An integrated ice-breaking structure for a vehicle door lock

Abstract

An integrated ice-breaking structure for a car door lock, which relates to the field of automotive components, mainly includes a transmission rod, an ice-breaking arm, an opening module, an opening arm, a detent pawl and a clamping plate assembled in a bottom plate. A boss is provided at the top of the clamping plate, and the rotation of the clamping plate is controlled by pushing the boss. When the car door lock is opened to the half-locked state, the ice-breaking is realized by controlling the clamping plate to continue rotating. Specifically, the transmission rod continues to move leftward to a critical position, so that the clamping plate continues to rotate in the unlocking direction, pushing the lock pin, and then realizing ice-breaking and pushing open the car door. This car door lock with an integrated ice-breaking structure has a reasonable structural design, sensitive actions of each component, high product integration, can be matched with various existing vehicle models, and has a wide product applicability. It improves the situation that the car door cannot be opened due to icing existing in the existing car door lock. By designing an integrated ice-breaking structure, the ice-breaking function is added on the premise of not affecting the normal opening and closing of the lock, which is convenient for quickly opening the car door.

Description

Technical Field

[0001] The invention relates to the field of automobile parts, and in particular to an integrated ice-breaking structure for a vehicle door lock. Background Art

[0002] Car door locks are devices used to lock car doors and open or lock them through internally designed mechanical components. They have a safety protection function, which not only ensures that the car doors are reliably locked during normal driving, but also prevents them from being opened smoothly in the event of an accident. In northern China and the cold winter in southern China, when a vehicle is parked outdoors or driven for a period of time, the body of the vehicle is very likely to freeze, making it difficult to open the door and requiring external force, which will easily cause damage to the body or body. If you are trapped in the car and the door cannot be opened, it will cause a serious safety accident.

[0003] In order to solve the problem that the current car door locks cannot be opened smoothly due to ice and other conditions, it is necessary to design a car door lock with an ice-breaking structure. At present, there are some car door lock products with this function in the market, but such products have more or less complex structural design, poor linkage, poor stability and other phenomena, which is bound to bring certain safety hazards. Summary of the invention

[0004] The purpose of the present invention is to propose an integrated ice-breaking structure for a vehicle door lock, so as to improve the situation in which the vehicle door cannot be opened due to ice formation in the existing vehicle door lock, and to facilitate the rapid opening of the vehicle door by designing the integrated ice-breaking structure.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An integrated ice-breaking structure for a vehicle door lock mainly comprises a transmission rod, an ice-breaking arm, an opening module, an opening arm, a locking claw and a card plate which are assembled in a base plate. A boss is arranged on the top of the card plate. The rotation of the card plate is controlled by pushing the boss. When the vehicle door lock is opened to a semi-locked state, the card plate is controlled to continue to rotate to push the lock pin to achieve ice breaking.

[0007] As the preferred technical solution of the patent of the present invention, a rack is provided at one end of the transmission rod, and the rack is meshed with the transmission gear; the transmission gear is rotated by controlling the motor, thereby driving the rack to move; a first transmission rod pin shaft and a second transmission rod pin shaft are provided on both sides of the other end of the transmission rod, and the end of one end of the transmission rod pin shaft is provided as a locking part.

[0008] As a preferred technical solution of the patent of the present invention, a lifting platform is provided in the opening module, and the pin shaft of the first transmission rod is located on the lifting platform, and the lifting or falling back of one end of the transmission rod is achieved by the movement of the opening module.

[0009] As a preferred technical solution of the present invention patent, first ice-breaking arm pins and second ice-breaking arm pins are respectively arranged on both sides of the ice-breaking arm. On one side of the ice-breaking arm where the second ice-breaking arm pin is located, a hook-shaped unlocking part is arranged; the first ice-breaking arm pin is inserted into a strip-shaped groove arranged at a corresponding position on the bottom plate, and the strip-shaped groove is arranged obliquely, and the displacement of the ice-breaking arm moving left and right in the bottom plate is restricted by the strip-shaped groove; the second ice-breaking arm pin is inserted into a U-shaped groove arranged at a corresponding position on the bottom plate.

[0010] As a preferred technical solution of the present invention patent, a convex part is arranged in the middle of the ice-breaking arm, and a first groove and a second groove with outer arc and inner arc structures are respectively formed on both sides of the convex part.

[0011] As a preferred technical solution of the present invention patent, a tension spring is connected to one side of the ice-breaking arm where the second ice-breaking arm pin is located, and the tension spring is assembled in the bottom plate.

[0012] As a preferred technical solution of the present invention patent, one end of the opening module abuts against the top of the opening arm. When the opening module moves, it can push the opening arm to rotate, and then drive the rotation of the locking pawl, so as to control the separation and closing of the contact engagement point between the locking pawl and the clamping plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. When the car door needs to be opened, the opening module is controlled by the motor to move leftward, push the opening arm, and synchronously drive the locking pawl to rotate. The locking pawl disengages from the engagement point between it and the clamping plate. After the clamping plate is released from the limit, it can rotate in the unlocking direction. At the same time, the lifting platform on the opening module lifts one end of the transmission rod, and places the second transmission rod pin of the transmission rod in the second groove of the ice-breaking arm. The transmission rod moves leftward under the action of the transmission gear, so as to drive the ice-breaking arm to move leftward together. Since the unlocking part of the ice-breaking arm is located on the right side of the boss at the top of the clamping plate, the rotation of the clamping plate is driven by the unlocking part. Since the second groove has an inner arc structure, the second transmission rod pin will not actively disengage from the second groove.

[0015] 2. In order to achieve the ice-breaking function, the transmission rod continues to move leftward to the critical position, so that the clamping plate continues to rotate in the unlocking direction, push the lock pin, and then achieve ice-breaking. The side door of the commercial vehicle is completely opened. At this time, the ice-breaking arm has moved leftward to the critical position, and the second ice-breaking arm pin of the ice-breaking arm is at the top of the U-shaped groove on the bottom plate, so as to lift this end of the ice-breaking arm, so that the second transmission rod pin disengages from the second groove, and under the action of the tension spring, it returns to the initial position. After the opening module realizes the functions of rotating the locking pawl and lifting one end of the transmission rod, it immediately returns to the initial position.

[0016] 3. When the car door lock is closed, it is generally electrically closed to the semi-locked state. At this time, as the transmission rod moves to the right, the boss of the clamping plate is pushed through the locking part, causing the clamping plate to rotate in the locking direction. The locking pin is forced into the groove on the clamping plate and is firmly locked by it. At this time, the locking pawl and the clamping plate are abutted through the meshing point of their contact, blocking the clamping plate from rotating in the opening direction, making the car door unable to be opened. Thus, the suction process of the side car door of the commercial vehicle is completed.

[0017] 4. The car door lock applying the integrated ice-breaking structure proposed by this invention has a reasonable structural design, sensitive actions of each component, high product integration, can match various existing vehicle models, and has a wide product applicability. It improves the situation that the car door cannot be opened due to icing in the existing car door lock. By designing an integrated ice-breaking structure, the ice-breaking function is added on the premise of not affecting normal locking and unlocking, facilitating the quick opening of the car door. Brief Description of the Drawings

[0018] Figure 1 is the assembly drawing of the car door lock.

[0019] Figure 2 is the schematic structural diagram of the car door lock after removing the bottom plate.

[0020] Figure 3 is the schematic structural diagram of the transmission rod.

[0021] Figure 4 is the schematic structural diagram of the ice-breaking arm.

[0022] Figure 5 is the schematic structural diagram of the opening module.

[0023] The meanings of the reference numerals in the drawings are as follows:

[0024] Bottom plate - 1, strip groove - 11, U-shaped groove - 12.

[0025] Transmission rod - 2, first transmission rod pin shaft - 21, second transmission rod pin shaft - 22, locking part - 23, rack - 24.

[0026] Transmission gear - 3.

[0027] Ice-breaking arm - 4, first ice-breaking arm pin shaft - 41, second ice-breaking arm pin shaft - 42, unlocking part - 44, convex part - 43, first groove - 45, second groove - 46.

[0028] Opening module - 5, lifting platform - 51.

[0029] Opening arm - 6.

[0030] Locking pawl - 7.

[0031] Clamping plate - 8, boss - 81, meshing point - 82.

[0032] Tension spring - 9.

[0033] Lock pin - 10. Detailed implementation mode

[0034] The present invention provides an integrated ice-breaking structure for a car door lock, which can sequentially realize the electric opening and ice-breaking operation of the car door when the car door lock is in the fully locked state, so as to achieve the purpose of opening the car door. It is mainly applicable to the side door lock of a commercial vehicle.

[0035] As Figure 1 and 2 shown, this integrated ice-breaking structure for a car door lock mainly includes a transmission rod 2, an ice-breaking arm 4, an opening module 5, an opening arm 6, a stop claw 7 and a clamping plate 8. These structural components are assembled into a modular component through multiple groups of bottom plates 1. The cooperation between the stop claw 7 and the clamping plate 8 can realize the closing and opening of the car door lock. When the car door lock is closed, the stop claw 7 and the clamping plate 8 are abutted through the meshing point 82 in contact between the two. Without the rotation of the stop claw 7, the clamping plate 8 cannot rotate in the unlocking rotation direction. At this time, the lock pin 10 assembled and fixed on the vehicle body is firmly locked by the groove on the clamping plate 8, and the car door cannot be opened.

[0036] The rotation of the stop claw 7 is synchronously driven by the rotation of the opening arm 6. With the release of the limit of the stop claw 7, the conventional car door lock rotates the clamping plate 8 under the action of the torsion spring to realize the opening of the car door lock. However, in the case of icing, the car door is tightly combined with the vehicle body, and the car door cannot be completely opened. In view of this problem, the present invention provides a convex platform 81 on the top of the clamping plate 8, and designs an ice-breaking structure to push the convex platform 81 to control the rotation of the clamping plate 8. When it is opened to the half-locked state, by controlling the continuous rotation of the clamping plate 8, the lock pin 10 is pushed. Without the movement of the lock pin, the car door lock is separated from the vehicle body.

[0037] Please refer to Figure 3 together. One end of the transmission rod 2 is provided with a rack 24, and the rack 24 meshes with the transmission gear 3. The rotation of the transmission gear 3 (its connection with the motor is not shown in the figure) is controlled by the motor, so as to drive the movement of the rack 24. On both sides of the other end of the transmission rod 2, a first transmission rod pin 21 and a second transmission rod pin 22 are provided, and the end of the transmission rod pin is a locking part 23.

[0038] Please refer to Figure 4, on both sides of the ice-breaking arm 4, a first ice-breaking arm pin shaft 41 and a second ice-breaking arm pin shaft 42 are respectively arranged. On one side of the ice-breaking arm 4 where the second ice-breaking arm pin shaft 42 is located, a hook-shaped unlocking part 44 is arranged. At the same time, a convex part 43 is arranged in the middle of the ice-breaking arm 4. On both sides of the convex part 43, a first groove 45 and a second groove 46 with outer arc and inner arc structures are respectively formed. In addition, a tension spring 9 is connected to one side of the ice-breaking arm 4 where the second ice-breaking arm pin shaft 42 is located, and the tension spring 9 is assembled in the bottom plate 1.

[0039] When the ice-breaking arm 4 is assembled in the bottom plate 1, the first ice-breaking arm pin shaft 41 is inserted into a strip-shaped groove 11 arranged at the corresponding position of the bottom plate 1, and the strip-shaped groove 11 is arranged obliquely, and the displacement of the ice-breaking arm 4 moving left and right in the bottom plate 1 is restricted by the strip-shaped groove 11. The second ice-breaking arm pin shaft 42 is inserted into a U-shaped groove 12 arranged at the corresponding position of the bottom plate 1. Through the design of the U-shaped groove 12, in the initial position state of the ice-breaking arm 4, the second ice-breaking arm pin shaft 42 is at the bottom end of the U-shaped groove 12, and when the ice-breaking arm 4 moves to one side to the maximum displacement, the second ice-breaking arm pin shaft 42 is at the top end of the U-shaped groove 12, thereby lifting one end of the ice-breaking arm 4 (the end where the second ice-breaking arm pin shaft 42 is located).

[0040] Please refer to Figure 5 , the opening module 5 is assembled in the bottom plate 1, and its movement is controlled by the forward and reverse rotation of the motor (its connection with the motor is not shown in the figure). A lifting platform 51 is arranged in the opening module 5, and the first transmission rod pin shaft 21 is located on the lifting platform 51. Through the movement of the opening module 5, one end of the transmission rod 2 (the end where the first transmission rod pin shaft 21 is located) is lifted or lowered. At the same time, one end of the opening module 5 abuts against the top of the opening arm 6. When the opening module 5 moves, it can push the opening arm 6 to rotate, and then the rotation of the locking pawl 7 is realized, so as to control the separation and closing of the contact engagement point 82 between the locking pawl 7 and the clamping plate 8.

[0041] Based on Figure 2 From the perspective of the shown assembly structure, when the car door lock is in the closed state, the transmission rod 2, the ice-breaking arm 4 and the opening module 5 are located above the locking pawl 7 and the clamping plate 8. The unlocking part 44 of the ice-breaking arm 4 is placed on the right side of the boss 81 at the top of the clamping plate 8, and the locking part 23 at the right end of the transmission rod 2 is placed on the left side of the boss 81 at the top of the clamping plate 8. Therefore, when the transmission rod 2 moves to the right, it can push the clamping plate 8 to rotate in the locking direction, and when the ice-breaking arm 4 moves to the left, it can push the clamping plate 8 to rotate in the unlocking direction. At the same time, the second transmission rod pin shaft 22 of the transmission rod 2 is located below the second groove 46 of the ice-breaking arm 4, and the first transmission rod pin shaft 21 of the transmission rod 2 is located on the lifting platform 51 of the opening module 5 and is in a low position.

[0042] When the car door needs to be opened, the opening module 5 moves leftward through motor control, pushing the opening arm 6 and synchronously driving the detent 7 to rotate. The detent 7 disengages from the engagement point 82 between it and the clamping plate 8, and the clamping plate 8 can rotate in the unlocking direction after the limit is released. At the same time, the lifting platform 51 on the opening module 5 raises one end of the transmission rod 2 and places the second transmission rod pin 22 of the transmission rod 2 in the second groove 46 of the ice-breaking arm 4. The transmission rod 2 moves leftward under the action of the transmission gear 3, thereby driving the ice-breaking arm 4 to move leftward together. Since the unlocking part 44 of the ice-breaking arm 4 is located on the right side of the boss 81 at the top of the clamping plate 8, the rotation of the clamping plate 8 is driven by the unlocking part 44. Since the second groove 46 is of an inner arc structure, the second transmission rod pin 22 will not actively disengage from the second groove 46.

[0043] As the transmission rod 2 moves leftward to the middle position, the car door lock is in a semi-locked state at this time, and the lock pin 10 is in a new position ( Figure 2 as shown by the dotted line in the figure. At this time, the clamping plate has also rotated a certain angle, and its upper inner wall contacts the lock pin 10. The real-time position diagram of the clamping plate is not shown). To achieve the ice-breaking function, the transmission rod 2 continues to move leftward to the critical position, causing the clamping plate 8 to continue to rotate in the unlocking direction, pushing the lock pin 10, and then realizing ice-breaking. The side door of the commercial vehicle is completely opened.

[0044] At this time, the ice-breaking arm 4 has moved leftward to the critical position, and the second ice-breaking arm pin 42 of the ice-breaking arm 4 is at the top of the U-shaped groove 12 on the bottom plate 1, thereby lifting this end of the ice-breaking arm 4, so that the second transmission rod pin 22 disengages from the second groove 46 and returns to the initial position under the action of the tension spring 9. After the opening module 5 realizes the functions of rotating the detent 7 and lifting one end of the transmission rod 2 (making the second transmission rod pin 22 snap into the second groove 46 of the ice-breaking arm 4), it immediately returns to the initial position.

[0045] When the car door lock is closed, it is generally electrically closed to the semi-locked state ( Figure 2 as shown by the dotted line in the figure. At this time, the lower inner wall of the clamping plate contacts the lock pin 10. The real-time position diagram of the clamping plate is not shown). At this time, as the transmission rod 2 moves rightward, the boss 81 of the clamping plate 8 is pushed through the locking part 23, causing the clamping plate 8 to rotate in the locking direction. The lock pin 10 is forced into the groove on the clamping plate 8 and is firmly locked by it. At this time, the detent 7 and the clamping plate 8 abut against each other through the engagement point 82 in contact between the two, blocking the clamping plate 8 from rotating in the opening direction and making the car door unable to be opened. Thus, the suction process of the side door of the commercial vehicle is completed.

[0046] It should be noted that the side door of the commercial vehicle moves on a slide rail (mostly straight and bent at the ends). When opening the door, the limit is first released and the door is pushed open to the semi-locked state, then the door lock is fully opened through the ice-breaking structure, and finally the door is moved backward by the electric control mechanism. When closing the door, first the door is moved forward to the semi-locked state by the electric control mechanism, and then the full closing of the door lock is achieved through the rotation of the clamping plate to complete the suction of the door.

[0047] The above content is only an example and illustration of the concept of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, as long as they do not deviate from the concept of the invention or exceed the scope defined by this claims, they should fall within the protection scope of the present invention.

Claims

1. An integrated ice-breaking structure for a vehicle door lock, characterized in that, It mainly includes a transmission rod, an ice-breaking arm, an opening module, an opening arm, a detent pawl and a clamping plate assembled in the bottom plate. A boss is provided at the top of the clamping plate, and the rotation of the clamping plate is controlled by pushing the boss. When the car door lock is opened to the half-locked state, the clamping plate is controlled to continue rotating to push the lock pin to achieve ice breaking. A rack is provided at one end of the transmission rod, and the rack meshes with a transmission gear. The rotation of the transmission gear is controlled by a motor to drive the rack to move. First transmission rod pins and second transmission rod pins are provided on both sides of the other end of the transmission rod, and the end of the transmission rod pin is a locking part. A lifting platform is provided in the opening module, and the first transmission rod pin is located on the lifting platform. The lifting or falling of one end of the transmission rod is realized by the movement of the opening module. First ice-breaking arm pins and second ice-breaking arm pins are respectively provided on both sides of the ice-breaking arm. A hook-shaped unlocking part is provided on one side of the ice-breaking arm where the second ice-breaking arm pin is located. The first ice-breaking arm pin is inserted into a strip-shaped groove provided at the corresponding position of the bottom plate, and the strip-shaped groove is arranged obliquely to limit the displacement of the ice-breaking arm moving left and right in the bottom plate. The second ice-breaking arm pin is inserted into a U-shaped groove provided at the corresponding position of the bottom plate. A convex part is provided in the middle of the ice-breaking arm, and first grooves and second grooves with outer arc and inner arc structures are respectively formed on both sides of the convex part. A tension spring is connected to one side of the ice-breaking arm where the second ice-breaking arm pin is located, and the tension spring is assembled in the bottom plate. One end of the opening module abuts against the top of the opening arm. When the opening module moves, it can push the opening arm to rotate, and then drive the detent pawl to rotate, so as to control the separation and closing of the contact meshing point between the detent pawl and the clamping plate.

2. A car door lock applying the integrated ice-breaking structure as claimed in claim 1.

3. The working method of the car door lock according to claim 2, characterized in that, Specifically: When the car door lock is in the closed state, the transmission rod, the ice-breaking arm and the opening module are located above the detent pawl and the clamping plate. The unlocking part of the ice-breaking arm is located on the right side of the boss at the top of the clamping plate, and the locking part at the right end of the transmission rod is located on the left side of the boss at the top of the clamping plate. Therefore, when the transmission rod moves to the right, it pushes the clamping plate to rotate in the locking direction, and when the ice-breaking arm moves to the left, it can push the clamping plate to rotate in the unlocking direction. At the same time, the second transmission rod pin of the transmission rod is located below the second groove of the ice-breaking arm, and the first transmission rod pin of the transmission rod is located on the lifting platform of the opening module and is at a low position. When the car door needs to be opened, the opening module is controlled to move to the left by the motor, pushing the opening arm and synchronously driving the detent pawl to rotate. The detent pawl disengages from the meshing point between it and the clamping plate. After the clamping plate is released from the limit, it can rotate in the unlocking direction. At the same time, the lifting platform on the opening module raises one end of the transmission rod and places the second transmission rod pin of the transmission rod in the second groove of the ice-breaking arm. The transmission rod moves to the left under the action of the transmission gear, driving the ice-breaking arm to move to the left together. Since the unlocking part of the ice-breaking arm is located on the right side of the boss at the top of the clamping plate, the rotation of the clamping plate is driven by the unlocking part. Since the second groove has an inner arc structure, the second transmission rod pin will not actively disengage from the second groove. As the transmission rod moves leftward to the middle position, the car door lock is in a semi-locked state at this time, and the lock pin is in a new position; by continuously moving the transmission rod leftward to the critical position, the clamping plate continues to rotate in the unlocking direction, pushing the lock pin, and then ice breaking is achieved; the side door is fully opened; At this time, the ice-breaking arm has moved leftward to the critical position, and the second ice-breaking arm pin shaft of the ice-breaking arm is at the top of the U-shaped groove on the bottom plate, thereby lifting this end of the ice-breaking arm, so that the second transmission rod pin shaft disengages from the second groove and returns to the initial position under the action of the tension spring; After the opening module realizes the functions of rotating the detent pawl and lifting one end of the transmission rod, it immediately returns to the initial position; When the car door lock is closed, as the transmission rod moves rightward, the convex platform of the clamping plate is pushed through the locking part, causing the clamping plate to rotate in the locking direction; forcing the lock pin to enter the groove on the clamping plate and being firmly locked by it; at this time, the detent pawl and the clamping plate are in contact with each other through the meshing point between them, blocking the clamping plate from rotating in the opening direction, making the car door unable to be opened; thus completing the suction process of the side door.

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