A multi-step adjusted self-resetting hinge

Abstract

The utility model discloses a kind of self-resetting hinges of multiple-gear adjustment, including first hinge base, second hinge base and the connecting seat being set between first hinge base and second hinge base, the connecting seat is rotatably connected with the first hinge base by pivot, and the automatic closing force is provided for the pivot by compression spring in the first hinge base;Wherein the second hinge base is equipped with the cavity for the connecting seat movable and is provided with, to make connecting seat can be linear motion relative to second hinge base, the side wall of the connecting seat is distributed with multiple arc limit slot, limit pin is movably arranged on the second hinge base, the limit pin at least partially extends to the cavity, and cooperate with the arc limit slot, the part of limit pin protruding from the cavity can selectively with any arc limit slot of the upper and lower side wall of connecting seat be engaged, to stably lock connecting seat and second hinge base in one of multiple preset fixed gear position, realize the multiple-gear adjustment of extension length.

Description

Technical Field

[0001] This utility model relates to the field of hardware accessories, and in particular to a self-resetting hinge with multiple adjustable positions. Background Technology

[0002] Hinges are key components that connect the door body to the door frame and enable the door body to rotate. In applications such as fence gates, hinges are usually required to have an automatic closing function to ensure that the door can automatically return to the closed position after use. Most existing fence gate self-resetting hinges use a torsion spring structure to achieve this function.

[0003] However, during actual installation and use, due to installation tolerances between the door frame and the door body, or wear and deformation caused by long-term use, the relative position between the door body and the door frame may change, leading to incomplete closure, abnormal noise, or mutual interference. Currently, most self-resetting hinges on the market do not have, or only have very limited, adjustment capabilities, making it difficult to effectively and conveniently compensate for these positional deviations, causing inconvenience for installation and subsequent maintenance.

[0004] Therefore, there is an urgent need for a hinge that can flexibly adjust the relative distance between the door and the door frame while having a reliable self-resetting function. Utility Model Content

[0005] The purpose of this invention is to provide a self-resetting hinge with multi-position adjustment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-position adjustable self-resetting hinge includes a first hinge seat, a second hinge seat, and a connecting seat disposed between the first and second hinge seats. The connecting seat is rotatably connected to the first hinge seat via a rotating shaft, and an automatic closing force is provided to the rotating shaft by a compression spring within the first hinge seat. The second hinge seat has a cavity through which the connecting seat can move linearly relative to the second hinge seat. The sidewall of the connecting seat is provided with multiple arc-shaped limiting grooves. A limiting pin is movably disposed on the second hinge seat. The limiting pin extends at least partially into the cavity and cooperates with the arc-shaped limiting grooves. The portion of the limiting pin protruding from the cavity can selectively engage with any arc-shaped limiting groove on the upper or lower sidewall of the connecting seat, thereby securely locking the connecting seat and the second hinge seat in one of multiple preset fixed positions, achieving multi-position adjustment of the extension length.

[0008] Furthermore, the first hinge is C-shaped or U-shaped, and both ends of the first hinge are fixedly connected to both ends of the rotating shaft to form a stable rotational support structure.

[0009] Furthermore, the second hinge seat includes a symmetrically arranged left split seat and a right split seat, which are connected by fasteners. This not only facilitates the encapsulation of the connecting seat within its cavity, simplifying the assembly process, but also allows the limiting pin to be manually removed from the arc-shaped limiting groove by disassembling the left and right split seats. Then, the connecting seat can be linearly moved to the target position, and the cylindrical side of the limiting pin can be engaged with the target arc-shaped limiting groove. Finally, the left and right split seats can be reassembled to complete the locking.

[0010] Furthermore, the connecting seat is provided with at least a rotating cavity for the rotation of the rotating shaft and a spring mounting cavity for the linear motion of the compression spring. A first cam is provided on the rotating shaft. One end of the compression spring abuts against the first cam, and the other end abuts against the connecting seat. Energy is accumulated by compressing the compression spring through the rotation of the first cam to achieve automatic reset.

[0011] Furthermore, a piston element is also provided in the spring mounting cavity. The piston element is sleeved on the compression spring and positioned between the rotating shaft and the compression spring. This not only improves the stability of the compression spring during movement and prevents it from wobbling, but also extends its service life.

[0012] Furthermore, a damper mounting cavity is provided within the connecting seat, and a damper is installed within the damper mounting cavity. A second cam is provided on the rotating shaft, and one end of the damper abuts against the second cam, while the other end abuts against the connecting seat. Through the cooperation between the damper and the second cam, the closing process is buffered, achieving a gentle closure.

[0013] Furthermore, an end cap is provided at the end of the connecting seat. The end cap is threaded onto the connecting seat and abuts against the end of the compression spring and damper away from the rotating shaft, which is used to enclose the chamber and provide a preload adjustment function.

[0014] Compared with the prior art, this technical solution provides a self-resetting hinge with multi-position adjustment, which has the following beneficial effects: through the linear movement of the connecting seat in the cavity of the second hinge seat, and in conjunction with the engagement of the limiting pin with different arc-shaped limiting grooves, it not only realizes the multi-position adjustment of the relative distance between the door body and the door frame, effectively compensating for installation tolerances and structural deformation, but also has a self-guiding effect due to the smooth fit between the arc-shaped limiting groove and the cylindrical side of the limiting pin, resulting in a better adjustment feel and more stable and reliable position locking. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a top-view structural diagram of the present invention.

[0017] Figure 3 yes Figure 2 Schematic diagram of cross section AA.

[0018] Figure 4 This is a schematic diagram of the main view structure of this utility model.

[0019] Figure 5 yes Figure 4 Schematic diagram of cross section of BB.

[0020] Figure 6 yes Figure 4 A cross-sectional view of the C-section.

[0021] Figure 7 This is an exploded view diagram of this utility model.

[0022] As shown in the annotations in the figure:

[0023] 100. First hinge seat;

[0024] 200, Second hinge seat; 201, Cavity; 210, Left split seat; 220, Right split seat;

[0025] 300. Connecting seat; 301. Rotating cavity; 302. Spring mounting cavity; 303. Damper mounting cavity; 304. Arc-shaped limiting groove;

[0026] 400, pivot; 401, first cam; 402, second cam;

[0027] 500, Compression Spring;

[0028] 600. Damper;

[0029] 700, limit pin;

[0030] 800. Piston components;

[0031] 900, end cap. Detailed Implementation

[0032] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0033] refer to Figures 1 to 7 A self-resetting hinge with multi-position adjustment mainly includes a first hinge seat 100, a second hinge seat 200 and a connecting seat 300.

[0034] The first hinge seat 100 is usually fixed to the door body (not shown in the figure) by screws; it has a C-shaped or U-shaped structure, and its two ends are fixedly connected to the two ends of the rotating shaft 400 by bearings or bushings, providing a stable and solid rotation fulcrum for the entire hinge.

[0035] The second hinge 200 is fixed to the door frame (not shown in the figure) by screws; preferably, it is assembled by screws from symmetrical left split seat 210 and right split seat 220, which together form a cavity 201. Insertion holes (not marked in the figure) are provided on the upper and lower side walls of the cavity 201.

[0036] The connecting seat 300, as the core moving and functional component, runs through the cavity 201 of the second hinge seat 200 and can slide linearly along its axial direction. The connecting seat 300 integrates multiple functional chambers: including a rotating cavity 301 through which the rotating shaft 400 passes, a spring mounting cavity 302 for accommodating the compression spring 500, and a damper mounting cavity 303 for optionally accommodating the damper 600. Specifically, arc-shaped limiting grooves 304 representing different gear positions are symmetrically machined along the axial direction on the upper and lower outer walls of the connecting seat 300.

[0037] The multi-position adjustment function of the self-resetting hinge is mainly used during the initial installation or when major maintenance is required. When it is necessary to adjust the distance between the door and the door frame, the following steps are included:

[0038] 1. First, remove the fasteners connecting the left split seat 210 and the right split seat 220 of the second hinge seat 200 to separate the two;

[0039] 2. The limit pins 700 are in an operable state because they are no longer constrained by the split seat. The operator can manually remove the upper and lower limit pins 700 from the arc-shaped limit grooves 304 that they are currently engaged in.

[0040] 3. Directly linearly move the connecting seat 300 so that it extends or retracts relative to the second hinge seat 200;

[0041] 4. When the connecting seat 300 moves to the target position, that is, when the target arc-shaped limiting groove 304 on its upper and lower side walls is aligned with the upper and lower insertion holes, insert the limiting pin 700 into the insertion hole so that its cylindrical side is engaged in the target arc-shaped limiting groove 304.

[0042] 5. Finally, reassemble and tighten the left split seat 210 and the right split seat 220 to complete the adjustment.

[0043] After adjustment, the mechanical interlock between the cylindrical side of the limiting pin 700 and the arc-shaped limiting groove 304, combined with the tight wrapping of the connecting seat 300 and the limiting pin 700 by the left and right split seats, makes the entire hinge a rigid whole in the locked state, avoiding accidental displacement caused by vibration or impact during use and ensuring long-term stability.

[0044] The self-reset function is mainly achieved through a cam and a compression spring 500. A first cam 401 is fixedly installed on the rotating shaft 400, and the compression spring 500 is installed in the spring mounting cavity 302. One end of the compression spring 500 directly or through the piston element 800 abuts against the first cam 401, and the other end abuts against the end cover 900. When the door is opened, the rotating shaft 400 rotates and drives the first cam 401 to rotate, compressing the compression spring 500 to store potential energy. When the user releases the door, the compressed compression spring 500 releases its potential energy, pushes the first cam 401 and drives the rotating shaft 400 to rotate in the opposite direction, thereby driving the door to automatically return to the closed position.

[0045] To achieve a better door closing experience, this utility model also integrates a damping buffer function; a second cam 402 is fixed on the rotating shaft 400, and the damper 600 is installed in the damper mounting cavity 303, with its end abutting against the second cam 402; at the end of the door closing process, the contour of the second cam 402 will compress the piston rod of the damper 600, and the generated damping force will effectively buffer the closing speed of the door.

[0046] The end cap 900 is screwed onto the end of the connecting seat 300 by threads. The end cap 900 is not only used to seal the internal cavity and facilitate the installation and removal of the compression spring 500 and the damper 600, but also allows for fine adjustment of the preload force of the compression spring 500 and the damper 600 by screwing it in or out. This allows for fine adjustment of the door's self-closing force and the strength of the buffering effect within a certain range to adapt to different usage scenarios and user preferences.

Claims

1. A multi-position adjustable self-resetting hinge, comprising a first hinge seat (100), a second hinge seat (200), and a connecting seat (300) disposed between the first hinge seat (100) and the second hinge seat (200), wherein the connecting seat (300) is rotatably connected to the first hinge seat (100) via a rotating shaft (400), and an automatic closing force is provided to the rotating shaft (400) via a compression spring (500) within the first hinge seat (100), characterized in that: The second hinge seat (200) has a cavity (201) through which the connecting seat (300) can move linearly relative to the second hinge seat (200). The side wall of the connecting seat (300) is provided with a plurality of arc-shaped limiting grooves (304). A limiting pin (700) is movably provided on the second hinge seat (200). The limiting pin (700) extends at least partially into the cavity (201) and cooperates with the arc-shaped limiting groove (304).

2. The self-resetting hinge with multi-position adjustment according to claim 1, characterized in that: The first hinge (100) is C-shaped or U-shaped, and the two ends of the first hinge (100) are fixedly connected to the two ends of the rotating shaft (400).

3. The self-resetting hinge with multi-position adjustment according to claim 1, characterized in that: The second hinge (200) includes a left split seat (210) and a right split seat (220) arranged symmetrically, and the left split seat (210) and the right split seat (220) are fixedly connected by bolts.

4. The self-resetting hinge with multi-position adjustment according to claim 1, characterized in that: The connecting seat (300) is provided with at least a rotating cavity (301) for the rotating shaft (400) to rotate and a spring mounting cavity (302) for the linear motion of the compression spring (500). The rotating shaft (400) is provided with a first cam (401). One end of the compression spring (500) abuts against the first cam (401) and the other end abuts against the connecting seat (300).

5. A self-resetting hinge with multi-position adjustment according to claim 4, characterized in that: A piston element (800) is also provided in the spring mounting cavity (302). The piston element (800) is located between the rotating shaft (400) and the compression spring (500), and the piston element (800) is sleeved on the compression spring (500).

6. A self-resetting hinge with multi-position adjustment according to any one of claims 4 or 5, characterized in that: The connecting seat (300) is also provided with a damper mounting cavity (303), and a damper (600) is provided in the damper mounting cavity (303). A second cam (402) is provided on the rotating shaft (400). One end of the damper (600) abuts against the second cam (402), and the other end abuts against the connecting seat (300).

7. A self-resetting hinge with multi-position adjustment according to claim 6, characterized in that: The end of the connecting seat (300) is provided with an end cap (900), which is threaded onto the connecting seat (300) and abuts against the end of the compression spring (500) and damper (600) away from the rotating shaft (400).

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