Double-shaft hidden hinge

Abstract

The utility model relates to the technical field of hydraulic hinges, and particularly discloses a double-shaft hidden hinge which comprises a base unit, a hydraulic shaft rocker arm set is arranged in the base unit, a speed regulating hole is formed in the base unit, and a speed regulating part perpendicular to the axis direction of the hydraulic shaft rocker arm set is in threaded connection with the interior of the speed regulating hole. The speed regulating part reciprocates in the speed regulating hole so as to regulate the flow of hydraulic oil in the hydraulic shaft rocker arm group; according to the double-shaft hidden hinge, the speed adjusting part can move in the speed adjusting hole, the rotating circle center shaft of the speed adjusting part is perpendicular to the axis direction of the hydraulic shaft rocker arm set, and the speed adjusting part can move in a reciprocating mode in the depth direction of the speed adjusting hole equivalently by twisting a screw in the adjusting process; the flow of hydraulic oil in the hydraulic shaft rocker arm set can be conveniently adjusted, the phenomenon that adjustment is difficult due to the fact that the rotating space is blocked in the adjusting process is prevented, the rotating angle every time is larger, and the adjusting efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic hinges, in particular to a double-axis hidden hinge. Background Art

[0002] Hydraulic hinges usually achieve a buffering function by driving the piston head inside the shaft core to move during the door opening and closing process, so that the hydraulic oil is switched between the two oil pressure chambers through the flow difference.

[0003] For example, the hidden hinge disclosed in Chinese patent document CN221073866U discloses a first mounting groove, and its specification and drawings disclose that the first mounting groove is provided with an adjustment groove, the lower end of the fixing sleeve extends out of the first sleeve, and the first mounting seat is provided with a second connecting hole rotatably connected to the lower end of the fixing sleeve. Specifically, the lower end of the fixing sleeve is rotatably connected to the second connecting hole through a bearing, and an adjusting screw is provided in the fixing sleeve. The upper end of the adjusting screw is threadedly connected to the lower end of the oil filter core, and the lower end of the adjusting screw can be rotatably passed through the second connecting hole and extended into the adjusting groove. Rotating the adjusting screw can make the oil filter core move up and down, thereby adjusting the speed. The lower end of the adjusting screw is provided with a flange, and a plurality of adjustment holes are arranged on the outer periphery of the flange. The flange can be driven to rotate by a pin shaft cooperating with the adjustment hole, thereby driving the adjusting screw to rotate.

[0004] Combined with the above-mentioned prior art, it can be seen that since the adjustment hole is set on the outer periphery of the flange, in the actual adjustment process, a specific tool is required, such as an L-shaped tool, which needs to be inserted into the adjustment hole on the flange for rotation. Moreover, when the flange is rotated, since the axis of the flange is the same as the length direction of the fixing seat, the rotation direction is perpendicular to the fixing seat. At the same time, the flange is built-in, and the rotation space is relatively small, so it is easily blocked. The rotation angle each time is relatively small, and the adjustment is more troublesome, especially for double hydraulic axis hinges, the adjustment efficiency is slower. Utility Model Content

[0005] In order to overcome the defects of the prior art, the utility model provides a double-axis hidden hinge to solve the above problems.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a double-axis hidden hinge, including a base unit, a hydraulic shaft rocker arm group is arranged in the base unit, a speed regulating hole is provided on the base unit, and a speed regulating part perpendicular to the axial direction of the hydraulic shaft rocker arm group is threadedly connected to the speed regulating hole. The speed regulating part moves back and forth in the speed regulating hole to adjust the hydraulic oil flow in the hydraulic shaft rocker arm group.

[0007] In the above-mentioned double-axis hidden hinge, the base unit includes a first fixed base and a second fixed base, a first rotating shaft bracket is installed in the first fixed base, a second rotating shaft bracket is installed in the second fixed base, a hydraulic shaft rocker arm group is installed in the first rotating shaft bracket and the second rotating shaft bracket, and the speed regulating component is respectively installed at one end of the first rotating shaft bracket and the second rotating shaft bracket.

[0008] In the above-mentioned dual-axis hidden hinge, first mounting ears are provided at both ends of the first rotating shaft bracket, and the first mounting ears at both ends are fixedly installed in the first fixed base by screws, and second mounting ears are provided at both ends of the second rotating shaft bracket, and strip holes are provided on the second mounting ears at both ends, and the strip holes are used to install the second rotating shaft bracket in the second fixed base by screws, and the speed adjustment hole is provided on one of the first mounting ears and the second mounting ears.

[0009] In the above-mentioned double-axis hidden hinge, the hydraulic shaft rocker arm group includes a first hydraulic shaft and a second hydraulic shaft, the two ends of the first hydraulic shaft are rotatably connected in the first rotating shaft bracket, and the two ends of the second hydraulic shaft are rotatably connected in the second rotating shaft bracket. The first hydraulic shaft and the second hydraulic shaft are both hinged with rocker arms, and the first hydraulic shaft and the second hydraulic shaft are hinged to each other through the rocker arms.

[0010] In the above-mentioned double-axis hidden hinge, a hydraulic valve core module is provided at one end of the first hydraulic shaft and the second hydraulic shaft close to the speed regulating part, and a speed regulating part guide seat is installed on the outer side of one end of the first rotating shaft bracket and the second rotating shaft bracket close to the hydraulic valve core module by screws. The speed regulating part guide seat is located below the speed regulating hole, and the speed regulating part is positioned and installed between the speed regulating hole and the speed regulating part guide seat.

[0011] In the above-mentioned double-axis hidden hinge, the speed regulating part includes a moving head, a conical head is provided at one end of the moving head, and an adjusting screw is provided at the other end. A guide rod is provided at the end of the conical head away from the moving head. The guide rod is inserted into the guide seat of the speed regulating part, and the adjusting screw is threadedly connected to the speed regulating hole. The outer walls of the moving head and the conical head correspond to the hydraulic valve core module.

[0012] In the above-mentioned double-axis hidden hinge, the hydraulic valve core module includes a valve seat that is plugged and installed at one end of the first hydraulic shaft / second hydraulic shaft, and the valve seat is provided with two sections of open valve core cavities. A valve core component is elastically arranged in the valve core cavity, and one end of the valve core component extends into the first hydraulic shaft / second hydraulic shaft, and the other end contacts the conical head. A bearing is sleeved on the valve seat, and the bearing is connected to the first rotating shaft bracket / second rotating shaft bracket.

[0013] In the above-mentioned biaxial hidden hinge, the valve core component includes a valve core head, a pressure core is provided at one end of the valve core head close to the moving head, and a valve core connecting rod is provided at the other end, and a conical valve core is connected to the end of the valve core connecting rod away from the valve core head. A valve core spring is sleeved on the valve core connecting rod, and one end of the valve core spring abuts against the valve core head, and the other end abuts against the valve core cavity.

[0014] In the above-mentioned biaxial hidden hinge, a sealing ring is sleeved on the outer wall of the valve core head, and the sealing ring is in contact with the inner wall of the valve core cavity.

[0015] The beneficial effect of the present invention is that the speed regulating part can be displaced in the speed regulating hole, and the rotating central axis of the speed regulating part is perpendicular to the axial direction of the hydraulic shaft rocker arm group. The adjustment process is equivalent to twisting the screw, which can make the speed regulating part move back and forth along the depth direction of the speed regulating hole, so as to adjust the hydraulic oil flow in the hydraulic shaft rocker arm group. During the adjustment process, the rotation space is prevented from being blocked and the adjustment difficulty occurs. The angle of each rotation is larger and the adjustment efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the three-dimensional structure of the double-axis hidden hinge of this embodiment.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the first rotating shaft bracket and the first hydraulic shaft.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the second rotating shaft bracket and the second hydraulic shaft.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the hydraulic valve core module and the speed regulating component.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the speed regulating component.

[0021] Figure 6 Schematic diagram of the internal structure of the hydraulic valve core module.

[0022] In the figure: first fixed base 1, second fixed base 2, first rotating shaft bracket 3, first hydraulic shaft 4, second rotating shaft bracket 5, second hydraulic shaft 6, first mounting ear 7, speed regulating hole 8, speed regulating part guide seat 9, speed regulating part 10, second mounting ear 11, hydraulic valve core module 110, valve seat 12, bearing 13, valve core cavity 14, valve core head 15, sealing ring 16, top pressure core 17, valve core connecting rod 18, valve core spring 19, tapered valve core 20, moving head 21, tapered head 22, guide rod 23, and adjusting screw 24. DETAILED DESCRIPTION

[0023] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0024] Combine Figures 1 to 6 The double-axis hidden hinge shown in the figure includes a base unit, a hydraulic shaft rocker group is arranged in the base unit, and a speed regulating hole 8 is arranged on the base unit. The speed regulating hole 8 is threaded with a speed regulating part 10 perpendicular to the axial direction of the hydraulic shaft rocker group. The speed regulating part 10 moves back and forth in the speed regulating hole 8 to adjust the hydraulic oil flow in the hydraulic shaft rocker group; this embodiment enables the speed regulating part 10 to be displaced in the speed regulating hole 8, and the rotating central axis of the speed regulating part 10 is perpendicular to the axial direction of the hydraulic shaft rocker group. The adjustment process is equivalent to twisting the screw, which can make the speed regulating part 10 move back and forth along the depth direction of the speed regulating hole 8, so as to facilitate the adjustment of the hydraulic oil flow in the hydraulic shaft rocker group, and prevent the rotation space from being blocked and the adjustment difficulty from occurring during the adjustment process. The angle of each rotation is larger and the adjustment efficiency is higher.

[0025] like Figures 1 to 3 As shown, the base unit of this embodiment includes a first fixed base 1 and a second fixed base 2. A first rotating shaft bracket 3 is mounted in the first fixed base 1, and a second rotating shaft bracket 5 is mounted in the second fixed base 2. A hydraulic shaft rocker arm assembly is mounted in each of the first and second rotating shaft brackets 3 and 5. A speed regulating member 10 is mounted on one end of each of the first and second rotating shaft brackets 3 and 5, respectively. This ensures that both fixed bases are equipped with hydraulic shaft rocker arm assemblies, and that the speed can be adjusted independently by configuring the corresponding speed regulating member 10.

[0026] The first pivot bracket 3 is provided with a first mounting ear 7 at both ends, and the first mounting ears 7 at both ends are fixedly mounted in the first fixed base 1 by screws. The second pivot bracket 5 is provided with a second mounting ear 11 at both ends, and the second mounting ears 11 at both ends are provided with a strip hole, and the second pivot bracket 5 is mounted in the second fixed base 2 by screws through the strip hole. One of the first mounting ear 7 and the second mounting ear 11 is provided with a speed adjustment hole 8. This allows the first pivot bracket 3 and the second pivot bracket 5 to be easily fixed in the corresponding fixed base. When installing a double-axis hidden hinge, corresponding mounting grooves can be opened on the door and the door frame, and then the first fixed base 1 and the second fixed base 2 can be embedded in the mounting grooves for fixing. The strip hole can be used to adjust the position of the second pivot bracket 5 in the second fixed base 2, thereby driving the first fixed base 1 on the other side to adjust its position.

[0027] Furthermore, the hydraulic shaft rocker arm assembly of this embodiment includes a first hydraulic shaft 4 and a second hydraulic shaft 6. The first hydraulic shaft 4 is rotatably connected to the first rotating shaft bracket 3 at both ends, and the second hydraulic shaft 6 is rotatably connected to the second rotating shaft bracket 5 at both ends. The first hydraulic shaft 4 and the second hydraulic shaft 6 are both hingedly connected to rocker arms, and the first hydraulic shaft 4 and the second hydraulic shaft 6 are hingedly connected to each other via the rocker arms. This allows the first fixed base 1 and the second fixed base 2 to swing relative to each other via the rocker arms, thereby opening and closing the door.

[0028] Further, such as Figure 4 As shown, in this embodiment, the first hydraulic shaft 4 and the second hydraulic shaft 6 are both provided with a hydraulic valve core module 110 on one end near the speed regulating member 10. Speed ​​regulating member guide seats 9 are screwed onto the outer sides of the first rotating shaft bracket 3 and the second rotating shaft bracket 5 on one end near the hydraulic valve core module 110. The speed regulating member guide seats 9 are located below the speed regulating hole 8, and the speed regulating member 10 is positioned and installed between the speed regulating hole 8 and the speed regulating member guide seats 9. This makes the speed regulating member 10 more stable when moving between the speed regulating hole 8 and the speed regulating member guide seats 9, preventing it from being out of position and affecting the speed regulating effect.

[0029] Further, such as Figure 5 and Figure 6 As shown, the speed regulating part 10 of this embodiment includes a moving head 21, a conical head 22 is provided at one end of the moving head 21, and an adjusting screw 24 is provided at the other end. A guide rod 23 is provided at the end of the conical head 22 away from the moving head 21, and the guide rod 23 is inserted into the guide seat 9 of the speed regulating part. The adjusting screw 24 is threadedly connected to the speed regulating hole 8. The outer walls of the moving head 21 and the conical head 22 correspond to the hydraulic valve core module 110; a cross groove is provided on the end face of the adjusting screw 24, and the tool is directly inserted into the speed regulating hole 8. The adjusting screw 24 is directly twisted to move the conical head 22. Since the conical head 22 itself has a taper, the position of contact with the hydraulic valve core module 110 will change, thereby adjusting the speed.

[0030] Furthermore, the hydraulic valve core module 110 of this embodiment includes a valve seat 12 that is pluggably mounted on one end of the first hydraulic shaft 4 / second hydraulic shaft 6. A two-section valve core cavity 14 is defined within the valve seat 12. A valve core member is elastically disposed within the valve core cavity 14. One end of the valve core member extends into the first hydraulic shaft 4 / second hydraulic shaft 6, and the other end contacts the conical head 22. A bearing 13 is sleeved on the valve seat 12, and the bearing 13 is connected to the first rotating shaft bracket 3 / second rotating shaft bracket 5. Because the valve core member is elastically disposed within the valve core cavity 14, the valve core member adaptively displaces within the valve core cavity 14 during the adjustment movement of the conical head 22, thereby facilitating adjustment of the hydraulic oil flow rate.

[0031] Specifically, the valve core assembly includes a valve core head 15. A pressure core 17 is provided at one end of the valve core head 15, close to the moving head 21, and a valve core connecting rod 18 is provided at the other end. The end of the valve core connecting rod 18, away from the valve core head 15, is connected to a conical valve core 20. A valve core spring 19 is sleeved on the valve core connecting rod 18. One end of the valve core spring 19 abuts against the valve core head 15, and the other end abuts within the valve core cavity 14. The pressure core 17 presses against the conical head 22, so that when the conical head 22 moves, the pressure core 17 presses against the valve core spring 19, causing the conical valve core 20 to change position.

[0032] The outer wall of the valve core head 15 of this embodiment is sleeved with a sealing ring 16, which contacts the inner wall of the valve core cavity 14. The sealing ring 16 prevents the valve core cavity 14 from leaking oil.

[0033] It is worth noting that the first hydraulic shaft 4 and the second hydraulic shaft 6 of this embodiment both include a core shell, a hydraulic valve core module 110 is arranged at one end of the core shell, and a piston head that can move back and forth along the length direction of the core shell is also provided in the core shell, and a first hydraulic oil chamber is formed between the piston head and the valve seat 12, and a piston rod is provided at the end of the piston head away from the valve seat 12, and a cam is provided at the end of the piston rod away from the piston head, spiral holes are provided on both sides of the wheel body of the cam, and pins that are clamped in the spiral holes are provided on both sides of the end of the piston rod, and a second hydraulic oil chamber is formed between the piston head and the cam, and a speed regulating valve hole is provided on the end face of the piston head close to the valve seat 12, and an oil hole channel connected to the speed regulating valve hole is provided on the piston rod, and a conical valve core 20 is inserted into the speed regulating valve hole; when the conical valve core 20 is adjusted and extended by the conical head 22, the size of the gap between the conical valve core 20 and the speed regulating valve hole is changed, thereby adjusting the flow rate of oil in and out, thereby adjusting the speed. Among them, the structure in which the piston head moves back and forth along the length direction of the core shell is a prior art and will not be described in detail here.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A double-axis hidden hinge, comprising a base unit, characterized in that: A hydraulic shaft rocker arm group is provided in the base unit, and a speed regulating hole (8) is provided on the base unit. A speed regulating member (10) perpendicular to the axis direction of the hydraulic shaft rocker arm group is connected to the speed regulating hole (8) through an internal thread, so that the speed regulating member (10) moves back and forth in the speed regulating hole (8). The speed regulating member (10) moves back and forth in the speed regulating hole (8) to adjust the flow of hydraulic oil in the hydraulic shaft rocker arm group; The base unit comprises a first fixed base (1) and a second fixed base (2); a first rotating shaft bracket (3) is installed in the first fixed base (1), and a second rotating shaft bracket (5) is installed in the second fixed base (2); The hydraulic shaft rocker arm assembly comprises a first hydraulic shaft (4) and a second hydraulic shaft (6), wherein one end of the first hydraulic shaft (4) and the second hydraulic shaft (6) close to the speed regulating member (10) is provided with a hydraulic valve core module (110), and the outer sides of one end of the first rotating shaft bracket (3) and the second rotating shaft bracket (5) close to the hydraulic valve core module (110) are both screw-mounted with a speed regulating member guide seat (9); The speed regulating component comprises a moving head (21), one end of the moving head (21) is provided with a conical head (22), and the other end is provided with an adjusting screw (24), the end of the conical head (22) away from the moving head (21) is provided with a guide rod (23), the guide rod (23) is inserted into the guide seat (9) of the speed regulating component, the adjusting screw (24) is threadedly connected to the speed regulating hole (8), and the outer walls of the moving head (21) and the conical head (22) both correspond to the hydraulic valve core module (110).

2. A double-axis hidden hinge according to claim 1, characterized in that: A hydraulic shaft rocker arm assembly is installed in each of the first rotating shaft bracket (3) and the second rotating shaft bracket (5), and the speed regulating component (10) is installed at one end of the first rotating shaft bracket (3) and the second rotating shaft bracket (5), respectively.

3. A double-axis hidden hinge according to claim 2, characterized in that: Both ends of the first rotating shaft bracket (3) are provided with first mounting ears (7), and the first mounting ears (7) at both ends are fixedly mounted in the first fixed base (1) by screws. Both ends of the second rotating shaft bracket (5) are provided with second mounting ears (11), and the second mounting ears (11) at both ends are provided with strip holes, and the strip holes are used to mount the second rotating shaft bracket (5) in the second fixed base (2) by screws, and the speed regulating hole (8) is provided on one of the first mounting ears (7) and the second mounting ears (11).

4. A double-axis hidden hinge according to claim 3, characterized in that: The two ends of the first hydraulic shaft (4) are rotatably connected in the first rotating shaft bracket (3), and the two ends of the second hydraulic shaft (6) are rotatably connected in the second rotating shaft bracket (5). The first hydraulic shaft (4) and the second hydraulic shaft (6) are both hinged with rocker arms, and the first hydraulic shaft (4) and the second hydraulic shaft (6) are hinged to each other through the rocker arms.

5. The double-axis hidden hinge according to claim 4, characterized in that: The speed regulating member guide seat (9) is located below the speed regulating hole (8), and the speed regulating member is positioned and installed between the speed regulating hole (8) and the speed regulating member guide seat (9).

6. The double-axis hidden hinge according to claim 5, characterized in that: The hydraulic valve core module (110) includes a valve seat (12) plugged and installed at one end of the first hydraulic shaft (4) / the second hydraulic shaft (6), the valve seat (12) is provided with a valve core cavity (14) with two sections of openings, a valve core member is elastically provided in the valve core cavity (14), one end of the valve core member extends into the first hydraulic shaft (4) / the second hydraulic shaft (6), and the other end contacts the conical head (22), a bearing (13) is sleeved on the valve seat (12), and the bearing (13) is connected to the first rotating shaft bracket (3) / the second rotating shaft bracket (5).

7. The double-axis hidden hinge according to claim 6, characterized in that: The valve core component includes a valve core head (15), wherein a pressure core (17) is provided at one end of the valve core head (15) close to the moving head (21), and a valve core connecting rod (18) is provided at the other end. An end of the valve core connecting rod (18) away from the valve core head (15) is connected to a conical valve core (20), and a valve core spring (19) is sleeved on the valve core connecting rod (18). One end of the valve core spring (19) abuts against the valve core head (15), and the other end abuts against the valve core cavity (14).

8. The double-axis hidden hinge according to claim 7, characterized in that: The outer wall of the valve core head (15) is sleeved with a sealing ring (16), and the sealing ring (16) is in contact with the inner wall of the valve core cavity (14).

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