Three-dimensional eccentric hinge

Abstract

This application relates to the technical field of hinges, and more particularly to a three-dimensional eccentric hinge, which includes a first hinge piece and a second hinge piece, with an eccentric hinge shaft between the first and second hinge pieces for mutual hinge engagement. The eccentric hinge shaft includes a first hinge portion for hinge engagement of the first hinge piece and a second hinge portion for hinge engagement of the second hinge piece, with the central axes of the first and second hinge portions arranged parallel to each other. The first hinge piece has a longitudinal mounting adjustment groove for connecting a component to be installed, and the second hinge piece has a vertical mounting adjustment groove for connecting a component to be installed. This application allows for three-dimensional adjustment of the position of the door frame and door body, thereby ensuring both flatness and sealing.

Description

Technical Field

[0001] This application relates to the technical field of hinges, and in particular to three-dimensional eccentric hinges. Background Technology

[0002] A hinge is a mechanical device used to connect two solid objects and allow relative rotation between them. It is mainly used in the connection of doors and windows to frames in air handling equipment such as fan components manufactured by our company.

[0003] Currently, a common hinge on the market, such as the one with announcement number CN206844907U, discloses an environmentally friendly hinge, including a first hinge, a second hinge, and a hinge shaft. The first hinge has a first bushing, and the first hinge and the first bushing are an integral structure. The second hinge has a second bushing, and the second hinge and the second bushing are an integral structure. The first bushing and the second bushing are arranged alternately. The hinge shaft passes through the first bushing and the second bushing in sequence, and both ends of the hinge shaft are located in the two first bushings of the first hinge. The second hinge is rotatably engaged with the first hinge.

[0004] Regarding the aforementioned technologies, the inventors discovered that, theoretically, the first and second hinges should be flush when unfolded, ensuring a flush seal when the door and frame above them are closed. However, in actual use, due to manufacturing precision issues and wear on the hinge shafts over time, the first and second hinges are not flush when unfolded, resulting in unevenness between the door and frame above them and consequently poor sealing performance. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a three-dimensional eccentric hinge, which has the advantage of being able to adjust the position of the door frame and the door body in three dimensions, thereby ensuring the flatness and sealing of both.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A three-dimensional eccentric hinge includes a first hinge piece and a second hinge piece, and an eccentric hinge shaft for hinged to each other is provided between the first hinge piece and the second hinge piece. The eccentric hinge shaft includes a first hinge portion for hinged to a first hinge and a second hinge portion for hinged to a second hinge piece, wherein the central axes of the first hinge portion and the second hinge portion are arranged in parallel. The first hinge piece is provided with a longitudinal mounting adjustment groove for connecting the component to be installed, and the second hinge piece is provided with a vertical mounting adjustment groove for connecting the component to be installed.

[0007] To achieve the above technical solution, the central axes of the first hinge and the second hinge are set parallel to each other, thereby making the second hinge eccentrically set relative to the first hinge. At this time, the first hinge piece is installed on the first hinge, and the second hinge piece is installed on the second hinge. Only by rotating the eccentric hinge shaft can the angle of the second hinge relative to the first hinge be adjusted, thereby adjusting the relative height between the first hinge piece and the second hinge piece in the unfolded state (i.e., adjusting the parallelism of the end faces of the first hinge piece and the second hinge piece), and thus adjusting the flatness of the door body and door frame installed above it. At the same time, the longitudinal installation adjustment groove and the vertical installation adjustment groove can adjust the sealing effect between the door body and the door frame in both longitudinal and vertical directions.

[0008] As a preferred embodiment of this application, the first hinge piece is provided with a pair of hinge sleeves sleeved on the eccentric hinge shaft, the hinge sleeves protruding from the end face of the first hinge piece, and the second hinge piece is provided with a bushing sleeve sleeved on the second hinge portion, the bushing protruding from the end face of the second hinge piece.

[0009] The above technical solution ensures that both the hinge sleeve and the bushing protrude beyond the first and second hinge pieces, so that when the eccentric hinge shaft is rotated, the first hinge piece rotates relative to the second hinge piece without affecting each other, thus guaranteeing smooth adjustment and adjustable range.

[0010] As a preferred embodiment of this application, one of the hinge sleeves is provided with a locking groove for locking, the first hinge part has a threaded groove that mates with the locking groove, and a clamping screw is provided in the locking groove.

[0011] By implementing the above technical solution, the hinge shaft is relatively fixed relative to the first hinge piece, thereby completing the adjustment and fixation of the eccentric hinge shaft.

[0012] As a preferred embodiment of this application, the longitudinal mounting adjustment groove is configured as a waist-shaped groove arranged longitudinally, and a longitudinal protective cap is fastened to the longitudinal mounting adjustment groove.

[0013] By implementing the above technical solution, when the first hinge piece is installed on the door frame through the longitudinal installation adjustment groove with screws, the longitudinal height of the entire hinge can be adjusted longitudinally without changing the position of the screw holes on the door frame, thereby adjusting the longitudinal height of the second hinge piece and ensuring the flatness of the adjustment. A longitudinal protective cap is fastened to the longitudinal installation adjustment groove. The longitudinal protective cap is detachably fastened to the slot in the inner wall of the longitudinal installation adjustment groove by the latches on both sides, thereby protecting the screws installed inside and improving the aesthetics.

[0014] As a preferred embodiment of this application, the vertical mounting adjustment groove is configured as a vertically positioned waist-shaped groove, and a vertical protective cap is fastened to the vertical mounting adjustment groove.

[0015] The above technical solution enables the door panel to be installed on the second hinge piece by screws passing through the vertical installation adjustment groove. While the position of the screw holes on the door frame remains unchanged, the position of the installation screws in the vertical installation adjustment groove can be adjusted to adjust the vertical height of the door panel, thereby ensuring the flatness of the adjustment. A vertical protective cap is fastened to the vertical installation adjustment groove, thus protecting the screws installed inside and improving the aesthetics.

[0016] As a preferred embodiment of this application, the first hinge piece is further provided with a longitudinal mounting reinforcement groove.

[0017] The above technical solution is implemented so that it forms a triangular mounting point with the two longitudinal mounting adjustment slots, thereby improving the stability of the first hinge piece installation.

[0018] In summary, this application includes at least one of the following beneficial technical effects: 1. The central axes of the first and second hinges are set parallel to each other, thus making the second hinge eccentrically set relative to the first hinge. At this time, the first hinge piece is installed on the first hinge, and the second hinge piece is installed on the second hinge. Only by rotating the eccentric hinge shaft can the angle of the second hinge relative to the first hinge be adjusted, thereby adjusting the relative height between the first and second hinge pieces in the unfolded state (i.e., adjusting the parallelism of the end faces of the first and second hinge pieces), and thus adjusting the flatness of the door body and door frame installed above it; at the same time, the longitudinal installation adjustment groove and the vertical installation adjustment groove can adjust the sealing effect between the door body and door frame in the longitudinal and vertical directions. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0021] Figure 2 This is an exploded view of an embodiment of this application.

[0022] Figure 3 This is a side view of the eccentric hinge shaft in an embodiment of this application.

[0023] Figure 4 This is a schematic diagram of the bottom structure in an embodiment of this application.

[0024] Reference numerals: 1. First hinge piece; 11. Hinge sleeve; 12. Locking groove; 2. Second hinge piece; 21. Bushing; 3. Eccentric hinge shaft; 31. First hinge part; 32. Second hinge part; 33. Threaded groove; 4. Longitudinal mounting adjustment groove; 5. Longitudinal protective cap; 6. Longitudinal mounting reinforcing groove; 7. Vertical mounting adjustment groove; 8. Vertical protective cap. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0026] This application discloses a three-dimensional eccentric hinge. (Refer to...) Figure 1 The three-dimensional eccentric hinge includes a first hinge piece 1 and a second hinge piece 2, with an eccentric hinge shaft 3 between them for hinged connection. That is, after the first hinge piece 1 is installed and fixed on the frame, the second hinge piece 2 is then installed on the door panel, allowing the door panel to rotate around the eccentric hinge shaft 3, thus opening and closing the door. To prevent unevenness between the door and the door frame when the door is closed, which could reduce the insulation effect...

[0027] The eccentric hinge shaft 3 includes a first hinge portion 31 for hinged to the first hinge and a second hinge portion 32 for hinged to the second hinge piece 2. The central axes of the first hinge portion 31 and the second hinge portion 32 are arranged parallel to each other, so that the second hinge portion 32 is eccentrically arranged relative to the first hinge portion 31. At this time, after the first hinge piece 1 is installed on the first hinge portion 31 and the second hinge piece 2 is installed on the second hinge portion 32, it is only necessary to rotate the eccentric hinge shaft 3 to adjust the angle of the second hinge portion 32 relative to the first hinge portion 31, thereby adjusting the relative height between the first hinge piece 1 and the second hinge piece 2 in the unfolded state (i.e., adjusting the parallelism of the end faces of the first hinge piece 1 and the second hinge piece 2), thereby adjusting the flatness of the door body and door frame installed above it. A pair of hinge sleeves 11 are provided on the first hinge piece 1 and sleeved on the eccentric hinge shaft 3. The hinge sleeves 11 protrude from the end face of the first hinge piece 1. A bushing 21 is provided on the second hinge piece 2 and sleeved on the second hinge portion 32. The bushing 21 protrudes from the end face of the second hinge piece 2. Thus, both the hinge sleeves 11 and the bushing 21 protrude from the first hinge piece 1 and the second hinge piece 2, so that when the eccentric hinge shaft 3 is rotated, the first hinge piece 1 rotates relative to the second hinge piece 2 without affecting each other, ensuring smooth adjustment and adjustable range. One of the hinge sleeves 11 is provided with a locking groove 12 for locking. The first hinge portion 31 has a screw groove 33 that mates with the locking groove 12. The screw groove 33 is an annular groove, and a clamping screw (not shown in the figure) is provided in the locking groove 12. After adjusting the first hinge piece 1 and the second hinge piece 2, the tightening screw is then inserted to fix the hinge shaft relative to the first hinge piece 1, thus completing the adjustment and fixation of the eccentric hinge shaft 3. To facilitate installation and connection stability, the first hinge part 31 consists of coaxial rotating shafts of different sizes located at both ends of the second hinge part 32, with the edge of one of the rotating shafts not exceeding the edge of the second hinge part 32. This prevents the second hinge part 32 from failing to insert due to eccentricity or other issues during installation.

[0028] To ensure the door's height and vertical position align perfectly with the door frame opening, the first hinge piece 1 is equipped with a vertical mounting adjustment groove 4 for connecting the components to be installed. This groove is a longitudinally oriented, waist-shaped groove. This allows the hinge piece 1 to be installed on the door frame via screws passing through the vertical mounting adjustment groove 4, while maintaining the same screw hole position on the door frame. This allows for vertical adjustment of the entire hinge's height, thereby adjusting the vertical height of the second hinge piece 2 and ensuring evenness. A vertical protective cap 5 is attached to the vertical mounting adjustment groove 4. This cap is detachably fastened to a groove on the inner wall of the groove 4 via tabs on both sides, protecting the screws installed inside and improving aesthetics. The first hinge piece 1 also features a vertical mounting reinforcement groove 6, forming a triangular mounting point with the two vertical mounting adjustment grooves 4, thus enhancing the stability of the first hinge piece 1 during installation.

[0029] The second hinge piece 2 is provided with a vertical mounting adjustment groove 7 for connecting the parts to be installed. The vertical mounting adjustment groove 7 is a vertically oriented, waist-shaped groove. This allows the screws to be adjusted in the vertical mounting adjustment groove 7 while the screw holes on the door frame remain unchanged, thus adjusting the vertical height of the door panel and ensuring flatness. A vertical protective cap 8 is fitted onto the vertical mounting adjustment groove 7. This protects the screws installed inside and also improves the aesthetics.

[0030] The implementation principle of a three-dimensional eccentric hinge in this application embodiment is as follows: the central axes of the first hinge part 31 and the second hinge part 32 are arranged parallel to each other, so that the second hinge part 32 is eccentrically arranged relative to the first hinge part 31. At this time, after the first hinge piece 1 is installed on the first hinge part 31 and the second hinge piece 2 is installed on the second hinge part 32, it is only necessary to rotate the eccentric hinge shaft 3 to adjust the angle of the second hinge part 32 relative to the first hinge part 31, thereby adjusting the relative height between the first hinge piece 1 and the second hinge piece 2 in the unfolded state (i.e., the end faces of the first hinge piece 1 and the second hinge piece 2 are adjusted to be parallel), thereby adjusting the flatness of the door body and door frame installed above it; at the same time, the longitudinal installation adjustment groove 4 and the vertical installation adjustment groove 7 can adjust the sealing effect between the door body and the door frame in the longitudinal and vertical directions.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A three-dimensional eccentric hinge, characterized in that: It includes a first hinge piece (1) and a second hinge piece (2), and an eccentric hinge shaft (3) for hinged to each other is provided between the first hinge piece (1) and the second hinge piece (2); The eccentric hinge shaft (3) includes a first hinge part (31) for hinged to the first hinge and a second hinge part (32) for hinged to the second hinge piece (2), and the central axes of the first hinge part (31) and the second hinge part (32) are arranged in parallel. The first hinge piece (1) is provided with a longitudinal mounting adjustment groove (4) for connecting the part to be installed, and the second hinge piece (2) is provided with a vertical mounting adjustment groove (7) for connecting the part to be installed.

2. The three-dimensional eccentric hinge according to claim 1, characterized in that: The first hinge piece (1) is provided with a pair of hinge sleeves (11) sleeved on the eccentric hinge shaft (3), the hinge sleeves (11) protruding from the end face of the first hinge piece (1), and the second hinge piece (2) is provided with a bushing (21) sleeved on the second hinge part (32), the bushing (21) protruding from the end face of the second hinge piece (2).

3. The three-dimensional eccentric hinge according to claim 1, characterized in that: One of the hinge sleeves (11) is provided with a locking groove (12) for locking, and the first hinge part (31) has a screw groove (33) that mates with the locking groove (12), and a clamping screw is provided in the locking groove (12).

4. The three-dimensional eccentric hinge according to claim 1, characterized in that: The longitudinal mounting adjustment groove (4) is configured as a waist-shaped groove arranged longitudinally, and a longitudinal protective cap (5) is fastened on the longitudinal mounting adjustment groove (4).

5. The three-dimensional eccentric hinge according to claim 1, characterized in that: The vertical mounting adjustment groove (7) is configured as a vertically positioned waist-shaped groove, and a vertical protective cap (8) is fastened to the vertical mounting adjustment groove (7).

6. The three-dimensional eccentric hinge according to claim 1, characterized in that: The first hinge piece (1) is also provided with a longitudinal mounting reinforcement groove (6).

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