Car front door self-priming lock and car rear door self-priming lock

Abstract

The utility model discloses a self-priming lock for a front side door of an automobile, comprising a self-priming closing arm, which is rotatably connected between an upper shell body and a lower shell body; further comprising a first motor, which is mounted on the lower shell body, and a first worm is fixed to an output end of the first motor; a helical gear unlocking stop arm is also rotatably connected between the upper shell body and the lower shell body, and the outer periphery of the helical gear unlocking stop arm has first helical teeth that can mesh with the first worm; a central control unlocking stop link is slidably connected to the lower shell body, and the central control unlocking stop link has a coupling end, and correspondingly, a pushing part is arranged on the outer periphery of the helical gear unlocking stop arm, and when unlocking, the coupling end can apply a thrust to the pushing part, so that the helical gear unlocking stop arm rotates to the unlocking position, thereby realizing central control unlocking; the utility model solves the technical problems in the prior art that the self-priming lock for the side door of an automobile has many parts and is complicated to assemble, thereby causing high cost, many failure points, and high maintenance frequency.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, in particular to a self-priming lock for a front side door of an automobile and a self-priming lock for a rear side door of an automobile. Background Art

[0002] At present, the self-priming locks of automobile side doors usually adopt mechanical transmission structures for unlocking or locking, and the most common one is the combination of ratchet and pawl.

[0003] However, the mechanical transmission structure inside the traditional automobile front side door self-priming lock system usually includes multiple parts. The assembly process between these parts is relatively cumbersome, which makes the assembly process complicated. The large number of parts increases the time and cost of production and assembly, resulting in higher overall costs. In addition, due to the large number of parts, precise alignment and adjustment are required during assembly, which increases the difficulty of assembly. In addition, the complex structural design also increases the number of failure points. Once a failure occurs, the maintenance work is relatively difficult due to the complex structure, which increases the frequency and cost of maintenance.

[0004] Therefore, in order to solve these problems, it is necessary to improve the structure of the front side door self-priming lock or the rear side door self-priming lock of the car, simplify the number of parts and optimize the assembly process as much as possible, aiming to reduce costs, reduce failure points and simplify the maintenance process. Utility Model Content

[0005] The utility model aims to provide a self-priming lock for the front side door of an automobile and a self-priming lock for the rear side door of an automobile, so as to solve the technical problems in the prior art that the self-priming lock for the side door of an automobile has many parts and is complicated to assemble, thus causing high cost, many failure points and high maintenance frequency.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] In a first aspect, the utility model discloses a self-priming lock for a front side door of an automobile, comprising a self-priming arm, wherein the self-priming arm is elastically hinged between an upper shell and a lower shell, and the self-priming arm is rotated to unlock or lock the front side door of the automobile;

[0008] The automobile front side door self-priming lock further includes a first motor, which is mounted on the lower housing, and a first worm is fixed to the output end of the first motor, and the first motor can drive the first worm to rotate forward or reversely;

[0009] A helical gear unlocking stop arm is rotatably connected between the upper shell and the lower shell. The outer periphery of the helical gear unlocking stop arm has first helical teeth that can mesh with the first worm. When the first worm rotates forward or reversely, the helical gear unlocking stop arm can be driven to rotate forward or reversely through the first helical teeth.

[0010] A central control unlocking stop link is slidably connected to the lower shell body for central control unlocking or locking, and the sliding direction of the central control unlocking stop link is parallel to the rotation surface of the helical gear unlocking stop arm;

[0011] The central control unlocking stop link has a coupling end, and correspondingly, a pushing portion is provided on the outer periphery of the helical gear unlocking stop arm. When unlocking, the coupling end can apply a thrust to the pushing portion to rotate the helical gear unlocking stop arm to the unlocking position, thereby realizing central control unlocking.

[0012] This solution can solve the technical problem that in the prior art, the central control unlocking stop arm of the self-priming lock of the front side door of the car is mostly a split structure, that is, the central control unlocking stop arm and the gear are separated into two independent parts, resulting in many parts in the functional module of the central control unlocking, complicated assembly, and high cost. The helical gear unlocking stop arm in this solution integrates the central control unlocking stop arm and the gear into an integrated structure. When the central control is unlocked or locked, the central control unlocking stop connecting rod moves forward or backward. At the same time, the first motor works to drive the first worm to rotate forward or reverse, thereby driving the helical gear unlocking stop arm to rotate to the unlocking position or the locking position to achieve unlocking or locking.

[0013] As a preferred solution for the self-priming lock of the front side door of a car, a reset damping block is fixed to the side of the bevel gear unlocking stop arm facing the upper shell body, and the reset damping block can rotate with the bevel gear unlocking stop arm. Correspondingly, an upper shell damping boss protrudes on the upper shell body toward the bevel gear unlocking stop arm. When the bevel gear unlocking stop arm rotates, the reset damping block can contact the upper shell damping boss and generate friction, thereby reducing the rotation speed of the bevel gear unlocking stop arm.

[0014] When the helical gear unlocking stop arm is unlocked by the central control, the reset damping block will slightly interfere with the upper shell damping boss to generate friction resistance when it resets to the initial position, thereby reducing the reset speed of the first motor and increasing the reset time, thereby avoiding the switch misjudgment caused by the first motor resetting speed being too fast, and then pre-pressing the self-priming arm, making the front door unable to close or half-closed. The design of the helical gear reset damping block structure greatly reduces the safety hazards in the unlocking stop process.

[0015] As a preferred solution of the self-priming lock for the front side door of the automobile, a safety opening mechanism and a manual unlocking component are also provided in the self-priming lock for the front side door of the automobile, and the safety opening mechanism is transmission-connected with the manual unlocking component;

[0016] The manual unlocking assembly includes an inner unlocking link, an inner opening arm, an outer opening arm and an opening linkage arm;

[0017] The inner opening arm is rotatably connected to the base and the bottom plate at the same time, the inner opening arm is transmission-connected to the inner unlocking link, and the inner unlocking link is elastically hinged to the upper shell; the inner unlocking link is used to be transmission-connected to the inner door handle of the vehicle door, and pulling the inner door handle can pull the inner unlocking link to rotate, thereby driving the inner opening arm to rotate;

[0018] The outer opening arm is used for transmission connection with the outer door handle of the vehicle door. Pulling the outer door handle can pull the outer opening arm to rotate. The outer opening arm is also rotationally connected with the base and the bottom plate.

[0019] The opening linkage arm is coaxially arranged with the outer opening arm, the inner opening arm and the outer opening arm are respectively in contact with two sides of the opening linkage arm, and when manual unlocking is not performed, the inner opening arm and the outer opening arm have torques in opposite directions;

[0020] The safety opening mechanism comprises a first safety opening arm and a second safety opening arm elastically hinged to the base respectively;

[0021] A first waist hole is formed at one end of the first safety opening arm, an unlocking arm is extended outward from one side of the opening linkage arm, a first rivet shaft is fixed to the extended end of the unlocking arm, and the first rivet shaft is slidably connected to the first waist hole;

[0022] The second safety opening arm is provided with a third rivet shaft. When the first safety opening arm rotates, the third rivet shaft can be pushed and the second safety opening arm can be driven to rotate, so that the second safety opening arm has a torque in the opposite direction of rotation of the first safety opening arm and drives the first safety opening arm to reset.

[0023] The working principle and process of the safety opening function are as follows: when the power is cut off or the motor is damaged during the closing process, the self-priming closing arm stops. At this time, if the door handle on the inside of the car door is pulled, the inner opening arm can be driven to rotate. Then the second rivet shaft on the inner opening arm can drive the pawl self-priming closing arm to rotate, and then drive the pawl to rotate to achieve unlocking;

[0024] At this time, if the door handle on the outside of the car door is pulled, the outer opening arm can be driven to rotate, which in turn drives the opening linkage arm to rotate, and then drives the inner opening arm to rotate accordingly; then the second rivet shaft on the inner opening arm can drive the pawl self-suction arm to rotate, and then drives the pawl to rotate to achieve unlocking;

[0025] When manual unlocking is not performed, the first safety opening arm has an initial directional torque; during the unlocking process, due to the sliding connection between the first rivet shaft and the first waist hole on the first safety opening arm, the opening linkage arm can be limited in rotation angle by the first safety opening arm when rotating, which can avoid the separation of the opening linkage arm and the inner opening arm. After the unlocking is completed, since the second safety opening arm has a torque in the opposite direction of rotation to the first safety opening arm, the second safety opening arm is reset and drives the first safety opening arm to reset; then the third rivet shaft is separated from the first safety opening arm, the first safety opening arm is reset, and at the same time, the first rivet shaft and the opening linkage arm are driven to reset, and finally the inner opening arm, the inner unlocking link and the outer opening arm are reset.

[0026] The safety opening mechanism is used to ensure that the vehicle door can be opened manually when manual unlocking is required due to a sudden power outage or motor damage during the attraction process. During the manual unlocking process, the inner opening arm and the outer opening arm are key components directly involved in the unlocking action, and the safety opening arm serves as an auxiliary mechanism to ensure that the manual unlocking process can still proceed smoothly when the electronic system fails, and that the side door lock can still be manually unlocked safely without damaging its own structure and drive various components to work and reset, thereby improving the safety and reliability of the vehicle.

[0027] In a second aspect, the utility model further discloses a self-priming lock for a rear side door of an automobile, comprising a self-priming closing arm, wherein the self-priming closing arm is elastically hinged between an upper shell and a lower shell, and the self-priming closing arm is rotated to realize unlocking or locking of the rear side door of the automobile;

[0028] The automobile rear door self-priming lock further includes a first motor, which is mounted on the lower housing, and a first worm is fixed to the output end of the first motor, and the first motor can drive the first worm to rotate forward or reversely;

[0029] A helical gear unlocking stop arm is rotatably connected between the upper shell and the lower shell. The outer periphery of the helical gear unlocking stop arm has first helical teeth that can mesh with the first worm. When the first worm rotates forward or reversely, the helical gear unlocking stop arm can be driven to rotate forward or reversely through the first helical teeth.

[0030] A central control unlocking stop link is slidably connected to the lower shell body for central control unlocking or locking, and the sliding direction of the central control unlocking stop link is parallel to the rotation surface of the helical gear unlocking stop arm;

[0031] The central control unlocking stop link has a coupling end, and correspondingly, a pushing portion is provided on the outer periphery of the helical gear unlocking stop arm. When unlocking, the coupling end can apply a thrust to the pushing portion to rotate the helical gear unlocking stop arm to the unlocking position, thereby realizing central control unlocking.

[0032] This solution can solve the technical problem in the prior art that the central control unlocking stop arm of the self-priming lock of the rear side door of the car is mostly a split structure, that is, the central control unlocking stop arm and the gear are separated into two independent parts, resulting in many parts in the functional module of the central control unlocking, cumbersome assembly and high cost.

[0033] The helical gear unlocking stop arm in this scheme integrates the central control unlocking stop arm and the gear into an integrated structure. When the central control is unlocked or locked, the first motor works to drive the first worm gear to rotate forward or reverse, thereby driving the helical gear unlocking stop arm to rotate, so that the pushing part pushes the coupling end, causing the central control unlocking stop link to move forward or backward to realize the central control unlocking stop action.

[0034] As a preferred solution for the self-priming lock of the rear side door of a car, a reset damping block is fixed on the side of the bevel gear unlocking stop arm facing the upper shell body, and the reset damping block can rotate with the bevel gear unlocking stop arm. Correspondingly, an upper shell damping boss protrudes on the upper shell body toward the bevel gear unlocking stop arm. When the bevel gear unlocking stop arm rotates, the reset damping block can contact the upper shell damping boss and generate friction, thereby reducing the rotation speed of the bevel gear unlocking stop arm.

[0035] When the helical gear unlocking stop arm is unlocked by the central control, the reset damping block will slightly interfere with the upper shell damping boss to generate friction resistance when it resets to the initial position, thereby reducing the reset speed of the first motor and increasing the reset time, thereby avoiding the switch misjudgment caused by the first motor resetting speed being too fast, and then pre-pressing the self-priming arm, making the front door unable to close or half-closed. The design of the helical gear reset damping block structure greatly reduces the safety hazards in the unlocking stop process.

[0036] For the rear side doors, a child safety function module needs to be added to the rear side door locks to prevent children from accidentally touching the door while driving when sitting in the back seat, which may cause safety accidents. Currently, electric child safety devices are preferred because they are easy to operate and do not require a separate mechanical car key for manual mechanical operation. However, the current electric child safety transmission structure of the side door self-priming lock is mostly a conventional cam lever structure with many parts and complicated assembly, resulting in high cost, many failure points and high maintenance frequency. In order to solve the above technical problems, the electric child safety structure in the rear side door self-priming lock structure is improved.

[0037] As a preferred solution of the rear door self-priming lock of the automobile, an electric child-proof structure is also provided in the rear door self-priming lock of the automobile, and the electric child-proof structure is installed between the upper shell and the lower shell, and includes a second motor, a second worm is fixed to the output end of the second motor, and a helical gear transmission arm is elastically hinged on the lower shell;

[0038] The helical gear transmission arm comprises a helical gear end and a transmission end, and the transmission end is transmission-connected to the first end of the child-protection connecting rod;

[0039] The child protection connecting rod is also provided with a second end, the second end is provided with a second waist hole, the second waist hole is slidably connected to the rotating shaft of the self-priming arm, and the first end is located between the second end and the third end;

[0040] A stop hook is fixed to the third end, and a through hole is provided on the corresponding self-priming arm, and the stop hook passes through the through hole; when the child safety lock is used, the helical transmission arm rotates so that the rotation axis of the self-priming arm is located at the end of the second waist hole close to the second end. At this time, the second waist hole and the stop hook can simultaneously apply force to the self-priming arm at the through hole to prevent the self-priming arm from rotating toward the unlocking position, thereby realizing the child safety lock.

[0041] This solution adopts a new integrated gear transmission arm structure. The second worm is fixed on the second motor shaft, and the helical gear and the transmission arm are designed together and can rotate around the pin. The unlocking and locking functions of the electric child protection arm are realized through the forward and reverse rotation of the second motor, and the unlocking and locking signals are transmitted to the BCM through the micro switch. This structure simplifies the assembly of parts, saves assembly time, and reduces weight. The design of the integrated transmission arm greatly reduces the product development cost.

[0042] As a preferred solution of the electric child-safety structure, the electric child-safety structure further comprises a child-safety unlocking torsion-stop spring, and the two ends of the child-safety unlocking torsion-stop spring are respectively fixed to the helical gear transmission arm and the lower housing;

[0043] When the child safety is locked, the child safety unlocking torsion spring is compressed and deformed, and has elastic potential energy. When the child safety is unlocked, the child safety unlocking torsion spring releases the elastic potential energy, so that the child safety connecting rod is reset.

[0044] As a preferred solution for the electric child safety structure, a micro switch is also installed on the lower shell, and the sensing end of the micro switch can contact the helical gear transmission arm; it is used to transmit forward and reverse rotation signals to the second motor to achieve unlocking and locking of the child safety.

[0045] As a preferred solution of the rear door self-priming lock of the automobile, a safety opening mechanism and a manual unlocking component are also provided in the rear door self-priming lock of the automobile, and the safety opening mechanism is transmission-connected with the manual unlocking component;

[0046] The manual unlocking assembly includes an inner unlocking link, an inner opening arm, an outer opening arm and an opening linkage arm;

[0047] The inner opening arm is rotatably connected to the base and the bottom plate at the same time, the inner opening arm is transmission-connected to the inner unlocking link, and the inner unlocking link is elastically hinged to the upper shell; the inner unlocking link is used to be transmission-connected to the inner door handle of the vehicle door, and pulling the inner door handle can pull the inner unlocking link to rotate, thereby driving the inner opening arm to rotate;

[0048] The outer opening arm is used for transmission connection with the outer door handle of the vehicle door. Pulling the outer door handle can pull the outer opening arm to rotate. The outer opening arm is also rotationally connected with the base and the bottom plate.

[0049] The opening linkage arm is coaxially arranged with the outer opening arm, the inner opening arm and the outer opening arm are respectively in contact with two sides of the opening linkage arm, and when manual unlocking is not performed, the inner opening arm and the outer opening arm have torques in opposite directions;

[0050] The safety opening mechanism comprises a first safety opening arm and a second safety opening arm elastically hinged to the base respectively;

[0051] A first waist hole is formed at one end of the first safety opening arm, an unlocking arm is extended outward from one side of the opening linkage arm, a first rivet shaft is fixed to the extended end of the unlocking arm, and the first rivet shaft is slidably connected to the first waist hole;

[0052] The second safety opening arm is provided with a third rivet shaft. When the first safety opening arm rotates, the third rivet shaft can be pushed and the second safety opening arm can be driven to rotate, so that the second safety opening arm has a torque in the opposite direction of rotation of the first safety opening arm and drives the first safety opening arm to reset.

[0053] The safety opening mechanism is used to ensure that the rear door can be opened manually when manual unlocking is required due to a sudden power outage or motor damage during the attraction process. During the manual unlocking process, the inner opening arm and the outer opening arm are key components directly involved in the unlocking action, and the safety opening arm serves as an auxiliary mechanism to ensure that the manual unlocking process can still proceed smoothly when the electronic system fails, and that the side door lock can still be manually unlocked safely without damaging its own structure and drive various components to work and reset, thereby improving the safety and reliability of the vehicle.

[0054] The technical solution of the utility model has the following beneficial effects: in the automobile front side door self-priming lock and the automobile rear side door self-priming lock disclosed by the utility model, the helical gear unlocking stop arm is used to integrate the central control unlocking stop arm and the gear into an integrated structure. When the central control is unlocked or locked, the first motor works to drive the first worm gear to rotate forward or reverse, thereby driving the helical gear unlocking stop arm to rotate, so that the pushing part pushes the coupling end, so that the central control unlocking stop connecting rod moves forward or backward to realize the central control unlocking stop action, which can simplify the assembly of parts, save assembly time, and reduce the weight of the lock body itself, and solves the technical problems in the prior art that the automobile side door self-priming lock has many parts and complicated assembly, thereby causing high cost, many failure points, and high maintenance frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0056] Figure 1 The utility model is a diagram showing the overall external structure of the self-priming lock for the front side door of an automobile.

[0057] Figure 2 The utility model is a diagram showing the internal structure of the self-priming lock for the front side door of an automobile.

[0058] Figure 3 The utility model is an assembly diagram of various components of the central control unlocking of the self-priming lock of the front side door of the automobile.

[0059] Figure 4 The utility model is a schematic diagram of the ratchet and pawl matching structure of the automobile front side door self-priming lock and the automobile rear side door self-priming lock.

[0060] Figure 5 The utility model is a diagram showing the internal structure of the upper shell of the automobile front side door self-priming lock and the automobile rear side door self-priming lock.

[0061] Figure 6 The utility model is a schematic diagram of the safety opening mechanism structure of the automobile front side door self-priming lock and the automobile rear side door self-priming lock.

[0062] Figure 7 It is a schematic structural diagram of the perspective conversion of the safety opening mechanism of the automobile front side door self-priming lock and the automobile rear side door self-priming lock of the utility model.

[0063] Figure 8 The utility model is a schematic diagram of the transmission structure of the inner unlocking connecting rod and the inner opening arm of the automobile front side door self-priming lock and the automobile rear side door self-priming lock.

[0064] Fig. 9 The utility model is a diagram showing the overall external structure of the automobile rear side door self-priming lock.

[0065] Fig.10 The utility model is a diagram showing the internal structure of the self-priming lock for the rear side door of an automobile.

[0066] Fig.11 The utility model is a schematic diagram of the structure of an electric child care device.

[0067] Fig.12 It is a schematic diagram of the locked state of the electric child protection structure of the utility model.

[0068] Description of reference numerals: 101, upper shell; 102, lower shell; 103, bottom plate; 104, base; 105, upper shell damping boss; 201, ratchet; 202, pawl; 203, transmission connecting rod; 301, first motor; 302, first worm; 303, central control unlocking stop connecting rod; 304, coupling end; 305, helical gear unlocking stop arm; 306, first helical gear; 307, pushing part; 308, first pin shaft; 309, self-priming arm; 310, reset damping block; 401, inner opening arm; 402, second rivet shaft; 403, inner unlocking connecting rod; 404, Open linkage arm; 405, unlocking arm; 406, first rivet shaft; 407, outer opening arm; 408, first safety opening arm; 409, first waist hole; 410, second safety opening arm; 411, third rivet shaft; 501, second motor; 502, second worm; 503, helical gear transmission arm; 504, helical gear end; 505, transmission end; 506, second helical gear; 507, micro switch; 508, child-proof unlocking torsion spring; 509, child-proof connecting rod; 510, first end; 511, second end; 512, second waist hole; 513, third end; 514, stop hook. DETAILED DESCRIPTION

[0069] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of the automobile front side door self-priming lock and the automobile rear side door self-priming lock of the utility model in conjunction with the accompanying drawings.

[0070] The utility model can be applied to the field of self-priming locks for front side doors or rear side doors of automobiles, and solves the technical problems in the prior art that the self-priming locks for side door of automobiles have many parts and are complicated to assemble, thus causing high costs, many failure points and high maintenance frequency.

[0071] In a first aspect, the utility model discloses a self-priming lock for a front side door of an automobile, and the following are specific embodiments.

[0072] See also Figures 1 to 4 The self-priming lock for the front side door of the automobile includes a self-priming arm 309, which is elastically hinged between the upper shell 101 and the lower shell 102. The self-priming arm 309 is rotated to unlock or lock the front side door of the automobile;

[0073] The self-priming lock for the front side door of the automobile also includes a ratchet 201 and a pawl 202, and the ratchet 201 and the pawl 202 are elastically hinged on the bottom plate 103 respectively. When the self-priming lock for the front side door of the automobile is locked, the pawl 202 can prevent the ratchet 201 from rotating and keep the ratchet 201 in the locked position; a transmission connecting rod 203 is inserted into the pawl 202, and the transmission connecting rod 203 is in contact with the self-priming arm 309. When the bevel tooth unlocking stop arm 305 rotates, it can drive the self-priming arm 309 to rotate, so as to achieve the unlocking or locking of the front side door of the automobile.

[0074] For details, please refer to Figure 4 The ratchet wheel 201 and the pawl 202 are respectively elastically hinged on the bottom plate 103, which means that the ratchet wheel 201 and the pawl 202 are respectively rotatably connected to the bottom plate 103 through a rotating shaft, and a return spring is sleeved on each corresponding rotating shaft.

[0075] The automobile front side door self-priming lock further includes a first motor 301, which is mounted on the lower housing 102, and a first worm 302 is fixed to the output end of the first motor 301, and the first motor 301 can drive the first worm 302 to rotate forward or reverse;

[0076] A helical gear unlocking stop arm 305 is also rotatably connected between the upper housing 101 and the lower housing 102. The outer periphery of the helical gear unlocking stop arm 305 has first helical teeth 306 that can mesh with the first worm 302. When the first worm 302 rotates forward or reversely, the helical gear unlocking stop arm 305 can be driven to rotate forward or reversely through the first helical teeth 306.

[0077] The lower housing 102 is slidably connected with a central control unlocking stop link 303 for central control unlocking or locking, and the sliding direction of the central control unlocking stop link 303 is parallel to the rotation surface of the helical gear unlocking stop arm 305;

[0078] The central control unlocking stop link 303 has a coupling end 304, and correspondingly, the outer periphery of the helical gear unlocking stop arm 305 is provided with a pushing portion 307. When unlocking, the coupling end 304 can apply a thrust to the pushing portion 307 to rotate the helical gear unlocking stop arm 305 to the unlocking position, thereby realizing central control unlocking.

[0079] This solution can solve the technical problem that in the prior art, the central control unlocking stop arm of the self-priming lock of the front side door of the car is mostly a split structure, that is, the central control unlocking stop arm and the gear are separated into two independent parts, resulting in many parts in the functional module of the central control unlocking, complicated assembly, and high cost. The helical gear unlocking stop arm 305 in this solution integrates the central control unlocking stop arm and the gear into an integrated structure. When the central control is unlocked or locked, the central control unlocking stop link 303 moves forward or backward. At the same time, the first motor 301 works to drive the first worm 302 to rotate forward or reverse, thereby driving the helical gear unlocking stop arm 305 to rotate to the unlocking position or the locking position to achieve unlocking or locking.

[0080] Specifically, as one of the implementation methods of driving the self-priming arm 309 to rotate when the bevel gear unlocking stop arm 305 rotates, an unlocking end is provided on the outer periphery of the bevel gear unlocking stop arm 305. When the bevel gear unlocking stop arm 305 turns to the unlocking position, the unlocking end can push the self-priming arm 309 to rotate, and then the self-priming arm 309 pushes the transmission connecting rod to rotate toward the unlocking position, and drives the pawl 202 to rotate toward the unlocking position to achieve unlocking; after unlocking, the self-priming arm 309 can be reset under the action of elasticity.

[0081] Specifically, the upper shell 101 and the lower shell 102 are detachably connected via a pin.

[0082] For details, please refer to Figure 1 and Figure 2 A first pin shaft 308 is fixed at the center of the helical gear unlocking stop arm 305 , and both ends of the first pin shaft 308 are rotatably connected to the upper shell 101 and the lower shell 102 at the same time.

[0083] In actual use, since the first motor 301 resets too fast, it may cause the switch to misjudge and pre-press the self-priming arm 309, so that the front door cannot be closed or is closed in a virtual state. In order to solve the technical problem that the helical unlocking stop arm 305 is prone to inaccurate positioning when resetting after the central control is unlocked, resulting in the phenomenon that the door cannot be closed or is closed in a virtual state, thereby causing a personal safety hazard, based on the above technical solution, the structure of the self-priming lock of the front side door of the car is optimized. Please refer to Figures 3 to 5 A reset damping block 310 is fixed to the side of the helical gear unlocking stop arm 305 facing the upper shell 101, and the reset damping block 310 can rotate along with the helical gear unlocking stop arm 305. Correspondingly, an upper shell damping boss 105 protrudes on the upper shell 101 toward the helical gear unlocking stop arm 305. When the helical gear unlocking stop arm 305 rotates, the reset damping block 310 can contact the upper shell damping boss 105 and generate friction, thereby reducing the rotation speed of the helical gear unlocking stop arm 305.

[0084] When the bevel gear unlocking stop arm 305 is unlocked by the central control, the reset damping block 310 will slightly interfere with the upper shell damping boss 105 to generate friction resistance when it resets to the initial position, thereby reducing the reset speed of the first motor 301 and increasing the reset time. The design of the bevel gear reset damping block 310 structure greatly reduces the safety hazards in the unlocking stop process.

[0085] As the preferred solution for the front side door self-priming lock of the car, please refer to Figures 6 to 8 The self-priming lock of the front side door of the automobile is also provided with a safety opening mechanism and a manual unlocking component, and the safety opening mechanism is transmission-connected with the manual unlocking component;

[0086] The manual unlocking assembly includes an inner unlocking link 403, an inner opening arm 401, an outer opening arm 407 and an opening linkage arm 404;

[0087] The inner opening arm 401 is rotatably connected to the base 104 and the bottom plate 103 at the same time, and the inner opening arm 401 is transmission-connected to the inner unlocking link 403, and the inner unlocking link 403 is elastically hinged to the upper shell 101; the inner unlocking link 403 is used for transmission connection with the inner door handle of the vehicle door, and pulling the inner door handle can pull the inner unlocking link 403 to rotate, thereby driving the inner opening arm 401 to rotate;

[0088] The outer opening arm 407 is used for transmission connection with the outer door handle of the vehicle door. Pulling the outer door handle can pull the outer opening arm 407 to rotate. The outer opening arm 407 is also rotationally connected to the base 104 and the bottom plate 103;

[0089] The opening linkage arm 404 is coaxially arranged with the outer opening arm 407, the inner opening arm 401 and the outer opening arm 407 are respectively in contact with two sides of the opening linkage arm 404, and when manual unlocking is not performed, the inner opening arm 401 and the outer opening arm 407 have torques in opposite directions;

[0090] The safety opening mechanism comprises a first safety opening arm 408 and a second safety opening arm 410 elastically hinged to the base respectively;

[0091] A first waist hole 409 is formed at one end of the first safety opening arm 408, and an unlocking arm 405 is extended outward from one side of the opening linkage arm 404. A first rivet shaft 406 is fixed to the extended end of the unlocking arm 405, and the first rivet shaft 406 is slidably connected to the first waist hole 409;

[0092] The second safety opening arm 410 is provided with a third rivet shaft 411. When the first safety opening arm 408 rotates, it can push the third rivet shaft 411 and drive the second safety opening arm 410 to rotate, so that the second safety opening arm 410 has a torque in the opposite direction of rotation of the first safety opening arm 408, and drives the first safety opening arm 408 to reset.

[0093] Specifically, in this embodiment, when the line of sight is facing the inside of the chassis, when manual unlocking is not performed, the inner opening arm 401 has a counterclockwise torque, the outer opening arm 407 has a clockwise torque, and at the same time, the first safety opening arm 408 also has a counterclockwise torque.

[0094] The working principle and process of the safety opening function are as follows: when the power is cut off or the motor is damaged during the closing process, the self-closing arm 309 stops. At this time, if the inner door handle is pulled, the inner opening arm 401 can be driven to rotate, and the second rivet shaft 402 on the inner opening arm 401 can drive the pawl 202 to rotate the self-closing arm 309, thereby driving the pawl 202 to rotate to achieve unlocking;

[0095] At this time, if the outer door handle of the vehicle door is pulled, the outer opening arm 407 can be driven to rotate, thereby driving the opening linkage arm 404 to rotate, and then correspondingly driving the inner opening arm 401 to rotate; the second rivet shaft 402 on the inner opening arm 401 can drive the pawl 202 to rotate the self-absorption arm 309, thereby driving the pawl 202 to rotate, thereby achieving unlocking;

[0096] When manual unlocking is not performed, the first safety opening arm 408 has an initial directional torque; during the unlocking process, due to the sliding connection between the first rivet shaft 406 and the first waist hole 409 on the first safety opening arm 408, the opening linkage arm 404 can be limited in rotation angle by the first safety opening arm 408 when rotating, which can avoid the opening linkage arm 404 and the inner opening arm 401 from being separated. After the unlocking is completed, since the second safety opening arm 410 has a torque in the opposite direction of rotation to the first safety opening arm 408, the second safety opening arm 410 is reset and drives the first safety opening arm 408 to reset; then the third rivet shaft 411 is separated from the first safety opening arm 408, the first safety opening arm 408 is reset, and at the same time, the first rivet shaft 406 and the opening linkage arm 404 are also driven to reset, and finally the inner opening arm 401, the inner unlocking link 403 and the outer opening arm 407 are reset.

[0097] The safety opening mechanism is used to ensure that the vehicle door can be opened manually when manual unlocking is required due to a sudden power outage or motor damage during the attraction process. During the manual unlocking process, the inner opening arm 401 and the outer opening arm 407 are key components directly involved in the unlocking action, and the safety opening arm serves as an auxiliary mechanism to ensure that the manual unlocking process can still proceed smoothly when the electronic system fails, and that the side door lock can still be manually unlocked safely without damaging its own structure and drive various components to work and reset, thereby improving the safety and reliability of the vehicle.

[0098] The use of the automobile front side door self-priming lock disclosed by the utility model has the following technical effects: in the automobile front side door self-priming lock disclosed in this embodiment, the helical gear unlocking stop arm adopts the central control unlocking stop arm and the gear into an integrated structure, when the central control is unlocked or locked, the first motor works to drive the first worm to rotate forward or reverse, and then drives the helical gear unlocking stop arm to rotate, so that the pushing part pushes the coupling end, so that the central control unlocking stop connecting rod moves forward or backward to realize the central control unlocking stop action, which can simplify the assembly of parts, save assembly time, and reduce the weight of the lock body itself, and solves the technical problems in the prior art that the automobile side door self-priming lock has many parts and cumbersome assembly, thereby causing high cost, many failure points, and high maintenance frequency;

[0099] In addition, the front side door self-priming lock of the automobile in this embodiment also adopts the cooperation of the reset damping block and the damping boss of the upper shell, so that when the helical tooth unlocking stop arm is unlocked by the central control, the reset damping block will slightly interfere with the damping boss of the upper shell when it is reset to the initial position to generate friction resistance, thereby reducing the reset speed of the first motor and increasing the reset time, which greatly reduces the safety hazards in the unlocking stop process;

[0100] In addition, the self-priming lock of the front side door of the car in this embodiment also adopts a safe opening mechanism, which can serve as an auxiliary mechanism to ensure that when the electronic system fails, the manual unlocking process can still proceed smoothly, and the side door lock can still be manually unlocked safely without damaging its own structure and drive various components to work and reset, thereby improving the safety and reliability of the vehicle.

[0101] In a second aspect, the utility model also discloses a self-priming lock for a rear side door of an automobile, and the following are specific embodiments.

[0102] See also Fig. 9 and Fig.10 The self-priming lock for the rear side door of the automobile includes a self-priming arm 309, which is elastically hinged between the upper shell 101 and the lower shell 102. The self-priming arm 309 is rotated to unlock or lock the rear side door of the automobile;

[0103] See also Figure 4 The self-priming lock for the rear side door of the automobile also includes a ratchet 201 and a pawl 202, and the ratchet 201 and the pawl 202 are elastically hinged on the bottom plate 103 respectively. When the self-priming lock for the rear side door of the automobile is locked, the pawl 202 can prevent the ratchet 201 from rotating and keep the ratchet 201 in the locked position; a transmission connecting rod is inserted into the pawl 202, and the transmission connecting rod is in contact with the self-priming arm 309. When the bevel gear unlocking stop arm 305 rotates, it can drive the self-priming arm 309 to rotate, so as to realize the unlocking or locking of the front side door of the automobile.

[0104] The automobile rear door self-priming lock further includes a first motor 301, which is mounted on the lower housing 102. A first worm 302 is fixed to the output end of the first motor 301, and the first motor 301 can drive the first worm 302 to rotate forward or reversely.

[0105] A helical gear unlocking stop arm 305 is also rotatably connected between the upper housing 101 and the lower housing 102. The outer periphery of the helical gear unlocking stop arm 305 has first helical teeth 306 that can mesh with the first worm 302. When the first worm 302 rotates forward or reversely, the helical gear unlocking stop arm 305 can be driven to rotate forward or reversely through the first helical teeth 306.

[0106] The lower housing 102 is slidably connected with a central control unlocking stop link 303 for central control unlocking or locking, and the sliding direction of the central control unlocking stop link 303 is parallel to the rotation surface of the helical gear unlocking stop arm 305;

[0107] The central control unlocking stop link 303 has a coupling end 304, and correspondingly, the outer periphery of the helical gear unlocking stop arm 305 is provided with a pushing portion 307. When unlocking, the coupling end 304 can apply a thrust to the pushing portion 307 to rotate the helical gear unlocking stop arm 305 to the unlocking position, thereby realizing central control unlocking.

[0108] This solution can solve the technical problem that in the prior art, the central control unlocking stop arm of the rear side door self-priming lock of the automobile is mostly a split structure, that is, the central control unlocking stop arm and the gear are separated into two independent parts, resulting in many parts in the functional module of the central control unlocking, complicated assembly, and high cost. The helical gear unlocking stop arm 305 in this solution integrates the central control unlocking stop arm and the gear into an integrated structure. When the central control is unlocked or locked, the first motor 301 drives the first worm 302 to rotate forward or reverse, thereby driving the helical gear unlocking stop arm 305 to rotate, so that the pushing part 307 pushes the coupling end 304, so that the central control unlocking stop link 303 moves forward or backward to achieve the central control unlocking stop action.

[0109] Specifically, as one of the implementation methods of driving the self-priming arm 309 to rotate when the bevel gear unlocking stop arm 305 rotates, an unlocking end is provided on the outer periphery of the bevel gear unlocking stop arm 305. When the bevel gear unlocking stop arm 305 turns to the unlocking position, the unlocking end can push the self-priming arm 309 to rotate, and then the self-priming arm 309 pushes the transmission connecting rod to rotate toward the unlocking position, and drives the pawl 202 to rotate toward the unlocking position to achieve unlocking; after unlocking, the self-priming arm 309 can be reset under the action of elasticity.

[0110] Specifically, the upper shell 101 and the lower shell 102 are detachably connected via a pin.

[0111] For details, please refer to Fig. 9 and Fig.10 A first pin shaft 308 is fixed at the center of the helical gear unlocking stop arm 305 , and both ends of the first pin shaft 308 are rotatably connected to the upper shell 101 and the lower shell 102 at the same time.

[0112] As the preferred solution for the rear door self-priming lock of the car, please refer to Figure 9 to Figure 5 A reset damping block 310 is fixed to the side of the helical gear unlocking stop arm 305 facing the upper shell 101, and the reset damping block 310 can rotate along with the helical gear unlocking stop arm 305. Correspondingly, an upper shell damping boss 105 protrudes on the upper shell 101 toward the helical gear unlocking stop arm 305. When the helical gear unlocking stop arm 305 rotates, the reset damping block 310 can contact the upper shell damping boss 105 and generate friction, thereby reducing the rotation speed of the helical gear unlocking stop arm 305.

[0113] When the bevel gear unlocking stop arm 305 is unlocked by the central control, the reset damping block 310 will slightly interfere with the upper shell damping boss 105 to generate friction resistance when it resets to the initial position, thereby reducing the reset speed of the first motor 301 and increasing the reset time, thereby avoiding the switch misjudgment caused by the reset speed of the first motor 301 being too fast, and then pre-pressing the self-priming arm 309, making the front door unable to close or half-closed. The design of the bevel gear reset damping block 310 structure greatly reduces the safety hazards in the unlocking and stopping process.

[0114] For the rear side doors, a child safety function module needs to be added to the rear side door locks to prevent children from accidentally touching the door while driving when sitting in the back seat, which may cause safety accidents. Currently, electric child safety devices are preferred because they are easy to operate and do not require a separate mechanical car key for manual mechanical operation. However, the current electric child safety transmission structure of the side door self-priming lock is mostly a conventional cam lever structure with many parts and complicated assembly, resulting in high cost, many failure points and high maintenance frequency. In order to solve the above technical problems, the electric child safety structure in the rear side door self-priming lock structure is improved.

[0115] See also Figures 10 to 12 As a preferred solution of the rear door self-priming lock of the automobile, an electric child-proof structure is also provided in the rear door self-priming lock of the automobile. The electric child-proof structure is installed between the upper shell 101 and the lower shell 102, and includes a second motor 501. A second worm 502 is fixed to the output end of the second motor 501. A helical gear transmission arm 503 is elastically hinged on the lower shell 102;

[0116] The helical gear transmission arm 503 includes a helical gear end 504 and a transmission end 505, and the transmission end 505 is transmission-connected to a first end 510 of a child-protection connecting rod 509;

[0117] The child protection connecting rod 509 is also provided with a second end 511, the second end 511 is provided with a second waist hole 512, the second waist hole 512 is slidably connected to the rotating shaft of the self-suction arm 309, and the first end 510 is located between the second end 511 and the third end 513;

[0118] The third end 513 is fixed with a stop hook 514, and the corresponding self-priming arm 309 is provided with a through hole, and the stop hook 514 passes through the through hole; when the child-proof locking is performed, the helical transmission arm 503 rotates so that the rotation axis of the self-priming arm 309 is located at the end of the second waist hole 512 close to the second end 511. At this time, the second waist hole 512 and the stop hook 514 can simultaneously apply force to the self-priming arm 309 at the through hole to prevent the self-priming arm 309 from rotating toward the unlocking position, thereby realizing the child-proof locking.

[0119] This solution adopts a new integrated gear transmission arm structure. The second worm 502 is fixed on the shaft of the second motor 501, and the helical gear and the transmission arm are designed together and can rotate around the pin. The unlocking and locking functions of the electric child protection arm are realized through the forward and reverse rotation of the second motor 501, and the unlocking and locking signals are transmitted to the BCM through the micro switch 507. This structure simplifies the assembly of parts, saves assembly time, and reduces weight. The design of the integrated transmission arm greatly reduces the product development cost.

[0120] See also Figures 10 to 12 As a preferred solution of the electric child-safety structure, the electric child-safety structure further includes a child-safety unlocking torsion-stop spring 508, and the two ends of the child-safety unlocking torsion-stop spring 508 are respectively fixed to the helical gear transmission arm 503 and the lower housing 102;

[0121] When the child safety lock is in the locked state, the child safety unlocking torsion spring 508 is compressed and deformed, and has elastic potential energy. When the child safety lock is in the unlocked state, the child safety unlocking torsion spring 508 releases the elastic potential energy, and causes the child safety connecting rod 509 to return to its original position.

[0122] See also Figures 10 to 12 As a preferred solution for the electric child safety structure, a micro switch 507 is also installed on the lower shell 102, and the sensing end of the micro switch 507 can contact the helical gear transmission arm 503; it is used to transmit forward and reverse rotation signals to the second motor 501 to achieve unlocking and locking of the child safety.

[0123] See also Figures 6 to 8 As a preferred solution of the rear door self-priming lock of the automobile, the rear door self-priming lock of the automobile is further provided with a safety opening mechanism and a manual unlocking component, and the safety opening mechanism is transmission-connected with the manual unlocking component;

[0124] The manual unlocking assembly includes an inner unlocking link 403, an inner opening arm 401, an outer opening arm 407 and an opening linkage arm 404;

[0125] The inner opening arm 401 is rotatably connected to the base 104 and the bottom plate 103 at the same time, and the inner opening arm 401 is transmission-connected to the inner unlocking link 403, and the inner unlocking link 403 is elastically hinged to the upper shell 101; the inner unlocking link 403 is used for transmission connection with the inner door handle of the vehicle door, and pulling the inner door handle can pull the inner unlocking link 403 to rotate, thereby driving the inner opening arm 401 to rotate;

[0126] The outer opening arm 407 is used for transmission connection with the outer door handle of the vehicle door. Pulling the outer door handle can pull the outer opening arm 407 to rotate. The outer opening arm 407 is also rotationally connected to the base 104 and the bottom plate 103;

[0127] The opening linkage arm 404 is coaxially arranged with the outer opening arm 407, the inner opening arm 401 and the outer opening arm 407 are respectively in contact with two sides of the opening linkage arm 404, and when manual unlocking is not performed, the inner opening arm 401 and the outer opening arm 407 have torques in opposite directions;

[0128] The safety opening mechanism comprises a first safety opening arm 408 and a second safety opening arm 410 elastically hinged to the base respectively;

[0129] A first waist hole 409 is formed at one end of the first safety opening arm 408, and an unlocking arm 405 is extended outward from one side of the opening linkage arm 404. A first rivet shaft 406 is fixed to the extended end of the unlocking arm 405, and the first rivet shaft 406 is slidably connected to the first waist hole 409;

[0130] The second safety opening arm 410 is provided with a third rivet shaft 411. When the first safety opening arm 408 rotates, it can push the third rivet shaft 411 and drive the second safety opening arm 410 to rotate, so that the second safety opening arm 410 has a torque in the opposite direction of rotation of the first safety opening arm 408, and drives the first safety opening arm 408 to reset.

[0131] Specifically, in this embodiment, when the line of sight is facing the inside of the chassis, when manual unlocking is not performed, the inner opening arm 401 has a counterclockwise torque, the outer opening arm 407 has a clockwise torque, and at the same time, the first safety opening arm 408 also has a counterclockwise torque.

[0132] The working principle and process of the safety opening function are as follows: when the power is cut off or the motor is damaged during the closing process, the self-closing arm 309 stops. At this time, if the inner door handle is pulled, the inner opening arm 401 can be driven to rotate, and the second rivet shaft 402 on the inner opening arm 401 can drive the pawl 202 to rotate the self-closing arm 309, thereby driving the pawl 202 to rotate to achieve unlocking;

[0133] At this time, if the outer door handle of the vehicle door is pulled, the outer opening arm 407 can be driven to rotate, thereby driving the opening linkage arm 404 to rotate, and then correspondingly driving the inner opening arm 401 to rotate; the second rivet shaft 402 on the inner opening arm 401 can drive the pawl 202 to rotate the self-absorption arm 309, thereby driving the pawl 202 to rotate, thereby achieving unlocking;

[0134] When manual unlocking is not performed, the first safety opening arm 408 has an initial directional torque; during the unlocking process, due to the sliding connection between the first rivet shaft 406 and the first waist hole 409 on the first safety opening arm 408, the opening linkage arm 404 can be limited in rotation angle by the first safety opening arm 408 when rotating, which can avoid the opening linkage arm 404 and the inner opening arm 401 from being separated. After the unlocking is completed, since the second safety opening arm 410 has a torque in the opposite direction of rotation to the first safety opening arm 408, the second safety opening arm 410 is reset and drives the first safety opening arm 408 to reset; then the third rivet shaft 411 is separated from the first safety opening arm 408, the first safety opening arm 408 is reset, and at the same time, the first rivet shaft 406 and the opening linkage arm 404 are also driven to reset, and finally the inner opening arm 401, the inner unlocking link 403 and the outer opening arm 407 are reset.

[0135] The safety opening mechanism is used to ensure that the vehicle door can be opened manually when manual unlocking is required due to a sudden power outage or motor damage during the attraction process. During the manual unlocking process, the inner opening arm 401 and the outer opening arm 407 are key components directly involved in the unlocking action, and the safety opening arm serves as an auxiliary mechanism to ensure that the manual unlocking process can still proceed smoothly when the electronic system fails, and that the side door lock can still be manually unlocked safely without damaging its own structure and drive various components to work and reset, thereby improving the safety and reliability of the vehicle.

[0136] The safety opening mechanism is used to ensure that the rear door can be opened manually when manual unlocking is required due to a sudden power outage or motor damage during the attraction process. During the manual unlocking process, the inner opening arm 401 and the outer opening arm 407 are key components directly involved in the unlocking action, and the safety opening arm serves as an auxiliary mechanism to ensure that the manual unlocking process can still proceed smoothly when the electronic system fails, and that the side door lock can still be manually unlocked safely without damaging its own structure and drive various components to work and reset, thereby improving the safety and reliability of the vehicle.

[0137] The use of the automobile rear side door self-priming lock disclosed in this embodiment has the following technical effects: in the automobile rear side door self-priming lock disclosed in this embodiment, the helical gear unlocking stop arm uses the central control unlocking stop arm and the gear to integrate into an integrated structure, when the central control is unlocked or locked, the first motor drives the first worm to rotate forward or reverse, and then drives the helical gear unlocking stop arm to rotate, so that the pushing part pushes the coupling end, so that the central control unlocking stop connecting rod moves forward or backward to realize the central control unlocking stop action, which can simplify the assembly of parts, save assembly time, and reduce the weight of the lock body itself, and solves the technical problems in the prior art that the automobile side door self-priming lock has many parts and cumbersome assembly, thereby causing high cost, many failure points, and high maintenance frequency;

[0138] In addition, the electric child-protection structure of the rear door self-priming lock of the automobile of this embodiment also adopts an integrated helical gear transmission arm, which simplifies the assembly of parts, saves assembly time, and reduces weight. The design of the integrated transmission arm further saves assembly time, reduces the weight of the lock body itself, and further reduces product development costs;

[0139] In addition, the rear door self-priming lock of the automobile in this embodiment also adopts the cooperation of the reset damping block and the damping boss of the upper shell, so that when the helical tooth unlocking stop arm is unlocked by the central control, the reset damping block will slightly interfere with the damping boss of the upper shell when it is reset to the initial position to generate friction resistance, thereby reducing the reset speed of the first motor and increasing the reset time, which greatly reduces the safety hazards in the unlocking stop process;

[0140] In addition, the self-priming lock of the rear side door of the automobile in this embodiment also adopts a safe opening mechanism, which can serve as an auxiliary mechanism to ensure that when the electronic system fails, the manual unlocking process can still proceed smoothly, and the side door lock can still be manually unlocked safely without damaging its own structure and drive various components to work and reset, thereby improving the safety and reliability of the vehicle.

[0141] It can be understood that the present invention is described by some specific embodiments / embodiments, and those skilled in the art are aware that various changes or equivalent substitutions can be made to these features and specific embodiments / embodiments without departing from the spirit and scope of the present invention. Under the guidance of the present invention, these features and specific embodiments / embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. The specific embodiments / embodiments described in the present invention are part of the specific embodiments / embodiments of the present invention, rather than all of the specific embodiments / embodiments. The components of the specific embodiments / embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the specific embodiments / embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but only represents the selected specific embodiments / embodiments of the present invention. Therefore, the present invention is not limited by the specific embodiments / embodiments disclosed herein, and all other specific embodiments / embodiments obtained by ordinary technicians in the field without creative work based on the specific embodiments / embodiments in the present invention belong to the scope of protection of the present invention.

Claims

1. The self-priming lock for the front side door of the car is characterized by: It includes a self-priming arm, which is elastically hinged between the upper shell and the lower shell. By rotating the self-priming arm, the front side door of the car can be unlocked or locked; The automobile front side door self-priming lock further includes a first motor, which is mounted on the lower housing, and a first worm is fixed to the output end of the first motor, and the first motor can drive the first worm to rotate forward or reversely; A helical gear unlocking stop arm is rotatably connected between the upper shell and the lower shell. The outer periphery of the helical gear unlocking stop arm has first helical teeth that can mesh with the first worm. When the first worm rotates forward or reverse, the helical gear unlocking stop arm can be driven to rotate forward or reverse through the first helical teeth. A central control unlocking stop link is slidably connected to the lower shell body for central control unlocking or locking, and the sliding direction of the central control unlocking stop link is parallel to the rotation surface of the helical gear unlocking stop arm; The central control unlocking stop link has a coupling end, and correspondingly, a pushing portion is provided on the outer periphery of the helical gear unlocking stop arm. When unlocking, the coupling end can apply a thrust to the pushing portion to rotate the helical gear unlocking stop arm to the unlocking position, thereby realizing central control unlocking.

2. The self-priming lock for the front side door of an automobile according to claim 1, characterized in that: A reset damping block is fixed on the side of the helical gear unlocking stop arm facing the upper shell body, and the reset damping block can rotate along with the helical gear unlocking stop arm. Correspondingly, an upper shell damping boss protrudes on the upper shell body toward the helical gear unlocking stop arm. When the helical gear unlocking stop arm rotates, the reset damping block can contact the upper shell damping boss and generate friction, thereby reducing the rotation speed of the helical gear unlocking stop arm.

3. The self-priming lock for the front side door of an automobile according to claim 2, characterized in that: The self-priming lock for the front side door of the automobile is also provided with a safety opening mechanism and a manual unlocking component, and the safety opening mechanism is transmission-connected with the manual unlocking component; The manual unlocking assembly includes an inner unlocking link, an inner opening arm, an outer opening arm and an opening linkage arm; The inner opening arm is rotatably connected to the base and the bottom plate at the same time, the inner opening arm is transmission-connected to the inner unlocking link, and the inner unlocking link is elastically hinged to the upper shell; the inner unlocking link is used to be transmission-connected to the inner door handle of the vehicle door, and pulling the inner door handle can pull the inner unlocking link to rotate, thereby driving the inner opening arm to rotate; The outer opening arm is used for transmission connection with the outer door handle of the vehicle door. Pulling the outer door handle can pull the outer opening arm to rotate. The outer opening arm is also rotationally connected with the base and the bottom plate. The opening linkage arm is coaxially arranged with the outer opening arm, the inner opening arm and the outer opening arm are respectively in contact with two sides of the opening linkage arm, and when manual unlocking is not performed, the inner opening arm and the outer opening arm have torques in opposite directions; The safety opening mechanism comprises a first safety opening arm and a second safety opening arm elastically hinged to the base respectively; A first waist hole is formed at one end of the first safety opening arm, an unlocking arm is extended outward from one side of the opening linkage arm, a first rivet shaft is fixed to the extended end of the unlocking arm, and the first rivet shaft is slidably connected to the first waist hole; The second safety opening arm is provided with a third rivet shaft. When the first safety opening arm rotates, the third rivet shaft can be pushed and the second safety opening arm can be driven to rotate, so that the second safety opening arm has a torque in the opposite direction of rotation of the first safety opening arm and drives the first safety opening arm to reset.

4. The rear door self-priming lock of the car is characterized by: It includes a self-priming arm, which is elastically hinged between the upper shell and the lower shell. By rotating the self-priming arm, the rear door of the car can be unlocked or locked; The automobile rear door self-priming lock further includes a first motor, which is mounted on the lower housing, and a first worm is fixed to the output end of the first motor, and the first motor can drive the first worm to rotate forward or reversely; A helical gear unlocking stop arm is rotatably connected between the upper shell and the lower shell. The outer periphery of the helical gear unlocking stop arm has first helical teeth that can mesh with the first worm. When the first worm rotates forward or reverse, the helical gear unlocking stop arm can be driven to rotate forward or reverse through the first helical teeth. A central control unlocking stop link is slidably connected to the lower shell body for central control unlocking or locking, and the sliding direction of the central control unlocking stop link is parallel to the rotation surface of the helical gear unlocking stop arm; The central control unlocking stop link has a coupling end, and correspondingly, a pushing portion is provided on the outer periphery of the helical gear unlocking stop arm. When unlocking, the coupling end can apply a thrust to the pushing portion to rotate the helical gear unlocking stop arm to the unlocking position, thereby realizing central control unlocking.

5. The automobile rear door self-priming lock according to claim 4, characterized in that: A reset damping block is fixed on the side of the helical gear unlocking stop arm facing the upper shell body, and the reset damping block can rotate along with the helical gear unlocking stop arm. Correspondingly, an upper shell damping boss protrudes on the upper shell body toward the helical gear unlocking stop arm. When the helical gear unlocking stop arm rotates, the reset damping block can contact the upper shell damping boss and generate friction, thereby reducing the rotation speed of the helical gear unlocking stop arm.

6. The automobile rear door self-priming lock according to claim 5, characterized in that: The rear door self-priming lock of the automobile is also provided with an electric child-proof structure, which is installed between the upper shell and the lower shell, and includes a second motor, a second worm is fixed to the output end of the second motor, and a helical gear transmission arm is elastically hinged on the lower shell; The helical gear transmission arm comprises a helical gear end and a transmission end, and the transmission end is transmission-connected to the first end of the child-protection connecting rod; The child protection connecting rod is also provided with a second end, the second end is provided with a second waist hole, the second waist hole is slidably connected to the rotating shaft of the self-priming arm, and the first end is located between the second end and the third end; A stop hook is fixed to the third end, and a through hole is provided on the corresponding self-priming arm, and the stop hook passes through the through hole; when the electric child protection structure is locked, the helical transmission arm rotates so that the rotation axis of the self-priming arm is located at the end of the second waist hole close to the second end. At this time, the second waist hole and the stop hook can simultaneously apply force to the self-priming arm at the through hole to prevent the self-priming arm from rotating toward the unlocking position, thereby realizing child protection locking.

7. The automobile rear door self-priming lock according to claim 6, characterized in that: The electric child safety structure also includes a child safety unlocking torsion-stopping spring, and the two ends of the child safety unlocking torsion-stopping spring are respectively fixed to the helical gear transmission arm and the lower shell; When the child safety is locked, the child safety unlocking torsion spring is compressed and deformed, and has elastic potential energy. When the child safety is unlocked, the child safety unlocking torsion spring releases the elastic potential energy, so that the child safety connecting rod is reset.

8. The automobile rear door self-priming lock according to claim 7, characterized in that: A micro switch is also installed on the lower shell, and the sensing end of the micro switch can contact the helical gear transmission arm; it is used to transmit forward and reverse rotation signals to the second motor to achieve unlocking and locking of the child protection.

9. The automobile rear door self-priming lock according to claim 8, characterized in that: The rear door self-priming lock of the automobile is also provided with a safety opening mechanism and a manual unlocking component, and the safety opening mechanism is transmission-connected with the manual unlocking component; The manual unlocking assembly includes an inner unlocking link, an inner opening arm, an outer opening arm and an opening linkage arm; The inner opening arm is rotatably connected to the base and the bottom plate at the same time, the inner opening arm is transmission-connected to the inner unlocking link, and the inner unlocking link is elastically hinged to the upper shell; the inner unlocking link is used to be transmission-connected to the inner door handle of the vehicle door, and pulling the inner door handle can pull the inner unlocking link to rotate, thereby driving the inner opening arm to rotate; The outer opening arm is used for transmission connection with the outer door handle of the vehicle door. Pulling the outer door handle can pull the outer opening arm to rotate. The outer opening arm is also rotationally connected with the base and the bottom plate. The opening linkage arm is coaxially arranged with the outer opening arm, the inner opening arm and the outer opening arm are respectively in contact with two sides of the opening linkage arm, and when manual unlocking is not performed, the inner opening arm and the outer opening arm have torques in opposite directions; The safety opening mechanism comprises a first safety opening arm and a second safety opening arm elastically hinged to the base respectively; A first waist hole is formed at one end of the first safety opening arm, an unlocking arm is extended outward from one side of the opening linkage arm, a first rivet shaft is fixed to the extended end of the unlocking arm, and the first rivet shaft is slidably connected to the first waist hole; The second safety opening arm is provided with a third rivet shaft. When the first safety opening arm rotates, the third rivet shaft can be pushed and the second safety opening arm can be driven to rotate, so that the second safety opening arm has a torque in the opposite direction of rotation of the first safety opening arm and drives the first safety opening arm to reset.

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