Hardware hinge

Abstract

The utility model discloses a hardware hinge in the technical field of hinges, which comprises a first hinge leaf, a second hinge leaf and a leaf shaft, the first hinge leaf is provided with a first sleeve joint part, the second hinge leaf is provided with a second sleeve joint part, a first bearing assembly and a first connecting sleeve are arranged in the first sleeve joint part, and a second bearing assembly is arranged in the second sleeve joint part. A first bearing assembly and a first connecting sleeve are arranged in the first sleeving part, a second bearing assembly and a second connecting sleeve are arranged in the second sleeving part, the first bearing assembly and the first connecting sleeve are arranged in the first sleeving part, and the second bearing assembly and the second connecting sleeve are arranged in the second sleeving part; the first rotating bearing and the second rotating bearing are arranged, so that the smoothness of the first hinge blade during rotation can be greatly improved, friction between the first hinge blade and the blade shaft is avoided, and the service life of the first hinge blade is prolonged; and the third rotating bearing and the fourth rotating bearing are arranged, so that the smoothness of the second hinge piece in the rotating process can be greatly improved, friction between the second hinge piece and the hinge shaft is avoided, and the service life of the second hinge piece is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a hardware hinge. Background Art

[0002] Hinge, also known as hinge, formally known as hinge, often composed of two folding, is a component that connects two parts of an object and enables it to move. Ordinary hinges are used for cabinet doors, windows, doors, etc. Before installation, check whether the hinge matches the door and window frame and leaf, check whether the hinge groove matches the height, width and thickness of the hinge, check whether the screws and fasteners connected to the hinge are matched, and the connection method of the hinge should match the material of the frame and leaf. For example, the hinge used for steel-framed wooden doors has one side connected to the steel frame by welding, and the side connected to the wooden door leaf is fixed with wood screws. In the case of asymmetric hinges, it should be identified which leaf should be connected to the leaf and which leaf should be connected to the door and window frame. The side connected to the three-section axis should be fixed to the frame, and the side connected to the two-section axis should be fixed to the door and window. During installation, ensure that the axis of the hinge on the same leaf is on the same plumb line to prevent the door and window leaf from warping.

[0003] However, traditional hinges are usually composed of a leaf shaft, a first hinge leaf and a second hinge leaf. The first hinge leaf and the second hinge leaf are both rotatably connected to the leaf shaft. However, when rotating, the inner wall of the sleeve joint of the first hinge leaf and the second hinge leaf rubs against the outer wall of the leaf shaft. During long-term use, the normal rotation of the first hinge or the second hinge is easily affected due to wear, resulting in a short service life and insufficient rotation. Utility Model Content

[0004] In order to overcome the deficiencies of the existing technical solutions, the utility model provides a hardware hinge, which can effectively solve the technical problems that traditional hinges are easily affected by wear and tear during long-term use, have a short service life, and rotate not smoothly enough.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a hardware hinge comprises a first hinge piece, a second hinge piece and a leaf shaft, wherein one end of the first hinge piece close to the leaf shaft is formed with three first sleeve connecting parts spaced apart from each other, and one end of the second hinge piece close to the leaf shaft is formed with two second sleeve connecting parts spaced apart from each other;

[0006] A first bearing assembly and a first connecting sleeve are provided inside the first sleeve connection portion, the first connecting sleeve is provided outside the first bearing assembly, the first bearing assembly includes a first inner washer and a first rotating bearing and a second rotating bearing which are spaced apart from each other, and the first sleeve connection portion is clamped with the first connecting sleeve;

[0007] A second bearing assembly and a second connecting sleeve are provided inside the second sleeve connection portion. The second connecting sleeve is provided on the outside of the second bearing assembly. The second bearing assembly includes a second inner washer and a third rotating bearing and a fourth rotating bearing spaced apart in an upper and lower manner. The second sleeve connection portion is clamped with the second connecting sleeve.

[0008] Preferably, a first slot is formed on the inner wall of the first sleeve portion, and a first protrusion is formed on the outer wall of the first connecting sleeve, and the first protrusion is slidably connected with the first slot.

[0009] Preferably, a second slot is formed on the inner wall of the second sleeve portion, and a second protrusion is formed on the outer wall of the second connecting sleeve, and the second protrusion is slidably connected with the second slot.

[0010] Preferably, the first inner washer is arranged between the first rotary bearing and the second rotary bearing, and the second inner washer is arranged between the third rotary bearing and the fourth rotary bearing.

[0011] Preferably, an outer gasket is provided between the first sleeve connection portion and the second sleeve connection portion, an upper sealing member is provided at the top end of the blade shaft, and a lower sealing member is provided at the bottom end of the blade shaft.

[0012] Preferably, the first hinge piece is provided with a first countersunk hole, and the second hinge piece is provided with a second countersunk hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By arranging the first bearing assembly and the first connecting sleeve inside the first sleeve joint, and arranging the second bearing assembly and the second connecting sleeve inside the second sleeve joint, arranging the first rotating bearing and the second rotating bearing can greatly improve the smoothness of the rotation of the first hinge blade, and avoid friction between the first hinge blade and the blade shaft, thereby effectively improving the service life of the first hinge piece. Arranging the third rotating bearing and the fourth rotating bearing can greatly improve the smoothness of the rotation of the second hinge piece, and avoid friction between the second hinge piece and the blade shaft, thereby effectively improving the service life of the second hinge piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the hardware hinge of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the leaf shaft in the hardware hinge of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the first hinge piece and the second hinge piece in the hardware hinge of the utility model;

[0018] Figure 4 for Figure 3Schematic diagram of the structure of part A.

[0019] Numbers in the figure:

[0020] 1-first sleeve joint, 2-first connecting sleeve, 3-second connecting sleeve, 4-second protrusion, 5-second sleeve joint, 6-first protrusion, 7-first rotary bearing, 8-first countersunk hole, 9-upper seal, 10-outer gasket, 11-second countersunk hole, 12-second hinge, 13-lower seal, 14-first hinge, 15-first inner gasket, 16-third rotary bearing, 17-fourth rotary bearing, 18-second inner gasket, 20-blade shaft, 21-second rotary bearing. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-4As shown, the utility model provides a hardware hinge, including a first hinge piece 14, a second hinge piece 12 and a leaf shaft 20, wherein one end of the first hinge piece 14 close to the leaf shaft 20 is formed with three first sleeve connecting parts 1 spaced apart from each other, and one end of the second hinge piece close to the leaf shaft 20 is formed with two second sleeve connecting parts 5 spaced apart from each other, an outer gasket 10 is provided between the first sleeve connecting part 1 and the second sleeve connecting part 5, an upper sealing member 9 is provided at the top end of the leaf shaft 20, and a lower sealing member 13 is provided at the bottom end of the leaf shaft 20, a first bearing assembly and a first connecting sleeve 2 are provided inside the first sleeve connecting part 1, the first connecting sleeve 2 is provided on the outside of the first bearing assembly, the first bearing assembly includes a first inner gasket 15 and a first rotating bearing 7 and a second rotating bearing 21 spaced apart from each other, the first sleeve connecting part 1 is clamped with the first connecting sleeve 2, and the second sleeve connecting part 5 is provided inside A connecting sleeve 3, wherein the second connecting sleeve 3 is arranged on the outer side of the second bearing assembly, and the second bearing assembly includes a second inner washer 18 and a third rotating bearing 16 and a fourth rotating bearing 17 which are spaced apart from each other in an upper and lower manner, the second sleeve connection portion 5 is clamped with the second connecting sleeve 3, a first clamping groove is provided on the inner wall of the first sleeve connection portion 1, a first protrusion 6 is formed on the outer wall of the first connecting sleeve 2, and the first protrusion 6 is slidably connected with the first clamping groove, a second clamping groove is provided on the inner wall of the second sleeve connection portion 5, a second protrusion 4 is formed on the outer wall of the second connecting sleeve 3, and the second protrusion 4 is slidably connected with the second clamping groove, the first inner washer 15 is arranged between the first rotating bearing 7 and the second rotating bearing 21, the second inner washer 18 is arranged between the third rotating bearing 16 and the fourth rotating bearing 17, the first hinge piece 14 is provided with a first countersunk hole 8, and the second hinge piece 12 is provided with a second countersunk hole 11.

[0023] Compared with the conventional technology: by arranging the first bearing assembly and the first connecting sleeve 2 inside the first sleeve joint 1, and arranging the second bearing assembly and the second connecting sleeve 3 inside the second sleeve joint 5, arranging the first rotating bearing 7 and the second rotating bearing 21 can greatly improve the smoothness of the rotation of the first hinge blade, and avoid the friction between the first hinge blade and the blade shaft 20, thereby effectively improving the service life of the first hinge piece 14, and arranging the third rotating bearing 16 and the fourth rotating bearing 17 can greatly improve the smoothness of the rotation of the second hinge piece 12, and avoid the friction between the second hinge piece 12 and the blade shaft 20, thereby effectively improving the service life of the second hinge piece 12.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A hardware hinge, comprising a first hinge piece, a second hinge piece and a leaf shaft, characterized in that: The first hinge piece has one end close to the leaf shaft formed with three first sleeve connection parts spaced apart from each other, and the second hinge piece has one end close to the leaf shaft formed with two second sleeve connection parts spaced apart from each other. A first bearing assembly and a first connecting sleeve are provided inside the first sleeve connection portion, the first connecting sleeve is provided outside the first bearing assembly, the first bearing assembly includes a first inner washer and a first rotating bearing and a second rotating bearing which are spaced apart from each other, and the first sleeve connection portion is clamped with the first connecting sleeve; A second bearing assembly and a second connecting sleeve are provided inside the second sleeve connection portion. The second connecting sleeve is provided on the outside of the second bearing assembly. The second bearing assembly includes a second inner washer and a third rotating bearing and a fourth rotating bearing spaced apart in an upper and lower manner. The second sleeve connection portion is clamped with the second connecting sleeve.

2. The hardware hinge according to claim 1, characterized in that: A first slot is formed on the inner wall of the first sleeve portion, and a first protrusion is formed on the outer wall of the first connecting sleeve. The first protrusion is slidably connected with the first slot.

3. The hardware hinge according to claim 1, characterized in that: A second slot is formed on the inner wall of the second sleeve portion, and a second protrusion is formed on the outer wall of the second connecting sleeve. The second protrusion is slidably connected with the second slot.

4. The hardware hinge according to claim 1, characterized in that: The first inner washer is arranged between the first rotating bearing and the second rotating bearing, and the second inner washer is arranged between the third rotating bearing and the fourth rotating bearing.

5. The hardware hinge according to claim 1, characterized in that: An outer gasket is arranged between the first sleeve connection part and the second sleeve connection part, an upper sealing member is arranged at the top end of the blade shaft, and a lower sealing member is arranged at the bottom end of the blade shaft.

6. The hardware hinge according to claim 1, characterized in that: The first hinge piece is provided with a first countersunk hole, and the second hinge piece is provided with a second countersunk hole.

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