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CN-224207033-U - Portable folding chair

CN224207033UCN 224207033 UCN224207033 UCN 224207033UCN-224207033-U

Abstract

The utility model provides a portable folding chair, which comprises a seat, a backrest and leg pads, wherein the backrest and the leg pads are respectively hinged to two sides of the seat, the turnover angle of the leg pads relative to the seat is adjusted through a first supporting structure, the height of the seat is adjusted through a second supporting structure, and the folding chair is matched with a plug-in rod and a plug-in hole, when the folding chair is needed, the leg pads can be unfolded, the height of the chair is increased, the backrest is adjusted to a proper position, when the folding chair is not needed, the leg pads can be folded below the chair, the height of the chair is reduced, the backrest can be folded above the chair, and further the folding chair is convenient to move or carry.

Inventors

  • HAN XUANYU
  • HAN ZONGMING

Assignees

  • 佛山市鑫诺尔医疗器械有限公司

Dates

Publication Date
20260508
Application Date
20250409

Claims (10)

  1. 1. The portable folding chair is characterized by comprising a seat (1), a backrest (2) and a leg pad (3), wherein the backrest (2) and the leg pad (3) are hinged to two sides of the seat (1) respectively, a first supporting structure (4) is arranged between the seat (1) and the leg pad (3), the first supporting structure (4) is used for adjusting the turnover angle of the leg pad (3) relative to the seat (1), a second supporting structure (5) is arranged at the bottom of the seat (1), the second supporting structure (5) is used for adjusting the height of the seat (1), a plurality of inserting holes (21) are formed in the backrest (2), the inserting holes (21) are distributed around the hinging points of the seat (1) and the backrest (2), and telescopic inserting rods (11) are arranged in the inserting holes (21) to be inserted into different inserting holes to fix the turnover angle between the seat (1) and the backrest (2).
  2. 2. The portable folding chair as claimed in claim 1, wherein the seat (1) is provided with a first sleeve (12), the first sleeve (12) is provided with a first through hole (121) through which the plug rod (11) can pass, a first limit step (122) is arranged in the first through hole (121), the plug rod (11) is provided with a first limit baffle (111), a first spring (13) is arranged between the first limit step (122) and the first limit baffle (111), and the first spring (13) is used for driving the plug rod (11) to be inserted into the plug hole (21).
  3. 3. The portable folding chair as claimed in claim 2, wherein the first sleeve (12) is provided with a first notch (123), the insertion rod (11) is provided with a handle (124) extending along the radial direction, the extending length of the handle (124) is larger than the diameter of the first sleeve (12), and the first notch (123) is used for allowing the handle (124) to be inserted when the insertion rod (11) is inserted into the insertion hole (21).
  4. 4. The portable folding chair as claimed in claim 3, wherein the end surface of the first sleeve (12) is provided with a limit groove (125), and the limit groove (125) is used for accommodating the handle (124) to limit the rotation of the handle (124).
  5. 5. A portable folding chair according to claim 2, characterized in that the first sleeve (12) is screwed with the seat (1).
  6. 6. The portable folding chair according to claim 1, characterized in that armrests (14) are rotatably connected to both sides of the chair (1), the armrests (14) being rotatable for adjusting the position on the chair (1).
  7. 7. The portable folding chair of claim 6, wherein the chair (1) is provided with a second sleeve (15), the second sleeve (15) is provided with a second through hole (151) through which the inserting rod (11) can pass, a second limit step (152) is arranged in the second through hole (151), the handrail (14) is provided with a cross rod (141) and a vertical rod (142), the cross rod (141) is vertically connected with the vertical rod (142), the cross rod (141) is provided with a second limit baffle (143), a second spring (16) is arranged between the second limit step (152) and the second limit baffle (143), the second sleeve (15) is provided with a second notch (153), and the second spring (16) is used for driving the vertical rod (142) to be inserted into the second notch (153).
  8. 8. The portable folding chair as claimed in claim 7, wherein two second notches (153) are provided, and the two second notches (153) are symmetrically arranged and located on the same vertical plane.
  9. 9. The portable folding chair according to claim 1, characterized in that the first support structure (4) comprises a first support frame (41) and a first fastening member (42), one side of the first support frame (41) being hinged to the seat (1) and the other side being detachably connected to the leg pad (3) by means of the first fastening member (42).
  10. 10. The portable folding chair according to claim 1, characterized in that the second support structure (5) comprises a base (51), a second support frame (52) and a second fastening member (53), one side of the second support frame (52) being hinged to the base (51) and the other side being detachably connected to the seat (1) by means of the second fastening member (53).

Description

Portable folding chair Technical Field The utility model relates to the technical field of seats, in particular to a portable folding chair. Background When a dental patient performs oral treatment or examination, the patient needs to sit on a dental chair or lie on the dental chair half on the back to facilitate the doctor to perform oral examination and treatment, and the doctor needs to frequently adjust the head, the height of the body and the pitching angle of the head of the patient according to the needs of examination and treatment and the different heights of the patient so as to achieve the optimal height and angle of the oral cavity required by treatment, and simultaneously, the patient can be in a more comfortable posture. This requires a dental chair that can be easily adjusted for the head and body position of the patient. In practical use, the dental chair itself occupies a large space, and is inconvenient to carry or carry when a doctor performs external diagnosis and treatment. Disclosure of utility model Accordingly, the present utility model is directed to a portable folding chair, which aims to solve the problems of the prior art that the dental chair occupies a large space and is inconvenient to be moved or carried when a doctor performs external diagnosis and treatment. The utility model provides a portable folding chair, which comprises a seat, a backrest and leg pads, wherein the backrest and the leg pads are respectively hinged to two sides of the seat, a first supporting structure is arranged between the seat and the leg pads and is used for adjusting the overturning angle of the leg pads relative to the seat, a second supporting structure is arranged at the bottom of the seat and is used for adjusting the height of the seat, a plurality of inserting holes are formed in the backrest, the inserting holes are distributed around the hinging points of the seat and the backrest, the seat is provided with telescopic inserting rods, and the inserting rods are used for being inserted into the different inserting holes to fix the overturning angle between the seat and the backrest. Further, be equipped with first sleeve on the seat, first sleeve has seted up the confession the first through-hole that the peg graft pole passed, be equipped with first spacing step in the first through-hole, the peg graft pole is equipped with first limit baffle, first spacing step with be equipped with first spring between the first limit baffle, first spring is used for the drive the peg graft pole inserts in the spliced eye. Further, a first notch is formed in the first sleeve, a handle extending along the radial direction is arranged on the inserting connection rod, the extending length of the handle is larger than the diameter of the first sleeve, and the first notch is used for allowing the handle to be inserted when the inserting connection rod is inserted into the inserting connection hole. Further, a limiting groove is formed in the end face of the first sleeve, and the limiting groove is used for accommodating the handle to limit the handle to rotate. Further, the first sleeve is in threaded connection with the seat. Further, the two sides of the seat are rotatably connected with armrests, and the armrests can be rotated to adjust the position on the seat. Further, be equipped with the second sleeve on the seat, the second through-hole that can supply the peg graft pole passes is seted up to the second sleeve, be equipped with the spacing step of second in the second through-hole, be equipped with horizontal pole and montant on the handrail, the horizontal pole with the montant is connected perpendicularly, be equipped with the spacing baffle of second on the horizontal pole, the spacing step of second with be equipped with the second spring between the spacing baffle of second, the second breach has been seted up on the second sleeve, the second spring is used for the drive the montant inserts in the second breach. Further, two second gaps are arranged, and the two second gaps are symmetrically arranged and located on the same vertical plane. Further, the first support structure comprises a first support frame and a first fastening piece, one side of the first support frame is hinged to the seat, and the other side of the first support frame is detachably connected with the leg pad through the first fastening piece. Further, the second supporting structure comprises a base, a second supporting frame and a second fastening piece, one side of the second supporting frame is hinged to the base, and the other side of the second supporting frame is detachably connected with the seat through the second fastening piece. The portable folding chair has the beneficial effects that the portable folding chair comprises the seat, the backrest and the leg pads, wherein the backrest and the leg pads are respectively hinged to the two sides of the seat, the turnover angle of the leg pads relative to the seat is adju