A central locking assembly for front door of automobile

Abstract

A central control lock assembly for a front door of an automobile comprises a lower cover plate, a lock body and an upper cover plate, wherein the horizontal surface of the lower cover plate is respectively provided with a matching pawl and ratchet through a pawl shaft and a ratchet shaft, a pawl push pin is provided on the pawl, and an inner opening rocker arm is provided on the upper cover plate; an anti-mislocking rocker arm is also provided on the ratchet shaft, and the rotating surface of the anti-mislocking rocker arm is parallel to the horizontal surface of the lock body; a locking rocker arm shaft is provided on the vertical surface of the lock body to install the locking rocker arm, and the rotating surface of the locking rocker arm is perpendicular to the horizontal surface of the lock body, and a locking toggle block is provided on the side of the locking rocker arm, and the locking toggle block is installed on the ratchet shaft, and the rotating surface of the locking toggle block is parallel to the horizontal surface of the lock body, and an opening linkage plate, an opening toggle plate and an outer opening rocker arm are sequentially provided on the outer opening rocker arm shaft on the side of the locking toggle block. When the vehicle door is opened and the inner opening rocker arm or the outer opening rocker arm is not reset, the locking rocker arm is operated so that the locking toggle block rotates to the limit position of the anti-mislocking rocker arm, thereby playing the anti-mislocking function.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts and components, and in particular relates to an automobile front door central control lock assembly with an anti-mislocking function. Background Art

[0002] At present, cars have entered thousands of households and are becoming more and more popular. There are cars of different types and technical levels for different consumption levels. The popularity of cars has also made people pay more and more attention to the driving safety and use safety of cars. As an important part of many car parts, car door locks play a vital role in protecting the driving safety of car owners and the safety of their personal and property.

[0003] When using a car, there may be a situation where the door is open and if a person accidentally locks the door when getting out of the car, the door cannot be opened after closing. Therefore, it is necessary to improve the structure of the car door lock to cope with this situation, so that when the door is open, the door cannot be locked from inside or outside the car. Summary of the invention

[0004] The purpose of the present invention is to provide a car front door central lock assembly with an anti-mislocking function. By arranging a locking rocker arm and an anti-mislocking rocker arm, in addition to ensuring the basic function of the lock body, the anti-mislocking function is introduced to further improve the safety of the lock body.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a central control lock assembly for the front door of an automobile, comprising a lower cover plate, a lock body and an upper cover plate, wherein the horizontal surface of the lower cover plate is respectively provided with a matching pawl and a ratchet through a pawl shaft and a ratchet shaft, the pawl is provided with a pawl pin, and the upper cover plate is provided with an inner opening rocker arm; an anti-mislocking rocker arm is also provided on the ratchet shaft, and the rotating surface of the anti-mislocking rocker arm is parallel to the horizontal surface of the lock body; a locking rocker arm shaft is provided on the vertical surface of the lock body to install the locking rocker arm, and the rotating surface of the locking rocker arm is perpendicular to the horizontal surface of the lock body, and the side of the locking rocker arm is A locking toggle block is provided, which is installed on the ratchet shaft, and the rotating surface of the locking toggle block is parallel to the horizontal plane of the lock body. An opening linkage plate, an opening toggle plate and an outer opening rocker arm are sequentially arranged on the outer opening rocker arm shaft on the side of the locking toggle block; when the vehicle door is opened and the inner opening rocker arm or the outer opening rocker arm is not reset, the locking toggle block is driven to rotate through the ratchet pin and the opening linkage plate by operating the locking rocker arm, and the locking toggle block is rotated to the limit position of the anti-mislocking rocker arm, and the anti-mislocking rocker arm prevents the locking toggle block from returning to its position, so as to play an anti-mislocking function.

[0006] The lock body is also provided with a motor, a worm, a worm wheel, a worm wheel return spring and a pinion. The motor drives the worm to rotate, the worm and the worm wheel are meshed and connected, the pinion is installed on the worm wheel and rotates with the worm wheel. The pinion is tooth-shapedly connected to the locking toggle block, and the worm wheel return spring is installed on the worm wheel shaft.

[0007] The motor drives the worm wheel and the pinion to rotate, and the pinion drives the locking toggle block to rotate, so that the opening linkage plate is separated from the ratchet pin, and the ratchet is separated from the ratchet wheel, thereby unlocking the door lock.

[0008] A worm gear buffer block is also provided on the lock body.

[0009] A locking toggle buffer block is provided on the movement path of the locking toggle block.

[0010] The locking toggle block is connected to one end of a locking toggle block torsion spring, and the other end of the locking toggle block torsion spring is fixed on a locking toggle block fixing shaft of the lock body.

[0011] The outward opening rocker arm pushes the opening toggle plate to rotate, and drives the opening linkage plate to rotate, so as to toggle the ratchet pawl and the ratchet pin, so that the ratchet pawl and the ratchet wheel are separated, and the door lock is opened.

[0012] The inner opening rocker arm pushes the opening toggle plate to rotate, and drives the opening linkage plate to rotate, so as to toggle the ratchet pawl and the ratchet pin, so that the ratchet pawl and the ratchet wheel are separated, and the door lock is opened.

[0013] The present invention also includes an outer locking rocker arm directly acting on the locking toggle block to achieve unlocking of the door lock.

[0014] The beneficial effects of the present invention are as follows: based on the structure of the existing automobile front door central lock, the present invention improves the structure according to the scenario to be dealt with, and sets a locking rocker arm and an anti-mislocking rocker arm. Since no matter what method is used to lock the car door, the participation of the locking toggle block is required, the present invention can be in an open state, and when the car door is in a state where the inner opening rocker arm or the outer opening rocker arm has not been reset, the locking toggle block is driven to rotate through the action of the locking rocker arm, the ratchet pin, and the opening linkage plate, and the locking toggle block is rotated to the limit position of the anti-mislocking rocker arm, and the anti-mislocking rocker arm prevents the locking toggle block from returning to its position, thereby avoiding the situation of accidentally locking the car door. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural explosion diagram of the present invention;

[0016] Figure 2 It is a top view of the internal structure of the present invention after removing the upper cover plate;

[0017] Figure 3 It is a top view of the internal structure of the present invention after removing the upper cover plate and the inner opening rocker arm;

[0018] Figure 4 is a side view of the present invention;

[0019] Figure 5 A top view of the overall structure of the present invention;

[0020] Figure 6 for Figure 5 AA view in;

[0021] Figure 7 for Figure 5 BB view in;

[0022] Figure 8 for Figure 5 CC view in;

[0023] Markings in the figure: 1, lower cover, 2, lock body, 3, upper cover, 4, cross-slot pan head fiberboard self-tapping screw, 5, locking rocker arm shaft, 6, locking rocker arm, 7, ratchet shaft, 8, ratchet, 9, pawl, 10, pawl shaft, 11, pawl pin, 12, motor bushing, 13, motor, 14, worm, 15, worm wheel, 16, worm wheel return spring, 17, worm wheel shaft, 18, worm wheel buffer block, 19, pinion, 20, external locking rocker arm, 21, external locking rocker arm joint, 22, locking toggle Block, 23, locking toggle buffer block, 24, ratchet return spring, 25, outward opening rocker arm joint, 26, opening linkage plate, 27, outward opening rocker arm, 28, opening toggle plate, 29, outward opening rocker arm shaft, 30, outward opening rocker arm return spring, 31, connecting plate, 32, locking toggle block fixed shaft, 33, locking toggle block torsion spring, 34, ratchet return spring, 35, conductive plate sub-assembly, 36, inner opening rocker arm, 37, retaining spring, 38, inner opening rocker arm shaft, 39, inner opening rocker arm return spring, 40, anti-mislocking rocker arm. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the invention in any way.

[0025] See attached Figure 1 As shown, a central locking assembly for a front door of a car with an anti-mislocking function includes a lower cover plate 1, a lock body 2, an upper cover plate 3, a cross-slotted pan head fiberboard self-tapping screw 4, a locking rocker arm shaft 5, a locking rocker arm 6, a ratchet shaft 7, a ratchet 8, a pawl 9, a pawl shaft 10, a pawl pin 11, a motor bushing 12, a motor 13, a worm 14, a worm wheel 15, a worm wheel return spring 16, a worm wheel shaft 17, a worm wheel buffer block 18, a pinion 19, an outer locking rocker arm 20, and an outer locking rocker arm joint 2 1, locking toggle block 22, locking toggle buffer block 23, ratchet return spring 24, outward opening rocker arm joint 25, opening linkage plate 26, outward opening rocker arm 27, opening toggle plate 28, outward opening rocker arm shaft 29, outward opening rocker arm return spring 30, connecting plate 31, locking toggle block fixed shaft 32, locking toggle block torsion spring 33, ratchet return spring 34, conductive plate sub-assembly 35, inner opening rocker arm 36, retaining spring 37, inner opening rocker arm shaft 38, inner opening rocker arm return spring 39, anti-mislocking rocker arm 40.

[0026] Combined with other drawings, a pawl 9 is installed on the horizontal plane of the lower cover plate 1 through a pawl shaft 10, and a ratchet 8 is installed through a ratchet shaft 7. A pawl pin 11 is provided on the pawl 9. Other parts act on the pawl pin 11 to push the pawl 9 to engage or separate with the ratchet 8 to achieve locking and opening of the lock body. The lower cover plate 1 is covered with a lock body 2, and a locking toggle buffer block 23 and a worm gear shaft 17 are provided on the front of the lock body 2. The ratchet shaft 7 on the front of the lock body 2 is also provided with an outer locking rocker arm 20, an anti-mislocking rocker arm 40, a connecting plate 31 and a locking toggle block 22 from bottom to top. The connecting plate 31 is used to enhance the strength of the structure. The rotating surface of the anti-mislocking rocker arm 40 is parallel to the horizontal plane of the lock body 2. The locking toggle block 22 is connected to one end of the locking toggle block torsion spring 33, and the other end of the locking toggle block torsion spring 33 is fixed to the locking toggle block fixed shaft 32 of the lock body 2; a locking rocker arm shaft 5 is provided on the vertical surface of the lock body 2 to install the locking rocker arm 6. The rotating surface of the locking rocker arm 6 is perpendicular to the horizontal plane of the lock body 2. The side of the locking rocker arm 6 is the locking toggle block 22. The rotating surface of the locking toggle block 22 is parallel to the horizontal plane of the lock body 2. One side of the locking toggle block 22 is the worm gear shaft 17. The worm gear 15 and the pinion 19 are installed on the worm gear shaft 17. The worm gear 15 and the worm 14 driven to rotate by the motor 13 are meshed and connected. The pinion 19 rotates with the worm gear 15. The teeth on the pinion 19 fit the teeth on the side of the locking toggle block 22. The rotation of the pinion 19 can drive the locking toggle block 22 to rotate. A worm gear buffer block 18 is also provided on the rotation path of the worm gear 15. The other side of the locking toggle block 22 relative to the worm gear shaft 17 is provided with an outward opening rocker arm shaft 29, on which an opening linkage plate 26, an opening toggle plate 28 and an outward opening rocker arm 27 are sequentially arranged, and an outward opening rocker arm return spring 30 is also arranged on the outward opening rocker arm shaft 29 for resetting the outward opening rocker arm 27. The upper cover plate 3 is covered above the lock body 2, and the upper cover plate 3 is provided with an inner opening rocker arm shaft 38, which is perpendicular to the horizontal plane of the lock body 2, and an inner opening rocker arm 36, a retaining spring 37 and an inner opening rocker arm return spring 39 are arranged on the inner opening rocker arm shaft 38, and the retaining spring 37 is used to fix the inner opening rocker arm shaft 38, and the inner opening rocker arm return spring 39 is used to resetting the inner opening rocker arm 36.

[0027] The above description of the structure is a description of the main structure of the present invention, and other structures not described in detail are installed and connected according to the relevant parts of the lock body in the prior art.

[0028] When the lock body of the present invention is in use, when the ratchet 8 rotates to a position where it engages with the pawl 9, the door is locked; when the outer opening pull wire or pull rod drives the outer opening rocker arm 27 to rotate, the outer opening rocker arm 27 acts on the opening toggle plate 28 and the opening linkage plate 26, to move the pawl pin 11, to push the pawl 9 away and separate it from the ratchet 8, and the door can be opened at this time; when the inner opening pull wire drives the inner opening rocker arm 36, the inner opening rocker arm 36 pushes the opening toggle plate 28 to rotate, and the opening toggle plate 28 drives the opening linkage plate 26 to move, which can push the pawl pin 11, so that the ratchet 8 and the pawl 9 are disengaged, and the door can be opened.

[0029] The implementation process of the anti-mislocking function of the present invention is as follows: when the vehicle door is in an open state and the inner opening rocker arm 36 or the outer opening rocker arm 27 has not been reset, through the action of the locking rocker arm 6, the locking toggle block 22 is driven to rotate through the pawl pin 11 and the opening linkage plate 26, and the locking toggle block 22 is rotated to the limit position of the anti-mislocking rocker arm 40, and the anti-mislocking rocker arm 40 prevents the locking toggle block 22 from returning to its original position, thereby avoiding the situation of accidentally locking the vehicle door.

[0030] In addition to the above-mentioned anti-mislocking function, the present invention can also realize the following conventional functions, and each function is briefly described below.

[0031] 1. Outward opening function: the outward opening rocker arm 27 pushes the opening toggle plate 28, and the opening toggle plate 28 drives the opening linkage plate 26, thereby toggling the ratchet pawl pin 11, pushing the ratchet pawl 9 to separate from the ratchet wheel 8, thereby opening the door lock.

[0032] 2. Inward opening function: the inward opening rocker arm 36 pushes the opening toggle plate 28, and the opening toggle plate 28 drives the opening linkage plate 26, thereby toggling the ratchet pawl pin 11, pushing the ratchet pawl 9 to separate from the ratchet wheel 8, thereby opening the door lock.

[0033] 3. Central control function: The motor 13 drives the worm gear 15 to rotate, directly acting on the pinion 19. The pinion 19 drives the locking toggle block 22 to rotate. The locking toggle block 22 pushes the opening linkage plate 26 to move, so that the opening linkage plate 26 is separated from the pawl pin 11, thereby realizing the unlocking function of the door lock.

[0034] 4. Key safety function: The outer locking rocker arm 20 directly acts on the locking toggle block 22 to separate the opening linkage plate 26 from the pawl pin 11, thereby realizing the unlocking function of the door lock.

[0035] 5. Double-pull unlocking function: In the locked state, the inner opening rocker arm 36 pushes the locking rocker arm 6 once, the locking rocker arm 6 drives the locking toggle block 22, the locking toggle block 22 pushes the opening linkage plate 26, the inner opening rocker arm 36 pushes the opening toggle plate 28 twice, the opening toggle plate 28 pushes the pawl pin 11, the pawl pin 11 drives the pawl 9 to move, releases the restriction on the ratchet wheel 8, realizes the inner opening function, and opens the door lock.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Those skilled in the art should understand that the specific implementation modes of the present invention may be modified or replaced by equivalents with reference to the above embodiments. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of protection of the pending claims.

Claims

1. A central locking assembly for a front door of an automobile, comprising a lower cover, a lock body and an upper cover, wherein a pawl and a ratchet shaft are provided on the horizontal surface of the lower cover respectively through the pawl shaft and the ratchet shaft, a pawl pin is provided on the pawl, and an inner opening rocker arm is provided on the upper cover; characterized in that: The ratchet shaft is also provided with an anti-mislocking rocker arm, and the rotating surface of the anti-mislocking rocker arm is parallel to the horizontal plane of the lock body; a locking rocker arm shaft is provided on the vertical surface of the lock body to install the locking rocker arm, and the rotating surface of the locking rocker arm is perpendicular to the horizontal plane of the lock body, and a locking toggle block is provided on the side of the locking rocker arm, and the locking toggle block is installed on the ratchet shaft, and the rotating surface of the locking toggle block is parallel to the horizontal plane of the lock body, and an opening linkage plate, an opening toggle plate and an outer-opening rocker arm are sequentially arranged on the outward-opening rocker arm shaft on the side of the locking toggle block; when the car door is opened and the inner-opening rocker arm or the outer-opening rocker arm is not reset, the locking toggle block is driven to rotate by operating the locking rocker arm through the ratchet pawl pin and the opening linkage plate in turn, and the locking toggle block rotates to the limit position of the anti-mislocking rocker arm, and the anti-mislocking rocker arm prevents the locking toggle block from returning to its position, so as to play an anti-mislocking function.

2. The automobile front door central locking assembly according to claim 1, characterized in that: The lock body is also provided with a motor, a worm, a worm wheel, a worm wheel return spring and a pinion. The motor drives the worm to rotate, the worm and the worm wheel are meshed and connected, the pinion is installed on the worm wheel and rotates with the worm wheel. The pinion is tooth-shapedly connected to the locking toggle block, and the worm wheel return spring is installed on the worm wheel shaft.

3. The automobile front door central locking assembly according to claim 2, characterized in that: The motor drives the worm wheel and the pinion to rotate, and the pinion drives the locking toggle block to rotate, so that the opening linkage plate is separated from the ratchet pin, and the ratchet is separated from the ratchet wheel, thereby unlocking the door lock.

4. The automobile front door central locking assembly according to claim 2, characterized in that: A worm gear buffer block is also provided on the lock body.

5. The automobile front door central locking assembly according to claim 1, characterized in that: A locking toggle buffer block is provided on the movement path of the locking toggle block.

6. The automobile front door central locking assembly according to claim 1, characterized in that: The locking toggle block is connected to one end of a locking toggle block torsion spring, and the other end of the locking toggle block torsion spring is fixed on a locking toggle block fixing shaft of the lock body.

7. The automobile front door central locking assembly according to claim 1, characterized in that: The outward opening rocker arm pushes the opening toggle plate to rotate, and drives the opening linkage plate to rotate, so as to toggle the ratchet pawl and the ratchet pin, so that the ratchet pawl and the ratchet wheel are separated, and the door lock is opened.

8. The automobile front door central locking assembly according to claim 1, characterized in that: The inner opening rocker arm pushes the opening toggle plate to rotate, and drives the opening linkage plate to rotate, so as to toggle the ratchet pawl and the ratchet pin, so that the ratchet pawl and the ratchet wheel are separated, and the door lock is opened.

9. The automobile front door central locking assembly according to claim 1, characterized in that: It also includes an outer locking rocker arm that directly acts on the locking toggle block to unlock the door lock.

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