Front door lock for a vehicle

Abstract

The application discloses a front door lock for a car, which comprises a lock body and a shell, a ratchet shaft and a pawl shaft are arranged on the lock body, a ratchet, a ratchet return spring are arranged on the ratchet shaft from bottom to top, a pawl, a pawl return spring, an outer opening rocker arm and an outer opening return spring are arranged on the pawl shaft, the ratchet and the pawl are arranged on the lower side of the lock body, a locking mechanism is arranged on the upper side of the lock body, a motor, a locking connecting rod, an inner opening rocker arm and an inner opening linkage arm are arranged on the shell, a gear is sleeved on one end of the motor, the gear is connected with the locking connecting rod, an inner locking linkage rocker arm, a ratchet signal rocker arm, a lock core rocker arm, a lock core shaft and an outer locking rocker arm, an opening rocker arm is sleeved on the outer side of the outer opening linkage arm, an outer opening push rod is sleeved on the outer opening rocker arm, an outer locking pull rod is sleeved on the outer locking rocker arm and an inner opening pull cable is sleeved on the inner opening rocker arm. The application has novel and reasonable structure, compact installation, reduced number of transmission parts, improved transmission efficiency and reduced production cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile door lock, more particularly, to a front door lock for automobile. BACKGROUND

[0002] The existing door lock is basically a split structure, and the circuit part and the mechanical part are separated. The locking or unlocking is realized by the linkage transmission between the pull rod of the electric actuator and the mechanical part of the lock body. If the relative installation position of the actuator and the lock body deviates or the parts are deformed, a series of unstable performances such as feedback signals will be caused, which affects the use of users. The lock body of the present application is an integrated lock body, and the actuator and the lock body are integrated and transmitted by internal gear and rack, which can effectively avoid the above problems. The integrated lock body is the product of improvement of the split lock body and is the development trend of the lock body at home and abroad. SUMMARY

[0003] The purpose of the present application is to provide a front door lock for automobile, which has novel and reasonable structure, compact installation, reduces the number of transmission parts, improves the transmission efficiency and reduces the production cost.

[0004] The technical scheme adopted by the present application to solve the technical problem is: a front door lock for automobile, comprising: a lock body, a shell, a ratchet shaft and a pawl shaft penetrating the lock body, a ratchet and a ratchet return spring are arranged on the ratchet shaft from bottom to top, a pawl and a pawl return spring are arranged on the pawl shaft, a pawl linkage shaft is riveted and fixed on the pawl, a pawl linkage shaft sleeve is tightly sleeved on the pawl linkage shaft, the pawl linkage shaft sleeve has the effect of preventing the impact on the lock body during the movement of the pawl, the ratchet and the pawl are arranged on the lower surface of the lock body, the pawl is fixed with the pawl return spring and the bracket of the lock body; the ratchet is engaged with the pawl, the ratchet has a lock catch opening capable of engaging with the door lock catch, a ratchet return spring is further fixed between the ratchet and the lock body; a lock catch shock pad is fixedly sleeved on the lock body, and the lock catch shock pad is fixedly sleeved in the middle part of the lock body, the lock catch shock pad has the effect of preventing the impact of the door on the lock body when the door is closed;

[0005] An outer opening rocker arm is plate-shaped and the edge thereof is folded upward to form a horizontal end. The outer opening rocker arm is movably sleeved on the mounting shaft above the lock body. An outer opening return spring is sleeved between the outer opening rocker arm and the lock body. An outer opening push rod buckle is sleeved on the horizontal end of the outer opening rocker arm. An outer opening push rod is sleeved on the outer opening push rod buckle.

[0006] The opening rocker arm is an irregular structure, the opening rocker arm is movably sleeved on the mounting shaft above the lock body and the outer opening rocker arm, the sliding arm is mounted on the opening rocker arm, the sliding arm and the opening rocker arm are provided with the sliding arm return spring and the outer opening rocker arm bushing, the outer opening rocker arm is in abutment with the sliding arm, the sliding arm is in abutment with the opening rocker arm, the opening rocker arm can rotate on the mounting shaft of the lock body, and can rotate with the outer opening rocker arm around the mounting shaft of the lock body and in the rotating process, is in abututment with the ratchet pawl linkage shaft sleeve on the ratchet pawl linkage shaft.

[0007] The ratchet and pawl are arranged as follows: when the outer opening rocker arm rotates to push the sliding arm to drive the opening rocker arm to push the ratchet pawl linkage shaft to rotate, the ratchet pawl linkage shaft drives the ratchet pawl to rotate, the ratchet pawl is separated from the ratchet wheel, the ratchet wheel can rotate around the ratchet wheel shaft, so that the lock catch is separated from the lock catch opening, and the vehicle door is opened outward.

[0008] Preferably, the housing is sleeved with an inner opening rocker arm, an inner opening return spring and an inner opening linkage arm; the inner opening rocker arm is triangular, one end of the inner opening rocker arm is connected with an inner opening cable, and the other end of the inner opening rocker arm is in abutment with the inner opening linkage arm downward; the inner opening linkage arm is in abutment with the outer opening rocker arm.

[0009] Preferably, the housing is sleeved with an inner opening rocker arm, an inner opening return spring and an inner opening linkage arm; the inner opening rocker arm is triangular, one end of the inner opening rocker arm is connected with an inner opening cable, and the other end of the inner opening rocker arm is in abutment with the inner opening linkage arm downward; the inner opening linkage arm is in abutment with the outer opening rocker arm.

[0010] Preferably, the housing is sleeved with an inner opening rocker arm, an inner opening return spring and an inner opening linkage arm; the inner opening rocker arm is triangular, one end of the inner opening rocker arm is connected with an inner opening cable, and the other end of the inner opening rocker arm is in abutment with the inner opening linkage arm downward; the inner opening linkage arm is in abutment with the outer opening rocker arm.

[0011] Preferably, the housing is sleeved with an inner opening rocker arm, an inner opening return spring and an inner opening linkage arm; the inner opening rocker arm is triangular, one end of the inner opening rocker arm is connected with an inner opening cable, and the other end of the inner opening rocker arm is in abutment with the inner opening linkage arm downward; the inner opening linkage arm is in abutment with the outer opening rocker arm.

[0012] Preferably, the housing is sleeved with an inner opening rocker arm, an inner opening return spring and an inner opening linkage arm; the inner opening rocker arm is triangular, one end of the inner opening rocker arm is connected with an inner opening cable, and the other end of the inner opening rocker arm is in abutment with the inner opening linkage arm downward; the inner opening linkage arm is in abutment with the outer opening rocker arm.

[0013] The connector is arranged on the housing.

[0014] The motor is arranged on the housing and the connector.

[0015] One end of the gear is sleeved on the rotating shaft of the motor, and the gear is driven to rotate by the motor.

[0016] The locking link has a straight rack at one end and is engaged with the gear, and the locking link is sleeved on the housing.

[0017] Preferably, the shell is also sleeved with an inner locking rocker; the inner locking rocker is driven to rotate by the inner locking cable, and the lower part of the inner locking rocker is in contact with the locking connecting rod, which is in contact with or separated from the sliding arm under the driving of the inner locking rocker.

[0018] Preferably, the round hole of the ratchet signal rocker is sleeved on the lock body mounting shaft, the lower long shaft of the ratchet signal rocker penetrates the lock body, the lower long shaft of the ratchet signal rocker is a vertical arc surface and is in one-way contact with the side surface of the ratchet, and the upper limiting angle of the ratchet signal rocker is engaged with the clamping table of the locking connecting rod; when the ratchet is separated from the pawl, the ratchet signal rocker rotates, so that one end of the ratchet signal rocker is separated from the clamping position of the locking connecting rod, so that the locking connecting rod can slide freely left and right, realizing that the door lock can be in an unlocked state, and when one end of the ratchet signal rocker is in contact with the locking connecting rod, the door lock is locked, and when they are separated, the door lock is unlocked.

[0019] Preferably, the lower part of the shell is sleeved with a lock cylinder rocker, the lower part of the locking connecting rod is in contact with the lock cylinder rocker, and the lock cylinder rocker is arranged to push the locking connecting rod to slide when it rotates. The round hole of the lock cylinder rocker is sleeved on the lock cylinder shaft, the lock cylinder shaft is sleeved with an outer locking rocker, and the outer locking cable is clamped on the outer locking rocker through the outer locking joint.

[0020] Preferably, the shell is L-shaped, the horizontal part of the shell is arranged above the lock body, and the vertical part is arranged perpendicularly to the lock body; the shell and the lock body are fixedly connected through ST5.0* internal hexagonal flower head disc head self-tapping screws and ST.9*6 flower head disc head self-tapping screws and ST.9*3 internal hexagonal flower head self-tapping screws.

[0021] The shell is provided with a shell cover and is fastened through ST.9*6 flower head disc head self-tapping screws and ST.9*6.5 flower head self-tapping screws.

[0022] Preferably, the shell is L-shaped, the horizontal part of the shell is arranged above the lock body, and the vertical part is arranged perpendicularly to the lock body; the shell and the lock body are fixedly connected through ST5.0* internal hexagonal flower head disc head self-tapping screws and ST.9*6 flower head disc head self-tapping screws and ST.9*3 internal hexagonal flower head self-tapping screws.

[0023] The locking signal switch is arranged on the middle extension piece of the connector, and the end of the locking connecting rod is in contact with the locking signal switch spring to trigger the locking signal switch; the locking signal switch is arranged to output a signal when the locking connecting rod is in contact with or away from the locking signal switch spring when the locking connecting rod slides; and the upper end of one side of the locking connecting rod is in contact with the locking signal switch spring to output a locking signal.

[0024] The door lamp signal switch is arranged on the lower extension piece of the connector, and the arc surface of the ratchet signal rocker is in contact with the door lamp signal switch spring to trigger the door lamp signal switch; the door lamp signal switch is arranged to output a signal when the ratchet is separated from the lock catch, and the outer side of the ratchet pushes the end of the ratchet signal rocker to contact the door lamp signal switch spring.

[0025] The present application at least comprises the following advantages:

[0026] 1、The present application can realize the unlocking and locking functions through two ways, respectively, through rotating the car key to open the lock cylinder, electric unlocking and locking, that is, through controlling the motor, both ways are finally transmitted to the same part, that is, the locking connecting rod, so that the whole car door lock structure layout is compact, each part is efficiently utilized, and the transmission efficiency of the whole car door lock is high, and the control performance is good.

[0027] 2、The present application also has the anti-mislock function, in the state that the door is opened, the locking function is in the invalid state, only when the door is closed, the locking can be realized, the safety performance is higher, and the actual operation is more humanized.

[0028] Other advantages, objects and features of the present application will be partly embodied through the following description, and partly understood by those skilled in the art through research and practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is an explosion schematic view of the car door lock of the present application;

[0030] Figure 2 It is a door lock body subassembly of the present application;

[0031] Figure 3 It is a door lock shell subassembly of the present application;

[0032] Figure 4a It is a door lock inside opening mechanism schematic view of the present application;

[0033] Figure 4b It is a door lock inside opening mechanism schematic view of the present application;

[0034] Figure 5 It is a door lock outside opening mechanism schematic view of the present application;

[0035] Figure 6a It is a door lock ratchet and pawl assembly schematic view of the present application;

[0036] Figure 6b It is a door lock ratchet and pawl full-lock meshing II stop schematic view of the present application;

[0037] Figure 6C It is a door lock ratchet and pawl half-lock meshing I stop schematic view of the present application;

[0038] Figure 6d It is a door lock ratchet and pawl mesh opening state schematic view of the present application;

[0039] Figure 6e It is a door lock ratchet A and B surface schematic view of the present application;

[0040] Figure 6fThe C surface of the door lock pawl of the present application is shown in the figure;

[0041] Figure 7A The main view of the inner locking and locking mechanism of the door lock of the present application is shown in the figure;

[0042] Figure 7B The bottom view of the inner locking and locking mechanism of the door lock of the present application is shown in the figure;

[0043] Figure 7C The main view of the inner locking and unlocking mechanism of the door lock of the present application is shown in the figure;

[0044] Figure 7D The bottom view of the inner locking and unlocking mechanism of the door lock of the present application is shown in the figure;

[0045] Figure 8A The schematic diagram of the electric locking mechanism of the door lock of the present application is shown in the figure;

[0046] Figure 8B The bottom view of the electric locking mechanism of the door lock of the present application is shown in the figure;

[0047] Figure 8C The schematic diagram of the electric unlocking mechanism of the door lock of the present application is shown in the figure;

[0048] Figure 8D The bottom view of the electric unlocking mechanism of the door lock of the present application is shown in the figure;

[0049] Figure 9A The main view of the outer locking and locking mechanism of the door lock of the present application is shown in the figure;

[0050] Figure 9B The bottom view of the outer locking and locking mechanism of the door lock of the present application is shown in the figure;

[0051] Figure 9C The main view of the outer locking and unlocking mechanism of the door lock of the present application is shown in the figure;

[0052] Figure 9D The bottom view of the outer locking and unlocking mechanism of the door lock of the present application is shown in the figure;

[0053] Figure 10A The working state of the anti-mislock structure of the door lock of the present application is shown in the figure;

[0054] Figure 10B The non-working state of the anti-mislock structure of the door lock of the present application is shown in the figure;

[0055] Figure 11A The unlocking signal feedback of the door lock of the present application is shown in the figure;

[0056] Figure 11B The locking signal feedback of the door lock of the present application is shown in the figure;

[0057] Figure 12A The locking signal feedback of the door lock of the present application is shown in the figure;

[0058] Figure 12BThe door lock opening signal feedback schematic diagram of the present application.

[0059] Reference signs: 1, lock body, 2, shell, 3, cover plate, 4, connecting plate, 5, connector, 6, shell cover, 7, ratchet wheel, 8, pawl, 9, pawl damping pad, 10, ratchet wheel shaft, 11, pawl shaft, 12, ST2.9*6.5 flower pattern countersunk self-tapping screw, 13, ratchet wheel damping pad, 14, pawl linkage shaft, 15, pawl linkage shaft sleeve, 16, filling block, 17, sponge pad, 18, ratchet wheel signal rocker arm return spring, 19, ratchet wheel signal rocker arm, 20, ratchet wheel return spring, 21, pawl return spring, 22, ST2.9*16 flower pattern disc head self-tapping screw, 23, ST2.9*13 internal hexagonal flower countersunk head self-tapping screw, 24, ST5.0*27 internal hexagonal flower pattern disc head self-tapping screw with pad, 25, outer opening return spring, 26, outer opening rocker arm, 27, opening rocker arm, 28, outer opening rocker arm bushing, 29, sliding arm return spring, 30, inner opening linkage shaft, 31, inner opening linkage arm, 32, inner opening rocker arm, 33, inner opening cable, 34, inner lock stop cable, 35, outer opening push rod, 36, outer opening connector, 37, motor, 38, gear, 39, lock cylinder rocker arm, 40, door light signal switch, 41, lock cylinder rocker arm return spring, 42, lock stop signal switch, 43, lock cylinder shaft, 44, outer lock stop rocker arm, 45, outer lock stop pull rod, 46, inner lock stop rocker arm, 47, lock stop connecting rod, 48, No.1 circuit board, 49, No.2 circuit board, 50, sliding arm, 51, lock catch damping pad, 52 lock stop connecting rod return spring, 53, inner opening linkage arm return spring, 54 inner opening return spring, 55, outer lock stop connector, 56, lock body subassembly, 57 shell subassembly. DETAILED DESCRIPTION

[0060] The present application will be described in detail below with reference to the drawings. Those skilled in the art will be able to implement the present application based on these descriptions. Before the present application is described in detail with reference to the drawings, it should be specifically pointed out that the technical solutions and technical features provided in each part of the following description, including the description, can be combined with each other without conflict.

[0061] In addition, the embodiments of the present application involved in the following description are generally only a part of the embodiments of the present application, not all the embodiments. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments in the present application without creative labor should be within the scope of protection of the present application.

[0062] The present application will be described in detail below with reference to the drawings. Those skilled in the art will be able to implement the present application based on these descriptions. Before the present application is described in detail with reference to the drawings, it should be specifically pointed out that the technical solutions and technical features provided in each part of the following description, including the description, can be combined with each other without conflict.

[0063] As Figures 1-3As shown, a front door lock for a car mainly comprises a lock body subassembly 56 and a housing subassembly 57. The lock body subassembly 56 is composed of the following components: a lock body 1, a ratchet wheel 7, a pawl 8, a pawl shaft 11, a pawl linkage shaft 14, a cover plate 3, a ratchet wheel shaft 10, a lock catch damping pad 51, a pawl damping pad 9, a ratchet wheel signal rocker arm 19, a ratchet wheel signal rocker arm return spring 18, a connecting plate 4, a ratchet wheel return spring 20, a pawl return spring 21, an outside opening return spring 25, an outside opening rocker arm 26, an opening rocker arm 27, a sliding arm 50, a sliding arm return spring 29, an outside opening rocker arm bushing 28, and the like.

[0064] The housing subassembly is composed of the following components: a housing 2, an outside locking rocker arm 44, a lock core shaft 43, a lock core rocker arm 39, a door light signal switch 40, a lock core rocker arm return spring 41, a locking signal switch 42, a No. 1 circuit board 48, a No. 2 circuit board 49, a connector 5, an outside opening connector 36, a motor 37, a pawl damping pad 9, an inside locking rocker arm 46, a locking connecting rod 47, an inside opening linkage arm return spring 53, an inside opening rocker arm 32, an inside opening linkage arm 31, an inside opening linkage shaft 30, a housing cover 6, and the like.

[0065] Specifically, the front door lock for a car comprises: a lock body 1, which is a main structure fastener of the door lock; a cover plate 3, which is fixedly connected with a door, and is embedded on the lock body 1, and two ends of a ratchet wheel shaft 10 and a pawl shaft 11 vertically penetrating through the cover plate 3 protrude out of the lock body 1; the ratchet wheel shaft 10 is provided with, from bottom to top, a ratchet wheel 7 and a ratchet wheel return spring 20, and the pawl shaft 11 is provided with a pawl 8 and a pawl return spring 21; the ratchet wheel 7 and the pawl 8 are arranged below the lock body 1, and from left to right above the lock body 1 are arranged an outside opening rocker arm 26, an opening rocker arm 27, a sliding arm 50, an outside opening return spring 25, the pawl return spring 21, the ratchet wheel return spring 20, a connecting plate 4, a ratchet wheel signal rocker arm 19, a ratchet wheel signal rocker arm return spring, and the like opening and unlocking mechanism; the sliding arm 50 and the opening rocker arm 27 are provided with a sliding arm return spring 29 and an outside opening rocker arm bushing 28; the outside opening rocker arm bushing is arranged on a mounting column of the lock body, the outside opening rocker arm is sleeved on the outside opening rocker arm bushing, and the outside opening rocker arm bushing is used for opening the door lock by a connecting rod of a door handle outside. The pawl 8 is sleeved with a pawl linkage shaft 14, which is fixed by riveting, and the pawl linkage shaft is tightly sleeved with a pawl linkage shaft sleeve, which is used for damping and noise reduction. The outside opening rocker arm 26 abuts against the sliding arm 50, the sliding arm 50 abuts against the opening rocker arm 27, and the opening rocker arm 27 abuts against the pawl linkage shaft sleeve 15 tightly sleeved on the pawl linkage shaft 14. The ratchet wheel signal rocker arm 19 and the ratchet wheel signal rocker arm return spring 18 are sleeved on the lock body 1, the ratchet wheel signal rocker arm moves to trigger a door light signal switch 40 and lock a locking connecting rod 47.

[0066] The shell 2 is L-shaped, and the inner opening rocker arm 32, the inner opening linkage arm 31 and the inner opening return spring 54 are sleeved on the shell. The inner opening rocker arm 32 is triangular, one end of which is connected with the inner opening pull cable 33, and one end thereof is downwardly connected with the inner opening linkage arm through the inner opening linkage shaft 30. The inner locking rocker arm 46 is further arranged on the shell, and the lower part of the inner locking rocker arm 46 abuts against the locking connecting rod 47. The locking connecting rod 47 is in mesh with the gear 38, and the gear is tightly sleeved on the shaft of the motor 37. The lower part of the locking connecting rod 47 abuts against the lock core rocker arm 39, the lock core rocker arm 39 is sleeved on the lock core shaft 43, the lock core shaft is clamped on the outer locking rocker arm, and the locking connecting rod return spring 52 is arranged on the shell mounting corner and used for resetting the locking connecting rod. The shell cover 6 is arranged on the shell 2 and is fastened and connected with the shell 2 through the ST2.9*16 flower-shaped head self-tapping screw 22 and the ST2.9*6.5 flower-shaped countersunk head self-tapping screw 12. The shell and the lock body are fixedly connected through the ST5.0*27 inner hexagonal flower-shaped head self-tapping screw with a washer 24, the ST2.9*16 flower-shaped head self-tapping screw and the ST2.9*13 inner hexagonal countersunk head self-tapping screw 23. The No.1 circuit board 48 and the No.2 circuit board 49 are further arranged in the shell. The filler 16 and the sponge pad 17 are arranged on the lock body 1 and used for filling the gap between the door lock and the door panel.

[0067] Figure 4a 、 Figure 4b As shown in the figure, the inner opening function of the door lock is realized. When the inner locking of the door lock is in the unlocking state, the inner opening pull cable 33 connected with the inner handle assembly of the door is pulled, the inner opening rocker arm 32 is driven to rotate by the inner opening pull cable 33, the inner opening linkage arm 31 is driven to rotate by the inner opening rocker arm 32, the outer opening rocker arm 26 is pushed by the inner opening linkage arm 31, the sliding arm 50 is pushed by the outer opening rocker arm 26, the opening rocker arm 27 is pushed by the sliding arm 50, the pawl linkage shaft is pushed by the opening rocker arm 27, so that the pawl 8 is rotated around the pawl shaft 11, so that the engaged ratchet wheel 7 is released, the ratchet wheel 7 is reset by the ratchet wheel return spring 20, so that the opening state is achieved, and the inner opening of the door lock is realized. The inner opening linkage arm return spring 53 is arranged on the inner opening linkage arm 31 and used for resetting the movement of the inner opening linkage arm 31.

[0068] After the door is closed, the ratchet wheel 7 is rotated around the ratchet wheel shaft 10 by the lock catch, the pawl 8 is reset by the pawl return spring 21, so that the engagement is generated, and the door is firmly and reliably in the closed state.

[0069] Figure 5As shown, the outer opening function of the door lock is realized: when the outer locking of the door lock is in the unlocked state, the outer opening push rod 35 connected with the outer handle is pulled, the outer opening joint 36 is driven by the outer opening pull rod 35, the outer opening joint 36 is connected with the outer opening rocker arm 26, thereby driving the outer opening rocker arm 26 to rotate, at the same time, the outer opening rocker arm 26 pushes the sliding arm 50, the sliding arm 50 pushes the opening rocker arm 27, the opening rocker arm 27 pushes the pawl linkage shaft, thereby making the pawl 8 rotate around the pawl shaft 11, thereby making the engaged ratchet wheel 7 be released, the ratchet wheel 7 is reset by the ratchet wheel return spring 20, thereby achieving the opening state, realizing the outer opening of the door lock and achieving the door opening.

[0070] When the outer opening push rod 35 connected with the outer handle is released, the outer opening rocker arm 26 is reset under the action of the outer opening return spring 25.

[0071] After the car door is closed, the ratchet wheel 7 rotates around the ratchet wheel shaft 10 by the lock catch, the pawl 8 is reset by the pawl return spring 20, thereby generating engagement, making the car door firmly and reliably in the closed state.

[0072] As shown in the drawings, Figure 6a The cover plate 3 is sleeved on the lower end of the ratchet wheel shaft 10 and the pawl shaft 11 and is fixed by riveting, and the cover plate 3 is embedded into the bottom of the lock body 1 with the ratchet wheel shaft 10 and the pawl shaft 11 penetrating through the lock body 1; the ratchet wheel return spring 20 sleeved on the ratchet wheel shaft 10 is arranged on the upper side of the lock body 1; the pawl return spring 21 sleeved on the pawl shaft 11 is arranged on the upper side of the lock body 1; the connecting plate 4 is arranged on the upper side of the lock body 1 and is sleeved on the upper end of the pawl shaft 11 and the ratchet wheel shaft 10 and is fastened by riveting; the lock body 1 is also sleeved with the pawl damping pad 9; the lock body 1 is also arranged with the lock catch damping pad 51 and the ratchet wheel damping pad 13.

[0073] In the above embodiment, Figure 6C As shown in the drawings, the half-lock state of the door lock is realized: when the lock catch pushes the ratchet wheel 7 to rotate around the ratchet wheel shaft 10, the pawl 8 keeps in surface contact with the ratchet wheel 7 under the action of the pawl return spring 21, when the lock catch stops pushing the ratchet wheel 7 to rotate, the pawl 8 is reset under the action of the pawl return spring 21, so that the A surface of the ratchet wheel 7 is in contact with the C surface of the pawl 8, at this time, the ratchet wheel 7 is in the half-lock state, and the door lock is in the I block.

[0074] As shown in the drawings, Figure 6b The full-lock state of the door lock is realized: when the ratchet wheel 7 is in the half-lock state, the lock catch continues to push the ratchet wheel 7 to rotate around the ratchet wheel shaft 10 to the maximum position, the pawl 8 is reset under the action of the pawl return spring 21, so that the B surface of the ratchet wheel 7 is in contact with the C surface of the pawl 8, at this time, the ratchet wheel 7 is in the full-lock state, and the door lock is in the II block.

[0075] As shown in the drawings, Figure 6dAs shown, the door lock is opened when the ratchet 7 is in the fully locked state. When the ratchet 7 is in the fully locked state, it pushes the pawl linkage shaft 14 to drive the pawl 8 to rotate around the pawl shaft 11. The C surface of the pawl 8 separates from the B surface of the ratchet 7. The ratchet 7 is reset under the action of the ratchet return spring 20, so that the ratchet 7 is in the open state and the door lock is opened.

[0076] Figure 7A , 7B As shown, the mechanical door lock achieves its internal locking function: When the internal lock is in the unlocked state, rotating the internal locking button on the internal handle pushes the internal locking cable 34, which in turn drives the internal locking rocker arm 46 to rotate. This, in turn, causes the locking linkage 47 to slide, and the locking linkage 47 pushes the sliding arm 50 to the locked position (e.g., ...). Figure 7A As shown), this prevents the outward-opening rocker arm 26 from contacting the sliding arm 50 when it is turned on (as shown). Figure 7B As shown, pushing the rocker arm 27 triggers the pawl linkage shaft, causing the pawl to open the door lock and lock the door.

[0077] Figure 7C , 7D As shown, the door lock's mechanical internal locking and unlocking functions are implemented as follows: When the door lock is in the locked state, pulling the internal locking cable 34 via the internal locking button on the internal handle causes the internal locking cable 34 to rotate the internal locking rocker arm 46, thereby causing the locking linkage 47 to slide. The locking linkage 47 moves from contact with the sliding arm 50 to separation, and the sliding arm 50 returns to the unlocked position under the action of the sliding arm return spring (as shown). Figure 7C As shown), this allows the outward-opening rocker arm 26 to contact the sliding arm 50 when it opens and rotates (as shown). Figure 7D As shown, this pushes the rocker arm 27 to trigger the pawl linkage shaft, causing the pawl to open the door lock and unlock it.

[0078] 1. Locked state, meaning that mechanical parts cannot apply force to the pawl and the state of the ratchet and pawl cannot be changed.

[0079] 2. Unlocked state, meaning the mechanical parts can apply force to the pawl, thus changing the state of the ratchet and pawl.

[0080] Figure 8A , 8B As shown, the electric internal locking function of the door lock is achieved as follows: When the door lock is in the unlocked state, the motor 37 is energized and rotates, driving the gear 38 to rotate. The locking linkage 47, which meshes with the gear 38, slides, pushing the sliding arm 50 to the locked position (e.g., ...). Figure 8A As shown), this prevents the outward-opening rocker arm 26 from contacting the sliding arm 50 when it is turned on (as shown). Figure 8B (As shown) Pushing the rocker arm 27 triggers the pawl linkage shaft, which in turn drives the pawl to open the door lock, thus achieving electric locking of the door lock.

[0081] likeFigure 8C , 8D As shown, the door lock's electric unlocking function is achieved as follows: When the door lock is in the locked state, the motor 37 is energized and rotates, driving the gear 38 to rotate. The locking link 47, which meshes with the gear 38, slides, moving from contact with the sliding arm 50 to separation. The sliding arm 50, driven by the sliding arm return spring 29, returns to the unlocked position (as shown). Figure 8C As shown), the locking linkage 47 moves from contact with the sliding arm 50 to separation, and the sliding arm 50 returns to the unlocked position under the action of the sliding arm return spring 29 (as shown). Figure 8D As shown, this pushes the rocker arm 27 to activate the pawl linkage shaft, which in turn drives the pawl to unlock the door, thus achieving electric unlocking of the door lock.

[0082] Figure 9A , 9B As shown, the door lock's external locking function is achieved as follows: the external locking lever 45 is snapped onto the external locking rocker arm 44 via the external locking connector 55. When the door lock is in the unlocked state, when the lock cylinder assembly is turned with the key, the external locking lever 45 pulls the external locking rocker arm 44, thereby driving the lock cylinder shaft 43 to rotate. The rotation of the lock cylinder shaft 43 drives the lock cylinder rocker arm 39 to rotate, thereby pushing the locking link 47 to slide. The locking link 47 pushes the sliding arm 50 to the locked position (e.g., ...). Figure 9A As shown), this prevents the outward-opening rocker arm 26 from contacting the sliding arm 50 when it is turned on (as shown). Figure 9B (As shown) Pushing the opening rocker arm 27 triggers the pawl linkage shaft, which in turn drives the pawl to open the door lock and lock the door. The lock cylinder rocker arm 39 is equipped with a lock cylinder rocker arm return spring 41, which is used to reset the movement of the lock cylinder rocker arm.

[0083] Figure 9C , 9D As shown, the door lock unlocking function is achieved as follows: When the door lock is in the locked state, when the lock cylinder assembly is turned by the key, the outer locking lever 45 pushes the outer locking rocker arm 44, thereby driving the lock cylinder shaft 43 to rotate. The rotation of the lock cylinder shaft 43 drives the lock cylinder rocker arm 39 to rotate, thereby pushing the locking link 47 to slide. The locking link 47 moves from contact with the sliding arm 50 to separation. The sliding arm 50 is then reset to the unlocked position by the sliding arm return spring (as shown). Figure 9C As shown), this allows the outward-opening rocker arm 26 to contact the sliding arm 50 when it opens and rotates (as shown). Figure 9D As shown, this pushes the rocker arm 27 to trigger the pawl linkage shaft, causing the pawl to open the door lock and unlock it.

[0084] Figure 10A , 10B The ratchet signal rocker arm 19 shown is sleeved on the lock body 1. The lower long shaft of the ratchet signal rocker arm 19 passes through the lock body 1 and has one-way contact with the side of the ratchet 7.

[0085] In this embodiment: asFigure 10B As shown, when the door lock is in a half-lock or full-lock state, the lower long axis of the ratchet signal rocker arm 19 abuts against the side of the ratchet 7, pushing the ratchet signal rocker arm 19 to rotate, thereby causing the upper limit angle of the ratchet signal rocker arm 19 to disengage from the locking link 47. The locking link 47 can slide left and right. At this time, the door lock is in an unlockable / lockable state, and the door lock locking or unlocking function is effective.

[0086] like Figure 10A As shown, when the door lock is in the open state, the lower long axis of the ratchet signal rocker arm 19 is separated from the side of the ratchet 7. The ratchet signal rocker arm 19 rotates under the return force of the pawl signal rocker arm return spring 18, and the upper limit angle hooks the locking link 47 to lock it, so that the locking link 47 cannot slide. At this time, the door lock is in an unlockable / unlockable state, realizing the door lock's anti-mislocking function.

[0087] Figure 11A , 11B As shown, a connector 5 is provided on the vertical surface of the housing 2 from top to bottom. The locking signal switch 42 is provided on the locking signal switch mounting base of the connector 5. The spring of the locking signal switch 42 is in contact with or separated from the cylindrical push angle of the locking link 47.

[0088] In this embodiment: Figure 11A As shown, when the locking linkage 47 is in the unlocked state, the cylindrical push angle of the locking linkage 47 presses the spring of the locking signal switch 42, and the door lock gives an unlocking signal feedback.

[0089] Figure 11B As shown, when the locking link 47 is in the locked state, the cylindrical push angle of the locking link 47 separates from the spring of the locking signal switch 42, the spring of the locking signal switch 42 resets under its own action, and the door lock gives a locking signal feedback.

[0090] Figure 12A , 12B As shown, the ratchet signal rocker arm 19 is sleeved on the lock body 1. The lower part of the ratchet signal rocker arm 19 penetrates the lock body 1 and contacts the ratchet 7. The front arc-shaped truncated cone of the ratchet signal rocker arm 19 has one-way contact or separation with the spring of the door light signal switch 40. The ratchet signal rocker arm return spring 20 is also sleeved on the ratchet signal rocker arm 19. One end of the ratchet signal rocker arm return spring 20 is locked on the ratchet signal rocker arm 1, and the other end of the ratchet signal rocker arm return spring 20 is locked on the lock body 1. The door light signal switch 40 is installed in the door light signal mounting base of the connector 5.

[0091] In this embodiment, as Figure 12A As shown, when the ratchet 7 is in the open state, the ratchet signal rocker arm 19 is in the anti-locking state. At this time, the front arc-shaped truncated cone of the ratchet signal rocker arm 19 has one-way contact with the spring of the door light signal switch 40. Pressing the spring of the door light signal switch 40 will give the door lock an open signal feedback.

[0092] As shown in Figure 12B When the ratchet wheel 7 is in the half-locking / fully-locking state, the ratchet wheel 7 pushes the ratchet wheel signal rocker 19, the ratchet wheel signal rocker 19 rotates the front arc-shaped circular table to separate from the door lamp signal switch 40 spring, the door lamp signal switch 40 spring is reset under its own action, and the door lock gives a locking signal feedback.

[0093] The present application has the following functions:

[0094] First, the outer opening function of the present application is realized by pulling the outer opening push rod 35 connected with the outer handle of the door, the outer opening push rod 35 pushes the outer opening rocker 26 to rotate along the mounting column of the lock body 1, the outer opening rocker 26 pushes the sliding arm 50, the sliding arm 50 pushes the opening rocker 27 to rotate, the opening rocker 27 pushes the ratchet pawl linkage shaft 14, so that the ratchet pawl 8 rotates around the ratchet pawl shaft 11, the engaged ratchet wheel 7 is released, the ratchet wheel 7 is reset by the ratchet wheel return spring 20, and the door is opened. After closing the door, the ratchet wheel 7 rotates around the ratchet wheel shaft 10 by the lock catch, the ratchet pawl 8 is reset by the ratchet pawl return spring 21, and the engagement is generated, so that the door is firmly and reliably in the closed state.

[0095] Second, the inner opening function of the present application is realized by pulling the inner opening cable 33 connected with the inner handle assembly of the door, the inner opening cable 33 drives the inner opening rocker 32 to rotate, the inner opening rocker 32 drives the inner opening linkage arm 31 to rotate, so that the inner opening linkage arm 31 pushes the outer opening rocker 26 to push the sliding arm 50 and then the opening rocker 27, so as to push the ratchet pawl linkage shaft 14, so that the ratchet pawl 8 rotates around the ratchet pawl shaft 11, the engaged ratchet wheel 7 is released, the ratchet wheel 7 is reset by the ratchet wheel return spring 20, and the door is opened. After closing the door, the ratchet wheel 7 rotates around the ratchet wheel shaft 10 by the lock catch, the ratchet pawl 8 is reset by the ratchet pawl return spring 21, and the engagement is generated, so that the door is firmly and reliably in the closed state.

[0096] Third, the locking and unlocking functions of the present application are realized by the outer locking rocker 44 on the lock body and the lock cylinder assembly. When the lock cylinder assembly is rotated by the key, the outer locking rocker 44 is driven by the outer locking pull rod 45, so as to drive the lock cylinder shaft 43 to rotate, the lock cylinder shaft 43 drives the lock cylinder rocker 39 to rotate, so as to drive the locking linkage 47 to slide, when the locking linkage 47 pushes the sliding arm 50 to the locking position, the outer opening rocker 26 cannot contact with the sliding arm 50, so as to realize the locking of the door lock; when the locking linkage 47 releases the sliding arm 50, the sliding arm 50 is reset by the sliding arm return spring 29, and contacts with the outer opening rocker 26, so as to realize the unlocking of the door lock.

[0097] The inner locking and inner unlocking functions are realized by the inner locking button on the inner handle assembly and the inner locking rocker 46 connected by the inner locking cable 36. When the inner locking button is pressed, the inner locking cable pushes the inner locking rocker 54 to rotate, thereby pushing the locking connecting rod 47 to slide, when the locking connecting rod 47 pushes the sliding arm 50 to the locking position, the outer opening rocker 26 cannot contact the sliding arm 50, thereby realizing the door lock locking. When the inner locking button is opened, the inner locking button pulls the inner locking rocker 54 to rotate, when the inner locking rocker pushes the locking connecting rod 47 to slide, the locking connecting rod 47 releases the sliding arm 50, and the sliding arm 50 is reset by the sliding arm return spring 29 and contacts the outer opening rocker 26, thereby realizing the door lock unlocking.

[0098] The electric locking and unlocking functions: when the door lock locking is in the unlocking state, the motor 37 is powered to rotate, driving the gear 38 to rotate, and then the locking connecting rod 47 meshing with the gear 38 slides, the locking connecting rod 47 pushes the sliding arm 50 to move to the locking position, so that the outer opening rocker 26 cannot contact the sliding arm 50 to push the opening rocker 27 to touch the pawl linkage shaft to drive the pawl to open the door lock, realizing the electric locking of the door lock. When the door lock locking is in the locking state, the motor 37 is powered to rotate, driving the gear 38 to rotate, and then the locking connecting rod 47 meshing with the gear 38 slides, the locking connecting rod 47 from the abutting to the separation of the sliding arm 50, the sliding arm 50 is reset to the unlocking position under the driving of the sliding arm return spring, the locking connecting rod 47 from the abutting to the separation of the sliding arm 50, the sliding arm 50 is reset to the unlocking position under the driving of the sliding arm return spring, thereby pushing the opening rocker 27 to touch the pawl linkage shaft to drive the pawl to open the door lock, realizing the electric unlocking of the door lock.

[0099] Four, the anti-mislock function of the present application is realized as follows: when the door lock is in the opening state, the lower shaft of the ratchet signal rocker 19 is separated from the side surface of the ratchet wheel 7, the ratchet signal rocker 19 is rotated under the reset force of the pawl signal rocker return spring 18, the upper limiting angle hooking the locking connecting rod 47 is positioned, so that the locking connecting rod 47 cannot slide, at this time the door lock is in the state of being unable to lock / unlock, realizing the anti-mislock of the door lock.

[0100] Although the embodiments of the present application have been disclosed as above, they are not limited to the application listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application, and other modifications can be easily realized by those skilled in the art, therefore the present application is not limited to the specific details and the embodiments shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A front door lock for a vehicle, comprising: The utility model relates to a lock body (1), a shell (2), a ratchet shaft and a pawl shaft through the lock body, characterized in that the ratchet shaft is provided with a ratchet and a ratchet return spring from bottom to top, the pawl shaft is provided with a pawl and a pawl return spring, the pawl (8) is riveted and fixed with a pawl linkage shaft (14), the pawl linkage shaft is tightly sleeved with a pawl linkage shaft sleeve, the ratchet (7) and the pawl (8) are arranged on the lower surface of the lock body (1), the pawl (8) can interfere with the rotation of the ratchet (7), and the pawl (8) is fixed with a pawl return spring (21) with the lock body; the ratchet (7) is engaged with the pawl (8), the ratchet (7) has a lock catch opening capable of engaging a car door lock catch, and the ratchet (7) and the lock body (1) are further fixed with a ratchet return spring (20); the lock catch damping pad (51) is fixedly sleeved on the lock body (1) and is fixedly sleeved in the middle part of the lock body; The outer opening rocker (26) is plate-shaped and has a horizontal end formed by edge folding upward, the outer opening rocker (26) is movably sleeved on the mounting shaft above the lock body, the outer opening rocker (26) is sleeved with an outer opening return spring (25) between the lock body, the outer opening rocker horizontal end is sleeved with an outer opening push rod buckle (36), and the outer opening push rod buckle is sleeved with an outer opening push rod (35); The opening rocker (27) is an irregular structure, the opening rocker (27) is movably sleeved on the mounting shaft above the lock body and the outer opening rocker, the sliding arm (50) is mounted on the opening rocker, the sliding arm (50) and the opening rocker (27) are provided with a sliding arm return spring (29) and an outer opening rocker bushing (28), the outer opening rocker (26) abuts against the sliding arm (50), the sliding arm (50) abuts against the opening rocker (27), the opening rocker (27) can rotate on the mounting shaft of the lock body (1) and rotate around the mounting shaft of the lock body (1) along with the outer opening rocker (26) and abut against the pawl linkage shaft sleeve on the pawl linkage shaft (14) in the rotating process; The ratchet (7) and the pawl (8) are arranged as follows: when the outer opening rocker (26) rotates to push the sliding arm (50) to drive the opening rocker (27) to push the pawl linkage shaft (14) to rotate, the pawl linkage shaft (14) drives the pawl (8) to rotate, the pawl (8) is separated from the ratchet (7), and the ratchet (7) can rotate around the ratchet shaft (10), so that the lock catch is separated from the lock catch opening; Further comprising a cover plate, the cover plate is fixedly connected with the car door, the cover plate is embedded on the lock body, and the cover plate is vertically provided with the ratchet shaft and the pawl shaft, both ends of the ratchet shaft and the pawl shaft protrude out of the lock body; The connector (5) is arranged on the shell (2); The motor (37) is arranged on the shell (2) and the connector (5); The gear (38) is sleeved with one end on the motor rotating shaft, and the gear (38) is driven to rotate by the motor (37); The locking link (47) has a straight rack at one end and is engaged with the gear, and the locking link is sleeved on the shell.

2. The automobile front door lock according to claim 1, wherein The inner opening rocker arm (32) is triangular, one end of which is connected with the inner opening pull cable (33), and the other end thereof is downwardly abutted against the inner opening linkage arm (31), which is abutted against the outer opening rocker arm (26).

3. The automobile front door lock according to claim 1 or 2, wherein The ratchet wheel return spring (20) sleeved on the ratchet wheel shaft (10) is arranged on the upper side of the lock body (1); the pawl return spring (21) sleeved on the pawl shaft (11) is arranged on the upper side of the lock body (1); the connecting plate (4) is arranged on the upper side of the lock body (1), the two ends of the connecting plate (4) are sleeved on the upper ends of the pawl shaft (11) and the ratchet wheel shaft (10), and are fastened by riveting; and the ratchet wheel shock pad (13) is further arranged on the lock body (1).

4. The automobile front door lock according to claim 1, wherein The inner locking rocker arm (46) is further sleeved on the shell, and is driven to rotate by the inner locking pull cable (34); the lower part of the inner locking rocker arm (46) is abutted against the locking linkage (47), and the locking linkage is in contact with or separated from the sliding arm under the driving of the inner locking rocker arm.

5. The automobile front door lock according to claim 1 or 4, wherein The ratchet wheel signal rocker arm (19) is sleeved on the mounting shaft of the lock body (1), the lower long shaft of the ratchet wheel signal rocker arm (19) penetrates the lock body (1), the lower long shaft of the ratchet wheel signal rocker arm (19) is a vertical arc surface and is one-way abutted against the side surface of the ratchet wheel (7), the upper limiting angle of the ratchet wheel signal rocker arm (19) is engaged with the clamping table of the locking linkage (47); when the ratchet wheel is separated from the pawl, the ratchet wheel signal rocker arm rotates, so that one end of the ratchet wheel signal rocker arm is separated from the clamping of the locking linkage, so that the locking linkage can slide freely left and right.

6. The automobile front door lock according to claim 5, wherein The lock cylinder rocker arm (39) is sleeved on the lower part of the shell (2), the lower part of the locking linkage (47) is abutted against the lock cylinder rocker arm (39), the lock cylinder rocker arm is arranged to push the locking linkage (47) to slide when the lock cylinder rocker arm rotates, the lock cylinder rocker arm (39) is sleeved on the lock cylinder shaft (43) in the circular hole, the outer locking rocker arm (44) is sleeved on the lock cylinder shaft (43), and the outer locking pull rod (45) is clamped on the outer locking rocker arm (44) through the outer locking connector (55).

7. The automotive front door lock as described in claim 1, characterized in that, The shell is L-shaped, the horizontal part of the shell is arranged above the lock body, and the vertical part is arranged perpendicularly to the lock body, and the shell is fixedly connected with the lock body. The shell cover (6) is arranged on the shell (2).

8. The automobile front door lock according to claim 6, wherein Further comprising: The locking signal switch (42) is arranged on the middle extension of the connector (5), and the end of the locking linkage (47) is in contact with the spring of the locking signal switch (42) to trigger the locking signal switch (42); the locking signal switch (42) is arranged to output a signal when the locking linkage (47) is in contact with or away from the spring of the locking signal switch (42) when the locking linkage (47) slides. The door lamp signal switch (40) is arranged on the lower extension of the connector (5), and is triggered by the contact between the arc surface of the ratchet signal rocker (19) and the spring sheet of the door lamp signal switch (40). The door lamp signal switch (40) is arranged so that when the ratchet (7) is rotated to be separated from the lock catch, the ratchet (7) pushes the one end of the ratchet signal rocker (19) to contact the spring sheet of the door lamp signal switch (40) through the round corner, so as to output the signal.

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