Automobile seat rear table board and buckle structure thereof

Abstract

The utility model provides an automobile seat back table plate and a buckle structure thereof, a back plate assembly and a back table plate assembly have a folded state and an unfolded state, the back table plate assembly comprises a fixed support, a connecting rod mechanism and a back table plate, and the back table plate comprises an upper cover plate, a middle reinforcing support and a lower cover plate. First connecting grooves are formed in the two sides of the end face of the upper cover plate, the middle reinforcing support comprises a bearing plate frame, a transverse supporting rod and a longitudinal supporting rod, second connecting grooves are formed in the middle of the bearing plate frame, supporting shafts are arranged in the second connecting grooves, and the first connecting grooves are embedded between the second connecting grooves. The whole rear table plate is high in structural design bearing capacity, high in stability and stable in folding during storage, structural abnormal sound is effectively avoided, the overall rear table plate can be folded stably, and the rear table plate is convenient to use, simple in structure, convenient to use, high in practicability and suitable for popularization and application. The overall rear table plate is high in structural design bearing capacity and high in stability and can be folded stably during storage, and the service life of the rear table plate is prolonged. And the comfortable experience of sitting and using is improved.

Description

Technical Field

[0001] This application relates to the technical field of automobile seats, specifically to an automobile seat rear table and its snap-fit ​​structure. Background Technology

[0002] With the increasing popularity of automobiles, the convenient utilization of car interior space and the design of passenger comfort have received widespread attention. In particular, foldable car seat rear tables allow people to place items or rest while riding in a car. However, the existing car rear tables and their connecting rods are connected by a single-sided pivot joint. For example, the car seat with announcement number CN201721362U has a small table hinged to the back of its backrest. However, its load-bearing stability is low and it is not suitable for heavy use such as resting. With prolonged use under heavy loads, the pivot joint is prone to deformation and loosening, resulting in low load-bearing stability. Furthermore, when the rear table is folded up, it often causes unstable shaking during the car's movement, which can lead to structural loosening and abnormal noises. This negatively impacts the passenger experience and reduces comfort. Summary of the Invention

[0003] In view of the above-mentioned technical problems, the purpose of this application is to overcome the above-mentioned technical defects and provide a car seat rear table and its buckle structure. The middle reinforcing bracket enables the rear table to have a higher load-bearing capacity, the structural design has high stability, and it is not easy to produce structural loosening and abnormal noise when stored and folded.

[0004] Based on the above technical objectives, this application achieves its objectives through the following technical solutions:

[0005] A car seat rear table structure includes a backrest assembly and a rear table assembly, wherein the backrest assembly and the rear table assembly have a folded state and an unfolded state, and the rear table assembly includes:

[0006] A fixed bracket is fixedly connected to the inside of the rear panel assembly;

[0007] A linkage mechanism, including an upper linkage arm and a lower linkage arm, one end of which is rotatably connected to the fixed bracket;

[0008] The rear table includes an upper cover, a middle reinforcing bracket, and a lower cover. The upper cover has a first connecting groove on both sides of its end face. The other ends of the upper and lower linkage arms are rotatably connected between the first connecting grooves. The middle reinforcing bracket includes two support plates. The support plates are fixedly connected to the inner end face of the upper cover. The support plates have a second connecting groove in the middle. A support shaft is provided in the second connecting groove. The first connecting groove is embedded between the second connecting grooves. The two ends of the support shaft are positioned and connected to the second connecting grooves. The upper and lower linkage arms are rotatably pivotally connected to the middle of the support shaft.

[0009] Optionally, the support plate frame has a first abutting convex surface protruding from one end away from the second connecting groove, and the first abutting convex surface abuts against the inner end face of the upper cover plate.

[0010] Optionally, a ribbed side plate is provided on the side of the first abutting convex surface.

[0011] Optionally, at least one transverse support rod is connected between the two support plate frames, and at least one longitudinal support rod is connected to the transverse support rod. At least one end of the longitudinal support rod is configured as a second abutting convex surface, and the second abutting convex surface abuts against the inner end face of the upper cover plate.

[0012] Optionally, the end of the longitudinal support rod away from the linkage mechanism is configured as a second abutting convex surface.

[0013] Optionally, two bushings are symmetrically arranged on the support shaft, and the two bushings are abutted and connected between the second connecting groove. One end of each bushing has a raised step, and the upper and lower linkage arms are abutted and connected between the two raised steps, so that the upper and lower linkage arms are pivotally connected to the middle of the support shaft.

[0014] Optionally, the fixed bracket is provided with a pop-out mechanism. When in the folded state, the pop-out mechanism elastically abuts against the upper linkage arm and / or the lower linkage arm to achieve a certain elastic buffer gap between the rear table and the rear back panel assembly.

[0015] Optionally, the fixed bracket is provided with clearance slots, and a metal compression spring is connected between the clearance slots. The two ends of the metal compression spring are provided with coiling and energy storage parts, and the two coiling and energy storage parts are connected by an elastic abutment part. When in the folded state, the upper linkage arm and / or the lower linkage arm abut against the elastic abutment part.

[0016] Optionally, a snap-fit ​​structure is installed on the above-described car seat backrest, characterized in that it includes: a snap-fit ​​module, detachably disposed on the backrest assembly, including a cover and a housing that are interlocked with each other; the cover is slidably provided with a pressing member along its end face; the pressing member is connected to the inner side of the housing through a first elastic member; the housing is slidably provided with a latching member along its side; the latching member is connected to the inner side of the housing through a second elastic member; the pressing member and the latching member are tractably connected to each other along one end; when the pressing member is pressed, the latching member slides and retracts toward the inner side of the housing.

[0017] The card slot module is located on the side of the rear table. When the rear table is in a folded state, the card tongue engages with the card slot module.

[0018] Optionally, the pressing member has limiting grooves on both sides, the inner side of the housing has limiting protrusions, the limiting protrusions are slidably connected between the limiting grooves, the pressing member has a pushing channel in the middle, the latch is disposed between the pushing channels, the pushing channels have inclined pushing edges on both sides, the latch has sliders on both sides of its end, and the sliders can slide against the inclined pushing edges.

[0019] Through the above technical solutions, this application can achieve the following beneficial effects:

[0020] (1) The two support plates on both sides of the rear table of the car seat have a good load-bearing support function. The linkage arm and the rear table are pivotally connected on both sides, which makes the load-bearing stability high. Specifically, the linkage mechanism (upper and lower linkage arm) and the support plate are pivotally connected through the support shaft on the second connecting groove. The two ends of the support shaft are fixedly connected to the side wall of the second connecting groove. When the rear table is in the unfolded state, the two ends of the support shaft provide a good load-bearing support function for the support plate. The linkage mechanism is pivotally connected to the middle position of the support shaft, thereby realizing the tensile support function for the support plate.

[0021] (2) The support shaft also includes two bushings symmetrically arranged between the second connecting grooves. The bushings provide strong protection for the support shaft and enable the upper and lower linkage arms to be pivotally connected to the middle position of the support shaft, thereby improving the stability of the force connection.

[0022] (3) When the rear table is folded, the pop-out mechanism creates a certain degree of elastic abutment and buffer between the back of the car seat and the rear table, which avoids the structural noise caused by violent shaking during the car's operation.

[0023] (4) The first and second abutting convex surfaces abut against the inner end face of the upper cover plate, which together provide a strong support and buffer for the tabletop of the rear table, and improve the overall load-bearing stability of the rear table.

[0024] (5) The buckle module adopts a modular and detachable design, which can be disassembled and assembled from the back of the car seat in one piece. When the rear table is folded, the latch and the slot module are engaged to achieve the folding and positioning of the rear table. When the rear table is opened, the latch is slid and pushed against the latch by pressing the press part to achieve retraction. The rear table is displaced by a certain distance by the elastic pushing action of the pop-out mechanism, so that the slot module is disengaged from the latch position, thereby enabling the rear table to be stretched and unfolded manually.

[0025] (6) The pressing part is slidably limited to the inner side of the housing along both sides, and is slidably pushed and driven to the latch part along the middle, so that the sliding structure connection has high stability. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the front of the rear table of a car seat according to a specific embodiment of this application;

[0027] Figure 2 This is a three-dimensional structural diagram of the table assembly after a specific embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the structural connection of the table assembly after a specific embodiment of this application;

[0029] Figure 4 This is a structural disassembly diagram of the table assembly after a specific embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the structural connection of the support plate frame according to a specific embodiment of this application;

[0031] Figure 6 This is a partial exploded view of the table assembly after a specific embodiment of this application;

[0032] Figure 7 This is a three-dimensional structural diagram of the back of the rear table of a car seat according to a specific embodiment of this application;

[0033] Figure 8 This is a three-dimensional structural diagram of the snap-fit ​​module according to a specific embodiment of this application;

[0034] Figure 9 This is a structural disassembly diagram of the snap-fit ​​module according to a specific embodiment of this application;

[0035] Figure 10 This is a schematic diagram of the pressing component and the latching tongue component in a specific embodiment of this utility model.

[0036] Reference numerals: 1. Fixed bracket; 2. Linkage mechanism; 3. Rear table; 21. Upper linkage arm; 22. Lower linkage arm; 30. First connecting groove; 31. Upper cover plate; 32. Intermediate reinforcing bracket; 33. Lower cover plate; 320. Second connecting groove; 321. Support plate frame; 3210. Rib side plate; 3211. First abutting protrusion; 322. Support shaft; 323. Transverse support rod; 324. Longitudinal support rod; 3241. First connecting protrusion. 325. Abutting convex surface; 10. Bushing; 11. Pop-out mechanism; 12. Clearance groove; 4. Metal compression spring; 5. Buckle module; 6. Slot module; 7. Cover; 8. Housing; 9. Pressing element; 10. Tongue element; 11. First elastic element; 12. Second elastic element; 13. Limiting protrusion; 14. Limiting slide groove; 15. Pushing channel; 16. Angled push edge; 17. Slider; 18. Back plate; 19. Fixing frame. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0038] First, combine with the appendix Figure 1-6 As shown, this utility model provides a car seat rear table 3, including a backrest panel 6 assembly and a rear table 3 assembly. The backrest panel 6 assembly is installed on the back of the car seat. The backrest panel 6 assembly and the rear table 3 assembly have a folded state and an unfolded state. The rear table 3 assembly includes a fixed bracket 1, a linkage mechanism 2, and the rear table 3. The fixed bracket 1 is fixedly connected to the inner side of the backrest panel 6 assembly. The backrest panel 6 assembly has corresponding linkage channels. The linkage mechanism 2 is movably connected between the linkage channels. The linkage mechanism 2 includes an upper linkage arm 21 and a lower linkage arm 22. One end of the upper linkage arm 21 and the lower linkage arm 22 are rotatably connected to the fixed bracket 1, and the other end is rotatably connected to the rear table 3. The rear table 3 includes an upper cover plate. 31. A middle reinforcing bracket 32 ​​and a lower cover plate 33, wherein the middle reinforcing bracket 32 ​​is made of metal. The upper cover plate 31 and the lower cover plate 33 are connected to each other through multiple snap-fit ​​and slot structures along the inner side. Multiple reinforcing ribs are arranged in a crisscross pattern on the inner sides of the upper cover plate 31 and the lower cover plate 33. The middle reinforcing bracket 32 ​​is located between the inner sides of the upper cover plate 31 and the lower cover plate 33. The middle reinforcing bracket 32 ​​is fixedly connected to the inner end face of the upper cover plate 31. The end face of the upper cover plate 31 is provided with first connecting grooves 30 on both sides. The first connecting grooves 30 are snap-fitted to the upper cover plate 31. The other ends of the upper linkage arm 21 and the lower linkage arm 22 are rotatably positioned and connected between the first connecting grooves 30.

[0039] Furthermore, in order to improve the load-bearing stability of the intermediate reinforcing bracket 32 ​​on the rear table 3, the intermediate reinforcing bracket 32 ​​includes two support plate frames 321, at least one transverse support rod 323 and at least one longitudinal support rod 324. The two support plate frames 321 are located on both sides inside the rear table 3. The transverse support rod 323 is fixedly connected between the two support plate frames 321. In this embodiment, it is preferable to use two transverse support rods 323 arranged at intervals. The longitudinal support rod 324 is fixedly connected to the transverse support rod 323. In this embodiment, it is preferable to use two longitudinal support rods 324 arranged at intervals. The fixed connection between the support plate frame 321, the transverse support rod 323 and the longitudinal support rod 324 can be welding, riveting, etc. The support plate frame 321, the transverse support rod 323 and the longitudinal support rod 324 are respectively fixedly connected to the inner end face of the upper cover plate 31 by screw and screw hole structure.

[0040] Specifically, the support plate frame 321 has a second connecting groove 320 in the middle, and a support shaft 322 is provided in the second connecting groove 320. The two sides of the support plate frame 321 are fixedly connected to the inner side of the upper cover plate 31. The upper cover plate 31 is embedded in the second connecting groove 320 through the first connecting groove 30. The side wall of the first connecting groove 30 has a connecting opening corresponding to the position of the support shaft. The two ends of the support shaft 322 are positioned and connected to the opposite side walls of the second connecting groove 320. In this embodiment, the opposite side walls of the second connecting groove 320 have shaft holes. The two ends of the support shaft 322 pass through the shaft holes and are fixedly connected to the side walls of the second connecting groove 320 with an interference fit. The upper linkage arm 21 and the lower linkage arm 22 are rotatably pivotally connected to the middle of the support shaft 322. The support shaft 322 is symmetrically provided with two bushings 325 along the axial direction. The bushings 325 are sleeved on the support shaft 322, and the two bushings 325 are symmetrically abutted and connected to the second connecting groove 320. The bushing 325, located near the side wall of the second connecting groove 320, extends radially to form a stepped portion. The upper linkage arm 21 and the lower linkage arm 22 are rotatably pivotally connected to the bushing 325 and abut against the opposite sides of the stepped portion, thus achieving a pivotal positioning connection to the middle of the support shaft 322. The end of the support plate frame 321 away from the second connecting groove 320 has a first abutting convex surface 3211. 211 abuts against the inner side of the upper cover plate 31. The first abutting convex surface 3211 is integrally forged with the support plate frame 321. The bending angle A between the first abutting convex surface 3211 and the end face of the support plate frame 321 is preferably 0°<A≤45°. A ribbed side plate 3210 is extended from the side of the first abutting convex surface 3211. In this embodiment, the ribbed side plate extends along the direction of the upper cover plate 31, which effectively improves the load-bearing and abutting capacity of the first abutting convex surface 3211.

[0041] Specifically, two transverse support rods 323 are provided. One transverse support rod 323 is fixedly connected between the two opposite sides of the opening of the second connecting groove 320, and the other transverse support rod 323 is fixedly connected between the rib side plates 3210 of the first abutting convex surface 3211, thereby improving the load-bearing stability of the intermediate reinforcing bracket 32. Two longitudinal support rods 324 are provided, and the two longitudinal support rods 324 are symmetrically spaced apart. At least one end of the longitudinal support rod 324 is provided as the second abutting convex surface 3241, and the second abutting convex surface 3241 is flush with the inner side of the upper cover plate 31. The surfaces abut against each other, and the second abutting convex surface 3241 is integrally forged with the longitudinal support rod 324. The bending angle A between the second abutting convex surface 3241 and the end face of the longitudinal support rod 324 is preferably 0°<A≤45°. In this embodiment, preferably, the end of the longitudinal support rod 324 away from the linkage mechanism 2 is set as the second abutting convex surface 3241, and the other end is fixedly connected to the transverse support rod 323, thereby improving the load-bearing abutting capacity of the longitudinal support rod 324. The overall structure of the support plate frame 321 improves the load-bearing stability of the rear table 3.

[0042] Furthermore, to address the structural noise issue caused by structural loosening and to ensure the safe and convenient pop-out of the rear table 3, in this embodiment, the fixed bracket 1 is equipped with a pop-out mechanism 10. When folded, the pop-out mechanism 10 elastically abuts against the upper linkage arm 21 and / or the lower linkage arm 22. The fixed bracket 1 is fixedly connected to the inner side of the backrest assembly or the backrest of the car seat via bolts and screw holes. Specifically, the fixed bracket 1 is equipped with clearance slots 11, and metal compression springs 12 are positioned and connected between the clearance slots 11. The metal compression spring 12 has coiled energy storage parts at both ends, and the two coiled energy storage parts are connected by an elastic abutment part. The ends of the two coiled energy storage parts that are far away from the elastic abutment part are fixedly connected to the opposite sides of the clearance slot 11 by screws and screw holes. When in the folded state, the upper linkage arm 21 and / or the lower linkage arm 22 abut against the elastic abutment part to form a certain elastic buffer gap between the rear table 3 and the rear back panel 6 assembly, so as to avoid structural collision and loosening during the car's operation, which would cause abnormal noise and affect the riding comfort experience.

[0043] Furthermore, combined with the appendix Figure 7-10As shown, in order to improve the stable positioning of the rear back panel 6 assembly and the rear table panel 3 assembly in the folded state, this application also provides a buckle structure, including a buckle module and a buckle slot module. In this embodiment, the rear back panel 6 assembly includes a rear back panel 6 and a fixing frame 7 disposed on the inner side of the rear back panel 6. The fixing frame 7 is made of metal. The rear back panel 6 is installed on the back of the car seat through the fixing frame 7. The rear back panel 6 has a storage groove that matches the shape of the rear table panel 3 and an installation slot for the fixing bracket 1. The fixing bracket 1 is fixedly connected to the fixing frame 7 by passing through the installation slot through the bolt and screw hole structure.

[0044] Specifically, a buckle module 4 is detachably provided on the inner side of the back panel 6. A pressing port and a latching port are provided on the back panel 6 corresponding to the buckle module 4. A slot module 5 is provided on the side of the rear table panel 3 corresponding to the buckle module 4. The slot module 5 is embedded between the upper cover plate 31 and the lower cover plate 33. When the rear table panel 3 and the back panel 6 are in a folded state, the buckle module 4 and the slot module 5 are engaged with each other to achieve positioning connection.

[0045] Specifically, to facilitate the assembly and disassembly of the snap-fit ​​module 4, the snap-fit ​​module 4 includes a cover 41 and a housing 42 that interlock with each other. Connecting panels extend from opposite sides of the housing 42. The snap-fit ​​module 4 is fixedly connected to the inner side of the back table 3 via the connecting panels. The cover 41 has pressing channels along its end face, and pressing members 43 are slidably provided between these channels. The pressing members 43 are abutted against the inner end face of the housing 42 via a first elastic member 45. The housing 42 has latch channels along one side, and latch members 44 are slidably provided between these channels. The latch members 44 are abutted against the inner wall of the housing 42 via a second elastic member 46. In this embodiment, preferably, the first elastic member 45 and the second elastic member 46 are springs. The pressing member 43 and the latching member 44 are slidably connected to each other along one end on the inner side of the housing 42. Specifically, the pressing member 43 has a limiting groove 431 on both sides, and the inner side of the housing 42 is provided with a corresponding limiting protrusion 421. The limiting protrusion 421 is slidably connected between the limiting grooves 431. The pressing member 43 has a pushing channel 432 in the middle, and the latching member 44 is slidably disposed between the pushing channel 432. The pushing channel 432 has inclined pushing edges 433 on both sides. The latching member 44 has corresponding sliders 441 protruding on both sides of its end. The latching member 44 can slide against the inclined pushing edge 433 through the sliders 441. When the pressing member 43 is pressed, the latching member 44 slides and retracts towards the inner side of the housing 42, thereby releasing the latching connection between the rear table 3 and the rear back panel 6.

[0046] This specific embodiment is a preferred embodiment of the present utility model, and is not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape and principle of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A car seat rear table, comprising a backrest assembly and a rear table assembly, wherein the backrest assembly and the rear table assembly have a folded state and an unfolded state, characterized in that, The rear table assembly includes: A mounting bracket is attached to the rear panel assembly; A linkage mechanism, including an upper linkage arm and a lower linkage arm, one end of which is rotatably connected to the fixed bracket; The rear table includes an upper cover, a middle reinforcing bracket, and a lower cover. The upper cover has a first connecting groove on both sides of its end face. The middle reinforcing bracket includes two support plates. The support plates are fixedly connected to the inner end face of the upper cover. The support plates have a second connecting groove in the middle. A support shaft is provided in the second connecting groove. The first connecting groove is embedded between the second connecting grooves, the two ends of the support shaft are positioned and connected to the second connecting grooves, and the other ends of the upper and lower linkage arms are rotatably pivotally connected to the middle of the support shaft.

2. The car seat rear table according to claim 1, characterized in that, The support plate frame has a first abutting convex surface at one end away from the second connecting groove, and the first abutting convex surface abuts against the inner side of the upper cover plate.

3. A car seat rear table according to claim 2, characterized in that, The first abutting convex surface has a ribbed side plate extending from its side.

4. The car seat rear table according to claim 1, characterized in that, At least one transverse support rod is connected between the two support plate frames, and at least one longitudinal support rod is connected to the transverse support rod. At least one end of the longitudinal support rod is configured as a second abutting convex surface, which abuts against the inner end face of the upper cover plate.

5. A car seat rear table according to claim 4, characterized in that, The end of the longitudinal support rod away from the linkage mechanism is configured as the second abutment convex surface.

6. A car seat rear table according to claim 1, characterized in that, Two bushings are symmetrically arranged on the support shaft. The two bushings are abutted and connected between the second connecting groove. One end of each bushing has a raised step. The upper linkage arm and the lower linkage arm are abutted and connected between the two raised steps.

7. A car seat rear table according to claim 1, characterized in that, The fixed bracket is provided with a pop-out mechanism. When in the folded state, the pop-out mechanism elastically abuts against the upper linkage arm and / or the lower linkage arm.

8. A car seat rear table according to claim 1 or 7, characterized in that, The fixed bracket is provided with clearance slots, and metal compression springs are connected between the clearance slots. The two ends of the metal compression springs are provided with coiling and energy storage parts. The two coiling and energy storage parts are connected by an elastic abutment part. When in the folded state, the upper linkage arm and / or the lower linkage arm abut against the elastic abutment part.

9. A snap-fit ​​structure, installed on a car seat rear table as described in any one of claims 1-8, characterized in that, include: The snap-fit ​​module is detachably mounted on the rear panel assembly and includes a cover and a housing that are interlocked. The cover has a slidable pressing member along its end face. The pressing member is connected to the inner side of the housing through a first elastic member. The housing has a slidable latch along its side. The latch is connected to the inner side of the housing through a second elastic member. The pressing member and the latch are connected to each other along one end in a driveable manner. When the pressing member is pressed, the latch slides and retracts towards the inner side of the housing. The card slot module is located on the side of the rear table. When the rear table is in a folded state, the card tongue engages with the card slot module.

10. A snap-fit ​​structure according to claim 9, characterized in that, The pressing member has limiting grooves on both sides, and the inner side of the housing has limiting protrusions that are slidably connected between the limiting grooves. The pressing member has a pushing channel in the middle, and the latch is located between the pushing channels. The pushing channels have inclined pushing edges on both sides, and the latch has sliders on both sides of its end that can slide against the inclined pushing edges.

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