Rotating structure and detachable hinge comprising same

Abstract

Disclosed in the present invention is a rotating structure and a detachable hinge comprising same. The rotating structure comprises an upper tube, a lower tube, an elastic piece, a core, two gaskets, and a plurality of balls, wherein mounting holes for assembling leaves are formed in the side surfaces of the upper tube and the lower tube in the length direction of the upper tube and the lower tube; the gaskets are respectively welded to two ends of the upper tube, and a recessed part is formed at the lower end of the upper tube; the upper part of the core is slightly smaller than the lower part of the core, and the lower part of the core can be sleeved into the lower tube; the elastic piece is sleeved on the core, so that the elastic piece cannot be separated from the lower part of the core; the upper part of the core penetrates through center holes of the two gaskets, so that a track is formed between the recessed part and the core; the plurality of balls are arranged in the track; and the gasket at the top end of the upper tube is welded and fixed to the core, and the elastic piece blocks the plurality of balls in the track. The rotating structure and the hinge comprising same can avoid the abrasion generated between the upper tube and the lower tube in use, and reduce the friction force of the elastic piece in use, so that the rotating structure and the hinge comprising same can meet higher use requirements.

Description

Rotating structure and detachable hinge containing the same Technical Field

[0001] The invention belongs to a detachable hinge and relates to the improvement of its rotating structure. Specifically, the invention provides a rotating structure suitable for cutting and welding to obtain precision and wear resistance, and a detachable hinge containing the structure.

[0002] Traditional detachable hinges generally include a main piece and a secondary piece made of metal. Usually, the main piece and the secondary piece are respectively curled with an upper and a lower tube, and a rotating shaft is fixed in the upper tube. The rotating shaft is sleeved into the hole in the lower tube. They can be assembled together so that the main piece can rotate relative to the secondary piece.

[0003] This type of hinge has a low manufacturing precision, and a large gap must be maintained between the lower tube and the rotating shaft for smooth rotation. However, the large gap between the lower tube and the rotating shaft can easily cause the door leaf to tilt, resulting in greater friction and noise during use. In addition, the weight of the door leaf also acts on the auxiliary leaf through the main leaf. In particular, during use, the lower tube of the auxiliary leaf bears almost the entire weight of the door leaf, causing the auxiliary leaf to be pulled, and it is also easy for it to deform and dislocate. Moreover, during the rotation process, the upper and lower tubes produce friction between them, which can easily cause wear on the upper and lower tubes, making it difficult to meet higher usage requirements.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to provide a rotating structure and a detachable hinge containing the structure. It proposes a rotating structure that is suitable for laser cutting and welding processing, with higher precision matching, reduces the friction generated during use, prevents self-deformation, and achieves smooth rotation, so that it can meet higher usage requirements.

[0006] The rotating structure of the present invention is realized by the following scheme:

[0007] A rotating structure includes an upper tube, a lower tube, a spring, a core, and two gaskets; the structure is characterized in that it also includes a plurality of ball bearings; wherein: the upper and lower tubes have mounting holes for the leaf plates to be assembled on the side surfaces along their length directions; a gasket is welded to each end of the upper tube, and a recess is formed at the lower end of the upper tube; the core is slightly smaller at the upper part than at the lower part, and the lower part of the core can be inserted into the lower tube; the spring is inserted into the core to prevent it from detaching from the lower part of the core; the upper part of the core passes through the center holes of the two gaskets, so that a track is formed between the recess and the core; a plurality of ball bearings are placed in the track; the gasket at the top end of the upper tube is welded to the core, so that the spring blocks the plurality of ball bearings in the track.

[0008] In this way, since the core is fixed to the gasket at the top of the upper tube, the spring sheet cannot detach from the lower part of the core, and the spring sheet blocks the ball, so the ball can only stay on the track and cannot escape. When the lower part of the core is inserted into the middle hole of the lower tube, the lower tube can slightly lift the spring sheet so that it contacts the ball, and there is a gap between the spring sheet and the core. When the upper tube is subjected to torsion, the ball rolls on the spring sheet to realize the rotation of the upper tube relative to the lower tube.

[0009] Secondly, during the rotation process, the upper tube does not directly contact the lower tube, but contacts the lower tube through the spring sheet. The ball rolls on the spring sheet, which can reduce friction. The spring sheet can be made of a material with better hardness. Therefore, the wear of the lower tube can be reduced, and it is beneficial to increase the service life of the detachable plate.

[0010] Furthermore, the upper tube is welded to the core through the gasket, so the upper tube itself is not easily affected and deformed, and the mounting holes of the upper tube are not easily misaligned, which is conducive to the assembly of the main plate without deformation.

[0011] The detachable hinge of the present invention is realized by the following scheme:

[0012] A detachable hinge includes a main leaf and a secondary leaf, and is characterized in that it also includes the above-mentioned rotating structure, the main leaf forms an upper pin on one side, and the secondary leaf forms a lower pin on one side, and the upper pin of the main leaf is inserted into the mounting hole of the upper tube and welded thereto, and the lower pin of the secondary leaf is inserted into the mounting hole of the lower tube and welded thereto.

[0013] In this way, the main sheet is fixed to the core through the upper tube, and the auxiliary sheet is also fixed to the lower tube, so that the main sheet can rotate in the middle hole of the lower tube following the core, realizing the rotation function of the hinge and having the above advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 is a schematic diagram of a specific embodiment of the detachable hinge of the present invention;

[0015] FIG2 is an exploded schematic diagram of the detachable hinge in FIG1 ;

[0016] FIG3 is an enlarged view of portion A of FIG1 . DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0018] 1 , 2 and 3 , the rotating structure 3 of the embodiment includes an upper tube 31 , a lower tube 32 , a core 33 , two gaskets 35 , a spring 36 and a plurality of balls 37 . The upper tube 31 and the lower tube 32 each have mounting holes 31 a and 32 a formed along their lengths on their sides for mounting the leaflets 31 . A gasket 35 is welded to each end of the upper tube 31 , and a recess 31 b is formed at the lower end of the upper tube 31 . The upper portion of the core 33 is slightly smaller than the lower portion, and the lower portion of the core 33 can be inserted into the center hole of the lower tube 32 . The spring 36 is inserted from top to bottom onto the core 33 to prevent it from detaching from the lower portion of the core 33 . The upper portion of the core 33 passes through the center holes of the two gaskets 35 , forming a track between the recess 31 b and the core 33 . The track contains a plurality of balls 37 . The gasket 35 at the top of the upper tube is welded to the core 33 , allowing the spring 36 to block the plurality of balls 37 in the track.

[0019] 1 , 2 and 3 , a detachable hinge according to a specific embodiment includes a main sheet 1, a secondary sheet 2 and a rotating structure 3. The main sheet 1 has an upper pin 11 formed on one side, and the secondary sheet 2 has a lower pin 21 formed on one side. The upper pin 11 of the main sheet 1 can be inserted into the mounting hole 31 a and fixed together by laser welding, and the lower pin 21 of the secondary sheet 2 can be inserted into the mounting hole 32 a and fixed together by laser welding. In this way, the main sheet 1 can be inserted into the lower tube 32 through the core 33 and assembled with the secondary sheet 2 to realize the function of a hinge.

Claims

1. A rotating structure comprising an upper tube, a lower tube, a spring, a core and two washers; characterized in that: It also includes a number of ball bearings; among them: the upper and lower tubes have mounting holes for leaf assembly on the side along their own length direction; the upper tube is welded with gaskets at both ends, and a recessed portion is formed at the lower end of the upper tube; the core is slightly smaller at the upper part than the lower part, and the lower part of the core can be inserted into the lower tube; the spring piece is sleeved on the core to prevent it from detaching from the lower part of the core; the center holes of the two gaskets are passed through the upper part of the core to form a track between the recessed portion and the core; a number of ball bearings are placed in the track; the gasket at the top end of the upper tube is welded and fixed to the core, so that the spring piece blocks the number of ball bearings in the track.

2. A detachable hinge comprising a main leaf and a secondary leaf, characterized in that: It also includes the rotating structure of claim 1, wherein the main plate forms an upper pin on one side, and the auxiliary plate forms a lower pin on one side, and the upper pin of the main plate is inserted into the mounting hole of the upper tube and welded thereto, and the lower pin of the auxiliary plate is inserted into the mounting hole of the lower tube and welded thereto.

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