Speed-adjustable buffer hinge

Abstract

The utility model discloses a speed-adjustable buffer hinge which comprises a hinge cup, a swing arm and an arm body which are hinged in sequence, a torsion spring is arranged at the joint of the swing arm and the arm body, a shell in sliding fit with the arm body is arranged on the arm body, and a shell position adjusting mechanism used for adjusting the relative position of the shell and the arm body is further arranged on the arm body. A power oil rod and a power lamination are further included, the two ends of the power oil rod make contact with the torsion spring and the shell respectively, the power lamination is hinged to the swing arm and the arm body respectively, and the power lamination is in linkage with the shell. According to the buffering hinge with the adjustable speed, the closing speed of the door plate can be changed by adjusting the maximum telescopic stroke of the power oil rod.

Description

Technical Field

[0001] This utility model relates to the field of door hinges, and more particularly to an adjustable speed buffer hinge. Background Technology

[0002] Cabinet door hinges are devices that allow doors to open and close smoothly and naturally. The hinge arm is mounted on the cabinet body via a base, and the hinge cup is installed on the inside of the cabinet door. To achieve slow closing of the cabinet door, a soft-close hinge is generally used, which utilizes a hydraulic rod as a buffer. For example, the patent with publication number CN219119016U uses a full-angle soft-close hinge. However, the extension and retraction stroke of the hydraulic rod in traditional soft-close hinges cannot be adjusted according to needs, resulting in the cabinet door only starting to close slowly at a fixed angle each time, which cannot adapt to different customers' different needs for closing speed. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable speed buffer hinge, which can change the closing speed of the door panel by adjusting the maximum extension and retraction stroke of the power oil rod.

[0004] To achieve the above objectives, this utility model provides an adjustable speed buffer hinge, comprising a hinge cup, a swing arm, and a body hinged sequentially. A torsion spring is provided at the junction of the swing arm and the body. A housing is provided on the body for sliding cooperation with the swing arm. The body is also provided with a housing position adjustment mechanism for adjusting the relative position of the housing and the body. It also includes a power oil rod and a power plate. The two ends of the power oil rod are in contact with the torsion spring and the housing, respectively. The power plate is hinged to the swing arm and the body, respectively. The power plate is linked with the housing.

[0005] As a further improvement of this utility model, the housing position adjustment mechanism includes a pusher, which is slidably connected to the arm body. The sliding direction of the housing and the pusher relative to the arm body is parallel to the extension and retraction direction of the power rod. One end of the pusher contacts the end of the housing away from the torsion spring. The housing position adjustment mechanism also includes an adjustment member that is linked to the pusher, which is located between the arm body and the pusher.

[0006] As a further improvement of this utility model, the adjusting component is an eccentric knob, which includes an operating body and an eccentric shaft connected to each other; the arm body is provided with an irregular hole, the length L of which is greater than its width W; the operating body is cylindrical and can move and rotate laterally inside the irregular hole, and the eccentric shaft is offset from the center line of the operating body; the pushing component is provided with a shaft hole, and the eccentric shaft is rotatably connected to the shaft hole.

[0007] As a further improvement of this utility model, the pushing member includes a guide plate and an end plate connected to each other, the adjusting member is linked with the guide plate, and the end plate is in contact with the housing.

[0008] As a further improvement of this utility model, the arm body includes an outer arm body and an inner arm body, the inner arm body is located inside the outer arm body and the two are detachably connected by a connector; the outer arm body is hinged to the swing arm, and the power oil rod and the housing are both located inside the outer arm body; the guide plate of the pusher is sandwiched between the outer arm body and the inner arm body, and the end plate of the pusher is located on one side of one end of the inner arm body.

[0009] As a further improvement of this utility model, the guide plate is provided with a clearance hole, and the connector passes through the clearance hole.

[0010] As a further improvement of this utility model, the power rod includes a rod cylinder and a rod core that are sleeved together. One end of the rod cylinder is in contact with a torsion spring, and one end of the rod core is located inside the housing and in contact with one end of the inner wall of the housing. The rod cylinder passes through one end of the housing and the two are slidably engaged.

[0011] As a further improvement of this utility model, one end of the power stack is provided with a power hook, and the housing is provided with a linkage buckle, on which the power hook is hooked.

[0012] Beneficial effects

[0013] Compared with the prior art, the advantages of the adjustable speed buffer hinge of this utility model are:

[0014] 1. When it is necessary to change the closing speed of the door panel (i.e., the swing speed of the hinge cup relative to the arm), the operator can adjust the position of the housing by operating the housing position adjustment mechanism to move the housing relative to the arm, thereby changing the relative distance between the housing and the torsion spring. This will adjust the maximum extension and retraction stroke of the power oil rod, thereby changing the angle at which the door panel begins to close slowly, and thus changing the closing speed of the door panel. This structure does not require disassembling the buffer hinge and replacing the power oil rod, making it easy to operate.

[0015] 2. The movement of the housing is achieved by the pushing component. The adjusting component uses an eccentric knob. By operating the main body of the eccentric knob, its rotation and lateral movement relative to the irregular hole on the arm body can change the position of the pushing component relative to the arm body, thereby changing the position of the housing relative to the arm body. The operation is simple. Due to the hydraulic pressure inside the power rod, the power rod has a tendency to extend, ensuring that the housing is always in contact with the pushing component.

[0016] 3. The guide plate of the pusher is sandwiched between the outer arm body and the inner arm body, which saves space.

[0017] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A three-dimensional view of an adjustable speed buffer hinge;

[0020] Figure 2 A cross-sectional view of an adjustable speed-buffered hinge;

[0021] Figure 3 A three-dimensional view of the adjustable speed-damping hinge of the outer arm body, excluding the outer arm body;

[0022] Figure 4 Front view of the adjustable speed-damping hinge with the outer arm removed;

[0023] Figure 5 This is a structural diagram of the inner arm body and the outer shell;

[0024] Figure 6 A three-dimensional view of the actuator;

[0025] Figure 7 A 3D view of the eccentric knob;

[0026] Figure 8 This is a comparison diagram showing the various states of the eccentric knob and the pusher. Detailed Implementation

[0027] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0028] Example

[0029] The specific embodiments of this utility model are as follows: Figures 1 to 8 As shown, an adjustable speed buffer hinge includes a hinge cup 1, a swing arm 3, and an arm body 2, which are hinged sequentially. A torsion spring 7 is provided at the junction of the swing arm 3 and the arm body 2. A housing 8 is provided on the arm body 2 and slides therewith. The arm body 2 is also provided with a housing position adjustment mechanism for adjusting the relative position of the housing 8 and the arm body 2. The buffer hinge also includes a power oil rod 9 and a power plate 6. The two ends of the power oil rod 9 are in contact with the torsion spring 7 and the housing 8, respectively. The two ends of the power plate 6 are hinged to the swing arm 3 and the arm body 2, respectively. The power plate 6 is linked with the housing 8.

[0030] One end of the power stack 6 is provided with a power hook 61, and the housing 8 is provided with a linkage buckle 81, and the power hook 61 is hooked on the linkage buckle 81.

[0031] In this embodiment, the connection method between the hinge cup 1, swing arm 3, arm body 2, power plate 6, housing 8, and power rod 9 is the same as that described in the patent with announcement number CN219119016U and titled "A Full-Angle Buffer Hinge".

[0032] The housing position adjustment mechanism includes a pusher 4, which is slidably connected to the boom 2. The sliding directions of both the housing 8 and the pusher 4 relative to the boom 2 are parallel to the extension and retraction directions of the power rod 9. One end of the pusher 4 contacts the end of the housing 8 furthest from the torsion spring 7. The housing position adjustment mechanism also includes an adjustment component that is linked to the pusher 4, located between the boom 2 and the pusher 4.

[0033] In this embodiment, the adjusting component is an eccentric knob 5, which includes an operating body 51 and an eccentric shaft 52 connected to each other. The arm body 2 has a shaped hole 211, the length L of which is greater than its width W. The length direction of the shaped hole is perpendicular to the length direction of the arm body, such as... Figure 8 As shown. The operating body 51 is cylindrical and can move and rotate laterally inside the irregular hole 211. The eccentric shaft 52 is offset from the center line of the operating body 51. The pusher 4 is provided with a shaft hole 43, and the eccentric shaft 52 is rotatably connected to the shaft hole 43. A limiting plate with a diameter larger than the eccentric shaft 52 can be provided at one end of the eccentric shaft 52, so that the limiting plate and the operating body 51 are located on the upper and lower sides of the pusher 4, respectively, thereby preventing the eccentric shaft 52 from coming out of the shaft hole 43. The top of the operating body 51 is provided with a cross groove that matches a screwdriver, and the eccentric knob 5 can be rotated relative to the arm body 2 by turning the screwdriver.

[0034] The pushing component 4 includes a guide plate 41 and an end plate 42 connected to each other, which are perpendicular to each other. The adjusting component is linked with the guide plate 41, and the end plate 42 is in contact with the housing 8. Specifically, a shaft hole 43 is provided on the guide plate 41, and the center of the shaft hole 43 is offset from the center line of the guide plate 41, such as... Figure 6 As shown.

[0035] The arm body 2 includes an outer arm body 21 and an inner arm body 22. The inner arm body 22 is located inside the outer arm body 21, and the two are detachably connected by a connector 23. In this embodiment, the connector 23 is a bolt, which passes through the top of both the outer arm body 21 and the inner arm body 22 from top to bottom, and the bolt is threaded to the inner arm body 22. The outer arm body 21 is hinged to the swing arm 3, and the power rod 9 and the housing 8 are both located inside the outer arm body 21. The guide plate 41 of the pusher 4 is sandwiched between the outer arm body 21 and the inner arm body 22, and the end plate 42 of the pusher 4 is located on one side of one end of the inner arm body 22. One end of the power plate 6 is hinged to the outer arm body 21.

[0036] The guide plate 41 is provided with a clearance hole 44, through which the connector 23 passes to avoid interference between the guide plate 41 and the connector 23.

[0037] The power rod 9 includes a rod cylinder 91 and a rod core 92 that are sleeved together. One end of the rod cylinder 91 is in contact with the torsion spring 7, and one end of the rod core 92 is located inside the housing 8 and is in contact with one end of the inner wall of the housing 8. The rod cylinder 91 passes through one end of the housing 8 and the two are in sliding fit.

[0038] When it is necessary to change the closing speed of the door panel (i.e., the swing speed of the hinge cup 1 relative to the arm body 2), the operator can operate the main body 51 of the eccentric knob 5 by turning the eccentric shaft 52 of the eccentric knob 5, which can drive the pusher 4 to move relative to the arm body 2. The pusher 4 pushes the housing 8, causing the housing 8 to move relative to the arm body 2. By changing the relative distance between the housing 8 and the torsion spring 7, the maximum extension and retraction stroke of the power oil rod 9 can be adjusted, thereby changing the angle at which the door panel begins to close slowly, and thus changing the closing speed of the door panel. This structure does not require disassembling the buffer hinge and replacing the power oil rod, making it easy to operate.

[0039] When the maximum extension stroke of the power lever 9 increases, it affects the closing angle of the door panel. The greater the stroke, the larger the closing angle, and the longer it takes to close the door. Conversely, the smaller the stroke, the smaller the closing angle, and the shorter the closing time (meaning the stroke affects the closing angle; the larger the angle, the longer it takes to close the door, and vice versa).

[0040] This solution features an adjustable speed-damping hinge that connects the cabinet door panel and side panel. It is suitable for various hinge specifications, such as straight-bend hinges (also called full-coverage hinges), where the door panel completely covers the end face of the side panel when closed; medium-bend hinges (also called half-coverage hinges), suitable for situations where two doors share a single side panel, where each door panel only covers half of the end face of the side panel when closed; and large-bend hinges (also called concealed hinges), suitable for situations where the door panel is located inside the cabinet, where the door panel does not obstruct the end face of the side panel when closed. Furthermore, in addition to the common 105-degree hinge, this hinge structure is also suitable for hinges with other special angles, such as 90-degree, 30-degree, 45-degree, 135-degree, and 165-degree hinges.

[0041] The present invention has been described above in conjunction with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations made in accordance with the essence of the present invention.

Claims

1. An adjustable speed buffer hinge, comprising a hinge cup (1), a swing arm (3), and an arm body (2) hinged sequentially, wherein a torsion spring (7) is provided at the junction of the swing arm (3) and the arm body (2), characterized in that, The arm body (2) is provided with a housing (8) that slides with it, and the arm body (2) is also provided with a housing position adjustment mechanism for adjusting the relative position of the housing (8) and the arm body (2); it also includes a power oil rod (9) and a power plate (6), the two ends of the power oil rod (9) are in contact with the torsion spring (7) and the housing (8) respectively, the power plate (6) is hinged to the swing arm (3) and the arm body (2) respectively, and the power plate (6) is linked with the housing (8).

2. The adjustable speed buffer hinge according to claim 1, characterized in that, The housing position adjustment mechanism includes a pusher (4), which is slidably connected to the arm (2). The sliding direction of the housing (8) and the pusher (4) relative to the arm (2) is parallel to the extension and retraction direction of the power rod (9). One end of the pusher (4) is in contact with the end of the housing (8) away from the torsion spring (7). The housing position adjustment mechanism also includes an adjustment member that is linked with the pusher (4). The adjustment member is located between the arm (2) and the pusher (4).

3. The adjustable speed buffer hinge according to claim 2, characterized in that, The adjusting component is an eccentric knob (5), which includes an operating body (51) and an eccentric shaft (52) connected to each other; the arm body (2) is provided with a shaped hole (211), the length L of which is greater than its width W; the operating body (51) is cylindrical and can move and rotate laterally inside the shaped hole (211), and the eccentric shaft (52) is offset from the center line of the operating body (51); the pusher (4) is provided with a shaft hole (43), and the eccentric shaft (52) is rotatably connected to the shaft hole (43).

4. An adjustable speed buffer hinge according to claim 2 or 3, characterized in that, The pusher (4) includes a guide plate (41) and an end plate (42) connected to each other. The adjusting member is linked with the guide plate (41), and the end plate (42) is in contact with the housing (8).

5. The adjustable speed buffer hinge according to claim 4, characterized in that, The arm body (2) includes an outer arm body (21) and an inner arm body (22). The inner arm body (22) is located inside the outer arm body (21) and the two are detachably connected by a connector (23). The outer arm body (21) is hinged to the swing arm (3). The power oil rod (9) and the housing (8) are both located inside the outer arm body (21). The guide plate (41) of the pusher (4) is sandwiched between the outer arm body (21) and the inner arm body (22). The end plate (42) of the pusher (4) is located on one side of one end of the inner arm body (22).

6. The adjustable speed buffer hinge according to claim 5, characterized in that, The guide plate (41) is provided with a clearance hole (44), and the connector (23) passes through the clearance hole (44).

7. The adjustable speed buffer hinge according to claim 1, characterized in that, The power rod (9) includes a rod cylinder (91) and a rod core (92) that are sleeved together. One end of the rod cylinder (91) is in contact with the torsion spring (7), and one end of the rod core (92) is located inside the housing (8) and is in contact with one end of the inner wall of the housing (8). The rod cylinder (91) passes through one end of the housing (8) and the two are slidably engaged.

8. The adjustable speed buffer hinge according to claim 1, characterized in that, One end of the power stack (6) is provided with a power hook (61), and the housing (8) is provided with a linkage buckle (81), and the power hook (61) is hooked on the linkage buckle (81).

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