Free door hinge

Abstract

The utility model relates to a free door hinge, which is characterized in that a notch is arranged at the top of a door plate, a front housing and a rear housing are fixed on the door plate corresponding to the outer side of the notch, and a first longitudinal shaft is fixed on a top plate of an upper bracket and downwards penetrates through a central hole of a turntable base; a transverse shaft is fixed on the first longitudinal shaft below the left side plate and the right side plate, and the inner end and the outer end of the transverse shaft are respectively provided with a roller; the first longitudinal shaft is sleeved with the compression spring, the top end of the compression spring abuts against the upper support top plate, and the bottom end of the compression spring abuts against the top face of the supporting plate base. A base is fixed to the bottom of the door plate, a second longitudinal shaft is fixed to a bottom plate of the lower support, the second longitudinal shaft and the first longitudinal shaft are eccentrically arranged, and the base is rotationally connected with the second longitudinal shaft. After the device is used, the back-and-forth shaking times of the door plate during door closing can be obviously reduced, the door plate can be quickly returned, and the door closing time is short.

Description

Technical Field

[0001] The utility model relates to a hinge structure used for an anti-collision door, and specifically discloses a free door hinge. Background Art

[0002] In the prior art, there is a hinge structure for anti-collision doors, which mainly includes a door panel, an upper bracket, a cover, a first longitudinal axis, a transverse axis, a roller, a turntable, a lower bracket, a base, a second longitudinal axis, etc. The defects of this hinge structure are: when closing the door, the door panel swings back and forth many times, and it takes a long time to close the door, resulting in a difference in the position of the two door panels. Summary of the invention

[0003] The utility model aims to overcome the deficiencies in the prior art and to provide a free door hinge which can reduce the number of door panels shaking back and forth when closing the door and shorten the time for closing the door, and can return the door panel to its original position.

[0004] According to the technical solution provided by the utility model, the free door hinge comprises a door panel, an upper bracket, a cover, a first longitudinal axis, a transverse axis, a roller, a compression spring, a turntable, a lower bracket, a base and a second longitudinal axis;

[0005] The upper bracket includes an upper bracket top plate and an upper bracket side plate which are perpendicular to each other and fixed together, the upper bracket top plate is fixed to the top surface of the door frame, and the upper bracket side plate is fixed to the left side surface of the door frame; the lower bracket includes a lower bracket bottom plate and a lower bracket side plate which are perpendicular to each other and fixed together, the lower bracket bottom plate is fixed to the bottom surface of the door frame, and the lower bracket side plate is fixed to the left side surface of the door frame;

[0006] The turntable comprises a left side plate, a turntable base and a right side plate fixed together, the turntable base is a vertical tubular structure, and the left side plate and the right side plate are both arc-shaped plates; in the direction from left to right, the bottom surface of the left side plate is arc-shaped and warped upward; in the direction from right to left, the bottom surface of the right side plate is arc-shaped and warped upward;

[0007] A notch is provided on the top of the door panel, and a front cover and a rear cover are fixed on the door panel corresponding to the outer side of the notch, and the turntable is installed between the front and rear cover; a first longitudinal axis is fixed on the top plate of the upper bracket, and the axis of the first longitudinal axis is parallel to the door panel, and the first longitudinal axis passes downward through the center hole of the turntable base; a transverse axis is fixed on the first longitudinal axis located below the left and right panels, and the axis of the transverse axis is perpendicular to the door panel, and a roller is installed at the front end and the rear end of the transverse axis respectively;

[0008] The compression spring is sleeved outside the first longitudinal axis, the top end of the compression spring abuts against the top plate of the upper bracket, and the bottom end of the compression spring abuts against the top surface of the turntable base;

[0009] A base is fixed on the bottom of the door panel, a second longitudinal axis is fixed on the bottom plate of the lower bracket, the second longitudinal axis is eccentrically arranged with respect to the first longitudinal axis, and the base is rotationally connected with the second longitudinal axis.

[0010] Preferably, the first longitudinal axis is located to the right of the second longitudinal axis.

[0011] After the utility model is used, the number of times the door panel shakes back and forth when closing the door can be significantly reduced, so that the door panel can be quickly returned to the correct position, and the time consumed for closing the door is shorter. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a three-dimensional diagram of the turntable in the utility model. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0015] A free door hinge, such as Figure 1 and Figure 2 As shown, it includes a door panel 1, an upper bracket 2, a cover 3, a first longitudinal axis 4, a transverse axis 5, a roller 6, a compression spring 7, a turntable 8, a lower bracket 9, a base 10 and a second longitudinal axis 11;

[0016] The upper bracket 2 includes an upper bracket top plate and an upper bracket side plate that are perpendicular to each other and fixed together, the upper bracket top plate is fixed to the top surface of the door frame 12, and the upper bracket side plate is fixed to the left side surface of the door frame 12; the lower bracket 9 includes a lower bracket bottom plate and a lower bracket side plate that are perpendicular to each other and fixed together, the lower bracket bottom plate is fixed to the bottom surface of the door frame 12, and the lower bracket side plate is fixed to the left side surface of the door frame 12;

[0017] The turntable 8 comprises a left side plate 8.1, a turntable base 8.2 and a right side plate 8.3 fixed together, the turntable base 8.2 is a vertical tubular structure, and the left side plate 8.1 and the right side plate 8.3 are both arc-shaped plates; in the direction from left to right, the bottom surface of the left side plate 8.1 is arc-shaped and warped upward; in the direction from right to left, the bottom surface of the right side plate 8.3 is arc-shaped and warped upward;

[0018] A notch 1.1 is provided at the top of the door panel 1, and a front cover 3 and a rear cover 3 are fixed on the door panel 1 corresponding to the outer side of the notch 1.1, and the turntable 8 is installed between the front and rear cover 3; a first longitudinal axis 4 is fixed on the top plate of the upper bracket, and the axis of the first longitudinal axis 4 is parallel to the door panel 1, and the first longitudinal axis 4 passes downward through the center hole of the turntable base 8.2, and a transverse axis 5 is fixed on the first longitudinal axis 4 located below the left side plate 8.1 and the right side plate 8.3, and the axis of the transverse axis 5 is perpendicular to the door panel 1, and a roller 6 is installed at the front end and the rear end of the transverse axis 5;

[0019] The compression spring 7 is sleeved on the outside of the first longitudinal axis 4, the top end of the compression spring 7 abuts against the top plate of the upper bracket, and the bottom end of the compression spring 7 abuts against the top surface of the turntable base 8.2;

[0020] A base 10 is fixed on the bottom of the door panel 1 , and a second longitudinal axis 11 is fixed on the bottom plate of the lower bracket. The second longitudinal axis 11 is eccentrically arranged with respect to the first longitudinal axis 4 , and the base 10 is rotationally connected with the second longitudinal axis 11 .

[0021] The first longitudinal axis 4 is located on the right side of the second longitudinal axis 11 .

[0022] The working principle of the utility model is as follows:

[0023] When opening the door, the door panel 1 is rotated around the second longitudinal axis 11 by an external force and the door panel 1 is opened. Since the second longitudinal axis 11 is eccentrically arranged with the first longitudinal axis 4, the turntable 8 starts to rotate. Since the bottom surface of the left side panel 8.1 is curved upward from left to right, and the bottom surface of the right side panel 8.3 is curved upward from right to left, the compression spring 7 is compressed under the cooperation of the roller 6 and the curved bottom surface of the left side panel 8.1 and the curved bottom surface of the right side panel 8.3. When closing the door, the external force for opening the door is removed. Under the elastic force of the compression spring 7 and the cooperation of the roller 6 and the curved bottom surface of the left side panel 8.1 and the curved bottom surface of the right side panel 8.3, the turntable 8 rotates rapidly, thereby reducing the number of times the door panel 1 shakes back and forth when closing the door, so that the door panel 1 can quickly return to the center position, and the time taken to close the door is short.

[0024] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A free door hinge, characterized by: It comprises a door panel (1), an upper bracket (2), a cover shell (3), a first longitudinal axis (4), a transverse axis (5), a roller (6), a compression spring (7), a turntable (8), a lower bracket (9), a base (10) and a second longitudinal axis (11); The upper bracket (2) comprises an upper bracket top plate and an upper bracket side plate which are perpendicular to each other and fixed together, the upper bracket top plate is fixed to the top surface of the door frame (12), and the upper bracket side plate is fixed to the left side surface of the door frame (12); the lower bracket (9) comprises a lower bracket bottom plate and a lower bracket side plate which are perpendicular to each other and fixed together, the lower bracket bottom plate is fixed to the bottom surface of the door frame (12), and the lower bracket side plate is fixed to the left side surface of the door frame (12); The turntable (8) comprises a left side plate (8.1), a turntable base (8.2) and a right side plate (8.3) fixed together; the turntable base (8.2) is a vertical tubular structure; the left side plate (8.1) and the right side plate (8.3) are both arc-shaped plates; in the direction from left to right, the bottom surface of the left side plate (8.1) is arc-shaped and warps upwards; in the direction from right to left, the bottom surface of the right side plate (8.3) is arc-shaped and warps upwards; A notch (1.1) is provided at the top of the door panel (1), and a front cover (3) and a rear cover (3) are fixed on the door panel (1) outside the notch (1.1), and the turntable (8) is installed between the front and rear cover (3); a first longitudinal axis (4) is fixed on the top plate of the upper bracket, the axis of the first longitudinal axis (4) is parallel to the door panel (1), and the first longitudinal axis (4) passes downward through the center hole of the turntable base (8.2); a transverse axis (5) is fixed on the first longitudinal axis (4) located below the left side panel (8.1) and the right side panel (8.3), and the axis of the transverse axis (5) is perpendicular to the door panel (1), and a roller (6) is installed at the front end and the rear end of the transverse axis (5); The compression spring (7) is sleeved on the outside of the first longitudinal axis (4), the top end of the compression spring (7) abuts against the top plate of the upper bracket, and the bottom end of the compression spring (7) abuts against the top surface of the turntable base (8.2); A base (10) is fixed on the bottom of the door panel (1), a second longitudinal axis (11) is fixed on the bottom plate of the lower bracket, the second longitudinal axis (11) is eccentrically arranged with respect to the first longitudinal axis (4), and the base (10) is rotatably connected to the second longitudinal axis (11).

2. The free door hinge according to claim 1, characterized in that: The first longitudinal axis (4) is located on the right side of the second longitudinal axis (11).

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