Double-opening buffer hinge

Abstract

The utility model discloses a double-open buffer hinge which comprises a base and an axis component arranged in an inner cavity of the base, a shaft seat is fixedly connected with a second connecting plate through a screw, and a first connecting plate is installed on the surface of the second connecting plate through a screw. According to the double-open buffer hinge, the cylinder sleeve rotates to drive the upper cam and the lower cam to rotate, the upper cam and the lower cam extrude the pulley to move up and down, accordingly, the pin shaft is driven to ascend and descend, the spring is extruded, and the buffer effect is achieved through the buffer cylinder.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically a double-opening buffer hinge. Background Technology

[0002] Double-opening soft-close hinges are hinges that can be opened from both inside and outside the door. They are primarily used to connect door frames and door panels, allowing them to open in both directions. The main features of this type of hinge include:

[0003] Structural Features: A double-opening hinge consists of two hinge pieces, each connected at one end to the door frame or door leaf. One hinge piece has a pivot seat extending outwards from its bottom end, containing a pivot mounting hole; the other hinge piece has a pivot sleeve extending outwards, with another pivot mounting hole on the sleeve directly opposite the pivot seat. Additionally, the hinge includes a core, one end of which connects to one hinge piece, and the other end passes through the pivot mounting hole to connect to the other hinge piece.

[0004] Two-way opening function: Double hinges allow the door to open in both directions, that is, from the inside or the outside, providing greater convenience and flexibility of use.

[0005] Buffering function: Some double hinges have a spiral spring inside, and the spring pressure can be adjusted by a hex wrench. This design allows the hinge to buffer when closing, thereby reducing the noise generated by the door hitting the door frame when closing.

[0006] The existing double-opening soft-close hinges require adjusting the spring pressure with a hex wrench to achieve the soft-close effect, which is inconvenient and cannot achieve an automatic and smooth soft-close effect. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a double-opening buffer hinge, which solves the problems of inconvenient operation and inability to achieve automatic buffering effect.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a double-opening buffer hinge, comprising a base, an inner cavity of which is provided with a shaft assembly, the shaft assembly comprising a lower sleeve and an upper sleeve, and a housing fixedly mounted in the inner cavity of the lower sleeve by a second positioning pin, a buffer cylinder fixedly sleeved in the inner cavity of the housing, and a cylinder sleeve rotatably sleeved in the inner cavity of the upper sleeve, a mounting cylinder slidably sleeved in the inner cavity of the cylinder sleeve, and an upper cam and a lower cam fixedly mounted on the surface of the mounting cylinder by a first positioning pin. The inner cavity of the mounting cylinder is provided with a connecting sleeve. The bottom of the connecting sleeve is provided with a spring pressure plate, and the top of the connecting sleeve is provided with an adjusting pressure plate. The surfaces of the connecting sleeve and the mounting cylinder are respectively provided with a first through groove and a second through groove. The inner cavity of the lower sleeve is slidably fitted with a pin, and one end of the pin extends into the inner cavity of the connecting sleeve. The surface of the pin is connected to a pulley through a sliding needle. A spring is provided between the spring pressure plate and the pin. The sliding needle passes through the first through groove and the second through groove, and the pulley is located in the inner cavity of the lower cam and they fit together.

[0009] Preferably, a bearing is provided at one end of the outer shell, the bearing is embedded in the inner wall of the lower sleeve, and one end of the outer shell extends out of the lower sleeve.

[0010] Preferably, the spring is located in the inner cavity of the lower sleeve and matches the inner cavity of the lower sleeve.

[0011] Preferably, the top of the cylinder liner is provided with a cover, and the top of the adjusting pressure plate is provided with an adjusting screw.

[0012] Preferably, the lower sleeve and the upper sleeve are fixedly fitted into the inner cavity of the base.

[0013] Preferably, one end of the cylinder liner and one end of the outer shell are respectively provided with a bearing seat, and the bearing seat is fixedly connected to a second connecting plate by screws, and the surface of the second connecting plate is mounted with a first connecting plate by screws.

[0014] This invention provides a double-opening buffer hinge. Compared with the prior art, it has the following advantages:

[0015] This double-opening buffer hinge rotates via a first and second connecting plate and a bearing seat, causing the upper and lower cams to rotate. This causes the lower cam to press the pulley upwards and slide in the first and second through slots, ultimately moving the pin upwards and pressing the spring between the pin and the bottom of the second through slot. Simultaneously, the buffer cylinder rises with the pin. When the door closes, the cylinder sleeve rotates in the opposite direction, driving the upper and lower cams. The upper cam presses the pulley downwards, and the spring's rebound causes the pin to reset. The pin then presses the buffer cylinder, achieving automatic buffering without the need for a wrench to adjust the spring pressure, making operation more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a partial schematic diagram of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram showing the structural breakdown of this utility model;

[0020] Figure 5 This is a partial disassembly diagram of the structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the 180-degree hinge structure of this utility model.

[0022] In the diagram: 1. Base; 2. First connecting plate; 3. Second connecting plate; 4. Shaft assembly; 41. Lower sleeve; 42. Upper sleeve; 43. Cover; 44. Cylinder liner; 45. Adjusting screw; 46. Upper cam; 47. Lower cam; 48. Pulley; 49. Mounting cylinder; 410. First positioning pin; 411. Pin; 412. Spring; 413. Buffer cylinder; 414. Second positioning pin; 416. Connecting sleeve; 417. First through groove; 418. Second through groove; 419. Adjusting pressure plate; 420. Spring pressure plate; 421. Bearing; 422. Housing; 5. Shaft seat. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 This utility model provides a technical solution: a double-opening buffer hinge, including a base 1 and a bearing 5. The inner cavity of the base 1 is provided with a shaft assembly 4, and the bearing 5 is fixedly connected to a second connecting plate 3 by screws. The surface of the second connecting plate 3 is installed with a first connecting plate 2 by screws. The first connecting plate 2 and the second connecting plate 3 are connected as one piece and connected to the door or window. The base 1 is connected to the frame and can rotate 90 degrees.

[0025] Please see Figure 4-5The shaft assembly 4 includes a lower sleeve 41 and an upper sleeve 42. The lower sleeve 41 and the upper sleeve 42 are fixedly sleeved in the inner cavity of the base 1. The inner cavity of the lower sleeve 41 is fixedly mounted with a housing 422 by a second positioning pin 414. The inner cavity of the housing 422 is fixedly sleeved with a buffer cylinder 413. The inner cavity of the upper sleeve 42 is rotatably sleeved with a cylinder sleeve 44. The inner cavity of the cylinder sleeve 44 is slidably sleeved with a mounting cylinder 49. The surface of the mounting cylinder 49 is fixedly mounted with an upper cam 46 and a lower cam 47 by a first positioning pin 410. The inner cavity of the mounting cylinder 49 is provided with a connecting sleeve 416. The bottom of the connecting sleeve 416 is provided with a spring pressure plate 420, and the top of the connecting sleeve 416 is provided with an adjusting pressure plate 419. The surfaces of the connecting sleeve 416 and the mounting cylinder 49 are respectively provided with a first through groove 417 and a second through groove 418. The inner cavity of the lower sleeve 41 is slidably fitted with a pin 411, and one end of the pin 411 extends into the inner cavity of the connecting sleeve 416. The surface of the pin 411 is connected to a pulley 48 via a sliding needle. A spring 412 is provided between the spring pressure plate 420 and the pin 411. The sliding needle passes through the first through groove 417 and the second through groove 418. The pulley 48 is located in the inner cavity of the lower cam 47 and fits into each other. One end of the outer shell 422 is provided with a bearing 421, which is embedded in the inner wall of the lower sleeve 41. One end of the outer shell 422 extends out of the lower sleeve 41. The rotation of the cylinder liner 44 drives the upper cam 46 and the lower cam 47 to rotate. The upper cam 46 and the lower cam 47 squeeze the pulley 48 to move up and down, thereby driving the pin 411 to rise and fall, which changes the elastic force of the spring 412.

[0026] Furthermore, a cover 43 is provided on the top of the cylinder liner 44, and an adjusting screw 45 is provided on the top of the adjusting plate 419. The adjusting screw 45 can be rotated to drive the connecting sleeve 416 to move, thereby adjusting the pin 411, which in turn adjusts the tension of the spring 412.

[0027] Furthermore, a bearing 421 is fitted onto the bottom end of the housing 422. When the housing 422 rotates, the bearing 421 can prevent friction noise.

[0028] Furthermore, one end of the cylinder liner 44 and one end of the outer shell 422 are respectively connected to the bearing seat 5, and the bearing seat 5 drives the cylinder liner 44 and the outer shell 422 to rotate.

[0029] Please see Figure 6 This is a hinge that can rotate 180 degrees. The difference between this and the hinge in this application lies in the change of the first connecting plate 2 and the second connecting plate 3. Figure 6 There are two sets of first connecting plates 2 and second connecting plates 3, which are connected to the door and window and the frame respectively, and can rotate 190 degrees.

[0030] During operation or use, the base 1 is first installed on the door frame, and the first connecting plate 2 and the second connecting plate 3 are installed on the door leaf. Then, rotating the door leaf will cause the first connecting plate 2 and the second connecting plate 3 to drive the cylinder liner 44 and the outer shell 422 to rotate in the inner cavity of the upper sleeve 42 and the lower sleeve 41. At the same time, due to the positioning of the first positioning pin 410, the upper cam 46 and the lower cam 47 are fixed on the cylinder liner 44. Therefore, the rotation of the cylinder liner 44 will also drive the upper cam 46 and the lower cam 47 to rotate. This will cause the lower cam 47 to press the pulley 48 to move upward and slide in the first through groove 417 and the second through groove 418. Finally, it will drive the pin 411 to move upward, thereby pressing the spring 412 between the bottom of the pin 411 and the second through groove 418, causing the spring 412 to tighten. At the same time, the buffer cylinder 413 will also rise with the pin 411.

[0031] When the door is closed, the reverse rotation of the cylinder liner 44 drives the upper cam 46 and the lower cam 47. The upper cam 46 will squeeze the pulley 48 to move downward, and under the rebound of the spring 412 itself, it will drive the pin 411 to return to its original position. At the same time, the pin 411 will squeeze the buffer cylinder 413, thereby achieving buffering through the buffer cylinder 413.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-opening buffer hinge, comprising a base (1), characterized in that: The inner cavity of the base (1) is provided with a shaft assembly (4). The shaft assembly (4) includes a lower sleeve (41) and an upper sleeve (42). A housing (422) is fixedly mounted inside the lower sleeve (41) via a second positioning pin (414). A buffer cylinder (413) is fixedly sleeved inside the housing (422). A cylinder sleeve (44) is rotatably sleeved inside the upper sleeve (42). A mounting sleeve (49) is slidably sleeved inside the cylinder sleeve (44). An upper cam (46) and a lower cam (47) are fixedly mounted on the surface of the mounting sleeve (49) via a first positioning pin (410). A connecting sleeve (416) is provided inside the mounting sleeve (49), and a spring pressure plate (420) is provided at the bottom of the connecting sleeve (416). The top of the connecting sleeve (416) is provided with an adjusting pressure plate (419), and the surfaces of the connecting sleeve (416) and the mounting cylinder (49) are respectively provided with a first through groove (417) and a second through groove (418). The inner cavity of the lower sleeve (41) is slidably sleeved with a pin (411), and one end of the pin (411) extends into the inner cavity of the connecting sleeve (416). The surface of the pin (411) is connected to a pulley (48) through a sliding needle. A spring (412) is provided between the spring pressure plate (420) and the pin (411). The sliding needle passes through the first through groove (417) and the second through groove (418), and the pulley (48) is located in the inner cavity of the lower cam (47) and fits into each other.

2. A double-opening buffer hinge according to claim 1, characterized in that: One end of the outer shell (422) is provided with a bearing (421), which is embedded in the inner wall of the lower sleeve (41), and one end of the outer shell (422) extends out of one end of the lower sleeve (41).

3. A double-opening buffer hinge according to claim 1, characterized in that: The spring (412) is located in the inner cavity of the lower sleeve (41) and matches the inner cavity of the lower sleeve (41).

4. A double-opening buffer hinge according to claim 1, characterized in that: The top of the cylinder liner (44) is provided with a cover (43), and the top of the adjusting plate (419) is provided with an adjusting screw (45).

5. A double-opening buffer hinge according to claim 1, characterized in that: The lower sleeve (41) and the upper sleeve (42) are fixedly fitted into the inner cavity of the base (1).

6. A double-opening buffer hinge according to claim 1, characterized in that: One end of the cylinder liner (44) and one end of the outer shell (422) are respectively provided with a bearing seat (5), and the bearing seat (5) is fixedly connected to a second connecting plate (3) by screws, and the surface of the second connecting plate (3) is installed with a first connecting plate (2) by screws.

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