Motor-locked-rotor-preventing motor house lock with connecting rod structure

Abstract

The utility model relates to a motor locked-rotor preventing motor house lock with a connecting rod structure, which is designed for solving the technical problems of single structural form of a clutch mechanism and lack of brake structure design and fluted disc clutch mechanism design of the existing like products. A fluted disc clutch mechanism or a ratchet clutch mechanism is arranged in a housing of the motor home lock, and the motor home lock is characterized in that the fluted disc clutch mechanism comprises a rotary sliding fluted disc and an inner fluted disc, a transmission shaft of a rotating shaft motor is connected with the inner fluted disc in the rotary sliding fluted disc, and elastic deformation holes distributed at equal intervals are formed in the disc surface of the inner fluted disc; a brake head on one side of the outer diameter of the inner fluted disc is wedged to inner tooth grooves which are equidistantly distributed in the inner diameter of the rotary sliding fluted disc; an inner manual unlocking tongue is arranged on the outer diameter of the shaft portion of the manual unlocking rod in the housing, one side of the inner manual unlocking tongue protrudes and is hinged to one end of an unlocking connecting rod, the other end of the unlocking connecting rod is hinged to a first pin column at one end of the top of the rotary sliding fluted disc, and a second pin column at the other end of the top of the rotary sliding fluted disc is inserted into a small spring bolt sliding hole of the small spring bolt.

Description

Technical Field

[0001] The utility model relates to a caravan lock, in particular to a caravan lock with a connecting rod structure for preventing motor from stalling. Background Art

[0002] At present, the scale of the global RV market continues to expand, so the market demand is strong. In addition to traditional mechanical locks, with the continuous maturity of electronic technology, smart RV locks and high-tech products are gradually accepted by the market; at the same time, with the development and popularization of intelligent technology, smart RV locks will become more and more intelligent in the future. Smart door locks are generally opened by passwords, fingerprints, face recognition and other methods, and functions such as automatic unlocking are gradually becoming a trend, which can effectively improve the user experience. As disclosed in the Chinese patent literature, the application number is 202110934901.8, the authorization announcement date is 2022.06.14, and the invention name is "A waterproof and shockproof electronic smart RV lock". The first locking structure of the RV lock includes an outer handle, a first lock core assembly mounted on the outer handle, and a switch lock tongue; the switch lock tongue is mounted in the installation cavity, the outer handle is mounted on the front of the base, and the outer handle and the inner handle control the switch of the switch lock tongue; the second locking structure includes a second lock core assembly, a safety lock tongue, a connecting assembly, and an electronic locking device; the safety lock tongue and the connecting assembly are arranged in the installation cavity, the unlocking knob is mounted on the back of the inner plate, the connecting assembly connects the second lock core assembly, the safety lock tongue, and the unlocking knob, and the unlocking knob and the second lock core assembly control the switch of the safety lock tongue through the connecting assembly; the worm gear drives the connecting sleeve to rotate through static friction, which is converted into the linear motion of the safety lock tongue. However, the anti-blocking structure with anti-slip friction structure, the connecting rod structure to prevent the lock tongue from retreating after unlocking, and the unlocking method of unlocking inside and outside the above-mentioned products and similar products all belong to the existing conventional technology. At the same time, some other RV locks currently use a hasp lock structure. There are two main types of hasp lock structures on the market: 1. Electric locking by friction, using the pressure of the spring to drive the connecting rod to rotate, friction rotation, and high power consumption; 2. A double connecting rod to achieve a locked structure, thereby realizing the switch lock. The above two forms of unlocking methods have the disadvantages of complex structure and difficult to control friction drag force. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a motor vehicle lock with a connecting rod structure to prevent motor stalling in the art, so as to solve the technical problems that the clutch mechanism structure of existing similar products is relatively simple, lacks brake structure design, and gear clutch mechanism design; the friction structure design of the worm wheel and worm in the worm clutch mechanism is poor, the structure is complex, the production and assembly are relatively inconvenient, and the power consumption of unlocking is high. The purpose is achieved through the following technical solutions.

[0004] A motor home lock with a connecting rod structure to prevent motor jamming, a cover shell is provided between the base and the pressure plate assembly of the motor home lock, an outward-opening door panel is provided in a groove on one side of the top of the base, one side of the outward-opening door panel is hingedly fixed to the base and is turned over, a password key assembly is provided on the other symmetrical side of the top of the base, the password key assembly includes a password key and a key PCB board, an inward-opening door panel is provided on one side of the bottom of the pressure plate assembly on one side of the outward-opening door panel, one side of the inward-opening door panel is hingedly fixed to the pressure plate assembly and is turned over, a motor, a small lock tongue, a large lock tongue and a PCB board assembly, and a toothed disc clutch mechanism or a ratchet clutch mechanism are provided in the cover shell, the key PCB board and the motor are connected to the PCB board assembly through a circuit, one end of the small lock tongue and the large lock tongue extends out of one side of the cover shell, and the cover A large lock tongue spring is provided at the other end of the large lock tongue in the shell, and the inner lever on the flipping side of the inner opening door panel is inserted into the large lock tongue sliding hole at one end of the lock tongue spring on the large lock tongue through the pressure plate assembly. At the same time, the outer lever on the flipping side of the outer opening door panel is inserted into the large lock tongue sliding hole at one end of the lock tongue spring on the large lock tongue through the base; a first lock core assembly is provided at the base on one side of the outer opening door panel or the password button assembly, and the lock core at one end of the first lock core assembly extending out of the bottom of the base is connected to one end of a manual unlocking rod in the cover shell, and the shaft portion at the other end of the manual unlocking rod extends out of the pressure plate assembly and is connected to the first inner unlocking rod, or the shaft portion at the other end of the manual unlocking rod is connected to the ratchet clutch mechanism, and the clutch mechanism extends out of the second inner manual unlocking tongue of the pressure plate assembly and is connected to the second inner unlocking rod. The key points of its structural design are that the small lock tongue is the first small lock tongue, the motor is a rotating shaft motor, the toothed disc clutch mechanism includes a rotating sliding toothed disc and an inner toothed disc, the toothed disc clutch mechanism is installed in the housing through the inner toothed disc, the transmission shaft of the rotating shaft motor is connected to the center hole of the inner toothed disc in the rotating sliding toothed disc, the disc surface of the inner toothed disc is provided with elastic deformation holes distributed at equal intervals, at least one side of the outer diameter of the inner toothed disc is provided with a protruding brake head, and the brake head of the inner toothed disc is wedged in the inner tooth grooves distributed at equal intervals on the inner diameter of the rotating sliding toothed disc; the outer diameter of the shaft of the manual unlocking lever in the housing is provided with a first inner manual unlocking tongue, one side of the first inner manual unlocking tongue is protruding and hinged with one end of the unlocking connecting rod, the other end of the unlocking connecting rod is hinged with the first pin at one end of the top of the rotating sliding toothed disc, and the second pin at the other end of the top of the rotating sliding toothed disc is inserted into the small lock tongue sliding hole of the first small lock tongue. The toothed disc clutch mechanism replaces the existing worm clutch mechanism, facilitates the assembly of components, and reduces space occupation.

[0005] The outer diameter of the rotating sliding gear plate is provided with raised limiting columns on both sides, and limiting ribs are provided in the cover shell or the bottom of the base corresponding to at least one of the limiting columns. Thus, the above structure facilitates the RV lock to achieve limiting in the unlocking or locking position.

[0006] The transmission shaft of the rotating shaft motor is bent at 90 degrees and extends out to be connected with the central hole of the inner gear disk in the rotating sliding gear disk. The above structure reduces the volume occupied by the rotating shaft motor and facilitates the power improvement of the rotating shaft motor.

[0007] The small lock tongue is the second small lock tongue, the motor is a worm motor, the ratchet clutch mechanism comprises a manual clutch rod, a clutch protective cover, a clutch compression spring and a clutch gear, the ratchet clutch mechanism is installed in the cover shell through the clutch protective cover, the clutch gear and the manual clutch rod are simultaneously fixed to the outer diameter of the shaft portion of the manual unlocking rod in the cover shell, and the shaft portion of the manual unlocking rod is sleeved and fixed to the clutch protective cover, and the outer diameter of the shaft portion of the manual unlocking rod in the clutch protective cover at the sleeve position is provided with a clutch spring, and the fitting parts of the clutch gear and the top of the manual clutch rod are respectively provided with protruding meshing and equidistantly distributed ratchets; a rod portion is provided on one side of the bottom of the manual clutch rod, and the rod portion of the manual clutch rod is connected with one end of the second inner manual unlocking tongue through an arc hole on one side of the clutch protective cover and a small lock tongue sliding hole of the second small lock tongue, and the other end of the second inner manual unlocking tongue extends out of the pressure plate assembly and is connected with the second inner unlocking rod, and the worm on one side of the transmission shaft of the worm motor meshes with the clutch gear extending out of one side of the clutch protective cover, and the clutch gear is a worm gear. The above structure adds a ratchet meshing structure on the basis of the worm clutch mechanism, thereby increasing the friction force and braking effect, and improving safety and stability.

[0008] The worm motor is vertically arranged on the inner wall of the housing at the other side of the small lock tongue and the large lock tongue extending end. The above structure reduces the volume occupied by the worm motor and facilitates the power improvement of the worm motor.

[0009] A battery box is provided on the other side of the bottom of the pressure plate assembly, and the battery box is connected to the PCB board assembly through a circuit. The above structure adopts an internal power supply mode, and it can also adopt an external power supply mode.

[0010] A sealing sleeve is arranged in the groove of the base at the bottom of the outward-opening door plate, and the outer lever of the outward-opening door plate is inserted into the large lock tongue sliding hole of the large lock tongue through the sealing sleeve of the base. The above structure improves the waterproof effect of the outward-opening door plate.

[0011] The outward-opening door panel is provided with a second lock core assembly, and the lock core extending from the bottom of the second lock core assembly is buckled and locked with the lock frame in the outward-opening door panel. Therefore, the outward-opening door panel can be used only after the second lock core assembly is opened and unlocked.

[0012] The PCB board assembly is provided with an electric remote control module, and the electric remote control module is unlocked by wireless connection through a key remote control. That is, the RV lock also includes a key remote control, and in addition to mechanical key unlocking and password electronic unlocking, the key remote control can also be used to unlock the car.

[0013] The utility model has reasonable structural design, two clutch mechanisms are easy to install, low power consumption for unlocking, good stability and safety, and good waterproof effect; it is suitable for use as a motor vehicle lock with a connecting rod structure to prevent motor jams, as well as a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1This is a schematic diagram of the explosion structure of the first embodiment of the utility model Figure 1 .

[0015] Figure 2 yes Figure 1 Schematic diagram of the explosion structure Figure 2 .

[0016] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure after assembly.

[0017] Figure 4 yes Figure 3 Schematic diagram of the rear three-dimensional structure, in which the dotted line represents the internal structure.

[0018] Figure 5 yes Figure 4 Schematic diagram of the internal structure of the invention, in which the dotted lines represent the unlocking connecting rod, the first inner manual unlocking tongue and the first inner unlocking rod.

[0019] Figure 6 yes Figure 4 Schematic diagram of the internal structure of the locked state, the framed part in the figure is an enlarged view of the internal structure of the rotating sliding gear plate.

[0020] Figure 7 yes Figure 6 Schematic diagram of the internal structure of the unlocked state.

[0021] Figure 8 This is a schematic diagram of the rear structure of the second embodiment of the utility model, in which the dotted line represents the internal structure.

[0022] Fig. 9 yes Figure 8 Schematic diagram of the explosion structure.

[0023] Fig.10 yes Figure 8 Schematic diagram of the internal structure in the locked state.

[0024] Fig.11 yes Fig.10 Schematic diagram of the internal structure of the unlocked state.

[0025] Serial number and name of the accompanying drawings: 1. First lock core assembly, 2. Password button, 3. Button PCB board, 4. Base, 5. Manual unlocking rod, 6. Unlocking connecting rod, 7. Cover, 8. Pressure plate assembly, 9. Inner opening door panel, 901, Inner lever, 10. Large lock tongue spring, 11. Large lock tongue, 1101, Large lock tongue sliding hole, 12. PCB board assembly, 13. Rotating sliding gear plate, 1301, Limiting column, 14. First small lock tongue, 15. Inner gear plate, 16. Shaft motor, 17. Sealing sleeve, 18. Outer opening door panel, 1801, Outer lever, 19. Second lock core assembly, 20. First inner manual unlocking tongue, 21. First inner unlocking rod, 22. Second inner unlocking rod, 23. Second inner manual unlocking tongue, 24. Second small lock tongue, 25. Manual clutch lever, 2501, rod, 26. Clutch protective cover, 27. Clutch compression spring, 28. Clutch gear, 29. Worm motor. Implementation

[0026] Now, in conjunction with the accompanying drawings, the structure and use of the utility model are further described. Figure 1-Figure 8 In the illustrated embodiment 1, a cover shell 7 is provided between the base 4 and the pressure plate assembly 8 of the RV lock, an outward-opening door panel 18 is provided in a groove on one side of the top of the base, and the outward-opening door panel is provided with a second lock core assembly 19, and the lock core extending from the bottom of the second lock core assembly is buckled and locked with the lock frame in the outward-opening door panel; one side of the outward-opening door panel is hingedly fixed to the base and is flipped, and the other symmetrical side of the top of the base is provided with a password key assembly, the password key assembly includes a password key 2 and a key PCB board 3, an inward-opening door panel 9 is provided on one side of the bottom of the pressure plate assembly on one side of the outward-opening door panel, and one side of the inward-opening door panel is hingedly fixed to the pressure plate assembly and is flipped, a motor, a small lock tongue, a large lock tongue 11 and a PCB board assembly 12, as well as a toothed disc clutch mechanism or a ratchet clutch mechanism are provided in the cover shell, the key PCB board and the motor are connected to the PCB board assembly through lines, and the small lock tongue and the large lock tongue One end of the large lock tongue in the housing extends out of one side of the housing, and the other end of the large lock tongue in the housing is provided with a large lock tongue spring 10. The inner lever 901 on the flip side of the inner door panel is inserted into the large lock tongue sliding hole 1101 on one end of the lock tongue spring on the large lock tongue through the pressure plate assembly. At the same time, the outer lever 1801 on the flip side of the outer door panel is also inserted into the large lock tongue sliding hole on one end of the lock tongue spring on the large lock tongue through the base. The base on one side of the outer door panel or the password key assembly is provided with a first lock core assembly 1, and the lock core of one end of the first lock core assembly extending from the bottom of the base is connected to one end of the manual unlocking rod 5 in the housing, and the shaft of the other end of the manual unlocking rod extends out of the pressure plate assembly and is connected to the first inner unlocking rod 21, or the shaft of the other end of the manual unlocking rod is connected to the ratchet clutch mechanism, and the clutch mechanism extends out of the second inner manual unlocking tongue 23 of the pressure plate assembly and is connected to the second inner unlocking rod 22. A sealing sleeve 17 is provided in the groove at the base at the bottom of the outer door panel, and the outer lever of the outer door panel is inserted into the large lock tongue sliding hole of the large lock tongue through the sealing sleeve of the base. A battery box is provided on the other side of the bottom of the pressure plate assembly, and the battery box is connected to the PCB board assembly through a circuit.

[0027] The small lock tongue is the first small lock tongue 14, the motor is the shaft motor 16, the toothed disc clutch mechanism includes a rotating sliding toothed disc 13 and an inner toothed disc 15, the toothed disc clutch mechanism is installed in the housing through the inner toothed disc, the transmission shaft of the shaft motor is connected to the center hole of the inner toothed disc in the rotating sliding toothed disc, the disc surface of the inner toothed disc is provided with elastic deformation holes distributed at equal intervals, and at least one side of the outer diameter of the inner toothed disc is provided with a protruding brake head, and the brake head of the inner toothed disc is wedged in the inner tooth grooves distributed at equal intervals on the inner diameter of the rotating sliding toothed disc; the outer diameter of the shaft of the manual unlocking lever in the housing is provided with a first inner manual unlocking tongue 20, one side of the first inner manual unlocking tongue is protruding and hinged with one end of the unlocking connecting rod 6, the other end of the unlocking connecting rod is hinged with the first pin at one end of the top of the rotating sliding toothed disc, and the second pin at the other end of the top of the rotating sliding toothed disc is inserted into the small lock tongue sliding hole of the first small lock tongue. The outer diameter of the rotating sliding toothed disc is provided with protruding limit columns 1301 on both sides, and the housing or the bottom of the base corresponding to at least one side of the limit column is provided with a limit rib. The transmission shaft of the rotating shaft motor is bent at 90 degrees and extended to be connected with the center hole of the inner gear disk in the rotating sliding gear disk.

[0028] The unlocking plate of the RV lock adopts an anti-slip tooth structure, that is, the internal sliding tooth anti-slip structure of the rotating sliding tooth plate and the inner tooth plate is used to prevent the motor from being blocked. The shaft motor drives the rotating sliding tooth plate to drag out or retract the first small lock tongue. The first inner unlocking rod is connected to the first inner manual unlocking tongue through the unlocking connecting rod, and the manual unlocking is linked. Therefore, after the first small lock tongue is unlocked, the dead point of retreat is prevented by limiting, and the mechanical key is provided with a space design when the inner door panel is unlocked.

[0029] Unlocking process: send a command to the shaft motor to reverse, the shaft motor reverses to drive the rotating sliding tooth plate to rotate, dragging the first small lock tongue to rotate; after the first small lock tongue rotates to the position, the rotating sliding tooth plate is limited and stuck, completing the electric unlocking action.

[0030] Locking process: send a command to the shaft motor to rotate forward, the shaft motor rotates forward to drive the rotating sliding gear plate to rotate, dragging the first small lock tongue to rotate; after the first small lock tongue rotates to the locking position, the rotating sliding gear plate is limited and stuck, completing the electric locking action.

[0031] Manual switch lock or mechanical lock core switch lock: manually rotate the first inner unlocking rod, the unlocking connecting rod drags the rotating sliding tooth plate to rotate, and the rotating sliding tooth plate drags the first small lock tongue to rotate or rise; after the first small lock tongue rotates to the switch lock position, the rotating sliding tooth plate is limited and stuck, completing the function of manual switch.

[0032] According to the structural features of the above embodiment 1, on the basis of embodiment 1, as Figure 9-11In the second embodiment shown, the small lock tongue is a second small lock tongue 24, the motor is a worm motor 29, the ratchet clutch mechanism includes a manual clutch rod 25, a clutch protective cover 26, a clutch compression spring 27 and a clutch gear 28, the ratchet clutch mechanism is installed in the housing through the clutch protective cover, the clutch gear and the manual clutch rod are simultaneously fixed to the outer diameter of the shaft of the manual unlocking rod in the housing, and the shaft of the manual unlocking rod is inserted and fixed to the clutch protective cover, and the outer diameter of the shaft of the manual unlocking rod in the clutch protective cover at the sleeve is provided with a clutch spring, and the clutch gear The fitting part of the wheel and the top of the manual clutch lever is respectively provided with protruding meshing and equally spaced ratchets; a rod portion 2501 is provided on one side of the bottom of the manual clutch lever, and the rod portion of the manual clutch lever is connected to one end of the second inner manual unlocking tongue 23 through an arc hole on one side of the clutch protective cover and a small lock tongue sliding hole of the second small lock tongue, and the other end of the second inner manual unlocking tongue extends out of the pressure plate assembly and is connected to the second inner unlocking rod 22, and the worm on one side of the transmission shaft of the worm motor is meshed with the clutch gear extending out of the clutch protective cover, and the clutch gear is a worm gear. The worm motor is vertically arranged on the inner wall on the other side of the housing that is symmetrical to the small lock tongue and the large lock tongue extending out of the housing.

[0033] The unlocking plate of the RV lock adopts a ratchet structure, and the internal worm structure and thorn structure are used to prevent the motor from stalling. The second inner unlocking rod is connected to the second inner manual unlocking tongue, and the manual electric structure is linked. That is, the worm at the transmission shaft of the worm motor drives the clutch gear to rotate, dragging the second small lock tongue to open or close, and the second inner unlocking rod realizes the switch lock through the clutch gear.

[0034] Unlocking process: send a command to the worm motor to reverse, the worm motor reverses to drive the clutch gear to rotate, and drags the second small lock tongue to rotate; after the second small lock tongue rotates to the position, the shaft of the manual unlocking lever is limited to the arc hole of the clutch protective cover and stuck, completing the electric unlocking action.

[0035] Locking process: send a command to the rotating shaft worm to rotate forward, the worm motor rotates forward to drive the rotating sliding gear plate to rotate, and drags the second small lock tongue to rotate; after the second small lock tongue rotates to the locked position, the shaft of the manual unlocking lever is limited to the arc hole of the clutch protective cover and stuck, completing the electric locking action.

[0036] Manual switch lock or mechanical lock core switch lock: manually rotate the second inner unlocking rod, the unlocking connecting rod drags the shaft of the manual unlocking rod to rotate, and the shaft of the manual unlocking rod drags the second small lock tongue to rotate or rise; after the second small lock tongue rotates to the switch lock position, the shaft of the manual unlocking rod is limited to the arc hole of the clutch protective cover and stuck, completing the function of the manual switch.

[0037] The first small lock tongue of the above-mentioned embodiment 1 and the second small lock tongue of the embodiment 2 are in the unlocked state. By rotating the outward-opening door panel or the inward-opening door panel, the large lock tongue can be unlocked to open the RV door.

[0038] To sum up, the RV lock realizes that when it is mechanically unlocked from outside the vehicle, it is unlocked by turning forward 90 degrees and locked by turning reverse 90 degrees, the key is pulled out in the middle, and the lock core does not rotate during electric unlocking; when it is mechanically unlocked from inside the vehicle, it is unlocked by turning forward 90 degrees and locked by turning reverse 90 degrees, and it will not be affected by key remote control unlocking or password electronic unlocking in any state; when it is unlocked with the remote control key, it is electrically unlocked by the remote control key, and the lock tongue cannot be pushed in after unlocking.

Claims

1. A motor vehicle lock with a connecting rod structure for preventing motor stalling, wherein a cover (7) is provided between a base (4) and a pressure plate assembly (8) of the motor vehicle lock, an outward-opening door panel (18) is provided in a groove on one side of the top of the base, one side of the outward-opening door panel is hingedly fixed to the base and is turned over, a password key assembly is provided on the other symmetrical side of the top of the base, the password key assembly comprises a password key (2) and a key PCB board (3), an inward-opening door panel (9) is provided on one side of the bottom of the pressure plate assembly on one side of the outward-opening door panel, one side of the inward-opening door panel is hingedly fixed to the pressure plate assembly and is turned over, a motor, a small lock tongue, a large lock tongue (11) and a PCB board assembly (12), and a toothed disc clutch mechanism or a ratchet clutch mechanism are provided in the cover, the key PCB board and the motor are connected to the PCB board assembly through a circuit, one end of the small lock tongue and the large lock tongue protrudes out of one side of the cover, and the large lock tongue in the cover is A large lock tongue spring (10) is provided at the other end, and an inner lever (901) on the flipping side of the inner opening door panel is inserted into the large lock tongue sliding hole (1101) at one end of the lock tongue spring on the large lock tongue through the pressure plate assembly. At the same time, an outer lever (1801) on the flipping side of the outer opening door panel is inserted into the large lock tongue sliding hole at one end of the lock tongue spring on the large lock tongue through the base; a first lock core assembly (1) is provided at the base on one side of the outer opening door panel or the password button assembly, and a lock core at one end of the first lock core assembly extending from the bottom of the base is connected to one end of a manual unlocking rod (5) in the cover shell, and a shaft portion at the other end of the manual unlocking rod extends from the pressure plate assembly to be connected to a first inner unlocking rod (21), or a shaft portion at the other end of the manual unlocking rod is connected to a ratchet clutch mechanism, and a second inner manual unlocking tongue (23) of the clutch mechanism extending from the pressure plate assembly is connected to a second inner unlocking rod (22); it is characterized in that The small lock tongue is a first small lock tongue (14), the motor is a rotating shaft motor (16), the toothed disc clutch mechanism comprises a rotating sliding toothed disc (13) and an inner toothed disc (15), the toothed disc clutch mechanism is installed in the housing (7) through the inner toothed disc, the transmission shaft of the rotating shaft motor is connected to the center hole of the inner toothed disc in the rotating sliding toothed disc, the disc surface of the inner toothed disc is provided with elastic deformation holes distributed at equal intervals, at least one side of the outer diameter of the inner toothed disc is provided with a protruding brake head, the brake head of the inner toothed disc is wedged into the inner tooth grooves distributed at equal intervals on the inner diameter of the rotating sliding toothed disc; the outer diameter of the shaft portion of the manual unlocking lever (5) in the housing is provided with a first inner manual unlocking tongue (20), one side of the first inner manual unlocking tongue is protruding and is hinged to one end of the unlocking connecting rod (6), the other end of the unlocking connecting rod is hinged to a first pin at one end of the top of the rotating sliding toothed disc, and a second pin at the other end of the top of the rotating sliding toothed disc is inserted into the small lock tongue sliding hole of the first small lock tongue.

2. The motor vehicle lock with a connecting rod structure for preventing motor stalling according to claim 1 is characterized in that Protruding limiting columns (1301) are respectively provided on both sides of the outer diameter of the rotating sliding gear disc (13), and limiting ribs are provided inside the cover shell (7) or at the bottom of the base (4) corresponding to at least one of the limiting columns.

3. The motor vehicle lock with a connecting rod structure for preventing motor stalling according to claim 1 is characterized in that The transmission shaft of the rotating shaft motor (16) is bent at 90 degrees and extends out to be connected to the center hole of the inner gear disk (15) in the rotating sliding gear disk (13).

4. The motor vehicle lock with a connecting rod structure for preventing motor stalling according to claim 1 is characterized in that The small lock tongue is a second small lock tongue (24), the motor is a worm motor (29), the ratchet clutch mechanism comprises a manual clutch rod (25), a clutch protective cover (26), a clutch compression spring (27) and a clutch gear (28), the ratchet clutch mechanism is installed in the housing (7) through the clutch protective cover, the clutch gear and the manual clutch rod are simultaneously fixed to the outer diameter of the shaft of the manual unlocking rod (5) in the housing, the shaft of the manual unlocking rod is inserted and fixed to the clutch protective cover, the outer diameter of the shaft of the manual unlocking rod in the clutch protective cover at the sleeve position is provided with a clutch spring, and the clutch The contacting parts of the gear and the top of the manual clutch lever are respectively provided with protruding meshing and equally spaced ratchet teeth; a rod portion (2501) is provided on one side of the bottom of the manual clutch lever, and the rod portion of the manual clutch lever is connected to one end of the second inner manual unlocking tongue (23) through an arc-shaped hole on one side of the clutch protective cover and a small lock tongue sliding hole of the second small lock tongue, and the other end of the second inner manual unlocking tongue extends out of the pressure plate assembly (8) and is connected to the second inner unlocking lever (22), and a worm on one side of the transmission shaft of the worm motor is meshed with a clutch gear extending out of one side of the clutch protective cover, and the clutch gear is a worm gear.

5. The motor vehicle lock with a connecting rod structure for preventing motor stalling according to claim 4 is characterized in that The worm motor (29) is vertically arranged on the inner wall of the housing (7) at the other side symmetrical to the protruding ends of the small lock tongue and the large lock tongue (11).

6. The motor vehicle lock with a connecting rod structure for preventing motor stalling according to claim 1 is characterized in that A battery box is provided on the other side of the bottom of the pressure plate assembly (8), and the battery box is connected to the PCB board assembly (12) via a circuit.

7. The motor vehicle lock with a connecting rod structure for preventing motor stalling according to claim 1 is characterized in that A sealing sleeve (17) is provided in a groove at the base (4) at the bottom of the outward-opening door panel (18), and an outer lever (1801) of the outward-opening door panel (18) is inserted into a large lock tongue sliding hole (1101) of the large lock tongue (11) through the sealing sleeve of the base.

8. The motor vehicle lock with a connecting rod structure for preventing motor stalling according to claim 1 is characterized in that The outward-opening door panel (18) is provided with a second lock core assembly (19), and a lock core extending from the bottom of the second lock core assembly is buckled and locked with a lock frame in the outward-opening door panel.

9. The motor vehicle lock with a connecting rod structure for preventing motor stalling according to claim 1 is characterized in that The PCB board assembly (12) is provided with an electric remote control module, and the electric remote control module is unlocked by wireless connection through a key remote controller.

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