CN220353654U - Double-shaft structure rotary arm hinge - Google Patents

Abstract

The utility model discloses a double-shaft structure rotary arm hinge which comprises a rotary arm part, a rotary arm fixing seat and a door leaf hinge plate assembly. The rotating arm component comprises a rotating arm assembly A, a rotating arm assembly B and a screw; the rotary arm assembly A comprises a rotary arm A, a positioning device and a plane supporting piece A, wherein the rotary arm A comprises a shaft hole A and a connecting part A, the positioning device is arranged between the shaft hole A and the connecting part A and is of a positioning device structure consisting of steel balls, springs and tubular device bodies, and the tubular device bodies of the positioning device are integrally designed with the rotary arm A or are connected and fixed with the rotary arm A in a welding or riveting mode.

Description

Double-shaft structure rotary arm hinge

Technical Field

The utility model relates to a double-shaft structure rotating arm hinge, and belongs to hardware products.

Background

Hinges are an important component of door products. The existing concealed type rotary arm hinge for the burglary-resisting door is generally a rotary arm hinge with a single-shaft structure and a rotary shaft in the inner cavity of a door frame, and is commonly called as a rotary arm hinge. The rotating arm hinge is fixedly connected with the door frame in a welding mode through the hinge box. The door leaf is troublesome to install and debug, the door leaf opening angle is not large, and the door leaf opening angle can only reach about 120 degrees at most. Therefore, the rotary arm hinge which is convenient to assemble, debug and install, easy and flexible to open and can enable the door leaf to open by 180 degrees is more important for development and design.

Disclosure of Invention

Based on the defects and requirements of the products, the technical problem to be solved by the utility model is to provide a technical scheme of a double-shaft structure rotary arm hinge capable of enabling the door leaf to be opened by 180 degrees.

The following technical scheme is adopted by the utility model:

a double-shaft structure rotary arm hinge comprises a rotary arm part, a rotary arm fixing seat and a door leaf hinge plate assembly. The rotating arm component comprises a rotating arm assembly A, a rotating arm assembly B and a screw; the rotary arm assembly A comprises a rotary arm A, a positioning device and a plane supporting piece A, wherein the rotary arm A comprises a shaft hole A and a connecting part A, the positioning device is arranged between the shaft hole A and the connecting part A, the positioning device is of a positioning device structure consisting of steel balls, springs and tubular device bodies, and the tubular device bodies of the positioning device are integrally designed with the rotary arm A or are connected and fixed with the rotary arm A in a welding or riveting mode; the rotating arm assembly B at least comprises a rotating arm B, a positioning reed and a plane supporting piece B, wherein the rotating arm B comprises a shaft hole B and a connecting part B, a square slotted hole is formed in the shaft hole B, the square slotted hole penetrates through the inner wall and the outer wall of the shaft hole B, the positioning reed is arranged on the outer side of the square slotted hole and extends inwards to be matched with a clamping groove arranged on the rotating shaft B for installation, and the positioning reed and the rotating arm B are fixed in a riveting or screwing mode; the connecting part A of the rotating arm assembly A and the connecting part B of the rotating arm assembly B are connected and fixed through a group of screws to form a rotating arm part with a double-shaft-hole rotating arm structure, a long mounting hole A is arranged at the connecting part A of the rotating arm A or the connecting part B of the rotating arm B to adjust the distance between shaft holes of the two rotating arms, and a space notch A and a space notch B with concave structures are formed between the shaft holes A and the shaft holes B; the rotating arm fixing seat penetrates through a shaft hole C of the rotating arm fixing seat through a rotating shaft A and is connected and fixed with the end of a shaft hole A of the rotating arm part; the door leaf hinge plate assembly penetrates through the door leaf hinge plate shaft hole D through the rotating shaft B, is connected with the shaft hole B end of the rotating arm part, and is fixedly arranged at two ends of the shaft hole D of the door leaf hinge plate, namely the rotating shaft B cannot rotate relative to the shaft hole D of the door leaf hinge plate, and a double-shaft rotating arm hinge is formed.

The rotating arm fixing seat is provided with a shaft hole C, an arc-shaped guide groove and a steel ball positioning hole of the positioning device on at least the upper supporting surface and the lower supporting surface. Designing a positioning hole: when the hinge is opened, the clamping groove of the rotating shaft B on the door leaf hinge plate is buckled with the positioning reed on the rotating arm part to drive the rotating arm part to rotate around the rotating shaft A, so that the rotating arm part rotates until the steel balls of the positioning device are positioned and limited in the positioning holes, and the rotating arm part stops rotating around the rotating shaft A; the hinge is opened continuously, the door leaf hinge plate can be opened continuously through the rotating shaft B to compensate a certain angle even to 180 degrees, and the arc-shaped guide groove is easy when the door leaf is opened normally, so that the steel balls of the positioning device smoothly enter the positioning hole and lock the position; when the hinge is folded, firstly, the door leaf hinge plate drives the rotating shaft B to rotate to the positioning reed on the rotating arm assembly B to clamp the clamping groove on the rotating shaft B, and drives the rotating arm part to rotate so as to reset the hinge.

Further: the positioning device is a positioning device structure formed by steel balls, a spring positioning device structure or a reed, and is welded with the rotating arm A or connected with the rotating arm A by screws or riveted.

Further: the door leaf hinge plate comprises a shaft hole D, a rolled extension surface, a bending angle and a mounting plate, wherein at least one group of long mounting holes B or round mounting holes are formed in the mounting plate, and the long mounting holes B and a shaft core wire of the shaft hole D are designed in the perpendicular or parallel direction.

Further: the plane supporting piece A and the plane supporting piece B are plane bearing structures of the shaft sleeve and the plane gaskets, or plane bearing structures of the copper gaskets between the two plane gaskets or plane bearing structures of the plane gaskets.

Further: the rotary arm C of the integral structure comprises a shaft hole A, a shaft hole B and a connecting section 1a, wherein two ends of the connecting section 1a are respectively connected with the shaft hole A and the shaft hole B, and a space notch A and a space notch B of a concave structure are formed between the shaft hole A and the shaft hole B; the shaft hole B is provided with a square slot hole, the square slot hole penetrates through the inner wall and the outer wall of the shaft hole B, and the positioning reed is arranged on the outer side of the square slot hole and extends inwards to be matched and arranged with the clamping groove arranged on the rotating shaft B.

Further: the rotary arm fixing seat is provided with a box-type rotary arm fixing seat and an ear-type bracket structure, the ear-type bracket structure is provided with a right-angle formed mounting foot and a supporting surface which are symmetrically designed, the mounting foot is provided with a mounting fixing hole which is fixedly connected with a door frame, and the supporting surface is provided with a shaft hole C, an arc-shaped guide groove and a steel ball positioning hole of a positioning device; the rotary arm fixing seat of the box type structure is at least a box type structure with three folded sides, and the upper and lower supporting surfaces of the rotary arm fixing seat are provided with a shaft hole C, an arc-shaped guide groove and a steel ball positioning hole of the positioning device.

When the hinge is opened, the clamping groove of the rotating shaft B on the door leaf hinge plate is buckled with the positioning reed on the rotating arm part to drive the rotating arm part to rotate around the rotating shaft A, so that the rotating arm part rotates until the steel balls of the positioning device are positioned and limited in the positioning holes, and the rotating arm part stops rotating around the rotating shaft A; the hinge continues to open, overcomes the clamping force of the positioning reed, the positioning reed is separated from the clamping groove of the rotating shaft B, the door leaf hinge plate can continue to open a certain angle around the rotating shaft B even to 180 degrees, and when the hinge is closed, the door leaf hinge plate drives the rotating shaft B to rotate to the positioning reed on the rotating arm assembly B to clamp the clamping groove on the rotating shaft B, and drives the rotating arm part to rotate so as to reset the hinge. In addition, the distance between the shaft holes of the two rotating arms can be adjusted by arranging the long mounting holes A on the connecting part A of the rotating arm A or the connecting part B of the rotating arm B, so that the fit clearance between the door leaf and the door frame can be adjusted, and the assembly, the debugging and the installation of the door leaf are convenient.

Drawings

FIG. 1 is a perspective view of a box-type biaxial structure swivel arm hinge;

fig. 2 is a perspective explanatory view of the structure of the door leaf hinge plate assembly, the rotating arm part and the rotating arm fixing seat arranged from left to right;

FIG. 3 is a perspective view illustrating the structure of the rotating arm part;

FIG. 4 is an exploded perspective view illustrating the construction of the swivel arm assembly;

FIG. 5 is an explanatory diagram of the structure of the swivel arm fixing base;

FIG. 6 is a perspective illustration of structural features of a swivel arm mount of box construction;

FIG. 7 is an illustration of door leaf hinge plate structure characteristics;

FIG. 8 is an explanatory view of a sectional structure of a split-type boom member composed of a boom assembly A and a boom assembly B;

FIG. 9 is an explanatory view of a cross-sectional structure of the integral arm member;

fig. 10 is a perspective explanatory view of structural features of the swivel arm fixing base of the ear-type bracket structure.

Description of the embodiments

The utility model will be further described with reference to the accompanying drawings, 1-10, in conjunction with the examples:

the double-shaft structure rotating arm hinge comprises a rotating arm part 1, a rotating arm fixing seat 2 and a door leaf hinge plate assembly 3. The rotating arm part 1 comprises a rotating arm assembly A1-1, a rotating arm assembly B1-2 and a screw 1-3; the rotating arm assembly A1-1 comprises a rotating arm A1-1-1, a positioning device 1-1-2 and a plane supporting piece A1-1-3, wherein the rotating arm A1-1-1 comprises a shaft hole A1-1-1-1 and a connecting part A1-1-1-2, the positioning device 1-1-2 is arranged between the shaft hole A1-1-1 and the connecting part A1-1-2, the positioning device 1-1-2 is a positioning device structure formed by steel balls 1-1-2-1, springs 1-1-2-2 and a tubular device body 1-1-2-3, and the tubular device body 1-1-2-3 of the positioning device 1-1-2 is integrally designed with the rotating arm A1-1 or is connected and fixed with the rotating arm A1-1-1 in a welding or riveting mode; the rotary arm assembly B1-2 at least comprises a rotary arm B1-2-1, a positioning reed 1-2-2 and a plane supporting piece B1-2-3, wherein the rotary arm B1-2-1 comprises a shaft hole B1-2-1-1 and a connecting part B1-2-1-2, a square slotted hole 1-2-1-3 is arranged on the shaft hole B1-2-1-1, the square slotted hole 1-2-1-3 penetrates through the inner wall and the outer wall of the shaft hole B1-2-1-1, the positioning reed 1-2-2 is arranged outside the square slotted hole 1-2-1-3, extends inwards and is matched with a clamping groove 5-1 arranged on the rotary shaft B5, and the positioning reed 1-2-2 and the rotary arm B1-2-1 are fixed in a riveting or screwing mode; the connecting part A1-1-1-2 of the rotating arm assembly A1-1 and the connecting part B1-2-1-2 of the rotating arm assembly B1-2 are connected and fixed through a group of screws 1-3 to form a rotating arm part 1 with a double-shaft hole rotating arm structure, a long mounting hole A1-1-1-3 is arranged at the connecting part A1-1-1-2 of the rotating arm A1-1 or the connecting part B1-2-1-2 of the rotating arm B1-1 to adjust the distance between shaft holes of the two rotating arms, and a space notch A1-1-1-4 and a space notch B1-1-1-5 with concave structures are formed between the shaft holes A1-1-1-1 and the shaft holes B1-2-1-1; the rotating arm fixing seat 2 penetrates through a shaft hole C2-1 of the rotating arm fixing seat 2 through a rotating shaft A4 to be connected and fixed with the end of a shaft hole A1-1-1-1 of the rotating arm part 1; the door leaf hinge plate assembly 3 penetrates through the shaft hole D3-1-1 of the door leaf hinge plate 3-1 through the rotating shaft B5, is connected with the end of the shaft hole B1-2-1-1 of the rotating arm part 1, and is fixedly arranged at two ends of the shaft hole D3-1-1 of the door leaf hinge plate 3-1 in a dead mode to form a double-shaft rotating arm hinge.

The rotating arm fixing seat 2 is provided with a shaft hole C2-1, an arc-shaped guide groove 2-1 and a steel ball 1-1-2-1 positioning hole 2-3 of the positioning device 1-1-2 on at least the upper and lower supporting surfaces. Designing a positioning hole 2-3: when the hinge is opened, the clamping groove 5-1 of the rotating shaft B5 on the door leaf hinge plate 3-1 buckles the positioning reed 1-2-2 on the rotating arm part 1 to drive the rotating arm part 1 to rotate around the rotating shaft A4, so that the rotating arm part 1 rotates to the steel balls 1-1-2-1 of the positioning device 1-1-2 to be positioned and limited in the positioning hole 2-3, and the rotating arm part 1 stops rotating around the rotating shaft A4; the hinge is continuously opened, the door leaf hinge plate 3-1 can be continuously opened by a certain angle even to 180 degrees through the rotating shaft B5, and the arc-shaped guide groove 2-1 is easy when the door leaf is normally opened, so that the steel ball 1-1-2-1 of the positioning device 1-1-2 smoothly enters the positioning hole 2-3 and is locked in position; when the hinge is folded, firstly, the door leaf hinge plate 3-1 drives the rotating shaft B5 to rotate to the positioning reed 1-2-2 on the rotating arm assembly B1-2 to clamp the clamping groove 5-1 on the rotating shaft B5, and drives the rotating arm part 1 to rotate to reset the hinge.

Preferably: the positioning device 1-1-2 is a positioning device structure formed by steel balls 1-2-2-1 and springs 1-2-2-2 or a reed, and the positioning device 1-1-2 is welded with the rotating arm A1-1-1 or connected with the rotating arm A1-1 by screws or riveted and fixed.

Preferably: the door leaf hinge plate 3-1 comprises a shaft hole D3-1-1, a rolled extension surface 3-1-2, a bending angle 3-1-3 and a mounting plate 3-1-4, wherein at least one group of long mounting holes B3-1-5 or round mounting holes are formed in the mounting plate 3-1-4, and the long mounting holes B3-1-5 are designed in the direction perpendicular to or parallel to the shaft core line of the shaft hole D3-1-1.

Preferably: the plane supporting pieces A1-1-3 and the plane supporting pieces B1-2-3 are plane bearing structures of a shaft sleeve and plane gaskets, plane bearing structures of two plane gaskets with copper gaskets sandwiched therebetween or plane bearing structures of plane gaskets.

Preferably: the rotating arm part 1 or the rotating arm C1a with an integral structure comprises a shaft hole A1-1-1, a shaft hole B1-2-1-1 and a connecting section 1a-1, wherein two ends of the connecting section 1a-1 are respectively connected with the shaft hole A1-1-1-1 and the shaft hole B1-2-1-1, and a space notch A1-1-1-4 and a space notch B1-1-1-5 with concave structures are formed between the shaft hole A1-1-1-1 and the shaft hole B1-2-1-1; the shaft hole B1-2-1-1 is provided with a square slotted hole 1-2-1-3, the square slotted hole 1-2-1-3 penetrates through the inner wall and the outer wall of the shaft hole B1-2-1-1, and the positioning reed 1-2-2 is arranged on the outer side of the square slotted hole 1-2-1-3 and extends inwards to be matched and arranged with the clamping groove 5-1 arranged on the rotating shaft B5.

Preferably: the rotary arm fixing seat 2 is a rotary arm fixing seat 2 with a box type structure or a rotary arm fixing seat 2 with an ear type support structure, the rotary arm fixing seat 2 with the ear type support structure is a right-angle forming mounting foot 2-4 and a supporting surface 2-5 which are symmetrically designed, the mounting foot 2-4 is provided with a mounting fixing hole 2-4-1 which is fixedly connected with a door frame, and the supporting surface 2-5 is provided with a shaft hole C2-1, an arc-shaped guide groove 2-2 and a steel ball 1-1-2-1 positioning hole 2-3 of the positioning device 1-1-2; the rotary arm fixing seat 2 of the box type structure is a box type structure with three folded sides at least, and the upper and lower supporting surfaces of the rotary arm fixing seat 2 are provided with a shaft hole C2-1, an arc-shaped guide groove 2-2 and a steel ball 1-1-2-1 positioning hole 2-3 of the positioning device 1-1-2.

Finally, it should be noted that the above list is only a preferred embodiment of the present utility model. Obviously, many variations are possible without being limited to the above embodiments. All structural, principle and shape modifications (in particular, the shape of the swivel arm, the structural form of the swivel arm mounting) which can be directly derived or suggested by the present disclosure are to be considered as protective scope of the present utility model.

Claims (7)

1. The double-shaft structure rotating arm hinge comprises a rotating arm part (1), a rotating arm fixing seat (2) and a door leaf hinge plate assembly (3), and is characterized in that: the rotating arm part (1) comprises a rotating arm assembly A (1-1), a rotating arm assembly B (1-2) and a screw (1-3); the rotating arm assembly A (1-1) comprises a rotating arm A (1-1-1), a positioning device (1-1-2) and a plane supporting piece A (1-1-3), wherein the rotating arm A (1-1-1) comprises a shaft hole A (1-1-1-1) and a connecting part A (1-1-1-2), the positioning device (1-1-2) is arranged between the shaft hole A (1-1-1) and the connecting part A (1-1-1-2), and the positioning device (1-1-2) and the rotating arm A (1-1) are integrally designed or are connected and fixed with the rotating arm A (1-1) in a welding or riveting mode; the rotary arm assembly B (1-2) at least comprises a rotary arm B (1-2-1), a positioning reed (1-2-2) and a plane supporting piece B (1-2-3), wherein the rotary arm B (1-2-1) comprises a shaft hole B (1-2-1-1) and a connecting part B (1-2-1-2), a square groove hole (1-2-1-3) is formed in the shaft hole B (1-2-1-1), the square groove hole (1-2-1-3) penetrates through the inner wall and the outer wall of the shaft hole B (1-2-1-1), the positioning reed (1-2-2) is arranged outside the square groove hole (1-2-1-3) and extends inwards to be matched with a clamping groove (5-1) formed in the rotary shaft B (5), and the positioning reed (1-2-2) is riveted or screwed and fixed with the rotary arm B (1-2-1); the connecting part A (1-1-1-2) of the rotating arm assembly A (1-1) and the connecting part B (1-2-1-2) of the rotating arm assembly B (1-2) are connected and fixed through a group of screws (1-3) to form a rotating arm part (1) with a double-shaft hole rotating arm structure, a long mounting hole A (1-1-1-3) is arranged at the connecting part A (1-1-1-2) of the rotating arm A (1-1) or the connecting part B (1-2-1-2) of the rotating arm B (1-2-1) to adjust the distance between shaft holes of the two rotating arms, and a space notch A (1-1-1-4) and a space notch B (1-1-1-5) with concave structures are formed between the shaft holes A (1-1-1-1 and the shaft holes B (1-2-1-1-1). The rotating arm fixing seat (2) penetrates through a shaft hole C (2-1) of the rotating arm fixing seat (2) through a rotating shaft A (4) to be connected and fixed with the end of a shaft hole A (1-1-1-1) of the rotating arm part (1); the door leaf hinge plate assembly (3) penetrates through a shaft hole D (3-1-1) of the door leaf hinge plate (3-1) through a rotating shaft B (5), is connected with the end of a shaft hole B (1-2-1-1) of the rotating arm part (1) and is fixedly arranged at two ends of the shaft hole D (3-1-1) of the door leaf hinge plate (3-1) in a dead mode, and a double-shaft rotating arm hinge is formed.

2. A biaxial structured swivel arm hinge according to claim 1, characterized in that: the rotating arm fixing seat (2) is provided with a shaft hole C (2-1), an arc-shaped guide groove (2-2) and a steel ball (1-1-2-1) locating hole (2-3) of the locating device (1-1-2) on at least the upper supporting surface and the lower supporting surface.

3. A biaxial construction swivel arm hinge according to claim 1 or 2, characterized in that: the positioning device (1-1-2) is a positioning device structure composed of steel balls (1-1-2-1), springs (1-1-2-2) and a tubular device body (1-1-2-3), and the positioning device (1-1-2) and the rotating arm A (1-1-1) are integrally designed or welded, connected by screws and riveted.

4. A biaxial construction swivel arm hinge according to claim 1 or 2, characterized in that: the door leaf hinge plate (3-1) comprises a shaft hole D (3-1-1), a rolling extension surface (3-1-2), a bending angle (3-1-3) and a mounting plate (3-1-4), wherein at least one group of long mounting holes B (3-1-5) or round mounting holes are formed in the mounting plate (3-1-4), and the long mounting holes B (3-1-5) and a shaft core wire of the shaft hole D (3-1-1) are designed in a perpendicular or parallel direction.

5. A biaxial construction swivel arm hinge according to claim 1 or 2, characterized in that: the plane supporting piece A (1-1-3) and the plane supporting piece B (1-2-3) are plane bearing structures of a shaft sleeve and plane gaskets, plane bearing structures of two plane gaskets with copper gaskets sandwiched therebetween or plane bearing structures of plane gaskets.

6. A biaxial swivel arm hinge according to any one of claims 1 and 2, characterized in that: the rotary arm part (1) or the rotary arm C (1 a) with an integral structure comprises a shaft hole A (1-1-1-1), a shaft hole B (1-2-1-1) and a connecting section (1 a-1), wherein two ends of the connecting section (1 a-1) are respectively connected with the shaft hole A (1-1-1-1) and the shaft hole B (1-2-1-1), and a space notch A (1-1-1-4) and a space notch B (1-1-5) with concave structures are formed between the shaft hole A (1-1-1-1) and the shaft hole B (1-2-1-1-1); the positioning reed (1-2-2) is arranged outside the square slotted hole (1-2-1-3) and extends inwards to be matched with the clamping groove (5-1) arranged on the rotating shaft B (5).

7. A biaxial swivel arm hinge according to any one of claims 1 and 2, characterized in that: the rotary arm fixing seat (2) is a rotary arm fixing seat (2) with a box type structure or a rotary arm fixing seat (2) with an ear type support structure, the rotary arm fixing seat (2) with the ear type support structure is a right-angle formed mounting foot (2-4) and a supporting surface (2-5) which are symmetrically designed, a mounting fixing hole (2-4-1) which is fixedly connected with a door frame is arranged on the mounting foot (2-4), and a shaft hole C (2-1), an arc-shaped guide groove (2-2) and a steel ball (1-1-2-1) positioning hole (2-3) of the positioning device (1-1-2) are arranged on the supporting surface (2-5); the rotary arm fixing seat (2) of the box type structure is a box type structure with three folded sides at least, and the upper supporting surface and the lower supporting surface of the rotary arm fixing seat are provided with a shaft hole C (2-1), an arc-shaped guide groove (2-2) and a steel ball (1-1-2-1) positioning hole (2-3) of the positioning device (1-1-2).