Sliding block assembly with shifting arm and vehicle door lock comprising sliding block assembly

Abstract

The utility model belongs to the technical field of automobile parts, and discloses a sliding block assembly with a shifting arm and a vehicle door lock comprising the sliding block assembly. The spiral sliding block is arranged on the screw rod of the rod part, and when the screw rod rotates forwards or reversely, the spiral sliding block does forward or reverse linear motion on the screw rod; the spiral sliding block comprises a sliding block pushing surface, and the shifting arm is rotatably arranged on the spiral sliding block; the sliding block assembly is located between the pawl driving lever and the second locking driving lever and directly drives the pawl driving lever or the second locking driving lever to rotate, and compared with the prior art, the sliding block assembly does not push the unlocking driving lever to push the pawl driving lever, but directly pushes the pawl driving lever, and therefore the unlocking driving lever and the second locking driving lever are not pushed by the sliding block assembly. The sliding block assembly and the unlocking deflector rod are in a parallel pushing executing mechanism relation instead of a transmission executing mechanism relation, the triggered condition can be flexibly adjusted by designing the outer contour of the stress face of the spiral sliding block, and the application of the vehicle door lock in different vehicle doors is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts, in particular to an automobile door lock actuator mechanism with self-priming and interruption, wherein the mechanism is provided with a slider of a driving arm. Background Art

[0002] This application is an improvement of the Chinese invention patent application with publication number CN117306965A previously applied by the applicant. In the above-mentioned prior application, it is related to a car door lock actuator mechanism with self-priming and interruption, including: an unlocking lever, which is set to rotate; a first locking lever, which is set to rotate; a self-priming component, which is used to automatically control the rotation of the unlocking lever; and a component used to automatically control the rotation of the first locking lever; and an interruption component, which is used to manually control the rotation of the unlocking lever and the first locking lever, and at the same time can control the self-priming component to interrupt the rotation of the first locking lever. The self-priming component of the utility model can automatically control the rotation of the unlocking lever and the first locking lever, which improves the convenience of unlocking and locking.

[0003] In particular, in the prior patent CN117306965A, the unlocking lever 100 is the core component. In the electric unlocking mode, the unlocking lever 100 is automatically controlled to rotate by the self-priming component, and the ratchet is pushed to rotate to open the door lock; in the self-priming interruption mode, the manual release rod 430 gives the unlocking lever 100 an external force to rotate the unlocking lever 100, thereby completely unlocking the door lock. In other words, in both modes, the unlocking lever 100 needs to be used to trigger the ratchet wheel to rotate and further trigger the ratchet to rotate.

[0004] However, due to the single design of the unlocking lever, the above-mentioned vehicle door lock cannot adapt well to different doors, and because the self-priming interruption mode is the safety guarantee of the electric unlocking mode, the applicant hopes to further distinguish the two modes as much as possible and minimize the shared components of the two systems, thereby improving the safety performance of the door lock. Utility Model Content

[0005] The utility model aims to provide a slider assembly with a lever arm and a vehicle door lock comprising the same, which can provide two systems to drive the pawl to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the following technical solutions are provided:

[0007] A slider assembly with a lever arm comprises: a screw rod, which can be driven to rotate by a power unit through a transmission gear thereon; a spiral slider, which is arranged on the screw rod of the rod portion, and when the screw rod rotates forward or reversely, the spiral slider makes forward or reverse linear motion on the screw rod; the spiral slider comprises a slider pushing surface; a lever arm, which is rotatably arranged on the spiral slider, and the lever arm comprises a lever end and a force-bearing end; and also comprises a lever arm reset spring, which elastically biases the lever arm relative to the spiral slider, and when the force-bearing end is driven by an external force, the lever arm overcomes the elastic force of the lever arm reset spring and rotates; wherein the slider pushing surface and the force-bearing end are respectively located on both sides of the spiral slider.

[0008] The utility model also provides a vehicle door lock, comprising: an upper shell, a lower shell and an installation cavity surrounded by the upper shell and the lower shell, a ratchet and a pawl, wherein the pawl and the ratchet are both rotatably connected in the installation cavity, the pawl keeps the ratchet in a fully locked position, a half-locked position and an unlocked position, and an unlocking connecting rod, which can push the pawl to convert from the fully locked position, the half-locked position to the unlocked position under force; a self-priming component, a second locking lever and a first locking lever, wherein the second locking lever drives the first locking lever to rotate under electric control, and the rotation of the first locking lever drives the ratchet to rotate from the unlocked position to the fully locked position; and also includes: a self-priming component, comprising the aforementioned slider component with a lever arm, the slider component is located between the pawl lever and the second locking lever, and makes forward or reverse linear motion in the slider component to directly drive the pawl lever or the second locking lever to rotate.

[0009] Preferably, the slider push surface of the spiral slider is used to push the second locking lever to rotate; when the lever arm rotates, the force-bearing end is used to directly push the pawl lever of the pawl.

[0010] Preferably, the pawl lever is directly pushed by either the slider assembly or the unlocking link.

[0011] The beneficial effects of the utility model are:

[0012] 1) In the prior art, the electric self-priming mode relies on the movement of the slider itself on the screw to trigger the pawl, while the operating efficiency of the electric unlocking mode is determined by the speed at which the slider moves on the screw. Unlike the prior art, the slider assembly in the utility model is provided with a lever arm, and the lever arm can be designed with different outer contours to set the triggering conditions. Since the force-bearing end of the lever arm protrudes from the front end of the slider, when the slider performs the electric unlocking mode operation, the force-bearing end of the lever arm will be triggered in advance, so that the lever end will move the pawl, and the electric self-priming mode can be executed with a small displacement of the slider, thereby improving the operating efficiency of the electric self-priming mode. At the same time, the triggering conditions can be flexibly adjusted by designing the outer contour of the pushing surface of the spiral slider, thereby improving the application of vehicle door locks in different doors.

[0013] 2) In the prior art (specifically the applicant's prior application CN117306965A, a car door lock actuator mechanism with self-priming and interruption), the unlocking lever is frequently used in the electric unlocking mode. Once the unlocking lever is damaged, the self-priming interruption mode cannot drive the pawl lever through the unlocking lever. Different from the prior art, the slider assembly in the utility model does not push the unlocking lever, but directly pushes the pawl lever. The slider assembly and the unlocking lever are parallel pushing actuators rather than transmission actuators. This also makes the electric unlocking mode and the self-priming interruption mode use two different sets of transmission assemblies to drive the pawl lever respectively, preventing excessive use of the unlocking lever. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of a slider assembly with a lever arm of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the vehicle door lock of the utility model in a fully locked state;

[0016] Figure 3 This is a schematic diagram of the semi-locked state of the structure of the vehicle door lock of the utility model;

[0017] Figure 4 This is a schematic diagram of the automatic closing state of the structure of the vehicle door lock of the utility model;

[0018] Figure 5 It is a schematic diagram of the automatic closing and manual interruption state of the structure of the vehicle door lock of the utility model;

[0019] Figure 6 It is a schematic diagram of the electric unlocking state of the structure of the vehicle door lock of the utility model;

[0020] Figure 7 This is a schematic diagram of the first appearance of the vehicle door lock of the utility model;

[0021] Figure 8 This is a second appearance schematic diagram of the vehicle door lock of the utility model.

[0022] Figure numerals: 10, lock tongue; 11, lock tongue protrusion; 20, pawl; 21, pawl lever; 30, first locking lever; 31, pivot end; 32, cantilever end; 33, movable column; 34, first locking lever; 5, slider assembly; 50, spiral slider; 51, lever arm; 5a, slider pushing surface; 5b, toggle end; 5c, force-bearing end; 5d, lever arm return spring; 52, transmission gear; 53, screw; 60, self-priming interruption metal lever; 61, unlocking lever; 62, pressure rod; 63, manual release lever; A, upper shell; B, lower shell; C, locking position. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0024] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0025] Vehicles and doors

[0026] The vehicle in the prior art proposed in this embodiment is generally a so-called minivan or a one-box type vehicle having a vehicle body with an opening at the back and a trunk door (door) for opening and closing the back opening of the vehicle body.

[0027] The rear opening of the vehicle body communicates with the space in the vehicle compartment, and can open substantially the entire rear surface. A hinge is provided between the trunk door and the upper edge of the rear opening, and the rear opening can be opened or closed by rotating around a horizontal axis extending in the left-right direction of the vehicle body.

[0028] Vehicle door locks

[0029] like Figure 7 As shown in Figure 8, a locking unit is provided at the lower edge of the trunk door of the vehicle, and on the other hand, a locking pin unit is provided at the lower edge of the rear opening of the vehicle body. The structures of the locking unit and the locking pin unit are described in detail below, and the characteristic parts of the utility model are described together. In addition, for the convenience of description below, the directions of the structural elements of the locking unit and the locking pin unit are determined in the posture of the state loaded on the vehicle. The locking unit is used to engage and retain the locking pin of the locking pin unit described later, and is installed on the trunk door with the help of a shell.

[0030] The vehicle door lock includes a rotatable lock tongue 10, the lock tongue 10 has a first engaging portion and a second engaging portion, and has a first engaging state, a second engaging state and a non-engaging state, corresponding to a fully locked state, a half-locked state and an unlocked state, and also includes a rotatable ratchet 20, which is disengaged from the lock tongue 10 according to the rotation direction when rotating, or the lock tongue 10 is pressed against the first engaging portion or the second engaging portion of the lock tongue 10; a first locking lever 30 is rotatably arranged, and drives the lock tongue 10 to rotate according to the rotation direction when rotating, or disengages it from the lock tongue 10; and also includes a rotatable unlocking lever 61, which is used to drive the ratchet 20 to rotate when rotating, so that the ratchet 20 is disengaged from the first engaging portion and the second engaging portion of the lock tongue 10;

[0031] Among them, when the lock tongue 10 is rotated to the point where the first engaging portion thereon engages with the pawl 20, the lock tongue 10 is in a fully locked state; when the lock tongue 10 is rotated to the point where the second engaging portion thereon engages with the pawl 20; when the lock tongue 10 is rotated to the point where the pawl 20 is disengaged from the first engaging portion and the second engaging portion, the lock tongue 10 is in an unlocked state.

[0032] Vehicle door lock actuator

[0033] The vehicle door lock actuator includes a self-priming component, which is used to automatically control the rotation of the unlocking lever 61 to rotate the pawl 20; and is used to automatically control the rotation of the first locking lever 30 to drive the lock tongue 10 to rotate in the direction of full locking; and also includes an interruption component, which is used to manually control the rotation of the unlocking lever 61 to release the pawl 20 through the rotation of the pawl lever 21, so that the lock tongue 10 can be rotated to the unlocked state.

[0034] Self-priming components and interruption components

[0035] The first locking lever 30 is provided with a first slot; the interruption assembly includes a movable column 33, which is movably arranged on the first slot along the length direction of the first slot; the second locking lever 34 is rotatably arranged, and the second locking lever 34 is provided with a second slot opposite to the first slot and a third slot connected to the second slot, and the movable column 33 also extends into the second slot;

[0036] The self-priming interruption metal lever 60 includes a pressure rod 62 and a manual release rod 63. The self-priming interruption metal lever 60 can trigger the unlocking lever 61 to rotate. Specifically, the manual release rod 63 can be connected to the pull wire and subjected to the force of the manual pull wire. At this time, the self-priming interruption metal lever 60 rotates, and the self-priming interruption metal lever 60 drives the unlocking lever 61 to push the pawl lever 21 to rotate; at the same time, the pressure rod 62 corresponds to the movable column 33. The extended end of the movable column 33 is located in the second card slot, and when the self-priming component automatically drives the second locking lever 34 to rotate, the second locking lever 34 drives the movable column 33 and the first locking lever 30 to rotate; when the manual release rod 63 rotates, it drives the unlocking lever 61 to rotate and pushes the pawl lever 21. The pressure rod 62 is used to drive the movable column 33 to move from the second card slot to the third card slot, so that when the movable column 33 slides in the third card slot, it drives the first locking lever 30 to rotate at the same time, so that it moves in the direction of disengaging the lock tongue 10.

[0037] The first locking rod 30 has a first slot, the second locking rod 34 has a second slot opposite to the first slot, and the third slot is connected to the second slot. The movable column 33 extends into the second slot. These structures enable the movable column 33, the first locking rod 30 and the second locking rod 34 to cooperate with each other to realize automatic and manual control of the door lock system.

[0038] The self-priming assembly includes a screw rod 53 , which can be driven by a power unit via a transmission gear 52 thereon.

[0039] The slider assembly 5 is arranged on the screw rod 53 of the rod, and when the screw rod 53 rotates, the slider assembly 5 performs linear motion on the threaded section. The slider assembly 5 is located between the pawl lever 21 and the second locking lever 34, and when the slider assembly 5 performs linear motion, it is used to drive the pawl lever 21 or the second locking lever 34 to rotate.

[0040] The slider assembly 5 includes a spiral slider 50, which is sleeved on a screw rod 53 and can be pushed by the screw rod 53, and the spiral slider 50 includes a slider pushing surface 5a;

[0041] The lever arm 51 is rotatably arranged on the spiral slider 50, and includes a lever end 5b and a force-bearing end 5c; and also includes a lever arm reset spring 5d, which offsets the lever arm 51 relative to the spiral slider 50. When the force-bearing end 5c encounters a preset limit resistance, the lever arm 51 rotates, for example, the force-bearing end 5c hits the inner wall of the shell, and at this time, the inner wall of the shell can be designed with a corresponding protrusion adapted to the force-bearing end 5c. If the protrusion protrudes relatively long toward the lever arm 51, the lever arm 51 will hit the protrusion with less execution time.

[0042] Electric unlocking mode

[0043] In the electric unlocking mode, when the slider assembly 5 moves toward the pawl lever 21, when the spiral slider 50 moves to the preset position, the force-bearing end 5c of the lever arm 51 is pushed against the lower shell B, and the lever arm 51 deflects to overcome the elastic force of the lever arm return spring 5d, and the driving end 5b pushes the pawl lever 21, thereby driving the pawl 20 to rotate so that the pawl 20 disengages from the first engaging portion and the second engaging portion of the lock tongue 10.

[0044] In the prior art, the electric self-priming mode triggers the pawl by the movement of the slider itself on the screw, while the operating efficiency of the electric unlocking mode is determined by the speed of the slider moving on the screw. Figure 1 The slider assembly in the embodiment is equipped with a lever arm, which can be set with different outer contours to set the triggering conditions. Since the force-bearing end 5c of the lever arm protrudes from the front end of the slider, when the slider is in the electric unlocking mode, the force-bearing end 5c of the lever arm will be triggered in advance, so that the lever end 5b can move the ratchet, so that the electric self-priming mode can be executed with a small displacement of the slider, which improves the operating efficiency of the electric self-priming mode. At the same time, the triggering conditions can be flexibly adjusted by designing the outer contour of the pushing surface of the spiral slider, so as to improve the application of vehicle door locks in different doors.

[0045] Moreover, in the prior art (especially the applicant's prior application CN117306965A, a car door lock actuator mechanism with self-priming and interruption), the unlocking lever 61 is frequently used in the electric unlocking mode. Once the unlocking lever 61 is damaged, the self-priming interruption mode cannot drive the pawl lever 21 through the unlocking lever 61. Different from the prior art, the slider assembly 5 in this embodiment does not push the unlocking lever, but directly pushes the pawl lever 21. The slider assembly 5 and the unlocking lever are parallel pushing actuators rather than transmission actuators. This also makes the electric unlocking mode and the self-priming interruption mode use two different sets of transmission assemblies to drive the pawl lever 21 respectively, preventing excessive use of the unlocking lever 61.

[0046] Electric self-priming mode

[0047] During the automatic control process of the electric self-priming mode, the slider assembly 5 moves toward the second locking lever 34. When the spiral slider 50 moves to the preset position, the slider pushing surface 5a of the spiral slider 50 applies an external force to the second locking lever 34 and rotates it. The second locking lever 34 drives the movable column 33 and the first locking lever 30 to rotate, and then the first locking lever 30 drives the lock tongue 10 to rotate, that is, rotates clockwise. During this process, the pawl 20 gradually moves on the second engaging portion until the pawl 20 engages with the first engaging portion, thereby finally achieving full locking of the lock tongue 10.

[0048] Manual interruption of electric self-priming mode

[0049] In the present technical scheme, the lock tongue 10 is used to unlock and lock the lock position C of the vehicle door lock, thereby controlling the opening and closing of the vehicle door. Under the action of the self-priming component, the lock tongue 10 is locked by rotating the first locking lever 30, and the lock tongue 10 is unlocked by rotating the ratchet lever 21. When the self-priming component fails, or the self-priming component is in some external emergency situations during the self-priming process of the door lock, such as when the tailgate support rod anti-pinch fails and a finger is pinched, or when other situations require interruption of the self-priming process, an interruption component is required to unlock the lock tongue 10. Through the combination of the self-priming component and the interruption component, automatic and manual control of the door lock system is realized. The self-priming component can automatically control the rotation of the ratchet lever 21 and the first locking lever 30, thereby improving the convenience of unlocking and locking. The interruption component can be manually controlled when necessary to meet the use requirements of the door lock under special circumstances.

[0050] In the electric self-priming mode, the self-priming component applies an external force to the unlocking lever 61 and causes it to rotate. The unlocking lever 61 then drives the pawl 20 to rotate, causing the pawl 20 to disengage from the lock tongue 10. At this time, the lock tongue 10 can rotate counterclockwise. With the help of other external forces, the lock tongue 10 can be unlocked after rotating counterclockwise.

[0051] An important design point of the interruption component structure is the second locking lever 34. The second locking lever 34 is provided with a second slot and a third slot, the third slot is provided as an arc-shaped slot, and the center of the arc-shaped slot is located on the rotation axis of the second locking lever 34. The first locking lever 30 and the second locking lever 34 are provided to rotate coaxially.

[0052] The external force applied by the manual release rod 63 to the movable column 33 will cause the movable column 33 to move downward for a certain distance, that is, from the second slot to the third slot. Then, when the external force is continuously applied, the movable column 33 moves while driving the first locking lever 30 to rotate (clockwise). After the first locking lever rotates clockwise, it will not drive the lock tongue 10 to rotate clockwise. At this time, even if the self-priming component drives the second locking lever 34 to rotate, under the action of the third slot, the second locking lever cannot apply external force to the movable column 33, and thus cannot drive the second locking lever to rotate (counterclockwise). At this time, the manual release rod 63 applies an external force to the unlocking lever 61 to disengage the pawl 20 from the lock tongue 10, thereby completely unlocking the lock tongue 10. This manual control method can quickly interrupt the self-priming component from rotating the first locking lever 30, so that the lock tongue 10 can rotate to the unlocked state, thereby improving the convenience of operation of the door lock system.

[0053] The unlocking lever 61 is used only in the self-priming interruption mode, so in the above structure, the self-priming component and the interruption component will not interfere with each other. That is to say, when the self-priming actuator fails, a separate mechanical locking and unlocking can be achieved, further ensuring the safety during the maintenance process.

[0054] Reset of the actuator mechanism

[0055] The actuator mechanism also includes a first reset member, which is arranged on the lock tongue 10 and is used to provide a reset thrust for the lock tongue 10, so that the lock tongue 10 can move to its unlocked state position; a second reset member, which is arranged on the pawl 20 and is used to provide a reset thrust for the pawl 20, so that the pawl 20 can be pressed against the lock tongue 10; a third reset member, which is arranged on the unlocking lever 61 and is used to provide a reset thrust for the unlocking lever 61; and a fourth reset member, which is arranged on the movable column 33 and is used to provide a reset thrust for the first locking lever 30, so that the first locking lever 30 moves in the direction of disengaging from the lock tongue 10.

[0056] The function of these reset members is to provide a reset thrust so that the lock tongue 10, the pawl 20, the unlocking lever 61 and the first locking lever 30 can move to their original state or unlocked state.

[0057] Specifically, each reset member is a torsion spring, wherein, when the pawl 20 is separated from the lock tongue 10, the function of the first reset member is to push the lock tongue 10 to move to the unlocked state position and realize unlocking. After the self-priming component is reset, the unlocking lever 61 no longer applies a rotational external force to the pawl 20, and then the second reset member drives the pawl 20 to rotate clockwise so that the pawl 20 is pressed against the lock tongue 10. After the self-priming component is reset, the unlocking lever 61 loses the external force. At this time, the unlocking lever 61 is driven to rotate and reset by the third reset member, so as to facilitate the next self-priming component to apply an external force to the unlocking lever 61. After the self-priming component is reset, the function of the fourth reset member is to push the first locking lever 30 to move in the direction of separating from the lock tongue 10, so as to facilitate the next self-priming component to apply an external force to the second locking lever 34.

[0058] Control of car door lock system

[0059] The actuator mechanism also includes a control unit, which can control the state of the power unit according to instructions to complete the electric unlocking and electric self-priming modes. The following describes the control content of the control unit:

[0060] The control unit includes: a signal detection unit, which is used to detect the signal and send the signal to the control unit;

[0061] And the control unit controls the operating state of the power unit according to the received signal, so that the slider assembly 5 moves toward the unlocking lever 61 or the second locking lever 34 or stops.

[0062] Wherein, the signal detection unit comprises:

[0063] A micro switch sends a signal to the control unit when turned on. There are two micro switches, namely the first micro switch and the second micro switch;

[0064] A ratchet lever 21 is disposed on the ratchet. When the ratchet rotates, the ratchet lever 21 is used to control the first micro switch to be turned on or off;

[0065] and a lock tongue protrusion 11 of the lock tongue 10, the lock tongue protrusion 11 is arranged on the lock tongue 10, and when the lock tongue 10 rotates, the lock tongue protrusion 11 of the lock tongue 10 is used to control the second micro switch to be turned on or off;

[0066] When the lock tongue 10 rotates to the unlocked state, the position of the pawl 20 causes the pawl lever 21 to turn on the first micro switch, and the lock tongue protrusion 11 of the lock tongue 10 pushes the second micro switch to turn on;

[0067] When the lock tongue 10 is rotated to a semi-locked state, the first micro switch is disconnected and the second micro switch is turned on;

[0068] When the lock tongue 10 is rotated to be in a fully locked state, the first micro switch is turned off and the second micro switch is turned off.

[0069] The unlocking and locking conditions of the car tailgate are as follows.

[0070] When the tailgate of the automobile is opened, the lock tongue 10 is in the unlocked state. When the operator manually closes the tailgate of the automobile, if the hook lock on the tailgate of the automobile directly hits the lock tongue 10 to rotate the lock tongue 10 to a larger angle, and the ratchet 20 is engaged with the first engaging portion of the lock tongue 10, it indicates that the lock tongue 10 fully locks the tailgate of the automobile. At this time, the self-priming component will not be triggered to start. If the hook lock of the tailgate of the automobile hits the lock tongue 10 and rotates it until the ratchet 20 is engaged with the second engaging portion, the lock tongue 10 is in a semi-locked state, or the driving unit controls the tailgate of the automobile to close automatically and makes the lock tongue 10 in a semi-locked state, and then the control unit drives the slider assembly 5 to move to the right according to the signal of the second microswitch, and then applies a thrust to the second locking lever 34 through the slider assembly 5 to realize automatic locking of the tailgate of the automobile. After the lock tongue 10 rotates to the fully locked state, at this time, the control unit controls the power unit to stop, and then delays the start of the power unit to move the slider assembly 5 to the left, so that the slider assembly 5 is reset. When the unlocking signal is released to the control unit, the control unit controls the power unit to start, and pushes the unlocking lever 61 to rotate through the slider assembly 5. The lock tongue 10 rotates to the unlocking state under the action of the first return spring, and then the control unit controls the power unit to stop according to the signals of the first microswitch and the second microswitch, and then delays the control of the power unit to reverse until the slider assembly 5 is reset.

[0071] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A slider assembly with a lever arm, characterized in that: include: A screw rod (53), which can be driven to rotate by a power unit through a transmission gear (52) thereon; A spiral slider (50) is arranged on the screw rod (53). When the screw rod (53) rotates forward or backward, the spiral slider (50) performs forward or backward linear motion on the screw rod (53). The spiral slider (50) includes a slider pushing surface (5a). A lever arm (51) is rotatably arranged on the spiral slider (50), the lever arm comprising a lever end (5b) and a force-bearing end (5c); and further comprising a lever arm reset spring (5d), the lever arm reset spring (5d) elastically biasing the lever arm (51) relative to the spiral slider (50), and when the force-bearing end (5c) is driven by an external force, the lever arm overcomes the elastic force of the lever arm reset spring (5d) and rotates; The slider push surface (5a) and the force-bearing end (5c) are respectively located on two sides of the spiral slider (50).

2. Vehicle door locks, including: The upper shell (A), the lower shell (B) and the installation cavity surrounded by the upper shell and the lower shell, A ratchet and a pawl, wherein the pawl and the ratchet are both rotatably connected in the mounting cavity, and the pawl keeps the ratchet in a fully locked position, a half-locked position, and an unlocked position. An unlocking link, which can push the pawl to switch from a fully locked position or a half-locked position to an unlocked position under force; A self-priming component, a second locking lever (34) and a first locking lever (30), wherein the second locking lever (34) drives the first locking lever (30) to rotate under electric control, and the rotation of the first locking lever drives the ratchet wheel to rotate from an unlocking position to a fully locked position; It is characterized in that the self-priming component also includes a slider assembly with a lever arm as described in claim 1, and the slider assembly (5) is located between the pawl lever (21) and the second locking lever (34). When the slider assembly (5) makes a forward or reverse linear motion, it directly drives the pawl lever (21) or the second locking lever (34) to rotate.

3. The vehicle door lock according to claim 2, characterized in that: The slider push surface (5a) of the spiral slider (50) is used to push the second locking lever (34) to rotate; When the lever arm (51) rotates, the force-bearing end (5c) is used to directly push the ratchet lever (21) of the ratchet.

4. The vehicle door lock according to claim 2, characterized in that: The ratchet lever (21) is directly pushed by either the slider assembly (5) or the unlocking connecting rod (61).

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