A silent, buffer-type hinge

Abstract

This utility model relates to the field of hinges, specifically a silent, buffer-type hinge. The utility model includes: a first hinge, a second hinge, and a fastening bolt. The first hinge includes a first fixing block, a first rotating rod, and a first disc portion. The first fixing block is fixed to one end of the first rotating rod, and the first disc portion is fixed to the other end of the first rotating rod. A rubber pad is provided inside the first disc portion. The second hinge includes a second fixing block, a second rotating rod, and a second disc portion. The second fixing block is fixed to one end of the second rotating rod, and the second disc portion is fixed to the other end of the second rotating rod. The second disc portion has an array of ball holes, each containing a ball. A cover plate is fixed to the outside of the second disc portion, with a second ball hole on the cover plate matching the ball. The ball passes through the second ball hole and contacts the rubber pad. The fastening bolt passes through the second disc portion and is threadedly connected to the first disc portion. The overall structure is simple and easy to replace.

Description

Technical Field

[0001] This utility model relates to the field of hinges, and specifically to a silent, buffer-type hinge. Background Technology

[0002] A hinge is a mechanical device used to connect two components (such as a door frame and a leaf frame, a shop window frame and a glass door) and allow them to rotate relative to each other. It is widely used in furniture, construction, and display windows. Its core function is to enable the opening and closing of the components, and by adjusting the rotational resistance, the opening and closing speed is controlled, thus improving the user experience.

[0003] Traditional shop window hinges rely on springs and leaf springs for cushioning and resistance control. The springs' expansion and contraction generate a counterforce to counteract the impact of opening and closing, thus achieving a cushioning effect. However, this type of structure has significant drawbacks: firstly, the springs and leaf springs require a complex transmission structure, resulting in a cumbersome overall structure and difficult assembly; secondly, the elastic components are prone to fatigue failure under long-term stress (such as spring breakage or leaf spring deformation), and damage necessitates replacing the entire hinge or the entire elastic component set. This not only complicates the repair process but also significantly increases replacement costs, affecting the long-term stable use of the shop window. Utility Model Content

[0004] This invention provides a silent, buffer-type hinge to address the problems of existing technologies.

[0005] The objective of this utility model can be achieved through the following technical solution: A silent buffer hinge includes: hinge one, hinge two, and fastening bolt. Hinge one includes a fixing block one, a rotating rod one, and a disc part one. The fixing block one is fixed to one end of the rotating rod one, and the disc part one is fixed to the other end of the rotating rod one. A rubber pad is provided inside the disc part one. Hinge two includes a fixing block two, a rotating rod two, and a disc part two. The fixing block two is fixed to one end of the rotating rod two, and the disc part two is fixed to the other end of the rotating rod two. Ball holes one are arranged in an array on the disc part two. A ball is provided inside the ball holes one. A cover plate is fixed to the outside of the disc part two. The ball holes two on the cover plate match the ball. The ball passes through the ball holes two and contacts the rubber pad. The fastening bolt passes through the disc part two and is threadedly connected to the disc part one.

[0006] In a further improvement, a snap-on cover is attached to the outer side of the disc portion, and the snap-on cover has a through hole in the center through which a fastening bolt passes.

[0007] A further improvement is made to the fastening bolt, which is an internal hexagonal fixing bolt.

[0008] In a further improvement, a circular groove is provided inside the disc portion, the rubber pad has a T-shaped cross-section, and the lower end of the rubber pad is engaged in the circular groove.

[0009] In a further improvement, the sphere is made of steel.

[0010] In a further improvement, the first fixing block is fixedly connected to one end of the first rotating rod by bolts, and the first fixing block is provided with a first mounting hole. The second fixing block is fixedly connected to one end of the second rotating rod by bolts, and the second fixing block is provided with a second mounting hole.

[0011] Compared with the prior art, the beneficial effects of this utility model's silent buffer hinge are:

[0012] The rubber pad is an elastic material that can absorb the impact force during the rotation when it comes into contact with the ball, and avoid direct friction between metal parts, thus reducing noise at the source. It is especially suitable for window display scenarios where quietness is required.

[0013] By adjusting the tightness of the fastening bolts, the rotation resistance can be precisely controlled to adapt to the needs of shop window doors of different weights.

[0014] By abandoning traditional elastic components such as springs, resistance adjustment is achieved through a simple combination of "balls, rubber pads, and bolts," reducing vulnerable parts. Furthermore, the overall design has fewer components and a simpler connection method. If the rubber pads or balls wear out, they can be replaced individually without replacing the entire hinge, significantly reducing maintenance costs. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the present invention.

[0016] Figure 2 This is a top view of the structure of this utility model.

[0017] Figure 3 This is a structural schematic diagram of a cross-sectional view of the present invention.

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

[0019] Figure 5 This is a schematic diagram of the structure of hinge one in this utility model.

[0020] In the diagram, 1-Hinge 1, 11-Fixing Block 1, 111-Mounting Hole 1, 12-Rotating Rod 1, 13-Disc Part 1, 131-Circular Groove, 14-Rubber Pad, 2-Hinge 2, 21-Fixing Block 2, 211-Mounting Hole 2, 22-Rotating Rod 2, 23-Disc Part 2, 231-Ball Hole 1, 232-Ball, 24-Cover Plate, 241-Ball Hole 2, 3-Fasting Bolt, 4-Cover, 41-Through Hole. Detailed Implementation

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] The following is a description of the embodiments and appendices. Figures 1-5 The technical solution of this utility model will be further described below.

[0023] Example 1

[0024] A silent, buffer-type hinge includes: a first hinge 1, a second hinge 2, and a fastening bolt 3. The first hinge 1 includes a fixing block 11, a rotating rod 12, and a disc portion 13. The fixing block 11 is fixed to one end of the rotating rod 12, and the disc portion 13 is fixed to the other end of the rotating rod 12. A rubber pad 14 is provided inside the disc portion 13. The second hinge 2 includes a second fixing block 21, a second rotating rod 22, and a disc portion 23. The fixing block 21 is fixed to the second rotating rod 22. At one end of 22, the second disk portion 23 is fixed to the other end of the second rotating rod 22. The second disk portion 23 is provided with an array of ball holes 231. A ball 232 is provided inside the ball holes 231. A cover plate 24 is fixed to the outside of the second disk portion 23. The cover plate 24 has a ball hole 241 that matches the ball 232. The ball 232 passes through the ball hole 241 and contacts the rubber pad 14. The fastening bolt 3 passes through the second disk portion 23 and is threadedly connected to the first disk portion 13.

[0025] like Figures 1-5 As shown, the working principle of this utility model is as follows:

[0026] Hinges 1 and 2 are rotatably connected through disc 13 and disc 23. Fastening bolts 3 pass through disc 23 and are threadedly connected to disc 13, forming an adjustable connection structure.

[0027] A ball 232 is installed in the ball hole 231 arranged in an array on the second disk part 23. The cover plate 24 limits the ball 232 through the ball hole 241 to prevent the ball from falling off, so that one end of the ball 232 is stably in contact with the rubber pad 14 inside the first disk part 13.

[0028] When the fastening bolt 3 is tightened, the second disc part 23 moves closer to the first disc part 13, the pressure of the ball 232 on the rubber pad 14 increases, and the friction between the two increases accordingly; when the fastening bolt 3 is loosened, the pressure of the ball on the rubber pad decreases, and the friction decreases accordingly.

[0029] When the hinge rotates (such as when a shop window door opens and closes), the ball 232 slides relative to the rubber pad 14, and the friction is directly converted into rotational resistance. The magnitude of the resistance is adjusted by the tightness of the fastening bolt, thereby controlling the opening and closing speed and achieving a buffering effect. At the same time, the contact between the rubber pad and the ball replaces the direct friction of traditional metal parts, avoiding metal impact or sliding noise and achieving silence.

[0030] The rubber pad, made of elastic material, absorbs the impact force during rotation when in contact with the sphere, and avoids direct friction between metal parts, reducing noise at its source, making it especially suitable for shop window scenarios where quiet operation is crucial. By adjusting the tightness of the fastening bolts, rotational resistance can be precisely controlled, preventing the shop window door from slamming shut due to insufficient resistance or being difficult to open due to excessive resistance, thus adapting to the needs of shop window doors of different weights. It abandons traditional springs and other elastic components, achieving resistance adjustment solely through the simple combination of a sphere, rubber pad, and bolt, reducing vulnerable parts and lowering the probability of failure. Furthermore, with fewer components and a simple connection method, if the rubber pad or sphere wears out, it can be replaced individually without replacing the entire hinge, significantly reducing maintenance costs.

[0031] As a further preferred embodiment, a snap-on cover 4 is snapped onto the outer side of the second disc portion 23, and the snap-on cover 4 has a through hole 41 in the center through which the fastening bolt 3 passes. The snap-on cover 4 is fixed to the outer side of the second disc portion 23 by snap-on connection, and its through hole 41 allows the fastening bolt 3 to pass through, while covering the connection gap between the second disc portion 23 and the first disc portion 13, the head of the fastening bolt, the internal ball, the cover plate, and other components.

[0032] As a further preferred embodiment, the fastening bolt 3 is an internal hexagonal socket head cap screw. The head of the internal hexagonal socket head cap screw has an internal hexagonal recessed structure, requiring a special internal hexagonal wrench for operation. Compared with traditional external hexagonal bolts (which can be tightened with wrenches, pliers, etc.), it has stronger protection against accidental contact. At the same time, the internal hexagonal structure of the bolt and the threaded hole have higher fitting precision and more stable connection strength.

[0033] As a further preferred embodiment, the disc portion 13 is provided with a circular groove 131, and the rubber pad 14 has a T-shaped cross-section, with the lower end of the rubber pad 14 engaging within the circular groove 131. The circular groove 131 provides an installation and positioning structure for the rubber pad 14, with the lower end (wider portion) of the T-shaped rubber pad embedded in the circular groove, and the groove wall restricting the displacement of the rubber pad in the axial direction (axis direction of the fastening bolt) and radial direction (rotation direction of the disc).

[0034] As a further preferred embodiment, the sphere 232 is made of steel ball material, which has high strength, high wear resistance and shape stability.

[0035] As a further preferred embodiment, the first fixing block 11 is fixedly connected to one end of the first rotating rod 12 by bolts, and the first fixing block 11 is provided with a first mounting hole 111. The second fixing block 21 is fixedly connected to one end of the second rotating rod 22 by bolts, and the second fixing block 21 is provided with a second mounting hole 211. The fixing blocks and the rotating rod are connected by detachable bolts, which facilitates the individual replacement of damaged fixing blocks or rotating rods; the mounting holes are used to fix the fixing blocks to the door frame and sash frame of the window respectively by bolts, so as to realize the rigid connection between the hinge and the door / window.

[0036] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A silent buffer type hinge, characterized by, include: The device comprises a hinge 1, a hinge 2, and a fastening bolt. Hinge 1 includes a fixing block 1, a rotating rod 1, and a disc 1. The fixing block 1 is fixed to one end of the rotating rod 1, and the disc 1 is fixed to the other end of the rotating rod 1. A rubber pad is provided inside the disc 1. Hinge 2 includes a fixing block 2, a rotating rod 2, and a disc 2. The fixing block 2 is fixed to one end of the rotating rod 2, and the disc 2 is fixed to the other end of the rotating rod 2. Ball holes 1 are arranged in an array on the disc 2. A ball is placed inside each ball hole 1. A cover plate is fixed to the outside of the disc 2. A ball hole 2 on the cover plate matches the ball on the cover plate. The ball passes through the ball hole 2 and contacts the rubber pad. The fastening bolt passes through the disc 2 and is threadedly connected to the disc 1.

2. A silent-block type hinge according to claim 1, characterized in that, The two outer sides of the disc are fitted with snap-on covers, and the snap-on covers have through holes through which fastening bolts pass.

3. A silent, buffer-type hinge according to claim 1, characterized in that, The fastening bolt is an internal hexagonal fixing bolt.

4. A silent, buffer-type hinge according to claim 1, characterized in that, The disc portion has a circular groove inside, and the rubber pad has a T-shaped cross-section. The lower end of the rubber pad is engaged in the circular groove.

5. A silent, buffer-type hinge according to claim 1, characterized in that, The sphere is made of steel.

6. A silent, buffer-type hinge according to claim 1, characterized in that, The first fixing block is fixedly connected to one end of the first rotating rod by bolts, and the first fixing block is provided with a first mounting hole. The second fixing block is fixedly connected to one end of the second rotating rod by bolts, and the second fixing block is provided with a second mounting hole.

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