Container door lock for pickup truck
By improving the rotation direction of ratchets and pawls and the way the electric actuator drives the pawl toggle plate, the problem of complex structure and many parts of the pickup truck cargo box lock is solved, and the lock body is miniaturized and efficiently assembled.
Patent Information
- Application Number
- CN202422071084.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The existing pickup truck cargo box lock has a complex structure and many parts, resulting in a large lock body, complex assembly and high cost.
The rotation direction of the ratchet and pawl is improved to an angle coordination, and combined with an electric actuator, the pawl toggle plate is driven to simplify the part structure and the motor is used to drive the pawl toggle plate to rotate, so as to realize the rotation of the pawl toggle plate toward the unlocking position.
Reduces lock body size, reduces parts quantity and weight, reduces costs, and improves assembly efficiency and quality.
Smart Images
Figure CN223062225U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cargo box door locks for pickup trucks, and in particular to a cargo box door lock for pickup trucks. Background Art
[0002] With the popularity of pickup trucks, the demand for pickup truck cargo boxes has also increased. However, since pickup truck cargo boxes are different from those of other trucks, pickup truck cargo boxes are relatively small, and the space available for installing cargo box locks is also relatively small.
[0003] At present, the internal structure of the inner and outer door locks of pickup truck cargo boxes is complex, with a large number of parts, a large volume, and a high total parts cost. In addition, during production, the assembly is complex and difficult, the assembly time is long, and the assembly efficiency and quality are difficult to guarantee.
[0004] Therefore, it is necessary to improve the structure of the door lock of the pickup truck cargo box to obtain a door lock structure that is more suitable for the pickup truck cargo box. Utility Model Content
[0005] The utility model aims to provide a cargo box door lock for a pickup truck, so as to solve the technical problem in the prior art that the pickup truck cargo box lock has a complex structure and many parts, which leads to a large lock body volume.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A cargo door lock for a pickup truck, used to be installed on the cargo door, comprising a ratchet and a pawl, wherein the ratchet and the pawl can rotate around a ratchet shaft and a pawl shaft respectively, a ratchet reset spring is installed on the ratchet shaft, when the ratchet is in the locked position, the ratchet reset spring has elastic potential energy, the pawl is meshed with the ratchet, the pawl can prevent the ratchet from rotating toward the unlocked position, and an angle is formed between the rotating surface of the ratchet and the rotating surface of the pawl;
[0008] The cargo door lock for a pickup truck also includes a pawl plate that can be driven to rotate by an external force, and the rotating surface of the pawl plate is parallel to the rotating surface of the ratchet wheel; when unlocking, the pawl plate rotates to push the pawl to rotate toward the unlocking position, so that the pawl is disengaged from the ratchet wheel, and the ratchet wheel can rotate to the unlocking position under the elastic reset force of the ratchet reset spring.
[0009] The working principle of this scheme is: when the ratchet and the pawl are both in the locked position, the pawl abuts against the ratchet, and the pawl can prevent the ratchet from rotating toward the unlocked position; when unlocking, an external force drives the pawl to move the plate to rotate, and the pawl to move the plate will contact and drive the pawl to rotate along the pawl shaft during the rotation process, and at the same time disengage from the ratchet, and the ratchet rotates to the unlocked position due to the elastic reset force of the ratchet reset spring.
[0010] This solution adopts a brand-new mechanism. Compared with the common matching mode of ratchet and pawl, the rotation direction of the ratchet and pawl is changed from the same rotation plane to an angle between the rotation plane of the ratchet and the rotation plane of the pawl, thereby reducing the space occupied by the matching structure inside the lock body, thereby reducing the size of the lock body; using a ratchet toggle plate that can be driven to rotate by an external force, the pawl can be rotated toward the unlocking position, which simplifies the part structure, reduces the number of parts, reduces the weight of the lock body, and reduces the total part cost; at the same time, during assembly, it is only necessary to determine the position of the rotating shaft of each rotating component, which can ensure the matching accuracy of the operation of each structure after assembly, simplify the difficulty of assembly, save assembly time, and improve assembly efficiency and assembly quality.
[0011] As one of the implementation methods of the pawl torsion plate pushing the pawl to rotate, the pawl torsion plate includes a force-applying end, and correspondingly, a force-bearing column is provided on the pawl, and the force-bearing column extends from the pawl surface toward the direction away from the pawl surface; when the pawl torsion plate rotates, the force-applying end can push the force-bearing column, so that the pawl rotates toward the unlocking position, so that the pawl is disengaged from the ratchet, and the ratchet can rotate to the unlocking position under the elastic reset force of the ratchet reset spring.
[0012] As one of the implementation methods of the external force driving the ratchet toggle plate to rotate, the ratchet toggle plate is driven to rotate by an electric actuator assembly;
[0013] The electric actuator assembly includes a motor, a worm is fixed to the output end of the motor, and the electric actuator assembly also includes an electric open worm wheel, the electric open worm wheel is meshed with the worm, and the motor can drive the worm to rotate, thereby driving the electric open worm wheel to rotate;
[0014] An electric open rocker arm is arranged coaxially with the electric open worm gear, and the electric open rocker arm can rotate synchronously with the electric open worm gear. Correspondingly, a force-bearing end is also arranged on the ratchet plate. When the electric open rocker arm rotates, the electric open rocker arm can abut against the force-bearing end and push the ratchet plate to rotate.
[0015] When unlocking electrically, the motor rotates and drives the electric open worm wheel to rotate through the worm gear, thereby driving the electric open rocker arm to rotate and pushing the ratchet plate to rotate. The ratchet plate contacts and drives the ratchet to rotate along the ratchet shaft and disengages from the ratchet wheel at the same time. The ratchet wheel rotates to the unlocked position due to the elastic reset force of the ratchet reset spring.
[0016] Preferably, the ratchet toggle plate is rotatably connected to the electric actuator mounting bracket via a toggle plate rotating shaft, and the electric actuator mounting bracket is used to mount the electric actuator assembly;
[0017] A toggle plate return spring is installed on the toggle plate rotating shaft. When the pawl toggle plate rotates towards the unlocking position, the toggle plate return spring has elastic potential energy.
[0018] During electric unlocking, the pawl toggle plate is pushed by the electric opening rocker arm and rotates. The toggle plate return spring is compressed and starts to accumulate elastic potential energy. After the electric unlocking is completed, when the motor resets, the motor rotates in the reverse direction, driving the worm to rotate in the reverse direction, and then driving the electric opening worm gear and the electric opening rocker arm to rotate in the reverse direction. The electric opening rocker arm follows and resets. The pawl toggle plate can rotate to the reset position under the action of the elastic restoring force of the toggle plate return spring.
[0019] Preferably, a pawl return spring is installed on the pawl shaft. When the pawl is in the unlocking position, the pawl return spring has elastic potential energy. When the unlocking is completed, the motor resets and rotates, causing the pawl toggle plate to rotate in the reverse direction, canceling the external force applied to the force receiving column of the pawl. Then, under the action of the elastic restoring force, the pawl return spring drives the pawl to rotate towards the locking position to reset it.
[0020] Preferably, a lock body buffer block is also provided in the cargo box door lock for a pickup truck. Correspondingly, the outer surface area of the ratchet wheel has a plastic coating layer, and the lock body buffer block abuts against the plastic coating layer of the ratchet wheel. When the ratchet wheel rotates, the lock body buffer block can generate frictional force with the surface of the ratchet wheel to reduce the rotation speed of the ratchet wheel and achieve the buffering effect during the locking or unlocking process.
[0021] Preferably, a lock housing is provided on the outer periphery of the ratchet wheel and the pawl. The shape of the lock housing is square. There is a cavity inside the lock housing. The ratchet wheel and the end where the ratchet wheel meshes with the pawl are located inside the cavity. The pawl shaft is rotatably connected to the side wall of the lock housing.
[0022] Preferably, the cargo box door lock for a pickup truck is used as an outer door lock for the cargo box. At both sides of one end of the lock housing, extension plates extend outwards respectively. Through holes are provided on each extension plate. The ratchet wheel shaft is rotatably connected to the electric actuator mounting bracket. Corresponding to each through hole on the electric actuator mounting bracket, lock body mounting holes are respectively provided. Each group of lock body mounting holes and through holes are used to connect with the cargo box door. The electric actuator mounting bracket is detachably connected to the lock housing. A lock groove is provided at the other end of the lock housing. The ratchet wheel is located at one end of the lock housing close to the lock groove. The lock body buffer block is arranged inside the lock housing, and both ends of the lock body buffer block abut against the electric actuator mounting bracket and the inner wall of the lock housing respectively.
[0023] Preferably, the cargo box door lock for a pickup truck is used as an inner door lock for the cargo box. On both sides of one end of the lock case, extension plates extend outwards respectively, and through holes are formed in each extension plate; the extension plates are detachably connected to the lock body mounting plate, and the ratchet shaft is rotatably connected to the lock body mounting plate facing the lock case; corresponding to each through hole on the lock body mounting plate, lock body mounting holes are respectively formed, and each group of lock body mounting holes and through holes are used for connecting with the cargo box door; the electric actuator mounting bracket is arranged on one side of the lock case away from the lock body mounting plate, and the electric actuator mounting bracket is detachably connected to the extension plate; a lock groove is arranged at the position of the lock body mounting plate corresponding to the lock case, and the ratchet is located at one end of the lock case close to the lock groove; the lock body buffer block is arranged in the lock case, and both ends of the lock body buffer block are abutted against the lock body mounting plate and the inner wall of the lock case respectively.
[0024] The technical solution of the present utility model has the following beneficial effects: In the present utility model, the rotation directions of the ratchet and the pawl are changed from the same rotation plane to an included angle between the rotation plane of the ratchet and the rotation plane of the pawl, so as to reduce the space occupied by the internal matching structure of the lock body, and thus reduce the size of the lock body; by using a pawl dial plate that can be driven to rotate by an external force, the rotation of the pawl towards the unlocking position can be realized, which simplifies the part structure, reduces the number of parts, reduces the weight of the lock body, and reduces the total part cost; at the same time, during assembly, only the positions of the rotating shafts of each rotating part need to be determined, which can ensure the matching accuracy of the operation of each structure after assembly, simplifies the assembly difficulty, saves the assembly time, and improves the assembly efficiency and assembly quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the present utility model will be further described in detail below with reference to the drawings, where:
[0026] Figure 1 It is a schematic diagram of the overall structure of the cargo box door lock for a pickup truck according to Embodiment 1 of the present utility model.
[0027] Figure 2 It is a schematic diagram of the overall bottom structure of the cargo box door lock for a pickup truck according to Embodiment 1 of the present utility model.
[0028] Figure 3 It is a schematic diagram of the internal structure of the cargo box door lock for a pickup truck according to Embodiment 1 of the present utility model.
[0029] Figure 4 It is a schematic diagram of the internal bottom structure of the cargo box door lock for a pickup truck according to Embodiment 1 of the present utility model.
[0030] Figure 5 It is a schematic diagram of the overall structure of the cargo box door lock for a pickup truck according to Embodiment 2 of the present utility model.
[0031] Figure 6 This is a schematic diagram of the overall bottom structure of a cargo door lock for a pickup truck according to Embodiment 2 of the utility model.
[0032] Figure 7 This is a schematic diagram of the internal structure of a cargo door lock for a pickup truck according to Embodiment 2 of the utility model.
[0033] Figure 8 The figure is a schematic diagram of the partial internal structure of a cargo door lock for a pickup truck according to the second embodiment of the utility model.
[0034] Figure 9 The figure is a schematic diagram of the partial internal structure of a cargo door lock for a pickup truck according to the second embodiment of the utility model.
[0035] Figure 10 This is a schematic diagram of the relative position relationship of various components when the cargo door lock for a pickup truck according to the second embodiment of the utility model is unlocked.
[0036] Explanation of the reference numerals in the accompanying drawings: 100, electric actuator assembly; 101, motor; 102, worm; 201, electric open worm wheel; 202, electric open rocker arm; 203, ratchet toggle plate; 204, force-bearing end; 205, force-applying end; 206, toggle plate rotating shaft; 207, toggle plate reset spring; 301, ratchet; 302, ratchet shaft; 303, ratchet reset spring; 401, ratchet; 402, ratchet shaft; 403, ratchet reset spring; 404, force-bearing column; 501, electric actuator mounting bracket; 502, lock body mounting plate; 503, lock shell; 504, lock groove; 600, lock body buffer block. DETAILED DESCRIPTION
[0037] In order to better understand the purpose, structure and function of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings.
[0038] The utility model can be applied to pickup truck cargo box locks, and solves the technical problem in the prior art that pickup truck cargo box locks have a complex structure and many parts, which leads to a large lock body size.
[0039] The cargo box door lock for a pickup truck disclosed by the present utility model has the following technical effects: The present utility model adopts a brand-new mechanism. Compared with the common cooperation mode of a ratchet wheel and a pawl, the rotation directions of the ratchet wheel and the pawl are changed from the same rotation plane to an included angle between the rotation plane of the ratchet wheel and the rotation plane of the pawl, thereby being able to reduce the space occupied by the internal cooperation structure of the lock body, and further reducing the size of the lock body. At the same time, due to the improvement of the relative positions of the ratchet wheel and the pawl, it provides a basis for the integration of the lock body and the electric actuator, and realizes the integration of the lock body and the electric actuator. The present utility model uses an electric actuator to drive the pawl dial plate to rotate, which can not only realize the rotation of the pawl towards the unlocking position, simplify the part structure, reduce the number of parts, reduce the weight of the lock body, and reduce the total part cost. At the same time, during assembly, only the positions of the rotating shafts of each rotating part need to be determined, which can ensure the cooperation accuracy of the operation of each structure after assembly, simplify the assembly difficulty, save the assembly time, and improve the assembly efficiency and assembly quality.
[0040] In order to further elaborate on the structure of the present utility model, the present utility model discloses the following application embodiments.
[0041] Embodiment 1
[0042] Please refer to Figures 1 to 4 , based on the above-mentioned solved technical problems, this embodiment discloses a cargo box door lock for a pickup truck, which is used as an outer door lock structure of the cargo box, is installed on the cargo box door, and can be locked or unlocked from the outside of the cargo box. It includes a ratchet wheel 301 and a pawl 401. The ratchet wheel 301 and the pawl 401 can rotate around a ratchet shaft 302 and a pawl shaft 402 respectively. A ratchet return spring 303 is installed on the ratchet shaft 302. When the ratchet wheel 301 is in the locked position, the ratchet return spring 303 has elastic potential energy. The pawl 401 meshes with the ratchet wheel 301, and the pawl 401 can prevent the ratchet wheel 301 from rotating towards the unlocking position. There is an included angle between the rotation plane of the ratchet wheel 301 and the rotation plane of the pawl 401;
[0043] Please refer to Figures 1 to 3 , the cargo box door lock for a pickup truck further includes an electric actuator assembly 100, which can drive the pawl dial plate 203 to rotate. The rotation plane of the pawl dial plate 203 is parallel to the rotation plane of the ratchet wheel 301. When unlocking, the pawl dial plate 203 rotates, pushing the pawl 401 to rotate towards the unlocking position, so that the pawl 401 disengages from the ratchet wheel 301, and the ratchet wheel 301 can rotate to the unlocking position under the elastic restoring force of the ratchet return spring 303.
[0044] Please refer to Figure 3The pawl toggle plate 203 includes a force-applying end 205, and correspondingly, a force-bearing column 404 is provided on the pawl 401, and the force-bearing column 404 extends from the surface of the pawl 401 toward the direction away from the surface of the pawl 401; when the pawl toggle plate 203 rotates, the force-applying end 205 can push the force-bearing column 404, so that the pawl 401 rotates toward the unlocking position, so that the pawl 401 is disengaged from the ratchet 301, and the ratchet 301 can rotate to the unlocking position under the elastic reset force of the ratchet reset spring 303.
[0045] See also Figure 3 The electric actuator assembly 100 includes a motor 101, a worm 102 is fixed to the output end of the motor 101, and the electric actuator assembly 100 also includes an electric open worm wheel 201, the electric open worm wheel 201 is meshed with the worm 102, and the motor 101 can drive the worm 102 to rotate, thereby driving the electric open worm wheel 201 to rotate; an electric open rocker arm 202 is coaxially arranged with the electric open worm wheel 201, and the electric open rocker arm 202 can rotate synchronously with the electric open worm wheel 201, and correspondingly, a force end 204 is also arranged on the ratchet plate 203, and when the electric open rocker arm 202 rotates, the electric open rocker arm 202 can abut against the force end 204 and push the ratchet plate 203 to rotate.
[0046] Specifically, a protective shell is disposed on the outer periphery of the electric actuator assembly 100 to provide structural protection and functional integration for the internal motor 101 , worm 102 , and worm wheel.
[0047] See also Figure 3 The ratchet toggle plate 203 is rotatably connected to the electric actuator mounting bracket 501 through the toggle plate shaft 206, and the electric actuator mounting bracket 501 is used to install the electric actuator assembly 100; a toggle plate return spring 207 is installed on the toggle plate shaft 206, and when the ratchet toggle plate 203 rotates toward the unlocking position, the toggle plate return spring 207 has elastic potential energy.
[0048] See also Figure 3 and Figure 4 A pawl reset spring 403 is installed on the pawl shaft 402. When the pawl 401 is in the unlocking position, the pawl reset spring 403 has elastic potential energy. When the unlocking is completed, the motor 101 resets and rotates, causing the pawl toggle plate 203 to rotate in the opposite direction, canceling the external force applied to the force column 404 of the pawl 401, and then the pawl reset spring 403 drives the pawl 401 to rotate toward the upper locking position under the action of the elastic reset force, so that it is reset.
[0049] A lock housing 503 is provided on the outer peripheries of the ratchet wheel 301 and the pawl 401. The lock housing 503 has a square shape. The lock housing 503 has a cavity inside. The ratchet wheel 301 and one end of the ratchet wheel 301 engaged with the pawl 401 are located inside the cavity. The pawl shaft 402 is rotatably connected to the side wall of the lock housing 503.
[0050] Please refer to Figure 1 and Figure 2 , the cargo box door lock for the pickup truck is an external cargo box door lock. Extension plates extend outwardly from the two opposite side edges of one end of the lock housing 503 respectively. Through holes are formed in each extension plate. The ratchet shaft 302 is rotatably connected to both the electric actuator mounting bracket 501 and the lock housing 503 at the same time. Lock body mounting holes are respectively formed in the electric actuator mounting bracket 501 corresponding to each through hole. Each group of lock body mounting holes and through holes are used for connecting with the cargo box door. The electric actuator mounting bracket 501 is detachably connected to the lock housing 503. A lock groove 504 is formed at the other end of the lock housing 503. The ratchet wheel 301 is located at one end of the lock housing 503 close to the lock groove 504.
[0051] Please refer to Figure 2 and Figure 4 , a lock body buffer block 600 is further provided inside the lock housing 503. Both ends of the lock body buffer block 600 are respectively abutted against the electric actuator mounting bracket 501 and the inner wall of the lock housing 503. Correspondingly, a plastic coating layer is provided on the outer surface area of the ratchet wheel 301. The lock body buffer block 600 is abutted against the plastic coating layer of the ratchet wheel 301. When the ratchet wheel 301 rotates, the lock body buffer block 600 can generate frictional force with the surface of the ratchet wheel 301 to reduce the rotation speed of the ratchet wheel 301 and achieve the buffering effect during the locking or unlocking process.
[0052] The working principle of this embodiment is: when the ratchet 301 and the pawl 401 are both in the locked position, the pawl 401 abuts against the ratchet 301, and the pawl 401 can prevent the ratchet 301 from rotating toward the unlocked position; when electrically unlocked, the motor 101 rotates, and drives the electric opening worm wheel 201 to rotate through the worm 102, thereby driving the electric opening rocker arm 202 to rotate, and pushing the pawl toggle plate 203 to rotate, the pawl toggle plate 203 contacts and drives the pawl 401 to rotate along the pawl shaft 402, and at the same time disengages from the ratchet 301, and the ratchet 301 is released due to the ratchet reset spring The pawl toggle plate 203 rotates to the unlocked position under the action of the elastic reset force of the spring 303; the pawl toggle plate 203 is pushed by the electric open rocker arm 202 to rotate, and the toggle plate reset spring 207 is squeezed and begins to accumulate elastic potential energy. After the electric unlocking is completed, when the motor 101 is reset, the motor 101 rotates in the opposite direction, driving the worm 102 to rotate in the opposite direction, and then driving the electric open worm wheel 201 and the electric open rocker arm 202 to rotate in the opposite direction, and the electric open rocker arm 202 follows the reset, and the pawl toggle plate 203 can rotate to the reset position under the action of the elastic reset force of the toggle plate reset spring 207.
[0053] This embodiment adopts a brand-new mechanism. Compared with the common matching mode of the ratchet 301 and the pawl 401, the rotation direction of the ratchet 301 and the pawl 401 is changed from the same rotation plane to an angle between the rotation plane of the ratchet 301 and the rotation plane of the pawl 401, thereby reducing the space occupied by the matching structure inside the lock body, thereby reducing the size of the lock body; the electric actuator 100 is used to drive the pawl toggle plate 203 to rotate, which can realize the rotation of the pawl 401 toward the unlocking position, simplify the part structure, reduce the number of parts, reduce the weight of the lock body, and reduce the total part cost; at the same time, during assembly, it is only necessary to determine the position of the rotating shaft of each rotating component, which can ensure the matching accuracy of the operation of each structure after assembly, simplify the difficulty of assembly, save assembly time, and improve assembly efficiency and assembly quality.
[0054] Embodiment 2
[0055] See also Figures 5 to 10 Based on the technical problems solved above, the utility model discloses a cargo box door lock for a pickup truck, which is used as a cargo box inner door lock structure, is used to be installed on the cargo box door, and can be locked or unlocked from the inside of the cargo box, including a ratchet 301 and a pawl 401, the ratchet 301 and the pawl 401 can rotate around a ratchet shaft 302 and a pawl shaft 402 respectively, a ratchet reset spring 303 is installed on the ratchet shaft 302, when the ratchet 301 is in the locked position, the ratchet reset spring 303 has elastic potential energy, the pawl 401 is engaged with the ratchet 301, the pawl 401 can prevent the ratchet 301 from rotating toward the unlocked position, and there is an angle between the rotating surface of the ratchet 301 and the rotating surface of the pawl 401;
[0056] See also Figures 5 to 7 The cargo door lock for a pickup truck also includes an electric actuator assembly 100, which can drive the pawl toggle plate 203 to rotate; the rotating surface of the pawl toggle plate 203 is parallel to the rotating surface of the ratchet 301; when unlocking, the pawl toggle plate 203 rotates, pushing the pawl 401 to rotate toward the unlocking position, so that the pawl 401 is disengaged from the ratchet 301, and the ratchet 301 can rotate to the unlocking position under the elastic reset force of the ratchet reset spring 303.
[0057] See also Figures 5 to 8 The pawl toggle plate 203 includes a force-applying end 205, and correspondingly, a force-bearing column 404 is provided on the pawl 401, and the force-bearing column 404 extends from the surface of the pawl 401 toward the direction away from the surface of the pawl 401; when the pawl toggle plate 203 rotates, the force-applying end 205 can push the force-bearing column 404, so that the pawl 401 rotates toward the unlocking position, so that the pawl 401 is disengaged from the ratchet 301, and the ratchet 301 can rotate to the unlocking position under the elastic reset force of the ratchet reset spring 303.
[0058] See also Figure 8 The electric actuator assembly 100 includes a motor 101, a worm 102 is fixed to the output end of the motor 101, and the electric actuator assembly 100 also includes an electric open worm wheel 201, the electric open worm wheel 201 is meshed with the worm 102, and the motor 101 can drive the worm 102 to rotate, thereby driving the electric open worm wheel 201 to rotate; an electric open rocker arm 202 is coaxially arranged with the electric open worm wheel 201, and the electric open rocker arm 202 can rotate synchronously with the electric open worm wheel 201, and correspondingly, a force end 204 is also arranged on the ratchet plate 203, and when the electric open rocker arm 202 rotates, the electric open rocker arm 202 can abut against the force end 204 and push the ratchet plate 203 to rotate.
[0059] Specifically, a protective shell is disposed on the outer periphery of the electric actuator assembly 100 to provide structural protection and functional integration for the internal motor 101 , worm 102 , and worm wheel.
[0060] See also Figure 7 The ratchet toggle plate 203 is rotatably connected to the electric actuator mounting bracket 501 through the toggle plate shaft 206, and the electric actuator mounting bracket 501 is used to install the electric actuator assembly 100; a toggle plate return spring 207 is installed on the toggle plate shaft 206, and when the ratchet toggle plate 203 rotates toward the unlocking position, the toggle plate return spring 207 has elastic potential energy.
[0061] See also Figure 7A pawl reset spring 403 is installed on the pawl shaft 402. When the pawl 401 is in the unlocking position, the pawl reset spring 403 has elastic potential energy. When the unlocking is completed, the motor 101 resets and rotates, causing the pawl toggle plate 203 to rotate in the opposite direction, canceling the external force applied to the force column 404 of the pawl 401, and then the pawl reset spring 403 drives the pawl 401 to rotate toward the upper locking position under the action of the elastic reset force, so that it is reset.
[0062] See also Figure 6 and Figure 9 The cargo door lock for a pickup truck is also provided with a lock body buffer block 600. Correspondingly, the outer surface area of the ratchet 301 has a plastic coating layer, and the lock body buffer block 600 abuts against the plastic coating layer of the ratchet 301. When the ratchet 301 rotates, the lock body buffer block 600 can generate friction with the surface of the ratchet 301 to reduce the rotation speed of the ratchet 301 and achieve a buffering effect in the locking or unlocking process.
[0063] See also Figures 5 to 6 A lock shell 503 is arranged on the periphery of the ratchet 301 and the pawl 401, and the lock shell 503 is square in shape; the lock shell 503 has a cavity inside, and the ratchet 301 and the end of the ratchet 301 that meshes with the pawl 401 are located in the cavity; the pawl shaft 402 is rotatably connected to the side wall of the lock shell 503. Extension plates are respectively extended outward from the two opposite side edges of one end of the lock shell 503, and each extension plate is provided with a through hole; the extension plate is detachably connected to the lock body mounting plate 502, and the ratchet shaft 302 is rotatably connected to the lock body mounting plate 502 facing the lock shell 503; the lock body mounting plate 502 is provided with lock body mounting holes corresponding to each through hole, and each group of lock body mounting holes and through holes are used to connect with the cargo door; the electric actuator mounting bracket 501 is arranged on the The lock shell 503 is located on one side away from the lock body mounting plate 502, and the electric actuator mounting bracket 501 is detachably connected to the extension plate; the lock body mounting plate 502 is provided with a locking groove 504 at the position corresponding to the lock shell 503, and the ratchet 301 is located at one end of the lock shell 503 close to the locking groove 504; the lock body buffer block 600 is arranged in the lock shell 503, and the two ends of the lock body buffer block 600 are respectively abutted against the lock body mounting plate 502 and the inner wall of the lock shell 503.
[0064] The working principle of this embodiment is: when the ratchet 301 and the pawl 401 are both in the locked position, the pawl 401 abuts against the ratchet 301, and the pawl 401 can prevent the ratchet 301 from rotating toward the unlocked position; when electrically unlocked, refer to Figure 10, the motor 101 rotates, and drives the electric open worm wheel 201 to rotate through the worm 102, thereby driving the electric open rocker arm 202 to rotate, and pushing the pawl toggle plate 203 to rotate, the pawl toggle plate 203 contacts and drives the pawl 401 to rotate along the pawl shaft 402, and at the same time disengages from the ratchet 301, and the ratchet 301 rotates to the unlocking position due to the elastic reset force of the ratchet reset spring 303; the pawl toggle plate 203 is pushed by the electric open rocker arm 202 to rotate, and the toggle plate reset spring 207 is squeezed and begins to accumulate elastic potential energy. After the electric unlocking is completed, when the motor 101 is reset, the motor 101 rotates in the opposite direction, driving the worm 102 to rotate in the opposite direction, and then driving the electric open worm wheel 201 and the electric open rocker arm 202 to rotate in the opposite direction, and the electric open rocker arm 202 follows the reset, and the pawl toggle plate 203 can rotate to the reset position under the elastic reset force of the toggle plate reset spring 207.
[0065] This embodiment adopts a brand-new mechanism. Compared with the common matching mode of the ratchet 301 and the pawl 401, the rotation direction of the ratchet 301 and the pawl 401 is changed from the same rotation plane to an angle between the rotation plane of the ratchet 301 and the rotation plane of the pawl 401, thereby reducing the space occupied by the matching structure inside the lock body, thereby reducing the size of the lock body; the electric actuator 100 is used to drive the rotating pawl toggle plate 203, which can realize the rotation of the pawl 401 toward the unlocking position, simplify the part structure, reduce the number of parts, reduce the weight of the lock body, and reduce the total part cost; at the same time, during assembly, it is only necessary to determine the position of the rotating shaft of each rotating component, which can ensure the matching accuracy of the operation of each structure after assembly, simplify the difficulty of assembly, save assembly time, and improve assembly efficiency and assembly quality.
[0066] It is understood that the present utility model is described through some specific embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent substitutions can be made to these features and specific embodiments. Under the teaching of the present utility model, these features and specific embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. The specific embodiments described in the present utility model are a part of the specific embodiments of the present utility model, rather than all of the specific embodiments. Generally, the components of the specific embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the specific embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected specific embodiments of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed here. Based on the specific embodiments in the present utility model, all other specific embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
Claims
1. A cargo box door lock for a pickup truck, which is used to be installed on the cargo box door, and is characterized in that, It includes a ratchet and a pawl, and the ratchet and the pawl can rotate around the ratchet shaft and the pawl shaft respectively. A ratchet reset spring is installed on the ratchet shaft. When the ratchet is in the locked position, the ratchet reset spring has elastic potential energy, and the pawl is meshed with the ratchet. The pawl can prevent the ratchet from rotating toward the unlocked position, and there is an angle between the rotating surface of the ratchet and the rotating surface of the pawl; the cargo box door lock for the pickup truck also includes a pawl toggle plate that can be driven to rotate by an external force, and the rotating surface of the pawl toggle plate is parallel to the rotating surface of the ratchet; when unlocking, the pawl toggle plate rotates to push the pawl to rotate toward the unlocked position, so that the pawl is disengaged from the ratchet, and the ratchet can rotate to the unlocked position under the elastic reset force of the ratchet reset spring.
2. The cargo box door lock for a pickup truck according to claim 1, characterized in that, The pawl torsion plate includes a force-applying end, and correspondingly, a force-bearing column is provided on the pawl, and the force-bearing column extends from the pawl surface toward the direction away from the pawl surface; when the pawl torsion plate rotates, the force-applying end can push the force-bearing column, so that the pawl rotates toward the unlocking position, so that the pawl is disengaged from the ratchet, and the ratchet can rotate to the unlocking position under the elastic reset force of the ratchet reset spring.
3. The cargo box door lock for a pickup truck according to claim 2, characterized in that, The ratchet toggle plate is driven to rotate by the electric actuator assembly; the electric actuator assembly includes a motor, a worm is fixed to the output end of the motor, the electric actuator assembly also includes an electric worm wheel, the electric worm wheel is meshed with the worm, the motor can drive the worm to rotate, and then drive the electric worm wheel to rotate; an electric rocker arm is coaxially arranged with the electric worm wheel, and the electric rocker arm can rotate synchronously with the electric worm wheel, and correspondingly, a force-bearing end is also arranged on the ratchet toggle plate, and when the electric rocker arm rotates, the electric rocker arm can abut against the force-bearing end and push the ratchet toggle plate to rotate.
4. The cargo box door lock for a pickup truck according to claim 3, characterized in that, The ratchet toggle plate is rotatably connected to the electric actuator mounting bracket via a toggle plate shaft, and the electric actuator mounting bracket is used to install the electric actuator assembly; a toggle plate return spring is installed on the toggle plate shaft, and when the ratchet toggle plate rotates toward the unlocking position, the toggle plate return spring has elastic potential energy.
5. The cargo box door lock for a pickup truck according to claim 4, characterized in that, A pawl return spring is installed on the pawl shaft, and when the pawl is in the unlocking position, the pawl return spring has elastic potential energy.
6. The cargo box door lock for a pickup truck according to claim 5, characterized in that, The cargo door lock for a pickup truck is also provided with a lock body buffer block, and correspondingly, the outer surface area of the ratchet has a plastic coating layer, and the lock body buffer block abuts against the plastic coating layer of the ratchet.
7. The cargo box door lock for a pickup truck according to claim 6, wherein, A lock shell is arranged on the periphery of the ratchet and the pawl, and the lock shell is square in shape; a cavity is arranged inside the lock shell, and the ratchet and one end of the ratchet and the pawl meshing are located in the cavity; the pawl shaft is rotatably connected to the side wall of the lock shell.
8. The cargo box door lock for a pickup truck according to claim 7, characterized in that, For use as an outer door lock of a cargo box, extension plates extend outwardly from opposite sides of one end of the lock housing respectively, and through holes are formed in each extension plate; the ratchet shaft is rotatably connected to the electric actuator mounting bracket, and lock body mounting holes are respectively formed in the electric actuator mounting bracket corresponding to the respective through holes, and each group of lock body mounting holes and through holes are used for connecting with the cargo box door; the electric actuator mounting bracket is detachably connected to the lock housing; a lock groove is formed at the other end of the lock housing, and the ratchet is located at one end of the lock housing close to the lock groove; the lock body buffer block is arranged in the lock housing, and both ends of the lock body buffer block are abutted against the electric actuator mounting bracket and the inner wall of the lock housing respectively.
9. The cargo box door lock for a pickup truck according to claim 7, characterized in that, For use as an inner door lock of a cargo box, extension plates extend outwardly from opposite sides of one end of the lock housing respectively, and through holes are formed in each extension plate; the extension plates are detachably connected to the lock body mounting plate, and the ratchet shaft is rotatably connected to the lock body mounting plate facing the lock housing; lock body mounting holes are respectively formed in the lock body mounting plate corresponding to the respective through holes, and each group of lock body mounting holes and through holes are used for connecting with the cargo box door; the electric actuator mounting bracket is arranged on one side of the lock housing away from the lock body mounting plate, and the electric actuator mounting bracket is detachably connected to the extension plate; a lock groove is arranged at the position of the lock body mounting plate corresponding to the lock housing, and the ratchet is located at one end of the lock housing close to the lock groove; the lock body buffer block is arranged in the lock housing, and both ends of the lock body buffer block are abutted against the lock body mounting plate and the inner wall of the lock housing respectively.