Locking and unlocking mechanism of automobile cover lock

Abstract

The utility model relates to the technical field of automobile cover locks, in particular to an automobile cover lock unlocking and locking mechanism which comprises a bottom plate, a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft, a torsion spring is connected between the fourth rotating shaft and the bottom plate, an opening rocker arm and a pawl are fixedly arranged on the first rotating shaft, and a ratchet wheel is fixedly arranged on the second rotating shaft. A first ratchet part and a second ratchet part are arranged on the ratchet wheel, a lock bolt is clamped between the first ratchet part and the second ratchet part, a locking opening is formed in the bottom plate, a transmission sector gear is fixedly arranged on the third rotating shaft, a self-suction sector gear is fixedly arranged on the fourth rotating shaft, and a clutch arm is rotationally arranged on the self-suction sector gear; a self-suction rocker arm is rotationally arranged on the fourth rotating shaft, a self-suction rocker arm riveting shaft is fixedly connected to the self-suction rocker arm, a hook part is arranged at one end of the clutch arm, an opening rocker arm riveting shaft is fixedly connected to the opening rocker arm, and a ratchet wheel riveting shaft is fixedly connected to one end of the ratchet wheel; the utility model solves the problem that the cover is difficult to close and inconvenient to open due to large spring force of the cover lock.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile hood lock, and relates to an opening and closing locking mechanism of automobile hood lock. BACKGROUND

[0002] With the improvement of living standards, the automobile gradually popular becomes people's common means of transportation. Therefore the safety performance requirement and use convenience of automobile gradually improve, because the spring force of hood lock is big, the hood of some vehicle needs to use big force to close, and because the weight of hood is big, the opening also needs to open the hood through pulling the opening handle of main driver, in order to facilitate the opening and closing of hood, an opening and closing locking mechanism of hood lock is urgently needed. SUMMARY

[0003] The utility model discloses to the above -mentioned problem, the problem that the spring force of hood lock is big leads to the closing of hood and the opening of hood is inconvenient.

[0004] According to the technical scheme of the utility model:

[0005] An opening and closing locking mechanism of automobile hood lock, including the bottom plate, the first rotation axis, the second rotation axis, the third rotation axis and the fourth rotation axis are rotationally arranged on the bottom plate, the fourth rotation axis is connected with the bottom plate and is connected with the torsion spring, the first rotation axis is fixedly sleeved with the opening rocker arm and the pawl, the second rotation axis is fixedly sleeved with the ratchet wheel, the ratchet wheel is equipped with the first ratchet part and the second ratchet part that cooperate with the pawl, the lock bolt is clamped between the first ratchet part and the second ratchet part, the bottom plate is equipped with the locking opening, the lock bolt can be slidably moved to the locking opening, the third rotation axis is fixedly sleeved with the transmission sector gear, when the transmission sector gear rotates counterclockwise, the opening rocker arm is rotated clockwise, the fourth rotation axis is fixedly sleeved with the self-suction sector gear, the self-suction sector gear is engaged with the transmission sector gear, the self-suction sector gear is rotationally connected with the clutch arm through the fifth rotation axis, the fourth rotation axis is rotationally arranged with the self-suction rocker arm, one end of the self-suction rocker arm is fixedly connected with the self-suction rocker arm rivet shaft, one end of the clutch arm is equipped with the hook part that matches the self-suction rocker arm rivet shaft, one end of the opening rocker arm is fixedly connected with the opening rocker arm rivet shaft, when the opening rocker arm rivet shaft rotates around the first rotation axis, the clutch arm rotates clockwise around the fifth rotation axis, one end of the ratchet wheel is fixedly connected with the ratchet wheel rivet shaft, and the ratchet wheel rivet shaft is in contact with the self-suction rocker arm.

[0006] The technical effect of the utility model lies in:

[0007] The opening and closing locking mechanism of automobile hood lock solves the problem that the spring force of hood lock is big and leads to the closing of hood and the opening of hood is inconvenient through ingenious design. Users do not need to close the hood with big force any more, and also do not need to open the hood through pulling the opening handle of main driver when opening the hood, which greatly improves the convenience of use. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 Structure diagram of the utility model Figure 1 .

[0009] Figure 2 Structure diagram of the utility model Figure 2 .

[0010] Figure 3 Structure diagram of the utility model Figure 3 .

[0011] Figure 4 Structure diagram of the utility model Figure 4 .

[0012] Figure 5 Structure diagram of the utility model Figure 5 .

[0013] Figure 6 Structure diagram of the utility model Figure 6 .

[0014] Figure 7 Structure diagram of the utility model Figure 7 .

[0015] Figure 8 Structure diagram of the utility model Figure 8 . DETAILED DESCRIPTION

[0016] The specific embodiments of the utility model will be further described below in combination with the drawings.

[0017] In order to make the person skilled in the art better understand the utility model scheme, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, and the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.

[0018] As shown in Figures 1-8 , including bottom plate 1, locking opening 101, first rotating shaft 2, second rotating shaft 3, third rotating shaft 4, fourth rotating shaft 5, opening rocker arm 6, pawl 7, ratchet wheel 8, first ratchet part 81, second ratchet part 82, lock bolt 9, transmission sector gear 10, self-suction sector gear 11, fifth rotating shaft 12, clutch arm 13, hook part 131, self-suction rocker arm 14, self-suction rocker arm rivet shaft 15, opening rocker arm rivet shaft 16, ratchet wheel rivet shaft 17.

[0019] AsFigures 1-8 As shown in the utility model discloses an automobile engine hood lock opening and closing lock mechanism, including the bottom plate 1, the bottom plate 1 is rotationally arranged with first rotation axis 2, second rotation axis 3, third rotation axis 4 and fourth rotation axis 5, the fourth rotation axis 5 is connected with the bottom plate 1 between torsion spring, the first rotation axis 2 is fixedly provided with the opening rocker arm 6 and the pawl 7 on, the second rotation axis 3 is fixedly provided with the ratchet wheel 8 on, the ratchet wheel 8 is equipped with the first ratchet part 81 and the second ratchet part 82 with the pawl 7 cooperation, the first ratchet part 81 and the second ratchet part 82 between the lock bolt 9 of clamping, the bottom plate 1 is set up and is locked opening 101, the lock bolt 9 can slide to the locked opening 101, the third rotation axis 4 is fixedly provided with the transmission sector gear 10 on, the transmission sector gear 10 counterclockwise rotation when drive opening rocker arm 6 rotates clockwise, the fourth rotation axis 5 is fixedly provided with the self-suction sector gear 11 on, the self-suction sector gear 11 with transmission sector gear 10 engagement, the self-suction sector gear 11 is rotationally connected with the clutch arm 13 through the fifth rotation axis 12, the fourth rotation axis 5 is rotationally arranged with the self-suction rocker arm 14, the self-suction rocker arm 14 one end is fixedly connected with the self-suction rocker arm rivet shaft 15, the clutch arm 13 one end is equipped with the hook portion 131 with the self-suction rocker arm rivet shaft 15 match, the opening rocker arm 6 one end is fixedly connected with the opening rocker arm rivet shaft 16, the opening rocker arm rivet shaft 16 rotates around the first rotation axis 2 when drive clutch arm 13 rotates clockwise around the fifth rotation axis 12, the ratchet wheel rivet shaft 17 of the ratchet wheel 8 one end is fixedly connected, the ratchet wheel rivet shaft 17 with self-suction rocker arm 14 abutment.

[0020] The working principle of the utility model is as follows:

[0021] Locking principle: Figure 1 For the cover lock into the lock state, when transmission sector gear 10 rotates counterclockwise around the third rotation axis 4, transmission sector gear 10 drive opening rocker arm 6 rotates clockwise around the first rotation axis 2, drive pawl 7 rotates clockwise around the first rotation axis 2 to reach as Figure 2 The position shown, pawl 7 and ratchet wheel 8 are separated, and ratchet wheel 8 rotates counterclockwise around the second rotation axis 3 under the action of torsion spring, drive lock bolt 9 to pop out locked opening 101, reach as Figure 3 The position shown, complete unlocking.

[0022] Half-lock self-suction principle: Figure 4 For the cover lock into the half-lock state, when transmission sector gear 10 rotates clockwise around the third rotation axis 4, transmission sector gear 10 drive self-suction sector gear 11 rotates counterclockwise around the fourth rotation axis 5, self-suction sector gear 11 drive clutch arm 13 move together, clutch arm 13 drive self-suction rocker arm rivet shaft 15 rotates counterclockwise around the fourth rotation axis 5 through hook portion 131, drive self-suction rocker arm 14 rotates counterclockwise around the fourth rotation axis 5, as Figure 5As shown, the self-priming rocker arm 14 drives the ratchet 8 to rotate clockwise around the second pivot 3 via the ratchet rivet pin 17. The ratchet 8, carrying the locking bolt 9, moves to the locking opening 101 until... Figure 6 Locking is completed at the indicated position.

[0023] Clutch principle: Figure 6 When the hood lock has just entered the locked state, the transmission mechanism has not yet reset. When the door is powered off, the transmission mechanism cannot return to its original position. At this time, the opening rocker arm 6 rotates clockwise around the first rotating shaft 2. The opening rocker arm 6 drives the clutch arm 13 to rotate clockwise around the fifth rotating shaft 12 via the opening rocker arm rivet shaft 16. Figure 7 As shown, the hook portion 131 of the clutch arm 13 disengages from the self-priming rocker arm rivet shaft 15, at which point the lock can be unlocked, ultimately as shown. Figure 8 As shown.

[0024] This utility model achieves multiple functions. Unlocking function: When the transmission sector gear 10 rotates counterclockwise, it drives the opening rocker arm 6 to rotate clockwise, causing the pawl 7 to separate from the ratchet 8. Under the action of the torsion spring, the ratchet 8 rotates, causing the bolt 9 to pop out of the locking opening 101, completing the unlocking process. The unlocking process is stable and reliable. Semi-lock self-locking function: When the transmission sector gear 10 rotates clockwise, it drives the self-locking sector gear 11 to rotate counterclockwise, thereby driving the self-locking rocker arm 14 to rotate. This causes the ratchet 8 to move the bolt 9 to the locking opening 101 to complete the locking, ensuring that the hood can automatically be locked in a semi-locked state, improving the reliability and stability of the hood lock. Clutch function: When the door is powered off and the transmission mechanism cannot return to its original position, the clockwise rotation of the opening rocker arm 6 drives the clutch arm 13 to rotate, causing the clutch arm 13 to disengage from the self-locking rocker arm 14, thus unlocking the lock. This ensures that the hood lock can still be unlocked normally under special circumstances, improving the fault tolerance and safety of the mechanism.

[0025] In summary, the hood lock opening and closing mechanism of this utility model has the advantages of convenient hood opening and closing, multiple functions, stability and reliability, and high safety performance, which can meet people's requirements for automobile safety performance and ease of use.

[0026] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A car hood lock opening and closing mechanism, comprising a bottom plate (1), a first rotating shaft (2), a second rotating shaft (3), a third rotating shaft (4) and a fourth rotating shaft (5) are rotatably arranged on the bottom plate (1), characterized in that: The fourth rotating shaft (5) is connected with the bottom plate (1) through a torsion spring, the first rotating shaft (2) is fixedly sleeved with an opening rocker arm (6) and a pawl (7), the second rotating shaft (3) is fixedly sleeved with a ratchet wheel (8), the ratchet wheel (8) is provided with a first ratchet part (81) and a second ratchet part (82) matched with the pawl (7), the first ratchet part (81) and the second ratchet part (82) are clamped with a lock bolt (9), the third rotating shaft (4) is fixedly sleeved with a transmission fan-shaped gear (10), the transmission fan-shaped gear (10) drives the opening rocker arm (6) to rotate clockwise when rotating counterclockwise, the fourth rotating shaft (5) is fixedly sleeved with a self-suction fan-shaped gear (11), the self-suction fan-shaped gear (11) is engaged with the transmission fan-shaped gear (10), the self-suction fan-shaped gear (11) is rotatably connected with a clutch arm (13) through a fifth rotating shaft (12), the fourth rotating shaft (5) is rotatably provided with a self-suction rocker arm (14), one end of the self-suction rocker arm (14) is fixedly connected with a self-suction rocker arm rivet shaft (15), one end of the opening rocker arm (6) is fixedly connected with an opening rocker arm rivet shaft (16), the opening rocker arm rivet shaft (16) drives the clutch arm (13) to rotate clockwise around the fifth rotating shaft (12) when rotating around the first rotating shaft (2), one end of the ratchet wheel (8) is fixedly connected with a ratchet wheel rivet shaft (17), the ratchet wheel rivet shaft (17) abuts against the self-suction rocker arm (14).

2. The automotive hood lock release mechanism of claim 1, wherein: The bottom plate (1) is provided with a locking opening (101), and the lock bolt (9) can be slidably moved into the locking opening (101).

3. The automotive hood lock release mechanism of claim 1, wherein: One end of the clutch arm (13) is provided with a hook part (131) matched with the self-suction rocker arm rivet shaft (15).

Images