CN217852034U

CN217852034U - Folding chair seat board and bottom frame thereof

Info

Publication number: CN217852034U
Application number: CN202220932706.1U
Authority: CN
Inventors: 冷鹭浩
Original assignee: New Tec Integration Xiamen Co Ltd
Current assignee: New Tec Integration Xiamen Co Ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-11-22
Anticipated expiration: 2032-04-21

Abstract

The utility model discloses a folding chair bedplate and underframe thereof, the underframe are the metalwork, are the rectangular shape and four corner positions go up rounding off, the outside limit symmetry on the left outside limit of underframe and right side is equipped with the gliding long spout that is used for supplying T shape rivet that extends along the fore-and-aft direction, long spout one end is equipped with the reaming that supplies the cap edge of T shape rivet to get into from the outside, and the width on T shape rivet cap edge is greater than the notch width of long spout is nevertheless less than simultaneously reaming width, pack into at T shape rivet on the reaming position install the articulated rivet of chair leg behind the long spout. Set up long spout on the underframe to long spout one end is equipped with the reaming, and the long spout can directly be packed into through the reaming to the T shape rivet, then can be directly encapsulated on the reaming by the articulated rivet of chair leg again, and the articulated rivet of T shape rivet and chair leg can be used for connecting the preceding leg and the back leg of chair side respectively like this, and the structure is fairly simple, has the more simple and convenient advantage of assembly.

Description

Folding chair seat board and bottom frame thereof

Technical Field

The utility model relates to a folding chair seat board and underframe thereof.

Background

The underframe of folding chair seat board is used for the installation panel on the one hand, and on the other hand is connected with foreleg and back leg, and foreleg and back leg are X shape intersection setting, and the turning point of foreleg and back leg, the turning point of foreleg and underframe, the turning point of back leg and underframe constitute a triangle-shaped, because folding chair need can be folded, the triangle-shaped that three turning point constitutes in folding process is changing always, therefore folding chair's the structure of stepping down is indispensable. The abdicating structure is generally provided with two types, one type is that the rear leg or the front leg is telescopic, and the other type is that the rotating point of the front leg and the rear leg or the rotating point of the front leg and the bottom frame is slidable. The folding principle is well known to those skilled in the art, and the common sliding structure of the rotation point of the front leg and the rear leg or the rotation point of the front leg and the bottom frame is to arrange a long iron sheet on the seat plate, the iron sheet has a long hole, one end of the rotating shaft is connected with the front leg or the rear leg during assembly, and the other end is inserted into the long hole and is limited by a limiting member such as a bolt to prevent the rotating shaft from disengaging.

SUMMERY OF THE UTILITY MODEL

The utility model provides a folding chair seat board and underframe thereof, the assembly is more simple and convenient. The utility model provides a technical scheme that its technical problem adopted is:

the underframe of folding chair bedplate is the metalwork, is rectangular shape and four corner positions go up smooth transition, the outside symmetry on underframe left side outside limit and the right side is equipped with the gliding long spout that is used for supplying T shape rivet along the fore-and-aft direction extension, long spout one end is equipped with the reaming that supplies the brim of T shape rivet to get into from the outside, and the width on T shape rivet brim is greater than the notch width of long spout is nevertheless less than simultaneously reaming width, pack into at T shape rivet on the reaming position installation chair leg hinge rivet behind the long spout.

Set up long spout on the underframe to long spout one end is equipped with the reaming, and the long spout can directly be packed into through the reaming to the T shape rivet, then can be directly encapsulated on the reaming by the articulated rivet of chair leg again, and the articulated rivet of T shape rivet and chair leg can be used for connecting the preceding leg and the back leg of chair side respectively like this, and the structure is fairly simple, has the more simple and convenient advantage of assembly.

In a preferred embodiment: the section of the bottom frame is of a closed-loop hollow pipe structure.

In a preferred embodiment: the inner side and the outer side of the section of the bottom frame are vertical edges.

In a preferred embodiment: the section of underframe is the non-closed loop, and one side is open structure inwards.

In a preferred embodiment: the outer side edge of the section of the bottom frame is a vertical edge, and the bottom edge of the section of the bottom frame is a horizontal straight edge.

In a preferred embodiment: the inner end of the bottom edge of the section of the bottom frame faces upwards and is bent towards the inside of the bottom frame to form a C-shaped extending section, or the C-shaped extending section is bent to form an inclined extending section, the tail end of the extending section is pressed against the bottom edge of the section of the bottom frame, or the C-shaped extending section is bent to form a horizontal extending section and is overlapped against the bottom edge of the section of the bottom frame. The extension section can improve the strength of the bottom frame.

In a preferred embodiment: and bending steps are formed at the top end position and the bottom end position of the outer side edge of the bottom frame section. The bending step can be easily matched and connected with the C-shaped sheath.

Folding chair bedplate, including the panel, the panel is the plastic uptake panel, the panel is the rectangle shape and four corner positions go up rounding off, the panel is formed with turn-ups under the round of turning over downwards all around, still includes the underframe, and the underframe is the metalwork, is the rectangle shape and four corner positions go up rounding off, the outside limit symmetry on underframe left outside limit and right side is equipped with along the fore-and-aft direction extension be used for supplying the gliding long spout of T shape rivet, long spout one end is equipped with the reaming that supplies the cap edge of T shape rivet to get into from the outside, and the width on T shape rivet cap edge is greater than the notch width of long spout is nevertheless less than simultaneously reaming width, pack into at T shape rivet on the reaming position installation chair leg hinge rivet behind the long spout, the underframe top surface is equipped with the round mounting groove, the turn-ups down inserts from last the mounting groove. The bedplate includes panel and underframe, and the panel is connected on the underframe, and the underframe has brought simple structure simple and convenient advantage of assembly equally. Moreover, the lower flanging of the whole circle around the panel is assembled in the mounting groove, so that the panel is very firm in fixation and is uniform in stress around the panel.

In a preferred embodiment: the mounting groove is formed between the inner side retaining edge and the outer side pressing edge, and the inner side retaining edge and the outer side pressing edge are matched, clamped and fixed to the lower flanging.

In a preferred embodiment: the inner side flange is a vertical edge, the lower flange is inserted into the mounting groove and then leans against the inner side flange, and the outer side flange is bent inwards to deform and is clamped and fixed during assembly.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is a perspective view of a folding chair using the seat plate of the present invention.

Fig. 2 is a schematic view of the main body of the seat plate of the present invention.

Fig. 3 is an exploded perspective view of the seat plate of fig. 2 prior to assembly.

FIG. 4 is a schematic perspective view of the bottom frame shown in FIG. 2.

Fig. 5 is a partial cross-sectional view of the seat plate shown in fig. 2.

FIG. 6 is a schematic view of the seat pan of FIG. 2 with the down-turned edge placed in the mounting pocket and the down-turned edge in an unsecured condition.

Fig. 7 is a schematic view showing a first structural modification of the bottom frame of the seat plate of the present invention shown in fig. 2.

Fig. 8 is a schematic view showing a second structural modification of the bottom frame of the seat plate of the present invention shown in fig. 2.

Fig. 9 is a schematic view showing a third structural modification of the bottom frame of the seat plate of the present invention shown in fig. 2.

Fig. 10 is a schematic view illustrating a fourth structural modification of the bottom frame of the seat plate of the present invention shown in fig. 2.

Fig. 11 is a schematic view showing a fifth structural modification of the bottom frame of the seat plate of the present invention shown in fig. 2.

Detailed Description

Referring to fig. 1 to 6, the seat plate 100 can be assembled with the front legs 200 and the rear legs 300 to form a foldable chair. The seat plate 100 comprises a panel 10 and a bottom frame 20, wherein the panel 10 is connected to the bottom frame 20, and the bottom frame 20 is connected to the front legs 200 and the rear legs 300. The bottom frame 20 is a metal member, and is rectangular and rounded at four corner positions. The outer side edge of the left side and the outer side edge of the right side of the bottom frame 20 are symmetrically provided with long sliding grooves 21 which extend along the front-back direction and are used for the T-shaped rivets 400 to slide, one end of each long sliding groove 21 is provided with a hole expanding 22 for the cap edge 401 of the T-shaped rivet to enter from the outside, and the width of the cap edge 401 of the T-shaped rivet is larger than the width of the notch of the long sliding groove 21 but smaller than the width of the hole expanding 22. And a chair leg hinged rivet 500 is arranged at the position of the reaming hole 22 after the T-shaped rivet 400 is arranged in the long sliding groove 21. Therefore, in the embodiment, it can be seen that the front leg 200 is connected to the bottom frame 20 by the T-shaped rivet 400, and the rear leg 300 is connected to the bottom frame 20 by the leg hinge rivet 500, and during the folding process, the T-shaped rivet 400 can slide in the long sliding groove 21 to give way.

When the seat plate 100 is assembled, the front leg 200 and the rear leg 300 can be connected to each other by the T-shaped rivet 400 and the leg hinge rivet 500, respectively, and the assembly is simple.

Preferably, the cross section of the bottom frame 20 is a closed loop hollow pipe structure. In this embodiment, the inner and outer sides of the cross section of the bottom frame 20 are vertical sides.

Of course, the section of the bottom frame 20 may also be an open loop structure, as shown in fig. 9-11, and the inward side of the bottom frame 20 is an open structure. Further preferably, the outer side of the cross section of the bottom frame 20 is a vertical side, and the bottom side of the cross section of the bottom frame is a horizontal straight side. In fig. 9, the inner end of the bottom edge of the cross section of the bottom frame is bent upward and toward the inside of the bottom frame to form a C-shaped extension 23. In fig. 10, the inner end of the bottom side of the cross section of the bottom frame is upward and bent toward the inside of the bottom frame to form an inclined extension section 23, and the end of the extension section is pressed against the bottom side of the cross section of the bottom frame. In fig. 11, the inner end of the bottom edge of the cross section of the bottom frame is bent upward and toward the inside of the bottom frame to form a horizontal extension 23 and is overlapped against the bottom edge of the cross section of the bottom frame.

Still referring to fig. 1 to 6, preferably, the bottom frame 20 is formed with bending steps 24 at top and bottom positions of an outer side of a cross section thereof.

In this embodiment, the panel 10 is a plastic-absorbing panel, the panel 10 is rectangular, four corners of the panel are smoothly transitioned, and a circle of downward turned-over edges 11 is formed around the panel. The top surface of the bottom frame 20 is provided with a circle of mounting groove 25, and the lower flanging is inserted into the mounting groove 25 from top to bottom.

Preferably, the top of the bottom frame 20 is bent to form a circle of inner side rib 26 and a circle of outer side pressing edge 27, the mounting groove 25 is formed between the inner side rib and the outer side pressing edge, and the inner side rib 26 and the outer side pressing edge 27 are matched to clamp and fix the lower flanging 11. Further preferably, the inner side rib 26 is a vertical rib, the lower flange 11 is inserted into the mounting groove 25 and then abuts against the inner side rib 26, and the outer side pressing edge 27 is bent inwards to deform and clamp and fix the lower flange 11 during assembly.

The inside rib 26 and the outside rib 27 are used for clamping and fixing the lower flange 11, and the inside rib 26 may be higher than the outside rib 27 (as shown in fig. 5 and 9), or the inside rib 26 may be lower than the outside rib 27 (as shown in fig. 7 and 10), or the inside rib 26 may be as high as the outside rib 27 (as shown in fig. 8 and 11).

The foregoing is only a preferred embodiment of the present invention, and therefore the scope of the invention should not be limited by this, and the equivalent changes and modifications made in the claims and the description should be considered within the scope of the present invention.

Claims

1. The underframe of the folding chair plate is a metal piece, is in a rectangular shape, and is in smooth transition at four corner positions, and is characterized in that: the chair leg hinge rivet is characterized in that long sliding grooves which extend in the front-back direction and are used for enabling T-shaped rivets to slide are symmetrically formed in the outer side edge of the left side and the outer side edge of the right side of the bottom frame, counterbores which are used for enabling cap edges of the T-shaped rivets to enter from the outside are formed in one end of each long sliding groove, the width of each T-shaped rivet cap edge is larger than the width of a notch of each long sliding groove and smaller than the width of each counterbore, and the T-shaped rivets are installed on the counterbores and are installed behind the long sliding grooves.

2. The bottom frame of a folding seat pan of claim 1, wherein: the section of the bottom frame is of a closed-loop hollow pipe structure.

3. The bottom frame of a folding seat pan of claim 2, wherein: the inner side and the outer side of the section of the bottom frame are vertical edges.

4. The bottom frame of a folding seat pan of claim 1, wherein: the section of the bottom frame is a non-closed loop, and one side facing inwards is an open structure.

5. The bottom frame of a folding seat pan of claim 4, wherein: the outer side edge of the section of the bottom frame is a vertical edge, and the bottom edge of the section of the bottom frame is a horizontal straight edge.

6. The bottom frame of a folding seat pan of claim 5, wherein: the inner end of the bottom edge of the section of the bottom frame faces upwards and is bent towards the inside of the bottom frame to form a C-shaped extending section, or the C-shaped extending section is bent to form an inclined extending section, the tail end of the extending section is pressed against the bottom edge of the section of the bottom frame, or the C-shaped extending section is bent to form a horizontal extending section and is overlapped against the bottom edge of the section of the bottom frame.

7. The bottom frame of a folding chair seat plate as claimed in any one of claims 1 to 6, wherein: and bending steps are formed at the top end position and the bottom end position of the outer side edge of the bottom frame section.

8. Folding chair bedplate, including the panel, the panel is the plastic uptake panel, the panel is the rounding off on rectangular shape and four corner positions, the panel is formed with turn-ups under the round of turn-ups that turns over down all around, its characterized in that: the bottom frame of any one of claims 1 to 7, further comprising a ring of mounting grooves formed on the top surface of the bottom frame, and the downward flange is inserted into the mounting grooves from top to bottom.

9. The folding seat pan of claim 8, wherein: the mounting groove is formed between the inner side retaining edge and the outer side pressing edge, and the inner side retaining edge and the outer side pressing edge are matched, clamped and fixed to the lower flanging.

10. The folding chair seat board of claim 9, wherein: the inner side flange is a vertical edge, the lower flange is inserted into the mounting groove and then leans against the inner side flange, and the outer side flange is bent inwards to deform and is clamped and fixed during assembly.