A clutch mechanism for hinge

Abstract

The present invention relates to a multifunctional buffer hinge, wherein the core shaft comprises a first fixed sleeve and a second fixed sleeve which are coaxially arranged, an axial cavity is opened inside the first fixed sleeve, an adjustment port and a connection port are respectively arranged at two ends of the axial cavity, an axial driving mechanism is arranged in the axial cavity, a driving shaft of the axial driving mechanism passes through the first fixed sleeve from the connection port of the first fixed sleeve along the axial direction, and enters into the second fixed sleeve, a clutch mechanism is arranged in the second fixed sleeve, the clutch mechanism connects the driving shaft and the second fixed sleeve, and the clutch mechanism realizes the connection and separation of the driving shaft and the second fixed sleeve; the present invention has the characteristics of compact structure and convenient assembly.

Description

Technical Field

[0001] The invention relates to a hinge, in particular to a clutch mechanism of a hinge. Background Art

[0002] Hinges are mainly used for the movable connection between doors and windows and door frames or window frames. Traditional hinges are formed by door frame hinges and door leaf hinges hinged on an axis core, and only have the function of rotation. Traditional hinges have no damping effect, cannot prevent wind, and will hit the door frame if closed too quickly, and there are also safety hazards.

[0003] For this purpose, people have designed buffer hinges. For example, announcement number CN 06837042B discloses a hydraulic buffer hinge, which includes a shaft sleeve, a door frame leaf hinged to the shaft sleeve, and a shaft core arranged in the shaft sleeve. The shaft sleeve is outer-coated with a door leaf connected to the shaft core, and one end of the shaft core is provided with a guide portion; the guide portion is outer-coated with a piston engaged with the guide portion; the shaft core is outer-coated with an energy storage spring; one end of the energy storage spring abuts against the upper end of the shaft core, and the other end abuts against the piston; symmetrical lead grooves are provided on both sides of the piston; a rolling sleeve pin is mounted in the shaft sleeve, and the rolling sleeve pin passes through the lead grooves on both sides of the piston, and the rolling sleeve pin is outer-coated with a rolling sleeve matching the lead groove; the lead groove is spiral; the upper part of the lead groove is an opening and closing groove, the middle part is a door stop groove, and the lower part is a buffer groove; the lead Both sides of the middle of the groove are provided with positioning recesses matching the rolling sleeve; an adjusting seat is fixed to the lower end port of the sleeve; an adjusting screw is threaded on the adjusting seat; an oil needle is connected to the adjusting screw; an oil needle sleeve is fixed to the bottom of the piston; a damping hole matching the oil needle is provided on the oil needle sleeve; a damping channel is formed by the gap between the damping hole and the oil needle; the oil needle comprises an upper needle body and a lower needle body, the diameter of the upper needle body is larger than the diameter of the lower needle body, and a step is formed between the upper needle body and the lower needle body; a one-way valve is provided on the oil needle sleeve; the cavity formed between the sleeve and the piston is filled with hydraulic oil; an auxiliary oil groove is provided on the oil needle sleeve, and the auxiliary oil groove is semi-pancake-shaped; the damping hole is located in the middle of the auxiliary oil groove and is connected with it.

[0004] When installing the hinge, the left and right leaf plates of the hinge need to be opened. Since the above structure is provided with an energy storage spring, the elastic force of the energy storage spring makes it difficult to open the leaf plates. Summary of the invention

[0005] The purpose of the present invention is to provide a multifunctional buffer hinge, a clutch mechanism is arranged on the shaft core of the buffer hinge, when the clutch mechanism is in a separated state, the hinge is equivalent to an ordinary hinge without buffering and automatic reset functions, and is easy to install; the present invention has the characteristics of compact structure and easy assembly.

[0006] To achieve the above purpose, the following technical solutions are adopted:

[0007] A clutch mechanism of a hinge includes a core shaft, characterized in that the core shaft includes a first fixed sleeve and a second fixed sleeve arranged coaxially, an axial cavity is opened inside the first fixed sleeve, and an adjustment port and a connection port are respectively arranged at both ends of the axial cavity. An axial driving mechanism is arranged in the axial cavity, and a driving shaft of the axial driving mechanism passes through the first fixed sleeve from the connection port of the first fixed sleeve along the axial direction and enters the second fixed sleeve. A clutch mechanism is arranged in the second fixed sleeve, the clutch mechanism connects the driving shaft and the second fixed sleeve, and the clutch mechanism realizes the connection and separation of the driving shaft and the second fixed sleeve.

[0008] The clutch mechanism comprises a first clutch tooth and a second clutch tooth, the two ends of the second fixed sleeve are respectively an adjustment port and a receiving port, an axial guide tooth is provided on the inner wall between the adjustment port and the receiving port, the first clutch tooth and the second clutch tooth are accommodated in the second fixed sleeve, and a mutually matching axial tooth key is provided between the outer edge of the first clutch tooth and the inner wall of the second fixed sleeve, the second clutch tooth sleeve is arranged on the driving shaft and can rotate axially with the driving shaft, and mutually matching annular clutch teeth are provided on the end faces corresponding to the first clutch tooth and the second clutch tooth, a clutch spring is arranged in the middle of the annular clutch tooth, and the clutch spring applies an axially moving away force to the first clutch tooth and the second clutch tooth; a clutch nut is screwed on the adjustment port, and the clutch nut axially adjusts the position of the first clutch tooth.

[0009] The inner diameter of the accommodating port matches the outer diameter of the connecting port; the connecting port is accommodated in the accommodating port.

[0010] Anti-rotation ribs are provided on the outer walls of the first fixing sleeve and the second fixing sleeve.

[0011] The present invention adds a clutch mechanism, which controls the connection and separation between the first fixed sleeve and the second fixed sleeve. When the clutch mechanism is in a separated state, the axial driving mechanism inside the first fixed sleeve does not work, and the hinge is equivalent to an ordinary hinge without a buffer and automatic reset function. The setting of the clutch mechanism facilitates the hinge piece to be freely rotated during hinge installation. After the installation is completed, the clutch screw is rotated to push the clutch pin toward the clutch groove to restore the buffer and automatic reset functions. The present invention has the characteristics of compact structure and easy assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the mandrel of the present invention;

[0013] Figure 2 It is a schematic diagram of the internal structure of the mandrel of the present invention;

[0014] Figure 3 This is a schematic diagram of the decomposed structure of the mandrel of the present invention (I);

[0015] Figure 4This is a schematic diagram of the decomposed structure of the mandrel of the present invention (II);

[0016] Figure 5 This is a schematic diagram of the decomposed structure of the mandrel of the present invention (III);

[0017] Figure 6 It is a schematic structural diagram of the second fixing sleeve of the present invention. DETAILED DESCRIPTION

[0018] like Figure 1-6 As shown, a multifunctional buffer hinge includes an axis core 1; the axis core 1 includes a first fixed sleeve 2 and a second fixed sleeve 3 arranged coaxially, and the outer walls of the first fixed sleeve 2 and the second fixed sleeve 3 are provided with anti-rotation ribs 9; an axial cavity 21 is opened inside the first fixed sleeve 2, and an adjustment port and a connection port 23 are respectively arranged at both ends of the axial cavity 21, and an axial driving mechanism is arranged in the axial cavity 21, and a driving shaft 41 of the axial driving mechanism axially passes through the first fixed sleeve 2 from the connection port 23 and enters the second fixed sleeve 3, and a clutch mechanism is arranged in the second fixed sleeve 3, the clutch mechanism connects the driving shaft 41 and the second fixed sleeve 2, and the clutch mechanism realizes the connection and separation of the driving shaft 41 and the second fixed sleeve 2.

[0019] The clutch mechanism includes a first clutch tooth 31 and a second clutch tooth 32. The two ends of the second fixed sleeve 3 are respectively provided with an adjustment port 33 and a receiving port 34. The first clutch tooth 31 and the second clutch tooth 32 are received in the second fixed sleeve 2, and an axial tooth key 35 that cooperates with each other is provided between the outer edge of the first clutch tooth 31 and the inner wall of the second fixed sleeve. The second clutch tooth 32 is sleeved on the drive shaft 41 and can rotate axially with the drive shaft 41. The end faces corresponding to the first clutch tooth 31 and the second clutch tooth 32 are provided with a The annular clutch teeth 36 cooperate with each other, and a clutch spring 37 is arranged in the middle of the annular clutch teeth 36. The clutch spring 37 applies an axial force to separate the first clutch tooth 31 and the second clutch tooth 32. A clutch nut 38 is screwed on the adjustment port 33. The clutch nut 38 axially adjusts the position of the first clutch tooth 31 to achieve the combination and separation of the first clutch tooth 31 and the second clutch tooth 32. The inner diameter of the accommodating port 34 matches the outer diameter of the connecting port 23. The connecting port 23 is accommodated in the accommodating port 34.

[0020] The working process of the present invention is as follows:

[0021] When the clutch mechanism is in a separated state: at this time, the first fixed sleeve 2 and the second fixed sleeve 3 are also in a separated state and do not interact with each other. In this state, the damping and buffering functions do not work, and the hinge is equivalent to an ordinary hinge; in this state, the leaves of the hinge can rotate freely, which is convenient for construction.

[0022] When the clutch mechanism is in the engaged state: by rotating the clutch nut 38, the clutch nut 38 pushes the first clutch tooth 31 inward, and the first clutch tooth 31 compresses the clutch spring 37 so that the clutch teeth of the first clutch tooth 31 and the second clutch tooth 32 are meshed with each other. Since an axial tooth key 35 is provided between the first clutch tooth 31 and the second fixed sleeve 3, the first fixed sleeve 2 and the second fixed sleeve 3 are connected through the clutch mechanism and the axial drive mechanism. When the first fixed sleeve 2 and the second fixed sleeve 3 rotate relative to each other, that is, the drive shaft and the drive sleeve rotate relative to the first fixed sleeve 2, the axial drive mechanism intervenes and the buffering and automatic reset functions of the hinge are enabled.

[0023] The present invention adds a clutch mechanism, and the clutch mechanism can rotate freely when installing the hinge, which greatly facilitates the installation work of the installer; the clutch mechanism of the present invention has a reasonable structure, and the matching structure of the axial tooth key and the annular toothed tooth has a reliable connection, is not easy to wear, and is very convenient to assemble.

Claims

1. A hinge clutch mechanism, comprising a core shaft, characterized in that: The core shaft includes a first fixed sleeve and a second fixed sleeve arranged coaxially, an axial cavity is opened inside the first fixed sleeve, an adjustment port and a connection port are respectively arranged at both ends of the axial cavity, an axial driving mechanism is arranged in the axial cavity, a driving shaft of the axial driving mechanism passes through the first fixed sleeve from the connection port of the first fixed sleeve along the axial direction, and enters the second fixed sleeve, a clutch mechanism is arranged in the second fixed sleeve, the clutch mechanism connects the driving shaft and the second fixed sleeve, and the clutch mechanism realizes the connection and separation of the driving shaft and the second fixed sleeve; The clutch mechanism comprises a first clutch tooth and a second clutch tooth, the two ends of the second fixed sleeve are respectively an adjustment port and a receiving port, an axial guide tooth is provided on the inner wall between the adjustment port and the receiving port, the first clutch tooth and the second clutch tooth are received in the second fixed sleeve, and a mutually matching axial tooth key is provided between the outer edge of the first clutch tooth and the inner wall of the second fixed sleeve, the second clutch tooth sleeve is arranged on the driving shaft and can rotate axially with the driving shaft, mutually matching annular clutch teeth are provided on the end faces corresponding to the first clutch tooth and the second clutch tooth, a clutch spring is arranged in the middle of the annular clutch tooth, and the clutch spring applies an axially moving away force to the first clutch tooth and the second clutch tooth; a clutch nut is screwed on the adjustment port, and the clutch nut axially adjusts the position of the first clutch tooth; and anti-rotation ribs are provided on the outer walls of the first fixed sleeve and the second fixed sleeve.

2. The clutch mechanism of a hinge as claimed in claim 1, characterized in that: The inner diameter of the accommodating port matches the outer diameter of the connecting port; the connecting port is accommodated in the accommodating port.

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