Hinge capable of stopping at will

Abstract

The utility model provides a free stop hinge, which comprises a first connecting arm, a second connecting arm and a pivot, both the first connecting arm and the second connecting arm are provided with pivoting holes for the pivot to rotate, and the pivot is also provided with an elastic piece, so that the first connecting arm and the second connecting arm are mutually pre-positioned through the elastic pre-tightening force of the elastic piece, a first copper sheet and a second copper sheet are arranged between the first connecting arm and the second connecting arm, a third copper sheet is arranged between the first connecting arm and the elastic piece, and a chip groove is formed in the wall face of the pivoting hole in the axial direction. When the first connecting arm and the second connecting arm rotate relatively, the first copper sheet, the second copper sheet and the third copper sheet rotate relative to the pivot under the friction force of the first connecting arm or the second connecting arm and rotate and rub relative to the pivot to generate copper cuttings, and the copper cuttings fall into the pivoting hole of the first connecting arm or the second connecting arm. And the copper cuttings can be hidden in the chip grooves or discharged through the chip grooves, so that the influence of the copper cuttings on the hinge is reduced.

Description

Technical Field

[0001] The utility model relates to the field of hinges, in particular to a hinge with a random stop function. Background Art

[0002] Hinges are widely used, and are commonly used in doors, windows and cabinets. Existing hinges can basically only realize the function of opening and closing doors, and cannot fix the door in a certain position according to the need for the door opening angle. In some special places, the door needs to be fixed and opened to different angles. Therefore, there is a need for directional hinges that can be suspended at any angle in the market.

[0003] On May 2, 2023, the applicant disclosed "A directional hinge structure that can hover at any angle" with announcement number "CN218953075U", which solved the above-mentioned problem to a certain extent. It installs the first copper sheet and the third copper sheet on both sides of the head end of the first connecting arm respectively, fully utilizing the characteristics of the copper sheet, reducing the contact between the two connecting arms and other components, and reducing wear while ensuring friction; in this structure, although the copper chips generated by the friction between the two connecting arms and the first copper sheet and the third copper sheet will fall into the chip collecting hole during the rotation to avoid affecting the normal operation of the hinge; but in actual use, the copper chips generated by the friction between the mounting pin as a rotating part and the first copper sheet or the third copper sheet cannot be discharged, causing the copper chips to enter between the mounting pin and the two connecting arms, resulting in greater rotational friction of the connecting arms, affecting the normal operation of the hinge. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides a free stop hinge, including a first connecting arm, a second connecting arm and a pivot, the first connecting arm and the second connecting arm are both provided with a pivot hole for the pivot to rotate, and an elastic member is also provided on the pivot, so that the first connecting arm and the second connecting arm are pre-positioned relative to each other by the elastic pre-tightening force of the elastic member, wherein a first copper sheet and a second copper sheet are provided between the first connecting arm and the second connecting arm, a third copper sheet is provided between the first connecting arm and the elastic member, the first copper sheet, the second copper sheet and the third copper sheet are arranged on the pivot, and the wall surface of the pivot hole is provided with a chip removal groove along the axial direction.

[0005] Furthermore, a plurality of chip removal grooves are provided and distributed on the wall surface of the pivot hole along the axis of the pivot hole.

[0006] Furthermore, the pivot includes a rotating part and a stop part, and the elastic member, the third copper sheet, the first connecting arm, the first copper sheet, the second copper sheet, and the second connecting arm are rotatably arranged on the rotating part in sequence, and the stop part is arranged on an end of the elastic member away from the first connecting arm, and an end of the rotating part away from the stop part is riveted to the second connecting arm.

[0007] Furthermore, the first copper sheet, the second copper sheet and the third copper sheet are provided with chip collecting holes.

[0008] Compared with the prior art, the beneficial effect of the utility model is that: by distributing a plurality of chip grooves along the axis of the pivot holes of the first connecting arm and the second connecting arm, when the first connecting arm and the second connecting arm rotate relatively to each other, the first copper sheet, the second copper sheet and the third copper sheet rotate relative to the pivot under the friction force of the first connecting arm or the second connecting arm, and generate copper chips due to the relative rotation friction on the pivot, and the copper chips fall into the pivot hole of the first connecting arm or the second connecting arm, and the copper chips can be hidden in the chip groove or discharged through the chip groove, thereby reducing the influence of the copper chips on the hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model in a closed state.

[0010] Figure 2 It is a cross-sectional schematic diagram of the utility model in a closed state.

[0011] Figure 3 It is a structural schematic diagram of the utility model in an opened state.

[0012] Figure 4 It is a schematic diagram of the explosion structure of the utility model.

[0013] In the figure: the first connecting arm 10, the pivot hole 101, the chip removal groove 102, the second connecting arm 20, the pivot hole 201, the chip removal groove 202, the pivot 30, the rotating part 301, the stop part 302, the elastic member 40, the first copper sheet 50, the chip collection hole 501, the third copper sheet 70, the chip collection hole 701. DETAILED DESCRIPTION

[0014] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0015] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0016] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0017] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0018] refer to Figures 1 to 4 A free-stop hinge includes a first connecting arm 10, a second connecting arm 20 and a pivot 30. The first connecting arm 10 and the second connecting arm 20 are both provided with pivot holes 101 and 201 for the pivot 30 to rotate. The pivot 30 is also provided with an elastic member 40 so that the first connecting arm 10 and the second connecting arm 20 are mutually pre-positioned by the elastic pre-tightening force of the elastic member 40.

[0019] Specifically, a first copper sheet 50 and a second copper sheet 60 are arranged between the first connecting arm 10 and the second connecting arm 20, and a third copper sheet 70 is arranged between the first connecting arm 10 and the elastic member 40. The first copper sheet 50, the second copper sheet 60 and the third copper sheet 70 are arranged on the pivot 30, making full use of the characteristics of the copper sheets to reduce the contact between the two connecting arms and other components, thereby reducing the wear between the two while ensuring the friction.

[0020] It should be understood that in this embodiment, four chip removal grooves 102, 202 are distributed along the axis of the wall of the pivot hole 101, 201, and the chip removal grooves 102, 202 are arranged along the axial direction of the pivot hole 101, 201 to facilitate the discharge of copper chips.

[0021] Specifically, the pivot 30 includes a rotating part 301 and a stop part 302. The elastic member 40, the third copper sheet 70, the first connecting arm 10, the first copper sheet 50, the second copper sheet 60, and the second connecting arm 20 are rotatably arranged on the rotating part 301 in sequence. The stop part 302 is arranged on the end of the elastic member 40 away from the first connecting arm 10 to prevent the pivot 30 from falling out, and the end of the rotating part 301 away from the stop part 302 is riveted to the second connecting arm 20.

[0022] A plurality of chip removal grooves 102, 202 are distributed along the axis of the pivot holes 101, 201 of the first connecting arm 10 and the second connecting arm 20. When the first connecting arm 10 and the second connecting arm 20 rotate relative to each other, the first copper sheet 50, the second copper sheet 60, and the third copper sheet 70 rotate relative to the pivot 30 due to the friction force of the first connecting arm 10 or the second connecting arm 20. During the rotation, the friction generates copper chips, which fall into the pivot holes 101, 201 of the first connecting arm 10 or the second connecting arm 20, so that the copper chips are hidden in the chip removal grooves 102, 202 or discharged through the chip removal grooves 102, 202.

[0023] In addition, the first copper sheet 50, the second copper sheet 60 and the third copper sheet 70 are provided with chip collecting holes 501, 601 and 701. When the surface of the first connecting arm 10 rubs against the surfaces of the first copper sheet 50 and the third copper sheet 70 and when the second connecting arm 20 rubs against the second copper sheet 60, the copper chips generated fall into the chip collecting holes 501, 601 and 701. By collecting the copper chips generated when the hinge rotates, the function of the hinge is not affected.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A free-stop hinge, comprising a first connecting arm (10), a second connecting arm (20) and a pivot (30), wherein the first connecting arm (10) and the second connecting arm (20) are both provided with pivot holes (101, 201) for the pivot (30) to rotate, and an elastic member (40) is further provided on the pivot (30), so that the first connecting arm (10) and the second connecting arm (20) are mutually pre-positioned by the elastic pre-tightening force of the elastic member (40), characterized in that: A first copper sheet (50) and a second copper sheet (60) are arranged between the first connecting arm (10) and the second connecting arm (20), a third copper sheet (70) is arranged between the first connecting arm (10) and the elastic member (40), the first copper sheet (50), the second copper sheet (60) and the third copper sheet (70) are arranged on a pivot (30), and a wall surface of the pivot hole (101, 201) is provided with a chip removal groove (102, 202) along the axial direction.

2. The free-stop hinge according to claim 1, characterized in that: A plurality of chip removal grooves (102, 202) are provided and distributed on the wall surface of the pivot hole (101, 201) along the axis thereof.

3. The free-stop hinge according to claim 1, characterized in that: The pivot (30) comprises a rotating part (301) and a stop part (302); the elastic member (40), the third copper sheet (70), the first connecting arm (10), the first copper sheet (50), the second copper sheet (60), and the second connecting arm (20) are rotatably arranged on the rotating part (301) in sequence; the stop part (302) is arranged on an end of the elastic member (40) away from the first connecting arm (10); and an end of the rotating part (301) away from the stop part (302) is riveted to the second connecting arm (20).

4. The free-stop hinge according to claim 1, characterized in that: The first copper sheet (50), the second copper sheet (60) and the third copper sheet (70) are provided with chip collecting holes (501, 601, 701).

Images