Chair leg frame of folding swivel chair

Abstract

The utility model relates to a chair leg frame of a folding swivel chair. The chair leg frame comprises a supporting disc, a sliding disc, supporting legs, a connecting rod and a guide pipe, the ends of a plurality of supporting legs are hinged to the supporting disc, one ends of connecting rods with the corresponding number are hinged to the supporting legs, the other ends of the connecting rods are hinged to the sliding disc, and the supporting disc and the sliding disc are connected through the guide pipe. The chair leg frame is characterized in that the chair leg frame is opened in place, the included angle between the connecting rod and the guide pipe ranges from 92 degrees to 110 degrees, the end, hinged to the supporting leg, of the connecting rod is outwards provided with an extending section, and the extending section serves as a foot rest. The folding device has the advantages of being ingenious in conception, simple in structure, free of occupying folding space and free of redundant actions. According to the folding swivel chair, the outer extending sections of the hinge points of the connecting rods are organically utilized for supporting feet, the problem of supporting feet of a high stool and a swivel chair is solved, two feet can be supported during use, the folding swivel chair is natural, easy and safe, an existing folding swivel chair can be expanded into a shooting chair, an observation chair or a referee chair, and the folding swivel chair is suitable for more diverse use occasions.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of folding chair, in particular to a chair foot frame of folding swivel chair, and especially provides a foot rest function. BACKGROUND

[0002] CN201710831683.9 discloses a split type folding furniture supporting device, which comprises an upper supporting part and a lower supporting part. The upper supporting part is inserted into the guide pipe of the lower supporting part through a shaft rod to form an abutting positioning with the lower supporting part. The lower end surface of the upper main disc abuts on the upper end surface of the lower main disc to form a load bearing support. The supporting device can be used to make a folding table, a slim waist high stool and a rotary backrest chair, and has the functions of splitting, folding and rotating. Patent for extension CN202110210358.7 discloses a folding swivel chair support, which comprises a seat frame and a chair foot frame. The seat frame comprises a first supporting rod, a second supporting rod and a seat cushion rod which are mutually hinged and are foldably connected by a rotating disc and a shaft rod fixed on the first supporting rod. The seat frame is inserted into the guide pipe of the chair foot frame through the shaft rod to form an abutting positioning with the chair foot frame. The rotating disc on the seat frame abuts on the supporting disc of the chair foot frame to form a rotatable load bearing support.

[0003] The above-mentioned lower supporting part and chair foot frame are the same basic structure, and also include CN201920569842.7 which discloses a foot pipe assembly in a rotary chair with adjustable foot pipe length. The above-mentioned chair foot frame comprises a supporting disc, a sliding disc, supporting feet, connecting rods and a guide pipe. A plurality of supporting feet are hingedly connected to the supporting disc. A corresponding number of connecting rods are hingedly connected to the supporting feet at one end and to the sliding disc at the other end. The guide pipe is fixed on the through hole of the supporting disc and passes through the center hole of the sliding disc. The foot pipe in CN201920569842.7 also adopts an extension structure to meet the height adjustment function of the swivel chair. However, when the swivel chair is raised, the feet cannot be supported on the ground, which is a new problem.

[0004] How to overcome the shortcomings of the prior art and provide a solution for foot rest has become the object of the present utility model. SUMMARY

[0005] The utility model aims at designing a folding swivel chair chair foot frame which uses the connecting rod outside the hinge point of the extending supporting feet as a foot rest.

[0006] The utility model discloses a chair foot support of folding swivel chair, including: support disc, sliding disc, support foot, connecting rod and guide pipe, a plurality of support foot end articulates on the support disc, corresponding number connecting rod one end articulates on the support foot, the other end articulates on the sliding disc, is associated with the support disc and sliding disc by the guide pipe, its characterized in that: chair foot support opens to the in-place, the included angle between connecting rod and guide pipe is between 92 degrees to 110 degrees, and there is extension section outwardly in the articulation end with support foot, and the extension section is used as the footrest by means of this.

[0007] The extension section of the connecting rod extends outwardly 6cm-15cm from the articulation point.

[0008] The extension section of the connecting rod is fixed with a foot pad, and the foot pad is a plastic formed rectangular block, and the surface is formed with anti-skid texture, and the bottom surface is provided with two arc grooves, one arc groove is matched with the surface of the connecting rod and is fixed through rivet, and the other arc groove is matched with the surface of the support foot, and the arc groove can accommodate the support foot when folding, and the inner end of the arc groove is provided with a notch opening to the surface, and the swing space of the opening support foot is provided.

[0009] The articulation rivet of the connecting rod and the support foot also passes through the foot pad, and the foot pad is located at the far end of the articulation point, and the surface starts to incline and thin downwardly, and the inclination angle is between 10 degrees and 15 degrees.

[0010] The bottom surface of the support disc is uniformly provided with three to six articulation seats for articulating the support foot, and the surface edge is formed with a flange plate, and the flange plate edge can be hung by the clamping hook on the seat frame to prevent the flange plate from falling off, and the two are maintained as a rotating integral structure.

[0011] The utility model discloses the clever idea, simple structure, does not occupy folding space, does not need the characteristics of the extra action, organically uses the extension section of the connecting rod articulation point to provide the footrest, solves the footrest problem of the high stool and the swivel chair, and when using, both feet can obtain the support, can be more natural and relaxed, and also more safe, and can expand the existing folding swivel chair into a shooting chair, an observation chair or a referee chair, and adapt to more diversified use occasions. DRAWINGS:

[0012] The utility model will be further described below in combination with specific examples:

[0013] Figure 1 The folding swivel chair frame schematic view is shown

[0014] Figure 2 The folding swivel chair foot support opening state schematic view is shown

[0015] Figure 3 The folding swivel chair foot support folding state schematic view is shown

[0016] Figure 4Forward view of the folding swivel chair foot frame

[0017] Figure 5 Forward view of the folding swivel chair foot frame

[0018] Figure 6 Forward view of the folding swivel chair foot frame

[0019] Wherein

[0020] 100 - chair foot frame;

[0021] 1 - support disc; 11 - hinged seat; 12 - flange disc;

[0022] 2 - sliding disc;

[0023] 3 - support leg;

[0024] 4 - connecting rod; 41 - extension section;

[0025] 5 - guide tube;

[0026] 6 - foot pad; 61 - non-slip texture; 62 - arc-shaped slot; 63 - notch;

[0027] 200 - seat frame; 201 - clasp;

[0028] X - angle between connecting rod and guide tube;

[0029] Y - inclination angle;

[0030] L - extension section length; DETAILED DESCRIPTION

[0031] Referring to Figure 1 , the folding swivel chair frame includes a chair foot frame 100 and a seat frame 200, and the connecting part is supported by the upper and lower support discs. The seat frame 200 can rotate around the guide tube to achieve the basic function of the swivel chair.

[0032] Referring to Figures 1 to 4 , the folding swivel chair foot frame includes a support disc 1, a sliding disc 2, a support leg 3, a connecting rod 4, and a guide tube 5. A plurality of support legs 3 are hinged at the ends to the support disc 1, and a corresponding number of connecting rods 4 are hinged at one end to the support legs 3 and at the other end to the sliding disc 2. The support disc 1 and the sliding disc 2 are associated by the guide tube 5. That is, the guide tube 5, each set of support legs 3, and connecting rods 4 form an openable and foldable triangular structure. The lower ends of the plurality of support legs 3 are spread out to the ground, collectively forming support for the upper seat frame 200.

[0033] Wherein, the chair foot frame 100 is opened to the right position, the angle X between the connecting rod 4 and the guide tube 5 is between 92 degrees and 110 degrees, and the connecting rod 4 has an extension section 41 outwardly from the hinged end of the support leg 3, which serves as a footrest.Figure 2 For example Figure 4 The extension section 41 of the connecting rod extends outward from the hinge point by a length L of 6-15 cm, providing at least resting support for the heel. The open connecting rod 4 is slightly inclined downward to facilitate upward movement of the sliding disc 2 during folding.

[0034] To improve the comfort of the footrest, a foot pad 6 is fixed to the surface of the extension section 41 of the connecting rod. The foot pad 6 is a plastic rectangular block with anti-slip texture 61 on the surface and two arc-shaped grooves 62 on the bottom. One arc-shaped groove 62 is in line with the surface of the connecting rod 4 and is fixed by a rivet. The other arc-shaped groove is in line with the surface of the support foot 3 and can accommodate the lower support foot 3 during folding. A slot 63 is provided at the inner end of the arc-shaped groove to provide space for the swing of the support foot 3. The foot pad 6 increases the footrest area without affecting the opening and folding actions, and minimizes the occupied space after folding. Figure 3 Furthermore, the hinge rivet of the connecting rod 4 and the support foot 3 also passes through the foot pad 6, and the foot pad 6 is inclined downward and thinned at a distance of one-fourth of the hinge point. The inclination angle Y is between 10 and 15 degrees, and the distal end of the foot pad 6 is retracted after folding, avoiding the inconvenience of the two angles. Figure 3

[0035] In addition, the bottom surface of the support disc 1 is evenly distributed with three to six hinge seats 11 for the hinge support foot, and the surface edge is formed with a flange 12. The edge of the flange 12 can be hung by the clasp 201 on the seat frame 200 to prevent disengagement, maintaining the two as a rotating integral structure. That is, during use, it remains a whole, even if the seat frame 200 is lifted, it can also be connected with the chair leg frame 100, avoiding disconnection, and using the gap to hang in the air, without affecting the rotating function of the seat frame 200.​

Claims

1. A chair footrest for a folding swivel chair, comprising: Supporting disc, sliding disc, supporting leg, connecting rod and guide tube; The ends of the supporting legs are hinged to the supporting disc, the ends of the corresponding number of connecting rods are hinged to the supporting legs and the other ends are hinged to the sliding disc, and the supporting disc and the sliding disc are associated by the guide tube; characterized in that the chair leg frame is opened to the position, the included angle between the connecting rod and the guide tube is between 92 degrees and 110 degrees, and the connecting rod has an extension segment outwardly from the hinged end of the supporting leg, which serves as a footrest.

2. The folding swivel chair footrest of claim 1 wherein: The extension segment of the connecting rod extends outwardly from the hinged point by 6-15 cm.

3. A folding swivel chair footrest according to claim 1 or 2, characterized in that: The surface of the extension segment of the connecting rod is fixed with a foot pad, which is a plastic molded rectangular block, the surface of which is formed with anti-skid texture, and the bottom surface is formed with two arc-shaped grooves, one of which is matched with the surface of the connecting rod and is fixed by a rivet, and the other is matched with the surface of the supporting leg, and when folded, the arc-shaped groove can accommodate the supporting leg, and the inner end of the arc-shaped groove is provided with a slot opening to the surface, providing a swing space for opening the supporting leg.

4. The folding swivel chair footrest of claim 3 wherein: The hinging rivet of the connecting rod and the supporting leg also passes through the foot pad, and the foot pad is located at the distal quarter of the hinged point, and the surface starts to slope downward and thin, with a slope angle of 10-15 degrees.

5. The folding swivel chair footrest of claim 1 wherein: The bottom surface of the supporting disc is uniformly distributed with three to six hinged seats for hinging the supporting legs, and the surface edge is formed with a flange, which can be hung by a hook provided on the seat frame to prevent disengagement, maintaining the two as a rotating integral structure.

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