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CN-122004628-A - Folding joint and child bed

CN122004628ACN 122004628 ACN122004628 ACN 122004628ACN-122004628-A

Abstract

A folding joint for children is composed of a joint seat, the first and the second supporting frames pivoted to the upper part of joint seat, and the first and the second enclosing frames pivoted to the lower part of joint seat. The folding joint changes a single pivot folding mode, has reasonable movement track of the components, small volume after folding and high space utilization rate. The folding joint is arranged on the matched crib, the head frame, the tail frame and the support are linked, the front and rear bottom plate frames pivoted by multiple shafts are matched to realize the integral synchronous folding and unfolding of the crib body, the operation is convenient and fast, the unfolding stabilizing mechanism is arranged, the false folding and folding of the crib body after the unfolding of the crib body is avoided, the structural stability and the use safety are improved, and the support structure after the unfolding is more stable.

Inventors

  • YANG PINGYUAN
  • HU KOUZHEN
  • TAN YEPENG

Assignees

  • 苏州迎贝儿童用品有限公司

Dates

Publication Date
20260512
Application Date
20260214

Claims (10)

  1. 1. The folding joint is characterized by comprising a joint seat (1), a first supporting frame (2 a) and a second supporting frame (2 b) with upper ends respectively pivoted with the upper part of the joint seat (1), a first enclosing frame (3 a) and a second enclosing frame (3 b) with one end respectively pivoted with the lower part of the joint seat (1), wherein a first driving groove (31) is formed in the first enclosing frame (3 a), a second driving groove (32) is formed in the second enclosing frame (3 b), The first support (2 a) is provided with a first pin (D1) inserted in the first driving groove (31), the second support (2 b) is provided with a second pin (D2) inserted in the second driving groove (32), When the first support frame (2 a) and the second support frame (2 b) are folded or unfolded relatively based on the joint seat (1), the first pin (D1) is arranged in the first driving groove (31) in a rotating and sliding mode, and the second pin (D2) is arranged in the second driving groove (32) in a rotating and sliding mode, so that the first enclosing frame (3 a) and the second enclosing frame (3 b) are folded or unfolded relatively based on the joint seat (1).
  2. 2. The folding joint according to claim 1, wherein the first driving groove (31) comprises a first straight groove section (311) and a first avoiding section (312), a center line of the first straight groove section (311) is tangent to a circle taking a rotation axis of the first enclosing frame (3 a) as a circle center, the second driving groove (32) comprises a second straight groove section (321) and a second avoiding section (322), the center line of the second straight groove section (321) is tangent to the circle taking the rotation axis of the second enclosing frame (3 b) as the circle center, and when the first supporting frame (2 a) and the second supporting frame (2 b) are relatively folded based on the joint seat (1), the first pin (D1) moves from the first straight groove section (311) to the first avoiding section (312), and the second pin (D2) moves from the second straight groove section (321) to the second avoiding section (322).
  3. 3. The folding joint as claimed in claim 2, wherein a first guide groove (11) and a second guide groove (12) are formed on both sides of the joint seat (1), a center line of the first guide groove (11) is consistent with or parallel to a circumferential line taking a rotation axis of the first support (2 a) as a circle center, a center line of the second guide groove (12) is consistent with or parallel to a circumferential line taking a rotation axis of the second support (2 b) as a circle center, the first pin (D1) is inserted into the first guide groove (11), and the second pin (D2) is inserted into the second guide groove (12).
  4. 4. The folding joint according to claim 2, wherein the upper end of the first bracket (2 a) and the upper end of the second bracket (2 b) are coaxially pivoted to the upper portion of the joint base (1) via a first shaft (X1), and the one end of the first enclosure (3 a) and the one end of the second enclosure (3 b) are coaxially pivoted to the lower portion of the joint base (1) via a second shaft (X2).
  5. 5. The folding joint as claimed in claim 4, characterized in that, when the first support (2 a) and the second support (2 b) are unfolded relatively on the basis of the joint seat (1), the centre line of the first straight slot section (311) is parallel or coincident with the centre line of the second straight slot section (321) and is perpendicular to the line connecting the first axis (X1) and the second axis (X2).
  6. 6. The folding joint according to claim 1, wherein the first support (2 a) and the second support (2 b), and the first enclosure (3 a) and the second enclosure (3 b) are symmetrically arranged at two side parts of the joint seat (1), respectively.
  7. 7. The folding joint according to claim 1, wherein an angle limiting mechanism (4) for limiting the expansion to a limit position is arranged between the first support (2 a) and the second support (2 b) or between the first support (2 a) and the second support (2 b) and the joint seat (1).
  8. 8. The folding joint as claimed in claim 1, wherein the joint seat (1) comprises a metal reinforcing sheet (13), the upper end of the first support (2 a) and the upper end of the second support (2 b) are respectively pivoted with the upper part of the reinforcing sheet (13), and one end of the first enclosure (3 a) and one end of the second enclosure (3 b) are respectively pivoted with the lower part of the reinforcing sheet (13).
  9. 9. A child's bed comprising the folding joint according to any one of claims 1-8, wherein the folding joint comprises two folding joints, the two folding joints are respectively located at the left side and the right side of the child's bed, a bed frame (5 a) is fixed between the two first enclosing frames (3 a), a bed tail frame (5 b) is fixed between the two second enclosing frames (3 b), a front support (6 a) extending downwards is fixed on the two first support frames (2 a), a rear support (6 b) extending downwards is fixed on the two second support frames (2 b), the child's bed further comprises a front bottom plate frame (7 a) pivotally connected with the front support (6 a) through a third shaft (X3), a rear bottom plate frame (7 b) pivotally connected with the rear support frame (6 b) through a fourth shaft (X4), the front bottom plate frame (7 a) is connected with the rear bottom plate frame (7 b) through a fifth shaft (X5), and the child's bed further comprises a stabilizing mechanism (8).
  10. 10. Child's bed according to claim 9, characterized in that the unfolding stabilizing means (8) are arranged at the pivot connection of the fifth axis (X5) and comprise an unlocking member, when the user lifts the unlocking member upwards, the front floor frame (7 a) and the rear floor frame (7 b) are folded upwards, and the first support frame (2 a) and the second support frame (2 b) are caused to be folded relatively.

Description

Folding joint and child bed Technical Field The invention belongs to the technical field of children supplies, and particularly relates to a folding joint and a child bed. Background The children's bed is a necessary article for child care, but because of the large volume, most children's beds are designed as foldable children's beds so as to be convenient for carrying and collection. Along with the high-speed development of market, current children articles for use technical field, the user has not only satisfied that the crib has basic folding and safeguard function, and the user is to the demand of folding bed's simple operation nature, structural stability, space utilization etc. promote increasingly. In the prior art, various foldable child beds and supporting folding joint structures exist, such as a supporting joint device disclosed in patent with an authorized bulletin number of CN114052436B, a four-bar mechanism is formed by matching with a supporting rod through pivoting of folding joints to realize folding, and the bed body is driven to fold synchronously, but the folding of the bed body is realized by mostly relying on a single pivoting folding mode, the matching design of a surrounding frame and a supporting frame is single, the movement track of each part in the folding process is limited, the whole volume after folding is still larger, the structural stability after unfolding is also dependent on friction limit of an elastic boss, and the problem of limit failure easily occurs after long-term use. Meanwhile, the prior foldable child bed has the defects that the bottom plate frame is integrated or simply hinged, the support stability of the unfolded bottom plate frame is not enough, and the folding bottom plate frame cannot be synchronously folded with the bed frame, so that the folding bottom plate frame needs to be operated independently, and the use complexity is increased. In addition, the partially folded child bed lacks a special unfolding stabilizing mechanism, is easy to fold by mistake due to external force after being unfolded, and has safety and reliability to be improved. Therefore, the folding joint and the child bed which have simple structure, portable operation, stable unfolding and smaller whole volume after folding are designed to meet market demands. Disclosure of Invention The invention aims to provide a folding joint. In order to solve the technical problems, the foldable joint comprises a joint seat, a first support and a second support, wherein the upper end of the first support and the upper end of the second support are respectively pivoted with the upper part of the joint seat, a first enclosing frame and a second enclosing frame, the upper end of the first enclosing frame is respectively pivoted with the lower part of the joint seat, a first driving groove is formed in the first enclosing frame, a second driving groove is formed in the second enclosing frame, a first pin inserted into the first driving groove is formed in the first support, a second pin inserted into the second driving groove is formed in the second support, and when the first support and the second support are folded or unfolded relatively based on the joint seat, the first pin is arranged in the first driving groove in a rotating and sliding mode, and the second pin is arranged in the second driving groove in a rotating and sliding mode, so that the first enclosing frame and the second enclosing frame are folded or unfolded relatively based on the joint seat. In some embodiments, the first driving groove comprises a first straight groove section and a first avoiding section, the center line of the first straight groove section is tangent to a circle taking the first surrounding frame rotation shaft as a circle center, the second driving groove comprises a second straight groove section and a second avoiding section, the center line of the second straight groove section is tangent to the circle taking the second surrounding frame rotation shaft as the circle center, when the first supporting frame and the second supporting frame are folded relatively based on the joint seat, the first pin moves from the first straight groove section to the first avoiding section, and the second pin moves from the second straight groove section to the second avoiding section. In some embodiments, a first guide groove and a second guide groove are formed on two sides of the joint seat, the center line of the first guide groove is consistent with or parallel to a circumferential line taking the rotation axis of the first support frame as a center of a circle, the center line of the second guide groove is consistent with or parallel to a circumferential line taking the rotation axis of the second support frame as a center of a circle, the first pin is inserted in the first guide groove, and the second pin is inserted in the second guide groove. In some embodiments, the upper end of the first support and the upper end of