A new type of electric suction lock for automobile tailgate

Abstract

The present invention discloses a novel electric suction lock for a car tailgate, comprising a base; a lock back plate, which is arranged on the base; a pawl, which is installed in the base through a first torsion spring; a ratchet, which is installed in the base through a second torsion spring and abuts against the pawl; a ratchet connecting swing arm, which is arranged on the base and connected to the ratchet; a motor, whose output end is connected to a first gear; a second gear, which is rotatably arranged on the lock back plate and meshes with the first gear, and the second gear is provided with an arc groove and a movable rod movably arranged in the arc groove; a lock swing arm, one end of which is rotatably connected to the lock back plate, and the other end of which is provided with a movable groove, and the movable rod extends into the movable groove; an emergency switch, which is rotatably arranged on the lock back plate and abuts against the pawl; through the above structure, the electric suction lock can use the emergency switch to realize emergency unlocking under any circumstances, which greatly improves the driving experience.

Description

Technical Field

[0001] The invention relates to the technical field of automobiles, and in particular to a novel electric suction lock for a tailgate of an automobile. Background Art

[0002] Many cars nowadays are equipped with electric tailgates, and the realization of electric tailgates requires the cooperation of electric support rods and electric suction locks. Among them, in the existing electric suction locks, in order to open the car tailgate when the car is out of power or the electric suction lock fails, an emergency unlocking structure is designed in the electric suction lock, and an emergency unlocking window is opened at the car tailgate. The user can operate the emergency unlocking structure by opening the window, thereby manually opening the tailgate. However, the existing electric suction locks generally fix a push rod on the gear, and the motor drives the gear to rotate. When the gear rotates, the push rod drives the ratchet connecting swing arm to move, thereby realizing unlocking. When the motor flips, it drives the gear and the push rod to reset, and the ratchet connecting swing arm is reset under the action of the torsion spring. However, this kind of electric suction lock cannot be unlocked by using the emergency switch when the motor does not drive the gear to reset, which brings inconvenience to use. Therefore, there is an urgent need for an electric suction lock that can be unlocked by using the emergency switch under any circumstances. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a novel electric suction lock for a car tailgate.

[0004] The technical solution adopted by an embodiment of the present invention to solve the technical problem is: a new type of electric suction lock for a car tailgate, comprising:

[0005] Base;

[0006] A lock back plate is arranged on the base;

[0007] A ratchet pawl is installed in the base through a first torsion spring;

[0008] A ratchet wheel is installed in the base through a second torsion spring and abuts against the pawl;

[0009] A ratchet-connecting swing arm is disposed on the base and connected to the ratchet;

[0010] A motor, an output end of which is connected to a first gear;

[0011] A second gear is rotatably arranged on the lock back plate and meshes with the first gear, and the second gear is provided with an arc groove and a movable rod movably arranged in the arc groove;

[0012] The lock swing arm has one end rotatably connected to the lock back plate, and the other end is provided with a movable groove, into which the movable rod extends;

[0013] An emergency switch is rotatably arranged on the lock back plate and abuts against the ratchet;

[0014] The motor can drive the first gear to drive the second gear, the movable rod and the lock swing arm to move, so that the other end of the lock swing arm can push the ratchet connecting swing arm and the ratchet to rotate to lock; when the emergency switch is pressed, it can push the movable rod and the lock swing arm from one end of the arc groove to the other end of the arc groove, so that the lock swing arm and the ratchet connecting swing arm and the pawl and the ratchet are disengaged from the abutment, so that the ratchet connecting swing arm can drive the ratchet to rotate under the action of the second torsion spring to unlock.

[0015] Furthermore, a novel electric suction lock for a car tailgate also includes a tension spring with two ends respectively connected to the lock back plate and the movable rod.

[0016] Furthermore, the movable groove is configured as a waist-shaped hole.

[0017] Furthermore, the arc groove is configured as a V-shaped groove.

[0018] Further, the second gear is configured as a sector gear.

[0019] The beneficial effects of the present invention are as follows: a new type of electric suction lock for automobile tailgate comprises a base; a lock back plate, which is arranged on the base; a pawl, which is installed in the base through a first torsion spring; a ratchet, which is installed in the base through a second torsion spring and abuts against the pawl; a ratchet connecting swing arm, which is arranged on the base and connected to the ratchet; a motor, whose output end is connected to a first gear; a second gear, which is rotatably arranged on the lock back plate and meshes with the first gear, and the second gear is provided with an arc groove and a movable rod movably arranged in the arc groove; a lock swing arm, one end of which is rotatably connected to the lock back plate, and the other end is provided with a movable groove, and the movable rod extends into the movable groove; an emergency switch, which is rotatably arranged on the lock back plate and abuts against the pawl; the above structure enables the electric suction lock to use the emergency switch to achieve emergency unlocking under any circumstances, which greatly improves the driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a structural schematic diagram of an existing electric suction lock;

[0022] Figure 2 It is a structural schematic diagram of a new type of electric suction lock for a car tailgate in a locked state;

[0023] Figure 3 It is a structural schematic diagram of a new type of electric suction lock for a car tailgate in an emergency unlocking state;

[0024] Figure 4 This is a schematic diagram of the structure of a new type of electric tailgate lock for automobiles with some of its structures hidden;

[0025] Figure 5 This is an exploded view of a new type of electric suction lock for the tailgate of a car. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0027] In the description of the present invention, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are 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 should not be understood as a limitation on the present invention.

[0029] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0030] Reference Figures 1 to 5 , a new type of automobile tailgate electric suction lock, including:

[0031] Base 10;

[0032] A lock back plate 20, disposed on the base 10;

[0033] The pawl 31 is installed in the base 10 through the first torsion spring 41;

[0034] The ratchet wheel 32 is installed in the base 10 through the second torsion spring 42 and abuts against the pawl 31;

[0035] A ratchet connecting swing arm 50 is disposed on the base 10 and connected to the ratchet 32;

[0036] The motor 60 has an output end connected to a first gear 71;

[0037] The second gear 72 is rotatably disposed on the lock back plate 20 and meshes with the first gear 71. The second gear 72 is provided with an arc groove 721 and a movable rod 722 movably disposed in the arc groove 721;

[0038] The lock swing arm 80 has one end rotatably connected to the lock back plate 20 and the other end is provided with a movable groove 81, and the movable rod 722 extends into the movable groove 81;

[0039] The emergency switch 90 is rotatably disposed on the lock back plate 20 and abuts against the pawl 31;

[0040] The motor 60 can drive the first gear 71 to drive the second gear 72, the movable rod 722 and the lock swing arm 80 to move, so that the other end of the lock swing arm 80 can push the ratchet connecting swing arm 50 and the ratchet 32 ​​to rotate to lock; the emergency switch 90 can push the movable rod 722 and the lock swing arm 80 from one end of the arc groove 721 to the other end of the arc groove 721 when pressed, so that the lock swing arm 80 and the ratchet connecting swing arm 50 and the pawl 31 and the ratchet 32 ​​are disengaged from the abutment, so that the ratchet connecting swing arm 50 can drive the ratchet 32 ​​to rotate to unlock under the action of the second torsion spring 42.

[0041] In the present invention, the motor 60 drives the first gear 71 to rotate. When the first gear 71 rotates, it drives the second gear 72 meshing with it to rotate. When the emergency switch 90 is not pressed, the movable rod 722 is located on the side of the arc groove 721 close to the ratchet connecting swing arm 50, and the movable rod 722 is located at the upper end of the movable groove 81. Therefore, when the second gear 72 rotates, it will drive the movable rod 722 to move in the direction of the ratchet connecting swing arm 50. Since the movable rod 722 extends into the movable groove 81, it will move the lock swing arm 80, and then move the ratchet connecting swing arm 50. Since the ratchet connecting swing arm 50 is connected to the ratchet 32, it will drive the ratchet 32 ​​to rotate, so that the lock hook portion on the ratchet 32 ​​hooks the door bolt to complete the locking; the unlocking principle of the emergency switch 90 is: press the emergency switch 90, and the emergency switch 90 will force the pawl 31 and the ratchet 32 ​​to separate during the action, and the ratchet connecting swing arm 50 and the ratchet 32 ​​will be reset and unlocked under the drive of the second torsion spring 42.

[0042] Since the movable rod 722 of ordinary electric suction locks is fixedly connected to the second gear 72, the emergency switch 90 can be used to unlock the lock only when the motor 60 and the second gear 72 are reset. Otherwise, the ratchet connecting swing arm 50 will be blocked by the movable rod 722 on the second gear 72 and cannot be reset, and thus cannot drive the ratchet 32 ​​to unlock. Therefore, there is a situation where the lock cannot be unlocked even if the emergency switch 90 is used. In the present invention, the movable rod 722 and the second gear 72 are separated, and the arc groove 721 is provided, so that the emergency switch 90 can drive the movable rod 722 from the arc groove 7 21 moves from one side to the other side. Therefore, when the second gear 72 is not reset, the lock swing arm 80 can be pushed back to the unlocked state by pressing the emergency switch 90, and then the ratchet connecting swing arm 50 can also return to the unlocked state under the action of the second torsion spring 42 when the emergency switch 90 pushes and forces the pawl 31 and the ratchet 32 ​​to separate, thereby completing the unlocking. The advantage of the present invention is that regardless of whether the motor 60 drives the second gear 72 to complete the reset, it can also be manually unlocked by the emergency switch 90, which greatly improves the convenience and safety of the electric suction lock.

[0043] A new type of electric suction lock for automobile tailgate also includes a tension spring 91 whose two ends are respectively connected to the lock back plate 20 and the movable rod 722; the movable rod 722 is pulled by the tension spring 91, so that the movable rod 722 can move smoothly from one side of the arc groove 721 to the other side; further, the emergency switch 90 is installed on the lock back plate 20 through a third torsion spring, and can automatically reset after the emergency switch 90 is used.

[0044] The movable groove 81 is configured as a waist-shaped hole.

[0045] The arc groove 721 is configured as a V-shaped groove.

[0046] The second gear 72 is configured as a sector gear; this configuration can reduce the space occupied by the second gear 72 in the lock. Of course, due to the use of a sector gear, it is necessary to strictly control the number of revolutions of the motor 60 or the length of time of operation to avoid excessive rotation of the second gear 72.

[0047] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A new type of electric tailgate lock, characterized in that: include: Base (10); A lock back plate (20), arranged on the base (10); A ratchet pawl (31) is installed in the base (10) via a first torsion spring (41); A ratchet wheel (32) is installed in the base (10) via a second torsion spring (42) and abuts against the ratchet pawl (31); A ratchet connecting swing arm (50) is arranged on the base (10) and connected to the ratchet (32); A motor (60), an output end of which is connected to a first gear (71); A second gear (72) is rotatably arranged on the lock back plate (20) and meshes with the first gear (71), and the second gear (72) is provided with an arc groove (721) and a movable rod (722) movably arranged in the arc groove (721); A lock swing arm (80), one end of which is rotatably connected to the lock back plate (20), and the other end of which is provided with a movable groove (81), and the movable rod (722) extends into the movable groove (81); An emergency switch (90) is rotatably disposed on the lock back plate (20) and abuts against the ratchet pawl (31); The motor (60) can drive the first gear (71) to drive the second gear (72), the movable rod (722) and the lock swing arm (80) to move, so that the other end of the lock swing arm (80) can push the ratchet connecting swing arm (50) and the ratchet (32) to rotate to lock; when the emergency switch (90) is pressed, it can push the movable rod (722) and the lock swing arm (80) from one end of the arc groove (721) to the other end of the arc groove (721), so that the lock swing arm (80) and the ratchet connecting swing arm (50) and the ratchet pawl (31) and the ratchet (32) are disengaged from the abutment, so that the ratchet connecting swing arm (50) can drive the ratchet (32) to rotate to unlock under the action of the second torsion spring (42).

2. The novel electric tailgate lock of a car according to claim 1 is characterized by: It also includes a tension spring (91) with two ends respectively connected to the lock back plate (20) and the movable rod (722).

3. The novel electric tailgate lock of a car according to claim 1 is characterized by: The movable groove (81) is configured as a waist-shaped hole.

4. The novel electric tailgate lock for automobile according to claim 1 is characterized in that: The arc-shaped groove (721) is configured as a V-shaped groove.

5. The novel electric tailgate lock for automobile according to claim 1 is characterized in that: The second gear (72) is configured as a sector gear.

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