Low-rigidity automobile tail door lock catch and automobile

Abstract

The utility model discloses a low-rigidity automobile tail door lock catch and an automobile, and belongs to the technical field of automobile parts, the low-rigidity automobile tail door lock catch comprises a U-shaped rod and a connecting piece, the two connecting ends of the U-shaped rod are installed in the middle of the connecting piece to form a lock ring structure, through holes are formed in the two ends of the connecting piece, and rubber parts are arranged on the peripheries and the inner walls of the through holes in an injection molding mode. A mounting hole is formed by the rubber part, an inner core is clamped at the mounting hole, and a gap is formed between a part of the inner wall surface of the mounting hole and the peripheral surface of the inner core. The lock catch structure is optimized, so that the rigidity of the lock catch is adjusted to a proper range, and the booming problem in the automobile running process is solved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to a low-rigidity automobile tailgate latch and an automobile. Background Art

[0002] When the vehicle is driving on a rough road, the ground excitation is transmitted to the tailgate through the chassis, which stimulates the X-direction vibration of the tailgate and compresses the sound cavity, causing a roaring sound in the first and third rows of the cabin, affecting the driving experience; the silent lock can effectively reduce the excitation size on the key transmission path, reduce the X-direction vibration of the tailgate through the vibration isolation function, and ultimately improve the NVH performance of the entire vehicle, playing a "silent" role.

[0003] Related prior art, such as the Chinese patent application "Lock structure and door lock structure", application number: CN202221861504.9; discloses that the lock structure includes: a connecting seat, a U-shaped rod and a connecting piece; the connecting seat includes a plurality of rigid bushings connected to the vehicle body, each of the rigid bushings is provided with a rubber sleeve, and the plurality of rigid bushings are symmetrically arranged on both sides of the U-shaped rod; both ends of the U-shaped rod are mounted on the connecting piece to form a locking ring structure, and each of the rubber sleeves is connected to the connecting piece. The lock structure uses a rigid bushing to rigidly connect the lock structure to the vehicle body, which can effectively reduce the risk of torque attenuation. At the same time, the rubber sleeve mounted on the rigid bushing is used to make the lock structure have good vibration reduction and noise reduction performance. The structure of the connecting seat can ensure that the lock structure is stably and reliably installed on the vehicle body, and does not affect its own vibration reduction and noise reduction work.

[0004] In actual application, it was found that the overall rigidity of the lock structure of the above patent application was too large, and noise problems would occur during the driving of the car. Utility Model Content

[0005] The technical problem to be solved by the present application is to provide a low-rigidity automobile tailgate lock and an automobile, optimize the lock structure, adjust the lock's rigidity to a suitable range, and solve the noise problem during the driving of the automobile.

[0006] The technical solution adopted in the present application is: a low-rigidity automobile tailgate lock and automobile, including a U-shaped rod and a connecting piece, both ends of the U-shaped rod are installed on the middle part of the connecting piece to form a locking ring structure, both ends of the connecting piece are provided with through holes, the outer periphery and inner wall of the through hole are injection-molded with rubber parts, the rubber parts constitute the mounting hole, the mounting hole is clamped with an inner core, and there is a gap between part of the inner wall surface of the mounting hole and the outer periphery of the inner core.

[0007] Compared with the prior art, the advantages of the present application are that, firstly, there is a gap between the inner wall surface of the mounting hole and the outer peripheral surface of the inner core in the present application, which reduces the contact area between the rubber part and the inner core, which will effectively reduce the rigidity of the product and turn it into a low rigidity design. Secondly, the two end surfaces of the connecting piece in the present application are injection molded with rubber parts, that is, the rubber part and the connecting piece are fixedly connected, so that the rubber part has high stability and strong reliability in the present application. Due to its own material, the rubber part is easy to deform when subjected to force, and thus achieves the effect of shock absorption and buffering. However, if the rubber part is molded separately and then assembled with the connecting piece, it is difficult to ensure the reliability and stability of the rubber part installation after the rubber part is subjected to force, resulting in unstable performance of the product. Thirdly, the inner core and the rubber part of the present application are assembled by clamping, that is, the structure of non-fixed connection between the two, so when the rubber part is subjected to force and deformation, relative displacement can be generated between the rubber part and the inner core, and the assembled structure can achieve low rigidity and solve the noise problem during the driving process of the car. Finally, in the actual application of the product of this application, the inner core will be assembled with the vehicle's lock bracket. When the lock bracket moves, the rubber part is only compressed. The compression performance of the rubber part of this application is better than the tensile performance, so the durability of this application is better. In summary, this application further optimizes the lock structure, so that the rigidity of the lock is adjusted to an appropriate range, solving the noise problem during the driving of the car.

[0008] In some embodiments of the present application, the connecting piece has a runway-shaped structure as a whole, and the two side surfaces of the connecting piece in the length direction are semicircular structures, and the central axis of the through hole and the central axes of the two side surfaces of the connecting piece are located on the same straight line.

[0009] In some embodiments of the present application, the length direction of the bottom bar of the U-shaped bar is perpendicular to the length direction of the connecting piece, and the connecting piece is provided with an extension piece at the connection of the U-shaped bar and outwardly along the width direction of the connecting piece. The bottom bar of the U-shaped bar is a structure that connects two support bars and forms the bottom of the U-shaped bar. In fact, the bottom bar of the U-shaped bar and the connecting piece are not in the same plane, so specifically, the length directions of the bottom bar of the U-shaped bar and the connecting piece are skewed and perpendicular.

[0010] In some embodiments of the present application, the extension piece and the connecting piece are integrally formed, and the outer edge of the extension piece is a curved surface. Specifically, by providing the extension piece, the structural strength of the connection between the U-shaped rod and the connecting piece can be further improved to ensure the reliability of the connection.

[0011] In some embodiments of the present application, the longitudinal section of the inner core along the axial direction is a hollow I-shaped structure; the inner core includes a top ring, a middle tube and a bottom ring, and the top ring and the bottom ring are connected to both ends of the terminal. Specifically, the inner core with an I-shaped structure can ensure that the clamping relationship between the inner core and the rubber part is reliable, and the inner core will not fall off easily.

[0012] In order to facilitate assembly, the present application can adopt the top ring and the middle tube to be integrally formed, and the inner wall of the top ring and the inner wall of the middle tube are connected by a chamfered surface, so that the bottom ring can be assembled with the middle tube after the middle tube is inserted into the mounting hole.

[0013] In some embodiments of the present application, both end faces of the mounting hole are provided with an annular groove for accommodating the top ring or the bottom ring, and the inner bottom face of the annular groove is provided with a plurality of convex ribs, which are arranged along the radial direction of the annular groove. A convex rib structure is designed on the inner bottom face of the annular groove formed by the rubber member, so that the inner core and the annular groove formed by the rubber are not in integral contact, further reducing the rigidity.

[0014] In some embodiments of the present application, the inner wall surface of the mounting hole is protruded with a convex ring, the convex ring covers the bottom of the mounting hole, the top surface of the convex ring is located in the middle of the mounting hole, the top surface of the convex ring is a non-planar structure, and the convex ring is connected to the inner core by interference fit. The present application adds a convex ring structure to reduce the contact area between the outer peripheral surface of the inner core and the inner wall surface of the mounting hole formed by the rubber member, further reducing the rigidity.

[0015] In some embodiments of the present application, the rubber piece wrapped around the end of the connecting piece is overall U-shaped; the top surface of the rubber piece is flush with the top surface of the inner core, and an arc segment depression is provided at the bottom edge of the rubber piece.

[0016] In the present application, the structure of the rubber part is further optimized so that it has appropriate stiffness while meeting product performance requirements.

[0017] In some embodiments of the present application, the connecting piece is convex upward at the connection with the U-shaped rod to form a curved surface, which effectively improves the structural strength of the connecting piece and makes the connection with the U-shaped rod more stable and reliable.

[0018] The above-mentioned implementation modes can be combined arbitrarily based on the common knowledge in the art.

[0019] A car comprises a tailgate, wherein the tailgate is provided with the low-rigidity car tailgate lock buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the structure of this application;

[0022] Figure 2 for Figure 1 Sectional view of section AA;

[0023] Figure 3 for Figure 1 Sectional view of the middle BB section;

[0024] Figure 4 This is a partial structural diagram of this application.

[0025] Among them, the specific descriptions of the accompanying drawings are as follows: 1. U-shaped rod; 1a. bottom rod; 2. connecting plate; 2a. extension plate; 3. through hole; 4. rubber part; 41. annular groove; 42. convex rib; 43. convex ring; 44. depression; 5. mounting hole; 6. inner core; 61. top ring; 62. middle cylinder; 63. bottom ring. DETAILED DESCRIPTION

[0026] The present application is described in detail below in conjunction with the accompanying drawings.

[0027] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] A low-rigidity automobile tailgate lock and automobile, an embodiment of the invention is as follows Figures 1 to 3 As shown: it includes a U-shaped rod 1 and a connecting piece 2, both ends of the U-shaped rod 1 are installed on the middle part of the connecting piece 2 to form a locking ring structure, and both ends of the connecting piece 2 are provided with through holes 3, and the outer periphery and inner wall of the through hole 3 are injection-molded with rubber parts 4. That is, the rubber part 4 is fixedly connected with the connecting piece 2, so that the rubber part 4 has high stability and strong reliability in this application. Due to its own material, the rubber part 4 is easily deformed when subjected to force, thereby achieving the effect of shock absorption and buffering. However, if the rubber part 4 is molded separately and then assembled with the connecting piece 2, it is difficult to ensure the reliability and stability of the installation of the rubber part 4 after the rubber part 4 is subjected to force, resulting in unstable performance of the product.

[0029] The rubber part 4 forms a mounting hole 5, and an inner core 6 is snapped into the mounting hole 5. There is a gap between part of the inner wall surface of the mounting hole 5 and the outer peripheral surface of the inner core 6. The contact area between the outer peripheral surface of the inner core 6 and the inner wall surface of the mounting hole 5 formed by the rubber part 4 is reduced, and the rigidity of the product is effectively reduced, and a low rigidity design is adopted. The inner core 6 and the rubber part 4 of the present application are snap-fitted and assembled, that is, the structure between the two is not fixedly connected. Then, when the rubber part 4 is deformed by force, relative displacement can occur between the rubber part 4 and the inner core 6. The assembled structure can achieve low rigidity and solve the noise problem during the driving of the car.

[0030] In the actual application of the product of the present application, the inner core 6 will be assembled with the locking bracket of the vehicle. When the locking bracket moves, the rubber part 4 is only compressed. The compression performance of the rubber part 4 of the present application is better than the tensile performance, so the durability of the present application is better. In summary, the present application further optimizes the locking structure, so that the rigidity of the locking is adjusted to a suitable range, solving the noise problem during the driving of the car.

[0031] Embodiment 2, as Figures 1 to 4 As shown, the connecting piece 2 is in a runway-shaped structure as a whole, and the two side surfaces of the connecting piece 2 in the length direction are semicircular structures, and the central axis of the through hole 3 and the central axes of the two side surfaces of the connecting piece 2 are located on the same straight line.

[0032] The length direction of the bottom bar 1a of the U-shaped bar 1 is perpendicular to the length direction of the connecting piece 2. The connecting piece 2 is provided with an extension piece 2a at the connection of the U-shaped bar 1 and outward along the width direction of the connecting piece 2. The bottom bar 1a of the U-shaped bar 1 is a structure that connects two support bars and forms the bottom of the U-shaped bar. In fact, the bottom bar 1a of the U-shaped bar 1 and the connecting piece 2 are not in the same plane, so specifically, the length directions of the bottom bar 1a of the U-shaped bar 1 and the connecting piece 2 are skewed and perpendicular.

[0033] The extension piece 2a is integrally formed with the connecting piece 2, and the outer edge of the extension piece 2a is a curved surface. Specifically, the configuration of the extension piece 2a can further improve the structural strength of the connection between the U-shaped rod 1 and the connecting piece 2, thereby ensuring the reliability of the connection.

[0034] The connecting piece 2 is convex upward at the connection with the U-shaped rod 1 to form a curved surface, which effectively improves the structural strength of the connecting piece 2 and makes the connection with the U-shaped rod 1 more stable and reliable.

[0035] The rest of the content of the second embodiment is the same as that of the first embodiment.

[0036] Embodiment three, as Figures 2 to 4 As shown, the inner core 6 has a hollow I-shaped structure in the longitudinal section along the axial direction; the inner core 6 includes a top ring 61, a middle tube 62 and a bottom ring 63, and the top ring 61 and the bottom ring 63 are connected to the two ends of the terminal. Specifically, the inner core 6 with an I-shaped structure can ensure that the clamping relationship between the inner core 6 and the rubber member 4 is reliable, and the inner core 6 will not fall off easily.

[0037] In order to facilitate assembly, the present application can adopt the top ring 61 and the middle tube 62 to be integrally formed, and the inner wall of the top ring 61 and the inner wall of the middle tube 62 are connected by a chamfered surface, so that the bottom ring 63 can be assembled with the middle tube 62 after the middle tube 62 is inserted into the mounting hole 5.

[0038] Both end surfaces of the mounting hole 5 are provided with an annular groove 41 for accommodating the top ring 61 or the bottom ring 63, and the inner bottom surface of the annular groove 41 is provided with a plurality of convex ribs 42, which are arranged along the radial direction of the annular groove 41. The convex rib 42 structure is designed on the inner bottom surface of the annular groove 41 formed by the rubber member 4, so that the inner core 6 and the annular groove 41 formed by the rubber are not in integral contact, further reducing the rigidity.

[0039] The inner wall surface of the mounting hole 5 is protruded with a circle of convex ring 43, the convex ring 43 covers the bottom of the mounting hole 5, the top surface of the convex ring 43 is located in the middle of the mounting hole 5, the top surface of the convex ring 43 is a non-planar structure, and the convex ring 43 is connected with the inner core 6 by interference fit. The present application adds a convex ring 43 structure to reduce the contact area between the outer peripheral surface of the inner core 6 and the inner wall surface of the mounting hole 5 formed by the rubber member 4, further reducing the rigidity.

[0040] The rubber member 4 wrapped around the end of the connecting piece 2 is in a U-shaped structure; the top surface of the rubber member 4 is flush with the top surface of the inner core 6, and an arc segment depression 44 is provided at the bottom edge of the rubber member 4. In the present application, the structure of the rubber member 4 is further optimized so that it has appropriate rigidity while meeting the product performance.

[0041] The other contents of the third embodiment are the same as those of the first embodiment or the second embodiment.

[0042] A car comprises a tailgate, wherein the tailgate is provided with the low-rigidity car tailgate lock buckle.

[0043] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A low-rigidity automobile tailgate lock, characterized in that: The invention comprises a U-shaped rod (1) and a connecting piece (2), wherein both ends of the U-shaped rod (1) are mounted on the middle part of the connecting piece (2) to form a locking ring structure, and both ends of the connecting piece (2) are provided with through holes (3), and the outer periphery and inner wall of the through hole (3) are injection-molded with rubber parts (4), and the rubber parts (4) form a mounting hole (5), and an inner core (6) is clamped at the mounting hole (5), and a gap exists between a part of the inner wall surface of the mounting hole (5) and the outer periphery surface of the inner core (6).

2. A low-rigidity automobile tailgate lock according to claim 1, characterized in that: The connecting piece (2) is of a runway-shaped structure as a whole, and the two side surfaces of the connecting piece (2) in the length direction are semicircular structures. The central axis of the through hole (3) and the central axes of the two side surfaces of the connecting piece (2) are located on the same straight line.

3. A low-rigidity automobile tailgate lock according to claim 1 or 2, characterized in that: The length direction of the bottom rod (1a) of the U-shaped rod (1) is perpendicular to the length direction of the connecting piece (2), and the connecting piece (2) is provided with an extension piece (2a) at the connection point of the U-shaped rod (1) and outwardly along the width direction of the connecting piece (2).

4. A low-rigidity automobile tailgate latch according to claim 3, characterized in that: The extension piece (2a) and the connecting piece (2) are integrally formed, and the outer edge of the extension piece (2a) is a curved surface.

5. The low-rigidity automobile tailgate latch according to claim 1, characterized in that: The inner core (6) has a hollow I-shaped structure in a longitudinal section along the axial direction; the inner core (6) comprises a top ring (61), a middle tube (62) and a bottom ring (63), and the top ring (61) and the bottom ring (63) are connected to both ends of the terminal.

6. A low-rigidity automobile tailgate latch according to claim 5, characterized in that: Both end surfaces of the mounting hole (5) are provided with an annular groove (41) for accommodating a top ring (61) or a bottom ring (63), and the inner bottom surface of the annular groove (41) is provided with a plurality of convex ribs (42), which are arranged along the radial direction of the annular groove (41).

7. The low-rigidity automobile tailgate latch according to claim 1, characterized in that: The inner wall surface of the mounting hole (5) is protrudingly provided with a circle of convex ring (43), the convex ring (43) covers the bottom of the mounting hole (5), the top surface of the convex ring (43) is located in the middle of the mounting hole (5), the top surface of the convex ring (43) is a non-planar structure, and the convex ring (43) is connected to the inner core (6) by interference fit.

8. The low-rigidity automobile tailgate latch according to claim 1, characterized in that: The rubber piece (4) wrapped around the end of the connecting piece (2) is formed into a U-shaped structure as a whole; the top surface of the rubber piece (4) is flush with the top surface of the inner core (6), and an arc segment depression (44) is provided at the bottom edge of the rubber piece (4).

9. The low-rigidity automobile tailgate latch according to claim 1, characterized in that: The connecting piece (2) protrudes upwards at the connection with the U-shaped rod (1) to form a curved surface.

10. An automobile, characterized in that: The invention comprises a tailgate, wherein the tailgate is provided with a low-rigidity automobile tailgate lock buckle as claimed in any one of claims 1 to 9.

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