A hinge with a large load-bearing gear structure

Abstract

The present invention discloses a large-load-bearing gear structure hinge, which includes a bottom plate, a first connecting rod with two ends divided into a first end and a second end, a third connecting rod with two ends divided into a fifth end and a sixth end, and a connecting piece. The first end and the fifth end are hinged to the bottom plate at intervals along the extension direction of the bottom plate, and the second end and the sixth end are hinged to the connecting piece along the extension direction of the connecting piece; an arc-shaped gear is arranged on the end face of the first end, and a limit gear meshing with the arc-shaped gear is rotatably arranged on the bottom plate. The arc-shaped gear meshes with the limit gear to limit the further relative rotation of the first connecting rod with respect to the bottom plate, limit the maximum opening angle of the hinge, and thus play a role in positioning the maximum opening angle.

Description

Technical Field

[0001] The present invention relates to the technical field of hinges, and particularly relates to a hinge with a large load-bearing gear structure. Background Art

[0002] A hinge is a commonly used door and window hardware fitting, and its main function is to install the door and window on the door and window frame. Existing hinges generally use four support rods, with a relatively complex force structure and not very smooth movement. As a load-bearing component for opening and closing aluminum alloy doors and windows, the hinge also has problems such as poor positioning after the maximum opening angle, easy damage, and insufficient locking force when closing. Summary of the Invention

[0003] The purpose of the present invention is to provide a hinge with a large load-bearing gear structure to solve one or more technical problems existing in the prior art, and at least provide a beneficial alternative or create conditions.

[0004] The technical solution adopted to solve the above technical problems:

[0005] The present invention provides a hinge with a large load-bearing gear structure, including a bottom plate, a first connecting rod with two ends divided into a first end and a second end, a third connecting rod with two ends divided into a fifth end and a sixth end, and a connecting piece. The first end and the fifth end are spaced and hinged to the bottom plate along the extension direction of the bottom plate, and the second end and the sixth end are spaced and hinged to the connecting piece along the extension direction of the connecting piece; an arc-shaped gear is provided on the end face of the first end, and a limiting gear meshing with the arc-shaped gear is rotatably provided on the bottom plate.

[0006] The beneficial effect of the present invention is:

[0007] The arc-shaped gear meshes with the limiting gear, restricting the further relative rotation of the first connecting rod with respect to the bottom plate, restricting the maximum opening angle of the hinge, and thus achieving positioning at the maximum opening angle.

[0008] As a further improvement of the above technical solution, the bottom plate is further provided with an arc-shaped groove that penetrates up and down. The arc-shaped groove is arc-shaped with the hinge point between the bottom plate and the first end as the center of the circle. The first connecting rod is provided with a first connecting piece, and the first connecting piece is slidably arranged in the arc-shaped groove.

[0009] The arc-shaped groove defines the movement track of the first connecting piece, and can limit the rotation angle of the first connecting rod around the bottom plate. It cooperates with the gear structure to form a double-positioning insurance for the maximum opening angle of the hinge, and at the same time increases the connection points between the main load-bearing first connecting rod and the bottom plate of this hinge, improving the strength of the hinge.

[0010] As a further improvement of the above technical solution, a tooth groove is provided on the side of the third connecting rod close to the limiting gear. When the hinge is closed, the tooth groove meshes with the limiting gear, the third connecting rod presses against the limiting gear, and the limiting gear presses against the arc-shaped gear in the reverse direction to prevent the hinge from rotating and opening.

[0011] And at the moment when the hinge is opened, the connecting piece acts on the second end and the third link rotates, and at the same time, the tooth groove acts on the limit gear, and the limit gear acts on the arc gear, that is, the first end, playing a linkage role, and the hinge is not easily damaged; at the moment when the hinge is closed, the tooth groove meshes with the limit gear, the third link presses against the limit gear, and the limit gear presses against the arc gear in the reverse direction. The first end of the first link, which is the main load-bearing part, receives the locking force of the limit gear, and at the same time, the second end of the first link receives the locking force of the connecting piece. The hinge is not easily damaged and can prevent the hinge from rotating and opening.

[0012] As a further improvement of the above technical solution, the third link is provided with a clamping step, and the tooth groove is arranged on the step surface of the clamping step. When closed, the third link, the connecting piece and the bottom plate are rotated to the same straight line, reducing the overall width of the hinge.

[0013] As a further improvement of the above technical solution, the large load-bearing gear structure hinge further includes a second link with two ends divided into a third end and a fourth end. The third end is hinged to the bottom plate, and the third end is arranged between the first end and the fifth end. The fourth end is hinged to the third link, and the fourth end is arranged between the fifth end and the sixth end, bearing the gravity exerted by the connecting piece on the third link to play an auxiliary load-bearing role.

[0014] As a further improvement of the above technical solution, the first link is bent in the opening direction of the large load-bearing gear structure hinge. When closed, the third link, the connecting piece and the bottom plate are rotated to the same straight line, reducing the overall width of the hinge.

[0015] As a further improvement of the above technical solution, the bottom plate is provided with a first protrusion and a second protrusion at intervals along the extension direction of the bottom plate. The first end is hinged to the first protrusion, and the fifth end is hinged to the second protrusion.

[0016] When closed, when the third link, the connecting piece and the bottom plate are rotated to the same straight line, the contact areas between the first link and the third link and the bottom plate are reduced respectively, thereby reducing the sliding friction and making the hinge operate more smoothly.

[0017] As a further improvement of the above technical solution, the large load-bearing gear structure hinge further includes a second link with two ends divided into a third end and a fourth end. The third end is hinged to the bottom plate, and the third end is hinged between the first protrusion and the second protrusion. The fourth end is hinged to the third link, and the fourth end is arranged between the fifth end and the sixth end.

[0018] The second link is disposed between the third link and the bottom plate, and is disposed between the first protrusion and the second protrusion. The height of the protrusion can provide sufficient space for the second link, and thus the thickness of the second link can be increased to enhance the structural strength of the second link, and finally improve the load-bearing strength of the entire hinge.

[0019] As a further improvement of the above technical solution, the two ends of the connecting piece are respectively a first connecting end and a second connecting end. The first connecting end is provided with a bent portion, and the bent portion is provided with a fixing hole.

[0020] The bent portion is wrapped around the connection between the bottom and the side of the fan portion and then fixed to the side. In this way, during installation, the connecting piece can be fixed relative to the fan portion by fixing structures such as screwing to prevent the connecting piece from falling off the fan portion; and rapid positioning can also be achieved through the cooperation between the bent portion and the top corner of the fan portion, that is, the connection between the bottom and the side.

[0021] As a further improvement of the above technical solution, gaskets are provided at the hinge joints between the bottom plate, the first link, the third link, and the connecting piece to avoid direct contact and friction between the bottom plate, the first link, the third link, and the connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the drawings and embodiments;

[0023] Figure 1 FIG. is an exploded structural schematic diagram of an embodiment of a large load-bearing gear structure hinge provided by the present invention;

[0024] Figure 2 FIG. is a schematic diagram of the hinge opening structure of an embodiment of a large load-bearing gear structure hinge provided by the present invention;

[0025] Figure 3 FIG. is a schematic diagram of the hinge opening structure of an embodiment of a large load-bearing gear structure hinge provided by the present invention;

[0026] Figure 4 FIG. is a schematic diagram of the hinge closing structure of an embodiment of a large load-bearing gear structure hinge provided by the present invention;

[0027] Figure 5 FIG. is a top view of the hinge closing of an embodiment of a large load-bearing gear structure hinge provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The drawings are used to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be construed as a limitation on the protection scope of the present invention.

[0029] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present invention.

[0030] In the description of the present invention, if there are vocabulary descriptions such as "several", its meaning is one or more, and the meaning of multiple is more than two. Understanding such as greater than, less than, exceeding, etc. does not include the present number, and understanding such as above, below, within, etc. includes the present number.

[0031] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

[0032] Referring to Figures 1 to 5 , the following embodiments are made for a large load-bearing gear structure hinge of the present invention:

[0033] In some embodiments, the large load-bearing gear structure hinge is arranged between the frame part and the fan part for realizing the opening and locking of the fan part relative to the frame part. The large load-bearing gear structure hinge includes a bottom plate 100, a first connecting rod 200 with two ends divided into a first end and a second end, a third connecting rod 400 with two ends divided into a fifth end and a sixth end, and a connecting piece 500. The bottom plate 100 is fixedly arranged on the frame part, the connecting piece 500 is arranged on the fan part, the first end and the fifth end are spaced and hinged to the bottom plate 100 along the extension direction of the bottom plate 100, and the second end and the sixth end are spaced and hinged to the connecting piece 500 along the extension direction of the connecting piece 500. When an external force acts on the fan part, it drives the connecting piece 500 to open, close and lock relative to the bottom plate 100.

[0034] At the same time, an arc gear 220 is arranged on the end face of the first end, and a limit gear 120 meshing with the arc gear 220 is rotatably arranged on the bottom plate 100. The arc gear 220 meshes with the limit gear 120 to limit the further relative rotation of the first connecting rod 200 relative to the bottom plate 100, limit the maximum opening angle of the hinge, and thus play a role in positioning the maximum opening angle.

[0035] Furthermore, the bottom plate 100 is further provided with an arc-shaped groove 110 that penetrates up and down. The arc-shaped groove 110 is arc-shaped with the hinge point of the bottom plate 100 and the first end as the center of the circle. The first connecting rod 200 is provided with a first connecting member 210, and the first connecting member 210 is slidably arranged in the arc-shaped groove 110. The first connecting member 210 can be a rivet or a sliding block, etc.

[0036] The arc-shaped groove 110 defines the movement trajectory of the first connecting member 210, and can define the rotation angle of the first connecting rod 200 around the bottom plate 100. It cooperates with the gear structure to form a double-position insurance for the maximum opening angle of the hinge. At the same time, it increases the connection point between the main load-bearing first connecting rod 200 and the bottom plate 100 of this hinge, improving the strength of the hinge.

[0037] Further, when the fan part drives the connecting piece 500 to open or close, if the thrust is too large, it is easy to cause damage. Therefore, a tooth groove 410 is provided on the side of the third connecting rod 400 close to the limit gear 120. When the hinge is closed, the tooth groove 410 meshes with the limit gear 120, and the third connecting rod 400 presses against the limit gear 120, and the limit gear 120 presses against the arc-shaped gear 220 in the reverse direction to prevent the hinge from rotating and opening.

[0038] And at the moment when the hinge is opened, the connecting piece 500 acts on the second end and the third connecting rod 400 rotates. At the same time, the tooth groove 410 acts on the limit gear 120, and the limit gear 120 acts on the arc-shaped gear 220, that is, the first end, playing a linkage role, and the hinge is not easily damaged; at the moment when the hinge is closed, the tooth groove 410 meshes with the limit gear 120, the third connecting rod 400 presses against the limit gear 120, and the limit gear 120 presses against the arc-shaped gear 220 in the reverse direction. The first end of the first connecting rod 200 as the main load-bearing member receives the locking force of the limit gear 120, and at the same time, the second end of the first connecting rod 200 receives the locking force of the connecting piece 500. The hinge is not easily damaged and can prevent the hinge from rotating and opening.

[0039] Further, the third connecting rod 400 is provided with a clamping step 420, and the tooth groove 410 is arranged on the step surface of the clamping step 420. When closed, the third connecting rod 400, the connecting piece 500, and the bottom plate 100 are rotated to the same straight line, reducing the overall width of the hinge. At the same time, when the first connecting rod 200 is bent in the direction of opening the large-load-bearing gear structure hinge, when closed, the third connecting rod 400, the connecting piece 500, and the bottom plate 100 are rotated to the same straight line, which can also reduce the overall width of the hinge.

[0040] In order to further increase the load-bearing capacity of the hinge of the large load-bearing gear structure, the hinge of the large load-bearing gear structure further includes a second connecting rod 300 with two ends divided into a third end and a fourth end. The third end is hinged to the bottom plate 100 and is arranged between the first end and the fifth end. The fourth end is hinged to the third connecting rod 400 and is arranged between the fifth end and the sixth end, bearing the gravity exerted by the connecting piece 500 on the third connecting rod 400 to play an auxiliary load-bearing role and strengthening the bearing capacity of the hinge of the large load-bearing gear structure for large and heavy windows. Then, there are two connection points between the main load-bearing first connecting rod 200 and the bottom plate 100 of this hinge, two connection points between the third connecting rod 400 and the bottom plate 100, and two connection points between the connecting piece 500 and the bottom plate 100, forming a movable five-link hinge structure.

[0041] In addition, a first protrusion 103 and a second protrusion 104 are arranged at intervals along the extending direction of the bottom plate 100. The first end is hinged to the first protrusion 103, and the fifth end is hinged to the second protrusion 104. When closed, when the third connecting rod 400, the connecting piece 500, and the bottom plate 100 are rotated to be on the same straight line, the contact areas between the first connecting rod 200 and the third connecting rod 400 and the bottom plate 100 respectively are reduced, thereby reducing sliding friction and making the hinge operate more smoothly.

[0042] When the second connecting rod 300 is provided, the second connecting rod 300 is arranged between the third connecting rod 400 and the bottom plate 100 and is arranged between the first protrusion 103 and the second protrusion 104. The height of the protrusion can provide enough space for the second connecting rod 300, and then the thickness of the second connecting rod 300 can be increased to increase the structural strength of the second connecting rod 300, and finally the load-bearing strength of the entire hinge is improved.

[0043] Furthermore, the two ends of the connecting piece 500 are divided into a first connecting end and a second connecting end. The first connecting end is provided with a bending part 510, and the bending part 510 is provided with a fixing hole 511. The bending part 510 wraps around the connection between the bottom and the side of the fan part and is fixed to the side. In this way, during installation, the connecting piece 500 can be fixed to the fan part relative to the connecting piece 500 and the bending part 510 through fixing structures such as screwing, preventing the connecting piece 500 from falling off the fan part; and it can also be quickly positioned through the cooperation between the bending part 510 and the top angle of the fan part, that is, the connection between the bottom and the side.

[0044] Furthermore, gaskets 700 are arranged at the hinge joints between the bottom plate 100, the first connecting rod 200, the third connecting rod 400, and the connecting piece 500 to avoid direct contact and friction between the bottom plate 100, the first connecting rod 200, the third connecting rod 400, and the connecting piece 500. Specifically, brass gaskets can be used.

[0045] The above has specifically described the preferred embodiments of the present invention. However, the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent variations or substitutions without departing from the spirit of the present invention, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A hinge with a large load-bearing gear structure, characterized in that, It includes a bottom plate (100), a first connecting rod (200) with two ends divided into a first end and a second end, a third connecting rod (400) with two ends divided into a fifth end and a sixth end, and a connecting piece (500). The first end and the fifth end are hinged to the bottom plate (100) at intervals along the extension direction of the bottom plate (100), and the second end and the sixth end are hinged to the connecting piece (500) at intervals along the extension direction of the connecting piece (500). An arc-shaped gear (220) is provided on the end face of the first end, and a limit gear (120) meshing with the arc-shaped gear (220) is rotatably provided on the bottom plate (100). A tooth groove (410) is provided on the side of the third connecting rod (400) close to the limit gear (120). When the hinge is closed, the tooth groove (410) meshes with the limit gear (120), the third connecting rod (400) presses against the limit gear (120), and the limit gear (120) presses against the arc-shaped gear (220) in the reverse direction.

2. The large-load-bearing gear structure hinge according to claim 1, characterized in that: The bottom plate (100) is further provided with an arc-shaped groove (110) that penetrates up and down. The arc-shaped groove (110) is arc-shaped with the hinge point between the bottom plate (100) and the first end as the center of the circle. The first connecting rod (200) is provided with a first connecting member (210), and the first connecting member (210) is slidably arranged in the arc-shaped groove (110).

3. The large-load-bearing gear structure hinge according to claim 1, characterized in that: The third connecting rod (400) is provided with a clamping step (420), and the tooth groove (410) is arranged on the step surface of the clamping step (420).

4. The large-load-bearing gear structure hinge according to claim 1, characterized in that: The large-load-bearing gear structure hinge further includes a second connecting rod (300) with two ends divided into a third end and a fourth end. The third end is hinged to the bottom plate (100), the third end is arranged between the first end and the fifth end, the fourth end is hinged to the third connecting rod (400), and the fourth end is arranged between the fifth end and the sixth end.

5. The large-load-bearing gear structure hinge according to claim 1, characterized in that: The first connecting rod (200) is bent in the opening direction of the large-load-bearing gear structure hinge.

6. The large-load-bearing gear structure hinge according to claim 1, characterized in that: The bottom plate (100) is provided with a first protrusion (103) and a second protrusion (104) at intervals along the extension direction of the bottom plate (100). The first end is hinged to the first protrusion (103), and the fifth end is hinged to the second protrusion (104).

7. The large-load-bearing gear structure hinge according to claim 6, characterized in that: The hinge of the large load-bearing gear structure further includes a second connecting rod (300) with two ends divided into a third end and a fourth end. The third end is hinged to the bottom plate (100), and the third end is hinged between the first protrusion (103) and the second protrusion (104). The fourth end is hinged to the third connecting rod (400), and the fourth end is arranged between the fifth end and the sixth end.

8. The hinge of the large load-bearing gear structure according to claim 1, wherein: Two ends of the connecting piece (500) are divided into a first connecting end and a second connecting end. The first connecting end is provided with a bending part (510), and the bending part (510) is provided with a fixing hole (511).

9. The hinge of the large load-bearing gear structure according to claim 1, wherein: Gaskets (700) are arranged at the hinge joints between the bottom plate (100), the first connecting rod (200), the third connecting rod (400), and the connecting piece (500).

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