Elastic hinge

Abstract

The utility model relates to the technical field of hinges, and particularly discloses an elastic hinge which comprises a mandrel and a first hinge body, and the first hinge body comprises a first shaft sleeve; the second hinge comprises a second shaft sleeve, the first shaft sleeve and the second shaft sleeve are hinged to the mandrel, an elastic mechanism abutting against the first shaft sleeve is arranged on the second hinge, and when the first hinge and the second hinge get close to each other until a first included angle is formed between the first hinge and the second hinge, the elastic mechanism enables the first hinge and the second hinge to be closed; and when the first hinge and the second hinge are far away from each other until a second included angle is formed between the first hinge and the second hinge, the elastic mechanism enables the first hinge and the second hinge to be opened. The problem that a hinge lacks an automatic opening and closing function is solved.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a spring-loaded hinge. Background Technology

[0002] In daily life, hinges are a common connecting and supporting device, widely used in the opening and closing structures of furniture, doors, windows, boxes, etc.

[0003] Traditional hinges typically only provide basic connection and rotation functions, without an automatic opening and closing mechanism. Publication number CN213980472U discloses a functionally optimized outward-opening folding door, including a door frame. The inner sides of the left and right sides of the door frame are respectively hinged to a left-side folding door mechanism and a right-side folding door mechanism, which are symmetrical and structurally identical. The left-side folding door mechanism includes a first folding door, a second folding door, and a third folding door, with the three folding doors sequentially hinged together.

[0004] When the aforementioned folding door is opened or closed, because the hinges lack an automatic opening and closing function, after the folding door is opened or closed to a certain extent, it is necessary to manually open or close the folding door completely. Utility Model Content

[0005] To address the problem of hinges lacking automatic opening and closing functions, this utility model provides a flexible hinge.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] An embodiment of this utility model provides a flexible hinge, comprising:

[0008] mandrel

[0009] A first hinge, the first hinge including a first bushing;

[0010] The second hinge includes a second bushing. The first bushing and the second bushing are respectively hinged to the spindle. The second hinge is provided with a spring mechanism that abuts against the first bushing. When the first hinge and the second hinge approach each other to form a first angle, the spring mechanism causes the first hinge and the second hinge to close. When the first hinge and the second hinge move away from each other to form a second angle, the spring mechanism causes the first hinge and the second hinge to open.

[0011] According to some embodiments of the present invention, the first bushing includes a circumferential portion, and vertical portions extending along its tangential direction are provided on both sides of the circumferential portion; when the first hinge and the second hinge approach each other to the connection position where the elastic mechanism abuts against the circumferential portion and the vertical portion, the first hinge and the second hinge form the first included angle; when the first hinge and the second hinge move away from each other to the connection position where the elastic mechanism abuts against the connection position where the circumferential portion and the vertical portion are connected, the first hinge and the second hinge form the second included angle.

[0012] According to some embodiments of the present invention, the two vertical portions are symmetrically arranged along the axial direction of the circumferential portion.

[0013] According to some embodiments of the present invention, the first hinge includes a first hinge plate and a reinforcing rib, wherein the reinforcing rib is connected to the first bushing and the first hinge plate.

[0014] According to some embodiments of the present invention, the second bushing includes a mounting groove for mounting the elastic mechanism.

[0015] According to some embodiments of the present invention, the elastic mechanism includes a sliding member that can slide within the mounting groove, the sliding member having an elastic element inside, one end of the elastic element abutting against the sliding member, and the other end abutting against the inner wall of the mounting groove.

[0016] According to some embodiments of the present invention, the sliding member includes a plurality of elastic element grooves, and the elastic element is respectively provided in the plurality of elastic element grooves.

[0017] According to some embodiments of this utility model, the elastic element is a spring.

[0018] According to some embodiments of the present invention, a through groove is provided at the axial center of the second bushing, so that the second bushing forms two ends spaced apart vertically, and the first bushing is located in the through groove and is opposite to the second bushing.

[0019] According to some embodiments of the present invention, the mandrel is fitted with an upper end cover and a lower end cover that cooperate with the first bushing.

[0020] This utility model has at least the following beneficial effects: when the first hinge and the second hinge approach or move away from each other to a certain angle, they will move to the critical point of the elastic mechanism in the stretched or compressed state. At this time, the elastic mechanism will change its state from the stretched state to the compressed state or from the compressed state to the stretched state. Through the action of the elastic force, the first hinge and the second hinge can be closed or opened. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of one embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional view of one embodiment of the present utility model;

[0023] Figure 3 This is an exploded view of one embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the first hinge in one embodiment of the present invention;

[0025] Figure 5 This is a side view of the first hinge in one embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the second hinge in one embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of a sliding component according to an embodiment of the present invention. Detailed Implementation

[0028] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0029] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are 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.

[0030] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.

[0031] An embodiment of this utility model provides a spring-loaded hinge, such as... Figure 1-7 As shown, it includes:

[0032] mandrel 100,

[0033] The first hinge 200 includes a first bushing 210;

[0034] The second hinge 300 includes a second bushing 310. The first bushing 210 and the second bushing 310 are respectively hinged to the spindle 100. The second hinge 300 is provided with a spring mechanism 320 that abuts against the first bushing 210. When the first hinge 200 and the second hinge 300 approach each other to form a first angle, the spring mechanism 320 causes the first hinge 200 and the second hinge 300 to close. When the first hinge 200 and the second hinge 300 move away from each other to form a second angle, the spring mechanism 320 causes the first hinge 200 and the second hinge 300 to open.

[0035] The spindle 100 connects the two hinge sections and allows them to rotate about the spindle 100. The first hinge 200 and the second hinge 300 each include a first bushing 210 and a second bushing 310. The bushings are part of the hinge and are hinged to the spindle 100, allowing the hinges to rotate about the spindle 100. A spring mechanism 320 is disposed on the second hinge 300 and abuts against the first bushing 210. The function of the spring mechanism 320 is to close the two hinges by elastic force when the first hinge 200 and the second hinge 300 approach each other to form a first angle; and to open the two hinges when they move away from each other to form a second angle. The first angle or the second angle is a critical angle that can change the state of the spring mechanism 320. The spring mechanism 320 is designed to allow the hinge to close and open automatically without external force. This automatic mechanism can be a spring, an elastic material, or other type of elastic device.

[0036] The working principle of this utility model is as follows: When the first hinge 200 and the second hinge 300 approach or move away from each other to a certain angle, they will move to the critical point of the elastic mechanism 320 in the stretched or compressed state. At this time, the elastic mechanism 320 will change its state from the stretched state to the compressed state or from the compressed state to the stretched state. Through the action of elasticity, the first hinge 200 and the second hinge 300 can be closed or opened.

[0037] In some embodiments, the first bushing 210 includes a circumferential portion 220, and vertical portions 230 extending along its tangential direction are provided on both sides of the circumferential portion 220; when the first hinge 200 and the second hinge 300 approach each other to the connection position where the elastic mechanism 320 abuts against the circumferential portion 220 and the vertical portion 230, the first hinge 200 and the second hinge 300 form a first included angle; when the first hinge 200 and the second hinge 300 move away from each other to the connection position where the elastic mechanism 320 abuts against the connection position where the circumferential portion 220 and the vertical portion 230 are connected, the first hinge 200 and the second hinge 300 form a second included angle.

[0038] The circumferential portion 220 of the first bushing 210 is its main body, typically circular or nearly circular, and rotates around the spindle 100. This portion is the center of hinge rotation and the part that is hinged to the spindle 100. Vertical portions 230 extending tangentially are provided on both sides of the circumferential portion 220, meaning they form a 90-degree angle with the edge of the circumferential portion 220. These vertical portions 230 extend outward from the circumferential portion 220, forming a structure perpendicular to the plane of rotation.

[0039] In this embodiment, the elastic mechanism 320 is in a compressed state when it abuts against the circumferential portion 220. When the first hinge 200 and the second hinge 300 move closer or further away from each other to the connection position of the circumferential portion 220 and the vertical portion 230, the elastic mechanism 320 will move from the circumferential portion 220 into the vertical portion 230. At this time, the distance between the elastic mechanism 320 and the first bushing 210 will increase, causing the elastic mechanism 320 to have a tendency to spring open. Under the action of the elastic force, the elastic mechanism 320 will move to one side of the vertical portion 230, thereby realizing the closing or opening of the first hinge 200 and the second hinge 300.

[0040] Furthermore, the two vertical portions 230 are arranged symmetrically along the axial direction of the circumferential portion 220.

[0041] The vertical portions 230 are arranged symmetrically along the axis of the circumferential portion 220, meaning that they extend with the same length and angle on both sides of the circumferential portion, thus providing a balanced structure.

[0042] Furthermore, the first hinge 200 includes a first hinge plate 240 and a reinforcing rib 250, the reinforcing rib 250 being connected to the first bushing 210 and the first hinge plate 240.

[0043] The reinforcing rib 250 is used to enhance the connection strength between the first hinge plate 240 and the first bushing 210. The reinforcing rib 250 can be raised, ribbed, or any other form to provide additional support and rigidity. This helps prevent damage or deformation due to frequent use, heavy loads, or impacts.

[0044] In some embodiments, the second bushing 310 includes a mounting groove 330 for mounting the elastic mechanism 320.

[0045] The mounting slot 330 is used to accommodate the spring mechanism 320. This slot can be rectangular, circular, or other shapes, depending on the design and installation requirements of the spring mechanism 320. By providing the mounting slot 330 on the second bushing 310, the stable installation and positioning of the spring mechanism 320 can be ensured. This helps ensure the reliability and consistency of the spring mechanism 320 during hinge operation. The mounting slot 330 allows the use of different types of spring mechanisms 320, such as springs, rubber pads, or other elastic materials. This flexibility allows the hinge to be customized to different application requirements.

[0046] Furthermore, the elastic mechanism 320 includes a sliding member 340 that can slide within the mounting groove 330. An elastic member 350 is provided inside the sliding member 340. One end of the elastic member 350 abuts against the sliding member 340, and the other end abuts against the inner wall of the mounting groove 330.

[0047] The slider 340 can slide freely within the mounting groove 330 of the second bushing 310. This design allows the slider 340 to move along the mounting groove 330 as the first hinge 200 and the second hinge 300 approach or move away. The elastic element 350 is a component that provides closing and opening forces, typically made of springs, rubber, or other elastic materials. One end of the elastic element 350 abuts against the slider 340, and the other end abuts against the inner wall of the mounting groove 330. Thus, when the first hinge 200 and the second hinge 300 approach or move away, the position of the slider 340 changes, causing a change in the state of the elastic element 350. The elastic element 350 then drives the slider 340 to exert a force on the first hinge 200 and the second hinge 300, thereby achieving the closing or opening of the first hinge 200 and the second hinge 300.

[0048] Furthermore, the sliding member 340 includes multiple elastic element grooves 360, and each of the multiple elastic element grooves 360 is provided with an elastic element 350.

[0049] Multiple elastic element slots 360 are designed within the slider 340, each slot accommodating one elastic element 350. The arrangement of multiple elastic elements 350 provides a more uniform force distribution, thereby enhancing the hinge's stability and durability. This uniform force distribution helps reduce damage caused by localized overload.

[0050] Furthermore, the elastic element 350 is a spring.

[0051] In some embodiments, a through groove 370 is provided at the axial center of the second bushing 310, so that the second bushing 310 forms two ends spaced apart vertically, and the first bushing 210 is located in the through groove 370 and is opposite to the second bushing 310.

[0052] In some embodiments, the spindle 100 is fitted with an upper end cap 110 and a lower end cap 120 that cooperate with the first bushing 210.

[0053] The upper end cap 110 and the lower end cap 120 are two components fixed to the mandrel 100, located at the upper and lower parts of the first bushing 210, respectively. These end caps can be round, square, or other shapes to suit the size and shape of the mandrel 100 and the first bushing 210. One of the main functions of the end caps is to protect the mandrel 100 and the first bushing 210 from external factors (such as dust, moisture, impact, etc.), thereby extending the service life of the hinge. The end caps can increase the stability of the hinge, especially under heavy loads or frequent operation. They can prevent unnecessary movement or rotation of the first bushing 210 on the mandrel 100.

[0054] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A flexible hinge, characterized in that, include: mandrel (100), The first hinge (200) includes a first bushing (210); The second hinge (300) includes a second bushing (310). The first bushing (210) and the second bushing (310) are respectively hinged to the spindle (100). The second hinge (300) is provided with a spring mechanism (320) that abuts against the first bushing (210). When the first hinge (200) and the second hinge (300) approach each other to form a first angle, the spring mechanism (320) causes the first hinge (200) and the second hinge (300) to close. When the first hinge (200) and the second hinge (300) move away from each other to form a second angle, the spring mechanism (320) causes the first hinge (200) and the second hinge (300) to open.

2. The elastic hinge according to claim 1, characterized in that, The first bushing (210) includes a circumferential portion (220), and vertical portions (230) extending along its tangential direction are provided on both sides of the circumferential portion (220). When the first hinge (200) and the second hinge (300) approach each other to the connection position where the elastic mechanism (320) abuts against the circumferential portion (220) and the vertical portion (230), the first hinge (200) and the second hinge (300) form the first included angle. When the first hinge (200) and the second hinge (300) move away from each other to the connection position where the elastic mechanism (320) abuts against the connection position where the circumferential portion (220) and the vertical portion (230) are connected, the first hinge (200) and the second hinge (300) form the second included angle.

3. A spring-loaded hinge according to claim 2, characterized in that, The two vertical portions (230) are arranged symmetrically along the axial direction of the circumferential portion (220).

4. A spring-loaded hinge according to claim 3, characterized in that, The first hinge (200) includes a first hinge plate (240) and a reinforcing rib (250), wherein the reinforcing rib (250) is connected to the first bushing (210) and the first hinge plate (240).

5. A spring-loaded hinge according to any one of claims 1 to 4, characterized in that, The second bushing (310) includes a mounting groove (330) for mounting the elastic mechanism (320).

6. A spring-loaded hinge according to claim 5, characterized in that, The elastic mechanism (320) includes a sliding member (340) that can slide within the mounting groove (330). An elastic member (350) is provided inside the sliding member (340). One end of the elastic member (350) abuts against the sliding member (340), and the other end abuts against the inner wall of the mounting groove (330).

7. A spring-loaded hinge according to claim 6, characterized in that, The sliding member (340) includes a plurality of elastic element grooves (360), and the elastic element (350) is respectively provided in the plurality of elastic element grooves (360).

8. A spring-loaded hinge according to claim 7, characterized in that, The elastic element (350) is a spring.

9. A spring-loaded hinge according to any one of claims 1 to 4, characterized in that, The second bushing (310) has a through groove (370) at the axial center position, so that the second bushing (310) forms two ends spaced apart vertically. The first bushing (210) is located in the through groove (370) and is opposite to the second bushing (310).

10. A spring-loaded hinge according to any one of claims 1 to 4, characterized in that, The spindle (100) is fitted with an upper end cap (110) and a lower end cap (120) that cooperate with the first bushing (210).

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