초록 ▼

A portable folding chair suitable for travel and leisure can be used, e.g., in households, outdoors, and in a garden. The folding chair includes a chair support frame, a surface fabric, a backrest, arms, and shoes. The chair support frame includes seating frame tubes, back-rest tubes, arm front supp

A portable folding chair suitable for travel and leisure can be used, e.g., in households, outdoors, and in a garden. The folding chair includes a chair support frame, a surface fabric, a backrest, arms, and shoes. The chair support frame includes seating frame tubes, back-rest tubes, arm front support tubes, front support legs, front cross tubes, rear support legs, connection sliding blocks, locking sliding blocks, arm sliding blocks, rear cross tubes, locking fixtures, fixing elements, sliding locating blocks, rotating support blocks, and U-shaped hinging pieces. The front and rear support legs form an inverted V-shaped support structure when unfolded, and are drawn in when folded, because the chair is connected by cross tubes and inverted V-shaped support legs.

대표청구항 ▼

1. A portable folding chair, comprising:a chair support frame, a surface fabric, a backrest, arms, and shoes, wherein said chair support frame includes seating frame tubes, back-rest tubes, arm front support tubes, front support legs, front cross tubes, rear support legs, connection sliding blocks,

1. A portable folding chair, comprising:a chair support frame, a surface fabric, a backrest, arms, and shoes, wherein said chair support frame includes seating frame tubes, back-rest tubes, arm front support tubes, front support legs, front cross tubes, rear support legs, connection sliding blocks, locking sliding blocks, arm sliding blocks, rear cross tubes, locking fixtures, fixing elements, sliding locating blocks, rotating support blocks, and U-shaped hinging pieces, said rear support legs are connected to said front support legs via said rotating support blocks, each of said seating frame tubes and each of said back-rest tubes are connected to one of said rear support legs via one of said connection sliding blocks and can slide freely along said rear support legs, a middle portion of each of said seating frame tubes is connected to a middle portion of one of said front support legs, an upper end of each of said front cross tubes is connected to one of said fixing elements of each of said seating frame tubes via one of said U-shaped hinging pieces, and a lower end of each of said front cross tubes is connected to one of said locking fixtures on one of said front support legs via one of said U-shaped hinging pieces, an upper end of each of said rear cross tubes is fixed to one of said sliding locating blocks on one of said back-rest tubes via one of said U-shaped hinging pieces, and a lower end of each of said rear cross tubes is connected to one of said rear support legs via one of said U-shaped hinging pieces, a lower end of each of said arm front support tubes is connected to one of said locking sliding blocks sleeved on one of said front support legs, a middle portion of each of said arm front support tubes is connected to one of said fixing elements, and a front end of each of said arms is connected to an upper end of one of said arm front support tubes, and a rear end of each of said arms is connected to an upper portion of one of said front support legs via one of said arm sliding blocks slidably mounted in a sliding groove located under each of said arms. 2. A portable folding chair according to claim 1, wherein said surface fabric is fixed to said chair support frame through said seating frame tubes and said back-rest tubes.3. A portable folding chair according to claim 1, wherein each of said front support legs and each of said rear support legs are equipped with shoes, and wherein said shoes are plastic shoes.4. A portable folding chair according to claim 1, wherein said front support legs and said rear support legs form an inverted V-shaped support structure when unfolded, and said front support legs and said rear support legs are drawn in when folded, and wherein the entire chair is connected by cross tubes and inverted V-shaped support legs.5. A portable folding chair according to claim 1, wherein each of said locking sliding blocks is provided with a sliding hole sleeved on the front support leg, at a perimeter of said sliding hole is provided two wings extending in parallel along a radial direction of said sliding hole, the two wings being symmetrically disposed with pivoting holes, and two recesses are correspondingly disposed at a lower edge of each of said locking sliding blocks.6. A portable folding chair according to claim 1, wherein each of said locking fixtures is provided with a hole sleeved and fixed to one of said front support legs, and two protrusions extending in parallel with an axial direction of said hole are provided at two sides of the top of said hole.7. A portable folding chair according to claim 1, wherein each of said connection sliding blocks is disposed with a sliding hole, at one end of a perimeter of each sliding hole is provided two parallel protrusions extending along a radial direction of said sliding hole, each of said protrusions being correspondingly disposed with pivoting holes, and at the other end of the perimeter of each sliding hole is provided two parallel wings extending along the radial direction of said sliding hole, each of said wings being symmetrically disposed with another pivoting hole, and wherein each of said seating frame tubes and said back-rest tubes are respectively connected to said pivoting holes of each of said connection sliding blocks.8. A portable folding chair according to claim 1, wherein a middle portion of each of said sliding locating blocks is provided with a sliding hole, each sliding hole being sleeved on one of said back-rest tubes and being freely slidable up and down one of said back-rest tubes, at one end of each of said sliding locating blocks is provided two parallel wings extending along a radial direction of each sliding hole, each of said two wings being symmetrically provided with pivoting holes, and at the other end of each of said sliding locating blocks is provided an extending wing extending along said radial direction of each sliding hole, said extending wing being disposed with another pivoting hole.