Heavy type 180-degree inward opening hinge

Abstract

The utility model discloses a heavy 180-degree inward-opening hinge which comprises a bottom plate and a supporting arm, a left-right adjusting cushion block is arranged on the bottom face of the front end of the bottom plate, a bottom plate gasket is arranged on the front end of the bottom plate, a bearing supporting column is arranged on the bottom plate gasket, and the bearing supporting arm is hinged to the left-right adjusting cushion block through the bottom plate gasket and the bottom plate. A bending surface is pressed on the head part of the supporting arm; and a zinc alloy guide column and an up-and-down adjusting zinc alloy seat are also arranged on the bending surface. The hinge is high in bearing capacity, large in opening angle, convenient to install and debug and suitable for heavy doors and windows in the industrial and building fields.

Description

Technical Field

[0001] The utility model relates to the field of hinges, and specifically to a heavy-duty 180-degree in-swing hinge. Background Technique

[0002] In the fields of furniture, building doors and windows, etc., as an important component for connecting parts and realizing the opening and closing functions, the performance and structure of hinges have a crucial impact on the use effect. Traditional hinges have certain limitations in terms of structure and function. In terms of the opening angle, the opening angle of common hinges is limited and it is difficult to meet the requirements for large-angle opening in some specific scenarios. For example, in an indoor environment with a relatively small space, if the doors and windows cannot be opened in-swing at a large angle, it will seriously affect the effective utilization of the indoor space and the convenience of personnel activities. During the installation process, due to factors such as installation errors or deformation during use, it is often necessary to adjust the hinges in the up-down and left-right directions.

[0003] However, many existing hinges either do not have an adjustment function, or their adjustment structure is complex, the operation is inconvenient, and the adjustment accuracy is low, making it difficult to achieve precise installation and use effects. Therefore, it is of great practical significance to develop a 180-degree in-swing hinge with a convenient adjustment function and a stable structure. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a heavy-duty 180-degree in-swing hinge to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A heavy-duty 180-degree in-swing hinge, including a bottom plate and a support arm. The bottom surface of the front end of the bottom plate is provided with left and right adjusting pads, the upper surface of the front end of the bottom plate is provided with a bottom plate gasket, and a load-bearing support arm is arranged above the bottom plate gasket. The load-bearing support arm is hinged to the left and right adjusting pads through the bottom plate gasket and the bottom plate. The head of the support arm is pressed with a bent plane, and a zinc alloy alignment post and an up-down adjusting zinc alloy seat are also arranged on the bent plane.

[0006] As a further description of the above solution, the head of the support arm is provided with a support arm positioning post. The lower end of the support arm positioning post is hinged to a sliding support arm. The sliding support arm is provided with a middle hole and a tail hole. The middle hole is hinged to the load-bearing support arm, and the tail hole is hinged to the bottom plate strip-shaped sliding groove.

[0007] As a further description of the above solution, the support arm is hinged to the head of the sliding support arm through the support arm positioning post. The sliding support arm is provided with a middle hole and a tail hole. The middle hole is hinged to the load-bearing support arm, and the tail hole is hinged to the bottom plate strip-shaped sliding groove.

[0008] As a further description of the above solution, a rotating rod is hinged to the middle hole of the support arm. A bent surface is pressed on the side surface of the rotating rod, and the rotating rod is also hinged to the load-bearing support arm.

[0009] As a further description of the above solution, a fixing machine screw is provided on the side surface of the up-and-down adjustable zinc alloy seat, and an internal hexagonal up-and-down adjustable machine screw is provided in the screw hole above the up-and-down adjustable zinc alloy seat.

[0010] As a further description of the above solution, an internal hexagonal adjustable sealing rivet is fixedly provided in the hole at the tail of the load-bearing arm. The internal hexagonal adjustable sealing rivet is designed with three levels of steps, and the middle step is an eccentric design.

[0011] As a further description of the above solution, internal hexagonal adjustable left and right rivets are provided above the bottom plate, and the internal hexagonal adjustable left and right rivets pass through the bottom plate and are hinged to the adjustable left and right pads.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] Through the left and right adjustment structure provided at the front of the bottom plate of the present utility model, after the window is installed, the left and right gaps of the window are adjusted by the internal hexagonal adjustable left and right rivets, making the window more beautiful and having better sealing performance. The 90-degree bending surface of the supporting arm is pressed with an up-and-down adjustable zinc alloy seat structure. By using the internal hexagonal up-and-down adjustable machine screw in the hole of the up-and-down adjustable zinc alloy seat to top against the zinc alloy alignment column, the upper hinge supporting arm is lifted upwards to achieve the function of preventing sagging. The overall structure design of the present utility model is reasonable, with strong load-bearing capacity, large opening angle, high stability, and meeting the requirements for the opening and closing of heavy doors or windows in the industrial and construction fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional view of the 180-degree open state of the embodiment of the present utility model;

[0015] Figure 2 It is a three-dimensional view of the 90-degree open state of the embodiment of the present utility model;

[0016] Figure 3 It is an exploded view of the overall structure of the embodiment of the present utility model.

[0017] In the figure: 1, internal hexagonal rivet; 2, sliding support arm; 3, support arm; 4, zinc alloy alignment column; 5, fixing machine screw; 6, internal hexagonal up-and-down adjustable machine screw; 7, up-and-down adjustable zinc alloy seat; 8, support arm positioning column; 9, rotating rod; 10, load-bearing arm; 11, internal hexagonal adjustable sealing rivet; 12, bottom plate gasket; 13, bottom plate; 14, buckle rotating piece A; 15, adjustable left and right pad; 16, buckle rotating piece B; 17, internal hexagonal adjustable left and right rivet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] As Figures 1-3 shown, this embodiment provides a heavy-duty 180-degree inward-opening hinge, which includes a bottom plate and a support arm. On the bottom surface of the front end of the bottom plate 13, there are adjusting left and right pads 15. On the upper surface of the front end of the bottom plate 13, there is a bottom plate gasket 12. Above the bottom plate gasket 12, there is a load-bearing support arm 10. At the tail hole of the load-bearing support arm 10, there is a hexagon socket adjusting and sealing rivet 11. The hexagon socket adjusting and sealing rivet 11 passes through the load-bearing support arm 10, the bottom plate gasket 12, and the bottom plate 13 and is hinged to the adjusting left and right pads 15. Above the bottom plate 13, there is a hexagon socket adjusting left and right rivet 17, and the hexagon socket adjusting left and right rivet 17 passes through the bottom plate 13 and is hinged to the adjusting left and right pads 15. After the window is installed, the left and right gaps of the window can be adjusted through the hexagon socket adjusting left and right rivet 17, making the window more beautiful and having better sealing performance.

[0020] As Figures 1-3 shown, the head of the support arm 3 is pressed with a bent plane. On the bent plane, there are also a zinc alloy alignment post 4 and an up and down adjusting zinc alloy seat 7. On the side of the up and down adjusting zinc alloy seat 7, there is a fixed machine screw top 5. Inside the screw hole above the up and down adjusting zinc alloy seat 7, there is a hexagon socket up and down adjusting machine screw 6. When installing the window sash, the up and down adjusting zinc alloy seat 7 is placed and fixed in the side groove of the window sash. When the window sags, the hexagon socket up and down adjusting machine screw 6 in the hole of the up and down adjusting zinc alloy seat 7 can be topped against the zinc alloy alignment post 4, and lifting the upper hinge support arm 3 can achieve the function of preventing sagging.

[0021] As Figures 1-3 shown, below the front end of the bottom plate 13, there is a buckle rotating piece A 14. Below the middle end and the tail end, there are respectively buckle rotating pieces B 16. The buckle rotating piece A 14 and the buckle rotating piece B 16 are fixed under the bottom plate by a hexagon socket rivet 1. During installation, the hexagon socket rivet 1 rotates 90 degrees and is stuck in the window frame groove opening to achieve convenient installation. At the rear of the bottom plate 13, there is a sliding strip-shaped groove, and the stroke is limited through the strip-shaped groove during opening and closing.

[0022] As Figures 1-3 shown, at the head of the support arm 3, there is a support arm positioning post 8. The lower end of the support arm positioning post 8 is hinged with a sliding support arm 2. The sliding support arm 2 is provided with a middle hole and a tail hole. The middle hole is hinged with the load-bearing support arm 10, and the tail hole is hinged with the strip-shaped sliding groove of the bottom plate 13.

[0023] As Figures 1-3As shown, a rotating rod 9 is hinged to the middle hole of the bracket arm 3. A bent surface is pressed on the side of the rotating rod 9, effectively enhancing the strength of the rotating rod 9. The rotating rod 9 is also hinged to the load-bearing support arm 10.

[0024] As Figures 1-3 shown, the hexagon socket head adjusting and sealing rivet 11 is provided with three levels of steps. The middle step is an eccentric design, and the front and rear sealing performance can be adjusted through the eccentric part during adjustment and rotation.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty 180-degree inward-opening hinge, comprising a bottom plate (13) and a support arm (3), characterized in that: At the bottom surface of the front end of the bottom plate (13), there are left and right adjusting pads (15). On the upper surface of the front end of the bottom plate (13), there is a bottom plate gasket (12). Above the bottom plate gasket (12), there is a load-bearing support arm (10). The load-bearing support arm (10) is hinged to the left and right adjusting pads (15) through the bottom plate gasket (12) and the bottom plate (13). At the head of the support arm (3), there is a bent plane, and on the bent plane, there are also a zinc alloy alignment post (4) and an up and down adjusting zinc alloy seat (7).

2. The heavy-duty 180-degree inward-opening hinge according to claim 1, wherein: Below the front end of the bottom plate (13), there is a buckle rotating piece A (14). Below the middle end and the tail end respectively, there are buckle rotating pieces B (16). The buckle rotating piece A (14) and the buckle rotating piece B (16) are respectively hinged with internal hexagonal rivets (1) through the bottom plate (13). At the rear of the bottom plate (13), there is a sliding strip-shaped groove.

3. A heavy-duty 180-degree inward-opening hinge according to claim 1 or claim 2, characterized in that: At the head of the support arm (3), there is a support arm positioning post (8). The lower end of the support arm positioning post (8) is hinged with a sliding support arm (2). The sliding support arm (2) is provided with a middle hole and a tail hole. The middle hole is hinged with the load-bearing support arm (10), and the tail hole is hinged with the strip-shaped sliding groove of the bottom plate (13).

4. A heavy-duty 180-degree inward-opening hinge according to claim 1, characterized in that: The middle hole of the support arm (3) is hinged with a rotating rod (9). On the side surface of the rotating rod (9), there is a bent surface, and the rotating rod (9) is also hinged with the load-bearing support arm (10).

5. A heavy-duty 180-degree inward-opening hinge according to claim 1, characterized in that: On the side surface of the up and down adjusting zinc alloy seat (7), there is a fixed machine screw top screw (5). In the screw hole above the up and down adjusting zinc alloy seat (7), there is an internal hexagonal up and down adjusting machine screw (6).

6. The heavy-duty 180-degree inward-opening hinge according to claim 1, wherein: At the tail hole of the load-bearing support arm (10), there is a fixed internal hexagonal adjusting and sealing rivet (11). The internal hexagonal adjusting and sealing rivet (11) is designed with three levels of steps, and the middle step is an eccentric design.

7. A heavy-duty 180-degree inward-opening hinge according to claim 1, characterized in that: Above the bottom plate (13), there is an internal hexagonal adjusting left and right rivet (17), and the internal hexagonal adjusting left and right rivet (17) passes through the bottom plate (13) and is hinged with the left and right adjusting pads (15).

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