Automobile tail door lock catch and automobile

Abstract

An automobile tail door lock catch comprises a lock catch body, a lock catch installation plate and a vibration isolation assembly, the lock catch body and the lock catch installation plate are fixedly connected into a whole, the lock catch installation plate is installed on a tail door frame metal plate through the vibration isolation assembly, and the vibration isolation assembly is installed on the lock catch installation plate through bolts and nuts. The vibration isolation assembly comprises a flexible vibration isolation part and a rigid connecting part, wherein the flexible vibration isolation part is used for flexibly connecting the vibration isolation assembly with the lock catch mounting plate, and the rigid connecting part is used for rigidly connecting the vibration isolation assembly with the tail door frame metal plate. The lock catch body and the lock catch mounting plate are flexibly connected with the tail door frame metal plate through the flexible vibration isolation part, so that the sealing reaction force when the automobile tail door is closed is reduced, the elastic potential energy reserve when the automobile tail door is closed is further reduced, the conversion from the elastic potential energy to the lock catch vibration is reduced, the unlocking noise is reduced, and the service life of the automobile tail door is prolonged. The device has the advantages of simple structure, low cost, good reliability and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile interior and exterior decoration, in particular to an automobile tailgate lock and an automobile. Background Art

[0002] At present, more and more cars on the market are in line with the development trend of the electrification, automation and interconnection of the automobile industry. A large number of intelligent modules, through-type taillights and reinforced soundproof glass are installed on the tailgate of the car, which leads to a significant increase in the weight of the tailgate and the sealing reaction force of the tailgate system. This poses a severe challenge to the sealing strip, buffer block and support rod system of the tailgate. Due to the increase in sealing reaction force, the elastic potential energy stored when the tailgate is closed increases significantly, resulting in stronger vibration and noise radiation when the tailgate is unlocked, forming a very obvious unlocking noise, affecting the user experience.

[0003] To address this problem, there are currently solutions that dynamically improve the action of unlocking the car tailgate through complex and expensive test structures and servo mechanisms, but they do not consider the improvement of static unlocking noise under the premise of large sealing reaction force, and the overall cost is also high. There is also a technical solution of adding vulcanized rubber or other parts with vibration isolation function to the tailgate lock. Such solutions often have complex processes and poor limiting functions, and are also prone to cause wear and leakage of the sealing strip. Summary of the invention

[0004] The utility model provides a car tailgate lock that adopts a passive control method to improve unlocking noise, comprising a lock body, a lock mounting plate and a vibration isolation assembly, wherein the lock body is fixedly connected with the lock mounting plate as a whole, the lock mounting plate is installed on the tailgate frame sheet metal through the vibration isolation assembly, the vibration isolation assembly is installed on the lock mounting plate through bolts and nuts, and the vibration isolation assembly comprises a flexible vibration isolation part for flexibly connecting the vibration isolation assembly to the lock mounting plate and a rigid connection part for rigidly connecting the vibration isolation assembly to the tailgate frame sheet metal.

[0005] Furthermore, the flexible vibration isolation part includes a first sleeve and a vibration isolation gasket made of flexible material, the vibration isolation gasket is arranged above the first sleeve and the lock mounting plate, the lower end of the vibration isolation gasket is respectively abutted against the upper end of the first sleeve and the upper end of the lock mounting plate, the upper end and lower end of the first sleeve are respectively abutted against the vibration isolation gasket and the tailgate frame sheet metal, the first sleeve is passed through the mounting hole of the lock mounting plate, and the first sleeve is respectively abutted against the circumferential inner edge of the mounting hole and the lower end of the lock mounting plate.

[0006] Further, the first sleeve includes a first small end and a first large end, the first small end is fixedly connected to the first large end, the first large end is extended downward from the first small end and circumferentially outward from the first small end, the first small end is passed through the mounting hole, and the first small end and the first large end are respectively used to abut against the circumferential inner edge of the mounting hole and the lower end of the lock mounting plate.

[0007] Furthermore, the outer wall of the first small end abuts against the circumferential inner edge of the mounting hole, the upper end of the first large end abuts against the lock mounting plate from below the mounting hole, and the lower end of the first large end abuts against the tailgate frame sheet metal.

[0008] Furthermore, the rigid connection part includes a second sleeve made of a rigid material, the second sleeve is inserted into the mounting hole, the second sleeve is coaxially arranged with the first sleeve and the second sleeve is sleeved in the first sleeve, and the upper end and the lower end of the second sleeve are respectively against the bolt and the tailgate frame sheet metal.

[0009] Furthermore, the second sleeve includes a second small end and a second large end, the second small end is fixedly connected to the second large end, the second small end is extended downward from the circumferential inner edge of the second large end, the second small end is passed through the flexible vibration isolation part, and the second small end and the second large end are respectively used to resist the tailgate frame sheet metal and the bolt.

[0010] Furthermore, the outer wall of the second small end abuts against the circumferential inner edge of the first sleeve and the circumferential inner edge of the vibration isolation gasket, the lower end of the second large end abuts against the upper end of the vibration isolation gasket, the upper end of the second large end abuts against the bolt, and the lower end of the second small end abuts against the tailgate frame sheet metal.

[0011] Furthermore, the second sleeve also includes a channel portion, which is opened in the second small end along the axial direction of the second sleeve, and the channel portion is used to limit the bolt in the circumferential direction, and the bolt is axially inserted into the channel portion.

[0012] Furthermore, the second sleeve also includes a guide portion, which is arranged at the circumferential inner edge of the second large end and above the channel portion, and the guide portion is used for axial positioning of the bolt.

[0013] Furthermore, the utility model also includes a car, which includes the aforementioned car tailgate lock, and the car tailgate lock is installed on the tailgate frame sheet metal.

[0014] The automobile tailgate lock provided by the utility model flexibly connects the lock body together with the lock mounting plate to the tailgate frame sheet metal through a flexible vibration isolation part, thereby reducing the sealing reaction force when the automobile tailgate is closed, thereby reducing the elastic potential energy reserve when the automobile tailgate is closed, reducing the conversion of elastic potential energy to lock vibration, and reducing unlocking noise. The automobile tailgate lock of the utility model also connects and fixes the vibration isolation assembly to the tailgate frame sheet metal through a rigid connection part, while providing positioning for the lock mounting plate, and preventing the lock body installation torque from failing with a reliable rigid connection. The automobile tailgate lock of the utility model adopts a passive control method. Compared with the active control technical solution, it does not require data acquisition, servo mechanism and control unit, nor does it require vulcanization process and other complex limiting parts. It has the advantages of simple structure, low cost, good reliability, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the automobile tailgate lock provided by the utility model.

[0016] Figure 2 The utility model is a side view of the automobile tailgate lock buckle.

[0017] Figure 3 It is an AA cross-sectional view of the automobile tailgate lock in the utility model.

[0018] Figure 4 The utility model is a cross-sectional view of the automobile tailgate lock, bolts, nuts and tailgate frame sheet metal.

[0019] Figure 5 It is a schematic diagram of the vibration isolation assembly in the utility model.

[0020] Figure 6 It is a schematic diagram of the tailgate vibration effect of the automobile tailgate lock in the utility model.

[0021] Figure 7 It is a schematic diagram of the tailgate noise effect of the automobile tailgate lock in the utility model. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the present invention is described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0023] It should be noted that the terms "first", "second", "third", "fourth", etc. in the specification and claims of the utility model are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0024] See also Figure 1 and Figure 2The automobile tailgate lock in the utility model is suitable for new energy vehicles, hybrid vehicles and other vehicles with similar tailgate structures, and is located on the tailgate frame sheet metal 7 of the lower frame of the automobile tailgate. The automobile tailgate lock in the utility model includes a lock body 1, a lock mounting plate 2 and a vibration isolation assembly. The lock body 1 is fixedly connected with the lock mounting plate 2. The lock mounting plate 2 is installed on the tailgate frame sheet metal 7 through the vibration isolation assembly. The vibration isolation assembly is installed on the lock mounting plate 2 through bolts 5 and nuts 6. The vibration isolation assembly includes a flexible vibration isolation part 3 for flexibly connecting the vibration isolation assembly to the lock mounting plate 2 and a rigid connection part 4 for rigidly connecting the vibration isolation assembly to the tailgate frame sheet metal 7. Specifically, the lock mounting plate 2 is installed on the tailgate frame sheet metal 7 through the vibration isolation assembly, and the vibration isolation assembly is installed on the lock mounting plate 2 through bolts 5 and nuts 6. Therefore, the lock mounting plate 2 is also installed on the tailgate frame sheet metal 7 through bolts 5 and nuts 6. The lock mounting plate 2, the vibration isolation assembly, the bolts 5, the nuts 6 and the tailgate frame sheet metal 7 are fixedly connected as one; the flexible vibration isolation part 3 in the vibration isolation assembly flexibly connects the vibration isolation assembly with the lock mounting plate 2. When the tailgate of the car is opened and closed, the elastic potential energy of the tailgate of the car is mainly transmitted to the car body through the lock body 1 and the lock mounting plate 2 integrally formed therewith, and the lock mounting plate 2 is connected to the tailgate frame sheet metal 7 through the lock body 1 and the lock mounting plate 2 integrally formed therewith. The vibration isolation assembly having a flexible vibration isolation portion 3 is connected to the tailgate frame sheet metal 7, and thus the vibration isolation assembly is flexibly connected to the lock mounting plate 2, which can effectively reduce the elastic potential energy generated by opening and closing the tailgate, thereby reducing the unlocking noise; the rigid connection portion 4 in the vibration isolation assembly rigidly connects the vibration isolation assembly to the tailgate frame sheet metal 7, and since the lock mounting plate 2 is installed on the tailgate frame sheet metal 7 by bolts 5 and nuts 6, a rigid connection is formed between the rigid connection portion 4, the bolts 5, the nuts 6 and the tailgate frame sheet metal 7, so that the connection between the automobile tailgate lock and the tailgate frame sheet metal 7 in the utility model is firm and reliable, preventing parts from loosening and failing.

[0025] Please also read Figures 3 to 7 The flexible vibration isolation part 3 includes a first sleeve 31 made of flexible material and a vibration isolation gasket 32. The vibration isolation gasket 32 ​​is arranged above the first sleeve 31 and the lock mounting plate 2. The lower end of the vibration isolation gasket 32 ​​is respectively abutted against the upper end of the first sleeve 31 and the upper end of the lock mounting plate 2. The upper and lower ends of the first sleeve 31 are respectively abutted against the vibration isolation gasket 32 ​​and the tailgate frame sheet metal 7. The first sleeve 31 is inserted into the mounting hole 21 of the lock mounting plate 2. The first sleeve 31 is respectively abutted against the circumferential inner edge of the mounting hole 21 and the lower end of the lock mounting plate 2. The rigid connection part 4 includes a second sleeve 41 made of rigid material. The second sleeve 41 is inserted into the mounting hole 21. The second sleeve 41 is coaxially arranged with the first sleeve 31 and the second sleeve 41 is sleeved in the first sleeve 31. The upper and lower ends of the second sleeve 41 are respectively abutted against the bolt 5 and the tailgate frame sheet metal 7. Specifically, the instructions are attached Figure 3 And the instruction manual Figure 4 With the same cross-sectional perspective, Figure 3 A cross-sectional view of a tailgate latch is shown, and Figure 4 A cross-sectional view of a tailgate lock catch, bolts 5, nuts 6 and a tailgate frame sheet metal 7 is shown. In this embodiment, the first sleeve 31 is an inverted "T"-shaped hollow structure with a small upper part and a large lower part. The vibration isolation gasket 32 ​​is combined with the first sleeve 31 above it to form an approximately "I"-shaped hollow structure. The upper and lower ends of the lock mounting plate 2 are respectively abutted against the lower end of the vibration isolation gasket 32 ​​and the first sleeve 31, and the circumferential inner edge, upper end and lower end of the mounting hole 21 are wrapped by the vibration isolation gasket 32 ​​and the first sleeve 31. That is to say, the lock mounting plate 2 is clamped between the vibration isolation gasket 32 ​​and the first sleeve 31. The parts of the lock mounting plate 2 that directly contact the vibration isolation assembly are all made of flexible materials. The lock mounting plate 2 forms a flexible connection with the vibration isolation assembly through the flexible vibration isolation part 3, so that the lock body 1 is separated from the rigid connection with the vehicle body, reducing the sealing reaction force when the car tailgate is closed, thereby reducing the elastic potential energy reserve when the car tailgate is closed, reducing the conversion of elastic potential energy to lock vibration, reducing unlocking noise, and also reducing the wear of the tailgate sealing strip to a certain extent. Similarly, the second sleeve 41 in the present embodiment is an upright "T"-shaped hollow structure that is larger at the top and smaller at the bottom. The second sleeve 41 is coaxially arranged with the first sleeve 31 and the second sleeve 41 is sleeved in the first sleeve 31 that is approximately "I"-shaped. The upper and lower ends of the second sleeve 41 are rigidly connected with the bolt 5, nut 6 and tailgate frame sheet metal 7 respectively and are not in direct contact with the lock mounting plate 2. While providing positioning for the lock mounting plate 2, a reliable rigid connection is used to prevent failure of the installation torque of the lock body 1.

[0026] Further, the first sleeve 31 includes a first small end 311 and a first large end 312, the first small end 311 and the first large end 312 are integrally connected, the first large end 312 is obtained by extending the first small end 311 downward and outward in the circumferential direction of the first small end 311, the first small end 311 is inserted into the mounting hole 21, and the first small end 311 and the first large end 312 are respectively used to abut against the circumferential inner edge of the mounting hole 21 and the lower end of the lock mounting plate 2. The outer wall of the first small end 311 abuts against the circumferential inner edge of the mounting hole 21, the upper end of the first large end 312 abuts against the lock mounting plate 2 from the bottom of the mounting hole 21, and the lower end of the first large end 312 abuts against the tailgate frame sheet metal 7. Specifically, in this embodiment, the first sleeve 31 is an inverted "T"-shaped hollow structure with a small top and a large bottom. The circumferential inner edge, the upper end and the lower end of the mounting hole 21 of the lock mounting plate 2 are wrapped by the flexible vibration isolation part 3, and the vibration isolation assembly is thus flexibly connected to the lock mounting plate 2. The vibration isolation gasket 32 ​​and the first sleeve 31 in this embodiment are preferably made of rubber or metal mesh, and can also be made of similar materials of different hardness according to different vehicle models, and are detachable universal parts.

[0027] Furthermore, the second sleeve 41 includes a second small end 411, a second large end 412, a channel portion 413 and a guide portion 414. The second small end 411 is fixedly connected to the second large end 412. The second small end 411 is extended downward from the circumferential inner edge of the second large end 412. The second small end 411 is inserted into the flexible vibration isolation portion 3. The second small end 411 and the second large end 412 are respectively used to resist the tailgate frame sheet metal 7 and the bolt 5. The outer wall of the second small end 411 abuts against the circumferential inner edge of the first sleeve 31 and the circumferential inner edge of the vibration isolation gasket 32, the lower end of the second large end 412 abuts against the upper end of the vibration isolation gasket 32, the upper end of the second large end 412 abuts against the bolt 5, the lower end of the second small end 411 abuts against the tailgate frame sheet metal 7, the channel portion 413 is opened in the second small end 411 along the axial direction of the second sleeve 41, the channel portion 413 is used to limit the bolt 5 along the circumferential direction, the bolt 5 is axially penetrated in the channel portion 413, the guide portion 414 is arranged at the circumferential inner edge of the second large end 412 and above the channel portion 413, and the guide portion 414 is used to axially position the bolt 5. Specifically, in this embodiment, the second sleeve 41, the bolt 5, the nut 6 and the tailgate frame sheet metal 7 are all made of rigid materials. The second sleeve 41, together with the bolt 5, the nut 6 and the tailgate frame sheet metal 7, wraps the flexible vibration isolation part 3 and is rigidly connected to the vehicle body, so that the vibration isolation assembly can be used to install and fix the tailgate lock of the automobile. The second sleeve 41 in this embodiment is preferably made of metal.

[0028] When assembling the automobile tailgate lock in the utility model, first, insert the vibration isolation gasket 32 ​​from the bottom to the outside of the second small end 411 and under the second large end 412 of the second sleeve 41, and then insert the first small end 311 of the first sleeve 31 into the mounting hole 21 from the bottom, while ensuring that the first large end 312 of the first sleeve 31 abuts against the mounting hole 21 from the bottom, and then insert the second sleeve 41 together with the vibration isolation gasket 32 ​​into the first sleeve 31 from top to bottom, so that the vibration isolation gasket 32 ​​abuts against the small end of the second sleeve 41, and finally use the channel part 413 and the guide part 414 in the second sleeve 41 to guide the bolt 5 into the center of the second sleeve 41, and tighten the bolt 5 and the nut 6 to complete the assembly of the automobile tailgate lock and the tailgate frame sheet metal 7.

[0029] Furthermore, the utility model also includes a car, which includes the aforementioned car tailgate lock, and the car tailgate lock is installed on the tailgate frame sheet metal.

[0030] In summary, the automobile tailgate lock of the utility model flexibly connects the lock body together with the lock mounting plate to the tailgate frame sheet metal through a flexible vibration isolation part, thereby reducing the sealing reaction force when the automobile tailgate is closed, thereby reducing the elastic potential energy reserve when the automobile tailgate is closed, reducing the conversion of elastic potential energy to lock vibration, and reducing unlocking noise. The automobile tailgate lock of the utility model also connects and fixes the vibration isolation assembly to the tailgate frame sheet metal through a rigid connection part, while providing positioning for the lock mounting plate, and preventing the lock body installation torque from failing with a reliable rigid connection. The automobile tailgate lock of the utility model adopts a passive control method. Compared with the active control technical solution, it does not require data acquisition, servo mechanism and control unit, nor does it require vulcanization process and other complex limiting parts. It has the advantages of simple structure, low cost and good reliability.

[0031] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A car tailgate lock, characterized by: The invention comprises a lock body (1), a lock mounting plate (2) and a vibration isolation assembly, wherein the lock body (1) is integrally connected with the lock mounting plate (2), the lock mounting plate (2) is mounted on a tailgate frame sheet metal (7) via the vibration isolation assembly, the vibration isolation assembly is mounted on the lock mounting plate (2) via bolts (5) and nuts (6), and the vibration isolation assembly comprises a flexible vibration isolation portion (3) for flexibly connecting the vibration isolation assembly to the lock mounting plate (2) and a rigid connection portion (4) for rigidly connecting the vibration isolation assembly to the tailgate frame sheet metal (7).

2. The automobile tailgate lock as claimed in claim 1, characterized in that: The flexible vibration isolation part (3) comprises a first sleeve (31) and a vibration isolation gasket (32) made of a flexible material. The vibration isolation gasket (32) is arranged above the first sleeve (31) and the lock mounting plate (2). The lower end of the vibration isolation gasket (32) is respectively abutted against the upper end of the first sleeve (31) and the upper end of the lock mounting plate (2). The upper end and the lower end of the first sleeve (31) are respectively abutted against the vibration isolation gasket (32) and the tailgate frame sheet metal (7). The first sleeve (31) is inserted into the mounting hole (21) of the lock mounting plate (2). The first sleeve (31) is respectively abutted against the circumferential inner edge of the mounting hole (21) and the lower end of the lock mounting plate (2).

3. The automobile tailgate lock as claimed in claim 2, characterized in that: The first sleeve (31) comprises a first small end (311) and a first large end (312), the first small end (311) and the first large end (312) being integrally connected, the first large end (312) extending downward from the first small end (311) and outward from the circumference of the first small end (311), the first small end (311) being inserted into the mounting hole (21), the first small end (311) and the first large end (312) being respectively used to abut against the circumferential inner edge of the mounting hole (21) and the lower end of the lock mounting plate (2).

4. The automobile tailgate lock as claimed in claim 3, characterized in that: The outer wall of the first small end (311) abuts against the circumferential inner edge of the mounting hole (21), the upper end of the first large end (312) abuts against the lock mounting plate (2) from below the mounting hole (21), and the lower end of the first large end (312) abuts against the tailgate frame sheet metal (7).

5. The automobile tailgate lock as claimed in claim 2, characterized in that: The rigid connection portion (4) comprises a second sleeve (41) made of a rigid material, the second sleeve (41) being inserted into the mounting hole (21), the second sleeve (41) being coaxially arranged with the first sleeve (31) and sleeved in the first sleeve (31), the upper end and the lower end of the second sleeve (41) respectively abutting against the bolt (5) and the tailgate frame sheet metal (7).

6. The automobile tailgate lock as claimed in claim 5, characterized in that: The second sleeve (41) comprises a second small end (411) and a second large end (412); the second small end (411) is integrally connected with the second large end (412); the second small end (411) is extended downward from the circumferential inner edge of the second large end (412); the second small end (411) is inserted into the flexible vibration isolation part (3); the second small end (411) and the second large end (412) are respectively used to abut against the tailgate frame sheet metal (7) and the bolt (5).

7. The automobile tailgate lock as claimed in claim 6, characterized in that: The outer wall of the second small end (411) abuts against the circumferential inner edge of the first sleeve (31) and the circumferential inner edge of the vibration isolation gasket (32), the lower end of the second large end (412) abuts against the upper end of the vibration isolation gasket (32), the upper end of the second large end (412) abuts against the bolt (5), and the lower end of the second small end (411) abuts against the tailgate frame sheet metal (7).

8. The automobile tailgate lock as claimed in claim 6, characterized in that: The second sleeve (41) further comprises a channel portion (413), wherein the channel portion (413) is opened in the second small end (411) along the axial direction of the second sleeve (41), and the channel portion (413) is used to limit the bolt (5) in the circumferential direction, and the bolt (5) is axially inserted into the channel portion (413).

9. The automobile tailgate lock as claimed in claim 8, characterized in that: The second sleeve (41) further comprises a guide portion (414), wherein the guide portion (414) is arranged at the circumferential inner edge of the second large end (412) and above the channel portion (413), and the guide portion (414) is used for axially positioning the bolt (5).

10. An automobile, characterized in that: It comprises the automobile tailgate lock as claimed in any one of claims 1 to 9, wherein the automobile tailgate lock is installed on the tailgate frame sheet metal (7).

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