Damping buffer hinge

Abstract

The utility model provides a damping buffer hinge which comprises a hinge cup installed on a door body and a connecting base installed on a cabinet body, a transmission assembly is arranged between the hinge cup and the connecting base and comprises an upper swing arm and a lower swing arm, the two ends of the upper swing arm and the two ends of the lower swing arm are hinged to the hinge cup and the connecting base respectively, and the upper swing arm and the lower swing arm are hinged to the connecting base respectively. A cavity is formed in the hinge cup, the transmission assembly is contained in the cavity when the hinge is in a closed state, a first cam and a second cam are arranged at the end, close to the connecting base, of the lower swing arm, a compression spring and a damper are arranged in the connecting base, the first cam abuts against the compression spring, and the second cam abuts against the damper. The second cam is connected with the damper in an abutting mode. In the damping hinge structure, compared with an elastic piece and a damper in the prior art, the damping hinge structure is more convenient to install and lower in production requirement and cost.

Description

Technical Field

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

[0002] Hinges are widely used in furniture, and include hinge cups and connecting seats that are hinged to each other. The hinge cup is fixed to the door panel, and the connecting seat is equipped with a fixing seat fixed to the frame of the furniture. A transmission assembly is installed at the connection between the hinge cup and the connecting seat, and the transmission assembly is connected to a damper to enable the hinge cup to open and close smoothly relative to the connecting seat, and also has a buffering effect to ensure normal and stable use of the furniture.

[0003] The hinge generally uses a compression spring as an elastic part, and is positioned at the hinge of the connecting seat and the upper swing arm through a pin shaft. The buffer cylinder generally has one end pivoted in the connecting seat and the other end pivoted to the transmission assembly. The transmission assembly is pivoted on the connecting seat, and the hinge cup is driven to rotate by the rotation of the transmission assembly to realize the opening and closing of the hinge. Since the installation and matching requirements are high in precision, the production and installation structure of the hinge are more complicated and the production cost is higher. If there are errors between the components, the connection effect is poor and the transmission stability will be reduced. Therefore, it is necessary to further improve the existing hinge structure and technology. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides a damping buffer hinge, including a hinge cup installed on a door body and a connecting seat installed on a cabinet body, a transmission assembly is arranged between the hinge cup and the connecting seat, the transmission assembly includes an upper swing arm and a lower swing arm, the two ends of the upper swing arm and the lower swing arm are respectively hinged to the hinge cup and the connecting seat, a cavity is provided in the hinge cup, and the transmission assembly is accommodated in the cavity when the hinge is in a closed state, wherein a first cam and a second cam are provided on the end of the lower swing arm close to the connecting seat, a compression spring and a damper are arranged in the connecting seat, the first cam abuts against the compression spring, and the second cam abuts against the damper.

[0005] Furthermore, the first cam is arranged to be inclined upward, and the second cam is arranged to be inclined downward.

[0006] Furthermore, a first pressing sleeve is arranged between the first cam and the compression spring, a pressing surface is arranged on the side of the first cam, the first pressing sleeve contacts the pressing surface when the hinge is in a closed state, a protrusion is formed at the end of the pressing surface, a groove is arranged at the end of the first pressing sleeve close to the first cam, and the first cam abuts against the groove when the hinge is in an open state.

[0007] Furthermore, a second pressing sleeve is arranged between the second cam and the damper, and the end surface of the second pressing sleeve close to the first cam is arc-shaped. The surface of the second cam is arc-shaped and matched with the end of the first cam. When the hinge is in the open state, the first cam pushes the second pressing sleeve to move linearly.

[0008] Furthermore, a first accommodating chamber for linear motion of the compression spring and the first pressing sleeve and a second accommodating chamber for linear motion of the damper and the second pressing sleeve are provided in the connecting seat.

[0009] Furthermore, the rear ends of the first accommodating chamber and the second accommodating chamber are respectively provided with adjusting members, which include a door closing speed adjusting member and a damping force adjusting member. The door closing speed adjusting member abuts against one end of the compression spring away from the first cam, and is used to adjust the axial position of the compression spring in the first accommodating chamber. The damping force adjusting member abuts against one end of the damper away from the second cam, and is used to adjust the axial position of the damper in the second accommodating chamber.

[0010] Furthermore, the rear ends of the first accommodating chamber and the second accommodating chamber are radially penetrated with an adjustment groove, and the adjustment member at least includes a driving part and an adjustment part eccentrically arranged on the driving part, the driving part is rotatably arranged in the adjustment groove, and the adjustment part is rotatably arranged in the first accommodating chamber or the second accommodating chamber, so that the compression spring / damper acts on the adjustment part.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the compression spring and the damper are respectively abutted by the first cam and the second cam on the lower swing arm, when the hinge is opened, the first cam pushes and compresses the compression spring to store energy, and when the hinge is closed, the compression spring releases the stored energy and pushes the lower swing arm to rotate, and when the lower swing arm rotates, the second cam presses on the damper, so that the damping force of the damper is applied to the transmission assembly, thereby achieving the buffering effect of the hinge; in this damping hinge structure, this structure is more convenient to install than the previous elastic parts and dampers, and has lower production requirements and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in an opened state.

[0013] Figure 2 It is a schematic diagram of the structure of the utility model in a top view in an opened state.

[0014] Figure 3 yes Figure 2 Schematic cross-sectional view at AA in the middle.

[0015] Figure 4 yes Figure 2 Schematic cross-sectional view at the middle BB.

[0016] Figure 5 It is an explosion schematic diagram of the utility model.

[0017] Figure 6 It is a schematic diagram of the connection between the lower swing arm, the compression spring and the first pressing sleeve when the utility model is in a closed state.

[0018] Figure 7 It is a schematic diagram of the connection between the lower swing arm, the damper and the second pressing sleeve when the utility model is in a closed state.

[0019] Figure 8 It is a three-dimensional structural schematic diagram of the adjusting member in the utility model.

[0020] Fig. 9 It is a side structural schematic diagram of the adjusting member in the utility model.

[0021] Fig.10 yes Fig. 9 Schematic cross-sectional view at CC in the middle.

[0022] In the figure: hinge cup 10, cavity 101, connecting seat 20, first accommodating cavity 201, second accommodating cavity 202, adjusting groove 203, upper swing arm 30, lower swing arm 40, first cam 401, pressing surface 4011, protrusion 4012, second cam 402, compression spring 50, damper 60, first pressing sleeve 70, groove 701, second pressing sleeve 80, adjusting member 90, door closing speed adjusting member 90a, damping force adjusting member 90b, driving part 901, adjusting part 902. DETAILED DESCRIPTION

[0023] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0024] It should be understood that the various steps described in the method implementation of the present utility model can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this respect.

[0025] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0026] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0027] refer to Figures 1 to 10 A damping buffer hinge comprises a hinge cup 10 mounted on a door body and a connecting seat 20 mounted on a cabinet body, a transmission assembly is arranged between the hinge cup 10 and the connecting seat 20, and the transmission assembly comprises an upper swing arm 30 and a lower swing arm 40, and the ends of the upper swing arm 30 and the lower swing arm 40 are respectively hinged to the hinge cup 10 and the connecting seat 20, a cavity 101 is arranged in the hinge cup 10, and the transmission assembly is accommodated in the cavity 101 when the hinge is in a closed state, wherein a first cam 401 and a second cam 402 are arranged on the end of the lower swing arm 40 close to the connecting seat 20, a compression spring 50 and a damper 60 are arranged in the connecting seat 20, and the first cam 401 and the compression spring 402 are arranged on the lower swing arm 40. The spring 50 abuts against the second cam 402 and the damper 60; the spring 50 and the damper 60 are respectively compressed by the first cam 401 and the second cam 402 on the lower swing arm 40 to abut against each other. When the hinge is opened, the first cam 401 pushes and compresses the compression spring 50 to store energy. When the hinge is closed, the compression spring 50 releases the stored energy and pushes the lower swing arm 40 to rotate. When the lower swing arm 40 rotates, the second cam 402 presses on the damper 60, so that the damping force of the damper 60 is applied to the transmission component, thereby realizing the buffering effect of the hinge; in the damping hinge structure, this structure is more convenient to install than the previous elastic parts and dampers 60, and has lower production requirements and costs.

[0028] The first cam 401 is tilted upward, and the second cam 402 is tilted downward. It should be understood that when the transmission assembly is opening, the first cam 401 rotates along the hinge point between the lower swing arm 40 and the connecting seat 20, and approaches the compression spring 50, so that the compression spring 50 realizes compression and energy storage. At the same time, the second cam 402 moves away from the damper 60, so that the damper 60 reaches the maximum stroke. When the transmission assembly is closing, the compression spring 50 releases the stored energy and pushes the first cam 401 away, so that the lower swing arm 40 rotates. At this time, the second cam 402 pushes the damper 60, and the damper 60 provides a buffer for the second cam 402 and the lower swing arm 40, thereby slowing down the closing speed.

[0029] A first pressing sleeve 70 is arranged between the first cam 401 and the compression spring 50, and a pressing surface 4011 is arranged on the side of the first cam 401. When the hinge is in a closed state, the first pressing sleeve 70 contacts the pressing surface 4011, and a protrusion 4012 is formed at the end of the pressing surface 4011. A pit 701 is provided at the end of the first pressing sleeve 70 close to the first cam 401, and the protrusion 4012 abuts against the pit 701 when the hinge is in an open state. To be precise, when the hinge is opened, the first pressing sleeve 70 moves in a straight line under the push of the pressing surface 4011 until the protrusion 4012 abuts against the pit 701 after the hinge is fully opened, thereby realizing the positioning function of the hinge when it is opened.

[0030] A second pressing sleeve 80 is arranged between the second cam 402 and the damper 60. The end surface of the second pressing sleeve 80 close to the first cam 401 is arc-shaped. The surface of the second cam 402 is arc-shaped and matched with the end of the first cam 401. When the hinge is in the open state, the first cam 401 pushes the second pressing sleeve 80 to move in a straight line; to be precise, when the hinge is closed, the second cam 402 acts on the damper 60 through the second pressing sleeve 80, so that the damping force of the damper 60 acts on the transmission assembly, realizing the buffering function when the compression spring 50 releases the stored energy and automatically closes, thereby slowing down the closing speed.

[0031] The connecting seat 20 is provided with a first accommodating chamber 201 for linear motion of the compression spring 50 and the first pressing sleeve 70, and a second accommodating chamber 202 for linear motion of the damper 60 and the second pressing sleeve 80; wherein the rear ends of the first accommodating chamber 201 and the second accommodating chamber 202 are respectively provided with adjusting members 90, and the adjusting members 90 include a door closing speed adjusting member 90a and a damping force adjusting member 90b, the door closing speed adjusting member 90a abuts against one end of the compression spring 50 away from the first cam 401, and is used to adjust the axial position of the compression spring 50 in the first accommodating chamber 201, and the damping force adjusting member 90b abuts against one end of the damper 60 away from the second cam 402, and is used to adjust the axial position of the damper 60 in the second accommodating chamber 202.

[0032] The rear ends of the first accommodating chamber 201 and the second accommodating chamber 202 are radially penetrated with an adjustment groove 203. The adjustment member 90 at least includes a driving portion 901 and an adjustment portion 902 eccentrically arranged on the driving portion 901. The driving portion 901 is rotatably arranged in the adjustment groove 203, and the adjustment portion 902 is rotatably arranged in the first accommodating chamber 201 or the second accommodating chamber 202, so that the compression spring 50 / damper 60 acts on the adjustment portion 902. In this embodiment, by rotating the adjustment member 90 on the first accommodating chamber 201, the driving portion 901 is rotated. The speed regulating surface 901 in contact with the compression spring 50 is offset and changed. To be precise, there are 6 speed regulating surfaces, and adjacent speed regulating surfaces have arc transitions. The ends of the compression spring 50 are respectively in contact with the 6 speed regulating surfaces to achieve 6 compression strengths, thereby realizing multi-speed adjustment of the door closing speed. Similarly, the buffering force of the damper 60 is adjusted by rotating the adjustment member 90 on the second accommodating chamber 202, and the user adjusts it according to the door closing speed to prevent the door from closing too quickly and causing insufficient buffering force, or preventing the door from being closed due to excessive buffering force.

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

Claims

1. A damping buffer hinge, comprising a hinge cup (10) mounted on a door body and a connecting seat (20) mounted on a cabinet body, a transmission assembly is arranged between the hinge cup (10) and the connecting seat (20), the transmission assembly comprises an upper swing arm (30) and a lower swing arm (40), the two ends of the upper swing arm (30) and the lower swing arm (40) are respectively hinged to the hinge cup (10) and the connecting seat (20), a cavity (101) is arranged in the hinge cup (10), and the transmission assembly is received in the cavity (101) when the hinge is in a closed state, characterized in that: A first cam (401) and a second cam (402) are provided on the end of the lower swing arm (40) close to the connecting seat (20); a compression spring (50) and a damper (60) are provided in the connecting seat (20); the first cam (401) abuts against the compression spring (50), and the second cam (402) abuts against the damper (60).

2. A damping and buffering hinge according to claim 1, characterized in that: The first cam (401) is arranged to be inclined upward, and the second cam (402) is arranged to be inclined downward.

3. A damping and buffering hinge according to claim 2, characterized in that: A first pressing sleeve (70) is arranged between the first cam (401) and the compression spring (50), and a pressing surface (4011) is arranged on the side of the first cam (401). When the hinge is in a closed state, the first pressing sleeve (70) contacts the pressing surface (4011), and a protrusion (4012) is formed at the end of the pressing surface (4011). A groove (701) is arranged at the end of the first pressing sleeve (70) close to the first cam (401), and when the hinge is in an open state, the first cam (401) abuts against the groove (701).

4. A damping and buffering hinge according to claim 3, characterized in that: A second pressing sleeve (80) is arranged between the second cam (402) and the damper (60); the end surface of the second pressing sleeve (80) close to the first cam (401) is arranged in an arc shape; the surface of the second cam (402) is arranged in an arc shape, and the second cam (402) is adapted to the end of the first cam (401); when the hinge is in an open state, the first cam (401) pushes the second pressing sleeve (80) to move linearly.

5. A damping and buffering hinge according to claim 4, characterized in that: The connecting seat (20) is provided with a first accommodating chamber (201) for the linear motion of the compression spring (50) and the first pressing sleeve (70) and a second accommodating chamber (202) for the linear motion of the damper (60) and the second pressing sleeve (80).

6. A damping and buffering hinge according to claim 5, characterized in that: The rear ends of the first accommodating chamber (201) and the second accommodating chamber (202) are respectively provided with adjusting members (90), and the adjusting members (90) include a door closing speed adjusting member (90a) and a damping force adjusting member (90b). The door closing speed adjusting member (90a) abuts against one end of the compression spring (50) away from the first cam (401) to adjust the axial position of the compression spring (50) in the first accommodating chamber (201); the damping force adjusting member (90b) abuts against one end of the damper (60) away from the second cam (402) to adjust the axial position of the damper (60) in the second accommodating chamber (202).

7. A damping and buffering hinge according to claim 6, characterized in that: The rear ends of the first accommodating chamber (201) and the second accommodating chamber (202) are radially penetrated with an adjustment groove (203); the adjustment member (90) comprises at least a driving portion (901) and an adjustment portion (902) eccentrically arranged on the driving portion (901); the driving portion (901) is rotatably arranged in the adjustment groove (203); and the adjustment portion (902) is rotatably arranged in the first accommodating chamber (201) or the second accommodating chamber (202), so that the compression spring (50) / damper (60) acts on the adjustment portion (902).

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