Manual safety locking and unlocking mechanism for automobile side door lock in emergency

Abstract

The utility model discloses a manual safety locking and unlocking mechanism for an automobile side door lock in emergency, a central locking rod is matched on a support in a sliding manner, and elastic structures for limiting the central locking rod at a safety locking position or a safety unlocking position are arranged on the support and the central locking rod; a release plate is in stirring connection with a coupling rod which is rotationally matched with the central locking rod; the shifting structure is used for manually shifting the central locking rod to an upper insurance position or an unlocking position; according to the upper safety position, one end of the central locking rod is located at the preset position of one end of the support, and the shifting end of the release plate is located at the position which is staggered with the free end of the coupling rod and cannot shift the coupling rod. According to the unlocking position, the other end of the central locking rod is located at the preset position of the other end of the support, and the shifting end of the releasing plate is located at the position where the shifting end and the free end of the coupling rod are transversely overlapped and the coupling rod can be shifted. The mechanism is flexible, stable and reliable in transmission in the safety loading and unloading processes, and relatively low in cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive door lock technology, specifically to a mechanism for manually engaging and disengaging the insurance on an automotive side door lock in an emergency. Background Technology

[0002] Existing automotive side door locks are a mature technology. In practical applications, there are sometimes emergencies such as a complete power outage of the car, a malfunction of the car's electrical control components, a power outage of the side door lock, or a malfunction of the side door lock motor. Therefore, existing automotive side door locks are generally equipped with a mechanism for manually engaging and disengaging the lock in an emergency.

[0003] However, existing automotive side door lock technology still has the following shortcomings in actual use, particularly in the context of manual insurance application and settlement by insurance institutions in emergency situations:

[0004] 1. In emergency situations, the locking and unlocking mechanisms of existing automotive side door locks rely on rotary motion, which can easily lead to jamming between components. The flexibility, reliability, stability, and efficiency of the transmission all need improvement. 2. Existing electric locking and unlocking mechanisms for automotive side door locks have numerous components, a relatively complex structure, and are relatively cumbersome to assemble. Assembly efficiency is relatively low, and material and labor costs are relatively high, resulting in a lack of significant price competitiveness in the market. Utility Model Content

[0005] The technical problem this utility model aims to solve is to provide a manual locking and unlocking mechanism for automotive side door locks in emergency situations that is flexible, stable, reliable, and relatively low in cost.

[0006] The technical solution of this utility model is to provide a mechanism for manually applying and removing insurance on a car side door lock in an emergency, comprising:

[0007] A central locking rod is slidably fitted on a support, and the support and the central locking rod have elastic structures that limit the central locking rod to the upper safety position or the unlocked position;

[0008] A release plate is rotatably connected to a coupling rod on the central locking rod; the emergency locking and unlocking mechanism of this vehicle side door lock also includes a release plate return spring and a coupling rod return spring.

[0009] The emergency locking and unlocking mechanism of the car side door lock of this utility model also includes a toggle structure for manually moving the central locking lever to the locking or unlocking position.

[0010] The central locking rod is in the upper safety position as follows: one end of the central locking rod is located at a predetermined position at one end of the support, and the actuating end of the release plate is located at a position that is offset from the free end of the coupling rod and cannot actuate the coupling rod.

[0011] The central locking rod is positioned in the unlocked position as follows: the other end of the central locking rod is located at a predetermined position at the other end of the support, and the actuating end of the release plate is located at a position that overlaps laterally with the free end of the coupling rod and can actuate the coupling rod.

[0012] With the above structure, the emergency locking and unlocking mechanism of the automobile side door lock of this utility model has the following advantages:

[0013] The central locking lever is ingeniously designed, changing the existing automotive side door locks where both the locking and unlocking mechanisms are rotary. Instead, it uses a sliding, linearly moving central locking lever mounted on a support. The support and the central locking lever have elastic structures that limit the central locking lever to the locked or unlocked position. In emergency situations, the manually driven linearly moving central locking lever essentially eliminates jamming. The sliding locking or unlocking process is flexible, stable, and reliable, and the transmission efficiency is greatly improved.

[0014] The emergency locking and unlocking mechanism of this car's side door lock has relatively fewer components. For example, the inner toggle mechanism is basically the same as the central locking rod or the inner pull plate, without adding any additional components. The structure is relatively simple, and the difficulty of the sliding central locking rod cooperating with other components is significantly reduced. The assembly process is relatively convenient and quick, the assembly efficiency is greatly improved, and the material and labor costs are significantly reduced, giving it a clear competitive advantage in the market.

[0015] Furthermore, each end of the support has a pin protruding from the surface of the central locking rod, and each end of the central locking rod has a first elongated through hole that slides linearly along the pin to move the central locking rod to the upper locking position or the unlocked position. This structure further ensures the flexibility, stability, and reliability of the sliding of the central locking rod relative to the support surface. It simplifies the sliding fit between the central locking rod and the support while ensuring that the central locking rod accurately, stably, and reliably remains in the upper locking position or the unlocked position within a predetermined stroke.

[0016] Furthermore, the actuation structure is an internal manual actuation structure. With this structure, it provides an internal emergency locking and unlocking function, allowing for manual actuation of the central locking lever to either the upper or lower locking position, facilitating internal emergency locking or unlocking.

[0017] Furthermore, the central locking lever has an emergency operation groove for manually moving the central locking lever to the upper or lower safe position using a tool inserted from the inside. The support plate at the emergency operation groove has an elongated through hole for lateral movement. With this structure, the emergency operation groove and the central locking lever are integrated, eliminating the need for additional parts and saving material costs. Moreover, in emergency situations, moving the central locking lever to the upper or lower safe position from the inside is flexible, effortless, stable, and reliable.

[0018] Furthermore, an inner pull plate is rotatably fitted onto a first shaft fixed to the front cover. One end of the inner pull plate is an inner pull end, and the other end has an inner emergency stop block for pushing the central locking lever to drive the central locking lever to the unlock position for manual release of the safety mechanism. It also includes an inner pull plate return spring. With this structure, the inner pull plate can also accommodate manual release of the safety mechanism in emergency situations. The inner emergency stop block is integrated with the central locking lever, eliminating the need for additional parts and saving material costs. Furthermore, the operation of pushing the central locking lever to the release position from the inside in an emergency is flexible, effortless, stable, and reliable.

[0019] Furthermore, the aforementioned actuation structure is an externally manually actuated structure. With this structure, it provides an external emergency locking and unlocking function, allowing for manual actuation of the central locking lever to either the upper or lower locking position, facilitating external emergency locking or internal emergency unlocking.

[0020] Furthermore, one end of an outer locking pull plate is rotatably fitted onto a second shaft fixed to the support, and the other end of the outer locking pull plate is an outer pulling end. The outer locking pull plate has an emergency operation pin for manually moving the central locking lever to the upper or lower locking position. One side of the central locking lever has an outwardly protruding side plate with a second elongated through hole that slides linearly along the second shaft to move the central locking lever to the upper or lower locking position. Outside the second elongated through hole is a third elongated through hole, parallel to the second elongated through hole, for the emergency pin to move the central locking lever to the upper or lower locking position. With this structure, the manual locking and unlocking mechanism in emergency situations is simple, and the operation of moving the central locking lever to the upper or lower locking position in an emergency is flexible, labor-saving, stable, and reliable.

[0021] Furthermore, the structure of the coupling rod rotating and engaging with the central locking rod is as follows: the central locking rod has a hollowed-out cylindrical portion for accommodating the coupling rod, and a U-shaped plate extending inward from the hollowed-out portion. The coupling rod is engaged with the U-shaped plate by a limiting groove formed by two latches and the coupling rod body, and is axially limited. The coupling rod rotates and engages with the U-shaped plate. The coupling rod return spring is a coupling rod return torsion spring, with the torsion spring body fitted onto the cylindrical portion of the coupling rod. One end of the coupling rod return torsion spring engages with a hook protruding from the upper surface of the central locking rod, and the other end engages with a hook protruding from the surface of the central locking rod at the actuating end of the coupling rod. With the above structure, the rotational engagement between the coupling rod and the central locking rod, as well as the automatic reset of the coupling rod after unlocking, are more flexible, stable, and reliable, further improving the stability and reliability of the system when the lock is engaged but cannot be unlocked, and when the lock is disengaged and can be unlocked smoothly, quickly, and flexibly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external structure of a preferred embodiment of a car side door lock equipped with the emergency manual locking and unlocking mechanism of this utility model.

[0023] Figure 2 This is a schematic diagram of the preferred embodiment of the manual locking and unlocking mechanism for the side door lock of this utility model in an emergency state, omitting the L-shaped cover and with the central locking rod in the locked position.

[0024] Figure 3 yes Figure 2 A schematic diagram showing that when the central locking lever is in the upper safety position, the release plate cannot move the coupling lever (cannot unlock) when the support is omitted.

[0025] Figure 4 yes Figure 2 A structural diagram from another angle.

[0026] Figure 5 yes Figure 3 A structural diagram from another angle.

[0027] Figure 6 This is a schematic diagram of the preferred embodiment of the manual locking and unlocking mechanism for the side door lock of this utility model in an emergency situation, omitting the L-shaped cover and with the central locking rod in the unlocked position.

[0028] Figure 7 yes Figure 6 A schematic diagram showing the structure where the release plate can move the coupling rod (to unlock) when the central locking rod is in the unlocked position, omitting the support.

[0029] Figure 8 yes Figure 7 A structural diagram from another angle.

[0030] Figure 9 This diagram shows the positions and connections of the components that unlock using the inner pull plate in the inner unlocking assembly of a car door lock.

[0031] Figure 10 This diagram shows the positions and connections of the components that unlock the car door lock using the external pull plate in the external unlocking assembly.

[0032] Figure 11 This is an enlarged structural diagram of the central locking rod in this utility model. Figure 1 .

[0033] Figure 12 This is an enlarged structural diagram of the central locking rod in this utility model. Figure 2 .

[0034] Figure 13 This is an enlarged structural schematic diagram of the central locking rod limiting torsion spring in this utility model.

[0035] Figure 14 This is an enlarged structural schematic diagram of the release plate in this utility model.

[0036] Figure 15 This is an enlarged structural diagram of the coupling rod in this utility model. Figure 1 .

[0037] Figure 16 This is an enlarged structural diagram of the coupling rod in this utility model. Figure 2 .

[0038] Figure 17 This is an enlarged structural schematic diagram of the external locking pull plate in this utility model.

[0039] As shown in the figure:

[0040] 1. Casing; 11. Support; 111. First pin; 112. Second shaft; 113. Third shaft; 12. Rear cover; 13. L-shaped cover; 131. Front cover; 132. Top cover; 133. Insert; 14. Base plate.

[0041] 21. External locking pull plate; 211. External pulling end; 22. Emergency operation lever; 23. Pull rod connecting block;

[0042] 31. Central locking rod; 311. First elongated through hole; 312. First engaging groove; 313. Second engaging groove; 314. Emergency operation groove; 315. Hollowed-out; 3151. U-shaped plate; 3152. Position for coupling rod rotation; 3153. Assembly through hole; 316. Engaging hook; 317. Inner emergency lever; 318. Side plate; 3181. Second elongated through hole; 3182. Third elongated through hole; 319. Rectangular through hole; 32. Central locking rod limiting torsion spring.

[0043] 41. Release plate; 411. Actuating end; 412. Long strip plate part; 413. Hook plate part; 414. Torsion spring block; 42. Release plate reset torsion spring.

[0044] 51. Coupling rod; 511. Cylindrical part; 5111. Axial limiting block; 512. Claw; 513. Coupling rod body; 514. Limiting groove; 515. Hook; 516. Free end; 5161. Arc-shaped lever; 52. Coupling rod reset torsion spring.

[0045] 61. Electrical connector socket; 611. Second pin; 612. Torsion spring pin; 613. Slot;

[0046] 71. Outer pull plate; 72. Inner pull plate; 721. Inner pull end; 722. Push claw; 723. Inner pull plate reset torsion spring; 73. Clamping plate; 74. Pawl linkage block; 75. Pawl. Detailed Implementation

[0047] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions of specific embodiments are intended to aid in understanding this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various specific embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0048] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 and Figure 17 As shown.

[0049] The housing 1 of the car side door lock may include a support 11, a base plate 14 on one side of the support 11, and an L-shaped cover 13 on the other side of the support 11, which is an integral part of the front cover 131 and the upper cover 132. A socket 133 for inserting a power plug is also located at one corner of the L-shaped cover 13. The housing 1 also includes a rear cover 12 connected to the support 11 and the front cover 131.

[0050] The above are existing technologies.

[0051] The invention of this utility model regarding the manual activation and deactivation mechanism for automotive side door locks in emergency situations is as follows.

[0052] This utility model relates to a manual locking and unlocking mechanism for automotive side door locks in emergency situations. It can also be described as a manual locking and unlocking mechanism for automotive side door locks in emergency situations. A preferred embodiment of this utility model's manual locking and unlocking mechanism for automotive side door locks in emergency situations includes:

[0053] A central locking rod 31 is slidably fitted on a support 11. The support 11 and the central locking rod 31 have elastic structures that limit the central locking rod 31 to the upper safety position or the unlocked position.

[0054] A release plate 41 is movably connected to a coupling rod 51 that is rotatably engaged with the central locking rod 31. In a preferred embodiment of the emergency locking and unlocking mechanism for the automotive side door lock of this utility model, the mechanism further includes a release plate return spring and a coupling rod return spring.

[0055] A preferred embodiment of the emergency locking and unlocking mechanism for the automotive side door lock of this utility model further includes a toggle structure for manually moving the central locking lever 31 to the locked or unlocked position.

[0056] The central locking rod 31 being in the upper safety position can specifically be: one end of the central locking rod 31 is located at a predetermined position at one end of the support 11, and the actuating end 411 of the release plate 41 is located at a position that is offset from the free end 516 of the coupling rod 51 and cannot actuate the coupling rod 51.

[0057] The central locking rod 31 being in the unlocked position can specifically be such that: the other end of the central locking rod 31 is located at a predetermined position at the other end of the support 11, and the actuating end 411 of the release plate 41 is located at a position that overlaps laterally with the free end 516 of the coupling rod 51 and can actuate the coupling rod 51.

[0058] The specific structure of the sliding structure can be as follows: each end of the support 11 has a pin protruding from the surface of the central locking rod 31, such as the first pin 111 and the second pin 611; each end of the central locking rod has a first elongated through hole 311 that slides linearly along the pins such as the first pin 111 and the second pin 611 to slide the central locking rod 31 to the upper safety position or the unlocked position.

[0059] Of course, the specific structure of the central locking rod sliding fit on the support can also be a structure in which the longitudinal guide rail and the longitudinal guide groove fit together; or it can be a structure in which the protruding post on the bottom surface of the central locking rod fits together with the long sliding groove on the support, etc.

[0060] The aforementioned actuation structure can be an inner manual actuation structure, including two types:

[0061] One type is a structure that allows for both manual locking and unlocking: the central locking rod 31 has an emergency operation groove 314 for inserting a toggle tool to manually move the central locking rod 31 to the locked or unlocked position. The support plate 11 at the emergency operation groove 314 has a rectangular through hole 319 for lateral toggle. It is easy to understand that the length of the rectangular through hole 319 is sufficient to move the central locking rod 31 to both the locked and unlocked positions.

[0062] Of course, a protruding post that passes through a rectangular through hole and protrudes outward can be used instead of an emergency operation groove. The movement can be achieved by inserting a steel pipe and applying force to move it laterally.

[0063] Another type is a manual unlocking mechanism: an inner pull plate 72 is rotatably fitted onto a first shaft fixed to the front cover 131. One end of the inner pull plate 72 is an inner pull end 721, and the other end of the inner pull plate 72 has an inner emergency lever 317 for pushing the central locking lever 31 to drive the central locking lever 31 to the unlock position, thereby manually unlocking the lock. A preferred embodiment of the manual locking and unlocking mechanism for the automotive side door lock in an emergency also includes an inner pull plate return spring, such as an inner pull plate return torsion spring 723, fitted onto the first shaft.

[0064] The aforementioned actuation structure can also be an externally manually actuated structure.

[0065] One end of an outer locking pull plate 21 is rotatably fitted onto a second shaft 112 fixed on a support 11. The other end of the outer locking pull plate 21 is an outer pulling end 211, on which a pull rod connecting block 23 may be provided. The outer locking pull plate 21 has an emergency operation lever 22 for manually moving the central locking rod 31 to the upper safety position or the unlocked position. One side of the central locking rod 31 has an outwardly protruding side plate 318. The side plate 318 has a second elongated through hole 3181 that slides linearly along the second shaft 112 to slide the central locking rod 31 to the upper safety position or the unlocked position. Outside the second elongated through hole 3181, there is a third elongated through hole 3182 that is parallel to the second elongated through hole 3181 and is used for the emergency lever 22 to move the central locking rod 31 to the upper safety position or the unlocked position.

[0066] The external emergency locking and unlocking structure can also be as follows: a push-pull rod is fixed at one end of the central locking rod, the push-pull rod passes through a hole in the support end plate, and the external push-pull rod is moved to the locking or unlocking position; or there can be a steel wire rope at each end of the central locking rod, and the external pull one end to lock and pull the other end to unlock.

[0067] The structure in which the coupling rod 51 rotates and engages with the central locking rod 31 can be as follows: The central locking rod 31 has a hollow 315 for accommodating the cylindrical part 511 of the coupling rod 51. There is an inwardly extending U-shaped plate 3151 at the hollow 315. The coupling rod 51 is engaged with the U-shaped plate 3151 and axially limited by the limiting groove 514 formed by the two latches 512 and the coupling rod body 513. The coupling rod 51 rotates and engages with the U-shaped plate 3151. If it rotates at the arc groove at the end of the U-shaped plate 3151, this part can also be called the position 3152 for the coupling rod to rotate. The other end of the cutout 315, away from the position 3152 where the coupling rod rotates, may have a mounting through hole 3153. This mounting through hole 3153 allows the cylindrical part 511 of the coupling rod 51 and the two symmetrically arranged latches 512 to pass through and slide against the U-shaped plate 3151 until they slide to the position 3152 where the coupling rod rotates. The coupling rod return spring is a coupling rod return torsion spring 52. The torsion spring body of the coupling rod return torsion spring 52 is fitted onto the cylindrical part 511 of the coupling rod 51. One end of the coupling rod return torsion spring 52 is engaged in the engaging hook 316 protruding from the upper surface of the central locking rod 31, and the other end of the coupling rod return torsion spring 52 is engaged in the engaging hook 515 protruding from the surface of the central locking rod 31 at the free end 516 of the coupling rod 51, i.e., the actuating end. An axial limiting block 5111, such as two symmetrical axial limiting blocks 5111, can be provided at the end of the cylindrical part 511 away from the central locking rod 31 to prevent the coupling rod reset torsion spring 52 from axially moving out of the cylindrical part 511.

[0068] See Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 11 The pin at the end away from the coupling rod 51, such as the second pin 611 at the right end, and the elastic structure, such as the central locking rod limiting torsion spring 32, can be indirectly set on the support 11: an electrical plug seat 61 is fixed on the support 11, and the second pin 611 at the right end is fixed as if integrally injection molded on the electrical plug seat 61. The torsion spring body of the central locking rod limiting torsion spring 32 is sleeved on the torsion spring post 612 fixed as if injection molded on the electrical plug seat 61. One end of the central locking rod limiting torsion spring 32 is engaged in the slot 613 of the electrical plug seat 61, and the other end of the central locking rod limiting torsion spring 32 is engaged in the first engaging groove 312 at the right end of the central locking rod 31, which makes the central locking rod 31 located in the upper safety position, or the second engaging groove 313 at the right end, which makes the central locking rod 31 located in the unlocked position.

[0069] With the above structure, the pins that need to be installed on the support 11, such as the second pin 611, and the limiting elastic structures, such as the central locking rod limiting torsion spring 32, are all installed on the electrical pin socket 61 fixed on the support 11. This effectively utilizes the original structure, saves installation space, and makes the structure of the manual locking and unlocking mechanism of the car side door lock more compact in emergency situations. Moreover, after the elastic structure adopts the above-mentioned specific structure of the central locking rod limiting torsion spring 32 engaging, its structure is simple, stable, and reliable.

[0070] Of course, the pin and elastic structure at the end closest to the motor can also be directly mounted on the support at that end, such as the right end.

[0071] The elastic structure can also be other specific structures, such as a tension spring on the central locking rod at one end (e.g., the right end) and the support in the unlocked state; or a spring-loaded ball on the support, which limits the movement of the ball groove on the central locking rod in the unlocked position, or the ball groove on the central locking rod in the locked position, etc.

[0072] The middle part of the long strip portion 412 of the hook-shaped release plate 41 is rotatably fitted onto the third shaft 113 fixed to the support 11. The free end of the hook portion 413 of the release plate 41 is the actuating end 411 used to actuate the coupling rod 51. The hook portion 413 is the part actuated by the outer pull plate 71, and the long strip portion 412 is the part actuated by the inner pull plate 72. It is easy to understand that the outer pull plate 71 has a return torsion spring, and the inner pull plate 72 also has a return torsion spring. The actuating end 411 can also be called an actuating block. The release plate return spring is the release plate return torsion spring 42. The torsion spring body of the release plate return torsion spring 42 is fitted onto the third shaft 113. One end of the release plate return torsion spring 42 is engaged with the torsion spring catch block 414 fixed to the long strip portion 412 of the release plate 41, and the other end of the release plate return torsion spring 42 is engaged with the support 11.

[0073] With the above structure, the release plate 41 is ingeniously designed, simple in structure and full in function. It can be moved by both the inner pull plate 72 and the outer pull plate 71. When the central locking rod 31 is in the unlocked position, the moving end 411 of the release plate 41 is aligned with the free end 516 of the coupling rod 51, so that the coupling rod 51 can be moved smoothly, flexibly and effortlessly to unlock. When the central locking rod 31 is in the upper locked position, the moving end 411 of the release plate 41 is misaligned with the free end 516 of the coupling rod 51, or is in a state of being knocked away, so it cannot be moved and therefore cannot unlock. Its stability and reliability in being unable to unlock when locked and being able to unlock smoothly, quickly and flexibly when unlocked are very strong.

[0074] See Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 11 It is not difficult to understand that the emergency locking and unlocking mechanism of the automotive side door lock of this utility model does not include a motor, worm gear, and worm wheel. Therefore, in emergency situations such as power outages, manually sliding the central locking lever 31 to the left or right is flexible and smooth. Even in technical solutions that include a motor, worm gear, and worm wheel, because the worm gear is a double-headed worm gear without a self-locking function, that is, the worm gear itself does not have a self-locking function, in emergency situations such as power outages, manually sliding the central locking lever to the left or right will not encounter any resistance from the worm gear and worm wheel, meaning it is flexible and smooth, and can even drive the worm wheel, worm gear, and motor to rotate in the opposite direction.

[0075] See Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 11 The central locking rod 31 is located in the upper safety position. In layman's terms, if the central locking rod 31 slides to the left, it will cause the coupling rod 51 to slide to the left as well. Or, in other words, the coupling rod 51 slides to the left along with the central locking rod 31. One end of the central locking rod 31 is located at a predetermined position at the left end of the support 11, and the actuating end 411 of the release plate 41 is located at a position that is offset from the free end 516 of the coupling rod 51 and cannot actuate the coupling rod 51.

[0076] See Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 11The central locking rod 31 is in the unlocked position. In simple terms, if the central locking rod 31 slides to the right at one end, it will cause the coupling rod 51 to slide to the right at the same end. Or, in other words, the coupling rod 51 slides to the right at the same end as the central locking rod 31. The other end of the central locking rod 31 is located at a predetermined position at the other end of the support 11, and the actuating end 411 of the release plate 41 is located at a position that overlaps laterally with the free end 516 of the coupling rod 51 and can actuate the coupling rod 51.

[0077] It is easy to understand that when the central locking lever 31 is in the upper locked position, although both the inner pull plate 72 of the inner unlocking assembly and the outer pull plate 71 of the outer unlocking assembly of the car side door lock can rotate the release plate 41, the free end 516 of the coupling lever 51 has disengaged from the actuating end 411 of the release plate 41 due to the movement of the central locking lever 31, thus preventing the subsequent chain reaction and unlocking. Only when the central locking lever 31 is in the unlocked position as described above after the lock is released can the inner pull plate 72 of the inner unlocking assembly and the outer pull plate 71 of the outer unlocking assembly rotate the release plate 41, thereby actuating the free end 516 of the coupling lever 51 and unlocking the door. This is the focus of this utility model.

[0078] It is not difficult to understand that the task of the manual locking and unlocking mechanism of the car side door lock of this utility model in emergency situations is to manually lock or unlock the door in emergency situations. As for the next step of unlocking from the inside or outside after unlocking, that is the task of the unlocking mechanism of another utility model of car side door lock submitted on the same day as this utility model. For example, when the central locking rod 31 is in the unlocked position, the inner pull plate 72 in the unlocking mechanism of the car side door lock actuates the long strip plate 41 of the release plate 4. 2. The outer pull plate 71 in the car side door lock unlocking mechanism can rotate, or the hook plate portion 413 of the release plate 41 can be rotated by the outer pull plate 71. The actuating end 411 of the release plate 41 can actuate the free end 516 of the coupling rod 51 to rotate. The free end 516 of the coupling rod 51 actuates the pawl linkage block 74 to rotate, which drives the pawl 75 to rotate, causing the pawl 75 to disengage from the locking plate 73. After the locking plate 73 is no longer constrained by the pawl 75, the locking plate 73 returns to its original position under the force of the locking plate return spring, thus unlocking. It is easy to understand that after unlocking, the outer pull plate 71, inner pull plate 72, release plate 41, coupling rod 51, pawl linkage rod 74, and linked pawl 75 all return to their original positions under the spring force of their respective return springs.

[0079] The central locking rod 31 can also be called a central locking plate, or an intermediate locking rod, or a frame-type locking component extending along the length of the support, or a frame-type locking plate. The cutout 315 can also be called a through hole. The electrical pin socket 61 can also be called an electrical pin assembly. The elongated through hole can also be called a waist-shaped through hole. Rotational fit, also called rotational connection, generally refers to a movement of the pins onto their respective shafts through holes. The emergency operation groove 314 can also be called an emergency operation port or an emergency operation notch. The outer locking pull plate 21 can also be called an outer locking connecting rod. The outer pulling end 211 of the outer locking pull plate 21 can also be directly connected to the pull cable without the pull rod connecting block 23. Shafts such as the first shaft, second shaft 112, and third shaft 113, etc., can be injection molded as a single unit when fixed to the support 11 or the front cover 131. The actuating end 411 of the release plate 41 is misaligned or separated from the free end 516 of the coupling rod 51, meaning they are in a position where they cannot be actuated. The free end 516 of the coupling rod 51, also known as the actuating end of the coupling rod 51, may have an arc-shaped actuating block 5161 near the support 11 for actuating the pawl linkage block 74. The actuating end 411 of the release plate 41 and the free end 516 of the coupling rod 51 overlap laterally, also known as horizontal overlap or horizontal coincidence, meaning they are in a position where they can be actuated. Engaging the safety mechanism is also called locking, and disengaging the safety mechanism is also called unlocking. A actuating connection can also be understood as the two forming a actuating connection, meaning the relationship between them is one of actuation and being actuated. Linear motion is also known as linear movement.

[0080] See Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 11 The working principle of the preferred embodiment of the manual insurance activation and deactivation mechanism for the car side door lock in emergency situations is as follows:

[0081] 1. Internal manual emergency locking: Insert a screwdriver or other tool into the emergency operation groove 314 and manually move it to the left to slide the central locking rod 31 to the left until it is limited to the predetermined left position or the maximum left position by the pins at both ends of the support 11, such as the first pin 111 and the second pin 611. The central locking rod limiting torsion spring 32 limits the central locking rod 31 to the upper locking position. At this time, the central locking rod 31 is in the upper locking position, that is, the actuating end 411 of the release plate 41 is located at a position that is offset from the free end 516 of the coupling rod 51 and cannot actuate the coupling rod 51.

[0082] 2. Internal manual emergency release of the safety device: Insert a screwdriver or other tool into the emergency operation groove 314 and manually move it to the right, or pull the inner pull plate 72 to make the push claw 722 push the inner emergency release block 317 on the central locking rod 31 to make the central locking rod 31 slide to the right until it is limited to the predetermined position to the right or the maximum position to the right by the pins at both ends of the support 11, such as the first pin 111 and the second pin 611. The central locking rod limiting torsion spring 32 limits the central locking rod 31 to the release position. At this time, the central locking rod 31 is in the release position, that is, the release plate 41's actuating end 411 is located in a position that overlaps laterally with the free end 516 of the coupling rod 51 and can actuate the coupling rod 51.

[0083] 3. External manual emergency locking: Manually move the outer locking plate 21 to the left to drive the central locking rod 31 to slide to the left until it is limited to the predetermined left position or the maximum left position by the pins at both ends of the support 11, such as the first pin 111 and the second pin 611. The central locking rod limiting torsion spring 32 limits the central locking rod 31 to the upper locking position. At this time, the central locking rod 31 is in the upper locking position, that is, the actuating end 411 of the release plate 41 is located at a position that is offset from the free end 516 of the coupling rod 51 and cannot actuate the coupling rod 51.

[0084] IV. External manual emergency release of the safety lock: Manually move the outer locking plate 21 to the right to drive the central locking rod 31 to slide to the right until it is limited to the predetermined position to the right or the maximum position to the right by the pins at both ends of the support 11, such as the first pin 111 and the second pin 611. The central locking rod limiting torsion spring 32 limits the central locking rod 31 to the release position. At this time, the central locking rod 31 is in the release position, that is, the actuating end 411 of the release plate 41 is located in a position that overlaps laterally with the free end 516 of the coupling rod 51 and can actuate the coupling rod 51.

[0085] Components, structures, or quantities not marked above are not shown in the drawings, and some components are not marked in the drawings. The drawings are for illustrative purposes only. In case of any inconsistency between the drawings and the text description, or between the drawings themselves, the text description shall prevail.

[0086] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An emergency manual locking and unlocking mechanism for a vehicle side door lock, characterized in that: a central locking rod is slidingly fitted on a support, and the support and the central locking rod have elastic structures for limiting the central locking rod in a locked position or an unlocked position; a release plate is rotationally fitted on a coupling rod on the central locking rod, and further comprising a release plate return spring and a coupling rod return spring; further comprising a manual actuating structure for manually actuating the central locking rod to the locked position or the unlocked position; the central locking rod in the locked position is that one end of the central locking rod is located at a predetermined position of one end of the support, and the actuating end of the release plate is located at a position that is staggered with the free end of the coupling rod and cannot actuate the coupling rod; the central locking rod in the unlocked position is that the other end of the central locking rod is located at a predetermined position of the other end of the support, and the actuating end of the release plate is located at a position that is transversely overlapped with the free end of the coupling rod and can actuate the coupling rod; each end of the support has a pin column protruding from the surface of the central locking rod, and each end of the central locking rod has a first elongated hole for linear sliding along the pin column to slide the central locking rod to the locked position or the unlocked position; the actuating structure is an inner manual actuating structure; the central locking rod has an emergency operation groove for the inner manual actuation of the central locking rod to the locked position or the unlocked position by inserting an actuating tool, and the support plate at the emergency operation groove has an elongated hole for transverse actuation; an inner pull plate is rotationally fitted on a first shaft fixed on the front cover, one end of the inner pull plate is an inner actuating end, the other end of the inner pull plate has an inner emergency actuating block for pushing the central locking rod to manually unlock the central locking rod to the unlocked position, and further comprising an inner pull plate return spring; the actuating structure is an outer manual actuating structure; one end of an outer lock pull plate is rotationally fitted on a second shaft fixed on the support, the other end of the outer lock pull plate is an outer actuating end, the outer lock pull plate has an emergency operation actuating column for the outer manual actuation of the central locking rod to the locked position or the unlocked position; one side of the central locking rod has a side plate protruding outward, the side plate has a second elongated hole for linear sliding along the second shaft to slide the central locking rod to the locked position or the unlocked position, and the outer side of the second elongated hole has a third elongated hole parallel to the second elongated hole and used for the emergency actuating column to actuate the central locking rod to the locked position or the unlocked position; the structure that the coupling rod is rotationally fitted on the central locking rod is that the central locking rod has a hollow for accommodating the cylindrical part of the coupling rod, the hollow has a U-shaped plate protruding inward, the coupling rod is clamped on the U-shaped plate by a limiting groove formed by two clamping claws and the body of the coupling rod and is axially limited, and the coupling rod is rotationally fitted on the U-shaped plate; the coupling rod return spring is a coupling rod return torsion spring, the torsion spring body of the coupling rod return torsion spring is sleeved on the cylindrical part of the coupling rod, one end of the coupling rod return torsion spring is clamped in a clamping hook protruding from the upper surface of the central locking rod, and the other end of the coupling rod return torsion spring is clamped in a clamping hook protruding from the surface of the central locking rod on the actuating end of the coupling rod. ​ ​ ​ ​ ​ 2. The manual emergency door lock arming and disarming mechanism of a vehicle side door according to claim 1, characterized in that: ​ 3. The artificial insurance and resolution mechanism in emergency situations according to claim 1, characterized in that: ​ 4. The manual emergency door lock and unlock mechanism of a vehicle side door according to claim 3, characterized in that: ​ 5. The manual emergency door lock and unlock mechanism of a vehicle side door according to claim 3, characterized in that: ​ 6. The manual emergency door lock arming and disarming mechanism of a vehicle side door according to claim 1, wherein: ​ 7. The manual emergency door lock and unlock mechanism of a vehicle side door according to claim 6, characterized in that: ​ 8. The manual emergency door lock arming and disarming mechanism of claim 1, wherein: ​

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