Search

CN-121993487-A - Table top hinge structure and folding desk

CN121993487ACN 121993487 ACN121993487 ACN 121993487ACN-121993487-A

Abstract

The invention provides a tabletop hinge structure and a folding desk, which comprise a hinge plate, a hinge shaft, an L-shaped swing plate, a magnet, a vertical rod and a limiting boss, wherein the hinge plate is fixedly arranged on the side wall of the hinge plate, the limiting boss is formed in the side wall of the hinge plate, the hinge plate is hinged with a hinge piece through a first hinge shaft, the cross rod of the L-shaped swing plate is hinged with the hinge piece through a second hinge shaft, the magnet is fixedly arranged on the hinge piece and corresponds to the limiting boss, the vertical rod of the L-shaped swing plate is positioned between the magnet and the limiting boss corresponds to the limiting groove, and the upper end face of the limiting boss is an inclined face. Compared with the traditional plug-in limiting hinge structure, the invention has the advantages that when the hinge plate needs to be rotated, only the clockwise small-angle rotation of the hinge plate is needed, then the anticlockwise large-angle rotation of the hinge plate can be completed, and the limiting boss automatically resets to realize the limiting effect during the unfolding, so that the operation is more convenient.

Inventors

  • CHEN LIANXIN

Assignees

  • 浙江伟泰装潢家具有限公司

Dates

Publication Date
20260508
Application Date
20260212

Claims (10)

  1. 1. A tabletop hinge structure is characterized by comprising: The hinge plate (606) is fixedly arranged on the side wall of the hinge plate (6), and a limit groove (605) is formed in the side wall of the hinge plate (6); The hinge shaft, the said hinge plate (6) is articulated with the hinge piece (7) through the first hinge shaft (9); The L-shaped swinging plate (8), a cross rod (804) of the L-shaped swinging plate (8) is hinged with a hinge piece (7) through a second hinge shaft (802), a magnet (701) corresponding to the limit groove (605) is fixedly arranged on the hinge piece (7), a vertical rod (805) of the L-shaped swinging plate (8) is positioned between the magnet (701) and the limit groove (605), a limit boss (803) corresponding to the limit groove (605) is fixedly arranged on the vertical rod (805), and the upper end face of the limit boss (803) is an inclined face.
  2. 2. The desktop hinge structure according to claim 1, characterized in that the lower end surface of the limit groove (605) is a plane, the upper end surface of the limit groove (605) is an inclined surface, and the lower end surface of the first limit boss (803) is a plane; A second hinge hole is formed in the joint of the cross rod (804) and the vertical rod (805) of the L-shaped swing plate (8), a second hinge shaft (802) penetrates through the second hinge hole and a third hinge hole (706) of the hinge piece (7), and the L-shaped swing plate (8) is hinged with the hinge piece (7) through the second hinge shaft (802); the hinge plate (6) is provided with a first hinge hole (601), the hinge piece (7) is provided with a fourth hinge hole (702) corresponding to the first hinge hole (601), and the first hinge shaft (9) penetrates through the first hinge hole (601) and the fourth hinge hole (702).
  3. 3. The desktop hinge structure according to claim 1, characterized in that a mounting plate (806) is fixedly arranged on the lower end surface of one end of the cross rod (804) far away from the vertical rod (805), and a balancing weight (801) is arranged on the mounting plate (806); The upper end of the balancing weight (801) is hinged with the mounting plate (806) through a third hinge shaft.
  4. 4. A tabletop hinge structure according to claim 1, characterized in that when one end of the hinge plate (6) far away from the magnet (701) rotates downwards, the edge of the lower end of the hinge plate (6) far away from the magnet (701) drives the L-shaped swinging plate (8) to rotate along the second hinge shaft (802).
  5. 5. A folding desk is characterized by comprising: The desktop (1), the said desktop (1) is fixedly connected with hinge plate (606) of the hinge structure of the desktop (1); The base is connected with a hinge piece (7) of the hinge structure of the tabletop (1); the table top (1) hinge structure is the table top (1) hinge structure according to any one of claims 1-4.
  6. 6. The folding desk according to claim 5, wherein the base comprises two T-shaped frames (2), the vertical parts of the T-shaped frames (2) are upwards arranged, and the adjusting tube (4) is movably connected to the inner sides of the vertical parts along the height direction; the first hinge shaft (9) is hinged with the adjusting pipe (4), a rotating hole (703) is formed in the lower end of the hinge piece (7), the adjusting column (1002) is rotationally connected to the inner side of the rotating hole (703), and the adjusting column (1002) is arranged in parallel with the first hinge shaft (9); The horizontal adjusting bolt (10) penetrates through the side wall of the adjusting pipe (4) and is in threaded connection with the adjusting column (1002), and the horizontal adjusting bolt (10) is vertically arranged with the adjusting pipe (4); The adjusting pipe (4) is provided with a strip-shaped hole (402) arranged along the length direction of the adjusting pipe (4), the adjusting bolt penetrates through the strip-shaped hole (402), one end, far away from the bolt head, of the adjusting bolt is provided with an annular groove, and a first limiting ring (1001) is arranged in the annular groove; The outer diameter of the first limiting ring (1001) is larger than the width of the strip-shaped hole (402); The heads of the first limiting ring (1001) and the horizontal adjusting bolt (10) are respectively attached to the two end faces of the adjusting pipe (4); The horizontal adjusting bolt (10) is provided with a limit threaded hole, and the axis of the limit threaded hole is perpendicular to the axis of the horizontal adjusting bolt (10); The limit bolt (1003) penetrates through the adjusting pipe (4) and is connected to the inner side of the limit threaded hole in a threaded mode.
  7. 7. The folding desk of claim 6, wherein an adjusting block (403) is fixedly arranged on the inner side of the lower end of the adjusting pipe (4), and a height adjusting bolt (11) penetrates through the horizontal part of the T-shaped frame (2) and is in threaded connection with the adjusting block (403); The height adjusting bolt (11) is characterized in that an annular limiting groove (605) is formed in the lower end of the height adjusting bolt, a second limiting ring (1101) is arranged on the inner side of the annular limiting groove (605), and the heads of the second limiting ring (1101) and the height adjusting bolt (11) are respectively attached to two end faces of the horizontal part of the T-shaped frame (2).
  8. 8. The folding desk of claim 5, further comprising: articulated rod (5), articulated rod (5) and desktop (1) parallel arrangement, articulated rod (5) one end is articulated with articulated disc (6) through articulated post (504), and articulated rod (5) are close to articulated post (504) one end set firmly with articulated rod (5) perpendicular actuating lever (502) that set up, actuating lever (502) lower extreme is articulated with the one end of gag lever post (503), gag lever post (503) level sets up, articulated piece (7) are last to have set firmly limiting plate (705) corresponding with gag lever post (503), open on limiting plate (705) have spacing hole (704) corresponding with gag lever post (503), gag lever post (503) are located the inboard of spacing hole (704).
  9. 9. The folding desk of claim 8, wherein the hinge plate (6) is fixedly provided with a guide plate (603) corresponding to the limiting rod (503), the guide plate (603) is provided with a strip-shaped guide hole (604) corresponding to the limiting rod (503), and the limiting rod (503) penetrates through the strip-shaped guide hole (604) and is positioned at the inner side of the limiting hole (704); The hinge post (504) is a polygon prism, a polygon hole matched with the polygon prism is formed in the hinge rod (5), a round hole (602) corresponding to the polygon prism is formed in the hinge plate (6), and the polygon prism penetrates through the polygon hole and is connected to the inner side of the round hole (602) in a rotating mode; the number of the hinging structures of the table tops (1) is two, each hinging structure of the table tops (1) is correspondingly provided with one hinging rod (5), and the polygon prism penetrates through polygonal holes of the two hinging rods (5); a compression spring (501) is arranged between one end of the hinging rod (5) far away from the hinging column (504) and the tabletop (1).
  10. 10. The folding desk of claim 6, wherein: the number of the adjusting pipes (4) is two, and one adjusting pipe (4) is arranged on the inner side of each vertical part; the outer sides of the two ends of the horizontal part of the T-shaped frame (2) are provided with anti-skid rubber sleeves (201); The vertical parts of the two T-shaped frames (2) are fixedly connected through a first transverse brace (202); the two adjusting pipes (4) are fixedly connected through a second transverse brace (401); The upper end of the adjusting pipe (4) is bent to one side, a table bucket (3) is fixedly arranged at the lower end of the table top (1), and the opening direction of the table bucket (3) is the same as the bending direction of the upper end of the adjusting pipe (4); the bottom plate of the table bucket (3) is fixedly provided with a strip-shaped boss close to the opening of the table bucket (3), and the outer side wall of the table bucket (3) is fixedly provided with a reinforcing rib; one end of the upper end surface of the tabletop (1) far away from the opening of the table bucket (3) and the side surface are fixedly provided with U-shaped bosses (101); A U-shaped frame is fixedly arranged on the lower end face of the tabletop (1), and the vertical rod (805) of the U-shaped frame is fixedly connected with the hinge plate (606).

Description

Table top hinge structure and folding desk Technical Field The invention belongs to the technical field of education equipment, and particularly relates to a tabletop hinge structure and a folding desk. Background The desk is an important article for students to take lessons, in order to facilitate the rest of the students, a part of the desk is designed into a structure with a foldable desktop, when in noon break, the students in front row can obtain more lying space by rotating the desktop, the current desktop hinge structure is limited by the hinge plates in the hinge structure through the plug-in limiting pins, the operation process is complex, the use is inconvenient, and after one end of the desktop is used, the desk can be inclined and cannot be normally used, so that the service life is limited, the desktop is required to be disassembled for maintenance, the base is adjusted, and the maintenance process is complex. Disclosure of Invention In view of the foregoing, the present invention is directed to a desktop hinge structure and a folding desk, so as to solve at least one of the above technical problems. In order to achieve the above purpose, the technical scheme of the invention is realized as follows: the first aspect of the present invention provides a tabletop hinge structure, comprising: The hinge plate is fixedly arranged on the side wall of the hinge plate, and a limit groove is formed in the side wall of the hinge plate; a hinge shaft, the hinge plate being hinged with the hinge member through a first hinge shaft; The horizontal pole of L shape swing board is articulated with the articulated elements through the second articulated shaft, has set firmly the magnet corresponding with the spacing groove on the articulated elements, the montant of L shape swing board is located between magnet and the spacing groove, set firmly the spacing boss corresponding with the spacing groove on the montant, the up end of spacing boss is the inclined plane. Further, the lower end face of the limiting groove is a plane, the upper end face of the limiting groove is an inclined face, and the lower end face of the first limiting boss is a plane; The joint of the cross rod and the vertical rod of the L-shaped swinging plate is provided with a second hinge hole, a second hinge shaft penetrates through the second hinge hole and a third hinge hole of the hinge piece, and the L-shaped swinging plate is hinged with the hinge piece through the second hinge shaft; the hinge plate is provided with a first hinge hole, the hinge piece is provided with a fourth hinge hole corresponding to the first hinge hole, and the first hinge shaft penetrates through the first hinge hole and the fourth hinge hole. Further, a mounting plate is fixedly arranged on the lower end face of one end, far away from the vertical rod, of the cross rod, and a balancing weight is arranged on the mounting plate; The upper end of the balancing weight is hinged with the mounting plate through a third hinge shaft. Further, when one end of the hinge plate far away from the magnet rotates downwards, the edge of the lower end of the hinge plate far away from the magnet drives the L-shaped swing plate to rotate along the second hinge shaft. A second aspect of the present invention provides a folding desk comprising: The desktop is fixedly connected with the hinged plates of the desktop hinge structure; The base is connected with the hinge piece of the tabletop hinge structure; the tabletop hinge structure is the tabletop hinge structure according to the first aspect. Further, the base comprises two T-shaped frames, the vertical parts of the T-shaped frames are upwards arranged, and the adjusting pipe is movably connected to the inner sides of the vertical parts along the height direction; the first hinge shaft is hinged with the adjusting pipe, a rotating hole is formed in the lower end of the hinge piece, the adjusting column is rotationally connected to the inner side of the rotating hole, and the adjusting column is arranged in parallel with the first hinge shaft; the horizontal adjusting bolt penetrates through the side wall of the adjusting pipe and is in threaded connection with the adjusting column, and the horizontal adjusting bolt is vertically arranged with the adjusting pipe; The adjusting pipe is provided with a strip-shaped hole arranged along the length direction of the adjusting pipe, the adjusting bolt penetrates through the strip-shaped hole, one end, far away from the bolt head, of the adjusting bolt is provided with an annular groove, and a first limiting ring is arranged in the annular groove; the outer diameter of the first limiting ring is larger than the width of the strip-shaped hole; the heads of the first limiting ring and the horizontal adjusting bolt are respectively attached to the two end faces of the adjusting pipe; The horizontal adjusting bolt is provided with a limiting threaded hole, and the axis of the limiting threaded