A clutch type self-resetting suction mechanism

Abstract

The present invention relates to a clutch-type self-resetting pull-in mechanism, characterized in that when a driven mechanism card reaches a set area (a semi-locked position), the pull-in arm, driven by an external force from the mechanism, causes the pull-in push rod to rotate. The pull-in push rod's movement direction is controlled by the mechanism's limiter and the pull-in push rod spring, adjusting its direction as it rotates until it engages with the card's force-bearing portion in the semi-locked position. The pull-in mechanism then continues to drive the card to rotate to the fully locked position. When the mechanism's external force stops driving the pull-in mechanism, the pull-in mechanism assembly, under the action of the pull-in arm spring, overcomes the reaction of the pull-in push rod spring, driving the pull-in push rod out of engagement with the card, whereupon it abuts against the mechanism's limiter and returns to its initial position. When the suction mechanism of the present invention is in a free state, it is disengaged from the card plate, and the movement of the card plate has no contact with the suction mechanism; under the drive of an external force, the suction mechanism can engage with the card plate in a semi-locked state to a fully locked state and drive the card plate to rotate to a fully locked state; when the external force is removed, the suction arm spring overcomes the reaction force of the suction push rod spring to reset the suction mechanism to a free position and disengage from the card plate.

Description

Technical Field

[0001] The invention relates to a clutch type self-resetting suction mechanism, belonging to the technical field of automobile door lock structures. Background Art

[0002] As vehicle users demand ever-increasing comfort and usability, self-closing tailgate latches have become a must-have feature. As the core component that enables the closing function, the closing mechanism must possess a simple structure, high transmission efficiency, compact space, and smooth and reliable operation. Summary of the Invention

[0003] The present invention aims to provide a clutch-type self-resetting suction mechanism with small volume and stable and reliable transmission.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is:

[0005] A clutch type self-resetting suction mechanism, comprising a suction arm 4 and a clamping plate 2 mounted on a base plate 1 and a mechanism limiter 7, characterized in that the suction arm 4 is connected to the clamping plate 2 via a suction push rod 3;

[0006] The suction arm 4 is provided with a suction arm spring 5 which provides a reset function therefor;

[0007] The suction push rod 3 is rotatably connected to the suction arm 4 and is equipped with a suction push rod spring 6;

[0008] The card plate 2 is provided with a card plate force-bearing portion 21;

[0009] The suction push rod 3 has a suction push rod limiting portion 31 and a suction push rod clamping portion 32;

[0010] During the resetting process, the suction arm 4 rotates in the opposite direction under the action of the suction arm spring 6, driving the suction push rod 3 to overcome the reaction force of the suction push rod spring 5 and rotate until the suction push rod limit part 31 abuts against the mechanism limit part 7, and further overcomes the reaction force of the suction push rod spring 6, so that the suction push rod 3 is reset to the initial position.

[0011] During the suction process, the external force overcomes the force of the suction arm spring 5, driving the suction arm force-bearing part 41 to drive the suction arm 4 to rotate, and the suction arm 4 drives the suction push rod 3 to rotate. Under the joint action of the suction push rod spring 6 and the mechanism limiting part 7 on the suction push rod limiting part 31, the suction push rod 3 rotates and adjusts its direction according to a predetermined route until it engages with the card plate force-bearing part 21 in the semi-locked position, thereby pushing the card plate 2 from the semi-locked position to the fully locked position.

[0012] During the suction process, the clamping portion 32 of the suction push rod can engage with the clamping plate force-bearing portion 21 at any position of the clamping plate 2 from half-locked to fully locked.

[0013] The clamping plate 2 and the clamping plate force-bearing portion 21 are an integrated structure or a split assembly structure.

[0014] The suction push rod 3, the suction push rod limiting portion 31 and the suction push rod clamping portion 32 are an integrated structure or a split assembly structure.

[0015] The mechanism limiting portion 7 can be an integrated structure or a separate assembly structure with the base plate 1, or can be independently provided outside the base plate 1;

[0016] The substrate 1 is provided with a first rotation axis A and a second rotation axis B, the card plate 2 is rotatably mounted on the first rotation axis A, and the suction arm 4 is rotatably mounted on the second rotation axis B; the positions of the first rotation axis A and the second rotation axis B relative to the substrate 1 are fixed; the relative positions of the card plate 2 and the card plate force-bearing part 21 are fixed, and the relative positions of the suction arm 4 and the suction arm force-bearing part 41 are fixed.

[0017] The suction arm 4 , the suction push rod 3 and the suction push rod spring 6 are connected via a third rotation axis C.

[0018] When the card plate 2 rotates and the clutch self-resetting suction mechanism is in a free state, its rotational movement will not affect the spatial relative position of the suction push rod 3 relative to the substrate 1, that is, when the card plate 2 rotates relative to the substrate 1, the spatial position of the suction push rod 3 relative to the substrate 1 remains unchanged.

[0019] When the engaging push rod clamping portion 32 is engaged with the card plate force-bearing portion 21, the engaging push rod 3 will push the card plate force-bearing portion 21, so that the card plate 2 moves from the semi-locked position to the fully locked position; and the force passes through the center of the third rotation axis C, so that the engaging push rod clamping portion 32 and the card plate force-bearing portion 21 remain engaged and do not disengage, and the engaging mechanism is stable and reliable.

[0020] The present invention provides a clutch-type self-resetting suction mechanism, which is characterized in that when the suction mechanism is in a free state, it is disengaged from the card plate, and the movement of the card plate has no contact with the suction mechanism; under the drive of an external force, the suction mechanism can engage with the card plate in a semi-locked state to a fully locked state and drive the card plate to rotate to a fully locked state; when the external force is removed, the suction arm spring overcomes the reaction force of the suction push rod spring to reset the suction mechanism to a free position and disengage from the card plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 : Exploded view of a clutch-type self-resetting suction mechanism of the present invention (card fully locked position, suction mechanism initial position);

[0022] Figure 2 : Assembly diagram of a clutch-type self-resetting suction mechanism of the present invention (the clamping plate is in a semi-locked position, and the suction mechanism has not yet disengaged from the mechanism limiter and is about to engage with the clamping plate);

[0023] Figure 3 : A view of a clutch-type self-resetting suction mechanism of the present invention (card half-locked position, suction mechanism and card engaged position);

[0024] Figure 4 : A view of a clutch-type self-resetting suction mechanism of the present invention (the suction mechanism pushes the card to the fully locked position);

[0025] Figure 5 : Schematic diagram of the reset action of a clutch-type self-reset suction mechanism of the present invention (the self-reset process of the suction mechanism and the disengagement position of the card plate);

[0026] Figure 6 : Schematic diagram of the reset action of a clutch-type self-resetting suction mechanism of the present invention (card fully open position, suction mechanism initial position);

[0027] In the figure, 1, base plate, 2, clamping plate, 21, clamping plate force-bearing part, 3, suction push rod, 31, suction push rod limiting part, 32, suction push rod clamping part, 4, suction arm, 41, suction arm force-bearing part, 5, suction arm spring, 6, suction push rod spring, 7, mechanism limiting part, A, first rotation axis, B, second rotation axis, C, third rotation axis. DETAILED DESCRIPTION

[0028] Attached below Figure 1-6 The structure, principle and operation process of the clutch type self-resetting suction mechanism of the present invention are further described in detail.

[0029] Example 1

[0030] A clutch-type self-resetting suction mechanism includes a base plate 1, a card plate 2, a suction push rod 3, a suction arm 4, a suction arm spring 5, a suction push rod spring 6, a mechanism limiter 7, and a first rotation axis A, a second rotation axis B, and a third rotation axis C. The first rotation axis A and the second rotation axis B are mounted on the base plate 1. The card plate 2 rotates about the first rotation axis A. The card plate 2 is provided with a card force-bearing portion 21 and a mechanism limiter 7. The suction arm 4 rotates about the second rotation axis B. One end of the suction arm 4 is provided with a suction arm force-bearing portion 41, and the other end is provided with a third rotation axis C. The suction push rod 3 rotates about the third rotation axis C. The suction push rod 3 has a suction push rod limiter 31 and a suction push rod clamping portion 32.

[0031] The clamping plate 2 and the clamping plate force-bearing portion 21 can be integrally formed or assembled separately. The engaging push rod 3 is provided with an engaging push rod limiting portion 31 and an engaging push rod clamping portion 32, which can be integrally formed or assembled separately. The engaging push rod limiting portion 31 rotates around the mechanism limiting portion 7, and the engaging push rod clamping portion 32 is adapted to engage with the clamping plate force-bearing portion 21.

[0032] The relative positions of the first rotation axis A and the second rotation axis B and the substrate 1 are fixed, the relative positions of the card plate 2 and the card plate force-bearing part 21 are fixed, the suction arm 4 and the suction arm force-bearing part 41 are fixed relative to each other, and the suction arm 4 is connected to the suction push rod 3 and the spring 6 through the rotating shaft C.

[0033] The clutch type self-resetting suction mechanism of this embodiment operates as follows:

[0034] 1. Suction process: The suction arm force-bearing portion 41 overcomes the force of the suction arm spring 5 under the drive of the external force of the mechanism, and drives the suction arm 4 to rotate. The suction arm 4 drives the suction push rod 3 to rotate during the transportation process. The suction push rod 3 is under the joint action of the suction push rod spring 6 and the mechanism limit part 7 on the suction push rod limit part 31 (as shown in FIG. Figure 2 ), rotate along a specific route until it engages with the clamping plate force-bearing portion 21 in the semi-locked position (such as Figure 3 ), thereby pushing the card plate 2 from the semi-locked position to the fully locked position (such as Figure 4 When the card plate 2 is in any position from half-locked to fully locked, the suction push rod clamping portion 32 can engage with it, pushing the card plate 2 to rotate until it reaches the fully locked position.

[0035] 2. Reset process: The suction arm spring 5 stores energy during the suction process of the suction mechanism. When the external force of the mechanism is removed, the suction arm spring 5 drives the suction arm 4 to rotate in the opposite direction, and the suction arm 4 drives the suction push rod 3 to rotate so that the suction push rod clamping portion 32 is disengaged from the clamping plate force portion 21 (such as Figure 5 ), the suction push rod continues to rotate until the suction push rod limit portion 31 abuts against the mechanism limit portion 7 (such as Figure 2 ), spring 5 drives the suction mechanism to overcome the reaction force of spring 6 and reset the suction mechanism to its initial position.

[0036] When the suction mechanism is in the initial position (such as Figure 6 ), when the card plate 2 rotates, its rotational motion will not affect the spatial relative position of the suction push rod 3 relative to the base plate 1, that is, when the card plate 2 rotates relative to the base plate 1, the spatial position of the suction push rod 3 relative to the base plate 1 remains unchanged.

[0037] The above working process of the present invention is an example for clearly illustrating the present invention, and is not intended to limit the embodiments of the present invention. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A clutch type self-resetting suction mechanism, comprising a suction arm and a clamping plate mounted on a base plate and a mechanism limiting portion, characterized in that: The suction arm is connected to the clamping plate via a suction push rod; The suction arm is provided with a suction arm spring which provides a reset function therefor; The suction push rod is rotatably connected to the suction arm and is equipped with a suction push rod spring; The card plate is provided with a card plate force-bearing portion; The suction push rod comprises a suction push rod limiting portion and a suction push rod clamping portion; During the reset process, the suction arm rotates in the opposite direction under the action of the suction arm spring, driving the suction push rod to overcome the reaction force of the suction push rod spring and rotate until the suction push rod limit part abuts against the mechanism limit part, and further overcomes the reaction force of the suction push rod spring, so that the suction push rod is reset to the initial position; During the suction process, the external force overcomes the spring force of the suction arm, drives the force-bearing part of the suction arm to drive the suction arm to rotate, and the suction arm drives the suction push rod to rotate. Under the combined action of the suction push rod spring and the mechanism limit part on the suction push rod limit part, the suction push rod rotates and adjusts its direction according to a predetermined route until it engages with the force-bearing part of the card plate in the semi-locked position, thereby pushing the card plate from the semi-locked position to the fully locked position; During the suction process, the clamping portion of the suction push rod can engage with the force-bearing portion of the clamping plate at any position from half-locked to fully locked.

2. A clutch type self-resetting suction mechanism according to claim 1, characterized in that: The clamping plate and the clamping plate force-bearing part are an integrated structure or a split assembly structure.

3. A clutch type self-resetting suction mechanism according to claim 1, characterized in that: The suction push rod, the suction push rod limiting portion and the suction push rod clamping portion are an integrated structure or a split assembly structure.

4. A clutch type self-resetting suction mechanism according to claim 1, characterized in that: The mechanism limiting part and the base plate are an integrated structure or a separate assembly structure, or are independently arranged outside the base plate.

5. The clutch type self-resetting suction mechanism according to claim 1, characterized in that: The base plate is provided with a first rotating shaft and a second rotating shaft, the card plate is rotatably mounted on the first rotating shaft, and the suction arm is rotatably mounted on the second rotating shaft; the positions of the first rotating shaft and the second rotating shaft relative to the base plate are fixed; the relative positions of the card plate and the card plate force-bearing part are fixed, and the relative positions of the suction arm and the suction arm force-bearing part are fixed.

6. A clutch type self-resetting suction mechanism according to claim 1, characterized in that: The suction arm, the suction push rod and the suction push rod spring are connected through a third rotating shaft.

7. The clutch type self-resetting suction mechanism according to claim 1, characterized in that: When the card plate rotates and the clutch self-resetting suction mechanism is in a free state, its rotational motion will not affect the spatial relative position of the suction push rod relative to the base plate, that is, when the card plate rotates relative to the base plate, the spatial position of the suction push rod relative to the base plate remains unchanged.

8. The clutch type self-resetting suction mechanism according to claim 1, characterized in that: When the engaging push rod engaging portion engages with the force-bearing portion of the card plate, the engaging push rod will push the force-bearing portion of the card plate, causing the card plate to move from a semi-locked position to a fully locked position; and the force passes through the center of the third rotating shaft, causing the engaging push rod engaging portion and the force-bearing portion of the card plate to remain engaged and not disengaged.

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