Car side door lock

Abstract

The invention discloses a car side door lock, comprising a lock body assembly and an actuator assembly, wherein the motor of the actuator assembly rotates in a predetermined direction, driving the worm and then driving the worm wheel to rotate counterclockwise, the worm wheel drives the safety rod to slide to the right, the clutch rod rotates clockwise under the torsion force of the clutch rod torsion spring, the clutch rod and the first conversion plate constitute a release safety, at this time, the first inner pull plate of the lock catch assembly is pulled, the torsion force of the first inner pull plate torsion spring is overcome and the torsion is rotated clockwise, the first conversion plate is toggled, the first conversion plate drives the clutch rod and the release plate to rotate, the release plate drives the pawl pin and the pawl to rotate, when the pawl rotates to a state where it does not restrict the card plate, that is, it is disengaged from the card plate, the card plate rotates under the force of the card plate torsion spring to unlock the side door lock, that is, the car door is opened. The car side door lock has relatively few components constituting the lock body assembly and the actuator assembly, relatively few parts constituting the components, and the flexibility and mechanical properties of the connection between the components are relatively ideal.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, in particular to an automobile side door lock. Background Art

[0002] The existing automobile side door lock is a very mature technology, generally including a lock body assembly and an actuator assembly. The actuator assembly is also called an actuator assembly or a locker. The lock body assembly includes a basic lock unit composed of a pawl rotating around its own rivet and a card plate or a lock tongue rotating around its own rivet. The motor in the actuator assembly drives the worm gear electric mechanism and other manual mechanisms to secure or release the insurance, and then unlock the car from outside or inside the car. The structure of the existing automobile side door lock is different and the function is different. However, according to the applicant's understanding, the existing automobile side door lock still has the following shortcomings: 1. There are relatively many components constituting the side door lock, and the parts of the components are relatively many, which occupy a relatively large space. The flexibility and mechanical properties of the connection between the components are not ideal. The flexibility and reliability are not strong during the unlocking and locking operations. The operation is relatively laborious, and the service life of the lock is affected to a certain extent. 2. Due to the relatively large number of parts, the material cost is relatively high, and the assembly process is relatively more, the assembly efficiency is relatively low, and the assembly labor cost is relatively increased, resulting in the product's price competitive advantage is not obvious. 3. Some actuators use a split structure of the front cover and electrical components, which has poor waterproofing and increases the difficulty of assembly. 4. Some parts have abnormal sounds, which increases the noise; some parts have low working reliability and are inconvenient to assemble. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a car side door lock having relatively few components constituting a lock body assembly, relatively few parts constituting the components of the lock body assembly, and ideal flexibility and mechanical properties of the connections between the components of the lock body assembly.

[0004] The technical solution of the present invention is to provide a car side door lock, including a lock body assembly and an actuator assembly, wherein the lock body assembly includes:

[0005] The outer pull plate is sleeved on the first axis of the shell, rotates around the first axis of the shell, and is toggle-connected with the first conversion plate, and the outer end of the outer pull plate is used to connect with the outer handle;

[0006] The first inner pull plate is sleeved on the first axis of the front cover, rotates around the first axis of the front cover, and is toggle-connected with the first conversion plate, and one end of the first inner pull plate is used to be connected with the inner handle;

[0007] The shaft of the clutch rod is rotatably sleeved with the hole of the release plate, the clutch rod torsion spring is sleeved on the shaft of the clutch rod, one end of the clutch rod torsion spring is connected to the clutch rod, and the other end is connected to the release plate, and the torque of the clutch rod torsion spring pushes the clutch rod to approach the first conversion plate and form a fit;

[0008] The outer circumferential surface of the boss of the release plate is sleeved in the hole of the first conversion plate, and the inner hole of the boss of the release plate is sleeved on the second axis of the shell and rotates around the second axis of the shell; the release plate torsion spring is also sleeved on the second axis of the shell, one end of the release plate torsion spring is connected to the shell, and the other end is connected to the release plate and the first conversion plate; the release plate and the first conversion plate can overcome the torsion of the release plate torsion spring under the drive of external force, rotate around the second axis of the shell and push the pawl to rotate to the release position through the pawl pin;

[0009] The pawl pin is fixed on the pawl, and the pawl rivet is riveted on the bottom plate connected to the shell; the pawl is sleeved on the pawl rivet and rotates around the pawl rivet; the pawl torsion spring is sleeved on the pawl rivet, one end of the pawl torsion spring is connected to the shell, and the other end is connected to the pawl pin, and when the pawl pin rotates under the action of external force to overcome the torque of the pawl torsion spring, the pawl is driven to rotate together;

[0010] The card plate rivet is riveted to the bottom plate, the card plate is sleeved on the card plate rivet and rotates around the card plate rivet; the card plate torsion spring is sleeved on the third axis of the shell and rotates around the third axis of the shell, one end of the card plate torsion spring is connected to the shell, and the other end is connected to the card plate.

[0011] After adopting the above structure, the automobile side door lock of the present invention has the following advantages: the number of parts constituting the lock body assembly is relatively small, the number of parts constituting the parts of the lock body assembly is relatively small, the space occupied is relatively small, the flexibility and mechanical properties of the connection between the parts are very ideal, the unlocking and locking operation process is flexible and reliable, the operation is relatively simple and labor-saving, and the service life of the lock is extended. At the same time, since the number of parts constituting the lock body assembly of the automobile side door lock is relatively small, the material cost is relatively reduced, and the assembly process is relatively reduced, the assembly efficiency is relatively improved, and the assembly labor cost is relatively reduced, so that the price competitiveness of this product is obvious.

[0012] Furthermore, the execution component includes:

[0013] A plurality of metal conductive sheets are embedded in the front cover connected to the housing, one end of the metal conductive sheet is connected to a plug located in the front cover socket, the plug is used to be electrically connected to the vehicle body wiring harness, and the other end of the metal conductive sheet is connected to a motor installed in the front cover and at least one micro switch installed in the front cover;

[0014] There is a worm on the motor shaft, and the worm wheel meshing with the worm and forming a worm gear transmission mechanism is movably sleeved on the second axis of the front cover and can rotate around the second axis of the front cover; one end of the eccentric torsion spring is connected to the worm wheel, and the other end is connected to the front cover, so that the worm wheel is kept in one of the two extreme positions;

[0015] The safety rod is slidably matched on the guide groove in the front cover and can move linearly. One end of the worm wheel forms a toggle connection with one end of the safety rod, and the other end of the safety rod can abut against the clutch rod.

[0016] After adopting the above structure, the actuator makes the front cover and the electrical component into a whole, that is, all the parts of the actuator are directly installed on the front cover, and the waterproof effect is good. The safety rod adopts an axial sliding structure, and the parts constituting the actuator are relatively few, and the parts of the actuator are relatively few, and the space occupied is relatively small. The flexibility and mechanical properties of the connection between the parts of the actuator are very ideal, and the unlocking and locking operation process is flexible and reliable, the operation is relatively simple and labor-saving, and the service life of the lock is extended. At the same time, since the parts constituting the actuator are relatively few, the material cost is relatively reduced, and the assembly process is relatively reduced, the assembly efficiency is relatively improved, and the assembly labor cost is relatively reduced, the price competitiveness of this product is obvious.

[0017] Furthermore, the micro switch includes a first micro switch, the contact of which abuts against one side of the linearly moving bumper, and is used to output an electrical signal of the bumper movement state through the conductive sheet and the vehicle body wiring harness to inform the driver. With the above structure, the first micro switch has better sensitivity and higher accuracy.

[0018] Furthermore, the actuator assembly also includes an inner locking rod, which is sleeved on the third axis of the front cover and rotates around the third axis of the front cover. One end of the inner locking rod is connected to the worm gear, and the other end is used to connect to the inner handle. After adopting the above structure, a layer of insurance is added. In the case of power failure, such as when the car is powered off or the remote control battery is dead, pulling the inner lock cable from inside the car can also achieve insurance or release.

[0019] Furthermore, the lock body assembly also includes an external locking rod and an external safety conversion rod; the external locking rod is sleeved on the fourth axis of the shell and rotates around the fourth axis of the shell, one end of the external locking rod is used to be hinged with the lock core connecting rod on the car door, and the other end of the external locking rod is connected to the external safety conversion rod by toggling, the external safety conversion rod is sleeved on the fifth axis of the shell and rotates around the fifth axis of the shell, one side of the external safety conversion rod is hinged with the safety rod and can drive the safety rod to move left and right; the bottom surface of the external safety conversion rod also has a downward protrusion for cooperating with the upward protrusion of the card plate to prevent accidental locking. After adopting the above structure, another layer of safety is added. In the case of power shortage, such as when the car is powered off or the remote control battery is out of power, the lock core connecting rod can be driven by a key from outside the car to achieve the same effect of safety or release. This structure has another clever feature: the safety conversion rod also serves as an anti-mislocking structure. When the cab door is closed, the door latch pushes the card plate to rotate counterclockwise, driving the upward protrusion of the card plate to rotate to a position where the downward protrusion of the external safety conversion rod cannot be moved. At this time, the external safety conversion rod can be moved to drive the safety rod to move left, and then push the clutch rod to apply safety; when the cab door is opened, the card plate rotates clockwise, driving the upward protrusion of the card plate to rotate to a position that abuts against the protrusion of the external safety conversion rod. At this time, the downward protrusion of the external safety conversion rod cannot be moved due to the abutment of the upward protrusion of the card plate, that is, the insurance cannot be applied. That is, when the cab door is open, the cab door cannot be insured, and the car door can always be opened, thereby avoiding the situation where the key is locked in the car. The safety conversion rod is dual-purpose, saving materials and space, and is relatively simple to assemble and easy to operate.

[0020] Furthermore, the lock body assembly also includes an emergency lock rod, which is rotatably engaged in a through hole of the shell, the inner end face of the emergency lock rod is axially limited by the back plate, a cam for unidirectionally toggling the safety rod is fixed on the top of the outer circumference of the emergency lock rod, a radial protrusion is provided in the middle of the outer circumference of the emergency lock rod to prevent abnormal noise, and a groove is provided on the outer end face of the emergency lock rod for a key to be inserted and rotated for unidirectional insurance. After adopting the above structure, another layer of insurance is added. In the case of power failure, such as when the car is powered off or the remote control battery is dead, the key can be used from inside the car to drive the lock core connecting rod, so that insurance can be applied, that is, the door can be locked even when the power is off when people need to leave. Compared with the prior art, the emergency lock rod is small in size, occupies little space, is simply connected to the safety rod, and is flexible and reliable in insurance operation with low noise.

[0021] Furthermore, the actuator assembly also includes a child lock component, which includes: a knob lever rotatably engaged in the circular hole of the mounting plate fixed on the shell and the circular hole of the back cover, one end of the knob lever slidingly engaged in the vertical arc-shaped long through hole of the mounting plate via a guide column, the other end of the knob lever is hinged to one end of the inner opening clutch rod, the lever on the other end of the inner opening clutch rod slidingly engaged in the vertical waist-shaped through hole at one end of the second conversion plate, the second conversion plate is hinged on the fourth axis of the front cover, the other end of the second conversion plate is used to be connected to the first conversion plate for toggling, and a second inner pull plate is also hinged on the fourth axis of the front cover, the second inner pull plate is used to pull the second inner pull plate to the lever at one end of the vertical waist-shaped through hole under external force so as to toggle the first conversion plate through the second conversion plate, or the second inner pull plate is pulled under external force. The lever is misaligned with the lever at the other end of the vertical waist-shaped through hole so that the first conversion plate cannot be toggled through the second conversion plate. After adopting the above structure, the parts that constitute the child lock component are relatively few, the space occupied is relatively small, the flexibility and mechanical properties of the connection between the components are very ideal, the child unlocking and locking operation process is flexible and reliable, the operation is relatively simple and labor-saving, and the material cost and labor assembly cost are relatively saved.

[0022] Furthermore, a straight-line notch is provided in the radial middle of the free end of the guide post for applying force to make it radially open outward, and a second radial protrusion is provided on the outer circumferential surface of the free end of the guide post to prevent the guide post from axially retreating and disengaging from the vertical arc-shaped long through hole of the mounting plate. With the above structure, the assembly or disassembly of the child lock component is simple and convenient, the guide post can maintain good guiding performance, and the unlocking or locking operation process of the child lock component is more flexible and reliable.

[0023] Furthermore, the lock body assembly also includes a first inner pull plate torsion spring, and the first inner pull plate torsion spring is also sleeved on the second axis of the front cover, one end of the first inner pull plate torsion spring is connected to the first inner pull plate, and the other end is connected to the front cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a schematic diagram of the appearance structure of the automobile side door lock of the present invention.

[0025] Figure 2 It is a schematic diagram of the exploded structure of the automobile side door lock of the present invention.

[0026] Figure 3 yes Figure 1 Schematic diagram of the explosion structure viewed from above.

[0027] Figure 4 yes Figure 1 Schematic diagram of the explosion structure of the shell after the top cover is removed.

[0028] Figure 5a It is a schematic structural diagram of the ratchet and the card plate in the locked state in the present invention.

[0029] Figure 5b It is a schematic structural diagram of the ratchet and the clamping plate in the unlocked state in the present invention.

[0030] Figure 6 It is a schematic diagram of the exploded structure of the actuator assembly when the rear cover is removed in the present invention.

[0031] Figure 7 It is a schematic diagram of the position structure of the micro switch in the actuator assembly after the rear cover is removed in the present invention.

[0032] Figure 8a It is a structural schematic diagram of the actuator of the present invention in the electrically released safety state.

[0033] Figure 8b It is a structural schematic diagram of the actuator of the present invention in the electrically-protected state.

[0034] Fig. 9 It is a schematic diagram of the exploded structure when the child lock component is connected to the housing in the present invention, viewed from the rear to the front.

[0035] Fig.10 It is a schematic structural diagram of the child lock component itself in the present invention viewed from the rear to the front.

[0036] Fig.11 It is a schematic structural diagram of the child lock component in the present invention when it is connected to the housing, viewed from the front to the rear.

[0037] Fig.12a It is a structural schematic diagram of the child lock component of the present invention when the safety state is released.

[0038] Figure 12b It is a structural schematic diagram of the child lock component of the present invention when it is in the safety state.

[0039] Fig.13 It is a structural schematic diagram of the emergency locking rod when it is installed on the housing in the present invention.

[0040] Fig.14 It is a schematic diagram of the explosion structure in which the emergency lock rod is connected to the housing and the safety rod in the present invention.

[0041] Fig.15 It is a schematic diagram of the structure of the emergency lock rod body in the present invention.

[0042] Fig.16a It is a rear view structural schematic diagram of the emergency lock rod in the present invention in an unsecured state.

[0043] Fig.16b It is a rear view structural schematic diagram of the emergency lock rod in the present invention in a safety-on state.

[0044] As shown in the figure: 1, bottom plate, 2, ratchet, 3, ratchet pin, 4, ratchet rivet, 5, ratchet buffer block, 6, card plate, 7, card plate rivet, 8, lock buffer block, 9, shell, 10, ratchet torsion spring, 11, card plate torsion spring, 12, emergency lock rod, 13, back plate, 14, clutch rod torsion spring, 15, clutch rod, 16, release plate torsion spring, 17, release plate, 18, first conversion plate, 19, external insurance conversion rod, 20, insurance rod, 21, external pull plate, 22, external pull plate buckle, 23, external locking rod, 24, front cover, 24a, first female buckle, 24b, second female buckle, 24c, socket, 25a, first micro switch, 25b, second micro switch, 25c, third micro switch, 26, first inner pull plate torsion spring, 27, first inner pull plate, 28, worm gear, 29. eccentric torsion spring, 30. worm gear buffer block, 31. motor, 32. worm, 33. inner locking rod, 34. back cover, 34a. first male buckle, 34b. second male buckle, 35. screw, 36. child lock lever knob, 37. inner clutch rod, 38. second conversion plate, 39. second inner pull plate, 40. first axis of shell, 41. second axis of shell, 42. third axis of shell, 43. second axis of front cover, 44. first axis of front cover, 45. first radial protrusion, 46. third axis of front cover, 47. fifth axis of shell, 48. mounting plate, 49. lever, 50. vertical waist-shaped through hole, 51. second inner pull plate's quick shifting, 52. guide column, 53. vertical arc-shaped long through hole, 54. second radial protrusion, 55. through hole, 56. groove, 57. fourth axis of shell. DETAILED DESCRIPTION

[0045] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these specific embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each specific embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] The automobile side door lock of the present invention comprises a lock body component and an actuator component. The actuator component is also called an actuator component, an actuator or a locking device.

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5a , Figure 5b , Figure 8a , Figure 8b As shown:

[0048] The lock body assembly comprises:

[0049] The outer pull plate 21 is sleeved on the first shaft 40 of the shell, rotates around the first shaft 40 of the shell, and is connected to the first conversion plate 18. The outer end of the outer pull plate 21 is used to connect with the outer handle, such as the outer end of the outer pull plate 21 can be used to connect with one end of a pull wire, and the other end of the pull wire can be used to connect with the outer handle. An outer pull plate buckle 22 can be provided outside the first shaft 40 of the shell to limit the axial position of the outer pull plate 21, that is, the outer pull plate buckle 22 is sleeved on the first shaft 40 of the shell, and the outer pull plate 21 is sleeved outside the outer pull plate buckle 22, and there is a structure for axially limiting the outer pull plate 21 on the outer pull plate buckle 22 and the first shaft 40 of the shell.

[0050] The first inner pull plate 27 is sleeved on the first shaft 44 of the front cover, rotates around the first shaft 44 of the front cover, and is connected to the first conversion plate 18. One end of the first inner pull plate 27 is used to connect with the outer handle, such as one end of the first inner pull plate 27 can be used to connect with one end of a pull wire, and the other end of the pull wire can be used to connect with the inner handle. The lock body assembly may also include a first inner pull plate torsion spring 26, which is also sleeved on the first shaft 44 of the front cover, one end of the first inner pull plate torsion spring 26 is connected to the first inner pull plate 27, and the other end is connected to the front cover 24.

[0051] The shaft of the clutch rod 15 is rotatably sleeved with the hole of the release plate 17, the clutch rod torsion spring 14 is sleeved on the shaft of the clutch rod 15, one end of the clutch rod torsion spring 14 is connected to the clutch rod 15, and the other end is connected to the release plate 17, and the torque of the clutch rod torsion spring 14 pushes the clutch rod 15 to approach the first conversion plate 18 and form a match. The match can be understood as contact or non-contact.

[0052] The outer circumferential surface of the boss of the release plate 17 is sleeved in the hole of the first conversion plate 18, and the inner hole of the boss of the release plate 17 is sleeved on the second shaft 41 of the housing and rotates around the second shaft 41 of the housing. The release plate torsion spring 16 is also sleeved on the second shaft 41 of the housing. One end of the release plate torsion spring 16 is connected to the housing 9, and the other end is connected to the release plate 17 and the first conversion plate 18. The release plate 17 and the first conversion plate 18 can overcome the torsion of the release plate torsion spring 16 under the drive of external force, rotate around the second shaft 41 of the housing, and push the pawl 2 to rotate to the release position through the pawl pin 3.

[0053] The pawl pin 3 is fixed on the pawl 2, and the pawl rivet 4 is riveted on the bottom plate 1 connected to the housing 9. The pawl 2 is sleeved on the pawl rivet 4 and rotates around the pawl rivet 4. The pawl torsion spring 10 is sleeved on the pawl rivet 4, one end of the pawl torsion spring 10 is connected to the housing 9, and the other end is connected to the pawl pin 3. When the pawl pin 3 rotates under the action of external force to overcome the torque of the pawl torsion spring 10, it drives the pawl 2 to rotate together. The lock body assembly may also include a pawl buffer block 5, which is connected to the housing 9 and is used to buffer and eliminate noise when the pawl 2 is reset under the action of the pawl torsion spring 10.

[0054] The card plate rivet 7 is riveted on the bottom plate 1, and the card plate 6 is sleeved on the card plate rivet 7 and rotates around the card plate rivet 7. The card plate torsion spring 11 is sleeved on the third shaft 42 of the housing and rotates around the third shaft 42 of the housing. One end of the card plate torsion spring 11 is connected to the housing 9, and the other end is connected to the card plate 6. The lock body assembly may also include a lock buffer block 8, which is connected to the housing 9 and is used to buffer and eliminate noise when the card plate 6 is reset under the force of the card plate torsion spring 11.

[0055] The lock body assembly may further include a back plate 13, which is riveted to the pawl rivet 4 and the card plate rivet 7 passing through the housing 9, so that the pawl rivet 4 and the card plate rivet 7 are fixed more firmly.

[0056] The lock body assembly may also include an external locking rod 23 and an external safety conversion rod 19. The external locking rod 23 is sleeved on the fourth shaft 57 of the housing and rotates around the fourth shaft 57 of the housing. One end of the external locking rod 23 is used to be hinged with the lock core connecting rod on the door, and the other end of the external locking rod 23 is connected to the external safety conversion rod 19. The external safety conversion rod 19 is sleeved on the fifth shaft 47 of the housing and rotates around the fifth shaft 47 of the housing. One side of the external safety conversion rod 19 is hinged with the safety rod 20 and can drive the safety rod 20 to move left and right. The bottom surface of the external safety conversion rod 19 also has a downward protrusion for cooperating with the upward protrusion of the card plate 6 to prevent mislocking (the downward protrusion and the upward protrusion are not shown in the figure). The last sentence can also be said as follows: the bottom surface of the external safety conversion rod 19 has a structure that contacts or separates from the card plate 6.

[0057] like Fig.13 , Fig.14 , Fig.15 , Fig.16a , Fig.16b As shown:

[0058] The lock assembly may further include an emergency lock rod 12, which is rotatably fitted in a through hole 55 of the housing 9, the inner end surface of the emergency lock rod 12 is axially limited by the back plate 13, and a pawl for unidirectionally toggling the safety rod 20 is fixed to the top of the outer circumference of the emergency lock rod 12. A first radial protrusion 45 is provided in the middle of the outer circumference of the emergency lock rod 12 to prevent abnormal noise, and a groove 56 is provided at the outer end of the emergency lock rod 12 for a key to be inserted and rotated for unidirectional safety.

[0059] like Figure 1 , Figure 6 , Figure 7 , Figure 8a , Figure 8b As shown:

[0060] The execution components include:

[0061] A plurality of metal conductive sheets are embedded in the front cover 24 connected to the housing 9. One end of the metal conductive sheet is connected to a plug located in the socket 24c of the front cover 24, and the plug is used to electrically connect to the vehicle body wiring harness, and the other end of the metal conductive sheet is connected to the motor 31 installed in the front cover 24 and at least one micro switch installed in the front cover 24.

[0062] A worm 32 is disposed on the shaft of the motor 31, and a worm wheel 28 meshing with the worm 32 and forming a worm gear transmission mechanism is sleeved on the second shaft 43 of the front cover and rotates around the second shaft 43 of the front cover. One end of the eccentric torsion spring 29 is connected to the worm wheel 28, and the other end is connected to the front cover 24, so that the worm wheel 28 is kept in one of the two extreme positions, and this structure can provide a gear sense.

[0063] The safety rod 20 is slidably fitted in the guide groove in the front cover 24 and can move linearly. One end of the worm gear 28 is connected to one end of the safety rod 20 in a toggle connection, and the other end of the safety rod 20 is against the clutch rod 15.

[0064] The rear cover 34 and the front cover 24 are connected to each other to enhance the overall strength of the actuator. Figure 6 As shown, the front cover 24 and the rear cover 34 can be connected by several pairs or multiple pairs of male and female buckles 34a, 24a and 34b, 24b, such as multiple first male buckles 34a and multiple first female buckles 24a correspondingly connected to each other, and multiple second male buckles 24b and multiple second female buckles 24a correspondingly connected to each other. Male and female buckles can also be used for connection at other positions not shown in the figure. At the same time, the rear cover 34 and the front cover 24 are connected to each other, and several or multiple screws 35 can be added to screw with the threaded holes to further reinforce them.

[0065] The rear cover 34 and the front cover 24 may be designed to have a structure in which a protrusion and a groove cooperate with each other, and a sealing strip or the like may be used to seal and prevent water.

[0066] The actuator assembly may further include a worm gear buffer block 30 , which is disposed between the front cover 24 and the worm gear 28 and plays a role in buffering and eliminating noise during operation.

[0067] The actuator assembly may also include an inner locking rod 33, which is sleeved on the third axis 46 of the front cover and rotates around the third axis 46 of the front cover. One end of the inner locking rod 33 is connected to the worm gear 28, and the other end is used to connect to the inner handle, such as the other end of the inner locking rod 33 is connected to one end of a pull wire, and the other end of the pull wire is connected to the inner handle.

[0068] The micro switches may be multiple, such as three micro switches: a first micro switch 25 a , a second micro switch 25 b and a third micro switch 25 c , which are respectively connected to the metal conductive sheet of the front cover 24 .

[0069] The contact of the first micro switch 25a abuts against one side of the linearly moving bumper 20, and is used to output an electrical signal of the moving state of the bumper 20 through the conductive sheet and the vehicle body harness to inform the driver. In other words, it is used to collect the linear moving position of the bumper 20, so as to know the state of the bumper, and can output the electrical signal through the conductive sheet inside the front cover 24.

[0070] The micro switch 25 b provided in the front cover 24 cooperates with the outer circumferential arc surface of the card plate 6 to collect the rotation position of the card plate and output the electrical signal through the metal conductive sheet inside the front cover 24 .

[0071] The micro switch 25 c provided in the front cover 24 cooperates with the rotating surface of the outer locking rod 23 to collect the rotation position of the outer locking rod 23 and output the electrical signal through the metal conductive sheet inside the front cover 24 .

[0072] like Fig. 9 , Fig.10 , Fig.11 , Fig.12a , Figure 12b As shown:

[0073] The actuator assembly further includes a child lock component, which includes: a knob lever 36 that is rotatably engaged in a circular hole of a mounting plate 48 fixed to the housing and in a circular hole of a rear cover 34, one end of the knob lever 36 is slidably engaged in a vertical arc-shaped long through hole 53 of the mounting plate 48 via a guide column 52, the other end of the knob lever 36 is hinged to one end of an inner opening clutch rod 37, and a lever column 49 on the other end of the inner opening clutch rod 37 is slidably engaged in a vertical waist-shaped through hole 50 at one end of the second conversion plate 38. The second conversion plate 38 is hinged to the fourth axis of the front cover, and the other end of the second conversion plate 38 is used for toggling connection with the first conversion plate 18. A second inner pull plate 39 is also hinged on the fourth axis of the front cover. The second inner pull plate 39 is used to enable the quick release 51 of the second inner pull plate 39 to reach the lever 49 at one end of the vertical waist-shaped through hole 50 under external force so as to shift the first conversion plate 18 through the second conversion plate 38, or the quick release 51 of the second inner pull plate 39 is misaligned with the lever 49 at the other end of the vertical waist-shaped through hole 50 under external force so that the first conversion plate 18 cannot be shifted through the second conversion plate 38.

[0074] The free end of the guide column 52 has a notch in the radial middle for applying force to open it radially outward. The outer circumferential surface of the free end of the guide column 52 has a second radial protrusion 54 to prevent the guide column from axially retreating and disengaging from the vertical arc-shaped long through hole 53 of the mounting plate 48.

[0075] The toggle connection described above can also be understood as constituting a toggle connection, that is, the relationship between the two is the relationship of toggle and being toggled. The eccentric torsion spring described above is also called a bistable torsion spring, which generally refers to a torsion spring that is not sleeved on a certain axis and does not rotate along the axis. The full name of the torsion spring is a torsion spring. The external locking rod 23 described above is also called an external safety rod. The rotation described above and below can also be called rotation. The internal locking rod 33 described above is also called an internal safety rod. The shell axis, such as the shell first axis 40..., refers to a plastic cylinder that is integrally cast with the shell. The front cover axis, such as the front cover first axis 43..., refers to a plastic cylinder that is integrally cast with the front cover. The above-mentioned sleeve on a certain axis and rotate around a certain axis is the same as the hinge connection of a certain component to a certain axis. In other words, these two statements can be interchanged and used.

[0076] See also Figure 5a , Figure 5b When the lock assembly is unlocked, an external force such as the outer pull plate 21 or the first inner pull plate 27 pushes the pawl pin 3 through the first conversion plate 18 and the release plate 17 to overcome the torsion of the pawl torsion spring 10 and rotate clockwise, driving the pawl 2 to rotate together. When the pawl 2 rotates to a state where it does not restrict the card plate 6, that is, it is disengaged from the card plate 6, the card plate 6 rotates clockwise under the drive of the card plate torsion spring 11 to reach the Figure 5b On the contrary, when the lock assembly is locked, Figure 5b Starting from the state shown in the figure, an external force such as the outer pull plate 21 or the first inner pull plate 27 pushes the card plate 6 to rotate counterclockwise through the first conversion plate 18 and the release plate 17, overcoming the torsion of the card plate torsion spring 11, and the pawl 2 is driven by the torsion of the pawl torsion spring 10 to press against the card plate 6. When the card plate 6 rotates to a position engaged with the pawl 2, the pawl 2 rotates counterclockwise under the torsion of the pawl torsion spring 10 and enters a locked position, i.e., a mutually engaged position, as shown in FIG. Figure 5a Locked state shown.

[0077] See also Figure 8a , Figure 8b When the electric release operation is performed, the motor 31 rotates in a predetermined direction, driving the worm 32 connected to the motor shaft to rotate together, and the worm drives the worm wheel 28 to rotate counterclockwise in the figure, and the worm wheel 28 drives the safety rod 20 to slide rightward along the guide groove of the front cover 24. In this process, the clutch rod 15 rotates clockwise under the torsion of the clutch rod torsion spring 14, and the clutch rod 15 and the first conversion plate 18 form a toggle connection state, that is, in the release state. Figure 8aIn the state shown, in this state, if the first inner pull plate 27 is pulled, the first inner pull plate torsion spring 26 is overcome to rotate clockwise, the first conversion plate 18 is moved, the first conversion plate 18 drives the clutch rod 15 and the release plate 17 to rotate, the release plate 17 drives the pawl pin 3 and the pawl 2 to rotate, the door lock is unlocked, that is, the door is opened. Similarly, if the outer pull plate 21 is pulled to rotate clockwise, the outer pull plate 21 drives the first conversion plate 18 to rotate counterclockwise to overcome the torsion of the release plate torsion spring 16, and drives the clutch rod 15 and the release plate 17 to rotate, the release plate 17 drives the pawl pin 3 and the pawl 2 to rotate, when the pawl 2 rotates to a state where it does not restrict the card plate 6, that is, it is disengaged from the card plate 6, the card plate 6 rotates under the action of the card plate torsion spring 11 to unlock the side door lock, that is, the door is opened.

[0078] For a side door lock equipped with an external locking rod 23, which can also be called an external safety rod, such as a side door lock of a cab, the external locking rod 23 is pulled to rotate counterclockwise around the axis, driving the external safety conversion rod 19 to rotate clockwise. The external safety conversion rod 19 moves the safety rod 20 to slide or move to the right, and the clutch rod 15 rotates clockwise back under the action of the clutch rod spring 14. The clutch rod 15 and the first conversion plate 18 form a combined state, and the first conversion plate 18 can be moved to drive the pawl pin 3 and the pawl 2 to rotate through the release plate 17 as described above. When the pawl 2 rotates to a state where it does not restrict the card plate 6, that is, it is disengaged from the card plate 6, the card plate 6 rotates under the action of the card plate torsion spring 11 to unlock the side door lock, that is, the car door is opened.

[0079] For the side door lock equipped with the inner locking rod 33, which can also be called the inner safety rod, the inner locking rod 33 is pulled to rotate clockwise around the axis, driving the worm gear 28 to rotate counterclockwise. The worm gear 28 moves the safety rod 20 to slide or move to the right, and can also move the first conversion plate 18 through the release plate 17 to achieve the above-mentioned driving of the pawl pin 3 and the pawl 2 to rotate. When the pawl 2 rotates to a state where it no longer restricts the card plate 6, that is, it is disengaged from the card plate 6, the card plate 6 rotates under the action of the card plate torsion spring 11 to unlock the side door lock, that is, the car door opens.

[0080] See also Figure 8a , Figure 8b When the electric safety operation is performed, the motor 31 rotates in a predetermined direction, driving the worm 32 connected to the motor shaft to rotate together, and the worm drives the worm wheel 28 to rotate in the clockwise direction in the figure, and the worm wheel 28 drives the safety rod 20 to slide leftward along the guide groove of the front cover 24. In this process, the clutch rod 15 overcomes the torsion of the clutch rod torsion spring 14 and rotates counterclockwise, and the clutch rod 15 and the first conversion plate 18 form a disengaged state, that is, a safety state, as shown in FIG. Figure 8bIn the state shown, in this case, if the first inner pull plate 27 is pulled to overcome the torsion force of the first inner pull plate torsion spring 26 and rotate clockwise, the first conversion plate 18 is moved, and the first conversion plate 18 cannot move the clutch rod 15, and the side door lock cannot be unlocked, that is, the door cannot be opened. If the outer pull plate 21 is pulled to rotate clockwise, the first conversion plate 18 is moved to overcome the torsion force of the release plate torsion spring 16 and rotate counterclockwise, the first conversion plate 18 cannot move the clutch rod 15, and the door lock cannot be unlocked.

[0081] For a side door lock provided with an external locking rod 23, which can also be called an external safety rod, such as a side door lock of a cab, the external locking rod 23 is operated to rotate clockwise, cooperate with and drive the external safety conversion rod 19 to rotate counterclockwise, and the safety rod 20 pushes the clutch rod 15 to rotate counterclockwise, and the clutch rod 15 and the first conversion plate 18 are in a disengaged state. At this time, the external pull plate cannot move the first conversion plate 18 and drive the pawl pin 3 and the pawl 2 to rotate through the release plate 17 as described above, and the card plate 6 cannot rotate under the action of the card plate torsion spring 11, and the door lock cannot be unlocked, that is, the door cannot be opened.

[0082] The safety conversion rod 19 also has an anti-mislocking structure, that is, it has the function of anti-mislocking: when the door of the cab is closed, the door latch pushes the card plate 6 to rotate counterclockwise, driving the upward protrusion of the card plate 6 to rotate to a position where the downward protrusion of the external safety conversion rod 19 cannot be moved, and then the external safety conversion rod 19 can be moved to drive the safety rod 20 to move left, and then push the clutch rod 15 to put on the insurance. When the door of the cab is opened, the card plate 6 rotates clockwise, driving the upward protrusion of the card plate 6 to rotate to a position where the downward protrusion of the external safety conversion rod 19 abuts, and then the downward protrusion of the external safety conversion rod 19 cannot be moved due to the abutment of the upward protrusion of the card plate 6, that is, the insurance cannot be put on. That is, when the cab door is open, the cab door cannot be put on the insurance, and the car door can always be opened, thereby avoiding the situation where the key is locked in the car.

[0083] For the side door lock provided with the inner locking rod 33, which can also be called the inner safety rod, the inner safety rod 33 is operated to rotate counterclockwise, driving the worm wheel 28 to rotate clockwise, and the worm wheel 28 drives the safety rod 20 to slide or move to the left, and the first conversion plate 18 cannot be driven to rotate the pawl pin 3 and the pawl 2 through the release plate 17 as described above, thereby unlocking the side door lock. That is, the locking function and effect can also be achieved.

[0084] For the side door lock provided with the emergency lock rod 12, in case of power shortage, such as when the car is powered off or the remote control battery is dead, the key can be used from inside the car to drive the lock cylinder connecting rod, operate the emergency lock rod 12 to rotate clockwise, drive the safety rod 20 to move to the left, and realize the function of safety, that is, the door can be locked even when the power is off when people need to leave.

[0085] Refer to 12a and 12b. For the side door lock with a child lock component, in the above-mentioned safety-released state, if the second inner pull plate 39 is pulled to rotate in the clockwise direction, the second conversion plate 38 will push the first conversion plate 18 to rotate, and the lock can be unlocked to open the side door. The child lock component is locked, which can also be called the child lock component safety: the child lock lever knob 36 is turned clockwise to drive the lever of the inner opening clutch lever 37 to slide to a position where the second inner pull plate's shifting lever 51 cannot be turned, that is, the second inner pull plate 39 is pulled to rotate clockwise around the axis, and the second conversion plate 38 cannot be turned. Therefore, the pawl pin 3 and the pawl 2 cannot be driven to rotate through the first conversion plate 18 and the release plate 17, that is, the card plate 6 cannot rotate under the action of the card plate torsion spring 11, and the side door lock cannot be unlocked, that is, the door cannot be opened, as described in 12b. Unlocking the child lock component can also be called releasing the child lock component insurance: turn the child lock lever knob 36 counterclockwise to drive the lever of the inner opening clutch lever 37 to slide to the position where the second inner pull plate 51 can be turned, that is, pull the second inner pull plate 39 to rotate counterclockwise around the axis, turn the second conversion plate 38, and drive the pawl pin 3 and the pawl 2 to rotate through the first conversion plate 18 and the release plate 17. When the pawl 2 rotates to a state where it no longer restricts the card plate 6, that is, it is disengaged from the card plate 6, the card plate 6 rotates under the action of the card plate torsion spring 11 to unlock the side door lock, that is, the car door is opened, as shown in the state shown in 12a.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A car side door lock, comprising a lock body assembly and an actuator assembly, characterized in that: The lock body assembly comprises: The outer pull plate (21) is sleeved on the first shaft (40) of the housing, rotates around the first shaft (40) of the housing, and is connected to the first conversion plate (18) by a toggle, and the outer end of the outer pull plate (21) is used to be connected to the outer handle; The first inner pull plate (27) is sleeved on the first shaft (44) of the front cover, rotates around the first shaft (44) of the front cover, and is connected to the first conversion plate (18) by a toggle, and one end of the first inner pull plate (27) is used to be connected to the inner handle; The shaft of the clutch rod (15) is rotatably sleeved with the hole of the release plate (17), the clutch rod torsion spring (14) is sleeved on the shaft of the clutch rod (15), one end of the clutch rod torsion spring (14) is connected to the clutch rod (15), and the other end is connected to the release plate (17), and the torque of the clutch rod torsion spring (14) pushes the clutch rod (15) to approach the first conversion plate (18) and form a fit; The outer circumferential surface of the boss of the release plate (17) is sleeved in the hole of the first conversion plate (18), and the inner hole of the boss of the release plate (17) is sleeved on the second shaft (41) of the shell and rotates around the second shaft (41) of the shell; the release plate torsion spring (16) is also sleeved on the second shaft (41) of the shell, one end of the release plate torsion spring (16) is connected to the shell (9), and the other end is connected to the release plate (17) and the first conversion plate (18); the release plate (17) and the first conversion plate (18) can overcome the torsion of the release plate torsion spring (16) under the drive of external force, rotate around the second shaft (41) of the shell and push the pawl (2) to rotate to the release position through the pawl pin (3); The pawl pin (3) is fixed on the pawl (2), and the pawl rivet (4) is riveted on the bottom plate (1) connected to the housing (9); the pawl (2) is sleeved on the pawl rivet (4) and rotates around the pawl rivet (4); the pawl torsion spring (10) is sleeved on the pawl rivet (4), one end of the pawl torsion spring (10) is connected to the housing (9), and the other end is connected to the pawl pin (3), and when the pawl pin (3) rotates under the action of an external force to overcome the torque of the pawl torsion spring (10), the pawl (2) is driven to rotate together; The card plate rivet (7) is riveted to the bottom plate (1); the card plate (6) is sleeved on the card plate rivet (7) and rotates around the card plate rivet (7); the card plate torsion spring (11) is sleeved on the third shaft (42) of the housing and rotates around the third shaft (42) of the housing; one end of the card plate torsion spring (11) is connected to the housing (9) and the other end is connected to the card plate (6).

2. The automobile side door lock according to claim 1, characterized in that: The execution components include: A plurality of metal conductive sheets are embedded in the front cover (24) connected to the housing (9), one end of the metal conductive sheet is connected to a plug located in a socket (24c) of the front cover (24), the plug being used to electrically connect to a vehicle body wiring harness, and the other end of the metal conductive sheet is connected to a motor (31) installed in the front cover (24) and at least one micro switch installed in the front cover (24); A worm (32) is disposed on the shaft of the motor (31); a worm wheel (28) meshing with the worm (32) and constituting a worm gear transmission mechanism is sleeved on the second shaft (43) of the front cover and rotates around the second shaft (43) of the front cover; one end of an eccentric torsion spring (29) is connected to the worm wheel (28) and the other end is connected to the front cover (24) so ​​as to keep the worm wheel (28) at one of two extreme positions; The safety rod (20) is slidably fitted in the guide groove in the front cover (24) and can move linearly. One end of the worm wheel (28) is connected to one end of the safety rod (20) in a toggle connection, and the other end of the safety rod (20) is against the clutch rod (15).

3. The automobile side door lock according to claim 2, characterized in that: The micro switch comprises a first micro switch (25a), the contact of which abuts against a side surface of a linearly movable safety bar (20), and is used to output an electrical signal of the moving state of the safety bar (20) via a conductive sheet and a vehicle body wiring harness to inform the driver.

4. The automobile side door lock according to claim 2, characterized in that: The actuator assembly also includes an inner locking rod (33), which is sleeved on the third axis (46) of the front cover and rotates around the third axis (46) of the front cover. One end of the inner locking rod (33) is connected to the worm gear (28) in a toggle manner, and the other end is used to connect to the inner handle.

5. The automobile side door lock according to claim 2, characterized in that: The lock body assembly further comprises an external locking rod (23) and an external safety conversion rod (19); the external locking rod (23) is sleeved on the fourth shaft (57) of the housing and rotates around the fourth shaft (57) of the housing; one end of the external locking rod (23) is used for being hinged to the lock core connecting rod on the vehicle door; the other end of the external locking rod (23) is connected to the external safety conversion rod (19) by being toggled; the external safety conversion rod (19) is sleeved on the fifth shaft (47) of the housing and rotates around the fifth shaft (47) of the housing; one side of the external safety conversion rod (19) is hinged to the safety rod (20) and can drive the safety rod (20) to move left and right; the bottom surface of the external safety conversion rod (19) also has a downward protrusion used for cooperating with the upward protrusion of the clamping plate (6) to prevent mis-locking.

6. The automobile side door lock according to claim 2, characterized in that: The lock body assembly also includes an emergency lock rod (12), which is rotatably engaged in a through hole (55) of the shell (9), the inner end surface of the emergency lock rod (12) is axially limited by the back plate (13), a pawl for unidirectionally moving the safety rod (20) is fixed to the top of the outer circumference of the emergency lock rod (12), a first radial protrusion (45) for preventing abnormal noise is provided in the middle of the outer circumference of the emergency lock rod (12), and a groove (56) is provided at the outer end of the emergency lock rod (12) for a key to be inserted and rotated for unidirectional safety.

7. The automobile side door lock according to claim 2, characterized in that: The actuator assembly further comprises a child lock component, the child lock component comprising: a rotary lever (36) rotatably engaged in a circular hole of a mounting plate (48) fixed to the housing and in a circular hole of a rear cover (34); one end of the rotary lever (36) is slidably engaged in a vertical arc-shaped long through hole (53) of the mounting plate (48) via a guide column (52); the other end of the rotary lever (36) is hinged to one end of an inner opening clutch rod (37); a lever column (49) on the other end of the inner opening clutch rod (37) is slidably engaged in a vertical waist-shaped through hole (50) at one end of a second conversion plate (38); the second conversion plate (38) is hinged to the front On the fourth axis of the cover, the other end of the second conversion plate (38) is used for being connected to the first conversion plate (18) for being swivel-connected. A second inner pull plate (39) is also hinged on the fourth axis of the front cover. The second inner pull plate (39) is used for, under the pulling of an external force, the quick release (51) of the second inner pull plate (39) abuts against the shifting post (49) at one end of the vertical waist-shaped through hole (50) to shift the first conversion plate (18) through the second conversion plate (38), or under the pulling of an external force, the quick release (51) of the second inner pull plate (39) and the shifting post (49) at the other end of the vertical waist-shaped through hole (50) are misaligned so that the first conversion plate (18) cannot be shifted through the second conversion plate (38).

8. The automobile side door lock according to claim 7, characterized in that: The free end of the guide column (52) has a notch in the radial middle for applying force to open it radially outward, and the outer circumferential surface of the free end of the guide column (52) has a second radial protrusion (54) to prevent the guide column from axially retreating and disengaging from the vertical arc-shaped long through hole (53) of the mounting plate (48).

9. The automobile side door lock according to claim 2, characterized in that: The lock body assembly also includes a first inner pull plate torsion spring (26), and the first inner pull plate torsion spring (26) is also sleeved on the second shaft (43) of the front cover. One end of the first inner pull plate torsion spring (26) is connected to the first inner pull plate (27), and the other end is connected to the front cover (24).

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