locking base 34 rotates to a certain angle and cannot continue to rotate, the triggering protrusion 33 also happens to abut against the light touch switch 13, so that the light touch switch 13 sends an electrical signal to the control module 63, so that it controls the unlocking motor 41 to stop running. However, when the touch switch 13 is damaged, or the unlocking motor 41 is not stopped in time, it may continue to drive the sleeve gear 52 to rotate. At this time, the tooth surfaces of the active end face teeth 53 and the passive end face teeth 56 cooperate with each other, and a certain pushing force is generated along the axial direction of the jumping gear 55, so that the jumping gear 55 is displaced to a certain extent in the direction away from the sleeve gear 52, so that the active end face teeth 53 and the passive end face teeth 56 are separated from each other, forming a jumping tooth state, thereby cutting off the transmission torque between the sleeve gear 52 and the jumping gear 55, protecting the unlocking gear set 50 and the anti-lock base 34, and preventing the risk of broken teeth.

[0052] Again, when the inner knob 17 or the mechanical lock core 18 is used to unlock or lock the RV lock, rotating the lock core can drive the anti-lock base 34 to lock or release the lock tongue 20, so that it can achieve locking or unlocking operation. At this time, the anti-lock base 34 will also drive the jumping gear 55 to rotate synchronously. Since the shaft sleeve gear 52 is kept stationary at this time, the jumping gear 55 can also be driven by the anti-lock base 34 to disengage the passive end face teeth 56 and the active end face teeth 53 from each other, so that the jumping gear 55 can rotate normally.

[0053] In addition, when the jumping gear 55 moves a certain distance away from the shaft sleeve gear 52, it will squeeze the pressure spring 51 to a certain extent, causing it to deform to a certain extent. When the shaft sleeve gear 52 or the anti-lock base 34 stops rotating, the pressure spring 51 resets and pushes the jumping gear 55 toward the shaft sleeve gear 52 again, so that the active end face teeth 53 and the passive end face teeth 56 abut against each other and mesh again to form a transmission connection.

[0054] like Figure 8 As shown, preferably, the unlocking gear set 50 is also provided with a pressure spring 51, one end of the pressure spring 51 abuts against the lock body 10, and the other end thereof abuts against the jumping gear 55, so that its elastic force drives the jumping gear 55 to move toward the direction of the sleeve gear 52, thereby making the passive end face teeth 56 and the active end face teeth 53 abut against each other to form a disengageable meshing connection.

[0055] Specifically, the elastic force of the pressure spring 51 drives the jumping gear 55 to move toward the sleeve gear 52, so that the active end face teeth 53 of the jumping gear 55 and the passive end face teeth 56 of the sleeve gear 52 form a disengageable meshing connection, ensuring the efficient operation of the unlocking mechanism.

[0056] In addition, in order to make the rotation of the jumping gear 55 smoother, a balance column 58 can be set at the end of the jumping gear 55 away from the shaft sleeve gear 52, and a balance groove 14 can be set at the position of the lock body 10 corresponding to the balance column 58, so that the balance column 58 of the jumping gear 55 can be inserted into the balance groove 14, and can jump along the axial direction of the jumping gear 55, resulting in a certain displacement change, thereby realizing the separation between the shaft sleeve gear 52 and the jumping gear 55, and releasing the transmission connection between the two.

[0057] Secondly, a countersunk hole is provided at the center axis of the balancing column 58, so that the pressure spring 51 can be inserted into the countersunk hole, so that one end of the pressure spring 51 can abut against the jumping gear 55, and the other end can abut against the bottom wall of the balancing groove 14. In order to optimize the cooperation between the output shaft of the unlocking motor 41 and the unlocking gear set 50, an axial hole can be provided on the bottom wall of the balancing groove 14, so that the free end of the output shaft can be inserted into the axial hole to form a rotation connection, thereby preventing the free end of the output shaft from shaking.

[0058] like Figure 1 and Figure 2 As shown, preferably, the present invention also provides a motorhome lock, including the above-mentioned lock structure, and also including an electronic module 60, which is used to control the electric unlocking mechanism 40 to perform unlocking or locking operations; the electronic module 60 is provided with a battery module 61, a control module 63 and a password button 65 which are electrically connected to each other, the battery module 61 is electrically connected to the unlocking motor 41 of the electric unlocking mechanism 40, the control module 63 is used to set and control the motorhome lock, and the password button 65 is used to input a password.

[0059] Specifically, the control module 63 can perform operations such as setting, modifying, and clearing the unlocking password, and the password button 65 is used to input the corresponding password number or password character when setting the password or unlocking. The control module 63 is also provided with a remote control chip (not shown in the figure), so that the corresponding locking or unlocking operation can be performed by the remote control. Fig.10 As shown, the mechanical key can be stored in the remote control for easy carrying.

[0060] Secondly, the control module 63 and the battery module 61 are arranged on the side of the RV lock facing the inside of the door, and the password button 65 is arranged on the side of the RV lock facing the outside of the door, and the user can enter the corresponding password when he needs to unlock the door outside. A quick lock button can also be set on the password button 65, that is, after the user closes the door, he can directly use the quick lock button to lock the RV lock, because the locking operation does not require the input of a password.

[0061] Again, the control module 63 is also provided with a shortcut key 64, which is electrically connected to the control module 63 and the electric unlocking mechanism 40, respectively. The shortcut key 64 is preferably arranged on the side of the RV lock facing the door, so that the user can achieve one-key locking or one-key unlocking operation inside the door. The battery module 61 is also provided with a charging interface 62, which is arranged on the side of the RV lock facing the door, and is used to replenish the battery module 61 with electric energy.

[0062] In addition, the unlocking device is provided with an inner knob 17, which is rotatably connected to the side of the lock body 10 facing the inside of the door, and is transmission-connected to the anti-lock base 34, and is used to drive the anti-lock base 34 to drive the locking rod 31 to abut against the lock tongue 20 or to disengage from the lock tongue 20. The unlocking device is also provided with an inner slide, which is slidably connected to the side of the lock body 10 facing the inside of the door, and is transmission-connected to the anti-lock base 34, and is used to drive the anti-lock base 34 to drive the locking rod 31 to abut against the lock tongue 20 or to disengage from the lock tongue 20.

[0063] like Figure 2 and Figure 6 As shown, the unlocking device is further provided with a mechanical lock core 18, which is installed on the side of the lock body 10 facing the door, and the lever of the mechanical lock core 18 is transmission-connected to the anti-lock base 34, and is used to drive the anti-lock base 34 to drive the locking rod 31 to abut against the lock tongue 20 or to disengage from the lock tongue 20. Specifically, when the battery module is defective or the electronic module 60 has a problem, the key can also be used to unlock and lock the mechanical lock core 18, further improving the applicability of the lock.

[0064] Example 1: Basic structure and manual operation example of single-tongue lock Basic structure of lock The single-tongue lock structure in this embodiment includes a lock body 10, and a lock tongue 20 and a locking spring 12 are arranged inside the lock body 10. The lock tongue 20 is movably connected to the lock body 10, and the two force-bearing ends of the locking spring 12 are respectively abutted against the lock body 10 and the lock tongue 20. A lock hole is provided on one side of the lock body 10. Under the action of the locking spring 12, the lock tongue 20 extends outwards to a certain length through the lock hole and can be inserted into the tongue groove of the door frame to achieve the locking operation of the door.

[0065] The lock body 10 is also rotatably connected to a door handle 15, one end of which is transmission-connected to a lock tongue 20. When the door needs to be opened, the door handle 15 is rotated, and the unlocking lever 16 at the other end thereof drives the lock tongue 20 to move a certain distance inside the lock body 10, so that the lock tongue 20 is disengaged from the tongue groove of the door frame, thereby realizing the door opening operation.

[0066] Anti-locking mechanism 30 and manual operation The lock body 10 is provided with an anti-locking mechanism 30, which includes an anti-locking base 34 and a locking rod 31. One end of the locking rod 31 is fixed to the anti-locking base 34, and the other end forms a free end.

[0067] When the door needs to be locked, the inner knob 17 is manually turned to rotate the locking base 34 synchronously, so that the free end of the locking rod 31 abuts against the locking end 22 of the lock tongue 20, and the lock tongue 20 is blocked from the retracting path of the inclined tongue, so that it cannot be retracted, and the locking operation is realized. At this time, even if the door opening handle 15 is turned, the lock tongue 20 cannot move into the lock body 10 because it is limited by the locking rod 31, and the door cannot be opened.

[0068] When unlocking is required, the inner knob 17 is manually rotated again to disengage the locking rod 31 from the anti-locking end 22 of the lock tongue 20, thereby releasing the restriction on the lock tongue 20. At this time, the door handle 15 can be pulled to open the door.

[0069] Embodiment 2: Single tongue lock electric unlocking embodiment Electric unlocking mechanism 40 components The lock in this embodiment is provided with an electric unlocking mechanism 40 on the basis of the first embodiment. The electric unlocking mechanism 40 is provided with an unlocking motor 41 and an unlocking gear set 50, and the unlocking gear set 50 includes a sleeve gear 52, a jumping gear 55 and a pressure spring 51. The sleeve gear 52 is transmission-connected to the output shaft of the unlocking motor 41, and the jumping gear 55 is transmission-connected to the anti-locking base 34, and the sleeve gear 52 and the jumping gear 55 cooperate with each other through the active end face teeth 53 and the passive end face teeth 56 to form a detachable transmission connection. One end of the pressure spring 51 abuts against the lock body 10, and the other end abuts against the jumping gear 55, so that its elastic force drives the jumping gear 55 to move toward the sleeve gear 52, so that the passive end face teeth 56 abut against the active end face teeth 53 to form a detachable meshing connection.

[0070] Electric unlocking process When electric unlocking or locking is required, the electronic module 60 comes into play. The electronic module 60 includes a battery module 61, a control module 63 and a password key 65 which are electrically connected to each other. The user enters the correct password through the password key 65, and after the control module 63 receives the signal, the battery module 61 is controlled to supply power to the unlocking motor 41 of the electric unlocking mechanism 40, and the unlocking motor 41 starts to operate.

[0071] The unlocking motor 41 drives the sleeve gear 52 to rotate, and the active end face teeth 53 of the sleeve gear 52 mesh with the passive end face teeth 56 of the jumping gear 55, driving the jumping gear 55 to rotate. The jumping gear 55 is provided with active teeth 57 at the position corresponding to the anti-locking base 34, and the anti-locking base 34 is provided with driven teeth 35 at the position corresponding to the active teeth 57. The active teeth 57 and the driven teeth 35 mesh with each other, so that the jumping gear 55 drives the anti-locking base 34 to rotate a certain angle.

[0072] If it is an unlocking operation, the rotation of the anti-lock base 34 will cause the locking rod 31 to disengage from the anti-lock end 22 of the lock tongue 20, and the door handle 15 can be turned to open the door; if it is a locking operation, the rotation of the anti-lock base 34 will cause the locking rod 31 to abut against the anti-lock end 22 of the lock tongue 20 to achieve locking.

[0073] Protection Mechanism The touch switch 13 is installed at the corresponding position of the lock body 10, and is used to detect the state of the locking rod 31. When the locking rod 31 rotates to the right position, the trigger protrusion 33 abuts against the touch switch 13, and the touch switch 13 sends an electrical signal to the control module 63, and the control module 63 immediately controls the unlocking motor 41 to stop running to avoid excessive rotation.

[0074] If the touch switch 13 is damaged, or the unlocking motor 41 is not stopped in time, and the shaft sleeve gear 52 continues to be driven to rotate, the tooth surfaces of the active end face teeth 53 and the passive end face teeth 56 cooperate with each other, and a certain pushing force is generated along the axial direction of the jumping gear 55, so that the jumping gear 55 is displaced to a certain extent in the direction away from the shaft sleeve gear 52, and the active end face teeth 53 and the passive end face teeth 56 are separated from each other, forming a jumping tooth state, thereby cutting off the transmission torque between the shaft sleeve gear 52 and the jumping gear 55, protecting the unlocking gear set 50 and the anti-locking base 34, and preventing the risk of broken teeth. When the shaft sleeve gear 52 or the anti-locking base 34 stops rotating, the pressure spring 51 is reset, and the jumping gear 55 is pushed toward the shaft sleeve gear 52 again, so that the active end face teeth 53 and the passive end face teeth 56 abut against each other and re-engage to form a transmission connection.

[0075] The user enters the password through the password button 65, and the control module 63 drives the unlocking motor 41 to operate after verifying the password, driving the unlocking gear set 50 to transmit the anti-locking base 34, driving the locking rod 31 to switch states, and completing the unlocking or locking operation. When the anti-locking base 34 rotates to the right position, the touch switch 13 sends an electrical signal to the control module 63, and the control module 63 controls the unlocking motor 41 to stop running. If the touch switch 13 is damaged or the unlocking motor 41 is not stopped in time, the tooth jump protection mechanism is activated, cutting off the transmission torque to protect the lock structure.

[0076] Embodiment 3: Embodiment of multiple unlocking methods for RV locks RV lock overall structure This embodiment is a motorhome lock, which adopts the above-mentioned single-tongue lock structure and adds an electronic module 60 for controlling the electric unlocking mechanism 40 to unlock or lock. The electronic module 60 includes a battery module 61, a control module 63 and a password button 65 electrically connected to each other. The battery module 61 supplies power to the entire electronic control module 63 and is electrically connected to the unlocking motor 41 to provide power for the electric unlocking mechanism 40. The control module 63 is used to set and control the lock, receive electrical signals from the password button 65, the control button or the touch switch 13, and control the operating state of the unlocking motor 41 according to the preset logic.

[0077] The password button 65 is used to input a password. After the user inputs the correct password, the control module 63 verifies the password and sends a command to drive the unlocking motor 41 to operate, thereby completing the unlocking or locking operation.

[0078] Multiple unlocking methods Electric password unlocking: When the user is outside the RV, he inputs the correct password through the password button 65. After receiving the signal, the control module 63 controls the unlocking motor 41 to operate. According to the electric unlocking process in Example 2, the anti-locking base 34 is driven to drive the locking rod 31 to disengage from the lock tongue 20 to realize the unlocking operation.

[0079] Unlocking by inner knob 17: The unlocking device is provided with an inner knob 17, which is rotatably connected to the side of the lock body 10 facing the door, and is transmission-connected to the anti-lock base 34. In the RV, the user rotates the inner knob 17 to drive the anti-lock base 34 to drive the locking rod 31 to abut against the lock tongue 20 or to disengage from the lock tongue 20, thereby realizing the unlocking or locking operation.

[0080] Unlocking with mechanical lock cylinder 18: The unlocking device is also provided with a mechanical lock cylinder 18, which is installed on the side of the lock body 10 facing the door, and the lever of the mechanical lock cylinder 18 is connected to the anti-lock base 34. Outside the vehicle, the user inserts the corresponding mechanical key into the mechanical lock cylinder 18 and rotates it, and the lever of the mechanical lock cylinder 18 drives the anti-lock base 34 to rotate, so that the locking rod 31 abuts against the lock tongue 20 or disengages from the lock tongue 20, completing the unlocking or locking operation.

[0081] The lock structure achieves a high-security, high-reliability and convenient lock solution by optimizing the mechanical design, introducing the electronic control module 63 and the tooth-jump protection mechanism, and is particularly suitable for mobile occasions such as RVs.

[0082] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A single-tongue lock structure, comprising a lock body (10), characterized in that: A lock tongue (20) and a locking spring (12) are provided inside the lock body (10); the lock tongue (20) is movably connected to the lock body (10); two force-bearing ends of the locking spring (12) respectively abut against the lock body (10) and the lock tongue (20), thereby driving the lock tongue (20) to extend outward by a certain length through a lock hole provided on one side of the lock body (10) and then insert into the tongue groove of the door frame, thereby realizing the locking operation of the door; the lock body (10) is also rotatably connected to a door opening handle (15), and the door opening handle is One end of the hand (15) is transmission-connected to the lock tongue (20), driving the lock tongue (20) to move a certain distance into the lock body (10) and to escape from the tongue groove of the door frame, thereby realizing an opening operation on the door; the lock body (10) is also provided with an anti-locking mechanism (30), which is movably connected to the lock body (10) and forms a limit locking operation on the lock tongue (20), thereby limiting the movement of the lock tongue (20) into the lock body (10), thereby realizing an anti-locking operation on the lock body (10).

2. A single-tongue lock structure according to claim 1, characterized in that: One end of the lock tongue (20) is configured as an oblique tongue end (21) for extending out of the lock body (10) and inserted into the tongue groove of the door frame; the other end is configured as an anti-locking end (22) for abutting against an anti-locking mechanism (30); the anti-locking mechanism (30) is provided with a locking rod (31), and the locking rod (31) can be detachably abutted against the anti-locking end (22), thereby forming a releasable locking operation on the lock tongue (20).

3. A single-tongue lock structure according to claim 2, characterized in that: The anti-lock mechanism (30) is provided with an anti-lock base (34); one end of the locking rod (31) is fixedly connected to the anti-lock base (34), and the other end thereof forms a free end; the anti-lock base (34) is rotatably connected to the lock body (10), and is rotated by a certain angle under the drive of the unlocking device, so that the locking rod (31) switches between two states of abutting against the lock tongue (20) and disengaging from the lock tongue (20).

4. A single-tongue lock structure according to claim 3, characterized in that: The side wall of the free end of the locking rod (31) is detachably abutted against the anti-locking end (22) of the locking tongue (20).

5. A single-tongue lock structure according to claim 3, characterized in that: The end of the free end of the locking rod (31) is detachably abutted against the anti-locking end (22) of the locking tongue (20).

6. A single-tongue lock structure according to claim 1, characterized in that: One end of the door handle (15) forms a door handle for opening the door, and the other end of the door handle is provided with an unlocking lever (16). One end of the unlocking lever (16) is fixedly connected to the door handle (15), and the other end of the unlocking lever (16) is transmission-connected to the lock tongue (20), and can drive the lock tongue (20) to move a certain distance inside the lock body (10) so that the lock tongue (20) is disengaged from the door frame tongue groove, thereby realizing the door opening operation.

7. A single-tongue lock structure according to claim 3, characterized in that: The unlocking device is further provided with an electric unlocking mechanism (40), the electric unlocking mechanism (40) being provided with an unlocking motor (41) and an unlocking gear set (50), one end of the unlocking gear set (50) being transmission-connected to the output shaft of the unlocking motor (41), and the other end of the unlocking gear set (50) being transmission-connected to the anti-locking base (34) for driving the anti-locking base (34) to drive the locking rod (31) to abut against the locking tongue (20) or to disengage from the locking tongue (20).

8. A single-tongue lock structure according to claim 7, characterized in that: The unlocking gear set (50) is provided with a shaft sleeve gear (52) and a jumping gear (55); the shaft sleeve gear (52) is drivingly connected to the output shaft of the unlocking motor (41); the jumping gear (55) is drivingly connected to the anti-locking base (34); and the shaft sleeve gear (52) and the jumping gear (55) cooperate with each other to form a detachable driving connection.

9. A single-tongue lock structure according to claim 8, characterized in that: An end of the shaft sleeve gear (52) facing the jumping gear (55) is provided with an active end face tooth (53), and an end of the jumping gear (55) facing the shaft sleeve gear (52) is provided with a passive end face tooth (56). The active end face tooth (53) and the passive end face tooth (56) cooperate with each other to form a disengageable meshing connection.

10. A motorhome lock, characterized in that: A single-tongue lock structure comprising any one of claims 1 to 9, further comprising an electronic module (60) for controlling an electric unlocking mechanism (40) to perform unlocking or locking operations; the electronic module (60) is provided with a battery module (61), a control module (63) and a password button (65) electrically connected to each other, the battery module (61) being electrically connected to an unlocking motor (41) of the electric unlocking mechanism (40), the control module (63) being used to set and control the RV lock, and the password button (65) being used to input a password.

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