Electric tail door lock device

Abstract

According to the technical scheme, the electric tail door lock device is characterized by comprising a lock shell base, a base opening A is formed in the lock shell base, a spring bolt is arranged on the lock shell base, the spring bolt is close to the base opening A, a spring bolt groove capable of being clamped with and separated from a lock catch is formed in the spring bolt, a blocking piece is arranged on the lock shell base, and the blocking piece is arranged on the lock shell base. One end of the blocking piece is movably connected with the lock shell base, the blocking piece is provided with a protrusion C, the protrusion C is close to the spring bolt, the spring bolt is provided with a protrusion A with a hole, the blocking piece is provided with a protrusion B with a hole, and the protrusion A and the protrusion B are connected through a spring A. The spring A is arranged so that the spring bolt and the blocking piece can be in linkage. When the lock catch enters the lock tongue, the blocking piece can rapidly respond to abut against the lock tongue to fix the lock catch, the single motor is used for driving the cam to stir the blocking piece, unlocking of the lock can be completed, the transmission structure is simple, cost is low, the integration degree of parts of the door lock is high, and the structure is compact.

Description

Technical Field

[0001] This utility model relates to the field of automotive door lock technology, and more specifically to an electric tailgate lock device. Background Technology

[0002] Currently, with the continuous improvement of people's living standards, cars have become a daily means of transportation. Therefore, against this backdrop, more and more car models are beginning to be equipped with self-closing locks. Self-closing locks are equipped with corresponding mechanical structures, such as latches and buckles. When the car door is closed, the mechanical structure will automatically lock to ensure that the door remains closed and prevent accidental opening.

[0003] However, the existing technologies mentioned above still have some drawbacks. The existing self-locking locks require two motors and two sets of transmission mechanisms to achieve the unlocking and locking functions. They have many parts, are large in size and weight, and have a complex structure, complicated manufacturing process, and high cost. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides an electric tailgate lock device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a lock housing base, the lock housing base having a base opening A, a lock tongue, and a lock tongue groove near the base opening A that can engage and disengage with a latch. The lock housing base also includes a baffle plate, one end of which is movably connected to the lock housing base. The baffle plate has a protrusion C near the lock tongue. The lock tongue has an opening protrusion A, and the baffle plate has an opening protrusion B. Protrusion A and protrusion B are connected by a spring A.

[0006] The present invention is further configured such that: the baffle is provided with an adjustment device, and the adjustment device is close to the spring A.

[0007] The present invention is further configured such that: the adjustment device includes an adjustment track, an adjustment gear, a spring C, and a fixing protrusion D, and the lock housing base is provided with an adjustment opening B adapted to the adjustment gear.

[0008] The present invention is further configured such that: the lock housing base is provided with a driving device, the driving device includes a motor and a cam, the motor and the cam are movably connected, the movable connection is a worm gear connection, and the cam protrusion is close to the baffle.

[0009] The present invention is further configured such that a spring B is provided at the center of the cam.

[0010] The fundamental utility model is further configured such that: the lock housing base is provided with a stop block, and the stop block is close to the extension line of the tangent of the movement trajectory of the lock tongue.

[0011] The present invention is further configured such that: the baffle is provided with a mounting groove, the mounting groove is provided with a toggle piece, and the toggle piece and the baffle are on the same axis of motion.

[0012] The present invention is further configured such that the latch, the baffle, and the block are all provided with anti-collision shells.

[0013] The present invention is further configured such that the collision shell of the locking tongue is provided with an opening.

[0014] In summary, this utility model has the following beneficial effects: the setting of spring A enables the linkage between the latch and the stop plate, so that when the latch enters the latch, the stop plate will quickly respond and abut against the latch to fix the latch. The unlocking of this utility model can be completed by using a single motor to drive the cam to move the stop plate. The transmission structure is simple, the cost is low, the door lock components are highly integrated, and the structure is compact. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0016] Figure 2 This is a schematic diagram of the internal structure of this embodiment;

[0017] Figure 3 This is a schematic diagram of the baffle structure in this embodiment;

[0018] Figure 4 This is a side sectional view at point A in this embodiment;

[0019] Figure 5 This is a top sectional view at point A in this embodiment;

[0020] Reference numerals: 1. Lock base; 11. Base opening A; 12. Stop; 13. Adjustment opening B; 2. Lock tongue; 21. Protrusion A; 3. Stop plate; 31. Adjustment device; 311. Adjustment track; 312. Adjustment gear; 313. Spring C; 314. Fixed protrusion D; 32. Protrusion B; 33. Protrusion C; 34. Mounting groove; 341. Actuating piece; 4. Spring A; 5. Drive device; 51. Cam; 511. Spring B; 6. Anti-collision housing; 61. Opening. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] This embodiment discloses an electric tailgate lock device, such as Figures 1 to 5As shown, the lock includes a lock housing base 1 with a base opening A11 and a latch 2. The latch 2 has a latch groove near the base opening A11, which can engage and disengage with the latch. The lock housing base 1 has a baffle 3, one end of which is movably connected to the lock housing base 1. The baffle 3 has a protrusion C33 near the latch 2. The latch 2 has a protrusion A21 with an opening 61, and the baffle 3 has a protrusion B32 with an opening 61. The protrusions A21 and B32 are connected by a spring A4. The spring A4 provides a mutual tension between the latch 2 and the stop plate 3, ensuring that any movement of either the latch 2 or the stop plate 3 will cause the other component to move. When the latch engages with the latch 2, the stop plate 3 quickly responds, pressing against the latch 2 to secure it. The drive motor rotates the cam 51, actuating the stop plate 3. This breaks the support of the protrusion C33 on the latch 2, and the latch 2 and stop plate 3 reset under the elastic force of the spring A4. This allows for convenient and quick locking and unlocking. Furthermore, the force applied by the spring A4 is variable, resulting in less spring tension and friction between the latch 2 and the stop plate 3 when they contact each other, and less frictional loss during separation, thus extending the product's service life.

[0023] To further improve the design, the baffle 3 is equipped with an adjustment device 31, which is located near the spring A4. The adjustment device 31 allows for adjustment of the distance between the baffle 3 and the spring A4, enabling adjustment of the spring A4's extension and retraction. When the spring A4 ages and its elasticity decreases, the distance between the baffle 3 and the spring A4 can be reduced via the adjustment device 31, causing the spring A4 to stretch and increase its elasticity.

[0024] Further improvements include an adjustment track 31, an adjustment gear 312, a spring C313, and a fixing protrusion D314. The lock housing base 1 has an adjustment opening B13 corresponding to the adjustment gear 312. Rotating the adjustment gear 312 can retract the adjustment track 311. The fixing protrusion D314 is used to fix the adjustment gear 312. The spring C313 is located below the adjustment gear 312 and pushes the adjustment gear 312 to reset it.

[0025] Further improvements include a drive device 5 on the lock housing base 1. The drive device 5 includes a motor and a cam 51. The motor and cam 51 are movably connected via a worm gear connection. The protrusion of the cam 51 is close to the baffle 3. When the motor rotates, it drives the cam 51 to rotate. The rotation of the cam 51 pushes the baffle 3, causing it to rotate and disengage.

[0026] To further improve the design, a spring B511 is centrally located on the cam 51. The spring B511 applies a certain axial preload to the worm gear, ensuring appropriate meshing tightness from initial installation. This helps improve the transmission efficiency and accuracy of the worm gear, prevents tooth slippage or loosening during transmission, and ensures stable power transmission.

[0027] To further improve the system, the lock housing base 1 is provided with a stop 12, which is located near the extension line of the tangent of the movement trajectory of the latch 2. The stop 12 is used to limit the position of the baffle 3 so that the protrusion C33 is exactly at the dead point of the movement of the baffle 3 when the latch 2 contacts it, making the system more stable.

[0028] Further improvements include a mounting groove 34 for the baffle 3, and a toggle piece 341 mounted in the mounting groove 34. The toggle piece 341 moves along the same axis as the baffle 3. In special circumstances, such as a vehicle collision or emergency braking, the mechanical toggle piece 341, as a purely mechanical operation, provides the vehicle owner with a reliable emergency door-opening method. Manually moving the toggle piece allows occupants to manually control the movement of the baffle 3 to release the door's lock, ensuring their safety.

[0029] Furthermore, the locking tongue 2, the baffle 3, and the stop block 12 are all equipped with anti-collision shells 6. The anti-collision shells can reduce the impact on the device, thus extending its service life.

[0030] To further improve the design, the impact shell of the latch 2 is provided with an opening 61. The opening 61 allows the impact shell to undergo greater deformation, providing a longer buffer time when subjected to impact, thus further reducing the impact received by the latch 2.

[0031] Working principle of this utility model

[0032] When using this utility, when the latch enters the utility from the opening, it will contact and push the latch 2. The latch 2 will rotate under the action of the latch, causing the spring A4 to extend. The extended spring A4 will pull the baffle 3 to rotate synchronously, so that the protrusion C33 contacts and supports the latch 2, thereby realizing the automatic locking of the latch when it enters the utility.

[0033] During unlocking, a simple drive of the electrical components causes the cam 51, which is linked to the motor, to move the baffle 3, thereby changing the position of the baffle 3 and breaking its dead point. The latch 2 and the baffle 3 will rotate to their reset position under the force of the spring A4. The latch will also be pushed out as the latch 2 rotates. When the motor fails, the baffle 3 can also be easily and conveniently moved by the set toggle block to unlock.

[0034] When using the adjustment device 31, insert a screwdriver through the adjustment opening B13 and press down the adjustment gear 312. The adjustment gear 312 will disengage from the fixing protrusion D314. The adjustment gear 312 can rotate to drive the adjustment track 311 to retract and stretch the spring A4. After the adjustment is completed, slowly pull out the screwdriver. The adjustment gear 312 will reset under the elastic force of the spring C313 and be fixed by the fixing protrusion D314.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric tailgate lock device, comprising a lock housing base (1), wherein the lock housing base (1) is provided with a base opening A (11), characterized in that: The lock base (1) is provided with a latch (2), the latch (2) is close to the base opening A (11), the latch (2) is provided with a latch (2) groove that can engage and disengage with the lock buckle, the lock base (1) is provided with a baffle (3), one end of the baffle (3) is movably connected to the lock base (1), the baffle (3) is provided with a protrusion C (33), the protrusion C (33) is close to the latch (2), the latch (2) is provided with a protrusion A (21) with an opening (61), the baffle (3) is provided with a protrusion B (32) with an opening (61), the protrusion A (21) and the protrusion B (32) are connected by a spring A (4).

2. The electric tailgate lock device according to claim 1, characterized in that: The baffle (3) is provided with an adjustment device (31) which is close to the spring A (4).

3. The electric tailgate lock device according to claim 2, characterized in that: The adjustment device includes an adjustment track (311), an adjustment gear (312), a spring C (313), and a fixing protrusion D (314). The lock base (1) is provided with an adjustment opening B (13) adapted to the adjustment gear (312).

4. The electric tailgate lock device according to claim 1, characterized in that: The lock base (1) is provided with a drive device (5), which includes a motor and a cam (51). The motor and the cam (51) are movably connected. The movable connection is a worm gear connection. The protrusion of the cam (51) is close to the baffle (3).

5. An electric tailgate lock device according to claim 4, characterized in that: A spring B (511) is provided at the center of the cam (51).

6. The electric tailgate lock device according to claim 1, characterized in that: The lock base (1) is provided with a stop (12), which is close to the extension line of the tangent of the movement trajectory of the lock tongue (2).

7. The electric tailgate lock device according to claim 1, characterized in that: The baffle (3) is provided with a mounting groove (34), and the mounting groove (34) is provided with a toggle piece (341), which is on the same axis of motion as the baffle (3).

8. An electric tailgate lock device according to claim 6, characterized in that: The latch (2), baffle (3), and stop block (12) are all equipped with anti-collision shells (6).

9. An electric tailgate lock device according to claim 8, characterized in that: The locking tongue (2) is provided with an opening (61) in the collision shell.

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