Hinge shaft core capable of elastically adjusting flow

Abstract

The utility model relates to the technical field of hydraulic hinges, and particularly discloses a hinge shaft core capable of elastically adjusting flow, which comprises a support, a core shaft is arranged in the support, one end of the core shaft is provided with a valve core unit, one end of the valve core unit is provided with a rotatable flow adjusting knob, and the flow adjusting knob is arranged on the support. The end, close to the flow adjusting knob, of the support is elastically provided with a telescopic pressing knob unit, and the pressing knob unit corresponds to the flow adjusting knob so that the pressing knob unit can be meshed with or separated from the flow adjusting knob. After adjustment is finished, the pressing knob unit of the hinge shaft core resets under the action of elasticity, so that the pressing knob unit is separated from the flow adjusting knob, and when the hinge shaft core rotates along with a door body, even if the flow adjusting knob rotates, the flow adjusting knob cannot drive the pressing knob unit to rotate together; therefore, the situation of different damping changes caused by opening and closing of the door is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic hinges, in particular to a hinge shaft core which is convenient for speed regulation. 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, a concealed hinge disclosed in Chinese patent document CN115929140A includes a functional shaft, a shell for containing the functional shaft, and a speed regulating screw for adjusting the flow speed of the hydraulic oil in the functional shaft. A longitudinal channel perpendicular to the axial direction of the functional shaft is provided on a plate at one end of the shell, and a transverse channel consistent with the axial direction of the functional shaft is provided on the side wall at the same end of the shell. The transverse channel and the longitudinal channel are staggered and connected. The driving portion of the speed regulating screw is provided on the outside of the functional shaft and extends into the transverse channel on the shell. The longitudinal channel is used to extend into the driving member, and the driving member is provided with an engaging portion engaged with the first tooth.

[0004] Combined with the drawings in the specification disclosed in the above-mentioned prior art, it can be seen that the existing speed regulating screws are all engaged with the driving member and are always in an engaged state. During daily use, since the shaft rotates with the opening and closing of the door, the speed regulating screw is prone to rotation. However, since the speed regulating screw and the driving member are always in an engaged state, the speed regulating screw drives the driving member to rotate together, which causes a certain degree of fine-tuning of the speed regulating screw. As time goes by, it eventually leads to different damping conditions in the opening and closing of the door. Therefore, people need to readjust it frequently, which is more troublesome to use. Utility Model Content

[0005] In order to overcome the defects of the prior art, the present invention provides a hinge shaft core with elastic flow adjustment to solve the above problems.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a hinge shaft core for elastically adjusting flow, including a bracket, a core shaft installed in the bracket, a valve core unit provided at one end of the core shaft, a rotatable flow adjustment knob provided at one end of the valve core unit, and a retractable pressing knob unit elastically provided at one end of the bracket close to the flow adjustment knob, the pressing knob unit corresponding to the flow adjustment knob so that the pressing knob unit can engage or disengage with the flow adjustment knob.

[0007] Furthermore, a mounting block is provided at one end of the bracket close to the flow regulating knob, a knob cavity is opened in the mounting block, the push knob unit includes a push knob, the push knob is elastically arranged in the knob cavity, one end of the push knob passes through the mounting block and is installed with end face teeth, and the other end is provided with an adjusting head, the flow regulating knob is a gear, and the end face teeth correspond to the gear; so that after pressure is applied to the push knob, it can move in the knob cavity, so that the end face teeth engage with the gear.

[0008] Furthermore, a spring sleeved on the push knob is provided in the knob cavity, one end of the spring presses against the inner wall of the knob cavity, and the other end presses against the adjusting head, so that the push knob can be compressed and reset by the spring in the knob cavity.

[0009] Furthermore, the valve core unit includes a valve seat installed inside one end of the core shaft, a valve core head is installed on the internal thread of the valve seat, a conical valve core is provided at one end of the valve core head, and the other end is connected to the flow adjustment knob; so as to facilitate the adjustment of the position of the conical valve core, thereby controlling the flow rate of the hydraulic oil to realize the speed regulation function of the hinge.

[0010] Furthermore, a piston rod is provided in the core shaft, a piston head is provided at one end of the piston rod close to the conical valve core, a valve hole is provided in the piston head, and the conical valve core is inserted into the valve hole.

[0011] The beneficial effect of the present invention is that the push knob unit can engage or disengage with the flow regulating knob, and the push knob unit is elastically arranged. When the hydraulic flow needs to be adjusted, it is only necessary to press the push knob unit so that the push knob unit engages with the flow regulating knob, so that the push knob unit can be rotated to drive the flow regulating knob to rotate, thereby adjusting the hydraulic flow of the core shaft, thereby adjusting the speed, and the operation is convenient. When the adjustment is completed, the push knob unit has no pressure and resets under the action of elasticity, so that the push knob unit is separated from the flow regulating knob, so that when the hinge shaft core rotates with the door body, even if the flow regulating knob rotates, the flow regulating knob will not drive the push knob unit to rotate together, thereby preventing the opening and closing of the door from causing different damping changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is one of the three-dimensional structural diagrams of the hinge axis core of this embodiment.

[0013] Figure 2 This is the second schematic diagram of the three-dimensional structure of the hinge axis core of this embodiment.

[0014] Figure 3 Schematic diagram of the internal structure of the hinge core of this embodiment.

[0015] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0016] Figure 5 It is a schematic diagram of the three-dimensional structure of the valve core unit.

[0017] In the figure: bracket 1, mounting block 2, core shaft 3, flow adjustment knob 4, push knob unit 5, end face teeth 6, valve seat 7, tapered valve core 8, gear 9, knob cavity 10, push knob 11, adjustment head 12, spring 13, valve core head 14, piston rod 15, piston head 16. DETAILED DESCRIPTION

[0018] 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.

[0019] Combine Figures 1 to 5 The hinge shaft core for elastically adjusting flow shown in the figure includes a bracket 1, a core shaft 3 is installed in the bracket 1, a valve core unit is provided at one end of the core shaft 3, a rotatable flow regulating knob 4 is provided at one end of the valve core unit, and a retractable pressing knob unit 5 is elastically provided at one end of the bracket 1 close to the flow regulating knob 4. The pressing knob unit 5 corresponds to the flow regulating knob 4 so that the pressing knob unit 5 can be engaged with or separated from the flow regulating knob 4; the pressing knob unit 5 of this embodiment can be engaged with or separated from the flow regulating knob 4, and the pressing knob unit 5 is elastically arranged. When the hydraulic flow needs to be adjusted, it is only necessary to press The pressing knob unit 5 is pressed down, so that the pressing knob unit 5 engages with the flow regulating knob 4, so that the pressing knob unit 5 can be rotated to drive the flow regulating knob 4 to rotate, thereby adjusting the hydraulic flow of the core shaft, thereby adjusting the speed, and the operation is convenient. When the adjustment is completed, the pressing knob unit 5 has no pressure and resets under the action of elasticity, so that the pressing knob unit 5 is separated from the flow regulating knob 4, so that when the hinge shaft core rotates with the door body, even if the flow regulating knob 4 rotates, the flow regulating knob 4 will not drive the pressing knob unit 5 to rotate together, thereby preventing the opening and closing of the door from causing different damping changes.

[0020] The valve core unit of this embodiment includes a valve seat 7 mounted within one end of a core shaft 3. A valve core head 14 is threadedly mounted within the valve seat 7. A conical valve core 8 is disposed at one end of the valve core head 14, and the other end is connected to a flow control knob 4. By rotating the flow control knob 4, the conical valve core 8 can be moved on the valve seat 7 to adjust the position of the conical valve core 8, thereby controlling the flow rate of the hydraulic oil and achieving the hinge speed regulation function. Furthermore, a piston rod 15 is disposed within the core shaft 3 of this embodiment. A piston head 16 is disposed at one end of the piston rod 15 near the conical valve core 8. The piston head 16 has a valve hole within it, and the conical valve core 8 is inserted into the valve hole. When the conical valve core 8 moves, the taper of the conical valve core 8 changes within the valve hole, thereby changing the distance between the conical valve core 8 and the valve hole, and thus changing the flow rate of the hydraulic oil. The specific structure of the piston rod 15 and the piston head 16 is prior art and will not be further described here.

[0021] In this embodiment, the bracket 1 is provided with a mounting block 2 at one end near the flow regulating knob 4. The mounting block 2 and the bracket 1 are an integrated structure. A knob cavity 10 is provided in the mounting block 2. The pressing knob unit 5 includes a pressing knob 11. The pressing knob is elastically arranged in the knob cavity 10. One end of the pressing knob 11 passes through the mounting block 2 and is provided with an end face tooth 6. The other end is provided with an adjusting head 12. The flow regulating knob 4 is a gear 9. The end face tooth 6 corresponds to the gear 9, so that the center of the flow regulating knob 4 is The axis and the center axis of the end face tooth 6 are in a vertical state, and an adjustment port is opened on the end face of the adjusting head 12. When adjusting, the tool is inserted into the adjustment port, and the pressing knob 11 is applied with pressure. The pressing knob 11 can move in the knob cavity 10, so that the end face tooth 6 is engaged with the gear 9, and then the pressing knob 11 can be rotated to drive the gear 9 to rotate and adjust. After removing the tool, the pressure applied to the pressing knob 11 disappears, and the pressing knob 11 automatically resets, so that the end face tooth 6 is separated from the gear 9.

[0022] In some embodiments, in order to enable the push knob 11 to move elastically within the knob cavity 10, a spring 13 can be provided in the knob cavity 10 and is sleeved on the push knob 11. One end of the spring 13 is pressed against the inner wall of the knob cavity 10, and the other end is pressed against the adjusting head 12, so that the push knob 11 can be compressed and reset by the spring 13 in the knob cavity 10, and the structure is simple and stable.

[0023] 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 hinge shaft core for elastically regulating flow, comprising a bracket (1), wherein a core shaft (3) is installed in the bracket (1), characterized in that: A valve core unit is provided at one end of the core shaft (3), and a rotatable flow regulating knob (4) is provided at one end of the valve core unit. A retractable pressing knob unit (5) is elastically provided at one end of the bracket (1) close to the flow regulating knob (4), and the pressing knob unit (5) corresponds to the flow regulating knob (4) so ​​that the pressing knob unit (5) can be engaged with or separated from the flow regulating knob (4).

2. The hinge core with elastic flow adjustment according to claim 1, characterized in that: A mounting block (2) is provided at one end of the bracket (1) near the flow regulating knob (4), a knob cavity (10) is provided in the mounting block (2), the pressing knob unit (5) comprises a pressing knob (11), the pressing knob is elastically arranged in the knob cavity (10), one end of the pressing knob (11) passes through the mounting block (2) and is provided with an end face tooth (6), and the other end is provided with an adjusting head (12), the flow regulating knob (4) is a gear (9), and the end face tooth (6) corresponds to the gear (9).

3. The hinge core with elastic flow adjustment according to claim 2, characterized in that: A spring (13) sleeved on the pressing knob (11) is provided in the knob cavity (10), one end of the spring (13) presses against the inner wall of the knob cavity (10), and the other end presses against the regulating head (12).

4. The hinge core with elastic flow adjustment according to claim 1, characterized in that: The valve core unit comprises a valve seat (7) installed inside one end of a core shaft (3); a valve core head (14) is installed on the inner thread of the valve seat (7); a conical valve core (8) is provided on one end of the valve core head (14), and the other end is connected to the flow regulating knob (4).

5. The hinge core with elastic flow adjustment according to claim 4, characterized in that: A piston rod (15) is further provided in the core shaft (3), and a piston head (16) is provided at one end of the piston rod (15) close to the conical valve core (8). A valve hole is provided in the piston head (16), and the conical valve core (8) is inserted into the valve hole.

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