A cushion hinge

Abstract

The utility model discloses a kind of buffer hinges, it is related to hinge technical field, including fixed assembly and movable assembly, fixed assembly includes fixed hinge and hydraulic cylinder, the top of fixed hinge is symmetrically welded with fixed ring at both ends, movable assembly includes movable hinge, movable ring, connecting plate and pivot, the utility model is composed of buffer mechanism by hydraulic cylinder, piston rod and return spring, can provide stable damping force in the door body closing process, effectively slow down the closing speed of door body, reduce door closing noise, reduce component damage, improve use safety and comfort, when buffer hinge fails, by disassembling fixed bolt, separating plugboard and slide with fixed ring, and then replacing return spring component, while hydraulic cylinder and piston rod can be replaced, structure design is convenient to disassemble and replace, when failure occurs, it can be quickly repaired and maintained, reduce use cost.

Description

Technical Field

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

[0002] In daily life, hinges, as mechanical devices that connect two solids and allow relative rotation between them, are widely used in various furniture, doors, windows, cabinets and other products. When ordinary door lock hinges are used, the door will quickly hit the door frame or cabinet under the action of gravity or external force because there is no buffer device. This not only produces a lot of noise, but also easily damages the door, door frame or cabinet, shortening its service life. At the same time, the fast-closing door may also cause accidental injury to the user, posing certain safety hazards.

[0003] For example, Chinese patent CN222101823U discloses a buffer hinge, which includes a first hinge assembly and a second hinge assembly that are hinged together. A buffer assembly is provided inside the bushings of the first hinge assembly and the second hinge assembly. The buffer assembly includes a damper and a moving unit disposed inside the bushing.

[0004] Although some door lock hinges with buffer and reset structures have appeared on the market, most existing buffer hinges have complex structures and unstable buffering effects. Their buffering performance deteriorates during long-term use, and the buffer reset structure cannot be replaced, making them inconvenient for practical application and promotion. To address the above problems, a new type of buffer hinge is proposed. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art and to propose a buffer hinge.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a buffer hinge, comprising a fixed component and a movable component. The fixed component includes a fixed hinge and a hydraulic cylinder. Fixed rings are symmetrically welded to the top two ends of the fixed hinge. The movable component includes a movable hinge, a movable ring, a connecting plate, and a rotating shaft. Two fixed rings are symmetrically arranged at both ends of the movable ring. A first wear-resistant pad is fixedly connected to the outer edge of the side of the fixed ring that contacts the movable ring. A second wear-resistant pad is fixedly connected to the outer edge of the side of the movable ring that contacts the fixed ring. Insert plates are inserted into the ends of the two fixed rings away from the movable ring, and notches are opened at the ends of the two fixed rings away from the movable ring. A mounting plate is welded to one end of the insert plate, and a sliding plate is welded to the other end of the insert plate. The two sides of the sliding plate are slidably installed with the notches.

[0007] Preferably, extension plates are symmetrically welded on both sides of the fixed hinge, and a threaded hole is opened at one end of the mounting plate. A fixing bolt is threaded to the top of the threaded hole, and the bottom end of the fixing bolt is threaded to the top of the extension plate.

[0008] Preferably, one end of the movable ring has a slot through it, the connecting plate is welded to the middle of the rotating shaft, and the connecting plate is located inside the slot.

[0009] Preferably, a return spring is provided on the outer side of both ends of the rotating shaft, and both ends of the rotating shaft pass through two fixing rings and are rotatably connected to the inner side of the insert plate.

[0010] Preferably, the bottom of the protective cover is fixedly installed with the top of the fixed hinge, one end of the hydraulic cylinder is rotatably installed inside the protective cover, and the other end of the hydraulic cylinder is fitted with a piston rod, one end of the piston rod being rotatably connected to the outer side of the movable ring.

[0011] Preferably, the top of both the fixed hinge and the movable hinge has multiple mounting holes evenly distributed.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the buffer hinge, through a buffer mechanism composed of a hydraulic cylinder, a piston rod, and a return spring, enables the door to move in the closing direction under the elastic force of the return spring during the closing process. At the same time, the hydraulic cylinder and piston rod provide stable damping force, effectively slowing down the closing speed of the door, preventing the door from rapidly impacting the door frame or cabinet, reducing closing noise, minimizing component damage, and improving safety and comfort in use.

[0014] 2. In this utility model, when the buffer hinge malfunctions, the insert plate and slide plate can be separated from the fixed ring by disassembling the fixing bolts, thereby replacing the return spring component. At the same time, the hydraulic cylinder and piston rod can also be replaced. The structural design facilitates disassembly and replacement, and when a malfunction occurs, it can be quickly repaired and maintained, reducing the cost of use. Meanwhile, wear-resistant pads one and two made of polytetrafluoroethylene are provided on the side where the fixed ring and the moving ring are in contact. Wear-resistant pads one and two can effectively reduce the friction between the two and reduce the degree of wear. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a buffer hinge proposed in this utility model;

[0016] Figure 2 This is a top view schematic diagram of a buffer hinge proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the movable ring of a buffer hinge proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the moving ring and fixed ring of a buffer hinge proposed in this utility model;

[0019] Figure 5 This is a schematic diagram showing the connection between the pivot and the return spring of a buffer hinge proposed in this utility model.

[0020] Legend: 1. Fixed component; 2. Moving component; 3. Mounting hole; 11. Fixed hinge; 12. Protective cover; 13. Hydraulic cylinder; 14. Retaining ring; 15. Piston rod; 16. Wear-resistant gasket one; 17. Notch; 18. Extension plate; 19. Insert plate; 110. Mounting plate; 111. Slide plate; 112. Threaded hole; 113. Fixing bolt; 21. Moving hinge; 22. Moving ring; 23. Slot; 24. Wear-resistant gasket two; 25. Connecting plate; 26. Rotating shaft; 27. Return spring. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figures 1-5 As shown, this utility model provides a buffer hinge, including a fixed component 1 and a movable component 2. The fixed component 1 includes a fixed hinge 11 and a hydraulic cylinder 13. Fixed rings 14 are symmetrically welded to both ends of the top of the fixed hinge 11. The movable component 2 includes a movable hinge 21, a movable ring 22, a connecting plate 25, and a rotating shaft 26. Two fixed rings 14 are symmetrically arranged at both ends of the movable ring 22. A wear-resistant pad 16 is fixedly connected to the outer edge of the side of the fixed ring 14 that contacts the movable ring 22, and a second wear-resistant pad 2 is fixedly connected to the outer edge of the side of the movable ring 22 that contacts the fixed ring 14. 4. Insert plates 19 are inserted into the ends of the two fixed rings 14 away from the movable ring 22, and notches 17 are opened at the ends of the two fixed rings 14 away from the movable ring 22. Mounting plates 110 are welded to one end of the insert plates 19, and sliding plates 111 are welded to the other end of the insert plates 19. The two sides of the sliding plates 111 are slidably installed with the notches 17. Extension plates 18 are symmetrically welded to both sides of the fixed hinge 11. A threaded hole 112 is opened at one end of the mounting plate 110. A fixing bolt 113 is threadedly connected to the top of the threaded hole 112, and the bottom end of the fixing bolt 113 is threadedly connected to the top of the extension plate 18.

[0024] The specific setup and function of this embodiment are described below: The buffer hinge consists of a fixed component 1 and a movable component 2. In actual installation and use, the fixed hinge 11 is first installed on the door frame or cabinet with screws to ensure that the fixed hinge 11 is installed firmly and in the correct position. Then, the movable hinge 21 is fixedly connected to the door with screws, so that the center positions of the movable hinge 21 and the fixed hinge 11 are aligned. The connecting plate 25 in the middle of the rotating shaft 26 is inserted into the slot 23. The two ends of the rotating shaft 26 pass through the center holes of the movable ring 22 and the fixed ring 14 respectively, realizing the rotational connection between the movable ring 22 and the fixed ring 14. Next, the return spring 27 is sleeved on the rotating shaft 26, and one end of the return spring 27 extends out of the fixed ring 14 through the notch 17 (e.g., Figure 3 As shown), then the other end of the return spring 27 is clipped onto one end of the rotating shaft 26 (as shown). Figure 5 (as shown);

[0025] At this point, slide the slide plate 111 along the notch 17 until the slide plate 111 is completely aligned with the notch 17. Then, one end of the insert plate 19 is smoothly inserted into one end of the fixing ring 14. At the same time, one end of the rotating shaft 26 is inserted into the inner hole of the insert plate 19. At this point, the mounting plate 110 is exactly located at the top of the extension plate 18, and the threaded hole 112 of the mounting plate 110 is aligned with the hole of the extension plate 18. Then, use the fixing bolt 113 to fix the mounting plate 110 onto the extension plate 18, thereby completing the installation of the insert plate 19 and the fixing ring 14. Finally, fix the hydraulic cylinder 13 and the protective cover 12 onto the fixed hinge 11, so that the piston rod 15 is connected to the movable hinge 21, ensuring that the hydraulic cylinder 13 and the piston rod 15 can work normally.

[0026] When the buffer hinge malfunctions, such as a weakened buffering effect or failure of the return spring 27, the insert plate 19 and slide plate 111 can be separated from the fixed ring 14 by disassembling the fixing bolt 113, thereby replacing the return spring 27 component. At the same time, the hydraulic cylinder 13 and piston rod 15 can also be replaced. The structural design facilitates disassembly and replacement, enabling quick repair and maintenance when a malfunction occurs, reducing operating costs. Meanwhile, a wear-resistant pad 16 is fixedly connected to the outer edge of the side of the fixed ring 14 that contacts the movable ring 22, and a wear-resistant pad 24 is fixedly connected to the outer edge of the side of the movable ring 22 that contacts the fixed ring 14. Both the wear-resistant pad 16 and the wear-resistant pad 24 are made of polytetrafluoroethylene material, which can effectively reduce friction between the two and reduce the degree of wear.

[0027] Example 2: Figures 1-3As shown, one end of the movable ring 22 has a slot 23 through it. The connecting plate 25 is welded to the middle of the rotating shaft 26 and is located inside the slot 23. The two ends of the rotating shaft 26 are provided with return springs 27. The two ends of the rotating shaft 26 pass through two fixed rings 14 and are rotatably connected to the inside of the insert plate 19. The bottom of the protective cover 12 is fixedly installed with the top of the fixed hinge 11. One end of the hydraulic cylinder 13 is rotatably installed inside the protective cover 12. The other end of the hydraulic cylinder 13 is fitted with a piston rod 15. One end of the piston rod 15 is rotatably connected to the outside of the movable ring 22. The tops of the fixed hinge 11 and the movable hinge 21 are evenly provided with multiple mounting holes 3.

[0028] The overall effect of this embodiment is that when the door needs to be opened, the user applies external force to push the door, and the movable hinge 21 and the movable ring 22 rotate around the pivot 26 relative to the fixed hinge 11. At this time, the return spring 27 is compressed and stores elastic potential energy. During the closing process, the door moves in the closing direction under the elastic force of the return spring 27. At the same time, the movable ring 22 drives the piston rod 15 to move. The piston moves in the hydraulic cylinder 13. The damping medium between the first chamber and the second chamber in the hydraulic cylinder 13 flows through the damping hole on the piston, generating a damping force, slowing down the closing speed of the door, and achieving a buffering effect. Finally, the door closes smoothly. This buffer hinge, through the buffer mechanism composed of the hydraulic cylinder 13, the piston rod 15 and the return spring 27, can provide a stable damping force during the closing process of the door, effectively slowing down the closing speed of the door, avoiding the door from quickly hitting the door frame or cabinet, reducing closing noise, reducing component damage, and improving safety and comfort.

[0029] The usage and working principle of this device are as follows: The buffer hinge consists of a fixed component 1 and a movable component 2. In actual installation and use, one end of the return spring 27 extends out of the fixed ring 14 through the notch 17, and then the other end of the return spring 27 is locked at one end of the rotating shaft 26. At this time, the slide plate 111 is slid along the notch 17 until the slide plate 111 is completely matched with the notch 17. Then, one end of the insert plate 19 is smoothly inserted into one end of the fixed ring 14. The mounting plate 110 is fixed on the extension plate 18 using the fixing bolt 113.

[0030] When the door needs to be opened, the movable hinge 21 and the movable ring 22 rotate around the pivot 26 relative to the fixed hinge 11. At this time, the return spring 27 is compressed and stores elastic potential energy. During the closing process, the door moves in the closing direction under the elastic force of the return spring 27. At the same time, the movable ring 22 drives the piston rod 15 to move. The piston moves in the hydraulic cylinder 13, generating damping force and achieving a buffering effect. This buffer hinge, through the buffering mechanism composed of the hydraulic cylinder 13, the piston rod 15, and the return spring 27, can provide stable damping force during the closing process of the door, effectively slowing down the closing speed of the door. When the buffer hinge malfunctions, the insert plate 19 and the slide plate 111 can be separated from the fixed ring 14 by disassembling the fixing bolt 113, and then the return spring 27 component can be replaced. At the same time, the hydraulic cylinder 13 and the piston rod 15 can also be replaced. The structural design facilitates disassembly and replacement. When a malfunction occurs, it can be quickly repaired and maintained, reducing the cost of use.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A buffer hinge comprising a fixed assembly (1) and a movable assembly (2), the fixed assembly (1) comprising a fixed hinge (11) and a hydraulic cylinder (13), the top of both ends of the fixed hinge (11) being symmetrically welded with a fixed ring (14), the movable assembly (2) comprising a movable hinge (21), a movable ring (22), a connecting plate (25) and a rotating shaft (26), characterized in that: Two fixed rings (14) are symmetrically arranged at two ends of the movable ring (22), and a wear-resistant gasket I (16) is fixedly connected to the outer edge of the side of the fixed ring (14) in contact with the movable ring (22), a wear-resistant gasket II (24) is fixedly connected to the outer edge of the side of the movable ring (22) in contact with the fixed ring (14), the end of the two fixed rings (14) away from the movable ring (22) is inserted with a plug plate (19), and the end of the two fixed rings (14) away from the movable ring (22) is provided with a notch (17), one end of the plug plate (19) is welded with a mounting plate (110), and the other end of the plug plate (19) is welded with a sliding plate (111), and the two sides of the sliding plate (111) are slidably installed in the notch (17).

2. The cushion hinge according to claim 1, wherein: The two sides of the fixed hinge (11) are symmetrically welded with an extension plate (18), one end of the mounting plate (110) is provided with a threaded hole (112), the top of the threaded hole (112) is threadedly connected with a fixing bolt (113), and the bottom end of the fixing bolt (113) is threadedly connected with the top of the extension plate (18).

3. The cushion hinge of claim 1, wherein: One end of the movable ring (22) is provided with a clamping groove (23), and the connecting plate (25) is welded in the middle of the rotating shaft (26), and the connecting plate (25) is arranged inside the clamping groove (23).

4. The bumping hinge of claim 1, wherein: The two ends of the rotating shaft (26) are provided with return springs (27), and the two ends of the rotating shaft (26) are respectively inserted through the two fixed rings (14) and are rotatably connected with the inner side of the plug plate (19).

5. The bumping hinge of claim 1, wherein: The bottom of the protective cover (12) is fixedly installed with the top of the fixed hinge (11), one end of the hydraulic cylinder (13) is rotatably installed with the inside of the protective cover (12), and the other end of the hydraulic cylinder (13) is sleeved with a piston rod (15), and one end of the piston rod (15) is rotatably connected with the outside of the movable ring (22).

6. The bumping hinge of claim 1, wherein: The top of the fixed hinge (11) and the movable hinge (21) is uniformly provided with a plurality of mounting holes (3).

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