CN111305666B

CN111305666B - Car side door lock

Info

Publication number: CN111305666B
Application number: CN201911342986.XA
Authority: CN
Inventors: 刘玉会; 励凯亮; 邱遥杰
Original assignee: Ningbo City Yongbo Car Industry Co ltd
Current assignee: Ningbo City Yongbo Car Industry Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2025-01-28
Anticipated expiration: 2039-12-24
Also published as: CN111305666A

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

Automobile side door lock

Technical Field

The invention relates to the technical field of automobile accessories, in particular to an automobile side door lock.

Background

The prior art automobile side door lock is a mature technology, and generally comprises a lock body assembly and an execution assembly, wherein the execution assembly is also called an executor assembly or a lock, the lock body assembly comprises a basic locking unit consisting of a pawl rotating around a rivet and a clamping plate or a lock tongue rotating around the rivet, a worm and gear electric mechanism and other manual mechanisms are driven by a motor in the execution assembly to ensure or release safety, and then the lock is unlocked from the outside or the inside of an automobile. The automobile side door locks in the prior art have different structures and different functions. However, the applicant knows that the automobile side door lock in the prior art still has the defects that 1 the parts forming the side door lock are relatively more, the parts formed by the parts are relatively more, the occupied space is relatively larger, the flexibility and mechanical property of connection between the parts are not ideal, the flexibility is not enough in unlocking and locking operation processes, the reliability is not strong, the operation is relatively laborious, and the service life of the lock is affected to a certain extent. 2. Because the parts are relatively more, the material cost is relatively higher, meanwhile, the assembly procedures are relatively more, the assembly efficiency is relatively not high, the assembly labor cost is relatively increased, and the price competitive advantage of the product is not obvious. 3. Some executive components adopt split type structures of front cover and electrical components, waterproof effect is not ideal, has increased the assembly degree of difficulty. 4. Some parts have abnormal noise, so that noise is increased, and some parts have low working reliability and are inconvenient to assemble.

Disclosure of Invention

The invention aims to solve the technical problem of providing the automobile side door lock with relatively fewer parts forming the lock body assembly, relatively fewer parts forming the lock body assembly and relatively ideal connection flexibility and mechanical property between the parts of the lock body assembly.

The technical scheme of the invention is that the automobile side door lock comprises a lock body assembly and an execution assembly, wherein the lock body assembly comprises:

The outer pull plate is sleeved on the first shaft of the shell, rotates around the first shaft of the shell and is connected with the first conversion plate in a poking manner, and the outer end of the outer pull plate is used for being connected with the outer handle;

the first inner pulling plate is sleeved on the first shaft of the front cover, rotates around the first shaft of the front cover and is connected with the first conversion plate in a poking way, and one end of the first inner pulling plate is used for being connected with the inner handle;

the shaft of the clutch lever is rotationally sleeved with the hole of the release plate, the torsion spring of the clutch lever is sleeved on the shaft of the clutch lever, one end of the torsion spring of the clutch lever is connected with the clutch lever, the other end of the torsion spring of the clutch lever is connected with the release plate, and the torsion of the torsion spring of the clutch lever pushes the clutch lever to approach the first conversion plate and form fit;

the outer circumferential surface of the boss of the release plate is sleeved in the hole of the first conversion plate, the inner hole of the boss of the release plate is sleeved on the second shaft of the shell and rotates around the second shaft of the shell, the torsion spring of the release plate is sleeved on the second shaft of the shell, one end of the torsion spring of the release plate is connected with the shell, and the other end of the torsion spring of the release plate is connected with the release plate and the first conversion plate;

The pawl torsion spring is sleeved on the pawl rivet, one end of the pawl torsion spring is connected with the shell, the other end of the pawl torsion spring is connected with the pawl pin, and the pawl pin drives the pawl to rotate together when overcoming the torque of the pawl torsion spring under the action of external force;

the clamping plate rivet is riveted on the bottom plate, the clamping plate is sleeved on the clamping plate rivet and rotates around the clamping plate rivet, the clamping plate torsion spring is sleeved on the third shaft of the shell and rotates around the third shaft of the shell, one end of the clamping plate torsion spring is connected to the shell, and the other end of the clamping plate torsion spring is connected to the clamping plate.

After the structure is adopted, the automobile side door lock has the advantages that the parts forming the lock body assembly are relatively few, the occupied space is relatively small, the flexibility and the mechanical property of connection between the parts are very ideal, the flexibility and the reliability of unlocking and locking operation processes are strong, the operation is relatively simple and labor-saving, and the service life of the lock is prolonged. Meanwhile, the automobile side door lock has relatively few parts forming the lock body assembly, so that the material cost is relatively reduced, the assembly process is relatively reduced, the assembly efficiency is relatively improved, the assembly labor cost is relatively reduced, and the price competitive advantage of the automobile side door lock is obvious.

Further, the execution component includes:

a plurality of metal conducting strips are embedded in the front cover connected with the shell, one end of each metal conducting strip is connected with a plug positioned in a front cover socket, the plug is used for being electrically connected with a vehicle body wire harness, and the other end of each metal conducting strip is connected with a motor arranged in the front cover and at least one micro switch arranged in the front cover;

The motor shaft is provided with a worm, a worm wheel meshed with the worm and forming a worm and gear transmission mechanism is movably sleeved on the second shaft of the front cover and can rotate around the second shaft of the front cover;

The safety rod is in sliding fit on the guide groove in the front cover and can move linearly, one end of the worm wheel is connected with one end of the safety rod in a poking way, and the other end of the safety rod can be propped against the clutch rod;

After the structure is adopted, the front cover and the electric appliance component are made into a whole by the execution component, namely, all parts of the execution component are directly arranged on the front cover, the waterproof effect is good, the bumper adopts an axial sliding structure, the parts forming the execution component are relatively few, the occupied space is relatively small, the flexibility and the mechanical property of connection between the parts of the execution component are very ideal, the flexibility and the reliability of unlocking and locking operation processes are strong, the operation is relatively simple and labor-saving, and the service life of the lock is prolonged. Meanwhile, the side door lock has relatively few parts for forming the execution assembly, so that the material cost is relatively reduced, the assembly process is relatively reduced, the assembly efficiency is relatively improved, the assembly labor cost is relatively reduced, and the price competitive advantage of the product is obvious.

Further, the micro switch comprises a first micro switch, wherein a contact of the first micro switch is abutted to one side face of the bumper which moves linearly, and the micro switch is used for outputting an electric signal of the moving state of the bumper through the conducting plate and the vehicle body wire harness so as to inform a driver. After the structure is adopted, the sensitivity of the first micro switch is better, and the accuracy is higher.

Further, the execution assembly further comprises an inner locking rod which is sleeved on the third shaft of the front cover and rotates around the third shaft of the front cover, one end of the inner locking rod is connected with the worm wheel in a stirring mode, and the other end of the inner locking rod is connected with the inner handle. After the structure is adopted, a layer of insurance is added, and under the condition of power failure of an automobile or power failure of a remote control battery, an inner lock stay wire is pulled from the inside of the automobile, so that the insurance can be also realized or released.

The lock body assembly further comprises an outer locking rod and an outer safety switching rod, wherein the outer locking rod is sleeved on a fourth shaft of the shell and rotates around the fourth shaft of the shell, one end of the outer locking rod is hinged with a lock cylinder connecting rod on a vehicle door, the other end of the outer locking rod is connected with the outer safety switching rod in a poking mode, the outer safety switching rod is sleeved on a fifth shaft of the shell and rotates around the fifth shaft of the shell, one side of the outer safety switching rod is hinged with the safety rod and can drive the safety rod to move left and right, and a downward protruding block which is matched with an upward protruding block of a clamping plate to play a role of preventing false locking is arranged on the bottom surface of the outer safety switching rod. After the structure is adopted, a layer of insurance is added, and under the condition of power failure of an automobile or power failure of a remote control battery, a key is used for driving a lock core connecting rod from outside the automobile, so that the insurance can be realized or released. The safety switch rod body and the anti-misoperation lock structure have the advantages that when the automobile door of the cab is closed, the latch pushes the clamping plate to rotate anticlockwise, the upward protruding block of the clamping plate is driven to rotate to the position where the downward protruding block of the outer safety switch rod cannot be poked, at the moment, the outer safety switch rod can be poked, the safety rod is driven to move leftwards, the clutch rod is further pushed to carry out safety, when the automobile door of the cab is opened, the clamping plate is driven to rotate clockwise, the upward protruding block of the clamping plate is driven to rotate to the position where the upward protruding block of the outer safety switch rod abuts against, and at the moment, the downward protruding block of the outer safety switch rod cannot be poked due to the fact that the upward protruding block of the clamping plate abuts against, namely, safety cannot be achieved. That is, the door of the cab cannot be secured in an opened state, and the door can be opened all the time, thereby avoiding the occurrence of a key lock in the vehicle. The safety switching rod has dual purposes, saves materials and space, is relatively simple to assemble and is simple and convenient to operate.

Further, the lock body assembly further comprises an emergency lock rod which is in rotary fit in a through hole of the shell, the inner end face of the emergency lock rod is axially limited by the back plate, a claw for one-way poking the safety rod is fixed at the top of the outer circumference of the emergency lock rod, a radial protrusion for preventing abnormal sound is arranged in the middle of the outer circumference of the emergency lock rod, and a groove for a key to insert and rotate to be one-way up-insurance is arranged on the outer end face of the emergency lock rod. After adopting above structure, increased one deck insurance again, lack under the circumstances such as car outage or remote control battery do not have the electricity, can utilize the key to drive the lock core connecting rod in the car, can realize going up the insurance promptly that the people need leave even having a power failure also can lock the door. Compared with the prior art, the emergency lock rod has the advantages of small volume, small occupied space, simple connection with the safety rod, flexible and reliable upper safety operation and low noise.

Further, the execution assembly further comprises a child lock component, the child lock component comprises a knob shift lever which is in rotary fit in a round hole of a mounting plate fixed on the shell and a round hole of the rear cover, one end of the knob shift lever is in sliding fit in a vertical arc-shaped long through hole of the mounting plate through a guide post, the other end of the knob shift lever is hinged with one end of an inward opening clutch lever, a shift column on the other end of the inward opening clutch lever is in sliding fit in a vertical waist-shaped through hole at one end of a second conversion plate, the second conversion plate is hinged on a fourth shaft of the front cover, the other end of the second conversion plate is used for being in shifting connection with the first conversion plate, a second inner pull plate is further hinged on the fourth shaft of the front cover, and the second inner pull plate is used for shifting the first conversion plate through the second conversion plate by pushing a shifting column at one end of the vertical waist-shaped through hole by a shifting block fast, or shifting the second inner pull plate is in dislocation with the shifting column at the other end of the vertical waist-shaped through hole by the second conversion plate by pulling the external force. After the structure is adopted, the parts forming the child lock component are relatively few, the occupied space is relatively small, the flexibility and mechanical property of connection between the parts are very ideal, the child unlocking and locking operation processes are flexible and reliable, the operation is relatively simple and labor-saving, and the material cost and the labor assembly cost are relatively saved.

Further, a linear notch is arranged in the radial middle of the free end of the guide post for forcing the guide post to open outwards in the radial direction, and a second radial bulge for preventing the guide post from retreating axially and separating from the vertical arc-shaped long through hole of the mounting plate is arranged on the outer circumferential surface of the free end of the guide post. After the structure is adopted, the assembly or the disassembly of the child lock component is simple and convenient, the guide post can keep good guiding performance, and the unlocking or locking operation process of the child lock component is more flexible and reliable.

Further, the lock body assembly further comprises a first inner pull plate torsion spring, the front cover second shaft is further sleeved with the first inner pull plate torsion spring, one end of the first inner pull plate torsion spring is connected with the first inner pull plate, and the other end of the first inner pull plate torsion spring is connected with the front cover.

Drawings

Fig. 1 is a schematic view of the external structure of the side door lock of the automobile of the present invention.

Fig. 2 is a schematic view of an exploded structure of the side door lock of the automobile of the present invention.

Fig. 3 is a schematic view of the explosive structure in the bottom view of fig. 1.

Fig. 4 is a schematic view of the explosion structure of the housing of fig. 1 with the top cover removed.

FIG. 5a is a schematic diagram showing a locking state of the ratchet and the clamping plate according to the present invention.

FIG. 5b is a schematic diagram showing the structure of the ratchet and the locking plate in the unlocking state according to the present invention.

Fig. 6 is a schematic view of the explosive structure of the actuator assembly of the present invention with the rear cover removed.

Fig. 7 is a schematic view showing the position of the micro switch in the actuating assembly after the rear cover is removed.

Fig. 8a is a schematic structural view of the electric arming state at the actuator assembly of the present invention.

Fig. 8b is a schematic structural view of the electric arming state at the actuator assembly of the present invention.

Fig. 9 is a schematic view of an exploded structure of the child lock mechanism of the present invention as seen from the rear to the front when connected to the housing.

Fig. 10 is a schematic view of the child lock member itself as seen from the rear-to-front direction in the present invention.

Fig. 11 is a schematic view of the child lock member of the present invention as seen from the front to the rear in a depression direction when connected to the housing.

Fig. 12a is a schematic view of the child lock mechanism of the present invention in an arming state.

Fig. 12b is a schematic view of the child lock mechanism of the present invention in a secured condition.

Fig. 13 is a schematic view showing a structure in which the emergency lock lever is mounted on the housing in the present invention.

Fig. 14 is a schematic view showing an exploded structure of the emergency lock lever connected to the housing and the safety lever in the present invention.

Fig. 15 is a schematic view of the emergency lock lever body according to the present invention.

Fig. 16a is a schematic rear view showing a state where the emergency lock lever is not secured in the present invention.

Fig. 16b is a schematic rear view showing the safety state of the emergency lock lever according to the present invention.

The figure shows: 1, bottom plate, 2, pawl, 3, detent pin, 4, detent rivet, 5, detent buffer, 6, catch, 7, catch rivet, 8, catch buffer, 9, housing, 10, detent torsion spring, 11, catch torsion spring, 12, emergency lock lever, 13, back plate, 14, clutch lever torsion spring, 15, clutch lever, 16, release plate torsion spring, 17, release plate, 18, first switch plate, 19, outer safety switch lever, 20, bumper, 21, outer pull plate, 22, outer pull plate buckle, 23, outer lock lever, 24, front cover, 24a, first snap, 24b, second snap, 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, rear cover, 34a, first male buckle, 34b, second male buckle, 35, screw, 36, child lock shift lever knob, 37, inner open clutch rod, 38, second conversion plate, 39, second inner pull plate, 40, housing first shaft, 41, housing second shaft, 42, housing third shaft, 43, front cover second shaft, 44, front cover first shaft, 45, first radial protrusion, 46, front cover third shaft, 47, housing fifth shaft, 48, mounting plate, 49, shift post, 50, vertical kidney-shaped through hole, 51, shift of second inner pull plate, 52, guide post, 53, vertical arc-shaped long through hole, 54, second radial protrusion, 55, through hole, 56, groove, 57, housing fourth shaft.

Detailed Description

The following describes the embodiments of the present invention further with reference to the drawings. It should be noted that the description of these embodiments is for aiding in understanding the present invention, but is not to be construed as limiting the invention. In addition, the technical features described in the following embodiments of the present invention may be combined with each other as long as they do not collide with each other.

The invention relates to an automobile side door lock, which comprises a lock body assembly and an execution assembly. The actuator assembly may also be referred to as an actuator assembly or actuator or latch.

As shown in fig. 1, 2, 3, 4, 5a, 5b, 8a, 8 b:

The lock body assembly includes:

the outer pulling plate 21 is sleeved on the first shaft 40 of the shell, rotates around the first shaft 40 of the shell and is connected with the first conversion plate 18 in a poking mode. The outer end of the outer pulling plate 21 is adapted to be connected to an outer handle, e.g. the outer end of the outer pulling plate 21 may be adapted to be connected to one end of a pulling wire, the other end of which may be adapted to be connected to the outer handle. The outer pull plate buckle 22 can be arranged outside the first shell shaft 40 to axially limit the outer pull plate 21, namely, the outer pull plate buckle 22 is sleeved on the first shell shaft 40, the outer pull plate 21 is sleeved outside the outer pull plate buckle 22, and the outer pull plate buckle 22 and the first shell shaft 40 are provided with structures for axially limiting the outer pull plate 21.

The first inner pull plate 27 is sleeved on the front cover first shaft 44, rotates around the front cover first shaft 44 and is connected with the first conversion plate 18 in a poking mode. One end of the first inner pull plate 27 is adapted to be connected to an outer handle, e.g., one end of the first inner pull plate 27 may be adapted to be connected to one end of a pull wire, and the other end of the pull wire may be adapted to be connected to an inner handle. The lock body assembly may further include a first inner tension plate torsion spring 26, wherein the first inner tension plate torsion spring 26 is also sleeved on the front cover first shaft 44, one end of the first inner tension plate torsion spring 26 is connected with the first inner tension plate 27, and the other end is connected with the front cover 24.

The shaft of the clutch lever 15 is rotationally sleeved with the hole of the release plate 17, the clutch lever torsion spring 14 is sleeved on the shaft of the clutch lever 15, one end of the clutch lever torsion spring 14 is connected with the clutch lever 15, the other end of the clutch lever torsion spring 14 is connected with the release plate 17, and the torque of the clutch lever torsion spring 14 pushes the clutch lever 15 to approach the first conversion plate 18 and form fit. The mating may be understood as contacting or not contacting.

The outer circumferential surface of the boss of the release plate 17 is fitted in the hole of the first conversion plate 18, and the inner hole of the boss of the release plate 17 is fitted on the housing second shaft 41 and rotates around the housing second shaft 41. The release plate torsion spring 16 also fits over the housing second shaft 41. 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 switch plate 18. The release plate 17 and the first conversion plate 18 are driven by an external force to overcome the torsion force of the release plate torsion spring 16, rotate around the second housing shaft 41 and push the pawl 2 to rotate towards the release position via the pawl pin 3.

The detent pin 3 is fixed to the detent 2, and the detent rivet 4 is riveted to the base plate 1 connected to the housing 9. The pawl 2 is fit over the pawl rivet 4 and rotates about 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 with the shell 9, the other end of the pawl torsion spring 10 is connected with the pawl pin 3, and the pawl pin 3 drives the pawl 2 to rotate together when overcoming the torque rotation of the pawl torsion spring 10 under the action of external force. The lock assembly may further include a pawl buffer 5 coupled to the housing 9 for buffering and eliminating noise when the pawl 2 is reset under the force of the pawl torsion spring 10.

The clamping plate rivet 7 is riveted on the bottom plate 1, and the clamping plate 6 is sleeved on the clamping plate rivet 7 and rotates around the clamping plate rivet 7. The clamping plate torsion spring 11 is sleeved on the third shaft 42 of the shell and rotates around the third shaft 42 of the shell, one end of the clamping plate torsion spring 11 is connected to the shell 9, and the other end of the clamping plate torsion spring 11 is connected to the clamping plate 6. The lock body assembly can also comprise a lock catch buffer block 8 which is connected to the shell 9 and used for buffering and eliminating noise when the clamping plate 6 resets under the acting force of the clamping plate torsion spring 11.

The lock body assembly may further include a back plate 13, the back plate 13 being riveted to the click rivet 4 and the click rivet 7 passing through the housing 9, so that the click rivet 4 and the click rivet 7 are more firmly fixed.

The lock body assembly may further include an outer locking bar 23 and an outer safety switching bar 19. The outer locking rod 23 is sleeved on the fourth shaft 57 of the shell and rotates around the fourth shaft 57 of the shell, one end of the outer locking rod 23 is used for being hinged with a lock core connecting rod on a vehicle door, and the other end of the outer locking rod 23 is connected with the outer safety switching rod 19 in a poking mode. The outer safety switching lever 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 outer safety switching lever 19 is hinged with the safety lever 20 and can drive the safety lever 20 to move left and right, and the bottom surface of the outer safety switching lever 19 is also provided with a downward protruding block (the downward protruding block and the upward protruding block are not shown in the figure) for being matched with the upward protruding block of the clamping plate 6 to play a role of preventing false locking. Finally, the bottom surface of the outer safety switching lever 19 has a structure that is brought into contact with or separated from the card 6.

As shown in fig. 13, 14, 15, 16a, 16 b:

the lock body assembly may further comprise an emergency lock rod 12, the emergency lock rod 12 is rotatably fitted in a through hole 55 of the housing 9, an inner end surface of the emergency lock rod 12 is axially limited by the back plate 13, and a claw for unidirectional poking of the safety rod 20 is fixed on top of the outer circumference of the emergency lock rod 12. The emergency lock lever 12 has a first radial protrusion 45 for preventing abnormal sound in the middle of the outer circumference thereof, and a groove 56 for the key to be inserted and rotated to be secured in one direction is formed at the outer end of the emergency lock lever 12.

As shown in fig. 1, 6, 7, 8a, 8 b:

The execution assembly includes:

A plurality of metal conductive sheets are embedded in the front cover 24 connected with the shell 9. One end of the metal conducting strip is connected with a plug positioned in the socket 24c of the front cover 24, the plug is used for being electrically connected with a wire harness of the vehicle body, and the other end of the metal conducting strip is connected with a motor 31 arranged in the front cover 24 and at least one micro switch arranged in the front cover 24.

The motor 31 has a worm 32 on its shaft, and a worm wheel 28 engaged with the worm 32 and constituting a worm gear mechanism is fitted over the front cover second shaft 43 and rotates around the front cover second shaft 43. An eccentric torsion spring 29 has one end connected to the worm wheel 28 and the other end connected to the front cover 24, so that the worm wheel 28 is held at one of two extreme positions, and this structure can provide a shift feel.

The bumper 20 is slidably fitted in a guide slot in the front cover 24 and can move linearly, one end of the worm wheel 28 is in toggle connection with one end of the bumper 20, and the other end of the bumper 20 abuts against the clutch lever 15.

The rear cover 34 and the front cover 24 are connected to each other to enhance the overall strength of the actuator assembly. As shown in fig. 6, the front cover 24 and the rear cover 34 may be fastened by a plurality of pairs or more of male and female buckles 34a, 24a and 34b, 24b, for example, a plurality of first male buckles 34a and a plurality of first female buckles 24a are fastened to each other in a one-to-one correspondence manner, and a plurality of second male buckles 24b and a plurality of second female buckles 24a are fastened to each other in a one-to-one correspondence manner. And the male and female buckles can be used for clamping at other positions not shown in the drawing. At the same time, the rear cover 34 and the front cover 24 are connected with each other, and a plurality of screws 35 can be added to be screwed with the threaded holes for further reinforcement.

The rear cover 34 and the front cover 24 can be designed into a structure with matched protrusions and grooves, and can be sealed and waterproof by adopting sealing strips and the like.

The actuator assembly may further include a worm gear buffer block 30, wherein the worm gear buffer block 30 is disposed between the front cover 24 and the worm gear 28, and is operative to buffer and eliminate noise.

The actuating assembly may further include an inner locking rod 33, where the inner locking rod 33 is sleeved on the third shaft 46 of the front cover and rotates around the third shaft 46 of the front cover, one end of the inner locking rod 33 is connected with the worm wheel 28 in a toggle manner, the other end of the inner locking rod 33 is connected with the inner handle, for example, the other end of the inner locking rod 33 is connected with one end of a pull wire, and the other end of the pull wire is connected with the inner handle.

The micro-switches may be a plurality of micro-switches, such as 3 micro-switches, including a first micro-switch 25a, a second micro-switch 25b, and a third micro-switch 25c, which are respectively connected to the metal conductive sheet of the front cover 24.

The contact of the first micro switch 25a is abutted against one side surface of the bumper 20 moving linearly, for outputting an electric signal of the state of movement of the bumper 20 via the conductive sheet and the vehicle body harness to inform the driver. In other words, the position for the linear movement of the bumper 20 is collected, so that the state of the safety is known, and an electric signal can be outputted through the conductive sheet inside the front cover 24.

And the micro switch 25b arranged in the front cover 24 is matched with the outer Zhou Humian of the clamping plate 6 and is used for collecting the rotating position of the clamping plate and outputting an electric signal through the metal conducting strip in the front cover 24.

The micro switch 25c arranged in the front cover 24 is matched with the rotating surface of the outer locking rod 23 and used for collecting the rotating position of the outer locking rod 23 and outputting an electric signal through the metal conducting plate in the front cover 24.

As shown in fig. 9, 10, 11, 12a, 12 b:

The execution assembly further comprises a child lock component, wherein the child lock component comprises a knob shift lever 36 which is in rotary fit in a round hole of a mounting plate 48 fixed on the shell and a round hole of a rear cover 34, one end of the knob shift lever 36 is in sliding fit in a vertical arc-shaped long through hole 53 of the mounting plate 48 through a guide post 52, the other end of the knob shift lever 36 is hinged with one end of an inward opening clutch lever 37, and a shift post 49 on the other end of the inward opening clutch lever 37 is in sliding fit in a vertical waist-shaped through hole 50 at one end of a second conversion plate 38. The second conversion plate 38 is hinged on the fourth shaft of the front cover, and the other end of the second conversion plate 38 is used for being connected with the first conversion plate 18 in a poking mode. The fourth shaft of the front cover is also hinged with a second inner pull plate 39, and the second inner pull plate 39 is used for pushing a poking speed 51 of the second inner pull plate 39 against a poking column 49 positioned at one end of the vertical kidney-shaped through hole 50 under the pulling of an external force so as to poke the first conversion plate 18 through the second conversion plate 38, or the poking speed 51 of the second inner pull plate 39 is misplaced with the poking column 49 positioned at the other end of the vertical kidney-shaped through hole 50 under the pulling of the external force so as not to poke the first conversion plate 18 through the second conversion plate 38.

The free end of the guide post 52 has a linear notch in the radial middle for applying force to open the guide post radially outwards, and a second radial protrusion 54 is provided on the outer circumferential surface of the free end of the guide post 52 for preventing the guide post from axially retreating to disengage from the vertical arc-shaped long through hole 53 of the mounting plate 48.

The toggle connection described above may also be understood as constituting a toggle connection, i.e. the relationship between the two is a toggle and a toggled relationship. The eccentric torsion spring, also known as bistable torsion spring, generally refers to a torsion spring that is not sleeved on a certain shaft and does not rotate along the shaft. The torsion spring is called torsion spring. The outer locking lever 23 is also called an outer bumper. The rotation described above and below may also be referred to as rotation. The inner locking lever 33 is also called an inner bumper. The housing, which axis is like the housing first axis 40, refers to a plastic cylinder integrally cast with the housing as a whole. The front cover first shaft 43 is a plastic cylinder integrally molded with the front cover. The above-mentioned is fitted around a certain axis and rotated around a certain axis, and is hinged with a certain component and a certain axis, in other words, the two terms are used interchangeably.

Referring to fig. 5a and 5b, when the lock body assembly is unlocked, an external force such as the external pulling plate 21 or the first internal pulling plate 27 pushes the pawl pin 3 to rotate clockwise against the torsion force of the pawl torsion spring 10 via the first conversion plate 18 and the release plate 17, so as to drive the pawl 2 to rotate together. When the pawl 2 rotates to a state of not restraining the card 6, that is, is disengaged from the card 6, the card 6 rotates clockwise by the drive of the card torsion spring 11 to reach an unlocked state shown in fig. 5 b. On the contrary, when the lock body assembly is locked, from the state shown in fig. 5b, an external force such as the external pulling plate 21 or the first internal pulling plate 27 pushes the clamping plate 6 to rotate anticlockwise through the first conversion plate 18 and the release plate 17, the torsion force of the clamping plate torsion spring 11 is overcome, the pawl 2 is tightly abutted to the clamping plate 6 under the torsion force drive of the pawl torsion spring 10, and when the clamping plate 6 rotates to the position meshed with the pawl 2, the pawl 2 rotates anticlockwise under the torsion drive of the pawl torsion spring 10 and enters the locked position, namely the mutually meshed position, as shown in the locked state shown in fig. 5 a.

Referring to fig. 8a and 8b, when the electric arming operation is performed, the motor 31 rotates in a predetermined direction, driving the worm 32 coupled to the motor shaft to rotate together, the worm driving the worm wheel 28 to rotate counterclockwise in the drawing, and the worm wheel 28 driving the bumper 20 to slide rightward along the guide groove of the front cover 24. In this process, the clutch lever 15 rotates clockwise under the torsion force of the clutch lever torsion spring 14, the state that the clutch lever 15 and the first conversion plate 18 are connected in a poking way is in a disarmed state, as shown in fig. 8a, in this state, if the first inner pull plate 27 is pulled, the torsion force of the first inner pull plate torsion spring 26 is overcome to rotate clockwise, the first conversion plate 18 is poked, the first conversion plate 18 drives the clutch lever 15 and the release plate 17 to rotate, and the release plate 17 drives the ratchet pin 3 and the ratchet 2 to rotate, so that the door lock is unlocked, i.e. the door is opened. Similarly, if the outer pulling plate 21 is pulled to rotate clockwise, the outer pulling plate 21 pulls the first conversion plate 18 to rotate anticlockwise against the torsion force of the release plate torsion spring 16 and drives the clutch lever 15 and the release plate 17 to rotate, the release plate 17 drives the pawl pin 3 and the pawl 2 to rotate, and when the pawl 2 rotates to a state of not limiting the clamping plate 6, namely, is separated from the clamping plate 6, the clamping plate 6 rotates under the action force of the clamping plate torsion spring 11 to unlock the side door lock, namely, the door is opened.

For a side door lock with an outer locking rod 23 and also called as an outer safety rod, such as a side door lock of a cab, the outer locking rod 23 is pulled to rotate anticlockwise around a shaft to drive the outer safety switching rod 19 to rotate clockwise, the outer safety switching rod 19 toggles the safety rod 20 to slide rightwards or move rightwards, the clutch rod 15 rotates clockwise to return under the action of the clutch rod spring 14, the clutch rod 15 and the first switching plate 18 form a combined state, the first switching plate 18 can be toggled, the pawl 2 can rotate through the release plate 17 to drive the pawl pin 3 and the pawl 2 to rotate, and when the pawl 2 rotates to a state without limiting the clamping plate 6, namely, is disconnected from the clamping plate 6, the clamping plate 6 rotates under the action force of the clamping plate torsion spring 11 to unlock the side door lock, namely, the vehicle door is opened.

For the side door lock provided with the inner locking rod 33 and also called as an inner safety rod, the inner locking rod 33 is pulled to rotate clockwise around the shaft to drive the worm wheel 28 to rotate anticlockwise, the worm wheel 28 drives the safety rod 20 to slide rightwards or move, the first conversion plate 18 can also be pulled to drive the pawl pin 3 and the pawl 2 to rotate through the release plate 17, and when the pawl 2 rotates to a state without limiting the clamping plate 6, namely, is separated from the clamping plate 6, the clamping plate 6 rotates under the acting force of the clamping plate torsion spring 11 to unlock the side door lock, namely, the door is opened.

Referring to fig. 8a and 8b, when the electric upper safety operation is performed, the motor 31 rotates in a predetermined direction, driving the worm 32 coupled to the motor shaft to rotate together, the worm driving the worm wheel 28 to rotate clockwise in the drawing, and the worm wheel 28 driving the safety lever 20 to slide leftwards along the guide groove of the front cover 24. In this process, the clutch lever 15 rotates counterclockwise against the torsion of the clutch lever torsion spring 14, and the clutch lever 15 and the first conversion plate 18 form a disengaged state, i.e., an up-safe state, as shown in fig. 8b, in which case, if the first inner pull plate 27 is pulled, the first conversion plate 18 is pulled against the torsion of the first inner pull plate torsion spring 26 to rotate clockwise, and the first conversion plate 18 cannot be pulled, i.e., the door cannot be opened, because the first conversion plate 18 cannot pull the clutch lever 15. If the outer pulling plate 21 is pulled to rotate clockwise, the first conversion plate 18 is pulled to rotate anticlockwise against the torsion force of the release plate torsion spring 16, the first conversion plate 18 cannot pull the clutch lever 15, and the door lock cannot be unlocked.

For a side door lock provided with an outer locking rod 23 and also called an outer safety rod, such as a side door lock of a cab, the outer locking rod 23 is operated to rotate clockwise, the outer safety switching rod 19 is matched and driven to rotate anticlockwise, the safety rod 20 pushes the clutch rod 15 to rotate anticlockwise, the clutch rod 15 and the first switching plate 18 form a disengaging state, at the moment, the outer pulling plate cannot toggle the first switching plate 18 and drive the pawl pin 3 and the pawl 2 to rotate through the release plate 17, the clamping plate 6 cannot rotate under the acting force of the clamping plate torsion spring 11, and the door lock cannot be unlocked, namely the door cannot be opened.

The safety switching rod 19 also has an anti-misoperation lock structure, namely has the anti-misoperation lock function, namely has the function of pushing the clamping plate 6 to rotate anticlockwise when the vehicle door of the cab is closed, driving the upward protruding block of the clamping plate 6 to rotate to the position where the downward protruding block of the outer safety switching rod 19 cannot be stirred, stirring the outer safety switching rod 19 at the moment, driving the safety rod 20 to move leftwards, and further pushing the clutch rod 15 to ensure safety. When the door of the cab is opened, the clamping plate 6 rotates clockwise to drive the upward protruding block of the clamping plate 6 to rotate to the position where the downward protruding block of the outer safety switching rod 19 abuts against, and at this time, the downward protruding block of the outer safety switching rod 19 cannot be stirred due to the abutment of the upward protruding block of the clamping plate 6, that is, cannot be used for safety. That is, the door of the cab cannot be secured in an opened state, and the door can be opened all the time, thereby avoiding the occurrence of a key lock in the vehicle.

For the side door lock provided with the inner locking rod 33 and also called as an inner safety rod, the inner safety rod 33 is operated to rotate anticlockwise to drive the worm wheel 28 to rotate clockwise, the worm wheel 28 drives the safety rod 20 to slide leftwards or move, and the first conversion plate 18 cannot be driven to rotate through the release plate 17 to drive the detent pin 3 and the detent 2, so that the side door lock unlocking function is achieved. The locking function and effect can be achieved.

For the side door lock provided with the emergency lock rod 12, under the condition of power failure such as power failure of an automobile or power failure of a remote control battery, a key can be used for driving a lock core connecting rod from the inside of the automobile, the emergency lock rod 12 is operated to rotate clockwise, the safety rod 20 is driven to move leftwards, and the function of safety is realized, namely, the door can be locked even if power failure occurs when people need to leave.

Referring to fig. 12a and 12b, in the side door lock provided with the child lock member, in the above-described unsecured state, if the second inner pull plate 39 is pulled to rotate in the clockwise direction, the second switch plate 38 pushes the first switch plate 18 to rotate, and the side door can be unlocked to open. The locking of the child lock member can also be called as the locking of the child lock member, namely, the child lock deflector knob 36 is shifted clockwise, the deflector column driving the inner opening clutch lever 37 slides to a position where the deflector rod 51 of the second inner pulling plate cannot be shifted, namely, the second inner pulling plate 39 is pulled to rotate clockwise around the shaft, and the second conversion plate 38 cannot be shifted, so that the detent pin 3 and the detent 2 cannot be driven to rotate through the first conversion plate 18 and the release plate 17, namely, the clamping plate 6 cannot rotate under the acting force of the clamping plate torsion spring 11, and the side door lock cannot be unlocked, namely, the vehicle door cannot be opened, as shown in the state 12 b. Unlocking the child lock member can also be called unlocking the child lock member, namely, pulling the child lock deflector knob 36 anticlockwise, driving the deflector column of the inner opening clutch lever 37 to slide to a position where the deflector rod 51 of the second inner pulling plate can be pulled, namely, pulling the second inner pulling plate 39 to rotate anticlockwise around the shaft, pulling the second conversion plate 38, driving the pawl pin 3 and the pawl 2 to rotate through the first conversion plate 18 and the release plate 17, and when the pawl 2 rotates to a state without limiting the clamping plate 6, namely, is separated from the clamping plate 6, the clamping plate 6 rotates under the acting force of the clamping plate torsion spring 11 to unlock the side door lock, namely, the door is opened, as shown by 12 a.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should 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 actuator comprises:

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 is characterized in that: the micro switch includes a first micro switch (25a), the contact of the first micro switch (25a) is against one side of the linearly movable bumper (20), and is used to output the electrical signal of the moving state of the bumper (20) through the conductive sheet and the vehicle body wiring harness to inform the driver.

4. The automobile side door lock according to claim 2 is characterized in that: the actuator also includes an inner locking rod (33), the inner locking rod (33) 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) to form a toggle connection, and the other end is used to connect with the inner handle.

5. The automobile side door lock according to claim 2 is characterized in that: the lock body assembly also includes an external locking rod (23) and an external safety conversion rod (19); the external locking rod (23) is sleeved on the fourth axis (57) of the shell and rotates around the fourth axis (57) of the shell, one end of the external locking rod (23) is used to be hinged with the lock core connecting rod on the vehicle door, and the other end of the external locking rod (23) is connected to the external safety conversion rod (19) by toggling, the external safety conversion rod (19) is sleeved on the fifth axis (47) of the shell and rotates around the fifth axis (47) of the shell, 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 clamping plate (6) to prevent accidental locking.

6. The automobile side door lock according to claim 2 is characterized in that: the lock body assembly also includes an emergency lock rod (12), the emergency lock rod (12) 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 one-way 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 the outer end of the emergency lock rod (12) is provided with a groove (56) for a key to be inserted and rotated for one-way safety.

7. The automobile side door lock according to claim 2 is characterized in that: the actuator assembly also includes a child lock component, the child lock component includes: a twist 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 twist lever (36) slidingly 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 twist lever (36) is hinged to one end of an inner opening clutch rod (37), the lever column (49) on the other end of the inner opening clutch rod (37) slidingly engaged in a vertical waist-shaped through hole (50) at one end of the second conversion plate (38), and the first The second conversion plate (38) is hinged on the fourth axis of the front cover, and the other end of the second conversion plate (38) is used for being connected to the first conversion plate (18) by being swivel. The fourth axis of the front cover is also hinged with a second inner pull plate (39). The second inner pull plate (39) is used for, under the pull of an external force, the second inner pull plate (39) to push the quick release (51) 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 pull 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 is characterized in that: a straight-line notch is provided in the radial middle of the free end of the guide column (52) for applying force to make it radially open outward, and a second radial protrusion (54) is provided on the outer circumferential surface of the free end of the guide column (52) 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 is 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).