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CN-224228442-U - Automatic unlocking preventing structure of door actuator

CN224228442UCN 224228442 UCN224228442 UCN 224228442UCN-224228442-U

Abstract

The utility model provides a prevent automatic unblock structure of lid door executor, includes shell, bottom, spring bolt, lockpin, spring bolt clearance fit is equipped with the spring in the guide cylinder that the shell set up between the bottom of spring bolt and lower extreme, the lockpin is driven by the motor that sets up in the shell, a cooperation is a Long Luogan in the pivot of motor, be equipped with the internal thread seat on the lockpin, the lockpin passes through internal thread seat and nylon screw thread cooperation, an "L" type linking arm is extended to one side of lockpin, the short arm end of "L" type linking arm sets up the lock round pin head, the up end of lock round pin head is the inclined plane.

Inventors

  • CHE JIAYONG
  • WEN YONG

Assignees

  • 重庆海德世拉索系统（集团）有限公司

Dates

Publication Date
20260512
Application Date
20250529

Claims (7)

  1. 1. The utility model provides a prevent automatic unblock structure of lid door executor, includes shell (1), bottom (2), spring bolt (3), lockpin (4), spring bolt (3) clearance fit is equipped with spring (5) in guide cylinder (11) that shell (1) set up between spring bolt (3) and bottom (2) of lower extreme, lockpin (4) are driven by motor (6) that set up in shell (1), wherein cooperate a ni Long Luogan (7) in the pivot of motor (6), be equipped with internal thread seat (40) on lockpin (4), lockpin (4) are through internal thread seat (40) and nylon screw (7) screw thread fit, one side of lockpin (4) extends an "L" linking arm (41), the short arm end of "L" linking arm (41) sets up lock round pin head (42), up end (421) of lock round pin head (42) are the inclined plane.
  2. 2. The automatic unlocking prevention structure of a door actuator according to claim 1, wherein the inclination angle of the upper end surface (421) of the locking pin head (42) is greater than 3 °.
  3. 3. The automatic unlocking prevention structure of a door actuator according to claim 1, wherein the inner wall (111) of the guide cylinder (11) is provided with a guide groove (12) which is symmetrical in center, the outer circular wall of the lock tongue (3) is provided with a guide boss (31) which is symmetrical in center, the bottom cover (2) is provided with an annular guide bevel edge (22), a locking channel (223) and an unlocking channel (224) of the guide boss (31) are formed between the annular guide bevel edge (22) and the lower end of the guide groove (12), the lower end of the lock tongue (3) is provided with an opening (32), two sides of the opening (32) are provided with locking parts (321), and the locking parts (321) move to the upper end face (421) of a lock pin head (42) of the lock pin (4) to form locking.
  4. 4. A door actuator automatic unlocking prevention structure according to claim 3, wherein the annular guide bevel edge (22) comprises a guide locking bevel edge (221) and a guide unlocking bevel edge (222), and a locking channel (223) and an unlocking channel (224) of the guide boss (31) are formed between the guide locking bevel edge (221) and the guide unlocking bevel edge (222) and the lower end of the guide groove (12) respectively.
  5. 5. The automatic unlocking prevention structure of a door actuator according to claim 4, wherein the annular guide bevel edge (22) is provided with grease, and the bottom of the guide locking bevel edge (221) is provided with an oil storage tank (225).
  6. 6. The structure for preventing automatic unlocking of a door actuator according to claim 3, wherein the guide boss (31) is an isosceles triangle or an isosceles trapezoid.
  7. 7. The automatic unlocking prevention structure of a door actuator according to claim 1, wherein a spring mounting post (21) is provided on the bottom cover (2), and a spring (5) is mounted on the spring mounting post (21).

Description

Automatic unlocking preventing structure of door actuator Technical Field The utility model relates to the field of door actuators, in particular to an automatic unlocking preventing structure of a door actuator. Background The door actuator is a device for opening or closing the fuel door or the charging door of the automobile, and the actuation modes thereof are divided into two modes, namely, the first mode is that the lock tongue reciprocates along the circumferential direction, and the second mode is that the lock tongue continuously rotates along the circumferential direction. In the prior art, a second actuation mode of door actuator is adopted, as in the invention patent of automobile energy source door actuator with application publication number CN112096197A, in order to open the door when the motor fails or the vehicle is abnormally powered off, the upper part of the lock pin can be manually toggled to unlock the door, so that the door is opened, the emergency unlocking function is realized, therefore, the screw thread matching of the screw rod and the lock pin is not allowed to be too tight, namely, the screw thread pair is not capable of self locking, the screw rod and the lock pin are made of plastic, the helix angle is about 17 degrees, three-head threads are required, and the screw rod can be easily reversely rotated only by toggling the lock pin, thereby realizing the manual unlocking. However, the structure has the problem of automatic unlocking of the cover door, as shown in fig. 7, the motor rotates to provide power, the driving screw rotates to drive the lock pin 4, the motor circular motion is converted into the linear motion of the lock pin 4, the lock pin moves to the bottom of the lock pin 3, the lock pin head 42 of the lock pin 4 butts against the locking part 321 of the lock pin 3, the displacement of the lock pin 3 is limited, the locking is realized, then the motor is powered off and no longer provides power, when the cover door is continuously pressed externally, the lock pin 3 is subjected to downward pressure F, and when the locking part 321 of the lock pin 3 contacts with the lock pin head 42 of the lock pin 4, the lock pin head 42 is stressed to incline downwards along the direction of the force, the component F1 of the pressure F continuously makes the lock pin 4 back to drive the screw to rotate reversely, and the lock pin head 42 of the lock pin 4 completely exits from the area below the locking part 321 of the lock pin 3 after multiple times of pressing, and the automatic unlocking phenomenon occurs. Disclosure of Invention The utility model provides an automatic unlocking preventing structure of a door actuator, which changes the upper end face of a lock pin head of a lock pin into an inclined plane, realizes the limit of the lock pin through the cooperation of the inclined plane and a locking part of a lock tongue after the door is locked, and solves the problem that the door can be automatically unlocked and opened after the door is pressed for many times. The technical scheme is that the automatic unlocking prevention structure of the door covering actuator comprises a shell, a bottom cover, a lock tongue and a lock pin, wherein the lock tongue is in clearance fit in a guide cylinder arranged on the shell, a spring is arranged between the lock tongue and the bottom cover at the lower end, the lock pin is driven by a motor arranged in the shell, a nylon Long Luogan is matched on a rotating shaft of the motor, an internal thread seat is arranged on the lock pin, the lock pin is in threaded fit with a nylon screw through the internal thread seat, one side of the lock pin extends to form an L-shaped connecting arm, a lock pin head is arranged at the short arm end of the L-shaped connecting arm, and the upper end face of the lock pin head is an inclined plane. Preferably, the inclination angle of the upper end face of the lock pin head is greater than 3 °. Preferably, the inner wall of the guide cylinder is provided with a guide groove which is centrosymmetric, the outer circular wall of the lock tongue is provided with a guide boss which is centrosymmetric, the bottom cover is provided with an annular guide bevel edge, a locking channel and an unlocking channel of the guide boss are formed between the annular guide bevel edge and the lower end of the guide groove, the lower end of the lock tongue is provided with an opening, two sides of the opening are provided with locking parts, and the locking parts move to the upper end face of a locking pin head of the lock pin to form locking. Preferably, grease is arranged on the annular guide inclined edge, and an oil storage tank is arranged at the bottom of the guide locking inclined edge. Preferably, the annular guiding oblique side comprises a guiding locking oblique side and a guiding unlocking oblique side, and a locking channel and an unlocking channel of a guiding boss are formed between the guiding locking oblique side