Automobile mask lock body with double-pawl mechanism

Abstract

The utility model relates to the technical field of automobile mask locks, in particular to an automobile mask lock body with a double-pawl mechanism, which comprises a shell, an upper cover plate and a lower cover plate, a meshing mechanism and an opening rocker arm are arranged on the shell, and an opening blocking mechanism is arranged on the upper cover plate. An opening rocker arm return spring and a meshing pawl are sequentially arranged on the opening rocker arm and riveted through a pawl shaft, the opening stopping pawl is riveted to the upper cover plate through an opening stopping pawl shaft, and the opening rocker arm abuts against the shell through the opening rocker arm return spring. The safety lock is novel and reasonable in structure, safe and compact, small and exquisite in appearance and flexible in lock body installation mode, the double-pawl mechanism reduces the influence of the mask environment on the opening force inside the lock body, opening is labor-saving, the opening force value of the lock body in the loading state is greatly reduced, the opening comfort of passengers is improved, and the safety of the passengers is improved. The problems that under the working condition that a surface-mounted lock body is used in a severe environment, a passenger often gets stuck when opening a mask, the opening force is large, and the operation body feeling is poor due to the large opening force are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile face mask lock, especially to a double pawl mechanism's automobile face mask lock body. BACKGROUND

[0002] The car face mask lock is also called automobile engine hood lock, and during the driving of the vehicle, the road bump, vibration and airflow generated by high-speed driving can all affect the automobile face mask. The automobile face mask lock firmly locks the face mask (such as the engine hood) and the vehicle body together through reliable mechanical structure or electronic control mode, prevents the accidental opening of the engine hood due to accidental vibration or wind pressure, avoids affecting the aerodynamics and driving stability of the vehicle, and prevents possible accidents.

[0003] At present, the use environment of the face mask lock body is harsh, and the passenger often experiences the phenomena of stuck opening of the face mask and large opening force when using, which brings bad operation experience to the user. The current market needs a lock body with small size and small opening force to facilitate the environmental arrangement of the vehicle body and the opening comfort of the operator. Therefore, we propose a double pawl mechanism's automobile face mask lock body. UTILITY MODEL CONTENTS

[0004] Based on the technical problems existing in the background technology, the utility model provides a double pawl mechanism's automobile face mask lock body, which reduces the influence of the face mask environment on the opening force of the lock body inside, saves the opening labor, greatly reduces the opening force value of the lock body in the vehicle state, improves the opening comfort of the passenger, solves the problems of stuck opening of the face mask and large opening force of the passenger in harsh working conditions of the face mask lock body, and the bad operation feeling caused by the large opening force.

[0005] The utility model provides the following technical scheme: a double pawl mechanism's automobile face mask lock body, which comprises an upper cover plate, a shell and a lower cover plate, the upper cover plate is provided with a ratchet limiting shaft, an opening resisting pawl limiting shaft and an opening resisting pawl shaft, the opening resisting pawl shaft is provided with an opening resisting pawl; by accurately setting each limiting shaft, the movement track of the corresponding component can be effectively limited, the position accuracy of the opening resisting pawl during work is ensured, and a stable basis is provided for subsequent locking and unlocking actions.

[0006] The housing is matched with a ratchet shaft, a pawl shaft, a mounting column one and a mounting column two; the ratchet shaft is sequentially provided with a ratchet return spring and a ratchet; the pawl shaft is sequentially provided with an opening rocker arm, an opening rocker arm return spring and an engagement pawl; the mounting column two is provided with a blocking pawl return spring; the ratchet return spring can ensure the ratchet to be quickly reset after completing the action, and guarantee the continuous working performance of the lock body; the opening rocker arm return spring can make the opening rocker arm return to the initial position in time, and facilitate the next operation; the blocking pawl return spring maintains the initial state of the blocking pawl, and provides guarantee for the stable operation of the whole lock body.

[0007] In the engagement state, the blocking pawl abuts against the engagement pawl, the ratchet abuts against the engagement pawl, and the opening rocker arm abuts against the housing through the opening rocker arm return spring; the opening rocker arm is connected with the joint of the opening cable, and the opening cable is installed on the housing; the engagement and connection manner makes the lock body maintain the stable locking state during normal working, and avoids the face mask to be accidentally opened. The connection design of the opening cable and the opening rocker arm is simple and convenient to operate, and responds quickly; only the opening cable needs to be pulled to easily trigger the unlocking action.

[0008] The opening cable is used to drive the opening rocker arm to move; the first stage of the opening rocker arm rotating is used to drive the blocking pawl to move to provide the release space for the engagement pawl; the second stage of the opening rocker arm rotating is used to drive the engagement pawl to move out of the engagement range of the ratchet, and release the ratchet. The first stage provides the space for the release of the engagement pawl, prevents the jamming or impact during unlocking, and improves the opening comfort of the passenger; the second stage accurately makes the engagement pawl move out of the ratchet, and ensures the smooth completion of the unlocking action.

[0009] Preferably, the blocking pawl abuts against the engagement pawl through the convex structure one, and the engagement pawl abuts against the ratchet through the step structure one. The structure design increases the stability and reliability of the contact between the components, and reduces the influence of the external environment on the opening force of the lock body (the release between the ratchet and the engagement pawl).

[0010] Preferably, the opening rocker arm drives the blocking pawl to move through the convex structure two in the first stage of rotating, and the opening rocker arm drives the engagement pawl to move through the convex structure and the step structure two of the engagement pawl in the second stage of rotating. The opening rocker arm can accurately drive the corresponding components to move in different stages, and improves the accuracy and fluency of the unlocking action of the lock body.

[0011] Preferably, the upper cover plate and the lower cover plate are riveted and fastened through the ratchet shaft, the pawl shaft, the mounting column one and the mounting column two, and are connected with the housing. Compared with other connection modes, the riveting mode has higher connection strength, can effectively prevent the components from loosening due to vibration during the driving of the automobile, and guarantees the overall stability and reliability of the face mask lock body.

[0012] Preferably, the mask lock body is mounted to the vehicle body from the front or the back via mounting post one and mounting post two. This flexible assembly method can adapt to the body structure design of different vehicle models, improving the product's versatility and applicability, and reducing assembly costs for automakers.

[0013] Preferably, a buckle shock-absorbing pad is fixed on the housing. The buckle shock-absorbing pad can effectively absorb the vibration and impact generated during vehicle operation, reduce friction and wear between the lock body and the buckle, and the buckle is installed on the cover, reducing noise, improving user experience, and extending the service life of the lock body.

[0014] Preferably, the opening rocker arm, the opening rocker arm return spring, and the engaging pawl are mounted between the upper cover plate and the housing via a pawl shaft. This compact and reasonable installation saves space, facilitates later maintenance and replacement, and improves production and maintenance efficiency.

[0015] This invention provides a car face mask lock body with a double pawl mechanism. In the closed state, the engaging pawl engages with the ratchet, and the engagement characteristic tends towards opening. The disengaging pawl and the engaging pawl abut against each other to prevent the engaging pawl from releasing. When the lock body is opened, the opening rocker arm first pushes the disengaging pawl to create space for the engaging pawl to release, and then pushes the engaging pawl to open and release the ratchet. This structure reduces the influence of the external environment on the lock body's opening force, thereby reducing the lock body's opening force. This invention has a novel and reasonable structure, is safe and compact, has a small size, and allows for flexible lock body installation. The double pawl mechanism reduces the influence of the face mask environment on the internal opening force of the lock body, and makes opening easier, greatly reducing the opening force of the lock body when installed in the vehicle, thus improving passenger opening comfort. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the exploded structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the upper cover plate structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the blocking component structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the present invention in the ratchet engagement state.

[0021] Figure 6 This is a schematic diagram of the ratchet opening process of this utility model. Figure 1 .

[0022] Figure 7This is a schematic diagram of the ratchet opening process of this utility model. Figure 2 .

[0023] Figure 8 This is a schematic diagram of the structure of the present invention after the ratchet is released.

[0024] In the diagram: 1. Top cover plate; 2. Mounting post one; 3. Mounting post two; 4. Ratchet limiting shaft; 5. Disengaging pawl limiting shaft; 6. Ratchet shaft; 7. Locking shock absorber; 8. Pawl shaft; 9. Disengaging pawl shaft; 10. Ratchet; 11. Disengaging pawl; 1101. Raised structure one; 12. Disengaging linkage shaft; 13. Ratchet return spring; 14. Disengaging pawl return spring; 15. Opening rocker arm return spring; 16. Engaging pawl; 1601. Stepped structure one; 1602. Stepped structure two; 17. Opening rocker arm; 1701. Raised structure two; 1702. Boss structure; 18. Housing; 19. Bottom cover plate; 20. Opening cable. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 As shown, this utility model provides a technical solution: a car mask lock body with a double pawl mechanism, including an upper cover plate 1, a housing 18, and a lower cover plate 19. The upper cover plate 1 is provided with a ratchet limiting shaft 4, a blocking pawl limiting shaft 5, and a blocking pawl shaft 9. The blocking pawl shaft 9 is provided with a blocking pawl 11. By precisely setting each limiting shaft, the movement trajectory of the corresponding component can be effectively limited, ensuring the positional accuracy of the blocking pawl 11 during operation, and providing a stable foundation for subsequent locking and unlocking actions.

[0027] like Figure 1 and 2 As shown, the housing 18 is equipped with a ratchet shaft 6, a pawl shaft 8, a mounting post 1 2, and a mounting post 2 3. The ratchet shaft 6 is sequentially equipped with a ratchet return spring 13 and a ratchet 10. The pawl shaft 8 is sequentially equipped with an opening rocker arm 17, an opening rocker arm return spring 15, and an engaging pawl 16. The mounting post 2 3 is equipped with a blocking pawl return spring 14. The ratchet return spring 13 ensures that the ratchet 10 quickly resets after completing its action, guaranteeing the continuous working performance of the lock body. The opening rocker arm return spring 15 allows the opening rocker arm 17 to return to its initial position promptly, facilitating the next operation. The blocking pawl return spring 14 maintains the initial state of the blocking pawl 11, ensuring the stable operation of the entire lock body.

[0028] In the engaged state, the blocking pawl 11 abuts against the engaging pawl 16, the ratchet 10 abuts against the engaging pawl 16, and the opening rocker arm 17 abuts against the housing 18 via the opening rocker arm return spring 15. The opening rocker arm 17 is provided with a circular hole for the opening cable 20 connector, and the left side of the housing 18 is provided with a locking groove for the opening cable 20. This engagement and connection method ensures that the lock body maintains a stable locked state during normal operation, preventing the mask from being accidentally opened. The connection design between the opening cable 20 and the opening rocker arm 17 is simple to operate and responds quickly; simply pulling the opening cable 20 easily triggers the unlocking action.

[0029] The pull cable 20 is used to drive the opening rocker arm 17. The first stage of the rotation of the opening rocker arm 17 is used to drive the movement of the blocking pawl 11 to make room for the release of the engaging pawl 16. The second stage of the rotation of the opening rocker arm 17 is used to drive the engaging pawl 16 out of the engagement range of the ratchet 10, releasing the ratchet 10. The first stage provides space for the release of the engaging pawl 16 to prevent jamming or impact during unlocking, improving the passenger's opening comfort; the second stage precisely disengages the engaging pawl 16 from the ratchet 10 to ensure that the unlocking action is completed smoothly.

[0030] Traditional ratchet mechanisms, where the pawl and ratchet are engaged, are in a "clamped" state, making them highly susceptible to environmental fluctuations affecting the opening force. In contrast, the double-pawl mechanism's pawl and ratchet are engaged in a direction that tends towards opening. During engagement, the opposing pawl and engaging pawl counteract each other, blocking the release trajectory of the engaging pawl and thus ensuring the stability of the engagement (locking). Because the double-pawl mechanism's pawl and ratchet are engaged in a direction that tends towards opening, the impact of the counter-opening force applied to the ratchet by harsh environments on the lock's opening force is reduced compared to traditional mask locks.

[0031] The upper cover plate 1 and the lower cover plate 19 are riveted together by a ratchet shaft 6, a pawl shaft 8, a mounting post 1 2, and a mounting post 2 3, and are connected to the housing 18. Compared with other connection methods, the riveting method has a higher connection strength and can effectively prevent the parts from loosening due to vibration during vehicle operation, thus ensuring the overall stability and reliability of the mask lock body.

[0032] The mask lock body is mounted to the vehicle body from the front or back via mounting post 1 (2) and mounting post 2 (3). This flexible assembly method can adapt to the body structure design of different vehicle models, improving the product's versatility and applicability, and reducing assembly costs for automakers.

[0033] A latch shock absorber 7 is fixed on the housing 18. The latch shock absorber 7 can effectively absorb the vibration and impact generated during vehicle operation, reduce friction and wear between the lock body and the latch, and the latch is installed on the cover, which reduces noise, improves user experience, and also extends the service life of the lock body.

[0034] The rocker arm 17, the rocker arm return spring 15, and the pawl 16 are installed between the upper cover plate 1 and the housing 18 via the pawl shaft 8. The installation is compact and reasonable, saving space and facilitating later maintenance and replacement, thereby improving production and maintenance efficiency.

[0035] like Figure 3 As shown, the upper cover plate 1 is equipped with a ratchet limiting shaft 4, a blocking pawl limiting shaft 5, and a blocking rocker arm shaft 9. The blocking pawl shaft 9 is equipped with a blocking pawl 11. The blocking pawl 11 abuts against the engaging pawl 16 via a protruding structure 1101, and the engaging pawl 16 abuts against the ratchet 10 via a stepped structure 1601. This structural design increases the stability and reliability of the contact between components and reduces the impact of the external environment on the lock body's opening force (the release between the ratchet and the engaging pawl).

[0036] like Figure 4 As shown, the blocking linkage shaft 12 and the blocking pawl 11 are riveted and fixed to form a blocking assembly.

[0037] like Figure 5 As shown, when the ratchet 10 and the engaging pawl 16 are engaged, the blocking pawl 11 abuts against the engaging pawl 16 through the protruding structure 1101, and the engaging pawl 16 abuts against the ratchet 10 through the stepped structure 1601. This mechanism makes the engagement state of the lock body firm and reliable.

[0038] like Figure 6 As shown, when the lock body is opened, the opening cable 20 drives the opening rocker arm 17 to move. The opening rocker arm 17 first drives the blocking component to move through the stepped structure 1602, causing the blocking pawl 11 to move and making room for the release of the engaging pawl 16. In the first stage of rotation, the protruding structure 1701 of the opening rocker arm 17 drives the blocking pawl 11 to move by pushing the blocking linkage shaft 12. In the second stage of rotation, the opening rocker arm 17 is matched with the stepped structure 1602 of the engaging pawl 16 through the boss structure 1702. This ensures that the opening rocker arm 17 can accurately drive the corresponding components to move in different stages, improving the accuracy and smoothness of the lock body unlocking action.

[0039] like Figure 7As shown, after the rocker arm 17 rotates a certain angle through the step structure 1602, it is then matched with the step structure 1602 of the pawl 16 through the boss structure 1702, so that the step structure 1601 of the pawl 16 is completely disengaged from the meshing range of the ratchet 10. The ratchet 10 is naturally released under the action of the ratchet return spring 13, and the ratchet 10 stops after it moves to contact the ratchet limit shaft 4.

[0040] like Figure 8 As shown, in the stationary state after release, the ratchet 10 blocks the pawl 11 from engaging the pawl 16 through the protrusion structure 1101, and the pawl 16 engages the ratchet 10 through the step structure 1601.

[0041] This utility model adopts a double pawl mechanism. In the closed state, the engaging pawl 16 engages with the ratchet 10 and the engagement feature tends to open. The blocking pawl 11 abuts against the engaging pawl 16 to prevent the engaging pawl 16 from being released. When the lock body is opened, the opening rocker arm 17 first pushes the blocking pawl 11 to move to make room for the release of the engaging pawl 16, and then pushes the engaging pawl 16 to open to release the ratchet 10. This structure reduces the influence of the external environment on the lock body opening force, thereby achieving the effect of reducing the lock body opening force.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A face mask lock body for a vehicle with a double pawl mechanism, comprising an upper cover plate (1), a housing (18), a lower cover plate (19), characterized in that: The upper cover plate (1) is provided with a ratchet limiting shaft (4), an open blocking pawl limiting shaft (5), and an open blocking pawl shaft (9), and the open blocking pawl shaft (9) is provided with an open blocking pawl (11). The shell (18) is provided with a ratchet shaft (6), a pawl shaft (8), a mounting column one (2), and a mounting column two (3); the ratchet shaft (6) is sequentially provided with a ratchet return spring (13) and a ratchet (10); the pawl shaft (8) is sequentially provided with an opening rocker arm (17), an opening rocker arm return spring (15), and an engagement pawl (16); and the mounting column two (3) is provided with an open blocking pawl return spring (14). In the engagement state, the open blocking pawl (11) abuts against the engagement pawl (16), the ratchet (10) abuts against the engagement pawl (16), and the opening rocker arm (17) abuts against the shell (18) through the opening rocker arm return spring (15); the opening rocker arm (17) is connected to the joint of the opening cable (20), and the opening cable (20) is installed on the shell (18). The opening cable (20) is used to drive the opening rocker arm (17) to move, and the first stage of the rotation of the opening rocker arm (17) is used to drive the open blocking pawl (11) to move to provide a release space for the engagement pawl (16); the second stage of the rotation of the opening rocker arm (17) is used to drive the engagement pawl (16) to move out of the engagement range of the ratchet (10) to release the ratchet (10).

2. A face mask lock body for a vehicle according to claim 1, wherein: The open blocking pawl (11) abuts against the engagement pawl (16) through a protruding structure one (1101), and the engagement pawl (16) abuts against the ratchet (10) through a stepped structure one (1601).

3. A face mask lock body for a vehicle having a dual pawl mechanism according to claim 2, characterized in that: The opening rocker arm (17) drives the open blocking pawl (11) to move through a protruding structure two (1701) in the first stage of rotation, and the opening rocker arm (17) is transmission matched with the stepped structure two (1602) of the engagement pawl (16) through a boss structure (1702) in the second stage of rotation.

4. The dual pawl mechanism face mask lock body for a vehicle according to claim 1, characterized in that: The upper cover plate (1) and the lower cover plate (19) are riveted and fastened through the ratchet shaft (6), the pawl shaft (8), the mounting column one (2), and the mounting column two (3), and are connected with the shell (18).

5. A face mask lock body for a vehicle having a dual pawl mechanism according to claim 1, characterized in that: The mask lock body is assembled on the vehicle body through the mounting column one (2) and the mounting column two (3) in the front or the back.

6. A face mask lock body for a vehicle having a dual pawl mechanism according to claim 1, characterized in that: The shell (18) is fixed with a lock catch shock pad (7).

7. A face mask lock body for a vehicle having a dual pawl mechanism as defined in claim 1, characterized in that: The opening rocker arm (17), the opening rocker arm return spring (15), and the engagement pawl (16) are installed between the upper cover plate (1) and the shell (18) through the pawl shaft (8).

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