Automobile door lock icebreaking mechanism

Abstract

The invention relates to the technical field of automobile door locks, in particular to an icebreaking mechanism for an automobile door lock. A connecting rod mechanism for pushing the pawl to rotate is mounted between the ratchet wheel and the turntable; the actuator assembly is connected with one end of the turntable, and the other end of the turntable is riveted with a first push rod; an icebreaking rocker arm is riveted to one side of the ratchet wheel, a hook head used for hooking the ratchet wheel is arranged at one end of the icebreaking rocker arm, a second push rod is riveted to the other end of the icebreaking rocker arm, and the working end of the first push rod is close to one end of the second push rod, pushed through a connecting rod mechanism and abuts against one end of the second push rod. The first push rod is provided with a limiting surface on which the baffle is pushed by a riveting shaft of the clutch rocker arm to break ice, and the first push rod is in contact with the riveting shaft in the whole movement process; when the clutch rocker arm does not push the first push rod away, the first push rod cannot push the second push rod, so that ice breaking is stopped; when the vehicle door is in a frozen state, the actuator assembly provides ice breaking force to push away the ratchet wheel, so that the vehicle door and the vehicle body are pushed away, and freezing breaking is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile door locks, in particular to an automobile door lock ice-breaking mechanism. Background Art

[0002] Frozen car door locks are a common problem in winter. In cold temperatures, car doors can freeze, preventing the car's seal from opening. This forces the user to pry open the door, pour hot water on the lock cylinder, wait for the heat to melt the ice, or use a dedicated lock defrost, especially for cars with hidden handles. This is why door lock de-icing features are so popular. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: in order to solve the problems existing in the prior art in the above-mentioned background technology, an automobile door lock ice-breaking mechanism is provided, which can provide an execution assembly in the door lock to provide ice-breaking force when the car door is frozen, push open the ratchet, and thus disengage the car door from the car body, thereby achieving ice-breaking.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an automobile door lock ice-breaking mechanism, comprising a lock body, on which a ratchet, a pawl, a rotary disk and an actuator assembly are installed, and a connecting rod mechanism for driving the pawl to rotate is installed between the ratchet and the rotary disk;

[0005] The actuator assembly is connected to one end of the turntable, and the other end of the turntable is riveted with a first push rod;

[0006] An ice-breaking rocker arm is riveted to one side of the ratchet, and the ice-breaking rocker arm is set away from the pawl. One end of the ice-breaking rocker arm is provided with a hook head for hooking the ratchet. The other end of the ice-breaking rocker arm is riveted to a second push rod. The working end of the first push rod is close to one end of the second push rod. The working end of the first push rod is pushed by the connecting rod mechanism and is against one end of the second push rod.

[0007] Furthermore, a cover plate is installed on one side of the lock body, and a base plate is installed on the other side of the lock body. A pawl shaft, a ratchet shaft and a turntable rivet shaft are installed between the cover plate and the base plate. The ratchet is installed at one end of the ratchet shaft, the connecting rod mechanism is installed at the other end of the ratchet shaft, the pawl is installed at one end of the pawl shaft, and the other end of the pawl shaft is connected to the base plate. The turntable is installed on the turntable rivet shaft, and the connecting rod mechanism is sleeved on the turntable rivet shaft.

[0008] Furthermore, the connecting rod mechanism includes a clutch rocker arm, an unlocking link and an unlocking rocker arm. The clutch rocker arm is installed on the ratchet shaft, the clutch rocker arm is connected to one end of the unlocking link, and the other end of the unlocking link is connected to one end of the unlocking rocker arm. The unlocking rocker arm at the same end connected to the unlocking link is provided with a fork for driving the ratchet pawl to rotate, and the other end of the unlocking rocker arm is sleeved on the turntable rivet shaft.

[0009] Furthermore, the clutch rocker arm has a first arm, a second arm and a third arm. A downwardly extending extension portion is provided on one side of the first arm. The second arm and the unlocking link are riveted through a third axis. The end of the third arm is bent downward to form a bent end. A riveted column is installed on the end face of the bent end, and a limiting tongue extending outward is provided on the side of the bent end.

[0010] Furthermore, a protrusion is provided on one side of the turntable for limiting cooperation with a limiting tongue in the connecting rod mechanism.

[0011] Furthermore, one end of the first push rod is installed on the cover plate of the lock body through the first push rod shaft, one end of the turntable is sleeved on the first push rod shaft, the other end of the first push rod shaft is installed with a push rod riveted shaft, a baffle is provided on the top surface of the first push rod, and one end of the baffle is provided with a first limiting protrusion extending upward.

[0012] Furthermore, a second limiting protrusion extending downward is provided on the turntable, and the second limiting protrusion is matched with the first limiting protrusion on the first push rod for limiting.

[0013] Furthermore, the lock body is provided with an installation chamber for installing the motor and a gear installation chamber for installing the gear, the gear is installed with a block that cooperates with the first arm of the clutch rocker arm, and the gear installation chamber is located above the ice-breaking rocker arm.

[0014] Furthermore, an inner protrusion is provided on the lock body, and the inner protrusion is located above the contact between the pawl and the ratchet wheel. The inner protrusion limits the rotation angle of the unlocking rocker arm and the pawl.

[0015] Furthermore, a limit is formed between the hook end of the ice-breaking rocker arm and the inner wall of the lock body.

[0016] Beneficial effects of the present invention:

[0017] 1. The first push rod of the present invention has a baffle that can break the ice when pushed by the riveted shaft of the clutch rocker arm. The first push rod is in contact with the riveted shaft throughout its movement. When the clutch rocker arm does not push the first push rod, the first push rod cannot push the second push rod, thus preventing the ice from breaking and realizing the unlocking function.

[0018] 2. An ice-breaking mechanism is added within a limited space. When the door is frozen, the actuator assembly provides ice-breaking force to push the ratchet, thereby moving the door and the body together. This breaks the ice without affecting the closing function, thus reducing product costs and saving the space occupied by the door lock in the vehicle.

[0019] 3. The door is opened by the ratchet, which is separated from the body lock by the sealing reaction force of the door. However, if the door is frozen, the sealing reaction force cannot complete the door opening action. In this case, the ice breaking function can be activated. Since it combines the unlocking and ice breaking functions at the same time, the versatility of the product is improved.

[0020] 4. An internal protrusion is set in the lock body to slow down the return speed of the ratchet and achieve the effect of reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 This invention Figure 1 Rear view;

[0024] Figure 3 1 is a schematic structural diagram of the actuator assembly of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the present invention after removing the actuator assembly and the base plate;

[0026] Figure 5 This invention Figure 4 Rear view;

[0027] Figure 6 This is a diagram showing the state in which the ratchet of the present invention is disengaged from the vehicle body lock to complete the door opening;

[0028] Figure 7 It is a state diagram of the ice-breaking state of the present invention;

[0029] Figure 8 This is a state diagram after the present invention completes ice breaking;

[0030] Figure 9 It is a schematic structural diagram of the clutch rocker arm of the present invention;

[0031] In the figure: 1, lock body; 1-1, limit surface; 1-4, inner wall; 2, clutch rocker arm; 2-1, riveted column; 3, third shaft; 4, unlocking connecting rod; 5, cover plate; 6, sixth shaft; 7, unlocking rocker arm; 8, turntable riveted shaft; 9, turntable; 9-1, second limit protrusion; 10, actuator assembly; 11, first push rod shaft; 12, first push rod; 12-2, baffle; 12-3, push rod riveted shaft; 12-4, first limit protrusion; 1 3. Base plate; 14. Pawl; 15. Pawl shaft; 16. Ratchet; 16-1. Surface; 16-2. Semi-locking meshing surface; 17. Ratchet shaft; 18. Second push rod; 18-1. Contact surface 19. Ice-breaking rocker arm; 20. Ice-breaking shaft; 21. Second push rod shaft; 22. Installation chamber; 23. Gear installation chamber; 24. First arm; 25. Second arm; 26. Third arm; 27. Extension; 30. Inner protrusion; 31. Limit tongue. DETAILED DESCRIPTION

[0032] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0033] like Figures 1 to 9 The illustrated embodiment of an automobile door lock ice-breaking mechanism comprises a lock body 1, on which a ratchet 16, a pawl 14, a rotary disk 9, and an actuator assembly 10 are mounted. A connecting rod mechanism for driving the pawl 14 to rotate is mounted between the ratchet 16 and the rotary disk 9.

[0034] The actuator assembly 10 is connected to one end of the turntable 9 through its circular die-cast head. The actuator assembly 10 can pull the turntable 9 to rotate counterclockwise. The other end of the turntable 9 is riveted with a first push rod 12.

[0035] An icebreaking rocker arm 19 is riveted to one side of the ratchet 16 through the second push rod shaft 21. The icebreaking rocker arm 19 is arranged away from the pawl 14. One end of the icebreaking rocker arm 19 is provided with a hook head for hooking the ratchet 16. The other end of the icebreaking rocker arm 19 is riveted to the second push rod 18 through the icebreaking shaft 20. The working end of the first push rod 12 is close to one end of the second push rod 18. The working end of the first push rod 12 is pushed by the connecting rod mechanism and is against one end of the second push rod 18. When the clutch rocker arm 2 does not push the first push rod 12 away, the first push rod 12 cannot push the second push rod 18, thereby preventing the execution of ice breaking.

[0036] In addition, the first push rod 12 has a push rod riveted shaft 12-3 that pushes the second push rod 18 through the contact surface 18-1. The center of the contact surface 18-1 coincides with the rotation center, so that the force on the second push rod 18 is directed to the center at any position.

[0037] The lock body 1 has a limit surface, so that the entire movement trajectory of the second push rod 18 is on the limit surface.

[0038] A cover plate 5 is mounted on one side of the lock body 1, and a base plate 13 is mounted on the other side of the lock body 1. A pawl shaft 15, ratchet shaft 17, and turntable rivet shaft 8 are mounted between the cover plate 5 and the base plate 13. The ratchet 16 is mounted on one end of the ratchet shaft 17, and the connecting rod mechanism is mounted on the other end of the ratchet shaft 17. The pawl 14 is mounted on one end of the pawl shaft 15, and the other end of the pawl shaft 15 is connected to the base plate 13. The turntable 9 is mounted on the turntable rivet shaft 8, and the connecting rod mechanism is sleeved on the turntable rivet shaft 8. In other words, the ratchet 16 is riveted between the cover plate 5 and the base plate 13 via the ratchet shaft 17 and can rotate freely; the pawl 14 is riveted between the cover plate 5 and the base plate 13 via the pawl shaft 15 and can rotate freely; and the turntable 9 is riveted between the cover plate 5 and the base plate 13 via the turntable rivet shaft 8 and can rotate freely.

[0039] The connecting rod mechanism includes a clutch rocker arm 2, an unlocking link 4 and an unlocking rocker arm 7. The connecting rod mechanism and the pawl 14 form a four-bar mechanism. Rotating the clutch rocker arm 2 counterclockwise causes the pawl 14 to rotate clockwise. The clutch rocker arm 2 is installed on the ratchet shaft 17. The clutch rocker arm 2 is connected to one end of the unlocking link 4. The other end of the unlocking link 4 is riveted to one end of the unlocking rocker arm 7 through the sixth shaft 6 and can rotate freely. The unlocking rocker arm 7 at the same end connected to the unlocking link 4 is provided with a fork for driving the pawl 14 to rotate. The other end of the unlocking rocker arm 7 is sleeved on the turntable rivet shaft 8.

[0040] like Figure 9 As shown, the clutch rocker arm 2 has a first arm 24, a second arm 25 and a third arm 26. A side edge of the first arm 24 is provided with an extension portion 27 extending downward. The second arm 25 and the unlocking link 4 are riveted to each other through the third shaft 3 and can rotate freely. The end of the third arm 26 is bent downward to form a bent end. A rivet column 2-1 is installed on the end face of the bent end, and a limiting tongue 31 extending outward is provided on the side edge of the bent end.

[0041] One end of the first push rod 12 is riveted to the cover plate 5 of the lock body 1 through the first push rod shaft 11 and can rotate freely. One end of the turntable 9 is sleeved on the first push rod shaft 11. The other end of the first push rod shaft 11 is installed with a push rod riveted shaft 12-3. A baffle 12-2 is provided on the top surface of the first push rod 12, and one end of the baffle 12-2 is provided with a first limiting protrusion 12-4 extending upward.

[0042] Among them, the baffle 12-2 acts as a limit plate for breaking ice under the push of the riveted column 2-1, and the first push rod 12 is in contact with the riveted column 2-1 throughout the entire movement.

[0043] A second limiting protrusion 9 - 1 extending downward is provided on the turntable 9 , and the second limiting protrusion 9 - 1 is matched with the first limiting protrusion 12 - 4 on the first push rod 12 for limiting.

[0044] like Figure 1 As shown, the lock body 1 is provided with an installation chamber 22 for installing a motor and a gear installation chamber 23 for installing a gear. A block is installed on the gear to cooperate with the first arm 24 of the clutch rocker arm 2. The gear installation chamber 23 is located above the ice-breaking rocker arm 19, and a limit is formed between the hook end of the ice-breaking rocker arm 19 and the inner wall 1-4 of the lock body 1.

[0045] like Figure 4 As shown, the lock body 1 is provided with an inner protrusion 30, which is located above the contact between the pawl 14 and the ratchet 16. The inner protrusion 30 limits the rotation angle of the unlocking rocker arm 7 and the pawl 14. The inner protrusion 30 does not limit the rotation angle. The inner protrusion 30 plays a role in slowing down the return speed of the ratchet and reducing noise. The unlocking rocker arm 7 is limited at the limit surface 1-1.

[0046] Exercise process:

[0047] Locked state:

[0048] When the door is locked, the ratchet 16 and the pawl 14 are engaged through the surface 16 - 1 when the door is fully locked; when the door is unlocked, the pawl 14 is opened and the ratchet 16 can rotate freely.

[0049] Step 1: The motor (not shown) drives the gear (not shown) to rotate. When the gear rotates, it pushes the clutch rocker arm 2 to rotate counterclockwise;

[0050] Step 2: When the clutch rocker arm 2 rotates counterclockwise, it pushes the unlocking link 4 to move, thereby driving the unlocking rocker arm 7 to push the pawl 14 to rotate, and the pawl 14 is separated from the ratchet 16;

[0051] Step 3: At the same time, the riveted column 2-1 on the clutch rocker arm 2 also pushes the first push rod 12 to move outward, pushing the first push rod 12 away, and the first push rod 12 and the pawl 14 are linked together, as shown in FIG. Figure 6 As shown, at this time, the ratchet 16 is separated from the body lock under the action of the door closing reaction force to complete the door opening;

[0052] Ice breaking status:

[0053] When the door is frozen, the sealing reaction force is not enough to complete the door opening action. At this time, the ice breaking function can be activated.

[0054] Step 4: When the pawl 14 is separated from the ratchet wheel, the actuator 10 causes the first push rod 12 to move forward along the baffle 12-2. A push rod riveted shaft 12-3 on the push rod 12 pushes the second push rod 18 through the contact surface 18-1, and then the second push rod 18 drives the ice-breaking rocker arm 19 to rotate counterclockwise.

[0055] Step 5: One end of the ice-breaking rocker arm 19 hooks the ratchet 16, and under the force of the motor, the ratchet 16 is pushed to rotate clockwise, and the ratchet 16 forcibly drives the car door to break the ice and open the door. The half-locked meshing surface 16-2 of the ratchet 16 exceeds the meshing surface of the pawl 14, as shown in FIG. Figure 7 As shown, finally, the actuator 10 reverses and returns to its original position, and all moving parts return to wait for the next ice breaking, as shown in FIG. Figure 8 shown.

[0056] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. An automobile door lock ice-breaking mechanism, characterized by: The invention comprises a lock body (1), wherein a ratchet (16), a pawl (14), a rotary disk (9) and an actuator assembly (10) are installed on the lock body (1), and a connecting rod mechanism for driving the pawl (14) to rotate is installed between the ratchet (16) and the rotary disk (9); The actuator assembly (10) is connected to one end of the turntable (9), and the other end of the turntable (9) is riveted with a first push rod (12); An ice-breaking rocker arm (19) is riveted to one side of the ratchet (16), and the ice-breaking rocker arm (19) is arranged away from the pawl (14). One end of the ice-breaking rocker arm (19) is provided with a hook head for hooking the ratchet (16). The other end of the ice-breaking rocker arm (19) is riveted to a second push rod (18). The working end of the first push rod (12) is close to one end of the second push rod (18). The working end of the first push rod (12) is pushed by the connecting rod mechanism and abuts against one end of the second push rod (18).

2. The automobile door lock ice-breaking mechanism according to claim 1, characterized in that: A cover plate (5) is installed on one side of the lock body (1), and a base plate (13) is installed on the other side of the lock body (1). A pawl shaft (15), a ratchet shaft (17) and a turntable rivet shaft (8) are installed between the cover plate (5) and the base plate (13). The ratchet (16) is installed on one end of the ratchet shaft (17), and the connecting rod mechanism is installed on the other end of the ratchet shaft (17). The pawl (14) is installed on one end of the pawl shaft (15), and the other end of the pawl shaft (15) is connected to the base plate (13). The turntable (9) is installed on the turntable rivet shaft (8), and the connecting rod mechanism is sleeved on the turntable rivet shaft (8).

3. The automobile door lock ice-breaking mechanism according to claim 2, characterized in that: The connecting rod mechanism comprises a clutch rocker arm (2), an unlocking link (4) and an unlocking rocker arm (7); the clutch rocker arm (2) is mounted on a ratchet shaft (17); the clutch rocker arm (2) is connected to one end of the unlocking link (4); the other end of the unlocking link (4) is connected to one end of the unlocking rocker arm (7); a shift fork for shifting a ratchet pawl (14) to rotate is provided on the unlocking rocker arm (7) at the same end connected to the unlocking link (4); the other end of the unlocking rocker arm (7) is sleeved on a turntable rivet shaft (8).

4. The automobile door lock ice-breaking mechanism according to claim 3, characterized in that: The clutch rocker arm (2) has a first arm (24), a second arm (25) and a third arm (26). A side edge of the first arm (24) is provided with an extension portion (27) extending downward. The second arm (25) and the unlocking link (4) are riveted together via a third shaft (3). The end of the third arm (26) is bent downward to form a bent end. A riveted column (2-1) is installed on the end surface of the bent end. A limiting tongue (31) extending outward is provided on the side edge of the bent end.

5. The automobile door lock ice-breaking mechanism according to claim 1, characterized in that: One end of the first push rod (12) is mounted on the cover plate (5) of the lock body (1) through a first push rod shaft (11); one end of the rotary disc (9) is sleeved on the first push rod shaft (11); a push rod riveted shaft (12-3) is mounted on the other end of the first push rod shaft (11); a baffle (12-2) is provided on the top surface of the first push rod (12); and one end of the baffle (12-2) is provided with a first limiting protrusion (12-4) extending upward.

6. The automobile door lock ice-breaking mechanism according to claim 1, characterized in that: The rotating disk (9) is provided with a second limiting protrusion (9-1) extending downward, and the second limiting protrusion (9-1) is matched with the first limiting protrusion (12-4) on the first push rod (12) for limiting.

7. The automobile door lock ice-breaking mechanism according to claim 1, characterized in that: The lock body (1) is provided with an installation chamber (22) for installing a motor and a gear installation chamber (23) for installing a gear. A stopper that cooperates with a first arm (24) of a clutch rocker arm (2) is installed on the gear. The gear installation chamber (23) is located above the ice-breaking rocker arm (19).

8. The automobile door lock ice-breaking mechanism according to claim 1, characterized in that: The lock body (1) is provided with an inner protrusion (30), which is located above the contact between the pawl (14) and the ratchet (16). The inner protrusion (30) limits the rotation angle of the unlocking rocker arm (7) and the pawl (14).

9. The automobile door lock ice-breaking mechanism according to claim 1, characterized in that: A limit is formed between the hook end of the ice-breaking rocker arm (19) and the inner wall of the lock body (1).

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