Assembled seat frame assembly

Abstract

The present invention relates to the technical field of seat frames, and proposes an assembled seat frame assembly, which adopts an assembled structure as a whole, so that the same structure is assembled by different materials, and has the characteristics of structural strength, safety performance and light weight. At the same time, the coupling between the components is good, and the assembly operation is relatively labor-saving, and the structural reliability is good. It includes a seat frame body, and also includes a bottom slide and an auxiliary back frame. The bottom slide includes a left slide rail and a right slide rail. The left slide rail and the right slide rail are respectively slidably connected with a left slide sleeve and a right slide sleeve. The seat frame body includes a left mounting seat and a right mounting seat. The left mounting seat and the right mounting seat are respectively fixedly connected to the left slide sleeve and the right slide sleeve. The left mounting seat is rotatably connected to a left seat frame, and the right mounting seat is rotatably connected to a right seat frame. The left seat frame is connected to a left auxiliary plate, and the right seat frame is connected to a right auxiliary plate. A synchronization rod is connected between the left auxiliary plate and the right auxiliary plate, and the left auxiliary plate is connected to a left seat back frame.

Description

Technical Field

[0001] The invention relates to the technical field of seat frames, and in particular to an assembled seat frame assembly. Background Art

[0002] As we all know, car seats are auxiliary devices that provide drivers and passengers with easy-to-operate, comfortable and safe driving and riding positions. Usually, car seats are composed of a frame and an external skin, where the frame is mostly assembled by welding of bent profiles. During the welding and forming process of these frames, a jig is usually required for auxiliary positioning to ensure the standardization of the welding structure. Therefore, in order to improve the convenience of the frame welding operation, an assembled seat frame assembly is proposed.

[0003] After searching, a Chinese patent with publication number CN212709089U published on March 16, 2021 discloses a lightweight automobile seat frame structure, which is roughly described as including a seat frame body, a limit piece is provided at the upper end of the seat frame body near the left side, and two wedge-shaped blocks are provided at the upper end of the seat frame body near the right side. The two wedge-shaped blocks are respectively arranged near the front and rear end side walls of the seat frame body, and a buffer mechanism is provided at the upper end of the seat frame body, which is cooperated with the wedge-shaped block integrated with the seat frame body through the setting of the connecting block and the clamping ring, so as to effectively limit and fix the seat cushion to avoid displacement of the seat cushion during use; a number of pressure springs arranged in the groove cooperate with the buffer pad of the polyurethane rubber product to provide buffering protection for the seat frame body under the limiting action of the slide groove and the slider, thereby extending the seat frame body. The service life of the seat is 20 years, and the Chinese patent with publication number CN205395857U published on July 27, 2016 discloses a seat frame with a backrest that can be laid flat in both directions front and back. The technical solution adopted is: it includes a backrest frame, a folding plate and a seat frame, the backrest frame and the seat frame are connected together through the folding plate, and are provided with an adjuster, a linkage rod and a backrest unlocking handle. The adjuster is installed between the backrest frame and the folding plate, one end of the linkage rod connects the backrest frame, the adjuster and the folding plate together, and the other end passes through the backrest frame and the folding plate and is connected to the backrest unlocking handle, and is provided with a rotating shaft, which connects the seat frame and the folding plate together, and folding unlocking mechanisms are respectively provided on both sides of the seat frame, which are fixed to the seat frame and movably connected to the folding plate, so that it can be folded forward and laid flat, and can also be folded backward and laid flat.

[0004] Although the above two existing technical solutions can be applied to provide seats for drivers and passengers in automobiles, most of their independent components adopt an integral structure or a structure welded to each other. However, with the lightweight and humanized design of automobiles, how to further improve the safety performance and lightweight of the seat structure has attracted much attention. The seat structure needs to ensure sufficient rigidity, but at the same time, it must ensure good deformation energy absorption. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides an assembled seat frame assembly, which adopts an assembled structure as a whole, so that the same structure is assembled from different materials, and has the characteristics of structural strength, safety performance and light weight. At the same time, the coupling between the components is good, the assembly operation is more labor-saving, and the structural reliability is good.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an assembled seat frame assembly, including a seat frame body, and also including a bottom slide and an auxiliary back frame, the bottom slide includes a left slide rail and a right slide rail, the left slide rail and the right slide rail are respectively slidably connected with a left slide sleeve and a right slide sleeve, the seat frame body includes a left mounting seat and a right mounting seat, the left mounting seat and the right mounting seat are respectively fixedly connected to the left slide sleeve and the right slide sleeve, the left mounting seat is rotatably connected to a left seat frame, the right mounting seat is rotatably connected to a right seat frame, the left seat frame is rotatably connected to a left auxiliary plate, and the right seat frame is rotatably connected to a left auxiliary plate. A right auxiliary plate is connected, a synchronization rod is fixedly connected between the left auxiliary plate and the right auxiliary plate, a left seat back frame is fixedly connected to the left auxiliary plate, and a right seat back frame is fixedly connected to the right auxiliary plate. The auxiliary back frame includes a left alloy tube and a right alloy tube. The top ends of the left alloy tube and the right alloy tube are both provided with connecting elbows, the two connecting elbows are respectively connected to the left alloy tube and the right alloy tube through a first anti-loosening screw, a transverse tube is connected between the two connecting elbows through a second anti-loosening screw, and the bottom ends of the left alloy tube and the right alloy tube are both provided with connecting structures, and the two connecting structures respectively cooperate with the left seat back frame and the right seat back frame.

[0009] On the basis of the above-mentioned scheme, the two connecting structures include a gradient frame, and the two gradient frames are respectively fixedly connected to the left alloy tube and the right alloy tube, and the bottom ends of the two gradient frames are respectively provided with a supporting surface, and the two supporting surfaces are respectively matched with the top of the left seat back frame and the top of the right seat back frame, and the two gradient frames are fixedly connected with a vertical plate, and the bottom ends of the two vertical plates are fixedly connected with a plug-in bent plate, and the left seat back frame and the right seat back frame are respectively provided with plug-in holes, and the two plug-in holes are respectively matched with the two plug-in bent plates, and the two vertical plates are respectively provided with stepped connecting holes, and the two stepped connecting holes are respectively provided with countersunk bolts, and the two countersunk bolts are threaded with anti-loosening nuts.

[0010] Preferably, based on the above scheme, the anti-loosening nut includes a base nut and multiple extension frames, the base nut is threadedly connected to the countersunk bolt, the multiple extension frames are fixedly connected to the base nut, an anti-loosening plate is fixedly connected between each two adjacent extension frames among the multiple extension frames, and multiple anti-loosening surfaces are provided on the countersunk bolt, and the anti-loosening surfaces match the anti-loosening plates.

[0011] Further on the basis of the above scheme, the bottom ends of the two connecting elbows are provided with bottom insertion tubes, and the ends of the two connecting elbows close to each other are fixedly connected with top insertion tubes, the two bottom insertion tubes are respectively inserted into the left alloy tube and the right alloy tube, and the two top insertion tubes are respectively inserted from the left and right ends of the horizontal tube.

[0012] Further on the basis of the above scheme, a plurality of side grooves are arranged on the nut of the first anti-loosening screw and the nut of the second anti-loosening screw, anti-loosening strips are arranged in the plurality of side grooves, and gaps are arranged between the anti-loosening strips and the nuts.

[0013] Further on the basis of the above scheme, the left seat frame, the right seat frame, the left seat back frame and the right seat back frame are all provided with a plurality of weight-reducing openings and a plurality of auxiliary mounting holes.

[0014] As a further improvement of the above scheme, two headrest mounting tubes are fixedly connected to the transverse tube, and the two headrest mounting tubes are symmetrically arranged.

[0015] As a further improvement of the above solution, a synchronization frame is fixedly connected between the left sliding sleeve and the right sliding sleeve.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides an assembled seat frame assembly, which has the following beneficial effects:

[0018] 1. In the present invention, through the design of the auxiliary back frame and the coordination between the auxiliary back frame and the seat frame body, the assembled seat frame assembly as a whole adopts an assembled structure, so that the same structure is assembled from different materials, and has the characteristics of structural strength, safety performance and light weight.

[0019] 2. In the present invention, the design of the connecting structure facilitates the connection between the left alloy tube and the left seat back frame, as well as between the right alloy tube and the right seat back frame. The coupling between the left alloy tube and the left seat back frame, as well as between the left alloy tube and the left seat back frame is good, and the assembly operation is labor-saving and the structural reliability is good.

[0020] 3. In the present invention, the left alloy tube, the right alloy tube and the cross tube are assembled and installed by the cooperation of the first anti-loosening screw, the connecting elbow and the second anti-loosening screw, so that the coupling between the three is better, the assembly operation is more labor-saving, and the structural reliability is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0023] Figure 3 For the present invention Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0024] Figure 4 For the present invention Figure 1 A schematic diagram of the local enlarged structure at C in the middle;

[0025] Figure 5 It is a schematic diagram of an exploded three-dimensional structure of the countersunk bolt, the basic nut and the extension frame of the present invention;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the connection elbow, the bottom insertion tube and the top insertion tube of the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the anti-loosening strip of the present invention;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the present invention as a whole when viewed from above;

[0029] Fig. 9 For the present invention Figure 8 Schematic diagram of the local enlarged structure at point D in the middle.

[0030] In the figure: 1. left slide rail; 2. right slide rail; 3. left slide sleeve; 4. right slide sleeve; 5. left mounting seat; 6. right mounting seat; 7. left seat frame; 8. right seat frame; 9. left auxiliary plate; 10. right auxiliary plate; 11. synchronization rod; 12. left seat back frame; 13. right seat back frame; 14. left alloy tube; 15. right alloy tube; 16. connecting elbow; 17. first anti-loosening screw; 18. second anti-loosening screw; 19. horizontal tube; 20. gradient frame; 21. supporting surface; 22. vertical plate; 23. plug-in bent plate; 24. countersunk bolt; 25. basic nut; 26. extension frame; 27. anti-loosening plate; 28. anti-loosening surface; 29. ​​bottom insert tube; 30. top insert tube; 31. anti-loosening strip; 32. weight reduction port; 33. auxiliary mounting hole; 34. headrest mounting tube; 35. synchronization frame. DETAILED DESCRIPTION

[0031] Example

[0032] See also Figure 1-9A prefabricated seat frame assembly includes a seat frame body, a bottom slide and an auxiliary back frame, the bottom slide includes a left slide rail 1 and a right slide rail 2, the left slide rail 1 and the right slide rail 2 are respectively slidably connected with a left slide sleeve 3 and a right slide sleeve 4, a synchronization frame 35 is fixedly connected between the left slide sleeve 3 and the right slide sleeve 4, the connection between the left slide sleeve 3 and the right slide sleeve 4 is realized, and the stability of the relative position between the two is improved, the seat frame body includes a left mounting seat 5 and a right mounting seat 6, the left mounting seat 5 and the right mounting seat 6 are respectively fixedly connected to the left slide sleeve 3 and the right slide sleeve 4, a left seat frame 7 is rotatably connected to the left mounting seat 5, and a right seat frame 8 is rotatably connected to the right mounting seat 6, the left seat frame 7 and the right seat frame 8 , a plurality of weight-reducing openings 32 and a plurality of auxiliary mounting holes 33 are provided on the left seat back frame 12 and the right seat back frame 13, a left auxiliary plate 9 is rotatably connected to the left seat seat frame 7, a right auxiliary plate 10 is rotatably connected to the right seat seat frame 8, a synchronization rod 11 is fixedly connected between the left auxiliary plate 9 and the right auxiliary plate 10, the left seat back frame 12 is fixedly connected to the left auxiliary plate 9, and the right seat back frame 13 is fixedly connected to the right auxiliary plate 10, the auxiliary back frame comprises a left alloy tube 14 and a right alloy tube 15, the top end of the left alloy tube 14 and the top end of the right alloy tube 15 are both provided with a connecting elbow 16, the two connecting elbows 16 are respectively connected to the left alloy tube 14 and the right alloy tube 15 by a first anti-loosening screw 17, and the two connecting elbows A cross tube 19 is connected between the head 16 through a second anti-loosening screw 18, and two headrest mounting tubes 34 are fixedly connected to the cross tube 19, and the two headrest mounting tubes 34 are symmetrically arranged on the left and right sides, which is convenient for the installation of the headrest. A plurality of side grooves are arranged on the nut of the first anti-loosening screw 17 and the nut of the second anti-loosening screw 18, and anti-loosening strips 31 are arranged in the plurality of side grooves, and a gap is arranged between the anti-loosening strips 31 and the nut. Through the cooperation of the first anti-loosening screw 17, the connecting elbow 16 and the second anti-loosening screw 18, the assembly and installation of the left alloy tube 14, the right alloy tube 15 and the cross tube 19 are realized, so that the coupling between the three is better, the assembly operation is more labor-saving, the structural reliability is better, and the two connecting elbows are more convenient. A bottom insertion tube 29 is provided at the bottom end of the head 16, and a top insertion tube 30 is fixedly connected to the ends of the two connecting elbows 16 that are close to each other. The two bottom insertion tubes 29 are respectively inserted into the left alloy tube 14 and the right alloy tube 15, and the two top insertion tubes 30 are respectively inserted from the left and right ends of the cross tube 19. The bottom end of the left alloy tube 14 and the bottom end of the right alloy tube 15 are provided with connecting structures, and the two connecting structures are respectively matched with the left seat back frame 12 and the right seat back frame 13. Through the design of the auxiliary back frame and the cooperation between the auxiliary back frame and the seat frame body, the overall assembled seat frame assembly adopts an assembled structure, so that the same structure is assembled from different materials, and has the characteristics of structural strength, safety performance and lightweight.

[0033] It should be further explained that the two connecting structures include a gradient frame 20, and the two gradient frames 20 are fixedly connected to the left alloy tube 14 and the right alloy tube 15 respectively. The bottom ends of the two gradient frames 20 are provided with a support surface 21, and the two support surfaces 21 match the top of the left seat back frame 12 and the top of the right seat back frame 13 respectively. The two gradient frames 20 are fixedly connected with a vertical plate 22, and the bottom ends of the two vertical plates 22 are fixedly connected with a plug-in bent plate 23. Plug holes are provided on the left seat back frame 12 and the right seat back frame 13, and the two plug-in holes match the two plug-in bent plates 23 respectively. Step connecting holes are provided on the two vertical plates 22, and countersunk bolts 24 are provided in the two step connecting holes. Through the design of the connecting structure, it is easy to realize the connection between the left alloy tube 14 and the left seat back frame 12 and the right alloy tube 15 and the right seat back The connection between the frames 13, the coupling between the left alloy tube 14 and the left seat back frame 12, and the coupling between the left alloy tube 14 and the left seat back frame 12 is good, and the assembly operation is more labor-saving and the structural reliability is good. The two countersunk bolts 24 are threaded with anti-loosening nuts, and the anti-loosening nuts include a basic nut 25 and a plurality of extension frames 26. The basic nut 25 is threadedly connected to the countersunk bolt 24, and the plurality of extension frames 26 are fixedly connected to the basic nut 25. An anti-loosening plate 27 is fixedly connected between each adjacent two extension frames 26 in the plurality of extension frames 26. The countersunk bolt 24 is provided with a plurality of anti-loosening surfaces 28, and the anti-loosening surfaces 28 are matched with the anti-loosening plates 27, so as to realize the compression of the two vertical plates 22 with the left seat back frame 12 and the right seat back frame 13 respectively, and the anti-loosening of the basic nut 25 relative to the countersunk bolt 24.

[0034] In summary, the assembly process of the assembled seat frame assembly is as follows: during assembly, the assembly of the seat frame body and the bottom slide is first completed, then the assembly of the auxiliary back frame is completed, and finally the assembly between the auxiliary back frame and the seat frame body is completed. During the assembly of the auxiliary back frame, the two top insertion tubes 30 are respectively inserted from the left and right ends of the cross tube 19, and then the second anti-loosening screw 18 is used to realize the top tightening connection between the cross tube 19 and the top insertion tube 30, and finally the two bottom insertion tubes 29 are respectively inserted into the left alloy tube 14 and the right alloy tube 15, and the first anti-loosening screw 17 is used to realize the positioning of the two bottom insertion tubes 29 with the left alloy tube 14 and the right alloy tube 15, respectively. After the connection and positioning are completed, the anti-loosening strips 31 on the first anti-loosening screw 17 and the anti-loosening strips 31 on the second anti-loosening screw 18 are respectively unfolded, and the unfolded anti-loosening strips 31 are respectively pressed against the left alloy tube 14 and the right alloy tube 15 The tube 15 and the cross tube 19 are used to prevent the first anti-loosening screw 17 and the second anti-loosening screw 18 from loosening. When the auxiliary back frame is connected to the seat frame body, the two plug-in bent plates 23 are respectively inserted into the plug-in holes on the left seat back frame 12 and the plug-in holes on the right seat back frame 13. Then, the two vertical plates 22 are matched with the left seat plate 7 and the right seat frame 8 to respectively tighten the two vertical plates 22 through the countersunk bolts 24 and the basic nuts 25. Finally, the anti-loosening plate 27 is pressed relative to the anti-loosening surface 28 so that the anti-loosening plate 27 is deformed and leans against the anti-loosening surface 28, thereby achieving the purpose of preventing the basic nut 25 from loosening relative to the countersunk bolts 24. At the same time, the assembly between the various components in the seat frame body and the assembly between the various components in the bottom slide can use a double-matching connection structure similar to the aforementioned insertion and pressing according to actual use needs to ensure the connection reliability of the structure and the structural strength between the various components in the structure.

Claims

1. An assembled seat frame assembly, comprising a seat frame body, It is characterized in that The invention also comprises a bottom slide and an auxiliary back frame, wherein the bottom slide comprises a left slide rail (1) and a right slide rail (2), wherein the left slide rail (1) and the right slide rail (2) are respectively slidably connected with a left slide sleeve (3) and a right slide sleeve (4), wherein the seat frame body comprises a left mounting seat (5) and a right mounting seat (6), wherein the left mounting seat (5) and the right mounting seat (6) are respectively fixedly connected with the left slide sleeve (3) and the right slide sleeve (4), wherein the left mounting seat (5) is rotatably connected with a left seat frame (7), wherein the right mounting seat (6) is rotatably connected with a right seat frame (8), wherein the left seat frame (7) is rotatably connected with a left auxiliary plate (9), wherein the right seat frame (8) is rotatably connected with a right auxiliary plate (10), wherein a synchronous rotation is fixedly connected between the left auxiliary plate (9) and the right auxiliary plate (10). Rod (11), a left seat back frame (12) is fixedly connected to the left auxiliary plate (9), and a right seat back frame (13) is fixedly connected to the right auxiliary plate (10), the auxiliary back frame comprises a left alloy tube (14) and a right alloy tube (15), the top ends of the left alloy tube (14) and the top ends of the right alloy tube (15) are both provided with connecting elbows (16), the two connecting elbows (16) are respectively connected to the left alloy tube (14) and the right alloy tube (15) through a first anti-loosening screw (17), a transverse tube (19) is connected between the two connecting elbows (16) through a second anti-loosening screw (18), the bottom ends of the left alloy tube (14) and the bottom ends of the right alloy tube (15) are both provided with connecting structures, and the two connecting structures are respectively matched with the left seat back frame (12) and the right seat back frame (13); The two connection structures each comprise a gradient frame (20), the two gradient frames (20) being fixedly connected to the left alloy tube (14) and the right alloy tube (15) respectively, the bottom ends of the two gradient frames (20) being provided with a support surface (21), the two support surfaces (21) being matched with the top of the left seat back frame (12) and the top of the right seat back frame (13) respectively, the two gradient frames (20) being fixedly connected with a vertical plate (22), the bottom ends of the two vertical plates (22) being fixedly connected with a plug-in bent plate (23), the left seat back frame (12) and the right seat back frame (13) being provided with a plug-in hole, the two plug-in holes being matched with the two plug-in bent plates (23) respectively, the two vertical plates (22) being provided with a stepped connection hole, the two stepped connection holes being provided with a countersunk bolt (24), and the two countersunk bolts (24) being threadedly connected with a locking nut.

2. The assembled seat frame assembly according to claim 1, It is characterized in that The anti-loosening nut comprises a basic nut (25) and a plurality of extension frames (26); the basic nut (25) is threadedly connected to the countersunk bolt (24); the plurality of extension frames (26) are fixedly connected to the basic nut (25); an anti-loosening plate (27) is fixedly connected between each two adjacent extension frames (26) among the plurality of extension frames (26); a plurality of anti-loosening surfaces (28) are provided on the countersunk bolt (24); the anti-loosening surfaces (28) match the anti-loosening plates (27).

3. The assembled seat frame assembly according to claim 2, It is characterized in that The bottom ends of the two connecting elbows (16) are each provided with a bottom insertion tube (29), and the ends of the two connecting elbows (16) close to each other are each fixedly connected with a top insertion tube (30), the two bottom insertion tubes (29) are respectively inserted into the left alloy tube (14) and the right alloy tube (15), and the two top insertion tubes (30) are respectively inserted from the left and right ends of the horizontal tube (19).

4. The assembled seat frame assembly according to claim 3, It is characterized in that A plurality of side grooves are arranged on the nut of the first anti-loosening screw (17) and the nut of the second anti-loosening screw (18), and anti-loosening strips (31) are arranged in the plurality of side grooves, and a gap is arranged between the anti-loosening strips (31) and the nut.

5. The assembled seat frame assembly according to claim 4, It is characterized in that The left seat frame (7), the right seat frame (8), the left seat back frame (12) and the right seat back frame (13) are all provided with a plurality of weight-reducing openings (32) and a plurality of auxiliary mounting holes (33).

6. The assembled seat frame assembly according to claim 5, It is characterized in that Two headrest mounting tubes (34) are fixedly connected to the transverse tube (19), and the two headrest mounting tubes (34) are arranged in a left-right symmetrical manner.

7. The assembled seat frame assembly according to claim 6, It is characterized in that A synchronous frame (35) is fixedly connected between the left sliding sleeve (3) and the right sliding sleeve (4).

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