Automobile seat backrest lock bolt lock port buffer block mounting structure

Abstract

The utility model discloses a kind of buffer block mounting structures of automobile seat backrest lock bolt lock mouth, including mounting seat, cover plate being set on mounting seat and buffer block being set on cover plate, the mounting seat and cover plate are all set with the lock mouth for lock catch to extend into cooperation, L-shaped connecting edge is shaped in the position corresponding to lock mouth to the side of cover plate towards lock catch abuts, the buffer block is set with the L-shaped card slot for with L-shaped connecting edge assembly, after L-shaped card slot and L-shaped connecting edge assembly are completed, the fixation with cover plate is realized, and L-shaped card slot inside is set with the avoiding surface that facilitates assembly installation in the position corresponding to the inside bending of L-shaped connecting edge, the avoiding surface is cambered surface or inclined plane. Through the above-mentioned buffer block mounting structure, the stability of buffer block and cover plate connection can be improved, and the installation of buffer block is also facilitated.

Description

Technical Field

[0001] This utility model relates to a buffer block installation structure for the locking port of a car seat back latch. Background Technology

[0002] Most existing car seat backrest latch buffer blocks are fixed to the cover plate at the latch using a flat groove snap-fit ​​or adhesive method. Since the buffer block needs to withstand impact during use, it is prone to loosening after long-term wear and tear and will produce abnormal noise during use. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a buffer block installation structure for the locking bolt of a car seat back, so as to improve the stability of the connection between the buffer block and the cover plate, and at the same time facilitate the installation of the buffer block.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a buffer block installation structure for a car seat back latch, comprising a mounting base, a cover plate disposed on the mounting base, and a buffer block disposed on the cover plate. Both the mounting base and the cover plate are provided with a latch for the latch to extend into and engage. The cover plate has an L-shaped connecting edge formed on the side facing the latch and corresponding to the latch position. The buffer block is provided with an L-shaped groove for assembling with the L-shaped connecting edge. After the L-shaped groove and the L-shaped connecting edge are assembled, they are fixed to the cover plate. Furthermore, the inside of the L-shaped groove, corresponding to the inner bending position of the L-shaped connecting edge, is provided with a relief surface that facilitates assembly and installation. This relief surface is an arc surface or a slope surface.

[0005] As a further improvement of this utility model, the buffer block is also provided with fasteners, which pass through the buffer block and the cover plate to achieve double fixation of the buffer block and the cover plate.

[0006] As a further improvement of this utility model, the fastener is a rivet, and the buffer block is provided with a first mounting hole and a second mounting hole coaxially through the rivet through direction, and the cover plate is provided with a third mounting hole at the position corresponding to the first mounting hole and the second mounting hole, and the first mounting hole, the second mounting hole and the third mounting hole are coaxially connected.

[0007] As a further improvement of this utility model, the rivet is a plastic rivet, and the buffer block is fixed to the cover plate by hot-melt riveting with the plastic rivet.

[0008] As a further improvement of this utility model, the inner wall of the second mounting hole is provided with a number of strip-shaped protrusions evenly arranged in the circumference, and the number of strip-shaped protrusions are interference-fitted with the plastic rivets.

[0009] As a further improvement of this utility model, the side of the first mounting hole used for mounting plastic rivets is provided with a guide surface.

[0010] As a further improvement of this utility model, the head of the plastic rivet has an inclined surface that is adapted to the guide surface at one end.

[0011] The beneficial effects of this utility model are: the above-mentioned buffer block installation structure can improve the stability of the connection between the buffer block and the cover plate, and also facilitate the installation of the buffer block. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0013] Figure 2 This is a cross-sectional view of the buffer block installation according to an embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the buffer block in an embodiment of the present invention.

[0015] Reference numerals: 1. Mounting base; 2. Cover plate; 3. Buffer block; 4. Locking hole; 5. L-shaped connecting edge; 6. L-shaped slot; 7. Clearance surface; 8. First mounting hole; 9. Second mounting hole; 10. Third mounting hole; 11. Plastic rivet; 12. Strip-shaped protruding edge; 13. Guide surface. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0017] Reference Figure 1-3As shown, a locking port 4 and buffer block 3 mounting structure for a car seat back latch includes a mounting base 1, a cover plate 2 on the mounting base 1, and a buffer block 3 on the cover plate 2. Both the mounting base 1 and the cover plate 2 have locking ports 4 for the latch to extend into and engage. The cover plate 2 has an L-shaped connecting edge 5 formed on the side facing the latch and corresponding to the locking port 4. The buffer block 3 has an L-shaped groove 6 for assembling with the L-shaped connecting edge 5. After the L-shaped groove 6 and the L-shaped connecting edge 5 are assembled, they are fixed to the cover plate 2. The L-shaped groove 6 has a relief surface 7 inside corresponding to the inner bending position of the L-shaped connecting edge 5, which is an arc surface or a slope surface. The cover plate 2 is mounted on the mounting base 1 by pins or rivets. The locking slot 4 is used for the latch to extend and engage. During assembly, the L-shaped groove 6 on the buffer block 3 deforms to allow the L-shaped connecting edge 5 to extend and be installed. The clearance surface 7 inside the L-shaped groove 6 reduces interference between the inner bend of the L-shaped connecting edge 5 and the inner wall of the groove, reducing assembly resistance and improving assembly efficiency. Since the bend is prone to angular errors during the forming process, the clearance surface 7 can prevent damage to the buffer block 3 or the cover plate 2 during assembly. After assembly, the buffer block 3 is tightly held on the cover plate 2. The L-shaped structure increases the contact area between the buffer block 3 and the cover plate 2, improving the connection stability between the buffer block 3 and the cover plate 2 and reducing the displacement of the buffer block 3 under the repeated abutment of the latch.

[0018] The buffer block 3 is also equipped with fasteners, which pass through the buffer block 3 and the cover plate 2 to achieve double fixation of the buffer block 3 and the cover plate 2. The fasteners are connected to the buffer block 3 and the cover plate 2 in a detachable or non-detachable manner, and can be bolts, rivets or other parts. This double fixation method can further improve the connection reliability of the buffer block 3 and the cover plate 2, and reduce the loosening of the buffer block 3 due to repeated impacts of the latch during long-term use. At the same time, the double fixation structure can distribute the force on the L-shaped connecting edge 5, reduce the deformation of the L-shaped connecting edge 5 due to long-term force, and extend the service life of the cover plate 2 and the buffer block 3.

[0019] The fasteners are rivets. A first mounting hole 8 and a second mounting hole 9 are coaxially connected on the buffer block 3 along the rivet insertion direction. A third mounting hole 10 is provided on the cover plate 2 at the corresponding positions of the first mounting holes 8 and 9. The first mounting holes 8, 2, 9, and 3 are coaxially connected. During assembly, the rivets are passed sequentially through the first mounting hole 8, the third mounting hole 10, and the second mounting hole 9. After riveting, the buffer block 3 is reliably fixed to the cover plate 2.

[0020] The rivets are plastic rivets 11, and the buffer block 3 is fixed to the cover plate 2 by hot-melt riveting with plastic rivets 11. The plastic rivets 11 are easy to operate by hot-melt riveting, and are not easy to loosen after connection, and have good stability. After riveting, the buffer block 3 is clamped to the end face of the cover plate 2 from both sides to prevent loosening.

[0021] The inner wall of the second mounting hole 9 is provided with a plurality of strip-shaped protrusions 12 evenly arranged around its circumference. The strip-shaped protrusions are interference-fitted with the plastic rivets. The strip-shaped protrusions 12 are integrally formed with the inner wall of the second mounting hole 9, and the strip-shaped protrusions 12 extend along the axial direction of the second mounting hole 9. The interference fit between the strip-shaped protrusions and the plastic rivets prevents the plastic rivets from slipping out of the mounting hole before riveting.

[0022] The first mounting hole 8 has a guide surface 13 on one side for mounting the plastic rivet 11. The head of the plastic rivet 11 has a bevel that matches the guide surface 13 at one end. The guide surface 13 facilitates the quick alignment of the plastic rivet 11 with the first mounting hole 8 for installation. The bevel on the head of the plastic rivet 11 and the guide surface 13 on the first mounting hole 8 fit together to increase the contact area and further improve the reliability of the installation.

[0023] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A buffer block mounting structure for the locking bolt of a car seat backrest, characterized in that, The device includes a mounting base, a cover plate on the mounting base, and a buffer block on the cover plate. Both the mounting base and the cover plate have locking openings for the latch to extend into and engage. The cover plate has an L-shaped connecting edge formed on the side facing the latch and corresponding to the locking opening. The buffer block has an L-shaped slot for assembling with the L-shaped connecting edge. After the L-shaped slot and the L-shaped connecting edge are assembled, they are fixed to the cover plate. The L-shaped slot has a clearance surface inside corresponding to the inner bend of the L-shaped connecting edge, which is an arc surface or a slope surface to facilitate assembly and installation.

2. The buffer block mounting structure for the locking bolt of the car seat backrest according to claim 1, characterized in that, The buffer block is also equipped with fasteners, which pass through the buffer block and the cover plate to achieve double fixation of the buffer block and the cover plate.

3. The buffer block installation structure for the locking bolt of the car seat backrest according to claim 2, characterized in that, The fastener is a rivet. The buffer block has a first mounting hole and a second mounting hole coaxially through it along the rivet's insertion direction. The cover plate has a third mounting hole at the position corresponding to the first mounting hole and the second mounting hole. The first mounting hole, the second mounting hole, and the third mounting hole are coaxially connected.

4. The buffer block mounting structure for the locking bolt of the car seat backrest according to claim 3, characterized in that, The rivets are plastic rivets, and the buffer block is fixed to the cover plate by heat-fusion riveting with plastic rivets.

5. The buffer block mounting structure for the locking bolt of the car seat backrest according to claim 4, characterized in that, The inner wall of the second mounting hole is provided with several strip-shaped protrusions evenly arranged around its circumference, and these strip-shaped protrusions are interference-fitted with the plastic rivets.

6. The buffer block mounting structure for the locking bolt of the car seat backrest according to claim 4, characterized in that, The first mounting hole has a guide surface on the side for mounting the plastic rivet.

7. The buffer block mounting structure for the locking bolt of the car seat backrest according to claim 6, characterized in that, The head of the plastic rivet has an inclined surface at one end corresponding to the guide surface, which is adapted to the guide surface.

Images