Folding ground chair with arc-shaped backrest

Abstract

The utility model provides a folding ground chair with an arc-shaped backrest, which is characterized by comprising a fixed frame and a backrest, a seat cushion is arranged on the fixed frame, the fixed frame is movably connected with the backrest through at least two folding parts, each folding part comprises a connecting frame and a rotating frame, and the connecting frame is movably connected with the rotating frame. One end of the connecting frame is fixedly connected with the fixed frame, the other end of the connecting frame is rotatably connected with one end of the rotating frame, and the other end of the rotating frame is fixedly connected with the backrest. The folding chair can be placed on the ground and any articles through the fixing frame, is convenient to fold and use, and is wide in application range.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of folding chairs, in particular to a folding floor chair with an arc-shaped backrest. Background Art

[0002] In modern life, chairs are essential daily furniture for people to sit and rest, avoiding fatigue caused by lying or standing for a long time, and reducing energy consumption of standing for a long time; Existing patent application number: 202220264500.6, discloses a new outdoor folding chair, including a folding chair, a side wall of the rear support beam of the folding chair is provided with a mounting groove, the folding chair is used to connect the backrest main beam and the rear support beam of the folding chair. The connecting assembly includes the lower end of the main beam, an arc plate and a limiting mechanism for connecting the lower end of the main beam and the arc plate The utility model discloses a folding chair, wherein the lower end of the arc plate is installed in the installation groove, the arc plate is provided with an arc groove on the side surface close to the lower end of the main beam, a through hole is provided on the upper end of the inner side surface of the arc groove, the limiting mechanism comprises a sliding clamping rod and a limiting rod installed at the lower end of the main beam, the end surface of the sliding clamping rod is provided with a circular groove, the limiting rod is installed in the circular groove, one end of the limiting rod is fixedly connected with a spring, and the spring is connected to the bottom surface of the circular groove. The utility model solves the problem that the backrest and the main body of the folding chair are inconvenient to be quickly folded as needed, which affects the folding of the folding chair.

[0003] With respect to the above-mentioned related technologies, the inventor believes that the existing ones are all provided with support frames or support feet, which are only suitable for use on the ground and cannot be applied to objects with heights such as desktops and chairs according to actual conditions. Utility Model Content

[0004] In order to solve the above problems in the background technology, the utility model provides a folding floor chair with an arc-shaped backrest.

[0005] The utility model adopts the following technical scheme: a curved backrest folding ground chair, characterized in that: it includes a fixed frame and a backrest, the fixed frame is provided with a seat cushion, the fixed frame and the backrest are movably connected by at least two folding parts, each of the folding parts includes a connecting frame and a rotating frame, one end of the connecting frame is fixedly connected to the fixed frame, the other end of the connecting frame is rotatably connected to one end of the rotating frame, and the other end of the rotating frame is fixedly connected to the backrest, the seat cushion and the backrest can be folded by the cooperation of the rotating frame and the connecting frame, and no supporting feet are provided, and it can be placed on the ground and any object through the fixed frame, which is convenient for folding and use and has a wide range of adaptability.

[0006] Preferably, the fixing frame includes two first rods and two second rods, the two first rods are symmetrically arranged at the two side end positions of the bottom of the seat cushion 1 relative to the human body after sitting down, and the two second rods are vertically fixed between the two first rods. By vertically arranging the first rods and the second rods, the stability of the fixing frame is increased, thereby improving the stability of the seat cushion.

[0007] Preferably, the connecting frame includes two symmetrically arranged L-shaped connecting pieces and a connecting plate connected to one side of the two L-shaped connecting pieces, a receiving groove is formed between the two L-shaped connecting pieces and the connecting plate, one end of the two first rods is embedded in the receiving groove and fixedly connected to the connecting frame, the bottom of the rotating frame is embedded in the receiving groove, and the two L-shaped connecting pieces are symmetrically provided with rotating holes and limiting holes, and the bottom of the rotating frame is provided with a rotating member, and the rotating member includes a rotating shaft and a movable shaft, the rotating shaft is rotatably connected to the rotating hole and passes through the rotating frame, and the movable shaft is slidably connected to the limiting hole and passes through the rotating frame, and the receiving groove formed by the L-shaped connecting piece and the connecting plate can accommodate the rotating frame, and the rotating frame can be rotated and folded in the receiving groove through the rotating shaft and movable shaft of the rotating member.

[0008] Preferably, the rotating frame includes two symmetrically arranged L-shaped rotating pieces and a rotating plate connected to the corresponding sides of the two L-shaped rotating pieces, and the bottom extending parts of the two rotating pieces are symmetrically provided with two pairs of axial holes, and the two pairs of axial holes are equidistant from the bottom edges of the L-shaped rotating pieces, and the rotating axis and the movable axis are respectively embedded in the two pairs of axial holes of the two L-shaped rotating pieces; the rotating axis and the movable axis are connected by the L-shaped rotating piece and the rotating plate as well as the L-shaped rotating piece, so that the overall rotating frame is embedded in the accommodating groove to realize rotation and folding.

[0009] Preferably, the rotating hole is circular, the size of the rotating hole is adapted to the cross-section of the rotating shaft, and the limiting hole is arc-shaped, the arc-shaped limiting hole limits the movable shaft, controls the rotation angle of the rotating shaft, and realizes the folding of the backrest relative to the seat cushion.

[0010] Preferably, the seat cushion is provided with a carrying portion for carrying, the carrying portion includes a shoulder strap, the shoulder strap is fixed to the rear side of the fixing frame, the shoulder strap is provided with a widened width, the widened width can be slid on the shoulder strap, the seat can be carried with the shoulder strap, and the position of the widened width on the shoulder strap can be adjusted by sliding the widened width, the position of the widened width can be adjusted according to different lengths, and the widened width can reduce the pressure of the shoulder strap on the user and improve the comfort.

[0011] Preferably, the carrying part comprises a hand strap, which is arranged at the side end of the fixing frame and is covered with an anti-slip cover, so as to facilitate lifting the seat for carrying and use.

[0012] Preferably, the backrest is provided with straps, and the straps are fixed to the bottom of the seat cushion by an adhesive portion, which can enhance the fixation of the seat after it is folded; the adhesive portion is Velcro, and the Velcro includes a sub-strap and a mother-strap, the sub-strap is arranged on the straps, and the mother-strap is arranged on the bottom of the seat cushion, which is convenient to use and enhances the fixing effect.

[0013] Preferably, the fixing frame is provided with a mounting tube at the lower side of the seat cushion, and the mounting tube is movably provided with a limiting column, the limiting column is in a U-shape, and its side end is laterally rotated on the mounting tube, and a limiting block is provided at the opening of the limiting column, and the width of the limiting block is greater than the inner diameter of the mounting tube. The fixing frame can be fixed on a table, a chair and other objects of height through the horizontal U-shaped limiting column, and the position of the U-shaped limiting column can be adjusted through the mounting tube, and the limiting column is limited and rotated in the mounting tube by the limiting block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model can fold the seat cushion and the backrest by cooperating with the rotating frame and the connecting frame, and no supporting feet are provided, and the seat cushion and the backrest can be placed on the ground or any object through the fixing frame, so the seat cushion and the backrest are convenient to fold and use, and have a wide range of applications.

[0016] The utility model forms an accommodating groove through an L-shaped connecting piece and a connecting plate, in which an L-shaped rotating piece and a rotating plate are embedded, and a rotating shaft is inserted into the rotating hole so that the L-shaped rotating piece and the rotating plate can be rotated in the accommodating groove to realize folding. During the folding process, the movable shaft is inserted into the limiting hole to limit the rotation angle of the L-shaped rotating piece and the rotating plate in the accommodating groove to realize folding angle limitation.

[0017] The utility model can be carried by providing a carrying part, namely, a shoulder strap and a hand strap, and can be placed on the ground, a tabletop, a chair or other objects for use at any time, and is connected to the tabletop or the chair through a U-shaped limiting column to achieve limiting fixation when the seat is in use.

[0018] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 This is an enlarged view of the structure of area A of the utility model;

[0021] Figure 3 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 4 The overall structure of the utility model is shown in FIG. Figure 3 ;

[0023] Figure 5 This is an enlarged view of the structure of area A of the present utility model.

[0024] In the figure: 1. seat cushion; 11. mother sticker; 2. backrest; 3. fixing frame; 31. first rod; 32. second rod; 33. mounting tube; 4. connecting frame; 41. L-shaped connecting piece; 411. rotating hole; 412. limiting hole; 42. connecting plate; 43. receiving groove; 5. rotating frame; 51. L-shaped rotating piece; 52. rotating plate; 53. rotating shaft; 54. movable shaft; 6. limiting column; 61. limiting block; 7. shoulder strap; 71. widening band; 8. hand strap; 9. binding strap; 91. sub-sticks. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0028] Please refer to the attached Figures 1 to 5A curved backrest folding floor chair comprises a fixed frame 3 and a backrest 2, a seat cushion 1 is arranged on the fixed frame 3, the fixed frame 3 is movably connected to the backrest 2 by at least two folding parts, each of the folding parts comprises a connecting frame 4 and a rotating frame 5, one end of the connecting frame 4 is fixedly connected to the fixed frame 3, the other end of the connecting frame 4 is rotatably connected to one end of the rotating frame 5, and the other end of the rotating frame 5 is fixedly connected to the backrest 2. The seat cushion 1 and the backrest 2 can be folded by the cooperation of the rotating frame 5 and the connecting frame 4, and no supporting feet are provided. The fixed frame 2 can be placed on the ground and any object, which is convenient for folding and use and has a wide range of adaptability.

[0029] In the utility model, the fixing frame 3 includes two first rods 31 and two second rods 32. The two first rods 31 are symmetrically arranged at the two side end positions of the bottom of the seat cushion 1 relative to the human body after sitting, and the two second rods 32 are fixed between the two first rods 31 in a vertical manner. When the user sits on the seat cushion 1, the fixing frame 3 supports the user. The first rods 31 and the second rods 32 are vertically arranged to increase the stability of the fixing frame 3, thereby improving the stability of the seat cushion 1.

[0030] In the present invention, the connecting frame 4 includes two symmetrically arranged L-shaped connecting pieces 41 and a connecting plate 42 connected to the corresponding side of the two L-shaped connecting pieces 41, and a receiving groove 43 is formed between the two L-shaped connecting pieces 41 and the connecting plate 42, and one end of the two first rod bodies 31 is embedded in the receiving groove and fixedly connected to the connecting frame 4, and the bottom of the rotating frame 5 is embedded in the receiving groove, and the two L-shaped connecting pieces are symmetrically provided with rotating holes 411 and limiting holes 412, and a rotating member is provided at the bottom of the rotating frame 5, and the rotating member includes a rotating shaft 53 and a movable shaft 54, and the rotating shaft 53 is rotatably connected to the rotating hole 411 and passes through the rotating frame 5, and the movable shaft 54 ​​is slidably connected to the limiting hole 412 and passes through the rotating frame 5, and the receiving groove 43 formed by the L-shaped connecting piece 41 and the connecting plate 42 can accommodate the rotating frame 5, and the rotating frame 5 is rotated and folded in the receiving groove 43 through the rotating shaft 53 and the movable shaft 54 ​​of the rotating member.

[0031] In the utility model, the rotating frame 5 includes two symmetrically arranged L-shaped rotating pieces 51 and a rotating plate 52 connected to the corresponding side of the two L-shaped rotating pieces 51. The two rotating pieces 51 are symmetrically provided with two pairs of axial holes at the bottom extension parts of the two L-shaped rotating pieces 51. The two pairs of axial holes are equidistant from the bottom edge of the L-shaped rotating pieces. The rotating shaft 53 and the movable shaft 54 ​​are respectively embedded in the two pairs of axial holes of the two L-shaped rotating pieces. The rotating shaft 53 and the movable shaft 54 ​​are connected by the L-shaped rotating piece 51 and the rotating plate 52 as well as the L-shaped rotating piece, so that the overall rotating frame 5 is embedded in the accommodating groove 43 to realize rotation and folding.

[0032] In the present invention, the rotating hole 411 is circular, and the size of the rotating hole 411 is adapted to the cross-section of the rotating shaft 53. The limiting hole 412 is arc-shaped, and the arc-shaped limiting hole 412 limits the movable shaft 54 ​​to control the rotation angle of the rotating shaft to achieve folding of the backrest 2 relative to the seat cushion 1.

[0033] In the utility model, the seat cushion 1 is provided with a carrying portion for carrying, and the carrying portion includes a shoulder strap 7, and the shoulder strap 7 is fixed to the rear side of the fixing frame 3. The shoulder strap 7 is provided with a widened width 71, and the widened width 71 can be slid on the shoulder strap 7. The position of the widened width 71 on the shoulder strap 7 can be adjusted by sliding the widened width 71. The position of the widened width 71 can be adjusted according to different lengths. The widened width 71 can reduce the pressure brought by the shoulder strap 7 to the user, improve the comfort, and facilitate carrying the folding seat.

[0034] In the utility model, the carrying part includes a hand strap 8, and the hand strap 8 is arranged at the side end of the fixing frame 3. An anti-slip cover is provided on the hand strap 8. The folding seat can be advanced at any time through the hand strap 8, and the friction force is enhanced by the anti-slip cover, thereby improving the firmness of the user's hand grip and facilitating carrying.

[0035] In the utility model, the backrest 2 is provided with a strap 9, and the strap 9 is fixed to the bottom of the seat cushion 1 through an adhesive portion; the adhesive portion is a Velcro, and the Velcro includes a sub-sticker 91 and a mother sticker 11, the sub-sticker 91 is arranged on the strap 9, and the mother sticker 11 is arranged at the bottom of the seat cushion 1. The sub-sticker 91 and the mother sticker 11 are adhered together, so that the elastic strap 9 can fix the seat cushion 1 and the backrest 2, which is convenient to carry and use and enhances the fixing effect.

[0036] In the utility model, the fixing frame 3 is provided with a mounting tube 33 at the lower side of the seat cushion 1, and the mounting tube 33 is movably provided with a limiting column 6. The limiting column 6 is in a U-shape, and its side end is laterally rotated on the mounting tube 33. A limiting block 61 is provided at the opening of the limiting column 6. The width of the limiting block 61 is greater than the inner diameter of the mounting tube 33. The fixing frame 3 can be fixed on a table, a chair or other objects with height through the horizontal U-shaped limiting column 6, and the position of the U-shaped limiting column 6 can be adjusted through the mounting tube 33. The limiting column 6 is limited and rotated in the mounting tube 33 by the limiting block 61.

[0037] The implementation principle of the utility model of a curved back folding floor chair is:

[0038] The backrest 2 is rotated, and the rotating frame 5 connected to it rotates on the connecting frame 4 along the rotating shaft 53, that is, the two L-shaped rotating pieces 51 and the rotating plate 52 rotate along the rotating shaft 53 in the receiving groove 43 formed by the L-shaped connecting piece 41 and the connecting plate 42, driving the movable shaft 54 ​​to move in the arc-shaped limiting hole 412, so that the backrest 2 is folded parallel to the seat cushion 1, and the arc-shaped limiting hole 412 limits the movable shaft 54. After folding, the strap 9 on the rear side of the backrest 2 is pulled forward to bypass the seat cushion 1, so that the sub-sticker 91 is connected to the mother sticker 11 at the bottom of the seat cushion 1, and the strap 9 fixes the seat cushion 1 and the folding opening of the backrest 2, and then the folding chair is carried on the back of the shoulder strap 7 or carried by the hand strap 8. It is convenient to carry and take. When using the shoulder strap 7, the position of the widened band 71 can be slidably adjusted to increase the contact surface, reduce the pressure of the gravity of the seat on the same position of the user, disperse the gravity, and improve the comfort. When using the hand strap 8, the stability of carrying can be improved by the anti-slip sleeve;

[0039] When in use, separate the sub-sticker 91 and the main sticker 11, rotate the backrest 2, and the connected rotating frame 5 rotates along the rotating axis 53 on the connecting frame 4, that is, the L-shaped rotating piece 51 and the rotating plate 52 rotate along the rotating axis 53 in the accommodating groove 43, and drive the movable shaft 54 ​​to move in the arc-shaped limiting hole 412, so that the backrest 2 is perpendicular to the seat cushion 1, and then place the fixing frame 3 on the ground or limit the fixing frame 3 to a high object such as a table or chair through the horizontal U-shaped limiting column 6 for easy use.

[0040] The above description of the utility model is exemplified in combination with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A curved back folding floor chair, characterized in that: The invention comprises a fixed frame (3) and a backrest (2), wherein a seat cushion (1) is provided on the fixed frame (3), and the fixed frame (3) and the backrest (2) are movably connected via at least two folding parts, and each of the folding parts comprises a connecting frame (4) and a rotating frame (5), wherein one end of the connecting frame (4) is fixedly connected to the fixed frame (3), the other end of the connecting frame (4) is rotatably connected to one end of the rotating frame (5), and the other end of the rotating frame (5) is fixedly connected to the backrest (2).

2. The curved back folding floor chair according to claim 1, characterized in that: The fixing frame (3) comprises two first rods (31) and two second rods (32), the two first rods (31) being symmetrically arranged at the bottom of the seat cushion (1) at the end positions on both sides relative to the human body after sitting, and the two second rods (32) being fixed between the two first rods (31) in a vertical manner.

3. The curved back folding floor chair according to claim 2, characterized in that: The connecting frame (4) comprises two symmetrically arranged L-shaped connecting pieces (41) and a connecting plate (42) connected to the corresponding sides of the two L-shaped connecting pieces (41); a receiving groove (43) is formed between the two L-shaped connecting pieces (41) and the connecting plate (42); one end of the two first rod bodies (31) is embedded in the receiving groove and fixedly connected to the connecting frame (4); the bottom of the rotating frame (5) is embedded in the receiving groove; the two L-shaped connecting pieces are symmetrically provided with rotating holes (411) and limiting holes (412); a rotating member is provided at the bottom of the rotating frame (5); the rotating member comprises a rotating shaft (53) and a movable shaft (54); the rotating shaft (53) is rotatably connected to the rotating hole (411) and passes through the rotating frame (5); the movable shaft (54) is slidably connected to the limiting hole (412) and passes through the rotating frame (5).

4. The curved back folding floor chair according to claim 3, characterized in that: The rotating frame (5) comprises two symmetrically arranged L-shaped rotating pieces (51) and a rotating plate (52) connected to the corresponding sides of the two L-shaped rotating pieces (51). The two rotating pieces (51) are symmetrically provided with two pairs of shaft holes at the bottom extension parts of the two L-shaped rotating pieces (51). The two pairs of shaft holes are equidistant from the bottom edges of the L-shaped rotating pieces. The rotating shaft (53) and the movable shaft (54) are respectively embedded in the two pairs of shaft holes of the two L-shaped rotating pieces.

5. The curved back folding floor chair according to claim 4, characterized in that: The rotating hole (411) is circular, and the size of the rotating hole (411) is adapted to the cross section of the rotating shaft (53). The limiting hole (412) is arc-shaped, and the arc-shaped limiting hole (412) limits the movable shaft (54), controls the rotation angle of the rotating shaft, and realizes the folding of the backrest (2) relative to the seat cushion (1).

6. The curved back folding floor chair according to claim 1, characterized in that: The seat cushion (1) is provided with a carrying portion for carrying, the carrying portion comprising a shoulder strap (7), the shoulder strap (7) being fixed to the rear side of the fixing frame (3), the shoulder strap (7) being provided with a widening band (71), and the widening band (71) being slidable on the shoulder strap (7).

7. The curved back folding floor chair according to claim 6, characterized in that: The carrying portion comprises a hand strap (8), the hand strap (8) being arranged at a side end of the fixing frame (3), and an anti-slip sleeve being sleeved on the hand strap (8).

8. A curved back folding floor chair according to any one of claims 1 to 7, characterized in that: The backrest (2) is provided with a binding strap (9), and the binding strap (9) is fixed to the bottom of the seat cushion (1) by providing an adhesive portion.

9. The curved back folding floor chair according to claim 8, characterized in that: The adhesive portion is a Velcro, and the Velcro comprises a sub-tie (91) and a main-tie (11), the sub-tie (91) being arranged on the binding strap (9), and the main-tie (11) being arranged at the bottom of the seat cushion (1).

10. A curved back folding floor chair according to any one of claims 1 to 7, characterized in that: The fixing frame (3) is provided with a mounting tube (33) at the lower side of the seat cushion (1), and a limiting column (6) is movably installed on the mounting tube (33). The limiting column (6) is in a U-shape, and its side end is laterally rotated on the mounting tube (33). A limiting block (61) is provided at the opening of the limiting column (6), and the width of the limiting block (61) is greater than the inner diameter of the mounting tube (33).

Images