Car sliding door lock

Abstract

This invention belongs to the field of automotive door lock technology and relates to an automotive sliding door lock, including a base plate mounted on an upper housing. A toothed plate is rotatably mounted on the base plate. A clutch arm and a self-closing rocker arm are rotatably mounted on the toothed plate. One end of the self-closing rocker arm can abut against a self-closing rocker arm actuating shaft and bushing on the clutch arm, and the other end of the self-closing rocker arm can actuate a ratchet. The ratchet is rotatably mounted on the base plate, and the ratchet engages with a pawl. The ratchet's slot engages with a lock groove on the base plate. The toothed plate is driven by a drive assembly. A shaft is fixedly mounted on the upper housing, and an opening transition plate and an opening rocker arm are sleeved on the shaft. The toothed plate can drive the opening transition plate to rotate, and the opening transition plate can drive the opening rocker arm to rotate. This invention integrates all the components of a door lock on the base plate and upper housing, enabling functions such as self-closing, electric opening, locking and unlocking, and door opening priority during use. The product is compact and highly integrated during assembly.

Description

Technical Field

[0001] This invention belongs to the field of automotive door lock technology and relates to an automotive sliding door lock. Background Technology

[0002] The sliding door lock control conversion mechanism is one of the most critical components in a sliding door system. It is mainly used to manually or via an electric locking device to control the locking and unlocking of the sliding door lock. At the same time, the sliding door lock control conversion mechanism must also meet the requirements of reliability and durability.

[0003] With the development of the automotive industry, higher requirements have been placed on vehicle performance. In the existing technology, the inward opening, outward opening, self-closing, locking and unlocking mechanisms of automotive side door locks are independent multiple mechanisms, which occupy a lot of space and have many connecting cables. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a sliding door lock for automobiles. This sliding door lock has a compact and reasonable structure, is easy and quick to assemble, and has a high degree of functional integration.

[0005] According to the technical solution of the present invention: a sliding door lock for automobiles, characterized in that: it includes a base plate, which is mounted on an upper housing. A toothed plate is rotatably disposed on the base plate. A clutch arm and a self-closing rocker arm are respectively rotatably disposed on the toothed plate. One end of the self-closing rocker arm can abut against and cooperate with the self-closing rocker arm actuating shaft and bushing on the clutch arm. The other end of the self-closing rocker arm can actuate a ratchet to rotate. The ratchet is rotatably disposed on the base plate. The ratchet cooperates with a pawl. The opening groove of the ratchet cooperates with the locking groove on the base plate. The toothed plate is driven by a drive assembly.

[0006] The upper housing is fixedly mounted on a shaft, and an opening transition plate and an opening rocker arm are sleeved on the mounting shaft. The toothed plate can drive the opening transition plate to rotate, the opening transition plate can drive the opening rocker arm to rotate, and the opening rocker arm can push the pawl linkage plate to rotate. The pawl linkage plate is mounted on the shaft of the pawl, and the opening rocker arm is provided with a limit lock pull wire mounting hole.

[0007] An outward-opening rocker arm and an inward-opening rocker arm are also fitted on the mounting shaft. The inward-opening rocker arm can drive the outward-opening rocker arm. An inward-opening pull wire mounting hole is provided on the inward-opening rocker arm to connect the inward-opening pull wire. An outward-opening pull wire mounting hole is provided on the outward-opening rocker arm to connect the outward-opening pull wire. A control motor is also installed on the upper housing. The control motor drives the gear on the upper housing to rotate. When the gear drives the locking rocker arm on the upper housing to rotate to the locked state, the outward-opening pull wire applies a clockwise pulling force to the outward-opening rocker arm or the inward-opening pull wire applies a clockwise pulling force to the inward-opening rocker arm, and the opening rocker arm remains stationary.

[0008] When the locking rocker arm rotates to the unlocking position, the outer opening pull wire applies a clockwise pulling force to the outer opening rocker arm or the inner opening pull wire applies a clockwise pulling force to the inner opening rocker arm. The opening linkage arm rotates clockwise around the mounting shaft, which actuates the opening linkage arm actuation shaft. The opening linkage arm actuation shaft is riveted to the opening rocker arm. The clockwise rotation of the opening rocker arm pushes the pawl linkage plate and pawl to rotate counterclockwise. Under the action of the spring force, the ratchet returns to its initial state counterclockwise along the ratchet shaft.

[0009] As a further improvement of the present invention, the clutch arm is rotatably mounted on the gear plate via a clutch arm shaft, and a first torsion spring is sleeved on the clutch arm shaft. One torsion arm of the first torsion spring is pressed against the gear plate, and the other torsion arm of the first torsion spring is pressed against the clutch arm.

[0010] The self-priming rocker arm is rotatably mounted on the toothed plate via a self-priming rocker arm shaft. A second torsion spring is sleeved on the self-priming rocker arm shaft. One torsion arm of the second torsion spring presses against the self-priming rocker arm, and the other torsion arm of the second torsion spring presses against the toothed plate.

[0011] As a further improvement of the present invention, the drive assembly is mounted on the upper housing, and the drive assembly includes a drive motor. The drive motor drives an output gear through a double gear and an output shaft, and the output gear meshes with a gear plate.

[0012] As a further improvement of the present invention, the locking rocker arm is also connected to a locking pull wire.

[0013] The technical advantages of this invention are as follows: By integrating the various components of a door lock onto the base plate and upper housing, the product of this invention can achieve functions such as self-closing, electric opening, locking and unlocking, and door opening priority during use. The product of this invention has a compact structure and a high degree of functional integration during assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is an exploded view of the present invention.

[0016] Figure 3 This is an exploded view of the upper housing assembly of the present invention.

[0017] Figure 4 This is an exploded view of the base plate assembly of the present invention.

[0018] Figure 5 This is a schematic diagram of the self-priming action of the present invention.

[0019] Figure 6 This is a schematic diagram of the self-priming action of the present invention.

[0020] Figure 7 This is a schematic diagram of the electric opening action of the present invention.

[0021] Figure 8 This is a schematic diagram of the locking and unlocking actions of the present invention.

[0022] Figure 9 This is a schematic diagram of the door opening priority action of the present invention. Detailed Implementation

[0023] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0024] Figures 1-9 The components include: 1. Front section of the top cover; 2. Brushed cover; 3. Locking brushed cover; 4. Outward opening brushed cover; 5. Inward opening brushed cover; 6. Limit lock brushed cover; 7. Base plate; 8. Ratchet shaft; 9. Inward opening rocker arm; 10. Locking top cover plate; 11. Opening rocker arm; 12. Opening linkage arm; 13. Locking rocker arm; 14. Pawl linkage plate; 15. Gear; 16. Opening transition plate; 17. Control motor; 18. Double gear; 19. Drive motor; 20. Upper housing; 21. Gear plate; 22. Output gear; 23. Output shaft; 24. Zero position signal switch; 25. Clutch arm; 26. Clutch arm shaft; 27. Switch contact plate; 28. Self-priming rocker arm. Arm shaft 28, self-priming rocker arm 29, lock body 30, ratchet 31, outward opening rocker arm 32, pawl 33, opening linkage arm actuating shaft 34, planetary gear 35, gear ring 36, planetary carrier 37, washer 38, gear cover plate 39, locking signal switch 40, opening signal switch 41, full lock signal switch 42, self-priming rocker arm actuating shaft sleeve 43, self-priming rocker arm actuating shaft 44, self-priming rocker arm rotation limit shaft 45, base plate connecting plate 46, cross-slot countersunk screw 47, pawl signal switch 48, full open signal switch 49, lower shaft sleeve 50, mounting shaft 51, etc.

[0025] like Figures 1-9 As shown, the present invention is a sliding door lock for automobiles, including a base plate 7, which is mounted on an upper housing 20. A toothed plate 21 is rotatably disposed on the base plate 7. A clutch arm 25 and a self-closing rocker arm 29 are respectively rotatably disposed on the toothed plate 21. One end of the self-closing rocker arm 29 can abut against a protrusion on the clutch arm 25, and the other end of the self-closing rocker arm 29 can actuate a ratchet 31. The ratchet 31 is rotatably disposed on the base plate 7 and engages with a pawl 33. The opening groove of the ratchet 31 engages with a lock groove on the base plate 7. The toothed plate 21 is driven by a drive assembly.

[0026] A shaft 51 is fixedly mounted on the upper housing. An opening transition plate 16 and an opening rocker arm 11 are sleeved on the shaft 51. The toothed plate 21 can drive the opening transition plate 16 to rotate. The opening transition plate 16 can drive the opening rocker arm 11 to rotate. The opening rocker arm 11 can push the pawl linkage plate 14 to rotate. The pawl linkage plate 14 is mounted on the shaft of the pawl 33. The opening rocker arm 11 is provided with a limit lock pull wire mounting hole.

[0027] An outward-opening rocker arm 32 and an inward-opening rocker arm 9 are also fitted onto the mounting shaft 51. The inward-opening rocker arm 9 can drive the outward-opening rocker arm 32. The inward-opening rocker arm 9 is provided with an inward-opening pull wire mounting hole to connect to the inward-opening pull wire 5. The outward-opening rocker arm 32 is provided with an outward-opening pull wire mounting hole to connect to the outward-opening pull wire 4. A control motor 17 is also installed on the upper housing 20. The control motor 17 drives the gear 15 on the upper housing to rotate. When the gear 15 drives the locking rocker arm 13 on the upper housing to rotate to the locked state, the outward-opening pull wire 4 applies a clockwise pulling force to the outward-opening rocker arm 32 or the inward-opening pull wire 5 applies a clockwise pulling force to the inward-opening rocker arm 9, keeping the opening rocker arm 11 stationary. It can be understood that the mounting shaft 51 is provided with the opening transition plate 16, the opening rocker arm 11, the outward-opening rocker arm 32, and the inward-opening rocker arm 9 in sequence from bottom to top.

[0028] When the locking rocker arm 13 rotates to the unlocking stop position, the outer opening pull wire 4 applies a clockwise pulling force to the outer opening rocker arm 32, or the inner opening pull wire 5 applies a clockwise pulling force to the inner opening rocker arm 9. This causes the opening linkage arm 12 to rotate clockwise around the mounting shaft 51, actuating the opening linkage arm actuating shaft 34. The opening linkage arm actuating shaft 34 is riveted to the opening rocker arm 11. The clockwise rotation of the opening rocker arm 11 pushes the pawl linkage plate 14 and pawl 33 to rotate counterclockwise. Under the action of the spring force, the ratchet 31 returns to its initial state counterclockwise along the ratchet shaft 8. The locking rocker arm 13 is also connected to the locking pull wire 3. Adjusting the position of the locking rocker arm 13 via the locking pull wire 3 also achieves the locking and unlocking functions. It can be understood that the opening linkage arm 12 is rotatably mounted on the outer opening rocker arm 32 via the opening linkage arm actuating shaft 34. A locking signal switch 40 and an opening signal switch 41 are also provided on the upper housing 20.

[0029] The clutch arm 25 is rotatably mounted on the gear plate 21 via the clutch arm shaft 26. The clutch arm shaft 26 is fitted with a first torsion spring. One torsion arm of the first torsion spring is pressed against the gear plate 21, and the other torsion arm of the first torsion spring is pressed against the clutch arm 25.

[0030] The self-priming rocker arm 29 is rotatably mounted on the toothed plate 21 via the self-priming rocker arm shaft 28. The self-priming rocker arm shaft 28 is fitted with a second torsion spring. One torsion arm of the second torsion spring is pressed against the self-priming rocker arm 29, and the other torsion arm of the second torsion spring is pressed against the toothed plate 21.

[0031] The drive assembly is mounted on the upper housing. The drive assembly includes a drive motor 19, which drives an output gear 22 through a double gear 18 and an output shaft 23. The output gear 22 meshes with a gear plate 21.

[0032] like Figures 1-6 As shown, during the operation of the product of this invention, when self-priming is performed: when the car door is closed, the latch pushes the ratchet 31 and pawl 33 to a half-locked state; the toothed plate 21 and the switch contact plate 27 are in the zero position. For example... Figure 3As shown, the drive motor 19 provides clockwise driving force to the output gear 22 through the double gear 18 and the output shaft 23. The gear plate 21 rotates counterclockwise under the meshing action of the saw teeth, driving the clutch arm 25 and the clutch arm shaft 26 to rotate, causing the self-closing rocker arm 29 to rotate counterclockwise along the self-closing rocker arm shaft 28; the self-closing rocker arm 29 pushes the ratchet 31 to rotate clockwise along the ratchet shaft 8; the pawl 33, under the action of the spring force, locks the ratchet 31, achieving a fully locked state and completing the door lock self-closing process; in specific production practice, a limiting housing is constructed on the upper housing 20, the drive motor 19 is installed inside the limiting housing, the output shaft is installed on the upper housing 20, and the output shaft 23 is mounted on... A planetary carrier 37 is mounted, on which three planetary gears 35 are evenly distributed. The planetary gears 35 mesh with a gear ring 36. A double gear 18 is also mounted on the output shaft 23. The double gear 18 is axially confined to the output shaft 23 by a lower bushing 50. The upper gear of the double gear 18 meshes with the threaded shaft of the drive motor 19, and the lower gear meshes with the planetary gears 35. During rotation, the planetary gears 35 drive the planetary carrier 37 to rotate, which in turn drives the output shaft 23 to rotate. The output shaft 23 then drives the output gear 22 to rotate, which meshes with the toothed portion of the gear plate 21, thereby causing the gear plate 21 to rotate. The output gear 22 is located on the output shaft 23 and on the bottom surface of the upper housing 20, and is covered by a gear cover plate 39. A switch contact plate 27 and a zero-position signal switch 24 are mounted on the base plate 7 to detect the rotation of the gear plate 21.

[0033] like Figure 4 As shown, the drive motor 19 then outputs a signal, which drives the gear 22 to rotate clockwise, causing the gear plate 21, clutch arm 25, and self-priming rocker arm 29 to return to the zero position.

[0034] When performing electric unlocking: if the door lock is in the fully locked state, Figure 5 As shown, the drive motor 19 outputs a signal, which drives the gear 22 to rotate counterclockwise via the output shaft 23, causing the toothed plate 21 to rotate clockwise. The toothed plate 21 pushes the opening transition plate 16 and the opening rocker arm 11 to rotate clockwise along the mounting shaft, thereby pushing the pawl linkage plate 14 and the pawl 33 to rotate counterclockwise. Under the action of the spring force, the ratchet 31 returns to its initial state counterclockwise along the ratchet shaft 8, completing the unlocking process.

[0035] Locking / Unlocking: When the door lock is in the fully locked state, the control motor 17 outputs a signal to drive the gear 15 to rotate, thus moving the locking rocker arm 13 to... Figure 6 The state shown is as follows. At this time, neither the outward-opening pull rod 4 applying a clockwise pulling force to the outward-opening rocker arm 32 nor the inward-opening pull rod 5 applying a clockwise pulling force to the inward-opening rocker arm 9 can rotate the opening rocker arm 11, and the door lock is in the locked state. When the control motor 17 outputs a signal to drive the gear 15 to rotate, it moves the locking rocker arm 13 to... Figure 7As shown in the diagram. At this time, the outward-opening pull rod 4 applies a clockwise pulling force to the outward-opening rocker arm 32, or the inward-opening pull rod 5 applies a clockwise pulling force to the inward-opening rocker arm 9. This causes the opening linkage arm 12 to rotate clockwise around the mounting shaft, simultaneously actuating the opening linkage arm actuating shaft 34. Figure 8 As shown, since the opening linkage arm actuating shaft 34 is riveted to the opening rocker arm 11, the clockwise rotation of the opening rocker arm 11 pushes the pawl linkage plate 14 and the pawl 33 to rotate counterclockwise. Under the action of the spring force, the ratchet 31 returns to its initial state counterclockwise along the ratchet shaft 8, realizing the unlocking and locking function. The above-mentioned locking and unlocking functions can also be achieved by controlling the locking pull wire 3 to adjust the position of the locking rocker arm 13.

Claims

1. A motor vehicle sliding door lock characterised in that: The bottom plate (7) is installed on the upper shell (20), a gear plate (21) is rotatably arranged on the bottom plate (7), a clutch arm (25) and a self-suction rocker arm (29) are rotatably arranged on the gear plate (21) respectively, one end of the self-suction rocker arm (29) can cooperate with a self-suction rocker arm driving shaft (44) and a self-suction rocker arm driving shaft sleeve (43) on the clutch arm (25), the other end of the self-suction rocker arm (29) can drive a ratchet wheel (31) to rotate, the ratchet wheel (31) is rotatably arranged on the bottom plate (7), the ratchet wheel (31) cooperates with a pawl (33), an opening slot of the ratchet wheel (31) cooperates with a locking slot on the bottom plate (7), and the gear plate (21) is driven by a driving assembly; The upper shell (20) is fixedly installed with a mounting shaft, an opening transition plate (16) and an opening rocker arm (11) are sleeved on the mounting shaft, the gear plate (21) can drive the opening transition plate (16) to rotate, the opening transition plate (16) can drive the opening rocker arm (11) to rotate, and the opening rocker arm (11) can drive a pawl linkage plate (14) to rotate, the pawl linkage plate (14) is installed on the shaft of the pawl (33), and the opening rocker arm (11) is provided with a limit lock wire mounting hole; The mounting shaft is also sleeved with an outer opening rocker arm (32) and an inner opening rocker arm (9), the inner opening rocker arm (9) can drive the outer opening rocker arm (32), the inner opening rocker arm (9) is provided with an inner opening wire mounting hole to be connected with an inner opening wire (5), the outer opening rocker arm (32) is provided with an outer opening wire mounting hole to be connected with an outer opening wire (4), and a control motor (17) is further installed on the upper shell (20), the control motor (17) drives a gear (15) on the upper shell to rotate, when the gear (15) drives a locking rocker arm (13) on the upper shell (20) to rotate to a locking state, the outer opening wire (4) applies a clockwise pulling force to the outer opening rocker arm (32) or the inner opening wire (5) applies a clockwise pulling force to the inner opening rocker arm (9), and the opening rocker arm (11) remains stationary; When the locking rocker arm (13) rotates to an unlocking state, the outer opening wire (4) applies a clockwise pulling force to the outer opening rocker arm (32) or the inner opening wire (5) applies a clockwise pulling force to the inner opening rocker arm (9), the opening linkage arm (12) rotates clockwise around the mounting shaft, drives an opening linkage arm driving shaft (34), the opening linkage arm driving shaft (34) is riveted to the opening rocker arm (11), the opening rocker arm (11) rotates clockwise to push the pawl linkage plate (14) and the pawl (33) to rotate counterclockwise, and the ratchet wheel (31) returns to the initial state counterclockwise along a ratchet wheel shaft (8) under the action of the spring force; the clutch arm (25) is rotatably arranged on the gear plate (21) through a clutch arm shaft (26), the clutch arm shaft (26) is sleeved with a first torsional spring, one torsional arm of the first torsional spring is pressed on the gear plate (21), and the other torsional arm of the first torsional spring is pressed on the clutch arm (25); The self-suction rocker arm (29) is rotatably arranged on the toothed plate (21) through a self-suction rocker arm shaft (28), the self-suction rocker arm shaft (28) is sleeved with a second torsion spring, one torsion arm of the second torsion spring is pressed against the self-suction rocker arm (29), and the other torsion arm of the second torsion spring is pressed against the toothed plate (21); the driving assembly is installed on the upper shell, and the driving assembly comprises a driving motor (19), the driving motor (19) drives an output gear (22) through a double gear (18) and an output shaft (23), and the output gear (22) is engaged with the toothed plate (21).

2. The automotive sliding door lock according to claim 1, wherein: The locking rocker arm (13) is further connected with a locking pull wire (3).

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