CN217681162U

CN217681162U - Double-shaft hinge

Info

Publication number: CN217681162U
Application number: CN202123450814.XU
Authority: CN
Inventors: 李泽华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-10-28
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a biax hinge, it mainly comprises door frame hinge plate, rocking arm subassembly, door leaf hinge plate, primary shaft, gasket A, secondary shaft, gasket B. The gasket A and the gasket B penetrate through the first shaft and the second shaft and are respectively padded on the inner sides of the two rolling round parts of the door leaf hinge plate and the door frame hinge plate to be abutted and mounted; the hinge is characterized in that the first shaft is at least provided with a V-shaped ship-shaped clamping groove A and an angle position positioning hole A in the middle of the shaft, the V-shaped ship-shaped clamping groove A and the positioning hole A are distributed at intervals of 90 degrees, the second shaft is at least provided with a V-shaped ship-shaped clamping groove B and an angle position positioning hole B in the middle of the shaft, the V-shaped ship-shaped clamping groove B and the positioning hole B are distributed at intervals of 90 degrees, the V-shaped ship-shaped clamping groove A, the positioning hole A, the V-shaped ship-shaped clamping groove B and the positioning hole B on the first shaft and the second shaft are distributed at intervals of 90 degrees in the initial state of the hinge, and the first shaft and the second shaft are fixedly and fixedly connected relative to the door leaf hinge plate and the door frame hinge plate.

Description

Double-shaft hinge

Technical Field

The utility model relates to a biax hinge belongs to five metals class product.

Background

Hinges are an important component of door products. The hinge for the existing anti-theft door is characterized in that a gasket is added between a door frame half hinge and a door leaf half hinge in a general axial direction, a shaft sleeve is not radially designed, when the hinge bears load, friction between the door leaf half hinge and a gasket plane and between a core shaft and a door leaf half hinge shaft hole is severe, and the hinge takes a long time and can make a squeak noise. In addition, the market demand for high-grade security doors in recent years is increasing the adoption of concealed hinges. The concealed hinge is generally that the rotating arm hinges of the rotating shaft on the door frame are more, and the rotating arm hinges influence the effective width of the door frame opening and the carrying-in of large furniture because the opening angle of the door leaf is only more than 90 degrees. Therefore, it is increasingly important to develop and design a concealed hinge with a large opening angle, which is easy and flexible to open, has no noise, and can bear heavy weight.

SUMMERY OF THE UTILITY MODEL

Based on above-mentioned product defect and requirement, the to-be-solved technical problem of the utility model is to provide a stealthy hinge structure of biax.

The following is the technical proposal adopted by the utility model:

a double-shaft hinge mainly comprises a door frame hinge plate, a rotating arm assembly, a door leaf hinge plate, a first shaft, a gasket A, a second shaft and a gasket B. The gasket A and the gasket B penetrate through the first shaft and the second shaft and are respectively padded on the inner sides of the two rolling round parts of the door leaf hinge plate and the door frame hinge plate to be abutted and mounted; the hinge comprises a first shaft, a second shaft, a door leaf hinge plate, a door frame hinge plate, a door leaf hinge plate and a door frame hinge plate, wherein the first shaft is at least provided with a V-shaped ship-shaped clamping groove A and an angle position positioning hole A in the middle of the shaft, the V-shaped ship-shaped clamping groove A and the positioning hole A are distributed at intervals of 90 degrees, the second shaft is at least provided with a V-shaped ship-shaped clamping groove B and an angle position positioning hole B in the middle of the shaft, the V-shaped ship-shaped clamping groove B and the positioning hole B are distributed at intervals of 90 degrees, the V-shaped ship-shaped clamping groove A, the positioning hole A, the V-shaped ship-shaped clamping groove B and the positioning hole B on the first shaft and the second shaft are distributed at intervals of 90 degrees in an initial state of the hinge, and the first shaft and the second shaft are fixedly connected relative to the door leaf hinge plate and the door frame hinge plate; the A end of the shaft hole of the rotating arm assembly is connected with the two rolling parts of the door leaf hinge plate through a first shaft, and the two ends of the first shaft (4) are fixedly connected to the outer side ends of the two rolling parts of the door leaf hinge plate in a riveting or welding mode; the B end of the shaft hole is connected with the two curled parts of the door frame hinge plate through a second shaft, and the two ends of the second shaft are fixedly connected with the outer ends of the two curled parts of the door leaf hinge plate in a riveting or welding manner.

Preferably: the rotating arm assembly comprises a rotating arm, a shaft sleeve 1, a shaft sleeve 2 and steel ball plugs, wherein the shaft sleeve 1 is installed at two ends of a rotating arm shaft hole A, the shaft sleeve 2 is installed at two ends of a shaft hole B, a boss 1 and a boss 2 which extend outwards in an opposite mode are respectively arranged in the middle of the outer circles of the shaft hole A and the shaft hole B, the boss 1 and the boss 2 are respectively provided with a screw hole A and a screw hole B, the positioning steel ball plugs are installed on the boss 1 and the screw hole B, the small-diameter outer circle of the shaft sleeve 1 is in interference fit with the shaft hole A, and the inner hole of the shaft sleeve 1 is in clearance fit with the first shaft; the small-diameter outer circle of the shaft sleeve 2 is in interference fit with the shaft hole B, and the inner hole of the shaft sleeve 2 is in clearance fit with the second shaft; the rotating arm assembly is respectively connected with the door leaf hinge plate and the door frame hinge plate (1) through a first shaft and a second shaft to form the double-shaft hinge structure. The shaft sleeve 1, the shaft sleeve, the gasket A and the gasket B are designed on the rotating arm assembly, so that the end faces of the shaft hole and the shaft hole of the rotating arm are prevented from directly contacting and rubbing with the inner sides of the rolling circle parts of the first shaft, the second shaft, the door leaf hinge plate and the door frame hinge plate, a plane bearing effect is achieved, the rotating arm assembly can flexibly rotate, the bearing capacity of the hinge is enhanced, and the service life of the hinge is prolonged.

Preferably: the middle of two rolling circle portions of the rotating arm, namely a shaft hole A and a shaft hole B, is at least provided with an arc-shaped surface and a butt straight surface which are concentric circles with the shaft hole B to form an arc-shaped abdicating notch, so that the rotating arm rotating angle is increased by abdicating the real rotating arm and the door frame.

Preferably: the steel ball plug is composed of a plug, a compression spring and a steel ball. The plug installs the compression spring and the steel ball on the boss 1 and the boss 2 through the screw hole A and the screw hole B on the boss 1 and the boss 2, and the steel ball abuts against the positioning rotating arm in place with the V-shaped ship-shaped clamping groove A, the positioning hole A or the V-shaped ship-shaped clamping groove B and the positioning hole B on the first shaft and the second shaft. When the door leaf hinge plate rotates to a 90-degree opening state from a hinge starting state, the door leaf hinge plate drives the rotating arm assembly to rotate by 90 degrees to a state shown in the figure 3, the straight surface is abutted to the rotating arm in place to abut against a door frame, and meanwhile, the steel balls on the rotating arm boss 2 are clamped from the positioning hole B on the second shaft to the V-shaped ship-shaped clamping groove B; when the door leaf hinge plate rotates 90 degrees from the state of figure 3 to the state of figure 5 with the hinge opened 180 degrees, the steel balls on the rotating arm boss 1 are separated from the V-shaped ship-shaped clamping groove A on the first shaft to the positioning hole A for positioning. On the contrary, when the door leaf hinge plate returns to the hinge opening 90-degree state of fig. 3 from the hinge opening 180-degree state of fig. 5, the steel balls on the rotary arm boss 1 are separated from the positioning hole A on the first shaft to be clamped in the V-shaped ship-shaped clamping groove A, and when the door leaf hinge plate returns to the hinge initial state from the hinge opening 90-degree state of fig. 3, the steel balls on the rotary arm boss 2 are separated from the V-shaped ship-shaped clamping groove B on the second shaft to be positioned in place, and the door leaf hinge plate returns to the initial state.

Preferably: the mounting leg of the door leaf hinge plate is at least provided with a round hole, and the two sides of the round hole are symmetrically provided with a waist-round inclined plane long hole and two screw holes which are parallel to the first axial lead of the hinge. The long hole with the waist-round inclined plane is used for connecting the door leaf hinge plate with the door leaf so that the door leaf can be axially adjusted along the first shaft.

Preferably: the door frame hinge plate is provided with a yielding notch of the arc-shaped surface of the rotating arm, and two sides of the yielding notch are provided with a group of mounting screw holes for connecting the door frame hinge plate with a door frame.

The utility model has the advantages that: the hinge opening angle is big. The shaft sleeve and the gasket are combined to play a role of a plane bearing, so that the hinge rotating arm can rotate easily and flexibly and has strong bearing capacity. In addition, the two ends of the rotating shaft, the first shaft and the second shaft of the hinge are riveted or welded with the upper end and the lower end of the door leaf hinge plate and the door frame hinge plate into a whole, so that the bearing capacity of the rotating arm assembly is increased, the hinge is prevented from sagging under stress, and the service life of the hinge is prolonged.

Drawings

FIG. 1 is an explanatory view of an initial state of a hinge;

FIG. 2 is an enlarged partial view A of the hinge;

FIG. 3 is an explanatory view of a state where the hinge is opened by 90 degrees;

FIG. 4 is an enlarged partial view B of the hinge;

FIG. 5 is an explanatory view of the hinge in a state of being opened by 180 degrees;

FIG. 6 is a disassembled perspective view of the swivel arm structure of the hinge;

FIG. 7 is a perspective view illustrating the hinge in an open 180 degree position;

FIG. 8 is a plan view illustrating a pivot arm structure of the hinge;

FIG. 9 is a disassembled perspective view of the hinge 180 degrees open;

fig. 10 is an explanatory view of the structure of the door frame hinge plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings 1-9, in conjunction with the embodiments. The double-shaft hinge mainly comprises a door frame hinge plate (1), a rotating arm assembly (2), a door leaf hinge plate (3), a first shaft (4), a gasket A (5), a second shaft (6) and a gasket B (7). The gasket A (5) and the gasket B (7) penetrate through the first shaft (4) and the second shaft (6) and are respectively padded on the inner sides of two rolling round parts of the door leaf hinge plate (3) and the door frame hinge plate (1) to be installed in an abutting mode; the hinge is characterized in that the first shaft (4) is at least provided with a V-shaped ship-shaped clamping groove A (4-1) and an angle position positioning hole A (4-2) in the middle of the shaft, the V-shaped ship-shaped clamping groove A (4-1) and the angle position positioning hole A (4-2) are distributed at intervals of 90 degrees, the second shaft (6) is at least provided with a V-shaped ship-shaped clamping groove B (6-1) and an angle position positioning hole B (6-2) in the middle of the shaft, the V-shaped ship-shaped clamping groove B (6-1) and the positioning hole B (6-2) are distributed at intervals of 90 degrees, the V-shaped ship-shaped clamping groove A (4-1), the positioning hole A (4-2), the V-shaped ship-shaped clamping groove B (6-1) and the positioning hole B (6-2) on the first shaft (4) and the second shaft (6) are distributed at intervals of 90 degrees in the initial state of the hinge, and the first shaft (4) and the second shaft (6) are connected with the hinge plate (3) and the door frame (1) in a fixed dead state; the end of a shaft hole A (2-1-1) of the rotating arm component (2) is connected with two rolling round parts of the door leaf hinge plate (3) through a first shaft (4), and two ends of the first shaft (4) are fixedly connected to the outer side ends of the two rolling round parts of the door leaf hinge plate (3) in a riveting or welding mode; the end of the shaft hole B (2-1-2) is connected with the two curled round parts of the door frame hinge plate (1) through a second shaft (6), and two ends of the second shaft (6) are fixedly connected with the outer side ends of the two curled round parts of the door frame hinge plate (3) in a riveting or welding way.

Preferably: the rotating arm assembly (2) is composed of a rotating arm (2-1), a shaft sleeve 1 (2-2), a shaft sleeve 2 (2-3) and a steel ball plug (2-4), wherein the shaft sleeve 1 (2-2) is installed at two ends of a shaft hole A (2-1-1) of the rotating arm (2-1), the shaft sleeve 2 (2-3) is installed at two ends of the shaft hole B (2-1-2), a boss 1 (2-1-3) and a boss 2 (2-1-4) which extend outwards in an opposite direction are respectively arranged in the middle of the excircle of the shaft hole A (2-1-1) and the shaft hole B (2-1-2), the boss 1 (2-1-3) and the boss 2 (2-1-4) are respectively provided with a screw hole A (2-1-5) and a screw hole B (2-1-6) which are respectively provided with a positioning steel ball plug (2-4), the excircle of the shaft sleeve 1 (2-2) and the shaft hole A (2-1-1) are in interference fit, and the inner hole of the shaft sleeve 1 (2-2) is in clearance fit with a first shaft; the small-diameter excircle of the shaft sleeve 2 (2-3) is in interference fit with the shaft hole B (2-1-2), and the inner hole of the shaft sleeve 2 (2-3) is in clearance movable fit with the second shaft (6); the rotating arm assembly (2) is respectively connected with the door leaf hinge plate (3) and the door frame hinge plate (1) through a first shaft (4) and a second shaft (6) to form the double-shaft hinge structure. The shaft sleeve 1 (2-2), the shaft sleeve 2 (2-3), the gasket A (5) and the gasket B (7) are designed on the rotating arm assembly (2) to prevent the end faces of the shaft hole and the shaft hole of the rotating arm (2-1) from directly contacting and rubbing with the inner sides of the rolling parts of the first shaft (4), the second shaft (6), the door leaf hinge plate (3) and the door frame hinge plate (1), so that a plane bearing effect is achieved, the bearing capacity of the rotating arm assembly (2) can be flexibly rotated, and the service life of the hinge can be enhanced and prolonged.

Preferably: the middle of two circle-rolling parts of the shaft hole A (2-1-1) and the shaft hole B (2-1-2) of the rotating arm (2-1) is at least provided with a section of arc surface (2-1-7) which is concentric with the shaft hole B (2-1-2) and a butt straight surface (2-1-8) to form an arc abdicating notch (2-1-9), so that the abdicating of the real rotating arm (2-1) and the door frame is increased by rotating the rotating arm.

Preferably: the steel ball plug (2-4) consists of a plug (2-4-1), a compression spring (2-4-2) and a steel ball (2-4-3). The plug installs the compression spring (2-4-2) and the steel ball (2-4-3) on the boss 1 (2-1-3) and the boss 2 (2-1-4) through the screw hole on the boss 1 (2-1-3) and the boss 2 (2-1-4), and the steel ball (2-4-3) abuts against the positioning rotating arm (2-1) in place with the V-shaped ship-shaped clamping groove A (4-1), the positioning hole A (4-2) or the V-shaped ship-shaped clamping groove B (6-1) and the positioning hole B (6-2) on the first shaft (4) and the second shaft (6). When the door leaf hinge plate (3) rotates to a 90-degree opening state from a hinge starting state, the door leaf hinge plate (3) drives the rotating arm assembly (2) to rotate by 90 degrees to a state shown in a figure 3, the straight surface (2-1-5) is abutted to the rotating arm (2-1) in place to abut against a door frame, and meanwhile, the steel balls (2-4-3) on the boss (2-1-4) of the rotating arm (2-1) are clamped from the positioning hole B (6-2) on the second shaft (6) to the V-shaped ship-shaped clamping groove B (6-1); when the door leaf hinge plate (3) rotates 90 degrees from the state shown in figure 3 to the state shown in figure 5 that the hinge is opened 180 degrees, the steel balls (2-4-3) on the lug boss 1 (2-1-3) of the rotating arm (2-1) are separated from the V-shaped ship-shaped clamping groove A (4-1) on the first shaft (4) to the positioning hole A (4-2) to be positioned in place. On the contrary, the door leaf hinge plate (3) returns to the hinge opening 90-degree state shown in the figure 3 from the hinge opening 180-degree state shown in the figure 5, the steel balls (2-4-3) on the boss 1 (2-1-3) of the rotating arm (2-1) are separated from the positioning hole A (4-2) on the first shaft (4) to be clamped in the V-shaped ship-shaped clamping groove A (4-1), when the door leaf hinge plate (3) returns to the hinge initial state from the hinge opening 90-degree state shown in the figure 3, the steel balls (2-4-3) on the boss 2 (2-1-4) of the rotating arm (2-1) are separated from the V-shaped ship-shaped clamping groove B (6-1) on the second shaft (6) to be positioned in place, and the door leaf hinge plate (3) returns to the initial state.

Preferably: at least one round hole (3-1) is arranged on the mounting foot of the door leaf hinge plate (3), and four waist-round inclined plane long holes (3-2) parallel to the axial lead of the first shaft (4) of the hinge are symmetrically distributed and designed on two sides of the round hole (3-1). The waist-round inclined plane long hole (3-2) is used for connecting the door leaf hinge plate (3) with a door leaf so that the door leaf can be axially adjusted along the first shaft.

Preferably: the door frame hinge plate (1) is provided with a abdicating notch (1-1) of an arc-shaped surface (2-1-7) of the rotating arm (2-1), and two sides of the abdicating notch (1-4) are provided with a group of mounting screw holes (1-2) for connecting the door frame hinge plate (1) and the door frame.

Finally, it should be noted that the above-mentioned list is only the preferred embodiment of the present invention. It is clear that it is not limited to the above embodiments, but that many variations are possible. All structural, conceptual and geometric modifications that may occur to one skilled in the art from the disclosure of the present invention or may be suggested are intended to be within the scope of the present invention.

Claims

1. The utility model provides a biax hinge, it mainly comprises door frame hinge board (1), rocking arm subassembly (2), door leaf hinge board (3), primary shaft (4), gasket A (5), secondary shaft (6), gasket B (7), characterized by: the gasket A (5) and the gasket B (7) penetrate through the first shaft (4) and the second shaft (6) and are respectively padded on the inner sides of two rolling circle parts of the door leaf hinge plate (3) and the door frame hinge plate (1) to be abutted and mounted; the hinge is characterized in that the first shaft (4) is at least provided with a V-shaped ship-shaped clamping groove A (4-1) and an angle position positioning hole A (4-2) in the middle of the shaft, the V-shaped ship-shaped clamping groove A (4-1) and the angle position positioning hole A (4-2) are distributed at intervals of 90 degrees, the second shaft (6) is at least provided with a V-shaped ship-shaped clamping groove B (6-1) and an angle position positioning hole B (6-2) in the middle of the shaft, the V-shaped ship-shaped clamping groove B (6-1) and the positioning hole B (6-2) are distributed at intervals of 90 degrees, the V-shaped ship-shaped clamping groove A (4-1), the positioning hole A (4-2), the V-shaped ship-shaped clamping groove B (6-1) and the positioning hole B (6-2) on the first shaft (4) and the second shaft (6) are distributed at intervals of 90 degrees in an initial state of the hinge, and the first shaft (4) and the second shaft (6) are connected with the door leaf (3) and the door frame (1) in a fixed dead leaf state; the end of a shaft hole A (2-1-1) of the rotating arm component (2) is connected with two curled round parts of the door leaf hinge plate (3) through a first shaft (4), and two ends of the first shaft (4) are fixedly connected to the outer side ends of the two curled round parts of the door leaf hinge plate (3) in a riveting or welding mode; the end of the shaft hole B (2-1-2) is connected with the two curled round parts of the door frame hinge plate (1) through a second shaft (6), and two ends of the second shaft (6) are fixedly connected with the outer side ends of the two curled round parts of the door frame hinge plate (3) in a riveting or welding way.

2. A biaxial hinge as defined in claim 1, wherein: the rotating arm assembly (2) is composed of a rotating arm (2-1), a shaft sleeve 1 (2-2), a shaft sleeve 2 (2-3) and a steel ball plug (2-4), wherein the shaft sleeve 1 (2-2) is installed at two ends of a shaft hole A (2-1-1) of the rotating arm (2-1), the shaft sleeve 2 (2-3) is installed at two ends of the shaft hole B (2-1-2), a boss 1 (2-1-3) and a boss 2 (2-1-4) which extend outwards in an opposite direction are respectively arranged in the middle of the excircle of the shaft hole A (2-1-1) and the shaft hole B (2-1-2), the boss 1 (2-1-3) and the boss 2 (2-1-4) are respectively provided with a screw hole A (2-1-5) and a screw hole B (2-1-6) which are respectively provided with a positioning steel ball plug (2-4), the excircle of the shaft sleeve 1 (2-2) and the shaft hole A (2-1-1) are in interference fit, and the inner hole of the shaft sleeve 1 (2-2) is in clearance fit with a first shaft; the small-diameter excircle of the shaft sleeve 2 (2-3) is in interference fit with the shaft hole B (2-1-2), and the inner hole of the shaft sleeve 2 (2-3) is in clearance movable fit with the second shaft (6); the rotating arm assembly (2) is respectively connected with the door leaf hinge plate (3) and the door frame hinge plate (1) through a first shaft (4) and a second shaft (6) to form a double-shaft hinge structure.

3. A biaxial hinge as defined in claim 1 or 2, wherein: the middle of two rolling circle parts of a shaft hole A (2-1-1) and a shaft hole B (2-1-2) of the rotating arm (2-1) is at least provided with a section of arc-shaped surface (2-1-7) concentric with the shaft hole B (2-1-2) and an abutting straight surface (2-1-8) to form an arc abdicating notch (2-1-9).

4. A biaxial hinge as defined in claim 2, wherein: the steel ball plug (2-4) is composed of a plug (2-4-1), a compression spring (2-4-2) and a steel ball (2-4-3), the plug is used for mounting the compression spring (2-4-2) and the steel ball (2-4-3) on the boss 1 (2-1-3) and the boss 2 (2-1-4) through a screw hole A (2-1-5) and a screw hole B (2-1-6) on the boss 1 (2-1-3) and the boss 2 (2-1-4) and the steel ball (2-4-3) is abutted to a V-shaped clamping groove A (4-1), a positioning hole A (4-2) or a V-shaped clamping groove B (6-1) and a positioning hole B (6-2) in-place positioning rotating arm (2-1) on the first shaft (4) and the second shaft (6).

5. A biaxial hinge as defined in claim 1 or 2, wherein: at least one round hole (3-1) is arranged on the mounting foot of the door leaf hinge plate (3), and at least two sides of the round hole (3-1) are symmetrically provided with four waist-round inclined plane long holes (3-2) which are parallel to the axial lead of the first shaft (4) of the hinge.

6. A biaxial hinge as defined in claim 1 or 2, wherein: the door frame hinge plate (1) is provided with a abdicating notch (1-1) of an arc-shaped surface (2-1-7) of a rotating arm (2-1), and two sides of the abdicating notch (1-1) are provided with a group of mounting screw holes (1-2) for connecting the door frame hinge plate (1) and the door frame.