Hinge door leaf rotating arm structure

Abstract

The utility model discloses a hinge door leaf rotating arm structure which at least comprises a door leaf hinge plate assembly, a double-shaft-hole rotating arm assembly, a door leaf connecting shaft, a plane supporting piece and an elastic cylindrical pin. The door leaf hinge plate assembly at least comprises a door leaf hinge plate and a positioning device. The outer circle of a shaft hole B of the door leaf hinge plate is at least provided with an outward boss and a threaded hole A, the outward boss is perpendicular to and intersects with the center line of the shaft hole B, the threaded hole A penetrates through the hole wall of the shaft hole B, and a positioning device is installed on the threaded hole A; the positioning device at least comprises a tubular device body with an external thread, a compression spring B and a clamping head or a steel ball; at least one clamping head or steel ball positioning hole is formed in the position, corresponding to the circumferential direction of the positioning device, of the connecting shaft to limit the door leaf hinge plate and the connecting shaft to freely rotate relative to each other or rotate in place for positioning; the door leaf hinge plate assembly is connected with the shaft hole A end of the double-shaft-hole rotating arm assembly through a connecting shaft, and a shaft hole B of the door leaf hinge plate assembly is movably connected with the door leaf connecting shaft in a running fit mode.

Description

Technical Field

[0001] The utility model relates to a hinge door leaf rotating arm structure, which belongs to a door hinge product component. Background Art

[0002] Hinges are a crucial component of door systems. The hinge arm is the primary component of these products. These hinges are typically concealed hinges, with a single pivot axis located within the door frame. Their simple structure makes them widely used in security doors. Single-axis hinges, especially concealed hinges, are limited in their opening angle and generally cannot open 180 degrees. To address the wide-angle opening requirements for doors, hinges employ multi-axis, multi-section hinge arms. However, these hinges, with their multiple axes and arms, exhibit a loose structure, requiring high manufacturing precision and high processing costs. They are also prone to sagging and noise during use, among other drawbacks. Furthermore, the hinge and door frame are difficult to adjust. Therefore, developing a hinge arm structure that can achieve a wide-angle opening angle of 180 degrees for concealed hinges, while also providing strong load-bearing capacity and preventing noise, is becoming increasingly important. Summary of the Invention

[0003] Based on the above-mentioned product defects and requirements, the technical problem to be solved by the present invention is to provide a hinged door leaf rotating arm structure, which can increase the opening angle of the hinge or hinge and realize the hinge or hinge opening 180 degrees.

[0004] The following is the technical solution adopted by this utility model:

[0005] A hinged door arm structure, which at least includes a door hinge assembly, a double-axis hole arm assembly, a door connecting shaft, a flat support and an elastic cylindrical pin. The door hinge assembly at least includes a door hinge and a positioning device; the door hinge includes an axis hole B and a mounting foot plate; the axis hole B of the door hinge is provided with at least one outward boss perpendicular to and intersecting the center line of the axis hole B and a threaded hole A, the threaded hole A passes through the wall of the axis hole B, and a positioning device is installed on the threaded hole A; the positioning device at least includes a tubular device body with an external thread, a compression spring B, a positioning head or a steel ball, and the connecting shaft is provided with at least one threaded spring at a circumferential position corresponding to the positioning device. There is a locking head or a steel ball positioning hole to limit the door hinge plate and the connecting shaft from rotating freely relative to each other or rotating into position; the door hinge plate assembly is connected to the axis hole A end of the double-axis hole swing arm assembly through the connecting shaft, and the axis hole B of the door hinge plate assembly is rotatably connected to the door connecting shaft, and an elastic cylindrical pin or a fixing screw is used to fix the door connecting shaft to the axis hole A of the double-axis hole swing arm; the planar support is arranged at the outer end of the axis hole A of the double-axis hole swing arm and is installed against the inner end face of the axis hole B of the door hinge plate.

[0006] Under normal circumstances, the door hinge plate will not rotate around the door shaft due to the locking force of the positioning device. The door hinge plate assembly drives the double-hole pivot arm assembly to rotate around the door frame connecting shaft through the door shaft, and the door frame connecting shaft is fixedly connected to the door frame. When the double-hole pivot arm assembly rotates around the door frame connecting shaft to the limit position, the vertical edge of the double-hole pivot arm contacts the edge of the door frame mounting hole. At the same time, the positioning device at the C-end of the double-hole pivot arm's axis hole locks the door frame connecting shaft to prevent reverse rotation. The door hinge plate overcomes the locking force of the positioning device and continues to rotate around the door shaft, increasing the hinge opening angle, even to a full 180-degree angle. Conversely, the door hinge plate rotates back, first around the door shaft, then to the locking force of the positioning device on the door hinge plate assembly, locking the door shaft and driving the double-hole pivot arm assembly to overcome the locking force of the positioning device at the C-end of the double-hole pivot arm's axis hole, restoring the hinged door hinge plate.

[0007] The dual-axis hole pivot arm assembly at least includes a dual-axis hole pivot arm and a positioning device; the dual-axis hole pivot arm includes an axis hole A, an axis hole C, and a connecting section between axis hole A and axis hole C; the connecting section is composed of, from the end of axis hole A, a connecting edge A of axis hole A or a rolled extension edge of axis hole A, a bent outer corner A, a connecting edge, a bent inner corner A, an arc surface A or a multi-fold surface A, a bent outer corner B, a vertical edge A, a bent outer corner C, a connecting edge B or a rolled extension edge of axis hole C, including a concave space groove formed. The concave space groove is designed to make room for the door frame when the door leaf is opened, increase the door leaf opening angle, and at the same time, accommodate the door leaf sealing strip, so that the door leaf sealing strip continuously improves the sealing performance between the door leaf and the door frame. The outer circle of the axis hole C is provided with at least one outward boss B perpendicular to and intersecting the center line of the axis hole C, and a threaded hole A. The threaded hole A passes through the hole wall of the axis hole C, and a positioning device is installed on the threaded hole A.

[0008] In addition, one end of the shaft hole A or shaft hole C can be a precision casting and the connection section with the shaft hole A or shaft hole B adopts a welded connection structure. The use of precision castings can simplify the processing of complex parts, and the use of modern laser welding technology can make the parts more refined and easy to polish.

[0009] The dual-axis hole rotating arm assembly at least includes a dual-axis hole rotating arm and a positioning device; the dual-axis hole rotating arm also includes an axis hole A, an axis hole C, and a connecting section a between the axis hole A and the axis hole C.

[0010] The connecting section a is composed of the connecting edge A of the shaft hole A or the rolled extension edge of the shaft hole A, the bent outer corner A, the connecting edge a, the bent inner corner A, the oblique straight edge, the bent outer corner Ba, the straight edge, the R outer corner, the vertical edge B, the bent outer corner C, the connecting edge B or the rolled extension edge of the shaft hole C, including the formed concave space groove a; the outer circle of the shaft hole C is provided with at least one outward boss B perpendicular to and intersecting the center line of the shaft hole C, and a threaded hole A; the threaded hole A passes through the hole wall of the shaft hole C, and a positioning device is installed on the threaded hole A.

[0011] The door hinge assembly can also be composed of a door hinge, a positioning device and an adjustment foot; the door hinge includes an axis hole B and a mounting foot; the outer circle of the axis hole B of the door hinge is provided with at least one outward boss and a threaded hole A that are perpendicular to and intersect the center line of the axis hole B, the threaded hole A passes through the wall of the axis hole B, and a positioning device is installed on the threaded hole A.

[0012] At least one set of longitudinal or transverse elongated mounting holes A or a plurality of circular mounting holes B and a plurality of threaded holes B are provided on the mounting foot plate of the door hinge plate.

[0013] Furthermore: the mounting foot plate of the door hinge plate is provided with at least one group of longitudinal or transverse elongated mounting holes A or a plurality of circular mounting holes B and at least two threaded holes C for mounting the adjusting legs.

[0014] Furthermore: the plane support member includes a plane bearing structure of a sleeve plus a plane gasket or two plane gaskets with a copper gasket sandwiched between them, or a steel ball plane bearing or a simple plane washer.

[0015] In summary, the beneficial technical effects of this hinged door leaf arm structure are:

[0016] (1) It is a dual-axis hole structure, which allows the hinge to open at a wider angle, even 180 degrees. If the hinge opening angle through the first axis (door frame connection axis) is not enough, the second axis (door leaf connection axis) can compensate for the opening angle.

[0017] (2): Due to the double-axis hole rotating arm, a concave space is designed to make room for the door frame when the door leaf is opened to increase the opening angle of the door leaf. At the same time, it can accommodate the door leaf sealing strip, so that the door leaf sealing strip can continuously improve the sealing performance between the door leaf and the door frame.

[0018] (3): Compared with the hinge of multi-axis and multi-rotating arms, it has strong load-bearing capacity, is not prone to abnormal noise, and has low manufacturing cost and high cost performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional illustration of the hinge arm structure of the present invention.

[0020] Figure 2 This is a front perspective exploded view of the hinge arm structure of the present invention.

[0021] Figure 3 This is a back perspective exploded view of the hinge arm structure of the present invention.

[0022] Figure 4 This is a three-dimensional illustration of the double-axis hole rotating arm structure.

[0023] Figure 5 This is a plan view of the structure of the double-axis hole arm assembly (1).

[0024] Figure 6 This is a plan view of the structure of the double-axis hole arm assembly (2).

[0025] Figure 7 This is a three-dimensional illustration of the technical features of the fan hinge plate (1).

[0026] Figure 8 This is a three-dimensional illustration of the technical features of the fan hinge assembly.

[0027] Figure 9 This is a three-dimensional illustration of the technical features of the fan hinge plate (2).

[0028] Figure 10 This is a diagram illustrating the structure of the positioning device.

[0029] Figure 11 This is a schematic diagram of the connection between the door hinge assembly, the double-axis hole arm assembly, the door leaf and the door frame.

[0030] Figure 12 Schematic diagram of the limit state of the hinged door leaf's swing arm opening around the door frame connection axis.

[0031] Figure 13 Schematic diagram of the limit state of the hinged door leaf's swing arm opening around the door leaf connecting axis. DETAILED DESCRIPTION

[0032] Refer to the attached Figure 1 -picture 13, the present invention is further described in conjunction with an embodiment: a hinged door arm structure, which at least includes a door hinge assembly 1, a double-axis hole arm assembly 2, a door connecting shaft 3, a flat support 4 and an elastic cylindrical pin 5. The door hinge assembly 1 at least includes a door hinge plate 11 and a positioning device 8; the door hinge plate 11 includes an axis hole B111 and a mounting foot plate 112; the axis hole B111 of the door hinge plate 11 is provided with at least one outward boss 6 perpendicular to and intersecting the center line of the axis hole B111 and a threaded hole A7 on the outer circle; the threaded hole A7 passes through the wall of the axis hole B111, and a positioning device 8 is installed on the threaded hole A7; the positioning device 8 at least includes an externally threaded tubular device body 81, a compression spring B82, a positioning head or a steel ball 83, and the door connecting shaft 3 is at least circumferentially positioned at the corresponding positioning device 8. A positioning hole 31 with a locking head or a steel ball 83 is provided to limit the door hinge plate 11 and the door connecting shaft 3 to rotate freely relative to each other or rotate into position; the door hinge plate assembly 1 is connected to the axis hole A211 end of the double-axis hole pivot arm assembly 2 through the door connecting shaft 3, and the axis hole B111 of the door hinge plate assembly 1 is rotatably connected with the door connecting shaft 3, and an elastic cylindrical pin 5 or a fixing screw is used to make the door connecting shaft 3 and the axis hole A211 of the double-axis hole pivot arm 21 rigidly fixed; the planar support member 4 is arranged at the outer end of the axis hole A211 of the double-axis hole pivot arm 21 and is installed against the inner end face of the axis hole B111 of the door hinge plate 11.

[0033] The double-axis hole rotating arm assembly 2 at least includes a double-axis hole rotating arm 21 and a positioning device 8; the double-axis hole rotating arm 21 includes an axis hole A211, an axis hole C212 and a connecting section 213 between the axis hole A211 and the axis hole C212; the connecting section 213 is sequentially formed from the end of the axis hole A211 by the connecting edge A of the axis hole A211 or the curved extension edge 214 of the axis hole A211, the bent outer corner A215, the connecting edge 216, the bent inner corner A2 17. The curved surface A or multi-fold surface A218, the bent outer corner B219, the vertical edge A220, the bent outer corner C221, the connecting edge B or the curved extended edge 222 of the shaft hole C212, and the concave space groove 223 formed therein. The concave space groove 223 is designed to make room for the door frame when the door leaf is opened, increase the door opening angle, and also accommodate the door leaf sealing strip, which continuously improves the sealing performance between the door leaf and the door frame. The outer circumference of the shaft hole C212 is provided with at least one outward boss B224 perpendicular to and intersecting the centerline of the shaft hole C212, and a threaded hole A7. The threaded hole A7 extends through the wall of the shaft hole C212, and a positioning device 8 is mounted on the threaded hole A7.

[0034] The dual-axis hole rotating arm assembly 2 at least includes a dual-axis hole rotating arm 21 and a positioning device 8; the dual-axis hole rotating arm 21 also includes an axis hole A211, an axis hole C212 and a connecting section a213a between the axis hole A211 and the axis hole C212.

[0035] The connecting section a213a is composed of the connecting edge A of the shaft hole A211 or the rolled extension edge 214 of the shaft hole A211, the bent outer corner A215, the connecting edge a216a, the bent inner corner A217, the oblique straight edge 218a, the bent outer corner Ba219a, the straight edge 220a, the R outer corner 221a, the vertical edge B225, the bent outer corner C221, the connecting edge B or the rolled extension edge 222 of the shaft hole C212, including the formed concave space groove a223a; the outer circle of the shaft hole C212 is provided with at least one outward boss B224 perpendicular to and intersecting the center line of the shaft hole C212, and a threaded hole A7, the threaded hole A7 passes through the wall of the shaft hole C212, and a positioning device 8 is installed on the threaded hole A7.

[0036] The door hinge assembly 1 can also be composed of a door hinge 11, a positioning device 8 and an adjustment foot 9; the door hinge 11 includes an axis hole B111 and a mounting foot 112; the outer circle of the axis hole B111 of the door hinge 11 is provided with at least one outward boss 6 and a threaded hole A7 that is perpendicular to and intersects the center line of the axis hole B111, and the threaded hole A7 passes through the wall of the axis hole B111, and a positioning device 8 is installed on the threaded hole A7.

[0037] The mounting foot plate 112 of the door hinge plate 11 is provided with at least one group of longitudinal or transverse elongated mounting holes A113 or a plurality of circular mounting holes B115 and a plurality of threaded holes B114.

[0038] Preferably, the mounting foot plate 112 of the door hinge plate 11 is provided with at least one group of longitudinal or transverse elongated mounting holes A113 or a plurality of circular mounting holes B115 and at least two threaded holes C116 for mounting the adjusting feet 9 .

[0039] Preferably, the planar support member 4 comprises a planar bearing structure of a sleeve plus a planar gasket or two planar gaskets sandwiching a copper gasket, or a steel ball planar bearing or a simple planar gasket.

[0040] Finally, it should be noted that the above examples are merely preferred embodiments of the present invention. Obviously, the present invention is not limited to the above examples and is subject to numerous variations. All variations of structure, principle, and shape (specifically, the shape of the door hinge, door frame fixing base, and rotating arm) that can be directly derived or imagined by a person skilled in the art from the disclosure of the present invention are considered to be within the scope of protection of the present invention.

Claims

1. A hinged door leaf swing arm structure, comprising at least a door leaf hinge plate assembly (1), a double-axis hole swing arm assembly (2), a door leaf connecting shaft (3), a planar support member (4) and an elastic cylindrical pin (5), characterized in that: The door hinge assembly (1) comprises at least a door hinge (11) and a positioning device (8); the door hinge (11) comprises an axis hole B (111) and a mounting foot plate (112); the axis hole B (111) of the door hinge (11) is provided with at least one outward boss (6) perpendicular to and intersecting the center line of the axis hole B (111) and a threaded hole A (7) on the outer circle; the threaded hole A (7) passes through the hole wall of the axis hole B (111); a positioning device (8) is mounted on the threaded hole A (7); the positioning device (8) comprises at least an externally threaded tubular device body (81), a compression spring B (82), a positioning head or a steel ball (83); the door connecting shaft (3) is located at a circumferential position corresponding to the positioning device (8) to At least one positioning hole (31) of a locking head or a steel ball (83) is provided to limit the relative free rotation of the door hinge plate (11) and the door connecting shaft (3) or to rotate to a fixed position; the door hinge plate assembly (1) is connected to the end of the axis hole A (211) of the double-axis hole rotating arm assembly (2) through the door connecting shaft (3); the axis hole B (111) of the door hinge plate assembly (1) is rotatably connected to the door connecting shaft (3), and an elastic cylindrical pin (5) or a fixing screw is used to fix the door connecting shaft (3) to the axis hole A (211) of the double-axis hole rotating arm (21); the plane support member (4) is provided at the outer end of the axis hole A (211) of the double-axis hole rotating arm (21) and is installed against the inner end surface of the axis hole B (111) of the door hinge plate (11).

2. The hinged door leaf rotating arm structure according to claim 1, characterized in that: The double-axis hole rotating arm assembly (2) at least comprises a double-axis hole rotating arm (21) and a positioning device (8); the double-axis hole rotating arm (21) comprises an axis hole A (211), an axis hole C (212) and a connecting section (213) between the axis hole A (211) and the axis hole C (212); the connecting section (213) is sequentially formed from the end of the axis hole A (211) by the connecting edge A of the axis hole A (211) or the rolled extension edge (214) of the axis hole A (211), the bent outer corner A (215), the connecting edge (216), the bent inner corner A (217), the arc surface A or a multi-fold surface A (218), a bent outer corner B (219), a vertical edge A (220), a bent outer corner C (221), a connecting edge B or a rolled extension edge (222) of the shaft hole C (212), including a concave space groove (223); the outer circle of the shaft hole C (212) is provided with at least one outward boss B (224) perpendicular to and intersecting the center line of the shaft hole C (212), and a threaded hole A (7), the threaded hole A (7) passes through the hole wall of the shaft hole C (212), and a positioning device (8) is installed on the threaded hole A (7).

3. The hinge door leaf rotating arm structure according to claim 1, characterized in that: The mounting foot plate (112) of the door hinge plate (11) is provided with at least one group of longitudinal or transverse elongated mounting holes A (113) or a plurality of circular mounting holes B (115) and a plurality of threaded holes B (114).

4. The hinge door leaf rotating arm structure according to claim 1, characterized in that: The plane support (4) comprises a sleeve plus a plane washer or a plane bearing structure with a copper washer sandwiched between two plane washers, or a steel ball plane bearing or a simple plane washer.

5. A hinge door leaf rotating arm structure according to any one of claims 1, 3, and 4, characterized in that: The dual-axis hole rotating arm assembly (2) comprises at least a dual-axis hole rotating arm (21) and a positioning device (8); the dual-axis hole rotating arm (21) comprises an axis hole A (211), an axis hole C (212), and a connecting section a (213a) between the axis hole A (211) and the axis hole C (212).

6. The hinge door leaf rotating arm structure according to claim 5, characterized in that: The connecting section a (213a) is sequentially formed from the end of the shaft hole A (211) by the connecting edge A of the shaft hole A (211) or the rolled extension edge (214) of the shaft hole A (211), the bent outer corner A (215), the connecting edge (216), the bent inner corner A (217), the oblique straight edge (218a), the bent outer corner Ba (219a), the straight edge (220a), the R outer corner (221a), the vertical edge B (225), the bent outer corner C (221), a connecting edge B or a rolled extension edge (222) of the shaft hole C (212), including a concave space groove a (223a); the outer circle of the shaft hole C (212) is provided with at least one outward boss B (224) perpendicular to and intersecting the center line of the shaft hole C (212), and a threaded hole A (7), the threaded hole A (7) passes through the hole wall of the shaft hole C (212), and a positioning device (8) is installed on the threaded hole A (7).

7. A hinge door leaf rotating arm structure according to any one of claims 1, 2, and 4, characterized in that: The door hinge assembly (1) comprises a door hinge (11), a positioning device (8) and an adjusting foot (9); the door hinge (11) comprises an axis hole B (111) and a mounting foot (112); the axis hole B (111) of the door hinge (11) is provided with at least one outward boss (6) perpendicular to and intersecting the center line of the axis hole B (111) and a threaded hole A (7) on the outer circle thereof; the threaded hole A (7) passes through the wall of the axis hole B (111), and the positioning device (8) is mounted on the threaded hole A (7).

8. The hinge door leaf rotating arm structure according to claim 7, characterized in that: The mounting foot plate (112) is provided with at least a plurality of longitudinal or transverse elongated mounting holes A (113), a plurality of circular mounting holes B (115), and at least two threaded holes C (116) for mounting the adjustment legs (9).

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