An integrated door lock for heavy and light commercial vehicles

Abstract

The invention discloses an integrated door lock for heavy and light commercial vehicles, comprising: a lock body, on which a ratchet shaft and a pawl shaft are vertically arranged; an outward-opening rocker arm, which is a plate-shaped three-step structure and has a central hole and a side hole, and the outward-opening rocker arm is movably sleeved on the pawl shaft through one end thereof and is located above the lock body; an outward-opening linkage arm, which is door-like, and one end of the outward-opening linkage arm is just located in the side hole of the outward-opening rocker arm, and the other end of the outward-opening linkage arm is a stopper with a V-shaped notch on the side, and passes through the central hole of the outward-opening rocker arm and is located below the outward-opening rocker arm; a pawl, which is located below the lock body and movably sleeved on the pawl shaft, and a pawl stopper shaft is also fixedly arranged on the pawl, and is located in the V-shaped notch of the stopper; a ratchet, which is movably sleeved on the ratchet shaft and meshed with the pawl, and the ratchet has a lock opening that can engage with the door lock. The invention has the advantages of compact installation of parts and components and high transmission efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile door locks, and more specifically, to an integrated door lock for heavy and light commercial vehicles. Background Art

[0002] The functions of split door locks are realized separately and do not interfere with each other, which results in a complex structure and low transmission efficiency. If the relative installation positions of various components deviate or the components are deformed, the feedback signal will be unstable, affecting user use. Therefore, integrated door locks are the development trend of door lock bodies at home and abroad. Summary of the invention

[0003] An object of the present invention is to provide an integrated door lock for heavy trucks and light trucks, which has compact components and high transmission efficiency.

[0004] In order to achieve these purposes and other advantages according to the present invention, an integrated door lock for a heavy truck or light truck commercial vehicle is provided, comprising:

[0005] A lock body, on which a ratchet shaft and a pawl shaft are vertically arranged, and the upper and lower ends of the ratchet shaft and the pawl shaft both protrude out of the lock body;

[0006] The outward opening rocker arm is a plate-shaped three-step structure with a central hole and a side hole. The outward opening rocker arm is movably sleeved on the pawl shaft through one end thereof and is located above the lock body. The other end of the outward opening rocker arm is connected to the door handle through a pull rod or a zipper to drive the outward opening rocker arm to rotate around the pawl shaft;

[0007] The outward-opening linkage arm is door-like, one end of which is located in the side hole of the outward-opening rocker arm so that the outward-opening linkage arm moves synchronously with the outward-opening rocker arm, and the other end of which is a stopper with a V-shaped notch on the side, and passes through the central hole of the outward-opening rocker arm and is located below the outward-opening rocker arm;

[0008] A pawl is located below the lock body and is movably sleeved on the pawl shaft. A pawl blocking shaft is also fixedly arranged on the pawl and is located in the V-shaped notch of the block, so that when the outer opening linkage arm moves, the block pushes the pawl blocking shaft to drive the pawl to rotate;

[0009] A ratchet wheel, which is movably sleeved on the ratchet shaft and meshes with the ratchet pawl, and the ratchet wheel has a lock opening that can engage with the door lock;

[0010] The ratchet and the pawl are arranged such that when the outward opening rocker arm rotates to drive the outward opening linkage arm to push the pawl to rotate, the ratchet can rotate around the ratchet shaft, so that the door lock is disengaged from the lock opening and the door opens outwards.

[0011] Preferably, it also includes:

[0012] An outer locking rocker arm, one end of which is connected to the lock core via a pull rod, and the outer locking rocker arm has a downwardly protruding locking block;

[0013] The outer locking linkage arm has a snap-fitting hole and is matched with the snap-fitting block so that the outer locking rocker arm drives the outer locking linkage arm to move synchronously, and the side wall of the outer locking linkage arm also has a pair of protrusions;

[0014] A locking linkage arm is movably sleeved on the shaft of the lock body, a blocking piece is provided on the upper surface of the locking linkage arm and is exactly located between a pair of protrusions, the protrusions and the blocking piece abut against each other to make the locking linkage arm move, and a vertical blocking column is provided on the lower surface of the locking linkage arm;

[0015] The ratchet side wall has a protruding limiting block with a notch, and the blocking column is selectively located in the notch so that the ratchet is selectively limited to achieve locking and unlocking.

[0016] Preferably, it also includes:

[0017] An inner opening rocker arm, one end of which is connected to the inner door handle via a cable, and the inner opening rocker arm is movably sleeved on the shaft of the housing, and the housing is L-shaped and located above the lock body;

[0018] An electric rocker arm, whose side wall has an inwardly concave arc-shaped notch, the electric rocker arm is movably sleeved on the shaft of the housing, the other end of the inwardly opened rocker arm is located at the arc-shaped notch to drive the electric rocker arm to rotate, and the lower side wall of the electric rocker arm also has a flange;

[0019] The locking toggle arm has a square groove on its upper surface and the upper surface of the square groove and the side opening facing the electric rocker arm, and the flange is just located in the square groove. The locking toggle arm also has a vertical through hole, which just fits the locking column set on the upper surface of the locking linkage arm, so that the locking toggle arm drives the locking linkage arm to achieve unlocking.

[0020] Preferably, the inner opening rocker arm has a downwardly protruding crank handle in the middle part, and also includes: an inner opening linkage arm, which is three-dimensional, the vertical part of the inner opening linkage arm is against the crank handle of the inner opening rocker arm, the horizontal part of the inner opening linkage arm is movably mounted on the inner opening linkage arm shaft of the lock body, the horizontal part of the inner opening linkage arm forms a U-shaped opening, the ratchet stop shaft is located in the opening, the inner opening linkage arm is located below the outer opening linkage arm, and when the inner opening linkage arm rotates, it contacts the ratchet stop shaft through its opening to drive the ratchet to give way, the ratchet opens, and the car door opens.

[0021] Preferably, it further comprises: a motor, a worm and a double gear, wherein the worm is driven to rotate by the motor, and a gear is further provided on the side wall of the electric rocker arm, and the double gear is respectively meshed with the worm and the electric rocker arm.

[0022] Preferably, it also includes: a locking micro switch, which is arranged on the conductive plate, and the side wall of the electric rocker arm is also provided with a contact block, when the electric rocker arm rotates, the contact block selectively contacts the spring of the locking micro switch to make the locking micro switch turned on or off.

[0023] Preferably, it also includes: a ratchet micro switch, which is arranged on a conductive plate, the end of the spring piece of the ratchet micro switch is a bent U-shaped end, the ratchet has a downwardly recessed notch, and has an inclined surface inclined toward the ratchet surface, when the ratchet rotates, the inclined surface of the notch selectively contacts the U-shaped bottom end of the ratchet micro switch spring piece to turn the ratchet micro switch on or off.

[0024] Preferably, a lock shock-absorbing pad is arranged in the lock body, a locking shock-absorbing pad is arranged between the electric rocker arm and the shell, the pawl blocking shaft is a specific boss, and a pawl shock-absorbing pad is arranged between the boss and the pawl.

[0025] Preferably, it also includes a connecting plate, which is a three-dimensional stepped Z-shape and has two ends fixedly sleeved on the ratchet shaft and the pawl shaft respectively, and the locking toggle arm is located above the connecting plate.

[0026] Preferably, the locking block includes a center piece and an edge piece, the center piece is formed by three notches evenly spaced inwardly recessed from the side of a cylinder, there are three edge pieces located exactly at the three notches, and the edge pieces are composed of a support plate and an extension plate extending outward and downward from the upper end of the support plate.

[0027] The present invention has at least the following beneficial effects:

[0028] 1. The integrated door lock of the present invention has high manufacturing precision of various parts, compact installation, high transmission precision and high efficiency.

[0029] 2. The integrated door lock of the present invention can be opened outward and inward respectively by an outward opening rocker arm and an inward opening rocker arm. The door can be locked and unlocked not only by a lock / unlock button inside the car but also by a key outside the car.

[0030] 3. When the inner opening rocker arm of the integrated door lock of the present invention rotates, it can drive the unlocking transmission mechanism and the opening transmission mechanism to act simultaneously, thereby achieving simultaneous unlocking first and then opening.

[0031] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is the explosion diagram of the integrated door lock of the present invention;

[0033] Figure 2 It is a schematic diagram of the internal structure of the integrated door lock of the present invention as viewed from the front side;

[0034] Figure 3 It is a schematic diagram of the structure of the outward-opening rocker arm and the outward-opening linkage arm cooperating with each other in the present invention;

[0035] Figure 4 A bottom view of the internal structure of the integrated door lock of the present invention as viewed from the bottom;

[0036] Figure 5 It is a position relationship diagram of the ratchet blocking shaft and the outer opening linkage arm and the inner opening linkage arm of the present invention;

[0037] Figure 6 It is a position relationship diagram of the locking linkage arm, the outer locking linkage arm, the outer locking rocker arm and the locking toggle arm of the present invention;

[0038] Figure 7 It is a schematic diagram of the internal structure of the integrated door lock of the present invention as viewed from the rear side;

[0039] Figure 8 It is a structural schematic diagram of the external locking rocker arm of the present invention;

[0040] Fig. 9 It is a structural schematic diagram of the micro switch of the present invention;

[0041] Fig.10 This is a schematic diagram of the external functional structure of the present invention;

[0042] Fig.11 It is a schematic diagram of the structure of the external locking and unlocking functions of the present invention;

[0043] Fig.12 This is a schematic diagram of the structure of the internal opening and forced opening function of the present invention;

[0044] Fig.13 This is a schematic diagram of the electric locking and unlocking functional structure of the present invention;

[0045] Fig.14 It is a schematic diagram of the locking state of the present invention;

[0046] Fig.15 This is a schematic diagram of the unlocking stop state of the present invention;

[0047] Fig.16 It is a schematic diagram of the anti-mislocking function structure of the present invention.

[0048] Description of reference numerals:

[0049] 1 lock body, 2 shell, 3 cover plate, 4 connecting plate, 5 conductive plate, 6 shell cover, 7 ratchet, 701 lock opening, 702 limit block, 8 outer rocker arm bushing, 9 locking shock pad, 10 pawl, 11 pawl stop shaft, 12 outer rocker arm, 121 center hole, 122 side hole, 13 outer linkage arm, 131 stop block, 14 inner rocker arm, 141 crank, 15 inner linkage arm, 16 electric rocker arm, 161, flange, 162 contact block, 17 locking toggle arm, 171 square groove, 18 locking linkage arm, 181 stopper, 182 stopper column, 183 engagement column, 19 outer locking linkage arm, 191 protrusion, 20 External locking rocker arm, 201 locking block, 21 ratchet shock absorber pad, 22 inner return spring, 23 inner linkage arm return spring, 24 ratchet return spring, 25 ratchet return spring, 26 outer return spring, 27 outer linkage arm return spring, 28 locking torsion spring, 29 locking micro switch, 30 ratchet shaft, 31 ratchet shaft, 32 inner linkage arm shaft, 33 locking shock absorber pad, 34 motor, 35 worm, 36 double gear, 37 ratchet micro switch, 38 inner linkage arm rivet gasket, 39ST2.9*16 flower-shaped pan head tapping screw, 40ST4.2×22 hexagonal flower-shaped countersunk tapping screw, 41 external pull rod buckle. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0051] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0052] like Figures 1 to 9 As shown, the present invention provides an integrated door lock for heavy trucks, light trucks and commercial vehicles, comprising:

[0053] A lock body 1, on which a ratchet shaft 30 and a pawl shaft 31 are vertically arranged, and the upper ends and lower ends of the ratchet shaft 30 and the pawl shaft 31 are protruding outside the lock body 1;

[0054] The outward opening rocker arm 12 is a plate-shaped three-step structure having a central hole 121 and a side hole 122. The outward opening rocker arm 12 is movably sleeved on the pawl shaft 31 through one end thereof and is located above the lock body 1. The other end of the outward opening rocker arm 12 is connected to the outer door handle through a pull rod or a zipper to drive the outward opening rocker arm 12 to rotate around the pawl shaft 31;

[0055] The outward-opening linkage arm 13 is door-shaped, and one end of the outward-opening linkage arm 13 is just located in the side hole 122 of the outward-opening rocker arm 12 so that the outward-opening linkage arm 13 moves synchronously with the outward-opening rocker arm 12. The other end of the outward-opening linkage arm 13 is a stopper 131 with a V-shaped notch on the side, and passes through the central hole 121 of the outward-opening rocker arm 12 and is located below the outward-opening rocker arm 12;

[0056] The pawl 10 is located below the lock body 1 and is movably sleeved on the pawl shaft 31. The pawl 10 is also fixedly provided with a pawl blocking shaft 11, which is located in the V-shaped notch of the block 131, so that when the outer opening linkage arm 13 moves, the block 131 pushes the pawl blocking shaft 11 to drive the pawl 10 to rotate;

[0057] A ratchet wheel 7 is movably sleeved on the ratchet shaft 30 and meshed with the ratchet pawl 10. The ratchet wheel 7 has a lock opening 701 that can engage with the door lock;

[0058] The ratchet 7 and the pawl 10 are configured such that when the outward opening rocker arm 12 rotates to drive the outward opening linkage arm 13 to push the pawl 10 to rotate, the ratchet 7 can rotate around the ratchet shaft 30, so that the door latch is disengaged from the latch opening 701, and the door is opened outwards.

[0059] In the above technical solution, the ratchet shaft 30 and the pawl shaft 31 pass through the lock body 1, the ratchet 7 and the pawl 10 are located below the lock body 1, and then wrapped by the cover plate 3, so that the ratchet 7 and the pawl 10 are located between the lock body 1 and the cover plate 3, and the lock body 1 and the shell 2 thereon and the shell cover 6 on the side wrap the other parts into an integral door lock. The outward opening rocker arm 12 and the outward opening linkage arm 13 are both located above the lock body 1, and their specific structures and setting positions are shown in the accompanying drawings. The center hole 121 of the outward opening rocker arm 12 accommodates the other end of the outward opening linkage arm 13 to pass through and can move within a certain range, and the side hole 122 of the outward opening rocker arm 12 accommodates one end of the outward opening linkage arm 13, so that the two can move at the same time, and the outward opening rocker arm 12 is also provided with a small hole next to the side hole 122, in order to pass one end of the outward opening linkage arm return spring 27. After the outward opening rocker arm 12 is sleeved on the pawl shaft 31, a stepped outward opening rocker arm bushing 8 and an outward opening return spring 26 are also arranged on the top. After the ratchet 7 and the pawl 10 are sleeved, a ratchet return spring 24 and a pawl return spring 25 are also arranged on the ratchet shaft 30 and the pawl shaft 31. The other end of the outward opening rocker arm 12 is provided with an outward opening pull rod buckle 41 for connecting a pull rod or a zipper. The block 131 of the outward opening linkage arm 13 forms a transverse V-shaped notch facing the inner side. The pawl stop shaft 11 and the pawl shaft 31 are respectively located at the two ends of the pawl 10, and the pawl stop shaft 11 is just located in the V-shaped notch. The ratchet 7 is meshed with the pawl 10. The pawl 10 can drive the ratchet 7 to rotate, so that the lock opening 701 is released, and the door lock is disengaged from the lock opening 701, and the door opens outward.

[0060] Example 1

[0061] The outward opening function is realized by connecting the vehicle door outer handle and the outward opening rocker arm 12 of the lock body 1 through a pull rod or a pull cable.

[0062] When opening from the outside, the door handle button outside pulls the outside opening rocker arm 12 to rotate, and the outside opening rocker arm 12 drives the outside opening linkage arm 13 installed thereon to move, and the outside opening linkage arm 13 pushes the pawl stop shaft 11 riveted on the pawl 10 to move and give way. At this time, the ratchet wheel 7 opens and the door opens.

[0063] In another technical solution, it also includes:

[0064] An outer locking rocker arm 20, one end of which is connected to the lock core via a pull rod, and the outer locking rocker arm 20 has a downwardly protruding locking block 201;

[0065] The outer locking linkage arm 19 has a snap-in hole and is matched with the snap-in block 201 so that the outer locking rocker arm 20 drives the outer locking linkage arm 19 to move synchronously. The side wall of the outer locking linkage arm 19 also has a pair of protrusions 191;

[0066] The locking linkage arm 18 is movably sleeved on the shaft of the lock body 1. A blocking piece 181 is provided on the upper surface of the locking linkage arm 18 and is exactly located between a pair of protrusions 191. The protrusions 191 and the blocking piece 181 abut against each other to make the locking linkage arm 18 move. The lower surface of the locking linkage arm 18 has a vertical blocking column 182;

[0067] The side wall of the ratchet 7 has a protruding limiting block 702 with a notch, and the blocking column 182 is selectively located in the notch so that the ratchet 7 is selectively limited to achieve locking and unlocking.

[0068] In the above technical solution, the outer locking rocker arm 20 rotates to drive the outer locking linkage arm 19 to move synchronously, and the protrusion 191 on the outer locking linkage arm 19 contacts the blocking piece 181 on the locking linkage arm 18, pushing the locking linkage arm 18 to rotate. When the blocking column 182 on the locking linkage arm 18 is located in the notch during the rotation of the locking linkage arm 18, the ratchet 7 cannot rotate back under the action of the ratchet return spring 24, that is, locking is achieved. When the blocking column 182 on the locking linkage arm 18 moves out of the notch during the rotation of the locking linkage arm 18, the ratchet 7 is no longer restricted by the pawl 10 and can rotate back under the action of the ratchet return spring 24 to achieve unlocking. The locking linkage arm 18 also corresponds to a locking torsion spring 28.

[0069] Example 2

[0070] The external locking function is achieved by connecting the door lock cylinder and the external locking rocker arm 20 of the lock body 1 through a pull rod.

[0071] The operating lock cylinder drives the outer locking rocker arm 20 to swing back and forth, and drives the locking linkage arm 18 to rotate back and forth through the outer locking linkage arm 19 connected to the outer locking rocker arm 20, and the purpose of locking and unlocking is achieved by the outer locking linkage arm 19 rotating back and forth in linkage with the locking linkage arm 18.

[0072] Example 3

[0073] Mechanical anti-mislocking function.

[0074] When the door is locked, the key is used to operate the lock cylinder to drive the outer locking rocker arm 20 to swing back and forth, pushing the outer locking linkage arm 19 connected to the outer locking rocker arm 20 to drive the locking linkage arm 18 to rotate back and forth, and locking and unlocking are achieved by rotating the outer locking linkage arm 19 in linkage with the locking linkage arm 18 back and forth, thereby achieving the purpose of preventing accidental locking.

[0075] In another technical solution, it also includes:

[0076] An inner opening rocker arm 14, one end of which is connected to the inner door handle via a cable, the inner opening rocker arm 14 is movably sleeved on the shaft of the housing 2, the housing 2 is L-shaped and located above the lock body 1, and the middle of the inner opening rocker arm 14 has a crank handle 141 protruding downwards;

[0077] The electric rocker arm 16 has a side wall with an inwardly concave arc-shaped notch. The electric rocker arm 16 is movably sleeved on the shaft of the housing 2. The other end of the inner open rocker arm 14 is located at the arc-shaped notch to drive the electric rocker arm 16 to rotate. The lower side wall of the electric rocker arm 16 also has a flange 161;

[0078] The locking toggle arm 17 has a square groove 171 on its upper surface, and the upper surface of the square groove 171 and the side opening facing the electric rocker arm 16, and the flange 161 is just located in the square groove 171. The locking toggle arm 17 also has a vertical through hole, which just fits the engaging column 183 provided on the upper surface of the locking linkage arm 18, so that the locking toggle arm 17 drives the locking linkage arm 18 to move and realize unlocking;

[0079] The inner opening linkage arm 15 is three-dimensional, and the vertical part of the inner opening linkage arm 15 is against the crank handle 141 of the inner opening rocker arm 14, and the horizontal part of the inner opening linkage arm 15 is movably mounted on the inner opening linkage arm shaft 32 of the lock body 1, and the horizontal part of the inner opening linkage arm 15 forms a U-shaped opening, and the pawl stop shaft 11 is located in the opening. The inner opening linkage arm 15 is located below the outer opening linkage arm 13, and when the inner opening linkage arm 15 rotates, it contacts the pawl stop shaft 11 through its opening to drive the pawl 10 to give way, the ratchet 7 opens, and the car door opens.

[0080] In the above technical solution, the electric rocker arm 16 has a concave arc-shaped notch extending to the lower right when viewed from the rear side, and the inwardly opened rocker arm 14 enables the electric rocker arm 16 to rotate only clockwise. The electric rocker arm 16 is provided with a flange 161 on the lower side wall, which is engaged in the square groove 171 of the locking toggle arm 17, driving the locking toggle arm 17 to rotate. The locking toggle arm 17 is also movably mounted on the axis of the lock body 1. The locking toggle arm 17 drives the locking linkage arm 18 to rotate by engaging the engaging column 183 in the through hole. The blocking column 182 arranged below the locking linkage arm 18 clears the notch of the ratchet 7 to achieve unlocking. When the inner opening rocker arm 14 moves, it drives the electric rocker arm 16 to rotate, thereby realizing a series of subsequent actions to complete unlocking. The inner opening rocker arm 14 also pushes the inner opening linkage arm 15 to move. The crank 141 is located on the side of the vertical part of the inner opening linkage arm 15. In order to better offset each other, the vertical part of the inner opening linkage arm 15 has a bent and extended side plate to offset the crank 141. The inner opening rocker arm 14 corresponds to the inner opening return spring 22, and the inner opening linkage arm 15 is also provided with an inner opening linkage arm return spring 23 and an inner opening linkage arm gasket on its axis.

[0081] Example 4

[0082] The inner opening forced opening function is realized by connecting the inner door handle and the inner opening rocker arm 14 of the lock body 1 through a cable.

[0083] When the inner door is opened, the inner door rocker arm 14 rotates and pushes the electric rocker arm 16 to move together. The electric rocker arm 16 pushes the locking toggle arm 17 assembled thereon to move. The movement of the locking toggle arm 17 drives the locking linkage arm 18 to move and unlock. At the same time, the inner door rocker arm 14 pushes the inner door linkage arm 15 to move. The inner door linkage arm 15 pushes the pawl stop shaft 11 riveted on the pawl 10 to move and give way. At this time, the ratchet wheel 7 opens and the car door opens, that is, it is unlocked first and then opened.

[0084] In another technical solution, it also includes: a motor 34, a worm 35 and a double gear 36. The worm 35 is driven to rotate by the motor 34. The side wall of the electric rocker arm 16 is also provided with a gear. The double gear 36 is meshed with the worm 35 and the electric rocker arm 16 respectively.

[0085] In the above technical solution, the motor 34 can rotate forward and reverse, so that the worm 35 drives the double gear 36 to rotate forward and reverse, and the gear on the electric rocker arm 16 engages with the double gear 36 to achieve forward and reverse rotation, thereby realizing a series of subsequent actions to achieve electric locking and unlocking.

[0086] Example 5

[0087] Electric locking and unlocking function.

[0088] When the motor 34 is energized, the worm 35 connected to the shaft of the motor 34 rotates, and the double gear 36 and the electric rocker arm 16 meshing with the worm 35 rotate, pushing the locking toggle arm 17 assembled thereon to move. The movement of the locking toggle arm 17 drives the locking linkage arm 18 to move, driving the locking linkage arm 18 to swing back and forth to achieve the function of locking and unlocking.

[0089] In another technical solution, it also includes: a locking micro switch 29, which is arranged on the conductive plate 5, and the side wall of the electric rocker arm 16 is also provided with a contact block 162. When the electric rocker arm 16 rotates, the contact block 162 selectively contacts the spring of the locking micro switch 29 to make the locking micro switch 29 turned on or off.

[0090] In the above technical solution, when in the locked state, the locking micro switch 29 spring piece does not contact the contact block 162 on the electric rocker arm 16, the locking micro switch 29 is not triggered by the electric rocker arm 16, and the locking micro switch 29 signal is in the disconnected state; when in the unlocked state, the locking micro switch 29 spring piece contacts the contact block 162 of the electric rocker arm 16 and squeezes the locking micro switch 29 spring piece, the locking micro switch 29 is triggered by the electric rocker arm 16, and the locking micro switch 29 signal is in the on state. According to the state of the locking micro switch 29 signal, it can be determined whether the door lock is in the locked or unlocked state. The conductive plate 5 is used to transmit instructions (control the forward and reverse rotation of the motor) and transmit micro switch signals.

[0091] In another technical solution, it also includes: a ratchet micro switch 37, which is arranged on the conductive plate 5, the end of the spring piece of the ratchet micro switch 37 is a bent U-shaped end, and the ratchet 7 has a downwardly recessed notch, which has an inclined surface inclined toward the surface of the ratchet 7. When the ratchet 7 rotates, the inclined surface of the notch selectively contacts the U-shaped bottom end of the spring piece of the ratchet micro switch 37 to make the ratchet micro switch 37 turned on or off.

[0092] In the above technical solution, when the ratchet 7 is in the fully locked state, the ratchet micro switch 37 is not triggered by the ratchet 7, at this time, the U-shaped bottom end of the spring piece of the ratchet micro switch 37 is located in the notch and does not contact the inclined surface, and the signal of the ratchet micro switch 37 is in the disconnected state; when the ratchet 7 is in the open or half-locked state, the ratchet micro switch 37 is triggered by the ratchet 7, at this time, the U-shaped bottom end of the spring piece of the ratchet micro switch 37 contacts the inclined surface, squeezing the spring piece of the ratchet micro switch 37, and the signal of the ratchet micro switch 37 is in the on state. According to the signal state of the ratchet micro switch 37, it can be determined whether the door lock is in the fully locked state.

[0093] In another technical solution, a lock shock-absorbing pad 33 is provided in the lock body 1, located at the lock below the connecting plate 4, a lock shock-absorbing pad 9 is provided between the electric rocker arm 16 and the shell 2, the ratchet stop shaft 11 is a specific boss, and a ratchet shock-absorbing pad 21 is provided between the boss and the ratchet 10.

[0094] In another technical solution, a connecting plate 4 is also included, which is a three-dimensional stepped Z-shape and has two ends fixedly sleeved on the ratchet shaft 30 and the pawl shaft 31 , respectively. The locking toggle arm 17 is located above the connecting plate 4 .

[0095] In another technical solution, the locking block 201 includes a center piece and an edge piece. The center piece is formed by three notches that are evenly spaced inwardly recessed from the side of a cylinder. There are three edge pieces that are exactly located at the three notches. The edge pieces are composed of a support plate and an extension plate that extends outward and downward from the upper end of the support plate.

[0096] The assembly process of the integrated door lock of the present invention is as follows:

[0097] Install the worm 35 onto the motor 34 to form a motor assembly; install the locking micro switch 29 and the ratchet micro switch 37 into the corresponding slots of the conductive plate 5 respectively to form a conductive plate sub-assembly; install the lock shock-absorbing pad 33 into the corresponding slots of the lock body 1 to form a lock sub-assembly 1; install the pawl stop shaft 11 into the pawl 10 and rivet to form a pawl sub-assembly; install the inner opening linkage arm shaft 32, the inner opening linkage arm return spring 23, the inner opening linkage arm 15, and the inner opening linkage arm gasket 38 into the lock sub-assembly 1 in sequence and rivet to form a lock sub-assembly 2; The pawl shaft 31, the ratchet shaft 30, the pawl return spring 25, the outward opening rocker arm 12, the outward opening rocker arm bushing 8, the outward opening return spring 26, the ratchet return spring 24, the connecting plate 4, and the outward opening pull rod buckle 41 are sequentially installed in the lock sub-assembly two and riveted (connecting plate end) to form the lock sub-assembly three; the ratchet 7, the pawl 10, the cover plate 3, are sequentially installed in the lock sub-assembly three and riveted (cover plate end) to form the lock sub-assembly four; the locking linkage arm 18 and the locking torsion spring 28 are sequentially installed in the lock sub-assembly four to form the lock sub-assembly five; the outward opening linkage The arm 13, the return spring 27 of the outer opening linkage arm, and the locking toggle arm 17 are sequentially installed in the lock sub-assembly five to form the lock sub-assembly six; the outer locking rocker arm 20 and the outer locking linkage arm 19 are sequentially installed in the corresponding positions of the shell 2 to form the shell sub-assembly one; the conductive plate sub-assembly is installed in the shell sub-assembly one to form the shell sub-assembly two; the motor assembly is aligned with the pins in the shell sub-assembly two, and the locking shock-absorbing pad 9 is sequentially installed in the shell sub-assembly two to form the shell sub-assembly three; the double gear 36 and the electric rocker arm 16 are installed in the shell sub-assembly three to form The lock body sub-assembly 6 and the shell sub-assembly 4 are combined, and four ST2.9*16 flower-shaped pan head tapping screws 39 and one ST4.2×22 hexagonal flower-shaped countersunk head tapping screw 40 are sequentially installed in corresponding positions and tightened to form a lock body sub-assembly 1; the inner opening rocker arm 14, the inner opening return spring 22, and the shell cover 6 are sequentially installed in the lock body sub-assembly 1 to form a lock body sub-assembly 2; five ST2.9*16 flower-shaped pan head tapping screws 39 are sequentially installed in corresponding positions of the lock body sub-assembly 2 and tightened to form a door lock assembly.

[0098] The working processes of the integrated door lock of the present invention are as follows:

[0099] 1. External opening function

[0100] like Fig.10As shown, the outward opening function is realized by connecting the outer door handle and the outward opening rocker arm 12 on the lock body through a pull rod or a cable. When the outer door handle is pulled by external force, it drives the outward opening rocker arm 12 to rotate around the pawl shaft by pulling. The outward opening rocker arm 12 is a plate-shaped three-step structure, and has a center hole 121 and a side hole 122. The lower horizontal part of the outward opening rocker arm is sleeved on the pawl shaft and located above the lock body 1. The center hole 121 of the middle horizontal part just abuts against the left side of the outward opening linkage arm 13 (contact surface 1). When the outward opening rocker arm 12 rotates, it pushes the outward opening linkage arm 13 to rotate. The rotation of the outward opening linkage arm 13 drives the pawl stop shaft 11 located below it to rotate (contact surface 2). The pawl stop shaft 11 is riveted on the pawl 10. The rotation of the pawl stop shaft drives the pawl 10 to rotate and give way, so that the ratchet rotates, so that the lock engaged in the ratchet lock opening is separated from the ratchet, so that the door can be opened. When the outside door handle assembly is released, the outside opening rocker arm automatically returns to its original position under the action of the outside opening return spring.

[0101] 2. External locking and unlocking functions

[0102] like Fig.11 As shown in FIG. 1 , the external locking and unlocking functions are realized by connecting the door lock cylinder and the external locking rocker arm 20 on the lock body through a pull rod. When the lock cylinder assembly is turned by the key, the pull rod on it drives the external locking rocker arm 20 to rotate around the housing 2, thereby driving the locking linkage arm 18 to rotate through the external locking linkage arm 19 (contact surface 3) connected to the external locking rocker arm 20. The locking linkage arm 18 is sleeved on a fixed shaft extending vertically upward from the lock body. The locking linkage arm 18 is connected to the locking toggle arm 17 as shown in FIG. Figure 6 The locking linkage arm 18 rotates to drive the locking toggle arm 17 to rotate, and the locking toggle arm 17 rotates to drive the outer opening linkage arm 13 to rotate (contact surface 4), so that the pawl blocking shaft 11 disengages from the contact surface 2, and the rotation of the outer opening linkage arm 13 cannot drive the pawl 10 to rotate and give way, thereby achieving the purpose of locking; by rotating the lock core assembly with the key, the outer opening linkage arm 13 can drive the pawl 10 to rotate and give way, thereby achieving the purpose of unlocking.

[0103] 3. Internal opening and forced opening function

[0104] like Fig.12As shown, the inner opening forced opening function is realized by connecting the inner door handle and the inner opening rocker arm 14 on the lock body through a cable. When the inner door handle is pulled by external force, the inner opening rocker arm 14 is driven by the cable to rotate around the fixed shaft extending vertically upward from the shell body, and the other end of the inner opening rocker arm 14 abuts against the arc-shaped notch (contact surface 5) extending from the lower right side of the electric rocker arm 16, thereby pushing the electric rocker arm 16 to rotate. The electric rocker arm 16 is provided with a flange 161 on the lower side wall, which is engaged in the square groove 171 of the locking toggle arm 17, driving the locking toggle arm 17 to rotate, and the movement of the locking toggle arm 17 drives the locking linkage arm 18 to move and unlock, and at the same time, the inner opening rocker arm 14 drives the inner opening linkage arm 15 to rotate (contact surface 6), and the inner opening linkage arm 15 pushes the ratchet stop shaft 11 riveted on the ratchet 10 to move and give way. The connection relationship is shown in FIG. Figure 5 At this time, the ratchet wheel 7 is opened, and the door is opened, that is, the door is unlocked first and then opened. When the inner door handle assembly is released, the inner opening rocker arm automatically returns to its original position under the action of the inner opening return spring.

[0105] 4. Electric locking and unlocking function

[0106] like Fig.13 As shown, the motor 34 is energized in the forward direction, and the worm 35 on the motor shaft rotates, driving the double gear 36 meshing with the worm 35 to rotate, and at the same time driving the electric rocker arm 16 meshing with the double gear 36 to rotate, and the flange 161 is provided on the lower side wall of the electric rocker arm 16, which is engaged in the square groove 171 of the locking toggle arm 17, driving the locking toggle arm 17 to rotate, and the rotation of the locking toggle arm 17 drives the outer opening linkage arm 13 to rotate, so that the pawl blocking shaft 11 is separated from the contact surface 2, and the rotation of the outer opening linkage arm 13 cannot drive the pawl 10 to rotate and give way, thereby achieving the function of electric locking, as shown in FIG. Fig.14 Status shown.

[0107] When the motor 34 is energized in the reverse direction, the worm 35 on the motor shaft rotates, driving the double gear 36 meshing with the worm 35 to rotate, and at the same time driving the electric rocker arm 16 meshing with the double gear 36 to rotate. A flange 161 is provided on the lower side wall of the electric rocker arm 16, which is engaged in the square groove 171 of the locking toggle arm 17, driving the locking toggle arm 17 to rotate. The rotation of the locking toggle arm 17 drives the outer opening linkage arm 13 to rotate, so that the pawl blocking shaft 11 is separated from the contact surface 2. The rotation of the outer opening linkage arm 13 can drive the pawl 10 to rotate and give way, thereby achieving the function of electric unlocking, such as Fig.15 Status shown.

[0108] 5. Anti-mislocking function

[0109] like Fig.16As shown, the anti-mislocking function means that the door cannot be locked when it is open, and the locking function is ineffective when the door is open. When the ratchet 7 is in the fully open position and the locking linkage arm 18 is in the unlocked position, the limit block 702 protruding from the side wall of the ratchet blocks the locking linkage arm 18 from rotating, thereby realizing the anti-mislocking function.

[0110] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An integrated door lock for heavy and light commercial vehicles, characterized in that: include: A lock body, on which a ratchet shaft and a pawl shaft are vertically arranged, and the upper and lower ends of the ratchet shaft and the pawl shaft both protrude out of the lock body; The outward opening rocker arm is a plate-shaped three-step structure, and the outward opening rocker arm has a central hole and a side hole. The outward opening rocker arm is movably sleeved on the pawl shaft through one end thereof, and one end of the outward opening rocker arm is located above the lock body. The other end of the outward opening rocker arm is connected to the outer door handle through a pull rod or a zipper to drive the outward opening rocker arm to rotate around the pawl shaft; The outward-opening linkage arm is door-like, one end of which is just located in the side hole of the outward-opening rocker arm so that the outward-opening linkage arm moves synchronously with the outward-opening rocker arm, and the other end of which is a stopper with a V-shaped notch on the side, which passes through the central hole of the outward-opening rocker arm and is located below the outward-opening rocker arm; A pawl is located below the lock body and is movably sleeved on the pawl shaft. A pawl blocking shaft is also fixedly arranged on the pawl. The pawl blocking shaft is located in the V-shaped notch of the block, so that when the outer opening linkage arm moves, the block pushes the pawl blocking shaft to drive the pawl to rotate; A ratchet wheel, which is movably sleeved on the ratchet shaft and meshes with the ratchet pawl, and the ratchet wheel has a lock opening that can engage with the door lock; The ratchet and the pawl are arranged such that when the outward opening rocker arm rotates to drive the outward opening linkage arm to push the pawl to rotate, the ratchet can rotate around the ratchet shaft, so that the door lock is disengaged from the lock opening, and the door is opened outwards; Also includes: An outer locking rocker arm, one end of which is connected to the lock core via a pull rod, and the outer locking rocker arm has a downwardly protruding locking block; The outer locking linkage arm has a snap-fitting hole which just matches with the snap-fitting block so that the outer locking rocker arm drives the outer locking linkage arm to move synchronously, and the side wall of the outer locking linkage arm also has a pair of protrusions; A locking linkage arm is movably sleeved on the shaft of the lock body, a blocking piece is arranged on the upper surface of the locking linkage arm and the blocking piece is just located between a pair of protrusions, the protrusions and the blocking piece abut against each other to make the locking linkage arm move, and a vertical blocking column is arranged on the lower surface of the locking linkage arm; Wherein, the ratchet side wall has a protruding limit block, the limit block has a notch, and the blocking column is selectively located in the notch so that the ratchet is selectively limited to achieve locking and unlocking; Also includes: An inner opening rocker arm, one end of which is connected to the inner door handle via a cable, and the inner opening rocker arm is movably sleeved on the shaft of the housing, and the housing is L-shaped and located above the lock body; An electric rocker arm, whose side wall has an inwardly concave arc-shaped notch, the electric rocker arm is movably sleeved on the shaft of the housing, the other end of the inwardly opened rocker arm is located at the arc-shaped notch to drive the electric rocker arm to rotate, and the lower side wall of the electric rocker arm also has a flange; The locking toggle arm has a square groove on its upper surface and the square groove opens toward the side of the electric rocker arm, the flange is just located in the square groove, and the locking toggle arm also has a vertical through hole, and the through hole just fits the engaging column arranged on the upper surface of the locking linkage arm, so that the locking toggle arm drives the locking linkage arm to move to realize unlocking; The inner opening rocker arm has a crank handle protruding downward in the middle, and also includes: an inner opening linkage arm, which is in a three-dimensional shape, the vertical part of the inner opening linkage arm is against the crank handle of the inner opening rocker arm, the horizontal part of the inner opening linkage arm is movably sleeved on the inner opening linkage arm shaft of the lock body, the horizontal part of the inner opening linkage arm forms a U-shaped opening, the ratchet stop shaft is located in the opening of the inner opening linkage arm, the inner opening linkage arm is located below the outer opening linkage arm, and when the inner opening linkage arm rotates, the ratchet stop shaft contacts the ratchet stop shaft through the opening of the inner opening linkage arm to drive the ratchet to give way, the ratchet wheel opens, and the car door opens; It also includes: a motor, a worm and a double gear, the worm is driven to rotate by the motor, the side wall of the electric rocker arm is also provided with a gear, and the double gear is respectively meshed with the worm and the electric rocker arm.

2. The integrated door lock for heavy trucks and light trucks as claimed in claim 1, characterized in that: Also includes: The locking micro switch is arranged on a conductive plate, and a contact block is also arranged on the side wall of the electric rocker arm. When the electric rocker arm rotates, the contact block selectively contacts the spring of the locking micro switch to turn the locking micro switch on or off.

3. The integrated door lock for heavy trucks and light trucks as claimed in claim 1, characterized in that: Also includes: A ratchet micro switch is arranged on a conductive plate, the end of the spring piece of the ratchet micro switch is a bent U-shaped end, the ratchet has a downwardly recessed notch, and the notch has an inclined surface inclined toward the ratchet surface. When the ratchet rotates, the inclined surface of the notch selectively contacts the U-shaped bottom end of the ratchet micro switch spring piece to turn the ratchet micro switch on or off.

4. The integrated door lock for heavy trucks and light trucks as claimed in claim 1, characterized in that: A lock shock-absorbing pad is arranged in the lock body, a locking shock-absorbing pad is arranged between the electric rocker arm and the shell, the ratchet stop shaft has a boss, and a ratchet shock-absorbing pad is arranged between the boss and the ratchet.

5. The integrated door lock for heavy trucks and light trucks as claimed in claim 1, characterized in that: It also includes a connecting plate, which is a three-dimensional stepped Z-shape and the two ends of the connecting plate are respectively fixedly sleeved on the ratchet shaft and the pawl shaft, and the locking toggle arm is located above the connecting plate.

6. The integrated door lock for heavy trucks and light trucks as claimed in claim 1, characterized in that: The locking block includes a center piece and an edge piece. The center piece is formed by three notches evenly spaced inwardly recessed from the side of a cylinder. There are three edge pieces located exactly at the three notches. The edge piece is composed of a support plate and an extension plate extending outward and downward from the upper end of the support plate.

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