A new structure hinge

Abstract

The utility model discloses a hinge of novel structure, including main part, connecting force arm and tension spring, the front of connecting force arm is rotated and is connected with the main part through rotating mechanism, the rear of tension spring is linked with the rear of main part, and the front is linked with the front of connecting force arm, the rear of connecting force arm is located and is set up with the positioning slot in the inside position of tension spring, the positioning slot is matched with the gyro wheel in, the gyro wheel is installed on the main part through the torsional spring elastic mechanism, the outside rear of connecting force arm is equipped with arc guiding angle. The utility model discloses a torsional spring elastic mechanism to realize the opening and closing of hinge, not only has saved the spring support, connecting rod mechanism, independent limiting and so on redundant components, and the structure of torsional spring elastic mechanism is simple, and the volume is smaller, and the cost is low, especially suitable for compact electric appliance.

Description

Technical Field

[0001] This utility model relates to a hinge with a novel structure. Background Technology

[0002] Traditional hinge structures, especially those used in applications requiring automatic rebound or limiting (such as hinges for electrical doors), typically contain many components and are relatively complex. For example, a common structure might include: a compression spring to provide elastic force, a dedicated bracket for mounting the spring, and a linkage mechanism for transmitting movement and limiting movement. This structure has the following drawbacks:

[0003] 1. Numerous parts: Components such as compression springs, brackets, and connecting rods increase manufacturing costs and assembly complexity;

[0004] 2. Large structural volume: The presence of brackets and connecting rods makes it difficult to reduce the overall size of the hinge, thus occupying space;

[0005] 3. Higher costs: Material costs and processing and assembly costs are relatively high.

[0006] Therefore, a hinge structure that is simpler, has fewer parts, is smaller, and is less expensive is needed. Utility Model Content

[0007] To address the aforementioned problems, this utility model provides a novel hinge structure that effectively solves the issues mentioned in the background section.

[0008] The technical solution adopted in this utility model is:

[0009] A novel hinge structure includes a main body, a connecting arm, and a tension spring. The front part of the connecting arm is rotatably connected to the main body via a rotating mechanism. The rear part of the tension spring is connected to the rear part of the main body, and the front part is connected to the front part of the connecting arm. A positioning groove is formed on the inner side of the tension spring on the rear part of the connecting arm. A roller is fitted in the positioning groove. The roller is mounted on the main body via a torsion spring elastic mechanism. An arc-shaped guide angle is provided on the outer rear part of the connecting arm.

[0010] Preferably, the torsion spring elastic mechanism generates a spring force on the roller toward the front of the main body, and the roller can roll back and forth between the positioning groove and the arc-shaped guide angle along the rear of the connecting arm. The rear of the connecting arm smoothly transitions through the arc surface along the rolling path of the roller.

[0011] Preferably, the torsion spring elastic mechanism includes a movable shaft disposed inside the roller and a torsion spring. One end of the torsion spring is sleeved on the outside of the movable shaft through a ring, and the other end is connected to the main body through a support rod and a positioning seat. The positioning seat is fixed to the main body, and the support rod abuts against the front side of the positioning seat. The support rod, the ring and the torsion spring are integrally formed.

[0012] Preferably, the main body has positioning holes on both sides of the moving shaft, and the positioning holes limit the movement of the moving shaft in the front-back direction.

[0013] Preferably, the rotating mechanism includes a front rivet and a bushing coaxially disposed outside the front rivet, the bushing being fixed to the front part of the connecting lever arm.

[0014] Preferably, a rear rivet is fixed to the rear of the main body, and the rear of the tension spring is connected to the rear rivet via a hook.

[0015] Preferably, the front part of the connecting arm is provided with a hook hole, and the front part of the tension spring is connected to the hook hole through a hook body.

[0016] Preferably, the front inner side of the connecting arm is provided with a positioning platform, and the front of the main body is provided with a limiting plate, and the positioning platform matches the limiting plate.

[0017] The innovative points of this utility model are as follows:

[0018] 1. Elastic limiting composite structure:

[0019] The traditional linkage + compression spring system is eliminated, and a rolling limiting mechanism of "roller + torsion spring + positioning groove" is adopted: the roller is embedded in the positioning groove at the rear of the connecting arm, and the torsion spring elastic mechanism continuously applies forward elastic force to make the roller dynamically limited in the positioning groove; the rear of the connecting arm is designed with an arc-shaped guide angle, and the roller can roll along this path between the positioning groove and the guide angle to achieve a smooth transition in the opening and closing process;

[0020] Technical benefits: Eliminates traditional connecting rods, compression spring brackets, and other components, reducing the number of parts; reduces wear and extends service life by replacing sliding friction with rolling friction.

[0021] 2. The synergistic mechanism of the two springs:

[0022] Functional division of tension springs and torsion springs:

[0023] Tension spring: connects the rear of the main body to the front of the connecting lever arm, providing the basic tension for the opening and closing of the connecting lever arm;

[0024] Torsion spring: Drives the roller to press against the positioning groove, forming a self-locking limit (the roller restricts displacement when it is locked into the positioning groove, and releases displacement when it rolls to the guide angle).

[0025] Technical effect: The tension spring controls the opening and closing force, and the torsion spring precisely controls the limit; the two work together to improve stability.

[0026] 3. Innovative design of the torsion spring elastic mechanism:

[0027] Compact torsion spring mounting structure: The torsion spring is sleeved on the outside of the moving shaft through a ring, one end is fixed to the roller, and the other end is abutted against the positioning seat via a support rod (the positioning seat is fixed to the main body).

[0028] Positioning holes are provided on both sides of the movable shaft to limit its forward and backward displacement and ensure that the force direction of the torsion spring is controllable.

[0029] Technical benefits: Highly integrated structure, saving space; positioning holes prevent the moving shaft from shifting, improving motion accuracy;

[0030] 4. Dynamic guidance and self-locking function:

[0031] Path control using curved guide angles and positioning grooves:

[0032] When the connecting arm rotates, the roller rolls along the positioning groove under the pressure of the torsion spring, and after entering the guide angle, it pushes the connecting arm to continue rotating;

[0033] When closed, the roller automatically slides back into the positioning groove under the action of the torsion spring, achieving self-locking;

[0034] Technical benefits: Smooth opening and closing process with low noise; automatically locks when closed to prevent accidental opening;

[0035] 5. Innovative design of the tension spring structure:

[0036] The connecting arm is directly connected to the tension spring. Compared with the traditional structure, the connecting rod between the connecting arm and the tension spring is eliminated, which helps to reduce the size and cost.

[0037] 6. Innovative limiting structure design:

[0038] A positioning platform is provided on the inner front side of the connecting arm, and a limiting plate matching the positioning platform is provided on the inner front side of the main body. When the connecting arm rotates until the positioning platform abuts against the limiting plate, the maximum opening angle is reached. The maximum opening angle design can prevent the door from opening too wide and causing dangers such as impacts. In addition, the limiting structure has a certain load capacity, so that items of a certain weight can be placed on the door when it is open, which is convenient for use.

[0039] 7. Hinge spring-loaded design:

[0040] The positioning holes on the main body are used to determine the rebound angle when the connecting lever arm is closed. Through the rebound design, the door can be automatically controlled to close when the door body is smaller than the rebound angle.

[0041] The beneficial effects of this utility model are as follows:

[0042] I. Structural simplification and cost optimization:

[0043] 1. The number of parts has been greatly reduced:

[0044] By eliminating redundant components such as traditional compression spring brackets, linkage mechanisms, and independent limiters, the composite function is achieved solely through rollers, torsion springs, and positioning grooves, significantly reducing material costs.

[0045] 2. Significantly reduced size:

[0046] The torsion spring, roller, moving shaft, and positioning seat adopt a flat layout;

[0047] Eliminating the lateral space occupied by traditional linkages makes it especially suitable for compact appliances (such as mini ovens and dishwasher doors).

[0048] II. Dynamic self-locking reliability:

[0049] When closed, the roller is automatically inserted into the positioning groove by the thrust of the torsion spring, forming a mechanical elastic lock;

[0050] During the opening and closing process, the roller smoothly transitions along the rear of the connecting lever arm, eliminating the "jamming point" of traditional hinges;

[0051] III. Functional Integration and User Experience Upgrade:

[0052] 1. Dual-spring coordinated control:

[0053] Tension spring: linearly controls the opening and closing force of the door (different stiffness springs can be replaced to adjust the feel);

[0054] Torsion spring: precisely controls the clamping force of the roller on the positioning groove to ensure the rigidity of the limit position;

[0055] 2. Adaptive path mechanism:

[0056] When the connecting arm rotates, the roller automatically rolls along the path of the positioning groove → arc-shaped guide angle:

[0057] During the opening phase: the roller disengages from the positioning groove and enters the guide angle, reducing the starting torque;

[0058] Closing phase: The roller completes self-locking the instant it slides into the positioning groove.

[0059] This invention uses a torsion spring elastic mechanism to realize the opening and closing of the hinge, which not only eliminates redundant components such as compression spring brackets, linkage mechanisms, and independent limiters, but also has a simple structure, smaller size, and lower cost, making it especially suitable for compact electrical appliances. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of the structure of this utility model;

[0061] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0062] Figure 3 A structural diagram of the main body;

[0063] Figure 4 This is a schematic diagram of the connecting lever arm;

[0064] Figure 5 A schematic diagram of the torsion spring elastic mechanism.

[0065] Figure 6 This is a schematic diagram of the structure of this utility model when it is opened to its maximum opening degree. Detailed Implementation

[0066] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0067] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0068] Furthermore, in the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0070] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0071] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0072] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0073] like Figure 1-5 As shown, a novel hinge structure includes a main body 1, a connecting arm 2, and a tension spring 3. The front part of the connecting arm 2 is rotatably connected to the main body 1 via a rotating mechanism. The rear part of the tension spring 3 is connected to the rear part of the main body 1, and the front part is connected to the front part of the connecting arm 2. A positioning groove 4 is provided on the inner side of the tension spring 3 on the rear part of the connecting arm 2. A roller 5 is matched in the positioning groove 4. The roller 5 is mounted on the main body 1 via a torsion spring elastic mechanism. An arc-shaped guide angle 6 is provided on the outer rear part of the connecting arm 2.

[0074] The torsion spring elastic mechanism generates a spring force on the roller 5 toward the front of the main body 1, and the roller 5 can roll back and forth between the positioning groove 4 and the arc-shaped guide angle 6 along the rear of the connecting arm 2.

[0075] The torsion spring elastic mechanism includes a movable shaft 7 disposed inside the roller 5 and a torsion spring 8. One end of the torsion spring 8 is sleeved on the outside of the movable shaft 7 through a ring 9, and the other end is connected to the main body 1 through a support rod 10 and a positioning seat 11. The positioning seat 11 is fixed to the main body 1, and the support rod 10 abuts against the front side of the positioning seat 11.

[0076] The main body 1 has positioning holes 12 on both sides of the moving shaft 7, and the positioning holes 12 limit the movement of the moving shaft 7 in the front-back direction.

[0077] The rotating mechanism includes a front rivet 13 and a bushing 14 coaxially disposed outside the front rivet 13. The bushing 14 is fixed to the front part of the connecting arm 2, while the front rivet 13 is fixed to the main body 1. The bushing 14 is sleeved outside the front rivet 13. The bushing 14 increases the contact area of ​​the rotating mechanism, making the rotation more stable and the service life longer.

[0078] The rear part of the main body 1 is fixed with a rear rivet 15, and the rear part of the tension spring 3 is connected to the rear rivet 15 through a hook.

[0079] The front part of the connecting arm 2 is provided with a hook hole 16, and the front part of the tension spring 3 is connected to the hook hole 16 through a hook body.

[0080] The connecting arm 2 has a positioning platform 17 on its front inner side, and the main body 1 has a limiting plate 18 on its front. The positioning platform 17 matches the limiting plate 18. When the connecting arm rotates until the positioning platform 17 abuts against the limiting plate 18, the maximum opening angle is reached. Figure 6 As shown.

[0081] This utility model replaces the traditional linkage + compression spring system with a "roller-torsion spring" dynamic limiting mechanism, combined with a tension spring to provide basic tension, realizing the hinge opening and closing, self-locking and smooth transition functions. The working process is divided into four stages:

[0082] 1. Closed self-locking state (initial position):

[0083] Under the thrust of the torsion spring 8, the roller 5 is embedded in the positioning groove 4 at the rear of the connecting arm 2;

[0084] The torsion spring 8 applies a continuous forward pressure to the roller 5 via the moving shaft 7, forming a mechanical hard lock;

[0085] Positioning hole 12 restricts the lateral movement of moving shaft 7 and ensures the stability of the locking force direction;

[0086] The tension spring 3 is in the stretched state, providing a retaining force in the closed state;

[0087] 2. Opening process (external force pulls the connecting arm):

[0088] When the user applies force to open the door, the connecting arm 2 rotates counterclockwise around the front rivet 13.

[0089] The positioning groove 4 at the rear of the connecting lever arm 2 pushes the roller 5 backward along the slope, compressing the torsion spring 8;

[0090] Roller 5 rolls upward along the path of the arc-shaped guide angle 6 (disengaging from the positioning groove):

[0091] The arc-shaped guide angle design minimizes the rolling resistance of the roller and prevents it from jamming.

[0092] The pressure of the torsion spring is gradually converted into a guiding force for the roller to roll along the arc surface;

[0093] The tension spring 3 is further stretched to provide a damping sensation when opening the door;

[0094] 3. Fully open (scroll wheel at its highest point):

[0095] When the moving shaft 7 reaches the highest point of the positioning hole 12, the roller 5 reaches the highest point, and at this time, the trigger 2 is at the maximum opening angle;

[0096] 4. Closing process:

[0097] The tension spring 3 first extends and then retracts, pulling the connecting arm 2 to rotate clockwise.

[0098] The arc-shaped guide angle 6 at the rear of the connecting lever arm guides the roller 5 to roll.

[0099] The torsion spring 8 pushes the roller 5 to press against the rear of the trigger 2;

[0100] When the roller 5 slides to the entrance of the positioning groove 4, the thrust of the torsion spring 8 will press the roller 5 into the positioning groove 4 instantly, completing the self-locking and providing obvious closing feedback.

[0101] During the opening and closing process of the hinge, when the opening angle of the door is less than the rebound angle, the hinge generates a force to close the door, and the door will automatically close under the action of the hinge. When the opening angle of the door is greater than the rebound angle, the hinge generates a force to open the door, and the door will automatically open under the action of the hinge until the connecting arm rotates to the point where the positioning platform abuts against the limit plate, reaching the maximum opening angle.

[0102] Finally, it should be noted that the above examples are merely specific embodiments of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A novel hinge structure, comprising a main body (1), a connecting arm (2), and a tension spring (3), characterized in that, The front part of the connecting arm (2) is rotatably connected to the main body (1) through a rotating mechanism. The rear part of the tension spring (3) is connected to the rear part of the main body (1), and the front part is connected to the front part of the connecting arm (2). The rear part of the connecting arm (2) has a positioning groove (4) on the inner side of the tension spring (3). A roller (5) is matched in the positioning groove (4). The roller (5) is installed on the main body (1) through a torsion spring elastic mechanism. The rear outer part of the connecting arm (2) has an arc-shaped guide angle (6).

2. The hinge with a novel structure according to claim 1, characterized in that, The torsion spring elastic mechanism generates a spring force on the roller (5) towards the front of the main body (1), and the roller (5) can roll back and forth between the positioning groove (4) and the arc-shaped guide angle (6) along the rear of the connecting arm (2).

3. The hinge with a novel structure according to claim 2, characterized in that, The torsion spring elastic mechanism includes a movable shaft (7) disposed in the roller (5) and a torsion spring (8). One end of the torsion spring (8) is sleeved on the outside of the movable shaft (7) through a ring (9), and the other end is connected to the main body (1) through a support rod (10) and a positioning seat (11). The positioning seat (11) is fixed to the main body (1), and the support rod (10) abuts against the front side of the positioning seat (11).

4. The hinge with a novel structure according to claim 3, characterized in that, The main body (1) has positioning holes (12) on both sides of the moving shaft (7), and the positioning holes (12) limit the movement of the moving shaft (7) in the front-back direction.

5. The hinge with a novel structure according to claim 1, characterized in that, The rotating mechanism includes a front rivet (13) and a bushing (14) coaxially disposed outside the front rivet (13), wherein the bushing (14) is fixed to the front part of the connecting lever arm (2).

6. The hinge with a novel structure according to claim 1, characterized in that, The rear part of the main body (1) is fixed with a rear rivet (15), and the rear part of the tension spring (3) is connected to the rear rivet (15) through a hook.

7. The hinge with a novel structure according to claim 1, characterized in that, The front part of the connecting arm (2) is provided with a hook hole (16), and the front part of the tension spring (3) is connected to the hook hole (16) through a hook body.

8. The hinge with a novel structure according to claim 1, characterized in that, The front inner side of the connecting arm (2) is provided with a positioning platform (17), and the front of the main body (1) is provided with a limiting plate (18). The positioning platform (17) and the limiting plate (18) are matched.

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