Electric suction and electric unlocking

Abstract

The present invention relates to an electrically attracted and electrically unlocked lock. An electrically attracted and electrically unlocked lock includes a locking tongue, a clamping plate and a driving motor. The locking tongue and the clamping plate are rotationally fixed on a housing. The driving motor drives the locking tongue to rotate through a speed reduction assembly. The speed reduction assembly includes at least one linkage gear and a locking gear. The locking gear is fixed to a push block at a position offset from the center. The locking tongue is provided with a first linkage protrusion extending laterally. When the locking gear rotates, the push block approaches the first linkage protrusion of the locking tongue to achieve full locking. The linkage gear drives the clamping plate to rotate through an unlocking block. The unlocking block is rotationally fixed on the housing. The unlocking block is provided with a second linkage protrusion. A pushing protrusion is provided at the end of the unlocking block. The linkage gear is provided with a pushing surface. When the linkage gear rotates, the pushing surface contacts the second linkage protrusion to drive the clamping plate to rotate away from the locking tongue side. The present invention has the advantages of being convenient for realizing miniaturization of the lock body and having lower production costs.

Description

Technical Field

[0001] The present invention relates to an electro - suction and electro - unlocking device. Background Art

[0002] Chinese Patent with application number 201821199037.1 discloses a car door lock that can achieve electro - suction and electro - opening functions. When the locking motor starts, it drives the wire reel of the electro - suction driving device to rotate, pulling the locking rope to the left tightly. The locking plate rotates around the rotating shaft, driving the locking push block to move to the right, thereby pushing the lock tongue to rotate; the unlocking motor drives the unlocking worm, thereby driving the unlocking wire reel to rotate to achieve unlocking. The above - mentioned solution realizes the electro - suction and electro - opening functions by separately setting one motor. Two motors need to be placed in the lock body, resulting in a high cost and a large volume. Summary of the Invention

[0003] The object of the present invention is to provide an electro - suction and electro - unlocking device that can achieve electro - suction and electro - opening functions with one motor.

[0004] To achieve the above object, the present invention adopts the following technical scheme: An electro - suction and electro - unlocking device includes a lock tongue, a clamping plate, and a driving motor. The lock tongue and the clamping plate are rotationally fixed on a housing. The lock tongue and the clamping plate are respectively equipped with a lock - tongue elastic member and a clamping - plate elastic member. The driving motor drives the lock tongue to rotate through a speed - reducing assembly. The speed - reducing assembly includes at least one linkage gear and a locking gear. The linkage gear receives the torque of the driving motor and transmits it to the locking gear. The locking gear is fixed to the fixed end of the push block at a position deviated from the center. One end of the push block deviated from the fixed end is the first pushing end. The lock tongue is provided with a first linkage protrusion that extends laterally and is used to contact the first pushing end. When the locking gear rotates, the first pushing end approaches the first linkage protrusion of the lock tongue to achieve full locking or moves away from the first linkage protrusion for resetting. The linkage gear drives the clamping plate to rotate through an unlocking block. The unlocking block is rotationally fixed on the housing. The unlocking block is provided with a second linkage protrusion for contacting the linkage gear, and a pushing protrusion for pushing the clamping plate to rotate at the end of the unlocking block. The linkage gear is provided with a pushing surface for contacting the side surface of the second linkage protrusion. When the linkage gear rotates, the pushing surface contacts the second linkage protrusion to push the clamping plate to rotate away from the lock - tongue side or the pushing surface moves away from the second linkage protrusion.

[0005] When closing the door, the lock catch impacts the lock tongue, causing the lock tongue to rotate to the semi - locked state. Then, the driving motor controls the locking gear to rotate. The push block fixed to the locking gear swings, and the first pushing end of the push block contacts the first linkage protrusion on the lock tongue. As the locking gear continues to rotate, the lock tongue is pushed by the push block to the full - locked state.

[0006] When the door is opened, the driving motor controls the linkage gear to reverse. The pushing surface of the linkage gear abuts against the pushing protrusion of the unlocking block, thereby realizing the rotation of the unlocking block. After the unlocking block pushes the clamping plate to rotate, the lock tongue is reset under the action of the lock tongue elastic member, thereby realizing unlocking.

[0007] In the present invention, by providing a driving motor, the functions of electrically sucking to close the door and locking, and electrically opening and unlocking can be achieved, which can reduce the production cost and make the volume of the lock body smaller, so that it can be applicable to different vehicle models.

[0008] Preferably, the clamping plate is relatively located between the lock tongue and the upper locking gear, and the pushing block is located on the axial side of the linkage gear and the upper locking gear. The above layout is set to make the volume of the lock body of the present invention smaller.

[0009] Preferably, an arc-shaped groove is provided on the end face of the linkage gear. The end of the second linkage protrusion extends into the arc-shaped groove, and the groove wall at the end of the arc-shaped groove has the pushing surface. The setting of the arc-shaped groove can make the axial space smaller, and the arc-shaped groove can also play a guiding role for the second linkage protrusion.

[0010] Preferably, the axis of the linkage gear with the pushing surface is coaxially arranged with the rotation axis of the unlocking block. Through the above setting, the miniaturization of the lock body of the present invention is further realized.

[0011] Preferably, a matching block that is synchronously linked with the clamping plate is provided on the axial side of the clamping plate, and one end of the unlocking block extends to the side of the matching block. That is, the unlocking block is located on the axial side of the clamping plate to further realize the miniaturization of the lock body of the present invention.

[0012] Preferably, a reset block is rotatably fixed on the housing. A reset block elastic member for rotating and resetting the reset block is provided at the reset block. One end of the reset block is a linkage end, and the other end of the reset block is a second pushing end. When the linkage end of the reset block is stressed, the second pushing end of the reset block approaches the pushing block, and the first pushing end of the pushing block moves away from the lock tongue. In case of a failure, the reset block can be rotated to reset the pushing block, so as to prevent the first pushing end of the pushing block from always contacting the first linkage protrusion of the lock tongue.

[0013] Preferably, the linkage end of the reset block contacts the second linkage protrusion of the unlocking block through a first linkage block and a second linkage block. One end of the first linkage block is rotatably fixed to the linkage end, the other end of the first linkage block is rotatably fixed to the second linkage block, one end of the second linkage block extends to the side of the second linkage protrusion, and the first linkage block and the second linkage block are both provided with linkage block elastic members for rotating and resetting themselves.

[0014] Preferably, the rotation axis of the reset block is coaxially arranged with the rotation axis of the locking gear. Through the above arrangement, the miniaturization of the lock body of the present invention is further realized.

[0015] Preferably, a pulling member fixing block is rotatably provided on the housing. One end of the pulling member fixing block is connected to the pulling member. When the pulling member is pulled, the other end of the pulling member fixing block moves towards the other end of the second linkage block and pushes the second linkage protrusion, so that the unlocking block pushes the clamping plate. The pulling member is used to connect with the door handle. Through the above, the present invention has the function of mechanical unlocking. And the structure of mechanical unlocking and the structure of the push plate reset have common components, which can further realize the miniaturization of the lock body.

[0016] Preferably, the end of the unlocking block away from the pushing protrusion extends out of the housing. Among them, the end of the unlocking block extending out of the housing can be linked with the lock core to realize the emergency unlocking of the mechanical key.

[0017] The present invention has the advantages of being convenient to realize the miniaturization of the lock body and having a lower production cost. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the present invention in the fully locked state.

[0019] Figure 2 It is a schematic structural diagram of the lock body of the present invention after removing the housing.

[0020] Figure 3 It is another schematic structural diagram of the lock body of the present invention after removing the housing.

[0021] Figure 4 It is a schematic structural diagram of the reset block of the present invention.

[0022] Figure 5 It is a schematic structural diagram of the present invention during electric unlocking. Detailed Embodiments

[0023] The present invention will be further described below with reference to the drawings and specific embodiments.

[0024] As shown by Figures 1 to 5 , the present invention discloses an electro-suction and electric unlocking device, which includes a lock tongue 1, a clamping plate 2 and a driving motor 101. The lock tongue 1 and the clamping plate 2 are rotatably fixed on the housing 100. The lock tongue 1 and the clamping plate 2 are respectively provided with a lock tongue elastic member (not shown in the figure) and a clamping plate elastic member (not shown in the figure). Both the lock tongue elastic member and the clamping plate elastic member are torsion springs.

[0025] The driving motor 101 drives the locking tongue 1 to move through a speed reduction assembly. The speed reduction assembly includes at least one linkage gear 3 and a locking gear 4. The linkage gear 3 receives the torque of the driving motor 101 and transmits it to the locking gear 4. The locking gear 4 is fixed to the fixed end 411 of the strip-shaped push block 41 at a position offset from the center. One end of the push block 41 away from the fixed end 411 is the first pushing end 412. The locking tongue 1 is provided with a first linkage protrusion 11 that extends laterally and is used to contact the first pushing end 412. When the driving motor 101 drives the locking gear 4 to rotate, the first pushing end 412 pushes the first linkage protrusion 11 of the locking tongue 1 to achieve full locking. Wherein, the clamping plate 2 is relatively located between the locking tongue 1 and the locking gear 4, and the push block 41 is located on the axial side of the linkage gear 3 and the locking gear 4.

[0026] The linkage gear 3 pushes the clamping plate 2 to rotate through the unlocking block 5. The unlocking block 5 is rotatably fixed to the housing 100. The unlocking block 5 is provided with a second linkage protrusion 51 for contacting the linkage gear 3. One end of the unlocking block 5 is located inside the housing 100 and is provided with a pushing protrusion 52 for pushing the clamping plate 2 to rotate. The other end of the unlocking block 5 extends outside the housing 100. The end face of the linkage gear 3 is provided with an arc-shaped groove 31. The end of the columnar second linkage protrusion 51 extends into the arc-shaped groove 31. The end wall of the arc-shaped groove 31 has a pushing surface 30 for pushing the second linkage protrusion 51. When the driving motor rotates in reverse to drive the linkage gear 3 to rotate, the pushing surface 30 contacts the second linkage protrusion 51 to push the clamping plate 2 to rotate away from the locking tongue 1. Wherein, the rotation axis of the unlocking block 5 is coaxially arranged with the rotation axis of the linkage gear 3.

[0027] Wherein, a matching block 21 that is synchronously linked with the clamping plate 2 is provided on the axial side of the clamping plate 2. The pushing protrusion 52 at the inner end of the unlocking block 5 extends to the side of the matching block 21 and is located on the axial side of the clamping plate 2. The surface of the inner end of the unlocking block 5 for contacting the side surface of the matching block 21 is an arc surface. Wherein, the second linkage protrusion 51 is located between the inner end of the unlocking block 5 and the rotation axis of the unlocking block 5.

[0028] A reset block 6 is rotatably fixed to the housing 100. One end of the reset block 6 is the linkage end 61, and the other end of the reset block 6 is the second pushing end 62. When the linkage end 61 of the reset block 6 is stressed, the second pushing end 62 of the reset block 6 approaches the push block 41, and the first pushing end 412 of the push block 41 moves away from the locking tongue 1. Wherein, the rotation axis of the L-shaped reset block 6 is coaxially arranged with the rotation axis of the locking gear 4. The reset block 6 is provided with a reset block elastic member for resetting the reset block. The reset block elastic member is a torsion spring.

[0029] The linkage end 61 of the reset block 6 contacts the second linkage protrusion 51 of the unlocking block 5 through the first linkage block 7 and the second linkage block 8. One end of the first linkage block 7 is rotatably fixed to the linkage end 61, the other end of the first linkage block 7 is rotatably fixed to the second linkage block 8, and one end of the second linkage block 8 extends to the side of the second linkage protrusion 51. Both the first linkage block 7 and the second linkage block 8 are equipped with linkage block elastic members for rotating and resetting themselves, and the linkage block elastic members are torsion springs.

[0030] A pulling member fixing block 9 is also rotatably provided on the housing 100. One end of the pulling member fixing block 9 is connected to the pulling member 91. When the pulling member 91 is pulled, the other end of the pulling member fixing block 9 moves towards the other end of the second linkage block 8 and pushes the second linkage protrusion 51, so that the unlocking block 5 pushes the clamping plate 2. The pulling member in this embodiment is a wire cable linked to the inner handle of the vehicle door.

[0031] When closing the door, the lock catch impacts the lock tongue to cause the lock tongue to rotate to the half-locked state, and then the driving motor controls the rotation of the locking gear. The push block fixed to the locking gear swings, and the first pushing end of the push block contacts the first linkage protrusion on the lock tongue. As the locking gear continues to rotate, the lock tongue is pushed by the push block to the fully locked state to achieve the electric suction locking function.

[0032] When opening the door, the driving motor controls the reverse rotation of the linkage gear. The pushing surface of the linkage gear abuts against the pushing protrusion of the unlocking block, thereby realizing the rotation of the unlocking block. After the unlocking block pushes the clamping plate to rotate, the lock tongue resets under the action of the lock tongue elastic member, thereby realizing the electric door opening and unlocking function.

[0033] When power is off or the push block is not reset, the user inside the vehicle can pull the inner handle on the vehicle door, and the inner handle drives the pulling member to move, so that the inner end of the unlocking block pushes the clamping plate to rotate to achieve mechanical unlocking.

[0034] The user outside the vehicle can use the mechanical key to unlock, so that the outer end of the unlocking block swings, so that the inner end of the unlocking block pushes the clamping plate to rotate to achieve mechanical unlocking.

Claims

1. An electric suction and electric unlocking device, comprising a lock tongue, a clamping plate and a driving motor, wherein the lock tongue and the clamping plate are rotationally fixed on a housing, and the lock tongue and the clamping plate are respectively provided with a lock tongue elastic member and a clamping plate elastic member, and it is characterized in that: The driving motor drives the locking tongue to rotate through a speed reduction assembly. The speed reduction assembly includes at least one linkage gear and a locking gear. The linkage gear receives the torque of the driving motor and transmits it to the locking gear. The locking gear is fixed to the fixed end of the push block at a position offset from the center. One end of the push block offset from the fixed end is the first pushing end. The locking tongue is provided with a first linkage protrusion extending laterally and adapted to contact the first pushing end. When the locking gear rotates, the first pushing end approaches the first linkage protrusion of the locking tongue to achieve full locking or moves away from the first linkage protrusion for resetting. The linkage gear pushes the clamping plate to rotate through an unlocking block. The unlocking block is rotatably fixed to the housing. The unlocking block is provided with a second linkage protrusion adapted to contact the linkage gear. The end of the unlocking block is provided with a pushing protrusion for pushing the clamping plate to rotate. The linkage gear is provided with a pushing surface adapted to contact the side surface of the second linkage protrusion. When the linkage gear rotates, the pushing surface contacts the second linkage protrusion to push the clamping plate to rotate away from the locking tongue side or the pushing surface moves away from the second linkage protrusion. A reset block is rotatably fixed to the housing. A reset block elastic member for rotating and resetting the reset block is provided at the reset block. One end of the reset block is a linkage end, and the other end of the reset block is a second pushing end. When the linkage end of the reset block is stressed, the second pushing end of the reset block approaches the push block, and the first pushing end of the push block moves away from the locking tongue.

2. The electric suction and electric unlocking device according to claim 1, wherein: The clamping plate is relatively located between the locking tongue and the locking gear. The push block is located on the axial side of the linkage gear and the locking gear.

3. The electric suction and electric unlocking device according to claim 1, characterized in that: An arc-shaped groove is provided on the end surface of the linkage gear. The end of the second linkage protrusion extends into the arc-shaped groove. The groove wall at the end of the arc-shaped groove is the pushing surface.

4. The electric suction and electric unlocking device according to claim 1 or 3, characterized in that: The axis of the linkage gear having the pushing surface is coaxially arranged with the rotation axis of the unlocking block.

5. The electric suction and electric unlocking device according to claim 1, characterized in that: A matching block synchronously linked with the clamping plate is provided on the axial side of the clamping plate. One end of the unlocking block extends to the side of the matching block.

6. The electric suction and electric unlocking device according to claim 1, characterized in that: The linkage end of the reset block contacts the second linkage protrusion of the unlocking block through a first linkage block and a second linkage block. One end of the first linkage block is rotatably fixed to the linkage end. The other end of the first linkage block is rotatably fixed to the second linkage block. One end of the second linkage block extends to the side of the second linkage protrusion. The first linkage block and the second linkage block are both provided with linkage block elastic members for rotating and resetting themselves.

7. The electric suction and electric unlocking device according to claim 1, characterized in that: The rotation axis of the reset block is coaxially arranged with the rotation axis of the locking gear.

8. The electric suction and electric unlocking device according to claim 6, characterized in that: A pulling member fixing block is rotatably provided on the housing. One end of the pulling member fixing block is connected to a pulling member. When the pulling member is pulled, the other end of the pulling member fixing block moves towards the other end of the second linkage block and pushes the second linkage protrusion, so that the unlocking block pushes the clamping plate.

9. The electro-suction and electro-unlocking device according to claim 1 or 8, characterized in that: One end of the unlocking block away from the pushing protrusion extends out of the housing.

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