Damping type buffering hinge

Abstract

The invention provides a damping type buffering hinge, and mainly relates to the technical field of hinges. A damping type buffering hinge comprises a concave hinge piece, a convex hinge piece, a connecting assembly and a buffering assembly, the concave hinge piece and the convex hinge piece are rotationally connected through the connecting assembly, the buffering assembly is arranged in the connecting assembly, and the buffering assembly is used for counteracting stress generated when the concave hinge piece and the convex hinge piece rotate relatively. The hinge has the beneficial effects that when the concave hinge piece and the convex hinge piece rotate relatively, the buffer assembly counteracts impact force generated by rotation through the elastic deformation or damping effect, so that the closing speed of the hinge is effectively reduced, impact damage of a door body and a door frame is reduced, the service life is prolonged, and meanwhile the use comfort is improved.

Description

Technical Field

[0001] The invention mainly relates to the technical field of hinges, in particular to a damping buffer hinge. Background Art

[0002] Hinges are mainly used to connect the door frame and the door panel, so that the door can open and close smoothly. During use, when people open or close the door, the door panel will drive the concave hinge piece or convex hinge piece of the hinge to rotate, thereby realizing the opening and closing action of the door.

[0003] However, traditional hinges, due to the lack of an effective buffering mechanism, will produce large collisions and noises when the door is closed quickly. This will not only affect the user experience, but may also cause impact damage to the door body and door frame, shortening its service life. Summary of the Invention

[0004] In order to address the deficiencies of the prior art, the present invention provides a damping buffer hinge, which can effectively slow down the closing speed of the hinge, reduce the impact damage to the door body and door frame, and extend the service life.

[0005] To achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: A damping buffer hinge comprises a concave hinge piece, a convex hinge piece, a connecting assembly, and a buffer assembly. The concave hinge piece and the convex hinge piece are rotatably connected via the connecting assembly. The connecting assembly is provided with a buffer assembly for offsetting the force applied to the concave hinge piece and the convex hinge piece when the concave hinge piece and the convex hinge piece rotate relative to each other. The upper and lower parts of one side of the concave hinge are respectively fixedly installed with a first sleeve, and the middle part of one side of the convex hinge is fixedly installed with a second sleeve. The first sleeve and the second sleeve are both mounted on the connecting assembly.

[0006] The connecting assembly includes a long rotating shaft and a short rotating shaft, and the long rotating shaft and the short rotating shaft are both hollow structures. Limiting gaskets are fixedly installed on the long rotating shaft and the short rotating shaft. The lower end of the long rotating shaft is integrally fixed with a hollow connecting rod, and the connecting rod is inserted into the short rotating shaft and rotatably connected thereto. The upper end of the long rotating shaft is inserted into the first sleeve located above, the lower end of the long rotating shaft is inserted into the upper part of the second sleeve, the lower end of the short rotating shaft is inserted into the inner side of the first sleeve located below, and the upper end of the short rotating shaft is inserted into the lower part of the second sleeve. The long rotating shaft and the short rotating shaft are connected through an adjusting assembly.

[0007] The adjusting assembly includes a rotating sleeve, which is arranged on the outside of the connecting rod, and the front and rear sides of the rotating sleeve are respectively provided with spiral grooves with the same rotation direction, the top of the spiral groove passes through the top of the rotating sleeve and is open, and the front and rear sides of the top of the rotating sleeve are respectively fixedly installed with blocks, and the two blocks are respectively located at the two corresponding top openings of the spiral grooves, a push pin is slidably installed in the connecting rod, and the front and rear sides of the connecting rod are respectively provided with vertically arranged through grooves, and the front and rear sides of the push pin are respectively fixedly provided with limit shafts that slidably cooperate with the spiral grooves, and the limit shafts pass through the through grooves on the same side thereof, the outer side of the upper end of the long rotating shaft and the outer side of the lower end of the rotating sleeve are respectively provided with external guide teeth, and the interior of the first sleeve located above and the interior of the second sleeve are respectively provided with internal guide teeth that cooperate with the corresponding external guide teeth.

[0008] The buffer assembly includes a damper and a buffer spring. The damper is provided in the short rotating shaft. The upper end of the damper movable rod is inserted into the connecting rod and abuts against the lower end of the ejector pin. The buffer spring is movably installed in the long rotating shaft, and the lower end of the buffer spring abuts against the upper end of the ejector pin.

[0009] A spring pad is provided at the bottom of the long rotating shaft, the lower end of the spring pad abuts against the upper end of the ejector pin, and the upper part of the spring pad abuts against the lower end of the buffer spring.

[0010] The upper end of the long rotating shaft and the lower end of the short rotating shaft are respectively provided with internal threaded connectors, and the internal threaded connectors are threadedly fitted with adjustment caps. The damper and buffer spring are respectively in contact with the corresponding adjustment caps, and the outer ends of the adjustment caps are provided with internal hexagonal grooves. The outsides of the internal threaded connectors are detachably fitted with decorative caps and rubber plugs.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. This device effectively offsets the impact force of hinge rotation through the buffer component, avoiding collision and noise when opening and closing the door, greatly improving user comfort and reducing noise pollution; it can also slow down the closing speed, reduce impact damage, and extend the life of the door body and hinge; the dual-axis structure and adjustment components enhance the load-bearing capacity and realize angle fine-tuning, ensuring structural stability and safety in use, with outstanding comprehensive advantages.

[0012] 2. The rotating sleeve of this hinge adopts an open spiral groove structure, which facilitates the quick sliding in or out of the limit shaft, thereby improving assembly efficiency; at the same time, during installation or maintenance, the buffer component can be easily disassembled, replaced or debugged, improving the maintainability and applicability of the hinge; the open structure does not affect the guiding performance, while taking into account practicality and convenience, and the structure is reasonable, the force is balanced, and it is not easy to break or damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a schematic diagram of the structural decomposition of the present invention; Figure 4 It is a schematic cross-sectional view of the present invention; Figure 5 It is a schematic diagram of the assembly of the long rotating shaft and the short rotating shaft of the present invention; Figure 6 It is a schematic structural diagram of the long rotating shaft of the present invention; Figure 7 It is a partial structural schematic diagram of the buffer assembly of the present invention; Figure 8 It is a structural schematic diagram of the rotary sleeve of the present invention; Figure 9 It is a structural diagram of a rotary sleeve in the prior art.

[0014] The numbers shown in the accompanying drawings are: 10, concave hinge; 101, first sleeve; 20, convex hinge; 201, second sleeve; 30, connecting assembly; 301, long rotating shaft; 302, short rotating shaft; 303, limiting gasket; 304, connecting rod; 305, through groove; 40, buffer assembly; 401, damper; 402, buffer spring; 403, spring washer; 50, adjusting assembly; 501, rotating sleeve; 502, spiral groove; 503, ejector pin; 504, limiting shaft; 505, stopper; 506, plane bearing; 60, adjusting cap; 601, decorative cap; 602, rubber plug. DETAILED DESCRIPTION

[0015] The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0016] Example: A damping buffer hinge like Figure 1-8 As shown, a damping buffer hinge, its specific structure includes: The concave hinge piece 10, the convex hinge piece 20, the connecting assembly 30, and the buffer assembly 40 are characterized in that: the concave hinge piece 10 and the convex hinge piece 20 are rotatably connected by the connecting assembly 30, and the buffer assembly 40 is provided in the connecting assembly 30. The buffer assembly 40 is used to offset the force applied when the concave hinge piece 10 and the convex hinge piece 20 rotate relative to each other; Among them, the upper and lower parts of one side of the concave hinge 10 are respectively integrally fixed with a first sleeve 101, and the middle part of one side of the convex hinge 20 is integrally fixed with a second sleeve 201. The first sleeve 101 and the second sleeve 201 are both mounted on the connecting component 30.

[0017] The above works as follows: During installation, the concave hinge 10 and the convex hinge 20 are fixed on the door frame and the door panel respectively. When the door is opened or closed, the door panel drives the concave hinge 10 or the convex hinge 20 to rotate. At this time, the concave hinge 10 and the convex hinge 20 rotate relative to each other. At this time, the buffer component 40 stores force through elastic deformation. When the door panel is closed, the buffer component 40 releases the stored energy and slows down the closing speed of the door panel through damping. This design can effectively slow down the closing speed of the hinge, reduce the impact damage to the door body and the door frame, extend the service life, and at the same time improve the comfort of use and reduce noise pollution.

[0018] The connecting assembly 30 includes a long rotating shaft 301 and a short rotating shaft 302. Both the long rotating shaft 301 and the short rotating shaft 302 are hollow structures. Limiting gaskets 303 are fixedly installed on the long rotating shaft 301 and the short rotating shaft 302. The lower end of the long rotating shaft 301 is integrally fixed with a hollow connecting rod 304. The connecting rod 304 is inserted into the short rotating shaft 302 and rotatably connected thereto. The upper end of the long rotating shaft 301 is inserted into the first sleeve 101 located above, the lower end of the long rotating shaft 301 is inserted into the upper part of the second sleeve 201, the lower end of the short rotating shaft 302 is inserted into the inner side of the first sleeve 101 located below, the upper end of the short rotating shaft 302 is inserted into the lower part of the second sleeve 201, and the long rotating shaft 301 and the short rotating shaft 302 are connected by an adjusting assembly 50.

[0019] The long rotating shaft 301 and the short rotating shaft 302 serve as the core of the connecting component 30. The hollow structure provides space for the installation of the internal buffer component 40. When the hinge rotates, the long rotating shaft 301 and the short rotating shaft 302 rotate in coordination. At the same time, the long rotating shaft 301 and the short rotating shaft 302 are respectively inserted into the corresponding first sleeve 101 and the second sleeve 201 to achieve a stable rotational connection between the concave hinge piece 10 and the convex hinge piece 20. The limiting gasket 303 can prevent the concave hinge piece 10 and the convex hinge piece 20 from axial displacement during rotation, thereby improving the structural stability.

[0020] like Figure 7As shown, the adjusting assembly 50 includes a rotating sleeve 501, which is sleeved on the outside of the connecting rod 304, and the lower end of the spiral sleeve 501 abuts against the upper end of the short rotating shaft 302. A plane bearing 506 is sleeved on the connecting rod 304, and the plane bearing 506 is arranged between the rotating sleeve 501 and the short rotating shaft 302. The plane bearing 506 can reduce the friction between the rotating sleeve 501 and the short rotating shaft 302, which is convenient for the rotation of the rotating sleeve 501 and can reduce the wear of the rotating sleeve 501. The front and rear sides of the rotating sleeve 501 are respectively provided with spiral grooves 502 with the same rotation direction, and the top of the spiral groove 502 passes through the top of the rotating sleeve 501 and is open, and the front and rear sides of the top of the rotating sleeve 501 are respectively fixed with stoppers 505. The two stoppers 505 are respectively located at the top openings of the two corresponding spiral grooves 502, and the two The stop block 505 is diagonally arranged, and a push pin 503 is slidably installed in the connecting rod 304, and a vertical through groove 305 is respectively opened on the front and rear sides of the connecting rod 304, and a limit shaft 504 is fixedly installed on the front and rear sides of the push pin 503, which slidably cooperates with the spiral groove 502. The limit shaft 504 passes through the through groove 305 on the same side thereof, and the limit shaft 504 slides with the corresponding through groove 305. The outer part of the upper end of the long rotating shaft 301 and the outer part of the lower end of the rotating sleeve 501 are respectively provided with outer guide teeth, and the inner part of the first sleeve 101 located above and the inner part of the second sleeve 201 are respectively provided with inner guide teeth that cooperate with the corresponding outer guide teeth. When the hinge rotates, the inner guide teeth engage with the corresponding outer guide teeth, so that the long rotating shaft 301 and the rotating sleeve 501 follow the synchronous rotation of the concave hinge piece 10 and the convex hinge piece 20.

[0021] When the rotating sleeve 501 rotates with the convex hinge piece 20, the spiral grooves 502 on the front and rear sides thereof rotate in the same direction, driving the limiting shafts 504 installed on both sides of the ejector pin 503 to move along their spiral directions. The limiting shafts 504 pass through the through grooves 305 of the connecting rod 304, driving the ejector pin 503 to slide vertically in the connecting rod 304, thereby driving the buffer assembly 40 to work through the movement of the ejector pin 503.

[0022] The buffer assembly 40 includes a damper 401 and a buffer spring 402. The damper 401 is provided in the short rotating shaft 302. The upper end of the movable rod of the damper 401 is inserted into the connecting rod 304 and abuts against the lower end of the push pin 503. The buffer spring 402 is movably installed in the long rotating shaft 301, and the lower end of the buffer spring 402 abuts against the upper end of the push pin 503.

[0023] The buffer assembly 40 is composed of a damper 401 and a buffer spring 402; the damper 401 consumes rotational energy through an internal viscous fluid or mechanical structure, and the buffer spring 402 absorbs impact force through elastic deformation, and the two are linked by a push pin 503 to achieve graded buffering during the closing process; when the door is opened, the rotating sleeve 501 rotates with the convex hinge 20, and the spiral grooves 502 on the front and rear sides of the door rotate in the same direction, driving the limiting shafts 504 installed on both sides of the push pin 503 to move upward along their spiral direction, and the limiting shafts 504 drive the push pin 503 to slide upward in the connecting rod 304 and squeeze the buffer spring 402, and the limiting shafts 504 move to the top of the rotating sleeve 501 When the door is closed, the concave hinge piece 10 drives the limiting shaft 504 to move into the spiral groove 502 through the long rotating shaft 301. When the limiting shaft 504 enters the spiral groove 502 again, the buffer spring 402 can quickly release the stored energy, pushing the rotating sleeve 501 to rotate faster, so that the door closes quickly. Due to the setting of the bottom damper 401, it can control the speed at which the top pin 503 moves downward, so that the rotating sleeve 501 can rotate smoothly. The damper 401 is used to achieve smooth braking of the hinge, effectively reducing the instantaneous impact force when the hinge is closed, protecting the door body and hinge structure, and extending the service life.

[0024] A spring washer 403 is provided at the bottom of the long rotating shaft 301. The lower end of the spring washer 403 abuts the upper end of the ejector pin 503, while the upper end of the spring washer 403 abuts the lower end of the buffer spring 402. The spring washer 403 acts as a transition piece between the buffer spring 402 and the ejector pin 503, preventing wear caused by direct pressure from the buffer spring 402 on the ejector pin 503. This reduces friction noise and wear, and improves the reliability and durability of the buffer system.

[0025] like Figure 4 As shown, the upper end of the long rotating shaft 301 and the lower end of the short rotating shaft 302 are respectively provided with internal threaded connectors, and the internal threaded connectors are threadedly fitted with an adjusting cap 60. The damper 401 and the buffer spring 402 are respectively in contact with the corresponding adjusting cap 60, and the outer end of the adjusting cap 60 is provided with an internal hexagonal groove. By rotating the corresponding adjusting cap 60, the position of the damper 401 and the buffer spring 402 can be easily adjusted. The outside of the internal threaded connector can be detachably installed with a decorative cap 601 and a rubber plug 602.

[0026] Adjustment cap 60 threads into the internally threaded connector. Rotating adjustment cap 60 varies the pressure on damper 401 and buffer spring 402, allowing for fine-tuning of their preload and operating conditions. A decorative cap 601 and rubber plug 602 are removably attached to the exterior of the internally threaded connector. Decorative cap 601 enhances the hinge's appearance, while rubber plug 602 protects the internal adjustment mechanism from dust and water. Removing rubber plug 602, decorative cap 601, and adjustment cap 60 facilitates removal of damper 401 or buffer spring 402, facilitating routine maintenance and inspection.

[0027] In the explanation of the present invention, it should be noted that the terms indicating orientation are only for the convenience of description and understanding, and are not the only limitation on the installation position of specific technical features, and do not exclude other possible installation methods.

[0028] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like, indicating positions or relationships, are based on those shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or element referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A damping buffer hinge, comprising a concave hinge piece (10), a convex hinge piece (20), a connecting component (30), and a buffer component (40), characterized in that: The concave hinge piece (10) and the convex hinge piece (20) are rotatably connected via a connecting assembly (30), and a buffer assembly (40) is provided in the connecting assembly (30). The buffer assembly (40) is used to offset the force applied when the concave hinge piece (10) and the convex hinge piece (20) rotate relative to each other; The upper and lower parts of one side of the concave hinge piece (10) are respectively integrally fixedly mounted with a first sleeve (101), and the middle part of one side of the convex hinge piece (20) is integrally fixedly mounted with a second sleeve (201), and both the first sleeve (101) and the second sleeve (201) are sleeved on the connecting assembly (30).

2. The damping buffer hinge according to claim 1, characterized in that: The connecting assembly (30) comprises a long rotating shaft (301) and a short rotating shaft (302), wherein the long rotating shaft (301) and the short rotating shaft (302) are both hollow structures, and a limiting gasket (303) is fixedly installed on the long rotating shaft (301) and the short rotating shaft (302), and a hollow connecting rod (304) is fixedly installed on the lower end of the long rotating shaft (301), and the connecting rod (304) is inserted into the short rotating shaft (302) and is rotatably connected thereto. The upper end of the long rotating shaft (301) is inserted into the first sleeve (101) located above, the lower end of the long rotating shaft (301) is inserted into the upper part of the second sleeve (201), the lower end of the short rotating shaft (302) is inserted into the inner side of the first sleeve (101) located below, the upper end of the short rotating shaft (302) is inserted into the lower part of the second sleeve (201), and the long rotating shaft (301) and the short rotating shaft (302) are connected via an adjustment component (50).

3. The damping buffer hinge according to claim 2, characterized in that: The adjusting assembly (50) includes a rotating sleeve (501), the rotating sleeve (501) is sleeved on the outside of the connecting rod (304), and the front and rear sides of the rotating sleeve (501) are respectively provided with spiral grooves (502) with the same rotation direction, the top of the spiral groove (502) passes through the top of the rotating sleeve (501) and is open, and the front and rear sides of the top of the rotating sleeve (501) are respectively fixedly installed with stoppers (505) in an integrated manner, and the two stoppers (505) are respectively located at the top openings of the two corresponding spiral grooves (502), and a top pin (505) is slidably installed in the connecting rod (304). 03), and the front and rear sides of the connecting rod (304) are respectively provided with vertically arranged through grooves (305), the front and rear sides of the ejector pin (503) are respectively fixed with limit shafts (504) that slide with the spiral groove (502), and the limit shafts (504) respectively pass through the through grooves (305) on the same side thereof, the outer portion of the upper end of the long rotating shaft (301) and the outer portion of the lower end of the rotating sleeve (501) are respectively provided with outer guide teeth, and the inner portion of the first sleeve (101) and the inner portion of the second sleeve (201) located above are respectively provided with inner guide teeth that match the corresponding outer guide teeth.

4. The damping buffer hinge according to claim 3, characterized in that: The buffer assembly (40) includes a damper (401) and a buffer spring (402). The damper (401) is provided in the short rotating shaft (302). The upper end of the movable rod of the damper (401) is inserted into the connecting rod (304) and abuts against the lower end of the ejector pin (503). The buffer spring (402) is movably installed in the long rotating shaft (301), and the lower end of the buffer spring (402) abuts against the upper end of the ejector pin (503).

5. The damping buffer hinge according to claim 4, characterized in that: A spring pad (403) is provided at the bottom of the long rotating shaft (301), the lower end of the spring pad (403) abuts against the upper end of the ejector pin (503), and the upper part of the spring pad (403) abuts against the lower end of the buffer spring (402).

6. The damping buffer hinge according to claim 5, characterized in that: The upper end of the long rotating shaft (301) and the lower end of the short rotating shaft (302) are respectively provided with internal thread connectors, and the internal thread connectors are threadedly fitted with adjustment caps (60), the damper (401) and the buffer spring (402) are respectively in contact with the corresponding adjustment caps (60), and the outer ends of the adjustment caps (60) are provided with internal hexagonal grooves, and the outsides of the internal thread connectors are detachably fitted with decorative caps (601) and rubber plugs (602).

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